JPH0853986A - Screen door - Google Patents

Abstract

PURPOSE:To freely set and change opening-closing operation to the left and right. CONSTITUTION:The projecting edges 11a, 11b, 13a and 13b to form fitting grooves 11c, 11d, 13c and 13d oppositely opening in the indoor outward direction, are arranged on left and right vertical frames 3 and 4 of an opening frame A, and are formed in a bilaterally symmetrical shape. One vertical edge part of a screen can be fitted and fixed to the fitting grooves. Housing grooves 11 and 13 oppositely opening left and right are formed on the left and right vertical frames 3 and 4 of the opening frame A, and the projecting edges 11a, 11b, 13a and 13b to form the fitting grooves are arranged in the vicinity of opening surfaces of the housing grooves, and are formed in a bilaterally symmetrical shape. Energizing members are made to be fitted and installed in the housing grooves 11 and 13. The projecting edges can lock the locking edge formed on a back face of a shielding member 14 to shield the opening surfaces of the housing grooves.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is a screen door (expandable / contractible) which is attached to a building entrance, a window, etc., and a bellows-like insect net (hereinafter simply referred to as "net") is expanded / contracted in a direction parallel to the opening surface. Screen door).

[0002]

2. Description of the Related Art An expanding screen door has been proposed in which the mesh is shortened to either the right or left side of the opening so that the entire opening can be opened when the mesh is not used. In this case, in order to expand and contract the net, as shown in FIG.
One vertical edge of the net 106 is fixed to the movable vertical frame 105 that is moved along the upper frame 101 and the lower frame 102 of the opening frame 100, and the other vertical edge of the net 106 is set to one vertical side of the opening frame 100. The movable vertical frame 105 is fixed to the side of the frame 104, and the movable vertical frame 105 is attached to the opening frame
The structure is such that it is moved parallel to the opening plane of 00.

By the way, in order to smoothly open or close the net 106 in FIG. 10, it is necessary that the movable vertical frame 105 always moves smoothly in a vertical state even if a force is applied at an arbitrary height thereof. Is. Also, in such an expandable screen door, regardless of the position of the movable vertical frame,
That is, it is necessary to hold the net so that it will not be bent by the wind regardless of the length of expansion and contraction of the net.

Therefore, in the conventional screen door, the string 107 penetrating each pleat of the net 106 is guided to the ends of the upper frame 101 and the lower frame 102 through the rollers 108 provided on the movable vertical frame 105, and fixed. It is configured such that the length of the cord 107 can be kept constant regardless of the position of the movable vertical frame 105.

[0005]

Even in the case of such an expandable screen door, for example, at the entrance, depending on the installation position of the hinge of the door, and at the window, the position of the equipment item on the outdoor side or the indoor side, etc. According to the opening / closing direction of the screen door, that is,
It is desired that the position of the movable vertical frame with respect to the net can be arbitrarily set on either side.

However, in the conventional screen door, the roller 10
8 is arranged inside the opening frame 100 and the movable vertical frame 105, and the string 107 is provided on the opening frame 100 and the movable vertical frame 10.
5, and the opening frame 1 such as being placed through the net 106
00, the movable vertical frame 105, the net 106, and the string 107 are complicatedly connected to each other. Therefore, in order to change the opening / closing direction of the screen door, the movable vertical frame 105, the screen 106, and the string 107 are attached to the opening frame 100,
There is a problem that the left-right hand is not good because it cannot be easily removed and operated. The present invention has been made in view of the above points, and an object of the present invention is to make it possible to easily set a right-left hand in an expandable screen door or to easily change a left-right hand.

