Formwork fixture, formwork joint, concrete paved body production method, and formwork

Abstract

To provide a formwork fixture to fix a formwork forming a concrete paved body having grooves.SOLUTION: A formwork fixture 20A comprises a first member 21, a second member 22, and a fixture member 23. The first member 21 and the second member 22 sandwich an upper wall 11 of a formwork 10. The fixture member 23 fixes the first member 21 and the second member 22.SELECTED DRAWING: Figure 5

Description

[Technical field]

[0001] The present invention relates to a form fixing device for fixing a form for forming a concrete pavement having a groove.The present invention relates to a form joining device for joining a form for forming a concrete pavement having a groove.The present invention relates to a method for manufacturing a concrete pavement having a groove.The present invention relates to a form for forming a concrete pavement having a groove. [Background technology]

[0002] 2. Description of the Related Art When concrete pavement is laid on the ground, grooves are sometimes provided in the concrete pavement in order to prevent cracks in the concrete pavement or to improve the design of the concrete pavement. Summary of the Invention [Problem to be solved by the invention]

[0003] SUMMARY OF THE PRESENT EMBODIMENT An object of the present invention is to provide a form fixture for fixing a form for forming a concrete pavement having grooves.

[0004] SUMMARY OF THE PRESENT EMBODIMENT An object of the present invention is to provide a form fastener for fastening forms for forming a concrete pavement having grooves.

[0005] SUMMARY OF THE PRESENT EMBODIMENT An object of the present invention is to provide a method for manufacturing a concrete pavement having grooves.

[0006] SUMMARY OF THE PRESENT EMBODIMENT An object of the present invention is to provide a form for forming a concrete pavement having grooves. [Means for solving the problem]

[0007] The present application provides the invention in the following aspects. (Section 1) 1. A form fixture for fixing together a pair of forms used in forming a grooved concrete pavement, each form having a top wall and a side wall extending downwardly from the top wall, a first member at least partially disposed above or below the upper wall; A second member, at least a portion of which is disposed above or below the upper wall and sandwiches the upper wall together with the first member; a fixing member that fixes the first member and the second member; A formwork fixture comprising:

[0008] (Section 2) One of the first member and the second member is a formwork movement restricting part disposed between the upper walls of the pair of formworks and configured to restrict the pair of formworks from moving in a direction toward each other. Item 1. The formwork fixture described in item 1.

[0009] (Section 3) A form fixture for fixing together a first pair of forms used in forming a concrete pavement having a groove, and for fixing together a second pair of forms used in forming a concrete pavement having a groove, and for connecting the first pair of forms with the second pair of forms, each form having a top wall and a side wall extending downwardly from the top wall, a first member having a length extending from the first pair of formwork to the second pair of formwork, at least a portion of which is disposed above or below the upper wall of the first pair of formwork and the upper wall of the second pair of formwork; At least two second members sandwiching the upper wall together with the first member, at least a portion of the at least two second members being disposed above or below the other of the upper wall of the first pair of forms and the upper wall of the second pair of forms; At least two fixing members that fix the first member and the second member; A formwork fixture comprising:

[0010] (Section 4) One of the first member and the second member includes a formwork movement restricting portion disposed between the upper walls of the first pair of formworks and between the upper walls of the second pair of formworks, the formwork movement restricting portion restricting the first pair of formworks from moving in a direction approaching each other and the second pair of formworks from moving in a direction approaching each other. Item 3. The formwork fixture according to claim 3.

[0011] (Section 5) The first member includes the formwork movement restricting portion and a first clamping portion disposed below the upper wall, the second member includes a second clamping portion disposed on the upper wall and configured to clamp the upper wall together with the first clamping portion; the second member is rotatable relative to the fixed member when not fixed by the fixed member; The width of the second member is smaller than the width of the formwork movement restricting portion. Item 2 or 4. Formwork fixing device.

[0012] (Section 6) The pair of formwork pieces have a movement prevention portion for preventing the pair of formwork pieces from moving in directions away from each other, The first member has a receiving portion that receives the movement prevention portion. Item 6. The formwork fixture according to any one of items 1 to 5.

[0013] (Section 7) The first member has a through hole for inserting a positioning tool for fixing the formwork fixture to the ground. Item 3. The formwork fixture according to claim 3.

[0014] (Section 8) A form connector for connecting a pair of forms fixed to each other and used in forming a concrete pavement having a groove to a form arranged non-parallel to the pair of forms, each form having a top wall and a side wall extending downwardly from the top wall, A first lower clamping body at least partially disposed under the upper walls of the pair of formworks; An upper clamping body is disposed on the upper walls of the pair of formwork frames and on the upper walls of the non-parallelly disposed formwork frames, and clamps the upper walls of the pair of formwork frames together with the first lower clamping body; A second lower clamping body at least partially disposed under the upper wall of the non-parallelly arranged formwork and clamping the upper wall of the non-parallelly arranged formwork together with the upper clamping body; a first fixing member that fixes the first lower clamping body and the upper clamping body; a second fixing member that fixes the upper clamping body and the second lower clamping body; A formwork fastener comprising:

[0015] (Section 9) A form connector for connecting a pair of forms fixed to each other for use in forming a concrete pavement having a groove to a form disposed perpendicular to the pair of forms, each form having a top wall and a side wall extending downwardly from the top wall, A lower clamping body at least partially disposed under the upper walls of the pair of formworks; An upper clamping body is disposed on the upper walls of the pair of formworks and on the upper walls of the formworks disposed perpendicularly, and has a formwork fastening portion that engages with the formworks disposed perpendicularly, and clamps the upper walls of the pair of formworks together with the lower clamping body; A fixing member that fixes the lower clamping body and the upper clamping body; A formwork fastener comprising:

[0016] (Section 10) The upper clamping body further includes a water line fastening portion for fastening the water line. Item 8 or 9. The formwork fastener according to item 8 or 9.

[0017] (Section 11) The upper clamping body has a through hole for inserting a positioning tool for fixing the formwork fixture to the ground. Item 8 or 9. The formwork fastener according to item 8 or 9.

[0018] (Section 12) A step of arranging a pair of formworks having an upper wall and a side wall extending downward from the upper wall so that a gap is formed between the upper walls, and arranging the formwork movement restricting portion of the formwork fixing device described in item 2 or 4 in the gap, and fixing the pair of formworks by the formwork fixing device; A step of pouring concrete; After the concrete has hardened, removing the form fixture from the pair of forms and stripping the pair of forms; A method for manufacturing a concrete pavement having grooves comprising:

[0019] (Section 13) A step of arranging a pair of formworks having an upper wall and a side wall extending downward from the upper wall so that a gap is formed between the upper walls, and arranging the formwork movement restricting portion of the formwork fixing device described in item 5 in the gap, and fixing the pair of formworks by the formwork fixing device; A step of pouring concrete; After the concrete has hardened, loosening the fixing member, rotating the second member and the fixing member so that the second member and the fixing member can pass through the gap, and dropping the form fixing member from the gap to remove the form fixing member from the pair of formworks, and removing the pair of formworks; A method for manufacturing a concrete pavement having grooves comprising:

[0020] (Section 14) A form for forming a concrete pavement having a groove, comprising: The upper wall and a side wall extending downward from the upper wall; A formwork comprising:

[0021] (Section 15) Further provided with a movement prevention part that restricts the outward movement of the formwork, Item 15. The formwork according to item 14.

[0022] (Section 16) The movement prevention portion is a hemming bending portion. Item 16. The formwork according to item 15.

[0023] (Section 17) The upper wall has a through hole for inserting a positioning tool for fixing the formwork to the ground. Item 17. The formwork according to any one of items 14 to 16. Effect of the Invention

[0024] By using the formwork fastener of the present invention, a pair of formwork pieces can be fixed together. [Brief description of the drawings]

[0025] [Figure 1] FIG. 2 is a plan view of a plurality of forms assembled using form fixtures and form connectors, showing an example of the form arrangement when manufacturing a concrete pavement. [Figure 2A] FIG. [Figure 2B] FIG. [Diagram 3] FIG. 2 is an enlarged perspective view of a portion III in FIG. [Figure 4] FIG. 2 is an enlarged perspective view of a portion IV in FIG. [Diagram 5] FIG. 2 is an exploded perspective view of the formwork fixing device according to the first embodiment. [Figure 6A] FIG. 2 is a plan view of a first member of the formwork fixing device according to the first embodiment. [Figure 6B] FIG. 2 is a front view of a first member of the formwork fixing device according to the first embodiment. [Figure 7] FIG. 4 is a plan view of a second member of the formwork fixing device according to the first embodiment. [Figure 8A] FIG. 8 is a cross-sectional view taken along line VIIIA-VIIIA in FIG. [Figure 8B] FIG. 2 is an enlarged plan view of a portion IV in FIG. [Figure 9] FIG. 2 is an enlarged perspective view of a portion IX in FIG. [Figure 10] FIG. 11 is an exploded perspective view of a formwork fixing device according to a second embodiment. [Figure 11] 10 is a cross-sectional view taken along line XI-XI of FIG. 9. [Figure 12] FIG. 2 is an enlarged perspective view of a portion XII in FIG. [Figure 13] FIG. 2 is an exploded perspective view of the formwork fastener according to the first embodiment. [Figure 14] 14 is a cross-sectional view taken along line XIV-XIV in FIG. 12. [Figure 15] FIG. 12 is a view taken along the line XV-XV in FIG. [Figure 16] FIG. 2 is an enlarged perspective view of a portion XVI in FIG. [Figure 17] FIG. 11 is an exploded perspective view of a formwork fastener according to a second embodiment. [Figure 18] 18 is a cross-sectional view taken along line XVIII-XVIII in FIG. 16. [Figure 19] 19 is a cross-sectional view taken along line XIX-XIX in FIG. 18. [Figure 20A] 2 is a cross-sectional view taken along line XXA-XXA in FIG. 1. [Figure 20B] FIG. 2 is a cross-sectional view illustrating the manufacturing process of a concrete pavement, showing the state after concrete has been poured. [Figure 20C] FIG. 2 is a cross-sectional view of a concrete pavement having grooves. [Figure 21] FIG. 13 is a plan view illustrating a method for removing the formwork fixing device. [Figure 22] FIG. 13 is a front view of a formwork according to a modified example. [Figure 23] FIG. 11 is a cross-sectional view showing a state in which a form fastener according to a modified example is used. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0026] The present invention will be described with reference to the drawings. When there are a plurality of identical components, in order to make the drawings easier to understand, only some of the components may be labeled with reference numerals.

[0027] As shown in Fig. 1, a formwork 10, formwork fixtures 20A, 20B, and formwork connectors 30A, 30B are used to produce a concrete pavement having grooves (hereinafter, sometimes simply referred to as a "pavement") on the ground. The pavement is, for example, a pavement (concrete floor) for a parking lot.

[0028] When forming a pavement, an outer perimeter form 10 that defines the outline of the pavement is placed on the ground. Furthermore, multiple pairs of formwork 10 (multiple pairs of formwork 10) fixed to each other by formwork fasteners 20A, 20B are placed inside the outer perimeter formwork 10 at positions where trenches are to be formed. Ends of the pair of formwork 10 are joined to the outer perimeter formwork 10 by formwork connectors 30A, 30B. Concrete is poured into the space enclosed by the formwork 10.

[0029] <1. Formwork> First, the formwork 10 will be described with reference to Figures 2A to 4. As shown in Figures 2A and 2B, the formwork 10 includes a longitudinal upper wall 11 extending horizontally, a side wall 12 extending downward from the upper wall 11, and a movement prevention portion 13 provided on the underside of the upper wall 11. As shown in Figure 2B, the formwork 10 is generally inverted L-shaped when viewed from the front.

[0030] The formwork 10 is made of, for example, a metal material, preferably a steel plate, and more preferably a galvanized steel plate. The formwork 10 is an integrally molded product manufactured by bending a single metal plate material by, for example, pressing.

[0031] For ease of explanation, as shown in Fig. 2A, the "longitudinal direction of upper wall 11" is referred to as the "length direction," and the "short-side direction of upper wall 11" perpendicular to the longitudinal direction of upper wall 11 is referred to as the "width direction." In addition, the direction perpendicular to the longitudinal direction and width direction is referred to as the "up-down direction." The up-down direction is also the vertical direction.

[0032] As shown in Figures 2A and 2B, the upper wall 11 is flat. The upper wall 11 has a plurality of through holes 111. As shown in Figure 3, a positioning tool 40 for fixing the formwork 10 to the ground is inserted into the through holes 111. The positioning tool 40 is a rod such as a stake. The upper wall 11 has a through hole 112 at each of both ends in the length direction. By overlapping the length direction ends of the plurality of formworks 10 so that their through holes 112 are aligned and inserting connecting members such as pins into the through holes 112, the plurality of formworks 10 can be connected in a straight line or at a right angle.

[0033] As shown in Figures 2A and 2B, the side wall 12 extends downward from a first end in the width direction of the upper wall 11. The side wall 12 is substantially perpendicular to the upper wall 11. As shown in Figure 2B, the side wall 12 has a first surface 12a and a second surface 12b opposite to the first surface 12a. The first surface 12a is the surface in contact with concrete.

[0034] The movement preventing portion 13 is a portion for preventing the pair of formwork 10 from moving outward in the width direction (i.e., in the direction in which the pair of formwork 10 moves away from each other). The mechanism by which the movement preventing portion 13 prevents the pair of formwork 10 from moving will be described later. As shown in Figs. 2A and 2B, the movement preventing portion 13 is provided at a second end portion in the width direction of the upper wall 11, and on the lower surface of the upper wall 11. The movement preventing portion 13 is, for example, a hemming bending portion, that is, the movement preventing portion 13 is a portion in which a part of the upper wall 11 is bent so as to come into contact with the lower surface of the upper wall 11.

[0035] <2. Formwork fixing device> Next, the formwork fixing devices 20A and 20B will be described. For ease of explanation, the directions of each component of the formwork fixing devices 20A and 20B will be explained based on the "length direction," "width direction," and "up-down direction" of the formwork 10 already explained. Furthermore, among the components of the formwork fixing devices 20A and 20B, components having the same structure and function will be given the same reference numerals, and explanations of the structure and function of those components will be omitted.

[0036] [2-1. First embodiment] First, a formwork fixing device 20A according to a first embodiment will be described with reference to Figs. 4 to 8B.

[0037] As shown in FIG. 4, the form fixture 20A is used to secure a pair of opposing forms 10 to each other.

[0038] As shown in Fig. 5, formwork fixing device 20A includes a first member 21, a second member 22, and a fixing member 23. As shown in Fig. 8A and Fig. 8B, upper walls 11 of a pair of formworks 10 are sandwiched from above and below by first member 21 and second member 22, and first member 21 and second member 22 are fixed by fixing member 23, so that a gap S is provided between the upper walls 11 of the pair of formworks 10 and the pair of formworks 10 are fixed to each other.

[0039] 5, the fixing member 23 is, for example, a screw. When the first member 21 and the second member 22 are fixed by the fixing member 23, the first member 21 and the second member 22 cannot rotate relative to each other and the fixing member 23. When the fixing by the fixing member 23 is released, the first member 21 and the second member 22 become rotatable relative to each other and the fixing member 23.

[0040] 5, the first member 21 has a longitudinal shape that is longer in the width direction than in the length direction. The first member 21 has a length that extends from one formwork 10 to the other formwork 10. The first member 21 is attached to the pair of formworks 10 so that the width direction (longitudinal direction) of the first member 21 is parallel to the width direction of the pair of formworks 10.

[0041] The first member 21 includes a base 211 and two side plate portions 212 rising from the base 211. The first member 21 is made of, for example, a metal material, and preferably a galvanized steel plate. The first member 21 is an integrally molded product manufactured by bending a single metal plate material by, for example, press working.

[0042] 6A, the base 211 has an attachment portion 2111 for attaching the fixing member 23. When the fixing member 23 is a screw, the attachment portion 2111 is a screw hole having a female thread. The attachment portion 2111 is located below the gap S between the pair of formworks 10.

[0043] 5 and 6B, the two side plate portions 212 rise up from both longitudinal ends of the base portion 211. Each side plate portion 212 includes two first clamping portions 2121, two first receiving portions 2122, and one formwork movement restricting portion 2123.

[0044] 8A, the first clamping portion 2121 is disposed below the upper wall 11 of the formwork 10 and clamps the upper wall 11 together with the second member 22. The upper end surface of the first clamping portion 2121 contacts the lower surface of the upper wall 11. The upper end surface of the first clamping portion 2121 is preferably a flat surface.

[0045] The first receiving portion 2122 receives the movement prevention portion 13 of the formwork 10. As shown in FIG. 5 and FIG. 6B, the first receiving portion 2122 is provided inward in the width direction from the first clamping portion 2121. The first receiving portion 2122 is a portion recessed downward from the first clamping portion 2121. As shown in FIG. 8A, when the formwork fixing device 20A is attached to a pair of formworks 10, the movement prevention portion 13 is disposed in the first receiving portion 2122. By disposing the movement prevention portion 13 in the first receiving portion 2122, even if a force is applied to the formwork 10 in the width direction outward, the formwork 10 cannot move any further in the width direction outward (i.e., in the direction in which the pair of formworks 10 move away from each other) at the point when the movement prevention portion 13 comes into contact with the edge portion of the first receiving portion 2122 (the width direction inner end of the first clamping portion 2121).

[0046] As shown in FIG. 4 and FIG. 8A, the formwork movement restricting portion 2123 is disposed in the gap S between the pair of formworks 10 when the formwork fixing device 20A is attached to the pair of formworks 10. The formwork movement restricting portion 2123 restricts the pair of formworks 10 from moving in a direction in which they approach each other. As shown in FIG. 5 and FIG. 6B, the formwork movement restricting portion 2123 is provided between the two first receiving portions 2122 and extends upward from the upper end of the first clamping portion 2121. As shown in FIG. 8A, both ends of the formwork movement restricting portion 2123 in the width direction preferably contact the second end of the upper wall 11 of each formwork 10. Since the formwork movement restricting portion 2123 is disposed in the gap S between the pair of formworks 10, even if a force is applied to the formwork 10 inward in the width direction, the formwork 10 cannot move further inward in the width direction when the second end of the upper wall 11 contacts the formwork movement restricting portion 2123.

[0047] As shown in Figs. 5 and 7, the second member 22 is made of a plate material. The second member 22 is made of, for example, a metal material, preferably a galvanized steel plate. The second member 22 is elongated in that its width direction is longer than its length direction. The second member 22 has a length extending from one formwork 10 to the other formwork 10. The second member 22 is placed on the upper walls 11 of the pair of formworks 10 so that its width direction (longitudinal direction) is parallel to the width direction of the pair of formworks 10.

[0048] The width W1 of the second member 22 (the maximum dimension in the length direction of the second member 22; see FIG. 7) is smaller than the width W2 of the formwork movement restricting portion 2123 (the length in the width direction of the formwork movement restricting portion 2123; see FIG. 6B). In other words, the width W1 of the second member 22 is smaller than the width W3 (see FIG. 8B) of the gap S between the pair of formworks 10. As will be described in detail later, by having the second member 22 have such a width W1, when removing the formwork fixing device 20A from the pair of formworks 10, the second member 22 can be dropped from the gap S by making the longitudinal direction of the second member 22 parallel to the longitudinal direction of the pair of formworks 10 (see FIG. 21).

[0049] As shown in FIGS. 5 and 7, the second member 22 has one opening 221, two second clamping portions 222, and two second receiving portions 223.

[0050] The opening 221 penetrates the second member 22. The fixing member 23 is inserted into the opening 221. The central axis of the opening 221 coincides with the central axis of the attachment portion 2111.

[0051] As shown in Fig. 8A, the lower surfaces of the two second clamping portions 222 contact the upper surfaces of the upper walls 11 of the pair of formwork 10. The lower surfaces of the second clamping portions 222 are preferably flat. The second clamping portions 222 clamp the upper walls 11 together with the first clamping portions 2121 of the first member 21. In this manner, the pair of formwork 10 can be fixed to each other by the formwork fixing device 20A.

