Title:
SCREW NUT OR SPLINE NUT
Document Type and Number:
WIPO Patent Application WO/2019/087794
Kind Code:
A1
Abstract:
Provided is a screw nut for reducing the size and weight of a screw nut to which a pulley is attached. This screw nut (2) is provided with: an outer ring (21); and a nut (23) rotatably attached to the outer ring (21) through a first rolling body. The nut (23) includes: a nut body (24) having a screw groove in the inner surface thereof; and a circulation component (25a) which is provided on an axial end section of the nut body (24) and has a direction converting path for circulating a second rolling body rolling along the screw groove. A pulley (41) attached to the nut (23) is fitted to the outer surface (24d) of the nut body (24d), and brought into contact with the axial end surface (26a1) of the nut (23). The pulley (41) is attached to the end surface (26a1) of the nut (23) by means of a fastening member (42).
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Inventors:
AMEMIYA YOHEI (JP)
Application Number:
PCT/JP2018/038798
Publication Date:
May 09, 2019
Filing Date:
October 18, 2018
Export Citation:
Assignee:
THK CO LTD (JP)
International Classes:
F16H25/22; F16D3/06; F16H25/20; F16H25/24
Foreign References:
| JPH01229160A | 1989-09-12 | |||
| JP2003340869A | 2003-12-02 |
Attorney, Agent or Firm:
SHIOJIMA, Toshiyuki (JP)
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