[0007]

According to the screen door of the present invention, one longitudinal edge of a folding and expanding mesh is fixed to a movable vertical frame which is moved along the upper and lower ends of the upper and lower frames of the opening frame. Then, the other vertical edge portion of the net is fixed to one vertical frame of the opening frame, and the net is held between the movable vertical frame and the vertical frame so as to extend and contract in parallel with the opening surface of the opening frame. In the screen door, the indoor side portions of the left and right vertical frames of the opening frame are opened facing each other in the indoor and outdoor directions, and provided with a projecting edge forming a fitting groove communicating with the indoor side, The fitting groove is characterized in that one longitudinal edge of the mesh is fitted and fixed to the fitting groove.

Further, in the screen door of the present invention, one of the vertical edges of the foldable and expandable net is fixed to a movable vertical frame whose upper and lower ends are moved along the upper and lower frames of the opening frame. A screen door having the other vertical edge portion fixed to one vertical frame of the opening frame and holding the net between the movable vertical frame and the vertical frame so as to extend and contract in parallel with the opening surface of the opening frame. In the indoor side portions of the left and right vertical frames of the opening frame, there are provided storage grooves that open in the left and right vertical frames so as to face each other. A projecting edge that forms a fitting groove that opens is provided, and the fitting groove and the storage groove communicate with the indoor side, and the storage groove constantly applies tension to the string penetrated by the net. It is for accommodating and mounting a biasing member, and the fitting groove fits one longitudinal edge of the mesh into the fitting groove. It is for the constant, said flange is characterized in that is capable of engaging the locking edge formed on the rear surface of the shielding member for shielding the opening surface of the receiving groove.

[0009]

The left and right vertical frames are formed symmetrically at least on the indoor side, and one of the vertical edges of the mesh is fitted and fixed in any of the fitting grooves of the left and right vertical frames of the opening frame. can do. One vertical edge of the net is fitted and fixed in the fitting groove of the vertical frame, the other vertical edge of the net is coupled to the winding shaft provided on the movable vertical frame, and the movable vertical frame is connected to the opening frame. When it is provided so as to be movable along the upper frame and the lower frame, it is possible to configure a screen door in which the screen is opened and closed depending on the moving direction of the movable vertical frame. The movable vertical frame is
It can be installed on either side of the net.

At least the indoor side portions of the left and right vertical frames are formed symmetrically, and the urging member can be accommodated and mounted in any of the storage grooves of the left and right vertical frames of the opening frame. Further, one of the vertical edges of the net can be fitted and fixed in the fitting groove of any of the storage grooves. Further, a locking edge formed on the back surface of the shielding member that shields the opening surface of the storage groove can be engaged with the projecting edge that forms each fitting groove to shield the opening surface. Therefore, the biasing member is housed and mounted in the storage groove of one of the vertical frames, and one vertical edge portion of the net is fitted and fixed in the fitting groove of the storage groove of the vertical frame.
The opening surface of the storage groove of the other vertical frame is shielded with a shielding member, one end of which penetrates the string connected to the winding shaft of the movable vertical frame through the net, and the other end of the string serves as the biasing member. In the case where the movable vertical frame is combined and provided so as to be movable along the upper frame and the lower frame of the opening frame,
It is possible to configure a screen door in which the screen is opened and closed depending on the moving direction of the movable vertical frame. The movable vertical frame can be installed on either side of the net. Since both the storage groove and the fitting groove communicate with the indoor side at a common position, the biasing member and the end edge of the mesh can be easily attached and fixed to the vertical frame.
Therefore, it is possible to easily change the left / right hand.

[0011]

Next, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a front view of the entrance to which the screen door according to the embodiment of the present invention is attached as seen from the indoor side, FIG. 2 is a vertical cross-sectional view taken along line XX of FIG. 1, and FIG. Plan, Figure 4
Is a cross-sectional view of the same with the screen door opened, FIG. 5 is a vertical cross-sectional view showing the configuration of the biasing unit, FIG. 6 is a vertical cross-sectional view showing a modification of the biasing unit, and FIG. FIG. 8 is an exploded perspective view of a main part showing a connecting structure to a frame, and FIG. 8 is a side view mainly showing a slide rail.

