Linear motion guide unit
AssigneeNippon Thompson Co., Ltd.
InventorsNorimasa Agari, Toyohisa Ishihara, Kazue Furuta
Life of this patent
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Abstract
A linear motion guide unit with a lubricating system made compact or slim in construction with inexpensive production cost and permitted to lubricatesliding contacts with accompanying reduced maintenance. The slider has a tubular member for a return passage to allow rolling elements rolling through there, a lubricant reservoir to accumulate lubricant, and a leading member to transfer the lubricant from the reservoir to the tubular member. The lubricant is supplied from the reservoir into the return passage via the leading member. The lubricant reservoir including an occluding member packed in a cartridge to keep the lubricant inside the cartridge.
Claims9
A linear motion guide unit comprising a guide rail having a first lengthwise raceway groove thereon, and a slider made therein with a second raceway groove in opposition to the first raceway groove, the slider being allowed to move lengthwise of the guide rail by virtue of more than one rolling element,
- wherein the slider includes a tubular member to provide a return passage to allow the rolling element rolling through the return passage, the tubular member being made to have a cellular structure adapted to be impregnated with lubricant, a lubricant reservoir to harbor the lubricant, which is sequentially applied to the tubular member, and a leading member to allow the lubricant directing from the lubricant reservoir towards the tubular member, and
- wherein the lubricant reservoir has a cartridge of cellular structure to allow the lubricant remaining therein and oozing through the cartridge.
Dependencies are inferred from the claim text.