JPH0716466B2 - Curtain - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention attaches several guides for guiding cords suspended at predetermined intervals in the width direction to a curtain material at predetermined intervals in the height direction, The present invention relates to a tuck-up curtain in which a lower end of a cord is connected to a curtain fabric, and the cord is pulled to tuck up the curtain fabric to vertically open and close.

[Conventional technology]

This type of curtain is called Roman shade or style curtain, which is usually used by operating several cords together and opening and closing with the lower edge of the curtain horizontally aligned. If you want to change the vertical movement of the required cord up and down by partially tucking up a part of the lower edge to open and close it in multiple steps in an arch shape, select only the required cord by hand and pull strongly (actually Kaisho 61-126
882), the outer diameter of the winding drum of the cord is made larger than that of other drums (Shokai 63-110286, Shokai 64-1587), or the rotation speed of that drum is set faster than other drums. Or the other drum is rotated before the other method (Shokaisho 63-117366).

[Problems to be solved by the invention]

The conventional method used to open and close the tuck-up curtain in multi-steps in an arched shape is that it is difficult to neatly align the lower end edge of the curtain material into an arched shape, etc. The method of changing the diameter and providing the time difference in the rotation speed and the rotation start time has a problem in cost because the cord winding device must be fundamentally modified.

[Object of the Invention]

Therefore, an object of the present invention is to economically obtain a tuck-up curtain that is simple and can surely open and close the lower end edge in multiple steps in a predetermined shape.

[Structure of Invention]

The tuck-up curtain 15 according to the present invention achieves the above object, and is a number that guides each of several cords 11a, 11b, 11c, 11d, 11e ... Which are suspended at a predetermined distance w in the width direction. The guides 12 are attached to the curtain material 13 at predetermined intervals h in the height direction, and the lower ends of the cords 11 are attached.
Tucking curtain 15 that connects 14 to the curtain material 13 and pulls the cord 13 to tuck up the curtain material 13 to open and close it vertically
In one or more required cords 11a (11b ・ 11d ・ 11e
...) is folded back in a U shape in a required guide (12-1) for guiding the cord, and the tip portion 16 of the folded cord is connected to the curtain material 13 directly or through a member (guide 12 / weight 17). It is what

As will be described below with reference to the illustrated embodiment, the guide 12 is formed of a ring sewn on the curtain material 13.

18 is a hoisting device, and the shaft 21 has cords 11a and 11b.
・ A drum 19 with the same outer diameter is installed to move up and down 11c, 11d, and 11e.

The central cord 11c penetrates straight through each guide 12, and a weight 17 larger than the hole diameter of the guide is attached to the terminal 14 protruding from the lowermost guide 12-1.

FIG. 2 shows a connecting portion where the tip end of the cord is connected to the curtain ground via the guide 12 and the weight 17, and the weight 17 attached to the terminal 14 of the cord that has passed through the guide 12 is the guide 12
Since it is larger than the hole diameter of
Is caught by the guide 12 and the curtain material 13 is tucked up.

FIG. 3 shows a connecting portion where the tip portion of the cord is directly connected to the curtain material, and the terminal 14 of the cord is tied to the string 23 sewn to the curtain material 13.

FIG. 4 shows a connecting portion where the tip end portion of the cord is connected to the curtain ground via the hooks 24 and 25, and the hook 25 is attached to the terminal 14 of the cord. It is caught on the hook 24 sewn on.

As described above, the tip portion of the cord can be connected to the curtain material by various methods, and how to connect the tip portion of the cord to the curtain material is not an essential requirement of the present invention.

Auxiliary guides 12-2 'are attached near the lower second guide 12-2 through which the cord 11a (11e) passes on both left and right sides, and the cord 11a (11e) is the lowermost guide 12-. After passing through 1, it is folded back to the auxiliary guide 12-2 ', passes through the auxiliary guide 12-2', and is folded back to the guide 12-1 again.
A weight 17 larger than the hole diameter of the guide is attached to the end of the cord 11a (11e) which passes through the guide 12-1 at the lowermost end again and protrudes through the guide 12-1.

An auxiliary guide 12-1 'is attached to the uppermost part of the guide 12-1 at the lowermost end through which the cord 11b (11d) between the central cord 11c and the cords 11a (11e) on the left and right ends passes. The cord 11b (11d) passes through the guide 12-1 at the lowermost end and is folded back to the auxiliary guide 12-1 ', passes through the auxiliary guide 12-1' and returns to the guide 12-1. And folded back,
After passing through the guide 12-1 at the lowermost end again and passing through the guide 12-1 at the lowermost end, a weight larger than the hole diameter of the guide is attached to the terminal.
17 is attached.

The upper edge of the curtain material 13 is the box frame 20 of the hoisting device 18.
Is attached to.

[Action]

When the shaft 21 of the hoisting device 18 rotates, the respective cords 11a and 11b
・ 11c ・ 11d ・ 11e are simultaneously wound by drum 19 at the same speed.

At this time, the weight 17 of the end of the central cord 11c hits the guide 12-1 at the lowermost end, and the lower end edge of the curtain cloth in the vicinity thereof is
Simultaneously with the start of winding, the drum 19 is tucked up at the same speed as the peripheral surface speed V of the drum 19.

