JP4733082B2 - Method and apparatus for attaching steps to concrete frame - Google Patents

Description

  The present invention relates to a method and an apparatus for placing a holder in a mounting hole drilled in a concrete frame, and inserting a leg portion of a step holding an adhesive at a step insertion site into the holder to attach the step to the concrete frame. It is about.

Conventionally, caps each holding an adhesive material are attached to the mounting ends of the U-shaped steps molded with synthetic resin on the concrete wall, and the mounting ends together with the caps are placed in the corresponding mounting holes of the concrete wall. The cap is made of a metal mesh cylindrical bag, and a plurality of locking projections projecting outward are formed on the inlet side of the cap and adjacent to these locking projections. Then, there is one that attaches a step to a concrete wall in which an alignment groove with the step is formed (see, for example, Patent Document 1).
Also, a bottomed cylindrical holder is embedded in a mounting hole drilled in the concrete case, a capsule-type adhesive is loaded inside the holder, and the opening of the holder is covered with a cap. Then, a breaker is formed at the insertion end of the step, the cap is pierced, the insertion end is pushed into the holder, the capsule-type adhesive is crushed, and the adhesive flows out into the holder and solidifies to fix the step. There are some (see, for example, Patent Document 2).

JP 2004-156315 A JP 2005-171570 A

By the way, in Patent Document 1 of the above-mentioned prior art , the cap is constituted by a wire mesh cylindrical bag body, but there is room for improvement because the bag body lacks elasticity.
In Patent Document 2, the holder is embedded in the concrete body with irregularities formed on the outer periphery . However, there is room for improvement in waterproofing and prevention of falling out.

  The present invention has been made in view of such problems of the prior art, and the object of the present invention is to make the glass wool material harder by hardening with an adhesive or the like due to the properties of the glass wool material. The legs are firmly fixed by the holder, and the glass wool material is excellent in chemical resistance and heat resistance, thus reducing the deterioration of the glass wool material and attaching the holder between the concrete as well as an adhesive. It is intended to provide a method and apparatus for attaching a step to a concrete frame that is fixed by the above, prevents water from entering from the outside, and prevents the holder from coming off from the concrete body.

  In order to achieve the above object, the method of attaching a step to a concrete frame in the present invention is to insert a holder into a mounting hole drilled in the concrete frame and hold the adhesive at the step insertion site in the holder. In the method of inserting the stepped leg and attaching the step to the concrete frame, the holder is prevented from coming off at the tip of the holder when the holder is inserted, and the outer periphery of the holder is used to prevent water from entering the holder from the outside. The glass wool cap is impregnated with an adhesive, the irregularities formed on the leg portions of the step and the inner surface of the cap are locked, and the step is fixed to the holder with the adhesive.

  In addition, the holder removal at the tip of the holder is implemented by a locking member that locks the soil outside the concrete frame.

  Further, water intrusion prevention to the holder on the outer periphery of the holder is implemented by a plurality of layers of water-expanded rubber packing.

  In addition, the step attachment device to the concrete frame in the present invention includes a step in which a holder is inserted into an attachment hole formed in the concrete frame, and an adhesive is held at the insertion site of the step in the holder. In a device for attaching a step to a concrete frame, an adhesive is applied to a glass wool cap to be crowned at the step insertion portion by forming a screw groove or irregular streaks on the leg portion which is the step insertion portion. Is formed on the front end of the synthetic resin holder, and a plurality of ring-shaped water expansion rubber packings are wound around the outer periphery, and a plurality of adhesives are provided between the rubber packings. An outflow window is formed, and a locking member for the concrete frame is formed at the rear end of the holder.

  The adhesive is made of a mixture of two epoxy liquids.

  Further, the holder is constituted by a front and rear divided parts, a free flange is attached to the rear side, and the flange is brought into close contact with the concrete frame surface.

  Insert the holder into the mounting hole drilled in the concrete frame, insert the step leg holding the adhesive at the insertion site of the step into the holder, and insert the holder when attaching the step to the concrete frame Sometimes the tip of the holder is used to prevent the holder from coming off, and the outer periphery of the holder is used to prevent water from entering the holder. And the inner surface of the cap are locked and the step is fixed to the holder with an adhesive, so that the glass wool material is hardened by the properties of the glass wool material and the step leg is made stronger by the holder. Fixed, glass wool material is excellent in chemical resistance and heat resistance. It can be the step of mounting method and apparatus of the concrete skeleton to prevent.

In addition, the holder at the tip of the holder is prevented from being detached by a locking member that is locked to the soil outside the concrete frame, and water penetration into the holder at the outer periphery of the holder is prevented by a plurality of layers of water expansion rubber packing. Since it is implemented, it becomes a method and apparatus for attaching a step to a concrete frame that prevents the holder from coming out of the concrete body and prevents water from entering from the outside.

  Insert the holder into the mounting hole drilled in the concrete frame, insert the step leg holding the adhesive at the insertion site of the step into the holder, and insert the step when attaching the step to the concrete frame A thread groove or irregular streaks are formed on the leg that is the part, and an adhesive is impregnated into the glass wool cap that is crowned at the insertion part of the step, so that the tip of the synthetic resin holder is prevented from coming off. And a plurality of ring-shaped water expansion rubber packings are wound around the outer periphery, a plurality of adhesive outflow windows are formed between the rubber packings, and a concrete frame is formed at the rear end of the holder. Since the adhesive impregnated in the glass wool cap oozes out, the irregularities formed in the leg portions of the step, the inner surface of the glass wool cap and the The outer surface of the glass wool cap and the inner surface of the holder are fixed by an adhesive, and the adhesive oozes out from a plurality of adhesive outflow windows, and the outer periphery of the holder and the inner surface of the mounting hole are also fixed by the adhesive. It is more firmly attached to the concrete frame with an adhesive. In addition, the holder is fixed to the inner surface of the concrete frame by the locking member, and the method and apparatus for attaching the step to the concrete frame can prevent water from entering from the inner surface of the concrete frame.

  In addition, because the adhesive is a mixture of two epoxy-based adhesives, the irregularities formed on the step legs and the inner surface of the glass wool cap, the outer surface of the glass wool cap, the inner surface of the holder and the holder The method and apparatus for attaching a step to a concrete frame with better adhesion between the outer periphery and the inner surface of the attachment hole.

  In addition, the holder is composed of two front and rear parts, and a flexible flange is attached to the rear side so that the flange is brought into close contact with the concrete frame surface. In addition, the flexible flange is brought into close contact with each other so that the holder can be more securely fixed and water can be prevented from entering from the inner surface of the concrete case, and the step to the concrete case can be prevented from rattling. The mounting method and apparatus are as follows.

  Insert the holder into the mounting hole drilled in the concrete frame, insert the step leg holding the adhesive at the insertion site of the step into the holder, and insert the holder when attaching the step to the concrete frame Sometimes the tip of the holder is used to prevent the holder from coming off, and the outer periphery of the holder is used to prevent water from entering the holder. And the inner surface of the cap are locked, and the step is fixed to the holder with an adhesive, thereby realizing a method and apparatus for attaching the step to the concrete frame that securely and firmly attaches the step to the concrete surface.

  FIGS. 1 to 3 relate to an embodiment of a method and apparatus for attaching steps to a concrete frame according to the present invention, FIG. 1 is an explanatory view of the method and apparatus for attaching steps to a concrete frame, and FIG. FIG. 3 is a cross-sectional plan view in which the leg portion of the step is fixed to the housing, and FIG. 3 is a front view of the holder.

In the above figure, 1 is a side portion of a U-shaped step (not shown) attached to the concrete housing 2, and a concavo-convex 3 (for example, a screw groove or deformed bar) is formed on the tip side of the side portion 1. The leg portion 4 is formed as an insertion portion of the step in which the uneven shape such as a shape is formed.
Reference numeral 5 denotes a holder, and the holder 5 is inserted into a mounting hole 6 formed in the concrete casing 2.
The holder 5 is prevented from coming off from the concrete housing 2 with a slip-off preventing body 7 for preventing slip-off formed at the tip of the holder 5 when the holder 5 is inserted.
A water intrusion prevention body 8 for preventing water from entering the holder 5 is provided on the outer periphery of the holder 5 to prevent water from entering the holder 5 from the outside.

  Reference numeral 9 denotes a glass wool cap, and the glass wool cap 9 is formed in a bag shape so that the legs 4 are crowned, and then the glass wool cap 9 is impregnated with the adhesive 10. Then, by pressing the leg 4 into the holder 5, the impregnated adhesive 10 oozes out and the unevenness 3 formed on the leg 4 of the step, the inner surface of the cap 9 of the glass wool material, and the glass wool material The outer surface of the cap 9 and the inner surface of the holder 5 are fixed by the adhesive 10, and the step is firmly attached to the concrete housing 2 by the adhesive 10.

According to the method and apparatus for attaching the step to the concrete frame, the glass wool material is hardened by being hardened by the adhesive 10 due to the characteristics of the glass wool material, and the leg 4 of the step is firmly fixed by the holder 5. The glass wool material has excellent chemical resistance and heat resistance, so it can reduce the deterioration of the glass wool material and prevent the rattling of the step, and also prevent the holder 5 from coming out of the concrete body , It is possible to prevent water from the outside from entering the mounting hole 6 into which the holder 5 is inserted.

It is also possible to carry out preventer 7 missing is formed in the distal end portion of the holder 5 in the locking member 7 which engages the outside of the soil 11 of the concrete framework 2.
With this locking member 7, the holder 5 can be more difficult to be removed from the concrete body 2.

Further, the intrusion prevention member 8 of water to the holder 5 at the outer periphery of the holder 5, it is also possible to carry out the water-swelling rubber packing 8, 8 a plurality of layers.
The plurality of layers of the water expansion rubber packings 8 and 8 can prevent water from entering from the outside.

  A plurality of adhesive outflow windows 12, 12,... Are formed between the rubber packings 8, 8 provided on the outer periphery of the holder 5 in the above-described method and apparatus for attaching steps to the concrete frame. An apparatus in which a locking member 13 for the concrete housing 2 is formed at the rear end can also be implemented. And since it is substantially the same structure as Example 1 except the adhesive agent outflow window 12, 12, ..., and the locking member 13, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

  A method and apparatus for attaching a step to a concrete casing having the above-described configuration, wherein the adhesive 10 impregnated in the glass wool cap 9 oozes out and the irregularities 3 formed on the leg 4 of the step The inner surface of the glass wool cap 9 and the outer surface of the glass wool cap 9 and the inner surface of the holder 5 are fixed by the adhesive 10, and the adhesive 10 oozes out from the plurality of adhesive outlet windows 12, 12,. The outer periphery of the holder 5 and the inner surface of the attachment hole 6 are also fixed by the adhesive 10, and the step is more firmly attached to the concrete housing 2 by the adhesive 10. Further, the holder 5 is fixed to the inner surface of the concrete housing 2 by the locking member 13 and water or the like can be prevented from entering from the inner surface of the concrete housing 2.

Moreover, it is advantageous to use the adhesive 10 mixed with a highly viscous epoxy-based two liquid.
When such a mixture of two epoxy-based liquids is used, the unevenness 3 formed on the leg 4 of the step and the inner surface of the glass wool cap 9, the outer surface of the glass wool cap 9, the inner surface of the holder 5, and the holder The outer periphery of 5 and the inner surface of the attachment hole 6 are more excellently bonded, and the step is more firmly attached to the concrete case 2 with the adhesive 10.

  4 to 6 relate to another embodiment of the method and apparatus for attaching a step to a concrete frame according to the present invention. FIG. 4 is a front view of a holder, FIG. 5 is a plan view of a free flange, and FIG. It is the cross-sectional top view which fixed the leg part of the step to the concrete frame.

In each figure , reference numeral 25 denotes a holder composed of two front and rear parts. A convex protrusion 26 is formed at the lower part of the front side 25a of the holder 25, and a concave groove 27 is formed at the upper part of the rear side 25b. The two members 25a and 25b are joined to each other.

Reference numerals 28 and 28 denote pins formed radially from the outer periphery of the rear side 25 b, and a universal flange 29 pressed by the pins 28 and 28 is fitted into the rear side 25 b of the holder 25.
Further, as shown in FIG. 5, the universal flange 29 of the elliptical concave grooves 31, 31 for accommodating the pins 28, 28 to form a hole 30 of oval cross section which penetrates the rear side 25b of the hole 30 It is formed in the minor axis direction.
Since the configuration other than the holder 25 and the universal flange 29 is substantially the same as that of the embodiment shown in FIGS. 1 to 3, the same reference numerals are given and the description thereof is omitted.

  According to such a method and apparatus for attaching a step to a concrete frame, the above-described effects are obtained, and the free flange 29 can be further swung, and the free flange 29 is brought into close contact with the shape of the inner surface of the concrete frame 2. Further, the holder 25 can be securely fixed to the concrete housing 2 and can prevent water or the like from entering from the inner surface of the concrete housing 2 and can prevent rattling of the steps.

It is explanatory drawing of the attachment method and apparatus of the step to the concrete frame which concerns on one Example of this invention. It is the cross-sectional top view which fixed the leg part of the step to the concrete frame. It is a front view of a holder. It is a front view of the holder of the attachment apparatus of the step to the concrete frame concerning other examples of the present invention. It is a top view of a universal flange. It is the cross-sectional top view which fixed the leg part of the step to the concrete frame.

Explanation of symbols

2 Concrete frame 3 Concavity and convexity 4 Leg 5 Holder 6 Mounting hole 7 Preventing body (locking member)
8 Water intrusion prevention body (water expansion rubber packing)
9 Cap of glass wool material 10 Adhesive 11 Soil 12 Adhesive outflow window 13 Locking member 25 Holder 29 composed of two divided bodies

Claims (6)

  In a method in which a holder is inserted into a mounting hole drilled in a concrete frame, a step leg holding an adhesive is inserted into the holder, and a step is attached to the concrete frame. At the end of the holder, the holder tip is prevented from coming off, and the outer periphery of the holder is used to prevent water from entering the holder from the outside, and a glass wool cap is impregnated with an adhesive to form the leg of the step. A method for attaching a step to a concrete frame, wherein the step and the inner surface of the cap are locked and the step is fixed to the holder with an adhesive.   The method of attaching a step to a concrete case according to claim 1, wherein prevention of the holder from being removed at the tip of the holder is implemented by a locking member for locking to soil outside the concrete case.   The method for attaching a step to a concrete frame according to claim 1 or 2, wherein water intrusion prevention to the holder on the outer periphery of the holder is performed by a plurality of layers of water-expanded rubber packing.   In a device in which a holder is inserted into a mounting hole drilled in a concrete frame, a step leg holding an adhesive at the step insertion site is inserted into the holder, and the step is attached to the concrete frame. A thread groove or irregular streaks are formed on the leg that is the insertion site, and the glass wool cap that is crowned on the insertion site of the above step is impregnated with an adhesive to prevent the tip of the holder made of synthetic resin from coming off. A plurality of ring-shaped water expansion rubber packings are wound around the outer periphery, a plurality of adhesive outlet windows are formed between the rubber packings, and a concrete frame is formed at the rear end of the holder. An apparatus for attaching a step to a concrete frame, characterized in that a locking member is formed.   5. The apparatus for attaching a step to a concrete frame according to claim 4, wherein the adhesive comprises a mixture of two epoxy-based liquids.   6. The concrete case according to claim 4 or 5, wherein the holder is constituted by a front and rear divided part, a free flange is attached to the rear side, and the flange is brought into close contact with the concrete case surface. Step mounting device.

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