Telescopic tube and method for the manufacture thereof

Details Telescopic tube and method for the manufacture thereof Telescopic tube and method for the manufacture thereof

1982-02-09

1984-12-25

Kundrat, Andrew V.

Joints and connections

Articulated members

Lockable at fixed position

403334, 156173, F16B 710

Patent

active

044900635

ABSTRACT:
A telescopic tube, comprising a plurality of relatively sliding tube members (10, 11) fitted within each other. Along a major part (L.sub.0) of their length, the tube members are straight cylindrical tubes whose ends are provided with conical bulges (14, 15), so that one end is provided with an external cone (14) which diverges towards the end and the other end is provided with an internal cone (15) which converges towards the end. The latter end is surrounded by an external annular flange (16). The external and internal conical bulges (14) and (15) of individual tube members (10) and (11) are wedged against each other with friction engagement and keep the telescopic tube in the extended condition.

REFERENCES:
patent: 2541609 (1951-02-01), Pullan
patent: 2757002 (1956-07-01), Ryden
patent: 2787484 (1957-04-01), Macy

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