JPS60133614A - Keyboard and method of producing same - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (Technical Field) The present invention relates to a key fodder mainly used for home appliances, desktop calculators, etc., and a method for manufacturing the same, and is mainly applicable to technical fields related to light electrical appliances.

(Prior Art) The present inventor previously disclosed in Utility Model Application No. 121232/1983 that an aluminum sheet was laminated into an integrally elastically deformable plastic sheet, and a part of this aluminum sheet remained on the plastic sheet. We proposed a keyboard featuring a plurality of independent operation keys.

However, when manufacturing the above keyboard,
The outer surface of the above aluminum sheet is anodized to 710 I7 - This sheet's barrel kiss - 4F
The aluminum sheet is masked, the other parts are chemically removed by etching means, and a portion of the aluminum sheet remains inside the cut-out to form a plurality of independent operation keys.

By the way, in such a keyboard, an oxide film layer remains on the outer surface of the operation keys due to alumite processing, but the aluminum fabric surface of the outer peripheral edge of the keys is exposed when the sheet is removed. Therefore, there was a problem of oxidation corrosion from this exposed fabric direction.

Therefore, the inventor of the present invention considered forming an oxide film layer by alumite processing the outer peripheral edge of each of the keys. Since the keys are independent from each other, it is practically impossible to form an oxide film layer on the outer periphery of each key by alumite processing.

That is, in order to anodize each key in MiJ, is it necessary to connect an electrode for energizing each key? Each key is too small to connect an electrode, and
A keyboard board is equipped with multiple operation keys, and it is extremely difficult to connect an electrode to each of these keys.For this reason, it is not possible to anodize the outer periphery of each key. There wasn't.

(Objective of the present invention) Therefore, the present inventors have long been involved in patent registration Nos. 578, 532, 593, 299, and 624.
, No. 096, No. 750,413, etc., research on the chemical conversion coating method of forming an oxide film layer on aluminum by chemical means rather than electrical means has been continued. To provide a keyboard in which an oxide film layer is formed on the outer periphery of each key, an operation display section, etc. using a chemical conversion film method, and the keys, operation display section, etc. are prevented from oxidative corrosion. With the goal.

(Structure of the present invention) The present invention consists of an elastically deformable plastic sheet in which aluminum sheets are laminated and integrated, and a portion of the aluminum sheet remains on the plastic sheet to provide a plurality of independent operation keys and operation displays. The present invention relates to a key board characterized in that an oxide film layer is formed on the periphery of the operation keys and the operation display section, and a method for manufacturing the keyboard.

(Example of the present invention) Embodiments of the present invention will now be described with reference to the accompanying drawings.

The keyboard shown in Figure 1 is an aluminum sheet Ml)
An elastically deformable plastic sheet with integrated lamination (
2), a part of the aluminum sheet H1117) remains on the plastic sheet (2) to form independent operation keys (3), operation display section (4), decoration section, etc. An oxide film layer (5) is formed by alumite processing on the outer surface of the keys (31, etc.), and characters or a colored layer (6) are provided on the outer surface of each film layer (5) by printing means. has been done.

An oxide film layer (7) is formed on the outer periphery of the operation keys (3), operation display section (4), etc., respectively.

The Ail operation key (3) can also be made to bulge outward by molding a portion of the plastic sheet (2) corresponding to the key (3), as shown in FIG.

The keyboard is manufactured according to the manufacturing process shown in FIG.

First, as shown in FIG. 2A, the aluminum sheet (1) on the plastic sheet (2) is processed by a known alumite processing means to form an oxide film layer (5) on the surface.

Next, as shown in FIG. 3(B), the aluminum sheet (1y's operation keys (3) and operation display section (4), etc.) are masked and etched. (1) is eluted and pulled out, and the key (3) and the display part (4) are formed to remain independently inside this 011 punching.
3) Print letters, a colored layer (6), etc. on the outer surface of the nato.

After this, as shown in the same figure, the plastic sheet (2) is dipped in a chemical conversion coating treatment, and the MiJ key (3) and the operation display ribs (41) are An oxide film layer (7) is formed on the outer peripheral edge.

As the chemical conversion coating treatment method described in +iii, for example, Patent Registration No. 578,532, Patent Registration No. 593,299, Patent Registration No. 624,0
No. 96, No. 750, and No. 413 are used.

(b) 1) When using the treatment method according to Patent Registration No. 11 Nos. 578 and 532, 10 cc of 75% phosphoric acid,
A treatment bath was prepared by adding 0.5 g of sodium fluoride, 10 g of potassium chromate, and 1 QCC of caustic soda to water.
Dipping is performed for 1 to 2 minutes at a bath temperature of 30 to 40°C.

In this treatment method, a 0.5 μm thick celadon-colored 1゛ ψ coating layer (7) is formed, and this celadon enveloping coating layer (7) frames the outer periphery of keys such as Mij key +31 and improves the appearance.・It became watery.

(b) In addition, when using HiJ Patent Registration No. 593,299, 35 f of red blood salt, 51 cc of caustic soda
, add lead oxide 451 to water le to prepare a treatment bath,
Dipping treatment is carried out at a bath temperature of 30 to 40°C for 1 to 10 minutes.

In this treatment method, an oxide film layer of 05 to 1.0 μm thick (7
) was formed, and a white to black oxide film layer +71 was formed over time depending on the treatment time.

(c) Furthermore, when utilizing the above-mentioned Patent Registration No. 624,096, a treatment bath is prepared by adding 20 y of ammonium molybdate, 15 d of sodium acetate, and 7 cc of caustic soda to water le, and the bath temperature is 70° C. Dipping treatment is carried out in C for 10 minutes.

In this treatment method, a thin golden oxide film layer (7) with a thickness of 0.5 μm is formed, and the outer periphery of the key (3) is bordered by this golden film layer (7), giving it an excellent appearance. It became.

In addition, when using the above-mentioned Patent No. B 750,413, a treatment bath is prepared by adding 159 ammonium molyfdate, 5 f/ammonium chloride, and 15 cc of caustic soda to 1 liter of water, and the bath is 2M 100''. Dipping treatment is carried out for 5 minutes in C.

In this treatment method, a black R19 coating layer (7) with a thickness of 0811 m was formed, and the outer periphery of the key (3) was bordered by this black coating layer (7).

(Operations and Effects of the Present Invention) As explained below, in the keyboard according to the present invention, the aluminum sheet is placed on the plastic sheet. Since the oxide film layer is formed on the outer periphery of the key, according to the present invention, there is no need to expose the fabric surface on the outer periphery of the key, as is the case with conventional methods, and the oxide film layer can be protected from the outer periphery of the MiJ. hand,
The effect of preventing oxidative corrosion of the key material can be achieved.

Furthermore, in the present invention, in forming the oxide film layer on the outer peripheral edge of the key element, the oxide film layer is formed on the outer peripheral edge of the key element by chemical conversion coating treatment without using electrical means. Extremely easy and efficient layering
This enables mass production on a factory scale.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention; FIG. 1 is a sectional view of a keyboard according to the invention, FIG. 2 is a sectional view of another embodiment, and FIG. 3 is a diagram showing the manufacturing process of the keyboard. be. (1)...aluminum sheet, (2)...plastic sheet (3) operation 1' [key, (4) operation display section, (7) acid f ace skin) kan+rq

Claims (2)

[Claims] (1) Consisting of an elastically deformable plastic sheet made by laminating and integrating aluminum sheets, a portion of the aluminum sheet remains on the plastic sheet to form a plurality of independent operation keys and an operation display section. . A keyboard board, characterized in that an oxide film layer is formed on the peripheral edges of the operation keys and the operation display section. (2) Elastic deformation of integrated laminated aluminum sheets 1
The aluminum sheet is chemically cut out using a flexible plastic sheet 2, and a part of the aluminum sheet remains inside the cutout to form a plurality of independent operation keys, operation display parts, etc., and then, A method for manufacturing a keyboard, characterized in that an oxide film layer is formed on the peripheral edge of the striking part through a chemical conversion treatment.