Patent · US Expired

Power tool

US5339908A · kind A · utility

72Cited by
5References
15Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJun 25, 1993
Grant dateAug 23, 1994
Priority date
Expiry dateJun 25, 2013

Classification

  • Technology area (CPC F)Mechanical Engineering; Lighting; Heating
  • CPC primaryF16H59/041
  • WIPO fieldMachine tools
  • WIPO sectorMechanical engineering

Abstract

A power tool has a speed reduction gear mechanism including a plurality of stages of planetary gear arrangements, a slide gear member disposed in a tool body to be axially movable therein to change revolution speed of the speed reduction mechanism, and a movable member operatively connected to the slide gear member for moving the same, the movable member having a ring shape and being disposed on an outer side of the slide gear member whereby the slide gear member can be smoothly moved.

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