JP4575849B2 - Shift switch - Google Patents

Description

  The present invention relates to a shift switch that is built in an automatic transmission with a manual shift mode of a vehicle and detects an operation for switching from an automatic shift mode to a manual shift mode and an operation for switching between an upshift and a downshift in the manual shift mode.

  2. Description of the Related Art In recent years, an automatic transmission with a manual shift mode capable of manually performing a shift gear switching operation in accordance with a traveling condition is installed in a vehicle such as a sports type or a luxury sedan. Such an automatic transmission has a switch for detecting that the shift lever operated by the driver is moved from the automatic gate to the manual gate, and a switch for detecting that the manual gate is switched between upshift and downshift. It is built in (for example, see Patent Document 1 below).

JP 2001-105925 A

  A shift switch device for a vehicle disclosed in Patent Document 1 includes a select switch that detects whether a shift lever is in a first shift path (automatic gate) or a third shift path (manual gate), and an upshift. And an up / down shift detection switch for detecting down. The select switch includes a first movable plate integrated with the operating rod, a first contact spring mounted on the first movable plate, a first movable contact plate biased by the first contact spring, a return spring, It consists of fixed contacts. The up / down shift detection switch includes a second movable plate, a second contact spring installed on the second movable plate, a second movable contact plate biased by the second contact spring, and a second movable contact plate. The fixed contact is always in contact, the fixed contact for upshifting, and the fixed contact for downshifting.

  However, according to the conventional shift switch device as described above, the select switch and the up / down shift detection switch are configured separately, and the individual components constituting the select switch and the individual components constituting the up / down shift detection switch are configured. Since no common parts are used, there are problems that the number of parts is large, the assembling property of the switch is deteriorated, and the installation work in the automatic transmission is complicated.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a shift that can improve the assembly of the switch and simplify the installation work in the automatic transmission. To provide a switch.

  In order to achieve the above object, the shift switch of the present invention is incorporated in an automatic transmission with a manual shift mode, and the shift lever is moved from the automatic gate to the manual gate to switch from the automatic shift mode to the manual shift mode. A shift switch that integrates a mode changeover switch section for detecting a shift shift switch section for detecting a downshift or upshift operation by moving a shift lever in a manual gate, the mode changeover switch The unit includes a mode input terminal arranged vertically in the switch case, a first ground input terminal arranged apart from the mode input terminal, and rotatably supported in the switch case. A first lever protruding from the side; A first contact spring having a common contact mounted on the first lever and constantly contacting the mode input terminal, and an input contact contacting the first ground input terminal in conjunction with the rotation of the first lever. And an operating body that is slidably supported along the side surface of the switch case and is operated by being pushed by the shift lever at the time of switching operation to the manual shift mode, and at this time, the first lever is pushed to rotate. The shift changeover switch unit includes a downshift input terminal disposed horizontally in the switch case, a second ground input terminal spaced apart from the downshift input terminal, and the downshift input. Upshift input terminal arranged at a symmetrical position of the terminal and third ground input arranged at a symmetrical position of the second ground input terminal A second lever that is rotatably supported in the switch case and protrudes from the upper surface of the switch case; a common contact that is attached to the second lever and is in constant contact with the downshift input terminal; and A second contact spring piece having an input contact that contacts the second ground input terminal in conjunction with the rotation of the second lever, and is rotatably supported in the switch case and protrudes from the upper surface of the switch case A third lever, a common contact mounted on the third lever and constantly contacting the upshift input terminal, and an input contact contacting the third ground input terminal in conjunction with the rotation of the third lever And a third contact spring piece that is slidably supported along the upper surface of the switch case, and that is used for the downshift or upshift operation. And an operating body that is operated by being pushed by the bar, and at this time pushes one of the second lever or the third lever to rotate it, and the first lever, the second lever, and the third lever are shared. The first contact spring piece, the second contact spring piece, and the third contact spring piece are made of a common part.

  Here, various configurations of the operation body of the mode changeover switch unit are conceivable. For example, a knob having a pressing portion that is pressed by the shift lever and the knob is biased in a direction opposite to the pressing direction of the shift lever. The structure provided with the biasing means to do is employable. In this case, for example, a coil spring can be used as the urging means, and the coil spring may be inserted into a mounting hole provided at the lower end of the knob and mounted in the switch case.

  On the other hand, various configurations of the operation body of the shift changeover switch unit are conceivable. For example, an actuator having a pair of pressing units pressed by the shift lever and the actuator in both the pressing direction of the shift lever and the opposite direction thereof. The structure provided with the urging | biasing means urged | biased to a direction is employable. In this case, for example, a coil spring can be used as the biasing means, and the spring holder is accommodated inside the actuator, and both ends of the coil spring are inserted and held in the mounting holes of the spring holder, and this is held in the switch case. You just have to install it.

  In the shift switch of the present invention, each of the first lever, the second lever, and the third lever includes a fulcrum shaft that is rotatably supported by the switch case, and an upper end of a main body having the fulcrum shaft. You may employ | adopt the structure which has the presser | protrusion shape | molded by protrusion. The first contact spring piece, the second contact spring piece, and the third contact spring piece all branch the common contact and the input contact to one end of a leaf spring bent into a U shape. The configuration described above may be adopted.

  As is apparent from the above configuration, the shift switch of the present invention is improved in handling workability by integrating the mode changeover switch portion and the shift changeover switch portion, and this shift switch is attached in accordance with the direction of the shift lever. Since it is only necessary to determine the posture, the installation work in the automatic transmission becomes extremely simple, and the working time can be shortened. Further, the movable contact (first lever, first contact spring piece) of the mode changeover switch portion and the movable contact (second lever, second contact spring piece, third lever, third contact spring piece) of the shift changeover switch portion, As a result, the assembly of the switch is improved, the cost of the assembly part can be reduced, and the manufacturing cost of the switch can be reduced.

  Embodiments of the present invention will be described below with reference to the accompanying drawings.

  1 is a plan view showing an external appearance of an automatic transmission with a manual shift mode incorporating a shift switch according to the present invention, FIG. 2 is a perspective view showing a mounting position of the shift switch, and FIG. 3 is an exploded perspective view showing an internal structure of the shift switch. 4 and 4 are longitudinal sectional views showing the internal structure of the shift switch.

  As shown in FIGS. 1 and 2, the shift switch 10 of the present embodiment is installed in a manual gate 4 of an automatic transmission with a manual shift mode (hereinafter simply referred to as “transmission” in this embodiment) 1. This is a switch, and two switch mechanisms of a mode changeover switch unit 11 and a shift changeover switch unit 12 are integrated.

  The mode changeover switch 11 operates when the driver moves the shift lever 5 from the D (drive) range of the automatic gate 2 to the manual gate 4 via the connection gate 3 as shown by an arrow A in FIG. Then, it is detected that the switching operation from the automatic transmission mode to the manual transmission mode has been performed. On the other hand, as shown by an arrow B in FIG. 1, the shift changeover switch unit 12 is shown in FIG. 1 when the driver moves the shift lever 5 to the − (down) side of the manual gate 4 in the manual shift mode. As indicated by an arrow C, it operates when the manual gate 4 is moved to the + (up) side, and detects that the operation has been switched to the low-speed gear and the operation to switch to the high-speed gear.

  The shift switch 10 of the present invention can be installed as long as the connecting gate 3 and the manual gate 4 are orthogonal to each other, and the shape of the automatic gate 2 is not particularly limited, as illustrated. It may be a stepped shape instead of a straight line shape.

  Hereinafter, the configuration of the shift switch 10 will be described first, and then the operation of the shift switch 10 will be described.

[Configuration of shift switch]
As shown in FIGS. 2 and 3, in the shift switch 10, the bottom case 21 and the top case 22 are fixed to form an exterior case, and the mode changeover switch unit 11 and the shift changeover switch unit 12 are provided inside the exterior case. It has a structure that accommodates. The bottom case 21 and the top case 22 are both made of a thermoplastic resin having excellent moldability such as POM, and locking claws 211, 211,... .. Are formed on the front and back surfaces of the case 22. The top case 22 is placed on the bottom case 21, and both the cases are fixed by fitting the locking claws 211 into the locking holes 221. Is done.

  A plate-like base 23 is provided inside the exterior case. The base 23 is made of a thermoplastic resin having excellent electrical insulation, such as PBT, and is integrally welded onto the bottom case 21 by heat welding. A switch case 24 made of a thermoplastic resin such as POM is further fixed on the base 23 to constitute a box-shaped interior case. In this interior case, a vertical case 25 standing perpendicularly to the bottom case 21 and a horizontal case 26 lying horizontally on the bottom case 21 are installed orthogonally, and the mode switch 11 is provided on the vertical case 25 side. The shift changeover switch unit 12 is installed on the horizontal case 26 side (see FIGS. 3 and 4).

(A) Mode Changeover Switch Unit In the mode changeover switch unit 11, the fixed terminal 30 and the movable contact 40 are built in the vertical case 25, and an operation for operating the movable contact 40 outside the vertical case 25. A body 50 is installed.

  FIG. 5 is an enlarged view showing the structure of the fixed terminal. As shown in the figure, the fixed terminal 30 is formed by pressing a conductive metal plate such as brass into a predetermined pattern shape, and is fixed to both the base 23 and the switch case 24. The pattern shape of the fixed terminal 30 is as illustrated, and the mode changeover switch unit 11 has a pair of upper and lower terminals inside the vertical case 25.

  The upper terminal is a ground input terminal 31 (hereinafter referred to as a first ground input terminal 31-1), and as shown in FIG. It is fixed to the inner wall surface and is electrically connected to a ground output terminal 35 protruding outside the base 23. On the other hand, the lower terminal is a mode input terminal 32, which is arranged at a position slightly lower than the first ground input terminal 31-1 and is electrically connected to a mode output terminal 36 outside the base 23.

  FIG. 6 is an enlarged view showing the structure of the movable contact. As shown in the figure, the movable contact 40 is composed of a lever 41 and a contact spring piece 42. Since the same component is used for the lever 41 and the contact spring piece 42 in the shift changeover switch section 12 described later, the ones used in the mode changeover switch section 11 are the first lever 41-1 and the first contact spring piece 42-. It shall be 1.

  The first lever 41-1 is made of a thermoplastic resin such as POM, and a presser 412 is projected and formed on the upper end of the main body having the fulcrum shaft 411, and the first contact spring piece 42-1 is mounted on the lower end of the main body. A groove 413 is formed. The fulcrum shaft 411 is rotatably supported on the inner wall surface of the vertical case 25, and the presser 412 protrudes from an elongated slit 251 opened on the side surface of the vertical case 25 (see FIG. 3).

  The first contact spring piece 42-1 is made of a conductive metal plate such as phosphor bronze, and the metal plate is bent into a U shape to form a bent portion 421, which is formed into a plate spring shape that can be flexibly deformed. . One end of the U-shape has an upper piece 422, and the first contact spring piece 42-1 and the first lever 41-1 are integrated by inserting and welding the upper piece 422 into the groove 413. . In addition, two long and short contacts are formed by bifurcating the tip of the lower piece 423 at the other end of the U shape. Among these, the longer contact is the common contact 424 and is always in contact with the mode input terminal 32, whereas the shorter contact is the input contact 425 and the first lever 41-1. Deflection is performed in conjunction with the rotation operation, and the first ground input terminal 31-1 is contacted for the first time at this time (see FIG. 4).

  FIG. 7 is an enlarged view showing the structure of the operating body in the mode switch part. As shown in the figure, the operating body 50 of the mode changeover switch unit 11 includes a knob 51 and a coil spring 52. Since the coil spring 52 is also used in the shift changeover switch section 12 described later, the one used in the mode changeover switch section 11 is referred to as a first coil spring 52-1.

  The knob 51 is made of a thermoplastic resin such as POM, has a pressing portion 511 on the upper surface of the cylindrical main body, has a protrusion 512 formed on the side surface of the main body, and attaches the first coil spring 52-1 to the bottom surface of the main body. A mounting hole 513 is provided. The first coil spring 52-1 is a SUS rod-like body wound in a coil shape, and is inserted into the mounting hole 513 and integrated with the knob 51. The lower end of the first coil spring 52-1 is attached to a pin 212 formed on the bottom case 21 and urges the knob 51 upward.

