JPS63134792A - Fixture to tunnel wall surface of tunnel leakage preventive panel and mounting method - Google Patents
Fixture to tunnel wall surface of tunnel leakage preventive panel and mounting methodInfo
- Publication number
- JPS63134792A JPS63134792A JP61281331A JP28133186A JPS63134792A JP S63134792 A JPS63134792 A JP S63134792A JP 61281331 A JP61281331 A JP 61281331A JP 28133186 A JP28133186 A JP 28133186A JP S63134792 A JPS63134792 A JP S63134792A
- Authority
- JP
- Japan
- Prior art keywords
- mounting
- panel
- tunnel
- tunnel wall
- space
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims description 11
- 230000003449 preventive effect Effects 0.000 title 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 19
- 238000012856 packing Methods 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 8
- 230000002265 prevention Effects 0.000 claims description 8
- 238000009434 installation Methods 0.000 claims description 7
- 229910052751 metal Inorganic materials 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 7
- 238000010079 rubber tapping Methods 0.000 claims description 7
- 239000003566 sealing material Substances 0.000 claims description 7
- 238000010276 construction Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002352 surface water Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
Landscapes
- Lining And Supports For Tunnels (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
（発明の目的）
（産業上の利用分野）
本発明はトンネル覆工からの漏水に対する漏水防止パネ
ルの取り付け金具及び取り付け方法に関する。DETAILED DESCRIPTION OF THE INVENTION (Objective of the Invention) (Industrial Application Field) The present invention relates to a fitting and a method for mounting a water leakage prevention panel against water leakage from a tunnel lining.
（従来技術）
一般にトンネル等コンクリート構造物は年月を経ると亀
裂が生じたり、老化することにより漏水が生じる。(Prior Art) Concrete structures such as tunnels generally develop cracks and water leakage over time due to aging.
通常行われる止水及び防水の方法は、部分的な場合には
、その漏水個所を含め、近辺のコンクリート部分を斬り
とり、当該個所に止水材を当てる方法、又は漏水個所に
樋などを当てがい排水路等へ漏水を導水する線導水工法
等が採用され、覆工の多くの部分から漏水するような場
合には面導水工法が採用されている。The usual method of water-stopping and waterproofing is to cut out the nearby concrete area, including the leakage point, and apply a water-stopping material to the leakage point, or to apply a gutter etc. to the leakage point. Line water conduction methods are used to direct leakage water to insulator drainage channels, etc., and surface water conduction methods are used when water leaks from many parts of the lining.
面導水工法はトンネル壁面に漏水防止パネルを取り付け
て壁面を覆い、壁面に向い合う面を導水面として漏水を
道路側端部などに流す方法である。The surface water conduit method is a method in which a leak prevention panel is attached to the tunnel wall to cover the wall, and the surface facing the wall is used as a water conduit surface to direct leakage water to the edge of the road.
（発明が解決しようとする問題点）
しかしながら、パネルをトンネル壁面に取り付けるには
、第６図に示すようにパネル本体１３に穴をあけ、壁面
にアンカーボルト２１を打ち込むことにより行われるた
め、このままではトンネル壁面からの漏水は、再び大部
分より漏水する。そのため穴の部分の漏水防１ト処理策
が必要となり、施工能率を著しく低下させる。(Problem to be Solved by the Invention) However, in order to attach the panel to the tunnel wall, as shown in FIG. 6, holes are made in the panel body 13 and anchor bolts 21 are driven into the wall. In this case, the water leaking from the tunnel wall will again leak from the majority of the tunnel. Therefore, it is necessary to take measures to prevent water leakage around the holes, which significantly reduces construction efficiency.
本発明は、このような問題点を新な促案により解決せん
とするものである。The present invention aims to solve these problems by providing a new proposal.
〔発明のＭ４成〕
（問題点を解決するための手段）
上記問題点は、漏水防止パネルを壁面に取り付けるにあ
たり、つぎの構成要件を有する取り付け金具を用いるこ
とにより解消される。[M4 configuration of the invention] (Means for solving the problem) The above problem can be solved by using a mounting fitting having the following structural requirements when attaching the water leakage prevention panel to the wall surface.
寸なわら、板状の両端をパネル取り付番ノしろとし、取
り付けしろ間を凹に形成し、凹の底部をトンネル壁面取
り付Ｕ部とした金具の取り付けしろの表面にパッキング
材、裏面にシール材を一体化してなる取り付け金具を用
いることである。In short, both ends of the plate are used as panel mounting holes, the space between the mounting holes is formed into a concave shape, and the bottom of the concave is used as a U part for mounting on the tunnel wall. Packing material is placed on the surface of the mounting space for the metal fittings, and packing material is placed on the back side. The method is to use a mounting bracket that integrates the sealing material.
（作用）
この取り付け金具を用いるとパネルは取り付け金具の取
り付けしろに取り付けられるとともに取り付け金具の取
り付【ノ部をトンネル壁面にアンカーボルト等を用いて
取り付けられることになるのでパネルにアンカーボルト
等の打ち込み穴をあける必要がなくなる。(Function) When using this mounting bracket, the panel can be attached to the mounting clearance of the mounting bracket, and the mounting bracket will be attached to the tunnel wall using anchor bolts, etc. No need to drill holes.
（実施例） つぎに本発明の実施例を図面に基いて説明する。(Example) Next, embodiments of the present invention will be described based on the drawings.
第１図は本発明に係る取り付け金具の平面図、第２図は
第１図の△−Ａ断面図である。FIG. 1 is a plan view of a mounting fitting according to the present invention, and FIG. 2 is a sectional view taken along the line Δ-A in FIG. 1.
１は板体、２．３はパッキング、４．５リシール材であ
る。1 is a plate, 2.3 is a packing, and 4.5 is a resealing material.
板体１は金属製にして両端をパネル取り付けしろ６．７
とし、取り付けしろ６．７間を凹に形成し、この底部を
１−ンネル壁面取り付け部８としている。９はボルト穴
で、このボルト穴９はトンネル壁面への取り付けの際に
設けてもよいが、この実施例では央部より片方の取り付
けしろ７に近い位四に予め穿孔しである。Plate 1 should be made of metal and both ends should be attached to panels 6.7
The space between the mounting allowances 6 and 7 is formed into a concave shape, and the bottom thereof is used as a wall surface mounting portion 8. Reference numeral 9 denotes a bolt hole, and this bolt hole 9 may be provided at the time of attachment to the tunnel wall surface, but in this embodiment, it is pre-drilled at a position 4 near the attachment margin 7 on one side from the center.
パッキング２．３は取り付けしろ６．７の表面に接着し
て一体化され、シール材４．５は取り付けしろ６．７の
裏面に溶着された角型鋼管１０．１１に充填されて一体
化されている。The packing 2.3 is bonded and integrated with the surface of the mounting gap 6.7, and the sealing material 4.5 is filled and integrated into the square steel pipe 10.11 welded to the back surface of the mounting gap 6.7. ing.
このようにして全体としてトンネル漏水防止パネルの１
−ンネル壁面への取り付け金具１２を形成Ｊる。ここで
シール材４．５は後述するようにドリルタッピングボル
ト等を受けた場合に取り付けしろ６．７にあけられた穴
をシールする意味合を有するのでこのように表現した。In this way, the tunnel water leakage prevention panel as a whole is
- form a fitting 12 for mounting on the wall of the tunnel; Here, the sealing material 4.5 is expressed in this way because it has the meaning of sealing the hole drilled in the mounting hole 6.7 when a drill tapping bolt or the like is received as described later.
つぎに、第３図、第４図、第５図に仙さ゛、本発明に係
るパネルの取り付け方法を示す。Next, FIGS. 3, 4, and 5 show a method of attaching a panel according to the present invention.
第３図は［−ンネル壁面に漏水防止パネルが本発明に係
る取り付け金具を用いて取り付けられているところを示
す第４図概略図のＣ部分の詳細を示す断面図であり、又
、第５図のＢ−８断面図である。FIG. 3 is a cross-sectional view showing the detail of the C portion of the schematic diagram of FIG. It is a sectional view taken along line B-8 in the figure.
まず、予め端かに取り付け金具１２を、取り付け金具１
２の一端の取り付けしろ６にパッキング２をはさむよう
に重ね、ドリルタッピングボルト１４を用いて取り付け
たパネル１３．１３・・・を用意する。ドリルタッピン
グボルト１４は先端にドリル１５の付いたボルトである
。この施工例に用いたパネル１３．１３・・・はアルミ
等の金属恢１５，１（ｊ−−−１／、１ ／・・・に助
然材１８をはさむようにして形成され、パネルの接続の
便のため、端部１９、凸部２０が形成されているが、甲
なる板体であってもよく、凹部や凸部を右さないもので
あってもよい。First, attach the mounting bracket 12 to the end in advance.
Prepare panels 13, 13, etc., which are stacked so that the packing 2 is sandwiched between the mounting allowance 6 at one end of the panels 2 and attached using drill tapping bolts 14. The drill tapping bolt 14 is a bolt with a drill 15 attached to the tip. The panels 13, 13... used in this construction example are formed by sandwiching the supporting material 18 between the metal panels 15, 1 (j---1/, 1/...) such as aluminum, and the panels are connected. For convenience, an end portion 19 and a convex portion 20 are formed, but the plate may be used as a shell, or the concave portion or the convex portion may not be provided.
このようにして取り付け金具１２を固定されたパネル１
３．１３・・・はトンネル壁面につぎのようにして取り
付けられる。Panel 1 with mounting bracket 12 fixed in this way
3.13... is attached to the tunnel wall as follows.
パネル施工の手順は、この例では１〜ンネル壁面に対し
て上から下へ向って行うため、取り付け金具１２は取り
イ→レプられるパネル１３の下方に位置するように、取
り付け金具１２の取り付け部８に穿孔されたボルト穴９
を介してアンカーボルト２１を打ち込んで取り付ける。In this example, the panel construction procedure is performed from top to bottom on the wall surface of the wall. Bolt hole 9 drilled in 8
Attach by driving the anchor bolt 21 through the hole.
ここでボルト穴は偏心して穿れているが、必ずしも偏心
させる必要はなく、このようにするとアンカーボルトを
締め付けることに反対の端方は浮き加減となり、パネル
によく密接する。Here, the bolt holes are drilled eccentrically, but it is not necessarily necessary to do so eccentrically; by doing so, the end opposite to the direction in which the anchor bolt is tightened will be loose and will come in close contact with the panel.
ついでパネル１３の端方、取り付け金具１２（図示して
ない）が取り付けられていない端方をパネル１３の端方
に接続する。この実施例ではそれぞれに凹部１９、凸部
２０が形成されているので嵌合することにより接続し、
パネル１３で１−ンネル壁面に取り（ｊけられた取りｆ
＝Ｉり金具１２を覆い、取り付け金具１２の他端方の取
りイ」けしろ７に位置する個所をドリルタッピングボル
ト１４を用いて取り付けしろ７に固定するとともにパネ
ル１３の他端方に取り付けられている取り付（プ金具１
２（図示してない）の取り付（ブ部８（図示してない）
をパネル１３に取り付けられた取り付け金具１３と同様
にアンカーボルトを用いて１〜ンネル壁而に取り付ける
。ここで２２．２３はパネル１３．１３・・・の接続部
よりの漏水を予防するための防水シートである。また取
り（、ｔ ｌプ金具の取り付（プしろへのパネルの取り
付けは必ずし６ドリルタツピングボルトを用いなくても
よいが、ドリルタッピングボルトを用いると穴まわりの
処理を必要としない。Then, the end of the panel 13, the end where the mounting fittings 12 (not shown) are not attached, is connected to the end of the panel 13. In this embodiment, a concave portion 19 and a convex portion 20 are formed on each side, so they are connected by fitting,
Panel 13 is installed on the 1-channel wall (j cut out f
= I cover the mounting bracket 12, fix the part located in the mounting bracket 7 on the other end of the mounting bracket 12 to the mounting bracket 7 using a drill tapping bolt 14, and attach it to the other end of the panel 13. Installation (Plug fitting 1)
2 (not shown) (button part 8 (not shown))
is attached to the channel wall using anchor bolts in the same way as the mounting fittings 13 attached to the panel 13. Here, 22, 23 is a waterproof sheet for preventing water leakage from the connecting portions of the panels 13, 13, . . . . Also, attaching the pull fittings (it is not always necessary to use 6-drill tapping bolts to attach the panel to the pull-out bracket, but if you use drill tapping bolts, there is no need to prepare around the holes.
このようにしてこれらの作業を繰り返すことにより、ト
ンネル壁面に対して第５図に示すように上から下へのパ
ネルＤ、Ｅ、Ｆの取り付けが進行する。By repeating these operations in this way, panels D, E, and F are attached to the tunnel wall from top to bottom as shown in FIG. 5.
なお、この施工例では、パネルに予め取り付け金具を取
りつけたパネルを取り付け金具の取り付け部を介してト
ンネル壁面に取っ付番プているが、予め取り付け金具を
トンネル壁面に取りつけておいてから、取り付け金具の
取り付けしろにパネルを固定する手順を踏んでも差支え
ないものである。In addition, in this construction example, a panel with mounting hardware attached in advance is attached to the tunnel wall via the mounting part of the mounting bracket, but it is necessary to attach the mounting bracket to the tunnel wall in advance and then install it. There is no problem even if you take the steps to fix the panel in the space where the metal fittings are attached.
〔発明の効果〕
本発明は上述のようにしてなるのでつどの効果を有する
。[Effects of the Invention] Since the present invention is constructed as described above, it has various effects.
■ 取り付け金具は、パネルの取り付けしろとトンネル
壁面への取り付け部とからなっているので予めパネルを
パネル取り付（）しろを用いて取り付け金具に取り付け
ておくこともできるし、取り付け金具をトンネル壁面に
取りｆ−ｊけてからパネルを取り付けしろに取り付ける
こともできる。■ The mounting bracket consists of the panel mounting allowance and the tunnel wall mounting part, so you can attach the panel to the mounting bracket in advance using the panel mounting clearance, or attach the mounting bracket to the tunnel wall. It is also possible to attach the panel to the f-j after it has been installed.
■ パネルのトンネル壁面への取り付けは、パネルに取
り付けられた取り付け金具の取り付け部をトンネル壁面
に取り付けることにより行われるのでパネルに従来のよ
うにアンカーポル］〜を打ら込む穴を設ける必要がなく
、穴の部分の漏水防１１処理策を必要としなくなった。■ The panel is attached to the tunnel wall by attaching the mounting part of the mounting bracket attached to the panel to the tunnel wall, so there is no need to make holes in the panel to drive the anchor holes as in the past. 11 measures to prevent water leakage around holes are no longer required.
■ パネルは取り付け金具の取り付けしろに取りイζ４
ロノれるが、取り付けしろの表面にパッキング、整面に
シール材が一体化されているので、［−ンネル壁面から
のパネルと取りイ」りしろ間は完全に水密となり、取り
付けのためのボルトにより生ずる大部分も取っ付【）し
ろ裏面からシール月で密封されることになるのでトンネ
ル壁面からの漏水に対処できる。■ Remove the panel from the mounting bracket ζ4
However, since the packing is integrated on the surface of the installation clearance and the sealing material is integrated on the flat surface, the space between the panel and removal from the wall wall is completely watertight, and the bolts for installation Since most of the water generated will be sealed with a seal from the back of the mounting area, leakage from the tunnel wall can be prevented.
■ 取り付け金具の壁面の取り付けは凹に形成された底
部の取り付け部を用いて行われるので、ボルト頭が飛び
出していても取り付けられるパネルの邪魔にならない。■ The mounting bracket is attached to the wall using the concave bottom mounting section, so even if the bolt head protrudes, it will not interfere with the panel being attached.
■ パネルが取り付け金具の取り付けしろに取り付けら
れるので直接トンネル壁面に取り付けるのに比し、取り
付け、取りはずしが容易である。■ Since the panel is attached to the mounting bracket, it is easier to attach and remove than when it is attached directly to the tunnel wall.
図面は本発明の実施例を示すもので、第１図は取り付け
金具の平面図、第２図は第１図のＡ−Ａ断面図、第３図
は施工状態を示ず第４図Ｃ部分の詳細拡大断面図であり
、第５図のＢ−８拡大断面図、第４図はトンネル正面の
概略図、第５図は取り付け金具を用いてパネルが上から
下へ取っ付ｋＪられている状態を示すトンネルの内面図
、第６図はパネルをトンネル壁面に取り付ける従来例図
である。
図面において、１は板体、２．３はパッキング、４．５
はシール材、６．７は取り付けしろ、８は取り付け部、
１２は取り（＝Ｊ ＋）金具、１３．１３・・・はパネ
ルである。
特許出願人 ショーボンド建設株式会社代理人弁理士
宇 野 晴 海第３図
第４図
Ｆ １２
第６図The drawings show an embodiment of the present invention, and FIG. 1 is a plan view of the mounting bracket, FIG. 2 is a sectional view taken along line A-A in FIG. 1, and FIG. 3 is a section C in FIG. This is a detailed enlarged sectional view of B-8 in Fig. 5, Fig. 4 is a schematic view of the front of the tunnel, and Fig. 5 shows the panel being installed from top to bottom using mounting brackets. FIG. 6 is an inner view of the tunnel showing the state of the tunnel, and is a diagram of a conventional example in which panels are attached to the tunnel wall surface. In the drawings, 1 is a plate, 2.3 is a packing, 4.5
is the sealing material, 6.7 is the installation part, 8 is the installation part,
12 is a handle (=J +) metal fitting, and 13, 13, . . . are panels. Patent Applicant: Shobond Construction Co., Ltd. Representative Patent Attorney Harumi Uno Figure 3 Figure 4 F 12 Figure 6
Claims (1)
しろ間を凹に形成し、凹の底部をトンネル壁面取り付け
部とした金具の取り付けしろの表面にパッキング材、裏
面にシール材をそれぞれ一体化したことを特徴とするト
ンネル漏水防止パネルのトンネル壁面への取り付け金具
。 ［２］壁面取り付け部が央部より片方の取り付けしろに
近い位置にボルト穴をあけられている特許請求の範囲第
１項に記載のトンネル漏水防止パネルのトンネル壁面へ
の取り付け金具。 ［３］板状の両端をパネル取り付けしろとし、取り付け
しろ間を凹に形成し、凹の底部をトンネル壁面取り付け
部とした金具の取り付けしろの表面にパッキング材、裏
面にシール材をそれぞれ一体化した取り付け金具の一方
の取り付けしろにパネルの一端方を取りを付け、取り付
け金員の取り付け部をトンネル壁面にボルトを用いて取
り付け、上記パネルに別のパネルを上記取り付け金具を
覆うようにして接続し、上記取り付け金具の他方の取り
付けしろに位置する個所を該取り付けしろに取り付け、
上記パネルに接続したパネルの他端方を上記取り付け金
具と同様に形成された取り付け金具の一方の取り付けし
ろに取り付け、この取り付けしろの取り付け部をボルト
を用いてトンネル壁面に取り付けることを特徴とするト
ンネル漏水防止パネルのトンネル壁面への取り付け方法
。 ［４］パネルの取り付け金具の取り付けしろへの取り付
けは、ドリルタッピングボルトにより行われる特許請求
の範囲第３項に記載のトンネル漏水防止パネルのトンネ
ル壁面への取り付け方法。[Claims] [1] Both ends of the plate are used for panel mounting, the space between the mounting spaces is formed into a recess, and the bottom of the recess is used as a tunnel wall mounting part.A packing material is placed on the surface of the mounting space of the metal fitting, and a packing material is formed on the back surface of the mounting space. A fitting for attaching a tunnel water leakage prevention panel to a tunnel wall, which features integrated sealing materials. [2] The fitting for attaching the tunnel water leakage prevention panel to the tunnel wall according to claim 1, wherein the wall attachment portion has bolt holes drilled at a position closer to one attachment margin than the center portion. [3] Both ends of the plate are used for panel installation, the space between the installation spaces is formed into a recess, and the bottom of the recess is used as the tunnel wall mounting area. Packing material is integrated on the surface of the mounting space of the metal fittings, and sealing material is integrated on the back side. Attach one end of the panel to the mounting allowance of one of the mounting brackets, attach the mounting part of the mounting bracket to the tunnel wall using bolts, and connect another panel to the above panel by covering the mounting bracket. and attach the part located in the other mounting clearance of the above-mentioned mounting bracket to the mounting clearance,
The other end of the panel connected to the above-mentioned panel is attached to one mounting space of a mounting bracket formed in the same manner as the above-mentioned mounting bracket, and the mounting portion of this mounting space is attached to the tunnel wall surface using bolts. How to attach tunnel water leakage prevention panels to tunnel walls. [4] The method for attaching a tunnel water leakage prevention panel to a tunnel wall surface according to claim 3, wherein the attachment of the panel attachment fittings to the attachment margin is performed using a drill tapping bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61281331A JPS63134792A (en) | 1986-11-26 | 1986-11-26 | Fixture to tunnel wall surface of tunnel leakage preventive panel and mounting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61281331A JPS63134792A (en) | 1986-11-26 | 1986-11-26 | Fixture to tunnel wall surface of tunnel leakage preventive panel and mounting method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63134792A true JPS63134792A (en) | 1988-06-07 |
| JPH0460199B2 JPH0460199B2 (en) | 1992-09-25 |
Family
ID=17637613
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61281331A Granted JPS63134792A (en) | 1986-11-26 | 1986-11-26 | Fixture to tunnel wall surface of tunnel leakage preventive panel and mounting method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63134792A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0415700U (en) * | 1990-05-25 | 1992-02-07 | ||
| JP2007159814A (en) * | 2005-12-14 | 2007-06-28 | Pentax Corp | Endoscope liquid applicator |
| JP2023030498A (en) * | 2021-08-23 | 2023-03-08 | 株式会社ケー・エフ・シー マスディック | Thermally insulated surface water guide panel for tunnel leakage prevention |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011231531A (en) * | 2010-04-28 | 2011-11-17 | Kizai Tecto Corp | Flow end treatment unit with side ditch having grating for surface headrace construction method in tunnel |
-
1986
- 1986-11-26 JP JP61281331A patent/JPS63134792A/en active Granted
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0415700U (en) * | 1990-05-25 | 1992-02-07 | ||
| JP2007159814A (en) * | 2005-12-14 | 2007-06-28 | Pentax Corp | Endoscope liquid applicator |
| JP2023030498A (en) * | 2021-08-23 | 2023-03-08 | 株式会社ケー・エフ・シー マスディック | Thermally insulated surface water guide panel for tunnel leakage prevention |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0460199B2 (en) | 1992-09-25 |
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