JPH1077701A - Runner fixing bracket - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make it possible to easily fit a runner, which is used when an insulated inner wall backing panel is set up, to a steel frame beam without deteriorating fire-resisting efficiency of a fire-resisting covering material and fix it to an arbitrary position. SOLUTION: This runner fixing bracket 1 is composed of a mounting bracket 2, which can be fixed to the right and left edges of a lower flange of the steel frame beam, and a backing bracket 3, which can be fixed to the mounting bracket 2, while the mounting bracket 2 is composed of a bracket main body 21 of an upside down hat shape cross section and an engaging spring piece 22 which is fixed to the right and left edges of the bracket main body 21 and includes an engaging part 22a which can be engaged with the right and left edges of the lower flange of the steel frame beam. The backing bracket 3 is composed of a backing material 31 and an engaging spring piece 32 which is fixed to the backing material 31 and includes an engaging part 32a capable of engaging with a long hole 212a formed on the bracket main body 21 of the mounting bracket 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a runner fixing bracket used for installing a heat insulating inner wall base panel.

[0002]

2. Description of the Related Art Conventionally, in a building having a steel structure, when a curtain wall structure is adopted for an outer wall, Japanese Patent Laid-Open No. 8-13 / 1996 has been proposed.
As described in Japanese Patent No. 654, at the time of constructing the inner wall, a heat insulating material is packed in each of the divided frames of the wooden frame material framed in a rectangular shape by the vertical rails and the horizontal rails,
By installing a heat-insulating inner-wall base panel with a waterproof and moisture-proof sheet attached to one side of the floor, separated from the outer wall,
It has been proposed to form an insulated inner wall substrate.

[0003] In the heat insulating inner wall base, a metal fitting body is fixed to an upper end portion of the heat insulating inner wall base panel, a runner is fixed to a floor material in accordance with a steel beam, and a lower end of the heat insulating inner wall base panel is inserted into the runner. It is formed by bringing the metal fitting body into contact with the indoor side edge of the lower flange of the steel beam and biting the fixing member into the indoor edge of the lower flange of the steel beam through the metal body to be fixed. . As a result, the heat insulating property of the indoor space is improved, and at the same time, the ventilation space is secured between the back surface of the outer wall and the heat insulating material to prevent the occurrence of internal dew condensation.

[0004] Further, as shown in FIG. 10, a fireproof specification in which the surface of a steel beam H is covered with a fireproof coating material R formed of rock wool and ceramic fiber or the like is also set.
Although not shown in detail, the refractory coating material R is provided with a wire mesh on its surface so that it does not easily fall off the steel beam H in a fire.

[0005]

However, in the case of forming the heat insulating inner wall base described above, the standing position of the heat insulating inner wall base panel is determined by adjusting the position of the runner fixed to the floor material in accordance with the steel frame and the lower flange of the steel frame. Since it is automatically determined by the metal fitting body abutting on the indoor side edge, in order to erect the heat insulating inner wall base panel closer to the outer wall or to stand further away from the outer wall, the heat insulating inner wall base panel with respect to the outer wall is required. A plurality of types of metal fittings having different sizes according to the standing position are required. Therefore, as long as a single metal fitting body of the same size is used, the distance from the outer wall may be changed depending on the case of trying to secure a wider indoor space, providing a Japanese-style room with a shoji screen, or the relationship with the pillar. It is impossible to erect the heat insulating inner wall base panel.

Further, in a fire-resistant building in which the surface of a steel beam is covered with a fire-resistant coating material, in order to fix the above-mentioned metal body to the steel beam with a fixing member, the metal body is inserted, and the fixing member is further inserted. At the mounting position of the metal fitting body, the fireproof covering material must be largely cut open to expose the steel beam so that it can be fitted. As a result, fire resistance is reduced, and a large amount of work time is required to cut the wire netting mounted on the surface of the fire-resistant covering material over a large area.

[0007] The present invention has been made in view of the above problems, and can be easily attached to a steel beam without deteriorating the fire resistance of the fire-resistant coating material. It is intended to provide a runner fixing bracket which can attach a runner used in the above to an arbitrary position.

