WO2019187847A1 - 打込機 - Google Patents
打込機 Download PDFInfo
- Publication number
- WO2019187847A1 WO2019187847A1 PCT/JP2019/006742 JP2019006742W WO2019187847A1 WO 2019187847 A1 WO2019187847 A1 WO 2019187847A1 JP 2019006742 W JP2019006742 W JP 2019006742W WO 2019187847 A1 WO2019187847 A1 WO 2019187847A1
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- WO
- WIPO (PCT)
- Prior art keywords
- operating
- state
- mode
- trigger
- contact
- Prior art date
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- 239000007924 injection Substances 0.000 description 33
- 239000007789 gas Substances 0.000 description 21
- 239000002184 metal Substances 0.000 description 20
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- 238000009825 accumulation Methods 0.000 description 11
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 125000002066 L-histidyl group Chemical group [H]N1C([H])=NC(C([H])([H])[C@](C(=O)[*])([H])N([H])[H])=C1[H] 0.000 description 2
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- 229920002379 silicone rubber Polymers 0.000 description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
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Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25C—HAND-HELD NAILING OR STAPLING TOOLS; MANUALLY OPERATED PORTABLE STAPLING TOOLS
- B25C1/00—Hand-held nailing tools; Nail feeding devices
- B25C1/04—Hand-held nailing tools; Nail feeding devices operated by fluid pressure, e.g. by air pressure
- B25C1/047—Mechanical details
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25C—HAND-HELD NAILING OR STAPLING TOOLS; MANUALLY OPERATED PORTABLE STAPLING TOOLS
- B25C1/00—Hand-held nailing tools; Nail feeding devices
- B25C1/04—Hand-held nailing tools; Nail feeding devices operated by fluid pressure, e.g. by air pressure
- B25C1/041—Hand-held nailing tools; Nail feeding devices operated by fluid pressure, e.g. by air pressure with fixed main cylinder
- B25C1/043—Trigger valve and trigger mechanism
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25C—HAND-HELD NAILING OR STAPLING TOOLS; MANUALLY OPERATED PORTABLE STAPLING TOOLS
- B25C1/00—Hand-held nailing tools; Nail feeding devices
- B25C1/06—Hand-held nailing tools; Nail feeding devices operated by electric power
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25C—HAND-HELD NAILING OR STAPLING TOOLS; MANUALLY OPERATED PORTABLE STAPLING TOOLS
- B25C7/00—Accessories for nailing or stapling tools, e.g. supports
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D2250/00—General details of portable percussive tools; Components used in portable percussive tools
- B25D2250/121—Housing details
Definitions
- the present invention relates to a driving machine having a striking unit that operates with the pressure of a compressible gas.
- Patent Document 1 An example of a driving machine having a pressure chamber to which a compressive gas is supplied and a striking unit that operates with the pressure of the compressible gas supplied to the pressure chamber is described in Patent Document 1.
- the driving machine described in Patent Document 1 includes a striking portion, a piston upper chamber, a main valve chamber, a cylinder, a pressure accumulating chamber, a trigger as an operation member, a push lever as a contact member, and a switching knob.
- the driving machine described in Patent Document 1 when an operating force is applied to the trigger and the push lever is pressed against the mating member, the compressible gas in the pressure accumulating chamber is supplied to the main valve chamber.
- the cylinder operates with the pressure in the main valve chamber, the compressible gas in the accumulator chamber is supplied to the piston upper chamber, and the striking unit operates from the top dead center toward the bottom dead center.
- the operator can switch between the first mode and the second mode by operating a switching knob.
- the first mode an operating force is applied to the trigger after the push lever is pressed against the counterpart material.
- the second mode an operation of pressing the push lever against the mating member is performed in a state where an operating force is applied to the trigger.
- the inventor of the present application has studied a driving machine capable of limiting the operation of the hitting unit when the second mode is selected.
- the hitting unit can be operated by pressing the contact member against the mating member. 1 state and the 2nd state where a hit
- the inventor of the present application examined providing a switching mechanism that switches between the first state and the second state and operates with electric power. Then, the inventor of the present application has recognized that if the supply of power to the switching mechanism is stopped, there is a possibility that the striking unit may not operate with the driving machine. In addition, the present inventors have also recognized a problem that the operator may feel uncomfortable if the timing for generating the function to limit the operating force of the contact member to be transmitted to the gas supply mechanism cannot be set.
- An object of the present invention is to provide a driving machine capable of operating a hitting unit in a direction of hitting a stopper when supply of electric power to a switching mechanism is stopped. Furthermore, the objective of this invention is providing the driving device which can set the timing which the function which restrict
- the second mode is selected, the operator operates the operation member, and The contact member is separated from the counterpart material Is within a predetermined time, power is supplied to the switching mechanism, the switching mechanism enters the first state, the second mode is selected, the operator operates the operating member, and the contact
- the state where the member is separated from the counterpart material exceeds a predetermined time, the supply of power to the switching mechanism is stopped and the switching mechanism enters the second state.
- the driving machine When the power supply to the switching mechanism is stopped, the driving machine according to the embodiment can operate the hitting unit in the direction of hitting the stopper when the first mode is selected.
- the restricting member prevents the operating force of the contact member from being transmitted to the gas supply mechanism.
- FIG. 1B is a partial cross-sectional view of the driving machine of FIG. 1A.
- FIG. It is a partial side view of the state which selected the 1st mode with the driving machine shown in Drawing 1A.
- FIG. 1B is a partial side view showing a state in which the second mode is selected by the driving machine shown in FIG. 1A and the operation of the push lever is blocked.
- FIG. 1B is a partial side view showing a state in which the second mode is selected with the driving machine shown in FIG. 1A and the push lever can be operated.
- It is a block diagram which shows the control system of a driving machine.
- FIG. 13 is a plan sectional view of a rotary solenoid taken along line E1-E1 of FIG.
- FIG. 13 is a partial cross-sectional view taken along line E2-E2 of FIG.
- FIG. 13 is a partial side view of the state which selected the 2nd mode in Embodiment 4 of a driving machine, and the electric power with respect to a rotary solenoid stopped.
- FIG. 16 is a plan sectional view of a rotary solenoid taken along line E1-E1 of FIG.
- FIG. 16 is a partial cross-sectional view taken along line E2-E2 of FIG. It is a partial side view of the state which selected the 2nd mode in Embodiment 4 of a driving machine, and supplied electric power to a rotary solenoid.
- FIG. 19 is a plan sectional view of a rotary solenoid taken along line E1-E1 of FIG. It is a flowchart including the control example 1 of a driving machine. It is a schematic diagram which shows the other example of the push lever provided in a driving machine. It is a longitudinal cross-sectional view which shows Embodiment 5 of a driving machine.
- FIG. 2 is a cross-sectional view showing a trigger and a restriction mechanism provided in the driving machine of FIG. It is a block diagram which shows the control system of the driving machine of FIG. It is sectional drawing in which a trigger is in an operation state and a regulation mechanism is in an initial state. It is sectional drawing in which a trigger is in an operation state and a regulation mechanism is in an operation state. It is sectional drawing in which a trigger is in an operation state, a regulation mechanism is in an initial state, and a trigger valve is in an operation state. It is a flowchart which shows the example 2 of control which the control part provided in the driving machine can perform. It is a flowchart which shows the example 3 of control which can be performed by the control part provided in the driving machine.
- Embodiment 6 of a driving machine It is a fragmentary sectional view showing Embodiment 6 of a driving machine. It is Embodiment 7 of a driving machine, and is a front sectional view in the state where a trigger and a push lever are in an initial position in the 2nd mode. It is Embodiment 7 of a driving machine, and is a plane sectional view at the time of selecting the 1st mode. It is Embodiment 7 of a driving machine, and is a plane sectional view at the time of selecting the 2nd mode. It is Embodiment 7 of a driving machine, and is a front sectional view in the state where a trigger and a push lever are in an operation position in the 2nd mode.
- Embodiment 7 of a driving machine is a front sectional view in the state where a trigger and a push lever are in an initial position in the 1st mode. It is a flowchart which shows the example 4 of control which can be performed in Embodiment 7 of a driving machine. It is a flowchart which shows the example 5 of control which can be performed in Embodiment 7 of a driving machine. It is a fragmentary sectional view showing Embodiment 8 of a driving machine.
- Embodiment 1 of a driving machine will be described with reference to FIG. 1A, FIG. 1B and FIG.
- the driving machine 10 includes a main body 11, a cylinder 12, a hitting unit 13, a trigger 60, an injection unit 15, and a push lever 67.
- a magazine 17 is attached to the driving machine 10.
- the main body 11 includes a cylindrical body 18, a handle 19 connected to the body 18, an exhaust cover 123 fixed to the body 18, and a holder 20 protruding from the outer surface of the body 18.
- the handle 19 protrudes from the outer surface of the trunk portion 18.
- the pressure accumulating chamber 21 is formed across the inside of the handle 19, the inside of the trunk 18, and the inside of the exhaust cover 123.
- the plug 19A is attached to the handle 19, and the air hose is connected to the plug 19A. Compressed air as a compressible gas is supplied into the pressure accumulating chamber 21 from the plug 19A.
- the cylinder 12 is provided in the body portion 18.
- a head valve 22 is provided in the exhaust cover 123.
- the head valve 22 is movable in the direction of the center line A1 of the cylinder 12.
- the head valve 22 has an exhaust passage 23.
- An urging member 24 is provided in the exhaust cover 123, and the urging member 24 urges the head valve 22 in a direction approaching the cylinder 12 in the direction of the center line A1.
- the biasing member 24 is a metal spring as an example.
- a control chamber 25 is provided in the exhaust cover 123. A compressible gas is supplied to or discharged from the control chamber 25.
- the head valve 22 is biased by the pressure in the control chamber 25 in a direction approaching the cylinder 12 in the direction of the center line A1.
- the head valve 22 is urged by the pressure in the pressure accumulating chamber 21 in a direction away from the cylinder 12 in the direction of the center line A1.
- a top cover 124 is attached to the exhaust cover 123.
- a discharge port 125 is formed between the head valve 22 and the top cover 124. The discharge port 125 is connected to the exhaust passage 23.
- the discharge port 125 is opened and closed.
- the discharge port 125 is opened, the piston upper chamber 29 and the external B1 are connected, and when the discharge port 125 is closed, the piston upper chamber 29 and the external B1 are blocked.
- the cylinder 12 is disposed from the inside of the body portion 18 to the inside of the exhaust cover 123.
- An annular holder 31 is provided inside the body portion 18, and the holder 31 supports the cylinder 12.
- the cylinder 12 is positioned with respect to the trunk portion 18 in the direction of the center line A1.
- the striking portion 13 has a piston 26 and a driver blade 27 fixed to the piston 26.
- the piston 26 is disposed in the cylinder 12, and the piston 26 is movable in the direction of the center line A1.
- a seal member 28 is attached to the outer peripheral surface of the piston 26.
- a piston upper chamber 29 is formed between the head valve 22 and the piston 26. The piston upper chamber 29 is connected to the exhaust passage 23.
- a port 30 is formed between the head valve 22 and the cylinder 12.
- the head valve 22 closes the port 30. That is, the pressure accumulation chamber 21 and the piston upper chamber 29 are shut off. Further, the piston upper chamber 29 is connected to the outside B ⁇ b> 1 through the exhaust passage 23.
- the head valve 22 moves away from the cylinder 12, the head valve 22 opens the port 30. That is, the pressure accumulation chamber 21 and the piston upper chamber 29 are connected.
- the bumper 32 is provided inside the trunk portion 18.
- the trunk portion 18 is disposed between the exhaust cover 123 and the injection portion 15 in the direction of the center line A1.
- a bumper 32 is provided inside the body portion 18.
- a part of the bumper 32 is disposed inside the cylinder 12.
- the bumper 32 is disposed at a position closest to the injection unit 15 in the direction of the center line A1.
- the bumper 32 is made of synthetic rubber or silicon rubber.
- the bumper 32 has a shaft hole 33, and the driver blade 27 can move in the direction of the center line A ⁇ b> 1 in the shaft hole 33.
- a piston lower chamber 34 is formed between the piston 26 and the bumper 32.
- the sealing member 28 hermetically blocks the piston lower chamber 34 and the piston upper chamber 29 from each other.
- the trigger 60 is attached to the main body 11.
- the trigger 60 is attached to the main body 11 via a support shaft 61 and a main shaft 62.
- the main shaft 62 has a cylindrical shape, and the main shaft 62 is rotatable with respect to the main body 11 within a range of a predetermined angle around the center line D1.
- the support shaft 61 is provided around a center line D2 that is eccentric from the center line D1.
- a mode selection member 63 is attached to the main shaft 62.
- the mode selection member 63 is attached to the first end portion in the longitudinal direction of the main shaft 62.
- the mode selection member 63 stops. The operator selects the mode in which the driving machine 10 is used by operating the mode selection member 63.
- the mode selection member 63 has a first operation position and a second operation position. The first operation position and the second operation position differ in the position of the main shaft 62 in the rotation direction. The first operation position and the second operation position differ by, for example, 180 degrees in the rotation direction of the main shaft 62.
- the mode selection member 63 is a lever or a knob.
- an arm 64 is attached to the trigger 60.
- the arm 64 is operable with respect to the trigger 60 within a range of a predetermined angle around the support shaft 65.
- the support shaft 65 is provided on the trigger 60, and the support shaft 65 is provided at a position different from the support shaft 61.
- a biasing member 66 that biases the arm 64 and the trigger 60 is provided.
- the biasing member 66 is, for example, a metal compression spring.
- the arm 64 is urged clockwise in FIG. 1B by the urging member 66.
- the free end of the arm 64 biased by the biasing member 66 contacts the holder 20 and stops at the initial position.
- the urging force of the urging member 66 is applied to the trigger 60 via the arm 64 and the support shaft 65.
- the trigger 60 is urged counterclockwise by the urging member 66 about the support shaft 61.
- the arm 64 stops at the initial position, the trigger 60 contacts the holder 20 and stops at the initial position.
- the trigger valve 51 is provided at a connection portion between the body portion 18 and the handle 19.
- the trigger valve 51 includes a plunger 52, a valve body 55, an urging member 53, a passage 54 and an exhaust passage 56.
- the plunger 52 is operated by the urging force of the urging member 53 and the operating force of the arm 64.
- the passage 54 is connected to the control chamber 25 through a passage 57.
- the injection part 15 is fixed to the body part 18, and the injection part 15 has an injection path 58.
- the center line A1 is located in the injection path 58, and the driver blade 27 is movable in the direction of the center line A1 in the injection path 58.
- the injection unit 15 regulates the operation direction of the driver blade 27 so as to be in the direction of the center line A1.
- the magazine 17 is fixed to the injection unit 15.
- the magazine 17 accommodates the nails 59.
- the plurality of nails 59 are accommodated in the magazine 17 in a state of being connected to each other by a connecting element.
- the magazine 17 has a feeder, and the feeder sends the nail 59 in the magazine 17 to the injection path 58.
- the push lever 67 is made of metal or nonmetal.
- the push lever 67 is provided so as to be capable of reciprocating in the direction of the center line A1 with respect to the injection portion 15.
- a contact 68 is provided at the end of the push lever 67.
- the contact 68 can contact and separate from the counterpart material 69.
- the counterpart material 69 is an object into which the nail 59 is driven.
- An urging member 70 is provided, and the urging member 70 urges the push lever 67 in the direction of the center line A1 in a direction away from the body portion 18.
- the biasing member 70 is provided in the holder 20 as an example.
- the biasing member 70 is a metal compression spring.
- the injection unit 15 is provided with a positioning unit, and the push lever 67 urged by the urging member 70 comes into contact with the positioning unit and stops at the initial position.
- a transmission member 72 is connected to the push lever 67.
- the transmission member 72 is provided at an end located opposite to the contact 68 in the operation direction of the push lever 67.
- the holder 20 supports the transmission member 72 so as to be operable in the direction of the center line A1.
- the transmission member 72 contacts the arm 64, the operating force of the push lever 67 is transmitted to the arm 64.
- the transmission member 72 is separated from the arm 64, the operating force of the push lever 67 is not transmitted to the arm 64.
- the transmission member 72 is biased in a direction away from the arm 64 by the biasing member 70.
- the engaging portion 75 is provided on the push lever 67.
- the engaging portion 75 is disposed between the contact 68 and the transmission member 72 in the direction of the center line A1.
- a switching mechanism 76 is provided in the main body 11.
- the switching mechanism 76 includes a cam 77, a solenoid 78, an operation member 79, and a stopper 80.
- the cam 77 is attached to the main shaft 62.
- the outer peripheral surface of the cam 77 is curved, and a small diameter portion 81 and a large diameter portion 82 are provided on the outer peripheral surface of the cam 77.
- the outer diameter of the large diameter portion 82 is larger than the outer diameter of the small diameter portion 81.
- the small diameter part 81 and the large diameter part 82 are both curved and provided continuously.
- the operation member 79, the stopper 80, and the cam 77 are made of metal as an example.
- the solenoid 78 includes a coil 83, a plunger 84, and an urging member 85.
- the plunger 84 is made of a magnetic material, for example, iron.
- the plunger 84 is operable in the direction of the center line A2.
- the center line A2 is parallel to the center line A1.
- the urging member 85 urges the plunger 84 in such a direction as to approach the stopper 80.
- the biasing member 85 is a metal compression spring as an example.
- the coil 83 is made of a conductive material, and when a current flows through the coil 83, a magnetic attractive force is formed.
- the plunger 84 operates in a direction approaching the stopper 80 with a magnetic attractive force.
- the operating member 79 is movable in the direction of the center line A2, and the operating member 79 is connected to the plunger 84.
- An inclined surface 86 is provided at the end of the actuating member 79 opposite to the plunger 84. The inclined surface 86 is inclined with respect to the center line A2.
- the stopper 80 is movable in the direction of the center line A3.
- the center line A3 intersects the center lines A1 and A2.
- FIG. 2 shows an example in which the center line A3 and the center lines A1 and A2 intersect at an angle of 90 degrees.
- a guide part 87 is provided in the injection part 15, and the guide part 87 guides the movement of the stopper 80. Further, the guide part 87 restricts the range in which the stopper 80 moves in the direction of the center line A3. The guide part 87 prevents the stopper 80 from moving in the direction of the center line A1.
- An inclined surface 88 is provided on the stopper 80.
- the inclined surface 88 is parallel to the inclined surface 86.
- the inclined surface 86 and the inclined surface 88 are in contact with each other, and an operating force in the direction of the center line A3 is applied from the operating member 79 to the stopper 80.
- An engaging portion 89 is provided on the stopper 80.
- An urging member 90 is provided, and the urging member 90 urges the stopper 80 in the direction of the center line A3.
- the biasing member 90 is a metal compression spring as an example.
- a wall 91 is provided in the injection unit 15. The wall 91 is disposed between the engaging portion 75 and the body portion 18 in the direction of the center line A1.
- the engaging portion 89 When the stopper 80 is operated, the engaging portion 89 is movable within and outside the operating range of the engaging portion 75. That is, the engaging portion 89 can enter and leave the space C ⁇ b> 1 between the engaging portion 75 and the wall 91.
- the urging member 90 urges the stopper 80 in a direction that causes the engaging portion 89 to enter the space C1.
- FIG. 5 is a block diagram showing a control system of the driving machine 10.
- the driving machine 10 includes a trigger switch 92, a push lever switch 93, a power switch 94, a control unit 95, a power source 96, a switch circuit 97, and a solenoid 78.
- the solenoid 78 is an example of the actuator 120.
- the power source 96 has a battery cell accommodated in a case. As the battery cell, a secondary battery that can be repeatedly charged and discharged can be used. The battery cell may be a primary battery. As an example, the power supply 96 can be detachably provided on the outer surface of the magazine 17.
- the power source 96 is connected to the solenoid 78 via the switch circuit 97.
- the power switch 94 is disposed in an electric circuit 98 between the power source 96 and the control unit 95. The power switch 94 is turned on or off according to the operation position of the mode selection member.
- the control unit 95 is a microcomputer including an input interface, an output interface, a storage unit, an arithmetic processing unit, and a timer.
- the signal of the trigger switch 92 and the signal of the push lever switch 93 are input to the control unit 95.
- the operator holds the handle 19 and operates the mode selection member 63 to select the first mode or the second mode.
- the first mode is selected when the striker 13 is operated by applying an operating force to the trigger 60 with a finger while the contact 68 of the push lever 67 is pressed against the mating member 69.
- the second mode is selected when the striking unit 13 is operated by pressing the contact 68 against the mating member 69 in a state where the operator applies an operation force to the trigger 60 with a finger.
- the first operation position corresponds to the first mode
- the second operation position corresponds to the second mode.
- the support shaft 61 is eccentric with respect to the main shaft 62. For this reason, the positional relationship between the transmission member 72 and the arm 64 changes according to the mode selected by the operator.
- the operating position of the operating member 79 is a position where the operating member 79 is farthest from the solenoid 78 in the direction of the center line A2. Further, the stopper 80 is biased by the reaction force between the inclined surface 86 and the inclined surface 88, and the engaging portion 89 is retracted from the space C1. Furthermore, the engaging part 89 contacts the guide part 87, and the stopper 80 stops.
- the plunger 52 of the trigger valve 51 is stopped at the initial position. For this reason, the pressure accumulation chamber 21 and the passage 54 are connected, and the passage 54 and the exhaust passage 56 are blocked. That is, the trigger valve 51 is in an initial state.
- the trigger valve 51 When the trigger valve 51 is in the initial state, the compressed air in the pressure accumulating chamber 21 is supplied to the control chamber 25 via the passage 57.
- the head valve 22 is pressed against the cylinder 12 by the urging force of the urging member 24, and the head valve 22 closes the port 30.
- the piston upper chamber 29 is connected to the outside B ⁇ b> 1 through the discharge port 125. For this reason, the piston 26 is stopped in a state where it is pressed against the head valve 22 by the pressure of the piston lower chamber 34. Thus, the striking part 13 is stopped at the top dead center.
- the engaging portion 89 is located outside the space C1.
- the push lever 67 is operable, and the operating force of the push lever 67 is transmitted to the transmission member 72.
- the arm 49 is actuated by the actuating force of the transmission member 72.
- the plunger 52 is not actuated, and the plunger 52 is stopped at the initial position.
- the trigger valve 51 When the trigger valve 51 is in an activated state, the compressed air in the control chamber 25 is discharged to the outside B1 through the passage 57 and the exhaust passage 56, and the pressure in the control chamber 25 becomes the same as the atmospheric pressure.
- the head valve 22 When the pressure in the control chamber 25 becomes equal to the atmospheric pressure, the head valve 22 operates against the urging force of the urging member 24 with the pressure in the pressure accumulating chamber 21. That is, the head valve 22 shuts off the piston upper chamber 29 and the external B1 and opens the port 30. For this reason, the compressed air in the pressure accumulating chamber 21 is supplied to the piston upper chamber 29 via the port 30. Accordingly, the striking portion 13 operates in the direction of the center line A1 from the top dead center toward the bottom dead center, and the driver blade 27 strikes the nail 59 in the injection path 58.
