JPH1077704A - 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 an U shape cross section backing material 11 and engaging spring pieces 12, which are fixed to one of the ends and also to the other end of the backing material 11 and include abutting parts 12a that can abut on the under surface of the right and left edges of the lower flange h1 of a steel frame beam H and also engaging parts 12b that can engage with the right and left edges of the lower flange h1 of the steel frame beam H. The respective engaging parts 12b of the engaging spring pieces 12 are engaged with the right and left edges of the lower flange h1 of the steel frame beam H by breaking through the fire-resisting covering material covering the steel frame beam H and held by being sandwiched between the abutting parts 12a.

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. 8, a fireproof specification is set in which the surface of a steel beam H is covered with a fireproof coating material R formed of rock wool and ceramic fiber. 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]

SUMMARY OF THE INVENTION The present invention provides a base material having a U-shaped cross section including a mounting portion and a vertical portion bent upward from both side edges of the mounting portion, and one end of the base material near one end. And a contact portion fixed to the vicinity of the other end, the contact portion being capable of contacting the lower surfaces of the left and right edges of the lower flange of the steel beam, and the engaging portion being capable of engaging with the left and right edges of the lower flange of the steel beam. , And each of the engagement spring pieces is
The engaging portion is formed in a bifurcated shape by cutting out the center portion, piercing the fireproof covering material covering the steel beam, engaging the engaging portion of each engaging spring piece with the left and right edges of the lower flange of the steel beam, It is characterized in that it is clamped between the contact portion.

[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 fixture 1 is attached to the lower flange h1 of the steel beam H,
1 and a base material 11 having a U-shaped cross section and having a vertical portion 112 bent upward from both side edges of the mounting portion 111, and rivets near one end and near the other end of the vertical portion 112 of the base material 11. Abutment portion 12 fixed to the lower surface of the left and right edges of lower flange h1 of steel beam H
a and a substantially U-shaped engaging spring piece 1 having an engaging portion 12b engageable with the left and right edges of the lower flange h1 of the steel beam H.
And an engaging portion 12b of the pair of engaging spring pieces 12.
Is set slightly shorter than the width of the lower flange h1 of the steel beam H.

Each engaging spring piece 12 has a cut-out central portion, so that the engaging portion 12b is formed to have a bifurcated shape and to be tapered toward the distal end. Have been. For this reason, the engagement spring piece 12
Can penetrate and penetrate the refractory covering material R attached over the steel beam H, as described later.

One of the engagement spring pieces 12 is
It is fixed in a state of being inclined at a certain angle with respect to 1.

In order to attach the runner fixing bracket 1 to the steel beam H, the runner fixing bracket 1 is gripped and the engaging portions 12b of the engaging spring pieces 12 are pressed against the left and right edges of the lower flange h1 of the steel beam H. Then, the engagement spring piece 12 is pushed open by its elasticity to engage with the indoor side edge of the lower flange h1 of the steel beam H. At this time, since the contact portion 12a of each engagement spring piece 12 abuts on the lower surface of the left and right edge of the lower flange h1 of the steel beam H, the engagement spring piece 12 becomes the contact portion 12a and the engagement portion. The right and left edges of the lower flange h1 of the steel beam H are clamped by 12b (see FIG. 2).

As described above, each engaging spring piece 12 is connected to the steel beam H
The runner fixing bracket 1 can be easily attached to the steel beam H only by pressing against the left and right edges of the lower flange h1.

By the way, a runner 2 having a substantially U-shaped cross section is fixed to the above-mentioned runner fixing bracket 1 via a screw so that an upper end portion of a heat insulating inner wall base panel 4 described later can be inserted. It has become so. At this time, the runner 2 is attached to the mounting portion 111 of the base material 11 of the runner fixing bracket 1 at a set distance from the reference position.
Is fixed in accordance with the mark-out line attached to.
That is, the runner 2 is moved from the standard position to the outside or the room in the standard position where the center of the runner 2 coincides with the center of the steel beam H (see FIG. It can be fixed at a position (see FIGS. 3B and 3C) that has been moved inward by a fixed distance.

On the other hand, a fixture 3 for fixing the lower end of the heat insulating inner wall base panel 4 having the upper end inserted through the runner 2 has a length corresponding to the depth of the heat insulating inner wall base panel 4, as shown in FIG. The horizontal portion 31 and the vertical portion 32 bent upward at one end of the horizontal portion 31 are bent in an L-shaped cross section. Is extended. And the fixing bracket 3
Is fixed along the marking line attached to the floor material F in accordance with the fixing position of the runner 2 described above, and the vertical portion 32 is in contact with the back surface of the lower end portion of the heat insulating inner wall base panel 4. It has become.

The heat insulating inner wall base panel 4 packs a heat insulating material 42 such as rock wool or glass wool into each of the divided spaces of a wooden frame material 41 framed by a vertical rail and a horizontal rail, and is waterproof 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 2, fixing fitting 3, and heat insulating inner wall base panel 4 will be described with reference to FIG. First, the refractory covering material R is attached to the steel beam H, and a refractory board B such as a calcium silicate plate is attached to the surface of the column. When such a fireproof covering work is completed, a plurality of runner fixing brackets 1 are attached to the lower flange h1 of the steel beam H at regular intervals. That is, the runner fixing bracket 1 is gripped, and each of the engagement spring pieces 12 penetrates through the fireproof covering material R and enters therethrough.
2b is pressed against and engaged with the left and right edges of the lower flange h1 of the steel beam H, and the left and right edges of the lower flange h1 of the steel beam H are clamped together with the contact portion 12a. In this case, the fireproof covering material R only penetrates the four engagement portions 12b, and does not lower the fireproof performance.

As described above, when the runner fixing bracket 1 is attached by the pair of engaging spring pieces 12 sandwiching the left and right edges of the lower flange h1 of the steel beam H, the base material 1 is provided.
Black ink is applied to the first mounting portion 111 at a set distance from the reference position, the runner 2 is arranged in accordance with the black ink line, and is fixed via screws. Further, black ink is applied to the floor material F in accordance with the fixing position of the runner 2, and a plurality of fixing metal members 3 are fixed via screws at fixed intervals in accordance with the black lines. As a result, the runner 2 and the fixture 3 are positioned at an accurate distance from a reference position when building a house.

Next, the heat insulating inner wall base panel 4 is gripped,
The upper end is inserted into the runner 2, and the lower end rear surface is brought into contact with the vertical portion 32 of the fixture 3, and then the locking piece 33 of the fixture 3 is turned upward to turn the heat-insulating inner wall base panel 4. Adhere to the lower end surface and fix with screws. Hereinafter, the heat insulating inner wall base panel 4 is similarly erected and sectioned. Thereafter, the inner wall board 5 such as a gypsum board may be attached, and the ceiling 6 may be constructed (see FIGS. 6 and 7).

[0022]

As described above, according to the present invention, a base material having a U-shaped cross section including a mounting part and vertical parts bent upward from both side edges of the mounting part, A section fixed near one end and near the other end, having a contact portion capable of contacting the lower surface of the left and right edges of the lower flange of the steel beam and an engaging portion capable of engaging with the left and right edges of the lower flange of the steel beam. A substantially U-shaped engaging spring piece is formed, and each engaging spring piece is formed by cutting out a central portion and forming an engaging portion in a bifurcated shape. By engaging the engaging part of the spring piece with the left and right edges of the lower flange of the steel beam and sandwiching it with the abutting part, it can be easily attached to the steel beam without deteriorating the fire resistance performance of the fireproof coating material As well as the runners used to build the heat insulating inner wall base panel. Can be attached in any position within the length range, it is possible to Tatekomu the heat insulating wall base panel by changing the distance from the outer wall.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a runner fixing bracket of the present invention.

FIG. 2 is a side view showing a state where the runner fixing bracket of the present invention is attached to a steel beam.

FIG. 3 is a cross-sectional view showing a fixing position of a runner to a runner fixing bracket of the present invention.

FIG. 4 is a perspective view showing a fixing bracket.

FIG. 5 is an explanatory diagram showing a construction state of a heat insulating inner wall base.

FIG. 6 is a longitudinal sectional view of an inner wall having a heat insulating inner wall base.

FIG. 7 is an enlarged view showing a part of an inner wall in FIG.

FIG. 8 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]

 REFERENCE SIGNS LIST 1 runner fixing metal 11 base material 111 mounting part 112 vertical part 12 engaging spring piece 12 a contact part 12 b engaging part 2 runner 3 fixing metal fitting 4 heat insulating inner wall base panel 10 heat insulating inner wall base H steel beam h1 lower flange R fireproof coating material

──────────────────────────────────────────────────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 base member having a U-shaped cross section including a mounting portion and a vertical portion bent upward from both side edges of the mounting portion, and fixed near one end and the other end of the base material, A substantially U-shaped engaging spring piece having a contact portion capable of abutting on the lower surface of the left and right edges of the lower flange of the steel beam and an engaging portion capable of engaging with the left and right edges of the lower flange of the steel beam; ,
Each engaging spring piece has a notch in a central portion, and an engaging portion is formed in a forked shape. A runner fixing bracket, which is engaged with right and left edges of a flange and is clamped between a contact portion.