JPH0594545U - Anti-vibration mount - Google Patents

Abstract

(57) [Abstract] [Purpose] Regarding the annular vibration-damping mount 1 mounted on the inner peripheral edge portion 23 of the mounting hole 22 formed in the bracket 21, the bracket 21 and the vibration-damping mount 1 are prevented from rattling in the radial direction. To prevent. [Structure] An inner peripheral edge portion 23 of a mounting hole 22 provided in a bracket 21 and a rigid member 2 on an outer peripheral side are fixed by rivets 6, pins or welding.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an improvement of an anti-vibration mount.

[0002]

[Prior Art]

 The propeller shaft of an automobile drive system is rotatably and elastically supported by a center bearing support 11 as shown in FIG. 4, and this center bearing support 11 is provided with a bracket 21 and a plurality of anti-vibration mounts 1. Is attached to the vehicle body. As shown in an enlarged view in FIG. 5, the vibration-proof mount 1 is formed in an annular shape so that it can be attached to the inner peripheral edge portion 23 of the attachment hole 22 provided in the bracket 21, that is, it has an annular shape. An annular engaging groove 3 that engages with the inner peripheral edge portion 23 is provided on the outer peripheral surface, and the rigid member 2 on the outer peripheral side is divided into two upper and lower divided bodies 2a and 2b so as to sandwich the inner peripheral edge portion 23. An annular elastic member 4 made of a rubber-like elastic material connected to the inner peripheral side of the rigid member 2 on the outer peripheral side, and an annular inner peripheral rigid member 5 connected to the inner peripheral side of the elastic member 4, have. The elastic body 4 and the inner rigid member 5 are also divided into two upper and lower divided bodies.

[0003]

[Problems to be solved by the device]

 The above conventional technique has the following problems. That is, as shown in FIG. 5, a radial gap may be formed between the inner peripheral surface of the inner peripheral edge portion 23 of the mounting hole 22 and the bottom wall of the engagement groove 3 due to dimensional tolerance. When such a gap is created, the bracket 21 and the vibration-proof mount 1 rattle in the radial direction. This rattling means that the center of the circular mounting hole 22 and the center of the annular vibration-proof mount 1 are displaced.

[0004]

[Means for Solving the Problems]

 In view of the above points, the present invention has been devised in order to solve the problems found in the above-mentioned prior art, and in order to achieve this object, it is provided in a bracket as described in claim 1. An annular vibration proof mount to be mounted on the inner peripheral edge of the mounting hole, which is annular and has an annular engagement groove on its outer peripheral surface that engages with the inner peripheral edge so as to sandwich the inner peripheral edge. A rigid member on the outer peripheral side divided into two divided bodies, an elastic body made of a rubber-like elastic material connected to the inner peripheral side of the rigid member on the outer peripheral side, and connected to the inner peripheral side of the elastic body. An anti-vibration mount comprising a rigid member on the inner peripheral side and a rigid member on the outer peripheral side, wherein the rigid member on the outer peripheral side is fixed by rivets.

Further, according to a second aspect of the present invention, there is provided an annular vibration-damping mount mounted on an inner peripheral edge portion of a mounting hole provided on a bracket, which has an annular shape, and an outer peripheral surface of which is engaged with the inner peripheral edge portion. A rigid member on the outer peripheral side, which is divided into two divided bodies so as to sandwich the inner peripheral edge portion, and a rubber-like elastic material connected to the inner peripheral side of the rigid member on the outer peripheral side. In an anti-vibration mount, the inner peripheral edge portion and the outer peripheral side rigid member are fixed by a pin in an anti-vibration mount comprising an elastic body and an inner peripheral side rigid member connected to the inner peripheral side of the elastic body. We provide a vibration-proof mount.

According to a third aspect of the present invention, there is provided an annular vibration-damping mount mounted on an inner peripheral edge portion of a mounting hole formed in a bracket, which is annular and has an outer peripheral surface engaged with the inner peripheral edge portion. A rigid member on the outer peripheral side, which is divided into two divided bodies so as to sandwich the inner peripheral edge portion, and a rubber-like elastic material connected to the inner peripheral side of the rigid member on the outer peripheral side. In an anti-vibration mount, the inner peripheral edge portion and the outer peripheral side rigid member are fixed by welding in an anti-vibration mount comprising an elastic body and an inner peripheral rigid member connected to the inner peripheral side of the elastic body. We provide a vibration-proof mount.

[0007]

[Action]

 In the vibration proof mount according to claim 1, if the inner peripheral edge of the mounting hole provided in the bracket and the rigid member on the outer circumference side are fixed by rivets, it is possible to suppress radial rattling of the bracket and the vibration proof mount. is there. The anti-vibration mount according to claim 2 is the one in which the rivet in claim 1 is replaced by a pin, and the anti-vibration mount according to claim 3 is the one in which the rivet in claim 1 is replaced by welding. The same action as that of the vibration proof mount is achieved.

