JPH0716923Y2 - Anti-vibration structure of shift lever retainer - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to a shift lever retainer in which a vibration-proof sheet is interposed between a transmission lever case and a shift lever retainer that spherically supports a shift lever for shift operation. Regarding anti-vibration structure.

<Prior Art> Conventionally, a shift lever retainer that spherically supports a shift lever of a transmission case so that it can be shift-operated is installed in a transmission case via a vibration-proof sheet as disclosed in, for example, Japanese Utility Model Laid-Open No. 61-101036. It is fixed and absorbs vibration by elastic deformation of the interposed anti-vibration sheet to prevent transmission of vibration from the transmission side to the shift lever side.

<Problems to be Solved by the Invention> However, in the vibration isolation structure of the shift lever retainer disclosed in the above publication, although the elastic deformation of the vibration isolation sheet is allowed to some extent to absorb the vibration, basically the mounting is basically performed. Since the shift lever retainer is integrally fixed to the transmission case with bolts, the rigidity at the spherical support point of the shift lever becomes relatively high,
For this reason, there has been a problem that the shift operation of the shift lever is stiff and cramped and the operation feeling is impaired.

The present invention has been made in view of the background as described above, and an object thereof is to provide a vibration-proof structure for a shift lever retainer, which can support the shift lever in a vibration-proof manner and can improve the operation feeling thereof favorably. To do.

<Means for Solving the Problems> In order to achieve the above object, the present invention provides a vibration-proof vibration of a shift lever retainer in which a vibration-proof sheet is interposed between a shift lever retainer connected by a mounting bolt and a transmission case. In the structure, the upper portion of the bolt hole of the shift lever retainer, through which the mounting bolt is inserted, has an inner peripheral surface and an outer edge portion of the washer of the mounting bolt that are spaced in the moving direction of the shift lever retainer by the operation of the shift lever. It is characterized in that they are formed so as to face each other.

Further, in the vibration-proof structure of the shift lever retainer in which a vibration-proof sheet is interposed between the shift lever retainer and the transmission case, which are connected with the mounting bolts, the above-mentioned mounting bolts are constituted by stepped bolts, and the mounting bolts are The upper portion of the bolt hole of the shift lever retainer to be inserted is arranged such that the inner peripheral surface and the stepped head portion of the mounting bolt oppose each other with a gap in the moving direction of the shift lever retainer operated by the shift lever. It is characterized by being formed.

<Operation> With the configuration described above, the shift lever retainer is integrally fixed to the transmission case by the mounting bolts as in the conventional case, but the inner peripheral surface of the upper portion of the bolt hole of the shift lever retainer and the outer edge of the mounting bolt washer are But,
Since the shift lever retainer is configured to face each other with a gap in the moving direction of the shift lever retainer by the operation of the shift lever, the shift lever retainer is allowed to move by the gap between them.

If the mounting bolt is a stepped bolt and a gap is secured from the stepped head, the shift lever retainer can be moved while reducing the number of parts.

<< Embodiment >> An embodiment of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 is a side view showing a preferred embodiment of a vibration isolation structure for a shift lever retainer according to the present invention.

The shift lever retainer 1 spherically supports the shift lever 2 in a shiftable manner, and is fixed to the transmission case 5 by a plurality of mounting bolts 4 via a vibration-proof sheet 3.

FIG. 2 is a cross-sectional view illustrating the structure around the mounting bolt shown in FIG.

The shift lever retainer 1 is fixed to the transmission case 5 by inserting the mounting bolt 4 into the bolt hole 10 formed in the flange portion and tightening the mounting bolt 4. At this time, the inner diameter of the bolt hole 10 is formed to be larger than the outer diameter of the mounting bolt 4 so that the mounting bolt 4 does not come into direct contact with the bolt hole 10 portion. The seat 3 and the anti-vibration ring 6 made of the same material are interposed.

That is, the washer 7 and the cylindrical spacer 8 having a predetermined length are inserted into the mounting bolt 4, and the vibration isolation ring 6 is inserted therein. The outer edge portion 70 of the washer 7 is bent toward the tightening side, and the vibration isolation ring 6 has the outer edge portion 70.
It is fitted inside. In addition, the mounting bolts 4 of the anti-vibration sheet 3
A boss portion 30 is formed at the insertion portion, and this boss portion 30
Are fitted inside the aforementioned bolt holes 10. Further, on the upper portion of the bolt hole 10, the inner peripheral surface of the upper portion of the bolt hole 10 and the outer edge portion 70 of the washer 7 are arranged so as not to contact the outer edge portion 70 of the washer 7 when the mounting bolt 4 is tightened. Large-diameter holes 11 having a size facing each other are formed at intervals in the moving direction of the shift lever retainer 1 by an operation.

That is, according to such a configuration, the shift lever retainer 1 is integrally fixed to the transmission case 5 by the mounting bolts 4 as in the conventional case, but in the hole portion 11 formed above the bolt hole 10 of the shift lever retainer 1. Is the washer 7 inserted into the inner peripheral surface and the mounting bolt 4.
The outer edge portion 70 of the shift lever retainer 1 and the outer edge portion 70 of the shift lever 2 are configured to face each other with a gap in the moving direction of the shift lever retainer 1 when the shift lever 2 is operated. Is also easy and acceptable. Therefore, the rigidity at the spherical support point of the shift lever 2 can be made softer by the amount of the above-mentioned gap movement, and thus the shift lever 2 can be vibration-proof supported and the operation feeling can be improved. At this time, since the number of parts is the same as the conventional one, there is also an effect that such an improvement in operational feeling can be achieved without increasing the cost.

The washer 7 and the hole 11 are not limited to the gap in the moving direction of the shift lever retainer 1 by the operation of the shift lever 2, for example, the gap in the horizontal direction as shown in the drawing, but also the lower end portion 71 of the outer edge portion 70 of the washer. A space is also formed between the bottom surface portion 72 of the hole 11 and the bottom portion 72 of the hole 11. This allows a slight tilting of the retainer 1 to further improve the operational feeling.

Further, although the washer 7 and the spacer 8 are inserted into the mounting bolt 4 in the above-described embodiment, the present invention is not limited to this. For example, as shown in FIG.
Change to a stepped bolt 40 that does not require the washer 7 and the spacer 8, and the peripheral edge of the stepped head 41 of the stepped bolt 40 has a hole portion 11.
If the dimensions and the like are set so as to face each other with an interval in the moving direction of the shift lever retainer 1 by the operation of the shift lever 2 with respect to the inner peripheral surface of the shift lever, the shift lever will be displaced by the amount of the gap. The retainer 1 is allowed to move. Therefore, even if the stepped bolt 40 is changed, the shift lever 2 can be similarly vibration-isolated and supported, and the operation feeling can be improved. At this time, since the washer 7 and the spacer 8 are unnecessary, the assembling work becomes simpler, and considering the reduction of the number of parts, it is advantageous in workability and cost.

Even in the present embodiment, the stepped head portion 41 and the hole portion 11 have only a gap in the moving direction of the shift lever retainer 1 by the operation of the shift lever 2, for example, a gap in the horizontal direction as shown in the drawing. In addition, a space is formed between the lower end 42 of the stepped head 41 and the bottom surface 72 of the hole 11. This allows a slight tilt of the retainer 1 as in the above case and provides a feeling of operation. Be improved.

<Effects of Device> As described in detail in the above, according to the vibration isolating structure of the shift lever retainer of the present invention, the inner peripheral surface of the upper portion of the bolt hole of the shift lever retainer and the outer edge of the washer of the mounting bolt are And are configured to face each other with a gap in the moving direction of the shift lever retainer by the operation of the shift lever, so that the shift lever retainer is allowed to move by a gap corresponding to the gap therebetween. Become. For this reason, the rigidity at the spherical support point of the shift lever can be made slightly softer by the amount of the movement of the gap, and thus the operation feeling can be favorably improved while supporting the shift lever with vibration isolation.

Also, if the mounting bolt is a stepped bolt that does not require washers, etc., the number of parts can be reduced and the gap between the shift lever retainer and the inner surface of the upper part of the bolt hole can be set. It is advantageous in workability and cost.

[Brief description of drawings]

FIG. 1 is a side view showing an anti-vibration structure of a shift lever retainer according to the present invention, FIG. 2 is a sectional view for explaining the structure around a mounting bolt shown in FIG. 1, and FIG. 3 is another embodiment of the present invention. FIG. 3 is a sectional view similar to FIG. 1 …… Shift lever retainer 3 …… Vibration isolating sheet, 4,40 …… Mounting bolt 5 …… Transmission case 7 …… Washer, 10 …… Bolt hole 11 …… Hole part, 41 …… Stepped head 70… ... Outer edge of washer

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Yuzo Tanaka 3-3 Shinchi, Fuchu-cho, Aki-gun, Hiroshima Prefecture Mazda Co., Ltd. (56) Bibliographic references Sho 45-18805

Claims (2)

[Scope of utility model registration request] 1. A vibration-proof structure for a shift lever retainer, wherein a vibration-proof sheet is interposed between a shift lever retainer and a transmission case, which are connected by a mounting bolt.
An inner peripheral surface of a bolt hole upper portion of the shift lever retainer through which the mounting bolt is inserted and an outer edge portion of the washer of the mounting bolt are opposed to each other with a gap in a moving direction of the shift lever retainer operated by the shift lever. Anti-vibration structure for the shift lever retainer characterized by being formed as follows. 2. An anti-vibration structure for a shift lever retainer, wherein an anti-vibration sheet is interposed between a transmission lever case and a shift lever retainer that are connected by a mounting bolt.
The mounting bolt is a stepped bolt, and the inner peripheral surface of the upper portion of the bolt hole of the shift lever retainer into which the mounting bolt is inserted and the stepped head portion of the mounting bolt are operated by the shift lever. An anti-vibration structure for a shift lever retainer, wherein the shift lever retainer is formed so as to face each other at intervals in the moving direction of the retainer.