JPH0523712Y2 - - Google Patents

Description

[Detailed description of the invention] A. Purpose of the invention A. Industrial application field This invention relates to the structure of the cone part of a concrete formwork fastening fixture.

B. Conventional techniques and their problems Conventionally, in concrete frame work, after the formwork is removed, so-called cone holes, which are the remains of the cones used, are inevitably formed.

A common method for such cone holes is to treat them with mortar, waterproof mortar, or the like.

However, with this method, groundwater, rainwater, etc. infiltrate into the structure due to shrinkage or cracks in the mortar, causing rust to form on the separator, causing the rust to flow out or chemical substances to precipitate.
There were problems such as having a negative effect on the building structure and further deteriorating its aesthetic appearance.

B. Structure of the device A. Means for solving the problem The present application attempts to solve the above-mentioned problem with the following structure.

That is, the present invention is composed of a cone body and a water stop ring, the cone body is composed of a cone body and a pivot foot, and the cone body has a truncated conical base and a cone body connected to the upper surface of the base. a truncated cone-shaped upper part having a diameter shorter than that of the cone body, a groove having a substantially square cross section is carved along the lower end of the upper part, and a pivot foot is provided at the axis of the cone body. The water stop ring is fixed by penetrating, and the water stop ring has a disc-shaped edge that comes into contact with the upper surface of the base on the outer edge of the lower end of the cylindrical body that fits into the upper part of the cone main body. A cone having a water-stopping effect, in which a short cylindrical body that fits into the base is connected to the lower surface, and protrusions are provided on the upper end of the cylindrical body, the outer periphery of the rim, and the lower surface of the rim. It is.

B. Embodiment of the invention 1 is a cone having a water-stop function according to the present invention, which is composed of a cone body 2 and a water-stop ring 5.

The cone main body 2 consists of a cone body 3 and a pivot foot 4.

Therefore, this cone body 3 is placed on the upper surface of a truncated conical base 3A having a low height, and has a truncated conical upper part 3B having a diameter shorter than the diameter of the base 3A and a height higher than the height of the base 3A. are integrally arranged in series, and a groove 3C having a substantially square-shaped cross section is carved on the upper surface of the base portion 3A along the lower end of the upper portion 3B.

A shaft foot 4 is fixedly inserted into the shaft center of the cone body 3 from the bottom of the cone body 3 toward the top surface, and a threaded portion 7A of a known separator 7 is screwed onto the upper end of the shaft foot 4. A screw hole 4A to be fitted is opened, and a threaded portion 4B to be screwed into a screw hole 6A of a known form tie (trademark) 6 is carved below the pivot foot 4.

The water stop ring 5 is made of a synthetic resin material, and the upper part 3B of the cone body 3
A groove 5B having a substantially square cross section and fitting into the groove 3C of the cone body from above is connected to the outer periphery of the lower end of the truncated conical cylinder 5A, which fits into the groove 3C of the cone body from above.
A disk body 5C that abuts the upper surface of the base 3A of the cone body and extends outward is connected to the upper outer edge of the cone body, and a disk body 5C that extends outwardly is connected to the lower surface of the base 3A of the cone body. A short cylindrical body 5 in the shape of a truncated cone that fits on the outer peripheral surface
A protrusion 5E is provided on the outer periphery of the upper end of the cylinder body 5A, and a protrusion 5F is provided on the outer circumference of the disk body 5C, and a protrusion 5F is provided on the outer circumference of the disk body 5C. A protrusion 5G that protrudes downward is provided at an intermediate position on the lower surface of.

C Effect I will explain it along with the effects.

C. Effects of the invention A. Referring to FIG. 8, the separator 7 of the present invention is attached to both ends of the separator 7 placed in the formwork 9 which is erected in a pair of left and right pairs. (The one shown is attached to the left end of the separator.) After the concrete 10 is poured and the concrete hardens, remove the Form Tie (trademark) and pivot foot as shown in Figure 9. Separator and water stop ring 5 are cone trace hole 11
will remain in the

Thereafter, as shown in FIG. 10, a cone hole treatment agent 12 such as known water stop mortar or Corn Bond (trademark) is filled.

(b) In particular, in the case of the present application, the water stop ring 5 is formed with a disc body 5C that projects outward, and
The cylinder body 5A has a protrusion 5E, and the disc body has a protrusion 5E.
Since F and 5G are formed, the intrusion of groundwater and rainwater can be more reliably prevented, and the conventional problems pointed out at the beginning can be solved.

[Brief explanation of drawings]

Figure 1 is a front view of the cone body, Figure 2 is a plan view, Figure 3 is a vertical cross-sectional view, Figure 4 is a front view of the water stop ring, Figure 5 is a plan view, and Figure 6 is an enlarged vertical cross-section. figure,
Fig. 7 is a front view of the present application, Fig. 8, Fig. 9,
FIG. 10 is a sectional view showing the state of use in order. 1... Cone having a water-stopping effect, 2... Cone body, 5... Water-stopping ring.

Claims (1)

[Claims for Utility Model Registration] A cone having a water-stop function, characterized by comprising a cone body and a water-stop ring that meet the following conditions. (a) The cone body is composed of a cone body and an axis foot, and the cone body is composed of a truncated conical base and a truncated conical upper part having a diameter shorter than that of the cone body, which is connected to the upper surface of the base. A groove having a substantially square cross section is carved along the periphery of the lower end of the upper part, and a shaft foot is inserted and fixed to the axis of the cone body. (b) The water stop ring has a disc-shaped edge that comes into contact with the upper surface of the base on the outer edge of the lower end of the cylindrical body that fits into the upper part of the cone body, and the lower surface of the edge has the A short cylindrical body that fits into the base is arranged in a row, and protrusions are provided on the upper end of the cylindrical body, the outer periphery of the edge, and the lower surface of the edge.