Patent ID: 7150564

Claim:
A structure of a liner sliding rail circulating device, comprising: a rail having an “H” shaped cross-section and sliding paths provided at two sides thereof; a sliding base provided with rolling elements inside and an aperture at an interior wall for receiving the rolling elements that are rolling between the sliding paths and the aperture of the sliding rail in order to drive the sliding base to operate on the rail; two end members fastened to two ends of the aperture to serve as a circulative turning path for the rolling elements; wherein each of the end members comprises a left end block, a middle end block, a right end block, a middle sustainer, a lower sustainer, a chain sleeve and a circulating partition, the middle sustainer being provided with extruding ribs at two sides, the left and right end blocks being provided with clamping frames for claming the ribs, engaging grooves being provided at the left and right end blocks of different height for receiving an upper sustainer, the middle sustainer and the lower sustainer, the upper sustainer being provided at a top of a hollow of the sliding base, the middle sustainer and the lower sustainer being provided at two sides of the hollow, anti-dust strips being adhered to a lower rim of the upper sustainer, insertion pieces being formed at sides of the upper sustainer, the middle sustainer and the lower sustainer, engaging grooves corresponding to the insertion pieces being provided at the left end block and the right end block, recessive U-turn paths correspondingly matching the aperture of the sliding base being provided at an inner rim of the left end block and the right end block for providing a guide for the rolling elements, the left end block and the right end block being provided with positioning posts engaged with the circulating partition thereby enabling the circulating partition and an anti-dust cover to be fixed to front and rear ends of the sliding base; whereby the end members can be assembled as a module and can be fixed on front and rear ends of the sliding base for providing a circulative turning path for the rolling elements.