JPH0516400Y2 - - Google Patents
Info
- Publication number
- JPH0516400Y2 JPH0516400Y2 JP1983056671U JP5667183U JPH0516400Y2 JP H0516400 Y2 JPH0516400 Y2 JP H0516400Y2 JP 1983056671 U JP1983056671 U JP 1983056671U JP 5667183 U JP5667183 U JP 5667183U JP H0516400 Y2 JPH0516400 Y2 JP H0516400Y2
- Authority
- JP
- Japan
- Prior art keywords
- ladder
- frame
- bars
- bar
- auxiliary rod
- 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 - Lifetime
Links
- 230000002265 prevention Effects 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Ladders (AREA)
- Emergency Lowering Means (AREA)
Description
【考案の詳細な説明】
本考案は、中高層建築物の避難装置、特に折畳
自在な吊下式梯子を収納した避難装置の改良に関
する。[Detailed Description of the Invention] The present invention relates to an evacuation system for medium-to-high-rise buildings, particularly to an improvement of an evacuation system that accommodates a foldable hanging ladder.
近年住宅の高層化が盛んであるが、安全性の点
から各階のベランダに避難装置を設けることが義
務づけられている。この避難装置は非常時におい
て、該避難装置内に装備されている梯子を階下に
垂下し、この梯子を伝つて階下に避難する構造の
ものであるが、建設費の関係から梯子として安価
な縄梯子（チエーンを使用したものが一般的）が
使用されている。 In recent years, residential buildings have become increasingly high-rise, and from the standpoint of safety, evacuation devices are required to be installed on the balconies of each floor. In the event of an emergency, this evacuation device has a structure in which a ladder installed in the evacuation device is hung down to the floor, and people can evacuate to the downstairs via this ladder. However, due to the construction cost, a rope ladder is an inexpensive ladder. (generally using a chain) is used.
ところで避難装置の取付位置としては、各階の
壁側に設置することが安全対策上好ましい。すな
わち、梯子を垂下したときに壁を梯子の揺れ止め
として利用できるからである。ところが設計上、
必ずしも避難装置を壁側に設置することができな
いことがある。この場合、梯子が縄梯子である
と、下りるときに梯子の下方が揺れて迅速なる避
難ができないこととなり、安全性に問題が生じ
た。 By the way, from the viewpoint of safety, it is preferable to install the evacuation device on the wall side of each floor. That is, when the ladder is lowered, the wall can be used to prevent the ladder from swinging. However, by design,
It may not always be possible to install the evacuation device on the wall. In this case, if the ladder was a rope ladder, the lower part of the ladder would shake when descending, making it impossible to quickly evacuate, creating a safety problem.
そこで同一出願人は、中央においてクロスして
枢支したバーを夫々の上端と下端において枢支し
て多数段連結すると共に左右一対の各段毎の連結
部に踏杆を取付けて梯子を形成すると共にクロス
したバーの開放角が一定の角度以上にならないよ
うに隣接するクロス間を折畳み自在な連結バーで
少なくとも一段おき毎に連結した折畳自在な吊下
式梯子を開発した。この梯子は、平常時には折り
畳んだ状態でベランダ等に埋設した枠体内に収納
することができると共に非常時には伸ばすことが
でき、かつ避難時に梯子の揺れを少なく迅速、安
全に降下することができるものであつた。 Therefore, the same applicant has created a ladder by connecting bars that are crossed in the center and pivoted at the upper and lower ends of each bar to connect multiple stages, and attaching a step to the connecting part of each pair of left and right stages. At the same time, we have developed a foldable hanging ladder in which at least every other rung is connected by foldable connecting bars between adjacent crosses so that the open angle of the crossed bars does not exceed a certain angle. During normal times, this ladder can be folded and stored in a frame buried in a balcony, etc., and can be extended in an emergency, and can be lowered quickly and safely with less shaking during evacuation. It was hot.
