| 摘要 |
PROBLEM TO BE SOLVED: To provide a knapsack type implement enabled to put down a knapsack frame quickly when a pair of right and left shoulder straps for backpacking the knapsack frame of a knapsack type implement are connected by chest straps.SOLUTION: A knapsack type implement 10 comprises: a pair of right and left shoulder straps 14 and 15 for an operator to backpack a backpack frame 11; and a chest strap for connecting the paired right and left shoulder straps 14 and 15. The left shoulder strap 14 comprises an upper strap 14a and a lower strap 14b which can be separated at a connecting portion connecting the chest straps. At the connection portion, there is disposed a withdrawal device 30 for withdrawing the lower strap 14b and the chest strap by a single operation from the state, in which the three straps of the upper strap 14a, the lower strap 14b and the chest strap are connected. |
