Assembled furniture structures, posts, bars, structural plates and top members

Abstract

To construct high-strength assembly furniture by combining a relatively small number of parts. [Solution] An assembly furniture structure (1) includes a post (10), a bar (20), a joint (30), and a substantially rectangular structural board (40). The post (10) has a plurality of second holes (15), and the bar (20) has a third hole (25) for fixing the structural board (40). The joint (30) can be fixed to the post (10) with a screw, and the bar (20) can be fixed to the joint (30) while being positioned so as to cover the joint (30) fixed to the post (10). The structural board (40) has bent portions (43, 44) that are formed with board fixing holes, which are through holes into which screws can be placed, so that the three bent portions (43, 44) can be screwed into the third holes (25) when the structural board (40) is positioned as a shelf board, and the three bent portions (43, 44) can be screwed into the second holes (15) and the third holes (25) when the structural board (40) is positioned as a back board.

Description

[Technical Field]

[0001] The present invention relates to an assembly furniture structure formed by combining posts, bars, and structural boards, and to the posts, bars, structural boards, and top member. [Background technology]

[0002] 2. Description of the Related Art Conventionally, knockdown furniture that can be constructed by assembling several components has become widespread. Knockdown furniture has an attractive advantage, for example, in that the components can be easily transported and assembled on site.

[0003] Patent Document 1 below shows an assembly structure for furniture that uses connecting members for connecting long members together. By using such connecting members, it is possible to connect the members together in the vertical direction. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 2024-033088 Summary of the Invention [Problem to be solved by the invention]

[0005] Incidentally, it is preferable to use fewer types of parts when constructing the above-mentioned knockdown furniture in terms of manufacturing and management costs. Also, it is preferable for knockdown furniture to have higher strength.

[0006] An object of the present invention is to provide a knockdown furniture structure, posts, bars, structural plates and top members that can be assembled to form knockdown furniture having high strength by combining a relatively small number of parts. [Means for solving the problem]

[0007] The assembly furniture structure of the first invention comprises at least four posts used in a substantially vertical position, at least four bars used in a substantially horizontal position, eight or more joints formed in a substantially quadrangular prism shape for assembling the posts and the bars, and at least one substantially rectangular structural board having four bending portions that bend from each side to follow the bar or post, the posts are provided with a plurality of post fixing portions each having a first hole portion with a screw hole for fixing the joint and a second hole portion with a screw hole provided near the first hole portion, and the bars are provided with a bar fixing hole which is a through hole provided near the end and a third hole portion with a screw hole for fixing the structural board. the joint has a joint hole portion with a screw hole formed on at least one side surface, the joint can be fixed to the post fixing portion of the post with a screw, the bar can be fixed to the joint with a screw passing through the bar fixing hole while being arranged so as to cover the joint fixed to the post, and the folding portion of the structural board is formed with board fixing portions having board fixing holes that are through holes through which screws can be placed, so that when the structural board is arranged as a shelf board, the three folding portions can each be screwed to the third hole portion, and when the structural board is arranged as a back board, the three folding portions can each be screwed to the second hole portion and the third hole portion,

[0008] With this configuration, high strength can be achieved by using the structural board as the back panel, and the structural board can be used in common as both the shelf board and the back panel, allowing for standardization of parts.

[0009] Furthermore, the assembly furniture structure of the second invention differs from the first invention in that it includes an angle member that can be fixed to the location where the post and bar are fixed and supports the bar against the post, the joint hole portion is provided on three of the four sides of the joint, the bar fixing hole is formed on the side of the bar, and the end of the bar is provided with a notch that exposes the underside of the joint, and the angle member is configured so that it can be screwed into both the joint hole portion on the underside of the joint and the second hole portion provided below the first hole portion in the post fixing portion.

[0010] With this configuration, the angle member can more reliably support the position of the bar relative to the post, thereby achieving high strength.

[0011] In addition, the assembly furniture structure of the third invention is an assembly furniture structure in which, unlike the second invention, the portion of the angle member facing the lower surface of the joint is configured to be housed in a cutout portion.

[0012] With this configuration, the aesthetic appeal of the furniture is less likely to be impaired even when angle members are attached.

[0013] Furthermore, in the assembly furniture structure of the fourth invention, compared to the second invention, the structural board has, as folding portions, two first folding portions that respectively fold from two first opposite sides and two second folding portions that fold from two second opposite sides, each of the two first folding portions having a cutout near the end closest to one of the two second opposite sides, and the two second folding portions each having a cutout near both ends, so that when the structural board is placed as a backboard, the areas near the joint holes and second holes to which angle members can be attached are exposed and not covered by the folding portions of the structural board.

[0014] With this configuration, the structural board can be used as a back panel with the angle members attached, thereby increasing the strength of the furniture.

[0015] In addition, the assembly furniture structure of the fifth invention is an assembly furniture structure in which, compared to the first invention, the bar is provided with a fourth hole portion having a screw hole for attaching the joint, and the third hole portion is provided in the vicinity of the fourth hole portion.

[0016] With this configuration, joints can be attached to the bar as well, allowing it to be combined with other bars, making it possible to create knockdown furniture for a wider variety of uses.

[0017] Furthermore, in contrast to the first invention, the assembly furniture structure of the sixth invention is an assembly furniture structure in which, when the position where the central axis of the post or bar to which the joint is attached intersects with the central axis of the joint when the post, bar, joint and structural board are assembled as components that can be assembled to each other is called the reference position, the distance between the reference position on the post and the second hole portion, the distance between the reference position on the bar and the third hole portion, and the distance between the reference position on the structural board and the board fixing portion are configured to be approximately the same.

[0018] This configuration increases the versatility of the layout of each component, allowing a wider variety of assembled furniture to be constructed using a limited number of components.

[0019] Furthermore, the assembly furniture structure of the seventh invention is an assembly furniture structure in which, compared to the sixth invention, four bars are arranged at the same height between four posts so that the posts form a rectangle in plan view, with the posts being the vertices, and of these, two bars forming opposite sides in plan view have a length that is approximately twice the specified reference length, and the dimension from each end of the bars to the reference position corresponding to each third hole portion is configured to correspond to the reference length.

[0020] This configuration allows a wider variety of assembled furniture to be constructed using a limited number of parts.

[0021] Furthermore, the assembly furniture structure of the eighth invention is an assembly furniture structure in which, compared to the seventh invention, two or more post fixing portions are arranged in the post so that they are aligned in the vertical direction, and the distance between each of the first hole portions corresponds to the reference length.

[0022] This configuration allows a wider variety of assembled furniture to be constructed using a limited number of parts.

[0023] Furthermore, the assembly furniture structure of the ninth invention is an assembly furniture structure in which, compared to the seventh invention, the two first opposite sides of the structural board have dimensions corresponding to the reference length, and the other two second opposite sides of the structural board have dimensions corresponding to an integer multiple of the reference length.

[0024] This configuration allows a wider variety of assembled furniture to be constructed using a limited number of parts.

[0025] Furthermore, in comparison with the ninth invention, the assembly furniture structure of the tenth invention is an assembly furniture structure in which the dimension of the second opposite side corresponds to the dimension obtained by multiplying the reference length by N and then multiplying the bar thickness dimension by a number obtained by subtracting 1 from N.

[0026] This configuration allows a wider variety of assembled furniture to be constructed using a limited number of parts.

[0027] Furthermore, the assembly furniture structure of the eleventh invention is different from the ninth invention in that the dimensions of the first opposite side and the second opposite side are slightly smaller than the lengths of the corresponding bars, and when the structural board is fixed with screws as a backboard or shelf board, the multiple bars or posts to which the structural board is fixed are configured to be attracted to each other due to the structural board being fixed.

[0028] With this configuration, force acts between the members to which the structural boards are fixed, making it possible to construct knockdown furniture with little rattle and high strength.

[0029] In addition, the assembly furniture structure of the twelfth invention is an assembly furniture structure in which, in contrast to the first invention, the posts and bars are square tubes and have the same outer dimensions and thickness.

[0030] This configuration allows assembly furniture of a wider variety of configurations to be constructed using a limited number of parts, and also enhances the aesthetic appeal of the assembled furniture.

[0031] Furthermore, the assembly furniture structure of the thirteenth invention is an assembly furniture structure that, in contrast to the first invention, comprises a support member that can be fixed together with the bar to the joint hole portion of the joint, and a top member that can be attached to the support member, and the top member is configured to cover a portion of the upper surface of each of the adjacent bars in a plan view.

[0032] With this configuration, it is possible to construct various types of knockdown furniture that have top members and have good appearances.

[0033] The fourteenth aspect of the present invention provides an assembly furniture structure comprising at least four posts used in a substantially vertical position, at least four bars used in a substantially horizontal position, eight or more joints formed in a substantially square prism shape for assembling the posts and the bars, and at least one substantially rectangular structural board having four bending portions that bend from each side along the bar or the post, the posts being provided with a plurality of post fixing portions each having a first fixing portion for fixing the joint and a second fixing portion provided in the vicinity of the first fixing portion, the bars being provided with bar fixing portions provided in the vicinity of their ends, and the structural board and a third fixing portion for fixing the joint, the joint having a joint hole portion formed on at least one side, the joint being configured to be fixable to the post fixing portion, the bar being fixable to the joint by the bar fixing portion with its end positioned to cover the joint fixed to the post, and the bending portions of the structural board are configured so that when the structural board is placed as a shelf board, the three bending portions can each be fixed to the third fixing portion, and when the structural board is placed as a back board, the three bending portions can each be fixed to the second fixing portion and the third fixing portion.

[0034] With this configuration, high strength can be achieved by using the structural board as the back panel, and the structural board can be used in common as both the shelf board and the back panel, allowing for standardization of parts. [Effects of the Invention]

[0035] According to the assembly furniture structure of the present invention, assembly furniture having high strength can be constructed by combining a relatively small number of parts. [Brief explanation of the drawings]

[0036] [Figure 1] FIG. 1 is a perspective view showing an assembly furniture according to a first configuration example using the assembly furniture structure according to the present embodiment. [Figure 2] FIG. 10 is a perspective view showing an assembly furniture according to a second configuration example using an assembly furniture structure. [Figure 3]FIG. 1 is a perspective view showing a basic configuration example of an assembly furniture structure according to an embodiment of the present invention; [Figure 4] Front view showing an example of a post [Figure 5] A front view showing an example of a bar [Figure 6] A bottom view showing an example of a bar [Figure 7] Perspective view showing the joint [Figure 8] FIG. 1 is a perspective view illustrating an assembly structure using a joint. [Figure 9] FIG. 10 is a perspective view illustrating the mounting structure of the angle member. [Figure 10] A perspective view showing a structural plate [Figure 11] A plan view showing an assembled furniture structure when the structural board is attached as a shelf board. [Figure 12] A front view showing an assembly furniture structure when a structural board is attached as a back board. [Figure 13] A perspective view showing an example of a large structural plate. [Figure 14] A perspective view showing an example of a long bar. [Figure 15] A perspective view showing an example of a long structure plate. [Figure 16] FIG. 1 is a perspective view showing an example of a fixing plate; [Figure 17] Diagram explaining types of posts [Figure 18] FIG. 1 is a plan view showing a top member; [Figure 19] Plan view of assembly furniture according to a second configuration example [Figure 20] Plan view of assembly furniture according to a third configuration example [Figure 21] 10 is a perspective view of an assembly furniture according to a fourth configuration example. [Figure 22] 10 is a perspective view of an assembly furniture according to a fifth configuration example. [Figure 23] 10 is a perspective view of an assembly furniture according to a sixth configuration example. [Figure 24] 10 is a perspective view of an assembly furniture according to a seventh configuration example. [Figure 25] 10 is a perspective view of an assembly furniture according to an eighth configuration example. DETAILED DESCRIPTION OF THE INVENTION

[0037] Hereinafter, embodiments of an assembly furniture structure and the like will be described with reference to the drawings. Note that, in the embodiments, components with the same reference numerals have the same or similar configurations, and therefore, repeated description may be omitted.

[0038] In the following description, coordinates shown in the drawings are common to all the drawings. The Z direction of the coordinate system is perpendicular to the horizontal plane. The X direction is perpendicular to the Z direction. The Y direction is perpendicular to the Z direction and perpendicular to the X direction. The Z direction is sometimes referred to as the up-down direction (the positive direction on the Z axis as viewed from the origin is up), the X direction is sometimes referred to as the front-to-back direction (the positive direction on the X axis as viewed from the origin is back), and the Y direction is sometimes referred to as the left-to-right direction (the positive direction on the Y axis as viewed from the origin is left). In the following, the shape and positional relationship of each part may be described using these directions, but the explicit indication of directions is merely for convenience of explanation and does not limit the orientation or posture of the structure, components, etc., of the present invention during use. Furthermore, expressions indicating directions and expressions indicating states such as horizontal, vertical, and orthogonal only indicate that they can be roughly understood as such and are not necessarily to be interpreted strictly as such.

[0039] (Embodiment)

[0040] The outline of this embodiment is as follows: The assembly furniture structure is constructed using members (components) such as posts, bars, joints, and approximately rectangular structural boards. The bars can be fixed to joints that are fixed to the posts. The posts and bars are provided with fixing parts that can be fixed to the bent parts on each side of the structural board. The structural board can be arranged as a shelf board or a back board. Whether the structural board is arranged as a shelf board or a back board, the three bent parts of the structural board are configured so that they can each be fixed to the fixing parts.

[0041] The knockdown furniture structure may further include angle members attached to the joints of the posts and bars to support the members.

[0042] The knockdown furniture structure may include a top member that is positioned on the top surface using support members attached to the bar.

[0043] The assembly furniture structure thus constructed will be described below.

[0044] It can be said that the assembly furniture structure is a structure used for assembly furniture that is made by assembling each member. Assembly furniture having such a structure itself can also be called an assembly furniture structure. Assembly furniture may have other members and components in addition to the members and components described below.

[0045] Fig. 1 is a perspective view showing an assembly furniture 101 according to a first configuration example using the assembly furniture structure 1 according to the present embodiment. Fig. 2 is a perspective view showing an assembly furniture 102 according to a second configuration example using the assembly furniture structure 1.

[0046] In Figures 1 and 2, the structure of the assembled furniture is shown in a simplified manner. That is, pillars and beams are shown as lines, and boards are shown as squares. Note that similar expressions may be used in other figures described later.

[0047] 1, the assembly furniture 101 according to the first configuration example is what is called kitchen furniture or a system kitchen. The assembly furniture 101 is constructed using the assembly furniture structure 1 according to this embodiment, and is equipped with a top member 60 including a counter 61, a sink 62, a stove 64, etc., and can be said to be configured so that units with different functions are arranged in series.

[0048] 2, the assembly furniture 102 according to the second configuration example is kitchen furniture constructed using the assembly furniture structure 1 similar to the assembly furniture 101 according to the first configuration example. Unlike the assembly furniture 101 according to the first configuration example, the assembly furniture 102 according to the second configuration example is configured such that units having the same function or different functions are arranged in an L-shape.

[0049] An example of a basic configuration of the assembly furniture structure 1 according to this embodiment will be described below. Such assembly furniture 101, 102 can be constructed by combining each member that can constitute the assembly furniture structure 1.

[0050] FIG. 3 is a perspective view showing a basic configuration example of an assembly furniture structure 1 according to this embodiment.

[0051] As shown in Fig. 3, in this embodiment, the knockdown furniture structure 1 includes a post 10, a bar 20, a joint 30, and a structural plate 40. Although not shown in Fig. 3, the knockdown furniture structure 1 may also include an angle member 50 (shown in Fig. 8), a support member 55, and a top member 60 (shown in Fig. 17, etc.), which will be described later. In order to assemble these members in the knockdown furniture structure 1, for example, member assembly screws 8 (hereinafter sometimes simply referred to as screws 8) or joint connecting screws 9 shown in Fig. 16, etc., may be used.

[0052] The assembly furniture structure 1 shown in Figure 3 includes, for example, four posts 10, 13 bars 20, and 26 joints, and these members are combined to form a rectangular prism-shaped frame. In a plan view, the four posts 10 are located at the vertices of a rectangle, and the bars 20 are arranged to form each side of the rectangle. In this example, the lengths of the bars 20 are equal. For example, two structural panels 40 are arranged on the rectangular prism-shaped frame to form shelves or a back panel.

[0053] FIG. 4 is a front view showing an example of the post 10. As shown in FIG.

[0054] As shown in the figure, the post 10 is a columnar member used in a substantially vertical position. The post 10 is formed of a hollow rectangular tube. In this embodiment, the cross section of the outer shape of the post 10 is substantially square. It is sufficient that four or more posts 10 are provided in the assembly furniture structure 1.

[0055] The post 10 is provided with a plurality of post fixing portions 11. The post fixing portions 11 can be said to be portions for fixing the bar 20 to the post 10 via the joints 30, or for fixing the structural plate 40 or the angle member 50. In this embodiment, three post fixing portions 11 are provided on a specific side of the post 10, so as to be aligned at approximately equal intervals in the vertical direction (the longitudinal direction of the post 10). The post 10 used in the assembly furniture structure 1 shown in FIG. 3 has three post fixing portions 11 on each of two side surfaces aligned in the circumferential direction of the post 10. The positions of the post fixing portions 11 in the downward direction are approximately the same on the surfaces on which the post fixing portions 11 are provided. In other words, when the post 10 is in a substantially vertical position, two post fixing portions 11 on different surfaces in the circumferential direction are at approximately the same height.

[0056] The post fixing portion 11 has a first hole portion 12 for fixing the joint 30 to the post 10, and a second hole portion 15 provided near the first hole portion 12. In this embodiment, the first hole portion 12 includes a screw hole 13 into which a joint connecting screw 9 for fixing the joint 30 is inserted (screwed in), and an engagement hole 14 with which the joint 30 engages. In this embodiment, the second hole portion 15 has two screw holes 16 arranged vertically at a predetermined interval. Screws 8 for fixing the structural plate 40 or angle member 50 can be inserted into the screw holes 16. The engagement holes 14 are holes formed above and below the screw hole 13 so as to sandwich the screw hole 13.

[0057] In this embodiment, the post fixing portion 11 includes two second hole portions 15, excluding the topmost portion. The two second hole portions 15 are arranged at two locations, above and below the first hole portion 12, on either side of the first hole portion 12. In this embodiment, the two second hole portions 15 are arranged at positions symmetrical with respect to a plane that passes through the first hole portion 12 and is perpendicular to the up-down direction. The screw holes 13, 16 on each side of the post 10 are aligned with each other, with the center of the width direction of the side surface at the center. The distance between the screw hole 13 of the first hole portion 12 and the screw hole 16 of the second hole portion 15 adjacent to it in the up-down direction is configured to be the same in all post fixing portions 11.

[0058] In this embodiment, a second hole 15 is provided near the lower end of the post 10. The distance between this second hole 15 and the lower second hole 15 of the post fixing portion 11 above it is the same as the distance between the second hole portions 15 of two other adjacent post fixing portions 11.

[0059] Fig. 5 is a front view showing an example of the bar 20. Fig. 6 is a bottom view showing an example of the bar 20.

[0060] The bar 20 is a beam-like member used in a substantially horizontal position. The bar 20 is formed of a hollow rectangular tube. In this embodiment, the cross section of the outer shape of the bar 20 is substantially square. The bar 20 and the post 10 have the same outer dimensions and thickness. In other words, the outer shapes of the bar 20 and the post 10 are substantially the same, resulting in an excellent aesthetic appearance when assembled into knockdown furniture. Four or more bars 20 may be provided in one knockdown furniture structure 1.

[0061] In this embodiment, the bar 20 has bar fixing portions 21 at both ends and a third hole portion 25 provided in the middle portion. Here, the middle portion refers to a portion excluding both ends and is not limited to the center portion. Two third holes 25 are provided in two locations on the lower surface of the bar 20, aligned along the left-right direction (longitudinal direction) of the bar 20. In addition, one of the side surfaces of the bar 20 (referred to as the front surface here) is provided with two third holes 25 aligned along the left-right direction. The positions of the third holes 25 in the left-right direction are approximately the same on the surfaces on which the third holes 25 are provided.

[0062] In this embodiment, the third hole portion 25 has two screw holes 26 arranged on the left and right at a predetermined distance. Screws 8 for fixing the structural plate 40 or the angle member 50 can be inserted into the screw holes 26. The distance between the two screw holes 26 in the third hole portion 25 is equal to the distance between the two screw holes 16 in the second hole portion 15.

[0063] A fourth hole portion 27 is provided on the front surface of the bar 20 for fixing the joint 30 to the post 10. Similar to the first hole portion 12, the fourth hole portion 27 includes a threaded hole 28 into which a joint connecting screw 9 for fixing the joint 30 can be inserted, and an engagement hole 29 into which the joint 30 can engage. The engagement holes 29 are holes formed above and below the threaded hole 28 so as to sandwich the threaded hole 28. Because such a fourth hole portion 27 is provided in the bar 20, the bar 20 can be combined with other bars 20 by attaching the joint 30 to the bar 20.

[0064] Two third holes 25 are provided near the fourth hole 27 on the front surface of the bar 20. The two third holes 25 are located on either side of the fourth hole 27, sandwiching the fourth hole 27. In this embodiment, the two third holes 25 are located symmetrically with respect to a plane passing through the fourth hole 27 and perpendicular to the left-right direction. The screw holes 26, 28 on the front or bottom surface of the post 10 are aligned with each other, with the center of the width of the surface at the center. The distance between the screw hole 28 of the fourth hole and the screw hole 26 of the third hole 25 adjacent in the left-right direction is configured to be the same as the distance between the screw hole 13 of the first hole 12 and the screw hole 16 of the second hole 15 adjacent in the up-down direction. A pair of the fourth hole 27 and the third hole 25 arranged in this manner can be referred to as an intermediate fixing portion 24. The configuration of the intermediate fixing part 24 is similar to the configuration of the post fixing part 11, except that the arrangement of the engagement holes 29 differs from the arrangement of the engagement holes 14 of the post 10. In this embodiment, the intermediate fixing part 24 is provided so that the screw holes 28 of the bar 20 are positioned therein, but this is not limitative.

[0065] A bar fixing portion 21 is disposed at each end of the bar 20. The bar fixing portion 21 has a bar fixing hole 22. In this embodiment, the bar fixing portion 21 has two bar fixing holes 22 arranged on the left and right at a predetermined distance. The two bar fixing holes 22 are provided on the front surface of the bar 20. The bar fixing holes 22 are through holes through which the shanks of screws 8 inserted into the joint 30 can pass to fix the bar 20 to the joint 30. The distance between the two bar fixing holes 22 is approximately equal to the distance between the two screw holes 16 of the second hole portion 15. It can be said that the bar fixing holes 22 are formed at positions corresponding to joint hole portions 35 of the joint 30, which will be described later.

[0066] In this embodiment, the bar fixing portion 21 is provided with a cutout 23. The cutout 23 is a portion where a portion of the outer circumferential surface of the bar 20 is removed from the end of the bar 20 toward the center. The cutout 23 is formed on the bottom surface of the bar 20. By providing the cutout 23, when the bar 20 is fixed to the joint 30 as described below, at least a portion of the lower surface (bottom surface) of the joint 30 is not covered by the bar 20. In other words, the end of the bar 20 is provided with the cutout 23 that exposes the lower surface of the joint 30.

[0067] FIG. 7 is a perspective view showing the joint 30. As shown in FIG.

[0068] 7, for convenience, the longitudinal direction of the joint 30 is assumed to be the left-right direction, and the slit portion 34, which will be described later, is assumed to be on top. In the following, the side surfaces of the joint 30 can be referred to as the top surface, bottom surface, front surface, and back surface of the joint 30.

[0069] The joint 30 is formed in a substantially quadrangular prism shape. The joint 30 is a member for assembling the post 10 and the bar 20. As described above, the joint 30 may be used to assemble one bar 20 to another bar 20 by utilizing the fourth hole portion 27. It is sufficient that eight or more joints 30 are provided in one assembly furniture structure 1.

[0070] The joint 30 has an attachment portion 31 provided at one end in the longitudinal direction and a slit portion 34 formed on the top surface. The slit portion 34 is formed along the longitudinal direction from a position away from the attachment portion 31 to an end different from the end where the attachment portion 31 is provided. By including the slit portion 34, the joint 30 having such a shape can be easily cast.

[0071] The mounting portion 31 has a connecting hole 32 provided in the center of the end of the joint 30 and protrusions 33 formed above and below the connecting hole 32. The connecting hole 32 is a through-hole through which the shank of the joint connecting screw 9 inserted into the threaded hole 13 of the first hole portion 12 or the threaded hole 28 of the fourth hole portion 27 can pass. The protrusion 33 is a portion that protrudes outward in the longitudinal direction (to the left) from the end face of the end of the joint 30. The protrusion 33 has a shape that corresponds to the engagement hole 14 of the first hole portion 12 or the engagement hole 29 of the fourth hole portion 27. The joint 30 is configured so that the end face of the joint 30 can contact the post fixing portion 11 or the intermediate fixing portion 24 when the two upper and lower protrusions 33 are fitted (engaged) into the engagement holes 14, 29. The protrusions 33 fit into the engagement holes 14, 29, thereby maintaining the orientation of the joint 30 relative to the post 10 or the bar 20. This makes it easy to properly fix the joint 30 to the post 10 or bar 20 using the joint connecting screw 9.

[0072] The joint 30 also has a joint hole 35 provided on a side surface of the joint 30. The joint hole 35 may be provided on at least one side surface of the joint 30. In this embodiment, the joint hole 35 is provided on each of the three side surfaces excluding the top surface.

[0073] The joint hole portion 35 has two screw holes 36 arranged on the left and right at a predetermined distance. Screws 8 for fixing the bar 20 or angle member 50 can be inserted into the screw holes 36. The distance between the two screw holes 26 in the joint hole portion 35 is the same as the distance between the two screw holes 16 in the second hole portion 15. The joint hole portion 35 is located at a position corresponding to the bar fixing hole 22 in the bar fixing portion 21.

[0074] FIG. 8 is a perspective view illustrating an assembly structure using the joint 30. As shown in FIG.

[0075] 8 shows the connection portion between the post 10 and the bar 20. In this embodiment, the joint 30 is attached to the post fixing portion 11 of the post 10 at the portion where the bar 20 is to be connected. That is, the joint 30 is arranged in the first hole portion 12 of the post fixing portion 11 so that the protrusion 33 fits into the engagement hole 14. Then, the joint connecting screw 9 is inserted into the threaded hole 31 inserted from the inside of the joint 30, thereby fixing the joint 30 to the post fixing portion 11. The joint 30 may also be called a spigot joint.

[0076] The bar 20 is positioned so as to cover the joint 30 fixed to the post 10. It can be said that the joint 30 is inserted inside the bar fixing portion 21. In this state, the bar 20 is fixed to the joint 30 by inserting the screw 8 so that it passes through the bar fixing hole 22 of the bar fixing portion 21 and into the threaded hole 36 of the joint hole portion 35. In other words, the bar 20 can be fixed to the joint 30 by the bar fixing portion 21 with its end positioned so as to cover the joint 30 fixed to the post 10.

[0077] At each location where the bar 20 is attached to the post 10 in this manner, the angle member 50 can be attached from the underside of the bar 20, i.e., from the underside of the joint 30. In other words, the angle member 50 can be fixed to the location where the post 10 and bar 20 are fixed, and is a member that supports the bar 20 relative to the post 10.

[0078] In this embodiment, the angle member 50 may be a metal fitting bent approximately vertically and formed into an L-shape overall. The angle member 50 has a vertical portion 51 and a horizontal portion 52. Each of the vertical portion 51 and the horizontal portion 52 has a hole 53 at a position corresponding to the screw holes 16 and 36. That is, the angle member 50 is positioned so that the vertical portion 51 is aligned with the second hole 15 and the horizontal portion 52 is aligned with the underside of the joint 30 exposed through the cutout 23. The screw 8 is inserted through the hole 53 into the screw holes 16 and 36 to fix the angle member to the corresponding location. In other words, the angle member 50 is configured to be screwed into both the joint hole 35 on the underside of the joint 30 and the second hole 15 provided below the first hole 12 in the post fixing portion 11.

[0079] FIG. 9 is a perspective view illustrating the mounting structure of the angle member 50. As shown in FIG.

[0080] As shown in FIG. 9, in this embodiment, when the angle member 50 is fixed to the portion where the post 10 and the bar 20 are fixed, at least a portion of the upper side of the horizontal portion 52 is recessed into the portion where the notch 23 is formed. In other words, the notch 23 has a shape corresponding to the horizontal portion 52. It can be said that the portion of the angle member 50 facing the lower surface of the joint 30 is configured to be accommodated in the notch 23. In this way, since the horizontal portion 52 of the angle member 50 is accommodated in the notch 23, the strength of the assembled furniture structure 1 when the angle member 50 is attached is ensured, and the angle member 50 is prevented from protruding below the bottom surface of the bar 20, making it less likely to impair the aesthetic appearance of the furniture.

[0081] Next, the structure of the structural plate 40 and its mounting structure will be described.

[0082] FIG. 10 is a perspective view showing the structural plate 40. As shown in FIG.

[0083] As shown in Fig. 10, the structural board 40 is at least one substantially rectangular plate material. That is, the structural board 40 has two first opposite sides 41 and two second opposite sides 42. In the following description, for convenience, the second opposite sides 42 are assumed to be the long sides or sides having the same length as the first opposite sides 41. In Fig. 10, for convenience, the direction along the second opposite sides 42 is assumed to be the left-right direction, and the folding portions 43 and 44 described below are assumed to be folded downward, with the cutout portion 45 of the first folding portion 43 being in the front.

[0084] The structural board 40 has four bending portions 43, 44 bending from each of the sides 41, 42. In this embodiment, the structural board 40 has two first bending portions 43 bending from the two first opposite sides 41, respectively, and two second bending portions 44 bending from the two second opposite sides 42, respectively. Each bending portion 43, 44 is a portion that is bent so as to fit along the bar 20 or post 10 when the structural board 40 is placed in a desired position.

[0085] Each of the bent portions 43, 44 has a cutout 45 in a portion thereof. The cutout 45 can be said to be a portion of each of the sides 41, 42 that does not have a portion corresponding to the bent portion 43, 45. Due to the cutout 45 being provided in a portion thereof, the length of each of the bent portions 43, 44 in a direction parallel to the side corresponding to the bent portion 43, 44 is shorter than the length of the corresponding side. In this embodiment, each of the two first bent portions 43 has a cutout 45 near an end portion close to one of the two second opposite sides 42 (the front second opposite side 42 in FIG. 10 ). In other words, the cutout 45 is provided in a front portion of each of the first bent portions 43. Furthermore, the two second bent portions 44 have cutouts 45 near both ends thereof. That is, a cutout 45 is provided in each of the left and right side portions of each of the second bent portions 44.

[0086] Plate fixing portions 47 are provided in the bent portions 43, 44. Each plate fixing portion 47 has two plate fixing holes 48, which are through holes through which screws 8 can be inserted. In each plate fixing portion 47, the spacing between the two plate fixing holes 48 is approximately equal to the spacing between the screw holes 16 in the second hole portion 15 and the spacing between the screw holes 26 in the third hole portion 25. It is preferable that the plate fixing holes 48 are elongated holes that are long in the horizontal direction, and this configuration makes it possible to absorb errors that occur during assembly, etc.

[0087] The positions of the plate fixing portions 47 are set as follows so that one structural board 40 can be used both as a shelf board and as a back board. That is, when the structural board 40 is attached to the bar 20 to be used as a shelf board, the third hole 25 of the bar 20 is set to be located at a position corresponding to one of the plate fixing portions 47. When the structural board 40 is attached to the bar 20 and the post 10 to be used as a back board, the second hole 15 of the post 10 and the third hole 25 of the bar 20 are set to be located at a position corresponding to one of the plate fixing portions 47. More specifically, the bent portions 43, 44 are provided with the plate fixing portions 47 so that the three bent portions 43, 44 can be screwed into the third hole portions 25 when the structural board 40 is arranged as a shelf board, and the three bent portions 43, 44 can be screwed into the second hole portions 15 and the third hole portions 25 when the structural board 40 is arranged as a back board. In this embodiment, when the structural board 40 is used as a backboard, the position of the plate fixing portion 47 of the first bent portion 43 is set so that it can be screwed into the second hole portion 15 located above the post fixing portion 11 located below the structural board 40.

[0088] Fig. 11 is a plan view showing the assembly furniture structure 1 when the structural board 40 is attached as a shelf board. Fig. 12 is a front view showing the assembly furniture structure 1 when the structural board 40 is attached as a back board.

[0089] 11 and 12, members such as the bar 20, post 10, and screw 8 that are parallel to the paper surface are shown by dashed lines to make it easier to distinguish them from the structural plate 40.

[0090] As shown in FIG. 11 , when a structural board 40 is attached as a shelf to an assembly furniture structure 1, another bar 20 is attached between two bars 20 that form opposite sides using a joint 30. A structural board 40 can then be placed in each of two compartments separated by five bars 20. The structural board 40 is fixed to the bar 20 corresponding to the long side of each compartment by screwing the board fixing portion 47 of the second bent portion 44 into the third hole portion 25. The structural board 40 is also fixed to the other two bars 20 by screwing the board fixing portion 47 of the first bent portion 43 into the third hole portion 25 of the middle fixing portion 24. Since each of the four sides can be fixed to the bars 20 in this way, each structural board 40 can be firmly fixed.

[0091] Furthermore, since the structural plate 40 has a recess 45, the recess 45 can be placed at the location where the screw 8 that connects the bar 20 and the joint 30 is located, and the presence of the screw 8 does not affect the installation of the structural plate 40.

[0092] 12, when a structural board 40 is attached as a back panel to an assembly furniture structure 1, the structural board 40 is attached directly below one bar 20 that spans between two posts 10. The structural board 40 is fixed to the bar 20 by screwing the board fixing portion 47 of the second bent portion 44 into the third hole 25 provided on the underside of the bar 20. The structural board 40 is also fixed to the post 10 by screwing the board fixing portion 47 of the first bent portion 43 into the second hole 15 of the post fixing portion 11 on the underside of the structural board 40. Since each of the three sides can be fixed to the bar 20 in this way, each structural board 40 can be firmly fixed, and the structural board 40 can be used as a member equivalent to a diagonal brace.

[0093] Furthermore, since the structural board 40 has the cutout 45, when the structural board 40 is arranged as a backboard in this manner, the areas near the joint hole 35 and the second hole 15 to which the angle member 50 can be attached are not covered by the bent parts 43, 44 of the structural board 40, and can remain exposed. The presence of the joint 30 does not affect the attachment of the structural board 40, and it does not matter which order the joint 30 is attached to the structural board 40.

[0094] When structural board 40 is assembled and used in this manner, the dimensions of first opposite side 41 and second opposite side 42 are slightly smaller than the lengths of the corresponding bars 20. As a result, when structural board 40 is fixed with screws 8 as a backboard or shelf board, the multiple bars 20 or posts 10 to which structural board 40 is fixed are configured to be attracted to each other due to the fixed structural board 40. This allows force to act between the members to which structural board 40 is fixed, making it possible to construct assembly furniture with little rattle and high strength.

[0095] In this embodiment, the post 10 and the bar 20 are, for example, square steel pipes with a width of 22 mm. The thickness of each is, for example, about 1 to 2 mm, but is not limited to this. The thickness of the post 10 and the thickness of the bar 20 may be different. They do not have to be made of iron. The joint 30 is, for example, made of die-cast metal, but the material and manufacturing method are not limited to this. The joint 30 has a square pillar shape and has external dimensions corresponding to the thickness of the bar 20.

[0096] Furthermore, the structural plate 40 is made of, for example, a steel plate, but is not limited to this. It may be made of another metal plate, or may be made of, for example, a resin plate. The bent portion may be a portion having a surface that is bent from the main surface of the structural plate 40. The structural plate 40 as a whole may have a portion that fits along the bar 20 or post 10 as the bent portion.

[0097] As the components used in the assembly furniture structure 1, the structural boards 40, the bars 20, and the posts 10 may be made of a variety of components with different dimensions.

[0098] FIG. 13 is a perspective view showing an example of a large structural board 40W.

[0099] As shown in Fig. 13, the large structural plate 40W is larger than the structural plate 40 described above. The large structural plate 40W is substantially square, with all four sides having the same dimensions as the second opposite side 42 of the structural plate 40. In addition, the bent portions of each side are provided with plate fixing portions 47 and cutout portions 45, similar to the second opposite side 42 of the structural plate 40. In Fig. 13, each side and each bent portion is shown as the second opposite side 42 and second bent portion 44. In addition, to ensure rigidity, a rib 49 is formed downward in the center.

[0100] The large structural plate 40W can be attached as is to a substantially square section surrounded by four bars 20. It can also be used as a back plate.

[0101] FIG. 14 is a perspective view showing an example of the long bar 20L.

[0102] As shown in FIG. 14, the long bar 20L is a bar that is longer than the above-described bar 20. Specifically, the length of the long bar 20L is approximately twice the length of the bar 20. The long bar 20L has an intermediate fixing portion 24 at its center. Furthermore, third holes 25 are provided at two center portions between the ends and the center of the long bar 20L. The dimension from each end to the third hole 25 closest to that end is configured to be the same as that of the bar 20.

[0103] The long bar 20L can be used when a longer horizontal span is required.

[0104] FIG. 15 is a perspective view showing an example of a long structural board 40L.

[0105] As shown in Figure 15, the long structural board 40L has approximately twice the dimension in the left-right direction of the above-mentioned structural board 40. In other words, the long structural board 40L has a second opposite side 42L that is approximately twice the length of the above-mentioned second opposite side 42. The second bent portion 44L of the second opposite side 42L has cutout portions 45 at both left and right ends. The plate fixing portions 47 of the second bent portion 44L are provided in two locations, left and right, so that the distances from each left and right end are the same as the same distances at the second bent portion 44. In addition, to ensure rigidity, a rib 49 is formed facing downward in the center of the left and right sides.

[0106] The long structural board 40L can be used for a compartment configured using the long bar 20L. The long structural board 40L may also be used as a shelf board or a back board.

[0107] FIG. 16 is a perspective view showing an example of the fixing plate 80. As shown in FIG.

[0108] As shown in FIG. 16 , the fixing plate 80 is a rectangular plate material whose main surface has approximately the same dimensions as the structural plate 40, but can be attached to the bar 20 at folding portions 84 formed at two locations on its long side. That is, the folding portions 84 are portions that are folded so as to fit along the two side surfaces of the bar 20 along the long side. When the fixing plate 80 is used in a horizontal position, the portion of the folding portion 84 that is approximately parallel to the main surface fits along the bottom surface of the bar 20. When the fixing plate 80 is used as a top panel in a vertical position, the portion of the folding portion 84 that is approximately parallel to the main surface fits along the side surface of the bar 20. A plate fixing portion 87 having a plate fixing hole 88 is formed in the portion of the folding portion 84 that is approximately parallel to the main surface, at a position corresponding to the third hole portion 25 formed in the bar 20. The folding portion 84 has notches 85 at both ends of the long side. By providing the cutout portion 85, the folded portion 84 does not interfere with the screw 8 for fixing the bar 20 to the joint 30 or the attachment portion of the angle member 50.

[0109] The fixing plate 80 can be attached more easily than the structural plate 40, and can be used in place of the structural plate 40 when the strength of the assembled furniture structure 1 can be ensured by other means, or in areas where high load-bearing capacity or strength is not required.

[0110] FIG. 17 is a diagram illustrating the types of posts 10. As shown in FIG.

[0111] 17 illustrates three types of posts 10. In this embodiment, three types of post 10 structures are shown, each differing in the arrangement of the post fixing portion 11. That is, in this embodiment, an L-post 10L, a T-post 10T, and an X-post 10X can be used as the post 10.

[0112] The L-post 10L is a post 10 having post fixing portions 11 provided on two adjacent side surfaces. The L-post 10L can connect to a bar 20 in two directions that form a right angle in a plan view.

[0113] The T-post 10T is a post 10 having post fixing portions 11 on three sides. The T-post 10T can connect a bar 20 in all directions except one.

[0114] The X-post 10X is a post 10 having post fixing portions 11 on all four sides. The X-post 10X can connect to bars 20 in all four directions.

[0115] By using three types of posts 10 in consideration of the desired layout, no holes are provided on the surfaces where the bars 20 do not need to be connected, and assembly furniture that is neat and has an excellent aesthetic appearance can be constructed.

[0116] The length of the post 10 may be set as appropriate, and it is preferable to have a lineup of lengths corresponding to the reference length described below.

[0117] In this embodiment, the dimensional relationships between the members that make up the assembly furniture structure 1 can be specifically set as follows.

[0118] First, for each of the post 10, bar 20, joint 30, and structural plate 40, the position where the central axis of the post 10 or bar 20 to which the joint 30 is attached intersects with the central axis of the joint 30 when other assemblable components are assembled in various ways is referred to as the reference position D. Given a certain assembly configuration, there may be multiple reference positions D. An example of the reference position D is partially shown in Figures 11 and 12. The central axis is an axis along the longitudinal direction that passes through the center of the component. Typically, the reference position D is the intersection of the central axis of the post 10 and the central axis of the bar 20, the intersection of the central axis of the bar 20 and the central axis of another bar 20, or the intersection of the central axes of two components along which the sides of the structural plate 40 run.

[0119] When the reference position D is determined in this manner, it can be said that the distance between the reference position D on the post 10 and the one or more second holes 15 closest to the reference position D, the distance between the reference position D on the bar 20 and the third hole 25 closest to the reference position D, and the distance between the reference position D on the structural plate 40 and the plate fixing portion 47 closest to the reference position D are substantially the same. It can also be said that the distance between the reference position D on the joint 30 and the joint hole 35 closest to the reference position D is the same as these distances. In this case, the positions of the holes 15, 25, 35 and the plate fixing portion 47 may be specified as the central positions of multiple screw holes or holes if multiple screw holes or holes are provided, but they may also be specified as the positions of one corresponding screw hole or hole in each portion.

[0120] The predetermined reference length is set to approximately half the length of the bar 20 in this embodiment. In other words, the bar 20 can be said to have a length approximately twice the predetermined reference length. Note that, for example, when two types of members, the bar 20 and the long bar 20L, having different lengths, are used, the reference length may be set to half the length of any two bars 20 that form opposite sides in plan view among the four bars 20, 20L at the same height and arranged between the four posts 10 to form a rectangle with the posts 10 as the vertices in plan view.

[0121] When the reference length is set in this way, the following can be said.

[0122] That is, the dimension from the end of each bar 20 to the reference position D corresponding to the third hole portion 25, i.e., the dimension to the fourth hole portion 27, corresponds to the reference length. In this embodiment, the fourth hole portion 27 is provided in the center of the bar 20, so the dimension from the end of the bar 20 to the reference position D close to the third hole portion 25 is the same as the reference length.

[0123] Furthermore, the distance between the first holes 12 of the post fixing portions 11 arranged vertically in the post 10 corresponds to the reference length. In this embodiment, the distance between the first holes 12 minus the thickness of the bar 20 is the same as the reference length.

[0124] Furthermore, the two first opposite sides 41 of the structural plate 40 have dimensions corresponding to the reference length, and the other two second opposite sides 42 have dimensions corresponding to an integer multiple of the reference length. In this embodiment, the length of the first opposite sides 41 is approximately the same as the reference length, and the length of the second opposite side 42 is twice the reference length plus the thickness of the bar 20. In other words, it is preferable that the dimension of the second opposite side 42 corresponds to the dimension obtained by multiplying the reference length by N (N is an integer of 2 or more) plus the value obtained by multiplying the thickness of the bar 20 by (N-1).

[0125] In this embodiment, a top member 60 can be attached to the top of each section of the knockdown furniture structure 1 depending on the intended use of the knockdown furniture.

[0126] FIG. 18 is a plan view showing the top member 60. As shown in FIG.

[0127] 18, here, an example of a sink 62 is shown as the top member 60. The top member 60 has, for example, a rectangular shape with dimensions corresponding to the length of the bar 20 in a plan view. Mounting holes 66 into which screws can be inserted are provided in the vicinity of the four corners on the bottom side of the top member 60.

[0128] The top member 60 is fixed using a support member 55. The support member 55 is a metal fitting that can be fixed together with the bar 20 to the joint hole 35 of the joint 30. A hole 56 is provided at the tip of the support member 55, through which a screw that is inserted into the mounting hole 66 of the top member 60 can pass. The top member 60 is fixed by inserting a screw into the mounting hole 66 so that it passes through the hole 56 while the top member 60 is placed on the assembly furniture structure 1 from above the support member 55.

[0129] In this embodiment, when a reference position is assumed for the top member 60 in the same manner as described above, it is preferable that the dimensions of the mounting holes 66 from the reference position to the mounting holes 66 are equal in both the front-to-rear and left-to-right directions and are the same as the distance between the reference position D in the joint 30 and the joint hole 35 closest to the reference position D. By doing so, the position at which the support members 55 are attached can be either of the two bars 20 closest to each mounting hole 66, facilitating assembly.

[0130] Fig. 19 is a plan view of prefabricated furniture 102 according to the second configuration example. Fig. 20 is a plan view of prefabricated furniture 103 according to the third configuration example.

[0131] In these figures, the top members 60 are indicated by dashed lines. In the knockdown furniture 102 according to the second configuration example, for example, a counter 61, a sink 62, and a stove 64 are used as the top members 60. As described above, the knockdown furniture 102 is configured to be L-shaped overall by combining three types of posts 10.

[0132] Furthermore, in the knockdown furniture 103 according to the third configuration example, for example, a kitchen counter 61 and a long sink 63 are used as the top member 60. That is, the top member 60 is not limited to being square in plan view. The long sink 63 is configured so that it can be placed in a compartment configured using the long bar 20L.

[0133] In this embodiment, the dimensions of each side of the top member 60 are slightly larger than the length of the corresponding bar 20. As a result, the outer periphery of the top member 60 covers part of the upper surface of each of the adjacent bars 20 in a plan view. It can also be said that the top member 60 has overlapping portions that overlap part of the upper surface of each of the adjacent bars 20. This makes it possible to configure assembly furniture that has a good appearance without exposing the gap between the top member 60 and the bar 20, and that is less susceptible to the intrusion of foreign matter generated on the top member 60.

[0134] Below, we will explain another example of the configuration of assembly furniture using such assembly furniture structure 1. In the following figures, the structure of the assembly furniture is shown in a simplified manner, similar to Figs. 1 and 2.

[0135] FIG. 21 is a perspective view of knockdown furniture 104 according to the fourth configuration example.

[0136] The knockdown furniture 104 is configured with four top members 61 lined up in series. Six posts 10 are connected in a row, three at the front and three at the back, via long bars 20L, making it possible to configure a long knockdown furniture 104 with fewer posts 10. The right section does not have any shelves except for the top member 61, so it can be used as a dining table, for example, by placing a stool on it.

[0137] FIG. 22 is a perspective view of knockdown furniture 105 according to the fifth configuration example.

[0138] The knockdown furniture 105 is configured with four top members 61 lined up in series. Tall long posts 10L are used as the posts 10 on the rear side, and a back panel can be placed on the rear side to create a wall. For example, a mesh structure panel 40M in which wires are stretched in a lattice or mesh pattern, or a perforated structure panel 40P with numerous punched holes can be used as the back panel. These structural panels can also be used as shelves.

[0139] FIG. 23 is a perspective view of knockdown furniture 106 according to the sixth configuration example.

[0140] The knockdown furniture 106 is furniture that can be used as a tall storage rack. By using various types of long posts 10L, it is possible to configure a structure that appears bent in a plan view.

[0141] FIG. 24 is a perspective view of knockdown furniture 107 according to the seventh configuration example.

[0142] Assembled furniture 107 is furniture that can be used as a desk or a table. It does not use shelves, and in addition to a counter 61 that serves as a top, a long structural board 40L is placed in the center so as to hang down below the counter 61.

[0143] FIG. 25 is a perspective view of knockdown furniture 108 according to the eighth configuration example.

[0144] The knockdown furniture 108 is kitchen furniture configured by alternatingly combining posts 10 and long posts 10L to form a concave and convex shape in side view. In this way, by appropriately selecting the components to be combined, furniture with a desired configuration can be realized.

[0145] As described above, in this embodiment, the versatility of the layout of each member can be increased, and knockdown furniture of various configurations can be constructed using a limited number of parts.

[0146] In other words, in general, in assembly furniture, the greater the variety of parts, the more complicated the assembly becomes. Also, it is often necessary to prepare parts with specialized shapes and sizes for each type of furniture that can be assembled, which makes it difficult to standardize parts, resulting in problems such as increased production costs and inventory management burdens. Furthermore, in order to ensure strength and stability, additional parts such as braces must be prepared, which also leads to problems such as an increase in the number and variety of parts.

[0147] In contrast, in this embodiment, the structural board 40 is used as both the shelf board and the backboard, allowing for the standardization of parts, reducing production costs and streamlining inventory management. Furthermore, using the structural board 40 as the backboard increases the strength of the entire furniture. Furthermore, reinforcing the joint between the post 10 and the bar 20 with the angle member 50 reduces shaking and improves stability. Since the assembly method and assembly position of each component are standardized, the assembly procedure is simplified and work efficiency is improved. Because each component can be attached and detached with screws, it is possible to reassemble the furniture into the required configuration by adding or changing components.

[0148] (others)

[0149] The present invention is not limited to the above-described embodiment, and various modifications are possible, and these modifications are also included within the scope of the present invention.

[0150] The components of the above-described embodiments and variations may be appropriately combined to form an embodiment. For example, the configuration is not limited to the above-described embodiments, and each component of the above-described embodiments and variations may be appropriately replaced or combined with components of other embodiments, etc. Furthermore, some components or functions of the above-described embodiments and variations may be omitted.

[0151] The method of fixing each member may be performed by using fixing parts with other connecting means instead of screws and holes. Also, each member may be fixed to each other by providing fixing parts that are configured so that the members can be engaged with each other. [Industrial Applicability]

[0152] As described above, the assembly furniture structure according to the present invention has the effect of enabling assembly furniture having high strength to be constructed by combining a relatively small number of types of parts, and is useful as an assembly furniture structure, etc. [Explanation of symbols]

[0153] 1 Assembled furniture structure 8 Component assembly screws 9 Joint connecting screws 10 posts 11 Post fixing part 12 First hole 15 Second hole 20 bars 21 Bar fixing part 22 Bar fixing holes 23 Notch 25 Third hole 27 Fourth hole 30 joints 31 Mounting part 34 Slit section 35 Joint hole 40 Structural plate 41 First opposite side 42 Second opposite side 43 First bending part 44 Second bending part 45 Missing part 47 Plate fixing part 48 Plate fixing hole 50 Angle members 51 Vertical section 52 Horizontal section 55 Support member 56 Hole 60 Top member 66 mounting holes 101, 102, 103, 104, 105, 106, 107, 108 Assembled furniture (an example of assembled furniture structure) D Reference position

Claims

1. at least four posts used in a substantially vertical position; At least four bars used in a substantially horizontal position; Eight or more joints each formed in a substantially rectangular prism shape for assembling the post and the bar; At least one substantially rectangular structural plate having four bending portions that bend from each side along the bar or the post; the post is provided with a plurality of post fixing portions, each of which has a first hole portion having a screw hole for fixing the joint and a second hole portion having a screw hole provided in the vicinity of the first hole portion; The bar is provided with a bar fixing hole, which is a through hole provided near an end thereof, and a third hole portion having a screw hole for fixing the structural plate, The joint has a joint hole portion having a threaded hole formed on at least one side surface, the joint can be fixed to the post fixing portion of the post by a screw; The bar can be fixed to the joint by a screw passing through the bar fixing hole while being arranged so as to cover the joint fixed to the post, In this assembly furniture structure, the folding portions of the structural board are formed with board fixing portions having board fixing holes that are through holes into which screws can be placed, so that when the structural board is placed as a shelf board, at least three of the folding portions can each be screwed to the third hole portion, and when the structural board is placed as a back board, the three folding portions can each be screwed to the second hole portion and the third hole portion.

2. an angle member that can be fixed to a portion where the post and the bar are fixed and supports the bar relative to the post; The joint holes are provided on three of the four side surfaces of the joint, The bar fixing hole is formed in a side surface of the bar, The end of the bar is provided with a notch through which the underside of the joint is exposed, 2. The assembly furniture structure according to claim 1, wherein the angle member is configured to be screwable into both the joint hole portion on the lower surface of the joint and a second hole portion provided below the first hole portion in the post fixing portion.

3. 3. The assembly furniture structure according to claim 2, wherein a portion of the angle member facing the lower surface of the joint is configured to be accommodated in the notch.

4. The structural plate has, as the bending portions, two first bending portions bending from two first opposite sides respectively and two second bending portions bending from two second opposite sides respectively, each of the two first bent portions has a cutout portion near an end portion close to one of the two second opposite sides; the two second bent portions each have a cutout portion near both end portions, 3. The assembly furniture structure according to claim 2, wherein when the structural board is arranged as a back board, areas near the joint hole and the second hole to which the angle member can be attached are configured to be exposed and not covered by the bent portion of the structural board.

5. the bar is provided with a fourth hole portion having a screw hole for attaching the joint; The assembly furniture structure according to claim 1 , wherein the third hole portion is provided in the vicinity of the fourth hole portion.

6. When the post, the bar, the joint, and the structural plate are assembled as mutually assemblable components, the position where the central axis of the post or bar to which the joint is attached intersects with the central axis of the joint is called the reference position.

2. The assembly furniture structure according to claim 1, wherein a distance between the reference position on the post and the second hole, a distance between the reference position on the bar and the third hole, and a distance between the reference position on the structural board and the board fixing hole are configured to be approximately the same.

7. Among the four bars at the same height arranged between the four posts so as to form a rectangle with the posts as vertices in a plan view, two bars forming opposite sides in a plan view have a length that is approximately twice the predetermined reference length, 7. The assembly furniture structure according to claim 6, wherein a dimension from each end of the bar to the reference position corresponding to each of the third holes is the same as the reference length.

8. In the post, two or more of the post fixing portions are arranged so as to be aligned with each other in the up-down direction, The assembly furniture structure according to claim 7, wherein a length obtained by subtracting a thickness dimension of the bar from the interval between the respective first holes is the same as the reference length.

9. the dimensions of the two first opposite sides of the structural plate and the dimensions of the other two second opposite sides of the structural plate are slightly smaller than the lengths of the corresponding bars, 2. The assembly furniture structure according to claim 1, wherein when the structural board is fixed with screws as a back board or a shelf board, the bars or posts to which the structural board is fixed are configured to be attracted to each other due to the structural board being fixed.

10. The assembly furniture structure according to claim 1 , wherein the post and the bar are rectangular tubes having the same outer dimensions and thickness.

11. a support member that can be fixed together with the bar to the joint hole of the joint; a top member attachable to the support member; The assembly furniture structure according to claim 1 , wherein the top member is configured to cover a portion of an upper surface of each of the adjacent bars in a plan view.

12. at least four posts used in a substantially vertical position; At least four bars used in a substantially horizontal position; Eight or more joints each formed in a substantially rectangular prism shape for assembling the post and the bar; At least one substantially rectangular structural plate having four bending portions that bend from each side along the bar or the post; the post is provided with a plurality of post fixing portions, each of which has a first fixing portion for fixing the joint and a second fixing portion provided in the vicinity of the first fixing portion; The bar has a bar fixing portion provided near an end thereof and a third fixing portion for fixing the structural plate thereto, The joint has a joint fixing portion formed on at least one side surface, The joint is configured to be fixable to the post fixing portion, the bar can be fixed to the joint by the bar fixing portion with an end portion disposed so as to cover the joint fixed to the post; The folding portions of the structural board are configured such that, when the structural board is placed as a shelf board, at least three of the folding portions can be fixed to the third fixing portion, and when the structural board is placed as a back board, the three folding portions can be fixed to the second fixing portion and the third fixing portion, respectively.

13. A post used in the assembly furniture according to any one of claims 1 to 11, comprising a plurality of the post fixing portions.

14. A bar for use in the knockdown furniture according to any one of claims 1 to 11, the bar having the bar fixing hole and the third hole portion.

15. A structural board used in the assembly furniture according to any one of claims 1 to 11, the structural board having the four bent portions and the board fixing holes.

16. A top member used in the knockdown furniture according to any one of claims 1 to 11, the top member being configured to be attachable to a support member that can be fixed together with the bar to the joint hole of the joint.

Images