JP3949410B2 - Screen device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a screen device for insect protection, light shielding, blindfolding, heat insulation, etc., which can open and close by retracting a stretchable screen which is alternately folded back in the opposite direction. The present invention relates to a screen device provided with a guide member led out along the lower end of the screen according to the expansion and contraction of the screen.
[0002]
[Prior art]
A screen such as a stretchable insect net that is folded back and forth alternately can be opened and closed by lateral pulling, and according to the expansion and contraction of the screen, the screen enters and exits from the lower end of one side frame to which the screen is attached. A screen apparatus having a flexible guide member that is guided along the lower end of the guide and guides the lower end has been proposed.
In the above proposed screen device, when the screen is folded, a member that guides the lower end of the screen is not arranged below the building opening, and the height of the person who goes in and out of the building opening becomes an obstacle to walking. However, it is advantageous in that the lower end of the screen that is opened and closed by lateral pulling can be guided by the guide member.
[0003]
However, in the above screen device, the guide member is usually attached to the lower end of the movable rod connected to one end of the screen. Therefore, when the movable rod is opened and closed to open and close the screen, the guide member is opened accordingly. There is a problem that not only the rubbing sound is generated but also the sliding trace remains on the floor surface. When the screen is stored, the guide member attached to the lower end of the movable rod is stored in one side frame, so the movable rod cannot be moved beyond the height of the side frame, and the screen can be opened and closed. There is also the problem that the range is limited by the height of the side frame.
[0004]
Furthermore, in the above screen device, the screen cannot be stretched by moving to the right half, left half, center, or any other position in the building opening, and the side frame that can accommodate the guide member is movable. Even if the screen can be moved to an arbitrary position together with the side frame and the movable rod, the opening / closing operation of the movable rod does not have left / right symmetry, which may cause a problem in operability.
[0005]
[Problems to be solved by the invention]
The technical problem of the present invention is to provide a screen device which can appropriately solve the various problems of the previously proposed screen device by considering the tensioning of the tension string.
[0006]
[Means for Solving the Problems]
The screen device of the present invention for solving the above-mentioned problem is basically constructed by connecting movable rods to both ends of a screen that is alternately folded back and forth in a reverse direction, and by horizontally pulling those movable rods, In the screen device in which the screen can be opened and closed at an arbitrary position between the left and right side frames of the building opening, both the movable rods are bent in and out from the lower portions of the movable rods according to the expansion and contraction of the screen. , e Bei flexible guide member for guiding the lower end of the screen when derived along the lower end of the screen in the tensioned state, between the lower end portions and a movable rail of the guide member, the guide A stopper mechanism for preventing the end of the member from escaping from the lower part of the movable rod is provided .
[0007]
In the screen device having the above-described configuration, generally, a tension string is connected to both ends of the guide member, the tension string is guided from both ends of the guide member to the upper end of each movable rod, and from the upper end to each movable rod. After guiding to the near side frame, it is folded at each side frame and the ends of the tension cords are connected to each other, so that the guide member and the tension cord form a loop shape, or at both ends of the guide member It is used by guiding the connected tension string from the both ends of the guide member to the upper end of each movable rod, guiding it from the upper end to the side frame close to each movable rod, and connecting the tip there. The other end of the tension string connected to both ends of the guide member can be connected to an arbitrary portion without any problem.
In the above screen device, the movable rod can be provided with a parallel movement mechanism that restrains the posture of the movable rod with a necessary number of tension cords including or not including the tension cord connected to the guide member.
[0008]
On the other hand, the guide member in the screen device rubs against the floor surface when a forced driving force acts in the operating direction of the movable rod through a tension string or the like as the screen is opened and closed. However, if the driving force does not act or is relatively small even if it acts, the gap between the guide member and the floor or between the guide member and the non-driving side movable rod The guide member does not move relative to the floor surface due to frictional force acting between them, so the guide member does not rub on the floor surface of the building opening and generates a rubbing sound or slides on the floor surface. There are no marks left.
Also, by providing a stopper mechanism between the both ends of the guide member and the lower part of the movable rod to prevent the end of the guide member from escaping from the lower portion of the movable rod, the stopper mechanism guides the movable member from the movable rod. Not only can the member be prevented from escaping, but also a forcible driving force is applied to the guide member when necessary, so that there is no need for special operation even when the guide member needs to be moved. The operability of is improved.
