JP3560475B2 - Net adjustment devices for screen doors, screen windows, etc. - Google Patents

Description

[0001]
[Industrial applications]
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a net adjusting device for a screen door, a net window, or the like that automatically rewinds and opens a net.
[0002]
[Prior art]
This kind of conventional screen door has a vertical frame on one side of the screen frame as a net storage frame, and as shown in the drawing of the embodiment, a winding shaft 27 as a winding device 7 for the net 5 and an automatic A coil spring 22 for storing a winding force, a center shaft 26 for applying a rotational elastic force to the coil spring 22 with respect to a winding shaft 27, and the like are provided therein. A movable frame 9 is attached to the end of the net 5, and the movable frame 9 is stopped by the other vertical frame 2 against the elastic force of the coil spring 22. However, the tension of the net 5 may be excessive or insufficient, and it is necessary to adjust the tension.
[0003]
When the movable frame 9 is separated from the vertical frame 2, the net 5 is automatically rewound by the force of the coil spring 22. The winding of the net is desirably performed over the entire width by the force of the coil spring. In other words, when the movable frame is released, it is convenient that the net is stored all at once by the return of the coil spring. However, there may be unretained remaining. In this case, return manually or return. Need to be adjusted.
[0004]
In any case, a coil spring adjustment knob 54 is conventionally provided on the upper end surface of the vertical frame 50 as shown in FIG. Since the adjustment knob 54 was rotatably exposed at the center of the end face cap 56 at the upper end of the vertical frame 50, the rotation operation, that is, the adjustment operation was very difficult.
[0005]
Further, the vertical frame 50 is a combination with the inner and outer members 50a and 50b, and the combination is fixed by fixing the end face cap 56 with a screw 57 screwed by a tap. In addition, there was a failure in the winding device, and it was necessary to make adjustments that could not be adjusted with the adjustment knob 54, so that it was very difficult to open the vertical frame 50.
[0006]
[Problems to be solved by the invention]
The present invention has been made in view of the above circumstances, and has as its object to provide a net adjustment device for a screen door, a mesh window, or the like that is easily adjusted so that the entire net is stretched evenly or the entire net is housed.
[0007]
[Means for Solving the Problems]
In order to achieve the above object, the present invention is defined by a left and right vertical frame and an upper and lower frame, wherein one of the frames is used as a net storage frame, and the winding shaft is rotated by the elasticity of a coil spring. In screen doors, screen windows, etc., in which a take-up device is installed and a coil spring adjustment device is installed in the end cap of the net storage frame, the resilient force of the coil spring that winds the net on the indoor side surface of the end cap is increased. A net adjustment device for a screen door, a mesh window, or the like, characterized by exposing an adjustment knob to be turned and a release lever for elasticity.
[0008]
According to the above configuration, since the tension is insufficient when the net is closed, the adjusting knob is turned when the net is strengthened, and the release lever is operated when the net is weakened. In addition, as a result of rewinding the net with the resilience of the coil spring, if there is any unretained residue, to rewind it, turn the adjustment knob to rotate the winding shaft via the coil spring. To release the resiliency of the coil spring, the release lever is operated. The adjustment knob and the release lever for such an operation are exposed on the front surface, so that the operation is easy.
[00 09 ]
BEST MODE FOR CARRYING OUT THE INVENTION
The present invention is applied not only to screens and windows as fittings, but also to screens such as cases for storing articles.
[00 10 ]
In order to automatically rewind the net 5, the coil spring 22 is used. However, if the net 5 can be unwound, the use of a spiral spring or the like does not depart from the gist of the present invention.
[00 11]
【The invention's effect】
As described above, according to the present invention, in a screen door, a screen window, or the like in which the net is automatically rewound and opened by the elasticity of the coil spring, the adjustment knob and the release lever are exposed and operated on the indoor side. Since it is easy to adjust, the whole net can be stretched evenly, and there is an excellent effect that it is easy to adjust so that the entire net is housed.
[00 12 ]
【Example】
Next, an embodiment of the present invention will be described with reference to the drawings.
[00 13 ]
The drawing shows an example implemented as an insect screen, and the insect screen can be called an insect screen window because it is fixed to a window, and one vertical frame is a net storage frame 1. And the other vertical frame 2 and the upper and lower frames 3 and 4, and the net storage frame 1 is equipped with a winding device 7 for the net 5. The movable frame 9 is connected to the end of the net 5, the upper and lower magnets 11 are attached to the vertical frame 2, and the metal magnet receivers 13, 13 that are attracted to the movable frame 9 are attached to the movable frame 9.
[00 14 ]
The net storage frame 1 is composed of a combination of a frame main body 15 and an opening / closing cover 17, each of which is formed in an L-shaped cross section. The frame main body 15 is provided with screw pockets 19, 19, 19 at inner corners and both ends. An opening / closing cover 17 is pivotally supported so as to be openable and closable around a screw pocket 19 at one end thereof, and a storage opening 21 for the net 5 is provided between the two members 15, 17.
[00 15 ]
The winding device 7 includes an adjusting device 10 having a main part housed in the net housing frame 1 and having, at its upper end, an adjusting knob 23 for the coil spring 22 and a release lever 25 for releasing the elasticity of the coil spring 22. Provided. As for the main part, a cylindrical take-up shaft 27 is supported on upper and lower central shafts 26, 26, and upper and lower bearings 29, 29 are fitted to and fixed to the take-up shaft 27.
[00 16]
The coil spring 22 is inserted into the center shaft 26 at the upper end, a hook 30 is provided at the lower end, the lower end is hooked on the lower bearing 29, and the upper end is fixed to the center shaft 26 with a stopper 28. Then, when the movable frame 9 is moved in the direction of the arrow Pa to open the net 5 and the net 5 is rewound, the elasticity is accumulated in the coil spring 22 and is gradually urged in the direction of the arrow Pb for winding the net 5. Then, while the movable frame 9 is attracted to the vertical frame 2 by the magnets 11 and 11, the elasticity is retained, so that the tension of the net 5 is tensioned by the adjustment knob 23 and loosened by the release lever 25. Both can be moderately adjusted.
[00 17]
An end cap 33 is fixed to the upper end of the frame main body 15 of the net storage frame 1 by screws 31, 31, and 31. An upper piece 33a having a connecting piece 35 fitted in the upper frame 3 and a lower piece overlapping the upper piece 33a. 33b, and the adjusting device 10 is mounted in a hollow space therebetween.
[00 18 ]
The adjusting device 10 has a side gear 39 meshed with a center gear 37 to which the center shaft 26 is connected, and the adjustment knob 23 is integrally formed with the side gear 39. When the adjustment knob 23 is turned in the direction of the arrow Pc, the winding shaft 27 rotates in the direction of the arrow Pd for winding the net 5 via the central gear 37, the central shaft 26, and the coil spring 22. Alternatively, the force is stored in the coil spring 22.
[00 19 ]
The adjusting knob 23 is a ratchet gear, and as a means for storing the force thus accumulated in the coil spring 22, a ratchet 43 that is hooked on the ratchet 41 of the adjusting knob 23 is protruded from the release lever 25, and the ratchets 41 and 43 are provided. Is a clearance angle in the rotation direction Pc. Also, to stop getting stuck. The pin spring 45 holds down in that direction.
[00 20 ]
A rotation shaft 47 of the release lever 25 is protruded from the upper piece 33a, and the release lever 25 is bent in a "-" shape so that the tip is exposed to the indoor side beside the adjustment knob 23 beside the adjustment knob 23. Therefore, when the tip of the release lever 25 is operated in the direction of the arrow Pe, the stop of the adjustment knob 23 is released, and the coil spring 22 returns, losing the resilient force. The power can be adjusted at an appropriate stage. When the net 5 is closed, the elasticity of the coil spring 22 can be preserved by losing all of the resilience.
[00 21 ]
Regarding the structure for opening and closing the net 5, guide rails 49, 49 are incorporated in the upper and lower frames 3, 4, and sliders 47, 47 for engaging with the guide rails 49, 49 are attached to upper and lower ends of the movable frame 9. , Which are engaged with the guide rails 49, 49, are arranged on the tapes at the upper and lower ends of the net 5.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view of a screen door according to the present invention.
FIG. 2 is a plan view showing a main part of the present invention by partially cutting out an end face cap at an upper end of a net storage frame in the screen door.
FIG. 3 is a cross-sectional view of the upper end portion of the net storage frame as viewed from the indoor side.
FIG. 4 is a sectional view taken along line AA of FIG. 3;
FIG. 5 is a sectional view taken along line BB of FIG. 4;
FIG. 6 is a cross-sectional view showing a state in which the net is closed at a position viewed from arrows CC in FIG. 1;
FIG. 7 is an explanatory diagram of a conventional example.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Net storage frame 2 Vertical frame 3, 4 Upper and lower frame 5 Net 7 Winding device 10 Adjusting device 15 Frame main body 17 Opening / closing cover 22 Coil spring 23 Adjusting knob 25 Release lever 26 Center shaft 27 Winding shaft 33 End face cap 37 Center gear 39 Side gears 41, 43, ratchets Pb, Pc Rotational direction 45 to increase the spring force of coil spring

Claims (1)

It is framed by left and right vertical frames and upper and lower frames, one of which is used as a net storage frame, it is equipped with a net winding device in which the winding shaft rotates by the elasticity of the coil spring, and it is attached to the end cap of the net storage frame. In screen doors, window windows, etc., equipped with a coil spring adjustment device, an adjustment knob for turning the coil spring that winds the net so as to increase the resilience of the coil spring, and a lever for releasing the resilience, A net adjustment device for a screen door, a screen window, or the like, characterized in that the device is exposed .

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