JP4187509B2 - Control shaft wire mounting pin fall-off prevention structure - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a structure for preventing a wire attachment pin from falling off a control shaft used for a parking mechanism or the like in a vehicle transmission.
[0002]
[Prior art]
  Conventionally known is a remote control mechanism for operating an operation target by swinging a control shaft held swingably around an axis with a wire.Vehicle transmissionUsed in a parking mechanism or the like.Vehicle transmissionThe parking mechanism has a configuration in which a protrusion of a parking pole is meshed with a parking gear fixed to an output shaft, and this remote control device is used to operate the parking pole (see, for example, Patent Document 1). .
[0003]
Conventionally, in an automatic transmission of a vehicle using an engine as a prime mover, a parking gear is fixed to a countershaft, and a parking lever for operating a parking pawl that meshes with an outer peripheral tooth of the parking gear extends in parallel with the countershaft. Attached to the control shaft. The control shaft is supported by the transmission case so as to be rotatable (swingable) about its axis. A control lever is provided at one end of the control shaft, and a shift lever provided in the driver's seat of the vehicle is provided on the control lever. A control wire connected to is provided. On the other hand, the other end of the control shaft is provided with a bearing that supports the control shaft and a position sensor switch that detects the shift position of the shift lever based on the rotational position of the control shaft. A control lever cover is attached to protect the members such as the control lever from pebbles coming into
[0004]
Here, the control wire is connected to the control lever by a wire mounting pin inserted into the control lever, and the wire mounting pin attached to the control lever is on the side opposite to the insertion side. It is fixed in the control lever by a clip attached from above. And even if the clip is loosened due to vibrations from the engine or other causes, the wire mounting pin will not fall off the control lever and the control wire will not come off from the control lever. The wire attachment pin is inserted into the control lever from the control lever cover side, and the distance between the control lever cover and the wire attachment pin is removed from the control lever to prevent the wire attachment pin from falling off the control lever. The wire mounting pin that is about to be kept at a distance that can come into contact with the control lever cover.
[0005]
Also, in a conventional vehicle (electric vehicle) transmission that uses an electric motor as a prime mover, the parking gear is fixed to the counter shaft, and the parking lever that operates the parking pole that meshes with the outer peripheral teeth of the parking gear is the transmission. It is attached to the control shaft supported by the case. One end side of the control shaft protrudes outward from the transmission case (the side opposite to the prime mover), and a bearing for supporting the control shaft is provided at the end of the protruding portion. Further, a control lever is provided between the bearing and the transmission case, and a position sensor switch is also provided at the end of the control shaft on the bearing side. A control lever cover for protecting the control lever and the like is attached to the outside of the transmission case by a plurality of cover mounting bolts. The joint between the transmission case and the control lever cover and the control lever cover and the cover mounting bolt are connected to each other. In the meantime, a rubber member is installed to prevent the control lever cover from resonating by reducing vibration transmitted from the transmission case side to the control lever cover side.
[0006]
[Patent Document 1]
JP 2001-295922 A
[Patent Document 2]
JP 2001-253324 A
[Patent Document 3]
JP 2001-341619 A
[0007]
[Problems to be solved by the invention]
  By the way, in a vehicle transmission mounted on an electric vehicle, an electric motor as a prime mover is used.motorTherefore, in order to make the entire transmission compact, it is necessary to dispose the parking mechanism centered on the control shaft inside the outer shape of the electric motor. Further, when such an arrangement is adopted, as described above, the control shaft must be protruded on the side opposite to the prime mover side of the transmission case, and a control lever must be provided there. In this respect, the prime mover that can arrange the control lever connected to the control wire on the prime mover side, can arrange the control lever on one end side of the control shaft, and the bearing and position sensor switch on the other end side. This is different from the case of a vehicle transmission that is an engine. As in the case of a vehicle transmission using this electric motor as a prime mover, in a configuration in which a control lever, a bearing, and a position sensor switch are all arranged on one end side of the control shaft, a bearing and Since it is necessary to provide a position sensor switch, the control lever cannot be brought close to the control lever cover. As a result, the control lever cover has a function to prevent the pin from falling off as in the case where the prime mover is an engine. I couldn't make it.
[0008]
  In order to avoid such an inconvenience, there is a method of providing a collar member, which is a dedicated component for preventing pin dropout, in the transmission case. This is a wire mounting pin that attaches the control wire to the control lever, and is inserted into the control lever along the axial direction of the control shaft, and the collar member is arranged in the direction of removal of the wire mounting pin. It is. However, in the case of adopting such a configuration, since it is difficult to attach the collar member, there is an increase in cost required for manufacturing, and there is a problem that the maintainability is also inferior. Furthermore, the control shaft changes its rotational (swinging) position depending on the position of the shift lever, and the wire mounting pin attached to the control lever is moved to positions “P (parking)”, “R (reverse)”, Either “N (neutral)” or “D (forward)” is taken, but in order to make the collar member always face the wire mounting pin regardless of the position of the wire mounting pin, it is considerably large. A special color member is required.AttachSince the bolt for this purpose also becomes large, there also existed a problem that a weight increased.
[0009]
The present invention has been made in view of such problems, and has a configuration that is simpler than that of the prior art, can improve productivity and maintainability, and can reduce weight. It is an object of the present invention to provide a structure for preventing a wire attachment pin from falling off a control shaft.
[0010]
[Means for Solving the Problems]
  In order to achieve such an object, the control shaft wire attachment pin drop-off preventing structure according to the present invention is held by a shaft holding body and the shaft holding body so as to be swingable around an axis, and one end side is outside the shaft holding body. A control shaft having a protruding and extending lever portion extending in the off-axis direction at the protruding portion, a cover member attached to cover the protruding portion of the control shaft on the outer surface side of the shaft holder, and the shaft Inserted into the lever part from the holder side,Wire mounting pins provided extending in the axial direction of the control shaft;It is connected to the lever part via the wire mounting pin, and is installed between the shaft holding body and the cover member to swing the control shaft around the axis when tension is applied, and the wire mounting pin and shaft holding It consists of a plate-like member that extends between the body and abuts against the wire attachment pin to prevent the wire attachment pin from coming off from the lever portion.
[0011]
In the control shaft wire attachment pin drop prevention structure according to the present invention, the wire attachment pin attached to the lever portion of the control shaft and connecting the control shaft and the wire is inserted into the lever portion from the shaft holding body side. And a plate-like member installed between the shaft holder and the cover member is positioned between the wire attachment pin and the shaft holder to prevent the wire attachment pin from coming off from the lever portion. . For this reason, it is not necessary to attach a dedicated part for preventing the wire attachment pin from being attached to the shaft holding member or the like as in the prior art, so that the configuration is simplified and the plate-like member is interposed between the shaft holding body and the cover member. Since it is installed, the attachment becomes very easy compared with the case where the dedicated part is attached to a predetermined portion of the shaft holder, so that productivity and maintainability can be improved as compared with the conventional case. Further, since the plate-like member used here may be a thin plate (not limited to a metal, it may be a rubber member), so that the weight is higher than a conventional configuration in which a color component is attached to a shaft holder with bolts or the like. It can be reduced.
[0012]
In the control shaft wire attachment pin drop-off preventing structure according to the present invention, the cover member is attached to the shaft holder by fitting the hole provided in the plate-like member into the protrusion provided in the shaft holder. The plate member can be temporarily fixed to the shaft holder. If it does in this way, attachment of a plate-shaped member will become very simple, and productivity and maintainability can be improved further.
[0013]
Further, the control shaft wire attachment pin drop-off preventing structure according to the present invention can be applied to a parking mechanism of a vehicle transmission, and in this case, the shaft holder is a transmission case of the vehicle transmission. The control shaft is a shaft for swinging the parking lever that meshes the parking pole with the outer peripheral teeth of the parking gear provided in the vehicle transmission, and the plate-like member reduces vibration transmitted from the shaft holder side to the cover member side. The configuration is a rubber sheet for vibration reduction. As a result, the above-described effect can be obtained in the parking mechanism of the vehicle transmission. In this case, in particular, the rubber seat necessary for vibration reduction also serves as a member for preventing the wire attachment pin from falling off. The number of parts can be reduced, and the manufacturing process can be simplified.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
  Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. FIG. 2 illustrates a control shaft wire attachment pin drop-off preventing structure according to an embodiment of the present invention.Vehicle transmissionIt is a skeleton figure which shows the structure of. As shown in this figure, according to this embodimentVehicle transmission1 (hereinafter abbreviated as “transmission”) 1 uses as its prime mover an electric motor M that receives power supplied from a battery B mounted on a vehicle (not shown) and applies rotational power to an output shaft S. Of the type mounted onVehicle transmissionIt is.
[0015]
The main shaft 10 in the transmission 1 is supported in the transmission case 5 by a first bearing 51 and a second bearing 52 so as to be rotatable about its axis, and is directly coupled to the output shaft S of the electric motor M. The counter shaft 20 is supported by a third bearing 53 and a fourth bearing 54 at a position parallel to the main shaft 10 so as to be rotatable about its axis.
[0016]
The main gear 12 fixed on the main shaft 10 is always meshed with the counter gear 22 fixed on the counter shaft 20, and the rotational power input to the main shaft 10 from the electric motor M is the main gear 12 and the counter gear. 22 is transmitted to the countershaft 20 via A final drive gear 24 is provided to the right of the counter gear 22 on the counter shaft 20, and this final drive gear 24 is always meshed with a final driven gear 32 fixed to the differential case 30.
[0017]
  Inside the differential case 30 are two differential pinions 34 and two side gears.36The left and right axle shafts 42 and 42 are fixed to the side gears 36 and 36, respectively. The center axes of the left and right axle shafts 42, 42 are arranged in parallel with the rotation axes of the main shaft 10 and the counter shaft 20, and the differential case 30 rotates with the center axes of the left and right axle shafts 42, 42 as the rotation axes. It is supported by a fifth bearing 55 and a sixth bearing 56 so as to be able to do so. In addition, driving wheels (front wheels of the vehicle) (not shown) are attached to the ends of the left and right axle shafts 42 and 42.
[0018]
As shown in FIG. 2, the transmission case 5 of the transmission 1 includes a right case 5a and a left case 5b. Here, FIG. 3A is a side view of the transmission 1 as viewed from the left, and FIG. 3B is a side view of the transmission 1 with the left case 5b removed as viewed from the left. . As shown in these drawings, the left and right cases 5a, 5b are joined by a plurality of joining bolts 7, and an electric motor M is attached to the right side of the right case 5a by a plurality of motor mounting bolts 8. It has been.
[0019]
FIG. 4 is a perspective view of the shift lever 100 provided in the driver's seat (not shown) of the vehicle as viewed obliquely from above. As shown in this figure, the escutcheon 102 provided at the base of the shift lever 100 has four shift position marks “P (parking)”, “R (reverse)”, “N (neutral)”, “D ( Forward) ”is written in this order from front to back, and the shift lever 100 can be positioned at any of the four positions corresponding to these four shift position marks. Note that a detent mechanism (not shown) is provided at the base of the shift lever 100 so that the shift lever 100 can be positioned only in any one of these four positions.
[0020]
Further, as shown in FIG. 2, a parking gear 26 is fixed to the right position of the counter gear 22 on the counter shaft 20 (see also FIG. 3B). The parking gear 26 is a gear used to lock the countershaft 20 with respect to the transmission case 5 when the shift lever 100 is shifted to the “P” position. A number of teeth for meshing 72 are provided.
[0021]
FIG. 5 is a perspective view in which the members required for locking the countershaft 20 are drawn with the parking gear 26 as the center, and the left side in FIG. 5 corresponds to the left side in FIG. As shown in this figure, a parking shaft 70 is provided at a position extending in parallel with the countershaft 20 to which the parking gear 26 is fixed. A parking lock pole 72 is fixed. A protrusion 72 a (see FIG. 6) is formed at the end of the parking lock pole 72 so as to protrude so as to face the outer peripheral teeth of the parking gear 26, and this protrusion 72 a is connected to the outer peripheral teeth of the parking gear 26. When engaged, the parking gear 26 (that is, the counter shaft 20) is locked to the transmission case 5.
[0022]
Here, the parking lock pole 72 (that is, the parking shaft 70) is moved in the direction of the arrow A shown in FIG. 5 (the direction away from the parking gear 26) by the coiled return spring 74 provided on the parking shaft 70. As will be described later, as long as the shift lever 100 is shifted to the “P” position and the parking lock pawl 72 is not pressed against the parking gear 26, the protrusion 72a of the parking lock pawl 72 will be described later. Is not meshed with the outer peripheral teeth of the parking gear 26. Therefore, the protrusion 72a is engaged with the outer peripheral teeth of the parking gear 26 only when the parking shaft 70 rotates (swings) about the axis in the direction of arrow B shown in FIG. 5 against the urging force of the return spring 74. Can be matched.
[0023]
A control shaft 80 is provided at a position extending in parallel with the parking shaft 70 so as to be rotatable (oscillated) about its axis. A control lever 90 and a parking lever 82 extending in the off-axis direction are provided on the control shaft 80, and the control lever 90 is detachable from the control shaft 80 by lever mounting bolts 86 (see FIG. 1). It is supposed to be fixed to. On the other hand, the parking lever 82 is rotatably mounted on the control shaft 80 at the base end side of the arm portion 82a having a U-shaped cross section, and a cylindrical roller member is provided at the other end side of the arm portion 82a. 82b is rotatably attached.
[0024]
The parking lever 82 is restricted in rotational movement (oscillation) in the direction of arrow C shown in FIG. 5 by a stopper (not shown) provided on the control shaft 80, and has a coil shape provided on the control shaft 80. The return spring 84 is always urged in the direction of the arrow C, and when the control shaft 80 rotates around the axis, it rotates integrally therewith. However, when the control shaft 80 rotates in the direction of arrow C, a large resistance force in the direction of arrow D shown in FIG. 5 (that is, movement of the parking lever 82 in the direction of arrow C is hindered). When the force) is applied, only the control shaft 80 rotates in the direction of arrow C, and the parking lever 82 cannot follow this and remains in a “waiting” state while being biased in the direction of arrow C by the return spring 84. . Such a resistance force acts when the parking lock pawl 72 is pressed against the parking gear 26, and the protrusion 72a of the parking lock pawl 72 cannot mesh with the outer peripheral teeth of the parking gear 26. This is the case when riding up (described later).
[0025]
  The other end of the control wire 104 having one end coupled to the shift lever 100 is connected to the tip of the control lever 90 by a wire mounting pin 92 attached to the control lever 90. When the tilting operation is performed as shown in FIG. 4, the control shaft 80 rotates and swings in the direction of arrow C via the control wire 104 and the control lever 90.
[0027]
Here, when the shift lever 100 is shifted from the position other than the “P” position to the “P” position, the control shaft 80 rotates in the direction of the arrow C, and the roller portion 82 b of the parking lever 82 moves to the parking lock pole 72. The parking lock pole 72 is pressed in the direction of arrow B (the parking gear 26 side) while rolling and moving on the cam surface 72b to the right in FIG. As a result, the parking lock pawl 72 (and the parking shaft 70) rotate in the direction of the arrow B against the urging force of the return spring 74, and the protrusion 72a provided on the parking lock pawl 72 is connected to the outer peripheral teeth of the parking gear 26. (See FIG. 6A). As a result, the countershaft 20 is locked with respect to the transmission case 5, and driving wheels (not shown) connected to the left and right axle shafts 42, 42 are fixed.
[0028]
At this time, when the protrusion 72a of the parking lock pole 72 cannot engage with the outer peripheral teeth of the parking gear 26 and rides on the outer peripheral teeth, the parking lever 82 is urged by the parking lock pole 72 in the direction of arrow D. Thus, the return spring 84 is twisted to enter a “waiting” state. After that, when the drive wheel slightly moves and the countershaft 20 rotates in the direction of arrow A or arrow B, the parking lever 82 rotates in the direction of arrow C by the urging force of the return spring 84, and the parking lock pole Since 72 is pressed in the direction of arrow B, the protrusion 72 a of the parking lock pole 72 meshes with the outer peripheral teeth of the parking gear 26.
[0029]
On the other hand, when the shift lever 100 is shifted from the “P” position to a position other than “P”, the control shaft 80 rotates in the direction of the arrow D, and the parking lever 82 is the above-described stopper provided on the control shaft 80. , And is rotated and moved (oscillated) in the direction of arrow D together with the control shaft 80. At this time, the roller portion 82 b of the parking lever 82 rolls on the cam surface 72 b of the parking lock pole 72 to the left in FIG. 6, and the parking lock pole 72 moves in the direction of arrow A by the urging force of the return spring 74. Is allowed. As a result, the protrusion 72a of the parking lock pole 72 is detached from the outer peripheral teeth of the parking gear 26 (see FIG. 6B), and the countershaft 20 is fixed to the transmission case 5 (that is, the drive connected to the left and right axle shafts 42, 42). The ring is fixed.
[0030]
Next, a power transmission path and a transmission system in the transmission 1 will be described. When the electric motor M receives power supply from the battery B and rotates the output shaft S, the rotational power is transmitted to the main shaft 10 of the transmission 1 coupled to the output shaft S, and the main gear 12 and the counter gear 22 are moved. The countershaft 20 rotates. This also causes the differential case 30 to rotate via the final drive gear 24 and the final driven gear 32, and finally the left and right drive wheels connected to the left and right axle shafts 42, 42 rotate.
