Fixture tip-over prevention structures, and panel restraining members, panel connecting members, and panel under-panel members used in fixture tip-over prevention structures

Abstract

To prevent falling of a store fixture which is fixed to a floor panel of a double floor.SOLUTION: A store fixture falling preventive structure for preventing falling of a store fixture 1 which is arranged on a double floor having a plurality of floor panels 53 laid on the floor surface 51 through a panel support body 70, comprises: a fixing tool 10 for fixing the store fixture 1 to a store fixture fixing floor panel 53A which is selected from the plurality of floor panels 53; and a panel regulation member 60 for preventing lifting of the store fixture fixing floor panel 53A. The panel support body 70 comprises a support pedestal part 72 protruding laterally from an upper part of a support leg 71 erected on the floor surface 51, for supporting an edge part 53e of the floor panel 53. The panel regulation member 60 comprises: an insertion part 61 being inserted into a gap S between the store fixture fixing floor panel 53A and an adjacent floor panel 53B adjacent thereto; an upper side engagement part 62 extending from an upper end of the insertion part 61 toward an upper side of the store fixture fixing floor panel 53A; and a lower side engagement part 63 extending from a lower end of the insertion part 61 toward a lower side of the support pedestal part 72.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present invention relates to a structure for preventing fixtures placed on a raised floor having a plurality of floor panels laid on the floor surface via panel supports from tipping over. Here, fixtures include furniture such as cabinets and shelves (racks), but also include a wide range of items that are placed on the floor and are at risk of tipping over in an earthquake, such as electrical (electronic) products such as multifunction printers and refrigerators, product display devices, art exhibit devices, personal computer servers, and distribution boards. [Background technology]

[0002] Many methods have been proposed to prevent cabinets from tipping over in the event of an earthquake. These methods include methods that allow cabinets to sway but reduce the degree of that sway, and methods that prevent cabinets from moving independently even in the event of an earthquake (the building moves during an earthquake, so cabinets also sway relative to the ground, but the idea is to prevent them from moving relative to the building).

[0003] An example of the former method is a seismic isolation device that moves cabinets relative to the floor, as disclosed in Patent Document 1. On the other hand, as a means to prevent cabinets from moving independently, proposals have been made to connect the top surfaces of cabinets to the wall of the building with brackets, as disclosed in Patent Document 2, and to place anti-tip plates on which cabinets are placed and fixed inside the OA floor, as disclosed in Patent Document 3. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2007-037990 [Patent Document 2] Japanese Patent Application Laid-Open No. 2016-002420 [Patent Document 3] Patent No. 3541362 Summary of the Invention [Problem to be solved by the invention]

[0005] The solution of Patent Document 1 is considered theoretically superior, but has the problem of an extremely complicated structure. On the other hand, the solution of Patent Document 2 has a simple structure, but has problems such as being unable to be applied to layouts where the cabinets are placed away from the walls of the building (so-called island placement) and the difficulty of attaching brackets when the cabinets are tall. Furthermore, the solution of Patent Document 3 has problems such as the construction of incorporating anti-tip plates into the access floor being extremely time-consuming and being unable to be applied to floors that are not access floors, resulting in poor versatility.

[0006] The most common and simplest method of preventing fixtures from tipping over is to fasten them directly to the floor or wall, and fixtures that are not placed along the wall have no choice but to be fastened to the floor. However, if fixtures are fastened to the floor panels of an OA floor, there is a risk that if the fixtures tilt due to floor shaking caused by an earthquake or other event, the floor panels to which the fixtures are fastened will lift up, causing the fixtures to tip over along with the floor panels. There are also types of OA floors that are equipped with panel support members that hold down the four corners of the floor panels from above. However, even with these types, there is a risk that the panel support members will break when the fixtures tilt, causing the fixtures to tip over along with the floor panels.

[0007] The present invention was made in response to this situation, and its purpose is to prevent fixtures fixed to the floor panels of a double floor from falling over. [Means for solving the problem]

[0008] A first aspect of the fixture tip-over prevention structure of the present invention is a structure for preventing tip-over of fixtures placed on a double floor having a plurality of floor panels laid on the floor surface via panel supports, and comprises a fixing device for fixing the fixture to a fixture-fixed floor panel selected from the plurality of floor panels, and a panel regulating member for preventing the fixture-fixed floor panel from lifting up, the panel support having a support base portion that extends sideways from the top of a support leg erected on the floor surface and supports the edge of the floor panel, and the panel regulating member having an insertion portion that passes vertically through the gap between the fixture-fixed floor panel and its adjacent floor panel, an upper locking portion that extends from the upper end of the insertion portion toward above the fixture-fixed floor panel, and a lower locking portion that extends from the lower end of the insertion portion toward below the support base portion.

[0009] According to the first aspect of the present invention, even if the fixture-fixed floor panel attempts to lift when the floor shakes due to an earthquake or the like, the lower locking portion of the panel restricting member catches on the support base of the panel support, preventing the fixture from lifting. This prevents fixtures from tipping over. Furthermore, the panel restricting member can be realized with a simple structure formed, for example, by bending sheet metal, and can be attached to an existing double floor structure without any additional work, so this aspect of the present invention can prevent fixtures from tipping over with low cost and simple work.

[0010] A second aspect of the fixture tip-prevention structure of the present invention is a structure for preventing tip-over of fixtures placed on a double floor having a plurality of floor panels laid on the floor surface via panel supports, and comprises a fixing device for fixing the fixture to a fixture-fixed floor panel selected from the plurality of floor panels, and a panel connecting member for preventing the fixture-fixed floor panel from lifting up, wherein the panel support is configured to support the edge of the floor panel with a support base portion while pressing the edge downward with a pressing member, and the panel connecting member has an insertion portion that passes vertically through the gap between the fixture-fixed floor panel and the adjacent floor panel next to it, an upper locking portion that extends from the upper end of the insertion portion toward above the fixture-fixed floor panel, and a lower locking portion that extends from the lower end of the insertion portion toward below the adjacent floor panel.

[0011] According to the second aspect of the present invention, even if the fixture-fixed floor panel attempts to lift up during floor shaking due to an earthquake or other event, the lower locking portion of the panel connecting member catches on the underside of the adjacent floor panel, preventing the fixture from lifting. This prevents fixtures from tipping over. Furthermore, the panel connecting member can be realized with a simple structure formed, for example, by bending sheet metal, and can be attached to an existing double floor structure without any additional work, so this aspect of the present invention can prevent fixtures from tipping over with low cost and simple work.

[0012] A third aspect of the fixture tip-over prevention structure of the present invention is a structure for preventing tip-over of fixtures placed on a double floor having a plurality of floor panels laid on the floor surface via panel supports, and is provided with a fixture for fixing the fixture to a fixture-fixed floor panel selected from the plurality of floor panels, and a panel under-member for preventing the floor panel from lifting up, the panel support being configured to support the edge of the floor panel with a support base portion while pressing the edge downward with a pressing member, the panel under-member being positioned from below the fixture-fixed floor panel to below the adjacent floor panel, and the fixture being connected to the panel under-member by penetrating the fixture-fixed floor panel. The panel lower member is not bolted to the floor surface. It is something.

[0013] According to the third aspect of the present invention, even if the fixture-fixed floor panel tries to lift up when the floor shakes due to an earthquake or the like, the lower panel member catches on the back surface of the adjacent floor panel, preventing the fixture-fixed floor panel from lifting up and preventing fixtures from tipping over. Furthermore, the panel connecting member can be realized with a simple structure formed, for example, from metal pipes or sheet metal bending processing, and can be attached to an existing double floor structure without any additional work, so this aspect of the present invention can prevent fixtures from tipping over with low cost and simple work.

