A holding device for receiving switching elements for a command and alert device, with a first housing portion in which a recess for receiving an actuator of a command and alert device is arranged, and with a second housing portion arranged on the first housing portion and which continues the recess of the first housing portion, where guide rails for guiding transmission elements are formed in the housing portions, and where the transmission elements transmit an actuation of the actuator to a switching element.

Provided is a switch that can be downsized. A switch is provided with a plunger, two upper torsion springs that bias the plunger in a returning direction, housing-side contacts, and plunger-side contacts. One of the upper torsion springs is arranged on one side of a plane that includes an axis passing through a central portion of the plunger, and that is perpendicular to perpendicular lines M connecting the plunger-side contacts and the axis, and the other one of the upper torsion springs is arranged on the other side of the plane.

Provided is a switch that can be downsized. A switch is provided with a plunger, and an upper torsion spring configured to bias the plunger in a returning direction. The torsion spring has a first arm that extends to the plunger and abuts against the plunger. The plunger has a hole at a position into which the first arm is inserted. The hole is a through hole extending in a direction that is perpendicular to a direction in which the plunger moves, and is the same as a direction in which the first arm extends when viewed in the direction in which the plunger moves.

Provided is a switch with excellent operability. A switch is provided with a plunger, a lower torsion spring in which a biasing direction changes according to the movement of the plunger. The lower torsion spring biases the plunger in a returning direction when the plunger is in a reference position, and biases the plunger in a direction different from the returning direction when the plunger is in an operation position.

Provided is a switch that can reliably bring contacts into contact with each other with a small load, and can be prevented from malfunctioning. A switch is provided with a plunger, a lower torsion spring in which a biasing direction changes according to the movement of the plunger. The lower torsion spring biases the plunger in an opposite direction to a returning direction when the plunger is in the operation position, and biases the plunger in a direction different from the opposite direction to the returning direction when the plunger is in the reference position.

A switch device structure serves to help in stably moving an operation rod. The switch device includes a contact fixing support assembled with an insulation case. The fixing support is formed with multiple openings. A connection board and multiple support members are correspondingly assembled in the openings. The support member has a base section and a neck section, which together define a passage. The operation rod is assembled with an elastic unit and can pass through the passage and the connection board to extend into the fixing support so as to move a wire connection assembly in the case. The switch device structure improves the shortcoming of the conventional switch device that the operation rod is apt to shake and deflect.

The invention relates to an electrical switching device, in particular a position switch, limit switch, microswitch or other limit stop switch, having at least one housing and one or more electrical switch contacts arranged in the housing, the housing having at least one actuation opening, via which the switch contact(s) can be actuated mechanically from a position outside the housing, the switching device, as a further separate component, having at least one actuator, which has at least one actuation ram that is longitudinally displaceable in the direction of a longitudinal axis of the actuator, the actuator, in a number of different rotation angle positions with regard to the longitudinal axis, being securable to the housing of the switching device in a manner secured against rotation, in such a way that, in the event of external actuation of the actuation ram, the switch contact(s) can be mechanically actuated, a strap being provided as securing means to mechanically secure the actuator to the housing of the switching device, which strap can be slid over at least part of the actuator and at least part of the housing of the switching device.

A contact element which, on account of its low installation depth, is suitable for use in switch panels of low overall height and can be combined with various keys. The contact element has a main body, two connection terminals, which are obliquely mounted in the main body, for electrical conductors, two busbars which are in each case electrically connected to one of the connection terminals and run from the respective connection terminal to a bearing arranged centrally in the main body. A tappet which is spring-mounted in the central bearing can be moved between a first and a second position and is fitted with a contact bridge which electrically short-circuits the two busbars in one of the two positions, wherein a portion of the tappet, which portion projects out of the main body, is designed to be coupled to a key.

A switch device structure includes at least one contact seat having a first end wall, a second end wall, two sidewalls, an upper section and a bottom section to together define a cavity for arranging a contact assembly. Each of the first and second end walls of the contact seat has a protruding assembling section and an oblique socket directed to the assembling section. The switch device structure includes a contact support equipped with a fixing board. The contact support is formed with latch sections detachably latched with the assembling sections. An operator can use a tool to directly pass through the oblique socket to unlatch the latch section from the assembling section to quickly install/uninstall the contact seat and the contact support. This solves the problem of the conventional switch device that it is troublesome and time-consuming to install/uninstall the contact seat and the contact support.

This application relates to a dome switch assembly including a base plate that carries a first contact, and a flexible surface connected to the base plate, the flexible surface formed of a metal material in the shape of a dome. The assembly can include a second contact coupled to the flexible surface, and a sound-dampening pad coupled to the flexible surface and formed of a material having noise-dampening properties, wherein when at least a threshold amount pressure is applied to the flexible surface, the flexible surface changes from the dome shape to a collapsed shape allowing the first and second contact to touch, wherein the sound dampening pad absorbs at least some acoustic energy emitted by the touching of the first and second contacts.