JPS629630U - - Google Patents
Info
- Publication number
- JPS629630U JPS629630U JP10056485U JP10056485U JPS629630U JP S629630 U JPS629630 U JP S629630U JP 10056485 U JP10056485 U JP 10056485U JP 10056485 U JP10056485 U JP 10056485U JP S629630 U JPS629630 U JP S629630U
- Authority
- JP
- Japan
- Prior art keywords
- metal fittings
- supporting metal
- attached
- mentioned
- brackets
- 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
- 239000002184 metal Substances 0.000 claims description 4
- 230000002787 reinforcement Effects 0.000 description 1
Landscapes
- Ladders (AREA)
Description
第１図は本考案に係る梯子ユニツトの外観斜視
図、第２図は同ユニツトの収納状態を表わす側断
面図、第３図は同ユニツトの展開状態を表わす側
断面図、第４図は従来例の側断面図である。
１…折畳み式梯子ユニツト、２…枠体、３…天
井面、４…開口部、５…踏板、６…蓋板、７…リ
ンク機構、８…ブラケツト、９…側板、１０…前
部支持金具、１１…リンク杆、１１ａ，１１ｂ…
支軸、１２…後部支持金具、１３…リンク杆、１
３ａ，１３ｂ…支軸、１４…ストツパー、１５…
サポートアーム、１６…ガススプリング、１６ａ
…シリンダー、１６ｂ…ピストンロツド、１７…
ピン、１８…スリツト、１９…ピン、２０…調整
ボルト、２１…ロツク金具、２１ａ…スライドバ
ー、２１ｂ…操作レバー、２２…フツク、２３…
折畳み梯子、２３ａ…上段部、２３ｂ…中段部、
２３ｃ…下段部、２４…ヒンジ、２５…側杆、２
６…凹溝、２７…補強脚、２８…ボルト、２９…
手すり。
Fig. 1 is an external perspective view of the ladder unit according to the present invention, Fig. 2 is a side sectional view showing the unit in the stowed state, Fig. 3 is a side sectional view showing the unit in the unfolded state, and Fig. 4 is the conventional ladder unit. FIG. 3 is a side cross-sectional view of an example. DESCRIPTION OF SYMBOLS 1...Folding ladder unit, 2...Frame, 3...Ceiling surface, 4...Opening, 5...Treadboard, 6...Lid plate, 7...Link mechanism, 8...Bracket, 9...Side plate, 10...Front support metal fittings , 11... link rod, 11a, 11b...
Support shaft, 12... Rear support bracket, 13... Link rod, 1
3a, 13b...support shaft, 14...stopper, 15...
Support arm, 16... Gas spring, 16a
...Cylinder, 16b...Piston rod, 17...
Pin, 18...Slit, 19...Pin, 20...Adjustment bolt, 21...Lock fitting, 21a...Slide bar, 21b...Operation lever, 22...Hook, 23...
Folding ladder, 23a...upper tier, 23b...middle tier,
23c...lower section, 24...hinge, 25...side rod, 2
6...concave groove, 27...reinforcement leg, 28...bolt, 29...
handrail.
Claims (1)
る枠体の底部に、同開口部を遮蔽可能に形成する
蓋板を開閉自在に設け、同蓋板の上面に梯子を折
畳み及び展開自在に固着させて成る梯子ユニツト
において、上記蓋板の上面でその前端寄り位置に
左右一対のブラケツト及びサポートアームを夫々
取付ける一方、上記枠体の左右両側板には前後方
向に間隔を存して左右一対の支持金具を夫々取付
け、同支持金具と上記ブラケツトをリンク杆を介
して連結させるとともに、後方に位置する支持金
具と上記サポートアーム間にはガススプリングを
張設させるに、同ガススプリングはその弾発力が
死点を介して上下両方向に作用可能な如く張設さ
せて成る折畳み式梯子ユニツトの折畳み機構。 At the bottom of a frame formed in a rectangular shape so as to be able to surround a ceiling opening, a cover plate is provided which can be opened and closed to cover the opening, and a ladder can be folded and unfolded on the top surface of the cover plate. In a fixed ladder unit, a pair of left and right brackets and a support arm are respectively attached to the upper surface of the lid plate near its front end, while a pair of left and right brackets and support arms are attached to the left and right side plates of the frame body at intervals in the front and back direction. The supporting metal fittings are attached to the above-mentioned brackets, and the supporting metal fittings and the above-mentioned bracket are connected via link rods, and a gas spring is stretched between the supporting metal fittings located at the rear and the above-mentioned support arm. A folding mechanism for a folding ladder unit that is stretched so that the power can be applied both upward and downward through the dead center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10056485U JPH0350174Y2 (en) | 1985-07-02 | 1985-07-02 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10056485U JPH0350174Y2 (en) | 1985-07-02 | 1985-07-02 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS629630U true JPS629630U (en) | 1987-01-21 |
| JPH0350174Y2 JPH0350174Y2 (en) | 1991-10-25 |
Family
ID=30970505
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10056485U Expired JPH0350174Y2 (en) | 1985-07-02 | 1985-07-02 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0350174Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102587951B1 (en) * | 2023-06-01 | 2023-10-11 | 주식회사한결이엔지 | Folding stair for tanker |
-
1985
- 1985-07-02 JP JP10056485U patent/JPH0350174Y2/ja not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102587951B1 (en) * | 2023-06-01 | 2023-10-11 | 주식회사한결이엔지 | Folding stair for tanker |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0350174Y2 (en) | 1991-10-25 |