JP2519216Y2 - shift lever - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a shift lever, and more particularly to a shift lever capable of improving damping performance, operability and durability.

[Prior art and its problems]

Generally, a shift lever used in an automobile or the like is constructed as shown in FIG.

That is, in the shift lever 91 shown in FIG. 6, the first damper 92 made of an elastic material is fitted to the upper end portion of the shaft 95 connected to the transmission, and below the elastic member, the outer circumference of the annular inner sleeve 96 is elastically fitted. The second damper 93 in which the annular outer sleeve 97 is connected via the material 98 is fitted,
Further, a cylindrical grip portion 94 having a closed upper end is fitted around the outer periphery of the first damper 92 and the second damper 93.

Then, when the driver operates the shift lever 91, the load at that time is transmitted from the grip portion 94 to the shaft 95 of the shift lever 91 via the first damper 92 and the second damper 93, thereby causing the gears in the transmission to move. The combination can be changed.

At this time, the vibration from the engine is transmitted to the shaft 95 of the shift lever 91 via the transmission,
A shaft 95 of the shift lever 91 is provided with a first damper 92 and a second damper 93 made of an elastic material, and vibrations can be absorbed by these dampers 92, 93. It is possible to prevent the vibration from being transmitted from the shaft 95 of the 91 to the handle portion 94, thereby improving the operability when the driver operates the shift lever 91.

However, the shift lever configured as described above
In the 91, the damping effect is exerted only by the damping characteristics of the elastic material of the first damper 92 and the second damper 93 provided between the shaft 95 of the shift lever 91 and the grip portion 94. Therefore, the damping property, operability and durability change significantly depending on the type of elastic material used.For example, when an elastic material with a high spring constant is used, the elastic material becomes hard and the operability is good. The durability is improved as well, but on the other hand, the damping property against vibration is reduced, and when an elastic material with a low spring constant is used, the damping property against vibration is improved, but on the other hand, the elasticity is reduced. The material becomes too soft and the operability deteriorates, and the durability also deteriorates.For example, it is not possible to satisfy all of the damping property and operability and durability. Or Re has a problem that must be sacrificed.

The present invention solves the above-mentioned problems of the conventional ones, and an object thereof is to provide a shift lever capable of improving not only operability and durability but also damping performance. It is what

[Means for solving problems]

In order to solve the above-mentioned problems, the present invention arranges a tubular grip portion on the outside of a shaft connected to a transmission, and fits an inner sleeve on the outer circumference of the shaft, and an inner sleeve on the inner circumference of the grip portion. A shift lever having an outer sleeve fitted therein and having a damper formed of an elastic member connecting the inner sleeve and the outer sleeve, wherein the elastic member has a space between the inner sleeve and the outer sleeve. And a bent portion obtained by bending an axial end portion in a radial direction on one of the inner sleeve and the outer sleeve.

[Operation] By adopting the above-mentioned means in the present invention, the vibration that is about to be transmitted from the shaft of the shift lever to the handle portion is an elastic member or an elastic material that constitutes a damper provided between the shaft and the handle portion. The damping property of the elastic member or the elastic member is limited in the radial direction by the bent portion of the inner sleeve or the outer sleeve, or the surface with which the portion is in contact.

〔Example〕

Hereinafter, an embodiment of the present invention shown in the drawings will be described.

1 (a), 1 (b) and 1 (c) show a first embodiment of a shift lever according to the present invention, which is connected to a transmission. A shaft 32, a first damper 22 fitted to the upper end portion of the shaft 32 at a predetermined distance from the upper end surface thereof, and fitted below the first damper 22 at a predetermined distance. The second damper 23 and the handle portion 31 fitted to the outer circumferences of the first damper 22 and the second damper 23.

The first damper 22 is a disk-shaped stopper member 24 made of an elastic material, which is provided with a recess 33 for fitting the upper end portion of the shaft 32 in the center of the lower surface of the first damper 22, and the outer periphery of the stopper member 24. An annular inner sleeve 25 to be connected, an annular outer sleeve 26 located at a predetermined interval on the outer circumference of the inner sleeve 25, and provided between the inner sleeve 25 and the outer sleeve 26 to provide both. Elastic member 27 connected
It consists of and.

In this case, the elastic member 27 has a hole penetrating in the axial direction.
A plurality of (four in this embodiment) 35 are provided, and the portion near the hole 35 is formed thicker than the other portions.

The stopper member 24, the inner sleeve 25, the elastic member 27, and the outer sleeve 26 are connected to each other by adhesion or vulcanization adhesion.

The second damper 23 has an annular inner sleeve 28 whose upper end and lower end are each curved outward in the radial direction, and an annular outer sleeve located on the outer circumference of the inner sleeve 28 at a predetermined interval. Sleeve 29 and the inner sleeve
The elastic member 30 is provided between the outer sleeve 28 and the outer sleeve 29 and connects them.

In this case, the elastic member 30 has a hole penetrating in the axial direction.
A plurality of (34 in the case of this embodiment) 34 are provided, and the portion near the hole 34 is formed thicker than the other portions.

The inner sleeve 28, the elastic member 30, and the outer sleeve 29 are connected to each other by adhesion or vulcanization adhesion.

 Next, the operation of the above will be described.

First, when the engine is operated, vibration is generated with the operation of the engine, and the vibration is transmitted from the engine to the shaft 32 of the shift lever 21 via the transmission. (The vibration in this case is transmitted as chatter vibration of 150 Hz to 200 Hz) The transmitted vibration is the first damper 22 and the second damper 22 provided between the shaft 32 and the handle portion 31. It is possible to prevent the vibration from being transmitted to the handle portion 31 from the shaft 32 of the shift lever 21 by being absorbed by the damping characteristic of 23.

In this case, for the axial vibration, the first damper
The space 33a formed between the upper surface of the recess 33 of the stopper member 24 of the drawing 22 in the drawing and the upper end surface of the shaft 32 fitted in the recess 33 acts as an air spring. The first stage is to absorb the vibration, and the second stage is to crush the void 33a to start the deformation of the stopper member 24 by its own elasticity. In particular, since the characteristic of the first stage is made sufficiently soft, the vibration in the axial direction can be surely absorbed and the excellent damping property can be exhibited.

Also, with respect to radial vibration, the axially penetrating holes 35 and 34 provided in the elastic members 27 and 30 of the first damper 22 and the second damper 23 are dented in the radial direction, The first stage of absorbing vibrations by returning and deforming, further, the holes 35, 34 are crushed and the elastic member 27,
The second stage, when 30 begins to deform due to its own elasticity,
Further, the elastic members 27, 30 are largely deformed and the inner sleeve
28 curved upper and lower handles, respectively.
The third stage of contact with the inner peripheral surface of the blade has a three-stage characteristic with respect to the radial vibration, and in particular, the first-stage characteristic is sufficiently softened so that the radial vibration Can be reliably absorbed and excellent damping properties can be exhibited.

In the case of chattering vibration, the first stage characteristics can be sufficiently dealt with in both the axial direction and the radial direction. Therefore, the spring constant of the elastic members 27, 30 can be increased to improve operability and durability. Even when the value is improved, the damping property is not lowered thereby, and therefore, it is possible to satisfy all of the damping property, operability and durability.

Further, when the elastic members 27, 30 are largely deformed, the curved upper end and lower end of the inner sleeve 28 come into contact with the inner peripheral surface of the handle 31 due to the characteristics of the third step. Therefore, it is possible to prevent further deformation of the elastic members 27, 30 and improve the durability.

In this embodiment, the first damper 22 and the second damper 23 having different shapes are used.
It goes without saying that the damper 22 and the second damper 23 may have the same shape.

2 (a), 2 (b) and 2 (c) show a second embodiment of the shift lever according to the present invention. In the case of this embodiment, the second embodiment is shown. The outer sleeve 49 of the damper 43 is formed by bending both ends inward in the radial direction. Since other configurations are the same as those of the first embodiment, detailed description of the configuration will be omitted. .

Also in this embodiment, the vibration transmitted in the same manner as in the first embodiment causes the shaft 52 of the shift lever 41 and the grip portion to move.
A first damper 42 and a second damper provided between the first damper 42 and the second
It is designed to be absorbed by the damping characteristics of the damper 43 of.

Also in the case of this embodiment, as in the case of the first embodiment, the upper surface of the recess 53 of the stopper member 44 of the first damper 42 in the drawing and the recess thereof are protected from vibrations in the axial direction. The cavity 44a formed between the upper end surface of the shaft 52 fitted in the cavity 53 acts as an air spring to absorb vibrations, and the cavity 44a is crushed. The stopper member 44 starts to deform due to its own elasticity in the second stage.
Since the characteristic of the first stage is provided and the characteristic of the first stage is sufficiently softened, the vibration in the axial direction can be surely absorbed and the excellent damping property can be exhibited.

Further, as to the vibration in the radial direction, as in the first embodiment, the holes 55, 54 penetrating in the axial direction provided in the elastic members 47, 50 of the first damper 42 and the second damper 43 are formed. The first stage of absorbing vibration by denting or returning to the radial direction, and further, the holes 55, 54 are crushed and the elastic members 47, 50 start to deform due to their own elasticity. The second stage, the third stage in which the elastic members 47, 50 are largely deformed and the curved upper and lower end portions of the outer sleeve 49 are brought into contact with the outer peripheral surface of the shaft 52. In particular, since the characteristics of the first step are sufficiently softened, the vibrations in the radial direction can be reliably absorbed and excellent damping characteristics can be exhibited.

In this embodiment as well, the first-stage characteristic can sufficiently deal with chatter vibration, so that even when the spring constant of the elastic member is set high to improve the operability and durability, the damping property is improved. Therefore, it is possible to satisfy all of the damping property, the operability and the durability.

When the elastic members 47, 50 are greatly deformed, the curved upper and lower ends of the outer sleeve 49 come into contact with the outer peripheral surface of the shaft 52 due to the characteristics of the third step. Further deformation of the elastic members 47, 50 can be prevented, and durability can be improved.

In this embodiment also, the first damper 42 and the second damper 42
It goes without saying that the same shape as the damper 43 may be used.

[Effect of device]

The present invention is configured as described above, and includes an elastic member of the damper, a portion for connecting the entire inner sleeve and the outer sleeve, and a portion having a space in the radial direction.
The first stage in which the space is expanded and contracted in the radial direction by providing the inner sleeve or the outer sleeve with the bent portion in which the axial end portion is bent in the radial direction, the space is crushed and the bent portion becomes a mating member. It is possible to obtain the second stage until the contact and the third stage in which the bent portion contacts the mating member.
Therefore, it is possible to soften the spring constant in the first stage, exhibit damping properties with respect to the input vibration, and improve the durability of the elastic member by abutting the bent portion and improve the operability. it can.

Therefore, it has an excellent effect that it is possible to exhibit an excellent damping property with respect to the input vibration and to satisfy both the operability and the durability.

[Brief description of drawings]

FIG. 1 (a) shows a first embodiment of the shift lever according to the present invention, and is a longitudinal section taken along line VI-VI of FIG. 1 (b) and line VII-VII of FIG. 1 (c). Fig. 1 (b) is a cross-sectional view taken along line V-V in Fig. 1 (a), and Fig. 1 (c) is taken along line IV-IV in Fig. 1 (a). 2A shows a second embodiment of the shift lever according to the present invention, and FIG. 2B shows a XI-XI line and FIG. 2C shows a XX line. 2B is a longitudinal sectional view taken along line IX-IX in FIG. 2A, and FIG. 2C is a horizontal cross-sectional view taken along line IX-IX in FIG. 2A. FIG. 3 is a horizontal sectional view taken along the line VIII-VIII, and FIG. 3 is a vertical sectional view showing a conventional shift lever. 21, 41, 91 …… Shift lever 22, 42, 92 …… First damper 23,43,93 …… Second damper 25,28,45,48,96 …… Inner sleeve 26,29,46, 49, 97 ... Outer sleeve 13, 31, 51, 94, ... Handle 14 ... Sleeve 27, 30, 47, 50 ... Elastic member 32, 52, 95 ... Shaft 24, 44 ... Stopper member 33 , 53, 2a ... recesses 34, 35, 54, 55 ... holes 33a, 44a, ... voids 31a, 51a, 94a ... knobs 36, 56, ... bent portion 98 ... elastic material

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) Reference JP 62-102312 (JP, A) JP 60-81624 (JP, A) JP 58-203529 (JP, A) Actual development 55- 86222 (JP, U) Actual public Sho 61-31861 (JP, Y2)

Claims (1)

(57) [Scope of utility model registration request] 1. A shaft (32, 5) connected to a transmission.
2) A cylindrical grip portion (31, 51) is arranged outside of 2), and an inner sleeve (28, 48) is fitted around the shaft (32, 52) to form the grip portion (31, 51). The outer sleeve (29,
Shift lever provided with a damper (23, 43) having an elastic member (30, 50) for fitting the inner sleeve (28, 48) and the outer sleeve (29, 49) together. In the elastic member (30, 50), a portion having a space between the inner sleeve and the outer sleeve is formed, and the inner sleeve (28, 48) or the outer sleeve (29, 4) is formed.
9) One side has a bent part (3
6, 56) equipped with a shift lever.