JP2005262541A - Form support device of fixture for forming connection hole and hoisting reversing hole - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a form support device of a fixture for forming a connection hole and a hoisting reversing hole capable of corresponding to all of systems even if the support system of a hole forming fixture and a hole forming device is any one of a bolt system, an one-touch system and a magnet system and capable of using a conventional form for forming a concrete product without wasting the same. <P>SOLUTION: The form support device of the fixture for forming the connection hole and the hoisting reversing hole has the first and second mounting parts, which are fitted in the through-holes bored in both lateral forms of the form for forming the concrete product assembled into an almost box shape from the outside to be fixed to the lateral forms, and also has a nut-like member and a holding member. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

The present invention relates to a lifting hole provided at the center of gravity of both side walls such as a U-shaped groove, or a connecting hole for forming a connecting hole for connecting a concrete product provided on both side walls on both sides in the longitudinal direction of a culvert type concrete product. The present invention relates to a connecting hole attached to the concrete product forming mold for supporting the reversing hole forming jig on the concrete product mold, and a mold supporting device for the lifting reversing hole forming jig.

  In recent years, for example, a lifting reversal hole for lifting and reversing has been drilled at the center of gravity of both side walls of a concrete product such as a U-shaped groove, and a lifting reversal rod has been inserted into the lifting reversal hole for lifting and transporting and reversing. A U-shaped groove is laid on site to quickly form drainage grooves.

  In addition, when connecting a culvert type concrete product or the like in the longitudinal direction and forming a drainage groove, connection holes for connection are provided at both ends in the longitudinal direction of the culvert type concrete product, and a connection plate is installed between the connection holes. Then, the undercarriage type concrete product was connected in the longitudinal direction by inserting a fixing rod or the like into the connecting hole.

However, in order to form the lifting reversal hole or the connecting hole, the lifting reversing hole forming or connecting hole forming jig 35 is held on the both side molds, and the hole forming jig has a cylindrical pipe. A hole-forming tool in the form of a hole must be mounted, and therefore a form support device 33 of a lifting reversal hole forming jig or a connecting hole forming jig 35 is attached to the both-side molds 1 and 1 in advance. There is a need.
As can be understood from FIGS. 4 to 6, there are several types of lifting reversal hole forming jigs or connecting hole forming jigs 35 supported by the formwork support device 33.

  The first type is a bolt type (see FIG. 4). As an example, a through-hole 30 is formed in the both-side molds 1, 1 and outside the both-side molds 1, 1. A holding member 31 having a substantially U-shaped cross section is fixed so as to cover the through hole 30, and a nut-like screwing member 32 having a female screw portion is attached on the holding member 31, and the members are configured by these members. The support device 33 of the lifting reversal hole forming jig 35 is fixed to the both-side molds 1 and 1.

  Then, a support rod 34 which is a long bolt-shaped hole forming jig is projected from the outside to the inside of the side molds 1 and 1 while being screwed into the female screw of the screwing member 32.

  Next, a hole forming tool 37 (anchor member) having a substantially cylindrical pipe shape is attached to the support rod 34 projected into the side molds 1 and 1.

  After the concrete is placed and solidified in the mold frame assembled as described above, the bolt-shaped support bar 34 is screwed out of the side mold frame 1 and then the side mold frame 1, 1 is expanded and demolded.

  The concrete product with a lifting reversal hole or a connection hole will be formed by the above.

  Next, as shown in FIG. 5, a magnet type hole forming jig 35 has been proposed.

  The reason why the magnet type was proposed is because the number of types of U-grooves or culvert type concrete products in recent years has increased dramatically in order to increase the added value and functionality of the concrete products.

  That is, until now, most of the concrete product manufacturing companies have adopted the bolt type lifting reversal hole forming jig 35 or the connecting hole forming jig 35.

  However, with such a bolt-type lifting reversal hole forming jig or connecting hole forming jig 35, for example, an impact wrench or the like is used to twist and attach or remove it by twisting at a manufacturing factory. This is because the concrete product manufacturing work efficiency was extremely deteriorated.

  The magnet type solves the problem of twisting work.

  As for the magnet type hole forming jig 35, a magnet is always used as its main body.

