JP5300918B2 - Panel connecting member - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a panel connecting member which can easily improve the earthquake resistance of an existing panel-free type free-access floor, without the need for construction for changing a panel and an adjusting base for the same into a panel and an adjusting base for a panel-fixed type one. <P>SOLUTION: The panel connecting member 60 for connecting a plurality of panels 24 with a through-hole 30 opened on a top surface includes a panel-holding flat plate part 62 which is placed on the top surface of the panel 24, and a plurality of engaging plates 64 engaging with the peripheral part of a through-hole 30 by connecting top ends with the panel-holding flat plate part 62 and expanding an external diameter in a cross section perpendicular to the inserting direction while inserting through the through-hole 30 of the panel 24. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to a panel connecting member that connects a plurality of free access floor panels that constitute a free access floor laid on a floor such as a clean room or a computer room.

  FIG. 11 is a plan view showing a part of the laying area of the conventional free access floor 2 laid on the floor of a computer room, for example. In the conventional free access floor 2 shown in the figure, each of the four free access floor panels 4 (hereinafter referred to as panels 4) constituting a part of each of the panels 4 is located at a position where the corners are gathered in one place. As shown in FIG. 12, the corners are placed on an adjustment table 8 installed on the upper part of the support leg.

  As shown in FIG. 11, the panel 4 has a large number of through-holes 10 opened in a substantially rectangular shape on the upper surface. Further, as shown in FIG. 12, the panel 4 is formed with a plurality of small ribs 12 and large ribs 14 that have a height in the lower direction from the upper surface and extend vertically and horizontally in the plane direction of the panel 4. Has been. The large rib 14 is also formed on the peripheral edge of the planar shape of the panel 4, and the height dimension of the large rib 14 is the same as the thickness dimension of the panel 4. The height of the small rib 12 is smaller than the height of the large rib 14.

  FIG. 13 is a plan view showing a part of the laying area of another conventional free access floor 22 that is different from the conventional free access floor 2 described above. In the conventional free access floor 22 shown in the figure, as in the conventional free access floor 2, each corner of four free access floor panels 24 (hereinafter referred to as panels 24) constituting a part thereof is provided. As shown in FIG. 14, each corner of the panel 24 is placed on the adjustment table 8 at the upper part of the support leg at a position where the panels 24 are gathered at one place.

  The panel 24 of the free access floor 22 is not formed with a large number of through-holes 10 unlike the panel 4 of the conventional free access floor 2, and as shown in FIG. One circular through hole 30 for removing the panel 24 is formed. Further, as shown in FIGS. 13 and 14, the small ribs 12 and the large ribs 14 of the panel 24 are arranged in a layout different from that of the panel 4 of the conventional free access floor 2.

  In the conventional free access floors 2 and 22 as described above, the panels 4 and 24 may be removed after installation for the use or maintenance of the underfloor space below the panels 4 and 24. In general, a panel-free structure is employed in which the is mounted on the adjusting table 8 and is not fixed.

  In the panel-free type free access floors 2 and 22, the panels 4 and 24 are only placed on the adjustment base 8, so that the panels 4 and 24 are lifted by, for example, shaking when an earthquake occurs. In the worst case, the panels 4 and 24 may fall from the adjusting table 8. Therefore, in order to prevent the panels 4 and 24 from being lifted or dropped and to improve the earthquake resistance, a panel-fixed free access floor having a structure in which the panels 4 and 24 are fixed on the adjusting table 8 with bolts or the like is employed. In some cases.

  However, there is no problem when newly constructing the above-mentioned panel-fixed free access floor, but the existing panel-free free-access floor structure has been changed to a panel-fixed system in order to improve its earthquake resistance. If you want to move, move the equipment mounted on the panel, remove the existing panel and adjustment table, and then install the panel fixing method panel and adjustment table again, For this purpose, there was a problem that the construction was more difficult than the construction of a new panel-fixed free access floor, and it was very expensive.

  In addition, the panel-fixed free access floor requires a higher cost than the panel-free free access floor, even if simply compared.

  Therefore, in view of the above-mentioned problems, the present invention does not require construction for changing the panel or the adjustment base for the panel-free type for the existing panel-free type free access floor, and easily improves the earthquake resistance. It is an object of the present invention to provide a panel connecting member that can be improved.

In order to solve the above problems, the present invention
A panel connecting member that connects a plurality of panels having a through-hole opened on the upper surface,
A panel holding plate having a plurality of holes and placed on the upper surface of the panel;
A plurality of engagement actuating parts having an upper end connected to the panel pressing flat plate and a lower end inserted through the hole of the panel pressing flat plate and the through hole of the panel;
A drive operation unit having a lower end housed in the engagement operation unit;
In the middle of the length portion of the lower end portion, the engagement operation portion is divided into a constricted portion whose outer diameter is smaller than the outer diameter of the other length portions, and a plurality of portions below the constricted portion. An engaging portion,
The engagement portion is pushed by the lower end portion of the drive operation portion and rotates so as to open with the constriction portion as a fulcrum, so that the outer diameter in the cross section perpendicular to the length direction is enlarged. And it is engaged with the peripheral part of the through-hole of the said panel, It is characterized by the above-mentioned.

Further, the present invention is characterized in that the enlarged outer diameter of the engaging portion can be returned to the original outer diameter.

According to such a panel connecting member of the present invention,
A panel connecting member that connects a plurality of panels having a through-hole opened on the upper surface,
A panel pressing flat plate portion placed on the upper surface of the panel;
The upper end is connected to the panel pressing plate and is inserted into the through hole of the panel, and the outer diameter of the cross section in the direction perpendicular to the insertion direction is expanded to engage the peripheral part of the through hole. By providing a plurality of sets of engaging members
The existing panel-free system free access floor does not require construction to change its panel or adjustment base to that for the panel fixing system, and can easily improve its earthquake resistance.

  Further, in the panel connecting member, the enlarged outer diameter of the engaging member can be returned to the original outer diameter, so that it can be attached to and detached from each corner of the panel of the free access floor. Can do.

It is a top view of the panel connection member 40 which concerns on the 1st Embodiment of this invention. It is a side view of the panel connection member 40 shown in FIG. It is a top view which shows the panel 4 of the state connected with the panel connection member 40 which concerns on the 1st Embodiment of this invention. It is a top view of the panel connection member 60 which concerns on the 2nd Embodiment of this invention. FIG. 5 is a side cross-sectional view of the panel connecting member 60 shown in FIG. 4 and shows a state before the diameter of the outer peripheral portion of the engaging portion 66b of the engaging unit 64 is enlarged. FIG. 6 is a side cross-sectional view of the panel connecting member 60 shown in FIG. 4, showing a state where the diameter of the outer peripheral portion of the engaging portion 66 b of the engaging unit 64 is enlarged. It is a bottom view of the engagement unit 64 in FIG. It is a bottom view of the engagement unit 64 in FIG. It is a top view which shows the panel 24 of the state connected with the panel connection member 60 which concerns on the 2nd Embodiment of this invention. It is CC sectional view taken on the line of the panel connection member 60 and the panel 24 in FIG. It is a top view which shows the butt | matching part of each corner of the panel 4 of the conventional free access floor 2. FIG. It is AA arrow sectional drawing of the panel 4 in FIG. It is a top view which shows the butt | matching part of each corner of the panel 24 of the conventional free access floor 22 different from the free access floor 2. FIG. It is a BB arrow directional cross-sectional view of the panel 24 in FIG.

Hereinafter, the shape condition for carrying out the panel connecting member according to the present invention will be specifically described with reference to the drawings. FIGS. 1 to 3 are views referred to for describing the panel connecting member 40 according to the first embodiment of the present invention.

  In the present embodiment, the case where the panel connecting member 40 is applied to the conventional free access floor 2 shown in FIGS. 11 and 12 will be described. In addition, the same reference numerals are used for the same parts as in the prior art, and redundant explanations for the same configurations as in the prior art are omitted.

  As shown in FIG. 3, the panel connecting member 40 according to the present embodiment has the panel pressing plate 42 for each panel 4 at a position where the corners of the panel 4 of the free access floor 2 are gathered at one place. Each panel 4 is connected to each other by being placed on the upper surface of each corner and having the leg portion 44 inserted and attached to the through hole 10 closest to the corner of each panel 4. .

  As shown in FIGS. 1 and 2, the panel connecting member 40 includes a single panel pressing flat plate portion 42 and four leg portions 44. As shown in FIG. 1, the panel pressing flat plate portion 42 is formed with a recess 42 b in which a square shape (not shown) is cut out in a central fan shape.

  Each of the four leg portions 44 is sandwiched between the recesses 42b, and a belt-like portion extending in four directions from the panel pressing flat plate portion 42 is bent downward from the middle (see FIG. 2), and has a constant height. It is formed to have.

  Although such a panel connecting member 40 is not shown, it has a substantially cross shape, and the planar shape of the portion including the intersecting position of the vertical belt portion and the horizontal belt portion of the flat plate portion 42 for panel pressing shown in FIG. From a single flat plate material formed so as to have a planar shape, the length portions of the vertical belt portion and the horizontal belt portion corresponding to the leg portion 44 are bent from the middle to be integrally formed. It has become so.

  As shown in FIG. 2, the leg portion 44 is formed such that the angle between the leg portion 44 and the panel pressing flat plate portion 42 is slightly smaller than a right angle, that is, an acute angle. Further, the leg portion 44 is formed by bending its distal end portion 44a slightly outward.

  And the leg part 44 is formed so that the dimension of the width direction (horizontal direction in the figure) becomes constant over the height direction at the height part excluding the tip part 44a bent outward. The portion 44a is formed so that the width dimension gradually increases as it goes to the tip.

  Further, as shown in FIG. 1, the panel connecting member 40 has a circular shape in the center position of the planar shape of the panel pressing flat plate portion 42 in the direction opposite to the leg portion 44 (front side in the figure). A raised portion 46 (reinforcing structure) that rises is formed. Further, as shown in FIGS. 1 and 2, on the surface of the panel pressing plate 42 from the intermediate position between the center of the planar shape and each leg 44 to the intermediate height of each leg 44. Four raised portions 48 (reinforcing structures) are formed in a length range extending along the outer periphery, and are raised outward in a constant width. Such raised portions 46 and 48 are formed by drawing.

  When such a panel connecting member 40 is attached to the panel 4 of the free access floor 2, each leg portion 44 comes into contact with the corner of the through-hole 10 near the corner of the panel 4, while in the initial state. Since it is slightly bent so that it gradually spreads outward and enters the through hole 10, both end sides in the width direction of the leg portion 44 are strongly pressed against the inner peripheral surface of the through hole 10 by the elastic force and locked. Is done.

  According to the panel connecting member 40 according to the present embodiment as described above, by connecting the respective corners of the panel 4 with respect to the existing panel free system free access floor 2, the individual panels 4 are caused by an earthquake or the like. Since it can be prevented from swinging independently, the earthquake resistance of the free access floor 2 can be easily improved.

  In addition, the panel connecting member 40 is subjected to drawing processing (reinforcing structure) of the raised portions 46 and 48 on the panel pressing flat plate portion 42 and the leg portion 44 so that the entire panel connecting member 40 is not easily deformed. As a result, the elastic force that the leg portion 44 is pressed against the inner peripheral surface of the through-hole 10 of the panel 4 is increased and is firmly locked. Therefore, the corner portions of the panels 4 are firmly fixed to each other. Can be linked.

  Further, as shown in FIG. 2, the leg portion 44 is bent from the panel pressing flat plate portion 42 so that the angle between the leg portion 44 and the panel pressing flat plate portion 42 is slightly smaller than a right angle, that is, an acute angle. Since the panel connecting member 40 is formed on the panel 4 of the free access floor 2 as shown in FIG. 3, the leg portion 44 enters the through hole 10 while being reliably bent. Thus, it is possible to reliably generate the elastic force so as to be locked in the through hole 10 and to connect the panels 4 to each other with certainty.

  In addition, as shown in FIG. 2, the leg portion 44 is formed by bending the distal end portion 44 a outward, so that the distance between the distal ends of the distal end portions 44 a of the leg portions 44 facing each other is widened. Even if the bending angle of the leg portion 44 and the panel pressing flat plate portion 42 is an acute angle, the leg portion 44 and the panel pressing flat plate portion 42 can be reliably inserted into the through hole 10 of the panel 4.

  Further, since the leg portion 44 is formed so that the width dimension of the tip end portion 44a gradually increases toward the tip end, even if the tip end portion 44a is bent outward, it is shown in FIG. As described above, both end portions in the width direction of the distal end portion 44 a can be appropriately pressed against the inner peripheral surface of the through hole 10.

  Next, FIGS. 4 to 8 are views referred to for explaining the panel connecting member 60 according to the second embodiment of the present invention. In the present embodiment, the case where the panel connecting member 60 is applied to the conventional free access floor 22 shown in FIGS. 13 and 14 will be described.

  As shown in FIGS. 4 and 5, the panel connecting member 60 according to the present embodiment includes one disk-shaped flat plate portion 62 for panel pressing and four sets of engaging units 64 (engaging members). It is prepared for. As shown in FIG. 5, the engagement unit 64 includes a flexible synthetic resin engagement operation unit 66 and a drive operation unit 68 that operates the engagement operation unit 66. Yes.

  A mortar-like hole 70 having a diameter on the upper surface 62a side larger than a diameter on the lower surface 62b side on the back side is formed in the panel holding plate 62. Further, the engagement operating portion 66 of the engagement unit 64 has a length in a direction perpendicular to the upper surface 62a of the panel pressing flat plate portion 62, and the fixing portion 66a at the upper end thereof has a shape like a head of a countersunk screw. Is formed. Further, the engaging operation portion 66 is fixed to the panel pressing flat plate portion 62 by fitting the fixing portion 66a into the hole 70 of the panel pressing flat plate portion 62 and bonding the mutual contact surfaces. It is connected.

  Further, the engagement actuating portion 66 is formed in a substantially columnar shape except for the fixing portion 66a such as a countersunk screw head, and a constricted portion 66c is formed in the middle of the length portion. The engagement portion 66b below the constricted portion 66c has four cuts S formed extending in the four directions from the center position in the cross section perpendicular to the length direction, as shown in FIG. By being provided over the length portion of the joining portion 66b, the engaging portion 66b is divided into four portions in the cross section.

  The drive operation portion 68 of the engagement unit 64 has a substantially cylindrical shape, and initially, the operation portion 68a at the upper end in the length direction is upward from the upper end surface of the fixed portion 66a of the engagement operation portion 66. The length of the drive operating portion 68 other than the protruding length of the operating portion 68a is housed in the engagement operating portion 66. The driving portion 68b at the lower end of the driving operation portion 68 in the drawing is engaged with a stepped portion 66d formed on the inner side of the engaging portion 66b of the engaging operating portion 66 at the tip shoulder portion.

  When the operation unit 68a of the drive operation unit 68 is pushed in the direction indicated by the arrow P by a finger or the like in FIG. 5 and pushed downward in the engagement operation unit 66, as shown in FIG. The front shoulder portion of the driving portion 68b pushes open the step portion 66d inside the engaging portion 66b and descends below the step portion 66d.

  At this time, when the driving portion 68b enters the small diameter portion below the step portion 66d inside the engaging portion 66b, the lower engaging portion 66b is moved from the constricted portion 66c of the engaging operating portion 66 to the constricted portion 66c. Rotate the fulcrum to push it outward. As a result, as shown in FIGS. 6 and 8, the engaging portion 66b of the engaging operating portion 66 is configured such that the diameter of the outer peripheral portion in the cross section perpendicular to the length direction is enlarged.

  In addition, the engagement unit 64 operates the operation portion 68a of the drive operation portion 68 from the state shown in FIG. 6 and pulls it upward from the upper surface of the fixed portion 66a, whereby the front shoulder portion of the drive portion 68b is engaged. Ascending from the stepped portion 66 of the joint portion 66b, the engaging portion 66b rotates in the opposite direction to the above and can return to the original state as shown in FIGS.

  As shown in FIG. 9, in the panel connecting member 60 according to the present embodiment, the panel pressing flat plate portion 62 is provided in each panel 24 at a position where the corners of the panel 24 of the free access floor 22 are gathered in one place. As shown in FIG. 10, the engagement unit 64 is inserted into the through hole 30 of each panel 24 and is engaged in a cross section perpendicular to the length direction of the engagement unit 64. The diameter of the outer peripheral part of the part 66b expands, and the outer peripheral part presses and engages with the inner peripheral surface of the through-hole 30, thereby connecting the panels 24 to each other.

  According to the panel connecting member 60 according to the present embodiment as described above, the individual panels 24 are connected to each other by an earthquake or the like by connecting the respective corners of the panel 24 with respect to the existing panel free system free access floor 22. Since it can be prevented from swinging independently, the earthquake resistance of the free access floor 22 can be easily improved.

  Further, the engagement unit 64 can enlarge or reduce the diameter of the outer peripheral portion of the engagement portion 66b of the engagement operation portion 66 by the operation of the operation portion 68a of the drive operation portion 68. The member 60 can be detachably engaged with the through holes 30 at the corners of the panel 24 of the free access floor 22.

  In the panel connection member 40 according to the first embodiment, the panel pressing flat plate portion 42 is formed with four concave portions 42b that are cut out in a fan shape as shown in FIG. However, the present invention is not limited to such a planar shape.

  In addition, the panel connecting member 40 according to the first embodiment has been described with respect to the case where the distal end portion 44a of the leg portion 44 is formed so that the width dimension gradually increases toward the distal end. You may form with the same width dimension as height parts other than the front-end | tip part 44a.

  When the leg portion 44 is formed in this way, the panel connecting member 40 also has the leg portion 44 as the through hole 30 for the panel 24 of the free access floor 22 to which the second embodiment is applied. The panel connecting member 40 can be attached between the panels 24 at the positions where the corners of the panels 24 gather at one place.

  Further, in the panel connecting member 40 according to the first embodiment, the raised portion 48 is formed by the drawing process continuously from the panel pressing flat plate portion 42 to the leg portion 44. Such a raised portion 48 is formed. Instead of this, only one of the panel pressing flat plate portion 42 and the leg portion 44 is formed, or each of the panel pressing flat plate portion 42 and the leg portion 44 is separately formed with a raised portion having another shape by drawing. You may make it do. Further, the panel pressing flat plate portion 42 and / or the leg portion 44 may be provided with another reinforcing structure in addition to the raised portion by such drawing processing.

  In the panel connecting member 40 according to the first embodiment, the leg portion 44 is bent so that the angle between the leg portion 44 and the flat plate portion 42 for panel pressing is slightly smaller than a right angle, that is, an acute angle. However, it may be bent so as to be substantially perpendicular.

  Further, in the panel connecting member 40 according to the first embodiment, the leg portion 44 is formed so that the tip end portion 44a faces slightly outside by being bent at an intermediate position in the height, as described above. When the angle between the leg portion 44 and the panel pressing flat plate portion 42 is bent at a substantially right angle, the tip end portion 44a may not be formed so as to face the outside.

  Further, the panel connecting member 60 according to the second embodiment is attached to the type of the panel 24 of the free access floor 22, but the panel 4 of the free access floor 2 to which the first embodiment is applied. It can also be installed for other types.

  Even when the panel connecting member 60 is attached to the type of the panel 4 of the free access floor 2 as described above, the engagement operating portion is inserted in the state where the engaging unit 64 of the panel connecting member 60 is inserted into the through hole 10 of the panel 4. When the diameter of the outer peripheral portion of the engaging portion 66b of 66 is increased, the outer peripheral portion of the engaging portion 66b can be brought into pressure contact with the opposing portion of the inner peripheral surface of the through-hole 10, so that each panel 4 This is because the corners can be connected to each other.

2 Free Access Floor 4 Free Access Floor Panel 8 Adjustment Base 10 Through Hole 12 Small Rib 14 Large Rib 22 Free Access Floor 24 Free Access Floor Panel 30 Through Hole 40 Panel Connecting Member 42 Panel Holding Plate 42 Leg 44a Tip 46 , 48 Raised portion 60 Panel connecting member 62 Panel holding plate 62a Upper surface 62b Lower surface 64 Engagement unit 66 Engagement operation portion 66a Fixing portion 66b Engagement portion 66c Constriction portion 66d Step portion 68 Drive operation portion 68a Operation portion 68b Drive portion

Claims (2)

A panel connecting member that connects a plurality of panels having a through-hole opened on the upper surface,
A panel holding plate having a plurality of holes and placed on the upper surface of the panel;
A plurality of engagement actuating parts having an upper end connected to the panel pressing flat plate and a lower end inserted through the hole of the panel pressing flat plate and the through hole of the panel;
A drive operation unit having a lower end housed in the engagement operation unit;
In the middle of the length portion of the lower end portion, the engagement operation portion is divided into a constricted portion whose outer diameter is smaller than the outer diameter of the other length portions, and a plurality of portions below the constricted portion. An engaging portion,
The engagement portion is pushed by the lower end portion of the drive operation portion and rotates so as to open with the constriction portion as a fulcrum, so that the outer diameter in the cross section perpendicular to the length direction is enlarged. And the panel connection member characterized by engaging with the peripheral part of the through-hole of the said panel . The panel connecting member according to claim 1, wherein the enlarged outer diameter of the engaging portion can be returned to the original outer diameter.

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