JPH04136392A - Method and device for installing net - Google Patents

Abstract

PURPOSE:To accurately and easily install a net by providing at the periphery of a screen frame body a net support channel which is continued along the four sides of the frame body framed into a rectangle, and placing a net on the frame body while exerting tension on the net, and sequentially pushing the four edges of a net holder into the net support channel continued along the four sides of the frame body. CONSTITUTION:A net installing device comprises a working table 1, first and second net retaining pieces 2,3 and a net feed portion 4. The working table 1 is provided with positioning stepped portions 8,9 and also a shifting mechanism 14 is provided so that time retaining pieces 2, 3 are freely separated from each other. A frame body A for a screen is so formed that a net support channel 30 is continued along the four sides of a frame body 31. A net B is let out and exerted with a predetermined holding force and tension and placed on the frame body A. Under these conditions the ends and two side edges of a net holder are pushed into the net support channel 30 together with the net B and the two remaining side edges of the net holder are similarly pushed into the channel 30. The net can thus be accurately installed on the frame body A with no sag.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method and an apparatus for attaching a screen to a frame for a screen door, which is formed by framing a frame member having a screen receiving groove into a rectangular frame shape.

[Conventional technology]

Generally, the work of attaching a screen to a screen door frame was done manually.

For example, a screen of a size commensurate with the size of the screen door frame is placed on top of the screen door frame, and the periphery of the screen is attached to the screen door frame along with a long screen presser made of rubber or synthetic resin. body 4
The net was attached by sequentially pushing and fixing it into the circumferentially continuous net receiving groove by hand or with a net pushing roller shown in Japanese Utility Model Publications No. 52-5893 and No. 53-22473.

[Problem to be solved by the invention]

In the case of the above-mentioned rope installation work, the net was placed on the top surface of the screen door frame, so the net was almost in a tension-free state, and the wire was stretched continuously around the four circumferences of the screen door frame. When pushing the periphery of the screen along with the screen presser into the screen receiving groove, a part of the screen may be deformed, causing wrinkles in the screen, and when the screen is attached to the screen door frame, the screen may sag, resulting in an unsightly appearance. be.

In order to solve this problem, it is best to apply tension to the screen placed on the top surface of the screen door frame and press and fix the peripheral edge of the screen into the net receiving groove together with the screen presser. 4
It is necessary to continuously apply tension to the net in a well-balanced manner when sequentially pushing it into the continuous net receiving groove, and applying tension in this way is not easy and requires a high level of skill. When attaching a screen to a large screen door frame, one worker cannot apply tension and multiple workers are required.

SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems and provides a method and apparatus for attaching a screen, which enables a single worker to accurately attach a screen to a screen door frame without causing any slack, without requiring any skill. The purpose is to provide.

[Means and operations for solving the problem] When pushing the net B together with the net presser C into the net receiving groove 30 of the frame material 31, the net B
By applying an appropriate tension to the net and holding the leading edge and one side edge of net B with a predetermined holding force, if a tensile force of more than the predetermined value is applied locally to the net, the net in that area will lose its holding force. The net B can be adjusted evenly over the longitudinal direction by slipping inward against the frame material 31, and the operator can press the net presser C without special caution. This is a method in which the net B can be sequentially inserted into the net receiving grooves 30 for four consecutive rounds to prevent deformation and wrinkles.

〔Example〕

(Rope attachment device) As shown in Fig. 1, a rope attachment device is composed of a work table 1, first and second net holding pieces 2, 3, and a net supply section 4, and the work table 1 is shown in Fig. 4. As shown, a first protruding strip 6 and a second protruding strip 7, which are perpendicular to each other, are integrally provided at the corner portion of the screen door frame mounting surface 5, and a first positioning step 8 and a second protruding strip 7 are integrally provided.
As shown in FIG. A recessed portion 12 is formed on the side with a side opening, and when the screen B is attached to a large screen door frame A as shown in FIG. 1, a cover 13 is attached to the recessed portion 12, and When attaching the screen B to the small screen door frame A, as shown in FIG.

That is, since the work table 1 has a substantially rectangular screen door frame mounting surface 5 having a predetermined width and length, when pushing the screen from the side of the work table 1, the screen door frame A If the screen door frame A is small, it becomes difficult to push the screen in, so the operator is designed to be able to enter into the recessed part 12 and easily push the screen in even a small screen door frame A.

- The first and second net holding pieces 2 and 3 are movable in the vertical direction by a moving mechanism 14.

The moving mechanism 14 has an arm 1 as shown in FIGS. 1 and 2.
5, this arm 15 is supported on a base 16 provided on the side surface of the work table 1 by a rotating shaft 17 so as to be vertically swingable,
This arm 15 is swung downward by a spring 18 so that the rubber pads 19 provided on the lower surfaces of the first and second screen holding pieces 2 and 3 provided at the tip of the arm 15 are pressed against the upper surface of the screen door frame A. and the spring 18 is attached to the base 16.
The spring force can be increased or decreased by loosening the lock nut 22 and retracting the adjusting bolt 21. The pressing force of the mesh presser piece 2.3 can be adjusted, so that if the tension on the mesh caused by the pushing operation by the cooking roller is too strong, making it difficult to push in and damaging the mesh, the pushing force can be adjusted. Conversely, if the tension is weak and wrinkles occur, the pressing force can be increased.

As shown in FIG. 1, the net supply section 4 has a reel 25 rotatably supported on a shaft 24 supported by a bracket 23 on the work table 1, and the net B is wound around the reel 25. is urged to rotate in the direction in which the net B is wound up by a spring or the like.

The screen door frame A is a rectangular frame made of a frame material 31 having a screen receiving groove 30, and the screen receiving groove 30 is continuous four times.

(How to install the net) ■As shown by the imaginary line in Figure 2, attach the arm 15 to the spring 1.
8 and swings upward to bring the first and second screen holding pieces 2 and 3 to an upper position away from the screen door frame mounting surface 5 of the work table 1.

At this time, the spring 18 crosses the rotating shaft 17 and the arm 1
5 in the upper position.

■The worker holds the screen door frame A in his hand and places it on the screen door frame mounting surface 5 of the work table 1 with the screen receiving groove 30 facing upward, and then The two adjacent frame members 31 and 31 of the frame body A are connected to the first and second positioning steps 8 and 9.
to position it.

■Hold the edge of the net B and pull it out, as shown in Figure 5 (b).
), the leading edge of the net B is engaged with the hook-and-loop tape piece 11 to temporarily hold it.

Thereby, even if the leading edge of the net B is curled upward due to the curl, the leading edge of the net B can be held in a straight line by the hook-and-loop tape piece 11 against the curl.

In other words, since the net B is composed of hard fibers made of monofilament made of synthetic resin, when it is wound around a reel, it becomes curly, and when the net is let out and placed on the top surface of the screen door frame, the net will become loose. Due to curling, the leading edge of the blade curls upwards into a protruding state.

■ Swing the arm 15 and use the rubber pads 19 of the first and second net holding pieces 2°3 to move the tip line and one side edge of the net B to the frame member 31 as shown in FIGS. 5(c) and 6. Press it against the top surface of the As a result, tension is applied to the net B by the reel winding force.

At this time, as mentioned in the previous ■, hook-and-loop tape piece 1
Since the leading edge of the net B is temporarily held by the arm ] 5, the leading edge of the net B is pressed and held against the frame 31 by the first and second net holding pieces 2 and 3. becomes easier.

■As shown in FIG. 5(d), the cooking net C is placed in the net receiving groove 30 of the frame material 31 on the opposite side to the frame material 31 supporting the leading edge of the net as shown in FIGS. 2 and 6. Push in sequentially using the cooking roller D or by hand to fix.

At this time, tension is applied to the net B, and the net B is held so that it slips when it is pressed against the upper surface of the frame member 31 by the first net presser piece 2 and pulled with a strong force.
When a tensile force of more than a predetermined value is locally applied to the screen when it is pushed into the screen receiving groove 30 together with the cooking screen C, the screen B slips inward of the screen door frame A in response to this tensile force. The tensile force can be adjusted to be uniform, and the net will not be deformed or wrinkled.

■As shown in FIG. 5(d), the net receiving groove 3 of the frame material 31 on the opposite side facing the frame material 31 supporting one side edge of the net B
1. Push the cooking pieces C into the container 0 one after another and fix them.

At this time, tension is applied to the net B as described above, and the side edge opposite to the side edge pushed into the net receiving groove 30 is pressed against the upper surface of the frame material 31 by the second net holding piece 3. Therefore, the mesh B will not be deformed and wrinkled as described above.

In addition, when pushing the cooking layer C as explained in the above (■ and It is better to start pushing from the orthogonal vertices of the frame material 31° 31, since it is easier to push the frame material 31.

That is, it is sufficient to push it in the direction of the solid line arrow in FIG. 5(d) and then push it in the direction of the dotted line arrow.

■As shown in FIG. 5(e), the cooking tray C is sequentially pushed into the net receiving groove 30 of the frame material 31 supporting the leading edge of the net B with the first net holding piece 2, and then the second net The cooking plates C are successively pushed and fixed into the net receiving groove 30 of the frame member 31 supporting one side edge of the net B by the presser piece 2, and the cooking plates C are cut.

Note that the cooking length C may be set to a predetermined length in advance.

At this time, since tension is applied to the net B, it will not be deformed and wrinkled as described above, but the side opposite to the part pushed into the net receiving groove 30 is already cooked and the frame material 31
Since the net B is pushed into the net receiving groove 30 and fixed, a large tension is applied to the net B by being pushed into the net receiving groove 30 together with the cooking material C, but this large tension causes the rubber pad 19 to Since the portion supported by the upper surface of the frame member 31 is pulled and slips, a pushing allowance for the net B is obtained.

For this purpose, a rubber pad 19, preferably a soft rubber pad 19, is provided on the lower surface of the first and second mesh holding pieces 2.3.

■Cut and remove the screen part that protrudes from the screen receptacle 30 that extends around four consecutive times of the screen door frame A, as shown in Figure 5 (
As shown in f), the work of installing the net is completed.

(Modified example) The leading edge and one side edge of the net B may be pressed only against the upper surface of the frame material 31 with cooking pieces, or may be pressed only against the upper surface of the positioning step.

You can also use a cooking roller with a cutter to cut off the excess mesh at the same time as pressing.

The reel 25 of the net supply unit 4 may be configured to have a large rotational resistance with respect to the shaft 24 so that tension is applied to the net B when the leading edge of the net B is pulled and fed out. It may also be installed horizontally on one side of the table 1.

The hook-and-loop tape piece 11 has a stepped portion 8 in the first and second positions.
, 9 may be provided respectively.

The upper surfaces of the first and second positioning steps 8 and 9 are lower than the upper surface of the frame member 31 so that there is no support for placing the net B, but they may be set at the same height as the upper surface of the frame member 31.

The weight of the first and second presser pieces 2.3 provided at the tip of the arm 15 is such that they can apply a predetermined tension to the net B, and the presser pieces 2.3 that are made heavy in this way are You can also use it to hold down the net. In this case, the spring 18 becomes unnecessary, and the structure of the moving mechanism 14 for the first and second presser pieces 2 and 3 can be simplified.

〔Effect of the invention〕

When pushing the net B together with the cooking tray C into the net receiving groove 30 of the frame material 31, a moderate tension is applied to the net B, and the leading edge and one side edge are held with a predetermined holding force. from,
When a tensile force of more than a predetermined value is applied locally to the net, the net in that area resists the holding force and slips inward against the frame material 31, so that the tensile force can be adjusted uniformly over the longitudinal direction.
The mesh B can be successively pushed into the mesh receiving grooves 30 that are continuous four times so that the mesh B will not be deformed and wrinkled by pushing the cooking mesh C without special precautions by the operator. Since tension is applied to the screen, the operator does not have to push the screen while applying tension, so that the screen can be accurately attached to the screen door frame by one operator without causing any slack.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which Fig. 1 is an overall perspective view of the rope attachment device, Fig. 2 is a cross-sectional view of the cooking part, Fig. 3 is a cross-sectional view of a piece of hook-and-loop fastener tape, and Fig. 4 is a working example. A perspective view of the table, FIGS. 5(a) to 5(f) are explanatory views of the process order of the method for installing the net, and FIG. 6 is a sectional view of the state of installing the net. 1 is a work table, 2 and 3 are first and second net holding pieces, 4 is a net supply part, 5 is a screen door frame mounting surface, 8 and 9 are first and second
Positioning stepped portion, 30 is a screen receiving groove, 31 is a frame material, A is a frame for a screen door, B is a screen, and C is a cooking plate.

Claims (3)

[Claims] (1) In a method of attaching a screen B to a screen door frame A in which a frame member 31 having a screen receiving groove 30 is framed in a rectangular shape, the screen B is attached to the surface of the screen door frame A where the screen receiving groove 30 is opened. is placed, and tension is applied to the net B by holding the leading edge and one side edge of the net B with a predetermined holding force so as not to move relative to the upper surfaces of the two adjacent frame members 31, 31. , In this state, the frame member 31 on the opposite side to the frame member 31 on the front edge side of the net B
The net retainer C is placed in the net receiving groove 30 of the frame material 31 on the opposite side facing the frame material 30 on one side edge of the net B.
The method for attaching a net is characterized in that the net B is pushed into the net holding grooves 30 of the remaining two frame members 31 and then the net B is pushed together with the net presser C and fixed. (2) A work table 1 having first and second positioning steps 8 and 9 at the corners of the screen door frame mounting surface 5; first and second net holding pieces 2 and 3 that are movable toward and away from each other; A net attaching device comprising a net supply section 4 which supplies the net under appropriate tension. (3) The net attachment device according to claim 2, characterized in that a hook-and-loop fastener tape (11) is provided on the upper surface of the first positioning step (8).