JPS586609B2 - P. C concrete stair formwork - Google Patents
P. C concrete stair formworkInfo
- Publication number
- JPS586609B2 JPS586609B2 JP7490980A JP7490980A JPS586609B2 JP S586609 B2 JPS586609 B2 JP S586609B2 JP 7490980 A JP7490980 A JP 7490980A JP 7490980 A JP7490980 A JP 7490980A JP S586609 B2 JPS586609 B2 JP S586609B2
- Authority
- JP
- Japan
- Prior art keywords
- mold
- lower mold
- side frame
- formwork
- concrete stair
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/22—Moulds for making units for prefabricated buildings, i.e. units each comprising an important section of at least two limiting planes of a room or space, e.g. cells; Moulds for making prefabricated stair units
- B28B7/225—Moulds for making units for prefabricated buildings, i.e. units each comprising an important section of at least two limiting planes of a room or space, e.g. cells; Moulds for making prefabricated stair units for making stairs or stair units comprising more than one step
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
- Moulds, Cores, Or Mandrels (AREA)
Description
【発明の詳細な説明】
この発明ＵＰ．Ｃ（プレキャスト）コンクリート階段型
枠に関するものである。[Detailed Description of the Invention] This invention UP. This relates to C (precast) concrete stair formwork.
一般に、ビルディング等の建築物に設けるコンクリート
階段は、各部分の寸法、段数等の設計条件が、建築物毎
に変るのが普通である。In general, for concrete stairs installed in structures such as buildings, design conditions such as the dimensions of each part and the number of steps usually vary from building to building.
このためＰ．Ｃコンクリート階段の型枠は、各部分を所
要寸法とし、かつ所要段数等に形成し、製品毎に異った
型枠を造り、これにより製造している。For this reason, P. Formwork for C concrete stairs is manufactured by making each part to the required dimensions and forming the required number of steps, etc., and creating a different formwork for each product.
従って仕様の変る度に型枠を製造しなければならず、面
倒であり、価額も高価となり、製造も長時間を要する。Therefore, it is necessary to manufacture formwork every time the specifications change, which is troublesome, expensive, and takes a long time to manufacture.
この発明は上記の状況にかんがみてなされたもので、こ
の発明のＰ．Ｃコンクリート階段型枠を図面について述
べると、第１図〜第４図において、平面ほぼ鋸状に形成
した下型１：前記下型１の背部２に接して上下方向に設
けた側枠３：前記下型１の鋸歯状部４の谷部５にほぼ合
致する断面ほぼ鍵状の掘曲部６を有する型体７：前記下
型１の鋸歯状部４の山部８に合致する断面ほぼ鍵状の屈
折部９を有する型枠１０：前記下型１０両端を閉じる端
型１１，１１から成ることを特徴とするＰ．Ｃコンクリ
ート階段型枠である。This invention was made in view of the above situation, and P. Referring to the drawings of C concrete staircase formwork, in Figs. 1 to 4, the lower mold 1 is formed into a substantially saw-shaped plane; the side frame 3 is provided vertically in contact with the back part 2 of the lower mold 1; A mold body 7 having a substantially key-shaped bent portion 6 in a cross section that substantially matches the valley portion 5 of the sawtooth portion 4 of the lower mold 1: A cross section that substantially matches the peak portion 8 of the sawtooth portion 4 of the lower mold 1. Formwork 10 having a key-shaped bent part 9: P. C concrete stair formwork.
これを詳述すると前記下型１は、段数、踏面部２１，蹴
上げ部２２，勾配、又該下型１を屈曲１２し、延長させ
て形成した踊場部２３等を、所定の仕様に合致させて、
原寸法で板状体として形成する。To explain this in detail, the lower mold 1 has the number of steps, the tread portion 21, the riser portion 22, the slope, the landing portion 23 formed by bending 12 and extending the lower mold 1, etc., to meet predetermined specifications. hand,
It is formed as a plate-like body in its original size.
そして前記下型１の踏面部２１には第３図に示す如く切
欠き部２０が形成されてあり、又前記型枠８ぱ前記切欠
き部２０に適合するように形成されている。A notch 20 is formed in the tread portion 21 of the lower mold 1 as shown in FIG. 3, and the mold frame 8 is formed to fit into the notch 20.
次にこの下型１は昇降台２４上に載置される。Next, this lower mold 1 is placed on the lifting table 24.
