JPH0583300U - Ceiling storage ladder lock structure - Google Patents
Ceiling storage ladder lock structureInfo
- Publication number
- JPH0583300U JPH0583300U JP2382392U JP2382392U JPH0583300U JP H0583300 U JPH0583300 U JP H0583300U JP 2382392 U JP2382392 U JP 2382392U JP 2382392 U JP2382392 U JP 2382392U JP H0583300 U JPH0583300 U JP H0583300U
- Authority
- JP
- Japan
- Prior art keywords
- lid
- lock
- attached
- retractable
- lock body
- 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.)
- Granted
Links
Landscapes
- Ladders (AREA)
Abstract
(57)【要約】
【目的】蓋体のロックをより安全におこないながら操作
性を低下させないようにする。
【構成】天井に形成する略四角形の開口1の一側縁部に
蓋体2を揺動開閉自在に枢着する。蓋体2の上面側に格
納及び伸長自在に梯子装置3を取付ける。蓋体2にその
枢支側を除く残りの三つの縁から突出引退自在にロック
体4を付設する。ロック体4は付勢手段にて突出付勢す
る。これら三つのロック体4を一つの回転体5に回動自
在に枢支連結する。回転体5の回動にてロック体4を引
退自在に構成する。回転体5に設けられた被操作部6が
蓋体2の下面に露出して配設する。
(57) [Summary] [Purpose] Lock the lid more safely while preventing operability. [Structure] A lid 2 is pivotally attached to one side edge of a substantially rectangular opening 1 formed in a ceiling so as to be swingable and openable. The ladder device 3 is attached to the upper surface side of the lid body 2 so as to be retractable and extendable. A lock body 4 is attached to the lid body 2 so as to project and retreat from the remaining three edges except the pivot side thereof. The lock body 4 is urged by the urging means to project. These three lock bodies 4 are rotatably and pivotally connected to one rotary body 5. The lock body 4 is configured to be retractable by the rotation of the rotary body 5. The operated portion 6 provided on the rotating body 5 is arranged so as to be exposed on the lower surface of the lid body 2.
Description
【0001】[0001]
本考案は、天井収納梯子のロック構造に関し、詳しくは蓋体のロックをより安 全におこなおうとする技術に係るものである。 The present invention relates to a locking structure for a ceiling storage ladder, and more particularly to a technique for more safely locking a lid.
【0002】[0002]
従来、天井に形成された略四角形の開口の一側縁部に蓋体が揺動開閉自在に枢 着され、蓋体の上面側に格納及び伸縮自在に梯子装置が取付けられ、蓋体の枢支 側とは反対側の縁部において蓋体に一つのロック体が突出引退自在に取付けられ 、しかして、ロック体の被操作部を下方から操作して蓋体のロックを外して蓋体 を下方に揺動させ、梯子装置を引き降ろすのである。 Conventionally, a lid is pivotally attached to one side edge of a substantially rectangular opening formed in a ceiling so that the lid can be swung open and closed, and a ladder device is attached to the top side of the lid so as to be retractable and extendable. One lock body is attached to the lid at the edge on the side opposite to the support side so that it can project and retract, and the operated portion of the lock body is operated from below to unlock the lid and remove the lid. It swings downwards and the ladder device is pulled down.
【0003】[0003]
ところがこのような構成のものにおいては、ロック体は蓋体にその枢支側とは 反対側の縁部にのみ設けられていて、四角形の対向する残りの二つの縁部にはロ ック体がなく、安定したロックをなし難く、そこで、残りの二つに縁部にもロッ ク体を設けるのに、操作系が複雑になり、床側から操作してロック解除をおこな う操作性も低下し、使い易さが損なわれるという問題があった。 However, in such a structure, the lock body is provided only on the edge portion of the lid body on the side opposite to the pivot side, and the lock body is provided on the remaining two opposite edge portions of the square. It is difficult to achieve a stable lock because there is no lock.Therefore, even if a lock body is provided at the edge of the other two, the operation system becomes complicated, and the operability to operate the lock from the floor side is used. However, there is a problem in that the ease of use is impaired.
【0004】 本考案はこのような問題を解消しようとするものであり、その目的とするとこ ろは、操作性を低下させることなく枢支側を除く三つの縁においてロックをおこ なえ、安全性を高めることができ、かつその操作性の低下を回避することができ る天井収納梯子のロック構造を提供するにある。The present invention is intended to solve such a problem, and an object thereof is to lock at three edges excluding the pivotal side without deteriorating the operability, thereby ensuring safety. (EN) Provided is a lock structure for a ceiling storage ladder which can improve the operability and can avoid a decrease in its operability.
【0005】[0005]
本考案は、天井に形成された略四角形の開口1の一側縁部に蓋体2が揺動開閉 自在に枢着され、蓋体2の上面側に格納及び伸長自在に梯子装置3が取付けられ 、蓋体2にその枢支側を除く残りの三つの縁から突出引退自在にロック体4を付 設し、ロック体4は付勢手段にて突出付勢され、これら三つのロック体4を一つ の回転体5に回動自在に枢支連結し、回転体5の回動にてロック体4を引退自在 に構成し、回転体5に設けられた被操作部6が蓋体2の下面に露出して配設され て成ることを特徴とするものである。 According to the present invention, a lid 2 is pivotally attached to one side edge of a substantially rectangular opening 1 formed in a ceiling so that the lid 2 can be swingably opened and closed, and a ladder device 3 is attached to an upper surface of the lid 2 so as to be retractable and extendable. Then, a lock body 4 is attached to the lid body 2 so as to project and retract from the remaining three edges except for the pivot side thereof, and the lock body 4 is urged by the urging means to project. Is rotatably and pivotally connected to one rotary body 5, and the lock body 4 is configured to be retractable by the rotation of the rotary body 5, and the operated portion 6 provided on the rotary body 5 includes the lid body 2. It is characterized in that it is exposed and disposed on the lower surface of the.
【0006】[0006]
三つのロック体4にて枢支側を除く残りの全ての縁部におけるロックをおこな う。それでいて、被操作部6の操作にて回転体5を介して三つのロック体4を引 退させてロックを解除して、その操作性を低下させることがない。 All three edges except the pivot side are locked by the three lock bodies 4. Moreover, the operability is not deteriorated by the operation of the operated portion 6 causing the three lock bodies 4 to be withdrawn through the rotating body 5 to release the lock.
【0007】[0007]
天井の開口部分には四側壁から形成された枠体8が取付けられ、この枠体8に 開口1が形成されていて、開口1の一側縁部に蓋体2が回動軸(図示せず)にて 揺動開閉自在に枢着されている。蓋体2の上面側に格納及び伸長自在に梯子装置 3が取付けられている。梯子装置3は梯子素体9の複数個を折り畳みもしくは伸 縮自在に連結したものであり、蓋体2の開閉はバランススプリング10を使って 軽くおこなえるようにしてある。ロック体4にて蓋体2の閉成状態をロックして 、枠体8の開口1の閉塞状態を維持できるようにしてある。このような梯子装置 3の構成は種々設計変更可能である。 A frame body 8 formed of four side walls is attached to the opening portion of the ceiling, an opening 1 is formed in the frame body 8, and a lid body 2 is provided at one side edge portion of the opening 1 with a rotary shaft (not shown). It is pivotally attached so that it can be swung open and closed. A ladder device 3 is attached to the upper surface side of the lid body 2 so as to be retractable and extendable. The ladder device 3 is formed by connecting a plurality of ladder elements 9 so that they can be folded or expanded and contracted, and the lid 2 can be lightly opened and closed by using a balance spring 10. The closed state of the lid body 2 is locked by the lock body 4 so that the closed state of the opening 1 of the frame body 8 can be maintained. The design of the ladder device 3 can be changed in various ways.
