Title:
【発明の名称】ブレーキ、ボビン及び電磁アセンブリ
Document Type and Number:
Japanese Patent JP2003528260
Kind Code:
A
Abstract:
A spring-set, electromagnetically released brake that requires a relatively small amount of current to release is provided. The brake includes a magnet shell disposed about a first axis. The shell includes a radially outwardly extending pole. The brake also includes an armature disposed radially outwardly of the pole and pivotable at a first axial end and a first engagement element, such as a brake shoe, coupled to the armature proximate a second axial end of the armature. The brake further includes a spring disposed about the pole. The spring biases the armature radially outwardly to urge the first engagement element towards a second engagement element such as a friction surface in a brake drum. Finally, the brake includes a coil disposed about the pole and means for selectively energizing the coil to urge the armature radially inwardly and the first engagement element away from the second engagement element. A bobbin for use in the brake is also provided. The bobbin includes a substantially cylindrical body portion disposed about a second axis and first and second discs extending radially outwardly from first and second ends, respectively, of the body portion. The bobbin further includes a flange extending radially inwardly relative to the second axis and a projection extending axially relative to the second axis. The flange and projection are configured to engage the magnet shell and prevent radial and axial movement of the bobbin and coil.
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Inventors:
Gustin, David, Sea
Ryan, Mikele, F
Pink, tad, sea
Nelson, Dennis, Jay
Ryan, Mikele, F
Pink, tad, sea
Nelson, Dennis, Jay
Application Number:
JP2001518279A
Publication Date:
September 24, 2003
Filing Date:
August 23, 2000
Export Citation:
Assignee:
Vana, Electric, Technaraji, Ink
International Classes:
F16D51/20; F16D63/00; F16D65/14; F16D65/22; (IPC1-7): F16D51/20; F16D65/27
Attorney, Agent or Firm:
Sanada Yuzo (2 outside)