CN101443869A - Metal key sheet laminate, metal key sheet, and metal key pad - Google Patents
Metal key sheet laminate, metal key sheet, and metal key pad Download PDFInfo
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- CN101443869A CN101443869A CNA2007800174317A CN200780017431A CN101443869A CN 101443869 A CN101443869 A CN 101443869A CN A2007800174317 A CNA2007800174317 A CN A2007800174317A CN 200780017431 A CN200780017431 A CN 200780017431A CN 101443869 A CN101443869 A CN 101443869A
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- metallic plate
- metal keyboard
- thin slice
- laminated material
- metal
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2209/00—Layers
- H01H2209/068—Properties of the membrane
- H01H2209/07—Properties of the membrane metallic
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- Push-Button Switches (AREA)
Abstract
A metal key sheet laminate used for an input button part of an information terminal is composed of at least a transparent resin sheet and a metal sheet. Recess characters and so forth are formed in the laminate by etching. A metal key sheet where recess characters and so forth having a high degree of freedom of design are formed and a metal key pad manufactured by a simple method are also provided.
Description
Technical field
The metal keyboard of input button portion that the present invention relates to be used for information terminal machines such as mobile phone is with the manufacture method of laminated material, the metal keyboard that uses this laminated material and metal key mat and metal keyboard and metal key mat.
Background technology
In patent documentation 1, put down in writing synthetic resin system thin slice button (sheet key) as the member that is used for the input button portion of information terminal machines such as mobile phone.
In addition, in recent years,, also has metal keyboard (patent documentation 2) as identical member.As the metal keyboard, have the metal keyboard made by independent metallic plate and by bond layer at the metallic plate superimposed layer metal keyboard that makes of synthetic resin thin slices such as PET, owing to used metallic plate, can make the metallic bond dish have feeling of high class concurrently, can seek filming simultaneously.
In addition, on the metal keyboard, be formed with the press section, on each press section, be formed with the hollow out literal.This hollow out literal has following function: the light that sends from the internal light source of information terminal machine is appeared from this hollow out literal, thereby in the dark also can see the hollow out literal, thereby can in the dark operate.
Patent documentation 1: TOHKEMY 2005-032622 communique
Patent documentation 2: TOHKEMY 2006-156333 communique
Summary of the invention
The problem that invention will solve
The general structure of metal keyboard is shown in Fig. 1 (a).Metal keyboard 200 is by constituting with the lower part: a plurality of press sections 60, separate the cutting part 40 of these a plurality of press sections 60 and be formed on hollow out literal 50 on this press section 60.In patent documentation 2, form hollow out literal 50 (display part) and cutting part 40 (ditch at interval) (0015 paragraph, 0036 paragraph) by punching press.Said being meant by punching press carried out punching press to the independent metallic plate before resin flake and the lamination, forms hollow out literal 50 and cutting part 40.Therefore, for example, shown in Fig. 2 (a), wanting to form with punching press under the situation of numeral 6, entire circumference is formed with the part A and the other parts of ditch isolates, and causes this part A to break away from.Therefore, shown in Fig. 2 (b),, need design in the mode that partly connects metallic plate in order not form isolated part.Thus, on design or decorative cover, produced restriction.
Also identical at patent documentation aspect this 2, as the enlarged drawing of the display part shown in Figure 17 of patent documentation 2, be to design in the mode that does not produce isolated part.In addition, shown in Fig. 1, Figure 12～16, numeral 4,6,8,9,0, # are designed to the structure that part connects in order not produce isolated part.
In addition, in patent documentation 2, be that the operation panel that will form hollow out literal and cutting part by punching press is attached on the base plate and forms after all, therefore in order to fix more solidly, utilize bonding agent they to be fixed (paragraph 0042).Among the present invention, in order to improve above-mentioned design, the laminated plate of metallic plate and resin flake is carried out etching form hollow out literal and cutting part, but may produce following problem: using bonding agent with metallic plate and resin flake fixedly the time, bonding portion dissolving when etching, the part A etc. that is formed with ditch in above-mentioned entire circumference is peeled off.The such problem that occurs during about the employing etching, patent documentation 2 shows no sign of to be considered.
In addition, in present metal keyboard, because metallic plate and as the bonding difficulty of the silicon rubber of key mat material, for example, by bonding agent etc. behind the resin films such as back laminate PET of metallic plate, again by bonding agent etc. with resin film and bonding as the silicon rubber of key mat material.Therefore, hope can be made the metal key mat by simpler method.
Therefore, in order to address the above problem, problem of the present invention is to provide the metal keyboard that can form hollow out literal etc. by etching and processing with high metal keyboard that is formed with hollow out literal etc. of laminated material, design freedom and the metal key mat that can make by simple method.
Solve the method for problem
Below the present invention will be described.Need to prove that in order more easily to understand the present invention, in bracket, but the present invention is not defined as illustrated form therefrom with the reference marks remarks of accompanying drawing.
The 1st aspect of the present invention is a kind of metal keyboard laminated material (100), it is used for the input button portion of information terminal machine, this laminated material has transparent resin thin slice (20) and metallic plate (10) at least, and forms by transparent resin thin slice (20) and metallic plate (10) are carried out heat bonding.Here said information terminal machine is meant for example mobile phone, PDA, portable music player, portable game machine etc.
The metal keyboard of the 1st aspect of the present invention owing to constituting by having high-intensity metallic plate (10), therefore can constitute thin laminated material (100) with laminated material (100).In addition, owing to it constitutes by having transparent resin thin slice (20), therefore can form the hollow out literal by etching and processing, the degree of freedom height of design.In addition, be issued to the outside from this hollow out literal, therefore can give in the dark use functional the information terminal machine owing to can make the light transmission transparent resin thin slice (20) of backlight.In addition, by transparent resin thin slice (20) and metallic plate (10) are carried out heat bonding, in the etching work procedure when making metal keyboard (200), can not produce etching solution and enter the interface of transparent resin thin slice (20) and metallic plate (10) and make it peel off or remain in interface a period of time and make the problem of corrosion of metal sheet.
The metal keyboard of the 1st aspect of the present invention when making metal keyboard (200), can be two kinds of following structures with laminated material (100): from outward appearance to inner essence have the structure of transparent resin thin slice (20) and metallic plate (10) and from outward appearance to inner essence have metallic plate (10) and the structure of transparent resin thin slice (20).In addition, being when from outward appearance to inner essence having the structure of metallic plate (10) and transparent resin thin slice (20),, therefore preferably utilize the polyurethanes resin to constitute transparent resin thin slice (20) because the formation of key mat (30) becomes easily.And in this case, transparent resin thin slice (20) can be filled up the ditch of cutting part (40) and form protuberance.Need to prove that so-called metal keyboard is meant a side that becomes the surface when making the input button portion of information terminal machine, a side of finger contact when operating with " surface " of laminated material, metal keyboard and metal key mat.
The metal keyboard of the 1st aspect of the present invention can be by constituting with face side of laminated material (100) lamination transparent resin thin slice (20) successively and metallic plate (10) from the metal keyboard with laminated material (100).
The metal keyboard of the 1st aspect of the present invention can be following structure with laminated material (100): have metallic plate (10) and transparent resin thin slice (20) from the metal keyboard successively with the face side of laminated material (100), and transparent resin thin slice (20) is made of the polyurethanes resin.
