Title:
ELECTROMAGNETIC CLUTCH
Document Type and Number:
WIPO Patent Application WO/2012/133883
Kind Code:
A1
Abstract:
Provided is an electromagnetic clutch (X) which comprises a rotating shaft (1); a magnetic pole body (2) and a rotor (3) disposed to face each other along an axial direction of the rotating shaft (1); and an armature (4) capable of moving in a direction attachable to or detachable from the rotor (3) along the axial direction of the rotating shaft (1) and forming a magnetic circuit with the magnetic pole body (2) and the rotor (3), the armature (4) being moved in the axial direction of the rotating shaft (1) by electromagnetic suction force to press the rotor (3) when an exciting coil (21) is in an excitation state. According to present invention, the electromagnetic clutch can be manufactured at a reduced cost and provide an accurate torque transmission. Herein, the rotating shaft (1) is configured by an input side shaft portion (11) which is a non-magnetic body and formed of a material having enough strength to support rotation of the rotor (3) and the armature (4); and an output side shaft portion (12) which is a magnetic body capable of rotating in an integrated manner with the input side shaft portion (11).
Inventors:
NAKANO RYUTARO (JP)
SEKIKAWA NOBUYUKI (JP)
OKUBAYASHI HIROMI (JP)
SEKIKAWA NOBUYUKI (JP)
OKUBAYASHI HIROMI (JP)
Application Number:
PCT/JP2012/058804
Publication Date:
October 04, 2012
Filing Date:
April 02, 2012
Export Citation:
Assignee:
SINFONIA TECHNOLOGY CO LTD (JP)
NAKANO RYUTARO (JP)
SEKIKAWA NOBUYUKI (JP)
OKUBAYASHI HIROMI (JP)
NAKANO RYUTARO (JP)
SEKIKAWA NOBUYUKI (JP)
OKUBAYASHI HIROMI (JP)
International Classes:
F16D27/112; F16D27/10
Foreign References:
| JPS5488616U | 1979-06-22 | |||
| JPH1182551A | 1999-03-26 | |||
| JP2003004067A | 2003-01-08 | |||
| JPH10148223A | 1998-06-02 | |||
| JPH07286631A | 1995-10-31 |
Attorney, Agent or Firm:
SANO, Tadachika (JP)
Sadaya Sano (JP)
Sadaya Sano (JP)
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Claims: