| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a lubricant supply device capable of normally performing the smooth push operation of a key by simply replenishing a lubricant. <P>SOLUTION: A lubricant supply device 32 for supplying a lubricant 31 to key guide parts 17, 19 guiding keys 10 in a vertical direction when the keys are operated by pushing includes: a lubricant supply part 35 for pushing out the lubricant 31 with the use of a piston 34 from the inner part of a cylinder 33 storing the lubricant 31; and lubricant flow passages 37 arranged in the key guide parts 17, 19 and guiding the lubricant 31 pushed out from the lubricant supply part 35 to the slide surfaces of the key guide parts 17, 19 where the keys 10 are moved by sliding. Consequently, the lubricant 31 is supplied to the slide surfaces of the key guide parts 17, 19 with the lubricant flow passages 37 of the key guide parts 17, 19 only by pushing out the lubricant 31 from the lubricant supply part 35. Thus, the lubricant 31 is simply replenished to the slide surfaces of the key guide parts 17, 19 thereby to normally perform the smooth push operation of the keys 10. <P>COPYRIGHT: (C)2013,JPO&INPIT |
