JPH0255565B2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to a method for producing a frame material that can be used for earthworks such as slope protection works and reinforcement materials for embankments, and also as building materials. The present invention relates to a manufacturing method capable of manufacturing a long frame material from a base material through a series of steps.

<Prior art> Conventional methods for manufacturing this type of frame material include, for example, as described in Japanese Patent Application Laid-open No. 58-62221, in which a tape-shaped material constituting the frame material is cut into a rectangular or rectangular shape when stretched. A manufacturing method in which sheets are successively overlapped and joined by methods such as sewing, gluing, or welding to form a large number of hexagonal squares, or sheets of a fixed length are pasted together at predetermined portions and overlapped. , and then cutting it to a predetermined width.

<Problems to be solved by the invention> However, in these manufacturing methods, the process from raw material to product is divided into multiple steps, so a large space is required for storing intermediate products.
Furthermore, since a plurality of steps must be performed in sequence, a long manufacturing time is required, and the latter method in particular has difficulty in manufacturing long frame materials.

The present invention has been made with the aim of solving such difficulties, and it is possible to produce a fixed-length frame material from a fixed-length base material in a simple process, and to continuously produce a long frame material from a long-length base material. It is intended to be manufactured in

<Means for Solving the Problem, Part 1> The present invention provides a method for folding the base material of a sheet material in the longitudinal direction so that the bottom surface side of the base material is aligned with the outer fold line that is folded in the direction of aligning the top surface side of the base material. At the same time, make cuts of a predetermined length on the outside fold line and the inside fold line at a prescribed vertical interval, respectively, and set the cuts on the outside fold line and the inside fold line alternately at a predetermined width interval. A cut forming process in which the cuts are formed in a positional relationship that is shifted by 1/2 pitch from the cuts on the line, and a surface area that connects each uncut portion (the vertically spaced portion) on the above-mentioned outer fold line in the width direction. The lower surface side (first joint surface) and the upper surface side of the area where each uncut portion on the above inward fold line is connected in the width direction (second joint surface)
an adhesive application step of applying an adhesive to each of the above two steps, and folding the base material subjected to the above two steps from each of the above outer fold lines and inner fold lines into a folded shape, and then folding the base material into a folded shape from each of the above outer fold lines and inner fold lines, and A method for manufacturing a frame material, which includes a folding and joining step of joining each of the two, and the cut forming step and the adhesive application step may be performed first as long as the positional relationship between them is maintained. Further, the length of the cut and the vertical interval between the cuts are set according to the size and shape (hexagonal) of the squares formed when the frame material is expanded. Furthermore, the manner in which the adhesive is applied to the first and second bonding surfaces includes not only the case where the adhesive is applied to the entire surface but also the case where the adhesive is applied to a part of the bonding surface for bonding. Adhesives also include all types of adhesives. Typical processing patterns include the cut formation process,
A possible method is to perform the adhesive application process and the folding process in this order as the base material is transported, and when using a fixed-length base material, a fixed-length frame material can be manufactured continuously, and a long When a base material is used, long frame materials are manufactured continuously.

<Function> The present invention can perform the three steps of forming a cut, applying an adhesive, and folding as a series of processing steps, and it is possible to perform the three steps of forming a cut, applying an adhesive, and folding as a series of processing steps. Applicable to shaku base material.

In these processes, the part (area) sandwiched by staggered cuts in the base material and the joint surface of the base material each constitute one side of the square formed when the frame material is stretched, and each fold The width interval of the lines (width interval of the cuts) becomes the height of the frame material, and the length of the cuts and the size of the vertical interval determine the size and shape of the squares.

