Keyboard input device
AssigneeAlps Electric Co., Ltd.
InventorHideki Ito
Life of this patent
Estimating the term…
Abstract
A keyboard input device equipped with a pointing device featuring excellent water-proof performance and is capable of highly precisely detecting the angle of tilt and the direction of tilt of the operation body of the pointing device. The pointing device has a cylindrical operation body erected on a base. When the base is mounted on the back surface side of the support plate, the operation body protrudes toward the key switch side penetrating through the support plate. The base is mounted on the support plate forming a gap of a size A relative to the support plate, and a water-proof rubber of a predetermined thickness is arranged in the gap of the size A to prevent the water from entering the base side of the pointing device.
Claims7
A keyboard input device comprising a plurality of key switches, a support plate for supporting the key switches maintaining the freedom of operation thereof, and a pointing device mounted on the back surface side of the support plate, the pointing device having a plate-like base, a cylindrical operation body erected on the base and a plurality of sensors arranged on one surface of the base to detect the direction of tilt and the angle of tilt of the operation body;
- the pointing device permitting an end of the operation body to protrude toward the side of the key switches penetrating through the support plate, and having a water-proof rubber of a predetermined thickness arranged between the base and the support plate;
- wherein
- when the base is mounted on the support plate with the water-proof rubber being held between the base and the support plate, the water-proof rubber is pushed on the back surface side thereof onto the base and is intimately adhered on the front surface thereof onto the support plate.
Dependencies are inferred from the claim text.