JPH0448596Y2

JPH0448596Y2 -

Info

Publication number: JPH0448596Y2
Application number: JP17434985U
Authority: JP
Priority date: 1985-11-13
Filing date: 1985-11-13
Publication date: 1992-11-16
Also published as: JPS6282533U

Description

【考案の詳細な説明】 (イ) 産業上の利用分野この考案は構造を改良したカード電卓に関す
る。[Detailed explanation of the invention] (a) Industrial application field This invention relates to a card calculator with an improved structure.

(ロ) 従来の技術従来のカード電卓は、第６図に示すようスレン
レス等からなる凹状の金属板１と、この金属板を
包み金属板１と一体に薄型凹状に形成された合成
樹脂製のキヤビネツト２とを備え、金属板１によ
つてカード電卓自体の強度を確保している。な
お、同図において、３はデイスプレイフイルム、
４はキーシンボル、５はフレキシブル基板、６は
キー接点、７はキースペーサ、８は対向接点、９
は対向接点基板、１０は裏面ラベル、１１はムー
ブ固定用テープである。(b) Prior Art As shown in Fig. 6, a conventional card calculator includes a concave metal plate 1 made of stainless steel, etc., and a thin concave synthetic resin plate that wraps this metal plate and is integrally formed with the metal plate 1. The card calculator itself is provided with a cabinet 2, and the strength of the card calculator itself is ensured by the metal plate 1. In addition, in the same figure, 3 is a display film,
4 is a key symbol, 5 is a flexible board, 6 is a key contact, 7 is a key spacer, 8 is an opposing contact, 9
1 is a counter contact board, 10 is a back label, and 11 is a move fixing tape.

(ハ) 考案が解決しようとする問題点しかし、上記カード電卓では、第６図に示すよ
うにキヤビネツト２を形成する合成樹脂が金属板
１の上面側にしか形成されていないため、キヤビ
ネツト２成形時の収縮によりカード電卓自体が同
図に示す矢印方向に反ることがあつた。(c) Problems to be solved by the invention However, in the above card calculator, the synthetic resin forming the cabinet 2 is formed only on the upper surface side of the metal plate 1, as shown in FIG. Due to shrinkage over time, the card calculator itself sometimes warped in the direction of the arrow shown in the figure.

この考案は以上の事情に鑑みなされたもので、
金属板とキヤビネツトとの一体成形において、キ
ヤビネツト成形時の収縮によつてカード電卓自体
に反りが発生しないようにすることを目的とする
ものである。 This idea was made in view of the above circumstances,
The object of this invention is to prevent the card calculator itself from warping due to shrinkage during molding of the cabinet when integrally molding a metal plate and a cabinet.

(ニ) 問題点を解決するための手段この考案は金属板と、この金属板を包んだ状態
で金属板と一体に薄型凹状に形成される合成樹脂
製のキヤビネツトと、このキヤビネツトに取付け
られその上面を被うデイスプレイフイルムと、こ
のデイスプレイフイルムの下面に取付けられたフ
レキシブル基板と、このフレキシブル基板の下面
に形成された多数のキー接点とを備えたカード電
卓において、金属板にその各キー接点に対向する部位の近傍
を切欠いて形成した１又は対向する２つ１組のス
リツト状の開口部を設けるとともに、金属板に、
その前記各キー接点に対向する部位を下側から絞
りキヤビネツト形成後に、キヤビネツトの凹状部
の内底面に上面が露出し前記開口部によつて形成
された開口を１側面又は対向する２側面に有する
箱状の突部を多数設けたことを特徴とするカード
電卓である。(d) Means for solving the problem This invention consists of a metal plate, a synthetic resin cabinet that is formed into a thin concave shape integrally with the metal plate while encasing the metal plate, and a cabinet that is attached to the cabinet. In a card calculator equipped with a display film covering the top surface, a flexible substrate attached to the bottom surface of the display film, and a number of key contacts formed on the bottom surface of the flexible substrate, each key contact is attached to a metal plate. In addition to providing one or a pair of opposing slit-shaped openings formed by cutting out the vicinity of the opposing parts, the metal plate is provided with:
After the portion facing each of the key contacts is squeezed from below to form a cabinet, the upper surface is exposed on the inner bottom surface of the concave portion of the cabinet, and an opening formed by the opening is formed on one side or two opposing sides. This card calculator is characterized by having many box-shaped protrusions.

(ハ) 作用この考案は各キー接点を押圧すると、各キー接
点がキヤビネツトの凹状の内底面に露出する突部
の上面に接触するようにしたものである。(C) Function This device is designed so that when each key contact is pressed, each key contact comes into contact with the upper surface of the protrusion exposed on the concave inner bottom surface of the cabinet.

(ヘ) 実施例以下図に示す実施例に基づいてこの考案を詳述
する。(f) Examples This invention will be described in detail below based on examples shown in the figures.

第１図及び第２図はこの考案の一実施例を示す
一部分解斜視図及び部分断面図である。これらの
図において、１２は凹状のステンレス等からなる
金属板で、１３は金属板１２を包んだ状態で金属
板１２と一体に薄型凹状に形成される合成樹脂製
のキヤビネツトであり、キヤビネツト１３の上面
にはキヤビネツト１３の上面を被うデイスプレイ
フイルム１４が取付けられている。デイスプレイ
フイルム１４の下面にはフレキシブル基板１５が
取付けられており、フレキシブル基板１５の下面
には多数のキー接点１６が形成されている。フレ
キシブル基板１５とキヤビネツト１３の凹状部１
７の内底面との間にはムーブ固定用テープ１８が
挿入されており、それによつてそれらの間には所
定の間隔が形成されている。なお、１９はキーシ
ンボル、２０は裏面ラベルである。 1 and 2 are a partially exploded perspective view and a partially sectional view showing an embodiment of this invention. In these figures, 12 is a concave metal plate made of stainless steel or the like, and 13 is a synthetic resin cabinet formed integrally with the metal plate 12 in a thin concave shape. A display film 14 that covers the top surface of the cabinet 13 is attached to the top surface. A flexible substrate 15 is attached to the lower surface of the display film 14, and a large number of key contacts 16 are formed on the lower surface of the flexible substrate 15. Flexible substrate 15 and concave portion 1 of cabinet 13
A move fixing tape 18 is inserted between the inner bottom surface of the holder 7 and the inner bottom surface of the holder 7, thereby forming a predetermined distance therebetween. Note that 19 is a key symbol, and 20 is a back label.

金属板１２には、第４図ｂに示すようにその各
キー接点１６に対向する部位の近傍を切欠いて形
成した１つのスリツト状の開口部２１が設けられ
ており、さらに金属板１２には、第４図ａ，ｂ及
び第３図に示すように上記各キー接点１６に対向
する部位を下側からプレス機２２によつて絞り、
キヤビネツト形成後に、キヤビネツト１３の凹状
部１７の内底面に上面が露出し前記開口部２１に
よつて形成された開口２３を１側面に有する矩形
箱状の突部２４が多数設けられている。 As shown in FIG. 4b, the metal plate 12 is provided with one slit-shaped opening 21 formed by cutting out the vicinity of the portion facing each key contact 16. , as shown in FIGS. 4a and 4b and FIG. 3, the parts facing each of the key contacts 16 are squeezed from below by a press 22,
After the cabinet is formed, a large number of rectangular box-shaped protrusions 24 are provided on the inner bottom surface of the concave portion 17 of the cabinet 13, the upper surface of which is exposed and which has an opening 23 formed by the opening 21 on one side.

このカード電卓において、キーシンボル１９を
押圧してキー接点１６を押し下げると、キー接点
１６がキヤビネツト１３の凹状部１７内底面に露
出した突部２４の上面に接触する。すなわち、突
部２４の上面が対向接点（２５、第１図参照）と
なる。 In this card calculator, when the key symbol 19 is pressed to push down the key contact 16, the key contact 16 comes into contact with the upper surface of the protrusion 24 exposed on the inner bottom surface of the recessed portion 17 of the cabinet 13. That is, the upper surface of the protrusion 24 becomes an opposing contact (25, see FIG. 1).

以上のように、金属板１２に多数の突部２４を
設けることによつて、金属板１２の加工硬化が起
こり補強効果が向上するとともに、金属板１２と
キヤビネツト１３との一体成形時に生ずるカード
電卓自体の反りを防止することができる。したが
つて、フラツトなカード電卓を得ることができ
る。さらに、突部２４の上面を対向接点としてい
るため、対向接点を形成するためのキー接点基板
が不用となり、またムーブ固定用テープ１８がキ
ースペーサを兼用しているため、キースペーサが
不用となりカード電卓自体の製造コストを低下さ
せることができる。 As described above, by providing a large number of protrusions 24 on the metal plate 12, the metal plate 12 is work-hardened and the reinforcing effect is improved. It is possible to prevent warping of itself. Therefore, a flat card calculator can be obtained. Furthermore, since the upper surface of the protrusion 24 is used as the opposing contact, there is no need for a key contact board for forming the opposing contact, and since the move fixing tape 18 also serves as a key spacer, the key spacer is no longer needed. The manufacturing cost of the calculator itself can be reduced.

第５図は他の実施例を示す要部斜視図で、第１
実施例と同様の場所に対向して２つ１組のスリツ
ト状開口部（図示しない）を設けたものである。
この場合、突部２４ａは第１実施例と同様にして
形成され、その対向する２側面に上記開口部によ
つて開口２３ａ，２３ａが形成される。 FIG. 5 is a perspective view of main parts showing another embodiment.
A set of two slit-shaped openings (not shown) are provided at the same locations as in the embodiment and facing each other.
In this case, the protrusion 24a is formed in the same manner as in the first embodiment, and openings 23a, 23a are formed by the above-mentioned openings on its two opposing sides.

(ト) 考案の効果この考案によれば、カード電卓自体の反りを防
止することができ、またカード電卓自体の製造コ
ストを低下させることができる。(G) Effects of the invention According to this invention, it is possible to prevent the card calculator itself from warping, and it is also possible to reduce the manufacturing cost of the card calculator itself.

[Brief explanation of the drawing]

第１図及び第２図はこの考案の一実施例を示す
一部分解斜視図及び断面図、第３図はこの考案に
用いられる金属板の部分斜視図、第４図ａ〜ｃは
この考案における突部形成方法を説明する説明斜
視図、第５図は他の実施例を示す第４図ａ相当
図、第６図は従来例の第２図相当図である。１２……金属板、１３……キヤビネツト、１４
……デイスプレイフイルム、１５……フレキシブ
ル基板、１６……キー接点、１７……凹状部、２
１……スリツト状開口部、２３，２３ａ……開
口、２４，２４ａ……突部。 Figures 1 and 2 are a partially exploded perspective view and a sectional view showing an embodiment of this invention, Figure 3 is a partial perspective view of a metal plate used in this invention, and Figures 4 a to c are in accordance with this invention. FIG. 5 is a diagram corresponding to FIG. 4a showing another embodiment, and FIG. 6 is a diagram corresponding to FIG. 2 of a conventional example. 12...metal plate, 13...cabinet, 14
... Display film, 15 ... Flexible substrate, 16 ... Key contact, 17 ... Concave portion, 2
1...Slit-shaped opening, 23, 23a...Opening, 24, 24a...Protrusion.

Claims

[Claims for Utility Model Registration] A metal plate, a synthetic resin cabinet formed into a thin concave shape integrally with the metal plate while surrounding the metal plate, and a display film attached to the cabinet and covering its upper surface. In a card calculator equipped with a flexible substrate attached to the bottom surface of the display film and a large number of key contacts formed on the bottom surface of the flexible substrate, a metal plate is provided with the vicinity of the portion facing each of the key contacts. In addition to providing one or a pair of opposing slit-shaped openings formed by cutting out the metal plate,
After forming the cabinet by drawing the portion facing each of the key contacts from below, the upper surface is exposed on the inner bottom surface of the concave portion of the cabinet, and an opening formed by the opening is formed on one side or two opposing sides. A card calculator characterized by having many box-shaped protrusions.