| 摘要 |
<p>PURPOSE:To remove foreign matter of cutting chips or the like, which is left existing in a seal groove and a boots groove in a cylinder, applying no hand work, by providing a nozzle, which moves in a diametric direction being able to fit to a recessed groove of a work with compressed air being supplied, and a scraper, which scrapes off the foreign matter in said recessed groove, in a blow head. CONSTITUTION:A device operates so as to scrape off foreign matter of cutting chips or the like, which is left existing in a seal groove 14a formed in the internal peripheral surface of a cylinder 14 of a caliper body 13, by a scraper 18 in accordance with the rotation of a blow head 3 while to inject compressed air from a nozzle 17 in accordance with the rotation of the blow head 3 along its peripheral direction. And the foreign matter of cutting chips or the like in the seal groove 14a can be surely removed because air in the cylinder 14 is attracted from its opening side.</p> |