The metal keyboard of the 1st aspect of the present invention is with in the laminated material (100), and metallic plate (10) can utilize silane coupling agent to carry out surface treatment.Can improve the adaptation of transparent resin thin slice (20) and chromatic metallic plate (10) thus.
The metal keyboard of the 1st aspect of the present invention is with in the laminated material (100), and metallic plate (10) is preferably the chromatic metallic plate.Constitute owing to laminated material has chromatic metallic plate (10), therefore can comply with multiple change color, improve design.
The metal keyboard of the 1st aspect of the present invention is with in the laminated material (100), and the chromatic metallic plate can form oxide-film and develop the color by the surface at metallic plate.The surface of the chromatic metallic plate of stainless steel or titanium etc. has oxide-film usually, and this overlay film can be given the metallic plate corrosion resistance.Among the present invention, make the metallic plate colour developing by the thickness of controlling this oxide-film.
The metal keyboard of the 1st aspect of the present invention is with in the laminated material (100), and the chromatic metallic plate can form the overlay film that contains inorganic compound and develop the color by the surface at metallic plate.As the overlay film that contains inorganic compound, can enumerate the overlay film of inorganic compounds such as containing TiN, TiAlN, TiAlCN.Difference according to the inorganic material kind can demonstrate shades of colour.The metallic plate that formation contains the overlay film of inorganic compound is not limited to corrosion resistant plate, can also form on other metallic plates such as aluminium, magnesium, titanium.
The metal keyboard of the 1st aspect of the present invention is with in the laminated material (100), and the chromatic metallic plate is preferably colored stainless steel plate.From high strength, be easy to get and cheap aspect, compare with other chromatic metallic plate, more preferably use colored stainless steel plate.
The 2nd aspect of the present invention is a kind of metal keyboard (200), its metal keyboard with the 1st aspect of the present invention carries out hollow out literal (50) and the cutting part (40) that etching and processing forms with laminated material (100) and by the metallic plate (10) to this laminated material, and this cutting part (40) forms the press section.In the 2nd aspect of the present invention, when metallic plate (10) was carried out etching and processing, transparent resin thin slice (20) became supporter.Therefore, for example have the hollow out literal of isolated part even form, this isolated part do not come off and above remaining on, thereby can widen the amplitude of the design of metal keyboard, wherein, this isolated part is formed with ditch in entire circumference.
The metal keyboard (200) of the 2nd aspect of the present invention can form the profile (70) of appointment by punching press.For example, as mother metal, a plurality of metal keyboards are set on this mother metal, concentrate and carry out etching with the laminated material of a slice the 1st aspect of the present invention.At last, by carrying out stamping procedure, can make a plurality of metal keyboards simultaneously by disposable etching and processing.
The 3rd aspect of the present invention provides a kind of metal key mat, and it has: the metal keyboard (200) of the 2nd aspect of the present invention and be stacked in key mat with surface opposite one side of this metal keyboard.Metal keyboard of the present invention (200) has following two kinds of structures: structure and surface that the surface has transparent resin thin slice (20) have the structure of metallic plate (10).Key mat (30) is provided with and is stacked in the side with the surface opposite of each self-structure, becomes metal key mat (300).Owing to be such structure, what therefore expose in the outside of hollow out literal or cutting part is transparent resin thin slice (20), no matter is any structure, and key mat (30) surface can be protected by transparent resin thin slice (20).
For example, forming by silicon rubber under the situation of key mat (30), there are the following problems: the key mat (30) that is made of this silicon rubber is if contact with skin for a long time, key mat (30) can be low because of the traumatic resistance of sebum variable color and silicon rubber itself, and metal key mat of the present invention (300) has solved such problem by accompanying transparent resin thin slice (20).
In the 3rd aspect of the present invention, can make the metal key mat (300) of structure with the key mat (30) that is stacked in transparent resin thin slice (20) one sides that constitute by the polyurethanes resin (begin to have metallic plate (10), the transparent resin thin slice (20) that constitutes by the polyurethanes resin and the structure of key mat (30)) from the surface, in this case, can utilize following method to make metal key mat (300).
The metal key mat (300) of the 3rd aspect of the present invention can be by being solidified to form under the state of transparent resin thin slice one side contacts that makes rubber precursor and metal keyboard.In addition, key mat (30) can be by being solidified to form under the state of transparent resin thin slice (20) one side contacts that make liquid-state silastic compositions and metal keyboard (200).
The 4th aspect of the present invention is the manufacture method of a kind of metal keyboard (200), it comprises: form the operation of hollow out literal (50) and cutting part (40) in the operation of the last heat bonding transparent resin thin slice (20) of metallic plate (10), to this metallic plate (10) enforcement etching and processing, wherein this cutting part (40) forms the press section.
The 5th aspect of the present invention is the manufacture method of a kind of metal key mat (300), it comprises: go up the operation of heat bonding transparent resin thin slice (20) at metallic plate (10), this metallic plate (10) is implemented etching and processing and form the operation of hollow out literal (50) and cutting part (40) and make rubber precursor and the state of transparent resin thin slice (20) one side contacts under by being solidified to form the operation of key mat, this cutting part (40) formation press section wherein.
The effect of invention
The metal keyboard of the 1st aspect of the present invention owing to constituting by having high-intensity metallic plate (10), therefore can constitute thin laminated material (100) with laminated material (100).In addition, constitute, therefore can form the hollow out literal by etching and processing, the degree of freedom height of design owing to having transparent resin thin slice (20).In addition, owing to can be issued to the outside from this hollow out literal, therefore can give in the dark use functional to the information terminal machine by the light transmission transparent resin thin slice (20) that makes backlight.
Description of drawings
Fig. 1 is the plane graph of an execution mode of metal keyboard 200 of the present invention.
(a) is the example that can be formed on the hollow out literal on the metal keyboard of the present invention among Fig. 2.(b) be the present example that is formed on the hollow out literal on the metal keyboard.
Fig. 3 illustrates the concept map of being made the operation of metal keyboard 200 by the metal keyboard with laminated material 100.
Fig. 4 is the concept map that the structure of metal key mat 300 is shown.
(a) is the plane graph of an execution mode of metal keyboard 200 of the present invention among Fig. 5.(b) be the profile of protuberance 55.
Symbol description
10 metallic plates
20 transparent resin thin slices
30 key mats
40 cutting parts
50 hollow out literal
60 press sections
The profile of 70 appointments
100 metal keyboard laminated materials
200 metal keyboards
300 metal key mats
Embodiment
Shown in Fig. 3 (a) and Fig. 3 (b), metal keyboard of the present invention has metallic plate 10 and transparent resin thin slice 20 with laminated material 100 and constitutes.Below each inscape is described.
(metallic plate 10)
As metallic plate 10, can use aluminium sheet, corrosion resistant plate, pack fong, copper coin, brass, nickel steel plate etc.Wherein, preferred use thin but the spring that obtains rigidity, tonequality sense (sense of Network リ Star Network) easily with corrosion resistant plate, spring pack fong.
