JP3474322B2 - Forming device of U-shaped groove with lifting inverted hole - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a U-shaped groove forming apparatus having lifting inverted holes formed on both side walls. 2. Description of the Related Art Conventionally, a U-shaped groove in which a lifting inversion hole is formed at a substantially intermediate position on both side walls of a U-shaped groove (substantially the center of gravity of the U-shaped groove) is generally known. Here, the U-shaped groove is heavy and has a weight of 1 ton or more, and it is particularly required to safely remove the mold from the formwork and to lay the U-shaped groove safely and promptly at a predetermined location. It had been. The inventor of the present invention or his father, Shoji Takami, is capable of safely removing a large and heavy U-shaped groove or safely and quickly laying the U-shaped groove. After repeated development and experimentation, the jig for forming the lifting and reversing hole can be easily installed in the form at the same time as the mold is installed so that a hole for lifting and reversing can be finally formed on the side of the U-shaped groove. The lifting reversing hole can be diverted to easily remove the mold, and when the U-shaped groove is laid, the lifting reversing hole can be used very simply and quickly.
Many inventions have been produced with the effect of being able to be laid safely. Here, the reason why the U-shaped groove must be lifted and turned upside down is as follows. First, when the U-shaped groove is removed from the mold, the U-shaped groove is in a state opposite to that at the time of use, that is, a reverse U-shaped groove. It is taken out while being laid down in the shape of a letter. Then, a generally manufactured U-shaped groove is stored in a storage place in this inverted U-shaped state. This is because, in this state, the storage stability is higher, and the storage efficiency is remarkably excellent since the storage is performed in a plurality of stages. [0005] Therefore, the U-shaped groove is usually placed in an inverted U-shape when the U-shaped groove is transported to the laying site and when the U-shaped groove is temporarily placed on the laying site. However, the U
When laying a U-shaped groove, it must be raised and installed in a U-shape. Conventionally, many workers raise the U-shaped groove from a reverse U-shape to a U-shape over a long time, and It takes a long time to carry it to the place where it is to be laid, and it takes a long time to fine-tune the laying (it is necessary to connect multiple U-shaped grooves instead of laying only one U-shaped groove, so fine adjustment of the connection is required ) And lay a U-shaped groove. Here, since the present inventor and his father have invented the above-described innovative U-shaped groove with a reversing lifting hole and a formwork device therefor, many concrete contractors or construction companies have taken a breakthrough. In addition to shortening the working time, the number of accidents related to laying work etc. was dramatically reduced. That is, if a member for forming a lifting inversion hole is attached to a mold for manufacturing a U-shaped groove in advance, and concrete is filled and solidified in that state,
This is because a U-shaped groove with a lifting reversing hole can be automatically manufactured, and the hole can be used for removing the mold and performing the laying operation safely, quickly, and at extremely low cost. Therefore, the total number of patents of the present inventor and Shoji Takami in this field has exceeded 100. Here, a feature of these inventions is that the lifting inverted hole forming member is formed of metal first. A U-shaped groove weighing as much as one ton is lifted at two locations and inverted. This is because if the material is not rigid such as metal, it will be damaged. [0008] Next, the anchor portion is formed in a disk shape and is attached to a substantially middle position of the hole forming portion in the shape of a metal pipe. If the anchor portion is not configured as extending outward as described above, the lifting inversion hole forming member is buried in concrete and shipped as a U-shaped groove product, and during the lifting and inversion operation, the lifting inversion hole forming member is This is because there was a risk that the lifting and reversing tool inserted into the hole would pull and remove the tool. [0010] Further, there has been a demand for the above-mentioned jig for forming a lifting inverted hole as described below. That is, it is a support rod for holding the lifting inversion hole forming member in the mold. Conventionally, the support rod is formed separately from the mold, and when the mold is released from the mold after solidification of the concrete, the support rod is completely separated from the mold and is scattered at the site or the like. When using the formwork of
Since the support rod cannot be used, the formwork cannot be assembled,
Therefore, there is a problem that the operation of forming the U-shaped groove is delayed. [0010] At this time, there have been many cases in which only the support rod is urgently purchased in the past, but the price of the support rod is surprisingly high, and it is extremely uneconomical to purchase it every time it is lost. This is even more so under such economic conditions. Here, it has also been proposed to connect this support rod to the formwork with a chain or the like.However, at the time of assembling the formwork, this chain becomes a hindrance, and connecting with a chain is cost-effective. There was nothing. Thus, the present invention has been made in order to solve the above-mentioned problems, and is simply attached to a mold with a simple structure without connecting the support rods constituting the lifting inverted hole forming member with a chain or the like. It is an object of the present invention to provide a U-shaped grooved form device with a lifting inverted hole which can be placed at a low cost. According to the present invention, there is provided a lifting device according to the present invention.
Mold apparatus of rolling slotted U-shaped groove is configured as follows
You. That is, an inner mold having a substantially rectangular mountain shape,
With a pair of outer formwork installed at a predetermined interval,
Insert the support rods into the inner mold side from the outside of the pair of outer molds.
The inserted support rod has a metal pipe-shaped hole
Attached at a substantially right angle to the middle part of the outer periphery of the forming part and the hole forming part
Into the anchor portion protruding into a disc shape and the hole forming portion
Lifting inverted hole forming jig having a combined cap member
The hole forming part is fitted, and a
After the concrete is filled and the concrete solidifies, the form
Mold that can be formed to create a U-shaped groove with a reversing hole
In the frame device, the anchor portion has a plurality of through holes.
Board and the outer peripheral edge of the board are alternately folded
The cap member is formed by forming a bent piece.
Is composed of a plastic member, one end of which is closed,
The end is formed in an opened substantially cylindrical shape, and
The inner diameter in the longitudinal direction is adjusted so that the fitting width to the hole forming part can be adjusted.
All the holes have the same outer diameter as the hole forming portion,
The outside of the formwork is cut off by a pair of legs and a base straddling the legs.
A support base having a substantially U-shaped surface and attached to the base surface
A support rod holder made of a nut member is attached,
The support rod has a male screw screwed to the nut member at the base end.
And several ridges on the tip side from the middle in the longitudinal direction.
When screwed into the nut member, the tip side of the support rod
Does not protrude from inside the support base having a substantially U-shaped cross section.
A male screw portion formed at the position is provided, and the male screw portion and the male screw portion are provided.
Do not screw into the nut member between the thread and
It is characterized by being formed as a screw part
You. According to the present invention, the support rod constituting the lifting reversing hole forming member is provided with a male screw portion screwed to the nut member at the base end of the support rod, and a longitudinal intermediate portion of the support rod. A male thread portion consisting of several peaks was provided at a more distal end position. Therefore, when the mold is removed from the mold after the U-shaped groove is formed, the support bar is not pulled out to the end, and the male screw portion consisting of several threads is provided at a position on the distal end side from the middle portion in the longitudinal direction of the support bar. , There is no danger of losing the support rod. In the drawings, reference numeral 1 indicates an inner mold. The inner mold 1 is formed in a substantially rectangular mountain shape as shown in the figure. Next, reference numeral 2 indicates an outer mold frame. The outer mold frame 2 is installed in a pair at a predetermined distance from the inner mold frame 1 and has a substantially flat plate shape, and is configured such that its upper end is bent inward. Next, reference numeral 3 denotes a lifting inverted hole forming jig. The lifting inversion hole forming jig 3 has a hole forming portion 4 formed of a metal pipe, and a disk-shaped portion attached to a substantially middle position in the outer peripheral longitudinal direction of the hole forming portion 4 so as to project in a substantially right angle direction. And an anchor portion 5. As can be understood from FIG. 3, the anchor portion 5 has a plurality of through holes 13... Formed on the substrate 6 and the outer peripheral end of the anchor portion 5 is alternately bent. 7 are formed. Reference numeral 8 indicates a cap member. The cap member 8 is formed of a flexible member such as a plastic member, and has a substantially cylindrical shape with one end closed and the other end opened. Here, the cap member 8
Is an inner diameter to which the outer shape of the hole forming portion 4 fits. The inner diameter of the cap member 8 in the longitudinal direction is all the same as the inner diameter so that the width of the fitting can be adjusted. Here, a method of manufacturing a U-shaped groove according to the present invention will be described. First, as shown in FIGS. 2 and 4, holes 10 are formed at predetermined positions of the pair of outer mold frames 2 and 2 (locations corresponding to the positions of the centers of gravity of the U-shaped grooves to be manufactured). The support rod holders 11, 11 are fixed to the outside of the outer mold frames 2, 2 so as to communicate with the support 10, 10. Here, as can be understood from FIGS. 1, 3 and 4, the support rod holder 11 has a pair of legs 21, 21.
A support base 23 having a substantially U-shaped cross section is provided by a base surface 22 extending over the legs 21 and 21. A nut member 24 is mounted on the support base 23, and a female screw 25 of the nut member 24 is provided. A hole 26 having the same diameter as that of is formed on the base surface 22 (see FIG. 1). Therefore, the support rod holder 11 is fixed to the outer frame 2 so that the hole 26 and the hole 10 communicate with each other (see FIG. 2). Thus, the support rod holder 11
It is assumed that the outer mold frame 2 to which is fixed is formed in advance. Next, the support rods 9 and 9 are passed through the female screw 25 and the holes 26 and 26 of the nut member 24 and the holes 10 and 10 of the outer mold frames 2 and 2 of the support rod holders 11 and 11.
The support rods 9, 9 are projected into the formwork while the male thread portion 28 of the support rod 9 is screwed into 5, 25. Further, as can be understood from FIG. 2, the lifting inversion forming jigs 3, 3 are respectively inserted from the distal ends of the support rods 9, 9 projecting into the mold. That is, the lifting inversion forming jigs 3 into which the cap members 8 are respectively fitted are inserted into the support rods 9. Then, outer formwork 2,
2 is installed at a predetermined position, that is, both outer mold frames 2 and 2 are erected at a predetermined distance from the inner mold frame 1. As shown in FIG. 5, the cap members 8, 8 fitted into one end (inner frame 1 side) of the lifting inverting hole forming jigs 3, 3, for example, together with the erecting operation.
The closing part 15 is pressed against the inner mold 1, and the closing part 15 is brought into close contact with, for example, the side surface of the inner mold 1 to install the form member. In addition, as shown in FIG. 4, if the lifting inversion hole forming jigs 3 are set apart from the side surface of the inner mold frame 1,
No lifting hole is exposed inside the completed U-shaped groove. Here, since the lifting inversion hole forming jig 3 and the flexible cap member 8 have a fitting width corresponding to the longitudinal width of the cap member 8, the side wall of the U-shaped groove to be manufactured is provided. Even if the thickness is different, it can sufficiently cope. From this state, concrete is filled and cured for a predetermined time to solidify the concrete. The demolding operation after the concrete is solidified is almost the same as in the conventional example. The pair of support rods 9, 9 are turned to rotate the female screws 25, 25 of the support rod holders 11, 11, and the support rod 9,
While releasing the screwed state with the male screw portion 28 of FIG.
From this state, the pair of outer mold frames 2 and 2 are expanded outward, and the pair of outer mold frames 2 and 2 are released. After the outer mold frames 2 and 2 are released, the lifting rod of the lifting tool is inserted into the lifting inverted hole formed outside the U-shaped groove, and the lifting tool can be easily removed by lifting upward. Is done. In this case, the support rod 9 has a structure shown in FIG.
As can be understood from FIG. 2, a male screw portion 28 which is screwed to the female screw 25 of the nut member 24 is provided at the base end portion 27, and the nut is also provided at the distal end side of the intermediate portion of the support rod 9 slightly in the longitudinal direction. An external thread portion 29 having several threads (two threads in FIG. 1) to be screwed into the internal thread 25 of the member 24 is provided. Therefore, even if the support rod 9 is pulled out while being rotated and pulled out from the solidified concrete, as shown in FIG. 1, the female thread 25 of the nut member 24 has an external thread portion 29 consisting of several threads of the support rod 9. If you screw in
The support rod 9 can be fixed to the outer frame without projecting the tip side of the support rod 9. Therefore, the support rod 9 is not lost. The present invention has the above configuration. And
ADVANTAGE OF THE INVENTION According to the form device of the U-shaped groove with a lifting inversion hole which concerns on this invention, it can attach easily to a form with a simple structure, without connecting the support rod which comprises a lifting inversion hole formation member with a chain etc. It has an excellent effect that it can be made and the cost for its attachment can be reduced.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a configuration explanatory diagram illustrating the configuration of a support rod and a support rod holder. FIG. 2 is a schematic explanatory view (part 1) showing a use state of a form device of a U-shaped groove with a through-type lifting inversion hole of the present invention. FIG. 3 is an explanatory diagram illustrating a configuration of a lifting inversion hole forming member. FIG. 4 is a schematic explanatory view (part 2) illustrating a use state of a form device of a U-shaped groove with a through-type lifting inversion hole according to the present invention. FIG. 5 is a schematic view showing a fitted state of a support rod, a lifting inversion hole forming jig, and a cap member. [Description of Signs] 1 inner mold 2 outer mold 3 lifting inverted hole forming jig 4 hole forming portion 5 anchor portion 6 substrate 7 bent piece 8 cap member 9 support rod 10 hole 11 support rod holder 13 through hole 15 Closed portion 21 Leg 22 Base surface 23 Support base 24 Nut member 25 Nut member internal thread 26 Hole 27 Base end portion 28 Male thread portion 29 Male thread portion

Claims (1)

(57) [Claims] An inner mold (1) having a substantially rectangular mountain shape, and said inner mold
A pair of outer molds (2,
2) and Support rods from outside the pair of outer mold frames (2, 2)
(9, 9) is inserted into the inner mold (1) side, The inserted support rod (9) has a metal pipe-shaped hole.
A substantially straight line is located at a substantially intermediate position on the outer periphery of the forming portion (4) and the hole forming portion (4).
Anchor section protruding into a disk attached to a corner (5)
WhenThe cap member (8) fitted in the hole forming part (4)
WhenThe hole forming portion of the lifting inverted hole forming jig (3) having a hole
(4) is fitted, Concrete between the inner formwork (1) and the outer formwork (2, 2)
After the concrete is solidified, the formwork is removed and suspended.
Forming equipment that can create U-shaped grooves with raised inversion holes
AndThe anchor part (5) has a plurality of through holes (13) formed therein.
Substrate (6) and the outer peripheral end of the substrate (6).
A bent piece (7) bent differently is formed, The cap member (8) is made of a plastic member,
One end is closed and the other end is opened and has a substantially cylindrical shape.
And the fitting width to the hole forming portion (4) is adjusted.
The hole forming portion (4) has a longitudinal inner diameter that can be adjusted.
Of the outside diameter of Outside the outer frame (2), a pair of legs (21, 21)
And a base surface (22) straddling the legs (21, 21).
A substantially U-shaped support base (23) and the base surface (22)
Support rod holding consisting of attached nut member (24)
The tool (11) is attached, The support rod (9) has a nut portion at a base end (27).
Having an external thread portion (28) screwed to the material (24)
In addition, a plurality of peaks are provided on the tip side from the middle portion in the longitudinal direction.
Screw on the cutting member (24)When joining, the tip side of the support rod (9)
Protrudes from inside the support base (23) having a substantially U-shaped cross section.
Male screw part (29) formed at a position where it does not Is provided, The space between the male screw part (28) and the male screw part (29)
Use a non-threaded part that does not screw into the nut member (24)
Formed A formwork device for a U-shaped groove with a lifting reversal hole.