US 4,590,642 AGranted

Pivotal hinge for an arm of an awning

AssigneePaul Voss GmbH u. Co.

InventorKarl Hesener

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Abstract

A pivotal hinge for an arm of an awning, wherein a supporting block is tightly clamped on a rectangular supporting tube and carries a pivotal bracket swingable and lockable about an axle disposed in parallel with the supporting tube. The pivotal hinge is adjustable in a simple manner by a readily available tool and has high stability, particularly rigidity against torsion. The supporting block is defined by a yoke including two legs joined by a central web, one leg being defined by two parallel webs and a cross web connecting same. A supporting trunnion is carried within a pair of eyes formed in spaced projections extending beyond the central web for pivotally supporting the pivotal bracket. A threaded sleeve is rotatably supported in a guide passage provided in the cross web, with a threaded bolt being engaged through the threaded sleeve and having one end pivotally connected to the pivotal bracket.

Claims5

Dependent claims

A pivotal hinge for an arm of an awning of the type wherein a supporting block is tightly clamped onto a rectangular supporting tube and carries a pivotal bracket that is swingable and lockable about an axle disposed in parallel with the supporting tube, said hinge comprises:

(a) the supporting block being in the configuration of a yoke including two legs joined by a central web, with one leg being defined by a pair of parallel webs;
(b) a cross web connecting the parallel webs, the cross web including a semicylindrical groove formed between a pair of front surfaces, and a guide passage;
(c) a pair of projections extending beyond the central web, with a pair of spaced eyes formed in the projections;
(d) said axle being a supporting trunnion disposed in the pair of eyes;
(e) said pivotal bracket supported on the supporting trunnion;
(f) a threaded sleeve rotatably supported in the semicylindrical groove, the sleeve including a pair of spaced flanges which abut the front surfaces of the groove;
(g) a helical spring tensioning one flange of the threaded sleeve against its corresponding front surface;
and
(h) a threaded bolt engaged through the threaded sleeve and guide passage, the bolt including one end pivotally connected to the pivotal bracket.

6 more elements

Dependencies are inferred from the claim text.