JPH04124371A - Form for column - Google Patents

Abstract

PURPOSE:To facilitate assembly and stripping, to promote diverting efficiency, to save man-power and to reduce a cost by mounting sheathing boards to the inside of a polygonal form, and constituting a polygonal form of a timbering member so divided into plural parts that the parts are opened to side ways. CONSTITUTION:Divided pieces 3, 4 and 5 having sheathing boards 14 to the insides of them are capable of rotating through pins 6 and 7. The divided pieces 3 and 5 are separatably connected to a connection piece 8, a plurality of stages of timbering members 1 formed in the shape of an octagon are provided at proper intervals in a vertical direction, and the timbering members 1 ... are linked with a plurality of connecting members 2 to form a form for a column. In the case the form is stripped, the connection of the divided pieces 3 and 5 is released, the timbering members 1 are developed to side ways together with the sheathing boards 14 through the pins 6 and 7 to open, and the form can be easily removed.

Description

[Detailed description of the invention] (Technical field to which the invention belongs) The present invention relates to formwork for columns of polygonal cross section.

(Problems to be solved by the invention and its features) Conventional formwork for columns with a polygonal cross section is extremely troublesome to assemble and dismantle, and requires a specialized formwork worker.

The object of the present invention is to provide a column formwork with a polygonal cross section that is extremely easy to assemble and demold, and its structural features are as described in the claims. be.

(Description of Examples) FIGS. 1 and 2 show a case in which a pillar with a large square cross section is divided into three parts by a formwork.

The supporting materials 1, which are provided in multiple stages (three stages in the case of the figure) at appropriate intervals in the vertical direction, are connected by an appropriate number of connecting members 2, and each supporting material 1 connects the divided pieces 3, 4.5 in sequence. It is formed into a hexagonal shape.

The divided pieces 3, 4, 4, 5 are rotatably connected via pins 6.7 at the apex positions of the hexagon, and each free end of the divided pieces 3, 5 is attached to the side of the hexagon. Connecting piece 8 at intermediate position
They are designed to be separably connected via the

One end of the connecting piece 8 is attached to the free end of the split piece 5 with a pin 9, and the connecting piece 3.5 is connected by rotating the connecting piece 8 in the direction of arrow A from the position shown in FIG. This is done by aligning the pin hole IO provided in the connecting piece 8 with the pin hole II provided at the free end of the divided piece 3, and inserting a pin (not shown).

An appropriate number of casters 12 and level jacks 13 are provided on the lowermost supporting material 1.

The weir plate 14 attached to the inside of the shoring material 1 is divided in the same way as the shoring material 1 and moves in the same way as the shoring material 1, and the connection of the divided pieces 3.5 of the shoring material 1 is When it is unraveled and the shoring material 1 is expanded laterally and opened, the weir plate 14 is also expanded and opened, and the formwork is demolded.

Although not shown, when the formwork is closed, the gap between the lower end of the weir plate 14 and the floor is closed by a sealing device to prevent slag.

FIGS. 3 and 4 show the case where the column is divided into four parts by a hexagonal cross-section formwork.

In this case, each shoring member 15 consists of segments 16, 17, 18° 19, each segment having a pin 20 at the apex of the hexagon.
, 21.22.23, and the pin 20
The portions 21 and 22 are rotating parts, and the pin 23 is an opening/closing part.

24 is a pin-shaped fixing pin for retaining the shape;
At the connecting portion of each divided piece, the end of one divided piece is lengthened and attached between this extension and the end of the other divided piece.

The weir plate 25 shown in FIG. 4 is made of plywood 2♂ stretched over a frame made of wooden crosspieces 26 and 27, and 29 is a slag stopper made of neoprene rubber.

(Effect of the invention) Since the column formwork of the present invention is as described above, it is possible to remove the mold and
It is extremely easy to assemble, does not require a specialized formwork worker, and is also excellent in terms of versatility, making it possible to save labor and reduce costs in formwork work for columns with polygonal cross sections. can.

[Brief explanation of the drawing]

The drawings are detailed explanatory diagrams of the present invention, in which Fig. 1 is a plan view of a column with a hexagonal cross section divided into three formworks, Fig. 2 is a front view of the same, and Fig. 3 is a column with a hexagonal cross section. FIG. 4 is a partially enlarged plan view of the case where the formwork is divided into four parts. 1: Shoring material, 2: Connecting material, 3.4, 5: Split piece, 6.7
: Pin, 8: Connection piece, 9: Pin, 10. II: Pin hole, Fig. 4

Claims (1)

[Claims] A formwork for a column with a polygonal cross section, in which the polygonal shoring material surrounding the outside of the shedding board is divided into multiple parts and joined with pins, and the weir board expands laterally with the shoring material and opens. Column formwork characterized by: