JPH056353Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Field of Application) This invention relates to a veranda formwork support device suitable for supporting formwork for constructing mainly balcony handrails and the like in concrete construction.

(Prior Art) Conventionally, the following methods have been mainly used to construct balcony handrails with concrete. In other words, the formwork that forms the inner wall of the handrail is supported and fixed by connecting materials such as pipe supports and crosspieces, while the formwork that forms the outer wall of the handrail is supported and fixed by connecting materials such as pipe supports and crosspieces, while the formwork that forms the outer wall of the handrail is used as anchors for wrapping around the roots of the outside wall. It was supported by means such as being supported on thick corners fixed with bolts, etc. (see "Illustrated architectural mold construction by Kazupo Hatanaka, published by Rikogakusha", p. 125 / "Easy-to-understand architectural techniques for constructing formwork") Tatsuo Naito, Keiji Himi, published by Kajima Publishing” (see page 70).

In addition, Japanese Patent Application Laid-Open No. 58 (1972) disclosed a method for supporting a veranda handrail formwork, in which a pillar is provided to erect and fix a thick member for receiving a slab that overhangs the outside of the balcony handrail, and this pillar is connected to a formwork for constructing the balcony handrail. -Described in Publication No. 91270.

(Problem that the invention aims to solve) However, in the former method, in which the formwork is supported inside the balcony, the pipe supports, crosspieces, etc. used as formwork support materials obstruct the work path, and the formwork is There was an inconvenience that work efficiency decreased after the frame was installed.

In addition, when supporting the formwork with anchor bolts for wrapping around the roots of external walls, it is difficult to sufficiently increase the support strength of the lower end of the formwork for the external wall surface, which is subjected to the most load during concrete pouring. There was a risk of an issue occurring in this area.

On the other hand, in the latter method of supporting a formwork, the upper end portion of a support column supported by a joist or the like is connected to and fixed to the formwork. Therefore, the upper end portion of the formwork is supported by the supports, but the lower end portion of the formwork is only erected on the joists.
As a result, as with the former high formwork support method, the support strength of the lower end of the formwork was not sufficient, and there was a risk that the lower end of the formwork would bulge during concrete pouring.

Therefore, this idea was devised to solve the above-mentioned inconveniences, and it was possible to omit the support members inside the balcony, secure a working path, and achieve accurate work without using any consumables such as anchor bolts. To provide a formwork supporting device for a veranda, which can be constructed and which can support the formwork extremely firmly without the risk of sagging at the lower end of the formwork.

(Means for Solving the Problems) In order to achieve the above-mentioned purpose, this invention provides a column that is fixed vertically to the slab receiving end material that extends outside the balcony handrail, and connects this column and the balcony. In a formwork support device for constructing a concrete verandah handrail, in which a telescopic support metal fitting that connects to the formwork for constructing a handrail is provided on the side of the column so that the height can be adjusted, the column is perpendicular to the lower end of the column. horizontal material,
It consists of a reinforcing material that connects and fixes the column and the horizontal member, and the means to solve the problem is to bend the lower end of the reinforcing material vertically and press and fix the lower end of the formwork with the bent lower side surface. .

(Function) According to this invention, the formwork for constructing the handrail is connected and supported via a support fitting to a support that is vertically erected and fixed to a slab receiving end member that extends outside the balcony handrail.

The support angle of the formwork can be adjusted to any desired support angle by telescopically adjusting the length of the support fitting that connects the pillars and the formwork.

The lower end portion of the formwork is pressed by the vertically bent lower end portion of the reinforcing member, and the formwork is fixed together with the support column to which the reinforcing member is connected.

(Example) Hereinafter, an example of this invention will be described in detail with reference to the drawings.

Reference numeral 1 shown in the figure is a support that is erected and fixed to a thick end material such as a joist A of a slab formwork. This pillar 1
is provided with a reinforcing member 2 extending obliquely downward from a proper position on its side. The lower end of the reinforcing material 2 is
It is installed so as to be erected and fixed on the upper surface of the joist A in the same manner as the support column 1. In particular, by vertically bending the lower end of the reinforcing member 2, this lower end is brought into contact with the lower end of the formwork on the outer wall surface of the handrail, and the lower end of the formwork is strongly pressed and fixed. In the illustrated example, the means for fixing the column 1 and the reinforcing member 2 to the horizontal end thick B includes a horizontal member 3 that is perpendicular to the lower end of the column 1, and a reinforcing member 2 that connects and fixes the column 1 and the horizontal member 3. A fitting 3A having a substantially U-shaped cross section is provided at the lower end of each of the pillar 1 and the reinforcing member 2, and a wedge 3B is inserted between the tips of the fitting 3A.

Reference numeral 4 denotes a support fitting that connects and supports the support column 1 and the formwork. This support fitting 4 includes a fixing part 5 that removably fixes the support fitting 4 itself to the column 1, and an extendable part 6 that is extendable from the fixing part 5 and adjusts the distance between the column 1 and the formwork. The holding part 7 is provided at the tip of the extensible part 6 and connects the support fitting 4 itself and the formwork in a detachable manner. The fixing part 5 shown in FIGS. 2 and 3 includes a pair of fixing metal fittings 5B at both ends of a fixing bolt 5A that penetrates the side surface of the column 1.
is provided, and fixed to the support 1 by adjusting the distance between the fixing fittings 5B with a wing nut 5C screwed onto the fixing bolt 5A. At this time, the support 1 used has a slide opening 1A formed on its side surface, as shown in FIG.

The extendable part 6 has an inner cylinder 6A fixed to the fixed part 5 and an outer cylinder 6B rotatably connected to the grip part 7 via a connecting bolt 6D, and is rotated as the handle 6C is rotated. A connecting bolt 6D is housed in the outer cylinder 6B, and the connecting bolt 6D is screwed into the inner cylinder 6A to adjust its length freely.

The grip part 7 is composed of a fitting tool 7A having a substantially U-shaped side surface that fits into the lateral end B of the formwork, and a wedge 7B that is inserted between the tips of the fitting tool 7A.

Note that the configuration of the support fitting 4 is not limited to the illustrated example, and other design changes may be made as long as it has a structure that allows the support 1 and the formwork to be connected in a freely adjustable manner.

(Effects of the invention) This invention achieves its original purpose by being configured as described above.

That is, in a formwork support device for constructing a concrete balcony handrail, a post 1 is installed and fixed perpendicularly to a thick member for receiving a slab that protrudes outside the balcony handrail, and this post 1 and a support for constructing a balcony handrail are installed. By providing a telescopic support fitting 4 that connects the formwork to the side of the pillar 1 so that its height can be adjusted freely, it is no longer necessary to support the formwork for constructing a handrail with supports that can be seen inside the balcony, as in the past. has disappeared.

Therefore, a sufficient working path is ensured within the balcony, and work efficiency after the formwork is installed is greatly improved.

Moreover, since this inventive support device fixes the formwork for constructing the handrail to the thick material for the slab formwork, a strong fixing force can be obtained. Furthermore, there is no need for any consumables such as anchor bolts that were conventionally used for fixing this type of formwork, and by repeatedly using this devised support device, it is possible to reduce material costs.

Furthermore, by adjusting the expansion and contraction of the support fittings 4, the angle at which the handrail construction formwork is erected can be easily and reliably adjusted, so that extremely accurate handrail construction can be achieved.

Furthermore, the column 1 is made up of a horizontal member 3 that is perpendicular to the lower end of the column 1, and a reinforcing member 2 that connects and fixes the column 1 and the horizontal member 3. The lower end of the reinforcing member 2 is bent vertically, and Since the lower end of the formwork is pressed and fixed with the lower side, the support 1, the horizontal member 3, and the reinforcing member 2 are
Fix the lower end of the formwork together. As a result,
The supporting strength of the lower end of the formwork, which was a conventional problem, can be sufficiently increased, and the fear of the lower end of the formwork being bulged during concrete pouring has been eliminated.

In this way, according to this invention, it is possible to omit supporting members on the inside of the balcony, secure a working passage, and enable accurate construction without using any consumables such as anchor bolts. This has practical effects such as extremely strong formwork support without the risk of bulging at the lower end.

[Brief explanation of the drawing]

The drawings show an embodiment of this invention; Fig. 1 is a front view showing the state of use, Fig. 2 is a front view showing the support fitting, Fig. 3 is a plan view also showing the support fitting, and Fig. 4 is a front view showing the usage state. FIG. 3 is a side view showing a support. A...Joist, B...Horizontal thick, C...Vertical thick, 1
...Strut, 1A...Slide opening, 1B...Connecting plate, 1C...Drain hole, 2...Reinforcement material, 3...Horizontal material, 3A...Fitting tool, 3B...Wedge, 4...Support Metal fittings, 5...Fixing part, 5A...Fixing bolt, 5B...
...Fixing bracket, 5C...wing nut, 6...extensible part,
6A... Inner cylinder, 6B... Outer cylinder, 6C... Handle, 6D... Connection bolt, 7... Gripping part, 7A...
...Fitting tool, 7B...wedge.

Claims (1)

[Scope of utility model registration request] A post is installed vertically and fixed to the slab receiving end material that overhangs the outside of the balcony handrail, and a telescoping support bracket is attached to the side of the post to connect this post and the formwork for constructing the balcony handrail. In a formwork support device for constructing a concrete verandah handrail that is height-adjustable, the column consists of a horizontal member perpendicular to the lower end of the column, and a reinforcing member that connects and fixes the column and the horizontal member. A formwork support device for a balcony, characterized in that the lower end of the formwork is bent vertically, and the lower end of the formwork for constructing a balcony handrail is pressed and fixed by the bent lower side surface.