542867 A7 B7 五、發明説明（i) 發明背景 -----.---I----- (請先閲讀背面之注意事項再填寫本頁) 本發明係關於一種製造鋼筋元件之方法，此鋼筋元件 是放置在欲成爲混凝土結構的一部位內，以及關於以此方 法所形成的製品。 如曰本專利第62-1 53449號案中所示，作爲放置在欲 成爲混凝土結構的部位內之鋼筋元件，使用一種混凝土鋼 筋元件，係將互相平行放置的多數纖維全部黏接起來形成 纖維束，然後再互相交叉形成格子狀的形式，且在一方向 上延伸的纖維束與另一方向上延伸的纖維在格子的交叉位 置上堆疊成至少三層。圖1是一立體圖，顯示一混凝土鋼 筋元件。如圖1所示，.鋼筋元件包含有許多纖維束，彼此 交叉以形成格子。圖2是一剖面圖，顯示在此交叉位置的 鋼筋元件。如圖2所示，各含有以樹脂材質4黏接的多數 纖維2之纖維束2a與2b是彼此交替堆疊起來的。 經濟部智慧財產局員工消費合作社印製 直到如今，這樣的混凝土鋼筋元件已經藉由以下的方 式而獲得，就是藉由細線纏繞成形法使纖維束互相交叉成 格子形式以便獲得疊片，且此疊片受熱且加壓交叉位置， 或者在交叉位置加壓之後再加熱疊片，且從一模子一次可 獲得一成形製品。根據此方法，可以適當地獲得鋼筋元件 所需要的特性，且可以獲得具有理想尺寸及形狀之成形製 品。然而，受限於模子的數目使產量變得很低，且因此製 造成本就會便得很高。 爲了解決上述問題，本發明的目的就是要提供一種高 產量的製造混凝土鋼筋元件之方法。 本紙張尺度適用中國國家標準（CNS ) A4規格（210X 297公釐） -4- 542867 A7 B7 五、發明説明（2 ) 爲達到上述目的，本發明提供一種製造混凝土鋼筋元 件之方法，包含以下步驟：將互相平行放置的多數纖維以 樹脂材質黏接成纖維束，將一方向延伸的纖維束與另一方 向延伸之纖維束交叉而形成格子，及重複實施此操作以便 形成單位疊片，其中在一方向上延伸的纖維束與另一方向 上延伸之纖維束是在格子的交叉位置上堆疊起來；安裝一 分離器在上述形成的單位疊片上，進一步在此分離器上形 成第二單位疊片，且重複實施此操作以便形成多層疊片， 此多層疊片在單位疊片之間插入一分離器；及加壓此多層 疊片，致使在一方向上延伸之纖維束與另一方向上延伸之 纖維束會在格子的交叉位置上產生接觸黏接。 在本發明混凝土鋼筋元件的製造方法中，纖維束最好 是藉由從與互相交叉的纖維束平面成直角之方向加壓此多 層疊片而產生接觸黏接。 在本發明製造混凝土鋼筋元件之方法中，最好在疊片 的格子中放入一間隔物以便界定單位疊片的厚度。 在本發明製造混凝土鋼筋元件之方法中，最好在此疊 片的周圍部位上放置一導引板，以便界定單位疊片的尺寸 〇 本發明進一步提供由本發明的製造方法所形成的一多 層疊片。 本發明進一步提供一種製造混凝土鋼筋元件之方法， 包含在本發明的多層片的互相交叉之纖維束的平面四邊上 ，切割邊緣以便將此多層疊片分割成多數單位疊片，如此 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） (請先閱讀背面之注意事項再填寫本頁) 訂. 經濟部智慧財產局員工消費合作社印製 -5- 542867 A7 B7 五、發明説明（4 ) 12 銷 50 單位疊片 51 分離器 52 間隔物 54 銷 60 纖維束 61 分離器膜 63 導引板 71 銷 72 導引板 73 重物 80 多層疊片 81 銷 82 箱型框架 83 饋進螺絲 (請先閲讀背面之注意事項再填寫本頁) 經濟部智慧財產局g(工消費合作社印製 較佳實施例之詳細說明 用來製造本發明混凝土鋼筋元件之方法其特徵在於多 數單位疊片是藉由一分離器而堆疊以便形成多層疊片。 單位疊片之製造 作爲製造單位疊片之方法，可以使用以下的方法’然 而，此發明的方法並未被侷限至此’且單位疊片也可以其 他方法製造而成。 本紙張尺度適用中國國家標準（CNS ) A4規格（210X 297公釐） 7 542867 A7 _B7____ 五、發明説明（6 ) 堆疊成多層結構。參數52標示一間隔物，且參數54標示 一銷，上面固定有纖維束。 .(請先閱讀背面之注意事項再填寫本頁) 在本發明的方法中，多數單位疊片是藉由內插入一分 離器而堆疊起來，且然後加壓以至於構成單位疊片的纖維 束之交叉位置可以產生接觸黏接。藉由此操作’可以將單 位疊片之厚度變成很均勻。 在此，在加壓的同時或加壓之後，實施樹脂材質的熱 硬化或光照硬化。. 在此所使用的分離器可以是任何型式的分離器，只要 它能防止構成不同單位疊片的纖維束產生接觸黏接即可， 而纖維束的交叉位置適當地產生接觸黏接，且在多層疊片 被形成之後，可以輕易地將每個單位疊片予以分離。例如 ，此分離器可以是一釋放膜，例如含有聚對苯二甲酸乙酯 的玻璃紙或聚酯膜、一用於釋放的片材，例如四氟代聚乙 烯等氟樹脂所製成之片材，或上面塗覆有硬酯酸型式、矽 型式、蠟型式或聚乙烯醇型式的釋放劑之金屬板或樹脂膜 〇 經濟部智慧財產局員工消費合作社印製 而且，當使用具有浮雕之分離器時，則可以在疊片上 產生凹陷與突起，如此可增加附著於混凝土之黏著性。 在本發明的方法中，具有理想高度之間隔物可以被初步 放置在此格子中，以便形成具有理想厚度之單位疊片。在圖 5 A及5 B中，間隔物5 2被放置在格子中的纖維束5 0之間， 藉此可以維持單豐片之理想局度。在圖5A及5B中，參數 5 1標示一分離器。不需要在每個方塊中放入一間隔物，且可以 -9- 本紙張尺度適用中.國國家標準（CNS ) A4規格（210X297公釐） 542867 A7 B7 五、發明説明（7) 放入想要數量的間隔物即可，致使在加壓時施加到格子上 的壓力會維持固定。 (請先閲讀背面之注意事項再填寫本頁) 可以根據欲形成的混凝土鋼筋元件之厚度來選擇間隔 物的高度’而且可以使用具有不同高度的間隔物於個別的 單位疊片上’藉此可以同時獲得具有不同厚度的單位疊片 〇 而且，可以與間隔物一起使用一導引板。 如上所述’最好能使用間隔物來獲得具有理想厚度之 混凝土鋼筋元件，然而，在形成薄單位疊片的情形中，例 如以格子形式具有厚度大約1到3 m m之完成單位疊片，由 於結構的關係很難使用間隔物。在這樣的情形之下，最好 使用導引板。圖6A及6B顯示一縱向剖面圖及一上視圖， 分別顯示一多層疊片，其中每個單位疊片很薄且並未使用 間隔物。在圖6A中，參數60標示一纖維束，且參數61標 示一分離器膜。導引板63是放置在格子形式的疊片之周圍 部位上，在銷62的內部。雖然並未顯示，導引板63也放 置在相對於圖形垂直方向上之周圍部位上。 經濟部智慧財產局員工消費合作社印製 導引板63具有一平板的形狀，且上面有孔或溝紋，其 中朝向銷62延伸之纖維束會通過此孔或溝紋，且在加壓時 可維持單位疊片之尺寸與形狀。導引板63覆蓋有一分離膜 或塗覆一釋放劑，以便防止在加壓時纖維束的接觸黏接。 最好在圖5A所用的間隔物之情形中使用導引板63 ’可以 根據單位疊片的尺寸與多層疊片的高度決定導引板6 3的高 度與位置。 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） _ 1〇 _ 542867 A7 ______B7 五、發明説明（8 ) 然而，本發明並未侷限於上述情形，且可以實施本發 明而不需使用間隔物或導引板。 (請先閱讀背面之注意事項再填寫本頁) 加壓多層疊片的方法可以是任何的方法，只要單位疊 片的纖維束之交叉位置可以均勻地加壓即可，然而，多層 疊片最好是從與互相交叉的纖維束之平面成直角之方向來 加壓。如圖7A及7 B所示，作爲加壓的機構，例如大量金 屬的多數重物7 3，或內含沙子或金屬顆粒的袋子等均可以 放置在多層疊片的頂部，致使施加在纖維束的交叉位置之 負荷會很均勻。參數71標示一銷，且參數72標示一導引 板。爲了易於了解，所以並未顯示相對於圖形在縱向方向 上的纖維束。此外，可以在多層疊片的頂部上放置一棒子 或平板重物來加壓，其能覆蓋多層疊片的整個縱向方向或疊 片的整個頂部表面。而且，如圖8 A及8 B所示，可以在一箱 型框架82中形成一多層疊片80,可以從該框架藉由饋進螺 絲8 3施加一反作用力，且疊片8 0可以藉由一螺絲扣的方法 予以加壓。藉此方法，纖維束的交叉位置可以根據鋼筋元件 的剖面形式，藉由施加1 00到200kg/m2的負荷在格子的整 個面上因而產生接觸黏接。在圖8 A中，參數8 1標示一銷。 經濟部智慧財產局員工消費合作社印製 在其中纖維束是藉由圖3所示的設備而互相堆疊之情 形中，在格子外部且固定在銷1 2上的纖維束，在加壓及樹 脂材料硬化之後會被切割，且多層疊片會被從平臺1 〇取出 ，且於是從格子突出且形成重疊部位的纖維束在產品製造 時會被切掉，因此造成材料的浪費。當銷1 2可以移動且從 格子拉出時，多層疊片可以從平臺拉出，且藉由移動這些 -11 - 本紙張尺度適用中國國家標準（CNS〉A4規格（21〇X29<7公釐） 542867 A7 B7 五、發明説明（9) (請先閱讀背面之注意事項再填寫本頁) 分離器，每個單位疊片可以分離以便獲得多數單位疊片。 於是，不會產生重疊部位，且整個纖維束會構成格子，而 材質的產量也能增進。 本發明的多層疊片是一種多層疊片，其中多數單位疊 片藉由內插入一分離器而互相堆疊，且可以使用可移動銷 及從平臺中將多層疊片取出之方法獲得。 由於構成單位疊片的纖維束會通過形成在導引板上的 孔洞，所以多層疊片是固定在導引板上，且於是即使當多 層疊片被從平臺中拿出時，單位疊片也不會分離而維持多 層的形式。於是，可以在多層的狀態下攜帶疊片，且在其 使用時，藉由切割在格子四邊上的邊緣，也就是切割互相 交叉的纖維束四邊上的邊緣，則能將多層疊片分離成多數 單位疊片。 經濟部智慧財產局員工消費合作社印製 構成單位疊片的纖維束之交叉是不會侷限成矩形的交 叉方式，也可以是偏向交叉。在這樣情形下，整個格子的 形狀就不會被侷限成矩形，也可以是菱形。而且，個別單 位疊片的形狀也不會侷限成平面，也可以如隧道壁般的曲 線形狀。這樣的曲線狀疊片可以藉由曲線平臺而非扁平平 臺且藉由曲線加壓重物來形成。 在本發明中，單位疊片的數目也並未特別限制，且可 以根據疊片的需要及製造時所使用的導引板之高度而選擇 〇 在本發明中，構成纖維束的纖維可以是任何用於纖維 強化複合材質的纖維，且主要是玻璃纖維或碳纖維。然而 本紙張尺度適用中國國家標準（CNS ) A4規格（21〇X29<7公釐） "" — -12- 542867 A7 _ 五、發明説明（Μ) 件’因此可以增進混凝土鋼筋元件的產量。而且，根據本 發明的方法’可以在單一製造方法中同時生產具有不同尺 寸的混凝土鋼筋元件。 可以在含有多數單位疊片的多層結構中實施本發明的 多層疊片。在使用時，藉由將互相交叉的纖維束之平面四 邊上的邊緣切掉，此多層疊片會被分割成多數單位疊片， 藉此可以獲得單位疊片。所獲得的單位疊片可以適用於結 構或土木工程應用上之混凝土材質的鋼筋元件，例如鐵路 通is電纜所用的天溝、地板蓋、或水密封隧道及地下隧道 所用的掩護機之垂直軸。 ----^---.--0— (請先閱讀背面之注意事項再填寫本頁) 訂、 經濟部智慧財產局員工消費合作社印製 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） -14-542867 A7 B7 V. Description of the invention (i) Background of the invention -----.--- I ----- (Please read the notes on the back before filling out this page) The present invention relates to a method for manufacturing reinforced elements This reinforced element is placed in a part to be a concrete structure, and the product formed by this method. As shown in Japanese Patent No. 62-1 53449, as a reinforced element placed in a portion to be a concrete structure, a concrete reinforced element is used, and a plurality of fibers placed in parallel to each other are bonded together to form a fiber bundle. , And then cross each other to form a lattice form, and the fiber bundles extending in one direction and the fibers extending in the other direction are stacked in at least three layers at the intersection of the lattice. Figure 1 is a perspective view showing a concrete steel reinforcement element. As shown in Figure 1, the reinforcing element contains a number of fiber bundles that cross each other to form a grid. Figure 2 is a cross-sectional view showing the reinforcing elements at this intersection. As shown in Fig. 2, the fiber bundles 2a and 2b each containing a plurality of fibers 2 bonded with a resin material 4 are alternately stacked. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs until now, such concrete reinforced steel elements have been obtained by the following method: the fiber bundles are intersected into a lattice form by a thin wire winding forming method to obtain a lamination, and the lamination The sheet is heated and pressed at the crossing position, or the laminated sheet is heated after pressing at the crossing position, and one shaped article can be obtained from one mold at a time. According to this method, it is possible to appropriately obtain characteristics required for a reinforcing element, and to obtain a shaped product having a desired size and shape. However, the limitation on the number of molds makes the yield very low, and therefore the manufacturing cost is very high. In order to solve the above problems, it is an object of the present invention to provide a method for manufacturing a reinforced concrete element with high yield. This paper size applies Chinese National Standard (CNS) A4 specification (210X 297 mm) -4- 542867 A7 B7 V. Description of the invention (2) In order to achieve the above purpose, the present invention provides a method for manufacturing concrete reinforcing steel elements, including the following steps : Bonding the majority of fibers placed in parallel with each other into a fiber bundle with resin material, crossing the fiber bundle extending in one direction and the fiber bundle extending in the other direction to form a grid, and repeating this operation to form a unit stack, where The fiber bundles extending in one direction and the fiber bundles extending in the other direction are stacked at the intersection position of the grid; a separator is installed on the unit lamination formed above, and a second unit lamination is further formed on the separator, and Repeat this operation to form a multi-layer sheet, which inserts a separator between the unit stacks; and pressurize the multi-layer sheet so that the fiber bundles extending in one direction and the fiber bundles extending in the other direction meet Contact adhesion occurs at the intersections of the grids. In the method for manufacturing a concrete reinforcing element of the present invention, it is preferable that the fiber bundles are brought into contact adhesion by pressing the multi-layered sheets from a direction perpendicular to the plane of the fiber bundles crossing each other. In the method for manufacturing a reinforced concrete element according to the present invention, it is preferable to place a spacer in the grid of the lamination so as to define the thickness of the unit lamination. In the method for manufacturing a reinforced concrete element according to the present invention, it is preferable to place a guide plate on the periphery of the lamination so as to define the size of the unit lamination. The present invention further provides a multi-layer formed by the manufacturing method of the present invention. sheet. The present invention further provides a method for manufacturing a reinforced concrete element, which includes cutting the edges on the four sides of the plane of the intersecting fiber bundles of the multilayer sheet of the present invention so as to divide the multi-layer sheet into a plurality of unit stacks. China National Standard (CNS) A4 Specification (210X297mm) (Please read the notes on the back before filling out this page) Order. Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs -5- 542867 A7 B7 V. Description of Invention (4 ) 12 pin 50 unit stack 51 separator 52 spacer 54 pin 60 fiber bundle 61 separator membrane 63 guide plate 71 pin 72 guide plate 73 weight 80 multi-layer sheet 81 pin 82 box frame 83 feed screw ( Please read the notes on the back before filling out this page.) Intellectual Property Bureau of the Ministry of Economic Affairs (detailed description of the preferred embodiment printed by the Industrial and Commercial Cooperatives) The method used to make the reinforced concrete elements of the present invention is characterized in that most units of laminations A separator is stacked to form a multi-layer sheet. Production of a unit sheet As a method of manufacturing a unit sheet, the following can be used Method 'However, the method of this invention is not limited to this' and unit laminations can also be manufactured by other methods. This paper size applies