Holding device of the suction tube of oral suction device

摘要

PROBLEM TO BE SOLVED: To provide a holding device for a suction tube of an intraoral suction apparatus, capable of stopping the suction tube just at a desired position without displacement of an arm from the stopped position if the arm is moved and stopped for changing the position of the suction tube.;SOLUTION: When a regulation handle 75 is tightened, a coil spring 87 is contracted to generate the energization force in the direction of extension of the coil spring 87. With this energization force, a collar 59a between a rod 49 and a rod 51 is pressed on a side surface of the rod 49 and a side plate 41a of a support fitting 39, and a collar 59b between the rod 51 and a rod 53 is pressed on a side surface of the rod 53 and a side plate 41b of the support fitting 39. A pressure washer 70 is pressed on the side surface of the rod 53 and a right side plate 35a of a support base 29. With this structure, the frictional force against the rotation of the rod 49, etc. is increased.;COPYRIGHT: (C)2011,JPO&INPIT