Formwork device

Abstract

To provide a formwork device capable of accurately and quickly performing filling work of an age-hardening material into a narrow space, in the filling work of the age-hardening material into a space having a limited vertical interval between an upper structure and a lower structure.SOLUTION: A formwork device 10 includes: a continuous formwork plate 1 in which a plurality of plate-like members arranged in alignment are held in a rotatable state between the plate-like members adjacent to each other; a plurality of formwork plate supporting struts provided with a rotary roller 20 at lower end parts; a rail member 3 installed on a lower structure so as to extend in a depth direction of an age-hardening material filling space and constituting a moving track of the rotary roller 20 of the formwork plate supporting strut 2; and support angle changing means 4 provided so as to be operable from the outside of the age-hardening material filling space and capable of changing an inclination angle of each formwork plate supporting strut by moving the rotary roller 20 at the lower end part 2b of each formwork plate supporting strut along the rail member 3.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a formwork device, and more particularly to a formwork device used for filling a time-hardening material into a space between an upper structure and a lower structure in which the vertical distance is limited. [Background technology]

[0002] For example, the underside of the ends of concrete girders, which are upper structures supported by lower structures such as bridge abutments and piers, is deteriorating due to rainwater leakage and aging, which has become a maintenance issue. Particularly in cold regions, salt damage deterioration occurs in areas affected by salt-containing leakage caused by the use of snow-melting agents, making repairs necessary.

[0003] Furthermore, at the underside of the ends of concrete girders supported by abutments or piers, there are places where the gap between the underside of the concrete girder and the top surface of the abutment or pier is extremely narrow, measuring no more than a few tens of centimeters. Repairs to the underside of the concrete girder in such places involve chipping away the deteriorated concrete using a water jet or similar, then placing formwork plates on the underside of the concrete girder, and repairing the cross section by spraying or filling the space formed by the formwork with a time-hardening material (e.g., concrete or mortar) (see, for example, Patent Documents 1 and 2). [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent No. 4058506 [Patent Document 2] Patent No. 4995945 Summary of the Invention [Problem to be solved by the invention]

[0005] As described above, when repairing the cross-section of a chipped section, when formwork is installed in the gap between the abutment or pier and the underside of the concrete girder and time-hardening material is to be filled in, conventional formwork installation methods include placing a formwork plate on the underside of the concrete girder and supporting the formwork plate with square timbers or the like, or installing a hollow bag (air mat) that can be filled with air or other gases using a small jack.

[0006] However, when the depth of the space formed by the upper and lower structures is long, either method allows the installation of the formwork if the installation location is within the reach of the worker, but the formwork device cannot be easily installed in an area that is beyond the worker's reach. Also, when it is necessary to line up multiple formwork in the depth direction of the space, the installation of the formwork becomes complicated and takes a lot of time. [Means for solving the problem]

[0007] In order to achieve the above object, the present invention provides a formwork device used for filling a time-hardening material into a time-hardening material filling space existing between an upper structure and a lower structure, comprising: a continuous form plate in which a plurality of aligned plate-like members are held in a rotatable state between adjacent plate-like members; a plurality of form plate support columns, each having an upper end rotatably attached to each plate-like member of the continuous form plate and a rotating roller provided at a lower end thereof, for supporting each plate-like member of the continuous form plate from below; a rail member that is installed on the lower structure so as to extend in the depth direction of the space for filling the time-hardening material and that constitutes a moving track for the rotating rollers of the formwork plate support columns; a column angle changing means operable from outside the time-hardening material filling space, the column angle changing means being capable of changing the inclination angle of each of the column by moving the rollers at the lower ends of the column along the rail members; The present invention is characterized by comprising:

[0008] According to this configuration, in a space in which the vertical distance between the upper structure and the lower structure is limited, the inclination angle of the form plate support pillars can be raised, for example, by moving the rotating rollers at the lower ends of the form plate support pillars toward the front of the space along the rail members installed on the lower structure so as to extend in the depth direction of the space. That is, for example, by operating the pillar angle changing means from the front side of the space, each form plate support pillar can be raised, and the continuous form plate attached to the upper ends of the form plate support pillars moves upward. Therefore, the form device according to the present invention is installed in the space with the upper limit partitioned, and the continuous form plate can be positioned at an appropriate height by operating from outside the space. This allows the installation of formwork in the narrow space partitioned above and below to be performed safely and simply, and makes it possible to quickly fill the narrow space with the time-hardening material.

