JPH04166546A - Extrusion molded stair and manufacture thereof - Google Patents
Extrusion molded stair and manufacture thereofInfo
- Publication number
- JPH04166546A JPH04166546A JP2291342A JP29134290A JPH04166546A JP H04166546 A JPH04166546 A JP H04166546A JP 2291342 A JP2291342 A JP 2291342A JP 29134290 A JP29134290 A JP 29134290A JP H04166546 A JPH04166546 A JP H04166546A
- Authority
- JP
- Japan
- Prior art keywords
- board
- tread
- extrusion
- stair
- holes
- 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
- 238000001125 extrusion Methods 0.000 title claims abstract description 20
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 14
- 238000000034 method Methods 0.000 claims abstract description 7
- 230000003014 reinforcing effect Effects 0.000 claims description 11
- 239000004567 concrete Substances 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 8
- 239000000835 fiber Substances 0.000 claims description 7
- 230000000630 rising effect Effects 0.000 claims description 4
- 229920003002 synthetic resin Polymers 0.000 claims description 4
- 239000000057 synthetic resin Substances 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 2
- 238000005520 cutting process Methods 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000005336 cracking Methods 0.000 description 1
- 239000011381 foam concrete Substances 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Landscapes
- Steps, Ramps, And Handrails (AREA)
- Press-Shaping Or Shaping Using Conveyers (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
この発明は、硬化性踏板材料を押出成形すると共に、各
部を補強することを目的とした押出成形踏段及びその製
造方法に関する。DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to an extrusion-molded step for the purpose of extrusion-molding a curable tread material and reinforcing each part thereof, and a method for manufacturing the same.
（従来の技術）
従来、成形踏段は、硬化性踏板材料を型に入れて、各個
に製造していた。BACKGROUND OF THE INVENTION Traditionally, molded steps have been individually manufactured by placing curable tread material into molds.
（発明により解決すべき課題）
前記のようなバッチ式製造方法においては、製造能率が
悪いのみならず、人力を多用するので、重労働になる問
題点があった。そこで押出成形についても考えられるが
、ささら桁と踏段との連結部を同時成形することが困難
であった。(Problems to be Solved by the Invention) The batch-type manufacturing method as described above not only has poor manufacturing efficiency, but also requires heavy labor due to heavy labor. Therefore, extrusion molding could be considered, but it was difficult to mold the joints between the stringers and steps at the same time.
（課題を解決する為の手段）
然るにこの発明は、押出成形の際に貫通孔を設け、この
貫通孔にナツトを嵌挿固定することにょリ、前記従来の
問題点を解決したのである。(Means for Solving the Problems) However, the present invention solves the above-mentioned conventional problems by providing a through hole during extrusion molding and inserting and fixing a nut into the through hole.
即ちこの発明は、平板状の踏板と、該踏板の一側より立
上るけ込み板とを押出成形し、前記踏板の前部及び後部
に設けた貫通孔の両側端面部へナツトを埋設したことを
特徴とする押出成形踏段である。また、ナツトは筒状て
あって、踏板の前部及び後部へ、前記踏板の前縁と平行
に設けた貫通孔内両端に近接して嵌入固定（例えば接着
剤使用）したものである。That is, the present invention includes extrusion molding a flat step board and a recessed board rising from one side of the step board, and embedding nuts in both end surfaces of through holes provided at the front and rear parts of the step board. It is an extrusion molded step characterized by: Further, the nuts are cylindrical and are fitted and fixed (for example, by using adhesive) into the front and rear parts of the treadboard in close proximity to both ends of through holes provided parallel to the front edge of the treadboard.
次に製造方法の発明は、平板状の踏板と、該踏板の一側
より立上るけ込み板との側面形状のノズルより踏段材料
を押し出すと共に、補強手段を施し、前記踏板の左右両
端部へ貫通孔を設け、前記。Next, the invention of the manufacturing method is to extrude the step material from a side-shaped nozzle of a flat tread and a recessed board that rises from one side of the tread, and to apply reinforcing means to both the left and right ends of the tread. A through hole is provided as described above.
踏板の貫通孔の両端部へ筒状ナツトを嵌入固定すること
を特徴とした押出成形踏段の製造方法である。また、踏
板材料をファイバーコンクリート、合成樹脂コンクリー
ト又は軽量コンクリート（軽量骨材入り又は発泡コンク
リート）としたものである。次に、補強手段は、鉄筋を
埋設すると共に、貫通孔設置部の肉厚を大きくしたもの
である。This is a method of manufacturing an extrusion molded step characterized by fitting and fixing cylindrical nuts into both ends of a through hole of a step board. In addition, the tread material is fiber concrete, synthetic resin concrete, or lightweight concrete (lightweight aggregate-containing or foamed concrete). Next, the reinforcing means includes embedding reinforcing bars and increasing the thickness of the through hole installation portion.
前記のように、この発明の押出成形踏段は、両側端面に
ナツト筒を同一中心線上に埋設したので、この踏段をボ
ルトによりささら桁に締付ければ、堅固に固定すること
ができる。As mentioned above, the extrusion-molded step of the present invention has nut tubes embedded in both end faces on the same center line, so that the step can be firmly fixed by tightening it to the stringer with bolts.
また、この発明の方法によれば、連続、かつ全自動の押
出成形か可能となり、同一品質の踏段を連続的に多量生
産することかできる。Further, according to the method of the present invention, continuous and fully automatic extrusion molding is possible, and steps of the same quality can be continuously produced in large quantities.
（作 用）
この発明は、踏段に設けた貫通孔の両端部へナツトを嵌
入固定（接着固定）したので、同一貫通孔に嵌入したナ
ツトは同一中心線上に位置することになり、ボルトによ
る締付時に締付力の方向を正確に対応させることかでき
る。(Function) In this invention, nuts are fitted and fixed (adhesively fixed) at both ends of a through hole provided in a step, so nuts fitted into the same through hole are located on the same center line, and the bolts can be tightened. It is possible to accurately match the direction of the tightening force when attaching.
また、押出成形時に貫通孔を設けるので、方向が一定し
、容易に同一形状を確保することができる。貫通孔の断
面形状を角形にすれば、外形角ナツトの回り止めになる
。押出成形の踏段は使用材料の性質上、吸音性かあるの
で、使用時の音響か小さく、防音加工の必要性が少なく
、また、金属製踏板のような発錆のおそれもない。Furthermore, since the through holes are provided during extrusion molding, the direction is constant and the same shape can be easily ensured. If the cross-sectional shape of the through hole is square, the square nut can be prevented from rotating. Due to the nature of the material used, extruded steps have sound absorbing properties, so they produce less noise during use, require less soundproofing, and do not have the risk of rusting like metal steps.
（実施例１）
平板状の踏板１と該踏板１の一側より立上るけ込み板２
とを押出成形して踏段３を成形する。前記踏段３は第１
図中左右下部に突出部４．５を設け、該突出部に貫通孔
６．６を踏段３の前縁と平行に設け、前記貫通孔６．６
（六角孔）の両端部内へ夫々筒状ナツト７．７（第３図
）を嵌入固定（接着剤による）したものである。図中８
は鉄筋である。(Example 1) A flat tread 1 and a push-in board 2 rising from one side of the tread 1
Steps 3 are formed by extrusion molding. The step 3 is the first
A protrusion 4.5 is provided at the lower left and right sides in the figure, and a through hole 6.6 is provided in the protrusion parallel to the front edge of the step 3.
Cylindrical nuts 7.7 (Fig. 3) are fitted and fixed (with adhesive) into both ends of the (hexagonal hole). 8 in the diagram
is a reinforcing bar.
前記実施例の踏段３は、第４図乃至第７図のように、さ
さら桁９．９の間に配設し、夫々ボルト１０．１０を貫
通し、筒状ナツト７．７に螺合してささら桁９と踏段３
とを締付け、階段１１を構成する。図中１２は支柱、１
３は梁、１４は踊場１５用の踏段である。As shown in FIGS. 4 to 7, the steps 3 of the embodiment are arranged between stringers 9.9, pass through bolts 10.10, and are screwed into cylindrical nuts 7.7. Tesara girder 9 and steps 3
and the stairs 11 are constructed. In the figure, 12 is a pillar, 1
3 is a beam, and 14 is a step for the landing 15.
前記踏段１４は、踏板のみてけ込み板はなく、踊場の床
を構成する。The steps 14 have only treads and no kickboards, and constitute the floor of the landing.
（実施例２）
この実施例は、第１図及び第３図に示す踏段３を押出成
形する製造方法である。(Example 2) This example is a manufacturing method for extrusion molding the steps 3 shown in FIGS. 1 and 3.
即ち、踏段３の材料（例えばファイバーコンクリート１
６を押出機１７に送入すると共に、メツシュ鉄筋１８（
縦横に組み上げた鉄筋）を定間隔て押出機１７へ送り込
む。この場合に押出機１７のノズルから第１図々示のよ
うな踏板１とけ込み板２を直角に一体化した断面形状の
踏段ヰ４が連続的に押出される。そこで切断機１つによ
り所定の長さ（第８図）に切断する。切断機］９による
切断は、例えば２〜５個の踏段毎に（即ち長尺に）切断
する。ついて、養生２４において硬化させた後、再び切
断機２０にかけて１個毎の踏段に切断する。次に、組立
機２１に入れて、ボルト１０付筒状ナツト７を貫通孔６
へ嵌入固着する。この場合に、筒状ナツト７の外側には
接着剤を塗布してあり、接着固定する。図中２３は押出
機の動力装置である。That is, the material of the steps 3 (for example, fiber concrete 1
6 into the extruder 17, and mesh reinforcing bars 18 (
The reinforcing bars assembled vertically and horizontally are fed into the extruder 17 at regular intervals. In this case, from the nozzle of the extruder 17, a step 4 having a cross-sectional shape in which the step board 1 and the stub board 2 are integrated at right angles as shown in the first figure is continuously extruded. Then, it is cut into a predetermined length (FIG. 8) using one cutting machine. Cutting by the cutting machine] 9 is performed, for example, every 2 to 5 steps (that is, into long pieces). Then, after being cured in a curing step 24, the step is cut into individual steps by the cutting machine 20 again. Next, put the cylindrical nut 7 with the bolt 10 into the through hole 6 by putting it into the assembly machine 21.
Inserts into and secures. In this case, an adhesive is applied to the outside of the cylindrical nut 7 to fix it. In the figure, 23 is the power device of the extruder.
前記７アイバーコンクリートは、普通コンクリートに合
成樹脂繊維（例えば長さ１２順、直径０、 ２ｍｍ）を
１〜２％（コクリート量に対する容量）均一に混入する
。ファイバーは、前記合成樹脂繊維の他に金属繊維（例
えば長さ２２順、直径０．５順のステンレススチール）
を１〜２％（コンクリート量に対する容量）用いること
ができる。The above-mentioned No. 7 Eyever Concrete is made by uniformly mixing 1 to 2% (volume based on the amount of cocrete) of synthetic resin fibers (for example, length 12, diameter 0.2 mm) into ordinary concrete. In addition to the above-mentioned synthetic resin fibers, the fibers include metal fibers (for example, stainless steel in the order of length 22 and diameter 0.5).
can be used in an amount of 1 to 2% (capacity relative to the amount of concrete).
要は引張強度を大きくすると共に、ひび割れを防止する
為に用いる。In short, it is used to increase tensile strength and prevent cracking.
前記実施例においては、踏板とけ込み板を有する踏段３
について説明したが、踏板のみの場合（例えば踊場用踏
段）にも押出成形できることは勿論である。In the above embodiment, the step 3 having a tread and a recessed board
However, it goes without saying that extrusion molding can also be performed in the case of only a tread (for example, steps for a landing).
前記により製造した踏段は、実施例１と同様に第４図乃
至第７図に示すようにささら桁間に固定して使用する。The steps manufactured in the above manner are used by being fixed between stringers as shown in FIGS. 4 to 7 in the same manner as in Example 1.
（発明の効果）
即ちこの発明の踏段によれば、側面（第１図）左右に貫
通孔が設けであるので、これを利用して貫通孔の両端部
に筒状ナツトを嵌入固着でき、同一中心線上にナツトが
定置されることになり、該ナツトに螺合するボルトによ
りささら桁と堅固に固定し得る効果かある。(Effects of the Invention) That is, according to the step of the present invention, since the through holes are provided on the left and right sides (Fig. The nut is placed on the center line, which has the effect of firmly fixing it to the stringer by means of a bolt threaded onto the nut.
また、この発明の方法によれば、踏段を押出成形するこ
とにより、全自動化と品質の均−化及び多量生産し得る
と共に表面性の良い製品となるなどの諸効果がある。然
して同一形状にできる為に、後加工（仕上げ）が不必要
になり、工程の簡略化にも有効である。Further, according to the method of the present invention, by extrusion molding the steps, there are various effects such as full automation, uniform quality, mass production, and products with good surface properties. However, since they can be made into the same shape, post-processing (finishing) is unnecessary, which is effective in simplifying the process.
第１図はこの発明の実施例の一部を切断した拡大側面図
、第２図は同じくささら桁との固定状態を示す一部断面
拡大図、第３図は同じく一部を切断した平面拡大図、第
４図は同じく使用状態を示す一部断面した側面図、第５
図は同じく一部平面図、第６図は同じく踊場の一部縦断
拡大正面図、第７図は同じく縦断拡大側面図、第８図は
押出成形踏段の製造方法のブロック図である。
１・・・踏板 ２・・・け込み板 ３．１４・・・
踏段６・・・貫通孔 ７・・・筒状ナツト ９・・・さ
さら桁１０・・・ボルト １１・・・階段 １７・・・
押出機特許出願人 株式会社横森製作所Fig. 1 is an enlarged side view with a part cut away of an embodiment of the present invention, Fig. 2 is an enlarged partial sectional view showing the fixed state with the stringer, and Fig. 3 is an enlarged plan view with the same part cut away. Figure 4 is a partially sectional side view showing the state of use, and Figure 5 is
6 is a partially enlarged front view of the landing, FIG. 7 is an enlarged longitudinal side view, and FIG. 8 is a block diagram of the method for manufacturing extrusion steps. 1...Treadboard 2...Kake board 3.14...
Step 6... Through hole 7... Cylindrical nut 9... String girder 10... Bolt 11... Stairs 17...
Extruder patent applicant Yokomori Seisakusho Co., Ltd.
Claims (1)
とを押出成形し、前記踏板の前部及び後部に設けた貫通
孔の両側端面部へナットを埋設したことを特徴とする押
出成形踏段２ ナットは筒状であって、踏板の前部及び
後部へ、前記踏板の前縁と平行に設けた貫通孔内両端に
近接して嵌入固定した請求項１記載の押出成形踏段 ３ 平板状の踏板と、該踏板の一側より立上るけ込み板
との側面形状のノズルより踏段材料を押し出すと共に、
補強手段を施し、前記踏板の左右両端部へ貫通孔を設け
、前記踏板の貫通孔の両端部へ筒状ナットを嵌入固定す
ることを特徴とした押出成形踏段の製造方法４ 踏板材
料をファイバーコンクリート、合成樹脂コンクリート又
は軽量コンクリートとした請求項３記載の押出成形踏段
の製造方法 ５ 補強手段は、鉄筋を埋設すると共に、貫通孔設置部
の肉厚を大きくした請求項４記載の押出成形踏段の製造
方法[Scope of Claims] 1. A flat step board and a recessed board rising from one side of the step board are extruded, and nuts are embedded in both end surfaces of through holes provided at the front and rear parts of the step board. 2. An extrusion-molded step 2 characterized in that the nut is cylindrical and is fitted and fixed in the front and rear parts of the step board in close proximity to both ends of through holes provided in parallel to the front edge of the step board. The extrusion molded step 3 described above extrudes the step material through a side-shaped nozzle of a flat step board and a stub board rising from one side of the step board, and
Method 4 for manufacturing an extrusion molded step, characterized in that a reinforcing means is provided, through holes are provided at both left and right ends of the tread, and cylindrical nuts are fitted and fixed into both ends of the through holes of the tread.The tread material is made of fiber concrete. 5. A method of manufacturing an extrusion step according to claim 3, wherein the reinforcing means is made of synthetic resin concrete or lightweight concrete. The method of manufacturing an extrusion step according to claim 4, wherein the reinforcing means includes embedding reinforcing bars and increasing the wall thickness of the through hole installation part. Production method
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP02291342A JP3118642B2 (en) | 1990-10-29 | 1990-10-29 | Extruded steps and method for producing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP02291342A JP3118642B2 (en) | 1990-10-29 | 1990-10-29 | Extruded steps and method for producing the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04166546A true JPH04166546A (en) | 1992-06-12 |
| JP3118642B2 JP3118642B2 (en) | 2000-12-18 |
Family
ID=17767683
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP02291342A Expired - Fee Related JP3118642B2 (en) | 1990-10-29 | 1990-10-29 | Extruded steps and method for producing the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3118642B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07119269A (en) * | 1993-08-09 | 1995-05-09 | Yokomori Seisakusho:Kk | Extruded footstep and manufacture thereof |
| JP2009280964A (en) * | 2008-05-19 | 2009-12-03 | Kurabo Ind Ltd | Fixing structure for connecting and fixing extrusion molded body to another member and stairs using this |
| JP2011012437A (en) * | 2009-07-01 | 2011-01-20 | Kurabo Ind Ltd | Cement stairs |
-
1990
- 1990-10-29 JP JP02291342A patent/JP3118642B2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07119269A (en) * | 1993-08-09 | 1995-05-09 | Yokomori Seisakusho:Kk | Extruded footstep and manufacture thereof |
| JP2009280964A (en) * | 2008-05-19 | 2009-12-03 | Kurabo Ind Ltd | Fixing structure for connecting and fixing extrusion molded body to another member and stairs using this |
| JP2011012437A (en) * | 2009-07-01 | 2011-01-20 | Kurabo Ind Ltd | Cement stairs |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3118642B2 (en) | 2000-12-18 |
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