JPH02115900U - - Google Patents
Info
- Publication number
- JPH02115900U JPH02115900U JP2489389U JP2489389U JPH02115900U JP H02115900 U JPH02115900 U JP H02115900U JP 2489389 U JP2489389 U JP 2489389U JP 2489389 U JP2489389 U JP 2489389U JP H02115900 U JPH02115900 U JP H02115900U
- Authority
- JP
- Japan
- Prior art keywords
- ladder
- pulley
- child
- main
- locking 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
- 230000008602 contraction Effects 0.000 claims 1
Landscapes
- Ladders (AREA)
Description
第１図乃至第６図は本考案の実施例を示し、第
１図は第２図の−線矢視断面図、第２図は要
部の一部断面拡大正面図、第３図は全体正面図、
第４図は同右側面図、第５図は第４図−線矢
視断面図、第６図は第３図−線矢視図、第７
図は従来例を示す側面図である。
１……親梯子、２……子梯子、３，４……側杆
、５，６……踏桟、９……上滑車、１７……下滑
車、１９……ロープ、２５……支軸、２７……係
止体、２８……フツク体、３１，３２……ガイド
手段。
1 to 6 show an embodiment of the present invention, FIG. 1 is a sectional view taken along the line - in FIG. Front view,
FIG. 4 is a right side view of the same, FIG.
The figure is a side view showing a conventional example. 1...Main ladder, 2...Sub ladder, 3, 4...Side ladder, 5, 6...Treadle, 9...Upper pulley, 17...Lower pulley, 19...Rope, 25...Spindle , 27... Locking body, 28... Hook body, 31, 32... Guide means.
Claims (1)
を上下動自在に係合し、親梯子１上部に軸支した
上滑車９側にロープ１９の一端を固定し、且つ他
端側を子梯子２下部に軸支した下滑車１７を経て
上滑車９に掛装して、その他端側を牽引操作する
ことで伸縮調整自在とし、子梯子２に、親梯子１
の踏桟５に係脱自在に係合して子梯子２の下方移
動を規制するフツク体２８と、子梯子２を持ち上
げる際に親梯子１の踏桟５に衝当して子梯子２と
親梯子１との相対移動を規制する係止体２７とを
備えた伸縮梯子において、 前記上滑車９を親梯子１の側杆３外側に配置し
、下滑車１７を上滑車９と同側の子梯子２の側杆
３外側に上下動自在に配置し、子梯子２の下部に
フツク体２８と係止体２７とを同軸２５上に回動
自在に支持し、係止体２７と下滑車１７との間に
、下滑車１７の上方移動に伴つて係止体２７を親
梯子１の踏桟５と衝当しない位置に回動案内する
ガイド手段を設けたことを特徴とする伸縮梯子。[Scope of claim for utility model registration] Left and right side bars 3 of the main ladder 1 and left and right side bars 4 of the child ladder 2
One end of the rope 19 is fixed to the upper pulley 9 which is pivotally supported on the upper part of the main ladder 1, and the other end is connected to the upper pulley via the lower pulley 17 which is pivotally supported on the lower part of the secondary ladder 2. 9, and by pulling the other end, the extension and contraction can be adjusted freely.
A hook body 28 that removably engages with the treadle 5 of the main ladder 1 to restrict the downward movement of the child ladder 2; In the telescopic ladder equipped with a locking body 27 that restricts relative movement with the main ladder 1, the upper pulley 9 is arranged outside the side rung 3 of the main ladder 1, and the lower pulley 17 is arranged on the same side as the upper pulley 9. A hook body 28 and a locking body 27 are rotatably supported on the same axis 25 at the bottom of the child ladder 2, and a hook body 28 and a locking body 27 are rotatably supported on the same axis 25 at the bottom of the child ladder 2. 17. A telescopic ladder characterized in that a guide means is provided between the lower pulley 17 and the lower pulley 17 to rotate and guide the locking body 27 to a position where it does not collide with the rung 5 of the main ladder 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2489389U JPH0547276Y2 (en) | 1989-03-04 | 1989-03-04 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2489389U JPH0547276Y2 (en) | 1989-03-04 | 1989-03-04 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02115900U true JPH02115900U (en) | 1990-09-17 |
| JPH0547276Y2 JPH0547276Y2 (en) | 1993-12-13 |
Family
ID=31245140
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2489389U Expired - Lifetime JPH0547276Y2 (en) | 1989-03-04 | 1989-03-04 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0547276Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100949780B1 (en) * | 2009-07-14 | 2010-03-30 | 송일상 | Clamp device for height controllable ladder |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100949772B1 (en) * | 2009-07-14 | 2010-03-30 | 송일상 | Height controllable ladder |
-
1989
- 1989-03-04 JP JP2489389U patent/JPH0547276Y2/ja not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100949780B1 (en) * | 2009-07-14 | 2010-03-30 | 송일상 | Clamp device for height controllable ladder |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0547276Y2 (en) | 1993-12-13 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |