JP2861667B2 - Stopper for anti-vibration support device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a first structure having a double structure.
And a second member, and a first member disposed outside and used inside a vibration isolating support device including a support elastic body interposed between the first member and the second member. The present invention relates to a stopper for preventing contact between the first member and the bracket for the second member, in particular, it is possible to reliably prevent the contact between the first member and the bracket and to improve the workability during assembly. It is intended to improve the performance.

[0002]

2. Description of the Related Art A conventional technique of this kind is disclosed in, for example, Japanese Utility Model Laid-Open No. 64-4911 (first conventional example). That is, this conventional technique is an anti-vibration support comprising an outer cylinder, an inner cylinder disposed parallel to the inside of the outer cylinder, and a supporting elastic body interposed between the inner surface of the outer cylinder and the outer surface of the inner cylinder. Related to the device, for example, when used as a device that supports the engine of the vehicle to the vehicle body, the outer cylinder is fixed to one of the engine and the vehicle body via a bracket formed integrally therewith, the inner cylinder It is fixed to the other of the engine and the vehicle body via a bracket connected to its end.

In the vibration isolating support device having such a configuration, the inner cylinder has a double structure surrounded by the outer cylinder.
A part of the bracket for the inner cylinder must be arranged near the outer cylinder, and therefore, when the supporting elastic body is bent, the outer cylinder and
There is a possibility that the bracket collides with the like, causing unpleasant noise or damage to the bracket or the like. Therefore, in the first conventional example, a stopper made of rubber or the like formed in a plate shape is supported at the end of the inner cylinder, thereby preventing direct contact between the outer cylinder and the bracket.

FIGS. 10 and 11 show the structure of another conventional example (second conventional example). FIG. 10 is a front view of an anti-vibration support device 1, and FIG. 1 is a plan view, 2 is an outer cylinder, 3 is an inner cylinder, 4 is a support elastic body, 5 is a bracket for the outer cylinder, and 6 is a bracket for the inner cylinder. That is, in the second conventional example, in order to solve the same problem as the first conventional example, stoppers 8 and 8 made of rubber or the like formed in a plate shape are fixed inside the brackets 6 and 6,
Thus, direct contact between the outer cylinder 2 and the brackets 6, 6 is prevented.

[0005]

However, the above-mentioned prior art has the following unsolved problems. That is, in the first conventional example, when a large relative displacement occurs between the outer cylinder and the inner cylinder due to the deformation of the support elastic body, there is a possibility that the outer cylinder and the bracket may contact depending on the size of the stopper. Because of this, it is necessary to determine the shape and dimensions of the stopper in consideration of the maximum relative displacement between the outer cylinder and the inner cylinder, and the stopper becomes large and bulky. On the other hand, since two stoppers are required, the number of man-hours at the time of assembly is also required accordingly.

In the first conventional example, the stopper is supported at the end of the inner cylinder, and the stopper is easily separated from the inner cylinder until it is mounted on the bracket.
There is also a problem that the stopper may drop off or be turned up during transportation or when attached to the vehicle body. On the other hand, even in the second conventional example, it is necessary to determine the shapes and dimensions of the stoppers 8, 8 in consideration of the maximum relative displacement between the outer cylinder 2 and the inner cylinder 3.

In the second conventional example, the stoppers 8, 8 are fixed inside the brackets 6, 6, so that the fastening operation of the nuts and the like is performed in the case of FIGS. Four locations are required for the vibration support device 1, and there is also a problem that workability is poor. The present invention has been made in view of such unresolved problems of the conventional technology, and can reliably prevent the contact between the outer cylinder and the bracket without using a large stopper,
Another object of the present invention is to provide a stopper for an anti-vibration support device that can easily improve workability during assembly.

[0008]

In order to achieve the above object, the present invention relates to a first member which has a cylindrical shape and is fixed to one of a supporting member and a supported member via a first bracket. A second member disposed inside the first member and fixed to the other of the support member and the supported member via a second bracket; and a second member between the first member and the second member. a resilient support member intervening, used in vibration-damping support device provided with, a stopper for preventing contact between said first member and the second bracket to the stopper, one before
The anti-vibration support device is provided as one, and the first
Was fixed to the outer periphery of the member.

[0009]

In the present invention, since the stopper is fixed to the outer peripheral portion of the first member, the stopper is displaced integrally with the first member, so that the first member and the second member are displaced. Even when a large relative displacement occurs between the stopper and the member, the stopper does not move to a position where the contact between the first member and the second bracket cannot be prevented.

[0010] In addition, because as one of the stopper for one of the vibration isolation support system, and man-hours also reduced at the time of assembly
I'm done.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. FIGS. 1, 2 and 3 show a first embodiment of the present invention. FIG. 1 is a front view of an anti-vibration support device 1, FIG. 2 is a plan view of the anti-vibration support device 1, and FIG. It is a perspective view of 10.

First, the structure will be described. The anti-vibration support device 1 also has an outer cylinder 2 as a first member, similarly to the conventional one.
The inner cylinder 3 as a second member is disposed in parallel inside the inner cylinder, and a supporting elastic body 4 is interposed between the inner peripheral surface of the outer cylinder 2 and the outer peripheral surface of the inner cylinder 3 by vulcanization bonding or the like. For example, when the outer cylinder 2 is used as a device for supporting an engine of a vehicle on a vehicle body, the outer cylinder 2 is connected to one of the vehicle body as a support and the engine as a supported member via a bracket 5 as a first bracket. And the inner cylinder 3 is fixed to the other of the vehicle body and the engine via brackets 6 and 6 as second brackets.

Therefore, for example, if the bracket 5 is fixed to the engine side and the brackets 6 and 6 are fixed to the vehicle body side, the engine is mounted on the bracket 5, the outer cylinder 2, the supporting elastic body 4, the inner cylinder 3, and the brackets 6, 6. , It is elastically supported by the vehicle body. In this embodiment, in order to prevent direct contact between the outer cylinder 2 and the brackets 6, 6, an elastic material such as rubber is attached to the outer peripheral surface of the outer cylinder 2 located at a portion sandwiched between the brackets 6, 6. A stopper 10 made of a body is fixed.

The stopper 10 is continuous with a central portion 10a made of a flat plate slightly curved so as to cover the outer peripheral surface of the outer cylinder 2 and a side portion of the curved plate portion 10a so as to cover both end surfaces of the outer cylinder 2. And the side plate portion 10b is formed integrally therewith so as to follow the outer peripheral surface of the outer cylinder 2 located at the portion sandwiched between the brackets 6 and 6, and arranged so that the end portions face each other. Pair of clip portions 11, 11
The outer cylinder 2 by sandwiching both ends of the central portion 10a.
Is fixed to the outer peripheral surface of.

Next, the operation and effect of this embodiment will be described. That is, in the present embodiment, the contact between the outer cylinder 2 and the brackets 6, 6 is prevented by the side plates 10b, 10b of the stopper 10, but the stopper 10 is fixed to the outer peripheral surface of the outer cylinder 2. For example, even if a large relative displacement occurs between the outer cylinder 2 and the inner cylinder 3, the stopper 10 is displaced integrally with the outer cylinder 2, so that contact between the outer cylinder 2 and the brackets 6, 6 cannot be prevented. The stopper 10 does not move to such a position. Therefore, the contact between the outer cylinder 2 and the brackets 6, 6 can be reliably prevented without using the large and bulky stopper 10.

In addition, according to the configuration of the present embodiment, the contact between the two portions between the both ends of the outer cylinder 2 and the brackets 6 and 6 can be prevented by one stopper 10 and one vibration isolation Since only one stopper 10 is required for the support device 1, and the stopper 10 is fixed to the outer cylinder 2 only by sandwiching the central portion 10a between the clip portions 11, the number of parts is reduced, and the cost is reduced. The number of man-hours for assembling is also simplified, and work efficiency is improved.

Further, since the stopper 10 is sandwiched by the clip portion 11 and fixed to the outer cylinder 2, the stopper 10 does not fall off during transportation or assembly. 4, 5 and 6 are views showing a second embodiment of the present invention. FIG. 4 is a front view of the anti-vibration support device 1.
Is a plan view of the anti-vibration support device 1, and FIG. 6 is a perspective view of the stopper 10. The same components as those in the first embodiment are denoted by the same reference numerals, and the description thereof will not be repeated.

That is, in this embodiment, a rectangular through hole 10c is formed in the central portion 10a of the stopper 10 and the outer peripheral surface of the outer cylinder 2 located at a portion sandwiched between the brackets 6 and 6 is formed along the outer peripheral surface. And a pair of clip portions 12, 12 whose ends face in opposite directions to each other. The stopper 10 is sandwiched between the clip portions 12, 12 from the side of the through hole 10 c, so that the stopper 10 is connected to the outer cylinder 2. Is fixed to the outer peripheral surface of.

With such a configuration, when the stopper 10 is fixed to the outer cylinder 2, the stopper 10 is deformed in the pulling direction. There is an advantage that the fixing operation is easier than in the first embodiment which needs to be deformed. Other functions and effects are the same as those of the first embodiment.

FIGS. 7, 8, and 9 are views showing a second embodiment of the present invention. FIG. 7 is a front view of the vibration isolating support device 1, and FIG.
Is a plan view of the anti-vibration support device 1, and FIG. 9 is a perspective view of the stopper 10. The same components as those in the first embodiment are denoted by the same reference numerals, and the description thereof will not be repeated. That is, in this embodiment, a plurality of (four in this embodiment) circular through holes 10d,..., 10d are formed in the central portion 10a of the stopper 10, and the number and position of the through holes 10d,. In correspondence with the above, a plurality of mushroom-shaped projections 13,..., 13 are formed on the outer peripheral surface of the outer cylinder 2 located at the portion sandwiched between the brackets 6, 6, and the through holes 10d,.
The stopper 10 is fixed to the outer peripheral surface of the outer cylinder 2 by fitting the projections 13,...

With such a configuration, when the stopper 10 is fixed to the outer cylinder 2, it is only necessary to press the stopper 10 against the outer peripheral surface of the outer cylinder 2. There is an advantage that the fixing operation becomes extremely easy as compared with the second embodiment. Other functions and effects are the same as those of the first embodiment. In the third embodiment, the case where four through-holes 10d and four protrusions 13 are provided is described. However, the number thereof is arbitrary.
In the configuration shown in FIG. 9, the configuration may be such that the two through-holes 10d provided on one diagonal line and the projections 13 corresponding thereto are omitted.

Further, in the first embodiment, the case where the present invention is applied to the anti-vibration support device 1 for supporting the engine of the vehicle on the vehicle body has been described. However, the anti-vibration support device to which the present invention can be applied is applied to this. It is not limited.

[0023]

As described above, according to the present invention,
Since one stopper is fixed to the outer peripheral portion of the first member that forms the outer cylinder portion of the double structure, the first member and the second bracket can be used without using a large and bulky stopper. it is possible to reliably prevent the contact with, because it is one of the stopper on one of the anti-vibration supporting device, to cost reduction can be achieved parts becomes small, working steps in assembling also simplified work There is an effect that efficiency can be improved.

[Brief description of the drawings]

FIG. 1 is a front view of an anti-vibration support device according to a first embodiment.

FIG. 2 is a plan view of an anti-vibration support device according to the first embodiment.

FIG. 3 is a perspective view of a stopper according to the first embodiment.

FIG. 4 is a front view of an anti-vibration support device according to a second embodiment.

FIG. 5 is a plan view of an anti-vibration support device according to a second embodiment.

FIG. 6 is a perspective view of a stopper according to the second embodiment.

FIG. 7 is a front view of an anti-vibration support device according to a third embodiment.

FIG. 8 is a plan view of an anti-vibration support device according to a third embodiment.

FIG. 9 is a perspective view of a stopper according to the third embodiment.

FIG. 10 is a front view of an anti-vibration support device according to a second conventional example.

FIG. 11 is a plan view of an anti-vibration support device according to a second conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Vibration-proof support device 2 Outer cylinder (1st member) 3 Inner cylinder (2nd member) 4 Support elastic body 5 Bracket (1st bracket) 6 Bracket (2nd bracket) 10 Stopper 10a Central part 10b Side plate Part 10c Through hole 10d Through hole 11 Clip part 12 Clip part 13 Projection

Claims (1)

(57) [Claims] 1. A first member which has a cylindrical shape and is fixed to one of a supporting member and a supported member via a first bracket, and a second member provided inside the first member and provided with a second member. An anti-vibration support device including: a second member fixed to the other of the support member and the supported member via a bracket; and a support elastic member interposed between the first member and the second member. used is, a stopper for preventing contact between said first member and said second bracket, the stopper, one before
The anti-vibration support device is provided as one, and the first
A stopper for an anti-vibration support device, wherein the stopper is fixed to an outer peripheral portion of the member.