  The pressing portion 511 of the knob 51 protrudes from the opening 222 on the top surface of the top case 22, and the upper end of the step portion 514 provided in the middle step of the knob 51 abuts on the periphery of the opening 222, so that the knob 51 is at the top. It is secured from the case 22. In this way, the knob 51 is guided and slid by the side surface of the vertical case 25 and is supported so as to be able to reciprocate up and down, and the projection 512 on the side surface of the knob 51 causes the pressing element 412 to move when the knob 51 is lowered. The first lever 41-1 is rotated by pushing (see FIGS. 3 and 4).

(B) Shift changeover switch portion In the shift changeover switch portion 12, the fixed terminal 30 and the movable contact 40 are built in the horizontal case 26, and the operating body 50 for operating the movable contact 40 outside the horizontal case 26. Is installed.

  As shown in FIG. 5, the fixed terminal 30 is the same component as that of the mode changeover switch unit 11 described above, and the shift changeover switch unit 12 has two pairs of left and right terminals inside the horizontal case 26. . Among these terminals, the terminal on the left outer side is a downshift input terminal 33, which is fixed to the upper surface of the base 23 so as to be arranged horizontally with respect to the base 23, and is electrically connected to a downshift output terminal 37 protruding outside the base 23. ing. A terminal on the left inner side is a ground input terminal 31 (hereinafter referred to as a second ground input terminal 31-2), which is arranged at a position slightly inward from the downshift input terminal 33, and is located outside the base 23. Is connected to the ground output terminal 35.

  On the other hand, the terminal on the right outer side is an upshift input terminal 34, which is disposed at a symmetrical position of the downshift input terminal 33, and is electrically connected to an upshift output terminal 38 outside the base 23. Further, the terminal on the right inner side is a ground input terminal 31 (hereinafter referred to as a third ground input terminal 31-3). From the left and right target positions of the second ground input terminal 31-2, the upshift input terminal 34 It is arranged at a slightly inner position and is electrically connected to the ground output terminal 35 outside the base 23.

  As shown in FIG. 6, the movable contact 40 includes a lever 41 and a contact spring piece 42. Since the lever 41 and the contact spring piece 42 are used one by one on both the left and right sides in this shift changeover switch section 12, the one used on the left side is the second lever 41-2 and the second contact spring piece 42-, respectively. 2 and those used on the right side are referred to as a third lever 41-3 and a third contact spring piece 42-3, respectively.

  Both the second lever 41-2 and the third lever 41-3 are components common to the first lever 41-1. However, the mounting position is different, the fulcrum shaft 411 of the second lever 41-2 is rotatably supported at the left end of the inner wall surface of the horizontal case 26, and the presser 412 is an elongated shape opened to the left side of the upper surface of the horizontal case 26. It protrudes from the slit 261. The fulcrum shaft 411 of the third lever 41-3 is rotatably supported at the right end of the inner wall surface of the horizontal case 26, and the presser 412 protrudes from an elongated slit 262 opened at the right end of the upper surface of the horizontal case 26. (See FIG. 3).

  The second contact spring piece 42-2 and the third contact spring piece 42-3 have the same configuration as the first contact spring piece 42-1 described above, and the second lever 41-2 and the third lever, respectively. 41-3. However, the mounting position is different, and in the second contact spring piece 42-2, the common contact 424 is always in contact with the downshift input terminal 33, and the input contact 425 is interlocked with the rotation operation of the second lever 41-2. It is deformed by bending, and contacts the second ground input terminal 31-2 for the first time at this time. On the other hand, in the third contact spring piece 42-3, the common contact 424 always contacts the upshift input terminal 34, and the input contact 425 is flexibly deformed in conjunction with the rotation of the third lever 41-3. For the first time, the third ground input terminal 31-3 is contacted (see FIG. 4).

  FIG. 8 is an enlarged view showing the structure of the operating body in the shift switch part. As shown in the figure, the operating body 50 of the shift changeover switch unit 12 includes an actuator 53, a spring holder 54, and a coil spring 52. Since the coil spring 52 is also used in the mode changeover switch unit 11 described above, the one used in the shift changeover switch unit 12 is referred to as a second coil spring 52-2.

