Display fixture with tabletop

Abstract

To provide a fixture with a top that ensures the mobility of the fixture when it is desired to move the fixture in a specific direction. [Solution] The fixture with a top plate 1 comprises one upright portion 3 extending in the vertical direction Dv, a top plate 4 which is a plate-like shape formed in a rectangular shape in a plan view when viewed from above and below, and is supported from below by the upright portion, four leg rods 5 which extend from the lower end of the upright portion toward the four corners 43 of the top plate in a plan view, and four ground contact portions 6 which are provided at the ends of the four leg rods in the direction of extension and come into contact with the floor surface. Two of the four ground contact portions, which are aligned along one predetermined side 41A of the top plate, are rolling portions 6A which have wheels 61 that roll only in a direction perpendicular to the predetermined side in a plan view.

Description

Technical Field

[0006] , ,

[0001] The present invention relates to a furniture with a top plate.

Background Art

[0002] Patent Document 1 discloses a furniture with a top plate including one support column portion extending in the vertical direction, a top plate supported from below by the support column portion, and legs connected to the lower end portion of the support column portion and disposed on the floor surface. In this type of furniture with a top plate, since the number of support column portions disposed below the top plate is smaller compared to the case where there are a plurality of support column portions, even if a user puts their own foot under the top plate, it is possible to suppress the interference of the user's own foot with the support column portion.

[0003] The legs of the furniture with a top plate of Patent Document 1 include a plurality of leg rod portions (leg frames) extending in different directions from the lower end portion of the support column portion along the floor surface, and a rolling portion (caster) provided at the tip end portion of the leg rod portion and having a wheel that rolls on the floor surface. The rolling portion provided in the furniture with a top plate of Patent Document 1 is rotatably attached around an axis extending in the vertical direction with respect to the leg rod portion. Therefore, the direction in which the wheel of the rolling portion rolls on the floor surface changes.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] However, in the furniture with a top plate of Patent Document 1, since the direction in which the wheel of the rolling portion rolls on the floor surface changes, it is difficult for the user to stably move the furniture with a top plate in a specific direction while gripping the edge of the top plate. That is, the mobility of the furniture with a top plate when it is desired to move the furniture with a top plate in a specific direction is impaired.

[0006] The present invention has been made in view of the above circumstances, and aims to provide a fixture with a top that can ensure the mobility of the fixture when it is desired to move the fixture in a specific direction. [Means for solving the problem]

[0007] (1) Embodiment 1 of the fixture with a top plate according to the present invention comprises an upright portion extending in the vertical direction, a top plate which is in the shape of a rectangular plate when viewed from the vertical direction and is supported from below by the upright portion, four leg rods which extend from the lower end of the upright portion toward the four corners of the top plate in the view from the vertical direction, and four ground contact portions which are provided at the ends of the four leg rods in the direction of extension and come into contact with the floor surface, wherein at least two of the four ground contact portions which are aligned along one predetermined side of the top plate are rolling portions which have wheels that roll only in a direction perpendicular to the predetermined side in the view from the vertical direction.

[0008] In the fixture with a top plate according to Embodiment 1, the wheels of the two rolling parts, which are arranged along a predetermined edge of the top plate, roll only in a direction perpendicular to the predetermined edge. That is, the direction of rotation of the wheels of the two rolling parts is limited to a direction perpendicular to the predetermined edge. Therefore, the user of the fixture with a top plate can easily move the fixture along the floor in a direction perpendicular to the predetermined edge while holding the portion of the top plate along the predetermined edge, that is, the fixture with a top plate can be stably moved in a specific direction. Thus, the mobility of the fixture with a top plate can be ensured when it is desired to move the fixture in a specific direction.

[0009] (2) Embodiment 2 of the fixture with a tabletop according to the present invention is that in Embodiment 1, the upright portion is located in the center of the tabletop in the plan view, and the four leg rods may each extend in a straight line from the lower end of the upright portion toward the four corners of the tabletop in the plan view.

[0010] In a fixture with a tabletop configured in this way, even if the user places their feet under the tabletop from any of the four sides, interference between the user's feet and the upright and leg sections can be more effectively suppressed or prevented. Therefore, the user can use the fixture with a tabletop more comfortably.

[0011] (3) Embodiment 3 of the fixture with a top plate according to the present invention is, in Embodiment 2, the direction of rotation of the wheel that rolls in a direction perpendicular to the predetermined side in the plan view may be in a direction along a virtual line that bisects the interior angle between the first leg rod and the second leg rod, of which two of the four leg rods are provided with the rolling parts.

[0012] In a fixture with a tabletop configured in this way, the direction of rotation of the wheels does not tilt toward the first leg rod or the second leg rod relative to the imaginary line when viewed from above. Therefore, compared to the case where it tilts, the fixture with a tabletop can be easily moved in a specific direction.

[0013] (4) Embodiment 4 of the fixture with a tabletop according to the present invention is an embodiment in which, in any of embodiments 1 to 3, the leg rod portion may be formed in a shape that becomes thinner towards the tip portion in the extension direction of the leg rod portion.

[0014] In a fixture with a tabletop constructed in this way, the leg rods appear slimmer compared to a case where the entire leg rod section is formed with the same thickness, thus providing a fixture with a tabletop that has a good appearance.

[0015] (5) Embodiment 5 of the fixture with a top plate according to the present invention, in any of Embodiments 1 to 4, the leg rod portion has a pair of sides facing opposite directions in the width direction perpendicular to the extension direction of the leg rod portion and the vertical direction, and at least one of the pair of sides is inclined to approach the other side of the leg rod portion as it moves from the upper end to the lower end of the leg rod portion.

[0016] In a display unit with a tabletop constructed in this way, when the leg section is viewed from an oblique angle above, the sloping sides of the leg section become less visible or appear smaller. As a result, the leg section appears thinner than its actual thickness. In other words, the leg section appears slimmer, making it possible to provide a display unit with a tabletop that has a good appearance.

[0017] (6) In any of embodiments 1 to 5 of the fixture with a top plate according to the present invention, the other two ground contact parts may be adjusters having contact surfaces that make surface contact with the floor surface.

