Closure fasteners – Clamps – Ring
Patent
1986-03-03
1987-07-07
Moore, Richard E.
Closure fasteners
Clamps
Ring
292DIG38, E05C 1754
Patent
active
046782168
ABSTRACT:
A thermoplastic clamping ring having an U-shaped cross-section, designed for the clamping of covers on barrels, with a clamping lever, pivoted on one end of the thermoplastic clamping ring, and with a clamping link, which is held pivotably on the other end of the thermoplastic clamping ring and is also held pivotably in flanges of the clamping lever. One object of the invention is such a design of the thermoplastic clamping ring that, on the basis of a wall thickness as small as possible and, thus, of a consumption of material as small as possible, the same stiffness can be reached as in the case of a steel clamping ring. As a further object a solid hinge connection free from play, free from rivets, and free from canting, of the clamping lever and of the clamping link with the thermoplastic clamping ring and in regard to one another is intended. Distributed over the circumference, numerous reinforcing ribs, aligned in parallel with the axis of the thermoplastic clamping ring are provided on the outside of the thermoplastic clamping ring and, in addition, ring beads on the borders, into which the reinforcing ribs pass over. On the ends of the thermoplastic clamping ring hook-shaped pivot eyes receive one pivot bolt each, of the clamping link or of the clamping lever, respectively. The clamping link as well as the clamping lever laterally overlap with their flanges the pivot eyes.
REFERENCES:
patent: 1852038 (1932-04-01), Young, Sr.
patent: 2304911 (1942-12-01), Harpold
patent: 2731280 (1956-01-01), Goodliffe et al.
Moore Richard E.
Schemm Theodor
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