JPH0236843Y2 - - Google Patents

Description

[Detailed explanation of the invention] [Technical field of the invention] This invention is a method for measuring corners of concrete structures.
In detail, the present invention relates to corner facings of face timbers or joint bars that are integrally molded from synthetic resin such as vinyl chloride resin or polyester resin, or synthetic rubber.

[Prior art of invention]

Generally, when forming concrete structures,
Chamfers are attached to the concrete formwork at the site by means such as fixing or gluing, and the edges or joints of the concrete structure are formed by the chamfers.

However, in order to attach chamfers to concrete formwork on site, it is necessary to cut or cut the chamfers to match the dimensions and shape of the formwork.
The work required for this purpose was complicated, resulting in a decrease in construction efficiency, and was uneven and inaccurate, resulting in a decrease in quality.

These difficulties are especially noticeable when forming corners (extruded or inward corners) of concrete structures, and countermeasures are desperately needed.

[Purpose of invention]

It is an object of the present invention to provide a method for covering corners of concrete structures that can overcome the above-mentioned difficulties.

[Summary of the idea]

The feature of this invention is that when chamfering a corner of a concrete structure such as a facing board or a joint bar, a chamfered surface of the adjacent corner of the concrete structure is formed on the main body, and the end of this chamfered surface is A triangular chamfer is formed at the corner of a concrete structure, and a contact surface for sliding with a long chamfer is continuously formed on this triangular chamfer. By attaching it to the formwork and placing a long chamfer continuously to the corner chamfer and pouring concrete, it is possible to form a beautiful corner chamfer. The surface allows for easy position adjustment and attachment of the corner section and long object sections.

[Example of idea]

In Figures 1 to 4, a triangular chamfered part 2 at the corner of the concrete structure is continuously formed at the end of the short strip main body 1, and a long chamfered part 2 is formed on one side of the chamfered part 2. A rod-shaped surface covering 5 that continuously forms the contact surface 4 of the rod-shaped surface covering 3 and is arranged orthogonally to the rod-shaped surface covering 3.
A sliding contact surface 6 is continuously formed on the chamfered portion 2. In this case, the short piece-like main body 1 is shown to have an isosceles triangular cross-sectional shape, and the triangular planar chamfered portion 2 is formed at the end of the chamfered surface 1a on the base thereof, α=
The chamfered portion 2 and the contact surface 4 are continuously formed at an angle of 125 degrees, and the chamfered portion 2 and the contact surface 4 are formed continuously at an angle of β=135 degrees.
In this case, the sliding abutment surface 6 is formed on the left side and the abutment surface 4 is formed on the right side, but the reverse may be used. Then, as shown in Fig. 5, a rod-shaped facing material 8 is fixed to the corner of the formwork 7 in the vertical direction, and then, using this facing material 8 as a guide, the corner facing material a of the present invention is oriented in the horizontal direction. The sliding abutment surface 6 is brought into contact with the chamfer a to position the height of the chamfer a while sliding in the vertical direction and fix it. Or the 6th
As shown in Figures A and B, after fixing the chamfer a in the vertical direction to the corner of the formwork 7, the rod-shaped chamfer 5 in the horizontal direction is brought into contact with the sliding abutment surface 6, and the length is adjusted while sliding. Adjust. After fixing the chamfer a in this way, bar-shaped chamfers 3, 5, and 8 are successively arranged on three sides as shown in Fig. 7, and concrete is poured to form a triangular chamfer. Beautiful corners of the same shape as 2 are evenly formed. Although the above is for the case of face wood, the same applies to the case of joint bar.
Further, although the inner surface is shown as having a flat surface, it can be similarly applied to a curved surface, a stepped surface, etc. In addition, although the rod-shaped surface interviews are shown as being at 90 degrees to each other, it goes without saying that the angles may change as appropriate depending on the square concrete structure. In the figure, 9 is a fastening member, and 9a is a hole.

Furthermore, Fig. 8 shows a chamfer b in which a pair of abutment surfaces 4, 4a are formed on both sides of a triangular planar chamfered part 2, and Fig. 9 shows bar-shaped chamfers 3, 8, and 5 continuous on three sides. It shows the state in which it is placed and ready for concrete to be poured. In this case, sliding adjustment is not possible, but by simply fixing the chamfer b to the formwork 7 and pouring concrete, a clean corner having the same shape as the triangular chamfer 2 can be formed.

[Effect of idea]

As mentioned above, when chamfering a corner of a concrete structure such as a facing board or joint bar, the present invention forms a chamfered surface of the adjacent corner of the concrete structure on the main body, and also forms a chamfered surface on the edge of this chamfered surface. A triangular chamfer is formed at the corner of a concrete structure, and a contact surface for sliding with a long chamfer is continuously formed on this triangular chamfer. By simply attaching it to the corners of concrete formwork on site, accurate, uniform, and clean corner chamfers of concrete structures are formed, improving work efficiency and quality, and eliminating wasted material. . In addition, the sliding contact surface allows sliding positioning of the chamfer, which improves workability.Furthermore, since the length of the bar-shaped chamfer can be adjusted by the key width A in Figure 6, it is possible to use the bar-shaped chamfer accordingly. The effect is great, as it can be used without waste.

[Brief explanation of drawings]

Figures 1 and 2 are perspective views of the interview method of the present invention;
The figure is a cross-sectional view taken along line A-A in Figure 2, Figure 4 is a cross-sectional view taken along line B-B in Figure 1, Figures 5 and 6 are perspective views showing the operating state, and Figure 7 is FIG. 8 is a perspective view showing the state of use; FIG. 8 is a perspective view of a chamfer of another embodiment; FIG.
The figure is a perspective view showing the state of use. 1... Main body, 1a... Chamfered surface, 2... Triangular chamfered portion, 3, 5, 8... Chamfered material, 4... Contact surface,
6...Sliding contact surface.

Claims (1)

[Scope of utility model registration request] When chamfering a corner of a concrete structure such as a facing board or a joint bar, a chamfered surface of the adjacent corner of the concrete structure is formed on the main body, and the corner of the concrete structure is formed at the end of this chamfered surface. Corner chamfering of a concrete structure, characterized in that a triangular chamfered part is formed at the corner, and a contact surface for sliding with a long chamfering material is continuously formed on the triangular chamfered part. .