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Title:
ELECTROMAGNETIC BRAKE DEVICE
Document Type and Number:
Japanese Patent JP2014111970
Kind Code:
A
Abstract:

To provide an electromagnetic brake device capable of forcibly separating brake shoes from a disc with smaller operating force, and reducing a working space.

In an electromagnetic brake device including an armature 14 to which at least a part of brake shoes 11, 13 is mechanically connected, a brake spring 18 for biasing the brake shoes in the braking direction, and a core 17 sucking the armature by energization and separating the brake shoes from the disc, a forcible releasing device 24 for forcibly separating the brake shoes from the disc by a manual operation, includes a ball screw mechanism 30 having a movable body 26 connected with a forcible release bolt 25 fixed to the armature 14, a fixed body 27 disposed at a core side and opposed to the movable body, an inclined portion disposed between the movable body and the fixed body, and a rolling member 29 sliding on the inclined portion, and a handle 31 mounted on the movable body and rotatable along the rotating direction of the disc.


Inventors:
KARIYA TOMOKI
MATSUI YUTAKA
ABE TAKASHI
NISHINO YOSHINORI
Application Number:
JP2012266652A
Publication Date:
June 19, 2014
Filing Date:
December 05, 2012
Export Citation:
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Assignee:
HITACHI LTD
HITACHI MITO ENG KK
International Classes:
F16D55/225; B66B5/00; B66B11/08; F16D65/14; F16D65/18
Attorney, Agent or Firm:
Patent Business Corporation Takewa International Patent Office