JPS6441600U - - Google Patents
Info
- Publication number
- JPS6441600U JPS6441600U JP13516587U JP13516587U JPS6441600U JP S6441600 U JPS6441600 U JP S6441600U JP 13516587 U JP13516587 U JP 13516587U JP 13516587 U JP13516587 U JP 13516587U JP S6441600 U JPS6441600 U JP S6441600U
- Authority
- JP
- Japan
- Prior art keywords
- ladder
- main body
- members
- spring
- ladder main
- 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
- 238000010586 diagram Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Landscapes
- Ladders (AREA)
Description
第１図は本考案に係る第１実施例の正面図、第
２図は第１図中−線に沿う矢視断面図、第３
図は伸長手段の正面図、第４図、第５図は第３図
中−線、−線に沿う矢視断面図、第６図
及び第７図は第１実施例の動作説明図であつて、
第６図は梯子本体が縮んだ状態を示し、第７図は
梯子本体が伸びた状態を示す。第８図は本考案の
第２実施例の正面図、第９図は第８図中−線
に沿う矢視断面図、第１０図及び第１１図は第２
実施例の動作説明図であつて、第１０図は梯子本
体が縮んだ状態を示し、第１１図は梯子本体が伸
びた状態を示す。第１２図は伸長手段の変形例を
示す要部正面図である。
１０……梯子本体、１１〜１３……梯子部材、
２０……牽引部材としてのワイヤ、３０……伸長
手段、３７……定出力ばね、４０……ロツク手段
。
FIG. 1 is a front view of the first embodiment of the present invention, FIG. 2 is a sectional view taken along the line - in FIG. 1, and FIG.
4 and 5 are cross-sectional views taken along lines - and - in FIG. 3, and FIGS. 6 and 7 are explanatory diagrams of the operation of the first embodiment. hand,
FIG. 6 shows the ladder main body in a retracted state, and FIG. 7 shows the ladder main body in an extended state. FIG. 8 is a front view of the second embodiment of the present invention, FIG. 9 is a sectional view taken along the line - in FIG. 8, and FIGS.
FIG. 10 shows a state in which the ladder main body is contracted, and FIG. 11 shows a state in which the ladder main body is extended. FIG. 12 is a front view of main parts showing a modification of the stretching means. 10...Ladder main body, 11-13...Ladder member,
20... Wire as a traction member, 30... Extension means, 37... Constant force spring, 40... Locking means.
Claims (1)
子部材の相対移動により伸縮可能とされた梯子本
体と、前記複数の梯子部材間に一側に牽引される
と梯子本体が伸びるとともに他側に牽引されると
梯子本体が縮むよう連結された牽引部材と、この
牽引部材を前記梯子本体が伸びるよう付勢するば
ねを有する伸長手段と、前記梯子部材の縮む方向
の相対移動を阻止可能とするロツク手段とを備え
たことを特徴とする伸縮式梯子。 (2) 実用新案登録請求の範囲第１項において、
前記ばねは、定出力ばねであることを特徴とする
伸縮式梯子。[Claims for Utility Model Registration] (1) A ladder main body that has a plurality of ladder members and is expandable and retractable by relative movement of these ladder members, and when pulled to one side between the plurality of ladder members, the ladder main body a traction member connected so that the ladder main body contracts when the ladder main body is extended and pulled to the other side; an extension means having a spring that biases the traction member so that the ladder main body extends; and a relative member in the direction in which the ladder member contracts. A telescoping ladder characterized by comprising a locking means capable of preventing movement. (2) In paragraph 1 of the claims for utility model registration,
A telescoping ladder, wherein the spring is a constant force spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13516587U JPH0520878Y2 (en) | 1987-09-03 | 1987-09-03 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13516587U JPH0520878Y2 (en) | 1987-09-03 | 1987-09-03 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6441600U true JPS6441600U (en) | 1989-03-13 |
| JPH0520878Y2 JPH0520878Y2 (en) | 1993-05-28 |
Family
ID=31394551
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13516587U Expired - Lifetime JPH0520878Y2 (en) | 1987-09-03 | 1987-09-03 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0520878Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7729503B2 (en) | 2005-07-28 | 2010-06-01 | Acoustic Design, Inc. | Armored voice coil assembly for use in high power loudspeaker applications |
-
1987
- 1987-09-03 JP JP13516587U patent/JPH0520878Y2/ja not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7729503B2 (en) | 2005-07-28 | 2010-06-01 | Acoustic Design, Inc. | Armored voice coil assembly for use in high power loudspeaker applications |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0520878Y2 (en) | 1993-05-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS6015718Y2 (en) | Casing for vehicle seat belt retractor | |
| JPS6441600U (en) | ||
| JPS61176047U (en) | ||
| JPS6159151U (en) | ||
| JPS6277813U (en) | ||
| JPS63140002U (en) | ||
| JPS60195440U (en) | extension mast | |
| JPH0213783U (en) | ||
| JPH02149339U (en) | ||
| JPS624975U (en) | ||
| JPH0332260U (en) | ||
| JPS6414401U (en) | ||
| JPS6152918U (en) | ||
| JPH02124019U (en) | ||
| JPS6247657U (en) | ||
| JPS6190604U (en) | ||
| JPH0294891U (en) | ||
| JPS5910365U (en) | Transfer equipment for construction machinery, etc. | |
| JPS59147901U (en) | Telescopic pipe device | |
| JPS6125772U (en) | fishing rod | |
| JPH0291782U (en) | ||
| JPS61198393U (en) | ||
| JPS6073639U (en) | 2nd floor bus | |
| JPS63161501U (en) | ||
| JPH02124862U (en) |