Percussion Hammer and/or Drill Hammer Comprising a Handle Which Can be Guided in a Linear Manner
The invention relates to a percussion hammer and/or a drill hammer comprising a hammer housing, a handle which is preferably embodied as a handle cover and which can be displaced in a working direction (A) in relation to the hammer housing and which surrounds at least one part of the hammer housing. The hammer also comprises a guiding device which is used to guide the handle cover in a linear manner in relation to the hammer housing. The hammer is characterized in that the guiding device comprises a rolling body device which is active between the hammer housing and the handle cover. The rolling body device ensures that the handle cover is guided in a stable manner, with respect to tilting, in relation to the hammer housing.
1 . A percussion and/or drill hammer, comprising:
a hammer housing in which at least a part of a drive mechanism and a percussion mechanism are situated,
a handle device that is capable of movement relative to the hammer housing in a working direction (A), and on which at least one handle is provided, and
a guide device for the linear guiding of the handle device relative to the hammer housing,
wherein the guide device has a rolling element device that is effective between the hammer housing and the handle device, in which minimum friction values can be achieved that permit a good relative movement between the handle device and the hammer housing.
2 . The percussion and/or drill hammer as recited in claim 1 , wherein the guide device is provided laterally on the hammer housing in relation to the working direction (A).
3 . The percussion and/or drill hammer as recited in claim 1 , wherein
the handle device surrounds the hammer housing flat a distance, so that an intermediate space is formed, and in that
the guide device is situated in the intermediate space between the hammer housing and the handle device.
4 . The percussion and/or drill hammer as recited in claim 1 ,
wherein the rolling element device ensures a defined spring characteristic transverse to the working direction (A) in such a way that the handle device is capable of movement relative to the hammer housing transverse to the working direction (A).
5 . The percussion and/or drill hammer as recited in claim 1 wherein the rolling element device has rolling elements that are fastened to the handle device so as to be capable of rotation, and to which guide tracks provided on the outside of the hammer housing are allocated, or that are fastened to the hammer housing so as to be capable of rotation and to which guide tracks provided on the inside of the handle device ( 1 ).
6 . The percussion and/or drill hammer as recited in claim 5 , wherein the roller elements are each held against the guide tracks with a defined force by a spring device or by the elastic effect of the handle device.
7 . The percussion and/or drill hammer as recited in claim 5 , wherein the rolling elements have a defined spring characteristic, and thus a deformability in their radial direction.
8 . The percussion and/or drill hammer as recited in claim 1 wherein a longitudinal spring device is provided that acts in the working direction (A) between the hammer housing and the handle device.
9 . The percussion and/or drill hammer as recited in claim 1 wherein the extension of the hammer housing in the working direction (A) is greater than in a direction transverse to the working direction (A).
10 . The percussion and/or drill hammer as recited in claim 1 wherein at least in a partial area of the housing extending in the working direction (A), the hammer housing has an outer cross-sectional shape that does not change.
11 . The percussion and/or drill hammer as recited in claim 5 wherein the guide tracks are provided in the partial area of the housing.
12 . The percussion and/or drill hammer as recited in claim 10 , wherein the percussion mechanism is situated in the partial area of the housing.
13 . The percussion and/or drill hammer as recited in claim 10 , wherein the outer cross-sectional shape corresponds essentially to a prismatic shape, and in that at least one of the rolling elements grasps an edge of the prismatic shape.
14 . The percussion and/or drill hammer as recited in claim 1 wherein the handle device is fashioned as a handle cover that surrounds at least a part of the hammer housing.