JPS6146080Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Technical Field) The present invention is a transmission operating device, in particular, an operating lever is rotatably supported on a fixed member having a lever shaft, and movement caused by rotation of the lever is transmitted to a transmission. The present invention relates to a gear shift operating device that switches to a predetermined gear position.

(Prior Art) Conventionally, in this type of speed change operation device, a plurality of recesses are provided on one side of an operation lever and a fixed member that supports the lever, and a ball that engages with one of the recesses is supported on the other side. Then, the ball is pressed toward the recess by a coil spring held by a holding case, and the gear position is determined by the engagement of this ball with the recess, and at the same time, the lever is moved to the position corresponding to the gear position. There are known devices that can stop this.

However, in the conventional speed change operation device configured as described above, the spring that urges the ball toward the recessed portion is a coil spring and is held in the holding case, so the holding case protrudes greatly to the outside and the entire body is damaged. Not only is the ball large in size, but the biasing structure for the recessed portion of the ball is complicated, making it difficult to assemble and increasing costs. There was a high risk that a person's limbs would come into contact with them and be injured, or that their clothes could get caught and tear.

(Purpose of the invention) The present invention has been devised in view of the above points, and the purpose is to provide a hollow part in the boss part of the operating lever, and to create an arc-like shape in the hollow part to urge the locking body toward the recessed part. By configuring the positioning mechanism with an internal elastic plate, the positioning mechanism does not protrude outward, and the locking body can be held even in a small space.
At the same time, it is possible to achieve high performance with less variation in positioning performance, and also to be able to simplify the structure with a small size as a whole.

(Structure of the invention) Accordingly, the present invention provides a hollow part in the boss part of the operation lever, makes the boss part face the fixing member, and includes a recessed part in one of the boss part and the fixing member. A locking body that engages with the recessed portion is provided on the other side, and an arc-shaped elastic plate that urges the locking body toward the recessed portion is installed inside the hollow portion, so that the positioning mechanism protrudes to the outside. Eliminate the
The locking body can be held even in a small space, the structure of the positioning mechanism can be simplified, there is little variation in quality, and the overall structure can be made compact.

(Example) Examples of the present invention will be described below based on the drawings.

In the figure, 1 is a fixed member having a lever shaft 11, and 2 is the lever shaft 1 of this fixed member 1.
The fixing member 1 has a substantially C-shaped tightening band 12 having a lever shaft 11, a square hole 13 in the center, and the lever shaft on one side. 11 and a positioning body 3 to be described later.
A tightening bolt 10 is attached between both ends of the tightening band 12, and a screw hole 11a is provided in the center of the lever shaft 11.
A rectangular pedestal 16 is provided at the base of the seat plate 1, and the pedestal 16 is fitted into the square hole 13 of the seat plate 15 to integrate the tightening band 12 and the seat plate 15. Incidentally, the tightening band 12 and the seat plate 15 may be formed integrally.

Further, the lever 2 is provided with a shaft hole 21 for receiving the lever shaft 11 at the center of its boss portion 2a, and is supported in a freely rotatable manner by fitting the shaft hole 21 into the lever shaft 11.

Therefore, the gist of the present invention is that the operating lever 2
A hollow part 23 is provided in the boss part 2a, and a recessed part 5 constituting a positioning mechanism is provided in one of the boss part 2a and the fixing member 1, with the boss part 2a facing the fixing member 1. The recessed part 5 on the other side
A locking body 6 that engages with each other is provided, and an arc-shaped elastic plate 9 that urges the locking body 6 toward the recessed portion 5 is installed inside the hollow portion 23.

In the drawing, the boss portion 2a of the operation lever 2 has an opening on one side and the shaft hole 21.
The hollow portion 2 is provided with a recessed hole 22 having a larger diameter.
3.

As described above, the positioning body 3 is supported on the lever shaft 11 of the fixed member 1 supporting the operating lever 2 so as to be freely adjustable in position.

This positioning body 3 is connected to the recessed hole 22 of the lever.
A disk-shaped mounting wall 31 with a larger diameter and a through hole 31a in the center, and a cylindrical support wall 3 protruding from one side of the mounting wall 31 in the axial direction of the lever shaft 11.
2, and the mounting wall 3 of this positioning body 3
1 is placed outside the lever 2, and the outer peripheral surface of the support wall 32 is placed opposite to the inner peripheral surface of the hollow part 23 of the lever, and the tightening bolt 4 is inserted into the through hole 31a. By screwing the bolt 4 into the screw hole 11a of the lever shaft 11, the positioning body 3
The operating lever 2 is pressed against the seat plate 15 via the lever 2, thereby applying a predetermined rotational resistance to the operating lever 2 with respect to the positioning body 3 and the seat plate 15.

The positioning mechanism is provided between the inner circumferential surface of the cavity 23 of the lever 2 and the outer circumferential surface of the support wall 32 of the positioning body, and an adjusting body 7 is provided between the fixing member 1 and the positioning body 3. It is set up.

The positioning mechanism includes a plurality of the recessed portions 5...
...and the locking body 6 that engages with one of the recessed portions 5.
The recessed portion 5 is provided on the inner peripheral surface of the hollow portion 23 in accordance with the amount of movement corresponding to the gear position, and the locking body 6 is elastically supported by the support wall 32.

This locking body 6 is supported by providing a receiving hole 35 for the locking body 6 in the support wall 32 as shown in FIG. 1, and inserting the locking body 6 into the receiving hole 35, and 32, the arc-shaped elastic body 9 is made of a substantially C-shaped leaf spring that urges the locking body 6 outward.
is provided and elastically supported by the elastic body 9, and at the same time the gear position is determined by the engagement of the locking body 6 with the recessed part 5, the lever 2 is moved to a position corresponding to the gear position. This is to stop it.

Further, as shown in FIGS. 3 and 4, the adjusting body 7 is provided with a screw hole 17 in the upright piece 14 of the fixing member 1 and is screwed into the screw hole 17. A set screw is formed on the outer periphery of the shaft portion 7a and a large diameter shaft portion 7b following the shaft portion with thread grooves having different helical directions, and the large diameter shaft portion is screwed into the screw hole 17. , the engagement body 8 is attached to the small diameter shaft part.
It is screwed on. Then, one side of the mounting wall 31 of the positioning body 3 is extended outward to face the upright piece 14, and this extension 33
is provided with a locking hole 34 that engages with the engaging body 8, and the engagement of the engaging body 8 with the locking hole 34 prevents the free rotation of the positioning body 3, and the screwing of the adjusting body 7 prevents the positioning body 3 from rotating freely. The positioning body 3 is rotated clockwise in FIG. 3 with respect to the operating lever 2 in a stationary state, and the positioning body 3 is rotated in the counterclockwise direction in FIG. 3 with respect to the operating lever 2 by screwing back the adjusting body 7. It's done as it should be.

In the figure, numerals 20 and 30 are spacers made of synthetic resin.

The present invention is constructed as described above, and as is known, the operating lever 2 and a movable member of a transmission (not shown) are connected by an operating wire, and the lever 2 is connected to a movable member of a transmission (not shown).
The movable member is moved by the rotation operation to change the speed to a predetermined gear position.

As the lever 2 rotates, the locking body 6 that has been engaged with one of the recesses 5 moves out of the recess 5 against the force of the arcuate elastic plate 9. This locking body 6 overcomes the peak between the recessed part 5 and the next recessed part 5 adjacent to the recessed part 5, and at the same time is engaged with the next recessed part 5 by the force of the elastic plate 9. Due to this engagement, the operating position of the operating lever 2 is maintained.

In the above description, the inner circumferential surface of the hollow portion 23 provided in the boss portion 2a of the operating lever 2 is made to face the outer circumferential surface of the support wall 32 in the positioning body 3 of the fixing member 1, and the boss portion 2a The recessed portion 5
In addition, the fixing member 1 is provided with the locking body 6, and an arc-shaped elastic plate 9 is provided on the locking body 6 so as to bias the locking body 6 in a diameter-expanding shape, but this structure is limited. However, other structures may be used instead. That is, the locking body 6 and the recessed part 5 are not particularly limited as long as they are between the positioning body 3 and the lever 2. It may also be provided on the lever 2.

In addition to being supported by the lever shaft 11 of the fixed member 1, the positioning body 3 may be supported by the seat plate 15 or the tightening band 12. In this case, for example, the first
Reverse the operating lever 2 shown in the figure and
The recessed hole 22 provided in the seat plate 15 is opened in the direction of the surface facing the seat plate 15. Further, the positioning body 3 may be formed into a shape that can elastically support the locking body 6 or a shape that can provide the recessed portion 5, and its shape is not particularly limited.

Further, although the locking body 6 is formed by a roller as shown in the figure, it may also be a ball. However, by forming it with a roller, there is an advantage that wear of the locking body 6 and the recessed portion 5 can be reduced.

Further, the positioning mechanism consisting of the locking body 6 and the recessed part 5 may be one set, but as shown in the figure, there are two positioning mechanisms.
A set may be provided.

(Effect of the invention) As described above, the present invention provides a positioning mechanism by providing a hollow part in the boss part of the operation lever, and incorporating an arc-shaped elastic plate inside the hollow part to urge the locking body toward the recessed part. As a result, the positioning mechanism can be prevented from protruding outside, improving safety, and the locking body can be securely held within the cavity even in a small space. By using the elastic plate, it is easy to manufacture and assemble into the cavity, the locking body can be reliably biased against the recess, and the biasing force of the elastic plate can be easily uniformized. Overall, it is possible to stabilize the quality with less variation in positioning performance, and also to simplify the structure with a smaller overall size.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway plan view showing an embodiment of the device of the present invention, Fig. 2 is a sectional view taken along the line shown in Fig. 1, Fig. 3 is a partially cutaway front view, and Fig. 4 is a partially cutaway plan view taken along the line taken in Fig. 3. FIG. DESCRIPTION OF SYMBOLS 1...Fixing member, 11...Lever shaft, 2...Operation lever, 2a...Boss part, 23...Cavity part, 5
... recessed part, 6 ... locking body, 9 ... elastic plate.

Claims (1)

[Scope of utility model registration request] In a speed change operation device in which an operating lever is rotatably supported on a fixed member having a lever shaft, and one end of an operating wire is supported on the lever, a boss portion of the operating lever is provided with a hollow portion, and the boss portion is provided with a hollow portion. a recessed part in one of the boss part and the fixing member, with the part facing the fixing member;
A gear shift operation device further comprising a locking body that engages with the recessed portion on the other side, and an arc-shaped elastic plate that urges the locking body toward the recessed portion inside the hollow portion. .