昇降台２４は一例として基台２５にナット２６を溶着し
、該ナット２６にボルト２７を螺合せしめたものであり
、ボルト２７を回動させることにより基台２５が、ひい
ては下型１が昇降できるようになっている。The elevating table 24 is, for example, a nut 26 welded to a base 25 and a bolt 27 screwed into the nut 26. By rotating the bolt 27, the base 25 and, by extension, the lower mold 1 can be raised and lowered. It is now possible to do so.
前記側壁３は基盤１９上に、下型１に接して設けられて
いる。The side wall 3 is provided on the base 19 in contact with the lower mold 1.
２８は固定台、２９は支柱を示す。Reference numeral 28 indicates a fixed base, and 29 indicates a support.
そして前記側枠３は二箇所において、角度変更自在に形
成１４．１４されており、その挾角θは、一方はターン
バックル３０等により可変に形成され、他方は前記側枠
３に対し第２側枠１５が、移動、離着自在に設けられて
いる３１はパッキング部材である。The side frame 3 is formed at two places so as to be able to freely change the angle 14, 14, and the angle θ of the side frame 3 is made variable at one position by means of a turnbuckle 30, etc. A packing member 31 is provided with the side frame 15 so as to be movable and detachable.
次に前記枠体７は、第３図に示すように断面ほぼチャン
ネル状に形成されている。Next, the frame body 7 has a substantially channel-shaped cross section as shown in FIG.
３２は型枠１０に設けられたアームで、該アーム３２と
、型体７間に楔３３を打込み、、これにより型体７と型
枠１０を重ねて、下型１に圧接させるようになっている
。32 is an arm provided on the mold 10, and a wedge 33 is driven between the arm 32 and the mold 7, so that the mold 7 and the mold 10 are overlapped and brought into pressure contact with the lower mold 1. ing.
又３４は型体７の腕３５に螺合した螺杆で、その把持部
３６を回動することにより型枠１０を下型１に圧接させ
る。Further, 34 is a screw threadedly engaged with the arm 35 of the mold body 7, and the mold frame 10 is brought into pressure contact with the lower mold 1 by rotating the grip portion 36 thereof.
又この型体７の、前記下枠１の延長部１３に接するもの
は、同型体７より長く形成７′する。Also, the part of this molded body 7 that contacts the extension part 13 of the lower frame 1 is formed longer than the same molded body 7 7'.
そして該型体７′，側壁３，又は第２側枠１５間には、
前記端型１１，１．１が摺動自在に設けられている。And between the mold body 7', the side wall 3, or the second side frame 15,
The end mold 11, 1.1 is slidably provided.
次に１６は型体７を互を連結する連結部材で、この連結
により型木枠１７が形成される。Next, reference numeral 16 denotes a connecting member that connects the mold bodies 7 to each other, and a wooden mold frame 17 is formed by this connection.
そして該型体群１７と前記側枠３は、接続部材１８によ
り接続される。The mold group 17 and the side frame 3 are connected by a connecting member 18.
この接続部材１８は、一例として長尺のボルト等を用い
、間隔の変更は自在である次に、３７は型体７の外側下
部に接して、基盤１９上に移動自在に設けられた固定部
材であり、３８は長穴、３９はボルトを示す。This connecting member 18 uses, for example, a long bolt or the like, and the interval can be changed freely.Next, reference numeral 37 denotes a fixing member movably provided on the base 19 in contact with the outer lower part of the mold body 7. 38 is a long hole, and 39 is a bolt.
次にこのように形成された型枠を用いて、Ｐ．Ｃコンク
リート階段を造る場合について述べるとまず、所定仕様
により、段数、勾配、蹴上げ部２２，踏面部２１，踊場
部２３等の寸法等を決め下型１を原寸法にて造り、予め
基盤１９上に設けてある側枠３の角度変更自在部１４の
、挾角θをターンバックル３０等により前記仕様の勾配
に沿って調節し、前記下型１を側枠３に接しさせて、前
記昇降台２４上に載置する。Next, using the formwork formed in this way, P. Regarding the case of building C concrete stairs, first, the number of steps, slope, dimensions of the risers 22, treads 21, landings 23, etc. are determined according to predetermined specifications, and the lower mold 1 is made to the original dimensions, and the lower mold 1 is made in advance on the base 19. Adjust the angle θ of the angle changeable part 14 of the side frame 3 provided in the side frame 3 along the slope of the specifications using the turnbuckle 30 or the like, bring the lower mold 1 into contact with the side frame 3, and lift the lifting platform. 24.
そして該昇降台２４の高さを調節して下型１上面と側枠
３の上端迄の長さＬが、製造する階段の巾と等しくなら
しめる。Then, the height of the lifting table 24 is adjusted so that the length L from the upper surface of the lower mold 1 to the upper end of the side frame 3 is made equal to the width of the stairs to be manufactured.
次に下型１の、鋸歯状部４の山部８に対し型枠１０を当
てがい、次いで同谷部５に対して型木１を当てがう。Next, the mold 10 is applied to the peaks 8 of the serrated portions 4 of the lower mold 1, and then the mold 1 is applied to the valleys 5.
この場合下型１の蹴上げ部２２の長さが仕様変更により
変っていても、型体７と型枠１０が摺動して自動的に順
応する。In this case, even if the length of the riser part 22 of the lower mold 1 changes due to a change in specifications, the mold body 7 and the mold frame 10 slide to automatically adapt.
踏面部２１の変更に対しても型体７の長さは一般の階段
の長さより長く形成されているため、前記の如く単に当
てがうだけで、自動的にその変更に順応する。Even if the tread portion 21 is changed, since the length of the mold body 7 is longer than the length of a general staircase, it will automatically adapt to the change simply by applying it as described above.
次に前記固定部材３７を型１７，同７′の外側下端部に
圧接−その状本で、ボルト３９等により基盤１９に固定
する。Next, the fixing member 37 is pressed against the outer lower end of the molds 17 and 7' and fixed to the base 19 with bolts 39 or the like.
又前記型体７の螺杆３４を締め、かつ型枠１０のアーム
３２と形体７間に楔３３を打込み、型枠１０，型体７等
を下型１に圧接される。Further, the screw rod 34 of the mold body 7 is tightened, and a wedge 33 is driven between the arm 32 of the mold frame 10 and the mold body 7, so that the mold frame 10, the mold body 7, etc. are pressed against the lower mold 1.
次に第２側枠１５を、下型１の他の延長部１３に接当さ
せ、それと共にパッキング部材３１を介して側枠３に接
当させて、基盤１９に固定する。Next, the second side frame 15 is brought into contact with the other extension part 13 of the lower mold 1, and is also brought into contact with the side frame 3 via the packing member 31, and fixed to the base 19.
そして前記下型１の、延長部１３，１３の側枠３，第２
側枠１５を接当させた一側の、他の一側には型木７′を
接当して設ける。And the side frame 3 of the extension parts 13, 13 of the lower mold 1, the second
A mold 7' is provided in contact with one side of the side frame 15 and the other side.
又前記延長部１３，１３の末端には端型１１，１１を接
当し、固定具３９により前記両者７′，３又は１５に固
定する。Further, the end molds 11, 11 are brought into contact with the ends of the extension parts 13, 13, and fixed to the two parts 7', 3, or 15 by a fixture 39.
又型；体７，７′を連結部材１６により連結し、型体群
１７を形成し、該型体群１γと側枠３，第２側枠１５と
を接続部材１８により接続する。Also, the mold bodies 7 and 7' are connected by a connecting member 16 to form a mold body group 17, and the mold body group 1γ, the side frame 3, and the second side frame 15 are connected by a connecting member 18.
又、図示は省略するが、前記側枠３と型木７は、昇降台
２４の上、下を通るワイヤ、長尺ボルト等の連結具によ
って連結してもよい。Although not shown, the side frame 3 and the mold 7 may be connected by a connecting device such as a wire or a long bolt passing above and below the lifting platform 24.
このようにして形成された型枠内に、予め形成されてい
る鉄筋等による骨格部材（図示省略）を挿入し、次いで
コンクリートを注入し、これを養生して、Ｐ．Ｃコンク
リート階段を製造する。Into the formwork formed in this way, a pre-formed skeleton member (not shown) made of reinforcing bars or the like is inserted, concrete is then poured, and it is cured. C Manufacture concrete stairs.
この後の型枠の分解は前記組立の場合の逆に行えばよい
。The subsequent disassembly of the formwork can be carried out in the reverse order of the above-mentioned assembly.
この発明に上記の如く構成されたことにより、前記従来
のＰ．Ｃコンクリート階段型枠の問題点は殆んど解決さ
れる。By having the present invention configured as described above, the conventional P. Most of the problems with C concrete stair formwork are solved.
即ち階段の所定仕様により下型１のみを造れば、他の部
分はすべてそのまま利用することができるから、型枠の
製造がきわめて容易であり、製造期間もごく短く、かつ
安価にできる。That is, if only the lower mold 1 is manufactured according to the predetermined specifications of the staircase, all other parts can be used as they are, so manufacturing the formwork is extremely easy, the manufacturing period is extremely short, and the cost can be reduced.