In FIG. 1, A is an opening frame fixed to the body at the entrance or window, and the upper frame 1, the lower frame 2, and the left and right vertical frames 3, 4 are connected in a rectangular shape by a usual method. There is. In FIG. 1, the door is omitted. As shown in FIGS. 2 to 4, in the portion on the outdoor side with respect to the center of the expected width of the opening frame A,
A known door B is attached by a hinge 5 so that it can be opened and closed by rotating around the hinge to the outside.

A groove 7 is formed in the interior side of the door contact wall 6 provided in the center of the width of the upper frame 1 so as to open downward in the longitudinal direction of the upper frame 1. The upper end of the movable vertical frame MJ, which is a component of the screen door C, can be movably fitted into the groove 7. In addition, a guide groove (guide member) that is open in the outdoor direction continuously in the longitudinal direction of the lower frame 2 at a portion closer to the indoor side than the door contact wall 8 provided in the center of the estimated width of the lower frame 2.
9 is formed. Instead of integrally forming the guide member on the lower frame, a separately molded member may be joined to the lower frame 2.

As is clear from FIGS. 3 and 4, the left and right vertical frames 3 and 4 are formed symmetrically at least on the indoor side of the door contact walls 10 and 12 provided at the center of the estimated width. There is. Since the illustrated example is for an entrance opening frame, the entire vertical frame is formed symmetrically. More specifically, the housing groove 11, which opens in the left and right vertical frames so as to face each other, in the indoor side portion of the door contact walls 10 and 12,
13 are formed, and two pairs of projecting edges 11a, 11b; 13a, 1 that face each other in the indoor and outdoor directions are formed in the vicinity of the opening surface of each storage groove.
3b is formed, and fitting grooves 11c, 11d; 13c, 13d that open to face each other are formed between the protruding edges of each pair.

Each of the storage grooves 11 and 13 is made so that a biasing unit 15, which is a component of a tensioning means to be described later, can be accommodated and mounted therein. As will be described later, in the facing fitting grooves 11c, 11d; 13c, 13d, as will be described later, a fixing portion 37 in which both vertical edges of the net are formed thick
It is made so that a and 37b can be fitted and fixed.
Further, one or both of the two pairs of projecting edges 11a, 11b; 13a, 13b forming the fitting grooves 11c, 11d; 13c, 13d are, as will be described later, storage grooves 11, 13.
The engaging edge 14b formed on the back surface of the shielding member 14 for shielding the opening surface of the is fitted and locked.

With the above-described structure, the screen door of this embodiment can set the opening / closing direction of the screen and the moving direction of the movable vertical frame MJ either to the left or right. That is, the movable vertical frame MJ can be connected to either the left or right side of the net 37. Now, an example in which the movable vertical frame MJ is connected to the left side of the net will be described. In this case, the opening of the storage groove 11 of one of the vertical frames (the vertical frame close to the movable vertical frame MJ when the screen door is closed, the left vertical frame 3 in FIGS. 1, 3 and 4) is shielded by the shielding member 14. ing.

As shown in detail in FIG. 5, the shielding member 14 is formed by integrally molding a pair of locking edges 14b on the back surface of the strip plate 14a and is continuous in the longitudinal direction at the center of the surface of the strip plate 14a. In the groove 14c formed as described above, the magnet MG is fixed by the push-fit lock at a position corresponding to the magnetic plate 30 attached to the shield member 29 of the MJ of the movable vertical frame, which will be described later. A soft member (not shown) such as mohair extending to the surface of the magnet MG is fixed to the portion by fitting. The shielding member 14 is
As shown in FIG. 5, the locking edge 14 b is formed in the storage groove 11 of the vertical frame 3.
It is fixed by press-fitting engagement between one or both of the two pairs of projecting edges 11a and 11b formed on the opening surface of the.

The storage groove 13 of the other vertical frame (vertical frame close to the movable vertical frame MJ when the screen door is opened, the vertical vertical frame 4 in FIGS. 1, 3 and 4) is a bellows-like foldable net 37. An urging unit 15 is fixed that constitutes a tensioning means that constantly applies an urging force in a tensioning direction to a string 38 that horizontally penetrates and supports. As shown in FIG. 6, the urging unit 15 includes a case 15a, a Corui spring 15b as an urging member whose one end is fixed in the case, and a coil spring 1.
Case 1 in which the string 38 joined to the other end of 5b is turned halfway
5a and a roller 15c pivotally attached to the case 1
5a is provided with a mounting portion 15e having a hole 15d for screwing into the storage groove 13 of the vertical frame 4. Therefore, the biasing unit 15 is attached to the opening frame A so as to be easily removable.

The roller 15c converts the moving direction of the string 38 into a substantially perpendicular direction (horizontal direction and vertical direction) in order to connect the string 38 to the coil spring 15b arranged so that the biasing direction is substantially vertical. It is for doing. By configuring the biasing unit 15 as described above, it is possible to arrange the biasing unit 15 so that the longitudinal direction of the biasing unit 15 is the vertical direction, that is, the longitudinal direction of the vertical frame 4, so that the biasing unit 15 is aligned with the vertical frame 4. There is an advantage that the space of the vertical frame can be effectively used when installing in.

When a sufficient space can be secured in the vertical frame 4 in the horizontal direction, as shown in FIG. 7, the roller 15c is omitted from the urging unit 15 and the coil spring 15b is arranged in the horizontal direction. It is also possible to configure the biasing unit 15A described above. In this case,
The longitudinal direction of the urging unit 15A is horizontal.

Fitting grooves 6a and 6b are formed in the upper and lower end portions of the indoor side surface of the door stop wall 6 of the upper frame 1 so as to face each other, and a slide rail 16 is attached to the fitting grooves. There is. As shown in FIGS. 8 and 9, the slide rail 16 is provided with concave small ball rolling surfaces 17a, 17 at both upper and lower ends.
and a rail 17 extending in the longitudinal direction of the upper frame 1 of the opening frame, and concave small ball rolling surfaces 18a and 18b facing the small ball rolling surface of the rail at both upper and lower ends. A short slider 18 and a retainer 20 for rotatably holding a plurality of small balls 19a, 19b such as a plurality of steel balls rolling on the small ball rolling surfaces of the rail members so as to be spaced apart in the longitudinal direction of each rail member. It consists of

The slide rail 16 is attached to the upper frame 1 in advance, and after the opening frame A is assembled and attached to the building, the slider 18 of the slide rail 16 is connected to the slider 18 of the movable vertical frame MJ of the screen door C via the connecting metal fitting 21. The upper end of the movable vertical frame MJ is suspended by connecting the upper ends.

Since the slider 18 is fitted to the retainer 20 with a required length, the movable vertical frame MJ is laterally aligned both in the direction parallel to the opening surface and in the direction perpendicular to the opening surface. It is possible to move very lightly in the longitudinal direction of the upper frame 1 without shaking, that is, while maintaining a completely vertical state.

The upper end of the connecting fitting 21 is the slider 1.
8 is fixed in advance by a screw 22a and the lower end is fixed to the outdoor surface of the movable vertical frame MJ by a screw 22b, so that the movable vertical frame MJ can be easily attached to and detached from the upper frame 1. it can.

At the lower end of the movable vertical frame MJ, as shown in the lower part of FIG. 7, a plastic lower member 23 having at least a part of its cross-sectional shape equal to that of the movable vertical frame MJ is formed on the upper surface thereof. The pair of engaging projections 24 are pushed into the lower end of the movable vertical frame MJ and are integrally connected. An engaging piece 25 is fixed to the indoor side surface of the lower member 23 with a screw 22c. This engaging piece 25 is provided in a state where the engaging portion 25a is fitted in the guide groove 9 of the lower frame 2 in advance when the opening frame A is assembled, and when the movable vertical frame MJ is attached to the opening frame A. The engaging piece 25 is screwed to the lower member 23.

