HOSE CLAMP AND METHOD OF MANUFACTURING THE SAME

摘要

The pinching operation is facilitated. A hose clamp (H1) is formed by bending a strip-like plate material (1) into a ring-like configuration, and includes a first end portion (5) having a first pinching operation surface (9), and a second end portion (6) having a second pinching operation surface (15). A through-hole (7) is open near the center in the longitudinal direction of the first pinching operation surface (9). At the time of bending into ring-like configuration, expansion regions (19) arranged at both side portions in the width direction of the second pinching operation surface (15) are folded at folding edges (20) with respect to a proximal region (18), whereby the second pinching operation surface (15) is narrowed in the width direction and can enter the through-hole (7). After bending into ring-like configuration, the expansion regions (19) are unfolded at the folding edges (20) and regain a widened state.

主权项

1. A hose clamp which is formed into a ring-like shape by bending a strip-like plate material so as to cause it to cross itself in a peripheral plane to thereby form a tightening portion and which can tighten a connection portion between a hose and a mating member thereof by means of this tightening portion, the hose clamp comprising:
a first end portion arranged at one longitudinal end side and having a first pinching operation surface at an end portion thereof; and a second end portion arranged at the other longitudinal end side and having at an end portion thereof a second pinching operation surface opposite the first pinching operation surface, wherein at least one of the first pinching operation surface and the second pinching operation surface is formed by: a proximal region not including a portion interfering with the first end portion or the second end portion constituting a mating side when the plate material is bent into a ring-like shape along an X-axis constituting a center axis extending along the longitudinal direction thereof, and an expansion region including a portion interfering with the first end portion or the second end portion constituting the mating side when the plate material is bent along the X-axis into the ring-like shape; and, there is formed, between the proximal region and the expansion region, at least one of a folding edge allowing folding of the expansion region to a non-interference position where it does not interfere with the first end portion or the second end portion constituting the mating side when the plate material is bent along the X-axis, and a connection edge for connecting the expansion region formed separately from the proximal region.