Toyota Jidosha Kabushiki Kaisha

Toyoda Gosei Co., Ltd.

Toyota Jidosha Kogyo Kabushiki Kaisha

Yoshio Ohta

Masaaki Takizawa

Kiyoteru Ijichi

Nobuaki Katayama

Kazuhito Ikemoto

Isao Ozawa

Tadashi Kimura

Noboru Ito

A damper device including first and second support members, one of which is fixed to a support element and the other of which is fixed to a suspended element, an elastic block made of a deformable, elastic material for elastically coupling the two support members and a sealed space formed therein filled with a liquid. One partition member has its periphery fixed to the first support member and divides the sealed space into two chambers. The partition member has therein a member movable along a short distance. Fluid passages are formed in a wall portion of the first support member so as to communicate between the two chambers and to impart flow resistance to the liquid flowing therethrough. The partition member can be suspended to the first support member by an elastic sheet and be movable along the axial direction of the first support member. A solenoid is mounted on the inner wall of the first support member. When the solenoid is energized, the partition member can be fixed to the first support member. When the damper device is used in an engine suspension of a vehicle with vibrations of high frequency and small magnitude of vibration, relative movement of the first and second support members is damped by displacement of the movable member of the partition member. With low-frequency vibrations, vibrations having a relatively large magnitude are damped by the flow resistance of the liquid flowing through the fluid passages. When the engine is in the idling mode, the solenoid is deenergized, and the partition member is kept movable.

Fluid-filled damper device

An engine-transmission assembly is supported in an engine room of a vehicle by two elastic support devices supporting it substantially at opposite ends of its rolling axis of inertia and two other elastic support devices supporting it substantially at opposite ends of its pitching axis of inertia. The major part of the weight of the engine-transmission assembly may be borne by the two elastic support devices on the rolling axis of inertia, which may be simple rubber block type support devices; and the two elastic support devices on the pitching axis of inertia may be of a type able to present variable spring constant and/or damping coefficient, optionally according to the driving conditions of the vehicle.

Mounting construction for engine-transmission assembly

The shift lever of a transmission is comprised of a first shift lever having a cylindrical portion for mounting a grip, and a rod-like second shift lever inserted into the cylindrical portion of the first shift lever. In the space defined between the cylindrical portion of the first shift lever and the second shift lever, there are packed a plurality of soft rubber rings and at least one hard rubber rings. The soft rubber rings serve to diminish the propagation of the vibration through the second shift lever to the first shift lever. The hard rubber ring is bonded onto one of the peripheral surfaces of the first and the second shift lever in radially spaced apart relation to the other of the peripheral surfaces of the first and the second shift lever and serves to prevent an excessive bending of the first shift lever relative to the second shift lever during the operation of the shift lever.

Shift lever of a transmission for an automobile

Growing community of inventors

Toyota, Japan

Yoshio Ohta