Knockdown hand tool structure
US6363819B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 13, 2000 |
| Grant date | Apr 2, 2002 |
| Priority date | — |
| Expiry date | Sep 13, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25B23/0042
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A knockdown hand tool structure. The structure includes a grip, a screwdriver stem, a fitting post and a socket. A front end of an elongated stem of the grip is formed with a central hexagonal fitting hole with a certain depth. A stop sleeve is fitted on the front end of the elongated stem. A steel ball and a compression spring are received in the stop sleeve. The screwdriver stem is a hexagonal stem body. Two ends of the screwdriver stem are respectively equipped with different specifications or patterns of screwdriver heads. Certain portions of the body of the screwdriver stem are formed with annular engaging grooves with V-shaped cross-section and a certain depth at equal intervals. The fitting post is a short cylindrical body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.