A balance bar connecting structure and a satellite shaft structure for the same, wherein the balance bar connecting structure comprises two satellite shaft modules and a balance bar member; the two satellite shaft modules each include a base body and a satellite shaft member; the balance bar member has a connecting bar section, two linkage sections, and two sliding sections respectively bent relative to each other from the two linkage sections; and the connecting bar section is pivotally connected between the two base bodies, and the two linkage sections face the two satellite shaft members, respectively, so that the two sliding sections are cooperatively connected to the two satellite shaft members; wherein the two satellite shaft members are each provided with a sliding groove so as to allow the two sliding sections to slide transversely in the sliding grooves, respectively.

A keyboard including: a key top; a slide member that is attached to the key top, slides up and down, and presses a contact via an elastic member; a non-slide member that is attached to the key top, and never move up and down; supporters that support the slide member and the non-slide member, respectively; wherein the slide member is restrained by the key top in a first direction, and is movable in a second direction vertical to the first direction, and the non-slide member is arranged diagonally with the slide member, is movable in the first direction, and is restrained by the key top in the second direction.

A keyboard stabilizer is adapted to reduce the clanking and rattling sounds that it makes during operation. The invention takes advantage of the surprising result that adhesive, in proper amounts, can act as a sound dampener. First, a circumferential score is cut near each tip of the wire. Second, adhesive is applied to several critical points on the housings, stems, and wire. Third, lubricant is applied to several critical points on the housings, stems, and wire. The stabilizer is then assembled from the prepared parts.

A user interface for a home appliance comprises a circuit board having at least one mechanically actuated switch having a first area. The user interface further comprises an input interface having at least one button defining a second area, greater than the first area, and having an actuator corresponding to the switch. The button is coupled to at least one of the circuit board or the input interface for relative movement between an actuation position, where the actuator actuates the switch, and a non-actuation position, where the actuator does not actuate the switch.

An interface device includes a movable button connected to a frame structure by resilient structures positioned laterally between the button and the frame structure. Multiple layers or diaphragms of material can be used to make the button, frame, and resilient structures. Movement of the button can trigger a switch or sensor in a manner allowing an electronic device to detect interaction with the button. The interface device can be implemented in an electronic device such as a keyboard that has a low number of parts yet also providing tactile, stabilized key travel, support for various sensor or switch types for the keys, and, in some cases, haptic feedback.

A movement mechanism includes: a case; a moving portion movable with respect to the case; and a support member that links the case and moving portion together and supports the moving portion so as to be movable with respect to the case. The support member has a plurality of pairs of first support portions and a plurality of pairs of second support portions, each of which is elastically deformable, has a plate-like shape, and extends between the case and the moving portion. The first support portions and second support portions are respectively placed on a first side and a second side in a moving direction of the moving portion so as to be symmetric with respect to the moving portion in plan view.

A keyboard device includes a substrate, a keycap on the substrate, a first link member connected between the substrate and the keycap and is adjacent to the first side portion of the keycap, and a second link member connected between the substrate and the keycap and is adjacent to the second side portion of the keycap. The two first short swing arms of the first link member are respectively connected to two ends of the first pivot arm of the first link member. A length of each first short swing arm is less than half of a length of the first pivot arm. The two second short swing arms of the second link member are respectively connected to two ends of the second pivot arm of the second link member. A length of each second short swing arm is less than half of a length of the second pivot arm.

Buttons (41A, 41B) have a button moving part (42) disposed in front of a circuit board (51) and allowed to move in a front-back direction, and guided parts (42e) moving in conjunction with the button moving part (42). The buttons (41A, 41B) cause the button moving part (42) to operate a switch (52) of the circuit board (51). Guide parts (21E, 21F) are disposed along the guided parts (42e) and restrict the direction in which the button moving part (42) moves. The guide parts (21E, 21F) and the guided parts (42e) have portions located back of a front surface (51a) of the circuit board (51). This structure effectively prevents the buttons from tilting when they are operated.

A backlit keyboard includes key switches and a backlight module. The backlight module includes a light guide plate, a reflecting surface, and at least one light-emitting device. The light guide plate is provided with light-guiding dots disposed on a bottom surface thereof. A light-shielding layer disposed on the light guide plate has a light-shielding portion and a light-transmitting portion corresponding to at least one of the key switches. The reflecting surface faces the bottom surface of the light guide plate, and a pattern at least partially overlaps the light-shielding portion. A first light-emitting device and a second light-emitting device are disposed in an opening of the light guide plate, and the first light-emitting device and the second light-emitting device face respective sidewalls of the opening. The first light-emitting device is located underneath the light-shielding portion.

A key structure includes a supporting plate, a keycap, a scissors-type connecting element, a movable element and a coupling structure. The keycap is disposed over the supporting plate. The coupling structure is connected with the scissors-type connecting element and the movable element. For operating the key structure, the cooperation of the movable element and the coupling structure allows the keycap to be at a higher first height. Consequently, the tactile feel of depressing the key structure is enhanced. Moreover, the cooperation of the movable element and the coupling structure can lower the height of the keycap. Consequently, the key structure has a slim appearance.