Linear motion guide unit having an adjustable retainer plate
AssigneeNippon Thompson Co., Ltd.
InventorMasaichi Ohtake
Life of this patent
Estimating the term…
Abstract
A linear motion rolling contact guide unit includes a rail, a slider comprised of a center block and a pair of front and rear end blocks, a plurality of rolling members interposed between the rail and the slider and a retainer plate mounted on the slider for providing an intended sealing effect. The end block is formed with an elongated slot and the retainer plate is provided with a projection engageable with the elongated slot such that the projection may move within the slot in the longitudinal direction over a predetermined distance. Thus, even if the retainer plate is comprised of a plastic material and thus expands or contracts relative to the slider for various reasons, such a change in size may be absorbed effectively so that the retainer plate is self-adjusted in position.
Claims8
A linear motion rolling contact guide unit, comprising:
- a rail extending straight over a desired length;
- a slider slidably mounted on said rail in a straddling manner;
- a plurality of rolling members interposed between said rail and said slider;
- sealing means for sealing a gap between said rail and said slider at a mouth of said gap for preventing undesired matter from entering into the interior of said guide unit;
- and mounting means for mounting said sealing means on said slider such that said mounting means absorbs a change in size of said sealing means relative to said slider so as to keep an intended sealing effect substantially unchanged even if said sealing means changes in size.
Dependencies are inferred from the claim text.