JP2000080868A - Pleated curtain - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a device for holding the pitches of a pleated curtain, capable of enhancing appearance by preventing exposure of the pitch holding device to the indoor side and of reducing the operating force required for a raising and lowering operation. SOLUTION: Curtain members connected together by connecting ropes 12b and foldable in a zigzag manner are hung from a headbox and can be raised and lowered by a lift device, and a number of pitch holding members 17 have their respective rear ends attached at equal intervals to a pitch holding cord 16 hung and supported from the headbox and have their respective front ends attached at equal intervals to the connecting ropes 12b of the curtain members.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a pitch holding device for a pleated curtain.

[0002]

2. Description of the Related Art A pleated curtain supports a curtain material, which can be folded up and down, suspended from a head box, and the curtain material can be moved up and down by operating a lifting device, so that the amount of light to be collected indoors can be adjusted. It is what it was.

[0003] Curtain materials are generally formed of non-woven fabric,
Pleats (folds) are formed by subjecting the nonwoven fabric to a heat treatment. Further, as shown in FIGS. 7 and 8, there has been proposed a curtain material which can be folded in a zigzag shape by knitting a plate material with a thread.

Some pleated curtains constructed as described above have a pitch holding device for maintaining a constant interval between the pleats when the curtain material is lowered.

[0005] As one type of this pitch holding device, FIG.
As shown in FIG. 8, a pitch holding cord 2 is hung down from a head box 1, loop cords 3 are attached to the pitch holding cord 2 at equal intervals, and the loop cord 3 is positioned between each pleat. There is a loop code 3 in which a lifting code 4 is inserted.

In such a pitch holding device, when the curtain material 5 is lowered, the minimum position of each pleat is defined by each loop cord 3, so that each pleat is maintained at a constant interval.

When the bottom rail 6 is pulled up through the lifting cord 4 by operating the operation cord 7, the curtain material 5 is pulled up. At this time, the pitch holding cord 2 is pulled up together with the curtain material 5.

In the pitch holding device described in Japanese Utility Model Laid-Open Publication No. 6-47584, a pleat hook is attached to a pitch holding cord at equal intervals, and a hook provided at the tip of the pleat hook is connected to each pleat of the curtain material. It is hooked on a bottom hole provided between them.

When the curtain material is lowered, the lowermost position of each pleat is defined by each pleat, and each pleat is maintained at a constant interval. When the curtain material is pulled up, the pitch holding cord and the pleat are applied. Pulled up with curtain material.

[0010]

In the pleated curtain using the pitch holding device shown in FIGS. 7 and 8, the weight of the curtain material 5 acts on each loop cord 3 in a state where the curtain material 5 is lowered. The loop cord 3 strongly rubs against the lifting cord 4.

Therefore, when the curtain member 5 is raised and lowered, the lifting cord 4 is raised and lowered while rubbing with the loop cord 3, so that the operation force required for the lifting operation is increased and the lifting cord 4 or the loop cord 3 is worn. There is a problem that it is easy to be cut.

In the pitch holding device described in Japanese Utility Model Laid-Open Publication No. 6-47584, the hook is exposed on the front surface of the curtain material even if the pitch holding cord and the pleating hook are positioned behind the curtain material. However, there is a problem that the light leaks from the bottom hole while being not preferable in terms of aesthetic appearance.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a pleated curtain pitch holding device capable of preventing the pitch holding device from being exposed to the indoor side, improving the aesthetic appearance, and reducing the operating force required for the elevating operation. is there.

[0014]

According to the first aspect of the present invention, a curtain member which is connected by a connecting cable and is zigzag foldable is hung down from a head box, and the curtain material can be raised and lowered by a lifting device. Base ends of a number of pitch holding members were attached at equal intervals to pitch holding cords suspended and supported from a box, and distal ends of the pitch holding members were attached at equal intervals to connecting cables of the curtain material.

According to a second aspect of the present invention, in the curtain material, a plate material is connected with a warp so as to be foldable in a zigzag shape, and the pitch holding member is attached to the warp at a fold portion of the curtain material.

According to a third aspect of the present invention, in the curtain material, the weft yarn of the fabric is pulled out at regular intervals so that it can be folded in a zigzag shape, and the pitch holding member is attached to the warp yarn at the fold portion of the curtain material.

According to a fourth aspect of the present invention, the pitch holding member attaches a base end of a pitch holding piece to the pitch holding cord,
A hook was formed at the tip of the pitch holding piece, and the hook was hooked to the warp.

According to a fifth aspect of the present invention, in the pitch holding member, a connecting ring is attached to the pitch holding cord, a connecting loop is provided on the warp, and the connecting ring is hooked on the connecting loop.

[0019]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The pleated curtain shown in FIG.
A curtain material 12 is suspended from the head box 11, and a bottom rail 13 is suspended from the lower end of the curtain material 12. The curtain member 12 is configured such that both side portions of a large number of plate members 12a are connected by a plurality of warp yarns 12b and can be folded in a vertical zigzag shape.

