An interchangeable shoe heel for a shoe having a shoe body with a heel part, the heel part having a metal rod extending over at least half the length of the shoe heel, and connected to the heel part, the rod protruding with its free end from the heel part. The shoe heel has a first part having an upper recess into which the rod engages with its free end and/or the heel part. The upper recess has a support surface, e.g., a collar or base wall, on its inner wall, on which the rod or a support area of the heel part is supported in the axial direction of the rod. A heel tip is arranged on the lower end of the first part, and the first part is covered by and connected to an encasing wall, extending from the heel tip up to the shoe body.

A convertible shoe may include a sole and a plurality of interchangeable heel portions, each selectively attachable to the sole. The heel portions may each include a mounting surface configured to interface with a heel receiver of the sole. The heel receiver may include a fixed hook and a movable hook, with the movable hook being operable by an actuator coupled to a bottom surface of the sole.

A convertible shoe may include a sole and a plurality of interchangeable heel portions, each selectively attachable to the sole. The heel portions may each include a mounting surface configured to interface with a heel receiver of the sole. The heel receiver may include a fixed hook and a movable hook, with the movable hook being operable by an actuator coupled to a bottom surface of the sole.

The present invention is an insert having a raised region that contacts an arch region of a wearer's foot, which may be selectively reinforced with a removable supplemental support. In exemplary embodiments, the insert includes a heel region adapted to receive at least a region of a heel of a wearer, and the raised region has a length situated along a width of the insert and adapted to underlie a calcaneus-midtarsal connection of a foot the wearer. The raised region is defined by a bottom semi-cylindrical surface that forms a cavity below the raised region so that an apex of the bottom semi-cylindrical surface lies above a bottom flat surface of the insert. Inside the cavity, the support is removably coupled to the cavity for selectively increasing or decreasing a rigidity of the raised region of the insert in order to apply a user-selected therapeutic pressure.

A convertible shoe may include a sole and a plurality of interchangeable heel portions, each selectively attachable to the sole. The heel portions may each include a mounting surface configured to interface with a heel receiver of the sole. The heel receiver may include a fixed hook and a movable hook, with the movable hook being operable by an actuator coupled to a bottom surface of the sole. In some examples, an upper is secured to the sole of the shoe by one or more clamping plates. In some examples, the sole of the shoe is configured to be biased into a default bend corresponding to a high-heeled state even when a low heel is attached to the heel receiver.

A convertible shoe may include a sole and a plurality of interchangeable heel portions, each selectively attachable to the sole. The heel portions may each include a mounting surface configured to interface with a heel receiver of the sole. The heel receiver may include a fixed hook and a movable hook, with the movable hook being operable by an actuator coupled to a bottom surface of the sole. In some examples, an upper is secured to the sole of the shoe by one or more clamping plates. In some examples, the sole of the shoe is configured to be biased into a default bend corresponding to a high-heeled state even when a low heel is attached to the heel receiver.

An interchangeable heel device for a shoe is disclosed. The device has an upper heel block, a detachable heel, and a key. The key is in a top of the detachable heel or in a bottom of the upper heel block and a receiving recess is in the other of the detachable heel or upper heel block. The key is movable within the receiving recess between a released position and an engaged position. In the engaged position, each key first engagement portion is engaged with one of the receiving first engagement portions and each key second engagement portions is engaged with one of the receiving second engagement portions to join the key to the perimeter of the receiving recess and the heel to the sole. In the released position, each key first engagement portion is aligned with one of the receiving non-engagement recesses and the key is removable from the receiving recess.

An interchangeable heel device for a shoe is disclosed. The device has an upper heel block, a detachable heel, and a key. The key is in a top of the detachable heel or in a bottom of the upper heel block and a receiving recess is in the other of the detachable heel or upper heel block. The key is movable within the receiving recess between a released position and an engaged position. In the engaged position, each key first engagement portion is engaged with one of the receiving first engagement portions and each key second engagement portions is engaged with one of the receiving second engagement portions to join the key to the perimeter of the receiving recess and the heel to the sole. In the released position, each key first engagement portion is aligned with one of the receiving non-engagement recesses and the key is removable from the receiving recess.

Shoe base for comprising a sole (11), a fixation means (30) configured to replaceably fix a heel (20), wherein the fixation means (30) provides a positive form configured to provide a form fit with the heel, wherein the positive form comprises a first cylinder arranged on the sole (11), a second cylinder arranged on the first cylinder and having a smaller diameter than the first cylinder, and a third cylinder arranged on the second cylinder and having a smaller diameter than the second cylinder.

Shoe base for comprising a sole (11), a fixation means (30) configured to replaceably fix a heel (20), wherein the fixation means (30) provides a positive form configured to provide a form fit with the heel, wherein the positive form comprises a first cylinder arranged on the sole (11), a second cylinder arranged on the first cylinder and having a smaller diameter than the first cylinder, and a third cylinder arranged on the second cylinder and having a smaller diameter than the second cylinder.