JPH04119661U - Select lever device for automatic transmission - Google Patents

Abstract

(57) [Summary] [Purpose] In a select lever device for an automatic transmission in which a select lever is provided on a support frame so as to be movable in the longitudinal and horizontal directions, the select lever is moved to a desired shift position when a shift is operated. To prevent an erroneous operation that goes too far and is switched to another shift position. [Configuration] Move the select lever L from a specific shift position.
An operation resistance increasing mechanism C is provided between the support frame 2 and the lever L to temporarily increase the operation resistance of the lever L when switching to one adjacent shift position.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention is a select lever device for automatic transmission, especially a select lever mounted on a support frame. The select lever is movable in the front and rear and left and right directions. By moving the lever in the direction, the lever can be selectively moved between a plurality of shift positions spaced apart in the longitudinal direction. It relates to a type that can be switched.

0002

[Conventional technology]

Conventionally, in the above type of select lever device for automatic transmission, the select lever The shaft of the lever is inserted in order to regulate and guide the movement of the lever in the longitudinal and lateral directions. A step-shaped guide hole was provided in the support frame (for example, Japanese Patent Application Laid-open No. 1-1067 (See Publication No. 35).

0003

[Problem that the idea aims to solve]

In the above-mentioned conventional device, the movement of the select lever L from each shift position in one direction in the front and back direction is temporarily restricted by the intermediate step provided in the stepped guide hole 5 corresponding to each shift position, as illustrated in FIG. However, since the right end of the intermediate stage section is open in one direction in the front-rear direction, for example, when switching the select lever L from the "D ₄ " position to the "N" position, it may become too far. There is a risk of erroneously operating to the "R" position, or erroneously operating to the "1" position by going too far when switching from the "D ₃ " position to the "2" position.

0004 The present invention was proposed in view of the above, and is an automatic device that can solve the above problems of conventional devices. An object of the present invention is to provide a select lever device for a transmission.

[0005]

[Means to solve the problem]

In order to achieve the above purpose, the present invention provides a support frame with select levers on the front, back and left sides. It is provided so that it can be moved in the right direction, and the select lever can be moved back and forth and left and right. The lever can be selectively switched between a plurality of shift positions spaced apart in the longitudinal direction. In the select lever device for an automatic transmission, the select lever When switching from a specific shift position to an adjacent shift position, An operation resistance increasing mechanism that temporarily increases the operation resistance of the bar is connected to the support frame and the lever. It is characterized by being placed in between.

[0006]

【Example】

An embodiment of the present invention will be described below with reference to the drawings. In Figure 1, the car A floor console Cf installed in the vehicle interior has an operation knob 1c at its upper end. The automatic transmission select lever L is upright, and the base 1a of this lever L is It is supported by a support frame 2 housed within the lower console Cf.

As shown in FIG. 2, the support frame 2 is composed of a box-shaped frame body 2m fixed to the vehicle body, and a cover plate 2t detachably attached to the open upper end of the frame body 2m. , A first support shaft 3 ₁ extending in the left-right direction of the vehicle body is rotatably connected horizontally to the left and right side walls 2 ml and 2 mr of the frame body 2 _m , and a select A second support shaft ₃₂ that is fitted into the base 1a of the lever L and extends in the longitudinal direction of the vehicle body passes through it, and thus the select lever L can be swung in both the longitudinal direction and the lateral direction of the vehicle body. . Although not shown, a return spring is interposed between the select lever L and the frame body 2m to always swing and bias the lever L to the left.

[0008]The base portion 1a of the select lever L is connected to an end of an operating wire 4 that is connected to a manual valve and a parking lever of an automatic transmission (not shown), and therefore the select lever L is connected to the first support shaft 3. By swinging the automatic transmission forward and backward in _one rotation, the automatic transmission is sequentially moved from the front to the parking position "P", the reverse position "R", the neutral position "N", and the automatic transmission position that can shift up to 4th gear. The first drive position "D ₄ ", the second drive position "D ₃ " which allows automatic shifting up to third speed, the second drive position "2", and the low position "1" can be operated.

The cover plate 2t of the support frame 2 is exposed through the opening of the floor console Cf, and the cover plate 2t has a shaft portion 1b of the select lever L in order to guide the swinging of the select lever L. A guide hole 5 is formed for insertion, and a display window 6 for displaying the shift position is provided along the left side of the guide hole 5. The guide hole 5 alternately has a vertically long portion extending in the same direction to guide the forward and backward rocking of the select lever L, and a horizontally long portion extending in the same direction to guide the left and right rocking of the select lever L. They are connected to form a step shape, and this shape allows the select lever L to be changed from the "P" position to the "R" position, or from the "D ₃ " position to the "2" position, for example. etc., the lever L must first be swung rightward against the biasing force of the return spring before it can be swung back and forth.

0010 Between the select lever L and the support frame 2, there is a space between the select lever L and the support frame 2. In the example, "N" position; "2" position) is shifted from one adjacent shift position (same "R" position). When switching to the "1" position), the operating resistance of the lever L is temporarily increased. A moderation mechanism C is provided as an operation resistance increasing mechanism to increase the operating resistance. The configuration of C will be explained with reference to FIGS. 2 to 4. At the base 1a of the select lever L, , a stepped horizontal hole 7 passing through it in the left and right direction, and a middle inner surface of the large diameter hole 7b. A vertical hole 8 that opens and extends in the length direction of the lever L is bored, and the horizontal hole 7 has a small diameter hole that is slidably inserted into the small hole portion 7a and the large diameter hole portion 7b, respectively. A stepped pin 9 integrally formed with a shaft portion 9a and a large diameter shaft portion 9b is supported, and the vertical The hole 8 has a ball 10 in contact with the circumferential surface of the stepped pin 9, and a ball 10 that is always in contact with the stepped pin 9 side. A biasing coil spring 11 is provided.

On the other hand, a guide wall 12 that surrounds the guide hole 5 and is open at the lower end is fixed to the lower surface of the cover plate 2t, and the large diameter end of the stepped pin 9 is attached to the guide wall 12. A first guide surface 12 ₁ that faces the pin 9 and extends in the front-rear direction, and a second guide surface 12 ₂ that faces the small diameter end of the pin 9 and also extends in the front-rear direction are provided to face each other. The first guide surface 12 ₁ is formed uniformly flat over its entire length in the longitudinal direction, and the second guide surface 12 ₂ includes a flat portion 13 , a front recess 14 corresponding to the "P" position, and a "D" An intermediate recess 15 corresponding to the _"4 " and "D ₃ " positions is formed, and the distance between the flat part 13 and the first guide surface 12 ₁ is approximately the same as or slightly longer than the entire length of the stepped pin 9. is set to

As shown in FIG. 4, when the select lever L is in the "D ₄ " or "D ₃ " position, the small diameter end of the stepped pin 9 is in the intermediate recess 15 of the second guide surface 12 ₂ . When the lever L is in the "N" or "2" position, the large diameter end of the stepped pin 9 is in the first guide. The ball 10 contacts the surface 12 ₁ and the circumferential surface of the small diameter shaft portion 9a and the stepped portion 9s of the pin 9, and when the lever L is in the “R” and “1” positions, the stepped pin 9 When the large diameter end contacts the first guide surface 12 ₁ and the ball 10 contacts the circumferential surface of the large diameter shaft portion 9b of the pin 9, and when the lever L is in the "P" position, the stepped pin 9 The guide hole 5 and each guide surface 12 1 , 12 2 are arranged so that the small diameter end of the second guide surface 12 ₂ contacts the front recess 14 of the second guide surface 12 ₂ and the ball 10 presses against the circumferential surface of the large diameter shaft portion 9b of the second guide surface 12 _{2 .} , stepped pin 9, etc. and their mutual positions are set.

Next, the operation of the above embodiment will be explained. First, consider the case where the select lever L is switched from the "D ₄ " position to the "N" position. To perform this switching operation, it is first necessary to move the select lever L to the right, and after the shaft portion 1b passes the intermediate stage portion of the stepped guide hole 5 corresponding to the "D ₄ " position, it is necessary to swing it forward. be. During the rightward movement process, the stepped pin 9 moves to the right integrally with the base 1a of the lever L, and hence the ball 10, so that the ball 10 remains in contact with the circumferential surface of the small diameter shaft portion 9a from beginning to end and moves the stepped portion 9s. Therefore, the operational resistance of the lever L during this period is only due to the return spring and hardly changes.

However, when the select lever L reaches the "N" position, the large diameter end of the stepped pin 9 comes into contact with the first guide surface 12 ₁ and further rightward movement is restricted. In this regard, in order to move the lever L further to the right from the "N" position, it is necessary for the ball 10, which is trying to move to the right following the lever base 1a, to overcome the step 9s against the biasing force of the coil spring 11. At that time, the operating resistance of the lever L increases, so a moderate amount of braking is applied to the lever L, and the operator is given a certain sense of moderation and alerted, and thus the lever L is moved with momentum. It is possible to prevent an erroneous operation caused by reaching the "R" position too far.

[0015] Also, when the select lever L is switched from the "D ₃ " position to the "2" position, when the lever L reaches the "2" position, the stepped pin 9 has its large diameter end aligned with the first guide surface. 12 Since further rightward movement is restricted by contact with ₁ , it is possible to prevent the lever L from moving too far to the "1" position and being operated incorrectly for the same reason as above. can.

[0016] Also, move the select lever L from the "N" or "2" position to the "R" or "1" position. Even when attempting to actively switch the position, the initial operating resistance will be similar to the above However, when lever L is moved to the right against the operating resistance, ball 1 increases. 0 crosses over the stepped portion 9s of the stepped pin 9 and comes into contact with the circumferential surface of the large diameter shaft portion 9b, After that, the operating resistance of the lever L returns to a relatively small state.

[0017]

[Effect of the idea]

As described above, according to the present invention, the selector lever can be moved in the front/back and left/right directions. When switching the bar from a specific shift position to an adjacent shift position An operation resistance increasing mechanism that temporarily increases the operation resistance of the lever is attached to the support frame and the lever. Since the specified shift position is located between the specified shift position and the other shift position adjacent to the When switching the select lever to the shift position of Even if the shift position is exceeded, the temporary increase in operating resistance will cause the shift position to shift too far. Appropriate braking can be applied to the lever, and the operator is immediately alerted to the situation. This can effectively prevent erroneous operation of the lever. can do.

[Brief explanation of drawings]

[Fig. 1] A perspective view of a floor console showing an embodiment of the present invention.

[Figure 2] Exploded perspective view of the main parts of the select lever device

[Figure 3] Enlarged sectional view taken along line 3-3 in Figure 2

[Figure 4] Explanatory diagram showing the movement of the stepped pin and ball at each shift position

[Fig. 5] Enlarged plan view in the direction of arrow 5 in Fig. 1

[Explanation of symbols]

2 Support frame 5 Guide hole C Moderation mechanism as a mechanism for increasing operating resistance L select lever

Claims (1)

[Scope of utility model registration request] Claim 1: A select lever (L) is provided on the support frame (2) so as to be movable in the longitudinal and lateral directions, and by moving the select lever (L) in the longitudinal and lateral directions, the lever (L) can be moved in the longitudinal and lateral directions. In a select lever device for an automatic transmission, the select lever device is capable of selectively switching between a plurality of shift positions spaced apart in a direction, and the select lever (L) is switched from a specific shift position to one adjacent shift position. An automatic transmission characterized in that an operation resistance increasing mechanism (C) for temporarily increasing the operation resistance of the lever (L) when operated is provided between the support frame (2) and the lever (L). Machine select lever device.