JPH04107560U - Automatic transmission shift lever device - Google Patents

Abstract

(57) [Summary] [Objective] To provide a shift lever device for an automatic transmission that can prevent collision noise generated when changing the position of a shift lever and improve durability. [Structure] When the locking means 19 is moved from the release position side to the locking position by the biasing force of the return spring 14 due to rotation of the shift lever 1, the buffer member 22 moves the locking means 19
It is sandwiched between the contact member 20 on the side and the stopper 21 on the guide means 3 side. The buffer member 22 compressed in this way is
Since the energy of the return spring 14 is absorbed, collision noise can be prevented from occurring. Further, since abrasion of the contact member 20 is prevented, durability can also be improved.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

The present invention relates to the structure of a shift lever device for an automatic transmission for an automobile.

0002

[Conventional technology]

As a conventional shift lever device of this kind, for example, there is a shift lever device as shown in FIGS. 3 to 5. There is something.

0003 1 is the shift lever of an automatic transmission, and the shaft 2 is fixed to the rear surface of the lower end and faces in the left and right direction. movement of a locking means 19 which is pivotally mounted on the vehicle body (not shown) and will be described later. A cylindrical body 3 facing in the vertical direction constituting a guide means for guiding the It consists of a substantially T-shaped knob 4 fixed thereto.

0004 A substantially horizontal guide hole 5 opening toward the left is bored in the upper part of the knob 4. A push button 6 is fitted into the guide hole 5 so as to be freely retractable.

[0005] A compression coil spring 7 is installed between the inner end surface of the guide hole 5 and the right end of the push button 6. The compression coil spring 7 allows the push button 6 to move closer to the knob 4. It is constantly biased in the direction of protrusion.

[0006] Near the right end of the push button 6, there is a locking surface 8a that is substantially perpendicular and a locking surface 8a that is inclined upwardly to the right. An engagement hole 8 having a convex curved surface 8b is formed.

[0007] The center of the knob 4 has an upper end that communicates with the middle part of the guide hole 5 and a lower end that communicates with the upper part of the cylinder body 3. A vertical hole 9 is formed that communicates with the end, and inside this vertical hole 9 there is a hole extending upwardly to the right at the upper end. A follower 10 having an inclined convex curved surface 10a is fitted so as to be slidable in the vertical direction. has been done.

[0008] A rod 11 is attached to the lower part of the cylinder 3, which is a guide means, to connect it to the upper follower 10. The combined sliding body 12 is fitted so as to be slidable in the vertical direction. Sliding body 1 2 and an end plate 13 formed by bending the lower end of the cylinder 3 inward. , a return spring 14 made of a compression coil spring is compressed, and this return spring 14 has a Therefore, the slider 12 and the follower 10 connected thereto with the rod 11 are It is constantly energized towards the direction.

[0009] In the middle part of the sliding body 12, there are long holes extending in the longitudinal direction, which are bored in the lower part of both sides of the cylinder body 3. A detent pin 16 having both ends protruding from the cylindrical body 3 to both sides passes through the hole 15. It is set up.

0010 The left end of the detent pin 16 is positioned at the left side of the shift lever 1. It is inserted through a position selection hole 18 cut in the control plate 17. Position selection hole 18 has a generally arc shape centered on the rotation center of the shift lever 1, and the upper edge thereof has a , multiple shift positions of the shift lever 1, such as parking position, rear position, Stepped shapes corresponding to the central position, drive position, second position, first position, etc. Engaging portions 18a, 18b, 18c, 18d, and 18e are provided.

[0011] Thus, the follower 10, the rod 11, the sliding body 12, the detent pin 16, the positive The locking means 19 for regulating the rotation of the shift lever is constituted by the rotation plate 17 and the like. , the detent pin 16 is urged upward by the urging force of the return spring 14. Thus, it can be stably stopped at the locking position shown in FIGS. 3 and 4. stop Then, by pressing the push button 6, the follower 10 is moved by the convex curved surface 8b. By being pushed down, the detent pin 16 resists the biasing force of the return spring 14. Then, it can be moved to the release position shown in FIG.

0012 When the detent pin 16 is in the release position, the shift lever 1 is free. Shift lever 1 can be rotated to the desired position to detent. The pin 16 is connected to each engaging portion 18a, 18b, 18c in the position selection hole 18, By engaging either 18d or 18e, the shift lever 1 It is held in each corresponding position as above.

[0013]

[Problem that the idea aims to solve]

In conventional devices such as those described above, the detent pin 16 is used for position selection. Rotate the shift lever 1 from the state where it is engaged with the engaging portion 18b or 18d of the hole 18. to engage the detent pin 16 with the engaging portion 18c of the position selection hole 18. When pushed, the convex curved surface 10a of the follower 10 is pushed by the biasing force of the return spring 14. The detent pin 16 contacts the convex curved surface 8b of the button 6, or the detent pin 16 By contacting the engaging portion 18c of the on selection hole 18, a harsh collision sound is generated. Moreover, the abrasion of these contact members is severe, which impedes the improvement of durability. There was a problem. In view of the above-mentioned problems of the conventional technology, the present invention has been developed to improve the shift lever port. This prevents collision noise from occurring when switching between positions and improves durability. The object of the present invention is to provide a shift lever device for an automatic transmission that has the following features.

