Safety hook
AssigneeYoshida Kogyo K.K.
InventorTomohiro Mori
Life of this patent
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Abstract
A safety hook includes a generally R-shaped latch member pivotally mounted on a hook member for opening and closing a mouth of the hook member. The R-shaped latch member includes a ring-shaped head having a pair of spaced resilient support lugs on which pivot pins are formed. The head of the latch member is movably received in a recess in the hook member and the pivot pins are snap-fitted in opening in the hook member. The safety hook can be easily assembled only by forcing the latch member into the recess in the hook member. Once the hook member and the latch member are assembled, they are retained in assembled condition against detachment even when a severe thrusting force is applied onto the locking arm of the latch member.
Claims7
A safety hook comprising:
- (a) a hook member having an enlarged head and a hook integral with and extending from said head so as to define therebetween a mouth, said enlarged head having a recess opening to said mouth and a pair of aligned holes communicating with said recess;
- and
- (b) a generally R-shaped latch member pivotally mounted on said hook member and including a rounded head movably received in said recess, a locking arm and a resilient arm which are integral with and extend outwardly from one side of said head in diverging fashion, said resilient arm acting on said hook member to urge said latch member in a closing position in which said locking arm closes said mouth, said head including a pair of spaced resilient support lugs and a pair of aligned pivot pins integral with the respective support lugs, said pivot pins extending outwardly away from one another and being rotatably received in said holes, respectively.
Dependencies are inferred from the claim text.