Secure screw bush type drag-link movable positioning structure

Details Secure screw bush type drag-link movable positioning structure Secure screw bush type drag-link movable positioning structure

1994-02-24

1996-08-06

Dorner, Kenneth J.

Joints and connections

Articulated members

Lockable at fixed position

403377, 403366, 403362, F16B 710

Patent

active

055427731

ABSTRACT:
A secure screw locking structure for a telescoping drag link and fixing rod. When used in a luggage handle, it includes a pair of symmetrical drag links and fixing rods, a loop bar or insert and a setting seat or coupling, a screw block seat or hub and a control screw bush or knob located on each end of a transverse fixing seat or cross bar. The coupling has a setting hole or axial bore and a screw block seat or hub. The axial bore receives the outer end of the fixing rod; the fixing rod receives a hollow loop bar or insert having an integral leaf spring and bore and a limiting ring block or annular flange holding the insert in position in the coupling bore; and the insert receives the drag link. The control knob can be screwed into the thread hole of the hub and a locking block or retaining member forced by a screw block or tab of the knob when screwed in. Then the drag link can be held firmly in place by the spring pushed into engagement by a pin mounted in the knob. The control knob is retained firmly on the hub.

REFERENCES:
patent: 3604734 (1971-09-01), Friedman
patent: 3955828 (1976-05-01), Boudreau
patent: 4140415 (1979-02-01), Koyamato
patent: 4587864 (1986-05-01), Kassai
patent: 4818135 (1989-04-01), Desjardins
patent: 4896897 (1990-01-01), Wilhelm
patent: 4950003 (1990-08-01), Holtz
patent: 5257800 (1993-11-01), Yang

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