JP5401105B2 - Motor built-in roller - Google Patents

Description

  The present invention relates to a motor built-in roller that is used in a conveyor device or the like and incorporates a motor.

  As a roller conveyor provided with a clutch mechanism for transmitting a rotational driving force to the roller main body, for example, a plurality of rollers provided between a pair of conveyor frames are driven by a separate rotational driving means, and the object to be conveyed There is a roller conveyor that is driven and conveyed. This roller is composed of a roller body rotatably supported by a fixed roller shaft that conveys the object to be conveyed, and a driving force passive body that receives a rotational driving force by a rotational driving means, and the driving force passive body is rotationally driven. Only when a force is received, driving force transmitting means for transmitting the rotational driving force to the roller body is provided (for example, Patent Document 1).

  Also, in the field of electric shutters, for example, a motor drive unit that drives a winding drum to move a shutter slat up and down, and a constantly connected type that is provided in a motor drive system and is not connected under operation. A clutch plate, a spring for applying a winding driving force to the winding drum, winding the shutter slat when the clutch device is not connected, a clutch connecting hole, and a clutch plate that is driven by the motor driving unit, A sliding member provided with a clutch pin that is inserted into a case member that is integrally attached to the take-up drum so as to be freely inserted into the clutch coupling hole, and the sliding member is pushed and moved forward to move the clutch pin. And a clutch device made of a spring member that engages the clutch by engaging the clutch connecting hole, and the sliding member is moved backward to disengage the clutch pin from the clutch connecting hole. The winding device for an electric shutter and an operation means for the known (e.g., Patent Document 2).

JP 2003-292139 A JP 2002-138777 A

  However, in the roller conveyor described in Patent Document 1, when the driving force from the transmission rope is cut off due to a power failure or the like, the roller conveyor is free to rotate in any direction. Then, when the driving force from the transmission rope is suddenly cut off due to a power failure or the like, there is a problem that the object to be transported arranged on the roller conveyor suddenly falls downward.

  Further, in the technique described in Patent Document 2, even when the driving force is cut off due to a power failure or the like, the clutch device is in a connected state, and thus the problem as in Patent Document 1 does not occur. In order to change from a connected state to a non-connected state, a cam pin, a turning lever, a spring, a base plate, and a support shaft are required, and a work process such as caulking is required at the time of assembly. In addition, it is necessary to attach these assemblies to the cover, which increases the number of assembly steps and the work load.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a motor built-in roller that can be easily assembled and can simplify the work process.

  In order to solve the above problems and achieve the above object, a first aspect of the present invention includes a clutch plate provided in a driving drum and connected to a rotating shaft driven by a motor, and a driving drum. A cover fixed to the cover, an insertion hole provided on the cover and having a cam portion in which a plurality of insertion hole ribs and insertion hole cam grooves are formed on a peripheral surface, a shaft inserted through the insertion hole, A sliding plate that is connected to the shaft and can be connected to the clutch plate by moving the shaft, a return spring that presses the sliding plate and biases the sliding plate in a direction to connect the clutch plate, and sliding Operating means for moving the plate to disengage the sliding plate from the clutch plate. The operating means is provided on the outer periphery of the shaft, and the rotor cam teeth are formed at the end on the motor side. Rotor with a rotor rib formed on the outer peripheral surface The bush is provided on the outer periphery of the shaft, the bush rib is formed on the outer peripheral surface to be fitted into the insertion hole cam groove, and the bush cam tooth is formed on the end opposite to the motor to be engaged with the rotor cam tooth. When the operating means is operated from the state where the sliding plate is connected to the clutch plate, the rotor rotates, the rotor rib comes out of the insertion hole cam groove, and the sliding plate becomes the clutch. It is in a non-connected state with the plate, and the non-connected state can be maintained.

  According to the present invention, since the return spring that biases the sliding plate in the direction to connect the sliding plate to the clutch plate is provided, the sliding plate is connected to the clutch plate in the event of a power failure, and the operating means is operated. Since the rotor rotates and the rotor rib comes out of the insertion hole cam groove, the sliding plate is disconnected from the clutch plate, so that it is easily disconnected by operating the operating means even during a power failure. be able to. Further, in the present invention, since the cover can be assembled by fitting the shaft to the bush and the rotor, the work process such as caulking becomes unnecessary, and the work process can be simplified.

  According to a second aspect of the present invention, there is provided a motor built-in roller according to the first aspect, wherein the operating member is operated from a state in which the sliding plate is not connected to the clutch plate, thereby the rotor. And the rotor rib is fitted in the insertion hole cam groove so that the sliding plate is connected to the clutch plate, and the connected state can be maintained.

  According to the present invention, when the operating means is operated, the rotor rotates, the rotor rib is fitted in the insertion hole cam groove, and the sliding plate is connected to the clutch plate. can do.

  According to a third aspect of the present invention, there is provided a motor built-in roller according to the first or second aspect, wherein the cam portion has an insertion hole rib and an insertion hole cam groove on the circumferential surface of the insertion hole. It is formed.

  According to the present invention, since the insertion hole rib and the insertion hole cam groove are formed on the peripheral surface of the insertion hole, the operation means is operated from the state where the sliding plate is connected to the clutch plate. The sliding plate is in a disconnected state with the clutch plate, and the operating means is operated from the disconnected state, whereby the sliding plate can be connected with the clutch plate.

  According to the present invention, the assembly can be performed by fitting the cover to the shaft attached to the bush, the rotor, and the work process such as caulking is not required, and the work process can be simplified.

It is a figure which shows the conveyor apparatus using the roller with a built-in motor in one Embodiment of this invention. It is a figure which shows the XYZ cross section of FIG. It is a fragmentary sectional view of the clutch part of the roller with a built-in motor shown in FIG. It is a figure which shows the AA cross section of FIG. It is a figure which shows the BB cross section of FIG. It is a figure which shows CC cross section of FIG. (A) It is a front view of the cover used for the motor built-in roller in one Embodiment of this invention. (B) It is a figure which shows the ABC cross section of Fig.7 (a). It is an expanded view of the penetration hole of the cover used for the motor built-in roller in one Embodiment of this invention. (A) It is a front view of the rotor used for the motor built-in roller in one Embodiment of this invention. (B) It is a figure which shows the LMN cross section of Fig.9 (a). It is an expanded sectional view of a rotor used for a roller with a built-in motor in one embodiment of the present invention. (A) It is a front view of the bush used for the motor built-in roller in one Embodiment of this invention. (B) It is a figure which shows the STU cross section of Fig.11 (a). It is an expanded sectional view of a bush used for a roller with a built-in motor in one embodiment of the present invention. It is an assembly block diagram of the clutch part of the roller with a built-in motor in one Embodiment of this invention. It is an operation | movement figure of the operation means of the roller with a built-in motor in one Embodiment of this invention. It is a figure which shows the state with which the sliding board of the roller with a built-in motor in one Embodiment of this invention is not connected with a clutch board.

  An embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a view showing a conveyor device using a roller with a built-in motor according to an embodiment of the present invention. In addition, although this embodiment demonstrates what uses the roller with a built-in motor for a conveyor apparatus, you may use not only this but a roller with a built-in motor for things other than a conveyor apparatus.

  As shown in FIG. 1, the conveyor device 1 includes a motor built-in roller 2 and a frame 3. The motor built-in roller 2 is fixed to the frame 3 in a state orthogonal to the article conveyance direction. An operation handle 4 is attached inside the motor built-in roller 2. Details of the operation handle 4 will be described later.

  Next, the motor built-in roller 2 will be described in detail with reference to FIGS. 2 is a cross-sectional view taken along the line XYZ of FIG. 1, FIG. 3 is a partial cross-sectional view of the clutch portion of the motor built-in roller shown in FIG. 2, and FIG. 5 is a diagram showing a cross section, FIG. 5 is a diagram showing a BB cross section of FIG. 3, and FIG. 6 is a diagram showing a CC cross section of FIG.

