JP2804925B2 - Lower end support device of inclined support for concrete construction - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for supporting a lower end of an inclined support for concrete construction which supports a lower end of an inclined support for supporting a wall form, a PC board and the like used for concrete construction in an oblique direction. .

[0002]

2. Description of the Related Art As shown in FIG. 5, this type of conventional lower end support device for a concrete construction tilt support is a mounting rod for a concrete construction tilt support (hereinafter simply referred to as a support) (a). The top screw of the center shaft (g) of the truncated conical terminal (f) is attached to the bolt (e) on both sides of the lower surface of the pedestal (d) with a U-shaped cross section pivotally mounted (b) with bolts and nuts (c). Screw each hole.

Then, a projecting screw (h) of the center shaft (g) of the terminal (f) is inserted into a through hole of the floor weir plate (g), and a downward projecting portion of the projecting screw (h) of the center shaft (g). The base (d) is fixed to the floor weir plate (g) by screwing the base screw hole of the tightening rod (g) to the base.

[0004] Thereafter, the lower end of the support (a) is screwed to the tip screw of the mounting rod (b), and the upper end clamp of the support (a) is fixed to the horizontal member of the wall form (not shown). Supports the wall formwork.

[0005]

In the above-mentioned conventional lower end support device of the inclined support for concrete construction,

(A) Since there is no indication of the top of the concrete floor (L), it is difficult to accurately cast concrete on the concrete floor (L).

(B) The support member at the lower end of the support (a) is integrally mounted, and the support member has a height, which hinders the assembly of the rebar (e). After the assembling is completed, the supporting member must be mounted, and the mounting is troublesome.

(C) When removing the support (a) after the concrete floor (c) has hardened, the support (a), which has a weight of 5 to 7 kg, is removed by turning it around, so that it is not possible for one worker to operate it, and two people can operate it. It has to be removed and it is hard work.

(D) Since the support (A) is removed after the concrete floor (R) is hardened, the support (A) may be broken while also acting as the support (A).

(E) The pedestal (d) with the mounting rod (b) of the lower end support member of the support (a) is a concrete floor (d)
It is uneconomic because it is buried in concrete and is a consumable.

(F) Since the support (a) is in the concrete of the concrete floor (ru), when the support (a) is turned and removed, the concrete floor (ru) located above the support (a) is removed. (A) The concrete in the part is missing and it takes time to repair it.

(G) Since a large amount of looseness is generated on the concrete floor due to the lack of the concrete in the above-mentioned portion (a), it is necessary to clean the looseness and it is troublesome.

(H) After the support (a) is removed, the hole formed in the concrete floor (l) by the support (a) and the missing portion (wa) of the concrete on the concrete floor (l) must be repaired. Therefore, it takes time and labor for many concrete materials.

(1) Since concrete adheres to the lower end screw hole of the support (a) screwed to the mounting rod (b), it takes time to remove the adhered concrete.

[0015]

SUMMARY OF THE INVENTION The present invention can be easily installed to show the top of a concrete floor after assembling the floor formwork and before assembling the rebar, and damage the concrete and the support of the concrete floor. Provided is a device for supporting a lower end of an inclined support for concrete construction, which can be easily operated quickly and easily without handling, is economical because it can be used repeatedly, and has less troublesome work to clean up and improves work efficiency. The purpose is to:

That is, the protruding screws (3) of the center shaft (2) of the frusto-conical lower terminals (1) on both sides are formed at appropriate intervals and inserted into the through holes (5) of the floor dam plate (4). A female screw is screwed into the lower protruding portion of the lever protruding screw (3), and one end screw (8) of the separator (7) is inserted into the top surface screw hole (6) of the center shaft (2) of the lower terminal (1). And screwed into the other end screw (9) of the separator (7).
0) Screw the top screw hole (12) of the central axis (11),
The projecting screws (13) of the central shaft (11) of the upper terminals (10) on both sides are respectively fitted with through holes (15) of a pedestal (14) provided with a mounting portion at the lower end of the support (a). A female screw is screwed into the upper projecting portion of the projecting screw (13) to form a lower end support device of the inclined support for concrete construction, and is easily attached after the floor form is assembled and before the reinforcing bar is assembled. In addition to being able to display the top of the floor, it can be operated quickly and easily without damaging the concrete and the support of the concrete floor, and can be used repeatedly, and is economical. For the purpose of improving work efficiency with less, the lower terminals on both sides are mounted on the floor dam plate, the separator is screwed to the lower terminals on both sides, the upper terminal is screwed on the separator, and the upper Projection of center axis of terminal It was achieved by screwing the internal thread gold upward protruding portion of the protruding screw fitted support of the lower mounting portion with pedestal bilateral holes respectively Flip.

[0017]

1 to 4 show an embodiment of the present invention. Referring to the drawings, (1) is a frusto-conical lower terminal, which is located below its central axis (2). And a screw hole (6) is provided on the top surface.
A separator (7) is provided with screws (8) and (9) at both ends, and stoppers (16) and (17) are formed at the base ends of the screws (8) and (9), respectively. (10)
Is an upper terminal having a truncated conical shape, which is provided with a screw hole (12) on the lower top surface of its central axis (11) to protrude upward.
Form 3). (18) is a separator support, which is formed in an E shape and has through holes (19) on both sides of the upper and lower pieces.

Reference numeral (14) denotes a strip-shaped pedestal having through holes (15) formed on both sides and one end protruding diagonally outward and upward (2).
0), and a U-shaped pedestal (21) of a support mounting member is provided on the tip of the protruding piece (20). Reference numeral (22) denotes a support mounting rod having a screw (23) formed at the distal end. The base is fitted into the U-shaped pedestal (21) and pivoted by the shaft rod (24).

Reference numeral (25) denotes a tightening rod, which has a screw hole (26) at the center of the base end face and a screw (27) at the distal end.
(28) is a presser washer for fitting the center hole to the tip screw (27) of the tightening rod (25); (29) is a nut screwed to the tip screw (27) of the tightening rod (25); ) Is a long nut,
(31) is a contact pipe.

(A) shows a floor formwork, and (4) shows a floor weir plate of the floor formwork (A). The holes (5) are juxtaposed. (32) is joist, (33) is pulling, (34) is pipe support,
(35) is a concrete floor constructed on a floor dam plate (4),
(36) is a reinforcing bar assembled above the floor dam plate (4).

(A) shows a tilting support for concrete construction, (37) is a main body of the support (a) which is adjustable in expansion and contraction, and a lower end of the main body (37) is provided with a female screw in the lower end. Insert the upper part of the pipe (38) and insert the stopper pin (3) into the through hole of the body (37) and the extraction pipe (38).
9) is removably inserted, and a clamp (40) is attached to the upper end of the main body (37).

(B) shows a wall form, (41) is a wall weir plate of the wall form (B), (42) is a vertical material, (43) is a horizontal material, and (44) is a horizontal material. It is a concrete wall constructed between wall dams (41) on both sides.

The operation will be described. As shown in FIG.
The floor formwork (A) is assembled with the floor weir plate (4), joist (32), large pull (33), and pipe support (34).

Next, a wall formwork (B) is assembled at a predetermined position on the floor formwork (A) by a wall dam board (41), a vertical flap (42), and a horizontal flap (43). Although not shown, the wall forms (B) on both sides are connected to each other by a fastener, and the wall forms (B) are built.

On the other hand, as shown in FIG. 2, the projecting screw (3) of the center shaft (2) of the lower terminal (1) is inserted into the through holes (5) on both sides of the floor dam plate (4) from above. The screw hole (26) of the tightening rod (25) is formed in the lower projecting portion of the projecting screw (3).
To screw the floor dam plate (4) between the lower terminal (1) and the tightening rod (25).

Next, the gap between the pair of backing pipes (31) is loosely fitted to the tightening rod (25), and
1) is put on the lower surface of the joist (32), the center hole of the presser washer (28) is fitted to the lower projecting part of the tip screw (27) of the tightening rod (25), and the nut (29) is screwed. The floor dam plate (4), the joist (32), and the contact pipe (31) are integrally tightened and fixed by the lower terminal (1) and the holding washer (28).

Thereafter, a reinforcing bar (3) is placed above the floor dam (4).
Assemble 6).

Next, after screwing one end screw (8) of the separator (7) into the screw hole (6) of the lower terminal (1) on both sides to the stopper (16), the separator is supported on the separator (7) on both sides. The through holes (19) on both sides of the fitting (18) are fitted respectively, and then the upper terminal (1) is screwed into the other end screw (9) projecting above the separator (7) on both sides.
Screw the screw hole (12) of (0) to the stopper (17).

On the other hand, the support pipe (3)
8) Support mounting rod (2) of pedestal (14)
2) Screw the screw (23).

The through holes (15) on both sides of the pedestal (14) with the support (a) are fitted to the upwardly projecting screws (13) of the center shaft (11) of the upper terminals (10) on both sides, respectively. At the upper protruding portion of the upper protruding screw (13), a female screw such as a screw hole (26) of a tightening rod (25) existing at the work site or a long nut (30) is screwed. The pedestal (14) is sandwiched between the terminal (10) and the female screw such as the tightening rod (25) and the long nut (30).

Therefore, as shown in FIG.
Clamp the side material (43) with the clamp (40) of
The main body (37) of the support (a) is appropriately expanded and contracted to fix and hold the wall form (B) in a vertical state by the support (a).

