JPH07133864A - Joint structure for shift lever and transmission - Google Patents

Abstract

PURPOSE:To provide a preventive effect along both a longitudinal direction and an orthogonal direction, keep small resistance for operation and prevent the wear of an elastic member. CONSTITUTION:Slide members 35 in contact with a cylinder section 33 over an area from an edge 33a to an internal surface 33b is combined with both ends thereof, while respective gaps S1 and S2 being formed between an opposite piece 32a and a shaft section 34. Furthermore, elastic members 36 in such state as pressed with the slide members 35 in a lengthwise direction Y and/or a direction X orthogonal therewith are laid at both ends of the shaft section 34 where the displacement of the slide members 35 along the X and Y directions is received.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for connecting a link of a shift lever used in a vehicle and a shift operating member of a transmission by using a joint.

[0002]

2. Description of the Related Art As a conventional connecting structure of a shift lever and a transmission, ones shown in FIGS. 3 and 4 are known (for a similar technique, see Japanese Patent Laid-Open No. 3-209054).

That is, an extension rod 3 and a link 4 are arranged between the shift lever 1 and the transmission 2. The plate 5 is at the rear end of the extension rod 3.
Is fixed to the vehicle body side member 7 via an elastic body 6. A bearing 8 is provided on the plate 5, and the bearing 8 supports the support portion 1 a of the shift lever 1. The front end of the extension rod 3 is a cylindrical portion 9, and the cylindrical portion 9
However, the vibration isolator 11 is attached to the bracket 10 protruding from the transmission 2.
Are connected via.

The rear end of the link 4 is connected to the lower end of the shift lever 1 via a joint 12. The link 4 and the gear shift operation member 13 of the transmission 2 are connected by a joint 14 in a state substantially along the longitudinal direction Y of both. The joint 14 is formed by connecting a first joint 15 on the front side and a second joint 16 on the rear side and integrating them. Both the first joint 15 and the second joint 16 are U-shaped bifurcated portions 17 and 18 provided with shaft portions 19 and 20 between a pair of opposed pieces 17a and 18a,
The bifurcated portions 17 and 18 are formed by cylindrical portions 21 and 22 which are attached in such a manner that the shaft portions 19 and 20 penetrate therethrough,
It is integrated by connecting both cylindrical parts 21 and 22. The cylindrical portions 21 and 22 are connected to each other at an angle orthogonal to each other in a plane along the orthogonal direction X (direction orthogonal to the longitudinal direction Y), and the first joint 15
The second joint 16 and the second joint 16 are symmetrical with respect to each other, and the bifurcated portions 17 and 18 of the second joint 16 are connected to the gear shift operation member 13 and the link 4, respectively.

By connecting the shift operating member 13 and the link 4 with the joint 14 as described above, the shift operating force for moving the shift lever 1 back and forth and the select operating force for moving left and right are surely applied to the shift operating member 13. It can be communicated.

Of the first joint 15 and the second joint 16 constituting the joint 14,
The second joint 16 on the rear side has an internal structure as shown in FIG. That is, the shaft portion 20 of the second joint 16 is composed of a bolt 20a that penetrates the pair of opposed pieces 18a of the forked portion 18 and a collar 20b that is mounted on the bolt 20a. Has a nut 20c fixed thereto. And color 20b
Ring-shaped position restricting members 23 that restrict the displacement of the cylindrical portion 22 in the longitudinal direction Y and the orthogonal direction X are provided at both ends of each. The position restricting member 23 is made of synthetic resin and is in contact with the end surface 22a of the cylindrical portion 22, but a certain gap S is secured between the position restricting member 23 and the inner surface 22b. Further, a ring-shaped elastic member 24 slidably abutting the inner surface 22b of the cylindrical portion 22 is provided at substantially the center of the collar 20b.
Are joined. The elastic member 24 is made of rubber, and two ribs 24a are continuously formed on the outer side of the elastic member 24. The rib 24a abuts the cylindrical portion 22 with a small area.

With such a structure, for example, when the shift lever 1 is tilted to the front side and a shift operation is performed to move the link 4 to the rear side, the elastic member 24 is deformed in the range of the gap S and the position regulating member. Since 23 hits the inner surface 22b of the cylindrical portion 22, the shift operation force is changed from the collar 20b to the position restricting member 23 to the cylindrical portion (of the second joint 16) 22.
It is transmitted to the cylindrical portion (of the first joint 15) 21, and finally transmitted to the speed change operating member 13 via the first joint 15 on the front side.

Further, in the case of this shift operation, since the lower end of the shift lever 1 makes an arc motion along the longitudinal direction Y around the support portion 1a, the structure on the forked portion 18 side (bolt 20a, collar 20b, Position regulating member 23, elastic member 2
4) rotates relative to the cylindrical portion 22, but the contact area between the elastic member 24 and the cylindrical portion 22 is small, so that a large operation resistance does not occur. When comparing the first joint 15 on the front side and the second joint 16 on the rear side, the second joint 16 on the rear side has a larger relative rotation amount than the first joint 15 on the front side. In the second joint 16, it is necessary to reduce the frictional resistance between the elastic member 24 and the cylindrical portion 22 as described above. Furthermore, since such an elastic member 24 is provided,
Of the vibration applied from the transmission 2 to the gear shift operation member 13, the vibration component in the longitudinal direction Y is reduced by the elastic member 24 and does not easily reach the shift lever 1.

When the select operation for moving the link 4 along the orthogonal direction X is performed, the lower end of the shift lever 1 makes an arc motion along the orthogonal direction X, so that the link 4 is twisted to select the direction. Operational force is added. Such a select operation force is applied from the position regulating member 23 to the end surface 22 of the cylindrical portion 22.
a is directly transmitted to a, and finally the front side first joint 1
It is transmitted to the speed change operation member 13 via the transmission gear 5. Since the operation force of the select operation is transmitted by direct contact between the position restricting member 23 and the cylindrical portion 22, the select operation has a sense of rigidity.

[0010]

However, in such a conventional technique, the structure in which the end face 22a of the cylindrical portion 22 is brought into contact with the position regulating member 23 is adopted in order to obtain a sense of rigidity during the selection operation. And the position regulating member 2
Since 3 is made of a synthetic resin, it is not possible to obtain the vibration damping effect for the vibration component in the orthogonal direction X of the vibration applied from the speed change operation member 13. That is, the vibration component in the orthogonal direction X transmitted from the gear shift operation member 13 is transmitted to the link 4 and the shift lever 1 via the joint 14 as it is. If the position restricting member 23 is made of an elastic member instead of synthetic resin, such vibration in the orthogonal direction X can be reduced, but then, the sliding resistance between the position restricting member made of the elastic member and the cylindrical portion 22 will be improved. Is increased and the shift operation of the shift lever 1 becomes heavy, which is not preferable.

Further, as described above, the end surface 2 of the cylindrical portion 22 is
When the structure in which 2a is brought into contact with the position regulating member 23, the contact force between the position regulating member 23 and the end surface 22a of the cylindrical portion 22 increases more than necessary due to a component accuracy error, overtightening of the bolt 20a, and the like. Even the anti-vibration effect in the longitudinal direction Y may be lost.

Further, since the elastic member 24 and the inner surface of the cylindrical portion 22 rub against each other each time the shift lever 1 is operated to shift,
The ribs 24a of the elastic member 24 gradually wear out, and the longitudinal direction Y
The anti-vibration effect in the is gradually reduced.

The present invention has been made by paying attention to such a conventional technique, and it has a shift lever which has an effect of preventing in both the longitudinal direction and the orthogonal direction, has a small operation resistance, and does not wear the elastic member. A connection structure for a transmission is provided.

[0014]

In order to achieve the above-mentioned object, a shift lever-transmission coupling structure according to the present invention has a sliding member that abuts both ends of a cylindrical portion from its end face to its inner face. , With a gap provided between the facing piece and the shaft, and at both ends of the shaft, a position for receiving the displacement of the sliding member in the longitudinal direction (such as the speed change member) and the direction orthogonal thereto. , The elastic member being pressed by the sliding member in the longitudinal direction and / or the orthogonal direction,
It is provided.

[0015]

According to the present invention, since the elastic members provided at both ends of the shaft portion are pressed by the sliding members, the bifurcated member is moved relative to the cylindrical portion along with the shift operation. Even if it is turned, the sliding does not occur between the shaft portion and the elastic member, and the sliding occurs between the sliding member and the cylindrical portion. Therefore,
The elastic member is not worn out and the anti-vibration effect is not lost,
Also, since the sliding resistance between the sliding member and the cylindrical portion is small,
The shift lever operation force is also small.

An elastic member is provided at a position for receiving the displacement of the sliding member in the longitudinal direction and the direction orthogonal thereto.
Further, since a gap is provided between the sliding member and the facing piece or the shaft portion, the shaft portion is elastically coupled to the sliding portion (cylindrical portion) within the range of each gap. A reliable vibration damping effect can be obtained in both the longitudinal direction and the orthogonal direction.