- the piston 26 collides with the bumper 32, and the bumper 32 absorbs a part of the kinetic energy of the hitting portion 13.
- the position of the hitting portion 13 when the piston 26 collides with the bumper 32 is the bottom dead center.
- the trigger valve 51 When the operator moves the tip part away from the counterpart material 69 or releases the operating force on the trigger 60, the trigger valve 51 is switched from the operating state to the initial state. Then, the head valve 22 is operated by the urging force of the urging member 24, connects the piston upper chamber 29 and the external B1, and closes the port 30. For this reason, the piston upper chamber 29 becomes atmospheric pressure, the striking portion 13 operates from the bottom dead center toward the top dead center with the pressure of the piston lower chamber 34, and the piston 26 contacts the head valve 22 at the top dead center. Stop.
- the arm 64 stops within the operating range of the transmission member 72. . For this reason, even if the contact 68 is pressed against the mating member 69 and the push lever 67 is operated, the operating force of the transmission member 72 is not transmitted to the plunger 52. Therefore, the trigger valve 51 is maintained in the initial state, and the striking portion 13 is stopped at the top dead center.
- the plunger 84 contacts the small diameter portion 81 of the cam 77, and the plunger 84 stops at the initial position.
- the operating member 79 stops at the operating position closest to the solenoid 78.
- the engaging portion 89 is positioned in the space C1 and the stopper 80 stops.
- the control part 95 supplies the electric power of the power supply 96 to the solenoid 78, moves the plunger 84 from the initial position shown in FIG. 3 to the operating position shown in FIG. 4, and stops it. That is, the control unit 95 continues the control for supplying power to the solenoid 78. For this reason, the engaging part 89 is located outside the space C1, and the stopper 80 stops. In addition, the control unit 95 measures the elapsed time from when the operating force is applied to the trigger 60.
- control unit 95 continues to supply power to the solenoid 78 when the elapsed time being measured is within a predetermined time. For this reason, when the tip is pressed against the mating member 69, the push lever 67 can be operated. The operating force of the push lever 67 is transmitted to the plunger 52 of the trigger valve 51, and the trigger valve 51 enters an operating state. Therefore, the striking unit 13 operates from the top dead center toward the bottom dead center. Moreover, the control part 95 will reset the measured elapsed time, if the front-end
- control unit 95 stops supplying power to the solenoid 78 when the elapsed time being measured exceeds a predetermined time. Therefore, the plunger 84 returns to the initial position in FIG. 3 from the operating position and stops.
- the stopper 80 prevents the push lever 67 from operating. Therefore, the push lever 67 does not operate and the trigger valve 51 is maintained in the initial state. That is, the striking portion 13 is stopped at the top dead center.
- control part 95 will reset the measured elapsed time, if an operator cancels
- the engaging portion 89 is positioned outside the space C ⁇ b> 1. To do. Therefore, the operating force of the push lever 67 can be transmitted to the plunger 52 of the trigger valve 51, and the striking portion 13 can be operated from the top dead center to the bottom dead center.
- Embodiment 2 of the driving machine 10 is shown in FIG. 6, FIG. 7 and FIG.
- Plunger 84 and actuating member 79 are formed of a single member. That is, the plunger 84 and the operating member 79 are integrated.
- the actuating member 79 has a pin 99.
- the stopper 80 has a guide hole 100.
- the guide hole 100 is a long hole.
- the guide hole 100 is inclined with respect to the center line A2.
- the pin 99 is disposed in the guide hole 100, and the pin 99 is movable in the longitudinal direction of the guide hole 100. Note that the urging member shown in FIG. 2 is not provided.
- the control unit 95 supplies power to the solenoid 78. Then, the plunger 84 operates from the initial position, and the plunger 84 stops at the operating position shown in FIG. That is, the plunger 84 is separated from the cam 77. When the plunger 84 stops at the operating position, the engaging portion 89 is positioned outside the space C1, and the stopper 80 stops.
- the control unit 95 continues to supply power to the solenoid 78 when the contact 68 is pressed against the mating member 69 when the elapsed time is within the predetermined time. Further, the control unit 95 resets the elapsed time being measured.
- the control unit 95 supplies power to the solenoid 78. Stop. Then, the plunger 84 returns to the initial position shown in FIG. 7 from the operating position shown in FIG. 8 and stops. Therefore, the driving machine 10 according to the second embodiment can obtain the same effects as those of the driving machine 10 according to the first embodiment.
- Embodiment 3 of the driving machine is shown in FIG. 9, FIG. 10, and FIG.
- the switching mechanism 76 includes an urging member 101, and the urging member 101 urges the plunger 84 in a direction in which the plunger 84 approaches the stopper 80.
- the direction in which the urging member 101 urges the plunger 84 is opposite to the direction in which the urging member 85 in the first and second embodiments urges the plunger 84.
- the operating member 79 is integrated with the plunger 84, and the guide hole 102 is provided in the stopper 80.
- the guide hole 102 is a long hole.
- the direction in which the guide hole 102 is inclined is opposite to the direction in which the guide hole 100 is inclined in the second embodiment.
- a pin 99 is provided on the actuating member 79, and the pin 99 is movable in the guide hole 100.
- an urging member 90 is provided, and the urging member 90 urges the stopper 80 to approach the space C1.
- the engaging portion 103 is attached to the main shaft 62.
- the engaging portion 103 rotates and stops together with the main shaft 62.
- the engaging portion 104 is attached to the plunger 84. When the engaging portion 103 rotates, the engaging portion 103 can be engaged with and released from the engaging portion 104.
- the control unit 95 supplies power to the solenoid 78. Then, the plunger 84 operates from the initial position shown in FIG. 10 and stops at the operating position shown in FIG. When the plunger 84 stops at the operating position, the stopper 80 stops and the engaging portion 89 is located outside the space C1. Then, when the elapsed time being measured is within a predetermined time and the operator presses the contact 68 against the mating member 69, the control unit 95 continues to supply power to the solenoid 78 and measures. Reset elapsed time.
- the push lever 67 can be operated, and the operating force of the transmission member 72 is transmitted to the trigger valve 51 via the arm 64, the trigger valve 51 is switched from the initial state to the operating state, and the hitting unit 13 is at the top dead center. Operates from to the bottom dead center.
- the control unit 95 stops supplying power to the solenoid 78. To do. Then, the plunger 84 moves from the operating position shown in FIG. 11 to the initial position shown in FIG. 10 and stops. Therefore, when the push lever 67 contacts an object other than the counterpart material 69 into which the nail 59 is driven, the hitting portion 13 can be prevented from operating from the top dead center to the bottom dead center.
- the third embodiment of the driving machine 10 can obtain the same effects as those of the first embodiment of the driving machine 10.
- the switching mechanism 76 includes a rotary solenoid 208, an arm 105, and a stopper 106.
- the rotary solenoid 208 is an example of the actuator 120 and includes a coil 107 and a plunger 108. When a current flows through the coil 107, a rotational force of a predetermined angle is generated in the plunger 108 by a magnetic attractive force.
- the plunger 108 is rotatable around the center line A2.
- a pin 109 is provided on the outer peripheral surface of the plunger 108.
- a stopper 110 is provided on the main shaft 62.
- the stopper 110 has a hook shape, and when the main shaft 62 rotates, the stopper 110 is engaged with or released from the pin 109.
- the main shaft 62 is assumed to rotate clockwise by a predetermined angle in FIG. Further, when switching from the second mode to the first mode, the main shaft 62 is assumed to rotate by a predetermined angle counterclockwise in FIG.
- the arm 105 is fixed to the plunger 108.
- the arm 105 has a recess 121.
- An urging member 111 shown in FIG. 14 is provided.
- the biasing member 111 is a metal spring as an example.
- the biasing member 111 applies a clockwise rotational force to the plunger 108 and the arm 105.
- the direction of the rotational force applied to the plunger 108 by the biasing member 111 is opposite to the direction of the rotational force applied to the plunger 108 by energizing the coil 107.
- a support shaft 112 is provided in the injection unit 15, and the stopper 106 is a lever that can be operated within a predetermined angle range with the support shaft 112 as a fulcrum.
- the stopper 106 has an engaging portion 122.
- the engaging portion 122 has a length in the direction of the center line A1.
- An end portion of the stopper 106 opposite to the engaging portion 122 is disposed in the concave portion 121. That is, the arm 105 and the stopper 106 are connected so that power can be transmitted.
- the arm 105 When the plunger 108 rotates within a predetermined angle range, the arm 105 operates within the predetermined angle range. The operating force of the arm 105 is transmitted to the stopper 106, and the stopper 106 operates within a predetermined angle range with the support shaft 112 as a fulcrum. When the stopper 106 is actuated, the engaging part 122 can enter and leave the space C1.
- the control system shown in FIG. 5 can be used for the driving machine 10 shown in FIG.
- the rotary solenoid 208 is connected to the power source 96 via the switch circuit 97.
- the control unit 95 can control supply and stop of electric power from the power supply 96 to the rotary solenoid 208.
- the control unit 95 supplies power to the rotary solenoid 208. do not do. Then, the stopper 110 is released from the pin 109 as shown in FIGS. Further, as shown in FIG. 17, the arm 105 is operated clockwise together with the plunger 108 by the urging force of the urging member 111, the arm 105 is stopped, and the stopper 106 is stopped. At least a part of the engaging portion 122 is located in the space C1.
- the control unit 95 supplies power to the rotary solenoid 208. Then, the plunger 108 operates counterclockwise from the position shown in FIGS. 16 and 17, and the plunger 108 stops at the position shown in FIGS. 14 and 19. When the plunger 108 and the arm 105 are stopped and the stopper 106 is stopped, the engaging portion 122 is located outside the space C1. Then, when the elapsed time being measured is within a predetermined time and the operator presses the tip portion against the mating member 69, the control unit 95 continues to supply power to the rotary solenoid 208 and performs measurement. Reset elapsed time. Therefore, the operating force of the push lever 67 is transmitted to the trigger valve 51 via the transmission member 72, the trigger valve 51 is switched from the initial state to the operating state, and the striking unit 13 operates from the top dead center toward the bottom dead center. .
- the control unit 95 supplies power to the rotary solenoid 208. Stop. Then, the plunger 108 operates clockwise from the position shown in FIGS. 19 and 14 and stops at the position shown in FIGS. 16 and 17. Further, the stopper 106 stops, and at least a part of the engaging portion 122 is located in the space C1. For this reason, when the push lever 67 contacts an object other than the counterpart material 69 into which the nail 59 is driven, the operation of the push lever 67 can be prevented. Therefore, it is possible to prevent the striking portion 13 from operating from the top dead center toward the bottom dead center.
- the fourth embodiment of the driving machine 10 can obtain the same effects as those of the first embodiment of the driving machine 10.
- FIG. 20 shows a control example 1 performed in at least one of the embodiments 1, 2, 3, and 4 of the driving machine 10.
- the power switch 94 is turned on and the control unit 95 is activated in step S2.
- the control unit 95 determines whether an operating force is applied to the trigger 60. If the control part 95 judges No in step S3, it will progress to step S2.
- step S3 When determining that the result of step S3 is Yes, the control unit 95 supplies power to the actuator 120 and starts measuring elapsed time in step S4. The control unit 95 determines in step S5 whether the push lever 67 is pressed against the mating member 69 within a predetermined time from the time when the trigger 60 is operated.
- step S5 If the control unit 95 determines Yes in step S5, the measured elapsed time is reset in step S6, and the supply of power to the actuator 120 is continued.
