Title:
PULLEY STRUCTURE
Document Type and Number:
WIPO Patent Application WO/2018/194075
Kind Code:
A1
Abstract:
The present invention relates to a pulley structure (1) equipped with an outer rotating body (2), an inner rotating body (3), and a coil spring (4) provided between the outer rotating body (2) and the inner rotating body (3). The coil spring (4) is configured so as to undergo torsional deformation in a diameter-expanding or a diameter-contracting direction, thereby engaging the outer rotating body (2) and the inner rotating body (3) and transmitting torque, and to undergo torsional deformation in the direction opposite the direction in which torque is transmitted, thereby entering a disengaged state in which the coil spring slides with the outer rotating body (2) or the inner rotating body (3), thus interrupting the transmission of torque. The number of windings of the coil spring (4) is in a range between [M – 0.125] and M (both inclusive), where M is a natural number.
Inventors:
SHIMAMURA HAYATO (JP)
IMAI KATSUYA (JP)
DAN RYOSUKE (JP)
MORIMOTO TAKASHI (JP)
IMAI KATSUYA (JP)
DAN RYOSUKE (JP)
MORIMOTO TAKASHI (JP)
Application Number:
PCT/JP2018/015921
Publication Date:
October 25, 2018
Filing Date:
April 17, 2018
Export Citation:
Assignee:
MITSUBOSHI BELTING LTD (JP)
International Classes:
F16H55/36; F16D41/20; F16F1/06
Foreign References:
| JP2014114947A | 2014-06-26 | |||
| JP2014114947A | 2014-06-26 | |||
| JP2017082495A | 2017-05-18 | |||
| JP2018070956A | 2018-05-10 |
Other References:
See also references of EP 3614021A4
Attorney, Agent or Firm:
EIKOH PATENT FIRM, P.C. (JP)
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