Toyota Jidosha Kabushiki Kaisha

Tadashi Takemura

Masataka Sugiyama

Yoshinori Morita

Hiroaki Kimura

Kazunori Sakai

Providing a vehicle damper device enabling acquisition of hysteresis torque with a simple structure. When the stoppersandare actuated and the relative rotation is regulated between the platesand the disc plate, a slip occurs between the platesand the hub member. As a result, a friction force is generated between the platesand the hub member, and a hysteresis torque is generated based on this friction force. Since this configuration can be achieved by simply providing the plates, the clip, and the stoppers, the hysteresis torque can be acquired with a simple configuration without a significant design change.

Damper device for vehicle

A vehicular damper device interposed between an engine and an output shaft and provided with a dual-mass flywheel includes: a first inertial body in the form of a disk connected to a crankshaft of said engine and rotatable about an axis of said crankshaft; a torsional damping portion interposed between said first inertial body and said output shaft; a second inertial body in the form of a disk rotatable about said axis and having a smaller outside diameter than said first inertial body, said second inertial body cooperating with said first inertial body to constitute said dual-mass flywheel; and an elastic member interposed between said first inertial body and said second inertial body and operatively connecting said first and second inertial bodies such that said elastic member is elastically deformable according to an amount of relative rotation of the first and second inertial bodies.

Vehicular damper device

A vehicle damper device disposed between a power transmission member coupled to an output shaft of an engine and a power transmission shaft disposed concentrically and rotatably relative to the power transmission member, the vehicle damper device includes: an input-side rotating member to which power of the engine is input via the power transmission member; an output-side rotating member relatively non-rotatably coupled to the power transmission shaft to be concentric and rotatable relative to the input-side rotating member; a mass body disposed rotatably relative to the input-side rotating member; a first elastic member interposed between the input-side rotating member and the mass body; and a second elastic member interposed between the input-side rotating member and the output-side rotating member.

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Toyota, Japan

Tadashi Takemura