JP3256103B2 - Screen door - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a screen door that opens and closes a bellows-shaped telescopic insect net supported in an opening frame by expanding and contracting the movable frame parallel to a vertical frame in a horizontal direction.

[0002]

2. Description of the Related Art There has been proposed a screen door in which, when a net is not used, a stretchable net is shortened to one of the right and left sides of an opening surface so that the entire opening surface can be opened. In this case, in order to expand and contract the net, as shown in FIG. 10, one vertical edge of the net 106 is moved along the upper frame 101 and the lower frame 102 of the opening frame 100 by the movable frame 105.
, And the other vertical edge of the net 106 is fixed to the one vertical frame 104 side of the opening frame 100, and the movable frame 105 is moved in parallel with the opening surface of the opening frame 100.

In order to open or close the net 106 smoothly in FIG. 10, it is necessary that the movable frame 105 always smoothly move in a vertical state even if a force is applied at an arbitrary height. . Further, in such a telescopic screen door, it is necessary to hold the net regardless of the position of the movable frame, that is, regardless of the length of the telescopic frame, so as not to bend by the wind.

For this reason, in a conventional screen door, a string 107 penetrating horizontally through each pleat of a screen 106 is provided on a movable frame 105.
Upper frame 101 or lower frame 102 via rollers 108 provided in
And is fixed so that the length of the cord 107 is kept constant regardless of the position of the movable frame 105 at any position. By using such a net holding means, a string of a certain length can be used regardless of where the movable frame is moved, and the net can always be held in a tensioned state. Further, in order to stop the movable frame 105 at a position where the movable frame 105 contacts the other vertical frame 103, that is, at the net closing position, for example, a locking means such as a magnet and an iron plate which are attracted to each other is provided on the opposing surfaces of the vertical frame 103 and the movable frame 105. Provided.

[0005]

However, the above conventional screen door does not move unless a force is applied to the movable frame by applying a hand. Therefore, in particular, when opening the net, the movable frame must be moved in the opening direction in addition to unlocking the locking means by applying a force in the opening direction by putting a hand on the movable frame which is difficult to handle. However, there is a problem that the opening operation of the net is not easy. Further, in the conventional screen door, a string, which is a tension means of the net, extends from one vertical frame to the other vertical frame through the movable frame and the upper frame or the lower frame, and both ends are connected to each vertical frame. Therefore, there is a problem that the movable frame cannot be easily removed at the time of maintenance.

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and in a screen door which opens and closes by expanding and contracting a telescopic net supported in an opening frame by moving a movable frame, a lock of a lock means is provided. By simply removing it, the net can be easily opened, and a string pull-in device for stably pulling a plurality of strings into the vertical frame without having to make the vertical frame particularly large.
An object is to enable easy attachment to a normal vertical frame.

[0007]

In order to achieve the above-mentioned object, the present invention relates to a movable frame in which upper and lower ends are engaged with upper and lower horizontal frames, respectively, and the movable frame is parallel to the left and right vertical frames. The movable frame is supported while being movably supported between the left and right vertical frames, one end of the stretchable net is connected to the movable frame, and the other end of the net is connected to one vertical frame. In a screen door whose net is opened and closed by, one end of a plurality of strings are connected to the movable frame, and each string is horizontally penetrated in the width direction of the net,
Further, the other end of each of the strings is connected to a string pull-in device attached at a required interval in the height direction in the storage groove of the one vertical frame, and the string pull-in device is connected to the one vertical frame. A mounting board fixed in the storage groove of the frame, a first take-up pulley mounted on one end of the mounting board, and an intermediate portion of the mounting board movably mounted in a longitudinal direction of the mounting board. A second take-up pulley, and biasing means for constantly biasing the second take-up pulley in a direction away from the first take-up pulley. The second winding pulley is sequentially wound a plurality of times, and then the other end is fixed to the mounting substrate.

[0008]

[Function] A string whose one end is connected to a movable frame is penetrated through the net,
Since the other end of the string is constantly urged in the pulling-in direction by the string pull-in device built in one vertical frame, the movable frame is urged in the net opening direction. Therefore, when the lock of the locking means is released, the movable frame moves lightly in the opening direction, so that the net can be easily opened. When the second take-up pulley moves in a direction away from the first take-up pulley by the biasing means, a length equal to a distance twice as long as the number of times of winding between the two take-up pulleys is added to the movement amount. It is drawn into the vertical frame. Therefore, since the stroke of the winding pulley and the urging means can be remarkably reduced as compared with the moving distance of the movable frame, a plurality of string pull-in devices can be easily installed in a normally used vertical frame. it can.

[0009]

Next, an embodiment of the present invention will be described with reference to the drawings. 1 is a front view of the screen door with the net partially open, FIG. 2 is a cross-sectional view of the screen door, and FIG. 3 is a cross-sectional view taken along line XX of FIG.

