JPH0532593Y2 - - Google Patents

Description

[Detailed description of the invention] (Industrial application field) This invention relates to the improvement of a beam formwork support device used when constructing beams for reinforced concrete structures, mainly referred to as RC buildings. .

(Prior Art) Conventionally, in this type of beam formwork support device, tilting prevention fittings for preventing the side frames of the beam formwork from tilting are detachably attached to the upper ends of the side support members on both sides of the support body, and on the upper surface of both ends. The lower surfaces of both ends of the large tensioning material attached to it were placed in a horizontal position so that they could be attached and detached.

On the other hand, it has been proposed that the upper end of the support column supports the widthwise center portion of a horizontal rod, which has a pair of left and right vertical rods pivotably supported in the vicinity of both ends so as to be able to swing freely in the vertical direction. (For example, in 1973-
Publication No. 48572).

(Problem to be solved by the invention) However, in the former beam form support device, when constructing the beam, a beam form consisting of both side frames and a bottom frame is assembled into a predetermined shape, and the lower surface of the bottom frame of this beam form is A large joist is placed through several joists, and tilting prevention fittings are placed on the upper surface of both ends of this joist, and several thick beam horizontal end members are placed between the both sides of the beam formwork. After attaching it through the beam, assemble it so that both ends of the large tension member are supported from below by each side support member of the support body. Also, after constructing the beam, first remove the tilting prevention fittings from the large tension member, and then The main material was disassembled to be removed from the upper end of each side support member of the support body. Therefore, each time you build a beam,
Because the above-mentioned operations have to be repeated, it is extremely difficult to assemble the beam formwork when constructing the beam, and to disassemble the beam formwork after constructing the beam, which not only requires skill but also requires precision assembly. Moreover, it is very troublesome to transport the beam from one beam construction site to another, and furthermore, the strength of the support is weak, making it difficult to use the bottom and side frames of the beam formwork as a strong and stable support. I couldn't support it.

On the other hand, the latter beam formwork support device has a structure in which a pair of left and right vertical rods are pivotally supported at the upper end of the column in the vicinity of both ends, and only supports the widthwise center of the horizontal rod. Therefore, when constructing a beam, as in the former case, the beam formwork consisting of formwork plates on both left and right sides and the formwork plate on the bottom side is assembled into a predetermined shape, and then the bottom formwork of this beam formwork is assembled into a predetermined shape. A horizontal beam is placed on the bottom surface of the board through several end pieces, and a vertical beam is placed on the top surface near both ends of this horizontal beam, and several ends are placed between the formwork plates on both the left and right sides of the beam formwork. After supporting the beams through thick timbers, assemble the horizontal beams so that the central part in the width direction is supported from below by the pillars. Also, after constructing the beam, first remove each vertical beam from the horizontal beams, and then remove the vertical beams from the horizontal beams. It was disassembled to remove the horizontal rod from the support. Therefore, each time a beam is constructed, the above-mentioned operations must be repeated, making it extremely difficult to assemble the beam formwork when constructing the beam, and to disassemble the beam formwork after constructing the beam. Not only do they require additional support, they cannot be assembled accurately, and transporting them from one beam construction site to another is extremely troublesome. It was extremely difficult to level the board.

Therefore, this invention was devised to solve the above-mentioned problems, and it is extremely easy for anyone to assemble and disassemble beam formwork during and after beam construction without requiring any skill. In addition, the bottom frame of the beam formwork can be leveled very easily, and the bottom frame and side frames of the beam formwork can be aligned with the center support member and each side support member of the support body. To provide a beam formwork support device that can strongly and stably support members and can be easily transported from a beam construction site to another beam construction site.

(Means for Solving the Problems) In order to achieve the above-mentioned purpose, this invention has a jack base attached to the upper and lower ends so that the height can be finely adjusted, and casters for movement are attached to the side of the lower end. A support body is formed of side support members on both sides whose height can be adjusted, and a center support member in the middle where the bottom frame of the beam form is horizontally attached to the support plate at the upper end. At both ends of the upper end support plate of the member, a pair of left and right large tension members, each of which has a side frame of the beam formwork and a tilt prevention fitting for preventing the side frame tilting vertically attached to the upper surface thereof, are attached, with the tip end of each of the above-mentioned It is pivotally supported on the upper end of the side support member so that it can swing freely in the vertical direction so as to be placed in a horizontal state.

(Function) This invention is achieved by the technical means mentioned above.
When constructing a beam, the bottom frame of the beam formwork at the upper end of the center support member of the support body is leveled by raising the lower end of each side support member using the height adjustment means on the lower end side of each side support member of the support body. After installing each side support member in a vertical position, swing each main lumber upward and adjust the height using the height adjustment means on the upper end of each side support member so that both sides of the beam formwork and the tilting prevention fittings are installed in a vertical position. The upper ends of the side support members are made higher, and each large tension member is placed horizontally on the upper end of each side support member. On the other hand, after constructing the beam, the upper end side of each side supporting member is adjusted using the height adjusting means on the upper end side of each side supporting member of the support body so that both side frames of the beam formwork and the tilt prevention metal fittings are in a horizontal state. After lowering the height and swinging each large tension member downward, the lower end side of each side supporting member is lowered by the height adjusting means on the lower end side of each side supporting member.

In addition, after adjusting the height of the bottom frame of the beam formwork with the support at the upper end of the center support member in the middle of the support, the height of the bottom frame of the beam formwork can be fine-tuned with the jack bases at the upper and lower ends of the side support members on both sides.

Furthermore, anyone can extremely easily disassemble the beam after constructing it, and the beam can be easily moved even in the assembled state.

(Example) Hereinafter, an example of this invention will be described based on the drawings.

In the figure, reference numeral 1 denotes a support body, and this support body 1 has height-adjustable side support members 2 on both sides, a center support member 3 in the middle, a horizontal horizontal pipe 4, and an oblique reinforcing pipe 5. They are formed so as to be connected at appropriate intervals via the.

As shown in FIGS. 1 and 2, each of the side support members 2 includes a large side pipe 7 having a height adjustment hole 6 bored at its upper end, and a slightly smaller diameter and shorter side pipe 7 than the large side pipe 7. It also consists of a side small pipe 9 in which several height adjustment holes 8 are bored at appropriate intervals in the vertical and longitudinal directions, and the side small pipe 9 is connected to the height adjustment hole 6 from the upper end of the side large pipe 7. A height adjustment pin 10 is inserted into one of the height adjustment holes 8 so that the height can be adjusted freely. A jack base 12 is attached to the upper end of this small side pipe 9, and the jack base 12 is provided with a receiving plate 11 having an upwardly facing U-shape on the side surface, and the height can be finely adjusted. A jack base 14 provided with a height is attached so as to be finely adjustable in height. Furthermore, casters 15 for movement are attached to the side surface of the lower end of the large side pipe 7 via attachment pieces 16 so that they can be positioned below the ground plate 13 and freely touch the ground during movement.

Further, the center support member 3 has two vertical pipes 17 connected to the horizontal pipe 4 and the reinforcing pipe 5 of the side support member 2, respectively, arranged at appropriate intervals, and between the vertical pipes 17. Three horizontal pipes 18 are arranged at appropriate intervals, and each vertical pipe 1
A horizontal support plate 19 is provided at the upper end of the support plate 7 .

A plurality of supports 1 formed as described above are arranged at appropriate intervals, and the bottom frame B of the beam form A is placed between the upper surfaces of the support plates 19 at the upper end of the center support member 3 of each of the supports 1. The two joists 20 on the bottom are installed in a horizontal state through the bottom reinforcing members 21, respectively, and the upper end support plate 19 of the vertical pipe 17 of the center support member 3 of each support 1 is installed at both ends. A pair of left and right large tension members 2 to which a side frame C of a beam formwork A and a tilting prevention fitting 22 for preventing this side frame C from tilting are attached.
3 and 24 are supported by a shaft 26 so as to be swingable in the vertical direction so that their tips are horizontally placed on the upper end receiving plate 11 of each side support member 2.

Therefore, the tilting prevention metal fitting 22
A main pipe 28 is provided upright on the upper surface of the metal fitting main body 27, which is formed into a downward U-shaped side surface in correspondence with the main pipes 3 and 24, and a plate 29 with a lower downward U-shaped side surface is provided at the outer end of the metal fitting main body 27. is provided protrudingly, and the upper surface of the outer end of this plate 29 and the main pipe 2
A reinforcing member 30 is formed obliquely between the outer surface of the substantially central portion in the vertical direction of the reinforcing member 8 . Then, the metal fitting main body 27 and the plate 29 are placed on the upper surface of the outer end of each of the large tension members 23 and 24, and each mounting hole is attached to the central part of the front and rear surfaces of the metal fitting main body 27 and each of the large tension members 23 and 24. Insert the locking pin 31 into the elongated hole 25, and use the beam width adjustment bolt 34 at the outer end of each large tension member 23, 24 so that the width between both sides C of the beam formwork A can be adjusted freely. installed.

Further, the side frame C of the beam form A is arranged between the inner surfaces of the main pipes 28 of the respective tilting prevention fittings 22 facing each other in the front-rear direction of the respective supports 1 arranged at appropriate intervals.
Side reinforcing material 3 is attached to the two beam horizontal end thicks 32 on the inside surface.
3 are installed in a vertical state.

In addition, the side support member 2 has a large side pipe 7 with a height adjustment hole 6 drilled in its upper end, and a small side pipe 7 with several height adjustment holes 8 drilled at appropriate intervals in the vertical and longitudinal directions. It consists of a pipe 9, and
From the upper end of the side large pipe 7 to the side small pipe 9
However, although it is explained and illustrated that the height adjustment pin 10 is inserted into either the height adjustment hole 6 or each height adjustment hole 8 to freely adjust the height, the present invention is not limited to this in any way. There isn't. That is, as shown in FIG. 3, the vicinity of the lower end of the large side pipe 7 is divided,
A height adjustment hole 35 is bored at the lower end of the large side pipe 7 on the upper end side, and the large side pipe 7 on the lower end side
Height adjustment holes 36 are bored at appropriate intervals in the vertical and longitudinal directions between the lower end of the large side pipe 7 on the upper end side and the large side pipe 7 on the lower end side. A drilled height adjustment pipe (not shown) is inserted, and the height adjustment holes 35 and 36 of each side large pipe 7 on the upper and lower ends are connected to one of the height adjustment holes of this height adjustment pipe. The height may be adjusted freely by inserting a height adjustment pin 37 into the height adjustment pin 37. According to this, the height of the side support member 2 can be adjusted not only on the upper end side of the large side pipe 7 but also on the lower end side of the large side pipe 7, making it easier to adjust the height of the side support member 2. .

Further, although the caster 15 is described and illustrated as being attached to the side surface of the lower end of the large side pipe 7 via the attachment piece 16, the present invention is not limited to this.
As shown in FIG. 3, it may be detachably attached to a connecting fitting 38 provided on the side large pipe 7 on the lower end side of the side support member 2 via a wedge 39. According to this, since it can be removed when adjusting the height of the side support member 2, it is not only easier to adjust the height of the side support member 2, but also convenient when replacing the caster 15.

In the figure, reference numeral 40 is an extensible bracket on which a scaffold board is placed, reference numeral 41 is a connecting member installed between the large side pipes 7 on the lower end side, and reference numeral 42 is a concrete plate.

(Effect of the invention) Since this invention is configured as described above, when constructing the beam, first the side size of each side support member 2 of the support body 1 is The center support member 3 of the support body 1 is raised by height adjustment means such as the height adjustment holes 35 and 36 on the lower end side of the pipe 7, the height adjustment pin 37, and the jack base 14. The bottom frame B of the beam formwork A at the upper end is installed in a horizontal state, and then each of the large tension members 23 and 24 is swung upward to form both side frames C of the beam formwork A.
The height adjustment hole 6 on the upper end side of each side support member 2,
8. Raise the upper end side of each side support member 2 using height adjustment means such as height adjustment pin 10 and jack base 12, and place each large tension member 23, 24 on the upper end of each side support member 2 in a horizontal state. Then, concrete is poured into the beam formwork A to construct the beam D.
On the other hand, after constructing the beam, as shown by the two-dot chain lines in FIGS.
Height adjustment hole 6 on the upper end side of each side support member 2,
8. Lower the upper end side of each side support member 2 using height adjustment means such as height adjustment pin 10 and jack base 12, and swing each large tension member 23, 24 downward;
Next, the height adjustment holes 35 and 36 on the lower end side of the side large pipe 7 of each side support member 2, and the height adjustment pin 3
7. Lower the lower end of each side support member 2 using height adjustment means such as the jack base 14, and ground the caster 15. That is, by simply adjusting the height of each side support member 2 of the support body 1 during and after construction of the beam, anyone can assemble and disassemble the beam formwork A extremely easily and accurately without requiring any skill. It can be done.

Moreover, the support body 1 is formed of the side support members 2 on both sides and the center support member 3 in the middle where the bottom frame B of the beam form A is horizontally attached to the support plate 19 at the upper end. At both ends of the upper end support plate 19 of the center support member 3 of No. 1, a pair of left and right large tension members 23 and 24, each of which has the side frame C of the beam form A and the tilt prevention fittings 22 vertically attached to the upper surface thereof, are attached in the vertical direction. Since the strength of the center support member 3 of the support body 1 can be significantly increased by pivotally supporting the support body 1 so that the bottom frame B and the side frame C of the beam form A can swing freely, The member 3 and each side support member 2 can be strongly and stably supported.

In addition, the height-adjustable side support members 2 on both sides have jack bases 12 and 14 attached to the upper and lower ends for fine height adjustment, and casters 15 for movement are attached to the side surfaces of the lower end, and a support plate 19 at the upper end. The bottom frame B of the beam formwork A forms a support body 1 consisting of a center support member 3 in the middle attached horizontally, and on both ends of the upper end support plate 19 of the center support member 3 of this support body 1, A side frame C of the beam formwork A and a tilting prevention metal fitting 2 for preventing this side frame C from tilting are attached on the top surface.
A pair of left and right large tension members 23, each of which is vertically attached to the other side support members 2, are pivoted so as to be swingable in the vertical direction so that their tips are horizontally placed on the upper ends of each of the side support members 2. After adjusting the height of the bottom frame B of the beam form A with the support plate 19 at the upper end of the center support member 3 in the middle of the support body 1, the height of the bottom frame B of the beam form A is adjusted using the jack bases 12 and 14 at the upper and lower ends of the side support members 2 on both sides. A
Since the height of the bottom frame B of the beam formwork A can be finely adjusted, leveling of the bottom frame B of the beam formwork A can be made extremely easy.

Furthermore, as mentioned above, anyone can very easily disassemble the beam after construction without requiring any skill, and the height can be finely adjusted using the jack bases 12 and 14 at the upper and lower ends of the side support members 2 on both sides of the support 1. By attaching each side support member 2 freely, and by attaching moving casters 15 to the side surface of the lower end of each side support member 2, it can be easily moved even in the assembled state. It is extremely easy to transport to the construction site.

[Brief explanation of the drawing]

The drawing shows one embodiment of this invention.
The figure is a front view when the beam is constructed, FIG. 2 is a front view after the beam is constructed, and FIG. 3 is a front view showing another embodiment of the side support member. 1...Support body, 2...Side support member, 3...
Center support member, 4...Horizontal pipe, 5...Reinforcement pipe, 6...Height adjustment hole, 7...Side large pipe, 8...Height adjustment hole, 9...Side small pipe,
10... Height adjustment pin, 11... Receiving plate, 12...
Jacket base, 13...Grounding plate, 14...Jacket base, 15...Casters, 16...Mounting piece, 17...Vertical pipe, 18...Horizontal pipe, 19
... Support plate, 20 ... Joist material, 21 ... Bottom reinforcing material, 22 ... Tilt prevention fittings, 23 ... Large tension material, 2
4...Large lumber, 25...Mounting long hole, 26...Shaft rod, 27...Metal fitting body, 28...Main pipe, 29
... Plate, 30 ... Reinforcement member, 31 ... Locking pin, 32 ... Beam side end thickness, 33 ... Side reinforcement member,
34...Beam width adjustment bolt, 35...Height adjustment hole,
36...Height adjustment hole, 37...Height adjustment pin, 3
8... Connecting metal fittings, 39... Wedge, 40... Telescopic bracket, 41... Connecting material, 42... Concrete plate, A... Beam formwork, B... Bottom frame, C... Side frame, D... ...beam.

Claims (1)

[Scope of utility model registration request] A jack base is attached to the upper and lower ends for fine height adjustment, and side support members on both sides that can be adjusted in height have casters attached to the sides of the lower end for movement, and the bottom frame of the beam form is attached to the support plate at the upper end. A support body is formed with a center support member in the middle that is installed horizontally, and a side frame of the beam form on the top surface is attached to both ends of the upper end support plate of the center support member of this support body, and a side frame for preventing the side frame from tilting. A pair of left and right large tension members, each of which is vertically attached to the anti-tilt fittings thereof, are pivotally supported so as to be swingable in the vertical direction so that their tips are placed horizontally on the upper ends of each of the side support members. A beam formwork support device featuring: