SELECTOR LEVER FOR SPEED CHANGE TRANSMISSION
A selector lever is provided for speed change transmissions, which is movable into various lever positions to select various operating and driving steps or gears. The selector lever includes, but is not limited to a handle at one end, an unlocking bar, which is movable in the extension direction, is received in the selector lever, the unlocking bar being operationally linked to a locking mechanism so that in a first position, a movement of the selector lever into at least one lever position is blocked and, in a second position, it is released, the unlocking bar being pre-tensioned in its first position by a pre-tension force; the selector lever has a sliding ramp coupled to an end section of the unlocking bar, which is movable by manual actuation of an unlocking element so that the unlocking bar is movable into its second position by the end section sliding down on the sliding ramp against the pre-tension force. The end section of the unlocking bar coupled to the sliding ramp is provided with a second material different from a first material of the remaining unlocking bar, which is lower friction than the first material with respect to a friction pairing with the handle.
1 . A selector lever for speed change transmissions, which is movable into lever positions to select various operating and driving steps or gears, comprising:
a handle at one end;
an unlocking bar that is movable in an extension direction and received in the selector lever, the unlocking bar operationally linked to a locking mechanism so that in a first position, a movement of the selector lever into at least one lever position is blocked and, in a second position, the unlocking bar is released, the unlocking bar is pre-tensioned by a pre-tension force in the first position; and
a sliding ramp of the selector lever that is coupled to an end section of the unlocking, and movable by manual actuation of an unlocking element so that the unlocking bar is movable into the second position by sliding of the end section down the sliding ramp against the pre-tension force, the sliding ramp coupled to the end section of the unlocking bar having with a second material that is different from a first material of a remaining portion of the unlocking bar, and which is lower-friction than the first material with respect to a friction pairing with the handle.
2 . The selector lever according to claim 1 , wherein the unlocking bar is implemented in one piece.
3 . The selector lever according to claim 1 , wherein the unlocking bar is implemented in two pieces, the end section of the unlocking bar, which is coupled to the sliding ramp, formed by an end piece comprising the second material.
4 . The selector lever according to claim 3 , wherein the end piece can be placed on the unlocking bar.
5 . The selector lever according to claim 4 , wherein the end piece is implemented in a form of a conically tapering cap.
6 . The selector lever according to claim 3 , wherein the unlocking bar is received in a lever tube, a play of the unlocking bar within the lever tube reduced by the end piece of the unlocking bar.
7 . The selector lever according to one of claim 3 , wherein the unlocking bar is received in a lever tube, the end piece of the unlocking bar implemented so that the unlocking bar exclusively has a touch contact to the lever tube via the end piece.
8 . The selector lever according to claim 7 , wherein the second material of the end section of the unlocking bar, which is coupled to the sliding ramp, is a lower friction than the first material with respect to a friction pairing with the lever tube.
9 . The selector lever according to one of claim 1 , wherein the lower friction second material is polyoxymethylene.
10 . The selector lever according to one of claim 1 , wherein the unlocking element is an unlocking button that is mounted to move in the handle.
11 . The selector lever according to claim 10 , wherein the sliding ramp is formed by an insert part mounted to move in the handle, the insert part adapted to move by the unlocking button so that the unlocking bar can be brought into the second position.
12 . The selector lever according to claim 11 , wherein at least a section of the insert part forming the sliding ramp comprises the lower-friction second material.