【０００１】
【発明の属する技術分野】
本発明は、緊急時に高所から脱出する際等に使用される避難用はしごに関するものである。
【０００２】
【従来の技術】
従来、例えば特許文献１に示されるように、上下方向に配置された複数本の横桟と、上下に隣接する横桟の両端部同士を連結する折畳み自在な縦桟と、各横桟に取り付けられた棒状の突子と、最上段の横桟に取り付けられた吊り金具とを備え、使用時に上記吊り金具が建物の窓枠等に掛止められることにより建築物の壁面に沿って伸長垂下状態として使用される避難用はしごが知られている。この避難用はしごの吊り金具は、それぞれ略Ｌ字状に形成されるとともに、複数の相対応する調節孔が設けられた外側金具および内側金具とを有し、窓枠等の幅寸法に対応させて上記両金具の設置間隔を調節した状態で、上記調節孔にボルトを挿通させてナットを締め付けることにより、上記窓枠等に掛止められるように構成されている。
【０００３】
【特許文献１】
特開平７−２３８７６０号公報
【０００４】
【発明が解決しようとする課題】
上記のように避難用はしごの吊り金具を外枠金具と内枠金具とにより構成するとともに、窓枠等からなる被掛止め部の幅寸法に対応させて上記両金具の設置間隔を調節するように構成した場合には、上記吊り金具に汎用性を持たせて幅寸法が異なる各種の被掛止め部に対して吊り金具を掛止めることが可能である。しかし、上記両金具の設置間隔は、両金具に設けられた調節孔の配列ピッチに対応して段階的に調節されるように構成されているため、被掛止め部の幅寸法に正確に合わせることが困難である。したがって、上記両金具の設置間隔が広すぎるために、使用時に吊り下げ金具と被掛止め部との間でがたつきが発生して安定性が悪くなる等の問題がある。
【０００５】
また、避難用はしごの使用時に、吊り金具の幅寸法と被係止部の幅寸法とが正確に対応していないことに起因した上記がたつきの発生を防止するため、窓枠等からなる被掛止め部の幅寸法に対応させて上記両金具の設置間隔を予め正確に微調整しておくことも考えられるが、この場合には、被係止部に吊り金具を容易に掛止めることができず、緊急時に避難用はしごを設置する作業に手間取り易いという問題がある。
【０００６】
本発明は、上記の点に鑑みてなされたものであり、緊急時に手間取ることなく迅速に設置することができるとともに、安定して使用可能な避難用はしごを提供することを目的としている。
【０００７】
【課題を解決するための手段】
請求項１に係る発明は、一定間隔で設置された複数個の横材が縦材により連結されてなるはしご本体と、被掛止め部に掛止められる吊り金具とを備えた避難用はしごにおいて、上記吊り金具に、被掛止め部の上方に配設される上辺部とその基端部から下方に伸びる垂下部とを有する吊り金具本体と、この吊り金具本体の上辺部に沿ってスライド自在に支持され、かつ上記垂下部に対向して下方に伸びる係止部材とを設け、上記はしご本体の縦材を吊り金具本体の垂下部および上辺部に沿って設置するとともに、上記縦材の先端部を上記係止部材に固定したものである。
【０００８】
上記構成によれば、吊り金具本体の垂下部と係止部材とを被掛止め部に外嵌して設置することにより、はしご本体を被掛止め部の外面側に配設すると、この縦材を介して上記係止部材に作用するはしご本体の自重等に応じ、係止部材が吊り金具本体の垂下部に接近する方向に上記上辺部に沿ってスライド変位することにより、上記垂下部および係止部材が被掛止め部の表裏両面に圧接された状態で吊り金具が被掛止め部に安定して掛止められることになる。
【０００９】
請求項２に係る発明は、上記請求項１記載の避難用はしごにおいて、吊り金具本体の上辺部に外嵌される筒状体を係止部材の上端部に設け、この筒状体に縦材の先端部を固定するとともに、この縦材の案内部材を吊り金具本体に設けたものである。
【００１０】
上記構成によれば、係止部材の上端部に設けられた筒状体に縦材を介して作用するはしご本体の自重等に応じ、上記係止部材の筒状体が垂下部に接近する方向に吊り金具本体の上辺部に沿ってスライド変位することにより、上記垂下部および係止部材が被掛止め部の表裏両面に圧接された状態で吊り金具が被掛止め部に安定して掛止められることになる。
【００１１】
請求項３に係る発明は、上記請求項１記載の避難用はしごにおいて、吊り金具本体を筒状体により構成するとともに、吊り金具本体の上辺部内に挿入されてスライド自在に支持されるスライド体を係止部材の上端部に設け、上記吊り金具本体内に、はしご本体の縦材を導入してその先端部をスライド体に固定したものである。
【００１２】
上記構成によれば、上記係止部材の上端部に設けられたスライド体に縦材を介して作用するはしご本体の自重等に応じ、吊り金具本体内に配設された上記係止部材のスライド体が垂下部に接近する方向にスライド変位することにより、上記垂下部および係止部材が被掛止め部の表裏両面に圧接された状態で吊り金具が被掛止め部に安定して掛止められることになる。
