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US 6,662,409 B2Granted
Shortening hook for strands of round link chain
AssigneeJ.D. Theile GmbH & Co. KG
InventorRainer Benecke
Life of this patent
Estimating the term…
Abstract
A shortening hook for strands of round link chain. A safety body is arranged in the mouth of the hook. The safety body is moveable by hand against the tension of a reset spring from the area of the mouth of the hook transversely to the trajectory motion of the hook. An operating link projects into the mouth of the hook and is arranged at the end section of the safety body. This operating link can be pressed back when the hook shaft takes hold so that the safety body frees up the mouth area.
Claims5
A shortening hook for strands of round link chain comprising:
- a hook mouth where the link chain enters to engage the shortening hook;
- a hook shaft disposed at a top of the shortening hook above said book mouth;
- a safety body moveably disposed in said hook shaft with a section of said safety body protruding into said hook mouth;
- an operating link disposed at a section of said safety body that protrudes into said hook mouth;
- and
- a reset spring disposed within said hook shaft against an end of said safety body opposite said hook mouth;
- wherein said section of said safety body partially blocks said hook mouth preventing unwanted detachment of the link chain from the shortening hook;
- and
- wherein said safety body moves transversely to the trajectory motion of the shortening hook, when pushed against the tension of said reset spring for detachment of the link chain from the shortening hook.
6 more elements
Dependencies are inferred from the claim text.