KR102010631B1 - plastic form - Google Patents

plastic form Download PDF

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Publication number
KR102010631B1
KR102010631B1 KR1020160012428A KR20160012428A KR102010631B1 KR 102010631 B1 KR102010631 B1 KR 102010631B1 KR 1020160012428 A KR1020160012428 A KR 1020160012428A KR 20160012428 A KR20160012428 A KR 20160012428A KR 102010631 B1 KR102010631 B1 KR 102010631B1
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KR
South Korea
Prior art keywords
transverse
thickness
central region
longitudinal
horizontal
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KR1020160012428A
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Korean (ko)
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KR20170091424A (en
Inventor
권순준
박춘호
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(주)엘지하우시스
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Priority to KR1020160012428A priority Critical patent/KR102010631B1/en
Publication of KR20170091424A publication Critical patent/KR20170091424A/en
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G9/00—Forming or shuttering elements for general use
    • E04G9/02—Forming boards or similar elements
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G9/00—Forming or shuttering elements for general use
    • E04G9/02—Forming boards or similar elements
    • E04G9/05—Forming boards or similar elements the form surface being of plastics
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G9/00—Forming or shuttering elements for general use
    • E04G9/02—Forming boards or similar elements
    • E04G2009/023—Forming boards or similar elements with edge protection
    • E04G2009/025—Forming boards or similar elements with edge protection by a flange of the board's frame
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G9/00—Forming or shuttering elements for general use
    • E04G9/02—Forming boards or similar elements
    • E04G2009/028—Forming boards or similar elements with reinforcing ribs on the underside

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

The present invention relates to a plastic formwork that can be easily handled as it is lighter, and that bending can be minimized as rigidity is improved, and includes: a frame formed of a metal; A base plate coupled to the frame and formed of plastic; wherein the base plate comprises: a plate-shaped body; And a plurality of transverse and longitudinal ribs formed on an upper surface of both ends of the body and an upper surface of the center side between the end sides, wherein the body and the transverse and longitudinal ribs are long fiber reinforced thermoplastics (LFT). : It is formed of Long Fiber Thermoplastic

Description

Plastic form

The present invention relates to a plastic formwork, and more particularly, to a plastic formwork that can be easily handled as it is lighter, and to minimize the occurrence of warpage as the rigidity is improved.

Exterior walls, slabs, columns, etc. of buildings are generally formed by pouring concrete.

In other words, after the formwork is installed, the concrete of the dough state is injected into the inside and cured by forming the outer wall, the slab, the pillar, and the like of the building.

On the other hand, the formwork is formed by the combination of the frame and the base plate, the past many of the formwork was formed of wood.

However, the wooden formwork has a problem that the number of times of leaching (less than 15 times) is not as expected due to the poor water resistance and durability due to the material properties. This was not smooth and there was a problem that the beauty of the appearance was reduced.

Metal formwork has been proposed to solve the problem of wood formwork.

Metal formwork had better water resistance and durability than wood formwork due to its material properties, so that it could not only increase the number of times, but also it was easy to dismantle and smooth the surface of hardened concrete. There was a problem that handling was difficult due to the considerable load.

For this reason, as disclosed in the Republic of Korea Patent Publication No. 10-0465263 (notice date: January 13, 2005) and the like, the use of plastic formwork formed of plastics, such as the base plate is increasing.

Plastic formwork is superior in water resistance and durability in terms of material properties, not only can increase the number of times dedicated, but also easy to dismantle, it can smooth the surface of the hardened concrete.

In addition, the plastic formwork can reduce the manufacturing cost compared to the metal formwork due to the material properties, it can be reduced in weight.

However, the conventional plastic formwork has a problem that the rigidity does not meet expectations or the load is considerable depending on the thickness of the base plate.

That is, if the thickness of the base plate is too thin, the rigidity is lowered, there is a problem that warpage occurs due to the side pressure generated during the concrete casting and curing process, if the thickness of the base plate is too thick, the load is considerable, that is, handling There was a problem in that it was difficult to transport and install.

