Support Bag for a Knapsack

Abstract

A support bag for a knapsack is provided, which is fixedly connected to a shoulder strap of the knapsack using two hooks provided at upper and lower ends of a rear side thereof and is located in a position that corresponds to a user's chest to securely store valuables therein. The support bag includes a bag body having a reception space and a “ ”-shaped zipper member provided on an edge portion thereof, a first hook provided at a lower end of a rear side of the bag body, and a second hook provided at an upper end of the rear side of the bag body, and provided in a position biased toward the rear side from a vertical center line out of an upper end of an inner surface facing a user's chest to prevent shaking of the support bag in left and right directions.

What is claimed is: 
     
         1 . A support bag for a knapsack, comprising:
 a bag body having a reception space provided therein and a “ ”-shaped zipper member provided on an edge portion thereof to open and close the reception space depending on its moving direction;   a first hook provided at a lower end of a rear side of the bag body; and   a second hook provided at an upper end of the rear side of the bag body, and provided in a position biased toward the rear side from a vertical center line out of an upper end of an inner surface facing a user's chest to prevent the support bag from being shaken in left and right directions.   
     
     
         2 . The support bag for a knapsack according to  claim 1 , wherein a width of the bag body is in the range of 1 cm to 5 cm. 
     
     
         3 . The support bag for a knapsack according to  claim 1 , wherein both ends of a subsidiary shoulder strap are connected to the first hook and the second hook, respectively. 
     
     
         4 . The support bag for a knapsack according to  claim 1 , wherein the zipper member is of a two-way type that can be bidirectionally opened and closed.