- step S7 the striking unit 13 operates from the top dead center toward the bottom dead center, and the process proceeds to step S4.
- step S8 the power supply to the actuator 120 is stopped, the elapsed time being measured is reset, and the control example 1 in FIG.
- the control unit 95 when the control unit 95 supplies power to the actuator 120, the control unit 95 performs the first control, the second control, and the third control. Either can be selected.
- the first control supplies power to the actuator 120 when the second mode is selected and an operating force is applied to the trigger 60.
- the second control is a control for supplying power to the actuator 120 when the second mode is selected.
- the third control is a control for supplying power to the actuator 120 when the second mode is selected and the push lever 67 is pressed against the counterpart material 69.
- a gap is formed between the engaging portion 75 and the stoppers 80 and 106. Then, before the push lever 67 is pressed against the mating member 69 and the engaging portion 75 contacts the stopper 80 or the stopper 106, electric power is supplied to the actuator 120, so that the stopper 80 or the stopper 106 is removed from the space C1. Evacuate. Therefore, the stoppers 80 and 106 do not block the operation of the push lever 67, and the operating force of the push lever 67 is transmitted to the plunger 52 of the trigger valve 51 via the transmission member 72.
- the push lever 67 includes a first element 204 and a second element 205 that are divided in the operation direction.
- a cylindrical member 207 is attached to the first element 204, and a part of the second element 205 is disposed in the cylindrical member 207.
- the second element 205 is movable with respect to the first element 204.
- An elastic member 206 is interposed between the first element 204 and the second element 205.
- the elastic member 206 includes a metal spring and synthetic rubber.
- the first element 204 is connected to the transmission member 72.
- the stopper 80 can enter and leave the space C2.
- the second element 205 can contact and separate from the counterpart material 69.
- the push lever 67 having this configuration, when the second element 205 is pressed against the mating member 69 while the stopper 80 is positioned in the space C2, the operation of the first element 204 is restricted by the stopper 80.
- the second element can be operated within a range of deformation of the elastic member 206. That is, the second element 205 that is a part of the push lever 67 is in operation, but the operating force of the second element 205 is not transmitted to the transmission member 72.
- a stopper 106 may be provided instead of the stopper 80.
- the driving machine 10 is an example of a driving machine
- the trigger 60 is an example of an operation member
- the push lever 67 is an example of a contact member
- the piston upper chamber 29 is an example of a pressure chamber.
- the hitting unit 13 is an example of a hitting unit.
- the trigger valve 51, the head valve 22, the control chamber 25, the port 30, and the discharge port 125 are examples of driving units.
- the mode selection member 63 is an example of a mode selection member.
- the state in which the trigger valve 51 is in the operating state and the head valve 22 is opening the port 30 is an example of the supply state of the drive unit.
- the state where the trigger valve 51 is in the initial state and the head valve 22 opens the discharge port 125 is an example of the discharge state of the drive unit.
- the state where the engaging portion 89 of the stopper 80 is located in the space C1 or the state where the engaging portion 122 of the stopper 106 is located in the space C1 is an example of a first state of the switching mechanism.
- the state where the engaging portion 89 of the stopper 80 is located outside the space C1 and the state where the engaging portion 122 of the stopper 106 is located outside the space C1 are examples of the second state of the switching mechanism.
- the solenoid 78, the rotary solenoid 208, the operation member 79, and the stoppers 80 and 106 are examples of a switching mechanism.
- the port 30 is an example of a supply port, and the discharge port 125 is an example of a discharge port.
- the trigger valve 51 is an example of a valve.
- the power supply 96 is an example of a power supply, and the control unit 95 is an example of a control unit.
- the solenoid 78 and the rotary solenoid 208 are an example of a release mechanism.
- the stoppers 80 and 106 are examples of restricting members.
- the space C1 is an example of an operating range.
- the urging members 90 and 111 are an example of a holding mechanism.
- the injection unit 15 is an example of a guide unit.
- the first mode can be defined as a single shot, and the second mode can be defined as a continuous shot.
- the compressible gas includes an inert gas such as nitrogen gas or a rare gas in addition to air.
- the operation member includes a lever, a button, an arm, and the like.
- the operating member may be any one that can rotate within a predetermined angle range or that can reciprocate linearly.
- the contact member includes a lever, a shaft, an arm, and the like. The contact member can reciprocate linearly.
- an electric motor can be used instead of the solenoid or the rotary solenoid.
- the electric motor what is called a stepper motor or a pulse motor is used. Examples where the supply of power to the actuator is stopped include the following two examples. The first example is a case where the voltage of the power source becomes less than the voltage necessary for operating the actuator. The second example is a case where the electric circuit between the power source and the actuator is disconnected.
- the control unit may be an electric component or a single electronic component, or may be a unit having a plurality of electrical components or a plurality of electronic components.
- the electrical component or electronic component includes a processor, a control circuit, and a module.
- the pressure chamber and the control chamber include spaces, regions, and passages through which compressed gas is supplied and discharged.
- the supply port for supplying the compressive gas to the pressure chamber includes a port, a passage, a hole, and a gap.
- the discharge port for discharging the compressible gas from the pressure chamber includes a port, a passage, a hole, and a gap.
- the driving machine 510 includes a main body 511, a cylinder 512, a hitting unit 513, a trigger 514, an injection unit 515, and a push lever 516.
- a magazine 517 is attached to the driving machine 510.
- the main body 511 includes a cylindrical body 518, a head cover 519 fixed to the body 518, and a handle 520 connected to the body 518. The handle 520 protrudes from the outer surface of the body 518.
- the pressure accumulating chamber 521 is formed over the inside of the handle 520, the inside of the body portion 518, and the inside of the head cover 519.
- a plug is attached to the handle 520 and an air hose is connected to the plug. Compressed air as a compressible gas is supplied into the pressure accumulation chamber 521 through an air hose.
- the cylinder 512 is provided in the body portion 518.
- a head valve 522 is provided in the head cover 519.
- the head valve 522 has a cylindrical shape, and the head valve 522 is movable in the direction of the center line 5A1 of the cylinder 512.
- the head valve 522 has an exhaust passage 523.
- the exhaust passage 523 is connected to the outside B1 of the main body 511.
- a control chamber 524 is formed between the head cover 519 and the head valve 522.
- a biasing member 525 is provided in the control chamber 524.
- the biasing member 525 is, for example, a metal compression coil spring.
- a stopper 526 is attached to the head cover 519.
- the stopper 526 is made of synthetic rubber as an example.
- the cylinder 512 is positioned and fixed with respect to the body 518 in the direction of the center line 5A1.
- a valve seat 527 is attached to the end of the portion closest to the head valve 522 in the direction of the center line 5A1.
- the valve seat 527 is annular and made of synthetic rubber.
- a port 528 is formed between the head valve 522 and the valve seat 527.
- the head valve 522 is urged toward the valve seat 527 in the direction of the center line 5A1 by the urging force of the urging member 525 and the pressure of the control chamber 524.
- the head valve 522 is urged away from the valve seat 527 by the pressure in the pressure accumulating chamber 521.
- the head valve 522 is pressed against the valve seat 527, and the head valve 522 closes the port 28.
- the head valve 522 is separated from the valve seat 527 and the head valve 522 opens the port 528.
- the striking portion 513 includes a piston 529 and a driver blade 530 fixed to the piston 529.
- the piston 529 is disposed in the cylinder 512, and the piston 529 is movable in the direction of the center line 5A1.
- a seal member 531 is attached to the outer peripheral surface of the piston 529.
- a piston upper chamber 532 is formed between the stopper 526 and the piston 529.
- the injection portion 515 is fixed to the end of the body 518 opposite to the portion where the head cover 519 is provided in the direction of the center line 5A1.
- a bumper 533 is provided in the cylinder 512.
- the bumper 533 is disposed in the cylinder 512 at a position closest to the injection portion 515 in the direction of the center line 5A1.
- the bumper 533 is made of synthetic rubber or silicon rubber.
- the bumper 533 has a shaft hole 534, and the driver blade 530 is movable in the direction of the center line 5A1 in the shaft hole 534.
- a piston lower chamber 535 is formed between the piston 529 and the bumper 533.
- the seal member 531 shuts off the piston lower chamber 535 and the piston upper chamber 532 in an airtight manner.
- Passages 536 and 537 that penetrate the cylinder 512 in the radial direction are provided.
- the passage 537 is disposed between the passage 536 and the injection portion 515 in the direction of the center line 5A1.
- a return air chamber 538 is formed between the outer surface of the cylinder 512 and the body 518.
- a check valve 539 is provided in the cylinder 512. Compressed air is enclosed in the piston lower chamber 535 and the return air chamber 538.
- the trigger 514 is attached to the main body 511.
- the trigger 514 is attached to the main body 511 via a support shaft 540.
- the trigger 514 operates within a predetermined angle range around the support shaft 540, that is, can rotate.
- the trigger 514 has a stopper 541. The operator holds the handle 520 with his / her hand and applies or releases the operation force to the trigger 514 with his / her finger. When the operator applies operating force to the trigger 514, the trigger 514 operates counterclockwise in FIG.
- An arm 542 is attached to the trigger 514.
- the arm 542 can be operated with respect to the trigger 514 within a predetermined angle range around the support shaft 543.
- the free end 544 of the arm 542 is located between the support shaft 540 and the support shaft 543 in the length direction of the trigger 514.
- a biasing member 545 that biases the arm 542 about the support shaft 543 is provided.
- the biasing member 545 is a metal spring as an example.
- the urging member 545 urges the arm 542 counterclockwise in FIG. A part of the urging force applied to the arm 542 is transmitted to the trigger 514.
- the trigger 514 is urged clockwise in FIG. 23 by the urging member 545.
- the trigger valve 546 is provided at a connection portion between the body 518 and the handle 520.
- the trigger valve 546 includes a plunger 547, a body 548, a valve body 549, an urging member 550, seal members 551 and 552 provided in the valve body 549, a passage 553 provided in the body 548, and an exhaust passage 554.
- the exhaust passage 554 is connected to the outside B1.
- a passage 555 is provided in the main body 511, and the passage 553 is connected to the control chamber 524 through the passage 555.
- the plunger 547 can move in the direction of the center line 5A2, and the valve body 549 moves and stops in the direction of the center line 5A2 according to the position of the plunger 547 in the direction of the center line 5A2.
- the seal members 551 and 552 contact or separate from the body 548, respectively.
- the seal member 551 is separated from the body 548, the pressure accumulating chamber 521 and the passage 553 are connected, the seal member 552 contacts the body 548, and the passage 553 and the exhaust passage 554 are blocked.
- the seal member 551 comes into contact with the body 548, the pressure accumulating chamber 521 and the passage 553 are shut off, the seal member 552 is separated from the body 548, and the passage 553 and the exhaust passage 554 are connected.
- the injection part 515 shown in FIG. 22 is made of metal or non-ferrous metal, for example.
- the injection unit 515 has an injection path 556.
- the center line 5A1 is located in the injection path 556, and the driver blade 530 is movable in the direction of the center line 5A1 in the injection path 556.
- the magazine 517 is fixed with respect to the injection unit 515.
- the magazine 517 accommodates the nails 557.
- the magazine 517 has a feeder 558, and the feeder 558 sends the nail 557 in the magazine 517 to the injection path 556.
- the push lever 516 is attached to the injection unit 515.
- the push lever 516 can be operated within a predetermined range in the direction of the center line 5A1 with respect to the injection portion 515.
- a transmission mechanism 559 shown in FIGS. 22 and 23 is provided.
- the transmission mechanism 559 transmits the operating force of the push lever 516 to the plunger 547.
- the transmission mechanism 559 includes a plunger 560, a cylinder 561, a pin 562, and an urging member 563.
- Plunger 560, cylinder 561, and pin 562 are made of metal.
- a holder 564 and an adjuster 565 are provided on the main body 511.
- the holder 564 has a cylindrical shape, and the holder 564 and the adjuster 565 support the cylinder 561 in an operable manner.
- Plunger 560, cylinder 561 and pin 562 are operable in the direction of center line 5A3.
- the center line 5A2 and the center line 5A3 are parallel to each other.
- the center line 5A2 and the center line 5A3 may be arranged coaxially.
- the push lever 516 and the plunger 560 are connected so that the operating force can be transmitted.
- Plunger 560 and cylinder 561 are connected so as to be able to transmit the operating force.
- the cylinder 561 has a support hole 566, and the urging member 563 is disposed in the support hole 566.
- a part of the pin 562 in the direction of the center line 5A3 is disposed in the support hole 566, and a part of the pin 562 in the direction of the center line 5A3 is disposed outside the support hole 566.
- the biasing member 563 is a metal compression spring as an example. The biasing member 563 biases the pin 562 in the direction of approaching the trigger valve 546 in the direction of the center line 5A3.
- the spring constant of the biasing member 563 is larger than the spring constant of the biasing member 550.
- a concave portion 561 ⁇ / b> A is provided on the outer peripheral surface of the cylinder 561.
- an engaging portion 567 is provided on the outer surface of the portion arranged outside the support hole 566.
- the outer surface of the engaging portion 567 has an arc shape.
- the free end 544 of the arm 542 is disposed between the plunger 547 and the pin 562 in the direction of the center line 5A3.
- a regulating mechanism 568 shown in FIG. 23 is provided.
- the restriction mechanism 568 shown in FIG. 23 is provided in the trigger 514 as an example.
- the restriction mechanism 568 has a function of preventing the operating force of the pin 562 from being transmitted to the plunger 547.
- the restriction mechanism 568 includes a stopper 569, an electromagnet 570, and an urging member 571.
- the stopper 569 is made of synthetic resin or metal, and the stopper 569 is supported by a support shaft 540.
- the stopper 569 can be operated within a predetermined angle range with respect to the trigger 514 about the support shaft 540, that is, can be rotated.
- a permanent magnet 572 is attached to the stopper 569.
- the biasing member 571 is, for example, a metal torsion coil spring. The biasing member 571 biases the stopper 569 counterclockwise in FIG.
- the electromagnet 570 includes a magnetic material and a conductive coil.
- the electromagnet 570 generates a magnetic force when a current passes through the coil, and the magnetic force disappears when a current does not pass through the coil.
- the direction of the current passing through the coil is set so that the magnetic force generated by the electromagnet 570 repels the magnetic force of the permanent magnet 572. That is, the polarity of the electromagnet 570 is the same as the polarity of the permanent magnet 572.
- the electromagnet 570 is disposed within the operating range of the stopper 569. When no current flows through the electromagnet 570, the stopper 569 biased by the biasing member 571 is pressed against the electromagnet 570 and stops at the initial position.
- the stopper 569 When power is supplied to the electromagnet 570 and the electromagnet 570 generates a magnetic force, the stopper 569 operates clockwise in FIG. 23 against the urging force of the urging member 571 and stops at a position away from the electromagnet 570. To do.
- FIG. 24 is a block diagram showing a control system of the driving machine 510.
- the driving machine 510 includes a mode selection member 573, a power switch 574, a trigger sensor 575, a push lever sensor 576, a control unit 577, a power source 578, a current control circuit 579, and an actuator 580.
- the current control circuit 579 is provided between the power source 578 and the actuator 580.
- a battery pack can be used as an example of the power source 578.
- the battery pack includes a case and a battery accommodated in the case.
- the battery pack can be attached to and detached from the outer surface of the main body 511 or the outer surface of the magazine 517.
- the mode selection member 573 is provided on the main body 511.
- the mode selection member 573 is, for example, a lever that can be operated within a predetermined angle range.
- the mode selection member 573 has a first operation position corresponding to the first mode and a second operation position corresponding to the second mode.
- the operator applies operating force to the trigger 514 in a state where the push lever 516 shown in FIG.
- the push lever 516 is brought into contact with the mating member 581 in a state where the operator applies an operating force to the trigger 514.
- the operator releases the operating force on the trigger 514 and operates the mode selection member 573 to select the first mode or the second mode while the push lever 516 is separated from the counterpart material 581.
- the power switch 574 shuts off the power source 578 and the control unit 577 when the mode selection member 573 is in the first operation position, and turns off the power source 578 and control unit 577 when the mode selection member 573 is in the second operation position.
- the power switch 574 is a contact switch, for example, a tactile switch.
- the current control circuit 579 includes a plurality of field effect transistors.
- the trigger sensor 575 outputs a signal corresponding to the presence / absence of an operating force with respect to the trigger 514 and the operating state of the push lever 516.
- a contact sensor can be used as an example.
- the trigger 514 is operable between an initial position and an operating position.
- the initial position of the trigger 514 is a position where a part of the trigger 514 comes into contact with the holder 564 and stops as shown in FIG. Note that the position where the arm 542 contacts the pin 562 with the force of the biasing member 545 and the trigger 514 is stopped can be defined as the initial position.
- the operating position of the trigger 514 is a position where a part of the trigger 514 comes into contact with the body 548 or the main body 511 and the trigger 514 stops.
- the trigger sensor 575 has a contact 575A.
- the trigger sensor 575 When the object is pressed against the contact 575A, the trigger sensor 575 is turned on. When the force with which the object pushes the contact 575A is reduced or separated, the trigger sensor 575 is turned off. To do. In the present embodiment, the trigger sensor 575 is turned on or off in the following cases.
- the trigger sensor 575 is turned off regardless of the position of the push lever 516 when the trigger 514 is stopped at the initial position as shown in FIG.
- the trigger sensor 575 is turned on when an operating force is applied to the trigger 514 to stop at the operating position, and the push lever 516 is separated from the mating member 581.
- the trigger 514 stopped at the operating position does not contact the trigger sensor 575, and when a part of the arm 542 presses the contact 575A, the trigger sensor 575 is turned on.
- the trigger sensor 575 when the trigger sensor 575 is on, the push lever 516 is pressed against the mating member 581 to operate the pin 562 from the initial position, and when the pin 562 reaches the operating position shown in FIG.
- the trigger sensor 575 is turned off. This is because the arm 542 pressed by the pin 562 operates clockwise, and the force by which the arm 542 presses the contact 575A decreases. In this way, the trigger sensor 575 can be turned on or off while the trigger 514 is stopped at the operating position.
- the trigger sensor 575 shown in FIG. 23 is provided on the outer surface of the handle 520 as an example.
- the push lever sensor 576 outputs a signal corresponding to the push lever 516 passing through the initial position or the operating position and a signal corresponding to the push lever 516 passing through an intermediate position between the initial position and the operating position.
- a contact sensor that outputs a signal corresponding to the position of the cylinder 561 in the direction of the center line 5A3 without directly detecting the plunger operation of the push lever 516 is disclosed.
- the push lever sensor 576 is turned off when the push lever 516 reaches the operating position. Specifically, the push lever sensor 576 is separated from the cylinder 561 at a position corresponding to the recess 561A and is turned off. Signals from the trigger sensor 575 and the push lever sensor 576 are input to the control unit 577.
- the control unit 577 is a microcomputer having an input interface, an output interface, a storage unit, an arithmetic processing unit, and a timer.
- the control unit 577 starts when the power switch 574 is turned on, and stops when the power switch 574 is turned off.
- Actuator 580 includes an electromagnet 570.
- the control unit 577 controls connection and disconnection of the current control circuit 579 and controls the direction of current with respect to the electromagnet 570.
- the control unit 577 determines that an operating force is applied to the trigger 514.
- the control unit 577 determines that the push lever 516 is pressed against the counterpart material 581 and is activated.
- the control unit 577 determines that the operating position has been reached after the push lever 516 is operated.
- the trigger valve 546 When the trigger valve 546 is in the initial state, the pressure accumulation chamber 521 and the passage 553 are connected, and the passage 553 and the exhaust passage 554 are blocked. For this reason, the compressed air in the pressure accumulation chamber 521 is supplied to the control chamber 524, and the head valve 522 closes the port 528. That is, the head valve 522 blocks the pressure accumulation chamber 521 and the piston upper chamber 532.
- the head valve 522 connects the piston upper chamber 532 and the exhaust passage 523, and the piston upper chamber 532 is connected to the external B 1 through the exhaust passage 523. Therefore, the pressure in the piston upper chamber 532 is the same as the atmospheric pressure, and is lower than the pressure in the piston lower chamber 535. For this reason, the piston 529 is stopped while being pressed against the stopper 526 by the pressure of the piston lower chamber 535. In this manner, the hitting portion 513 is stopped at the top dead center shown in FIG.
- the operator selects the first mode or the second mode by operating the mode selection member 573 in a state where the operation force with respect to the trigger 514 is released and the push lever 516 is separated from the counterpart material 581.
- the power switch 574 When the operator selects the first mode, the power switch 574 is turned off. That is, the power of the power source 578 is not supplied to the control unit 577, and the control unit 577 is stopped. In addition, power is not supplied to the electromagnet 570. For this reason, the stopper 569 is stopped at the initial position in contact with the electromagnet 570. When the trigger 514 stops at the initial position and no electric power is supplied to the electromagnet 570, the stopper 569 that stops at the initial position is located outside the operating range of the pin 562, in particular, outside the operating range of the engaging portion 567.
- the push lever 516 is pressed against the mating member 581 in a state where the operator releases the operation force with respect to the trigger 514.
- the push lever 516 operates in a direction approaching the bumper 533 by the reaction force that presses the push lever 516 against the mating member 581.
- the operating force of the push lever 516 is transmitted to the pin 562 via the plunger 560, the biasing member 563, and the cylinder 561.
- the pin 562 operates in a direction approaching the plunger 547 in the direction of the center line 5A3.
- the stopper 569 is located outside the operating range of the engaging portion 567 and does not block the operation of the pin 562.
- the operating force of the pin 562 is transmitted to the arm 542, and the arm 542 operates counterclockwise in FIG. When the pin 562 stops, the arm 542 also stops. At this time, the operating force of the arm 542 is not transmitted to the plunger 547, and the trigger valve 546 is in the initial state.
- the trigger 514 When the operator applies an operating force to the trigger 514 in a state where the push lever 516 is pressed against the counterpart member 581, the trigger 514 operates counterclockwise in FIG. 23 about the support shaft 540. The arm 542 then operates with the trigger 514. When the trigger 514 is pressed against the trigger sensor 575 and stops at the operating position, the arm 542 also stops. When the trigger 514 operates counterclockwise and stops at the operating position, the engaging portion 567 of the pin 562 is positioned between the tip of the stopper 569 and the free end 544 of the arm 542 in the direction of the center line 5A3.
- the operating force of the arm 542 is transmitted to the plunger 547 in the process in which the trigger 514 operates counterclockwise.
- the plunger 547 operates from the initial position against the urging force of the urging member 550, and the trigger valve 546 is in an activated state.
- the arm 542 transmits the operating force to the plunger 547 in cooperation with the trigger 514.
- the trigger valve 546 When the trigger valve 546 is activated, the pressure accumulating chamber 521 and the passage 553 are shut off, and the passage 553 and the exhaust passage 554 are connected. Therefore, the compressed air in the control chamber 524 is discharged to the outside B1 through the passage 555, the passage 553, and the exhaust passage 554, and the pressure in the control chamber 524 becomes the same as the atmospheric pressure.
- the head valve 522 When the pressure in the control chamber 524 becomes the same as the atmospheric pressure, the head valve 522 operates against the biasing force of the biasing member 525 with the pressure in the pressure accumulating chamber 521. For this reason, the head valve 522 blocks the piston upper chamber 532 and the exhaust passage 523 and opens the port 528. That is, the pressure accumulation chamber 521 and the piston upper chamber 532 are connected, and the pressure in the piston upper chamber 532 increases.
- the striking portion 513 When the pressure in the piston upper chamber 532 becomes higher than the pressure in the piston lower chamber 535, the striking portion 513 operates in the direction of the center line 5A1 from the top dead center to the bottom dead center, and the driver blade 530 moves along the injection path 556. The nail 557 is hit. The hit nail 557 is driven into the counterpart material 581.
- the piston 529 collides with the bumper 533, and the bumper 533 absorbs a part of the kinetic energy of the hitting portion 513.
- the position of the hitting portion 513 when the piston 529 collides with the bumper 533 is the bottom dead center. Further, while the hitting portion 513 is operating from the top dead center toward the bottom dead center, the check valve 539 opens the passage 536, and the compressed air in the piston lower chamber 535 flows into the return air chamber 538 from the passage 536.
- the operator separates the push lever 516 from the mating member 581 and releases the operating force for the trigger 514. Then, the pin 562 operates in a direction away from the plunger 547 by the urging force of the urging member 545. Then, the pin 562 operates or the stopper 569 resists the urging force of the urging member 571 in a state where the engaging portion 567 contacts the tip of the stopper 569 and the stopper 569 is pressed against the electromagnet 570. Then, the pin 562 operates in a state where the stopper 569 is separated from the electromagnet 570 by operating clockwise, and the pin 562 and the stopper 569 stop at the initial position shown in FIG.
- the trigger valve 546 returns from the operating state to the initial state, the head valve 522 closes the port 528, and connects the piston upper chamber 532 and the exhaust passage 523. Then, the pressure in the piston upper chamber 532 becomes the same as the atmospheric pressure, and the piston 529 operates from the bottom dead center toward the top dead center with the pressure in the piston lower chamber 535. The compressed air in the return air chamber 538 flows into the piston lower chamber 535 via the passage 537, and the striking portion 513 returns to the top dead center and stops.
- the power switch 574 When the operator operates the mode selection member 573 to select the second mode, the power switch 574 is turned on and the control unit 577 is activated. As shown in FIG. 23, the operator operates the trigger 514 while keeping the push lever 516 away from the mating member 581 while the trigger 514 is stopped at the initial position and the pin 562 is stopped at the initial position. A force is applied, trigger 514 is actuated counterclockwise in FIG. 23, and trigger 514 is stopped in the actuated position. Then, the stopper 569 operates counterclockwise in FIG. 23 together with the trigger 514 and stops at the operation position shown in FIG. 25 together with the trigger 514. When the stopper 569 stops at the operating position, the tip of the stopper 569 is positioned within the operating region of the engaging portion 567. Further, the arm 542 is separated from the pin 562 and comes into contact with the stopper 541 and stops.
- the controller 577 when the controller 577 detects from the signal of the trigger sensor 575 that an operating force has been applied to the trigger 514, the controller 577 supplies power to the electromagnet 570 and starts measuring elapsed time.
- the controller 577 supplies power to the electromagnet 570 when the elapsed time is within a predetermined time.
- the stopper 569 When the electromagnet 570 generates a magnetic force, the stopper 569 operates clockwise as shown in FIG. 26 against the urging force of the urging member 571, and the tip of the stopper 569 is outside the operating region of the engaging portion 567. Stop.
- the push lever sensor 576 When the elapsed time is within the predetermined time and the push lever 516 is pressed against the mating member 581, the push lever sensor 576 is turned on. Further, the cylinder 561 and the pin 562 operate in a direction approaching the plunger 547 from the initial position, and the cylinder 561 and the pin 562 stop at the operating position. When the cylinder 561 reaches the operating position, the push lever sensor 576 is turned off, and the control unit 577 stops supplying power to the electromagnet 570. For this reason, the stopper 569 returns to the initial position and stops.
- the operating force of the pin 562 is transmitted to the plunger 547 via the arm 542.
- the trigger valve 546 is switched from the initial state shown in FIG. 26 to the operating state shown in FIG. Accordingly, the striking portion 513 operates from the top dead center toward the bottom dead center, and the striking portion 513 drives the nail 557 into the counterpart material 581.
- the control unit 577 stops supplying power to the electromagnet 570 and resets the elapsed time. That is, the stopper 569 stops at the initial position shown in FIG. When the trigger 514 is in the operating position and the stopper 569 stops at the initial position, the tip of the stopper 569 is positioned within the operating range of the engaging portion 567.
- the tip of the stopper 569 is engaged with the engaging portion 567. That is, the stopper 569 prevents the operating force of the push lever 516 from being transmitted to the plunger 547. Therefore, the trigger valve 546 is maintained in the initial state, and the striking unit 513 is stopped at the initial position.
- the stopper 569 can prevent the operating force of the push lever 516 from being transmitted to the trigger valve 546 in conjunction with the operator applying an operating force to the trigger 514.
- electric power is supplied to the electromagnet 570 only within a predetermined time from when the operating force is applied to the trigger 514. Therefore, the power consumption of the power source 578 can be reduced as much as possible.
- the power consumption of the power source 578 can be reduced as much as possible.
- the operator selects the first mode. Then, when the push lever 516 is pressed against the mating member 581, the stopper 569 does not block the operation of the pin 562, and the pin 562 can move from the initial position to the operating position. Therefore, the striking part 513 can be operated from the top dead center toward the bottom dead center.
- an urging member 563 is provided between the cylinder 561 and the pin 562.
- a metal spring is used as the urging member 563, if the force with which the engaging portion 567 is pressed against the stopper 569 is excessive, the spring is elastically deformed, so that the load received by the stopper 569 can be reduced. Therefore, the load on the regulation mechanism 568 can be reduced.
- FIG. 28 is a flowchart illustrating a control example 2 that can be performed by the control unit 577. 28 includes items other than the operations performed by the operator and the controls performed by the control unit 577.
- the driving machine 510 is in an initial state. The initial state of the driving machine 510 means that the operating force for the trigger 514 is released, the push lever 516 is separated from the mating member 581, and the power supply to the actuator 580 is stopped.
- the control unit 577 determines whether or not the trigger sensor 575 is turned on by applying an operating force to the trigger 514 in step S2. As shown in FIG. 26, the trigger sensor 575 is turned on when the arm 542 operating counterclockwise with the pin 562 as a fulcrum presses the contact 575A. If the control unit 577 determines No in step S2, it ends the control example 2 in FIG. If the control unit 577 determines Yes in step S2, it supplies power to the actuator 580 in step S3 and starts measuring the elapsed time.
- step S4 the control unit 577 determines whether or not the push lever sensor 576 is turned on and turned off within a predetermined time from the start of elapsed time measurement. If the control unit 577 determines Yes in step S4, it determines that the push lever 516 has reached the operating position, and stops power supply to the actuator 580 in step S5.
- step S6 When the push lever 516 is operated and the pin 562 reaches the operating position while the trigger 514 is stopped at the operating position, the trigger sensor 575 is switched from on to off in step S6. When trigger sensor 575 is turned off, control unit 577 resets the elapsed time in step S6.
- the trigger valve 546 is switched from the initial state to the operating state, and the striking unit 513 is moved to the top dead center in step S ⁇ b> 7. Operates from to the bottom dead center.
- the controller 577 detects that the push lever 516 has been returned to the initial position in step S8. In addition, the control unit 577 determines whether or not the operating force with respect to the trigger 514 is released in step S9. When the push lever 16 is stopped at the initial position and the trigger sensor 575 is turned off, the control unit 77 determines that the operating force on the trigger 514 has been released. If the control unit 577 determines No in step S9, the intention of the operator is to continue the striking work in the second mode, and the control unit 577 proceeds to step S3.
- step S9 the control example 2 in FIG. If the controller 577 determines No in step S4, it stops power supply to the actuator 580 in step S10. Therefore, the stopper 569 is maintained at the initial position as shown in FIG. That is, even if the push lever 516 is pressed against the counterpart material 581, the hitting portion 513 is stopped at the top dead center. Further, when the operator releases the operating force on the trigger 514 in step S11, the control unit 577 resets the elapsed time in step S12, and the control example 2 in FIG. 28 ends.
- FIG. 29 is a flowchart showing a control example 3 that can be performed by the control unit 577. Note that FIG. 29 includes items other than the operations performed by the operator and the controls performed by the control unit 577. When the process or determination in the step shown in FIG. 29 is the same as the process or determination in the step shown in FIG. 28, the same step code as in FIG.
- step S2 of FIG. 29 the control unit 577 starts measuring elapsed time from when the trigger sensor 575 is turned on in step S31.
- step S41 the control unit 577 determines whether or not the push lever sensor 576 is turned on within a predetermined time from the start of measurement of the elapsed time. If the control unit 577 determines Yes in step S41, it supplies power to the actuator 580 in step S42.
- step S43 When detecting that the push lever sensor 576 is turned off in step S43, the controller 577 determines that the pin 562 has reached the operating position of FIG. 27, stops supplying power to the actuator 580 in step S5, and proceeds to step S6. .
- step S41 After the controller 577 determines No in step S41, the operator performs an operation in step S11. Then, the control part 577 resets elapsed time by step S12, and complete
- an urging member 563 is provided in the operating force transmission path between the push lever 516 and the pin 562.
- the urging member 563 is made of a buffer member, for example, a metal spring or a synthetic rubber, the urging member 563 has the push lever 516 in a state where the operation of the pin 562 is restricted by the stopper 569. Part of the impact when touching an object can be absorbed or mitigated. Therefore, the load on the regulation mechanism 568 can be reduced.
- the trigger sensor 575 is turned on and off.
- the push lever 516 is not pressed against the mating member 581 within a predetermined time from when the operating force is applied to the trigger 514, the elapsed time is reset by releasing the operating force of the trigger 514.
- the push lever 516 is pressed against the counterpart material 581 within a predetermined time from the time when the operating force is applied to the trigger 514 in the first state, and the striking portion 513 operates from the top dead center toward the bottom dead center.
- control part 577 can detect the 2nd state which resets elapsed time with the signal of the single trigger sensor 575, and can perform corresponding control.
- the second state includes a state immediately before the hitting unit 513 operates from the top dead center toward the bottom dead center.
- the present embodiment when the present embodiment is compared with the case where sensors or switches for detecting the first state and the second state are respectively provided, the number of parts can be reduced in the present embodiment.
- a nailing machine having a structure for supplying a compressible gas from the outside of the main body to the pressure accumulating chamber, when the number of parts is reduced, an increase in the weight of the main body can be suppressed, and an increase in the size of the mechanism can be suppressed. It is particularly effective.
- Embodiment 6 of the driving machine 510 is shown in FIG.
- the same structure as the structure shown in FIG. 22 is denoted by the same reference numeral as that shown in FIG.
- the stopper 569 is urged counterclockwise in FIG. 30 by the urging member 571.
- a pin 582 is provided on the trigger 514.
- the trigger 514 is provided with an electromagnet 570A. The polarity of the electromagnet 570A when power is supplied is different from that of the permanent magnet 572.
- the stopper 569 biased by the biasing member 571 comes into contact with the pin 582 and stops at the initial position of the two-dot chain line.
