Clamp for flexible hoses

A clamp for flexible hoses consisting of:

• a clamping band formed by continuously winding a single springy metal wire to provide a pair of concentric circular rings partly overlapping each other to receive a hose and facing each other with a predetermined spacing therebetween, an inverted U-shaped rising bracket arm spanning the space between said circular rings at one of the respective ends of said rings, and a pair of eyelets formed by bending back the other ends thereof;
• an operating lever of metal strip integrally formed with a hook at one end thereof, a pair of eyelets having insertion holes in a middle portion thereof, and a substantially inverted L-shaped finger rest at the other end thereof, said operating lever being mounted immediately above the overlap region of said circular rings with said hook being pivotally engageable with said bracket arm;
• and
• a substantially U-shaped prop arm of metal wire pivotally supported at the upper end thereof in said insertion holes of said operating lever and at the lower end thereof in said eyelets of said circular rings, said prop arm being normally held in its rising position, the arrangement being such that by pressing said lever at said finger rest on its free end side downwardly against said circular rings of the clamping band, the opposite ends of the winding of the clamping band are forced to move away from each other under the resulting lever action, thereby contracting the diameter of the circular rings to clamp the hose.