After the concrete is cast and the concrete floor (35) and the concrete wall (44) are constructed, when the formwork is dismantled, the clamp (40), the tightening rod (25), and the long nut ( If the female screw such as 30) is removed, the support (a) with the pedestal (14) can be removed.

After dismantling the formwork, the recesses at the traces of the removal of the upper terminals (10) on both sides are repaired by filling them with concrete.

In place of the upper tightening rod (25) and the long nut (30), an appropriate female screw such as a nut existing at the work site may be used.

The separator support (18) operates in the same manner even if it is formed in an appropriate shape instead of the above-mentioned shape.

The separator support (18) is
It is not always necessary and may not be used.

The pin (39) of the support (a) is withdrawn, the extraction pipe (38) is removed, and the lower end of the main body (37) of the support (a) is directly fitted into the pedestal (21), and the bolt is inserted.・ The nut may be attached.

[0038]

The lower end support device of the inclined support for concrete construction according to the present invention has the following advantages.

(1) After assembling the floor form and before assembling the rebar, the support supporting device can be set up simply by attaching the lower terminals on both sides to the floor dam plate, so that the setting can be easily and quickly performed.

(2) Assembling of the support supporting device is simple.

(3) The pedestal for supporting the lower end of the support is fixed to the lower terminal on both sides fixed to the floor dam plate and to the upper terminal on both sides via both separators and upper terminals. Support is solid.

(4) Since the upper end of the upper terminal functions as the top ruler of the concrete floor, concrete can be easily and accurately placed on the concrete floor, thereby improving workability.

(5) After the concrete floor is hardened, the lower end of the support can be removed simply by removing the female screw above the pedestal, so that the support can be removed very simply and quickly.

(6) Since the support does not enter the concrete floor, the trouble of removing the adhered concrete and the like can be omitted without damaging the support or adhering concrete to the lower end of the support.

(7) After the formwork is dismantled, it is only necessary to remove the upper terminals on both sides and to fill the recesses of the traces with concrete without damaging the concrete floor by the support.
Therefore, after the work

(A) Repair of a concrete floor is extremely simple, and many materials and labor can be saved.

(B) Since no concrete debris is generated, cleaning work is omitted and the operation is convenient.

(8) The pedestal with the support mounting portion is economical because it can be used repeatedly.

(9) It can be manufactured very simply and inexpensively.

[Brief description of the drawings]

FIG. 1 is a front sectional view of a state in which a wall form of a concrete form is supported using a lower end support device of an inclined support for concrete construction according to an embodiment of the present invention.

FIG. 2 is an enlarged front sectional view of a main part of the same.

FIG. 3 is a plan view of the lower end support device.

FIG. 4 is an exploded perspective view of the same.

FIG. 5 is a front sectional view of a main part of a lower end in a state where a wall form of a concrete form is supported using a conventional lower end support device of a tilt support for concrete construction.

[Explanation of symbols]

 Reference Signs List A floor formwork B wall formwork a slope support for concrete construction 1 lower terminal 2 center shaft 3 projecting screw 4 floor dam plate 5 through hole 6 screw hole 7 separator 8 one end screw 9 other end screw 10 upper terminal 11 center shaft 12 screw Hole 13 Protrusion screw 14 Pedestal 15 Through hole 16 Stopper 17 Stopper 18 Separator support 19 Through hole 20 Projection 21 Cradle 22 Support mounting rod 23 Screw 24 Shaft rod 25 Tightening rod 26 Screw hole 27 Screw 28 Pressing washer 29 Nut 30 Long Nut 31 Patch pipe 32 Joist 33 Exaggeration 34 Pipe support 35 Concrete floor 36 Reinforcing bar 37 Main body 38 Drain pipe 39 Stop pin 40 Clamp 41 Wall dam board 42 Vertical pile 43 Side wall 44 Concrete wall A Concrete slope support B Mounting rod C Bolt / nut D Pedestal E Bolt Terminal DOO central axis Ji projecting threaded Li floor sheathing board with null clamping rod Le concrete floor Oh rebar word missing portion

Claims (1)

(57) [Claims] 1. A protruding screw of a central shaft of a frustoconical lower terminal on both sides formed at an appropriate interval is inserted into a through hole of a floor dam plate, and a female screw is screwed into a lower protruding portion of the protruding screw. One end screw of the separator is screwed into the top screw hole of the center shaft of the lower terminal, and the top screw hole of the center shaft of the inverted truncated conical upper terminal is screwed into the other screw of the separator. The projecting screws of the center shafts of the upper terminals on both sides are fitted respectively with the through holes of both sides of the pedestal provided with the mounting part at the lower end of the inclined support, and the female screw is screwed into the projecting part of the projecting screw. Characteristic lower end support device for inclined support for concrete construction.