Footwear outsole

A footwear outsole assembled in a lower surface of uppers of footwear, comprising:

• an outsole body shaped like the sole of a foot, which comprises a front part at which toes are positioned, a central part at which an arch of the foot is positioned, and a rear part at which a heel of the foot is positioned;
• and
• a rear heel assembled to the outsole body so as to move in a front-rear manner on a lower face of the rear part of the outsole body,
• wherein the outsole body comprises the front part at which a lower surface of the front part is in contact with a ground, the central part at which a lower surface of the central part is in contact with the ground, the central part having a first shift groove on the upper surface in the longitudinal direction of the central part, the rear part which is spaced apart from the ground by a predetermined height in order for the lower surface of the rear part not to be in contact with the ground, the rear part having a second shift groove in the lower surface of the rear part, a first screw bar extending through the first shift groove in the central part up to the second shift groove in the rear part, and a second screw bar extending through the second shift groove in the rear part, the second screw bar assembled in order to enclose an outer circumference surface of the first screw bar, and
• wherein the rear heel comprises a rear heel body positioned in the lower surface of the rear part, a second shift supporter upwardly protruding out of an upper surface of the rear heel body, the second shift supporter shiftably inserted in the second shift groove, a second through opening formed in a center of the second shift supporter in a longitudinal direction, and a second bolt supporter formed in an inner circumference surface of the second through opening and shiftably engaged with the second screw bar.

A footwear outsole assembled in a lower surface of uppers of footwear, comprising:

• an outsole body, which comprises a front part at which a lower surface of the front part is in contact with a ground, a central part at which a lower surface of the central part is in contact with the ground, the central part having a first shift groove on an upper surface in the longitudinal direction of the central part, a rear part spaced apart from the ground by a predetermined height in order for the lower surface of the rear part not to be in contact with the ground, the rear part having a second shift groove in the lower surface of the rear part, a first screw bar extending through the first shift groove in the central part up to the second shift groove in the rear part, and a second screw bar extending the second shift groove in the rear part, the second screw bar assembled in order to enclose an outer circumference surface of the first screw bar;
• an arch member shiftably assembled at the central part in a longitudinal direction of the central part, which comprises a convex part and placed on the upper surface of the central part, a first shift supporter downwardly protruding out of a lower surface of the convex part, the first shift supporter shiftably inserted in the first shift groove, a first through opening formed on a center of the first shift supporter in a longitudinal direction, and a first bolt supporter formed in an inner circumference surface of the first through opening and shiftably engaged with the first screw bar;
• and
• a rear heel shiftably assembled at a rear part in a longitudinal direction of the rear part, which comprises a rear heel body positioned in the lower surface of the rear part, a second shift supporter upwardly protruding out of an upper surface of the rear heel body, the second shift supporter shiftably inserted in the second shift groove, a second through opening formed in a center of the second shift supporter in a longitudinal direction, and a second bolt supporter formed in an inner circumference surface of the second through opening, the second bolt supporter shiftably engaged with the second screw bar.