JPS6059261A - Accommodation ladder - Google Patents

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】 この発明は建物の天井に設置して天井空間に上がる為に
使用する収納梯子に関するもので、梯子を天井の収納位
置にロック装置によって確実に掛［ＪＺめすることかで
き、しかもその梯子の収納位置への掛止及び掛は外し操
作を容易にかつ安全に行えるようにした収納梯子を提供
しようとするもの以下本願の実施例を示す図面について
説明する０第１図において、］は建物の床、２は天井、
３は屋根、４は居住空間、５は天井空間で、この天井空
間５と居住空間４は上記天井２によって仕切られている
。上記天井２は第２図、第ｔＦＡ、第５図に示すように
構成されている。この天井２において、６は天井板、７
は天井床板で、これらには相対向する位置に開口孔６ａ
　、７ａが形成されている。８は開口孔６ａ縁に沿って
天井板６上に止着された枠材、９は開口孔６ａ、７ａに
嵌合された開口枠で、外周面に止着された係合金具】０
が上記枠材８上に乗載されて止着されている。この開口
枠９は長方形状の開口部１１を形成している。次に、し
は梯子取付板で、第２図に示すように一端部が開口枠９
の端枠９ａに蝶番詔を介して回動自在に枢着され、その
他端部は後述のロック装置によって上記開口枠９の端枠
９Ｃに掛は外しし得るように構成されている。この梯子
取付板Ｐは上記開口部１１の閉塞板を兼ねており、その
平面形状は開口部１１に略合致するように対応形成され
、ロック装置によって開口枠９に掛止めした収納状態に
おいては第ｑ図、第を図に示すように開口部■を塞ぐよ
うになっている。まだ上記梯子取付板技の下面は上記天
井板６下面と同一模様や同一色彩にしてあシ、収納状態
においては天井板６の一部を構成するようになっている
が、必ずしもこれに限定されるものではない。１４は上
記梯子取付板校の枢着部側端部の上面に取付ボルト・ナ
ツト１５によって固着されている連結腕で、第２図、第
３図に示すように梯子取付板νの上面に対して略直角な
方向に左、右一対立設されている。１６は同じく梯子取
付板νの目出端側端部の上面に取付ボルト・ナツト１７
によって固着されている取付腕で、上記連結腕１４と対
応するように左、右一対立設されている。[Detailed Description of the Invention] This invention relates to a storage ladder that is installed on the ceiling of a building and used to climb up to the ceiling space. This invention aims to provide a storage ladder that can be easily and safely latched to and unlatched from the storage position.The following describes the drawings showing the embodiments of the present application.FIG. 1 ] is the floor of the building, 2 is the ceiling,
3 is a roof, 4 is a living space, and 5 is a ceiling space, and the ceiling space 5 and the living space 4 are partitioned by the ceiling 2. The ceiling 2 is constructed as shown in FIG. 2, tFA, and FIG. 5. In this ceiling 2, 6 is a ceiling board, 7
are ceiling floor plates, and these have opening holes 6a at opposite positions.
, 7a are formed. Reference numeral 8 denotes a frame material fixed to the ceiling plate 6 along the edge of the opening hole 6a, 9 is an opening frame fitted to the opening holes 6a and 7a, and an engaging metal fitting fixed to the outer peripheral surface]0
is placed on and fixed to the frame member 8. This opening frame 9 forms a rectangular opening 11. Next is the ladder mounting plate, one end of which is the opening frame 9, as shown in Figure 2.
It is rotatably attached to the end frame 9a of the opening frame 9 via a hinge, and the other end can be unlatched from the end frame 9C of the opening frame 9 by means of a locking device which will be described later. This ladder mounting plate P also serves as a closing plate for the opening 11, and its planar shape is formed to approximately match the opening 11. As shown in Figure q and Figure 1, the opening ■ is closed. Still, the lower surface of the ladder mounting plate technique has the same pattern or the same color as the lower surface of the ceiling plate 6, and forms part of the ceiling plate 6 in the stored state, but it is not necessarily limited to this. It's not something you can do. Reference numeral 14 denotes a connecting arm that is fixed to the upper surface of the end of the pivoting part of the ladder mounting plate with a mounting bolt/nut 15, and is attached to the upper surface of the ladder mounting plate ν as shown in FIGS. 2 and 3. The left and right sides are arranged approximately perpendicular to each other. 16 is also a mounting bolt/nut 17 on the top surface of the protruding end side of the ladder mounting plate ν.
The mounting arms are fixedly fixed by the mounting arms 14, and are provided in pairs on the left and on the right so as to correspond to the connecting arms 14 described above.

迅は上記連結腕１４と取付腕１６に取付けられた梯子で
、第２図〜第１／図に示すように構成されている。この
梯子１８において、１９は第１梯子要素、加は第２梯子
要素、囚は第３梯子要素で、これらの第７梯子要素１９
と第２梯子要素ｍは左、右一対の第１連結金具ηによシ
、第２梯子要素頷と第３梯子要素りは左、右一対の第２
連結金具ηにより折畳み可能に連結されている。上記第
１梯子要素１９は第２図、第を図に示すように左、右の
側板勿。The ladder is a ladder attached to the connecting arm 14 and the attaching arm 16, and is constructed as shown in FIGS. 2 to 1. In this ladder 18, 19 is the first ladder element, addition is the second ladder element, prison is the third ladder element, and these seventh ladder elements 19
and the second ladder element m are connected to the left and right pair of first connecting fittings η, and the second ladder element and the third ladder element are connected to the left and right pair of second connecting fittings η.
They are foldably connected by a connecting fitting η. The first ladder element 19 has left and right side plates as shown in FIG.

別ととれらの側板勢、２４間に等間隔に数句けられた複
数の踏板３とで構成され、この両側板勢、２４の外側面
が上記連結腕１４　、１４と取付腕１６　、１６に取付
ポル）−ナラ）’２６．７７によって夫々固定的に取付
けられている。なお上記第２俤子要素加と第３梯子要素
２１も第１梯子要素１９と同様に構成されている。上記
第１連結金具ηは第１図〜第１／図に示すように構成さ
れている。この第１連結金具ｎにおいて、公は第１梯子
要素１９の側板冴に取付ポル）−ナツト四によシ固着さ
れた連結板で、自体の一部を折曲けることによってスト
ッパーを兼ねたばね掛止部美が形成されている。３１ｉ
ｄ第２梯子要素加の側板′２ｆＪｎに取付ポルドーナツ
）３２によシ固着された連結板で、この連結板３１と上
記連結板あとは、第１梯子要素１９の下端と第２梯子要
素加の上端をびっだシ突き合わせた状態においてその突
き合わせ面と第１梯子要素１９の上面とが交差する線を
中心とする連結ピン蕊によって回動自在に連結されてい
る。この連結板３１には上記連結ビンおから離れだ位置
に掛止ビン調が突設されている。The side plates 24 are composed of a plurality of tread plates 3 arranged at equal intervals between the two side plates 24, and the outer surfaces of the side plates 24 are connected to the connecting arms 14, 14 and the mounting arms 16, 16. They are fixedly attached to the poles (Pol) and Nara) '26.77, respectively. Note that the second ladder element 21 and the third ladder element 21 are configured similarly to the first ladder element 19. The first connecting fitting η is constructed as shown in FIGS. 1 to 1/. In this first connecting fitting n, the connecting plate is attached to the side plate of the first ladder element 19 and is fixed to the nut 4, and by bending a part of the connecting plate, it can be used as a spring hook that also serves as a stopper. A tobe beauty is formed. 31i
d A connecting plate fixed to the side plate '2fJn of the second ladder element (pol donut) 32. This connecting plate 31 and the connecting plate are connected to the lower end of the first ladder element 19 and the second ladder element. With the upper ends abutted against each other, the abutting surfaces and the upper surface of the first ladder element 19 are rotatably connected by a connecting pin hole centered on a line that intersects with the upper surface of the first ladder element 19. The connecting plate 31 is provided with a hanging pin in a protruding position away from the connecting bottle.

羽は上記連結板列に枢軸菖によシ回動自在に枢着された
掛止片で、自体の一部を折曲げることによってげね掛止
部Ｗが形成されている。この掛止片部はげね掛止部（９
）、３７間に張設されたばね羽により第ｇ図において下
方へ付勢されてばね掛止部Ｘに当接されるようになって
いる。上記掛止片あの先端部には第１θ図に示すように
第１梯子要素１（１・と第２梯子要素加を一直線状に伸
ばしたとき上記掛止ビン渕を係止する係合溝艶と、第９
図に示すように第１梯子要素１９に対して第２梯子要素
加を引き伸ばす過程において上記掛止ビン別を係合溝刃
に案内するようにした案内斜面菊とが形成されている。The wing is a hooking piece that is rotatably attached to the connecting plate row by a pivot iris, and a barb hooking portion W is formed by bending a part of the wing. This latching piece has a spring latching part (9
) and 37 are biased downward in FIG. As shown in Figure 1θ, the tip of the above-mentioned latching piece has an engaging groove that engages the above-mentioned latching bottle edge when the first ladder element 1 (1) and the second ladder element are extended in a straight line. and the ninth
As shown in the figure, a guide slope chrysanthemum is formed on the first ladder element 19 to guide the above-mentioned hooking pin to the engagement groove blade in the process of extending the second ladder element.

次に、上記第２連結金具ｎにおいて、４１は第２梯子要
素加の側板に固定的に取付けられた連結板、弦は第３梯
子要素２１の側板に固定的に取付けられた連結板で、こ
れらの連結板４１　、４２は第２梯子要素加の下端と第
３梯子要素汀の上端をびったり突き合わせた状態におい
てその突き合わせ面と第２梯子要素加の下面とが交差す
る線を中心とする連結ビン４３によって回動自在に連結
されている。次に、４４ｔ；ｉ第１梯子要素１９に付設
された手摺で、第２図、第を図に示すように一端部が上
記連結腕１４の先端部に、他端部が第７梯子要素１９の
側板別に夫々止着されて左、右一対配設されている。Next, in the second connecting fitting n, 41 is a connecting plate fixedly attached to the side plate of the second ladder element addition, and the string is a connecting plate fixedly attached to the side plate of the third ladder element 21, These connecting plates 41 and 42 are centered on a line where the abutting surfaces intersect with the lower surface of the second ladder element when the lower end of the second ladder element and the upper end of the third ladder element are butted against each other. They are rotatably connected by a connecting pin 43. Next, 44t; i is a handrail attached to the first ladder element 19, and as shown in FIGS. A pair of left and right side panels are fixed to each side plate.

第２図において、柘は上記梯子１８等の自重による下向
きの回転モーメントを小さくする為の圧縮ばね装置で、
第７２図〜第７６図に示すように構成され、梯子用の両
側に夫々配設されている。この圧縮ばね装置６において
、菊は圧縮ばねとして例示するガススフリングで、一端
部は移動部月として例示する連結腕１４の先端部に連結
具４７を介して連結され、他端部は基準部材として例示
する開口枠９の側枠９ｂ中間部に連結具絽を介して連結
されている。なお圧縮ばねとしては圧縮コイルばねを利
用したものでも良い。上記ガススプリング４６において
、４９は一端部が塞がれている筒形のシリンダ本体、父
はシリンダ本体４９の開口部に嵌着されたシール体で、
ロッド孔５０Ｂが形成されている。In FIG. 2, 柘 is a compression spring device for reducing the downward rotational moment due to the weight of the ladder 18, etc.
It is constructed as shown in FIGS. 72 to 76, and is provided on both sides of the ladder. In this compression spring device 6, Chrysanthemum is a gas spring exemplified as a compression spring, one end of which is connected to the tip of the connecting arm 14, exemplified as a movable part, via a connector 47, and the other end is exemplified as a reference member. It is connected to the middle part of the side frame 9b of the opening frame 9 via a connector. Note that a compression coil spring may be used as the compression spring. In the gas spring 46, 49 is a cylindrical cylinder body with one end closed, and 49 is a seal body fitted into the opening of the cylinder body 49.
A rod hole 50B is formed.

日はシリンダ本体４９内に摺動自在に嵌合されたピスト
ンで、左、右のシリンダ室４ｇａ、ａｂを連通させる細
い連通孔５２が形成されている。５３は上記ロッド孔５
０ＦＬに嵌挿されたピストンロンドで、先端部は上記ピ
ストン５１に連結されている。５４ｉ、ｊ：シール体間
側のシリンダ室４９　ａ内に嵌装された減衰ばねである
。上記シリンダ室４ｇａ、４９ｂ内には圧縮ガスが封入
され、この圧縮ガスのガスＦ、Ｅによってヒストンロン
ド品に突出方向の推力を付与するようになっている。こ
の推力はピストンＭの両側の受圧面積の差によって生じ
る。上記連結具４７において、５は上記ピストンロンド
聞に螺着された連結体で、第３図に示すように連結部と
し−Ｃの球状凹部５６ａが形成されている。５６は連結
腕１４の先端部に形成された止着部としての止着長孔で
ある。The piston is slidably fitted into the cylinder body 49, and has a thin communication hole 52 that communicates the left and right cylinder chambers 4ga and 4ab. 53 is the rod hole 5
A piston rod is fitted into the 0FL, and its tip is connected to the piston 51. 54i, j: damping springs fitted in the cylinder chamber 49a on the side between the seal bodies. Compressed gas is sealed in the cylinder chambers 4ga and 49b, and the compressed gases F and E apply a thrust in the projecting direction to the histone rond product. This thrust is generated by the difference in pressure receiving areas on both sides of the piston M. In the connecting device 47, reference numeral 5 denotes a connecting body screwed between the piston ronds, and as shown in FIG. 3, a spherical recess 56a of -C is formed as a connecting portion. Reference numeral 56 denotes a fastening slot formed at the tip of the connecting arm 14 as a fastening part.

５７は上記球状凹部５ａを止着長孔間に対して回動自在
に止着する連結部材としての連結子で、一端の球壮部５
７ａ力ロｌＦ球状四部団ａに回動自在に耕土嵌合され、
他端の軸部５７ｂが止着長孔間に嵌挿されると共に鍔部
５７ｃとナラ）５８により連結腕１４に挟着されている
。１だ上記連結具侶において、（至）は上記シリンダ本
体４９の端部に固着された連結体で、第７２図に示すよ
うに連結部としての球状四部５９ａが形成されている。Reference numeral 57 denotes a connector serving as a connecting member for rotatably fixing the spherical recess 5a to the fixing elongated hole.
7a is rotatably fitted into the spherical four-part group a,
The shaft portion 57b at the other end is inserted between the fastening elongated holes and is clamped to the connecting arm 14 by the collar portion 57c and the lug 58. 1 is a connecting body fixed to the end of the cylinder body 49, and as shown in FIG. 72, four spherical parts 59a are formed as connecting parts.

ωは開口枠９の側枠９ｂに形成された止着部としての止
着孔である。ω is a fastening hole as a fastening portion formed in the side frame 9b of the opening frame 9.

団は上記球状凹部ｒａａを止着孔ωに対して回動自在に
止着する連結部材で、第７２図、第７３図に示すように
止着孔（１）に嵌合されてナツトｔｉｚによシ固着され
た止着ボルトωと、この止着ポル）６３のポル）ｉ６３
ａＪ−面に止着ポル）６３の軸線に対して偏心して螺着
された連結千倒とで構成され、この連結子〇の先端の球
状部６４Ｂが上記球状四部ωａに回動自在に抜止嵌合さ
れている。上記止着ボルト簡のボルト頭６３ａには自体
をスパナ等で回動させる為の回動操作部ωが形成されて
いる。上記連結子刺の上記止着ポル）６３の軸線に対す
る偏心量の大きさは、上記梯子用を収納させて連結腕１
４の先端部を土着孔（至）から最大限遠ざけた状態で、
止着ポル）６３０回動により上記球状凹部５９Ｂを第１
ｊ図の（Ｃ）に示すガススプリング荀の伸張力の作動域
と第１ｊ図の（ａ）に示す作動域外とに移動させ得る大
きさに設定されている。また上記ガススプリング４６に
おけるピストンロンド聞の推力の大きさは、第１乙図に
示すように梯子摺を最下降させた状態（梯子１８の下向
き傾斜角度θ≠６０度）ではガススゲリング４６による
梯子摺の枢着部を中心とする上向きの回転モーメン）Ｍ
が梯子ｍ等の自重による梯子兜の枢着部を中心とする下
向きの回転モーメン）ｍよυ小さくなシ、梯子１８の最
上昇状態（１子摺の下向き傾斜角度θ＝θ度）ではガス
スプリング４６による上向きの回転モーメン）Ｍが梯子
兇の自重による下向きの回転モーメントｍより大きくな
るように設定されている。第７６図に示す実施例では上
記ガススプリング菊による」二向きの回転モーメン）Ｍ
と自重による下向きの回転モーメン）ｍとの大小関係が
梯子Ｊ８の下向き傾斜角度θを約５０度にした時点で逆
転するようになっている。The group is a connecting member that rotatably fixes the spherical recess raa to the fixing hole ω, and as shown in FIGS. 72 and 73, it is fitted into the fixing hole (1) and attached to the nut tiz. The firmly fixed fastening bolt ω and this fastening pole)63) i63
The spherical part 64B at the tip of the connector 0 is rotatably fitted into the four spherical parts ωa with a non-removal lock. are combined. The bolt head 63a of the fastening bolt piece is formed with a turning operation part ω for turning it with a spanner or the like. The amount of eccentricity of the connecting arm 63 with respect to the axis of the connecting arm 63 is determined by
With the tip of 4 kept as far away from the native hole as possible,
The spherical recess 59B is rotated by the rotation of the fixing pole 630.
It is set to a size that allows the gas spring to be moved between the operating range of the extension force of the gas spring shown in FIG. 1J (C) and outside the operating range shown in FIG. In addition, the magnitude of the thrust between the piston ronds in the gas spring 46 is determined by the thrust force generated by the gas spring 46 when the ladder slide is lowered to its lowest position (the downward inclination angle θ≠60 degrees of the ladder 18), as shown in Figure 1. Upward rotational moment centered around the pivot point of the ladder slide) M
is the downward rotational moment about the pivot point of the ladder helmet due to the own weight of the ladder m, etc.). The upward rotational moment (M) caused by the spring 46 is set to be larger than the downward rotational moment (m) caused by the ladder's own weight. In the embodiment shown in FIG. 76, the rotational moment in two directions M
The magnitude relationship between the downward rotational moment (moment of downward rotation due to its own weight) m is reversed when the downward inclination angle θ of the ladder J8 is approximately 50 degrees.

次に、弱は梯子１８使用時に第１梯子要素１９を支持す
る支持装置で、第１７図〜第１９図に示すように構成さ
れ、梯子１８の両側に夫々配設されている。Next, support devices for supporting the first ladder element 19 when the ladder 18 is in use are constructed as shown in FIGS. 17 to 19, and are disposed on both sides of the ladder 18, respectively.

この支持装置φにおいて、Ｃは梯子取付板νの中間部上
面に固着された取付金具、６８はその取付金具ｑに下端
部が連結軸ωにより回動自在に連結された第１吊杆で、
これの上端部には自体の長手方向へ長い長孔刀が形成さ
れている。この長孔刀は第１吊杆鑓の回動面に対して直
交する方向に形成されている。ｎは開［■枠９の側枠９
ｂに固着された取付金具で、第７７図に示すように両端
部の取付部ｙｉａと中間部の張出連結部ｎｂとから構成
されている。との張出連結部７１ｂは取付部７１　ａを
側枠９ｂに取付けた状態においてその側枠９ｂとの間に
ばね収納空間πを形成するようになっている。In this support device φ, C is a mounting bracket fixed to the upper surface of the middle part of the ladder mounting plate ν, 68 is a first hanging rod whose lower end is rotatably connected to the mounting bracket q by a connecting shaft ω,
At its upper end, a long slotted sword is formed that extends in the longitudinal direction of the sword. This slotted sword is formed in a direction perpendicular to the rotating plane of the first hanging rod. n is open [■ side frame 9 of frame 9
As shown in FIG. 77, the mounting bracket is fixed to the mounting bracket b and is composed of mounting portions yia at both ends and an overhanging connecting portion nb at the middle portion. The overhanging connecting portion 71b forms a spring storage space π between the mounting portion 71a and the side frame 9b when the mounting portion 71a is attached to the side frame 9b.

ｎは上記張出連結部ｎｂに上端部が連結軸７４にまり回
動自在に連結された第２吊杆で、これの下端部には上記
長孔冗と重合可能なビン孔乃が形成されている。πは上
記ビン孔乃に嵌合された係合凸部としての連結ピンで、
上記長孔んに長手方向へ摺動自在に嵌め込まれている。n is a second hanging rod whose upper end is rotatably connected to the overhanging connecting portion nb by fitting it into the connecting shaft 74, and the lower end of this rod is formed with a bottle hole that can be overlapped with the long hole. ing. π is a connecting pin as an engaging protrusion fitted into the bottle hole,
It is fitted into the elongated hole so as to be slidable in the longitudinal direction.

なお、上記係合凸部は第ユ吊杆ｎに一体に設けても良い
。また上記長孔刀を第２吊杆ｎに係合凸部を第１吊杆艶
に設けても良い。ｎは上記連結軸７４に嵌合された捩り
ばねで、第７７図、第７ｆ図に示すように一端部が取付
金具ｎに他端部が第２吊杆ｎに引っ掛けられ、第ス吊杆
ｎを第７９図において時計回り方向へ付勢している。こ
の付勢力の大きさは、少なくとも第２吊杆ｒに梯子１８
等の自重が加わらない状態では第２吊杆ｎを付勢方向へ
回動させて第１吊杆銘と第２吊杆ｎを腰折れさせ得るよ
うに設定されている。上記取付金具ｎの取付位置は第２
図に示すように梯子■を最下降させた状態において第２
吊杆ｎの連結軸７４が第１吊杆田の連結軸ωよシも梯千
凪の自由端側に位置するように設定され、梯子ルと第１
吊杆鑓、第２吊杆ｎがＶ形状を成すようになっている。In addition, the said engaging convex part may be provided integrally with the 1st suspension rod n. Further, the long slotted sword may be provided with an engaging convex portion on the second hanging rod n on the first hanging rod. n is a torsion spring fitted to the connecting shaft 74, and as shown in FIGS. 77 and 7f, one end is hooked to the mounting bracket n and the other end is hooked to the second hanging rod n, and the second hanging rod In FIG. 79, n is biased clockwise. The magnitude of this biasing force is such that at least the second hanging rod r
In a state where no weight is applied, the second hanging rod n is rotated in the biasing direction and the first hanging rod n and the second hanging rod n are bent. The mounting position of the above mounting bracket n is the second
As shown in the figure, when the ladder ■ is at its lowest position,
The connecting shaft 74 of the hanging rod n is set so that the connecting shaft ω of the first hanging rod is also located on the free end side of the ladder, and the connecting shaft 74 of the hanging rod
The hanging rod and the second hanging rod n form a V shape.

また上記第１吊杆缶と第ユ吊杆ｎの長さは、梯子侶を最
上昇させたときには長孔旬に連結ピンんが嵌合した状態
で第１吊打田と竺つ！２灯７４１−Ａｔ諏悟ｈ１　保革
棋を鐙下賂愼せたときには連結ピンπが長孔刀の上端部
に当接すると共に第１吊杆６と第２吊杆ｒが一直線状に
なるように設定されている。Also, the length of the first hanging rod and the first hanging rod n are such that when the ladder member is raised to the highest level, the length of the first hanging rod is such that when the ladder member is raised to the highest level, the connecting pin is fitted into the long hole and the first hanging rod is connected to the first hanging rod. 2 lights 741-At Sugo h1 When the Hokakugi is placed under the stirrup, the connecting pin π will come into contact with the upper end of the slotted sword, and the first hanging rod 6 and the second hanging rod r will be in a straight line. It is set.

次に、７８は梯子凪の目出端側部分を開口枠９の端枠９
Ｃに掛は外し可能に掛止する為のロック装置で、第２０
図〜第２３図に示すように構成されている。このロック
装置列において、四は端枠９Ｃに止着された支持ブラケ
ットで、第２１図に示すように平板状の取付基板８０と
この取付基板８０に固着された一対の支持片８１　、８
１とで構成され、この取付基板８０が取付ボルト・ナツ
ト＆によシ端枠９Ｃに固定されている。８３は支持片８
１　、８１間に架設された掛止体で、略水平方向に支持
されている。泪は上記梯子取付板νの自由端部上面に止
着された装置本体で、底部が開放された箱形に構成され
、内部に収納空間部を形成している。この装置本体編は
上記掛止体＆と対応する位置に取付けられている。８６
は装置本体あの上部に形成された保合溝で、梯子取付板
νを収納位置に上昇させたとき上記掛止棒田が嵌−１９
込むようになっている。ｄは上記係合溝部の側方におい
て装置本体８４に支軸部を介して回動自作に枢着された
平板状の係止部材で、後述の操作レバーとの間に張設さ
れたばね田により第２θ図において時計回多方向へ付勢
され、装置本体胴に固着された第１ストツパー領に当接
されるようになっている。上記支軸８８ｆｄ梯子詔の収
納状態において横向き即ち掛止ｎ８３と平行になる向き
に設定されている。上記係止部相聞において、９１け上
記掛止枠部と当接可能に形成された当接部で、第２２図
に示すように第７ストツパー領に当接した状態において
梯子用の回動方向に対して交差する方向でかつ上記ばね
困により上向きに回動する方向へ突出され、梯子用の下
降状態においては上記係合溝部を横切るように位置され
ている。この当接部■は図面では係合部をも兼ねている
。替は梯子１Ｂを収納位置へ上昇させたときに掛止棒羽
を掛止し得るように形成された係止爪で、第２２図に示
すように梯子用の上向き回動方向へ突出され、梯子用の
下降状態においては上記係合溝部外に位置されている。Next, 78 is the end frame 9 of the opening frame 9.
C is a locking device for removably latching, and the 20th
It is constructed as shown in FIGS. In this locking device row, reference numeral 4 denotes a support bracket fixed to the end frame 9C, and as shown in FIG.
1, and this mounting board 80 is fixed to the end frame 9C with mounting bolts and nuts. 83 is the support piece 8
1 and 81, and is supported in a substantially horizontal direction. The device main body is fixed to the upper surface of the free end of the ladder mounting plate ν, and is formed into a box shape with an open bottom, forming a storage space inside. This main unit of the device is attached at a position corresponding to the above-mentioned hook &. 86
is a locking groove formed on the upper part of the device body, into which the above-mentioned latching rod fits when the ladder mounting plate ν is raised to the storage position.
It's getting crowded. Reference numeral d denotes a flat plate-shaped locking member that is rotatably attached to the main body 84 of the device via a support shaft on the side of the engagement groove, and is held by a spring tensioned between it and the operating lever described later. In FIG. 2θ, it is biased clockwise and comes into contact with a first stopper region fixed to the body of the device. When the support shaft 88fd ladder arm is stored, it is set horizontally, that is, parallel to the latch n83. In the above-mentioned locking part, the contact part is formed so as to be able to come into contact with the above-mentioned locking frame part 91, and when it is in contact with the seventh stopper area as shown in FIG. It protrudes in a direction that intersects with the above-mentioned spring and rotates upward due to the spring tension, and is positioned so as to cross the engagement groove in the lowered state for the ladder. In the drawing, this abutting portion (2) also serves as an engaging portion. The replacement is a locking pawl formed to be able to lock the locking rod wing when the ladder 1B is raised to the storage position, and is projected in the upward rotation direction of the ladder as shown in FIG. In the lowered state for a ladder, it is located outside the engagement groove.

田は上記当接部９１と係止爪隙間に形成されだ嵌合溝で
、第２θ図に示すように梯子用の収納状態において掛止
枠部が低寸シ込むようになっている。９４ははね掛部で
ある。A fitting groove is formed between the abutting portion 91 and the locking pawl, and the locking frame portion is adapted to be retracted by a small size in the stored state for the ladder, as shown in Fig. 2θ. 94 is a hanging part.

頒は上端部が上記装置本体洞に枢軸％によって回動自在
に枢着された操作レバーで、下端部は梯子取付板上に形
成された透孔ＷＫ貫挿されて梯子取付板丘の下方に突出
されている。この操作レバー郭は上記ばね掛部例との間
に張設された（社）ね田によって支軸部方向へ付勢され
、装置本体部に固着された第２ストソバ−円に当接され
るようになっている。この第ニス）　ツバ−Ｗの位置は
梯子】８の収納状態において操作レバー郭が第２ストッ
パー弱に当接すると、操作レバー係が第２θ図に示すよ
うに斜め下向きに傾斜されるように設定されている。上
記操作レバ〜％において、川は回動規制部で、上記係止
部材部が第７ストツパー美に当接した状態において当接
部（係合部）９１の先端面に当接するように形成されて
いる。この回動規制部訪は操作レバー郭の付勢方向への
力によって係止部材部に戻シ回動方向の回転モーメント
を付与するような位置に形成されている。１０１は係止
段部で、梯子１８の収納状態において掛止棒幻により回
動された係止部材部の当接部（係合部）９１の先端部に
係合して係止部相ａの戻り回動を係止するように形成さ
れている。この係止段部１０１は操作１／バー郭が第２
ストツパー９に当接した斜め下向き状態において当接部
用の先端部を充分に係止し、操作レバー郭がその斜め下
向き状態から下向きに適当量（図面では真下に向くまで
の量）回動されると当第２３図に示すように操作棒１０
１の先端の釣部１０５を引っ掛けて操作し得るようにな
っている。１０３は上記操作レバー％の付勢方向（支軸
部方向）とは反対方向への回動を規制する第３ストツパ
ーで、図面では透孔ｑの孔縁によって構成されている。The lever is an operating lever whose upper end is rotatably attached to the device body cavity by a pivot, and whose lower end is inserted through the through hole WK formed on the ladder mounting plate and extends below the ladder mounting plate hill. It is prominent. This operating lever enclosure is biased toward the spindle by the tensioned part between the above-mentioned spring hanging part, and comes into contact with the second strike bar circle fixed to the main body of the device. It looks like this. The position of the flange W is set so that when the operating lever bracket comes into contact with the second stopper in the stowed state of the ladder] 8, the operating lever part is tilted diagonally downward as shown in Fig. 2θ. has been done. In the above operating lever ~%, the river is a rotation regulating portion, and is formed so as to abut on the tip end surface of the abutting portion (engaging portion) 91 when the above-mentioned locking member portion abuts on the seventh stopper. ing. The rotation restricting portion is formed at a position such that a rotational moment in the return rotation direction is applied to the locking member portion by a force in the biasing direction of the operating lever shell. Reference numeral 101 denotes a locking step portion which engages with the tip of the abutting portion (engaging portion) 91 of the locking member portion rotated by the locking rod when the ladder 18 is in the stored state. It is formed to lock the return rotation of. This locking stepped portion 101
In the diagonally downward state in contact with the stopper 9, the tip of the abutting portion is sufficiently locked, and the operation lever enclosure is rotated an appropriate amount downward from the diagonally downward state (the amount until it points straight down in the drawing). Then, as shown in Fig. 23, the operating rod 10
It can be operated by hooking the fishing part 105 at the tip of the handle. Reference numeral 103 designates a third stopper for restricting the rotation of the operating lever % in a direction opposite to the biasing direction (direction of the support shaft), and is constituted by the edge of the through hole q in the drawing.

この第３ストツパー１ωは係止段部１０１から当接部９
１を外ず為の操作レバー％の回動を許す位置でかつ回動
規制部別が当接部９】に当接した状態において操作レバ
ー９５の支軸路側とは反対側に近接づる位置に配設され
、操作レバー妬の回動を略完全に規制するようになって
いる。This third stopper 1ω extends from the locking step portion 101 to the abutment portion 9.
1, in a position that allows rotation of the operating lever % and in a state where the rotation regulating part is in contact with the abutment part 9], the operating lever 95 is in a position close to the side opposite to the spindle road side. The rotation of the operating lever is almost completely restricted.

上記構成のものにあっては、梯子用を必要としない場合
には梯子用の第１、第２、第３梯子要素１９　、２０　
、２１が第７図に示すように第１、第２連結金具η、２
３で折畳まれた状態で梯子取付板しか第６図に示す最上
昇位置即ち収納位置に保持される。In the case of the above structure, the first, second and third ladder elements 19, 20 for the ladder are used when the ladder is not required.
, 21 are the first and second connecting fittings η, 2 as shown in FIG.
3, the ladder mounting plate is held in the highest or stowed position shown in FIG.

この状態では、梯子取付板しは天井２の開口部１１にき
っちり嵌１シ込んで開口部１１を塞ぐと共に梯子用を天
井空間５に隠し、居住空間４から見えないようになる。In this state, the ladder mounting plate is tightly fitted into the opening 11 of the ceiling 2 to close the opening 11 and hide the ladder in the ceiling space 5 so that it cannot be seen from the living space 4.

また、この状態ではガススプリング栃の伸張力による梯
子１８の上向き方向への回転モーメン）Ｍが第７６図に
示すように梯子】８等の自重による梯子】８の下向き方
向への回転モーメントｍよシもはるかに大きくなるので
、梯子】８の自由端部はこのガススプリング４６の伸張
力によって持上げられ、収納位置に確実に保持される。In addition, in this state, the upward rotational moment (m) of the ladder 18 due to the stretching force of the gas spring 18 is equal to the downward rotational moment (m) of the ladder 18 due to its own weight, as shown in FIG. Since the ladder 8 is also much larger, the free end of the ladder 8 is lifted by the tension of this gas spring 46 and held securely in the stowed position.

従って、ロック装置πが何らかの原因例えばばね〜の破
損で故障して係止爪曽による掛止棒８の係止が外れた場
合でも、梯子１８が収納位置から落下するという事故を
防ぐことができ、天井２部分に収納する収納梯子の安全
性を高めることができる。また−Ｆ記のように梯子用が
収納されているとき、ロック装置７８においては第２／
図、第２２図に示すように掛止棒間が係合溝（資）と嵌
合溝部に嵌まり込んだ状態で係止部拐ηの戻υ回動が操
作ｌ／バー％の係止段部１０１によって阻止されている
ので、梯子】８の自由端部は収納位置に確実に掛止めさ
れ、これによシ上記ガススプリング荀が何らかの原因例
えばガス洩れ等によって故障した場合でも梯子１８が収
納位置から落下する事故を防止できる。また上記梯子１
８の収納状態において、支持装置間の第１吊杆関と第２
吊杆７３は第６図に示すように長孔冗と連結ビンんを介
して腰折れ状態となって開口部１】内に収納されている
。Therefore, even if the locking device π breaks down due to some reason, such as damage to the spring, and the locking bar 8 is released from the locking claw, an accident in which the ladder 18 falls from the storage position can be prevented. , the safety of the storage ladder stored in the two parts of the ceiling can be increased. In addition, when the ladder is stored as shown in -F, the locking device 78
As shown in Fig. 22, when the locking bar is fitted into the engagement groove (part) and the fitting groove part, the return υ rotation of the locking part η will lock the operating l/bar%. Being blocked by the step 101, the free end of the ladder 8 is securely latched in the stowed position, so that even if the gas spring shank fails for some reason, for example due to a gas leak, the ladder 18 will remain in place. Accidents of falling from the storage position can be prevented. Also, the above ladder 1
8, in the stored state, the first hanging rod and the second
As shown in FIG. 6, the hanging rod 73 is housed in the opening 1 in a bent state through a long hole and a connecting bottle.

次に、梯子迅を使用したい場合には、先ず第２３図の（
〜に示すように操作棒１０１の鉤部１０５を斜め下向き
状態の操作レバー係の引掛孔１０２に引っ掛け、その後
その操作棒血を引っ張って操作レバー郭をばね圏の力に
抗して回動させ、第２３図の０３）に示すように係止段
部１０１と当接部９１との係合を外す。この場合、斜め
下向き状態に傾斜している操作レバー９５を少なくとも
真下に向く位置まで回動させることによって上記係止段
部１０１と当接部９１の係合が外れるようになっている
ので、操作レバー係を操作する者は単に片手で操作棒１
（）ｌの鉤部１ａＤを引掛孔１０２に引っｍりて下方に
引くだけで係止段部１０１と当接部９】の係合を外ずこ
とができる。上記のように係止段部１０１と当接部用と
の係合が外れた後操作棒１（Ｍを更に下方に引き下げる
と、第７２図の（Ｃ）に示すように係止部材群がばね田
の力によって回動されて第１ストツバ−領に当接され、
同時に当接部９１は掛止棒間を嵌合溝部から押出すと共
に梯子用の自由端部を僅かに押下げる。なお、ガススプ
リング４６による梯子用の上向きの回転モーメン）Ｍが
比較的小さいときには係止段部１０１七当接部９１の係
合が外れると係止部材群は直ちにばね襲の力によシ戻シ
回動される。次に上記操作棒期を下方に引っ張って梯子
取付４人の自由端を第２図に示すように下降させる。こ
のように梯子取付板１２を下降させると、支持装置ωの
第１吊杆閏と第２吊杆７３は腰折れ角度が小さくなって
引き伸ばされる。Next, if you want to use the ladder, first of all (see Figure 23).
As shown in ~, the hook portion 105 of the operating rod 101 is hooked into the hook hole 102 of the operating lever in the diagonally downward position, and then the operating lever is pulled to rotate the operating lever against the force of the spring ring. , as shown in 03) in FIG. 23, the engagement between the locking step portion 101 and the contact portion 91 is released. In this case, the engagement between the locking step 101 and the abutting portion 91 is disengaged by rotating the operating lever 95, which is tilted diagonally downward, at least to a position facing straight down. The person operating the lever simply uses the operating rod 1 with one hand.
The engagement between the locking stepped portion 101 and the abutting portion 9 can be disengaged by simply pulling the hook portion 1aD of ()l into the hooking hole 102 and pulling it downward. After the engagement between the locking stepped portion 101 and the contact portion is disengaged as described above, when the operating rod 1 (M) is further pulled down, the locking member group is removed as shown in FIG. 72(C). Rotated by the force of the spring field and brought into contact with the first stop bar area,
At the same time, the abutment part 91 pushes out the space between the latching bars from the fitting groove part and slightly pushes down the free end part for the ladder. Note that when the upward rotational moment (M) for the ladder due to the gas spring 46 is relatively small, when the locking step portion 1017 and the contact portion 91 are disengaged, the locking member group is immediately returned by the force of the spring force. It is rotated. Next, pull the operating rod downward to lower the free ends of the four ladder attachers as shown in FIG. When the ladder mounting plate 12 is lowered in this manner, the bending angle of the first hanging lever and the second hanging lever 73 of the support device ω becomes smaller and they are stretched.

そして梯子取付板［を下向き角度θが略乙Ｏ度になる位
置まで下降させると、第２図に示すように支持装置船の
連結ビン７６が長孔ｍの上端に当接すると共に第１ｈ′
１杆団と第ユ吊杆ｎが一直線状にり１き伸ばされて梯子
取付４人のそれ以上の下向き回動を阻止する。まだ上記
のように梯子取付４人・控を下降させていくと、第７乙
図に示すようにガススプリング４６による梯子兜の上向
きの回転モーメントΔ１が急激に小さくなるのに対して
梯子１８等の自重による下向きの回転モーメントｍＦｉ
ゆるーやかに小さくなり、梯子取付板］２の下向き傾斜
角度θが略ｊθ度になった時点で両モーメン）Ｍ、ｍの
大小関係が逆転し、梯子取付板】２の下向き傾斜角度θ
が略６θ度になった時点では梯子１８等の自重による梯
子］８の下向きの回転モーメン）ｍがガススプリング４
６による梯子用の上向きの回転モーメントＭより大きく
なる。従って、梯子取付板１２を第２図に示すように最
下降させるだけで梯子１８はその最下降位置に確実に保
持される。また上記のように操作棒血を下向きに引っ張
って梯子１８を下降させる場合、第２２図、第２３図の
０に示すように係止部材群がばね回の力で戻り回動され
、この状態では操作レバー郭の回動が係止部材群の当接
部９１と第３ストツパー１０３によって阻止されている
ので、操作レバー製が操作中に回動するのを防止でき、
操作棒１０Ｉの鉤部１０５が引掛孔把から外れるのを防
止できる。次に、第７図に示す折畳み状態の梯子１８を
第１図に示すように一直線状に引き伸ばす。この場合、
梯子１８の第１連結金具ηにおいては、第１梯子要素】
９に対して第２梯子要素加を引き伸ばすと、第９図、第
１Ｏ図に示すように掛止ビン讃が掛止片部の案内斜面鉛
に当接してこの掛止片部をばね蕊に抗して回動させ、そ
の後掛止片部の係合溝墓に係合して一体的に結合される
。従って第１連結金具η部分に下向きの大きな荷重が加
わっても第１Ｏ図に示すように第１梯子要素１９と第２
梯子要素加との突き合わせ状態を確実に維持できる。ま
た第２連結金具幻においては連結ヒ゛ン招が梯子詔の下
面部分に位置されているので、この第２連結金具田部分
に下向きの大きな荷重が加わっても第２梯子要素加と第
３梯子要素２１の突き合わせ状態を確実に維持できる。Then, when the ladder mounting plate [is lowered to a position where the downward angle θ is approximately O degrees, the connecting bin 76 of the support device comes into contact with the upper end of the long hole m and the first h'
The first group of rods and the third hanging rod are extended in a straight line to prevent further downward rotation of the four people on the ladder. When the four people installing the ladder and the support are lowered as described above, the upward rotational moment Δ1 of the ladder helmet due to the gas spring 46 decreases rapidly, as shown in Figure 7 O, while the ladder 18 etc. The downward rotational moment mFi due to its own weight
When the downward inclination angle θ of the ladder mounting plate ] 2 reaches approximately jθ degrees, the magnitude relationship of both moments M and m is reversed, and the downward inclination angle θ of the ladder mounting plate ] 2 is gradually reduced.
When the angle reaches approximately 6θ degrees, the downward rotational moment (m) of the ladder 18 due to its own weight is the gas spring 4.
6 is larger than the upward rotational moment M for the ladder. Therefore, simply by lowering the ladder mounting plate 12 to its lowest position as shown in FIG. 2, the ladder 18 is reliably held at its lowest position. Further, when the ladder 18 is lowered by pulling the operating rod downward as described above, the locking member group is rotated back by the force of the spring as shown at 0 in FIGS. 22 and 23, and this state Since rotation of the operating lever frame is prevented by the contact portion 91 of the locking member group and the third stopper 103, it is possible to prevent the operating lever from rotating during operation.
The hook portion 105 of the operating rod 10I can be prevented from coming off the hook hole grip. Next, the folded ladder 18 shown in FIG. 7 is stretched out into a straight line as shown in FIG. in this case,
In the first connecting fitting η of the ladder 18, the first ladder element]
9, when the second ladder element is extended, the latching pin holder contacts the guide slope lead of the latching piece, as shown in Figs. It is rotated against the resistance, and then engaged with the engagement groove groove of the latching piece part to be integrally coupled. Therefore, even if a large downward load is applied to the first connecting fitting η portion, the first ladder element 19 and the second
The butt state with the ladder element addition can be maintained reliably. In addition, in the case of the second connecting metal fitting, since the connecting hinge is located on the lower surface of the ladder, even if a large downward load is applied to the second connecting metal fitting part, the second ladder element and the third ladder element cannot be connected. 21 can be reliably maintained.

−り記のようにして梯子１８を引き伸ばすと、第１図に
示すように第３梯子要素２１の下端部が床面１に当接し
、この状態で梯子１８を使用する。この場合、上記ガス
スプリング４６は第２図に示すように天井２の開口部１
１内でかつ梯子１８とは対向しない位置に配設されてい
るので、人が梯子］８を登り下りするときにガススプリ
ング４６が邪魔になるようなことは々い。- When the ladder 18 is extended as described above, the lower end of the third ladder element 21 comes into contact with the floor 1 as shown in FIG. 1, and the ladder 18 is used in this state. In this case, the gas spring 46 is connected to the opening 1 of the ceiling 2 as shown in FIG.
1 and not facing the ladder 18, the gas spring 46 often gets in the way when a person climbs up or down the ladder 18.

棟だ梯子１８を登るとき梯子摺には下向きの大きな荷重
が加わるが、第２図に示すように梯子取付板玖の中間部
が支持装置ｊ’＋’　６Ｇにより支持されているので、
上記荷重をその支持装置ωと蝶番】３によっ−Ｃ２分し
て支持することができ、これによシ大きな荷重を強度上
安全に支持できる。欧に、梯子１８を再び収納したい場
合には、梯子１８における第１連結金具ｎの掛止片部を
ばねあに抗して回動させて係合溝加から掛止ピン努を外
した後第１、Ｋｒ、２、第３梯子要素１９　、２０　、
２］を折畳んで梯子取付板１２上に重合させる。その後
、梯子取付板上の自由端部を持上げる。この場合、支持
装置ωにおいては梯子取付板［の持−Ｉ−、けによって
連結ビン７６が長孔冗内を相対的に移動することによっ
て上記梯子取付板球の持上げを許すと共に第２吊杆ｎに
梯子１８等の荷重が加わらなくなり、これによりν２吊
杆ｎが捩シばねｎのばね力によって第７９図に示すよう
に時計回シ方向へ回動され、第１吊杆鑓と第２吊杆７３
は連結ビン７６を支点にして折曲けられる。When climbing the ridge ladder 18, a large downward load is applied to the ladder slide, but as shown in Fig. 2, the middle part of the ladder mounting board is supported by the support device j'+' 6G, so
The above-mentioned load can be supported by the supporting device ω and the hinge 3 by -C2, and thereby a large load can be safely supported in terms of strength. If you want to store the ladder 18 again in Europe, rotate the latching piece of the first connecting fitting n on the ladder 18 against the spring and remove the latching pin from the engagement groove. 1st, Kr, 2, 3rd ladder elements 19, 20,
2] is folded and superimposed on the ladder mounting plate 12. Then lift the free end on the ladder mounting plate. In this case, in the support device ω, the connecting pin 76 is relatively moved within the long hole by the support of the ladder mounting plate [I-, I-], thereby allowing the ladder mounting plate ball to be lifted, and the second hanging rod The load of the ladder 18, etc. is no longer applied to n, and as a result, the ν2 hanging rod n is rotated clockwise by the spring force of the torsion spring n, as shown in FIG. Hanging rod 73
can be bent using the connecting bin 76 as a fulcrum.

従って、その後引き続いて梯子取付板Ｖを持上げること
ができる。その後梯子取付＆枝をその下向き傾斜角度θ
が約５θ度より小さくなる位置まで上向き回動させると
、第１乙図から明らかなようにガススプリング荀による
梯子１８の上向きの回転モーメントＭが梯子１８等の自
重による梯子迅の下向きの回転モーメン）ｍより大きく
なるので、梯子取付板丘はその後ガススプリング４６の
伸張力によって自動的に上向き回動され、天井２の開口
部１１内に収納される。また、上記梯子取付板】２の上
向き回動によってロック装置πの係合溝（資）に掛止ｎ
８３が嵌まり込み、当接部用が掛止棒間に当接すると共
にばね〜に抗して回動される。この当接部９１の回動は
係合溝部の底部が掛止棒羽に当接することによって停止
され、この時点では第２０図に示すように掛止棒間が嵌
合溝郭に嵌合して係止爪曽によって係止されると共に係
止段部１０１が当接部供に係合して係止部材群の戻り回
動が阻止される。Therefore, the ladder mounting plate V can be subsequently lifted up. Then attach the ladder & set the branch at its downward inclination angle θ
When the ladder 18 is rotated upward to a position where it is smaller than about 5θ degrees, as is clear from Figure 1, the upward rotational moment M of the ladder 18 due to the gas spring 18 becomes the downward rotational moment of the ladder 18 due to its own weight. )m, the ladder mounting plate hill is then automatically rotated upward by the tension force of the gas spring 46 and is housed in the opening 11 of the ceiling 2. In addition, by upward rotation of the above-mentioned ladder mounting plate] 2, it is latched into the engagement groove (capital) of the locking device π.
83 is fitted, and the abutting portion abuts between the locking bars and is rotated against the spring. The rotation of the contact portion 91 is stopped when the bottom of the engagement groove comes into contact with the latching bar wing, and at this point, the latching bar is fitted into the fitting groove as shown in FIG. At the same time, the locking step portion 101 engages with the abutting portion to prevent the locking member group from rotating back.

従って、梯子取付板りや梯子１８は開口部１】内に完全
に収納され、この収納位置に確実に掛止保持される。な
お、ガススプリング菊の伸張力が比較的小さい場合には
、梯子取付板りの上向き回動は当接部９１が掛止枠部に
当接して停止され、その後の梯子取付板辻の上向き回動
は操作棒崩の釣部抵を引掛孔１０２に引っ掛けて操作レ
バー郭を押上げることによって行う。この場合操作レバ
ー郭は上記したように当接部９１と第３ストツパーＩＱ
３によって回動が規制されているので、操作レバー郭の
押上げによって梯子取付板校を容易に上向き回動させる
ことができる。Therefore, the ladder mounting plate and the ladder 18 are completely accommodated within the opening 1 and are securely latched and held in this accommodated position. Note that when the stretching force of the gas spring chrysanthemum is relatively small, the upward rotation of the ladder mounting plate is stopped when the abutment part 91 contacts the latching frame, and the subsequent upward rotation of the ladder mounting plate is stopped. Movement is performed by hooking the fishing part of the operating lever into the hooking hole 102 and pushing up the operating lever shell. In this case, the operating lever section is connected to the contact portion 91 and the third stopper IQ as described above.
Since rotation is restricted by 3, the ladder mounting plate can be easily rotated upward by pushing up the operating lever shell.

次に上記圧縮ばね装置６を組付ける場合について説明す
る。先ず、第６図ｒ（示すように梯子１８を収納位置に
収納して連結腕１４の先端部を側枠９ｂの止着孔艶から
最大限遠ざかった位置に移動させる。Next, the case of assembling the compression spring device 6 will be explained. First, as shown in FIG. 6r, the ladder 18 is stored in the storage position and the tip of the connecting arm 14 is moved to a position as far away from the fastening hole of the side frame 9b as possible.

この状態で完全に伸びきっているガススプリング４６の
一端部にｉける連結具４７の連結子Ｊを第３図に示すよ
うに連結腕１４の止着長孔間に嵌挿させると共にナツト
団で固定する。またガススプリング菊の他端部における
連結具鵡の止着ポル）６３を止着孔のに嵌挿させてナツ
ト位を螺合させる。この場合、連結具部においては、連
結部としての球状凹部５１］ａを止着ポル）６３の中心
に対して連結腕１４側とは反対側に位置させると、第１
ｊ図（ａ）に示すように球状凹部５９ａがガススプリン
グ４６の減衰域（不作動域も含む）に位置されるので、
ガススプリング荀に力をほとんど或いは全く及ぼすこと
なく止着ボルト８をに着花ωに容易に嵌合させることが
できる。その後止着ポル）６３の回動操作部６にスパナ
等を嵌合させ、第１ｊ図（ｂ）　、　（ｅ）に示すよう
に上記球状凹部５９Ｂが止着ボルトωの中心に対して連
結腕１４側に位置するように止着ポル）６３を回動させ
、球状四部５９ａをガススプリング荀の伸張力の作動域
に移動させる。との場合ガススプリング菊の大きな伸張
力が止着ボルト環に加わるが、止着ポル）ｆｌＧをスパ
ナ等で回動させる為比較的小さな力で止着ポル）６３を
回動させることができる。In this state, the connector J of the connector 47 attached to one end of the gas spring 46, which is fully extended, is inserted into the long hole of the connecting arm 14 as shown in FIG. Fix it. In addition, the fixing hole 63 of the connecting device at the other end of the gas spring is inserted into the fixing hole, and the nut is screwed together. In this case, in the connecting part, if the spherical recess 51]a as the connecting part is located on the opposite side of the connecting arm 14 with respect to the center of the fixing pole 63, the first
Since the spherical recess 59a is located in the damping region (including the non-operating region) of the gas spring 46, as shown in FIG.
The fixing bolt 8 can be easily fitted into the bolt ω with little or no force exerted on the gas spring shank. After that, a spanner or the like is fitted into the rotating operation part 6 of the fixing bolt 63, and the spherical recess 59B is aligned with the center of the fixing bolt ω as shown in FIGS. The fixing pole 63 is rotated so as to be located on the 14 side, and the four spherical parts 59a are moved to the operating range of the extension force of the gas spring shaft. In this case, a large tensile force of the gas spring chrysanthemum is applied to the retaining bolt ring, but since the retaining pole flG is rotated with a spanner or the like, the retaining pole 63 can be rotated with a relatively small force.

その後上記止着ポル）６３に螺合したナンドａを締付け
て止着ポル）６３の回動を固定し、以上によシ圧縮ばね
装置４５の組付が完了する。第２ψ図、第２ｊ図は圧縮
ばねの異なる例を示すもので、上記実施例におけるガス
スプリング４６の減衰ばね馴を省略し、ガススプリング
４６　ｅの減衰域をなくしたものである。Thereafter, the NAND a screwed onto the above-mentioned fixing pole 63 is tightened to fix the rotation of the fixing pole 63, and thus the assembly of the compression spring device 45 is completed. Figures 2ψ and 2j show different examples of compression springs, in which the damping spring adjustment of the gas spring 46 in the above embodiment is omitted, and the damping region of the gas spring 46e is eliminated.

なお、機能上前図のものと同−又は均等構成と考えられ
る部分には、前図と同一の符号にアルファベットのｅを
付して重複する説明を省略した。（壕だ次図のものにお
いても同様の考えでアルファベットのｆ、ｇを付して重
複する説明を省略する。）第２６図は圧縮ばね装置の連
結具の異なる例を示すもので、取付板１０６の止着部と
しての孔（図示省略）に回動腕１０７が回動自在に枢着
され、との回動腕萌には枢着部を中心とする回動操作部
としての六角頭１０８が一体に固着され、しかもその先
端部には円弧状の長孔期が形成されている。この長孔１
０９には上記取付板１０３に螺合された回定ポル）　１
］０７５Ｅ嵌挿され、この固定ボルト１１０によって回
動腕１０７の回動を固定し得るように寿っている。捷だ
上記回動腕１０７にはガススプリング４６ｆの一端部に
設けた連結体５９ｆが連結されている。上記回動腕１ｏ
′７と固定ポル）１１０け連結部材６１　ｆを構成し、
回動腕ＩＣ＋７の回動によって連結体間「をガススプリ
ング４６ｆの作動域と作動域ダ■とに移動させ得るよう
になっている。It should be noted that parts that are functionally the same or equivalent to those in the previous figure are given the same reference numerals as in the previous figure with the letter e, and redundant explanations are omitted. (The same idea applies to the trenches shown in the figure below, and the letters f and g are added to omit duplicate explanations.) Fig. 26 shows a different example of a connection tool for a compression spring device, and shows a mounting plate. A rotating arm 107 is rotatably attached to a hole (not shown) serving as a fixing portion of 106, and a hexagonal head 108 serving as a rotating operation portion centered on the pivoting portion is attached to the rotating arm 106. are fixed together, and an arcuate long hole is formed at the tip. This long hole 1
09 is a rotating pole screwed onto the mounting plate 103) 1
] 075E, and the fixing bolt 110 is used to fix the rotation of the rotating arm 107. A connecting body 59f provided at one end of the gas spring 46f is connected to the rotating arm 107. The above rotating arm 1o
'7 and fixed pole) constitutes 110 connecting members 61 f,
By rotating the rotating arm IC+7, the connecting body can be moved between the operating range of the gas spring 46f and the operating range D.

第ユ゛７図、第、２ｊ図は圧縮ばね装置の別の異なる実
施例を示すもので、側枠９ｂｇに止着部としての止着体
１１１がナツト１１２により固定され、この止着体１１
１に連結ねじ体１１３が連結ボルト１１４により連結さ
れている。この連結ねじ体１１３には雌ねじ孔１１３ａ
が形成され、この雌ねじ孔１１３ａにピストンロッドｍ
ｇの先端部に形成された連結部としての雄ねじ部１１５
が螺合されている。上記ピストンロッド５３ｇは回転自
在に構成され、このピストンロッド５３ｇに回動操作部
としてのスパナ掛部１１６が形成されている。十記雄ね
じ部１１５にはロックナラ）］１７が螺合され、このロ
ックナツト１１７と連結ねじ体１１３とで連結部材６１
ｇを構成している。7, 2j show another different embodiment of the compression spring device, in which a fastening body 111 as a fastening part is fixed to the side frame 9bg by a nut 112, and this fastening body 11
A connecting screw body 113 is connected to 1 by a connecting bolt 114. This connecting screw body 113 has a female screw hole 113a.
is formed, and a piston rod m is inserted into this female threaded hole 113a.
A male threaded portion 115 as a connecting portion formed at the tip of g.
are screwed together. The piston rod 53g is configured to be rotatable, and a spanner hook 116 serving as a rotation operation portion is formed on the piston rod 53g. A lock nut 117 is screwed into the male threaded portion 115, and the lock nut 117 and the connecting screw body 113 connect the connecting member 61.
g.

