JPS6097896A - Stacking bonding method of paper piece, etc. - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Technical Field to which the Invention Pertains] The present invention relates to a method of polymerizing at least two pieces of paper, for example, in the same way as the opening of an envelope is bonded with glue, an adhesive, or an adhesive. This paper ('4) relates to a method for polymerizing and bonding paper strips, etc., which can be bonded quickly and easily.

(Prior Art) Conventionally, glue or adhesive has been used to polymerize and bind at least two pieces of paper, which has been significantly inferior in terms of speed and ease of operation.

[Summary of the invention]

This invention was made based on the fact that when several pieces of polymerized paper are pressed or perforated at the same time, they are bound together by the paris produced in the processed parts. The paper is characterized in that tongues are formed by punching the paper from the front and back, and at the same time as the tongues are formed, they are engaged with each other and bound together so that the paper pieces do not separate.

〔Example〕

To explain this invention with reference to illustrated embodiments, 1 is a sealed envelope that is used throughout this invention, +11 is a sheet of paper folded in half, and three sides other than the folded part are )
1 shows an example in which the openings of an ordinary envelope are each closed by the method of the present invention. In this 5, 2 (?) indicates the closed part. FIG. 2 is an enlarged view of the closed part 2. That is, at the edge where the front and back paper pieces of the envelope 1 to be sealed overlap, a tongue piece 1b is formed protruding from the base 1a by an arc extending over half a circumference and connected to the base 1a at a portion corresponding to a chord. . The tongue pieces 1b are provided in two rows along the edge, and the two corresponding tongue pieces 1b are bent in opposite directions. The state is shown in FIG.

Next, a method for polymerizing and bonding paper strips and the like according to the present invention will be explained. First, a punching device P shown in FIG. 4 and subsequent figures is prepared. The punching device P includes a pair of upper and lower guide plates 3 and their guide holes 3.
A reciprocating member 4 equipped with a large number of punch blades 4a inserted through a
, and a stopper member 5 connecting therebetween. The bunch blades 4a have upper and lower bunch blades 4a arranged alternately in a staggered manner, and the two tongue pieces 1b are bent in opposite directions. 6 is a return spring. Bunch blade 4a
consists of a steel round bar with a diameter of 2 liters, with a cutting edge 4b at the tip.
is formed, and there is a half-moon-shaped notch near the cutting edge. The diameter of the bunch blade 4a is preferably 2'D or less, and if it exceeds 3N, the closed part can be opened easily.

Next, the envelope 1 is inserted between the pair of guide plates 3 of 2 lower 2 IIM, and it hits the stopper member 5 (Fig. 4), and in this state, the upper reciprocating member 4 is returned against the spring 6.6. When the guide plate 3 is moved downward at the same time, the upper and lower bunch blades 4a advance within the guide hole 3a and pierce the envelope l from the front and back. The bunch blade 4a forms a tongue piece 1b having an arc larger than a semicircle, advances further, and bends the tongue piece 1h in the advancing direction (FIG. 5).

When the push-down of the reciprocating member 4 is released, the upper and lower reciprocating members 4
is returned to its original position by the elasticity of the return spring 6.6.

〔Effect of the invention〕

According to this invention, punches are made to protrude from the front and back sides of the polymerized paper strips, and a large number of tongue pieces are connected at relatively small portions, so that they are bound together in a state that is difficult to separate. This method has the effect of being able to close a large amount of envelopes in a short time compared to the case where envelopes are closed with glue or adhesive. In addition, there are other effects such as not getting your hands dirty during the work, and also being able to be used in place of a clip.

Note that this method can be applied not only to paper pieces, but also to bonding vinyl, metal foil, etc. Further, the shape of the hole to be made is not limited to a semicircle, but may be any shape, such as an inverted trapezoid, as long as a tongue piece larger than the length of the part connected to the piece of paper can be formed.

[Brief explanation of the drawing]

The drawings show an embodiment of this invention; Fig. 1 is an external view of the sealed letter, Fig. 2 is an enlarged plan view of its main parts, Fig. 3 is a sectional view taken along FIG. 5 is a cross-sectional view showing the operation of the device used to carry out the present invention, and FIG. 6 is an enlarged external view of the main parts thereof. 1 is a sealed letter, 1a is its base, 1b is a tongue piece attached to it,
P is a punching device. Patent applicant: Isao Shirayanagi Ota Parts Co., Ltd.

Claims (3)

[Claims] (1) Polymerization of paper strips, etc., characterized by polymerizing at least two paper strips, etc., making punches protrude from the front and back sides, and forming a large number of tongue pieces connected to the base material such as paper strips at relatively small parts. Binding method. (2) The method for polymeric bonding of paper strips and the like according to claim 1, wherein the tongue piece has a substantially circular shape that is connected to the substrate at the string portion. (3) A method for polymerizing and bonding paper strips as claimed in claim 1, wherein at least two paper strips are openings of envelopes.