JP2014042627A - Fan - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fan which has a strong opening/closing mechanism and cab be easily assembled and manufactured at a low cost.SOLUTION: A fan includes a plurality of long flat plates and a string which restrains movement of the flat plates, and the flat plates and the string are integrally molded by a resin. In such a configuration, since the plurality of long flat plates and the string which restrains the movement of the flat plates are integrally molded by the resin, a connection part between adjacent flat plates is not weakened and connection is not impaired. Since the fan can be manufactured by integral molding by the resin in a resin mold for molding the fan, an assembly process can be simplified, and the fan can be quickly provided at a low cost.

Description

  The present invention relates to a fan.

  Japanese Patent Application Laid-Open No. 10-304918 describes a fan in which resin plates are connected to each other at a connecting portion and can be opened and closed at the connecting portion.

Japanese Patent Laid-Open No. 10-304918

  An object of this invention is to provide the fan which can simplify a manufacturing process.

  The fan of claim 1 has a plurality of long flat plates made of resin, a shaft provided so as to pass through one end portion in the longitudinal direction of the plurality of stacked flat plates, and the flat plate rotated about the shaft. A wire rod that restrains the movement of the adjacent flat plates so that no gap is generated between the other end portions of the flat plates adjacent to each other, and the flat plate and the wire rod are integrally formed of the resin. It is characterized by.

  The fan of claim 2 is the fan of claim 1, wherein one of the plurality of flat plates and the shaft are integrally formed.

  The fan of claim 3 is the fan of claim 1 or 2, wherein the resin is integrally formed around the wire.

  The fan of claim 4 is the fan of claim 1 or 2, wherein the wire is a string member made of the resin.

  The fan of claim 1 can simplify the manufacturing process as compared with a case where a plurality of long flat plates and a wire rod that restrains the movement of the flat plates are not integrally formed with resin in the mold.

  The fan of claim 2 can simplify the manufacturing process as compared with the case where the shaft is not integrally formed on the flat plate.

  The fan of claim 3 can increase the strength of the wire as compared with the case where the resin is not integrally formed around the wire.

  The fan of Claim 4 can simplify a manufacturing process compared with the case where a wire is not comprised from resin.

The top view which shows the state which opened the fan based on this invention (Example 1) FIG. 1 is a partially enlarged view of the portion A (the peripheral portion of the connecting portion 5) (Example 1). Schematic sectional view of an injection mold for molding a fan according to the present invention (Example 1) NN sectional drawing which showed the injection mold in FIG. 3 (Example 1)

  The present invention will be described with reference to the drawings. In addition, this invention is not limited at all by the following examples.

An embodiment according to the present invention will be described with reference to FIGS.
In the first embodiment, a general fan-shaped fan will be described as an example.
3 and 4 only show the main part of the injection mold for the sake of simplicity, and the other parts are not shown.

[Folding fan]
As shown in FIG. 1, the fan 1 includes a plurality of (for example, 16) long flat plates 2 made of resin and a shaft 4 provided so as to pass through one end portion 41 in the longitudinal direction of the plurality of stacked flat plates 2. And a wire rod 3 that restrains the movement of the adjacent flat plates 2 so that no gap is generated between the other end portions 42 of the adjacent flat plates 2 when the flat plate 2 is rotated around the axis 4. I have. And the flat plate 2 and the wire 3 are integrally molded with resin.
Although the material of the wire 3 is not limited, it is necessary to select the material of the wire 3 higher than the melting point of the resin constituting the flat plate 3 because the wire 3 and the flat plate 3 are integrally formed. .

The axis | shaft 4 is provided so that the one end part 41 of the flat plate 2 accumulated in multiple numbers may be penetrated.
That is, a through hole is formed in advance at a predetermined position of the one end portion 41 of the flat plate 2, and the shaft 4 made of metal or the like passes through all the through holes that communicate with each other when all the flat plates 2 are stacked. Inserted into. Thereafter, the flat plate 2 does not come off from the shaft 4 by caulking both ends of the shaft 4.
With this configuration, the plurality of flat plates 2 can be rotated clockwise or counterclockwise about the shaft 4.

  The other end portions 42 of the plurality of flat plates 2 are connected to the wire 3 as shown in FIGS. 1 and 2. The length of the wire 3 is set to a length that does not cause a gap between the other end portions 42 of the adjacent flat plates 2. For this reason, when the plurality of flat plates 2 are rotated around the shaft 4 and opened, the movement of the other end portion 42 of the flat plate 2 is restricted by the wire 3 so that it can only rotate at a predetermined angle, and has a fan shape. Is to be formed.

[Injection mold]
Next, an injection mold for molding the fan 1 according to the present invention will be described.
As shown in FIGS. 3 and 4, an injection mold 30 for molding the fan 1 according to the present invention is a cavity for integrally molding (integral molding) the flat plate 2 and the wire 3 of the fan 1. The fixed side mold 31 provided with 38 and the movable side mold 32 are configured to be split by a parting line surface 39.

(Nested)
A nesting (fixed-side nesting) 33 is fixed to the fixed mold 31 and a nesting (movable-side nesting) 34 is fixed to the movable mold 32, and the fixed mold 31 and the movable mold 32 are clamped. As a result, the insert 33 and the insert 34 come into contact with each other, and a cavity 38 for integrally forming the flat plate 2 and the wire 3 is formed.

  In the first embodiment, since the number of the flat plates 2 is 16, the cavity 38 includes 16 large cavities 43 for forming the 16 flat plates 2 and the flat plate 2 formed between the small cavities 43. 15 small cavities 44 into which one wire 3 for connecting the end portions 42 to each other is placed in advance. The size (diameter) of the small cavity 44 is substantially the same as the diameter of the wire 3, and the molten resin injected into the large cavity 43 is difficult to flow into the small cavity 44.

[Folding fan manufacturing method]
Next, a method for manufacturing a fan using the injection mold 30 will be described.

(Molding material)
In Example 1, polypropylene (polypropylene), which is a thermoplastic resin, was used as a resin (pellet) that is a molding material for a fan.

(Production method)
First, the injection mold 30 shown in FIGS. 3 and 4 is prepared, and the wire 3 is set in the fifteen small cavities 44 of the insert 33 of the fixed mold 31 so as not to sag straightly. In Example 1, nylon was used as the material for the wire 3.

  Next, the movable mold 32 of the injection mold 30 is moved to the fixed mold 31 and clamped, and the wire 3 is held by the insert 33 and the small cavity 44 of the insert 34. Then, molten resin is injected into the injection mold 30 from a resin injection nozzle (not shown) of an injection molding apparatus (not shown). The molten resin is injected into the injection cavity 38 through the sprue 35 of the sprue bush, the runner 36 and the gate 37 provided in the fixed mold 4.

  This point will be described in more detail. The molten resin is injected from the gate 37 into the first large cavity 43, fills the first large cavity 43, and enters the first large cavity 43 via the flow path 45 that allows the large cavities 43 to communicate with each other. It flows into the adjacent second large cavity 43.

  Similarly, the molten resin flowing into the second large cavity 43 is injected into the second large cavity 43, fills the second large cavity 43, and communicates with the second large cavity 43. It flows from the passage 45 into the third large cavity 43 adjacent to the second large cavity 43. In this way, the molten resin fills the 16 large cavities 43 sequentially from the first large cavity 43 to the 16th large cavity 43 through the flow path 45.

  The channel 45 is formed in the large cavity 43 on the one end 41 side of the flat plate 2 formed by the large cavity 43. The small cavity 44 is formed in the large cavity 43 on the side of the other end portion 42 of the flat plate 2 formed by the large cavity 43.

  After the cavity 38 is filled with the molten resin, the molten resin is cured (cooled and solidified), whereby the 16 flat plates 2 and the single wire 3 that connects the 16 flat plates 2 to each other are integrally formed. Is done.

  Thereafter, the mold is opened, all the flat plates 2 and the wire rods 3 are taken out from the mold 30, all the flat plates 2 are overlapped, and the shaft 4 (for example, a copper pin) is inserted into the through hole 7 formed at one end thereof. insert. The both ends of the shaft 4 are caulked so as not to come off the flat plate 2.

The fan 1 shown in FIG. 1 can be manufactured by the above process.
The finished dimensions of the fan 1 of Example 1 were such that the longitudinal dimension of the flat plate 2 was 200 mm, the width dimension was 10 mm, and the thickness dimension was 0.8 mm. Moreover, the wire 4 was thin and flat string-like, the width dimension was 5 mm, the thickness dimension was 0.3 mm, and the length of the space | interval of the wire 4 which connects the adjacent flat plates 2 was 9 mm.
In Example 1, the wire 4 was passed through the center in the width direction at the other end of each flat plate 2.

Another embodiment of the present invention will be described.
In order to make the description easy to understand, only differences from the first embodiment will be described, and the same portions are denoted by the same reference numerals and the description thereof will be omitted.

  The difference between the second embodiment and the first embodiment is that in the first embodiment, the shaft 4 is attached to one end portion of the flat plate 2 of the injection molded product after the injection molded product is taken out from the injection mold 30. On the other hand, the second embodiment is different in that the shaft 4 is integrally molded with resin and one of the plurality of flat plates 2 in the mold.

  More specifically, for example, among a plurality (16 in the first embodiment) of the flat plates 2, the flat plate 2 (here, the flat plate) located at the end of the injection mold 30 (at the end of the fan 1). In order to integrally form the shaft 4 made of the same resin as that constituting the flat plate 2 at one end of the flat plate 201, a cylindrical or columnar shaft 4 is formed in a large cavity for molding the flat plate 201 of the mold 30. A recess for forming is formed.

  The shaft 4 is formed so as to protrude from one surface of the flat plate 201, and the length thereof is equal to or greater than the depth of 15 through-holes formed by overlapping the other 15 flat plates 2. It has become. In other words, even after the shaft 4 is inserted into the through holes of all the flat plates 2 other than the flat plate 201 (15 in the first embodiment), the tip of the shaft 4 is the surface of the last inserted flat plate 2. It is set to the length that protrudes from. For this reason, by heating the end portion of the protruding shaft 4 lastly to expand the diameter, all the flat plates 4 can rotate around the shaft 4 and all the flat plates 2 cannot be removed from the shaft 4. Can be configured.

  The flat plate 2 that integrally molds the shaft 4 made of resin may be any flat plate 2. For example, the shaft 4 may not be integrally formed with the flat plate 201 but may be integrally formed with the flat plate 202 adjacent thereto. In this case, a through hole is formed in one end of the flat plate 201 as in the case of flat plates other than the flat plate 202. Then, cylindrical or columnar protrusions constituting the shaft 4 are formed on both surfaces of one end of the flat plate 202. The length of the protrusion protruding from one surface of the flat plate 202 is such a length that, when inserted into the through hole of the flat plate 201, the tip portion protrudes and the tip portion can be melted to form the enlarged diameter portion. . Further, the length of the protrusion protruding from the other surface of the flat plate 202 is such that when inserted into the through hole of the flat plate 2 other than the flat plates 201 and 202, the tip portion protrudes and the tip portion is melted to expand the diameter. It is the length which can form a part. Thus, the shaft 4 may be formed on any flat plate 2.

  The shaft 4 is made of a thermoplastic resin, a thermosetting resin, a metal or glass having a melting point higher than that of the resin constituting the flat plate 2, and the shaft 4 is inserted into the recess of the mold 30 described above in advance. One piece of the flat plate 2 and the shaft 4 may be integrally formed by insert molding.

  The above-described embodiments have been illustrated for the purpose of explanation, and the present invention is not limited thereto. The present invention can be recognized by those skilled in the art from the scope of the claims and the description. Modifications, deletions, and additions are possible as long as they are not contrary to the technical idea of the above.