[0009] The invention described in claim 2 is the formwork device described in claim 1, wherein the rail members are installed on both the left and right sides in the time-hardening material filling space, The plate-like member has a generally rectangular shape having a long side that spans the two rail members in a long-side direction, and is adjacent to another plate-like member at an end edge portion of the long side. The formwork plate support columns are arranged in pairs facing each other in correspondence with the rail members, and their upper ends are rotatably attached to both short side ends of the plate-like member, respectively, and the lower ends of the formwork plate support columns facing each other are connected to each other by lower end side connecting shafts that are perpendicular to the depth direction of the time-hardening material filling space, The pillar angle changing means is characterized in that the lower end connecting shaft is pulled toward the front of the time-hardening material filling space, thereby moving the rotating rollers at the lower ends of each of the formwork plate support pillars along the rail member, thereby changing the inclination angle in the upright direction of the formwork plate support pillars.

[0010] According to this configuration, by moving the lower end side connecting shaft that connects the lower ends of the form plate support pillars arranged in pairs facing each other corresponding to the two rail members, these form plate support pillars can be erected simultaneously, and the continuous form plate can be easily moved upward. Furthermore, since the plate-shaped members are attached to the upper ends of the pair of form plate support pillars, the continuous form plate can be stably moved upward.

[0011] The invention described in claim 3 is the formwork device described in claim 2, wherein the support angle changing means is a string-like member having one end attached to the lower end connecting shaft and the other end pulled out in a state capable of being pulled at a front side of the time-hardening material filling space, The formwork plate support pillar connected by the lower end connecting shaft is characterized in that, in an initial state, its upper end side is inclined at a predetermined angle toward the front side of the time-hardening material filling space, and is installed so that the angle of inclination in the upright direction can be changed by pulling the string-shaped member toward the front side.

[0012] According to this configuration, one end of the string-like member is attached to a lower-end connecting shaft that connects the lower ends of the form plate support pillars arranged in pairs opposite each other, and the other end of the string-like member is pulled out to a state in which it can be pulled at the front side of the time-hardening material filling space. By pulling the string-like member toward the front side, the inclination angle of the form plate support pillars becomes larger, and the lower ends of the form plate support pillars can be erected. In other words, the form plate support pillars arranged in pairs opposite each other can be easily moved by simply pulling the string-like member toward the front.

[0013] The invention described in claim 4 is characterized in that, in the formwork device described in claim 3, a winding mechanism is provided on the front side of the time-hardening material filling space, which is capable of pulling the pulled-out string-like member and maintaining the tensioned state.

[0014] According to this configuration, the pulled out string-like member is pulled by the winding mechanism and the tensioned state is maintained, thereby making it possible to easily operate the string-like member.

[0015] The invention described in claim 5 is the formwork device described in claim 2, wherein the support angle changing means is bridge members provided corresponding to the lower end connecting shafts, respectively, and fixedly installed between the rail members; an extendable arm that is installed between the bridge member and the lower end connecting shaft and whose length is extendable and contractible; The moving operation of the rotating rollers of the formwork board support columns via the lower end connecting shaft is performed by the extending and retracting operation of the extendable arm.

[0016] According to this configuration, the lower ends of the formwork plate support columns can be raised simultaneously by moving the lower end connecting shaft that connects the lower ends of the formwork plate support columns using a means other than the string-shaped member.

[0017] The invention described in claim 6 is characterized in that, in the formwork device described in claim 3, it has a restraining means for restraining the inclination angle at approximately a right angle or an angle smaller than approximately a right angle when the inclination angle of the formwork board support pillar is changed to the upright direction by the pillar angle changing means.

[0018] According to this configuration, the inclination angle of the formwork plate support columns is restricted to a predetermined angle by the restricting means, which makes it possible to prevent the inclination angle of the formwork plate support columns from becoming too large unnecessarily, making it difficult to return the formwork plate support columns to their original state.

[0019] The invention described in claim 7 is a method for filling a time-hardening material into a time-hardening material filling space between an upper structure and a lower structure using the formwork device described in any one of claims 1 to 6, comprising: the inclination angle of the form plate support pillars attached to each plate-like member of the continuous form plate is changed by the pillar angle changing means in a direction in which the form plate support pillars rise up successively from the rear side; A time-hardening material is sequentially filled into the space between the plate-like member and the upper structure that has been moved upward due to a change in the upright direction of the inclination angle of the formwork plate support column, The filling operation is repeated from the back side to a predetermined front side of the plate-like member.

[0020] According to this configuration, the time-hardening material can be more accurately and quickly filled into the space between the upper structure and the lower structure, the space having a limited vertical distance. Effect of the Invention

[0021] According to the formwork device and the method of filling a time-hardening material using the formwork device of the present invention, in the work of filling a time-hardening material into a time-hardening material filling space in which the vertical distance between an upper structure and a lower structure is limited, by installing the formwork device in the space, the work of forming the form in the space can be performed by operating from outside the space, making it possible to safely and accurately work in a narrow space. In particular, when the time-hardening material filling space is located at a high place such as a bridge, the safety of the workers is ensured by facilitating the work. [Brief description of the drawings]

[0022] [Figure 1] 1 is a partially cutaway perspective view showing an overall schematic configuration of a formwork device according to an embodiment of the present invention; [Diagram 2] 1 is a side view showing a state in which a leading plate member in a formwork device according to an embodiment of the present invention has been moved upward. [Diagram 3] 1 is a perspective view showing a method of fixing a plate-shaped member to a pillar upper end connecting member and an upper end connecting shaft in a form apparatus according to an embodiment of the present invention. FIG. [Figure 4] 3 is a partially cutaway perspective view showing a means for moving the lower ends of the form plate support columns in the form apparatus according to the embodiment of the present invention. FIG. [Diagram 5] 1A and 1B are oblique views of a wire winding mechanism in a formwork device according to an embodiment of the present invention, where (a) is an oblique view showing the state of the winding mechanism as viewed from the front, and (b) is an oblique view showing the state of the winding mechanism as viewed from the rear. [Figure 6]13 is a side view showing another aspect of the front form plate support column in the form apparatus according to the embodiment of the present invention. FIG. [Figure 7] FIG. 1 shows a construction method using a continuous formwork device according to an embodiment of the present invention, in which (a) is a side view showing the state in which the continuous formwork device has been installed at the installation location, (b) is a side view showing the state in which the leading plate-shaped member has been moved upward and filled with time-hardening material, and (c) is a side view showing the state in which the other plate-shaped members have been moved upward and filled with time-hardening material. [Figure 8] 1A and 1B are side views showing the installation state of a continuous form plate in a formwork device according to an embodiment of the present invention, in which (a) is an initial state in which no upward movement has been performed, and (b) is a state in which the plate-shaped member at the front end has been moved upward. [Figure 9] 1 is a side view showing an embodiment of a continuous formwork apparatus according to the present invention in which an injection hole and an air vent hole are provided in the frontmost formwork plate. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0023] Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. FIG. 1 shows an outline of the overall configuration of a formwork apparatus according to this embodiment. As shown, the formwork apparatus 10 has, as its main components, a continuous formwork plate 1, a plurality of formwork plate support posts 2, a rail member 3, and a post angle changing means 4. 2 shows a state in which the formwork device 10 according to this embodiment is installed in a space with a limited vertical distance between an upper structure 50 and a lower structure 51, which are the installation locations of the formwork device 10. The upper structure 50 is, for example, a concrete girder, and the lower structure 51 is, for example, an abutment or pier of a bridge. The formwork device 10 is used for filling a time-hardening material into a time-hardening material filling space 52 existing between the upper structure 50 and the lower structure 51. That is, the continuous formwork plate 1 constituting the formwork device 10 can be raised in the height direction or lowered conversely by operating from outside the time-hardening material filling space 52, as described later.

