A keyswitch includes a cap, first and second support members slidably connected to the cap and opposite to each other, and first and second blocks formed on the cap. The cap is movable between a non-pressed position and a pressed position. The first support member abuts against the first block when the cap is located at the non-pressed position. The first block moves away from the first support member at a first gap when the cap moves downward from the non-pressed position. The first support member abuts against the cap when the cap is located at the non-pressed position, and abuts against the second block when the cap continues moving downward to the pressed position.

A switch includes: a housing having a box shape; a plunger movable in a first direction intersecting an opening surface; and a movable piece arranged inside the housing and is elastically deformable in a second direction intersecting the first direction. The plunger has a touching portion which is arranged so as to face the movable piece in the second direction inside the housing and to be able to elastically deform the movable piece in the second direction by touching the movable piece, and further, a lubricant retaining portion that can retain a lubricant is provided in at least one of the touching portion of the plunger and a touched portion of the movable piece.

A key structure includes a base plate, a switch element, a key pedestal and a keycap. The key pedestal includes an opening, a first hooking structure and a second hooking structure. The keycap includes an edge part, a triggering post, a third hooking structure and a fourth hooking structure. The third hooking structure and the fourth hooking structure are installed on the edge part. The switch element is installed on the base plate. The key pedestal is installed on the base plate. The triggering post is inserted into the opening to trigger the switch element. The third hooking structure of the keycap is movably connected with the first hooking structure of the key pedestal. The fourth hooking structure of the keycap is movably connected with the second hooking structure of the key pedestal. Consequently, the keycap is maintained in a horizontal state and not tilted.

An operating device having an optical finger navigation module for installation in a steering wheel of a motor vehicle, which allows for secure operation and can be produced at low cost, is disclosed. The operating device has a mounting frame, in which a first light guiding element and the optical finger navigation module is held by a light sealing element. The light sealing element is mounted by a snap connection on the mounting frame. The mounting frame has at least one guide element with which a movement of the mounting frame can be guided.

A switching device arrangement has a first contact set and a second contact set. The first contact set includes a first electric arc contact element and a first nominal current contact element. The first nominal current contact element can be moved relative to the first electric arc contact element. A first transmission is introduced in a kinematic chain in order to generate a relative movement of the first nominal current contact element and the first electric arc contact element. The first transmission is operationally connected between a stationary counter bearing and the first electric arc contact piece.

A portable keyboard includes: a polygonal pillar-shaped main body having a battery embedded therein; a key assembly connected to the main body, the key assembly having a plurality of key arrangements; and a connecting member formed to extend down to the bottom of the key assembly while connecting the key assembly and the main body to each other, wherein at least one key arrangement in the key assembly allows information to be entered by a touch, a first element is provided to the main body, a second element is provided to the key assembly, and the first element and the second element are attached to each other by magnetic force such that the key assembly is wound.

An improved switching device includes a guide configured to reduce undesired movement of the switching element. The guide includes an upper portion configured to receive the switching element and a lower portion configured to receive a spring. The upper portion defines a seat to receive the switching element and includes at least one resilient tab to retain the switching element within the guide. The lower portion defines an opening in which the spring is positioned, where the spring is seated, in part, against the switching element and against the guide. The guide includes guide portions configured to engage a housing on the switching device to prevent rotation of the switching element within the switching device. The switching element further includes protrusions configured to engage each side of the guide and to prevent longitudinal movement of the switching element within the housing.

A keyboard case for a tabled computer has a keyboard with a bezel plate having a matrix of apertures therein. A matrix of keycaps corresponds to the matrix of apertures in the bezel plate. The bezel plate has a web between the matrix of apertures comprising narrower lateral web between laterally proximate apertures and wider diagonal web between diagonally proximate apertures. Pockets extend from corners of each aperture into the diagonal web of the bezel plate. Tabs extend from corners of each keycap into corresponding pockets of the bezel plate to interlock the keycaps to the bezel plate.

An improved switching device includes a guide configured to reduce undesired movement of the switching element. The guide includes an upper portion configured to receive the switching element and a lower portion configured to receive a spring. The upper portion defines a seat to receive the switching element and includes at least one resilient tab to retain the switching element within the guide. The lower portion defines an opening in which the spring is positioned, where the spring is seated, in part, against the switching element and against the guide. The guide includes guide portions configured to engage a housing on the switching device to prevent rotation of the switching element within the switching device. The switching element further includes protrusions configured to engage each side of the guide and to prevent longitudinal movement of the switching element within the housing.

The present invention discloses a lifting key and a telescopic folding method. When a cover or handle is closed, the key is in a compressed state, and when the cover or handle of a device is opened, the cover or handle releases a traction mechanism, and the key drives a movable board to move by its own elastic force; after the movable board is displaced, a locked state between the movable board and an X balance frame is released, the X balance frame is unfolded under the force of a reset mechanism, and the key returns to a normal height; by slowly closing the cover or handle, the traction mechanism pulls the movable board under the action of the cover or handle, and the movable board moves back to return to an initial position. At this moment, the movable board is engaged with the X balance frame to make the key in the compressed state. The automatic lifting key of the present application can automatically expand the key when the cover is opened, and automatically contract the key when the cover is closed, which occupies a smaller space when the cover is closed, so as to make the notebook or Bluetooth keyboard thinner and easier to carry.