JP2852230B2 - Weir board for concrete formwork - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dam for concrete formwork used for constructing a concrete formwork.

[0002]

2. Description of the Related Art A conventional dam for a concrete form (hereinafter simply referred to as a dam) is made of a plate, aluminum, synthetic resin or the like.

[0003]

When assembling a concrete form using the above-mentioned conventional weir board and casting concrete to construct a concrete building, the surface of the weir board to which the poured concrete is applied is a plate, Casting concrete is in direct contact with the surface of a material such as aluminum or synthetic resin.
Therefore,

(1) The surface of the weir plate is easily damaged by a vibrator or the like.

(2) When the concrete form is dismantled after consolidation of the concrete, the weir plate is not easily peeled off from the concrete wall because the peeling of the weir plate is not good, and the surface finish of the concrete wall is not good.

(3) Since the through holes of the separator and the like are formed in the weir plate, the weir plate is damaged.

[0007]

SUMMARY OF THE INVENTION The present invention is simple in processing, does not rust, and is hardly damaged by a vibrator or the like.
It is another object of the present invention to provide a concrete form dam for a concrete formwork which can be easily peeled off from a concrete wall and can finish the concrete wall satisfactorily and is practically useful.

That is, an upper edge frame made of aluminum, synthetic resin, or the like is provided on the rear surface with a horizontal groove on the upper surface at the center, a horizontal protrusion on the lower surface, and a horizontal protrusion on the upper surface and the lower surface of the center. A barrier plate body integrally formed with a lower edge frame provided with horizontal ribs on the upper and lower surfaces of a middle portion, a central portion, and a stainless steel plate that covers a surface of the barrier plate body which is to be cast concrete. An upper engaging piece with an upper edge frame of the barrier plate main body at the upper end portion made of aluminum, synthetic resin, etc.
An intermediary portion has a sandwiching piece that engages with the crosspiece of the weir plate body, a lower end portion has a lower engaging piece with the lower edge frame of the weir plate body, and the upper engaging piece, the sandwiching piece, and the lower engaging piece. A concrete form dam plate is formed by integrally molding a piece to be applied to the back surface of the dam plate body between the front side edges of the pieces and by fitting the small end plates to both end portions of the dam plate body. In addition to being easily processed and not rusting, it is not easily damaged by a vibrator or the like, and it is easy to peel off from the concrete wall, and the purpose of making the finish of the concrete wall good and practically useful,
A dam body for a concrete formwork made of aluminum, synthetic resin, and the like, and a stainless steel plate covering the surface of the damping board body which is to be cast into concrete are integrally formed. This was achieved by engaging small fittings with each other and engaging the concrete with the stainless steel plate.

[0009]

BRIEF DESCRIPTION OF THE DRAWINGS The drawings show one embodiment of the present invention, and the structure will be described with reference to the drawings. (A) shows a dam for a concrete form, and (4) shows aluminum of the dam (a). Plate body made of a synthetic resin, etc.
Edge frames (1) and (2) are integrally formed above and below the rear surface of the frame, and a crosspiece (3) is integrally formed above and below the intermediate portion. A lateral groove (6) is formed on the upper surface of the central portion of the upper edge frame (1). Horizontal protrusions (7) are provided on the lower surface, and horizontal protrusions (8) and (8) are provided on the upper surface and lower surface of the central portion of the crosspiece (3), and the upper surface and lower surface of the central portion of the lower edge frame (2) are provided. Are provided with horizontal protrusions (9) and (10), respectively.

On the other hand, a stainless steel plate (5) is integrally formed on the surface of the dam board body (4), which is to be cast into concrete, when the dam board body (4) is formed of aluminum, synthetic resin or the like. Weir plate body (4) with steel plate (5)
Is prepared.

(11) and (12) are small panels on both sides of the weir plate body (4), made of aluminum, synthetic resin, etc., and provided with a concave groove (14) at the center of the upper edge of the side plate (13). Engagement pieces (15) and (16) are provided at upper and lower ends of the inside, upper and lower engagement pieces (15) and (16) and sandwiching pieces (17) and (17) are sandwiched above and below the middle part. ) Are formed integrally with each other between the front-side edges, a lateral groove (19) is formed at the center of the upper surface of the upper engaging piece (15), and the center is located between the sandwiching pieces (17). A space where the part swells up and down (20)
Are provided in the center of the lower surface of the lower engagement piece (16), respectively.

A ridge (22) extending from the outer surface to the lower surface of the side plate (13) of the one-side small panel (11) is provided at an outer central portion of the one-side small panel (11). At the outer central portion of (12), grooves (23) extending from the outer surface to the lower surface of the side plate (13) of the other small panel (12) are provided.

