JPH066083B2 - Folding fan manufacturing method - Google Patents

Description

Description: FIELD OF THE INVENTION The present invention relates to a method for manufacturing a fan, and is intended to improve the productivity of a fan in which coated paper is welded or pressure-bonded to a bone piece made of synthetic resin. It is a thing.

[Prior Art and its Problems] Conventionally, a full-scale fan using bamboo bone fragments is manufactured by the following method. First, the coated papers (2) and (2) slightly larger than the finish size are glued and overlapped, and then naturally dried for an appropriate time, and then the coated papers are folded so as to match the folded state of the fan. Next, a metal spatula having an insertion portion similar to that of the bone piece is inserted into each portion corresponding to the bone piece insertion portion to partially open the gluing portions of the coated papers, and to As shown in Fig. 5, the bone pieces (10) and (10) coated with glue are forcedly pushed into the open position to a predetermined position, and then the bone pieces (10) and (10) hole for lame (11), (10) 11)
The kaname (26) is inserted into the bone and the bone pieces (10) and (10) are rotatably attached to the shaft. Finally, the semi-finished fan is folded, and the peripheral edges of the coated papers (2) and (2) are finished off to complete the fan.

However, this method has a problem of low productivity.

This is because, in the above-described conventional manufacturing method, each manufacturing process requires a lot of skill and many processes, and each process must be performed manually. Especially coated paper
This is because the bone pieces (10) and (10) must be individually inserted and fixed at predetermined positions after the (2) and (2) are attached to each other.

[Technical Problem] In order to improve the production efficiency in the method for manufacturing a fan, the present invention allows the bone pieces (10) and (10) to be easily placed at predetermined positions between the coated papers (2) and (2). It is a technical problem to be able to arrange.

[Technical Means] The technical means of the present invention taken in order to solve the above technical problem is "a bone fragment (10), (10) having a hole (11) for kaname at the end on the side to which kaname is attached. Radially arranging at equal angular intervals, and forming a bone fragment connecting body (1) made of a synthetic resin in which the ends of the bone fragments (10) and (10) are integrally connected by a connecting piece. A step of stacking the coated papers (2) and (2) on both front and back surfaces of the required area of the bone fragment connected body (1) and welding or pressure-bonding the contact parts of these coated papers, and this welding or welding At the same time as or after the step, the step of cutting out the connecting piece, and after cutting the connecting piece, each bone piece (10) is covered with paper so that the holes (11), (11) for kaname provided in the bone piece are aligned with each other. (2), (2)
And a step of relatively moving it by a predetermined amount. ”

[Operation] The above technical means operates as follows.

When the coated papers (2) and (2) are superposed on both the front and back surfaces of the bone piece connecting body (1) and the contact portions of these coated papers (2) and (2) are heat-welded or pressure-bonded, the bone The one-piece connected body (1) and the coatings (2) and (2) are integrated. In the above state, the bone pieces (10), (10) and the covering papers (2), (2) are not in a fixed state, so when the connecting piece is cut off, the respective bone pieces (10) are covered with the covering paper (2), It is possible to move relative to (2). Further, since the bone fragments (10), (10) are positioned radially, when each bone fragment (10) is moved by a predetermined amount in the protruding direction, the holes (11), (11) for turtles formed in the bone fragments (10), (11) are formed. Will match. After that, or before this, the ribs are attached, and the holes for the ribs of this rib and the holes for the ribs of the bone pieces (11), (1
The fan is completed after the steps of inserting kaname into 1) to pivotally attach the bone pieces (10), (10) and the ribs, and folding the coated papers (2) and (2).

Since the bone fragments (10) and (10) are arranged in a radial pattern,
In the completed state, the coated papers (2) and (2) are in a state of preventing the bone fragments (10) and (10) from coming off.

[Effects] The present invention having the above-described configuration has the following unique effects.

The bone fragments (10), (10) can be formed by simply moving the bone fragments (10) located between the heat-welded or pressure-bonded coatings (2), (2) in a protruding direction. Since it is arranged at a predetermined position, no skill is required unlike the above-mentioned conventional method. Therefore, productivity is improved.

[Embodiment] Next, an embodiment of the present invention will be described with reference to FIGS.

In this embodiment, laminated paper which can be heat-welded is used as the coated paper (2), and the coated paper sticking device shown in FIG. 14 is used. As shown in the figure, this device includes a first cushion material (51) in which the coated papers (2), (2) and the bone fragment connecting body (1) are attached to the lower surface of the upper mold (50), The lower mold (52) is clamped by a second cushion material (53) attached to the upper surface of the lower mold (52) to weld the coated papers (2) and (2) to the bone piece connecting body (1).

Therefore, the upper mold (50) and the lower mold (52) are arranged so as to face each other, one lower mold (52) is fixed to the upper surface of the bed, and the other upper mold (50) is an air cylinder. The upper mold (50) and the lower mold can be moved up and down at a predetermined timing by (8).
(52) The mutual pressing force is set to a predetermined value.

