JP3168548U - Deck plate insert - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an insert for a deck plate which can be efficiently attached to a deck plate and has excellent water stopping property before or during placing concrete. SOLUTION: The outer cylinder portion and an insert main body 3 inserted and mounted on the outer cylinder portion are provided, and the outer cylinder portion 2 is provided with a flange portion that abuts on the upper surface of a deck plate on the outer circumference thereof. , An overhanging piece that can be extended in the outer peripheral direction is provided below the flange on the lower side of the deck plate, and the insert body is formed with a female screw that opens downward, and the head of the insert body. The overhanging piece is fixed by overhanging under the deck plate by driving in, and the hanging bolt can be hung, and it is attached to the outer circumference of the outer cylinder below the collar and inserted into the through hole. A washer member 4 formed of a water-stopping elastic material having a tubular body to be attached and an edge extending in the outer peripheral direction around the entire upper end of the outer peripheral surface of the tubular body is formed by a deck plate and an outer tubular body. It is a configuration arranged between. [Selection diagram] Fig. 1

Description

  The present invention relates to an insert for a deck plate, and more particularly to an insert for suspending and fixing a suspension bolt for suspending a suspended structure such as a suspended ceiling, an air conditioner, and piping on a ceiling plate material such as a deck plate.

  The insert is attached to the deck plate having the corrugated plate structure by making a through hole in the deck plate, driving the insert into the through hole, and fixing the insert.

  For example, as disclosed in Patent Document 1, a conventional insert has a configuration in which a collar provided on an outer cylinder portion of an insert is in contact with an upper surface of a deck plate to close a through hole formed in the deck plate. ing.

Japanese Patent No. 4215165

  However, in the conventional techniques including the technique described in Patent Document 1, since the outer diameter of the outer cylindrical portion of the insert is often larger than the diameter of the through hole, a suspension bolt is screwed into the female screw portion of the insert. In some cases, the insert may rotate together with the suspension bolts and be unable to be screwed together, resulting in a problem that workability may be significantly impaired.

  In addition, there is a problem that moisture at the time of placing concrete on the deck plate may leak from the through hole.

  Furthermore, in the case of a construction method that hangs an air conditioner or the like before concrete placement that has begun in recent years, rainwater leaks out from the through-hole during rain before concrete placement and wets the air conditioner or the like. There are also disadvantages.

  Accordingly, an object of the present invention is to provide an insert for a deck plate that can efficiently perform an attaching operation to the deck plate and that is excellent in water stoppage before or during concrete placing.

  This invention which solves the above-mentioned subject has the following composition.

1. An outer cylinder part that is inserted through and attached to the through hole formed in the deck plate from above, and an insert body that is inserted and mounted in the hollow part of the outer cylinder part,
The outer cylinder part is provided with a flange part that abuts on the upper surface of the deck plate when the deck plate is inserted and attached to the outer periphery of the outer cylinder part, and a protruding piece that can be extended outward in the outer peripheral direction below the deck plate. Part is provided,
The insert body is formed with a female screw portion that opens downward,
After inserting the deck plate, the head of the insert main body is driven, the protruding piece is extended in the outer peripheral direction below the deck plate and fixed to the deck plate, and the deck is configured to be able to suspend the suspension bolt. In plate inserts,
A cylindrical body that is attached to the outer periphery of the outer cylindrical portion below the flange and is inserted and attached to the through hole; and an edge that extends in the outer circumferential direction on the entire upper end of the outer peripheral surface of the cylindrical body; A deck plate insert characterized in that a washer member formed of a water-stopping elastic material is disposed between the deck plate and the outer cylinder.

2. 2. The deck plate insert according to claim 1, wherein an outer diameter of an edge portion of the washer member is larger than an outer diameter of the flange portion.

3. 3. The deck plate insert according to claim 1 or 2, wherein the cylindrical body of the washer member has a length protruding from the bottom surface of the deck plate when the deck plate is inserted and attached.

4). 4. The deck plate insert according to any one of the above items 1 to 3, wherein the washer member is formed of water-expandable rubber.

  According to the first aspect of the present invention, it is possible to provide an insert for a deck plate that can be efficiently attached to the deck plate and that is excellent in water stoppage before or during concrete pouring. Can do.

  In particular, by inserting a washer member made of a water-stopping elastic material between the through hole of the deck plate and the outer cylindrical portion of the insert, the insertion of the insert into the through hole is fixed, so that the suspension bolt is screwed Not only can the time be prevented, but also the water stop effect is exhibited, so that it is possible to prevent the leakage of rain water before the concrete is placed and the leakage of the cast concrete moisture when the concrete is placed.

  According to the second aspect of the present invention, it is possible to further improve the water stop effect between the flange portion of the insert outer cylinder portion and the top surface of the deck plate, and further improve the effect of preventing rotation when screwing the suspension bolt. Can be made.