[0052] As shown in Figures 5 and 7, the second receiving portion 223 is provided inward in the width direction from the second clamping portion 222 and at a position corresponding to the formwork movement restricting portion 2123. The second receiving portion 223 is a portion that is recessed in the length direction from the second clamping portion 222. In other words, the width of the portion where the second receiving portion 223 is provided is smaller than the width of the second clamping portion 222. As shown in Figures 4 and 8A, when the formwork fixing device 20A is attached to a pair of formwork 10, the formwork movement restricting portion 2123 is disposed within the second receiving portion 223.

[0053] [2-2. Second embodiment] A formwork fixing device 20B according to a second embodiment will be described with reference to Figs.

[0054] As shown in FIG. 9, the form fixture 20B is used to fix a pair of opposing formwork 10A to each other, fix a pair of opposing formwork 10B to each other, and connect the pair of formwork 10A and the pair of formwork 10B in a straight line. The angle between the pair of formwork 10A and the pair of formwork 10B after connection is 180 degrees. The longitudinal end faces of the pair of formwork 10A are in contact with the longitudinal end faces of the pair of formwork 10B. For convenience of explanation, one pair of formwork is labeled with the symbol "10A" and the other pair of formwork is labeled with the symbol "10B", but both the formwork 10A and the formwork 10B have the same structure as the formwork 10 described above.

[0055] As shown in FIG. 10, the formwork fixture 20B includes one first member 21', two second members 22, and two fixing members .

[0056] The first member 21' includes a base 211', a pair of side plate portions 212 provided at each end of the length direction of the base 211', and two reinforcing portions 213 extending downward from the base 211'. The first member 21' is made of, for example, a metal material, preferably a galvanized steel plate. The first member 21' is an integrally molded product manufactured by bending a single metal plate material by, for example, press working.

[0057] The base portion 211' has a length that reaches from the form 10A to the form 10B. The base portion 211' has two mounting portions 2111. One mounting portion 2111 is provided in a portion between a pair of side plate portions 212 provided at one end in the longitudinal direction. The other mounting portion 2111 is provided in a portion between the pair of side plate portions 212 provided at the other end in the longitudinal direction.

[0058] The base 211' has a through hole 2112 at approximately the center in the longitudinal direction. As shown in Fig. 9, the through hole 2112 is located below the gap S and is exposed from the gap S. A positioning tool 40 for fixing the form fixing tool 20B to the ground (and therefore for fixing the form 10A and the form 10B to the ground) is inserted into the through hole 2112.

[0059] The pair of side plate portions 212 provided at one end in the longitudinal direction of the base 211' are disposed below the upper walls 11 of the pair of formworks 10A, excluding the formwork movement restricting portion 2123, and the formwork movement restricting portion 2123 is disposed in the gap S between the pair of formworks 10A. The pair of side plate portions 212 provided at the other end in the longitudinal direction of the base 211' are disposed below the upper walls 11 of the pair of formworks 10B, excluding the formwork movement restricting portion 2123, and the formwork movement restricting portion 2123 is disposed in the gap S between the pair of formworks 10B.

[0060] 10, each reinforcing portion 213 extends downward from an end portion in the width direction of the base portion 211'. The reinforcing portions 213 reinforce the base portion 211' so that the base portion 211' does not bend or twist.

[0061] 9, one second member 22 is placed on the upper wall 11 of the pair of forms 10A. The other second member 22 is placed on the upper wall 11 of the pair of forms 10B.

[0062] 9 and 11, the upper walls 11 of the pair of formworks 10A are sandwiched between the first clamping portion 2121 of the first member 21' and the second clamping portion 222 of the second member 22, which are arranged on the pair of formworks 10A side, and the first member 21' and the second member 22 are fixed by one fixing member 23, so that the pair of formworks 10A are fixed to each other. Also, the upper walls 11 of the pair of formworks 10B are sandwiched between the first clamping portion 2121 of the first member 21' and the second clamping portion 222 of the second member 22, which are arranged on the pair of formworks 10B side, and the first member 21' and the second member 22 are fixed by the other fixing member 23, so that the pair of formworks 10B are fixed to each other. Then, by fixing both the pair of formworks 10A and the pair of formworks 10B with the formwork fixing device 20B, the pair of formworks 10A and the pair of formworks 10B can be joined together.

[0063] <3. Formwork fasteners> The form fasteners 30A and 30B will be described. For ease of explanation, the directions of each component of the form fasteners 30A and 30B will be explained based on the "length direction," "width direction," and "up-down direction" of the formwork 10 already explained. Furthermore, among the components of the form fasteners 30A and 30B, components having the same structure and function will be given the same reference numerals, and explanations of the structure and function of those components will be omitted.

[0064] [3-1. First embodiment] A formwork fastener 30A according to a first embodiment will be described with reference to Figs.

[0065] As shown in FIG. 12, the form connector 30A is used to connect a pair of formworks 10A fixed to each other and a formwork 10C arranged non-parallel to the pair of formworks 10A. The pair of formworks 10A are preferably fixed to each other by formwork fixtures 20A and / or formwork fixtures 20B. The angle between the formworks 10A and 10C may be a right angle or an angle other than a right angle (i.e., an acute angle or an obtuse angle). For convenience of explanation, the pair of formworks is labeled with the symbol "10A" and the formwork arranged non-parallel is labeled with the symbol "10C", but both the pair of formworks 10A and 10C have the same structure as the formwork 10 described above.

[0066] As shown in FIG. 13, the formwork fastener 30A includes an upper clamping body 31, a first lower clamping body 32, a second lower clamping body 33, a first fixing member 34, and a second fixing member 35.

[0067] The first fixing member 34 fixes the upper clamping body 31 and the first lower clamping body 32. The second fixing member 35 fixes the upper clamping body 31 and the second lower clamping body 33. The first fixing member 34 and the second fixing member 35 are, for example, screws.

[0068] As shown in FIG. 14, the upper clamping body 31, together with the first lower clamping body 32, clamps the upper wall 11 of the pair of formwork 10A, and, as shown in FIG. 15, together with the second lower clamping body 33, clamps the upper wall 11 of the formwork 10C.

[0069] 13, the upper clamping body 31 includes a main body 311 and a water line retainer 312. The upper clamping body 31 is made of, for example, a metal material, preferably a galvanized steel plate. The upper clamping body 31 is an integrally molded product manufactured by bending a single metal plate material by, for example, pressing.

[0070] 12, the main body portion 311 is disposed on the upper wall 11 of formwork 10A and on the upper wall 11 of formwork 10C. The main body portion 311 has a length that extends from the upper wall 11 of formwork 10A beyond the upper wall 11 of formwork 10C and protrudes from the upper wall 11 of formwork 10C. The lower surface of the main body portion 311 contacts the upper surface of the upper wall 11. The lower surface of the main body portion 311 is preferably a flat surface.

