Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
296 words
In a roller bearing for an infinite rectillinear motion including, a long track rail in which a track face is formed on the outside face thereof, a casing which is mounted astride said track rail, in which a track face is formed at a location opposite to the track face of said track rail, and a number of rollers inserted between the track face of said track rail and the track face of said casing, said rollers being arranged on the basis of a parallel roller type, a return passage for said rollers being provided in said casing, and side plates wherein direction change passages are formed being fixed to the longitudinally opposite end portions of said casing, said direction change passages connecting said track face with said return passage, the roller bearing for an infinite rectilinear motion is characterized in that, the longitudinal axis of each return passage for rollers substantially extends on a horixontal plane including the longitudinal axis of the load bearing trackway that is in turn formed between the track face of the track rail and that of the casing, means defining shifting passages being formed at least in a pair of rows of rollers at the connection portions of said direction change passages with said track faces, so that said rollers may be moved away from the track rail, without changing an angle formed by the axis of the roller and a plane in the sliding direction, viewed in the sliding direction of the bearing; and following each of said shifting passages, means defining a twisting passage being formed, so that in the twisting passage, an angle formed by the axis of the roller and the plane in the sliding direction, viewed in the sliding direction of the bearing, may change.
Claim 2
Dependent Claim
296 words
In a roller bearing for an infinite rectillinear motion including, a long track rail in which a track face is formed on the outside face thereof, a casing which is mounted astride said track rail, in which a track face is formed at a location opposite to the track face of said track rail, and a number of rollers inserted between the track face of said track rail and the track face of said casing, said rollers being arranged on the basis of a parallel roller type, a return passage for said rollers being provided in said casing, and side plates wherein direction change passages are formed being fixed to the longitudinally opposite end portions of said casing, said direction change passages connecting said track face with said return passage, the roller bearing for an infinite rectilinear motion is characterized in that, the longitudinal axis of each return passage for rollers substantially extends on a horixontal plane including the longitudinal axis of the load bearing trackway that is in turn formed between the track face of the track rail and that of the casing, means defining shifting passages being formed at least in a pair of rows of rollers at the connection portions of said direction change passages with said track faces, so that said rollers may be moved away from the track rail, without changing an angle formed by the axis of the roller and a plane in the sliding direction, viewed in the sliding direction of the bearing; and following each of said shifting passages, means defining a twisting passage being formed, so that in the twisting passage, an angle formed by the axis of the roller and the plane in the sliding direction, viewed in the sliding direction of the bearing, may change.
Claim 3
Dependent Claim
67 words
A roller bearing for an infinite rectilinear motion according to claim 1, wherein a twisting passage of said direction change passage formed in the side plate is twisted, while at the same time is gradually departing from the track rail within such a distance equal to half the diameter at most of the roller on the horizontal plane including the longitudinal axis of the load bearing trackway.