JPS6172146A - Fixing of weir plate and reinforcing material for disposableframe - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to labor saving in formwork assembly work during concrete pouring.

In recent years, improvements in the quality of concrete, fiber-reinforced cement boards, ferro-cement boards, IT4 reinforced resin i (FR
P) With the advent of various durable products such as resin concrete boards, weir boards for burial waste frames are being used in place of repurposed ν frames. These weir plates are generally thin, with a thickness of 2011I11 or less, in order to reduce weight and be economical.

Because of this, there is a risk that the weir plate may deform during concrete pouring, so it is necessary to temporarily fix it using wooden, steel, or other reinforcing or stiffening materials with a certain level of rigidity.

[Prior art 1] In the case of a combination of wooden sheath boards and wooden stiffeners, or wooden weir boards and steel stiffeners, as in conventional converted formwork, the weir boards can be easily nailed or drilled. This made it easy to fix the stiffener to the weir.

[Problem to be solved by the invention 1 However, recently developed weir plates used in so-called sakai frames, which are joined and integrated with structural members and become part of the structural members, are similar to the sakai frames. Because they are integrated with structural members and are made of durable materials, it is not easy to nail or drill holes, making it difficult to temporarily attach the stiffeners to the weir. There is also a well-known mechanical connection method that uses bolts or hooks after drilling holes in the weir, but in this case care must be taken not to close the holes drilled in the weir when removing the stiffener.

[Means for Solving the Problem] Therefore, the inventor of the present invention has invented a method of fixing the weir plate and the stiffener using magnetic force, which can be easily attached and detached and does not leave any traces.

In other words, a plurality of steel plates are placed on the weir plate, and a corresponding number of strong permanent...6 or electric magnetic force generators are fixed to the stiffener, and the magnetic force is used to fix the steel plate. It is.

``Example'' An appropriate number of steel plates 2 are buried on one side of the weir plate 1 for a waste frame so that their surfaces are exposed (four pieces are indicated by dotted lines in the figure).

The stiffener 3 shown below is made of a non-ferrous metal that is difficult to magnetize, such as an aluminum alloy, and has a magnetic force generator 4 fixed at a position corresponding to the steel plate 2 placed on the sheath plate 1. be. This may be arranged so that the permanent magnet can change direction.

In this way, the weir plate 1 is fixed and supported by magnetic force, and deformation of the weir plate 1 is prevented.

In this embodiment, the auxiliary material 3 has a frame shape with ribs 5 around the periphery and ribs 6 also formed in the center.

Then, after pouring the concrete in place, the magnetic force is released,
Separate the supplementary material 3.

In the case of permanent magnets, the fixation between the weir plate 1 and the auxiliary member 3 is released by rotating the magnet and changing the direction of the magnetic force.

[Effects of the Invention] In this way, according to the present invention, even if the weir plate is durable or is generally formed from an inorganic or organic composite material, magnetic Fixation and support using the auxiliary material 3 can be easily performed by simply arranging the plates.

[Brief explanation of drawings]

The figure shows the weir plate and stiffener separated. 1...Weir plate 2...Steel plate 3...
... Stiffener 4 ... Magnetic force generator (magnet) 5.6 ... Rib patent applicant Shin Iwasa
Sachi Matsu, Patent Attorney, Patent Attorney 1) Ministry Engraving of the drawings (no changes in content) Procedure 1] iE (Method) April 91, 1985]

Claims (1)

[Claims] In addition to arranging the required number of steel plates on the weir plate, the weir plate is reinforced by magnetic force using a magnetic force generator or a stiffening material insensitive to magnetic force with a magnet attached at a position corresponding to the steel plate. A method of supporting a weir plate that is fixed and supported by a rigid member and releases the fixation between the weir plate and the stiffener by eliminating the magnetic force or changing the magnetic pole.