KR100822129B1 - Form panel - Google Patents

Abstract

This invention makes it a subject to aim at the improvement of the efficiency of a concrete formwork.

Mountain-shaped bends 10 curved to be convex on the concrete pour surface side and valley-shaped bends 11 bent to be concave on the concrete pour surface side are formed in parallel with each other, and these mountain-shaped bend lines 10 and In the valley-shaped bend 11, a mold panel 1 having an expansion and contraction portion 3 in which a plurality of slits 7 in a row direction are formed at a proper interval on a straight line is used.

Description

Form panel {FORM PANEL}

1 is a (a) front view, and (b) a plan view of the mold panel 1;

2 is a (a) front view and (b) plan view of the second separator insertion hole;

3 is a (a) front view and (b) plan view of the third separator insertion hole;

4 is a plan view showing (a) the normal state, (b) the expanded state, and (c) the contracted state of the expanded contracting portion 3;

5 is a plan view 1 of the modified form panel 1,

6 is a plan view 2 of the modified form panel 1,

7 is a plan view 3 of the deformed mold panel 1,

8 is a (a) front view, (b) top view, and (c) side view of the panel holding member;

9 is a side view showing a state of holding the mold panel with the panel holding member;

10 is a perspective view of the mold,

11 is a sectional view of main parts of the mold;

12 is a view showing the shape of another third separator insertion hole;

FIG. 13 is a view showing the shape of another third separator insertion hole; FIG.

14 is a cross-sectional view showing an assembled state of a conventional mold panel;

15 is a view showing the shape of a conventional separator insertion hole;

16 is a view showing the shape of a conventional separator insertion hole;

17 is a cross-sectional view showing a state where a separator is inserted through a conventional separator insertion hole.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a metal mold panel used for formwork of a concrete mold in civil construction, and a panel holding member for holding the mold panel on a base surface.

Conventionally, plywood mold panels have been mainly used for formwork of concrete molds, but they are not dismantled even after hardening of concrete concrete for reasons of forest protection, troublesome construction dismantling, and disposal problems after use. Metal form panels which can be repurchased as they are are being developed. In this type of metal form panel, a thin steel sheet is molded by sheet metal processing, and rib portions for reinforcement are formed in the vertical direction in place. When assembling the mold, the mold panel is erected along the panel holding member installed on the poured concrete, and then the ribs of the mold panel are connected with the separator so as to withstand the pressure of the concrete to be poured. The metal mold panel is molded to have a constant width (for example, an effective width of 600 mm), and a plurality of mold panels are connected to form a mold having a required width. When a section having a narrower width than that of the mold panel was generated, the dimension was adjusted by cutting the mold panel or using another metal panel. At that time, since the panel was cut and processing such as the formation of holes for inserting the separator through the field, work efficiency was poor, and problems in precision and strength may occur.

The separator is a rod having male threads formed at both ends thereof, and when connected to the mold panel, as shown in FIG. 14, the separators formed at the rib portions of the mold panel 1 are provided with male threads 31a at both ends of the separator 31. It protrudes outward from the passage hole 4, and the fitting 32 called a form die is screwed on this. Then, the reinforcing steel pipe 33 is installed on the foam die 32 in the transverse direction, the fastening fitting 34 is fitted to the steel pipe, and then the wedge 35 is inserted into the groove hole 32a of the foam die. To fix the steel pipe 33 to the outer surface of the mold panel 1.

By the way, since the separator 31 and the foam die 32 were originally made in consideration of the use as a plywood mold panel, when used for a thin metal mold panel, the thickness adjusting spacer 36 and the foam die screw type It was necessary to use the washer 37 which prevents the separator from turning together with the foam die at the time of attachment. Thus, since there are many scores of the members to be used, it took time to complete the mold construction work, and it was cumbersome to manage materials.

Separator through-holes are formed in the mold panel at predetermined intervals, so that the mold panel may be bent at the corner of the mold or used when the mold panel is cut to the appropriate width as described above. However, there was a danger of the concrete being poured from this separator insertion hole.

Moreover, the separator 31b made in consideration of use as a plywood mold panel is provided with the protrusion part 31b which penetrates into a plywood mold mold, and prevents a separator from turning.

Therefore, the separator insertion hole of the conventional metal mold panel is circular (see Fig. 15) having a diameter larger than the external dimension of the projection 31b of the separator 31, or the diagonal dimension has an external dimension of the projection 31b. It was a longer square (see Fig. 16).

