Ratchet tool control mechanism
US5737982A · kind A · utility
Inventor
Key dates
| Filing date | Oct 7, 1996 |
| Grant date | Apr 14, 1998 |
| Priority date | — |
| Expiry date | Oct 7, 2016 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25G1/066
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A ratchet tool includes a hand grip and a member rotatably coupled together. The member has an interior for receiving a shaft and has a channel for slidably receiving a knob. A barrel is rotatably engaged on the shaft and is slidably engaged in the member for allowing the barrel to be moved axially within the member. The barrel includes a number of ratchet teeth formed in front portion and the rear portion. The knob includes a stud engaged with the barrel for moving the barrel along the shaft. Two followers are engaged on the shaft and rotated in concert with the shaft and each includes a number of ratchet teeth for engaging with the ratchet teeth of the barrel and for allowing the followers to be rotated in an active direction by the barrel. The ratchet teeth are in surface engagement such that the followers may be solidly driven by the ring.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.