Title: Rod shaped hand-tool

• Summary
• Claims
• Description
• View all

Abstract: A rod-shaped, manually operable or controllable handpiece is disclosed which e.g., comprises an annular actuating member positioned in a rod-shaped handle portion having actuatable means and a casing for enclosing the actuatable means with which the actuating member is in operative connection. The actuating member comprises at least one ring or disc movable between two positions substantially perpendicularly to the longitudinal axis of the casing, the largest diameter or corresponding external dimensions of said ring or disc being larger than the height or thickness hereof, the axis thereof in said central position being parallel to the longitudinal axis of the casing, and the external side thereof in the central position flushing with or extending equally outside the surface of the casing and whereby the axis of the ring in the outer position is displaced parallel to or forms an acute angle with the axis of the casing. Hereby a considerable reduction of the space necessary for the actuating member in the handle of the handpiece is obtained. It is an additional advantage that the operator obtains equal actuating of the actuating member by equal compressive stress, independently of the location of the stress on the ring.


Do you think this is a good invention? Vote now: