JP2015040612A - Vibration isolation device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve strength of a stopper receiving plate part.SOLUTION: A support plate part 31 extending to a side opposite to a front side frame F is integrally formed on a mounting plate part 30, so that its upper face is on the same plane with an upper face of the mounting plate part 30. An outer cylindrical body 11 is supported on the upper face of the support plate part 31. Stopper receiving plate parts 32 for receiving a stopper 34 across the plate parts 30, 31 are bend to extend on a side opposite to an inner cylindrical body 10 at both ends in a cylinder axial direction of the mounting plate part 30 and the support plate part 31.

Description

  The present invention provides a main body having an inner cylinder attached to the vibration source side, a cylindrical portion, and a rubber elastic body provided between the two, and extends horizontally from the main body side to the vibration receiving side. A mounting plate portion attached to the vibration receiving side and at least a part of at least one end side of the main body portion in the cylinder axis direction so as to be located outside the end surface of the cylindrical portion in the cylinder axis direction. The present invention relates to an anti-vibration device provided with a stopper provided in the above.

  For example, a vibration isolator applied to an engine mount of an automobile is known as a conventional technique.

  The vibration isolator shown in Patent Document 1 has an outer cylinder member having an oval cross-sectional shape, and a vibration isolating rubber body formed in a substantially bowl shape is constructed between opposing inner circumferential surfaces in the major axis direction. A rubber member extending in the axial direction along the inner peripheral surface of the outer cylinder member is disposed between both leg portions to form a stopper member. A flange projecting in the radial direction is provided at one end of the outer cylinder member, and one end of the stopper member is extended to cover the surface of the flange to form the first side stopper portion, while the other end of the stopper member is A second side stopper is formed by protruding from the cylindrical member. With the above configuration, it is possible to reduce the number of parts while securing the effect as a side stopper, and it is easy to manage and assemble parts and to reduce the size.

JP 2000-266122 A

  The vibration isolator shown in FIG. 6 includes a main body 101 and a mounting plate 130. The main body 101 is provided so that the cylinder axis direction is in the horizontal direction, an inner cylinder (not shown) attached to a vibration source side such as a power plant, and an outer cylinder provided around the inner cylinder It has a body 111 and a rubber elastic body (not shown) provided between the two cylinders and connecting the two cylinders to each other. The mounting plate portion 130 is provided so as to extend in the horizontal direction from the main body portion 101 side to the vibration receiving side of the vehicle body or the like, and is attached to the vibration receiving side. The height of the mounting plate 130 is higher than the bottom of the outer cylinder 111. In addition, a support plate portion 131 that extends to the opposite side of the vibration receiving side is integrally formed on the mounting plate portion 130 so as to follow the outer periphery of the outer cylindrical body 111. The outer cylinder 111 is supported on the upper surface of the support plate 131. In addition, a stopper receiving plate portion 132 that receives a stopper (not shown) that restricts relative movement of both cylinders in the cylinder axis direction is bent at the end portion of the support plate portion 131 in the cylinder axis direction so as to extend downward. Is formed.

  Here, in terms of strength, the stopper receiving plate portion 132 is preferably formed so as to straddle the support plate portion 131 and the mounting plate portion 130, but the mounting plate portion 130 has a height position as described above. Is higher than the bottom of the outer cylindrical body 111, so that bending occurs between the support plate portion 131 and the mounting plate portion 130. Therefore, the stopper receiving plate portion 132 is attached to the support plate portion 131 and the mounting plate portion 130. It cannot be formed across.

  This invention is made | formed in view of this point, and the place made into the subject exists in improving the intensity | strength of a stopper receiving plate part.

  In order to solve the above-described problems, the present invention is characterized in that the bottom surface of the cylindrical portion and the top surface of the mounting plate portion attached to the vibration receiving side are on substantially the same plane.

  Specifically, the present invention provides an inner cylinder that is provided on the vibration source side so that the cylinder axis direction is oriented in the horizontal direction, a cylindrical portion that is provided around the inner cylinder, A main body having a rubber elastic body provided between the cylindrical body and the cylindrical portion, and an attachment provided to extend in the horizontal direction from the main body to the vibration receiving side and attached to the vibration receiving side A plate portion, and at least one end side of the main body portion in the cylinder axis direction is provided so that at least a part thereof is positioned on the outer side in the cylinder axis direction from the end surface of the cylindrical portion in the cylinder axis direction; The following solution was taken for a vibration isolator provided with a stopper for restricting relative movement of the cylindrical portion in the cylinder axis direction.

  That is, according to the first aspect of the present invention, the mounting plate portion is integrally formed with a support plate portion extending on the opposite side to the vibration receiving side so that the upper surface thereof is flush with the upper surface of the mounting plate portion. The cylindrical portion is supported on the upper surface of the support plate portion, and at least one end portion of the mounting plate portion and the support plate portion in the cylinder axis direction straddles both of the stoppers. The stopper receiving plate portion for receiving is formed to be bent so as to extend on the side opposite to the inner cylindrical body.

  According to this, since the support plate portion extending on the opposite side to the vibration receiving side is integrally formed on the attachment plate portion so that the upper surface thereof is on the same plane as the upper surface of the attachment plate portion, the attachment plate portion and The stopper receiving plate portion can be bent and formed so as to extend to the opposite side of the inner cylindrical body across at least one end portion of the support plate portion in the cylinder axis direction. For this reason, the strength of the stopper receiving plate portion can be improved.

  According to a second aspect of the present invention, in the first aspect of the invention, the mounting plate portion has both ends in the tube axis direction protruding outward in the tube axis direction from both ends of the support plate portion in the tube axis direction. The stopper receiving plate portion is formed at an end portion of the mounting plate portion opposite to the vibration receiving side and an end portion of the support plate portion in the cylinder axis direction.

  By the way, when both ends of the mounting plate portion in the cylindrical axis direction are protruded outward in the cylindrical axis direction from both ends of the supporting plate portion in the cylindrical axis direction, when the load in the cylindrical axis direction is input, the mounting plate portion The stress is most concentrated in the vicinity of the boundary between the end on the opposite side to the vibration receiving side and the end of the support plate in the cylinder axis direction.

  Here, according to the present invention, the stopper receiving plate portion is formed across the end portion of the mounting plate portion on the opposite side to the vibration receiving side and the end portion of the support plate portion in the cylinder axis direction. Therefore, the strength of the portion near the boundary between the end of the stopper receiving plate portion opposite to the vibration receiving side of the mounting plate portion and the end of the support plate portion in the cylinder axis direction can be improved. For this reason, a stopper receiving plate part can be protected from stress concentration.

  In a third aspect of the invention, the cylindrical part is formed in a plate shape and is divided into two or more in the circumferential direction, and has a divided plate part including a bottom part of the cylindrical part, The divided plate portion is formed integrally with the mounting plate portion so that the upper surface of the bottom portion of the cylindrical portion is flush with the upper surface of the mounting plate portion. The mounting plate portion and the divided plate portion A stopper receiving plate portion that receives the stopper straddling both ends is bent at least at one end portion in the cylinder axis direction so as to extend to the side opposite to the inner cylindrical body. It is.

  According to this, since the dividing plate part including the bottom part of the cylindrical part is integrally formed on the mounting plate part so that the upper surface of the bottom part of the cylindrical part is on the same plane as the upper surface of the mounting plate part, The stopper receiving plate portion can be formed to be bent over at least one end portion of the mounting plate portion and the dividing plate portion in the cylinder axis direction so as to extend to the opposite side of the inner cylindrical body. For this reason, the strength of the stopper receiving plate portion can be improved.

  According to a fourth aspect of the present invention, in the third aspect of the present invention, the mounting plate portion has both ends in the tube axis direction projecting outward in the tube axis direction from both ends in the tube axis direction of the divided plate portion. The stopper receiving plate portion is formed at an end portion of the mounting plate portion opposite to the vibration receiving side and an end portion of the dividing plate portion in the cylinder axis direction.

  By the way, when both ends in the tube axis direction of the mounting plate portion are protruded outward in the tube axis direction from both ends in the tube axis direction of the divided plate portion, the mounting plate portion is input when a load in the tube axis direction is input. The stress is most concentrated in the vicinity of the boundary between the end opposite to the vibration receiving side and the end of the divided plate portion in the cylinder axis direction.

