Support frame
US4574552A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 21, 1982 |
| Grant date | Mar 11, 1986 |
| Priority date | — |
| Expiry date | Sep 21, 2002 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T403/557
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
Cross-beams, located between column elements of the support frame, contain, at their beam-ends, clamping members which are mounted inside a cavity in the cross-beam body in a manner permitting displacement in the longitudinal direction of the cross-beam, and are capable of being brought into, and out of, engagement with the column elements. These clamping members are expanding elements, coupled together and guided so that they move in pairs, their head part, which engages into the column element, being provided with clamping means and centering means, and being capable of being pushed completely back into the cross-beam cavity. The expanding elements can be forced apart from each other, in a parallel relationship, perpendicularly to the longitudinal axis of the cross-beam, by means of a socket-head screw which can be operated from the outside of the cross-beam. The design of the clamping members on the cross-beams permits the installation of cross-beams between columns which are already fixed, without dismantling any part whatsoever.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.