Title:
ROTATION TRANSMISSION DEVICE
Document Type and Number:
WIPO Patent Application WO/2014/207953
Kind Code:
A1
Abstract:
A rotation transmission device having a high torque measurement resolution is provided. The rotation transmission device is provided with: a rotary shaft unit (6) having a first and second rotary shaft (13, 14) combined so as to be coaxial and such that the end portions thereof can rotate relative to each other and a torsion bar (15) that is disposed on the inner diameter side of the first and second rotary shafts so as to be coaxial therewith, has one end connected to the first rotary shaft (13), and has another end connected to the second rotary shaft (14); a first gear (7) fixed to the outer peripheral surface of the first rotary shaft (13); a second gear (8) fixed to the outer peripheral surface of the second rotary shaft (14); a coupling shaft (9) disposed on the inner diameter side of the torsion bar (15) so as to be coaxial therewith, having one end connected to one rotary shaft (13), and having another end protruding from an end of the torsion bar (15) in the axial direction; a first encoder disposed and fixed on the other end of the coupling shaft (9) so as to be coaxial with the first rotary shaft (13) and having a first part to be detected (39); a second encoder fixed on the other end of the second rotary shaft (14) so as to be proximate to the first encoder and having a second part to be detected (40); and a sensor unit having at least one sensor (42a, 42b) opposing the first and second parts to be detected (39, 40).
Inventors:
MATSUDA YASUYUKI (JP)
GUNJI DAISUKE (JP)
HIKIDA MASAFUMI (JP)
TANAKA KAZUTAKA (JP)
UEDA TOORU (JP)
TAKEHARA TETSU (JP)
SAITO TOMOHARU (JP)
YOSHIOKA HIROYASU (JP)
KANEKO YUKA (JP)
GUNJI DAISUKE (JP)
HIKIDA MASAFUMI (JP)
TANAKA KAZUTAKA (JP)
UEDA TOORU (JP)
TAKEHARA TETSU (JP)
SAITO TOMOHARU (JP)
YOSHIOKA HIROYASU (JP)
KANEKO YUKA (JP)
Application Number:
PCT/JP2013/080358
Publication Date:
December 31, 2014
Filing Date:
November 08, 2013
Export Citation:
Assignee:
NSK LTD (JP)
International Classes:
G01L3/10; F16C19/00; F16C41/00; F16H55/17
Domestic Patent References:
| WO2004071686A1 | 2004-08-26 |
Foreign References:
| US4150566A | 1979-04-24 | |||
| JP2013088181A | 2013-05-13 | |||
| JPH01220762A | 1989-09-04 | |||
| JPS6336124A | 1988-02-16 | |||
| JPH0399240A | 1991-04-24 | |||
| JP2010185478A | 2010-08-26 |
Other References:
See also references of EP 3015836A4
Attorney, Agent or Firm:
Kiwa International (JP)
Patent business corporation Takakazu patent firm (JP)
Patent business corporation Takakazu patent firm (JP)
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