  As shown in FIG. 2, the motor built-in roller 2 is connected concentrically to the drive drum 5 on which the object to be conveyed is placed, the motor unit 6 mounted concentrically on the drive drum 5, and the motor 6 unit. A clutch portion 7 and a support wheel portion 8.

  The motor unit 6 includes a motor 9, a rotary shaft 10 driven by the motor 9, and a locking shaft 11 that locks the motor 9 to the frame 3. The motor 9 is locked to the frame 3 by the locking shaft 11. A bearing A12 is provided between the drive drum 5 and the motor 9. Then, the rotation of the rotating shaft 10 of the motor unit 6 is transmitted to the clutch unit 7 so that the driving drum 5 can rotate.

  The clutch unit 7 transmits or blocks the rotation of the motor 9 to the drive drum 5. As shown in FIGS. 3 to 6, the clutch portion 7 is provided on a clutch plate 13 connected to a rotary shaft 10 driven by a motor 9 and an outer peripheral portion of the clutch plate 13, and is attached to the drive drum 5 by a pin A <b> 14. A fixed case 15, an insertion hole 16, a cover 18 fixed to the case 15 with a bolt 17, a shaft 19 inserted into the insertion hole 16, and the shaft 19 are connected. A sliding plate 22 provided with a claw portion 21 that can be fitted into the clutch coupling hole 20 is provided. The cover 18 is fixed to the drive drum 5, and the shaft 19 is integrally formed with a locking portion 23 for locking the operation handle 4, and the shaft penetrating in the sliding plate 22 is formed. In the state inserted in the hole 24, it is stopped by a retaining ring 25. In this way, the sliding plate 22 can be connected to the clutch plate 13 by the movement of the shaft 19. Further, the clutch portion 7 has a return spring 26 that presses the sliding plate 22 and biases the claw portion 21 in a direction in which the claw portion 21 is fitted into the clutch coupling hole 20.

  Further, the clutch portion 7 is provided with operating means 27 for moving the sliding plate 22 so as to disconnect the sliding plate 22 from the clutch plate 13. The operating means 27 is provided on the outer periphery of the shaft 19 and on the inner surface side of the insertion hole 16, the rotor cam teeth 28 are formed on the end circumference on the motor 9 side, and the rotor rib 29 is formed on the outer peripheral surface. The rotor 30 (see FIG. 9) and the outer periphery of the shaft 19 are provided with bush ribs 31 formed on the outer peripheral surface, and engage with the rotor cam teeth 28 on the circumference of the end opposite to the motor 9. A bush 33 (see FIG. 11) is formed with bush cam teeth 32 to be formed. Details of the operation means 27 will be described later.

  The drive drum 5 has a hollow cylindrical shape, and a case 15 having an outer diameter substantially the same as the inner diameter of the drive drum 5 is disposed inside the drive drum 5 (see FIGS. 3 and 6). The drive drum 5 and the case 15 are integrated by a pin A14 (see FIG. 3). Further, the cover 18 is integrated with the case 15 by four bolts 17 (see FIGS. 3 and 6). A shaft 19 formed integrally with the locking portion 23 is inserted through the insertion hole 16 provided in the cover 18.

  The support wheel portion 8 includes a hollow cylindrical tubular member 34 provided on the outer circumferential direction side of the operation handle 4, a bearing B 35 disposed on the outer circumferential surface of the tubular member 34, the bearing B 35 and the drive drum. 5 (see FIG. 2). The cylindrical member 34 is fixed to the frame 3, and the bearing support member 36 is fixed to the drive drum 5 by a pin B37. As a result, the bearing support member 36 rotates with the rotation of the drive drum 5.

  Next, the structure of the cover 18 used for the motor built-in roller 2 will be described with reference to FIGS. 7 and 8. Fig.7 (a) is a front view of the cover used for the motor built-in roller in one Embodiment of this invention, FIG.7 (b) is a figure which shows the EF-G cross section of Fig.7 (a). FIG. 8 is a developed view of the cover insertion hole used in the motor-equipped roller according to the embodiment of the present invention.

