Example implementations relate to recessed keycaps. In an example, a recessed keycap includes a keyboard frame including recesses that extend at least partially through respective internal faces of the keyboard frame and a keycap including protrusions, where each protrusion of the protrusions is disposed at least partially within and in contact with a respective recess of the recesses to movably couple the keycap to the keyboard frame.

A keyboard is disclosed. The keyboard includes a keyboard housing and a switch assembly coupled to the keyboard housing. The switch assembly includes a switch body defining an interior volume, a collapsible dome positioned in the interior volume, an actuation member configured to actuate the collapsible dome in response to an actuation of the actuation member, and a cover coupled to the switch body. The cover retains the actuation member to the switch body. The keyboard also includes a flexible material coupled to the keyboard housing and extending over the actuation member.

An input mechanism is disclosed. The input mechanism includes a dome support structure defining an opening that extends through the dome support structure, a collapsible dome positioned in the opening and engaged with the dome support structure, and a cover member coupled to the dome support structure and covering the collapsible dome, thereby retaining the collapsible dome within the opening of the dome support structure.

The present invention provides a keyboard and a key structure thereof, including: a lower cover, a fixed plate, a plurality of keys, a flexible protection cover, and an upper cover. The fixed plate is fixedly disposed on the lower cover, the keys are fixedly disposed on the fixed plate, the hollow protrusion structure of the flexible protection cover is configured to partially cover a key pedestal of the key, and a key support shaft of the key is correspondingly configured at a position of the opening of the flexible protection cover. The upper cover is disposed on the sheet-like body of the flexible protection cover and is assembled to the lower cover, and the hollow protrusion structure is located in a recess of the upper cover.

A key structure and an assembly method thereof are provided. The key structure includes a base plate, a switch, two fixing bases, two movable members and a keycap. The base plate includes upper and bottom surfaces, and has a first accommodation hole and two second accommodation holes. The switch is disposed on the base plate through the first accommodation hole. The two fixing bases are disposed on the base plate respectively through the two second accommodation holes. Each fixing base has a guiding channel. The two movable members are disposed in the two guiding channels. The keycap is disposed on the switch and the two movable members. Each fixing base includes a first portion protruded from the upper surface and a second portion protruded from the bottom surface. The vertical projection area of the first portion is not greater than the vertical projection area of the second portion.

The present invention provides a keyboard and a key structure thereof, including: a lower cover, a fixed plate, a plurality of keys, a flexible protection cover, and an upper cover. The fixed plate is fixedly disposed on the lower cover, the keys are fixedly disposed on the fixed plate, the hollow protrusion structure of the flexible protection cover is configured to partially cover a key pedestal of the key, and a key support shaft of the key is correspondingly configured at a position of the opening of the flexible protection cover. The upper cover is disposed on the sheet-like body of the flexible protection cover and is assembled to the lower cover, and the hollow protrusion structure is located in a recess of the upper cover.

A keyboard device includes a base plate and a key structure. The key structure includes a keycap, a first connecting element, a second connecting element and a stabilizer bar. The first connecting element and the second connecting element are arranged between the base plate and the keycap and connected with the base plate and the keycap. The stabilizer bar is fixed on the first connecting element and the second connecting element. Since the stabilizer bar does not collide with the base plate to generate the unpleasant noise, the keyboard device of the present invention is capable of reducing the noise. Moreover, since the stabilizer bar is fixed on the first connecting element and the second connecting element, it is not necessary to install hooks corresponding to the stabilizer bar on the keycap and the base plate and the fabricating cost is reduced.

A laptop keyboard structure includes a keycap assembly and a key shaft assembly. The keycap assembly includes a keycap positioning plate, a plurality of stroke limiting structures and a plurality of keycaps. The stroke limiting structures are respectively disposed on the keycap positioning plate. The keycaps are respectively connected to the stroke limiting structure. The key shaft assembly, detachably assembled to one side of the keycap assembly, includes a circuit substrate and a plurality of key switches. The key switches are disposed on the circuit substrate and used to abut the keycap. A manufacturing method of the laptop keyboard structure is mainly to prepare the keycap assembly first, then to prepare the key shaft assembly, and finally to mount detachably the key shaft assembly to the keycap assembly by having the key switches respectively to penetrate the switch and further abut the keycap.

According to various embodiments, there is provided a key assembly including a housing including a sliding groove on an inner surface of the housing and further including a contact surface above the sliding groove; a plunger at least partially fitted into the housing, the plunger including a protrusion; a sound producing member provided at least partially in the sliding groove, the sound producing member configured to produce sound by impacting the contact surface; wherein the sound producing member includes a connecting portion obliquely extending to an abutting portion, the abutting portion arranged below the protrusion; wherein the plunger is displaceable downwards to deform the connecting portion using the protrusion, the deformed connecting portion being reboundable to cause impact the sound producing member to impact the contact surface.

The invention discloses a keyboard switch including a base, a cover covering the base to form a cavity, an upper guide core disposed in the cavity and an upper guide core limiting mechanism including a lower guide core elastomer, a lower guide core, a middle guide core spring and a middle guide core sequentially disposed on the base. The upper guide core and the middle guide core are connected through an upper guide core spring. The keyboard switch of the invention provides accuracy of the press-conduction displacement, accurate positioning of the conduction course, and adjustability of the press force, such that the press force becomes more balanced, and the keyboard switch is conducted when the guide core is pressed downwards. Thus, the overall press stability of the keyboard switch is improved.