JPH053672Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a light control device that is installed on an inclined lighting surface such as a roof surface, and more specifically, the present invention relates to a light control device that is installed on an inclined lighting surface such as a roof surface. Accordingly, the present invention relates to a technique for appropriately changing the amount of daylight.

[Prior art]

Conventionally, as a blind-type light control device having a large number of blind slats, there has been a horizontal blind used for an inclined window frame or a horizontal window frame, as shown in Japanese Utility Model Application Publication No. 57-181894, for example. Are known. This horizontal blind prevents the blind slats from sagging by disposing a take-up reel that constantly pulls the weight plate of the blind between the weight plate and the window frame for attaching the blind.

[The problem that the idea aims to solve]

Such a light control device changes the amount of lighting by rotating the blind slats up and down by pulling and returning the operating cord. Therefore, in order to obtain good lighting, it is necessary to operate the operating cord. There was a problem that was bothersome.

This invention was made to solve the above-mentioned conventional problems, and it does not require much effort to change the amount of sunlight.
It is an object of the present invention to provide a light control device that can be attached to a lighting surface and can easily provide good lighting.

[Means to solve the problem]

In order to solve the above problems, the present invention provides a frame body 1
An elevating body 3 is provided between the opposing side frames 2 so that it can be raised and lowered freely, and a winding storage section 4 is provided at the upper end of the frame 1, and a winding roll 10 is wound up and unwound in the winding storage section 4 so as to be rotatable. The upper and lower strings 17 and 18 are stretched across the winding roll 10 and the elevating body 3, and the lower string 1
7, the upper string 18 is configured to be able to change its position in the length direction, and a large number of blind slats 5 are arranged between the upper and lower strings 17 and 18 at intervals in the length direction, and the lower string 17 This is a light control device configured to freely change the swinging angle of the blind slat 5 based on the change in the position of the upper string 18, and the elevating body 3 has a swinging angle approximately equal to the width of the blind slat 5. The arm 2 is provided with a spring bias so as to rotate in a direction away from the winding roll 10, and the end of the upper string 18 is hooked to the tip of the swinging arm 22, and the end of the upper string 18 is attached to the tip of the swinging arm 22. Rod-shaped ears 2 at the ends in the length direction
3 and blind slat 5 at a specific position.
The blind slats 5 are raised and rotated by locking the ears 23 of the blind slats 5, and the swing arm 22 is raised and rotated via the upper string 18 against the biasing force thereof to open the blind slats 5 group. An arm 24 for changing the slat angle is configured to be freely driven by an angle changing motor 25.

[Effect]

According to this device, the end of the upper string on the lifting body side is attached to a swing arm that is spring-biased so as to rotate in a direction away from the winding roll, and the ear of one blind slat in a specific position is pulled by the slat angle changing arm to rotate it upright, so that by raising the slat angle changing arm, the position of the upper string is changed relative to the lower string, and all the blind slats are rotated upright against the spring force of the swing arm, and the raised heights of all the blind slats can be made approximately equal. This makes it possible to make the opening intervals between the blind slats for admitting light approximately equal, and it is easy to adjust the amount of light admitted without the trouble of changing the angle of the blind slats compared to the conventional method of changing the amount of light admitted using an operating cord.

〔Example〕

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 2 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, a motor 12 is disposed, 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 10 for the blind main body 6, which will be described later.
It is constructed so that it can be rolled up, stored and unrolled. The swinging angle of a large number of groups of blind slats 5 can be changed freely between the elevating body 3 and the winding storage section 4, and the blind main body in which winding into the winding storage section 4 is performed as the elevating body 3 rises. 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 winding 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 5 is secured near both longitudinal ends thereof by slat holding strings 19. Specifically, the blind slat 5 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 string 17 by a spiral spring 20 as an elastic biasing means 8, and the lower string 17 is always kept under tension.
Further, the upper string 18 can be freely changed in its position relative to the lower string 17 in its length direction, and this upper string 18 has a swinging arm that is rotatably biased toward the lower frame 7 side by a coil spring 21. It is attached at 22. The swing arm 22 has a length substantially equal to the width of the blind slat 5, and is provided on the elevating body 3 in a spring-biased state so as to rotate in a direction away from the take-up roll 10. ing.

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, 1
8 are close to each other, and a large number of blind slats 5 are in a closed state between the upper and lower strings 17 and 18 that 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 blocking sunlight from entering the entire area. Then, by rotating the motor 12 toward the winding side, the blind slat 5 is laid between the upper and lower strings 17 and 18, and the upper and lower strings 17 and 1 are in the closed state.
8 and 5 groups of blind slats on winding roll 1.
0, roll up and store the blind body 6,
It is designed to allow full daylighting. 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 slats 5 are
Rod-shaped ears 23 are formed at both ends. An arm 2 for changing the slat angle is located near the winding storage section 4.
4 are rotatably provided on the left and right side frames 2. This arm 24 is connected to the blind slat 5 at a specific position.
The blind slats 5 are raised and rotated by locking the ears 23 of the blind slats 5, and the swing arm 22 is raised and rotated via the upper string 18 against the biasing force thereof, thereby moving the blind slats 5. The angle of the arm 24 can be changed using an angle changing motor 25.

Therefore, depending on the opening direction of the motor 25, the fourth
As shown by the imaginary line in the figure, when both ears 23 of the blind slat 5 in this position are pulled and lifted by the arm 24 for changing the slat angle, the upper string 18
changes its position with respect to the lower string 17, and all the blind slats 5, 5, . . . stand up and rotate. Here, since the end of the upper string 18 is attached to a swinging arm 22 which is spring-biased so as to rotate in a direction away from the winding roll 10, the slat angle changing arm By raising the blind slats 24, the heights of all the blind slats 5, 5, . In this way, since the opening angles of the blind slats 5, 5, . . . can be automatically adjusted using the motor 25, good lighting can be easily achieved.

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, the integral slat holding string 1
Although the blind slats 5 are held in step 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.

[Effect of idea]

As described above, the present invention involves hooking the end of the upper string to the swinging arm, and hooking the ear of one blind slat at a specific position to the arm for changing the slat angle to rotate the blind slat upright. Since the slat angle changing arm is raised, the position of the upper string relative to the lower string is changed, and all the blind slats are rotated to stand up, thereby adjusting the standing height of all the blind slats. can be made approximately equal, and the opening intervals for lighting between each blind slat can be made approximately equal. As a result, compared to the case where a conventional operation cord is used, changing the angle of the blind slats does not require much effort, and it is possible to easily obtain good lighting.

[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 view of the blind slat of the above in the closed state. FIG. 4 is an explanatory view showing the opening and closing action of the blind slats as above, FIG. 5 is a plan view of the arm portion of the above, and FIG. 6 is a perspective view showing the ears of the blind slats as above. . 1...Frame body, 2...Side frame, 3...Elevating body, 4...
... Winding storage section, 5... Blind slat, 6...
... Blind body, 7 ... Lower frame, 8 ... Elastic biasing means, 10 ... Winding roll, 17 ... Lower string, 18
... Upper string, 22 ... Swinging arm, 23 ... Ear, 2
4...Arm for changing the slat angle, 25...Motor for changing the angle.

Claims (1)

[Scope of utility model registration request] An elevating body is provided between opposing side frames of the frame body so that it can be raised and lowered, and a winding storage section is provided at the upper end of the frame body,
A winding roll is provided in this winding storage section so that it can be freely rotated for winding and unwinding, and upper and lower strings are stretched across the winding roll and the elevating body, and the position of the upper string relative to the lower string can be changed in the length direction. A large number of blind slats are arranged at intervals in the length direction between the upper and lower strings, and the swing angle of the blind slats can be changed based on the change in the position of the upper string with respect to the lower string. In this light control device, a swinging arm having a length substantially equal to the width of the blind slat is provided on the elevating body and is biased by a spring so as to rotate in a direction away from the winding roll, The end of the upper string is attached to the tip of the swinging arm, and the rod-shaped ears protrude from the longitudinal ends of the blind slats, and the ears of the blind slats at specific positions are locked to secure the blinds. The arm for changing the angle of the slats can be freely driven by the angle changing motor, which raises and rotates the rat and also raises and rotates the swinging arm via the upper string against the urging force to open a group of blind slats. A light control device that can be attached to a lighting surface.