JP2004052343A - Vertical blind - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vertical blind for preventing looseness of an operation cord laid in a head rail. <P>SOLUTION: One end of the operation cord 18 is connected to the forefront carrier 12A in the head rail 10. The other end of the operation cord 18 is conducted up to one end part of the head rail 10, and is introduced into the head rail 10 by turning after being suspended from the one end part, and is also connected to the forefront carrier 12A by turning after being conducted up to the other end part of the head rail 10. A part suspended from the one end part of the head rail 10 of the operation cord 18 becomes an operation part 18a, and the forefront carrier 12A and a succeeding carrier 12 can move along the head rail 10 by operating the operation part 18a. A cord weight 30 is installed in the operation part 18a, and a turning part of the operation cord 18 of the operation part 18a inserts the cord weight 30. A stopper 26b is arranged on an operation bar 26 for regulating an upward movement of the cord weight 30. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a vertical blind.
[0002]
[Prior art]
In a conventional vertical blind, a louver is hung from each of a plurality of carriers movably arranged in a head rail, and a subsequent carrier can be moved by moving a leading carrier among the plurality of carriers. ing. Then, one end of the operation cord is connected to the leading carrier in the head rail, the other end of the operation cord is guided to one end of the head rail, and after being suspended from the one end, turned and introduced into the head rail. Further, after being guided to the other end of the head rail, the head carrier is turned and connected to the leading carrier, and the operating part suspended from one end of the head rail of the operation code is operated, whereby the leading carrier is operated. And the subsequent carrier can move along the head rail. Furthermore, a rotation shaft is arranged in the head rail, a rotation transmission mechanism for transmitting the rotation of the rotation shaft to the louver is provided in each carrier, and the operation shaft suspended from one end of the head rail is operated to operate the rotation shaft. , And the louver is rotatable via a rotation transmission mechanism.
[0003]
In such a vertical blind, since the operation code is routed from one end to the other end in the head rail almost in the width direction of the head rail, it is necessary to prevent the operation code from being loosened in the head rail. There is. For this reason, a tension is always applied to the operation code by attaching a code weight to an operation portion hanging down from one end of the head rail of the operation code.
[0004]
[Problems to be solved by the invention]
However, as the product width increases, the length of the operation cords routed in the head rail increases, and the weight increases, so that the cord weight alone is not enough to apply tension to the operation codes, As a result, the operation cord is slackened in the head rail, especially when the louver is folded to one side, and the operation cord hanging from the center of the head rail is exposed, which impairs aesthetic appearance or hinders movement of the carrier. There's a problem.
[0005]
In addition, in order to improve the operability of the operation part of the operation code, the length of the operation part hanging down from one end of the head rail is often set relatively long. Therefore, there is a problem that the operation code is blown by the wind and the code weight hits a window glass or the like.
[0006]
In addition, there is also a problem that an operation bar for rotating the louver or another operation code is entangled with an operation code for opening / closing, making it difficult to operate. On the other hand, Japanese Patent Publication No. Sho 63-21679 discloses a method for preventing entanglement between operation codes. According to this method, operation codes are separated from each other by an alignment guide. Although the entanglement is prevented by this, it is not possible to prevent the operation code from being swung or the operation code from being loosened.
[0007]
The present invention has been made in view of the above problems, and an object of the present invention is to provide a vertical blind that can prevent a slack of an operation cord routed in a head rail. Another object of the present invention is to provide a vertical blind capable of preventing the operation code from being swung and preventing the operation rod from being entangled with the operation rod, in addition to the above objects.
[0008]
[Means for Solving the Problems]
In order to achieve the above object, according to the first aspect of the invention, a louver is suspended from each of a plurality of carriers movably arranged in a head rail, and each carrier is moved by moving a leading carrier. Carriers can move in the same direction,
One end of the operation cord is connected to the leading carrier in the head rail, the other end of the operation cord is guided to one end of the head rail, and after being hung down from the one end, turned and introduced into the head rail, After being guided to the other end of the head rail, the head rail is turned and connected to the leading carrier, and the part of the operation cord that is suspended from one end of the head rail becomes an operation unit, and the operation unit is operated. The leading carrier and the succeeding carrier are movable along the head rail, and a rotating shaft is arranged in the head rail, and each carrier is provided with a rotation transmitting mechanism for transmitting the rotation of the rotating shaft to the louver. By operating the operating rod suspended from one end of the head rail, rotation is transmitted to the rotating shaft, and the louver can be rotated via the rotation transmitting mechanism. In the vertical blind has a,
A code weight is attached to the operation unit, a turning portion of the operation code of the operation unit is inserted through the code weight, and the operation rod is provided with a stopper for restricting upward movement of the code weight. .
