Stacking type base

Abstract

To provide a stacking type base in which a damage of a top plate when stacked can be prevented and a size or a shape of the top plate can be substantially freely changed by arranging a plurality of top plates.SOLUTION: Support legs 13, 13 are stored in the inside of a top plate 3 in a front and rear direction of the top plate 3, and therefore, by attaching side edges 5 of each of four top plates 3, 3, 3, 3, excluding a corner portion 3a, with no gap, the top plates can be used substantially as one large top plate having a size of four times the size of one top plate 3. When desks 1, 1, ... are stacked in a vertical direction, a reception surface of a reception part 33 of the desk 1 stacked in an upper side planarly contacts a front side edge 5a of the top plate 3 of the desk 1 in a lower side. A cushion sheet 35 is attached to the reception surface as a buffer material. Accordingly, even when the desk 1 in the upper side is stacked vigorously, the top plate 3 in the lower side is hard to be damaged.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to stackable tables. [Background technology]

[0002] There are stacking types of tables, desks, and other surfaces that can be stacked with the top surfaces of the tables stacked vertically, allowing multiple tables to be stored compactly and space-savingly when not in use. For example, the table described in Patent Document 1 has support legs attached to each of the four corners of a rectangular tabletop, and each support leg stands perpendicular to the tabletop at a position that protrudes outward in the planar direction of the tabletop, making it possible to stack the tables. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2016-83239 Summary of the Invention [Problem to be solved by the invention]

[0004] With conventional systems, when tables are stacked, the support legs of the upper table often damage the top of the lower table. Furthermore, if multiple tables of the same height can be placed side by side with their tops on a common plane, it will essentially become a large tabletop. In this way, if multiple tables can be combined as one piece, they can be used to create tables of various sizes. Moreover, we would like to take advantage of the advantage of being able to store it compactly when not in use.

[0005] To provide a user-friendly stacking table that has been made in response to the above-mentioned conventional problems and that can prevent scratches on the top plate when stacked while taking advantage of the advantage of being able to be stored compactly, and that can essentially freely expand or change the size of the top plate according to the type of work by combining multiple tables. [Means for solving the problem]

[0006] The present invention has been made in response to the above-mentioned problems of the prior art, and comprises a rectangular flat tabletop and shaft-like support legs that lift and support the tabletop at each of the four corners, the support legs being divided into two sets, one near the front edge and one near the rear edge of the tabletop, with a pair of support legs facing each other on the left and right edge sides of the tabletop, and in a plan view, both support legs of the set of support legs near the front edge are housed inside the tabletop, and the set of support legs near the rear edge protrude outward in the left and right directions, with one support leg being located closer to the corner near the rear edge than the other support leg, and This is a stacking table in which a receiving part is installed between a pair of support legs closest to the rear edge, and when lined up left and right, the right support leg of the left-side table, of the pair of support legs that protrude outward near the rear edge, is lined up in the front-to-back direction with the left support leg of the right-side table, so that the front edges and rear edges of the tabletops of the two tables are aligned flush with each other, and the right edge of the tabletop of the left table and the left edge of the tabletop of the right table can be aligned without any gaps, and when stacked vertically, the front edge of the tabletop of the lower table is supported in a flat receiving surface by the flat receiving surface of the receiving part of the upper table.

[0007] Preferably, a cushion sheet is attached to the receiving surface of the receiving portion. Preferably, the support legs are fitted with casters with stoppers. Preferably, the support legs are formed from a portion of the bent metal pipe, and the mounting plate is welded to the other portion and fixed to the top plate by screws, so that it can be assembled using a knock-down method. [Effects of the Invention]

[0008] The stacking table of the present invention makes it difficult for the tops of the lower tables to be damaged when multiple tables are stacked on top of each other. In addition, since multiple tables can be placed side by side with their tops on a common plane without any gaps, each table can be used as a single piece, making it possible to use it as tables of various sizes. Moreover, when not in use, the advantage of being able to be stored compactly is still utilized. [Brief explanation of the drawings]

