JP3617648B2 - Net adjustment device for screen doors, screens, etc. - Google Patents

Description

[0001]
[Industrial application fields]
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]
In this type of conventional screen door, a vertical frame on one side of the screen door frame is used as a net storage frame, and as shown in the drawings of the embodiment, a winding shaft 27, automatic as a winding device 7 of the net 5 is included therein. A coil spring 22 for storing the winding force, a central shaft 26 for applying a rotational elastic force to the coil spring 22 and the winding shaft 27 are provided. A movable rod 9 is attached to the tip of the net 5, and the movable rod 9 is fixed to 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 adjustment thereof is necessary.
[0003]
When the movable rod 9 is separated from the vertical frame 2, the net 5 is automatically rewound by the force of the coil spring 22. It is desirable that the net is fully wound by the coil spring force. In other words, when the hook of the movable rod is unlocked, it is convenient if the net is stored all at once by the return of the coil spring, but there may be unreserved residue. In this case, the net is returned manually or returned. Need to be adjusted.
[0004]
In any case, in order to wrap the remaining uncontained and put it in the vertical frame, conventionally, as shown in FIG. 7, an adjustment knob 54 for the coil spring was provided at the upper end of the vertical frame 50. Since the adjustment knob 54 is rotatably exposed at the center of the end face cap 56 at the upper end of the vertical frame 50, it is very difficult to perform the rotation operation.
[0005]
Further, the vertical frame 50 is a combination with the inner and outer members 50a and 50b, and the combination is held incidentally by fixing the end face cap 56 with a screw 57 screwed by a tap. Further, there is a trouble in the winding device, or there is a need for adjustment that cannot be adjusted by the adjustment knob 54, and the work is very difficult even when the vertical frame 50 is opened.
[0006]
[Problems to be solved by the invention]
The present invention has been made in view of the above circumstances, and an object thereof is to provide a net adjusting device for a screen door, a net window, or the like that is easy to adjust so that the whole net is evenly stretched or accommodated.
[0007]
[Means for Solving the Problems]
In order to achieve the above-mentioned object, the present invention is configured by a left and right vertical frame and an upper and lower frame, one of which is a net storage frame, and a winding of a net on which a winding shaft rotates by the elasticity of a coil spring. In screen doors, net windows, etc. with a take-up device and an end cap of the net storage frame with a coil spring adjustment device, the end cap is meshed with the central gear on the central axis of rotation of the take-up shaft. and aside gear and décor, Yes integrally formed ratchet wheel as the adjustment knob aside gear, the release lever, projecting ratchet caught on the ratchet, both ratchets, enhance the elastic force of the coil spring It formed in the clearance angle in the rotational direction, and further, the end face cap, characterized in that interiors of the spring to press the release lever to hold the caught ratchet Amides, to constitute a net adjustment device in the network window or the like.
[0008]
According to said structure, since there is insufficient tension in the state where the net is closed, the adjustment knob is turned when strengthening , and the release lever is operated when weakening.
[0009]
If the net is unwound by the spring force of the coil spring and there is an unstored remainder, the adjustment knob is turned to rotate the winding shaft via the coil spring to rewind the net. In order to lose the spring force of the coil spring, the release lever is operated. Since the adjustment knob and release lever for such operation are exposed on the front surface, it is easy to operate.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
The object of the present invention is not only applied to screen doors and screens as joinery, but also to screens such as cases for storing articles.
[0011]
In addition, the coil spring 22 is used to automatically rewind the net 5, but if the net 5 can be rewound, the use of a spring spring or the like does not contradict the spirit of the present invention.
[0012]
【The invention's effect】
As described above, according to the present invention, the adjustment knob and the release lever are exposed to the indoor side and operated in the screen door, the net window, etc., which automatically rewinds and opens the net by the elasticity of the coil spring. Since it is easy, all the nets are stretched evenly, and there is an excellent effect that adjustment is easy so that the whole can be stored. In particular, since the adjustment knob is a ratchet wheel, the adjustment operation is further facilitated.
[0013]
【Example】
Next, an embodiment of the present invention will be described with reference to the drawings.
[0014]
The drawing shows an example implemented as an insect screen door, and the insect screen door can also be called an insect screen window in order to be fixed and attached to a window. One vertical frame is a net storage frame 1, and the 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. A movable rod 9 is connected to the tip of the net 5, and upper and lower magnets 11, 11 are attached to the movable rod 9 , and metal magnet receivers 13, 13 attracted to the vertical frame 2 are attached.
[0015]
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, and the frame main body 15 is provided with screw pockets 19, 19, 19 at the inner corner and both ends, The opening / closing cover 17 is pivotally supported with the screw pocket 19 at one end as an axis, and a storage port 21 for the net 5 is provided between the members 15, 17.
[0016]
The winding device 7 includes a side gear 39 and a ratchet wheel arranged around the ratchet wheel , the main part of which is housed in the net storage frame 1 and has an adjustment function of the coil spring 22 at the upper end. 23, the adjusting device 10 is provided with a release lever 25 for releasing the elastic force of the coil spring 22. As for the main part, a cylindrical winding shaft 27 is supported on the upper and lower central shafts 26, 26, and upper and lower bearings 29, 29 are fitted and fixed to the winding shaft 27.
[0017]
Coil spring 22 is deposited on the central axis 26 of the upper end, provided with a catch 30 to the lower end sealed multiplied by its lower end to a bearing 29 of the lower, it is secured to the central shaft 26 the upper end with end stop 28. Therefore, when the movable rod 9 is moved in the direction of the arrow Pa that opens the net 5 and the net 5 is rewound, elasticity is accumulated in the coil spring 22 and gradually biased in the direction of rotation of the arrow Pb for winding the net 5. Since the elasticity is retained while the movable rod 9 is attracted to the vertical frame 2 by the magnets 11, 11, the tension of the net 5 is tensioned by the side gear 39 of the adjustment knob 23 and loosened by the release lever 25. As such, it can be adjusted appropriately for both. Since the ratchet 41 is exposed on the front surface, the adjustment knob 23 is operated by placing a finger on it.
[0018]
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, 31, and an upper piece 33a having a connecting piece 35 into which the end cap 33 is inserted into the upper frame 3, and a lower piece overlapping therewith. 33b, and the adjusting device 10 is mounted in the space between them.
[0019]
The adjusting device 10 has a side gear 39 meshed with a central gear 37 to which a central shaft 26 is connected , and an adjusting knob 23 that is a ratchet wheel is integrally formed with the side gear 39. Therefore, when the adjustment knob 23 is rotated in the direction of the arrow Pc, the winding shaft 27 rotates in the direction of the arrow Pb for winding the net 5 through the central gear 37, the central shaft 26, and the coil spring 22. Alternatively, the force is stored in the coil spring 22.
[0020]
The adjustment knob 23 is a ratchet gear and is provided with a ratchet 41 on the outer periphery. The ratchet 43 hooked on the ratchet 41 of the adjustment knob 23 is released as means for storing the force stored in the coil spring 22 in this manner. Projecting on the lever 25, the ratchets 41 and 43 form a clearance angle in the rotational direction Pc. Further, in order to stop the catch, the pin spring 45 is pressed in the catch direction.
[0021]
A rotation shaft 47 of the release lever 25 protrudes from the upper piece 33a. The release lever 25 is bent in a "<" shape and the tip is exposed to the inside of the room alongside the adjustment knob 23. Therefore, if 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, the coil spring 22 returns and the elastic force is lost. The power can be adjusted at an appropriate level. In the state where the net 5 is closed, the elasticity of the coil spring 22 can be preserved by losing all of the elastic force.
[0022]
As for the structure for opening and closing the net 5, guide rails 49 and 49 are incorporated in the upper and lower frames 3 and 4, and sliders 47 and 47 that engage with the guide rails 49 and 49 are attached to the upper and lower ends of the movable rod 9. , Slide insects 51, 51,... That engage with the guide rails 49, 49 are arranged in a line on 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 an end face cap at the upper end of the net storage frame in the screen door.
FIG. 3 is a cross-sectional view of the upper end of the net storage frame as viewed from the indoor side.
4 is a cross-sectional view taken along line AA in FIG. 3;
5 is a cross-sectional view taken along line BB in FIG.
6 is a cross-sectional view showing a state in which the net is closed at the position of arrow CC in FIG.
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 Vertical frame 5 Net 7 Winding device 10 Adjustment device 15 Frame main body 17 Opening / closing cover 22 Coil spring 23 adjustment knob 25 Release lever 26 Center shaft 27 Winding shaft 33 End surface cap 37 Center gear 39 Side gears 41, 43, ratchet Pb, Pc Rotation direction 45 to increase the elasticity of the coil spring 45 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, and it is equipped with a net winding device that rotates the winding shaft with the elasticity of the coil spring, and is attached to the end cap of the net storage frame. In screen doors, screens, etc., which are equipped with a coil spring adjusting device, the end face cap is internally provided with a central gear on the central axis of rotation of the winding shaft and a side gear meshing with the central gear, and the side gear is adjusted and adjusted. The ratchet wheel is integrally formed as a release lever, and a ratchet hooked to the ratchet is projected on the release lever, both ratchets are formed at a clearance angle in the rotational direction to increase the spring force of the coil spring , and the end cap the amide which is characterized in that the interior of the spring to press the release lever to hold the caught ratchet, the net adjustment device in the network window or the like

Images