Panel fastener
US4609314A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 21, 1984 |
| Grant date | Sep 2, 1986 |
| Priority date | — |
| Expiry date | May 21, 2004 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16B39/22
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A screw-type fastener comprising two cooperable assemblages for releasably securing a panel having one of said assemblages to an underlying support structure such as a sub-panel or other framework having the other assemblage. The said other assemblage of the fastener comprises a tubular housing enclosing a screw member which projects forwardly to an open end of the housing, toward the opening thereof. The said one fastener assemblage comprises a floating stud body carried by the panel and having an internally threaded bore which is adapted to receive the screw member when the stud body is applied thereto. The housing has ratchet disks encircling the screw member, provided with opposed faces containing radial teeth which engage one another. One disk is keyed to rotate with the stud body, and the other is keyed for longitudinal non-rotary movement in the housing. A spring in the housing maintains the disks in contact. The screw member is mounted for floating, turning movement in the housing, and is yieldably restrained by a detent as the stud body advances on the screw until a predetermined torque is reached. Thereafter the detent yields in the manner of a ratchet or overload clutch …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.