[0024] The specific configuration of each component will be described below. As shown in Fig. 1, the continuous formwork plate 1 is composed of a plurality of aligned plate-like members 11-1, 11-2, ... 11-n, and these plurality of plate-like members 11 have a substantially rectangular shape with a predetermined thickness, and are held in a state in which they can rotate with adjacent plate-like members at the long side edge portion 11a side. The number of plate-like members 11 can be appropriately determined depending on the depth direction length of the time-hardening material filling space 52. The material of the plate-like members 11 is not particularly limited as long as it has sufficient strength to withstand the weight of the object (e.g., the time-hardening material) supported by the plate-like members 11, and for example, wood or metal is used. In order to hold the adjacent plate-like members 11 in a rotatable state, for example, as shown in Fig. 1, adjacent column upper end side connecting members 12 (for example, column upper end side connecting member 12-1 arranged at the innermost position and column upper end side connecting member 12-2 adjacent thereto) are rotatably connected to each other by a known connecting mechanism, and the short side end 11b of the plate-like member 11 is attached to the column upper end side connecting member 12 or the short side end 11b of the plate-like member 11 is attached by protruding it. In order to more stably attach the plate-like member 11 to the column upper end side connecting member 12, in this embodiment, an upper end side connecting shaft 13 is further provided at a rotatable connecting point 14 between the adjacent column upper end side connecting members 12 and at the inner end 12a of the column upper end side connecting member 12-1 arranged at the innermost position so as to be perpendicular to the column upper end side connecting member 12. The pillar upper end connecting member 12 and the plate-like member 11 are attached, for example, as shown in Fig. 3, by providing a plate-like member fixing jig 15 having a screw portion on the pillar upper end connecting member 12 and screwing a plate-like member bolt 16 into the screw portion via a through hole provided in the plate-like member 11. It is also possible to use a member in which the pillar upper end connecting member 12 and the plate-like member 11 are integrated. Moreover, the plate-like members 11 can be rotatably connected to each other by providing adjacent plate-like members 11 with a known hinge mechanism, thereby directly connecting the plate-like members 11 to each other so that they can rotate. The material of the pillar upper end connecting member 12 and the upper end connecting shaft 13 is not particularly limited as long as it is a material that has sufficient strength to withstand the weight of the object supported by the pillar upper end connecting member 12 and the upper end connecting shaft 13 (e.g., a plate-shaped member and a time-hardening material), and examples of the material include wood or metal. In this embodiment, taking into consideration that the formwork device 10 will be installed in a location where there is a gap 53 further back in the time-hardening material filling space 52, a vertical plate member 18 extending vertically relative to the plate member 11-1 is provided at the rear end of the rearmost plate member 11-1. When the formwork device 10 is installed in a location where there is no gap 53, the vertical plate member 18 does not need to be provided.

[0025] 1 and 2, the multiple form plate support columns 2 are formed in the shape of plates with a predetermined width and a predetermined length. To support the plate-like members 11 of the continuous form plate 1 from below, the form plate support columns 2 have their upper ends 2a rotatably attached to both short side ends 11b of the plate-like members 11. For example, when attaching the plate-like members 11 to the column upper end connecting members 12 as described above, the form plate support columns 2 are attached to the rotatable connecting points 14 between the adjacent column upper end connecting members 12. When adjacent plate-like members are rotatably connected to each other by a known hinge mechanism as described above, the form plate support column 2 can be attached to this rotatable connection, and the upper end 2a of the form plate support column 2 is rotatably attached by a known connection mechanism. Also, a known rotating roller 20 is provided at the lower end 2b of the form plate support column 2. The material of the formwork plate support pillars 2 is not particularly limited as long as it is a material that has sufficient strength to withstand the weight of the items supported by the formwork plate support pillars (e.g., the time-hardening material and the plate-shaped members), and examples of such materials include metal and reinforced resin. As described later, in this embodiment, two rail members 3 along which the rotating rollers 20 move are installed, one on each side, and so the formwork plate support posts 2 are provided at both ends of each plate-like member 11 of the continuous formwork plate 1. The lower ends of the formwork plate support posts 2 provided at both ends are connected to each other by a lower-end connecting shaft 21 so as to be perpendicular to the moving direction of the rotating rollers 20 of the formwork plate support posts 2. This connection makes it possible to move the lower-end connecting shaft 21 to move the formwork plate support posts 2 provided opposite each other at both ends as a single unit.

[0026] 2, the rail members 3 have a length that fits the depth of the time-hardening material filling space 52, and as described above, in this embodiment, one rail member 3 is installed on each side of the space 52, forming a movement track for the rotating rollers 20 of the formwork plate support columns 2. The cross-sectional shape of the rail members 3 is not limited as long as it can form the movement track for the rotating rollers 20, and an example of the shape is a rail with a C-shaped cross section as shown in FIG. In addition, two rail members 3 are installed, one on each side, to stabilize the form plate support columns 2 and the continuous form plate 1 (plate-like members 11) attached to their upper ends. Therefore, the plate-like members 11 are arranged to straddle the two rail members 3 in the long side direction, stabilizing the position of the continuous form plate 1 when it is raised and lowered. It is possible to install a greater number of rail members 3 depending on the size of the time-hardening material filling space 52 and the size of the continuous formwork plate 1. In this embodiment, the two rail members are connected at both ends by a reinforcing member 30 to form a frame for reinforcement, as shown in Fig. 1.

[0027] Next, the column angle changing means 4 is provided so as to be operable from the outside of the time-hardening material filling space 52, i.e., from the front side, and changes the inclination angle of each form plate support column 2 by moving the rollers 20 at the lower ends of each form plate support column 2 along the rail members 3. In this embodiment, the column angle changing means 4 mainly uses a string-like member, and the specific configuration will be described below with reference to the drawings. As this string-like member, a wire or a rope can be used, and in this embodiment, a wire 40 is used as shown in FIG. 1. In this embodiment, as shown in Fig. 4, a string-like member fixture 22 is provided at the end of the lower connecting shaft 21, and a wire 40 is attached to this string-like member fixture 22. The string-like member fixture 22 is attached to the end of the lower connecting shaft 21. The wire 40 is attached to the string-like member fixture 22 by attaching a wire fastener 23 to the string-like member fixture 22 and attaching one end of the wire 40 to the wire fastener 23, as shown in the figure. The wire 40 can also be attached directly to the string-like member fixture 22 without using the wire fastener 23. When the lower end connecting shaft 21 is not provided, the wire 40 can be attached directly or indirectly to the lower end 2b of the formwork plate support column 2. The wire 40 may be attached directly to the lower end connecting shaft 21. The other end of the wire 40 is pulled out in a state in which it can be pulled on the front side of the formwork device 10, as shown in Figures 1 and 2.

[0028] The pillar angle changing means 4 moves the rollers 20 at the lower ends of the formwork plate support pillars 2 along the rail members 3 by moving each lower connecting shaft 21, but instead of pulling the wire 40 from the front, it is also possible to move the lower connecting shafts 21 by, for example, bridging and fixing bridge members between the rail members 3 corresponding to each lower connecting shaft 21 and providing a means for expanding or contracting the distance between the bridge members and the lower connecting shafts 21. For example, the expansion and contraction means can be an air cylinder, a rack and pinion, a feed screw, or the like.

[0029] In this embodiment, a winding mechanism 41 capable of pulling the wire 40 and maintaining the tensioned state is provided on the front side of the time-hardening material filling space 52, as shown in Figures 1 and 2. The winding mechanism 41 is provided with a winding roller 42 and a winding roller shaft 43, as shown in Figures 5(a) and (b). In this embodiment, two wires 40 (40-1, 40-2) are provided corresponding to the two rail members 3 on the left and right, respectively. The left and right wires 40-1 and 40-2 are wound in the same direction around the take-up roller 42. This makes it possible to simultaneously pull the left and right wires 40-1 and 40-2 by rotating the take-up roller shaft 43 in a clockwise direction when viewed from the front. In addition, by rotating the take-up roller shaft 43 in the opposite direction, counterclockwise, the pulling tension of the wires 40-1 and 40-2 can be gradually relaxed, thereby returning the inclination angle of the formwork board support pillar 2 to its initial state. It is also possible to move the lower connecting shaft 21 by manually pulling the wire 40 without using the winding mechanism 41, and then fix the wire 40 by some other means at an appropriate position. In addition, as shown in Fig. 1, a guide roller 44 is provided between the winding mechanism 41 and the end of the wire 40 on the lower connecting shaft 21 side, which supports the wire 40 from below and ensures smooth winding.

[0030] As for the support 2-1 supporting the form plate 11-1 arranged at the innermost side of the hardening material filling space 52, the form plate support support column provided with the above-mentioned rotating roller 20 or the fixed form plate support support column 2-1 whose lower end is fixed to the fixing member 26 installed on the rail member 3 as shown in FIG. 2 is used. As shown in FIG. 2, the fixed form plate support support column 2-1 is maintained in a state inclined toward the depth direction of the time-hardening material filling space 52. Also, as shown in FIG. 6, the fixed form plate support support column 2-1 arranged at the innermost side and the subsequent form plate support support column 2-2 can be crossed in a side view, and these can be arranged so as to be capable of rotating around the crossing part 24. In addition, the rotating roller 20 is also provided at the upper end of the fixed form plate support support column 2-1, and this rotating roller 20 moves along the rail member 3 provided on the plate-like member 11 or the support upper end side connecting member 12.

[0031] 2 and 6, when the inclination angle of the formboard support columns 2 is changed to the standing direction by the column angle changing means 4, stopping means 34 can be provided on the rail member 3 to stop the inclination angle at an angle substantially perpendicular or smaller than a perpendicular angle. Since the stopping means 34 restricts the inclination angle of each formboard support column 2 to an angle substantially perpendicular or smaller than a perpendicular angle, each formboard support column 2 can be easily returned to its initial state.

[0032] It is also possible to provide a sheet 17 so as to cover the entire continuous form plate 1 in order to prevent the time-hardening material or the like from entering the gaps between the plate-like members 11, and in this embodiment, the sheet 17 is provided as shown in Fig. 1. The sheet 17 also makes it easier to remove the plate-like members 11 from the hardened body of the time-hardening material. There are no particular limitations on the material of the sheet 17 as long as it is difficult for the time-hardening material to adhere to it, and examples of the material for the sheet 17 include polyvinyl chloride or polyethylene.

[0033] Although not shown, a vibrator for applying vibrations to the plate-shaped member 11 can be provided on the underside of the plate-shaped member 11. By vibrating the plate-shaped member 11 with this vibrator, it is possible to ensure that the time-hardening material filled on the plate-shaped member 11 is filled in an accurate and uniform state before hardening.

[0034] Hereinafter, a construction method using a formwork apparatus according to an embodiment of the present invention will be described. A construction method using the formwork device 10 shown in Fig. 1 according to an embodiment of the present invention in a space with a limited vertical distance between an upper structure 50 and a lower structure 51 will be described below with reference to Fig. 7. At the lower end of the upper structure 50, the chipped surface 54 and the reinforcing bar 55 are exposed.

[0035] First, as shown in Fig. 7(a), a formwork device 10 according to an embodiment of the present invention is installed in the time-hardening material filling space 52 between an upper structure 50 and a lower structure 51. That is, the formwork device 10 is installed on the lower structure 51 so that the rail members 3 extend toward the back side of the time-hardening material filling space 52. In this installed state (initial state), as shown in Fig. 8(a), the upper end side of the fixed formwork plate support column 2-1 is inclined toward the back side, and the upper end sides of the formwork plate support columns 2-2 to 2-9 are inclined at a predetermined angle toward the front side of the time-hardening material filling space 52. In this state, the wire 40 is pulled toward the front from the front side of the time-hardening material filling space 52. This action changes the inclination angle of the formwork plate support column 2 in the rising direction, as shown in Fig. 8(b). Specifically, by pulling the wire 40 toward the front, the lower end connecting shaft 21 to which the wire 40 is attached moves toward the front, and as a result, the rotating roller 20 provided at the lower end 2b of the formwork plate support column 2 moves toward the front. At this time, the inclination angle of the formwork plate support column 2 (the angle (α) between the formwork plate support column 2 and the rail member 3 shown in Figs. 8(a) and (b)) becomes larger, i.e., the formwork plate support column 2 rises, and the continuous formwork plate 1 rises. The pulling operation of the wire 40 is first performed on the plate-like member 11-1 arranged at the back. That is, the work of arranging the top surface of the plate-like member 11-1 in a position parallel to and at the same height as the lower end surface 50a of the upper structure 50 (that is, the arrangement position T of the plate-like member in FIG. 7(a)) is performed. Specifically, the form plate support pillars 2-2 attached to the plate-like member 11-1 of the continuous form plate 1 are changed in inclination angle in the upright direction by pulling the wire 40 toward the front side, and the plate-like member 11-1 is moved upward, and the form plate support pillars 2-9 on the front side are appropriately moved toward the front side, so that the plate-like member 11-1 of the continuous form plate 1 is arranged at a predetermined position. At this time, as shown in FIG. 7(b), the upper end of the vertical plate-like member 18 is brought into contact with the vertical surface of the upper structure 50 on the gap portion 53 side.

[0036] Next, the time-hardening material 56 is filled into the filling space formed by the plate-like member 11-1, the vertical plate-like member 18, and the cut surface 54 using the time-hardening material hose 58. The vertical plate-like member 18 can prevent the time-hardening material 56 from flowing out into the gap portion 53 located on the front outside of the filling space.

[0037] Furthermore, in a similar manner, as shown in FIG. 7(c), the filling space formed by the plate-like member 11 and the upper structure 50 is repeatedly filled with the time-hardening material 56 in sequence from the back side to a specified front side.

[0038] After this filling operation is completed and the filled time-hardening material 56 is hardened, the formwork apparatus 10 is removed from the work site. Specifically, the tension of the wires 40 pulling the formwork plate support columns 2 is sequentially released to return each plate-like member 11 to its initial state, and the formwork apparatus 10 is removed from the work site.

[0039] In the case where the space formed by the plate-like member 11 and the chipped surface 54 becomes a closed space and the hose 58 for the time-hardening material cannot be inserted into the space, it is possible to fill the closed space with the time-hardening material 56 by providing the plate-like member 11 with a time-hardening material injection hole 31 and an air vent hole 32 as shown in Fig. 9. This filling is specifically performed by connecting the hose 58 for the time-hardening material to the injection hole 31 for the time-hardening material, filling the closed space with the time-hardening material 56 from the injection hole 31 for the time-hardening material, and then extracting the air that has been in the closed space from the air vent hose 33 connected to the air vent hole 32.

[0040] The present invention is not limited to the above-described embodiment, and various modifications are possible without departing from the spirit and scope of the invention. [Explanation of symbols]

[0041] 1. Continuous formwork plate; 2···Formwork board support column; 2a···Upper end of formwork board support column; 2b···Lower end of formwork board support column; 3. Rail member; 4. Support angle changing means; 10 ···Formwork equipment; 11... Plate-shaped member; 11a: Long side edge portion of the plate-like member; 11b: short side end of the plate-like member; 12....Column upper end connecting member; 12a: End of the connecting member on the upper end side of the support pillar; 13...Top end side connecting shaft; 14 ···Connection point; 15···Fixing fixture for plate-shaped components; 16 ···Bolts for plate-shaped components; 17···sheets; 18...Vertical plate members; 20···Rotating roller; 21...Lower end side connection shaft; 22...Fixing device for string-like members; 23···Wire fastener; 24···intersection; 26... Fixing parts; 30... Reinforcement member for rail member; 31....Injection hole for time-hardening material; 32 Air vent hole; 33···Air bleed hose; 34... restraining means; 40···wire; 41... Winding mechanism; 42 ··· Winding roller; 43... Winding roller shaft; 44···guide roller; 50...upper structure; 50a···Lower end surface of upper structure; 51...lower structure; 52....Space filled with time-hardening material; 53 ···Joint space; 54 ···Chipped surface; 55···Reinforcing bars; 56···Age-hardening material; 58 Hose for time-hardening materials

