JPH0518443Y2 - - Google Patents
Info
- Publication number
- JPH0518443Y2 JPH0518443Y2 JP1986039908U JP3990886U JPH0518443Y2 JP H0518443 Y2 JPH0518443 Y2 JP H0518443Y2 JP 1986039908 U JP1986039908 U JP 1986039908U JP 3990886 U JP3990886 U JP 3990886U JP H0518443 Y2 JPH0518443 Y2 JP H0518443Y2
- Authority
- JP
- Japan
- Prior art keywords
- scissor
- stairs
- staircase
- type
- frame
- 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 - Lifetime
Links
- 230000001174 ascending effect Effects 0.000 claims description 10
- 238000009434 installation Methods 0.000 description 7
- 230000007246 mechanism Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
Description
【考案の詳細な説明】
（産業上の利用分野）
本考案は、原子力発電所のキヤビテイなどに仮
設されるシザース式仮設階段に関するものであ
る。[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to a scissor-type temporary staircase that is temporarily installed in the cavity of a nuclear power plant.
（従来の技術）
原子力発電所のキヤビテイについて説明する
と、原子力発電プラントの定検時にキヤビテイの
上部フロア（オペレーシヨンフロア）からキヤビ
テイ底に作業員が昇降、さらに機器材を搬出する
ための階段が必要であるが、前記キヤビテイの上
部フロアとキヤビテイ底間の高低差が大きくかつ
キヤビテイ底の狭隘な設置許容スペースなどによ
り、前記階段の設置条件は大きく制限され立直配
置になつている。(Conventional technology) To explain nuclear power plant cavities, stairs are required for workers to ascend and descend from the upper floor (operation floor) of the cavity to the bottom of the cavity during periodic inspections of nuclear power plants, and for transporting equipment. However, due to the large difference in height between the upper floor of the cavity and the bottom of the cavity and the narrow space allowed for installation at the bottom of the cavity, the installation conditions for the stairs are greatly restricted and the stairs are arranged vertically.
また、シザース機構を用いた従来の昇降装置に
は、作業用リフター、搬送用機器などの機材昇降
用リフター等があるが、１〜5m位の昇降揚程で
あつて、長尺の仮設階段には採用されていない。 In addition, conventional lifting devices using scissor mechanisms include work lifters and lifters for lifting equipment such as transportation equipment, but they have a lifting height of about 1 to 5 meters, and are not suitable for long temporary stairs. Not adopted.
（考案が解決しようとする問題点）
キヤビテイに設けられる従来の前記階段は、設
置許容スペース（2.5m2−高さ13m）などの制約
がある狭隘な箇所に設けることになり、キヤビテ
イ側壁部への設置、取外し撤去作業に困難を来
し、また昇降性能が悪いなどの問題点がある。(Problems to be solved by the invention) The conventional stairs installed in the cavity have to be installed in a narrow place with restrictions such as the permissible installation space (2.5 m 2 - 13 m in height), and it is difficult to reach the side wall of the cavity. It is difficult to install, remove, and remove, and there are other problems such as poor lifting and lowering performance.
（問題点の解決手段）
本考案は、前記のような問題点に対処するため
のシザース式仮設階段であつて、シザース連結棒
でＸ状に順次伸縮自在に連設した複数のシザース
柱列間に交互にジグザグ状に固定される昇降階段
と、該昇降階段に着脱自在に装着される手摺とを
組込んでシザース式階段を形成し、該シザース式
階段を、その上部に設けた連結フレームを介して
上部フロアの固定フレームに連結すると共にその
下部に設けた載置フレームを介して下部フロアに
連結したことにより、階段の設置、取外し撤去性
能とともに作業者の昇降および機器材の搬出入性
能を高め前記のような問題点を解消している。(Means for solving the problem) The present invention is a scissor-type temporary staircase to deal with the above-mentioned problems, and is a scissor-type temporary staircase that connects a plurality of scissor column rows that are sequentially extended and contracted in an X shape using scissor connecting rods. A scissor-type staircase is formed by incorporating ascending and descending stairs that are fixed in a zigzag pattern alternately and a handrail that is detachably attached to the ascending and descending stairs, and the scissor-type staircase is connected to a connecting frame provided on the top thereof. By connecting it to the fixed frame on the upper floor through the frame and connecting it to the lower floor through the mounting frame installed at the bottom, it improves the installation, removal and removal performance of stairs, as well as the ability for workers to ascend and descend, and for the loading and unloading of equipment. This solves the problems mentioned above.
