JP3085612U - Under-beam mounting bracket - Google Patents

Abstract

(57) [Problem] To provide an under-beam mounting bracket capable of easily and easily mounting work on an H-shaped steel beam and improving the work efficiency. SOLUTION: A U-shaped frame 10 having a U-shaped opening 9 is formed by upper and lower frame portions 6, 7 and a vertical frame portion 8, and
A metal support body 3 having a horizontal support piece 11 protruding from the left and right sides along the lower side of the U-shaped opening 9 and a screw hole 12 provided in the upper frame 6 is screwed into the screw hole 12. Tightening bolt 4
And a beam lower piece 5 made of a lip channel steel material.
The lower beam piece 5 is arranged on the lower surface side of the shaped steel beam 2,
Is inserted into the lower beam piece 5 and fitted into the lower flange 2a of the H-shaped steel beam 2, and the horizontal support pieces 11, 11 of the fitting body 3 are attached to the lower surfaces of the lip 16, 16 of the lower beam piece 5. And press the tightening bolt 4 against the lower flange 2a to tighten it.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 TECHNICAL FIELD The present invention relates to an under-beam mounting bracket for mounting a member required for construction such as a partition or a wall foundation under an H-shaped steel beam in a steel structure or the like.

[0002]

[Prior art]

 This type of conventional under-beam mounting bracket forms a U-shaped frame having a U-shaped opening which can be fitted into a lower flange of an H-shaped steel beam by upper and lower frame portions and a vertical frame portion, A metal fitting main body having horizontal support pieces protruding on the left and right sides along the upper side of the U-shaped opening and a screw hole provided in the lower frame part, and a screw hole in the lower frame part of the metal body. It consists of a tightening bolt screwed upward from below and a beam lower piece made of channel steel for attaching members required for construction such as partitioning.The beam lower piece has side walls. Are provided with a plurality of bolt insertion holes.

In order to use the under-beam mounting bracket, the U-shaped frame of the bracket body is fitted into the lower flange of the H-shaped steel beam, and the left and right horizontal support pieces are supported on the lower flange. With the beam lower piece made of channel steel with its groove opening sideways and the upper side wall abutted against the lower surface of the U-shaped frame of the bracket main body, the bolt is inserted from the lower side of the upper side wall part of the beam lower piece. By inserting a bolt upward into the hole and screwing it into the screw hole in the lower frame of the bracket main body, the bracket main body is fixed to the H-shaped steel beam, and the beam lower piece is fixed to the bracket main body. .

[0004]

[Problems to be solved by the invention]

 According to the above-mentioned conventional under-beam mounting bracket, when mounting on the H-shaped steel beam, the bolt is passed through the bolt insertion hole in the upper side wall from inside the groove of the beam lower piece made of a channel steel, and the U-shaped frame is formed. Since the screw was screwed into the screw hole in the lower frame, the mounting work of the mounting bracket under the beam was troublesome and time-consuming, and the work efficiency was extremely poor.

[0005] An object of the present invention is to provide an under-beam mounting bracket that can easily and easily perform an installation operation on an H-shaped steel beam and improve the operation efficiency.

[0006]

[Means for Solving the Problems]

 The invention according to claim 1 is an under-beam mounting bracket for mounting a member required for construction such as a partition below the H-shaped steel beam 2, and includes an upper frame portion 6, a lower frame portion 7, and a vertical frame portion. 8 to form a U-shaped frame 10 having a U-shaped opening 9 that can be fitted into the lower flange 2 a of the H-shaped steel beam 2, and at the lower side of the U-shaped opening 9. A metal fitting body 3 having a horizontal support piece 11 protruding on both left and right sides along with a screw hole 12 in the upper frame 6, a fastening bolt 4 screwed into the screw hole 12, and A beam lower piece 5 made of a lip channel steel material for attaching members required for the work, and the beam lower piece 5 with its lip 16 facing upward on the lower surface side of the H-shaped steel beam 2 so as to be orthogonal thereto. , The U-shaped frame 10 of the bracket body 3 is inserted into the groove 17 of the lower beam piece 5, and the lower frame of the H-beam 2 The fastening bolt 4 is attached to the lower flange 2a while the left and right horizontal support pieces 11 and 11 of the metal fitting body 3 are in contact with the lower surfaces of both lips 16 and 16 of the beam lower piece 5. The beam lower piece 5 is fixed to the H-shaped steel beam 2 by pressing and tightening.

According to a second aspect of the present invention, in the under-beam mounting bracket according to the first aspect, one end of the lower beam piece 5 has both side plate portions 14o, 14o and both lip portions 16o except for a bottom plate portion 15o. , 16o are cut off, and the remaining bottom plate portion 15o is bent downward at a right angle so as to be fixed to the wall 21 of the building.

[0008]

[Embodiment of the invention]

 FIG. 1 shows a state in which the under-beam mounting bracket 1 according to the present invention is mounted on an H-shaped steel beam 2, and FIG. 2 is an enlarged perspective view of the under-beam mounting bracket 1. The under-beam mounting bracket 1 includes a bracket main body 3 integrally formed of a steel plate, a tightening bolt 4 attached to the bracket main body 3, and a beam for mounting members required for construction such as a partition. It consists of a lower piece 5.

The metal fitting body 3 has a U-shaped opening 9 that can be fitted into the lower flange 2 a of the H-shaped steel beam 2 by the upper frame 6, the lower frame 7, and the vertical frame 8. In addition to forming the character frame 10, horizontal support pieces 11, 11 protrude from the left and right sides along the lower side of the U-shaped opening 9, and two screw holes 12 are provided in the upper frame 6. It is.

In order to manufacture the metal fitting main body 3, first, as schematically shown in FIG. 3, a steel plate is stamped into a substantially E-shape to form a central upper frame portion 6 and a pair of both sides thereof. A metal frame main body development plate M having a lower frame portion 7,7, a pair of vertical frame portions 8,8 on both sides, and a pair of horizontal support pieces 11,11 on both sides is also formed. Then, by bending the metal fitting body development plate M inwardly at right angles along the folding lines a, a, a U-shaped frame body 10 having a substantially U-shaped cross section is formed. By bending each of the support pieces 11 and 11 outwardly at right angles along the folding line b, a U-shaped opening 9 is formed in the U-shaped frame 10 and the lower side of the opening 9 is formed along the lower side. The horizontal support pieces 11, 11 protrude on both the left and right sides, thereby forming the metal fitting body 3 as shown in FIG. In addition, a screw hole 12 is formed in the upper frame portion 6 of the metal fitting main body development plate M, and a reinforcing rib 13 having an L-shaped cross-sectional circular arc shape is formed from the vertical frame portion 8 to the lower frame portion 7. ing.

As can be seen from FIG. 1, and further from FIGS. 6 and 7, the lower beam piece 5 is opposed to the left and right side plate portions 14 and 14, the bottom plate portion 15, and the upper ends of the both side plate portions 14 and 14 in opposing directions. The lower beam piece 5 is made of a lip channel steel material having projecting lips 16, 16, and has a predetermined length longer than the entire width W (see FIG. 1) of the lower flange 2 a of the H-shaped steel beam 2. Is formed. The groove of the lower beam piece 5 made of the lip channel steel is indicated by reference numeral 17 in the figure. The bracket main body 3 has a U-shaped frame 10 that can be inserted between the lips 16 and 16 of the beam lower piece 5, and a left and right horizontal support piece 11, which is protruded below the U-shaped frame 10. 11 is formed in a size that can be inserted into the groove 17 of the lower beam piece 5.

