JP2552732Y2 - Veranda form anchor - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a buried-type beller used in a veranda-form supporting device for supporting a formwork for a handrail wall of a veranda to a form for a slab in a building through a support. The present invention relates to a formwork anchor.

[0002]

2. Description of the Related Art The above-mentioned formwork supporting device has a support consisting of two main pipes which are normally connected in a stretchable manner and a hollow pipe which is connected to one of the main pipes. By locking the end of the main body pipe to the inner formwork for the veranda handrail wall, and detachably connecting the punched pipe to a burial-type anchor fixed to the indoor slab formwork. The sliding wall portion formwork is supported at a vertical position.

A conventional anchor comprises an anchor body having an L-shaped cross section made of an angled material having a bottom plate portion and a rising plate portion, and a horizontal support shaft horizontally welded and fixed to the center of the rising plate portion of the anchor body. A connecting rod having one end pivotally connected to the horizontal support shaft, two vertical support shafts fixed to both ends of the bottom plate portion and protruding downward, and a bowl-shaped washer attached to each vertical support shaft. In the state where the bowl-shaped washer is interposed between the upper surface of the indoor slab formwork and the bottom plate of the anchor body, vertical support shafts at both ends of the bottom plate are penetrated through the indoor slab formwork. By screwing a nut with a rotating operation handle from the lower side of the indoor slab formwork to the screw shaft section at the lower end of each of the vertical support shafts, the anchor is attached and fixed to the indoor slab formwork. The tip screw shaft of the connecting rod is The drain pipe of the lifting device so that screwed connection.

[0004]

According to the conventional anchor as described above, three anchors, that is, a horizontal spindle and two vertical spindles forming a screw shaft portion are required. It is necessary to fix these spindles to the anchor body by welding or the like,
In addition, since the connecting rod must be pivotally supported on the horizontal support shaft in a cantilever state, there is a problem that the production of the anchor requires a great deal of time and costs.

SUMMARY OF THE INVENTION In view of the above problems, an object of the present invention is to provide an anchor for a veranda formwork that can be easily manufactured and can be reduced in cost.

[0006]

According to the anchor for a veranda formwork of the present invention, a washer is fitted to each of parallel legs at both ends of a rod-shaped body bent in a U-shape, and a screw shaft is provided at the tip of the leg. A plate material having a U-shaped cross section is fitted between both legs of the rod-shaped body, and a base end of a connecting rod having a screw shaft portion at a distal end is located between both side plate parts of the plate material at a position outside the rod-shaped body. It is characterized by being pivotally supported pivotally.

[0007]

Embodiments will be described with reference to the drawings.
FIG. 1 shows a veranda form support device for carrying out the present invention. In this figure, reference numeral 1 denotes a form for forming a concrete slab (floor) 2 of a veranda extending outside a building. It has a plate 1a and 3 and 4 are inner and outer forms forming the concrete handrail wall 5 of the veranda, having form plates 3a and 4a, respectively. Also, 6,7
And 8 are forms that form the concrete beam 9 of the building,
Forming plates 6a, 7a and 8a are respectively provided, and reference numeral 10 denotes a forming form of a concrete slab (floor portion) 11 on the indoor side of the building, which has a forming plate 10a. Reference numeral 12 denotes a main reinforcing bar horizontally arranged along the beam length direction in a plurality of upper and lower stages in the beam forming molds 6, 7, and 8, 12a denotes a hoop reinforcing bar, and 13 denotes a secondary reinforcing bar. Is shown.

Reference numeral 14 denotes a support for supporting the inner formwork 3 for the veranda handrail wall. The main body pipes 15 and 16 are connected to each other in a stretchable manner.
The other end of the main body pipe 16 is detachably locked via a clamp 19 to a square flap material 18 attached to the inner formwork 3, The punching pipe 17 is used for the indoor slab formwork 10.
Is detachably connected to the buried-type anchor 20 fixed to the form plate 10a. The clamp 19 is
It comprises a U-shaped member 19a, a bolt 19b for fastening the U-shaped member 19 to the square flap member 18, and a bracket 19c for pivotally connecting the distal end of the main body pipe 16. The base end of the pull-out pipe 17 is fitted into the end of the main body pipe 15 and is connected and fixed by a removable stop pin 21.

As apparent from FIGS. 2 and 3, the buried-type anchor 20 has screw shaft portions 23a at both ends.
A bar-shaped washer 24 is fitted and engaged with the parallel legs 23, 23 at both ends of the rod 22 bent in a U-shape, and a cross section U is formed between the legs 23, 23 of the rod 22. The plate-shaped member 25 is externally fitted, and between the side plate portions 25a, 25a of the plate member 25 at a position outside the rod 22.
A base flat portion 26b of a connecting rod 26 having a screw shaft portion 26a formed at the distal end is pivotally connected by a support shaft 27 so as to be swingable.

