Furniture with top boards
The fixture with a top plate, utilizing non-rollable contact and tubular structures, addresses instability issues in cantilevered furniture by enhancing friction and rigidity, ensuring stable installation of heavy tabletops.
Patent Information
- Application Number
- JP2024021426
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-02-15
- Publication Date
- 2025-08-27
AI Technical Summary
Existing furniture with cantilevered tabletops face instability due to insufficient friction between legs and the installation surface, especially when the tabletops are large or heavy, leading to difficulty in stable installation.
A fixture with a top plate supported by a base portion that intersects the vertical direction, featuring a grounding portion for non-rollable contact with the installation surface, enhancing friction and stability through a combination of thin plate materials and tubular structures for improved bending and torsional rigidity.
Ensures stable installation of large or heavy tabletops by maintaining friction and resisting loads, even when cantilevered, while reducing manufacturing costs and improving aesthetic appearance.
Smart Images

Figure 2025125391000001_ABST
Abstract
Description
[Technical Field]
[0001] The present invention relates to a fixture with a top. [Background technology]
[0002] Various facilities, such as offices and public facilities, are equipped with furniture with tabletops to provide users with work surfaces. One such furniture with tabletops is disclosed in which a support column extending in the vertical direction, a tabletop supported in a cantilevered manner on the upper end of the support column, and legs extending from the lower end of the support column along the installation surface while facing the tabletop and contacting the installation surface via casters (see, for example, Patent Document 1 below). [Prior art documents] [Patent documents]
[0003] [Patent Document 1] Patent No. 5479952 Summary of the Invention [Problem to be solved by the invention]
[0004] In a configuration in which the tabletop is cantilevered on a support column, as in the above-mentioned tabletop-equipped furniture, a downward load acting on the free end of the tabletop acts to lift up the connecting portion of the legs with the support column. In the prior art, the legs are in contact with the installation surface via casters, making it difficult to ensure sufficient friction between the legs and the installation surface. Therefore, the prior art still has room for improvement in terms of stably installing tabletop-equipped furniture, especially those with large or heavy tabletops.
[0005] The present invention provides a fixture with a top that can be stably installed even if the top is large or heavy. [Means for solving the problem]
[0006] In order to solve the above problems, the present invention employs the following aspects. (1) A fixture with a top plate according to one embodiment of the present invention comprises a support structure, and a top plate formed in two directions intersecting the vertical direction, with a first direction as the longitudinal direction and a second direction as the short direction, and supported from below by the support structure, wherein the support structure has a grounding portion that is non-rollably grounded on the installation surface, and comprises a base portion formed with the first direction as the longitudinal direction and the second direction as the short direction, and a support portion that extends upward from a first side end of the base portion in the first direction and supports the first side end of the top plate in the first direction.
[0007] According to this aspect, the base is in contact with the installation surface via a non-rolling contact portion, which facilitates ensuring friction between the installation surface and the base (contact portion). Therefore, even if a large load acts on the base's connection to the support column due to the cantilevered top, such as when the top is cantilevered by the support column, the base can easily resist the load. This allows stable installation of even a tabletop-equipped fixture with a large or heavy tabletop.
[0008] (2) In the fixture with a top plate according to the aspect (1) above, it is preferable that the grounding portion is provided over the entire area of the base portion in the first direction. According to this aspect, it is easy to ensure the frictional force acting between the installation surface and the base portion, which allows the tabletop-equipped fixture to be installed more stably.
[0009] (3) In the fixture with a top plate according to either of the above aspects (1) or (2), it is preferable that the base portion is formed by bending a plate material that is thinner than the height of the base portion in the vertical direction. According to this aspect, it is easier to ensure the bending rigidity of the base portion compared to when the base portion is formed as a solid body having a thickness equivalent to the height of the base portion, which makes it easier for the base portion to exert resistance to the load of the tabletop.
[0010] (4) In the fixture with a top plate according to the aspect (3) above, it is preferable that the base portion has a first cylindrical portion formed in a square cylindrical shape extending in the first direction. According to this aspect, since it is easy to ensure the bending rigidity of the base portion, it is easy for the base portion to exert resistance to the load of the top plate. In addition, since the square tube member itself is a general-purpose product, it is possible to reduce manufacturing costs.
[0011] (5) In the fixture with a top plate according to the above aspect (4), it is preferable that the base portion is formed in a rectangular cylindrical shape extending in the second direction and has a second cylindrical portion connected to the first cylindrical portion. According to this aspect, since the second tubular portion is connected to the first tubular portion, it is easy to ensure torsional rigidity in the base portion, and as a result, the tabletop-equipped furniture can be stably installed not only in the bending direction of the tabletop but also in the twisting direction.
[0012] (6) In the fixture with a top plate according to any one of the above aspects (1) to (5), it is preferable that the base portion comprises an internal frame on which the grounding portion is provided, and a frame cover that covers the internal frame from above and is fixed to the internal frame. According to this aspect, the aesthetic appearance of the base portion can be improved by covering the internal frame with the frame cover. Moreover, since the frame cover is fixed to the internal frame, it is easy to ensure the bending rigidity of the base portion.
