JP4795924B2 - Separator plug device - Google Patents

Description

  The present invention relates to a separator plug device.

Conventionally, as a plug device for a separator, a fixing nut having a cylindrical female thread portion, a cylindrical cone made of ceramics that is fitted to the distal end side of the fixing nut and is put into concrete and killed, A convex part for stopping the rubber ring formed in the cylindrical part, a water stop cock fitted to the cylindrical part of the cone, and a rubber ring fitted and arranged on the outer periphery of the tip part of the water stop cock A plug device for a separator comprising: a base end portion of the water stop cock having a slightly thicker outer periphery than a tip end portion thereof, and inserting the water stop cock into a cylindrical portion of the cone, The fitted rubber ring hits the convex part for stopping the rubber ring and moves to the base end side of the stop cock, and the base part of the stop cock and the tubular part are moved by the moved rubber ring. Is configured so that the annular gap between Are (e.g., see Patent Document 1.).
Japanese Patent Laid-Open No. 9-279841

  However, the conventional separator plug device has the following problems because many end faces of the ceramic cylindrical cone remain exposed on the finished concrete surface.

  In other words, the surface of the concrete turns black when exposed to the natural environment such as rain and dust, whereas ceramics hardly change color, so the end face of the ceramic cone has a color pattern on the surface of the discolored concrete. Appears. Since the appearance of such a pattern was not intended, an improvement plan was desired.

  Further, since the length of the cone corresponding to the cover thickness is necessary, there is a problem that the material cost is high.

  The problem to be solved by the present invention is to provide a plug device for a separator that can reduce the material cost and does not expose the end face of the cone on the concrete finish surface.

  In order to solve the above-mentioned problem, a separator plug device according to claim 1 includes a fixing nut having a female screw portion, a cylindrical cone that is fitted to the distal end side of the fixing nut and fits into concrete, and A shaft foot bolt that is inserted into the axial hole of the cone from the tip end side of the cone and is detachably coupled to the female thread portion of the fixing nut; and an outer peripheral surface of the shaft foot bolt through which the shaft foot bolt can be inserted. A cylindrical opening having a shaft hole whose diameter is larger than the outer diameter of the shaft foot bolt and an outer diameter larger than the shaft hole of the cone so that a predetermined annular gap is formed between them. An annular projection having an outer diameter that can be inserted into the axial hole of the cone, and a concrete mold plate support having a contact end surface that contacts the concrete mold plate at a tip thereof. The shaft foot bolt is attached to the tip of the shaft foot bolt. It was a means, characterized in that the tool-engaging portion rotatable operating the door is formed.

  The separator plug device according to claim 2 is the separator plug device according to claim 1, wherein the contact end surface of the concrete mold plate support is on the front end surface and the outer periphery of the concrete mold plate support. It is constituted by an end face of the protruding thin locking flange portion.

  A separator plug device according to a third aspect is the separator plug device according to the first or second aspect, wherein an internal thread portion is formed at least on the tip edge side of the shaft hole in the concrete form plate support. It was set as the characteristic feature.

  The separator plug device according to claim 4 is the separator plug device according to any one of claims 1 to 3, wherein the concrete form plate support is made of a synthetic resin. It was a means to do.

  A separator plug device according to a fifth aspect is the separator plug device according to the fourth aspect, wherein a chamfered taper portion is formed at a tip opening edge portion of the shaft center hole in the concrete form plate support. It was set as the characteristic feature.

  The separator plug device according to claim 6 is the separator plug device according to any one of claims 1 to 5, wherein the diameter increases as the outer peripheral surface of the concrete formwork plate support heads toward the tip side. It was formed on the taper surface.

  The separator plug device according to claim 7 is the separator plug device according to any one of claims 1 to 6, wherein an outer peripheral surface of a locking flange portion of the concrete form plate support is in the cone direction. The taper surface is inclined toward the surface.

  The separator plug device according to claim 8 is the separator plug device according to any one of claims 1 to 7, wherein the cone is made of ceramics.

  The separator plug device according to claim 9 is the separator plug device according to any one of claims 1 to 8, wherein a water stop cock capable of stopping water by being press-fitted into the axial hole of the cone. It was set as the means characterized by being provided.

In the separator plug device according to claim 1, as described above, the base end is a cylindrical shape having a shaft center hole larger than the outer diameter of the shaft foot bolt and an outer diameter larger than the shaft center hole of the cone. An annular protrusion having an outer diameter that can be inserted into the axial hole of the cone is provided at the opening edge, and a concrete mold plate support having a contact end surface that comes into contact with the concrete mold plate is provided at the tip thereof. After the concrete has hardened and the concrete form plate has been removed, a tool such as a spanner is hung on the tool hook formed at the tip of the shaft foot bolt, and the shaft foot bolt is removed from the fixing nut. By filling the hole after extracting the plate support with mortar, the cone is embedded in the concrete, so that the end face of the cone is not exposed to the concrete finish surface.
Therefore, it becomes possible to prevent the end face of the cone from appearing as a color pattern on the surface of the concrete that has turned black due to exposure to a natural environment such as rain or dust.

Further, the separator plug device is composed of a cylindrical cone to be fitted into the concrete and a concrete form plate support that is pulled out after the concrete is hardened, and a shaft is formed together with the concrete form support. By forming a tool hook at the tip of the shaft foot bolt in order to extract the foot bolt, it becomes possible to reduce the external shape of the concrete form plate support itself, so the concrete form plate support was removed. The diameter of the later trace hole can be reduced to the minimum.
Therefore, the amount of mortar formed on the concrete finish surface and embedded in the trace hole becomes very small, so that the trace hole processing (finishing days) can be greatly shortened, and the trace hole is formed from the concrete finish surface. It will be inconspicuous and you can have a more beautiful finish.

  In addition, since the axial hole of the concrete mold plate support is formed to have a larger diameter than the outer diameter of the shaft foot bolt so that a predetermined annular gap is formed between the outer periphery of the shaft foot bolt, the cone Due to the variation in the dimensional accuracy of the shaft center hole, the shaft foot bolts of the concrete form plate support It is possible to prevent pressure contact with the inner peripheral surface of the shaft center hole, thereby making it difficult to remove the shaft foot bolt.

  In the separator plug device according to claim 2, as described above, the contact end surface of the concrete mold plate support is a thin locking flange portion protruding from the front end surface of the concrete mold plate support and the outer periphery. Since the outer shape of the concrete formwork plate support body can be reduced by comprising the end face, the amount of mortar embedded in the trace hole formed after the concrete formwork plate support is extracted can be further reduced. Become.

  In the separator plug device according to claim 3, as described above, the internal thread portion is formed on at least the front end edge side of the shaft hole in the concrete form plate support, and the external thread is screwed into the external thread portion. By combining, the concrete form plate support can be easily pulled out.

  In the separator plug device according to claim 4, as described above, the concrete form plate support is made of a synthetic resin, so that a bolt is screwed into the axial hole of the concrete form plate support, and the concrete form plate support is made of concrete. The formwork plate support can be easily pulled out.

  In the separator plug device according to claim 5, as described above, the chamfered taper portion is formed at the edge of the opening of the axial center hole of the concrete mold plate support, whereby the concrete mold plate support. The initial screwing of the bolt into the axial hole of the shaft becomes easy.

  In the plug device for a separator according to claim 6, as described above, the outer peripheral surface of the concrete mold plate support is formed into a tapered surface that increases in diameter toward the tip side, thereby supporting the concrete mold plate support. The body can be easily extracted.

  In the separator plug device according to claim 7, as described above, the outer peripheral surface of the locking flange portion in the concrete form plate support is formed into a tapered surface inclined toward the cone direction. The concrete reaches the corner at the time of placing, and the inner peripheral wall of the shallow depression formed on the finished surface by the locking flange portion after the concrete form plate support is pulled out can be finished finely.

  In the plug device for a separator according to claim 8, as described above, the cone is made of ceramics which is a silicate mineral similar to cement, so that it has excellent familiarity and adhesion to concrete and is salt-resistant. -Excellent corrosion resistance, which is advantageous in terms of durability and prevention of salt damage. And especially in this case, since the concrete form plate support is provided, it is possible to take charge of part of the cover thickness, so that the length of the thick cone can be shortened accordingly, The material cost can be reduced.

  In the separator plug device according to claim 9, as described above, salt damage can be prevented by providing a water stop cock that can be pressed into the axial hole of the cone to stop water. .

  Embodiments of the present invention will be described below with reference to the drawings.

  The separator plug device of this embodiment corresponds to the inventions described in claims 1 and 3 to 9.

  First, the separator plug device of this embodiment will be described with reference to the drawings.

  1 is a perspective view showing a separator plug device of this embodiment, FIG. 2 is a perspective view showing a water stop cock in the separator plug device of the embodiment, FIG. 3 is a cross-sectional view showing the separator plug device of the embodiment, FIG. 4 is a cross-sectional view showing a usage state of the separator plug device of the embodiment, and FIG. 5 is a cross-sectional view showing a finishing process after the concrete is placed.

