JPH068592B2 - Electric storage ladder - Google Patents
Electric storage ladderInfo
- Publication number
- JPH068592B2 JPH068592B2 JP62314818A JP31481887A JPH068592B2 JP H068592 B2 JPH068592 B2 JP H068592B2 JP 62314818 A JP62314818 A JP 62314818A JP 31481887 A JP31481887 A JP 31481887A JP H068592 B2 JPH068592 B2 JP H068592B2
- Authority
- JP
- Japan
- Prior art keywords
- ladder
- storage
- storage frame
- pulley
- uppermost
- 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
Landscapes
- Ladders (AREA)
- Steps, Ramps, And Handrails (AREA)
Description
【発明の詳細な説明】 〔発明の目的〕 （産業上の利用分野） この発明は、長手方向に連続する複数の梯子を電動機の
動力により短縮しながら上方に回動して巻上げ、建物の
天井又は階上の床部に収容できる機能を備えた電動式の
格納梯子に関する。DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention is directed to a plurality of ladders, which are continuous in the longitudinal direction, while being swung upward while being shortened by the power of an electric motor to wind the ladder. Alternatively, the present invention relates to an electric storage ladder having a function of being able to be stored on the floor above the floor.
（従来の技術） 一般に、建物の階上と階下とを連絡する通路に格納梯子
を装備しておけば、本来、階段等を架設すべき空間を有
効に活用できるため、この種の梯子は、普段、出入りの
少ない場所や隔離性が要求される部屋に昔から良く使用
されており、その種類も例えば跳ね上げ式や伸縮式など
数多くのものが知られている。(Prior art) Generally, if a storage ladder is installed in the passage that connects the upper and lower floors of a building, the space where the stairs should originally be installed can be effectively used. It has been often used for a long time in places with little access and in rooms where isolation is required, and there are many known types such as flip-up type and telescopic type.
（発明が解決しようとする問題点） けれども、前記従来の格納梯子は、使用の際に梯子の上
げ下げをいずれも階下で手動的に行なうように構成され
ているため、取扱い操作が面倒で然かも大きな危険が伴
ない、また、建物の階高に応じて梯子の傾斜角が変化す
る関係上、その建物に合わせて設計及び製造された梯子
でなければ、梯子の踏桟が水平にならない事は勿論、支
脚の下端面が床面に安定した状態で接地せず、そのた
め、一種類の格納梯子をどの建物にも適合させて装備し
得る汎用性に欠け、量産による生産コストの低減化を実
現する上での難点があった。(Problems to be solved by the invention) However, since the conventional storage ladder is configured to manually raise and lower the ladder at the time of use, it may be troublesome to handle. Due to the great danger involved and the fact that the inclination of the ladder changes depending on the floor height of the building, the ladder cannot be horizontal unless it is designed and manufactured according to the building. Of course, the lower end surface of the supporting leg does not touch the floor surface in a stable state, so it lacks versatility to equip any building with one type of storage ladder, and realizes production cost reduction by mass production. There was a difficulty in doing it.
本発明は、前記のような問題を解決するために開発され
たもので、その目的は、長手方向に連続する複数の梯子
を電動機の動力により短縮しながら上方に回動して巻上
げ、建物の天井又は階上の床部に格納し得る機能を備
え、梯子の上げ下げを極めて迅速且つ安全確実に行な
い、しかも階高の如何に拘らず梯子の傾斜角を一定に保
持して床面に正しく接地させることが出来、著しく操作
性と汎用性に優れた量産向きの電動式格納梯子を安価に
提供することにある。The present invention was developed in order to solve the above problems, and an object of the present invention is to rotate a plurality of ladders continuous in the longitudinal direction while shortening them by the power of an electric motor to wind the ladders upward, Equipped with a function that can be stored on the ceiling or on the floor above the floor, it can raise and lower the ladder very quickly, safely and securely, and also keep the ladder's inclination angle constant regardless of the height of the floor to properly ground on the floor. It is possible to provide an electric storage ladder suitable for mass production, which has excellent operability and versatility at a low cost.
（問題点を解決するための手段） 本発明の電動式格納梯子では、上記目的を達成するため
の手段として、複数の梯子を長手方向に滑動可能に連結
して平行に重ね合わせた伸縮梯子を、最上段梯子の両側
に手摺を突設し、その最上段梯子の上端部を格納枠に支
軸で枢着し、収縮して格納枠の収容部内に収まり、斜め
下方へ伸長できる格納梯子において、格納枠の前記収容
部とは反対側空間部に、ブレーキモーターで駆動される
回転ドラムを設け、格納枠の収容部内に第２案内滑車と
固定滑車とを、支軸より収容部側に向い、且つ前記支軸
から手摺の突出高さを半径として描かれる範囲内に順次
配設し、前記回転ドラムから繰り出されるロープを第２
案内滑車を経て、最上段梯子の中間部に軸支した可動滑
車から前記固定滑車を経由して最下段梯子に連結してあ
ることを特徴とする。(Means for Solving Problems) In the electric storage ladder of the present invention, as a means for achieving the above object, an expansion and contraction ladder in which a plurality of ladders are slidably connected in the longitudinal direction and stacked in parallel is provided. In a storage ladder that has protruding handrails on both sides of the uppermost ladder, the upper end of the uppermost ladder is pivotally attached to the storage frame by a support shaft, contracts to fit inside the storage unit of the storage frame, and can extend diagonally downward. A rotary drum driven by a brake motor is provided in a space portion of the storage frame on the side opposite to the storage portion, and a second guide pulley and a fixed pulley are provided in the storage portion of the storage frame facing the storage portion side from the support shaft. Further, the ropes are successively arranged within a range drawn by the protrusion height of the handrail from the support shaft as a radius, and the rope extended from the rotary drum is secondly arranged.
It is characterized in that it is connected to the lowermost ladder from the movable pulley pivotally supported at the middle portion of the uppermost ladder via the guide pulley and the fixed pulley.
（実 施 例） 以下、本発明による電動式格納梯子の構造及びその使用
動作を実施例の図面について具体的に説明すると、図面
中符号10は本発明の主体になる伸縮梯子、１は前記の伸
縮梯子10を不使用時に短縮して収容するための格納枠を
示す。(Examples) The structure and operation of the electric storage ladder according to the present invention will be described below in detail with reference to the drawings of the embodiments. 1 shows a storage frame for accommodating the retractable ladder 10 when not in use.
伸縮梯子10は、複数の梯子11,12,13を長手方向に沿って
平行に重ね合わせ、これを伸縮可能な状態に連結したも
ので、前記の各梯子11,12,13は、いずれもアルミニウム
合金の押出形材または木製、鋼製の素材で製作されてお
り、本実施例の場合、中段の梯子12には、縦桟12aの外
側面に上下一対のガイドレール14,15が平行に列設さ
れ、最上段の梯子11の縦桟11aには、前記のガイドレー
ル14,15のうち下部ガイドレール15に跨って嵌合するコ
字形断面の滑動縁部17、最下段の梯子13の縦桟13aに
は、上部ガイドレール14に跨って嵌合するコ字形断面の
滑動縁部16が突設されている。このうち、上部ガイドレ
ール14の上端部と下部ガイドレール15の下端部、及び最
下段の梯子13の滑動縁部16上端と最上段の梯子11の滑動
縁部17下端には、中段の梯子12に対する最下段の梯子13
の滑動範囲及び最上段の梯子11に対する中段の梯子12の
滑動範囲を規制するストッパー14a,15a及び16a,17aが設
けてあり、前記の伸縮梯子10は、各梯子11,12,13を最小
の長さに短縮した状態で上方に回動し、格納枠１の内部
へ収容できるように、最上段の梯子11の上端部に貫通す
る支軸18で格納枠１の両側壁1a,1a間に回動可能に枢着
されている。The telescopic ladder 10 is made by stacking a plurality of ladders 11, 12 and 13 in parallel along the longitudinal direction and connecting them in an extendable and retractable state. Each of the above ladders 11, 12 and 13 is made of aluminum. It is made of extruded alloy material, wood, or steel.In this embodiment, a pair of upper and lower guide rails 14 and 15 are arranged in parallel on the outer surface of the vertical rail 12a in the middle ladder 12. The vertical rail 11a of the uppermost ladder 11 is provided with a sliding edge 17 of a U-shaped cross section that fits over the lower guide rail 15 among the above-mentioned guide rails 14 and 15, and a vertical length of the lowermost ladder 13. On the crosspiece 13a, a sliding edge portion 16 having a U-shaped cross section, which is fitted over the upper guide rail 14, is provided in a protruding manner. Among these, the upper end of the upper guide rail 14 and the lower end of the lower guide rail 15, and the upper edge of the sliding edge 16 of the lowermost ladder 13 and the lower edge of the sliding edge 17 of the uppermost ladder 11, the middle ladder 12 Bottom ladder against 13
There are stoppers 14a, 15a and 16a, 17a for restricting the sliding range of the middle stage ladder 12 with respect to the uppermost ladder 11 and the telescopic ladder 10 described above has the minimum of each ladder 11, 12, 13 Between the two side walls 1a, 1a of the storage frame 1 with a support shaft 18 penetrating the upper end of the uppermost ladder 11 so that the storage frame 1 can be housed inside the storage frame 1 by rotating upward in a shortened state. It is pivotably attached.
次に、図面中符号２は前記の伸縮梯子10を上げ下げする
ために格納枠１内部に設置したブレーキモーター、３は
このブレーキモーター２によって駆動される回転ドラム
である。Next, reference numeral 2 in the drawing denotes a brake motor installed inside the storage frame 1 for raising and lowering the expansion and contraction ladder 10, and 3 denotes a rotary drum driven by the brake motor 2.
従って、格納枠１は長方形の枠体をなし、その長手方向
の前部を前記伸縮梯子10が嵌まる収容部24となし、後部
をブレーキモーター２及び回転ドラム３が収まる空間部
25とするものである。Therefore, the storage frame 1 forms a rectangular frame body, and the front portion in the longitudinal direction thereof serves as a storage portion 24 into which the expandable ladder 10 is fitted, and the rear portion is a space portion in which the brake motor 2 and the rotating drum 3 are stored.
It is supposed to be 25.
前記ブレーキモーター２の出力軸2aと回転ドラム３の入
力軸3aには各々スプロケット４，５を装着し、両スプロ
ケット４，５間に架設されたチェーン６によりブレーキ
モーター２の正逆両方向の回転運動が回転ドラム３に伝
達され、この回転ドラム３から繰り出されるロープ７
（ワイヤーロープ又はナイロン等の合成繊維製ロープ）
の先端部は、第１図図示の如く空間部25側の第１案内滑
車19aと第２案内車19bとを経て、最上段の梯子11の中間
部に設けた可動滑車８と格納枠１側に設けた固定滑車９
の間を１回わり乃至２回わりした後、使用時に手や足が
触れないように各梯子11,12,13の両側部を通って、最下
段の梯子13の下端部に連結されている。Sprockets 4 and 5 are mounted on the output shaft 2a of the brake motor 2 and the input shaft 3a of the rotary drum 3, respectively, and the chain 6 installed between the sprockets 4 and 5 rotates the brake motor 2 in both forward and reverse directions. Is transmitted to the rotary drum 3, and the rope 7 is paid out from the rotary drum 3.
(Wire rope or synthetic fiber rope such as nylon)
As shown in FIG. 1, the tip end of the movable pulley 8 passes through the first guide pulley 19a and the second guide pulley 19b on the side of the space 25, and the movable pulley 8 and the storage frame 1 side provided in the middle of the uppermost ladder 11. Fixed pulley 9 installed in
After turning once or twice between, it is connected to the lower end of the lowermost ladder 13 through both sides of each ladder 11, 12, 13 so that the hands and feet do not touch it during use. .
なお、図面中符号20は最上段の梯子11の下面に設けた開
口部閉鎖用の底板、21は同じく最上段の梯子11の両側部
に取付けた手摺り、22と23は伸縮梯子10の回動完了時機
を検出してブレーキモーター２の駆動を自動的に停止さ
せるためのリミットスイッチである。In the drawing, reference numeral 20 is a bottom plate for closing the opening provided on the lower surface of the uppermost ladder 11, 21 is a handrail also attached to both sides of the uppermost ladder 11, and 22 and 23 are the hinges of the telescopic ladder 10. This is a limit switch for automatically stopping the drive of the brake motor 2 by detecting the moment when the motion is completed.
ところで、ロープ７の掛け方は前述のように掛けるが、
ロープ７で傾斜して伸長している伸縮梯子10を収縮して
格納枠１内に収める際、最下段梯子13が中段梯子12上に
重なり、次いでその重なった下中の梯子13,12が重なっ
たままで最上段の梯子11上に重なり、その後に支軸18を
中心として回転して格納枠１の収容部24内に収まるもの
であるが、その際に仮に、可動滑車８が支軸18よりでき
るだけ離れて設け、更に第２案内滑車19bを格納枠１の
収容部24における先端部側に寄せて設けることにより、
前記固定滑車９を不用として、軽い力で格納枠１の収容
部24内に収めることができる有利さがある。しかし以上
のようにロープ７を掛けると、伸縮梯子10を降ろした場
合、格納枠１の先端部に設けた第２案内滑車19bと、最
上段の梯子11の可動滑車８間に掛けた部分のロープ７が
最上段の梯子11の両側に露出し、昇降する人や持ってい
る品物に引っ掛かる恐れが多分にあり、安全上に問題が
生じることになる。そこで安全性を保持するため、前記
第２案内滑車19bを支軸18寄りに設ければ良いが、伸縮
梯子10を回転して収納枠１内に収める時の巻き上げる力
が大きくなるという欠点が生じる。By the way, the rope 7 is hung as described above,
When the telescopic ladder 10 that is inclined and extended by the rope 7 is contracted and stored in the storage frame 1, the lowermost ladder 13 overlaps the middle ladder 12, and then the overlapped lower middle ladders 13 and 12 overlap. It remains on the uppermost ladder 11 and then rotates around the support shaft 18 to fit inside the storage portion 24 of the storage frame 1. At that time, the movable pulley 8 is temporarily moved from the support shaft 18. By providing the second guide pulley 19b as close as possible to the tip end side of the housing portion 24 of the storage frame 1,
There is an advantage that the fixed pulley 9 is unnecessary and can be housed in the housing portion 24 of the storage frame 1 with a light force. However, when the rope 7 is hung as described above, when the telescopic ladder 10 is unloaded, the portion between the second guide pulley 19b provided at the tip of the storage frame 1 and the movable pulley 8 of the uppermost ladder 11 is hung. The rope 7 is exposed on both sides of the uppermost ladder 11, and there is a possibility that it will be caught by a person moving up and down or an item that they have, which causes a safety problem. Therefore, in order to maintain the safety, the second guide pulley 19b may be provided near the support shaft 18, but there is a drawback that the winding force when the telescopic ladder 10 is rotated and stored in the storage frame 1 becomes large. .
本発明の特徴は以上の問題を解決するために、前述のよ
うにロープ７を掛けるもので、特に第２案内滑車19bと
固定滑車９を下記の条件で設ける。In order to solve the above problems, the feature of the present invention is to hang the rope 7 as described above. In particular, the second guide pulley 19b and the fixed pulley 9 are provided under the following conditions.
即ち、第１図に示しているように、格納枠１の収容部24
側で、支軸18から手摺21の突出長さを半径ｒとして描く
範囲内に、第２案内滑車19bと固定滑車９とを支軸18側
より順次配設し、ロープ７を第１案内滑車19aから第２
案内滑車19bを経て、梯子11の可動滑車８に至り、一旦
固定滑車９を迂回してから、再び梯子11の可動滑車８を
経て最下端の梯子13の下端に連結するものである。That is, as shown in FIG. 1, the housing portion 24 of the storage frame 1
On the side, the second guide pulley 19b and the fixed pulley 9 are sequentially arranged from the support shaft 18 side within a range in which the protruding length of the handrail 21 from the support shaft 18 is drawn as a radius r, and the rope 7 is attached to the first guide pulley. 2nd from 19a
The movable pulley 8 of the ladder 11 is reached via the guide pulley 19b, the fixed pulley 9 is once detoured, and the movable pulley 8 of the ladder 11 is again connected to the lower end of the lowermost ladder 13.
本発明の電動式格納梯子は上記のような構造になってい
るので、建物の階上から階下の床面26に第１図図示の如
く架設されている伸縮梯子10を不使用時に天井の格納枠
１内に収容する場合、部屋の壁面等に設けてある操作ス
イッチ（図示せず）をＯＮにし、ブレーキモーター２を
巻上げ方向に駆動すれば、回転ドラム３が矢印図示の方
向に回転してロープ７の巻取りを開始する。前記の動作
によってロープ７に矢印図示のような引張力が作用した
場合、左右一対のロープ７，７で下段の梯子12を中段の
梯子13上にストッパー14aにまで引き上げた後、二層に
重なった下段、中段の梯子12,13を最上段の梯子11上に
ストッパー15aが最上段の梯子11に突き当たるまで引き
上げ、次いで上中下段の梯子11,12,13を支軸18を支点と
して回動する仕組みになっている。Since the electric storage ladder of the present invention has the above-mentioned structure, the retractable ladder 10 which is erected on the floor surface 26 from the upper floor to the lower floor of the building as shown in FIG. When housed in the frame 1, by turning on an operation switch (not shown) provided on the wall surface of the room and driving the brake motor 2 in the winding direction, the rotary drum 3 rotates in the direction shown by the arrow. The winding of the rope 7 is started. When the pulling force as shown by the arrow acts on the rope 7 by the above operation, the lower ladder 12 is pulled up to the stopper 14a on the middle ladder 13 by the pair of left and right ropes 7, 7 and then the two layers are overlapped. The lower and middle ladders 12 and 13 are pulled up on the uppermost ladder 11 until the stopper 15a hits the uppermost ladder 11, and then the upper, middle and lower ladders 11, 12 and 13 are rotated around the spindle 18 as a fulcrum. It is a mechanism to do.
ところで、上記の下段の梯子13を中段の梯子12上に引き
上げる間、及び二層に重なった下段、中段の梯子13,12
を最上段の梯子11上に引き上げる間は、最上段の梯子11
に設けた可動滑車８は固定滑車的に作動するが、三層に
重ねられ傾斜状態から格納枠１に向かって回転する時に
は、動滑車の作動となり、ロープ７の張力が理論的に
は、三層に重ねた梯子を回転するモーメントの２分の１
の力となり、ブレーキモーター２に異常の荷重を加える
ことなく、第３図図示の如く水平に収容することができ
るものである。また、伸縮梯子10が完全に格納枠１内部
に収容されると、ミリットスイッチ22が作動し、ブレー
キモーター２の回転を停止させると共に、該モーター２
内部のブレーキを作動させ、回転ドラム３のロープ７が
解弛しないように保持固定する。By the way, while the above-mentioned lower ladder 13 is pulled up onto the middle ladder 12, and the lower and middle ladders 13, 12 which are stacked in two layers.
The uppermost ladder 11 while pulling up
The movable pulley 8 provided in the above-mentioned works as a fixed pulley, but when it is stacked in three layers and rotates from the inclined state toward the storage frame 1, it becomes the operation of the moving pulley, and theoretically, the tension of the rope 7 becomes three. Half of the moment of rotating the ladders stacked in layers
Therefore, the brake motor 2 can be stored horizontally as shown in FIG. 3 without applying an abnormal load to the brake motor 2. Further, when the telescopic ladder 10 is completely housed inside the storage frame 1, the millimeter switch 22 is actuated to stop the rotation of the brake motor 2 and the motor 2
The internal brake is operated to hold and fix the rope 7 of the rotating drum 3 so as not to loosen.
また、前記の伸縮梯子10を格納枠１から巻下ろして使用
するには、操作スイッチ（図示せず）を再びＯＮにして
ブレーキモーター２を巻下げ方向に駆動すれば、前記の
場合とは全く逆の経過により、先ず伸縮梯子10全体が支
軸18を支点にして斜め下方に回動し、その回動を格納枠
１側のストッパー24aで所定の傾斜角に阻止した後、最
上段の梯子11から中段の梯子12と最下段の梯子13とを一
緒に滑り出し、次いで、中段の梯子12から最下段の梯子
13を滑動して階下の床面に接地させ、これを回転ドラム
３と案内滑車19a間に生じるロープ７の弛みで検出する
リミットスイッチ23（第５図）により感知し、ブレーキ
モーター２の回動を自動的に停止する動作によって行な
う。In order to unwind and use the telescopic ladder 10 from the storage frame 1, the operation switch (not shown) is turned on again and the brake motor 2 is driven in the unwinding direction. By the reverse process, first, the entire telescopic ladder 10 is rotated obliquely downward with the support shaft 18 as a fulcrum, and the rotation is blocked by the stopper 24a on the side of the storage frame 1 to a predetermined inclination angle, and then the uppermost ladder. Slide the middle ladder 12 and the bottom ladder 13 together from 11 and then the middle ladder 12 to the bottom ladder
Sliding 13 to make contact with the floor below, and this is detected by the limit switch 23 (Fig. 5) that detects the slack of the rope 7 between the rotary drum 3 and the guide pulley 19a, and the rotation of the brake motor 2 is detected. Is automatically stopped.
この場合、建物の床面26に対する伸縮梯子10の傾斜角θ
は、たとえ、建物の階高が異なっていても、最下段の梯
子13が中段の梯子12のガイドレール14に沿って長手方向
に滑動するだけで全く変化することがないため、一種類
の伸縮梯子10を階高の違った建物にもそのまゝ使用でき
る事は勿論、最下段の梯子13の下端面が常に一定の角度
で正しく床面26に接地し、且つ、各踏桟11b,12b,13bが
水平に保持される。また、本実施例の場合、１組の伸縮
梯子10は、上中下３段の梯子11,12,13で形成してある
が、これを２段又は４段、５段に構成することもでき
る。In this case, the inclination angle θ of the telescopic ladder 10 with respect to the floor surface 26 of the building
Even if the floor heights of the buildings are different, one type of expansion / contraction does not occur because the bottom ladder 13 slides in the longitudinal direction along the guide rails 14 of the middle ladder 12 at all. The ladder 10 can be used as it is for buildings with different floor heights, and the lower end surface of the lowermost ladder 13 is always properly grounded to the floor surface 26 at a constant angle, and each step 11b, 12b , 13b are held horizontally. Further, in the case of the present embodiment, one set of the expandable ladders 10 is formed by the ladders 11, 12 and 13 of upper, middle and lower three stages, but it is also possible to configure this into two stages, four stages or five stages. it can.