  According to the invention shown in claim 3, while the water stop effect between the cylindrical body of the insert outer cylinder portion and the deck plate through-hole can be further improved, the effect of preventing the rotation when the suspension bolt is screwed is achieved. It can be improved further.

  According to the invention shown in claim 4, it is possible to obtain a higher water stop effect by absorbing the water generated at the time of placing concrete.

The front view which shows one Example of the insert for deck plates concerning this invention, and an AA sectional view Explanatory front view showing an example of mounting example of the deck plate insert shown in FIG. Explanatory front view showing an example of mounting example of insert for deck plate shown in FIG. 1 (Part 2) Explanatory front view showing an example of mounting example of the insert for deck plate shown in FIG. 1 (No. 3) FIG. 4 is an explanatory front view showing an example of an installation example of the deck plate insert shown in FIG.

  Next, the present invention will be described with reference to the accompanying drawings.

As shown in FIGS. 1 to 5, an insert for a deck plate (hereinafter sometimes simply referred to as an insert) 1 according to the present invention is as follows.
The outer cylinder part 2 inserted and attached to the through hole 51 formed in the deck plate 5 from above, and the insert main body 3 inserted and mounted in the hollow part of the outer cylinder part 2,
The outer cylinder portion 2 is provided with a flange portion 21 that contacts the top surface of the deck plate 5 when the deck plate 5 is inserted and attached to the outer periphery of the outer cylinder portion 2. The overhanging piece 22 that can be overhanged is provided,
The insert body 3 is formed with a female screw portion 31 opening downward,
After inserting the through hole 51 of the deck plate 5, the head of the insert body is driven in, the protruding piece is extended in the outer peripheral direction below the deck plate and fixed to the deck plate 5, and the suspension bolt 7 is attached. In the suspendable configuration,
A cylindrical body 41 that is attached to the outer periphery of the outer cylindrical portion 2 below the flange portion 21 and is inserted and attached to the through hole 51, and extends in the outer peripheral direction to the entire upper end of the outer peripheral surface of the cylindrical body 41. The washer member 4 formed of a water-stopping elastic material having an edge portion 42 is disposed between the deck plate 5 and the outer cylindrical body 2.

  Hereinafter, the insert 1 of the present invention will be described in further detail.

  As the outer cylinder part 2 which is one constituent member of the insert 1, a publicly known structure and material can be used as the outer cylinder part of this type of deck plate insert without any particular limitation. That is, it is made of synthetic resin and is inserted through and attached to the through hole 51 of the deck plate 5 from above, and the upper surface of the deck plate 5 is prevented from falling off by the flange 21, and the insert main body 3 is driven. The insert 1 is fixed to the deck plate 5 by preventing the overhang of the deck piece 5 by the overhang of the projecting piece portion 22 in the outer peripheral direction. Reference numeral 23 denotes a reinforcing rib that reinforces the strength of the outer cylindrical portion 2 and the flange portion 21.

  Similarly, as the insert main body 3 which is one constituent member of the insert 1, a publicly known configuration and material can be used as the insert main body of this type of deck plate insert without any particular limitation. That is, the deck plate 5 is made of metal or hard plastic, and is inserted into and fixed to the outer cylinder portion 2 and inserted into the through hole 51 of the deck plate 5 and then driven by a hammer 6 (see FIG. 5A). It is fixed to. After fixing to the deck plate 5, the suspension bolt 7 is screwed into the female screw portion 31 that opens downward before or after the placement of the concrete 8, and the suspended suspension bolt 7 is suspended to the ceiling, air conditioner, By fixing suspension structures such as piping, these suspension structures can be suspended from the deck plate 5 in a stable state.

  In the present invention, as described above, the washer member 4 is added to the insert 1 in addition to the outer cylinder portion 2 and the insert body 3.

  The washer member 4 is interposed between the through hole 51 of the deck plate 5 and the outer cylinder portion 2 of the insert 1, thereby fixing the insertion of the insert 1 to the through hole 51, and when the suspension bolt 7 is screwed. Circulation can be prevented.

  Furthermore, since the washer member 4 is formed of a water-stopping elastic material, it can exhibit a water-stopping effect in the through hole 51 and prevent leakage of concrete moisture during concrete placement.

  As a material for the washer member 4, an elastic material having water-stopping property such as synthetic rubber, natural rubber, soft synthetic resin, and a mixture thereof can be used without any particular limitation. It is also preferable to use a water-swellable rubber that expands by absorbing moisture and exhibits a water-stopping effect as the water-stopping elastic material.

  Examples of the water-swellable rubber include a composition obtained by adding a rubber substance and a water-swellable resin, a filler, a vulcanizing agent, a vulcanization accelerator, a plasticizer, a colorant, an anti-aging agent, a processing aid, and the like. Examples thereof include those kneaded by a machine such as a mixer, a Banbury mixer, a kneader, extruded into a desired shape by extrusion molding, and vulcanized by a conventional method.

  Examples of the rubber substance include chloroprene rubber, styrene-butadiene rubber, isoprene rubber, butyl rubber, natural rubber, and the like, and these can be used as a composite blend.

  Examples of the water-swellable resin used in the water-swellable rubber include various water-swellable resins that are crosslinked such as acrylic acid-based, acrylate-based, maleic anhydride-based, urethane-based, and polyvinyl alcohol-based. These water-swellable resins are blended to have a volume expansion of 2 to 15 times, preferably 3 to 10 times.

  In order to improve the anti-rotation effect and the water stopping effect by the washer member 4, the outer diameter of the edge portion 42 is made larger than the outer diameter of the flange portion 21 of the outer cylinder portion 2 as shown in the present embodiment. Is preferred. According to such a configuration, the contact area between the edge portion 21 and the upper surface of the deck plate 5 and the contact area between the edge portion 21 and the flange portion 21 can be increased. It can be improved further.

  Further, in order to improve the above-mentioned anti-rotation effect and water stop effect, the length of the tubular body 41 of the washer member 4 protruding from the bottom surface of the deck plate 5 when the deck plate 5 is inserted and attached as shown in the present embodiment. That is, it is also preferable that the length of the cylindrical body 41 is larger than the thickness of the deck plate 5. According to such a configuration, the contact area between the tubular body 41 and the through hole 51 and the contact area between the tubular body 41 and the insert body 3 can be increased. Can be further improved.

  The deck plate insert according to the present invention has been described above based on the embodiment. Next, an example of an attachment example of the insert 1 having the above configuration will be described with reference to FIGS.

  First, a through hole 51 is formed in the deck plate 5 as shown in FIG. 2A, and the washer member 4 is attached to the through hole 51 as shown in FIG. At this time, the tubular body 41 portion of the washer member 4 is surely inserted into the through hole 51, and the edge portion 42 is attached so as to contact the upper surface of the deck plate 5.

  Next, as shown in FIGS. 3A and 3B, the outer tube portion 2 and the insert body 3 are inserted and attached in a state where the washer member 4 is interposed in the through hole 51.

  Next, the insert body 3 is driven as shown in FIG. 4B by hitting the head of the insert body 3 against the hammer 6 as shown in FIG. By this driving, the insert main body 3 moves downward, and by this movement, the protruding piece 22 is pushed out from the inner side by the insert main body 3 in the outer peripheral direction. By the overhang of the overhanging piece portion 22, the insert 1 is tightly fixed to the deck plate 5 via the washer member 4.

  Next, as shown in FIG. 5A, the suspension bolt 7 is screwed into the female screw portion 31 from below the insert 1 so that the suspension bolt 7 is inserted into the insert 1 as shown in FIG. Can be suspended and fixed. In addition, in FIG. 5 (B), the code | symbol 8 shows casting concrete.

  In FIGS. 5A and 5B, concrete is placed on the deck plate 5 after the suspension bolts 7 are screwed. However, the present invention is not limited to this, and the suspension bolts 7 are placed after the concrete placement. May be screwed.

DESCRIPTION OF SYMBOLS 1 Insert 2 Outer cylinder part 21 Gutter part 22 Overhanging piece part 23 Reinforcement rib 3 Insert main body 31 Female screw part 4 Washer member 41 Cylindrical body 42 Edge part 5 Deck plate 51 Through-hole 6 Hammer 7 Hanging bolt 8 Casting concrete

Claims (4)

An outer cylinder part that is inserted through and attached to the through hole formed in the deck plate from above, and an insert body that is inserted and mounted in the hollow part of the outer cylinder part,
The outer cylinder part is provided with a flange part that abuts on the upper surface of the deck plate when the deck plate is inserted and attached to the outer periphery of the outer cylinder part, and a protruding piece that can be extended outward in the outer peripheral direction below the deck plate. Part is provided,
The insert body is formed with a female screw portion that opens downward,
After inserting the deck plate, the head of the insert main body is driven, the protruding piece is extended in the outer peripheral direction below the deck plate and fixed to the deck plate, and the deck is configured to be able to suspend the suspension bolt. In plate inserts,
A cylindrical body that is attached to the outer periphery of the outer cylindrical portion below the flange and is inserted and attached to the through hole; and an edge that extends in the outer circumferential direction on the entire upper end of the outer peripheral surface of the cylindrical body; A deck plate insert characterized in that a washer member formed of a water-stopping elastic material is disposed between the deck plate and the outer cylinder. 2. The deck plate insert according to claim 1, wherein an outer diameter of an edge portion of the washer member is larger than an outer diameter of the flange portion. The insert for a deck plate according to claim 1 or 2, wherein the cylindrical body of the washer member has a length protruding from the bottom surface of the deck plate when the deck plate is inserted and attached. The insert for a deck plate according to any one of claims 1 to 3, wherein the washer member is formed of water-expandable rubber.

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