A device for switching medium and/or high voltages has a spring-loaded drive for driving a kinematic chain. At least one energy storage spring and at least one damping element for generating a drive movement with specific drive characteristics are included. The at least one damping element is an active damping element. The damping is actively determined during switching or it is predetermined, in particular depending on environmental variables and/or the type of switching situation, by changing the settings of the at least one damping element.

A bidirectional energy storage device for a joint includes: a sleeve comprising an open end and an opposite, closed end; an elastic member attached to the sleeve; a sliding member slidably arranged at the open end of the sleeve, wherein opposite ends of the elastic member are respectively in contact with the closed end of the sleeve and the sliding member; a first telescopic link comprising a first end pivotally connected to the sliding member and an opposite, second end; and a second telescopic link comprising a first end pivotally connected to the sliding member and a second end. The second ends of the first telescopic link and the second telescopic link are pivotally connected to a rotating member at an end of the joint, and the first telescopic link and the second telescopic link are to extend and retract to drive the sliding member to side along the sleeve.

A bidirectional energy storage device for a joint includes: a sleeve comprising an open end and an opposite, closed end; an elastic member attached to the sleeve; a sliding member slidably arranged at the open end of the sleeve, wherein opposite ends of the elastic member are respectively in contact with the closed end of the sleeve and the sliding member; a first telescopic link comprising a first end pivotally connected to the sliding member and an opposite, second end; and a second telescopic link comprising a first end pivotally connected to the sliding member and a second end. The second ends of the first telescopic link and the second telescopic link are pivotally connected to a rotating member at an end of the joint, and the first telescopic link and the second telescopic link are to extend and retract to drive the sliding member to side along the sleeve.

According to an aspect of the present disclosure, a display device includes: a display unit including a display panel in which an image is displayed; a first roller configured to wind or unwind the display unit; a tape spring which vertically moves the display unit on a rear surface of the display unit; and a second roller configured to wind or unwind the tape spring, the second roller includes: a tape spring drum to which one end of the tape spring is fixed and configured to wind or unwind the tape spring; a tape spring case accommodating the tape spring drum and the tape spring; and a corrugate spring between the tape spring drum and the tape spring case and configured to press the tape spring toward the tape spring drum. Therefore, a slip phenomenon of the tape spring may be improved.

According to an aspect of the present disclosure, a display device includes: a display unit including a display panel in which an image is displayed; a first roller configured to wind or unwind the display unit; a tape spring which vertically moves the display unit on a rear surface of the display unit; and a second roller configured to wind or unwind the tape spring, the second roller includes: a tape spring drum to which one end of the tape spring is fixed and configured to wind or unwind the tape spring; a tape spring case accommodating the tape spring drum and the tape spring; and a corrugate spring between the tape spring drum and the tape spring case and configured to press the tape spring toward the tape spring drum. Therefore, a slip phenomenon of the tape spring may be improved.

An aircraft spring assembly having a spring, an end fitting including a spring engagement formation arranged to be mechanically coupled to an end region of the spring and a coupling formation for coupling the spring assembly to an aircraft anchor point. The coupling formation includes a load bearing surface via which loads from the anchor point can be transmitted into the spring assembly. The assembly further includes an integral damping member provided within the load path between the load bearing surface of the coupling formation and the end region of the spring.

An aircraft spring assembly having a spring, an end fitting including a spring engagement formation arranged to be mechanically coupled to an end region of the spring and a coupling formation for coupling the spring assembly to an aircraft anchor point. The coupling formation includes a load bearing surface via which loads from the anchor point can be transmitted into the spring assembly. The assembly further includes an integral damping member provided within the load path between the load bearing surface of the coupling formation and the end region of the spring.

A delivery system having a telescoping spring is used to drive a plunger. The telescoping spring includes a nested inner spring that uses the unused volume on the inside of an outer spring. The telescoping spring has a staged release of each spring. The inner spring is connected to a non-anchored end of the outer spring, and rides within a container located within an inner dimension of the outer spring. The spring constant K of each spring can be the same or different. The delivery system can be fully mechanical or implemented as a smart delivery system under electronic control.

A delivery system having a telescoping spring is used to drive a plunger. The telescoping spring includes a nested inner spring that uses the unused volume on the inside of an outer spring. The telescoping spring has a staged release of each spring. The inner spring is connected to a non-anchored end of the outer spring, and rides within a container located within an inner dimension of the outer spring. The spring constant K of each spring can be the same or different. The delivery system can be fully mechanical or implemented as a smart delivery system under electronic control.

A bicycle is disclosed as having a seat and a seat post assembly supported supporting the seat. The seat post assembly includes a lower seat support, an upper seat support secured to the seat and movable (e.g., telescopically) relative to the lower seat support, a locking mechanism for selectively locking and unlocking the upper seat support relative to the lower seat support, and an actuating mechanism to facilitate moving the upper seat support relative to the lower seat support. The actuating mechanism comprises a spring having first and second nodes, and a drive system adapted drive the second node while the first node is engaged with the upper seat support to energize the spring. In one embodiment, the drive system comprises a reciprocating driver constructed to drive either one of the first node and the second node. Preferably, the reciprocating driver is driven by a unidirectional rotor.