<Means for Solving the Problem, Part 2> The present invention provides a method for folding a sheet-like base material in the longitudinal direction so that the bottom surface side of the base material is aligned with an outer fold line that aligns the top surface side of the base material. At the same time, make cuts of a predetermined length on the outside fold line and the inside fold line at a prescribed vertical interval, respectively, and set the cuts on the outside fold line and the inside fold line alternately at a predetermined width interval. A step of forming cuts sequentially from the starting end of the base material so that the cuts on the line are shifted by 1/2 pitch from each other, and a step of forming the cuts on the base material from each fold line. In the folding process of folding, and in the middle of the above folding process, 1,
A method for manufacturing a frame material, comprising a joining step of overlapping and sewing, gluing, welding, or fastening the second joining surfaces, and joining means in the joining step performed in the middle of the folding step. A joining method is used depending on the material of the base material, and a joining pattern on the joining surface is set according to the tensile strength required for the frame material.

In addition, if the base material has members such as force threads or rope-like members that are tensile strength members between each fold line, only the force threads or rope-like members that are in contact with each other at the joint surface are joined. It may also be a configuration.

<Function> The present invention performs the bonding process on the base material during the folding process after performing the cut formation process, so the three processes can be performed as a series of processing processes, and the base material can be bonded by other means other than adhesion. It is suitable for continuous manufacturing of long frame materials from long base materials by applying it when joining.

Embodiments of the above two inventions will be described in detail below with reference to the drawings.

Embodiment 1 FIG. 1 is a plan view of an embodiment of the first invention, showing the positional relationship between a pattern for forming cuts in the base material and first and second bonding surfaces to which adhesive is applied. ,
Fig. 2 is a plan view showing the base material shown in Fig. 1 in a state in which it is folded loosely, and Fig. 3 is a plan view showing the shape of the squares formed when the frame material manufactured according to this example is stretched. be. In FIG. 1, an outward fold line 2a is formed by folding a sheet-like base material 1 (for example, a non-woven fabric) having a width W into equal parts at intervals of a width w, and the lower surface side of the base material 1 is folded in the same direction. Set the inward fold lines 2b, which are folded so that the top sides meet, alternately from one edge, and these fold lines 2a, 2.
Cuts 3a and 3b of a predetermined length L are provided on b, respectively, with an interval l (=L/3), and the cuts 3a and 3b are shifted by 1/2 pitch (=1/2 (L+l)), i.e. They are formed in a staggered pattern with a phase shift of 180°.A method for forming such cuts 3a and 3b is, for example, by moving the base material 1 in the direction of the first arrow A shown in the figure and arranging them at intervals of width w. It can be formed by passing it through a plurality of slits (not shown).

Next, connect the uncut portion 3a' of the outer fold line 2a of the base material 1 to the lower surface side of the area (hereinafter referred to as the first joint surface 4a) that connects the uncut portion 3a' of the outer fold line 2a of the base material 1 in the width direction of the base material, and the uncut portion 3a' of the inner fold line 2b of the base material 1. Adhesive is applied to the upper surface side (hereinafter referred to as the second joint surface 4b) of the area where the portions 3b are connected in the width direction of the base material. This adhesive is applied, for example, by using a roller having a width W that moves up and down to spread the first bonding surface 4a onto the base material 1.
From the bottom side of the base material 1, move the second bonding surface 4b from the top surface side of the base material 1 using a roller of width (W-2w) to the arrow A.
The coating can be applied to each predetermined position in synchronization with the movement in the direction. Note that the coating may be applied by moving the roller back and forth in the width direction of the base material 1 using a roller having a width l.
Furthermore, the composition may be applied by spraying with a sprayer through a mask.

Although the above description has shown an example in which the adhesive is applied to the first and second bonding surfaces 4a and 4b after forming the cuts 3a and 3b, either of these steps may be performed first.

Next, the base material 1 which has been subjected to the cut forming step and the adhesive application step shown in the first figure is folded into a folded shape along the fold lines 2a and 2b as shown in the second figure. Although various guide members, bending rollers, pressing rollers, etc. for folding are not shown in the figure, such processing can be easily accomplished by conventional means. This folding process allows
The first and second bonding surfaces 4a and 4b are bonded, respectively. That is, in this embodiment, each surface area shown in the first diagram is
...Ru and Ru', O and O', and Ka and Ka' are respectively joined and become one body. Frame material 5 manufactured in this way
It is manufactured into a product by rolling it up into a roll or folding it to an appropriate length.

