The backpack which you don't have to unfasten shoulder part and you can move into back and forth without open it.

摘要

The present invention relates to a backpack, and unlike a conventional backpack, the backpack and the shoulder straps are separated from each other, and relates to a backpack that can move toward the front chest without releasing the shoulder straps.;According to the present invention, the inner back portion of the backpack facing each other, which is separated from each other, is provided with one or more backpack weight bearing and fixing buttons (2) having a function of supporting and fixing the weight of the backpack, and smoothly moving forward One or more rail rotary buttons (5) and one or more rails (8), (9) are inserted into each other and interlocked with each other, so that the shoulder straps face each other, so that they can move forward and backward freely according to the surrounding situation. It is to use the backpack efficiently.;This design not only relieves the inconvenience of having to lean over the back of the back when sitting on a chair, and also reduces the risk of loss due to the fact that everything is in the back of the back in a complicated environment. It is characterized in that the goods inside the backpack can be conveniently stored.