JPH0629359Y2 - Cone plug - Google Patents

Description

[Detailed Description of the Invention] (Industrial field of application) The present invention is to remove the mold after the concrete that has been cast into the mold has hardened, remove the cone for fixing the mold, and then insert the cone into the cone hole. Regarding a cone plug used for embedding.

(Prior art and its problems) In concrete placing structure formed by the formwork as described above, particularly in the wall structure, when performing tiled construction or wall finish coating on its outer wall surface or inner wall surface, Mortar wall is formed by applying mortar as a foundation for wall or wall finishing to a mortar wall, and tiles are attached or wall finishing is performed on the mortar wall.

By the way, in a wall structure that is tiled or wall-finished as described above, the tiles and outer wall parts often peel off. In most cases, the mortar wall that supports the tiles and finishing wall is peeled from the wall surface of the wall structure in most cases, because the adhesive force of the mortar wall to the wall structure is weak. It turned out to be

Therefore, the present invention provides a cone plug capable of increasing the adhesive force of the mortar wall to the wall surface of the concrete placing structure by improving the cone plug used for filling the cone hole of the concrete placing structure. It is intended to be provided.

(Means for Solving the Problems) A cone plug of the present invention that can achieve the above object is a plug body fitted to fill a cone hole of a concrete pouring structure to fill the cone hole, and the plug body. And a mortar locking member that extends radially from the plug body in a state of being fastened to the plug body.

(Example) An example will be described with reference to the drawings. In Fig. 1, 1 is a concrete wall structure that is cast between a pair of molds (not shown) on both sides, and 2 is when concrete is cast. Cone fixing separator between molds (not shown)
The cone holes 3 are separators embedded in the concrete wall structure, and the threaded portions 3 a at their ends project into the cone holes 2. Reference numeral 4 denotes a cone plug fitted in each cone hole 2.

Each cone plug 4 has a truncated cone-shaped plug body 5 corresponding to the cone hole 2, and a stainless steel wire as a mortar locking member that is fixed to the plug body 5 and radially extends from the outer end thereof. And an iso-rustless filamentous body 6. still,
As the stainless steel wire, a stainless steel wire, a nylon wire, a cotton thread, or an inorganic fiber such as glass fiber can be used.

As shown in FIGS. 2 to 5, the plug body 5 is pressure-molded with mortar, cement, or a material in which cement is mixed with another substance, and the inside of the plug body 5 has an inner end side. A bottomed cylindrical fastener 7 made of synthetic resin is concentrically integrally embedded, and extends axially through a bottom wall portion 7c of the fastener 7 and an outer end wall portion 5a of the plug body 5. For example, two through holes 8 are provided.
Further, the fixing tool 7 is formed with a hole 7a into which the screw 3a of the separator 3 can be fitted, and a plurality of ridges 7b are formed on the inner peripheral surface of the hole 7a. When the cone plug 4 is driven into and fitted with the cone plug 4, the protrusion 7b is deformed and bites into the screw 3a of the separator 3,
I am trying to prevent it from slipping out.

For example, two linear members 6 having a required length are inserted into the through holes 8 as shown in FIG. 1 and the intermediate portions of these linear members 6 are tied together at the outer end face side of the cone plug 4. In this state, the filaments 6 are extended outward in the shape of vertical and horizontal crosses (radial) as shown in FIG. It should be noted that the length of each filament 6 is 110 cm, for example, when the pitch of the cone holes 2 is 50 cm, considering the knot-fastening portion at the intermediate portion and the joint portions with other filaments at both ends. It only has to be about.

Next, the method of using the above-mentioned cone plug 4 will be described. The cone that was removed from the concrete wall structure 1 cast by a mold and was buried in the wall structure 1 was removed. After removal, the plug body 5 of the cone plug 4 is fitted into the cone hole 2 of each cone as shown in FIG. The extended vertical and horizontal filaments 6 ... Are connected to the corresponding longitudinal and lateral filaments 6 of the other plug bodies 5 adjacent to each other, whereby the concrete wall structure 1 On the wall surface, a kind of lath composed of linear bodies 6 ... Then, a mortar wall 9 containing filaments is formed by applying a mortar for undercoat onto the wall surface of the concrete wall structure 1 from above the lath, that is, the mesh filaments 6 ... Tile 10 is attached as shown in FIG. Alternatively, when the tile 10 is not attached, the finishing mortar is applied on the mortar wall 9 to form the finishing wall. still,
When the plug body 5 is driven into the cone hole 2, the plug body 5 is dipped in a hydraulic urethane resin and fitted into the cone hole 2, so that the urethane resin forms a waterproof film.
The gap between the plug body 5 and the cone hole 2 can be sealed and the through hole 8 can be closed.

As described above, the filaments 6 extending from the plug body 5 of each cone plug 4 are connected to each other to form a kind of reticulated lath on the wall surface of the concrete wall structure 1 and the mortar is applied on it. By forming the mortar wall 9, the mortar is locked to each linear body 6 and the adhesion of the mortar wall 9 to the concrete wall structure 1 is strengthened, and the strength of the mortar wall 9 itself is increased to increase the mortar wall. It is possible to prevent the peeling and damage of No. 9.

