JPH06193365A - Device for driving blind for skylight - Google Patents

Abstract

PURPOSE:To easily assemble a driving device which moves a leading runner along a guide rail. CONSTITUTION:A large number of supporting frames 14 supporting pleat-shaped shades 13 are movably supported along a guide rail 11 through runners 12, 12a and a chain 27 having a larger length than a maximum moving distance of a leading runner is movably supported on the guide rail 11. A sprocket 26 which is rotationally driven by a drive means is rotatably supported on one end of the rail 11 and the chain 27 is hanged on the sprocket 26 and the leading runner 12a is attached to the forward end of the chain 27.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a skylight blind for adjusting the lighting from the skylight by pulling out or folding a shade formed in a fold shape with cloth or the like along the skylight.

[0002]

2. Description of the Related Art An example of a conventional skylight blind will be described with reference to FIG. 4, in which a shade 1 made of a piece of cloth such as cloth is supported by a suspension shaft 2 at regular intervals, and each suspension shaft 2 is supported.
Both ends of are supported by guide rails 4 via runners 3, respectively.

Pulleys 5a and 5b are rotatably supported near both ends of the guide rail 4, and the pulleys 5a and 5b are rotatably supported.
An endless wire 6 is hung between 5b. The leading runner 3a of the runner 3 is connected to the wire 6,
One pulley 5a is rotationally driven by a driving means such as a motor. In addition, each suspension shaft 2 is connected to the adjacent suspension shaft 2 by a pitch cord 7.

With such a structure, when the pulley 5a is rotationally driven in the shade drawing direction, the leading runner 3a is
Are pulled out, and the runners 3 that follow are pulled out sequentially at regular intervals, and the shade 1 is pulled out along the guide rails 4.

When the pulley 5a is rotationally driven in the shade folding direction, the leading runners 3a are pulled back, and the respective runners 3 are pushed back by the leading runners 3a one after another, so that the shade 1 is folded along the guide rails 4.

[0006]

However, in the above-mentioned blind for a skylight, the wire 6 is placed between the pulleys 5a and 5b.
It is necessary to hang it in a tense state. Therefore, at the time of assembling, it is necessary to optimally adjust the length of the wire 6 according to the distance between the pulleys 5a and 5b to tension the wire 6, and the work is complicated.

An object of the present invention is to provide a skylight window blind capable of easily assembling a drive device for moving a leading runner along a guide rail.

[0008]

In order to achieve the above-mentioned object, the present invention supports a large number of support frames that support a fold-shaped shade so as to be movable along a guide rail via a runner. A chain longer than the maximum travel distance of the leading runner is movably supported, and a sprocket rotatably driven by a drive means is rotatably supported at one end of the guide rail, and the chain is hooked on the sprocket. A leading runner is attached to the tip of the chain.

[0009]

When the sprocket is rotated by the above means, the chain is moved along the guide rails, the leading runner is moved along with the movement of the chain, and the support frames are sequentially moved accordingly.

[0010]

1 to 3 show an embodiment of a blind for a skylight embodying the present invention. That is, in the window blind, a large number of runners 12 are movably supported by a pair of guide rails 11, and a large number of support frames 1 for supporting a shade 13 described later are provided between the runners 12 of both guide rails 11.
4 are supported.

Each of the support frames 14 has a first support member 15 in the form of a rectangular cylinder, the ends of which are supported by the runner 12.
The first support member 15 is composed of a pair of second support members 17 that are fixed to both side surfaces of the first support member 15 with screws 16.

As shown in FIG. 3, the second supporting member 1
7, a supporting piece 18 is formed which can be brought into contact with the side surface of the first supporting member 15, and a hanging cylinder 19 having an opening 20 in a part of the cylinder is formed below the supporting piece 18. Has been formed. Then, in each of the support frames 14, the pair of suspension cylinders 19 of the second support member 17 are fixed to the first support member 15 so that the openings 20 thereof face each other.

As shown in FIG. 2, the second support member 1
The support piece 18 of No. 7 is formed to have the same length as the first support member 15 arranged between the guide rails 11, and the suspension cylinder 19 of the second support member 17 is formed to be longer than the support piece 18. And is extended to a position below the guide rail 11.

As shown in FIG. 1, a shade 13 is suspended and supported between adjacent suspension cylinders 19 of adjacent support frames 14. That is, as shown in FIG. 3, in the shade 13, both ends of a cloth or the like are folded back to form a bag portion 21, and the bag portion 21 is inserted into the suspending tube 19 and is then inserted into the bag portion 21. A round bar-shaped shade retainer 22 is inserted.