[0008]

According to the present invention, there is provided a mounting bracket which can be fixed to a steel beam, and a base metal which can be fixed to the mounting bracket. The mounting bracket includes a horizontal portion and an upper portion extending from both ends of the horizontal portion. A metal body having an inverted hat-shaped cross section including a vertical portion having a long hole formed in the front-rear direction and a contact portion bent outward from an upper end of the vertical portion. An engagement spring piece fixed to the end of each abutting portion of the metal fitting body and having an engagement portion engageable with the left and right edges of the lower flange of the steel beam. Is a base material having a mounting portion and reinforcing portions formed at both ends of the mounting portion, and is fixed to the base material, and is engageable with an elongated hole formed in each vertical portion of the fitting main body of the mounting bracket. And an engagement spring piece having an engagement portion. The lower flange of the steel beam is clamped between the abutting portions of the metal fittings by engaging the engaging portions of the respective engaging spring pieces of the mounting metal with the right and left ends of the mounting bracket, while covering the steel beam with the mounting metal. The fireproof covering material is cut open, and the engaging portions of the respective engaging spring pieces of the base metal fitting are engaged with the elongated holes formed in the respective vertical portions of the metal fitting body of the mounting metal, so that the mounting metal can be connected to the mounting part of the base metal. It is characterized by being sandwiched between.

[0009]

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

FIG. 1 shows a runner fixing bracket according to the present invention.

The runner fixing bracket 1 includes a mounting bracket 2 that can be fixed to the lower flange h1 of the steel beam H, and a base metal fitting 3 that can be fixed to the mounting bracket 2.

First, the mounting bracket 2 includes a horizontal portion 211 and a vertical portion 212 which is bent upward from both ends of the horizontal portion 211 and has an elongated hole 212a formed in the front-rear direction.
And a metal fitting body 21 having an inverted hat-shaped cross section provided with a contact part 213 bent outward from the upper end of the vertical part 212, and rivets are attached to the ends of the respective contact parts 213 of the metal fitting body 21. And the lower flange h1 of the steel beam H
And a pair of engaging spring pieces 22 having engaging portions 22a engageable with left and right edges of the pair of engaging spring pieces 22.
The interval of 2a is set slightly shorter than the width of the lower flange h1 of the steel beam H.
The distance between a and the contact portion 213 of the metal fitting body 21 is
Is set to the thickness of the lower flange h1.

On the other hand, the base metal member 3 is welded by spot welding to a base member 31 having a mounting portion 311 and an inverted U-shaped reinforcing portion 312 formed at both end edges of the mounting portion 311 and the base material 31 as described above. Metal fitting body 2 of mounting metal fitting 2
And an engagement spring piece 32 having an engagement part 32a engageable with a long hole 212a formed in each of the vertical parts 212. The distance between the engagement parts 32a of the pair of engagement spring pieces 32 is The interval is set slightly shorter than the interval between the vertical portions 212 of the metal fitting body 21.

In order to attach the runner fixing metal fitting 1 consisting of the mounting metal fitting 2 and the base metal fitting 3 to the steel beam H, first, the fitting metal 2 is gripped and each engaging spring piece 22 is attached to the steel beam H.
To the left and right edges of the lower flange h1 so that the engagement spring piece 2
2 by its elasticity to open the lower flange h of the steel beam H
1 is engaged with the left and right edges. At this time, since the contact portion 213 of the fitting main body 21 contacts the lower surface of the lower flange h <b> 1 of the steel beam H, the mounting fitting 2 is attached to the engaging portion 2 of the engaging spring piece 22.
2a and the abutting portion 213 of the metal fitting body 21 make the steel beam H
The lower flange h1 is clamped (see FIG. 2).

When the mounting bracket 2 is fixed, together with the mounting bracket 2, the surface of the steel beam H
Attach. When the installation of the refractory coating material R is completed,
The refractory coating material R is cut open by a cutter in accordance with the mounting position of the mounting bracket 2 previously mounted, and the horizontal portion 211 of the bracket main body 21 is exposed (see FIG. 3). In this case, it is sufficient to make a cut so that the engagement spring piece 32 of the base metal fitting 3 can be inserted, and the fire resistance is not reduced. In addition, the wire net of the refractory coating material R is cut in advance with scissors.

Next, by gripping the base metal fitting 3, each engaging spring piece 32 is pressed against each vertical portion 212 of the fitting main body 21 of the mounting fitting 2, and the engaging spring piece 32 is pushed open by its elasticity to thereby open the fitting main body 21. Slots 212 formed in each vertical portion 212
a. At this time, the mounting portion 31 of the base material 31
Since 1 is in contact with the horizontal portion 211 of the bracket main body 21,
The base metal fitting 3 clamps the metal fitting body 21 of the mounting metal fitting 2 between the engaging portion 32a of the engaging spring piece 32 and the mounting portion 311 of the base material 31 (see FIG. 4).

