A spring piece is formed integrally as part of a drive arm that presses an operational body. The spring piece is disposed between a pressing part at which the drive arm presses the operational body and a linkage part that acts a swinging fulcrum. A contact part between the spring piece and a case is positioned closer to the linkage part than the bend bottom end is. When the drive arm swings from an initial orientation to a completely swung orientation, the spring piece can generate an elastic return force. The elastic return force does not largely increase even when the drive arm swings.

A speed control switch includes a base. An upper end of the base is provided with a switch assembly. A side of the base is provided with a PCB board and a slide terminal. The PCB board is provided with a first contact plate. The slide terminal is slidably connected with the first contact plate. The base is provided with a trigger assembly for driving the slide terminal to slide along the first contact plate and to close the switch assembly. The speed control switch can regulate the speed of a motor precisely. The structure is compact to reduce the size of the switch, so that it is convenient for operation.

A balanced low travel key switch device includes limiting recesses, first sliding recesses, and second sliding recesses mounted on a plate body. A first frame member has a first main body connected to a key cap, first lateral portions connected to the first main body, first pivotal portions connected to the first lateral portions, engaging blocks movable in the first sliding recesses, and positioning rods movable in the limiting recesses. A second frame member has a second main body pivotally connected to the key cap, second lateral portions connected to the second main body, second pivotal portions connected to the second lateral portions and the first pivotal portions, second engaging blocks disposed on the second lateral portions and movable in the second sliding recesses.

An electronic control device may be configured to be integrated, or coupled, with a bicycle to control bicycle components. The electronic control device may wirelessly control bicycle components to trigger an action when actuated. The electronic control device may be dimensioned to have a mating surface contoured to matingly engage with a mounting surface of a bicycle, such as on a handlebar. The electronic control device may also be dimensioned to have a compact and/or concealed appearance aided by a low profile relative to the bicycle mounting surface selected for the control device.

A key stabilizer is provided, in which the key stabilizer includes a keycap and a balance bar. The keycap has a bottom surface and two protruding portions disposed thereon. The keycap moves back and forth along a vertical direction between a top position and a bottom position. Each of the two protruding portions has an engaging portion at the end thereof. The bottom surface faces the bottom position, and the two protruding portions are arranged along a horizontal direction that is perpendicular to the vertical direction. The balance bar has a hinge portion and two side portions respectively connected to both ends of the hinge portion. The hinge portion is positioned on a rotation axis parallel to the horizontal direction. The end of each of the two side portions that is away from the hinge portion is inserted into the engaging portion.

Disclosed herein is an oven including a display module. The oven includes a main body and a display module pivotably installed on the main body, wherein the display module includes a fixed module fixedly coupled to the main body, a moving module pivotably coupled to the fixed module and including a display panel provided to be manipulated by a user, a driving module and disposed on the fixed module and configured to generate a driving force such that the moving module is pivoted, and a detection module including a press pin configured to detect a position of the moving module depending on whether or not the press pin is pressurized.

Disclosed is a terminal fixed lamp switch for a parking brake and a structure of a lamp switch is configured to be changed, which indicates that a parking brake is pulled as lighting a lamp on a instrument panel of a vehicle by pulling a lever for the parking brake to prevent malfunction due to poor contact of the lamp switch when an external shock occurs, and enhance fuel efficiency and reduce manufacturing cost due to weight reduction.

A switching device includes a switch and an actuating element. The actuating element for a switch includes a U-shaped actuating section. The actuating section includes two different arms with different lengths. The long arm is configured to transfer force to a button of the switch and a free end of the long arm is configured for holding the actuating element. The short arm is configured for the force input and is arranged aligned obliquely to the long arm.

A deadman switch system includes a primary deadman switch actuator and a secondary deadman switch actuator for controlling the flow of an air/abrasive mix through a flow line of a delivery system. The secondary deadman switch is positioned in series with a primary deadman switch actuator such that the controlled flow will not function unless first the primary deadman switch and then the secondary switch are closed. The preferred embodiment of the switch is a low-profile configuration adapted to be mounted in axial alignment with the flow line in a manner to minimize interference with normal operation of the system. The switch can include multiple open/close elements, for selectively controlling different flow functions.

A spring piece is formed integrally as part of a drive arm that presses an operational body. The spring piece is disposed between a pressing part at which the drive arm presses the operational body and a linkage part that acts a swinging fulcrum. A contact part between the spring piece and a case is positioned closer to the linkage part than the bend bottom end is. When the drive arm swings from an initial orientation to a completely swung orientation, the spring piece can generate an elastic return force. The elastic return force does not largely increase even when the drive arm swings.