Rotating direction change device for microtome
AssigneeLeica Microsystems Ltd., Shanghai
InventorGang Zhou
Life of this patent
Estimating the term…
Abstract
A rotating direction change device for a microtome includes: a first shaft arranged in a first fixed position; a first gear wheel non-rotatably mounted to the first shaft; a second shaft movable in a first direction; a second gear wheel non-rotatably mounted to the second shaft; a third shaft movable in a second direction; a third gear wheel non-rotatably mounted to the third shaft; and a first connection part connecting the second shaft and the third shaft such that the second gear wheel is constantly meshed with the third gear wheel, in which the second gear wheel can be driven by the first gear wheel directly or indirectly. Hence, the rotating direction change device has advantages of simple structure and low friction.
Claims15
A rotating direction change device for a microtome, comprising:
- a first shaft arranged in a first fixed position;
- a first gear wheel non-rotatably mounted to the first shaft;
- a second shaft movable in a first direction;
- a second gear wheel non-rotatably mounted to the second shaft;
- a third shaft movable in a second direction;
- a third gear wheel non-rotatably mounted to the third shaft;
- and
- a first connection part connecting the second shaft and the third shaft such that the second gear wheel is constantly meshed with the third gear wheel,
- wherein the second gear wheel is driven by the first gear wheel directly or indirectly;
- and
- wherein the first direction is perpendicular to the second direction.
A rotating direction change device for a microtome, comprising:
- a first shaft arranged in a first fixed position;
- a first gear wheel non-rotatably mounted to the first shaft;
- a second shaft movable in a first direction;
- a second gear wheel non-rotatably mounted to the second shaft;
- a third shaft movable in a second direction;
- a third gear wheel non-rotatably mounted to the third shaft;
- and
- a first connection part connecting the second shaft and the third shaft such that the second gear wheel is constantly meshed with the third gear wheel,
- wherein the second gear wheel is driven by the first gear wheel directly or indirectly;
- and
- wherein the rotating direction change device has a first meshing position and a second meshing position, when in the first meshing position, the third gear wheel is directly meshed with the first gear wheel, the second gear wheel is indirectly meshed with the first gear wheel through the third gear wheel;
- when in the second meshing position, the third gear wheel is separated from the first gear wheel, and the second gear wheel is directly meshed with the first gear wheel.
A rotating direction change device for a microtome, comprising:
- a first shaft arranged in a first fixed position;
- a first gear wheel non-rotatably mounted to the first shaft;
- a second shaft movable in a first direction;
- a second gear wheel non-rotatably mounted to the second shaft;
- a third shaft movable in a second direction;
- a third gear wheel non-rotatably mounted to the third shaft;
- and
- a first connection part connecting the second shaft and the third shaft such that the second gear wheel is constantly meshed with the third gear wheel,
- wherein the second gear wheel is driven by the first gear wheel directly or indirectly;
- and
- further comprising a base, the base defining a first hole, a first slot and a second slot, wherein the first shaft is fitted in the first hole, the first slot extends in the first direction, the second shaft is movably fitted in the first slot, the second slot extends in the second direction and the third shaft is movably fitted in the second slot.
Dependencies are inferred from the claim text.