JPH08218382A - Net board for form - Google Patents

Abstract

PURPOSE: To enhance safety by superposing steel wires in a transverse direction on steel wires disposed parallelly in a longitudinal direction, cross each other, and fixedly attaching a bent portion on one end of the transverse wire and the other end thereof to the uppermost wire and the lowermost wire, in longitudinal direction, respectively. CONSTITUTION: A plurality of steel wires 10 are disposed nearly parallelly in a longitudinal direction. A bent portion 21 is formed on one end of a transverse steel wire 20. And the transverse wires 20 are superposed on the wires 10 disposed in a longitudinal direction, nearly parallelly, so that both the wires are disposed diagonally at about 90 deg.. Further, a bent portion 21 on one end of the wire 10 is superposed on the outermost or uppermost wire 10T, and the other ends of the wire 20 are superposed on the outermost or lowermost wire 10B and intersections between the wires 10 and the wires 20 are fixed to each other to form a net board 1 for form. Conseguently, by providing the bent portion 21 on one end of the wire 20, the wire 20 does not protrude from the upper edge of the board 1, so that working clothes of worker is prevented from being caught and hence injury to worker can be avoided and safety can be enhanced.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is applied to the construction of slope protection works such as slopes facing highways and various facilities constructed by the open-cut construction method or steep slopes that may collapse. The present invention relates to a formwork for forming a method frame used in, a formwork mesh plate, and a method for manufacturing the form mesh plate.

[0002]

2. Description of the Related Art A mesh plate of a conventional law frame is disclosed in, for example, Jitsuko Sho 54
No. 21844, it comprises a wire mesh plate in which crimp lines are crossed lengthwise and crosswise and is knitted in a lattice shape, and as shown in FIGS. 2 and 4 of the publication, the upper edge of the wire mesh plate is Since the steel wire in the width direction is still cut and protrudes from the steel wire in the outermost length direction, an operator may touch the end of the protruding steel wire and hook his work clothes while forming the legal frame. However, there were various problems such as being injured, and the hose for placing the contrite was caught on the end of the protruding steel wire, and the method frame arranged for this purpose was moved, and the wire rod was bent.

[0003]

SUMMARY OF THE INVENTION In order to solve the above problems, the object of the present invention is to prevent the hose or clothing from being caught on the upper edge of the mesh plate so that the operator can work the upper edge of the mesh plate while working. It is an object of the present invention to provide a mesh plate for a form and a method for manufacturing the mesh plate for a mold in consideration of safety without being injured even if touched. Another object of the present invention is to provide a net plate which has a significantly large amount of net plates manufactured per unit time and is low in manufacturing cost. Still another object of the present invention is to provide a method for manufacturing a mesh plate which has a significantly large amount of mesh plate manufactured per unit time and is low in manufacturing cost.

[0004]

