Bottom pair lock of paper box, and, of paper box blank sheet

摘要

The present invention can be and the bottom pair lock of the paper box to enhance the efficiency of the work in assembling, and, to provide a blank sheet of paper box A bottom set lock of paper box, a pair of notches 15 provided in the inner bottom plate has a taper shape toward the proximal end side of the inner bottom plate from the front end side of the inner bottom plate, the notch a first side 15A extending to the distal end side of the inner bottom plate from the tip of 15, are defined by a second side 15B that extends to the distal side of the inner bottom plate from the tip of the notch 15. The distance between the first side 15A and another cutout 15 of the notch 15 is longer than the distance between the second edge 15B and the other notch 15 of each notch 15, the second side 15B of the respective notches 15 , at each portion of the second side 15 B, as the site distance is short between the end sides of the inner bottom, short distance from the other notch 15, and curved as a collision towards the inside of the cutout 15 havingFIELD 1