Percussion toggle device of a percussion driller
US7775294B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 23, 2008 |
| Grant date | Aug 17, 2010 |
| Priority date | — |
| Expiry date | Oct 9, 2028 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25D2250/351
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
This invention discloses a percussion toggle device of a percussion driller. It includes bottom ratchet wheel that joggles the top ratchet wheel fixed in the output main shaft of the percussion driller, the locking ring used to lock the rotating direction of bottom ratchet wheel, the ejector rod to eject the locking ring, the slide rod that works with ejector rod to make it rise or fall, the percussion button connecting the slide rod, the positioning device to fixate the position of slide rod, and the reset device that works with the positioning device to remove the position limitation by the positioning device. This invention locks the rotating direction of bottom ratchet wheel through the independent percussion button, slide rod and ejector rod. In this way, the percussion toggle and the adjustment of torque force of the percussion driller can be separated. When using the percussion button, the user can toggle their operation between percussion and torque force. The user can do the toggle operation even when the motor is working. It is convenient, safe and effective.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.