For this reason, the field is seeking ways to reduce the weight and rigidity of plastic formwork, but until now have not obtained satisfactory results.

The present invention has been proposed in view of the above circumstances, and an object thereof is to provide a plastic formwork which can solve a problem that it is difficult to handle as the load of the conventional plastic formwork is considerable.

In addition, an object of the present invention is to provide a plastic formwork to solve the problem that the warpage occurs frequently during the concrete casting and curing process due to the rigidity of the conventional plastic formwork.

Plastic formwork according to the first embodiment of the present invention for achieving the above object, the frame formed of a metal; A base plate coupled to the frame and formed of plastic; wherein the base plate comprises: a plate-shaped body; And a plurality of transverse and longitudinal ribs formed on an upper surface of both ends of the body and an upper surface of the center side between the end sides, wherein the body and the transverse and longitudinal ribs are long fiber reinforced thermoplastics (LFT). : It is formed of Long Fiber Thermoplastic

The long fiber reinforced thermoplastic plastic includes at least one of polypropylene (PP: polypropylene), polyamide (PA: polyamide), and acrylonitrile butadiene styrene (ABS) as a resin, and is glass as long fibers. At least one of the fiber, carbon fiber, natural fiber.

The long fiber reinforced thermoplastics include 70-40% by weight of resin and 30-60% by weight of long fibers.

The frame has a support piece extending in the longitudinal direction and the width direction inside.

The body is formed with the end side thickness is 0.8-1.2 mm thicker than the center side thickness.

The minimum spacing between the transverse rib and the longitudinal rib on the center side is narrower than the minimum spacing between the transverse rib and the longitudinal rib on the end side.

The horizontal ribs and the longitudinal ribs on the central side are formed to have a narrower inner space than the edges of the edges.

The transverse and longitudinal rib thicknesses on the central side are formed 1.0-2.0 mm thicker than the transverse and longitudinal rib thicknesses on the end side.

The longitudinal rib thickness on the center side is formed 1.0-2.0 mm thicker than the transverse rib thickness on the center side.

The base plate may be coupled to the frame by riveting.

In addition, the plastic formwork according to the second embodiment of the present invention for achieving the above object, the frame formed of a metal; A base plate coupled to the frame and formed of plastic; wherein the base plate comprises: a plate-shaped body; And a plurality of horizontal and longitudinal ribs formed on an upper surface of both ends of the body and an upper surface of the center side between the end sides, wherein the body is formed of continuous fiber reinforced thermoplastic (CFT) therein. The reinforcing member is formed, the body and the horizontal and longitudinal ribs are formed of long fiber reinforced thermoplastic (LFT: Long Fiber Thermoplastic).

The long fiber reinforced thermoplastic plastic includes at least one of polypropylene (PP: polypropylene), polyamide (PA: polyamide), and acrylonitrile butadiene styrene (ABS) as a resin, and is glass as long fibers. At least one of the fiber, carbon fiber, natural fiber.

The long fiber reinforced thermoplastics include 70-40% by weight of resin and 30-60% by weight of long fibers.

The frame has a support piece extending in the longitudinal direction and the width direction inside.

The body is formed with the end side thickness is 0.8-1.2 mm thicker than the center side thickness.

The reinforcing member is embedded in the body, and disposed on the end side and the center side.

The reinforcing member may be formed integrally or separately.

The reinforcing member is formed integrally with the body by insert injection.

The minimum spacing between the transverse rib and the longitudinal rib on the center side is narrower than the minimum spacing between the transverse rib and the longitudinal rib on the end side.

The horizontal ribs and the longitudinal ribs on the central side are formed to have a narrower inner space than the edges of the edges.

The transverse and longitudinal rib thicknesses on the central side are formed 1.0-2.0 mm thicker than the transverse and longitudinal rib thicknesses on the end side.

The longitudinal rib thickness on the center side is formed 1.0-2.0 mm thicker than the transverse rib thickness on the center side.

The base plate may be coupled to the frame by riveting.

The plastic formwork according to the present invention, the body and the rib forming the base plate is formed of a long fiber reinforced thermoplastic, bar material can increase the rigidity of the product, the thickness of the body is formed thicker at the end side , The thickness and minimum spacing of the ribs are formed thicker and narrower at the center side, thereby increasing the rigidity of the product because the reinforcement for each part is made.

In addition, the plastic formwork according to the present invention, the reinforcing member formed of a continuous fiber-reinforced thermoplastic can be embedded in the body formed of long-fiber-reinforced thermoplastic, bar can further increase the rigidity of the product. .

In addition, the plastic formwork according to the present invention, the thickness of the body is formed thinner at the center side, the thickness and spacing of the ribs are formed thinner and wider at the end side, it is possible to minimize the material consumption for forming the body and ribs This makes the product lighter.

1 is a perspective view showing the external appearance of the plastic formwork according to the first embodiment of the present invention.
Figure 2 is an exploded perspective view for explaining the structure of the plastic formwork according to the first embodiment of the present invention.
Figure 3 is a cross-sectional view for explaining the structure of the base plate in the plastic formwork according to the first embodiment of the present invention.
Figure 4 is a plan view for explaining the structure of the base plate in the plastic formwork according to the first embodiment of the present invention.
5 is an exploded perspective view for explaining the structure of the plastic formwork according to the second embodiment of the present invention.
Figure 6 is a cross-sectional view for explaining the built-in reinforcing member in the body of the base plate in the second embodiment of the present invention.
Figure 7 is an exemplary view showing a built-in reinforcing member on the body of the base plate in the second embodiment of the present invention.
Figure 8 is an exemplary view showing another internal form of the reinforcing member on the body of the base plate in the second embodiment of the present invention.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

As shown in FIGS. 1 and 2, the plastic formwork A according to the first embodiment of the present invention includes a frame 10 and a base plate 20.

The frame 10 is made of metal.

The frame 10 is provided with a support piece 11 extending in the longitudinal direction and the width direction.

Since the frame 10 includes the support piece 11, the frame 10 is prevented from being twisted and warped by the support by the support piece 11.

The base plate 20 is coupled to the frame 10 and formed of plastic.

The base plate 20, the plate-like body 21; And a plurality of horizontal and longitudinal ribs 22 formed on the upper surface of the central side 21b between the upper surface of both end portions 21a of the body 21 and the end side 21a.

In this case, the body 21 and the transverse and longitudinal ribs 22 are formed of long fiber reinforced thermoplastic (LFT: Long Fiber Thermoplastic), thereby improving the rigidity of the base plate 20 due to the properties of the material.

Here, the long fiber reinforced thermoplastic plastic, at least any one of polypropylene (PP: polypropylene), polyamide (PA: polyamide), acrylonitrile butadiene styrene (ABS) as a resin, the long fiber And at least one of glass fiber, carbon fiber, and natural fiber.

Polypropylene, polyamide, acrylonitrile butadiene styrene is not only lightweight but also excellent in physical properties, that is, tensile strength, impact strength, flexural strength, etc., the base plate 20 is light in weight and stable in physical properties.

However, when the long fiber is included in less than 30% by weight in the long-fiber reinforced thermoplastics, the stiffness improvement may be insignificant, when the long fiber is included in excess of 60% by weight, as well as increase the manufacturing cost of the long fiber to the outside of the resin Exposure may follow.

Therefore, it is preferable that the long fiber reinforced thermoplastic plastic contains 70-40% by weight of resin and 30-60% by weight of long fibers.

The thickness of the end side 21a of the body 21 is 0.8-1.2 mm thicker than the thickness of the center side 21b of the body 21, for example, the end side 21a of the body 21. ) 3.0 mm thick, and the center side 21 b of the body 21 is 2.0 mm thick, thereby improving the rigidity of the end side 21 a of the body 21.

