JP4863934B2 - C-shape steel mounting bracket for ceiling base mounting - Google Patents

Description

  The present invention relates to a mounting bracket for attaching a C-shaped steel for mounting a ceiling foundation perpendicular to a beam or girder H-beam of a building in the construction of a ceiling foundation.

  In a large building where the roof is, for example, an engraved roof, a C-shaped steel for ceiling base mounting that is arranged so as to be orthogonal to the H-shaped steel is attached to the H-shaped steel used as a beam or girder of the building. The ceiling base is attached to the C-shaped steel. As a mounting device for attaching the C-shaped steel to the H-shaped steel, publicly known documents such as patent gazettes cannot be specifically cited, but conventionally, the C-shaped steel for ceiling base mounting is used as the H-shaped steel for beams or girders. A large and complicated mounting device was used for mounting.

  In a large building where the roof is, for example, an engraved roof, a C-shaped steel for ceiling base mounting that is arranged so as to be orthogonal to the H-shaped steel is attached to the H-shaped steel used as a beam or girder of the building. The ceiling base is attached to the C-shaped steel. In order to attach the C-shaped steel to the H-shaped steel for beams or girders, it has been necessary to use a large and complicated mounting bracket. It took time and work efficiency was poor.

  In view of the above problems, an object of the present invention is to provide a mounting bracket that has a simple structure, is inexpensive to manufacture, and can be easily mounted on an H-shaped steel for beams or girders.

  Means for solving the above-described problems will be described with reference numerals in the embodiments described later. The mounting bracket for the C-shaped steel for ceiling foundation mounting according to the first aspect is an H-shaped steel for beams or girders. 1 is a metal fitting for attaching a C-shaped steel 2 for ceiling foundation mounting orthogonal to the upper plate portion 6A, 6B, the lower plate portion 7A, 7B, and the upper and lower plate portions 6A, 6B, 7A, 7B. , 8B, and a pair of left and right metal half halves 5A, 5B formed so that both the front view and the side view are substantially U-shaped. Each metal half 5A, 5B has an upper plate portion 6A. , 6B and lower plate portions 7A, 7B are respectively provided with bolt insertion holes 9 or tapping holes, and the C-shaped steel 2 is sandwiched from both sides by the side plate portions 8A, 8B of the metal half halves 5A, 5B. The upper half plate of one half metal half 5A is formed by fitting both metal half halves 5A and 5B to each other. 6A and the lower plate portion 7A overlap with the upper plate portion 6B and the lower plate portion 7B of the other bracket half body 5B, respectively, and both the upper plate portions 6A, 6B and C of the metal bracket halves 5A and 5B. The lower flange 1c of the H-shaped steel 1 is fitted between the upper surface of the section steel 2 and the lower plate portions 7A and 7B of the metal fitting halves 5A and 5B and the lower plate portions 7A and 7B are inserted into bolts. The bolts 13 and nuts 14 inserted through 9 are joined by screws or screws screwed into the tapping holes, and the top ends of the bolts 13 or screws on the upper plate portions 6A and 6B are pressed against the lower flange 1c of the H-section steel 1, A bolt 13 or a screw tip on the side of the plate portions 7A, 7B is pressed against the lower surface of the C-shaped steel 2.

  The second aspect of the present invention is the mounting bracket of the C-shaped steel for mounting the ceiling foundation according to the first aspect, wherein each of the bracket halves 5A and 5B is formed by pressing a steel plate shaped into a predetermined shape. Therefore, reinforcing pieces 10 and 11 are integrally projected downward from both side edges of the upper plate portion 6A on one metal half member 5A, and both side edges of the lower plate portion 7B are provided on the other metal half member 5B. The reinforcing pieces 10 and 11 are integrally protruded upward.

  A third aspect of the present invention is the mounting bracket of the C-shaped steel for mounting the ceiling foundation according to the first or second aspect, wherein the tapping hole 12 is provided in one of the side plate portions 8B of both the metal half halves 5A and 5B. With the side plates 8A and 8B of the metal half halves 5A and 5B sandwiching the C-shaped steel 2 from both sides, the screws 15 are inserted into the C-shaped steel from the tapping holes 12 of the side plate 8B of one metal half 5B. It is characterized in that it is screwed into the back surface portion of 2.

  A fourth aspect of the present invention relates to the C-shaped steel mounting bracket for mounting a ceiling foundation according to any one of the first to third aspects of the present invention, wherein the upper half 6A of one bracket half 5A and the upper half bracket 5B of the other bracket half The cushioning material 25 is interposed between the plate portion 6B and between the lower plate portion 7A of one bracket half body 5A and the lower plate portion 7B of the other bracket half portion 5B, respectively. To do.

  The effect of the invention by the above solution will be described with reference numerals in the embodiments described later. According to the mounting bracket 3 of the invention according to claim 1, the pair of left and right bracket halves 5A and 5B are formed in a C shape. From the state where the steel 2 is sandwiched between both sides, the metal half halves 5A and 5B are attached to each other so that the C-shaped steel 2 is sandwiched from both sides by the side plates 8A and 8B of the metal half halves 5A and 5B. In the state in which the upper plate portion 6A and the lower plate portion 7A of one metal fitting half body 5A overlap with the upper plate portion 6B and the lower plate portion 7B of the other metal fitting half member 5B, respectively, The space between the upper plate portions 6A, 6B of the metal half halves 5A, 5B and the upper side surface of the upper flange 2b of the C-shaped steel 2 is fitted into the lower flange 1c of the H-shaped steel 1, thereby 5A, 5B upper plate portion 6A, 6B and lower plate portion 7A, 7B between bolt 13 and nut 4, the tip of the bolt 13 on the upper plate 6A, 6B side is pressed against the lower flange 1c of the H-shaped steel 1, and the tip of the bolt 13 on the lower plate 7A, 7B is made of the C-shaped steel 2. Since it suffices to press against the lower surface of the lower flange 2c, the C-shaped steel 2 can be easily and easily attached and fixed to the lower flange 1c of the H-shaped steel 1. In particular, the mounting bracket 3 is composed of a pair of left and right bracket halves 5A and 5B and a plurality of bolts 13 / nuts 14 or tapping screws. Therefore, the structure is simple, the number of parts is small, and the manufacture is easy and inexpensive. be able to.

  According to the mounting bracket 3 of the invention according to claim 2, each of the bracket halves 5A and 5B is formed by pressing a steel plate material (not shown) cut and shaped into a predetermined shape. Manufacturing becomes easier and mass production can reduce the cost significantly. Further, in this case, reinforcing pieces 10 and 11 are integrally projected downward from both side edges of the upper plate portion 6A on one metal half member 5A, and the lower plate portion 7B is provided on the other metal half member 5B. By projecting the reinforcing pieces 10 and 11 integrally upward from both side edges, sufficient strength can be ensured even when a relatively thin steel plate is used.

  According to the invention which concerns on Claim 3, the tapping hole 12 is provided in any one side plate part 8B of both metal fittings half parts 5A and 5B, and the side plate parts 8A and 8B of both metal parts half parts 5A and 5B are the said. In a state where the C-shaped steel 2 is sandwiched from both sides, a screw 15 is screwed into the back surface portion of the C-shaped steel 2 from the tapping hole 12 of the side plate portion 8B of the one metal half 5B, whereby the longitudinal direction of the C-shaped steel 2 It is possible to prevent the mounting bracket 3 from being displaced with respect to.

  As in the invention according to claim 4, between the upper plate portion 6A of one metal half member 5A and the upper plate portion 6B of the other metal half member 5B, and the lower plate of one metal member half member 5A. When the cushioning material 25 is interposed between the part 7A and the lower plate part 7B of the other metal part half body 5B, when the left and right metal parts half parts 5A, 5B are assembled, the metal parts half parts 5A, 5B When the upper plate portions 6A and 6B or the lower plate portions 7A and 7B are brought into contact with each other, it is possible to prevent annoying metal sound from being generated and to improve the working environment.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, a preferred embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a front view showing a C-shaped steel mounted with a mounting bracket according to the present invention and a ceiling base mounted on the C-shaped steel. 2 (a) is a front view of a state in which the C-shaped steel is attached to the H-shaped steel by the mounting bracket according to the present invention, (b) is a sectional view taken along the line XX of (a), and FIG. FIG. 4 is an enlarged cross-sectional view taken along line YY of FIG. 1. In FIG. 1, reference numeral 1 denotes an H-shaped steel as a beam or a girder provided below a roof of a large building, and includes a web 1a and upper and lower flanges 1b and 1c. Reference numeral 2 denotes a C-shaped steel for ceiling base mounting, which is arranged so as to be orthogonal to the H-shaped steel 1 and is attached to the H-shaped steel 1 by the mounting bracket 3 according to the present invention, and includes a web 2a, upper and lower flanges 2b, 2c and a lip 2d. , 2e, the cross section is formed in a substantially C shape, and the ceiling base 4 is attached to the C-shaped steel 2.

  As can be seen from FIG. 3, the mounting bracket 3 includes the upper plate portions 6A and 6B, the lower plate portions 7A and 7B, and the side plate portions 8A and 8B connecting the upper and lower plate portions 6A, 6B, 7A and 7B. It consists of a pair of left and right metal fitting halves 5A, 5B formed so that the side view is substantially U-shaped.

  The metal half halves 5A and 5B are formed by pressing a steel plate material (not shown) cut and shaped into a predetermined shape, and each metal half halved body 5A and 5B has an upper plate. Bolt insertion holes (or tapping holes) 9 are provided at predetermined positions on the portions 6A and 6B and the lower plate portions 7A and 7B, respectively, and the reinforcing piece 10 is formed on one metal half member 5A from both side edges of the upper plate portion 6A. 11, 11 projecting integrally at a right angle downward, and reinforcing pieces 10, 11 projecting integrally from the both side edges of the lower plate portion 7B at a right angle upward from the other metal part half body 5B. Further, a tapping hole 12 is provided in either one of the metal half halves 5A and 5B, here, in the side plate portion 8B of the half halved body 5B.

  As shown in FIGS. 1 and 4, the ceiling foundation 4 is provided with a plurality of suspension bolts 16 suspended from the ceiling foundation mounting C-shaped steel 2 via suspension bolt hangers 17, and lower ends of the suspension bolts 16. A field edge hanger 18 is attached to the portion with a nut 23, and a field edge receiver 20 for supporting the field edge 19 is bridged between the field edge reception hangers 18, and a plurality of ceiling boards are attached to the field edge receiver 20. Each of the mounting field edges 19 has a known structure in which the clips 21 are attached, and the ceiling plate 22 is attached to the field edge 19 of the ceiling base 4 by nailing.

  As shown in FIG. 4, the hanger 17 for the suspension bolt is composed of a saddle plate piece 17a and a horizontal plate piece 17b extending at a right angle from the lower end portion of the saddle plate piece 17a, and is attached to the upper end portion of the saddle plate piece 17a. Is formed with a substantially downward U-shaped engaging portion 24 engaged with the lower lip 2e of the C-shaped steel 2, and a screw hole 26 into which the hanging bolt 16 is screwed is formed in the horizontal plate piece 17b. With the upper end portion of the suspension bolt 16 screwed into the screw hole 26 of the horizontal plate piece 17b, the engagement portion 24 of the flange plate piece 17a is engaged with the lower lip 2e of the C-shaped steel 2 and the suspension bolt 16 is attached in this state. The suspension bolt 1 is integrally attached to the C-shaped steel 2 by rotating and pressing the upper end surface against the lower surface of the lower flange 2 c of the C-shaped steel 2.

  In order to attach the ceiling base mounting C-shaped steel 2 to the lower flange 1c of the H-shaped steel 1 by the mounting bracket 3, a pair of left and right bracket halves 5A and 5B constituting the mounting bracket 3 are shown in FIG. In this way, from the state where the C-shaped steel 2 is sandwiched and positioned on both sides of the C-shaped steel 2, the double-plated metal halves so that the C-shaped steel 2 is sandwiched from both sides by the side plates 8 A and 8 B of the double-plated metal halves 5 A and 5 B. 5A and 5B are fitted to each other so that the upper plate portion 6A and the lower plate portion 7A of one metal fitting half 5A overlap with the upper plate portion 6B and the lower plate portion 7B of the other metal fitting half divided body 5B, respectively. State. At this time, the metal half halves 5A and 5B are substantially U-shaped in a side view as shown in FIG. 2 (a), and are substantially rectangular in a front view as shown in FIG. 2 (b). It becomes a closed shape.

  In such a state, the lower flange 1c of the H-shaped steel 1 is fitted in the space between the upper plate portions 6A, 6B of the metal half halves 5A, 5B and the upper side surface of the upper flange 2b of the C-shaped steel 2. 2 so that the upper plate portions 6A and 6B and the lower plate portions 7A and 7B of the metal fitting halves 5A and 5B are screwed in advance to the bolt 13 inserted through the bolt insertion hole 9. The nuts 14 and 14 are joined together by tightening, and the top end portion of the bolt 13 on the upper plate portion 6A, 6B side is pressed against the lower flange 1c of the H-section steel 1, and the tip end portion of the bolt 13 on the lower plate portion 7A, 7B side Is pressed against the lower surface of the lower flange 2c of the C-shaped steel 2 so that the ceiling base mounting C-shaped steel 2 is fixed to the lower flange 1c of the H-shaped steel 1 via the mounting bracket 3.

  As shown in FIG. 2 (a), two bolts 13 and 13 are attached to the upper plate portions 6A and 6B of the metal half halves 5A and 5B, and one of the bolts 13 has a tip portion. While pressing against the lower surface of the lower flange 2 c of the C-shaped steel 2, the tip of the other bolt 13 is pressed against the lower surface of the lower flange 2 c of the C-shaped steel 2. Two bolts 13 and 13 are also attached to the upper plate portions 6A and 6B of the metal half halves 5A and 5B, both of which are the lower flanges 2c of the C-section steel 2 Press against the lower side.

  In the description of the above embodiment, the C-section steel 2 is fixed to one place of the H-section steel 1 with one mounting bracket 3 that sandwiches both metal half halves 5A and 5B at one place of the C-section steel 2. In the actual mounting operation, a plurality of C-section steels 2 perpendicular to the H-section steel 1 are assembled to each other on the lower surface side of the plurality of H-section steels 1 arranged side by side. Thus, the mounting bracket 3 is used at each location where the C-shaped steel 2 is orthogonal to the H-shaped steel 1.

  As described above, according to the mounting bracket 3 according to the present invention, from the state in which the pair of left and right bracket halves 5A and 5B are positioned on both sides of the C-shaped steel 2, the both bracket halves 5A and 5A, The metal half halves 5A and 5B are fitted to each other so that the C-shaped steel 2 is sandwiched from both sides by the side plate parts 8A and 8B of 5B, and the upper plate 6A and the lower plate part of one metal half halved body 5A 7A overlaps the upper plate part 6B and the lower plate part 7B of the other metal part half body 5B, and the upper plate parts 6A, 6B of the metal parts half part 5A, 5B and the C-shaped steel 2 The space between the upper side surface of the upper flange 2b is fitted into the lower flange 1c of the H-section steel 1, and the upper plate portions 6A, 6B and the lower plate portions 7A, 7B of the metal fitting halves 5A, 5B are bolted. 13 and a nut 14 screwed onto the bolt 13 and the upper plate 6A, 6B side Since the tip of the bolt 13 is pressed against the lower flange 1c of the H-shaped steel 1, and the tip of the bolt 13 on the lower plate 7A, 7B side is pressed against the lower surface of the lower flange 2c of the C-shaped steel 2, The C-section steel 2 can be simply and easily attached and fixed to the lower flange 1 c of the H-section steel 1. The mounting bracket 3 is composed of a pair of left and right bracket halves 5A and 5B and a plurality of bolts 13 and nuts 14. Therefore, the structure can be simplified, the number of parts can be reduced, and the manufacture can be easily and inexpensively provided. it can.

  Moreover, although the two bolt insertion holes 9 are provided in each of the upper plate portions 6A and 6B and the lower plate portions 7A and 7B of the metal half halves 5A and 5B, only one of them may be provided. In that case, the bolt 13 inserted into the bolt insertion hole 9 on the upper plate 6A, 6B side presses the lower flange 1c of the H-section steel 1 at its tip. In this embodiment, the upper plate portions 6A and 6B and the lower plate portions 7A and 7B are respectively provided with bolt insertion holes 9, and bolts 13 and nuts 14 inserted into the bolt insertion holes 9 are used. It is also possible to use a tapping screw that is provided with tapping holes in the plate portions 6A, 6B and the lower plate portions 7A, 7B and passes through the tapping pins while cutting screws directly.

  In addition, each of the bracket halves 5A and 5B of the mounting bracket 3 is formed by pressing a steel plate material (not shown) cut and shaped into a predetermined shape. Mass production can significantly reduce the cost. Further, in this case, reinforcing pieces 10 and 11 are integrally projected downward from both side edges of the upper plate portion 6A on one metal half member 5A, and the lower plate portion 7B is provided on the other metal half member 5B. By projecting the reinforcing pieces 10 and 11 integrally upward from both side edges, sufficient strength can be ensured even if a relatively thin steel plate is used.

  Like the mounting bracket 3 of the embodiment shown in FIG. 5, between the upper plate portion 6A of the one metal half member 5A and the upper plate portion 6B of the other metal member half member 5B, and one metal member half member. If the cushioning material 25 is interposed between the lower plate portion 7A of 5A and the lower plate portion 7B of the other bracket half body 5B, the bracket half body 5A is assembled when the left and right bracket halves 5A and 5B are assembled. , 5B, or when the lower plate portions 7A and 7B come into contact with each other, it is possible to prevent an unpleasant metallic sound from being generated and to improve the working environment. A rubber plate or the like is used as the buffer material 25.

  FIG. 6 shows another method of using the mounting bracket 3. For example, when the height from the ceiling plate 22 to the ceiling slab S is as high as 8 to 10 m, for example, the C-shaped steel 2 for mounting the ceiling foundation is mounted. The ceiling 3 is suspended from the ceiling slab S by the suspension bolt 31 via the metal fitting 3, and the ceiling base 4 is suspended from the C-shaped steel 2 via the attachment metal 3. In this case, the lower plate portion of the suspension bolt 31 is inserted into the screw insertion hole 9 provided in the upper plate portions 6A, 6B of the metal fitting halves 5A, 5B constituting the mounting bracket 3, and the upper plate portion is formed by the nuts 27, 27. 6A and 6B are joined together, the lower end of the suspension bolt 31 is pressed against the upper flange 2b of the C-shaped steel 2, and the upper end portion of the suspension bolt 16 of the ceiling base 4 is inserted into the screw insertion hole 9 of the lower plate portions 7A and 7B. The lower plate portions 7A and 7B are joined to each other by the nuts 28 and 28, and the upper end of the suspension bolt 16 is pressed against the lower surface of the C-shaped steel 2. The ceiling base 4 is the same as that shown in FIG.

It is a front view which shows the C-section steel attached with the attachment metal fitting which concerns on this invention, and the ceiling base | substrate attached to this. (a) is the front view of the state which attached the C-section steel to the H-section steel with the attachment metal fitting which concerns on this invention, (b) is XX sectional drawing of (a). It is a disassembled perspective view of the mounting bracket which concerns on this invention. It is the YY line expanded sectional view of FIG. The other embodiment of the attachment metal fitting which concerns on this invention is shown, and it is sectional drawing like the cross section along the ZZ line of FIG. It is explanatory drawing which shows the other usage method of the attachment metal fitting which concerns on this invention.

Explanation of symbols

1 H-beam for beam or girder 2 C-shaped steel for ceiling base mounting 3 Mounting bracket 4 Ceiling base 5A, 5B Bracket halves 6A, 6B Upper plate portion 7A, 7B Lower plate portion 8A, 8B Side plate portion 9 Bolt insertion Holes 10 and 11 Reinforcing piece 12 Tapping hole 25 Buffer material

Claims (4)

  It is a bracket for attaching a C-shaped steel for ceiling foundation mounting perpendicular to the H-shaped steel for beams or girders, and the front plate and the side plate connecting the upper and lower plates and the upper and lower plates are either front view or side view. Is formed of a pair of left and right metal fitting halves formed so as to form a substantially U-shape, and each metal fitting half is provided with bolt insertion holes or tapping holes at predetermined positions on the upper plate portion and the lower plate portion, respectively. Both metal half halves are fitted to each other so that the C-shaped steel is sandwiched from both sides by the side plates of both metal half halves, and the upper and lower plate parts of one metal half are the other metal parts. In the state of overlapping the upper plate portion and the lower plate portion of the half-split body, the lower flange of the H-shaped steel is fitted between the upper plate portions of both metal bracket halves and the upper side surface of the C-shaped steel, With the bolts and nuts inserted through the bolt insertion holes between the upper and lower plate parts of both metal half halves or into the tapping holes While joining with screwed in, the top end of the bolt or screw on the upper plate side is pressed against the lower flange of the H-shaped steel, and the tip of the bolt or screw on the lower plate side is pressed against the lower side of the C-shaped steel C-shaped steel mounting bracket for ceiling foundation mounting.   Each metal half is formed by pressing a steel plate that has been shaped into a predetermined shape. One metal half is formed by protruding reinforcing pieces downward from both side edges of the upper plate. The C-shaped steel mounting bracket for ceiling base mounting according to claim 1, wherein reinforcing pieces are integrally projected upward from both side edges of the lower plate portion on the other bracket half.   A tapping hole is provided in one of the side plate portions of both metal half halves, and the side plate portions of both metal half halves sandwich the C-shaped steel from both sides and The mounting bracket of C-shaped steel for ceiling foundation mounting according to claim 1 or 2, wherein a screw is screwed into a back surface portion of the C-shaped steel through a tapping hole.   Between the upper plate of one bracket half and the upper plate of the other bracket half, and between the lower plate of one bracket half and the lower plate of the other bracket half The mounting bracket of C-shaped steel for ceiling foundation mounting according to any one of claims 1 to 3, wherein a cushioning material is interposed between each of the mounting brackets.

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