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US 4,494,323 AGranted
Detachable shoe heel
OwnerWendy R. Latraverseinventor
Life of this patent
Estimating the term…
Abstract
Shoe comprising an upper portion, a sole attached to the upper portion, a detachable heel engagable with the lower surface of the sole and having a keyway extending downwardly from the upper surface of the heel, and a retainer key mounted in the sole and adapted to extend into the keyway when the heel is applied to the sole for releasably locking the heel to the sole.
Claims6
Shoe comprising:
- (a) an upper portion,
- (b) a sole attached to the upper portion, said sole having a heel portion which has a lower surface and an upper surface which is provided with a circular recess,
- (c) a detachable heel having an upper surface for closely engaging said lower surface, said heel having a keyway which extends downwardly from the upper surface, and
- (d) a retainer key mounted in the sole for rotation about a vertical axis and which is adapted to extend freely into the keyway when said upper and lower surfaces are properly engaged, said retainer key being complementary with said keyway so that rotation of the key about said vertical axis releasably locks the heel to the sole, said key having a head portion which is located in the recess so that it is below said upper surface, said head being elongated in the horizontal plane which enables the head to be grasped by the user's fingers within the recess for rotating the key about said vertical axis.
1 more element
Shoe comprising:
- (a) an upper portion,
- (b) a sole attached to the upper portion, said sole having a heel portion which has a lower surface,
- (c) a detachable heel having an upper surface for closely engaging said lower surface, said heel having a keyway which extends downwardly from the upper surface, said keyway having a vertical groove and a horizontal groove which extends from the vertical groove along an arc which is generated about a vertical axis, said arc having a helical lead, and
- (d) a retainer key mounted in the sole for rotation about said vertical axis and which is adapted to extend freely into the keyway when said upper and lower surfaces are properly engaged, said retainer key having a shank portion and a projecting portion which extends laterally from the shank portion, said key being rotatable about said vertical axis between a first position and a second position so that the key is freely insertable into the vertical groove in said first position and the projecting portion is insertable into the horizontal groove upon rotation of the key within said vertical groove from said first position to said second position, and rotation of the key from said first position to said second position causes the heel and sole to be drawn tightly together by the key.
1 more element
Dependencies are inferred from the claim text.