JP2000096957A - Sliding screen unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sliding screen unit that is simple in a structure requiring a small number of component parts while being easy for fabrication and operation and useful for materializing ventilation or shading while being excellent in external appearance as seen from the interior. SOLUTION: A sliding screen unit for ventilation or shading to be installed at the interior side of window frames 32 and 33 of an outward-opening window 30 is composed of a pair of guide frames 2 and 2 to be fitted vertically to positions opposite to an opening K at the interior side of the window frames 32 and 33, two lines of screen running parts 4 and 4 provided being in parallel with each other at the inside and the outside of each of the guide frames 2, a screen U-turn device 10 provided at the upper end in the longitudinal direction of the guide frames 2 and 2, and a screen 24 for ventilation or shading having a net body or a sheet 25 that slides while being caught at its both edges with the guide frames 2 and 2 and is changed in the direction of running toward the upside or the downside by operation of a roller 20 of the U-turn device 10.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a slidable sliding screen unit for ventilation or shading, which is mounted on the indoor side of a window frame, and particularly has a simple structure, is easy to operate, and has an excellent appearance from the room. The present invention relates to the screen unit.

[0002]

2. Description of the Related Art In an outside window, a sliding window, and the like, in which a shoji opens to the outside of the room, an insect screen is mounted on the indoor side of a window frame that does not hinder opening and closing of the shoji. For example, an outside window 100 shown in FIG. 6 has a screen door 110 attached to the indoor side of window frames 102 and 103. That is, the casement window 100
Has upper and lower window frames 102 and 103 and a shoji 106 between them, and the shoji 106 has a rotatable bracket 1 above and below one side end thereof.
The window frame 102 supports the window frames 102 and 103 so that the window frames 102 and 103 can rotate to the outside of the room. At the time of closing as shown in the drawing, the shoji 106 is in contact with the tight members 104 of the window frames 102 and 103 to maintain airtightness. Reference numeral 108 in FIG. 6 denotes an opening / closing handle provided at the other end of the shoji screen 106.

On the other hand, when the casement window 100 is a part of a bay window for a house, as shown in FIG.
Are mounted on the indoor side of the window frames 102 and 103. The screen door 110 includes a pair of vertical frames 112 having a pair of inner and outer guide grooves 113 and inner and outer frames 2 inside the upper and lower frames 114 and 115.
A plurality of screen shojis 116 are provided so as to be movable up and down. Each screen shoji 116
Is a structure in which a net 117 made of a metal wire is stretched in each frame 118 of four circumferences.

[0006] The reason why the screen shroud 116 is divided into two inside and outside is that the handle 108 of the outside window 100 can be operated. That is, when the screen door 110 is mounted close to the opening window 100, the outdoor screen shoji 116 collides with the handle 108. In order to prevent this, as shown in FIG. 6, a stopper 119 is fixed to the vertical frame 112, and a net shoji on the outdoor side is fixed to prevent the lowering. Therefore, in order to open and close the sash 106 of the casement window 100, the handle 10
When the operator operates the screen door 8, the user operates the screen door 116 on the indoor side in a state where the lower half of the screen door 110 is opened as shown by an arrow in FIG. 6.

[0005]

However, the screen door 110
Are two inner and outer screen shojis 116 each having a frame 118 attached to the four circumferences of the net 117, a pair of vertical frames 112, and upper and lower frames 11.
4,115, the structure is complicated, the number of parts is large, and the number of assembling steps is also large. Moreover, one of the screen shoji 1
Since the 16 frames 118 are located at the center of the opening K, the aesthetic appearance from the room is impaired. Further, as shown in FIG.
When the door 0 is mounted close to the opening window 100, it is necessary to fix the outdoor screen shoji 116 with the stopper 119. If the screen door 110 is further shifted to the indoor side to avoid this, there are various problems such as a space in the inward and outward directions between the screen door 100 and the outside window 100 is required, and it is difficult to operate the handle 108.

On the other hand, it is conceivable to attach an inwardly opening screen door (not shown) instead of the screen door 110, but it requires a four-sided frame, a four-sided frame lined with a mesh body, a hinge, and the like. And the field of view of the opening is considerably narrowed. The present invention solves the above-mentioned problems in the prior art, and has a simple structure, a small number of parts, easy to assemble and operate, a ventilation screen or a light shield, and an excellent aesthetic appearance from the room. It is an object to provide a unit.