  Here, according to the present invention, the stopper receiving plate portion is formed across the end portion of the mounting plate portion on the opposite side to the vibration receiving side and the end portion of the dividing plate portion in the cylinder axis direction. Therefore, the strength of the portion near the boundary between the end of the stopper receiving plate portion on the side opposite to the vibration receiving side in the mounting plate portion and the end of the divided plate portion in the cylinder axis direction can be improved. For this reason, a stopper receiving plate part can be protected from stress concentration.

  According to the present invention, the stopper receiving plate portion that receives the stopper across at least one end portion in the cylinder axis direction of the mounting plate portion and the support plate portion or the divided plate portion extends to the opposite side to the inner cylindrical body. Therefore, the strength of the stopper receiving plate can be improved.

It is the front view which looked at the vibration isolator which concerns on Embodiment 1 of this invention from the vehicle front side. It is the perspective view which looked at the vibration isolator which concerns on Embodiment 1 from the vehicle diagonal front side. It is the perspective view which looked at the vibration isolator which concerns on Embodiment 1 from the vehicle diagonally rear side. It is the front view which looked at the vibration isolator which concerns on Embodiment 2 from the vehicle front side. It is the perspective view which looked at the vibration isolator which concerns on Embodiment 2 from the vehicle diagonal front side. It is a perspective view which shows the conventional vibration isolator.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. The following description of the preferred embodiments is merely exemplary in nature and is not intended to limit the invention, its application, or its use.

(Embodiment 1)
In this embodiment, the vibration isolator according to the present invention is applied to an engine mount A of an automobile, and the engine mount A is interposed between an automobile power plant and a vehicle body (not shown) to load the power plant. In addition to supporting, the vibration from the power plant is absorbed or attenuated to suppress the transmission of vibration to the vehicle body.

  That is, as shown in FIGS. 1 to 3, the main body (main body portion; hereinafter referred to as the “mount main body”) 1 of the engine mount A includes a hollow cylindrical metal inner cylinder 10 and an outer side of the inner cylinder 10. A hollow cylindrical metal outer cylinder 11 (cylindrical portion) provided around, and a rubber elastic body 12 provided between the cylinders 10 and 11 and connecting the cylinders 10 and 11 to each other Is provided. The mount body 1 is connected and attached to a fender (not shown) by a metal upper bracket 2 that is integrally attached to the outer periphery of the mount body so as to extend outward in the vehicle width direction. The mount body 1 is connected and attached to a front side frame F on the vibration receiving side that extends in the vehicle front-rear direction by a metal lower bracket 3 that is integrally attached to the lower outer periphery thereof so as to extend outward in the vehicle width direction. Is done. On the other hand, the inner cylinder 10 is connected and attached to a power plant (not shown) on the vibration source side by brackets (not shown) in which both ends in the cylinder axis direction are coupled by bolts or the like. ing.

  1 to 3 show a state where the static load of the power plant is not acting. In this state, the central axis of the inner cylindrical body 10 is offset upward from the central axis of the outer cylindrical body 11. However, in the 1G state where the static load of the power plant is applied as described above, the rubber elastic body 12 is bent and the inner cylindrical body 10 is displaced downward, and the central axis thereof is the outer cylindrical body 11. (The same applies to the second embodiment described later).

  The engine mount A, for example, suspends the transmission-side end of a power plant mounted horizontally in the engine room, and is arranged so that the axis of the inner cylinder 10 is generally directed in the vehicle longitudinal direction (horizontal direction). Has been.

  The inner cylinder 10 is formed in a cylindrical shape whose outer shape is generally polygonal when viewed from the cylinder axis direction. The inner cylinder 10 is formed so that its length in the cylinder axis direction is longer than that of the outer cylinder 11. The inner cylinder body 10 is disposed such that both ends in the cylinder axis direction protrude outward from the both ends of the outer cylinder body 11 in the cylinder axis direction.