[0009]
A cord weight through which the turning portion of the operation code is inserted is attached to the operation section, and the upward movement of the code weight is restricted by the stopper of the operation rod. Upward movement is restricted. Therefore, even if the length of the operation cord routed in the head rail is increased and the weight is increased, the operation portion is prevented from being lifted by the weight. There is no slack.
[0010]
According to a second aspect of the present invention, in the first aspect of the present invention, the cord weight has an engaging portion engageable with the operation rod. Since the operation weight is engaged with the operation rod, the operation cord is connected to the operation rod having a higher rigidity than the cord, so that the operation code can be reliably prevented from being swung by the wind.
[0011]
According to a third aspect of the present invention, in the first or second aspect of the present invention, the cord weight is engaged with the operation rod in a state where the operation rod is rotatable relative to the code weight. Even if the cord weight is engaged, the operation rod can rotate, so that there is no hindrance to the rotation operation of the louver.
[0012]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0013]
FIG. 1 is a front view showing a vertical blind according to an embodiment of the present invention, and FIG. 2 is a perspective view thereof. The vertical blind has a head rail 10 fixed to a window frame or the like. As shown in FIGS. 2 and 3, a plurality of carriers 12 are arranged so that the head rail 10 can slide in the longitudinal direction. . The leading carrier among the plurality of carriers 12 is the master carrier 12A. A louver 14 is suspended from each carrier 12 via a hook 13. Adjacent carriers 12 are connected with the master carrier 12A at the top such that they can be separated or approached with a predetermined interval determined by the spacer 15 as a maximum interval.
[0014]
A carrier moving mechanism for moving the carrier 12 and a louver rotating mechanism for rotating the louver 14 are provided in the head rail 10. The carrier moving mechanism includes an operation code 18 connected to the master carrier 12A. That is, as shown in FIG. 6, one end 18b of the operation cord 18 is connected to the master carrier 12A, and the other end 18c of the operation cord 18 is moved from the inside of the head rail 10 to the control unit 10a at one end of the head rail 10. After being guided and hung down from the control unit 10a, it is turned and introduced again into the head rail 10 and further guided to the end cover 10b at the other end portion of the head rail 10, and then the end cover 10b It turns, is guided in the head rail 10, and is connected to the master carrier 12A.
[0015]
The double part of the operation code 18 derived from the control unit 10a, turned around and introduced into the control unit 10a becomes the operation part 18a, and when one of the double parts of the operation code 18 of the operation part 18a is pulled, the master carrier 12A is pulled by the operation code 18 and moves to one of the inside of the head rail 10, and when the other of the double part of the operation code 18 of the operation section 18a is pulled, the master carrier 12A is pulled by the operation code 18. Move to the other in the head rail 10. When the master carrier 12A moves in the head rail 10, the subsequent carrier 12 is pulled one after another via the spacer 15 according to the movement of the master carrier 12A, or the subsequent carrier 12 is moved by the master carrier 12A. Extruded. Thus, no matter which direction the master carrier 12A moves, the subsequent carrier 12 can move in the same direction as the master carrier 12A.
[0016]
The louver rotation mechanism is connected to a rotation shaft 24 (see FIG. 3) rotatably supported in the head rail 10 by a gear (not shown) provided in the control unit 10a. The carrier 12 includes a rotation transmission mechanism 25 that meshes with the rotation shaft 24. The operation rod 26 is suspended from one end of the head rail 10. The rotation transmission mechanism 25 transmits the rotation of the rotation shaft 24 to the hook 13 of the carrier 12. When the operation rod 26 is operated and rotated, the rotation is transmitted to the rotation shaft 24, whereby the hook 13 of each carrier 12 is rotated via the rotation transmission mechanism 25 of the carrier 12, and the louver 14 is rotated. be able to.
[0017]
As shown in FIGS. 4 and 5, a code weight 30 is attached to a turning portion of the operation code 18 on the operation portion 18 a of the operation code 18, and the operation code 18 is inserted through the inside of the code weight 30. And then wrapped. An engagement ring 30a is formed on a side surface of the cord weight 30, and the engagement ring 30a can be engaged with the rod portion 26a of the operation rod 26. In normal times, the engagement ring 30a is By engaging with the rod portion 26a of the operation cord 26, the operation part 18a of the operation cord 18 is restrained by the operation rod 26. However, since the engagement ring 30a is rotatably engaged with the rod portion 26a, the operation rod 26 can rotate independently of the cord weight 30 regardless of the engagement. Has become.
[0018]
The operation rod 26 is made of a highly rigid material such as a hard synthetic resin or wood. A stopper 26b swelling in the outer diameter direction is provided on the rod portion 26a of the operation rod 26. The height of the stopper 26b is set at a position slightly higher than the engagement ring 30a of the cord weight 30. Therefore, when the engagement ring 30a of the cord weight 30 is engaged with the operation rod 26, a slight play is provided between the stopper 26b and the engagement ring 30a. The engagement ring 30a is allowed to move upward by an amount corresponding to the play, and further upward movement is restricted by the stopper 26b.
[0019]
In the vertical blind configured as described above, the state shown in FIGS. 1 and 2 is such that, in the head rail 10, the master carrier 12A is located at one end of the head rail 10, and the carriers 12 are spaced from each other. The louvers 14 are in a spread state, and thus the louvers 14 are in an extended state.
[0020]
As described above, the cord weight 30 attached to the operation portion 18a is engaged with the rod portion 26a of the operation rod 26. Since the operation rod 26 has higher rigidity than the operation cord 18, the operation of the operation code 18 The movement of the portion 18a is restricted by the operation rod 26. Therefore, it is possible to prevent the operation cord 18 from being blown by the wind and the cord weight 30 from colliding with the window glass.
[0021]
The upward movement of the cord weight 30 is restricted by the stopper 26b of the operation rod 26. Therefore, the weight of the operation cord 18 routed in the head rail 10 over substantially the entire length in the width direction becomes large, and even if the operation part 18a of the operation cord 18 attempts to move upward, the operation part 18a The engaging ring 30a of the inserted cord weight 30 abuts against the stopper 26b and cannot move further upward. Therefore, since the weight of the operation cord 18 is received by the stopper 26b of the operation rod 26 having high rigidity, it is possible to prevent the head rail 10 from being loosened. The weight of the operation cord 18 received by the stopper 26b of the operation rod 26 is further transmitted to the control unit 10a via a gear or the like in the control unit 10a and received there.
[0022]
1 and FIG. 2, when the operation bar 26 is rotated by grasping the grip portion 26c of the operation bar 26 hanging down from one end of the head rail 10, the rotation is transmitted to the rotation shaft 24, and furthermore, The louvers 14 are rotated by the rotation transmitting mechanism 25 in the carrier 12, and the amount of light can be adjusted according to the rotation angle of the louvers 14. At this time, even if the cord weight 30 is engaged, the rotation of the operation rod 26 is not restricted, and the operation rod 26 can rotate independently, so that the operation of the operation rod 26 is not hindered. .
[0023]
Further, from the state shown in FIGS. 1 and 2, by operating the operation portion 18 a of the operation code 18 led out from one end of the head rail 10, one of the double portions of the operation code 18 of the operation portion 18 a is operated. When the cord 18 is pulled downward, the operation cord 18 moves, and the master carrier 12A is pulled by the operation cord 18 and moves in the direction of the control unit 10a of the head rail 10. With the movement of the master carrier 12A, the other carriers 12 are sequentially extruded and gathered on the control unit 10a side, and the louver 14 is folded, so that the opening is opened and light can be completely transmitted.
[0024]
Also at this time, since the upward movement of the code weight 30 is restricted by the stopper 26b of the operation rod 26, the operation cord 18 is routed in the head rail 10 over substantially the entire length in the width direction. Even if the weight of the operation cord 18 is large, the operation cord 18 does not loosen from the opened opening, so that the appearance is not deteriorated.
[0025]
Further, by operating the operation portion 18a of the operation code 18 derived from one end of the head rail 10 and pulling the other operation code 18 of the double portion of the operation code 18 of the operation portion 18a downward, the operation is started. The cord 18 moves, and the master carrier 12A is pulled by the operation cord 18 and moves toward the end cover 10b of the head rail 10. When the master carrier 12A moves, the other carriers 12 are sequentially towed by the spacer 15, and return to the state shown in FIGS.
[0026]
FIG. 7 shows another embodiment of a vertical blind attached to a window frame opened to the lower side. The length of the louver 14 and the operation portion 18a of the operation cord 18 in the height direction is adjusted according to the size of the window frame. Is getting longer. In this case, the cord weight 30 is positioned considerably below the grip portion 26c of the operating rod 26, but the grip portion 26c is positioned in the middle of the rod portion 26a so that the rod portion 26a has approximately the same length as the operating portion 18a. It is preferable to extend downward so that the cord weight 30 is engaged with the extended portion, and a stopper 26b is provided in the extended portion. Further, the grip portion 26c can be omitted, and the cross-sectional shape of the rod portion 26a can be polygonal so that the rotation operation is easy. In this case, the engagement ring 30a may be formed in a circular shape having a size substantially equal to the polygonal circumscribed circle of the rod portion 26a so that the rod portion 26a can relatively rotate inside the engagement ring 30a.
[0027]
【The invention's effect】
As described above, according to the present invention, since the operation code can be prevented from being loosened in the head rail, the appearance can be improved and the carrier can be moved smoothly.
[Brief description of the drawings]
FIG. 1 is a front view showing a vertical blind according to an embodiment of the present invention, showing a state in which a louver is expanded.
FIG. 2 is a perspective view of FIG.
FIG. 3 is a partially cutaway perspective view of the head rail of FIG. 1;
FIG. 4 is an exploded perspective view illustrating a relationship between a cord weight attached to an operation portion of the operation cord and an operation rod.
FIG. 5 is a front view of a cord weight and an operation rod.
FIG. 6 is an explanatory diagram showing the distribution of operation codes.
FIG. 7 is a front view showing another vertical blind according to the embodiment of the present invention.
[Explanation of symbols]
10 Head rail 12 Carrier 12A Master carrier (top carrier)
14 Louver 18 Operation code 18a Operation part 18b One end 18c Other end 24 Rotation shaft 25 Rotation transmission mechanism 26 Operation rod 30 Cord weight 30a Engagement ring (engagement part)

Claims (3)

A louver (14) is hung from each of a plurality of carriers (12) movably arranged in the head rail (10), and each carrier (12) is moved by moving a leading carrier (12A) to move a subsequent carrier. Is movable in the same direction,
One end (18b) of the operation cord (18) is connected to the leading carrier (12A) in the head rail (10), and the other end (18c) of the operation cord (18) is guided to one end of the head rail (10). After being hung down from the one end, it is turned and introduced into the head rail (10), further guided to the other end of the head rail (10), turned and connected to the leading carrier (12A). The portion of the operation cord (18) that is suspended from one end of the head rail (10) becomes an operation portion (18a), and the operation portion (18a) is operated, so that the leading carrier (12A) and the subsequent carrier are operated. Carrier (12) is movable along the head rail (10),
Further, a rotation shaft (24) is disposed in the head rail (10), and a rotation transmission mechanism (25) for transmitting the rotation of the rotation shaft (24) to the louver (14) is provided in each carrier (12). When the operation rod (26) hung from one end of the rail (10) is operated, rotation is transmitted to the rotation shaft (24), and the louver (14) can be further rotated via the rotation transmission mechanism (25). Vertical blinds,
A code weight (30) is attached to the operation part (18a), and a portion of the operation part (18a) where the operation code (18) is turned is inserted through the code weight (30), and the operation rod ( 26. A vertical blind characterized in that a stopper (26b) for restricting upward movement of the cord weight (30) is provided at 26). The vertical blind according to claim 1, wherein the cord weight (30) includes an engagement portion (30a) engageable with the operation rod (26). The vertical length according to claim 1 or 2, wherein the cord weight (30) engages with the operating rod (26) in a state where the operating rod (26) is rotatable relative to the cord weight (30). Type blinds.

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