JP3121298U - Water stop cone for concrete formwork - Google Patents

Abstract

[PROBLEMS] To provide a water stop cone that can completely prevent water leakage by embedding a part of the packing in the main body of a cone, because a conventional water stop cone with packing peels off or forms a gap. To do.
SOLUTION: An inverted hat is attached to a large-diameter side end portion of the cone body 2 in which a joint metal fitting 5 is incorporated at the center of a cone body 2 attached to a separator 8 of a concrete 9 formwork. The water-stopping cone 1 is formed by embedding a protruding piece 7 provided on the inner side of the shaped packing 6.
[Selection] Figure 1

Description

  The present invention completely eliminates water leakage due to rusting of the joint between the concrete and the cone and the joint fitting embedded in the main body of the cone when the concrete is tightened in the concrete. It relates to a functional water stop cone that can be prevented.

Conventionally, an embedded type cone used for forming a concrete mold has a natural rubber, a synthetic rubber, or a soft resin (hereinafter referred to as packing) on the large-diameter side end or peripheral portion of the cone body. There is a type that can prevent water leakage from the inside of the concrete by adhering a disk-shaped packing made of a material or by providing a packing on the outer periphery of the cone body. Also, by forming a cone with a cylindrical packing on the inner screw located in the cone, the cone prevents the inner screw from rusting and leakage due to moisture from inside the concrete, and its There is a usage technique. (For example, see Patent Document 1)
JP 2001-336284 A (page 3-4, FIG. 2)

  There are buried type cones for fastening concrete molds as described above, but the type in which packing is adhered to the large diameter side end of the cone body is part of the packing during transportation or when forming the formwork. When the film is peeled off or embedded, the adhesive strength is weakened by moisture in the concrete. Further, the type in which the packing is provided around the cone has the same drawbacks.

  Next, the cone disclosed in Japanese Patent Application Laid-Open No. 2001-336284 is a cone in which a ring-shaped packing is attached to the inner end portion of an internal screw member that can be extracted in the center hole of the cone body. When forming the mold, the inner screw member of the cone is attached to the separator, and after the concrete is placed, the inner screw is removed and the closing plug is attached.

  However, the inner screw member has no partition and a ring-shaped packing is located between the separator and the cone. However, since the packing is not formed integrally with the cone, water leakage is completely prevented. It was a cone technology with inconveniences and disadvantages such as inability to obtain reliability.

  In order to eliminate the inconveniences and disadvantages as described above, the present invention provides the above-described coating in which a joint fitting is embedded in the center of a cone body attached to a separator of a concrete mold. The water-stopping cone is formed by embedding and forming an inner protrusion piece of an inverted hat-shaped packing at the large-diameter side end of the main body, thereby preventing peeling and gaps and effectively preventing water leakage. The water stop cone can be prevented.

  In claim 2, sealing is carried out with a doughnut-shaped adhesive seal so as to span the packing, joint fitting and cone body located at the large-diameter end of the cone body. By doing so, it is set as the water stop cone which can prevent the water leakage from any junction part completely.

  The water stop cone according to the first embodiment of the present invention includes a joint fitting that forms a screw hole with a partition wall in the cone body, and an inverted hat-like shape on the large diameter side end of the cone body. Since the inner projecting piece of the packing is embedded and formed integrally, a water stop cone that can prevent water leakage by eliminating the factor that the packing peels off from the cone body or forms a gap is formed, and the packing is -It is a water stop cone that can be made at a low cost for integral molding because it matches the surface of the large-diameter end of the main body.

  In addition, the basic structure of the second embodiment type is the same as the first embodiment type, and since part of the packing is embedded in the cone body, there is no cause of peeling or water leakage, but it has elasticity. If the part where the packing is not embedded in the cone body is pulled, a gap will be formed. However, in order to prevent water leakage due to rusting of the joint bracket, the packing, joint bracket and cone body located at the end on the large diameter side should be spanned. In addition, since it is adhesively sealed with a seal, it is possible to completely prevent gaps as well as cause water leakage from any joint part of any member. A simple water stop cone can be provided.

  In order to completely prevent water leakage from the joint with the cone embedded in the concrete, the inner protrusion piece of the inverted hat-shaped packing is embedded at the large-diameter end of the cone body. The water stop cone is formed integrally.