  As is understood from FIG. 5, a suction cup body 36 made of a substantially disk-shaped magnet is attached to the inside of the side molds 1 and 1, and a hole forming tool for a metal pipe member made of a magnetic substance is attached to the suction cup body 36. 37 is attached by suction.

  Thus, with this magnet type, the hole forming tool 35 can be attached with one touch and powerfully.

  Therefore, the conventional bolt-type lifting reversal hole forming jig or connection is performed at the concrete company that manufactures the above-mentioned concrete products on the daily basis, such as forming and releasing the mold (assembling the mold and releasing the mold). The bolts and nuts are not attached and detached by the hole forming jig 35, the magnet type lifting reversal hole forming jig or the connecting hole forming jig 35 is attached to the side mold 1, and the magnet type lifting reversing hole is attached. A hole forming tool 37 made of a metal pipe was attached to the forming jig or the connecting hole forming jig 35, so that the hole forming tool 37 did not fall even when concrete was thrown in, and the work efficiency in the factory was greatly increased.

  However, in this magnet type, as can be understood from FIG. 5, a suction cup body 36 is always installed inside the lateral mold 1, and a hole forming tool 37 made of a metal pipe is attached to the suction cup body 36. The side wall in the vicinity of the hole of the manufactured concrete product is recessed by the amount of the sucker body 36, and there is a problem that a rack enters the recessed portion when the concrete product is lifted.

  Further, the magnet type has a problem that the cost is increased due to the use of the suction cup 36.

  Therefore, a one-touch type lifting reversal hole forming jig or connecting hole forming jig 35 has been proposed.

  As understood from FIG. 6, the one-touch type has a through-hole 30 formed in the both-side molds 1, 1 and covers the through-hole 30 outside the both-side molds 1, 1. A holding member 31 having a substantially U-shaped cross section is fixed, and a nut-like screwing member 32 having a female screw portion is attached to the holding member 31 to form a formwork support device 33. It is almost the same as the bolt type and magnet type structure.

  However, the one-touch type lifting reversal hole forming jig or the connecting hole forming jig 35 is not the bolt-shaped support rod 34 as described above. That is, as can be understood from FIG. 6, what projects into the side molds 1 and 1 is a short one-touch locking support projection 38 formed of, for example, a metal member.

  Thus, the operator inserts, for example, a pipe-shaped hole forming tool 37 made of a synthetic resin member into the short one-touch locking support projection 38.

  That is, when manufacturing a large number of U-shaped grooves or culvert type concrete products, the manufacturing time is extremely long, and at the manufacturing site, an attempt is made to shorten the working time as much as possible.

For this reason, the use of bolt-shaped hole forming tool support rods that require time and troublesome twisting work like the bolt type described above is being avoided.
This is because not only the twisting work at the time of assembling the mold, but also at the time of removing the mold, the bolt-shaped hole forming tool support bar must be screwed off one by one.

  Therefore, with the one-touch type support member as described above, the work can be speeded up and a product that is inexpensive in terms of cost can be provided.

  However, since it is simply fitted in the one-touch type, it cannot be said that there is no possibility that the hole forming tool 37 attached during the concrete placement is removed from the screw type bolt type or magnet type.

As described above, there are various means for supporting the hole forming jig 35 and the hole forming tool 37, but there are various measures in the construction factory and by each concrete manufacturer. At present, the support method 37 has not been determined.
JP-A-11-140991

Thus, in view of such current problems, the present inventors have adopted all methods regardless of whether the hole forming jig and the hole forming tool are supported by any of the above-described bolt type, one-touch type, and magnet type. It is an object of the present invention to provide a mold support device for a connecting hole and a lifting and reversing hole forming jig that can be used without wasting a conventional concrete product forming mold.