[0031]
Further, the speed change in the transmission 1 is performed by changing the rotation speed of the electric motor M. The electric motor M is electrically connected to a control unit 60 provided at a predetermined position in the vehicle body. The control unit 60 is based on signals input from an accelerator opening sensor 61, a vehicle speed sensor 62, a position sensor switch 63, and the like. Then, a necessary determination is made, and control is performed to rotate the output shaft S of the electric motor M so as to obtain an optimum output for the traveling state of the vehicle. Here, the accelerator opening sensor 61 is a sensor that detects an accelerator opening (opening of a throttle valve (not shown)) caused by depression of an accelerator pedal (not shown) provided in the driver's seat of the vehicle. Is a sensor that detects the traveling speed of the vehicle from the rotational speed of the countershaft 20. The position sensor switch 63 is a sensor for detecting the current position where the shift lever 100 provided in the driver's seat is shifted. The four shift positions “P”, “R”, “N”, “D” Is output to the control unit 60.
[0032]
When the shift lever 100 is shifted to the “D” position, the position sensor switch 63 detects this and outputs a signal corresponding to the “D” position to the control unit 60. The control unit 60 that has received this signal determines a speed change characteristic determined in advance (stored in the control unit 60) based on the accelerator opening detected by the accelerator opening sensor 61 and the traveling speed of the vehicle detected by the vehicle speed sensor 62. An optimal driving force is calculated based on the drawing, and the electric motor M is controlled so that such a driving force is output. At this time, the rotation direction of the output shaft S of the electric motor M is a forward direction in which the vehicle travels forward.
[0033]
  Further, when the shift lever 100 is shifted to the “R” position, the position sensor switch 63 detects this and outputs a signal corresponding to the “R” position to the control unit 60. Receiving this signal, the control unit 60 rotates the output shaft S of the electric motor M in the reverse direction. The driving force at this time is when the shift lever 100 is shifted to the “D” position and the vehicle is traveling forward. Unlike the above, a certain predetermined value is set.This is because the vehicle speed when traveling backward is generally small,To the extent necessary at the start of drivingConstant vehicle speedThis is because it is sufficient to set.
[0034]
Further, when the shift lever 100 is shifted to the “N” position, the position sensor switch 63 detects this and outputs a signal corresponding to the “N” position to the control unit 60. Receiving this signal, the control unit 60 controls the electric motor M to be stopped. As a result, the output shaft S of the electric motor M does not apply power to the main shaft 10 and can be freely rotated by an external force.
[0035]
In the state where the shift lever 100 is shifted to the “P” position, the position sensor switch 63 detects this and outputs a signal corresponding to the “P” position to the control unit 60. Upon receiving this signal, the control unit 60 controls the electric motor M to be in a stopped state as in the case where the shift lever 100 is shifted to the “N” position. The control shaft 80 is rotated in the direction of arrow C shown in FIG. 5, the parking lock pole 72 is pressed against the parking gear 26 via the parking lever 82, and the protrusion 72 a is engaged with the outer peripheral teeth of the parking gear 26.
[0036]
Next, the wire attachment pin drop-off preventing structure applied to the transmission 1 will be described. FIG. 1 is a view showing a main part of a wire attachment pin drop-off preventing structure applied to the present transmission 1, and corresponds to a partial cross-sectional view seen from an arrow II in FIG. As shown in FIG. 1, in the present transmission 1, the control shaft 80 has a right end portion and a central portion held by a left case 5b so as to be swingable about an axis, and a left end portion of the control shaft 80 is a left case 5b. It protrudes and extends outward (to the left). Further, the control lever 90 is located at the above-mentioned portion of the control shaft 80 protruding outside the left case 5b, and the control wire 104 attached to the control lever 90 extends in a direction perpendicular to the paper surface of FIG. Is provided.
[0037]
Further, as shown in FIGS. 3A and 1, a control lever cover 110 is attached to the outer surface side of the left case 5 b so as to cover a portion of the control shaft 80 that protrudes outside the left case 5 b. . The control lever cover 110 jumps various members (the control lever 90, a bearing 126, which will be described later, a position sensor switch 63, etc.) attached to a portion of the control shaft 80 that protrudes outside the left case 5b while the vehicle is running. Provided to protect against incoming pebbles. Further, as shown in FIGS. 3A and 1 (see also FIG. 8), the control lever cover 110 is detachably attached to the left case 5b by a plurality of cover mounting bolts 112.
[0038]
The wire attachment pin 92 that connects the control lever 90 and the control wire 104 is attached in a pin attachment hole 90 a provided in the control lever 90. The pin mounting hole 90a is provided with the tip end portion of the control lever 90 extending in the axial direction of the control shaft 80. Therefore, the wire mounting pin 92 is provided extending in the control lever 90 in the axial direction of the control shaft 80.
[0039]
The wire attachment pin 92 is inserted into the pin attachment hole 90a along the axial direction of the control shaft 80 from the left case 5b side (the right side in FIG. 1) of the control lever 90. The wire attachment pin 92 is provided with a substantially disk-shaped stopper 92a having an outer shape larger than the inner diameter of the pin attachment hole 90a on one end side, and a groove portion 92b formed along the outer periphery is provided on the other end side. Yes. The connection between the control lever 90 and the control wire 104 by the wire attachment pin 92 is performed by inserting the wire attachment pin 92 into a ring-shaped metal fitting 104a provided at the end of the control wire 104 as shown in FIG.
[0040]
A clip 94 is attached to the end of the wire attachment pin 92 inserted in the pin attachment hole 90a (the end on the left side in FIG. 1). The clip 94 is provided with a hole 94a large enough to allow the wire mounting pin 92 to pass through in the center, and a locking claw 94b whose tip extends to the vicinity of the inner periphery of the hole 94a on the surface of one side. When the clip 94 is pressed against the wire mounting pin 92 so that the wire mounting pin 92 is inserted into the hole 94a, the groove claw 94b is formed on the outer periphery of the wire mounting pin 92. The wire attaching pin 92 is fixed in the pin attaching hole 90a by being locked in the 92b.
[0041]
  Further, in the present transmission 1, as shown in FIG. 1, vibration in the transmission case 5 is transmitted to the control lever cover 110 between the left case 5b and the control lever cover 110, so that the control lever cover 110 Is provided with a plate-shaped rubber sheet 130 for preventing resonance. Also, a rubber member 114 having the same effect is provided between the control lever cover 110 and the cover mounting bolt 112.Is provided. Here, the rubber sheet 130 is sandwiched between the left transmission case 5b and the control lever cover 110 and extends between the wire mounting pin 92 and the left case 5, and is clipped due to vibration from the electric motor M or other causes. When 94 is loosened and the wire mounting pin 92 is about to fall off the control lever 90, the wire mounting pin 92 comes into contact. Since the wire mounting pin 92 comes into contact with the rubber sheet 130 in this way, the wire mounting pin 92 stays in the pin mounting hole 90a of the control lever 90. As a result, the wire mounting pin 92 from the control lever 90 is Dropout (from the pin mounting hole 90a) will be prevented.
[0042]
As shown in FIG. 1, a bearing / sensor support protrusion 120 formed in the axial direction of the control shaft 80 is formed in a space 116 surrounded by the left case 5 b and the control lever cover 110. Is provided. A bearing / sensor support member 122 fixed by a fixing bolt 124 is provided at the tip of the bearing / sensor support protrusion 120, and the bearing / sensor support member 122 is provided outside the left side case 5 b of the control shaft 80. A bearing 126 is attached to hold the tip of the protruding portion so as to be swingable about the axis. The above-described position sensor switch 63 is attached to the bearing / sensor support member 122 so as to detect the current shift position of the shift lever 100 from the rotation (swing) position of the control shaft 80. .
[0043]
Here, the attachment procedure of the above components provided on the outside of the left case 5b will be described with reference to FIGS. First, the rubber sheet 130 is temporarily fixed to the left case 5b by fitting the holes 132 provided in the rubber sheet 130 into the protrusions provided in the left case 5b. At this stage, the control lever 90 is not yet attached to the control shaft 80. The protrusion on the left case 5b side into which the hole 132 on the rubber sheet 130 side is inserted is the control shaft support part 128 that holds the center part of the control shaft 80, the bearing / sensor support protrusion 120, or the like. is there.
[0044]
After the rubber sheet 130 is temporarily fixed to the left case 5 b, the control lever 90 with the control wire 104 attached is attached to the control shaft 80 by lever attachment bolts 86. When the control lever 90 is attached to the control shaft 80, the bearing / sensor support member 122 to which the bearing 126 and the position sensor switch 63 are attached is attached to the bearing / sensor support protrusion 120 by the fixing bolt 124. At this time, the end portion of the control shaft 80 is supported by the bearing 126. Finally, the control lever cover 110 is fixed to the left case 5b by the cover mounting bolt 112.
[0045]
Thus, in the control shaft wire attachment pin drop prevention structure provided in the present transmission 1, the wire attachment pin 92 attached to the control lever 90 and connecting the control shaft 80 and the control wire 104 is provided from the left case 5b side. The rubber sheet 130 installed between the left case 5b and the control lever cover 110 is positioned between the wire mounting pin 92 and the left case 5b, and is attached to the control lever 90. The pin 92 is prevented from falling off from the control lever 90. For this reason, it is not necessary to attach a dedicated part for preventing the wire attachment pin from being attached to the transmission case or the like as in the prior art. Since it is installed in between, it is much easier to install the dedicated parts (color members, etc.) than the case where it is attached to the predetermined part of the left case 5b. Can be improved. Further, since the rubber sheet 130 used here is lightweight, the weight can be reduced as compared with the conventional configuration in which the color parts are attached to the transmission case with bolts or the like.
[0046]
Here, the rubber sheet 130 is for preventing vibration transmitted from the transmission case 5 side to the control lever cover 110 side, and such a vibration reducing rubber has been conventionally used to prevent the wire attachment pin from falling off. In addition, a conventional rubber member for vibration reduction is installed for each mounting position of a bolt for attaching the control lever cover to the transmission case (corresponding to the cover mounting bolt 112 in the transmission 1). Therefore, compared with the case where a plurality of rubber members having a relatively small size are required, the transmission 1 can be handled very easily because only one large rubber sheet 130 is required. In addition, the risk of dropping the rubber sheet 130 during the temporary fixing operation to the left case 5b is much smaller than the risk of dropping the conventional small rubber member during attachment to the transmission case. Productivity can be improved. Further, since the rubber sheet 130 can be temporarily fixed to the left case 5b in advance as described above, it can be easily attached. Furthermore, since the rubber sheet 130 necessary for vibration reduction also serves as a member for preventing the wire attachment pin 92 from falling off, the number of parts can be reduced and the manufacturing process can be simplified.
[0047]
The preferred embodiments of the present invention have been described so far, but the scope of the present invention is not limited to those shown in the above-described embodiments. For example, in the above-described embodiment, the wire attachment pin that is installed between the left case 5b and the control lever cover 110 and extends between the wire attachment pin 92 and the left case 5b and is about to fall off from the control lever 90. As a member that comes into contact with 92 and prevents the wire attachment pin 92 from falling off from the control lever 90, a vibration reducing rubber sheet 130 that reduces vibration transmitted from the transmission case 5 side to the control lever cover 110 side is used. However, this does not necessarily use the rubber sheet 130, and a separate plate-like member may be provided.
[0048]
In the above-described embodiment, the rubber sheet 130 is provided with the hole 132 and is fitted into the protrusion formed on the left case 5b. However, this is not an essential requirement. However, by adopting such a configuration, the rubber sheet 130 can be temporarily fixed to the left case 5b before the control lever cover 110 is attached to the left case 5b, so that productivity and maintainability are improved. Is as described above. Further, in the above-described embodiment, the wire attachment pin 92 attached to the control lever 90 has an arrangement configuration that is separated from the rubber sheet 130 by a predetermined distance. However, this is not essential, and both the members 92 and 130 are provided. You may adopt the arrangement configuration which always contacts.
[0049]
  Further, in the above-described embodiment, the structure for preventing the wire attachment pin from falling off of the control shaft according to the present invention,Vehicle transmissionHowever, this is only an example, and may be applied to a wire control type shaft member other than the parking mechanism. Furthermore, the subject of application of the present invention isVehicle transmissionHowever, the present invention can be applied to a wire control type shaft member in other mechanical devices.
[0050]
【The invention's effect】
As described above, in the control shaft wire attachment pin drop prevention structure according to the present invention, the wire attachment pin that is attached to the lever portion of the control shaft and connects the control shaft and the wire is inserted into the lever portion from the shaft holding body side. A plate-like member installed between the shaft holder and the cover member is positioned between the wire attachment pin and the shaft holder to prevent the wire attachment pin from falling off the lever portion. It is supposed to be. For this reason, it is not necessary to attach a dedicated part for preventing the wire attachment pin from being attached to the shaft holding member or the like as in the prior art, so that the configuration is simplified and the plate-like member is interposed between the shaft holding body and the cover member. Since it is installed, the attachment becomes very easy compared with the case where the dedicated part is attached to a predetermined portion of the shaft holder, so that productivity and maintainability can be improved as compared with the conventional case. Further, since the plate-like member used here may be a thin plate, it is possible to reduce the weight as compared with the conventional configuration in which the color component is attached to the shaft holder with bolts or the like.
[0051]
In the control shaft wire attachment pin drop-off preventing structure according to the present invention, the cover member is attached to the shaft holder by fitting the hole provided in the plate-like member into the protrusion provided in the shaft holder. The plate member can be temporarily fixed to the shaft holder. If it does in this way, attachment of a plate-shaped member will become very simple, and productivity and maintainability can be improved further.
[0052]
Further, the control shaft wire attachment pin drop-off preventing structure according to the present invention can be applied to a parking mechanism of a vehicle transmission, and in this case, the shaft holder is a transmission case of the vehicle transmission. The control shaft is a shaft for swinging the parking lever that meshes the parking pole with the outer peripheral teeth of the parking gear provided in the vehicle transmission, and the plate-like member reduces vibration transmitted from the shaft holder side to the cover member side. The configuration is a rubber sheet for vibration reduction. As a result, the above-described effect can be obtained in the parking mechanism of the vehicle transmission. In this case, in particular, the rubber seat necessary for vibration reduction also serves as a member for preventing the wire attachment pin from falling off. The number of parts can be reduced, and the manufacturing process can be simplified.
[Brief description of the drawings]
FIG. 1 shows a structure for preventing a wire mounting pin from dropping according to an embodiment of the present invention.Vehicle transmissionIt is a figure which shows the principal part of the wire attachment pin drop-off prevention structure.
[Figure 2]Vehicle transmissionIt is a skeleton figure which shows the structure of.
Figure 3 (A) shows thisVehicle transmissionFIG. 5B is a side view of the transmission with the left side case removed, viewed from the left side.
FIG. 4 is a perspective view of a shift lever provided in the driver's seat of the vehicle as viewed obliquely from above.
FIG. 5 is a perspective view illustrating a member required for locking the counter shaft with the parking gear as a center.
FIG. 6Vehicle transmission(A) shows a state in which the protrusion of the parking lock pole and the outer peripheral teeth of the parking gear mesh with each other. B) shows a state in which the protrusion of the parking lock pole is detached from the outer peripheral teeth of the parking gear.
FIG. 7 is a view for explaining how to connect a control wire and a control lever by a wire mounting pin and a clip.
FIG. 8 is a diagram showing how the rubber seat and the control lever cover are attached to the transmission case in the transmission.
[Explanation of symbols]
1Vehicle transmission
5 Transmission case
5a Right case
5b left side case
10 Main shaft
20 Countershaft
26 Parking gear
63 Position sensor switch
70 Parking shaft
72 Parking lock pole
80 Control shaft
82 Parking lever
90 Control lever
92 Wire mounting pin
94 clips
104 Control wire
110 Control lever cover
126 Bearing
130 Rubber sheet

Claims (3)

A shaft holder,
A control shaft that is held by the shaft holder so as to be swingable about an axis and has one end projecting and extending outside the shaft holder, and a lever portion extending in the off-axis direction is provided on the projecting portion;
A cover member attached to the outer surface side of the shaft holder so as to cover the protruding portion of the control shaft;
A wire mounting pin that is inserted into the lever portion from the shaft holding body side and extends in the axial direction of the control shaft;
A wire that is connected to the lever portion via the wire mounting pin and swings and moves the control shaft about an axis when tension is applied;
It is installed between the shaft holder and the cover member, extends between the wire attachment pin and the shaft holder, and prevents the wire attachment pin from coming off from the lever portion by contacting the wire attachment pin. A structure for preventing a wire mounting pin from falling off a control shaft, characterized by comprising a plate-like member.   The plate-like member is temporarily fixed to the shaft holder before the cover member is attached to the shaft holder by fitting the hole provided in the plate-like member into the protrusion provided on the shaft holder. 2. The structure for preventing a wire attachment pin from falling out of a control shaft according to claim 1, wherein the structure is configured to be able to be prevented.   The shaft holder is a transmission case of a vehicle transmission, and the control shaft is a shaft for swinging a parking lever that meshes a parking pole with an outer peripheral tooth of a parking gear provided in the vehicle transmission; 3. The control shaft wire attachment pin drop-off prevention structure according to claim 1 or 2, wherein the plate-like member is a vibration reducing rubber sheet for reducing vibration transmitted from the shaft holder side to the cover member side.

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