[0071] 13, the main body 311 has a through hole 3111. The through hole 3111 is located above the gap S and communicates with the gap S. A positioning tool 40 for fixing the form fitting tool 30A to the ground (and therefore for fixing the formwork 10A and the formwork 10C to the ground) is inserted into the through hole 3111.

[0072] 13, the main body 311 has a longitudinal through hole 3112 extending in the length direction of the formwork 10A. The first fixing member 34 is inserted into the through hole 3112. The first fixing member 34 is movable in the longitudinal direction of the through hole 3112 when the first fixing member 34 is loosened. Since the first fixing member 34 is movable in the longitudinal direction of the through hole 3112, the attachment position of the first lower clamping body 32 can be changed.

[0073] As shown in FIG. 13, the main body 311 has a through hole 3113 for inserting the second fixing member 35 into the portion protruding from the upper wall 11 of the formwork 10C.

[0074] As shown in FIG. 13, the water line holder 312 extends upward from the main body 311. The water line is wound around or hooked onto the water line holder 312. The water line holder 312 has a water line movement restricting portion 3121 for preventing the water line from shifting in the vertical direction. The water line movement restricting portion 3121 is, for example, a recess for receiving the water line. The shape of the recess is not particularly limited, and may be a triangular groove or a round groove. When the water line enters the recess, the movement of the water line in the vertical direction is restricted.

[0075] As shown in FIG. 14, the first lower clamping body 32 is disposed below the upper walls 11 of the pair of formworks 10A.

[0076] As shown in FIG. 13, the first lower clamping body 32 includes a first supporting member 321 and a first clamping member 322.

[0077] The first support member 321 is disposed below the first clamping member 322 and supports the first clamping member 322 from below. The first support member 321 is elongated in that the width direction is longer than the length direction. The first support member 321 has a length that extends from one formwork 10A to the other formwork 10A. The first support member 321 is disposed such that its width direction (longitudinal direction) is parallel to the width direction of the pair of formworks 10A.

[0078] The first support member 321 includes a base portion 3211 and two side plate portions 3212 rising from the base portion 3211. The first support member 321 is made of, for example, a metal material, and preferably a galvanized steel plate. The first support member 321 is an integrally molded product manufactured by bending a single metal plate material by, for example, press working.

[0079] The base 3211 has an attachment portion 3211a for attaching the first fixing member 34. When the first fixing member 34 is a screw, the attachment portion 3211a is a screw hole having a female thread. The attachment portion 3211a is located below the gap S between the pair of formworks 10A.

[0080] The two side plate portions 3212 rise from both ends of the base portion 3211 in the longitudinal direction. Each side plate portion 3212 includes two contact portions 3212a and one extending portion 3212b. The two contact portions 3212a are upper end surfaces of both ends of the side plate portion 3212 in the width direction, and can come into contact with the lower surface of the first clamping member 322. Each contact portion 3212a is preferably a flat surface. The extending portion 3212b is provided in the center of the side plate portion 3212 in the width direction, and extends above the upper end of the contact portion 3212a.

[0081] The first clamping member 322 is made of a longitudinal plate material that is longer in the width direction than in the length direction. The first clamping member 322 has a length that reaches from one formwork 10A to the other formwork 10A. The first clamping member 322 is disposed so that its width direction (longitudinal direction) is parallel to the width direction of the pair of formworks 10A. The first clamping member 322 is made of, for example, a metal plate material, and is preferably made of a galvanized steel plate material.

[0082] The first holding member 322 has an opening 3221 for inserting the first fixing member 34. The central axis of the opening 3221 coincides with the central axis of the attachment portion 3211a.

[0083] The first clamping member 322 has a recess 3222 at the center in the width direction and at a position corresponding to the extending portion 3212b, which is recessed in the length direction compared to both ends of the first clamping member 322. As shown in FIG. 14, the extending portion 3212b is disposed within the recess 3222.

[0084] As shown in Fig. 14, the first clamping member 322 is disposed between the first support member 321 and the movement prevention portions 13 of the pair of formwork 10A. The upper surface of the first clamping member 322 contacts the movement prevention portions 13 of the pair of formwork 10A. The upper surface of the first clamping member 322 is preferably a flat surface. The lower surface of the first clamping member 322 contacts the contact portion 3212a of the side plate portion 3212. The lower surface of the first clamping member 322 is preferably a flat surface.

[0085] As shown in FIG. 15, the second lower clamping body 33 is disposed below the upper wall 11 of the formwork 10C.

[0086] As shown in FIG. 13, the second lower clamping body 33 includes a second supporting member 331 and a second clamping member 332.

[0087] The second support member 331 is disposed below the second clamping member 332 and supports the second clamping member 332 from below. The second support member 331 is elongated such that the width direction is longer than the length direction. The second support member 331 is disposed such that its width direction (longitudinal direction) is parallel to the width direction of the pair of formworks 10A.

[0088] The second support member 331 includes a base portion 3311 and two side plate portions 3312 rising from the base portion 3311. The second support member 331 is made of, for example, a metal material, preferably a galvanized steel plate. The second support member 331 is an integrally molded product manufactured by bending a single metal plate material by, for example, press working.

[0089] The base 3311 has an attachment portion 3311a for attaching the second fixing member 35. When the second fixing member 35 is a screw, the attachment portion 3311a is a screw hole having a female thread.

[0090] The two side plate portions 3312 rise from both ends of the base portion 3311 in the longitudinal direction. Each side plate portion 3312 includes two contact portions 3312a and one extending portion 3312b. The two contact portions 3312a are upper end surfaces of both ends of the side plate portion 3312 in the width direction and can come into contact with the lower surface of the second clamping member 332. Each contact portion 3312a is preferably a flat surface. The extending portion 3312b is provided in the center of the side plate portion 3312 in the width direction and extends above the upper ends of the contact portions 3312a.

[0091] The second clamping member 332 is made of a longitudinal plate material whose width direction is longer than its length direction. The second clamping member 332 is arranged so that its width direction (longitudinal direction) is parallel to the width direction of the pair of formworks 10A. The second clamping member 332 is made of, for example, a metal plate material, and is preferably made of a galvanized steel plate material.

[0092] The second holding member 332 has an opening 3321 for inserting the second fixing member 35. The central axis of the opening 3321 coincides with the central axis of the attachment portion 3311a.

[0093] The second clamping member 332 has a recess 3322 at the center in the width direction corresponding to the extending portion 3312b, the recess 3322 being recessed in the length direction compared to both ends of the second clamping member 332. As shown in FIG. 15, the extending portion 3312b is disposed within the recess 3322.

[0094] The second clamping member 332 is disposed between the second support member 331 and the movement prevention portion 13 of the formwork 10C. The upper surface of the second clamping member 332 contacts the movement prevention portion 13 of the formwork 10C. The upper surface of the second clamping member 332 is preferably a flat surface. The lower surface of the second clamping member 332 contacts the contact portion 3312a of the side plate portion 3312. The lower surface of the second clamping member 332 is preferably a flat surface.

[0095] As shown in Fig. 14, the upper clamping body 31 is placed on the upper wall 11 of the pair of formwork 10A and the upper wall 11 of the formwork 10C, the upper surface of the first clamping member 322 is brought into contact with the movement prevention portion 13 of the pair of formwork 10A, and the upper clamping body 31 and the first lower clamping body 32 are fixed by the first fixing member 34. The formwork connector 30A can be attached to the pair of formwork 10A by clamping the upper wall 11 of the pair of formwork 10A between the main body 311 of the upper clamping body 31 and the first clamping member 322. Also, as shown in Fig. 15, the upper surface of the second clamping member 332 is brought into contact with the movement prevention portion 13 of the formwork 10C, and the upper clamping body 31 and the second lower clamping body 33 are fixed by the second fixing member 35. The form fastener 30A can be attached to the form 10C by clamping the upper wall 11 of the form 10C between the main body 311 of the upper clamping body 31 and the second clamping member 332. In this way, the pair of form frames 10A and the form frame 10C arranged non-parallel to each other can be joined by the form fastener 30A.

[0096] If the movement prevention portion 13 is not provided on the lower surface of the upper wall 11 of the pair of formwork 10A, the upper surface of the first clamping member 322 will contact the lower surface of the upper wall 11, not the movement prevention portion 13. If the movement prevention portion 13 is not provided on the lower surface of the upper wall 11 of formwork 10C, the upper surface of the second clamping member 332 will contact the lower surface of the upper wall 11, not the movement prevention portion 13.

[0097] [3-2. Second embodiment] A formwork fastener 30B according to a second embodiment will be described with reference to Figs.

[0098] As shown in Fig. 16, the form connector 30B is used to connect a pair of formworks 10A fixed to each other and a formwork 10D arranged at right angles to the pair of formworks 10A. The pair of formworks 10A are preferably fixed to each other by formwork fixtures 20A and / or formwork fixtures 20B. For ease of explanation, the pair of formworks is labeled with the symbol "10A" and the formwork arranged at right angles is labeled with the symbol "10D", but both formworks 10A and 10D have the same structure as the formwork 10 described above.

[0099] 17, the form fastener 30B includes an upper clamping body 31, a first lower clamping body 32, and a first fixing member 34. Unlike the form fastener 30A, the form fastener 30B does not include a second lower clamping body 33 and a second fixing member 35. Instead, the upper clamping body 31 of the form fastener 30B includes a form fastener portion 313 that engages with the form 10D.

[0100] The main body 311 has a length extending from the form 10A to the form 10C. As shown in FIG. 17, the form fastening portion 313 is provided at an end portion in the longitudinal direction of the main body 311. The form fastening portion 313 includes a first portion 3131 and a second portion 3132. The first portion 3131 extends downward from an end portion of the main body 311. The second portion 3132 extends downward from the first portion 3131 of the main body 311. As shown in FIG. 19, the first portion 3131 contacts a second end portion of the upper wall 11 of the form 10D. In addition, there is a gap between the second portion 3132 and the lower surface of the main body 311. The movement prevention portion 13 of the form 10D is disposed in this gap.

[0101] <4. Manufacturing method of concrete pavement> A method for producing a pavement using formwork 10, formwork fasteners 20A, 20B, and formwork connectors 30A, 30B will be described below with reference to Figures 1 and 20A to 21. A method for producing a pavement using all of formwork fasteners 20A, 20B, and formwork connectors 30A, 30B will be described below, but it is not necessary to use all of formwork fasteners 20A, 20B, and formwork connectors 30A, 30B when producing a pavement. For example, formwork connector 30B can be substituted with formwork connector 30A.

[0102] As shown in Fig. 1, the outer periphery formwork 10 is placed on the ground according to the desired shape and area of ​​the pavement and fixed to the ground. Formwork connectors 30A, 30B are attached to the outer periphery formwork 10. Strings are attached to the string fasteners 312 of the formwork connectors 30A, 30B, and a straight line is formed by the strings. As shown in Fig. 20A, a pair of formwork 10 fixed to each other by formwork fixing devices 20A, 20B is placed along the strings and connected to the formwork connectors 30A, 30B. Then, the pair of formwork 10 is fixed to the ground.

[0103] As shown in FIG. 20B, concrete 50 is poured into the space surrounded by the side walls 12 of the formwork 10.

[0104] As shown in Fig. 20C, after the concrete 50 has hardened, the form fixing devices 20A, 20B and the form coupling devices 30A, 30B are removed from the form 10, and the form 10 is dismantled. The portion where the pair of formworks 10 were placed becomes a groove 60.

[0105] As shown in FIG. 21, when removing the formwork fixing tool 20A from the formwork 10, first, the fixing member 23 is loosened. When the fixing member 23 is loosened, the second member 22 becomes rotatable relative to the fixing member 23. Since the width W1 of the second member 22 is smaller than the width W3 of the gap S between the pair of formworks 10, when the second member 22 is rotated so that the longitudinal direction of the second member 22 is approximately parallel to the longitudinal direction of the formwork 10, the second member 22 and the fixing member 23 become able to pass through the gap S between the pair of formworks 10. By rotating the second member 22 relative to the fixing member 23 in this manner, the formwork fixing tool 20A can be dropped and removed from the formwork 10. After removing the formwork 10, the worker retrieves the formwork fixing tool 20A that has fallen to the ground.

[0106] The method for removing the formwork fixing device 20B from the formwork 10 is similar to the method for removing the formwork fixing device 20A. However, in the case of the formwork fixing device 20B, it is necessary to loosen the two fixing members 23 and align the longitudinal directions of both of the two second members 22 approximately parallel to the length direction of the formwork 10.

[0107] When removing the form fastener 30A from the form 10, first, the first fixing member 34 and the second fixing member 35 are removed. The worker collects the upper clamping body 31 remaining on the form 10. Furthermore, when the first fixing member 34 and the second fixing member 35 are removed, the first lower clamping body 32 and the second lower clamping body 33 fall. After removing the form 10, the worker collects the first lower clamping body 32 and the second lower clamping body 33 that have fallen to the ground. The form fastener 30B can also be removed from the form 10 in the same manner as the form fastener 30A.

[0108] <5. Effects> As shown in FIG. 4, a pair of forms 10 can be fixed to each other by using a form fixing device 20A.

[0109] As shown in FIG. 9, by using a formwork fixing device 20B, a pair of formworks 10A can be fixed to each other, a pair of formworks 10B can be fixed to each other, and further, a pair of formworks 10A and a pair of formworks 10B can be joined together.

[0110] As shown in FIG. 8A and FIG. 11, by clamping the upper wall 11 of the formwork 10 between the first clamping portion 2121 and the second clamping portion 222, the formwork fixing tools 20A, 20B and the formwork 10 can be firmly fixed.

[0111] When concrete is poured, pressure is applied from the concrete to the side walls 12 in a direction that brings the pair of formworks 10 closer together. As shown in Fig. 8A and Fig. 11, by disposing the formwork movement restricting part 2123 in the gap S between the upper walls 11 of the pair of formworks 10, it is possible to prevent the pair of formworks 10 from moving in the direction that brings them closer together due to the pressure of the concrete.

[0112] The form fixing devices 20A, 20B can be removed from the pair of formwork 10. Therefore, after the concrete hardens, the pair of formwork 10 is not removed while still fixed by the form fixing devices 20A, 20B, but the formwork 10 can be removed one by one after removing the form fixing devices 20A, 20B. This simplifies the work of removing the formwork 10.

[0113] The width W1 (see FIG. 7) of the second member 22 is smaller than the width W2 (see FIG. 6B) of the formwork movement restricting portion 2123, i.e., the width W3 (see FIG. 8B) of the gap S between the upper walls 11 of the pair of formworks 10. Furthermore, when the fixing member 23 is loosened, the second member 22 becomes rotatable relative to the fixing member 23. As shown in FIG. 21, after the concrete has hardened, the second member 22 can be rotated to drop the formwork fixing devices 20A, 20B from the gap S between the pair of formworks 10, so that the formwork fixing devices 20A, 20B can be easily removed from the formwork 10.

[0114] Since workers cannot walk on the concrete from when the concrete is poured until it hardens, workers will walk on the formwork 10 when work is required. When a force is applied to the formwork 10 from above, the formwork 10 will tend to move outward in the width direction. As shown in Figures 8A and 11, the movement prevention portion 13 of the formwork 10 is disposed in the first receiving portion 2122, so that the movement of the pair of formworks 10 outward in the width direction can be restricted.

[0115] As shown in FIG. 10, the first member 21' has a through hole 2112 for inserting the positioning tool 40, so that the form fixing tool 20B can be fixed to the ground by the positioning tool 40.

[0116] As shown in FIG. 12, by using a form connector 30A, a pair of forms 10A can be connected to a form 10C that is disposed non-parallel to the pair of forms 10A.

[0117] As shown in FIG. 15, by using form fitting devices 30B, a pair of formwork 10A can be fitted to a formwork 10D disposed perpendicular to the pair of formwork 10A.

[0118] The form fasteners 30A, 30B can be removed from the pair of formwork 10A. Therefore, after the concrete hardens, the pair of formwork 10A can be removed one by one after removing the form fasteners 30A, 30B, rather than removing the pair of formwork 10A while it is still fixed by the form fasteners 30A, 30B. This simplifies the work of removing the formwork 10.

[0119] As shown in Figs. 13 and 17, the form fasteners 30A, 30B are provided with a string fastener 312, so that the form 10 can be arranged in a straight line along the string fastened to the string fastener 312.

[0120] As shown in Figs. 13 and 17, the upper clamping body 31 has through holes 3111 for inserting the positioning tools 40, so that the form fasteners 30A and 30B can be fixed to the ground by the positioning tools 40.

[0121] As shown in FIGS. 13 and 17, the upper clamping body 31 has a longitudinal through hole 3112, so that the attachment position of the first lower clamping body 32 can be changed.

[0122] 19, the first portion 3131 of the form fastening portion 313 is located outside the second end portion of the upper wall 11 of the formwork 10D, thereby restricting the outward movement of the formwork 10D. In other words, even if pressure from the concrete is applied to the formwork 10D, the upper wall 11 of the formwork 10D comes into contact with the first portion 3131, so that the formwork 10D cannot move outward.

[0123] Conventionally, wooden formwork has been used as a formwork for forming pavement for parking lots with grooves. However, due to the promotion of SDGs, the use of wooden formwork is being reduced. By making the formwork 10 from a metal material, it is possible to provide an inexpensive and reusable formwork.

[0124] <6. Variations> The present invention is not limited to the above-described embodiment, and various modifications are possible without departing from the scope of the present invention. Modifications of the present invention will be described below. The modifications described below can be applied to the above-described embodiment alone or in appropriate combination without departing from the scope of the present invention.

[0125] (6-1) The shape of the movement prevention portion 13 is not particularly limited as long as the movement prevention portion 13 is shaped to catch on the edge of the first receiving portion 2122 of the formwork fixing device 20A, 20B when the formwork 10 attempts to move outward in the width direction. The movement prevention portion 13 may be a plate-shaped portion extending downward from the second end portion of the upper wall 11 as shown in FIG. 22. The movement prevention portion (plate-shaped portion) 13 shown in FIG. 22 extends downward in parallel with the side wall 12. Such a plate-shaped portion can be formed by bending the second end portion of the upper wall 11 downward. The plate-shaped portion may have a hemmed bending portion as shown in FIG. 22.

[0126] (6-2) The formwork movement restricting portion 2123 may be provided on the second member 22, and a receiving portion for receiving the formwork movement restricting portion 2123 may be provided on the first member 21, 21'. In the case where the formwork movement restricting portion 2123 is provided on the second member 22, when removing the formwork fixing devices 20A, 20B from the formwork 10, even if the second member 22 is to be rotated relative to the fixing member 23, the formwork movement restricting portion 2123 interferes with the upper wall 11 of the formwork 10, and the second member 22 cannot be rotated. Therefore, when removing the formwork fixing devices 20A, 20B from the formwork 10, the fixing member 23 is first removed, and the second member 22 remaining on the formwork 10 is collected by a worker. Since the first members 21, 21' fall to the ground, the worker collects the first members 21, 21' that have fallen to the ground after removing the formwork 10.

[0127] (6-3) The second member 22 of the formwork fixing devices 20A and 20B may be provided with a water line retainer 312.

[0128] (6-4) The two second members 22 of the formwork fixture 20B may have different structures and dimensions. Also, the two fixing members 23 of the formwork fixture 20B may have different structures and dimensions.

[0129] (6-5) In the form fixture 20B, the first member 21' may be configured to be positionable on the upper walls 11 of the pair of formworks 10A and on the upper walls 11 of the pair of formworks 10B, and the two second members 22 may be positioned below the upper walls 11 of the pair of formworks 10A and below the upper walls 11 of the pair of formworks 10B, respectively. In this embodiment, when the form fixture 20B is removed from the formworks 10A and 10B, the first member 21' remains on the upper walls 11, and therefore a worker needs to retrieve the first member 21'.

