JPH0417757Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a horizontal blind, and particularly to a model blind that can be attached to a horizontal window such as a skylight or a window having a curved portion such as a sunroom window.

[Prior Art] Conventional horizontal blinds of this type include, for example, two frame bodies arranged in parallel, with light beam-reducing wings called slats pivoted at equal intervals.
There is a general structure in which gears are attached to the shafts at both ends of the slat, and the amount of light incident into the room can be adjusted by rotating the slat using a gear mechanism.

[Problems to be solved by the invention] However, the conventional horizontal blinds as described above cannot be opened or closed because the slats are fixed to the frame, and therefore all the light that enters from the window is not allowed to enter the room. Even if you wanted to, you couldn't do it, and there were other problems, such as the view outside the window being blocked by the slats and making you feel uncomfortable.

The present invention was developed based on the above-mentioned circumstances, and its purpose is to be able to be installed on horizontal windows such as skylights or windows with curved parts such as sunroom windows.
Another object of the present invention is to provide a horizontal blind whose slats can be opened and closed.

[Means for Solving the Problems] In order to solve the above-mentioned problems and achieve the object of the invention, the present invention is characterized by the following configuration.

That is, the guide frame is slidably installed on the guide frame via a plurality of guide frames provided in parallel, and a sliding body attached to the periphery of a notch groove formed in the side edge portion facing the guide frames. a ladder cord connecting these slats; a leading member to which the tip of the ladder cord is attached and slidably installed on the guide frame; This structure includes a constant force spring biased by a load, an opening operation means for moving the leading member in the slat opening direction, and a stopper for stopping the leading member at a predetermined position.

[Example] Hereinafter, an example of the present invention will be described based on the drawings.

Fig. 1 is a diagram showing the overall configuration of a horizontal blind according to the first embodiment, Fig. 2 is a diagram showing the entire configuration of the horizontal blind according to the second embodiment, and Fig. 3 is a diagram showing the installation configuration of the slats to the guide frame. FIG.

In the figure, reference numeral 1 indicates a guide frame, and a plurality of guide frames (two in this embodiment) are provided in parallel.
This guide frame 1 is made of aluminum alloy and is shown in Fig. 3a.
As shown in the figure, it has a hollow portion 1a, and an axial slat 1b is formed on the guide surface. The guide frame 1 of this embodiment has a curved portion 2 and is formed into a substantially L-shape so that it can be attached to a sunroom window or the like. These guide frames 1, 1 have their proximal ends connected to head boxes 3,
It is assembled by fixing the tips to the lower end frame 4, respectively,
It becomes an integrated frame. In addition, in the frame body integrated in this way, the head box 3 is attached to the upper end frame 5 which has been attached to the indoor wall in advance, and the head box 3 is attached to the lower end frame 4.
It is screwed to the interior wall and placed in the window frame.

Further, 6 in the figure is a slat made of aluminum alloy, and a large number of slats 6... are connected to the guide frames 1, 1.
They are constructed in parallel so that they can slide freely. This slat 6 is also called a blind louver, and is a so-called light beam shielding feather. The above-mentioned large number of slats 6... are connected by ladder cords 7, 7. That is, the ladder cords 7, 7 have a structure in which a large number of double weft threads 7b, 7b are spanned between two warp threads 7a, 7a at predetermined intervals in the form of a ladder. Heavy weft 7b, 7b
The connection is made with the slat 6 held between them.

In the figure, reference numeral 8 denotes a leading portion, which is shaped like a rectangular bar with a hollow inside, and is slidably installed on the guide frames 1, 1 while being placed at the head of the row of the slats 6. There is. Drums 9, 9 are provided in the hollow portion of the leading member 8, and the tips of the ladder cords 7, 7 are wound around these drums, respectively.

In the figure, 10 is a weight slat, which is formed as a heavy object made of aluminum. This weight slat 10 is slidably installed on the guide frames 1, 1 while being arranged at a predetermined position in the row of the slats 6. Both ends are directly fixed to 7a.
Such a weight slat 10 has a ladder cord 7,
7 is stretched along the guide frames 1, 1,
It is fixed to ladder cords 7, 7 at a position corresponding to the curved portion 2 of the guide frame 1.

Here, the structure for attaching the aforementioned slat 6 to the guide frame 1 will be explained based on FIG. 3. A rectangular cutout groove (not shown) is formed in each portion of the slat 6 facing the guide frames 1, 1. A sliding body 11 as shown in FIG.
is the guide frame 1, 1 via this sliding body 11, 11
It is constructed in The notched groove corresponding edge 11a of the sliding body 11 is set to be substantially on the same line as the central axis of the slat 6. The sliding body 11 is made of an elastic synthetic resin material with a small coefficient of friction, such as plastic, and is intended to smooth the sliding movement of the slat 6 and to reinforce the strength of the notched groove portion. As shown in the figure, the sliding body 11 has hooks 11b for engaging the slats formed at various places on the edge, and the edge 11a corresponding to the bottom edge of the notch groove of the slat 6 has hooks 11b as shown in the figure b. It is formed into a curved surface. Further, a round bar 11c is formed in the center of the edge 11a, and a detachment prevention piece 12 is attached to the bar 11c. This detachment prevention piece 12
The protruding pieces 12a, 12a are formed at the tip of the guide frame 1, and these protruding pieces 12a, 12a are inserted into the hollow part 1a from the slit 1b of the guide frame 1, and engage with both edges of the slit of the guide frame 1 and slide. The moving body 11, that is, the slat 6 is prevented from coming off the guide frame 1.

The leading member 8 and the weight slat 10 are also slidably installed on the guide frame 1 via members 13 and 14 having substantially the same construction as the sliding body 11 described above.

The base ends of the ladder cords 7, 7 are wound around drums 15, 15 provided in the head box 1, respectively. Drums 15, 15 are transmission rods 16
A worm wheel 17 is fixed to the transmission rod 16 , and the worm wheel 17 is fixed to the transmission rod 16 .
A rotational force is transmitted from a rotating rod 19 that rotates the worm gear 18 through a worm gear 18 that meshes with the worm gear 18 . Note that an electric motor may be used as a means for rotation operation, and the worm wheel 17 and the worm gear 18 may be other reverse rotation prevention mechanisms.

Furthermore, constant force springs 20, 20 are provided within the lower end frame 4 as biasing means for biasing the leading member 8. The constant force springs 20, 20 are connected to the leading member 8 via wires 21, 21 extending within the guide frames 1, 1, respectively, and urge the leading member 8 along the guide frame 1 toward the lower end frame 4. Here, the constant force spring 20 refers to a spring that can obtain a constant load regardless of the amount of deflection, and is a band-shaped spring material wound into a roll. The constant force spring 9 can be made of, for example, stainless steel (SUS301).
In addition, there are constant force springs other than constant force types, such as types whose output decreases as the stroke increases.
These are also included in the present invention.

Further, the constant force springs 20, 2 are attached to the leading member 8.
An opening operation means for sliding this toward the upper end frame 5 side against a biasing force of 0 is connected thereto. That is, as an opening operation means, one end of string-like bodies 22, 22 is connected to the leading member 8 from the head box 3 through the respective guide frames 1, 1. The other ends of the strings 22, 22 are led out from the head box 3 to form an opening operation section 22a. In addition, the string-like body 2 is provided in the string-like body outlet 3a of the head box 3.
A clamping claw (not shown) as a stopper that clamps 2 and 22 and allows the leading member 8 to stand still at a desired position.
is provided. This clamping claw is used in general horizontal blinds. The stopper may be any other known stopping means, such as a hook attached to a window frame or the like, on which the string-like body 22 is hooked.

The horizontal blind constructed as described above can be opened and closed by the slats in the following manner. That is, when the opening operation part 22a is pulled, the string-like body 22 slides the leading member 8 along the guide frames 1, 1 toward the upper end frame. In this process, the leading member 8 sequentially presses the slat 6 and causes it to slide in that direction, that is, in the slat opening direction. When the leading member 8 has slid to the required position, if the pulling operation of the opening operation part 22a is stopped, the stopper will clamp the string-like body 22 and maintain the slat open state. In order to close the slat 6, the clamping state of the stopper may be released by a predetermined method. Then, the leading member 8 is connected to the constant force springs 20, 20.
The lower end frame slides in the direction of the lower end frame 4 due to the biasing force, and the slats 6... are sequentially slid in the same direction via the ladder cords 7, 7, thereby realizing the slat closed state.

The closing operation due to the biasing force of the constant force springs 20, 20 in this embodiment is performed from the base end of the guide frame 1 to the curved portion 2.
This is particularly effective in a range where the portion up to the slat is horizontal or inclined 30 degrees downward from the horizontal, and when the inclination angle is greater than that, the closing operation can be realized by the weight of the leading member 8 and the slat 6.

Furthermore, the horizontal blind of this embodiment can rotate the slats in the following manner. That is, when the rotating rod 19 is rotated in a predetermined direction, the drums 15, 15 are rotated, the warp threads 7a, 7a of the ladder cords 7, 7 are slid, the weft threads 7b are inclined, and the slats 6... are rotated. Figure 4 shows
It is a figure which shows the inclination state of the slat by the said rotation operation. In the state shown in figure a, the slat 6a located in the range from the upper end frame 5 to the curved part 2 (horizontal range) with respect to the window 30 is in the light ray intake state, and the range from the curved part 2 to the lower end frame 4 (upright range) The slat 6b located at is in a state where the light beam is cut off. From this state, when the slat 6 is rotated clockwise in the figure, it will be in the state shown in Figure b. That is, in FIG. 1B, the slats 6b located in the horizontal range are in the light beam blocking state, and the slats 6b located in the upright range are in the light receiving state. Further, when the slat 6 is rotated counterclockwise in the figure from the state shown in FIG. 2A, it becomes the state shown in FIG. In other words, in Figure c, the slat 6 is in a state where the light beam is cut off over the entire range. In order to realize this operation, ladder codes 7, 7
However, in the horizontal blind of this embodiment, the range from the base end of the guide frame 1 to the curved part 2 is affected by the weight of the weight slat 10, and from the curved part 2 to the tip. The tension in the range up to this point is generated by the own weight of the slats 6. If you try to apply tension over the entire length of the slat 6 due to its own weight, not only will the tension not be applied in the range from the base end to the curved part 2, but the slat 6 in the curved part 2 will not move from the curved part 2 to the tip. The slats 6 are crushed by the total weight of the slats 6. Therefore, in this embodiment, such a problem is eliminated by using the weight slat 10. In the above-mentioned slat rotation operation, in this embodiment, the edge 11a of the sliding body 11 is formed into a curved surface, so the rotation is performed smoothly, and the rotation fulcrum substantially coincides with the central axis of the slat 6. , so the slat 6 can be rotated without difficulty. Further, since the rotation operation means includes a worm gear mechanism, the rotation position of the slat 6 can be accurately maintained. The above-mentioned slat rotation operation is realized on the condition that the weight slat 10 is present within the curved portion 2. Further, constant force springs 20, 20 are used for the above-mentioned slat rotation operation.
The biasing force of does not have any influence. The rotational movement of this embodiment using the weight slat 10 is particularly effective in a range where the portion from the base end of the guide frame 1 to the curved portion 2 is horizontal or inclined downward by 30 degrees from the horizontal. If the angle is greater than that, tension may also be applied to that portion due to the weight of the slat 6.

Further, the horizontal blind of this embodiment uses the guide frame 1 as a guide structure for the slats 6, etc.
As a result, compared to the wire support structure commonly used in the past, unnecessary force is not applied to the house.
In addition, it is possible to increase the size, the installation work is easy, and the string-like body 22 and the like can be stored in the guide frame 1, thereby maintaining an aesthetic appearance.

Next, a second embodiment of the present invention will be described based on FIG. Incidentally, the same parts or corresponding parts as shown in FIG.

The horizontal blind of this embodiment is installed in a nearly horizontal state such as a skylight, and therefore the guide frame 1 is formed in a straight line. The configuration related to the opening/closing operation is the same as that of the first embodiment, that is, by pulling the string-like body 22 and sliding the leading member 8, the slats 6 are sequentially pressed in the opening direction and slid, thereby performing the opening operation. On the other hand, by sliding the leading member 8 by the urging force of the constant force spring 20, the slat 6 is sequentially pulled and slid in the opening direction via the ladder cord 7, thereby performing an opening operation.

The difference from the first embodiment is the configuration regarding the slat rotation operation. That is, in this embodiment, since the guide frame 1 has no curved portion, the weight slat 10 is not necessary for applying tension to the ladder cords 7, 7. Therefore, in this embodiment, the constant force spring 2
The biasing forces of 0.0 and 20 are also used as means for applying tension to the ladder cords 7 and 7. That is, when the slide 6 is in the forward closed state, the ladder cords 7, 7 are adjusted so that there is no slack, and the constant force springs 20,
This tension state is maintained by a biasing force of 20. With tension applied to the ladder cords 7, 7 in this manner, a rotation operation similar to that of the first embodiment is performed. In addition, the opening/closing operation and rotational operation due to the biasing force of the constant force springs 20, 20 in this embodiment are performed by the guide frame 1.
It is particularly effective in a range where the guide member 8 is horizontal or inclined 30 degrees downward from the horizontal, and when the angle of inclination is greater than that, the opening/closing operation is possible due to the weight of the leading member 8,
Also, due to the weight of the slat 6, the ladder cords 7, 7
Tension can be applied to.

It should be noted that the present invention is not limited to the embodiments described above, and it goes without saying that various modifications can be made without departing from the gist of the invention. For example, a plurality of weight slats 10 may be provided.

[Effect of the invention] As is clear from the above explanation, according to the invention, the leading member is always biased in the slat closing direction with a constant load by the constant force spring, so it can be used for horizontal windows such as skylights or sunrooms. It can be attached to a window having a curved part such as a commercial window, and the slat can be opened and closed with a constant force, and by providing a cutout groove in the slat, the fulcrum of rotation of the slat can be made to substantially coincide with the center line. Moreover, since the edges of the sliding body are curved, it is possible to provide a horizontal blind in which the slats can be rotated smoothly and effortlessly.

[Brief explanation of the drawing]

Fig. 1a is a bottom view of the horizontal blind of the first embodiment, Fig. 2b is a side view of the same, Fig. 2a is a bottom view of the horizontal blind of the second embodiment, and Fig. 2b is a side view of the same. Figure 3a is a front view of the sliding body,
Figure b is a cross-sectional view taken along the line A--A, figure c is a cross-sectional view taken along the line B-B, and Figure 4 is an explanatory diagram of the rotational movement of the slat. DESCRIPTION OF SYMBOLS 1... Guide frame, 6... Slut, 7... Ladder cord, 8... Leading member, 20... Constant force spring.

Claims (1)

[Claims for Utility Model Registration] (1) A plurality of guide frames provided in parallel, and a sliding body attached to the periphery of a notch groove formed on the side edge portion opposite to these guide frames. A large number of slats slidably installed on the guide frame, a ladder cord connecting these slats, a leading member to which the tip of the ladder cord is attached and slidably installed on the guide frame, and the leading member. a constant force spring that always biases the member in the slat closing direction with a constant load;
A horizontal blind comprising an opening operation means for moving the leading member in the slat opening direction, and a stopper for stopping the leading member at a predetermined position. (2) The horizontal blind according to claim 1, wherein the guide frame is installed in a house horizontally or inclined 30 degrees downward from the horizontal. (3) A utility model characterized in that the guide frame has a curved portion and is installed in a house with the portion from the base end to the curved portion being horizontal or inclined 30 degrees downward from the horizontal. A horizontal blind according to registered claim 1. (4) The horizontal blind according to claims 1 to 3, wherein the sliding body is made of a synthetic resin material that has a small coefficient of friction with respect to the guide frame.