Patent · US Expired

Parallel kinematics mechanism with a concentric spherical joint

US7337691B2 · kind B2 · utility

2Cited by
8References
24Claims
0Family size

Inventors

Key dates

Filing dateFeb 27, 2004
Grant dateMar 4, 2008
Priority date
Expiry dateApr 1, 2025

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T74/20335
  • WIPO fieldMachine tools
  • WIPO sectorMechanical engineering

Abstract

A parallel kinematics mechanism is provided for uses such as robotics or machining. The mechanism has various limbs designed as elbow-linkages, at least some of which are actuatable, for moving an end component with multiple degrees of freedom. The mechanism advantageously facilitates an improved workspace-to-footprint ratio and a closed-form solution for the forward kinematics. The mechanism comprises a joint assembly having a plurality of revolute joints for connecting to at least three limbs. In various embodiments of the invention, the end component has three, four, five and six degrees of freedom.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.