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US 2022/0166288 A1Published application
Parallel link mechanism and link actuation device
AssigneeNtn Corporation
InventorsKenzou NOSE, Hideki MATSUZAWA
Life of this patent
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Abstract
A parallel link mechanism includes a proximal end-side link hub, three link mechanisms, a rotating body, and a distal end-side link hub. The rotating body is connected to one link mechanism among the three link mechanisms. The rotating body is rotatably coupled to the proximal end-side link hub. In the link mechanism, a first center axis of a first revolute pair portion intersects with a second center axis of a second revolute pair portion at a spherical link center point. The rotation center axis of the rotating body intersects with the spherical link center point.
Claims19
A parallel link mechanism comprising:
- a proximal end-side link hub;
- three or more link mechanisms;
- one or more rotating bodies connected to at least one link mechanism among the three or more link mechanisms;
- and
- a distal end-side link hub, wherein
- the one or more rotating bodies are rotatably coupled to the proximal end-side link hub,
- each of the three or more link mechanisms includes
- a first link member and
- a second link member rotatably connected to the first link member at a first revolute pair portion,
- the second link member is rotatably connected to the distal end-side link hub at a second revolute pair portion,
- the first link member of the at least one link mechanism is fixed to the one or more rotating bodies,
- in the three or more link mechanisms, a first center axis of the first revolute pair portion intersects with a second center axis of the second revolute pair portion at a spherical link center point, and
- a rotation center axis of the one or more rotating bodies intersects with the spherical link center point.
10 more elements
Dependencies are inferred from the claim text.