[0007]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a screen made of a ventilation net or a light-shielding sheet which can slide vertically or horizontally in a room inside a window frame and can make a U-turn. It was made with the idea of disposing. That is, the sliding type screen unit of the present invention is a slidable ventilation or light shielding screen unit provided on the indoor side of the window frame, wherein the sliding type screen unit is a pair of screen units mounted to face the opening on the indoor side of the window frame. Guide frames, two parallel screen running portions provided on each guide frame, screen U-turn means provided at at least one end in the longitudinal direction of the pair of guide frames, and both side edges of the pair of guide frames. And a screen for ventilation or light shielding, which is slid while being sandwiched and whose direction is changed in the opposite direction by the U-turn means.

According to this, the structure is simple, the number of parts is small, and the assembly is easy.
A simple operation of turning and sliding is sufficient, and when the entire opening is covered with the screen, the bars at both ends of the screen are not located in the middle of the opening, so that the aesthetic appearance from the room can be improved. Further, the screen U-turn means comprises:
A sliding roller including a rotatable roller supporting both ends, or a semicircular column having both ends fixed thereto, and a storage box that stores the roller or the semicircular column and is connected to the pair of guide frames. A formula screen unit is also included. According to this, the screen can be reliably U-turned by a simple roller or the like disposed in the storage box, and can be easily assembled to the guide frame.

[0009] The present invention also includes a sliding screen unit, wherein the storage box has an opening provided on the indoor side and a cover for opening and closing the opening. According to this, it is possible to easily set the rollers and the like in the storage box from the opening while accommodating the side edges of the screen in the traveling portions of the pair of guide frames. Further, a crosspiece guided by a screen running portion of the pair of guide frames is fixed to both ends of the screen in the sliding direction, and a stopper abutting on the crosspiece is attached to any of the screen running portions of each guide frame. And a sliding screen unit. According to this, the screen can be easily slid up and down or left and right by pulling the bar, and when the screen is mounted close to the outer window frame, any bar is prevented from sliding by the stopper. Therefore, collision with the opening / closing handle of the window frame can be avoided.

[0010] In addition, a sliding screen unit, wherein the screen is a sheet such as a net or cloth, is included. According to this, according to the position of the window to be used and the intention of the occupant, it is possible to use a mesh screen that provides ventilation and insect repellent,
Alternatively, it is possible to select a screen of a sheet made of various cloths, resins, or the like that blocks sunlight and protects privacy. Of course, it is also possible to use a screen having a composite structure such as a screen in which the above-mentioned sheet is attached to a part of the net or a screen in which the above-mentioned net is attached to part of the sheet. The screen may be made of any material as long as it has the flexibility to make the U-turn and the strength enough to slide while both sides are guided by each guide frame.

[0011]

Preferred embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an exploded perspective view of a sliding screen unit 1 of the present invention. That is, the unit 1 is a pair of right and left vertical guide frames 2 symmetrical to each other.
And screen U-turn means 1 connected to these upper ends
0, and a ventilation screen 24 made of a net 25 that slides while being sandwiched by the guide frames 2 and 2 on both sides and is turned upside down by the U-turn means 10. As shown in the sectional view of FIG. 2B, each guide frame 2 has a channel-shaped main body 3 and two inner and outer parallel screen running parts 4 separated by a partition piece 5 located inside the main body 3. , 4. Each running portion 4 has a concave groove 6 for guiding a bar 26 of a screen 24 described later on its entrance side by a convex ridge 8 projecting from the middle of the main body 3 and the partition piece 5 at right angles.

As shown in FIG. 1, the U-turn means 10 includes a storage box 11 having a substantially inverted L-shaped cross section, and a pair of cover plates 1 fixed to both longitudinal ends thereof to form a part of the storage box 11.
5, a roller 20 housed in the storage box 11 and supported between the lid plates 15, and a cover 19 for covering the indoor side opening 11a of the storage box 11. The storage box 11 has a vertical piece 12 and a horizontal piece 13, and has a hook piece 14 a having a narrow groove 14 at the indoor side end of the horizontal piece 13. In addition, each cover plate 15 has a U-shaped bearing portion 16 at the center of the inner surface, a lower locking piece 17 on the indoor side, a pair of connecting pieces 18 hanging from the lower side, and a pair of horizontal engaging pieces 15a and 15b. Have. The pair of connecting pieces 18 are fitted into the respective traveling portions 4 of the guide frame 2, and the engaging pieces 15 a, 15 b engage with the through holes 13 a, 12 a of the storage box 11, thereby connecting the storage box 11 and the cover plate 15. Connected to each guide frame 2. In addition, rotating shafts 22 at both ends of the roller 20 are supported by the bearing portions 16, 16.

Further, as shown in FIG.
The projections 19a and 19b projecting from the upper and lower ends of the cover 19 are inserted and locked into the narrow groove 14 and the locking pieces 17 of the left and right lid plates 15 in the opening 11a on the indoor side. The opening 11a is closed. In addition, guide frame 2, storage box 1
1, the cover plate 15 and the cover 19 are made of an extruded material or an injection molded material of a synthetic resin, or an extruded material of an aluminum alloy or a die casting. The roller 20 is formed from a hard resin, a metal tube or a metal plate. Further, the ventilation screen 24 has a rectangular net 25 in which resin fibers or metal wires are woven, and a pair of bars 26 fixed to both ends in the sliding direction. The relationship between the screen 24, the guide frame 2 and the rollers 20 will be described with reference to FIG.

FIG. 2A shows the main unit 1 with the opening window 30 opened.
2 shows a state where the camera is mounted on the indoor side of the vehicle. The opening window 30 has upper and lower window frames 32 and 33 and a shoji 36 located between them, as shown in the figure. It is supported rotatably.
Further, the shoji (paper shroud) 36 is in contact with the tight material 34 of the window frames 32 and 33 at the time of closing as shown in the drawing to maintain airtightness. Furthermore, Shoji 3
A handle 38 for opening / closing is attached to the other end of 6. The guide frames 2 and 2 of the sliding screen unit 1 and the storage box 11 are fixed adjacent to the window frames 32 and 33 on the indoor side. In addition, the roll 20 and the screen 2 for ventilation
4 is inserted in advance from the opening 11a of the storage box 11, and the opening 11a is closed by the cover 19. Each guide frame 2 is partially cut off at its lower end.

Flexible mesh 25 of screen 24 for ventilation
Is wrapped around a semicircular portion on the upper side of the roller 20 pivotally supported in the storage box 11, and slides upside down so as to be able to make a U-turn. Each bar 26 at both ends of the screen 24 is sandwiched between a pair of inner and outer engaging bar members 27 and 28 in a state where both end edges of the net 25 are bent into a substantially V-shaped cross section. Each bar 26
As shown in FIG. 2B, both ends of the guide frame 2 are guided into the inner concave grooves 6 in the respective traveling portions 4. In addition, resin strips 29 having a flexible and highly slippery elliptical cross section are fixed to both side edges of the net body 25 and inserted into the respective traveling portions 4 of the guide frame 2. That is, the net 25 is formed by the ridges 8, 8 in each running portion 4.
It slides while being sandwiched therebetween, and is prevented from shifting in the left-right direction and detaching from the traveling section 4 by the resin strips 29 on both side edges. Note that, instead of the resin strip 29, a strip having a substantially circular cross section made of fiber can be used, and its shape and material are not limited as long as it does not separate from the traveling portion 4.

In the state shown in FIG. 2 (A), the shoji (shoji) 36 of the window 30 is closed, and its handle 38 is connected to the opening K of the window 30.
Of the room. When the bar 26 on the outdoor side of the ventilation screen 24 descends as it is, it collides with the handle 38. This is because this unit 1 was mounted close to the indoor side of the window 30. In order to avoid the above collision, the groove 6 of the traveling portion 4 on the outdoor side in the guide frame 2
A stopper 9 for stopping the lowering of the bar 26 is screwed therein. Accordingly, when the window 30 is closed as shown in FIG. 2A, the handle 38 can be operated from below the bars 26 of the screen 24. Each bar 26 of the screen 24 is located in the middle of the opening K.

Next, as shown in FIG. 3, in order to open the outer casement window 30 and to prevent insects and ventilate, first, the handle 38 is turned outwardly and the sash 36 is opened. Next, the bar 26 on the indoor side of the screen 24 is pushed down.
Then, the net 25 on the outdoor side, which had an inverted U-shaped cross section,
The upper end roller 20 makes a U-turn, and slides downward in the traveling portion 4 on the indoor side of the guide frame 2. As a result, the opening K
Is fully closed by the screen 25 of the screen 24 and
Stops at the upper and lower ends of the opening K. Thereby, the window frame 3
The outside air passes through the mesh 25 from the opening between the screens 2, 33 and the shoji 36, and the insects enter the mesh 25 of the screen 24.
Can be blocked. Moreover, since no bar 26 is located in the middle of the opening K, the aesthetic appearance from the indoor side is excellent, and the occupant can be given a sense of openness. still,
When closing the sash 36 of the window 30, the handle 26 may be drawn after lifting the bar 26 in the reverse order of the above.

As described above, according to the sliding screen unit 1, the number of parts shown in FIG. 1 and the simple structure and sliding mechanism shown in FIGS. Even if it is mounted, it does not hinder the opening and closing operation, and when the window 30 is opened, almost the entire opening K can be shielded by the mesh 25 of the screen 24, thereby achieving ventilation and insect repellency and excellent aesthetics. Can be. Therefore, the conventional screen door 1
Compared to 10, the number of parts can be reduced and the structure can be simplified, and the aesthetic appearance from the room can be enhanced. The net 25 may be replaced with, for example, a cloth sheet 25 to form the light-shielding screen 24. In this case, the opening K can be completely closed by the light-shielding screen 24 with the external window 30 closed. Also, the unit 1 is mounted slightly apart from the window 30 and the handle 38 of the window 30 is mounted.
When the bar 26 and the net 25 on the outdoor side of the screen 24 do not collide with each other, the stopper 9 can be omitted. in this case,
It is also possible to slide substantially the entire net 25 or the sheet 25 of the screen 24 into the traveling portion 4 on the outdoor side of the guide frame 2.

FIG. 4A shows an assembled state of the unit 1. The storage box 11, each cover plate 15, and each guide frame 2 are connected to each other in advance. First, the rollers 20 are sandwiched between the meshes 25 on the screen 24, and the bars 26 are inserted into the respective grooves 6 of the running portion 4 of the guide frames 2. Next, the crosspieces 26 are gradually pulled down, and the net 25 is folded between the guide frames 2, 2 while the resin strips 29 on both side edges of the net 25 are inserted into the respective traveling portions 4. The roller 20 is inserted through the opening 11 a with most of the net 25 attached, and the rotating shafts 22 at both ends are supported by the bearings 16. At this time, each bar 26 is pulled downward, and the net 25
To eliminate slack. Finally, the opening 1 of the storage box 11
1 a is closed with a cover 19. In the case where the net 25 is broken or the like, it is possible to easily perform maintenance such as opening and removing the cover 19 and operating the reverse order to replace the net 25.

FIG. 4B shows a different U-turn means 40. In the following, the same elements and parts as in the above-described embodiment include:
It is assumed that a common code is used. As shown in FIG. 4 (B), a rectangular projection 16 ′ is protruded at the center of the cover plate 15, and a semicircular column 42 having a substantially semi-cylindrical cross section is formed on a pair of opposed projections 16 ′. It will be erected. That is, the semicircular column 42
A pair of ridges 44 hanging from the bottom surface
It is fixed by straddling over 6 '. In this case, the semicircular column 4
2 has at least an upper half semi-circular portion 43 formed of a hard and highly slippery resin or metal profile. This also allows the net 25 or the sheet 25 of the screen 24 to slide while making a U-turn. Further, as shown in FIG. 4C, a semicircular column 46 having an inverted water drop cross section may be used. The semi-circular portion 48 is similar to the semi-circular portion 43, and has a bottom 49 having a V-shaped cross section. In this case, it is necessary to provide a V-shaped receiving portion on the inner surface of the cover plate 15, but it is easier to bridge between the cover plates 15 than the semicircular column 42.

FIG. 4D shows an application of the bearing 16 of the cover plate 15, and the bearing body 1 having a U-shaped bearing 16a.
6b is provided with a hollow portion 16c in which a U-shaped groove 1
6e and the main body 1
The bottom end of the screw 16f is screwed to the bottom of the block 6b, and the tip of the screw 16f is in contact with the bottom of the block 16d. Thus, when the storage box 10, each lid plate 15, and each guide frame 2 are connected, the left and right screws 16f are raised and lowered to maintain the respective rotating shafts 22 at both ends of the roller 20 at the same height. Can be pivotally supported on the U-shaped groove 16e of the block 16d adjusted as described above.

FIG. 4E shows a guide frame 50 of a different form and a screen 56 sliding on the guide frame. Guide frame 50
Are two parallel screen running portions 5 separated by a partition piece 53 located inside a main body 51 having a channel-shaped cross section.
2,52. At the center of the bottom of each running section 52, a pair of low ridges 55 stand upright, and has a narrow running section (screen running section) 54 therebetween. Further, the screen 56 may be, for example, a mesh body 58 in which a large number of wires are fixed horizontally on one surface of the mesh body, or a flexible and strong sheet 58 in which a large number of metal wires are sewn horizontally between a pair of fabrics. And a pair of bars 57 fixed to both ends in the sliding direction. Then, both ends of each bar 57 are inserted into each running part 52 as shown,
In addition, by inserting both side edges of each sheet (net) 58 into the narrow running portion 54, the screen 56 can be slid so as to make a U-turn.

FIG. 5 relates to a case in which the sliding screen unit 1 or its application is applied to a window having a different form from the above. FIG. 5 (A) shows that the glass
4 shows a state in which the sliding screen unit 1 is mounted on the indoor side of the opening K to which the fitting window 60 to which the window 4 is fixed is mounted. In this case, the screen 24 has a light shielding sheet 25.
Is used, and light shielding and privacy protection can be achieved. In this case, the stopper 9 may be omitted.

FIG. 5B shows a state in which the screen unit 1 is mounted on the indoor side of the falling window 65 mounted on the opening K. The folding window 65 has a shoji 68 between a lower frame 66 and an upper frame 67, and a metal fitting 6 such as a hinge between the lower frame 66 and the lower frame 66.
9 allows the shoji 68 to be rotatable outside the room as shown. The unit 1 includes a storage box 11 and a roller 2.
The U-turn means 10 including 0 is mounted at the lower side of the opening K. Thereby, even if the opening / closing handle (not shown) is generally fixed to the upper part of the shoji 68, it does not hinder the operation. In addition, the screen 68 is opened and the screen 24 is ventilated using the net 25,
The shutter 8 can be closed to shield the screen 24 from light using the sheet 25. In this case, it is desirable that at least the bar 26 on the indoor side can be locked in the middle of the guide frame 2 to prevent the net 25 or the like from being loosened.

FIG. 5C shows a state in which the sliding screen unit 1 is mounted on the indoor side of the protruding window 70 mounted on the opening K. The protruding window 70 includes a lower frame 72 and an upper frame 74.
Between the L-shaped part 75 of the upper frame 74 and the shoji 7
The engagement with the inverted U-shaped portion 78 at the upper end of 6 allows the sash (shoji) 76 to protrude to the outside of the room as shown in the figure. The screen unit 1 is mounted with the roller 20 on the upper end side. According to this, since the opening / closing handle (not shown) is generally fixed to the lower part of the shoji (shoji) 76, the operation of the handle is not hindered by the mesh (sheet) 25 of the screen 24. Further, it is also possible to open the sash 76 and allow ventilation with the mesh 25 of the screen 24, or to close the sash 76 and shield the screen 24 using the sheet 25.

FIG. 5D shows a state in which the screen unit 1 is attached to the room side of the louver window 80 attached to the opening K. The louver window 80 includes a plurality of rotatable louvers 84 rotatably and horizontally supported between the left and right vertical frames 82, 82, and a handle 86 for opening and closing each louver 84 provided below one of the vertical frames 82. Having. The unit 1 is mounted with the roller 20 on the upper end side. In this case, the screen 24 is provided at least on the traveling portion 4 on the indoor side of the guide frame 2.
The unit 1 is attached so that the unit 1 does not collide with the handle 86 when sliding. Thereby, each louver 84 can be opened to allow ventilation with the net 25, or each louver 84 can be closed to shield light using the sheet 25. As mentioned above,
The sliding screen unit 1 can perform ventilation or light shielding in the narrow space on the indoor side with respect to the various windows 60, 65, 70 and the louver window 80 shown in FIGS. 5 (A) to 5 (D), and The aesthetic appearance of the room can be improved with a small number of parts and a simple structure.

FIGS. 5E and 5F show a pair of sashes 92 and 94, respectively.
The screen unit 1 'is provided on the indoor side of the opening K to which the sliding window 90 having the following is attached. In the unit 1 ', the guide frame 2 (not shown) is horizontally mounted above and below the opening K, and a pair of rollers 20 are vertically provided together with the storage box 11 on both side ends thereof. The screen 24 has a mesh (sheet) 2 of a size that can completely close the opening K.
5 and a pair of wires W connecting between the bars 26 (not shown) at the upper and lower ends thereof. That is, the net body 25 and each wire W are in an endless state in which the rollers 20 on both sides make a U-turn.