  For example, the diameter of the small cavity may be larger than the diameter of the wire 3 so that the resin adheres around the one wire 3 set in the cavity in advance. In this case, the molten resin injected into the large cavity along the wire inserted (inserted) in advance flows into the small cavity. Thereby, the connection part 5 which connects the flat plate 2 and the wire 3 is reinforced, and the durable fan 1 can be shape | molded.

Further, the wire 3 itself may be formed of a resin constituting the flat plate 2 without inserting the wire 3 into the cavity in advance. That is, since the wire 3 is not inserted in the mold 30 in advance, the molten resin injected into the large cavity flows into the small cavity as it is. For this reason, the flat plate 2 formed by adjacent large cavities is connected by a string member made of resin formed by a small cavity.
As described above, the fan molded according to the present invention does not weaken the connecting portion between adjacent flat plates, does not impair the connection, can simplify the assembly process, and can provide the fan quickly and inexpensively. it can.

  In the first embodiment described above, the opening and closing directions of the fixed side mold and the movable side mold may be the vertical direction or the horizontal direction.

  Further, the surface of the flat plate 2 may be molded to be decorated, or a decorative item such as metal or jewelry may be inserted. As decoration, in addition to various illustrations (designs) such as animals and landscapes, various characters such as company logo marks, domains, brand names, catchphrases, etc. can be adopted and can be used for advertising purposes. In addition, aromatic materials such as tourmaline fine particles having a negative ion effect, bamboo charcoal deodorant material, and white snake may be used as decorations.

  In addition, the wire inserted into the mold may be a thread made of cotton, silk, nylon, etc., or a wire made of metal or the like, or a molding method in which the wire is removed from the fan after molding. no problem.

  Moreover, although the connection part 5 which connects the flat plate 2 illustrated in Example 1 and the string member 4 illustrated forming in the end of the flat plate 2, if it can be connected and it can open and rotate in a fan shape, it will be a problem. do not do. The exemplified positions are preferable because the function of the original fan can be exhibited.

  Moreover, in the dimension of the said flat plate, in Example 1, although the thickness dimension was 0.8 mm, if it is 0.1 mm or more, the same effect of an Example can be produced and it is desirable. Moreover, in the dimension of the said string member, in Example 1, although the thickness dimension was 0.3 mm, if it is in the range of 0.1 mm or more and 50 mm or less, the same effect as the example can be achieved, desirable.

  Moreover, although the material illustrated in Example 1 illustrated the pin of copper, corrosion of the surface of a pin can be prevented by using SUS (abbreviation of stainless steel "Stainless steel") with a high anticorrosion effect. . In the case of a material mainly composed of iron, the corrosion problem can be solved by applying a surface treatment such as nickel plating.

  In addition, when the pin requires bending strength or the like, when aluminum or copper alone is insufficient, the pin has a high strength, for example, a sandwich structure of SUS and an alloy of iron or copper, or a two-layer structure. You may make such a complex.

  In the present invention, polypropylene which is a thermoplastic resin is exemplified, but various other thermoplastic resins such as polystyrene, thermosetting resins, thermoplastic elastomers, and the like can be used together. Thermosetting resins are characterized by high heat resistance and somewhat higher rigidity than the thermoplastic resins described below, while thermoplastic resins are mass-produced as represented by injection molding. There is a feature suitable for.

  Incidentally, the thermosetting resin is not limited as long as it is a thermosetting resin generally used for molding. Examples include epoxy resin diallyl phthalate prepolymer, diallyl phthalate resin, silicone resin, phenol resin, unsaturated polyester resin, polyimide resin, polyurethane resin, melamine resin, and urea resin.

  The thermoplastic resin is not particularly limited as long as it is a thermoplastic resin generally used for molding. For example, polystyrene resin (PS), high impact polystyrene resin (HIPS), styrene-maleic acid copolymer resin, butadiene-styrene copolymer resin, acrylic nitrilo / styrene copolymer resin (AS), acrylic nitrilo / butadiene / styrene. Styrenic resin represented by copolymer resin (ABS), polyphenylene ether resin (PPE), modified polyphenylene ether resin, and modified polyphenylene oxide resin {PP0 (E)}, polyethylene (PE), chlorinated polyethylene, ethylene- Olefin resins such as α-olefin copolymer resin, modified polyolefin, transparent polyolefin, 6-nylon (PA6), 6,6-nylon (PA66), reinforced polyamide, PA-MCX, amorphous polyamide, aromatic polyamide Amide resins such as aramid), polyethylene terephthalate (PET), polyester resins typified by polyethylene terephthalate (PET), vinyl chloride resin (PVC), polyvinyl acetate resin (PVAc), acrylic modified polychlorinated resin Vinyl-based resins typified by vinyl, cellulose acetate (CA), cellulose acetate butyrate (CAB), cellulose-based resins (cellulose derivatives) typified by ethyl cellulose, celluloid cellophane, and other polymethacrylates (PMMA, acrylic resin, methacrylic) Resin), polyvinylidene chloride resin (PVDC), polytetrafluoroethylene (PTFE), ethylene polytetrafluoroethylene copolymer resin (ETFE), and other fluororesins, ethylene vinyl acetate copolymer resin (EVA), eye Onomer (IO), modified polycarbonate, polycarbonate resin (PC), polyarylate (PAR, U polymer), polysulfone (PSU), polyethersulfone (PES), polythioethersulfone (PTES), chlorinated polyether, thermoplastic Polyimide (TPI), polyamino bismaleimide (PABM), polyketone, polyamideimide (PAI), polyetheretherketone (PEEK), polyetherketone (PEK), thermoplastic polyurethane (PUR), polyvinyl acetal, polyvinyl alcohol, polychlorinated Vinylidene, polyethernitrile (PECN), polyphenylene sulfide (PPS), polyetherimide (PEI), allyl resin, ethylene-vinyl acetate copolymer resin, ethylene-vinyl chloride copolymer Copolymer resin, furan resin, methacryl-styrene copolymer resin, nitrile resin, xylene resin, polymethylpentene, polyallylsulfone (PASF), polybenzimidazole (PBI), polybutadiene resin, polybutylene, aromatic polyester, olefin vinyl alcohol Polymer resin, petroleum resin, polyoxymethylene (POM), polyacetal (POM), liquid crystal polyester (LCP), styrene-butadiene (SBC), polyolefin (TPO), urethane (TPU), polyester (TPEE) Elastomers represented by polyamide-based (TPAE), 1,2-polybutadiene (PB), polyvinyl chloride-based (TPVC), 1,2-polybutadiene, trans 1,4-polyisoprene, chlorinated polyethylene, etc. Resin PPE / PS, PPE / HIPS, PPE / PA, PC / ABS, PC / HIPS, PPE / PA, which have been modified by properties such as render, copolymerization, and graft polymerization. Examples thereof include polymer alloys (blend polymers) such as PES / LCP, fillers such as glass fibers, carbon fibers and talc, and composite materials reinforced with reinforcing agents.

  The styrenic resin is a resin containing at least 25% by weight or more of a styrenic monomer in a polymer, and is a homopolymer of a styrenic monomer or two or more kinds of styrenic monomers. A polymer, a copolymer of the styrenic monomer and one or more of other monomers copolymerizable with the styrenic monomer, and the diene rubber with the styrenic monomer. A graft copolymer obtained by graft polymerization of one kind or two or more kinds, a micro blend or a polymer blend of the styrene resin and the diene rubber, and the like are included.

  Typical examples of the styrenic resin include polystyrene (PS) which is a styrene homopolymer, a blend of a rubbery polymer obtained by graft-polymerizing styrene to the diene rubber, acrylic rubber and olefin rubber and polystyrene. High impact polystyrene (HIPS), which is a polymer, is a rubber material added for the purpose of imparting mechanical properties to the resin. The rubber material added for the purpose of imparting is olefin rubber and / or acrylic rubber, or mono-based materials of these saturated rubbers), acrylonitrile / styrene copolymer (AS), styrene / butadiene copolymer, styrene・ Α-methylstyrene copolymer, styrene / maleic anhydride copolymer, styrene / methyl Graft rubber obtained by graft polymerization of acrylonitrile monomer and styrene monomer to diene rubber, acrylic rubber, and olefin rubber to tacrylate copolymer, styrene / ethylene copolymer, styrene / ethylene / propylene / butadiene copolymer Blend polymer of polymer and acrylonitrile / styrene copolymer, ACS, which is a mixed resin of chlorinated polyethylene and acrylonitrile / styrene copolymer, Acrylonitrile containing olefin rubber by graft polymerization of acrylonitrile and styrene to olefin rubber AES (ABS), which is a mixed resin of terpolymer of styrene and styrene and acrylonitrile / styrene copolymer, and acrylic rubber-containing acrylo by graft polymerization of acrylonitrile and styrene to acrylic rubber AAS (AAS, ABS), which is a mixed resin of a terpolymer of tolyl and styrene and an acrylonitrile / styrene copolymer, an acrylonitrile / dimethylsiloxane / styrene copolymer and an acrylonitrile / butadiene / styrene copolymer resin There is ASIS which is a mixed resin. Here, ABS is a rubber material added for the purpose of imparting mechanical properties to the resin, and butadiene rubber or butadiene rubber as a main component. ABS is a rubber material added for the purpose of imparting mechanical properties to the resin. Means an olefin rubber and an acrylic rubber, or those having a saturated rubber as a main component.

A typical example of the polyphenylene ether (PPE) resin is poly (2,6-dimethyl-1,4-phenylene ether) obtained by oxidative polymerization of 2,6-xylenol with a copper catalyst. Further, a copolymer of 2,6-dimethyl-1,4-phenylene ether and 2,3,6-trimethyl-1,4-phenylene ether, 2,6-dimethylphenol and 2,3,6-trimethylphenol There are copolymers of In addition, the PPE resin modified with a styrene resin and / or an amide resin is also included in the modified PPE resin and the modified PPe resin of the present invention.
The modified PPE refers to the polymer alloy / polymer blend of HIPS, ABS, and PPE, and the modified PPE refers to the polymer alloy / polymer blend of HIPS, ABS, and PPE.

  The polycarbonate resin (PC resin) can be used alone as a molding (mold) thermoplastic resin, but as a material mainly mixed with the styrene resin or PPE resin to form a polymer alloy / polymer blend. used. There is no particular limitation as long as it is a polycarbonate derived from an aromatic dihydroxy compound.

  Examples of the aromatic dihydroxy compound include 2,2-bis (4-hydroxyphenyl) propane (also referred to as bisphenol A), tetramethylbisphenol A, tetrabromobisphenol A, and bis (4-hydroxyphenyl) -p-diisopropyl. Benzene, hydroquinone, resorcinol, 4,4′-dihydroxydiphenyl, etc. can be used, but bis (4-hydroxyphenyl) alkane dihydroxy compounds are usually selected, and bisphenol A or bisphenol A and other fragrances are particularly preferred. Combinations with group dihydroxy compounds are preferred.

  The polyolefin resin is a resin obtained by polymerizing one or more of α-olefin using a radical initiator, a metal oxide catalyst, a Ziegler-Natta catalyst, a Kaminsky catalyst, etc. Two or more kinds of the resins may be mixed.

  The polyolefin resin may be copolymerized with another monomer copolymerizable with the α-olefin. Typical examples are polyethylene, polypropylene, ethylene-vinyl acetate copolymer, ethylene-acrylic acid copolymer, and the like. Although it is used as a molding material singly or in the form of a mixture of two or more, it may be further mixed with other thermoplastic resins such as the styrene resin, for example, PS, HIPS, AS, ABS resin, PPE resin, etc. .

  The α-olefin is a linear, branched or cyclic olefin having a polymerizable double bond at the α-position, and usually has 2 to 8 carbon atoms. Specific examples of α-olefins include ethylene and propylene.

  The polyarylate is a resin having high heat resistance and flame retardancy obtained by polymerization of a bisphenol compound and a phthalic acid compound represented by terephthalic acid and isophthalic acid. Hydroxyphenyl) propane (also referred to as bisphenol A), tetramethylbisphenol A, tetrabromobisphenol A, bis (4-hydroxyphenyl) -p-diisopropylbenzene, hydroquinone, resorcinol, 4,4′-dihydroxydiphenyl, etc. are used. However, bis (4-hydroxyphenyl) alkane dihydroxy compounds are usually selected, and bisphenol A or a combination of bisphenol A and other aromatic dihydroxy compounds is particularly preferred.

  Representative examples of the bisphenol include bis (3,5-dimethyl-4-hydroxyphenyl) methane, bis (3,5-diethyl-4-hydroxyphenyl) methane, and bis (3,5-dibromo-4-hydroxy). Phenyl) methane, 1,1-bis (3,5-dimethyl-4-hydroxyphenyl) ethane, 1,1-bis (3,5-diethyl-4-hydroxyphenyl) ethane, bis (3,5-dibromo- 4-hydroxyphenyl) ethane, 1,1-bis (3,5-dimethyl-4-hydroxyphenyl) propane, 2,2-bis (3,5-dimethyl-4-hydroxyphenyl) propane, 1,1-bis (3,5-diethyl-4-hydroxyphenyl) propane, 2,2-bis (3,5-diethyl-4-hydroxyphenyl) propane, 1,1-bis 3,5-dibromo-4-hydroxyphenyl) propane, 2,2-bis (3,5-dibromo-4-hydroxyphenyl) propane, 1,1-bis (3,5-dimethyl-4-hydroxyphenyl) butane 2,2-bis (3,5-dimethyl-4-hydroxyphenyl) butane, 1,1-bis (3,5-diethyl-4-hydroxyphenyl) butane, 2,2-bis (3,5-diethyl) -4-hydroxyphenyl) butane, 1,1-bis (3,5-dibromo-4-hydroxyphenyl) butane, 2,2-bis (3,5-dibromo-4-hydroxyphenyl) butane, 1,1- Bis (3,5-dimethyl-4-hydroxyphenyl) cyclohexane, 1,1-bis (3,5-diethyl-4-hydroxyphenyl) cyclohexane, 1,1-bis (3 -Dibromo-4-hydroxyphenyl) cyclohexane, bis (3,5-dimethyl-4-hydroxyphenyl) phenylmethane, bis (3,5-diethyl-4-hydroxyphenyl) phenylmethane, bis (3,5-dibromo- 4-hydroxyphenyl) phenylmethane, 1,1-bis (3,5-dimethyl-4-hydroxyphenyl) -1-phenylethane, 1,1-bis (3,5-diethyl-4-hydroxyphenyl) -1 -Phenylethane, 1,1-bis (3,5-dibromo-4-hydroxyphenyl) -1-phenylethane, bis (3,5-dimethyl-4-hydroxy) diphenylmethane, bis (3,5-diethyl-4 -Hydroxy) diphenylmethane, bis (3,5-dibromo-4-hydroxy) diphenylmethane, bis (3,5- Dimethyl-4-hydroxyphenyl) ether, bis (3,5-diethyl-4-hydroxyphenyl) ether, bis (3,5-dibromo-4-hydroxyphenyl) ether, bis (3,5-dimethyl-4-hydroxy) Phenyl) sulfide, bis (3,5-diethyl-4-hydroxyphenyl) sulfide, bis (3,5-dibromo-4-hydroxyphenyl) sulfide, bis (3,5-dimethyl-4-hydroxyphenyl) sulfone, bis (3,5-diethyl-4-hydroxyphenyl) sulfone, bis (3,5-dibromo-4-hydroxyphenyl) sulfone, bis (3,5-dimethyl-4-hydroxyphenyl) ketone, bis (3,5- Diethyl-4-hydroxyphenyl) ketone, bis (3,5-dibromo-4-hydro Shifeniru) and ketone, and the like. Among these, bis (3,5-dimethyl-4-hydroxyphenyl) methane, 2,2-bis (3,5-dimethyl-4-hydroxyphenyl) propane, 1,1-bis (3,5- Dimethyl-4-hydroxyphenyl) cyclohexane, 1,1-bis (3,5-dimethyl-4-hydroxyphenyl) -1-phenylethane, bis (3,5-dimethyl-4-hydroxyphenyl) phenylmethane, bis ( 3,5-dimethyl-4-hydroxyphenyl) sulfone, bis (3,5-dimethyl-4-hydroxyphenyl) ether, bis (3,5-dimethyl-4-hydroxyphenyl) ketone and the like. Among the bisphenols, polyarylate using bisphenol substituted with halogen is excellent in flame retardancy.

  A part of bisphenol may be replaced with other bisphenols as long as the characteristics are not substantially impaired. Such bisphenols include hydroquinone, resorcinol, dihydroxybiphenyl, bis (hydroxyphenyl) alkane, bis (hydroxyphenyl) cycloalkane, bis (hydroxyphenyl) sulfide, bis (hydroxyphenyl) sulfone, bis (hydroxyphenyl) ether, Bis (hydroxyphenyl) ketones and their nuclear halides are mentioned.

  The ratio of the residues of terephthalic acid and isophthalic acid is not particularly limited, and the constituent components may be used alone or in combination depending on the purpose. In that case, a polyarylate having higher heat resistance is obtained as the terephthalic acid residue is increased.

  Polyarylate containing an amount exceeding 10 mol% of the residue of isophthalic acid has improved toughness. Therefore, when used as an engineering plastic, it is preferable to determine the ratio of terephthalic acid and isophthalic acid residues according to the required properties.

