JP6427139B2 - Fixed structure of floor material - Google Patents

Description

  The present invention relates to a fixing structure of a floor material for fixing a floor material such as a grating floor to a beam and related techniques.

  A floor material having a plurality of openings is fixed to the beam, and the upper metal fitting placed on the upper surface of the floor material and the side view shape are formed in a U shape, and the width is narrower than the width of the opening of the floor material A lower fitting formed on the upper fitting and a bolt inserted from the upper surface of the upper fitting to connect the upper fitting and the lower fitting, the bolt being tightened and disposed so as to sandwich the flange part of the upper fitting and the beam What makes the angle attitude of a lower metal fitting change, and grasps a beam material is proposed by making distance of (1) close (refer to patent documents 1).

Unexamined-Japanese-Patent No. 2011-184862

  However, since the fixing bracket described in Patent Document 1 is attached in such a manner that the upper bracket is placed on the upper surface of the floor material, the thickness of the upper bracket protrudes from the upper surface of the floor material and the flatness of the floor plate is impaired. There was a problem that. Moreover, when mounting an upper metal fitting on the upper surface of a floor material, the protrusion for anti-slip | sliding may become a hindrance, and the upper metal fitting had restrictions, such as having to be designed in the shape which does not interfere with protrusion.

  An object of the present invention is, in view of the background art described above, to provide a fixing structure of a floor material in which a metal fitting for fixing a floor material to a beam is not protruded to the upper surface of the floor material, and a fixing metal fitting used for this fixing structure.

  That is, this invention has a structure as described in following [1]-[12].

[1] A long plate is provided in the tread plate, and a rib protrudes from the edge of two long sides of the long hole to the back side of the tread plate, and the rib has a slit-like insertion hole extending along the long edge of the long hole in the rib It is the fixed structure of the floor material in which the floor material is fixed to the beam material by the fixing bracket,
The fixing bracket includes an upper fitting engaged with the floor material, a lower fitting engaged with the beam member, and a bolt connecting the upper fitting and the lower fitting.
The upper metal fitting has a plug-in plate in which both ends in the longitudinal direction are inserted into the plug-in holes of the tread plate and provided with a bolt insertion hole at the center, and the plug-in plate has a longitudinal dimension equal to the length of the tread plate The opening is smaller than the opening size in the longitudinal direction of the hole and larger than the opening size in the transverse direction of the elongated hole, and the dimension in the transverse direction is smaller than the opening size in the transverse direction of the elongated hole of the tread plate,
The lower metal fitting is formed such that the upper side and lower side sandwiching the beam member are joined at the base end side to form a U shape in side view, has a screw hole in the upper side, and is longitudinal direction in top view The lateral dimension and the lateral dimension of the tread plate are respectively smaller than the longitudinal aperture dimension and the lateral aperture dimension of the long hole of the tread plate,
The upper fitting and the lower fitting are connected via the bolt by screwing the bolt inserted into the bolt insertion hole of the insertion plate of the upper fitting into the screw hole of the lower fitting,
Both ends of the insertion plate of the upper metal fitting are inserted into the insertion holes of the tread plate by rotating the fixing metal fitting disposed on the back side of the floor of the floor material in a plane parallel to the step metal, and the upper side of the lower metal fitting The beam is sandwiched between the lower part and the lower part, and the upper and lower metal fittings come close to each other by tightening the bolt, and the insertion plate of the upper metal fitting is restrained in the insertion hole and the lower part of the lower metal fitting The fixed structure of the floor material characterized by being pressed against the beam material.

[2] A long plate is provided in the tread plate, and a rib protrudes from the edge of the two long sides of the long hole to the back side of the tread plate, and the rib has a slit-like insertion hole extending along the long edge of the long hole in the rib It is a fixing bracket which fixes a floor material to a beam material,
The fixing bracket includes an upper fitting engaged with the floor material, a lower fitting engaged with the beam member, and a bolt connecting the upper fitting and the lower fitting.
The upper metal fitting has a plug-in plate in which both ends in the longitudinal direction are inserted into the plug-in holes of the tread plate and provided with a bolt insertion hole at the center, and the plug-in plate has a longitudinal dimension equal to the length of the tread plate The opening is smaller than the opening size in the longitudinal direction of the hole and larger than the opening size in the transverse direction of the elongated hole, and the dimension in the transverse direction is smaller than the opening size in the transverse direction of the elongated hole of the tread plate,
The lower metal fitting is formed such that the upper side and lower side sandwiching the beam member are joined at the base end side to form a U shape in side view, has a screw hole in the upper side, and is longitudinal direction in top view The lateral dimension and the lateral dimension of the tread plate are respectively smaller than the longitudinal aperture dimension and the lateral aperture dimension of the long hole of the tread plate,
The upper metal fitting and the lower metal fitting are connected via a bolt by screwing a bolt inserted into a bolt insertion hole of the insertion plate of the upper metal fitting into a screw hole of the lower metal fitting. securing bracket.

  [3] The fixture according to the preceding paragraph 2, wherein the upper fitting has a restriction plate extending from the edge of one long side of the insertion plate along the side face of the lower fitting toward the beam and coming into contact with the upper surface of the beam. .

  [4] The fixture as recited in the aforementioned Item 3, wherein a serrated notch is formed at the lower end of the restriction plate.

  [5] The fixing bracket as recited in the aforementioned Item 3 or 4, wherein the restriction plate has a stopper that protrudes toward the lower fitting side to limit the upper limit position of the lower fitting.

  [6] The fixture according to any one of the above items 3 to 5, wherein the restriction plate has a backing plate at its lower end, which protrudes toward the lower fitting and abuts on the upper surface of the beam.

  [7] In the lower bracket, the upper side has flanges projecting to the lower side at both ends in the lateral direction, and the lower side has flanges projecting to the upper side at both ends in the lateral direction. The fixture in any one of -6.

  [8] The fixing bracket as recited in the aforementioned Item 7, wherein the flange of the lower side portion has a protrusion projecting toward the upper side portion.

  [9] The fixture according to any one of the above items 2 to 8, wherein a spring is mounted between the insertion plate of the upper fitting and the lower fitting of the bolt.

[10] A holder mounted on the fixture according to any one of items 2 to 9 above,
A retainer for fasteners characterized in that a groove for inserting a bolt having an open end is formed at an edge of the base plate on a base plate which is larger than an opening dimension of a floor plate in a lateral direction.

  [11] The holder for a fixing bracket according to claim 10, wherein a support for supporting the insertion plate is provided at a position sandwiching the closed end of the groove so as to protrude from the base plate.

  [12] A long plate is provided in the tread plate, and a rib protrudes from the edge of two long sides of the long hole to the back side of the tread plate, and the rib has a slit-like insertion hole extending along the long edge of the long hole Flooring characterized by.

  According to the fixing structure of the floor material described in the above [1], the fixing bracket can be inserted from the long hole formed in the floor plate of the floor material in a state where the upper bracket, the lower bracket and the bolt are connected. The work of engaging the fixing bracket with the floor material and the beam is the operation of inserting the fixing bracket from the long hole of the tread plate and rotating the fixing bracket to insert the insertion plate of the upper fitting into the insertion hole of the rib of the tread plate. The work of inserting the beam between the upper side and the lower side of the lower fitting while inserting it, and by tightening the bolt and bringing the upper fitting and the lower fitting close to each other, the upper fitting and the floor material are engaged strongly It is an operation to strongly engage the metal fitting and the beam. These operations can be performed from the upper surface side of the tread plate, and the workability is good.

  In addition, the fixing bracket is disposed at a position lower than the upper surface of the floor plate. Therefore, the fixing bracket does not protrude from the upper surface of the tread plate, and the flatness of the tread plate is maintained. Further, even when the anti-slip projection is formed on the upper surface of the tread plate, there is no interference with the fixing bracket, so there is no need to design the fixing bracket according to the protrusion, and the versatility of the fixing bracket is high.

  According to the fixing bracket described in the above [2], the above effect can be obtained in the fixing structure of the floor material in which the floor material provided with the insertion hole in the rib of the long hole of the tread plate is fixed to the beam. .

  According to the fixing bracket described in the above [3], since the distance between the upper fitting and the lower fitting is regulated by the abutment of the lower end of the regulating plate with the beam member, breakage of the insertion hole due to excessive tightening of the bolt is prevented. Ru.

  According to the fixing tool described in the above [4], the notches of the regulating plate bite into the beam to obtain a strong engagement force.

  According to the fixing bracket described in the above [5], since the inclination of the lower bracket is regulated by the stopper, it is possible to prevent the lower bracket from being excessively inclined and detached from the beam at the time of tightening the bolt.

  According to the fixing tool described in the above [6], since the regulating plate abuts on the beam material by the backing plate, the beam material can be stably and strongly held.

  According to the fixing bracket described in the above [7], the flange enhances the strength of the lower fitting.

  According to the fixing bracket described in the above [8], the protrusion of the lower fitting can be strongly engaged with the beam.

  According to the fixing bracket described in the above [9], the parallel posture of the upper fitting and the lower fitting connected by the bolt can be maintained by the elastic restoring force of the spring, and the beam material is smoothed between the upper fitting and the lower fitting. Can be inserted into In addition, since the upper and lower brackets are loosely restrained by the elastic restoring force of the spring, the insertion plate rotates with the lower bracket without rotating when the fixing bracket is rotated by pinching the head of the bolt. The plate can be reliably inserted into the insertion hole of the rib.

  According to the fixture for fasteners described in the above [10], the fastener can be suspended by inserting the shaft of the bolt of the fastener into the groove of the base plate. When the fixing bracket is inserted into the long hole of the floor plate while the fixing bracket is suspended in this manner, the base plate is bridged over the long hole, and the fixing bracket is supported by the tread plate via the base plate, so that falling is prevented.

  According to the holder for a fixing bracket described in the above [11], by supporting the bolt by the base plate and supporting the insertion plate by the support portion, the angular posture of the bolt and the insertion plate is maintained, and thus the upper bracket The parallel posture with the lower bracket can be maintained. By rotating the fixing bracket while maintaining the parallel posture between the inserting plate and the lower fitting, the insertion of the tread plate of the inserting plate into the rib of the tread plate, and between the upper side portion and the lower side portion of the lower fitting. It is possible to smoothly insert the beam material into.

  The flooring as described in said [12] can be utilized as a flooring in said fixed structure.

It is a perspective view showing one embodiment of a fixing structure of a floor material of the present invention. It is a disassembled perspective view of the fixing bracket used for the fixing structure of the floor material of FIG. It is a perspective view which shows the state which fixed the flooring to the beam in the fixed structure of the flooring of FIG. FIG. 4 is a cross-sectional view taken along line 4A-4A in FIG. FIG. 4 is a cross-sectional view taken along line 4B-4B in FIG. It is a perspective view of the other form of the fixing bracket of this invention. It is a perspective view of the further another form of the fixing bracket of this invention. It is a perspective view which shows the holder attached to a fixing bracket, and the attachment method. It is the 7B-7B line sectional view in Drawing 7A. It is sectional drawing of the fixing bracket which mounted | worn the holding tool. It is a top view which shows the state which inserted the fixing bracket which mounted | worn the holding tool in the long hole of a floor board.

[Fixing structure of floor material]
1 to 4B, as an embodiment of the fixing structure of a floor material according to the present invention, a plurality of floor materials are bridged in a direction orthogonal to the beam material on the beam material and arranged without gaps to form the beam material The fixed frame structure will be described. In addition, FIG. 1 and FIG. 3 have drawn only one floor material and one beam material.

  As shown to each figure, the fixing structure of a flooring is comprised by the flooring 1, the beam 2, and the fixture 3. As shown in FIG.

  The floor material 1 is made of metal C-shaped channel material having flanges with lip portions 15 at both ends in the width direction of the tread plate 10, and in the tread plate 10, a plurality of elongated holes 11 extending in the width direction of the tread plate 10 It is provided in a row along the direction. In addition, ribs 12a and 12b which project to the back side of the step board 10 from the edges of the two long sides of the long hole 11 are formed to face each other. Three slit-like insertion holes 13a and 13b for engaging the fixing fitting 3 are formed in a row along the long sides of the long holes 11 in the respective ribs 12a and 12b. The insertion holes 13a and 13b at opposite positions form one set, and the fixing metal fitting 3 can be engaged with each of the three sets of insertion holes 13a and 13b. That is, one long hole 11 can engage the fixture 3 at any one of three positions. Although all the insertion holes 13a and 13b have the same size and an equal distance from the upper surface of the tread plate 10, the positions of the insertion holes 13a and 13b in each set are shifted in the direction away from each other along the long side of the long hole 11 Is formed. The shift direction is the left side when the ribs 12a and 12b are viewed from inside the long hole 11.

  The length of the elongated hole 11, that is, the opening dimension in the longitudinal direction of the elongated hole 11 is P1, and the width of the elongated hole 11, that is, the opening dimension in the lateral direction is P2. Further, the width of the insertion holes 13a and 13b, that is, the opening size in the short direction of the insertion holes 13a and 13b is P3.

  The beam 2 is made of H-shaped steel having flanges 21 at both ends of the web 20, and the floor material 1 is placed on the flange 21.

  The fixing bracket 3 includes an upper fitting 30 engaged with the floor material 1, a lower fitting 40 engaged with the beam 2, and a bolt 50 connecting the upper fitting 30 and the lower fitting 40. ing. Furthermore, a spring 51 attached to the bolt 50 is added.

  The upper metal fitting 30 restricts the posture of the lower metal fitting 40 with respect to the upper metal fitting 30 in contact with the oblong inserting plate 31 whose both ends are inserted into the insertion holes 13a and 13b of the floor material 1 and the side surface of the lower metal fitting 40 At the same time, the lower end is in contact with the beam member 2 and has a restriction plate 32 for restricting the distance between the insertion plate 31 and the lower fitting 40, and the insertion plate 31 and the restriction plate 32 are integrated through the neck portion 36. It is formed. A circular recess 33 into which the head of the bolt 50 is fitted is formed at the center of the insertion plate 31 by half-punch processing, and a bolt insertion hole 34 a is formed at the center of the circular recess 33. Further, in the arc portion at both ends of the insertion plate 31, a thin portion 35 whose thickness is reduced by crushing is formed in a region on the right side in top view. The restriction plate 32 has a substantially rectangular shape in a side view, and is integrally formed with the insertion plate 31 via a neck portion 36 bent at a right angle from the edge of the linear portion of the insertion plate 31. The restricting plate 32 is formed with a stopper 37 for restricting the upper limit position of the lower metal fitting 40 by bending both side portions of the neck portion 36 at the upper end to the lower metal fitting 40 side, and the central portion of the lower end is the same direction as the stopper 37 The cover plate 38 is formed by bending. The projecting dimension of the backing plate 38 from the regulating plate 32 does not exceed the opening dimension P2 in the short direction of the long hole 11 of the floor plate 1, and the bolt insertion hole 34b on the extension of the bolt insertion hole 34a of the insertion plate 32. Are set to the dimensions that can be formed. Further, the lower end of one side of the pressure plate 38 of the regulation plate 32 is cut away to form a serrated notch 39. The tip of the notches 39 of the regulating plate 32 has substantially the same height as the lower surface of the backing plate 38, and the lower side of the regulating plate 32 on the side without the notches 39 is cut away.

  In the top view of the upper fitting 30, the dimension of the insertion plate 31 in the longitudinal direction is Q1, and the dimension in the lateral direction is Q2. The dimension of the restriction plate 32 in the longitudinal direction is Q3, which is larger than the dimension Q1 of the insertion plate 31 in the longitudinal direction. Further, since the restriction plate 32 protrudes from the short side of the insertion plate 31 by the thickness, the dimension Q4 in the short direction of the upper metal fitting 30 is larger than the dimension Q2 in the short direction of the insertion plate 31. large. The projecting dimension of the contact plate 38 is the same as the dimension Q2 in the short direction of the insertion plate 31. Therefore, the upper surface dimension of the upper metal fitting 30 is the longitudinal direction Q3 × the lateral direction Q4.

  The upper metal fitting 30 is manufactured by cutting a metal plate having a plate thickness Q5 into a predetermined contour and bending the insertion plate 31, the stopper 37 and the abutment plate 38, and the thin portion of the insertion plate 31 The thickness 35 is thinner than the thickness Q5.

  The lower metal fitting 40 is a member in which an upper side portion 41 disposed in parallel and a lower side portion 42 shorter than the upper side portion 41 are joined at a base end side and formed in a U shape in side view An insertion space 48 into which the flange 21 of the beam member 2 is inserted is formed between the lower side 41 and the lower side 42. The upper side portion 41 is formed with two screw holes 43a and 43b screwed to the bolt 50 along the longitudinal direction. Of the two screw holes 43a and 43b, one 43b is formed substantially at the center of the upper side 41 in the longitudinal direction, and the other 43a is formed at a position closer to the base end.

  The lower metal fitting 40 is manufactured by bending a metal channel member having a U-shaped cross section in which the flange 45 rises from both ends of the web 44 so that the web 44 is positioned outside and the flange 45 is positioned inside. The two screw holes 43a, 43b are formed in the web 44 of the channel material. Further, at the tip of the lower side portion 42, a serrated notch 47 sharpened toward the upper side portion 41 is formed in the flange 45. The notches 47 correspond to the lower side projections in the present invention.

  In the top view of the lower fitting 40, the dimension in the longitudinal direction is R1, and the dimension in the lateral direction is R2. Since the upper side portion 41 is longer than the lower side portion 42, the dimension in the longitudinal direction of the upper side portion 41 is R1 equal to the dimension in the longitudinal direction of the lower fitting 40.

  In the fixing bracket 3, the spring 51 is attached to the bolt 50 inserted into the bolt insertion hole 34a of the insertion plate 31 of the upper fitting 41, and the upper side 41 of the lower fitting 40 is disposed between the stopper 37 and the backing plate 38. Assemble the bolt 40 in a state where the side of the lower fitting 40 is in contact with the restriction plate 32, screw the bolt 50 into one of the screw holes 43 a and 43 b of the lower fitting 40, and further insert the bolt 50 into the bolt insertion hole 34 b of the backing plate 38. The mounting plate 38 of the upper fitting 40 is assembled under the upper side 41 of the lower fitting 40 by assembling. The screw holes 43a and 43b of the lower fitting 40 to be screwed are appropriately selected according to the positional relationship between the long hole 11 of the step board 10 and the flange 21 so that the lower fitting 40 sandwiches the flange 21 of the beam member 2. In this assembled state, the upper metal fitting 30 and the lower metal fitting 40 maintain an assembled posture in which the insertion plate 31 of the upper metal fitting 41 and the lower metal fitting 42 are parallel due to the elastic restoring force of the spring 51.

  In the top view of the assembled fixing bracket 3, the dimension in the longitudinal direction is R 1 in the longitudinal direction of the lower fitting 40, and the dimension in the short direction is Q 4 in the short direction of the upper fitting 30.

[Dimensional relationship of each part]
The dimensions of each part of the fixing bracket 3 are set so as to have the following magnitude relationship with the dimensions of each part of the floor material 1 and the beam 2.

  The dimension R1 in the longitudinal direction of the fixing bracket 3 is set smaller than the aperture dimension P1 in the longitudinal direction of the long hole 11 of the step board 10 of the floor material 1 and larger than the aperture dimension P2 in the lateral direction. The dimension Q4 in the short side direction of the fixing bracket 3 is set smaller than the opening dimension P2 in the short direction of the long hole 11. Further, the dimension Q1 in the longitudinal direction of the insertion plate 31 of the fixing bracket 3 is set larger than the opening dimension P2 in the lateral direction of the long hole 11, and the thickness Q5 of the insertion plate 31 is of the ribs 12a and 12b. The opening dimension P3 of the insertion holes 13a and 13b is set smaller than the opening dimension P3 in the short direction.

  Further, the height of the upper metal fitting 30 is set to correspond to the vertical distance from the insertion holes 13 a and 13 b of the floor material 1 to the bottom surface of the floor material 1.

  Further, in a state where the fitting plate 38 of the upper fitting 40 is in contact with under the upper side 41 of the lower fitting 40, the fixing fitting 3 extends from the lower surface of the fitting plate 38 to the tip of the tooth 47 of the lower side 42. The vertical distance R3 is set such that the flange 21 of the beam 2 can be inserted.

[How to build a fixed structure for flooring]
The frame structure of the floor material is constructed by fixing the floor material to the beam material in the following procedure.

(1) Preparation work In a mode in which the longitudinal direction of the beam 2 and the longitudinal direction of the floor 1 intersect, the floor 1 is placed over the beam 2. The fixing bracket 3 assembles the upper fitting 30, the lower fitting 40, the bolt 50 and the spring 51. At this time, the bolt 50 is properly tightened, and the distance from the insertion plate 31 of the upper fitting 30 to the insertion space 48 for the lower fitting 40 is from the insertion holes 13 a and 13 b of the floor material 1 to the flange 21 of the beam 2. Make it approximately equal to the distance of

(2) Inserting the Fixing Bracket As shown in FIG. 1, the longitudinal direction of the fixing bracket 3 is aligned with the longitudinal direction of the long hole 11 of the tread plate 10 of the floor material 1, and the fixing fitting 3 is extended from the upper surface of the tread plate 10. Insert in hole 11 Since the planar dimension Q3 × Q4 of the fixing bracket 3 is smaller than the opening dimension P1 × P2 of the long hole 11, the entire fixing bracket 3 can be inserted into the long hole 11.

(3) Rotation of Fixing Bracket As shown in FIG. 3 to FIG. 4B, the inserted fixing bracket 3 is rotated 90 ° clockwise in a plane parallel to the tread plate 10. The rotational direction is a direction approaching the insertion holes 13a, 13b of the ribs 12a, 12b from the thin portion 35 of the insertion plate 31. In the insertion holes 13a and 13b of the ribs 12a and 12b, in which the longitudinal direction of the long hole 11 and the longitudinal direction of the fixation member 3 are orthogonal to each other by the rotation of the fixing member 3, The flange 21 of the beam 2 is inserted into the insertion space 48 of the lower fitting 40, and the flange 21 is sandwiched between the restriction plate 32 and the upper side 41 of the lower fitting and the lower side 42 of the lower fitting 40. Since the upper metal fitting 30 and the lower metal fitting 40 are maintained in the parallel posture by the spring 51, the flange 21 can be smoothly inserted into the insertion space 48. At this time, the front end side of the lower fitting 40 may be slightly raised and inclined to insert the flange 21. At this stage, since the bolt 50 is not tightened and the insertion plate 31 is loosely inserted into the insertion holes 13a and 13b, the lower fitting 40 can be inclined. However, the inclination angle of the lower fitting 40 is regulated by the stopper 37.

  The opposing insertion holes 13a and 13b are provided offset in position in accordance with the rotational direction of the fixing bracket 3, and the insertion plate 31 is inserted from the thin portion 35 into the insertion holes 13a and 13b. 31 is inserted smoothly. Since the dimension Q1 in the longitudinal direction of the insertion plate 31 is larger than the opening dimension P2 in the short direction of the long hole, that is, the distance between the opposing ribs 12a and 12b, both ends of the insertion plate 31 are inserted holes 13a. , 13b are inserted in a penetrating state. In addition, when the fixing bracket 3 is rotated by 90 °, the insertion plate 31 abuts on the end portions of the insertion holes 13a and 13b, and rotation exceeding 90 ° is prevented.

  In addition, since the height of the upper metal fitting 30 is set to correspond to the distance from the insertion holes 13 a and 13 b of the floor material 1 to the bottom surface of the floor material 1, the restriction is performed with the rotation of the fixing metal fitting 3 described above. The notches 39 of the plate 32 rest on the flanges 21 of the beam 2 and the restriction plate 32 does not interfere with the beam 2.

(4) Tightening of bolts The bolts 50 are tightened to bring the upper metal fitting 30 and the lower metal fitting 40 close to each other. Both ends of the insertion plate 31 of the upper fitting 30 are inserted into the insertion holes 13a and 13b and restrained in the vertical direction, so the lower fitting 40 is lifted and the notches 47 of the lower side 42 are the flanges of the beam 2 The flange 21 bites into the back surface of the flange 21 and is pinched by the regulation plate 32 and the lower side 42. At this time, since the notches 39 of the restricting plate 32 of the upper metal fitting 30 abut the beam 2 and the distance between the upper metal fitting 30 and the lower metal fitting 40 is restricted, the insertion holes 13a and 13b due to excessive tightening of the bolt 50 Damage is prevented. Further, the notches 39 provided at a part of the lower end of the regulating plate 32 can bite into the flange 21 to be strongly held. The floor material 1 is strongly engaged with the insertion plate 31 of the upper metal fitting 30 of the fixing metal fitting 3 by the insertion holes 13a and 13b, and the beam material 2 is strongly engaged with the lower metal fitting 40 with the flange 21 1 is fixed on the beam 2.

  In the illustrated fixed structure, the backing plate 38 does not reach the flange 21 due to the relationship between the dimensions of the fixture 3 and the beam 2. However, depending on the dimensions of each part of the fixture 3 and the relationship between the beam 2 Plate 38 may rest on flange 21. In such a case, by slightly causing the notches 39 at the lower end of the restricting plate 32 to slightly protrude from the lower surface of the contact plate 38, the engagement force by the notches 39 can be exhibited.

  Further, since the lower metal fitting 40 sandwiches the beam member 2 at the tip end and is screwed to the bolt 50 at the central or proximal end screw holes 43a and 43b, the lower metal fitting 40 is inclined when the bolt 50 is tightened. Sometimes. However, since the inclination angle is limited by the upper side portion 41 contacting the stopper 37, it is possible to prevent the lower fitting 40 from being detached from the beam 2 due to excessive inclination.

  In the above fixing structure, the fixing bracket 3 is set to a size that can be inserted from the long hole 11 of the step board 10, and the entire fixing bracket 3 is disposed at a lower position than the upper surface of the step board 10 and engaged with the floor material 1 can do. For this reason, the fixing bracket 3 does not protrude from the upper surface of the tread 10 and the flatness of the tread 10 is not impaired. Further, even when the tread plate 10 is provided with the non-slip projection, there is no need to design the fixing bracket in accordance with the projection, and the versatility of the fixing bracket is high. Further, the operation of engaging the fixing bracket 3 with the floor material 1 and the beam 2 is an operation of inserting the fixing bracket 3 from the long hole 11 of the step board 10, an operation of rotating the fixing bracket 3, and tightening the bolt 50. It is work. These operations are operations that can be performed from the upper surface side of the tread 10 and have good workability.

  In the above construction method, the fixing bracket was inserted from the top of the step board, but if there is a work space below the floor, insert the fixing bracket from the side of the floor to the back of the step board and under the long hole The fixing bracket can be engaged with the floor material and the beam by rotating the arranged fixing bracket. Even in the case of laying a plurality of floorings, mounting and fastening the floorings alternately can construct the flooring fixing structure without inserting fixing fixtures from the upper surface of the tread plate. In addition, when there is a work space on the back side of the floor material, it is also possible to fix from the back side.

[Another aspect of fixed structure of floor material]
The fixing structure of the floor material of the present invention is not limited to the above embodiment, and various modifications are possible. In the following description, members given the same reference numerals represent the same or equivalent members, and redundant description will be omitted.

(securing bracket)
The essential members of the fixing bracket are the insertion plate of the upper fitting, the lower fitting and the bolt having a U-shaped side view.

  The presence or absence of the restriction plate is optional in the upper fitting, and each has merits. As described above, when the upper metal fitting 30 has the restriction plate 32, the restriction plate 32 abuts on the beam member 2 to prevent overtightening of the bolt 50, and the difference inserted into the insertion holes 13a and 13b. The load on the contact portion of the insertion plate 31 can be reduced to prevent damage to the ribs 12a and 12b. In particular, since the floor material 1 of the illustrated example is integrally formed with the ribs 12a and 12b in such a manner as to project into the long hole 11 when the long hole 11 is formed in the metal plate, the height of the ribs 12a and 12b is At most, it is limited to 1/2 of the opening dimension P2 in the short side direction of the long hole 11. In addition, the opening size of the elongated hole 11 is also limited due to the function of the tread 10. Since the insertion holes 13a and 13b are formed in the ribs 12a and 12b provided in such long holes 11, there is a possibility that the upper and lower parts of the insertion holes 13a and 13b may become thin and the strength may be reduced. The ribs 12a and 12b can be reinforced by a method such as putting a plate around the insertion holes 13a and 13b, but damage to the ribs 12a and 12b can also be achieved by a method in which the restriction plate 32 prevents overtightening of the bolt 50. It can prevent. On the other hand, in the case where the upper fitting has only the insertion plate without the restriction plate, the insertion plate and the lower fitting can be separately rotated. Even when they are not orthogonal to each other, the lower metal fitting can be rotated at an optimal angle and engaged with the beam. Also, the presence or absence of the stopper 37 is optional.

  Moreover, it is not limited to providing the circular recessed part 33 in the insertion plate 31 either. The circular recess 33 is formed to lower the position of the bolt 50 so that the bolt 50 does not protrude from the upper surface of the tread plate 10. Therefore, the presence or absence of the circular recess 33 is set according to the positions of the insertion holes 13a and 13b, the height of the head of the bolt 50, the thickness of the insertion plate 31, and the like.

  Further, the presence or absence of the backing plate at the lower end of the regulation plate and the presence or absence of the notches and the like are optional.

  The upper metal fitting 60 of the fixing metal fitting 4 shown in FIG. In the fixing fitting 4 using the upper fitting 60 having no backing plate, the beam member 2 is held between the upper end 41 of the lower fitting 70 or the lower end of the restriction plate 61 and the lower side 42. When the lower fitting 70 is lifted by the tightening of the bolt 50, the upper side portion 41 is separated from the beam 2, and the engagement force with the beam 2 is reduced. In such a case, a projection 46 is provided at the tip of the upper side 41 of the lower fitting 70, and the lower fitting 70 is slightly inclined so that the bolt 50 is tightened. By pressing the upper surface 21 and pressing the notches 47 of the lower side 42 against the back surface of the flange 21, the flange 21 can be strongly held. The lower fitting 70 can also be engaged with a flange thicker and thinner than the vertical distance R4 from the tip of the projection 46 of the upper side 41 to the tip of the notch 47 of the lower side 42. With respect to a flange thicker than the vertical distance R4, the flange can be held between the projection 46 of the upper side portion 41 and the notches 47 of the lower side portion 42 by inclining so as to lower the base end side of the lower fitting 70. . With respect to the flange thinner than the vertical distance R4, the flange can be held between the projection 46 of the upper side portion 41 and the notches 47 of the lower side portion 42 by inclining so as to lower the front end side of the lower fitting 70. When the upper fitting 60 having no backing plate is combined, it is easy to make the angle of the lower fitting 70 more flexible than the upper fitting having the backing plate, and therefore it is possible to cope with beams having different thicknesses. However, since the posture of the lower fitting 70 is regulated by the stopper 37 of the upper fitting 30, the angle at which the upper side 41 abuts against the stopper 37 is the maximum inclination angle that can be set.

  The upper bracket 80 of the fixing bracket 5 shown in FIG. 6 avoids a portion where the backing plate 81 interferes with the base end side connecting portion of the upper side portion 41 and the lower side portion 42 of the lower bracket 40 and A bolt insertion hole 34b is provided on an extension of the bolt insertion hole 34a of the insertion plate 31 in a region from the portion to one end. Moreover, the lower part of the area | region where the said control board 82 does not have the reliance board 81 is notched. Although the restriction plate 82 is not formed with notches at the lower end, the contact area with the beam material is enlarged by the backing plate 81, so that the engagement force is higher than that in a line shape by the thickness of the restriction plate 82. Can.

  The lower metal fitting is formed in a U-shape in a side view to sandwich the beam material between the upper side and lower side, but the length of the upper side and lower side is appropriately set according to the shape of the beam can do. The lengths of the upper and lower sides may be the same or different. In the illustrated example, the lower side parts 42 to be interfered with the web 20 are designed to be shorter than the upper side parts 41 in order to sandwich the flanges 21 of the beam 2 made of H-shaped steel material. Further, although the presence or absence of the flange 45 in the upper side portion 41 and the lower side portion 42 is optional, the lower fittings 40, 70 having the flange 45 have high strength. Furthermore, by forming the U-shape in a cross-sectional view by the flange 45, a storage space of the tip end portion of the bolt 50 can be secured, and the formation of the projection 46 and the notches 47 is easy. Furthermore, although the presence or absence of the protrusions 46 and the notches 47 of the flange 45 is optional, the formation of the protrusions 46 and the notches 47 can concentrate the clamping force and increase the engagement force.

  As described above, the spring holds the parallel posture between the upper and lower fittings, and has the effect of smoothly inserting the flange into the insertion space by the rotation of the fixing fitting. In addition, since the upper and lower brackets are loosely restrained by the elastic restoring force of the spring, if the head of the bolt is pinched and the fixing bracket is rotated, the insertion plate rotates with the lower fitting without rotating, so the difference The insertion plate can be reliably inserted into the insertion hole of the rib. Since the upper brackets 30, 60, 80 of the illustrated example have the regulating plates 32, 61, 82, the lower brackets 40, 70 push the regulating plates 32, 61, 82 when the head of the bolt 50 is rotated. The idle rotation of the plug plate 31 does not occur. However, in the upper fitting not having the restriction plate, the spring helps prevent the plug plate from idling.

  The means for maintaining the parallel attitude between the upper and lower brackets is not limited to the spring incorporated in the fixing bracket. Since the lower fitting and the bolt are screwed together, the angular attitude between the bolt and the lower fitting is naturally maintained by the assembly of the fixing fitting. Therefore, if the angular attitude of the bolt and the insertion plate is maintained, the parallel attitude between the upper and lower fittings can be maintained.

  FIGS. 7A and 7B show a holder 100 for holding the bolt 50 and the insertion plate 31 in an angular position by being attached to a fixing bracket not incorporating a spring. The fixing bracket of the illustrated example is the fixing bracket 5 shown in FIG. 6, and is assembled without additionally mounting a spring.

  The holder 100 is made of a molded product of a resin plate. The holder 100 is formed with a groove 102 having an open end 102a on one short side of a rectangular base plate 101 and extending toward the center, and is supported at a position sandwiching the closed end 102b of the two long sides of the groove 102 The portion 103 is provided to protrude from the base plate 101. The long side of the base plate 101 is sufficiently larger than the opening dimension P2 in the width direction of the long hole 11 of the floor material 1 and is set to a size that can be bridged in the long hole 11 when inserting the fixing bracket 5 described later (See Figure 9). The width of the groove 102 is set to fit into the screw groove of the bolt 50, and the depth of the groove 102, that is, the distance from the open end 102a to the closed end 102b is the open dimension P2 of the elongated hole 11 in the short direction. It is set sufficiently larger than 1/2. The support portion 103 is U-shaped in cross section, and a strip-like plate extended from the base plate 101 is bent in an arc shape to make the tip end portion 103 a inward, and the tip end portion 103 a is formed substantially parallel to the base plate 101. From the end of the one support portion 103 (the bottom of the U-shaped cross section) to the end of the other support portion 103, the insertion plate 31 is set to fit in the longitudinal direction. Further, in the holder 100, an area without the groove 102 of the base plate 101 is used as the operation unit 104.

  As shown in FIG. 7A and FIG. 8, the fixing bracket 5 is adjusted so that the head of the bolt 50 protrudes long from the insertion plate 31. Then, the axis of the bolt 50 is inserted from the open end 102 a of the groove 102 of the base plate 101 of the holder 100 so that the head protrudes above the base plate 101 and the fixing fitting 5 is slid to the closed end 102 b. The both ends are inserted into both of the support portions 103, and the holding fixture 100 is attached to the fixing bracket 5. In this mounted state, the longitudinal direction of the insertion plate 31 of the fixing bracket 5 is orthogonal to the long side of the base plate 101, the bolt 50 is supported at a right angle to the base plate 101, and the insertion plate 31 is the tip of the support portion 103. It is supported from below by the part 103a. Since the base plate 101 of the holder 100 and the tip end portion 103a of the support portion 103 are parallel to each other, the bolt 50 and the plug-in plate 31 are maintained at a right angle attitude. Since the angular posture of the bolt 50 and the lower fitting 40 is fixed by screwing the bolt 50, the parallel posture of the insertion plate 31 of the upper fitting 30 and the lower fitting 40 is maintained.

  As shown in FIG. 9, the head of the bolt 50 of the fixing bracket 5 to which the holder 100 is attached is pinched and inserted from the long hole 11 of the floor plate 1. The longitudinal direction of the long hole 11 and the longitudinal direction of the base plate 101 are orthogonal to each other by the supporting posture of the fixing bracket 5 by the holder 100, the base plate 101 is bridged over the long hole 11, and the base plate 101 is supported by the tread 10 The fixing bracket 5 supported by the holder 100 is suspended in the long hole 11. The head of the bolt 50 is on the base plate 101 and protrudes from the tread plate 10. However, the bolt 50 is adjusted so that the insertion plate 31 has the same height as the insertion holes 13a and 13b of the ribs 12a and 12b of the floor plate 1. When the head of the bolt 50 of the fixing bracket 5 is pinched and rotated 90 °, the insertion plate 31 removed from the support portion 103 of the holder 100 is inserted into the insertion holes 13a and 13b of the ribs 12a and 12b of the floor plate 1. The flange 21 of the beam member 2 is inserted into the insertion space of the lower fitting 40 by being inserted. As long as the base plate 101 is bridged in the long hole 11 and the open end 102a of the groove 102 is closed by the step board 10, the bolt 50 does not fall out of the groove 102 and there is no possibility that the fixing bracket 5 falls during rotation. If the fixing bracket 5 is inserted into the insertion plate 31 into the insertion holes 13a and 13b, there is no possibility that the fixing bracket 5 will fall, so the holder 100 is removed from the fixing bracket 5. When the fixing bracket 5 is rotated by 90 °, the insertion plate 31 is completely detached from the support portion 103 and only the bolt 50 is engaged with the holder 100. Therefore, the operation portion 104 of the base plate 101 is picked up and pulled up. The bolt 50 is removed from the open end 102 a of the groove 102, and the holder 100 is removed from the fixture 5.

  After removing the holder 100 from the fixing bracket 5, as in the case of using the fixing bracket equipped with a spring, tighten the bolt 50 to strongly engage the three members of the floor material 1, the fixing bracket 3 and the beam 2 Let

  It is necessary to hold the parallel posture of the upper and lower brackets when rotating the fixing bracket inserted from the long hole of the floor plate. As shown in FIG. 4A and FIG. 4B, since the spring 51 is incorporated inside at the time of assembling the fixing bracket, it can not be taken out of the fixing structure even after the fixing of the floor material is completed. As it can be pulled out, it can be used repeatedly. Further, since the insertion plate 31 and the bolt 50 are engaged with the holder 100, they are mounted on the fixing bracket regardless of the presence or absence of the restriction plate and the shape of the restriction plate, and the parallel posture of the insertion plate and the lower member Can be held. The holder 100 can also be applied to the fixture 3 of FIG. 2 and the fixture 4 of FIG. 5.

  Further, since the parallel posture of the upper and lower brackets can be maintained by mounting the spring on the fixing bracket, it is sufficient if the holder mounted on the spring-attached fixing bracket has a fall preventing function. Therefore, it is sufficient if the holder has a base plate and a groove formed in the base plate, and a holder without a support is also included in the technical scope of the present invention. In addition, even if it mounts | hangs the holder with a support part to the fixing bracket with a spring, a fixing bracket can be engaged with a floor material and a beam, without a trouble.

(Flooring)
It is sufficient if at least one long hole of the floor plate is formed at a position where the fixing metal fitting is engaged with the beam, and the presence or absence of the long hole other than the engagement position and the formation position can be arbitrarily set. In addition, since the fixing bracket can be freely rotated below the tread plate, and the upper bracket and the lower bracket without the restriction plate can be rotated at different angles, the long hole is formed in the longitudinal direction of the beam. It is not limited that the longitudinal direction of is orthogonal. Therefore, for example, a floor material in which elongated holes are arranged in tandem, a floor material in which elongated holes are arranged diagonally, a projection for anti-slip is formed over the entire upper surface of the tread plate, and for fixing fitting insertion only at the attachment position to the beam The fixing structure of the present invention can also be applied to a floor material provided with long holes.

  In addition, although it is sufficient if a pair of insertion holes are formed in the facing ribs of the insertion holes of the floor material, it is also possible to provide a plurality of sets of insertion holes 13a and 13b like the floor material 1 of the illustrated example. it can. By providing a plurality of sets of insertion holes, the insertion hole at the optimum position can be selected according to the positional relationship between the floor material and the beam material, so that the restriction on the positional relationship between the floor material and the beam material is relaxed.

  In addition, although a space for arranging the fixture between the floor material and the beam is required, as in the illustrated example, by using a C-shaped channel material as the floor material 1, a fixture arrangement space is formed, and a tread plate It is also possible to form a fixture arrangement space by installing a spacer between the and the beam.

  Furthermore, the insertion hole which is not engaged with a fixing bracket can be utilized for piping or attachment of a lighting fixture.

(Beam)
The beam member may have a plate-like portion having a thickness capable of being inserted into the lower fitting at the engagement portion with the lower fitting of the fixing fitting, and in addition to the H-shaped steel of the illustrated example, an I-shaped steel It may be a material or the like. In addition, since there is a space where the lower side of the lower fitting enters below the engagement portion of the beam, the fixing fitting can be attached, so that it is possible to use other than the above-described fixed-shaped material.

(Others)
Furthermore, the fixing structure of the floor material of the present invention can be applied to the construction of a wall surface by changing the beam material to a column material and changing the floor material to a wall surface material.

  The fixed structure of the floor material of the present invention can be used to construct a grating floor or the like.

DESCRIPTION OF SYMBOLS 1 Floor material 2 Beam 3, 4, 5 Fixing bracket 10 Footplate 11 Long hole 12a, 12b Rib 13a, 13b Insertion hole 30, 60, 80 ... Upper fitting 31 ... Insertion plate 32, 61, 82 ... restriction plates 34a, 34b ... bolt insertion holes 37 ... stoppers 38, 81 ... contact plates 39 ... serrated notches 40 ... lower brackets 41 ... upper sides 42 ... lower sides 43a, 43b ... screw holes 45 ... flange 47 ... notches (protrusions)
48: Insertion space 50: Bolt 51: Spring 100: Holder 102: Groove 103: Support portion

Claims (12)

The floor plate is provided with a long hole, and a rib is projected from the edge of the two long sides of the long hole to the back side of the step plate, and the floor material has a slit-like insertion hole extending along the long side of the long hole in the rib It is a fixing structure of a floor material fixed to a beam material by a fixing bracket,
The fixing bracket includes an upper fitting engaged with the floor material, a lower fitting engaged with the beam member, and a bolt connecting the upper fitting and the lower fitting.
The upper metal fitting has a plug-in plate in which both ends in the longitudinal direction are inserted into the plug-in holes of the tread plate and provided with a bolt insertion hole at the center, and the plug-in plate has a longitudinal dimension equal to the length of the tread plate The opening is smaller than the opening size in the longitudinal direction of the hole and larger than the opening size in the transverse direction of the elongated hole, and the dimension in the transverse direction is smaller than the opening size in the transverse direction of the elongated hole of the tread plate,
The lower metal fitting is formed such that the upper side and lower side sandwiching the beam member are joined at the base end side to form a U shape in side view, has a screw hole in the upper side, and is longitudinal direction in top view The lateral dimension and the lateral dimension of the tread plate are respectively smaller than the longitudinal aperture dimension and the lateral aperture dimension of the long hole of the tread plate,
The upper fitting and the lower fitting are connected via the bolt by screwing the bolt inserted into the bolt insertion hole of the insertion plate of the upper fitting into the screw hole of the lower fitting,
Both ends of the insertion plate of the upper metal fitting are inserted into the insertion holes of the tread plate by rotating the fixing metal fitting disposed on the back side of the floor of the floor material in a plane parallel to the step metal, and the upper side of the lower metal fitting The beam is sandwiched between the lower part and the lower part, and the upper and lower metal fittings come close to each other by tightening the bolt, and the insertion plate of the upper metal fitting is restrained in the insertion hole and the lower part of the lower metal fitting The fixed structure of the floor material characterized by being pressed against the beam material. A floor plate is provided with a long hole, and a rib protrudes from the edge of two long sides of the long hole to the back side of the tread plate, and the rib has a slit-like insertion hole extending along the long side of the long hole in the rib , Fixing brackets fixed to the beam,
The fixing bracket includes an upper fitting engaged with the floor material, a lower fitting engaged with the beam member, and a bolt connecting the upper fitting and the lower fitting.
The upper metal fitting has a plug-in plate in which both ends in the longitudinal direction are inserted into the plug-in holes of the tread plate and provided with a bolt insertion hole at the center, and the plug-in plate has a longitudinal dimension equal to the length of the tread plate The opening is smaller than the opening size in the longitudinal direction of the hole and larger than the opening size in the transverse direction of the elongated hole, and the dimension in the transverse direction is smaller than the opening size in the transverse direction of the elongated hole of the tread plate,
The lower metal fitting is formed such that the upper side and lower side sandwiching the beam member are joined at the base end side to form a U shape in side view, has a screw hole in the upper side, and is longitudinal direction in top view The lateral dimension and the lateral dimension of the tread plate are respectively smaller than the longitudinal aperture dimension and the lateral aperture dimension of the long hole of the tread plate,
The upper metal fitting and the lower metal fitting are connected via a bolt by screwing a bolt inserted into a bolt insertion hole of the insertion plate of the upper metal fitting into a screw hole of the lower metal fitting. securing bracket.   The fixing metal fitting according to claim 2, wherein the upper metal fitting includes a restriction plate which extends from the edge of one long side of the insertion plate along the side surface of the lower metal fitting to the beam material side and abuts on the upper surface of the beam material.   The fixture according to claim 3, wherein a serrated notch is formed at the lower end of the restriction plate.   The fixing metal fitting according to claim 3 or 4, wherein the restriction plate has a stopper which protrudes toward the lower metal fitting side to restrict the upper limit position of the lower metal fitting.   The fixing metal fitting according to any one of claims 3 to 5, wherein the restriction plate has, at a lower end thereof, an abutment plate which protrudes to the lower metal fitting side and abuts on the upper surface of the beam member.   In the lower metal fitting, the upper side has flanges protruding to the lower side at both ends in the short direction, and the lower side has flanges protruding to the upper side at both ends in the short direction. The fixture according to any one of the above.   The fixing bracket according to claim 7, wherein the flange of the lower side portion has a protrusion that protrudes toward the upper side portion.   The fixture according to any one of claims 2 to 8, wherein a spring is mounted between the insertion plate of the upper fitting and the lower fitting of the bolt. It is a holder attached to the fixture according to any one of claims 2 to 9,
A retainer for fasteners characterized in that a groove for inserting a bolt having an open end is formed at an edge of the base plate on a base plate which is larger than an opening dimension of a floor plate in a lateral direction.   11. The holder for a fixing bracket according to claim 10, wherein a support for supporting the insertion plate is provided at a position sandwiching the closed end of the groove so as to protrude from the base plate. The tread plate is provided with a long hole, and a rib protrudes from the edge of the two long sides of the long hole to the back side of the tread plate, and the rib has a slit-like insertion hole extending along the long side of the long hole. Flooring to be done.

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