Title:
JOINT MECHANISM, PARALLEL LINK MECHANISM, AND LINK ACTUATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/032916
Kind Code:
A1
Abstract:
Provided is a parallel link mechanism comprising a bearing (23) in each of revolute pair parts including revolute pair parts each between a link hub (12) on a base end side and an end portion link member (15) on the base end side, revolute pair parts each between each of end portion link members on the base end side and a distal end side and a center link member (17), and revolute pair parts each between a link hub on the distal end side and the end portion link member on the distal end side. The bearing (23) is a grease-sealed bearing provided with a grease composition sealed into a bearing space between inner and outer rings. The grease composition contains a base oil and a thickener and has a worked penetration of 310 or more. The thickener is a calcium sulfonate complex soap or a lithium soap.
Inventors:
ISOBE HIROSHI (JP)
GOTO TOMOAKI (JP)
WATANABE KOTA (JP)
TANAKA HIDEAKI (JP)
GOTO TOMOAKI (JP)
WATANABE KOTA (JP)
TANAKA HIDEAKI (JP)
Application Number:
PCT/JP2022/032407
Publication Date:
March 09, 2023
Filing Date:
August 29, 2022
Export Citation:
Assignee:
NTN TOYO BEARING CO LTD (JP)
International Classes:
F16H21/46; B25J11/00; F16C19/16
Domestic Patent References:
| WO2012141222A1 | 2012-10-18 | |||
| WO2014077090A1 | 2014-05-22 |
Foreign References:
| JP2014005926A | 2014-01-16 | |||
| JP2018168877A | 2018-11-01 | |||
| JP2013121652A | 2013-06-20 |
Attorney, Agent or Firm:
SUGIMOTO, Shuji et al. (JP)
Download PDF:
Previous Patent: MULTILAYER BODY
Next Patent: HYDROCHLORIC ACID OXIDATION CATALYST AND METHOD FOR PRODUCING CHLORINE
Next Patent: HYDROCHLORIC ACID OXIDATION CATALYST AND METHOD FOR PRODUCING CHLORINE