When the anchor 20 is manufactured, a rod 22 and a washer 24 as constituent members of the anchor 20 are used.
Does not need to be specially manufactured, but only needs to be bent using a conventionally used separator for holding a formwork. That is, a conventional separator bolt in which a screw shaft portion is formed at both ends and a bowl-shaped washer is fitted and locked therein is bent into a U-shape, and parallel leg portions 23, 23 are formed at both end sides. May be formed. Accordingly, after that, a metal plate having an appropriate shape is bent into a U-shaped cross section to form a plate material 25, and this plate material 25 is fitted between the legs 23 of the separator bolt, and both sides of the plate material 25 are formed. Plate part 2
Base flat portion 26b of connecting rod 26 between 5a and 25a
Is pivotally supported by a support shaft 27. As the connecting rod 26, a conventional type can be used.

If the U-shaped plate 25 is simply fitted between the legs 23 of the rod 22, the plate 2 is
5 rotates around the axis with respect to the rod-shaped body 22, causing inconvenience. Therefore, as shown in FIGS.
5a is caulked at both ends (the caulked portion is indicated by 28 in the figure)
) To fix the plate 25 and the rod 22.

As shown in FIG. 2, when mounting the buried anchor 20 having the above-described structure, a pair of leg insertion holes formed in required portions of the form plate 10a of the indoor slab form 10 are used. 29, 29, both end legs 2 of rod-shaped body 22
3 and 23 are inserted downward to protrude downward, and a bowl-shaped washer 24 fitted and locked to each leg 23 is brought into contact with the form plate 10a. From the side, the nut 30 with the rotating operation handle is connected to the tip screw shaft portion 23 of each of the leg portions 23.
a and screwed into the anchor 20
Is fixed to the form plate 10a. The tip screw shaft portion 26a of the connecting rod 26 is screwed and connected to a screw hole 17a at the tip of the extraction pipe 17 in the support 14.

[0013]

[Effect of the Invention] The anchor for a veranda formwork of the present invention is formed by bending a rod-shaped body having a screw shaft at both ends into a U-shape.
A washer is fitted to each of the parallel legs at both ends, a U-shaped plate is externally fitted between the legs of the rod, and the plate is disposed at a position outside the rod between both side plates of the plate. The base end of the connecting rod having a screw shaft portion is pivotally supported so as to be swingable. The structure is simple, the number of parts is small,
No welding work is required at the time of assembly, and in the manufacture of this anchor, the rod-shaped body and the washer as constituent members of the anchor are formed using a conventionally used form-holding separator. Just bend it,
After that, a metal plate having an appropriate shape is bent into a U-shaped cross section to form a plate material. The plate material is fitted between both legs of the separator bolt, and a connecting rod base is provided between both side plates of the plate material. Since the ends need only be pivotally supported, the production becomes extremely simple and easy, so that the production cost can be significantly reduced as compared with the conventional anchor.

Further, by fixing the plate and the rod by caulking the plate, rotation of the plate with respect to the rod is prevented, thereby preventing rattling of the support of the veranda form support device. Thus, the support can be securely held.

[Brief description of the drawings]

FIG. 1 is a side view showing a veranda form support device using an anchor of the present invention.

FIG. 2 is an enlarged side view showing an anchor in the support device of the above.

FIG. 3 is an enlarged sectional view taken along line AA of FIG. 2;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Formwork for veranda slab 2 Slab of veranda 3 Inner formwork for veranda handrail wall 4 Outside formwork for veranda handrail wall 5 Veranda handrail wall 10 Formwork for indoor slab 10a For indoor slab Formwork plate 11 of the formwork 11 Indoor slab 14 Supporting tool 17 Supporting pipe 20 Anchor 22 Bar-shaped body 23 Leg 24 Washer 25 Plate 25a Side plate 26 Connecting rod 26a Screw shaft 27 Spindle 28 Swaged portion 30 Handled nut for rotating operation

Claims (2)

(57) [Scope of request for utility model registration] 1. A bar-shaped body bent in a U-shape, a washer is fitted to each of the parallel legs at both ends, a screw shaft is provided at the tip of the leg, and a U-shaped cross section is provided between the two legs of the bar-shaped body. And a veranda form anchor which pivotally supports a base end of a connecting rod having a screw shaft portion at a distal end between both side plate portions of the plate material at a position outside the rod-shaped body. . 2. The veranda form anchor according to claim 1, wherein the plate and the rod are fixed by caulking the plate.