Patent ID: 8763839
Filing Date: 2014-07-01
Classification: F16J,Y10T

Abstract:
1. A band coupling for mutually coupling a container body having a first flange section and a container lid having a second flange section by clamping together outer peripheries of the first flange section and the second flange section, comprising: a retainer capable of surrounding substantially once around the outer peripheries of the first flange section and the second flange section, and of being fitted together with the first flange section and the second flange section; and a tightening mechanism for tightening the retainer; the retainer further comprising a first end section of one end to which the tightening mechanism is connected, and a second end section of another end, which is bent outward and opposes the first end section when the retainer is tightened; the tightening mechanism further comprising: a stopper that is attached rotatably to the first end section of the retainer; a pressing bolt that is screw-engaged with the stopper so as to be capable of advancing and retracting, and which presses the second end section toward a side of the first end section in a state in which the retainer is fitted to the first flange section and the second flange section, and a projection projecting from the second end section in a direction away from the first end section, to retain the pressing bolt when the pressing bolt presses the second end section, wherein the tightening mechanism further comprises a recessed cavity formed in a face of the second end section and recessed from the face of the second end section in a direction toward the first end section, and wherein the projection is a hollow tubular member surrounding the recessed cavity and wherein an inner periphery of the projection is not threaded, whereby the pressing bolt can be inserted in the projection without being screw-engaged with the projection in a state in which the second end section is pressed by the pressing bolt.