A force dissipating device in a footwear appliance includes an actuator responsive to a displacement force from a shoe sole surface, and an elastic field of resilient, compressible material. The elastic field is elongated in a direction aligned with the displacement force, and an inclined surface is attached to the actuator and disposed against the elastic field. The actuator is adapted for movement parallel to the elastic field, while the inclined surface is oriented to compress the elastic field in a direction defined by the inclined surface. The inclined surface is oriented at an angle to compress the elastic field in a direction substantially perpendicular to vertical actuator displacement, thus providing a constant region of opposed, compressive force that is generally constant, rather than increasing with displacement distance.

An electronically controlled bladder assembly includes an adjustable pressure bladder and a constant pressure reservoir connected by an electronically controlled valve. The electronically controlled valve is operated in a manner that inflates the adjustable bladder when the current pressure is below a target pressure and in a manner that deflates the adjustable bladder when the current pressure is above the target pressure. The inflation and deflation of the adjustable bladder are achieved in an iterative manner by controlling the flow of fluid between the constant pressure reservoir and the adjustable bladder over several cycles of heel strikes.

An electronically controlled bladder assembly includes an adjustable pressure bladder and a constant pressure reservoir connected by an electronically controlled valve. The electronically controlled valve is operated in a manner that inflates the adjustable bladder when the current pressure is below a target pressure and in a manner that deflates the adjustable bladder when the current pressure is above the target pressure. The inflation and deflation of the adjustable bladder are achieved in an iterative manner by controlling the flow of fluid between the constant pressure reservoir and the adjustable bladder over several cycles of heel strikes.

A multi-part sole and heel assembly is provided. The multi-part sole and heel assembly may be embodied as an apparatus or assembly, having a sole portion and a heel portion. The multi-part sole and heel assembly may include a soft sole second layer applied to an inner surface of a first outermost sole layer, wherein the soft sole second layer further comprises a soft sole landing area configured to provide comfort for a foot and displace sounds and impact force effects during a step.

A multi-part sole and heel assembly is provided. The multi-part sole and heel assembly may be embodied as an apparatus or assembly, having a sole portion and a heel portion. The multi-part sole and heel assembly may include a soft sole second layer applied to an inner surface of a first outermost sole layer, wherein the soft sole second layer further comprises a soft sole landing area configured to provide comfort for a foot and displace sounds and impact force effects during a step.

A high heel footwear including a heel tip assembly and a heel assembly. The heel tip assembly includes a top lift abutting against the heel, a rigid shaft member having a threaded portion, and a first wedge-lock feature configured to prevent the top lift from rotating. The heel assembly includes a threaded insert, a spring, a hollow insert, and a second wedge-lock feature. The threaded insert is received inside an opening formed in the heel to receive the threaded portion of the rigid shaft member. The spring is also received inside the opening and abuts against the threaded insert. The hollow insert abuts against the spring. The rigid shaft member passes through the threaded insert, the spring, and the hollow insert. The second wedge-lock feature locks with the first wedge-lock feature to retain the top lift on the end of the heel. A cutout feature in the heel tip cooperates with the shaft member to lock the two together and allow the heel tip to be replaced without removing the shaft member.

A high heel footwear including a heel tip assembly and a heel assembly. The heel tip assembly includes a top lift abutting against the heel, a rigid shaft member having a threaded portion, and a first wedge-lock feature configured to prevent the top lift from rotating. The heel assembly includes a threaded insert, a spring, a hollow insert, and a second wedge-lock feature. The threaded insert is received inside an opening formed in the heel to receive the threaded portion of the rigid shaft member. The spring is also received inside the opening and abuts against the threaded insert. The hollow insert abuts against the spring. The rigid shaft member passes through the threaded insert, the spring, and the hollow insert. The second wedge-lock feature locks with the first wedge-lock feature to retain the top lift on the end of the heel. A cutout feature in the heel tip cooperates with the shaft member to lock the two together and allow the heel tip to be replaced without removing the shaft member.

A bladder for an article of footwear includes a chamber having (i) an arcuate segment extending from a first transition to a second transition, (ii) a first plurality of elongate segments extending in a first direction from the first transition to a first terminal end, and (iii) a second plurality of elongate segments spaced apart from the first plurality of elongate segments and extending in the first direction from the second transition to a second terminal end. The bladder also includes a web area connecting the arcuate segment, the first plurality of elongate segments, and the second plurality of elongate segments and extending to a terminal edge spaced apart from each of the first terminal end and the second terminal end.

A bladder for an article of footwear includes a chamber having (i) an arcuate segment extending from a first transition to a second transition, (ii) a first plurality of elongate segments extending in a first direction from the first transition to a first terminal end, and (iii) a second plurality of elongate segments spaced apart from the first plurality of elongate segments and extending in the first direction from the second transition to a second terminal end. The bladder also includes a web area connecting the arcuate segment, the first plurality of elongate segments, and the second plurality of elongate segments and extending to a terminal edge spaced apart from each of the first terminal end and the second terminal end.

The present invention provides an anti-sprain and shock-absorbing balance sole and a footgear including the same, the anti-sprain and shock-absorbing balance sole includes an upper sole and a lower sole, a cavity is sandwiched between the upper sole and the lower sole, multiple compressible and reboundable shock-absorbing elements are embedded in the cavity. The shock-absorbing elements in the sole can buffer the impacts from the ground to the feet, and has good shock-absorbing effect. Second, the balance beams connecting the two shock-absorbing elements in each row can provide opposite roll torque when the road is uneven or the user stamps on stones. Third, the opposite roll torque above can prevent the sole from further rolling over, therefore improves the balance stability when walking. This can further effectively prevent the occurrence of spraining, and avoid sports injury during exercises.