The diameter of the shade presser 22 is formed to be larger than the opening width of the opening 20 of the hanging cylinder 19 to prevent the shade from coming off the opening 20, so that the shades 13 are adjacent to each other in the support frame 14. It is hung and supported in a fold shape between the adjoining hanging cylinders 19. The shade 13 is suspended and supported over the entire length of the suspension cylinder 19 so as to hide the guide rail 11 from the view from below.

Further, in the support frame 14 supported by the leading runner 12a, the shade 13 is suspended and supported from the suspension cylinder 19 in the front in the runner pull-out direction, and the suspension cylinder 19 that does not suspend and support the shade 13 is the same. It is configured to be covered by the shade 13.

The support frames 14 are connected by pitch cords 23, and the pitch cords 23 set the maximum spacing between the support frames 14 so that the shades 13 between the support frames 14 are maintained in a fold shape. .

A drive shaft 25 rotatably driven by a motor 24 is rotatably supported on one side between the guide rails 11, and both ends of the drive shaft 25, that is, the drive shaft 25 in each guide rail 11 are supported by the drive shaft 25. The sprocket 26 is fixed.

A chain 27 is attached to each sprocket 26.
And a chain 27 of the chain guide 28 is integrally formed on the upper and lower parts of the guide rail 11.
It is movably supported along a and 28b. And
The leading runner 12a is attached to the end of the chain 27 supported by the lower chain guide 28a via a mounting member 29.

Accordingly, the sprocket 26 is rotated and the chain 2 supported by the lower chain guide 28a is rotated.
When 7 is moved, the leading runner 12a is moved along with the movement of the chain 27.

Now, in the skylight blind constructed as described above, the motor 24 is actuated to operate the sprocket 26.
When the chain 27 supported by the lower chain guide 28a is moved in the direction of arrow A in FIG. 1, the leading runner 12a is moved as the chain 27 moves.

Then, the support frame 14 supported by the leading runner 12a is moved along the guide rails 11, and the subsequent support frames 14 connected via the pitch cords 23 are sequentially pulled out at regular intervals. As a result, the shade 20 that is suspended and supported in a fold shape between the support frames 14 is pulled out between the guide rails 11.

On the other hand, when the chain 27 supported by the lower chain guide 28a is moved in the direction of arrow B in FIG.
Leading runner 12a as the chain 27 moves
Will be moved.

Then, the support frame 14 supported by the leading runner 12a is moved along the guide rail 11, and the subsequent support frame 14 is sequentially pushed back by the support frame 14. As a result, the shade 13 is folded in the same direction.

As described above, in this window blind,
It is possible to pull out and fold the shade 13 by pushing out or pulling back the chain 27 hooked on the sprocket 26 along the lower chain guide 28a of the guide rail 11 and moving the leading runner 12a. Therefore, as a drive mechanism, a chain 27 longer than the maximum movement distance of the shade 13 may be mounted on the sprocket 26, and the leading runner 12a may be connected to the end of the chain. It can be constructed very easily as compared with a configuration in which the leading runner is connected to the wire in a stretched state.

Further, one shade 13 is hung and supported between the adjacent support frames 14, and each shade 13 is configured to form one fold, and supports the end portion of each shade 13. The second support member 17 is attached to the first support member 15 with screws 16.

Therefore, when some shades 13 are damaged or soiled, the second support member 17 supporting the shades 13 is removed from the first support member 15 and the shade retainer 22 is pulled out. Same shade 13
After the replacement, the second support member 17 may be attached to the first support member 15 again.

Therefore, when a part of the shade 13 is damaged or soiled, its replacement work can be performed very easily.

[0029]

As described above in detail, the present invention exhibits an excellent effect that it is possible to provide a skylight blind capable of easily assembling a drive device for moving a leading runner along a guide rail.

[Brief description of drawings]

FIG. 1 is a front cross-sectional view showing a skylight blind of one embodiment.

FIG. 2 is a cross-sectional view showing a skylight blind of one embodiment.

FIG. 3 is an exploded perspective view of a mounting frame and a shade.

FIG. 4 is a side view showing a conventional example.

[Explanation of symbols]

 11 Guide Rail 12 Runner 12a Leading Runner 13 Shade 14 Support Frame 26 Sprocket 27 Chain

Claims (1)

[Claims] 1. A plurality of support frames (14) supporting a fold-shaped shade (13) are movably supported along a guide rail (11) via runners (12, 12a), and the guide rail ( A chain (27) longer than the maximum travel distance of the leading runner is movably supported on 11), and a sprocket (26) rotatably driven by a driving means is rotatably supported on one end of the guide rail (11). A drive device for a window blind, characterized in that the chain (27) is mounted on the sprocket (26), and a leading runner (12a) is attached to the tip of the chain (27).