JP2008002528A5 - - Google Patents

Claims (8)

Adjacent to a linear motion guide device having an infinite circulation path in which a plurality of rolling elements circulate while rolling, and having guide grooves extending in the arrangement direction of the rolling elements on both sides in the width direction in the infinite circulation path The interposition part interposed between the rolling elements and the interposition part are connected to each other on both sides in the width direction of the infinite circulation path, and project outside the end face of the interposition part to guide the guide A rolling element housing belt comprising a pair of connecting arm portions guided by a groove,
The connecting arm portion includes a lubricant reservoir portion having a concave portion or a convex portion on at least one of the surfaces guided by the guide groove ,
And the metal mold | die which has a molded product shape part for shape | molding the said rolling element accommodation belt between an upper mold | type and a lower mold | type, and has an extrusion pin for extruding a molded product so that it can advance / retreat with respect to the said molded product shape part It is manufactured by injection molding from synthetic resin material using
A rolling element housing belt for a linear motion guide device , wherein a concave portion or a convex portion of the lubricant reservoir is formed by a tip portion of the push pin . The rolling element housing belt for a linear motion guide device according to claim 1, wherein an outer edge shape of the concave portion or the convex portion of the lubricant reservoir is circular . 3. The rolling element housing belt according to claim 1, wherein the lubricant reservoir is formed on a surface facing at least the outer circumferential side in the inner and outer circumferential directions in the endless circulation path . The rolling element accommodation belt according to any one of claims 1 to 3, wherein the lubricant reservoir is provided in the vicinity of a portion that connects the interposition part and the connecting arm part to each other . The lubricant reservoir portion is formed of a recess, and a part of the outer edge shape of the recess is provided to open at an edge in the width direction of the connecting arm portion . 5. The rolling element housing belt according to claim 4. A linear motion guide device comprising the rolling element housing belt for the linear motion guide device according to claim 1. The rolling element containing belt for a linear motion guide device according to any one of claims 1 to 5 is used for manufacturing by injection molding from a synthetic resin material, and comprises an upper mold and a lower mold, A mold having a molded product shape portion for molding the rolling element housing belt between an upper die and a lower die, and having an extrusion pin for extruding the molded product so as to be able to advance and retreat with respect to the molded product shape portion. And
The push pin is disposed at a position facing at least one of the surfaces guided by the guide groove of the connecting arm portion to be molded, and the retreat position of the push pin in the advance and retreat direction is: The lubricant reservoir formed in the rolling element containing belt is set at the position of its tip so that it is in a position protruding or retracted from the surface of the connecting arm forming portion of the molded product shape portion. A die for manufacturing a rolling element housing belt, wherein a concave portion or a convex portion of the portion is formed by a tip portion of the push pin. A method for producing a rolling element accommodation belt using the rolling element accommodation belt production mold according to claim 7,
A rolling element containing belt is manufactured by injecting a molten synthetic resin material into the molded product shape portion in a state where the position of the tip portion of the extrusion pin is set to the protruding or retracted position. A rolling element containing belt manufacturing method.