Linear motion guide unit
OwnerHugo Isertinventor
Life of this patent
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Abstract
The invention relates to a guide unit (10) for effecting linear motion. It includes a rail body (12) having longitudinal recesses (20) in which shafts (22) are held so as to protrude with their outside (24). The top face (18) of the rail body comprises edges by way of upper ribs (26) which may be elastic or adjustable in opposition to rigid lower ribs (28). Along the center of the rail body (12), there are evenly spaced hollows (32) into which fitting pieces (30) are squeezed. For improved force-fit, the top (18) of the rail body (12) may have a longitudinal slot (52) with bores; if cylindrical rollers ar pressed thereinto, the upper ribs (26) bend down to firmly and uniformly grip the shafts (22). These may be positively engaged by linear ball bearings (42) of a carriage (40) slideably mounted to the guide unit (10).
Claims20
Guide unit for effecting linear motion, including a rail body supporting at either side of its longitudinal axis one shaft each, at the outside of which at least one body to be guided is adapted to be slidable by way of linear ball bearings, or rollers, wherein the rail body is an integral clamping profile that includes hollows for receiving fitting pieces by which the shafts are fixed.
Guide unit according to 15, wherein by bending the upper ribs and/or by forcing the fitting pieces into the hollows, the shafts are adapted to be pressed for positively engaging bushing-type grooves of the longitudinal recesses.
Dependencies are inferred from the claim text.