JPS61108499U - - Google Patents
Info
- Publication number
- JPS61108499U JPS61108499U JP19207784U JP19207784U JPS61108499U JP S61108499 U JPS61108499 U JP S61108499U JP 19207784 U JP19207784 U JP 19207784U JP 19207784 U JP19207784 U JP 19207784U JP S61108499 U JPS61108499 U JP S61108499U
- Authority
- JP
- Japan
- Prior art keywords
- ladder
- engagement
- hook
- stopper
- upper ladder
- 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
- 210000000078 claw Anatomy 0.000 claims description 4
- 230000001105 regulatory effect Effects 0.000 claims description 3
Landscapes
- Ladders (AREA)
Description
第１図は本考案を適用した上梯子固定装置の側
面図（第３図の―断面拡大図）、第２図は第
１図の矢視部分図、第３図は第１図とは別の状
態を示す第１図と同じ部分の側面図、第４図は２
連梯子の全体正面図、第５図は第４図の矢視図
、第６図は別の実施例の側面部分図である。１…
…下梯子、１ｂ……棧、２……上梯子、１２……
フツク、１３……爪、１５……ストツパー、２０
……カム面、２１……噛合い部、２５……規制突
起。
Figure 1 is a side view (enlarged cross-sectional view of Figure 3) of the upper ladder fixing device to which the present invention is applied, Figure 2 is a partial view taken in the direction of the arrow in Figure 1, and Figure 3 is different from Figure 1. Figure 4 is a side view of the same part as Figure 1 showing the state of 2.
FIG. 5 is an overall front view of the continuous ladder, FIG. 5 is a view taken along the arrow in FIG. 4, and FIG. 6 is a partial side view of another embodiment. 1...
...Lower ladder, 1b...Ran, 2...Upper ladder, 12...
Hook, 13...Claw, 15...Stopper, 20
...Cam surface, 21...meshing portion, 25...regulating protrusion.
Claims (1)
、下梯子の棧に係合するフツクを回動自在に設け
、フツクにはフツク退避動作用の爪を回動自在に
設け、フツクの先端部に下方突出状のストツパー
を設け、爪には上梯子下降時に下梯子の棧に当接
して棧から爪を退避させるカム面を設けると共に
、上記ストツパーに噛合う噛合い部を設け、上梯
子下降時にストツパーと噛合い部の噛合いにより
フツクと爪が一体的に棧から退避する上梯子の固
定装置において、ストツパーあるいは噛合い部の
いずれか一方の部材に噛合い深さ規制突起を設け
、噛合い時に規制突起が他方の部材に係合して噛
合い深さを一定深さ以内に止どめるようにしたこ
とを特徴とする上梯子の固定装置。 The upper ladder is slidably supported on the lower ladder, the upper ladder is rotatably provided with a hook that engages with the rung of the lower ladder, and the hook is rotatably provided with a claw for retracting the hook. A downwardly protruding stopper is provided at the tip of the ladder, and the claw is provided with a cam surface that abuts against the rung of the lower ladder and retracts the claw from the rung when the upper ladder is lowered, and is provided with an engaging portion that engages with the stopper, In an upper ladder fixing device in which the hook and pawl are integrally retracted from the ladder due to the engagement between the stopper and the engagement part when the upper ladder is lowered, an engagement depth regulating protrusion is provided on either the stopper or the engagement part. 1. A fixing device for an upper ladder, characterized in that a regulating protrusion engages with the other member at the time of engagement to keep the depth of engagement within a certain depth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19207784U JPS61108499U (en) | 1984-12-18 | 1984-12-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19207784U JPS61108499U (en) | 1984-12-18 | 1984-12-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61108499U true JPS61108499U (en) | 1986-07-09 |
Family
ID=30749509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19207784U Pending JPS61108499U (en) | 1984-12-18 | 1984-12-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61108499U (en) |
-
1984
- 1984-12-18 JP JP19207784U patent/JPS61108499U/ja active Pending
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