ところが、上記した梯子にあつても以下に述べ
る欠点が存した。すなわち、非常時において枠体
の下蓋を開放した時に、梯子は自重によつて伸び
るが、その伸びが急激に行われるため、例えば階
下に人が居た場合に梯子の落下によつて怪我をす
る等の欠点があつた。 However, even the above-mentioned ladder had the following drawbacks. In other words, when the bottom cover of the frame is opened in an emergency, the ladder will extend due to its own weight, but because this extension will occur rapidly, for example, if there is a person downstairs, there is a risk of injury due to the ladder falling. There were drawbacks such as:
本考案は叙上の点に鑑みて成されたもので、そ
の目的とするところは、梯子の伸長時において該
梯子が緩やかに下降し、階下に人が居ても安全に
梯子を下ろすことができるようにした避難装置を
提供するにある。 This invention was developed in view of the above points, and its purpose is to allow the ladder to descend gently when extended, so that the ladder can be lowered safely even if there are people downstairs. The purpose is to provide evacuation equipment that can be used.
次に本考案の一実施例を図面と共に説明する。 Next, one embodiment of the present invention will be described with reference to the drawings.
１はベランダ等に埋設された枠体にして、上面
と下面に上、下蓋２，３が取付けられている。な
お上面開口部には雨等による水の侵入を防止する
ためのパツキン１ａが設けられている。また枠体
１の内側面には係止孔１b1と連通するガイド溝１
b2を有するガイド板１ｂが取付けられると共に上
蓋２に一端が枢着されたアーム２ａの先端が、上
記ガイド溝１b2にガイドされている。４は枠体１
の内部に取付けられた下蓋３のロツク機構にし
て、ハンドル４ａを回動することにより係合片４
ｂと下蓋３の係合環３ａとのロツクが解除され
る。なお枠体１の四隅には手摺り１ｃが取付けら
れている。 1 is a frame buried in a balcony or the like, and upper and lower covers 2 and 3 are attached to the upper and lower surfaces of the frame body. A gasket 1a is provided at the top opening to prevent water from entering due to rain or the like. Also, on the inner surface of the frame 1, there is a guide groove 1 that communicates with the locking hole 1b1 .
The tip of an arm 2a , to which a guide plate 1b having a diameter b 2 is attached and one end of which is pivoted to the upper lid 2, is guided by the guide groove 1b 2 . 4 is frame 1
By using the locking mechanism of the lower lid 3 installed inside the handle 4a, the engaging piece 4 can be locked.
b and the engagement ring 3a of the lower lid 3 are unlocked. Note that handrails 1c are attached to the four corners of the frame body 1.
５は枠体１内に収納される梯子にして、同じ長
さのバー５ａをクロス状に枢着すると共に各段の
上端と下端とのバー５ａを連続的に順次枢着して
構成したものである。そして梯子部を形成する各
バー５ａにおける各段毎の前面側連結部には踏杆
６が取付けられると共に各段毎の背面側連結部に
は補助杆７が取付けられている。 Reference numeral 5 denotes a ladder housed within the frame 1, in which bars 5a of the same length are pivotally connected in a cross shape, and the bars 5a at the top and bottom ends of each step are successively pivotally connected. It is. A step lever 6 is attached to the front side connecting portion of each step of each bar 5a forming the ladder portion, and an auxiliary rod 7 is attached to the back side connecting portion of each step.
８は上記梯子５における１つのバー５ａの枢着
部に一端が接続された第１の連結バー８ａと次段
のバー５ａの枢着部に一端が接続された第２の連
結バー８ｂとより成る連結バーにして、この第
１、第２の連結バー８ａと８ｂとの他端は互いに
枢着されている。そしてこの連結バー８は各バー
５ａのクロス状枢着点間の長さが同じになるよう
に形成されている。なお、この連結バー８は前記
枢着部の各段毎に取付けても、あるいは実施例の
ように一段間隔毎に取付けてもよい。 8 is made up of a first connecting bar 8a having one end connected to the pivoting part of one bar 5a in the ladder 5, and a second connecting bar 8b having one end connected to the pivoting part of the next bar 5a. The other ends of the first and second connecting bars 8a and 8b are pivotally connected to each other. The connecting bars 8 are formed so that the lengths between the cross-shaped pivot points of each bar 5a are the same. Incidentally, this connecting bar 8 may be attached to each stage of the pivot joint portion, or may be attached at every stage interval as in the embodiment.
９は上端が上記した下蓋３の係止杆３ｂに取付
けられ、下端が最下段の補助杆７に取付けらえた
引上げ用チエーンにして、伸長された梯子５を枠
体１に収納するために引上げる時に使用する。 Reference numeral 9 is a lifting chain whose upper end is attached to the above-mentioned locking rod 3b of the lower lid 3 and whose lower end is attached to the lowest auxiliary rod 7, in order to store the extended ladder 5 in the frame 1. Used when lifting.
次に上記した梯子５を枠体１の取付けるための
構造について説明する。 Next, a structure for attaching the above-mentioned ladder 5 to the frame 1 will be explained.
梯子５を構成する最上段のバー５a′の一方上端
は、枠体１に固着された取付板１ｄに取付棒５ｂ
によつて枢着されている。また他方のバー５a″の
上端は上記最上段のバー５a′の中間に枢着されて
いる。１０は上端が取付板１ｄにボルトナツトで
回動自在に枢着された揺れ防止板にして、梯子５
が枠体１内に収納されている状態では下蓋３の上
面に乗つた状態で枠体１内に収納され、また梯子
５が伸長された状態では、これが第３〜６図の如
く垂れ下がると共に枠体１の内壁面に途中が当接
して略垂直状態で保持されるので、伸長された補
助杆７が当接されて第５図において左方向へ移動
するのを阻止している。１１は取付棒５ｂに軸支
されたフツクにして、下端に形成した係合片１１
ａが梯子５を枠体１内に収納した状態にある適宜
個所（略中間部）の補助杆７に係合して、梯子５
が落下するのを防止する。１２はシリンダー１２
ａの一端が上記した取付板１ｄに枢着され、突出
杆１２ｂの先端が最上段のバー５a′と連結された
左右の２段目のバー５ａに枢着されたシリンダ
ーダンパにして、梯子５の落下時においてダンプ
効果を発揮し、該梯子５が緩やかに下降するもの
である。 One upper end of the uppermost bar 5a' constituting the ladder 5 is attached to the mounting rod 5b on the mounting plate 1d fixed to the frame 1.
It is pivoted by. The upper end of the other bar 5a'' is pivotally connected to the middle of the uppermost bar 5a'. Reference numeral 10 is an anti-sway plate whose upper end is rotatably pivotally connected to the mounting plate 1d, and 5
When the ladder 5 is stored in the frame 1, it is stored in the frame 1 while riding on the upper surface of the lower lid 3, and when the ladder 5 is extended, it hangs down as shown in Figures 3 to 6. Since the middle portion of the frame 1 abuts against the inner wall surface of the frame 1 and is held in a substantially vertical state, the extended auxiliary rod 7 abuts and is prevented from moving to the left in FIG. 11 is a hook pivotally supported on the mounting rod 5b, and an engagement piece 11 formed at the lower end.
a engages with the auxiliary rod 7 at an appropriate location (approximately the middle part) when the ladder 5 is housed in the frame 1, and the ladder 5
prevent it from falling. 12 is cylinder 12
One end of a is pivotally attached to the above-mentioned mounting plate 1d, and the tip of the protruding rod 12b is pivoted to the left and right second bar 5a connected to the uppermost bar 5a'. When the ladder 5 falls, a dumping effect is exhibited, and the ladder 5 descends gently.
次に動作について説明するに、平常時は第１，
２図に示すように、梯子５を縮めた状態で枠体１
内に収納しておく。この梯子５の中間部における
補助杆７がフツク１１に係合されているので、例
え上蓋２を開放しても不用意に梯子５が落下する
ことはない。またこの状態において、オイルダン
パ１２の突出杆１２ｂはシリンダー１２ａ内に収
納されている。 Next, to explain the operation, in normal times, the first
As shown in Figure 2, with the ladder 5 retracted, the frame 1
Store it inside. Since the auxiliary rod 7 at the middle part of the ladder 5 is engaged with the hook 11, the ladder 5 will not fall accidentally even if the top cover 2 is opened. Further, in this state, the protruding rod 12b of the oil damper 12 is housed within the cylinder 12a.
