JPH01100801A - Making of shade with protection for lighting lamp - Google Patents

Abstract

PURPOSE: To make the manufacturing method efficiently and automatically by bridging a pair of linear frame materials with a number of bamboo thin sticks and bending it to form a prescribed shape. CONSTITUTION: A number of bamboo thin sticks 20 of a prescribed size are arranged between linear frame materials 10, 10 parallel to each other so as to be orthogonal to the frame materials 10, 10, and the frame materials 10, 10 are bonded to the end parts of the bamboo thin sticks 20. In this case, the frame material 10 is formed with two materials consisting of a substrate 11 and a lid body 12, and the bamboo thin sticks 20 fed automatically are bonded with an adhesive accommodated in a receiving groove between the substrate 11 and the lid body 12. In the following process, thin sticks 20 in a ladder-like constitution body formed with the frame materials 10, 10, and a number of the thin sticks 20 are bended by heating bending dies 31, 32 to form a required shape. Subsequently, the frame materials 10 and 10 are bended by pressure rollers 51 and 52 to form a required shape. Thereby the processes can be simplified and automated.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) The present invention relates to a method for manufacturing a rod-equipped ceiling for an illumination lamp, which includes a pair of ring-shaped frames and a large number of rods that bridge the frames.

(Conventional technology) A cedo with a number of sticks lined up around the outside has a Japanese-style feel and is widely used, but it is time-consuming to make.

A sed with strings is formed by making a pair of ring-shaped frames, fixing the pair of frames one above the other, and attaching the top and bottom ends of each string to each frame. It would be fine if each bar was attached to a flat surface in one piece, but in reality, it is necessary to attach each bar along the curved surface of the frame while changing the posture of each bar (the direction in which the bar extends) little by little. It takes time and effort.

[Problem that the invention seeks to solve]

Conventional string installation involves attaching the upper and lower ends of each string in turn around each frame material that has been formed into a ring shape in advance, and at this time, it is necessary to bend each string or handle bent strings, making the work time-consuming. difficult and time consuming.

The present invention proposes a manufacturing method that is more efficient and easy to automate, except for the step of attaching strings around the ring-shaped frame material.

[Means for solving problems]

The present invention includes a first step of obtaining a combined body of a pair of linear frame members parallel to each other and a number of girders bridging the frame members, and this combined body is a semi-finished product in the shape of a ladder. At this stage, the frame is still a straight frame material. A large number of bamboo timbers may be already curved or may be yet to be curved9.
The present invention includes a second step of bending each frame material with a string material into a ring shape, and each string material is attached to the frame material at a stage before the frame material is bent. Each straw material may be formed integrally with the frame material before the frame material is bent. If each straw material is not bent, each straw material may be bent during the second process itself or before or after the second process. A process is prepared.

Although a straight frame material is used in the first step of the present invention, it may be a true straight line or a slightly curved frame material. This slight curvature gives the frame material a tendency to bend and is meant to aid later bending, so it is assumed to be straight in this specification.

[Effect]

In the first step of the present invention, a linear frame material is handled. For this reason, not only when the Higo wood is integrally molded with the frame material, but also when the Higo wood is attached to the frame material after the Higo wood has been formed.
Since the frame material is straight, the work is easy.

In the second step, the combined body of the straight frame material and the linear or curved bamboo material is bent into a ring shape to form the basic shape of the three-dimensional bamboo material. .

〔Example〕

Here, the embodiments shown in FIGS. 1 to 9 will be described. This embodiment relates to an illuminating lamp including an illuminating lamp main body A and an illuminating lamp body B, and is particularly intended to obtain the illuminating lamp body B.

This illumination lamp is of a so-called round hanging type, and the illumination lamp side B is accompanied by a large number of bars 20. Although the number of sticks (hereinafter referred to as stickwood, including those not yet completed) 20 may be thinned out as shown in FIG. 7, this is purely for illustration purposes. The illumination light sedo B includes a pair of ring-shaped frames (hereinafter referred to as frame members, including those not yet completed) 10, and the frame members 10 and 10 are bridged with each other with each strip material 20. Both the frame material 10 and the straw material 20 are made of thermoplastic vinyl chloride resin.

