JPH0847449A - Curtain pleating device - Google Patents

Abstract

(57) [Abstract] [Purpose] It is possible to perform pleat formation by ironing by mechanical force, shorten the time required for pleat formation, reduce the variation in pleat width, and perform ironing part by part. Relieves the tension applied to the Teshiki string and prevents it from breaking. [Structure] A rod-shaped clamp 16 capable of holding the ceiling of the curtain 1 is fixed to a large number of sliders 13a to 13d arranged along the first guide rail 11, and the sliders are divided into groups of several. Then, the sliders in each group are connected at equal intervals by a pantograph 25 that expands and contracts in parallel with the first guide rail, and adjacent sliders between two adjacent groups are connected by a string-like body 28 of a predetermined length. The slider 13a at one end is connected to the movable table 30 that moves forward and backward by a mechanical force along the second guide rail 12 at any time, and the movable table is moved forward and backward by mechanical drive.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for forming a large number of vertical pleats on the top of a curtain.

[0002]

2. Description of the Related Art As a method for forming a fold on the top of a curtain, a plurality of cords are laid in the width direction on the back of the top of the curtain, and some of them are provided in advance on the back of the curtain at predetermined intervals. A method is known in which the loop or bag-shaped portion is inserted, and then the above-mentioned string is stretched, and the top part of the curtain is squeezed to one end along this string to pull it by hand.

FIG. 7 shows an example of a curtain used for forming the folds described above. A core tape 2 which is long in the width direction is attached to the back surface of the top of the curtain 1 by sewing its peripheral edge, and a seam line 3 is formed. The inside forms a bag. A large number of holes 3a are opened in the core tape 2 in three rows in the width direction and the hole intervals in each row are alternately arranged in a wide and narrow manner, and the ironing string 4 arranged in each hole row is the hole. It is inserted into a loop-shaped part composed of parts with a narrow interval. Then, conventionally, the above-mentioned three ironing strings 4 are horizontally stretched to suspend the curtain 1, and the core tape 2 is manually squeezed to one side to pull the curtain 1 as shown in FIG. 1 and a part of the core tape 2 are projected to the front side in a loop shape and folds 5
Had formed.

[0004]

Conventionally, as described above, the squeezing was done manually, so in order to form a fold on a curtain having a width of several meters, the entire width is divided into a large number of parts and the parts are arranged in order. It is necessary to squeeze the part in one direction, and because the part on the opposite side of the squeezing direction is tense with respect to the part where the folds occur, it is necessary to squeeze the same part multiple times, and therefore the folds It takes a lot of time and labor to form a crease, for example, in the case of forming a pleat on a curtain with a width of 10 meters, two workers need a working time of 30 minutes, and there is a large variation in the width of the pleat. was there.

In order to solve this problem, a large number of sliders are arranged along a horizontal guide rail, a fixing block is provided on one end side of the guide rail, and a ceiling portion of the curtain is attached to these sliders and fixing blocks. Fix a rod-shaped clamp that can be clamped, and connect the above-mentioned fixed block and slider with a stretchable pantograph at equal intervals in a row, and extend this pantograph.
With the ironing string tightened, hold the curtain top part with the above clamp, and then pull any slider to the fixed block side by mechanical force to narrow the intervals of many clamps all at once and squeeze the curtain. A fold forming device has been proposed (see Japanese Patent Application No. 6-15839).

However, in the above-mentioned prior invention, since all the clamps attached to the top of the curtain are moved simultaneously while ironing along the ironing string, when the ironing string slips poorly, the ironing string is attached. Large tension acts on
This ironing string was sometimes cut.

The present invention is a device for forming pleats by ironing with a mechanical force, wherein the clamps attached to the top of the curtain are divided into several groups, and the intervals are individually narrowed for each group to make the ironing string. It is designed to relieve the tension applied to and prevent the cutting.

[0008]

A first means is to arrange a first guide rail and a second guide rail side by side, and arrange a large number of sliders along the first guide rail, and to arrange the curtain on the slider. The clamps for holding the parts are fixed, the above sliders are divided into several groups, and the sliders in each group are connected at equal intervals by a pantograph that expands and contracts in parallel with the first guide rail. The adjacent sliders of the two groups are connected to each other by expansion restricting means for restricting the distance between the sliders from expanding beyond a limit, and a movable base that moves back and forth along the second guide rail by a mechanical force is provided. A connecting means is provided for connecting the moving table and the slider at one end of each group of the sliders at any time.