At least two elevating cords 14 pass through the curtain member 12, and one end of each elevating cord 14 is connected to the bottom rail 13. The other end of the elevating cord 14 is guided into the head box 11, and is hung down from one side of the head box 11 to be connected to the operation cord 15.

As shown in FIG.
At least two pitch holding cords 16 hang down from the rear surface of the device 1. The pitch holding cords 16 are connected at regular intervals to the base ends of a large number of pitch holding pieces 17 formed of synthetic resin.

As shown in FIG. 4, the pitch holding piece 17
A hook portion 18 is formed at the distal end portion of the rim. As shown in FIG. 3, one of the warp yarns 12b intersecting between the plate members 12a, that is, at the pleat portion, is hooked on the hook portion 18.

By operating the operation cord 15 and moving the bottom rail 13 up and down, the curtain member 12 is folded upward or stretched downward. Further, the curtain material 12 is always suspended and supported by the pitch holding cord 16 in a state of being bent at equal intervals.

With the pleated curtain configured as described above, the following operational effects can be obtained. (1) When the curtain material 12 that allows the plate material 12a to bend in a zigzag shape is lowered, the interval between the pleat portions can be kept constant. (2) Since the warp yarn 12b is hooked on the pitch holding piece 17 at the pleated portion, the pitch holding piece 17 is not exposed on the front surface of the curtain material 12. Therefore, it is possible to prevent the pitch holding cord 16 and the pitch holding piece 17 from being exposed to the indoor side, thereby improving the appearance. (3) Since the pitch holding piece 17 does not rub against the elevating cord 14, the operating force required for the elevating operation of the curtain material 12 can be reduced. (4) Since the pitch holding piece 17 does not rub against the lifting cord 14, cutting due to wear of the lifting cord 14 can be prevented. (5) After attaching the curtain member 12 into which the lifting cord 14 has been inserted to the head box 11, the pitch holding cord 16
Can be hooked on the warp 12b of the pleated portion, so that the assembling work can be easily performed. (6) Since it is not necessary to provide a through hole for attaching the pitch holding piece 17 to the plate member 12a, it is possible to prevent light from leaking from such a through hole.

The pleated curtain may have the following configuration. As shown in FIG. 5, a connection loop 19 is formed on the pleat portion of the warp thread 12b by sewing, and the pitch holding cord 1 is formed.
The connecting rings 20 attached at equal intervals to 6 may be inserted through the connecting loop 19. As shown in FIG. 6, the curtain material may be constituted by the cloth 21 that can be preferentially bent at the portion where the weft yarn has been removed by pulling out the weft yarn at equal intervals. In the curtain material using such a cloth 21, the pitch holding piece 17 may be hung on any of the warp yarns 22 at the portion where the weft yarn is removed. As the plate member 12a constituting the curtain member 12, wood, synthetic resin containing wood powder, or a metal plate of any material may be used. -Instead of the warp yarn 12b, the plate material 12a may be foldably connected by a band-like connecting band or a connecting tape.

[0026]

As described in detail above, the present invention prevents the pitch holding device from being exposed to the indoor side, improves the aesthetic appearance, and reduces the operating force required for the vertical movement of the pleated curtain. An apparatus can be provided.

[Brief description of the drawings]

FIG. 1 is a front view showing a pleated curtain.

FIG. 2 is a side view showing a pleated curtain.

FIG. 3 is a side view showing a pitch holding device.

FIG. 4 is a plan view showing a pitch holding device.

FIG. 5 is a plan view showing another example of the pitch holding device.

FIG. 6 is a front view showing another example of the curtain material.

FIG. 7 is a side view showing a conventional pleated curtain.

FIG. 8 is a side view showing a conventional pitch holding device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 Head box 12 Curtain material 12b Connecting line (warp) 16 Pitch holding code 17 Pitch holding member (Pitch holding piece) 20 Pitch holding member (Connection ring)

Claims (5)

[Claims] 1. A pitch holding cord which is suspended from a head box by a curtain material which can be folded in a zigzag shape by being connected by a connecting cable, and which can be lifted and lowered by an elevating device, and supported by being suspended from the head box. A plurality of pitch holding members having base ends attached thereto at regular intervals, and leading end portions of the pitch holding members attached to connection lines of the curtain material at regular intervals. 2. The curtain material according to claim 1, wherein a plate material is connected by a warp so as to be foldable in a zigzag manner, and the pitch holding member is attached to the warp at a fold portion of the curtain material. The pleated curtain described. 3. The curtain material, wherein weft yarns of the fabric are pulled out at regular intervals so as to be foldable in a zigzag manner, and the pitch holding member is attached to warp yarns at fold portions of the curtain material. Item 10. A pleated curtain according to item 1. 4. A pitch holding member, wherein a base end of a pitch holding piece is attached to the pitch holding cord, a hook is formed at a tip end of the pitch holding piece, and the hook is hooked on the warp. The pleated curtain according to claim 2, wherein the pleated curtain is stopped. 5. The pitch holding member according to claim 1, wherein a connecting ring is attached to the pitch holding cord, a connecting loop is provided on the warp, and the connecting ring is hooked on the connecting loop. Item 4. A pleated curtain according to any one of Items 2 to 3.