  The cover 18 has a substantially quadrangular outer shape, and has bolt holes 38 in the vicinity of the four corners (see FIG. 7A). Further, the cover 18 is provided with a projection 39 for limiting the movement of the clutch plate 13 in the rotation axis direction (see FIG. 7B). The protrusion 39 is in contact with the clutch plate 13 through the protrusion through hole 40 provided in the sliding plate 22 to restrict the movement of the clutch plate 13 in the rotation axis direction (see FIG. 3). .

  In this way, the projections 39 for restricting the movement of the clutch plate 13 in the direction of the rotary shaft 10 are provided on the cover 18, and the projections 39 are brought into contact with the clutch plate 13. By utilizing this, the movement of the clutch plate 13 in the direction of the rotation shaft 10 can be limited. As a result, the number of parts can be reduced and the number of assembling steps can be simplified. In addition, since the projection through-hole 40 that allows the projection 39 to penetrate the sliding plate 22 is provided, the projection 39 provided on the cover 18 does not have a complicated shape, and the projection 39 is formed in a simple shape. Can do. As a result, the manufacturing process can be simplified.

  Further, the insertion hole 16 of the cover 18 is formed with insertion hole ribs 41 and insertion hole cam grooves 42 radially on the inner peripheral surface (see FIG. 7A). A holding groove 43 having substantially the same shape (triangular shape) as the top of the rotor rib 29 is provided on the top (tip) of the insertion hole rib 41 (see FIG. 8). Thereby, the rotor rib 29 can be held by the holding groove 43 of the insertion hole rib 41. The insertion hole rib 41 and the insertion hole cam groove 42 constitute a cam portion.

  Next, the structure of the rotor 30 used for the motor built-in roller 2 will be described with reference to FIGS. 9 and 10. Fig.9 (a) is a front view of the rotor used for the motor built-in roller in one Embodiment of this invention, FIG.9 (b) is a figure which shows the LM-N cross section of Fig.9 (a). FIG. 10 is a developed cross-sectional view of the rotor used in the motor built-in roller according to the embodiment of the present invention. The developed sectional view of the rotor 30 in FIG. 10 shows a section on the outer peripheral surface of the rotor cam tooth 28.

  The rotor 30 has a hollow cylindrical shape, rotor cam teeth 28 are formed on one end circumference, and rotor ribs 29 are formed on the outer circumferential surface at equal circumferential intervals. The rotor cam teeth 28 are formed in the same mountain shape near the circumference. The rotor rib 29 has a top half (tip portion) that is vertically half of the mountain shape of the rotor cam teeth 28, and one rotor rib 29 is provided for every two peaks of the rotor cam teeth 28. Are formed (see FIG. 10).

  Next, the structure of the bush 33 used for the motor built-in roller 2 will be described with reference to FIGS. 11 and 12. Fig.11 (a) is a front view of the bush used for the motor built-in roller in one Embodiment of this invention, FIG.11 (b) is a figure which shows the STU cross section of Fig.11 (a). is there. FIG. 12 is a developed cross-sectional view of a bush used for the motor built-in roller according to the embodiment of the present invention. The developed sectional view of the rotor 30 in FIG. 12 shows a section on the outer peripheral surface of the bush cam teeth 32.

  The bush 33 has a hollow cylindrical shape, bush cam teeth 32 are formed on one end circumference, and bush ribs 31 are formed on the outer peripheral surface. The bush ribs 31 are arranged at equal intervals around the circumference, and the bush cam teeth 32 have the same angle shape near the circumference. The bush rib 31 has a top portion (tip portion) of an upper half shape of a mountain shape of the bush cam teeth 32, and one bush rib 31 is formed for every two peaks of the bush cam teeth 32 ( (See FIG. 12).

  Next, the assembly method of the motor built-in roller 2 of this invention is demonstrated. FIG. 13 is an assembly configuration diagram of the clutch portion of the motor built-in roller according to the embodiment of the present invention.

As shown in FIG. 13, first, the slide washer 44, the wave washer 45, the slide washer 44, the rotor 30, and the bush 33 are inserted into the shaft 19 in this order. Insert the shaft 19 into the shaft. Then, a return spring 26 is sandwiched between the cover 18 and the sliding plate 22, and the shaft 19 is inserted into the shaft through hole 24 of the sliding plate 22, and the shaft 19 is fixed by a retaining ring 25 after the insertion. In this state, the clutch plate 13 is attached, and the attached clutch plate 13 is inserted into the clutch plate insertion hole 46 of the case 15, and the four bolts 17 are passed through the four bolt holes 38 of the cover 18. The clutch portion 7 can be assembled by screwing the bolts 17 into the four bolt holes 47.

  Thus, since it can assemble by fitting the cover 18 in the shaft 19 to which the bush 33 and the rotor 30 are attached, a work process such as caulking is not required, and the work process can be simplified.

  Next, an operation method of the motor built-in roller 2 will be described with reference to FIGS. 14 and 15. FIG. 14 is an operation diagram of the operating means of the motor built-in roller in one embodiment of the present invention, and FIG. 15 is a state where the sliding plate and the clutch plate of the motor built-in roller in one embodiment of the present invention are not connected. FIG. This operation method is the same as the operation method of the Kern type knock mechanism known as a knock type hall pen, and the contents thereof will be described.

  The state in which the sliding plate 22 of the clutch portion 7 is connected to the clutch plate 13 (see FIG. 3), that is, the claw portion 21 provided on the sliding plate 22 is fitted into the clutch connection hole 20 provided on the clutch plate 13. In this state, the rotor rib 29 is fitted in the insertion hole cam groove 42, and the shaft 19 (the locking portion 23 of the shaft 19) is in the forward position (see FIG. 14A). When the locking portion 23 of the shaft 19 is pulled by the pulling force from the operation handle 4 from this state, the rotor rib 29 is removed (escapes) from the insertion hole cam groove 42. When the rotor rib 29 is removed from the insertion hole cam groove 42, the rotor 30 is slightly rotated, and the rotor rib 29 is separated from the end of the top portion (tip portion) of the insertion hole rib 41. When the pulling force from the operation handle 4 is released in this state, the locking portion 23 of the shaft 19 is moved by the urging force of the return spring 26, and the top portion (tip portion) of the rotor rib 29 is the top portion of the insertion hole rib 41 ( Rotating while sliding on the inclined surface of the front end portion, the position of the top portion (front end portion) of the rotor rib 29 is positioned so as to contact the holding groove 43 of the insertion hole rib 41, and the rotor 30 is set to the retracted position. (See FIG. 14B). In this state, the sliding plate 22 of the clutch portion 7 is not connected to the clutch plate 13 (see FIG. 15).

  Thus, the state in which the sliding plate 22 of the clutch portion 7 is not coupled to the clutch plate 13 (see FIG. 15), that is, the clutch coupling in which the claw portion 21 provided on the sliding plate 22 is provided on the clutch plate 13. In a state where it is not fitted into the hole 20, the rotor rib 29 is not fitted into the insertion hole cam groove 42, and the shaft 19 (locking portion 23) is in the retracted position (see FIG. 14B). . From this state, when the locking portion 23 of the shaft 19 is pulled by the pulling force from the operation handle 4, the top portion (tip portion) of the rotor rib 29 is detached from the holding groove 43 of the insertion hole rib 41. When the pulling force from the operation handle 4 is released in this state, the locking portion 23 of the shaft 19 is moved by the urging force of the return spring 26, and the top portion (tip portion) of the rotor rib 29 is the top portion of the insertion hole rib 41 ( The rotor rib 29 is fitted into the insertion hole cam groove 42 while sliding on the inclined surface of the tip portion, and the rotor 30 is set at the forward position (see FIG. 3). In this state, the sliding plate 22 of the clutch portion 7 is connected to the clutch plate 13. In this way, the rotor 30 is rotated by the forward retraction of the shaft 19 and is positioned at the advance / retreat position.