According to the present invention, as shown in FIG. 1, steel wires 10 arranged substantially parallel to the length direction are overlapped with each other so as to intersect each other substantially perpendicularly, and the formed intersections are fixed. A mesh plate 1 for formwork, which comprises a steel wire 20 in the width direction,
The widthwise steel wire has a bent portion 21 formed at one end side, and is fixed to the outermost steel wire 10T in the lengthwise direction which is an upper edge at or near the bent portion, and the other end. It is formed by being fixedly attached to the outermost steel wire 10B in the length direction which is the lower edge on the side. Further, as shown in FIG. 2, the present invention substantially intersects the steel wire 10 arranged in parallel with the length direction and the wavy steel wire arranged in the length direction along the outermost steel wire 10T substantially perpendicularly. And a widthwise steel wire 20 which is superposed on each other and fixed at an intersection point, and the widthwise steel wire has the wavy shape arranged at one end side and the longitudinal direction. The valley portion of the steel wire is fixedly formed. As shown in FIG. 3, the present invention arranges a U-shaped connecting stirrup bar 30 between a pair of frame net plates 1 and 1 facing each other in parallel, and the pair of vertical sides 31, 31. In a form F configured to be rotatably fixed to a pair of mesh plates 1 and 1 by steel wires so as to be foldable, the mesh plates are substantially perpendicular to a steel wire 10 arranged substantially parallel to the length direction. And a widthwise steel wire 20 that is overlapped with and intersected with each other. The widthwise steel wire is formed with a bent portion 21 at one end side, and is an outermost portion that is an upper edge at or near the bent portion. It is fixed to the lengthwise steel wire 10T and is fixedly formed to the outermost lengthwise steel wire 10B which is the lower edge at the other end side in the width direction. Further, according to the present invention, a U-shaped connecting stirrup bar 30 is arranged between a pair of net plates 1 and 1 facing each other in parallel, and the pair of vertical sides 3 thereof.
In a form F having rotatably fixed 1 and 31 to a pair of mesh plates 1 and 1 by steel wires, respectively, the mesh plates are steel wires 10 arranged parallel to the longitudinal direction. A mesh plate 1 for a form made up of a wavy steel wire arranged in the longitudinal direction along the outermost steel wire 10T, and a widthwise steel wire 20 which is superposed so as to intersect substantially perpendicularly and fixed at an intersection. The steel wire in the width direction is formed by fixing one end side and a trough portion of the wavy steel wire arranged in the length direction. FIG. 4 shows a steel wire 1 arranged substantially parallel to the length direction.
0 and a widthwise steel wire 20 which is overlapped with the steel wire so as to intersect substantially perpendicularly to the steel wire. The widthwise steel wire is formed with a bent portion 21 at one end side, and the bent portion or the bent portion is formed. Is fixed to the outermost steel wire 10T in the lengthwise direction which is the upper edge in the vicinity of the portion, and is fixedly formed to the outermost steel wire 10B in the lengthwise direction which is the lower edge at the other end. A plurality of stirrup streaks 30 are arranged at substantially equal intervals between the pair of mesh plates 1 and 1, and the pair of vertical sides 31 and 31 are rotatable with the steel wire to the pair of mesh plates 1 and 1, respectively. It is explanatory drawing explaining the state at the time of assembling the form F which fixed and was comprised so that it could be folded. Further, according to the present invention, the steel wire 1 is substantially parallel to the length direction.
0 is arranged, and the steel wires 20 in the width direction in which the bent portions 21 are formed at one end side in the width direction are superposed on these steel wires so as to intersect substantially perpendicularly, and the bent portions or the vicinity of the bent portions are A length direction formed by stacking the outermost steel wire 10T in the length direction, which is an upper edge, and the other end side in the width direction on the outermost steel wire 10B in the length direction, which is a lower edge. Is a method for manufacturing the mesh plate 1 for a form, characterized in that the intersection of the steel wire and the steel wire in the width direction is fixed. Further, the present invention is arranged such that the steel wire 20 is arranged in the width direction, that is, substantially, with respect to the steel wire 10 arranged in parallel to the length direction and the wavy steel wire arranged in the length direction along the outermost steel wire 10T. Vertically intersecting and overlapping, and fixing at the intersection, and fixing one end side of the steel wire in the width direction and the valley portion of the wavy steel wire arranged in the length direction. It is a method of manufacturing the frame net plate 1. In the present invention, the steel wire 10 arranged in the length direction and the steel wire 2 arranged in the width direction
Welding, particularly spot welding, is suitable for crossing 0 and fixing the intersection. Next, in order to form a legal form using the formwork F of the present invention, a pair of formwork net plates 1 and 1 are erected in parallel on the slope to place the formwork F, and a plurality of lower parts are formed. The main rebars are inserted from the upper opening and are arranged at appropriate intervals on the bottom of the upward U-shaped lower horizontal bar (lower stirrup), and a plurality of upper main bars are further arranged on the upper horizontal bar. After that, the lower lateral bar (upper stirrup) of U-shape is installed so that both sides of the lower lateral bar are outside the upper main reinforcing bars on both sides and overlap with both sides of the lower lateral bar. Finally, concrete is poured into the installed formwork to form a method frame.

[0005]

[Operation and effect] The conventional mesh plate and the mesh plate of the method frame are made of a wire mesh plate in which crimp lines are crossed vertically and horizontally and knitted in a lattice shape. Since it is cut and protrudes from the outermost steel wire in the longitudinal direction, for example, during the work of forming the legal frame, the worker touches the end of the protruding steel wire to hook the work clothes or get injured, and There were various problems such that the hose for placing contreat was caught on the end of the protruding steel wire, the legal frame arranged for this was moved, and the wire rod was bent, which made the work difficult. According to the mesh plate for a formwork of the present invention, since the steel wire in the width direction is not protruded from the upper edge of the mesh plate, the worker does not put concrete on the upper edge of the mesh plate during work. Installation hoses and clothing will not get caught, and the Such as not injured also, excellent work efficiency, also is excellent in safety. Since the conventional mesh plate is knitted vertically and horizontally and is knitted in a lattice shape in the vertical direction, the amount of mesh plate produced per unit time is small and the manufacturing cost is high. According to the mesh plate and the manufacturing method therefor, the frame mesh plate of the present invention has the steel wires (10) arranged substantially parallel to the lengthwise direction, and the bent portions (21) are provided on one end side of these steel wires. ) Formed widthwise steel wire (20)
Are overlapped with each other substantially perpendicularly, and the outermost steel wire (10) in the lengthwise direction has an upper edge at or near the bent portion.
T), and the other end side is overlapped with the outermost steel wire (10B) in the length direction, which is the lower edge, and the intersection of the formed steel wire in the length direction and the steel wire in the width direction is fixed. Therefore, the production amount of the mesh plate per unit time is remarkably large and the production cost is low. As described above, the present invention has excellent operational effects.

[Brief description of drawings]

FIG. 1 is a plan view of a mesh plate for a mold which is an embodiment of the present invention.

FIG. 2 is a plan view of a mesh plate for formwork, which is another embodiment of the present invention.

FIG. 3 is a perspective view of a formwork in which a form mesh plate according to an embodiment of the present invention is assembled.

FIG. 4 is an explanatory view when assembling a mold using the mesh plate for the mold according to the embodiment of the present invention.

[Explanation of symbols]

1 ... Formwork mesh plate 10 ... Steel wire arranged in length direction 20 ... Steel wire arranged in width direction 21. Bent portion
30 ・ ・ Stirrup muscle 31 ・ ・ Vertical F ・ ・ Form

Claims (4)

[Claims] 1. A steel wire (1) arranged parallel to a length direction.
0) is a mesh plate (1) for a formwork, which is formed by intersecting and overlapping the widthwise steel wires (20) fixed at the intersections, the widthwise steel wires being bent at one end side. (21) is formed and is fixed to the outermost lengthwise steel wire (10T) which is an upper edge in the bent portion or in the vicinity of the bent portion, and the outermost length which is a lower edge on the other end side. A mesh plate for a form, which is formed by being fixedly attached to a steel wire (10B) in the depth direction. 2. A steel wire (1) arranged parallel to the length direction.
0) and a wavy steel wire arranged along the outermost steel wire (10T) so as to intersect and overlap with each other, and a widthwise steel wire (20) fixed at the intersection point to form a mesh plate ( 1), the steel wire in the width direction includes one end side and the wavy steel wire (1
A mesh plate for a form, which is formed by fixing the valley portion (11B) of 1). 3. A U-shaped connecting stirrup is arranged between a pair of net plates (1, 1) facing each other in parallel, and the pair of vertical sides can be rotated by a steel wire into a pair of net plates, respectively. A mesh plate for a frame, which is fixed to and is foldable, and the mesh plate is crossed and overlapped with a steel wire (10) arranged substantially parallel to the length direction, and fixed at an intersection. The steel wire (20) in the width direction, the steel wire in the width direction is formed with a bent portion (21) at one end side, and has an outermost length that is an upper edge at or near the bent portion. Direction steel wire (10T)
And a net plate for a form, which is fixed to a steel wire (10B) in the outermost length direction which is a lower edge on the other end side. 4. Steel wires (10) are arranged substantially parallel to the length direction, and bent portions (21) are arranged on these steel wires at one end side in the width direction.
The widthwise steel wire (20) formed with the bent portion or the outermost steel wire (10) in the lengthwise direction (10) having an upper edge near the bent portion is formed.
T), and the other end is overlapped with the outermost steel wire (10B) in the lengthwise direction which is the lower edge, and the intersections formed by intersecting each other are fixed. Method for manufacturing mesh plate.