JPH0352314Y2 - - Google Patents
Info
- Publication number
- JPH0352314Y2 JPH0352314Y2 JP6199085U JP6199085U JPH0352314Y2 JP H0352314 Y2 JPH0352314 Y2 JP H0352314Y2 JP 6199085 U JP6199085 U JP 6199085U JP 6199085 U JP6199085 U JP 6199085U JP H0352314 Y2 JPH0352314 Y2 JP H0352314Y2
- Authority
- JP
- Japan
- Prior art keywords
- ladder
- cylindrical wall
- segments
- landing
- constructed
- 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.)
- Expired
Links
- 230000009194 climbing Effects 0.000 claims description 4
- 238000000034 method Methods 0.000 description 3
- 238000009412 basement excavation Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 208000019901 Anxiety disease Diseases 0.000 description 1
- 230000036506 anxiety Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
Landscapes
- Ladders (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は、潜函工法や深礎工法等によつて構築
される筒状壁体（竪坑）の内部に設ける昇降用梯
子に関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a climbing ladder installed inside a cylindrical wall (vertical shaft) constructed by a submerged box method, a deep foundation method, or the like.
従来この種の梯子としては、たとえば、縄梯子
や簡易に継ぎ足される直立梯子等がある。
Conventional ladders of this type include, for example, rope ladders and upright ladders that can be easily added.
これら縄梯子や直立梯子は、筒状壁体の深部で
掘削作業に従事する作業者が就業時あるいは休
憩、用事等のために筒状壁体の内部を昇降するも
のである。 These rope ladders and upright ladders are used by workers engaged in excavation work deep inside the cylindrical wall to go up and down the interior of the cylindrical wall during work, breaks, errands, etc.
ところで、前述の縄梯子や直立梯子は、筒状壁
体の深部掘削によつて発生する土砂の排出作業や
クレーン作業等の障害にならないように筒状壁体
内部に簡易に設けられたものであつて、筒状壁体
内部で安定に固定されておらず、これら縄梯子ま
たは直立梯子を使用して筒状壁体内部を昇降する
作業者に不安感や疲労感を与えるだけでなく、昇
降する作業者の転落事故につながる危険性をもつ
という問題があつた。
By the way, the above-mentioned rope ladders and upright ladders are simply installed inside the cylindrical wall so as not to obstruct the work of discharging earth and sand caused by deep excavation of the cylindrical wall, crane work, etc. These rope ladders or upright ladders are not stably fixed inside the cylindrical wall, which not only gives workers a sense of anxiety and fatigue when climbing up and down inside the cylindrical wall, but also makes the work of climbing up and down difficult. There was a problem that there was a risk of people falling into accidents.
この考案では、筒状壁体内壁面の上下方向に所
定間隔を隔てた箇所の、前記セグメントを連結す
る連結具に上下の踊場を固定し、これら上下の踊
場間に梯子を架設することで上記問題を解決して
いる。
This invention solves the above problem by fixing the upper and lower landings to connectors that connect the segments at predetermined intervals in the vertical direction of the inner wall surface of the cylindrical wall, and by constructing a ladder between these upper and lower landings. has been resolved.
第１図ないし第３図は本考案の一実施例を示す
図である。
1 to 3 are diagrams showing an embodiment of the present invention.
第１図において符号１は地中に構築された筒状
壁体であり、この筒状壁体１は複数のセグメント
２，２……を互いに連結して構成されている。 In FIG. 1, reference numeral 1 denotes a cylindrical wall constructed underground, and this cylindrical wall 1 is constructed by interconnecting a plurality of segments 2, 2, . . . .
セグメント２には連結具３が設けられており、
この連結具３によつて隣接するセグメント２，２
……は互いに連結されている。上記筒状壁体１内
の上下方向に所定間隔を隔てた箇所の連結具３，
３……に踊場４，４が固定され、これら踊場４，
４間に梯子５が架設されている。踊場４は第２図
に示すように平面視において台形を成し、その下
底両端部には筒状壁体１内壁の方向に突出した連
結部６が形成され、その下面には支持部材７が設
けられ、上面には固定片８が設けられている。連
結部６は、踊場４を筒状壁体１内壁に固定するも
のであり、ボルト・ナツト９によつて前記連結具
３に締結されている。支持部材７は、踊場４を筒
状壁体１内壁の上方に支持するものであり、その
下端部に筒状壁体１内壁と当接する当接片１０が
固定されている。固定片８は梯子５の上端部また
は下端部を踊場４に固定するものである。梯子５
は杆体１１，１１に複数の桟１２，１２……が架
設され、杆体１１の上端部にＬ字状の掛止部１１
ａが形成されているものである。梯子５の下端部
１１ｂはピン１３によつて前記固定片８に回動自
在に軸支され、掛止部１１ａはピン１３によつて
固定片８に連結されている。 The segment 2 is provided with a connector 3,
Adjacent segments 2, 2 by means of this connector 3
...are connected to each other. Connectors 3 located at predetermined intervals in the vertical direction within the cylindrical wall body 1,
The landings 4, 4 are fixed to 3..., and these landings 4,
A ladder 5 is installed between 4. As shown in FIG. 2, the landing 4 has a trapezoidal shape in plan view, and a connecting portion 6 protruding toward the inner wall of the cylindrical wall 1 is formed at both ends of the lower base, and a supporting member 7 is provided on the lower surface of the connecting portion 4. is provided, and a fixing piece 8 is provided on the top surface. The connecting portion 6 fixes the landing 4 to the inner wall of the cylindrical wall 1, and is fastened to the connecting tool 3 with bolts and nuts 9. The support member 7 supports the landing 4 above the inner wall of the cylindrical wall 1, and has a contact piece 10 fixed to its lower end that abuts the inner wall of the cylindrical wall 1. The fixing piece 8 fixes the upper end or the lower end of the ladder 5 to the landing 4. ladder 5
A plurality of crosspieces 12, 12... are installed on the rods 11, 11, and an L-shaped hooking part 11 is attached to the upper end of the rod 11.
