公开(公告)号：US10962074B2

公开(公告)日：2021-03-30

申请号：US16340885

申请日：2017-10-12

Applicant: YAMASHITA RUBBER CO., LTD.

Inventor： Yuichi Nakamaru ,  Hiroki Kashihara

IPC: F16F1/38 ,  F16F15/08 ,  F16F1/387

Abstract: An object of the present invention is to provide a vibration-damping device which enhances the durability of a rubber elastic body; and inhibits the occurrence of voids in an outer cylinder. The vibration-damping device includes: an inner cylinder; a resin-made outer cylinder arranged outside the inner cylinder in a radial direction of the outer cylinder; and a rubber elastic body connecting the inner cylinder and the outer cylinder.

公开(公告)号：US20190329640A1

公开(公告)日：2019-10-31

申请号：US16392318

申请日：2019-04-23

Applicant: YAMASHITA RUBBER CO., LTD. ,  HONDA MOTOR CO., LTD.

Inventor： Hirokazu Kadowaki ,  Masataka Hirano ,  Yusuke Arai

IPC: B60K5/12 ,  F16F1/36

Abstract: A vibration prevention device i ncludes a vehicle body-side bracket having an inner space and a vibration prevention member disposed in the inner space. A press-fitting surface and a press-fitting groove are formed on an inner surface of the vehicle body side bracket. The press-fitting surface and the press-fitting groove extend from an edge portion of the inner space opening through an outer surface of the bracket, The vibration prevention member has a first attachment member, a second attachment member, and an insulator disposed between the first attachment member and the second attachment member. The second attachment member has an abutting portion pressed against the press-fitting surface and an attachment portion press-fitted into the press-fitting groove.

公开(公告)号：US10279670B2

公开(公告)日：2019-05-07

申请号：US15545281

申请日：2016-01-20

Applicant: YAMASHITA RUBBER CO., LTD.

Inventor： Yuichi Nakamaru

IPC: B60K5/12 ,  F16F13/10 ,  F16F1/36 ,  F16F1/371

Abstract: Provided is an anti-vibration device which is provided between a vibration-side bracket attached to a vibration member and a non-vibration-side bracket attached to a non-vibration member, the anti-vibration device including: a first attachment member attached to the vibration-side bracket; a second attachment member attached to the non-vibration-side bracket; and an insulator provided between the first attachment member and the second attachment member, wherein the first attachment member includes a stopper portion which faces an engagement portion formed on the non-vibration-side bracket, and the insulator includes a cover portion which covers at least a surface of the stopper portion facing the engagement portion.

公开(公告)号：US20190113100A1

公开(公告)日：2019-04-18

申请号：US16090207

申请日：2017-03-22

Applicant: YAMASHITA RUBBER CO., LTD.

Inventor： Hitoshi SHIMADA

IPC: F16F15/08 ,  F16F1/376 ,  B60K5/12 ,  F16F1/38

Abstract: Provided is a vibration damping device that reduces parts cost and improves productivity. The vibration damping device includes: a mounting member (10) that is attached to a vibration source; a holder (20) that is attached to a vibration receiver; and an insulator (30) that connects the mounting member (10) with the holder (20), wherein the holder (20) has a base portion (21) to which an end of the insulator (30) is coupled and a stopper portion (22) that rises from the base portion (21), and the insulator (30) has a pair of rubber feet (31 a, 31 b) that faces each other at a distance, wherein the pair of rubber feet (31a, 31 b) defines a cavity (35) therebetween, and the base portion (21) has an opening (25) formed therein at a position corresponding to the cavity (35).

公开(公告)号：US09995363B2

公开(公告)日：2018-06-12

申请号：US14777777

申请日：2014-03-19

Applicant: YAMASHITA RUBBER CO., LTD.

Inventor： Yutaka Shinohara

IPC: F16F13/14 ,  B60G7/00

CPC classification number: F16F13/1463 ,  B60G7/008 ,  B60G2204/143 ,  B60G2204/4106

Abstract: A pair of fluid chambers in which incompressible fluid is sealed and a pair of orifice-forming members that allows one fluid chamber to communicate with the other fluid chamber are arranged between an inner cylinder and an outer cylinder. The orifice-forming member has a longitudinal groove that communicates with respective fluid chambers, an orifice channel, and a liquid storage section that allows the longitudinal groove to communicate with the orifice channel. The liquid storage section is formed wider and deeper than the orifice channel.

公开(公告)号：US20180128344A1

公开(公告)日：2018-05-10

申请号：US15569762

申请日：2016-04-28

Applicant: YAMASHITA RUBBER CO., LTD.

Inventor： Hirokazu KADOWAKI

IPC: F16F13/10 ,  B60K5/12

CPC classification number: F16F13/105 ,  B60K5/12 ,  B60K5/1208 ,  F16F2230/0005 ,  F16F2230/38

Abstract: The present invention provides a liquid-sealed vibration-damping device capable of improving damping performance while preventing increase in size and weight thereof, the liquid-sealed vibration-damping device including: a first attachment member; a second attachment member; an insulator; a vibration-damping unit having a partition member; and a housing space provided in the second attachment member and housing the vibration-damping unit, wherein the second attachment member includes an outer tubular part and a fixing part protruding from the outer tubular part; and a portion of the housing space extends to the fixing part.

公开(公告)号：US09939040B2

公开(公告)日：2018-04-10

申请号：US14778136

申请日：2014-03-05

Applicant: YAMASHITA RUBBER CO., LTD.

Inventor： Yutaka Shinohara

IPC: F16F13/04 ,  F16F13/16 ,  B60G15/06

CPC classification number: F16F13/16 ,  B60G15/06

Abstract: A liquid-sealed vibration prevention device is provided with a main rubber-elastic body for elastically connecting an inner cylinder with an intermediate sleeve, an outer cylinder for sheathing the intermediate sleeve, and a seal rubber layer positioned on the inner-circumferential surface of the outer cylinder. The intermediate sleeve has an upper ring part, and the upper end face of the upper ring part is provided with an inclined projection part which extends diagonally upward toward the inner cylinder. Moreover, a pair of rotation-stop rubbers that holds the inclined projection part in the circumferential direction of the intermediate sleeve is provided on the inner side of an annular recess of the outer cylinder and on the upper part side of the seal rubber layer.

公开(公告)号：US20170284501A1

公开(公告)日：2017-10-05

申请号：US15474537

申请日：2017-03-30

Applicant: Yamashita Rubber Co., Ltd.

Inventor： Hirokazu Kadowaki

IPC: F16F13/10 ,  B60K5/12 ,  F16F15/02

CPC classification number: F16F13/10 ,  B60K5/1208 ,  F16F13/103 ,  F16F15/022

Abstract: A liquid-sealed vibration damping device is provided that allows an outer cylindrical member to have a substantially uniform interference margin in the circumferential direction, while improving an assembling property. A second mounting member mounted on a non-vibration source includes: a first frame in a cylindrical shape that is connected to a lower portion of an insulator; a second frame in a cylindrical shape that holds a partition member arranged below the insulator; and a connector that connects the first frame with the second frame. The connector includes: engaging parts that are arranged on the first frame; and elastic hook parts that are arranged on the second frame. The elastic hook parts are arranged at intervals on each of main frame parts in the circumferential direction thereof, and the elastic hook parts arranged on corners have lower rigidity than those arranged on the main frame parts.

公开(公告)号：US20170175844A1

公开(公告)日：2017-06-22

申请号：US15379700

申请日：2016-12-15

Applicant: YAMASHITA RUBBER CO., LTD. ,  HONDA MOTOR CO., LTD.

Inventor： Hirokazu Kadowaki ,  Keisuke Kawabe

IPC: F16F13/10 ,  B60G15/06 ,  B60K5/12 ,  F16F15/02

CPC classification number: F16F13/10 ,  B60G7/02 ,  B60G13/16 ,  B60G15/06 ,  B60G2202/24 ,  B60G2202/25 ,  B60G2204/41 ,  B60G2204/41062 ,  B60G2500/10 ,  B60K5/1208 ,  F16F15/022 ,  F16F2224/025 ,  F16F2238/04

Abstract: An antivibration device capable of attaining damping performance in a comparatively broad frequency band range is provided. In the antivibration device, between an inner cylinder and an outer cylinder, formed are a first liquid chamber, a second liquid chamber, and a third liquid chamber. There are provided a first orifice passage that makes the first liquid chamber and the second liquid chamber communicate with each other, and a second orifice passage that makes one of the first liquid chamber and the second liquid chamber and the third liquid chamber communicate with each other.

公开(公告)号：US09546705B2

公开(公告)日：2017-01-17

申请号：US14378375

申请日：2012-12-18

Applicant: HONDA MOTOR CO., LTD. ,  YAMASHITA RUBBER CO., LTD.

Inventor： Hisashi Ishimatsu ,  Tetsu Ogawa ,  Masashi Furuya ,  Takahiro Kato ,  Jun Saito ,  Shigeo Kojima ,  Keiichi Arakawa

IPC: F16F1/38 ,  F16F1/16 ,  B60G21/055

CPC classification number: F16F1/38 ,  B60G21/0551 ,  B60G2202/135 ,  B60G2204/1222 ,  B60G2204/41 ,  B60G2206/821 ,  F16F1/16 ,  F16F1/3835 ,  F16F1/3842

Abstract: A bush (20) includes a base material (45) that is disposed at a vehicle body (12), an inter ring (48) that is integrally disposed at the base material (45), and a surface layer (51) that is disposed inside the inter ring (48). The inter ring (48) is arranged along an opening (47) in such a manner as to surround the opening (47). The surface layer (51) includes an insertion hole (52) and is integrally formed from a self-adhesive elastic material into a thin wall shape. A stabilized rod (14) is inserted into the insertion hole (52).

Abstract translation: 衬套（20）包括设置在车体（12）的基体材料（45），整体设置在基材（45）上的环形环（48）和表面层 设置在所述环（48）内。 环形件（48）沿着开口（47）以围绕开口（47）的方式布置。 表面层51包括插入孔52，并且由自粘弹性材料整体形成为薄壁形状。 将稳定的杆（14）插入插入孔（52）中。