[0013] (7) In the fixture with a top plate relating to the above aspect (6), it is preferable that the frame cover has an upper plate portion that overlaps the internal frame in a plan view, and a pair of side plate portions that extend downward from both end edges of the upper plate portion in the second direction. According to this aspect, it is easy to ensure the bending rigidity of the frame cover.
[0014] (8) In the fixture with a top plate according to the aspect (7) above, it is preferable that the side plate portions extend at an inclination downward as they move away from the top plate portion in the second direction. According to this aspect, when the user uses the table top by positioning the user on the first side or the second side in the second direction relative to the table top, the user's feet are less likely to get caught on the side plate portions of the frame cover.
[0015] (9) In the fixture with a top according to any one of the above aspects (6) to (8), it is preferable that the internal frame is formed by combining square tubular members. According to this aspect, it is easy to ensure the bending rigidity of the inner frame.
[0016] (10) In the fixture with a tabletop according to any one of the above aspects (1) to (9), it is preferable that the dimension of the base portion on a first side in the second direction relative to the center of the tabletop in the second direction is smaller than the dimension of the second side in the second direction. According to this aspect, the base portion is formed asymmetrically in the second direction with respect to the center of the tabletop. This makes it easier to secure the space below the tabletop that is located on the first side in the second direction with respect to the center of the tabletop than the space that is located on the second side in the second direction with respect to the center of the tabletop. For example, by using the tabletop-equipped furniture so that the main user is located on the first side in the second direction with respect to the tabletop and the secondary user is located on the second side in the second direction with respect to the center of the tabletop, it is easy to secure space for the main user's lower legs. [Effects of the Invention]
[0017] According to each of the above aspects, even a large or heavy top plate can be stably installed. [Brief explanation of the drawings]
[0018] [Figure 1] FIG. 1 is a perspective view of a fixture with a top plate according to an embodiment, viewed from above. [Figure 2] FIG. 2 is a bottom view of the display unit with a top plate according to the embodiment. [Figure 3] FIG. 2 is a perspective view of the support structure according to the embodiment, seen from above. [Figure 4] FIG. 2 is an exploded perspective view of the support structure according to the embodiment. [Figure 5]FIG. 2 is a cross-sectional view corresponding to the line VV in FIG. [Figure 6] FIG. 2 is a cross-sectional view corresponding to the line VI-VI in FIG. [Figure 7] FIG. 7 is a cross-sectional view corresponding to the line VII-VII in FIG. DETAILED DESCRIPTION OF THE INVENTION
[0019] Next, an embodiment of the present invention will be described with reference to the drawings. In the embodiments and modifications described below, corresponding components may be designated by the same reference numerals, and a description thereof may be omitted. In the following description, expressions indicating relative or absolute arrangements, such as "parallel," "orthogonal," "center," and "coaxial," not only strictly refer to such arrangements, but also refer to a state in which there is a relative displacement with an angle or distance to the extent that tolerances or the same function are obtained. In this embodiment, "facing" does not only refer to a case in which the orthogonal directions (normal directions) of two surfaces are aligned with each other, but also includes a case in which the orthogonal directions intersect with each other.
[0020] [Fixture with tabletop 1] FIG. 1 is a perspective view of a tabletop-equipped fixture 1 seen from above. The tabletop-equipped fixture 1 shown in Figure 1 is installed on an installation surface F in various facilities. The tabletop-equipped fixture 1 includes a desk fixture 10 and a storage fixture 11. In the following explanation, the direction perpendicular to the installation surface F is referred to as the up-down direction, and the two directions perpendicular to the up-down direction are referred to as the left-right direction and the front-to-back direction. In this case, the arrow FR indicates the forward direction, and the arrow LH indicates the left side (the left side as seen from the user of the sub-function described below).
[0021] <Desk furniture 10> The desk fixture 10 includes a top plate 21 and a support structure 22.
[0022] <Tabletop 21> The tabletop 21 is formed in a rectangular shape with the left-right direction as the longitudinal direction and the front-to-rear direction as the short side when viewed from the top-down direction (plan view). The tabletop 21 of this embodiment is a relatively large tabletop with a left-to-right dimension of, for example, 180 cm to 210 cm. The tabletop 21 can be used by, for example, multiple users facing each other in the front-to-rear direction with the tabletop 21 in between. In this case, the tabletop 21 can be used with a main user (e.g., a daily user) positioned in front of the tabletop 21 and a secondary user (e.g., a visitor) positioned behind the tabletop 21. The upper surface of the tabletop 21 forms a smooth work surface. The tabletop 21 may be usable only from either the front-to-rear direction or from the left-to-right direction.
[0023] The table top 21 has a dimension in the front-to-rear direction that increases toward a first side (left side) in the left-to-right direction. Specifically, the entire front edge of the table top 21 extends linearly in the left-to-right direction, and the rear edge extends while curving forward toward a second side (right side) in the left-to-right direction. That is, in a plan view, the table top 21 is formed in an asymmetric shape with respect to an imaginary line L that passes through the center of the left edge in the front-to-rear direction. However, the table top 21 may also be formed in a symmetric shape with respect to the imaginary line L. Furthermore, the table top 21 may have a shape other than a rectangular shape, such as an oval, as long as the shape has the left-to-right direction as the longitudinal direction and the front-to-rear direction as the lateral direction.
[0024] <Support structure 22> Fig. 2 is a bottom view of the tabletop-equipped furniture 1. Fig. 3 is a perspective view of the support structure 22 as seen from above. Fig. 4 is an exploded perspective view of the support structure 22. 2 to 4, the support structure 22 supports the top plate 21 from below. The support structure 22 includes base legs 25, support columns 26, and auxiliary columns 27.
[0025] The base leg 25 is disposed along the installation surface F, and functions as a base for the support structure 22. The base leg 25 is formed in an L-shape in a plan view. The base leg 25 includes a first base portion 31, a second base portion 32, and a pedestal portion 33. 2 and 4, the first base portion 31 is formed in a rectangular shape with the longitudinal direction being the left-right direction and the lateral direction being the short side direction in a plan view. The first base portion 31 includes an internal frame 41 and a frame cover 42.
[0026] FIG. 5 is a cross-sectional view taken along line VV in FIG. As shown in FIGS. 2 to 5 , the internal frame 41 is formed in a ladder shape with the left-right direction as the long side and the front-rear direction as the short side by combining multiple rectangular tubular members with the up-down direction as the long side, out of the two directions intersecting the extension direction. In the illustrated example, the length of the internal frame 41 in the left-right direction is shorter than the length of the tabletop 21 in the left-right direction, and the length in the front-rear direction is shorter than the length of the tabletop 21 in the front-rear direction. Therefore, the entire internal frame 41 overlaps the tabletop 21 in a plan view. The rectangular tubular members constituting the internal frame 41 are formed by bending a plate material thinner than the vertical height of the first base portion 31 by press processing or the like, and then fixing the opposing edges together by welding or the like. In other words, the rectangular tubular members constituting the internal frame 41 are formed hollow.
[0027] The rectangular tubular members that make up the internal frame 41 include first left and right frames 44 a, 44 b, side frames 45 , first front and rear frames 46 , a partition frame 47 , end frames 48 , and a connecting frame 49 . The first left and right frames 44 are provided as a pair spaced apart in the front-rear direction. The first left and right frames 44 extend parallel to each other in the left-right direction while facing each other in the front-rear direction. As shown in Fig. 2, the side frame 45 is disposed rearward of the rear first left / right frame 44b of the first left / right frames 44a, 44b. The side frame 45 extends parallel to the first left / right frame 44b, facing the left end of the first left / right frame 44b in the front-rear direction. In the illustrated example, a portion of the side frame 45 protrudes to the left of the first left / right frame 44b. Note that the distance in the front-rear direction between the first left / right frame 44b and the side frame 45 is shorter than the distance in the front-rear direction between the first left / right frames 44a, 44b.
[0028] As shown in Figures 2 and 4, the first front-rear frame 46 connects the portions of the first left-right frames 44a, 44b that protrude further to the right than the side frame 45. In this embodiment, a plurality of first front-rear frames 46 are provided at intervals in the left-right direction. The first front-rear frames 46 extend parallel to each other in the front-rear direction. Both front and rear ends of each first front-rear frame 46 are fixed to the corresponding first left-right frame 44a, 44b by welding or the like.
[0029] The compartment frame 47 connects the first left and right frames 44a, 44b at their portions that overlap with the side frames 45 when viewed from the front-to-rear direction. A pair of compartment frames 47 are provided with a gap in the left-to-right direction. Like the first front-to-rear frames 46, each compartment frame 47 extends linearly in the front-to-rear direction. Both front and rear ends of each compartment frame 47 are fixed to the corresponding first left and right frames 44a, 44b by welding or the like. The space surrounded by the first left and right frames 44a, 44b and the compartment frame 47 forms a base accommodating section 50 that is rectangular in plan view.
[0030] The end frame 48 connects the left ends of the first left and right frames 44a, 44b and the side frames 45. The end frame 48 extends parallel to the partition frame 47. The end frame 48 is fixed to the first left and right frames 44a, 44b and the side frames 45 by welding or the like.
[0031] The lower surface of each of the frames 44 to 48 of the internal frame 41 is in direct contact with the installation surface F. In this case, it is preferable that the entire lower surface of the internal frame 41 is in direct contact with the installation surface F. However, the internal frame 41 may also be in contact with the installation surface F via a non-rolling contact portion such as an adjuster.
