Bearing unit for sliding device

Claim 2

A bearing unit for a sliding device comprising a carriage unit adapted to slide along a guide member characterised in that said unit comprises a bearing carriage, guiding surface means including a plurality of guiding surfaces being formed on said bearing carriage so as not being intersect each other, and roller means including a plurality of roller units having a plurality of rolls endlessly connected to other and being provided on said guiding surface means such that said rolls of the roller units are rotatably contacted with said guiding surfaces of the carriage and such that each of said roller units is not in contact with another roller unit.

Claim 3

A unit as claimed in claim 1, wherein said guiding surface means comprises a first guiding slot having a flat plane and endlessly provided on one pair of diagonally opposing edge portions of a bearing carriage and on both end portions of said bearing unit body, and a second guiding slot having a flat plane and endlessly provided on the other diagonally opposing edge portions and the both end portions of said bearing unit body, and wherein said roller means comprises a first roller unit having a plurality of rolls endlessly connected to each of the rolls and slidably arranged in said first guiding slot and a second roller unit having a plurality of rolls endlessly connected to each of the rolls and slidably arranged in said second guiding slot.

Claim 4

A unit as claimed in claim 2, wherein the depths of said first and second guiding slots offer at each end of the carriage so that the first and second roller units are staggered longitudinally one with respect to the others

Claim 5

A unit as claimed in any preceding claim, wherein said guiding surface means comprises a first guiding slot having a flat plane end endlessly provided on one pair of opposing side surface portions and on both end portions of said bearing unit body, and a second guiding slot having a flat plane end endlessly provided on the other opposing side surface portions and the both end portions of said bearing unit body, and wherein said roller means comprises a first roller unit having a plurality of rolls endlessly connected to each of the rolls and slidably arranged in said first guiding slot and a second roller unit having a plurality of rolls endlessly connected to each of the rolls and slidably arranged in said second guiding slot.

Claim 6

A unit as claimed in claim 4, wherein any one of he depths of said first and second guiding slots is greater than that of the other guiding slot at any one of end portions of said bearing unit body:

Claim 7

A sliding device comprising a slide guiding member for guiding sliding motion and including a guiding surface, and a unit for sliding along said side guiding member and including a sliding unit body and a bearing unit mounted on said sliding unit body and located between said guiding member and said sliding unit body, wherein said bearing unit comprising a bearing unit body mounted on said sliding unit body, guiding surface means including a plurality of guiding surfaces being formed on said bearing unit body so as not being intersected each other and such that at least a portion of the guiding surfaces of the guiding surface means being opposed to said guiding surface of said sliding member and, roller means having a plurality of roller including a plurality of rolls endlessly connected to each of the rolls and being provided on said guiding surface means such that said rolls of the roller units are rotatably connected with said guiding surfaces and each of said roller units are not connected with other roller units.

Claim 8

A sliding device comprising a slide guiding member for guiding sliding motion and including a guiding surface, and a unit for sliding along said side guiding member and including a sliding unit body and a bearing unit mounted on said sliding unit body and located between said guiding member and said sliding unit body, wherein said bearing unit comprising a bearing unit body mounted on said sliding unit body, guiding surface means including a plurality of guiding surfaces being formed on said bearing unit body so as not being intersected each other and such that at least a portion of the guiding surfaces of the guiding surface means being opposed to said guiding surface of said sliding member and, roller means having a plurality of roller including a plurality of rolls endlessly connected to each of the rolls and being provided on said guiding surface means such that said rolls of the roller units are rotatably connected with said guiding surfaces and each of said roller units are not connected with other roller units.

Claim 9

A sliding device as claimed in claim 6, wherein said sliding unit comprises first bearing unit which is positioned at one side of said slide guiding member and a second bearing unit which is positioned at other side of said slide guiding member, said guiding surface means comprises a flat plane surfaces of a first guiding slot provided on said first bearing unit and a flat plane surfaces of a second guiding slot provided on said second bearing unit.

Claim 10

A sliding device as claimed in claim 6, wherein said sliding unit comprises a first bearing unit having a bearing unit body, guiding surface means having a first guiding slot having a flat plane and endlessly provided on one pair of opposing side surface portions and on both end portions of bearing unit body, and a second guiding slot having a flat plane and endlessly provided on the other opposing side surface portions and the both end portions of said bearing unit body, and roller means comprising a first roller unit having a plurality of rolls endlessly connected to each of the rolls and rotatably arranged in said first guiding slot and a second roller unit having a plurality of rolls endlessly connected to each of the rolls and rotatably arranged in said second guiding slot, and a second bearing unit including a third roller unit provided between a flat surface of said sliding unit body and a flat surface of said slide guiding member.

Claim 11

A sliding device as claimed in claim 6, wherein said guiding surface means comprises a first guiding slot having a flat plane and endlessly provided on one pair of diagonally opposing edge portions and on both end portions of said bearing unit body, and a second guiding slot having a flat plane and endlessly povided on the other diagonally opposing edge portions and the both end portions of said bearing unit body, and wherein said roller means comprises a first roller unit having a plurality of rolls endlessly connected to each of the rolls and slidably arranged in said first guiding slot and a second roller unit having a plurality of rolls endless connected to each of the rolls and slidably arranged in said second guiding slot.

Claim 12

A sliding device as claimed in claim 9, wherein any one of the depths of said first and second guiding slots are greater than that of the other guiding slot at any one of end portions of said bearing unit body.

Claim 13

A sliding device as claimed in claim 6, wherein said guiding surface means comprises a first guiding slot having a flat plane and endlessly provided on one pair of opposing side surface portions and on both end portions of said bearing unit body, and a second guiding slot having a flat plane and endlessly provided on the other opposing side surface portions and the both end portions of said bearing unit body, and wherein roller means comprises a first roller unit having a plurality of rolls endlessly connected to each of the rolls and slidably arranged in said second guiding slot.

Claim 14

A sliding device as claimed in claim 11, wherein any one of the depths of said first and second guiding slots is greater than that of the other guiding slot at any one of end portions of said bearing unit body.