（作用）
上部フロアに降り口付き上部固定フレームを突
設し、クレーンなどによつて連結用フレームおよ
び載置フレーム付きのシザース式階段を短縮状態
で下部フロアに吊下するとともに上方へ伸長し連
結用フレームを上部固定フレームに連結して、伸
長されたシザース式階段に手摺を装着することに
より長尺の階段が設置され、該階段は手摺によつ
て補強固定されかつシザース式階段に組込まれた
昇降踏段は手摺付きのジグザグ昇降路となり、安
全に昇降でき機器材の搬出入労力が軽減される。(Function) An upper fixed frame with an exit is provided protruding from the upper floor, and a scissor-type staircase with a connecting frame and a mounting frame is suspended from the lower floor in a shortened state using a crane or the like, and then extended upward and connected. A long staircase was installed by connecting the frame to the upper fixed frame and attaching a handrail to the extended scissor-type staircase, and the staircase was reinforced and fixed by the handrail and incorporated into the scissor-type staircase. The elevator stairs are a zigzag hoistway with handrails, allowing for safe lifting and reducing the labor required to carry equipment in and out.
（実施例）
第１図ないし第６図に本考案の一実施例を示し
ており、図中ａは原子力発電所のキヤビテイ、a1
はキヤビテイａの上部フロア（オペレーシヨンフ
ロア）、a2は下部フロア（キヤビテイ底）であつ
て、上部フロアa1には、第１，２，３，４図に示
すようにアンカ２で基礎プレート１が固設され、
該基礎プレート１上に複数のボルト４で降り口３
ａを有する上部固定フレーム３が着脱可能に突設
されるようになつている。図中５は上部固定フレ
ーム３の支持板、６は補強兼支持フレームであ
る。(Embodiment) An embodiment of the present invention is shown in Figs. 1 to 6, where a is the cavity of a nuclear power plant, and a 1 is the cavity of a nuclear power plant.
is the upper floor (operation floor) of cavity a, a2 is the lower floor (cavity bottom), and upper floor a1 has a foundation plate with anchor 2 as shown in Figures 1, 2, 3, and 4. 1 is fixed,
A drop-off port 3 is installed on the base plate 1 with a plurality of bolts 4.
An upper fixed frame 3 having a shape a is removably protruded. In the figure, 5 is a support plate for the upper fixed frame 3, and 6 is a reinforcing and supporting frame.
さらに、第１，２，５図に示すように多数のシ
ザース柱１０ａ，１０ｂ，１０ｃをシザース連結
棒１１でｘ状に順次に連設した伸縮する複数のシ
ザース柱列１０ａ，１０ｂ，１０ｃを有し昇降踏
段１２が組込まれたシザース式階段１０，１１，
１２を備え、該シザース式階段の上、下部には、
上部固定フレーム３への連結用フレーム１３およ
び下部フロアa2への載置フレーム１４が装着さ
れ、また、手摺１５，１６が装着される構成にな
つている。 Furthermore, as shown in FIGS. 1, 2, and 5, there is a plurality of extensible scissor column rows 10a, 10b, 10c in which a large number of scissor columns 10a, 10b, 10c are successively connected in an x-shape by a scissor connecting rod 11. Scissor-type stairs 10, 11, with built-in lifting steps 12,
12, at the top and bottom of the scissor staircase,
A connecting frame 13 to the upper fixed frame 3 and a mounting frame 14 to the lower floor a2 are attached, and handrails 15 and 16 are attached.
