JPH0710410Y2 - Select positioner for transmission - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a transmission select positioner for holding a position of a select lever at a predetermined position. Here, the "select lever" means the "select lever" when the select lever and the shift lever are separated.
It includes a "select and shift lever" when they are integrated.

[Conventional technology]

2. Description of the Related Art Conventionally, various select positioners have been known as a device that holds a position of a select lever of a vehicle transmission at a predetermined position and restricts movement from the predetermined position.

This kind of select positioner, when the driver operates the operation lever, when the select lever tries to move from a predetermined position to another position against the restriction force of the select positioner in response to the operation,
Generates resistance to the movement. Since the resistance force is transmitted to the operation lever, the driver can obtain a feeling that the driver is operating from a predetermined position to another position, that is, an operation feeling.

As this type of select positioner, for example,
The one shown in Japanese Patent Publication No. 57-202140 is known.

Next, a conventional select positioner will be briefly described with reference to FIG. The select positioner is of a type in which a select lever and a shift lever are separated from each other, and a gear shifter case 12 is provided above the transmission case 11.
The gear shifter case 12 has a shift shaft 13 supported rotatably and immovably in the axial direction.

A shift lever 14 for transmitting a shift operation force is provided on the right end side of the shift shaft 13 in the figure, and a slide lever 15 is slidably and non-rotatably supported at a spline formation portion in the center thereof. . The select lever 16 is engaged with the slide lever 15.
And the slide lever 15 are interlocked with each other, one of four select positions, that is, the first speed-reverse speed position shown in the figure (reverse speed position is indicated by R), second speed-third speed. It is designed to move to any of the position, 4th-5th position, and 6th-7th position.

Then, the slide lever 15 is biased by the compression spring 17 in the second speed-third speed position, and the retainer 19 positioned by the shoulder portion 18 of the transmission case 11 causes the slide lever 15 to be in the first speed position at the right end portion. -It is restricted to move to the reverse speed position.

Further, the slide lever 15 is biased by the compression spring 20 in its 4th-5th position, and its position is set by the retainer 22 positioned at the left end 21 of the spline forming portion of the shift shaft 13 at its left end portion. It is restricted to move to 6th-7th position.

In this way, when the select lever 16 and the slide lever 15 move to the 1st speed-reverse speed position or the 6th-7th speed positions which are the positions of both ends, the compression spring 17 or 20 is proportional to the movement amount. As a result, the reaction force is increased, and this transmission is provided with a positioner that restricts the movement of the select lever by a compression spring when the select lever moves to two select positions at both ends.

[Problems to be solved by the invention]

As described above, when the number of gears is increased and the number of positions to be selected is four, the positions at both ends of those positions (in the case shown in FIG. 3,
1st-reverse speed position and 6th-7th position)
Movement to the can be regulated by a compression spring, but between the intermediate positions (ie, in FIG.
(Between the 2nd-3rd positions and the 4th-5th positions)
However, there is a problem in that it is difficult to provide an appropriate select positioner that restricts the movement between them, and the driver cannot obtain an appropriate operation feeling during the shift operation between them.

That is, in the conventional select positioner illustrated in FIG. 3, there is no means for restricting the movement of the select lever 16 and the slide lever 15 between the 2nd-3rd positions and the 4th-5th positions. If you try to shift to the 2nd speed, you will miss the 2nd-3rd gear position and misshift to the 4th speed (misoperation shift), or the 6th speed →
If you try to shift to the 5th speed, you may pass the 4th-5th position and misshift to the 3rd speed.

Therefore, the purpose of this invention is to solve the above problems.
Of the four select positions, the shift operation mechanism that incorporates the conventional select positioner that restricts only the movement of both ends between the select positions regulates the movement between the middle-speed select positions where the movement is not regulated. In order to
It is an object of the present invention to provide a select positioner for a transmission provided with a movement limiting mechanism that can be easily added and installed without interfering with a select positioner that is conventionally installed.

[Means for solving problems]

The present invention is configured as follows to achieve the above object. That is, this invention has four select positions of the shift pattern, and when the select lever moves to two select positions at both ends, a transmission device provided with a positioner that restricts the movement by a compression spring. In the transmission system from the operation lever to the select lever, an L-shaped relay lever whose both arms are respectively connected to the operation lever and the select lever is provided, and two L-shaped relay levers are coaxially provided. When a cam having an abutting portion is fixed, a plunger that comes into contact with the cam and a spring that presses the plunger are provided, and the select lever is moved between two intermediate select positions by the operation lever. , The contact part of the cam with which the plunger contacts is switched by the rotation of the L-shaped relay lever. It is.

[Action]

Since the transmission select positioner according to the present invention is configured as described above, the select lever has an intermediate select position, that is, a second-third speed position and a four-speed position.
When in the 5th-5th position, one of the contact portions of the cam is in contact with the plunger biased by the spring. When the select lever moves between the intermediate select positions, the L connected to the operating lever
The cam also rotates with the rotation of the V-shaped relay lever. At this time, while the cam pushes the plunger against the spring at its tip, when the movement is completed, the contact portion of the cam with which the plunger contacts is switched.

In this way, the cam, the plunger, and the like act as a movement limiting mechanism that regulates movement between intermediate select positions. Since the cam and the plunger are arranged in the middle of the transmission system from the operation lever to the select lever, there is no risk of interfering with the conventional select positioner incorporated in the transmission.

〔Example〕

Embodiments of a transmission select positioner according to the present invention will be described below in detail with reference to the drawings.

FIGS. 1 and 2 show a movement limiting mechanism that regulates movement between intermediate select positions in the select positioner of the present invention. The movement limiting mechanism is provided in the middle of the transmission system from the operation lever to the select lever. The C side of the relay lever 6 is connected to the operation lever via a rod or the like, and the S side is connected to the select lever. Has been done.

In these drawings, the sleeve 3 is fixed to the bracket B fixed to the vehicle body by a suitable fixing means such as a bolt or a screw. A small diameter portion 3a on the tip side and a large diameter portion 3b on the base end side are formed on the inner surface of the sleeve 3, and a screw 3c is cut at the end of the large diameter portion 3b. A cap 4 is screwed onto the screw 3c. The plunger 1 slidably fitted into the inner surface of the sleeve 3 is provided with a locking portion 1a at the front end, a retaining flange 1b at the rear end, and a spring accommodating portion 1c at the rear end. It is provided.

Between the spring accommodating portion 1c of the plunger 1 and the cap 4,
A spring 2 is provided, and the spring 2 urges the plunger 1 so that the locking portion 1a at the tip of the plunger 1 projects from the tip of the sleeve 3 by a predetermined amount. In bracket B,
A bolt 8 formed into a cylindrical shape having an outer surface with a smooth outer surface at the lower end is fixed.

The shaft 7 is rotatably supported on the cylindrical portion of the bolt 8. The cam 5 and the relay lever 6 are fixed to the shaft 7 by an appropriate fixing means such as welding. When the relay lever 6 rotates, the shaft 7 and the cam 5 rotate together with the relay lever 6.

The relay lever 6 is an L-shaped lever and has two arm portions,
One is connected to the operation lever (control lever) C side, and the other is connected to the select lever S side. When the operation lever C is operated, the relay lever 6 and the select lever S interlock, and when the position of the relay lever 6 is restricted, the select position of the select lever S is also restricted at the same time. There is.

The tip of the cam 5 and the tip of the plunger 1 are arranged so as to face each other, and contact portions 5a and 5b are formed on both sides of the tip of the cam 5. The contact portions 5a and 5b are both selectively brought into contact with the locking portion 1a of the plunger 1.

When the contact portions 5a and 5b contact the locking portion 1a and the position of the cam 5 is regulated, the position of the relay lever 6 interlocking with the cam 5 is also regulated and the selector lever 16 interlocking with the relay lever 6 is interlocked. The select position will also be restricted.

When the contact portion 5a is in contact with the locking portion 1a, the select position of the select lever 16 is restricted to the 4th-5th position. Further, when the contact portion 5b is in contact with the locking portion 1a, the select position of the select lever 16 is restricted to the 2nd-3rd position. That is, when the select position is moved from the 4th-5th position to the 2nd-3rd position by operating the operation lever, and vice versa, the contact portions 5a, 5b of the cams 5a, 5b are moved.
Will be switched.

The transmission select positioner according to the present invention is configured as described above and operates as follows.

Now, as shown by the solid line in FIG. 1, when the contact portion 5a of the cam 5 is in contact with the locking portion 1a, the select position of the select lever 16 interlocking with the cam 5 is the 4th-5th position. Is regulated by. At this time, when the operation lever is operated to rotate the relay lever 6 counterclockwise in FIG. 1, the cam 5 rotates from the solid line position to the broken line position,
The contact part 5b contacts the locking part 1a.

At that time, the cam 5 rotates while compressing the spring 2 against the elastic force of the spring 2. The magnitude of the force required to rotate the cam 5 at this time mainly depends on the magnitude of the elastic force of the spring 2 and the contact portion.
It is determined by the direction of the tangent line of the contact surface between 5a or 5b and the locking portion 1a. Therefore, the magnitude of the force that restricts the rotation of the cam 5 can be adjusted by appropriately setting the elastic force of the spring 2 and the shapes of the contact portions 5a, 5b and the locking portion 1a. Moreover, when the cam 5 rotates,
It is also possible to adjust the reaction force acting on the first acting largely and then gradually decreasing depending on how the shapes of the contact portions 5a and 5b and the locking portion 1a are set.

Therefore, the driver operates the operation lever to rotate the cam 5 while resisting the appropriately adjusted reaction force, and from the state where the contact portion 5a is in contact with the locking portion 1a, The contact portion 5b is moved to a state of abuttingly engaging the locking portion 1a. At this time, the select position of the select lever 16 interlocked with the cam 5 is from the 4th-5th position to the 2nd-
Move to 3rd position.

Although the embodiments of the present invention have been described in detail above, the present invention is not limited to the above embodiments, and various modifications can be made without departing from the technical idea of the present invention described in the scope of claims for utility model registration. Of course, it is possible to change the design.

[Effects of the Invention] As is apparent from the above description, the transmission select positioner according to the present invention has four shift pattern select positions, and the select lever moves to two select positions at both ends. In this case, in a transmission equipped with a positioner that restricts its movement by a compression spring, both arms are respectively connected to the operation lever and the select lever in the middle of the transmission system from the operation lever to the select lever. The operation lever is provided with an L-shaped relay lever, which fixes a cam having two abutting portions coaxially with the L-shaped relay lever, and a plunger which comes into contact with the cam and a spring which presses the plunger. Therefore, when the select lever moves between two intermediate select positions, the L-shaped relay lever is moved. The contact part of the cam with which the plunger contacts is switched by the rotation of the lever. Therefore, by appropriately setting the magnitude of the elastic force of the spring and the locking of the locking part and the engaging part, the driver It is possible to set the reaction force to the operating lever that is gripped by an appropriate value, and it is possible to give the driver an appropriate operating feeling even when the select lever moves between two intermediate select positions. Is.

In addition, since a movement limiting mechanism consisting of a cam and a plunger is located in the middle of the transmission system from the operation lever to the select lever, it can be easily added without interfering with the conventional select positioner built into the transmission. Can be incorporated.

Therefore, a driver's mis-shift, that is, an erroneous operation can be prevented, and the operability of the shift operation can be improved.

[Brief description of drawings]

FIG. 1 is a sectional view taken along the line I--I of FIG. 2 showing an embodiment of a transmission select positioner according to the present invention, FIG. 2 is a side view of FIG. 1, and FIG. 3 is a conventional transmission. FIG. 3 is a cross-sectional view showing a select positioner for vehicle. 1 ... Plunger, 1a ... Locking part, 2 ... Spring, 3 ...
Sleeve, 4 ... Cap, 5 ... Cam, 5a, 5b ... Contact part, 6 ... Relay lever, 7 ... Shaft, 11 ... Transmission case, 12 ... Gear shifter case, 13 ... Shift Shaft, 14 …… Shift lever, 15 …… Slide lever, 16 …… Select lever, 17,20 …… Compression spring, 19,22 …… Retainer

Front page continuation (72) Masami Tashiro 3-25-1, Tonomachi, Kawasaki-ku, Kawasaki-shi, Kanagawa Isuzu Motors Limited Kawasaki Plant (72) Kazuo Takano 3-25-1, Tonomachi, Kawasaki-ku, Kanagawa Prefecture Issue Isuzu Motors Co., Ltd. Kawasaki Plant (72) Inventor Kazuhisa Okumaru 3-25-1 Tonomachi, Kawasaki-ku, Kawasaki City, Kanagawa Prefecture Isuzu Motors Ltd. Kawasaki Plant (72) Inventor Junichi Ino, Tonomachi, Kawasaki-ku, Kawasaki City, Kanagawa Prefecture 3-25-1 Isuzu Motors Co., Ltd. Kawasaki Plant (56) References Shown 57-202140 (JP, U) Shown 58-68432 (JP, U) Shown 60-30821 (JP, U) ) Actually open 51-4893 (JP, U) Actually open 50-532 (JP, U) Actually open 59-376 (JP, Y2)

Claims (1)

[Scope of utility model registration request] 1. A transmission having a positioner which has four select positions of a shift pattern and which, when the select lever moves to two select positions at both ends, is provided with a positioner which restricts the movement by a compression spring. , An L-shaped relay lever whose both arms are respectively connected to the operation lever and the select lever is provided in the middle of the transmission system from the operation lever to the select lever, and two L-shaped relay levers are provided coaxially with the L-shaped relay lever. While fixing the cam provided with the contact portion, a plunger that contacts the cam and a spring that presses the plunger are provided, and when the select lever is moved by the operation lever between two intermediate select positions, The L
A select positioner for a transmission, wherein a contact portion of a cam with which the plunger contacts is switched by rotation of a character-shaped relay lever.