Claims

1. A formwork device used for filling a time-hardening material into a time-hardening material filling space existing between an upper structure and a lower structure, a continuous form plate in which a plurality of aligned plate-like members are held in a rotatable state between adjacent plate-like members; a plurality of form plate support columns, each having an upper end rotatably attached to each plate-like member of the continuous form plate and a rotating roller provided at a lower end thereof, for supporting each plate-like member of the continuous form plate from below; a rail member that is installed on the lower structure so as to extend in the depth direction of the space for filling the time-hardening material and that constitutes a moving track for the rotating rollers of the formwork plate support columns; a column angle changing means operable from outside the time-hardening material filling space, the column angle changing means being capable of changing the inclination angle of each of the column by moving the rollers at the lower ends of the column along the rail members; A formwork device comprising:

2. The rail members are installed on both the left and right sides of the time-hardening material filling space, The plate-like member has a generally rectangular shape having a long side that spans the two rail members in a long side direction, and is adjacent to another plate-like member at an edge portion of the long side. The formwork plate support columns are arranged in pairs facing each other in correspondence with the rail members, and their upper ends are rotatably attached to both short side ends of the plate-like member, respectively, and the lower ends of the formwork plate support columns facing each other are connected to each other by lower end side connecting shafts that are perpendicular to the depth direction of the time-hardening material filling space, The formwork device described in claim 1, characterized in that the pillar angle changing means changes the inclination angle in the upright direction of the formwork plate support pillars by pulling the lower end connecting shaft toward the front of the time-hardening material filling space, thereby moving the rotating rollers at the lower ends of each formwork plate support pillar along the rail member.

3. The support angle changing means is a string-like member having one end attached to the lower end connecting shaft and the other end pulled out in a state capable of being pulled at a front side of the time-hardening material filling space, The formwork device described in claim 2, characterized in that, in an initial state, the formwork plate support pillar connected by the lower end connecting shaft is inclined at a predetermined angle toward the front side of the time-hardening material filling space at its upper end side, and the formwork device is installed so that the angle of inclination in the upright direction can be changed by pulling the string-shaped member toward the front side.

4. 4. The formwork device according to claim 3, further comprising a winding mechanism provided at the front side of the time-hardening material filling space, the winding mechanism being capable of pulling the pulled-out string-like member and maintaining the string-like member in a tensioned state.

5. The support angle changing means is bridge members provided corresponding to the lower end connecting shafts, respectively, and fixedly installed between the rail members; an extendable arm that is installed between the bridge member and the lower end connecting shaft and whose length is extendable and contractible; 3. The form device according to claim 2, further comprising: a lower connecting shaft for connecting the lower end of the form plate support column to the form plate support column;

6. The formwork device as described in claim 3, characterized in that it has a restraining means for restraining the inclination angle at an angle approximately right angle or less than approximately right angle when the inclination angle of the formwork board support pillar is changed to the upright direction by the pillar angle changing means.

7. A method for filling a time-hardening material into a time-hardening material filling space between an upper structure and a lower structure by using the formwork device according to any one of claims 1 to 6, the inclination angle of the form plate support pillars attached to each plate-like member of the continuous form plate is changed by the pillar angle changing means in a direction in which the form plate support pillars rise up successively from the rear side; A time-hardening material is sequentially filled into the space between the plate-like member and the upper structure that has been moved upward due to a change in the upright direction of the inclination angle of the formwork plate support column, The method for filling a time-hardening material into a filling space for a time-hardening material is characterized in that the filling operation is repeated from the back side to a predetermined front side of the plate-like member.

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