前記シザース式階段１０，１１，１２について
詳述すると、昇降踏段１２は、第１図に示すよう
にシザース柱ごとに傾斜が異なるように配置され
その間に踊場２０が付設されているとともに、第
２図に示すように踊場２０ごとにシザース柱列１
０ａと１０ｂ間、１０ｂと１０ｃ間に交互に配設
されジグザグ昇降路に形成されており、また、各
シザース柱列１０ａ，１０ｂ，１０ｃの両上端は
連結用フレーム１３にピン２１ａ，２２ａで連結
され、各シザース柱列１０ａ，１０ｂ，１０ｃの
両下端は載置フレーム１４にピン２１ｂ，２２ｂ
で連結されているとともに、少くとも前記ピン２
１ａあるいは２２ａ、ピン２１ｂあるいは２２ｂ
が図示左右に移動可能に装着されて、前記シザー
ス式階段１０，１１，１２が図示上下方向に大幅
に伸縮可能になつている。また、前記上部固定フ
レーム３に対する前記連結用フレーム１３の連結
は、適宜の機構によつて着脱可能にかつ確実、強
固に連結される。 The scissor-type stairs 10, 11, and 12 will be described in detail. As shown in FIG. 1 row of scissor pillars for each 20 landings as shown in the figure.
They are arranged alternately between 0a and 10b and between 10b and 10c to form a zigzag hoistway, and both upper ends of each scissor column row 10a, 10b, 10c are connected to the connecting frame 13 with pins 21a, 22a. Both lower ends of each scissor column row 10a, 10b, 10c are attached to the mounting frame 14 with pins 21b, 22b.
and at least the pin 2
1a or 22a, pin 21b or 22b
are mounted so as to be movable left and right in the figure, so that the scissor-type stairs 10, 11, 12 can be expanded and contracted significantly in the vertical direction in the figure. Further, the connection frame 13 is reliably and firmly connected to the upper fixed frame 3 by an appropriate mechanism.
さらにまた、前記上部固定フレーム３、前記シ
ザース式階段１０，１１，１２および各踊場２０
には、それぞれ適宜の機構によつて複数の手摺１
５および１６が着脱可能に装着されるとともに、
前記各手摺１５および１６は相互に連設されて架
設後の階段が補強され、また、シザース柱と手摺
１６間にはチエン手摺１５ａが連設される。 Furthermore, the upper fixed frame 3, the scissor type stairs 10, 11, 12 and each landing 20
has multiple handrails 1 each with an appropriate mechanism.
5 and 16 are removably attached, and
The handrails 15 and 16 are connected to each other to reinforce the stairs after construction, and a chain handrail 15a is installed between the scissor pillar and the handrail 16.
また、少くとも最下部シザース柱間にはストツ
パ２５（伸縮調節型）が連結自在に装着されてお
り、第５，６図に示すように載置フレーム１４に
は吊金具２７が設けられ、連結用フレーム１３に
も吊金具２６が設けられている。 In addition, a stopper 25 (adjustable telescopic type) is attached at least between the lowermost scissor pillars so as to be freely connectable, and as shown in FIGS. The frame 13 is also provided with a hanging fitting 26.
本考案の実施例は、前記のような構成になつて
おりキヤビテイａに設置する場合について説明す
ると、連結用フレーム１３および載置フレーム１
４が装着されているシザース式階段１０，１１，
１２を第６図に示すように大幅に短縮して、クレ
ーンなどによるワイヤ吊り金具３０によつて載置
フレーム１４の吊金具２７，２７を吊持し下部フ
ロアa2（キヤビテイ底）の設置位置に置き、次に
連結用フレーム１３の吊金具２６，２６に吊り変
えて上昇すると、シザース式階段１０，１１，１
２は各シザース連結棒１１により伸長され、上部
フロアa1にボルト４で固着された上部固定フレー
ム３に前記連結用フレーム１３を適宜の手段で強
固、確実に連結し、さらに、上部固定フレーム３
上、さらに伸長されたシザース式階段１０，１
１，１２および各階段２０に手摺１５，１６を装
着する。 The embodiment of the present invention has the above-mentioned configuration, and to explain the case where it is installed in the cavity a, the connecting frame 13 and the mounting frame 1
Scissor type stairs 10, 11, which are equipped with 4
12 is significantly shortened as shown in FIG. 6, and the hanging fittings 27, 27 of the mounting frame 14 are suspended by a wire hanging fitting 30 using a crane or the like, and the installation position is set on the lower floor a2 (cavity bottom). When the scissor-type stairs 10, 11, 1
2 is extended by each scissor connecting rod 11, and connects the connecting frame 13 firmly and reliably by appropriate means to the upper fixed frame 3 fixed to the upper floor a1 with bolts 4, and furthermore, the upper fixed frame 3
Above, further extended scissor stairs 10,1
1, 12 and each staircase 20 are equipped with handrails 15, 16.
さらに、必要に応じ最下段のシザース柱間にス
トツパ２５を連結して載置フレーム１４の浮上り
を防止し下フロアa2上に定置することによつて仮
設階段が架設、設置される。キヤビテイａの上部
フロアa1と下部フロアa2間に設置された前記仮設
階段は、キヤビテイａの側壁に沿つた狭い空間内
で昇降操作などにより設置され、前記手摺１５，
１６の装着により補強、固定されかつシザース柱
列間に組込まれた昇降階段１２は手摺付きのジグ
ザグ昇降路となり、安全、容易に昇降可能であ
る。 Further, if necessary, a temporary staircase is constructed and installed by connecting stoppers 25 between the scissor pillars at the lowest stage to prevent the mounting frame 14 from floating and placing it on the lower floor a2 . The temporary staircase installed between the upper floor A1 and the lower floor A2 of the cavity A is installed by lifting and lowering in a narrow space along the side wall of the cavity A, and the handrail 15,
The ascending/descending stairs 12 reinforced and fixed by mounting the scissor pillars 16 and incorporated between the rows of scissor columns become a zigzag hoistway with a handrail, and can be ascended and descended safely and easily.
設置された前記仮設階段は、逆順序で容易に取
外し撤去される。 The installed temporary staircase can be easily removed and removed in reverse order.
（考案の効果）
このように本考案によるときはシザース連結棒
でＸ状に順次伸縮自在に連結した複数のシザース
柱列間に交互にジグザグ状に固定される昇降階段
と該昇降階段に着脱自在に装着される手摺とを組
込んでシザース式階段を形成し、該シザース式階
段を、その上部に設けた連結フレームを介して上
部フロアの固定フレームに連結すると共にその下
部に設けた載置フレームを介して下部フロアに連
結したものであるから昇降階段はシザース柱列間
に固定されてその取付けを安定させることができ
ると共にシザース式階段は多数のシザース柱列を
シザース連結棒でＸ状に吊り上げ、吊り降すこと
により伸縮され而もその取付けは上部に設けた連
結フレームを上部フロアの固定フレームに連結す
ることにより連結されてその取付けを容易且つ迅
速に遂行することができる等の効果を有する。(Effects of the invention) As described above, according to the present invention, a plurality of scissor column rows are connected in an X-shape in an extensible manner using scissor connecting rods, and the ascending/descending stairs are fixed alternately in a zigzag shape, and the ascending/descending stairs can be freely attached to and detached from the ascending/descending stairs. A scissor-type staircase is formed by incorporating a handrail that is attached to the scissor-type staircase, and the scissor-type staircase is connected to a fixed frame on the upper floor via a connecting frame provided at the top of the scissor-type staircase, and a mounting frame provided at the bottom of the scissor-type staircase. Since the ascending and descending stairs are connected to the lower floor via the scissor pillars, the ascending and descending stairs can be fixed between the rows of scissor pillars to stabilize the installation, and the scissor type stairs have many rows of scissor pillars suspended in an X shape using scissor connecting rods. Although it is expanded and contracted by being suspended, it is connected by connecting the connecting frame provided on the upper part to the fixed frame on the upper floor, so that the installation can be carried out easily and quickly. .
