Hose clamp

Abstract

Disclosed is a hose clamp to prevent damage of the hose and enhance a fastening force. The hose clamp includes: a clamp body formed by bending a resilient plate-shaped member of a stainless steel; a fastening screw having a head and coupled with a fastening housing which is secured to one end of the clamp body; a plurality of pieced holes formed inwards at the other end of the clamp body to be engaged with the fastening screw; a damage prevention means for preventing the pierced holes or the widthwise edges of the clamp body from penetrating into the hose to damage the surface of the hose during a fastening operation; and a compensation means integrally formed with the clamp body for restraining and firmly fastening the hose in an amount being reduced as the diameter of the hose is decreased due to long-term use.

1 . A hose clamp comprising:
 a clamp body  101  formed by bending a resilient plate-shaped member of a stainless steel;   a fastening screw  104  having a head  103  and coupled with a fastening housing  102  which is secured to one end of the clamp body  101 ;   a plurality of pierced holes  105  formed inwards at the other end of the clamp body  101  to be engaged with the fastening screw  104 ;   a damage prevention means  110  for preventing the pierced holes  105  or the widthwise edges of the clamp body  101  from penetrating into the hose  106  to damage the surface of the hose  106  during a fastening operation; and   a compensation means  120  integrally formed with the clamp body  101  for firmly restraining and fastening the hose  106  in an amount being reduced as the diameter of the hose  106  is decreased due to long-term use.   
     
     
         2 . The hose clamp as recited in  claim 1 , wherein the damage prevention means  110  comprises a hole cover part  111  by extending the end portion of the clamp body  101  so that the pierced holes  105  are not brought into contact with the hose  106 . 
     
     
         3 . The hose clamp as recited in  claim 1 , wherein the damage prevention means  110  further comprises a damage preventing bead  115  for preventing damage of the hose  106  and enhancing the fastening force in cooperation with a pressure created by the fluid flowing in the hose  106  to pressurize the hose  106 , and
 the damage preventing bead  115  comprises a pressing part  112  in which the width wise opposite ends of the clamp body  101  are formed to penetrate into a direction of the hose  106  at the width wise opposite ends of the hole cover part  111  of the clamp body  101  and, a rim part  113  formed at the outside of the pressing part  112  in a peripheral direction of the clamp body  101 , facing away from the hose  106 . 
 
     
     
         4 . The hose clamp as recited in  claim 1 , wherein the compensation means  120  comprises one or more compensating beads  121  having a semi-circle shape in a peripheral direction of the clamp body  101  at a location where the pierced holes  105  end, so as to perform a compensation function through restoring forces of the compensating beads  121  when the hose  106  becomes aged after the compensating beads  121  are spread out to restrain the hose  106 . 
     
     
         5 . The hose clamp as recited in  claim 1 , wherein the compensation means  120  further comprises minor compensating beads  122  in a peripheral direction of the clamp body  101  to perform a compensation function through their restoring forces when the hose  106  becomes aged after the minor compensating beads  122  are spread out to retrain the hose  106 .