Title:
ELEVATOR DEVICE
Document Type and Number:
WIPO Patent Application WO/2017/072824
Kind Code:
A1
Abstract:
Provided is an elevator device comprising a disc brake device
configured so that, without a reduction in the strength of a brake pad, gas and abrasion powder produced near the center of the brake pad can be quickly removed to enable consistent friction characteristics to be achieved.
This elevator device is characterized in that the brake pad (21) of a disc brake device will have formed therein: a single rectilinear groove (33C) passing through substantially the center of the brake pad (21); and two other rectilinear grooves (33A, 33B) formed orthogonal to the single rectilinear groove and arranged at distances from the center so as to face each other across the center, either the single rectilinear groove or the two rectilinear grooves being formed in the contact-sliding direction (12) of the brake pad and the brake disc.
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Inventors:
ABE TAKASHI (JP)
NAKAYAMA MASATO (JP)
SATOU GOROU (JP)
NAKAYAMA MASATO (JP)
SATOU GOROU (JP)
Application Number:
PCT/JP2015/080057
Publication Date:
May 04, 2017
Filing Date:
October 26, 2015
Export Citation:
Assignee:
HITACHI LTD (JP)
International Classes:
B66B11/08; F16D55/06; F16D65/092
Foreign References:
| JP2011126679A | 2011-06-30 | |||
| JP2009274834A | 2009-11-26 | |||
| JPS56138234U | 1981-10-20 | |||
| JPH0326842U | 1991-03-19 | |||
| JPS6237635U | 1987-03-05 | |||
| JP2013112431A | 2013-06-10 | |||
| JP2012188176A | 2012-10-04 |
Other References:
See also references of EP 3369687A1
Attorney, Agent or Firm:
POLAIRE I.P.C. (JP)
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