JPH0519642Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to a technology for improving a shift tower that controls shift switching of a vehicle transmission.

<Prior Art> Conventional examples of this type of shift tower include the following. (Refer to Utility Model Application No. 59-185450 and Utility Model Application No. 60-23428.) In other words, the shift tower is provided with a shift lever for operating the transmission, and the shift lever is centered at one end. As a result, it is free to swing in the longitudinal direction of the vehicle. The shift position of the transmission is controlled by swinging the shift lever in the above direction by a predetermined angle.

By the way, in order to prevent the shift lever from malfunctioning and to give a sense of moderation to the gear shifting operation,
The following stopper mechanism is formed. That is, a hollow shift lever body is integrally attached to the shaft, and a moving member is attached within this shift lever body. Further, a pin is provided on the moving member so as to protrude from the shift lever body.

On the other hand, a position plate 1 as shown in FIG. 5 is attached to the shift tower main body, and the position plate 1 is formed with stepped engagement grooves 2 corresponding to predetermined shift positions of the transmission.

Then, by operating a button provided on the handle at the other end of the shift lever main body, the pin 3 is moved downward in FIG. After the shift is released, the shift lever is swung to switch to a predetermined shift position. Further, the shift lever is held at a predetermined shift position by engaging and holding the pin 3 in the engagement groove 2 by the elastic biasing force of the spring.

In particular, in order to prevent the shift position from switching to reverse due to malfunction while the vehicle is moving forward, the reverse position (R position in Figure 5) and neutral position (N position in Figure 5) are changed as shown in Figure 5. A stopper portion 4 is formed in between.

<Problem to be solved by the invention> However, in such a conventional shift tower, a stopper portion 4 is provided between the reverse position and the neutral position to prevent the shift lever from shifting to the reverse position due to malfunction. However, if the driver tries to return the gear from the forward gear (1st, 2nd, 3rd positions in Figure 5) to the unitary position while pressing the button on the handle, the pin 3 will go over the stopper part 4. There was a risk that the vehicle would move all at once to the reverse position, and in this case, there was a risk that the drive system would be damaged.

The present invention has been developed in view of the above circumstances, and an object of the present invention is to provide a shift tower for shift change control that prevents the shift stage of a transmission from being changed all at once to the reverse position.

<Means for Solving the Problems> Therefore, in the present invention, the position member to which the engagement member is engaged and disengaged is configured as follows.

That is, the engagement member is located between an engagement groove wall position corresponding to a reverse gear of the transmission and an engagement groove wall position provided adjacent to the position and corresponding to a predetermined shift gear different from the reverse gear. A first stopper portion for regulating the movement of the first stopper portion is formed between the first stopper portion and the engagement groove position corresponding to the reverse stage, and the first stopper portion is arranged opposite to the gap on the distal end side of the first stopper portion. A second stopper part for regulating the movement of the mating member is erected from a wall opposite to the one wall, and its tip is formed to protrude toward the one wall side more than the tip of the first stopper part. I made it.

<Function> According to the above configuration, when the engaging member is engaged with the engaging groove position corresponding to the reverse stage, the movement of the engaging member is first regulated by the first stopper portion. In order to release the restriction by the first stopper part, the engaging member needs to pass through the tip of the first stopper part. Here, as a configuration according to the present application, a second stopper part for regulating movement of the engaging member is provided upright from a wall opposite to the one wall, corresponding to the gap on the tip side of the first stopper part. ing. Therefore, the movement of the engaging member that has passed the tip of the first stopper section is regulated by the second stopper section.

Furthermore, in the configuration according to the present application, since the tip of the second stopper part is formed to protrude toward the one wall side more than the tip of the first stopper part,
The engaging member that has passed the tip of the stopper part must be
This comes into contact with the second stopper portion, and prevents the engaging member from moving all at once to the engaging groove position corresponding to the reverse stage.

Therefore, the engagement member is prevented from separating from the groove wall and switching to the reverse gear all at once due to the driver's operation.

<Example> Below, an example of the present invention will be described based on the drawings.

1 and 2 show a first embodiment of the present invention. The present embodiment will be explained using a so-called semi-automatic transmission as an example.

First, the overall structure of the shift tower will be explained based on FIG. 1. One end of a cylindrical shift lever body 11 is attached to a shaft 12, and the shaft 12 is attached to a shift tower body 13 so as to be able to swing freely. . A rod-shaped moving member 14 is housed in the shift lever body 11 so as to be freely movable in the axial direction of the shift lever body 11 (in the vertical direction in FIG. 1). A check pin 15 as an engaging member is attached to this moving member 14.
5 protrudes outward from a long hole in the shift lever main body 11. The shift lever main body 11 is provided with a spring 16 as an elastic member that elastically biases the moving member 14 upward in FIG.

A position plate 17 as a position member is attached to the shift tower main body 13,
The check pin 1 is attached to the position plate 17.
An engagement groove 18, which will be described later, is formed in which the engagement groove 5 engages.

Further, a handle 19 is attached to the other end of the shift lever main body 11, and an operation button 20 is attached to the handle 19. Then, by pressing the operation button 20, the movable member 14 is moved downward in FIG.
5 is spaced apart from the inner wall of the engagement groove 18 of the position plate 17.

As shown in FIG. 2, the engagement groove 18 of the position plate 17 has a groove between the reverse position (R position in FIG. 2) and the neutral position (N position in FIG. 2), as in the conventional example. A first stopper portion 18a is formed to protrude from one wall 19. Further, a groove is provided in the engagement groove 18 between the first stopper part 18a and the reverse position R to restrict the movement of the check pin 15 in correspondence with the distal end side gap 18c of the first stopper part 18a. 2
The stopper portion 18b is connected to the lower peripheral wall 20 in FIG.
It has been erected since. Furthermore, the second stopper portion 18
The tip 18f of the first stopper portion 18a is formed to protrude further toward the wall 19 than the tip 18e of the first stopper portion 18a.

In addition, 21 in Figure 1 is a shift tower cover, 22
Shift tower cover 21 and shift tower body 1
This is a bracket to be attached to 3.

According to this configuration, in the released state in which the operation button 20 is pressed and the check pin 15 is separated from the wall of the engagement groove 18 (moved downward in FIG. In 2 figures, 1st,
When switching from the 2nd and 3rd positions to the neutral position, the movement of the check pin 15 is first restricted by the first stopper portion 18a. and,
In order to release the restriction by the first stopper part 18a, move the check pin 15 to the first stopper part 18a.
It is necessary to pass through a gap 18c formed on the tip 18e side of a. Here, in this embodiment, a second stopper part 18b for regulating the movement of the check pin 15 is provided upright from the wall 20 opposite to the one wall 19 in correspondence with the distal end side gap 18c of the first stopper part 18a. It is provided. Therefore, the first
The check pin 15, which has passed through the tip 18e of the stopper part 18a, comes into contact with the second stopper part 18b.

Furthermore, in this embodiment, the second stopper portion 18b
Since the tip 18f of the check pin 15 is formed to protrude further toward the wall 19 side than the tip 18e of the first stopper portion 18a, the check pin 15 that passes through the gap 18c located at the tip 18e of the first stopper portion 18e always comes into contact with the second stopper portion 18b. Therefore, even if the operation of the operation button 20 is released, the check pin 15 is not shifted to the reverse position all at once, but is held at an intermediate position between the neutral position and the reverse position, as shown in FIG. It is possible to prevent the vehicle from moving backwards easily, and it is also possible to prevent damage to the drive system.

Thereafter, by swinging the shift lever body 11, the check pin 15 can be moved to the reverse position.

FIG. 3 shows a second embodiment of the present invention applied to an automatic transmission. In FIG. 2, the same elements as in the first embodiment are denoted by the same reference numerals, and the explanation thereof will be omitted.

That is, the engagement groove 3 of the position plate 31
2, the first stopper portion 32 is located between the reverse position and the unitral position as in the conventional example.
A is formed to protrude from one wall 39. Further, the engagement groove 32 has a groove located between the first stopper part 32a and the reverse position R, which restricts the movement of the check pin 15 in correspondence with the distal end side gap 32c of the first stopper part 32a. 2 stopper part 3
2b is erected from the lower peripheral wall 40 in FIG. Furthermore, the tip 32 of the second stopper portion 32b
f is formed so as to protrude further toward the one wall 39 side than the tip 32e of the first stopper portion 32a.
In addition, the third stopper portion 32d is located in the engagement groove 32 at the reverse position and the parking position (position P in FIG. 3).
It is located between the

This configuration also provides the same effects as the first embodiment.

FIG. 4 shows a modified form of the shift tower.

That is, a movable member 43 is movably attached to a shift lever body 42 that is freely swingably attached to a shift tower body 41, and this movable member 43
A check pin 44 is attached to. This check pin 44 is adapted to engage with an engagement groove 46 formed in a position plate 45 attached to the shift tower main body 41.

By pressing a handle 47 attached to the end of the moving member 43 in the moving direction of the moving member 43, the check pin 44 is separated from the engagement groove 46.

The present invention can also be applied to such a shift tower.

<Effects of the invention> As explained above, the invention includes a first stopper portion that restricts the movement of the engaging member to the reverse stage;
A second stopper part for restricting movement of the engaging member is provided between the first stopper part and the engagement groove position corresponding to the reverse stage, and corresponds to the distal end side gap of the first stopper part. Since it is formed to stand upright from the wall facing the wall and its tip protrudes toward the wall side beyond the tip of the first stopper portion, it is possible to prevent the gear from being shifted from the forward gear to the reverse gear all at once. It is possible to prevent the vehicle from moving backwards inadvertently, and also to prevent damage to the drive system.

[Brief explanation of the drawing]

Fig. 1 is an exploded view of a shift tower showing a first embodiment of the present invention, Fig. 2 is an enlarged view of the main parts of the same as above, Fig. 3 is an enlarged view of main parts showing a second embodiment of the invention, Fig. 4 The figure is a sectional view showing a modified example of the shift tower, and FIG. 5 is an enlarged view of main parts showing a conventional example of the shift tower. 11... Shift lever body, 13... Shift tower main body, 14... Moving member, 15... Check pin, 16... Spring, 17, 31... Position plate, 18, 32... Engaging groove, 18
a, 32a...first stopper part, 18b, 32b
...Second stopper section.

Claims (1)

[Scope of utility model registration request] A shift lever body whose one end is attached to a shift tower body so as to be freely swingable in one direction about the one end; a movable member which is attached to the shift lever body so as to be movable in the axial direction of the body; and the movable member. a position member that is attached to the shift tower main body and has an engagement groove in which the engagement member is engaged with and disengaged from one wall; and a position member that engages the engagement member with one wall of the engagement groove. an elastic member that urges the engaging member or the moving member to move the engaging member to one wall of the engaging groove corresponding to a predetermined shift stage of the transmission by swinging the shift lever main body. In a shift tower for controlling shift switching of a vehicle transmission, which is adapted to be engaged,
The engagement groove wall position is located between an engagement groove wall position corresponding to a reverse gear of the transmission and an engagement groove wall position adjacent to the engagement groove wall position and corresponding to a predetermined shift gear different from the reverse gear. The first to restrict the movement of parts.
A stopper portion is formed between the first stopper portion and the engagement groove position corresponding to the reverse stage, and the movement of the engagement member is restricted in correspondence with the gap on the tip side of the first stopper portion. The position member is configured such that the second stopper part is erected from a wall opposite to the one wall, and the tip thereof projects further toward the one wall than the tip of the first stopper part. A shift tower for controlling shift switching of a vehicle transmission, characterized by: