Shock absorber for backpack

Abstract

The present invention relates to a shock absorber for a backpack, which cushions an impact applied to the body of a user by the weight of the backpack when the user walks while carrying the backpack on his or her shoulders. The shock absorber can be simply attached to an existing strap of a backpack for use.

1 . A shock absorber for a backpack, comprising:
 a body ( 10 ) which has one hollow end to be combinable with a mover ( 20 ) and another end to be combinable with a cover ( 30 ) and comprises a strap connector ( 12 ) combinable with a backpack strap together with a strap combiner ( 50 ) on one side;   the mover ( 20 ) which comprises a spring container ( 24 ) to be combinable with a spring ( 60 ), a fixing pin groove ( 21 ) in the spring container to fix one end of the spring, and a strap connector combinable with the backpack strap together with a strap combiner;   the cover ( 30 ) which is combined with the body and comprises a spring connector ( 31 ) connectable to one end of the spring;   the two strap combiners ( 50 ) combinable with the strap connectors of the body and the mover to combine the backpack strap; and   the spring ( 60 ) which has one end connectable to the fixing pin groove of the mover and another end connectable to the spring connector of the cover.   
     
     
         2 . A shock absorber for a backpack, comprising:
 a mover which comprises spring containers combinable with springs on both sides, a fixing pin groove in each of the spring containers to fix one end of the spring, and a holding step ( 25 ) provided at another end to restrict a tensile length of the spring;   two bodies which have one ends which are hollow to be combinable with the mover and other ends combinable with a cover. comprise a stopping step ( 19 ) corresponding to the holding step, and comprise strap connectors on one sides, which are combinable with a backpack strap together with strap combiners;   two covers which are combined with the bodies and comprise spring connectors connectable to one ends of the springs;   the two strap combiners combinable with the strap connectors of the bodies to be combinable with the backpack strap; and   a plurality of such springs each of which has one end connectable to the fixing pin groove of the mover and another end connectable to the spring connector of the cover and has a different tensile force.   
     
     
         3 . The shock absorber according to  claim 1 , comprising:
 the body and the mover, which comprise strap connectors comprising a plurality of needles ( 15 ); and   the strap combiners which comprise a plurality of needles.   
     
     
         4 . The shock absorber according to  claim 1 , comprising:
 the body which comprises a fastener groove ( 11 ) combinable with a fastener on one side; and   the mover which comprises a holding groove ( 22 ) corresponding to a fastener ( 40 ) on one side.   
     
     
         5 . The shock absorber according to  claim 1 , comprising:
 the body and the mover, which comprise strap connectors including lever type strap combiner grooves; and   lever type strap combiners combinable with the strap connectors of the body and the mover.   
     
     
         6 . The shock absorber according to  claim 2 , comprising:
 the body and the mover, which comprise strap connectors comprising a plurality of needles ( 15 ); and   the strap combiners which comprise a plurality of needles.   
     
     
         7 . The shock absorber according to  claim 2 , comprising:
 the body which comprises a fastener groove ( 11 ) combinable with a fastener on one side; and   the mover which comprises a holding groove ( 22 ) corresponding to a fastener ( 40 ) on one side.   
     
     
         8 . The shock absorber according to  claim 2 , comprising:
 the body and the mover, which comprise strap connectors including lever type strap combiner grooves; and   lever type strap combiners combinable with the strap connectors of the body and the mover.