Next, in this embodiment, the bone fragment connecting body (1) is made of a synthetic resin impregnated with stearic acid. As shown in FIG. Bone fragment (10),
(10) are arranged radially and these bone fragments (10),
The outer peripheral ends of (10) are connected by connecting pieces (12), (12), and the inner peripheral ends are connected by connecting pieces (13), (13).
A hole (11) for kaname is formed at the end of each of (0) and (10) on the side where the kaname is attached. And this bone fragment connected body
(1) is integrally formed by injection molding.

The rib (22) is made of synthetic resin and, as shown in FIG. 12, has protrusions (28) and (28) corresponding to the through holes (29) of the extension piece (21) described later. The projection (28) with a through hole (2
The ribs (22) are set to the proper positions of the extension pieces (21) in the state of being fitted in the member (9).

Further, the coated papers (2) and (2) used in this embodiment are, as shown in FIG. 2, provided with a heat-welding layer (4) made of a thermoplastic synthetic resin on one surface of the paper (3). As shown in FIG. 3, the bonding plane shape is such that the whole is a fan shape slightly larger than the expanded shape of the fan, and an arcuate notch is formed in the center. The shape of the above cutout is
It matches the inner circular arc of the finished shape of (2) and (2).

The actual manufacturing of the fan using the above apparatus, the ribs (22) and (22), the bone piece connecting body (1) and the covering papers (2) and (2) will be described in detail below.

First, as shown in FIGS. 3 and 4, the bone fragment connected body (1) is sandwiched between the coated papers (2) and (2) so that the heat-welding layers (4) and (4) form an inner surface. So that they are integrated into a second
Place it on the upper surface of the cushion material (53).

In this embodiment, since the coated papers (2) and (2) are joined together by welding, the upper mold (5
The lower mold (0) and the lower mold (52) are both heat-type molds heated to a predetermined temperature by a heater, and the first cushion material (5
1) and the second cushion material 53 are both made of a heat-resistant silicon rubber plate. Also, the upper mold (50) is
In one sticking operation, the lifting operation is performed twice at a predetermined timing. Further, hits (56) to (59) for positioning the adherend are arranged near the lower mold (52). Of these, the hits (56) and (57) are for setting the fixed positions of the coated papers (2) and (2) in a predetermined manner as shown in FIG. Are set so as to come into contact with the outer peripheral ends of the coated papers (2), (2) arranged at appropriate positions. Further, the other hits (58), (59) function as positioning means for the bone fragment connecting body (1), and are located at the outermost position when the bone fragment connecting body (1) is placed at an appropriate position. It is arranged so as to come into contact with the bone fragments (10), (10).

Therefore, one of the coated paper on the upper surface of the second cushion material (53)
(2) is placed so that the heat-welding layer (4) is on the upper surface, and the coated paper (2) is contacted between the contact (56) and (57), and the upper surface of the coated paper (2) is contacted. Place the bone fragment connecting body (1) and bring the outermost bone fragments (10) and (10) into contact with (58) and (59), and further,
When the other coated paper (2) is placed on the bone fragment connected body (1) in the same manner as the one coated paper (2), the bone fragment connected body (1) and the coated papers (2), ( 2) is set to the proper position and in the specified state.

Then, when the coated paper sticking device is operated, the laminated body of the bone fragment connected body (1) and the coated papers (2) and (2) is pressed by the first press to the upper mold (50) and the lower mold (52). It is pinched between them, and as a result, the coated papers (2) and (2) attached to both sides of the bone fragment connected body (1) are deformed so as to face each other as shown in FIG. Also, the upper mold
(50), lower mold (52) is maintained at the specified temperature,
The heat-welding layers (4) and (4) on the inner surfaces of the coated papers (2) and (2) are partially welded to each other. Next, when the second pressing is performed after the first pressing is finished, the coated papers (2) and (2) are preliminarily bent and deformed inward, so that they are positioned on the inner surface of these coated papers. Finally, the heat-welding layers (4) and (4) will be surely heat-welded to each other. Since the bone fragment connecting body (1) is impregnated with stearic acid, the bone piece connecting body is in the above-mentioned welded state.
(1) and the coated papers (2) and (2) are not in a fixed state.

After the above steps, the semi-finished fan to which the coated papers (2) and (2) are adhered is punched along the chain double-dashed lines (C) and (B) of FIG. When (13) and (13) are cut and removed, the coated papers (2) and (2) are punched into the shape as shown in FIG. In the punched state, the outermost bone fragments (10), (1
On the outside of (0), there is a shape provided with extension pieces (21), (21) for attaching ribs, and the extension pieces (21), (21) have through holes (29), (29), respectively. ) Is formed.

After that, when a pressure is applied to the sticking areas of the coated papers (2) and (2) using a press die having a ridge aligned with the folding position of the coated papers (2) and (2), FIG. Fold lines (20) and (20) are engraved alternately on the front and back surfaces of the coated papers (2) and (2) as shown.

Then, the through holes (2) formed in the extension pieces (21) and (21) described above.
The protrusions (28) and (28) of the rib (22) are fitted into 9) and (29), and the protrusions of the protrusions (28) and (28) from the coated paper (2) and (2) are attached. After melting, caulking is stopped as shown in FIG. As a result, the ribs (22) and (22) are integrally fixed to the proper positions of the extension pieces (21) and (21).

Next, the bone pieces (10), (10) are moved relative to the coated papers (2), (2), and the holes (11) for kaname formed in the bone pieces (10) are inserted into the ribs.
The ribs (22) and bone fragments (10) are made to match the holes (11) for kaname formed in (22) and (22), and the kaname (26) is inserted through these holes (11) and (11) for kaname. ) Is rotatably swaged,
As shown in FIG.

Then, the coated papers (2) and (2) are folded along the fold lines (20) and (20), and the folded portion of the coated paper of the folding fan is clamped as shown in FIG. Then, the folded portions of the coated papers (2) and (2) are strongly bent in the folded state.
The shape of the folding fan is small and cohesive.

Incidentally, the bone fragment connecting body (1) shown in FIG. 15 can be used instead of the bone fragment connecting body (1) of FIG. 1 used in the above-mentioned embodiment.
In this bone fragment connecting body (1), bone fragments (10) and (10) are arranged radially and at equal angular intervals, and only the tip ends of them are connected by connecting pieces (19) and (19). And the connecting piece
(19) and (19) are set wider than the connecting pieces (12) and (12) of the above embodiment.

Further, when manufacturing a fan using this bone piece connected body (1), the contact (58), (59) of the above apparatus should be made as shown in FIG.
It shall be formed from uneven parts as shown in Fig. 7, and the kaname attachment side, which is the free end side of each bone fragment (10), (10), should be closely fitted between these convex parts (9), (9). I am trying to do it.

Therefore, during heat welding of the coated papers (2) and (2) to each other, bone fragments
In (10) and (10), the upper end is supported by the connecting pieces (19) and (19), and the kaname attachment side is supported by the convex portions (9) and (9). , (10) are not fixedly arranged on the coated papers (2), (2) in a state of being displaced from a predetermined position.

As described above, in any case, so-called laminated paper, which has both the coated papers (2) and (2) provided with the heat-welding layer (4) on one side, is used. 2), (2)
Only one of them may be laminated paper.

Further, as the coated papers (2) and (2), pressure-sensitive adhesive paper having an adhesive layer other than the portions where the bone fragments (10) and (10) are located can be used. Further, in some cases, plain paper may be attached by gluing. In this case, it is not necessary to heat the upper mold (50) and the lower mold (52) to a constant temperature,
Further, the first and second cushion materials (51), (53) may be cushion materials, and heat resistance is not required.

[Brief description of drawings]

1 to 13 show explanatory views of an embodiment of the manufacturing method of the present invention, FIG. 1 is a plan view of a bone fragment connected body (1), and FIG. 2 is an enlarged sectional view of a coated paper (2). , FIG. 3 is a partially cutaway plan view showing a state in which coated papers are overlapped from the front and back of the bone fragment connecting body (1), and FIG.
Fig. 5 is a sectional view taken along the line AA, Fig. 5 is an explanatory diagram showing the positioning state of the object to be welded, Fig. 6 is a sectional view taken along the line AA in Fig. 3 after being pressed by a sticking device, and Fig. 7 is a covering Plan view of paper welding state, No. 8
Figure is a plan view of a semi-finished fan, Figure 9 is an external view of coated paper with concave lines as much as possible for temporary folds, Figure 10 is an illustration of finish folding of coated paper, and Figure 11 is of finished product. Fig. 12 is a plan view of the fan, Fig. 12 is an explanatory view of the rib (22), and Fig. 13 is an extension piece (2
1) is an explanatory view of a fixing portion between the ribs (22), FIG. 14 is an explanatory view of an apparatus used for carrying out the present invention, and FIGS. 15 to 17 show a second embodiment of the manufacturing method of the present invention. FIG. 15 is an explanatory view, FIG. 15 is a plan view of the bone fragment connecting body (1), FIGS. 16 and 17 are explanatory views of a hit for supporting and fixing the bone fragment connecting body of FIG. 15, and FIG. Is an explanatory view of a conventional manufacturing method, and FIG. 19 is a sectional view taken along the line DD in FIG. 18, in which (1) ... Bone piece connection body (2), (2) ... Coated paper (10 ) ， (10) …… Bone fragments (11) ， (11) …… Hawk hole

Claims (1)

[Claims] 1. Bone fragments (10), (10) having a hole (11) for kaname formed at the end on the side where the kaname is attached are radially arranged at equal angular intervals and the bone fragments (10), ( A step of forming a bone fragment connecting body (1) in which end portions of 10) are connected and integrated by a connecting piece with a synthetic resin, and a covering paper (2) on both front and back surfaces of a required area of the bone piece connecting body (1). , (2) are overlapped to weld or pressure-bond the contacting portions of the coated papers with each other, a step of cutting the connecting piece at the same time as or after the welding or adhering step, and cutting of the connecting piece After that, each bone piece (10) is covered with paper (2) so that the holes (11), (11) for kaname provided in the bone piece are aligned with each other.
A method of manufacturing a fan, comprising the step of moving the fan relative to (2) by a predetermined amount.