JP3547793B2 - Electronic device having a hole or recess for wall hanging - Google Patents

Electronic device having a hole or recess for wall hanging Download PDF

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Publication number
JP3547793B2
JP3547793B2 JP12406394A JP12406394A JP3547793B2 JP 3547793 B2 JP3547793 B2 JP 3547793B2 JP 12406394 A JP12406394 A JP 12406394A JP 12406394 A JP12406394 A JP 12406394A JP 3547793 B2 JP3547793 B2 JP 3547793B2
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JP
Japan
Prior art keywords
electronic device
housing
wall
printed circuit
recess
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
JP12406394A
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Japanese (ja)
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JPH07336060A (en
Inventor
正治 谷本
徳幸 木本
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sanyo Electric Co Ltd
Original Assignee
Tottori Sanyo Electric Co Ltd
Sanyo Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tottori Sanyo Electric Co Ltd, Sanyo Electric Co Ltd filed Critical Tottori Sanyo Electric Co Ltd
Priority to JP12406394A priority Critical patent/JP3547793B2/en
Publication of JPH07336060A publication Critical patent/JPH07336060A/en
Application granted granted Critical
Publication of JP3547793B2 publication Critical patent/JP3547793B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Mounting Of Printed Circuit Boards And The Like (AREA)
  • Casings For Electric Apparatus (AREA)

Description

【0001】
【産業上の利用分野】
本発明は壁掛け用の孔部または凹部を有する電子機器装置に関する。
【0002】
【従来の技術】
室内の壁や柱等に固定された釘やネジ等の頭部を、壁掛け用の孔部または凹部を有する保持部に係合させて壁に保持させる電子機器が多く市販されている。この壁掛け用の保持部を第1の従来例として図に基づき説明する。図7は電子機器の外面より見た保持部の平面図である。図8は電子機器の内面より見た平面図である。図9は図7におけるC−C断面図である。図10は図7におけるD−D断面図である。図7,9,10において2点鎖線は固定ネジ(18)であり、室内の壁や柱等に螺着されて壁掛け用の保持部に係合する。(19)は壁掛け用の保持部であり、電子機器の筐体の外面(2)より外側に突出している。外面(2)と並行な保持部(19)の上面(3)には大円部(4)と該大円部(4)の一部より延在する小長円部(5)とからなる鍵穴形状の凹部(6)が設けられている。該凹部(6)は鍵穴形状の底部(7)と側壁(8)とからなり、該側壁(8)の小長円部(5)と該小長円部(5)側の大円部(4)の半分側は貫設された空部(9)となっている。これにより、底部(7)は小長円部(5)の一端が自由端となる片持梁を有することになる。図11は図9に示す断面部分の金型の突き合わせ状態を示す。図11に示すごとく、保持部(19)は固定型(20)と移動型(21)により筐体と一体で射出成形されるものであり、空部(9)は固定型(20)と移動型(21)の突き合わせ部(E部)により外面と内面が連通する。
【0003】
固定ネジ(18)の形状について説明する。固定ネジ(18)は頭部(22)とネジ部(23)とからなり、頭部(22)の円形天面に硬貨でも螺着が可能なマイナス形状のドライバー溝(24)と、頭部(22)の側面には周方向に延在する溝(25)を有し、頭部(22)の直径D1は保持部(19)の大円部(4)の最小直径D2より小さく、小長円部(5)の最小直径D3より大きい(D2>D1>D3)。溝(25)によって分割される頭部(22)の頂端側の円柱形状の高さH1は保持部(19)の上面(3)と底部(7)の肉厚で挟まれる空部の高さH2より小さい(H1<H2)。溝(24)の幅W1は保持部(19)の底部(7)の肉厚H3より大きく(W1>H3)、溝(24)の底面で形成される円柱の直径D4は小長円部(5)の最小直径D3より小さい(D4<D3)。ネジ部(23)はセルフタッピンネジ1種(先端が鋭利であり、壁等の下穴の雌ネジ加工が不要なネジ)の加工が施されている。
【0004】
上記の如く形成される保持部(19)に固定ネジ(18)を係合する方法について説明する。固定ネジ(18)の頭部(20)を保持部(19)の大円部(4)に挿入させる(図9のFの位置)。D2>D1であるためにこの挿入が可能である。W1>H3且つD4<D3且つH1<H2であり、また、金型の付き合わせ部(E部)の空部(9)を有しているために、大円部(4)に挿入された固定ネジ(18)の溝部(23)を底部に挟持させて小長円部(5)内を滑動させることが可能で、固定ネジ(18)を小長円部(5)の端部に滑動させる(図9のGの位置)。
【0005】
上記の如く保持部(19)は外面と内面とを連通する空部(9)を有し、この連通は筐体と一体成形するための付き合わせ部によるものであるために、連通を無くすことは困難である。このような電子機器を室内の壁等に掛けずに卓上等に載置したときはもちろん、壁に掛けたときでも保持部(19)の空部(9)よりゴキブリ,蝦,毛虫等の虫が電子機器内部に入り込み、プリント基板上のリード線や電気部品を食べたり糞をして部品を腐食させ、電気的障害をもたらすことが報告されている。
第1の従来例の問題を解決するために、保持部の内面に別な部品を取り付ける方法が考えられ、市販されている。これを第2の従来例として図に基づき説明する。図12は保持部を内面より見た平面図である。図13は図12のH−H断面図である。第2の従来例の保持部(19)における筐体は第1の従来例と同じ形状であり、説明を省略する。(26)は粘着剤(27)付きヒメロンシートであり、底部(7)の内面側に張り付けられる。このヒメロンシート(26)により、ゴキブリ等が空部(9)より電子機器の内部へ進入するのを防止している。
【0006】
【発明が解決しようとする課題】
ヒメロンシート等の別部品を追加して張り付けるとその組立作業費が増加しコストアップが大きくなる。そこで、別部品の追加を行うことなくゴキブリ等の進入を防止する方法が要望されている。
【0007】
【課題を解決するための手段】
本発明はかかる点に鑑みてなされたもので、その特徴は、前記筐体に、壁掛け用の孔部または壁掛け用の凹部の側面の空部または壁掛け用の凹部の底面の片持梁を囲み且つ前記プリント基板まで延在したリブを設けたものである。
【0008】
【作用】
組立て作業が必要な別部品の追加を行うことなく、内部と外部を連通する空部を塞ぐことができる。
【0009】
【実施例】
本発明の第1の実施例を図に基づき説明する。第1の実施例は突き合わせによる側面の空部を有する保持部に適応した実施例である。図1は保持部を電子機器の外面より見た平面図である。図2は保持部を電子機器の内面より見た平面図である。図3は図1におけるA−A断面図である。尚、これらの図において従来例の図と同一箇所には同一番号を付す。
(1)は壁掛け用の保持部であり、電子機器の筐体の外面(2)より外側に突出している。外面(2)と並行な保持部(1)の上面(3)には大円部(4)と該大円部(4)の一部より延在する小長円部(5)とからなる鍵穴形状の凹部(6)が設けられている。該凹部(6)は鍵穴形状の底部(7)と側壁(8)とからなり、該側壁(8)の小長円部(5)と該小長円部(5)側の大円部(4)の半分側は欠除して空部(9)となっている。これにより、底部(7)は小長円部(5)の一端が自由端となる片持梁を有することになる。(10)は筐体内部に配設されている電気回路用のプリント基板であり、外面(2)と略並行に保持されている。(11)はリブであり、空部(9)を囲み且つプリント基板(10)まで延在する。リブ(11)で囲まれたプリント基板(10)の閉塞面(12)には部品やパターン等の電気回路手段は設けられていない。
【0010】
上記保持部(1)と係合する固定ネジ(18)の形状及び係合方法は第1の従来例と同じであるために説明を省略する。
【0011】
以上の構成により、ゴキブリ等の進入は保持部のリブ(11)とプリント基板(10)の閉塞面(12)によって遮られる。従って、取付作業が必要な別部品を追加することなく、金型の側面付き合わせ部の空部(9)より進入したゴキブリ等が電気回路手段まで到達することを防止することができる。
【0012】
本発明の第2の実施例を図に基づき説明する。第2の実施例は突き合わせによる側面の空部を有しない保持部に適応した実施例である。図4は保持部を電子機器の内面より見た平面図である。図5は保持部を電子機器の内面より見た平面図である。図6は図4におけるB−B断面図である。(13)は壁掛け用の保持部であり、電子機器の筐体の外面(2)より外側に突出している。外面(2)と並行な保持部(13)の上面(14)には大円部(15)と該大円部(15)の一部より延在する小長円部(16)とからなる鍵穴形状の孔部(17)が設けられている。(10)は筐体内部に配設されている電気回路用のプリント基板であり、外面(2)と略並行に保持されている。(11)はリブであり、孔部(17)を囲み且つプリント基板(10)まで延在する。リブ(11)で囲まれたプリント基板(10)の閉塞面(12)には部品やパターン等の電気回路手段は設けられていない。
【0013】
以上の構成により、ゴキブリ等の進入は保持部のリブ(11)とプリント基板(10)の閉塞面(12)によって遮られる。従って、取付作業が必要な別部品を追加することなく、切り欠き部(17)より進入したゴキブリ等が電気回路手段まで到達することを防止する。
【0014】
尚、第1の実施例の凹部(4)は筐体の外面(2)に突出した上面(3)に設けたが、凹部(4)は直接上面(3)に設けられても、凹部(4)の側面(8)の空部(9)を画設しプリント基板10まで延在したリブ(11)を設けることは可能である。また、第2の実施例についても同様に、直接上面(3)に設けられた孔部(17)についてもリブ(11)を設けることができる。
【0015】
また、第1,第2の実施例では凹部(4)あるいは孔部(17)の形状を鍵穴形状にしたが、この形状は保持部と係合するものの形状に適合した形状を成すものである。例えば、板金のL字形部と係合する保持部の凹部あるいは孔部の形状は四角形が適合する。
【0016】
【発明の効果】
以上の構成により、ゴキブリ等が壁掛け用の保持部より進入しても、プリント基板とリブに遮られて、電気回路手段に損傷を与えることはなくなる。
【図面の簡単な説明】
【図1】本発明の第1の実施例の外面より見た平面図である。
【図2】第1の実施例の内面より見た平面図である。
【図3】図1のA−A断面図である。
【図4】第2の実施例の外面より見た平面図である。
【図5】第2の実施例の内面より見た平面図である。
【図6】図4のB−B断面図である。
【図7】第1の従来例の外面より見た平面図である。
【図8】第1の従来例の内面より見た平面図である。
【図9】図7のC−C断面図である。
【図10】図6のD−D断面図である。
【図11】図8の金型構造を示す断面図である。
【図12】第2の従来例の内面より見た平面図である。
【図13】図12のE−E断面図である。
【符号の説明】
1 保持部
2 外面
3 上面
4 凹部
8 側面
9 空部
10 プリント基板
11 リブ
17 孔部
[0001]
[Industrial applications]
The present invention relates to an electronic device having a hole or a recess for hanging on a wall.
[0002]
[Prior art]
2. Description of the Related Art There are many electronic devices on the market in which a head such as a nail or a screw fixed to an indoor wall or a pillar is engaged with a holding portion having a hole or a recess for hanging on a wall to hold the head on the wall. This wall-mounted holder will be described as a first conventional example with reference to the drawings. FIG. 7 is a plan view of the holding unit viewed from the outer surface of the electronic device. FIG. 8 is a plan view seen from the inner surface of the electronic device. FIG. 9 is a sectional view taken along line CC in FIG. FIG. 10 is a sectional view taken along line DD in FIG. In FIGS. 7, 9, and 10, the two-dot chain line is a fixing screw (18), which is screwed to a wall, a pillar, or the like in the room, and is engaged with a wall-hanging holding portion. (19) is a wall-mounted holding portion, which protrudes outside the outer surface (2) of the housing of the electronic device. The upper surface (3) of the holding portion (19) parallel to the outer surface (2) includes a large circle portion (4) and a small oval portion (5) extending from a part of the large circle portion (4). A keyhole-shaped recess (6) is provided. The recess (6) comprises a keyhole-shaped bottom (7) and a side wall (8). The side wall (8) has a small oval (5) and a large oval (5) on the side of the small oval (5). The half side of 4) is a hollow space (9) penetrated. As a result, the bottom (7) has a cantilever in which one end of the small oval (5) is a free end. FIG. 11 shows the butting state of the mold in the cross section shown in FIG. As shown in FIG. 11, the holding part (19) is injection-molded integrally with the housing by a fixed die (20) and a movable die (21), and the empty part (9) is moved with the fixed die (20). The outer surface and the inner surface communicate with each other by the butting portion (E portion) of the mold (21).
[0003]
The shape of the fixing screw (18) will be described. The fixing screw (18) includes a head (22) and a screw portion (23), and a minus-shaped driver groove (24) that can be screwed with a coin into the circular top surface of the head (22); The side face of (22) has a groove (25) extending in the circumferential direction, the diameter D1 of the head (22) is smaller than the minimum diameter D2 of the great circle (4) of the holding part (19), It is larger than the minimum diameter D3 of the oval (5) (D2>D1> D3). The height H1 of the columnar shape on the top end side of the head (22) divided by the groove (25) is the height of an empty space sandwiched by the thickness of the upper surface (3) and the bottom (7) of the holding portion (19). Less than H2 (H1 <H2). The width W1 of the groove (24) is larger than the thickness H3 of the bottom (7) of the holding portion (19) (W1> H3), and the diameter D4 of the cylinder formed on the bottom surface of the groove (24) is small oval ( 5) smaller than the minimum diameter D3 (D4 <D3). The screw portion (23) is provided with one type of self-tapping screw (a screw having a sharp tip and requiring no female screw for a prepared hole such as a wall).
[0004]
A method of engaging the fixing screw (18) with the holding portion (19) formed as described above will be described. The head (20) of the fixing screw (18) is inserted into the great circle part (4) of the holding part (19) (the position of F in FIG. 9). This insertion is possible because D2> D1. Since W1> H3 and D4 <D3 and H1 <H2, and because there is an empty portion (9) of the mating portion (E portion) of the mold, it was inserted into the great circle portion (4). The groove (23) of the fixing screw (18) can be slid in the small oval (5) by holding the groove (23) at the bottom, and the fixing screw (18) slides on the end of the small oval (5). (Position G in FIG. 9).
[0005]
As described above, the holding portion (19) has the empty portion (9) that communicates the outer surface and the inner surface, and the communication is performed by the mating portion for integrally molding with the housing. It is difficult. Insects such as cockroaches, shrimp, caterpillars, etc., from the empty space (9) of the holding portion (19) even when such an electronic device is mounted on a table or the like without hanging on an indoor wall or the like. Have been reported to enter electronic devices and eat or drip lead wires and electrical components on printed circuit boards, corroding the components and causing electrical disturbances.
In order to solve the problem of the first conventional example, a method of attaching another component to the inner surface of the holding portion has been considered and is commercially available. This will be described as a second conventional example with reference to the drawings. FIG. 12 is a plan view of the holding unit viewed from the inner surface. FIG. 13 is a sectional view taken along line HH of FIG. The housing of the holding portion (19) of the second conventional example has the same shape as that of the first conventional example, and the description is omitted. (26) is a hymeron sheet with an adhesive (27), which is attached to the inner surface of the bottom (7). The hymeron sheet (26) prevents cockroaches and the like from entering the inside of the electronic device from the empty space (9).
[0006]
[Problems to be solved by the invention]
If another part such as a hymeron sheet is additionally attached, the assembling work cost increases and the cost increases. Therefore, there is a demand for a method for preventing the invasion of cockroaches or the like without adding another component.
[0007]
[Means for Solving the Problems]
The present invention has been made in view of such a point, and a feature of the present invention is that the casing surrounds a hollow portion on the side surface of the hole for wall hanging or the concave portion for wall hanging or a cantilever on the bottom surface of the concave portion for wall hanging. Further, a rib extending to the printed board is provided.
[0008]
[Action]
The space that connects the inside and the outside can be closed without adding another part that requires an assembling operation.
[0009]
【Example】
A first embodiment of the present invention will be described with reference to the drawings. The first embodiment is an embodiment adapted to a holding portion having a space on a side surface by butting. FIG. 1 is a plan view of the holding unit viewed from the outer surface of the electronic device. FIG. 2 is a plan view of the holding unit viewed from the inner surface of the electronic device. FIG. 3 is a sectional view taken along line AA in FIG. In these figures, the same parts as those in the conventional example are denoted by the same reference numerals.
(1) is a wall-mounted holder, which protrudes outward from an outer surface (2) of the housing of the electronic device. The upper surface (3) of the holding portion (1) parallel to the outer surface (2) includes a large circle portion (4) and a small oval portion (5) extending from a part of the large circle portion (4). A keyhole-shaped recess (6) is provided. The recess (6) comprises a keyhole-shaped bottom (7) and a side wall (8). The side wall (8) has a small oval (5) and a large oval (5) on the side of the small oval (5). The half side of 4) is omitted to form an empty space (9). As a result, the bottom (7) has a cantilever in which one end of the small oval (5) is a free end. Reference numeral (10) denotes a printed circuit board for an electric circuit provided inside the housing, which is held substantially in parallel with the outer surface (2). (11) is a rib, which surrounds the empty space (9) and extends to the printed circuit board (10). No electric circuit means such as components and patterns are provided on the closed surface (12) of the printed circuit board (10) surrounded by the ribs (11).
[0010]
The shape and the method of engagement of the fixing screw (18) engaged with the holding portion (1) are the same as those of the first conventional example, and therefore the description is omitted.
[0011]
With the above configuration, the entry of cockroaches and the like is blocked by the rib (11) of the holding portion and the closed surface (12) of the printed circuit board (10). Therefore, it is possible to prevent cockroaches and the like that have entered from the empty portion (9) of the side-to-side mating portion of the mold from reaching the electric circuit means without adding another component that requires an attaching operation.
[0012]
A second embodiment of the present invention will be described with reference to the drawings. The second embodiment is an embodiment adapted to a holding portion having no side space due to butting. FIG. 4 is a plan view of the holding unit viewed from the inner surface of the electronic device. FIG. 5 is a plan view of the holding unit viewed from the inner surface of the electronic device. FIG. 6 is a sectional view taken along line BB in FIG. Reference numeral (13) denotes a wall-mounted holder, which protrudes outside the outer surface (2) of the housing of the electronic device. The upper surface (14) of the holding portion (13) parallel to the outer surface (2) includes a large circle portion (15) and a small oval portion (16) extending from a part of the large circle portion (15). A keyhole-shaped hole (17) is provided. Reference numeral (10) denotes a printed circuit board for an electric circuit provided inside the housing, which is held substantially in parallel with the outer surface (2). (11) is a rib, which surrounds the hole (17) and extends to the printed circuit board (10). No electric circuit means such as components and patterns are provided on the closed surface (12) of the printed circuit board (10) surrounded by the ribs (11).
[0013]
With the above configuration, the entry of cockroaches and the like is blocked by the rib (11) of the holding portion and the closed surface (12) of the printed circuit board (10). Therefore, it is possible to prevent cockroaches and the like that have entered from the notch portion (17) from reaching the electric circuit means without adding another component that requires an attaching operation.
[0014]
Although the concave portion (4) of the first embodiment is provided on the upper surface (3) projecting from the outer surface (2) of the housing, the concave portion (4) may be provided directly on the upper surface (3). It is possible to define a void (9) on the side surface (8) of 4) and provide a rib (11) extending to the printed circuit board 10. Similarly, in the second embodiment, the ribs (11) can be provided directly on the holes (17) provided on the upper surface (3).
[0015]
Further, in the first and second embodiments, the shape of the concave portion (4) or the hole portion (17) is a keyhole shape, but this shape is adapted to the shape of the one engaging with the holding portion. . For example, a square shape is suitable for the shape of the concave portion or hole of the holding portion that engages with the L-shaped portion of the sheet metal.
[0016]
【The invention's effect】
According to the above configuration, even if a cockroach or the like enters from the holding portion for wall hanging, it is not interrupted by the printed circuit board and the ribs, and the electric circuit means is not damaged.
[Brief description of the drawings]
FIG. 1 is a plan view seen from the outer surface of a first embodiment of the present invention.
FIG. 2 is a plan view seen from the inner surface of the first embodiment.
FIG. 3 is a sectional view taken along line AA of FIG. 1;
FIG. 4 is a plan view seen from the outer surface of a second embodiment.
FIG. 5 is a plan view seen from the inner surface of the second embodiment.
FIG. 6 is a sectional view taken along line BB of FIG. 4;
FIG. 7 is a plan view of the first conventional example viewed from the outer surface.
FIG. 8 is a plan view seen from the inner surface of the first conventional example.
9 is a sectional view taken along the line CC in FIG. 7;
FIG. 10 is a sectional view taken along line DD of FIG. 6;
FIG. 11 is a sectional view showing the mold structure of FIG. 8;
FIG. 12 is a plan view seen from the inner surface of a second conventional example.
FIG. 13 is a sectional view taken along the line EE of FIG. 12;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Holding part 2 Outer surface 3 Upper surface 4 Concave part 8 Side surface 9 Empty part 10 Printed circuit board 11 Rib 17 Hole part

Claims (3)

装置の筐体と、該筐体の内部に配設されるプリント基板とを備え、前記筐体は壁掛け用の孔部を有する電子機器装置において、
前記筐体に、前記孔部を囲み且つ前記プリント基板まで延在したリブを設けたことを特徴とする電子機器装置。
An electronic device including a housing of the device and a printed circuit board disposed inside the housing, wherein the housing has a hole for hanging on a wall.
An electronic device, wherein the housing is provided with a rib surrounding the hole and extending to the printed circuit board.
装置の筐体と該筐体の内部に配設されるプリント基板とを備え、前記筐体は壁掛け用の凹部を有し、該凹部は側壁に貫設された空部を有する電子機器装置において、
前記筐体に、前記空部を囲み且つ前記プリント基板まで延在したリブを設けたことを特徴とする電子機器装置。
An electronic device having a housing of the device and a printed circuit board disposed inside the housing, wherein the housing has a recess for hanging on a wall, and the recess has a hollow portion penetrating through a side wall. ,
An electronic device, wherein the housing is provided with a rib surrounding the space and extending to the printed circuit board.
装置の筐体と該筐体の内部に配設されるプリント基板とを備え、前記筐体は壁掛け用の凹部を有し、該凹部は底部に片持梁を有する電子機器装置において、
前記筐体に、前記片持梁を囲み且つ前記プリント基板まで延在したリブを設けたことを特徴とする電子機器装置。
An electronic device having a housing of the device and a printed circuit board disposed inside the housing, wherein the housing has a recess for hanging on a wall, and the recess has a cantilever at the bottom.
An electronic device, wherein the housing is provided with a rib surrounding the cantilever and extending to the printed circuit board.
JP12406394A 1994-06-06 1994-06-06 Electronic device having a hole or recess for wall hanging Expired - Fee Related JP3547793B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12406394A JP3547793B2 (en) 1994-06-06 1994-06-06 Electronic device having a hole or recess for wall hanging

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12406394A JP3547793B2 (en) 1994-06-06 1994-06-06 Electronic device having a hole or recess for wall hanging

Publications (2)

Publication Number Publication Date
JPH07336060A JPH07336060A (en) 1995-12-22
JP3547793B2 true JP3547793B2 (en) 2004-07-28

Family

ID=14876043

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12406394A Expired - Fee Related JP3547793B2 (en) 1994-06-06 1994-06-06 Electronic device having a hole or recess for wall hanging

Country Status (1)

Country Link
JP (1) JP3547793B2 (en)

Also Published As

Publication number Publication date
JPH07336060A (en) 1995-12-22

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