  This separator plug device includes a fixing nut 1, a cylindrical cone 2, a concrete form plate support 3, a shaft foot bolt 4, a separator 5, and a stop cock 6 as main components. ing.

  More specifically, the fixing nut 1 serves to connect the cone 2 to both ends of the separator 5 as shown in FIG. 4, and as shown in FIG. A female screw part 11 for screwing and connecting the male screw parts 51 at both ends of the separator 5 and a female screw part 12 for screwing and connecting the proximal male screw part 41 of the shaft foot bolt 4 are formed independently at both ends of the shaft hole. Yes. A locking flange portion 13 is formed so as to protrude from the outer periphery of the middle portion of the fixing nut 1.

  The cone 2 is buried in the concrete 7 as shown in FIG. 5 and forms a part of the cover k of the concrete 7 as shown in FIGS. And is formed in a cylindrical shape having a shaft center hole 21, is fitted to the distal end side of the fixing nut 1, and is positioned and fixed in a state where its end surface is in contact with and locked to the locking flange portion 13.

  The concrete form plate support 3 is integrally formed of a synthetic resin such as ABS, and the shaft foot bolt 4 can be inserted therethrough, and a predetermined annular gap h is formed between the shaft foot bolt 4 and the outer peripheral surface thereof. It is formed in a cylindrical shape having an axial center hole 31 larger in diameter than the outer diameter of the shaft foot bolt 4 and an outer diameter larger in diameter than the axial center hole 21 of the cone 2, and the cone 2 is formed at the proximal end opening edge thereof. An annular projection 33 having an outer diameter that can be inserted into the axial hole 21 is provided, and a thin locking flange portion 32 that abuts against the concrete mold plate 8 is integrally formed on the outer periphery of the tip portion. .

  And the outer peripheral surface of this latching flange part 32 is formed in the taper surface 32a which inclines toward the cone 2 direction.

  Further, a chamfered taper portion 31 a is formed at the end opening edge of the axial hole 31 in the concrete mold plate support 3.

  Further, the concrete mold plate support 3 is formed in a tapered surface whose diameter increases as it goes to the tip side.

  As shown in FIG. 4, the shaft foot bolt 4 serves to fix the concrete mold plate 8 abutted and locked to the locking flange portion 32 of the concrete mold plate support 3. As shown in FIG. 3, a male screw portion 41 formed at the base end of the cone 2 is inserted into the axial hole 21 from the distal end side of the cone 2 and is screwed into and connected to the female screw portion 12 of the fixing nut 1. .

  Further, as shown in FIG. 4, a male screw part for screwing the home tie 9 and sandwiching and fixing the concrete form plate support 3 between the locking flange part 32 is provided on the tip end side of the shaft foot bolt 4. As shown in FIG. 1, a square spanner hanging part (tool hanging part) 43 capable of rotating the shaft foot bolt 4 is cut out at the distal end of the male threaded part 42. .

  As shown in FIG. 5, the water stopcock 6 serves to stop water by being pressed into the axial hole 21 of the cone 2 and embedded after the shaft foot bolt 4 and the concrete form plate support 3 are detached. As shown in detail in FIG. 2, it is formed in a rod shape with an elastomer, and a pleat 61 is formed at the tip and midway thereof.

  Next, the operation and effect of this embodiment will be described.

  Since this embodiment is configured as described above, as shown in FIG. 4, the shaft foot bolt 4 is inserted into the insertion hole 81 formed in the concrete mold plate 8, and the home tie 9 is inserted into the distal male thread portion 42 thereof. And the concrete formwork plate 8 is clamped and fixed between the locking flange portion 32. Then, after the placed concrete is hardened, the concrete form plate 8 is removed by releasing the screwed state of the home tie 9 with respect to the shaft foot bolt 4.

  Then, after removing the concrete formwork plate 8, as shown in FIG. 5 (a), the spanner bolt 4 threadedly engaged with the female threaded portion 12 of the fixing nut 1 is attached to the spanner hanging portion formed at the tip thereof. A wrench is put on 43 to release the screwed state and pulled out.

  Next, as shown in FIG. 5 (b), a bolt 33 is screwed into the axial hole 31 of the concrete form plate support 3 made of synthetic resin such as ABS, and the concrete form plate support 3 is made into concrete. 7 Pull out from inside.

  Next, as shown in FIG. 5 (c), after cleaning the trace hole 71 formed after the concrete form plate support 3 is extracted and the axial hole 21 of the cone 2, the axial hole 21 of the cone 2 is cleaned. The water stopper 6 is press-fitted into the interior, and finally, as shown in FIG. 5 (d), the mortar 10 is embedded in the trace hole 71 formed after the concrete form plate support 3 is extracted, thereby stopping the water. And complete the embedding work.

As described above in detail, in the separator plug device of this embodiment, the outer diameter of the shaft hole 31 larger than the outer diameter of the shaft foot bolt 4 and the outer diameter of the shaft hole 21 of the cone 2 are larger. An annular protrusion 33 having an outer diameter that can be inserted into the axial hole 21 of the cone 2 is provided at the base end opening edge of the cylinder having a diameter, and the outer periphery of the tip is in contact with the concrete mold plate 8. By providing the concrete form plate support 3 having the thin locking flange portion 32, the tool hanging portion formed at the tip of the shaft foot bolt 4 after the concrete 7 is hardened and the concrete form plate 8 is removed. 43 is attached with a tool such as a wrench to extract the shaft bolt 4 from the fixing nut 1 and fill the trace hole 71 after the concrete form plate support 3 is extracted with the mortar 10 so that the cone 2 is made of concrete 7. Since the state embedded in the end face of the cone is not exposed to the concrete finishing surface.
Therefore, it is possible to prevent the end face of the ceramic cone 2 from appearing as a color pattern on the surface of the concrete that has turned black due to exposure to a natural environment such as rain or dust.

The separator plug device is composed of a cylindrical cone 2 to be fitted in the concrete 7 and a concrete form plate support 3 that is pulled out after the concrete 7 is hardened. Since the tool hook portion 43 is formed at the tip of the shaft foot bolt 4 in order to extract the shaft foot bolt 4 together with the support body 3, it becomes possible to reduce the outer shape of the concrete formwork plate support body 3 itself. The diameter of the trace hole 71 after the concrete form plate support 3 is extracted can be minimized.
Accordingly, the amount of mortar formed on the concrete finish surface and embedded in the trace hole 71 becomes very small, so that the trace hole processing (finishing days) can be greatly shortened and the concrete finish surface can be traced from the trace hole. 71 becomes inconspicuous, and a more beautiful finish can be achieved.

  Further, the shaft center hole 31 of the concrete formwork plate support 3 is formed to have a larger diameter than the outer diameter of the shaft foot bolt 4 so that a predetermined annular gap h is formed between the outer surface of the shaft foot bolt 4. Therefore, even if the fixing nut 1 and the fixing nut 1 are fitted and fixed in a state in which the axis of the cone 2 is displaced due to variations in the dimensional accuracy of the axial hole 21 in the cone 2, the shaft The foot bolt 4 is prevented from being pressed against the inner peripheral surface of the shaft center hole 31 of the concrete form plate support 3 so that it is possible to prevent the shaft foot bolt 4 from being difficult to be pulled out. Become.

  Further, the contact end face of the concrete mold plate support 3 is constituted by the front end face of the concrete mold plate support 3 and the end face of the thin locking flange portion 32 projecting to the outer periphery, whereby the concrete mold plate Since the outer shape of the main body of the support 3 can be reduced, the amount of the mortar 10 embedded in the trace hole 71 formed after the concrete form plate support 3 is extracted can be further reduced.

  Further, since the concrete mold plate support 3 is made of a synthetic resin, the bolt 34 is screwed into the axial hole 31 of the concrete mold plate support 3 and the concrete mold plate support 3 can be easily pulled out. Will be able to.

  Further, the chamfered tapered portion 31a is formed at the edge of the opening of the axial hole 31 in the concrete mold frame support 3 so that the bolt 34 is initially screwed into the axial hole 31 of the concrete mold frame support 3. Becomes easier.

  In addition, the concrete mold plate support 3 can be easily pulled out by forming the outer peripheral surface of the concrete mold plate support 3 to have a tapered surface that increases in diameter toward the tip side. .

  Further, the outer peripheral surface of the locking flange portion 32 in the concrete mold plate support 3 is formed into a tapered surface inclined toward the direction of the cone 2, so that the concrete 7 reaches the corner when the concrete is placed, and the concrete mold The inner peripheral wall of the shallow depression formed on the finished surface by the locking flange portion 32 after the plate support 3 is pulled out can be finished finely.

  In addition, since the cone 2 is made of ceramics, which is a silicate mineral similar to cement, it has excellent compatibility with and adhesion to the concrete 7, and excellent salt and corrosion resistance, which is advantageous in terms of durability and prevention of salt damage. It is. In this case, in particular, since the concrete form plate support 3 is provided on the tip side of the cone 2, a part of the cover thickness can be handled, so that the length of the thick cone 2 is increased accordingly. It can be shortened, which makes it possible to reduce material costs.

  In addition, by providing the water stop cock 6 that can be pressed into the axial hole 21 of the cone 2 to stop water, salt damage can be prevented.

  Although the present embodiment has been described above, the present invention is not limited to the above-described embodiment, and design changes and the like within a scope not departing from the gist of the present invention are included in the present invention.

  For example, in the embodiment, the cone 2 is long and the concrete form plate support 3 is shortened accordingly, but the ratio of the lengths of both is arbitrary.

  In the embodiment, the cone 2 is formed of ceramics. However, the cone 2 may be formed of synthetic resin, concrete, or the like, and may be any other material than a corrosive material such as metal.

  In the embodiment, the concrete form plate support 3 is formed of a synthetic resin such as ABS, but may be formed of other materials such as metal.

  Moreover, in the Example, although the latching flange part 32 was formed in the front-end | tip part outer periphery of the concrete formwork board support body 3, this can be abbreviate | omitted.

  In addition, by forming a female threaded portion at least on the side of the edge of the axial hole 31 in the concrete mold plate support 3, a bolt 34 is screwed into the male screw portion to facilitate the concrete mold plate support 3 Can be pulled out.

It is a perspective view which shows the plug apparatus for separators of an Example. It is a perspective view which shows the water stop cock in the plug apparatus for separators of an Example. It is sectional drawing which shows the plug apparatus for separators of an Example. It is sectional drawing which shows the use condition of the plug apparatus for separators of an Example. It is sectional drawing which shows the finishing process process after concrete placement.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Fixing nut 11 Female thread part 12 Female thread part 13 Locking flange part 2 Cone 21 Axle hole 3 Concrete mold frame board support 31 Axle hole 31a Chamfered taper part 32 Locking flange part 32a Taper surface 33 Annular protrusion 34 Bolt 4 shaft foot bolts 41 male threaded part 42 male threaded part 43 spanner hanging part (tool hanging part)
5 Separator 51 Male thread 6 Stop cock 61 Fridge 7 Concrete 71 Trace hole 8 Concrete mold plate 81 Insertion hole 9 Home tie 10 Mortar k Cover

Claims (9)

A fixing nut having a female thread portion, a cylindrical cone that is fitted to the distal end side of the fixing nut and is struck to concrete, and is inserted into the axial hole of the fixing nut from the distal end side of the cone. The shaft foot bolt is formed such that a predetermined annular gap is formed between the shaft foot bolt that is detachably coupled to the female screw portion and the outer surface of the shaft foot bolt. A cylindrical hole having an outer diameter larger than the outer diameter of the cone and an outer diameter larger than the outer diameter of the cone. A concrete mold plate support that is provided with an annular protrusion and has an abutting end surface that abuts against the concrete mold plate at the tip thereof;
A separator plug device characterized in that a tool hook portion capable of rotating the shaft foot bolt is formed at a tip portion of the shaft foot bolt.   2. The separator plug device according to claim 1, wherein the contact end surface of the concrete mold plate support is an end surface of a thin locking flange portion that protrudes from an end surface and an outer periphery of the concrete mold plate support. 3. A separator plug device comprising the separator device.   3. The separator plug device according to claim 1, wherein an internal thread portion is formed at least at a tip edge side of the axial hole in the concrete mold plate support. 4.   The separator plug device according to any one of claims 1 to 3, wherein the concrete form plate support is made of a synthetic resin.   5. The separator plug device according to claim 4, wherein a chamfered tapered portion is formed at a tip opening edge portion of a shaft hole in the concrete mold plate support.   The plug device for a separator according to any one of claims 1 to 5, wherein an outer peripheral surface of the concrete form plate support is formed in a tapered surface that increases in diameter toward the tip side. Plug device for separator.   The separator plug device according to any one of claims 2 to 6, wherein an outer peripheral surface of a locking flange portion of the concrete form plate support is formed as a tapered surface inclined toward the cone direction. A plug device for a separator.   The separator plug device according to any one of claims 1 to 7, wherein the cone is made of ceramics.   The separator plug device according to any one of claims 1 to 8, further comprising a water stop cock that can be pressed into the axial hole of the cone to stop the water. apparatus.

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