Since the operating force applied from the shaft portion in the longitudinal direction and the orthogonal direction is surely transmitted to the sliding member (cylindrical portion) even if the elastic member is interposed, the transmission operation is highly reliable. The state is obtained. Moreover, since the elastic member is in a pressed state and the spring constant of the elastic member itself is high, an appropriate sense of rigidity can be obtained when operating the shift lever.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of the present invention will be described below with reference to FIGS. The same parts as those in the prior art are designated by the same reference numerals, and a duplicate description will be omitted. In the following description, the longitudinal direction (corresponding to the vehicle front-rear direction) of the link 4 and the speed change operation member 13 is Y, and the direction orthogonal thereto (vertical direction, vertical direction, diagonal direction) is X, and
Among them, the vertical direction in the vertical direction is X ₁ , and the vertical direction in the horizontal direction is X ₂ .

The joint 25 according to this embodiment is also formed by integrally forming the first joint 26 and the second joint 27 on the front side. First of all, based on FIG.
The joint 26 will be described. Gear shifting operation member 1 of transmission
The forked portion 28 to which 3 is connected is in a state along the vertical direction, and the bolt 2 is provided between the pair of opposed pieces 28a.
9a penetrates. This bolt 29a has a collar 29
b is externally mounted, and the nut 29 is attached to the lower end of the bolt 29b.
c is fixed. The shaft 29 of the first joint 26 is formed by the bolt 29a and the collar 29b.

On the other hand, inside the bifurcated portion 28, there is provided a cylindrical portion 30 in which the bolt 29a and the collar 29b as the shaft portion 29 penetrate. And this cylindrical portion 30
Elastic members 31 made of rubber are provided on both ends between the collar 29b and the collar 29b. A part of the elastic member 31 also wraps around the facing piece 28a, restricts the displacement of the cylindrical portion 30 in the longitudinal direction Y and the orthogonal direction X ₁ thereof, and at the same time, increases the length of the shifting operation member 13. It serves to reduce vibrations in the direction Y and its orthogonal direction X ₁ . Even if the elastic member 31 having such a large contact area is provided between the cylindrical portion 30 and the collar 29b, the first joint 26 has the collar 29a and the cylindrical portion 30 as compared with the second joint 27 on the rear side. Since the relative amount of rotation of the shift lever is small, the operation resistance of the shift lever, which is not shown, is not increased so much.

Next, the second joint 27 will be described. The forked portion 32 of the second joint 27 is along the horizontal direction, and the link 4 for transmitting the operating force in the shift direction and the select direction from the shift lever (not shown) has the forked portion 3.
Connected to 2. The cylindrical portion 33 is connected to the cylindrical portion 30 of the first joint 26 at an angle orthogonal to each other in the plane of the orthogonal direction X. In the bifurcated portion 32 on the second joint 27 side, the shaft portion 34 including the bolt 34a and the collar 34b is attached between the pair of opposed pieces 32a,
A nut 34c is fixed to the tip of the bolt 34a.

Further, at both ends of the cylindrical portion 33, there are provided sliding members 35 having a substantially L-shaped cross section, which abut on from the end surface 33a to the inner surface 33b. The sliding member 35 is made of synthetic resin, and a lip 35a is formed so as to cover a part of the outer surface of the cylindrical portion 33 from the portion contacting the end surface 33a of the cylindrical portion 33. Further, a convex portion 35b is formed at an end portion near the center of a portion that abuts the inner surface 33b of the cylindrical portion 33, and a concave portion 35c that engages with an elastic member 36 described later is formed at both end portions.

On the other hand, at both ends of the collar 34b, to a position to receive the displacement in the longitudinal direction Y and a direction perpendicular thereto X ₂ of the sliding member 35, the elastic member 36 of the cross-sectional schematic L-shaped is provided. The elastic member 36 includes a sliding member 35 and a facing piece 32.
By having this portion enter into the space between the sliding member 35 and the concave portion 35c of the sliding member 35, the displacement of the sliding member 35 in the longitudinal direction Y and its orthogonal direction X ₂ is regulated. ing. Further, a convex portion 36 a is formed on the end portion of the elastic member 36 near the center, and the convex portion 36 a is also in contact with the sliding member 35. This elastic member 36 is
Between the b and the sliding member 35, and between the facing piece 32a and the sliding member 35, the sliding member 35 presses them with a constant pressure. Then, with the sliding member 35 thus combined with the elastic member 36, the sliding member 35 and the collar 34b are
And between the sliding member 35 and the facing piece 32a,
The gaps S ₁ and S ₂ are secured respectively.

Next, the function of the second joint 27 will be described. Operation force transmission function: In the second joint 27 of this embodiment, as described above, the portion of the elastic member 36 that is in contact with the facing piece 32a engages with the concave portion 35c of the sliding member 35 and the elastic member 36. Since the convex portion 36a of the elastic member abuts on the sliding member 35, the corresponding portions of the elastic member 36 are respectively interposed between the sliding member 35 and the collar 34b and between the sliding member 35 and the facing piece 32a. It will be. Therefore, when an operation force in the longitudinal direction Y (shift operation) or an operation force in the orthogonal direction X ₂ (selection operation) is applied from the link 4 to the bifurcated portion 32, the collar 34a and the facing piece 32a are separated by the gaps S ₁ , S _2. After the elastic member 36 is crushed by the amount corresponding to, the operating force can be transmitted to the cylindrical portion 33 by hitting the sliding member 35. Then, the cylindrical portion 3 of the second joint 27
The operating force applied to 3 is directly transmitted to the speed change operating member 13 via the first joint 26, and the necessary operation of the transmission (not shown) can be performed. In this way, since the collar 34a and the facing piece 32a contact the sliding member 35 immediately after the elastic member 36 is deformed, a gear shift operation with a sense of rigidity can be performed. Further, the fact that the elastic member 36 is pressed and the spring constant of the elastic member 36 itself is increased to some extent is also one of the factors that improve the sense of rigidity.

Anti- vibration function: Also, as described above, between the sliding member 35 and the collar 34b and between the sliding member 35 and the facing piece 3
Corresponding portions of the elastic member 36 are respectively interposed between the sliding member 35, the collar 34b and the facing piece 3a.
Since the gap S _1, S ₂ each is provided between 2a, wherein the bifurcated portion 32 and the cylindrical portion 33 gap S _1, S ₂
Within the range of, the state is elastically coupled. Therefore, even if vibration is applied from the speed change operation member 13, both the longitudinal direction Y component and the orthogonal direction X ₂ component of the vibration are reduced by the elastic member 36, and only the vibration damping effect of the longitudinal direction Y component is obtained. Comprehensive anti-vibration effect can be obtained compared to the conventional method that has not been achieved.

Wear-preventing function: Further, since the elastic member 36 is pressed by the sliding member 35, even if the collar 34b is rotated relative to the cylindrical portion 33 due to, for example, a shift operation. The sliding does not occur between the collar 34b and the elastic member 36, and the sliding occurs between the hard sliding member 35 and the cylindrical portion 33. Therefore, the elastic member 3
Since 6 does not wear, the longitudinal direction Y as described above
And the anti-vibration effect in both the orthogonal direction X ₂ is not impaired.

Reduction of operating force: Further , with respect to the sliding between the sliding member 35 and the cylindrical portion 33 due to the shift operation in this way, since the sliding partner of the cylindrical portion 33 is the sliding member 35 made of synthetic resin, The sliding resistance between them is small, and therefore the shift operation force of the shift lever can be small. Particularly, the second joint 2 having a larger relative rotation amount than the first joint 26.
Since the sliding resistance of No. 7 can be reduced, the operating force can be efficiently reduced.

Waterproof function: In the first joint 26 and the second joint 27, in order to maintain their respective performances,
It is necessary to prevent water from entering the cylindrical portions 30 and 33. In the case of the first joint 26, since the relative rotation is not so large, only by providing the elastic member 31, the required waterproof effect can be obtained. In the case of the second joint 27, the relative amount of rotation is large, which is disadvantageous in terms of the waterproof function, but as described above, the elastic member 36 of the second joint 27 is moved by the sliding member 35 in the longitudinal direction Y. And orthogonal direction X ₂
Since they are pressed in each,
Watertightness is secured between the cylindrical portion 33 and the collar 34b and between the cylindrical portion 33 and the facing piece 32a, respectively.
It is possible to reliably prevent water from entering the inside. Moreover, since the sliding member 35 is formed with the lip 35a that covers a part of the outer surface of the cylindrical portion 33, the waterproof function is further enhanced.

The structure of this embodiment is as described above, but the following modifications are possible.

Although an example in which the elastic member 36 is pressed by the sliding member 35 in both the longitudinal direction Y and the orthogonal direction X ₂ has been shown, the elastic member 36 is pressed only in one of the longitudinal direction Y and the orthogonal direction X _2. It may be done.

When a shift operation or a select operation is performed,
The structure in which the collar 34b and the facing piece 32a push the elastic member 36 by the gaps S ₁ and S ₂ and then directly contact the sliding member 35 to transmit the operating force, the gaps S ₁ and S ₂ taken large-pushing collar 34b and the counter piece 32a is an elastic member 36 in the longitudinal direction Y and perpendicular direction X _2, and with the sliding member 35 is pushed by the elastic member 36, a structure in which the operation force is transmitted May be.

Although only the second joint 27 on the rear side uses the elastic member 36 and the sliding member 35, the first joint 26 on the front side may have the same structure as the second joint 27. Depending on the first joint 26
Only the structure described above may be adopted.

First joint 26 and second joint 27
Although the joint 25 composed of and is taken as an example, the first joint 26 is omitted, and the shift operating member 13 is replaced by the second joint 2
The structure may be such that it is directly connected to the cylindrical portion 33 of No. 7.

[0034]

The coupling structure of the shift lever and the transmission according to the present invention has the contents described above, and the elastic members provided at both ends of the shaft portion are pressed by the sliding members. Therefore, even if the bifurcated member rotates with respect to the cylindrical portion due to the shift operation, sliding does not occur between the shaft portion and the elastic member, and the sliding is performed by the sliding member. Between the cylinder and the cylinder. Therefore, the elastic member is not worn and the anti-vibration effect is not impaired, and the sliding resistance between the sliding member and the cylindrical portion is small, so the operating force of the shift lever can be small.

An elastic member is provided at a position for receiving the displacement of the sliding member in the longitudinal direction and the direction orthogonal thereto.
Further, since a gap is provided between the sliding member and the facing piece or the shaft portion, the shaft portion is elastically coupled to the sliding portion (cylindrical portion) within the range of each gap. A reliable vibration damping effect can be obtained in both the longitudinal direction and the orthogonal direction. Therefore, as compared with the conventional case where only the vibration-proofing effect of the longitudinal component is obtained, the comprehensive vibration-proofing effect can be obtained.

Further, since the operating force applied from the shaft portion in the longitudinal direction and the orthogonal direction is surely transmitted to the sliding member (cylindrical portion) even if the elastic member is interposed, the transmission having high reliability. The operation state of is obtained. Moreover, since the elastic member is in a pressed state and the spring constant of the elastic member itself is high, an appropriate sense of rigidity can be obtained when operating the shift lever.

In addition, since the elastic member is pressed by the sliding member in the longitudinal direction and the orthogonal direction, the watertightness between the cylindrical portion and the shaft portion and between the cylindrical portion and the facing piece is maintained. Are secured respectively, and it is possible to reliably prevent water from entering the cylindrical portion.

[Brief description of drawings]

FIG. 1 is a partial cross-sectional side view showing a connecting structure of a shift lever and a transmission according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view taken along the line SA-SA shown in FIG.

FIG. 3 is an overall view showing a conventional connecting structure of a shift lever and a transmission.

FIG. 4 is a cross-sectional view taken along the line SB-SB shown in FIG.

[Explanation of symbols]

4 link 13 speed change operation member 26 1st joint 27 2nd joint 32 forked part 32a facing piece 33 cylindrical part 33a cylindrical end face 33b cylindrical part inner surface 34 shaft part 35 sliding member 36 elastic member Y longitudinal direction X, X ₁ , X ₂ orthogonal direction S ₁ , S ₂ gap

Claims (2)

[Claims] 1. A shift lever link using a joint composed of a bifurcated portion provided with a shaft portion between a pair of opposed pieces and a cylindrical portion mounted in the bifurcated portion with the shaft portion penetrating therethrough. In the structure in which the gear shift operation member of the transmission and the gear shift operation member of the transmission are connected substantially along the longitudinal direction of the both, a sliding member that abuts from the end surface to the inner surface of the cylindrical portion is provided between the facing piece and the shaft portion. Combined in the state where a gap is provided, at both ends of the shaft portion, in the longitudinal direction and / or the orthogonal direction by the sliding member, at positions that receive the displacement of the sliding member in the longitudinal direction and the orthogonal direction thereof. A structure for connecting a shift lever and a transmission, wherein an elastic member in a pressed state is provided. 2. The structure according to claim 1, wherein two joints are connected symmetrically in the front-rear direction so that their cylindrical portions are orthogonal to each other in an orthogonal direction, and at least one of the two joints is integrated. A structure for connecting a shift lever and a transmission characterized in that