A coil spring assembly, including: a coil spring with a first longitudinal end and a second longitudinal end; a first end cap fixedly connected to the first longitudinal end with a first adhesive; and a second end cap fixedly connected to the second longitudinal end with a second adhesive. A method of fabricating a coil spring assembly, including: fixedly connecting, with a first adhesive, a first end cap to a first longitudinal end of a coil spring; and fixedly connecting, with a second adhesive, a second end cap to a second longitudinal end of the coil spring.

An inverted constant force window balance system includes a carrier assembly and a mounting bracket. The carrier assembly includes a housing, a coil spring disposed within the housing, and a shoe assembly coupled to the housing. The shoe assembly is configured to receive a pivot bar from a window sash and extend at least one brake upon rotation of the pivot bar. The mounting bracket is releasably coupled to the housing opposite the shoe assembly and is coupled to the free end of the coil spring. At least a portion of the mounting bracket is configured to slideably move in relation to the free end of the coil spring between at least two positions. When at least a portion of the mounting bracket moves between the at least two positions, the mounting bracket disengages from the housing and releases the mounting bracket from the carrier assembly.

A torsion coil spring supporting structure includes a first supporting portion opposing one end of a torsion coil spring with respect to an axial direction of the torsion coil spring; and a second supporting portion opposing the other end of the torsion coil spring with respect to the axial direction. The first supporting portion includes a spring supporting portion cooperative with the second supporting portion to support the torsion coil spring at a mounting position. The first supporting portion is elastically deformable, by moving the torsion coil spring, to permit the torsion coil to move to the mounting position in a direction crossing the axial direction and elastically restorable to place the spring supporting portion in an inner diameter portion of the torsion coil spring, thus supporting the torsion coil spring at the mounting position.

A cable supporting device can suppress a coil spring from protruding toward an inner circumferential side of a tubular portion of a main body, and can apply, to a nut member, a rotational force in a direction toward a stopper. The cable supporting device includes: a main body including a tubular portion in which a through hole is formed and on which an external thread is formed; a nut member; a stopper arranged on one side in the first direction with respect to the external thread and opposed to the nut member; and a coil spring applying, to the nut member, a rotational force in a direction approaching the stopper. An engagement portion that engages a first end portion of the coil spring is formed in the nut member, and an insertion groove is formed on the outer circumferential surface of the tubular portion.

An inverted constant force window balance system includes a carrier assembly and a mounting bracket. The carrier assembly includes a housing, a coil spring disposed within the housing, and a shoe assembly coupled to the housing. The shoe assembly is configured to receive a pivot bar from a window sash and extend at least one brake upon rotation of the pivot bar. The mounting bracket is releasably coupled to the housing opposite the shoe assembly and is coupled to the free end of the coil spring. At least a portion of the mounting bracket is configured to slideably move in relation to the free end of the coil spring between at least two positions. When at least a portion of the mounting bracket moves between the at least two positions, the mounting bracket disengages from the housing and releases the mounting bracket from the carrier assembly.

A connector assembly includes a shank having an inner abutment proximate to an inner extremity, and an outer abutment proximate to an outer extremity. A connector includes an inner loop that encircles the shank between the inner abutment and the outer abutment and that is movable reciprocally along the shank, a first portion that extends outwardly from the inner loop to a second portion that extends from the first portion past the outer extremity and the abutment to a third portion that extends inwardly and forwardly from the second portion to a pivotally mountable outer loop. Tensioned compression springs encircle the shank between the inner abutment and the inner loop, and act between the inner abutment and the inner loop urging the inner loop toward the outer abutment.

A multilayer wind spring for a display support and a lifting support thereof, the multilayer wind spring is formed by tightly attaching and winding multiple elastic metal sheets, each of the elastic metal sheets comprises: a stretching connection portion which is not involved in winding and unwinding and is always kept in an initial state, a movable sheet portion which is involved in winding and unwinding, and an unmovable wound portion which is not involved in stretching and is always kept in a wound state, the stretching connection portion, the movable sheet portion, and the unmovable wound portion are formed integrally and sequentially arranged in an unwinding direction, and the elastic metal sheets of the unmovable wound portions are arranged fixedly relative to one another.

A torque transfer mechanism includes an input member to receive an input torque from a propulsion source and an output member coupled to the input member to transfer the input torque to a driveline component. The torque transfer mechanism also includes a damping mechanism having at least one spring element to restrict relative rotation between the input member and the output member. wherein the at least one spring element defines a first spring rate corresponding to an initial range of travel that is less than a second spring rate corresponding to a subsequent range of travel.

A coil spring assembly, including: a coil spring with a first longitudinal end and a second longitudinal end; a first end cap fixedly connected to the first longitudinal end with a first adhesive; and a second end cap fixedly connected to the second longitudinal end with a second adhesive. A method of fabricating a coil spring assembly, including: fixedly connecting, with a first adhesive, a first end cap to a first longitudinal end of a coil spring; and fixedly connecting with a second adhesive, a second end cap to a second longitudinal end of the coil spring.

A fastener driving tool includes a housing, a striking member, an energy storing unit and a handle unit. The energy storing unit has a torsion spring which has weighted and driving legs extending from two ends of a coil. The driving leg is biased against and engaged with the weighted leg to be preloaded with a downward potential energy that urges a downward movement of the torsion spring and the striking member. The handle unit includes a handle and an anchoring member removably engaged with the striking member. When the handle is pivotally moved from a ready position to a striking position, the weighted leg is moved downwardly and the anchoring member and the striking member are moved upwardly to gradually increase a loading of the torsion spring for the striking member.