Closure fasteners – Bolts – Swinging and camming
Patent
1988-05-23
1989-11-07
Smith, Gary L.
Closure fasteners
Bolts
Swinging and camming
52291, 292204, 292257, E05C 304
Patent
active
048787000
ABSTRACT:
A stiffening device for an electronics cabinet has at least two angle struts that are each formed by profile bars. The profile bars enclose an obtuse angle between them and are pivoted in the upper and lower corner regions of the cabinet frame rack. The angle struts are coupled to each other in a frictional, form-locking manner at their vertices by a tightening assembly when in a closed position. A formed fit over a large area is obtained when tightening the angle struts by attaching the profile bars of each angle strut to a door. The pivots of each angle strut are used for the pivots of the corresponding door. The tightening assembly includes a hole of radius R.sub.1 arranged at the vertex of one angle strut and a hole of radius R.sub.2 arranged at the vertex of the other angle strut. The hole dimensions are such that R.sub.2 is greater than R.sub.1. A tightening latch is arranged in both holes. The tightening latch has a first disc of radius R.sub.1 pivoted in the corresponding hole of radius R.sub.1. A second disc protrudes, in the closed door position, into the hole with the radius R.sub.2. The second disc has two circular sectors, of which one has the radius R.sub.2 and the other, the radius R.sub.3. Rotation of the tightening latch causes the angle struts to tighten against each other.
REFERENCES:
patent: 2722721 (1955-11-01), Carlow
patent: 3479076 (1969-11-01), Schallenn
patent: 3715531 (1973-02-01), Keeley
patent: 4288116 (1981-09-01), Schlienger
patent: 4813726 (1989-03-01), Ravinet
Nicholson Eric K.
Siemens Aktiengesellschtaft
Smith Gary L.
LandOfFree
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