US 4,701,058 AGranted

Stopper mechanism of a linear motion rolling contact bearing assembly

AssigneeNippon Thompson Co., Ltd.

InventorTatsuo Mottate

Life of this patent

Estimating the term…

Loading patent…

Abstract

A linear motion rolling contact bearing assembly including a rail, a slider and a plurality of rolling members interposed between the rail and the slider for providing a rolling contact therebetween is provided. The rail includes a bottom wall and a pair of side walls extending upward from the opposite sides of the bottom wall, so that the rail has a U-shaped cross section. The slider includes a frame which is comprised of a top wall and a pair of side walls depending from the opposite sides of the top wall, so that the frame has a U-shaped cross section. Each of the side walls is provided with a guide groove so that the rolling members are interposed between the rail and the slider as partly fitted in a pair of associated guide grooves. The rail is provided with a stopper at each end thereof, and the side walls of the frame extend sufficiently downward so that their bottom ends are engageable with the stopper when the slider has moved to an extreme end of the rail, so that the slider is prevented from slipping away from the rail.

Claims11

Dependent claims

A linear motion rolling contact bearing assembly, comprising:

a rail extending straight over a predetermined distance and including a bottom wall and a pair of outer side walls extending upward from opposite sides of the bottom wall, each of said pair of outer side walls being provided with an outer guide groove extending straight and in parallel with a longitudinal direction of said rail, said rail being provided with a stopper at each end thereof and said rail being integrally formed by bending a plate;
a slider received in a space defined by said rail and including a frame having a top wall and a pair of inner side walls depending downward from opposite sides of the top wall, each of said pair of inner side walls being provided with an inner guide groove extending straight and in parallel with an associated one of said pair of outer guide grooves, each of said pair of inner side walls having a bottom end which is engageable with said stopper at each end of said rail, and said frame being integrally formed by bending a plate;
and
a plurality of rolling members interposed between said rail and said slider as partly fitted in said associated pair of inner and outer guide grooves.

1 more element

Dependencies are inferred from the claim text.