Title:
PARALLEL LINK MECHANISM AND LINK OPERATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/065244
Kind Code:
A1
Abstract:
A parallel link mechanism in which a distal-end member can move over a spherical surface having a predetermined radius from a fixed rotation center comprises a proximal-end-side link hub (1), two link mechanisms (11), rotating bodies (2a, 2b), and a distal-end-side link hub (3). The rotating body (2a) is connected to one of the two link mechanisms (11). The rotating body (2a) is rotatably linked with the proximal-end-side link hub (1). In the link mechanisms (11), first center axes (15a, 15b) of first revolute pairs (25a, 25b) and second center axes (16a, 16b) of second revolute pairs (26a, 26b) intersect at a spherical link center point (30). The rotation center axis (12) of the rotating body (2a) intersects with the spherical link center point (30). The number of rotating bodies (2a, 2b) is less than the number of degrees of freedom of the orientation of the distal-end-side link hub (3).
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Inventors:
MATSUZAWA HIDEKI (JP)
SATOU NAOHIKO (JP)
SATOU NAOHIKO (JP)
Application Number:
PCT/JP2021/034367
Publication Date:
March 31, 2022
Filing Date:
September 17, 2021
Export Citation:
Assignee:
NTN TOYO BEARING CO LTD (JP)
International Classes:
B25J11/00; F16H21/46
Domestic Patent References:
| WO2020075779A1 | 2020-04-16 | |||
| WO2016035564A1 | 2016-03-10 |
Foreign References:
| JP2013529558A | 2013-07-22 | |||
| CN102009414A | 2011-04-13 | |||
| JP2020153494A | 2020-09-24 |
Attorney, Agent or Firm:
FUKAMI PATENT OFFICE, P.C. (JP)
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