Title:
UNIVERSAL JOINT
Document Type and Number:
WIPO Patent Application WO/2024/018529
Kind Code:
A1
Abstract:
A universal joint 10 comprises: a cross shaft 11 which has a trunnion 11a; a bearing cup 12 which supports the trunnion 11a via plurality of rollers 15; a yoke 13 to which the bearing cup 12 is attached; a fastening member 14 which fixes the bearing cup 12 to the yoke 13; and a pressure sensor 40. The bearing cup 12 has: a first surface 20 which includes a first contact surface 22 that contacts the yoke 13 and a key 24 which protrudes with respect to the first contact surface 22; and a through hole 25 which is open in the first contact surface 22 and through which the fastening member 14 passes. The yoke 13 has: a second surface 26 which includes a second contact surface 30 that contacts the first contact surface 22 and a key groove 23 that is recessed with respect to the second contact surface 30 and that fits with the key 24; a fastening hole 28 which is open in the second contact surface 30 and in which the fastening member 14 is fastened; and a liquid pressure chamber 42 inside which a liquid L is filled. The pressure sensor 40 measures the pressure of the liquid L. At least part of the liquid pressure chamber 42 is positioned between the key groove 23 and the fastening hole 28.
Inventors:
YOSHIDA SATOSHI (JP)
Application Number:
PCT/JP2022/028067
Publication Date:
January 25, 2024
Filing Date:
July 19, 2022
Export Citation:
Assignee:
JTEKT CORP (JP)
International Classes:
F16D3/38; G01L3/20
Foreign References:
| JP2006022866A | 2006-01-26 | |||
| JP2006077873A | 2006-03-23 | |||
| JPS4826786Y1 | 1973-08-06 | |||
| JPS5872018A | 1983-04-28 |
Attorney, Agent or Firm:
SUNCREST PATENT AND TRADEMARK ATTORNEYS (JP)
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