[0032] The frame cover 42 conceals the internal frame 41 so that it cannot be seen from the outside. The frame cover 42 is formed by bending a thin plate material thinner than the vertical height of the first base portion 31 through press processing or the like. The frame cover 42 is formed in a hollow box shape that opens downward, thereby covering the internal frame 41 from above and the sides. The frame cover 42 is formed in a shape similar to the top plate 21 in a scaled-down plan view. Specifically, the entire front edge of the frame cover 42 extends linearly in the left-right direction, while the rear edge extends while curving forward as it moves toward the right. Therefore, the distance from the imaginary line L to the front edge of the frame cover 42 is uniform throughout the entire length in the left-right direction. In this case, as shown in FIG. 4 , the distance D1 from the imaginary line L to the front edge of the frame cover 42 is shorter than the maximum distance D2 (the distance at the left end) from the imaginary line L to the rear edge of the frame cover 42. In the illustrated example, the distance D1 from the imaginary line L to the front edge of the frame cover 42 is equal to the minimum distance D3 (the distance at the right end) from the imaginary line L to the rear edge.
[0033] As shown in FIGS. 3 and 4, the frame cover 42 includes an upper plate portion 42a and a side plate portion 42b. The upper plate portion 42a overlaps with at least a portion of the internal frame 41 that avoids the base accommodating portion 50 in a plan view. The portion of the upper plate portion 42a that overlaps with the internal frame 41 in a plan view is fixed to the internal frame 41 by welding or the like. Therefore, the frame cover 42, together with the internal frame 41, constitutes a strength member. A recess 42c that is open forward and in the vertical direction is formed in the portion of the upper plate portion 42a that overlaps with at least the base accommodating portion 50 in a plan view. In other words, the left end portion of the first left / right frame 44a and the base accommodating portion 50 are exposed upward through the recess 42c.
[0034] The side plate portion 42b is continuous with the outer peripheral edge of the upper plate portion 42a. The side plate portion 42b extends downward from the upper plate portion 42a to surround the periphery of the inner frame 41. The side plate portion 42b includes a front wall portion 42b1, a rear wall portion 42b2, and a right wall portion 42b3.
[0035] 5, the front wall portion 42b1 is continuous with the front edge of the upper plate portion 42a. The front wall portion 42b1 slopes downward as it extends forward. The front edge of the front wall portion 42b1 forms the front edge of the frame cover 42. The front edge of the front wall portion 42b1 is in contact with the installation surface F. The rear wall portion 42b2 is continuous with the rear edge of the upper plate portion 42a. The rear wall portion 42b2 slopes downward as it extends rearward. The rear edge of the rear wall portion 42b2 forms the rear edge of the frame cover 42. The rear edge of the rear wall portion 42b2 is in contact with the installation surface F. As shown in Figures 3 and 4, the right wall portion 42b3 is continuous with the left edge of the upper plate portion 42a and spans the front wall portion 42b1 and the rear wall portion 42b2 in the front-to-rear direction. The right wall portion 42b3 slopes downward as it moves leftward. The right edge of the right wall portion 42b3 is in contact with the installation surface F. A gap large enough to prevent a front sheet or the like from getting inside may be provided between the outer periphery of the side plate portion 42b and the installation surface F. The side plate portion 42b may also extend perpendicular to the installation surface F.
[0036] The second base portion 32 extends forward from the left end portion of the first base portion 31. The second base portion 32 includes a frame main body 51 and a frame connecting portion 52. The frame main body 51 is formed in a ladder shape with the front-rear direction as its longitudinal direction and the left-right direction as its short side by combining rectangular tube members with the left-right direction as its longitudinal direction, of the two directions intersecting the extension direction. In a plan view, the frame main body 51 protrudes forward relative to the top plate 21. Note that the rectangular tube members constituting the frame main body 51 are formed, for example, by bending a thin plate material thinner than the vertical height of the second base portion 32 by press processing or the like, and then fixing the opposing edges together by welding or the like. In other words, the rectangular tube members constituting the frame main body 51 are hollow. In this embodiment, the vertical height of the frame main body 51 is lower than the vertical height of the internal frame 41. However, the heights of the frame main body 51 and the internal frame 41 can be changed as appropriate.
[0037] The frame body 51 includes a second front-rear frame 53 and a second left-right frame 54 . The second front-rear frames 53 are provided as a pair with a gap in the left-right direction. The second front-rear frames 53 extend parallel to each other in the front-rear direction while facing each other in the left-right direction. The second left-right frame 54 spans the second front-rear frames 53 in the front-rear direction. In this embodiment, a plurality of second left-right frames 54 are provided at intervals in the front-rear direction. The second left-right frames 54 extend parallel to each other in the left-right direction. Both left and right ends of each second left-right frame 54 are fixed to the corresponding second front-rear frame 53 by welding or the like.
[0038] The lower surfaces of the frames 53 and 54 of the frame main body 51 are in direct contact with the installation surface F. In this case, it is preferable that the entire lower surface of the frame main body 51 is in direct contact with the installation surface F. However, the frame main body 51 may also be in contact with the installation surface F via a non-rolling contact portion such as an adjuster.
