JP3042983B2 - Metal fittings for building steel - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a metal fitting for a building steel used for fixing a C-shaped steel for a building to a structural body such as a column.

[0002]

2. Description of the Related Art In this type of conventional metal fittings for building steel, C-shaped steel is used as a rim material for building steel.
The C-shaped steel is mounted on a lateral L-shaped support member welded to a pillar or the like. Then, a mounting bracket is arranged on the inner surface of the C-shaped steel, and a bolt is inserted into a hole of the mounting bracket and tightened with a nut, thereby fixing the C-shaped steel to the support member.

[0003]

However, in this conventional fixing bracket for building steel, a mounting bracket is arranged on the inner surface of a C-shaped steel, and a bolt is inserted through a hole of the mounting bracket and tightened with a nut. This is a structure for fixing a C-shaped steel.

For this reason, when the mounting bracket is not positioned with respect to the support member and the bolt is inserted into the hole of the mounting bracket and tightened with the nut, the mounting bracket is rotated and the C-shaped steel is accordingly moved. Cause misalignment. Therefore,
There is a problem that it is difficult to mount the C-shaped steel in a state where it is accurately positioned with respect to the support member.

In addition, when the bolt is inserted into the hole of the mounting bracket and tightened with the nut, the bolt rotates together and there is a problem that the mounting operation for mounting the C-shaped steel to the supporting member cannot be performed quickly.

The present invention has been made by paying attention to such problems existing in the prior art. It is an object of the present invention to provide a fixture for a building steel material that can be attached in a state where the building steel material is accurately positioned with respect to a support member. Another object of the present invention is to provide a fixture for a building steel material that can easily and quickly attach the building steel material to a support member.

[0007]

In order to achieve the above object, according to the first aspect of the present invention, there is provided a support member which is attached and fixed to a building frame and has a pair of engaging projections or engagement recesses. And a mounting bracket having an engaging concave portion or an engaging convex portion that engages with the engaging convex portion or the engaging concave portion, and a support member and a mounting metal are provided with through holes so as to respectively correspond to the mounting member. With the architectural steel material sandwiched between the fitting and the fitting, the engaging protrusion or the engaging recess of the support member is engaged with the engaging recess or the engaging protrusion of the fitting, and a bolt is inserted into the insertion hole. The building steel material can be fixed to the support member by being inserted and tightened with a nut.

In the invention according to claim 2, in the metal fittings for building steel according to claim 1, reinforcing ribs are provided on the support member and the mounting metal. Claim 3
According to the invention described in (1), in the fixture for fixing a steel material for construction according to claim 2, the rib is formed so that a bolt or a nut is prevented from rotating.

Therefore, in the fixing bracket for steel material for building according to the first aspect, the supporting member having the pair of engaging projections or the engaging recesses is attached and fixed to the building frame. With the architectural steel material sandwiched between the support member and the mounting bracket, the engaging convex portion or concave portion of the support member and the engaging concave portion or engaging convex portion of the mounting bracket are engaged. Then, the bolts are inserted into both the insertion holes of the support member and the mounting bracket and tightened with nuts, whereby the building steel material is fixed to the support member.

[0010] For this reason, by engaging the engaging convex portion or the engaging concave portion of the support member with the engaging concave portion or the engaging convex portion of the mounting member, the rotation of the mounting member when the nut is tightened to the bolt. Movement is prevented. Therefore, the building steel material can be accurately positioned and fixed to the support member.

According to a second aspect of the present invention, a reinforcing rib is provided on the supporting member and the mounting bracket. For this reason, both the metal fittings of the support member and the mounting metal are retained in strength by the ribs for reinforcement, deformation is prevented, and the building steel material can be securely fixed to the support member.

According to the third aspect of the present invention, the rib is formed so as to prevent the bolt or the nut from rotating. For this reason, when tightening the nut with respect to the bolt, the co-rotation of the bolt is prevented, and the work of mounting the building steel can be performed quickly.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to FIGS. As shown in FIGS. 1 to 4, the supporting steel 11 as a supporting member is formed in a substantially L-shaped cross section by a metal plate, and its four corners are chamfered. The pair of engaging projections 12 is a support steel 1 as a support member.
A cut is made in parallel on both sides of 1, and the cut portion is bent and protruded so as to swell toward the surface side. The insertion hole 13a is provided in the middle of the pair of engagement projections 12, and is a circular hole through which the bolt 14 can be inserted.

The reinforcing portion 15 is made of a supporting steel 11 as a supporting member.
Are formed so as to protrude toward the inner surface side at the bent portion 16. The rib 17 is formed along the edge of the support steel 11 as a support member, and is formed to protrude inward.

When the support steel 11 as a support member is not attached to the frame of a building such as a pillar 19 by welding, the mounting hole 18 is used to insert the bolt 14 or the like into the support steel 11 as a support member. It is intended to be attached to the skeleton.

