JPH04102784A - Heat insulating and supporting device for hanging bolt - Google Patents

Abstract

PURPOSE:To obtain a heat insulating and supporting device for a hanging bolt, which can prevent generation of moisture condensation phenomenon securely and which can be applied easily to the structure made of concrete ALC and steelwork, by providing a heat insulating nut and a locking screw respectively in a bottom plate and a top plate opposite to each other. CONSTITUTION:A nut 10 made of synthetic resin having high heat insulating property is locked for holding inside of a bottom plate 2. A screw shaft part 23 of a locking screw 20 is formed into a tapping screw for concrete, and is projected from the inside of a top plate 6, and while locks a head 21 thereof is locked inside of the top plate 6, and fall thereof is prevented by an intermediate heat insulating member 15. The nut 10 is fixed to a concrete structure 26 through the locking screw 20. Next, a hanging bolt 30 is screwed with the heat insulating nut 10 for connection to hang and support a ceiling finishing material and other equipments. Consequently, since the hanging bolt 30 is insulated thermally from the locking screw 20 and a holding frame 1, generation of moisture condensation to be caused by a temperature difference between outside and inside of the concrete structure 26 is eliminated.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a heat insulating support device for hanging bolts for suspending and supporting ceiling finishing materials, various types of piping, and other equipment from structures such as concrete, ALC, or steel frames.

Conventional Technology In this type of suspension bolt, the outside temperature is transmitted through the concrete, ALC, or steel frame of the structure, and when the suspension bolt comes into contact with the moisture-containing air inside the structure, water droplets are generated due to the temperature difference. There was a problem that a so-called dew condensation phenomenon occurred.

As a means to solve these problems, a heat insulating insert made of synthetic resin bolts with high insulation properties is planted during concrete pouring, and after the concrete structure is completed, the screws installed at the bottom of the resin bolts are inserted. For example, one in which a hanging bolt is screwed into the hole was developed in 1986-15.
It is known from the publication No. 6106.

Problems to be Solved by the Invention However, the above-mentioned heat-insulating inserts have the disadvantage that they are not only expensive, but also cannot be used in structures after concrete pouring has been completed, nor can they be applied to structures made of ALC or steel frames. was there.

The present invention was made in view of the above circumstances, and can reliably prevent the occurrence of dew condensation, and can be easily applied not only to structures after concrete pouring is completed, but also to structures made of ALC or steel frames. The purpose is to provide a heat insulating support device for hanging bolts.

Means for Solving the Problems In order to achieve the above object, the heat insulating support device of the present invention includes:
A holding frame is formed by bending a thin metal plate and has an insertion hole for a suspension bolt and an insertion hole for a set screw in a bottom plate and a top plate that face each other, and a holding frame is provided inside the bottom plate for screwing the suspension bolt. a heat insulating nut made of a synthetic resin with high heat insulation properties and held therein; a screw shaft that protrudes through the insertion hole of the top plate and is screwed onto the structure; and a head that is held on the inside of the top plate. a set screw, the head of which is provided with an engaging groove for a rotary tool; and a set screw that is held in place between the heat insulating nut and the head of the set screw, and that tightens the set screw. and an intermediate heat insulating member made of synthetic resin with high heat insulation properties and having a guide hole.

The heat insulating nut and the intermediate heat insulating member may be integrally molded.

The screw shaft of the set screw is a concrete tapping screw for a concrete structure, an ALC screw for an ALC structure, and a drill screw for a steel structure.

Function: The heat insulating support device configured as described above engages the bit of a rotary tool inserted through the screw hole of the heat insulating nut and the guide hole of the intermediate heat insulating member with the head of the set screw, and rotates and tightens the bit. is fixed to the structure via the set screw. The suspension bolt screwed and connected to the nut is thermally isolated from the set screw and the holding frame via the nut and the intermediate heat insulating member.

Example Embodiments of the present invention will be described below based on the drawings.

FIGS. 1 and 2 show an example in which the present invention is implemented as a heat insulating support device for hanging bolts used in a concrete structure.

Reference numeral 1 denotes a holding frame forming the main body of the device, which is formed by bending a band-shaped thin metal plate, and includes a bottom plate 2, a lower side plate 3.3 standing up from both sides of the bottom plate 2, and an inner side from the upper edge of the lower side plate 3.3. an upper side plate 5. which extends upwardly through a bent portion 4.4;
5 and a top plate 6 formed by overlapping plate pieces bent inward from the upper edge of the upper side plate 5.5, the frame body is formed with an open front and rear side. An insertion hole 7 for a hanging bolt 30 (described later) is formed in the bottom plate 2, and an insertion hole 8 for a set screw 20 is formed in the top plate 6.

Reference numeral 10 denotes a heat insulating nut, which is molded from a synthetic resin material with high heat insulating properties, such as nylon. As clearly shown in FIG. 3, the nut 10 has two protrusions 12° 12 projecting inward from the lower side plates 3, 3, and one lower side plate
The locking tongue piece 13 is formed by punching it inward and bending it up.
As a result, it is locked and held between the lower side plates 3, 3 on the inside of the bottom plate 2, and its screw hole 11 is aligned with the insertion hole 7.

Reference numeral 15 designates an intermediate heat insulating member which, like the heat insulating nut 10, is made of a synthetic resin material with high heat insulating properties, such as nylon, and is formed into a rectangular parallelepiped, with a guide hole 16 for a rotary tool (see FIG. 4) for tightening a set screw 20 in the center part. It is provided. The intermediate heat insulating member 15 has a width that is in close contact with the inner side of the rain upper side plate 5.5 of the holding frame 1, and has a locking window 18 on the plate-shaped piece 17.17 that is continuous upwardly from both side edges. 18 are provided.

Then, a pair of locking pieces 14 and 14 formed by punching and bending the locking pieces 14 and 14 inward from the rain upper side plates 5 and 5 are attached to the locking windows 18 and 1.
8, the intermediate heat insulating member 15 is locked and held between the rain upper side plates 5, 5, and its guide hole 16 is aligned with the threaded hole 11 and the insertion hole 7 of the heat insulating nut 10. There is.

In the illustrated embodiment, the heat insulating nut 1o and the intermediate heat insulating member 15 are formed separately, but they are integrally molded to form the holding frame 1.
It is also possible to lock and hold it.

The set screw 20 has an engagement groove 22 in a head 21 in which a rotary tool 25 engages, and a screw shaft portion 23 is formed as a tapping screw for concrete. The set screw 20 has its screw shaft portion 23 fitted into the insertion hole 8 from inside the top plate 6 of the holding frame 1 to protrude, its head 21 locked inside the top plate 6, and the intermediate heat insulating member 15 This prevents it from falling off. Note that the diameter of the guide hole 16 of the intermediate heat insulating member 15 is slightly larger than the outer diameter of the rotary tool (bit) 25, and
Since the diameter of the set screw 20 is smaller than the outer diameter of the guide hole 16, the set screw 20 will not accidentally fall out through the guide hole 16.

As shown in FIG.
Insert the screw shaft 23 of the setscrew 20 into the insulating nut 1.
The bit 25 of the rotary tool inserted into the screw hole 11 of 0 and the guide hole 16 of the intermediate heat insulating member 15 is inserted into the head 21 of the set screw 20.
As shown in FIG.
It is fixed to the concrete structure 26 via.

Next, a hanging bolt 30 is screwed and connected to the heat insulating nut 10 of the heat insulating support device, which is fixed to the heat insulating support device, and is used to suspend and support ceiling finishing materials and other equipment.

The hanging bolts 30 connected in this way are attached to the insulation nuts 1
0 and the concrete structure 2 via the intermediate insulation member 15
Since the suspension bolts 30 are thermally isolated from the retaining frame 1 and the set screws 20 fixed to the concrete structure 26, condensation does not occur on the hanging bolts 30 due to a temperature difference between the outside and inside of the concrete structure 26.

FIG. 6 shows that the set screw 20 of the heat insulation support device is replaced with a set screw 20a whose screw shaft portion is an ALC screw 23a,
An example in which the suspension bolt 30 is connected to the ALC ceiling wall 28 is shown.

Further, FIG. 7 shows an example in which the set screw 20 of the heat insulation support device is replaced with a set screw 20b whose screw shaft portion is a drill screw 23b, and is applied to connect a hanging bolt 30 to a structure 29 made of a steel frame. ing.

Effects of the Invention Since the heat insulating support device of the present invention is configured as described above, it is possible to effectively prevent dew condensation on the hanging bolt.

Further, it has the advantage that it can be easily used not only for concrete structures but also for structures made of ALC or steel frames by simply replacing the setscrews attached to the holding frame with appropriate ones.

4. Brief description of the drawings Fig. 1 is a partially cutaway front view of a heat insulating support device for hanging bolts according to the present invention, Fig. 2 is a side view of the main parts, and Fig. 3 is a cross-sectional view of Fig. 2. Sectional view along line 3, 4th
5 and 5 are longitudinal sectional front views and front views of main parts showing the same usage example, and FIGS. 6 and 7 are front views showing different embodiments, respectively.

1... Holding frame 2... Bottom plate 3... Lower side plate 4... Bent part 5... Upper side plate 6... Top plate 7... Hanging bolt insertion hole 8... Set screw Insertion hole 10...Insulation nut 15...Intermediate insulation member 16.
... Guide hole 20 ... Set screw 21 ... Head
22...Engagement groove 23...Screw shaft portion 25.
...Rotary tool (bit) 30...Hanging bolt diagram diagram diagram procedure correction written type) December 13, 1990 1゜2゜3, Incident indication 1990 patent application No. 216405 Invention Name Relationship with the case of the person amending the insulation support device for hanging bolts Patent applicant name Optical Equipment Co., Ltd. 4, proxy address 5-14-7 Nishitenma, Kita-ku, Osaka 530 5゜ Date of amendment order Mortar November 13, 1990 Shipping port November 27, 1990 6゜7゜ Column for a brief explanation of the drawings in the specification subject to amendment.

Statement of contents of amendment, page 10, line 2, “Explanation that can be used”
``There are advantages that can be used.

of

Claims (5)

[Claims] (1) A holding frame formed by bending a thin metal plate and having an insertion hole for a suspension bolt and an insertion hole for a set screw in the opposing bottom plate and top plate, respectively; and (1) the suspension bolt is screwed into the holding frame. Therefore, a heat insulating nut (10) made of synthetic resin with high heat insulation properties is held and held inside the bottom plate, a screw shaft protrudes through the insertion hole of the top plate and screwed onto the structure, and the top plate. a head that is locked inside the
a set screw (20
), an intermediate heat insulating member (1) made of a synthetic resin with high heat insulation properties, which is held in place between the heat insulating nut and the head of the set screw, and has a guide hole for a tool for tightening the set screw.
5) A heat insulating support device for hanging bolts comprising: (2) The suspension bolt heat insulation support device according to claim 1, wherein the heat insulation nut and the intermediate heat insulation member are integrally formed. (3) The suspension bolt heat insulation support device according to claim 1, wherein the screw shaft portion of the set screw is a concrete tapping screw. (4) The suspension bolt heat insulation support device according to claim 1, wherein the screw shaft portion of the set screw is an ALC screw. (5) The suspension bolt heat insulation support device according to claim 1, wherein the screw shaft portion of the set screw is a drill screw.