【0008】 蓋体2にはその枢支側を除く残りの三つの縁から突出引退自在にロック体4を 付設してある。具体的には、蓋体2の枢支側とは反対側の端縁部の略中央部に基 板11が取付けられ、この基板11に回転体5が軸12にて回転自在に取付けら れ、この回転体5には三方にリンク14を軸13を介して相対回動自在に取付け てある。リンク14の先端には軸15を介してロック体4を枢支連結してある。 ロック体4はガイド部7にてスライド自在に案内されている。そして回転体5に は被操作部6が突設されて、被操作部6が蓋体2の表面側に露出されている。被 操作部6は図4(b)に示すように、半円形の板状に形成されている。回転体5 はばねのような付勢手段(図示せず)にて回動付勢されて、三つのロック体4が 突出付勢されている。A lock body 4 is attached to the lid body 2 so as to project and retract from the remaining three edges of the lid body except the pivotal side. Specifically, the base plate 11 is attached to a substantially central portion of the edge of the lid 2 opposite to the pivot side, and the rotating body 5 is rotatably attached to the substrate 11 by the shaft 12. Links 14 are attached to the rotating body 5 on three sides via a shaft 13 so as to be relatively rotatable. The lock body 4 is pivotally connected to the tip of the link 14 via a shaft 15. The lock body 4 is slidably guided by a guide portion 7. An operated portion 6 is provided on the rotating body 5 so as to project, and the operated portion 6 is exposed on the surface side of the lid 2. As shown in FIG. 4B, the operated part 6 is formed in a semicircular plate shape. The rotating body 5 is rotationally biased by a biasing means (not shown) such as a spring, so that the three lock bodies 4 are biased to project.
【0009】 しかして、床側から棒状の操作具(図示せず)の先端の係合部を半円状の被操 作部6に係合し、棒状の操作具を回転させて回転体5を付勢手段に抗して図3( a)のイ矢印方向に回転させ、リンク14を介して三つのロック体4を引退させ 、そして、蓋体2はバランススプリング10にてゆっくりと下降回動され、その 下限位置において梯子装置3を引き降ろして床面に至らせるのである。Then, from the floor side, the engaging portion at the tip of the rod-shaped operating tool (not shown) is engaged with the semi-circular operated portion 6, and the rod-shaped operating tool is rotated to rotate the rotating body 5. 3 is rotated in the direction of arrow a in FIG. 3 (a) against the biasing means to retract the three lock bodies 4 via the links 14, and the lid body 2 is slowly lowered by the balance spring 10. The ladder device 3 is moved down, and the ladder device 3 is pulled down to the floor surface at the lower limit position.
【0010】 以上のように、三つのロック体4にて枢支側を除く残りの全ての縁部における ロックをおこなうのであり、それでいて、被操作部6の操作にて回転体5を介し て三つのロック体4を引退させてロックを解除して、その操作性を低下させるこ とがないものである。As described above, the three lock bodies 4 lock all the remaining edges except the pivotal side, and yet the operation of the operated portion 6 causes the rotation body 5 to move through the three bodies. The two lock bodies 4 are not retired to release the lock, and the operability thereof is not lowered.
【0011】[0011]
本考案は上述のように、天井に形成された略四角形の開口の一側縁部に蓋体が 揺動開閉自在に枢着され、蓋体の上面側に格納及び伸長自在に梯子装置が取付け られ、蓋体にその枢支側を除く残りの三つの縁から引退自在にロック体を付設し 、ロック体は付勢手段にて突出付勢され、これら三つのロック体を一つの回転体 に回動自在に枢支連結し、回転体の回動にてロック体を突出引退自在に構成し、 回転体に設けられた被操作部が蓋体の下面に露出して配設されているから、三つ のロック体にて枢支側を除く残りの全ての縁部におけるロックがおこなえ、安全 性をより高めながら、被操作部の操作にて回転体を介して三つのロック体を引退 させてロックを解除でき、その操作性を低下させることがないという利点がある 。 As described above, according to the present invention, the lid is pivotally attached to one side edge of the substantially square opening formed in the ceiling so that the lid can swing and open, and the ladder device is attached to the upper surface of the lid so as to be retractable and extendable. Then, a lock body is attached to the lid body so as to be retractable from the remaining three edges except the pivotal side, and the lock body is urged by the urging means to project these three lock bodies into one rotating body. It is rotatably pivotally connected, and the lock body is configured to project and retract by the rotation of the rotating body, and the operated portion provided on the rotating body is arranged to be exposed on the lower surface of the lid body. , All three edges except the pivot side can be locked with three locks, and while increasing the safety, the three locks can be retracted via the rotating body by operating the operated part. There is an advantage that the lock can be released by using the lock and the operability is not reduced.
【図1】本考案の一実施例の梯子装置の引き降ろし状態
の側断面図である。FIG. 1 is a side sectional view of a ladder device according to an embodiment of the present invention in a pulled-down state.
【図2】同上の正断面図である。FIG. 2 is a front sectional view of the above.
【図3】(a)(b)は同上の作用を示す底面図であ
る。3 (a) and 3 (b) are bottom views showing the same effect.
【図4】(a)は側断面図、(b)は部分斜視図であ
る。4A is a side sectional view and FIG. 4B is a partial perspective view.
1 開口 2 蓋体 3 梯子装置 4 ロック体 5 回転体 6 被操作部 7 ガイド部 1 Opening 2 Lid body 3 Ladder device 4 Lock body 5 Rotating body 6 Operated part 7 Guide part
Claims (1)
縁部に蓋体が揺動開閉自在に枢着され、蓋体の上面側に
格納及び伸長自在に梯子装置が取付けられ、蓋体にその
枢支側を除く残りの三つの縁から突出引退自在にロック
体を付設し、ロック体は付勢手段にて突出付勢され、こ
れら三つのロック体を一つの回転体に回動自在に枢支連
結し、回転体の正逆方向の回動にてロック体を引退自在
に構成し、回転体に設けられた被操作部が蓋体の下面に
露出して配設されて成る天井収納梯子のロック構造。1. A lid is pivotally attached to one side edge of a substantially quadrangular opening formed in a ceiling so as to swing and open, and a ladder device is attached to an upper surface of the lid so as to be retractable and extendable. A lock body is attached to the body so as to project and retract from the remaining three edges except the pivot side, and the lock body is projectingly biased by the biasing means, and these three lock bodies are rotated to one rotating body. The lock body is freely pivotally connected, and the lock body is retractable by rotating the rotary body in the forward and reverse directions, and the operated portion provided on the rotary body is disposed so as to be exposed on the lower surface of the lid body. Locking structure for ceiling storage ladder.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1992023823U JP2530587Y2 (en) | 1992-04-15 | 1992-04-15 | Lock structure of ceiling storage ladder |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1992023823U JP2530587Y2 (en) | 1992-04-15 | 1992-04-15 | Lock structure of ceiling storage ladder |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0583300U true JPH0583300U (en) | 1993-11-12 |
JP2530587Y2 JP2530587Y2 (en) | 1997-03-26 |
Family
ID=12121084
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1992023823U Expired - Lifetime JP2530587Y2 (en) | 1992-04-15 | 1992-04-15 | Lock structure of ceiling storage ladder |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2530587Y2 (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58172698U (en) * | 1982-05-13 | 1983-11-18 | 岩崎金属工業株式会社 | Ceiling cover lock mechanism |
JPS6141760U (en) * | 1984-08-22 | 1986-03-17 | 株式会社 伊藤喜工作所 | Emergency lock device for safes, etc. |
-
1992
- 1992-04-15 JP JP1992023823U patent/JP2530587Y2/en not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58172698U (en) * | 1982-05-13 | 1983-11-18 | 岩崎金属工業株式会社 | Ceiling cover lock mechanism |
JPS6141760U (en) * | 1984-08-22 | 1986-03-17 | 株式会社 伊藤喜工作所 | Emergency lock device for safes, etc. |
Also Published As
Publication number | Publication date |
---|---|
JP2530587Y2 (en) | 1997-03-26 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 19961112 |
|
EXPY | Cancellation because of completion of term |