JPH0421435Y2 - - Google Patents

Description

[Detailed description of the invention] [Technical field] The present invention relates to a light control device that is attached to an inclined lighting surface such as a roof surface, and more specifically, a light control device that has a large number of slats such as blind slats. This technology relates to a technology that allows construction even if the lighting surface is inclined.

[Background Art] Conventionally, in a blind-type light control device having a large number of blind slats, as shown in FIGS. . A winding string 31 is inserted into the hole 30, and a weight 32 is attached to the lower end of this winding string 31.
By mooring the blind slat 5, winding up and unwinding the entire blind slat, and changing the relative position of the front and back strings 17' and 18', the amount of daylight can be changed by changing the inclination angle of the blind slat 5. It was hot. By the way, in such a blind type,
Since this device uses a weight 32, it cannot be installed on a roof surface where the lighting surface is sloped.

[Purpose of the invention] The present invention was created in view of these problems, and its purpose is to create a lighting surface that can be constructed whether the lighting surface is inclined or horizontal. The object of the present invention is to provide a light control device that can be attached.

[Disclosure of the invention] The light control device attached to the lighting surface of the invention is
The lower string 17 is tensioned between the opposing frames 2 of the frame body 1, and a swinging arm 22 is provided on one frame 2 so as to be rotatable in the string length direction, and the swinging arm 22 is attached to the other frame. 2, one end of the upper string 18 that is substantially opposed to the lower string 17 is engaged with the tip of the swinging arm 22, and the other end of the upper string 18 is engaged with the other frame 2. A large number of slats 5 are placed between the upper and lower strings 18 and 17 at intervals in the length direction, and the upper string 18 is moved against the rotation biasing force of the swinging arm 22 to form the lower string. The swing angle of the slat 5 can be changed by changing the position of the upper string 18 with respect to the slat 17, and by configuring it in this way, the above object can be achieved. I've reached it. That is, by moving the upper string 18 against the tensioned lower string 17 against the rotation biasing force of the swing arm 22, the swing angle of the slat 5 arranged between the upper and lower strings 18 and 17 can be adjusted. The 5 groups of slats that can be changed to make the amount of daylight variable are the lower string 17 held in tension and the upper string 1 whose position is changed relative to the lower string 17.
By supporting the light control device between 8 and 8, the light control device can be easily installed even on a sloped surface, such as a roof surface, regardless of gravity.

Embodiments of the present invention will be described in detail below based on the drawings.

The frame body 1 is formed in a substantially square shape along the outer periphery of the lighting surface, and guide grooves 9 are formed in opposing side frames 26 thereof. The elevating body 3 is slidably installed between the guide grooves 9, 9. A winding storage section 4 is formed at the upper end of the frame 1. This winding storage section 4 has its support base 1
1 rotatably supports a winding roll 10 and a motor 12 is disposed thereon, and a transmission belt 16 is wound around a pulley 14 fixed to an output shaft 13 of the motor 12 and a pulley of a shaft 15 of the winding roll 10. There is a winding roll 1 for the blind body 6, which will be described later.
It is configured so that it can be wound up, stored and unwound. The swinging angle of the group of blind slats 5a as a large number of slats 5 can be changed freely between the elevating body 3 and the winding storage section 4, and the winding in the winding storage section 4 as the elevating body 3 rises is controlled. A blind body 6 is provided.

The blind main body 6 is constructed as shown in FIGS. 1, 3, and 4. That is, a lower string 17 and an upper string 18 are engaged between the elevating body 3 and the take-up roll 10, and slat holding strings 19 are provided on these upper and lower strings 17 and 18 at a constant interval.
The blind slat 5a is secured near both longitudinal ends of the blind slat 5a by slat holding strings 19. Specifically, the blind slat 5a is attached to the center of the slat holding string 19. The elevating body 3 to which the lower string 17 is attached is attached to the lower frame 7 by a spiral spring 20 as an elastic biasing means 8, and the lower string 17 is always kept under tension.
In addition, the upper string 18 is connected to the lower frame 7 by a coil spring 21.
It is attached to the tip of the swing arm 22 which is biased to rotate in the side. However, as shown by the solid line in FIGS. 3 and 4, the swinging arm 22 is biased to swing by the coil spring 21, so that the upper and lower strings 17 and 18 are close to each other. A large number of blind slats 5a are arranged in a closed state between the upper and lower strings 17 and 18 which are in close proximity to each other. That is, as the motor 12 rotates toward the extending side, the elevating body 3 is pulled by the spiral spring 20 and descends, thereby closing the blind main body 6 and completely blocking sunlight. Then, as the motor 12 rotates toward the winding side, the upper and lower strings 1
In the closed state with the blind slats 5a resting between 7 and 18, the upper and lower strings 17 and 18 and the group of blind slats 5a are wound onto the winding roll 10, and the blind main body 6 is wound and stored, and the entire area is illuminated. It is possible to do this. In this case, the elevating body 3 has risen to the upper end position against the spiral spring 20.

