JP6332849B2 - Floor panel - Google Patents

Description

  The present invention relates to a floor panel used for constituting a free access floor.

The floor panel of the present invention is used for a free access floor, and is provided above a floor surface constituting a part of a building structure with a space between the floor surface (for example, Patent Document 1).

  FIGS. 15 to 18 are views referred to for explaining the conventional floor panel 2. As shown in FIG. 15, the conventional floor panel 2 constitutes the free access floor 1 together with the support legs 4 standing on the floor surface 3.

  The conventional floor panel 2 is supported by the support legs 4 so that the four corners thereof are detachable, so that it is vertically and horizontally biaxially viewed from above on a horizontal plane with a space above the floor 3. A plurality of sheets were arranged adjacent to each other in both directions.

  As shown in FIG. 17, the conventional floor panel 2 includes a plate-like top plate 6, a box-like bottom plate 8, and a reinforcing member 12 disposed therebetween. Here, both the top plate 6 and the bottom plate 8 are formed using a steel plate material.

  As shown in FIG. 16, the top panel 6 of the floor panel 2 is formed in a plate shape having a substantially square upper surface 6a, and the planar shape is formed in a quarter arc shape at each of the four corners. Similarly to the tapered portion 6d, a stepped portion 6c having a planar shape formed in a quarter arc shape is formed.

  That is, at each of the four corners of the top plate 6, as shown on the left side of FIG. 17, a taper portion 6 d inclined in the lower left direction in the drawing, and extends from the lower end portion of the taper portion 6 d in parallel to the upper surface 6 a and outward, A step portion 6c having a step surface whose height is lower than that of the upper surface 6a was formed.

  As shown on the right side of FIG. 17, the bottom plate 8 of the floor panel 2 has a bottom plate portion 8b having a substantially square bottom surface 8a similar to the upper surface 6a shown in FIG. 16, and a peripheral portion of the bottom plate portion 8b facing upward in FIG. Thus, a side plate portion 8c bent substantially vertically and a peripheral edge portion 8d bent from the upper end portion of the side plate portion 8c toward the outside in the horizontal direction in FIG. For this reason, the baseplate 8 was formed in the box shape which has the internal space 10 inside the horizontal direction of the side-plate part 8c.

  As shown in FIG. 17, the peripheral edge 8d of the bottom plate 8 is in contact with the peripheral edge 6e of the top plate 6, and is joined to the peripheral edge 6e by welding or caulking. The floor panel 2 has a hollow rectangular parallelepiped shape having an inner space 10 surrounded by the top plate 6, the bottom plate portion 8 b of the bottom plate 8, and the side plate portion 8 b by integrally joining the top plate 6 and the bottom plate 8. Was formed.

  In the internal space 10 of the floor panel 2, a plate-like reinforcing member 12 having a substantially square top and bottom surface and height is sandwiched between a top plate 6 having a top surface 6a and a bottom plate 8 having a bottom surface 8a. It had been. As the reinforcing member 12, a particle board is used in which wood is crushed into small pieces of wood and dried, and an adhesive is added to form the board under high temperature and high pressure.

  In addition, as shown in FIG. 16, the floor panel 2 has an opening 2a that is formed in a substantially rectangular shape on the inner side at a side that is one side of the substantially square. The opening 2a has been used for attaching an outlet box or the like used for connecting the underfloor wiring to an OA device or the like installed on the floor panel 2 or for passing the wiring.

  A step surface 6b having a step between the upper surface 6a and the substantially U-shaped three side portions constituting the opening 2a of the floor panel 2 was formed. The step surface 6 b was formed along three substantially U-shaped side portions constituting the opening 2 a of the floor panel 2.

  As shown in FIG. 15, the opening 2 a of the floor panel 2 can be closed by placing the lower surface of the plate-like lid member 18 on the step surface 6 b of the top plate 6. .

  As shown in FIGS. 15 and 18, the support leg 4 of the free access floor 1 is composed of a panel support base 14 and a leg portion 16 placed on the floor surface 3.

  As shown in FIG. 18, the panel support 14 of the support leg 4 is in a state in which the male screw portion 16a of the leg portion 16 is screwed to the female screw hole 14b formed on the lower end side in the axial direction (vertical direction in the figure). The height position of the panel support 14 from the floor 3 can be adjusted by rotating the panel support 14 relative to each other.

  Then, by tightening the male screw member 20 into the female screw hole 14c formed at the lower end portion of the panel support base 14 and whose axis extends in the radial direction of the panel support base 14, the panel support base 14 is lifted from the floor surface 3 to a desired height. It was fixed in position.

  One of the four corners of the bottom surface 8a of the floor panel 2 is placed on a support surface 14a that extends substantially parallel to the floor surface 3, and the panel support table 14 is placed on the floor using flat bolts 22 (fastening members). It was fixed to panel 2.

  That is, by tightening the male screw portion 22 b of the countersunk bolt 22 into the female screw hole 14 d at the upper end in the axial direction of the panel support base 14, the stepped portion 6 c of the floor panel 2 is moved downward by the countersunk head 22 a of the countersunk bolt 22. It was pressed down and fixed.

  Similarly to one of the four corners of the bottom surface 8 a of the floor panel 2, the other three corners of the bottom surface 8 a of the floor panel 2 were detachably supported by the other three support legs 4.

  According to such a conventional floor panel 2, a device such as a printer can be placed on the upper surface 6a.

JP 2009-144378 A

  However, since the conventional floor panel 2 is not fixed to the floor panel 2 because the equipment placed on the upper surface 6a thereof is vibrated to the building structure on which the floor panel 2 is installed due to an earthquake or the like, Due to this vibration, the device may move or rotate relative to the floor panel 2 and the device may fall.

  For this reason, the conventional floor panel 2 has to be subjected to additional work for fixing a metal fitting for preventing the device from falling to the floor panel 2 in order to prevent the device from falling. The additional work to be performed on the floor panel 2 needs to be performed at the installation site of the floor panel 2, so that there is a problem that labor and labor are required for the equipment installation work.

  Further, the conventional floor panel 2 needs to be subjected to additional work for fixing a metal fitting for preventing the equipment from toppling over the floor panel 2 every time the arrangement of the equipment is changed. There was also a problem that it took time and effort.

  Therefore, in view of the above problems, the present invention can fix a metal fitting for preventing the equipment to fall over the floor panel, and can easily perform installation work and arrangement change work of the equipment. It is an object to provide a floor panel.

In order to solve the above problems, the floor panel according to the present invention is:
A fixing member that can be fixed to the floor panel is provided,
Wherein the fixing member, the insertion portion is set eclipse consisting hole or recess open to the surface of the floor panel,
A female screw part is formed on the inner periphery of the inserted part ,
Ribs protruding outward from the outer peripheral surface are formed on the outer peripheral surface of the fixing member,
The floor panel is formed with a deformed portion in which the floor panel is pressed and deformed by contact with the rib of the fixing member when the fixing member is fixed to the floor panel. Is.

The floor panel according to the present invention is
A taper portion having an inner diameter that increases toward the outside is formed on an end portion on the opening side of the insertion portion or a floor panel in the vicinity thereof.

The floor panel according to the present invention is
The floor panel includes a crimping member that presses the fixing member and fixes the fixing member so that the fixing member is not separated.

According to such a floor panel of the present invention,
A fixing member that can be fixed to the floor panel is provided,
Wherein the fixing member, the insertion portion is set eclipse consisting hole or recess open to the surface of the floor panel,
A female screw part is formed on the inner periphery of the inserted part ,
Ribs protruding outward from the outer peripheral surface are formed on the outer peripheral surface of the fixing member,
When the fixing member is fixed to the floor panel, the floor panel is formed with a deformed portion that is deformed by being pressed by contact with the rib of the fixing member .
The internal thread portion can be used to fix the metal fitting for preventing the equipment to fall over the floor panel, and the equipment can be easily installed and repositioned.

It is a top view of the floor panel 42 which concerns on the 1st Embodiment of this invention. It is AA arrow sectional drawing of the floor panel 42 in FIG. It is a figure which shows the state before attaching the fixing member 44 of the floor panel 42 in FIG. 2, Comprising: It is a schematic sectional drawing corresponded to the AA arrow of FIG. It is a top view of the fixing member 44 in FIG. It is a side view of the fixing member 44 in FIG. 5 is a cross-sectional view of the fixing member 44 in FIG. It is a figure which shows the state which mounted the apparatus 56 on the free access floor 40 comprised using the floor panel 42, Comprising: It is a partially broken expanded side view which expanded the apparatus fixing | fixed part 42b vicinity. It is CC sectional view taken on the line of the free access floor 40 in FIG. It is a figure which shows the state which attached the flat volt | bolt 54 to the apparatus fixing | fixed part 42b of the floor panel 42 in FIG. 2, Comprising: It is a schematic sectional drawing corresponded in the AA arrow of FIG. It is a top view of the floor panel 82 which concerns on the 2nd Embodiment of this invention. It is a bottom view of the floor panel 82 in FIG. FIG. 12 is a cross-sectional view taken along the line D-D of the floor panel 82 in FIG. 11. It is a schematic sectional drawing equivalent to the DD arrow of FIG. 11 of the floor panel 92 which concerns on the 3rd Embodiment of this invention. It is a schematic sectional drawing equivalent to the AA arrow of FIG. 1 of the floor panel 102 which concerns on the 4th Embodiment of this invention. It is the fragmentary perspective view of the conventional free access floor 1 comprised using the conventional floor panel 2 and the support leg 4. FIG. It is a top view of the conventional floor panel 2. FIG. It is a partially broken side view of the conventional floor panel 2 in FIG. It is the partial expanded side view which expanded the support leg 4 vicinity of the conventional free access floor 1 in FIG.

  EMBODIMENT OF THE INVENTION Hereinafter, the form for implementing the floor panel which concerns on this invention is demonstrated concretely based on drawing.

  FIGS. 1 to 9 are views referred to for explaining the floor panel 42 according to the first embodiment of the present invention. Hereinafter, the same parts as those of the conventional floor panel 2 will be described with the same reference numerals, and the description of the same structure as the conventional one will be omitted except for a part.

  As shown in FIG. 1, the floor panel 42 according to the present embodiment has a plurality of device fixing portions 42 b arranged in the vertical and horizontal biaxial directions in the drawing so as to be spaced from each other. The floor panel 2 is configured in the same manner.

  That is, the floor panel 42 according to the present embodiment has one or more floor panels 42 arranged in place of the conventional floor panel 2 in the conventional free access floor 1 shown in FIG. The free access floor 40 (refer FIG. 7) is comprised with the leg 4. As shown in FIG.

  For this reason, the floor panel 42 according to the present embodiment, like the conventional floor panel 2, has the four corners detachably supported by the support legs 4, thereby separating the space upward from the floor surface 3. On a horizontal surface of a certain height, a plurality of sheets are arranged adjacent to each other in two vertical and horizontal biaxial directions when viewed from above.

  As shown in FIG. 2, the floor panel 42 according to the present embodiment includes a top plate 46, a bottom plate 48, and a reinforcing member corresponding to the top plate 6, the bottom plate 8, and the reinforcing member 12 of the conventional floor panel 2. 52 (crimp member). Here, similarly to the top plate 6 and the bottom plate 8, both the top plate 46 and the bottom plate 48 are formed using a steel plate material.

  Further, the opening 42a of the floor panel 42 and the stepped surface 46b, the stepped portion 46c and the tapered portion 46d of the top panel 46 shown in FIG. 1 are formed by the steps 2a and 4b of the conventional floor panel 2 shown in FIG. It is comprised similarly to the surface 6b, the level | step difference part 6c, and the taper part 6d.

  As shown in FIG. 2, the device fixing portion 42b of the floor panel 42 is formed at a through hole 42c that penetrates in the thickness direction of the floor panel 42 (vertical direction in the figure) and an upper end in the axial direction of the through hole 42c. The taper part 42d, the deformation | transformation part 42e formed in the axial direction lower end part of the through-hole 42c, and the fixing member 44 which has the internal thread part 44a are inserted in the through-hole 42c from the lower side in the figure.

  Here, the deformation portion 42e of the device fixing portion 42b is formed when the fixing member 44 is inserted into the through hole 42c, and is formed before the fixing member 44 is inserted, as shown in FIG. Not.

  As shown in FIG. 3, the device fixing portion 42 b of the floor panel 42 is disposed between the plate portion having the upper surface 46 a of the top plate 46, the plate portion having the bottom surface 48 a of the bottom plate 48, and these plate portions. A through hole 42c is formed through the reinforcing member 52 in the vertical direction in the figure.

  The device fixing portion 42b has a tapered portion 42d on the inner peripheral portion on the opening side from the middle portion of the through hole 42c to the upper end portion so that the inner diameter dimension gradually increases toward the upper end portion. Is formed.

  Further, as shown in FIG. 6, the fixing member 44 of the device fixing portion 42b has a cylindrical body portion 44b extending in the axial direction (vertical direction in the drawing) and a radially outer side at the lower end portion of the body portion 44b. An overhanging flange-shaped flange portion 44c and a rib 44d protruding so as to extend radially outward from the outer peripheral surface of the body portion 44b are provided.

  Here, in FIG. 6, for convenience of explanation, the body portion 44b, the flange portion 44c, and the rib 44d of the fixing member 44 are distinguished from each other by broken lines, but these are integrally formed.

  The body portion 44b of the fixing member 44 is formed with a through hole 44g (hole, inserted portion) along the axial direction, and a female screw portion 44a is formed on the inner peripheral portion of the through hole 44g.

  The body portion 44b has a tapered portion 44f on the inner peripheral portion of the upper end portion (opening side) in the length direction of the through hole 44g so that the inner diameter dimension of the through hole gradually increases toward the upper end portion in the axial direction. Is formed.

  The body portion 44 b of the fixing member 44 is formed such that the outer diameter of the outer peripheral surface thereof is substantially the same as the inner diameter of the through hole 42 c of the floor panel 42. For this reason, as shown in FIG. 2, when the body portion 44 b of the fixing member 44 is inserted into the through hole 42 c of the floor panel 42, the body portion 44 b is fitted into the through hole 42 c.

  As shown in FIGS. 4 to 6, the rib 44d of the fixing member 44 is formed between the outer peripheral surface of the body portion 44b and the step surface 44e of the flange portion 44c, and is an end portion on the step surface 44e side. Is formed in a quadrangular pyramid shape so as to protrude outward in the radial direction from the outer peripheral surface of the body portion 44b. As shown in FIG. 4, four ribs 44 d are formed at intervals in the circumferential direction of the fixing member 44.

  The fixing member 44 is inserted into the through hole 42c of the floor panel 42 shown in FIG. 3 from the lower side in the figure, and is hit by the hammer or the like from the lower side in the figure, whereby the floor panel The through hole 42c of 42 is inserted and fixed.

  As shown in FIG. 7, the fixing member 44 is embedded in the through hole 42 c until the step surface 44 e of the flange portion 44 c contacts the bottom surface 48 a of the bottom plate 48.

  As shown in FIG. 2, the equipment fixing portion 42 b of the floor panel 42 corresponds to the shape of the rib 44 d when the bottom plate 48 and the reinforcing member 52 are pressed and deformed by contact with the rib 44 d of the fixing member 44. A concave deforming portion 42e is formed.

  The fixing member 44 of the device fixing portion 42b is firmly fitted to the reinforcing member 52 that constitutes a part of the through hole 42c of the floor panel 42 so as not to be easily separated from the through hole 42c of the floor panel 42. It is fixed.

  As shown in FIG. 7, the female screw portion 44a formed on the inner peripheral portion of the through hole 44g of the fixing member 44 of the device fixing portion 42b prevents the device 56 placed on the upper surface 46a of the floor panel 42 from falling. It can be used as a means.

  Hereinafter, the fall prevention means of the equipment 56 using the equipment fixing part 42b of the floor panel 42 of the present invention will be described.

  As shown in FIG. 7, the fixing member 44 of the device fixing portion 42b has the lower end portion of the male screw member 70 inserted into the through hole 44g, and the female screw portion 44a extends to the lower end portion side of the male screw member 70. It is screwed to the portion 70a. The male screw portion 70a of the male screw member 70 is formed with a male screw over the entire length in the length direction, and is a fixed hardware 60 (falling prevention metal fitting) whose lower side portion 60b is placed on the upper surface 46a of the floor panel 42. The through hole 60e is inserted.

  Then, by tightening a female screw portion (not shown) of the nut members 64 and 66 to the male screw portion 70a of the male screw member 70 protruding above the through hole 60e of the fixed hardware 60, the lower side portion 60b of the fixed hardware 60 is It is sandwiched and fixed between the floor panel 42 and the nut member 64.

  As shown in FIG. 7, the fixed hardware 60 is formed in a crank-shaped plate shape, and has a lower side portion 60 b extending in the horizontal direction in the drawing and a right side portion of the lower side portion 60 b upward from the right side in the drawing. The connecting portion 60c is bent at a substantially right angle, and the upper side portion 60a is bent at a substantially right angle from the upper end portion of the connecting portion 60c in the drawing to the right side in the drawing (the side opposite to the lower side portion 60b) and extends horizontally. Configured.

  As shown in FIG. 8, two through holes 60 e are formed in the lower side portion 60 b of the fixed hardware 60 at intervals in the width direction (vertical direction in the figure). The middle part of the length of the male screw part 70a of the male screw member 70 is inserted into each of the two through holes 60e.

  Further, as shown in FIG. 8, the upper side portion 60a of the fixed hardware 60 has a U-shaped cutout portion 60d that is recessed from the edge on the right side in the length direction (right side in the drawing) toward the center of the length. Is formed. An intermediate portion (see FIG. 7) of the male screw portion 58a of the support leg 58 of the device 56 is loosely inserted into the cutout portion 60d.

  As shown in FIG. 7, the support leg 58 is placed on the upper surface 46 a of the floor panel 42, and has a male screw part 58 a extending upward.

  The support leg 58 has an upper end portion of the male screw portion 58 a screwed to a female screw portion 56 a formed at the four corners of the device 56. The support leg 58 is fixed to the device 56 by screwing the male screw portion 58a to a female screw portion (not shown) of the two nut members 62 disposed below the female screw portion 56a of the device 56. ing.

  Similarly to the support leg 58 shown in FIG. 7, the support leg 58 fixed to each of the other four corners of the device 56 is also fixed to the floor panel 42 in the middle of the length of the male screw part 58a. It is loosely inserted into the notch 60d of the fixed hardware 60.

  The four support legs 58 have a male screw part 58a and a notch part until the male screw part 58a of the support leg 58 and the notch part 60d of the fixed hardware 60 come into contact with each other by relative movement and relative rotation with respect to the four fixed metal parts 60. It is limited within the range of the gap between 60d.

  For this reason, the device 56 tries to move and rotate relative to the floor panel 42 when vibration is applied to the building structure on which the floor panel 42 is installed, such as an earthquake. Since the fixed hardware 60 is fixed to the portion 42b, the relative movement and the relative rotation are limited.

  Of the plurality of device fixing portions 42 b of the floor panel 42, the male screw portion 70 a of the male screw member 70 is screwed to the female screw portion 44 a of the fixing member 44 without being used to prevent the device 56 from falling. As shown in FIG. 9, in the non-equipment fixing part 42b, the lower end of the countersunk bolt 54 is inserted into the through hole 44g, and the male threaded part 54b of the countersunk bolt 54 is screwed to the female threaded part 44a.

  The countersunk head 54 a of the countersunk bolt 54 is accommodated in a gap formed on the radially inner side of the tapered part 42 d by the tapered part 42 d of the equipment fixing part 42 b of the floor panel 42. At this time, the upper end surface of the countersunk head 54 a of the countersunk bolt 54 is arranged substantially in the same plane as the upper surface 46 a of the floor panel 42.

  The countersunk bolt 54 is removed from the fixing member 44 when the instrument 56 is disposed near the instrument fixing part 42b to which the countersunk bolt 54 is attached due to the change in arrangement. The male screw member 70 is attached to the fixing member 44 from which the flat bolt 54 is removed.

  As described above, the floor panel 42 according to the present embodiment can fix the fixed hardware 60 for preventing the equipment 56 placed on the floor panel 42 from falling. And the floor panel 42 to which the fixed hardware 60 is fixed can prevent the device 56 from falling down due to vibration caused by an earthquake or the like.

  In addition, the floor panel 42 according to the present embodiment has an additional process for fixing the fixed hardware 60 to the floor panel 42 at the site where the work is performed when the installation work or the layout change work of the device 56 is performed. Since it is not necessary to apply, the installation work and arrangement | positioning change work of the apparatus 56 can be performed easily.

  In addition, the floor panel 42 according to the present embodiment has a plurality of device fixing portions 42b arranged in the vertical and horizontal biaxial directions and spaced from each other, and the device 56 is fixed from the device fixing portions 42b. Since the device fixing portion 42b provided at a position suitable for the above can be used for fixing the device 56, the installation work and the arrangement change work of the device 56 can be easily performed.

  In the floor panel 42 according to the present embodiment, the fixed hardware 60 for preventing the device 56 placed on the floor panel 42 can be fixed, and the installation work and the arrangement change of the device 56 can be performed. Work can be done easily.

  Further, the floor panel 42 according to the present embodiment has a configuration in which the through hole 42c and the tapered portion 42d are formed in the conventional floor panel 2 and the fixing member 44 is inserted to form the deformed portion 42e. It can also be manufactured from a conventional floor panel 2.

  Further, the floor panel 42 according to the present embodiment includes a reinforcing member 52 into which the fixing member 44 is strongly fitted in a part of the through hole 42c, whereby the fixing member 44 is inserted into the through hole of the floor panel 42. In addition to being firmly fixed to 42c, the fixing work of the fixing member 44 can be facilitated.

  FIGS. 10 to 12 are views referred to for explaining a floor panel 82 according to the second embodiment of the present invention.

  Although the floor panel 42 according to the first embodiment includes the top plate 46, the bottom plate 48, and the reinforcing member 52, the floor panel 82 according to the present embodiment, as shown in FIG. A plate-shaped top plate 84 and a box-shaped bottom plate 86 are provided. Both the top plate 84 and the bottom plate 86 are formed using a steel plate material.

  As shown in FIG. 10, the floor panel 82 is provided with a plurality of device fixing portions 82 a that are arranged side by side in both vertical and horizontal biaxial directions in the drawing. As shown in FIG. 10, the top panel 84 of the floor panel 82 is formed in a plate shape having a substantially square upper surface 84a.

  As shown in FIG. 12, the bottom plate 86 of the floor panel 82 includes a bottom plate portion 86b having a bottom surface 86a, a side plate portion 86c bent substantially vertically from the peripheral edge of the bottom plate portion 86b upward in the figure, and a side plate portion. A peripheral edge 86d is formed that is bent from the upper end of 86c toward the outside in the horizontal direction in the figure. For this reason, the bottom plate 86 is formed in a box shape having an internal space on the inner side in the horizontal direction of the side plate portion 86c.

  In order to improve the strength of the floor panel 82, the bottom plate portion 86b of the bottom plate 86 is directed to the top plate 84 side (upper side in the drawing) from the bottom surface 86a located on the lowermost side on the inner side in the horizontal direction from the side plate portion 86c. A step surface 86e having a depth is formed, and a plurality of reinforcing recesses 86f recessed in a substantially hemispherical shape toward the top plate 84 side are formed on the step surface 86e.

  As shown in FIG. 12, the floor panel 82 is integrally joined by welding, caulking or the like with the top plate 84 and the bottom plate 86 in a state where the peripheral portion 86d of the bottom plate 86 is in contact with the peripheral portion of the top plate 84. Thus, a hollow, substantially rectangular parallelepiped internal space surrounded by the top plate 84 and the bottom plate 86 is formed.

  As shown in FIG. 12, the equipment fixing portion 82a of the floor panel 82 is provided on the top plate 84 and the bottom plate 86 so as to have substantially the same straight axis extending in the thickness direction of the floor panel 82 (vertical direction in the figure). The taper-shaped through holes 84b and 86g are formed, and the fixing member 44 is fixed to the through hole 86g of the bottom plate 86 and has a female screw portion 44a.

  Here, the fixing member 44 is integrally fixed to the bottom plate 86 by welding, caulking, adhesion, or the like. Therefore, the fixing member 44 is not easily separated from the through holes 84b and 86g of the floor panel 82.

  Also in the floor panel 82 according to the present embodiment, the fixed hardware 60 for preventing the equipment 56 mounted on the floor panel 82 from falling down is provided in the same manner as the floor panel 42 according to the first embodiment. Can be fixed, and the installation operation and the arrangement change operation of the device 56 can be easily performed.

  FIG. 13 is a view referred to for explaining a floor panel 92 according to the third embodiment of the present invention.

  The floor panel 92 according to the present embodiment has a mortar 94 (crimping member) that reinforces the top plate 84 and the bottom plate 86 between the top plate 84 and the bottom plate 86 in the floor panel 82 according to the second embodiment. It is different from the conventional floor panel 82 in that it is filled.

  Further, the device fixing portion 92a of the floor panel 92 is fixed to the tapered through holes 84b and 86g and the through hole 86g of the bottom plate 86 in the second embodiment, and the fixing member 44 having the female screw portion 44a. In addition, it has a through hole 94 a that has an axis substantially collinear with the tapered through holes 84 b and 86 g and penetrates the mortar 94.

  The fixing member 44 is struck from the lower side in the figure by inserting a body part 44b into the through hole 94a of the equipment fixing part 92a of the floor panel 92 shown in FIG. 13 from the lower side in the figure. Thus, it is inserted into the through hole 94a of the floor panel 92 and fixed.

  Here, the fixing member 44 is integrally fixed to the bottom plate 86 by welding, caulking, adhesion, or the like. For this reason, the fixing member 44 is fixed so as not to be easily separated from the through hole 94 a of the floor panel 92.

  Also in the floor panel 92 according to the present embodiment, the fixed hardware 60 for preventing the equipment 56 mounted on the floor panel 92 from falling down is provided in the same manner as the floor panel 82 according to the second embodiment. Can be fixed, and the installation operation and the arrangement change operation of the device 56 can be easily performed.

  FIG. 14 is a view referred to for explaining a floor panel 102 according to the fourth embodiment of the present invention.

  The floor panel 42 according to the first embodiment includes the top plate 46, the bottom plate 48, and the reinforcing member 52. However, the floor panel 102 according to the present embodiment, as shown in FIG. A panel substrate 104 (crimping member) and a reinforcing iron plate 106 (reinforcing member) are provided.

  The panel substrate 104 of the floor panel 102 is made of concrete and is formed in a plate shape having a substantially square upper surface 104a.

  The reinforcing iron plate 106 of the floor panel 102 is formed in a plate shape having a substantially square bottom surface 106a, and is bonded to the back surface of the panel substrate 104 with an adhesive in order to improve the strength of the panel substrate 104. .

  In the floor panel 102, a plurality of device fixing portions 102 a shown in FIG. 14 are arranged in a row in two vertical and horizontal directions with respect to a horizontal plane parallel to the upper surface 104 a of the floor panel 102.

  As shown in FIG. 14, the device fixing portion 102a of the floor panel 102 is formed at a through hole 102b that penetrates in the thickness direction of the floor panel 102 (vertical direction in the figure) and an upper end in the axial direction of the through hole 102b. The taper part 102c, the deformation | transformation part 102d formed in the axial direction lower end part of the through-hole 102b, and the fixing member 44 which has the internal thread part 44a inserted in the through-hole 102b from the lower side in the figure are provided.

  Here, the deformation portion 102d of the device fixing portion 102a is formed when the fixing member 44 is inserted into the through hole 102b, and is not formed before the fixing member 44 is inserted.

  As shown in FIG. 14, a through hole 102 b that penetrates the panel substrate 104 and the reinforcing iron plate 106 in the vertical direction in the figure is formed in the device fixing portion 102 a of the floor panel 102.

  The device fixing portion 102a is formed with a tapered portion 102c on the inner peripheral portion from the middle portion of the through hole 102b to the upper end portion so that the inner diameter gradually increases toward the upper end portion. Yes.

  The fixing member 44 is inserted into the through-hole 102b of the floor panel 102 shown in FIG. 14 from the lower side in the figure, and is hit from the lower side in the figure by a hammer or the like. It is inserted into the through hole 102b of the panel 102 and fixed.

  As shown in FIG. 14, the device fixing portion 102 a of the floor panel 102 is configured such that the panel substrate 104 and the reinforcing iron plate 106 are pressed and deformed by contact with the ribs 44 d of the fixing member 44. Similar to the embodiment, a concave deformation portion 102d corresponding to the shape of the rib 44d is formed.

  The fixing member 44 of the device fixing portion 102b is firmly fitted so as not to be easily separated from the through hole 102b of the floor panel 102 by being strongly fitted to the panel substrate 104 constituting a part of the through hole 102b of the floor panel 102. It is fixed.

  Also in the floor panel 102 according to the present embodiment, the fixed hardware 60 for preventing the equipment 56 placed on the floor panel 102 from falling down is provided in the same manner as the floor panel 92 according to the third embodiment. Can be fixed, and the installation operation and the arrangement change operation of the device 56 can be easily performed.

  In addition, the floor panel 102 according to the present embodiment includes the panel substrate 104 to which the fixing member 44 is strongly fitted, similarly to the floor panel 42 according to the first embodiment, so that the fixing member 44 can be firmly fixed to the through hole 102b of the floor panel 102, and the fixing work of the fixing member 44 can be facilitated.

  In addition, this invention is not limited only to the said embodiment, If it is in the range which can achieve the objective of this invention, a various change is possible about a floor panel.

  That is, in the fixing member 44 in the first to fourth embodiments, the through hole 44g penetrating along the axial direction is formed in the body portion 44b. However, the fixing member 44 is not necessarily limited to the through hole. It is only necessary that the lower end portion of the male screw member can be inserted from the surface side of the floor panel and that the female screw portion can be formed on the inner peripheral portion thereof. That is, it is only necessary that a plurality of inserted portions including holes or recesses opened on the surface of the floor panel are provided, and a female screw portion is formed on the inner peripheral portion of the inserted portion.

  In addition, the floor panel according to the present invention may be provided with a plurality of inserted portions including holes or recesses that are opened on the surface of the floor panel, and an internal thread portion may be formed on the inner periphery of the inserted portion. It is not limited to the constituent members of the floor panels 42, 82, 92, 102 described in the first to fourth embodiments, and the shapes and materials of those constituent members.

  For example, although the floor panel 42 according to the first embodiment includes the top plate 46, the bottom plate 48, and the reinforcing member 52, the floor panel 42 may be configured without the reinforcing member 52. Moreover, although the top plate 46 and the bottom plate 48 of the floor panel 42 according to the first embodiment are both formed using a steel plate material, they may be formed using other metal materials such as aluminum. Alternatively, a resin other than a metal material may be used as a material.

  The panel substrate 104 in the fourth embodiment is made of concrete, but any other material such as calcium silicate can be used as long as it can be used for the floor panel 102. May be used.

  Moreover, although the floor panel 42 according to the first embodiment is configured to fix the device 56 using the female screw portion 44a, the fixing hardware 60, and the male screw member 70 of the device fixing portion 42b, the device fixing portion As long as the device can be fixed using the female screw portion, a member other than the fixed hardware 60 and the male screw member 70 may be used. This also applies to the floor panel 82 according to the second to fourth embodiments.

  Further, in the floor panel 42 according to the first embodiment, the floor panel 42 is formed with the tapered portion 42d and the fixing member 44 is formed with the tapered portion 44f. However, the flat head of the flat bolt is tapered. The taper portion may be formed only on one of the floor panel or the fixing member as long as it can be accommodated in the gap formed on the radially inner side of the portion. When the taper portion is formed only on the fixing member, it is not necessary to form the taper portion on the floor panel. Therefore, the manufacturing operation of the floor panel according to the present invention can be facilitated.

  The floor panel 42 according to the first to fourth embodiments is configured to fix the fixing member 44 to the floor panel 42 by insertion, welding, caulking, adhesion, or the like. The fixing member may be provided integrally.

  However, the floor panel of the present invention can be manufactured from an existing floor panel by using a configuration in which the floor panel and the fixing member are separated and the fixing member is attached after the floor panel is molded.

  Further, the floor panel and the fixing member are separated from each other, and the reinforcing member 52 using the particle board in the first embodiment, the mortar 94 in the third embodiment, In the fourth embodiment, the fixing member is firmly fixed to the floor panel by including a crimping member such as the concrete panel substrate 104 that is firmly fitted to the fixing member so that the fixing member is not separated. In addition, the fixing work of the fixing member can be facilitated. The crimp member only needs to be able to be strongly fitted to the fixing member so that the fixing member is not separated, and includes a resin member.

DESCRIPTION OF SYMBOLS 1 Free access floor 2 Floor panel 2a Opening part 3 Floor surface 4 Support leg 6 Top plate 6a Top surface 6b Step surface 6c Step part 6d Tapered part 6e Peripheral part 8 Bottom plate 8a Bottom surface 8b Bottom plate part 8c Side plate part 8d Peripheral part 10 Internal space 12 Reinforcing member 14 Panel support base 14a Support surface 14b, 14c, 14d Female screw hole 16 Leg portion 16a Male screw portion 18 Lid member 20 Male screw member 22 Countersunk bolt 22a Countersunk head portion 22b Male screw portion 40 Free access floor 42 Floor panel 42a Opening portion 42b Equipment Fixed portion 42c Through hole 42d Tapered portion 42e Deformed portion 44 Fixed member 44a Female thread portion 44b Body portion 44c Flange portion 44d Rib 44e Stepped surface 44f Tapered portion 44g Through hole 46 Top plate 46a Top surface 46b Stepped portion 46d Bottom plate 46d Tapered portion 48d Tapered portion 48d 4 a bottom surface 52 reinforcing member 54 flat head bolt 54a flat head head 54b male screw part 56 device 56a female screw part 58 support leg 58a male screw part 60 fixing hardware 60a upper side part 60b lower side part 60c connecting part 60d long hole part 60e through hole 62, 64, 66 Nut member 70 Male screw member 70a Male screw part 82 Floor panel 82a Device fixing part 84 Top plate 84a Upper surface 84b Through hole 86 Bottom plate 86a Bottom surface 86b Bottom plate part 86c Side plate part 86d Peripheral part 86e Stepped surface 86f Reinforcing recess 86g Through hole 92 Floor panel 92 Fixing part 94 Mortar 94a Through hole 102 Floor panel 102a Equipment fixing part 102b Through hole 102c Taper part 102d Deformation part 104 Panel substrate 104a Upper surface 106 Reinforced iron plate 106a Bottom surface

Claims (3)

A fixing member that can be fixed to the floor panel is provided,
Wherein the fixing member, the insertion portion is set eclipse consisting hole or recess open to the surface of the floor panel,
A female screw part is formed on the inner periphery of the inserted part ,
Ribs protruding outward from the outer peripheral surface are formed on the outer peripheral surface of the fixing member,
The floor panel is formed with a deformed portion in which the floor panel is pressed and deformed by contact with the rib of the fixing member when the fixing member is fixed to the floor panel. Floor panel. 2. The floor panel according to claim 1, wherein a tapered portion having an inner diameter that increases toward an outer side is formed on an end portion on the opening side of the inserted portion or a floor panel in the vicinity thereof. The floor panel, floor panel according to claim 1 or 2, characterized in that it comprises a crimping member to secure as the fixing member presses the fixing member does not leave.

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