As described above, the mounting bracket 2 can be easily attached to the steel beam H only by pressing the engaging spring piece 22 against the steel beam H, and the groundwork can be easily obtained by simply pressing the engaging spring piece 32 against the mounting beam 2. The metal fitting 3 can be easily attached to the mounting metal 2.

By the way, a runner 4 having a substantially U-shaped cross section is provided with a screw in the base metal fitting 3 of the runner fixing metal fitting 1 so that an upper end portion of a heat insulating inner wall base panel 6 described later can be inserted. It is to be fixed through. At this time, the runner 4 is attached to the mounting portion 3 of the base material 31 of the base metal fitting 3 at a set distance from the reference position.
It is fixed in accordance with the marking line 11. That is, the runner 4 is moved from the standard position where the center of the runner 4 coincides with the center of the steel beam H (see FIG. 5A) or within the range of the length of the base material 31 of the base metal fitting 3 from the standard position to the outside or the room. It can be fixed at a position (see FIGS. 5B and 5C) that has been moved inward by a fixed distance.

On the other hand, the fixture 5 for fixing the lower end portion of the heat insulating inner wall base panel 6 having the upper end inserted through the runner 4 has a length corresponding to the depth of the heat insulating inner wall base panel 6, as shown in FIG. The horizontal portion 51 and a vertical portion 52 bent upward at one end of the horizontal portion 51 are bent in an L-shaped cross section. Is extended. And the fixing bracket 5
Is fixed along the marking line attached to the floor material F in accordance with the fixing position of the runner 4 described above, so that the rear surface of the lower end portion of the heat insulating inner wall base panel 6 abuts the vertical portion 52. It has become.

The heat-insulating inner wall base panel 6 is provided with a heat insulating material 62 such as rock wool or glass wool packed in a divided space of a wooden frame material 61 framed by a vertical rail and a horizontal rail, and waterproofed on one side. It is formed by sticking a moisture-proof sheet (not shown).

Next, a case where the heat insulating inner wall base 10 is formed by the above-described runner fixing fitting 1, runner 4, fixing fitting 5, and heat insulating inner wall base panel 6 will be described with reference to FIG. First, runner fixing bracket 1 is attached to steel beam H
The mounting bracket 2 is attached. That is, each engaging spring piece 22 of the mounting bracket 2 is pressed against the left and right edge of the lower flange h1 of the steel beam H, and the engaging spring piece 22 is pushed open by its elasticity to thereby open the left and right edge of the lower flange h1 of the steel beam H. To clamp the lower flange h1 of the steel beam H with the contact portion 213 of the metal fitting body 21.

Next, the mounting bracket 2 of the runner fixing bracket 1
And a refractory covering material R covering the steel beam H, and a refractory board B such as a calcium silicate plate on the surface of the column.
Attach. Once such refractory coating work is completed,
The refractory coating material R is cut open with a knife in accordance with the mounting position of the mounting bracket 2 previously mounted, and the horizontal portion 211 of the bracket main body 21 is exposed. Thereafter, the base metal fitting 3 is gripped and each engaging spring piece 32 is pressed against each vertical part 212 of the metal fitting body 21 of the mounting fitting 2, and the engaging part 32 a is pushed open to open a long hole formed in each vertical part 212. Then, the metal fitting body 21 of the mounting metal fitting 2 is clamped between the metal fitting 212a and the base material 31.

When the base metal 3 of the runner fixing bracket 1 is mounted, black ink is applied to the mounting portion 311 of the base material 31 at a distance set from a reference position, and the runner 4 is aligned with the black-out line. Place and secure via screws. Further, black ink is applied to the floor material F in accordance with the fixing position of the runner 4, and a plurality of fixing brackets 5 are fixed via screws at regular intervals in accordance with the black lines. As a result, the runner 4 and the fixing bracket 5 are positioned at an accurate distance from a reference position when building a house.

Next, the heat insulating inner wall base panel 6 is gripped,
The upper end is inserted into the runner 4, and the lower end rear surface is brought into contact with the vertical portion 52 of the fixing metal 5, and then the locking piece 53 of the fixing metal 5 is turned upward to return the heat insulating inner wall base panel 4. Adhere to the lower end surface and fix with screws. Hereinafter, similarly, the heat insulating inner wall base panel 6 is erected and sectioned. Thereafter, the inner wall board 7 such as a gypsum board is attached, and the ceiling 8 may be constructed (see FIGS. 8 and 9).

[0025]

As described above, according to the present invention, there are provided a mounting bracket which can be fixed to a steel beam and a base metal which can be fixed to the mounting bracket. The mounting bracket includes a horizontal portion, and both ends of the horizontal portion. A metal part having an inverted hat shape in cross section, comprising a vertical portion having an elongated hole formed in the front-rear direction and being bent outward from an upper end of the vertical portion. A main body and an engaging spring piece having an engaging portion fixed to an end of each abutting portion of the metal fitting main body and capable of engaging with the left and right edges of the lower flange of the steel beam, The base metal fitting has a base material including a mounting portion and reinforcing portions formed at both ends of the mounting portion, and is engaged with the base material and fixed to the base material, and engages with a long hole formed in each vertical portion of the metal fitting body of the mounting metal. And an engagement spring piece having a possible engagement portion. The engagement portions of the respective engagement spring pieces of the mounting bracket are engaged with the left and right ends of the flange to clamp the lower flange of the steel beam between the abutting portions of the bracket main body, while covering the steel beam together with the mounting bracket. The fireproof covering material is cut open, and the engaging portions of the respective engaging spring pieces of the base metal fitting are engaged with the elongated holes formed in the respective vertical portions of the metal fitting body of the mounting metal, so that the mounting metal can be connected to the mounting part of the base metal. By sandwiching between them, it is possible to easily attach it to a steel beam without deteriorating the fire resistance of the fire-resistant coating material, and to use a runner used to lay the heat insulating inner wall base panel within any length within its length range. It can be installed at any position, and the heat insulating inner wall base panel can be installed at a different distance from the outer wall.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a mounting bracket and a base metal which constitute a runner fixing bracket of the present invention.

FIG. 2 is a perspective view showing a state in which a mounting bracket of the runner fixing bracket of the present invention is mounted on a steel beam.

FIG. 3 is a perspective view showing a state where a mounting bracket of the runner fixing bracket of the present invention and a fireproof covering material covering a steel beam to which the mounting bracket is mounted are cut open to expose the mounting bracket.

FIG. 4 is a perspective view showing a state in which a base metal of the runner fixing metal of the present invention is attached to an exposed mounting metal.

FIG. 5 is a sectional view showing a fixing position of the runner to the runner fixing bracket of the present invention.

FIG. 6 is a perspective view showing a fixing bracket.

FIG. 7 is an explanatory view showing a construction state of a heat insulating inner wall base.

FIG. 8 is a longitudinal sectional view of an inner wall having a heat insulating inner wall base.

FIG. 9 is an enlarged view showing a part of the inner wall in FIG.

FIG. 10 is a perspective view showing a fireproof specification in which the surface of a steel beam is covered with a fireproof covering material.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Runner fixing metal fitting 2 Mounting metal fitting 21 Metal main body 211 Horizontal part 212 Vertical part 212a Elongated hole 213 Contact part 22 Engagement spring piece 22a Engagement part 3 Base metal part 31 Base material 311 Mounting part 312 Reinforcement part 32 Engagement spring piece 32a Engaging part 4 Runner 5 Fixture 6 Heat insulating inner wall base panel 10 Heat insulating inner wall base H Steel beam h1 Lower flange R Fireproof coating

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁶ Identification code Agency reference number FI Technical display location E04B 2/56 611 E04B 2/56 611B 631 631A 632 632B 632C 632L 633 633A 633G 644 644B 645 45 645C 6 / 80 1/80 G 2/82 501 2/82 501A

Claims (1)

[Claims] 1. A mounting bracket that can be fixed to a steel beam and a base metal that can be fixed to the mounting bracket, wherein the mounting bracket is bent upward from a horizontal portion and both ends of the horizontal portion. A metal body having an inverted hat-shaped cross section including a vertical portion having a long hole formed in the front-rear direction and a contact portion bent outward from an upper end of the vertical portion; and each contact of the metal body. An engagement spring piece fixed to an end of the portion and having an engagement portion engageable with the left and right edges of the lower flange of the steel beam, wherein the base metal fitting includes a mounting portion and the mounting portion. An engaging spring having a base member provided with reinforcing portions formed at both ends of the base member, and an engaging portion fixed to the base member and capable of engaging with a long hole formed in each vertical portion of the fitting body of the mounting bracket. And mounting brackets at the left and right ends of the lower flange of the steel beam. Engaging the engagement portions of the engagement spring pieces to clamp the lower flange of the steel beam between the abutting portion of the metal fitting body and cutting out the fireproof covering material covering the steel beam with the mounting metal fitting, Characterized in that the mounting portion is clamped between the mounting portion of the base material by engaging the engaging portion of each engaging spring piece of the base metal member with the elongated hole formed in each vertical portion of the metal fitting body. Runner fixing bracket.