In this way, the movable vertical frame MJ can move in the longitudinal direction of the upper frame 1 without the upper end of the movable vertical frame MJ rolling by the slide rail 16, and the lower end of the movable vertical frame MJ rolls by the engaging piece 25. It is possible to move in the longitudinal direction of the lower frame 2 without doing so. That is, the movable vertical frame always moves in the left-right direction in FIG. 1 while maintaining the vertical state even when a force in the opening / closing direction is applied at an arbitrary height thereof.

If the storage groove 13 is not provided on the back side of the vertical frame 4, the movable vertical frame M is provided when the slider 18 of the slide rail has a required length for ensuring the movement stability.
When J is moved to the terminal end in the screen door opening direction, that is, between the vertical frames 4, the tip of the slider comes into contact with the vertical frame first and is stopped, so that the movable vertical frame connected to the slider is moved. It may not move until it abuts the vertical frame 4. However, since the storage groove 13 is provided on the back side of the vertical frame 4, the slider 18 can move to the upper end portion of the biasing unit storage groove 13, so that the movable vertical frame can move until it abuts on the vertical frame 4. Therefore, there is an advantage that the opening amount of the opening surface can be maximized.

As shown in FIGS. 3 and 4, the movable vertical frame MJ is formed in a substantially H-shaped cross section, and the take-up shaft housing groove 2 is opened to the vertical frame 3 side with respect to the central web 26.
7, and also has a net storage groove 28 that opens on the opposite side of the web 26 from the winding shaft storage groove 27. The open surface of the winding shaft storage groove 27 is shielded by a shield member 29 fitted and fixed to the movable vertical frame.

As shown in FIG. 5, the shielding member 29 has a pair of convex strips 29b and 29c bent in opposite directions on the front and back sides of a strip plate 29a having a width substantially equal to that of the web 26.
5 are integrally provided, and as shown in FIG. 5, the pair of convex strips 29c on the back surface are fixed by fitting between the front end portions of the pair of vertical walls forming the winding shaft storage groove 27. . The magnetic plate 30 is fixed at a plurality of predetermined heights between the pair of ridges 29b on the surface.

Inside the winding shaft accommodating groove 27, a winding shaft 31 continuous from the upper end to the lower end is rotatably held. The upper end is rotatably supported by a bearing 32 provided inside the upper end of the movable vertical frame, and the lower end is rotatably supported by a support shaft 33 provided on the upper surface of the lower member 23. The upper end of the winding shaft 31 is projected slightly above the upper end of the movable vertical frame, and the pinion 34 is fixed to the projected part, and the pinion 34 serves as the groove 7 of the upper frame 1. It is meshed with a rack 35 attached to the inner surface of the indoor-side hanging wall 7a forming the above, and extending in the longitudinal direction of the upper frame 1. Therefore, when the movable vertical frame MJ is moved in a direction parallel to the opening surface of the opening frame A, the winding shaft 31 is rotated in the winding direction or the rewinding direction.

The bottom of the mesh housing groove 28 of the movable vertical frame MJ,
That is, on the winding shaft 31 side, as an example, a pair of fitting grooves 36 are formed, and one longitudinal edge of a net 37 formed in a bellows shape so as to be foldable into these fitting grooves has a thick wall. The fixing portion 37a formed in the above can be removably attached. On the other hand, the fixed portion 37b formed by thickening the other end edge of the net 37 is provided on the other vertical frame 4 of the opening frame A.
It can be removably attached to the fitting grooves 13c and 13d which are open in the opening surface of the housing groove 13 so as to face the indoor and outdoor directions. In the mesh housing groove 28 of the movable vertical frame MJ, each pleat 37c of the mesh which is folded and shortened can be housed.

