JPH0355711Y2 - - Google Patents

Description

[Detailed description of the invention] <Industrial application field> This invention is used, for example, in the field of civil engineering and construction, to assemble a concrete formwork using a plurality of concrete face plates and separators for the purpose of concrete pouring. This invention relates to an improved holding member for a concrete face plate and a separator.

<Prior art> In general, the structure of conventional formwork using wooden concrete face plates in formwork for concrete pouring is as follows:
As shown in Fig. 5, a framework structure is constructed by combining beam materials called vertical beams B and B' and beam materials called horizontal beams C and C' in a lattice shape, each having a length corresponding to the predetermined dimensions of the structure. Objects face each other at a predetermined interval, and inside the vertical sides B and B' of these frame structures, there is a concrete structure with plates A ₂ and A ₂ ' pasted to the frame members A ₁ and A ₁ '. The outer surfaces of face plates A and A' are in contact with each other, and the concrete face plates A and A' are connected to the fifth point at the intersections of vertical flaps B and horizontal flanks C, and vertical flanks B' and horizontal flanks C', respectively.
The separator 21 has terminals 22, 22 screwed onto both ends of the structure as shown in the figure, and is firmly attached by tightening bolts 23, 23 and nuts 24, 24. The spacing between concrete face plates A and A' is maintained to form a space for concrete filling, and at the same time, multiple concrete face plates are similarly connected by vertical spans B and B' and horizontal spans C and C' to form a concrete filling space. The two planes are held together to form the concrete formwork.

After pouring concrete, remove the nuts 24, remove the concrete face plates A, A', the vertical ribs B, B', and the horizontal ribs C, C', and then remove the tightening bolts 23,
23 and the terminals 22, 22 are removed with a spanner or the like to obtain concrete in which the ends of the separator 21 are recessed from the concrete surface.

<Problems to be solved by the invention> On the other hand, in the conventional example described above, an expensive separator having threaded portions at both ends is required as a separator to hold the facing concrete face plates A and A' at a predetermined distance. In order to connect a plurality of concrete face plates in order to obtain a surface area of

Furthermore, removal of the formwork after concrete pouring and treatment of the ends of the separator were all operations using screws, which had the disadvantage of requiring a lot of work.

Therefore, the present invention uses an inexpensive separator made of plate material to connect a wooden concrete face plate, and uses an improved holding member to significantly reduce the man-hours in the conventional framing and finishing processes during concrete pouring. The purpose is to achieve this goal.

<Means for solving the problems> The configuration of the present invention for achieving the above object will be explained using FIGS. 1 to 4 corresponding to the embodiments.
The present invention is a holding member for a concrete face plate and a separator of a barrel in which a concrete formwork is assembled by combining a plurality of concrete face plates together with a separator, and is a holding member for a concrete face plate and a separator.
10', and a gap 5 through which the locking portion 8 of the separator 7 is inserted from near the center of the substrate portion 2.
It consists of two ribs 3, 3' standing perpendicularly to the substrate part 2 and spacers 4, 4' maintaining the distance between the two ribs 3, 3'. , 3' are provided with a hole 6 in the center thereof, through which the U-clip 12 is inserted.

<Function> The present invention uses the above-mentioned means to provide a separator 7 in which a cone 11 for forming a concave portion for filling a rust preventive material in the separator 7, which is made by rolling a plate material, is attached at the end between the adjacent concrete face plates 10 and 10'. Locking part 8
The locking part 8 is inserted into the gap 5 between the ribs 3 and 3' of the holding member 1, and the base plate 2 of the holding member 1 is placed adjacent to the holding member 1 while being connected to the holding member 1 by a U clip. Concrete face plate 10,1
The formwork made up of a plurality of concrete face plates is held at a constant interval by straddling and abutting the outer surface of the concrete plate 0' and sandwiching it between the base plate 2 and the cone forming cone 11 attached to the separator 7. This structure not only simplifies the concrete formwork assembly process by simply connecting the concrete face plates with each other using simple connecting members (not shown), but also eliminates the need for a lattice consisting of vertical and horizontal strips as in the conventional case. Moreover, the ends of the separator remaining on the concrete surface can be simply broken off, and a recessed part to be filled with mortar for rust prevention of the ends of the separator is simultaneously formed on the concrete pouring surface. The Rukoto.

<Example> An example of the present invention will be explained with reference to the drawings below. Fig. 1 shows Example 1 of the concrete face plate holding member according to the present invention, and shows the outer surface of the concrete face plate 10, 10' to be held. A flat board part 2 is brought into contact with the board part 2, and two ribs 3 stand up from the board part 2 with a gap 5 inserted through a flat locking part 8 of a separator 7 made of pressed plate material such as iron. ，
3', and a hole 6 into which the U clip 12 is inserted is bored in the center of the two ribs 3, 3'.