Then, as shown in FIG. 2, on both sides of the weir plate main body (4), small discs (11), (12)
Abutment piece (18) is applied to the end of the back surface of the weir board body (4), and the lateral groove (19) of the upper engagement piece (15) is made to project from the upper edge frame (1) of the weir board body (4). At the end of the strip (7), the gap (20) of the sandwiching piece (17) of the small discs (11) and (12)
The bar (3) with the horizontal protrusions (8), (8) of the weir plate body (4)
At the end of the lower engaging pieces (1) of the small discs (11) and (12).
6) Insert the lateral groove (21) into the lower edge frame (2) of the dam board body (4).
As shown in FIG. 1, the small panels (11) and (12) are engaged with the ends of the upper horizontal ridges (9), respectively, so that
Into the small plate (1) on both ends of the weir plate body (4).
1) and (12) are fitted to form a weir plate (a).

Reference numeral (24) denotes a separator hole pier interposed between the weir plates (a) and (a), which is made of synthetic resin or the like. A lateral groove (25) is provided at the center of the upper surface of the pier (24) and the lower surface thereof is provided. A horizontal protrusion (26) is provided at the center, and a plurality of through holes (27) in the front-rear direction are arranged in parallel at appropriate intervals.

(28) is a dam plate connecting device which bends a metal piece into a U-shape, bends a tip end of the upper piece downward, and bulges a central portion of the lower piece downward to form an inward groove. (29) is provided,
The upper piece is formed so as to be inclined downward on one side.
(30) is a high wedge, and a wedge-shaped groove (31) is provided in the center of the lower surface. (32) is a low wedge, and a wedge-shaped groove (33) is provided in the center of the lower surface.

A separator (34) is provided with screws (35) at both ends, and a stopper (36) is formed slightly inward at both ends to connect the frusto-conical terminal (37) to the stopper (36). Fit. Reference numeral (38) denotes a tightening bolt, which is provided with a screw hole (not shown) at the center of the base end face, forms a screw (39) at the distal end, and forms a screw (39) at the distal end screw (39) of the tightening bolt (38). The center hole of the presser washer (40) is loosely fitted and the nut (41) is screwed.

(B) is the vertical flapping of the square pipe, (c),
(C) is a side wall of a square pipe, and (d) is a concrete wall constructed by casting concrete.

The operation will be described. As shown in the upper part of FIG. 9, the horizontal groove (6) of the upper edge frame (1) of the lower weir plate (a) is engaged with the horizontal protrusion (10) of the lower edge frame (2) of the upper weir plate (a). In combination, the upper weir plate (a) is superimposed on the lower weir plate (a).

Next, at appropriate portions of the overlapping portion of the upper and lower dams (a), (a), the damper connecting member (28) is connected to the upper edge frame (1) of the lower dam (a) and the upper dam (1). a) The lower edge frame (2) of FIG.
Is engaged with the lateral ridge (7) of the upper edge frame (1) of the lower weir plate (a), and then the groove (31) of the wedge (30) is inserted into the lower edge frame of the upper weir plate (a). 2) is engaged with the lateral protrusions (9), and the high wedges (30) are driven into the weir plate connector (28) to integrally tighten the upper and lower weir plates (a) and (a). .

On the other hand, at the mounting location of the separator (34), as shown in the lower part of FIG. 9, a pier (24) is interposed between the vertically overlapping weir plates (a), (a), and The lateral ridge (26) of (24) and the horizontal groove (6) of the upper edge frame (1) of the lower weir plate (a), the horizontal groove (25) of the crosspiece (24) and the lower edge frame of the upper weir plate (a). The crosspiece (24) and the upper weir plate (a) are superimposed on the lower weir plate (a) by engaging the horizontal protrusions (10) of (2), respectively.

Next, at the appropriate portion of the overlapping portion between the upper and lower dams (a), (a) and the crosspiece (24), the same operation is carried out as described above to move the damper connecting member (28) to the lower dam (a). After loosely fitting into the upper edge frame (1), the crosspiece (24) and the lower edge frame (2) of the upper weir plate (a), a low rust (32) is driven into the weir plate connector (28). Then, the upper and lower weir plates (a), (a) and the crosspiece (24) are integrally fastened and fixed.

Further, weir plates (a), (a)
, The ridges (22) of the other-side weir plate (a) are sequentially engaged with the grooves (23) of the one-side weir plate (a), and are joined and juxtaposed to form a dam body on both sides.

On the other hand, as shown in FIG.
Insert both ends of 4) into the through holes (2) of the piers (24) of the weir plate bodies on both sides.
7), the base end screw holes of the tightening bolts (38) are screwed into the projecting screws (35) of the separator (34) at the distal ends thereof, and the terminals (37) of the separator (34) and the tightening bolts are screwed. The dam board (24) is sandwiched by (38) to build a weir plate.

Next, a vertical sheet (b) is applied to the outer surface of the weir plate, and the horizontal sheets (c) and (c) are combined outside the vertical sheet (b). ) (C), (c)
The nut (41) is screwed in contact with the outer surface of the damper plate, and the terminal board (37) of the separator (34) and the presser washer (40) are used to hold the barge (24), the vertical plate (b), and the horizontal plate (c) of the weir plate. ),
(C) is clamped to form a formwork.

After that, concrete is poured between the barrier plates on both sides, and the concrete is solidified to construct a concrete wall (d). Then, when the formwork is dismantled, the nut (41) is unscrewed. After loosening the tightening by the presser washer (40), the side plates (c), (c), and the vertical plate (b) are sequentially removed, and the tightening bolts (38) are removed. It can be removed to dismantle the formwork.

The dam (a) and the pier (24) are
The formwork can be assembled by using it in the vertical direction instead of using it in the horizontal direction.

When the dam plate (a) and the pier (24) are used in the vertical direction, the flaps are placed sideways (c), (c).
Use only to construct the formwork.

[0028]

The concrete form dam of the present invention has the following advantages.

(1) The weir plate main body was molded from aluminum, synthetic resin, or the like, and a stainless steel plate was stretched on the surface of the weir plate main body that was to be cast into concrete to form a weir plate.
Therefore,

(A) Since the weir plate is lightweight, it can be easily transported and the like, and is convenient in handling.

(B) Since the surface of the weir plate is made of a stainless steel plate, the surface of the weir plate is not easily damaged by a vibrator or the like, does not rust, the life of the weir plate is increased, and the repeatability is improved.

(C) The cast concrete hits the stainless steel plate on the surface of the weir plate, so that when the form is dismantled, the weir plate can be easily separated from the concrete wall and the form can be easily dismantled.

(D) Since the peeling of the weir plate from the concrete wall is smooth and good, the surface finish of the concrete wall is good and beautiful.

(2) Upper and lower edge frames,
The bar at the middle part etc. is integrally molded. Therefore,

(A) The weir plate body can be easily mass-produced.

(B) Since the main body of the dam is reinforced by the edge frame, the crosspiece, etc., the main body of the dam is thin and robust.

(3) It can be easily constructed and easily manufactured at low cost.

[Brief description of the drawings]

FIG. 1 is a front view of a concrete form dam plate according to an embodiment of the present invention, in which an intermediate portion is cut away.

FIG. 2 is an upper sectional view of the same.

FIG. 3 is a plan view of the same, with an intermediate portion cut away.

FIG. 4 is an exploded perspective view of the same, with a middle portion cut away.

FIG. 5 is an oblique view of the crosspiece for the separator hole, with an intermediate portion cut away.

FIG. 6 is a perspective view of a weir plate connector and a wedge.

FIG. 7 is a side sectional view of a main part in a state where the formwork is assembled using the concrete formwork dam plate.

FIG. 8 is a partially cutaway front view of the same.

FIG. 9 is a perspective view of a part of the weir plate.

[Explanation of symbols]

 a Concrete formwork dam board b Vertical slab c Horizontal slab d Concrete wall 1 Upper rim frame 2 Lower rim frame 3 Bar 4 Bark board main body 5 Stainless steel plate 6 Horizontal groove 7 Horizontal ridge 8 Horizontal ridge 9 Horizontal ridge 10 Side ridge 11 One side small panel 12 Other side small panel 13 Side plate 14 Recessed groove 15 Upper engaging piece 16 Lower engaging piece 17 Nipping piece 18 Applying piece 19 Horizontal groove 20 Air gap 21 Horizontal groove 22 Projection 23 Groove 24 Separator hole Reference Signs List 25 lateral groove 26 lateral protrusion 27 through hole 28 dam plate connecting member 29 groove 30 high wedge 31 groove 32 low wedge 33 groove 34 separator 35 screw 36 stopper 37 terminal 38 tightening bolt 39 screw 40 presser washer 41 nut

Claims (1)

(57) [Claims] 1. An upper edge frame which is made of aluminum, synthetic resin or the like and has a horizontal groove on the upper surface of a central portion, a horizontal ridge on a lower surface, and a horizontal ridge on an upper surface and a lower surface of a central portion. A barrier plate body integrally formed with a lower edge frame provided with horizontal ribs on the upper and lower surfaces of a middle portion, a central portion, and a stainless steel plate that covers a surface of the barrier plate body which is to be cast concrete. A damper body with a stainless steel plate formed as described above, an upper engaging portion of an upper edge portion made of aluminum, synthetic resin or the like with the upper edge frame of the damper plate body, and a bar of the damper body at an intermediate portion. The lower end portion has a lower engaging portion with the lower edge frame of the weir plate body, and the lower engaging portion has a lower engaging portion between the upper engaging portion, the interposing portion and the lower engaging portion. A piece to be applied to the back surface of the weir plate body is integrally molded and placed on both ends of the weir plate body. A weir plate for a concrete formwork, characterized by comprising a small base plate to be fitted to each other.