JPH0429153Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Purpose of the Invention] (Field of Industrial Application) This invention relates to a support device for a change lever of a vehicle.

(Prior Art) An example of a support device for a floor shift type change lever is shown in "Nissan Service Bulletin" No. 472 (K10-1), page 84.

This will be illustrated and explained in FIGS. 4 and 5.

A lever bracket 1 is mounted near the end of a support rod 2 of a transmission in a vehicle body, and a socket 3 is fixed to the lever bracket 1. The change lever 4 is supported by this socket 3.

The change lever 4 is rotatably connected at its lower end to a control rod 5 of a transmission (not shown), and has a knob 6 attached to its upper end. A spherical part 7 constituting the center of tilting operation of the change lever 4 is formed near the lower end of the intermediate part, and this spherical part 7 is supported within the socket 3.

As shown in detail in FIG. 5, a spherical bearing 8 is incorporated in the socket 3, and the spherical portion 7 of the change lever 4 is connected from above and below by a lower bearing 9 and an upper bearing 10 that constitute this spherical bearing 8. Supported. And Atsupah Bearing 10
is in elastic contact with the spherical body part 7 by a coil spring 11.

Note that 12 is a dust boot, and 13 is a return spring for the change lever.

However, in such a conventional change lever support device, only the upper bearing 10 can move up and down in response to the vertical vibration of the spherical part 7 transmitted from the transmission side. When it moves upward, it floats up from the lower bearing 9, and as it moves downward, it collides with the lower bearing 9, and the repetition of this floating up and collision produces abnormal noise, which is the cause of cabin noise. I was getting used to it. Also change lever 4
There was also a risk that the quality would be impaired due to the repeated vertical movement of the material.

Therefore, the applicant filed the previous utility model registration application (Utility Model No. 73296, filed on May 17, 1985).
proposed a new structure for a change lever support device.

The change lever support device of this earlier application is the sixth
This is schematically illustrated in FIGS.

A socket 3 is fixed to the lever bracket 1 with a screw 14, and a spherical bearing 1 that supports the spherical part 7 of the change lever 4 is installed in the socket 3.
5 is loaded while being held by an elastic body 16.

This spherical bearing 15 is composed of symmetrical bearings 17 and 18 divided into left and right parts. Each of the pair of left and right bearings 17 and 18 has a semi-cylindrical shape, and a semi-concave spherical surface 19 that slides on the spherical portion 7 is formed inside.

Also, the opposing end surfaces 2 of the bearings 17 and 18
0 and 21 have convex portions 2 for forming dam means.
3 and a recess 24 are formed. Therefore,
The outer circumferential surface 25 of the convex portion 23 is the inner circumferential surface 26 of the concave portion 24.
Slidingly aligns with.

The elastic body 16 is made of vibration-proof rubber and has a substantially cylindrical shape in order to hold the spherical bearing 15 therein.

In this change lever support device, when vibration from the transmission is transmitted and the spherical part 7 of the change lever 4 moves up and down, (Fig. 8) a
As shown in FIG. 2, the upper portions of the left and right bearings 17 and 18 move outward to the left and right due to the upward force of the spherical part 7, and with this movement, the semi-concave spherical surfaces 19 of each of the bearings 17 and 18 It slides on the spherical part 7, and the lower parts of the bearings 17 and 18 move inwardly to the left and right.

Therefore, the spherical portion 7 is supported without coming loose from the semi-concave spherical surfaces 19 of the bearings 17 and 18 of the spherical bearing 15.

Further, as shown in FIG. 8b, the left and right bearings 17 and 18 are
The lower portions of the spherical bearings 15 move outward to the left and right, and the upper portions thereof move inward to the left and right, and the spherical portion 7 moves to the bearings 17 and 1 of the spherical bearing 15 in the same way as above.
8 is supported without coming loose from each semi-concave spherical surface 19.

Following the movement of the left and right bearings 17 and 18, the elastic body 16 made of anti-vibration rubber undergoes elastic deformation, and the spherical part 7 absorbs the force applied to the spherical bearing 15, damping the vertical movement of the spherical part 7. let

As a result, the change lever support device of the prior application can prevent the spherical portion 7 of the change lever 4 from vibrating within the socket 3 and colliding directly with the socket 3, thereby preventing the generation of impact noise, and also prevents vertical movement. It is also possible to effectively absorb accompanying vibrations.

However, in the change lever support device of this prior application, the spherical bearing is divided into left and right parts, and is loaded into a socket while being held elastically, and the spherical bearing of the change lever is There is a possibility that the bearings may come into contact with a particularly strong force between the left and right bearings, but this point has not been taken into consideration.

Therefore, when supporting the spherical part, the spherical bearings are essentially supported at two points on the left and right bearings, and when the change lever is tilted,
There is a risk that the frictional resistance will be directional.

(Problems to be solved by the invention) This invention was devised based on the above consideration.The spherical part of the change lever can be supported at multiple points, and the frictional resistance against the spherical part can be To provide a support device for a change lever that prevents damage from occurring.

[Structure of the invention] (Means for solving the problem) The change lever support device of this invention has a spherical bearing mounted in a socket supported by an elastic body. A plurality of grooves are formed.

(Function) In the change lever support device of this invention, when receiving force from the spherical part of the change lever, the spherical bearing deforms using the grooves on its outer periphery as nodes.
The spherical part is supported by a spherical bearing that is essentially made up of many small pieces separated between adjacent grooves, supporting the spherical part of the change lever at multiple points and eliminating the directionality of frictional resistance. It can be done.

(Example) Hereinafter, an example of this invention will be explained in detail based on the drawings. 1 to 3 show an embodiment of this invention, and the same parts as those shown in the conventional example and the apparatus of the prior application are designated by the same reference numerals.

A socket 3 is fixed on the lever bracket 1, and a spherical bearing 27 is loaded in the socket 3 while being held by an elastic body 16.

This spherical bearing 27 includes a pair of left and right bearings 2.
It is composed of 8 and 29 and has an approximately cylindrical shape.

The inner peripheral surfaces of each of the bearings 28 and 29 are semi-concave spherical surfaces 30. Furthermore, a convex portion 32 and a concave portion 33 that fit into each other are formed on opposing end surfaces 31 of the bearings 28 and 29.

Therefore, when the left and right bearings 28 and 29 are opposed to each other and the end surfaces 31 and 31 are aligned, the outer circumferential surface of the convex portion 32 is slidably fitted into the inner circumferential surface of the concave portion 33. Therefore, internal grease is prevented from flowing out from this joined end face portion.

Further, the left and right bearings 28 of the spherical bearing 27,
A cut groove 34 is formed on the outer periphery of each of the grooves 29 in the vertical direction at the intermediate portion in the circumferential direction. In this way, by providing the cut groove 34 at the center of the outer circumference of each bearing 28, 29, this cut groove 3
The part 4 is easily deformed due to the pressure applied from the inside and outside, and in particular, the spherical part 7 is no longer supported at two points at this central part, and the left and right bearings 28, 29 are further divided into small pieces at the cut groove 34. The spherical part 7 is supported in this way.

In the change lever support device with the above configuration,
The spherical portion 7 of the change lever 4 is fitted and supported within the spherical bearing 27.

Therefore, when a vertical force is applied to the spherical part 7 due to the vibration from the control rod 5 as explained in the previous application, the left and right divided spherical parts are Bearing 2
The bearings 28 and 29 of 7 damp the vertical vibration of the spherical part 7, prevent the generation of abnormal noise caused by the spherical part 7 directly colliding with the socket 3, and also reduce the quality of the spherical part due to the collision. It can also prevent the deterioration of

If the spherical bearing 27 is simply divided into the left and right bearings 28, 29, the left and right end surfaces 31, 31 become free ends, so that the bearings 28, 29 are separated from the spherical part 7. The central part may make strong contact, resulting in a so-called two-point support, but by providing the cut groove 34 in this central part, the strong frictional force at the central part is dispersed to the left and right, and the spherical part 7 can be It can be made into a point-supported form.

Therefore, there is no directionality in the frictional resistance against the spherical portion 7, and the directionality of the resistance during the tilting operation of the change lever 4 can be eliminated, and the operational feeling can be improved.

In the above embodiment, the spherical bearing is constituted by a pair of left and right bearings, but the spherical bearing is not particularly limited to this configuration. Therefore,
It may be a cylindrical spherical bearing with one portion separated.

In the case of such a spherical bearing that is separated at one location, vertical grooves are formed at multiple locations equally spaced apart in the circumferential direction, and the spherical portion 7 is supported at multiple points. You can do it like this.

This invention is not limited to the above embodiments, and various modifications can be made within the scope of the technical idea described in the claims of the utility model registration.

[Effects of the invention] Since this invention has the above-mentioned configuration, the spherical part of the change lever can be evenly supported at multiple points of the spherical bearing, thereby eliminating the directionality of frictional resistance against the spherical part. I can do it. Therefore, it is possible to improve the operational feeling when performing a shift operation using the change lever.

[Brief explanation of the drawing]

Fig. 1 is a sectional view of an embodiment of this invention, Fig. 2 is a sectional view taken along the line - - in Fig. 1, Fig. 3 is an exploded perspective view of the spherical bearing portion of the above embodiment, and Fig. 4 is a conventional example. 5 is a partially cutaway side view showing the main parts of the conventional example, FIG. 6 is a partially cutaway side view showing the main parts of the device of the earlier application, and FIG. 7 is a side view of the device of the earlier application. FIG. 8, an exploded perspective view of the spherical bearing, is an explanatory view showing the operation of the device of the prior application. 1...Socket, 4...Change lever, 7...
... Spherical part, 16 ... Elastic body, 27 ... Spherical bearing,
28, 29...Bearing, 30...Semi-concave spherical surface,
34...kerf.

Claims (1)

[Scope of utility model registration request] A spherical bearing with a concave spherical inner surface is loaded into a socket fixed to a fixed member, with its outer periphery held by an elastic body, and the spherical part that forms the center of tilting operation of the change lever is inserted into this spherical bearing. In the support device for a change lever, the spherical bearing is separated at at least one location in the circumferential direction, and the spherical bearing is vertically disposed at multiple locations in the circumferential direction other than the separated portion on the outer periphery. A support device for a change lever, characterized by having a directional cut groove.