JPS6339322Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present application relates to a ruler for regulating the thickness of concrete when pouring concrete onto the upper surface of a PC board having a truss to form a floor plate.

When pouring concrete on top of a PC board with a truss, the thickness of the concrete must be correct and constant, but in the past, there was no appropriate regulating device and sometimes construction was done by sight. This was a problem that included many problems in construction.

This application focuses on this point, and makes the thickness of the floor plate constant when constructing the concrete for the floor plate, which makes the construction easy and allows for effective use of materials on site without consuming excess concrete. The present invention provides a concrete construction ruler that allows concrete construction.

The concrete floor plate ruler of the present application includes a barb-shaped member that engages with the upper end reinforcement of the truss bar, a bolt that is screwed onto the barb-shaped member, and the position of the concrete pouring surface that is secured on the bolt. Regulation member 1
2, by stretching a thread on the upper surface of the position regulating member 12 on the concrete pouring surface,
This allows the height of concrete pouring on the floor to be specified. Then, by changing the length of the bolt, it can be applied to floorboards of various thicknesses, or by movably attaching a nut etc. to the threaded part at the top of the bolt and moving this nut, This allows the floor thickness to be appropriately defined. Nuts, cones, etc. are removed after concrete is poured, and the holes created afterwards are backfilled. Bolts are broken off at appropriate points, or they are pulled out from the bottom. It is something that exists.

In addition, the ruler member of the present application is a jaw member having a substantially U-shaped opening and is designed to engage the upper end reinforcement from the side, so that it can be installed and fixed very easily, and it can be easily installed and fixed during construction. It is also extremely easy to move and re-fix the ruler member to make corrections.

To explain the present application based on the drawings, the ruler member 1
The jaw member 2 has a substantially horizontal U-shaped cross section at its lower end, and a nut 5 is attached above or to the side of the jaw member 2 through a welded portion 4. An upright bolt 6 is inserted into the threaded hole of the nut member 5. It is locked.

This upright bolt 6 has threaded portions 8 and 9 at its upper and lower ends.
A locking portion 10, into which a tool such as a spanner is engaged, is formed at an appropriate position in the intermediate portion.

The threaded portion 9 at the top of the bolt 6 is engaged with the screw hole at the bottom of the position regulating member 12 on the concrete pouring surface, and the screw hole at the bottom of the position regulating member 12 on the concrete pouring surface is engaged.
The concrete construction height is regulated by tying a string to the top surface of the concrete or at an appropriate location.

The above-mentioned ruler member 1 is fixed to the truss.
In the PC slab 15, the truss bars are arranged to form the vertices of a triangle.
The lower end bar 17 is embedded in concrete 19, and the upper part of the truss bar 18 and the upper end bar 16 are exposed above it.

The opening 3 of the barb member 2 of the ruler member 1 is then engaged from the side with the upper end reinforcement 16 of the PC plate 15 having the truss. As shown in the figure, when the jaw member is locked at the location where the truss reinforcement and the upper end reinforcement are lined up side by side, the upper surfaces of the three members are approximately flat, so the upper surface of the opening 3 of the jaw member 2 is By engaging with this flat portion, the entire ruler member can be supported and fixed in a stable state, which is of course very convenient.

However, even if it is locked in other places, as shown in Figs. 2 and 3, a screw 5'' is drilled in the upper part of the jaw member 2, and a bolt 6 is screwed into this screw hole 5'' to tighten the upper end. 16 to prevent rotation of the jaw member and bolt.

Furthermore, when the concrete thickness of the floor plate is constant, it is possible to use bolts of a certain length as shown in Figures 1 to 3 above, and it is also possible to set the height by attaching a cone to the top of the bolt. However, when the thickness of the plate is not constant, or when it is desired to use one type of bolt to accommodate various plate thicknesses, a resin bolt 6' is used.

The resin bolt 6' has one or several narrow diameter portions 20 formed at predetermined locations on the bolt body, and can be broken off like a separator used in concrete formwork, so that it can be used for concrete flooring. It is broken off immediately after installation, and the remaining hole is filled in with mortar, etc.

Furthermore, the thickness of the floor plate can be easily determined by screwing the nut 11 into the threaded portion 9 at the top of the resin bolt 6' and moving the nut 11 up and down to determine the thickness of the floor plate.

As mentioned above, by using the ruler member of the present application, concrete can be poured on top of a PC board that has a truss in which protruding reinforcing bars or multiple horizontal bars are provided here and there in the shape of a deck plate. This makes it possible to easily and reliably specify the board thickness when constructing the floor boards on-site.

[Brief explanation of the drawing]

Fig. 1 shows an embodiment of the present application, and shows a cross-sectional view schematically showing a ruler member fixed to a reinforcing bar;
4 are sectional views showing other embodiments, FIG. 5 is an enlarged view of the attachment portion, and FIG. 6 is a side view of the attachment portion. In the figure, 1... Ruler, 2... Jaw member, 3... Opening, 4... Welding part, 5... Nut, 6... Bolt, 7... Rod-shaped part, 8... Bottom screw, 9... ... Upper screw, 10 ... Locking part, 11 Upper nut, 12 ... Concrete pouring surface position regulating member, 13, 14 ...
Hole, 15... PC version with truss, 16... Upper end reinforcement, 17... Lower end reinforcement, 18... Truss reinforcement, 19
...Concrete, 20...Small diameter part.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A jaw member having a horizontal opening at the lower end, a bolt is planted through a nut etc. fixed to the jaw member, and concrete is poured at the upper end of the bolt. The height of the position regulating member on the concrete pouring surface is adjustable so that the position regulating member on the concrete pouring surface can be fixed and the upper surface of the position regulating member on the concrete pouring surface can be defined to the thickness of the concrete floor plate; A ruler for concrete construction in a PC version having a truss, characterized in that the jaw member is fixed on the upper reinforcement. (2) The ruler according to item 1, wherein the bolt has threaded portions formed at the top and bottom. (3) The ruler according to item 1, wherein the bolt is made of synthetic resin and has small diameter portions in places so that it can be broken off. (4) The ruler according to item 1, wherein the barb-shaped member is locked to a fixed part of the truss muscle of the upper end reinforcement. (5) The ruler according to paragraph 1, in which a nut is welded and fixed to the top of the jaw-shaped member. (6) The ruler according to item 1, wherein a nut is fixed to the butt part of the jaw-shaped member on the opposite side from the opening.