JP4057789B2 - Roll screen - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a novel roll screen.
[0002]
[Prior art]
A conventional roll screen is composed of one end of a screen connected to a winding pipe, and the screen can be wound and unwound on the winding pipe. The other end of the screen is pulled down and unwound from the winding pipe. By exposing, the line of sight from the outside can be blocked, blinded, or the picture on the screen can be seen.
[0003]
[Problems to be solved by the invention]
However, in such a conventional roll screen, since only the pattern of the screen can be exposed, there is a problem that the change is scarce.
[0004]
In order to solve this problem, two winding pipes are arranged in parallel, and one end of the screen is connected to each winding pipe so that the screen can be wound and unwound. A screen is known in which a screen connected to the other winding pipe is unwound and the screen connected to the other winding pipe is taken up (for example, Japanese Patent Laid-Open No. 4-80492). According to such a roll screen, only two screens of the two screens are unrolled and exposed, so that two patterns can be enjoyed according to the mood and varied. Can do.
[0005]
However, when two winding pipes are arranged in parallel as described above, there is a problem that the product size is increased and the price is very expensive as compared with one winding pipe.
[0006]
This invention is made | formed in view of this subject, and it aims at providing the roll screen which can expose a different screen with one winding pipe.
[0007]
[Means for Solving the Problems]
In order to achieve the above-mentioned object, the invention according to claim 1 of the present invention is a roll in which upper ends of the first screen and the second screen are connected to a winding pipe which is rotatably arranged. When one screen, which is in the lowered state and is exposed to the front side, is wound on the winding pipe, the other screen is also wound on the winding pipe, and the lower end of the other screen is It is configured to be able to pass over the take-up pipe, and when the other screen whose lower end has passed over the take-up pipe is unwound from the take-up pipe, the other screen descends to the front side Configured to be exposed.
[0008]
Each time the screen winding and unwinding cycle by the winding pipe is repeated, the screen exposed to the front side of the two screens is switched. In this way, by switching the screen exposed to the front side of the roll screen with a single winding pipe, two types of screens can be switched, and a roll screen rich in change can be obtained.
[0009]
According to a second aspect of the present invention, in the first aspect of the present invention, when the first screen and the second screen are unwound from the take-up pipe, they both overlap and descend. Since the two screens overlap and descend together, a synergistic effect (for example, an effect of improving the light shielding property) can be provided by combining the screens.
[0010]
According to a third aspect of the present invention, in the first aspect of the present invention, a holding portion for holding the screen that is not exposed is provided in the vicinity of the take-up pipe, and the first screen and the first screen are provided. When the second screen is unwound from the winding pipe, only the screen that is not held by the holding portion is lowered. Since only one of the screens not held by the holding part is lowered and exposed, it is possible to fully exhibit the texture that the screen has independently when exposed.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1 to 7 are views showing an embodiment of a roll screen according to the present invention.
[0012]
As shown in FIG. 1, the roll screen 10 includes a winding pipe 12 rotatably supported on side plates 22 provided at both ends of a set frame 20 fixed to a window frame, a wall, and the like, and a winding pipe 12. The first screen 14 and the second screen 16 are attached to the upper ends of the first screen 14 and the second screen 16, respectively. One side plate 22 is provided with a box 15 containing a pulley for transmitting rotation to the take-up pipe 12, and an operation chain 18 is wound around the pulley and is wound around the pulley of the operation chain 18. The lower part is not derived from the box 15. The operation chain 18 can be composed of an endless ball chain. A clutch spring is provided between the pulley and the take-up pipe 12, and the rotation of the pulley is transmitted to the take-up pipe 12 by the clutch spring, but the first screen 14, the second screen 16, etc. The rotation of the winding pipe 12 due to its own weight is not transmitted to the pulley, and if the rotation of the pulley by the operation chain 18 is stopped, the forward rotation or the reverse rotation of the winding pipe 12 is prevented. Can be done.
[0013]
In this embodiment, the first screen 14 is a wood material and the second screen 16 is an opaque material. These screens can be attached at arbitrary positions in the circumferential direction when viewed in the cross section of the take-up pipe 12, but in this embodiment, they are attached at positions separated from each other by 180 degrees. In addition, weight bars 14a and 16a are provided at the lower ends of the screens 14 and 16, respectively.
[0014]
The two screens 14 and 16 are basically overlapped with each other. In the state shown in FIG. 2, the screen 14 is exposed to the front of the roll screen 10 and is completely lowered. Is disposed to the rear side of the screen 14 through the upper side of the winding pipe 12, and the user on the front side of the roll screen 10 can mainly see the handle of the tree of the screen 14. It can be done. Since the opaque fabric screen 16 is on the rear side, the light shielding property is enhanced and the privacy is ensured as compared with the roll screen having only the ordinary warp screen 14. The screen 16 has a lowering length shorter than the screen 14 as much as it passes the upper side of the winding pipe 12, and the weight bar 16 a of the screen 16 is positioned above the weight bar 14 a of the screen 14. It has been. Of course, at this time, the length of the screen 16 is such that the position of the weight bar 16 a of the screen 16 coincides with the weight bar 14 a of the screen 14 so that the screen 16 is completely disposed on the rear side of the screen 14. Can be set longer than the screen 14.
[0015]
When it is desired to expose the other screen 16, the following is performed. First, the operation chain 18 is operated to rotate the winding pipe 12 in the direction in which the screen 14 is wound. When the screen 14 is wound, the screen 16 is also wound together (FIGS. 3 and 7B), but the weight bar 16a of the screen 16 is higher than the weight bar 14a. Further, since the screen 16 is wound on the outer diameter side of the screen 14, the weight bar 16a of the screen 16 reaches the winding pipe 12 earlier than the weight bar 14a of the screen 14 due to the difference between the inner and outer diameters (FIG. 4). FIG. 7 (c)). When the take-up pipe 12 is further rotated in the same direction in this state, the weight bar 16a of the screen 16 passes over the take-up pipe 12 and then drops from the take-up pipe 12 so that the screen 16 is moved to the screen 14. (Figs. 5 and 7 (d)). From this state, when the operation chain 18 is operated to rotate the winding pipe 12 in the direction of unwinding the screen 16, the screen 16 is unrolled and the screen 14 is unwound together. 14 is arranged on the rear side of the screen 16, and in the state shown in FIG. 6 (FIG. 7E) in which the screen 16 is completely lowered, the front-rear relationship is completely opposite to the state in FIG. In this way, the screen 16 is exposed to the front surface, and the user can mainly see the pattern of the screen 16.
[0016]
By repeating the operations shown in FIGS. 2 to 6 (FIGS. 7A to 7E), the screen 14 and the screen 16 can be alternately exposed on the front surface side. Switching between two screens can be enjoyed, and two patterns can be switched as desired. Further, when the screen is unnecessary, like the conventional roll screen, the operation of the operation chain 18 is stopped in the state shown in FIG. 4 so that the two screens 14 and 16 are wound together. Can do.
[0017]
Next, FIG. 8 thru | or 13 is a figure showing 2nd Embodiment of this invention. In this figure, the same members as those of the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted. This embodiment is different from the first embodiment in that a holding portion 24 that holds the screen that is not exposed is provided on the back surface of the set frame 20.
[0018]
That is, a holding portion 24 for receiving one of the weight bars 14a and 16a of the screens 14 and 16 and holding one of the screens 14 and 16 is provided in parallel with the set frame 20 and close to the winding pipe 12. ing. The holding portion 24 has a fixed plate portion 24a whose both ends are fixed to the side plate 22, a movable plate portion 24b that is hinged to the fixed plate portion 24a and is swingable, and a movable plate portion 24b that is always a fixed plate. It is composed of a spring (not shown) that urges the portion 24a in an angled direction and a stopper (not shown) that prevents the movable plate portion 24b from swinging more than a predetermined amount. The movable plate portion 24b is stopped at a maximum angle determined by a stopper with respect to the fixed plate portion 24a, so that the weight plate can be received by the fixed plate portion 24a and the movable plate portion 24b. Yes.
[0019]
In the state shown in FIG. 9, while the screen 14 is completely lowered and exposed, the lowering of the weight bar 16a of the screen 16 is prevented by the holding portion 24, and the weight bar 16a is held by the holding portion 24. At the same time, the screen 16 is folded and held above the holding portion 24. Therefore, the user can see only the screen 14. When it is desired to expose the screen 16 from this state, the operation chain 18 is operated to rotate the winding pipe 12 in the direction in which the screen 14 is wound. As the screen 14 is wound, the screen 16 also moves from the holding portion 24 to the winding pipe 12 and is wound together (FIG. 10), and the weight bar 16a is placed on the winding pipe 12. When passing through, the weight bar 16a falls from the winding pipe 12 (FIGS. 11 to 12). At the same time, when the weight bar 14a of the screen 14 reaches the movable plate portion 24b of the holding portion 24, it lifts the movable plate portion 24b against the urging force of the spring, and then moves upward above the movable plate portion 24b. And held by the holding unit 24. When the operation chain 18 is operated from this state and the winding pipe 12 is rotated in the direction of unwinding the screen 16, the screen 14 is unrolled together with the screen 16, but the screen 14 is unrolled. The portion is folded and held above the holding portion 24 and does not descend. Thus, in the state shown in FIG. 13 in which only the screen 16 is lowered and the screen 16 is completely lowered, the relationship between the state of FIG. 9 and the screen is completely reversed. Thus, only the screen 16 is lowered, and the user can see the pattern of the screen 16.
[0020]
By repeating the operations shown in FIGS. 9 to 13, the screen 14 and the screen 16 can be alternately exposed, and switching between the two screens can be enjoyed. In the second embodiment, only one screen is lowered and the two screens are not overlapped. Therefore, when each screen is lowered, it is possible to make use of the texture of the screen independently.
[0021]
As an example of two screens, in the above example, a combination of a warp cloth and an opaque cloth is illustrated, but the present invention is not limited to this, and any combination can be adopted.
[0022]
【The invention's effect】
As described above, according to the present invention, since different screens can be alternately exposed, switching between different screens can be enjoyed, and a roll screen rich in change can be obtained. A winding pipe is not required for each number of screens, and it is configured by one winding pipe, so that it can be manufactured at a low cost.
[Brief description of the drawings]
FIG. 1 is an overall perspective view showing an embodiment of a roll screen according to a first embodiment of the present invention.
FIG. 2 is a cross-sectional view illustrating a state in which one screen is exposed forward in the first embodiment.
FIG. 3 is a cross-sectional view of the intermediate state when the winding pipe is wound in the screen winding direction in the first embodiment.
FIG. 4 is a cross-sectional view showing a state in which the winding pipe is wound in the screen winding direction in the first embodiment, and the weight bar of the other screen passes over the winding pipe.
FIG. 5 is a cross-sectional view showing a state after the winding pipe is wound in the screen winding direction in the first embodiment and the weight bar of the other screen passes over the winding pipe.
FIG. 6 is a cross-sectional view showing a state where the winding pipe is unwound in the screen unwinding direction and the other screen is exposed forward in the first embodiment.
FIGS. 7A to 7E are partial perspective views corresponding to the states of FIGS.
FIG. 8 is an overall perspective view showing an embodiment of a roll screen according to a second embodiment of the present invention.
FIG. 9 is a cross-sectional view illustrating a state in which one screen is exposed forward in the second embodiment.
FIG. 10 is a cross-sectional view of the intermediate state when the winding pipe is wound in the screen winding direction in the second embodiment.
FIG. 11 is a cross-sectional view showing a state where the winding pipe is wound in the screen winding direction in the second embodiment and the weight bar of the other screen passes over the winding pipe.
FIG. 12 is a cross-sectional view showing a state after the winding pipe is wound in the screen winding direction in the second embodiment and the weight bar of the other screen passes over the winding pipe.
FIG. 13 is a cross-sectional view showing a state in which the winding pipe is unwound in the screen unwinding direction and the other screen is exposed forward in the second embodiment.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Roll screen 12 Winding pipe 14 1st screen 16 2nd screen 24 Holding part

Claims (3)

A roll screen in which the upper ends of the first screen (14) and the second screen (16) are connected to a winding pipe (12) that is rotatably arranged, and in a lowered state, the front side When one screen exposed to the winding pipe (12) is wound on the winding pipe (12), the other screen is also wound on the winding pipe, and the lower end of the other screen is located above the winding pipe (12). Further, when the other screen whose lower end has passed above the winding pipe (12) is unwound from the winding pipe (12), the other screen descends and moves forward. Roll screen configured to be exposed to the side. The roll screen according to claim 1, wherein when the first screen (14) and the second screen (16) are unwound from the take-up pipe (12), the rolls overlap and descend together. A holding portion (24) for holding the screen that is not exposed is provided in the vicinity of the winding pipe (12), and the first screen (14) and the second screen (16) are provided. 2. A roll screen according to claim 1, wherein when unrolled from the take-up pipe (12), only the screen not held by the holding part is lowered.

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