In the pura device

摘要

PROBLEM TO BE SOLVED: To stably operate a sewing machine at high speed.;SOLUTION: A puller device 100 is provided with: clutch sleeves 53a and 53b having a built-in one-way clutch; and a spacer member 54. Two first thrust plates 56a and 56b made of phosphor bronze are provided on respective end faces opposing each other of the clutch sleeve 53a and the spacer member 54, and one second thrust plate 57 consisting of steel material is provided between the two first thrust plates 56a and 56b. The respective first thrust plates 56a and 56b are engaged with the respective end faces opposing each other of the clutch sleeve 53a and the spacer member 54 to be turnable integrally in the direction of periphery of an axis. An oil feeding path 55 is formed at the clutch sleeve 53a, and through-holes are formed at the respective first thrust plates 56a and 56b and the second thrust plate 57. Guiding grooves A, B and C for guiding grease are formed at the end face of the second thrust plate 57 to supply the grease from the oil feeding path 55.;COPYRIGHT: (C)2007,JPO&INPIT