JP2008196709A5 - - Google Patents

Claims (3)

A clamping ring bent in a C-shape and a pair of grips standing in the radial direction intersecting from both ends of the clamping ring, and one grip is a guide established on the clamping ring side It has a wide dimension with an opening in the groove, and the other grip has a narrow dimension that can move in the guide groove. When the diameter of the tightening ring is reduced in a free state, the hose can be tightened. When the grips are brought close to each other, in the hose clamp that expands the fastening ring, a locking part and an engaging part that are detachably locked are provided between the pair of grips, and the pair of grips are brought close to each other. after engagement portion is engaged with the engaging portion, when the approach to the further circumferential direction a pair of grips, the other grip laterally offset engagement portion is moved in a direction out of the locking portion After that, the engaging part comes into contact with the locking part. Reduced diameter the clamping ring without, on the clamping ring of the grip close, hose clamp, characterized in that becomes higher step the plate thickness amount more than the general surface of the clamping ring is configured to be applied . When the pair of grips are brought close to each other and the locking part and the engaging part are locked, the tightening ring is twisted, and the pair of grips are moved closer to each other in the circumferential direction, and the other grip Is shifted laterally through the tapered guide part , and in conjunction with this, the engagement part moves in a direction away from the locking part and the pair of grips are released to reduce the tightening ring. 2. The clamp ring according to claim 1 , wherein the tightening ring is configured to eliminate the twist under a diameter state, and the step is provided to a tapered guide portion. Hose clamp.   The positional relationship between the locking portion and the tapered guiding portion is based on the side edge of the other grip in the free state, and the leading end of the locking portion is separated to the outside of the reference side edge. The hose clamp according to claim 2, wherein the peripheral edge protrudes on the same line or inward of the reference side edge.