【００１３】
【発明の実施の形態】
図１および図２は、本発明に係る避難用はしごの実施形態を示している。この避難用はしごは、窓枠またはベランダの手摺部等からなる被掛止め部Ａに掛止められる吊り金具１と、いわゆる縄ばしご状に構成されたはしご本体２とを有し、火災発生時等の非常時に、上記吊り金具１が被掛止め部Ａに掛止められるとともに、はしご本体２が建物の壁面等に沿って垂下された状態で使用されるものである。
【００１４】
上記はしご本体２は、所定の強度を備えたワイヤロープ等の可撓性部材からなる左右一対の縦材３と、足掛け部となる複数本の横材４とを備え、各横材４が一定間隔で配設されるとともに、その左右両側端部が上記縦材３に固定されている。そして、避難用はしごの非使用時には、図２に示すように、はしご本体２が簀の子状に巻かれるとともに、その周囲に帯状体等からなる巻止め部材５が巻き付けられた状態でテープファスナ等の係止具６によって係止されることにより、上記はしご本体２がコンパクト化された状態で保持されるようになっている。
【００１５】
また、上記はしご本体２の各横材４には、左右一対の脚体７がそれぞれ突設され、避難用はしごの使用時に上記脚体７が水平方向に突出した状態となって、その先端部が建築物の壁面等に当接することにより、はしご本体４と上記壁面等との間に一定の間隔が保持されるように構成されている。
【００１６】
上記吊り金具１は、アルミニウム合金等からなる角パイプ材を折曲げることにより形成された上辺部８とその基端部から下方に伸びる垂下部９とにより構成された吊り金具本体１０と、この吊り金具本体１０の上辺部８に沿ってスライド自在に支持されるとともに、上記垂下部７に対向して下方に伸びる係止部材１１とを有している。
【００１７】
この実施形態では、図３に示すように、上記吊り金具本体１０の上辺部８に外嵌される筒状体１２と、この筒状体１２の下面に突設された板状体１３とにより上記係止部材１１が構成され、上記筒状体１２が吊り金具本体１０の上辺部８に沿ってスライド自在に支持されるとともに、上記板状体１３が吊り金具本体１０の垂下部９に対向した状態で設置されている。そして、上記吊り金具本体１０の上辺部８が被掛止め部Ａの上面に沿って所定角度の先上がり状態で設置されるとともに、上記垂下部９が被掛止め部Ａの表面側（建物の外壁面側）に配設され、かつ上記係止部材１１の板状体１３が被掛止め部Ａの裏面側（建物の内壁面側）に配設された状態で、吊り金具１が被掛止め部Ａに掛止められるように構成されている。
【００１８】
また、上記係止部材１１の板状体１３の内側辺部、つまり被掛止め部Ａの裏面に当接する側辺部には、鋸刃状の滑り止め部１４が形成されている。さらに、上記係止部材１１の板状体１３と、吊り金具本体１０の垂下部９との設置間隔が下方に至るほど狭くなるように、上記筒状体１２に対する板状体１３の取付角度が設定されている。
【００１９】
上記筒状体１２の上面には、係止片１５が突設され、この係止片１５に上記はしご本体２縦材３の先端部が係止されることにより、吊り金具１とはしご本体２とが一体に連結されている。そして、はしご本体２の縦材３を、吊り金具本体１０の垂下部９および上辺部８に沿わせるように設置するとともに、上記縦材３の先端部を上記係止部材１１の筒状体１２に固定することにより、避難用はしごの使用時に、上記縦材３を介して係止部材１１に入力されるはしご本体２の自重に応じ、上記係止部材９を、吊り金具本体１０の垂下部９に接近させる方向に付勢して吊り金具本体１０の上辺部８に沿ってスライド変位させるように構成されている。
【００２０】
すなわち、上記吊り金具本体１０の上面には、はしご本体２の縦材３が挿通される円形の挿通部を有する複数個の案内部材１６が一定間隔で突設され、この案内部材１６によりガイドされた上記ワイヤロープ等からなる上記縦材３が、吊り金具本体１０の上面に沿うように設置されることにより、はしご本体２の自重が縦材３を介して係止部材１１に入力されるようになっている。
【００２１】
上記構成の避難用はしごを使用する場合には、図３の仮想線で示すように、吊り金具１の係止部材１１を吊り金具本体１０の先端部側に位置させた状態で、吊り金具本体１０を被掛止め部Ａに外嵌することにより、吊り金具本体１０の垂下部９と上記係止部材１１とを被掛止め部Ａの表裏両面側に配設して吊り金具１を被掛止め部Ａに掛止めるとともに、はしご本体２を被掛止め部Ａの外面側に設置する。
【００２２】
このようにして避難用はしごを設置すると、縦材３を介して上記係止部材１１に作用するはしご本体２の自重に応じ、係止部材１１が吊り金具本体１０の垂下部９に接近する方向に上辺部８に沿ってスライド変位することにより、被掛止め部Ａの幅寸法に対応して上記係止部材１１と垂下部９との設置間隔が自動的に調節され、上記係止部材１１および垂下部９が被掛止め部Ａの表裏両面に圧接された状態で吊り金具１０が被掛止め部Ａに掛止められることになる。
【００２３】
次いで、図２に示すように、はしご本体２を簀の子状に巻いた状態に保持する上記巻止め部材５の一端部を把持して、テープファスナからなる係止具６の係止状態を解除する方向に引っ張ることにより、上記はしご本体２を垂下させて建築物の壁面等に沿わせるように設置する。このようにして設置された避難用はしごを使用して高層階から下方に避難する場合には、はしご本体２に作用する避難者の体重が上記縦材３を介し吊り金具１の係止部材１１に作用することにより、上記係止部材１１が吊り金具本体１０の垂下部９に接近する方向に、より大きな力で付勢されるため、被掛止め部Ａに対する上記吊り金具１０の掛止め状態が、さらに安定して保持されることになる。
【００２４】
上記のように一定間隔で設置された複数個の横材４が縦材３により連結されてなるはしご本体２と、被掛止め部Ａに掛止められる吊り金具１とを備えた避難用はしごにおいて、上記吊り金具１に、被掛止め部Ａの上方に配設される上辺部８とその基端部から下方に伸びる垂下部９とを有する吊り金具本体１０と、この吊り金具本体１０の上辺部８に沿ってスライド自在に支持され、かつ上記垂下部９に対向して下方に伸びる係止部材１１とを設け、上記はしご本体２の縦材３を吊り金具本体１０の垂下部９および上辺部８に沿わせるように設置するとともに、上記縦材３の先端部を係止部材１１に固定したため、吊り金具本体１０の垂下部９と係止部材１１とを被掛止め部Ａに外嵌して、上記はしご本体２を被掛止め部Ａの外面側に配設することにより、この縦材３を介して上記係止部材１１に作用するはしご本体２の自重等に応じ、係止部材１１を吊り金具本体１０の垂下部９に接近させる方向に上辺部８に沿ってスライドさせることができる。
【００２５】
したがって、吊り金具本体１０の垂下部９と係止部材１１との設置間隔を微調整する等の繁雑な作業を要することなく、吊り金具１０を被掛止め部Ａに外嵌させて設置する作業を容易に行うことができるとともに、はしご本体２の自重および避難者の体重に応じた強い力で上記垂下部９および係止部材１１を被掛止め部Ａの表裏両面に圧接させることにより、上記被掛止め部Ａに対する吊り金具１０の掛止め状態を安定して保持することができるため、上記避難用はしごを迅速に設置して安全に使用できるという利点がある。
【００２６】
また、上記実施形態では、吊り金具本体１０の上辺部８に外嵌される筒状体１２を係止部材１１の上端部に設け、この筒状体１２に縦材３の先端部を固定するとともに、この縦材３の案内部材１６を吊り金具本体１０に設けたため、上記係止部材１１の上端部に設けられた筒状体１２に縦材３を介して作用するはしご本体２の自重等に応じ、吊り金具本体１０の上辺部８に沿って上記筒状体１２をスムーズにスライド変位させることができる。したがって、上記垂下部９および係止部材１１の板状体１３を被掛止め部Ａの表裏両面に対して強固に圧接させることにより、被掛止め部Ａに対する吊り金具１０の掛止め状態を安定して保持できるという利点がある。
【００２７】
特に、上記実施形態に示すように、吊り金具本体１０の上辺部８が先上がりの傾斜状態となって被掛止め部Ａに掛止められるように上記上辺部８と垂下部９との設置角度を設定した場合には、上記縦材３を介して係止部材１１に入力されるはしご本体２の自重等を、吊り金具本体１０の垂下部９に係止部材１１を接近させる方向の付勢力に効率よく変換することができるため、上記吊り金具本体１０の上辺部８に沿って係止部材１１をスムーズにスライド変位させることが可能である。
【００２８】
なお、図４および図５に示すように、吊り金具本体１０を丸パイプ材等からなる筒状体により構成するとともに、吊り金具本体１０の上辺部８内に挿入されてスライド自在に支持される円柱状部材からなるスライド体２１と、上記上辺部８の下面に形成されたスリット２２を介して下方に突設された板状体２３とにより係止部材２４を構成し、吊り金具本体１０内に、はしご本体２の縦材３を導入してその先端部を上記スライド体２１に固定した構造としてもよい。
【００２９】
上記のように構成した場合には、別体の案内部材を設けることなく、吊り金具本体１０の垂下部９および上辺部８に沿わせるように縦材３を設置することにより、上記係止部材２４の上端部に設けられたスライド体２１にはしご本体２の自重等を効率よく作用させることができる。したがって、簡単な構成で上記はしご本体２の自重等に応じてスライド体２１を吊り金具本体１０の垂下部９に接近させる方向にスライドさせることにより、上記垂下部９および係止部材２４の板状体２３を被掛止め部Ａの表裏両面に圧接させた状態で、吊り金具１を被掛止め部Ａに安定して掛止めることができる。
【００３０】
上記吊り金具本体１０を丸パイプ材により構成した場合、その周面が被掛止め部Ａに点接触状態となってぐらつきが生じ易い傾向がある。このため、合成ゴム材等により断面形状が正方形等に形成された支持ブロック２５を上記吊り金具本体１０の垂下部９に取り付け、この支持ブロック２５の周面を被掛止め部Ａの表面に当接させることにより、上記吊り金具本体１０のぐらつきを防止するように構成することが望ましい。
【００３１】
【発明の効果】
以上説明したように、本発明は、一定間隔で設置された複数個の横材が縦材により連結されてなるはしご本体と、被掛止め部に掛止められる吊り金具とを備えた避難用はしごにおいて、上記吊り金具に、被掛止め部の上方に配設される上辺部とその基端部から下方に伸びる垂下部とを有する吊り金具本体と、この吊り金具本体の上辺部に沿ってスライド自在に支持され、かつ上記垂下部に対向して下方に伸びる係止部材とを設け、上記はしご本体の縦材を吊り金具本体の垂下部および上辺部に沿わせるよう設置するとともに、上記縦材の先端部を上記係止部材に固定したため、吊り金具本体の垂下部と係止部材との設置間隔を微調整する等の繁雑な作業を要することなく、吊り金具を被掛止め部に外嵌させて設置する作業を容易に行うことができるとともに、はしご本体の自重および避難者の体重に応じた強い力で上記被掛止め部に対する吊り金具の掛止め状態を安定して保持することができるという利点がある。
【図面の簡単な説明】
【図１】本発明に係る避難用はしごの実施形態を示す斜視図である。
【図２】上記避難用はしごの使用状態を示す説明図である。
【図３】吊り金具の構成を示す説明図である。
【図４】本発明に係る避難用はしごの別の実施形態を示す説明図である。
【図５】図４のＢ−Ｂ線断面図である。
【符号の説明】
１ 吊り金具
２ はしご本体
３ 縦材
４ 横材
８ 上辺部
９ 垂下部
１０ 吊り金具本体
１１ 係止部材
１２ 筒状体
１８ 案内部
２１ スライド体
Ａ 被掛止め部[0001]
TECHNICAL FIELD OF THE INVENTION
TECHNICAL FIELD The present invention relates to an evacuation ladder used for evacuation from a high place in an emergency.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, as shown in Patent Document 1, for example, a plurality of horizontal rails arranged in a vertical direction, a foldable vertical rail connecting both ends of a vertically adjacent horizontal rail, and a horizontal rail mounted on each horizontal rail Equipped with a rod-shaped projection and a hanging bracket attached to the uppermost horizontal rail, the hanging bracket being hung on a window frame or the like of the building during use, and extending along the wall surface of the building in a hanging state. Evacuation ladders used as are known. Each of the evacuation ladder hanging brackets is formed in a substantially L-shape, has an outer bracket and an inner bracket provided with a plurality of corresponding adjustment holes, and is adapted to a width dimension of a window frame or the like. By adjusting the installation interval between the two brackets, a bolt is inserted through the adjustment hole and a nut is tightened, so that the bracket is hooked to the window frame or the like.
[0003]
[Patent Document 1]
JP-A-7-238760
[Problems to be solved by the invention]
As described above, the evacuation ladder suspension metal fittings are constituted by the outer frame metal fittings and the inner frame metal fittings, and the installation interval between the two metal fittings is adjusted in accordance with the width dimension of the hooked portion composed of a window frame or the like. In this case, the hanging bracket can be provided with versatility so that the hanging bracket can be hooked to various hanging portions having different widths. However, since the interval between the two fittings is configured to be adjusted stepwise in accordance with the arrangement pitch of the adjusting holes provided in the two fittings, it is accurately adjusted to the width dimension of the hooked portion. It is difficult. Therefore, there is a problem that, because the installation interval between the two metal fittings is too wide, rattling occurs between the hanging metal fitting and the hooked portion during use, and stability is deteriorated.
[0005]
In addition, when using the evacuation ladder, to prevent the above rattling caused by the width dimension of the hanging bracket and the width dimension of the locked portion not accurately corresponding to each other, a cover made of a window frame or the like is used. It is conceivable to finely adjust the installation interval between the two brackets in advance in accordance with the width dimension of the latching portion. In this case, however, the hanging bracket can be easily latched to the locked portion. There is a problem that it is difficult to install an evacuation ladder in an emergency, which is troublesome.
[0006]
The present invention has been made in view of the above points, and an object of the present invention is to provide an evacuation ladder that can be quickly installed without trouble in an emergency and can be used stably.
[0007]
[Means for Solving the Problems]
The invention according to claim 1 is an evacuation ladder including a ladder main body in which a plurality of horizontal members installed at regular intervals are connected by a vertical member, and a hanging metal fitting that is hooked on a hooked portion, A hanging metal body having an upper side disposed above the hooked portion and a hanging portion extending downward from a base end of the hanging metal, and slidably along the upper side of the hanging metal body. A supporting member that is supported and extends downward facing the hanging portion, and the vertical member of the ladder body is installed along the hanging portion and the upper side portion of the hanging bracket body, and a tip portion of the vertical member is provided. Is fixed to the locking member.
[0008]
According to the above configuration, by installing the hanging portion of the hanging metal body and the locking member so as to be externally fitted to the hooked portion, the ladder main body is disposed on the outer surface side of the hooked portion. The slidable member slides along the upper side in a direction approaching the hanging portion of the hanging fitting body in accordance with the weight of the ladder body acting on the engaging member via In the state where the stop member is pressed against the front and back surfaces of the hooked portion, the hanging fitting is stably hooked to the hooked portion.
[0009]
According to a second aspect of the present invention, in the evacuation ladder according to the first aspect, a tubular body externally fitted to an upper side of the hanging metal body is provided at an upper end of the locking member, and a vertical member is attached to the tubular body. And the guide member of this vertical member is provided on the hanging bracket main body.
[0010]
According to the above configuration, the direction in which the cylindrical body of the locking member approaches the hanging portion according to the weight of the ladder body acting on the cylindrical body provided at the upper end of the locking member via the vertical member. The hanging fitting is slid along the upper side of the hanging fitting body, and the hanging fitting is stably hooked to the hooked part in a state where the hanging part and the locking member are pressed against the front and back surfaces of the hooked part. Will be done.
[0011]
According to a third aspect of the present invention, in the evacuation ladder according to the first aspect, the hanging body is formed of a tubular body, and the sliding body is inserted into the upper side of the hanging body and slidably supported. The vertical member of the ladder main body is provided in the upper end portion of the locking member, and the leading end of the ladder main body is fixed to the slide body.
[0012]
According to the above configuration, according to the weight of the ladder body acting on the slide body provided at the upper end portion of the locking member via the vertical member, etc., the slide of the locking member disposed in the hanging bracket main body is performed. When the body slides in the direction approaching the hanging part, the hanging fitting is stably hooked to the hanging part in a state where the hanging part and the locking member are pressed against the front and back surfaces of the hanging part. Will be.
[0013]
BEST MODE FOR CARRYING OUT THE INVENTION
1 and 2 show an embodiment of an evacuation ladder according to the present invention. This evacuation ladder has a hanging metal fitting 1 to be hooked on a hooked portion A composed of a window frame or a handrail of a veranda, and a ladder main body 2 configured in a so-called rope ladder shape. In an emergency, the hanging fitting 1 is hooked on the hooked portion A, and the ladder body 2 is used in a state of being hung down along a wall surface of a building or the like.
[0014]
The ladder main body 2 includes a pair of left and right vertical members 3 made of a flexible member such as a wire rope having a predetermined strength, and a plurality of horizontal members 4 serving as footrests. They are arranged at intervals and their left and right ends are fixed to the vertical member 3. When the evacuation ladder is not used, as shown in FIG. 2, the ladder main body 2 is wound in the shape of a cage, and a tape fastener or the like is wound in a state in which a winding stopper member 5 formed of a band or the like is wound therearound. The ladder main body 2 is held in a compact state by being locked by the locking tool 6.
[0015]
Further, a pair of left and right legs 7 are projected from each of the cross members 4 of the ladder main body 2 so that the legs 7 protrude in the horizontal direction when the evacuation ladder is used. Abuts against a wall or the like of a building, so that a constant distance is maintained between the ladder main body 4 and the wall or the like.
[0016]
The hanging fitting 1 includes a hanging fitting body 10 composed of an upper side 8 formed by bending a square pipe material made of an aluminum alloy or the like and a hanging part 9 extending downward from a base end thereof. It has a locking member 11 that is slidably supported along the upper side 8 of the metal fitting body 10 and extends downward facing the hanging part 7.
[0017]
In this embodiment, as shown in FIG. 3, a tubular body 12 fitted externally to the upper side portion 8 of the hanging bracket main body 10 and a plate-like body 13 protruding from the lower surface of the tubular body 12. The locking member 11 is formed, the cylindrical body 12 is slidably supported along the upper side portion 8 of the hanging metal body 10, and the plate 13 is opposed to the hanging portion 9 of the hanging metal body 10. It is installed in the state where it was done. Then, the upper side portion 8 of the hanging metal body 10 is set up at a predetermined angle along the upper surface of the hanging portion A, and the hanging portion 9 is positioned on the front side of the hanging portion A (of the building). In the state where the plate 13 of the locking member 11 is disposed on the back surface side (the inner wall surface side of the building) of the locking portion A, the hanging fitting 1 is hooked. It is configured to be hooked on the stopper A.
[0018]
In addition, a saw blade-shaped non-slip portion 14 is formed on an inner side portion of the plate-shaped body 13 of the locking member 11, that is, a side portion that contacts the back surface of the hooked portion A. Furthermore, the mounting angle of the plate 13 with respect to the cylindrical body 12 is set so that the installation interval between the plate 13 of the locking member 11 and the hanging portion 9 of the hanging fitting body 10 becomes narrower downward. Is set.
[0019]
A locking piece 15 protrudes from the upper surface of the tubular body 12, and the tip of the ladder main body 2 vertical member 3 is locked to the locking piece 15, so that the hanging bracket 1 and the ladder main body 2 are locked. And are integrally connected. Then, the vertical member 3 of the ladder main body 2 is installed along the hanging part 9 and the upper side part 8 of the hanging bracket main body 10, and the front end of the vertical member 3 is connected to the cylindrical body 12 of the locking member 11. When the evacuation ladder is used, the locking member 9 is attached to the hanging member main body 10 according to the weight of the ladder main body 2 input to the locking member 11 via the vertical member 3 when the evacuation ladder is used. 9 and is configured to be slid along the upper side portion 8 of the hanging bracket main body 10 while being urged in a direction to approach it.
[0020]
That is, a plurality of guide members 16 having circular insertion portions through which the vertical members 3 of the ladder body 2 are inserted are projected from the upper surface of the hanging metal body 10 at regular intervals, and are guided by the guide members 16. The vertical member 3 made of the wire rope or the like is installed along the upper surface of the hanging bracket main body 10, so that the weight of the ladder main body 2 is input to the locking member 11 via the vertical member 3. It has become.
[0021]
When the evacuation ladder having the above configuration is used, as shown by the phantom line in FIG. 3, with the locking member 11 of the hanging fitting 1 positioned at the tip end side of the hanging fitting main body 10, 10 is externally fitted to the hooked portion A, so that the hanging portion 9 of the hanging metal body 10 and the locking member 11 are disposed on both front and back sides of the hooked portion A, and the hanging metal fitting 1 is hooked. The ladder main body 2 is installed on the outer surface side of the hooked portion A while being hooked on the stop portion A.
[0022]
When the evacuation ladder is installed in this way, the direction in which the locking member 11 approaches the hanging portion 9 of the hanging metal body 10 according to the weight of the ladder body 2 acting on the locking member 11 via the vertical member 3. The sliding distance along the upper side portion 8 automatically adjusts the installation interval between the locking member 11 and the hanging portion 9 in accordance with the width dimension of the hooked portion A, and The hanging fitting 10 is hooked on the hooked portion A while the hanging portion 9 is pressed against the front and back surfaces of the hooked portion A.
[0023]
Next, as shown in FIG. 2, the one end of the above-described winding stopper member 5 that holds the ladder main body 2 in a state of being rolled in a sashimi shape is gripped, and the locking state of the locking member 6 made of a tape fastener is released. By pulling in the direction, the ladder main body 2 is suspended so that the ladder main body 2 is installed along the wall surface of the building. When the evacuation ladder installed in this manner is used to evacuate from a higher floor to the lower floor, the weight of the refugee acting on the ladder main body 2 is reduced by the vertical member 3 and the locking member 11 of the hanging fitting 1. , The locking member 11 is urged by a larger force in a direction approaching the hanging portion 9 of the hanging metal body 10, so that the hanging metal 10 is locked to the hooked portion A. Is more stably held.
[0024]
In the evacuation ladder provided with the ladder main body 2 formed by connecting the plurality of cross members 4 installed at a fixed interval as described above by the vertical members 3 and the hanging hardware 1 to be hooked on the hooked portion A. A hanging metal body 10 having an upper side 8 disposed above the hooked portion A and a hanging portion 9 extending downward from a base end thereof; and an upper side of the hanging metal body 10. A locking member 11 that is slidably supported along the portion 8 and extends downward facing the hanging portion 9, and the vertical member 3 of the ladder body 2 is attached to the hanging portion 9 and the upper side of the hanging metal body 10. Since the tip of the vertical member 3 is fixed to the locking member 11 and the hanging portion 9 of the hanging metal body 10 and the locking member 11 are externally fitted to the hooked portion A. Then, the ladder main body 2 is disposed on the outer surface side of the hooked portion A. According to this, according to the weight of the ladder body 2 acting on the locking member 11 via the vertical member 3, the locking member 11 is moved along the upper side 8 in a direction to approach the hanging part 9 of the hanging metal body 10. Can be slid.
[0025]
Therefore, the operation of fitting the hanging fitting 10 to the hooked portion A and installing the hanging fitting 10 without the need for complicated work such as fine adjustment of the installation interval between the hanging portion 9 of the hanging fitting main body 10 and the locking member 11. By easily pressing the hanging portion 9 and the locking member 11 against both the front and back surfaces of the hooked portion A with a strong force according to the weight of the ladder main body 2 and the weight of the refugee, Since the hanging state of the hanging metal fitting 10 with respect to the hanging part A can be stably held, there is an advantage that the evacuation ladder can be quickly installed and used safely.
[0026]
Further, in the above embodiment, the tubular body 12 fitted to the upper side 8 of the hanging metal body 10 is provided at the upper end of the locking member 11, and the tip of the vertical member 3 is fixed to the tubular body 12. At the same time, since the guide member 16 of the vertical member 3 is provided on the hanging member main body 10, the weight of the ladder main body 2 acting on the cylindrical body 12 provided at the upper end portion of the locking member 11 via the vertical member 3. Accordingly, the tubular body 12 can be smoothly slid and displaced along the upper side portion 8 of the hanging fitting main body 10. Therefore, the hanging state of the hanging fitting 10 with respect to the hooked portion A is stabilized by firmly pressing the hanging portion 9 and the plate-shaped body 13 of the locking member 11 against the front and back surfaces of the hooked portion A. There is an advantage that it can be held.
[0027]
In particular, as shown in the above embodiment, the installation angle between the upper side 8 and the hanging part 9 such that the upper side 8 of the hanging metal body 10 is inclined upward and is hooked on the hooked portion A. Is set, the self-weight of the ladder body 2 input to the locking member 11 via the vertical member 3 is applied to the urging force in the direction of bringing the locking member 11 closer to the hanging portion 9 of the hanging metal body 10. Therefore, the locking member 11 can be smoothly slid and displaced along the upper side portion 8 of the hanging bracket main body 10.
[0028]
As shown in FIGS. 4 and 5, the hanging metal body 10 is formed of a cylindrical body made of a round pipe material or the like, and is inserted into the upper side portion 8 of the hanging metal body 10 and slidably supported. A locking member 24 is formed by a slide body 21 made of a columnar member and a plate-like body 23 projecting downward through a slit 22 formed on the lower surface of the upper side portion 8. Alternatively, the vertical member 3 of the ladder main body 2 may be introduced, and the distal end thereof may be fixed to the slide body 21.
[0029]
In the case of the above structure, the vertical member 3 is provided along the hanging part 9 and the upper side part 8 of the hanging member main body 10 without providing a separate guide member, so that the locking member is provided. The weight of the ladder main body 2 and the like can be efficiently applied to the slide body 21 provided at the upper end of the ladder 24. Therefore, by sliding the slide body 21 in a direction approaching the hanging portion 9 of the hanging metal body 10 according to the weight of the ladder body 2 or the like with a simple configuration, the plate-like shape of the hanging portion 9 and the locking member 24 is formed. With the body 23 pressed against the front and back surfaces of the hooked portion A, the hanging fitting 1 can be stably hooked to the hooked portion A.
[0030]
When the hanging fitting main body 10 is made of a round pipe material, its peripheral surface tends to be in point contact with the hooked portion A, which tends to cause wobbling. For this reason, a support block 25 having a square cross section made of a synthetic rubber material or the like is attached to the hanging portion 9 of the hanging metal body 10, and the peripheral surface of the support block 25 is brought into contact with the surface of the hooked portion A. It is desirable that the suspension metal fitting body 10 be configured so as to prevent the wobble of the hanging bracket body 10 from coming into contact with the suspension fitting body 10.
[0031]
【The invention's effect】
As described above, the present invention provides an evacuation ladder including a ladder main body in which a plurality of horizontal members installed at regular intervals are connected by vertical members, and a hanging metal fitting that is hung on a hooked portion. In the above-mentioned hanging metal fitting, a hanging metal fitting body having an upper side portion provided above the hooked portion and a hanging portion extending downward from a base end thereof, and sliding along the upper side portion of the hanging metal fitting body. A locking member that is freely supported and extends downward facing the hanging portion, and the vertical member of the ladder body is installed along the hanging portion and the upper side portion of the hanging bracket body; Is fixed to the above-mentioned locking member, so that the hanging metal fitting is fitted to the hooked part without complicated work such as fine adjustment of the installation interval between the hanging part of the hanging metal fitting and the locking member. Installation work can be performed easily. Kill with the advantage that the latching state of the hanger with a strong force corresponding to the weight of its own weight and refugees ladder body with respect to the object retaining portion can be held stably.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an embodiment of an evacuation ladder according to the present invention.
FIG. 2 is an explanatory diagram showing a use state of the evacuation ladder.
FIG. 3 is an explanatory diagram showing a configuration of a hanging bracket.
FIG. 4 is an explanatory view showing another embodiment of the evacuation ladder according to the present invention.
FIG. 5 is a sectional view taken along line BB of FIG. 4;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Suspension metal fitting 2 Ladder main body 3 Vertical material 4 Horizontal material 8 Upper side part 9 Hanging part 10 Suspension metal fitting body 11 Locking member 12 Tubular body 18 Guide part 21 Slide body A Locking part
