JPS5921152Y2 - paper stacker device - Google Patents

Description

[Detailed description of the invention] The present invention relates to an improvement of a paper stacker device installed in a printing press, etc., and in particular, an improvement is made to a paper stopper that regulates the front and back position of folded paper to facilitate cutting of the paper. This paper pertains to a new paper stacker device.

Printing paper used in line printers, which are generally output devices for computers, etc., has perforations at predetermined lengths, and the paper ejected from the printing machine is folded along these perforations. The stacker can be stacked on the table of the stacker while being moved.

Then, for each predetermined printing job, a paper knife or the like is used as appropriate to cut the perforations and take out the printed paper. At this time, in conventional stacker devices, a metal stopper is placed behind the folding surface of the paper. As a result, the paper knife hits the paper stopper, making it difficult to cut the paper.

In this regard, methods have been considered in which the paper stopper or stacker table is moved when cutting the paper, but this has been difficult in terms of workability.

This invention was made to solve the above problems,
It is an object of the present invention to provide a stacker device that can easily cut sheets without moving a sheet stopper or a stacker table when cutting sheets.

Briefly stated, the present invention is a paper stacker device that includes a stacker table that folds and stacks continuous paper ejected from a printing press into a predetermined length, and a paper stopper that regulates the position of the folded paper. A part of the side wall of the paper stopper is formed of a stretchable elastic member so that the elastic member is deformed outward by contact with a paper knife when cutting the continuous paper from the perforation. It is characterized by the following.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of a paper stacker device according to the present invention will be described in detail with reference to the drawings.

FIG. 1 is a side sectional view of the main part showing one embodiment of the present invention, and FIG.
The figure is a front view of the stopper, in which 1 is a stacker table, 2 is a paper stopper, 3 is an elastic member, 4 is a continuous sheet of paper, 5 is a paper knife, and 21 is a protrusion.

In such a configuration, the continuous paper 4 discharged from the printing press main body (not shown) is regulated by the paper stopper 2, and stacked on the vertically movable stacker table 1 while being folded along predetermined perforations. is not particularly different from the conventional stacker operation.

However, in the present invention, a protrusion 21 is formed on a part of the side wall of the paper stopper 2 to provide relief for the paper knife 5 when cutting the paper, and the paper is stacked in front of the recess 22 formed by the protrusion. An elastic member 3 made of rubber or the like is pasted to restore the original regulating surface.

Therefore, when stacking sheets 4, a stopper function similar to the conventional one can be obtained, and when cutting the sheets with the paper knife 5, the paper knife 5 moves into the recess 2 of the sheet stopper 2.
Although it hits the elastic member 3 made of soft rubber or the like attached to the front surface of the side wall as part of the side wall, it is easily pushed out and retreated in the direction of the arrow as shown by the two-dot chain line, so that the perforation can be easily cut.

In the above embodiments, the recesses 22 of the paper stopper have been described in detail as a single large opening. However, the recesses 22 of the paper stopper are formed into a plurality of vertically slender shapes, and the elastic member 3 is inserted into the front opening of the recesses. It is also possible to make it match the section.

Further, the shape of the protruding portion 21 is not limited to a trapezoidal shape, and as long as the shape is 5, as long as the shape does not impair mechanical strength, a through-hole type window may be formed by punching, and an elastic member may be attached to the window.

As explained above, according to the paper stacker device according to the present invention, it is possible to easily cut the stacked papers without moving the paper stopper or the stacker table, thereby improving work efficiency. It greatly contributes to the improvement of the printing press, and it is extremely advantageous to attach it to various printing machines.

[Brief explanation of drawings]

FIG. 1 is a sectional side view of essential parts of an embodiment of a paper stacker device according to the present invention, and FIG. 2 is a front view showing a stopper structure. 1: Nistatsuka table, 2: Paper stopper, 3: Elastic member, 4: Continuous paper, 5: Paper knife.

Claims (1)

[Scope of utility model registration request] In a paper stacker device comprising a stacker table for folding and stacking continuous paper discharged from a printing press body into a predetermined length, and a paper stopper for regulating the position of the folded paper, the side wall of the paper stopper is A part of the paper is made of a stretchable elastic member, and the elastic member deforms outward when a paper knife comes into contact with the paper when cutting the continuous paper from the perforation. paper stacker device.