However, if the separator insertion hole is circular or square as in the conventional metal mold panel, there is a large amount of space between the inner circumferential surface of the separator insertion hole and the outer circumferential surface of the separator. As shown in the figure, the separator 31 may shift | deviate and the inner end surface of the foam die 32 may fall out from the peripheral part of the rib part 2 of the mold panel 1. Then, there is a risk that the tightening fitting 34 is loosened or pulled out, and the mold itself is deformed or damaged, resulting in an accident that the poured concrete flows out.

The panel holding member has a U-shape in which a cross-sectional shape is formed of a bottom surface portion and a pair of rising portions standing up from both ends of the bottom surface portion, and the lower end portion of the mold panel is sandwiched and held inside. The panel retaining member is fixed to the concrete poured by the concrete nail, but as the above, it is difficult to attach the concrete nail to the bottom surface because of the cross-shaped cross section. When installed, the shape becomes complicated and other problems arise, such as an increase in the carrying or storage volume.

Moreover, there existed a problem which cannot be overcome with the conventional panel holding member, such as coping with the unevenness | corrugation in the reference surface of poured concrete, and sharing with the upper cap attached to the upper end of a form panel.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and it is possible to easily and efficiently perform the construction of a concrete mold on a site, and is a mold metal mold panel that is firmly completed, and a panel holding member suitable for use in combination with the same. It is a subject to offer.

In order to solve the said subject, this invention was comprised as follows.

First, in the mold panel of the first invention, a plurality of mountain-shaped flexures that are curved to be convex on the concrete pour surface side and a valley-like flexion cords that are curved to be concave on the concrete pour surface side are formed in parallel with each other, and these mountain-shaped flexing lines And an expansion-contraction section in which a plurality of slits in the row direction are formed on a straight line in a valley-like bent line.

By changing the bend angles of the mountain-shaped bends and valley-shaped bends, the expansion and contraction portion can be expanded and contracted in a direction intersecting with the line directions of the mountain-shaped bends and valley-shaped bends. Since a plurality of slits in the row direction are formed on a straight line at appropriate intervals in the mountain-shaped bent lines and the valley-shaped bent lines, it is easy to change the bend angles of the mountain-shaped bent lines and the valley-shaped bent lines. Therefore, the effective width of the mold panel can be easily changed in the field, and it is not necessary to cut the mold panel for adjusting the size of the mold or to prepare another metal panel, thereby improving the work efficiency of the mold construction and the precision of the mold. I can improve the strength. In addition, since there is no waste material in the field, there is no post-treatment problem, contributing to environmental conservation.

If a plurality of separator insertion holes are formed in the mold panel at predetermined intervals in advance, it is convenient to connect the separator to the mold panel, and in this case, it is located at the center of the direction intersecting with the directions of the mountain-shaped bends and valley-shaped bends. When the separator insertion hole is formed so that the end portions in the direction of the mountain-shaped bent line and the valley-shaped bent line are pointed, it is easy to bend the mold panel along the rows of the separator insertion line.

In addition, the separator insertion hole located at the center portion in the direction intersecting with the direction of the mountain-shaped bend line and the valley-shaped bend line cuts most of the outline, and through the non-cutting portion of the remaining outline, If the outer portion is connected, the leakage of the pour concrete is normally prevented, and if necessary, the inner portion of the contour can be removed by cutting or bending the non-cutting portion to enable the separator to pass through. Can be.

The separator insertion hole located at one end in a direction intersecting at least the direction of the mountain-shaped bend and the valley-shaped bend has a shape in which a part of the outer edge protrudes toward the center of the hole. When the projecting portion is refracted by the separator in the direction intersecting the panel surface in the passing state, the refracted projecting portion is engaged with the shaft portion of the separator and configured to restrict rotation of the axis of the separator. The separator anti-rotation washer that has been used in the process becomes unnecessary.

In the mold panel according to the second aspect of the present invention, the separator insertion hole is formed in the concave rib portion when viewed from the outer surface side of the mold assembly state, and the separator insertion passage passes through the separator from the inner surface side to the outer surface side. In the form panel which inserts through a hole, a foam die is attached to the part which protrudes to the outer surface side of the separator, and is assembled in the state in which the said foam die contacted to the peripheral part of the said rib part from an outer surface side, WHEREIN: It is characterized by the fact that the diameters of two directions perpendicular to each other are different.

In detail, the separator insertion hole is formed such that one of the diameters of two directions perpendicular to each other is larger than the outer dimension of the protrusion of the separator, and the other diameter is smaller than the outer dimension of the protrusion and larger than the diameter of the separator. good. As a result, the protrusion of the separator can pass through the insertion hole, but the separator insertion hole has a small clearance between the inserted separator and the separator can be prevented from shifting when the concrete is placed.

Next, the panel holding member of the present invention is elongated in one direction and has a U-shape in which the cross-sectional shape is formed of a bottom surface portion and a pair of standing portions standing up from both ends of the bottom surface portion, and at least one standing surface. The part is formed with an opening through which the head of the nailing mechanism can pass.

By forming the opening, the concrete nail can be easily nailed to the bottom surface portion of the panel holding member, so that it is not necessary to provide a portion for nailing the concrete nail separately from the main body portion having a cross-sectional shape as in the prior art.

Moreover, when the holding height adjustment piece which can be bend | folded inside at least one standing part and which can support the lower end of a mold panel from the lower side in the bending state is provided, if there is an unevenness | corrugation in the reference surface of the poured concrete, The holding height of the mold panel can be adjusted so that the panel is horizontal.

In addition, if the notch of the said direction is formed in the edge part of the direction which cross | intersects the said end surface of the bottom surface part, the edge part of a panel holding member can be bent so that the space | interval of a pair of standing part may become narrow, so that the edge parts of a panel holding member may be sandwiched. It is possible to join a plurality of panel holding members together.

(Example)

EMBODIMENT OF THE INVENTION Hereinafter, preferred embodiment of this invention is described based on drawing.

1 to 7 show a mold panel, and the mold panel 1 is formed by sheet metal processing of a thin steel sheet (about 0.35 mm in thickness) and plated with zinc or the like. The size of the form panel 1 is a rectangle of width 600mm (effective width) x height 1800mm, for example, and it connects several sheets to the horizontal direction as needed, and makes it the formwork of a required width | variety.

In the mold panel 1, the rib portion 2 and the expansion and contraction portion 3 facing in the longitudinal direction are alternately arranged in the horizontal direction, and the rib portion 2 has a separator insertion hole 4 at a predetermined interval in the vertical direction. Is formed. 4 A of separator insertion through holes (made into the 1st separator insertion hole) formed in the rib part 2A located in the one end of a horizontal direction are circular holes. On the other hand, the separator insertion through hole (made into the 2nd separator insertion hole) 4B formed in the rib part 2B located in the other end of the horizontal direction has two rhombuses, as shown in FIG. The two parts are arranged in a state where the parts overlap each other in the vertical direction, and the upper and lower center portions of the outer edges protrude toward the center of the hole. Since the steel sheet constituting the mold panel 1 is thin, the protruding portion 5 formed on the outer circumferential portion of the second separator insertion hole bends relatively simply when an external force in a direction intersecting the surface of the panel is applied.

Moreover, as shown in FIG. 3, the separator insertion hole (made into the 3rd separator insertion hole) 4C formed in the rib part 2C located in the center part of a horizontal direction has a vertical diagonal line. The diagonal on the shorter side in the direction has a rhombus toward the horizontal direction. The third separator insertion through hole 4C has a structure in which most of the contour is cut off, and the inner part of the contour and the outer part of the contour are connected through some remaining non-cut portions 6, and the hole is blocked in the initial state. The square hole is formed by cutting or bending the non-cutting portion 6 as necessary to remove the inner portion of the contour.

As shown in the dashed-dotted line in FIG. 3, the size of the third separator insertion hole 4C is larger than the external dimension of the protrusion 31b of the separator 31 in the horizontal direction. The dimension L2 is smaller than the external dimension of the protrusion 31b and larger than the diameter of the separator 31. Moreover, if the said conditions are satisfied, the 3rd separator insertion hole 4 can also be made into shapes other than a rhombus. For example, it is good also as a rectangle as shown in FIG. 12, an ellipse as shown in FIG. 13, or other shape.

The slits 7 in the vertical direction are formed in the gap portion between the third separator insertion hole 4C and the third separator insertion hole 4C. Therefore, while the 3rd separator insertion hole 4C has the shape of the vertical edge part being pointed, the rib part 2C can be easily bent along the longitudinal bending line 12. As shown in FIG.

Reference numeral 8 is a non-screw hole, and is formed at the same pitch as the first separator insertion hole in the gap portion between the first separator insertion hole 4A and the first separator insertion hole 4A. Moreover, the outer edges 9 and 9 of a horizontal direction are folded inward, and the reinforcement and handling safety are aimed at.

The expansion and contraction part 3 includes a mountain-shaped bend line 10 that is bent to be convex on the concrete pour surface side, and a pair of bend-shaped bend lines 11 and 11 that are bent to be concave on the concrete pour surface side located at both sides thereof. ) Are formed parallel to each other. In these mountain-shaped bent lines 10 and valley-shaped bent lines 11 and 11, a plurality of slits 7 in a line direction are formed at a proper interval on a straight line. Therefore, the bending angles of the mountain-shaped bend 10 and the valley-shaped bend 11 and 11 can be changed relatively easily only by a human hand. In the normal state, the expansion and contraction portion 3 is as shown in Fig. 4 (a). However, when the angle of each bending line is increased, the width is expanded as shown in (b), and when the angle of each bending line is reduced, the drawing is shown. The width is reduced as in (c). Therefore, the effective width of the mold panel can be easily changed in the field, and there is no need to cut the mold panel or prepare another metal panel to adjust the size of the mold, thereby improving the work efficiency of the mold construction and Strength can be improved. In addition, since there is no material discarded at the site, the post-treatment problem is eliminated, contributing to environmental conservation.

Further, by adjusting the angles of the mountain-shaped bent lines 10 and the valley-shaped bent lines 11 and 11 of each expansion and contraction part 3, the ribs 2C are bent along the longitudinal bending line, 5 to 7, the mold panel 1 can be deformed into a desired shape.

8 and 9 show the panel holding member. The panel holding member 20 is elongated in one direction and has a substantially U-shape in which the cross-sectional shape is composed of a bottom surface portion 21 and a pair of standing portions 22 and 23 having different lengths standing up from both ends of the bottom surface portion. Doing The front end 22a of the short standing part 22 is bent obliquely outward so that the edge part of the mold panel 1 can be guided smoothly inside the panel holding member 20. As shown in FIG. Moreover, the opening part 24 which enables the operation of a nailing mechanism and a hammer in the short side standing part 22 when a concrete nail which fixes the said panel holding member on the poured concrete at the predetermined | prescribed interval in the bottom surface part is made possible. ) Is formed.

Moreover, the holding height adjustment piece 25 enclosed by the U-shaped cutting line two places up and down is provided in the both sides of the said opening part 24. As shown in FIG. The holding height adjusting piece 25 can be bent inward, and the lower end of the mold panel 1 is supported from the lower side in the bent state. The height of each holding height adjusting piece 25 is different, and the holding height of the mold panel 1 can be adjusted in four steps, including the case where no holding height adjusting piece is bent. In addition, biscuits 26 and 26 are formed in the vicinity of both sides of the opening 24.

At one end of the bottom surface portion 21 of the panel holding member 20, a notch 27 in the long direction is formed. The distal end portion 27a of the notch 27 is circular in diameter larger than the width of the notch so that stress does not concentrate. By forming this notch 27, the edge part of the panel holding member 20 can be bent so that the space | interval of a pair of standing part 21, 22 may become narrow, and therefore it stands up at the edge part of the other panel holding member 20. The edge part of the panel holding member 20 which narrowed the space | interval of a part is pinched inward, and the several panel holding member 20 can be joined together.

Next, the method of constructing the mold using the mold panel 1 and the panel holding member 20 will be described (see FIGS. 10 and 11).

First, the panel holding member 20 is fixed to the required position on the poured concrete 30 with concrete nails. When the concrete nail is nailed to the position of the bottom plate portion 21 facing the opening 24, the nailing mechanism and the hammer can be easily operated.

 Next, the mold panel 1 is erected in a state where the lower end portion is fitted inside the panel holding member 20. If the top surface of the poured concrete 30 has irregularities and the panel holding member 20 is not horizontal, as shown in FIG. 9, the lower end of the mold panel 1 is horizontal with the holding height adjusting piece 25. Adjust to The frame panels 1 are arranged in the horizontal direction, and the ribs 2A and 2B on the outermost side of the pair of adjacent mold panels 1 are temporarily fixed with a vis. At that time, the rib portion 2A on the side with the first separator insertion hole is made outward, and the screw is screwed in using the screw hole 8.

Thereafter, the mold panels 1 and 1 facing each other are connected to each other using the separator 31 and the form die 32. When arranging the form panels 1 using all the effective widths, end portions of the separators are formed in the first separator insertion holes 2A and the second separator insertion holes 2B of the pair of mold panels 1, respectively. It penetrates from inside to outside. As a result, as shown by the broken line in FIG. 2, the protruding portions 5 and 5 of the second separator insertion hole 2B are deflected outward through the first separator insertion hole 2A. Then, the foam die 32 is threadedly attached to the male screw 31a of the separator 31, and the refracted protrusions 5 and 5 are engaged with the protrusions 31b and 31b formed on the shaft portion of the separator so that the separator ( Since the rotation of 31 is constrained, the foam die 32 can be screwed securely. The inner end face of the foam die 32 is supported by the outer face of the rib portion 2A. By using the structure of this separator connection part, the spacer for thickness adjustment and the separator baffle washer which were used for the conventional metal mold | panel panel become unnecessary.

If the mold panel 1 or the wide mold panel 1 narrower than the standard width (for example, 600 mm) is required, this can be accommodated by expanding or reducing the expansion and contraction section 3. Moreover, in the corner part of a mold, etc., as shown to FIGS. 5-7, the mold panel 1 can be deformed and used for a desired shape. Rib portion 2 and expansion and contraction portion 3,... Since are arranged at relatively narrow intervals, a smooth surface close to the curved surface can be obtained.

In addition, when connecting the mold panels 1 and 1 to each other by inserting the separator 31 through the third separator insertion hole 4C, the inner portion of the contour of the third separator insertion hole 4C is removed. To form a predetermined rhombus hole, and the separator 31 is inserted therethrough. As shown in FIG. 3, the 3rd separator insertion hole 4C is made to match the direction of the large diameter (vertical direction) of the 3rd separator insertion hole 4C, and the direction of the protrusion part 31b of the separator 31. As shown in FIG. The separator 31 can be inserted through. In the state where the separator 31 is inserted into the third separator insertion hole 4C, since there is almost no margin between the inner circumferential surface of the third separator insertion hole 4C and the outer circumferential surface of the separator 31, The separator 31 does not shift even if an impact or vibration of the vibrator is applied.

If the mold panel 1 is erected, the reinforcing steel pipe 33 in the transverse direction is fastened and fixed to the outside of the mold panel 1 by the above method. Since the mold panel 1 is provided with a plurality of ribs 2 and expansion and contraction portions 3 in the longitudinal direction, the mold panel 1 has a high strength with respect to the bending in the longitudinal direction, despite being molded into an ultra-thin plate. Therefore, the mold of sufficient strength can be obtained only by providing the reinforcing steel pipe 33 in the horizontal direction.

Finally, as the upper cap of the mold panel 1, the panel holding member 20 is attached to the upper end of the mold panel 1. The panel holding member 20 is a simple structure consisting of a main body portion having a cross-sectional shape, and can be easily connected in the long direction by using a notch 27 formed at one end, and thus may be useful for the top cap. .

Then, concrete is poured into the mold. The surplus of concrete is discharged from the slit 7 formed in the rib part 2 and the expansion reduction part 3 to an appropriate degree, and concrete hardens to an ideal state. In the normal state, since the third separator insertion hole 4C is clogged, no concrete leaks from it. When the concrete has hardened, the reinforcing steel pipe 33 is dismantled to remove the foam die 32 from the separator 31. The mold panel 1 and the separator 31 are embedded again as they are.

As can be seen from the above description, since the frame panel of the present invention can be adjusted in width and can be bent along a longitudinal bend line, formwork of required dimensions and shapes can be easily constructed and various Since the separator insertion hole provided with the pore was formed, the separator work was easy to be installed, and the number of members required for the separator installation could be reduced.

In addition, in the form panel of the present invention, the separator insertion holes have different diameters in two directions orthogonal to each other, so that the protrusions of the separator can pass through the insertion holes, but there is less margin between the separator and the inner circumferential surface of the separator insertion holes. The separator is structured so that it does not shift. Therefore, by using the mold panel of the present invention, deformation and breakage of the mold due to the impact during the concrete pouring or the vibration of the vibrator can be prevented, and the spilled concrete can be eliminated.

In addition, the panel holding member of the present invention can be easily fixed to the concrete poured using a nailing mechanism with a concrete nail, and furthermore, it is possible to adjust the holding height of the mold panel in response to the unevenness of the reference surface of the poured concrete. It is possible. In addition, the panel holding member of the present invention may also be useful for the top cap that covers the top of the mold panel.

Therefore, when the concrete mold is constructed by using the mold panel and the panel holding member of the present invention, the work efficiency is improved, the precision and strength of the constructed concrete mold are excellent, and the score of the accessory member can be reduced. Can be.

Claims (1)

When viewed from the outer side in the form assembly state, a separator insertion hole is formed in the concave rib portion, and the separator is inserted through the separator insertion hole so as to pass from the inner side to the outer side, and the outer surface of the separator. In a mold panel in which a foam die is attached to a portion protruding to the side, and the foam die is assembled in a state in which the foam die is in contact with the mold panel, one of the diameters of two directions perpendicular to the separator insertion hole is the diameter of the protrusion of the separator. A mold panel, characterized in that it is larger than the outer dimension and the other diameter is smaller than the outer dimension of the protrusion and larger than the diameter of the separator.

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