[0009] [Figure 1] 1 is a perspective view of a stacking desk according to an embodiment of the present invention. [Figure 2] FIG. 2 is a perspective view of the desk of FIG. 1 as seen from below. [Figure 3] 2A and 2B are bottom, front, right side, and rear views of the desk of FIG. 1. [Figure 4] FIG. 2 is a plan view of four desks in FIG. 1 arranged side by side. [Figure 5] FIG. 5 is a front view of the arrangement shown in FIG. 4. [Figure 6] FIG. 2 is a perspective view of four desks of FIG. 1 stacked together. [Figure 7] 7A and 7B are front and right side views of the stacked state of FIG. 6. DETAILED DESCRIPTION OF THE INVENTION

[0010] A stackable desk 1 for one person used for training (hereinafter referred to as "desk 1") according to an embodiment of the present invention will be described with reference to the drawings. For ease of explanation, the directions indicated by the arrows along with the desk 1 in FIG. 1 are the up-down, front-rear, left-right directions of the desk 1. As shown in FIGS. 1 to 3, the desk 1 comprises a rectangular flat top 3 and four shaft-like support legs 13, 13, 19, 19 that lift and support the top 3 on each of the four corners. The tabletop 3 is made of melamine resin decorative board, and its dimensions are 595 mm (width: left and right direction) x 20 mm (thickness: up and down direction) x 445 mm (length: front and back direction), and the surface of the board is rectangular with its longer side in the left and right direction. In addition, its four corners 3a, 3a, 3a, 3a are rounded. The four edges 5 corresponding to the thickness of the top plate 3 are a front edge 5a, a rear edge 5b, a left edge 5c, and a right edge 5d.

[0011] Of the front surface 3b and back surface 3c of this tabletop 3, pipes 7, 17, 17 are attached to the back surface 3c. These pipes 7, 17, 17 are all thicker than the pipes used as support legs for conventional stackable types, measuring Φ22.2, and are made of iron pipes with a melamine resin baked finish. The pipe 7 is bent almost vertically at two points along its length, forming a roughly U-shape in plan view. On either side of the bent section are two equal-length end sections 7a, 7a, with an intermediate section 7b in between. One edge of a thin, rectangular, flat metal mounting plate 9 is welded along its entire length to the outer periphery of the intermediate section 7b, located inward of the bent section.

[0012] The pipe 7 is attached along the rear edge 5b with both ends 7a, 7a perpendicular to the back surface 3c of the top plate 3 and the middle part 7b in contact with the back surface 3c, and the mounting plate 9 is in a state where it overlaps the back surface 3c in a planar manner. A through hole is formed in the mounting plate 9, and a countersunk nut (not shown) is fitted on the back surface 3c side, and since the through hole communicates with the countersunk nut when the mounting plate 9 is overlapped on the back surface 3c as described above, a truss screw 11 can be passed through the through hole and screwed into the countersunk nut. A plurality of through holes are formed in the mounting plate 9, and a plurality of countersunk nuts are fitted on the back surface 3c side corresponding to each of the through holes, and by screwing a truss screw 11 into each of them, the pipe 7 is stably fixed to the top plate 3 in the overlapping state described above.

[0013] The pipe 7 is located near the rear edge 5b of the table top 3 and straddles the back surface 3c at a slight angle relative to the rear edge 5b, with both ends extending outward in the left and right directions from the left and right edges 5c and 5d of the table top 3, respectively, and the ends of the bent portions hanging down. The support leg 13 is composed of the protruding portion 13a, the bent portion 13b, and the hanging portion 13c, which forms the leg body 13c. In the bottom view of FIG. 3, the support legs 13, 13 appear to protrude outward in the left and right directions from the top board 3. Since the middle portion 7b is inclined downward to the left relative to the rear edge 5b, the protruding portion 13a of the left support leg 13 is located closer to the corner 3a of the rear edge 5b than the protruding portion 13a of the right support leg 13.

[0014] A caster 15 is attached to the end of the leg body 13c that faces the ground. This caster 15 can also rotate horizontally, allowing the wheel 15a to rotate 360°. A stopper 15b is also provided, which can simultaneously lock the rotation and rotation of the wheel 15.

