Abstract: A keyswitch for keyboard of notebook computer comprises a keycap; a base arranged below the keycap and having two protuberances thereon; and a lever mechanism. The lever mechanism has a plurality of top ends connected to the keycap and a plurality of lower ends connected to the base. The lever mechanism has two projections located on lower lateral edges thereof and corresponding to the protuberances. During a downward stroke of the keycap, the projections of the lever mechanism will be in contact with the protuberances, whereby the stability of the keyswitch will be enhanced.

Abstract: The present invention relates to a stroke-limited key structure and a keyboard including the key. The key structure includes a base, a scissors-shaped member, and a cap. The scissors-shaped frame is disposed on the base, and the cap is disposed on the scissors-shaped member. The scissors-shaped frame includes a first frame and a second frame that is rotatably coupled to the first frame. The first and second frames include a first protrusion and a second protrusion. The stroke of the key is limited by using the engagement between the first and second protrusions.

Abstract: A protection case includes a first part having an open top so as to receive the body of the lock therein and an aperture is defined through a wall of the first part and located in alignment with the key hole of the lock. An opening is defined through a bottom of the first part so as to enclose the digit rings of the lock. A second part is securely mounted on the top of the body and includes a first hole through which the shackle of the lock extends, and a second hole which is located in alignment with the locking hole.

Abstract: A keyswitch for keyboard of notebook computer comprises a keycap; a base arranged below the keycap and having two protuberances thereon; and a lever mechanism. The lever mechanism has a plurality of top ends connected to the keycap and a plurality of lower ends connected to the base. The lever mechanism has two projections located on lower lateral edges thereof and corresponding to the protuberances. During a downward stroke of the keycap, the projections of the lever mechanism will be in contact with the protuberances, whereby the stability of the keyswitch will be enhanced.

Abstract: A low-noise key switch for computer appliances is disclosed. An embodiment of the key switch includes a cap at least one elastic element, a supporter, a switch, and a base. The cap has a top surface, a bottom surface, and a bottom edge surface. The elastic element is disposed on the bottom edge surface. The supporter supports the cap to perform a movement relative to the base. The switch, responsive to the movement of the cap, selectively turns on. When the cap moves toward the base, the elastic element approaches the base prior to the cap hitting the base. Therefore, the impact of the cap against the base is absorbed by the elastic element leading to the reduction of noise when the key switch is activated.

Abstract: In accordance with the present invention, a low-noise key switch for computer appliances is disclosed. An embodiment of the key switch includes a cap, at least one elastic element, a supporter, a switch, and a base. The cap has a top surface, a bottom surface, and a bottom edge surface. The elastic element is disposed on the bottom edge surface. The supporter supports the cap to perform a movement relative to the base. The switch, responsive to the movement of the cap, selectively turns on. When the cap moves toward the base, the elastic element approaches the base prior to the cap hits the base. Therefore, the impact of the cap toward the base is absorbed by the elastic element leading to the reduction of noise when the key switch is activated.

Abstract: The present invention relates to a stroke-limited key structure and a keyboard including the key. The key structure includes a base, a scissors-shaped member, and a cap. The scissors-shaped frame is disposed on the base, and the cap is disposed on the scissors-shaped member. The scissors-shaped frame includes a first frame and a second frame that is rotatably coupled to the first frame. The first and second frames include a first protrusion and a second protrusion. The stroke of the key is limited by using the engagement between the first and second protrusions.