An adapter assembly configured to be coupled to a surgical loading unit includes a switch, an elongated member, and an annular member. The switch is configured to be toggled in response to the surgical loading unit being coupled to the adapter assembly. The elongated member is in communication with the switch and is resiliently biased in a distal direction toward a locking position in which the switch is toggled. The annular member is disposed adjacent the elongated member and is rotatable between a first orientation, in which the annular member prevents distal movement of the elongated member, and a second orientation, in which the elongated member moves distally to toggle the switch.

A switch mechanism includes a housing with a fenestration, a switch element held in the housing, and a first tab and a second tab each being pivotally attached to an opposite lateral edge of the fenestration. The tabs are constrained to rotational movement relative to the housing so that contact with the first tab or the second tab causes the respective tab to rotate to actuate the switch element.

A switch mechanism (12) includes a housing (16, 18) with a fenestration (21), a switch element (22) held in the housing, and a membrane switch held in the fenestration. The membrane switch includes a flexible membrane (20) and a rigid rib (26). The rib is constrained to linear movement by guides (37, 38) in the housing so that contact with the membrane causes the membrane to deform and the rib to translate to actuate the switch element.

Aspects of the disclosure relate to a games controller for controlling electronic games, input device for a computer program and a trigger mechanism therefor. The trigger mechanism comprises a trigger body having a plurality of walls defining an internal chamber. The plurality of walls include a base wall and an orifice defined in the base wall. A detent is detachably mounted on the trigger body. The detent is at least partially received in the orifice and the detent is rotatable with respect to the trigger body. The detent comprises at least one abutment surface which is eccentrically arranged with respect to the rotational axis of the detent.

A key mechanism including one or more butterfly hinges. Each butterfly hinge may include a double wing design operative to move between a depressed position and non-depressed position. Hinged coupling mechanisms couple respective arms of the wings together. Additionally or alternatively, a key mechanism can include one or more half-butterfly hinges. Each half-butterfly hinge includes a double wing design operative to move between a depressed position and non-depressed position. A hinged coupling mechanism couples one set of corresponding arms of the wings together, while the other set of corresponding arms are not coupled together.

An operating device includes: an operating section that rotates about a predetermined axis; and a shaft part to move integrally with the operating section. The shaft part has a first end and a second end projected in directions opposite from each other along the axis. A guide regulates movement of the shaft part in a radial direction. A first regulation part specifies a position of the shaft part in a thrust direction by contacting the first end of the shaft part. A second regulation part is press-contacted to the second end, such that the first end of the shaft part is made to contact the first regulation part. A locking part is arranged integrally with the second regulation part, and restricts the shaft part from separating from the guide, by contacting the second end.

An adapter assembly configured to be coupled to a surgical loading unit includes a switch, an elongated member, and an annular member. The switch is configured to be toggled in response to the surgical loading unit being coupled to the adapter assembly. The elongated member is in communication with the switch and is resiliently biased in a distal direction toward a locking position in which the switch is toggled. The annular member is disposed adjacent the elongated member and is rotatable between a first orientation, in which the annular member prevents distal movement of the elongated member, and a second orientation, in which the elongated member moves distally to toggle the switch.

A panel-type control button, including: a press key base, a press key panel, a switch board and a springback key. The press key panel is snap-fitted on the front surface of the press key base, and one end of the press key panel is rotatably mounted at one end of the press key base. The switch board is located on the back surface of the press key base, and is provided thereon with a switch element. The springback key is located above the switch element of the switch board. When the press key panel is pressed, the press key panel comes into contact with the springback key and triggers the switch element on the switch board, and further controls the opening and closing of the switch element. The springback key provides a springback force for the press key panel to reset.

A light switch adapter for actuating a light switch having a switch actuator movable between on and off positions includes an adapter stationary member removably mountable in fixed relation to the light switch, an adapter actuator movably attached to the adapter stationary member for moving relative to the adapter stationary member between on and off positions, and a pair of cords that engage the adapter actuator. The adapter actuator is responsive to pressure applied to its surfaces, and to increased tension in the cords to move to its off and on positions. The adapter actuator engages the switch actuator to urge the switch actuator to its off and on positions as the adapter actuator moves to its off and on positions. An adaptive interface member facilitates the application of increased tension to the cords. A computer system allows for monitoring use of the light switch adapter.

A push switch includes a housing including a bottom wall and a side wall, the housing extending in a first axis direction and a second axis direction in a plan view, and a fixed contact member configured to come into contact with a movable contact member, the fixed contact member being embedded in the bottom wall of the housing by insert molding, wherein the fixed contact member includes: a first terminal exposed to an outside from a first end portion in the first axis direction of the housing; and first extension portions, constituting a pair, that are both ends of the first terminal in the second axis direction, the first extension portions being bent upward and being embedded in the bottom wall or the side wall of the housing, or in both the bottom wall and the side wall of the housing, by the insert molding.