[0014] The fixture tip-over prevention structure of the present invention includes a fixture tip-over prevention device interposed between the fixture and the fixing device, and the fixture tip-over prevention device includes an elastic plate placed on the fixture fixed floor panel below the fixture, the plate including a plurality of connecting portions that are connected to the fixture, and a fixing portion that is fixed to the floor panel at a position between the plurality of connecting portions in a plan view, and the fixing portion may be fixed to the fixture fixed floor panel by the fixing device.

[0015] According to this aspect, by fixing the fixture to the floor panel via the fixture anti-tip device, it is possible to prevent the fixture from tipping over due to an earthquake or the like. Furthermore, when the fixture sways due to an earthquake or the like, the plate of the anti-tip device elastically bends and deforms, thereby reducing the force applied to the fixing part and preventing the anti-tip device from peeling off from the floor panel. Furthermore, because the anti-tip device and the fixture can be connected at least two points sandwiched between the fixing part, it is possible to prevent the fixture from tipping over while preventing the anti-tip device from peeling off from the floor panel in the event of shaking in two directions, for example, forward and backward or left and right.

[0016] The present invention does not exclude fixtures that have other functions, such as shock absorbers, in addition to the anti-tip device. Having a device that assists the anti-tip device is preferable as an earthquake countermeasure for fixtures. [Effects of the Invention]

[0017] The fixture tip-over prevention structure of the present invention can prevent fixtures fixed to the floor panels of a double floor from tipping over. [Brief explanation of the drawings]

[0018] [Figure 1] 1A and 1B show fixtures and an anti-tip device, where (A) is a side view and (B) is a perspective view from below. [Figure 2] FIG. 2 is a separated perspective view of the fixture and the fall prevention device from above. [Figure 3] 3A is a plan view showing the base and the tip-over prevention device, and FIG. 3B is a cross-sectional view taken along the line IIIB-IIIB in FIG. 3A. [Figure 4]FIG. 9 is a cross-sectional view taken along the line IV-IV in FIG. 8. [Figure 5] FIG. 2 is an exploded perspective view showing the fall prevention device. [Figure 6] FIG. 10 is a cross-sectional view illustrating the vibration damping effect of the anti-toppling device. [Figure 7] 10 is a plan view showing an example of the arrangement of a panel restricting member together with a floor panel. FIG. [Figure 8] 10 is a plan view showing the panel regulating member together with the base, the anti-tip device, and the floor panel. FIG. [Figure 9] 1A shows a panel support, where (A) is a plan view, (B) is a side view, and (C) is an isolated side view. [Figure 10] 10A and 10B are side views for explaining a procedure for installing the panel restricting member. [Figure 11] FIG. 10 is a plan view for explaining the installation procedure. [Figure 12] FIG. 2 is a perspective view showing the panel restricting member together with the floor panel. [Figure 13] FIG. 10 is a cross-sectional view illustrating an anchor member as an example of a fixing tool. [Figure 14] 1A is a plan view showing an example of the arrangement of panel regulating members, and FIG. 1B is a side view showing an example of the arrangement of panel regulating members relative to an intermediate panel support member. [Figure 15] 10 is a plan view showing a modified example of the panel restricting member together with the base, the anti-tip device, and the floor panel. FIG. [Figure 16] FIG. 16 is a cross-sectional view taken along the line XVI-XVI in FIG. [Figure 17] 10A and 10B are side views for explaining a procedure for installing a modified example of the panel restricting member. [Figure 18] FIG. 10 is a plan view for explaining the installation procedure. [Figure 19] FIG. 10 is a plan view showing an example of the arrangement of panel connecting members together with floor panels. [Figure 20] 10 is a cross-sectional view illustrating the arrangement structure of the panel connecting member. FIG. [Figure 21] FIG. 10 is a plan view showing an example of the arrangement of a modified example of the panel connecting member together with the floor panel. [Figure 22] FIG. 10 is a cross-sectional view illustrating the arrangement structure of the modified example. [Figure 23] FIG. 1A is a plan view showing an example of the arrangement of a panel lower member, and FIGS. 1B, 1C, and 1D are a plan view, a front view, and a side view of the same panel lower member. [Figure 24] FIG. 4 is a cross-sectional view illustrating the arrangement structure of the panel lower member. [Figure 25] 1A is a plan view showing an example of the arrangement of a modified example of the panel lower member, and FIG. 1B, FIG. 1C, and FIG. 1D are a plan view, a front view, and a side view of the same modified example. [Figure 26] FIG. 10 is a cross-sectional view illustrating the arrangement structure of the modified example. DETAILED DESCRIPTION OF THE INVENTION

[0019] <Outline of the first embodiment> Next, an embodiment of the present invention will be described with reference to the drawings. First, an embodiment shown in Figures 1 to 11 will be described. This embodiment is applied to preventing a steel cabinet 1 formed in a horizontally elongated rectangular shape in a plan view from tipping over.

[0020] As shown in Figures 1 to 4, cabinet 1 is placed on a floor F of a double-floor structure having a plurality of floor panels 53 laid on a floor slab 51 (floor surface) via panel supports 70. Cabinet 1 comprises a cabinet main body 2 that opens forward, a double-door door 3 that can rotate horizontally to open and close the opening, and a steel plate base 4 on which cabinet main body 2 rests. Because the depth of cabinet 1 is much smaller than its height, it is prone to tipping forward or backward in the event of an earthquake. Therefore, in this embodiment, a tip-over prevention device 6 is used.

[0021] As shown in Figures 1, 4, and 7 to 11, fixing screws 10 (an example of a fixing device) are provided for fixing the cabinet 1 to a fixture-fixed floor panel 53A selected from the plurality of floor panels 53, and panel restricting members 60 are provided for preventing the fixture-fixed floor panel 53A from lifting up. As shown in Figures 7 and 8, the cabinet 1 is placed on the floor F, straddling the two fixture-fixed floor panels 53A. Four panel restricting members 60 are provided at locations corresponding to the four corners of the cabinet 1. Note that the floor finishing material 54 is not shown in Figures 7 and 8.

[0022] The panel support body 70 has a support base 72 that projects sideways from the top of the support leg 71 that stands on the floor slab 51 and supports the edge 53a of the floor panel 53. The panel restricting member 60 has an insertion portion 61 that passes vertically through the gap S between the fixture fixed floor panel 53A and the adjacent floor panel 53B, an upper locking portion 62 that extends from the upper end of the insertion portion 61 toward the top of the fixture fixed floor panel 53A, and a lower locking portion 63 that extends from the lower end of the insertion portion 61 toward the bottom of the support base 72. The panel restricting member 60 is made of a metal plate.

[0023] 1 and 4, the anti-tip devices 6 are installed between the floor F and the cabinet 1 to prevent the cabinet 1 from tipping over. In this embodiment, a pair of anti-tip devices 6 are provided on the left and right below the cabinet 1. The left and right anti-tip devices 6 have the same shape and are made of elastic metal (steel) plates that are placed on the floor F below the cabinet 1.

[0024] The anti-tip device 6 has a plate-shaped base 7 that contacts the floor F, a pair of front and rear connecting parts 8 provided at the front and rear ends of the base 7, and a fixing part 9 provided on the base 7 at a position between the front and rear connecting parts 8 in a plan view. The connecting part 8 is connected to the base 4 of the cabinet 1 by a screw-in type adjuster member 23, while the fixing part 9 is fixed to the floor F (furniture fixed floor panel 53A) by fixing screws 10, thereby fixing the cabinet 1 to the floor F (furniture fixed floor panel 53A) via the anti-tip device 6.

[0025] The fastener for fixing the fall prevention device 6 to the fixture fixed floor panel 53A is not limited to the fixing screw 10. For example, the fall prevention device 6 (cabinet 1) may be fixed to the fixture fixed floor panel 53A using a scissors-type anchor member 11 (see FIG. 13) such as an IT hanger.

[0026] In this embodiment, even if the fixture fixed floor panel 53A attempts to lift when the floor F shakes due to an earthquake or the like, the lower locking portion 63 of the panel restricting member 60 catches on the support base portion 72 of the panel support body 70, preventing the fixture fixed floor panel 53A from lifting. This prevents the cabinet 1 from tipping over. Furthermore, the panel restricting member 60 can be realized with a simple structure formed, for example, by bending sheet metal, and can be attached to an existing double floor structure without any additional work, so this embodiment can prevent fixtures from tipping over with low cost and simple work.

[0027] Furthermore, in this embodiment, by fixing the cabinet 1 to the fixture fixed floor panel 53A on the floor F via the tip-over prevention device 6, it is possible to prevent the cabinet 1 from tipping over due to an earthquake or the like. Furthermore, when the cabinet 1 sways due to an earthquake or the like, the base 7 of the tip-over prevention device 6 elastically bends and deforms, thereby reducing the force applied to the fixing part 9 and preventing the tip-over prevention device 6 from peeling off from the floor F.

[0028] Furthermore, in this embodiment, the anti-tip device 6 and the cabinet 1 are connected at two locations, front and rear, using front and rear connecting parts 8 that sandwich the fixing part 9. This makes it possible to prevent the cabinet 1 from tipping over while suppressing separation of the anti-tip device 6 from the floor F in response to shaking in two directions, front and rear (forward and backward).

[0029] <Floor configuration> As shown in Figures 4 and 7 to 11, in this embodiment, the floor F has a double floor structure known as an OA floor. Specifically, the floor F includes floor panels 53 supported on a floor slab 51 such as a concrete slab by support legs 71 with a space provided between the floor slab 51 and the floor panels 53, and a floor finishing material 54 such as carpet laid on the floor panels 53. The floor panels 53 are made of, for example, metal or concrete.

[0030] As shown in Figure 9, the panel support body 70 has a support leg 71 erected on the floor slab 51, a support base 72 extending laterally from the top of the support leg 71, a positioning member 73 attached to the upper surface of the support base 72, and a retaining member 74 attached to the top of the positioning member 73. The support leg 71 has a height adjustment function, and a flange 71a attached to the bottom of the support leg 71 is fixed to the floor slab 51 with adhesive, bolts, or the like (not shown). The support base 72 is a donut-shaped disk and is fixed to the top end of the support leg 71 by welding or the like. Four base protrusions 72a extending radially are provided on the top surface of the support base 72 at equal intervals around the periphery. The support leg 71 and the support base 72 are made of metal.

[0031] The positioning member 73 is made of resin and has a cylindrical portion 73b protruding from the center of the upper surface of a disk-shaped base portion 73a, and four positioning ribs 73c extending in all directions from the side surfaces of the cylindrical portion 73b. Recesses into which the support base portion 72 and base protrusions 72a fit are formed inside the base portion 73a and the ribs 73c. ​​By fitting the positioning member 73 into the support base portion 72 from above, engaging claws (not shown) provided on the peripheral ribs of the base portion 73a engage with the underside of the peripheral portion of the support base portion 72, thereby connecting the support base portion 72 and the positioning member 73 so that they cannot come loose.

[0032] 7, the floor panel 53 is generally square in plan view, with notches 53b formed at the four corners 53e (which are also the edges 53a). The upper surfaces of the corners 53e are formed with generally quadrant-shaped recesses 53c into which the retaining members 74, described below, fit. The lower surfaces of the corners 53e are provided with buffer members 53d made of an elastic material such as rubber.

[0033] As shown in Figures 7, 9, etc., a large number of panel supports 70 are erected at equal intervals in a grid pattern on a floor slab 51. Corner portions 53e of four floor panels 53 are disposed on the support base portion 72 of each panel support 70. In other words, each floor panel 53 is supported by four panel supports 70. Adjacent floor panels 53 are disposed close to each other. Between adjacent floor panels 53, rib portions 73c of positioning members 73 are interposed near the corner portions 53e, while gaps S are formed in positions that do not overlap with the panel supports 70 in a plan view.

[0034] As shown in Figure 9 and other figures, a pressing member 74 is detachably attached to the upper end of the cylindrical portion 73b of the positioning member 73. The pressing member 74 is made of resin and has a threaded portion 74b hanging down from the center of the underside of a disk-shaped pressing portion 74a that fits into the recesses 53c of the four floor panels 53 placed on the support base 72. By screwing the threaded portion 74b of the pressing member 74 into a female thread (not shown) cut into the inner wall of the cylindrical portion 73b of the positioning member 73, the pressing member 74 is connected to the positioning member 73 so that it cannot be removed, and the pressing portion 74a fits into the recesses 53c of the floor panel 53 and faces the upper surface of the corner 53e. This prevents the floor panel 53 from lifting up.

[0035] Note that instead of the retaining member 74, a metal disk-shaped cap member having a screw insertion hole in the center may be used, and the cap member may be connected to the support leg 71 with a screw member. In this case, a screw hole is provided on the upper end side of the support leg 71, and the screw hole is exposed on the upper surface side of the support base portion 72. A screw member is inserted from above into the screw insertion hole of the cap member and screwed into the screw hole of the support leg 71 via the cylindrical portion 73b of the positioning member 73. In this way, the cap member is directly connected to the support leg 71, and the floor panel 53 can be more firmly prevented from lifting up.

[0036] In this way, the floor panel 53 is prevented from lifting up by the retaining member 74. However, with regard to the fixture fixed floor panel 53A to which the cabinet 1 is fixed, when the cabinet 1 tilts in response to shaking of the floor F due to an earthquake or the like, a force acts in the direction in which the fixture fixed floor panel 53A is lifted, which could damage the retaining member 74, and this cannot be said to be a sufficient measure to prevent tipping. Therefore, in this embodiment, a panel restricting member 60 that prevents the fixture fixed floor panel 53A from lifting up is attached to the double-layered floor F.

[0037] <Configuration of panel restricting member> 4, 10 to 12, etc., the plate-shaped upper locking portion 62 of the panel restricting member 60 is generally rectangular in plan view, and a plate-shaped insertion portion 61 hangs down from the center of one side of the upper locking portion 62, extending along that side in plan view. A plate-shaped lower locking portion 63 extends from the lower end of the insertion portion 61 in a direction along the side of the upper locking portion 62 in plan view. The insertion portion 61 and the lower locking portion 63 form an inverted T shape in side view.

[0038] A pair of tilt suppressing portions 64 extend from both edge portions of the above-mentioned one side of the upper locking portion 62, sandwiching the base end portion of the insertion portion 61. The insertion portion 61 and the pair of tilt suppressing portions 64 are concave in plan view. Both edge portions of the lower locking portion 63 in the direction along the above-mentioned one side are located below the tilt suppressing portions 64.

[0039] <Installation of panel restraining members> As shown in Figures 10 to 12, the thickness of the insertion portion 61 and the lower locking portion 63 is set to be smaller than the gap S. The insertion portion 61 and the lower locking portion 63 are inserted into the gap S from above before the floor finishing material 54 is laid or after the floor finishing material 54 has been peeled off (see the upper diagram in Figure 10).

[0040] The panel restricting member 60 is inserted into the gap S with the upper locking portion 62 positioned above the fixture fixed floor panel 53A. The upper locking portion 62 abuts against the upper surface of the fixture fixed floor panel 53A, and the tilt suppression portion 64 abuts against the upper surface of the adjacent floor panel 53B, maintaining the vertical position of the insertion portion 61 and the lower locking portion 63 (see the middle diagrams of Figure 10 and Figure 11).

[0041] Next, the panel restricting member 60 is slid along the gap S to dispose the lower locking portion 63 below the support base portion 72 (see the lower diagrams of FIGS. 10 and 11). For example, the panel restricting member 60 is slid until the end of the lower locking portion 63 comes into contact with the support leg 71.

