JPS6037527U - ceiling ladder device - 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

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

図は本考案の実施例を示し、第１図ははしご本体の展開
張出し状態を示す側面図、第２図は同部分拡大図、第３
図は折畳み格納途中の部分拡大図である。 １・・・縁枠、２・・・天蓋、３・・・はしご本体、３
ａｔ３ｂ、３ｃ・・・上下三段のはしご部、８・・・付
勢体としてのガススプリング、９・・・駆動リンク、１
０・・・第１０ツク手段を兼用するリンク機構、１７・
・・第　　　゛２０ツク手段としてのロック機構。The figures show an embodiment of the present invention, in which Fig. 1 is a side view showing the extended state of the ladder body, Fig. 2 is an enlarged view of the same part, and Fig. 3 is a side view showing the extended state of the ladder body.
The figure is a partially enlarged view of the folding device in the middle of being stored. 1... Edge frame, 2... Canopy, 3... Ladder body, 3
at3b, 3c... Upper and lower three-stage ladder portion, 8... Gas spring as a biasing body, 9... Drive link, 1
0...Link mechanism that also serves as the 10th hook means, 17.
...Lock mechanism as the 20th locking means.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 天井の開口部に装着された縁枠と、該縁枠に開閉可能に
枢設された天蓋と、この天蓋閉成状態で該天蓋上方に折
畳み格納され、同天蓋開放時に展開して上記縁枠と床面
との間に架は渡される上下複数段のはしご部からなるは
しご本体とを備えた天井用はしご装置において、中間部
が上記縁枠に、一端部が上記天蓋にそれぞれ枢着された
駆動リンクと、この駆動リンクの他端部と縁枠との間に
設ｐすられ該駆動リンクを介して天蓋を閉成させる方向
のバネ力を発揮するガススプリング等の付勢体と、この
付勢体による天蓋閉成方向の力をはしご本体に折畳み格
納方向の力として伝えるリンク機構と、はしご本体を展
開状態にロックする第１０ツク手段と、はしご本体にお
ける上から２段目以下のはしご部が上記付勢体のバネ力
によって最上段はしご部に対し所定の折畳み状態に回動
変位するまでの開設上段はしご部の回動を阻止する第２
０ツク手投とを具備してなることを特徴とする天井用は
しご装置。A frame attached to an opening in the ceiling; a canopy pivotally mounted on the frame so as to be openable and closable; when the canopy is closed, the canopy is folded and stored above the canopy, and when the canopy is opened, it is unfolded to form the frame. and a ladder main body consisting of a plurality of upper and lower ladder parts, with a rack passing between the floor and the floor, the middle part of which is pivoted to the edge frame, and one end of which is pivoted to the canopy. a drive link; a biasing body such as a gas spring installed between the other end of the drive link and the edge frame and exerting a spring force in the direction of closing the canopy via the drive link; A link mechanism that transmits the force in the canopy closing direction by the biasing body to the ladder body as a force in the folding and storing direction, a tenth locking means for locking the ladder body in the unfolded state, and a ladder at the second rung or lower from the top in the ladder body. a second part that prevents the opening upper ladder part from rotating until the part is rotationally displaced to a predetermined folded state with respect to the uppermost ladder part by the spring force of the biasing body;
A ceiling ladder device characterized in that it is equipped with a 0-tsuku hand throw.