JPH10148073A - Pulling-up type collapsible curtain device and pitch-retaining cord thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To costlessly and efficiently produce a pitch-retaining cord keeping nearly constant the distance between the folded ridges at the maximum extended condition of a pulling-up type collapsible curtain. SOLUTION: Flexible looped threads 20 are vertically protruded in multiple stages in a vertical thread 17 arranged on one face side of a collapsible curtain. A cord 13 moving up and down the collapsible curtain can be inserted in the front ends of the looped threads. The underfaces of the folded ridges 10 of the collapsible curtain are supported by the looped threads 20 laid between the vertical thread 17 and the cord 13. In this way, the distance between the folded ridges at the maximum extended condition of the collapsible curtain can be kept nearly constant.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pitch holding cord which is used for holding a gap between folding ridges at the time of maximum extension of a pull-up type folding curtain which is bent in a zigzag shape, and the pitch holding cord. The present invention relates to a pull-up type folding curtain device using a holding cord.

[0002]

2. Description of the Related Art A pull-up type folding curtain that is bent in a zigzag shape is well suited to, for example, a Japanese-style room where a conventional slat opening / closing type blind is difficult to match, and can provide a warm atmosphere to a room space. It is spreading as interior goods.

FIGS. 6 and 7 illustrate the structure of such a pull-up type folding curtain device a.
Is configured to be able to move up and down by raising and lowering the raising and lowering cord c, and to keep the interval L between the folding ridges d and d in the zigzag maximum extension substantially constant by the pitch holding means e.

[0004] By the way, this type of pull-up type folding curtain device a does not have a means for keeping the interval between the folding ridges approximately constant, and when the curtain is lowered, the folding curtain is folded on the lower side. While the mountains overlap in a folded state,
Since there is a disadvantage that the upper portion extends in a substantially single plate shape, a means for maintaining the interval between the folding ridges approximately constant is essential. Therefore, conventionally, the pitch holding means e including the holding cord f, the locking member g, and the holding plate h has been adopted.

The holding cords f are arranged vertically on the back side of the folding curtain b so as to cross the folded ridges d. For example, a locking member g is fixed at every two folded ridges. It becomes. Further, the holding plate h is formed using a transparent rectangular plate, and an insertion hole j for inserting the holding code f and a lifting code c for raising and lowering the curtain are provided at both ends thereof. And an insertion hole m to be inserted. In addition, cut lines p, p communicating with both the insertion holes j, m are formed on the long side n.

The cutting line p is opened to allow the holding cord f and the lifting / lowering cord c to pass through the respective insertion holes j and m of the holding plate h.
Is held from below by the locking member g, the holding plate h is
It will be attached to the fixed position of the holding cord f. Thus, when the folding curtain b is in the maximum extension state, the lower surface r of the required fold d is received by the holding plate h, and the interval between the folds is kept substantially constant.

[0007]

However, the pull-up type folding curtain device having the above-described structure has the following problems. In order to keep the interval between the folded ridges approximately constant, three types of parts, namely, a holding cord f, a locking member g fixed thereto, and a holding plate h having one end q supported by the locking member g are used. When the folding curtain device is manufactured, it is necessary to fix the locking member g to a required portion of the holding cord f by caulking means or the like, and to attach the holding plate h to the holding cord f. In this case, the cutting line p is opened, and the holding cord f and the elevating cord c are inserted through the insertion holes j and m, which requires a troublesome and troublesome operation.

As described above, since a plurality of parts are required and a lot of labor is required for mounting those parts, the conventional folding curtain apparatus has a problem that the manufacturing efficiency is low and the manufacturing cost is increased. There was.

Since the holding plate h is a resin plate and has a certain thickness, when the curtain is completely pulled up as shown in FIG. 8, the holding plate interposed between the folding ridges opens the folded ridges in the folded state. From the state, the vertical thickness of the raised curtain was increased.
In order to properly maintain the interval between the folding ridges in the state where the curtain is lowered, it is preferable to dispose the holding plate for each folding ridge.
There is a problem that the number of holding plates becomes very large, and the vertical thickness of the curtain in the pulled-up state is unnaturally increased by the number.