The lower limit of the thickness of metallic plate 10 is preferably more than the 50 μ m, more preferably more than the 100 μ m.Under be limited to 50 μ m when above, the intensity of pushing in the time of can obtaining to stand operation.In addition, the upper limit is preferably below the 300 μ m, more preferably below the 200 μ m.On be limited to 300 μ m when following, the tonequality sense is arranged during operation easily.
In addition,, can also carry out chromate processing, metal-plated processing etc. to metallic plate 10 in advance,, can also carry out surface treatments such as BA processing, hairline processing in order to improve the design of outward appearance in order to improve the adaptation of metallic plate and resin flake 20.
(chromatic metallic plate)
As metallic plate 10,, preferably use the chromatic metallic plate from improving the viewpoint of design.So-called chromatic metallic plate is meant by the surface to metallic plate and carries out various processing such as evaporation, sputter, ion plating, oxidation processes, can see being colored as versicolor metallic plate (being undertaken except the painted metallic plate by covering with paint).
As the chromatic metallic panel material, as long as, for example have: stainless steel, aluminium, titanium, magnesium etc. for the material with prescribed strength just is not particularly limited.Wherein, aluminium is difficult to give its intensity sometimes when laminating, and titanium and magnesium is because costliness and use is limited, the therefore preferred stainless steel that uses.Also can keep intensity even stainless steel is thin, and cheap and acquisition easily.
(colorize method of metallic plate)
Preferred colorize method as metallic plate, for example have: by physical vapor depositions such as vacuum vapour deposition, sputter, ion platings, or chemical vapor depositions such as hot CVD, plasma CVD, laser CVD, MOCVD form the method for the overlay film that contains inorganic compound on the surface of metallic plate.
As the overlay film that contains inorganic compound, can enumerate the overlay film of inorganic compounds such as containing TiN, TiAlN, TiAlCN.For example, can make the corrosion resistant plate colour developing for golden by on corrosion resistant plate, forming the overlay film of the inorganic compound that contains TiN.In addition, when on corrosion resistant plate, forming the overlay film of the inorganic compound that contains TiAlN, can make the corrosion resistant plate colour developing be bronze colour or cyan.In addition, when on corrosion resistant plate, forming the overlay film of the inorganic compound that contains TiAlCN, can make the corrosion resistant plate colour developing be black.Thus, contain the composition of the overlay film of inorganic compound, can demonstrate various colors by change.
In addition, when using metallic plates such as stainless steel or titanium as metallic plate, as the preferred colorize method of metallic plate, the surface that can be set forth in metallic plate forms the method for oxide-film.Stainless steel or titanium etc. have oxide-film on the surface usually, and this overlay film can make stainless steel have corrosion resistance.Can develop the color by the thickness of controlling this oxide-film among the present invention.
That is to say, owing between the reverberation at the interface of the reverberation on oxide-film surface and oxide-film and metallic plate, produce optical path difference, therefore produce interference of light, have only the light of certain specific wavelength corresponding to become high light, become the color of chromatic metallic plate and display with optical path difference.
Coloration method as form oxide-film on the surface of corrosion resistant plate most preferably uses Yin Kefa (イ Application コ method).Below this method is carried out simple declaration.By corrosion resistant plate being immersed in the coloring liquid that contains sulfuric acid and chromic acid (VI), form oxide-film, and the thickness of prolongation oxide-film in time increases.Thickness can be measured the formation current potential of overlay film and control by to be installed in platinum in the painted groove as the reference electrode.Secondly, handle, overlay film is solidified by in the nitration mixture of chromic acid (VI) and phosphoric acid, carrying out catholyte.Corresponding with the thickness of oxide-film, color is changed to bronze colour, gold, redness, peacock green (ピ-コ Star Network), green continuously, can also show black by the composition that changes painted groove.
Need to prove that above-mentioned overlay film and the oxide-film that contains inorganic compound can be two or more at the metallic plate superimposed layer with sandwich construction, also can combination stack contain the overlay film and the oxide-film of inorganic compound.Can comply with multiple change color by making such sandwich construction.
As the concrete example of the chromatic metallic plate of above-mentioned explanation, can enumerate the colored stainless steel plate etc. that formation on colored aluminium that formation on colored titanium by oxide-film being grown up develop the color, the colored stainless steel plate by oxide-film being grown up develop the color, the surface contains the overlay film of inorganic compound, the surface contains the overlay film of inorganic compound.Wherein, the present invention preferably uses formation on colored stainless steel plate by oxide-film being grown up develop the color, the surface to contain the colored stainless steel plate of the overlay film of inorganic compound.
As metallic plate is carried out method of colouring, it is also conceivable that covering with paint.But when the metallic plate of covering with paint, lacquer, colour wash, etc. was carried out etching, coatings existed not etched and remains on the metallic plate, causes the problem of the property difference easy to identify of hollow out literal.In addition, also have following problem: etching solution may be deposited on the coatings, and can not be removed by washing procedure and left behind, and this etching solution is with corrosion of metal sheet.Therefore, do not comprise covering with paint in the colorize method of metallic plate of the present invention.Need to prove that so-called among the present invention " covering with paint " is meant by coating and contains the coating (material that is made of the bonding agent that contains pigment, organic compound) of pigment or dyestuff and carry out drying, thereby carry out method of colouring.
(transparent resin thin slice 20)
As transparent resin thin slice 20,, aspect kind, just have no particular limits as long as be the thin slice of the transparency, traumatic resistance, resistance to chemical reagents excellence.For example, can use the thin slice that comprises PETG, polybutylene terephthalate (PBT), polypropylene-based resin, polyurethanes resin, polycarbonate resin, polythylene resin, polymethyl methacrylate, polyamide-based resin.
Under the situation of using biaxial stretch-formed PETG or polycarbonate sheet, have transparent resin thin slice 20 by top layer at metal keyboard 200, not only can form the hollow out literal, can also give metal keyboard traumatic resistance.In addition, when using the polyurethanes resin, have transparent resin thin slice 20, when spraying as the silicones of key mat 30 materials to the back side and it is solidified, can carry out bonding in the mode that does not have priming coat by the back side at metal keyboard 200.In addition, on the top layer of metal keyboard 200 is under the situation of metallic plate 10, the edge of the metal that produces when forming cutting part 40 and hollow out literal 50 by etching and processing or punch process may cut hand, but by having the polyurethanes resin overleaf, can fill up this ditch.
The polyurethanes resin for example can be made by polyol and polyisocyanate compound are reacted according to usual way.As polyol, for example can enumerate: polyethylene glycol, polypropylene glycol, polyethylene glycol/propylene glycol (Port リ エ チ レ Application プ ロ ピ レ Application グ リ コ-Le), polytetramethylene glycol, 1,6-hexylene glycol, 1,4-butanediol, 1,5-pentanediol, diglycol, triethylene-glycol, polycaprolactone, poly-adipic acid hexylene glycol ester, poly-decanedioic acid hexylene glycol ester, poly adipate succinic acid ester, polydiethylene glycol sebacate, trimethylolpropane, trimethylolethane, pentaerythrite, glycerine etc.
In addition, as polyisocyanate compound, for example can enumerate: the addition product of the addition product of hexamethylene diisocyanate, methyl diphenylene diisocyanate, toluene di-isocyanate(TDI), IPDI, toluene di-isocyanate(TDI) and trimethylolpropane, hexamethylene diisocyanate and trimethylolethane etc.
In addition, for the color that makes chromatic metallic plate 10 is more obvious and to require transparent resin thin slice 20 to have high when transparent, preferably use polymethyl methacrylate.
So-called transparent resin thin slice 20 transparent, be meant the transparent of following degree: the property easy to identify at bright local hollow out literal is good, and can see through the light of backlight, even in the dark also can discern the hollow out literal thus.Therefore, transparent resin thin slice 20 can be for being colored the transparent resin thin slice of the degree that can guarantee above-mentioned property easy to identify, also can be for be dispersed with the resin flake of light particle in transparent resin.
The lower limit of the thickness of transparent resin thin slice 20 is preferably more than the 20 μ m, more preferably more than the 30 μ m.Thickness is 20 μ m when above, can obtain standing the intensity of use.In addition, the upper limit is preferably below the 200 μ m, more preferably below the 100 μ m.Thickness is when desired thickness is above, and economy is impaired.
Side at the laminated metal sheet 10 of transparent resin thin slice 20 can also form easy adhesive linkage.Easily adhesive linkage for example can form by the following method: wait lamination by the layer grade that is made of the fusing point resin lower than the resin that constitutes transparent resin thin slice 20 carried out coextrusion.For example, under the situation of using PETG, the copolymer of the polyester that the part of the repetitive by using ester in polyester is made of sour composition more than a kind or 2 kinds and the polyalcohol more than a kind or 2 kinds can obtain low-melting resin bed.As concrete example, can be by forming easy adhesive linkage comprising the layer that coextrusion on the transparent resin thin slice 20 of PETG comprises the copolymerization pet resin, wherein, in the copolymerization pet resin, the dicarboxylic acids composition comprises the M-phthalic acid of 20 moles of % and the terephthalic acid (TPA) of 80 moles of %, and diol component is made of ethylene glycol.Form low-melting easy adhesive linkage by as above operation, illustrated method for optimizing is a heat bonding during as adhering method below adopting, and is bonding easily.
(adhering method)
Metal keyboard of the present invention is with in the laminated material 100, and the adhering method of transparent resin thin slice 20 and metallic plate 10 is not particularly limited, and it is bonding to use bonding agent to carry out, and also can carry out heat bonding.As bonding agent, for example can be set forth in the solvent dissolving bonding agent composition and the bonding agent that constitutes, apply this bonding agent in transparent resin thin slice 20 1 sides or metallic plate 10 1 sides, with the two applying, evaporating solvent and to make its curing be common operable method.As bonding agent, for example can use polyesters bonding agent etc.
Can be by the etching and processing manufactured moulding of laminated material 100 of the present invention becomes to have the metal keyboard 200 of hollow out literal etc., but have following problem in etching and processing: etching solution is deposited on the bond layer, and the matting by the back can't be removed, thus the problem that causes residual etching solution that the problem of corrosion of metal sheet and metallic plate 10 and transparent resin thin slice 20 may be peeled off.From the viewpoint that prevents that such problem from taking place, the adhering method of transparent resin film 20 and metallic plate 10 is preferably undertaken by hot sticky fetching.
The heat bonding of metallic plate 10 and transparent resin thin slice 20 can use known method to carry out.For example, with metallic plate 10 heating furnace by 200 ℃～500 ℃, with surface temperature control under 100 ℃～350 ℃ state, transparent resin thin slice 20 is stacked on the metallic plate 10 that heated, and the method for pressurizeing with backer roll; Perhaps before heating with metallic plate 10 and transparent resin thin slice 20 laminations, be that 100 ℃～350 ℃ mode lateral dominance carries out squish lip with the heating of metal roller and carries out bonding method with the surface temperature of metallic plate 10.
In addition,, can carry out surface treatment with silane coupling agent etc. to metallic plate 10 earlier, make it bonding afterwards again in order to improve the adaptation of transparent resin thin slice 20 and metallic plate 10.Among the present invention, so-called silane coupling agent is the organic silicon monomer that has reactive groups different more than 2 in its molecule.In 2 reactive groups 1 is and inorganic material (glass, metal etc.) is carried out chemically combined reactive group, and another reactive group is and organic material (various synthetic resin) carries out chemically combined reactive group.Be not particularly limited with the reactive group of inorganic material bondings such as corrosion resistant plate, methoxyl group, ethyoxyl, silanol group etc. are for example arranged.In addition and the reactive group of organic material combination such as various synthetic resin be not particularly limited, amino, epoxy radicals, methacryloxy, acryloxy etc. are for example arranged.
As the coating amount of the silane coupling agent on the surface of metallic plate 10, the lower limit of its concentration is preferably 0.01mg/m
2More than, 0.1mg/m more preferably
2More than.As long as the coating amount of silane coupling agent is at 0.01mg/m
2More than, just can obtain sufficient cementability.The upper limit of the coating amount of silane coupling agent is preferably 1000mg/m
2Below, 750mg/m more preferably
2Below.As long as coating amount is at 1000mg/m
2Below, just can not produce condensation, when operation, can not have problems yet.In addition, when metallic plate 10 is applied, under the situation of being stained with the silane coupling agent aqueous solution, can in the aqueous solution, sneak into surfactant to improve wetability.
With the structure of laminated material 100, can between metallic plate 10 and transparent resin thin slice 20, have bond layer as the metal keyboard, can also further have other the layer that does not hinder effect of the present invention.Layer as other for example can partly be provided with printed layers; Or make dyed layer and painted stack of sheets, thereby can be only that a part of hollow out word segment is painted by other method.
(metal keyboard 200)
Fig. 3 shows the summary of the manufacturing process of metal keyboard.Metal keyboard 200 of the present invention has following two kinds of forms: transparent resin thin slice 20 sides shown in Fig. 3 (a) overleaf form and transparent resin thin slice 20 sides shown in Fig. 3 (b) in the form on surface.Under the situation that transparent resin thin slice 20 is used as the back side, owing to can therefore can make the outward appearance of metal itself distincter with metallic plate 10, particularly chromatic metallic plate as the surface of metal keyboard 200.Particularly the metal surface is carried out BA processing, hairline adds man-hour, considers it is preferred from design aspect.In addition, when transparent resin thin slice 20 comprises polyurethanes resin, polycarbonate resin etc., can directly on resin flake 20, utilize in-molded (イ Application モ-Le De moulding) to come moulding key mat 30.In addition, under the situation that transparent resin thin slice 20 is used as the surface,, therefore can prevent to cut rough sledding such as hand by what this edge caused because the edge of metallic plate 10 covered by resin flake 20, in addition, has the advantage that can on metal covering, directly not adhere to the fingerprint pollution.
Cutting part 40 is to run through the ditch that metallic plate 10 forms.In structure shown in Figure 1, utilize this cutting part 40 to form tongue-shaped press section 60.The shape of cutting part 40 is as long as be that the shape that forms tongue-shaped press section 60 just is not particularly limited, can for the tongue-shaped press section shown in Fig. 1 (a) upwards, the broken line shape that forms successively downwards, also can be divided into the curve shape of curve for the bight of the tongue piece shown in Fig. 1 (b).In addition, each press section 60 can also be cut apart with parallel lines.The width of cutting part 40 is preferably 0.2mm～3mm.When the width of cutting part 40 is wide, become many, make appearance damage sometimes from the part that can see between the space of cutting part 40.
Hollow out literal 50 is formed in the display text on the press section 60, forms by running through metallic plate 10.In the input button portion of information terminal machine, usually, be distributed in numeral on each press section 60, letter, symbol etc. and be formed on the press section 60 as hollow out literal 50.In present metal keyboard, carry out punching press by metallic plate and form the hollow out literal individual layer, therefore wanting to form when for example " zero " waits, there is the problem of the middle body disengaging of the ditch encirclement that forms by punching press.Therefore, in order to prevent the generation of this problem, to form otch on a part of zero, middle body formed with a part and outside ways of connecting in the past.Therefore, the design of hollow out literal in the past is restricted, and becomes the obstacle when formation designs with more complicated design freely.
Therefore the present invention carries out etching by the laminated material 100 to transparent resin thin slice 20 and metallic plate 10 and forms the hollow out literal, can not produce the problems referred to above, not numeric only, letter, and the shape of complexity such as hiragana, Chinese character, symbol also can form the hollow out literal.
(etching and processing)
Hollow out literal 50 and cutting part 40 form by etching and processing.As etching and processing, from the viewpoint of treatment effeciency, economy, preferably undertaken, but also can adopt dry ecthing according to the complexity of the hollow out literal 50 that forms by wet etching.In addition, as the processing method of wet etching, employing impregnating metal keyboard in filling the container of etching solution impregnated of laminated material 100, easy thereby preferred, but, also can adopt etching solution is blown the injecting type that is attached on the metal keyboard usefulness laminated material 100 from viewpoints such as treatment effeciencies; Fixing laminated material and splash into the rotary of etching solution on rotating platform.
Concrete example as etching and processing, following method is for example arranged: the hollow out literal 50 on metallic plate 10 surfaces and the part beyond the cutting part 40 are covered, be immersed in the etching solution, the metal of the part (part of hollow out literal 50 and cutting part 40) beyond dissolving is covered, metallic plate is processed into the shape identical with covering pattern, carry out neutralisation treatment, flushing washing then, carry out drying then.As etching solution, for example can use acid chlorization ferrous solution etc.
As covering, can use photolithographic technology.Particularly, can followingly carry out: behind coating photoresist on whole, appointed pattern is exposed, developed, only form the peristome of protective layer (resist) in the part that has formed hollow out literal 50 and cutting part 40.
(punching press)
In stamping procedure, the profile of metal keyboard 200 is stamped into the shape 70 of appointment.The mould of the appointment that the metal keyboard that can use and make 200 is corresponding and common decompressor carry out.Need to prove that this stamping procedure can carry out after making metal key mat 300 from forming following illustrated key mat 30 again, the order of manufacturing is not particularly limited.
When making metal keyboard 200 of the present invention, 1 metal keyboard is distributed a plurality of metal keyboards 200 with laminated material 100, they are carried out etching and processing simultaneously, can form a plurality of metal keyboards 200 simultaneously by each metal keyboard 200 is carried out punching press then.
In addition, according to circumstances can carry out the extrusion forming operation.Thus, for example, the deep-draw processing that can stipulate metal keyboard 200, warpage processing etc.Extrusion forming method can utilize known low temperature extrusion forming to carry out.In addition, also can make up hollow out type and flexure type etc. and carry out above-mentioned hollow out processing and pressurization processing simultaneously.
Shown in Fig. 5 (a), can on press section 60, form protuberance 55 as required.Protuberance 55 forms recess 57 overleaf, forms (Fig. 5 (b) expression be metallic plate 10 to be configured in surperficial situation as an example wherein) in face side in protuberance 55 outstanding modes by low temperature pressurization shown in Fig. 5 (b).Protuberance 55 makes about its outstanding 20～100 μ m to get final product for the degree that finger can hook gets final product.By forming protuberance 55, can hook finger, thereby make pushing of press section 60 become easy.
(metal key mat 300)
Fig. 4 (a)～(c) shows the schematic diagram of metal key mat 300 of the present invention.Metal key mat 300 of the present invention is to have above-mentioned metal keyboard 200 of the present invention and key mat 30 and constitute.
(key mat 30)
Material as forming key mat 30 for example, can use elasticity excellence, the good materials of durability such as silicon rubber, styrene analog thermoplastic elastomer, ester analog thermoplastic elastomer.Wherein, from the viewpoint of processability (processed finished products rate height), especially preferably use silicon rubber.
It is bonding that metal keyboard 200 and key mat 30 can utilize known method to carry out.The 1st kind of method is the method for utilizing bonding agent that the resin flake 20 of metal keyboard 200 and key mat 30 is bonding.The 2nd kind of method is configuration metal keyboard 200 on mould, and will be ejected into as the rubber precursor of key mat material on it, makes its method that engages with resin flake (in-molded) when making its curing.As Fig. 4 (a) with (b), when resin flake 20 is configured in the back side of metal keyboard 200, can utilize any method in above-mentioned the 1st kind of method and the 2nd kind of method to make key mat.Need to prove, from omitting the viewpoint of bond layer, more preferably the 2nd kind of method.For example, as long as for polyurethanes resin or polycarbonate resin, just can not use bonding agent and directly carry out in-molded (the 2nd kind of method).In addition, in the 2nd kind of method, when spraying,, when penetrating rubber precursor, can make resin flake 20 elongations and fill up cutting part 40 (Fig. 4 (b)) by heating of metal keyboard 200 in advance.Thus, the edge of chromatic metallic plate 10 can be filled up, thereby fail safe can be further improved.Need to prove, when using the 2nd kind of method,, can preferably use the thin slice that constitutes by the polyurethanes resin as resin flake 20 in order to fill up cutting part 40 with resin flake.
In addition, shown in Fig. 4 (c), in the time of on the surface that resin flake 20 is configured in metal keyboard 200, can utilize above-mentioned the 1st kind of method to make key mat.
As the material of key mat 30, can especially preferably use silicon rubber, under this situation,, use aqueous rubber composition as rubber precursor.As aqueous rubber composition, be with aqueous polysiloxane, crosslinking agent and/or the curing catalysts with reactive group be host, be the composition of aqueous or pasty state at normal temperatures, place at normal temperatures or when heating, solidify and become the aqueous rubber composition of rubber-like elastic body.The curing temperature of aqueous rubber composition is 80 ℃～200 ℃, is preferably 130 ℃～170 ℃.The curing of aqueous silicon rubber needs can burn when surpassing 200 ℃ for a long time when being lower than 80 ℃.
Aqueous silicon rubber can be enumerated addition reaction-type, radical reaction type, condensation reaction type according to its curing mechanism, because moisture does not participate in when solidifying, and can be with in-molded excellent formed body, therefore preferred addition reaction-type or the radical reaction type of obtaining.In addition, when using the thin slice made by the polyurethanes resin as transparent resin thin slice 20, owing to can obtain the cementability of the excellence between its and this transparent resin thin slice 20 and can obtain the excellent in uniformity of curing rate, curing faster by heating, the therefore especially preferred aqueous rubber composition of addition reaction-type.
The representational example of so aqueous rubber composition of addition reaction-type is following composition, and said composition comprises: the polysiloxane that (a) has 2 alkenyls in 1 molecule at least; (b) have 2 poly-Organhydridosiloxaneresins that contain that are bonded in hydrogen atom on the silicon atom in 1 molecule at least; Reach (c) platinum compounds, and for by (a) composition and (b) reaction of composition form netted molecular skeleton, in the number that is bonded to the hydrogen atom on the silicon atom of the number of the alkenyl of per 1 molecule (a) composition and per 1 molecule (b) composition at least any, the preferred latter is average 2 the number that surpasses, for the rubber-like elastic body of the curable and the physical properties excellent that obtain being suitable for injection-molded article, further preferred average out to is more than 3.
In Japanese kokai publication hei 8-118417, record use aqueous silicon rubber, by silicon rubber formed body and manufacture method that polyurethane resin covers, key mat 30 of the present invention can utilize this method and form.
Embodiment
The present invention will be described in more detail below by embodiment.
(embodiment 1)
Roll out the thick SUS304 (H material) of 150 μ m of spiral form, make it pass through 280 ℃ heating furnace,, under 200 ℃ state, the easy bonding PET thin slice of the single face of 50 μ m is fitted in the mode that easy bonding plane and metallic plate join in surface temperature control, obtain metal keyboard laminated material.
Then, the metal keyboard that obtains is implemented to cover with hollow out literal, the cutting part part in addition of laminated material, be impregnated in the acid chlorization ferrous solution (40 ℃ of concentration 40%, temperature), remove hollow out literal, the cutting part of metallic plate, then, be immersed in the alkaline solution, neutralize, cover and peel off, wash washing again.Then, after under 130 ℃ dry 15 minutes,, obtain the metal keyboard shown in Fig. 5 (a) with gear baking oven (ギ ア オ-Block Application) by stamping procedure, extrusion forming operation.
(comparative example 1)
Roll out the thick SUS304 (H material) of 150 μ m of spiral form, coating polyesters bonding agent on metal covering, and the PET thin slice of coating thickness 50 μ m obtain laminated material.
Then, the metal keyboard that obtains is implemented to cover with hollow out literal, the cutting part part in addition of laminated material, be impregnated in the acid chlorization ferrous solution (40 ℃ of concentration 40%, temperature), remove hollow out literal, the cutting part of metallic plate, then, be immersed in the alkaline solution, neutralize, cover and peel off, wash washing again.Then, after under 130 ℃ dry 15 minutes,, obtain the metal keyboard with the gear baking oven by stamping procedure, extrusion forming operation.
(peeling off evaluation)
Make the metal keyboard of 20 embodiment 1 and comparative example 1 respectively, the hollow out literal is estimated by visual.
(corrosion evaluation)
The metal keyboard of embodiment 1 and comparative example 1 was placed 96 hours under 65 ℃, the environment of 90%RH, estimated having or not of corrosion by visual test then.
For embodiment 1, in peeling off evaluation, can not confirm that the hollow out word segment has part and peels off.In corrosion evaluation, can not confirm to see corrosion.
For comparative example 1, in peeling off evaluation, there are 8 parts that can see hollow space to peel off in 20.In corrosion evaluation, produce the part variable color that is considered to corrode at the peripheral part of hollow out literal, this part does not have metallic luster, and it is unusual to produce outward appearance.
(embodiment 2)
Utilize application roll on the face of the thick SUS304 of 150 μ m of spiral form (H material), to apply the aqueous solution of preparing in amino silane and surfactant concentrations 0.3%, 0.05% the mode of being respectively, make it pass through 290 ℃ heating furnace, in surface temperature control under 230 ℃ state, the sheet of polyurethane of coating thickness 50 μ m obtains metal keyboard laminated material.
The metal keyboard that obtains is covered with the hollow out literal of metallic plate one side of laminated material, the part beyond the cutting part, be immersed in the acid chlorization ferrous solution (40 ℃ of concentration 40%, temperature), remove hollow out literal, the cutting part of metallic plate, then, be immersed in the alkaline solution, what neutralize, cover peels off, and washes washing again.Then, after under 130 ℃ dry 15 minutes, carry out punch process, extrusion forming, obtain the metal keyboard shown in Fig. 1 (a) with 12 tongue piece portion with the gear baking oven.Need to prove, in extrusion forming, around the metal keyboard, formed the difference in height (section is poor) that is used for the combination of the framework of information terminal machine.
Add dimethyl silicone polymer that 100 part of two end protected by dimethyl vinyl silicyl, 1.1 parts of poly-hydrogenated methyl siloxanes, 4 parts of gamma-methyl allyl acyloxypropyl trimethoxysilanes and be the platinum-poly-ethylene methacrylic radical siloxane complex compound of the amount of 10ppm, obtain rubber composition as the key mat material with respect to dimethyl silicone polymer.Then the metal keyboard that obtains is configured on the mould that is heated to 150 ℃, sprays above-mentioned rubber composition, under 150 ℃, heat, in the cure silicone rubber composition that the resin face and the key mat of metal keyboard is bonding, obtain the metal key mat.
(comparative example 2)
To the face coating polyesters bonding agent of the thick SUS304 of 150 μ m of spiral form (H material), the sheet of polyurethane of coating thickness 50 μ m obtains laminated material.Use the method identical to make the metal keyboard then, with metal keyboard and the bonding metal key mat of making of key mat with embodiment 2.
(reference example 1)
Roll out the thick SUS304 (H material) of 150 μ m of spiral form, make it pass through 280 ℃ heating furnace, under 200 ℃ state, the mode that the easy bonding PET thin slice of the single face of 50 μ m is joined with easy bonding plane and metallic plate one side is carried out bonding, obtains laminated material in surface temperature control.Then, adopt the method making metal keyboard identical, with metal keyboard and the bonding metal key mat of making of key mat with embodiment 2.
Metal keyboard, the metal key mat that is made by the foregoing description 2, comparative example 2, reference example 1 carried out following evaluation.Evaluation result separately is shown in table 1.
(elching resistant evaluation)
Make the metal keyboard of 20 embodiment 2, comparative example 2, reference example 1 respectively, the hollow out literal is estimated by visual.And placed 96 hours under 65 ℃, the environment of 90%RH, the Visual Confirmation corrosion has or not then.
Zero: can not confirm that by visual burn into peels off.
*: can confirm that by visual burn into peels off.
(with the cementability evaluation of silicon rubber)
Make 5 respectively and utilize the said method metal keyboard of silicon rubber and embodiment 2, comparative example 2, reference example 1 is the bonding and test film of the wide 2cm that obtains, after under 65 ℃, the environment of 90%RH, placing 96 hours, use cupping machine, under draw speed 10mm/ minute condition, under 180 ℃, carry out disbonded test.
Zero: the interface of polyurethane and silicon rubber does not produce and peels off, and the cohesion that produces silicon rubber destroys.
*: peel off in the generation of the interface of polyurethane and silicon rubber.
(the backfill evaluation of cutting part)
Make the metal key mat of 20 embodiment 2, comparative example 2, reference example 1 respectively, fill up cutting part with resin, the Visual Confirmation polyorganosiloxane resin is by the situation of polyurethane or PET covering.
Zero: cutting part is filled up by resin, and its surface is covered by polyurethane or PET.
