Title:
ELECTRIC BRAKE APPARATUS AND DRIVING UNIT
Document Type and Number:
WIPO Patent Application WO/2023/074127
Kind Code:
A1
Abstract:
Provided is an electric brake apparatus, namely a disc brake, comprising: an electric motor; a spindle driven to rotate by the electric motor; a nut member that moves linearly in the axial direction of a disc rotor as the spindle rotates, and moves inner and outer brake pads; an engaging rotation member that engages with the spindle when the nut member has advanced in the axial direction; and a torsion spring in which elastic energy is stored due to the co-rotation of the spindle and the engaging rotation member while the spindle and the engaging rotation member are engaged. This arrangement allows for reduced bulk.
Inventors:
YOSHIZU RIKIYA (JP)
SAKIMOTO KOICHI (JP)
SAKIMOTO KOICHI (JP)
Application Number:
PCT/JP2022/033353
Publication Date:
May 04, 2023
Filing Date:
September 06, 2022
Export Citation:
Assignee:
HITACHI ASTEMO LTD (JP)
International Classes:
B60T17/18; B60T13/74; F16D55/225; F16D65/18; F16D65/56; F16D121/24; F16D125/40
Foreign References:
| JP2021004646A | 2021-01-14 | |||
| JP2012026461A | 2012-02-09 | |||
| JP2017125534A | 2017-07-20 | |||
| JP2017061203A | 2017-03-30 |
Attorney, Agent or Firm:
YAMAMOTO, Osamu et al. (JP)
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