JPH0274499U - - Google Patents
Info
- Publication number
- JPH0274499U JPH0274499U JP15413588U JP15413588U JPH0274499U JP H0274499 U JPH0274499 U JP H0274499U JP 15413588 U JP15413588 U JP 15413588U JP 15413588 U JP15413588 U JP 15413588U JP H0274499 U JPH0274499 U JP H0274499U
- Authority
- JP
- Japan
- Prior art keywords
- ladder member
- ladder
- ceiling
- cover plate
- face
- 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.)
- Pending
Links
Landscapes
- Ladders (AREA)
Description
第１図はこの考案の一実施例の斜視図、第２図
はその上下段はしご部材の部分断面図、第３図は
従来例の部分断面図である。
１……開口枠、２……蓋板、３……上段はしご
部材、４……下段はしご部材、３ａ，４ａ……側
桁、３ｂ，４ｂ……踏板。
FIG. 1 is a perspective view of an embodiment of this invention, FIG. 2 is a partial sectional view of the upper and lower ladder members, and FIG. 3 is a partial sectional view of a conventional example. 1... Opening frame, 2... Lid plate, 3... Upper ladder member, 4... Lower ladder member, 3a, 4a... Side beam, 3b, 4b... Step board.
Claims (1)
この蓋板の天井裏側に固定した上段はしご部材と
、この上段はしご部材に電動により昇降自在に設
けた下段はしご部材とからなる天井はしご装置に
おいて、前記上段はしご部材および前記下段はし
ご部材の少なくとも一方のはしご部材の踏板の他
方のはしご部材側の端面を、一方のはしご部材の
側桁の他方のはしご部材側の端面から後退させた
状態で設けたことを特徴とする天井はしご装置。 A cover plate is installed in the opening in the ceiling so that it can be rotated downwards,
In a ceiling ladder device comprising an upper ladder member fixed to the back side of the ceiling of the cover plate, and a lower ladder member provided on the upper ladder member so as to be movable up and down by electric power, at least one of the upper ladder member and the lower ladder member is provided. A ceiling ladder device characterized in that an end face of a tread of a ladder member on the other ladder member side is set back from an end face of a stringer of one ladder member on the other ladder member side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15413588U JPH0274499U (en) | 1988-11-25 | 1988-11-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15413588U JPH0274499U (en) | 1988-11-25 | 1988-11-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0274499U true JPH0274499U (en) | 1990-06-07 |
Family
ID=31430598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15413588U Pending JPH0274499U (en) | 1988-11-25 | 1988-11-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0274499U (en) |
-
1988
- 1988-11-25 JP JP15413588U patent/JPH0274499U/ja active Pending