JPH0631048Y2 - Formwork support device - Google Patents

Description

[Detailed Description of the Invention] << Industrial field of application >> The present invention relates to a support device for a formwork for suppressing the outward expansion of a formwork for constructing a concrete wall.

<< Prior Art >> In a conventional form supporting device, support pipes are attached vertically and horizontally along the form. That is, as shown in FIG. 4, a threaded rod (Home Tie (registered trademark)) 4 is erected on the form 1, the holding metal fitting 21 is passed through this, and the nut 7
The support pipe 22 was attached to the formwork by tightening with.

<Problems to be solved by the invention> In such a conventional mold supporting device, it is necessary to prepare several kinds of supporting pipes having different lengths according to the length of the mold. Further, there is a problem that the support pipe must be supported by a person until the tightening is completed.

The present invention aims to eliminate such problems by supporting the formwork using scaffolding plates instead of support pipes.

<Means for Solving the Problems> A formwork support device of the present invention is a plurality of vertical support members which are vertically attached to each other along the outer surface of the formwork and are horizontally spaced from each other. In addition, a plurality of threaded rods that are attached to each other in the horizontal direction at intervals, and a plurality of elongated scaffolding plates passed over the plurality of threaded rods so as to partially overlap each other, A tightening nut screwed to the screw rod, an outer holding metal fitting inserted between the screw rod and between the outside of the scaffold plate and the tightening nut, and between the inside of the scaffold plate and the formwork. It consists of an inner holding metal fitting. These inner and outer restraining metal fittings are provided with a tubular body through which a screw rod is inserted, and two long and short arms extending in mutually opposite directions from the tubular body and having pawls at their tips, respectively. Is configured to hang on the upper surface of the lower scaffolding plate, and the claw of the longer arm hangs on the upper surface of the upper scaffolding plate.

<< Example >> In FIG. 1, reference numeral 1 is a concrete wall 2.
It is a mold for forming. Reference numeral 3 is a spacer for keeping the space between the molds constant, and a screw rod (home tie) 4 is screwed and attached to the end protruding from the mold 1. The screw rods 4 are attached to the same level at regular intervals (for example, 90 cm intervals).

An inner retaining metal 5 and an outer retaining metal 6 are inserted into the screw rod 4 and tightened with a nut 7. Reference numeral 8 is a scaffold plate passed over the screw rod 4. The scaffolding plate 8 may be made of wood or metal.

The inner and outer restraining metal fittings 5 and 6 have substantially the same shape, and both of them are long and short with a cylindrical body 9 through which the threaded rod 4 is inserted, and extending from the cylindrical body in mutually opposite directions, and a claw 10 at the tip is hooked on the upper surface of the scaffold plate 8. It has two arms 11. And the shorter arm 1
1a has a length corresponding to the thickness of one scaffold plate, and the longer arm 11b has a length of two plates.

In this supporting device, first, the vertical pipes (vertical supporting members) 12 are attached to each other in the vertical direction along the outer surface of the mold 1 with a horizontal interval therebetween. Attaching the vertical pipe 12 is the fourth
A conventional holding metal fitting 21 as shown in the figure can be used.

Next, pass the inner and outer restraining metal fittings 5 and 6 through the screw rod 4,
Screw loosely. In this state, the inner and outer retaining metal fittings 5, 6
The scaffolding plate 8 is passed over the screw rod 4 so as to come between them. As shown in FIG. 2, the scaffolding plate 8 is partially overlapped and passed over the screw rod. Then, the length of superposition is adjusted so that the entire length matches the length of the mold 1.

Finally, the tip claws 10 of the arms 11 of the inner and outer restraining metal fittings 5 and 6 are hooked on the upper surface of the scaffolding plate 8 and the nut 7 is tightened. In this way, the scaffolding plate 8 is the arm 1 of the outer holding metal fitting 6.
1 is pushed by the vertical pipe 12 and the vertical pipe 1
Support two.

In addition, in the screw rod 4 on which only the scaffolding plate 8a is placed on the lower side, the inner and outer restraining metal fittings 5 and 6 are shorter arm 11
where a is used and the upper scaffolding plate 8b is also placed,
As shown by the chain line in FIG. 1, the longer arm 11b is used. In this way, the scaffolding plate 8 is restrained by the claws 10 of the inner and outer restraining metal fittings 5 and 6 and does not come out upward.

<Effect> The support device of this invention has the following effects.

(B) Since the scaffolding boards are attached to the formwork such that they are partially overlapped with each other, the length of the formwork can be freely adjusted by adjusting the stacking allowance only by using the standard length scaffolding board.

(B) The work can be done easily because the scaffolding plate can be tightened with it placed on the screw rod.

(C) Since the inner and outer restraining metal fittings are provided with two long and short arms, the long and short arms can be selected and used according to the placement of the scaffolding plate for tightening.

[Brief description of drawings]

FIG. 1 is a sectional view of a form supporting device, FIG. 2 is an explanatory view showing how scaffolding plates are arranged, FIG. 3 is a perspective view of an outer holding metal fitting, and FIG.
The figure is a cross-sectional view of a conventional form supporting device. 1 ... Formwork, 4 ... Screw rod, 5 ... Inner restraining metal, 6 ...
… Outside restraint, 7 …… Nut, 8 …… Scaffolding board, 9 ……
Cylindrical body, 10 ... Claw, 11 ... Arm, 12 ... Vertical support material

Claims (1)

[Scope of utility model registration request] 1. A plurality of vertical support members (12) vertically attached to each other along the outer surface of a mold (1) at intervals in the horizontal direction, at right angles to the mold, and mutually. A plurality of threaded rods (4) attached at intervals in the horizontal direction, and a plurality of elongated scaffolding plates (8) passed over so as to partially overlap the plurality of threaded rods, A tightening nut (7) screwed to the screw rod, an outer holding metal fitting (6) which is inserted through the screw rod and placed between the outside of the scaffold plate and the tightening nut, and the scaffold plate. It consists of an inner retaining metal fitting (5) placed between the inner side and the mold, and these inner and outer retaining metal fittings are a cylindrical body (9) through which the screw rod is inserted, and the cylindrical metal body in opposite directions. It has two long and short arms (11) each extending and having a claw (10) at the tip. The shorter arm has the claw hanging on the upper surface of the lower scaffolding plate and the longer one. Arm formwork support device pawl is in length as applied to the upper surface of the upper anchorage plate.