[0014]

[Means to solve the problem]

In order to achieve the above purpose, the present invention has a part of the shift lever that can be freely retracted. The locking means that restricts the rotation of the shift lever is activated by pressing the push button. , an automatic transmission system that can move to the release position against the biasing force of a return spring. In a foot lever device, the locking means is biased toward the locking position by the return spring. In addition to providing an abutting member, a stopper is provided on the guide means for guiding the movement of the locking means. and the locking means reaches the locking position on either the abutment member or the stopper. A buffer member that is compressed by being sandwiched between an abutting member and a stopper when It is characterized by having the following.

[0015]

[Effect]

According to the above-mentioned means, the locking means is released from the return spring by rotation of the shift lever, etc. When moved from the release position to the locking position by the biasing force, the buffer member engages the locking means. It is compressed by being sandwiched between the contact member on the side and the stopper on the guide means side. This compression As a result, the energy of the return spring is absorbed, preventing collision noise from occurring. Also, the contact part It can prevent material wear and improve durability.

[0016]

【Example】

Hereinafter, one embodiment of the present invention will be described based on FIGS. 1 and 2. In addition, this fruit In the examples, the same members as the conventional ones shown in FIGS. 3 to 5 are designated by the same symbols. Therefore, detailed explanation thereof will be omitted.

[0017] In this embodiment, the locking hand is biased toward the locking position by the return spring 14. An abutment member 20 in the form of an enlarged diameter collar is provided at a suitable position in the middle part of the rod 11, which is a part of the step 19. At the same time, a stopper 21 facing inward is provided at the upper end of the cylindrical body 3 serving as a guide means. , and the lower surface of the stopper 21 when the detent pin 16 reaches the locking position. A buffer member that is sandwiched between the contact member 20 and the stopper 21 and compressed. 22 are provided.

[0018] The timing when the buffer member 22 is most compressed is determined by the convex curved surface 10 of the follower 10. before a comes into contact with the convex curved surface 8b of the push button 6, and the detent pin 16 comes into contact with the engaging portion 18a or 18c of the position selection hole 18. It is better to

[0019] The buffer member 22 may be made of a material having high damping properties, such as a sponge-like material or a porous material. It is preferable to use a material such as soft synthetic resin and absorb energy through the stroke amount. Yes.

[0020] Further, the buffer member 22 may be fixed to the abutment member 20 side.

[0021] With the configuration of this embodiment, the detent pin 16 is connected to the position selection hole. Rotate the shift lever 1 from the state where it is engaged with the engaging portion 18b or 18d of 18. so that the detent pin 16 is engaged with the engaging portion 18c of the position selection hole 18. When the detent pin 16, the sliding body 12 integrated therewith, the rod 11, and the driven The child 10 and the like are moved upward by the biasing force of the return spring 14. And de When the tent pin 16 reaches the locking position, the buffer member 22 engages the abutting member 20. and the stopper 21 and are compressed, and due to this compression, the return spring 14 Since the energy of Improves durability.

[0022]

[Effect of the idea]

As is clear from the above, according to the present invention, the shift lever position can be changed The locking means is moved from the release position side to the locking position by the biasing force of the return spring. When the buffer member is moved between the abutment member on the locking means side and the stopper on the guide means side, It is squeezed and compressed, and its energy absorption effect produces a harsh collision sound. It is possible to prevent corrosion and improve durability.

[Brief explanation of drawings]

FIG. 1 is a central longitudinal sectional front view of an embodiment of the present invention when the locking means is in the locking position;

FIG. 2 is a central longitudinal sectional front view of an embodiment of the present invention when the locking means is in the released position;

FIG. 3 is a central longitudinal sectional front view of the conventional shift lever device of an automatic transmission when the locking means is located at the locking position.

FIG. 4 is a diagram taken along the line AA in FIG. 3;

FIG. 5 is a central vertical sectional front view of the conventional shift lever device of an automatic transmission when the locking means is located at the release position.

[Explanation of symbols]

1 Shift lever 2 axes 3 Cylindrical body (guiding means) 4 Knob 5 Guide hole 6 push button 7 Compression coil spring 8 Engagement hole 8a Locking surface 8b Convex curved surface 9 Vertical hole 10 Follower 10a Convex curved surface 11 Rod 12 Sliding body 13 End plate 14 Return spring 15 long hole 16 Detent pin 17 Position board 18 Position selection hole 18a, 18b, 18c, 18d, 18e engaging portion 19 Locking means 20 Contact member 21 Stopper 22 Buffer member

Claims (1)

[Scope of utility model registration request] Claim 1: A locking means for regulating the rotation of the shift lever is moved to a release position against the biasing force of a return spring by pushing a push button provided on a part of the shift lever so that it can freely appear and retract. In the shift lever device for an automatic transmission, an abutting member is provided on the locking means biased toward the locking position by a return spring, and a stopper is provided on the guide means for guiding the movement of the locking means. and a buffer member is provided on either the abutment member or the stopper, and the buffer member is sandwiched between the abutment member and the stopper and compressed when the locking means reaches the locking position. A shift lever device for an automatic transmission characterized by: