JP2008150921A - Floor joists with mounting brackets, and floor panels with mounting brackets - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide floor joists with mounting brackets and floor panels with mounting brackets capable of permitting their easy installation work to beams on the job site. <P>SOLUTION: A metal floor joist 4 has an inner cavity and also has an opening 6 at its bottom near the end portion as well as lip portions 24 at both sides of the opening; and it also has a circular shape at its end portion 6a at an opposite side of the end portion of the joist in a length direction of the opening 6. A mounting bracket 2 comprises a bracket main body 7, an locking member 8 and a bolt 9; a portion 6a of a circular end portion of the opening 6 of the joist 4 is set to a temporarily fixed state by being nipped with the bracket main body 7 and the locking member 8; but this temporary fixed state can be released by hitting the bracket main body 7 toward an end portion of the floor joist. When the anti-loosening member 8 and the bracket main body 7 come nearer by using a bolt 9, the lip portion 24 is inserted between the bracket main body 7 and the locking member 8 thereby creating a formally fixed state for the floor joists and panels. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to joists with mounting hardware and floor panels with mounting hardware.

A floor panel provided with a metal joist with an internal cavity on the lower surface side of the floor board is attached as a mounting hardware to the beam, and the mounting hardware is pre-fixed to the floor panel joist in a factory or the like. With the joist of the floor supported by the floor beam, loosen the screws of the mounting hardware by lifting upward to release the temporarily fixed state, sandwich the floor beam, and tighten the screw to make it the final fixed state Conventionally, a floor panel joist that can be attached to a floor beam has been provided.
JP 2005-105638 A

  However, in the floor panel with mounting hardware as described above, the screws of the mounting hardware prior to the floor panel have to be loosened once in the field and then retightened, which makes the field work troublesome. There is a problem that it ends up.

  In view of the problems as described above, it is an object of the present invention to provide a joist with a mounting hardware and a floor panel with a mounting hardware that can facilitate mounting work to a beam in the field.

The above problem is the joist with the mounting hardware to attach the joist to the beam,
The joist is made of a metal made of an internal cavity, has an opening on the bottom surface on the end side, and has a lip portion projecting inward on both sides in the joist width direction of the opening,
Mounting hardware is
A metal body that is arranged on the lower surface side of the joist and puts the beam in the vertical direction in cooperation with the joist,
A retaining material arranged inside the joist,
The metal body and the retaining material are connected through the opening of the joist and can be operated from below the joist, and the retaining material and the hardware body are drawn together. And a drawing shaft material that is fixed in a state of being sandwiched from above and below,
The securing member includes an end on the side opposite to the side of the joist end in the joist length direction of the joist opening and the main fixing meat nipping portion that forms an attachment state to the beam by sandwiching the lip portion. And a meat clamping part for temporary fixing that sandwiches the edge of the part,
The mounting hardware is such that the edge of the end opposite to the side of the joist end in the joist length direction of the joist opening is sandwiched between the hardware main body and the meat clamping portion for temporarily fixing the retaining material. It is in a temporarily fixed state,
In this temporarily fixed state, the temporary fixing state with the edge portion sandwiched is released by hitting and moving the hardware main body toward the joist end, and in this released state, the drawing shaft is used. The retaining material and the hardware body can be further pulled, and by pulling, the metal body and the meat clamping portion for securing the retaining material sandwich the lip portion so that the permanently fixed state is formed. This is solved by the joist with the mounting hardware as a feature (first invention).

  In the joist with mounting hardware, in the temporarily fixed state, the temporarily fixed state is released by hitting and moving the metal body toward the joist end, and in this released state, the retaining shaft and the hardware main body are Can be pulled further, and by pulling, the main body and the meat fixing portion of the retaining material sandwich the lip portion so that the fixed state is formed. After supporting, the metal body is struck to the end of the joist end and displaced, and by simply pulling the retaining material and the metal body with the pulling shaft, this fixed state is formed and the joist is attached to the beam, It is possible to facilitate the work of attaching the joists to the beam on site.

  In particular, in the state where the temporarily fixed state is released, the retaining material and the hardware main body are structured so as to be further drawn by the drawing shaft material, so that the mounting hardware in the released state is less resistant to the mounting position on the beam. It can be moved easily and can be easily attached to the beam.

  In the first invention, the end of the opening opposite to the side of the joist end in the joist length direction may have an arc shape projecting to the peripheral side of the pulling shaft (second process). invention).

  In this case, since the end portion has an arc shape, the margin of the edge portion of the end portion between the hardware main body and the retaining material in the temporarily fixed state can be widened, and a firm temporary A fixed state can be formed.

  In the first aspect of the present invention, an arc-shaped portion surrounding the outer peripheral portion of the attracting shaft along the half circumference is provided at the end opposite to the side of the joist end in the joist length direction of the opening. (3rd invention).

  In this case, since the arc-shaped portion extends along the outer periphery of the pulling shaft member over a half circumference, the margin of the edge portion of the end portion by the hardware main body and the retaining material in the temporarily fixed state is further increased. It is possible to further widen and form a more firmly temporarily fixed state.

  In addition, the above-mentioned problem is similarly achieved by a floor panel with mounting hardware, in which the joist with mounting hardware according to any one of the first to third inventions is mounted on the lower surface side of the floor board. Solved.

  Since the joist with mounting hardware and the floor panel according to the present invention are as described above, it is possible to facilitate the mounting work on the beam in the field.

  Next, the best mode for carrying out the present invention will be described with reference to the drawings.

  The joist 4 with the mounting hardware 2 of the first embodiment shown in FIGS. 1 and 2 is pre-mounted on the lower surface side of the floor board 3 to constitute the floor panel 1, and the mounting hardware 2 shows the floor panel 1. As shown in FIG. 3 (b), it is used to attach to the upper flange 22a of the floor beam 22 made of H-shaped steel having upper and lower flanges and a web connecting these flanges.

  The joist 4 is made of a metal material having an internal cavity, for example, a square steel pipe as shown in the figure, and an opening 6 is provided on the bottom surface on the end side, and both sides of the joist width direction of the opening 6 are provided. Are provided with lip portions 24, 24 projecting inwardly, and an end 6a on the opposite side of the joist end in the joist length direction is formed in an arc shape.

  The mounting hardware 2 is composed of a hardware main body 7, a retaining material 8, and a bolt 9 as a drawing shaft material. In addition, 10 is a washer and 11 is a rubber ring.

  The metal body 7 is disposed on the lower surface side of the joist 4 and is in a mounted state in which the upper flange 22a of the floor beam 22 is sandwiched from above and below in cooperation with the joist 4, and 12 is a claw portion for sandwiching the beam. A bolt through hole 16 is provided on the proximal end side of the claw portion 12, and a pair of rising plate portions 15 and 15 are provided on both left and right sides sandwiching the bolt through hole 16, and each rising plate portion 15, 15 are provided with a pair of horizontally sandwiching plates 14, 14 projecting outwardly at the upper end of the pair 15, and a pair of anti-rotation leg plates 13, at the outer ends of the respective sandwiching plates 14, 14. 13 is provided so as to protrude upward, and a pair of meat sandwiching plate portions 14, 14 are formed on the lower surface portions of the lip portions 24, 24 sandwiching the opening 6 provided on the bottom surface portion of the joist 4. The anti-rotation leg plate portions 13, 13 are in a non-rotating state along both side surfaces of the joists 4. It is adapted to be made.

  The retaining material 8 includes a bottom plate portion 19 that has a screw hole 20 into which a bolt 9 can be screwed and functions as a meat clamping portion for temporary fixing, and a pair of rising plate portions on the left and right sides of the bottom plate portion 19. 18 and 18, and a pair of retaining plate portions 17 and 17 projecting in both horizontal directions are provided on the upper end portions of the rising plate portions 18 and 18, and the projecting plate of the retaining plate portion 17. The part 17a ... is made of a meat sandwiching part for permanent fixing.

  The retaining material 8 is formed so that the retaining plate portions 17, 17 extend in the direction of the length of the opening 6 of the joist 4, so that the whole is brought into the joist 4 through the opening 6. It is designed so that it can be inserted.

  The metal body 7 and the retaining material 8 are configured such that the bolt 9 is passed through the bolt through hole 16 from the lower surface side of the hardware body 7 with its head down, and the tip side is passed through the screw hole 20 of the retaining material 8. The mounting hardware 2 is configured by screwing.

  The retaining member 8 has a bottom plate portion 19 and a rising plate portion 18 in a state in which the rising plate portions 18 and 18 are oriented in parallel with and perpendicular to the rising plate portions 15 and 15 of the hardware body 7. , 18 can fall between the rising plate portions 15, 15 through the pair of anti-rotation leg plate portions 13, 13 of the hardware main body 7, and the rising plate portions 18, 18 of the retaining material 8. With the bottom plate portion 19 of the retainer 8 and the meat sandwiching plate portions 14 and 14 of the metal body 7 in the state of being oriented perpendicular to the rising plate portions 15 and 15 of the metal body 7. 6 can be formed in a temporarily fixed state in which the edge of the arcuate end 6a is sandwiched between the overhanging portions 17a, 17a of the retaining member 8 and the meat sandwiching plate portion 14 of the hardware main body 7. , 14 and bottom opening of joist 4 It is made to be able to form the fixed state sandwiching the both sides of the lip portions 24, 24 which sandwich the upper and lower directions.

  The mounting hardware 2 is attached to the joists 4 of the floor panel 1 in a temporarily fixed state as follows, and constitutes the floor panel 1 with the mounting hardware 2 as shown in FIG. That is, as shown in FIG. 5 (a), the retaining plates 17 and 17 of the retaining member 8 of the mounting hardware 2 are inserted in the joist 4 through the opening 6 in the direction in which the joist 4 extends, As shown in FIG. 5 (b), when the head of the bolt 9 is rotated to rotate the retaining member 8, the protruding portions of the retaining plates 17, 17 of the retaining member 8 are the joists 4. Abutting on the inner wall, the rotation of the retaining member 8 is restricted, and the rotation of the bolt 9 causes the metal body 7 and the retaining member 8 to be drawn. As shown in FIG. 4 (c), even if the bolt 9 is rotated in the reverse direction, the protruding portions of the retaining plate portions 17, 17 of the retaining member 8 abut against the inner wall of the joist 4, and the retaining member 8 is The rotation is restricted, and the metal body 7 and the retaining material 8 can be separated by the rotation of the bolt 9.

  As shown in FIG. 2, the fitting 2 is positioned on the arcuate end 6a side of the opening 6 and the bolt 9 is brought close to or in contact with the arcuate end 6a. As a result, the portion 19a of the bottom plate portion 19 of the retaining member 8 comes into contact with the edge portion of the arcuate end portion 6a, and the meat sandwiching plate portions 14 and 14 of the hardware main body 7 contact the lower surface side of the joist 4. In contact with each other, the edge portion 21 of the arc-shaped end portion 6a is sandwiched between the portion 19a of the bottom plate portion 19 and the meat sandwiching plate portions 14 and 14 to form a temporarily fixed state.

  In this temporarily fixed state, since the end portion 6a of the opening 6 has an arc shape as described above, the pinching allowance 21 by the bottom plate portion 19 of the retaining member 8 is widely secured, and a firmly temporarily fixed state is obtained. It is formed.

  Reference numeral 5 denotes a cushioning material which is attached to the bottom surface of the end of the joist 4 and is interposed between the joist 4 and the upper flange 22a of the floor beam 22. The temporarily fixed mounting hardware 2 is the cushioning material 5 A spacer that protects the cushion material 5 when the floor panel 1 is in a stacked state as shown in FIG. Has been made to function as.

  The floor panel 1 is suspended on the site by a crane or the like, and the end of the joist 4 is supported on the upper surface of the upper flange 22a of the floor beam 22 via the cushion material 5 as shown in FIG. Then, it is attached to the floor beam 22 as follows.

  That is, as shown in FIG. 4A, the hammer body 23 is struck by the hammer 23 toward the end portion of the joist 4. Then, the bottom plate portion 19 of the retaining member 8 slides off the edge portion of the arc-shaped end portion 6a of the opening 6 and comes off from the edge portion 6a to be in a temporarily fixed release state. The rising plates 18, 18 fall downward through the opening 6 of the joist 4, and the overhanging portions 17 a of the retaining material 8 are supported by the lip parts 24, 24 on both sides sandwiching the opening 6 of the joist 4 become.

  In this state, the mounting hardware 2 is moved toward the floor beam 22 as shown in FIG. 4B, and the upper flange 22a of the floor beam 22 is sandwiched between the joist 4 and the claw portion 12 of the mounting hardware 2. As shown in FIG. 4 (c), if the head of the bolt 9 is rotated upward to draw the retaining member 8 and the hardware body 7 together, the retaining member 8 is extended. And the meat sandwiching plate portion 14 of the metal body 7 are in a fixed state by sandwiching the lip portions 24 on both sides of the opening 6 of the joist 4 and at the same time, the claw portion 12 of the mounting hardware 2 An attachment state in which the joists 4 sandwich the upper flange portion 22a of the floor beam 22 is formed.

  As described above, according to the floor panel 1 with the mounting hardware 2, the temporary fixing state is released by hitting the hardware body 7 of the mounting hardware 2 in the temporarily fixed state, and the bolt 9 is rotated to remove the retaining material 8. If the metal main body 7 is further drawn, the meat clamping plate portion 14 of the metal main body 7 and the overhanging portion 17a of the retaining member 8 sandwich the lip portion 24 of the joist 4 to form the main fixing state. Since the panel 1 is attached to the floor beam 22 in a fixed state, the work of attaching the floor panel 1 to the beam 22 at the site can be facilitated.

  In particular, in the state where the temporarily fixed state is released, the retaining member 8 and the metal body 7 are structured so that they can be further drawn by the bolts 9, so that the mounting hardware 2 in the released state can be attached to the floor beam 22. Can be easily moved with little resistance, and can be easily attached to the floor beam 22.

  The floor panel 1 with the mounting hardware 2 of the second embodiment shown in FIG. 6 has a shaft portion of the bolt 9 at the end of the opening 6 of the joist 4 opposite to the joist end in the joist length direction. An arcuate portion 6b is provided that surrounds the outer peripheral portion along a half circumference, and the arcuate portion 6b is arranged along the outer peripheral portion of the shaft portion of the bolt 9 over a half circumference, so that the hardware main body 7 in the temporarily fixed state and The clamping margin 21 of the edge of the arc-shaped portion 6b by the bottom plate portion 19 of the retaining member 8 can be further widened, and a more firmly temporarily fixed state can be formed.

  Although the embodiment of the present invention has been described above, the present invention is not limited to this, and various modifications can be made without departing from the spirit of the invention. For example, in the above-described embodiment, a case is shown in which the floor panel 1 with the mounting hardware 2 is configured such that the mounting hardware 2 is fixed in a temporarily fixed state to the joists of the floor panel 1 provided with the joists 4 on the lower surface side of the floor board 3. However, you may comprise as a joist with the attachment hardware which attached the attachment hardware to the edge part of the joist without a floor board in the temporarily fixed state.

  In the above-described embodiment, the case where the hardware main body 7 having the specific form, the retaining material 8 having the specific form and the pulling shaft material by the bolt 9 are used as the mounting hardware 2 is shown. There is no restriction | limiting in the specific form of a stop material and a drawing shaft material, You may be the attachment hardware comprised by these parts of various forms.

  Further, in the above embodiment, the mounting hardware 2 can be attached to the joist 4 by inserting and arranging the retaining member 8 of the mounting hardware 2 into the joist 4 through the opening 6 of the joist 4. As shown, the bolts passed through the hardware body are inserted into the joists through the openings, and the retaining material is screwed into the joists in the joists through the opening of the joists. It may be designed to be attached.

1A and 1B show a floor panel with mounting hardware according to a first embodiment. FIG. 1A is a partially cutaway sectional perspective view showing the floor panel and mounting hardware in a separated state, and FIG. 2B is an exploded perspective view of the mounting hardware. FIG. FIG. 1 (a) is a cross-sectional front view of a floor panel with a mounting hardware provided with the mounting hardware temporarily fixed, FIG. 2 (b) is a cross-sectional plan view thereof, and FIG. Fig. (A) is a front view of a plurality of floor panels with mounting hardware in a stacked state, and Fig. (B) is a cross-sectional front view of the floor panel with mounting hardware installed on a beam. FIGS. 1A to 1C are cross-sectional front views sequentially showing a method of attaching a joist of a floor panel to a floor beam with an attachment hardware. FIGS. 1A to 1C are cross-sectional plan views showing the relationship between the joist opening and the retaining material, respectively. FIG. 2A is a perspective view of a joist, and FIGS. 2B to 2D are sectional plan views sequentially showing a method of attaching a mounting hardware to a joist in a temporarily fixed state. FIG. 6E is a sectional plan view showing a temporarily fixed state.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Floor panel 2 ... Mounting hardware 3 ... Floor board 4 ... joist 6 ... Opening part 6a ... Arc-shaped edge part 6b ... Arc-shaped part 7 ... Hardware main body 8 ... Stopping material 9 ... Bolt (drawing shaft material)
14 ... Plate part 17 for meat clamping ... Stopping plate part 17a ... Overhang part (Meat clip part for main fixing)
19 ... Bottom plate part (temporarily fixed meat sandwiching part)
22 ... Floor beams
24 ... Lip part

Claims (4)

A joist with mounting hardware that attaches joists to the beam,
The joist is made of a metal made of an internal cavity, has an opening on the bottom surface on the end side, and has a lip portion projecting inward on both sides in the joist width direction of the opening,
Mounting hardware is
A metal body that is arranged on the lower surface side of the joist and puts the beam in the vertical direction in cooperation with the joist,
A retaining material arranged inside the joist,
The metal body and the retaining material are connected through the opening of the joist and can be operated from below the joist, and the retaining material and the hardware body are drawn together. And a drawing shaft material that is fixed in a state of being sandwiched from above and below,
The securing member includes an end on the side opposite to the side of the joist end in the joist length direction of the joist opening and the main fixing meat nipping portion that forms an attachment state to the beam by sandwiching the lip portion. And a meat clamping part for temporary fixing that sandwiches the edge of the part,
The mounting hardware is such that the edge of the end opposite to the side of the joist end in the joist length direction of the joist opening is sandwiched between the hardware main body and the meat clamping portion for temporarily fixing the retaining material. It is in a temporarily fixed state,
In this temporarily fixed state, the temporary fixing state with the edge portion sandwiched is released by hitting and moving the hardware main body toward the joist end, and in this released state, the drawing shaft is used. The retaining material and the hardware body can be further pulled, and by pulling, the metal body and the meat clamping portion for securing the retaining material sandwich the lip portion so that the permanently fixed state is formed. A joist with mounting hardware.   2. The joist with attachment hardware according to claim 1, wherein an end opposite to the joist end in the joist length direction of the opening has an arc shape projecting to the peripheral side of the drawing shaft. .   The arc-shaped part which surrounds the outer peripheral part of a drawing shaft material along a half circumference is provided in the edge part on the opposite side to the joist end part side in the joist length direction of the opening. Joists with mounting hardware described.   A floor panel with mounting hardware according to any one of claims 1 to 3, wherein the joist with mounting hardware is mounted on the lower surface side of the floor board.

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