Hook device
A hook device includes a case member for supporting a hook main portion to be rotatable between a store position and a use position; a stopping portion attached to the case member for regulating the hook main portion at the use position with a predetermined opening angle; and an engaging portion provided to the hook main portion through an elastic member for engaging the stopping portion. The elastic member elastically deforms in a direction that the stopping portion engages the engaging portion when a load is applied to the hook main portion in a direction that the hook main portion opens.
1. A hook device for suspending an object, comprising:
a case member having a stopping portion located at a rear side of the case member,
a hook main portion disposed in the case member to be rotatable between a store position and a use position, and having an upper portion, a lower portion rotationally attached to the case member, and an elastic member projecting rearwardly and upwardly from the lower portion to the upper portion, and
an engaging portion provided at the elastic member of the hook main portion to engage the stopping portion so that the hook main portion is stopped at the use position with a predetermined open angle, at least one of said stopping portion and said engaging portion having an inclined surface so that when a load is applied to the hook main portion in the use position in a direction such that the hook main portion further opens, the elastic member is urged in a direction that the stopping portion further engages the engaging portion to thereby prevent further opening of the hook main portion.
2. The hook device as claimed in claim 1 , further comprising urging means attached to the case member for urging the hook main portion in a direction that the hook main portion opens, and a latch mechanism for holding the hook main portion at a predetermined store position against an urging force of the urging means.
3. The hook device as claimed in claim 1 , wherein said hook main portion has a space between the bottom portion and the elastic member so that the elastic member is deformable toward the bottom portion.
4. The hook device as claimed in claim 1 , wherein said engaging portion has an inwardly inclined surface relative to a radial line extending from a rotational axis of the hook main portion so that a rotational force of the hook main portion beyond the use portion is converted to a force for deforming the hook main portion outwardly.
5. The hook device as claimed in claim 4 , wherein said stopping portion and said engaging portions have similar inwardly inclined surfaces.
6. The hook device as claimed in claim 4 , wherein said hook main portion includes a hook portion at a rear side of the upper portion.