In FIG. 1, A is an opening frame fixed to a frame at an entrance or a window, and an upper frame 1, a lower frame 2, and left and right vertical frames 3 and 4 are connected in a rectangular shape by an ordinary method. . In FIG. 1, the door is omitted, but as shown in FIGS.
A known door B is mounted on a hinge 5A so that the hinge B can rotate around the hinge to the outside and open and close. 5B in FIG. 3 is a door checker.

As shown in FIG. 3, a groove 7 is formed in a portion on the indoor side of the door stop wall 6 provided at the expected width center of the upper frame 1 so as to open downward continuously in the longitudinal direction of the upper frame 1. I have. A movable frame M, which is a component of the screen door C, is provided in the groove 7.
The upper end of J can be movably fitted. In addition, a guide groove 9 is formed by a guide member 9 at a position indoors side of the door stop wall 8 provided at the expected width center of the lower frame 2 so as to be continuous in the longitudinal direction of the lower frame 2 and open outdoors. . The guide member 9 is
Instead of being integrally formed with the lower frame 2, a member formed separately may be connected to the lower frame 2.

As is clear from FIG. 2, the left and right vertical frames 3 and 4 have at least a door stop wall 1 provided at the center of the expected width.
The portion on the indoor side than 0 and 11 is formed symmetrically to the left and right. More specifically, accommodation grooves 12 and 13 are formed in the left and right vertical frames so as to face each other on the indoor side of the door stop walls 10 and 11. As shown in detail about the left vertical frame 3 in FIG. 4, two pairs of projecting edges 14a, 14b;
a, 15b are formed, and fitting grooves 14c, 14d; 15c, 15d are formed between each pair of protruding edges and open to face each other.

Each of the storage grooves 12 and 13 is formed so that a string retraction device D described later can be stored therein and attached thereto. Opposing fitting grooves 14c, 14d; 15c,
As will be described later, 15d is formed so that the fixing portions 30b and 30c in which both vertical edges of the net N are formed thick can be fitted and fixed. Further, the fitting grooves 14c, 14
d; two pairs of protruding edges 14a, 14 forming 15c, 15d
b; one or both of 15a and 15b engages and engages a locking edge 16b formed on the back surface of a shielding member 16 for shielding the opening surfaces of the storage grooves 12 and 13 as described later. It is made to be able to do.

With the above configuration, the screen door of the present embodiment can
And the moving direction of the movable frame MJ can be set to the left or right. That is, the movable frame MJ can be connected to either the left or right side of the net N. The illustrated example is a case where the movable frame MJ is connected to the left side of the net when viewed from the indoor side. In this case, the opening of the storage groove 12 of one vertical frame (the vertical frame close to the movable frame MJ when the net is closed, and the left vertical frame 3 in FIGS.
Is fitted and shielded.

As shown in detail in FIG. 4, the shielding member 16 is formed by integrally forming a pair of locking edges 16b on the back surface of the band plate 16a, and the locking edges 16b are formed in the storage grooves 12 of the vertical frame 3. It is fixed by push-in engagement between one or both of the two pairs of protruding edges 14a, 14b formed on the opening surface. In a groove 16c formed between the band plate 16a and the locking edge 16b, a magnet MG (or a magnetic member) which constitutes a locking means for locking the movable frame MJ when the movable frame MJ is close to the vertical frame 3 is used as an example. It is fixed by a stop.

The movable frame MJ has an upper frame 1 in order to be able to move it smoothly while holding it completely vertically.
A rail groove 17 is formed on the outdoor side of the groove 7 and a hanging member 18 with a roller as shown in FIG. 5 is fixed to the outdoor side surface at the upper end of the movable frame MJ at the hanging piece 18A thereof, One of the upper rollers 19 of the suspending member abuts on the upper side of the rail groove 17, and the lower rollers 20 on both right and left sides abut on the lower side of the rail groove 17 to suspend the movable frame MJ on the upper frame 1. Further, a guide piece 21 as shown in FIG. 6 is fixed to the indoor portion at the lower end of the movable frame MJ, and the guide member 9 formed on the lower frame 2 is slidably fitted on the guide piece 21. Have been combined.

As shown in FIGS. 2 and 4, the movable frame MJ has a substantially H-shaped cross-sectional shape, and has a groove 23 that opens to the one vertical frame 3 side with respect to the web 22; And a net storage groove 24 that opens to the side. Groove 23
Is formed in order to fix one end of the string 25 by penetrating the web 22 through one end of the string 25 described later and then connecting a ball 26 to the end. In order to shield the opening of the groove 23 and improve the appearance, a shielding member 27 is fitted and fixed to the opening of the groove.

As shown in FIG. 4, the shielding member 27 has a pair of ridges 27b and 27c bent in opposite directions on the front and back of a strip 27a having a width substantially equal to that of the web 22.
As shown in FIG. 2, a pair of ridges 27c on the back surface are fixed by being fitted between the distal ends of a pair of vertical walls 28 forming the groove 23. The magnetic plate 29 (or the magnet) is located between the pair of ridges 27b on the surface at positions corresponding to the magnets MG.
Has been fixed. When the net is closed, that is, when the movable frame approaches the vertical frame 3, the magnetic plate 29
The movable frame is sucked by G and locked at the net closing position.

The locking means is not limited to the magnet type using the magnet and the magnetic plate, but may be any other means such as a method in which a hook provided on a movable frame is turned by hand and locked on a lock pin attached to a vertical frame. A structure can be used.

The pleats 30a of the shortened net N can be accommodated in the net accommodating groove 24 of the movable frame MJ in a bellows shape which can be folded along a vertical line. FIG.
As shown in FIG. 5, a pair of fitting grooves 31 is formed at the bottom of the mesh storing groove 24 of the movable frame MJ, that is, at a position close to the web 22, for example. A fixing portion 30b having a thick vertical edge is attached to be detachable.

On the other hand, the fixing portion 30c formed by forming the other vertical edge of the net N to be thick is the storage groove 1 of the other vertical frame 4 of the opening frame A.
3 is fitted in the fitting grooves 15c and 15d on the opening surface so as to be freely detachable.

The other vertical frame (movable frame MJ when the net is opened)
The string 2 which penetrates and supports the net N in the horizontal direction is inserted into the storage groove 13 of the vertical frame which is close to the vertical frame 4) in FIGS.
5 is provided with a string pull-in device D that constantly applies a tensile force in the direction of tension, that is, in the direction of the vertical frame 4.

As shown in FIGS. 7 and 8, the string retracting device D has a mounting substrate 32 on which the string winding means 3 is mounted.
3 and a biasing means 34 for constantly biasing the string in the direction of winding the string onto the string winding means. Mounting board 32
Is formed in a rectangular shape having a U-shaped cross section at the lower opening, and a string winding means 33 is provided at a position almost half of the upper surface thereof.

The string winding means 33 has L-shaped brackets 35, 36 at one end and the center of the mounting substrate 32, with the vertical portions thereof aligned on a common vertical surface.
And take-up pulleys 37 and 38 are rotatably mounted on the vertical portions, respectively.
The string 25 to which A is connected is sequentially wound a plurality of times between the center take-up pulley 38 and the end take-up pulley 37, and finally, the other end 25B of the string 25 is pulled out from the take-up pulley 37 at one end. ing.

The fixed bracket 35 is fixed to the substrate 32. The central movable bracket 36 has a shaft 39 fixed to the horizontal portion of the bracket between one end of the substrate 32 and almost the center. By penetrating the formed long hole 40 and fixing the stopper member 41 to the distal end, the holding member 41 is held so as to be movable toward and away from the fixed bracket 35.

At the other half position of the substrate 32, the movable bracket 36 of the string winding means 33 is fixed to the fixed bracket 35.
A biasing means 34 for biasing in a direction away from the power supply is attached. In the illustrated example, the biasing means 34 connects one end of the coil spring 43 to a fixed piece 42 fixed to the other end of the substrate, and connects the other end to a connecting piece 44 provided on the movable bracket 36. It is configured.

In the natural state, the coil spring 43 of the urging means 34 is shortened and the movable bracket 36 is moved toward the other end of the substrate 32 by the above-described structure of the string retracting device D. The cord 25 wound around the wire is retracted, and its free end 25B is fixed to the fixing bracket 35.
Present nearby. Then, when the free end portion 25B of the string is pulled out, the movable bracket 36 is moved in the direction of the fixed bracket 35 against the coil spring 43, and the coil spring 43 is extended.

A plurality of such cord retraction devices D are
One end of the net N is attached to the bottom of the groove 13 of the vertical frame 4 to which the one end is connected at a required interval in the height direction. As shown in FIG. 2, the string retracting device may be attached to the vertical frame 4 in the storage groove 13 of the vertical frame 4.

However, in the preferred embodiment, as shown in FIG. 9, a fixed length mounting member 45 is provided which extends in the height direction of a vertical frame for mounting a plurality of string pull-in devices D1 to D4, A unit U is configured by attaching a string pull-in device to a predetermined position of each member, and the unit U is housed in the storage groove 13 of the vertical frame 4, and the mounting member 45 is, for example, at the upper end and the lower end, or vertically and centrally. In such a case, it is desirable to fix to the vertical frame 4 with screws or the like.

In the case of unitization in this manner, the positioning of each cord pull-in device with respect to the mounting member 45 can be easily performed at a place away from the vertical frame, and the string pull-in devices can be fixed to the vertical frame when individually attached. The troublesome positioning operation of the position becomes unnecessary. Then, the end of the string 25 of each string pull-in device attached to the vertical frame 4 passes through the vertical edge 30c of one end of the net N, and passes through the pleats 30a of the net N at the other end. Movable frame M penetrated through vertical edge 30b
A ball 26 is fixedly connected to the end of the web 22 through the J web 22.

With the above configuration, the movable frame MJ shown in FIG. 1 or FIG.
When moving to a position close to the left vertical frame 3, the lock means (MG, 29) attached to the vertical frame and the movable frame
Is maintained in the closed state.

When it is desired to release the net, when the locking means is a hook type, the lock by the hook is released. When the locking means is a magnet type, a hand is put on a movable frame to apply a force in the opening direction. In addition, when the magnet is released,
The movable frame MJ is always in the vertical frame 4 by the string 25 of the string pull-in device D.
Since it is urged in the direction, it moves very lightly and the net is opened. That is, the net can be easily opened at the time of unlocking.

When the movable frame MJ is pushed rightward, the movable frame moves lightly in a vertical state by the hanging member 18 and the guide member 9, and the net N, which has blocked the opening surface, is gradually folded. Are stored in the net storage groove 24 of the movable frame.
Finally, the movable frame need only be slightly pressed so as to approach the vertical frame 4.

Further, since the cord retraction device D always keeps the cord 25 in a tensioned state irrespective of the position of the movable frame, even if the door B is in the closed position and is close to the net N, the net can be closed. It can be opened and closed smoothly without contacting the surface.

[0035]

As described above, according to the present invention, a string penetrating the net in the horizontal direction is connected to the movable frame, and the string is always attached in the vertical frame direction by the urging means of the string retraction device. The net can be easily opened simply by releasing the lock of the lock means.

Then, the string pull-in device is attached to the mounting board fixed in the storage groove of one of the vertical frames, the first take-up pulley attached to one end of the mounting board, and the middle of the mounting board. A second take-up pulley movably mounted in the longitudinal direction of the mounting substrate, and biasing means for constantly biasing the second take-up pulley in a direction away from the first take-up pulley. Then, after the string is sequentially wound around the first winding pulley and the second winding pulley a plurality of times, the other end is fixed to the mounting substrate. When the pulley moves in the direction away from the first winding pulley, the string is drawn into the vertical frame by a distance equal to twice the number of turns wound between the two winding pulleys. Therefore, it is not necessary to use a winding pulley having a large winding diameter, and the stroke between the winding pulley and the urging means can be significantly reduced as compared with the moving distance of the operating frame. A plurality of string pull-in devices can be easily installed in the inside.

[Brief description of the drawings]

FIG. 1 is a front view in a state where a net is partially opened.

FIG. 2 is a cross-sectional view.

FIG. 3 is a sectional view taken along line XX of FIG. 1;

FIG. 4 is a cross-sectional view of a disassembled state of a part of a vertical frame and a movable frame.

FIG. 5 is a front view of the hanging means of the movable frame.

FIG. 6 is a side view of the guide member.

FIG. 7 is a front view of the cord retracting device.

FIG. 8 is a side view showing a cross section of a substrate of the device.

FIG. 9 is a side view showing another attachment mode of the string retracting device.

FIG. 10 is a front view showing a conventional telescopic screen door.

[Explanation of symbols]

 Reference Signs List A frame 1 upper frame 2 lower frame 3, 4 vertical frame B door C screen door MJ movable frame N telescopic net D string pull-in device 33 string winding means 34 urging means 32 substrate 37, 38 pulley 43 coil spring

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) E06B 9/52-9/54

Claims (1)

(57) [Claims] An upper frame and a lower frame of a movable frame are respectively engaged with an upper frame and a lower frame of an opening frame, and the movable frame is movable between left and right vertical frames while being kept parallel to the left and right vertical frames. A mesh door that supports and expands and contracts one end of a stretchable net to the movable frame, and connects the other end of the net to one vertical frame to open and close the net by moving the movable frame. Attach one end of multiple strings to
Each string is horizontally penetrated in the width direction of the mesh, and the other end of each string is connected to a string pull-in device mounted at a required interval in the height direction in the storage groove of the one vertical frame. The string pull-in device includes: a mounting board fixed in the storage groove of the one vertical frame; a first winding pulley mounted on one end of the mounting board; A second take-up pulley movably attached to the portion in the longitudinal direction of the mounting substrate, and biasing means for constantly biasing the second take-up pulley in a direction away from the first take-up pulley. The screen is characterized in that the string is sequentially wound around a first winding pulley and a second winding pulley a plurality of times, and then the other end is fixed to the mounting board.