Ogura Clutch Company, Ltd.

Aisin Seiki Kabushiki Kaisha

Takashi Yamaguchi

Tsutomu Takeuchi

Yoshihiro Kurosu

Ryoichi Fukumoto

Toshihiko Ishida

Tomoaki Nishimura

Keisuke Matsumoto

Haruhiko Ushirode

Seiichi Sumiya

Tomohiro Negishi

Yasuyuki Iizuka

Eisuke Umemura

Yoshikazu Arai

Fumiaki Togitani

Hiroyasu Onai

Masao Imamura

Satoshi Hayashi

A seal structure for an electromagnet lead wire includes an annular yoke including an annular groove, a wiring hole configured to pass a lead wire of an exciting coil, an insulating resin configured to seal the exciting coil, and a seal member arranged in the hole. The wiring hole includes a though hole of a case, and a concave portion of the yoke. The insulating resin includes a projecting portion whose distal end face is located in the concave portion. The seal member includes a columnar portion inserted into the though hole, and a flange portion located in the concave portion. The flange portion is sandwiched and compressed between the device inner surface of the case and the distal end face of the insulating resin.

Seal structure for electromagnetic lead wire

An electromagnetic clutch includes a rotation transmission member supported by an input shaft portion via a bearing. The rotation transmission member includes a movement regulating portion having abutment portions that abut against the bearing. The clutch further includes first and second spring members that bias an armature toward a braking member, and a connecting member overlaid on the movement regulating portion. The connecting member has first holes at portions facing the abutment portions, and second holes at portions facing regions between the abutment portions. One-end portions of the first and second spring members are attached to the armature. First fixing members inserted into the first holes fix the other-end portions of the first spring members to the connecting member. Second fixing members inserted into the second holes fix the other-end portions of the second spring members to the connecting member and fix the connecting member to the movement regulating portion.

Electromagnetic clutch

An electromagnetic clutch device includes an armature, a rotor, an electromagnet, and a silencing member. The armature is supported by a driving member so that the armature is movable in the axial direction and rotate integrally with the driving member. The rotor is arranged coaxially with the armature, rotate with respect to the armature and rotate integrally with an output member. The electromagnet presses the armature and the rotor against each other based on an electromagnetic attraction force generated when current is supplied through the electromagnet to be coupled with each other in the torque transmittable manner. The silencing member is provided on an outer circumferential portion of the armature to attenuate noise generated by the vibration of the armature in a state where the silencing member is out of contact with any member other than the armature.

Electromagnetic clutch device, actuator device and controller for controlling opening and closing body for vehicle

A drive device is provided with a housingand an electromagnetic clutch mechanismaccommodated in the housing. The electromagnetic clutch mechanismis provided with an armaturerotatably supported in the housing, a rotorarranged to face the armatureand rotatably supported in the housing, and a coil. An annular magnetis fixed on the outer circumference surface of the rotor. A sensorarranged inside the housingdetects a polarity change of the magnetin association with rotation of the rotor. The magnetis provided with an annular wall portionextending toward the armaturebeyond a surface on which the armatureis in contact with the rotorwith respect to the axial direction. The annular wall portionis spaced radially outward from the armature. The annular wall portionprevents abrasion powder produced on actuation of the electromagnetic clutch mechanismfrom being scattered.

Drive device

Brushes () which come into slidable contact with slip rings () having power feeding terminals () electrically connected to a power feeding side include extending portions () extending in the radial direction of a field core (). These extending portions () are bent in a direction away from a coil bobbin (). The third bent portions () located at the ends of the extending portions are electrically connected to the terminal portions () of coil terminals. An outer diameter Rof a mounting recess portion () which stores a power feeding device () of the field core () is smaller than an inner diameter Rof the coil bobbin (). This makes it possible to position the mounting recess portion () at a distance H from the coil bobbin () in the field core () in the arrow A direction, thereby reducing the size of the rotating coil type electromagnetic clutch () in the arrow A-B direction.

Rotating coil type electromagnetic clutch

Growing community of inventors

Gunma, Japan

Takashi Yamaguchi