Abstract: A spring unit including a resin spring that is made of a resin, has a structure having a single beam, and has a resin spring curved part between a pair of resin spring end parts; and a metallic spring that is made of a metallic wire and has a metallic spring curved part between a pair of metallic spring end parts, wherein each of the metallic spring end parts is attached to each of the resin spring end parts, wherein, in a state where each of the metallic spring end parts is attached to each of the resin spring end parts, the resin spring and the metallic spring are positioned on a same plane and are mutually separated at parts other than the resin spring end parts and the metallic spring end parts.

Abstract: In a curved spring configured to generate, based on a relative approaching displacement of the one-side bearing section and the other-side bearing section in an approach/separation direction, an urging force in a separation direction in which a one-side bearing section and an other-side bearing section are separated from each other, a linear elastic body is provided to extend on a closed curve, which includes a one-side portion arranged along a circumferential direction of the one-side bearing section and an other-side portion arranged along a circumferential direction of the other-side bearing section, and to constitute elastic sections of two lines between the one-side portion and the other-side portion.

Abstract: A curved spring includes one and another end parts configured to approach and separate relative to each other in an approaching/separating direction and plural beam parts that bend between the one end part and the other end part and extend in an extending direction. The plural beam parts are arranged in a width direction orthogonal to the approaching/separating direction. At least one combination of adjacent beam parts among combinations of the plural beam parts includes an outer side beam part having a width greater than a width of an inner side beam part in the width direction. The outer side beam part has a length less than a length of the inner side beam part in the approaching/separating direction. The one and the other end parts and at least one beam part of the plural beam parts are integrally molded on a shared plane by a synthetic resin.

Abstract: A sliding mechanism includes a first frame provided with a rail having a sliding direction that changes; a second frame that slides along the rail; a link that is mounted on the rail and the second frame and rotates to change a tilt angle of the first frame with respect to the second frame; a first stopper that regulates the rotation of the link; and a second stopper that regulates the rotation of the link from a direction different from that of the first stopper.

Abstract: A slide-type cover opening and shutting device for a portable terminal according to an exemplary embodiment of the invention includes: a plate-shaped guide member; a plate-shaped movable member that is slidably assembled to the guide member, and an elastic member of which ends are rotatably connected to the guide member and the movable member, respectively.

Abstract: A sliding mechanism for a portable electronic device includes a body section, a cover section, a coil spring mounted to the body section, and an elastic sheet fixed to the cover section. The body section or the cover section defines a sliding slot on a side thereof, with the other section comprising a rail corresponding to the sliding slot. The rail is slidably received in the sliding slot. The coil spring deforms the elastic sheet to generate tensile force when the coil spring is not aligned with the elastic sheet, driving the cover section to the open or closed position.

Abstract: An external control assembly for a quick-release device of a linear actuator comprises a collar and a handle and the purpose of the quick-release device for promptly returning a workpiece driven by the linear actuator can be achieved by implementing the handle to rotate the collar. According to the present invention, the collar has a polygon-shaped out periphery and the handle comprises a assembling hole shaped in a polygon shape corresponding to the out periphery of the collar so that when the handle is mounted onto the out periphery of the collar, a combined motion of simultaneous rotation about the axis of the collar of the handle can be achieved.