JPS6124967B2 - - Google Patents
Info
- Publication number
- JPS6124967B2 JPS6124967B2 JP12123179A JP12123179A JPS6124967B2 JP S6124967 B2 JPS6124967 B2 JP S6124967B2 JP 12123179 A JP12123179 A JP 12123179A JP 12123179 A JP12123179 A JP 12123179A JP S6124967 B2 JPS6124967 B2 JP S6124967B2
- Authority
- JP
- Japan
- Prior art keywords
- plate
- board
- edge
- slate
- pressing
- 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
- 239000010454 slate Substances 0.000 claims description 29
- 238000005520 cutting process Methods 0.000 claims description 16
- 239000000758 substrate Substances 0.000 claims description 15
- 238000003825 pressing Methods 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 9
- 238000005452 bending Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000004575 stone Substances 0.000 description 2
- 239000010425 asbestos Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
Description
この発明はスレート板の切断方法に関し、詳し
くはスレート板の切断端面が斜面とされるスレー
ト板の切断方法に関する。
従来、石綿セメント製とされた瓦が広く使用さ
れているが、この種の瓦は葺き並べた場合、下列
の瓦と上列の瓦との間の隙間に雨水が毛細管現象
により浸水し易く、屋根野地面を湿らせたりする
欠点があつた。
このような欠点を解消するため、第１図に示す
ように、瓦Ａの下端端面Ｂを斜面にし、雨水の流
下効率を良くし、もつて、上下列の瓦Ａの間に雨
水が浸入しにくくすることが提案されているが、
従来、上記したような下端端面を斜面としたスレ
ート瓦を製造する場合、第２図に示すように、未
硬化のスレート板A′を比較的鈍角な刃先を有す
る刃Ｃにより切断し、もつて、刃側面C′に沿つ
た角度に切断することが行なわれている。
しかしながら、この方法による場合、切断面の
斜面の傾斜角度はせいぜい45゜ぐらいまでとしか
できず、角度に限度があり、また未硬化の原板を
切断するものであるから、切断時における原板の
支持なども困難であるといつた難点があつた。
この発明は、上記難点に鑑み、スレート瓦等の
板材の端面を斜めに切断する場合、その傾きを任
意に、かつ容易に切断し得、しかも切断面表面の
外観も意匠的に優れた外観となし得るスレート板
の切断方法を提供することを目的としてなされた
ものであつて、曲げ強度を30Kg／cm2以上となるま
で養生硬化させたスレート板の端縁を基板端縁か
ら延出させて載置し、該板材上面を押圧板で、前
記基板上面に対応する部分及び前記基板端縁より
前記スレート板の厚さの1.5倍までの範囲まで延
出した部分を均一に押圧固定した後、前記押圧板
の縁に沿つて前記板材の延出部分上面を加圧板で
加圧し、前記スレート板の表裏面の食い違い位置
に押圧力を作用させ、もつて前記基板端縁より前
記押圧板端縁に至る斜面に沿つてせん断破壊させ
ることを特徴とするものである。
次にこの発明を実施例により説明する。
第３図イ〜ニ図は、この発明の工程を示す説明
図、第４図は、この発明により得られたスレート
板の側断面図を示す。
この発明のスレート板の切断方法は、まず、第
３図イ図に示すように、曲げ強度を30Kg／cm2以上
となるまで養生硬化したスレート板１を、その端
縁１Ａを基板２の端縁２Ａから延出させて載置
し、次いで、このスレート板１上面を第３図ロ図
に示すように、押圧板３で基板２上面に対応する
部分及び基板２の端縁２Ａからスレート板１の厚
さＴの1.5倍の範囲まで延出した部分Ｓを均一に
押圧して基板２上に圧着固定した後、第３図ハに
示すように押圧板３の縁３Ａに沿つて前記板材１
の延出部分上面を加圧板４で加圧して切断するの
である。
このとき、板材１には基板２の端縁２Ａと押圧
板３の縁３Ａに沿つて、表裏面の食い違つた位置
に押圧力が作用し、しかも板材上面は押圧板３で
押圧支持されているから板材１は第３図ニに示す
ように基板端縁２Ａから、加圧板４に至る斜面に
沿つてせん断破壊される。
また、第４図に示すように、スレート板材１の
切断面１Ｃはせん断破壊面とされるのでその表面
状態は細かい凹凸状となり、自然石を割つた際に
得られるような表面状態とされる。
第５図は、この発明の実施に用いられる装置の
側面図であつて、スレート板材１を載置する基板
２、及び押圧板３、加圧板４を支持する可動基板
５とからなり、可動基板５には、加圧板４が固定
され、また押圧板３がばね６を介して取り付けら
れている。
基板２上にスレート板１を載置した後、可動基
板５を下降させれば押圧板３、及び加圧板４がス
レート板１に接触するが、このとき押圧板３はば
ね６により押圧付勢されるからスレート板材１を
均一に押圧し、さらに可動基板５を下降させる
と、加圧板４がスレート板１を強く押圧し、板材
１を切断するのである。
従つて、この装置によれば、押圧固定、切断が
１ストロークにより行え、切断作業が迅速に行え
る。
この発明において、切断対象となるスレート板
は、せん断破壊によつて斜め切断面を得るもので
あるから、スレート板は出来るだけ硬度が高くさ
The present invention relates to a method for cutting a slate board, and more particularly to a method for cutting a slate board in which the cut end surface of the slate board is sloped. Conventionally, tiles made of asbestos cement have been widely used, but when these tiles are laid out side by side, rainwater tends to enter the gap between the bottom row of tiles and the top row of tiles due to capillary action. It had the disadvantage of making the roof surface damp. In order to eliminate these drawbacks, as shown in Figure 1, the lower end surface B of the tile A is made sloped to improve the efficiency of rainwater flowing down, thereby preventing rainwater from entering between the upper and lower rows of tiles A. It has been proposed to make it more difficult, but
Conventionally, when manufacturing slate roof tiles with a sloped bottom end surface as described above, as shown in Fig. 2, an uncured slate plate A' is cut with a blade C having a relatively obtuse cutting edge, and then , cutting is performed at an angle along the blade side surface C'. However, with this method, the angle of inclination of the slope of the cutting surface can only be about 45 degrees at most, which is a limit to the angle.Also, since the uncured original plate is cut, it is necessary to support the original plate during cutting. There were also some difficulties. In view of the above-mentioned difficulties, the present invention has been developed so that when the end face of a plate material such as a slate tile is cut diagonally, the inclination can be arbitrarily and easily cut, and the appearance of the cut surface has an excellent appearance in terms of design. This method was developed for the purpose of providing a method for cutting a slate board that can be cut by cutting the slate board by extending the edge of the slate board, which has been cured and hardened to a bending strength of 30 kg/cm 2 or more, from the edge of the board. After placing the board and uniformly pressing and fixing the top surface of the board with a pressure plate, the part corresponding to the top surface of the board and the part extending from the edge of the board to a range up to 1.5 times the thickness of the slate board, A pressure plate is used to press the upper surface of the extending portion of the plate material along the edge of the press plate, and a pressing force is applied to the offset position on the front and back surfaces of the slate plate, so that the edge of the press plate is pressed from the edge of the substrate. It is characterized by causing shear failure along the slope leading to . Next, the present invention will be explained with reference to examples. FIGS. 3A to 3D are explanatory diagrams showing the steps of the present invention, and FIG. 4 is a side sectional view of a slate plate obtained by the present invention. The method for cutting a slate board according to the present invention is as shown in FIG . Then, as shown in FIG. After uniformly pressing the portion S extending to a range of 1.5 times the thickness T of the substrate 2 and fixing it onto the substrate 2, the plate material is pressed along the edge 3A of the pressing plate 3 as shown in FIG. 1
The upper surface of the extended portion is pressed with a pressure plate 4 and cut. At this time, pressing forces are applied to the plate material 1 at different positions on the front and back surfaces along the edge 2A of the substrate 2 and the edge 3A of the pressing plate 3, and the upper surface of the plate material is pressed and supported by the pressing plate 3. As a result, the plate material 1 is sheared and fractured along the slope from the substrate edge 2A to the pressure plate 4, as shown in FIG. 3D. In addition, as shown in Fig. 4, the cut surface 1C of the slate board 1 is a shear failure surface, so the surface condition is finely uneven, similar to that obtained when natural stone is broken. . FIG. 5 is a side view of an apparatus used for carrying out the present invention, which is composed of a substrate 2 on which a slate plate 1 is placed, a press plate 3, and a movable substrate 5 that supports a press plate 4. A pressure plate 4 is fixed to 5, and the pressure plate 3 is attached via a spring 6. After placing the slate plate 1 on the substrate 2, when the movable substrate 5 is lowered, the pressure plate 3 and the pressure plate 4 come into contact with the slate plate 1. At this time, the pressure plate 3 is biased by the spring 6. Therefore, when the slate plate 1 is pressed uniformly and the movable substrate 5 is lowered, the pressure plate 4 strongly presses the slate plate 1 and cuts the plate 1. Therefore, according to this device, pressing and fixing and cutting can be performed in one stroke, and the cutting operation can be performed quickly. In this invention, since the slate plate to be cut has an oblique cut surface through shear fracture, the slate plate should have as much hardness as possible.
【表】
この発明は以上のように構成されているので、
スレート板の端面を斜めに切断する場合、その傾
斜角度は、基板２端縁２Ａと加工板４との水平距
離Ｓを板厚Ｔの1.5倍の範囲内で調節することに
より任意に変えることが出来、例えば切断面の角
度を45゜とする場合には、上記水平距離Ｓを板材
１の厚みＴに等しくすれば良く、さらにＳ＞Ｔと
することにより任意に傾斜角度を鈍角化させるこ
とができるのである。しかも、この発明の切断方
法によれば、切断面は細かい凹凸状面とされ、自
然石を割つた様な外観とされるから、従来の切断
刃により切断した場合では得られない変化に富ん
だ切断面の状態となし得、自然な外観を有する板
材を、機械的に多量に製造出来るなど種々の効果
を有する。[Table] Since this invention is configured as described above,
When cutting the end face of a slate board diagonally, the inclination angle can be changed arbitrarily by adjusting the horizontal distance S between the edge 2A of the substrate 2 and the processing board 4 within a range of 1.5 times the board thickness T. For example, if the angle of the cut surface is 45 degrees, it is sufficient to make the horizontal distance S equal to the thickness T of the plate material 1, and furthermore, by setting S>T, the inclination angle can be arbitrarily made obtuse. It can be done. Moreover, according to the cutting method of the present invention, the cut surface has a finely uneven surface and has an appearance similar to that of splitting natural stone, so it can produce a variety of variations that cannot be obtained by cutting with a conventional cutting blade. It has various effects, such as being able to mechanically produce large quantities of plate materials that have a natural appearance and can be cut in the form of cut surfaces.
第１図は従来例の側断面図、第２図は従来例の
製造方法の説明図、第３図イ〜ニ図は、この発明
の工程を順に示す説明図、第４図はこの発明によ
り得られた板材の側断面図、第５図はこの発明の
実施に使用される装置の側面図第６図は自然養生
時間と強度との関係を示すグラフである。
１……スレート板材、１Ａ……スレート板材端
縁、２……基板、２Ａ……基板端縁、３……押圧
板、３Ａ……押圧板の縁、４……加圧板。
Fig. 1 is a side sectional view of the conventional example, Fig. 2 is an explanatory diagram of the manufacturing method of the conventional example, Fig. 3 A to D are explanatory diagrams sequentially showing the steps of the present invention, and Fig. 4 is an explanatory diagram of the manufacturing method of the conventional example. FIG. 5 is a side sectional view of the obtained plate material, FIG. 5 is a side view of the apparatus used for carrying out the present invention, and FIG. 6 is a graph showing the relationship between natural curing time and strength. 1...Slate board material, 1A...Slate board edge, 2...Substrate, 2A...Substrate edge, 3...Press plate, 3A...Edge of press plate, 4...Pressure plate.
Claims (1)
させたスレート板の端縁を基板端縁から延出させ
て載置し、該板材上面を押圧板で、前記基板上面
に対応する部分及び前記基板端縁より前記スレー
ト板の厚さの1.5倍までの範囲まで延出した部分
を均一に押圧固定した後、前記押圧板の縁に沿つ
て前記板材の延出部分上面を加圧板で加圧し、前
記スレート板の表更面の食い違い位置に押圧力を
作用させ、もつて前記基板端縁より前記押圧板端
縁に至る斜面に沿つてせん断破壊させることを特
徴とするスレート板の切断方法。1 Place the edge of a slate board that has been aged and hardened until the bending strength reaches 30 kg/cm 2 or more extending from the edge of the board, and press the top surface of the board with a press plate to press the part corresponding to the top surface of the board and the part corresponding to the top surface of the board. After uniformly pressing and fixing the portion extending from the edge of the substrate to a range up to 1.5 times the thickness of the slate plate, the upper surface of the extending portion of the plate material is applied with a pressure plate along the edge of the press plate. A method for cutting a slate board, the method comprising: pressing the slate board, and applying a pressing force to the offset position of the front surface of the slate board, thereby causing shear failure along the slope extending from the edge of the substrate to the edge of the pressing plate. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12123179A JPS5644617A (en) | 1979-09-19 | 1979-09-19 | Method of cutting slate board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12123179A JPS5644617A (en) | 1979-09-19 | 1979-09-19 | Method of cutting slate board |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5644617A JPS5644617A (en) | 1981-04-23 |
| JPS6124967B2 true JPS6124967B2 (en) | 1986-06-13 |
Family
ID=14806142
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12123179A Granted JPS5644617A (en) | 1979-09-19 | 1979-09-19 | Method of cutting slate board |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5644617A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS585212A (en) * | 1981-07-02 | 1983-01-12 | 株式会社クボタ | Method of cutting board material |
| JPS61233506A (en) * | 1985-04-10 | 1986-10-17 | 株式会社東芝 | Method and device for cleaving crystal |
| JPS62127207A (en) * | 1985-11-28 | 1987-06-09 | 宮田 洋志 | Concrete block cutter |
| JP2575478Y2 (en) * | 1990-11-22 | 1998-06-25 | 古河電気工業株式会社 | Optical fiber cutting machine |
-
1979
- 1979-09-19 JP JP12123179A patent/JPS5644617A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5644617A (en) | 1981-04-23 |
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