| 摘要 |
PROBLEM TO BE SOLVED: To supply a suitable amount of a lubricant to a slider section. SOLUTION: A lubricant feeder 1 has a lubricant extruder 2 and lubricant storage container 10. The lubricant extruder 2 comprises: a lubricant extruding chamber 36 formed in a block 3; moving members 41 and 42 which are arranged in the block 3 and form one side wall of the lubricant extruding chamber 36; connecting passages 10e and 34 for connecting both the insides of the lubricant extruding chamber 36 and lubricant storage container 10; a plunger 4 which is arranged in a plunger chamber 31 formed in the block 3 and ejects the lubricant in the lubricant extruding chamber 36; a valve chamber 32 formed on a downstream side of the lubricant extruding chamber 36 in the block 3; a valve body which is arranged in the valve chamber 32 and moves along the movement of the plunger 4; and a lubricant feeding passage 37 for feeding the lubricant extruded from the valve chamber 32 to a hydraulic striking device. The position of one side wall of the lubricant extruding chamber 36 is changed so that the moving members 41 and 42 are moved, and accordingly, the volume of the lubricant extruding chamber 36 can be increased or decreased. COPYRIGHT: (C)2008,JPO&INPIT
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