[0008]

【Example】

 Next, an embodiment of the present invention will be described with reference to the drawings. In the vibration-proof mount 1 shown in FIG. 1, an inner peripheral edge portion 23 of a mounting hole 22 provided in a bracket 21 and a rigid member 2 on the outer peripheral side are required. It is fixed by crimping with several rivets 6. In the vibration proof mount 1 shown in FIG. 2, the inner peripheral edge portion 23 and the outer peripheral side rigid member 2 are fixed by a required number of pins 7 driven into the outer peripheral side rigid member 2. Further, in the vibration-proof mount 1 shown in FIG. 3, the inner peripheral edge portion 23 and the rigid member 2 on the outer peripheral side are fixed by welding 8 such as spot welding or projection welding. The other configurations of any of the embodiments are the same as those of the conventional example shown in FIG. However, according to these structures, even if there is a radial gap between the inner peripheral surface of the inner peripheral edge portion 23 and the bottom wall of the engagement groove 3, the bracket 21 and the vibration isolation mount 1 rattle in the radial direction. Can be effectively prevented, and the occurrence of noise due to this rattling can be prevented.

[0009]

[Effect of the device]

 The present invention has the following effects. That is, since the inner peripheral edge of the mounting hole provided in the bracket and the rigid member on the outer peripheral side are fixed by rivets, pins, or welding in common to the vibration damping mounts according to claims 1 to 3, the inner peripheral edge is formed. Even if there is a radial gap between the inner peripheral surface of the bracket and the bottom wall of the engaging groove, it is possible to effectively prevent the bracket and the vibration isolation mount from rattling in the radial direction. It is possible to prevent the occurrence of.

[Brief description of drawings]

FIG. 1 is a half sectional view of an anti-vibration mount according to a first embodiment of the present invention.

FIG. 2 is a half cutaway view of an anti-vibration mount according to a second embodiment of the present invention.

FIG. 3 is a half cutaway view of an anti-vibration mount according to a third embodiment of the present invention.

FIG. 4 is an explanatory diagram showing a usage state of a vibration proof mount.

FIG. 5 is a sectional view of an anti-vibration mount according to a conventional example.

[Explanation of symbols]

 1 Anti-Vibration Mount 2 Rigid Member 2a, 2b on Outer Side 3 Divided Body 3 Engagement Groove 4 Elastic Body 5 Rigid Member on Inner Circumferential Side 6 Rivet 7 Pin 8 Welding 11 Center Bearing Support 21 Bracket 22 Mounting Hole 23 Inner Perimeter

Claims (3)

[Scope of utility model registration request] 1. An anti-vibration mount 1 having an annular shape, which is mounted on an inner peripheral edge portion 23 of a mounting hole 22 formed in a bracket 21, and has an annular shape, and an outer peripheral surface of which is engaged with the inner peripheral edge portion 23. Of the outer peripheral side rigid member 2 which is divided into two divided bodies 2a and 2b so as to sandwich the inner peripheral edge portion 23, and is connected to the inner peripheral side of the outer peripheral side rigid member 2. In an antivibration mount including an elastic body 4 made of a rubber-like elastic material and an inner peripheral side rigid member 5 connected to the inner peripheral side of the elastic body 4, the inner peripheral edge portion 23 and the outer peripheral side rigidity An anti-vibration mount, characterized in that the member 2 is fixed by rivets 6. 2. An anti-vibration mount 1 which is mounted on an inner peripheral edge portion 23 of a mounting hole 22 formed in a bracket 21 and which has an annular shape and whose outer peripheral surface engages with the inner peripheral edge portion 23. Of the outer peripheral side rigid member 2 which is divided into two divided bodies 2a and 2b so as to sandwich the inner peripheral edge portion 23, and is connected to the inner peripheral side of the outer peripheral side rigid member 2. In an antivibration mount including an elastic body 4 made of a rubber-like elastic material and an inner peripheral side rigid member 5 connected to the inner peripheral side of the elastic body 4, the inner peripheral edge portion 23 and the outer peripheral side rigidity An anti-vibration mount, characterized in that the member 2 is fixed by pins 7. 3. An annular vibration-damping mount 1 to be mounted on an inner peripheral edge portion 23 of a mounting hole 22 provided on a bracket 21, the ring-shaped vibration mount 1 having an annular shape, the outer peripheral surface of which is engaged with the inner peripheral edge portion 23. Of the outer peripheral side rigid member 2 which is divided into two divided bodies 2a and 2b so as to sandwich the inner peripheral edge portion 23, and is connected to the inner peripheral side of the outer peripheral side rigid member 2. In an antivibration mount including an elastic body 4 made of a rubber-like elastic material and an inner peripheral side rigid member 5 connected to the inner peripheral side of the elastic body 4, the inner peripheral edge portion 23 and the outer peripheral side rigidity An anti-vibration mount, characterized in that the member 2 is fixed by welding 8.