As shown in FIG. 1, FIG. 5 and FIG. 6, the mounting bracket 20 is formed in a substantially square plate shape by a metal plate, and both sides are bent in a step shape so as to be higher than the center. I have. A pair of engaging recesses 21 are provided in the center of both sides of the mounting bracket 20 by being cut out in a flat U-shape, so that the engaging recesses 21 can be engaged with the respective engaging protrusions 12 of the supporting steel 11 as the supporting member. I have.

The insertion hole 13b is formed at the center of the mounting bracket 20.
Insertion hole 13a provided in support steel 11 as a support member
The bolt 14 is provided so as to be able to pass therethrough. The pair of reinforcing ribs 22 is formed in parallel with the insertion hole 13b therebetween so as to extend along both side edges, and is formed so as to protrude to the surface side.

Then, a C-shaped steel 23 as a building steel material is placed on the supporting steel 11 as a supporting member along an edge of the supporting steel 11 as a supporting member, and a bolt 14 is inserted into the insertion hole 1.
The mounting bracket 20 inserted through 3b is fitted into the inside of the C-shaped steel 23 and is arranged correspondingly on the supporting steel 11 as a supporting member.
In this state, the bolts 14 are inserted into the insertion holes 13a of the support steel 11 as the support member, and the nuts 24 are tightened, thereby clamping the C-shaped steel 23 between the support steel 11 as the support member and the mounting bracket 20. It has become.

Next, the operation of the fitting for fixing the C-shaped steel 23 of this embodiment will be described. When the C-shaped steel 23 is fixed to the column 19 by using the metal fittings for the C-shaped steel 23, as shown in FIGS. 7 and 8, the support as a support member having an L-shaped cross section is used. The steel 11 is welded so that its outer surface is in contact with the column 19 and joined to the column 19. A plurality of support steels 11 as this support member are installed at predetermined positions at predetermined intervals.

Next, as shown in FIG. 1, the C-shaped steel 23 is turned on the supporting steel 11 as the supporting member so that the opening thereof is on the supporting steel 11 side as the supporting member. It is placed so as to extend straight along the edge of the steel 11. Subsequently, the mounting bracket 20 in which the bolt 14 is inserted through the insertion hole 13b is fitted inside the C-shaped steel 23, and is disposed on the supporting steel 11 as a supporting member. At this time, the engaging recess 21 of the mounting bracket 20 is used as the supporting steel 1 as a supporting member.
The first engaging projection 12 is engaged. In that state, bolt 1
4 is inserted into the insertion hole 13a of the support steel 11 as the support member, and the nut 24 is tightened from below, whereby the C-shaped steel 23 is sandwiched between the support steel 11 as the support member and the mounting bracket 20.

As shown in FIGS. 7 and 8, when the nut 24 is tightened with respect to the bolt 14, the engaging concave portion 21 of the fitting 20 is engaged with the engaging convex portion 1 of the supporting steel 11 as a supporting member.
2, the mounting bracket 20 is prevented from rotating with respect to the supporting steel 11 as a supporting member. Therefore, the movement of the C-shaped steel 23 can be suppressed, and the work of mounting the C-shaped steel 23 can be performed smoothly. Moreover, bolt 14
Since the head of the nut engages with the reinforcing rib 22 of the mounting bracket 20, the operation when the nut 24 is fastened to the bolt 14 can be performed quickly.

The effects exhibited by the above embodiment will be described below. (1) The engagement protrusion 12 of the support steel 11 as the support member and the engagement recess 21 of the mounting bracket 20 are engaged to rotate the mounting bracket 20 when the nut 24 is tightened to the bolt 14. Can be prevented. Therefore, C-section steel 2
3 can be accurately positioned and fixed to the supporting steel 11 as a supporting member. (2) Since the ribs 17 and 22 for reinforcing the supporting steel 11 as the supporting member and the mounting bracket 20 are provided, both the supporting steel 11 as the supporting member and the mounting bracket 20 are provided with the ribs 17 and 22. The strength is maintained by 22 and deformation is prevented, so that the C-shaped steel 23 can be securely fixed to the supporting steel 11 as a supporting member. (3) Reinforcing rib 22 is bolt 14 or nut 24
When the nut 24 is tightened to the bolt 14, the bolt 14
Are prevented from rotating together, and the work of mounting the C-shaped steel 23 can be performed quickly.

The above embodiment can be modified and embodied as follows. (A) An engaging concave portion is provided in the supporting steel 11 as a supporting member, and an engaging convex portion is provided in the mounting bracket 20, so that the engaging concave portion and the engaging convex portion can be engaged.

In this case, the same effects as in the above embodiment can be obtained. (B) The engaging projections 12 of the supporting steel 11 as the supporting member are formed separately, and are joined and fixed to the supporting steel 11 as the supporting member. (C) The width of the opening of the C-shaped steel 23 and the width of the engaging projection 12 of the supporting steel 11 as the supporting member are made substantially the same.