[0018] In a fixture with a top plate configured in this way, when the adjuster is in contact with the floor surface, it is possible to prevent the fixture from unexpectedly moving along the floor surface due to frictional force between the floor surface and the contact surface. In order to move the fixture with a top plate on the floor surface using the wheels of the rolling part, one can grasp a predetermined side of the top plate and lift it, thereby moving the adjuster upward from the floor surface.

[0019] (7) In any of embodiments 1 to 6, the upright portion of the fixture with a top plate according to the present invention may be a single support column extending in the vertical direction.

[0020] In this type of fixture with a tabletop, even if the user places their feet under the tabletop, interference between the user's feet and the support columns can be effectively prevented. Therefore, the user can use the fixture with a tabletop comfortably. [Effects of the Invention]

[0021] According to the present invention, it is possible to ensure the mobility of a fixture with a top plate when it is desired to move the fixture in a specific direction. [Brief explanation of the drawing]

[0022] [Figure 1] This is a perspective view of the fixture with a tabletop according to this embodiment, as seen from the top surface of the tabletop. [Figure 2] This is a perspective view of the above-mentioned fixture with a tabletop, seen from the underside of the tabletop. [Figure 3] The following is a bottom view of the furniture with the top plate as seen from below. [Figure 4] In the furniture with the top plate, the following is a bottom view of the accommodation hole formed at the tip of the leg rod portion and the rolling portion accommodated in the accommodation hole as seen from below. [Figure 5] It is a cross-sectional view taken along the line V-V of FIG. 4. [Figure 6] In the furniture with the top plate, the following is a perspective view of the state where the rolling portion is removed from the accommodation hole of the leg rod portion as seen from below. [Figure 7] In the furniture with the top plate, the following is a cross-sectional view of the leg rod portion perpendicular to the extending direction of the leg rod portion. [Figure 8] In the furniture with the top plate, the following is a bottom view of the accommodation hole of the leg rod portion as seen from below. [Figure 9] In the furniture with the top plate, the following is a perspective view showing the rolling portion. [Figure 10] In the furniture with the top plate, the following is a top view of the rolling portion as seen from above. <----

Embodiments for Carrying out the Invention

[0023] Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings. As shown in FIG. 1, the furniture 1 with the top plate is, for example, a desk and is placed on the floor surface F. As shown in FIGS. 1 and 2, the furniture with the top plate 1 includes a standing portion 3, one top plate 4, four leg rod portions 5, and four grounding portions 6. Further, the furniture 1 with the top plate of the present embodiment includes a regulating means 7 (see FIG. 5). The standing portion 3, the top plate 4, and the leg rod portion 5 constitute the furniture main body 2. In the present embodiment, the top plate 4 is formed in a square shape in a plan view as seen from the thickness direction.

[0024] In the following description, the direction perpendicular to the floor surface F is defined as the vertical direction Dv, the direction in which the first opposite side 41 of the four sides 41, 42 of the top plate 4 are aligned within the plane perpendicular to the vertical direction Dv is defined as the front-to-back direction Da, and the direction in which the second opposite side 42 of the four sides 41, 42 of the top plate 4 are aligned is defined as the width direction Dw. In this embodiment, since the plan view shape of the top plate 4 is rectangular, the front-to-back direction Da and the width direction Dw are perpendicular to each other.

[0025] The upright portion 3 extends in the vertical direction Dv. In this embodiment, the upright portion 3 is a single support column 31 that extends in the vertical direction Dv. The tabletop 4 is formed in a plate shape with the vertical direction Dv as the thickness direction. The tabletop 4 has an upper surface 4a facing upward in the vertical direction Dv and a lower surface 4b facing downward in the vertical direction Dv (facing the opposite side of the upper surface 4a). The upper surface 4a of the tabletop 4 functions as a work surface for the user. The tabletop 4 is connected to the upper end of the support column 31 and supported from below by the support column 31. That is, the upper end of the support column 31 is connected to the lower surface 4b of the tabletop 4. Specifically, the upper end of the support column 31 is provided with a receiving seat 32 that is larger than the support column 31 when viewed from the vertical direction Dv and receives the tabletop 4. This receiving seat 32 is connected to the lower surface 4b of the tabletop 4. This allows the tabletop 4 to be stably supported. In this embodiment, the support column 31 is located in the center of the tabletop 4 in a plan view when viewed from the vertical direction Dv. Note that the support column 31 may be located offset from the center of the tabletop 4, for example. However, it is more preferable that the support column 31 be positioned at a distance from the corner 43 of the top plate 4.

[0026] As shown in Figure 3, the four leg rods 5 extend from the lower end of the support column 31 toward the four corners 43 of the top plate 4 in a plan view. The four leg rods 5 each extend in a direction intersecting the vertical direction Dv. The corners 43 of the top plate 4 are the vertices where the ends of adjacent sides 41 and 42 of the top plate 4 meet in a plan view. In the following description, the direction in which the leg rods 5 extend from the lower end of the support column 31 will be referred to as the "extension direction Dll of the leg rods 5", and the direction of the leg rods 5 perpendicular to the extension direction Dll and the vertical direction Dv will be referred to as the "width direction Dlw of the leg rods 5".

[0027] The tip of each leg rod 5 in the extension direction Dll is positioned in a plan view corresponding to the corner 43 of the tabletop 4. The tips of multiple leg rods 5 in the extension direction Dll are located below different corners 43 of the tabletop 4, and not below the same corner 43. Furthermore, in the plan view shown in Figure 3, it is preferable that the extension direction Dll of each of the multiple leg rods 5 is set such that a first imaginary line VL1 extending in the extension direction Dll of the leg rod 5 at the center of the leg rod 5 in the width direction Dlw of the leg rod 5 passes through the corner 43 of the tabletop 4. It is also preferable that the extension direction Dll of the leg rod 5 is set such that the first imaginary line VL1 bisects the angle of the corner 43 of the tabletop 4 (the angle formed by two adjacent sides 41 and 42 of the tabletop 4).

[0028] In Figure 3, the tip of the leg rod 5 is located below the inner vicinity of the corners 43 of the tabletop 4 in a plan view (corner vicinity region). The four corner vicinity regions corresponding to the four corners 43 are located apart from each other. The tip of the leg rod 5 may, for example, be located below the corners 43 of the tabletop 4. Alternatively, the tip of the leg rod 5 may be located near the corners 43 of the tabletop 4 in a plan view but outside the tabletop 4, however, it is more preferable that the leg rod 5 does not protrude outside the tabletop 4 in a plan view.

[0029] In this embodiment, the four leg rods 5 extend linearly from the lower end of the support column 31 toward the four corners 43 of the top plate 4 in a plan view. That is, the four leg rods 5 extend radially from the lower end of the support column 31. In this embodiment, since the top plate 4 is formed as a square in a plan view, the four leg rods 5 are arranged at equal intervals in the circumferential direction around the support column 31, with the support column 31 as the center. In other words, the tips of the four leg rods 5 are positioned on the circumference of a virtual circle centered on the axis of the support column 31. For this reason, the four leg rods 5 are formed in an X shape in a plan view. Also, the lengths of the four leg rods 5 are equal to each other.

[0030] As shown in Figure 1, in this embodiment, each leg rod 5 inclins downward as it extends from the lower end of the support column 31 in a direction perpendicular to the vertical direction Dv. Therefore, the tip of each leg rod 5 is located below the base end of the leg rod 5. The length of the leg rod 5 extending downward is sufficiently small compared to the length of the leg rod 5 extending in a direction perpendicular to the vertical direction Dv. That is, the inclination angle of the leg rod 5 with respect to the plane perpendicular to the vertical direction Dv is small.

[0031] As shown in Figure 3, each leg rod portion 5 is formed in a shape that tapers towards the tip in the extension direction Dll of the leg rod portion 5 when viewed from above.

[0032] As shown in Figure 7, each leg rod 5 has a pair of side surfaces 51 that face opposite each other in the width direction Dlw of the leg rod 5, which is perpendicular to the extension direction Dll and the vertical direction Dv of the leg rod 5. In Figure 7, the extension direction Dll of the leg rod 5 is generally perpendicular to the plane of the paper, and the width direction Dlw of the leg rod 5 is the left-right direction. The pair of side surfaces 51 of the leg rod 5 are inclined in the cross-section shown in Figure 7 so as you move from the upper end to the lower end of the leg rod 5, they approach the opposite side surface 51 of the leg rod 5. In other words, the width dimension of the leg rod 5 decreases as you move from the upper end to the lower end of the leg rod 5.

[0033] As shown in Figure 1, the four contact points 6 are each provided on the underside of the tip of the four leg rods 5 in the extension direction Dll and contact the floor surface F. These four contact points 6 are positioned in a plan view corresponding to the four corners 43 of the top plate 4 (see Figure 3). This prevents or suppresses tilting or tipping of the fixture with a top plate 1 even when a load is applied to one corner 43 of the top plate 4 from the upper surface 4a side of the top plate 4 while the fixture with a top plate 1 is placed on the floor surface F.

[0034] As shown in Figures 1 to 3, of the four contact points 6, two are rolling parts 6A, and the other two are adjusters 6B. The two rolling parts 6A and the two adjusters 6B are aligned in the longitudinal direction Da. In the following explanation, the side of the longitudinal direction Da where the two rolling parts 6A are located will be referred to as the "front," and the side of the longitudinal direction Da where the two adjusters 6B are located will be referred to as the "rear."

[0035] The two rolling parts 6A are aligned along one predetermined side 41A of the top plate 4. In this embodiment, the predetermined side 41A of the top plate 4 is the side located at the rear of the first pair of opposite sides 41 of the top plate 4 that are aligned in the front-rear direction Da. Each rolling part 6A has a wheel 61 that contacts the floor surface F and rolls only in a direction perpendicular to the predetermined side 41A in a plan view. That is, the wheel 61 of each rolling part 6A rolls in the front-rear direction Da. The rolling of the wheels 61 of these two rolling parts 6A on the floor surface F allows the top plate fixture 1 to be moved in the front-rear direction Da. The two rolling parts 6A are provided on the underside of the tips of the two front-facing rod parts 5 (first rod part 5A and second rod part 5B). As shown in Figure 3, the direction of rotation of the wheel 61, which rolls in the longitudinal direction Da, is along the second imaginary line VL2 (imaginary line) that bisects the interior angle θ formed by the first rod part 5A and the second rod part 5B, on which the two rolling parts 6A are provided, in a plan view. The specific structure of the rolling part 6A and the specific mounting structure of the rolling part 6A to the tip of the leg rod 5 will be described later.

[0036] As shown in Figures 2 and 3, the adjuster 6B has a contact surface 6B1 that faces downward and makes surface contact with the floor surface F. The two adjusters 6B are each provided on the underside of the tips of the two rear-facing leg rods 5. The two adjusters 6B can each adjust the height of the leg rod 5 to which the adjuster 6B is attached, with respect to the floor surface F. This allows all four contact points 6 to simultaneously make contact with the floor surface F, even if the floor surface F has some unevenness. In other words, the furniture with a top plate 1 can be stably placed on the floor surface F.

[0037] The specific structure of the rolling part 6A will be described below. As shown in Figures 5, 6, and 9, the rolling part 6A of this embodiment has a support 62 in addition to the wheel 61. The support 62 pivotally supports the wheel 61 so that it can rotate around a rotation axis RA that intersects the vertical direction Dv. The support 62 also supports the wheel 61 so that it cannot rotate around an axis extending in the vertical direction Dv. In this embodiment, the rotation axis RA of the wheel 61 extends in the width direction Dw. Also, as shown in Figures 4 and 9, the length dimension of the wheel 61 in the rolling direction (front-rear direction Da) (i.e., the diameter dimension of the wheel 61) is greater than the width dimension of the wheel 61 in the direction along the rotation axis RA (width direction Dw). Note that the dimensions of the wheel 61 are not limited to these.