  In the polyarylate, a part of terephthalic acid and isophthalic acid may be replaced with other dicarboxylic acids as long as the properties are not substantially impaired. Examples of the dicarboxylic acid include alicyclic such as naphthalenedicarboxylic acid, bis (p-carboxyphenyl) alkane, aromatic dicarboxylic acid such as 4,4′-dicarboxydiphenyl ether, cyclohexanedicarboxylic acid, adipic acid, sebacic acid, and glutaric acid. Alternatively, aliphatic dicarboxylic acids and halides thereof can be used.

  Examples of the acid halides of terephthalic acid and isophthalic acid include terephthalic acid chloride, terephthalic acid bromide, isophthalic acid chloride, isophthalic acid bromide, etc., and hydrophobicity used to dissolve acid halides of terephthalic acid and isophthalic acid As the organic solvent, those which are incompatible with water and dissolve the produced polyarylate are preferable. However, in some cases, an organic solvent that does not dissolve the generated polyarylate can be used. In this case, when the polyarylate has a molecular weight of a certain level or more, it precipitates out of the system.

  It is possible to add pigments, heat stabilizers, antioxidants, weathering agents, flame retardants, plasticizers, mold release agents, reinforcing materials and the like to the polyarylate as long as the properties are not significantly impaired. These additives may be added at the time of polymerization, and polyarylate may be added after the isolation. Examples of the heat stabilizer and antioxidant include hindered phenols, phosphorus compounds, hindered amines, sulfur compounds, copper compounds, and mixtures thereof, and phosphorus compounds are particularly effective. Examples of such phosphorus compounds include phosphorous acid, phosphite, orthophosphoric acid, orthophosphoric acid ester and the like. The reinforcing materials include clay, talc, calcium carbonate, zinc carbonate, wollastonite, silica, alumina, magnesium oxide, calcium silicate, asbestos, sodium aluminate, calcium aluminate, sodium aluminosilicate, magnesium silicate, water Aluminum oxide, calcium hydroxide, barium sulfate, potassium light vane, sodium light van, iron light van, glass balloon, carbon black, zinc oxide, antimony trioxide, boric acid, borax, zinc borate, zeolite, hydrotalcide, metal Examples thereof include fiber, metal whisker, ceramic whisker, potassium titanate, ticker boron, mica, graphite, and glass fiber.

  Furthermore, it is also possible to mix | blend another polymer with a polyarylate as needed. Examples of the polymer include polybutadiene, butylene-styrene copolymer, acrylic rubber, ethylene-propylene copolymer, EPDM, natural rubber, chlorinated butyl rubber, chlorinated polyethylene, and other rubbery copolymers, styrene-butadiene blocks. Elastomers such as copolymers, styrene-butadiene block copolymers, butadiene-styrene radial teleblock copolymers, styrene-maleic anhydride copolymers, styrene-phenylmaleimide copolymers, nylon 6, nylon 66, nylon 46 , Polyamides such as nylon 12 and nylon 610, polypropylene, butadiene-acrylonitrile copolymer, polyvinyl chloride, PET, PBT, polyacetal, polyvinylidene fluoride, polysulfone, PPS, polyethersulfone, phenol Shi resin, PPO, PMMA, polyether ketones, and polycarbonate.

  The resin that can be used in the present invention has been described in detail above. However, two or more of the thermoplastic resins may be mixed into a polymer blend or a polymer alloy.

  The polymer blend or polymer alloy is produced, for example, by screw kneading in an extruder.

  Furthermore, in order to improve impact resistance, the thermoplastic resin includes the diene rubber, olefin rubber, acrylic rubber, etc., such as NR, BR, SBR, STR, IR, CR, CBR, IBR, IBBR, Rubbers such as IIR, acrylic rubber, polysulfide rubber, urethane rubber, polyether rubber, epichlorohydrin rubber, chlorobutyl rubber, hydrogenated nitrile rubber, fluorine rubber, ethylene-vinyl acetate copolymer, acrylic resin, ethylene-ethyl acrylate Other thermoplastic resins such as a copolymer, a vinyl resin typified by vinyl chloride, and polynorborinene may be mixed.

  Furthermore, in order to improve the impact resistance of the thermoplastic resin, a thermoplastic elastomer (TPE) may be added. The thermoplastic elastomer has properties of vulcanized rubber at room temperature but is thermoplastic and can be thermoformed, and is composed of a hard segment and a soft segment.

  Examples of the TPE include urethane elastomers, styrene elastomers, vinyl elastomers, and ester elastomers.

  The thermosetting resin or thermoplastic resin is flame retardant by adding a flame retardant. Flame retardancy of ABS, ABS, and HIPS, which are thermoplastic resins, can be achieved by adding a flame retardant (material) in addition to a polymer alloy of PPE resin and polycarbonate resin. Since polyarylate is originally a flame retardant resin, it can be easily made flame retardant by adding a flame retardant.

  Typical examples of flame retardants include antimony trioxide, antimony flame retardant, antimony pentoxide, sodium antimonate, magnesium hydroxide, aluminum hydroxide, zinc borate, guanidine guanidine guanidine phosphate, and guanidine phosphate. , Phosphoric acid guanylurea, zirconium flame retardant, tin compound, molybdenum compound, red phosphorus, etc., phosphoric acid ester, and phosphorus compound, tris (chloroethyl) phosphate, tris (monochloropropyl) phosphate, tris-β-chloropropyl phosphate, tris (Dibromophenyl) phosphate, tris (tribromoneopentyl) phosphate, dimethylmethyl phosphate, tris (dichloropropyl) phosphate, triallyl phosphate, tris (3-hydroxypropyl) phosphate Finoxide, tris (tribromophenyl) phosphate, tetrakis (2-chloroethyl) ethylene diphosphate, glycidyl-α-methyl-β-di (butoxy) phosphenyl propionate, dibutylhydroxymethylphosphonate, di (butoxy) Phosphinyl propyl anide, dimethyl methyl phosphonate, tris (2-chloroethyl) orthophosphate, aromatic condensed phosphate, halogen-containing condensed organic phosphate, ethylene bis-tris (2-cyanoethyl) phosphonium bromide, Gee (poly Oxyethylene) -hydroxymethyl phosphonate, phosphorus / chlorine-containing oligomer, ammonium polyphosphate, β-chloroethyl acid phosphate, β-chloropropyl phosphate, butyl pyrophosphate DOO, butyl acid phosphate, butoxyethyl acid phosphate, 2-ethylhexyl acid phosphate, melamine phosphate, phosphorus - chlorine, organic phosphorus, phosphate-based, there is a red phosphorus-based flame retardants.

  Typical examples of the chlorinated flame retardant include chlorinated paraffin, chlorinated polyolefin, chlorinated polyethylene, perchlorocyclopentadecane, and a mixture of chlorinated paraffin and anamottin trioxide.

Typical brominated flame retardants are brominated epoxy, brominated polycarbonate, hexabromobenzene, decabromodiphenyl oxide, polydibromophenylene oxide, bis (tribromophenoxy) ethane, ethylene bis-dibromonorbornane dicarboximide , Ethylenebis-tetrabromophthalimide, dibromoethyl-dibromocyclohexane, dipromoneopentyl glycol, 2,4,6-tribromophenol, tribromophenol allyl ether, tetrabromo-bisphenol A, and tetrabromo-bisphenol A derivatives, tetrabromo- Bisphenol S, tetradecabromo diphenoxybenzene, tris- (2,3-dibromopropyl-1) -isosanurate, 2,2-bis (4-hydroxy-3,5 di Lomophenyl) propane, 2,2-bis (4-hydroxyethoxy-3,5-dibromophenyl) propane, poly (pentabromobenzyl acrylate), tribromostyrene, pentabromophenol, brominated polyethylene, dibromoneopentyl glycol tetra Carbonate, bis (tribromophenyl) fumaranide, N-methylhexabromodiphenylamine, halogen-containing polyphosphate, aromatic bromine brominated epoxy resin, brominated polystyrene, brominated flame retardant (trade name: Switzerland, Sand Sandoflam 5071 etc.) Pentabromotoluene, pentabromophenyl oxide, pentabromophenyl oxide and phosphate ester, mixture of stabilizers, hexabromocyclododecane, hexabromophenyl ether, hexabu Mo phenyl ether, hexabromodiphenyl ether, octabromodiphenyl oxide, there are magnesium hydroxide and the like.

  Typical examples of reactive flame retardants are: Creinic anhydride, tetrabromophthalic anhydride, tetrabromo-bisphenol A, diethoxy-bis- (2-hydroxyethyl) -aminoethyl phosphate, dibromo-cresyl-glycidyl ether, dibromophenol , Dibromocresol, tribromophenol, phenyl phosphonic acid, phenyl phosphonic acid dichloride, diethyl phenyl phosphonate, diallyl chlorendate, reaction flame retardant polyol, di (isopropyl) N, N-bis (2-hydroxyethyl) aminomethyl -Phosphonate, dibutylbis (2-hydroxypropyl) pyrophosphate, diethylphenyl phosphonate and dimethylphenyl phosphonate. In addition, there are silicone resin, silicone oil, fluorine resin, fluorine-based oil, and the like.

  As typical flame retardant stabilizers, epoxy stabilizers (Products of Adeka Argus Chemical: Mark EP-13, EP-17, EP-22, Mark 273), flame retardant stabilizers of unknown composition (Products of Adeka Argus Chemical: Mark-ZS-66, ZS-506), ABS-PVC-based polymer blend stabilizers (Products of three-sharing machine synthesis: StanBM (N), -RC-200S), ABS, PS Type flame retardant added type stabilizer).

Flame retardant stabilizers include epoxy stabilizers such as Asahi Denka products, trade names, and grades; Adeka Sizer EP-13, Adeka Sizer EP-17, Adeka Sizer EP-22, composition unknown Examples of flame retardant stabilizers include Asahi Denka's products, trade names, and grades; Adeka Stub ZS-66, Adeka Stub ZS-506, ABS-PVC polymer blend stabilizers such as butyl Tin / malate series, octyl / tin / malate series, butyl / tin / sulfur-containing series, octyl / tin / sulfur-containing series, for example, three-share machine synthesis products, trade names and grades; Stan
BM (N), Stan OMF, Stan JF-9B, Stan JF-95B, Stan BK-1100L, Stan JF-95B, Stan BK-1100L, Stan
ONZ-20, Stan ONZ-22, Stan ONZ-22P, StanMMS, MC, and other flame retardant stabilizers include Kyowa Chemical's products, trade names, and grades; DHT-4A-2, and the like.

  The thermosetting resin and thermoplastic resin include glass fiber, glass bead, carbon fiber, ceramic fiber, metal fiber, mica, talc, calcium carbonate, aluminum silicate, kaolin, silica, calcium metasilicate, and bituminous fine powder. , Zeolite, diatomaceous earth, silica sand, pumice powder, slate powder, alumina, iron oxide, aluminum sulfate, barium sulfate, lithopone, calcium sulfate, magnesium oxide, molybdenum disulfide, rubber powder, ebonite powder, shellac, wood powder, coconut palm Shell powder, cork powder, cellulose powder, wood pulp, paper, cloth, mica powder, graphite, glass sphere (GB), volcanic glass hollow body, carbon hollow sphere, anthracite powder, artificial quartz stone, silicone resin fine powder, silica Fillers such as spherical fine particles, other plasticizers, anti-aging agents, UV absorbers, difficult Agents and the like may be added.

The molding process of thermosetting resins is generally compression molding, transfer molding, injection molding, or injection compression molding. In the case of thermoplastic resins, injection molding is generally applied, Actual molding method (solid molding method), injection compression molding method, AGI, GPI, CGM of Asahi Kasei Kogyo Co., Ltd., GIM of Idemitsu Petrochemical Co., Ltd., PFP of Nippon Steel Chemical Co., Ltd., UK , US GAIN Technology Developed by gas assisted molding method (hollow injection molding method) represented by German air mold, contool, etc., and UCC method, USM method, or Toshiba Machine and Asahi Dow TAF method, EX-CELL-O company method, Hettinger foam molding, New-SF, GCP method, Allied Chemical technique, etc. A foam molding method (foam injection molding method) represented by Amutec of Mucell of Asahi Kasei Kogyo Co., Ltd., a method fused with the foam molding method and the gas assist molding method, and The present invention is also applied to a method in which the gas assist molding method and / or the foam molding method are combined with Sumitomo Chemical's SP mold, injection compression molding method.
In some cases, vacuum forming, pressure forming, or catalyst (casting) is also possible.

  In producing foamable resins, foaming methods are broadly divided into physical methods and chemical methods. Examples of physical foaming methods include foaming by mechanical stirring or in molten resin. A method of injecting a volatile solvent into the gas and evaporating it by heating to cause foaming. On the other hand, examples of chemical foaming include a method of causing a chemical reaction and utilizing the generated gas. In general, a foaming agent is often used from the viewpoint of ease of handling.

  Foaming agents are classified into physical foaming agents and chemical foaming agents. Examples of the former physical foaming agents include the above-mentioned supercritical carbon dioxide gas, gaseous carbon dioxide gas, nitrogen gas, air, water vapor, and water. Inorganic liquids and gases typified by, halogenated hydrocarbons such as dichloroethane, methylene chloride, and flon gas, hydrocarbons such as pentane, hexane, heptane, cyclohexane, octane, gasoline, alcohols such as ethanol, ethanol, propanol, There are organic liquids and gases such as low-boiling solvents typified by ethers such as ethyl ether and methyl ethyl ether, or foamable capsules in which the low-boiling solvent is enclosed in a thermoplastic resin shell.

Examples of the latter chemical blowing agent include bicarbonates typified by sodium bicarbonate and ammonium bicarbonate, carbonates typified by ammonium carbonate and the like, nitrites typified by ammonium nitrite and the like, Ca (N ₃ ) Inorganic compounds such as azide compounds typified by _{2 and the} like, hydrogen compounds typified by sodium borohydride, etc., and combinations of light metals such as Mg and Al that react with water, acid and alkali to generate hydrogen gas It is a foaming agent.

  On the other hand, as foaming agents for organic compounds, azodicarbonamide, azobisisobutyronitrile, barium azodicarboxylate, dinitrosopentamethylenetetramine, P, P′-oxybis (benzenesulfonylhydrazide), paratoluenesulfonylhydra Zid, diazoaminobenzene, N, N′-dimethyl N, N′-dinitrosotephthalamide, nitrourea, acetone-P-toluenesulfonyl hydrazone, P-toluenesulfonyl azide, 2,4-toluenesulfonyl hydrazide, P-methylurethane Azolation such as benzenesulfonyl hydrazide, trinitrosomethylene triamine, P-toluenesulfonyl semicarbazide, oxalyl hydrazide, nitroguanidine, hydradicarbonamide, trihydrazinotriazine Things, hydrazine derivatives, semicarbazide compound, azide, nitroso compound, triazole compounds.

  In foam molding in injection molding, the foaming agent is foamed by pyrolysis or the like, so that the pressure of the molten resin is increased, and the foaming gas is dissolved under pressure in the molten resin. It is necessary to plasticize with high back pressure. In particular, when supercritical gas is dissolved, or when a supercritical state is created by pressure and temperature, the molten resin leaks from the nozzle at the tip of the molding machine heating cylinder. It is better to use.

  Shut-off nozzles include hydraulically operated shutoff nozzles, pneumatically operated shutoff nozzles, hydraulically operated rotary nozzles, pneumatically operated rotary nozzles, spring-operated shutoff nozzles, and hydraulically operated hot runner valves. A gate, a pneumatically operated hot runner valve gate, a spring type hot runner valve gate, etc. can be used.

  Examples of other monomers include α-β-insoluble monomers such as acrylic acid, methacrylic acid, maleic acid, itaconic acid, methyl acrylate, ethyl acrylate, methyl methacrylate, maleic anhydride, arylmaleimide, and alkylmaleimide. Saturated organic acids or derivatives thereof; vinyl esters such as vinyl acetate and vinyl butyrate; aromatic vinyl compounds such as styrene and methylstyrene; vinyl silanes such as vinyltrimethylmethoxysilane and γ-methacryloyloxypropyltrimethoxysilane; Small amounts of non-conjugated dienes such as 4-hexadiene, 4-methyl-1,4-hexadiene, 5-4-methyl-1,4-hexadiene, dicyclopentadiene, and ethylidene norbornene (4-ethylidene-2-nonbornene). You may let them.

DESCRIPTION OF SYMBOLS 1 ... Fan, 2 ... Flat plate, 3 ... String member, 4 ... Axis, 5 ... Connection part, 6 ... Through-hole,
DESCRIPTION OF SYMBOLS 30 ... Injection molding machine, 31 ... Fixed side mold, 32 ... Movable side mold, 33 ... Fixed side nesting, 34 ... Movable side nesting, 35 ... Sprue, 36 ... Runner, 37 ... Gate,
38 ... cavity, 39 ... parting line (P / L)

Claims (4)

A plurality of long flat plates made of resin;
A shaft provided so as to pass through one end in the longitudinal direction of the plurality of stacked flat plates;
A wire rod that restrains movement of the adjacent flat plates so that no gap is generated between the other end portions of the adjacent flat plates when the flat plate is rotated about the axis, and
The fan, wherein the flat plate and the wire are integrally formed of the resin.   The fan according to claim 1, wherein one of the flat plates and the shaft are integrally formed.   The fan according to claim 1 or 2, wherein the resin is integrally formed around the wire.   The fan according to claim 1 or 2, wherein the wire is a string member made of the resin.