  The actuator 53 is made of a thermoplastic resin such as POM, and has a pair of left and right pressing portions 531 and 531 on the top surface of the box-shaped main body. The housing portion 532 is opened on the front surface of the main body, and grooves 533 and 533 are formed on both side surfaces of the main body. Has been. The spring holder 54 has a pair of arm portions 541 and 541 formed on the side surface of the main body, and mounting holes 542 and 542 are formed inside both the arm portions 541. The second coil spring 52-2 is a SUS rod-like body wound in a coil shape, and both ends thereof are inserted into the mounting holes 542 and 542 and held by the spring holder 54. The spring holder 54 is accommodated in the accommodating portion 532 of the actuator 53, and the arm portion 541 is urged in the left and right directions by the second coil spring 52-2 fitted in the groove 533 and mounted therein.

  The pressing portions 531 and 531 of the actuator 53 protrude from the opening 223 on the upper surface of the top case 22, and step portions 543 and 543 formed at both ends of the spring holder 54 are in contact with and supported by the peripheral edge of the opening 223. 53 is retained from the top case 22. In this way, the actuator 53 is guided and slid by the upper surface of the horizontal case 26 and is supported so as to be able to reciprocate left and right. When the actuator 53 moves leftward, the left side surface 534 of the actuator 53 pushes the pressing element 412 to When the second lever 41-2 is rotated and moved to the right, the right side surface 535 of the actuator 53 presses the pressing element 412 to rotate the third lever 41-3 (FIGS. 3 and 3). 4).

  As described above, the shift switch 10 of the present invention has the mode changeover switch portion 11 and the shift changeover switch portion 12 integrated and is compactly accommodated in the outer case. Therefore, as shown in FIG. It is possible to install in the transmission 1 only by attaching the gears in accordance with the direction of the shift lever 6, and the installation work is extremely simple and the working time can be shortened. In addition to this, the movable contact (first lever 41-1 and first contact spring piece 42-1) of the mode changeover switch unit 11 and the movable contact (second lever 41-2, second contact of the shift changeover switch unit 12). By configuring the two-contact spring piece 42-2, the third lever 41-3, and the third contact spring piece 42-3) with common parts, the assembly of the switch is improved, and the assembly parts are reduced in cost. This can reduce the manufacturing cost of the switch.

[Shift switch operation]
9 and 10 are explanatory diagrams showing the operation of the mode changeover switch unit, and FIGS. 11, 12 and 13 are explanatory diagrams showing the operation of the shift changeover switch unit. In the drawing, in order to facilitate understanding of the operation of the switch unit, the parts not related to the operation are not shown.

(A) Operation of Mode Changeover Switch Unit FIG. 9 shows a no-load state in the mode changeover switch unit. This no-load state is a state in which no load is applied to the knob 51 constituting the operating body 50, that is, when the shift lever 5 is in the automatic gate 2 in the transmission 1 shown in FIG. State. At this time, in the mode switch 11, the first coil spring 52-1 biases the knob 51 upward, so that the pressing portion 511 of the knob 51 protrudes from the upper surface of the top case 22 and the actuator 53 presses. The height is the same as the portion 531.

  Further, the protrusion 512 on the side surface of the knob 51 is positioned above the first lever 41-1 and does not contact the pressing element 412. Therefore, no external force is applied to the first lever 41-1, and the common contact 424 of the first contact spring piece 42-1 is in contact with the first ground input terminal 31-1, but the input contact The child 425 is not in contact with the mode input terminal 32. Accordingly, the first ground input terminal 31-1 and the mode input terminal 32 are not connected, and the mode switching signal is transmitted from the mode output terminal 36 conducted to the mode input terminal 32 to the control unit (not shown) of the transmission 1. Is not output, the transmission 1 remains in the automatic transmission mode.

  Next, FIG. 10 shows a state at the time of loading in the mode switch part. This loaded state is a state in which a downward load is applied to the knob 51 constituting the operating body 50, that is, in the transmission 1, the shift lever 5 is moved from the D (drive) range of the automatic gate 2 to the contact gate 3. This is the state when moving to the manual gate 4 and switching from the automatic transmission mode to the manual transmission mode. At this time, in the mode changeover switch portion 11, the pressing portion 511 pushed by the shaft 6 of the shift lever 5 compresses the first coil spring 52-1, and moves downward, whereby the knob 51 is moved to the vertical case 25. It is guided along the side surface and moves downward by a predetermined stroke.

  In the middle of the lowering of the knob 51, the protrusion 512 on the side surface of the knob 51 collides with the pressing element 412 of the first lever 41-1, and pushes the first lever 41-1 into the vertical case 25. Try to include. Here, the first lever 41-1 rotates counterclockwise in the drawing around the fulcrum shaft 411, and the first contact spring piece 42-1 moves to the first lever 41-1 in conjunction with the rotation. Since it is pushed and deformed, the input contact 425 is pushed down to contact the mode input terminal 32. As a result, the mode input terminal 32 and the first ground input terminal 31-1 are connected via the first contact spring piece 42-1, and the mode output terminal 36 conducted to the mode input terminal 32 is connected to the control unit of the transmission 1. On the other hand, since the mode switching signal is output, the transmission 1 is switched from the automatic transmission mode to the manual transmission mode.

  On the contrary, when the driver moves the shift lever 5 to the automatic gate 2 in the right lateral direction in order to return from the manual shift mode to the automatic shift mode, the knob 51 is released from the pressing force of the shaft 6, and the first It is pushed back upward by the elastic return force of the coil spring 52-1. Further, the knob 51 is guided along the side surface of the vertical case 25 to move up by a predetermined stroke, and the first lever 41-1 is rotated around the fulcrum shaft 411 in the clockwise direction in the drawing to be deformed. The first contact spring piece 42-1 is restored. As a result, the input contact 425 is separated from the mode input terminal 32, and the connection between the mode input terminal 32 and the first ground input terminal 31-1 is broken. Therefore, since the mode switching signal output from the mode output terminal 36 to the control unit of the transmission 1 is cut off, the transmission 1 is switched from the manual transmission mode to the automatic transmission mode. The above is the mode switching operation in the mode switch section 11.

(B) Operation of Shift Changeover Switch Unit FIG. 11 shows a no-load state in the shift changeover switch unit. This no-load state is a state in which no load is applied to the actuator 53 constituting the operating body 50, that is, a state in which the shift lever 5 is not moved in the neutral position of the manual gate 4 with respect to the transmission 1. is there. At this time, the second coil spring 52-2 accommodated in the spring holder 54 urges the actuator 53 in both the left and right directions in the shift changeover switch portion 12, and thereby the pressing portion 531 of the actuator 53 is on the top case 22. Located in the center.

  Further, the left and right side surfaces 534 and 535 of the actuator 53 are located on the inner side of the second lever 41-2 and the third lever 41-3 and are not in contact with the pressing elements 412 and 412 of both levers. Therefore, no external force is applied to the second lever 41-2, and the common contact 424 of the second contact spring piece 42-2 is in contact with the second ground input terminal 31-2. The child 425 is not in contact with the downshift input terminal 33. Similarly, no external force acts on the third lever 41-3, and the common contact 424 of the third contact spring piece 42-3 is in contact with the third ground input terminal 31-3, but the input contact 425 Is not in contact with the upshift input terminal 34. Therefore, the downshift input terminal 33 and the upshift input terminal 34 are not connected to the second ground input terminal 31-2 and the third ground input terminal 31-3, and the shift is performed from the downshift output terminal 37 and the upshift output terminal 38. Since the shift switching signal is not output to the control unit of the machine 1, the transmission 1 remains in the neutral state of the manual transmission mode.

  Next, FIG. 12 shows a state at the time of loading in the shift changeover switch section. The loaded state shown in the figure is a state in which a left lateral load is applied to the actuator 53 constituting the operating body 50, that is, in the transmission 1, the shift lever 5 is moved to the − (down) side of the manual gate 4. This is the state when switching to the low-speed gear. At this time, in the shift changeover switch portion 12, the pressing portion 531 pushed by the shaft 6 of the shift lever 5 compresses the second coil spring 52-2 and moves to the left. Further, the left step 543 of the spring holder 54 abuts on the top case 22 to restrict movement, while the right step 543 moves away from the top case 22 and moves to the left together with the actuator 53. As a result, the actuator 53 is guided along the upper surface of the horizontal case 26 and moves to the left by a predetermined stroke.

  Further, while the actuator 53 is moving, the left side surface 534 of the actuator 53 collides with the pressing element 412 of the second lever 41-2 and tries to push the second lever 41-2 into the horizontal case 26. Here, the second lever 41-2 rotates about the fulcrum shaft 411 in the counterclockwise direction in the drawing, and the second contact spring piece 42-2 moves to the second lever 41-2 in conjunction with the rotation. Since it is pushed and deformed, the input contact 425 is pushed down to contact the downshift input terminal 33. As a result, the downshift input terminal 33 and the second ground input terminal 31-2 are connected via the second contact spring piece 42-2, and the downshift output terminal 37 conducted to the downshift input terminal 33 is connected to the transmission 1 from the downshift output terminal 37. Since the shift switching signal flows to the control unit, the transmission 1 is switched to the low speed gear.

  On the contrary, FIG. 13 shows a state at the time of the upshift operation in the shift changeover switch section. When the driver moves the shift lever 5 to the + (up) side of the manual gate 4, in the shift changeover switch portion 12, the pressing portion 531 pressed by the shaft 6 of the shift lever 5 compresses the second coil spring 52-2. And move to the right. Contrary to the above, the actuator 53 is guided along the upper surface of the horizontal case 26 and moves to the right by a predetermined stroke. At this time, the second lever 41-2 is released from the pressing force of the actuator 53, and the deformed second contact spring piece 42-2 is restored. Thereby, since the input contact 425 is separated from the downshift input terminal 33, the connection between the downshift input terminal 33 and the second ground input terminal 31-2 is disconnected, and the shift switching signal flowing from the downshift output terminal 37 is lost. Is cut off.

  On the other hand, this time, the right side surface 535 of the actuator 53 collides with the pressing element 412 of the third lever 41-3 and pushes the third lever 41-3 into the horizontal case 26. At this time, the third lever 41-3 rotates around the fulcrum shaft 411 in the clockwise direction in the figure, and the third contact spring piece 42-3 pushes against the third lever 41-3 in conjunction with this rotation. As a result, the input contact 425 is pushed down to contact the upshift input terminal 34. As a result, the upshift input terminal 34 and the third ground input terminal 31-3 are connected via the third contact spring piece 42-3, and the upshift output terminal 38 that is conductive to the upshift input terminal 34 is connected to the transmission 1. Since the shift switching signal flows to the control unit, the transmission 1 is switched to the high speed gear.

  When the shift lever 5 is moved to the neutral position of the manual gate 4, the actuator 53 is released from the pressing force of the shaft 6 and is pushed back to the center position of the top case 22 by the elastic return force of the second coil spring 52-2. It is. When the actuator 53 returns to the center position, no external force is applied to the second lever 41-2 and the third lever 41-3, and the input contact 425 is also raised to the downshift input terminal 33, as described with reference to FIG. Since the shift input terminal 34 is not contacted, the shift switching signal does not flow from the downshift output terminal 37 and the upshift output terminal 38 to the control unit of the transmission 1, and the transmission 1 is in the neutral state of the manual transmission mode. Become. The above is the shift switching operation in the shift switch section 12.

The top view which shows the external appearance of the automatic transmission with a manual transmission mode which incorporated the shift switch. The perspective view which shows the attachment position of a shift switch. The disassembled perspective view which shows the internal structure of a shift switch. The longitudinal cross-sectional view which shows the internal structure of a shift switch. The enlarged view which shows the structure of a fixed terminal. The enlarged view which shows the structure of a movable contact. The enlarged view which shows the structure of the operation body in a mode switch part. The enlarged view which shows the structure of the operation body in a shift switch part. Explanatory drawing which shows the state of no load in a mode change switch part. Explanatory drawing which shows the state in which the downward load was added to the knob of the mode switch part. Explanatory drawing which shows the no-load state in a shift switch part. Explanatory drawing which shows the state in which the leftward load was added to the actuator of a shift switch part. Explanatory drawing which shows the state in which the rightward load was added to the actuator of a shift switch part.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Automatic transmission with manual transmission mode 2 Automatic gate 3 Contact gate 4 Manual gate 5 Shift lever 6 Shaft 10 Shift switch 11 Mode change switch part 12 Shift change switch part 21 Bottom case (211 Locking claw, 212 pin)
22 Top case (221 locking hole, 222 opening, 223 opening)
23 Base 24 Switch case 25 Vertical case (251 slit)
26 Horizontal case (261 slit, 262 slit)
30 fixed terminal 31 ground input terminal 31-1 first ground input terminal 31-2 second ground input terminal 31-3 third ground input terminal 32 mode input terminal 33 downshift input terminal 34 upshift input terminal 35 ground output terminal 36 Mode output terminal 37 Downshift output terminal 38 Upshift output terminal 40 Movable contact 41 Lever (411 fulcrum shaft, 412 presser, 413 groove)
41-1 first lever 41-2 second lever 41-3 third lever 42 contact spring piece (421 anti-curved portion, 422 upper piece, 423 lower piece, 424 common contact, 425 input contact)
42-1 First contact spring piece 42-2 Second contact spring piece 42-3 Third contact spring piece 50 Operation body 51 Knob (511 pressing portion, 512 protrusion, 513 mounting hole, 514 step portion)
52 Coil Spring 52-1 First Coil Spring 52-2 Second Coil Spring 53 Actuator (531 Pressing Portion, 532 Housing Portion, 533 Groove, 534 Left Side, 535 Right Side)
54 Spring holder (541 arm, 542 mounting hole, 543 step)

Claims (3)

Built in the automatic transmission with manual shift mode, the shift lever is moved from the automatic gate to the manual gate to detect the switching operation from the automatic shift mode to the manual shift mode. A shift switch that is integrated with a shift change-over switch unit that detects that a downshift or an upshift has been switched and moved.
The mode switch part is
A mode input terminal arranged vertically in the switch case;
A first ground input terminal spaced apart from the mode input terminal;
A first lever supported rotatably in the switch case and protruding from a side surface of the switch case;
A first contact spring having a common contact mounted on the first lever and constantly contacting the mode input terminal, and an input contact contacting the first ground input terminal in conjunction with the rotation of the first lever. With a piece,
An operating body that is slidably supported along the side surface of the switch case and is operated by being pushed by the shift lever during the switching operation to the manual shift mode, and at this time, the first lever is pushed to rotate. ,
The shift switch part is
A downshift input terminal disposed horizontally in the switch case;
A second ground input terminal spaced apart from the downshift input terminal;
An upshift input terminal arranged at a symmetrical position of the downshift input terminal;
A third ground input terminal disposed at a symmetrical position of the second ground input terminal;
A second lever supported rotatably in the switch case and protruding from the upper surface of the switch case;
A second contact having a common contact mounted on the second lever and constantly contacting the downshift input terminal, and an input contact contacting the second ground input terminal in conjunction with the rotation of the second lever. Spring pieces,
A third lever supported rotatably in the switch case and protruding from the upper surface of the switch case;
A third contact having a common contact mounted on the third lever and constantly contacting the upshift input terminal, and an input contact contacting the third ground input terminal in conjunction with the rotation of the third lever. Spring pieces,
The switch case is slidably supported along the upper surface of the switch case and is operated by being pushed by the shift lever during the downshift or upshift operation. At this time, one of the second lever and the third lever is pushed to rotate. An operating body, and
The first lever, the second lever, and the third lever are configured as a common component, and the first contact spring piece, the second contact spring piece, and the third contact spring piece are shared. A shift switch characterized by comprising the above-mentioned parts.   Each of the first lever, the second lever, and the third lever includes a fulcrum shaft that is rotatably supported by the switch case, and a pressing member that is projected and formed at the upper end of the main body having the fulcrum shaft. The shift switch according to claim 1, wherein the shift switch has a shape.   Each of the first contact spring piece, the second contact spring piece, and the third contact spring piece branches the common contact and the input contact to one end of a leaf spring bent in a U shape. The shift switch according to claim 1, wherein the shift switch has a shape as follows.

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