Hoist ring with self-lock retaining ring
First Claim
1. A hoist ring for attaching a load to a base comprising:
- a screw adapted to be fastened to the base and having a continuous threaded shank portion,a lower bushing mounted about the screw, the lower bushing provided with a base engaging surface spaced away from the screw and engageable with the base,a body rotatably mounted on the lower bushing,means for connecting the load to the body,a washer being provided below a head of the screw and above the body and lower bushing, said head being located on an end of the screw opposite an end which attaches to the base,self-lock retaining ring means provided around the screw adjacent the lower bushing for engaging threads within the continuous threaded shank portion thereby holding the hoist ring together.
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Accused Products
Abstract
The present invention is a hoist ring provided with a central screw having a screw head at one end and a threaded shank at an opposite end. A washer is provided between the screw head and a lower bushing, with the lower bushing being secured on the screw with a self-lock retaining ring which inserts into a lower recess provided in the lower bushing. The self-lock retaining ring is provided with teeth for gripping the threaded shank. An upward oriented sleeve provided on the lower bushing extends upward to the washer. A body rotatably mounts around the sleeve by means of an axial bore provided in the body. A bail pivotally mounts to the body on an axis transverse to an axis of the lower bushing by means of shoulder pins which insert into horizontal bores of the body and which are secured therein by roll pins. The roll pins insert through vertical bores in the body and through aligned holes in the shoulder pins and are held in place by the washer and lower bushing. The bail is attachable to a load and the threaded shank is attachable to a base.
68 Citations
12 Claims
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1. A hoist ring for attaching a load to a base comprising:
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a screw adapted to be fastened to the base and having a continuous threaded shank portion, a lower bushing mounted about the screw, the lower bushing provided with a base engaging surface spaced away from the screw and engageable with the base, a body rotatably mounted on the lower bushing, means for connecting the load to the body, a washer being provided below a head of the screw and above the body and lower bushing, said head being located on an end of the screw opposite an end which attaches to the base, self-lock retaining ring means provided around the screw adjacent the lower bushing for engaging threads within the continuous threaded shank portion thereby holding the hoist ring together. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A hoist ring for attaching a load to a base comprising:
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a screw adapted to be fastened to the base and having a continuous threaded shank portion, a lower bushing mounted about the screw, the lower bushing being engageable with the base, self-locking retaining ring means provided around the screw adjacent the lower bushing for engaging threads within the continuous threaded shank portion, and a load-attaching means movably secured to the bushing and the screw by means of the self-lock retaining ring means, - View Dependent Claims (9, 10, 11, 12)
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Specification