JPH0443532Y2 - - Google Patents
Info
- Publication number
- JPH0443532Y2 JPH0443532Y2 JP8611588U JP8611588U JPH0443532Y2 JP H0443532 Y2 JPH0443532 Y2 JP H0443532Y2 JP 8611588 U JP8611588 U JP 8611588U JP 8611588 U JP8611588 U JP 8611588U JP H0443532 Y2 JPH0443532 Y2 JP H0443532Y2
- Authority
- JP
- Japan
- Prior art keywords
- riser
- tread
- plate part
- tongue piece
- steel
- 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
- 210000002105 tongue Anatomy 0.000 claims description 32
- 229910000831 Steel Inorganic materials 0.000 claims description 31
- 239000010959 steel Substances 0.000 claims description 31
- 238000005452 bending Methods 0.000 claims description 18
- 238000003466 welding Methods 0.000 description 12
- 239000000463 material Substances 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000013016 damping Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910000576 Laminated steel Inorganic materials 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は、踏板部と蹴込み板部とがジグザグ状
に連続した鉄骨階段に関するものである。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a steel staircase in which a tread portion and a riser portion are continuous in a zigzag shape.
この種の鉄骨階段としては、踏板部および蹴込
み板部の両端を一対のさゝら桁に溶接にて固着す
ると共に、踏板と蹴込み板部を溶接等にて互いに
固着して構成したものや踏板部と蹴込み板部とを
鋼板で一体に折曲形成し、これを一対のさゝら桁
に溶接で固着して構成したものが知られている。
This type of steel staircase is constructed by welding both ends of the tread and riser to a pair of string girders, and by welding the tread and riser to each other. Also known is a structure in which the tread plate part and the riser plate part are integrally bent from a steel plate, and this is fixed to a pair of string girders by welding.
上記の従来例では、いずれも、一対のさゝら桁
と踏板部および蹴込み板部とが夫々別の材料鋼板
で製作されているため、構成部品点数が多く、材
料鋼板の管理が面倒であり、しかも踏板部および
蹴込み板部の両端の全長もしくは構造耐力上必要
な長さの部分をさゝら桁と溶接しているため、溶
接作業が煩雑で製造能率が低く、製造コストが高
く付いた。また、溶接作業が多いため、溶接技術
者の技能レベルの確保や溶接箇所の信頼性の確保
などにも問題があつた。
In all of the above conventional examples, the pair of stringers, the tread plate part, and the riser plate part are each made of different steel plates, so there are a large number of component parts, and the management of the steel plates is troublesome. Moreover, since the entire length of both ends of the tread and riser sections or the length necessary for structural strength is welded to the girder, welding work is complicated, manufacturing efficiency is low, and manufacturing costs are high. I got it. Additionally, since there was a lot of welding work involved, there were problems in ensuring the skill level of welding engineers and ensuring the reliability of welding locations.
上記の従来欠点に鑑み、本考案は、溶接箇所を
皆無もしくは極力少なくして鉄骨階段を容易かつ
安価に製造できるようにしようとするものであ
る。 In view of the above-mentioned conventional drawbacks, the present invention attempts to manufacture steel-frame stairs easily and inexpensively by eliminating or minimizing the number of welding points.
〔課題を解決するための手段〕
上記の目的を達成するために、本考案が講じた
技術的手段は、次の通りである。即ち、一枚の鋼
板を互いに平行な折曲げ線からジグザグ状に折り
曲げて複数の踏板部と蹴込み板部とを形成し、各
踏板部の両端と蹴込み板部の両端には、前記折曲
げ線の延長上に切込みを入れて作られた舌片を設
け、踏板部端部の舌片と蹴込み板部端部の舌片と
を前記折曲げ線と直角な折曲げ線から互いに反対
方向へ直角に曲げる。この際、蹴込み板部が垂直
より少し前に倒して「転び」を与えられることに
より一部が重なり合つた状態に折り曲げられ。そ
の舌片の重なり合つた部分を連結して、一対の
さゝら桁を形成するのである。[Means for Solving the Problems] In order to achieve the above object, the technical means taken by the present invention are as follows. That is, a single steel plate is bent in a zigzag shape along bending lines parallel to each other to form a plurality of tread plate parts and riser plate parts, and both ends of each tread plate part and both ends of the riser plate part are provided with the folded parts. A tongue piece made by making a cut is provided on an extension of the bending line, and the tongue piece at the end of the tread plate part and the tongue piece at the end of the riser plate part are opposite to each other from a bending line perpendicular to the bending line. Bend at right angles to the direction. At this time, the risers were tilted slightly forward from the vertical position and were given a ``tumble'', causing them to partially overlap. The overlapping parts of the tongues are connected to form a pair of stringers.
上記の構成によれば、踏板部端部の舌片と蹴込
み板部端部の舌片とを互いに反対方向へ直角に折
り曲げるので、さゝら桁と踏板部および蹴込み板
部とを一枚の鋼板によつて構成することができ
る。
According to the above structure, the tongue piece at the end of the tread plate part and the tongue piece at the end part of the riser plate part are bent at right angles in opposite directions, so that the girder, the tread plate part, and the riser plate part are aligned. It can be constructed from two steel plates.
踏板部とその両端の舌片、蹴込み板部とその両
端の舌片は、いずれも、折り曲げ加工されている
だけであり、舌片同士の重なり合つた部分を連結
するだけであるから、溶接箇所を皆無か、著しく
少なくすることができる。 The tread part and the tongue pieces at both ends of the tread, and the riser plate part and the tongue pieces at both ends thereof are all simply bent, and only the overlapping parts of the tongue pieces are connected, so welding is not required. The number of locations can be eliminated or significantly reduced.
舌片の重なり合つた部分を連結する手段として
は、スポツト溶接、リベツト止め、ビスやボル
ト、又はカシメ、金属用接着剤による接着等を採
用できる。鋼板としては、平滑な鋼板や縞鋼板の
他、いわゆる制振鋼板を採用してもよい。 As means for connecting the overlapping portions of the tongues, spot welding, riveting, screws, bolts, caulking, adhesion with metal adhesive, etc. can be employed. As the steel plate, in addition to a smooth steel plate or a striped steel plate, a so-called vibration damping steel plate may be used.
以下、本考案の実施例を図面に基づいて説明す
る。
Hereinafter, embodiments of the present invention will be described based on the drawings.
第１図は本考案に係る鉄骨階段の一例を示す。
図において、１，１は一対のさゝら桁、２は複数
の踏板部３……および蹴込み板部４……よりなる
段床であり、これら１，１，２は一枚の鋼板によ
つて作製されている。 FIG. 1 shows an example of a steel staircase according to the present invention.
In the figure, 1, 1 is a pair of stringers, 2 is a step bed consisting of a plurality of tread parts 3... and riser board parts 4... These 1, 1, 2 are made of a single steel plate. It is made by hand.
第２図は前記鉄骨階段を製造するための材料鋼
板を示す。第２図において、ａ……，ｂ……は踏
板部３および蹴込み板部４を形成するための互い
に平行な折曲げ線、Ｌは段床２の幅（階段幅）、
l1は踏板部３の前後幅、l2は蹴込み板部４の上下
幅（蹴上げ寸法）を示す。各踏板部３の両端と蹴
込み板部４の両端には、前記折曲げ線ａ……，ｂ
……の延長上に切込みｃ……を入れて作られた舌
片５……，６……を設けてある。ｄ……は舌片５
……と踏板部３……との折曲げ線、ｅ……は舌片
６……と蹴込み板部４……との折曲げ線を示し、
これらｄ……，ｅ……は前記折曲げ線ａ……，ｂ
……に対して直角である。二点鎖線で示した部分
ｆ……，ｇ……は舌片５……，６……の重ね代で
ある。l3は蹴込み板部４の「転び」に対応する寸
法を示す。 FIG. 2 shows a material steel plate for manufacturing the steel staircase. In Fig. 2, a..., b... are mutually parallel bending lines for forming the tread part 3 and the riser board part 4, L is the width of the step floor 2 (stair width),
l 1 indicates the longitudinal width of the tread plate portion 3, and l 2 indicates the vertical width (riser dimension) of the riser plate portion 4. At both ends of each tread portion 3 and at both ends of the riser board portion 4, the bending lines a..., b
Tongue pieces 5..., 6... made by making cuts c... on the extensions of... are provided. d... is tongue piece 5
. . . and the tread portion 3 . . . . The bending line between the tongue piece 6 .
These d..., e... are the bending lines a..., b
It is perpendicular to... The portions f..., g... shown by two-dot chain lines are the overlapping allowances of the tongue pieces 5..., 6.... l 3 indicates a dimension corresponding to the “fall” of the riser plate portion 4.