The cut forming process, adhesive application process, and folding process can be performed successively from the starting end of the base material 1, so that a standard length frame material can be created from a standard length base material. Moreover, each long frame material can be continuously manufactured from a long base material.

FIG. 3 is a plan view showing the stretched state of the frame material manufactured in accordance with the above embodiment, in which cuts 3a and 3b of the length shown in the first diagram are formed at vertical intervals 3a' and 3b' of 1/3. As shown in the figure, the frame material is formed with regular hexagonal squares.

FIG. 4 is a plan view showing the extended state of the frame material 5 in which the vertical interval between the cuts is made small and the first and second joint surfaces 4a and 4b are shaped into narrow strips; in this case, rectangular squares are formed. It becomes a frame material.

Embodiment 2 FIG. 5a is a plan view showing the processing state of an embodiment of the second invention, FIG. . This embodiment shows a case where a frame material is manufactured using a thin metal plate such as a thin steel plate as the base material 1. The base material 1 is being pulled in the direction of arrow B in FIG. 7b and 8a, 8b respectively form the first and second joint surfaces 4a, 4b (as shown in the first diagram)
The edges facing the uncut portions 3a' and 3b' are seamlessly welded or spot welded at appropriate intervals. Welding rollers 7a, 7b, 8a, and 8b are supported by frames 7c and 8c, respectively, and are indicated by arrows D and D, respectively.
The frame 7c is driven in the direction F (shown in Fig. 5 b, c), and the frame 7c is moved from below the base material 1 in the direction of the arrow C (Fig. 5 b).
), the frame 8c is driven from above the base material 1 in the direction of arrow E (shown in FIG. 5c), and the welding rollers 7a and 7b are driven in the direction of arrow
a and 8b are configured to be driven to open and close in conjunction with the direction of arrow F. The base material 1 is folded into a sheet-like state between the folding rollers 6a, 6b, 6c and the guide roller 9. First and second joint surfaces 4 by welding rollers
Welding of a and 4b is performed in the middle. First, open the welding rollers 7a and 7b, and fold the tip of each roller along the fold line 2.
Position it directly below a and 2b. Next, when the base material 1 moves in the direction of arrow B and the tip of the cut 3b comes directly above the welding rollers 7a, 7b, the frame 7c is raised to push out the cut 3b, and then the welding rollers 7a, 7b are moved. Move the base material 1 in the direction of arrow D while holding it, and apply electricity to the outside fold line 2.
Weld the edges of the four locations facing a at the same time, and then open the welding rollers 7a and 7b to remove the frame 7.
c is lowered to enter a standby state until the next welding operation is started.

On the other hand, the next-stage welding rollers 8a and 8b operate simultaneously to spread out the cut 3a and simultaneously weld the three edges facing the inward fold line 2b. During this time, the spreading roller 8c prevents the other side of the base material 1 from coming into contact with the welding roller 8a.

In the above embodiment, a welding roller with a tapered tip was used to spread out the cuts 3a and 3b in the base material 1, but a member inserted into the cuts in the base material 1 to spread them apart; A welding roller may be provided separately.

In this case, instead of the welding roller, the base material may be fastened with a fastening member such as a rivet or a stapler.If the base material is a thermoplastic material, it may be configured to be welded by heating. When the material is woven fabric, it may be sewn together with sewing thread, or it may be spray-coated with a thermosetting adhesive and bonded by heating.

Furthermore, if the base material is one in which power threads or a rope in place of these are woven into the intermediate portions of the folding lines 2a and 2b, only the power threads or ropes are sewn or fastened with metal wires, etc. It may also be a configuration.

<Effects of the Invention> According to the present invention, a fixed-length or long-length frame material can be manufactured by performing continuous processing steps on a fixed-length or long-length sheet-like base material. It has great practical effects, such as simplifying the process and not requiring a large space for manufacturing.

[Brief explanation of the drawing]

Figures 1 to 3 are diagrams for explaining one embodiment of the first invention, and Figure 1 is a plane showing the positional relationship between the pattern of cuts made in the base material and the bonding surface to which adhesive is applied. Figure 2 is a plan view showing the state of the base material in the process of folding the base material, which has been subjected to the cut forming process and adhesive application process shown in Figure 1, from the crease line into a folded fold. FIG. 4 is a plan view showing the shape of the squares formed when the frame material according to this embodiment is stretched, and FIG. FIG. 5 is a diagram for explaining an embodiment of the second invention, and FIG. Figures b and c are side views taken along arrows B-B and C-C, respectively. <Explanation of symbols>, 1...Base material, 2a...Outward folding line, 2b...Inward folding line, 3a, 3b...Cut,
3a', 3b'...uncut portion, 4a, 4b...first and second joint surfaces, 5...frame material, 6a, 6b, 6
c...Folding roller, 7a, 7b, 8a, 8
b...Welding roller, 7c, 8c... Frame, 8d...
...Spreading roller, 9...Guide roller.

Claims (1)

[Scope of Claims] 1. In the longitudinal direction of a sheet-like base material, an outward folding line along which the base material is folded while its lower surface side is brought together and an inward folding line along which the base material is folded in a direction in which the upper surface side thereof is brought together are arranged in a predetermined direction. In addition to making cuts of a predetermined length on the outer fold line and the inner fold line at predetermined vertical intervals, the cuts on the outer fold line and the cuts on the inner fold line are 1/1/2 of each other.
A cut formation process in which the positions are shifted by 2 pitches, and a cut is formed on the lower surface side of the area connecting the uncut portions (the vertically spaced portions) on the outer fold line in the width direction (the first joint surface). ) and the upper surface side of the area where each uncut portion on the above inward fold line is connected in the width direction (second joint surface)
an adhesive application step of applying adhesive to each of the above two steps, and folding the base material subjected to the above two steps from each of the above outer fold lines and inner fold lines,
A method for manufacturing a frame material, including a folding and joining step of joining the first and second joining surfaces, respectively. 2. The method for producing a frame material according to claim 1, wherein the sheet-like base material is a woven fabric, a nonwoven fabric, paper, a synthetic resin sheet material, a synthetic resin net material, a thin metal plate, or a metal net material. 3. In the longitudinal direction of the sheet-like base material, an outer fold line that folds the base material so that its lower surface sides meet and an inward fold line that folds the base material so that its upper surface sides meet together are alternately arranged at a predetermined width interval. Along with setting,
Make cuts of a predetermined length on each of the outer fold line and the inner fold line at a predetermined vertical interval, and make the cuts so that the cuts on the fold line and the cuts on the inner fold line are shifted by 1/2 pitch from each other. a step of forming cuts sequentially from the starting end of the base material; a folding step of folding the base material with the cuts into a folding fold from each fold line; and 1.
A method for manufacturing a frame material, including a joining step of overlapping second joint surfaces and sewing, gluing, welding, or fastening with a fastening member. 4 Expanding force members are placed between each fold line and the sheet-like base material is fixed together with the outer fold line that folds the base material in the longitudinal direction so that its lower surface sides are aligned. Inner fold lines for folding the upper surface sides of the base material in the matching direction are set alternately at a predetermined width interval, and cuts of a predetermined length are made on each of the outer fold line and the inner fold line at a predetermined vertical interval. A cut forming step in which the cuts on the outer fold line and the cuts on the inner fold line are sequentially formed from the starting end of the base material so that the cuts on the inner fold line are shifted by 1/2 pitch from each other, and the base material with the above-mentioned cuts The process of folding the material from each fold line into a folding process, and in the middle of the above folding process, 1.
A method for manufacturing a frame material, including the step of joining only expanding force members that meet each other within a second joint surface. 5. The method for manufacturing a frame material according to claim 4, wherein the expansion force member is a power thread or rope woven into the sheet-like base material.