火災時の非常事態が発生した場合には、先ず上
蓋２を開放する。この時アーム２ａの先端がガイ
ド溝１b2の係止孔１b1に係合されるので、該上蓋
２は開放されたままとなる。またロツク機構４の
ハンドル４ａを回動し、下蓋３を開放する。 When an emergency situation such as a fire occurs, the top cover 2 is first opened. At this time, the tip of the arm 2a is engaged with the locking hole 1b1 of the guide groove 1b2 , so the upper lid 2 remains open. Also, the handle 4a of the lock mechanism 4 is rotated to open the lower lid 3.
次いで、階下の安全を確認した後にフツク１１
の係合片１１ａと梯子５における補助杆７との係
合を解除すると、梯子５が自重によつて落下し、
該梯子５は伸長される。梯子５の伸長時におい
て、最上段のバー５a′から２段目のバー５ａと
取付板１ｄとの間にシリンダーダンパ１２が接続
されているために、全てのバー５ａ，５a′，５
a″および５ａが伸びようとすると、シリンダー
ダンパ１２の突出杆１２ｂが油圧によつて緩やか
に突出されるので、梯子５の落下は非常に緩やか
に行われることになる。従つて、梯子５が従来の
ように急激に下降することがないので、万一階下
に人がいたとしても、十分に梯子５の下から避難
することができ、事故を防止することができる。 Next, after confirming the safety of downstairs,
When the engagement piece 11a of the ladder 5 is disengaged from the auxiliary rod 7 of the ladder 5, the ladder 5 falls due to its own weight.
The ladder 5 is extended. When the ladder 5 is extended, all the bars 5a, 5a', 5
a'' and 5a try to extend, the protruding rod 12b of the cylinder damper 12 is gently protruded by the hydraulic pressure, so the ladder 5 falls very gently. Since there is no sudden descent as in the conventional case, even if there is someone downstairs, they can evacuate sufficiently from under the ladder 5 and accidents can be prevented.
また、梯子５の最上段の補助杆７が、枠体１の
内壁面に当接することにより揺れが防止される揺
れ防止板１０に当接するので、該梯子５は垂直状
態に保たれると共に梯子５が伸長されると連結バ
ー８の第１、第２の連結バー８ａ，８ｂも直線状
となり、各段の梯子部の各広がりが規制される。 Further, since the auxiliary rod 7 at the top of the ladder 5 comes into contact with the shaking prevention plate 10 that prevents shaking by coming into contact with the inner wall surface of the frame 1, the ladder 5 is kept in a vertical state and the ladder When the connecting bar 5 is extended, the first and second connecting bars 8a and 8b of the connecting bar 8 also become straight, and the spread of each step of the ladder section is restricted.
従つて梯子５は第５図に示す如く、各連結部の
間隔は一定となり、下に行くに従つて狭まるよう
なことはなく、人の昇降に対し梯子５が縄梯子の
ように揺れることはない。 Therefore, as shown in Fig. 5, the distance between the connecting parts of the ladder 5 is constant, and it does not narrow as it goes down, and the ladder 5 does not sway like a rope ladder when a person ascends or descends. .
また梯子５を折畳み収納するには、引上げ用チ
エーン９を引上げることによつて、梯子５は順次
折畳まれ引上げられる。従つて、全ての梯子５が
枠体１内に収納された状態でフツク１１の係合片
１１ａを適宜個所の補助杆７に引掛け、次いで下
蓋３を閉めロツク機構４によつてロツクすると共
に上蓋２を閉じることによつて、第１，２図の平
常状態に戻るものである。 Further, in order to fold and store the ladder 5, the ladder 5 is sequentially folded and pulled up by pulling up the pulling chain 9. Therefore, with all the ladders 5 housed in the frame 1, the engaging pieces 11a of the hooks 11 are hooked onto the auxiliary rods 7 at appropriate locations, and then the lower cover 3 is closed and locked by the locking mechanism 4. By closing the upper lid 2 at the same time, the normal state shown in FIGS. 1 and 2 is restored.
なお、梯子５の引上げはシリンダーダンパ１２
の突出杆１２ｂをシリンダー１２ａ内に入れる方
向となるので、引上げ力が大となるが、ここでシ
リンダーダンパ１２の構造を突出杆１２ｂの突出
方向のみダンプ効果が作用するようにし、突出杆
１２ｂの吸引方向にはダンプ効果が生じないよう
に、例えば一方弁的なものをピストン内に収納す
れば良い。 In addition, the lifting of the ladder 5 is performed using the cylinder damper 12.
Since this is the direction in which the protruding rod 12b is inserted into the cylinder 12a, the lifting force becomes large. However, the structure of the cylinder damper 12 is designed so that the damping effect acts only in the direction in which the protruding rod 12b protrudes. For example, a one-way valve may be housed in the piston so that no dumping effect occurs in the suction direction.
本考案は上記したように、クロスしたバーをパ
ンダグラフ状に順次連結すると共にこの各連結部
間の一方に踏杆を、他方に補助杆を連結して形成
した伸縮自在な梯子における上記バーの最上段の
一方を取付板に枢着すると共に、一端が上記取付
板に枢着されたシリンダーダンパの他端を上記梯
子の上記踏杆が取付けられた側の上記バーに枢着
したので、梯子の伸長時において梯子が緩やかに
下降し、従つて、階下に人が居たとしても人は十
分に避けることができ安全であり、また、梯子が
伸長した状態において、上記取付板に一端が枢着
され、枠体の内壁面に当接して固定される揺れ防
止板が上記補助杆に当接するので、上記伸長状態
にある上記シリンダーダンパとによつて梯子の揺
れを防止でき、従つて、梯子を固定した状態と同
じ状態で下降できるので、安全、かつ、容易に下
降することができ、さらに、全ての部材は枠体に
固定された取付板に取付けられているので、この
取付板をベランダ等の床面に埋設された枠体やビ
ル等の壁面に固定することによつて避難装置とし
て使用でき、しかも、梯子を折り畳んで状態にお
いて、前記取付板に取付けられたフツクを適宜個
所の補助杆に係合することによつて折り畳んだ状
態を保持できるので、妄りに梯子が落下すること
がなく、安全に使用できる等の効果を有するもの
である。 As described above, the present invention is a telescopic ladder in which crossed bars are sequentially connected in a pandagraph shape, and a step is connected to one side between each connecting part, and an auxiliary rod is connected to the other side. One end of the top step was pivotally connected to the mounting plate, and the other end of the cylinder damper, whose one end was pivotally connected to the mounting plate, was pivotally connected to the bar on the side of the ladder where the tread was attached, so that the ladder When the ladder is extended, the ladder descends gently, so even if there are people downstairs, they can sufficiently avoid them and are safe.Also, when the ladder is extended, one end of the ladder is attached to the mounting plate. The anti-sway plate, which is fixed to the inner wall of the frame and is in contact with the auxiliary rod, can prevent the ladder from swinging due to the cylinder damper in the extended state. Since it can be lowered in the same state as when it is fixed, it can be lowered safely and easily.Furthermore, all the parts are attached to the mounting plate fixed to the frame, so this mounting plate can be attached to the balcony. It can be used as an evacuation device by fixing it to the frame embedded in the floor of a building, etc., or to the wall of a building, etc. Furthermore, when the ladder is folded, the hook attached to the mounting plate can be used as an aid at an appropriate location. Since the folded state can be maintained by engaging the ladder, the ladder will not fall accidentally and can be used safely.
図は本考案の一実施例を示し、第１図は上蓋の
一部を切欠した平面図、第２図は同上の横断面
図、第３図は梯子の上部の側面図、第４図は同上
の正面図、第５図は梯子を伸長した状態の側面
図、第６図は同上の正面図である。
１……枠体、１ｄ……取付板、５……梯子、５
ａ，５a′，５a″，５……バー、６……踏杆、７
……補助杆、１０……揺れ防止板、１１……フツ
ク、１２……シリンダーダンパ。
The figures show an embodiment of the present invention, in which Fig. 1 is a partially cutaway plan view of the top cover, Fig. 2 is a cross-sectional view of the same, Fig. 3 is a side view of the upper part of the ladder, and Fig. 4 is a top view of the top of the ladder. FIG. 5 is a side view of the ladder in an extended state, and FIG. 6 is a front view of the same. 1...Frame body, 1d...Mounting plate, 5...Ladder, 5
a, 5a', 5a'', 5...bar, 6...stick, 7
...Auxiliary rod, 10...Sway prevention plate, 11...Hook, 12...Cylinder damper.
Claims (1)
バーの先端同志を順次回動自在に連結したものを
左右一対用意し、かつ、前記バーの前記順次連結
した前面側連結部分の左右間を踏杆で、また、後
面側連結部分の左右間を補助杆で連結してなり、
枠体内に収納される伸縮可能な梯子と、 該梯子における最上段の一対のバーは前面側の
バーが後面側のバーより長く形成され、この長く
形成されたバーの上端が枢着された取付板と、 一端が前記取付板に枢着され、他端が前記梯子
の２段目以下のバーに枢着されたオイルダンパ等
のシリンダーダンパと、 一端が前記取付板に枢着され、他端がフリーな
状態であつて、前記梯子を収納した状態において
は梯子と共に収納され、梯子を伸長した状態にお
いては枠体内壁面に当接垂下されて前記補助杆に
当接する揺れ防止板と、 前記梯子を収納した状態において、該梯子の適
宜個所の補助杆に係合する前記枠体の取付棒に軸
支されたフツクと、 を具備したことを特徴とする避難装置。[Scope of Claim for Utility Model Registration] A pair of left and right bars are prepared in which the ends of two bars are pivotally supported in a crossed state at the center and are sequentially connected to each other, and the front side of the sequentially connected bars is provided. The left and right sides of the connecting part are connected by a foot lever, and the left and right sides of the rear side connecting part are connected by an auxiliary rod,
A retractable ladder is housed in a frame, and a pair of bars at the top of the ladder are formed such that the front side bar is longer than the rear side bar, and the upper end of the long bar is pivoted. a cylinder damper, such as an oil damper, having one end pivotally attached to the mounting plate and the other end pivoting to a bar on the second or lower rung of the ladder; one end pivoting to the mounting plate and the other end an anti-sway plate which is housed together with the ladder when the ladder is in a free state and which is suspended in contact with a wall surface within the frame and abuts the auxiliary rod when the ladder is extended; An evacuation device comprising: a hook pivotally supported by a mounting rod of the frame that engages with an auxiliary rod at an appropriate location of the ladder when the ladder is stored.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5667183U JPS59163100U (en) | 1983-04-18 | 1983-04-18 | evacuation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5667183U JPS59163100U (en) | 1983-04-18 | 1983-04-18 | evacuation device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59163100U JPS59163100U (en) | 1984-10-31 |
| JPH0516400Y2 true JPH0516400Y2 (en) | 1993-04-28 |
Family
ID=30186993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5667183U Granted JPS59163100U (en) | 1983-04-18 | 1983-04-18 | evacuation device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59163100U (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6090400U (en) * | 1983-11-29 | 1985-06-20 | 城田鉄工株式会社 | evacuation ladder device |
| JPH052800Y2 (en) * | 1985-07-04 | 1993-01-22 | ||
| JPH0631119Y2 (en) * | 1988-02-24 | 1994-08-22 | 松下電工株式会社 | Ceiling ladder equipment |
| JP4298415B2 (en) * | 2003-07-09 | 2009-07-22 | 稔 大多 | Unmanned aperture evacuation device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5610877Y2 (en) * | 1975-10-28 | 1981-03-11 | ||
| JPS5830957Y2 (en) * | 1979-12-14 | 1983-07-08 | 株式会社 目黒防災 | Evacuation exit devices in high-rise buildings |
| JPS6324238Y2 (en) * | 1980-03-07 | 1988-07-04 | ||
| JPS57120699U (en) * | 1981-01-22 | 1982-07-27 |
-
1983
- 1983-04-18 JP JP5667183U patent/JPS59163100U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59163100U (en) | 1984-10-31 |
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