a is formed. The lower end portion 11b of the ladder 5 is rotatably supported by the fixed piece 8 by a pin 13, and the hook portion 11a is connected to the fixed piece 8 by the pin 13.
以上の構成から成る梯子５は、掛止部１１ａを
固定片８に連結しているピン１３を外すことによ
つて、梯子５の下端部１１ｂを軸として矢印Ａ・
Ｂ方向に回動させることができる。 By removing the pin 13 connecting the hooking part 11a to the fixing piece 8, the ladder 5 constructed as described above can be constructed by moving the arrow A with the lower end 11b of the ladder 5 as an axis.
It can be rotated in direction B.
上記傾斜梯子の組み立てに際しては、筒状壁体
１を潜函工法によつて構築する場合は、セグメン
ト２を環状に積み上げて筒状壁体１を構築し、筒
状壁体１の底部を掘削しながら順次セグメント２
を筒状壁体１の上部に組み立て、セグメント２を
複数段組み立てる毎に前述の踊場４を設け、その
ようにして設けられた上下の踊場４，４間に梯子
５を架設する。 When assembling the above-mentioned inclined ladder, if the cylindrical wall 1 is constructed by the submerged box construction method, the cylindrical wall 1 is constructed by stacking the segments 2 in a ring shape, and the bottom of the cylindrical wall 1 is excavated. While sequentially segment 2
are assembled on the upper part of the cylindrical wall body 1, the above-mentioned landing 4 is provided every time a plurality of segments 2 are assembled, and a ladder 5 is constructed between the upper and lower landings 4 thus provided.
また、筒状壁体１を深礎工法によつて構築する
場合は、筒状壁体１の底部を掘削しながら順次セ
グメント２を筒状壁体１の下端部に組み立て、セ
グメント２を複数段組み立てる毎に前述の踊場４
を設け、そのようにして設けられた上下の踊場
４，４間に梯子５を架設する。 In addition, when constructing the cylindrical wall 1 by the deep foundation method, the segments 2 are sequentially assembled at the lower end of the cylindrical wall 1 while excavating the bottom of the cylindrical wall 1, and the segments 2 are assembled in multiple stages. Each time you assemble, the above-mentioned landing 4
A ladder 5 is constructed between the upper and lower landings 4, 4 thus provided.
ここで、深礎工法によつて筒状壁体１を構築す
る場合において、セグメント２をクレーン（図示
せず）で吊り下げ、セグメント２を横移動しある
いは位置の微調整をする際に、既架設の梯子５が
セグメント２を吊り下げるワイヤー（図示せず）
に当り、前記クレーン作業の障害となることがあ
る。 Here, when constructing the cylindrical wall 1 using the deep foundation construction method, the segments 2 are suspended by a crane (not shown), and when moving the segments 2 laterally or making fine adjustments to the position, it is necessary to Erection ladder 5 suspends segment 2 from wire (not shown)
This may obstruct the crane work.
この傾斜梯子では、第３図に示すように、適位
置の連結具３に滑車１４を取り付け、梯子５の上
部をワイヤー１５で牽引し、梯子５を矢印Ａ方向
に回動させて前記クレーン作業の障害とならない
ようにすることができる。 In this inclined ladder, as shown in FIG. 3, a pulley 14 is attached to the connector 3 at an appropriate position, the upper part of the ladder 5 is pulled by a wire 15, and the ladder 5 is rotated in the direction of arrow A to perform the crane operation. can be prevented from becoming an obstacle.
かくして、この傾斜梯子を筒状壁体１内壁に設
けることによつて作業者は安心して筒状壁体１内
部を昇降することができる。そして特に、この傾
斜梯子は、架設された梯子５がクレーン作業や土
砂の排出作業等の障害になる場合には、架設され
た梯子５を回動させて前記作業の障害とならない
ようにすることができる。 Thus, by providing this inclined ladder on the inner wall of the cylindrical wall 1, the operator can move up and down inside the cylindrical wall 1 with peace of mind. In particular, when the erected ladder 5 becomes an obstacle to crane work, earth and sand discharge work, etc., the erected ladder 5 can be rotated so as not to become an hindrance to the work. I can do it.
第４図及び第５図はこの考案の更に他の実施例
を示す図である。 FIGS. 4 and 5 are diagrams showing still other embodiments of this invention.
第４図に示す実施例は、前述の連結具３に踊場
４を固定し、この踊場４の鉛直上方に所定間隔を
隔てた箇所の連結具３に固定具１６を固定し、こ
の固定具１６と踊場４間に梯子５を架設したもの
である。 In the embodiment shown in FIG. 4, a landing 4 is fixed to the above-mentioned connector 3, and a fixture 16 is fixed to the connector 3 at a predetermined distance vertically above the landing 4. A ladder 5 is constructed between the landing area 4 and the landing area 4.
第５図に示す実施例は、固定片１７と支持片１
８とを有する踊場１９，１９を第２図に示す実施
例と同様に筒状壁体１内壁に設け、これら踊場１
９，１９間に梯子２０を架設したものである。こ
の梯子２０は、その上端部にタラツプ２１が形成
されており、タラツプ２１の端部２１ａは前記支
持片１８によつて支持され、梯子の下端部は前記
固定片１７とピン２２によつて回動自在に軸支さ
れている。 The embodiment shown in FIG. 5 has a fixed piece 17 and a support piece 1.
Similar to the embodiment shown in FIG. 2, landings 19, 19 having
A ladder 20 is installed between 9 and 19. This ladder 20 has a ramp 21 formed at its upper end, the end 21a of the ramp 21 is supported by the support piece 18, and the lower end of the ladder is rotated by the fixing piece 17 and pin 22. It is pivoted for free movement.
以上説明したように、この考案による傾斜梯子
では、筒状壁体内部に簡易に設けられる縄梯子や
直立梯子に比べてかなり安定に筒状壁体内壁に固
定されているので、作業者に不安感や疲労感を与
えることなく筒状壁体内部を昇降させることがで
き、作業者の転落事故を未然に防ぐことができる
という効果を得ることができる。
As explained above, the inclined ladder of this invention is fixed to the inner wall of the cylindrical wall much more stably than a rope ladder or an upright ladder that is easily installed inside the cylindrical wall, so workers feel uneasy. The interior of the cylindrical wall body can be raised and lowered without causing a feeling of fatigue or fatigue, and it is possible to obtain the effect that falling accidents of the worker can be prevented.
第１図はこの考案の一実施例を示す斜視図、第
２図は平面図、第３図は側面図であり、第４図は
その他の実施例を示す斜視図、第５図はその他の
実施例を示す平面図、第６図はその側面図であ
る。
１……筒状壁体、２……セグメント、３……連
結具、４……踊場、５……梯子。
Fig. 1 is a perspective view showing one embodiment of this invention, Fig. 2 is a plan view, Fig. 3 is a side view, Fig. 4 is a perspective view showing another embodiment, and Fig. 5 is a perspective view of another embodiment. A plan view showing the embodiment, and FIG. 6 is a side view thereof. 1... Cylindrical wall body, 2... Segment, 3... Connector, 4... Landing, 5... Ladder.
Claims (1)
筒状壁体内に設置される昇降用梯子であつて、前
記筒状壁体内面の上下方向に所定間隔を隔てた箇
所の前記セグメントを連結する連結具に上下の踊
場を固定し、これら上下の踊場間に梯子を架設し
てなる傾斜梯子。 A climbing ladder installed in a cylindrical wall configured by connecting a plurality of segments to each other, and a connecting tool that connects the segments at predetermined intervals in the vertical direction on the inner surface of the cylindrical wall. A sloped ladder is made by fixing the upper and lower landings to the ground and installing a ladder between the upper and lower landings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6199085U JPH0352314Y2 (en) | 1985-04-25 | 1985-04-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6199085U JPH0352314Y2 (en) | 1985-04-25 | 1985-04-25 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61177199U JPS61177199U (en) | 1986-11-05 |
| JPH0352314Y2 true JPH0352314Y2 (en) | 1991-11-12 |
Family
ID=30590775
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6199085U Expired JPH0352314Y2 (en) | 1985-04-25 | 1985-04-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0352314Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102017105567A1 (en) * | 2017-03-15 | 2018-09-20 | Klaus Stewering GmbH & Co. KG, Bauunternehmung | Ladder system for trench shoring |
-
1985
- 1985-04-25 JP JP6199085U patent/JPH0352314Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61177199U (en) | 1986-11-05 |
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