JPH0552108U - Balcony formwork support device - Google Patents

Abstract

(57) [Summary] [Purpose] To make it possible to easily and easily attach a veranda formwork support device only from above the formwork. [Structure] One end of a length-adjustable support tool 14 is locked to an inner formwork 3 that forms a rising wall section 5 of the veranda, and the other end of this support tool 3 is adjacent to the inner end of the floor section 2 of the veranda. Being locked to the reinforcing bars 12 arranged in the beam portion 9 in the horizontal direction.

Description

[Detailed description of the device]

[0001]

[Industrial application]

 The present invention relates to a support device for a concrete form forming a rising wall portion of a veranda.

[0002]

[Prior art and its problems]

 Conventionally, as this type of frame support device, a support tool including two main body pipes which are connected to each other in an extendable and contractible manner and a draw pipe which is connected to one end of one of the main body pipes has been used. , The end of the other main body pipe in this support is locked to the inner mold for the rising wall of the veranda, and the tip of the extraction pipe is embedded in the mold that forms the slab in the building room. It is locked via a killing anchor.

Accordingly, the buried anchor has an anchor body having an L-shaped cross section having a bottom plate portion and a rising plate portion, one end of which is pivotally attached to the rising plate portion of the anchor body, and the other end of which is the aforesaid. It is composed of a connecting rod that is screwed and connected to the extraction pipe of the support tool, and the bowl-shaped washer is interposed between the upper surface of the indoor slab formwork and the bottom plate portion of the anchor body. Attach the anchor to the mold by inserting a bolt from the side of the mold into the mold and screwing a nut with a rotary handle from the bottom of the mold onto the protruding end of the bolt to tighten it. It is designed to be fixed. Therefore, when installing the anchor, the positioning of the anchor body and the bolt insertion work and the screwing tightening work of the nut are separately performed on the upper side and the lower side of the indoor slab formwork by separating them. Therefore, it took a lot of time and labor to install the anchor, and the installation work efficiency of the veranda form supporting device was very poor.

The present invention has been made in view of the above-described problems, and a veranda form supporting device can be easily and easily attached to the indoor slab or the veranda slab only from the upper side of the form. The purpose is to provide.

[0005]

[Means for Solving the Problems]

 The veranda form supporting device of the present invention is such that one end of a length-adjustable support is locked to the inner form forming the rising wall of the veranda, and the other end of the support is connected to the inner end of the floor of the veranda. It is characterized in that it is locked to a reinforcing bar arranged horizontally in the beam portion adjacent to.

[0006]

【Example】

 An embodiment will be described with reference to the drawings. FIG. 1 shows a state in which a veranda form supporting device according to the present invention is used. In this figure, reference numeral 1 denotes a concrete slab (floor portion) of a veranda that projects to the outside of a building. The formwork for forming 2 has a formwork plate 1a, and 3 and 4 are the inner and outer formwork forming the concrete rising wall portion 5 of the veranda, which have formwork plates 3a, 4a, respectively. .. Further, 6, 7 and 8 are formwork forming the concrete beam part 9 of the building, which respectively have formwork plates 6a, 7a, 8a, and 10 form an indoor concrete slab (floor part) 11 of the building. It is a formwork and has a formwork plate 10a. Reference numeral 12 denotes a main rebar horizontally arranged along the length direction of the beam in a plurality of upper and lower stages in the molds 6, 7 and 8 for forming the beam, 12a denotes a hoop rebar, and 13 denotes a secondary rebar. Is shown.

Reference numeral 14 denotes a support tool that supports the inner mold 3 for forming the rising wall portion 5 of the veranda, and includes two main body pipes 15 and 16 that are extendably connected to each other and an end of one main body pipe 15. And a front end of the other main body pipe 16 is removably locked to a square flap material 18 attached to the inner formwork 3 via a clamp 19. The tip end of the extraction pipe 17 is locked to the main rebar 12 in the middle stage, for example, which is arranged in the frame 7, 8 or 9 for forming the beam 9 via a locking means 20. The clamp 19 includes a U-shaped member 19a, a bolt 19b for fastening the U-shaped member 19a to the square flap 18, and a bracket 19c for removably pivoting the tip portion of the main body pipe 16. The base end of the extraction pipe 17 is fitted in the end of the main body pipe 15 and is fixedly connected by a retaining pin 29 which can be inserted and removed.

As shown in FIGS. 2 and 3, the locking means 20 includes a U-shaped frame-shaped locking metal fitting 21 that can be fitted to the main rebar 12 from the side, and the locking metal fitting 21. And a reinforcing bar pressing and fixing bolt 22 threadedly penetrated into the base plate portion 21a of the U-shaped frame-like locking metal fitting 21. The base plate portion 21a has a screw hole 23, and each side plate portion 21b has the main reinforcing bar. Each of the bolts 22 has a fitting recessed portion 24 that fits with the screw 12, and the bolt 22 has a screw shaft portion 25 that is screwed into the screw hole 23 at its inner end and a screw at the tip of the extraction pipe 17 at its outer end. A screw shaft portion 27 screwed into the hole 26 is formed, and a flat portion 28 for engaging a rotary operation tool (for example, a wrench) is formed in the middle portion.

Therefore, in order to attach the locking means 20 to the main reinforcing bar 12, the outer end side screw shaft portion 27 of the reinforcing bar pressing and fixing bolt 22 screwed to the locking metal fitting 21 is supported by the support. The holding pipe 14 is screwed into the screw hole 26 at the tip of the extraction pipe 17 connected to the main body pipe 15, and the fitting recess 24 of the U-shaped frame-like locking metal fitting 21 is fitted into the main rebar 11. From such a state, the bolt 22 is rotated by a rotating operation tool such as a wrench in a direction in which the tip of the inner end side screw shaft portion 25 of the bolt 22 enters into the locking metal fitting 21, and the screw shaft portion is rotated. The locking means 20 is attached and fixed to the main reinforcing bar 12 by pressing the main reinforcing bar 12 at the tip of 25.

As described above, in the formwork supporting device, the end portion of the main body pipe 16 that constitutes the support tool 14 is locked to the veranda rising wall forming inner formwork 3 via the clamp 19, and the removal pipe 17 is provided. Can be attached by locking the end of the to the main rebar 12 arranged in the beam forming molds 6, 7, and 8 via the locking step 20, and especially the end on the side of the drawing pipe 17. The locking work can be easily and easily performed only from the upper side of the slab frames 1 and 10. The locking means 20 is attached by screwing the outer end side screw shaft portion 27 of the reinforcing bar pressing and fixing bolt 22 screwed into the locking metal fitting 21 into the screw hole 26 at the front end of the extraction pipe 17 as described above. In this case, the fitting recess 24 of the locking fitting 21 can be fitted into the main rebar 12, and the bolt 22 can be simply rotated for attachment. Incidentally, the lower half portion of the extraction pipe 17 of the support tool 14 is embedded in concrete together with the locking means 20 after the concrete is cast, as shown in FIG.

In order to remove the support tool 14 after solidification of concrete, the clamp 19 is removed, the tip of the main body pipe 16 is detached from the inner mold 3, and the pin connecting the extraction pipe 17 and the main body pipe 15 is removed. Remove 29 and remove the main pipes 15 and 16. Then, the extraction pipe 17 whose lower half portion is embedded in the concrete may be detached from the reinforcing bar pressing and fixing bolt 22 of the locking means 20 while rotating in the loosening direction, and pulled out from the concrete.

In this embodiment, the reinforcing bar side end portion of the support tool 14 is locked to the middle-stage side main reinforcing bar 11 arranged in the beam part forming frames 6, 7, and 8. Not limited to this, it can be locked to an appropriate main rebar 12 such as the upper side or the lower side.

[0013]

[Effect of the device]

 According to the veranda formwork supporting device of the present invention, the other end of the support tool having one end locked to the inner formwork of the rising wall of the veranda is horizontally arranged in the beam part adjacent to the inner end of the floor part of the veranda. Since it is locked to the rebar, it is not necessary to perform the installation work from the lower side of the slab formwork as in the conventional case, and the work can be done only from the upper side of the slab formwork, thus supporting The installation work of the device is much easier and easier than the conventional device, and the construction efficiency can be significantly improved. Further, as described above, since the other end of the supporting tool only needs to be locked to the reinforcing bar, a special metal fitting such as an anchor for fixing the supporting tool to the slab formwork is not required.

[0014] Then, at the reinforcing bar side end portion of the support tool, a locking metal fitting that can be laterally fitted to the reinforcing metal, and a reinforcing bar pressing fixing bolt that is screwed through the locking metal fitting. When the locking means is detachably connected via the screw shaft portion formed on the outer end of the bolt, the reinforcing bar is used to lock the end part of the support tool to the main reinforcing bar. Since the outer end side screw shaft portion of the pressing and fixing bolt is screwed into the reinforcing bar side end portion of the support tool, the locking metal fitting is fitted to the main reinforcing bar, and the bolt is simply rotated. Installation work becomes easier.

[Brief description of drawings]

FIG. 1 is a side view showing an entire veranda form supporting device according to the present invention.

FIG. 2 is an enlarged side view showing a mounting state of a reinforcing bar side end portion of a support tool.

FIG. 3 is an enlarged exploded perspective view of a locking unit.

[Explanation of reference numerals] 1 veranda slab formwork 2 veranda slab (floor part) 3 veranda rising wall part inside formwork 4 veranda rising wall part outside formwork 5 veranda rising wall part 6 beam part formwork 7 Beam part formwork 8 Beam part formwork 9 Indoor slab formwork 10 Indoor side slab (floor part) 12 Main rebar of beam part 14 Supporting tool 20 Locking means 21 Locking metal fitting 22 Reinforcing bar pressing fixing bolt 24 Fitting recess 25 Spiral shaft 27 Spiral shaft

Claims (2)

[Scope of utility model registration request] 1. An end of a support tool whose length is adjustable is locked to an inner mold forming a rising wall portion of a veranda, and the other end of the support tool is placed in a beam portion adjacent to an inner end of the floor of the veranda. A formwork supporting device for a veranda, which is locked to rebars arranged in the horizontal direction. 2. An end portion of the supporting member on the side of the reinforcing bar is provided with a locking metal fitting that can be fitted laterally to the reinforcing bar, and a reinforcing bar pressing fixing bolt that is screwed through the locking metal fitting. 2. The veranda form supporting device according to claim 1, wherein the locking means is detachably connected via a screw shaft portion formed on an outer end of the bolt.