[0015] Pipe 17 is bent almost vertically midway, forming an approximately "L" shape. One side of the bent part is support leg 19, and the other side is connecting part 21. One edge of thin, rectangular, flat metal mounting plate 23 is welded to the outer periphery of connecting part 21 along its entire length, forming an integral part. One of the pipes 17 is attached along the left edge 5c with its support legs 19 perpendicular to the back surface 3c of the tabletop 3 and its connecting parts 21 in contact with it, and the mounting plate 23 is in a state of being flush with the back surface 3c. Similarly, the other pipe 17 is attached along the right edge 5d with its support legs 19 perpendicular to the back surface 3c of the tabletop 3 and its connecting parts 21 in contact with it, and the mounting plate 23 is in a state of being flush with the back surface 3c.

[0016] In this way, the two pipes 17, 17 are attached symmetrically on the left and right, and each of the attachment plates 23, 23 is positioned between the opposing connecting portions 21, 21. Like the mounting plate 9, the mounting plate 23 is stably fixed to the top plate 3 by screws using through holes formed on the mounting plate 23 side and countersunk nuts fitted on the back surface 3c side. At this time, the tip opening of the pipe 17 forming the connecting portion 21 is close to the pipe 7 and is fixed at a sufficient length. The bent portions are contained within the top plate 3. Therefore, in the bottom view of Figure 3, all of the support legs 19, 19 are contained within the top plate 3, the left connecting portion 21 extends substantially parallel to the left edge 5c, and the right connecting portion 21 extends substantially parallel to the right edge 5d, and the respective bent portions are located near the corners 3a, 3a.

[0017] The mounting plate 23 is not provided over the entire length of the connecting portion 21 but is provided near the bent portion. A synthetic resin receiving portion 25 is attached to the portion of pipe 17 where mounting plate 23 is attached. This receiving portion 25 is block-shaped, and the upper surface of receiving portion 25 is curved, embracing the lower semicircular arc portion of pipe 17 from below to form one piece with pipe 17. The lower side of receiving portion 25 forms a receiving surface, which is approximately parallel to back surface 3c. A cushion sheet 27 is attached to this receiving surface so that it can absorb impacts from below. Two receiving portions 25, 25 are provided along both ends of the mounting plate 23 in the front-rear direction.

[0018] A caster 15 is also attached to the end of the support leg 19 on the ground side.

[0019] Furthermore, insert fittings 29, 29 are attached to both the left and right sides of the mounting plate 9. The insert fittings 29 have a square Ω cross section and are long in the front-to-rear direction, and are composed of a hollow portion 29a and mounting plates 29b, 29b. The hollow portion 29a is sized to allow the pipe 17 to be inserted therein. The mounting plates 29b, 29b are fixed to the back surface 3c with the same screws as the mounting plate 9. The length of the mounting plate 29b of the insert fitting 29 in the front-to-rear direction is approximately the same as the length of the mounting plate 9 in the front-to-rear direction. The mounting plate 9 is not located at the end of the intermediate portion 7b, and the insert fittings 29 are located close to the end of the intermediate portion 7b. When the connecting portion 21 side of the pipe 17 is attached to the rear surface 3c of the top plate 3 as described above, the tip of the pipe 17 is first inserted into the hollow portion 29a of the insert fitting 29, and then fixed with a screw. The insertion fitting 29 conceals the opening at the tip of the pipe 17 .

[0020] A rectangular panel 31 is fitted between the support legs 19, 19 of the pipes 17, 17. This panel 31 is composed of a flat plate similar to the mounting plate 23, and its three edges form band-shaped flaps. The flaps along the upper edge and the flaps along the left and right edges are each folded almost vertically toward the same plate surface at the boundary with the panel 31, forming overlapping portions 31a, 31b, 31b with an L-shaped cross section. Similarly, the flap along the lower edge is folded almost vertically toward the same plate surface at the boundary with the panel 31, and the edge is further folded almost parallel to the plate surface to form a folded portion 31c with a J-shaped cross section.

