Bridgestone Corporation

Komatsu Corporation

Masayoshi Kawada

Satoshi Tanaka

Nobuaki Sato

Tomoyuki Moriyama

Minoru Tazawa

Giichi Onuki

Junichi Nomizo

Hiroaki Motomura

Included are an outer attachment member, which is coupled to one of a vibration generatorand a vibration receiver, an inner attachment member, which is coupled to the other one of the vibration generatorand the vibration receiver, and an elastic body, which is positioned on the outer side of the inner attachment memberto couple the outer attachment memberand the inner attachment member. The outer attachment memberis disposed in at least one pair on the outer side of the elastic body, with the inner attachment memberbeing interposed between the at least one pair of outer attachment members. Each of the at least one pair of outer attachment membersincludes an attachment surface, which is attached to the one of the vibration generatorand the vibration receiver.

Vibration-damping device and attachment structure for vibration-damping device

To provide an engine unit support structure with excellent vibration damping performance and durability, the engine unit support structure () is provided with an engine unit () having an engine (), a mounting base () for mounting the engine unit () thereon, and a plurality of elastic support bodies coupled to the engine unit () and the mounting base () to thereby support the engine unit (), in which the plurality of elastic support bodies include a first elastic support body (A) disposed under the lower surface () of the engine unit () in a position closest, than any other of the plurality of the elastic support bodies, to the rotation center of the output shaft of the engine () and three or more of second elastic support bodies (B,B, . . . ), and the first elastic support body (A) is disposed within a closed space X in plan view formed by interconnecting the centers of the neighboring second elastic support bodies (B,B, . . . ).

Engine unit support structure and engine unit mounting method

An anti-vibration structure includes an inner elastic body that is a separate body to a multi-layered material and that is disposed in a through-hole piercing through a layering direction of the multi-layered material, and a restricting member that has at least a portion embedded in the inner elastic body, that has one end coupled to an upper plate and another end coupled to a lower plate and that restricts separation of the upper plate and the lower plate.

Anti-vibration structure

A vibration isolation structure is provided with a stress reduction section that can reduce the hydrostatic stress from tensional load along a stacking direction of portions of a composite laminated member corresponding to a first end side and a second end side in a shear direction orthogonal to the stacking direction to lower than the hydrostatic stress from tensional load along the stacking direction of other portions of the composite laminated member.

Vibration isolation structure

A vibration damping system () includes a laminated body () formed by alternately laminating rigid hard plates () and viscoelastic soft plates (). At both ends in the laminating direction, the laminated body () is connected to a vibration generation section and a vibration receiving section, respectively. The soft plate () arranged in a region subjected to a higher isostatic stress is made thicker than the soft plates () arranged in other regions. Even when the vibration damping system () is applied with vibration having a large amplitude and prying deformation is thereby caused, the soft members () are prevented from isostatic fracture to provide a significantly improved durability of the vibration damping system ().

Vibration damping system

Vehicle suspension

A vibration damping system includes a laminated body () formed by alternately laminating rigid hard plates () and viscoelastic soft plates (), and pair of shoe plates () at both ends in the laminating direction of the laminated body (), to form a vibration damping body (). The show plates () are connected to each other by a displacement restriction member (), so as to applying a pre-compression to the laminated body. The vibration damping body () is divided into a plurality of segments (A,B,C) in the laminating direction, for allowing the vibration-proof main body () to be separated and displaced at the parting faces (), without causing an excessive tensile force in the vibration damping system, even if the displacement restriction member () has worn to degrade the pre-compression function and a tensile force is applied due to a prying deformation. Thus, the soft members () of the laminated body () are effectively protected from isostatic fracture, to provide a significantly improved durability of the vibration damping system.

Growing community of inventors

Tokyo, Japan

Masayoshi Kawada