Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
260 words
An oscillator, for soil or road tampers, comprising: a housing; two unbalanced shafts which are rotatably journalled in said housing and are parallel to each other; centrifugal weights respectively rigidly connected to said unbalanced shafts; a first gear rigidly connected with one of said unbalanced shafts; a second gear rotatably arranged on the other of said unbalanced shafts in such a way that it can also be shifted in the direction of rotation, said first and second gears being adapted to mesh to drive said unbalanced shafts in opposite directions; stop faces respectively provided on both sides of said second gear, said stop faces extending nearly radially as well as axially, and pointing in the same rotational direction; a slide piece arranged in, and axially shiftable in, said unbalanced shaft of said second gear; and two shift pins respectively anchored in said slide piece, one on each side of said second gear, for effecting said shifting of said second gear in the direction of rotation, one end of each of said shift pins projecting out of said unbalanced shaft of said second gear through associated longitudinal slots in said last-mentioned unbalanced shaft, said shift pins being axially spaced from one another in said slide piece by such a distance that one of said shift pins is always located just out of alignment with said stop face located on the same side of said second gear when the other of said shift pins, on the other side of said second gear, is in complete alignment with said stop face associated therewith.
Claim 2
Dependent Claim
260 words
An oscillator, for soil or road tampers, comprising: a housing; two unbalanced shafts which are rotatably journalled in said housing and are parallel to each other; centrifugal weights respectively rigidly connected to said unbalanced shafts; a first gear rigidly connected with one of said unbalanced shafts; a second gear rotatably arranged on the other of said unbalanced shafts in such a way that it can also be shifted in the direction of rotation, said first and second gears being adapted to mesh to drive said unbalanced shafts in opposite directions; stop faces respectively provided on both sides of said second gear, said stop faces extending nearly radially as well as axially, and pointing in the same rotational direction; a slide piece arranged in, and axially shiftable in, said unbalanced shaft of said second gear; and two shift pins respectively anchored in said slide piece, one on each side of said second gear, for effecting said shifting of said second gear in the direction of rotation, one end of each of said shift pins projecting out of said unbalanced shaft of said second gear through associated longitudinal slots in said last-mentioned unbalanced shaft, said shift pins being axially spaced from one another in said slide piece by such a distance that one of said shift pins is always located just out of alignment with said stop face located on the same side of said second gear when the other of said shift pins, on the other side of said second gear, is in complete alignment with said stop face associated therewith.
Claim 3
Dependent Claim
28 words
An oscillator according to claim 1, in which the angular positionings of said stop faces are respectively staggered with respect to said unbalanced shaft of said second gear.
Claim 4
Dependent Claim
28 words
An oscillator according to claim 1, in which the angular positionings of said shift pins are respectively staggered with respect to said unbalanced shaft of said second gear.
Claim 5
Dependent Claim
39 words
An oscillator according to claim 1, in which the angular positionings of said stop faces, and the angular positionings of said shift pins, are in each case respectively staggered with respect to said unbalanced shaft of said second gear.
Claim 6
Dependent Claim
34 words
An oscillator according to claim 2, in which said shift pins have the same angular positioning with respect to said unbalanced shaft of said second gear, and said stop faces are staggered by 180°.
Claim 7
Dependent Claim
37 words
An oscillator according to claim 5, which includes a ring segment respectively mounted on each side of said second gear and extending over approximately 180°, each ring segment having two ends which respectively form said stop faces.