A handle ( 10 ) for controlling a machine, has a largely vertical shaft ( 12 ) forming a grip part ( 11 ) and has an upper end forming a receptacle ( 14 ) that holds switch units ( 15 - 17 ) and a lower end forming a hand rest ( 20 ). The hand rest can be adjusted along the shaft ( 12 ) and can be detachably clamped to the shaft. The hand rest ( 20 ) comprises front and rear rest part ( 26, 27 ) that are pivotally, or swivelably, connected to one another. To prevent unintentional opening of the hand rest ( 20 ) by axial pressure on the latter, the two rest parts ( 26, 27 ) can be moved relative to one another in the axial direction to effect a locking and unlocking of their relative pivotabilities.
1. A handle grip for driving a machine, comprising:
a shaft that extends along a primarily vertical axis and that forms a grip part;
a receptacle that lies at an upper end of said shaft and that holds switch units that face in a forward and upward direction; and
a hand rest at a lower end of said shaft with said hand rest having front and rear rest parts,
wherein said hand rest has front and rear rest parts that are radially and axially clampable to the shaft and pivotally connected to one another, and said rest parts are moveable parallel to said axis relative to one another to effect a radial and axial locking and unlocking of their pivotal connection, and
wherein the pivotal rear rest part comprises:
a lower element that is swivelably coupled to the front rest part, thereby providing the radial locking of the pivotal connection, and
an upper element forming a region of a hand rest surface and being axially movable with respect to the lower element, thereby providing the axial locking of the pivotal connection.
2. The handle grip according to claim 1 , characterized in that the upper element of the swivelable rear rest part has axial lock bars that axially engage in undercuts on the front rest part.
3. The handle grip according to claim 1 , characterized in that the lower element of the rear rest part is connected via a swivel axis to a guide sleeve of the front rest part facing away from the rest surface.
4. The handle grip according to claim 1 , characterized in that the upper element of the rear rest part is provided with an axial oblong hole through which passes the swivel axis.
5. The handle grip according to claim 4 , characterized in that the upper element of the rear rest part is provided with axial guide webs, which include the oblong hole and which are in each case arranged between the lower element of the rear rest part and the guide sleeve of the front rest part.
6. The handle grip according to claim 3 , characterized in that the upper element and the lower element of the swivelable rear rest part are axially guided and connected in a swivelable manner by inter-engaging, axially running guide strips and guide grooves.
7. The handle grip according to claim 1 , characterized in that the upper element of the rear receptacle part and the guide sleeve of the front receptacle part directly underneath the rest surface are provided with axial surfaces, which arc provided with the lock bar and the undercut.
8. The handle grip according to claim 1 , characterized in that the shaft in the region of the displacably retained hand rest is provided at one or two diametric regions with a recess, in which one of the two rest parts of the hand rest engages, an edge of the recess being provided with a toothed section on which engages a damping edge of the lower element of the swivelable rear rest part.
9. The handle grip according to claim 8 , characterized in that the clamping edge of the lower element of the swivelable rear rest part is provided with a counter- toothed section.
10. The handle grip according to claim 8 , characterized in that the clamping edge runs in a swivel direction eccentrically and in a self-locking manner with respect to the swivel axis.
11. The handle grip according to claim 8 , characterized in that the lower element of the swivelable rear rest part is provided with a radially inwardly aligned boss which includes the toothed clamping edge and which forms a counter surface to a guide surface of a second edge of the recess and is provided with a hole for the swivel axis.
12. The handle grip according to claim 1 , characterized in that the hand rest is symmetrical with respect to a longitudinal mid plane of the grip part.
13. The handle grip according to claim 1 , characterized in that the grip part is formed by two semi-shells.