Toyoda Gosei Co., Ltd.

Toyo Tire Rubber Co., Ltd.

Hiroshi Yokoi

Hideyuki Imai

Takashi Maeno

Takeshi Naito

Osamu Nakagaki

Shigeki Takeo

Tomoyuki Sawatari

Hisayoshi Kato

Masanao Gotou

Tadanobu Iwasa

Akira Mabuchi

Kanae Matsumura

Katsuya Hadano

Masato Ueno

Katsumasa Takeuchi

Satomi Watanabe

Kazutoshi Miyake

Kyouichi Fujinami

Kazuya Ito

Takayoshi Iwata

Yoshihiro Ogawa

Takaaki Ando

The liquid-sealing type vibration isolating apparatus of the present invention includes a coupler attached to a vibrating body, a holder, an insulator for absorbing and isolating vibration from the vibrating body at a position between the coupler and the holder, and a vibration isolating mechanism directly following the insulator and including liquid chambers sealing an incompressible fluid. This vibration isolating mechanism has a main chamber sealing a liquid, having a part of wall thereof formed by the insulator, an auxiliary chamber communicating with the main chamber via an orifice, and an equilibrium chamber provided in a portion of the main chamber via a diaphragm and having a varying volume in the chamber. The vibration isolating apparatus further includes switching mechanism for introducing a negative pressure and the atmospheric pressure continuously or in synchronization with vibration of the vibrating body, and a control mechanism for controlling this switching operation.

Liquid-sealing type variation isolating apparatus

The liquid-sealing type vibration isolating apparatus of the present invention includes a coupler configured to be attached to a vibrating body, a holder, an insulator for absorbing and isolating vibration from the vibrating body at a position between the coupler and the holder, and a vibration isolating mechanism directly following the insulator and including liquid chambers sealing an incompressible fluid. This vibration isolating mechanism has a main chamber sealing a liquid, having a part of a wall thereof formed by the insulator, an auxiliary chamber communicating with the main chamber via an orifice, and an equilibrium chamber provided in a portion of the main chamber via a diaphragm and having a varying volume in the chamber. The vibration isolating apparatus further includes a switching mechanism for introducing a negative pressure and the atmospheric pressure continuously or in synchronization with vibration of the vibrating body, and a control mechanism for controlling this switching operation.

Liquid-sealing type vibration isolating apparatus

Stabilizer bushing

The liquid-sealing type vibration isolating apparatus of the present invention includes a coupler attached to a vibrating body, a holder, an insulator for absorbing and isolating vibration from the vibrating body at a position between the coupler and the holder, and a vibration isolating mechanism directly following the insulator and including liquid chambers sealing an incompressible fluid. This vibration isolating mechanism has a main chamber sealing a liquid, having a part of wall thereof formed by the insulator, an auxiliary chamber communicating with the main chamber via an orifice, and an equilibrium chamber provided in a portion of the main chamber via a diaphragm and having a varying volume in the chamber. The vibration isolating apparatus further includes switching means for introducing a negative pressure and the atmospheric pressure continuously or in synchronization with vibration of the vibrating body, and control means for controlling this switching operation.

The present invention is directed to a vibration insulating assembly including a rubber vibration insulator and metallic members bonded thereto. In particular, the present invention relates to a method for manufacturing the same, by which the quality of the resulting assembly is improved by providing a high bonding strength between the vibration insulator and metallic members. Retainers are provided about the peripheries of the bonding surfaces of the rubber vibration insulator in order to restrict displacement and deformation of the rubber vibration insulator across the bonding surfaces or at the bonding interface with the metallic members and to facilitate its positioning. The presence of the retainers allows for the application of a predetermined pressure on the bonding surfaces to enhance the bonding strength while preventing an undesirable strain from forming in the bonding surface of the rubber vibration insulator. At least one and preferably a plurality of grains or recessed portions are preferably formed in the bonding surfaces of the rubber vibration insulator to be bonded to the metallic members. An adhesive, which is preferably solvent-free, is applied to these bonding surfaces to effect bonding.

Vibration insulating assembly and method for making the same

A bonded structure 1 including an aluminum alloy plate 3 and a rubber 7 of vibration proof rubber adhering to each other with an adhesive wherein the aluminum alloy plate 3 includes aluminum alloy containing no more than 12% by weight of silicon and no more than 2.2% by weight of copper and the application of such aluminum alloy to the bonded structure 1 decreases the total weight of the structure 1 and improves both corrosion resistance and adhesiveness under corrosive conditions wherein the bonded structure is favorably applied to damper pulleys and shock-absorbing body mounts of vehicles.

Bonded structure of aluminum alloy and rubber and manufacture process

A vibration isolating mount has a columnar vibration isolating rubber body, an upper retaining plate bonded to an upper end surface of the columnar rubber body, a lower retaining plate bonded to a lower end surface of the columnar rubber body, an upper bracket plate made of nonferrous metal and secured to an upper surface of the upper retaining plate, and a lower bracket plate made of nonferrous metal and secured to a lower surface of the lower retaining plate, and two chemical conversion coating layers formed in a lower surface of the upper retaining plate and an upper surface of the lower retaining plate. Each chemical conversion coating layer is made of one of zinc phosphate and calcium zinc phosphate, and improves the adhesive strength between each retaining plate and the rubber body while preventing each retaining plate from peeling off from the rubber body.

Vibration isolating mount

There is provided a rubber adhesive for bonding rubber to metal or synthetic resin. The rubber adhesive comprises a chlorinated polymer as a principal component and a dithiocarbamate. The dithiocarbamate is, for example, nickel dibutyldithiocarbamate, which is added in amount of 0.5 to 20 parts by weight, preferably 4 to 16 parts by weight, for 100 parts by weight of solids in the principal component.

Rubber adhesive

Growing community of inventors

Nagoya, Japan

Hiroshi Yokoi