Furthermore, the separators 4, 4' are sandwiched between the ribs 3, 3' to prevent the gap 5 formed by the ribs 3, 3' from deforming due to external force or the like. The holding member 1 of this embodiment 1 is made by folding an iron plate in two with a gap 5 in between.
Bend the ends upward and downward, respectively, and attach the board part 2.
It has a structure that forms a

FIG. 2 is a sectional view showing the main part of a concrete formwork connected to a separator using the holding member according to the present invention, and shows the concrete face plate 10 to be held,
10' are placed adjacent to each other with the locking part 8 of the separator 7 sandwiched between their sides, and the concrete face plate 1
The locking part 8 protruding outward from the holding member 1 is inserted into the gap 5 of the holding member 1, the base plate part 2 is brought into contact with the outer surface of the concrete face plate 10, 10', and then the U clip 12 is inserted into the holding member 1. 1 hole 6 and the hole 6
The separator 7 and the holding member 1 are inserted through the engaging hole 9 drilled in the locking part 8 of the separator 7 that matches the
and fix it.

A cone 11 for forming a recess for filling the separator end with rust prevention mortar is attached to the concrete surface of the separator 7 in advance.
0', the outer periphery of the recess-forming cone 11 comes into contact with the inner surface of each concrete face plate 10, 10' to prevent concrete from flowing into the ends of the separator 7.

A plurality of pin holes 13 are bored in the separator 7 to connect the intermediate separators to adjust the length. 1
1 and outside the concrete face plates 10 and 10', respectively,
Allows contact with the inner surface.

FIG. 3 shows a second embodiment, in which both ends of the part corresponding to the base plate part 2 of one iron plate are folded back, and from the middle, parts corresponding to the ribs 3 and 3' are continued outward and vertically. It is bent and formed into a palm-shaped shape with spacers 4 and 4' in between to form a gap 5 and a hole 6 in the center. Compared to the first embodiment, this embodiment has a structural feature in that the substrate portion 2 is a continuous single plate.

FIG. 4 shows Embodiment 3, in which both sides of one of the ribs 3 and 3' in Embodiment 2 are extended, with the part corresponding to the gap 5 removed.
The extended portions are bent inward to form spacers 4, 4'. This example includes Examples 1 and 2.
It has a structural feature that does not require a spacer as a separate member.

In the above-mentioned embodiments, all of the holding members have a bent structure of a single plate or a structure similar to that, but the manufacturing direction of the holding member may be a welded structure of a plate material, and the structure is not limited to the structure of the above-mentioned embodiments.

Although the embodiments considered to be representative of the present invention have been described above, the present invention is not necessarily limited to the structures of these embodiments. It can be implemented with appropriate modification within the scope of achieving the following effects.

<Effects of the invention> Since the present invention has the above-mentioned configuration, these holding members can be easily manufactured from a single plate by pressing, and since a separator similarly manufactured by pressing can be used, it is possible to use a concrete formwork structure. It has the advantage of being a very low-cost component.

When constructing a concrete form using the holding member according to the present invention, it is extremely effective because it can be constructed without requiring vertical or horizontal flaps by simply using a separate simple connecting member (not shown). It is simple, and furthermore, this holding member can be used repeatedly, and together with this, it is easy to reduce construction costs.

Furthermore, since the treatment of the end portion of the separator after concrete is poured is as simple as simply breaking off the locking portion of the separator, it also has the effect of significantly reducing the amount of treatment of the pouring surface.

[Brief explanation of the drawing]

FIG. 1 shows Example 1 of the holding member according to the present invention.
FIG. 2 is a cross-sectional view of a main part of a concrete form using the holding member of the present invention, FIG. 3 is a perspective view of Embodiment 2 of the present invention, and FIG. 4 is a perspective view of Embodiment 3 of the same. , FIG. 5 is a sectional view of a conventional concrete formwork. 1 is a holding member, 2 is a substrate part, 3 and 3' are ribs,
4 and 4' are spacers, 5 is a gap, 6 is a hole, 7 is a separator, 8 is a locking part, 10 and 10' are concrete face plates, 11 is a cone for forming a recess, and 12 is a U clip.

Claims (1)

[Scope of utility model registration request] It is a holding member for concrete face plates for assembling concrete formwork by combining a plurality of concrete face plates together with a separator, and is in contact with the outer surface of the boundary between adjacent concrete face plates 10, 10'. A substrate section 2 that extends along the substrate section 2, and two ribs 3 that stand up perpendicularly to the substrate section 2 from near the center of the substrate section 2, with a gap 5 through which the locking portion 8 of the separator 7 is inserted. 3' and said 2
A spacer 4 that maintains the distance between the ribs 3 and 3';
4', and a hole 6 for inserting a U-clip 12 is bored in the center of the ribs 3, 3'.