[0021] A panel 31 is fitted between the support legs 19 with its surface facing the front-to-rear direction, with the overlapping portion 31a abutting the back surface 3c and the overlapping portions 31b, 31b abutting the outer peripheral surfaces of the left and right support legs 19, 19, respectively. The support legs 19, 19 are tapped directly, and holes are drilled in the overlapping portions 31b, 31b. After aligning the hole positions of the overlapping portions 31b, 31b with the support legs 19, 19, they are temporarily fastened with truss screws. After that, the overlapping portion 31a is aligned with the pilot hole position on the back surface 3c of the top plate 3, and then attached with truss tapping. Finally, each of the temporarily fastened screws is firmly tightened. By this fixing, the lower flat surface of the return portion 31c becomes the lower edge of the header board 31.

[0022] Reference numeral 33 denotes a receiving portion. This receiving portion 33 is composed of an angle bar formed by bending a thin, strip-shaped metal plate almost vertically. One piece is connecting piece 33a, whose front-to-rear edge is welded to the back surface of the panel 31 to form an integrated unit, and it protrudes toward the rear. The other piece is receiving piece 33b, which extends upward from the bent part at the boundary with connecting piece 33a. The surface of receiving piece 33b facing rearward forms a receiving surface, which extends elongatedly at the same height in the left-to-right direction. Cushion sheets 35, 35 are attached to both left and right ends of this receiving surface to absorb impacts.

[0023] Reference numeral 37 denotes a hanging portion. The outline of this hanging portion 37 is formed from a single metal plate, and a J-shaped hook 37b is bent and raised from an attachment portion 37a. On the left side of one of the connecting portions 21, there is a gap between it and the left edge 5c of the tabletop 3, and the hanging portion 37 is fixed using this gap. The attachment portion 37a is aligned with the pilot hole position on the back surface 3c of the tabletop 3 and then attached using truss tapping. In this fixed state, the hook 37b rises from the inner end of the notch on the inside of the attachment portion 37a, and is contained within the tabletop 3 in a plan view.

[0024] The desk 1 is configured as described above, with the support legs 13, 13 arranged as a pair near the rear edge 5b, and the support legs 19, 19 arranged as a pair near the front edge 5a. The external dimensions are 695 mm (width: left-right direction) × 720 mm (height: up-down direction) × 445 mm (length: front-back direction), and the mass is 9.05 kg.

[0025] Figure 4 shows an example of four desks 1, 1, 1, 1 arranged in a 2 x 2 grid. In this case, in a plan view, the support legs 19, 19 of the desk 1 are contained within the tabletop 3, and the support legs 13, 13 each protrude outward in the left-right direction from the tabletop 3, but the protruding portions of the left-side support leg 13(L) and the right-side support leg 13(R) are offset in the front-to-back direction. Therefore, as shown in Figure 5, the right-side support leg 13(R) of the left-side desk 1 and the left-side support leg 13(L) of the right-side desk 1 are aligned in the front-to-back direction, with the support leg 13(R) recessed under the tabletop 3 of the right-side desk 1 and the support leg 13(L) recessed under the tabletop 3 of the left-side desk 1, respectively. Therefore, when adjacent desks 1, 1 are lined up in the left-to-right direction, the front edges 5a, 5a and rear edges 5b, 5b of the tabletops 3, 3 can be aligned flush, and the right edge 5d of the left-side desk 1 and the left edge 5c of the right-side desk 1 can be aligned.

[0026] Furthermore, since the support legs 13, 13 are contained inside the tabletop 3 in the front-to-back direction of the tabletop 3, when adjacent desks 1, 1 are lined up in the front-to-back direction, the left edges 5c, 5c and right edges 5d, 5d of each tabletop 3, 3 can be aligned flush, and the rear edge 5b of the front desk 1 can be aligned with the front edge 5a of the rear desk 1. Therefore, as shown in Figure 4, by fitting the edges 5 of the four tabletops 3, 3, 3, 3 together without any gaps except for the corners 3a, they can essentially be used as a large tabletop that is four times the size of a single tabletop 3. The hooks 37b are located below the tabletop 3 and do not intersect with the support legs 13, so they do not get in the way even when lined up as described above.

[0027] As shown in Figures 6 and 7, when the desks 1, 1, ... are stacked vertically, the receiving surface of the receiving portion 33 of the upper desk 1 comes into contact with the front edge 5a of the top plate 3 of the lower desk 1. Furthermore, a cushion sheet 35 is attached to this receiving surface as a shock absorber. Therefore, even if the upper desk 1 is stacked vigorously, the bottom tabletop 3 is less likely to be damaged. Furthermore, since cushion sheets 27 are attached to the support legs 19, 19 at the portions that come into contact with the surface 3b of the lower top plate 3, the lower top plate 3 is less likely to be scratched even when rubbed.

[0028] In this way, the desk 1 can prevent the top board 3 from being scratched when multiple desks are stacked, and by arranging multiple top boards 3 side by side, the size of the top board can be expanded or the arrangement can be freely adjusted, such as in an L shape, making it easy to use. Furthermore, the support legs 13, 13, 19, 19 are made up of pipes 7, 17, 17 with a larger diameter than conventional ones, and are themselves strong. The pipes 7, 17, 17 are firmly fixed to the top plate 3 via mounting plates 9, 23 and further via insert fittings 29, so the strength of the desk 1 as a whole is significantly increased. Furthermore, the wheels 15a of the casters 15 are swivelable and equipped with stoppers 15b, making it easy to move and fix, and setting up and putting away the desk 1 is easy, and there are no restrictions on the location or situation in which it can be set up.

[0029] Furthermore, the pipes 7, 17 that make up the support legs 13, 19 are fixed to the tabletop 3 with screws, so the tabletop 3 and the pipes 7, 17, 17 can be packaged and delivered separately and then assembled on-site by a knockdown method, which allows delivery costs to be reduced.

[0030] Although the embodiments of the present invention have been described in detail above, the specific configuration is not limited to these embodiments, and the invention also includes design changes within the scope of the present invention without departing from the gist of the present invention. For example, the size of the tabletop 3, the attachment positions of the support legs 13 and 19 to the tabletop 3, etc. can be freely designed as long as the functions envisioned by the present invention are ensured. [Explanation of symbols]

[0031] 1. Stackable desk 3…Top plate 3a…Corner 3b…Surface 3c...back surface 5a...anterior margin 5b...posterior margin 5c...Left edge 5d...Right edge 7...Pipe 7a...Both ends 7b...Middle part 9...Mounting plate 11... Truss screw 13... Support leg 13a... Projection part 13b...Bending part 13c...Script body (hanging part) 15... Caster 15a... Wheel 15b... Stopper 17...Pipe 19...Support leg 21...Connecting part 23...Mounting plate 25...Receiving portion 27...Cushion sheet 29...insertion fitting 29a...hollow portion 29b...mounting plate 31...Backboard 31a, 31b...Overlapped portion 31c... Return portion 33... Receiving portion 33a... Connecting piece 33b... Support piece 35... Cushion sheet 37...Hanging portion 37a...Mounting portion 37b...Hook

Claims

1. The table has a rectangular flat top plate and shaft-like support legs that lift and support the top plate at each of the square sides. The support legs are divided into two sets, one set facing the left edge side and the other set facing the right edge side of the tabletop, and one set facing the front edge side and the other set facing the rear edge side of the tabletop. A stacking table in which, in a plan view, both support legs of the pair of support legs closer to the front edge are accommodated inside the top plate, and the pair of support legs closer to the rear edge each protrude outward in the left and right directions, with one support leg being located closer to a corner closer to the rear edge than the other support leg, and a receiving portion is provided between the pair of support legs closer to the front edge, When they are lined up in the left-right direction, the right support leg of the table on the left side of the pair of support legs that protrude outward near the rear edge is aligned in the front-to-back direction with the left support leg of the table on the right side, so that the front edges and rear edges of the table tops of the two tables are aligned flush with each other, and the right edge of the table top on the left side and the left edge of the table top on the right side can be aligned without any gaps, This stacking table is characterized in that, when stacked vertically, the front edge of the top plate of the lower table is received by the flat receiving surface of the receiving part of the upper table.

2. 2. The stacking table according to claim 1, A stacking table characterized in that a cushion sheet is attached to the receiving surface of the receiving part.

3. 2. The stacking table according to claim 1, A stacking table characterized in that casters with stoppers are attached to the support legs.

4. 2. The stacking table according to claim 1, This stacking stand is characterized in that the support legs are made up of parts of bent metal pipes, and the mounting plate welded to the other parts is fixed to the top plate by screws, and can be assembled using a knock-down method.

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