[0130] (6-6) The structure of the first lower clamping body 32 of the formwork fasteners 30A and 30B is not limited as long as it can clamp the upper walls 11 of the pair of formworks 10A together with the upper clamping body 31. For example, the first lower clamping body 32 may not include the first support member 321 and may be composed of only the first clamping member 322, and the upper clamping body 31 and the first clamping member 322 may be fixed by the first fixing member 34. Alternatively, as shown in FIG. 23, the first lower clamping body 32 may not include the first clamping member 322 and may be composed of only the first support member 321, and the first support member 321 may be turned upside down so that the base 3211 comes into contact with the movement prevention portion 13 of the pair of formworks 10A. Similarly, the second lower clamping body 33 may not include the second support member 331 and may be composed of only the second clamping member 332. Alternatively, the second lower clamping body 33 may not include the second clamping member 332, and the second support member 331 may be turned upside down so that the base portion 3311 comes into contact with the movement prevention portion 13 of the formwork 10C. [Explanation of symbols]

[0131] 10 Formwork 10A Formwork 10B Formwork 10C Formwork 10D formwork 11 Upper wall 111 Through hole 12 Side wall 13 Movement prevention part S Gap 20A Formwork Fixture 20B Formwork Fixture 21 First member 21' First member 2112 Through hole 2121 First clamping part 2122 1st Reception Department (Reception Department) 2123 Formwork movement control part 22 Second member 222 Second clamping part 2241 Through hole 23 Fixing member 30A Formwork fittings 30B Formwork fittings 31 Upper clamping body 3111 Through hole 312 Water thread fastener 313 Formwork fastening 32 First lower clamping body (lower clamping body) 33 Second lower clamping body 34 First fixing member 35 Second fixing member 40 Positioning tool 50 Concrete 60 grooves W1 Width of second part W2 Width of formwork control part W3 Gap width

Claims

1. 1. A form fixture for fixing together a pair of forms used in forming a grooved concrete pavement, each form having a top wall and a side wall extending downwardly from the top wall, a first member at least partially disposed above or below the upper wall; a second member at least a portion of which is disposed above or below the upper wall and sandwiches the upper wall together with the first member; a fixing member that fixes the first member and the second member; A formwork fixture comprising:

2. One of the first member and the second member is a form movement restricting portion disposed between the upper walls of the pair of formworks and configured to restrict the pair of formworks from moving in a direction approaching each other.

2. The formwork fixture of claim 1.

3. A form fixture for fixing together a first pair of forms used in forming a concrete pavement having a groove, fixing together a second pair of forms used in forming a concrete pavement having a groove, and connecting the first pair of forms with the second pair of forms, each form having a top wall and a side wall extending downwardly from the top wall, a first member having a length extending from the first pair of forms to the second pair of forms, at least a portion of which is disposed above or below the upper wall of the first pair of forms and the upper wall of the second pair of forms; At least two second members sandwiching the upper wall together with the first member, at least a portion of the at least two second members being disposed above or below the other of the upper wall of the first pair of forms and the upper wall of the second pair of forms; At least two fixing members that fix the first member and the second member; A formwork fixture comprising:

4. One of the first member and the second member includes a form movement restricting portion disposed between the upper walls of the first pair of formworks and between the upper walls of the second pair of formworks, the form movement restricting portion restricting the first pair of formworks from moving in a direction approaching each other and the second pair of formworks from moving in a direction approaching each other.

4. A formwork fixture as claimed in claim 3.

5. The first member includes the formwork movement restricting portion and a first clamping portion disposed below the upper wall, the second member includes a second clamping portion disposed on the upper wall and configured to clamp the upper wall together with the first clamping portion; the second member is rotatable relative to the fixed member when not fixed by the fixed member; The width of the second member is smaller than the width of the formwork movement restricting portion.

5. A formwork fastener according to claim 2 or 4.

6. The pair of formwork pieces have a movement prevention portion for preventing the pair of formwork pieces from moving in directions away from each other, The first member has a receiving portion that receives the movement prevention portion. A formwork fastener according to claim 1 or 3.

7. The first member has a through hole for inserting a positioning tool for fixing the formwork fastener to the ground.

4. A formwork fixture as claimed in claim 3.

8. A form connector for connecting a pair of forms fixed to each other for use in forming a concrete pavement having a groove and a form arranged non-parallel to the pair of forms, each form having a top wall and a side wall extending downwardly from the top wall, A first lower clamping body at least partially disposed under the upper walls of the pair of formworks; An upper clamping body is disposed on the upper walls of the pair of formworks and on the upper walls of the non-parallelly disposed formworks, and clamps the upper walls of the pair of formworks together with the first lower clamping body; A second lower clamping body at least partially disposed under the upper wall of the non-parallelly arranged formwork and clamping the upper wall of the non-parallelly arranged formwork together with the upper clamping body; a first fixing member that fixes the first lower clamping body and the upper clamping body; a second fixing member that fixes the upper clamping body and the second lower clamping body; A formwork fastener comprising:

9. A form connector for connecting a pair of forms fixed to each other for use in forming a concrete pavement having a groove to a form disposed perpendicular to the pair of forms, each form having a top wall and a side wall extending downwardly from the top wall, A lower clamping body at least partially disposed under the upper walls of the pair of formworks; an upper clamping body that is disposed on the upper walls of the pair of formworks and on the upper walls of the formworks disposed perpendicularly, has a formwork fastener that engages with the formworks disposed perpendicularly, and clamps the upper walls of the pair of formworks together with the lower clamping body; A fixing member that fixes the lower clamping body and the upper clamping body; A formwork fastener comprising:

10. The upper clamping body further includes a water line fastening portion for fastening the water line.

9. A formwork fastener according to claim 8.

11. The upper clamping body has a through hole for inserting a positioning tool for fixing the formwork fixture to the ground.

9. A formwork fastener according to claim 8.

12. a step of arranging a pair of formworks each having an upper wall and a side wall extending downward from the upper wall such that a gap is formed between the upper walls, and arranging the formwork movement restricting portion of the formwork fixing device according to claim 2 or 4 in the gap, thereby fixing the pair of formworks by the formwork fixing device; A step of pouring concrete; After the concrete has hardened, removing the form fixture from the pair of forms and stripping the pair of forms; A method for manufacturing a concrete pavement having grooves comprising:

13. a step of arranging a pair of formworks each having an upper wall and a side wall extending downward from the upper wall such that a gap is formed between the upper walls, and arranging the formwork movement restricting portion of the formwork fixing device according to claim 5 in the gap, thereby fixing the pair of formworks by the formwork fixing device; A step of pouring concrete; After the concrete has hardened, loosening the fixing member, rotating the second member and the fixing member so that the second member and the fixing member can pass through the gap, and dropping the formwork fixing device from the pair of formworks to remove the pair of formworks; and A method for manufacturing a concrete pavement having grooves comprising:

14. A form for forming a concrete pavement having a groove, comprising: The upper wall and a side wall extending downward from the upper wall; A formwork comprising:

15. Further provided with a movement prevention part that restricts the outward movement of the formwork, A formwork according to claim 14.

16. The movement prevention portion is a hemming bending portion. A formwork according to claim 15.

17. The upper wall has a through hole for inserting a positioning tool for fixing the formwork to the ground. A formwork according to claim 14.

Images