Manually operable tool for installing blind anchor nuts
US4121444A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 11, 1977 |
| Grant date | Oct 24, 1978 |
| Priority date | — |
| Expiry date | Apr 11, 1997 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25B27/0007
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A manually operable tool for installing blind anchor nuts by pulling an internally threaded part of the nut into a body part of the nut to expand the latter. The tool includes a body member having a bore extending therethrough, an anvil at one end of the bore for engaging the body part of an anchor nut, the anvil surrounding an aperture aligned with the bore, and a grip by means of which an operator can hold the body member to prevent rotation thereof about the bore. A mandrel, which may be changed without the need for external tooling, is positioned in the aperture in the anvil, the mandrel having an externally threaded portion extending outwardly of the anvil and a socket facing into the bore. A shaft is rotatable and reciprocable in the bore of the body member which shaft is provided at one end with a key which fits into the socket on the mandrel in driving engagement therewith, the key being interchangeable without the need for external tooling. The shaft is provided with a handle outside the body member of the tool by means of which the shaft can be both rotated and reciprocated with respect to the body member, the shaft being reciprocable between a first position in which key…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.