A device for use in a shoe includes a first foot, a second foot, a third foot, a fourth foot, a first flexible leg, a second flexible leg, a third flexible leg, and a fourth flexible leg. The first flexible leg extends from the first foot and is curved. The second flexible leg extends from the second foot and is curved. The third flexible leg extends from the third foot and is curved. The fourth flexible leg extends from the fourth foot and is curved. The first flexible leg, second flexible leg, third flexible leg, and fourth flexible leg are joined together with each other at a common area. The first flexible leg, second flexible leg, third flexible leg, and fourth flexible leg are configured to store energy when a force is applied to the common area, and to return energy when the force is removed from the common area.

A torque balancing device, a self-balancing joint and a surgical robot are provided. The torque balancing device includes a first body, a second body, an elastic part and a transmission part, the first body includes a first connection end and a first opposite end opposite to the first connection end, the second body includes a second connection end and a second opposite end opposite to the second connection end, the second connection end of the second body is rotatably connected to the first connection end of the first body, the elastic part is provided in the first body, and the transmission part is connected to the second body and the elastic part.

A glove box according to an embodiment of the present disclosure includes a cover that is embedded in a dashboard of a vehicle in a state in which a front side of the cover is open, a housing that is accommodated in a state in which one open surface is covered by the cover and that selectively opens or closes the front side of the cover through a preset rotational trajectory, a plurality of transfer links that are arranged between both outer ends of the housing and both inner ends of the cover and transfer the housing along the rotational trajectory, a damper that is connected to the transfer links and corrects a rotational force of the housing, and a locking member that is connected between the cover and the housing and selectively locks the housing from the cover.

A damper for a torque converter is disclosed. The damper includes an outer spring and an inner spring coaxial with the outer spring; and a retaining plate to retain the outer spring and the inner spring. The retaining plate includes an upper spring guide, a lower spring guide, an outer spring support, and an inner spring support, wherein the upper spring guide extends substantially around an outer periphery of the retaining plate, the lower spring guide extends around an inner periphery of the retaining plate, the outer spring support directly contacts axial ends of the outer spring and the inner spring, and the inner spring support directly contacts the axial ends of the outer spring and the inner spring.

A coil spring jig includes a spring support portion where one end of a coil spring is capable of being placed, a plurality of displacement regulating portions extending along an axis of the coil spring from the spring support portion with the coil spring supported by the spring support portion as a reference, capable of abutting against an outer peripheral surface of the coil spring, and regulating displacement of the coil spring in a radial direction of the coil spring, and a lid portion supported by the displacement regulating portions and capable of keeping the coil spring in a compressed state by sandwiching the coil spring together with the spring support portion.

A damper for a torque converter is disclosed. The damper includes an outer spring and an inner spring coaxial with the outer spring; and a retaining plate to retain the outer spring and the inner spring. The retaining plate includes an upper spring guide, a lower spring guide, an outer spring support, and an inner spring support, wherein the upper spring guide extends substantially around an outer periphery of the retaining plate, the lower spring guide extends around an inner periphery of the retaining plate, the outer spring support directly contacts axial ends of the outer spring and the inner spring, and the inner spring support directly contacts the axial ends of the outer spring and the inner spring.

A device for use in a shoe includes a first foot, a second foot, a third foot, a fourth foot, a first flexible leg, a second flexible leg, a third flexible leg, and a fourth flexible leg. The first flexible leg extends from the first foot and is curved. The second flexible leg extends from the second foot and is curved. The third flexible leg extends from the third foot and is curved. The fourth flexible leg extends from the fourth foot and is curved. The first flexible leg, second flexible leg, third flexible leg, and fourth flexible leg are joined together with each other at a common area. The first flexible leg, second flexible leg, third flexible leg, and fourth flexible leg are configured to store energy when a force is applied to the common area, and to return energy when the force is removed from the common area.

Various embodiments of the present technology may provide methods and apparatus for a 3D-printed spring. The 3D-printed spring may be formed from a plurality of toroidal elements spaced apart from each other and connected with a plurality of connectors. Each connector connects one toroidal element to a directly adjacent toroidal element.

A dual-acting single-spring twin-tube shock absorber assembly is provided. The assembly includes at least one twin-tube shock absorber component; at least one piston rod component coaxially coupled with said twin-tube shock absorber component and configured to telescope in and out of out of the same with compression and extension stroke respectively; one helical compression spring disposed outside the outer wall of said twin-tube shock absorber component; at least one spring guide component and at least one spring actuator component which is adapted to perform the dual action of achieving compression and extension force and a neutral position at the center without preload.

A supporting device including an installation assembly; a first supporting arm assembly having a longitudinal direction, a first end, and a second end; a switching bracket; a bearing unit pivotally connected to the switching bracket; and at least one gas spring is provided. The first end is pivotally connected to the installation assembly. The switching bracket is pivotally connected to the second end of the first supporting arm assembly. The gas spring is disposed in the first supporting arm assembly and is respectively connected to the switching bracket and the installation assembly to provide a supporting force. Each gas spring has a hollow tube, a piston rod, and a compression spring. The piston rod is slidably disposed through the hollow tube and has a head. The head may be varied between maximum and minimum protruding positions relative to the hollow tube. The compression spring is sleeved on the piston rod.