[0042] When a force is applied in the direction that causes the fixture fixed floor panel 53A to lift up, the lower locking portion 63 of the panel restricting member 60 comes into contact with the underside of the support base portion 72 (positioning member 73), and the upper locking portion 62 restricts the upward movement of the fixture fixed floor panel 53A. This allows the panel restricting member 60 to prevent the fixture fixed floor panel 53A from lifting up. Furthermore, the panel restricting member 60 can be installed without removing the floor panel 53, making it easy to install.

[0043] Furthermore, even if the panel support body 70 is configured without a retaining member 74, the fixture fixed floor panel 53A can be prevented from floating up by positioning the lower engaging portion 63 of the panel regulating member 60 below the support base portion 72.

[0044] <Configuration of the fall prevention device> 3 to 5, the anti-tip device 6 is a generally rectangular shape with its front-to-back length (vertical length) in plan view, and the width dimension (left-to-right dimension) of the anti-tip device 6 is formed to be approximately one-fifth the width dimension of the laterally elongated frame-shaped base 4. The depth dimension (front-to-back dimension) of the anti-tip device 6 is formed to be shorter than the depth dimension of the base 4. The planar shape and planar size of the anti-tip device 6 are not limited to those in this embodiment and can be changed as appropriate.

[0045] As described above, the tip-prevention device 6 has a plate-shaped base 7 that contacts the floor F, a pair of front and rear connecting parts 8 provided at the front and rear ends of the base 7, and a fixing part 9 provided on the base 7 at a position between the front and rear connecting parts 8 in a plan view. The front and rear connecting parts 8 are formed by bending the front and rear edge parts of a steel plate that constitutes the tip-prevention device 6.

[0046] 3 to 5, the connecting portion 8 includes standing portions 81 extending upward from the front and rear end portions of the base portion 7, flange portions 82 extending from the upper ends of the standing portions 81 to the outside of the base portion 7 (the opposite side from the base portion 7 in a plan view), and engagement holes 83 that open up and down and are provided in the flange portions 82. In this embodiment, the standing portions 81 are provided in a vertical position relative to the base 7 which is in a horizontal position, and the flange portions 82 are provided in a horizontal position. The engagement holes 83 are provided in the center position of the flange portions 82 in the left-right direction.

[0047] The width dimensions of the base 7 and the connecting portion 8 (the standing portion 81 and the flange portion 82) are the same. The base 7 has a generally rectangular shape with its front and back longer, while the standing portion 81 and the flange portion 82 have a generally rectangular shape with its left and right longer (horizontally longer).

[0048] As shown in Figures 3 to 5, screw-type adjuster members 23 are attached upward from below to positions near the four corners of the base 4 of the cabinet 1. By rotating the adjuster members 23, the height of the base 4 can be adjusted. In this embodiment, the adjuster members 23 constitute connecting screws that connect the base 4 and the tip-over prevention device 6.

[0049] In the tip-over prevention device 6, the distance between the front and rear engagement holes 83 is configured to be the same as the distance between the pair of adjuster members 23 lined up in the front-to-rear direction on the base 4. The left and right tip-over prevention devices 6 are non-detachably connected to positions near the left and right edges of the base 4 by inserting the shafts of the adjuster members 23 into the engagement holes 83 of the connecting portion 8 from below.

[0050] Furthermore, the anti-tip device 6 is configured so as not to protrude from the cabinet 1 (base 4) in a plan view when attached to the base 4. This prevents the anti-tip device 6 from being seen by people, which could cause a poor appearance, and prevents people from tripping over the anti-tip device 6.

[0051] 3 to 5, the fixing portion 9 of the tip-prevention device 6 has a large number of screw insertion holes 91 arranged in a staggered pattern. Each screw insertion hole 91 is sized to allow the shank of a fixing screw 10 to be screwed into the floor F from above to be inserted therethrough. The arrangement area of ​​the screw insertion holes 91 in the fixing portion 9 is divided into left and right areas so as not to overlap with the auxiliary frame 21 of the base 4, which will be described later, in a plan view.

[0052] <Base unit configuration> 1 to 5, the basic structure of the base 4 is the same as that of a conventional base, and includes left and right side frames 16 and a front frame 17 and a rear frame 18 that connect the left and right side frames 16. Each of the frames 16, 17, and 18 is formed in a groove shape with an upper horizontal piece 19, a lower horizontal piece 20, and an upright piece 20a provided at the tip of the lower horizontal piece 20.

[0053] The lower horizontal piece 20 is narrower than the upper horizontal piece 19. Furthermore, the upper horizontal piece 19 of the front frame 17 is wider than the upper horizontal piece 19 of the rear frame 18, but the two may be the same width.

[0054] Auxiliary frames 21, which are longitudinal in the front and rear directions, are disposed near both the left and right sides of the base 4. The auxiliary frame 21 has a U-shape that opens upward, and both the front and rear ends are fixed to the front frame 17 and the rear frame 18 by welding or the like.

[0055] 3(B) and 4, the bottom surface 22 of the auxiliary frame 21 is positioned higher than the lower end of the base 4. The connecting portions 8 of the fall prevention device 6 are non-detachably connected to both front and rear ends of the bottom surface 22 of the auxiliary frame 21 by screw-in type adjuster members 23 via nut members 32.

[0056] As shown in Figure 5, when attaching the anti-tip device 6 to the base 4, with the base 4 turned upside down, the shaft of the adjuster member 23 is inserted into the engagement hole 83 of the connecting portion 8 of the anti-tip device 6 and screwed into the nut member 32 from above. This makes it possible to connect the base 4 and the anti-tip device 6 with a low-cost and simple configuration without using a dedicated connecting screw. In addition, the anti-tip device 6 can be connected to the base 4 with the easy task of screwing the adjuster member 23 into the nut member 32 in a short time.

[0057] It is also possible to connect the connecting portion 8 of the anti-tip device 6 to the auxiliary frame 21 using a separately prepared fastener such as a connecting screw, without using the adjuster member 23 and the nut member 32. It is also possible to connect the anti-tip device 6 to another portion of the base 4 (for example, the lower horizontal piece 20) using the adjuster member 23 or a fastener such as a dedicated connecting screw. Furthermore, one connecting portion 8 may be connected to the base 4 with multiple fasteners.

[0058] <Summary of one embodiment> An example of the procedure for installing the tip-over prevention device 6 will be described. First, the base 4 is placed upside down as shown in Fig. 5. The tip-over prevention device 6 is connected to each of the left and right edges of the underside of the base 4 using the adjuster members 23.

[0059] Next, the base 4 with the tip-prevention device 6 on the bottom is placed at a desired position on the floor F. As shown in Figures 3 and 4, the shank of the fixing screw 10 is inserted from above through the screw insertion hole 91 provided in the fixing part 9 of the tip-prevention device 6, penetrates the floor finishing material 54, and is screwed into the floor panel 53 to be fixed.

[0060] At this time, since the fixing portion 9 of the tip-prevention device 6 is provided with a large number of screw insertion holes 91, it is possible to appropriately select the screwing position of the fixing screw 10. For example, even if a member (support leg 71 of the floor F) into which it is difficult to screw the fixing screw 10 exists below one screw insertion hole 91 of the base 4 and tip-prevention device 6 that have been placed in the desired position, the base 4 and tip-prevention device 6 can be fixed to the floor F using the other screw insertion holes 91 without changing their positions.

[0061] In this embodiment, one anti-tip device 6 is fixed to the floor F at two locations sandwiching the auxiliary frame 21 in plan view. In this way, the anti-tip device 6 can be firmly fixed to the floor F at multiple locations using multiple fixing screws 10.

[0062] Next, the cabinet body 2 of the cabinet 1 is placed on the base 4, and the bottom of the cabinet body 2 and the upper horizontal piece 19 of the base 4 are firmly connected using fasteners such as screws (not shown). As a result, the cabinet 1 is fixed to the floor F via the tip-over prevention device 6.

[0063] As shown in FIG. 6 , when floor F (building) shakes and cabinet 1 sways during an earthquake, anti-tip device 6 can reliably prevent cabinet 1 from moving or tipping over because fixing portion 9 is fixed to floor F with fixing screws 10. Furthermore, base 7 (including fixing portion 9) can bend and deform elastically, thereby reducing the force acting on fixing portion 9. For example, if base 4 were directly fixed to floor F with fixing devices such as screws, repeated earthquakes would cause a large pull-out force to be exerted on fixing portion 9, causing the fixing device to come off floor F and causing cabinet 1 to tip over. In contrast, in this embodiment, the pull-out force acting on fixing screws 10 when cabinet 1 shakes is reduced by deformation of base 7, significantly reducing separation of anti-tip device 6 from floor F. Therefore, cabinet 1 can be prevented from moving or tipping over even during repeated earthquakes, significantly improving safety.

[0064] Furthermore, in this embodiment, the anti-tip device 6 can be easily attached and detached by a simple operation using the adjuster member 23 provided on the base 4. Even after the anti-tip device 6 is fixed to the floor F with the fixing screws 10, the height of the base 4 (cabinet 1) can be adjusted by rotating the screw-in adjuster member 23, making the device highly practical and versatile. Furthermore, since the anti-tip device 6 is divided into two, left and right, for one base 4, the size of the anti-tip device 6 can be made smaller than the base 4, improving the convenience of transporting and storing the anti-tip device 6. The left and right anti-tip devices 6 may be connected by a single metal plate.

[0065] <Other examples of panel restriction member placement> 14, a plurality of panel restricting members 60 may be arranged for one panel support body 70, with the lower locking portion 63 of each panel restricting member 60 positioned below the support base portion 72 of one panel support body 70. Alternatively, an intermediate panel support body 70A may be provided to support a midpoint of the edge portion 53a of the floor panel 53, and the panel restricting member 60 may be provided so that the lower locking portion 63 is positioned below the support base portion 72 of the intermediate panel support body 70A.

[0066] 14(B), the intermediate panel support body 70A has support legs 71 and a support base portion 72, similar to the panel support body 70, but does not have base protrusions 72a, positioning members 73, or pressing members 74 (see FIG. 9, etc.). A buffer member 75 made of an elastic material such as rubber is provided on the upper surface of the support base portion 72 of the panel support body 70.

[0067] The intermediate panel support body 70A is disposed below and straddles the adjacent floor panels 53, and supports the middle portions of the opposing sides (edge ​​portions 53a) of those floor panels 53. The panel restricting member 60 can be disposed on the intermediate panel support body 70A in the same manner as the process of disposing the panel restricting member 60 on the panel support body 70. That is, the panel restricting member 60 can be disposed by the simple procedure of inserting the lower locking portion 63 and the insertion portion 61 of the panel restricting member 60 into the gap S, and then sliding the panel restricting member 60 until the lower locking portion 63 is positioned below the support base portion 72 of the intermediate panel support body 70A.

[0068] In addition, in a configuration in which two fixture fixed floor panels 53A are arranged next to each other as shown in Figures 7 and 14, when viewed from one fixture fixed floor panel 53A, the other fixture fixed floor panel 53A forms an adjacent floor panel 53B.

[0069] <Modification of Panel Regulating Member> The panel regulating member 60A shown in Figures 15 to 18 has an insertion portion 61A that passes vertically through the gap S between the fixture fixed floor panel 53A and its adjacent floor panel 53B, an upper engagement portion 62A that extends from the upper end of the insertion portion 61A toward above the fixture fixed floor panel 53A, and a lower engagement portion 63A that extends from the lower end of the insertion portion 61A toward below the support base portion 72.

[0070] The panel restricting member 60A is made of a metal plate and has a pair of flat insertion portions 61A. These insertion portions 61A are disposed in a substantially vertical position and are disposed on either side of the panel support body 70 in a plan view. A pair of upper locking portions 62A extend from the upper end of each insertion portion 61A and are disposed in a substantially horizontal position on the fixture fixed floor panel 53A.

[0071] The lower locking portion 63A has a generally semicircular shape in a plan view and is disposed in a generally horizontal position, straddling below the corners 53e of the floor panels 53A and 53B. The linear edge of the lower locking portion 63A is longer than the diameter of the support base 72 of the panel support body 70 and connects the lower ends of the pair of insertion portions 61A. A generally semicircular cutout 63a is provided in the center of the linear edge of the lower locking portion 63A, into which half of the support leg 71 of the panel support body 70 fits. With the cutout 63a fitted into the support leg 71, the lower locking portion 63A is fixed to the underside of the support base 72 of the panel support body 70 with an adhesive member 65 such as double-sided tape.

[0072] Even if the fixture fixed floor panel 53A attempts to lift up when the floor F shakes due to an earthquake or the like, the lower locking portion 63A of the panel restricting member 60A hooks onto the support base portion 72 of the panel support body 70, and the upper locking portion 62A restricts the upward movement of the fixture fixed floor panel 53A. This prevents the fixture fixed floor panel 53A from lifting up and prevents the cabinet 1 from tipping over. Furthermore, the panel restricting member 60A can be realized with a simple structure formed, for example, by sheet metal bending, and can be attached to an existing double floor structure without any additional work, so this embodiment can prevent fixtures from tipping over at low cost and with simple work.

[0073] <Installation of modified panel restricting members> As shown in the top and middle views of Figures 17 and 18, before installation, the upper locking portions 62A of the panel restricting member 60A are not bent relative to the insertion portions 61A and are arranged straight. Before laying the fixture fixed floor panel 53A, or after the fixture fixed floor panel 53A has been removed, the cutout portions 63a of the panel restricting member 60A are fitted into the support legs 71, and the lower locking portions 63 are fixed to the underside of the support base portion 72 with adhesive material 65 (see the top views of Figures 17 and 18). The pair of insertion portions 61A are adjacent to the adjacent floor panel 53B.

[0074] After the corner 53e of the fixture fixing floor panel 53A is placed on the support base 72 of the panel support body 70, the pressing member 74 is attached to the positioning member 73 (see the middle diagrams of Figures 17 and 18). The insertion portion 61A is located in the gap S, while the portion that constitutes the upper locking portion 62A protrudes upward from the top surfaces of the floor panels 53A and 53B.

[0075] The portion that constitutes the upper locking portion 62A is bent toward the fixture fixed floor panel 53A (see the lower drawings in Figures 17 and 18), thereby completing the installation work of the panel restricting member 60A.

[0076] When a force is applied in the direction that causes the fixture fixed floor panel 53A to rise, the lower locking portion 63A of the panel restricting member 60A comes into contact with the underside of the support base portion 72 (positioning member 73), and the upper locking portion 62A restricts the upward movement of the fixture fixed floor panel 53A. This allows the panel restricting member 60A to prevent the fixture fixed floor panel 53A from rising up. The panel restricting member 60A can prevent the fixture fixed floor panel 53A from rising up even if the panel support body 70 is configured without the retaining member 74.

[0077] <Outline of the second embodiment> Next, a second embodiment of the present invention will be described with reference to the drawings. The cabinet 1, the fall prevention device 6, the double-layered floor F, and other structures are the same as those in the above embodiment, so detailed description thereof will be omitted.

