JP2002070461A - Blind for roof light window - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a blind for a roof light window, capable of smoothly ascending/descending and being opened/closed without depending on the pitch of a roof, enabling a reduction in the number of components and the simplification of a structure and assembly. SOLUTION: The blind is constituted as follows: a runner 6 is engaged with a guide rail 5 in such a manner as to travel freely; a movable frame 7 is mounted across both side frames 2 in such a manner as to freely move up and down; the lower end of a ladder cord 4 is connected to the movable frame 7; a plurality of slats 3 are disposed between the movable frame 7 and a top frame 1; both ends of a guide cord 8 are installed in an extended manner so as to form an endless annular cord-like body 9, which is wound across upper and lower pulleys 10; and the rotational drive of the pulleys 10 permits the movable frame 7 to move up and down with the cord-like body 9.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a blind for a skylight, which is installed in a horizontally or gently inclined window such as a skylight and adjusts lighting.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 8, a blind for a skylight which is installed in a horizontal or gently inclined window such as a skylight to adjust a lighting, and has upper ends of side frames 2 at both ends of a top frame 1. And the two side frames 2
It is known that a plurality of upper and lower slats 3 are disposed therebetween, and a ladder cord 4 for connecting and supporting the plurality of slats 3 and adjusting the inclination thereof is extended from the top frame 1. In this case, a bottom frame 23 is erected and fixed between the lower ends of both side frames 2, and a lower end of a ladder cord is connected to the bottom frame 23, and the bottom frame 23 is connected to the bottom frame 23.
A plurality of upper and lower slats 3 are disposed between 23 and the top frame 1.

A top frame 1 and a bottom frame 23
A guide cord 8 is stretched between them, and the guide cord 8 is penetrated through a guide hole 17 of each slat 3 and holds them so as not to hang. The guide cords 8 are provided on both sides, and the ladder cord 4 is located at the center. The ladder cord 4 is wrapped around the two rotating shafts 21 built in the top frame 1 and the bottom frame 23, and by rotating the rotating shaft 21 forward and backward, the ladder cord 4 moves in conjunction with the vertical movement of the ladder cord 4. The inclination of each slat 3 is adjusted.

Therefore, in the skylight blind, by winding up and down the ladder cord 4 with the rotating shaft 21, each slat 3 is rotated while changing its inclination angle, and the lighting of the incident light is adjusted. . However, when trying to see the outside through the skylight, there is a problem that a plurality of slats 3 become obstacles and a good view cannot be obtained. In addition, when the blinds for the skylight are used with the skylight opened, there is a problem that each slat 3 flaps due to the wind.

[0005] By the way, a vertical window blind generally has a function of winding up a plurality of slats. This function is to lower the slats by utilizing the weight of each slat and movable frame. For this reason, as described above, it is difficult to employ a function of utilizing the same weight in a skylight blind installed in a horizontal or gently inclined window such as a skylight.

[0006]

Problems to be Solved by the Invention
As disclosed in Japanese Unexamined Patent Publication No. 95, a skylight blind that can be opened and closed regardless of gravity is also known. As shown in FIG. 9, the skylight blind has an upper end of a side frame 2 connected to both ends of a top frame 1 and a bottom frame 23 erected and fixed between the lower ends of the side frames 2. A plurality of upper and lower slats 3 are arranged between the two,
A ladder cord 4 for connecting and supporting the plurality of slats 3 and adjusting its inclination is extended from the top frame 1.

In the blind for a skylight, a movable frame 7 is erected between both side frames 2 so as to be movable up and down, and the lower end of the ladder cord 4 is connected to the movable frame 7. A plurality of upper and lower slats 3 are provided between the upper frame 1 and the top frame 1. in this case,
The ladder cords 4 are arranged at the center and both sides, and both guide cords 8 are arranged outside the ladder cords 4 on both sides. The guide cord 8 is penetrated by each slat 3 and the movable frame 7, and holds these so that they do not hang.

Further, pulleys 10 are disposed at both upper and lower ends of both side frames 2, and an endless belt-like cord 9 is wound between the upper and lower pulleys 10. Pulleys housed and installed in side frame 2
The motor 11 that rotates the drive 10 in conjunction with the bottom frame
Built in the middle of 23. Then, both ends of the movable frame 7 are connected and fixed to a part of the cords 9 on both sides, respectively. Therefore, when the pulley 10 is rotationally driven by the motor 11 to rotate and move the rope 9 up and down, the movable frame 7 is moved up and down together with the rope 9 and each slat 3 is also raised and lowered by the movable frame 7. It is opened and closed.