*: cutting part is not filled up by resin or silicon rubber exposes on the top layer.
[table 1]
| Embodiment 2 | Comparative example 2 | Reference example 1 | |
| Elching resistant | ○ | × | ○ |
| Cementability with silicon rubber | ○ | ○ | × |
| The backfill of cutting part | ○ | ○ | × |
In embodiment 2, the peeling off of the isolated part that ditch surrounded to the hollow out literal all unconfirmed.Can not confirm corrosion by visual.In estimating with the cementability of silicon rubber, the cohesion that produces silastic-layer destroys.Hence one can see that, and the interface of sheet of polyurethane and silicon rubber is bonding securely.Cutting part is filled up by resin, and all can confirm sheet of polyurethane covering silicon rubber top layer.
In the comparative example 2, peeling off of 9 isolated parts that can confirm the hollow out literal arranged in 20.In addition, hollow out literal periphery can be seen the variable color that is considered to corrode.Think that this reason for corrosion of generation is as follows: permeate etching solution on bond layer, even by washing, etching solution also can remain in the bond layer.In estimating with the cementability of silicon rubber, the cohesion that produces silastic-layer destroys.The interface of sheet of polyurethane that hence one can see that and silicon rubber is bonding securely.Cutting part is filled up by resin, and all can confirm sheet of polyurethane covering silicon rubber top layer.
In the reference example 1, the peeling off of the isolated part to the hollow out literal all unconfirmed.Can not confirm corrosion by visual.In estimating with the cementability of silicone rubber, under 65 ℃, the environment of 90%RH, place 96 hours after, the peeling off naturally of 2 visible silicon rubber in 20.In addition, in the disbonded test, the interface of PET thin slice and silicon rubber produces and peels off, and it is bonding insufficient that hence one can see that.Cutting part is filled up by resin, but the PET thin slice can not comply with its distortion and rupture, silicon rubber exposes from the surface.
(embodiment 3)
Roll out the black colored stainless steel plate of spiral form, make it pass through 280 ℃ heating furnace, under 200 ℃ state, the single face of 50 μ m carried out easy bonding processing and the PET thin slice that obtains (easy adhesive linkage: with the molar ratio computing M-phthalic acid: terephthalic acid (TPA): ethylene glycol=1:4:5 in surface temperature control; The thickness ratio=9/1 of pet layer/adhesive linkage) mode of joining with easy bonding plane and metallic plate one side is carried out bonding.As the black colored stainless steel plate, use the painted groove that contains chromic acid (100g/L) and sulfuric acid (600g/L) to form oxide-film, make SUS304 (H material) colour developing of the thick hairline processing of 150 μ m.
The metal keyboard that obtains is covered with the hollow out literal of chromatic metallic plate one side of laminated material, the part beyond the cutting part, be immersed in the acid chlorization ferrous solution (40 ℃ of concentration 40%, temperature), remove hollow out literal, the cutting part of chromatic metallic plate, then, be immersed in the alkaline solution, what neutralize, cover peels off, and washes washing again.Then, after under 100 ℃ dry 15 minutes, carry out punch process, extrusion forming, obtain the metal keyboard with 12 tongue piece portion shown in Figure 1 with the gear baking oven.Among the embodiment 1, be that the mode on top layer forms with the PET thin slice.Need to prove, in extrusion forming, around the metal keyboard, formed the difference in height that is used for the combination of the framework of information terminal machine.
Add the poly-hydrogenated methyl siloxanes of dimethyl silicone polymer, 1.1 mass parts that 100 mass parts, two ends are protected by dimethyl vinyl silicyl, 4 mass parts gamma-methyl allyl acyloxypropyl trimethoxysilanes and relatively dimethyl silicone polymer be the platinum-poly-ethylene methacrylic radical siloxane complex compound of the amount of 10ppm, obtain becoming the rubber composition of key mat material.Follow surface applied acrylic-based adhesives, carry out drying, adhesive linkage is set, spray above-mentioned rubber composition then, under 150 ℃, heat, carry out the curing of rubber composition, obtain the metal key mat at the metallic plate of the above-mentioned metal keyboard that obtains.
(embodiment 4)
Among the embodiment 4, as the black colored stainless steel plate, the steel plate that uses overlay film that surface sputtering by SUS304 (H material) that the thick hairline of 150 μ m is processed contains the inorganic compound that comprises TiAlCN to form, in addition, operation similarly to Example 3 obtains metal keyboard laminated material, metal keyboard and metal key mat.
(embodiment 5)
Among the embodiment 5, as colored stainless steel plate, use the colored stainless steel plate of the gold that overlay film that surface sputtering by SUS304 (H material) that the thick hairline of 150 μ m is processed contains the inorganic compound that comprises TiN forms, in addition, operation similarly to Example 3 obtains metal keyboard laminated material, metal keyboard and metal key mat.
(embodiment 6)
Utilizing application roll amino silane concentration with metal sheet surface on a face of the golden colored stainless steel plate of embodiment 5 is 50mg/m
2Mode apply the aqueous solution, wherein this aqueous solution is that mode that concentration with amino silane and interfacial agent is respectively 0.3 quality %, 0.05 quality % is prepared and the aqueous solution that obtains, make it pass through 290 ℃ heating furnace, in surface temperature control under 200 ℃ state, the sheet of polyurethane of coating thickness 50 μ m obtains metal keyboard laminated material.Then, be that the mode of sheet of polyurethane is operated similarly to Example 1 with the back side, obtain the metal keyboard.
Then, the metal keyboard that obtains is configured on the mould that is heated to 150 ℃, the rubber composition identical with the composition of use among the embodiment 3 is directly injected on the sheet of polyurethane of metal keyboard, under 150 ℃, heat, in the curing of carrying out rubber composition, the resin face and the key mat of metal keyboard is bonding, obtain the metal key mat.
(comparative example 3)
The SUS304 that 150 μ m of spiral form are thick (H material) passes through 450 ℃ heating furnace, in surface temperature control under 300 ℃ state, applying contains the black PETG thin slice of the thickness 50 μ m of 1 quality % carbon black, obtains resin-covered metal sheet.Become the mode of black PETG thin slice then with the surface, utilization and embodiment 1 same method obtain the metal keyboard.
(comparative example 4)
Facing one side that is coated with at the thick SUS304 of 150 μ m of the polysiloxanes Polyester resin lacquer that is coated with black (H material) applies crylic acid resin bonding agent, the PETG thin slice of bonding thickness 50 μ m.Become the mode of black PETG thin slice then with the surface, utilization and embodiment 3 same methods obtain the metal keyboard.
(evaluation result)
Evaluation result is shown in table 2.
[table 2]
| Metal sheet surface | Resin flake | The adhering method of metallic plate and resin flake | Face side | The color of keyboard | The color of hollow out literal | Etching | Hollow out literal identity | |
| Embodiment 3 | The chromic acid oxide-film | Easy bonding PET | Heat bonding | Resin | Black | Water white transparency | ○ | ○ |
| |
TiAlCN | Easy bonding PET | Heat bonding | Resin | Black | Water white transparency | ○ | ○ |
| Embodiment 5 | TiN | Easy bonding PET | Heat bonding | Resin | Golden | Water white transparency | ○ | ○ |
| Embodiment 6 | TiN | Polyurethane | Heat bonding (silane treatment) | Metallic plate | Golden | Water white transparency | ○ | ○ |
| Comparative example 3 | - | Black PET | Heat bonding | Resin | Black | Black | ○ | × |
| Comparative example 4 | The polysiloxanes mylar is covered with paint, lacquer, colour wash, etc. | PET | Bonding agent | Resin | Black | Residual a little black | × | × |
The metal keyboard that is made by embodiment 3, embodiment 4, embodiment 5 and embodiment 6 can be distinguished the color of display color metallic plate, hollow out literal " 6 " etc. with hollow space also can Show Color, in addition, because the hollow out word segment is transparent, therefore from the back side illuminaton light time, in the dark can clearly discern literal.
In contrast, by the metal keyboard that comparative example 3 makes, metallic plate can form hollow out literal " 6 " with hollow space etc., but because surperficial superimposed layer has the film of black, therefore can not confirm literal.In addition, from the back side illuminaton light time, because therefore printing opacity hardly can not clearly discern literal.In the comparative example 4, at the residual coating of hollow out word segment, identity, the design of literal reduce significantly.In addition, when carrying out etching, etching solution is deposited on coatings and the adhesive linkage and is painted to the color of etching solution, may cause the corrosion of metallic plate and peeling off of metallic plate and transparent resin thin slice.
Industrial applicibility
Metal keyboard of the present invention can be for the input part of the information terminal machines such as mobile phone with laminated material, the metal keyboard that uses this laminated material and metal key mat.
Claims (17)
1. metal keyboard laminated material that is used for the input button portion of information terminal machine, wherein, this laminated material has transparent resin thin slice and metallic plate at least, and forms by this transparent resin thin slice and this metallic plate are carried out heat bonding.
2. the described metal keyboard of claim 1 laminated material, wherein, this laminated material forms from face side described transparent resin thin slice that begun successively lamination and described metallic plate.
3. the described metal keyboard of claim 1 laminated material, wherein, this laminated material begins to have described metallic plate and described transparent resin thin slice from face side, and this transparent resin thin slice is made of the polyurethanes resin.
4. each described metal keyboard laminated material in the claim 1～3, wherein, described metallic plate utilizes silane coupling agent to carry out surface treatment.
5. each described metal keyboard laminated material in the claim 1～4, wherein, described metallic plate is the chromatic metallic plate.
6. the described metal keyboard of claim 5 laminated material, wherein, described chromatic metallic plate forms oxide-film by the surface at metallic plate and develops the color.
7. claim 5 or 6 described metal keyboard laminated materials, wherein, described chromatic metallic plate forms on the surface of metallic plate and contains the overlay film of inorganic compound and develop the color.
8. each described metal keyboard laminated material in the claim 5～7, wherein, described chromatic metallic plate is a colored stainless steel plate.
9. metal keyboard, it has each described metal keyboard in the claim 1～8 and implements hollow out literal and the cutting part that etching and processing forms with laminated material and by the described metallic plate to this laminated material, and wherein said cutting part forms the press section.
10. the described metal keyboard of claim 9, it forms the profile of regulation by punching press.
11. a metal key mat, it has claim 9 or 10 described metal keyboards and the key mat that is stacked in a side of the surface opposite of this metal keyboard constitutes.
12. metal key mat, it has the metal keyboard and constitutes with the key mat that is stacked in transparent resin thin slice one side that is made of described polyurethanes resin, described metal keyboard has each described metal keyboard in the claim 3～8 and implements hollow out literal and the cutting part that etching and processing forms with laminated material and by the described metallic plate to this laminated material, and wherein said cutting part forms the press section.
13. the described metal key mat of claim 12, wherein, described metal keyboard is stamped and forms the profile of appointment.
14. claim 12 or 13 described metal key mats, wherein, described key mat is by being solidified to form under the state of described transparent resin thin slice one side contacts that makes rubber precursor and described metal keyboard.
15. claim 12 or 13 described metal key mats, wherein, described key mat is the silicon rubber system key mat by being solidified to form under the state of described transparent resin thin slice one side contacts that makes liquid-state silastic compositions and described metal keyboard.
16. the manufacture method of a metal keyboard, it comprises: on metallic plate the operation of heat bonding transparent resin thin slice, this metallic plate is implemented etching and processing and is formed the operation of hollow out literal and cutting part, wherein said cutting part forms the press section.
17. the manufacture method of a metal key mat, it comprises: implement etching and processing in the operation of heat bonding transparent resin thin slice on the metallic plate, to this metallic plate and form the operation of hollow out literal and cutting part and make rubber precursor with the state of described transparent resin thin slice one side contacts under by being solidified to form the operation of key mat, wherein said cutting part formation press section.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP135345/2006 | 2006-05-15 | ||
| JP2006135345A JP2007305527A (en) | 2006-05-15 | 2006-05-15 | Laminated material for metal key pad, and metal key pad using it |
| JP226378/2006 | 2006-08-23 | ||
| JP047824/2007 | 2007-02-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101443869A true CN101443869A (en) | 2009-05-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007800174317A Pending CN101443869A (en) | 2006-05-15 | 2007-05-14 | Metal key sheet laminate, metal key sheet, and metal key pad |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2007305527A (en) |
| CN (1) | CN101443869A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101635212B (en) * | 2008-07-25 | 2011-11-16 | 比亚迪股份有限公司 | Key, keyboard, manufacturing method for keyboard and mobile phone with keyboard |
| CN103545135A (en) * | 2012-06-18 | 2014-01-29 | 金武用 | Light-emitting button key and method for manufacturing same |
| CN103592999A (en) * | 2012-08-14 | 2014-02-19 | 汉达精密电子(昆山)有限公司 | Laptop keyboard forming method and product formed by same |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59152637U (en) * | 1983-03-31 | 1984-10-13 | カシオ計算機株式会社 | metal panel with movable key |
| JPS62138099U (en) * | 1986-02-25 | 1987-08-31 | ||
| JP4679226B2 (en) * | 2004-10-28 | 2011-04-27 | ポリマテック株式会社 | Cover sheet for pushbutton switch |
-
2006
- 2006-05-15 JP JP2006135345A patent/JP2007305527A/en active Pending
-
2007
- 2007-05-14 CN CNA2007800174317A patent/CN101443869A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101635212B (en) * | 2008-07-25 | 2011-11-16 | 比亚迪股份有限公司 | Key, keyboard, manufacturing method for keyboard and mobile phone with keyboard |
| CN103545135A (en) * | 2012-06-18 | 2014-01-29 | 金武用 | Light-emitting button key and method for manufacturing same |
| CN103545135B (en) * | 2012-06-18 | 2015-08-19 | 金武用 | Illuminated push button and manufacture method thereof |
| CN103592999A (en) * | 2012-08-14 | 2014-02-19 | 汉达精密电子(昆山)有限公司 | Laptop keyboard forming method and product formed by same |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2007305527A (en) | 2007-11-22 |
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Effective date of registration: 20090807 Address after: Tokyo, Japan Applicant after: MITSUBISHI resin Co., Ltd. Co-applicant after: Sunarrow Ltd. Address before: Tokyo, Japan, Japan Applicant before: Mitsubishi Plastics Industries Ltd. |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090527 |