JP4666979B2 - Key interlock structure of gate type shift lever device - Google Patents

Description

  The present invention relates to a key interlock structure of a gate type shift lever device of an automatic transmission that performs a shift operation by moving a shift lever along a gate groove formed in a step shape.

  The engine key can be moved to the extraction position or the OFF position in the key lock unit only when the shift lever in the automobile shift lever device is in the P position, and the shift lever cannot be moved from the P position unless the engine key is in the ON position. Patent Documents 1 and 2 describe a gate type A / T shift lever device provided with a key interlock mechanism.

The shift lever in the gate type A / T shift lever device is normally urged in the lateral direction so as to enter the P position, and the urging force is used to operate the lever connected to the cable and to move the shift lever from the P position. When taking out, it returns to the original position by the urging force of the spring provided in this lever. When the shift lever is not in the P position, the shift lever is held at the original position by the biasing force of the spring provided on the lever. Therefore, the key interlock is performed by pushing and pulling the cable provided between the shift lever device and the key lock device. Depending on the arrangement (routing) of this cable, the sliding resistance becomes heavy or the sliding The speed is slow.
JP 2001-18675 A JP 2003-63269 A

  In the above prior art, there is a design demand to increase the pushing / pulling force of the cable. However, if the spring force for operating the cable is increased, the spring force (for example, P) It is necessary to increase the force for automatically returning from the select position to the P-lock position. As a result, there is a problem that the select operation force becomes heavy and the operation feeling deteriorates.

  Accordingly, the present invention seeks to obtain a gate type shift lever device for an automatic transmission having a key interlock structure in which the pushing and pulling force of a cable is increased without deteriorating the feeling in normal operation. .

According to the first aspect of the present invention, the front / rear swing base is supported by the housing fixed to the vehicle body so as to be swingable in the longitudinal direction of the vehicle body, and is supported by the front / rear swing base so as to be swingable in the lateral direction of the vehicle body. A shift lever is fixed to the left and right swing base, and this shift lever penetrates a stepped gate groove formed in the upper part of the housing and a shift knob is attached to the upper part, and the shift lever is moved along the gate groove. In the key interlock mechanism of the gate type shift lever device that performs the shift operation and performs the key interlock by linking with the key lock device,
The key interlock mechanism includes a key lock lever that pushes and pulls a cable linked to the key lock device, and the key lock lever is engageable with the left / right swing base when the shift lever is in the P position. And has a free end, and is urged to rotate in a direction to move the engaged left / right swing base from the P select position to the P lock position,
A flange portion is formed in an arc portion having a predetermined radius centered on the rotation axis of the front and rear swing base portion,
When the shift lever is in a position other than the P position, the flange portion prevents the key lock lever from rotating by slidingly contacting a stopper pin provided on the key lock lever, and the shift lever moves to the P position. When the stopper pin is disengaged from the flange portion, the key lock lever presses the left / right swing base portion to move the shift lever from the P select position to the P lock position, and shifts against this pressing force. A key interlock structure for a gate type A / T shift lever device, wherein a stopper pin of the key lock lever is pushed back to a position where it can be slidably contacted with the flange portion by moving the lever to a P select position. It was.

  According to a second aspect of the present invention, the key lock lever includes a first lever that includes a stopper pin that can slide in contact with the flange portion, and a free end portion that presses the left and right rocking base, and the first lever. A second lever that can rotate coaxially, a first coil spring that urges the first lever and the second lever to close so that the first lever and the second lever rotate together at a predetermined angle, and a cable that links the key lock device. The third lever is connected to the free end, and is configured to be engaged with the second lever so that the first lever is in a direction of pressing the left and right rocking base, and the third lever is configured as the second lever. 2. A gate type shift lever according to claim 1, wherein a second coil spring that rotationally biases in a direction to engage with the first coil spring is made stronger than a spring force of the second coil spring. It was and apparatus key interlock structure.

  According to a third aspect of the present invention, the first lever, the second lever, the first coil spring, the third lever, and the second coil spring are provided on the unit base, and the unit base is attached to the housing. The key interlock structure of the gate type shift lever device according to Item 2.

  According to the present invention, when the shift lever is moved from the P select position to the P lock position, the cable is moved by the urging force of the key lock lever, and the shift lever is moved from the P lock position to the P select position. Since the cable is moved by the force of the person operating the shift lever, the pushing / pulling force of the cable can be increased regardless of the spring force that urges the shift lever in the horizontal direction. Therefore, even if the pushing and pulling force of the cable is increased, the biasing force of the shift lever in the sideways tilt direction other than the P position does not change, and it can be set to a strength suitable for the shift operation. Can be better.

  Moreover, even when the key lock mechanism is in an OFF state, a forcible release mechanism that allows the shift lever to be forcibly moved from the P position may be provided. In this case, the second and third levers do not move, but the shift lever can be moved from the P position by pushing the first lever and expanding the first coil spring to move. Can do.

  Furthermore, since the key interlock mechanism is unitized, the assemblability of the shift lever device is improved and the size can be reduced.

  The gate type shift lever device of the present invention has a fan-shaped flange portion formed on the front and rear swing base portion of the shift lever supported by the housing fixed to the vehicle body, and a key lock lever that can be contacted and separated from the left and right swing base portion. A key interlock mechanism that is urged to rotate is assembled to the housing.

  FIG. 1 is an exploded perspective view of a gate type shift lever device for an automatic transmission according to an embodiment of the present invention. In the figure, 1 is a shift lever unit, 2 is a shift lock unit, and 3 is a key interlock mechanism. The key interlock unit 4 is an indicator unit, and these are assembled to a housing 5 fixed to the vehicle body.

  The shift lever unit 1 has a shaft portion 1 a that is loosely fitted in the bearing hole 5 a of the housing 5, and can swing back and forth in the vehicle body longitudinal direction, and the vehicle body lateral direction through the shaft pin 7 on the base portion 11. The base 12 is integrated with the base 11 and can swing back and forth together. The forward / backward swing base portion 11 includes a transmission cable connecting lever 8, a cylindrical shaft portion 1b for pivotally supporting the left / right swing base portion 12, a corrugated moderation portion 1c that creates a moderation feeling during shifting, and a left / right swing base portion 12 A convex flange 1d for fixing a switch for detecting swing and a circular arc portion having a predetermined radius centered on the rotating shaft 1a, and a fan-shaped flange portion 1e that covers a range position other than the P position of the gate groove 41 are formed. (See FIG. 5 and FIG. 8). A spring piece fixed inside the housing 5 is in sliding contact with the moderation portion 1c. The outer side of the flange part 1e is formed in the smooth circular arc surface lower than the flange part 1e.

  On the other hand, the left and right swing base 12 is formed with a pivotal support portion 1f for inserting a shaft bolt 7 fixed with a nut, and the lower end portion of the shift lever 9 is fixed, and the moderation portion 1c of the front and rear swing base 11 is fixed. A hook portion 1h that protrudes in the left-right direction of the vehicle body and a protrusion portion 1j that protrudes horizontally on the front side of the vehicle body are provided outside the box portion 1g that fits into the recess between the flange portions 1e. A cylindrical portion 1k for forming the coil is integrally formed, and a coil spring 1m, a cylindrical seat 1n, and a ball 1p are inserted into the cylindrical portion 1k. The ball 1p slidably contacts a moderation portion formed on the inner surface of the housing 5, and applies a biasing force in a direction in which the shift lever 9 is tilted to the left in FIG. A shift knob 10 is attached to the upper end portion of the shift lever 9.

  The hook portion 1h of the left and right swing base portion 12 is engaged with and disengaged from the hook portion 2a of the shift lock unit 2. In this shift lock unit 2, the lock lever 13 having the hook portion 2a enters and exits from the side hole 5b of the housing 5. The plunger 15a of the electromagnetic actuator 15 supported by the unit base 14 at the shaft portion 2b and connected to the projection 2c formed near the shaft portion 2b is electrically disconnected when the shift lever 9 is at the P-lock position. Therefore, the lock lever 13 is rotated about the shaft portion 2b and is rotated inward of the side hole 5b by pushing up with the force of the built-in spring, and the hook portion 2a is It engages with the hook portion 1h of the left / right swing base portion 12 to stop the movement of the shift lever unit 1 including the base portions 11 and 12 during parking. The electromagnetic actuator 15 operates to retract the plunger 15a when the electric power is applied by depressing the brake pedal with the engine key in the ON position, and the hook portion 2a is detached from the hook portion 1h. .

  The protrusion 1j of the left and right rocking base 12 engages with the free end of the first lever 16 that is spring-biased in the key interlock unit 3 when the shift lever 9 is in the P position of the gate groove 41. In the interlock unit 3, a first lever 16 is freely loosely fitted on a shaft portion 18 hanging from a horizontal portion of an L-shaped unit base 17 having a vertical portion and a horizontal portion. The second lever 20 is freely loosely fitted to the 16 cylindrical shafts 19, and the end portions of the stopper pin 22 that also serves as the spring hooking protrusion 21 of the first lever 16 and the spring hooking protrusion of the second lever 20 are provided. And a coil spring 23 that locks and urges the two in the closing direction.

  The first lever 16 is formed with a horizontal projection 24 that can be engaged with the projection 1j and a stopper pin 25 that hangs parallel to the stopper pin 22 on the free end side, and a horizontal pin on the rotation base side. Directional protrusions 26 are formed. When the shift lever 9 is in a position other than the P position, the stopper pin 25 is located on the outer side (left side in the figure) of the flange part 1e and is in sliding contact with the flange part 1e, and the first lever is moved clockwise in the figure. It is held so as not to rotate. The protrusion 26 is in contact with the protrusion 27 formed on the upper surface side of the second lever 20 and holds the first lever 16 and the second lever 20 urged by the force of the coil spring 23 at a predetermined angle, whereby the first lever 16 and the second lever 20 usually rotate integrally.

  Then, a third lever 30 that is rotatable by loosely fitting a cylindrical shaft 29 to a shaft portion 28 that protrudes laterally from the vertical portion of the unit base 17, and a spring hooking protrusion 31 that protrudes laterally from the vertical portion, The third lever 30 includes a coil spring 33 that locks the end portion of the spring hooking protrusion 32 that protrudes from the front side of the third lever 30, and a stopper pin 34 is formed on the back side of the third lever 30. Is extended from the opening 35 formed in the vertical portion toward the horizontal portion and is brought into contact with the stopper pin 22 of the second lever 20. A cable connecting shaft 36 for connecting the other end of the cable having one end connected to the key lock device is formed at the free end of the third lever 30. The force of the coil spring 33 is smaller than the force of the coil spring 23, and the coil spring 33 forcibly presses the shift lever 9 to the P lock position (the left side in the figure) which is the innermost position of the P groove of the gate groove 41. Have power.

  The interlock unit 3 is inserted into the inside through an opening 5e formed in the front side surface of the housing 5 and the upper and lower portions of the vertical portion are fastened to the side wall portion of the housing 5 with screws 37, respectively. A rib is formed in the horizontal direction of the unit base 17 in the longitudinal direction, and an end is engaged with an opening formed in the side wall on the opposite side of the housing 5.

  The indicator unit 4 has a gate groove 41 formed in a box-shaped unit base 40, and a range display section 42 formed on the side thereof. The unit base 40 is fixed by engaging legs 43 formed at the four corners thereof with the indicator mounting portion 5 d of the housing 5. A cover 45 having a gate groove is fixed to the gate portion 5 c formed on the upper surface of the housing 5. A slide plate 44 is interposed between the cover 45 and the unit base 40 so as to pass through the shift lever 9 so as to be slidable in the longitudinal direction of the vehicle body.

  Next, in the gate type shift lever device having the above configuration, when the shift lever 9 is in the P position, as shown in FIG. 2, the protrusion 1j of the left and right swing base 12 of the shift lever unit 1 is the key interlock unit. 3 is pressed by the protrusion 24 of the first lever 16 and moved from the P select position of the gate groove 41 to the P lock position (the deepest part). In this state, the shift lever 9 is initially pressed to the innermost part of the P position by the force of the coil spring 33.

  Therefore, the third lever 30 is rotated in the clockwise direction by the force of the coil spring 33 so that the cable connecting shaft 36 moves to the front side of the vehicle body and is stationary in the direction of pushing the key interlock cable. Therefore, the engine key can be pulled out from the key lock unit. Further, the hook portion 1h of the left / right swing base portion 12 of the shift lever unit 1 is engaged with the hook portion 2a of the shift lock unit 2 so that the shift lock is achieved.

  Therefore, in order to start the vehicle, when the engine key is inserted into the key lock device and turned ON, and the brake pedal is depressed, the hook portion 2a of the shift lock unit 2 is separated from the hook portion 1h of the shift lever unit 1, The shift lever 9 is moved at the P position of the gate groove 41 from the P lock position on the left side of the vehicle body shown in FIG. 2 (state shown in FIG. 3) to the P select position on the right side of the vehicle body shown in FIG. be able to.

  Therefore, as shown in FIG. 4, when the shift lever 9 is moved to the right side of the vehicle body, the protrusion 1j pushes and moves the protrusion 24 of the first lever 16, thereby rotating the first lever 16 counterclockwise. Then, the second lever 20 integrated with the first lever is rotated by the coil spring 23, and the stopper pin 22 moves the stopper pin 34 of the third lever 30 to rotate the third lever 30 counterclockwise. Let Therefore, the cable connecting shaft 36 moves to the rear side of the vehicle body and pulls the cable. Therefore, the engine key in the key lock device can no longer be pulled out. At this time, as shown in FIGS. 5 to 6, the stopper pin 25 of the first lever 16 is located on the start end side of the flange portion 1 e formed on the front and rear swing base portion 11 of the shift lever unit 1.

  Therefore, when the shift lever 9 is shifted and operated to the R position or the N position, as shown in FIGS. 7 to 8, the front and rear swing base 11 is rotated and the flange portion 1e is moved to the rear side of the vehicle body. Therefore, the stopper pin 25 is always located outside the flange portion 1e except for the P position. That is, since the stopper pin 25 is restrained from moving in the left-right direction of the vehicle body by the flange portion 1e, the first lever 16 is restrained from rotating by the force of the coil spring 33. Therefore, the third lever 30 maintains the state in which the stopper pin 22 of the second lever 20 rotates the stopper pin 34 counterclockwise, so that the engine key cannot be removed from the key lock device. At this time, since the force of the coil spring 33 does not act on the shift lever 9, only the force in the lateral direction due to the ball 1 p and the moderation portion of the housing 5 acts on the shift lever 9 to prevent the operation feeling from being lowered. Yes.

  When the shift lever is shifted to the P position after the vehicle travels and stops, the front / rear swing base 11 rotates and the flange portion 1e moves to the front side of the vehicle body, so that the stopper pin 25 moves to the flange portion 1e. In order to return to the starting end side, the restraint is released, and therefore, the first lever 16 rotates clockwise by the force of the coil spring 33, and the protrusion 24 abuts against the protrusion 1j to move the shift lever 9 to the P lock position. As it moves, the third lever 30 rotates clockwise. Therefore, since the cable connecting shaft 36 moves to the front side of the vehicle body and pushes the interlock cable, the engine key can be removed. Since the hook portion 2a of the shift lock unit 2 engages with the hook portion 1h of the left / right swing base portion 12 to perform the shift lock, the shift lever 9 cannot be moved from the P lock position.

  When the vehicle key is pressed in the event of an urgent necessity without the engine key (keyless), the end of the release lever 43 pushes the projection 2c by pushing the release lever 43 with a tool or the like, and the shift lock unit Since the second lock lever 13 rotates outward and the hook portion 2a is disengaged from the hook portion 1h, the shift lever 9 is forcibly moved to the right side of the vehicle body as shown in FIG. Although the third lever 30 is linked to the key lock device and cannot rotate, the first lever 16 can move away from the protrusion 27 of the second lever 20 because the protrusion 26 of the first lever 16 can move away from the protrusion 27 of the second lever 20. Is rotated counterclockwise against the force of the coil spring 23 so that the stopper pin 25 faces the start end side of the flange portion 1e and the shift lever 9 is moved to a position other than the P position. By shifting the position, you can move the vehicle stopper pin 25 is located outside of the flange portion 1e. At this time, the first lever 16 can rotate independently of the second lever 20 via the coil spring 23, so that the third lever 30 and the cable are not damaged due to an excessive load.

  If it is not necessary to provide the forced release structure, a cable may be directly connected to the first lever 16, and the first lever 16 and the second lever 20 may be configured integrally. May be.

It is a disassembled perspective view of the gate type shift lever apparatus concerning this invention. It is a perspective view which extracts and shows the principal part of FIG. 1 in the parking state in which a shift lever is in a P position. It is a perspective view which shows operation | movement of the principal part. It is a perspective view which shows operation | movement of the principal part. It is a side view which shows operation | movement of the shift lever unit and key interlock unit in P position. FIG. 6 is a plan view of FIG. 5. It is a side view which shows operation | movement of the shift lever unit and key interlock unit in positions other than P position. FIG. 8 is a plan view of FIG. 7. It is a perspective view which shows operation | movement of the shift lever unit and key interlock unit at the time of keyless.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Shift lever unit 1e ... Flange part 1j ... Projection part 2 ... Shift lock unit 3 ... Key interlock unit 4 ... Indicator unit 5 ... Housing 5a ... Bearing hole 5b ... Side hole 5c ... Gate part 5d ... Indicator attaching part 5e ... Opening 7 ... Shaft bolt 8 ... Transmission cable connecting lever 9 ... Shift lever 10 ... Shift knob 11 ... Front / rear swing base 12 ... Left / right swing base 16 ... First lever (key lock lever)
17 ... Unit base 18 ... Shaft protrusion 19 ... Tube shaft 20 ... Second lever (key lock lever)
21, 28, 31, 32 ... spring-hanging projections 22, 25, 34 ... stopper pins 23, 33 ... coil springs 24, 26, 27 ... projections 29 ... cylindrical shaft 30 ... third lever (key lock lever)
35 ... opening 36 ... shaft for cable connection

Claims (3)

A front / rear swing base is supported by a housing fixed to the vehicle body so as to be swingable in the longitudinal direction of the vehicle body, and a shift lever is fixed to the left / right swing base supported by the forward / backward swing base portion so as to be swingable in the lateral direction of the vehicle body. The shift lever penetrates the stepped gate groove formed in the upper part of the housing, and a shift knob is attached to the upper part. The shift lever is moved along the gate groove to perform a shift operation, and is connected to the key lock device. In the key interlock mechanism of the gate type shift lever device that performs key interlock by linkage,
The key interlock mechanism includes a key lock lever that pushes and pulls a cable linked to the key lock device, and the key lock lever is engageable with the left / right swing base when the shift lever is in the P position. And has a free end, and is urged to rotate in a direction to move the engaged left / right swing base from the P select position to the P lock position,
A flange portion is formed in an arc portion having a predetermined radius centered on the rotation axis of the front and rear swing base portion,
When the shift lever is in a position other than the P position, the flange portion prevents the key lock lever from rotating by slidingly contacting a stopper pin provided on the key lock lever, and the shift lever moves to the P position. When the stopper pin is disengaged from the flange portion, the key lock lever presses the left / right swing base portion to move the shift lever from the P select position to the P lock position, and shifts against this pressing force. A key interlock structure for a gate type A / T shift lever device, wherein a stopper pin of the key lock lever is pushed back to a position where it can be slidably contacted with the flange portion by moving the lever to a P select position. .   The key lock lever includes a stopper pin that is slidably contactable with the flange portion, a first lever that has a free end portion that presses the left-right swing base portion, and a first lever that is rotatable coaxially with the first lever. The two levers, the first coil spring that biases the first lever and the second lever so as to rotate integrally with a predetermined angle, and the cable linked to the key lock device are connected to the free end. And a third lever that can be engaged with the second lever so that the first lever is in a direction to press the left and right swing base, and the third lever is rotated in a direction to engage with the second lever. 2. A key interface for a gate type shift lever device according to claim 1, wherein a second coil spring for biasing is provided and the spring force of the first coil spring is made stronger than the spring force of the second coil spring. Lock structure. 3. The gate type according to claim 2, wherein the first lever, the second lever, the first coil spring, the third lever, and the second coil spring are provided on a unit base, and the unit base is attached to a housing. Key interlock structure of shift lever device.

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