FIG. 5 (E) shows a state in which the opening K is completely closed by a light shielding sheet 25 located on the traveling portion 4 on the outdoor side of the guide frame 2 so as to block the invasion of sunlight and to protect privacy. I have. FIG. 5F shows a state in which the screen 24 for ventilation using the net 25 is slid and the net 25 is slid toward the indoor side of the right side shoji 94 in the drawing. In this case, the sliding door 94 is previously slid to the left as shown by the arrow, and the opening K
Leave the right half open. Of course, the opening K may be completely closed by the net 25 as shown in FIG. It should be noted that the screen unit 1 'can be used as it is even when the left side shoji 92 is a single sliding window fixed to a window frame.
Also, the unit 1 can be used for the sliding window 90,
In this case, a ventilation screen 24 using the net 25 covering only one of the sashes 92 (94) is provided.

It should be noted that the screen unit 1 of the present invention performs the same function as described above and obtains the same effects even if it is mounted on the indoor side such as a double-sided opening window, an up-and-down window, or a sliding window other than those described above. It is also possible. Also, guide frame 2
And the lid plate 15 (storage box 11) do not use the connection piece 18,
The screws may be individually screwed to adjacent window frames, or may be screwed directly to the openings and fixed. Further, instead of the rollers and the like, it is also possible to use a rod member or a pipe having a surface having good slipperiness.

[0030]

According to the sliding screen unit of the present invention described above, it is possible to ventilate or block light in a small space on the indoor side of various windows with a small number of parts and a simple structure. The collision with the handle or the like can be easily prevented, and the aesthetic appearance from the room can be improved. Further, according to the screen unit of the third aspect, it is possible to easily perform maintenance such as mounting of the screen or replacement of a net or a sheet. Further, according to the screen unit of the fourth aspect, it is easy to raise or lower the crosspiece, and it is also possible to easily avoid collision with the handle or the like of the outer window.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing a sliding screen unit of the present invention.

FIG. 2A is a vertical sectional view showing a state in which the unit shown in FIG. 1 is mounted on the indoor side of the casement window, and FIG. 2B is a sectional view taken along the line BB in FIG.

FIG. 3 is a vertical cross-sectional view showing a state in which a sliding door of an outside window in FIG. 2 is opened.

4A is a schematic diagram showing a state of mounting a screen or the like in the unit shown in FIG. 1, and FIGS. 4B to 4E are schematic diagrams showing modified forms of the unit.

5 (A) to 5 (D) are vertical schematic sectional views showing a state where the unit of FIG. 1 is applied to windows of different forms, and FIGS. The horizontal schematic sectional drawing of a window.

FIG. 6 is a vertical sectional view showing a state in which a conventional screen door is attached to the indoor side of the casement window.

[Explanation of symbols]

 1, 1 '... sliding screen unit 2, 50 ... guide frame 4, 52 ... screen running part 9 ... stopper 10, 40 ... screen U-turn means 11 ... storage box 11a Opening 19 Cover 20 Roller 24 Screen 25 Mesh / sheet 26, 57 Beam 42, 46 Semi-circular column 54 Narrow running part (screen running part) K …………… Opening

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Kotaro Nakayama 2-7-23 Kiba, Koto-ku, Tokyo New Nikkei Co., Ltd. (72) Inventor Akihiko Mori 2-7-23 Kiba, Koto-ku, Tokyo (72) Inventor Ryoji Sugino 3-21-16 Toyomanami, Nerima-ku, Tokyo Seiki Sales Co., Ltd.

Claims (5)

[Claims] 1. A slidable ventilation or light-shielding screen unit provided on the indoor side of a window frame, comprising: a pair of guide frames mounted to face an opening of the window frame on the indoor side; Two parallel screen running portions provided on the frame, screen U-turn means provided at at least one end in the longitudinal direction of the pair of guide frames, and sliding while both side edges are sandwiched by the pair of guide frames. And a screen for ventilation or light shielding whose direction is reversed by the U-turn means. 2. The screen U-turn means comprises a rotatable roller having both ends pivotally supported, or a semi-circular column having both ends fixed, a housing for accommodating the roller or the semi-circular column, and a pair of guide frames. The sliding screen unit according to claim 1, further comprising: a storage box to be connected. 3. The sliding screen unit according to claim 2, wherein the storage box has an opening provided on the indoor side and a cover for opening and closing the opening. 4. A stopper which is fixed at both ends of the screen in the sliding direction to be guided by a screen running portion of the pair of guide frames, and which comes into contact with any one of the screen running portions of each guide frame. The sliding screen unit according to any one of claims 1 to 3, further comprising: 5. The sliding screen unit according to claim 1, wherein the screen is a sheet such as a net or a cloth.