又下型１を昇降自在に形成したことにより、階段の側面
を側枠３，型体７．７′の上端と同位置にすることがで
きるから階段巾の寸法精度を正確に仕上げることができ
る。In addition, by forming the lower mold 1 so that it can be raised and lowered, the side surface of the staircase can be placed at the same position as the upper end of the side frame 3 and the mold body 7.7', so that the dimensional accuracy of the staircase width can be precisely finished. .
又側面仕上げ作業をし易くすることができる。It also makes it easier to perform side finishing work.
更に、側枠３に二つの角度変更自在部１４．１４を設け
、そのうちの少くも一つの角度変更自在部１４は移動可
能に形成されるから、階段の勾配及び段数の仕様の変更
に対応することができる。Further, the side frame 3 is provided with two angle-changeable parts 14, 14, and at least one of the angle-changeable parts 14 is formed to be movable, so that it can accommodate changes in the specifications of the slope and number of steps of the stairs. be able to.
又、端型１１，ＩＩは側枠３及び第２側枠１５と、型体
７′に対し摺動自在に形成したことにより、階段の踊場
長さの変更に対応することができる。In addition, the end molds 11 and II are formed to be slidable with respect to the side frame 3, the second side frame 15, and the mold body 7', so that it is possible to correspond to changes in the length of the landing of the stairs.
又型体７は断面ほぼチャンネル状に形成されたから、型
体７がコンクリートの側圧により撓み、即ち製造される
階段の巾方向の中央部が上方に膨出してしまうのを防止
することができる。Furthermore, since the mold body 7 is formed to have a substantially channel-shaped cross section, it is possible to prevent the mold body 7 from being bent by the lateral pressure of the concrete, that is, from bulging upward in the widthwise center of the staircase to be manufactured.
又下型１の踏面部２１に切欠き部２０を形成しかつ型枠
８は前記切欠き部２０に適合するように形成されたから
、型枠８の脱型後、成形階段の切欠き部２０の相当部を
ノンスリップの取付用凹部として利用することができる
。In addition, since the notch 20 was formed in the tread portion 21 of the lower mold 1 and the mold 8 was formed to fit into the notch 20, after the mold 8 was removed, the notch 20 of the molding step was removed. The corresponding portion can be used as a non-slip mounting recess.
図面はこの発明の実施例を示すもので、第１図はＰ．Ｃ
コンクリート階段型枠の、一部を省略して示した概略平
面図、第２図は第１図の■一■線部断面図、第３図は第
１図の一部分の詳細を示す部分図、第４図は第２図の一
部分の詳細を示す部分図である。
１・・・・・・下型、２・・・・・・背部、３・・・・
・・側枠、４・・・・・・鋸歯状部、５・・・・・・谷
部、６・・・・・・屈曲部、７，７’・・・・・・型体
、８・・・・・・山部、９・・・・・・屈折部、１０・
・・・・・型枠、１１・・・・・・端型、１２・・・・
・・屈曲部、１３・・・・・・延長部、１４・・・・・
・角度変更自在部、１５・・・・・・第２側枠、１６・
・・・・・連結部材、１７・・・・・・枠体群、１８・
・・・・・接続部材、１９・・・・・・基盤、２０・・
・・・・固定部材。The drawings show an embodiment of the invention, and FIG. C
A schematic plan view of the concrete stair formwork with some parts omitted; Fig. 2 is a sectional view of the section taken along the line ■■ in Fig. 1; Fig. 3 is a partial view showing details of a part of Fig. 1; FIG. 4 is a partial view showing details of a portion of FIG. 2. 1...lower mold, 2...back, 3...
...Side frame, 4...Sawtooth portion, 5...Trough, 6...Bend portion, 7,7'...Mold body, 8 ...Mountain part, 9...Refraction part, 10.
...Formwork, 11... End mold, 12...
...Bent part, 13...Extension part, 14...
・Angle changeable part, 15... Second side frame, 16.
...Connecting member, 17... Frame group, 18.
... Connection member, 19 ... Base, 20 ...
...Fixed member.
Claims (1)
２に接して上下方向に設けた側枠３：前記下型１の、鋸
歯状部４の谷部５にほぼ合致する断面ほぼ鍵状の屈曲部
６を有する型体７：前記下型１の、鋸歯状部４０山部８
に合致する断面ほぼ鍵状の屈折部９を有する型枠１０：
前記下型１の両端を閉じる端型１１，１１から成ること
を特徴とするＰ．Ｃコンクリート階段型枠。 ２ 前記下型１は昇降自在に形成されていることを特徴
とする特許請求の範囲第１項記載のＰ． Ｃコンクリー
ト階段型枠。 ３ 前記下型１ぱ屈曲部１２．１２において屈曲延長１
３，１３Ｌて形成され、又前記側枠３は二つの角度変更
自在部１４．１４を有し、そのうち少くも一つの角度変
更自在部１４は移動可能に形成されていることを特徴と
する特許請求の範囲第１項記載のＰ，Ｃコンクリート階
段型枠。 ４ 前記端型１１，１１は、前記側枠３及び該側枠３に
移動可能に設けられた第２側枠１５，及び前記下型１の
延長部１３に接して設けられた、前記型体７よりも長く
形成された型体７′に対し、摺動自在に形成されたこと
を特徴とする特許請求の範囲第３項記載のＰ．Ｃコンク
リート階段型枠。 ５ 前記型体７′は断面ほぼチャンネル状に形成された
ことを特徴とする特許請求の範囲第１項記載のＰ．Ｃコ
ンクリート階段型枠。 ６ 前記下型１の踏面部２１は切欠き部２０を持たしめ
て形成され、又前記型枠は前記切欠き部２０に適合する
ように形成されたことを特徴とする特許請求の範囲第１
項記載のＰ．Ｃコンクリート階段型枠。[Claims] 1. A lower mold 1 formed into a substantially serrated plane: A side frame 3 provided vertically in contact with the back portion 2 of the lower mold 1: A trough of the serrated portion 4 of the lower mold 1. 5: a mold body 7 having a bent portion 6 having a substantially key-shaped cross section that substantially coincides with the curve 5: the sawtooth portion 40 and the peak portion 8 of the lower mold 1;
A formwork 10 having a bent portion 9 having a substantially key-shaped cross section that matches:
The P. C concrete stair formwork. 2. P.C. according to claim 1, characterized in that the lower mold 1 is formed to be able to rise and fall freely. C concrete stair formwork. 3 Bend extension 1 at the bending part 12.12 of the lower mold 1
3.13L, and the side frame 3 has two angle-variable parts 14, 14, at least one of which is movably formed. P, C concrete stair formwork according to claim 1. 4 The end molds 11, 11 are the mold bodies provided in contact with the side frame 3, the second side frame 15 movably provided on the side frame 3, and the extension portion 13 of the lower mold 1. P.7 as claimed in claim 3, characterized in that it is formed to be slidable on the mold body 7' which is longer than P.7. C concrete stair formwork. 5. P. as set forth in claim 1, characterized in that the mold body 7' has a substantially channel-shaped cross section. C concrete stair formwork. 6. Claim 1, characterized in that the tread portion 21 of the lower mold 1 is formed with a notch 20, and the mold frame is formed to fit the notch 20.
P. C concrete stair formwork.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7490980A JPS586609B2 (en) | 1980-06-05 | 1980-06-05 | P. C concrete stair formwork |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7490980A JPS586609B2 (en) | 1980-06-05 | 1980-06-05 | P. C concrete stair formwork |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS571706A JPS571706A (en) | 1982-01-06 |
| JPS586609B2 true JPS586609B2 (en) | 1983-02-05 |
Family
ID=13560977
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7490980A Expired JPS586609B2 (en) | 1980-06-05 | 1980-06-05 | P. C concrete stair formwork |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS586609B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61165545A (en) * | 1985-01-14 | 1986-07-26 | Daikin Ind Ltd | Device for controlling air conditioner |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4666913A (en) * | 1985-11-22 | 1987-05-19 | William H. Rorer, Inc. | Hydroxy and aminothiazolyl-benzodiazinone compounds, cardiotonic compositions including the same, and their uses |
| JP2550885B2 (en) * | 1993-09-16 | 1996-11-06 | 大成プレハブ株式会社 | Method of manufacturing stairs and formwork device thereof |
| WO2013161065A1 (en) * | 2012-04-27 | 2013-10-31 | 前田建設工業株式会社 | Formwork apparatus for precast concrete stairway, and casting method for precast concrete stairway |
-
1980
- 1980-06-05 JP JP7490980A patent/JPS586609B2/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61165545A (en) * | 1985-01-14 | 1986-07-26 | Daikin Ind Ltd | Device for controlling air conditioner |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS571706A (en) | 1982-01-06 |
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