Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Threaded fastener locked to a discreet structure – Nut – and means to engage substructure on its opposite faces...
Patent
1991-10-30
1992-08-04
Wilson, Neill R.
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Threaded fastener locked to a discreet structure
Nut, and means to engage substructure on its opposite faces...
411 55, 411508, 411913, 4034061, 4034081, F16B 1900, F16B 3704
Patent
active
051353415
ABSTRACT:
On the rear side of the front panel (1) of an electronic equipment, at each lateral end which overlaps an edge of an aperture (3) into which the electronic equipment is being inserted, bushings (5) having rearwardly extending catch members (6) are fastened to the rear of the front panel by screws (12). The bushings are of resilient synthetic plastic. The catch members are disposed around a continuation of the central bore of the bushing. Stepped bores (14) are provided in the wall portion overlapped by the front panel. When the bushings are inserted into these stepped bores the catch members are first deflected inwards and then, as they reach their final position, spring outwards and catch against the step (16) of the bore (14). Mating projections (9) and openings (10) lock each bushing against rotation as it is screwed on to the front panel (1). Between the catch prongs there are sector cavities (13) for accepting a mating projection in the bore through the wall (2), so as to hold the bushing against rotation when the front panel is removed for repair or replacement after releasing the screws (12). As a result the bushings will be in correct position or refastening the front panel.
REFERENCES:
patent: 1978935 (1934-10-01), Douglas
patent: 4449877 (1984-05-01), Kessler
patent: 4760495 (1988-07-01), Till
patent: 4906152 (1990-03-01), Kurihara
patent: 5065490 (1991-11-01), Wivagg et al.
Blaupunkt-Werke GmbH
Wilson Neill R.
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