JPH07119297A - Steel form installing device - Google Patents

Abstract

PURPOSE:To promote a reduction in the number of part items, a simplification in structure, an improvement in the working property of installation and vice versa, and a reduction in cost. CONSTITUTION:This is a steel form installer which attaches each lower part of both rising forms 30 to each top face 25A of a symmetrical pair of base forms 25, and it is composed of a connecting member 26 with each hole 28 conformed to each mounting hole 27 of the base forms 25 at both ends, two fastening plats 32 with each rising form engaged part 34 and mounting hole 33, and two mounting bolts 29 being inserted into the mounting holes 27 and 33 and screwed in tapped holes 28 of the connecting member 26. In addition, the base form 25, the connecting member 26 and the fastening plate 32 are all integrally clamped together by the mounting bolts 29.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a steel form fitting device for constructing a concrete foundation.

[0002]

2. Description of the Related Art Generally, when a cloth foundation of a building is made of reinforced concrete, as shown in FIG. The base bottom plates 2 are arranged at regular intervals, and the mounting holes 3 extending in the longitudinal direction on the top plate via the base reinforcing bars 4 and the plate-shaped separators 5 on the bottom plates 2.
A pair of left and right base molds 1 provided with are mounted and fixed, and the lower part 15A of the rising mold 15 is fixed on the base mold 1 by the fixing metal fittings 7 by utilizing the screw holes 6 provided at both ends of the separator 5. Attached (for example, JP-A-5-140949)
(See the official gazette).

Conventionally, as shown in FIG. 4, the fixing member 7 is composed of a float-preventing member 8 having an L-shaped cross section, a mounting bolt 9, a float-preventing plate 10 and a float-preventing bolt 11, and is made of a float-preventing member. 8 is provided with a mounting hole 12 in the bottom plate 8A, and the rising piece 8B is provided with a notch groove 13 parallel to the bottom plate 8A. The width of the groove 13 is such that the float stopper plate 10 can be inserted and removed. It is wider than that.

The height of the head 9A of the mounting bolt 9 is substantially the same as the distance from the upper surface of the bottom plate 8A of the anti-floating member 8 to the lower upper surface of the cutout groove 13, so that the anti-floating plate 10 is substantially horizontal. It can be supported, and its threaded portion 9B penetrates through the mounting holes 12 and 3 and is screwed into the screwed hole 6 of the separator 5, and the floating member 8 is attached to the base mold 1 to the plate-shaped separator 5.
It is designed to be attached via.

The float-preventing plate 10 has a screw hole 14 at one longitudinal end thereof, and the float-preventing bolt 11 is screwed into the screw hole 14 so that the tip of the float-preventing bolt 11 has a rising form frame 15. The lower part 15A is brought into contact with the upper surface of the collar-shaped lower part 15A formed at the lower end, and the lower part 15A is pressed and fixed from above. 16 is concrete.

[0006]

By the way, according to the above-mentioned prior art, it is possible to prevent the rise of the rising formwork 15 at the time of pouring concrete, to prevent the cracking of the concrete and the generation of the bean board, and to facilitate the vibration of the base. Although it has an advantage that the stand-up formwork can be easily fixed even if the formwork is deformed, there are problems that the number of parts is large, the cost is high, and the workability is poor.

The present invention has been made in view of the above-mentioned circumstances, and an object thereof is to have a simple structure,
It is an object of the present invention to provide a steel form fitting device which can reduce the number of parts, reduce cost and improve workability.

[0008]

In order to achieve the above object, the present invention takes the following technical means. That is, the present invention is a steel mold mounting device for mounting the lower parts of the standing mold on the upper surfaces of the pair of left and right base molds, and a connecting member having screw holes at both ends corresponding to the mounting holes of the base mold. When,
The base frame, the connecting member, and the fastening metal fitting having a rising formwork locking portion and a mounting hole, and a mounting bolt that is inserted into both the mounting holes and screwed into a screw hole of the connecting member. The feature is that the stoppers are integrally fastened.

[0009]

According to the present invention, the base formwork is arranged at the foundation construction site, the mounting holes of the fasteners are aligned with the mounting holes provided at the predetermined positions of the base formwork, and the mounting bolts are inserted into both mounting holes. Then, the mounting bolt is screwed into the screw hole of the connecting member arranged so that the screw hole is aligned with the lower side of the mounting hole of the base formwork, and the connecting member is attached to the left and right base formwork through the metal fittings. Temporarily fix it, place the standing form on the left and right base forms so that the flanges are on the opposite sides, hook the locking parts of the stoppers on the flanges, and then attach the mounting bolts. By fully tightening and fastening the fastening piece to the base formwork through the connecting member, the rising formwork can be locked and fixed to the base formwork by the fastening piece.

When the rising formwork is released from the base formwork, the mounting bolt is rotated in the direction of loosening,
The stand-up formwork can be detached from the base formwork by removing the locking part of the stopper from the flange part of the stand-up formwork.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 3 show an embodiment of the present invention, in which 21 is a rubble stone laid in a concrete foundation construction site, 22 is laid on a rubble stone 21 crushed with level adjusting mortar, Reinforcing bar base plates 23 are arranged on the mortar 22 at regular intervals. A base rebar 24 is disposed and fixed on the bottom plate 23.

Reference numerals 25 and 25 are a pair of left and right steel base molds, which are L-shaped and fixed to the reinforcing bar base bottom plate 23 symmetrically to each other and fixed on the base reinforcing bar 24. It is supported on a connecting member 26 that also serves as a separator. Further, on the upper surface 25A of the molds 25, 25, elongated hole-shaped mounting holes 27 extending in the longitudinal direction are provided at predetermined intervals at symmetrical positions (see FIG. 3).