  As described above, since the return spring 26 that biases the sliding plate 22 in the direction to connect the sliding plate 22 to the clutch plate 13 is provided, the sliding plate 22 is connected to the clutch plate 13 in the event of a power failure. Thus, for example, even if the conveyor device 1 arranged at an oblique inclination is suddenly cut off due to a power failure or the like, the motor built-in roller 2 cannot freely rotate, and the conveyed device arranged on the conveyor device 1 There is no sudden drop of objects. Further, even when the motor built-in roller 2 cannot rotate freely due to a power failure or the like, by pulling the operation handle 4 and operating the operation means 27 described above, the rotor 30 is rotated and the rotor rib 29 is inserted into the insertion hole cam groove 42. Thus, the sliding plate 22 is disconnected from the clutch plate 13, so that it can be easily disconnected even during a power failure.

DESCRIPTION OF SYMBOLS 1 Conveyor apparatus 2 Motor built-in roller 3 Frame 4 Operation handle 5 Drive drum 6 Motor part 7 Clutch part 8 Support wheel part 9 Motor 10 Rotating shaft 11 Locking shaft 12 Bearing A
13 Clutch plate 14 Pin A
15 Case 16 Insertion hole 17 Bolt 18 Cover 19 Shaft 20 Clutch connection hole 21 Claw part 22 Sliding plate 23 Locking part 24 Shaft through hole 25 Retaining ring 26 Return spring 27 Operating means 28 Rotor cam teeth 29 Rotor rib 30 Rotation Child 31 Bushing rib 32 Bushing cam teeth 33 Bushing 34 Cylindrical member 35 Bearing B
36 Bearing support member 37 Pin B
38 Bolt hole 39 Projection 40 Projection through-hole 41 Insertion hole rib 42 Insertion hole cam groove 43 Holding groove 44 Slide washer 45 Wave washer 46 Clutch plate insertion hole 47 Bolt hole

Claims (3)

Used conveyor equipment, the motorized roller incorporating a motor,
A clutch plate provided in a driving drum and connected to a rotating shaft driven by the motor;
A cover fixed to the drive drum;
An insertion hole provided in the cover and having a cam portion in which a plurality of insertion hole ribs and a plurality of insertion hole cam grooves are formed on the peripheral surface;
A shaft inserted through the insertion hole;
A sliding plate connected to the shaft and provided to be connectable to the clutch plate by movement of the shaft;
A return spring that presses the sliding plate and biases the sliding plate in a direction to connect the sliding plate to the clutch plate;
Operating means for moving the sliding plate to disengage the sliding plate from the clutch plate;
The operation means includes
A rotor provided on the outer periphery of the shaft, with rotor cam teeth formed at the end on the motor side, and rotor ribs formed on the outer peripheral surface;
Bushing ribs are formed on the outer circumference of the shaft, and are fitted on the outer circumferential surface of the insertion hole cam groove. Bush cam teeth are formed on the opposite end of the motor to engage with the rotor cam teeth. A bush, and
When the operating means is operated from a state where the sliding plate is connected to the clutch plate, the rotor rotates and the rotor rib comes out of the insertion hole cam groove, and the sliding plate A roller with a built-in motor which is in a non-coupled state with the clutch plate and is capable of maintaining the non-coupled state.
When the operating means is operated from a state in which the sliding plate is not connected to the clutch plate, the rotor is rotated, and the rotor rib is fitted into the insertion hole cam groove. The roller with a built-in motor according to claim 1, wherein the roller is in a connected state with the clutch plate, and the connected state can be maintained. The motor with built-in motor according to claim 1 or 2, wherein the cam portion is formed with the insertion hole rib and the insertion hole cam groove on the peripheral surface of the insertion hole.

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