Linear sliding guide bearing

Claim 1

A linear sliding guide bearing comprising: an axially extending guide rail including both sliding side surfaces slanting and expanding upwardly and outwardly from both edges of a bottom surface which is fixed to a base, said guide rail including a plurality of fixing bolt holes penetrating from an upper surface to the bottom and spaced at predetermined intervals along an axis line; a slider loosely and slidably fitted onto said guide rail and including both side walls having inner surfaces slanting inversely and opposed to the slanting side surfaces of the guide rail with a gap therebetween, said slider including an upper plate portion having an inner surface opposed to the upper surface of said guide rail with a gap therebetween; a sliding member formed of a thin plastic plate and bonded to the inner surface of the upper plate portion and to the inner surface of both the side walls to fill the gap therebetween; at least one of the side walls being formed with a slit extending vertically from a bottom surface of the side wall to reach near an upper base portion of the inversely slanted inner surface, said slit also extending axially in parallel to the outer side surface of the side wall; and pressing means provided on said one of the side walls for pressing a slit surface of the slit to elastically deform the inversely slanted inner surface towards the sliding side surface of said guide rail.