JPH0577771B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION OBJECTS OF THE INVENTION (INDUSTRIAL APPLICATION) The present invention relates to the structure of a pattern paper for a jiacard machine.

(Prior Art) As shown in FIG. 9, the jacquard machine 2 on the jacquard loom 1 includes a polygonal, circular cylinder, or semicylindrical cylinder 3, and two cylinders extending diagonally downward from just below the cylinder 3. parallel pattern paper sink 4,
A guide roller 5 supported by an arm 5a is provided above the patterned paper sink 4, and a patterned paper 6 made of an endless sheet S having pattern holes corresponding to the weaving structure of the fabric. The above-mentioned pattern paper sink 4
It is placed on the upper part of the cylinder 3, moves to the lower part, bends in a zigzag shape there, is guided by the guide roller 5, and returns to the cylinder 3 again.

(Problem to be Solved by the Invention) However, when the pattern paper 6 is used for a suitably long period of time, the pattern paper 6 having the planar shape shown by the solid line in FIG. Among the folds 8 formed in the width direction W, the fold on the side where the hook 11 for locking the patterned paper 6 to the patterned paper sink 4 is attached (hereinafter referred to as the hook side fold in the present invention) 8x is folded as shown in Figure 10, and the so-called
There is a phenomenon called "denting".

This phenomenon is caused by the fact that the patterned paper 6 itself loses its rigidity as a whole and becomes easily bent, and at the bottom of the patterned paper sink 4, as shown in FIG. As shown in FIG.
This is also due to the fact that the paper 6 stretches straight, and by repeating this bending and stretching, the hook-side fold line 8x itself becomes flexible, making the patterned paper 6 easier to bend.

If the hook side fold line 8x is bent, the apparent width of the patterned paper 6 becomes shorter than the true width by the length δW, as shown by the two-dot chain line in FIG. The hook 11 is no longer engaged, and as a result, the middle of the pattern paper 6 is placed in the jia card machine 2.
Problems arise in that the patterned paper 6 itself is torn as it hangs down, and the threads 12, warp threads, etc. are cut.

An object of the present invention is to make the hook-side fold of the patterned paper less likely to bend.

Structure of the Invention (Means for Solving the Problems) In order to solve the above-mentioned problems, the present invention provides a belt-like sheet in which holes corresponding to the weaving structure of the fabric are formed in the longitudinal direction. In a patterned paper for a jia card machine, which is formed by forming first folds running in the width direction at predetermined intervals and bending the sheet in a zigzag shape, the patterned paper is formed in the patterned paper sink of the first folds. Near the fold on the side of the hook on which the hook for locking is attached, there is at least one second fold extending from the edge of the paper toward the center to prevent the fold from bending. Adopt the technical means of forming.

(Function) When the hook-side fold of the first fold of the patterned paper tries to bend, part of the force that tries to bend the patterned paper is absorbed by the second fold formed near the first fold. The force changes to a component force in the longitudinal direction of the paper, and as a result, the force trying to bend the hook-side fold becomes smaller.

(Example) Next, an example embodying the present invention will be described based on FIGS. 1 and 2.

The basic structure of the patterned paper of this embodiment is substantially the same as that of the prior art. That is, as shown in FIG. 1, the patterned paper 6 is a sheet S made of paper, and on one side thereof, a strip-shaped reinforcing paper 7 is formed on both sides and at a position approximately 1/3 from both sides in the longitudinal direction. It is attached to L. And the pattern paper 6
In the portion where the reinforcing paper 7 is pasted, intermittent feed holes 10, into which pins (not shown) of the cylinder 3 are engaged, are transparently provided at predetermined intervals. A pattern hole 9 corresponding to the weave structure of the fabric is transparently provided between adjacent reinforcing sheets 7 of the pattern paper.

Further, the patterned paper 6 has a fold 8 (hereinafter, in the present invention, this fold is referred to as a first fold to distinguish it from a second fold described later) for bending it in a zigzag shape in the longitudinal direction L. Width direction W
is formed. Furthermore, hooks 11 for locking the pattern paper 6 to the pattern paper sink 4 are formed protruding outward from both sides of the pattern paper 6 at the portion where the hook-side fold line 8x is formed in the pattern paper 6. ing.

In this embodiment, in the vicinity of the hook-side fold line 8 A second fold 13 is formed on a line parallel to the first fold 8 to prevent the hook-side fold 8x from bending, and a shallow valley-shaped bent portion 8b with the second fold 13 as the valley bottom is formed in the above-mentioned pattern. It is formed on paper 6.

Next, the function and effect of this embodiment will be explained. When the patterned paper 6 is used in the jia card machine 2 for an appropriately long period of time and its rigidity decreases, the hook-side fold line 8x of the patterned paper 6 is bent. Try to narrow the width. However, in the patterned paper 6 of this embodiment, a valley-like bent portion 8b is formed near the hook side fold line 8x by forming the second fold 13, so compared to the patterned paper 6 of the prior art. As a result, the slope of the valley-shaped bent portion 8b becomes steeper, and as a result, part of the force that attempts to bend the patterned paper 6 changes to a component force in the length direction of the patterned paper 6, causing the patterned paper 6 to bend. The force required to do this becomes smaller, making it difficult for the hook-side fold line 8x to bend. Therefore, the patterned paper 6 is reliably secured to the patterned paper sink 4 by the hook 11, thereby preventing damage to the patterned paper 6 and cutting of the thread 12 of the jacquard loom 1, etc.

The present invention is not limited to the above embodiments, but can also be implemented in the following embodiments.

(1) The second fold line 13 can be provided in the vicinity of the hook-side fold line 8x in various ways as long as the effects of the present invention are not significantly impaired.

For example, as shown in FIG. 3, only one second fold 13 can be formed parallel to the hook-side fold 8x and over the entire width direction W of the patterned paper 6.

(2) As shown in FIGS. 4 and 5, the second fold 13 may extend halfway through the patterned paper 6 from both side edges toward the center in the width direction W. This embodiment exhibits the effect that the second fold line 13 can be easily formed on the patterned paper 6.

(3) As shown in FIGS. 6 and 7, the second fold 1 is formed so that a mountain-shaped bent portion 8a having the second fold 13 as the top of the mountain is formed in the patterned paper 6.
3 can also be provided. In this aspect, the seventh
As shown in the figure, one second fold 13 can be formed to form a valley-shaped bent portion 8b of the patterned paper 6.

(4) The second fold line 13 does not necessarily have to be parallel to the hook side fold line 8x, and
The formation position is a position that maximizes the effect of the present invention, for example, about 1 inch from the hook side fold line 8x.
The hook side crease 8x from the position more than mm away.
The position is approximately 1 mm apart from the non-hook side fold line 8y, which is the first fold line 8 different from the first fold line 8.
Preferably, the distance from the hook side fold line 8x is about 2
The distance should be ~300mm.

(5) The pattern paper 6 may have reinforcing paper 7 attached only to both sides, or to both sides and between them. In this aspect, usually the reinforcing paper 7
The intervals between them are defined to be almost the same.

Effects of the Invention As detailed above, the present invention has the excellent effect of preventing the hook from becoming unlatched to the pattern paper sink due to bending of the hook-side fold by simply providing a second fold in the pattern paper. demonstrate.

[Brief explanation of the drawing]

1 to 7 are drawings according to the present invention, in which FIG. 1 is a partial perspective view of an embodiment, FIG. 2 is a partial perspective view showing essential parts of the embodiment, and FIG. 3 is a different aspect from the embodiment described above. FIG. 4 is a partial plan view showing still another embodiment; FIG. 5 is a partial perspective view of the main part of the embodiment shown in FIG. 4; FIGS. 6 and 7 is a partial perspective view of the main part showing how the second fold gives a mountain-like bent part to the patterned paper, FIGS. 8 to 12 are drawings related to the prior art, and FIG. FIG. 9 is a schematic front view of the jia card machine, FIG. 10 is a partial perspective view showing the problems of the prior art, and FIG. FIG. 12 is a partial plan view of the prior art and a partial perspective view showing essential parts of the prior art. 6... Pattern paper, 8... First fold (fold), 8
x...Hook side fold, 9...Crest hole, 13...Second fold, L...Longitudinal direction, S...Sheet, W...
...Width direction.

Claims (1)

[Claims] 1 Form first folds 8 running in the width direction W at a predetermined interval in the longitudinal direction L of a belt-shaped sheet S in which pattern holes 9 corresponding to the weaving structure of the fabric are transparent. In a pattern paper 6 for a jacquard machine made by bending a sheet S in a zigzag shape, the side of the first fold 8 on which a hook 11 for securing the pattern paper 6 to the pattern paper sink 4 is attached. At least one second fold 13 for preventing bending of the fold is formed near the hook-side fold 8x of the pattern paper 6 from the edge toward the center.