JPH0183900U - - Google Patents
Info
- Publication number
- JPH0183900U JPH0183900U JP1987181538U JP18153887U JPH0183900U JP H0183900 U JPH0183900 U JP H0183900U JP 1987181538 U JP1987181538 U JP 1987181538U JP 18153887 U JP18153887 U JP 18153887U JP H0183900 U JPH0183900 U JP H0183900U
- Authority
- JP
- Japan
- Prior art keywords
- spring
- ladder
- ladder member
- fixed
- side plate
- 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
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Ladders (AREA)
Description
第１図はこの考案の一実施例の部分詳細側面図
、第２図はその全体斜視図、第３図はそのヒンジ
の斜視図、第４図はその天井収納用はしご装置の
動作を示す斜視図である。
１…開口、２…蓋板、３…下段はしご部材、４
…ばね、５…中段はしご部材、６…ヒンジ。
Fig. 1 is a partially detailed side view of an embodiment of this invention, Fig. 2 is a perspective view of the whole, Fig. 3 is a perspective view of its hinge, and Fig. 4 is a perspective view showing the operation of the ceiling storage ladder device. It is a diagram. 1... Opening, 2... Lid plate, 3... Lower ladder member, 4
... Spring, 5... Middle ladder member, 6... Hinge.
Claims (1)
動自在の蓋板を設け、この蓋板の内面側に下段は
しご部材を固定し、この下段はしご部材の側板の
先端部にヒンジの一方の羽部材を固定し、他方の
羽部材を中段はしご部材の側板に連結することに
より折り畳み可能に形成した天井収納用はしご装
置において、前記下段はしご部材にばねの一端を
固定し、前記ヒンジの他方の羽部材に前記ばねの
他端を係止し、かつその係止位置を、前記中段は
しご部材の折り畳み状態で前記ばねの一端と前記
ヒンジの回動中心とを結ぶ線よりも上側に位置し
、前記中段はしご部材の伸長状態で前記線よりも
下側に位置するように設定したことを特徴とする
天井収納用はしご装置。 An opening is provided in the ceiling, a downwardly rotatable cover plate is provided on one side of the opening, a lower ladder member is fixed to the inner surface of the cover plate, and one side of the hinge is attached to the tip of the side plate of the lower ladder member. In the ceiling storage ladder device, which is formed so as to be foldable by fixing the wing member and connecting the other wing member to the side plate of the middle ladder member, one end of the spring is fixed to the lower ladder member, and the other end of the spring is fixed to the lower ladder member, and the other wing member is connected to the side plate of the middle ladder member. The other end of the spring is locked to the wing member, and the locking position is located above a line connecting one end of the spring and the center of rotation of the hinge when the middle ladder member is folded. . A ceiling storage ladder device, characterized in that the middle ladder member is set to be located below the line in an extended state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987181538U JPH0183900U (en) | 1987-11-26 | 1987-11-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987181538U JPH0183900U (en) | 1987-11-26 | 1987-11-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0183900U true JPH0183900U (en) | 1989-06-05 |
Family
ID=31473020
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987181538U Pending JPH0183900U (en) | 1987-11-26 | 1987-11-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0183900U (en) |
-
1987
- 1987-11-26 JP JP1987181538U patent/JPH0183900U/ja active Pending