上記の材料鋼板を用いることにより、次のよう
にして前記鉄骨階段を製造することができる。 By using the above material steel plate, the steel frame staircase can be manufactured in the following manner.
先ず、第３図に示すように、折曲げ線ａ……が
出隅状となり、折曲げ線ｂ……が入隅状となるよ
うに折曲げ線ａ……，ｂ……からジグザグ状に折
り曲げて複数の踏板部３……と蹴込み板部４……
とを形成する。踏板部３と蹴込み板部４とは、蹴
込み板部４……に所定の「転び」を有せしめるた
めに、互いに鋭角をなすように折り曲げておく。 First, as shown in Fig. 3, bend lines a..., b... in a zigzag shape so that bend line a... has an out corner shape and bend line b... has an inside corner shape. By bending, a plurality of tread portions 3... and riser plate portions 4...
and form. The tread part 3 and the riser board part 4 are bent to form an acute angle with each other in order to give the riser board part 4 a predetermined "fall".
しかる後、舌片５……，６……を折曲げ線ｄ…
…，ｅ……から互いに反対方向へ直角に且つ一部
が重なり合つた状態に折り曲げる。即ち、舌片５
……を折曲げ線ｄ……から踏板部３……の表面側
（又は裏面側）へ直角に折り曲げ、舌片６……を
折曲げ線ｅ……から蹴込み板部４……の裏面側
（又は表面側）へ直角に折り曲げる。そして、隣
接する舌片５……，６……の一部を互いに重ね合
わせる。 After that, bend the tongue pieces 5..., 6... along the line d...
..., e... are bent at right angles in opposite directions to each other so that they partially overlap. That is, tongue piece 5
... from the bending line d.... to the front side (or back side) of the tread plate part 3...., and bend the tongue piece 6... from the bending line e...... to the back side of the riser plate part 4... Fold it at right angles to the side (or front side). Then, parts of the adjacent tongue pieces 5..., 6... are overlapped with each other.
次いで、舌片５……，６……の重なり合つた部
分をスポツト溶接Ｗ、リベツト止め、ビスやボル
ト、又はカシメ、金属用接着剤による接着等々の
固着手段により互いに連結する。 Next, the overlapping portions of the tongues 5..., 6... are connected to each other by fixing means such as spot welding W, riveting, screws, bolts, caulking, adhesion with metal adhesive, and the like.
しかる後、第３図に一点鎖線Ｘ……で示すよう
に、舌片５……，６……の上下両端側を直線状に
切断して第４図に示すように、一対のさゝら桁
１，１を形成するのである。 Thereafter, as shown in FIG. 3 by the dashed line It forms the digits 1,1.
第５図、第６図は本考案の別実施例を示す。こ
の実施例は、第５図に示すように、踏板部３……
両端の舌片５……、蹴込み板部４……両端の舌片
６……を、予め、さゝら桁１，１を形成するに必
要な形状（さゝら桁１，１を展開した形状）に切
断しておき、舌片５……を折曲げ線ｄ……から踏
板部３……の表面側（又は裏面側）へ直角に折り
曲げ、舌片６……を折曲げ線ｅ……から蹴込み板
部４……の裏面側（又は表面側）へ直角に折り曲
げ、隣接する舌片５……，６……の重なり合つた
部分を前記と同様な固着手段で連結して一対の
さゝら桁１，１を形成した点に特徴がある。その
他の構成は先の実施例と同じであるため説明を省
く。 5 and 6 show another embodiment of the present invention. In this embodiment, as shown in FIG. 5, the tread portion 3...
The tongue pieces 5 at both ends..., the riser plate part 4...the tongue pieces 6 at both ends are shaped in advance to form the shapes necessary to form the side girders 1,1 (the side girders 1,1 are expanded). The tongue piece 5... is cut at a right angle from the bending line d... to the front side (or back side) of the tread portion 3..., and the tongue piece 6... is cut along the bending line e. . . . by bending it at right angles to the back side (or front side) of the riser plate portion 4 . . . and connecting the overlapping portions of the adjacent tongue pieces 5 . It is distinctive in that a pair of stringers 1, 1 are formed. The other configurations are the same as those in the previous embodiment, so explanations will be omitted.
尚、上記各実施例において、材料鋼板として
は、所望の板厚（必要とする強度が確保される限
り任意に設定できる。例えば、2.3〜3.2ｍ程度に
設定して軽量化を図ることができる。）の、平滑
な鋼板や縞鋼板の他、制振鋼板（２枚の鋼板間に
粘弾性体層を設けて振動抑制機能を有せしめた積
層構造の鋼板）を使用してもよい。 In each of the above embodiments, the material steel plate may have a desired thickness (as long as the required strength is ensured, it can be set arbitrarily. For example, it can be set to about 2.3 to 3.2 m to reduce weight. ), vibration-damping steel plates (laminated steel plates with a vibration-suppressing function by providing a viscoelastic layer between two steel plates) may be used in addition to smooth steel plates and striped steel plates.
本考案は、上述した構成よりなるから、次の効
果を奏し得るのである。
Since the present invention has the above-described configuration, it can achieve the following effects.
即ち、一対のさゝら桁と踏板部および蹴込み板
部とを一枚の鋼板によつて作製できるため、構成
部品点数が少なくて済み、材料鋼板の管理も容易
であり、しかも踏板部とその両端の舌片、蹴込み
板部とその両端の舌片は、いずれも、折り曲げ加
工されているだけであり、舌片同士の重なり合つ
た部分を連結するだけであるから、溶接箇所を皆
無か著しく少なくすることができ、これらの結
果、鉄骨階段を容易かつ安価に製造できるのであ
る。 In other words, since the pair of stringers, the tread plate part, and the riser plate part can be made from a single sheet of steel, the number of component parts can be reduced, and the material steel plates can be easily managed. The tongue pieces at both ends, the riser plate part, and the tongue pieces at both ends are all simply bent, and only the overlapping parts of the tongue pieces are connected, so there are no welding points. As a result, steel staircases can be manufactured easily and inexpensively.
第１図乃至第４図は本考案の一実施例を示し、
第１図は鉄骨階段の概略斜視図、第２図は材料鋼
板の平面図、第３図と第４図は製造途中の状態を
示す斜視図である。第５図と第６図は本考案の別
実施例を示し、第５図は材料鋼板の平面図、第６
図は製造途中の状態を示す斜視図である。
１……さゝら桁、３……踏板部、４……蹴込み
板部、５，６……舌片、ａ，ｂ，ｄ，ｅ……折曲
げ線、ｃ……切込み。
1 to 4 show an embodiment of the present invention,
FIG. 1 is a schematic perspective view of a steel frame staircase, FIG. 2 is a plan view of a material steel plate, and FIGS. 3 and 4 are perspective views showing a state in the middle of manufacturing. 5 and 6 show another embodiment of the present invention, FIG. 5 is a plan view of the material steel plate, and FIG. 6 is a plan view of the material steel plate.
The figure is a perspective view showing a state in the middle of manufacturing. 1...Silver girder, 3...Tread plate part, 4...Riser plate part, 5, 6...Tang piece, a, b, d, e...Bending line, c...Notch.
Claims (1)
グ状に折り曲げて複数の踏板部と蹴込み板部とを
形成し、各踏板部の両端と蹴込み板部の両端に
は、前記折曲げ線の延長上に切込みを入れて作ら
れた舌片を設け、踏板部端部の舌片と蹴込み板部
端部の舌片とを前記折曲げ線と直角な折曲げ線か
ら互いに反対方向へ直角に且つ一部が重なり合つ
た状態に折り曲げると共に、舌片の重なり合つた
部分を連結して、一対のさゝら桁を形成してある
ことを特徴とする鉄骨階段。 A single steel plate is bent in a zigzag shape along bending lines parallel to each other to form a plurality of tread plate parts and riser plate parts. A tongue piece made by making a notch is provided on an extension of the tread plate part, and a tongue piece at the end of the tread plate part and a tongue piece at the end of the riser plate part are moved in opposite directions from a bending line perpendicular to the bending line. A steel staircase characterized in that the tongues are bent at right angles and partially overlapped, and the overlapping parts of the tongues are connected to form a pair of stringers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8611588U JPH0443532Y2 (en) | 1988-06-28 | 1988-06-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8611588U JPH0443532Y2 (en) | 1988-06-28 | 1988-06-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH029628U JPH029628U (en) | 1990-01-22 |
| JPH0443532Y2 true JPH0443532Y2 (en) | 1992-10-14 |
Family
ID=31310759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8611588U Expired JPH0443532Y2 (en) | 1988-06-28 | 1988-06-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0443532Y2 (en) |
-
1988
- 1988-06-28 JP JP8611588U patent/JPH0443532Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH029628U (en) | 1990-01-22 |
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