[0078] 19 and 20, this embodiment is a structure that prevents a cabinet 1 placed on a double floor having multiple floor panels 53 laid on a floor slab 51 (floor surface) via panel supports 70 from tipping over. An anchor member 11 (fixing device) for fixing the cabinet 1 to a fixture-fixed floor panel 53A selected from the multiple floor panels 53, and a panel connecting member 40 for preventing the fixture-fixed floor panel 53A from lifting up are provided. The panel support member 70 supports a corner 53e (also an edge 53a) of the floor panel 53 with a support base portion 72, while pressing the corner 53e downward with a pressing member 74.

[0079] As shown in Figure 19, cabinet 1 is placed on floor F, straddling two fixture fixed floor panels 53A. A panel connecting member 40 is provided for each fixture fixed floor panel 53A. Panel connecting member 40 is made of metal plate and has an insertion portion 41 that passes vertically through gap S between fixture fixed floor panel 53A and its adjacent floor panel 53B, an upper locking portion 42 that extends from the upper end of insertion portion 41 toward the top of fixture fixed floor panel 53A, and a lower locking portion 43 that extends from the lower end of insertion portion 41 toward the bottom of the adjacent floor panel 53B.

[0080] In this embodiment, even if the fixture fixed floor panel 53A attempts to lift when the floor F shakes due to an earthquake or the like, the lower locking portion 43 of the panel connecting member 40 hooks onto the underside of the adjacent floor panel 53B, and the upper locking portion 42 restricts the upward movement of the fixture fixed floor panel 53A. This prevents the fixture fixed floor panel 53A from lifting up, and prevents the cabinet 1 from tipping over. Furthermore, the panel connecting member 40 can be realized with a simple structure formed, for example, by bending sheet metal, and can be attached to an existing double floor structure without any additional work, making it possible to prevent the cabinet 1 from tipping over with low cost and simple work.

[0081] <Configuration of panel connecting members> As shown in Figures 19 and 20, the plate-shaped upper locking portion 42 of the panel connecting member 40 is generally rectangular in plan view, and its longitudinal dimension is set to a length extending from one side of the fixture fixed floor panel 53A to the opposite side. Plate-shaped insertion portions 41 hang down from both edges of the upper locking portion 42. The insertion portions 41 hang down from the upper locking portion 42 with dimensions slightly larger than the thickness of the floor panel 53. The insertion portions 41 are also set to a thickness that allows them to pass through the gap S between the floor panels 53A and 53B. In this embodiment, the panel connecting member 40 is formed with a substantially uniform thickness.

[0082] A plate-shaped lower locking portion 43 extends from the lower end of each insertion portion 41 in a direction away from the upper locking portion 42 in a plan view. A folded portion 44 extends upward from the tip of the lower locking portion 43.

[0083] 20, a large recess is formed in the underside of the floor panel 53, and a lower peripheral edge 53f is provided in a convex shape. The lower locking portion 43 extends from the insertion portion 41 with a dimension larger than the width of the lower peripheral edge 53f. The folded portion 44 located below the adjacent floor panel 53B extends into the interior from the underside of the adjacent floor panel 53B and is disposed opposite the inner wall of the lower peripheral edge 53f.

[0084] To install the panel connecting member 40, first remove the adjacent floor panel 53B, and then place the upper locking portion 42 of the panel connecting member 40 on the fixture fixed floor panel 53A. Then, by attaching the adjacent floor panel 53B, the panel connecting member 40 is held in place so that it cannot be removed. The anchor member 11 (an example of a fixing device) that secures the cabinet 1 to the fixture fixed floor panel 53A via the tip-over prevention device 6 is inserted through the screw insertion hole 91 of the tip-over prevention device 6 and pilot holes drilled in the floor finishing material 54, the upper locking portion 42, and the fixture fixed floor panel 53A.

[0085] When a force acts on the fixture fixed floor panel 53A in a direction that causes the upper locking portion 42 to lift up, the lower locking portion 43 of the panel connecting member 40 comes into contact with the underside (lower surface peripheral portion 53f) of the adjacent floor panel 53B, thereby dispersing the force applied to the retaining member 74 of the panel support body 70. This prevents the fixture fixed floor panel 53A from lifting up and damage to the retaining member 74. Furthermore, by having the folded portion 44 of the panel connecting member 40 catch on the lower surface peripheral portion 53f, the fixture fixed floor panel 53A can be more reliably prevented from lifting up.

[0086] <Modification of panel connecting member> In the panel connecting member 40A shown in Figures 21 and 22, the length of the upper locking portion 42A arranged on the fixture fixed floor panel 53A (the length in the direction perpendicular to the side to which the insertion portion 41 is connected) is shorter than the length of one side of the floor panel 53. In this embodiment, the length of the upper locking portion 42A is approximately one-fourth of the side of the floor panel 53. The insertion portion 41 is connected to one side of the upper locking portion 42A, and the opposite side to that side is arranged on the fixture fixed floor panel 53A. The configurations of the insertion portion 41, lower locking portion 43, and folded portion 44 are the same as those of the panel connecting member 40 in the above embodiment.

[0087] 21, in this embodiment, two panel connecting members 40A are provided for each of the two fixture fixing floor panels 53A to which the cabinet 1 is fixed. The four panel connecting members 40A are provided near the four corners of the cabinet 1. The panel connecting members 40A can be provided in the same manner as the panel connecting members 40 described above.

[0088] As shown in Figure 22, the base 4 of the cabinet 1 is disposed above the upper locking portion 42A. When a force acts in a direction that causes the fixture fixed floor panel 53A to lift up, the panel connecting member 40A functions in the same way as the panel connecting member 40, preventing the fixture fixed floor panel 53A from lifting up. Note that, by disposing the cabinet 1 (base 4) above the upper locking portion 42A, the upward movement of the upper locking portion 42A is restricted. This prevents the panel connecting member 40A from coming off the floor panels 53A, 53B when a force acts in a direction that causes the fixture fixed floor panel 53A to lift up.

[0089] <Outline of the third embodiment> Next, a third embodiment of the present invention will be described with reference to the drawings. The cabinet 1, the fall prevention device 6, the double-layered floor F, and other structures are the same as those of the above embodiment, so detailed description thereof will be omitted.

[0090] As shown in Figures 23 and 24, the fixture tip-over prevention structure of this embodiment includes fixing screws 10 (fixing devices) for fixing a cabinet 1 to a fixture-fixed floor panel 53A selected from a plurality of floor panels 53, and a panel under-member 90 for preventing the floor panel 53 from lifting up. The configuration of the panel support 70 is the same as in the above embodiment. The panel under-member 90 is positioned from below the fixture-fixed floor panel 53A to below the adjacent floor panel 53B. The fixing screws 10 pass through the fixture-fixed floor panel 53A and are connected to the panel under-member 90.

[0091] As shown in Figure 23, cabinet 1 is placed on floor F, straddling two fixture fixed floor panels 53A. A panel under-member 90 is provided for each fixture fixed floor panel 53A. The panel under-member 90 is made of metal plate and is provided extending from below the fixture fixed floor panel 53A to below the pair of adjacent floor panels 53B that sandwich the fixture fixed floor panel 53A.

[0092] According to the third aspect of the present invention, even if the fixture-fixed floor panel 53A attempts to lift when the floor F shakes due to an earthquake or the like, the panel lower member 90 connected to the fixture-fixed floor panel 53A hooks onto the back surface of the adjacent floor panel 53B, preventing the fixture-fixed floor panel 53A from lifting and preventing the cabinet 1 from tipping over. Furthermore, the panel lower member 90 can be realized with a simple structure formed, for example, from a metal pipe or a bent metal plate, and can be attached to an existing double floor structure without any additional work. Therefore, this embodiment can prevent the cabinet 1 from tipping over at low cost and with simple work.

