Title:
JOINT FOR TORQUE TRANSMISSION AND ELECTRIC POWER STEERING DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/070485
Kind Code:
A1
Abstract:
The present invention pertains to a joint for torque transmission, which is provided with an intermediate transmission member (19), a first elastic member (20), a second elastic member (21), a first transmission member (17), and a second transmission member (18). In the present invention, particularly, the intermediate transmission member (19) and both the elastic members (20, 21) are engaged with each other by engagement parts (39, 44) provided to respective tooth parts (35, 40) which are provided so as to protrude in the axial direction of the intermediate transmission member (19). Furthermore, in the present invention, uneven sections (22, 26) of the first and second transmission members (17, 18) are engaged with an intermediate uneven section (32) of the intermediate transmission member (19) in a state where a circumferential gap is interposed therebetween, said circumferential gap being larger than each of respective circumferential gaps present between engagement parts between the uneven sections (22, 26) and the elastic members (20, 21). Moreover, in the present invention, the elastic members (20, 21) are engaged with respective inclined engagement surface sections (37, 42) of the intermediate transmission member (19).
Inventors:
OOSAWA RYOU (JP)
SEGAWA TORU (JP)
ISHII TORU (JP)
SEGAWA TORU (JP)
ISHII TORU (JP)
Application Number:
PCT/JP2017/037040
Publication Date:
April 19, 2018
Filing Date:
October 12, 2017
Export Citation:
Assignee:
NSK LTD (JP)
International Classes:
F16D3/74; B62D5/04; F16D3/50; F16D3/78
Domestic Patent References:
| WO2016047188A1 | 2016-03-31 | |||
| WO2016047643A1 | 2016-03-31 |
Foreign References:
| JP2010124621A | 2010-06-03 | |||
| JP2013160241A | 2013-08-19 | |||
| JP2013185667A | 2013-09-19 | |||
| JP2015189288A | 2015-11-02 | |||
| US20030050122A1 | 2003-03-13 | |||
| JP2004306898A | 2004-11-04 | |||
| JP2012131249A | 2012-07-12 | |||
| JP2016201983A | 2016-10-13 |
Other References:
See also references of EP 3453906A4
Attorney, Agent or Firm:
EIKOH PATENT FIRM, P.C. (JP)
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