Footwear sole
AssigneeZ-Coil
InventorEun Jae Lee
Life of this patent
Estimating the term…
Abstract
Disclosed herein is a footwear sole. The footwear sole includes a coupling seat, a connector and a locking pin. The coupling seat protrudes from the lower surface of a rear midsole, and includes a through hole in a central portion thereof, a locking recess formed around the through hole, and at least four pin slits formed at regular intervals. The connector is coupled to the top of the coil spring, and includes a locking protrusion corresponding to the locking recess, an internal threaded part, and a spring seat provided along an edge of an upper surface of the connector. The locking pin is provided at an end of the top of the spring, and protrudes to be fitted into an associated pin slit.
Claims6
A footwear sole having a soft front midsole, a front outsole provided on a lower surface of the front midsole, a hard rear midsole coupled to the front midsole, and an auxiliary sole provided on a lower surface of the rear midsole and having a coil spring coupled to a rear outsole contacting a ground, the footwear sole comprising:
- a coupling seat protruding from the lower surface of the rear midsole, and comprising:
- a through hole formed in a central portion of the coupling seat in such a way as to pass through in a vertical direction;
- a locking recess formed around the through hole;
- and
- at least four pin slits formed independently from the locking recess at regular intervals;
- a connector coupled to a top of the coil spring, and comprising:
- a locking protrusion corresponding to the locking recess;
- an internal threaded part provided on a central portion of the connector;
- and
- a spring seat provided along an edge of an upper surface of the connector, and bonded with the coil spring using an adhesive;
- and
- a locking pin provided at an end of the top of the spring and protruding to be fitted into an associated pin slit.
Dependencies are inferred from the claim text.