However, with other code 11a (11b / 11d / 11e),
Since the weights 17 of those ends hit the guide 12-1 at the bottom end, the bottom edge 22
However, since the guides 12-1 at the lowermost end are lifted by the folded portion of the guide 12-1 of the cord 11 in addition to the weight 17, the weight 17 and the guide 12-at the lowermost end, respectively. Until 1 rises and hits the auxiliary guide 12-2 '(12-1'), it is tucked up at a speed slower than one-third of the peripheral surface speed V of the drum 19, and the auxiliary guide 12-2. ′ (12
-1 '), it will be tucked up at the same speed as the peripheral speed V of the drum 19.

In order to explain this tuck-up situation in more detail, let the distances between the lowermost guide 12-1 and the auxiliary guides 12-2 'and 12-1' be h and k (h> k) as shown in the figure. , Each cord 11a ・ 11b ・ 11c ・ 11d ・ 11e has a length of 3h by the time the bottom guide 12-1 through which the cords 11a (11e) on both the left and right ends go under the auxiliary guide 12-2 ′. Are wound around the drum 19, and the guide 12-1 at the lowermost end through which the cords 11b (11d) adjacent to each other have already reached the auxiliary guide 12-1 ', and then the peripheral speed V of the drum 19 is reached. It is rising at the same speed as that of cord 11a (11
The guide 12-1 at the bottom of e) is the auxiliary guide 12-
The amount of rise (distance) of the lower edge of the curtain material 13 at the time when it reaches 2 ′ is 3h at the central code 11c, which is the longest,
The length of the cord 11b (11d) is 3h-3k, and the length of the cord 11a (11e) on the left and right ends is the shortest.
As a result, the lower end edge 30 of the curtain material 13 has an arched shape as shown by the chain double-dashed line. After that, each weight 17 is replaced by a drum 19
Since it is pulled up at the same speed as the peripheral surface velocity V, that is, at the same speed as the cord 11, the lower end edge (40) of the curtain material 13 is lifted in an arch shape.

As is clear from the above, the present invention adopts a pulley mechanism in which a part of the guide is a moving pulley in the path of the cord 13, lowers the mounting portion of the guide serving as the moving pulley from the hoisting speed of the drum, and , The speed reduction period is adjusted according to the distance between the guide (12-1) that becomes the moving pulley and the upper guide (12-1 '・ 12-2 ・ 12-2') that it rises and hits. It is composed.

Therefore, whether the pulley mechanism should be introduced to which cord, which guide should be substituted for the moving pulley, or whether the constant pulley (auxiliary guides 12-1 'and 12-2') should be introduced, The moving distance (h · k) as a moving pulley of (12-1), the number of other fixed pulleys and moving pulleys, etc. are determined as appropriate depending on how the lower end edge 22 of the curtain material 13 is drawn. To be done.

Therefore, in the present invention, one or more required codes 11a
(11b, 11d, 11e) is folded back in a U shape in the required guide 12-1 and the tip portion 16 of the folded back cord 16
Is connected to the curtain material 13 via a straight line or a member (guide 12 / weight 17), the other end of the folded cord is referred to as "the tip portion 16 of the folded cord" and the guide is folded back up and down as a fixed pulley or a moving pulley. Also included is the tip of the cord that follows.

Incidentally, the auxiliary guide 12-2 'in the illustrated embodiment is attached for convenience of explanation, and the guide 12-2 can be substituted, and the weight 17 and the terminal 14 of each cord for attaching it.
Can also be joined to the curtain 13 or the bottom guide 12-1.

In addition, a weight is attached to the upper second guide 12-5 so that the upper third guide 12-4 cannot be lifted before being lifted and pushed up. It is also possible to fold the cords 11c up and down in the guide 12-5 so that the lower end edge of the once arched curtain material is aligned horizontally again until it reaches the uppermost guide 12-6. .

〔The invention's effect〕

As is apparent from the above, according to the present invention, the cord is not simply modified by the cord hoisting device 18 or complicated device,
By simply folding the guide 11 and passing it through the guide so as to pass through the guide twice, the lower end edge 22 of the curtain material 13 is opened and closed in a desired shape such as an arch shape or a zigzag shape. The above-mentioned actual development 63-110286 and actual development 64-
Compared with the prior art disclosed in 1587, Shokai 63-117366, etc., the structure is extremely simple and can be easily implemented, so the present invention is practically convenient.

[Brief description of drawings]

FIG. 1 is a rear view of a comb curtain according to the present invention, FIG. 2 is a perspective view of a connecting portion between a tip portion of a cord and a curtain fabric, and FIG. 3 is a perspective view of a connecting portion between a tip portion of a cord and a curtain fabric. FIG. 4 is a perspective view of a connecting portion between the tip portion of the cord and the curtain material. 11 …… code, 12 …… guide, 13 …… curtain, 14…
… Terminal, 15… Curtain, 16… Tip, 17… Weight, 18…
… Hoisting device, 19 …… Drum, 20 …… Frame, 21 …… Shaft, 22,30,40 …… Lower edge,

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) Bibliography Showa 62-148181 (JP, U) Showa flat 4-9191 (JP, U)

Claims (1)

[Claims] 1. A curtain having a plurality of guides 12 for guiding a plurality of cords 11a, 11b, 11c, 11d, 11e suspended in the width direction at a predetermined distance w at a predetermined distance h in the height direction. Attached to the ground 13, connecting the lower end 14 of those cords 11 to the curtain ground 13, pulling the cord 13 to tuck up the curtain ground 13 to open and close the curtain up and down, and at least one required cord 11a (1b, 11d, 11e) is folded back in a required guide 12-1 in a U shape, and the tip portion 16 of the folded back cord is connected to the curtain material 13 directly or through a member. curtain.