As shown in FIG. 3, the connecting member 26 is in the form of a strip plate, and screw holes 28 are provided at both longitudinal ends of the connecting member 26 so as to correspond to the mounting holes 27 of the upper surface 25A of the formwork. A mounting bolt 29, which is inserted from above into 27, is screwed into it, and supports the mold 25 so that its upper surface 25A is substantially horizontal and the left and right are integrally connected to maintain the posture.

Numerals 30 and 30 are a pair of left and right steel stand-up molds. Collar portions 30A and 30B having an L-shaped cross section are provided at the upper and lower ends in a vertically symmetrical manner on the opposite outside, and vertical bars 31 are provided on the outside surface. A plurality of lower end flanges 30B are provided on the upper surface 25A of the base frame. Reference numeral 32 denotes a stopper, which is substantially L-shaped, and has a mounting hole 33 formed in the lateral piece 32A, the rising piece 32B has an upper end at both ends in the longitudinal direction thereof, and a hook shape below the lateral piece 32A. Bent rising form frame locking portions 34, 34 are formed, and the locking portion 3
4 is adapted to be hooked from the upper side to the upward piece 35 of the lower end flange portion 30B of the rising formwork 30.
The vertical crosspiece 31 of the stand-up formwork 30 can be fitted between the frames 4 and 34.

In the above embodiment, when mounting the stand-up formwork 30 on the base formwork 25, first, the base formwork 25 is used.
The metal fittings 32 are placed on the respective mounting holes 27 so that the mounting holes 33 are aligned with each other, and the mounting bolts 29 are passed through the mounting holes 27 from the mounting holes 33 to form the screw holes 2 at both ends of the connecting member 26.
8, the stopper 32 is temporarily fixed to the base mold 25, and as shown in FIG. 3, the left and right base molds 25, 25 are connected to each other to maintain the posture.

Next, the standing molds 30 are opposed to each other on the base mold 25 and arranged at a predetermined interval, and the vertical bars 31 are arranged.
Is positioned in correspondence with the stopper 32, and is supported by a stand-up frame support rod (not shown), and then the stopper 34 is raised so that the vertical rail 31 fits between the stoppers 34 of the stopper 32. Hook on the upward piece 35 of the formwork 30 to attach the mounting bolt 29.
The locking portion 34 by screwing it further downward.
Pushes the upward piece 35 of the rising mold 30 downward to press and fix the lower surface of the mold collar 30B to the upper surface 25A of the base mold, and at the same time, the stopper 32, the base mold 25, and the connecting member 26 are attached to the mounting bolt. It is integrally fastened and fixed by 29, and the state shown in FIGS. 1 and 2 is obtained.

In this way, when the lower end flange portion 30B of the rising mold 30 is fixed to the base mold 25, concrete 36 is poured between the facing surfaces of the rising mold 30 and a vibrator (not shown) is used. It is filled so that no voids are created. At this time, the lower end collar portion 30B of the rising formwork 30 does not float up from the upper surface 25A of the base formwork, and the vibrator can be easily attached without worrying about the uplifting, and concrete cracks and beanboard can be prevented. can do.

After completion of the concrete foundation construction,
When removing the stand-up formwork 30 from the base formwork 25, that is, when releasing the fixing by the fastener 32, after the mounting bolt 29 is unscrewed in the loosening direction (upward), the fastener 3 is released.
By removing the second locking portion 34 from the upward piece 35 of the rising mold 30, the rising mold 30 can be easily removed. Further, by loosening and removing the mounting bolt 29, the base mold 25, The connecting member 26 and the stopper 32 can be disassembled.

The present invention is not limited to the above embodiment, but the design can be changed appropriately.

[0020]

As described above, the present invention is a steel form fitting device for mounting the lower parts of the standing form on the upper surface of the pair of left and right base forms respectively, and corresponds to the mounting holes of the base form at both ends. A connecting member having the threaded holes formed therein, a stopper having a rising frame engaging portion and a mounting hole, and a mounting bolt that is inserted into the mounting holes and screwed into the screw holes of the connecting member. It is characterized in that the base formwork, the connecting member and the fastener are integrally fastened by bolts, so the structure is simple and the number of parts can be reduced, and the mounting and dismounting are easy and the workability is high. The rising formwork and the base formwork can be securely and firmly fastened and integrated, so that the rising formwork can be reliably prevented from rising when placing concrete, and it is easy to apply the vibrator. so Ruhoka, it is possible to prevent the occurrence of concrete cracks, peanut brittle.

[Brief description of drawings]

FIG. 1 is a partially cutaway assembled side view showing an embodiment of the present invention.

FIG. 2 is a perspective view of the same embodiment.

FIG. 3 is an explanatory view of an assembly work state of the embodiment.

FIG. 4 is a partially cutaway side view showing a conventional example.

[Explanation of symbols]

 25 Base Formwork 25A Upper Surface 27 Connecting Member 28 Screw Hole 29 Mounting Bolt 30 Standing Formwork 32 Stopper 33 Mounting Hole 34 Standing Formwork Locking Part

Claims (1)

[Claims] 1. A steel form fitting device for mounting a lower part of a standing form on upper surfaces of a pair of left and right base forms respectively, and a connecting member having screw holes at both ends corresponding to mounting holes of the base form. A stopper having a rising formwork locking portion and a mounting hole, and a mounting bolt that is inserted into the mounting holes and screwed into a screw hole of the coupling member. And a steel mold mounting device, characterized in that the fasteners are integrally fastened.