JPH0440978Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a chatter vibration prevention device for a shift lever of an automobile according to the invention.

(Prior Art) Conventionally, in order to prevent chatter vibration of the shift lever of an automobile, the retainer of the shift lever is supported by a vibration isolating member, but this method does not allow the shift lever to fully achieve the vibration damping effect. There were drawbacks such as poor shift operability and loss of moderation when shifting. In addition, as prior art documents, there are Utility Model Application Publication No. 59-186128 and Utility Model Application No. 60-58532.

(Problems to be Solved by the Invention) An object of this invention is to provide a shift lever chatter vibration prevention device that sufficiently prevents chatter vibration without deteriorating the shift operability and sense of moderation of the shift lever.

(Means for Solving the Problems) In order to solve the above problems, the shift lever chatter vibration prevention device of the present invention is configured as follows.

That is, a retainer that supports the shift lever in an operable manner is attached to a coupling member connected to the transmission side, and a first A vibration isolating member is disposed, and a second vibration isolating member having a higher spring constant than the first vibration isolating member is disposed between a surface of the coupling member and the retainer that is substantially orthogonal to a surface on which the first vibration isolating member is disposed. Among the surfaces of the coupling member and the retainer on which the vibration isolating member is disposed and the second vibration isolating member is disposed, one surface and the second vibration isolating member are directly attached, A low-friction member disposed substantially parallel to the other surface is interposed between the other surface and the second vibration isolating member.

(Function) The chatter vibration of the shift lever is caused by the vertical vibration of the transmission, but this vibration is absorbed by the first vibration isolating member, and the first vibration isolating member reduces shift operability when operating the shift lever. This is prevented by the second vibration isolating member. The vibration isolating pieces constituting the second vibration isolating member are in contact with each other via the low friction members attached to them, so when the transmission vertically vibrates, the vertical vibrations between the retainer side and the transmission side Since the relative displacement in the direction is relatively free, the function of the first vibration isolating member is not impaired.

(Description of Embodiments) This invention will be explained below with reference to drawings showing embodiments. The large ball portion 1a of the shift lever 1 is supported by a retainer 6 via a bush 5. Large ball section 1a
is subjected to the pressing force of the presser plate 3 via the spring 4. The holding plate 3 is fixed to the retainer 6 with screws 14. The end of a boot 2 is attached to the shift lever 1 and retainer 6, thereby preventing dust and mud from adhering to the presser plate 3 and spring 4. Retainer 6
The end portion 6a is a block portion of a rectangular parallelepiped,
It is inserted into a space 16 formed by an angled joint 10a formed at one end of the joint member 10 and a presser member 11 fixed to the joint 10a with a bolt 15. In the space 16, first vibration isolating members 7, 7 having a low spring constant are vulcanized and bonded to the upper and lower surfaces of the end portion 6a of the retainer 6, the horizontal member 10b of the joint portion 10a, and the pressing member 11. Second vibration isolating pieces 8 and 9 having a higher spring constant than the first vibration isolating member 7 are vulcanized and bonded to the rectangular member 10c of the joint portion 10a and the end portion 6a of the retainer 6 facing thereto. , low friction materials 12 and 13 are vulcanized and bonded to the opposing surfaces of the vibration isolating pieces 8 and 9, respectively, and are in contact with each other. The other end of the coupling member 10 is coupled to a transmission case (not shown). Vibration isolation pieces 8, 9 and low friction materials 12, 13
A second vibration isolating member is configured.

In the above configuration, vertical vibration of the transmission (not shown) is transmitted to the coupling member 10, but the transmission to the retainer 6 is blocked by the first vibration isolating member having a low spring constant. On the other hand, by operating the shift lever 1, the connecting member 1 is moved from the retainer 6 to the connecting member 1.
The forces transmitted to the vehicle in the longitudinal and lateral directions are propagated orthogonally to the second vibration isolating member having a high spring constant. Therefore, the high spring constant of the second vibration isolating member functions effectively, and the operating feeling of the shift lever 1 is not impaired.

Furthermore, the chatter vibration of the shift lever 1, which is the focus of this embodiment, is caused by the vertical vibration of the transmission being input to the retainer 6, and the vertical forcing force due to this vibration is is input to the vibration isolating pieces 8, 9 constituting the second vibration isolating member, this force is applied to the low friction members 12, 1 from one of the vibration isolating pieces 8, 9 to the other.
3 through the frictional force between them. Therefore, this force is attenuated by the friction between the vibration isolating pieces 8, 9 and the low-friction members 12, 13, and the retainer 6 is prevented from vibrating due to the large force. Note that the vertical force transmitted from the coupling member 10 to the retainer 6 through the first vibration isolating member 7 is effectively attenuated by the first vibration isolating member 7 having a low spring constant. These things prevent chatter vibration of the shift lever 1.

(Effects of the invention) Since this invention has the above-mentioned configuration, it has the effect of preventing chatter vibration without impairing the operability of the shift lever.

[Brief explanation of the drawing]

FIG. 1 shows a front sectional view of an embodiment of this invention, and FIG. 2 shows an enlarged view of section A in FIG. 1...shift lever, 6...retainer, 7...
Vibration isolating member, 8... Vibration isolating piece, 9... Vibration isolating piece, 11...
...Low friction member, 12...Low friction member.

Claims (1)

[Scope of utility model registration request] A retainer that supports the shift lever in an operable manner is attached to a coupling member connected to the transmission side, and a first
A vibration isolating member is disposed, and a second vibration isolating member having a higher spring constant than the first vibration isolating member is disposed between a surface of the coupling member and the retainer that is substantially orthogonal to a surface on which the first vibration isolating member is disposed. Of the surfaces of the coupling member and the retainer on which the vibration isolating member is disposed and the second vibration isolating member is disposed, one surface and the second vibration isolating member are directly attached, A shift lever chatter vibration prevention device characterized in that a low friction member is interposed between the other surface and the second vibration isolating member and is arranged substantially parallel to the other surface.