  The outer cylinder 11 is made of sheet metal. The outer cylindrical body 11 is formed in a cylindrical shape in which the upper part 11a and the bottom part 11b have a flat plate shape and both side parts 11c and 11c have a curved plate shape as viewed from the cylinder axis direction. A battery tray (not shown) is attached to the upper portion 11a, and a dead weight 13 is attached to the inner side portion 11c in the vehicle width direction. And as for the outer cylinder 11, the both ends of the circumferential direction are mutually joined in the bottom part 11b.

  The rubber elastic body 12 is integrally vulcanized and molded on both cylinders 10 and 11. The rubber elastic body 12 extends from the inner cylinder 10 to both sides in the vehicle width direction (horizontal direction), and main spring portions 12a and 12a that elastically support the inner cylinder 10 with respect to the outer cylinder 11, and the inner cylinder. 10 has a protruding portion 12b protruding upward from the upper outer peripheral surface and a stopper portion 12c protruding upward from the lower inner peripheral surface of the outer cylindrical body 11. When the load in the vertical direction is input, the protrusion 12b comes into contact with the outer cylinder 11 or the stopper 12c comes into contact with the inner cylinder 10 so that the vertical directions of both the cylinders 10 and 11 are increased. Relative movement is restricted.

  The lower bracket 3 is made of sheet metal. The lower bracket 3 has a mounting plate portion 30 and a support plate portion 31 formed integrally with the mounting plate portion 30. The mounting plate 30 is provided so as to extend in the horizontal direction from the lower side of the mount body 1 to the outer side in the vehicle width direction (front side frame F side). The mounting plate portion 30 is formed in a substantially rectangular shape when viewed from the vertical direction. The mounting plate portion 30 is formed so that its length in the cylinder axis direction is longer than that of the outer cylinder body 11. The mounting plate portion 30 is disposed such that both ends in the cylinder axis direction protrude outward in the cylinder axis direction from both ends in the cylinder axis direction of the outer cylinder 11. A protruding portion 30 a that protrudes upward is formed at the central portion of the mounting plate portion 30 in the cylinder axis direction. The protrusion 30a is formed in a substantially U shape when viewed from the vehicle width direction. The protrusion 30a is formed such that the upper surface of the inner portion in the vehicle width direction is along the outer periphery of the outer side portion 11c of the outer cylinder 11 in the vehicle width direction. The mounting plate portion 30 has bolt insertion holes (not shown) penetratingly formed at both ends thereof in the cylinder axis direction. The mounting plate 30 has nuts 30b formed on the upper surface of the peripheral edge of each bolt insertion hole. The mounting plate portion 30 is fastened to the front side frame F by bolts (fastening members) inserted through the bolt insertion holes and the nuts 30b.

  The support plate portion 31 extends from the inner end portion in the vehicle width direction of the mounting plate portion 30 to the inner side in the vehicle width direction (the side opposite to the front side frame F side). The support plate portion 31 is formed so that the length in the cylinder axis direction is substantially the same as that of the outer cylinder body 11. The support plate portion 31 is arranged such that both ends in the cylinder axis direction are substantially at the same positions as both ends of the outer cylinder 11 in the cylinder axis direction. The upper surface of the support plate portion 31 is formed so as to follow the outer periphery of the bottom portion 11b of the outer cylindrical body 11 and the side portion 11c on the inner side in the vehicle width direction. The support plate part 31 extends to the center part in the vertical direction of the side part 11c on the inner side in the vehicle width direction of the outer cylinder 11. And the upper surface of the part (part other than the part corresponding to the side part 11c inside the vehicle width direction) of the support plate part 31 corresponding to the bottom part 11b of the outer cylinder body 11 is the both ends of the cylinder axis direction in the mounting plate part 30. It is on the same plane as the top surface of the part. The outer cylindrical body 11 has a bottom portion 11 b fixedly supported on the upper surface of the corresponding support plate portion 31.

  At both ends of the mounting plate portion 30 and the support plate portion 31 in the cylinder axis direction, a stopper receiving plate portion 32 that receives a stopper 34 that will be described later straddling both 30, 31 is provided on the lower side (opposite to the inner cylindrical body 10). Each side is bent so as to extend. This stopper receiving plate portion 32 is inward in the vehicle width direction (opposite to the front side frame F side) at each end portion (each portion outside the projecting portion 30a in the cylinder axis direction) of the mounting plate portion 30. Side) and the entire end of the support plate 31 in the cylinder axis direction. That is, the stopper receiving plate portion 32 is formed in an approximately L shape when viewed from the up and down direction. A reinforcing member 33 is provided between the two stopper receiving plate portions 32, 32 between the end portions on the support plate portion 31 side in the vehicle width direction so as to extend in the cylinder axis direction. The reinforcing member 33 suppresses deformation of the stopper receiving plate portion 32 when a load in the vehicle longitudinal direction (cylinder axis direction) is input.

  A rubber stopper 34 is provided below the main spring portion 12a on the outer side in the cylinder axis direction in the portion on the support plate portion 31 side of each stopper receiving plate portion 32 and on the inner side in the vehicle width direction. It has been. The stopper 34 is integrally vulcanized and formed on each stopper receiving plate portion 32. Further, the stopper 34 is integrally formed at each end portion in the cylinder axis direction of the stopper portion 12 c of the rubber elastic body 12. The stopper 34 as a whole is located on the outer side in the cylinder axis direction from the end surfaces in the cylinder axis direction of the outer cylinder 11. When the load in the vehicle front-rear direction is input, the stopper 34 comes into contact with the bracket on the power plant side, so that the relative movement in the vehicle front-rear direction of both the cylinders 10, 11 is restricted.

-Effect-
As described above, according to the present embodiment, the mounting plate 30 is integrated with the support plate 31 that extends on the side opposite to the front side frame F side so that the upper surface thereof is flush with the upper surface of the mounting plate 30. Since it is formed, the stopper receiving plate portion 32 extends to the opposite side to the inner cylindrical body 10 across both the end portions 30 and 31 of the mounting plate portion 30 and the support plate portion 31 in the cylindrical axis direction. It can be bent and formed. For this reason, the strength of the stopper receiving plate portion 32 can be improved.

  By the way, when both ends of the mounting plate portion 30 in the cylindrical axis direction are protruded outward in the cylindrical axis direction from both ends of the supporting plate portion 31 in the cylindrical axis direction, the mounting plate portion 30 is mounted when a load in the vehicle longitudinal direction is input. Stress is most concentrated in the vicinity of the boundary between the end portion of the plate portion 30 opposite to the front side frame F side and the end portion of the support plate portion 31 in the cylinder axis direction.

  Here, according to the present embodiment, the stopper receiving plate portion 32 is disposed on the end portion of the mounting plate portion 30 opposite to the front side frame F side and the end portion of the support plate portion 31 in the cylinder axis direction. , The boundary between the end of the stopper receiving plate 32 opposite to the front side frame F side and the end of the support plate 31 in the cylinder axis direction. The strength of the nearby portion can be improved. For this reason, the stopper receiving plate part 32 can be protected from stress concentration.

(Embodiment 2)
In this embodiment, as shown in FIGS. 4 and 5, the outer cylinder 11 is divided in the circumferential direction, and the divided plate portion 15 including a portion corresponding to the bottom 11 b of the outer cylinder 11 is The upper surface of the mounting plate 30 is formed integrally with the mounting plate 30 so that the upper surface is flush with the upper surface of the mounting plate 30. In the following description, the same components as those of the first embodiment will be described using the same reference numerals.

  The mount body 1 includes a hollow cylindrical metal inner cylinder 10, a hollow cylindrical metal outer cylinder 11 (cylindrical portion) provided on the outer periphery of the inner cylinder 10, and both the cylinders. The rubber elastic body 12 is provided between the cylinders 10 and 11 and connects the cylinders 10 and 11 to each other. The mount body 1 is connected and attached to the front side frame F by a metal attachment plate 30 integrally formed on the lower outer periphery thereof so as to extend outward in the vehicle width direction.

  The outer cylinder 11 is divided into two in the circumferential direction, and includes a first divided plate portion 14 including an upper portion 11a and an outer side portion 11c in the vehicle width direction, a bottom portion 11b, and an inner side portion in the vehicle width direction. And the second divided plate portion 15 including 11c. The upper portion 11a of the first divided plate portion 14 extends further inward in the vehicle width direction than the second divided plate portion 15. A fixed plate portion 14a fixed to the upper surface of the mounting plate portion 30 is bent at the lower end portion of the outer side portion 11c in the vehicle width direction of the first divided plate portion 14 so as to extend outward in the vehicle width direction. Yes. The upper surface of the portion corresponding to the bottom portion 11 b of the outer cylinder 11 (the portion other than the portion corresponding to the inner side portion 11 c in the vehicle width direction) of the second divided plate portion 15 is flush with the upper surface of the mounting plate portion 30. Are formed integrally with the mounting plate 30. And the upper part 11a of the 1st division | segmentation board part and the upper end part of the 2nd division | segmentation board part 15 are mutually joined.

  The mounting plate 30 has bosses 30c formed on the upper surface of the peripheral edge of each bolt insertion hole. The mounting plate portion 30 is fastened to the front side frame F by the bolts inserted through the bolt insertion holes and the bosses 30c.

  The stopper receiving plate portion 32 extends to both ends of the second divided plate portion 15 and the mounting plate portion 30 in the cylinder axis direction so as to extend outward (on the opposite side to the inner cylindrical body 10). Each is bent. The stopper receiving plate portion 32 is continuously formed on the entire end portion in the cylinder axis direction of the support plate portion 31 and the inner end portion in the vehicle width direction at each end portion in the cylinder axis direction of the mounting plate portion 30. That is, the stopper receiving plate portion 32 is formed in an approximately L shape when viewed from the up and down direction.

  The stopper 34 is a surface on the outer side in the cylinder axis direction of the portion of the stopper receiving plate portion 32 on the second divided plate portion 15 side, and is provided below the main spring portion 12a on the inner side in the vehicle width direction. Yes.

  In other respects, the configuration is almost the same as that of the first embodiment.

-Effect-
As described above, according to the present embodiment, the second divided plate portion 15 including the bottom portion 11 b of the outer cylindrical body 11 is the mounting plate portion 30, and the upper surface of the bottom portion 11 b of the outer cylindrical body 11 is the same as the upper surface of the mounting plate portion 30. Since they are integrally formed so as to be on a flat surface, the stopper receiving plate portion 32 is provided on both ends 30 and 31 of the mounting plate portion 30 and the second divided plate portion 15 in the cylinder axis direction. It can be bent and formed so as to extend on the opposite side to the cylindrical body 10. For this reason, the strength of the stopper receiving plate portion 32 can be improved.

  By the way, when both ends of the mounting plate portion 30 in the cylinder axis direction protrude outwardly in the cylinder axis direction from both ends of the second divided plate portion 15 in the cylinder axis direction, when a load in the vehicle longitudinal direction is input. The stress is most concentrated near the boundary between the end of the mounting plate 30 opposite to the front side frame F side and the end of the second divided plate 15 in the cylinder axis direction.

  Here, according to the present embodiment, the stopper receiving plate portion 32 is disposed at both the end portion of the mounting plate portion 30 opposite to the front side frame F side and the end portion of the second divided plate portion 15 in the cylinder axis direction. 15, the end of the stopper receiving plate 32 opposite to the front side frame F side of the mounting plate 30 and the end of the second divided plate 15 in the cylinder axis direction. The strength of the portion in the vicinity of the boundary with the portion can be improved. For this reason, the stopper receiving plate part 32 can be protected from stress concentration.

  In the above embodiment, the outer cylinder 11 is divided into two in the circumferential direction, but may be divided into three or more.

(Other embodiments)
In each of the above-described embodiments, the rubber elastic body 12 is integrally vulcanized and molded into both the cylindrical bodies 10 and 11. However, the present invention is not limited to this. For example, the inner cylindrical body and the outer cylindrical body are connected by a rubber elastic body. The cylindrical member to be formed may be press-fitted and fixed to the cylindrical portion according to the present invention.

  Moreover, in each said embodiment, although the stopper receiving plate part 32 was formed in the both ends of the cylinder axis direction of the attachment plate part 30, the support plate part 31, or the 2nd division | segmentation board part 15, only in the one end part of a cylinder axis direction It may be formed. In this case, a flange that receives the stopper 34 may be formed at the other end of the outer cylinder 11 in the cylinder axis direction.

  Moreover, in each said embodiment, although the stopper 34 was provided in the outer surface of the cylinder axial direction in the stopper receiving plate part 32, you may carry out external fitting to the edge part of the inner cylinder 10 in the cylinder axial direction. In this case, the stopper 34 comes into contact with the stopper receiving plate 32 and the power plant side bracket when the vehicle longitudinal load is inputted (that is, the stopper receiving plate 32 and the power plant side bracket receive the stopper 34). Thus, the relative movement of both cylinders 10 and 11 in the vehicle front-rear direction is restricted.

  As described above, the vibration isolator according to the present invention can be applied to applications that require the strength of the stopper receiving plate portion to be improved.

1 Mount body (main body)
10 Inner cylinder 11 Outer cylinder (cylindrical part)
11b Bottom 12 Rubber elastic body 14 First divided plate portion 15 Second divided plate portion 3 Lower bracket 30 Mounting plate portion 31 Support plate portion 32 Stopper receiving plate portion 34 Stopper A Engine mount (anti-vibration device)
F Front side frame (Vibration receiving side)

Claims (4)

An inner cylinder that is provided so that the cylinder axis direction is oriented in the horizontal direction and is attached to the vibration source side, a cylindrical portion that is provided around the inner cylinder, and the inner cylinder and the cylindrical portion. A main body having a rubber elastic body provided therebetween;
A mounting plate provided to extend in the horizontal direction from the main body side to the vibration receiving side, and attached to the vibration receiving side;
At least one part is provided on at least one end side in the cylinder axis direction of the main body part so as to be located outside the end surface in the cylinder axis direction of the cylindrical part in the cylinder axis direction, and the inner cylinder body and the cylindrical part An anti-vibration device comprising a stopper for restricting relative movement in the cylinder axis direction,
The mounting plate portion is integrally formed with a support plate portion extending on the side opposite to the vibration receiving side so that the upper surface thereof is on the same plane as the upper surface of the mounting plate portion,
The cylindrical part is supported on the upper surface of the support plate part,
At least one end portion of the mounting plate portion and the support plate portion in the cylinder axis direction is bent so that a stopper receiving plate portion that receives the stopper straddles both is extended to the side opposite to the inner cylindrical body. An anti-vibration device characterized in that The vibration isolator according to claim 1, wherein
The mounting plate portion has both ends in the tube axis direction protruding outward in the tube axis direction from both ends in the tube axis direction of the support plate portion, respectively.
The anti-vibration device, wherein the stopper receiving plate portion is formed at an end portion of the mounting plate portion opposite to the vibration receiving side and an end portion of the support plate portion in the cylinder axis direction. An inner cylinder that is provided so that the cylinder axis direction is oriented in the horizontal direction and is attached to the vibration source side, a cylindrical portion that is provided around the inner cylinder, and the inner cylinder and the cylindrical portion. A main body having a rubber elastic body provided therebetween;
A mounting plate provided to extend in the horizontal direction from the main body side to the vibration receiving side, and attached to the vibration receiving side;
At least one part is provided on at least one end side in the cylinder axis direction of the main body part so as to be located outside the end surface in the cylinder axis direction of the cylindrical part in the cylinder axis direction, and the inner cylinder body and the cylindrical part An anti-vibration device comprising a stopper for restricting relative movement in the cylinder axis direction,
The cylindrical portion is formed in a plate shape and is divided into two or more in the circumferential direction, and has a divided plate portion including a bottom portion of the cylindrical portion,
The divided plate portion is integrally formed with the mounting plate portion so that the upper surface of the bottom portion of the cylindrical portion is flush with the upper surface of the mounting plate portion,
At least one end portion of the mounting plate portion and the divided plate portion in the cylinder axis direction is bent so that a stopper receiving plate portion that receives the stopper straddles both is extended to the opposite side of the inner cylindrical body. An anti-vibration device characterized in that The vibration isolator according to claim 3,
The mounting plate part has both ends in the cylinder axis direction protruding outward in the cylinder axis direction from both ends in the cylinder axis direction of the divided plate part,
The anti-vibration device, wherein the stopper receiving plate portion is formed at an end portion of the mounting plate portion opposite to the vibration receiving side and an end portion of the divided plate portion in the cylinder axis direction.

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