Safety structure used in the anti-auto-firing device of electric nail guns
US11618146B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 21, 2020 |
| Grant date | Apr 4, 2023 |
| Priority date | — |
| Expiry date | Apr 7, 2041 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25C1/008
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A safety structure used in the anti-auto-firing device of electric nail guns, including a base cover and an anti-auto-firing device. The anti-auto-firing device comprises a safety rack, an adjusting-connecting device, an on-off lever, an inching switch and a return spring. A safety device is fitted over the on-off lever. The safety device comprises a retaining ring, a bearing elastic piece and a locating spacer. A support plate is disposed in the base cover. The support plate is provided with a lever slot, the retaining ring is fixed to the on-off lever. Both ends of bearing elastic piece prop the retaining ring and locating spacer respectively. The locating spacer props the side of support plate. The bearing elastic piece has elastic force keeping the end of on-off lever away from the inching switch.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.