The first step of the present invention is as shown in FIGS. 3 and 4.

A combined body of a pair of linear frame members 10 parallel to each other and a large number of bars 20 bridging the frame members is obtained. Each frame member 10 is made by pasting together a base 11 and a lid body 12, and before this pasting, the end portion of a straight bar material 2o is attached to a receiving groove 13 on the upper surface of the base body 11.

The receiving groove 13 has a shape suitable for receiving the strands 20 that have spread upward, and the gap between the grooves 13 and the strands 20 is filled with an adhesive (not shown). This adhesive is applied to the base 11 and the lid 1.
It also serves the role of fixing 2.

The work of feeding the strips 2o into the receiving grooves 13 of the base 11 may be done manually, but this automation requires a feeding device that intermittently feeds the pair of strips 11 at the pitch of the strips 20, and
0 is lined up horizontally and feeds one by one, and when the receiving groove 13 stops at the feeder outlet, when this receiving groove 1
This is realized by configuring so that one piece of bamboo wood 20 is passed every three times.

FIG. 5 shows the process of bending the beams performed on the combined body of the frame material 10 and the beam materials 20. This work uses a pair of heated bending dies 31.32.
By heating and pressurizing mainly the central portion of each straw material 20, the entire straw material 20 is formed into a desired shape corresponding to the heating bending molds 31 and 32. In this bending process, the frame material 1
Each strip 20 with an o attached is passed over the female side heating bending die 31, and the other heating bending die 32 is gradually pressed onto it. FIG. 5 shows this progress in an exploded perspective view. Under this situation, the position and attitude of each frame member 10 will change as the bending progresses, so care must be taken not to restrict them. do. The above bending process may be omitted.

Also, the order of the steps may be changed.

6, FIG. 1, FIG. 7, and FIG. 8 show the second step of bending the frame material 10 with the bamboo material 20 into a ring shape. Of these, FIG. 6 shows a heating step for imparting bending workability, and heating rollers 41 to 46 are used. The stepped portions on one or both sides of each of the heating rollers 41 to 46 have a shape that matches the frame material 10.
Combined body 10.2 without touching the straw material 20 while heating 0.
0 can be sent. The next step shown in FIG. 1 is a process of pressurizing and bending the heated frame material 10,
Two sets of three 1ffl pressure rollers 51 to 56 are used. The pressure rollers 51 (54) and the outer pressure rollers 52, 53 (55, 56)i, which are paired with the inner pressure rollers 51 (54)
1 (54) to press the frame member 10 against the curved surface, thereby bending the frame member 10 as shown in the figure.

The portion of the frame member 10 that is contacted by the outer pressure rollers 52, 53 (55, 56) is the portion of the frame member 10 shown in FIG. 4A. Therefore, it is necessary to secure this portion A below the straw material 20 as a support allowance. 7 and 8 show the steps of joining one end and the other end of the bent frame material 10, and as shown in FIG. Both ends are pressed together and heated, and when both ends have melted to an appropriate amount, the heating plate 60 is withdrawn, and the ends are immediately brought together as shown in FIG. 8 and heat welded.

Reference numeral 61 in FIG. 8 indicates a joint surface that has been thermally welded.

FIG. 9 shows the finishing process. 71 in the diagram
is a support bar, and its upper and lower ends are connected to each frame member 1.
0 mounting part 72. The number of support bars 71 is four, and they are arranged around the frame member 10 at equal intervals to regulate the dimensions between the frame members 10. Reference numeral 81 is a translucent sheet, and the upper and lower edges thereof are arranged at the corners of each frame material 10, and are fixed through one or more steps of fixing with an adhesive not shown.
The round-shaped sedo B with strings as shown in the figure is completed.

Instead of the round-shaped corded side like B in Figure 2,
It is also possible to obtain a rectangular sedge with strings as shown in Figure 0. The parts numbers in FIG. 10 are taken directly from those mentioned above, and the explanation thereof will be omitted, but the manufacturing method for this rectangular shape is almost the same as that for the round shape. For this reason, I will only point out the differences from the round one. Said sixth
In the steps shown in Fig. 1, the frame material 10 is uniformly heated and bent into a round shape, but in the case of a rectangular shape as shown in Fig. 10, the part to be heated and bent is 4 along the frame material 10
place. The corresponding locations in the frame material 10 are shown in FIG.
Roller 41'' in Figure 1.

44. Those rollers 4 when they come to the position of 51.54
1, 44, 51, 54 to the other roller 42°43.4
5, 46, 52, 53, 55, and 56, and adjust their mutual spacing so that they are hardly pressed in other cases.

Various modifications and changes can be made to the implementation of the present invention.

FIG. 4 shows a frame material 10 with a bamboo material 20 attached to the frame material 10 later.
The combination 10.20 is the combination 10.20.
．． 20 can be integrally molded in advance from synthetic resin. Each straw material 20 is made first through an extrusion molding step and a cutting step, and they are arranged side by side and fixed with a jig, and one side of each straw material 20 is taken into a mold for one frame material 10.

It is also possible to incorporate the other side of each strip material 20 into the other frame material 10 mold, and then embed each frame material 10 in the molding. It is also possible to integrally mold one of the frame members 1o and each barb material 20, and embed the remaining frame members 10 in the same manner as described above. When the bamboo material 20 is formed into a molded material using a mold, it is also possible to pre-form the material 20 into a curved shape and omit the subsequent step of bending the material. Heated bending die 31.3 in Figure 5
If you change the shape of 2, it will become a square shape as shown in Figure 10.
0, and it is also possible to bend it into an approximately V-shape.

The bending process shown in Fig. 5 is also a process of changing the orientation of the frame material 1o from Fig. 3 to that shown in Fig. 5.
The frame bending process shown in the figure is also a process for changing the direction of each of the beam members 20 from the parallel state shown in FIG. 5 to the radial state shown in FIG. 1. The reason why the direction of each bamboo material 2o is changed to the radial state is because the direction of the frame material 10 is first changed as described above. Even when the combined bodies 10 and 20 are integrally molded as described above, it is easier to design the mold if they are molded not in the shape shown in FIG. 5 but in the shape shown in FIG. 3 in the preceding stage.

〔Effect of the invention〕

As described above, the present invention includes a first step of obtaining a combined body of a pair of linear frame members parallel to each other and a large number of strands bridging the frame members, and a first step of obtaining a combination of a pair of straight frame members parallel to each other and a large number of strands that bridge the frame members. This method is equipped with a second step of bending the material into a ring shape, which eliminates the need to attach each barb material around the frame material of the ring-shaped frame material. Because of the replacement, workability is improved compared to the conventional one, and it becomes possible to provide a lower-cost sed with a bar.

[Brief explanation of the drawing]

The figures are all related to embodiments of the present invention, and the first
The figure is an explanatory diagram of the work of bending the frame material, Figure 2 is a perspective view of the illumination lamp including the corded side to be manufactured, Figure 3 is a perspective view of the combined body, and Figure 4 is an enlarged view of its main parts. , Fig. 5 is an explanatory diagram of the bending work, Fig. 6 is an explanatory diagram of the frame heating work, Fig. 7 is an explanatory diagram showing the joining work of both ends of the frame material, and Fig. 8 is the main part showing the situation after joining. A perspective view, FIG. 9 is an explanatory view of finishing work, and FIG. 10 is a perspective view showing another example of a sedge with a bar. In the figure, 10 is a frame material, 20 is a bamboo material, 31 and 32 are heating bending dies, 41 to 46 are heating rollers, 51 to 56 are pressure rollers, and 60 is a heating plate. Figure 2: Chiga, Figure 5

Claims (1)

[Claims] 1. The first step is to obtain a combined body of a pair of linear frame members parallel to each other and a large number of bamboo timbers that bridge the frame members, and to bend each frame member with the bamboo timbers into a ring shape. A manufacturing method for a lighting lamp including a second process.