Key for a keyboard
AssigneeRafi GmbH & Co. Elektrotechnische Spezialfabrik
InventorHans Richter
Life of this patent
Estimating the term…
Abstract
A key for a keyboard consisting of a base part (1) with a recess (7), an intermediate part (2), a key head (3) and an elastic return part (4). The cylindrical intermediate part (2) is arranged between the bottom part (14) of the key head (3) and the recess (7), with the intermediate part (2) moving into the recess (7) when the key head (3) is pressed. The intermediate part (2) is in a screw-like engagement with the bottom part (14) of the key head (3) and with the recess (7) in each case, with the one engagement running in the opposite direction to the other engagement.
Claims12
A key assembly for a keyboard, the key assembly comprising a key head (3) having a bottom cylindrical part (14), a base part (1) having a recess (7) therein, and an elastically deformable return part (4) disposed in the recess and arranged between said key head and said base part, the bottom cylindrical part (14) of said key head (3) being movable axially into the recess (7) when said key head (3) is pressed down against a force of said return part (4), and a cylindrical intermediate part (2) arranged between the bottom cylindrical part (14) of said key head (3) and a wall of the base part recess (7), said cylindrical intermediate part (2) being movable axially and rotatively into the recess (7) when said key head (3) is pressed, the bottom cylindrical part (14) of said key head (3) and said intermediate part (2) engaging rotatively, and said intermediate part (2) and the base part recess wall (7) engaging rotatively, in a screw-like fashion with one rotative engagement running in an opposite direction to the other rotative engagement.
Dependencies are inferred from the claim text.