However, in this case, the movable frame 7
Are only fixedly connected to a part of the cord-like body 9 accommodated and installed in the both side frames 2, but are not reliably supported by the both side frames 2. Here, the movable frame 7 is guided and held by a guide cord 8 penetrated therethrough. In this case, frictional resistance is generated between the guide cord 8 and the movable frame 7 due to sliding contact.
It is not guided smoothly. Moreover, since the cords 9 are provided separately from the guide cords 8 penetrating the slats 3 and the movable frame 7, the number of components is large, the structure is complicated, and assembly is difficult.

SUMMARY OF THE INVENTION The present invention has been made in order to solve all the problems in the prior art described above, and an object of the present invention is to open and close a plurality of slats by moving up and down together with a movable frame without depending on a roof slope. At that time, both ends of the movable frame are guided and supported by both side frames to move up and down smoothly, and the guide cord is also used as a part of the cord-like body, reducing parts and simplifying structure and assembly. The purpose of the present invention is to provide a blind for a skylight.

[0011]

According to a first aspect of the present invention, there is provided a skylight blind, wherein upper ends of side frames are connected to both ends of a top frame, and a plurality of upper and lower slats are arranged between the side frames. A ladder cord for connecting and supporting the plurality of slats and adjusting the inclination thereof is extended from the same top frame. In this case, guide rails are provided on both side frames and are engaged with the guide rails so that they can run freely. Runners are provided at both ends of the movable frame, and the movable frame is erected between the side frames so as to be movable up and down. The lower end of the ladder cord is connected to the movable frame, and the movable frame and the top are connected. A plurality of upper and lower slats are disposed between the frame and the both ends of a guide cord that penetrates and holds each of the slats, and extends continuously to form an endless ring-shaped cable. Is wound between pulleys arranged above and below, and the pulley is driven to rotate so that the cable-like body is rotated along its ring shape. And the movable frame is moved up and down together with the cord-like body.

Therefore, in this case, the cable is rotated by driving the pulley to rotate, and the movable frame is moved up and down together with the cable, and the movable frame is moved up and down with the vertical movement of the movable frame. A plurality of slats arranged between the top frame and the top frame are moved up and down to open and close. At this time, runners provided at both ends of the movable frame are movably engaged with guide rails provided on both side frames, so that both ends of the movable frame are reliably guided and supported, and At the same time, each slat is raised and lowered smoothly. In addition, both ends of the guide cord that penetrates and holds each slat are extended and connected to form an endless ring-shaped cable, and the cable is wound between pulleys arranged vertically and the pulley is rotated. Since the cable is rotated by driving, the guide cord is also used as a part of the cable which is moved up and down together with the movable frame. Thus, the assembly can be simplified.

According to a second aspect of the present invention, there is provided a skylight blind according to the first aspect, wherein the cords are arranged in pairs along both side frames, and the vicinity of both ends of the movable frame is the same. It is characterized by being bonded and fixed to a part of both cords.

Therefore, in this case, particularly, the movable frame is vertically moved by the ropes arranged in pairs along the both side frames, so that the movable frame is surely moved near both ends thereof. Up and down operation is stable.

According to a third aspect of the present invention, there is provided a skylight blind according to the second aspect, further comprising a motor for rotating the corresponding pulleys between the two cord-like bodies in association with each other. It is characterized by the following.

Therefore, in this case, in particular, the pulleys on both sides of the pulley are rotationally driven by the motor in conjunction with each other, and both the cords are synchronously rotated by the two pulleys driven by the rotation. The slats are moved up and down more smoothly together with the movable frame by being vertically moved on both sides.

According to a fourth aspect of the present invention, there is provided a skylight blind according to any one of the first to third aspects, wherein a small-diameter wire is spirally wound around a large-diameter wire serving as a core material. The pulley is wound around and fixed to form a cord, and the rotation of the pulley is transmitted to the cord by engagement of the small diameter wire with the uneven outer peripheral surface of the pulley. It is assumed that.

Therefore, in this case, in particular, the thin wire is spirally wound around the outer periphery of the large diameter wire serving as the core material and fixed, whereby the cord is easily formed. The engagement of the pulley with the uneven outer peripheral surface ensures that the rotation of the pulley is transmitted to the rope.
That is, the cord is bendable, and the portion of the small-diameter wire on the outer periphery is caught and acts like a chain, and the rotation of the pulley is reliably transmitted to the cord. In addition, since the same small-diameter wire is spirally wound, the cord-like body serving as a guide cord that penetrates and holds each slat is smoothly slid through the slat.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIGS.
4 shows an embodiment corresponding to all four, and the skylight blind of this embodiment is installed on a horizontally or gently inclined window such as a skylight as shown in FIG. The upper end of the side frame 2 is connected to both ends of the slat 1, and a plurality of upper and lower slats 3 are arranged between the two side frames 2, and a ladder cord 4 for connecting and supporting the plurality of slats 3 and adjusting the inclination thereof is used. It extends from the top frame 1.

In this case, guide rails 5 are provided on both side frames 2, and runners 6 movably engaged with the guide rails 5 are provided at both ends of the movable frame 7, and the movable frames 7 are attached to the both side frames. The lower end of the ladder cord 4 is connected to the movable frame 7 so as to be movable up and down between the frames 2.
And a plurality of upper and lower slats 3 are disposed between them.

Ends of a guide cord 8 that penetrates and holds each slat 3 are extended to form an endless ring-shaped cable body 9, and a pulley 10 having the cable bodies 9 arranged vertically is provided. The pulley 10 is wound around and the pulley 10 is driven to rotate so that the cable-like body 9 is rotated along its ring shape, and the movable frame 7 is connected and fixed to a part of the cable-like body 9. Thus, the movable frame 7 is moved up and down together with the cord-like body 9.

Further, in this case, the cords 9 are arranged in pairs along the two side frames 2 and the vicinity of both ends of the movable frame 7 are connected and fixed to a part of the cords 9 respectively. There is also provided a motor 11 for rotating the corresponding two pulleys 10 in association with each other between the two cords 9. As shown in FIG. 2, a small-diameter wire 13 is
Is spirally wound and fixed to form a cord-like body 9,
The engagement of the small-diameter wire 13 and the uneven outer peripheral surface 14 of the pulley 10 causes the rotation of the pulley 10 to be transmitted to the cable-like body 9.

As shown in FIG. 1, a motor 11 is provided at a middle upper side of the top frame 1, and a shaft 15 which rotates integrally with a rotation shaft of the motor 11 is provided on both sides of the motor 11. A bevel gear 16 is disposed at the tip of both shafts 15, and the rotation of the motor 11 is controlled by a pulley via the bevel gear 16.
It is transmitted to 10. Here, the rotation of the motor 11 may be transmitted to the pulley 10 via a worm gear instead of the bevel gear 16. Also, top frame 1
May be formed in a hollow shape, and the motor 11, the shaft 15, the bevel gear 16 and the like may be housed and installed in the hollow inside of the top frame 1.

As shown in FIG. 3, a pair of pulleys 10 are arranged one above the other, and the pulley 10 on the upper side is rotated by the motor 11. Then, the endless ring-shaped cable-like body 9 is wound around the four pulleys 10, and the same cable-like body 9 on both sides is rotated in the opposite direction along the ring shape.
In this case, both the cords 9 are rotated synchronously by one motor 11. Further, by forming both side frames 2 in a hollow shape, it is also possible to house and install the cord-like bodies 9 and pulleys 10 on both sides inside the hollow of the side frames 2.

Guide holes are provided near both ends of each slat 3.
A guide cord 8 is penetrated through the guide hole 17 to hold the slats 3 so as not to hang down. Here, the guide cords 8 are arranged on both sides, and the two ladder cords 4 are arranged inside and close to each other. The endless ring-shaped cable-like body 9 is formed by extending and continuing both upper and lower ends of the guide cord 8. As shown in FIG. 2, the cord 9 is formed by winding a small-diameter wire 13 around a large-diameter wire 12 in a spiral shape and fixing the same, and the small-diameter wire 13 is formed on the outer surface of the pulley 10 in the form of an uneven gear. 14 is engaged and engaged.

The movable frame 7 is attached to a part of the cord 9.
The movable frame 7 is moved up and down together with the cord-like body 9. In this case, as shown in FIG. 4, stoppers 19 are attached and fixed near both ends of the movable frame 7 with screws 18, and the cords 9 are inserted through the stoppers 19 and fixedly connected by caulking. Therefore, the movable frame 7 moves up and down in parallel with the rotatable body 9 which is rotated and moved up and down. At this time, each slat 3 through which the guide cord 8 is slidably penetrated is moved by the movable frame 7. It can be raised and lowered and opened and closed.

As shown in FIG. 5, both side frames 2 are joined and integrated by a fixed frame 20 on the lower side, and a groove-shaped guide rail 5 is integrally formed on the upper surface of the side frame 2. A runner 6 which is engaged with the guide rail 5 so as to be able to run freely is a wheel, which rolls in the groove along the guide rail 5 and protrudes from both sides of the movable frame 7. Therefore, the movable frame 7 is guided by the guide rails 5 on both sides, and is smoothly translated without tilting.

As shown in FIG. 6, the ladder cord 4 is wound around the rotating shafts 21 built in the top frame 1 and the movable frame 7, and is rotated by rotating the rotating shaft 21 forward and backward. The inclination of each slat 3 is adjusted in conjunction with the vertical movement of the ladder cord 4. in this case,
The rotation shaft 21 is a tilt rotation shaft, and is driven by a pulse motor (not shown) or the like to rotate forward and backward. Further, one ladder cord 4 is sequentially wound around the outer periphery of the plurality of slats 3 to connect the slats 3, and each slat 3 is rotated about its central shaft portion 22 to have an inclination angle. Changes are adjusted.

Therefore, in the skylight blind of this embodiment, the pulley 10 is rotationally driven to rotate the cord 9 and the movable frame 7 together with the cord 9.
Is moved up and down, and a plurality of slats 3 disposed between the movable frame 7 and the top frame 1 are moved up and down with the up and down operation of the movable frame 7 to be opened and closed. At that time, guide rails 5 provided on both side frames 2 are provided.
The runners 6 disposed at both ends of the movable frame 7 are engaged so as to be able to run freely, so that both ends of the movable frame 7 are reliably guided and supported, and each slat 3 is smoothly moved together with the movable frame 7. It is raised and lowered.

Further, both ends of the guide cord 8 for penetrating and holding each slat 3 are extended and formed continuously to form an endless annular cable-like body 9, and the cable-like body 9 is interposed between pulleys 10 arranged vertically. Since the rope 9 is turned by being wound around and rotating the pulley 10, the guide cord is used as a part of the rope 9 which is moved up and down together with the movable frame 7. 8 is also used, so that the number of parts can be reduced and the structure and assembly can be simplified.

In the skylight blind of this embodiment, the movable frame 7 is moved up and down by the ropes 9 arranged in pairs along the side frames 2.
The movable frame 7 is securely connected to both the cords 9 near both ends thereof.
Up and down operation is stable. Moreover, in this case, the pulleys 10 on both sides of the pulley 10 are rotationally driven in conjunction with each other by the motor 11, and the two cords 9 are rotated and moved up and down by the two pulleys 10 driven by the rotation.
Are moved up and down on both sides in a well-balanced manner, so that each slat 3 together with the movable frame 7 is raised and lowered more smoothly.

Further, in the skylight blind of this embodiment, the wire 9 is easily formed by spirally winding and fixing the small diameter wire 13 around the large diameter wire 12 serving as the core material. I have. The meshing engagement between the small-diameter wire 13 of the rope 9 and the uneven gear-shaped outer peripheral surface 14 of the pulley 10 causes the rotation of the pulley 10 to rotate.
Is reliably transmitted.

That is, the rope 9 can be bent and deformed, and the portion of the small-diameter wire 13 on the outer periphery thereof is caught, thereby performing the same operation as a chain, and the rotation of the pulley 10 ensures the rope 9 to rotate. It is transmitted. Moreover, since the small-diameter wire 13 is spirally wound, the cable-like body 9 that passes through the guide hole 17 and serves as the guide cord 8 that holds each slat 3 can be guided by the slat 3 with the same guide. The hole 17 smoothly slides through.

FIG. 7 shows another embodiment corresponding to all of the first to fourth aspects of the present invention. In the blind for a skylight of this embodiment, the side frame 2 has a substantially L-shaped piece opposed to both side pairs. The space between the two substantially L-shaped pieces is a guide rail 5. The runner 6 is formed of a member having a substantially H-shaped cross section, and the runner 6 is attached and fixed to the lower surface near both ends of the movable frame 7. In this case, the runner 6 slides reliably in the internal space along the guide rail 5 without coming off as a slider. Except for this, the configuration is the same as that of each of the above embodiments, and the same operation and effect as those of each of the above embodiments are exerted.

[0035]

As described above, in the skylight blind according to the first aspect of the present invention, a plurality of slats are moved up and down as the movable frame moves up and down. The guide cords which are supported by the guides and ascend and descend smoothly, and furthermore, the guide cords which penetrate and hold the respective slats are also used as a part of the cord-like body, thereby reducing the number of parts and simplifying the structure and assembly.

In the skylight blind according to the second aspect of the present invention, in particular, the cord-like bodies are arranged in pairs along both side frames, and the movable frame is securely connected to both ends near both ends thereof. It is stably moved up and down together with the body.

Further, in the skylight blind according to the third aspect of the present invention, particularly, both the cords are synchronously rotated by the motors via both pulleys, and the movable frame is vertically moved on both sides thereof in a well-balanced manner. Thus, each slat is raised and lowered more smoothly together with the movable frame.

Further, in the skylight blind according to the fourth aspect of the present invention, in particular, the rotation of the pulley is reliably transmitted to the cord-like body similar to the chain, and furthermore, serves as a guide cord for penetrating and holding each slat. The cable-like body smoothly slides through each slat.

[Brief description of the drawings]

FIG. 1 is a plan view showing a skylight blind according to an embodiment of the present invention.

FIG. 2 is a plan view showing an engaged state of a cord and a pulley in the window blind.

FIG. 3 is a schematic perspective view showing a mutual arrangement relationship of slats, cords, and pulleys in the skylight blind.

FIG. 4 is a cross-sectional view showing a fixed state of the movable frame and the cord-like body in the skylight blind.

FIG. 5 is a front view of the movable frame in the skylight blind as viewed from below.

FIG. 6 is a schematic side view showing an operation state of a slat in the skylight blind.

FIG. 7 is a front view of a main part of a movable frame in a skylight blind according to another embodiment, as viewed from below.

FIG. 8 is a perspective view showing a conventional window blind.

FIG. 9 is a perspective view showing another conventional example of a window blind.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Top frame 2 Side frame 3 Slat 4 Ladder cord 5 Guide rail 6 Runner 7 Movable frame 8 Guide cord 9 Corded body 10 Pulley 11 Motor 12 Large diameter wire 13 Small diameter wire 14 Outer surface

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Toshihiro Tanaka 1048 Kazuma Kadoma, Osaka Prefecture Matsushita Electric Works, Ltd. Terms (reference) 2E043 AA01 AA04 AB01 BB14 BB15 BC05 BD01 CA02 DA02 DA03 DA06

Claims (4)

[Claims] An upper end of a side frame is connected to both ends of a top frame, a plurality of upper and lower slats are disposed between the side frames, and a ladder cord for connecting and supporting the plurality of slats and adjusting the inclination thereof is provided. A blind for a skylight extending from the top frame, wherein guide rails are provided on both side frames, and runners which run freely with the guide rails are arranged at both ends of the movable frame. Is installed between the two side frames so as to be movable up and down, the lower end of the ladder cord is connected to the movable frame, and a plurality of upper and lower slats are arranged between the movable frame and the top frame. Ends of a guide cord that penetrates and holds each slat are extended and connected to form an endless ring-shaped cable, and the cable is wrapped between pulleys arranged vertically, and The rope is driven to rotate, so that the rope is rotated along its loop, and the movable frame is fixedly connected to a part of the rope, and the movable frame is attached to the rope. Skylight blinds that can be moved up and down together. 2. A cable according to claim 1, wherein the cords are arranged in pairs along both side frames, and the vicinity of both ends of the movable frame are respectively connected and fixed to a part of the cords. Skylight blinds. 3. The skylight blind according to claim 2, further comprising a motor that rotates the corresponding pulleys between the two cord-like bodies in association with each other. 4. A wire is formed by spirally winding a small diameter wire around the outer periphery of a large diameter wire serving as a core material and forming a cord-like body, and by engaging the same small diameter wire with the uneven outer peripheral surface of a pulley. The skylight blind according to any one of claims 1 to 3, wherein the rotation of the pulley is transmitted to the cord-like body.