Joints and connections – Articulated members – Lockable at fixed position
Patent
1979-09-20
1982-11-23
Kee Chi, James
Joints and connections
Articulated members
Lockable at fixed position
248404, 248412, F16B 710, F16M 1100
Patent
active
043602835
ABSTRACT:
A structural support arrangement in which an inner pipe member is telescopically movable within an outer pipe member. The telescopic members have cross-sections of rectangular and/or square pipes. A self-actuated drive roller is held in elongated holes which are inclined to an axis of the support. The drive roller is knurled or has a roughened surface which abuts against the inner pipe member. The inner pipe member, furthermore, is grasped from behind by a roll bearing member which also serves as a back counter bearing for the drive roller. At least one supporting roller may be arranged with divided parts and extend over the width of the inner pipe member. A traverse member on the outer pipe member is movable about a vertical axis and retains a roller holder which extends between the divided portions of the supporting roller.
REFERENCES:
patent: 1222915 (1917-04-01), Anderson
patent: 1601154 (1926-09-01), Wheeler
patent: 2262325 (1941-11-01), Kenall
patent: 2337796 (1943-12-01), Baker et al.
patent: 3346281 (1967-10-01), Thompson
patent: 3941492 (1976-03-01), Meinunger
patent: 4061300 (1977-12-01), Takahashi
Chi James Kee
Fogiel Max
Ingenium Ingenieurgesellschaft fur Mehrzweckbauten Industrieanla
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