In the above-mentioned first means, as the expansion restricting means for restricting the distance between the sliders from expanding beyond a limit, a flexible string-shaped string, chain, transmission chain or the like is used. Body, two or more rod-shaped links flexibly linked, or a slide rod mechanism in which a slide rod is inserted into a guide fixed to two adjacent sliders, and stoppers are fixed to both ends of the slide rod, etc. Is exemplified. The maximum distance between the adjacent sliders set by the enlargement restriction means is set to be equal to the distance between two adjacent sliders in the group when the pantograph is expanded. Then, any two adjacent sliders in the group in the first means are
The expansion restriction means similar to the above can be used for connection.

A second means is to arrange the first guide rail and the second guide rail side by side, arrange a number of sliders along the first guide rail, and hold the top of the curtain by the sliders. The clamp is fixed, two adjacent sliders are connected to each other by expansion restricting means for restricting the distance between the sliders from expanding beyond a limit, and the sliders are divided into groups of several. A moving table that is moved forward and backward by a mechanical force along the second guide rail, and a connecting means for connecting the moving table and the slider at one end of each group of the sliders at any time. To do.

In the above first means and second means,
The first guide rail and the second guide rail may be provided as long as they are provided in parallel and close to each other, and the direction thereof may be either the horizontal direction or the vertical direction. However, the work becomes easier in the horizontal direction, and the installation area becomes smaller in the vertical direction.

Among the many sliders arranged in a line,
Several sliders arranged in series form one group.
The number of sliders forming one group varies depending on the degree of easiness of squeezing due to the material of the ironing string or the curtain, but 4 to 8 are preferable, and if 3 or less, it takes a long time to form pleats, and 9 If it becomes above, it will become easy to cut an ironing string.

According to the first means, the sliders in this one group are connected by a pantograph so that they can expand and contract.
Adjacent sliders between an arbitrary group connected by this pantograph and another group adjacent thereto are connected by the expansion restricting means. On the other hand, in the second means, two sliders of the total number are sequentially connected by two by the enlargement restricting means.

In the first and second means, the connecting means for connecting the movable table which moves back and forth along the second guide rail and the slider at one end of the group of sliders to each other, remotely connects the movable table and the slider at one end. Any plate may be used as long as it can be connected or separated at any time by an operation. For example, a plate fixed to the slider at the one end is provided with a connecting pin or hook which is provided on the moving table and is moved back and forth by electromagnetic force or air cylinder operation. The slider can be moved as the movable table advances.

In the above-mentioned first and second means, adjacent two
When the distance between the individual sliders is narrowed, a fold is formed on the curtain, but it is preferable to provide reduction regulating means for preventing the distance between the adjacent sliders from becoming narrower than the limit so that the folds are made uniform. An example of the reduction restricting means is a spacer inserted between arbitrary adjacent sliders. However, in the first means in which the sliders in the group are connected by the pantograph, only the gap between any two adjacent sliders is regulated by the spacer, and the rest is automatically regulated by the action of the pantograph.

The clamp for clamping the curtain top may be any clamp that does not clamp the ironing string when clamping the curtain top. For example, a rod-shaped fixed bar and a movable bar that can be pressed against the fixed bar. A plurality of contact plates are formed at intervals on the side of the movable bar facing the fixed bar, and the contact plate is in contact with the ironing string inserted in the top of the curtain and the middle of the ironing string. Preferred are In this case, the movable bar can be provided on both the front and back surfaces of the fixed bar, and the curtain can be sandwiched between the front and back surfaces of the fixed bar. In addition,
It is possible to prevent the curtain from slipping by forming unevenness or implanting needles on the surface of the contact plate.

[0017]

In the first means, the pantograph and the expansion restricting means are extended, and in this state, the clamp fixed to the lower end of each slider holds the portion of the curtain top part that is not the ironing string, and this ironing string is attached. Hold in tension by any means. Next, when the movable table is moved to the position of the slider at one end of the first group on the one end side, the two are connected, and the movable table is moved to the slider at the other end of the first group, the slider interval of the first group is narrowed. The curtain top is squeezed by this, and a fold is formed. Next, the connection between the movable base and the first group is released, the movable base is moved to one end of the second group and connected to the slider at the one end, and the movable base is moved forward to narrow the slider gap of the second group, and the folds are formed. To form. In the same manner, the slider spacing of the final group is narrowed and pleats are formed.

During this time, when forming the folds of the second group,
Expansion regulation means between the first and second groups has been expanded
The slider of the group is pulled, the expansion restricting means between the second and third groups is extended to form the folds of the third group, and the slider of the second group is pulled. The slider of the group is pulled by the expansion restricting means. Therefore, when the fold formation of the final group is completed, the slider spacings of the groups other than the final group are widened again. Therefore, the movable table is retracted, and the slider spacings of the first group and the second group are reduced in the same manner as described above. Reduce the slider spacing to the penultimate group and recreate the pleat. Then, the movable table is retracted again, and the slider distance is narrowed to the third last group. Hereafter, by repeating this,
The pleats are completed by pulling all the sliders to the other end. Then, after the pleat formation is complete, the clamp is loosened and the curtain and ironing string are removed.

In the first means, however, since the sliders in the group are connected by the pantograph, by moving the slider at one end, all the other sliders except the slider at the other end move in unison. Moreover, since the moving speed of the slider increases in proportion to the distance from the slider at the other end, the folds are formed uniformly and simultaneously with respect to the entire width of the curtain. Then, after removing the curtain, the movable table is connected to the slider at one end of the first group, and the movable table is moved to one end of the second guide rail, so that the pantograph of the first group and the expansion between the first and second groups are enlarged. Regulatory measures,
The pantograph of the second group, the expansion restricting means between the second and third groups, etc. are expanded in this order and returned to the initial position. When any two adjacent sliders in the group are connected by the expansion restricting means, the expansion of the pantograph is limited, and the slider spacing is set to a predetermined value when the moving table is stopped.

On the other hand, in the second means, since all the sliders are connected by the expansion restricting means having a predetermined length, the slider at one end of each group is connected to the moving base and the moving base is moved to the other end side. Then, the slider at one end pushes the second slider to move the second slider, and then the second slider pushes the third slider to move the third slider. Are sent in sequence. Then, when the slider in the group is pulled to the other end, the connection between the moving base and the slider at one end is released, and the moving base moves and is connected to the slider at the one end of the second group. Otherwise, in the same way as the first means, the entire number of sliders are moved to the other end, and the entire width of the curtain is pleated, and then the curtain is removed.

The above-mentioned clamp is formed by a rod-shaped fixed bar and a movable bar which can be pressed against the fixed bar, and a plurality of abutting plates are provided on the movable bar, so that the abutting plate between the fixed bar and the movable bar is provided. The top part of the curtain can be clamped to the upper part of the curtain, and the plate can be clamped over a wide range in the vertical direction without contacting the ironing string. Since the movable bars are provided on both the front and back surfaces of the fixed bar, the top of the curtain can be sandwiched in parallel between the front and back surfaces of the fixed bars arranged in a row.
It is possible to form folds simultaneously for two narrow curtains, and to fold a wide curtain in half so that the fold hangs on the fixed bar of the fixed block so that one half of the curtain is On the front side, the opposite half can be sandwiched on the back side to simultaneously please the entire width of the curtain across the front and back.

[0022]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT In FIG. 1, 10 is a horizontal beam,
Along the lower surface of the horizontal beam 10, the first guide rail 1
1 and a second guide rail 12 is fixed along the side surface. Sixteen sliders 13a, 13b, 13c, 13 along the lower surface of the first guide rail 11
d are mounted in a line. These 16 sliders 13
a, 13b, 13c and 13d are divided into four groups each including four. Four sliders 13a, 13b, 13c, 13d spaced apart on the right side of FIG. 1 and four sliders 13a, 13b, 13 closely aligned in the center
c and 13d respectively form the above-mentioned one group.

A rectangular cylindrical clamp holder 14 is fixed to the lower surface of the fourth slider 13d located at the right end of the group (see FIG. 2), and the connecting pin 15 is vertically connected to the lower surface of the clamp holder 14. The fixing bar 17 of the toggle clamp 16 is fixed to its lower end in a hanging shape. The fixing bar 17 is formed of a pipe having an oval cross section (see FIG. 3).
U) on the flat parts on both front and back surfaces (both left and right in FIG. 2).
The bracket 18 comprises a short link 19 having one end connected to the upper end thereof, a bell crank 20 connected to the lower end thereof, and an operation arm 21 connecting the bent portion of the bell crank 20 and the other end of the short link 19. Bell crank 20
Is attached to the downward long arm portion of the bell crank 20 in parallel with the fixed bar 17, and the movable bar 22 faces the fixed bar 17. The three contact plates 23 made of urethane rubber are fixed to each other with a space therebetween, whereby the toggle clamps 16 are formed on both sides of the fixing bar 17.

The above-mentioned clamp holder 14 or toggle clamp 16 is similarly provided on the first slider 13a to the third slider 13c. Then, the first slider 13a to the fourth slider 13d are connected by the pantograph 25 in a row at equal intervals. This pantograph 25 (see FIGS. 1 and 3) has a first slider 13a.
One end of each of the two short links 25a is connected to the pin 15 at the lower end of the fourth slider 13d, and a long link having a length twice that of the short link 25a is provided between the short links 25a at both ends. Two 25b are combined in an X shape so that a large number of diamonds are formed between the links, and the intersection of the X shape is connected to the pin 15 at the lower end of the intermediate second slider 13b and the third slider 13c. It was done.

As shown in FIG. 4, the clamp holder 14 fixed to the first slider 13a has a width on the right side thereof which is substantially equal to that of the clamp holder 14 and a height which is slightly higher than that of the clamp holder 14. The L-shaped connecting fitting 26 is fixed with the horizontal portion 26a facing upward. Further, the L-shaped coupling fitting 27 is also fixed to the clamp holder 14 fixed to the second slider 13b (see FIG. 5) with the horizontal portion 27a facing upward as described above. Then, the pin hole 2 is formed in the horizontal portion of the connecting fitting 26 fixed to the first slider 13a.
6b is drilled. Further, a string-like body (enlargement restricting means) 28 which connects one of the fourth sliders 13d of the two adjacent groups and the other first slider 13a has one end planted in the clamp holder 14 on the lower surface of the fourth slider 13d. The lock pin 29 is provided and the other end is the first slider 1
It is fixed to a locking pin 29 that is planted in a connecting fitting 26 that is integral with 3a. In addition, the third slider 13c and the fourth slider 13d, which are two sliders in the group.
The clamp holders 14, 14 respectively fixed to the above are connected by the string-like body 28 in the same manner as described above.

On the other hand, a slide block 31 is attached to the second guide rail 12, a vertical base plate 32 is fixed to this slide block 31, and the bottom plate 3 is attached to the lower end of the vertical base plate 32.
3, and an upper surface arm 34 (see FIG. 1) is fixed to the upper end thereof, and a drive belt 35 running in the horizontal direction is connected to the upper surface arm 34 to form a movable table 30.
A shirring air cylinder 36 (see FIG. 4) is fixed to the rear surface of the vertical base plate 32 at one end side with the piston rod 36a facing downward, and a connecting pin 37 fixed to the lower end of the vertical base plate 32 is attached to the vertical base plate 32. Fixed pin guide 3
8 guide holes. Further, an interval setting air cylinder 39 (see FIG. 5) is fixed adjacent to the shirring air cylinder 36 with the piston rod 39a facing downward, and a spacer 40 fixed to the lower end thereof is provided with a spacer 40.
It penetrates through the opening provided in the bottom plate 33 at the lower end of and projects downward.

In the above-described structure (see FIG. 1), the pan bar 25 and the cord-like body 28 are extended and the fixing bars of the toggle clamps 16 (see FIG. 2) fixed to the lower ends of the clamp holders 14 arranged in a line. 17 movable bar 2
2 is pulled up to form a gap between the fixed bar 17 and the contact plates 23 on both sides. That is, in FIG. 1, both front and rear sides (front side and back side of the paper) of the toggle clamp 16 are opened, the wide curtain 1 is folded in half, and the top of the fold is fixed to the fixing bar 17 of the toggle clamp 16 at the right end. The tops on both sides of the fold are inserted from below into the front and rear gaps of the toggle clamp 16 so as to be wound, and then the movable bar 22 is pushed in to press the contact plate 23 against the back surface of the curtain 1. Then, both ends of the ironing string 4 are fixed to one end side (left side in FIG. 1) locking tool.

Next, the drive belt 35 is driven to move the movable table 30, and the connecting pin 37 reaches right above the connecting fitting 26 fixed to the first slider 13a of the first group located at the left end. At this time, the drive belt 35 is stopped. Then, the shirring air cylinder 36 is operated to cause the connecting pin 37 to project downward, and the lower end thereof is inserted into the pin hole 26b of the connecting metal fitting 26 so that the moving base 30 is moved to the first position.
The slider 13a is connected. After that, drive belt 3
When 5 is driven to move the movable table 30 to the right, the first slider 13a of the first group moves to the right, which causes the first slider 13a, the second slider 13b, and the third slider 13c to stand still. The four sliders 13a to 13d are moved forward toward the fourth slider 13d
, That is, the intervals between the four clamp holders 14 are narrowed to form pleats.

When the space setting air cylinder 39 is driven to move the spacer 40 downward during this forward movement, the spacer 40 descends along the right edge of the upper edge of the connecting fitting 26 integral with the first slider 13a. , This spacer 4
When 0 comes into contact with the connecting fitting 27 that is integral with the second slider 13b as the first slider 13a moves forward, 4
The individual clamp holders 14 continue to move forward while keeping the interval constant, and when the fourth slider 13d reaches a predetermined distance before the first slider 13a of the second group, the above-mentioned forward movement is stopped.

Next, the movable table 30 is connected to the first slider 13a of the second group and the second group is moved forward to form a fold. In the same manner, the fold formation by the third group and the fold formation by the fourth group are sequentially performed in the same manner. After that, the movable table 30 is retracted to the first group,
Pleating by the group, pleating by the second group and pleating by the third group are performed in sequence. Subsequently, the movable table 30 is retracted again, and pleats are formed by the first group and the second group. After that, the movable table 30 is retracted again, and the pleats are formed by the first group to complete the plication. In the pleating operation described above, when only the movable bar 22 on one side of the toggle clamp 16 is used, the curtain 1 having a narrow width is used.
Fold formation can be performed.

By changing the thickness of the spacer 40, the distance between the adjacent sliders 13a to 13d, that is, the distance between the clamp holders 14 is changed, and the height of the folds is changed. In the embodiment shown in FIG. 6, instead of the interval setting air cylinder 39 of FIG.
9A is used so that the protruding length of the piston rod 39a can be changed in two steps, and a step portion is formed in the spacer 40 at the tip, and the protruding length of the piston rod 39a is shortened so that the tip 40a of the spacer 40 is When it is interposed between the first connecting metal fitting 26 and the second connecting metal fitting 27, the slider interval becomes narrow, and the above-mentioned protruding length is lengthened to make the base portion 4 of the spacer 40.
When 0b is interposed between the first connecting metal fitting 26 and the second connecting metal fitting 27 (state shown in the drawing), the slider interval is widened.

In the above embodiment, the pantograph 2 connecting the sliders 13a to 13d in the group 2
5 is eliminated and, instead, the adjacent sliders 13a and 13b,
13b and 13c, and 13c and 13d, that is, two adjacent clamp holders 14 are used for connecting the groups, respectively.
Can be connected with the same. However, the spacer 40 in this case is composed of two adjacent clamp holders 1.
It is preferable to fix each of the four facing surfaces. Further, the length of the clamp holder 14 can be increased and replaced with the spacer 40. Further, even if the connecting metal fittings 26 for connecting to the moving table 30 are fixed to the respective clamp holders 14 of all the sliders 13a to 13d, the moving table 30 is controlled to move back and forth to be connected to any sliders 13a to 13d. Good.

[0033]

According to the invention described in claim 1, a rod-shaped clamp capable of holding the top of the curtain is fixed to a large number of sliders arranged along the first guide rail,
Also, divide the above sliders into several groups, connect the sliders in each group at equal intervals with a pantograph that expands and contracts in parallel with the first guide rail, and expand adjacent sliders between two adjacent groups. By connecting with a restricting means, the slider at one end in the above-mentioned group and the movable table that moves forward and backward along the second guide rail by mechanical force are connected at any time,
Since this moving base is moved back and forth by mechanical drive, after the top part of the curtain is clamped by the clamp in the extended state of the pantograph and the enlargement restricting means, the moving base is moved to one end of each group at any time. By connecting and advancing and retracting the sliders, it is possible to move the plurality of sliders group by group from one end side to the other end side to form pleats by one group. Therefore, the ironing method pleating can be performed by a mechanical force, and the ironing string is not excessively tensioned and the ironing string is not cut. Further, since the sliders in one group are connected by a pantograph, the slider intervals do not vary.

According to the invention described in claim 2, in the invention described in claim 1, any two adjacent sliders in the group are restricted from expanding a distance between the sliders beyond a limit. Therefore, the pantograph does not expand beyond a certain limit, and the distance between the sliders can be made constant because the enlargement restricting means for connecting the pantographs is connected.

According to the invention described in claim 3, the pantograph of the invention described in claim 1 is abolished, and instead, the adjacent sliders are connected to each other by the expansion restricting means. The movable table can collect the pleats from one end to the other end side by progressive feeding, and can perform crease formation in the same manner as in the invention according to claim 1 with mechanical force, Excessive tension does not occur. And, since the pantograph is not used, the mechanism is simplified accordingly.

According to a fourth aspect of the present invention, in the invention according to the second or third aspect, a gap regulating means is provided for regulating a gap when the gap between the adjacent sliders is narrowed. Therefore, uniform folds are formed.

According to the invention described in claim 5, in the invention described in any one of claims 2 to 4, the clamp is composed of a fixed bar and movable bars on both front and back surfaces thereof. And one curtain with a narrow width can be attached to each of the back sides to form two folds at the same time. Also, a curtain with a wide width can be folded in two and sandwich one side on the front side and the other side on the back side. Pleats can be formed simultaneously across the width of the straddling curtain.

[Brief description of drawings]

FIG. 1 is a front view of a main part of an embodiment of the present invention.

FIG. 2 is a sectional view taken along the line AA of FIG.

FIG. 3 is a sectional view taken along line BB of FIG.

4 is a cross-sectional view taken along the line CC of FIG.

FIG. 5 is an enlarged front view of the central portion of FIG.

FIG. 6 is a front view of the modified example of FIG.

FIG. 7 is a rear view of the curtain top portion.

FIG. 8 is a cross-sectional view of a pleated curtain.

[Explanation of symbols]

1: Curtain, 2: Core tape, 3: Seam line, 4: Ironing string, 5: Fold, 10: Horizontal beam, 11: First guide rail, 12: Second guide rail, 13a, 13b, 13
c, 13d: slider, 14: clamp holder, 16:
Toggle clamp, 17: fixed bar, 21: working arm,
22: movable bar, 23: contact plate, 25: pantograph, 2
5a: short link, 25b: long link, 26, 27: connecting metal fittings, 28: string-like body (enlargement restricting means), 29: locking pin, 30: moving base, 31: slide block, 32: vertical base plate, 33: bottom plate, 34: upper arm, 35: drive belt, 36: shirring air cylinder, 37: connecting pin, 39: spacing setting air cylinder, 40: spacer (reduction regulating means).

Claims (5)

[Claims] 1. A first guide rail and a second guide rail are arranged side by side, and a large number of sliders are arranged along the first guide rail, and a clamp for holding the top of the curtain is fixed to the slider. , And divide the above slider into several groups, and set the sliders in each group to the first group.
Pantographs that expand and contract in parallel with the guide rails are connected at equal intervals, and adjacent sliders between two adjacent groups are connected by expansion restricting means for restricting expansion of the intervals between the sliders beyond a limit. A moving table which is moved forward and backward by a mechanical force along the second guide rail, and a connecting means for connecting the moving table and the slider at one end of each group of the sliders at any time. Curtain fold forming device. 2. The curtain pleats according to claim 1, wherein any two adjacent sliders in the group are connected by expansion restricting means for restricting the distance between the sliders from expanding beyond a limit. Forming equipment. 3. A first guide rail and a second guide rail are arranged side by side, and a large number of sliders are arranged along the first guide rail, and a clamp for holding the top of the curtain is fixed to the slider. And two adjacent sliders are connected to each other by expansion restricting means for restricting the distance between the sliders from expanding beyond a limit, and the sliders are divided into groups of several units. (2) A fold of the curtain characterized in that a moving table which moves forward and backward by a mechanical force is provided along the guide rail, and a connecting means is provided for connecting the moving table and the slider at one end of each group of the sliders at any time. Forming equipment. 4. The curtain pleating apparatus according to claim 2 or 3, wherein the reduction regulating means is provided to prevent the distance between adjacent sliders from becoming smaller than a limit. Fold forming device. 5. The curtain pleat forming apparatus according to claim 2, wherein the clamp is composed of a fixed bar and movable bars on both front and back surfaces thereof.