Multi-articulated link knee joint
AssigneeNabtesco Corporation
InventorMasahiko Okuda
Life of this patent
Estimating the term…
Abstract
A multi-articulated link knee joint includes: a knee unit in which an upper link member is structured to rotate relative to a lower link member by a multi-articulated link mechanism including a plurality of link members including the upper link member and the lower link member; a driven member to move in accordance with the rotation of the upper link member; a position detector for detecting the position of the driven member, the position detector provided at the lower link member; and an angle detector for obtaining the bending angle of the knee unit from the position of the driven member.
Claims5
A multi-articulated link knee joint comprising:
- a knee unit in which an upper link member is structured to rotate relative to a lower link member by a multi-articulated link mechanism including a plurality of link members including the upper link member and the lower link member;
- a driven member structured to move in accordance with rotation of the upper link member;
- a position detector structured to detect a position of the driven member, the position detector provided at one of the plurality of link members;
- an angle detector structured to obtain a bending angle of the knee unit from the position of the driven member;
- and
- a moving mechanism structured to move the driven member in accordance with rotation of the upper link member,
- wherein the driven member includes a protrusion,
- the moving mechanism includes a groove into which the protrusion is fitted, the groove structured to move the driven member in accordance with rotation of the upper link member, and
- the groove has a curved portion.
A multi-articulated link knee joint comprising:
- a knee unit in which an upper link member is structured to rotate relative to a lower link member by a multi-articulated link mechanism including a plurality of link members including the upper link member and the lower link member;
- a driven member structured to move in accordance with rotation of the upper link member;
- a position detector structured to detect a position of the driven member, the position detector provided at one of the plurality of link members;
- an angle detector structured to obtain a bending angle of the knee unit from the position of the driven member;
- and
- a moving mechanism structured to move the driven member in accordance with rotation of the upper link member,
- wherein the driven member includes an abutting member, and
- the moving mechanism includes a groove formed such that a depth thereof varies along an extending direction thereof and an energizing member structured to cause the abutting member to abut against a bottom of the groove.
Dependencies are inferred from the claim text.