JP2009126400A - Shift lever device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lever device capable of easily assembling a position pin before a shift lever is assembled to a base bracket, and realizing conditions advantageous in strength. <P>SOLUTION: This shift lever device comprises an inverted-U-sectioned base bracket 10 having a pair of side walls 12 and a ceiling wall 11, a shift lever body 50A swingably supported by the base bracket, a working rod inserted inside the shift lever body, a position pin 56 provided to a base end of the working rod, and a detent groove 20 provided to the base bracket. A convex wall 21 is provided inside a pair of the side walls of the base bracket. The convex wall 21 is integrally formed on both sides of the shift lever body across the side walls and the ceiling wall of the base bracket. Then, the detent groove 20 is formed on the bottom face of the convex wall. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a shift lever device for a vehicle.

  Automatic transmissions (automatic transmissions) such as automobiles have multiple ranges such as drive (D), neutral (N), reverse (R), parking (P), etc., and shift levers in each range. The shift range is selected by moving to the corresponding position.

  An example of this type of shift lever device is described in Patent Document 1, and FIGS. 4 to 6 show examples of conventional general shift lever devices of the same type.

  This shift lever device includes a box-shaped base bracket 110 that is fixed to a floor panel of a vehicle body, and a double-structure shift lever 150 that is swingably supported by the base bracket 110. The base bracket 110 is formed in an inverted U-shaped cross section having a pair of side walls 112 facing each other and a curved top wall 111 connecting between the upper ends of the pair of side walls 112.

  The double-structured shift lever 150 has a hollow shift lever main body 150A and an operating rod (compression rod) 155 inserted therein so as to freely move up and down. This is formed by connecting a circular pipe 151 on the distal end side to the rectangular tube portion 152. The shift lever main body 150 </ b> A is rocked along the side wall 112 of the base bracket 110 when selecting the shift range, and a shift slot 115 formed at the top end of the top wall 111 of the base bracket 110. It protrudes upward from. An operation knob (not shown) with a push button (operation unit) (not shown) is attached to the distal end portion of the shift lever main body 150A protruding above the base bracket 110.

  The operating rod 155 is inserted into the hollow shift lever main body 150A and is urged upward by a coil spring 159 accommodated in the lower portion of the shift lever main body 150A. Then, when a push button provided on an operation knob (not shown) is pressed, it slides downward against the urging force of the spring 159.

  Position pins 156 penetrating in the direction orthogonal to the longitudinal direction of the actuating rod 155 are provided at the base end of the actuating rod 155, and both ends of the position pin 156 are square tubes on the base end side of the shift lever main body 150A. A long hole 158 formed in the peripheral wall of the portion 152 protrudes toward the side wall 112 of the base bracket 110.

  The side wall 112 of the base bracket 110 is provided with an opening 121 as a detent gate, and the tip of the position pin 156 is inserted into the opening 121. A detent groove 120 for restricting the operation range of the shift lever 150 is formed at the upper edge of the opening 121. The tip of the position pin 156 urged upward together with the operating rod 155 by the spring 159 is When the push button is not operated, the detent groove 120 is engaged by the upward biasing force of the spring 159. Further, when the operating rod 155 is lowered by the operation of the push button, it is detached from the detent groove portion 120.

In addition to the above-described configuration, this shift lever device is equipped with a mechanism that electrically detects, for example, the shift position selected by the operation position of the shift lever 150. Further, a cover member 130 that covers the upper surface of the base bracket 110 is provided, and the cover member 130 is also provided with a shift long hole 133. A detent damper 132 is attached to the side wall 112 of the base bracket 110 in order to reduce the hitting sound when the position pin 156 contacts the groove bottom of the detent groove 120.
JP-A-8-14374

  As described above, in the conventional shift lever device, the position pin 156 that follows the shift lever 150 is inserted into the opening (detent gate) 121 formed in the side wall 112 of the base bracket 110, and the upper edge of the opening 121 is inserted. Since the position of the shift lever 150 is regulated by engaging with the detent groove 120 formed in the above, the length of the position pin 156 can be inserted to the opening 121 of the side wall 112, that is, It is necessary to set the dimension larger than the inner width dimension between the side walls 112 of the base bracket 110. Therefore, after the shift lever 150 is assembled to the base bracket 110, the position pin 156 must be assembled to the shift lever 150. In this case, the position pin 156 and jigs do not interfere with the detent groove 120. Assembling work was also necessary, and the assembling workability was poor.

  Moreover, since the opening part 121 is provided in the side wall 112 of the base bracket 110 and the detent groove part 120 is formed on the upper edge of the opening part 121, the strength of the side wall 112 is weakened by the presence of the large opening part 121. This is disadvantageous in increasing the strength of the base bracket 110.

  In view of the above circumstances, the present invention provides a shift lever device that can easily perform the position pin assembly work before assembling the shift lever to the base bracket, and that can realize advantageous conditions in terms of strength. The purpose is to do.

  The invention according to claim 1 has a pair of side walls facing each other and a top wall connecting between the upper ends of the pair of side walls, a base bracket having an inverted U-shaped cross section fixed to a vehicle body, and the side wall on the base bracket. And a hollow shift lever main body that is supported so as to be swingable along the top wall and protrudes upward from a shift long hole formed in the top wall in the longitudinal direction of the shift lever main body. A rod-like actuating rod inserted movably, a position pin protruding toward the side wall at the base end of the actuating rod, and movably provided along the longitudinal direction of the shift lever body; and the position pin; And a detent groove formed in the base bracket so as to be freely disengageable in a swinging direction of the shift lever body. Provided convex walls inside the pair of side walls of the scan bracket, characterized in that the formation of the detent grooves on the lower surface or upper surface of the convex wall.

  Invention of Claim 2 is the shift lever apparatus of Claim 1, Comprising: The said convex wall was provided in the inner surface of the ceiling wall of the said base bracket, and the said detent groove part was formed in the lower surface of this convex wall. Features.

  A third aspect of the present invention is the shift lever device according to the second aspect, wherein the convex wall is integrally provided across the side wall and the top wall of the base bracket, and the detent is formed on a lower surface of the convex wall. A groove is formed.

  According to a fourth aspect of the present invention, in the shift lever device according to the second or third aspect, the position pin of the detent groove portion extends through the top wall in a cover member that covers the top surface of the top wall of the base bracket. A detent damper is provided that protrudes to a portion where the abutment comes into contact.

  According to the first aspect of the present invention, the convex wall is provided inside the pair of side walls of the base bracket, and the detent groove is formed on the lower surface or the upper surface of the convex wall. It can fit within the inner width dimension between both side walls. For this reason, the shift lever can be assembled to the base bracket after the position pin is first assembled to the shift lever (including the shift lever main body and the operating rod), and the assembling workability can be improved. Further, since it is not necessary to provide a large opening for forming the detent groove on the side wall of the base bracket, a structure advantageous in strength can be obtained.

  According to the invention of claim 2, since the convex wall is provided on the inner surface of the top wall of the base bracket and the detent groove is provided on the lower surface of the convex wall, in addition to the effect of the invention of claim 1, the following effect is obtained. Can be played. In other words, the engagement position between the detent groove and the position pin can be set at a position far from the swinging fulcrum of the shift lever, so that even if some external force acts on the shift lever, it is an advantageous condition in terms of moment. Can be. Therefore, the force acting on the engagement portion between the detent groove and the position pin can be reduced, which can contribute to the improvement of the strength.

  According to the invention of claim 3, since the convex wall having the detent groove portion is integrally provided across the side wall and the top wall of the base bracket, the strength of the detent groove portion can be improved, and the convex wall The connecting portion between the top wall and the side wall can be reinforced, and the rigidity of the base bracket can be increased.

  According to the invention of claim 4, the detent damper is formed integrally with the cover member that covers the top surface of the top wall of the base bracket, and the detent damper is arranged by assembling the cover member. The damper can be easily installed, and the assembly workability can be improved.

  Embodiments of the present invention will be described below with reference to the drawings. 1 is an exploded perspective view of the shift lever device of the embodiment, FIG. 2 is a side view of the shift lever device, and FIG. 3 is a sectional view taken along the line III-III in FIG.

  This shift lever device includes a box-shaped base bracket 10 that is fixed to a floor panel of a vehicle body, and a double-structure shift lever 50 that is swingably supported by the base bracket 10. The base bracket 10 is formed in an inverted U-shaped cross section having a pair of side walls 12 facing each other and a curved top wall 11 connecting the upper ends of the pair of side walls 12. Further, it has a fixing flange 13 and a lever support portion 14 with a bearing hole 14a for mounting the shift lever 50 in a swingable manner.

  The double-structured shift lever 50 has a hollow shift lever main body 50A and an operating rod (compression rod) 55 inserted therein so as to be movable up and down. The shift lever main body 50A has a base end side. It is comprised by connecting the circular pipe 51 of the front end side to the square cylinder part 52 of this.

  The shift lever main body 50 </ b> A is rocked along the side wall 12 of the base bracket 10 when selecting a shift range, and a shift slot 15 having a tip portion formed in the top wall 11 of the base bracket 10. It protrudes upward from. An operation knob (not shown) with a push button (operation unit) (not shown) is attached to the distal end portion of the shift lever main body 50A protruding above the base bracket 10.

  Further, a boss portion 53 with a bearing hole 53a is provided at the lower end of the rectangular tube portion 52 constituting the shift lever body 50A, and the bearing hole 53a of the boss portion 53 and the bearing of the lever support portion 14 of the base bracket 10 are provided. By allowing the shaft 60 to pass through the hole 14a, the shift lever main body 50A is supported so as to be swingable about the shaft 60 disposed at the lower end of the base bracket 10.

  The rod-shaped operating rod 55 inserted into the hollow shift lever main body 50A so as to be movable in the longitudinal direction of the shift lever main body 50A is urged upward by a coil spring 59 housed in the lower part of the shift lever main body 50A. . A push button provided on an operation knob (not shown) is pressed to slide downward against the urging force of the spring 59.

  A position pin 56 projects from the base end of the actuating rod 55 in a direction perpendicular to the longitudinal direction of the actuating rod 55 (diameter direction of the actuating rod 55) and is movable together with the actuating rod 55 in the longitudinal direction of the shift lever body 50A. Both ends of the position pin 56 protrude toward the side wall 12 of the base bracket 10 from a long hole 58 formed in the peripheral wall of the rectangular tube portion 52 on the base end side of the shift lever body 50A.

  On the other hand, convex walls 21 are integrally provided on both upper sides of the shift lever main body 50 </ b> A inside the side wall 12 of the base bracket 10 so as to straddle the both side walls 12 and the top wall 11 of the base bracket 10. And the detent groove part 20 which controls the operation range of the shift lever main body 50A is formed in the lower surface of each convex wall 21 by the edge part of the position pin 56 engaging. The detent groove 20 is formed so as to be freely disengageable in the swinging direction of the position pin 56 and the shift lever main body 50 </ b> A. When the push button of the operation knob is not operated, the tip of the position pin 56 faces upward by the spring 59. When the push button is operated by engaging with the detent groove 20 by the urging force, the position pin 56 moves down together with the actuating rod 55 so that the detent groove 20 is detached.

  An upper surface damper 30 as a cover member is placed on the upper surface of the top wall 11 of the base bracket 10. The base plate portion 31 of the upper surface damper 30 is also provided with a shift elongated hole 33 through which the shift lever 50 passes. A pair of projecting pieces 32 projecting downward are provided on the lower surface of the base plate portion 31 as detent dampers. ing. The tips 32a of the projecting pieces 32 pass through the slits (holes) 16 formed in the top wall 11 of the base bracket 10, and the neutral position front surface and the reverse position upper surface of the detent groove portion 20 are in contact with the position pin 56. The protruding portion 21 is slightly protruded so as to come into contact with the protruding wall 21, and the protruding portion is configured to reduce the hitting sound when the position pin 56 hits. Further, the detent damper can be changed in accordance with the position of the slit (hole) 16, the shape of the projecting pieces 32, and the position position provided by changing the number thereof.

  In addition to the above configuration, this shift lever device is equipped with a mechanism for electrically detecting, for example, the shift position selected by the operation position of the shift lever 50. Further, the side wall 12 and the top wall 11 of the base bracket 10 are provided with punching holes 17 and 18 that are minimum necessary for forming the internal detent groove 20.

  As described above, according to the shift lever device of the embodiment, the convex wall 21 is provided inside the pair of side walls 12 of the base bracket 10, and the detent groove portion 20 is formed on the lower surface of the convex wall 21. The length of the position pin 56 can be accommodated within the inner width dimension between the both side walls 12 of the base bracket 10 as shown in FIG. Therefore, the shift lever 50 can be assembled to the base bracket 10 after the position pin 56 is first assembled to the shift lever 50 (consisting of the shift lever main body 50A, the operation rod 55, etc.), and the assembly workability is improved. Can be planned.

  In addition, unlike the conventional example shown in FIGS. 4 to 6, it is not necessary to provide a large opening for forming the detent groove 20 on the side wall 12 of the base bracket 10. Can do.

  Since the convex wall 21 is provided on the inner surface of the top wall 11 of the base bracket 10, the engagement position between the detent groove 20 and the position pin 56 is set at a position far from the swing fulcrum (shaft 60) of the shift lever 50. Therefore, even when some external force is applied to the shift lever 50, it is possible to make an advantageous condition on the moment. Therefore, the force acting on the engagement portion between the detent groove portion 20 and the position pin 56 can be reduced, and the strength can be improved.

  Further, in the shift lever device of the present embodiment, the convex wall having the detent groove portion 20 is integrally provided across the side wall 12 and the top wall 11 of the base bracket 10, so that the strength of the detent groove portion 20 is improved. In addition, the connecting portion between the top wall 11 and the side wall 12 can be reinforced by the convex wall 21 and the rigidity of the base bracket 10 can be increased.

  Further, the convex walls 21 having the detent groove portions 20 are provided on both sides of the shift lever main body 50A, and both ends of the position pin 56 are engaged with the detent groove portions 20, so that the operation range of the shift lever 50 is regulated in a balanced manner. It can be performed. Further, by providing convex walls on both sides of the shift lever body 50A, the rigidity of the base bracket can be further increased.

  Further, in the shift lever device of the present embodiment, the projecting piece 32 that is a detent damper is formed integrally with the upper surface damper 30 that covers the upper surface of the top wall 11 of the base bracket 10, and the slit 16 of the top wall 11 of the base bracket 10 is formed. Since the detent damper can be disposed in the apparatus simply by inserting the projecting piece 32, the detent damper can be easily installed, and the assembling workability can be improved.

  In the above embodiment, the case where the convex walls 21 having the detent groove portions 20 are provided on both sides of the shift lever main body 50A is shown, but the convex walls 21 having the detent groove portions 20 are provided only on one side of the shift lever main body 50A. And only one end portion of the position pin 56 may be engaged with the detent groove portion 20.

  Moreover, in the said embodiment, although the case where the convex wall 21 which has the detent groove part 20 was formed ranging over the side wall 12 and the top wall 11 of the base bracket 10 was shown, only the inner surface of the side wall 12 or the inner surface of the top wall 11 was shown. The convex wall 21 may be provided so as to be integrated with each other.

  Moreover, in the said embodiment, while forming the convex wall 21 in the inner surface of the top wall 11 of the base bracket 10, the detent groove part 20 is formed in the lower surface of the convex wall 21, and the position pin 56 is made into the detent groove part from the downward side. 20, the convex wall 21 is provided below the side wall 12, the detent groove portion 20 is formed on the upper surface of the convex wall 21, and the position pin 56 is formed on the detent groove portion 20 from above. It can also be configured to engage. In that case, the actuating rod 55 may be urged downward by the spring, and the actuating rod 55 may be moved upward against the urging force of the spring when the push button is operated.

It is a disassembled perspective view of the shift lever apparatus of embodiment of this invention. It is a side view of the shift lever device. FIG. 3 is a cross-sectional view taken along the line III-III in FIG. 2. It is a disassembled perspective view of the conventional shift lever apparatus. It is a side view of the shift lever device. It is VI-VI arrow sectional drawing of FIG.

Explanation of symbols

12 Side wall 11 Top wall 10 Base bracket 15 Shift long hole 50A Shift lever body 55 Actuating rod 56 Position pin 20 Detent groove 21 Convex wall 30 Cover member (upper surface damper)
32 Projection (detent damper)

Claims (4)

A pair of side walls facing each other and a top wall connecting the upper ends of the pair of side walls, and a base bracket having an inverted U-shaped cross section fixed to the vehicle body;
A hollow shift lever main body supported by the base bracket so as to be swingable along the side wall and having a tip projecting upward from a shift long hole formed in the top wall;
A rod-shaped operating rod inserted into the shift lever body so as to be movable in the longitudinal direction of the shift lever body;
A position pin that protrudes toward the side wall at the base end of the actuating rod and is movable along the longitudinal direction of the shift lever body;
A detent groove formed in the base bracket, which is detachably formed in a swinging direction of the position pin and the shift lever body;
In the shift lever device comprising:
A shift lever device, wherein a convex wall is provided inside a pair of side walls of the base bracket, and the detent groove portion is formed on a lower surface or an upper surface of the convex wall. The shift lever device according to claim 1,
Providing the convex wall on the inner surface of the top wall of the base bracket;
A shift lever device, wherein the detent groove is formed on the lower surface of the convex wall. The shift lever device according to claim 2,
The convex wall is provided integrally across the side wall and the top wall of the base bracket,
A shift lever device, wherein the detent groove is formed on the lower surface of the convex wall. The shift lever device according to claim 2 or 3,
A shift lever device characterized in that a detent damper is provided on a cover member that covers the top surface of the top wall of the base bracket and protrudes through a portion of the detent groove that contacts the position pin through the top wall.

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