第１図Ａ，Ｂは本考案の一実施例を示す設置状
態の側視図と平面図、第２図Ａ，Ｂは第１図の正
面図と−部分の断面図、第３図Ａ，Ｂは第１
図Ａの上部固定フレーム部分の拡大側視図と平面
図、第４図は第３図Ａの部分の拡大側視図、第
５図Ａ，Ｂはシザース式階段の伸長状態を示す側
視図と平面図、第５図Ｃは第５図Ａの−部分
の断面図、第６図はシザース式階段の短縮状態を
示す側視図である。
a1……上部フロア、a2……下部フロア、３……
上部固定フレーム、３ａ……降り口、１０ａ，１
０ｂ，１０ｃ……シザース柱列、１１……シザー
ス連結棒、１２……昇降踏段、１３……連結用フ
レーム、１４……載置フレーム、１５，１６……
手摺。
Figures 1A and B are a side view and a plan view of an installed state showing an embodiment of the present invention, Figures 2A and B are a front view and a cross-sectional view of the minus part of Figure 1, and Figures 3A and B is the first
An enlarged side view and a plan view of the upper fixed frame part in Figure A, Figure 4 is an enlarged side view of the part in Figure 3 A, and Figures 5 A and B are side views showing the extended state of the scissor type staircase. FIG. 5C is a sectional view of the - portion of FIG. 5A, and FIG. 6 is a side view showing the scissor-type staircase in a shortened state. a 1 ... upper floor, a 2 ... lower floor, 3 ...
Upper fixed frame, 3a...Exit, 10a, 1
0b, 10c... Scissor column row, 11... Scissor connecting rod, 12... Lifting step, 13... Connection frame, 14... Mounting frame, 15, 16...
handrail.
Claims (1)
た複数のシザース柱列間に交互にジグザグ状に固
定される昇降階段と、該昇降階段に着脱自在に装
着される手摺とを組込んでシザース式階段を形成
し、該シザース式階段を、その上部に設けた連結
フレームを介して上部フロアの固定フレームに連
結すると共にその下部に設けた載置フレームを介
して下部フロアに連結したことを特徴とするシザ
ース式仮設階段。 Scissors are constructed by incorporating ascending and descending stairs that are fixed in a zigzag pattern alternately between a plurality of rows of scissor pillars that are extended and contracted sequentially in an X shape using scissor connecting rods, and handrails that are detachably attached to the ascending and descending stairs. The scissor type staircase is connected to a fixed frame of the upper floor via a connecting frame provided at the upper part of the scissor type staircase, and is also connected to the lower floor via a mounting frame provided at the lower part of the scissor type staircase. Scissor-type temporary stairs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986039908U JPH0518443Y2 (en) | 1986-03-20 | 1986-03-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986039908U JPH0518443Y2 (en) | 1986-03-20 | 1986-03-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62154146U JPS62154146U (en) | 1987-09-30 |
| JPH0518443Y2 true JPH0518443Y2 (en) | 1993-05-17 |
Family
ID=30853518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986039908U Expired - Lifetime JPH0518443Y2 (en) | 1986-03-20 | 1986-03-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0518443Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101038226B1 (en) | 2008-10-24 | 2011-06-01 | (주)유진기업 | Workbench for the ferroconcrete barrier steel wire establishment of the atomic reactor and establishment method of the steel wire cable which uses this |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60120149U (en) * | 1984-01-24 | 1985-08-14 | 住金鋼材工業株式会社 | folding suspended stairs |
-
1986
- 1986-03-20 JP JP1986039908U patent/JPH0518443Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62154146U (en) | 1987-09-30 |
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