As shown in FIG. 6, the blind slat 5a has rod-shaped ears 23 formed at both ends thereof. Near the winding storage section 4, an arm 24 for changing the slat angle is rotatably provided on the left and right side frames 26. The angle of this arm 24 can be changed by an angle changing motor 25.
However, due to the rotation of the motor 25 in the opening direction,
As shown by the imaginary lines in FIG. 4, lift both ears 3 of the blind slat 5 at this position, pull up the upper string 18 via the swing arm 22 against the coil spring 21, and raise the blind slat 5a. The blind slats 5a are made to stand upright, and light is let in through the gaps between the blind slats 5a, and the amount of light let in can be changed by changing the angle of the blind slats 5a.

Therefore, the extending and storing of the blind main body 6 is performed by the elevating body 3 which is biased toward the lower frame 7 side.
The blind-type light control device can be installed even if the lighting surface is sloped like a roof or a skylight. It can also be applied to vertical walls.

In addition, in the embodiment, one slat holding string 1
Although the blind slats 5 are held in 9, strings may be provided on the front and back sides of the blind slats 5 to hold them, or the blind slats 5 may be directly attached to the upper and lower strings 17 and 18. It's good.
Furthermore, although the elastic biasing means 8 is a coil spring 21, it may also be a rubber string. Furthermore, the blind main body 6 may be manually rolled up and stored. Further, the arm 24 may also be operated manually.

In the above embodiment, the blind main body 6 was configured to be freely wound up and unrolled between the elevating body 3 as the frame 2 and the winding roll 10, but as in another embodiment shown in FIG. Alternatively, the blind main body 6 may be disposed between the fixed frames 2, and only the blind slats 5a may be opened and closed.

[Effects of the invention] In summary, the present invention moves the upper string against the tensioned lower string against the rotation biasing force of the swinging arm 2, thereby swinging the slat placed between the upper and lower strings. The amount of light let in can be made variable by changing the angle of movement, and the slats that make the amount of light let in variable in this way are supported between the lower string held in tension and the upper string whose position is changed relative to the lower string. This has the advantage that the light control device can be easily installed even in a sloped place, for example, an attic, regardless of gravity.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway perspective view of an embodiment of the present invention, Fig. 2 is an enlarged perspective view showing the elastic biasing means of the above, and Fig. 3 is a partially enlarged perspective view of the slat of the same in the closed state. , Fig. 4 is an explanatory view showing the opening and closing action of the slats as above, Fig. 5 is a plan view of the arm portion of the above, Fig. 6 is a perspective view showing the ears of the slats as above, and Fig. 7 is the same as above. 8 is a perspective view of the conventional example, and FIG. 9 is a sectional view of the same as above, 2 is a frame, 5 is a slat, 17 is a lower string, 18
is an upper string, and 22 is a swing arm.

Claims (1)

[Scope of utility model registration request] The lower string is tensioned across opposing frames of the frame body, a swinging arm is provided on one frame so as to be rotatable in the lengthwise direction of the string, and the swinging arm is rotated in the opposite direction from the other frame. One end of the upper string, which is substantially opposite to the lower string, is attached to the tip of the swinging arm, and the other end of the upper string is attached to the other frame, and the upper and lower strings are connected in the longitudinal direction between the upper and lower strings. A large number of slats are arranged at intervals,
A lighting surface characterized in that the swinging angle of the slat can be changed by moving the upper string against the rotation biasing force of the swinging arm and changing the position of the upper string with respect to the lower string. A dimmer that can be installed.