With this configuration, the C-shaped steel 23 can be accurately positioned and fixed to the supporting steel 11 as a supporting member. (D) The fixing fitting of the C-shaped steel 23 in the above embodiment is attached and fixed so that it is upside down. That is, the supporting steel 11 as the supporting member is vertically connected to the column 19, and the mounting bracket 20 is attached and fixed to the supporting steel 11 as the supporting member from below.

With this configuration, the same effects as those of the above embodiment can be obtained. (E) Reinforcing ribs 22 in the mounting bracket 20 are provided at one or three or more locations.

With this configuration, the function of preventing the bolt 14 from rotating can be maintained, and the strength of the mounting bracket 20 can be maintained. Further, a technical idea grasped from the embodiment will be described below. (1) The support steel as the support member is formed by cutting and raising a pair of engaging protrusions, and the mounting bracket is formed by cutting out a pair of engaging recesses that engage with the engaging protrusions. Metal fittings for building steel according to the above.

According to this structure, the engaging projection of the supporting steel as the supporting member and the engaging recess of the mounting bracket can be easily formed, and the engagement between the two can be surely performed. (2) A pair of the reinforcing ribs are formed so as to extend in parallel to both sides of the insertion hole of the mounting bracket.
Metal fittings for building steel according to the above.

With this configuration, the rotation of the bolt or nut can be reliably prevented. (3) The support steel as the support member and a pair of engagement protrusions or engagement recesses of the mounting bracket are formed respectively, and a line connecting them is configured to coincide with a direction in which the building steel material extends. Metal fittings for building steel according to the above.

With this configuration, the positioning of the architectural steel material can be easily performed by using the engaging protrusions or the engaging recesses of the support metal as the support member and the mounting bracket. (4) The building according to claim 1, wherein the building steel material is a C-shaped steel, and an opening thereof is configured to correspond to an engaging protrusion or an engaging recess of a supporting steel as a supporting member and a mounting bracket. Metal fittings for steel.

With this configuration, the supporting metal as the supporting member and the mounting bracket can be engaged using the opening of the C-shaped steel. (5) The fixing bracket for building steel according to claim 1, wherein a plurality of ribs are provided on each of the supporting steel as the supporting member and the mounting bracket.

With this configuration, the strength of the support steel as the support member and the mounting bracket can be improved, and the building steel can be firmly attached to the building frame.

[0033]

The present invention is configured as described above, and has the following effects. According to the invention of the fixing hardware of the building timber material according to claim 1, the engaging convex portion or the engaging concave portion of the support member is engaged with the engaging concave portion or the engaging convex portion of the mounting member. When the bolt and the nut are tightened, rotation of the mounting bracket can be prevented, and the building steel material can be accurately positioned and fixed to the support member.

[0034] According to the second aspect of the present invention, both the supporting member and the mounting bracket are held in strength by the reinforcing ribs, are prevented from being deformed, and the building steel is used as the supporting member. It can be fixed securely.

According to the third embodiment of the present invention, the reinforcing rib is formed so as to prevent the bolt or the nut from rotating, and when the bolt and the nut are tightened,
It is possible to prevent the bolts or nuts from rotating together, and it is possible to easily and quickly attach the building steel material.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing an embodiment of a fixture for building steel materials.

FIG. 2 is a view taken in the direction of arrow A in FIG. 1;

FIG. 3 is a view taken in the direction of arrow B in FIG. 1;

FIG. 4 is a side view of a supporting steel, which is a part of a fixture for building steel.

FIG. 5 is a front view of a mounting bracket which is a part of a fixing bracket for building steel.

FIG. 6 is a side view of a mounting bracket, which is a part of a fixture for building steel.

FIG. 7 is a cross-sectional view showing a state in which a fixture for building steel is attached to a pillar.

FIG. 8 is a sectional view taken along line 8-8 in FIG. 7;

[Explanation of symbols]

11 ... support steel as a support member, 12 ... engagement protrusions of support steel as a support member, 13 a, 13 b ... insertion holes, 14 ...
Bolts, 17 ribs, 19 pillars as building frame
Reference numeral 20: mounting bracket, 21: engagement recess of the mounting bracket, 22: rib for reinforcement, 23: C-shaped steel as a building steel material, 24:
nut.

Claims (3)

(57) [Claims] 1. A support member attached to and fixed to a building body of a building and having a pair of engagement protrusions or engagement recesses, and an engagement recess or engagement protrusion engaged with the engagement protrusions or engagement recesses. A mounting bracket having a portion, a support member and a mounting bracket are provided with insertion holes so as to respectively correspond to each other, and an engagement convex portion of the support member is sandwiched between the support member and the mounting bracket. Alternatively, a building steel material in which an engaging concave portion is engaged with an engaging concave portion or an engaging convex portion of a mounting bracket, and a bolt is inserted through the insertion hole and tightened with a nut, whereby the building steel material can be fixed to a support member. Fixing bracket. 2. The fixing bracket for building steel according to claim 1, wherein reinforcing ribs are provided on the support member and the mounting bracket. 3. The fixture according to claim 2, wherein the rib is formed so that a bolt or a nut is prevented from rotating.