In order to avoid this, the mounting work of the holding plate is reduced. For example, as shown in FIG. 6, when the holding plates h are arranged at intervals, the number of holding plates used decreases. In addition, the vertical thickness of the curtain in the pulled state can be reduced accordingly. However, as shown in FIG. 8, the folded ridge d in the folded state is substantially in close contact with the portion where the holding plate h is not interposed, but the folded ridge d in the folded state is described above in the portion where the holding plate h is interposed. Open state. As a result, the gap s between the folding ridges at the overlapping portion of the folding ridges is widened and narrowed, and there is a problem that the appearance of the curtain in the raised state is deteriorated.

Further, since the holding plate is formed using a resin plate, when viewed from its mounting side (FIG. 7), light may be reflected on the holding plate and the plate may be conspicuous. There was also a problem that the design feeling of the curtain device was spoiled.

[0012]

The present invention employs the following means to solve the above-mentioned problems. That is, the pitch holding cord according to the present invention is a pitch holding cord for holding the interval between folding ridges at the time of maximum extension of a pull-up folding curtain that is bent in a zigzag shape and is capable of expanding and contracting in the vertical direction at a substantially constant level. It is. Then, on one surface side of the folding curtain, warp threads (including string-like materials) arranged vertically so as to cross the parallel folding ridges project toward the inner space formed by one folding ridge. Flexible loop-shaped yarns are integrally provided at required intervals, and a vertically long elevating cord used to raise and lower the folding curtain can be inserted into a tip portion of the loop-shaped yarn inside the loop. The loop-shaped yarn, which is placed between the warp and the lifting cord, receives the lower surface of the fold.

[0013] In the pitch holding cord, the loop-shaped yarn projecting from the warp yarn is provided corresponding to all the folding ridges arranged in the vertical direction, and also provided corresponding to a selected required folding ridge. There is also. In each of the pitch holding cords, it is preferable that the warp yarn is formed as a knit, and the knitting yarn protrudes to the side of the warp to form a loop-like yarn. Further, it is preferable that the warp yarn is formed as a woven fabric, and the woven yarn is projected to the side of the warp yarn to form a loop-shaped yarn.

[0014] In the pull-up type folding curtain device according to the present invention, the upper end of the pull-up type folding curtain which is bent in a zigzag manner and is vertically expandable and contractable is fixed to the upper end of the opening. A weight bar is provided at the lower end of the folding curtain, and a lower end is fixed to the weight bar, and an elevating cord used for raising and lowering the folding curtain is a widthwise middle portion of both side plates forming each folding mountain. Is inserted upwardly through the insertion hole provided in the hole.
Further, on one surface side of the folding curtain, the warp yarns of the pitch holding cords are arranged vertically so as to cross the folded ridges arranged in parallel, and the upper and lower ends thereof respectively correspond to the upper end of the opening and the weight bar. Each of the loop-shaped yarns is projected into an inner space where a required crest is formed, and the elevating cord is inserted into a tip portion inside the loop. When the tatami curtain is in the maximum stretched state, the warp thread is stretched up and down,
At this time, the loop-shaped yarn, which is placed between the warp and the elevating cord, is configured to receive the lower surface of the folding crest.

[0015]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 3, a pull-up type folding curtain device (hereinafter referred to as a curtain device) 1 according to the present invention.
The upper end 3 of the folding curtain 2 which is bent in a zigzag shape and is capable of expanding and contracting in the vertical direction is connected to the upper end of an opening (a window opening, an opening between rooms, etc.) 5 (in the present embodiment, The lower surface of the curtain box 7) is fixed via the curtain box 7 and a weight bar 9 is attached to the lower end of the folding curtain 2. On the left and right sides of the folding curtain 2, insertion holes 12 are provided at the center portions in the width direction of the side plates 11, 11 forming the folding ridges 10.
A lifting cord 13 having a lower end fixed to each of the upper and lower insertion holes 12 is sequentially inserted upward into each of the vertically arranged insertion holes 12.
The lifting cords 13, 13 of the book are introduced into the curtain box 7, and are drawn out through outlet holes 15 provided at the end of the curtain box 7. Then, by performing an operation of lowering or loosening the elevating cord 13, the elevating operation of the folding curtain 2 can be performed.

In addition, a pitch holding cord 16 is used to keep the interval L (see FIGS. 2 and 3) between the folding ridges of the folding curtain 2 constant. The pitch holding cords 16 are formed on one side (back side) of the folding curtain 2 by warp yarns 17 arranged vertically so as to cross the folded ridges 10 arranged in parallel.
At the same time, the flexible loop-shaped yarns 20 projecting toward the inner space 19 formed by one folding crest 10 corresponding to all of the folding crests 10 are arranged in parallel at required intervals in the vertical direction of the warp. Provided. In the present embodiment, the pitch holding cord 16 is formed as a knit, for example.
0 is formed. It is preferable that the color of the loop-shaped yarn 20 be matched to the color of the folding curtain so as to be inconspicuous.

The upper and lower ends 2 of the warp yarn 17 having the above-described structure
2, are fixed to the upper end (in the present embodiment, the lower surface of the curtain box) 6 of the opening 5 and the weight bar 9 as shown in FIG. The elevating cord 13 is inserted into the tip portion 20a inside the loop.

When the folding curtain 2 is in the maximum extended state in which the folding curtain 2 has a zigzag shape, the warp yarns 17 are stretched up and down.
The loop-shaped yarn 20 which is in a state of being bridged between the ridges 10 receives the lower surface 25 of the ridges 10, whereby the distance L between the folds is kept constant. Then, by pulling up the elevating cord 13, the folding curtain 2 is pulled up as shown in FIG. 4, and the warp yarn 17 is in a densely bent state.

The specific manufacturing procedure of the pitch holding cord 16 is, for example, as shown in FIG. 5, provided at a position separated from the warp 17 by a required distance, a chain knitting thread 26 parallel to the warp 17 is provided. The leading end 27 of the two-folded loop-shaped yarn 20 is held by the waste thread 26, and in a later step, the waste thread 26 is preferably unraveled as indicated by reference numeral 26a to make the loop-like yarn 20 independent. .

[Other Embodiments] In the pull-up type folding curtain device according to the present invention, as long as the interval between the folding ridges can be maintained substantially constant by the pitch holding cord, the loop-shaped yarn can cope with all the folding ridges. It is not necessary to provide them at all, and they may be provided only for the selected crests.

The pitch holding cord is entirely formed as a woven fabric, and the woven yarn may be made to protrude in a loop shape to the side of the warp yarn to form a loop-shaped yarn.

[0022]

According to the pitch holding cord according to the present invention, a pull-up type folding curtain device capable of holding the interval between folding ridges at a constant or substantially constant can be constituted as in the prior art. It has the following excellent effects.

Since the pitch holding cord is integrally provided with a loop-shaped yarn for holding the pitch of the folding ridge, there is no special need for a locking member or a holding plate as in the related art. Further, when manufacturing the pull-up type folding curtain device, there is no need for the conventional manufacturing labor such that each holding plate must be attached to a pitch holding cord or a lifting cord. Therefore, according to the present invention, it is possible to improve the production efficiency and reduce the production cost of the pull-up type folding curtain device.

Since the lower surface of the fold is received by using a thin loop-shaped yarn protruding from the warp, the loop-like yarn is provided between the folded ridges in the folded state as compared with a conventional holding plate having a predetermined thickness. Even in the case of intervening, it is possible to make the folded ridges almost in a close contact state. Because of this,
Even if a loop-shaped yarn is interposed in correspondence with all the folds, the vertical thickness of the folding curtain in the pulled up state may not be so large, and the pulled up state of the curtain may be good. In addition, since there is little problem even if the loop-shaped yarn is interposed in correspondence with all the folds, all pitches of the folds can be kept constant in a state where the curtain is lowered, and the Can improve the appearance of the curtain.

As in the conventional folding curtain device employing the holding plate, the problem that the holding plate shines and the design feeling of the curtain is not impaired does not occur, and the folding curtain device can be configured with a good appearance.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a pull-up type folding curtain device of the present invention.

FIG. 2 is a side view showing a maximum extension state of the pull-up type folding curtain.

FIG. 3 is a partial perspective view seen from a rear surface side.

FIG. 4 is a side view showing the raised state.

FIG. 5 is a front view illustrating a manufacturing process of the pitch holding cord.

FIG. 6 is a side view illustrating a conventional pull-up type folding curtain device.

FIG. 7 is a partial perspective view seen from a rear surface side.

FIG. 8 is a side view showing the raised state.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Pull-up type folding curtain apparatus 2 Folding curtain 9 Weight bar 10 Folding ridge 11 Side plate forming fold ridge 12 Insertion hole 13 Elevating cord 17 Warp yarn 19 Vacancy 20 Loop yarn 25 Lower surface of folding ridge

Claims (6)

[Claims] 1. A pitch holding cord for holding an interval between folding ridges at the time of maximum extension of a pull-up folding curtain which is bent in a zigzag shape and is capable of expanding and contracting in a vertical direction, wherein: On one surface side of the folding curtain, a flexible loop-shaped yarn projecting toward an inner space formed by one folding crest is formed on a warp thread arranged in the vertical direction so as to cross the parallel folding crests, In addition to being provided integrally at required intervals in the vertical direction,
A vertically long elevating cord used for raising and lowering the folding curtain can be inserted into a tip portion inside the loop of the loop-shaped yarn, and a state where the elongate cord is laid between the warp yarn and the elevating cord. A pitch holding cord for use in a pull-up folding curtain, wherein the loop-shaped yarn is configured to receive a lower surface of the folding crest. 2. A pitch holding cord used in a pull-up type folding curtain according to claim 1, wherein a loop-shaped yarn projecting from the warp yarn is provided corresponding to all folding ridges arranged in the vertical direction. . 3. A pitch holding cord used in a pull-up type folding curtain according to claim 1, wherein a loop-like yarn projecting from the warp yarn is provided corresponding to a selected required folding crest. 4. The pull-up according to claim 1, wherein the warp is formed as a knit, and the knitting yarn protrudes to the side of the warp to form a loop-like yarn. Pitch holding cord used for folding curtains. 5. The pull-up according to claim 1, wherein the warp is formed as a woven fabric, and the woven yarn protrudes to the side of the warp to form a loop-shaped yarn. Pitch holding cord used for folding curtains. 6. An upper end of a pull-up type folding curtain which is bent in a zigzag shape and is capable of expanding and contracting in a vertical direction is fixed to an upper end of an opening, and a weight bar is provided at a lower end of the folding curtain. A lifting cord fixed at the lower end to the weight bar and used for raising and lowering the folding curtain is directed upward through an insertion hole provided in a widthwise intermediate portion of both side plates forming each folding crest. The warp of the pitch holding cord according to any one of claims 1 to 5 is arranged vertically on one surface side of the folding curtain so as to cross the folded ridges. The upper and lower ends are fixed to the upper end of the opening and the weight bar, respectively, and each loop-shaped thread is projected into an inner space where a required crest is formed, and the tip inside the loop is formed. Minute, the elevating cord is in the inserted state, and the warp is stretched up and down when the folding curtain is in the maximum extended state, and at this time, the state where the warp is hung between the warp and the elevating cord A pull-up type folding curtain device, wherein the loop-shaped yarn is configured to receive a lower surface of a folding crest.