[0009]
In addition, in the above screen device, the so-called screen suspension source can be changed, and the screen can be moved and stretched to the right half, left half, center, and other arbitrary positions in the building opening, in those cases, Left and right symmetry is imparted to the opening and closing operation of the movable rods provided at both ends of the screen, and the operability is excellent.
[0010]
In particular, in the above screen device, the tension string connected to both ends of the guide member is led from the upper end of each movable rod to the side frame and folded, and the ends of the tension strings are connected to each other so that the guide member and the tension string loop. When the screen is stretched, the guide member may rub against the floor surface in some cases, but otherwise the guide member may be against the floor surface. Does not move relatively.
Further, when the screen is stored, the guide member provided at the lower end of the movable rod can be accommodated in both movable rods, so that the range of opening and closing of the screen can be expanded up to about twice the height of the movable rod. be able to.
[0012]
Further, in the above screen device, the tension strings connected to both ends of the guide member are guided from the both ends of the guide member to the upper ends of the movable rods, and are guided from the upper ends to the side frames close to the movable rods, and the leading ends thereof In this case, the screen can be opened and closed within the range of the height of the movable rod, but the guide can be operated even if the screen is opened or closed and the screen extension position is changed. The member does not rub against the floor surface.
[0013]
As described above, according to the screen device of the present invention, various problems in the conventional screen device can be solved as appropriate by considering the tensioning of the string.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
1 to 6 show a first embodiment of a screen device according to the present invention. Here, the screen device according to the present invention is folded back and forth alternately as a screen in the opposite direction so that it can be expanded and contracted in an accordion manner. A case is shown in which an insect repellent net 2 is used and the insect repellent net 1 is configured to be opened and closed by lateral pulling.
The screen can be configured not only as a net for insect repellent but also as a screen for shading, blinding, or heat insulation.
[0015]
The insect screen 1 generally includes a screen frame 3, a net 2 that can be opened and closed by lateral opening in the screen door frame 3, and a pair of open / close operation movable rods 5 </ b> A connected to both ends of the net 2. , 5B. As will be described in detail below, these movable rods 5A and 5B are designed to draw the net 2 by horizontal pulling at an arbitrary position between the left and right side frames 6A and 6B of the screen door frame (screen frame) 3 installed in the building opening. It opens and closes.
[0016]
The screen door frame 3 has left and right side frames 6A and 6B and an upper horizontal frame 10. However, it is not necessary to provide a special horizontal frame at the lower portion of the screen door frame 3, and The guide member 12 that suppresses the shaking of 2 is provided so as to appear and disappear from the lower ends thereof as the movable rods 5A and 5B move.
However, the horizontal frame at the lower part of the screen door frame 3 can be provided to such an extent that it does not hinder the walking of the person entering and exiting the building opening, for example, a groove or the like for guiding the sliding of the guide member 12 is provided. It is possible to realize barrier-free for the elderly and the disabled.
[0017]
The guide member 12 bends in and out from the lower part of the movable rods 5A and 5B according to the expansion and contraction of the net 2 accompanying the operation of the movable rods 5A and 5B, and the lower end of the net 2 in the stretched state. Is provided with a function of guiding the state in which the lower end of the net is held, and suppressing the shaking of the lower end of the net 2 due to wind or the like. Specifically, as shown in FIG. In addition, a part of the extruded material having a substantially U-shaped cross section made of an elastic flexible synthetic resin is partially cut off.
[0018]
That is, a pair of shaking stoppers in which a bottom portion 12b that follows the lower end of the net 2 and a plurality of recessed portions 12c that rise up along the front and back outer surfaces of the net 2 and allow the bottom portion 12b to be bent are cut out. The guide ribs 12e and 12e are provided on both sides of the bottom surface of the bottom portion 12b, and the concave portions in the guide ribs 12e are provided. A notch 12f that facilitates bending of the bottom 12b is provided at a position corresponding to the notch 12c.
The guide protrusions 12e and 12e are provided with a guide portion B having a height that does not obstruct walking on the floor of the building opening (see FIGS. 6 and 9). Proper sliding of the guide member 12 is stabilized by being along the guide portion B.
[0019]
It should be noted that the guide member 12 shown in FIG. 7 is merely an example, and a large number of guide piece pieces that are divided and formed with portions corresponding to the pair of anti-sway portions 12a and 12a and the bottom portion 12b. As in the case of the guide member 12, it can be bent or rotated.
[0020]
As described above, the guide member 12 is bent from the lower part of the movable rods 5A and 5B in accordance with the opening and closing of the net 2, and enters and exits the inside of the movable rods 5A and 5B. As shown in FIG. 4, the movable rod 5A is provided with inner and outer curved guide portions 14 and 15 for bending the guide member 12, and the guide member is moved along the movable rod. 12 is migrated. The same applies to the movable rod 5B.
Note that the inner curved guide portion 14 in FIG. 4 is configured to bend the guide member 12 by contacting the bottom portion 12b of the guide member 12 or the pair of anti-sway portions 12a and 12a with low friction. The portion 14 may be a roller-shaped member that contacts a similar portion of the guide member 12.
[0021]
Moreover, the stopper member 16 which contacts a part of the lower part of the movable rod when it moves to the lower end in the movable rods 5A and 5B is provided at both end portions of the guide member 12, and thereby the guide member A stopper mechanism for preventing the end of 12 from escaping from the lower part of the movable rods 5A and 5B is formed.
On the other hand, since the screen door 1 is assumed to be used along a sliding screen 30 as shown in FIG. 8, a pair of movable rods 5A and 5B are provided on the horizontal frame 10 at the top of the screen door frame 3. An opening restriction member 17 provided with stoppers 18A and 18B at both ends is provided so as to open within a range corresponding to one shoji, and the opening restriction member 17 can be changed in order to change the tension position of the net 2. Is held movably left and right along the upper horizontal frame 10.
[0022]
In order to operate the guide member 12 stably and constitute a parallel movement mechanism of the movable rods 5A and 5B, a tension string 20 is connected to both ends of the guide member 12, and the tension string 20 is connected to the guide member 12. The inside of each movable rod 5A, 5B is led from the both ends of the frame to the upper end, led from the upper end to the side frames 6A, 6B close to each movable rod 5A, 5B, and then folded back at each side frame 6A, 6B. The guide member 12 and the tension string 20 are formed in a loop shape with the ends of the strings connected to each other. Therefore, within the range where the movement of the guide member 12 is not restricted by the stopper mechanism, the tension cord 20 or the guide member 12 can be forced to move in the direction along the loop, and can be moved in that direction. This can be achieved regardless of the position of the movable rod. Moreover, no matter what position each of the movable rods 5A, 5B moves, as long as they have a normal posture, the tension string 20 does not become slack.
[0023]
In order to stably translate the movable rods 5A and 5B attached to one end of the net 2, the movable rods 5A and 5B are provided with the movable rods 5A and 5B in cooperation with the guide member 12 and the tension string 20. A parallel movement mechanism is provided for parallel movement while keeping the posture constant.
First, the tension member 20 connecting the guide member 12 and both ends thereof suppresses the upper ends of the two movable rods 5A and 5B from being inclined to the net 2 side in FIG. 1 or FIG. It functions to suppress the lower end of 5B from opening.
[0024]
On the other hand, the tension strings (solid lines) 22 fixed to the lower portions of the left and right side frames 6A and 6B pass from the lower ends of the side frames 6A and 6B to the upper portions of the movable rods 5A and 5B through the lower ends of the movable rods 5A and 5B. Therefore, it is stretched in such a manner that it is inserted into the net 2 and connected to each other. Even if each of the movable rods 5A and 5B is moved to any position, the tension string 22 does not sag as long as they have a normal posture. In contrast to the tension string 20, the tension string 22 prevents the upper ends of both the movable rods 5A and 5B from tilting in the opening direction in FIG. 1 or FIG. 4, and both the movable rods 5A and 5B. It functions to suppress the lower end of the tilting toward the net 2 side.
Therefore, the movable hooks 5A and 5B are always kept in a constant posture when they move by the action of the tension string 20, the guide member 12, and the tension string 22, that is, they are parallel to the movable collar. A moving mechanism is configured.
[0025]
Apart from this parallel movement mechanism, in the illustrated screen door, two tension strings 24, 26 are stretched between the left and right side frames 6A, 6B and the movable rods 5A, 5B (easy to understand). (Indicated by the dotted line)
One end of the tension cord 24 is connected to the lower end of the side frame 6A, and from there, the inside of the movable rod 5A is guided to the upper part through the lower end of the movable rod 5A on the side frame 6A side. After returning to the lower part of 5A, it is inserted into the net 2 and reaches the lower part of the other movable rod 5B. After the inside of the movable rod 5B is guided to the upper end, the other side frame 6B extends along the horizontal frame 10 from there. It leads to the upper end and the end is fixed there.
Further, one end of the tension cord 26 is connected to the upper end of the side frame 6A, and from there, the inside of the movable rod 5A is guided to the middle through the upper end of the movable rod 5A on the side frame 6A side, and from there into the net 2 After passing through and reaching the middle part of the other movable rod 5B, and then guiding the inside of the movable rod 5B to the upper end, the inside of the movable rod 5B is again guided to the lower end, and from there to the lower end of the other side frame 6B, The end is fixed there.
These tension strings 24 and 26 can also function as a part of the parallel movement mechanism.
[0026]
In the portions where the tension strings 22, 24, 26 are inserted into the net 2 and are stretched in the horizontal direction, the tension of the net 2 is prevented by these tension strings, and the tension state of the net 2 is stabilized. be able to.
Further, although not clearly shown, a turning element is provided at the folded portion or the bent portion of each tension cord 20, 22, 24, 26 in order to facilitate the movement of each tension string. As these turning elements, a sliding member made of a synthetic resin or a pulley having a small resistance to each tension string can be used.
Furthermore, in the parallel movement mechanism, the guide member 12 and the tension string 20 connected thereto are used, but as is well known, a parallel movement mechanism that does not use the guide member 12 may be used.
[0027]
FIGS. 8 and 9 exemplify the usage mode of the screen door 1, and here, shows a case where the screen door 1 is installed along the sliding door 30 and used inside.
Accordingly, the pair of movable eaves 5A and 5B is configured to open within a range corresponding to one shoji 30 and the extension position of the net 2 can be changed to any other position on the left and right of the building opening. Yes.
Note that the use of the screen door 1 is not limited to such a use mode, and the net can be stretched over the whole or a part of the building opening according to the opening / closing mode of the door sliding door of the building opening, for example. It can be used in any manner such as.
[0028]
When the movable screen 5B is operated from the state shown in FIG. 1 and moved to the side of the movable guide 5A, the horizontal sliding screen having the above configuration is in a state where the guide member 12 is accommodated in the movable guide 5B as shown in FIG. When the net 2 is folded and the movable rod 5A is operated from the state of FIG. 1 and moved to the movable rod 5B side, the guide member 12 is accommodated in the movable rod 5A as shown in FIG. Net 2 is folded. In any case, when the moved movable rod is returned to the original position, the net 2 is stretched in the state shown in FIG.
When the net 2 is opened and closed by the operation of the movable rod, the guide member 12 enters and exits from the lower end of the movable rod. At this time, the guide member 12 slides along the guide portion B on the floor surface. No rubbing noise is generated and no sliding traces remain on the floor surface.
[0029]
On the other hand, when the net 2 is moved to the left together with the movable rods 5A and 5B from the state of FIG. 1 and the extension position of the net 2 is changed as shown in FIG. 4, the movable rods 5A and 5B and the guide What is necessary is just to move them, leaving the positional relationship of the member 12, and the net | network 2 can be opened and closed in the position of FIG. In this case, the guide member 12 moves while rubbing the floor surface, but since there are relatively few opportunities to perform such an operation, noise and sliding traces on the floor surface do not become prominent.
In addition, when the movable rods 5A and 5B and the guide member 12 described above are moved, the movable rods 5A and 5B can be moved without considering their positional relationship. Since the stopper mechanism is provided between the movable rods 5A and 5B and the guide member 12 even if the guide member 12 is moved in the direction of escaping from the lower portion, the guide member 12 is forced to the floor surface by the stopper mechanism. You will be able to move up.
[0030]
That is, the guide member 12 rubs against the floor surface when a forced driving force is applied in the operation direction of the movable rod as the net 2 opens and closes. If the driving force does not act or is relatively small even if it acts, the guide member 12 and the floor surface, or between the guide member 12 and the non-drive side movable rod The guide member 12 does not rub on the floor surface due to the frictional force acting on the floor.
[0031]
Moreover, in the said screen door, what is called the net 2 can be changed, the net 2 can be moved and stretched to the whole building opening, the right half, the left half, the center, and other arbitrary positions. In this case, left and right symmetry is given to the opening / closing operation of the movable rods 5A and 5B provided at both ends of the net 2, and the operability is excellent. Further, when the net 2 is not stretched, the guide member 12 provided at the lower end of the movable rod can be accommodated in both movable rods 5A and 5B, so that the opening / closing range of the net 2 can be set to the height of the movable rod. It can be expanded to a limit of almost twice.
[0032]
FIG. 10 shows the configuration of a second embodiment of the present invention. In this second embodiment, tension strings 50A and 50B are connected to both ends of a guide member 42 similar to the above-described embodiment, and the tension The strings are guided from both ends of the guide member 42 to the upper ends of the movable rods 5A and 5B, and guided from the upper ends to the side frames 6A and 6B close to the movable rods, and the tips are connected thereto. In this case, the range in which the net 2 can be opened and closed is limited within the range of the height of the movable rods 5A and 5B. However, even if the net 2 is opened or closed and the net extension position is changed, the guide member 42 Does not rub the floor.
[0033]
Since the other configurations and operations of the second embodiment are not substantially different from those of the first embodiment, the same reference numerals are given to the main parts and the description thereof is omitted.
In addition, although the embodiment in the case where the screen device of the present invention is applied to a screen door has been described here, it is needless to say that the present invention can be applied to the other uses described above.
[0034]
【The invention's effect】
According to the screen device of the present invention described in detail above, various problems in the conventional screen device can be appropriately solved by considering the tensioning of the tension string, for example, with respect to the guide member If a forcible driving force does not act in the operating direction of the movable rod, or if it is relatively small even if it acts, it is between the guide member and the floor or between the guide member and the non-driven movable rod. The guide member does not move relative to the floor surface due to frictional forces acting on the floor, so that the guide member does not rub on the floor surface of the building opening, and a rubbing sound is generated or No sliding marks remain.
Also, in the above screen device, the so-called screen suspension can be changed, and the screen can be moved and stretched to the right half, left half, center, and other arbitrary positions in the building opening. Left and right symmetry is imparted to the opening and closing operation of the movable rods provided at both ends of the screen, and the operability is excellent.
[Brief description of the drawings]
FIG. 1 is a front view of a first embodiment of a screen device according to the present invention.
FIG. 2 is a front view showing another operation state of the embodiment.
FIG. 3 is a front view showing still another operation state of the embodiment.
FIG. 4 is a longitudinal sectional front view of a main part showing still another operation state of the embodiment.
FIG. 5 is a horizontal sectional view of the embodiment.
FIG. 6 is a side sectional view of the embodiment.
FIG. 7 is a partial perspective view of the guide member in the embodiment.
FIG. 8 is a horizontal sectional view showing an installation state of the screen device of the embodiment.
FIG. 9 is a side sectional view showing an installation state of the screen device of the embodiment.
FIG. 10 is a front view showing a second embodiment of the screen device according to the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Screen door 2 Net 3 Screen door frame 5A, 5B Movable cage 6A, 6B Side frame 10 Horizontal frame member 12, 42 Guide member 20, 22, 24, 26, 50A, 50B Tension string

Claims (4)

By connecting movable rods to both ends of the screen that are alternately folded back and forth, the screen can be opened and closed at any position between the left and right side frames of the building opening. Screen device,
The above-mentioned movable rods are bent in and out from the lower portions of the movable rods according to the expansion and contraction of the screens, and guide the lower ends of the screens when they are led out along the lower ends of the stretched screens. for example Bei the flexible of the guide member,
A stopper mechanism is provided between the both ends of the guide member and the lower part of the movable rod to prevent the end of the guide member from escaping from the lower part of the movable rod.
A screen device. Connect the tension string to both ends of the guide member, guide the tension string from the both ends of the guide member to the upper end of each movable rod, and guide the tension string from the upper end to the side frame close to each movable rod. The guide member and the tension string are formed in a loop shape, with the ends of the tension strings connected to each other.
The screen device according to claim 1. A tension string is connected to both ends of the guide member, and the tension string is guided from both ends of the guide member to the upper end of each movable rod, and is guided from the upper end to the side frame near each movable rod, and the tip is coupled thereto. ,
The screen device according to claim 1. The movable rod is provided with a parallel movement mechanism for restraining the posture of the movable rod with a necessary number of tension cords including or not including the tension cord connected to the guide member.
The screen device according to claim 2 , wherein the screen device is a screen device.

Images