上述の如く、本発明によれば、従来の場合と違って、長
手方向に連続する複数の梯子を電動機の動力により短縮
しながら上方に回動して巻上げ、建物の天井又は階上の
床部に格納するが、その巻上げるロープが伸縮梯子の両
側を送行するように配設して、昇降する人に対して安全
性を保持すると共に、ロープに無理な緊張力が加わらな
いように、特に格納枠に設けた第２案内滑車と固定滑車
とを、伸縮梯子の格納枠に対する支軸から手摺までの突
出長さを半径とする範囲内で、しかも支軸より収容受側
寄りに対向して配し、各梯子を重ねた以後の回転時に、
最上段梯子に設けた可動滑車を固定滑車に対する動滑車
として作動することから、前記作用効果が確実に得られ
るようになる。As described above, according to the present invention, unlike the conventional case, a plurality of ladders continuous in the longitudinal direction are swung upward and wound while being shortened by the power of the electric motor, and the ceiling of the building or the floor above the floor. The ropes to be hoisted are arranged so as to travel on both sides of the telescopic ladder to maintain safety for people going up and down, and especially to prevent unreasonable tension on the ropes. The second guide pulley and the fixed pulley provided on the storage frame are arranged within a range in which the projecting length from the support shaft to the handrail of the expandable ladder to the handrail is a radius, and the two guide guide pulleys and the fixed pulley are opposed to the storage support side of the support shaft. Arranged, when rotating after stacking each ladder,
Since the movable pulley provided on the uppermost ladder operates as a moving pulley with respect to the fixed pulley, the above-mentioned effects can be reliably obtained.
第１図は本発明による電動式格納梯子の具体的な実施構
造の一例を示す側面図、第２図は同じく正面図、第３図
は第１図Ａ−Ａ線位置の拡大断面図、第４図は伸縮梯子
の格納状態を示す側面図、第５図は梯子巻下ろし停止用
リミットスイッチの一例を示す側面図である。 １…格納枠、２…ブレーキモーター、 ３…回転ドラム、７…ロープ、８…可動滑車、 ９…固定滑車、10…伸縮梯子、θ…傾斜角、 11…最上段の梯子、12…中段の梯子、 13…最下段の梯子、14…上部ガイドレール、 14a,15a,16a,17a,24a…ストッパー、 15…下部ガイドレール、18…支軸 19a…第１案内滑車 19b…第２案内滑車、 22,23…リミットスイッチ 24…収容部 25…空間部FIG. 1 is a side view showing an example of a concrete implementation structure of an electric storage ladder according to the present invention, FIG. 2 is a front view of the same, and FIG. 3 is an enlarged sectional view taken along line AA of FIG. FIG. 4 is a side view showing a retracted state of the telescopic ladder, and FIG. 5 is a side view showing an example of a limit switch for stopping and lowering the ladder. 1 ... Storage frame, 2 ... Brake motor, 3 ... Rotating drum, 7 ... Rope, 8 ... Movable sheave, 9 ... Fixed sheave, 10 ... Telescopic ladder, θ ... Inclination angle, 11 ... Top ladder, 12 ... Middle stage Ladder, 13 ... bottom ladder, 14 ... upper guide rail, 14a, 15a, 16a, 17a, 24a ... stopper, 15 ... lower guide rail, 18 ... spindle 19a ... first guide pulley 19b ... second guide pulley, 22,23 ... Limit switch 24 ... Container 25 ... Space
Claims (1)
に連結して平行に重ね合わせた伸縮梯子10を、最上段梯
子11の両側に手摺21を突設し、その最上段梯子の上端部
を格納枠１に支軸18で枢着し、収縮して格納枠の収容部
24内に収まり、斜め下方へ伸長できる格納梯子におい
て、格納枠１の前記収容部24とは反対側空間部25に、ブ
レーキモーター２で駆動される回転ドラム３を設け、格
納枠１の収容部24内に第２案内滑車19bと固定滑車９と
を、支軸18より収容部24側に向い、且つ前記支軸18から
手摺21の突出高さを半径rとして描かれる範囲内に順次
配設し、前記回転ドラム３から繰り出されるロープ７を
第２案内滑車19bを経て、最上段梯子11の中間部に軸支
した可動滑車８から前記固定滑車９を経由して最下段梯
子13に連結してあることを特徴とする電動式格納梯子。1. An expansion / contraction ladder 10 in which a plurality of ladders 11, 12, 13 are slidably connected in the longitudinal direction and stacked in parallel, and a handrail 21 is projected on both sides of the uppermost ladder 11, and the uppermost step thereof is provided. The upper end of the ladder is pivotally attached to the storage frame 1 by the support shaft 18, and is contracted to receive the storage frame.