- the stopper 569 operates clockwise against the urging force of the urging member 571, contacts the electromagnet 570A, and stops at the operating position indicated by a solid line. 30 has the control system shown in FIG.
- the electromagnet 570A is an example of the actuator 580.
- the pin 562 When the trigger 514 is in the initial state and the operator brings the push lever 516 into contact with the mating member 581 and the push lever 516 is actuated from the initial position, the pin 562 is operable. For this reason, the trigger valve 546 is switched from the initial state to the operating state, and the striking part 513 operates from the top dead center toward the bottom dead center. Further, the operation of the pin 562 is not blocked by the stopper 569 in the process in which the push lever 516 is separated from the counterpart material 581 and the pin 562 returns from the operating position to the initial position.
- the principle is the same as that of the fifth embodiment of the driving machine 510.
- the control unit 577 can perform the control example 2 in FIG. 28 or the control example 3 in FIG.
- the controller 577 supplies power to the electromagnet 570A in step S3 of FIG. 28, the stopper 569 operates from the initial position indicated by the two-dot chain line to the operating position indicated by the solid line, and stops at the operating position.
- the stopper 569 stops at the operating position, the stopper 569 is positioned outside the operating range of the engaging portion 567. For this reason, when the push lever 516 is operated by being pressed against the mating member 581, the stopper 569 does not block the operation of the pin 562. Therefore, the trigger valve 546 is switched from the initial state to the operating state, and the striking unit 513 operates from the top dead center toward the bottom dead center.
- the stopper 569 stops at the initial position in contact with the pin 582.
- the stopper 569 blocks the operation of the pin 562 because the stopper 569 operates clockwise while the pin 562 returns from the operating position to the initial position. do not do.
- the principle is the same as that of the fifth embodiment of the driving machine 510.
- Control unit 577 stops supplying power to electromagnet 570A in step S10. Then, the tip of the stopper 569 that is in contact with the pin 582 is positioned within the operating range of the engaging portion 567. For this reason, when the push lever 516 is pressed against the mating member 581 after the elapsed time since the operation force is applied to the trigger 514 exceeds a predetermined time, the same principle as that of the fifth embodiment of the driving machine 10 is applied. The trigger valve 546 is maintained in the initial state.
- the control unit 577 when the control unit 577 performs the control example 3 of FIG. 29, the control unit 577 supplies power to the electromagnet 570A in step S42. Then, the stopper 569 operates from the initial position indicated by the two-dot chain line to the operating position indicated by the solid line, and stops at the operating position. In addition, when the control unit 577 stops supplying electric power to the electromagnet 570A in step S5 of FIG. 29, the stopper 569 stops at an initial position in contact with the pin 582 as shown by a two-dot chain line in FIG.
- the sixth embodiment of the driving machine 510 can obtain the same effects as those of the fifth embodiment of the driving machine 510.
- Embodiment 7 of the driving machine 510 is shown in FIG.
- a solenoid 583 as a restriction mechanism is provided in the trigger 514.
- the solenoid 583 has a function of preventing the operating force of the push lever 516, specifically, the operating force of the pin 562 from being transmitted to the plunger 547.
- the solenoid 583 includes a coil 584, a plunger 585, and a biasing member 586.
- the plunger 585 is made of a magnetic material and can move in the direction of the center line 5A4. Center line 5A4 intersects with center line 5A3.
- the biasing member 586 is a metal spring as an example.
- the plunger 585 is biased in a direction approaching the pin 562 by the biasing force of the biasing member 586, and stops at the initial position.
- the coil 584 generates a magnetic force when electric power is supplied, and urges the plunger 585 in a direction away from the pin 562, and the plunger 585 stops at the operating position.
- the seventh embodiment of the driving machine 10 has the control system of FIG.
- the solenoid 583 is an example of the actuator 580. Further, the arm 542 is biased counterclockwise in FIG. 31, and the trigger 514 is biased clockwise in FIG.
- the trigger 514 is supported by the main body 511 via the main shaft 592 and the support shaft 540 as shown in FIGS. 32 and 33.
- the main shaft 592 has a cylindrical shape, and the main shaft 592 can rotate around the center line 5A5.
- a mode selection member 573 is attached to the main shaft 592.
- the support shaft 540 is disposed around a center line 5A6 that is eccentric from the center line 5A5 of the main shaft 592. When the operator operates the mode selection member 573, the main shaft 592 rotates, and the main shaft 592 can be stopped at a position corresponding to the first mode or the second mode.
- the distance between the plunger 585 and the pin 562 is the same as the plunger 585 and the pin 562 when the operator selects the second mode. And longer than the distance.
- 32 and 35 show the position of the plunger 585 when the first mode is selected.
- 31, 33 and 34 show the position of the plunger 585 when the second mode is selected.
- the other structure in the seventh embodiment of the driving machine 510 is the same as the other structure in the fifth embodiment of the driving machine 510.
- the pin 562 is activated to activate the arm 542.
- the trigger valve 546 is switched from the initial state to the operating state. Therefore, the striking part 513 operates from the top dead center toward the bottom dead center.
- the trigger valve 546 returns from the operating state to the initial state.
- the plunger 585 does not contact the pin 62.
- control example 4 in FIG. 36 will be described. 36, the same process and the same determination as those in the control example 2 in FIG. 28 are denoted by the same step numbers as in FIG.
- step S2 When the operator applies operating force to the trigger 514, the control unit 577 determines Yes in step S2, and the control unit 577 starts measuring elapsed time in step S3 and supplies power to the solenoid 583. . For this reason, the tip 585A of the plunger 585 moves outside the operating range of the pin 562 and stops. Further, the arm 542 operates from an initial position indicated by a solid line in FIG. 31 to an intermediate position indicated by a two-dot chain line.
- step S4 the control unit 577 continues to supply power to the solenoid 583 in step S51.
- step S7 the striking unit 513 operates from the top dead center toward the bottom dead center.
- step S8 When the push lever 516 is returned to the initial position in step S8 and the push lever sensor 576 is turned off in step S8, the control unit 577 stops supplying power to the solenoid 583 in step S81, and performs the determination in step S9.
- control unit 577 determines No in step S4, it stops supplying power to the solenoid 583 in step S10. Further, when the operator releases the operation force on the trigger 514 in step S11, the control unit 577 resets the elapsed time in step S12, and ends the control example 4 in FIG. Therefore, when the push lever 516 is actuated when a predetermined time has elapsed from when the trigger sensor 575 is turned on by applying an operating force to the trigger 514, as shown by a two-dot chain line in FIG. 585A prevents pin 562 from operating. Therefore, the trigger valve 546 is maintained in the initial state.
- control unit 577 determines Yes in step S2
- the control unit 577 starts measuring elapsed time in step S31. Further, when the control unit 577 determines Yes in step S4, the control unit 577 starts supplying power to the solenoid 583 in step S42. In addition, the control unit 577 performs the processes of steps S6 to S9.
- step S4 When the controller 577 determines No in step S4, the worker releases the operating force for the trigger 514 in step S11. In addition, the control unit 577 resets the elapsed time in step S12, and ends the control example 5 in FIG. That is, the plunger 585 is maintained at the initial position as shown by a two-dot chain line in FIG.
- an urging member 563 is provided in the operating force transmission path between the push lever 516 and the pin 562.
- the biasing member 563 can absorb or mitigate part of the impact when the push lever 516 comes into contact with an object. Therefore, the load on the solenoid 583 can be reduced.
- FIG. 38 is a partial cross-sectional view of Embodiment 8 of the driving machine 510.
- the stopper 569 is attached to the main body 511 so as to be operable about the support shaft 588.
- the support shaft 588 that supports the stopper 569 is a separate member from the support shaft 540 that supports the trigger 514.
- the other configuration in FIG. 38 is the same as the other configuration shown in FIG.
- the control system shown in FIG. 24 can be used in the eighth embodiment shown in FIG. In the eighth embodiment of the driving machine 510, the control example of FIG. 28 or FIG. 29 can be performed.
- the driving machine 510 is an example of a driving machine.
- the trigger 514 is an example of an operation member, and the push lever 516 is an example of a contact member.
- the piston upper chamber 532 is an example of a pressure chamber.
- the hitting unit 513 is an example of a hitting unit.
- the trigger valve 546 is an example of a gas supply mechanism.
- the pin 562 is an example of a transmission member.
- the stopper 569 and the plunger 585 are examples of restricting members.
- Control unit 577, electromagnets 570 and 570A, and coil 584 are examples of a drive unit.
- the electromagnets 570 and 570A and the coil 584 are magnetic force generating elements.
- An example of the first position is that the tip of the stopper 569 is located within the operating range of the engaging portion 567.
- One example of the restriction control is that the control unit 577 supplies electric power to the electromagnets 570 and 570 ⁇ / b> A so that the tip of the stopper 569 is positioned within the operation range of the engagement unit 567. It is an example of the first position that the tip 585A of the plunger 585 is located within the operating range of the pin 562.
- An example of the restriction control is that the control unit 577 controls the solenoid 583 to position the tip 585A of the plunger 585 within the operating range of the pin 562.
- An example of the second position is that the tip of the stopper 569 is located outside the operating range of the engaging portion 567.
- One example of the release control is that the control unit 577 stops the supply of electric power to the electromagnets 570 and 570A and positions the tip of the stopper 569 outside the operating range of the engagement unit 567. It is an example of the second position that the tip 585A of the plunger 585 is located outside the operating range of the pin 562.
- An example of the release control is that the controller 577 controls the solenoid 583 to position the tip 585A of the plunger 585 outside the operating range of the pin 562.
- the main body 511 is an example of a housing.
- the support shaft 540 is an example of a support shaft.
- the support shaft 540 is an example of a first support shaft, and the support shaft 588 is an example of a second support shaft.
- the mode selection member 573 is an example of a mode selection member.
- the power switch 574 and the power source 578 are examples of a power supply unit.
- the nail 557 is an example of a stopper.
- the biasing member 563 is an example of a buffer member.
- the trigger sensor 575 is an example of a signal output unit.
- the push lever 516 When the trigger sensor 575 is on in the first state, the push lever 516 is pressed against the mating member 581 to switch the trigger sensor 575 from on to off, and the signal output from the trigger sensor 575 is the first signal. It is an example.
- the trigger 514 When the trigger 514 is stopped at the operating position and the trigger sensor 575 is turned on, the trigger 514 operates from the operating position toward the initial position, so that the signal output when the trigger sensor 575 is turned off is It is an example of 2 signals.
- the arm 542 is an example of an arm.
- the arm 542 pressing the contact 575A is an example in which the arm acts on the signal output unit.
- the operation member includes an element that operates within a predetermined range when an operation force is applied, in addition to an element that rotates within a range of a predetermined angle when an operation force is applied.
- the operation member includes a lever, a knob, a button, an arm, and the like.
- the contact member is an element that is operated by being pressed against a counterpart material, and includes a lever, an arm, a rod, a plunger, and the like.
- the control unit may be an electric component or a single electronic component, or may be a unit having a plurality of electrical components or a plurality of electronic components.
- the electrical component or electronic component includes a processor, a control circuit, and a module.
- the gas supply mechanism includes a switching valve that switches connection between passages and blocking between passages.
- the housing is an element that supports a component element of the driving machine or a member that is connected to the element.
- the housing includes a case, a bracket, and a shell.
- an inert gas such as nitrogen gas or a rare gas can be used instead of the compressed air. It is also possible to define the first mode as a single shot and the second mode as a continuous shot.
- the trigger sensor 575 outputs a signal corresponding to the state of the trigger 514.
- the state of the trigger 514 is the presence / absence of an operating force applied to the trigger 514, the operating angle of the trigger 514 with respect to the initial position, and the like.
- the push lever sensor 576 outputs a signal corresponding to the state of the cylinder 561 that is actuated by the actuation force of the push lever 516 being transmitted.
- the state of the cylinder 561 includes the presence / absence of an operating force transmitted to the cylinder 561, the operation amount with respect to the initial position of the cylinder 561, and the like.
- a contact sensor or a non-contact sensor can be used as the trigger sensor 575 and the push lever sensor 576.
- An example of a contact sensor is a tactile switch.
- An example of a non-contact sensor is an optical sensor, a magnetic sensor, or an infrared sensor. Signals from the trigger sensor 575 and the push lever sensor 576 are input to the control unit 577.
- the control unit 577 when the cylinder 561 is operated from the initial position toward the operation position by a predetermined amount in step S5 of FIGS.
- the power supply to the electromagnets 570 and 570A can be stopped.
- the predetermined amount is a value at which the stopper 569 does not block the operation of the pin 562 when the supply of current to the electromagnets 570 and 570A is stopped.
- the predetermined amount of data is a value obtained by performing a simulation and an experiment, and is stored in the control unit 577 in advance.
- a permanent magnet 572 can be provided on the push lever 516 and an electromagnet 570 can be provided on the stopper 569.
- an electromagnet 570A it is possible to provide the push lever 516 with a permanent magnet 572 and provide the stopper 569 with an electromagnet 570A.
- the arm may be any element that can be actuated and stopped so as to output a signal from the signal output unit in contact with or away from the signal output unit. That is, the lever is not limited to what is called an arm.
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Abstract
Description
Claims (15)
- 作業者が操作力を付加する操作部材と、
相手材に接触及び離反が可能であり、かつ、前記相手材に接触して作動する接触部材と、
前記接触部材の動作が伝達される第1状態と、前記接触部材の動作の伝達が規制される 第2状態とを切替可能な切替機構と、止具を打撃する打撃部と、
前記作業者が操作可能であり、かつ、前記打撃部の駆動を制御するモード選択部材とを有し、前記モード選択部材は、
前記接触部材を作動させた状態で前記作業者が前記操作部材を操作する第1モードと、
前記接触部材の作動と前記操作部材の操作の順序に依らず、前記接触部材の作動と前記操作部材の操作に基づく第2モードと、を有し、
前記第2モードが選択され、前記作業者が前記操作部材を操作し、かつ、前記接触部材 が前記相手材から離反している状態が所定時間以内であると、前記切替機構に電力が供 給されて前記切替機構が前記第1状態となり、
前記第2モードが選択され、前記作業者が前記操作部材を操作し、かつ、前記接触部材が前記相手材から離反している状態が所定時間を超えると、前記切替機構に対する電力の供給が停止されて前記切替機構が前記第2状態となる、打込機。 - 前記第1モードが選択された場合に、前記モード選択部材の操作力によって前記切替機構が前記第1状態となり、かつ、前記切替機構に対する電力の供給が停止される、請求項1に記載の打込機。
- 前記モード選択部材には、前記第1モードに対応する第1操作位置と、前記第2モードに対応する第2操作位置が設けられている請求項1記載の打込機。
- 圧縮性気体が供給及び排出される圧力室、前記圧力室に前記圧縮性気体が供給されると作動する前記打撃部と、
前記圧力室に前記圧縮性気体を供給させる供給状態と、前記圧力室から前記圧縮性気体を排出させる排出状態とを備えた駆動部と、を有し、
前記駆動部は、
前記圧力室に前記圧縮性気体を供給する供給口と、
前記圧力室から前記圧縮性気体を排出する排出口と、
前記供給口及び前記排出口をそれぞれ開閉するバルブと、を有し、
前記供給状態は、前記バルブが前記供給口を開き、かつ、前記排出口を閉じた状態であり、
前記排出状態は、前記バルブが前記供給口を閉じ、かつ、前記排出口を開いた状態である、請求項1乃至3の何れか1項記載の打込機。 - 前記切替機構に電力を供給可能な電源と、
前記切替機構に対する電力を供給及び停止を制御する制御部と、
が設けられている、請求項1乃至4の何れか1項記載の打込機。 - 前記切替機構は、前記電力が供給及び停止される解除機構と、前記解除機構に対して動力伝達可能に接続された規制部材と、前記接触部材は、前記相手材に接触すると所定の作動範囲で作動し、前記第1状態は、前記規制部材が前記作動範囲外で停止することであり、前記第2状態は、前記規制部材が前記作動範囲内で停止することにより前記接触部材の作動を阻止することである、請求項5記載の打込機。
- 前記規制部材を前記作動範囲内で停止させる保持機構が設けられ、前記第1状態は、前記解除機構に前記電力が供給されて前記規制部材が前記作動範囲外で停止することであり、
前記第2状態は、前記解除機構に対する前記電力の供給が停止されて前記規制部材が前記作動範囲内で停止することである、請求項6記載の打込機。 - 前記解除機構に対して前記電力を供給及び停止する制御部が設けられ、前記制御部は、前記作業者が前記モード選択部材を操作して前記第2モードを選択し、かつ、前記操作部材を操作した時点から、前記解除機構に前記電力を供給する、請求項7記載の打込機。
- 前記接触部材に設けられている伝達部材の作動範囲の内外で移動可能であり、かつ、前記第2状態では、前記操作部材に操作力が付加されて前記伝達部材の作動範囲内に位置する第1位置と、前記第1状態では、前記操作部材に対する操作力が解除されて前記伝達部材の作動範囲外に位置する第2位置と、を有する規制部材と、
前記操作部材に操作力が付加されている場合に、前記規制部材の状態を前記第1位置と前記第2位置とで切り替え可能な駆動部と、が設けられ、前記第2モードが選択されている場合には、
前記駆動部によって、前記操作部材に操作力を付加されて前記規制部材が前記第1位置である場合に、前記操作部材に操作力を付加した時点から所定時間内に前記接触部材が作動されると、前記規制部材を前記第2位置にする解除制御を行い前記接触部材の動作可能な状態にし、
前記操作部材に操作力が付加されて前記規制部材が前記第1位置である場合に、前記操作部材に操作力を付加した時点から、前記接触部材が作動せずに前記所定時間を超えると、前記規制部材を前記第1位置に維持する規制制御を行い、前記接触部材を動作不能な状態にする、請求項1または2記載の打込機。 - 前記規制部材または前記駆動部の少なくとも一方は、電力が供給されて磁力を形成する磁力形成要素を含み、前記駆動部は、前記磁力形成要素に対する電力の供給と、電力の停止とを制御することにより、前記規制部材の状態を前記第1位置と前記第2位置とで切り替える、請求項12記載の打込機。
- 前記操作部材を取り付けたハウジングと、前記ハウジングに設けた支持軸と、を有し、
前記支持軸は、前記操作部材を作動可能に支持し、かつ、前記規制部材を作動可能に支持する、請求項9または10記載の打込機。 - 前記操作部材を回動可能に支持する第1支持軸と、前記規制部材を作動可能に支持する第2支持軸とが、が別々に設けられている、請求項9または10記載の打込機。
- 前記駆動部は、電力が供給されて起動し、
前記作業者が前記操作部材に操作力を付加し、かつ、前記接触部材を前記相手材に接触して作動させるモードは、
前記接触部材を前記相手材に接触させた状態で、前記操作部材に操作力を付加する第1モードと、
前記操作部材に操作力を付加している状態で、前記接触部材を前記相手材に接触させる第2モードと、があり、
前記駆動部に対する電力の供給及び停止を行う電力供給部と、
が設けられ、
前記電力供給部は、前記作業者が前記モード選択部材を操作して前記第1モードを選択すると、前記駆動部に対する電力の供給を停止し、前記作業者が前記モード選択部材を操作して前記第2モードを選択すると、前記駆動部に電力を供給する、請求項9乃至12の何れか1項記載の打込機。 - 前記操作部材に操作力が付加されている状態で前記接触部材が作動すると第1信号を出力し、前記操作部材に対する操作力が解除されると第2信号を出力する信号出力部が設けられ、
前記駆動部は、
前記操作部材に操作力を付加した時点から経過時間の計測を開始する制御と、
前記信号出力部から前記第1信号または前記第2信号の少なくとも一方が出力されると、計測した前記経過時間をリセットする制御と、を行う、請求項9乃至13の何れか1項記載の打込機。 - 前記操作部材は、前記接触部材との協働により前記気体供給機構に作動力を伝達するアームを備え、
前記アームは、
前記操作部材に操作力が付加され、かつ、前記接触部材が前記相手材から離反している状態で前記信号出力部に作用する第1の状態と、
前記操作部材に操作力が付加されている状態で前記接触部材が前記相手材に接触して作動するか、前記操作部材に操作力が付加されている状態で前記操作部材の操作力を解除すると前記信号出力部に作用する第2の状態と、を有し、
前記第1信号及び前記第2信号は、前記アームが前記第2の状態である場合に前記信号出力部から出力される、請求項14に記載の打込機。
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EP19775940.0A EP3778126A4 (en) | 2018-03-29 | 2019-02-22 | Driver machine |
JP2020510443A JP6969671B2 (ja) | 2018-03-29 | 2019-02-22 | 打込機 |
US17/040,177 US20210122018A1 (en) | 2018-03-29 | 2019-02-22 | Driving tool |
CN201980022915.3A CN111936272A (zh) | 2018-03-29 | 2019-02-22 | 打入机 |
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Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH08276375A (ja) * | 1995-04-05 | 1996-10-22 | Max Co Ltd | 釘打ち機のトリガ装置 |
JP2012115922A (ja) | 2010-11-30 | 2012-06-21 | Hitachi Koki Co Ltd | 打込機 |
JP2016179526A (ja) * | 2015-03-24 | 2016-10-13 | 株式会社マキタ | 打ち込み工具 |
JP2018144123A (ja) * | 2017-03-01 | 2018-09-20 | 株式会社マキタ | 打ち込み工具 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
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US8800835B2 (en) * | 2008-07-17 | 2014-08-12 | Stanley Fastening Systems, Lp | Fastener driving device with mode selector and trigger interlock |
TWI551405B (zh) * | 2011-12-28 | 2016-10-01 | Makita Corp | Pneumatic tools |
US20140263535A1 (en) * | 2013-03-12 | 2014-09-18 | Techtronic Power Tools Technology Limited | Direct current fastening device and related control methods |
JP6665694B2 (ja) * | 2016-06-02 | 2020-03-13 | 工機ホールディングス株式会社 | 打込機 |
-
2019
- 2019-02-22 EP EP19775940.0A patent/EP3778126A4/en not_active Withdrawn
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- 2019-02-22 CN CN201980022915.3A patent/CN111936272A/zh active Pending
- 2019-02-22 US US17/040,177 patent/US20210122018A1/en not_active Abandoned
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Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH08276375A (ja) * | 1995-04-05 | 1996-10-22 | Max Co Ltd | 釘打ち機のトリガ装置 |
JP2012115922A (ja) | 2010-11-30 | 2012-06-21 | Hitachi Koki Co Ltd | 打込機 |
JP2016179526A (ja) * | 2015-03-24 | 2016-10-13 | 株式会社マキタ | 打ち込み工具 |
JP2018144123A (ja) * | 2017-03-01 | 2018-09-20 | 株式会社マキタ | 打ち込み工具 |
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Title |
---|
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JPWO2019187847A1 (ja) | 2020-09-24 |
CN111936272A (zh) | 2020-11-13 |
US20210122018A1 (en) | 2021-04-29 |
JP6969671B2 (ja) | 2021-11-24 |
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