[0038] As shown in Figures 5 and 9, the support 62 has a pair of side walls 65 and a top wall 66. The top wall portion 66 is located above the wheel 61 and is connected to a pair of side wall portions 65. The pair of side wall portions 65 are located on both sides of the wheel 61 in the direction along the rotation axis RA (width direction Dw). As a result, the support 62 has a housing space HS that surrounds the wheel 61 with the pair of side wall portions 65 and the top wall portion 66. This housing space HS opens downward, and a portion of the wheel 61 protrudes downward from the housing space HS. A pair of side wall sections 65 are fitted with shaft members 63 that rotatably support the wheels 61. The portion of the side wall section 65 on which the shaft members 63 are fitted (the fitted portion 651 of the side wall section 65) is located at the lower end of the side wall section 65.

[0039] Each of the pair of side wall sections 65 has an extended wall section 67. The extended wall section 67 extends outward from the support 62 in a direction along the rotation axis RA (width direction Dw) from a portion of the side wall section 65 that is above the mounting portion 651 and below the top wall section 66.

[0040] As shown in Figures 6 and 9, the support 62 of this embodiment has a peripheral wall portion 68 that surrounds the wheel 61 in a plan view. Part of the peripheral wall portion 68 is made up of the pair of side wall portions 65 described above. The top wall portion 66 described above is connected to the upper side of the peripheral wall portion 68. Therefore, the housing space HS in the support 62 in which the wheel 61 (or part thereof) is housed opens only downwards. Furthermore, as shown in Figure 10, the support 62 of this embodiment is formed in a circular shape when viewed from above.

[0041] The following describes the specific mounting structure of the rolling part 6A to the leg rod 5. As shown in Figures 5, 6, and 8, the leg rod portion 5 on which the rolling portion 6A is provided has a housing hole 53 that is recessed upward from the lower end of the tip of the leg rod portion 5. The housing hole 53 is a bottomed hole with a bottom surface 53a facing downward. In this embodiment, the bottom surface 53a is formed flat and is perpendicular to the vertical direction Dv. The housing hole 53 in this embodiment is formed in a circular shape in plan view, similar to the support 62 described above. The size of the circle of the housing hole 53 is set to be the same as (or slightly larger than) the size of the circle of the support 62. As shown in Figures 4 and 5, the support 62 is housed in the housing hole 53. In this embodiment, the portion of the support 62 excluding the lower portion of the support 62 on which the shaft member 63 is mounted is housed in the housing hole 53. However, the manner in which the support 62 is housed in the housing hole 53 is not particularly limited, as long as the depth to which the housing hole 53 recesses upward is such that the contact surface of the wheel 61 that contacts the floor surface F is exposed downward from the housing hole 53, and the side surface 51 does not contact the floor surface F and hinder the rolling of the wheel 61. In addition, a part (upper part) of the wheel 61 is also housed in the housing hole 53.

[0042] As shown in Figures 5, 6, and 9, the support 62 of the rolling part 6A housed in the housing hole 53 has a top surface 62a facing upward and opposite the bottom surface 53a of the housing hole 53. The top surface 62a of the support 62 is formed by the top wall portion 66 described above. In this embodiment, the top surface 62a is formed to be flat, similar to the bottom surface 53a of the housing hole 53.

[0043] As shown in Figures 5 and 6, a surface joining member 8 is interposed between the bottom surface 53a of the aforementioned housing hole 53 and the top surface 62a of the support 62 to join these two surfaces. Preferably, the surface joining member 8 is compressible and deformable in the direction in which the bottom surface 53a and the top surface 62a are aligned (vertical direction Dv). Specific examples of the surface joining member 8 include, for example, double-sided tape, hook-and-loop fasteners, and adhesives. The top surface 62a of the support 62 housed in the housing hole 53 is joined to the bottom surface 53a of the housing hole 53 by the surface joining member 8, thereby fixing the rolling part 6A to the tip of the leg rod 5.

[0044] As shown in Figure 5, the restricting means 7 restricts the rolling part 6A from rotating around an axis extending in the vertical direction Dv relative to the housing hole 53 while the support 62 is housed in the housing hole 53 of the leg rod 5. The restricting means 7 has an engaging projection 71 and an engaging recess 72. The engaging projection 71 protrudes downward (to one side in the vertical direction Dv) from the inner surface of the housing hole 53, facing the outer surface of the support 62, when the support 62 is housed in the housing hole 53. The engaging recess 72 is recessed downward (to one side in the vertical direction Dv) from the outer surface of the support 62, facing the inner surface of the housing hole 53, when the support 62 is housed in the housing hole 53. The engaging recess 72 engages with the engaging projection 71 when the support 62 is housed in the housing hole 53.

[0045] As shown in Figures 5 and 8, the engaging projections 71 are arranged in pairs, spaced apart from each other in an intersecting direction that crosses the vertical direction Dv. Specifically, the engaging projections 71 are positioned at both ends of the bottom surface 53a (inner surface) of the housing hole 53 in the direction along the rotation axis RA (width direction Dw). The engaging projections 71 then protrude downward from the bottom surface 53a of the housing hole 53.

[0046] Each engaging projection 71 includes a flat first flat surface 71c. The first flat surface 71c of the engaging projection 71 is a flat surface that is perpendicular to the axis of rotation RA and extends in the vertical direction Dv and the front-rear direction Da. The first flat surfaces 71c of two engaging projections 71 face each other in the direction along the axis of rotation RA.

[0047] This flat first flat surface 71c can also be described as being formed on the inner surface of the housing hole 53 and oriented in a direction intersecting the vertical direction Dv. In this embodiment, the first flat surface 71c is formed on a part of the inner circumferential surface of the housing hole 53. Furthermore, the first flat surface 71c of the housing hole 53 is oriented along the rotation axis RA, which is one of the directions perpendicular to the vertical direction Dv.

[0048] As shown in Figures 5, 9, and 10, the engaging recesses 72, like the engaging protrusions 71, are arranged in pairs at intervals from each other in an intersecting direction that intersects the vertical direction Dv. Specifically, the engaging recesses 72 are located at both ends of the top surface 62a (inner surface) of the support 62 in the direction along the rotation axis RA (width direction Dw), and are recessed downward from the top surface 62a of the support 62. The lower end of the engaging recess 72 is defined by the upper surface of the extended wall portion 67 of the support 62 described above.

[0049] Each engaging recess 72 includes a flat second flat surface 72c. The second flat surface 72c of the engaging recess 72 is a flat surface perpendicular to the axis of rotation RA and extending in the vertical direction Dv and the front-rear direction Da. The second flat surfaces 72c of the two engaging recesses 72 face opposite each other in the direction along the axis of rotation RA. The second flat surface 72c of the engaging recess 72 faces the first flat surface 71c of the engaging projection 71 when the support 62 is housed in the housing hole 53 of the leg rod 5.

[0050] This flat second flat surface 72c can also be described as being formed on the outer surface of the support 62 and oriented in a direction intersecting the vertical direction Dv. In this embodiment, the second flat surface 72c is formed on a part of the outer circumferential surface of the peripheral wall portion 68 of the support 62. Furthermore, the second flat surface 72c of the support 62 is oriented along the rotation axis RA, which is one of the directions perpendicular to the vertical direction Dv.

[0051] In Figure 5, the first flat surface 71c of the opposing engaging projection 71 and the second flat surface 72c of the engaging recess 72 are spaced apart in the direction along the rotation axis RA. As a result, when a force is applied that attempts to rotate the support 62 around the axis extending vertically Dv relative to the housing hole 53 via the wheels 61 and axle member 63 due to steps or unevenness in the floor surface F, the first flat surface 71c of the opposing engaging projection 71 and the second flat surface 72c of the engaging recess 72 are displaced relative to each other in the direction along the rotation axis RA, or in a direction inclined in plan view with respect to the direction along the rotation axis RA, and come into contact. This contact between the first flat surface 71c of the engaging projection 71 and the second flat surface 72c of the engaging recess 72 restricts the rotation of the support 62 around the axis extending vertically Dv relative to the housing hole 53. For example, in the initial assembly state in which the support 62 is placed in the housing hole 53, the first flat surface 71c of the opposing engaging projection 71 and the second flat surface 72c of the engaging recess 72 may be in contact (surface contact).

[0052] Alternatively, for example, a rib may be formed on one of the first flat surface 71c of the engaging projection 71 and the second flat surface 72c of the engaging recess 72, and the rib may be brought into contact with the other of the first flat surface 71c of the engaging projection 71 and the second flat surface 72c of the engaging recess 72. Alternatively, for example, a rib may be formed on one of the outer circumferential surface of the peripheral wall portion 68 of the support 62 and the inner circumferential surface of the receiving hole 53 facing the outer circumferential surface of the peripheral wall portion 68, and the rib may be brought into contact with the other of the outer circumferential surface of the peripheral wall portion 68 and the inner circumferential surface of the receiving hole 53. With the support 62 housed in the housing hole 53, the support 62 can be fitted into the housing hole 53 by bringing a rib formed on one of the inner circumferential surfaces of the housing hole 53 and the outer circumferential surface of the peripheral wall portion 68 into contact with the other of the inner circumferential surface of the housing hole 53 and the outer circumferential surface of the peripheral wall portion 68. This prevents the rolling portion 6A, including the support 62, from falling out of the housing hole 53. It also reinforces the fixing of the rolling portion 6A to the tip of the leg rod portion 5.

[0053] In the fixture with a top plate 1 of this embodiment, configured as described above, the fixture with a top plate 1 can be moved only in the front-to-back direction Da by rolling the wheels 61 of the two rolling parts 6A on the floor surface F. In this embodiment, two of the four contact parts 6 of the fixture with a top plate 1 are adjusters 6B that make surface contact with the floor surface F. Therefore, when a user moves the fixture with a top plate 1 on the floor surface F, the user should grasp a portion of the top plate 4 along a predetermined side 41A and lift it, thereby separating the adjusters 6B upward from the floor surface F, and then push or pull the top plate 4 in the front-to-back direction Da (a direction perpendicular to the predetermined side 41A). This allows the fixture with a top plate 1 to be moved in the front-to-back direction Da.

[0054] As described above, in the fixture with a top plate 1 of this embodiment, the top plate 4 is formed in a rectangular shape in plan view, and the four leg rods 5 extend from the lower end of the upright portion 3 (support column portion 31) toward the four corners 43 of the top plate 4 in plan view. The wheels 61 of the two rolling parts 6A, which are provided at the ends of the two leg rods 5 in the extension direction Dll and are aligned along a predetermined side 41A of the top plate 4, roll only in a direction perpendicular to the predetermined side 41A (front-back direction Da) in plan view. In other words, the direction of rotation of the wheels 61 of the two rolling parts 6A is limited to the direction perpendicular to the predetermined side 41A in plan view. Therefore, the user of the fixture with a top plate 1 can easily move the fixture with a top plate 1 along the floor surface F in a direction perpendicular to the predetermined side 41A while gripping the portion of the top plate 4 along the predetermined side 41A, that is, the fixture with a top plate 1 can be stably moved in a specific direction. Therefore, it is possible to ensure the mobility of the fixture with a top plate 1 when it is desired to move it in a specific direction.

[0055] Furthermore, in the tabletop-equipped fixture 1 of this embodiment, the upright portion 3 (support column portion 31) is located in the center of the tabletop 4 in a plan view. Also, the four leg rod portions 5 extend linearly from the lower end of the upright portion 3 (support column portion 31) toward the four corners 43 of the tabletop 4 in a plan view. As a result, even if a user of the tabletop-equipped fixture 1 places their feet under the tabletop 4 from any of the four sides 41, 42 of the tabletop 4, interference between the user's feet and the upright portion 3 (support column portion 31) and leg rod portions 5 can be more effectively suppressed or prevented. Therefore, the user can use the tabletop-equipped fixture 1 more comfortably.

[0056] Furthermore, in the fixture with a top plate 1 of this embodiment, in a plan view, the direction of rotation of the wheels 61 that roll in a direction perpendicular to a predetermined side 41A of the top plate 4 is along a second imaginary line VL2 that bisects the interior angle θ formed by the first leg rod 5A and the second leg rod 5B, which are provided with two rolling parts 6A among the four linearly extending leg rods 5. In this configuration, in a plan view, the direction of rotation of the wheels 61 does not tilt toward the first leg rod 5A side or the second leg rod 5B side with respect to the second imaginary line VL2, so the fixture with a top plate 1 can be easily moved in a specific direction compared to the case where it is tilted.

[0057] Furthermore, in the tabletop-equipped fixture 1 of this embodiment, the leg rod portion 5 is formed in a shape that tapers towards the tip in the extension direction Dll of the leg rod portion 5. Therefore, compared to the case where the entire leg rod portion 5 is formed with the same thickness, the leg rod portion 5 appears slimmer, thus providing a tabletop-equipped fixture 1 with a good appearance design.

[0058] Furthermore, in the tabletop-equipped fixture 1 of this embodiment, the pair of side surfaces 51 of each leg rod 5 are inclined so as they move from the upper end to the lower end of the leg rod 5, they approach the opposing side surface 51 of the leg rod 5. Therefore, when the leg rod 5 is viewed from diagonally above, the inclined side surfaces 51 of the leg rod 5 become difficult to see or appear smaller. As a result, the leg rod 5 appears thinner than its actual thickness. In other words, the leg rod 5 appears slim, making it possible to provide a tabletop-equipped fixture 1 with a good appearance design. Furthermore, in the tabletop-equipped fixture 1 of this embodiment, the leg rod portion 5 can be made to appear slim while ensuring sufficient thickness for forming the housing hole 53 for the rolling part 6A.

[0059] Furthermore, in the tabletop-equipped fixture 1 of this embodiment, two of the four contact points 6 are adjusters 6B having contact surfaces 6B1 that make surface contact with the floor surface F. With this configuration, when the adjusters 6B are in contact with the floor surface F, it is possible to suppress the unexpected movement of the tabletop-equipped fixture 1 along the floor surface F due to frictional force between the floor surface F and the contact surface 6B1.

[0060] In the tabletop-equipped furniture unit 1 of this embodiment, the upright portion 3 connecting the four leg rods 5, which are positioned on the floor surface F via the ground contact portion 6, and the tabletop 4, which is located above the four leg rods 5, is a single support column 31 extending in the vertical direction Dv. Therefore, even if a user of the tabletop-equipped furniture unit 1 places their feet under the tabletop 4, interference between the user's feet and the support column 31 can be suppressed. Consequently, the user can use the tabletop-equipped furniture unit 1 comfortably.

[0061] Furthermore, in the fixture with a top plate 1 of this embodiment, the rolling part 6A, which has wheels 61 and a support 62, is housed in the housing hole 53 of the leg rod 5 from below. Therefore, when the fixture with a top plate 1 is positioned so that the rolling part 6A is in contact with the floor surface F, even if an external force is applied to the rolling part 6A in a direction perpendicular to the vertical direction Dv, it is possible to suppress problems such as the rolling part 6A shifting out of position from its predetermined position on the leg rod 5.

[0062] Furthermore, in the fixture 1 with a top plate of this embodiment, the restricting means 7 that restricts the rotation of the rolling part 6A around an axis extending in the vertical direction Dv relative to the housing hole 53 is composed of a first flat side surface 71c and a second flat side surface 72c. As a result, the mounting structure of the rolling part 6A to the leg rod 5 can be made smaller compared to the case where the restricting means 7 is composed of a fastening means using bolts. In addition, the leg rod 5 on which the rolling part 6A is provided can be made smaller. By making the leg rod 5 smaller, the leg rod 5 can be made thinner in the vertical direction Dv. Also, by making the mounting structure of the rolling part 6A to the tip of the leg rod 5 smaller, the leg rod 5 can be formed into a shape that becomes thinner towards the tip in its extension direction Dll.

[0063] Furthermore, the top-mounted fixture 1 of this embodiment has an engaging projection 71 and an engaging recess 72 as restricting means 7. This allows the engaging projection 71 and the engaging recess 72 to restrict the rotation of the rolling part 6A around the axis extending in the vertical direction Dv relative to the housing hole 53. In addition, since the engaging projection 71 and the engaging recess 72 have first and second flat surfaces 71c and 72c facing each other, the rotation of the rolling part 6A can be reliably restricted even if there is only one engaging projection 71 and one engaging recess 72.

[0064] Furthermore, in the top-mounted fixture 1 of this embodiment, the engaging protrusions 71 and engaging recesses 72 constituting the regulating means 7 are arranged in pairs, spaced apart from each other, in an intersecting direction that intersects the vertical direction Dv. With this configuration, when the two engaging protrusions 71 are engaged with the two engaging recesses 72, a portion of the support 62 can be sandwiched between the two engaging protrusions 71 formed in the housing hole 53 in the intersecting direction that intersects the vertical direction Dv (see Figure 5). This ensures that, when the support 62 is housed in the housing hole 53 of the leg rod portion 5, the rolling portion 6A including the support 62 does not rotate around an axis extending in the vertical direction Dv relative to the leg rod portion 5.

[0065] Furthermore, in the top-mounted fixture 1 of this embodiment, the engaging projections 71 are positioned at both ends of the inner surface of the housing hole 53 in the direction along the rotation axis RA (width direction Dw), and protrude downward from the inner surface of the housing hole 53. The engaging recesses 72 are positioned at both ends of the outer surface of the support 62 in the direction along the rotation axis RA, and are recessed downward from the outer surface of the support 62. With this configuration, when the support 62 is housed in the housing hole 53 of the leg rod portion 5, it is possible to reliably prevent the rolling portion 6A, including the support 62, from rotating around an axis extending in the vertical direction Dv relative to the leg rod portion 5.

[0066] Furthermore, when the two engaging protrusions 71 and the two engaging recesses 72 are aligned along the rotation axis RA, the mounting structure of the rolling part 6A to the leg rod 5 can be miniaturized compared to when they are aligned perpendicular to the rotation axis RA in a plan view (front-rear direction Da). This point will be explained below. In order to minimize the height dimension of the rolling part 6A in the vertical direction Dv, it is necessary to position the two engaging recesses 72 provided on the support 62 on the outside of the wheel 61 when viewed from the vertical direction Dv, so that the two engaging recesses 72 do not interfere with the wheel 61. In this case, positioning the two engaging recesses 72 at both ends of the outer surface of the support 62 in the direction along the rotation axis RA (width direction Dw) allows for a smaller spacing between the two engaging recesses 72 compared to positioning them at both ends of the outer surface of the support 62 in the direction of the wheel 61's rolling (front-rear direction Da). This makes it possible to miniaturize the mounting structure of the rolling part 6A to the leg rod 5.

[0067] Furthermore, if the dimensions of the rolling portion 6A in the rolling direction of the wheel 61 are kept constant, arranging the two engaging recesses 72 at both ends of the outer surface of the support 62 in the direction along the rotation axis RA allows for a larger dimension of the wheel 61 in the rolling direction, i.e., the diameter of the wheel 61, compared to arranging the two engaging recesses 72 at both ends of the outer surface of the support 62 in the rolling direction of the wheel 61. By allowing for a larger diameter of the wheel 61, the operability when moving the furniture while rolling the wheel 61 on the floor surface F can be improved.

[0068] Furthermore, in the top-mounted fixture 1 of this embodiment, the support 62 of the rolling part 6A has a pair of side wall portions 65 located on both sides of the wheel 61 in the direction along the rotation axis RA, on which a shaft member 63 that rotatably supports the wheel 61 is mounted, and a top wall portion 66 located above the wheel 61 and connected to the pair of side wall portions 65. Each of the pair of side wall portions 65 has an extended wall portion 67 that extends outward from the support 62 in the direction along the rotation axis RA from a portion above the mounting portion 651 of the side wall portion 65 on which the shaft member 63 is mounted and below the top wall portion 66. The lower end of the engagement recess 72 is defined by the extended wall portion 67.

[0069] In this configuration, when the rolling part 6A is housed in the housing hole 53 and the engaging projection 71 of the housing hole 53 engages with the engaging recess 72 of the support 62, the lower end of the engaging projection 71 abuts against the upper surface of the extended wall portion 67 which forms the lower end of the engaging recess 72, thereby causing the load of the leg rod portion 5, etc., to act on the upper surface 4a of the extended wall portion 67. Here, the extended wall portion 67 extends outward from the support 62 in a direction along the rotation axis RA from the portion of the side wall portion 65 above the mounting portion 651 of the shaft member 63. Therefore, the load of the leg rod portion 5, etc., acting on the upper surface of the extended wall portion 67 can be prevented from being transmitted to the mounting portion 651 of the side wall portion 65. In other words, the load acting on the mounting portion 651 of the side wall portion 65 can be reduced. This protects the mounting portion 651 of the side wall portion 65. Furthermore, if, for example, the extended wall portion 67 also includes the erection portion 651 of the side wall portion 65, the load transmitted to the erection portion 651 will be large. Therefore, if there are molding defects in the engaging recess 72 or the erection portion 651 of the side wall portion 65, the large load may cause problems such as cracks in the support 62.

[0070] Furthermore, in the fixture with a top plate 1 of this embodiment, a surface joining member 8 is interposed between the bottom surface 53a of the downward-facing storage hole 53 and the top surface 62a of the support 62 that faces upward and is opposite the bottom surface 53a. As a result, the rolling part 6A is fixed to the tip of the leg rod 5 by the surface joining member 8, and it is possible to reliably prevent the rolling part 6A from falling downward from the tip of the leg rod 5. Furthermore, by fixing the rolling part 6A to the tip of the leg rod 5 using the surface joining member 8, the mounting structure for the rolling part 6A to the leg rod 5 can be made smaller (especially lower in profile) compared to the case where the rolling part 6A is fixed to the tip of the leg rod 5 using fastening means with bolts.

[0071] Furthermore, by housing the support 62 in the housing hole 53, even if an external force acts on the rolling part 6A (for example, the wheel 61) in a direction perpendicular to the vertical direction Dv, it is possible to prevent the top surface 62a of the support 62 from peeling off from the bottom surface 53a of the housing hole 53 against the joining force of the surface joining member 8 based on that external force. Furthermore, since the surface joint member 8 is located inside the housing hole 53, it is difficult to see from the outside of the leg rod 5. This prevents the appearance of the tabletop fixture 1 from being degraded by the presence of the surface joint member 8.

[0072] Furthermore, in the fixture with a top plate 1 of this embodiment, the surface joining member 8 is compressible and deformable in the direction in which the bottom surface 53a of the housing hole 53 and the top surface 62a of the support 62 are aligned. Therefore, even if the shapes of the top surface 62a of the support 62 and the bottom surface 53a of the housing hole 53 do not match due to factors such as molding defects (for example, if the top surface 62a and the bottom surface 53a are not parallel), the surface joining member 8 can compressively deform as appropriate to ensure the joint strength between the top surface 62a and the bottom surface 53a.

[0073] Although embodiments of the present invention have been described above, the present invention is not limited to the embodiments described above and can be modified as appropriate without departing from the spirit of the invention.

[0074] In the present invention, for example, the engaging projection 71 and engaging recess 72 constituting the restricting means 7 may be arranged in pairs, for example, with a gap between them in the front-rear direction Da.

[0075] In the present invention, the number of engaging projections 71 and engaging recesses 72 may be, for example, one each, or three or more each.

[0076] In the present invention, for example, the engaging projection 71 constituting the regulating means 7 may be provided on the support 62, and the engaging recess 72 may be provided on the housing hole 53. Specifically, the engaging projection 71 may protrude upward (to one side in the vertical direction Dv) from the outer surface of the support 62 facing the inner surface of the housing hole 53 when the support 62 of the rolling part 6A is housed in the housing hole 53 of the leg rod 5. Alternatively, the engaging recess 72 may be recessed upward (to one side in the vertical direction Dv) from the inner surface of the housing hole 53 facing the outer surface of the support 62 when the support 62 of the rolling part 6A is housed in the housing hole 53 of the leg rod 5.

[0077] In the present invention, the restricting means 7 only needs to have at least a first flat surface 71c and a second flat surface 72c, and does not need to have an engaging projection 71 and an engaging recess 72.

[0078] In the present invention, the first flat surface 71c formed on the inner surface of the housing hole 53 may be arranged in multiples, for example, in the circumferential direction of the housing hole 53 (in the direction around the axis extending in the vertical direction Dv). Similarly, the second flat surface 72c formed on the outer surface of the support 62 may be arranged in multiples, for example, in the circumferential direction of the support 62 (in the direction around the axis extending in the vertical direction Dv). That is, the plan view shape of the housing hole 53 and the support 62 as seen from the vertical direction Dv may be polygonal. Even with such a configuration, the same effects as in the above embodiment can be achieved.

[0079] In the present invention, the first flat surface 71c formed on the inner surface of the accommodating hole 53 and the second flat surface 72c formed on the outer surface of the support 62 may be oriented in a direction that is inclined with respect to the vertical direction Dv, rather than in a direction perpendicular to the vertical direction Dv.

[0080] In the present invention, it is sufficient that at least one of the pair of side surfaces 51 of the leg rod portion 5 is inclined to approach the other side surface 51 of the leg rod portion 5 as it moves from the upper end to the lower end. Even with such a configuration, as in the above embodiment, the apparent thickness of the leg rod portion 5 when viewed from diagonally above on one side surface 51 of the leg rod portion 5 can be made smaller than the actual thickness of the leg rod portion 5. This makes it possible to provide a fixture with a top plate that has a good appearance.

[0081] In the present invention, the four leg rods 5 are not limited to being formed radially in a plan view, but may be formed in any shape. The four leg rods 5 may be formed in an H shape in a plan view, for example. In order to form the four leg rods 5 in an H shape, for example, the following can be done: The four leg rods 5 are divided into two sets of two leg rods 5 so that two leg rods 5 make up one set. The base ends of the two leg rods 5 in each set are formed integrally, and the tips of these two leg rods 5 are formed separately. The base ends of the integrated leg rods 5 of the two sets are extended from the lower end of the support column 31 in different directions (for example, opposite directions), and the tips of the two leg rods 5 formed separately in the same set are extended to positions corresponding to two different corners 43 of the top plate 4 (for example, two adjacent corners 43 along sides 41 and 42 of the top plate 4).

[0082] In the present invention, the upright section 3 may include, for example, a plurality of support sections 31 extending in the vertical direction Dv, and connecting sections that connect adjacent support sections 31. In such a configuration, the number of support sections 31 is preferably, for example, two or four. For example, if there are two support sections 31, in a plan view, two leg sections 5 may extend from the lower end of the same support section 31 toward different corners 43 of the tabletop 4. For example, if there are four support sections 31, the four leg sections 5 may extend from the lower ends of different support sections 31 toward different corners 43 of the tabletop 4 in a plan view.

[0083] In this invention, the number of rolling parts 6A among the four grounding parts 6 only needs to be at least two. Alternatively, for example, all of the grounding parts 6 may be rolling parts 6A.

[0084] In the present invention, the rolling part 6A only needs to have at least a wheel 61. In this case, the wheel 61 may be directly attached, for example, to the tip of the leg rod 5 so as to be able to roll.

[0085] In the present invention, the top plate 4 only needs to be formed in any quadrilateral shape, such as a rectangle or trapezoid, when viewed from above. The rectangular tabletop 4 in plan view in this invention may include not only tabletops 4 with four straight sides 41 and 42, but also tabletops 4 in which, for example, the four sides 41 and 42 of the tabletop 4 are curved so that they bulge outwards. Furthermore, the rectangular tabletop 4 in plan view in this invention may include tabletops 4 that are circular in plan view and inscribed within a rectangle. [Explanation of Symbols]

[0086] 1. Display unit with tabletop 2. Main body of the fixture 3 Standing part 4 Top plate 5 Leg stem 5A First leg rod 5B Second leg rod 6 Grounding part 6A Rolling part 6B Adjuster 6B1 Contact surface 7. Regulatory measures 8-sided joint member 31 Pillar section 41, 42 sides 41A Specified side 43 corners 51 Side view 53 Intake 53a Bottom 61 wheels 62 Support 62a top surface 63 Shaft member 65 Side wall section 66 Top wall section 67 Extending wall section 71 Engagement protrusion 72 Engaging recess 651 Erection site Da (forward and backward direction) Dv vertical direction Dw width direction F Floor RA rotation axis VL2 Second virtual line (virtual line) θ interior angle

Claims

1. An upright portion extending in the vertical direction, The top plate is shaped like a rectangular plate in a plan view from the top and bottom, and is supported from below by the upright portion. In the plan view, there are four leg rods that extend from the lower end of the upright portion toward the four corners of the top plate, It comprises four contact points provided at the ends of the four leg rods in the direction of extension, which contact the floor surface, A fixture with a top plate, wherein at least two of the four ground contact points, which are aligned along one predetermined side of the top plate, are rolling parts having wheels that roll only in a direction perpendicular to the predetermined side in a plan view.

2. The upright portion is located in the center of the top plate in the plan view. The fixture with a tabletop according to claim 1, wherein the four leg rods each extend in a straight line from the lower end of the upright portion toward the four corners of the tabletop in a plan view.

3. The fixture with a top plate according to claim 2, wherein, in the plan view, the direction of rotation of the wheel that rolls in a direction perpendicular to the predetermined side is along a virtual line that bisects the interior angle formed by the first leg rod and the second leg rod, of which two of the four leg rods are provided with the rolling parts.

4. The fixture with a tabletop according to any one of claims 1 to 3, wherein the leg rod portion is formed in a shape that becomes thinner towards the tip portion in the direction of extension of the leg rod portion.

5. The leg rod portion has a pair of sides facing opposite directions in the width direction perpendicular to the extension direction of the leg rod portion and the vertical direction. The fixture with a top plate according to any one of claims 1 to 3, wherein at least one of the pair of sides is inclined to approach the other side of the leg rod as it moves from the upper end to the lower end of the leg rod.

6. The other two ground contact parts are adjusters having contact surfaces that make surface contact with the floor surface, according to any one of claims 1 to 3.

7. The fixture with a top plate according to any one of claims 1 to 3, wherein the upright portion is a single support column extending in the vertical direction.

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