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US 8,573,847 B2Granted
Linear motion guide unit
AssigneeWon St Co., Ltd.
InventorTaek Won Lee
Life of this patent
Estimating the term…
Abstract
A linear motion guide unit is provided, which is capable of preventing the variation in the position of a roller cage assembly caused by sliding motions of the roller cage assembly between a first guide rail and a second guide rail, without reducing the number of rollers. The linear motion guide unit includes first and second guide rails having track portions formed concavedly to have a V-shaped section on the faces opposing each other; and a roller cage assembly disposed between the first and second guide rails and having a plurality of rollers located between the first and second guide rails and ring-shaped pinions adapted to surround the rollers.
Claims16
A linear motion guide unit comprising:
- first and second guide rails having track portions formed concavedly to have a V-shaped section on the faces opposing each other;
- and
- a roller cage assembly disposed between the first and second guide rails and having a plurality of rollers located between the first and second guide rails and at least one pinion having a ring shape, each pinion configured to surround one of the rollers.
A linear motion guide unit comprising:
- first and second guide rails having track portions formed concavedly to have a V-shaped section on the faces opposing each other;
- and
- a roller cage assembly disposed between the first and second guide rails and having a plurality of rollers located between the first and second guide rails and pinions adapted to surround the rollers,
- wherein the roller cage assembly includes a cage plate disposed between the first and second guide rails and having a plurality of roller installation openings formed spaced apart from one another in the direction of the length thereof so as to rotatably insert the plurality of rollers thereinto, the plurality of rollers adapted to be rotatably inserted into the plurality of roller installation openings, and the pinions rotatably disposed on the cage plate in such a manner as to be rotated in a direction parallel to the thickness direction thereof in a rotary center thereof, while being engaged at one side thereof in the width direction thereof with the first guide rail and engaged at the other side thereof with the second guide rail, and
- wherein the cage plate is formed by coupling cage plate members on which a plurality of roller installation holes constituting the plurality of roller installation openings are formed, any one or more of the cage plate members having pinion installation grooves formed concavedly to surround one or more of the roller installation holes in such a manner as to have an inside periphery surrounding the roller installation hole and have an outside periphery opened partially at both sides thereof, and each of the pinions is rotatably mounted in the pinion installation grooves in such a manner as to be protruded from both sides in a width direction thereof, such that one side of the protruded portions of each pinion is engaged with the first guide rail and the other side thereof is engaged with the second guide rail.
2 more elements
A linear motion guide unit comprising:
- first and second guide rails having track portions formed concavedly to have a V-shaped section on the faces opposing each other;
- and
- a roller cage assembly disposed between the first and second guide rails and having a plurality of rollers located between the first and second guide rails and pinions adapted to surround the rollers,
- wherein the rollers are provided plurality in number, and the pinions are provided one or more in number so as to surround one or more of the rollers,
- wherein the roller cage assembly includes a cage plate disposed between the first and second guide rails and having a plurality of roller installation openings formed spaced apart from one another in the direction of the length thereof so as to rotatably insert the plurality of rollers thereinto, the plurality of rollers adapted to be rotatably inserted into the plurality of roller installation openings, and the pinions rotatably disposed on the cage plate in such a manner as to be rotated in a direction parallel to the thickness direction thereof in a rotary center thereof, while being engaged at one side thereof in the width direction thereof with the first guide rail and engaged at the other side thereof with the second guide rail, and
- wherein the cage plate is formed by coupling cage plate members on which a plurality of roller installation holes constituting the plurality of roller installation openings are formed, any one or more of the cage plate members having pinion installation grooves formed concavedly to surround one or more of the roller installation holes in such a manner as to have an inside periphery surrounding the roller installation hole and have an outside periphery opened partially at both sides thereof, and each of the pinions is rotatably mounted in the pinion installation grooves in such a manner as to be protruded from both sides in a width direction thereof, such that one side of the protruded portions of each pinion is engaged with the first guide rail and the other side thereof is engaged with the second guide rail.
3 more elements
Dependencies are inferred from the claim text.