Patent ID: 9204686
Filing Date: 2015-12-08
Classification: A43B

Abstract:
1. A shoe sole that comprises: a bent strip spring system, the bent strip spring system includes an elongate bent strip that has a first side, an opposed second side, a first edge and an opposed second edge; an anterior support structure of the bent strip spring system that includes a first anterior bent strip spring and a second anterior bent spring, the first anterior bent spring and second anterior bent spring biased to an initial position, the first anterior bent spring defines a first anterior flexible hinge and the second anterior bent spring defines a second anterior flexible hinge, a first anterior support beam connects the first anterior flexible hinge and the second anterior flexible hinge, a second support beam connects to the second anterior flexible hinge and extends in an anterior direction, the second support beam extends anterior to the first anterior flexible hinge, the second support beam extends from the second anterior flexible hinge defines an arcuate concave shape; a posterior support structure of the bent strip spring system that includes a first posterior bent strip spring and a second posterior bent strip spring, the first posterior bent spring and second posterior bent spring biased to an initial position, the first posterior bent spring defines a first posterior flexible hinge and the second posterior bent spring defines a second posterior flexible hinge, a first posterior support beam connects the first posterior flexible hinge and the second posterior flexible hinge, a second posterior support beam connects to the second posterior flexible hinge; and a first support structure that connects the anterior support structure and the posterior support structure.