この実施例においては、圧縮ばね４６　ｇを組付ける場
合、先ず第２７図に示すように雄ねじ部ｎ５が雌ねじ孔
】１３ａに大きく入シ込んだ状態にして圧縮ばね４６　
ｇの一端部を移動部材（又は基準部材）に連結し、また
圧縮ばね４Ｇｇの他端部の連結ねじ体】３３を基準部材
（又は移動部材）の止着体１】１に連結ボルト１１４で
連結する。この場合、圧縮はね４６　ｇに圧縮力を加え
る必要がないように上記雌ねじ孔１１３ａと雄ねじ部１
陽の螺合量を調節する。その後スパナ掛部１１６にスパ
ナを掛けてピストンロッド５３ｇを回動させて第２ｇ図
に示すように雄ねじ部１］５を雌ねじ孔】１３ａから抜
は出る方向へ相対移動させ、これにより移動部材と基準
部材に圧縮ばね４６　ｇのばね力が作用するようにする
。In this embodiment, when assembling the compression spring 46g, first, as shown in FIG.
Connect one end of the compression spring 4Gg to the movable member (or reference member), and connect the connecting screw body 33 at the other end of the compression spring 4Gg to the fastening body 1]1 of the reference member (or the movable member) with a connecting bolt 114. Link. In this case, the female screw hole 113a and the male screw portion 1 are connected so that there is no need to apply a compressive force to the compression spring 46g.
Adjust the amount of positive screw engagement. Thereafter, a wrench is applied to the spanner hook part 116 to rotate the piston rod 53g to relatively move the male threaded part 1]5 in the direction of exit from the female threaded hole 13a as shown in Fig. 2g. The spring force of the compression spring 46g is applied to the reference member.

以上のように本発明にあっては、天井２の開口部１１に
梯子１８を配設し、その梯子１８の一端部は開口部１１
の一方の縁部に枢着し、その梯子路の他端部は開口部１
１の他方の縁部にロック装置用により掛は外し可能に描
成しであるので、梯子１８を使用しないときにｄ、梯子
１８を開口部１１の縁部に掛止しておくことによってそ
の梯子正を天井２の開口部Ｈに収納させておくことがで
き、居住空間４を梯子正に邪魔されることなく有効利用
でき、まだ梯子正を用いて天井空間５に上がシたいとき
には、梯子路を下降させて傾斜させることによってその
梯子正を用いて天井空間５に楽に上がることができる。As described above, in the present invention, the ladder 18 is disposed in the opening 11 of the ceiling 2, and one end of the ladder 18 is connected to the opening 11.
is pivoted to one edge of the ladder, and the other end of the ladder path is connected to the opening 1.
1 has a removable hook for the locking device on the other edge of the opening 11, so when the ladder 18 is not in use, the ladder 18 can be hooked to the edge of the opening 11. The ladder main can be stored in the opening H of the ceiling 2, and the living space 4 can be used effectively without being obstructed by the ladder main, and when you still want to use the ladder main to go up to the ceiling space 5, By lowering and tilting the ladder path, it is possible to easily ascend to the ceiling space 5 using the ladder path.

まだ上記ロック装置用は、開口部１１の他方の縁部に横
向きに止着された掛止ｎ８３と、上記梯子路の他端部に
上記掛止棒間と略平行な支軸路を介して回動可能に枢着
され、かつその支軸路を中心にして一方向へ回動するよ
うにばね部で付勢されだ係止部材聞と、上記梯子正の他
端部に自体の上端部が上記掛止棒間と略平行な枢軸製を
介して回動可能に枢着され、かつ自体の下端部が上記係
止部材群方向へ回動するようにばね部で付勢された操作
レバー％を具備し、上記係止部側ηの周辺部には、上記
梯子】８を収納位置に上昇させたとき」二重掛止棒間ン
こ当接して下方へ回動されるように突出された当接部９
１と、梯子１８を収納位置に上昇させたどき上記当接部
９１が掛止枠部で回動されることによりその掛止休部の
上側を係止するように突出されだ係止爪ｎを備え、」二
重操作レバー％には梯子１８を収納位置に上昇させたと
き上記掛止休部によシ回動された係止部打粉の保合部９
１に係合して係止部側ηの戻シ回動を係止するように形
成啓れた係止段部１０］を備えているので、梯子１８を
収納位置に収納させておく場合、梯子Ｊ８を収納位Ｉと
１Ｆｔで上昇させることによっ−Ｃ梯子１８に備えた係
止部落ａの係止爪敞が開口部１１の縁部に備えた掛止棒
羽を係止した状態に維持させることができ、これにより
梯子］８を収納位置に確実に位置固定させておくことが
できて安全でちる。Still, the locking device has a latch n83 fixed horizontally to the other edge of the opening 11, and a support shaft path substantially parallel to the latch bars at the other end of the ladder path. A locking member pivotably mounted and urged by a spring so as to rotate in one direction about its support shaft, and an upper end of the ladder itself at the other end of the ladder. an operating lever rotatably mounted via a pivot shaft substantially parallel to the locking bars, and biased by a spring so that its lower end rotates in the direction of the locking member group; At the periphery of the locking part side η, there is a protrusion so that when the ladder 8 is raised to the storage position, the double locking bar contacts and rotates downward. Contact part 9
1, when the ladder 18 is raised to the stowed position, the abutment part 91 is rotated by the latching frame part, so that the latching claw n protrudes to latching the upper side of the latching rest part. In addition, the double operating lever has a locking part 9 which is rotated by the above-mentioned locking part when the ladder 18 is raised to the storage position.
1 and is formed to lock the return rotation of the locking part side η, so when the ladder 18 is stored in the storage position, By raising the ladder J8 to the stowed position I and 1 Ft, the locking pawl of the locking section a provided on the -C ladder 18 locks the locking bar provided at the edge of the opening 11. This allows the ladder] 8 to be reliably fixed in the storage position, making it safe.

址だ上記のように係止部打所の係止爪叡が掛止枠部を係
止して梯子用を収納位置に確実に維持させ得るようにし
たものであっても、上記操作レバー郭には、更に梯子１
８の下面側に露出され、梯子１８の収納状態において居
住空間４側から操作レバー係を回動操作し得るように形
成された操作部１０２を備え、その操作部進の位置は上
記係止段部１０１が係合部用に係合した状態で操作レバ
ー製の枢軸郭よりも係止部材ｄ側に偏位し、かつ自体が
操作レバー％の枢軸美の垂直下方位置に向けて移動され
ると上記係止段部皿と係合部９】の係合が外れるように
設定しであるので、梯子用を使用する為に梯子１８の自
由端部を収納位置から下降させたい場合には、操作レバ
ー係の操作部進を下方から引き下げることでもってその
操作部収を操作レバー頒の枢軸製の垂直下方位置に向け
て移動させて係止段部１０１と係合部９１の係合を外す
ことができ、これにより上記操作レバー係の引き下げを
続けることによシ梯子那の自由端部を下降させることが
でき、操作レバー妬の引き下は操作だけで梯子１８を簡
単に下降させ得る効果がある。However, even if the locking pawl of the locking part locks the locking frame part as described above to ensure that the ladder is maintained in the storage position, the above-mentioned operating lever structure In addition, there is a ladder 1
The operating part 102 is exposed on the lower surface side of the ladder 18 and is formed so that the operating lever can be rotated from the living space 4 side when the ladder 18 is in the stored state. In the state where the part 101 is engaged for the engagement part, it is deviated toward the locking member d side with respect to the pivot frame made of the operating lever, and the part 101 is moved toward the vertically downward position of the pivot axis of the operating lever %. Since the engagement between the above-mentioned locking step plate and the engaging portion 9 is disengaged, when it is desired to lower the free end of the ladder 18 from the storage position in order to use the ladder, By pulling down the operating part of the operating lever member from below, the operating part housing is moved toward the vertically downward position of the pivot of the operating lever member, and the engagement between the locking stepped part 101 and the engaging part 91 is disengaged. As a result, the free end of the ladder 18 can be lowered by continuing to pull down the operating lever, and the effect is that the ladder 18 can be easily lowered by simply pulling down the operating lever. There is.

捷だ上記係止部材群の外周部には、梯子１８の他端部を
下降させた状態において上記操作レノ＜−頒を受止めて
操作レバー妬の係止部打釘方向への口重１１を阻止する
ように突出された保合部９１を備え、操作レバー％には
梯子用の他端部を下降さゼた状態で上記保合部９１に当
接するように形成された回動規制部角を備え、更に梯子
用には上記回動規制部用が係合部９１に当接した状態で
上記操作レノ＜−鄭の係止部打釘側とは反対側方向への
回動を囚１止するようにしたストッパー１０３を設けで
あるので、」二重のように操作レバー製を用いて梯子】
８を下降させたり或は上昇させる場合でも、操作し・く
−％の回動を係合部９１とストッパー１０３で阻止して
不動にすることができて梯子用の上げ下は動作を操作レ
バー製を用いて容易にかつ安全に行える効果があ／／The outer periphery of the group of locking members that has been twisted is provided with a mouth weight 11 that receives the operation lever when the other end of the ladder 18 is lowered and pushes the locking portion of the operation lever in the direction of driving the nail. The operating lever is provided with a retaining part 91 that protrudes to prevent the ladder from moving, and the operating lever has a rotation restricting part formed so as to come into contact with the retaining part 91 when the other end of the ladder is lowered. In addition, for ladders, when the rotation restricting part is in contact with the engaging part 91, the locking part of the operating lever is prevented from rotating in the direction opposite to the driving nail side. Since the stopper 103 is provided so that it stops once, the ladder can be operated using a double operating lever.
Even when lowering or raising the ladder, the engaging part 91 and the stopper 103 prevent the rotation of the lever and prevent it from moving. It is effective and can be easily and safely performed using

【図面の簡単な説明】[Brief explanation of the drawing]

図面は本願の実施例を示すもので、第１図は収納梯子の
使用状態を示す側面図、第２図は収納梯子の主要部の拡
大断面図、第３図はト］線拡大断面図、第ψ図は第２図
の平面図、第５図はＶ−Ｖ線拡大断面ｉ、第６図は梯子
の収納状態を一部を省略して示す断面図、第７図は折畳
み状態の梯子を示す側面図、第ｇ図は折畳み状態の梯子
折曲部の側面図、第９図は引き伸ばし途中状態の梯子折
曲部の側面図、第７０図は引き伸ばし状態の梯子折曲部
の側面図、第１／図はＸｌ−Ｘｌ線断面図、第１２図は
圧縮げねの連結具を示す一部切欠断面図、第７３図は第
１２図の正面図、第１４図は圧縮ばねとしてのガススプ
リングを示す断面図、第１ｊ図はガススプリングの伸張
力特性とガススプリングの連結具の働きとの関係を示す
説明図、第１６図は梯子の下降角度と梯子に作用する回
転モーメントとの関係を示すグラフ、第１７図はＸ■−
ｘｍ線拡大断面図、第１ｆ図は用ト４■線断面＠−筺／
９面は筑ｌ吊杆と第２吊杆の作動状態を示す側面図、第
２０図はロック装置部分の拡大断面図、第２７図は第２
０図の平面図、第２２図は梯子下降状態におけるロック
装置部分の断面図、第２３図はロック装置の作動説明図
、＠２’１図は圧縮ばねの異なる実施例を示す断面図、
第２ｊ図は第２４１図に示す圧縮ばねの伸張力特性を示
すグラフ、第２乙図は圧縮ばねの連結具の異なる実施例
を示す側面図、第２７図は圧縮ばねの連結具の他の異な
る実施例を示す一部切欠平面図、第２ｇ図は第２７図に
示す連結具の作動説明図。 ２・・・天井、４・・・居住空間、５・・・天井空間、
１１・・・開口部、１４・・・連結腕、］８・・・梯子
、４６・・・ガススプリング（圧縮はね）。 第１０図 ２り 第９図 第８図 笥１１閏 第１７　１’１ ７４７１　ｃａｂ　１９１ ＼＼ ７３　ゝ慢、／ ７０　ゝさく＼ 充 へ、 “　＼　／ ゛−ン゛−］２The drawings show an embodiment of the present application, and FIG. 1 is a side view showing how the storage ladder is used, FIG. 2 is an enlarged cross-sectional view of the main part of the storage ladder, and FIG. 3 is an enlarged cross-sectional view along line G. Fig. ψ is a plan view of Fig. 2, Fig. 5 is an enlarged cross section taken along the line V-V, Fig. 6 is a sectional view showing the stowed state of the ladder with some parts omitted, and Fig. 7 is the ladder in the folded state. Figure G is a side view of the folded part of the ladder in the folded state, Figure 9 is a side view of the folded part of the ladder in the middle of being stretched, and Figure 70 is a side view of the folded part of the ladder in the stretched state. , Figure 1/Figure 1 is a sectional view taken along the line Xl-Xl, Figure 12 is a partially cutaway sectional view showing a compression spring connector, Figure 73 is a front view of Figure 12, and Figure 14 is a compression spring as shown in Figure 12. A sectional view showing a gas spring, Fig. 1j is an explanatory drawing showing the relationship between the extension force characteristics of the gas spring and the function of the gas spring coupling, and Fig. 16 is an explanatory diagram showing the relationship between the downward angle of the ladder and the rotational moment acting on the ladder. A graph showing the relationship, Figure 17 is X■-
xm line enlarged cross-sectional view, Figure 1f is a cross-sectional view of
Figure 9 is a side view showing the operating state of the Chikuru hanging rod and the second hanging rod, Figure 20 is an enlarged sectional view of the locking device part, and Figure 27 is the second hanging rod.
Fig. 0 is a plan view, Fig. 22 is a sectional view of the locking device part in the lowered state of the ladder, Fig. 23 is an explanatory diagram of the operation of the locking device, @2'1 is a sectional view showing different embodiments of the compression spring,
Figure 2j is a graph showing the tensile force characteristics of the compression spring shown in Figure 241, Figure 2B is a side view showing different embodiments of the compression spring connector, and Figure 27 is a graph showing another example of the compression spring connector. A partially cutaway plan view showing a different embodiment, and FIG. 2g is an explanatory diagram of the operation of the connector shown in FIG. 27. 2...Ceiling, 4...Living space, 5...Ceiling space,
11... Opening, 14... Connecting arm,] 8... Ladder, 46... Gas spring (compression spring). Fig. 10 2 Fig. 9 Fig. 8

Claims (1)

【特許請求の範囲】[Claims] 建物内を居住空間とその上の天井空間とに仕切るのに用
いである天井にあって、そこには開口部を設け、その開
口部には開口部を塞ぐように梯子を配設し、その梯子の
一端部は上記開口部の一方の縁部に枢着し、その梯子の
他端部は−Ｆ、記開口部の他方の縁部にロック装置によ
り掛は外し２可能に構成し、そのロック装置の掛止を外
して梯子を傾斜させることによってその梯子を居住空間
から天井空間に向けて登る用に供し得るようにしである
収納梯子において、上記ロック装置は、Ｊ二重開ロ１部
の他方の縁部に沿わせて横向きに止着された掛止体と、
上記梯子の他端部に対して」二重掛止棒と略平行となる
ように設けた支軸を介して回動可能に枢着され、かつそ
の支軸を中心にして一方向へ回動するようにばねで付勢
された係止部利と、上記梯子の他端部に自体の上端部が
上記掛止体と略平行な枢軸を介して回動可能に枢着され
、かつ自体の下端部が上記係止部相方向へ回動するよう
にばねで付勢された操作レバーを具備し、上記係止部材
の周辺部には、上記梯子の他端部を下降させた状態にお
いて上記操作レバーを受止めて操作レバーの係止部相方
向への回動を阻止するように突出された保合部と、梯子
を収納位置に上昇させたとき上記掛止体に当接して下方
へ回動されるように突出された当接部と１、梯子を収納
位置に上昇させたとき上記当接部が掛止体で回動される
ことによりその掛止体の」二側を係止するように突出さ
れた係止爪とを備え、上記操作レバーには、梯子の他端
部を下降させた状態で上記係合部に当接するように形成
された回動規制部と、梯子を収納位置に上昇させたとき
上記掛止体により回動された係止部材の係合部に係合し
て係止部拐の戻シ回動を係止するように形成された係止
段部と、梯子の下面側に露出され、梯子の収納状態にお
いて居住空間側から操作レバーを回動操作し得るように
形成された操作部とを備え、上記操作部の位置は係止段
部が保合部に係合した状態で操作レバーの枢軸よりも係
止部開側に偏位し、かつ自体が操作レバーの枢軸の垂直
下方位置に向けて移動されると上記係止段部と係合部の
係合が外れるように設定し、更に上記梯子には上記回動
規制部が係合部に当接した状態で上記操作レバーの係止
部開側とｔ」反対側方向への回動を阻止するようにした
ストッパーが設けであることを特徴とする収納梯子。A ceiling used to partition a building into a living space and a ceiling space above it, with an opening in the ceiling and a ladder placed in the opening to block the opening. One end of the ladder is pivotally attached to one edge of the opening, and the other end of the ladder is configured to be able to be latched and removed by a locking device at the other edge of the opening. In the storage ladder, the locking device is configured such that the ladder can be climbed from the living space to the ceiling space by unlatching the locking device and tilting the ladder, and the locking device has a J double opening section. a hanging body fastened horizontally along the other edge of the
It is pivotably attached to the other end of the ladder via a support shaft provided approximately parallel to the double hanging rod, and rotates in one direction about the support shaft. a locking part lever which is biased by a spring so as to rotate; An operation lever is provided at the periphery of the locking member, the lower end of which is biased by a spring such that the lower end rotates in the direction of the locking portion, and when the other end of the ladder is lowered, A retaining part protrudes to receive the operating lever and prevent the operating lever from rotating in the direction of the locking part, and when the ladder is raised to the storage position, it comes into contact with the locking part and moves downward. A contact part protrudes to be rotated, and when the ladder is raised to the storage position, the contact part is rotated by the latch body, thereby locking the two sides of the latch body. The operation lever has a rotation regulating part formed to abut on the engaging part when the other end of the ladder is lowered, and a locking claw protruding to prevent the ladder from moving. a locking step portion formed to engage with the engaging portion of the locking member rotated by the locking member when raised to the storage position, and to lock the return rotation of the locking portion; and an operating part that is exposed on the bottom side of the ladder and is formed so that the operating lever can be rotated from the living space side when the ladder is stored, and the position of the operating part is maintained by the locking step. When engaged with the joint part, the locking part is deviated toward the opening side of the operating lever pivot, and when the lever itself is moved toward a vertically downward position of the operating lever pivot, it engages with the locking stepped part. The ladder is set so that the locking part is disengaged, and the ladder is set so that the rotation regulating part is in contact with the engaging part, and the operating lever is rotated in the direction opposite to the locking part open side. A storage ladder characterized in that it is provided with a stopper designed to prevent.