[0093] <Configuration of the panel bottom part> 23 and 24, the lower member body 92 of the panel lower member 90 is formed from a channel steel (C-beam) with a downward opening, and is configured so that its height can be adjusted with a pair of adjuster bolts 93. The lower member body 92 has an upper surface portion 94 extending in the longitudinal direction of the C-beam, a pair of side surfaces 95 hanging down from both side edges of the upper surface portion 94, and a pair of lower surface portions 96 extending inward from the lower end portions of each side surface portion 95.

[0094] An adjuster bolt 93 is screwed from below into a portion near one longitudinal end of one undersurface portion 96 and a portion near the other longitudinal end of the other undersurface portion 96. The height position of the lower member main body 92 can be adjusted by the degree to which the adjuster bolt 93 is screwed into the undersurface portion 96.

[0095] The length of the lower member body 92 is longer than one side of the fixture fixed floor panel 53A. When the lower member body 92 is disposed below the fixture fixed floor panel 53A, both longitudinal ends of the lower member body 92 are positioned below the pair of adjacent floor panels 53B that sandwich the fixture fixed floor panel 53A.

[0096] To install the panel lower member 90, first remove the fixture fixed floor panel 53A and place the panel lower member 90 on the floor slab 51 with the adjuster bolts 93 facing downward. Both longitudinal ends of the panel lower member 90 are placed below the adjacent floor panel 53B. The height position of the lower member body 92 is adjusted with the adjuster bolts 93 so that the upper surface portion 94 is close to the underside of the adjacent floor panel 53B. When the fixture fixed floor panel 53A is attached, the upper surface portion 94 of the panel lower member 90 is placed close to the underside of the fixture fixed floor panel 53A.

[0097] After laying the floor finishing material 54, the base 4 of the cabinet 1 is placed on the fixture fixed floor panel 53A. The fixing screws 10 are screwed from above through the screw insertion holes 91 of the anti-tip device 6, passing through the floor finishing material 54 and the fixture fixed floor panel 53A, and into the upper surface 94 of the panel lower member 90. The fixing screws 10 connect the cabinet 1 (anti-tip device 6) to the fixture fixed floor panel 53A and the panel lower member 90.

[0098] When a force acts on the fixture fixed floor panel 53A in a direction that causes it to lift up, the portion of the panel lower member 90 near the end of the lower member main body 92 located below the adjacent floor panel 53B comes into contact with the underside of the adjacent floor panel 53B. This distributes the force acting on the pressing member 74 of the panel support body 70, preventing the fixture fixed floor panel 53A from lifting up and the pressing member 74 from being damaged.

[0099] <Modification of the panel lower member> 25 and 26 has a generally U-shaped cross section and includes a generally rectangular upper surface portion 94A, a pair of side surfaces 95A hanging down from both side edges of the upper surface portion 94A, and a pair of legs 93A extending downward from the lower end of the side surface portion 95A. The pair of legs 93A are spaced apart in the longitudinal direction of the upper surface portion 94A and the side surface portions 95A, and are provided for each pair of side surfaces 95A.

[0100] The panel lower member 90A is configured with four legs 93A so that it can stand on its own on the floor slab 51. In the panel lower member 90A disposed on the floor slab 51, an upper surface portion 94A is disposed at a distance from the floor slab 51.

[0101] 25, in this embodiment, a panel under-member 90A is provided for each of the two furniture fixing floor panels 53A to which the cabinet 1 is fixed. The length of the panel under-member 90A is set to be longer than one side of the furniture fixing floor panels 53A.

[0102] To install the panel lower member 90A, first remove the fixture fixed floor panel 53A and place the panel lower member 90A on the floor slab 51 with the legs 93A facing downward. Both longitudinal ends of the panel lower member 90A are placed below the adjacent floor panel 53B. Then, the fixture fixed floor panel 53A is attached. As shown in Figure 26(A), the upper surface 94A of the panel lower member 90A is spaced apart from the undersides of the floor panels 53A and 53B.

[0103] After laying the floor finishing material 54, the base 4 of the cabinet 1 is placed on the fixture fixed floor panel 53A. The fixing screws 10 are screwed from above through the screw insertion holes 91 of the anti-tip device 6, penetrating the floor finishing material 54 and the fixture fixed floor panel 53A, and into the upper surface portion 94A of the panel lower member 90A. As the fixing screws 10 continue to be screwed into the upper surface portion 94A, the panel lower member 90A rises and is pulled toward the floor panels 53A and 53B, until the upper surface portion 94A comes into contact with the underside of the fixture fixed floor panel 53A. In this way, the fixing screws 10 connect the cabinet 1 to the fixture fixed floor panel 53A and the panel lower member 90A via the anti-tip device 6.

[0104] As with the panel lower member 90 in the above embodiment, when a force acts in the direction of lifting the fixture fixed floor panel 53A, a portion of the panel lower member 90A near the edge comes into contact with the underside of the adjacent floor panel 53B. This distributes the force acting on the retaining member 74 of the panel support body 70, preventing the fixture fixed floor panel 53A from lifting up and the retaining member 74 from being damaged.

[0105] <Other> Although the present invention has been described above with reference to the drawings, it is not limited to the above-described embodiment and can be embodied in various forms. The configuration of each part is not limited to the illustrated embodiment, and various modifications are possible without departing from the spirit of the present invention. For example, the configurations described in the above-described embodiment and modified examples (notes, etc.) may be combined, and additions, omissions, substitutions, and other modifications of the configurations are possible.

[0106] Furthermore, the applicable fixtures are not limited to cabinets, and as mentioned in the technical field section, they can also include electrical and electronic equipment, vending machines, refrigerators, and product display shelves. In the above embodiment, the cabinet 1 is connected to the floor F (fixture-fixed floor panel 53A) via the anti-tip device 6, but the fixtures may also be directly connected to the fixture-fixed floor panel 53A. For example, the base 4 may be fixed to the fixture-fixed floor panel 53A with fasteners such as screws.

[0107] Furthermore, although the base 7 of the anti-tip device 6 has a flat plate-like shape, it is also possible to give the base 7 the desired rigidity (resistance to deformation), for example, by adding bending processing to the base 7 or by forming the base 7 into a corrugated plate shape.

[0108] In the fixture anti-tip device 6, the fixing portion 9 has a screw insertion hole 91 through which the shank (fixing device) of the fixing screw 10 that is screwed into the floor F (fixture fixed floor panel 53A) from above can be inserted. According to this embodiment, the anti-tip device 6 can be reliably and easily fixed to the floor F by the simple task of inserting the fixing device into the screw insertion hole 91 of the anti-tip device 6 from above and connecting it to the floor F.

[0109] Furthermore, the fixing portion 9 is provided with a plurality of screw insertion holes 91. According to this embodiment, when the anti-toppling device 6 is placed at a desired position on the floor F, the options for the insertion position of the fastener that connects the anti-toppling device 6 to the floor F are increased. For example, even if a member (e.g., rebar material inside the floor) that makes it difficult to insert a fastener is present below one of the screw insertion holes 91 of the anti-toppling device 6 placed at a desired position, the anti-toppling device 6 can be fixed to the floor F using another screw insertion hole 91 without changing its position. This allows the anti-toppling device 6 to be fixed to the floor F at a desired position even when the insertion position of the fastener on the floor F is limited, thereby improving the flexibility of the layout of the fixture to which the anti-toppling device 6 is connected. Furthermore, it is also possible to firmly fix the anti-toppling device 6 to the floor F (furniture fixing floor panel 53A) at multiple locations using a plurality of fasteners (e.g., fixing screws 10 and anchor members 11).

[0110] In the fixture tip-over prevention device 6, the plate has a plate-shaped base 7 that contacts the floor surface, and the connecting portion 8 is formed by bending the plate and has an upright portion 81 that extends upward from the end of the base 7, a flange portion 82 that extends outward from the upper end of the upright portion 81 from the top of the upright portion 81, and engagement holes 83 that open up and down in the flange portion 82. The connecting portion 8 and the fixture can be connected by inserting the shank of a connecting screw (adjuster member 23) that is attached upward to the bottom of the fixture through the engagement hole 83. According to this embodiment, the fixture tip-over prevention device 6 can be formed with a simple structure formed by bending and drilling the plate. This makes it possible to realize a tip-over prevention device 6 that is low-cost and easy to attach to fixtures.

[0111] Furthermore, the connecting screw may be configured as a screw-in type adjuster member 23 provided at the bottom of the fixture. According to this embodiment, the screw-in type adjuster member 23 can connect the fixture and the tip-over prevention device with a low-cost and simple configuration without using a dedicated connecting screw.

[0112] The fixture base unit comprises a base 4 on which the fixture body rests, and a fixture anti-tip device 6 attached to the bottom of the base 4. The fixture anti-tip device 6 comprises an elastic plate placed on the floor F below the base 4, and the plate includes a plurality of connecting parts 8 that are connected to the fixture, and fixing parts 9 that are fixed to the floor F at positions between the plurality of connecting parts 8 in a plan view. The fixture is equipped with the fixture anti-tip device 6 or the above-mentioned fixture base unit.

[0113] The above-mentioned fixture base unit and fixture are provided with the configuration of a fixture tip-over prevention device 6, and therefore it is possible to provide a fixture base unit and fixture that has a simple structure, is easy to install, and has a tip-over prevention function that is highly practical and versatile. [Industrial Applicability]

[0114] The present invention can be embodied in an anti-tip device for furniture and fixtures, and is therefore industrially applicable. [Explanation of symbols]

[0115] 1. Cabinet (an example of furniture) 6. Fixture tip-over prevention devices 7 base 8 Connecting part 9 Fixed part 10 Fixing screw (an example of a fixing device) 11 Anchor member (an example of a fixing device) 40 Panel connecting member 40A Panel connecting member 41 Insertion part 42 Upper locking part 42A Upper locking part 43 Lower locking part 44 Turned part 51 Floor slab (an example of a floor surface) 53 Fixture fixed floor panel 53A Fixture fixed floor panel 53a Edge 53e Corner 53B Adjacent floor panel 60 Panel control member 60A Panel Restriction Member 61 Insertion part 61A Insertion part 62 Upper locking part 62A Upper locking part 63 Lower locking part 63a Notch 63A Lower locking part 64 Tilt suppression part 65 Adhesive material 70 Panel support 70A Intermediate Panel Support 71 Support leg 71a Flange 72 Support base 74 Retaining member 90 Panel bottom member 90A Panel bottom member 92 Lower member body 93 Adjuster bolt 93A Legs 94 Top part 94A Top part 95 Side profile 95A Side Profile 96 Lower part F bed S gap

Claims

1. A structure for preventing furniture placed on a double floor having a plurality of floor panels laid on a floor surface via panel supports from tipping over, a fixture for fixing the fixture to a fixture fixing floor panel selected from the plurality of floor panels; A panel regulating member for preventing the fixture fixed floor panel from lifting up, The panel support has a support base portion that projects laterally from the upper portion of the support leg that stands on the floor surface and supports the edge portion of the floor panel, The panel regulating member has an insertion portion that passes vertically through the gap between the fixture fixed floor panel and the adjacent floor panel, an upper locking portion that extends from the upper end of the insertion portion toward the top of the fixture fixed floor panel, and a lower locking portion that extends from the lower end of the insertion portion toward the bottom of the support base portion. Structure to prevent fixtures from tipping over.

2. A structure for preventing furniture placed on a double floor having a plurality of floor panels laid on a floor surface via panel supports from tipping over, a fixture for fixing the fixture to a fixture fixing floor panel selected from the plurality of floor panels; and a panel connecting member for preventing the fixture fixed floor panel from lifting up, The panel support body is configured to support an edge of the floor panel with a support base portion and to press the edge downward with a pressing member, The panel connecting member has an insertion portion that passes vertically through the gap between the fixture fixed floor panel and the adjacent floor panel, an upper locking portion that extends from the upper end of the insertion portion toward the top of the fixture fixed floor panel, and a lower locking portion that extends from the lower end of the insertion portion toward the bottom of the adjacent floor panel. Structure to prevent fixtures from tipping over.

3. A structure for preventing furniture placed on a double floor having a plurality of floor panels laid on a floor surface via panel supports from tipping over, a fixture for fixing the fixture to a fixture fixing floor panel selected from the plurality of floor panels; a panel lower member for preventing the floor panel from lifting up, The panel support body is configured to support an edge of the floor panel with a support base portion and to press the edge downward with a pressing member, The panel lower member is disposed from under the fixture fixed floor panel to under the adjacent floor panel, The fixture penetrates the fixture fixing floor panel and is connected to the panel lower member, The panel lower member is not bolted to the floor surface. Structure to prevent fixtures from tipping over.

4. A fixture tip-over prevention device is provided between the fixture and the fixing device, The fixture tip-over prevention device is a resilient plate disposed on the fixture fixed floor panel below the fixture; The plate includes a plurality of connecting portions that are connected to the fixtures, and a fixing portion that is fixed to the floor panel at a position between the plurality of connecting portions in a plan view, The fixing portion is fixed to the fixture fixing floor panel by the fixing device. A structure for preventing fixtures from tipping over as claimed in any one of claims 1 to 3.

5. A fixture tip-over prevention structure that prevents fixtures placed on a double floor having a plurality of floor panels laid on the floor surface via panel supports from tipping over, wherein the fixtures are fixed to a fixture fixed floor panel selected from the plurality of floor panels by fixing devices, and the panel support has a support base portion that extends sideways from the top of a support leg erected on the floor surface and supports the edge of the floor panel, and is a panel regulating member for preventing the fixture fixed floor panel from lifting up, used in the fixture tip-over prevention structure, The fixture fixing panel has an insertion portion that passes vertically through the gap between the fixture fixing floor panel and the adjacent floor panel, an upper locking portion that extends from the upper end of the insertion portion toward the top of the fixture fixing floor panel, and a lower locking portion that extends from the lower end of the insertion portion toward the bottom of the support base portion. Panel control components used in fixtures to prevent them from tipping over.

6. A fixture tip-over prevention structure that prevents fixtures placed on a double floor having a plurality of floor panels laid on the floor surface via panel supports from tipping over, wherein the fixtures are fixed to a fixture fixed floor panel selected from the plurality of floor panels by fixing devices, and the panel support has a configuration in which the edge of the floor panel is supported by a support base portion while the edge is pressed downward by a pressing member, and is a panel connecting member for preventing the fixture fixed floor panel from lifting up, used in the fixture tip-over prevention structure, The fixture fixing panel has an insertion portion that passes vertically through the gap between the fixture fixing floor panel and the adjacent floor panel, an upper locking portion that extends from the upper end of the insertion portion toward the top of the fixture fixing floor panel, and a lower locking portion that extends from the lower end of the insertion portion toward the bottom of the adjacent floor panel. Panel connecting member used in fixtures to prevent them from tipping over.

7. A fixture tip-over prevention structure that prevents fixtures placed on a double floor having a plurality of floor panels laid on the floor surface via panel supports from tipping over, wherein the fixtures are fixed to a fixture fixed floor panel selected from the plurality of floor panels by a fixing device, the panel support has a configuration in which the edge of the floor panel is supported by a support base portion while the edge is pressed downward by a pressing member, and the fixing device is a panel under-member for preventing the floor panel from lifting up, used in the fixture tip-over prevention structure that penetrates the fixture fixed floor panel, The fixture is arranged from under the fixture fixed floor panel to under the adjacent floor panel, and is connected to the fixture but is not bolted to the floor surface. Panel bottom component used in fixtures to prevent them from tipping over.

Images