JPH0411805Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present application relates to a stencil printing device that performs printing by pressing a printing original plate onto printing paper placed on a support stand.

[Conventional technology]

A conventional stencil printing device is shown in FIG. This stencil printing device 10 includes a pedestal 3 on which printing paper (not shown) is placed, and one end 2a of a support 2 that supports the pedestal 3, and a printing original 9 attached to its mounting member 8. The base paper 9a of the original printing plate 9 is pressed against the printing paper on the pedestal 3 by the pressing operation of the press plate 7, thereby allowing printing to be performed.

[Problem that the invention attempts to solve]

The problem with this type of stencil printing device 1 is that when the press plate 7 is opened from the support base 2 after printing is completed, the printing paper is pulled up while remaining attached to the base paper 9a of the printing master plate 9 due to the adhesiveness of the ink. When the printing paper is then separated from the base paper 9a, the printing paper may shift toward the surface of the base paper 9a, which may disturb the printed image.

In order to eliminate the above-mentioned drawbacks, a support stand for printing paper as shown in FIG. 5 was proposed in U.S. Pat. This printing paper support stand 11 is equipped with a rubber adhesive plate 3b on the entire upper surface of the sponge body 3a constituting the base 3 of the support stand 2, so that even when the press plate 7 is opened from the support stand 2 after printing is completed, The printing paper (not shown) is formed so as to stick to the rubber adhesive plate 3b and remain on the support base 2 reliably. However, since the printing paper is securely held on the support stand 2, it is necessary to separate the printing paper from the support stand 3, and a driving means 5 is provided as shown in the figure.

Therefore, the driving means 5 for the support base 2 is provided with a push-up member 5a in a groove 3c opened in the base 3, and the push-up member 5a is located at a protruding position protruding from the base 3. It is configured to be movable by an arm 5b between a retracted position in the groove 3c and a retracted position.

However, the above-mentioned printing paper support stand 11 not only requires a large-scale device itself, but also has a plurality of grooves 3c formed in the stand 3, which may cause uneven pressure on the printing paper when the press plate 7 is pressed. This results in affecting the printed image.

The present invention was developed in view of the above points, and has a simple structure that does not stick to the base paper of the press plate.
Another object of the present invention is to provide a stencil printing device that can reliably separate printing paper from a pedestal member without damaging it.

[Means for solving problems]

The above-mentioned purpose is to provide a pedestal that is provided on a support base and has a surface portion for adhering and holding printing paper, a stencil printing original plate that is held at a position facing the pedestal, and is pivoted to one end of the support base. A stencil printing device equipped with a pressure plate, which includes a printing paper release sheet that has an opening in a portion and is provided at a position covering the upper surface of the pedestal so as to be openable and closable with one side of the pedestal as a fulcrum. This is accomplished by a printing device.

〔Example〕

Embodiments of the stencil printing apparatus according to the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing the configuration of a stencil printing apparatus 1 of the present invention. The main part of the stencil printing apparatus of the present invention is the printing paper release sheet 4 on the support base 2, and the same components as in the conventional apparatus are given the same reference numerals and the explanation thereof will be omitted.

As shown in this figure, the base 3 on the support base 2 has a rubber adhesive plate 3b formed on the surface of a sponge body 3a, and a printed paper release sheet 4 is provided on the upper surface of this rubber adhesive plate 3b. A plan view of the printed paper release sheet 4 is shown in FIG. One end (rear end) 4a of this printed paper release sheet 4 is attached to one rear side 3d of the pedestal 3, and is roughly constituted by a frame 4b, with an opening 4c between the frames 4b. It is formed. The back side of the printing paper P, which will be described later, is attached to the rubber adhesive plate 3b at this opening 4c. Further, a knob section 4d is provided at the other end (front end) of this printed paper release sheet 4, and by lifting this knob section 4d, this printed paper release sheet 4 can be moved up to the one end 4a of the rubber adhesive plate. It is lifted from 3b.

Next, the operation of the above structure will be explained using the partial side views of FIGS. 3a and 3b.

During printing, printing paper P is set on a printing paper release sheet 4. At this time, most of the back side of the printing paper P is firmly stuck to the rubber adhesive plate 3b on the upper part of the pedestal 3 through the opening 4c of the printing paper release sheet 4. Therefore, as shown in FIG. 3a, when printing is completed and this pressing plate 7 is opened by the pressing operation of the pressing plate 7 (not shown), an image area Pa corresponding to the base paper 9 on the pressing plate 7 is formed. In addition, the printing paper P is designed not to stick to the base paper 9a.

Subsequently, as shown in FIG. 3b, the printing paper P is
By pulling up the tab section 4d of the printed paper release sheet 4, it can be peeled off from the rubber adhesive plate 3b.

Note that the opening 4c of the printed paper release sheet 4 can be formed into various shapes depending on the frame 4b. Further, by providing grid lines as shown in FIG. 2, the paper can be easily aligned during printing.

[Effect of idea]

As explained above, according to the stencil printing apparatus according to the present invention, at the end of printing, the printing paper is stuck to the pedestal regardless of the adhesion strength of the ink, so it does not stick to the base paper, and the printing paper release sheet It can be easily peeled off and taken out from the pedestal. Therefore, there is an effect that a good printed image can be obtained and printing work can be performed efficiently without increasing the size of the apparatus.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing the stencil printing device of the present invention, Fig. 2 is a plan view showing a printing paper release sheet used in the device, and Figs. 3 a and b are partial side views showing the operation of the device. 4 and 5 are perspective views each showing a conventional stencil printing apparatus. 1 ...Stencil printing device, 2...Support stand, 3...Pedestal, 3a...Sponge stand, 3b...Surface portion (rubber adhesive board), 4...Printed paper release sheet, 4a...One end, 4b... ...Frame part, 4c...Opening part, 4d...Knob section part, 7...Press plate, 8...Mounting member, 9
...Printing original plate, 9a...Base paper.

Claims (1)

[Claims for Utility Model Registration] (1) A pedestal 3 provided on a support 2 and having a surface portion 3b for adhesively holding a printing paper P, and a stencil printing original plate 9 at a position facing the pedestal 3. In the stencil printing apparatus, the stencil printing apparatus is provided with a press plate 7 which is held and pivotally connected to one end 2a of the support base 2. A stencil printing device comprising a printing paper release sheet 4 whose one end 4a is attached to one side 3d and which can be opened and closed using the one end 4a as a fulcrum. (2) The stencil printing apparatus according to claim 1, wherein the printing paper release sheet 4 is provided with grid lines 4e.