Supporting arm

Details Supporting arm Supporting arm

1989-12-26

1991-04-02

Ramirez, Ramon O.

Supports

Brackets

Adjustable

384 53, 403109, E04G 300

Patent

active

050042033

ABSTRACT:
A supporting arm consists of telescoping sections (1-4, 17-19) which are mutually supported by roller bearings such as needle bearings (8) or ball bearings (25). The cross sectional shape of the sections (1-4, 17-19) is polygonal, so as to provide a high bending and torsional stiffness. By providing grooves in the supporting faces (10, 23, 24) of the sections, the strength characteristics as well as the behavior during telescoping under high loads may be enhanced.

REFERENCES:
patent: 2881031 (1959-04-01), Comfort
patent: 3118066 (1964-01-01), Thomas et al.
patent: 3244883 (1966-04-01), Labus et al.
patent: 3519291 (1970-07-01), Scott
patent: 3887155 (1975-06-01), Bertalot
patent: 3887247 (1975-06-01), Graae et al.
patent: 4239169 (1980-12-01), DeSantis
patent: 4376397 (1983-03-01), Newby et al.
patent: 4555148 (1985-11-01), de Willigen et al.
"Tragfahigkeit von Teleskopen", Fordern und Haben, vol. 22, No. 3, 1972, by W. Huber, pp. 125-127.

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