to Chinese National Standard (CNS) A4 specification (210X 297 mm) 7 542867 A7 _B7____ V. Description of the invention (6) Stacked into a multi-layer structure. Parameter 52 indicates a spacer, and parameter 54 indicates a pin with a fiber bundle fixed on it. (Please read the precautions on the back before filling this page) In the method of the present invention Most unit laminations are stacked by inserting a separator inside, and then pressurized so that the intersection of the fiber bundles constituting the unit lamination can produce contact adhesion. By this operation, the unit lamination can be The thickness becomes very uniform. Here, the hardening or light hardening of the resin material is performed at the same time or after the pressure is applied. The separator used here can be any type of separator, as long as it can prevent the composition from being different The fiber bundles of the unit stack can be contact-bonded, and the cross-position of the fiber bundles can appropriately generate contact-bond, and after the multi-layer sheet is formed, it can be lightened. Easily separate each unit stack. For example, this separator can be a release film such as cellophane or polyester film containing polyethylene terephthalate, a release sheet such as tetrafluoro Sheets made of fluororesin such as polyethylene, or metal plates or resin films coated with stearic acid type, silicon type, wax type, or polyvinyl alcohol type release agent. 0 Consumer Cooperatives, Intellectual Property Bureau, Ministry of Economic Affairs Printing and when using a separator with relief, it is possible to generate depressions and protrusions on the laminated sheet, which can increase the adhesion to the concrete. In the method of the present invention, a spacer with a desired height can be initially placed In this grid, unit laminations having a desired thickness are formed. In Figs. 5A and 5B, the spacers 52 are placed between the fiber bundles 50 in the grid, thereby maintaining the ideal locality of the single-feng sheet. In Figures 5A and 5B, parameter 51 indicates a separator. There is no need to put a spacer in each box, and it can be used in -9- this paper size. National National Standard (CNS) A4 size (210X297 mm) 542867 A7 B7 V. Description of the invention (7) A sufficient number of spacers is sufficient so that the pressure applied to the grid during pressurization will remain fixed. (Please read the precautions on the back before filling this page.) The height of the spacer can be selected according to the thickness of the concrete reinforced element to be formed, and spacers with different heights can be used on individual unit stacks. Obtain unit laminations with different thicknesses. Furthermore, a guide plate can be used with the spacer. As described above, it is best to use spacers to obtain a concrete reinforced element with a desired thickness. However, in the case of forming a thin unit lamination, for example, a completed unit lamination having a thickness of about 1 to 3 mm in the form of a grid, since Structural relationships make it difficult to use spacers. In such cases, it is best to use a guide plate. 6A and 6B show a longitudinal cross-sectional view and a top view, respectively, showing a multi-layer laminate in which each unit laminate is thin and no spacer is used. In Fig. 6A, parameter 60 indicates a fiber bundle, and parameter 61 indicates a separator membrane. The guide plate 63 is placed on the periphery of the laminated sheet in the form of a grid, inside the pin 62. Although not shown, the guide plate 63 is also placed on a peripheral portion in a direction perpendicular to the figure. The printed guide plate 63 printed by the employee's consumer cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs has a flat plate shape with holes or grooves on it. The fiber bundle extending toward the pin 62 will pass through the holes or grooves, and it can Maintain the size and shape of the unit stack. The guide plate 63 is covered with a separation film or coated with a release agent so as to prevent the fiber bundles from contacting and adhering under pressure. It is preferable to use the guide plate 63 'in the case of the spacer used in Fig. 5A. The height and position of the guide plate 63 can be determined according to the size of the unit stack and the height of the multi-layer stack. This paper size applies the Chinese National Standard (CNS) A4 specification (210X297 mm) _ 1〇_ 542867 A7 ______B7 V. Description of the invention (8) However, the present invention is not limited to the above situation, and the invention can be implemented without the need Use spacers or guides. (Please read the precautions on the back before filling in this page) The method for pressing the multi-layer sheet can be any method, as long as the cross position of the fiber bundles of the unit stack can be uniformly pressed, however, the multi-layer sheet is the most Preferably, the pressure is applied from a direction perpendicular to the plane of the fiber bundles crossing each other. As shown in Figs. 7A and 7B, as a pressurizing mechanism, for example, most heavy objects of a large amount of metal 73, or a bag containing sand or metal particles can be placed on the top of a multi-layer sheet, so that it is applied to the fiber bundle The load at the crossing position will be uniform. Parameter 71 indicates a pin, and parameter 72 indicates a guide plate. For ease of understanding, fiber bundles in the longitudinal direction relative to the figure are not shown. In addition, a stick or a flat weight can be placed on top of the multi-layer sheet to press it, which can cover the entire longitudinal direction of the multi-layer sheet or the entire top surface of the multi-layer sheet. Moreover, as shown in FIGS. 8A and 8B, a multi-layer sheet 80 can be formed in a box-shaped frame 82, and a reaction force can be applied from the frame by feeding screws 83, and the sheet 80 can be borrowed Pressure is applied by a screw-on method. By this method, the cross position of the fiber bundle can be contact-bonded on the entire surface of the grid by applying a load of 100 to 200 kg / m2 according to the cross-sectional form of the reinforcing element. In Figure 8 A, parameter 8 1 indicates a pin. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs where the fiber bundles are stacked on each other by the equipment shown in FIG. 3, the fiber bundles outside the grid and fixed on the pins 12 are pressed and resinized. After hardening, it will be cut, and the multi-layer sheet will be taken out from the platform 10, and then the fiber bundle protruding from the grid and forming the overlapping part will be cut off during product manufacturing, thus causing waste of materials. When the pin 12 can be moved and pulled out from the grid, the multi-layer sheet can be pulled out from the platform, and by moving these -11-This paper size applies to the Chinese national standard (CNS> A4 specification (21〇X29 < 7 mm) ) 542867 A7 B7 V. Description of the invention (9) (Please read the notes on the back before filling this page) Separator, each unit stack can be separated in order to obtain the majority of unit stacks. Therefore, there will be no overlapping parts, and The entire fiber bundle will form a lattice, and the yield of the material can also be improved. The multi-layer sheet of the present invention is a multi-layer sheet, in which most unit stacks are stacked on each other by inserting a separator therein, and movable pins and It is obtained by taking out the multi-layer sheet from the platform. Since the fiber bundles constituting the unit stack will pass through the holes formed in the guide plate, the multi-layer sheet is fixed on the guide plate, and even when the multi-layer sheet is When it is taken out from the platform, the unit lamination will not be separated and maintain the multi-layer form. Therefore, the lamination can be carried in a multi-layer state, and when it is used, it is cut in the grid four The upper edge, that is, the edge on the four sides of the fiber bundles that cross each other, can separate the multi-layer sheet into the majority of the unit sheets. The intersection of the fiber bundles that make up the unit sheet printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economy is It will not be limited to a rectangular intersection, but it can also be biased. In this case, the shape of the entire grid will not be limited to a rectangle or a rhombus. Moreover, the shape of the individual unit stack will not be limited to The plane can also be a curved shape like a tunnel wall. Such curved laminations can be formed by a curved platform instead of a flat platform and by pressing pressure on the curve. In the present invention, the number of unit laminations is also reduced. It is not particularly limited and can be selected according to the needs of the laminate and the height of the guide plate used in the manufacture. In the present invention, the fibers constituting the fiber bundle can be any fibers used for fiber-reinforced composite materials, and are mainly Glass fiber or carbon fiber. However, the size of this paper applies to China National Standard (CNS) A4 (21〇X29 < 7 mm) " " — -12- 5 42867 A7 _ 5. Description of the invention (M) pieces can therefore increase the production of concrete reinforcing steel elements. Moreover, according to the method of the present invention, it is possible to simultaneously produce concrete reinforced steel elements with different sizes in a single manufacturing method. The multi-layered sheet of the present invention is implemented in a multilayer structure of the laminated sheet. In use, by cutting off the edges on the four sides of the plane of the intersecting fiber bundles, the multi-layered sheet is divided into a plurality of unit laminated sheets, whereby Unit laminations can be obtained. The unit laminations can be applied to reinforced concrete elements used in structural or civil engineering applications, such as gutters, floor covers, or water-tight tunnels and underground tunnels for railway cables. The vertical axis of the cover machine. ---- ^ ---.-- 0— (Please read the precautions on the back before filling out this page.) Printed by the Intellectual Property Bureau of the Ministry of Economic Affairs, Consumer Cooperatives. Standard (CNS) A4 specification (210X297 mm) -14-