Toyoda Koki Kabushiki Kaisha

Toyota Jidosha Kabushiki Kaisha

Yoshiaki Senga

Hiroshi Takuno

Kunihiko Suzuki

Tsuyoshi Murakami

Takashi Hosokawa

Naoyuki Sakai

Naoyuki Kokubo

Masaji Yamamoto

Satoshi Ashida

Hisashi Fukuchi

Mikiharu Oyabu

Hideyuki Saito

Kenji Arai

Yasuyuki Watanabe

Hiroyuki Inoue

Akio Mukainaka

In a power transfer device composed of a bottomed cylindrical housingrotatably mounted on an inner shaftand a main friction clutchand a pilot friction clutchcoaxially assembled within a cylindrical space between the housingand inner shaftthrough a cam mechanism, the thickness of a shim platefor adjustment of a clearance between an inner clutch plate or outer clutch plate located at one side of an electromagnetic clutchused as the pilot friction clutch and an inner end surface of an end wall blockthreaded into an opening end portion of the housingis determined on a basis of a clearance Lbetween one side surface of a thrust bearingassembled with an input cam memberof the cam mechanismand an inner clutch plate or outer clutch plate located at one side of the electromagnetic clutch

Drive power transmission comprising electromagnetic clutch

A driving force transmission device transmits driving force between an outer case made of magnetic substance and inner shaft. A main clutch mechanism, an electromagnetic type pilot clutch mechanism and cam mechanism are arranged between the outer case and inner shaft. The main clutch mechanism transmits driving force between the outer case and inner shaft. The pilot clutch mechanism controls operation of the main clutch mechanism and comprises an electromagnet, an armature and a friction clutch. The cam mechanism amplifies output of the pilot clutch mechanism and transmits amplified output to the main clutch mechanism. The driving force transmission device further comprises a first regulation member and/or a second regulating member. The first regulating member adjusts a clearance between the cam mechanism and the armature to be more than a predetermined distance. The second regulating member adjusts an axial position of the friction clutch.

Driving force transmission device

A drive force transmission apparatus includes a housing connected to one of two shafts that are rotatable relative to each other, a rotary shaft rotatably supported by the housing and connected to the other shaft, and a multiple disc clutch composed of a plurality of outer plates engaged with the housing in the rotational direction and a plurality of inner plates engaged with the rotary shaft in the rotational direction. The multiple disc clutch transmits rotational torque between the housing and the rotary shaft through frictional engagement between the outer plates and the inner plates. The apparatus also includes a pressure generation mechanism for generating a pressure corresponding to a rotational-speed difference between the housing and the rotary shaft and for applying the generated force to the multiple disc clutch via a piston. The pressure generating means is composed of a plurality of rotary blades accommodated within a cylindrical space formed between the piston and the housing and rotating together with the rotary shaft, a viscous fluid charged into a plurality of pressure chambers defined by the housing, the piston, and the rotary blades, and a free blade accommodated within at least one pressure chamber. The free blade is freely movable in the circumferential direction between the rotary blades.

Drive force transmission apparatus

Growing community of inventors

Kariya, Japan

Yoshiaki Senga