Means for assembling tubular scaffolding elements
US4530616A · kind A · utility
Inventor
Key dates
| Filing date | Mar 2, 1984 |
| Grant date | Jul 23, 1985 |
| Priority date | — |
| Expiry date | Mar 2, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T403/30
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Means for assembling tubular scaffolding elements comprising an annulus (31) having radial arms (33) and being fixed on a vertical tubular element (32), a bracket or cap (34) engaged on a radial arm and locked by means of a key (35). Annulus (31) is shaped like a star and each radial arm (33) comprises a V-shaped radial clearance (36) and bosses (37,38,39), the sides of which are designed as steps to support the front end of the bracket or cap and are joined to the corresponding radial tubular element (42). The support steps are provided on the upper and lower sides (43,44) of each arm and are of a width and thickness to provide substantial seating to the end of the bracket and directional stability to the radial tubular element both in a vertical and a horizontal plane during the assembly keying operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.