FIG. 1 and FIG. 4 show the mounting state of the under-beam mounting bracket 1 when, for example, a wall foundation 18 is installed below the H-shaped steel beam 2 in a steel structure. The method of mounting the under-beam mounting bracket 1 in this case will be described. At a required position on the lower surface side of the H-shaped steel beam 2, the beam lower piece 5 is placed with its lip 16 upward so as to be orthogonal to the H-shaped steel beam 2. The U-shaped frame 10 of the metal fitting body 3 is inserted into the groove 17 from both ends of the lower beam piece 5, and each U-shaped frame 10 is fitted to the lower flange 2 a of the H-shaped steel beam 2. At the same time, as shown in FIG. 6, the left and right horizontal support pieces 11, 11 of each metal fitting body 3 are brought into contact with the lower surfaces of the lip 16, 16 of the beam lower piece 5, and in this state, the tightening bolt 4 is removed. The lower beam piece 5 is fixed to the H-shaped steel beam 2 by pressing against the upper surface of the lower flange 2a and tightening. At this time, the lower beam pieces 5 are attached at regular intervals along the longitudinal direction of the H-shaped steel beam 2 by the metal fitting body 3 and the tightening bolts 4 as described above. For the fire prevention treatment, the periphery of the H-shaped steel beam 2 and the lower beam piece 5 may be coated with a fire-resistant coating material such as glass wool or rock wool.

After the beam lower piece 5 is fixed to the H-shaped steel beam 2 by the metal fitting body 3 and the tightening bolts 4 as shown in phantom lines in FIG. 4 and FIG. The upper horizontal rail 19 (channel steel material) is arranged in a direction perpendicular to the wall base 18, and the upper horizontal rail 19 is fixed to the bottom plate 15 of each lower beam piece 5 with screws 23. Although not shown, a lower horizontal rail (channel steel material) is arranged on the floor immediately below the upper horizontal rail 19, and a stud 20 (between the upper horizontal rail 19 and the lower horizontal rail) is provided. The wall base 18 is formed by erection of square steel members at regular intervals in the longitudinal direction of the horizontal rail. A wall board (not shown) is attached to the stud 20.

As described above, the under-beam mounting bracket 1 of the present invention has the under-beam piece 5 arranged on the lower surface side of the H-shaped steel beam 2 with the lip 16 facing upward, and the U-shaped frame of the bracket body 3. 10 is inserted into the groove 17 of the lower beam 5 and fitted into the lower flange 2a of the H-shaped steel beam 2 and the two horizontal support pieces 11, 11 of the metal fitting body 3 are connected to the two lips 16 of the lower beam 5. , 16 are fixed to the H-shaped steel beam 2 by tightening the tightening bolts 4 in contact with the lower surfaces of the H-shaped steel beams 2. Therefore, after the U-shaped frame 10 is inserted into the groove 17 of the lower beam piece 5 and fitted into the lower flange 2a of the H-shaped steel beam 2, the tightening bolt is inserted. 4 only needs to be tightened. Is very simple and easy, and the work efficiency can be improved.

FIG. 5 shows an embodiment of the under-beam mounting bracket 1 in a case where the H-shaped steel beam 2 is provided adjacent to a wall 21 of a steel structure. That is, in this case, as shown in FIG. 7, the lower beam piece 5 has a bottom plate portion 15o at one end thereof, and both side plate portions 14o, 14o and both lip portions 16o, 16o (in a net pattern). Is cut off, and the remaining bottom plate portion 15o is bent downward at a right angle to form a mounting piece.

The beam lower piece 5 is in contact with a required portion on the lower surface side of the H-shaped steel beam 2, with the lip 16 of the beam lower piece upward facing the H-shaped steel beam 2. Then, the bottom plate portion 15o at one end of the beam lower piece 5, that is, the bottom plate portion 15o at one end is brought into contact with the wall portion 21 as shown in FIG. Then, the U-shaped frame 10 of the metal fitting body 3 is inserted into the groove 17 from the other end side of the beam lower piece 5, and the U-shaped frame 10 is fitted into the lower flange 2a of the H-shaped steel beam 2, The left and right horizontal support pieces 11, 11 of the bracket body 3 are brought into contact with the lower surfaces of both lips 16, 16 of the beam lower piece 5, and the tightening bolt 4 is pressed against the upper surface of the lower flange 2a to tighten the beam. The lower piece 5 is fixed to the H-beam 2.