In the storage ladder that can be accommodated in 24 and can extend obliquely downward, the rotary drum 3 driven by the brake motor 2 is provided in the space portion 25 of the storage frame 1 opposite to the storage portion 24, and the storage portion of the storage frame 1 is provided. The second guide pulley 19b and the fixed pulley 9 are sequentially arranged in the inside of 24 in a range which is drawn from the support shaft 18 toward the accommodating portion 24 and in which the protruding height of the handrail 21 from the support shaft 18 is drawn as a radius r. Then, the rope 7 fed from the rotary drum 3 is connected to the lowermost ladder 13 via the second guiding pulley 19b, the movable pulley 8 pivotally supported in the middle of the uppermost ladder 11 and the fixed pulley 9. An electric retractable ladder that is characterized by being installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62314818A JPH068592B2 (en) | 1987-12-11 | 1987-12-11 | Electric storage ladder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62314818A JPH068592B2 (en) | 1987-12-11 | 1987-12-11 | Electric storage ladder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01154988A JPH01154988A (en) | 1989-06-16 |
| JPH068592B2 true JPH068592B2 (en) | 1994-02-02 |
Family
ID=18057971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62314818A Expired - Lifetime JPH068592B2 (en) | 1987-12-11 | 1987-12-11 | Electric storage ladder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH068592B2 (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0332662Y2 (en) * | 1984-11-22 | 1991-07-11 |
-
1987
- 1987-12-11 JP JP62314818A patent/JPH068592B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01154988A (en) | 1989-06-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8292031B2 (en) | Platform lift apparatus for attic storage space | |
| US8851238B2 (en) | Lifting system | |
| US7357223B2 (en) | Platform lift apparatus with integrated ladder for accessing attic storage space | |
| CA2039358A1 (en) | Stairlift | |
| US2236019A (en) | Hoist | |
| US20070269303A1 (en) | Combination loft ladder and lift | |
| US6050366A (en) | Combined stairway and lift installation and a retractable stairway | |
| KR102464012B1 (en) | Gondola for work at height | |
| JPH1081463A (en) | Side fork type elevator | |
| JPH068592B2 (en) | Electric storage ladder | |
| WO2007132272A1 (en) | Combination loft ladder & lift | |
| JP4454765B2 (en) | elevator | |
| US5025891A (en) | Escape for a building | |
| KR0128113Y1 (en) | Ascent and descent device of step | |
| KR101794202B1 (en) | Lower drive shaft operating system of retractable door-lift vertically for elevator | |
| EP0912809B1 (en) | A combined stairway and lift installation | |
| JPH0588629B2 (en) | ||
| JPH04140298A (en) | Hatchway cover device for passenger conveyer | |
| US1376253A (en) | Elevator | |
| JP2710535B2 (en) | Ceiling storage ladder | |
| JP2530834Y2 (en) | Equipment for loading and unloading elevators for construction | |
| JP3486158B2 (en) | Elevating device for ceiling storage | |
| JP2536878Y2 (en) | Opening / closing device for transport doors of construction elevators | |
| JP3644213B2 (en) | Electric ceiling storage ladder | |
| KR970005482Y1 (en) | Automatic sliding gate for safety railings |