In the embodiment shown in FIGS. 1 to 6, the filament body 6 such as stainless steel wire is used as the mortar locking member.
As this mortar locking member, a strip 16 made of a relatively thin stainless steel plate or the like may be used as shown in FIGS. When such a strip 16 is used, as shown in FIG. 7, the fastener 17 made of synthetic resin inside the plug body 15 that constitutes the cone plug 14 is
Is formed into a cylindrical body penetrating in the axial direction, and a ridge 17b is formed on the inner peripheral surface of the hole having a partition wall 17a in the middle. The hole may be opened over the entire length of the hole without providing the partition wall 17a in the middle. Therefore, the inner end side of the hole in the fastener 17 is attached to the separator 3
After fitting the plug main body 15 into the cone hole 2 by fitting it into the threaded portion 3a, when fitting a screw cap 18 made of, for example, a synthetic resin to the outer end side of the hole, several For example, the end portions 16a of the four strips 16 are inserted into the neck portion 18a of the screw cap 18 as shown in FIG. 7 in a state in which the end portions 16a of the strips 16 are overlapped with each other. After extending these four strips 16 in a cross shape as shown in FIG. 8, tighten the screw cap 18 and plug the strips 16 at the head portion 18b. It is fixed to the main body 15. Thus the cone plug 14
One end 16a is fixed to each plug main body 15 of each of the above, and the other end of each strip 16 that is extended in the vertical and horizontal directions is fixed to the plug main body 15 of the other cone plug 14, whereby the concrete wall structure 1 A kind of lattice-shaped lath composed of the strips 16 is formed on the wall surface of, and mortar is applied on the lath to form a mortar wall 19. Also in this case, as in the previous embodiment, the mortar is used for each strip 16
The adhesive force of the mortar wall 19 to the concrete wall structure 1 is strengthened by being locked to the concrete wall structure 1, and the strength of the mortar wall 19 itself is increased, so that the mortar wall 19 can be prevented from being peeled off or damaged. Further, in this case, by providing a plurality of holes 16b in each strip 16 at a required interval, the mortar will enter the holes 16b and fill the strips when the mortar is applied. The locking of the mortar to the becomes more effective. It should be noted that one of the holes 16b may be used to insert the screw cap 18.

In the above embodiment, one end of each strip 16 is fixed to the plug body 15 of one cone plug 14, and the other end is fixed to the plug body 15 of another cone plug 14. As in the case of the linear body 6 of the previous embodiment, the end portion of the strip body 16 extended from the plug body 15 of one cone plug 14 and the plug body 15 of the other cone plug 14 are extended. You may make it join suitably with the edge part of the made strip | belt-shaped body 16 in the intermediate position of both cone plugs 14,14. Further, the strip may be made of synthetic resin such as nylon other than the stainless steel plate.

(Effect of the Invention) Since the cone plug of the present invention is formed by radially extending the mortar locking member from the plug body in a state where the mortar locking member is fixedly attached to the plug body, the concrete pouring structure Mortar that extends from the plug body of each cone plug by fitting the cone plug body into each cone hole that is recessed in the wall surface of the structure when applying tiles or finishing the wall By connecting the locking members to the mortar locking members of the other cone plugs, or by fixing the mortar locking members by the plug bodies of the respective cone plugs, a mesh-like structure or a grid pattern is formed on the wall surface of the concrete structure. It is possible to form a kind of lath in the form of a mortar, and therefore to apply mortar over the mortar locking member forming such a lath. As a result, the mortar is locked by the mortar locking member, the adhesive force of the mortar wall to the concrete wall structure wall surface is strengthened, and the strength of the mortar wall itself is also increased. It is effective in preventing peeling and damage to the mortar wall.

[Brief description of drawings]

FIG. 1 is a vertical sectional view of a concrete pouring structure and a cone plug showing an embodiment of the present invention, FIG. 2 is a perspective view of the cone plug as seen from its inner end side, and FIG. 3 is a cone plug thereof. FIG. 4 is a vertical cross-sectional view of the cone plug, FIG. 5 is a cross-sectional view taken along the line VV of FIG. 4, and FIG. 6 is a vertical cross-sectional view showing a mortar wall and a tiled construction state. FIG. 7 is a vertical sectional view showing another embodiment, and FIG. 8 is a VI of FIG.
FIG. 11 is a sectional view taken along line II-VIII. DESCRIPTION OF SYMBOLS 1 ... Concrete pouring wall structure, 2 ... Cone hole, 3 ... Separator, 4,14 ... Cone plug, 5,15 ... Plug main body, 6 ... Linear body (mortar locking member), 16 ... Strip body ( Mortar locking member), 7, 17 ... Fixing device.

Claims (3)

[Scope of utility model registration request] 1. A plug body fitted into a cone hole of a concrete casting structure so as to fill the cone hole, and radially extended from the plug body while being fixed to the plug body. Cone plug consisting of mortar locking member. 2. The cone plug according to claim 1, wherein the mortar locking member is made of a stainless steel wire or other non-corrosive filament. 3. The cone plug according to claim 1, wherein the mortar locking member is made of a stainless steel plate or other non-corrosive strip.