Here, when the difference between the thickness of the end side 21a of the body 21 and the thickness of the center side 21b of the body 21 is less than 0.8mm, the rigidity improvement effect by increasing the thickness may be insignificant, If the difference between the thickness of the end side 21a of the body 21 and the thickness of the center side 21b of the body exceeds 1.2 mm, the cost burden due to the increase in material requirements is followed, the body 21 The end side 21a thickness of the body 21 is preferably formed to be 0.8-1.2mm thicker than the thickness of the center side 21b of the body (21).

And the minimum spacing between the transverse and longitudinal ribs 22 on the center side 21b is narrower than the minimum spacing between the transverse and longitudinal ribs 22 on the end side 21a, for example the center The minimum spacing between the transverse and longitudinal ribs 22 on the side 21b is 18.0 mm, and the minimum spacing between the transverse and longitudinal ribs 22 on the end 21a is 20.0 mm. As a result, the rigidity of the center side 21b in which the thickness of the body 21 is thinner than the end side 21a is improved.

And the interval between the horizontal and longitudinal ribs 22 of the central side (21b) is formed in a narrower inner side than the edge so that the thickness of the body 21 is formed thinner than the end side (21a) The inner rigidity of the center side 21b is improved.

And the thickness of the transverse and longitudinal ribs 22 on the central side 21b is 1.0-2.0 mm thicker than the thickness of the transverse and longitudinal ribs 22 on the end side 21a. The thicknesses of the horizontal and longitudinal ribs 22 on the center side 21b are 5.0 mm and 6.5 mm, respectively, and the thickness of the horizontal and longitudinal ribs 22 on the end side 21a are 4.0 mm, respectively. The stiffness of the center side 21b, in which the thickness of the body 21 is formed thinner than that of the end side 21a, is improved.

Here, when the thickness difference between the transverse and longitudinal ribs 22 thickness of the center side 21b and the transverse and longitudinal ribs 22 of the end side 21a is less than 1.0 mm, the thickness increases. Stiffness improvement effect may be insignificant, and a difference between the thickness of the horizontal and longitudinal ribs 22 on the center side 21b and the thickness of the horizontal and longitudinal ribs 22 on the end side 21a is 2.0. If it exceeds mm, the cost burden due to the increase in material requirements will be followed, the thickness of the transverse and longitudinal ribs 22 on the central side 21b is the transverse and longitudinal direction of the end side 21a. It is preferable to form 1.0-2.0 mm thicker than the thickness of the directional rib 22.

And the thickness of the longitudinal rib 22 of the center side 21b is formed 1.0-2.0mm thicker than the thickness of the transverse rib 22 of the center side 21b, for example of the center side 21b The longitudinal rib 22 has a thickness of 6.5 mm, and the thickness of the horizontal rib 22 of the center side 21 b is 5.0 mm, thereby forming the horizontal rib 22 at the center side 21 b. Rigidity of the longitudinal ribs 22 on the center side 21b, which is formed longer than that of FIG.

Here, when the difference between the thickness of the longitudinal ribs 22 on the center side 21b and the thickness of the transverse ribs 22 on the center side 21b is less than 1.0 mm, the effect of increasing the rigidity due to the increase in thickness is insignificant. And the difference between the thickness of the longitudinal ribs 22 on the center side 21b and the thickness of the transverse ribs 22 on the center side 21b exceeds 2.0 mm, As the burden of the image is followed, the thickness of the longitudinal ribs 22 on the center side 21b is preferably 1.0-2.0 mm thicker than the thickness of the horizontal ribs 22 on the center side 21b. .

On the other hand, the coupling between the base plate 20 and the frame 10 may be any conventional coupling method as long as the coupling state can be solidified, one example may be riveting.

The height of the horizontal and longitudinal ribs 22 of the center side 21b and the height of the horizontal and longitudinal ribs 22 of the end side 21a are the same in the base plate 20. Is formed.

However, recesses (not shown) are formed in the horizontal and vertical ribs 22 on the center side 21b and the horizontal and vertical ribs 22 on the end side 21a. As the bottom surface of the frame 10 including the support piece 11 is seated in the recessed portion, the frame 10 and the base plate 20 are closely coupled.

In addition, as shown in FIG. 5, the plastic formwork A ′ according to the second embodiment of the present invention includes a frame 10 ′ and a base plate 20 ′.

In this case, the frame 10 'and the base plate 20' are the same as the frame 10 and the base plate 20 described in the first embodiment.

However, the base plate 20 ′ has a reinforcing member 30 formed of a continuous fiber reinforced thermoplastic (CFT) inside the body 21, so that the base plate 20 ′ is formed on the material characteristics of the reinforcing member 30. The rigidity of the base plate 20 'is improved.

At this time, the reinforcing member 30 is embedded in the body 21, the end side 21a and the center side 21b by being disposed on the end side (21a) by the reinforcing member 30 And stiffness of the central side 21b.

In addition, the reinforcing member 30 may be integrally formed as shown in FIG. 7, and may be formed as a separate type as illustrated in FIG. 8.

When the reinforcing member 30 is formed in a separate type, it is possible to reduce the inconvenience of cutting the reinforcing member 30 in one piece as well as to take advantage of the puncture generated when the reinforcing member 30 is cut in one piece. This can reduce the cost.

The reinforcing member 30 is inserted into an injection molding, that is, the reinforcing member 30 is disposed in a mold (not shown), and then the upper and lower surfaces of the reinforcing member 30 are respectively melted resin, that is, molten long fiber. As the reinforcing thermoplastics are injected, the body 21 is formed integrally with the horizontal and longitudinal ribs 22 as well as the reinforcing member 30, the body 21, and the horizontal and vertical directions. Not only the coupling state of the ribs 22 is firm, but also the reinforcing member 30, the body 21, and the horizontal and longitudinal ribs 22 are simply combined without a separate coupling operation.

Hereinafter, the rigidity improvement in the plastic formwork A and A 'according to the present invention will be described in detail.

In the present invention, the body 21 and the horizontal and longitudinal ribs 22 forming the base plates 20 and 20 'are formed of long fiber reinforced thermoplastics (LFT: Long Fiber Thermoplastic). In addition, the rigidity of the base plates 20 and 20 'is improved due to the material characteristics of the body 21 and the horizontal and longitudinal ribs 22.

Therefore, the bending of the base plates 20 and 20 'is minimized in the storage, transport and installation state, thereby preventing construction failure due to the bending of the base plates 20 and 20'.

And the body 21 in the present invention, as shown in Figure 3, the thickness of the end side 21a is formed thicker than the thickness of the center side 21b, bar rigidity of the end side 21a is improved do.

Therefore, the bending of the base plates 20 and 20 ', in particular, the end side 21a is minimized in the storage, transport and installation state, thereby preventing construction failure due to the bending of the end side 21a.

The interval between the transverse and longitudinal ribs 22 on the central side 21b is narrower than the interval between the transverse and longitudinal ribs 22 on the end side 21a as shown in FIG. 4. It is formed, the rigidity of the center side 21b is formed to be thinner than the end side 21a of the thickness of the body 21 is improved.

Therefore, the bending of the base plates 20, 20 ', in particular, the center side 21b is minimized in the storage, transport and installation state, thereby preventing construction failure due to the bending of the center side 21b.

In addition, the thickness of the horizontal and vertical ribs 22 on the center side 21b is equal to the horizontal and vertical ribs of the end side 21a as shown in FIG. 4 (upper part enlarged display portion). 22) Since the thickness is formed thicker than the thickness, the rigidity of the central side 21b, which is formed thinner than the end side 21a, is further improved.

Therefore, the bending of the base plates 20 and 20 ', in particular, the center side 21b is minimized in the storage, transport, and installation states, thereby further preventing construction failure due to the bending of the center side 21b.

The thickness of the longitudinal ribs 22 on the center side 21b is thicker than the thickness of the horizontal ribs 22 on the center side 21b, as shown in FIG. When formed, the stiffness of the longitudinal ribs 22 in the center side 21b is improved.

Therefore, the warp of the base plates 20 and 20 ', in particular, the center side 21b and the longitudinal rib 22 in the storage, transport and installation state is minimized, so that the center rib 21b and the longitudinal rib 22 are minimized. The occurrence of poor construction due to the bending of the pipe is prevented.

In addition, in the present invention, the reinforcing member 30 formed of continuous fiber reinforced thermoplastic (CFT) is formed in the body 21 forming the base plate 20 'as shown in FIG. 6. Can be built in, the rigidity of the base plate 20 'is improved due to the material properties of the reinforcing member (30).

Therefore, the bending of the base plate 20 'is minimized in the storage, transportation, and installation states, thereby preventing construction failure due to the bending of the base plate 20'.

However, when the reinforcing member 30 is built only on any one side of the body 21, the base plate 20 'may be partially weakened.

However, in the present invention, the reinforcing member 30 is built in the body 21, and is disposed on the end side 21a and the center side 21b, so that the end side by the reinforcing member 30. The rigidity of the 21a and the center side 21b can be evenly increased.

On the other hand, the plastic formwork (A, A ') according to the present invention can reduce the weight of the product.

That is, in the present invention, the body 21 is formed to be thinner than the thickness of the end side 21a of the center side 21b, and the horizontal and longitudinal ribs 22 of the end side 21a are formed. The thickness and spacing are thinner and wider than the horizontal and longitudinal ribs 22 of the central side 21b, and the body 21 and the horizontal and longitudinal ribs 22 are formed. Material consumption for forming can be minimized and the product can be made lighter.

As the weight of the product is reduced, the handling of the product is easy, and thus the product is easily stored, transported, and installed.

Plastic form (A, A ') according to the present invention as described above, the body 21 and the rib 22 forming the base plate (20, 20') is formed of a long fiber reinforced thermoplastic plastic Bar, it is possible to increase the rigidity of the product due to the material properties of the base plate (20, 20 '), the thickness of the body 21 is formed thicker at the end side (21a), the thickness of the rib 22 and The minimum spacing is formed thicker and narrower at the center side 21b, whereby reinforcement is performed for each part, thereby increasing the rigidity of the product, and continuous fiber-reinforced thermoplastics in the body 21 formed of long fiber-reinforced thermoplastics. The reinforcing member 30 formed of plastic may be built in, and the rigidity of the product may be further increased due to the material properties of the reinforcing member 30, and the thickness of the body 21 may be increased at the center side 21b. Thinner, The thickness and the minimum spacing of the ribs 22 are formed thinner and wider at the end side 21a, so that material consumption for forming the body 21 and the ribs 22 can be minimized to reduce the weight of the product. Can be.

Example 1

Forming the formwork was formed by combining a base plate formed of a long fiber reinforced thermoplastic, a plurality of transverse and longitudinal ribs formed on the upper end surface and the central upper surface of the body and the frame formed of metal.

At this time, the body end side thickness was formed to 3mm, the body center side thickness was formed to 2mm, the thickness of each of the end side transverse and longitudinal ribs was formed to 4mm, the minimum gap between the end side transverse and longitudinal ribs Was formed to 20mm, the thickness of each of the center side horizontal ribs and longitudinal ribs was 5.0mm and 6.5mm, the minimum spacing between the center side horizontal ribs and longitudinal ribs was formed to 18mm.

Example 2

The base plate is formed of a long fiber reinforced thermoplastic, a plurality of horizontal and longitudinal ribs are formed on the upper end surface and the central side of the body, and a base plate having a reinforcing member formed of a continuous fiber reinforced thermoplastic is formed therein. Formwork was prepared by combining with the frame.

At this time, the body end side thickness was formed to 3mm, the body center side thickness was formed to 2mm, the thickness of each of the end side transverse and longitudinal ribs was formed to 4mm, the minimum gap between the end side transverse and longitudinal ribs Was formed to 20mm, the thickness of each of the center side horizontal ribs and longitudinal ribs was 5.0mm and 6.5mm, the minimum spacing between the center side horizontal ribs and longitudinal ribs was formed to 18mm.

As described above, the present invention is not limited to the above-described embodiments, and may be changed within the scope not departing from the gist of the present invention as claimed in the claims, and such changes are defined by the following claims. It is within the protection scope of the invention.

10 body 11: support piece
20, 20 ': base plate 21: body
21a: end side 21b: center side
22: rib 30: reinforcing member
A, A ': plastic formwork

Claims (14)

A frame formed of metal;
A base plate coupled to the frame and formed of plastic;
The base plate,
Plate-shaped body; And a plurality of transverse and longitudinal ribs formed on an upper surface of the central side region located between the upper surface of both end side regions of the body and the end side region, wherein the body and the transverse and longitudinal ribs are long fiber reinforced. It is formed of thermoplastic (LFT: Long Fiber Thermoplastic),
The thickness of the body is formed to be 0.8-1.2mm thicker than the thickness of the central region of both end side regions facing each other centered on the central region,
The minimum spacing between the transverse and longitudinal ribs included in the central region is narrower than the minimum spacing between the transverse and longitudinal ribs included in the end region.
The horizontal and vertical ribs included in the central region have a smaller spacing between the horizontal and vertical ribs located at the inner center than the horizontal and vertical ribs located at both edges.
The transverse and longitudinal rib thicknesses included in the central region are 1.0-2.0 mm thicker than the transverse and longitudinal rib thicknesses included in the end region.
Wherein said longitudinal rib thickness included in said central region is 1.0-2.0 mm thicker than said transverse rib thickness included in said central region.
A frame formed of metal;
A base plate coupled to the frame and formed of plastic;
The base plate,
Plate-shaped body; And a plurality of transverse and longitudinal ribs formed on an upper surface of a central side region located between the upper end surfaces of both end portions of the body and the end side region, wherein the body includes a continuous fiber reinforced thermoplastic (CFT). A reinforcing member formed of Fiber Thermo plastics is embedded, and the body and the horizontal and longitudinal ribs are formed of long fiber reinforced thermoplastic (LFT).
The thickness of the body is formed to be 0.8-1.2mm thicker than the thickness of the central region of both end side regions facing each other centered on the central region,
The minimum spacing between the transverse and longitudinal ribs included in the central region is narrower than the minimum spacing between the transverse and longitudinal ribs included in the end region.
The horizontal and vertical ribs included in the central region have a smaller spacing between the horizontal and vertical ribs located at the inner center than the horizontal and vertical ribs located at both edges.
The transverse and longitudinal rib thicknesses included in the central region are 1.0-2.0 mm thicker than the transverse and longitudinal rib thicknesses included in the end region.
The longitudinal rib thickness included in the central region is 1.0-2.0 mm thicker than the horizontal rib thickness included in the central region.
The reinforcing member is disposed in the body in a plurality of separate forms, the center and the center side of the side and are arranged while connecting the end side area and the center side area of both sides on the basis of the center. Plastic formwork.
The method according to claim 1 or 2,
The long fiber-reinforced thermoplastics include at least one of polypropylene (PP: polypropylene), polyamide (PA: polyamide), and acrylonitrile butadiene styrene (ABS) as resin, and glass as long fibers. Plastic formwork comprising at least one of fibers, carbon fibers, natural fibers.
The method of claim 3,
The long fiber-reinforced thermoplastics, the plastic formwork comprising a resin 70-40% by weight, long fiber 30-60% by weight.
The method according to claim 1 or 2,
The frame is a plastic formwork having a support piece extending in the longitudinal direction and the width direction inside.
delete delete delete delete delete The method according to claim 1 or 2,
Wherein said baseplate is coupled to said frame by riveting.
delete delete The method of claim 2,
The reinforcement member is a plastic formwork is formed integrally with the body by insert injection.
KR1020160012428A 2016-02-01 2016-02-01 plastic form KR102010631B1 (en)

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KR102010631B1 true KR102010631B1 (en) 2019-08-13

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