Telescoping tubes with a twist locking arrangement

Details Telescoping tubes with a twist locking arrangement Telescoping tubes with a twist locking arrangement

1980-08-21

1982-05-11

Shedd, Wayne L.

Joints and connections

Articulated members

Lockable at fixed position

403343, F16B 710

Patent

active

043290760

ABSTRACT:
A locking arrangement for telescoping tubes including an outer elongated tube with a radially inwardly projecting lock seam longitudinally extending along the length of the tube, and an inner elongated tube telescopically being received within the outer tube. The inner tube includes at least one integral radially outwardly extending projection formed as a deformation of the wall of the inner tube. The projection is such as to be able to be arranged in a clearance fit relationship so as to permit axial sliding of the tubes relative to each other, and upon relative rotation of the tubes, to adjust the projection in an interference fit whereby the inner tube becomes eccentric with the outer tube and is jammed in a locked position within the outer tube.

REFERENCES:
patent: 958752 (1910-05-01), Mackensen
patent: 982836 (1911-01-01), HiPiLey et al.
patent: 2289818 (1942-07-01), Winner et al.
patent: 2537284 (1951-01-01), Schuder
patent: 2685460 (1954-08-01), Ogborn et al.
patent: 2851288 (1958-09-01), Kinkead
patent: 2949692 (1960-08-01), Kuhn
patent: 3413021 (1968-11-01), Potts
patent: 4076437 (1978-02-01), Mazzolla

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