  The water stop cone of Example 1 of this invention is demonstrated with the perspective view shown in FIG. 1, the longitudinal cross-sectional view shown in FIG. 2, and the construction example reference drawing shown in FIG. The water stop cone 1 according to the first embodiment is formed by integrating a joint fitting 5 having a partition wall 4 in the middle of the screw hole 3 at the center of a substantially truncated cone-shaped cone body 2 made of mortar. The cone main body 2 is formed, and at the same time, the cone main body 2 is provided at the large diameter side end portion inside the packing 6 having a hat-like cross-sectional shape made of a rubber material or a soft synthetic resin material. The water stop cone 1 for the concrete form is formed by embedding and integrally forming the protruding piece 7 in the peripheral portion of the large diameter side of the cone body 2 described above.

  As shown in FIG. 3, the water stop cone 1 according to the embodiment 1 is attached to the separator 8 at the time of forming the mold and is embedded in the joint body 5 of the cone body 2 embedded in the concrete 9. A cap 10 is attached to the screw hole 3, and the joint metal fitting 5 of the still water cone 1 embedded in the concrete 9 has a partition wall 4, and at the large-diameter side end of the cone body 2, Since the protruding piece 7 provided inside the inverted hat-shaped packing 6 is embedded in the cone body 2, it eliminates peeling or forming a gap as in the type of fitting or fitting into the recess, Since the packing 6 is located on the same side as the surface of the cone body 2, the water stop cone 1 is formed which can be formed at low cost.

The water stop cone according to the second embodiment of the present invention will be described with reference to a perspective view partially separated as shown in FIG. 4, a longitudinal sectional view as shown in FIG. 5, and a construction example reference diagram as shown in FIG.
The basic structure of the water stop cone 1 of the second embodiment is similar to that of the first embodiment, in which the joint metal fitting 5 is embedded in the cone main body 2, and the large-diameter side end has an inverted hat shape. The projecting piece 7 of the packing 6 is embedded in the cone main body 2, and the doughnut is further extended over the packing 6, the cone main body 2, and the joint metal fitting 5 at the end on the large diameter side. The water-stopping cone 1 is formed by sticking and sealing a seal 12 with an adhesive 11.

  The water stop cone 1 according to the second embodiment is different from the first embodiment in that a protruding piece 7 provided on the inner side of the packing 6 is embedded in the cone main body 2 at the large diameter side end of the cone main body 2. In addition, at the large diameter side end, a seal 12 with a doughnut plate-like adhesive 11 is packed 6, the cone body 2, and the joint bracket 5 are sealed 12. Since each of the joint portions is completely sealed with the seal 12, the water stop cone 1 is formed which can completely prevent the gaps as well as the peeling factor.

  The planar shape of the packing 6 attached to the water stop cone 1 in the present invention is circular, but may be oval or square. The packing is preferably a rubber material or a synthetic soft resin material, but other than this, a metal material may be used, and neither is particularly limited.

It is a perspective view which shows the water stop cone of Example 1 of this invention. It is a longitudinal cross-sectional view which shows the water stop cone of Example 1. FIG. It is a construction example reference drawing which shows the use condition of the water stop cone of Example 1. It is the perspective view which peeled a part which shows the water stop cone of Example 2. FIG. It is a longitudinal cross-sectional view which shows the water stop cone of Example 2. FIG. It is a construction example reference drawing which shows the use condition of the water stop cone of Example 2.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Water stop cone 2 Cone main body 3 Screw hole 4 Partition wall 5 Joint metal fitting 6 Packing 7 Projection piece 8 Separator 9 Concrete 10 Cap 11 Adhesive 12 Seal

Claims (2)

  An embedded type cone attached to a separator of a concrete formwork, wherein a joint metal fitting is embedded in the center of the cone body, and an end of the inverted hat is formed on the large diameter side end of the cone body. A water stop cone for a concrete mold, characterized in that a protruding piece provided on the inner side of the packing is embedded in the aforementioned cone body and integrally formed.   A packing, a joint fitting, and a cone body positioned at the large-diameter end of the cone body, and sealed with a donut-shaped adhesive seal. A water stop cone for the concrete form described in 1.

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