Patent · US Expired

Robot joint

US4738576A · kind A · utility

18Cited by
6References
5Claims
0Family size

Assignee

Inventors

Key dates

Filing dateApr 3, 1986
Grant dateApr 19, 1988
Priority date
Expiry dateApr 3, 2006

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB25J9/102
  • WIPO fieldHandling
  • WIPO sectorMechanical engineering

Abstract

A robot joint includes an electric drive motor and step-down transmission ilt into the robot joint housing. The output of the transmission drives a gear to which a mounting flange is coupled. A first part of the robot is coupled to the housing and a second robot part is coupled to the mounting flange. The mounting flange is supported axially and radially in the housing by bearings. The bearings preferably include a conical-roller bearing for providing radial and axial support and a needle bearing for providing axial support. Both bearings are maintained under pretension by a spring, thereby providing a robot joint which is free of play.

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