[0039] The frame connecting portion 52 connects the inner frame 41 and the frame main body 51. The frame connecting portion 52 is formed by bending a metal or other plate material into a crank shape. The front end of the frame connecting portion 52 overlaps from above with the second left / right frame 54a, which is the rearmost of the second left / right frames 54. The front end of the frame connecting portion 52 is fastened to the second left / right frame 54a with screws or the like. The rear end of the frame connecting portion 52 overlaps from above with the left end of the first left / right frame 44a (the portion exposed through the recess 42c). The rear end of the frame connecting portion 52 is fastened to the left end of the first left / right frame 44a with screws or the like.
[0040] FIG. 6 is a cross-sectional view taken along line VI-VI in FIG. As shown in FIGS. 4 and 6 , the base 33 is formed into a box shape that opens downward by pressing a metal or other plate material. The base 33 is fitted into the base accommodating portion 50. Specifically, the upper wall 33a of the base 33 has the same external shape as the base accommodating portion 50 in a plan view. The upper wall 33a is exposed upward through the upper end opening of the base accommodating portion 50. The side walls 33b of the base 33 are bent downward from each edge of the upper wall 33a. The side walls 33b are fixed by welding or the like to the surfaces of the first left and right frames 44a, 44b and the partition frame 47 that define the base accommodating portion 50. The lower edges of the side walls 33b are close to or abut against the installation surface F.
[0041] 2, the left end portion of the first base portion 31 constitutes a corner portion 60 of the base leg 25 in a plan view. That is, the corner portion 60 is a portion of the first base portion 31 that overlaps with the second base portion 32 when viewed from the front-to-rear direction, and includes a portion to which the second base portion 32 is connected via the frame connecting portion 52.
[0042] Of the contact portions of the first base portion 31 with the installation surface F, the portion located to the right of the corner portion 60 constitutes the first contact portion 61 in this embodiment. Specifically, the first contact portion 61 is the portion of the lower surface of the inner frame 41 and the lower edge of the frame cover 42 located to the right of the corner portion 60. The portion of the second base portion 32 that comes into contact with the installation surface F (the portion of the base leg 25 that is located forward of the corner portion 60) constitutes the second grounding portion 62 in this embodiment. Specifically, the second grounding portion 62 is the lower surface of the frame main body 51.
[0043] Of the contact portions of the first base portion 31 with the installation surface F, the portions located at the corner portions 60 constitute corner contact portions 63 in this embodiment. The corner contact portions 63 are portions of the contact portions of the first base portion 31 with the installation surface F other than the first contact portions 61, and are portions of the lower surface of the inner frame 41 and the lower edge of the frame cover 42 located at the corner portions 60. In this embodiment, the base leg 25 is formed in an L-shape in plan view, and grounding portions are provided on each side and on the corner portion 60. Specifically, the base leg 25 has a corner grounding portion 63 provided on the corner portion 60, a first grounding portion 61 provided on a portion located to the right of the corner portion 60, and a second grounding portion 62 provided on a portion located in front of the corner portion 60.
[0044] 3 and 4, the support column 26 extends upward from the base 33 and supports the top panel 21 so that the top panel 21 can be raised and lowered. The support column 26 includes a lower flange 26a, a lifting unit 26b, and an upper flange 26c. The lower flange portion 26a is a plate material having a rectangular shape in a plan view. The lower flange portion 26a is superimposed on the upper wall 33a from above. The lower flange portion 26a is fastened to the upper wall 33a with screws or the like. In other words, the support portion 26 is supported on the installation surface F via the corner grounding portions 63.
[0045] Lifting unit 26b extends upward from lower flange 26a. Lifting unit 26b has a common vertical axis and is configured with a plurality of legs with different outer shapes in a plan view, nested together. With the bottom end of the leg with the largest outer shape fixed to lower flange 26a, for example, lifting unit 26b expands and contracts in the vertical direction as the plurality of legs move relative to one another in the vertical direction (a so-called telescopic structure).
[0046] The upper flange portion 26c is fixed to the upper end of the leg tube that has the smallest outer diameter among the leg tubes that make up the lifting unit 26b. The upper flange portion 26c is a plate material that is rectangular in plan view, similar to the lower flange portion 26a. The upper flange portion 26c is fixed to the underside of the tabletop 21. That is, the tabletop 21 rises and falls in accordance with the extension and retraction of the lifting unit 26b.
[0047] Here, in the left-right direction, upper flange portion 26c is fixed to an area located on the left side of the center of table top 21. Therefore, table top 21 is supported in a cantilevered manner toward the right from support column 26. In other words, the distance from upper flange portion 26c to the left edge of table top 21 is shorter than the distance from upper flange portion 26c to the right edge of table top 21. Furthermore, in the front-rear direction, upper flange portion 26c is fixed to an area including the center of table top 21.
[0048] 3 and 6, the auxiliary portion 27 supports the support portion 26. The auxiliary portion 27 includes an upright stay 65 and a surrounding stay 66. The upright stay 65 extends vertically along the support column 26 on the left side of the support column 26. The upright stay 65 is formed in a C-shape that opens toward the left side in a plan view. The lower end of the upright stay 65 is fixed by welding or the like to a portion of the inner frame 41 located on the left side of the support column 26 (the first left and right frames 44a, 44b and the end frame 48).
[0049] The surrounding stay 66 protrudes to the right from the upper end of the standing stay 65. In a plan view, the surrounding stay 66 is formed in a C-shape that opens to the left. The surrounding stay 66, together with the standing stay 65, surrounds the periphery of the lifting unit 26b. The surrounding stay 66 is fixed to the leg tube with the largest outer diameter among the leg tubes that make up the lifting unit 26b.
[0050] <Storage fixture 11> 1, the storage fixture 11 has a function of covering a part of the support structure 22 and storing items. The storage fixture 11 includes a housing 80, a partition plate 81, and a closing plate 82. The housing 80 is formed in a box shape that opens to the right, for example, and includes a bottom wall 91, a front wall 92, a rear wall 93, a left wall 94, and a top wall 95. As shown in FIGS. 1, 2, and 5, the bottom wall 91 is formed in a rectangular shape with its longitudinal direction extending in the front-to-rear direction and its transverse direction extending in the left-to-right direction in a plan view. The bottom wall 91 is superimposed on the base legs 25. As shown in FIG. 5, a through-hole 91a is formed in the rear end of the bottom wall 91 at a portion that overlaps with the support member 26 and the auxiliary member 27 in a plan view. With the support member 26 and the auxiliary member 27 passing through the through-hole 91a, the rear end of the bottom wall 91 is superimposed on a portion of the upper surface of the inner frame 41 that is exposed through the recess 42c at the corner portion 60. The rear end of the bottom wall 91 may be fixed to a portion of the inner frame 41 that supports the bottom wall 91 with a screw or the like.
[0051] FIG. 7 is a cross-sectional view taken along line VII-VII in FIG. As shown in FIGS. 2 and 7 , the front portion of the bottom wall 91 is superimposed on the second base portion 32. Therefore, the second base portion 32 is covered from above by the bottom wall 91. The front portion of the bottom wall 91 is fixed to the frame body 51 with screws or the like. An adjuster 98 is provided on the bottom wall 91 at a position that does not overlap with the base leg 25 in a plan view. In other words, the storage fixture 11 is in contact with the installation surface F via the base leg 25 or the adjuster 98. Note that a baseboard member 99 that protrudes downward is provided on, for example, the front end of the bottom wall 91. The baseboard member 99 fills the gap between the underside of the bottom wall 91 and the installation surface F, thereby preventing the adjuster 98 and the second base portion 32 from being exposed. The baseboard member 99 extends along the front edge of the bottom wall 91.
[0052] The front wall 92 extends upward from the front end of the bottom wall 91 . The rear wall 93 extends upward from the rear end of the bottom wall 91 . The left wall 94 extends upward from the left end of the bottom wall 91 and bridges between the front wall 92 and the rear wall 93.
[0053] The top wall 95 faces the bottom wall 91 in the up-down direction. The top wall 95 is supported by a front wall 92, a rear wall 93, and a left wall 94. A through-hole 95a is formed in the top wall 95 at a position that overlaps with the support column 26 in a plan view. The support column 26 protrudes upward beyond the top wall 95 through the through-hole 95a.
[0054] The partition plate 81 is provided in a portion located forward of the support column 26. The partition plate 81 is supported by a bottom wall 91, a left wall 94, and a top wall 95. The partition plate 81 separates the interior of the housing 80 into a space located forward of the support column 26 (item storage space S1) and a portion located rearward of the support column 26 (mechanism storage space S2). Note that the item storage space S1 may be provided with a drawer, a door, or the like.
[0055] The closing plate 82 is supported by the bottom wall 91, the rear wall 93, the top wall 95, and the partition plate 81. The closing plate 82 closes the opening of the mechanism storage space S2 among the openings of the housing 80. As a result, the inside of the mechanism storage space S2 is surrounded by the storage fixtures 11 so that it cannot be seen.
[0056] As described above, the fixture 1 with a top plate of this embodiment comprises a support structure 22, and a top plate 21 formed such that the longitudinal direction is the front-to-back direction (first direction) and the transverse direction is the left-to-right direction (second direction) of two directions intersecting the vertical direction, and supported from below by the support structure 22. The support structure 22 has a first ground contact portion (ground contact portion) 61 that is immovably placed on the installation surface F, and is formed such that the first direction is the longitudinal direction and the second direction is the transverse direction, and comprises a first base portion (base portion) 31 that extends upward from the left end portion (first side end portion) of the first base portion 31 and supports the left end portion of the top plate 21. With this configuration, the first base portion 31 is in contact with the installation surface F via the non-rollable first contact portion 61, which makes it easy to ensure frictional force acting between the installation surface F and the first base portion 31 (first contact portion 61). Therefore, even if a large load acts on the connecting portion of the first base portion 31 with the support column 26 in a direction that pulls up the first base portion 31 due to the top plate 21 being supported in a cantilevered manner, such as when the top plate 21 is supported in a cantilevered manner by the support column 26, the first base portion 31 can easily exert resistance to the load. This allows for stable installation even for a top-mounted fixture 1 that includes, for example, a large or heavy top plate 21.
[0057] In the tabletop-equipped furniture 1 of this embodiment, the ground contact portions 61 to 63 are configured to be provided across the entire area of the first base portion 31 in the left-right direction. This configuration makes it easy to ensure the frictional force acting between the installation surface F and the first base portion 31. Therefore, the furniture unit with top panel 1 can be installed more stably.
[0058] In the fixture 1 with a top plate of this embodiment, the first base portion 31 (internal frame 41 and frame cover 42) is configured to be formed by bending a plate material that is thinner than the height of the first base portion 31 in the vertical direction. With this configuration, it is easier to ensure the bending rigidity of the first base portion 31 compared to when the base portion is formed in a solid shape with a thickness equivalent to the height of the first base portion 31. This makes it easier for the first base portion 31 to exert resistance to the load of the tabletop 21.
[0059] In the fixture 1 with a top panel of this embodiment, the first base portion 31 is configured to include first left and right frames 44a, 44b formed in a rectangular cylindrical shape extending in the left-right direction, and a side frame 45 (first cylindrical portion). According to this configuration, it is easy to ensure the bending rigidity of the first base portion 31, and therefore it is easy for the first base portion 31 to exert resistance to the load of the top plate 21. In addition, since the square tube member itself is a general-purpose product, it is possible to reduce manufacturing costs.
[0060] In the display unit 1 with a top plate of this embodiment, the first base portion 31 is formed in a rectangular cylindrical shape extending in the front-to-rear direction, and is configured to include a first front-to-rear frame 46 connected to the first left and right frames 44a, 44b, and a partition frame 47 (second cylindrical portion). With this configuration, the first left and right frames 44a, 44b are connected to each other by the first front and rear frames 46 and the partition frame 47, which makes it easy to ensure torsional rigidity in the first base portion 31 (internal frame 41). As a result, the tabletop-equipped furniture 1 can be installed stably not only in the bending direction of the tabletop 21 but also in the twisting direction.
[0061] In the display unit 1 with a tabletop of this embodiment, the first base portion 31 is configured to include an internal frame 41 having ground contact portions 61 to 63, and a frame cover 42 that covers the internal frame 41 from above and is fixed to the internal frame 41. According to this configuration, the inner frame 41 is covered with the frame cover 42, thereby improving the aesthetic appearance of the first base portion 31. Furthermore, since the frame cover 42 is fixed to the inner frame 41, it is easy to ensure the bending rigidity of the first base portion 31.
[0062] In the fixture 1 with a top plate of this embodiment, the frame cover 42 is configured to include an upper plate portion 42a that overlaps the internal frame 41 when viewed in a plane, and a pair of side plate portions (front wall portion 42b1 and rear wall portion 42b2) that extend downward from both front-to-rear end edges of the upper plate portion 42a. This configuration makes it easy to ensure the bending rigidity of the frame cover 42.
[0063] In the fixture 1 with a top plate of this embodiment, the front wall portion 42b1 and the rear wall portion 42b2 of the frame cover 42 are configured to extend at an incline downward as they move away from the upper plate portion 42a in the front-rear direction. According to this configuration, when the user uses the tabletop 21 with the user positioned in front or behind the tabletop 21, the user's feet are less likely to get caught on the front wall portion 42b1 or the rear wall portion 42b2 of the frame cover 42.
[0064] In the furniture with a top panel 1 of this embodiment, the internal frame 41 is configured to be formed by combining square tubular members. This configuration makes it easy to ensure the bending rigidity of the inner frame 41.
[0065] In the display unit 1 with a tabletop of this embodiment, the dimension D2 of the first base portion 31 on the rear side (first side in the second direction) of the imaginary line L is smaller than the dimension D1 on the front side (second side in the second direction) of the imaginary line L. According to this configuration, the first base portion 31 is formed asymmetrically in the front-to-back direction with respect to the imaginary line L. As a result, it is easier to secure the space below the tabletop 21 that is located in front of the imaginary line L than the space that is located behind the imaginary line L. For example, by using the tabletop-equipped furniture unit 1 so that the main user is positioned in front of the tabletop 21 and the secondary user is positioned behind the tabletop 21, it is easy to secure space for the main user's lower legs.
[0066] (Other variations) Although the preferred embodiments of the present invention have been described above, the present invention is not limited to these embodiments. Addition, omission, substitution, and other modifications of the configuration are possible without departing from the spirit of the present invention. The present invention is not limited by the above description, but is limited only by the appended claims. In the above-described embodiment, the support columns 26 are configured to extend and retract in the vertical direction, thereby allowing the tabletop 21 to move up and down, but this is not a limitation. The mounting position of the tabletop 21 relative to the support columns 26, which do not extend and retract in the vertical direction, may be configured to be changeable, for example, in the front-to-back or left-to-right direction. Furthermore, the height of the tabletop 21 in the vertical direction may not be changeable.
[0067] In the above-described embodiment, the base leg 25 has been described as having a configuration including the first base portion 31 and the second base portion 32, but the present invention is not limited to this configuration. The base leg 25 only needs to have at least the first base 31. Furthermore, the shape of the first base portion 31 in a plan view may be larger or smaller than the top plate 21, with the left-right direction (first direction) being the longitudinal direction. In the above-described embodiment, an example was given of a configuration in which a desk fixture 10 and a storage fixture 11 are combined as a tabletop-equipped fixture 1, but the storage fixture 11 is not a required component. Furthermore, the fixture with a top 1 is not limited to the desk fixture 10, but may be any other fixture with a top, such as a shelf or a cart device.
[0068] In the above-described embodiment, the first base portion 31 has been described as having a configuration in which the entire lower surface of the inner frame 41 is in contact with the installation surface F, but the present invention is not limited to this configuration. The first base portion 31 may also be configured to be in contact with the installation surface F intermittently. In the above-described embodiment, the inner frame 41 and the frame cover 42 constituting the first base portion 31 are both configured to be hollow and formed by bending a plate material, but the present invention is not limited to this configuration. The first base portion 31 may also be formed to be solid. In the above-described embodiment, the first base portion 31 is described as having the internal frame 41 and the frame cover 42, but is not limited to this configuration. The first base portion 31 may be configured to have, for example, one of the internal frame 41 and the frame cover 42. For example, the first base portion 31 may be configured such that a rib protrudes from the inner surface of the frame cover 42. In this case, it is desirable that the lower surface of the rib be in contact with the installation surface F.
[0069] In addition, within the scope of the spirit of the present invention, it is possible to replace the components in the above-described embodiments with well-known components as appropriate, and the above-described modified examples may be combined as appropriate. [Explanation of symbols]
[0070] 1: Display unit with top 21: Top plate 22: Support structure 26: Strut part 31: First base part (base part) 41: Internal frame 42: Frame cover 42a: Upper plate 42b: Side plate part 44a, 44b: First left and right frames (first cylindrical portion, square cylindrical member) 45: Side frame (first cylindrical part, square cylindrical part) 46: First front and rear frame (second cylindrical part, square cylindrical member) 47: Partition frame (second cylindrical part, square cylindrical member) 48: End frame (second cylindrical part, square cylindrical member) 49: Connecting frame (second cylindrical part, square cylindrical member) 61: 1st grounding part (grounding part) F: Installation surface
Claims
1. a support structure; a top plate that is formed such that a first direction is a longitudinal direction and a second direction is a lateral direction of two directions that intersect with the vertical direction, and that is supported from below by the support structure; The support structure includes: a base portion having a grounding portion that is in contact with an installation surface and is non-rollable, the base portion being formed with the first direction as a longitudinal direction and the second direction as a lateral direction; A display unit with a tabletop comprising: a support portion that extends upward from a first side end portion of the base portion in the first direction and supports the first side end portion of the tabletop in the first direction.
2. The display unit with a top plate according to claim 1, wherein the grounding portion is provided over the entire area of the base portion in the first direction.
3. 3. The display unit with a top plate according to claim 1 or claim 2, wherein the base portion is formed by bending a plate material that is thinner than the height of the base portion in the vertical direction.
4. The display unit with a top plate according to claim 3, wherein the base portion has a first cylindrical portion formed in a square cylindrical shape extending in the first direction.
5. The display unit with a top plate as described in claim 4, wherein the base portion is formed in a rectangular cylindrical shape extending in the second direction and has a second cylindrical portion connected to the first cylindrical portion.
6. The base portion is an inner frame provided with the grounding portion; 2. The display unit with a top plate according to claim 1, further comprising a frame cover that covers the internal frame from above and is fixed to the internal frame.
7. The frame cover is an upper plate portion that overlaps the internal frame in a plan view; A display unit with a top plate as described in claim 6, further comprising a pair of side plate portions extending downward from both end edges of the upper plate portion in the second direction.
8. The display unit with a top plate according to claim 7, wherein the side plate portions extend at an inclination downward as they move away from the top plate portion in the second direction.
9. The display unit with a top plate according to any one of claims 6 to 8, wherein the internal frame is formed by combining square tubular members.
10. A display unit with a tabletop as described in claim 1 or claim 2, wherein the dimension of the base portion on a first side in the second direction relative to the center of the tabletop in the second direction is smaller than the dimension of the second side in the second direction.
Citation Information
Patent Citations
Method of treating waste water
JP1979079952A