The winding shaft 31 is formed with an annular recess 31a at positions spaced in the height direction, and a small hole penetrating the winding shaft in the recess has a plastic rope or a wire rope. Penetrate one end of the string 38 of
One end of the string 36 is joined to the winding shaft 31 by connecting a retaining device to the tip thereof. Recess 3 of winding shaft 31
1a is for guiding the cord when winding the cord and for reducing the maximum winding diameter as much as possible. However, the spool may be fixed to the winding portion of the string.

Each of the strings 38 has a fixed portion 37a of the net 37,
A small hole formed in the fixed portion 37b and each pleat 37c therebetween is horizontally penetrated, and the other end of the cord is connected to the spring 15b of the biasing unit 15 attached to the storage groove 13 of the vertical frame 4. It is attached to the free end. The string 38 has one end wound around the winding shaft 31 and the other end coupled to the urging unit 15. Therefore, the string 38 holds the net 37 in a state where the string 38 is maintained in a tensioned state by the urging force of the coil spring 15b of the urging unit 15 always acting in the tensioning direction.

Next, the opening / closing operation of the screen door having the above structure will be described. Since the upper end of the movable vertical frame MJ is suspended and moved by the slide rail 16 on the upper frame 1, the movable vertical frame MJ can be moved either in a direction parallel to the opening surface of the opening frame A or in a direction perpendicular to the opening surface. , Swinging is effectively prevented. Further, the lower end portion of the movable vertical frame MJ is prevented by the engaging piece 25 from swinging in the direction parallel to the opening surface of the opening frame and in the direction perpendicular thereto. Therefore, the movable vertical frame MJ always maintains the vertical state and smoothly moves in the direction parallel to the opening surface even when an opening / closing force is applied at an arbitrary height thereof.

When the movable vertical frame MJ is moved to the left in FIG. 1, the net 37 is extended and the screen door is closed, as shown in FIG. When the shielding member 29 approaches the shielding member 14 of the vertical frame 3, the magnetic plate 30 is attracted to the magnet MG, and thus fixed in the closed state. When the movable vertical frame MJ is moved to the right, the mesh 37 is shortened and the screen door is opened, as shown in FIG. Therefore, the door B can be opened and the entrance can be freely passed.

Then, as the movable vertical frame MJ moves, the take-up shaft 31 is rotated by the action of the pinion 34 and the rack 35. In FIG. 3, when the movable vertical frame MJ is moved to the right, the winding shaft 31 is rotated in the winding direction in accordance with the amount of movement to wind the string 38. Therefore, wherever the movable vertical frame MJ exists, the string 38 always maintains the tensioned state and prevents the net from loosening. On the other hand, the movable vertical frame MJ in FIG.
When moving to the left, similarly, the winding shaft 31 is reversely rotated according to the movement amount, and the string 38 is rewound from the winding shaft. Since the other end of the cord is connected to the spring 15b, even if there is a slight difference between the movement amount of the movable vertical frame MJ and the rotation amount of the winding shaft 31, the cord always has the required tension. Holds the state and prevents the net from loosening. Furthermore, movable vertical frame MJ
Is smoothly moved by the slide rail 16 while keeping it completely vertical, and therefore the meshed state of the pinion 34 and the rack 35 is not broken, so that the take-up shaft 31 moves according to the movement of the movable vertical frame MJ. Since it is surely rotated, only a part of the string is not loosened.

When the area covered by the net on the opening surface of the opening frame is different from each other, nets having different widths are used. Therefore, the width in the shortened state (distance between the left and right ends) is also different. A movable vertical frame in which the depth of the net housing groove 33 is different according to the width of the net to be used is used.

When the slide rail 16 and the engaging piece 25 are detachably connected to the movable vertical frame MJ by screwing or the like as in the above embodiment, the slide rail 16 and the engaging piece 25 are provided. There is an advantage that any movable vertical frame having different net storage groove depths can be attached in the same manner by always using the same one.

Next, the case of changing the right and left hand of the screen door will be described. The biasing unit 15 is shown in FIGS.
At the left side, the net 3 is attached to the storage groove 11 of the left vertical frame.
One of the vertical edges of 7 is a fitting groove 11c on the left vertical frame,
It is fitted and fixed to 11d. Then, the string 38 having one end coupled to the free end of the coil spring 15b of the urging unit,
The urging unit is rotated halfway around the rollers 15c to penetrate each pleat of the net, and the other end of the net storage groove 28 of the movable vertical frame MJ.
After passing through the fixing part at the other end of the net fixed to the bottom of the, the holes formed in the web of the movable vertical frame provided in the opposite direction to those shown in FIGS. , The other end of the string is connected to the winding shaft 31. And the vertical frame 4 on the right side
The storage groove 13 is shielded by reversing the front and back of the same shielding member as the shielding member 14 and fitting and locking.

As described above, since the storage groove and the fitting groove are provided so as to communicate with the indoor side on both the left and right sides, one side of the urging unit and the mesh is attached to the vertical frame. Since it can be easily replaced, the right-left hand of the screen door can be easily set or changed.

Although the above-mentioned embodiment is applied to the entrance, the present invention can be applied to the window as well, and exhibits the same effect.

Since the urging unit 15 is housed and mounted in the housing groove 11 or 13 provided on the indoor side portions of the vertical frames 3 and 4, it cannot be seen from the indoor side, so that it has a good appearance. Also,
The storage groove of the vertical frame in which the biasing unit is not stored may be fitted with the projecting edge 29b of the blocking member 29 of the movable vertical frame instead of being blocked by the blocking member 14.
In that case, the magnet M is placed between the projecting edges 11a and 11b.
If equipped with G, the screen door can be locked in a closed state.

In the above embodiment, in order to facilitate the attachment of the urging member, the urging unit and the lower member may separately attach the urging member to the storage groove.

In the vertical frame, as shown in FIG. 10, the pair of projecting edges 11a, 11 are provided without the storage groove.
b; 13a, 13b are formed and fitting grooves 11c, 11d; 13c, 13d communicating with the indoor side are provided, and one vertical edge portion 37b of the net is provided in the fitting groove of either the left or right vertical frame 4 thereof.
Is fitted and fixed, and in the fitting groove of the other vertical frame 3, the shielding member 1
4 may be attached to block the light. In this embodiment, the biasing member 15b is attached to the back side of the vertical frame 4.

[0045]

As described above in detail, according to the screen door of the present invention, the inner edges of the left and right vertical frames are provided with the projecting edges that form the fitting grooves that open in the indoor and outdoor directions. Since it has a symmetrical shape and one vertical edge of the net can be fitted and fixed in the fitting groove of one vertical frame, one vertical edge of the net can be used as one vertical frame of the opening frame. While fixing and fixing the other vertical edge of the net to the movable vertical frame, one end of the string is connected to the winding shaft attached to the movable vertical frame, the string is pierced through the net, and the other end is By connecting to the urging member provided on the vertical frame, it is possible to easily set or easily change the right-left hand of the expandable screen door that moves the movable vertical frame to expand and contract the net.

In addition, in the indoor side portions of the left and right vertical frames, storage grooves that open in the left and right vertical frames so as to face each other, and fittings that open in the indoor and outdoor directions facing each other in the vicinity of the opening surfaces of the storage grooves. Protrusions that form a groove are provided so as to be symmetrical, and the storage groove and the fitting groove are communicated with the indoor side, and a biasing member is housed and attached to the storage groove of one vertical frame, and the fitting groove of the same vertical frame is installed. If one of the vertical edges of the net is fitted and fixed and the storage groove of the other vertical frame can be shielded by a shielding member, one of the vertical edges of the net should be It is fixed to the frame, the other vertical edge of the net is fixed to the movable vertical frame,
By connecting one end of the cord to the winding shaft attached to the movable vertical frame, penetrating the cord into the mesh and coupling the other end to the biasing member, the movable vertical frame is moved to expand and contract the mesh. The right-left hand of the expandable screen door thus configured can be easily set or easily changed. In particular, since the storage groove and the fitting groove are communicated with the indoor side, it is possible to easily attach and replace the biasing member and the vertical edge portion of the mesh to the vertical frame, so that the right and left hand of the screen door can be easily changed. .

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of a screen door according to the present invention,
It shows a state seen from the indoor side of the entrance with the screen door attached.

FIG. 2 is a vertical sectional view taken along line XX of FIG.

FIG. 3 is a transverse cross-sectional view with a screen door closed.

FIG. 4 is a cross-sectional view showing a state in which a screen door is opened.

FIG. 5 is a transverse cross-sectional view of one vertical frame and the movable vertical frame of the opening frame in a disassembled state.

FIG. 6 is a vertical cross-sectional view showing the configuration of a biasing unit.

FIG. 7 is a vertical cross-sectional view showing a modified example of the configuration of the biasing unit.

FIG. 8 is an exploded perspective view of essential parts showing a connecting structure of a movable vertical frame with respect to an opening frame.

FIG. 9 is a side view mainly showing a slide rail.

FIG. 10 is a cross-sectional view showing another embodiment.

FIG. 11 is a front view showing an example of a conventional expandable screen door.

[Explanation of symbols]

 A Opening frame 1 Upper frame 2 Lower frame 3,4 Vertical frame 11,13 Storage groove 11a, 11b; 13a, 13b Projection edge 11c, 11d; 13c, 13d Fitting groove 9 Guide member C Mesh door MJ Movable vertical frame 14 Blocking Member 14b Locking edge 15 Energizing unit (tensioning means) 15a Case 15b Coil spring (urging member) 15c Roller 16 Slide rail 25 Engaging piece 31 Winding shaft 37 Net 37a, 37b Vertical edge 38 String

Claims (2)

[Claims] 1. A vertical edge portion of a foldable and stretchable mesh is set upwards,
The lower end is fixed to a movable vertical frame that is moved along the upper and lower frames of the opening frame, and the other vertical edge of the mesh is fixed to one vertical frame of the opening frame, and the movable vertical frame and the In a screen door that holds the mesh between the vertical frames in an expandable and contractible manner in parallel with the opening surface of the opening frame, the indoor side portions of the left and right vertical frames of the opening frame are opened facing each other indoors and outdoors. And, there is provided a projecting edge that forms a fitting groove that communicates with the indoor side, and the fitting groove is for fitting and fixing one vertical edge portion of the net to this. The characteristic screen door. 2. A vertical edge portion of a foldable and stretchable mesh is set upwards,
The lower end is fixed to a movable vertical frame that is moved along the upper and lower frames of the opening frame, and the other vertical edge of the mesh is fixed to one vertical frame of the opening frame, and the movable vertical frame and the In a screen door that holds the net between the vertical frames in parallel with the opening surface of the opening frame so that it can expand and contract, the left and right vertical frames of the opening frame face each other on the indoor side and face each other. The storage groove is provided, and a projection edge is formed in the vicinity of the opening surface of each of the storage grooves to form a fitting groove that opens in an indoor / outdoor direction, and the fitting groove and the storage groove are It communicates with the indoor side, the storage groove is for accommodating and attaching a biasing member that constantly applies tension to the string that has been penetrated by the net, and the fitting groove is provided with the fitting groove of the net. It is for fitting and fixing one vertical edge portion, and the projecting edge shields the opening surface of the storage groove. It is capable of engaging a locking edge formed on the rear surface of 蔽部 material, screen doors, characterized in.