The formwork support device for the connecting hole and lifting reversal hole forming jig according to the present invention is as follows:
A first mounting component that is fitted from the outside into a through-hole formed in each of both side molds of a concrete product forming mold that is assembled into a substantially box shape, and is fixed to the side mold;
A second mounting component that covers the first mounting component and is fixed to the side mold,
The first mounting component includes a narrowed portion that fits into the through hole, and a bulging portion that has a stepped portion that protrudes from the narrowed portion and engages with the side mold, and the first mounting component A first insertion hole is drilled in the axial direction of
The second mounting component is disposed at a distance from the bulging portion of the first mounting component, and has a nut-shaped member having a female screw-shaped second insertion hole communicating with the first insertion hole, and the nut-shaped member A holding member for holding
The first mounting component and the second mounting component are provided to form a connection hole and a lifting support hole forming jig form support device.
It is characterized by
A first mounting component that is fitted from the outside into a through-hole formed in each of both side molds of a concrete product forming mold that is assembled into a substantially box shape, and is fixed to the side mold;
A second mounting component that covers the first mounting component and is secured to a side mold,
The first mounting component includes a narrowed portion that fits into the through hole, and a bulging portion that has a stepped portion that protrudes from the narrowed portion and engages with the side mold, and the first mounting component A first insertion hole is drilled in the axial direction of
The second mounting component is disposed at a distance from the bulging portion of the first mounting component, and has a nut-like member having a female screw-like second insertion hole communicating with the first insertion hole, and the nut-like member A holding member for holding
The first mounting part and the second mounting part are provided to form a connection hole, a lifting support hole forming jig form support device,
In the mold support device, it becomes possible to support any connecting hole of a magnet type, a one-touch type or a bolt type, and a lifting and reversing hole forming jig.
It is characterized by this.

As long as it is a formwork support device for connecting holes and lifting and reversing hole forming jigs according to the present invention, the hole forming jigs can be any of bolt type, one-touch type and magnet type. In other words, the conventional concrete product forming mold can be used without wasting it.

  Embodiments of the present invention will be described below with reference to the drawings.

  In the figure, reference numeral 1 denotes a lateral formwork. A slightly larger through-hole 2 is formed in the side mold 1, and a first mounting component 3 is fitted in and attached to the larger through-hole 2 in advance.

  Here, the first mounting component 3 includes a substantially disc-shaped narrowed portion 4 fitted into the large through-hole 2 from the outside of the side mold 1 and a stepped portion 5 projecting outward from the narrowed portion 4. The stepped portion 5 is a locking piece that is locked to the side mold 1 and has a bulging portion 6 that bulges out in a disk shape from the outer end of the stepped portion 5. Composed.

  Further, a concave groove 16 that is recessed in a substantially disc shape is provided on the inner surface of the lateral mold 1 of the narrowed portion 4, and is directed toward the axial direction of the narrowed portion 4 at a substantially central position of the concave groove 16. The first insertion hole 7 is provided therethrough.

  Reference numeral 8 denotes a second mounting component. The second mounting component 8 is disposed in a state of being separated from the distal end surface of the bulging portion 6 of the first mounting component 3 and has a female screw-shaped second insertion hole 9 communicating with the first insertion hole 7 described above. And a holding member 11 having a U-shape for holding the nut member 10.

  Thus, the second mounting component 8 is fixed to the outside of the side mold 1 so as to cover the first mounting component 3. The first mounting component 3 and the second mounting component 8 are included, and a support device 17 for the side mold 1 of the connecting hole and lifting reversal hole forming jig 12 is configured.

Here, the first mounting fixture 3 and the second mounting component 8 are attached in advance to the U-shaped groove and the culvert type concrete product formwork member, particularly the side formwork 1, and the connection holes and the lifting reversal are provided. A support device 17 for the side mold 1 of the hole forming jig 12 is formed.
Then, a connecting hole and a lifting reversal hole forming jig 12 are attached to and held by the support device 17 attached to the side mold 1 from the inside of the side mold 1.

  FIG. 1 shows an example in which a conventional bolt-type connecting hole and lifting reversal hole forming jig 12 is attached and held from the inside of the side mold 1.

  As is understood from FIG. 1, first, a bolt-type connection hole and a lifting reversal hole forming jig 12 are inserted into the second insertion hole 9 from the outside of the side mold 1, and the connection hole is inserted into the female screw of the nut member 10. Then, the male thread portion 13 of the lifting reversal hole forming jig 12 is screwed, and the tip end portion 14 is protruded to the inside of the lateral mold 1.

  Then, the projecting tip end portion 14 is covered with a connecting hole having a substantially pipe shape and a lifting reversal hole forming tool 15 and installed in the mold.

  And from that state, concrete is placed in the mold, and a connection hole or a lifting reversal hole is provided, whereby a U-shaped groove with a connection hole or a lifting reversal hole or a culvert type concrete product is manufactured. Become.

  However, in the present invention, a so-called magnet-type connection hole and lifting reversal hole forming jig 12 can be used as they are instead of the bolt-type connection hole and lifting reversal hole forming jig 12.

  The state of use is shown in FIG.

  The reason why a so-called magnet type connecting hole and lifting reversal hole forming jig 12 has been proposed instead of the bolt type connecting hole and lifting reversal hole forming jig 12 has already been described.

  Referring to FIG. 1 for explaining the present invention, the operation of screwing the connecting hole formed by the support rod and the male threaded portion 13 of the lifting reversal hole forming jig 12 into the female thread of the nut member 10 as the second mounting part 8 is described. This is because it has to be performed every time the formwork is assembled, and the more the formwork, the longer it takes.

  However, if it is a magnet type connecting hole and lifting reversal hole forming jig 12, it is fitted into the support protrusion 18 protruding from the center of the suction cup body 20 made of a magnet without performing a screwing operation when assembling the mold. In addition, it is not necessary to remove the bolt-type connecting hole and lifting reversal hole forming jig 12 when removing the formwork after placing the concrete, so that the concrete product can be manufactured very smoothly. Because it can be done.

  Here, the configuration of the magnet type connecting hole and the lifting reversal hole forming jig 12 according to the present invention will be described.

  First, a suction cup body 20 having a shape that fits in the concave groove 16 of the first mounting component 3 disposed inside the side molds 1 and 1, that is, a substantially disk-shaped magnet, is attached, and the suction cup body 20 is attached. It penetrates and is fixed to the side formwork 1.

  This fixing is performed by a bolt member 21 having a support protrusion 18 at the base end and penetrating through the suction cup body 20 and a nut member 22 screwed into and fixed to the tip end of the bolt member 21.

  Then, a metal pipe connection hole made of a magnetic material and a lifting reversal hole forming tool 15 are attached to the suction cup body 20 from the inside of the side mold 1.

  Thus, with this magnet type, it is possible to support the metal pipe connection hole and the lifting reversal hole forming tool 15 in the side mold 1 with one touch.

  In addition, the thickness of the suction cup body 20 is equal to the thickness of the side mold 1, and the side surface of the concrete product produced thereby has no drawbacks such as the formation of a step by recessing only the connecting hole and the lifting reversal hole forming portion. It has become a thing.

  Next, the configuration of the one-touch type connecting hole and lifting reversal hole forming jig 12 shown in FIG. 3 will be described.

  First, the one-touch type connecting hole and the lifting reversal hole forming jig 12 are not bolt-like support bars as in the bolt type.

  That is, as can be understood from FIG. 3, what projects into the side molds 1 and 1 is a short one-touch locking support projection 18 formed of, for example, a metal member.

  Thus, the operator attaches the pipe-shaped connecting hole and the lifting reversal hole forming tool 15 to the short one-touch locking support protrusion 18 via, for example, the adapter 19 made of a synthetic resin member or directly.

  That is, when manufacturing a large number of U-shaped grooves or culvert type concrete products, the manufacturing time is extremely long, and at the manufacturing site, an attempt is made to shorten the working time as much as possible.

For this reason, the use of bolt-shaped hole forming tool support rods that require time and troublesome twisting work like the bolt type described above is being avoided.
This is because not only the twisting work at the time of assembling the mold, but also at the time of removing the mold, the bolt-shaped hole forming tool support bar must be screwed off one by one.

  Therefore, the one-touch type support member as described above can speed up the work.

  In addition, it can be said that the one-touch type has been proposed because of the problem with the magnet type. As already described slightly, the magnet type, for example, in producing a concrete product with a drawing structure, forms connection holes at both end positions in the longitudinal direction of the concrete product. Then, it is necessary to reliably form a portion about 65 mm away from both end faces and below the center of gravity of the concrete product in the height direction.

  Here, when producing concrete products, when assembling the mold, pouring concrete from the upper opening, and burying the hole forming tool at a position lower than the center of gravity in the height direction, when the mold is removed When the mold opening and closing operation is performed, the plastic part formed as the magnet-type support protrusion 18 and the hole forming tool 15 formed of the metal member interfere with each other. As a result, the installation position of the hole forming tool 15 May deviate, and cracks may occur in the concrete product after demolding.

  In addition, the strength of the concrete around the embedded hole forming tool 15 is reduced, and there is a problem that the hole forming tool 15 is peeled from the concrete product during the drawing work, and the drawing work cannot be performed.

  This is the reason for the transition from the magnet type to the one-touch type.

  Thus, in the one-touch type connecting hole / lifting reversing hole forming jig 12, the above-mentioned problem is solved by combining, for example, a plastic molded adapter with a hole forming tool 15 having a conventional function.

  Thus, there are various means for supporting the hole forming jig and the hole forming tool, and the means for supporting the hole forming jig and the hole forming tool used in the manufacturing factory and by each concrete maker are various.

The present invention is a formwork supporting apparatus that can cope with all of these various connecting holes, lifting reversal hole forming jig 15 and hole forming tool.

BRIEF DESCRIPTION OF THE DRAWINGS It is structure explanatory drawing (the 1) explaining the structure of this invention.

FIG. 3 is a configuration explanatory diagram (part 2) illustrating the configuration of the present invention.

FIG. 3 is a configuration explanatory diagram (part 3) illustrating the configuration of the present invention;

It is structure explanatory drawing (the 1) explaining the conventional structure.

It is structure explanatory drawing (the 2) explaining the conventional structure.

It is a structure explanatory view (the 3) explaining the conventional structure.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Side mold 2 Through-hole 3 1st mounting part 4 Narrow part 5 Stepped part 6 Swelling part 7 1st insertion hole 8 2nd mounting part 9 2nd insertion hole 10 Nut member 11 Holding member
12 Connecting hole, lifting reversal hole forming tool 13 Male screw portion 14 Connecting hole, lifting reversing hole forming tool tip 15 Connecting hole, lifting reversing hole forming tool 16 Concave groove 17 Support device 18 Support protrusion
19 Adapter 20 Suction cup body 21 Bolt member 22 Nut member

Claims (2)

A first mounting component that is fitted from the outside into a through-hole formed in each of both side molds of a concrete product forming mold that is assembled into a substantially box shape, and is fixed to the side mold;
A second mounting component that covers the first mounting component and is fixed to the side mold,
The first mounting component includes a narrowed portion that fits into the through hole, and a bulging portion that has a stepped portion that protrudes from the narrowed portion and engages with the side mold, and the first mounting component A first insertion hole is drilled in the axial direction of
The second mounting component is disposed at a distance from the bulging portion of the first mounting component, and has a nut-like member having a female screw-like second insertion hole communicating with the first insertion hole, and the nut-like member A holding member for holding
The first mounting component and the second mounting component are provided to form a connection hole and a lifting support hole forming jig form support device.
A formwork supporting device for a connecting hole and a lifting reversal hole forming jig.
A first mounting component that is fitted from the outside into a through-hole formed in each of both side molds of a concrete product forming mold that is assembled into a substantially box shape, and is fixed to the side mold;
A second mounting component that covers the first mounting component and is secured to a side mold,
The first mounting component includes a narrowed portion that fits into the through hole, and a bulging portion that has a stepped portion that protrudes from the narrowed portion and engages with the side mold, and the first mounting component A first insertion hole is drilled in the axial direction of
The second mounting component is disposed at a distance from the bulging portion of the first mounting component, and has a nut-like member having a female screw-like second insertion hole communicating with the first insertion hole, and the nut-like member A holding member for holding
The first mounting part and the second mounting part are provided to form a connection hole, a lifting support hole forming jig form support device,
In the mold support device, it becomes possible to support any connecting hole of a magnet type, a one-touch type or a bolt type, and a lifting and reversing hole forming jig.
A formwork supporting device for a connecting hole and a lifting reversal hole forming jig.

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