As described above, at one end of the beam lower piece 5, the side plate portions 14o, 14o and both lip portions 16o, 16o are cut off, leaving the bottom plate portion 15o, and the remaining bottom plate portion 15o is directed downward. If it is bent at a right angle and fixed to the wall 21, since the H-shaped steel beam 2 is adjacent to the wall 21 of the building, the bracket main body 3 cannot be inserted into the lower beam piece 5, Even when the fixing by the metal fitting body 3 is not possible, it is possible to fix the beam lower piece 5 in a state where one end side of the lower piece 5 is in contact with the lower surface of the H-shaped steel beam 2.

[0018]

[Effect of the invention]

 According to the under-beam mounting bracket according to claim 1, the lip of the under-beam piece is arranged on the lower surface side of the H-shaped steel beam, and the U-shaped frame of the bracket body is inserted into the under-beam piece to insert the H-shaped steel beam. The beam lower piece is fixed to the H-shaped steel beam by fitting it into the lower flange of the beam and beam, and bringing the two horizontal support pieces of the bracket body into contact with the lower surfaces of both lip of the beam lower piece and tightening the tightening bolt. The tightening bolt can be screwed into the screw hole of the bracket body in advance, and the U-shaped frame is inserted into the groove of the lower beam piece, fitted into the lower flange, and then tightened. Since it only needs to be tightened, the mounting work on the H-shaped steel beam is very easy and easy as compared with the conventional mounting bracket under the beam, and the work efficiency can be improved.

[0021] The under-beam mounting bracket according to claim 2 is obtained by cutting off both side plate portions and both lip portions at one end of the beam-under piece, leaving the bottom plate portion, and bending the remaining bottom plate portion downward at a right angle. It is designed to be fixed to the wall. Even if the H-shaped steel beam is located adjacent to the wall of the building and the main body of the bracket cannot be inserted into the lower part of the beam, and cannot be fixed by the body itself, One end side of the lower beam piece can be fixed in a state of being in contact with the lower surface of the H-shaped steel beam.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a state in which an under-beam mounting bracket according to the present invention is mounted on an H-shaped steel beam.

FIG. 2 is an enlarged perspective view of the under-beam mounting bracket.

FIG. 3 is a front view showing a metal fitting body development plate forming a metal fitting body of the under-beam mounting fitting.

FIG. 4 is a partial cross-sectional side view showing a normal mounting condition of the under-beam mounting bracket.

FIG. 5 is a partial cross-sectional side view showing a state in which an under-beam mounting bracket is attached when an H-shaped steel beam is adjacent to a wall of a building.

FIG. 6 is a sectional view taken along line XX of FIG. 4;

FIG. 7 is an explanatory perspective view illustrating a procedure for forming a mounting piece at one end of the beam lower piece.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Under-beam mounting bracket 2 H-shaped steel beam 2a Lower flange of H-shaped steel beam 3 Hardware main body 4 Tightening bolt 5 Beam lower piece 6 Upper frame 7 Lower frame 8 Vertical frame 9 Opening 10 U-shaped frame 11 Horizontal support piece 12 Screw hole

Claims (2)

[Utility model registration claims] An under-beam mounting bracket for mounting a member required for construction such as a partition below an H-shaped steel beam, wherein the H-shaped steel beam is formed by an upper frame portion, a lower frame portion, and a vertical frame portion. A U-shaped frame body having a U-shaped opening that can be fitted into the lower flange of the U-shaped frame is formed, and horizontal support pieces protrude on both left and right sides along the lower side of the U-shaped opening, and A bracket main body having a screw hole provided in the upper frame portion, a tightening bolt screwed into the screw hole, and a beam lower piece made of a lip channel steel material for attaching a member required for the installation, The lower beam piece is disposed on the lower surface side of the H-shaped steel beam so that its lip is directed upward, and the U-shaped frame of the bracket body is inserted into the groove of the lower beam piece. Fit both the left and right horizontal support pieces of the bracket main body against the lower surfaces of both lips of the beam lower piece. In a state of being, by tightening against the fastening bolt on the lower flange, under beam mounting bracket which is adapted to secure the beam under piece H-shaped steel beam. 2. One end of the beam lower piece is cut off at both side plates and both lip portions, leaving its bottom plate portion, and the remaining bottom plate portion is bent downward at a right angle and fixed to the building wall. The under-beam mounting bracket according to claim 1, wherein: