Leg frames, combinations of multiple leg frames, and kits containing multiple leg frames.

Abstract

We offer leg frames with a high degree of freedom in combination, combinations of multiple leg frames, and kits that include multiple leg frames. [Solution] The leg frame comprises a first frame portion made of one or more linear members, having a first side portion, a second side portion, a bottom portion, and a top portion to which a mounting member is attached, and a first engaging portion provided on the first frame portion and capable of engaging with other leg frames. The top portion has a mounting opening for the mounting member defined by one or more linear members.

Description

Technical Field

[0001] The present invention relates to a leg frame, a combination of a plurality of leg frames, and a kit including a plurality of leg frames.

Background Art

[0002] Outdoor fireplaces are known.

[0003] As a related technique, Patent Document 1 discloses an assembled outdoor hearth device. The assembled outdoor hearth device described in Patent Document 1 includes a hearth body, a support frame member that supports the hearth body, and a pair of leg members that support the support frame member. In the assembled outdoor hearth device described in Patent Document 1, it is not possible to attach another leg member to the side portion of the leg member.

[0004] Also, Patent Document 2 discloses an outdoor fireplace. The outdoor fireplace described in Patent Document 2 includes a bottom support frame and a plurality of side plates surrounding the bottom support frame. In the outdoor fireplace described in Patent Document 2, since the side plates are made of plate materials, the overall weight of the outdoor fireplace is larger than that of the assembled outdoor hearth device described in Patent Document 1.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0006] An object of the present invention is to provide a leg frame with high freedom of combination, a combination of a plurality of leg frames, and a kit including a plurality of leg frames.

Means for Solving the Problems

[0007] The means for solving the problem are described below using the numbers and symbols used in the embodiments for carrying out the invention. These numbers and symbols are added in parentheses for reference to show an example of the correspondence between the claims and the embodiments for carrying out the invention. Therefore, the claims should not be interpreted restrictively because of the parenthetical statements.

[0008] In some embodiments, the leg frame comprises a first frame portion (F1) made of one or more linear members (M1) having a first side portion (11), a second side portion (13), a bottom portion (15), and a top portion (17) to which a mounting member is attached, and a first engaging portion (12) provided on the first frame portion (F1) and capable of engaging with other leg frames. The top portion (17) has a mounting member attachment opening (OP1) defined by one or more of the linear members (M1).

[0009] In the leg frame described above, the mounting opening (OP1) may be defined by a plurality of linear portions (170) including an upper linear portion (171) and a lower linear portion (173) positioned below the upper linear portion (171).

[0010] In the above-described leg frame, the lower linear portion (173) may have a recess (173d) that is indented downwards.

[0011] In the above-described leg frame, the first frame portion (F1) may have a substantially X-shaped lower opening (OP2) below the mounting opening (OP1) described above.

[0012] In the leg frame described above, the first engaging portion (12) may include a first additional member (121a) that functions as an engagement prevention portion to prevent the engagement between the first engaging portion (12) and other leg frames from disengaging. The first additional member (121a) may be attached to the end (e1-1) of the linear member (M1).

[0013] A combination of multiple leg frames in some embodiments comprises the above-described leg frame (1) and a second leg frame (2). The second leg frame (2) comprises a second frame portion (F2) composed of one or more linear members (M2) and a second leg frame engaging portion (24) provided on the second frame portion (F2) and capable of engaging with other leg frames.

[0014] In the above combination of multiple leg frames, the engagement between the first engaging portion (12) and the second leg frame engaging portion (24) may be configured to prevent disengagement when the first engaging portion (12) and the second leg frame engaging portion (24) are engaged and the first frame portion (F1) and the second frame portion (F2) are arranged substantially vertically in a plan view. The engagement between the first engaging portion (12) and the second leg frame engaging portion (24) may be configured to prevent disengagement when the first engaging portion (12) and the second leg frame engaging portion (24) are engaged and the first frame portion (F1) and the second frame portion (F2) are arranged linearly in a plan view. When the first engaging portion (12) and the second leg frame engaging portion (24) are engaged, and the first frame portion (F1) and the second frame portion (F2) are positioned at predetermined angles other than 90 degrees and 180 degrees in a plan view, the engagement between the first engaging portion (12) and the second leg frame engaging portion (24) may be released.

[0015] In the above combination of multiple leg frames, the second frame portion (F2) may be provided with a second mounting member opening (OP3). With the first engaging portion (12) of the first frame portion (F1) and the second leg frame engaging portion (24) of the second frame portion (F2) engaged, a first usage configuration may be realized in which the first frame portion (F1) is positioned substantially perpendicular to the second frame portion (F2) in a plan view, so that the bonfire stand body portion (9a) as the mounting member (9) is supported by the frame structure (ST1) including the first frame portion (F1) and the second frame portion (F2). A second usage configuration may be realized in which the first frame portion (F1) and the second frame portion (F2), in a state supporting the top plate (9c), are arranged in a substantially V-shape when viewed from the front, such that one side (91) of the top plate (9c) as the mounting member (9) is held by the mounting member mounting opening (OP1) of the first frame portion (F1), and the other side (92) of the top plate (9c) is held by the second mounting member mounting opening (OP3) of the second frame portion (F2).

[0016] The above combination of multiple leg frames may further comprise a third leg frame (3) having a third frame section (F3). By connecting the first frame section (F1), the second frame section (F2), and the third frame section (F3) in a substantially U-shape in plan view, a frame structure (ST1) in a substantially U-shape in plan view may be formed. By connecting the first frame section (F1), the second frame section (F2), and the third frame section (F3) in a substantially equilateral triangle in plan view, a frame structure (ST1') in a substantially equilateral triangle in plan view may be formed.

[0017] A kit including multiple leg frames in some embodiments comprises the above-described leg frame (1), a second leg frame (2), a third leg frame (3), and a bonfire stand body (9a) as the above-described mounting member (9). The second leg frame (2) comprises a second frame portion (F2) composed of one or more linear members (M2), and a second leg frame engaging portion (24) provided on the second frame portion (F2) and capable of engaging with other leg frames. The third leg frame (3) comprises a third frame portion (F3) composed of one or more linear members (M3), and a third leg frame engaging portion (32) provided on the third frame portion (F3) and capable of engaging with other leg frames. The first frame portion (F1), the second frame portion (F2), and the third frame portion (F3) can be connected in a substantially U-shape in plan view. The fire pit body (9a) includes a first side wall (951), a second side wall (952), and a third side wall (953) which can be positioned opposite the first frame (F1), the second frame (F2), and the third frame (F3), respectively, as well as a bottom body (954), a front opening (Q1), and a top opening (Q2).

[0018] The kit, which includes the above-mentioned multiple leg frames, may further comprise a trivet (96). The trivet (96) may have a mounting portion (961) on which cooking utensils can be placed, and a ring body (966) that protrudes downward from the mounting portion (961).

[0019] The kit including the plurality of leg frames may include a fourth leg frame (4) having a fourth frame portion (F4), a fifth leg frame (5) having a fifth frame portion (F5), a sixth leg frame (6) having a sixth frame portion (F6), and a second brazier main body portion (9a-2) supported by a frame structure (ST2) including the fourth frame portion (F4), the fifth frame portion (F5), and the sixth frame portion (F6). The first frame portion (F1), the second frame portion (F2), the third frame portion (F3), the fourth frame portion (F4), the fifth frame portion (F5), and the sixth frame portion (F6) may be connectable in a substantially rectangular shape in a plan view.

Advantages of the Invention

[0020] According to the present invention, it is possible to provide a leg frame with a high degree of freedom in combination, a combination of a plurality of leg frames, and a kit including a plurality of leg frames.

Brief Description of the Drawings

[0021] [Figure 1] FIG. 1 is a schematic front view schematically showing a leg frame in the first embodiment. [Figure 2] FIG. 2 is a schematic perspective view schematically showing a state in which the leg frame in the first embodiment is connected to the second leg frame and the third leg frame. [Figure 3] FIG. 3 is a schematic perspective view schematically showing a state in which a brazier main body portion as a mounting member is supported by a frame structure including the leg frame in the first embodiment. [Figure 4] FIG. 4 is a schematic perspective view schematically showing a state in which a top plate is supported by a frame structure including the leg frame in the first embodiment. [Figure 5] FIG. 5 is a schematic four-sided view schematically showing a state in which a top plate as a mounting member is supported by a plurality of leg frames including the leg frame in the first embodiment. [Figure 6]FIG. 6 is a schematic front view schematically showing a leg frame in the first embodiment. [Figure 7] FIG. 7 is a schematic front view schematically showing a first ring body. [Figure 8] FIG. 8 is a schematic front view schematically showing a part of the leg frame in the first embodiment. [Figure 9] FIG. 9 is a schematic front view schematically showing a leg frame in a modified example of the first embodiment. [Figure 10] FIG. 10 is a schematic perspective view schematically showing a state in which a trivet is supported by a plurality of leg frames including the leg frame in the first embodiment. [Figure 11] FIG. 11 is a schematic perspective view schematically showing the leg frame in the first embodiment. [Figure 12] FIG. 12 is a schematic perspective view schematically showing a combination of a plurality of leg frames in the second embodiment. [Figure 13] FIG. 13 is a schematic plan view schematically showing a change in the arrangement relationship between the leg frame and the second leg frame. [Figure 14] FIG. 14 is a schematic perspective view schematically showing a state in which the leg frame and the second leg frame are arranged substantially perpendicularly. [Figure 15] FIG. 15 is a schematic perspective view schematically showing a state in which the leg frame and the second leg frame are arranged linearly. [Figure 16] FIG. 16 is a schematic perspective view schematically showing a state in which the leg frame and the second leg frame are arranged at approximately 45 degrees. [Figure 17] FIG. 17 is a schematic front view schematically showing the second leg frame. [Figure 18] FIG. 18 is a schematic front view schematically showing the second leg frame in a modified example. [Figure 19] FIG. 19 is a schematic perspective view schematically showing the second leg frame. [Figure 20] FIG. 20 is a schematic perspective view schematically showing a state in which a plurality of leg frames including the leg frame and the second leg frame are bundled by a binding material. [Figure 21] Figure 21 is a schematic plan view illustrating an example of a fire pit. [Figure 22] Figure 22 is a schematic perspective view illustrating an example of a long, narrow table. [Figure 23] Figure 23 is a schematic perspective view illustrating a combination of multiple leg frames in the second embodiment. [Figure 24] Figure 24 is a schematic perspective view illustrating how the leg frame, the second leg frame, and the third leg frame are connected in a roughly U-shape. [Figure 25] Figure 25 is a schematic front view illustrating the third leg frame. [Figure 26] Figure 26 is a schematic front view showing the third leg frame in a modified example. [Figure 27] Figure 27 is a schematic perspective view illustrating the third leg frame. [Figure 28] Figure 28 is a schematic perspective view illustrating how the leg frame, the second leg frame, and the third leg frame are connected in a roughly triangular shape. [Figure 29] Figure 29 is a schematic perspective view showing a kit including multiple leg frames in a third embodiment. [Figure 30] Figure 30 is a schematic perspective view illustrating an example of a campfire grill. [Figure 31] Figure 31 is a schematic perspective view illustrating how a fire pit is assembled from a kit including multiple leg frames in the third embodiment. [Figure 32] Figure 32 is a schematic perspective view showing the disassembled main body of the fire pit. [Figure 33] Figure 33 is a schematic perspective view illustrating the changes in the arrangement of the trivets. [Figure 34] Figure 34 is a schematic perspective view illustrating the changes in the arrangement of the trivets. [Figure 35] Figure 35 is a schematic perspective view illustrating an example of a campfire grill. [Figure 36]Figure 36 is a schematic perspective view showing a kit including multiple leg frames in the fourth embodiment. [Figure 37] Figure 37 is a schematic perspective view illustrating how a shelf is assembled from a kit including multiple leg frames in the fourth embodiment. [Figure 38] Figure 38 is a schematic perspective view showing a kit including multiple leg frames in the fourth embodiment. [Modes for carrying out the invention]

[0022] The leg frame 1, the combination of multiple leg frames CM, and the kit K including multiple leg frames in the embodiment will be described below with reference to the attached drawings. In the following description, members and parts having the same function will be given the same reference numerals, and repeated descriptions of members and parts with the same reference numerals will be omitted.

[0023] (Definition of direction) In this specification, with respect to leg frame 1, the direction from the bottom 15 of leg frame 1 toward the top 17 of leg frame 1 is defined as the upward direction, and the direction from the top 17 of leg frame 1 toward the bottom 15 of leg frame 1 is defined as the downward direction. In this specification, with respect to second leg frame 2, the direction from the bottom of second leg frame 2 toward the top of second leg frame 2 is defined as the upward direction, and the direction from the top of second leg frame 2 toward the bottom of second leg frame 2 is defined as the downward direction. In this specification, with respect to third leg frame 3, the direction from the bottom of third leg frame 3 toward the top of third leg frame 3 is defined as the upward direction, and the direction from the top of third leg frame 3 toward the bottom of third leg frame 3 is defined as the downward direction.

[0024] (First embodiment) The leg frame 1 in the first embodiment will be described with reference to Figures 1 to 11. Figure 1 is a schematic front view illustrating the leg frame 1 in the first embodiment. Figure 2 is a schematic perspective view illustrating how the leg frame 1 in the first embodiment is connected to the second leg frame 2 and the third leg frame 3. Figure 3 is a schematic perspective view illustrating how the fire pit body 9a (more specifically, the fire bed) as a mounting member 9 is supported by the frame structure ST1 including the leg frame 1 in the first embodiment. Figure 4 is a schematic perspective view illustrating how the top plate 9b is supported by the frame structure ST1' including the leg frame 1 in the first embodiment. Figure 5 is a schematic four-view diagram illustrating how the top plate 9c as a mounting member 9 is supported by a plurality of leg frames including the leg frame 1 in the first embodiment. Figure 5 includes a schematic plan view at the top, a schematic left side view at the bottom left, a schematic front view at the bottom center, and a schematic right side view at the bottom right. Figure 6 is a schematic front view schematically showing the leg frame 1 in the first embodiment. Figure 7 is a schematic front view schematically showing the first ring body AB1. Figure 8 is a schematic front view schematically showing a part of the leg frame 1 in the first embodiment. Figure 9 is a schematic front view schematically showing the leg frame 1 in a modified example of the first embodiment. Figure 10 is a schematic perspective view schematically showing how the trivet 96 is supported by multiple leg frames, including the leg frame 1 in the first embodiment. Figure 11 is a schematic perspective view schematically showing the leg frame 1 in the first embodiment.

[0025] As illustrated in Figure 1, the leg frame 1 in the first embodiment comprises a first frame portion F1 and a first engaging portion 12. Additionally, the leg frame 1 may also include a second engaging portion 14.

[0026] The first frame section F1 has a first side section 11, a second side section 13, a bottom section 15, and a top section 17 to which the mounting member 9 is attached. The first frame section F1 is composed of one or more linear members M1. The first frame section F1 may also be composed of only a plurality of linear members M1.

[0027] The first engaging portion 12 is provided on the first frame portion F1 (for example, the first side portion 11 of the first frame portion F1, or the top portion 17 of the first frame portion F1). As illustrated in Figure 2, the first engaging portion 12 can engage with other leg frames (for example, the second leg frame 2).

[0028] The second engaging portion 14 is provided on the first frame portion F1 (for example, the second side portion 13 of the first frame portion F1, or the top portion 17 of the first frame portion F1). As illustrated in Figure 2, the second engaging portion 14 can further engage with another leg frame (for example, the third leg frame 3).

[0029] In the example shown in Figure 1, the top portion 17 has a mounting opening OP1 for the mounting member. The mounting opening OP1 is defined by one or more linear members M1.

[0030] In the example shown in Figure 3, the mounting member 9 is the main body 9a of the fire pit (more specifically, the fire bed of the fire pit) on which fuel such as firewood and charcoal is placed. In the example shown in Figure 3, a part of the mounting member 9 (more specifically, the main body 9a of the fire pit) is attached to the mounting member mounting opening OP1. More specifically, a part of the mounting member 9 (more specifically, the main body 9a of the fire pit) is attached to the lower linear part 173 which constitutes a part of the linear part that defines the mounting member mounting opening OP1.

[0031] As illustrated in Figure 1, the first frame portion F1 of the leg frame 1 in the first embodiment is composed of one or more linear members M1. Therefore, the leg frame 1 is made lighter.

[0032] In the first embodiment, the leg frame 1 has a first engaging portion 12 provided on the first frame portion F1. Therefore, the user can attach another leg frame (e.g., a second leg frame 2) to the first frame portion F1 (e.g., a first side portion 11) (see Figure 2).

[0033] In the first embodiment, the leg frame 1 may have a second engaging portion 14 provided on the first frame portion F1. If the leg frame 1 has the second engaging portion 14, the user can attach another leg frame (e.g., a third leg frame 3) to the first frame portion F1 (e.g., a second side portion 13) (see Figure 2).

[0034] In the first embodiment, the leg frame 1 has a mounting opening OP1 for a mounting member provided at the top 17. Therefore, the user can attach a mounting member 9 (for example, the main body of a bonfire stand 9a) to the mounting opening OP1 (see Figure 3). In the example shown in Figure 3, the mounting member 9 (for example, the main body of a bonfire stand 9a) is supported by a frame structure ST1 consisting of the leg frame 1, the second leg frame 2, and the third leg frame 3.

[0035] As illustrated in Figure 4, the upper end of the leg frame 1 may support a tabletop 9b of any shape. In the example shown in Figure 4, the mounting member 9 (for example, a tabletop 9b of any shape) is placed on the upper end of the frame structure ST1' which consists of the leg frame 1, the second leg frame 2, and the third leg frame 3.

[0036] As illustrated in Figure 5, a top plate 9c, which serves as a mounting member 9, may be inserted into the mounting opening OP1 of the leg frame 1. In the example shown in Figure 5, the top plate 9c, which serves as a mounting member 9, is supported by the leg frame 1 and the second leg frame 2.

[0037] As can be seen from Figures 3 to 5, the first embodiment provides a leg frame 1 with a high degree of freedom in combination. In the example shown in Figure 3, the leg frame 1 functions as one of the support legs of a fire pit 100A. In the example shown in Figure 4, the leg frame 1 functions as one of the support legs of a table (more specifically, a round table 100B). In the example shown in Figure 5, the leg frame 1 functions as one of the support legs of a table (more specifically, a long, narrow table 100C).

[0038] (Optional additional configuration) Next, with reference to Figures 1 to 11, we will describe optional additional configurations that can be adopted in the leg frame 1 of the first embodiment.

[0039] (Linear member M1) In the example shown in Figure 6, the plurality of linear members M1 constituting the first frame portion F1 include a first linear member M1-1 and a second linear member M1-2. Additionally, the plurality of linear members M1 constituting the first frame portion F1 may also include a third linear member M1-3.

[0040] Each of the multiple linear members M1 is made of, for example, metal (e.g., stainless steel). More specifically, the first linear member M1-1 is made of, for example, metal (e.g., stainless steel). The second linear member M1-2 is made of, for example, metal (e.g., stainless steel), and the third linear member M1-3 is made of, for example, metal (e.g., stainless steel).

[0041] The cross-sectional shape of each of the multiple linear members M1 perpendicular to the longitudinal direction is, for example, circular. More specifically, the cross-sectional shape of the first linear member M1-1 in a plane perpendicular to the longitudinal direction is, for example, circular. Similarly, the cross-sectional shape of the second linear member M1-2 in a plane perpendicular to the longitudinal direction is, for example, circular, and the cross-sectional shape of the third linear member M1-3 in a plane perpendicular to the longitudinal direction is, for example, circular.

[0042] In the example shown in Figure 6, the second linear member M1-2 is welded to the first linear member M1-1. More specifically, the first end e1-2 of the second linear member M1-2 is welded to the first linear member M1-1. In addition, the second end e2-1 of the first linear member M1-1 is welded to another linear member (for example, the second linear member M1-2).

[0043] In the example shown in Figure 7, the first ring body AB1 is composed of a first linear member M1-1 and a second linear member M1-2. The top of the first ring body AB1 functions as part of the top 17 of the first frame portion F1 (for example, the upper linear portion 171 described later). The first side of the first ring body AB1 functions as the first side portion 11 of the first frame portion F1, and the second side of the first ring body AB1 functions as the second side portion 13 of the first frame portion F1. The bottom of the first ring body AB1 functions as the bottom portion 15 of the first frame portion F1.

[0044] In the example shown in Figure 6, the third linear member M1-3 is welded to the first ring body AB1 (more specifically, the first linear member M1-1 and / or the second linear member M1-2). More specifically, the first end e1-3 of the third linear member M1-3 is welded to the first ring body AB1 (more specifically, the second side portion 13 or the first linear member M1-1). Also, the second end e2-3 of the third linear member M1-3 is welded to the first ring body AB1 (more specifically, the first side portion 11 or the second linear member M1-2).

[0045] In the example shown in Figure 6, the first linear member M1-1 constitutes at least a portion of the top portion 17 (for example, the upper linear portion 171 and the upper engaging portion 12-1 described later) and at least a portion of the second side portion 13 (for example, at least a portion of the second lateral linear portion 130 described later).

[0046] Additionally, the first linear member M1-1 may constitute at least a portion of the bottom portion 15 (for example, the bottom linear portion 150 described later). Furthermore, the first linear member M1-1 may constitute at least a portion of the first side portion 11 (for example, the second end portion e2-1 described above).

[0047] Alternatively, as illustrated in Figure 9, the plurality of linear members M1 constituting the first frame portion F1 may include a fourth linear member M1-4. In the example shown in Figure 9, one end of the fourth linear member M1-4 is connected (more specifically, welded) to the first linear member M1-1, and the other end of the fourth linear member M1-4 is connected (more specifically, welded) to the second linear member M1-2. In the example shown in Figure 9, the fourth linear member M1-4 constitutes at least a portion of the bottom portion 15 (for example, the bottom linear portion 150 described later).

[0048] In the example shown in Figure 6, the second linear member M1-2 constitutes at least a portion of the first side portion 11 (for example, the first lateral linear portion 110 described later). Additionally, the second linear member M1-2 (more specifically, the first end portion e1-2 of the second linear member M1-2) may constitute at least a portion of the top portion 17.

[0049] In the example shown in Figure 6, the third linear member M1-3 constitutes at least a portion of the top portion 17 (more specifically, the lower linear portion 173, which will be described later).

[0050] (First frame section F1) In the example shown in Figure 6, the first frame portion F1 is formed by welding a plurality of linear members M1. The first frame portion F1 may have a closed shape that defines at least one opening (OP1; OP2). When the first frame portion F1 has a closed shape, the first frame portion F1 is less prone to deformation. In the example shown in Figure 6, the first frame portion F1 includes a first ring body AB1 (see Figure 7) that defines the opening OP, and a lower linear portion 173 (more specifically, a third linear member M1-3) positioned below the upper linear portion 171.

[0051] In the example shown in Figure 6, the lower linear portion 173 (more specifically, the third linear member M1-3) divides the opening OP defined by the first ring body AB1 into an upper opening (more specifically, the mounting member opening OP1) and a lower opening OP2. More specifically, the mounting member opening OP1 is defined by the upper portion of the first ring body AB1 and the lower linear portion 173 (more specifically, the third linear member M1-3). The lower opening OP2 is defined by the lower portion of the first ring body AB1 and the lower linear portion 173 (more specifically, the third linear member M1-3).

[0052] If the first frame section F1 has two closed shapes (OP1; OP2), the first frame section F1 is even less prone to deformation.

[0053] In the example shown in Figure 6, the first frame portion F1 has an upper opening that functions as a mounting opening OP1 for the mounting member. In the example shown in Figure 6, the mounting opening OP1 for the mounting member is an elongated opening. More specifically, the mounting opening OP1 for the mounting member is an elongated opening that extends from the first side portion 11 to the second side portion 13.

[0054] In the example shown in Figure 6, the mounting opening OP1 for the mounting member is an opening defined by the upper linear portion 171, the lower linear portion 173, the upper end of the first side portion 11, and the upper end of the second side portion 13.

[0055] In the example shown in Figure 6, the first frame section F1 has a lower opening OP2. In the example shown in Figure 6, the lower opening OP2 is located below the upper opening (more specifically, the mounting member opening OP1). In the example shown in Figure 6, the size of the lower opening OP2 is larger than the size of the upper opening (more specifically, the mounting member opening OP1).

[0056] In the example shown in Figure 6, the first frame section F1 defines a roughly X-shaped lower opening OP2 below the upper opening (more specifically, the mounting opening OP1 for the mounting member). When the first frame section F1 has a lower opening OP2, the first frame section F1 is made lighter. Also, when the lower opening OP2 is roughly X-shaped, the structural strength of the first frame section F1 that defines the lower opening OP2 is high.

[0057] In the example shown in Figure 6, the first frame portion F1 has a first part F1-1 that defines the mounting opening OP1 for the mounting member, and a second part F1-2 positioned below the first part F1-1. In the example shown in Figure 8, the second part F1-2 has a hollow X-shape. The second part F1-2 also defines a roughly X-shaped lower opening OP2.

[0058] In the example shown in Figure 6, the mounting opening OP1 for the mounting member is defined by a plurality of linear parts 170, including an upper linear part 171 and a lower linear part 173 positioned below the upper linear part 171. In this case, the member defining the mounting opening OP1 is made lighter. Furthermore, there is no need to drill holes when forming the mounting opening OP1 for the mounting member. The mounting opening OP1 for the mounting member may also be formed by welding a plurality of linear members (M1-1, M1-3).

[0059] In the example shown in Figure 6, the upper portion of the mounting opening OP1 is formed by the upper linear portion 171. In this case, it is easy to hook other members (for example, a trivet) onto the upper linear portion 171, which is the upper portion of the mounting opening OP1. In the example shown in Figure 6, the lower portion of the mounting opening OP1 is formed by the lower linear portion 173. In this case, it is easy to hook other members (for example, the mounting member 9 exemplified in Figure 3) onto the lower linear portion 173, which is the lower portion of the mounting opening OP1.

[0060] In the example shown in Figure 6, the first linear member M1-1 includes an upper linear portion 171, and the third linear member M1-3 includes a lower linear portion 173. The first end e1-3 of the lower linear portion 173 may be welded to the first linear member M1-1. The second end e2-3 of the lower linear portion 173 may also be welded to the second linear member M1-2.

[0061] In the example shown in Figure 6, the upper linear portion 171 has a substantially straight shape. Alternatively, the upper linear portion 171 may have a bent portion or a curved portion.

[0062] In the example shown in Figure 6, the first engaging portion 12 (more specifically, the first protruding engaging portion 12a-1) protrudes downward from the upper linear portion 171. Furthermore, at least a portion of the upper linear portion 171 is formed by a part of the first linear member M1-1, and at least a portion of the first engaging portion 12 is formed by another part of the first linear member M1-1.

[0063] In the example shown in Figure 6, the lower linear portion 173 has a recess 173d that is indented downward (more specifically, a recess 173d that is indented toward the bottom portion 15). When the lower linear portion 173 has a recess 173d, the strength of the lower linear portion 173 is improved. Also, when the lower linear portion 173 has a recess 173d, the elasticity of the lower linear portion 173 is improved. More specifically, when the lower linear portion 173 deforms due to heat, the recess 173d expands or contracts. Therefore, when the lower linear portion 173 is welded to another member in a welded joint, even if the lower linear portion 173 expands due to heat, excessive stress on the welded joint is suppressed.

[0064] In the example shown in Figure 10, the recess 173d functions as a receiving portion capable of receiving the trivet 96. More specifically, in the example shown in Figure 10, the first end portion 96a of the trivet 96 is inserted between the recess 173d and the upper linear portion 171. Cooking utensils such as pots, kettles, and mess kits are placed on the trivet 96. In this specification, "trivet" means a mounting member for placing cooking utensils such as pots, kettles, and mess kits.

[0065] In the example shown in Figure 6, the recess 173d is a roughly V-shaped recess. The apex angle α1 of the roughly V-shaped recess is, for example, between 60 degrees and 170 degrees, between 80 degrees and 150 degrees, or between 105 degrees and 135 degrees.

[0066] In the example shown in Figure 6, the lower linear portion 173 has two straight sections 175 and a recess 173d located between the two straight sections 175. A top plate 9c (see Figure 5) can be placed on the two straight sections 175.

[0067] In the example shown in Figure 6, the lower linear portion 173 has a first straight portion 175a. The distance L1 between the first straight portion 175a and the upper linear portion 171 is, for example, 8 mm to 50 mm, 10 mm to 40 mm, or 12 mm to 30 mm. When the distance L1 is 8 mm to 50 mm, the mounting opening OP1 can suitably support a plate material with a thickness of 8 mm to 50 mm (for example, the top plate 9c illustrated in Figure 5).

[0068] In the example shown in Figure 6, the recess 173d functions as a receiving portion capable of simultaneously receiving four fingers of one hand (i.e., the index finger, middle finger, ring finger, and little finger). In the example shown in Figure 6, four fingers of one hand (i.e., the index finger, middle finger, ring finger, and little finger) can be simultaneously inserted into the space between the recess 173d and the upper linear portion 171. In other words, the space between the recess 173d and the upper linear portion 171 functions as a gripping space. In this case, with four fingers of one hand inserted into the space between the recess 173d and the upper linear portion 171, the upper linear portion 171 can be gripped with that hand. Therefore, the leg frame 1 is easily transported.

[0069] (First side portion 11) In the example shown in Figure 6, the first side portion 11 includes a first lateral linear portion 110. The first lateral linear portion 110 may include a first engaging portion 12 (more specifically, a lower engaging portion 12-2).

[0070] In the example shown in Figure 6, the first side portion 11 (more specifically, the first lateral linear portion 110) has a first recess 113d that is recessed toward the second side portion 13. When the first side portion 11 has the first recess 113d, the strength of the first side portion 11 is improved. Also, when the first side portion 11 has the first recess 113d, the elasticity of the first side portion 11 is improved. More specifically, when the first side portion 11 deforms due to heat, the first recess 113d expands or contracts. Therefore, when the member defining the first side portion 11 is welded to another member at a weld joint, even if the first side portion 11 expands due to heat, excessive stress on the weld joint is suppressed.

[0071] In the example shown in Figure 6, the end of the linear member M1 (more specifically, the second end e2-1 of the first linear member M1-1) is welded to the first recess 113d.

[0072] In the example shown in Figure 6, the first recess 113d is a roughly V-shaped recess. The apex angle α2 of the roughly V-shaped recess is, for example, 60 degrees or more and 170 degrees or less, 70 degrees or more and 140 degrees or less, or 80 degrees or more and 110 degrees or less. The size of the roughly V-shaped apex angle α2 of the first recess 113d (for example, 90 degrees) may be smaller than the size of the roughly V-shaped apex angle α1 of the recess 173d (for example, 120 degrees).

[0073] In the example shown in Figure 6, the first side portion 11 has two linear portions 115 and a first recess 113d located between the two linear portions 115.

[0074] In the example shown in Figure 6, at least a portion of the first side portion 11 (for example, the first linear portion 115a and the first recess 113d) is made up of the second linear member M1-2. In addition, in the example shown in Figure 6, at least another portion of the first side portion 11 (for example, the second linear portion 115b) is made up of a linear member different from the second linear member M1-2 (for example, the first linear member M1-1).

[0075] (Second side portion 13) In the example shown in Figure 6, the second side portion 13 includes a second lateral linear portion 130. The second lateral linear portion 130 may have a second engaging portion 14 (more specifically, an upper engaging portion 14-1 and / or a lower engaging portion 14-2).

[0076] In the example shown in Figure 6, the second side portion 13 (more specifically, the second lateral linear portion 130) has a second recess 133d that is recessed toward the first side portion 11. When the second side portion 13 has the second recess 133d, the strength of the second side portion 13 is improved. Furthermore, when the second side portion 13 has the second recess 133d, the elasticity of the second side portion 13 is improved. More specifically, when the second side portion 13 deforms due to heat, the second recess 133d expands or contracts. Therefore, when the member defining the second side portion 13 is welded to another member at a weld joint, even if the second side portion 13 expands due to heat, excessive stress on the weld joint is suppressed.

[0077] In the example shown in Figure 6, the second recess 133d is a roughly V-shaped recess. The apex angle α3 of the roughly V-shaped recess is, for example, 60 degrees or more and 170 degrees or less, 70 degrees or more and 140 degrees or less, or 80 degrees or more and 110 degrees or less. The size of the roughly V-shaped apex angle α3 of the second recess 133d (for example, 90 degrees) may be substantially the same as the size of the roughly V-shaped apex angle α2 of the first recess 113d (for example, 90 degrees).

[0078] In the example shown in Figure 6, the second side portion 13 has two linear portions 135 and a second recess 133d positioned between the two linear portions 135. In the example shown in Figure 6, a second engaging portion 14 is positioned in each of the two linear portions 135.

[0079] In the example shown in Figure 6, at least a portion of the second side portion 13 (more specifically, the entire second side portion 13) is made up of the first linear member M1-1.

[0080] If the first side portion 11 has a first recess 113d that is recessed toward the second side portion 13, and the second side portion 13 has a second recess 133d that is recessed toward the first side portion 11, then a flexible member such as rubber or string can be wrapped around the first recess 113d and the second recess 133d. Thus, the leg frame 1 can be transported using a flexible member. As illustrated in Figure 20, if the second leg frame 2, described later, has a fourth recess 213d and a fifth recess 233d, then a flexible binding material 83 such as rubber or string can be wrapped around the first recess 113d and the second recess 133d of the leg frame 1 and the fourth recess 213d and the fifth recess 233d of the second leg frame 2. Thus, multiple leg frames, including the leg frame 1 and the second leg frame 2, can be easily bundled together using a binding material 83 (for example, string).

[0081] (bottom 15) In the examples shown in Figures 3 to 5, the bottom portion 15 functions as a contact portion that makes contact with the ground or floor. In the example shown in Figure 6, the bottom portion 15 includes a bottom linear portion 150. In the example shown in Figure 6, the bottom portion 15 (more specifically, the bottom linear portion 150) has a third recess 153d that is recessed upward (more specifically, a third recess 153d that is recessed toward the top portion 17). When the bottom portion 15 has the third recess 153d, the strength of the bottom portion 15 is improved. Also, when the bottom portion 15 has the third recess 153d, the elasticity of the bottom portion 15 is improved. More specifically, when the bottom portion 15 deforms due to heat, the third recess 153d expands or contracts. Therefore, when the member defining the bottom portion 15 is welded to another member at a weld joint, even if the bottom portion 15 expands due to heat, excessive stress on the weld joint is suppressed. Furthermore, if the bottom portion 15 has a third recess 153d, the contact area of ​​the bottom portion 15 is reduced, and sufficient ground pressure can be ensured.

[0082] In the example shown in Figure 6, the third recess 153d is a roughly V-shaped recess. The apex angle α4 of the roughly V-shaped recess is, for example, 60 degrees or more and 170 degrees or less, 80 degrees or more and 150 degrees or less, or 105 degrees or more and 135 degrees or less. The size of the roughly V-shaped apex angle α4 of the third recess 153d (for example, 120 degrees) may be substantially the same as the size of the roughly V-shaped apex angle α1 of the recess 173d of the lower linear portion 173 (for example, 120 degrees).

[0083] In the example shown in Figure 6, the bottom portion 15 has two linear portions 155 and a third recess 153d positioned between the two linear portions 155. The two linear portions 155 function as the ground contact portion of the leg frame 1. Having the two linear portions 155 as the ground contact portion of the leg frame 1 allows the leg frame 1 to be stably grounded.

[0084] In the example shown in Figure 6, at least a portion of the bottom 15 (more specifically, the entire bottom 15) is made up of the first linear member M1-1.

[0085] (First engaging portion 12) As illustrated in Figure 2, the first engaging portion 12 can engage with engaging portions of other leg frames (for example, the second engaging portion 24 of the second leg frame 2).

[0086] In the example shown in Figure 2, the first engaging portion 12 includes a protruding engaging portion 12a. The protruding engaging portion 12a is, for example, an engaging portion that protrudes downward. The first engaging portion 12 may include an upper engaging portion 12-1 and a lower engaging portion 12-2 positioned below the upper engaging portion 12-1. In the example shown in Figure 2, each of the upper engaging portion 12-1 and the lower engaging portion 12-2 includes a protruding engaging portion 12a. Also, in the example shown in Figure 2, each of the upper engaging portion 12-1 and the lower engaging portion 12-2 protrudes downward.

[0087] In the example shown in Figure 6, at least a portion of the protruding engagement portion 12a is made up of a portion of the linear member M1. In the example shown in Figure 6, at least a portion of the protruding engagement portion 12a is made up of the end portion of the linear member M1 itself. More specifically, the protruding engagement portion 12a includes a first protruding engagement portion 12a-1, and at least a portion of the first protruding engagement portion 12a-1 is made up of the first end portion e1-1 of the first linear member M1-1.

[0088] In the example shown in Figure 6, the protruding engaging portion 12a includes a second protruding engaging portion 12a-2. Furthermore, at least a portion of the second protruding engaging portion 12a-2 is formed by the second end portion e2-2 of the second linear member M1-2. The entirety of the second protruding engaging portion 12a-2 may also be formed by the second end portion e2-2 of the second linear member M1-2.

[0089] If at least a portion of the protruding engaging portion 12a is formed by the end of the linear member M1 itself, the number of parts is reduced. Furthermore, at least a portion of the protruding engaging portion 12a will not detach from the linear member M1.

[0090] In the example shown in Figure 6, the first protruding engagement portion 12a-1 is located on the top 17 of the first frame portion F1. In the example shown in Figure 6, the first protruding engagement portion 12a-1 is located opposite the first linear portion 115a. The first protruding engagement portion 12a-1 may be located substantially parallel to the first linear portion 115a. In the example shown in Figure 6, a gap is present between the first protruding engagement portion 12a-1 and the first linear portion 115a.

[0091] In the example shown in Figure 6, the second protruding engaging portion 12a-2 is positioned on the first side portion 11 of the first frame portion F1. In the example shown in Figure 6, the second protruding engaging portion 12a-2 is positioned opposite the second linear portion 115b. The second protruding engaging portion 12a-2 may be positioned substantially parallel to the second linear portion 115b. In the example shown in Figure 6, a gap is interposed between the second protruding engaging portion 12a-2 and the second linear portion 115b.

[0092] In the example shown in Figure 2, the first protruding engagement portion 12a-1 and the second protruding engagement portion 12a-2 each extend along the first axis AX1, and each of the first protruding engagement portion 12a-1 and the second protruding engagement portion 12a-2 is located on the first axis AX1. In the example shown in Figure 2, the first axis AX1 is the axis of rotation of the leg frame 1 relative to the second leg frame 2. More specifically, when the leg frame 1 and the second leg frame 2 are engaged, the leg frame 1 is rotatable about the first axis AX1 relative to the second leg frame 2.

[0093] In the example shown in Figure 11, the first engaging portion 12 includes a first additional member 121a that functions as an engagement prevention portion to prevent the first engaging portion 12 from disengaging from other leg frames, and the first additional member 121a is attached to the end of the linear member M1. More specifically, in the example shown in Figure 11, the protruding engaging portion 12a (more specifically, the first protruding engaging portion 12a-1) includes the end of the linear member M1 (more specifically, the first end e1-1 of the first linear member M1-1) and the first additional member 121a attached to the end (more specifically, the first end e1-1). In the example shown in Figure 11, the first additional member 121a is welded to the end of the linear member M1 (more specifically, the first end e1-1 of the first linear member M1-1). The end of the linear member M1 (more specifically, the first end e1-1 of the first linear member M1-1) and the first additional member 121a may be linearly welded.

[0094] The first additional member 121a functions as an engagement prevention member that prevents the protruding engagement portion 12a from disengaging from another leg frame (for example, the second leg frame 2 illustrated in Figure 13). In the example shown in Figure 11, the extending direction of the first additional member 121a is substantially parallel to the extending direction of the end of the linear member M1 (more specifically, the first end e1-1 of the first linear member M1-1).

[0095] In the example shown in Figure 6, the base of the protruding engagement portion 12a is supported by a portion WD formed by the welding of two linear members M1. More specifically, the base of the first protruding engagement portion 12a-1 is supported by a portion WD1 formed by the welding of two linear members M1 (more specifically, a portion WD1 formed by the welding of the first linear member M1-1 and the second linear member M1-2). The base of the second protruding engagement portion 12a-2 is supported by a portion WD2 formed by the welding of two linear members M1 (more specifically, a portion WD2 formed by the welding of the first linear member M1-1 and the second linear member M1-2).

[0096] (Second engaging portion 14) In the example shown in Figure 11, the second engaging portion 14 has a shape complementary to the shape of the first engaging portion 12 (more specifically, the protruding engaging portion 12a). The second engaging portion 14 includes, for example, a ring-shaped engaging portion 14a. A protruding engaging portion of another leg frame (for example, the protruding engaging portion 32a of the third leg frame 3 illustrated in Figure 2) can be inserted into the ring-shaped engaging portion 14a.

[0097] The central axis of the ring-shaped engaging portion 14a is preferably aligned in the vertical direction. The ring-shaped engaging portion 14a only needs to be substantially ring-shaped. In other words, the ring-shaped engaging portion 14a may be a completely closed annular body or an incomplete annular body with a small gap. As illustrated in Figure 11, the ring-shaped engaging portion 14a may be composed of linear members arranged in a ring shape or a U-shape.

[0098] In the example shown in Figure 11, the through-hole 14h defined by the ring-shaped engaging portion 14a is an elongated hole. In the example shown in Figure 11, the major axis of the through-hole 14h (more specifically, the elongated hole) is approximately parallel to the direction of extension of the upper linear portion 171.

[0099] The second engaging portion 14 may include an upper engaging portion 14-1 and a lower engaging portion 14-2 positioned below the upper engaging portion 14-1. In the example shown in Figure 11, each of the upper engaging portion 14-1 and the lower engaging portion 14-2 includes a ring-shaped engaging portion 14a.

[0100] In the example shown in Figure 11, the second engaging portion 14 (more specifically, the ring-shaped engaging portion 14a) is welded to the linear member M1. More specifically, the first ring-shaped engaging portion 14a-1, which serves as the upper engaging portion 14-1, is welded to the first linear member M1-1. The second ring-shaped engaging portion 14a-2, which serves as the lower engaging portion 14-2, is also welded to the first linear member M1-1.

[0101] Because the ring-shaped engaging portion 14a is welded to the linear member M1, the ring-shaped engaging portion 14a is less likely to detach from the linear member M1.

[0102] In the example shown in Figure 6, the second engaging portion 14 (more specifically, the ring-shaped engaging portion 14a) is located on the second side portion 13 of the first frame portion F1. In the example shown in Figure 6, the upper engaging portion 14-1 (more specifically, the first ring-shaped engaging portion 14a-1) is located on the upper part of the second side portion 13 of the first frame portion F1. The lower engaging portion 14-2 (more specifically, the second ring-shaped engaging portion 14a-2) is located on the lower part of the second side portion 13 of the first frame portion F1.

[0103] In the example shown in Figure 2, the second axis AX2 passes through both the first ring-shaped engagement portion 14a-1 and the second ring-shaped engagement portion 14a-2. In the example shown in Figure 2, the second axis AX2 is the pivot axis of the leg frame 1 relative to the third leg frame 3. In the example shown in Figure 2, the second axis AX2 is substantially parallel to the first axis AX1.

[0104] (Second embodiment) Referring to Figures 1 to 28, the combination CM of multiple leg frames in the second embodiment will be described. Figure 12 is a schematic perspective view illustrating the combination CM of multiple leg frames in the second embodiment. Figure 13 is a schematic plan view illustrating the change in the arrangement relationship between leg frame 1 and second leg frame 2. Figure 14 is a schematic perspective view illustrating leg frame 1 and second leg frame 2 arranged approximately vertically. Figure 15 is a schematic perspective view illustrating leg frame 1 and second leg frame 2 arranged in a straight line. Figure 16 is a schematic perspective view illustrating leg frame 1 and second leg frame 2 arranged at approximately a 45-degree angle. Figure 17 is a schematic front view illustrating second leg frame 2. Figure 18 is a schematic front view illustrating second leg frame 2 in a modified example. Figure 19 is a schematic perspective view illustrating second leg frame 2. Figure 20 is a schematic perspective view showing how multiple leg frames, including leg frame 1 and second leg frame 2, are bundled together by binding material 83. Figure 21 is a schematic plan view showing an example of a bonfire stand 100A. Figure 22 is a schematic perspective view showing an example of a long, narrow table 100C. Figure 23 is a schematic perspective view showing a combination CM of multiple leg frames in a second embodiment. Figure 24 is a schematic perspective view showing how leg frame 1, second leg frame 2, and third leg frame 3 are connected in a roughly U-shape. Figure 25 is a schematic front view showing the third leg frame 3. Figure 26 is a schematic front view showing the third leg frame 3 in a modified example. Figure 27 is a schematic perspective view showing the third leg frame 3. Figure 28 is a schematic perspective view showing how leg frame 1, second leg frame 2, and third leg frame 3 are connected in a roughly triangular shape.

[0105] In the second embodiment, the focus will be on the differences from the first embodiment, and repetitive explanations of matters already explained in the first embodiment will be omitted. Therefore, it goes without saying that even if not explicitly explained in the second embodiment, matters already explained in the first embodiment can be adopted in the second embodiment.

[0106] As illustrated in Figure 12, the combination CM of multiple leg frames in the second embodiment comprises a leg frame 1 and a second leg frame 2.

[0107] Since the leg frame 1 has already been described in the first embodiment, a repeated explanation of the leg frame 1 will be omitted.

[0108] As illustrated in Figure 12, the second leg frame 2 comprises (1) a second frame portion F2 composed of one or more linear members M2, and (2) a second leg frame engagement portion provided on the second frame portion F2 and capable of engaging with other leg frames (for example, a second leg frame engagement portion 24 capable of engaging with the first engagement portion 12 of leg frame 1).

[0109] As illustrated in Figure 12, the second frame portion F2 may include a first side portion 21 of the second leg frame, a second side portion 23 of the second leg frame, a bottom portion 25 of the second leg frame, and a top portion 27 of the second leg frame. In the example shown in Figure 12, the second engaging portion 24 of the second leg frame is located on the second side portion 23 of the second leg frame.

[0110] The combination of multiple leg frames CM in the second embodiment provides the same effect as the leg frame 1 in the first embodiment.

[0111] In the second embodiment, the combination CM of multiple leg frames comprises a leg frame 1 and a second leg frame 2. Therefore, by combining multiple leg frames including the leg frame 1 and the second leg frame 2, it is possible to form all or part of various types of support legs (for example, support legs for a campfire stand, support legs for a table, support legs for a shelf, etc.).

[0112] (Optional additional configuration) Next, with reference to Figures 1 to 28, we will describe optional additional configurations that can be adopted in the combination of multiple leg frames CM in the second embodiment.

[0113] (Engagement between the first engagement portion 12 of the leg frame 1 and the second engagement portion 24 of the second leg frame) Figures 13(a) and 14 show the state in which the first engaging portion 12 of the leg frame 1 and the second engaging portion 24 of the second leg frame 2 are engaged. Figure 13(a) also shows the state in which the first frame portion F1 and the second frame portion F2 are arranged approximately vertically in a plan view (in other words, the first frame portion F1 and the second frame portion F2 are arranged at approximately 90 degrees in a plan view).

[0114] In the examples shown in Figures 13(a) and 14, when the first frame portion F1 and the second frame portion F2 are arranged substantially perpendicularly in a plan view (more specifically, when the first frame portion F1 and the second frame portion F2 are arranged substantially perpendicularly when viewed in the direction along the first axis AX1), the engagement between the first engagement portion 12 and the second engagement portion 24 of the second leg frame is prevented from disengaging. More specifically, when the first frame portion F1 and the second frame portion F2 are arranged substantially perpendicularly in a plan view, when viewed in the direction along the first axis AX1, the first additional member 121a, which constitutes a part of the first engagement portion 12, is positioned to interfere with the second engagement portion 24 of the second leg frame (more specifically, the upper engagement portion 24-1, and even more specifically, the third ring-shaped engagement portion 24a-1). Therefore, the engagement between the first engagement portion 12 and the second engagement portion 24 of the second leg frame is prevented by the first additional member 121a catching on the second engagement portion 24 of the second leg frame.

[0115] Figures 13(b) and 15 show the state in which the first engaging portion 12 of the leg frame 1 and the second engaging portion 24 of the second leg frame 2 are engaged. Also, Figure 13(b) shows the state in which the first frame portion F1 and the second frame portion F2 are arranged in a straight line in a plan view (in other words, the state in which the first frame portion F1 and the second frame portion F2 are arranged at approximately 180 degrees in a plan view).

[0116] In the examples shown in Figures 13(b) and 15, when the first frame portion F1 and the second frame portion F2 are arranged in a straight line in a plan view (more specifically, when the first frame portion F1 and the second frame portion F2 are arranged in a straight line when viewed in the direction along the first axis AX1), the engagement between the first engagement portion 12 and the second engagement portion 24 of the second leg frame is prevented from disengaging. More specifically, when the first frame portion F1 and the second frame portion F2 are arranged in a straight line in a plan view, when viewed in the direction along the first axis AX1, the first additional member 121a, which constitutes a part of the first engagement portion 12, is positioned to interfere with the second engagement portion 24 of the second leg frame (more specifically, the upper engagement portion 24-1, and even more specifically, the third ring-shaped engagement portion 24a-1). Therefore, the engagement between the first engagement portion 12 and the second engagement portion 24 of the second leg frame is prevented by the first additional member 121a catching on the second engagement portion 24 of the second leg frame.

[0117] Figures 13(c) and 16 show the state in which the first engaging portion 12 of the leg frame 1 and the second engaging portion 24 of the second leg frame 2 are engaged. Also, Figure 13(c) shows the state in which the first frame portion F1 and the second frame portion F2 are positioned at predetermined angles other than 90 degrees and 180 degrees in a plan view (more specifically, in the direction along the first axis AX1) (for example, the state in which the first frame portion F1 and the second frame portion F2 are positioned at a 45-degree angle in a plan view).

[0118] In the examples shown in Figures 13(c) and 16, when the first frame portion F1 and the second frame portion F2 are positioned at predetermined angles other than 90 degrees and 180 degrees in a plan view (more specifically, in the direction along the first axis AX1) (for example, when the first frame portion F1 and the second frame portion F2 are positioned at 45 degrees in a plan view), the engagement between the first engaging portion 12 and the second engaging portion 24 of the second leg frame can be released.

[0119] More specifically, as illustrated in Figure 13(c), when the first frame section F1 and the second frame section F2 are positioned at predetermined angles other than 90 degrees and 180 degrees in a plan view (for example, when the first frame section F1 and the second frame section F2 are positioned at a 45-degree angle in a plan view), the first additional member 121a is positioned so as to not interfere with the second engaging section 24 of the second leg frame (more specifically, the upper engaging section 24-1, and even more specifically, the third ring-shaped engaging section 24a-1) when viewed in the direction along the first axis AX1. More specifically, when viewed in the direction along the first axis AX1, the entire first additional member 121a is positioned so as to overlap with the through hole 24h defined by the third ring-shaped engaging section 24a-1 of the second leg frame 2. Therefore, when the first engaging portion 12 slides relative to the second engaging portion 24 of the second leg frame along the first axis AX1, the two engaging portions do not catch on each other. In other words, by sliding the first engaging portion 12 relative to the second engaging portion 24 of the second leg frame along the first axis AX1, the engagement between the first engaging portion 12 and the second engaging portion 24 of the second leg frame can be released.

[0120] In the examples shown in Figures 14 and 15, the engagement between leg frame 1 and second leg frame 2 does not disengage in both the state where the first frame section F1 and the second frame section F2 are arranged linearly in a plan view, and the state where the first frame section F1 and the second frame section F2 are arranged substantially perpendicularly in a plan view. Therefore, the leg frame 1 and second leg frame 2, once assembled, are effectively prevented from being unintentionally disassembled (for example, by lifting leg frame 1 and second leg frame 2 upwards). Thus, the user can easily transport the assembled leg frame 1 and second leg frame 2.

[0121] Furthermore, in the example shown in Figures 14 and 16 (or Figures 15 and 16), the combined leg frame 1 and second leg frame 2 can be disassembled with only two actions: relative rotation of leg frame 1 around the first axis AX1 with respect to the second leg frame 2 (see arrow AR1 in Figure 14 or 15), and relative movement of leg frame 1 in a direction parallel to the first axis AX1 with respect to the second leg frame 2 (see arrow AR2 in Figure 16). Therefore, it is easy to disassemble the combined leg frame 1 and second leg frame 2.

[0122] More specifically, in the examples shown in Figures 14 and 16, the leg frame 1 and the second leg frame 2 are engaged, and the first frame portion F1 and the second frame portion F2 are positioned approximately perpendicular to each other when viewed along the first axis AX1 (see Figure 14). The leg frame 1 can then be removed from the second leg frame 2 by rotating the leg frame 1 relative to the second leg frame 2 by a predetermined angle (for example, 45 degrees) around the first axis AX1, and then sliding the leg frame 1 relative to the second leg frame 2 in a direction parallel to the first axis AX1. Furthermore, in the examples shown in Figures 15 and 16, the leg frame 1 and the second leg frame 2 are engaged, and the first frame portion F1 and the second frame portion F2 are arranged in a straight line when viewed along the first axis AX1 (see Figure 15). The leg frame 1 can then be removed from the second leg frame 2 by rotating the leg frame 1 relative to the second leg frame 2 by a predetermined angle (for example, 135 degrees) around the first axis AX1, and then sliding the leg frame 1 relative to the second leg frame 2 in a direction parallel to the first axis AX1.

[0123] In the examples shown in Figures 13 to 16, when the first frame portion F1 and the second frame portion F2 are positioned at 90 degrees or 180 degrees when viewed in the direction along the first axis AX1, the engagement state between the first engagement portion 12 and the second engagement portion 24 of the second leg frame may be the state in which disengagement is least likely.

[0124] In the example shown in Figure 13(b), when the first frame portion F1 and the second frame portion F2 are at a 180-degree angle when viewed in the direction along the first axis AX1, the engagement between the first engagement portion 12 and the second engagement portion 24 of the second leg frame does not disengage. In this case, by arranging multiple leg frames, including the leg frame 1 and the second leg frame 2, in a straight line, a long, straight frame structure can be formed, and this straight frame structure is difficult to disassemble (in other words, the engagement is difficult to disengage).

[0125] Furthermore, by arranging multiple leg frames, including leg frame 1 and second leg frame 2, in a circular shape, a circular frame structure can be formed, and this circular frame structure is difficult to disassemble (in other words, the engagement is difficult to detach). To elaborate, when multiple leg frames are arranged in a circular shape, two adjacent leg frames will be positioned to form an angle close to 180 degrees, making it difficult for two adjacent leg frames to detach.

[0126] In the example shown in Figure 13(a), when the first frame section F1 and the second frame section F2 are at a 90-degree angle when viewed along the first axis AX1, the engagement between the first engagement section 12 and the second engagement section 24 of the second leg frame does not disengage. Similarly, in the example shown in Figure 13(b), when the first frame section F1 and the second frame section F2 are at a 180-degree angle when viewed along the first axis AX1, the engagement between the first engagement section 12 and the second engagement section 24 of the second leg frame does not disengage. In this case, any frame structure combining linear and right-angle shapes can be constructed using multiple leg frames. Furthermore, such arbitrary frame structure is difficult to disassemble (in other words, the engagement is difficult to disengage).

[0127] As described above, when the first frame section F1 and the second frame section F2 are at 90 degrees and / or 180 degrees when viewed in the direction along the first axis AX1, ensuring that the engagement between the first engagement section 12 and the second engagement section 24 of the second leg frame does not disengage is a useful configuration for constructing a frame structure that is difficult to disassemble. For example, Figure 35 shows an example of a two-section fire pit that is difficult to disassemble, but it is also possible to construct a three-section or four-section fire pit that is difficult to disassemble.

[0128] (Linear member M2, and second frame section F2) In the example shown in Figure 17, the plurality of linear members M2 constituting the second frame portion F2 include a first linear member M2-1 and a second linear member M2-2. Additionally, the plurality of linear members M2 constituting the second frame portion F2 may also include a third linear member M2-3.

[0129] Each of the multiple linear members M2 is made of, for example, metal (e.g., stainless steel). The shape of the cross-section of each of the multiple linear members M2 perpendicular to the longitudinal direction is, for example, circular.

[0130] In the example shown in Figure 17, the second frame portion F2 is formed by welding a plurality of linear members M2. The second frame portion F2 may have a closed shape that defines at least one opening (OP3; OP4). In the example shown in Figure 17, the second frame portion F2 includes a second ring body AB2 that defines the opening OP' and a lower linear portion 273 (more specifically, a third linear member M2-3).

[0131] In the example shown in Figure 17, the lower linear portion 273 (more specifically, the third linear member M2-3) divides the opening OP' defined by the second ring body AB2 into a second mounting member opening OP3 and a second lower opening OP4.

[0132] In the example shown in Figure 17, the second frame portion F2 defines a roughly X-shaped second lower opening OP4 below the second mounting member opening OP3.

[0133] In the example shown in Figure 17, the structure and shape of the "second frame portion F2," "linear member M2," "first side portion 21 of the second leg frame," "second side portion 23 of the second leg frame," "bottom portion 25 of the second leg frame," and "top portion 27 of the second leg frame" of the second leg frame 2 are the same (or similar) to the structure and shape of the "first frame portion F1," "linear member M1," "first side portion 11," "second side portion 13," "bottom portion 15," and "top portion 17" of the leg frame 1 illustrated in Figure 6.

[0134] Therefore, in the descriptions of "(linear member M1)", "(first frame part F1)", "(first side part 11)", "(second side part 13)", and "(bottom part 15)" in the first embodiment, by making the following substitutions, the descriptions of "(linear member M1)", "(first frame part F1)", "(first side part 11)", "(second side part 13)", and "(bottom part 15)" in the first embodiment shall be considered as descriptions of "linear member M2", "second frame part F2", "first side part 21 of the second leg frame", "second side part 23 of the second leg frame", and "bottom part 25 of the second leg frame", respectively.

[0135] More specifically, in the description of "(linear member M1)", "(first frame part F1)", "(first side part 11)", "(second side part 13)", and "(bottom part 15)" in the first embodiment, "first frame part F1", "first side part 11", "second side part 13", "bottom part 15", "top part 17", "linear member M1", "first linear member M1-1", "second linear member M1-2", "third linear member M1-3", "first end part e1-2", "second end part e2-1", "first ring body AB1", "upper linear part 171", "first end part e1-3", "second end part e2-3", "upper engaging part 12 -1", "Second lateral linear part 130", "Bottom linear part 150", "Fourth linear member M1-4", "First lateral linear part 110", "Lower linear part 173", "Opening OP", "Mounting member mounting opening OP1", "Lower opening OP2", "First part F1-1", "Second part F1-2", "Linear part 170", "First engaging part 12", "First protruding engaging part 12a-1", "Recess 173d", "First end 96a", "Straight part 175", "First straight part 175a", "Second straight part 175b", "Lower engaging part 12-2", "First recess 113d", "Straight part 1 "15", "First linear portion 115a", "Second linear portion 115b", "Second engaging portion 14", "Upper engaging portion 14-1", "Lower engaging portion 14-2", "Second recess 133d", "Linear portion 135", "Third recess 153d", "Linear portion 155", "Leg frame 1", "Figure 6", "Figure 7", "Figure 8", "Figure 9" are respectively referred to as "Second frame portion F2", "First side portion 21 of second leg frame", "Second side portion 23 of second leg frame", "Bottom portion 25 of second leg frame", "Top portion 27 of second leg frame", "Linear member M2", "First linear member M2-1", "Second linear member M 2-2", "Third linear member M2-3", "First end e4-2", "Second end e5-1", "Second ring body AB2", "Upper linear part 271", "First end e4-3", "Second end e5-3", "Upper engaging part 22-1", "Second lateral linear part 230", "Bottom linear part 250", "Fourth linear member M2-4", "First lateral linear part 210", "Lower linear part 273", "Opening OP'", "Second mounting member opening OP3", "Second lower opening OP4", "Third part F2-1", "Fourth part F2-2", "Linear part 270", "Second leg frame first engaging part 22","Third protruding engagement part 22a-1", "Recess 273d", "Second end 96b", "Straight portion 275", "First straight portion 275a", "Second straight portion 275b", "Lower engagement part 22-2", "Fourth recess 213d", "Straight portion 215", "First straight portion 215a", "Second straight portion 215b", "Second leg frame second engagement part 24", "Upper engagement part 24-1", "Lower engagement part 24-2", "Fifth recess 233d", "Straight portion 235", "Sixth recess 253d", By substituting "linear portion 255," "second leg frame 2," "Figure 17," "Figure 17," "Figure 17," and "Figure 18," the descriptions of "(linear member M1)," "(first frame portion F1)," "(first side portion 11)," "(second side portion 13)," and "(bottom portion 15)" in the first embodiment are considered to be descriptions of "linear member M2," "second frame portion F2," "first side portion 21 of the second leg frame," "second side portion 23 of the second leg frame," and "bottom portion 25 of the second leg frame," respectively, in the second embodiment.

[0136] The shape of the second leg frame 2 may be substantially the same as that of the leg frame 1.

[0137] (Second leg frame first engagement part 22) As illustrated in Figure 4, the first engaging portion 22 of the second leg frame can engage with the engaging portion of another leg frame (for example, the second engaging portion 34 of the third leg frame 3).

[0138] In the example shown in Figure 17, the first engaging portion 22 of the second leg frame includes a protruding engaging portion 22a. The protruding engaging portion 22a is, for example, an engaging portion that protrudes downward. The first engaging portion 22 of the second leg frame may include an upper engaging portion 22-1 and a lower engaging portion 22-2 positioned below the upper engaging portion 22-1. In the example shown in Figure 17, each of the upper engaging portion 22-1 and the lower engaging portion 22-2 includes a protruding engaging portion 22a. Also, in the example shown in Figure 17, each of the upper engaging portion 22-1 and the lower engaging portion 22-2 protrudes downward.

[0139] In the example shown in Figure 17, at least a portion of the protruding engagement portion 22a is made up of a portion of the linear member M2 (more specifically, the end portion of the linear member M2 itself). More specifically, the protruding engagement portion 22a includes a third protruding engagement portion 22a-1, and at least a portion of the third protruding engagement portion 22a-1 is made up of the first end portion e4-1 of the first linear member M2-1.

[0140] In the example shown in Figure 17, the protruding engaging portion 22a includes a fourth protruding engaging portion 22a-2. Furthermore, at least a portion of the fourth protruding engaging portion 22a-2 is formed by the second end portion e5-2 of the second linear member M2-2.

[0141] In the example shown in Figure 17, the third protruding engagement portion 22a-1 is located at the top of the second frame portion F2 (in other words, the top of the second leg frame 27). In the example shown in Figure 17, the third protruding engagement portion 22a-1 is located opposite the first linear portion 215a. The third protruding engagement portion 22a-1 may also be located substantially parallel to the first linear portion 215a.

[0142] In the example shown in Figure 17, the fourth protruding engagement portion 22a-2 is located on the first side portion 21 of the second leg frame of the second frame portion F2. In the example shown in Figure 17, the fourth protruding engagement portion 22a-2 is located opposite the second linear portion 215b. The fourth protruding engagement portion 22a-2 may also be located substantially parallel to the second linear portion 215b.

[0143] In the example shown in Figure 2, the third protruding engagement portion 22a-1 and the fourth protruding engagement portion 22a-2 each extend along the third axis AX3, and each of the third protruding engagement portion 22a-1 and the fourth protruding engagement portion 22a-2 is located on the third axis AX3. In the example shown in Figure 2, the third axis AX3 is substantially parallel to the first axis AX1.

[0144] In the example shown in Figure 19, the protruding engagement portion 22a (more specifically, the third protruding engagement portion 22a-1) includes the end of the linear member M2 (more specifically, the first end e4-1 of the first linear member M2-1) and a second additional member 221a attached to the said end (more specifically, the first end e4-1). In the example shown in Figure 19, the second additional member 221a is welded to the end of the linear member M2 (more specifically, the first end e4-1 of the first linear member M2-1). The second additional member 221a functions as a disengagement prevention portion that prevents the protruding engagement portion 22a from disengaging from the other leg frame. In the example shown in Figure 19, the extending direction of the second additional member 221a is substantially parallel to the extending direction of the end of the linear member M2 (more specifically, the first end e4-1 of the first linear member M2-1).

[0145] In the example shown in Figure 17, the base of the protruding engaging portion 22a is supported by a portion WD to which two linear members M2 are welded. More specifically, the base of the third protruding engaging portion 22a-1 is supported by a portion WD3 to which two linear members M2 are welded (more specifically, a portion WD3 to which the first linear member M2-1 and the second linear member M2-2 are welded). The base of the fourth protruding engaging portion 22a-2 is supported by a portion WD4 to which two linear members M2 are welded (more specifically, a portion WD4 to which the first linear member M2-1 and the second linear member M2-2 are welded).

[0146] (Second leg frame second engagement part 24) In the example shown in Figure 19, the second engaging portion 24 of the second leg frame has a shape complementary to the shape of the first engaging portion 22 of the second leg frame (more specifically, the protruding engaging portion 22a). The second engaging portion 24 of the second leg frame includes, for example, a ring-shaped engaging portion 24a. In the example shown in Figure 2, the protruding engaging portion 12a of the leg frame 1 can be inserted into the ring-shaped engaging portion 24a.

[0147] The central axis of the ring-shaped engaging portion 24a is preferably aligned in the vertical direction. The ring-shaped engaging portion 24a only needs to be substantially ring-shaped. In other words, the ring-shaped engaging portion 24a may be a completely closed annular body or an incomplete annular body with a small gap.

[0148] In the example shown in Figure 19, the through-hole 24h defined by the ring-shaped engaging portion 24a is an elongated hole. In the example shown in Figure 19, the major axis of the through-hole 24h (more specifically, the elongated hole) is approximately parallel to the direction of extension of the upper linear portion 271.

[0149] The second leg frame second engagement portion 24 may include an upper engagement portion 24-1 and a lower engagement portion 24-2 positioned below the upper engagement portion 24-1. In the example shown in Figure 19, each of the upper engagement portion 24-1 and the lower engagement portion 24-2 includes a ring-shaped engagement portion 24a.

[0150] In the example shown in Figure 19, the second engaging portion 24 of the second leg frame (more specifically, the ring-shaped engaging portion 24a) is welded to the linear member M2. More specifically, the third ring-shaped engaging portion 24a-1, which serves as the upper engaging portion 24-1, is welded to the first linear member M2-1. In addition, the fourth ring-shaped engaging portion 24a-2, which serves as the lower engaging portion 24-2, is welded to the first linear member M2-1.

[0151] In the example shown in Figure 19, the second leg frame second engagement portion 24 (more specifically, the ring-shaped engagement portion 24a) is located on the second side portion 23 of the second leg frame of the second frame portion F2.

[0152] In the example shown in Figure 2, the first axis AX1 passes through both the third ring-shaped engagement portion 24a-1 and the fourth ring-shaped engagement portion 24a-2.

[0153] (1st usage form) Figures 3 and 21 show a first usage configuration of the combination of multiple leg frames CM. As illustrated in Figure 21, in the first usage configuration, the first engaging portion 12 of the first frame portion F1 and the second engaging portion 24 of the second leg frame of the second frame portion F2 are engaged, and the bonfire stand body portion 9a (more specifically, the bonfire stand firebed) as a mounting member 9 is supported by the frame structure ST1 including the first frame portion F1 and the second frame portion F2, with the first frame portion F1 positioned approximately perpendicular to the second frame portion F2 in a plan view.

[0154] Figure 22 shows a second usage configuration of the combination of multiple leg frames CM. In the example shown in Figure 22, a second mounting member opening OP3 (see Figure 17) is provided in the second frame portion F2 of the second leg frame 2.

[0155] In the second usage configuration, the first frame section F1 and the second frame section F2, supporting the top plate 9c, are arranged in a roughly V-shape when viewed from the front, such that one side 91 of the top plate 9c, which serves as a mounting member 9, is held in place by the mounting member mounting opening OP1 of the first frame section F1, and the other side 92 of the top plate 9c is held in place by the second mounting member mounting opening OP3 of the second frame section F2.

[0156] In the examples shown in Figures 21 and 22, both the first and second usage modes are achievable. Since users can select any usage mode from among multiple usage modes of the leg frame combination CM, the degree of freedom of choice for the user is increased.

[0157] (Third leg frame 3) As illustrated in Figure 23, the combination CM of multiple leg frames in the second embodiment may include a leg frame 1, a second leg frame 2, and a third leg frame 3.

[0158] Since the leg frame 1 and the second leg frame 2 have already been described in the first or second embodiment, a repetitive explanation of the leg frame 1 and the second leg frame 2 will be omitted.

[0159] As illustrated in Figure 24, the third leg frame 3 comprises (1) a third frame portion F3 composed of one or more linear members M3, and (2) a third leg frame engagement portion provided on the third frame portion F3 and capable of engaging with other leg frames (for example, a third leg frame first engagement portion 32 capable of engaging with the second engagement portion 14 of leg frame 1).

[0160] As illustrated in Figure 24, the third frame portion F3 may include a first side portion 31 of the third leg frame, a second side portion 33 of the third leg frame, a bottom portion 35 of the third leg frame, and a top portion 37 of the third leg frame.

[0161] (Linear member M3, and third frame portion F3) In the example shown in Figure 25, the plurality of linear members M3 constituting the third frame portion F3 include a first linear member M3-1 and a second linear member M3-2. Additionally, the plurality of linear members M3 constituting the third frame portion F3 may also include a third linear member M3-3.

[0162] Each of the multiple linear members M3 is made of, for example, metal (e.g., stainless steel). The shape of the cross-section of each of the multiple linear members M3 perpendicular to the longitudinal direction is, for example, circular.

[0163] In the example shown in Figure 25, the third frame portion F3 is formed by welding a plurality of linear members M3. The third frame portion F3 may have a closed shape that defines at least one opening (OP5; OP6). In the example shown in Figure 25, the third frame portion F3 includes a third ring body AB3 that defines the opening OP'' and a lower linear portion 373 (more specifically, a third linear member M3-3).

[0164] In the example shown in Figure 25, the lower linear portion 373 (more specifically, the third linear member M3-3) divides the opening OP'' defined by the third ring body AB3 into a third mounting member attachment opening OP5 and a third lower opening OP6.

[0165] In the example shown in Figure 25, the third frame portion F3 defines a roughly X-shaped third lower opening OP6 below the third mounting member opening OP5.

[0166] In the example shown in Figure 25, the structure and shape of the "third frame section F3", "linear member M3", "first side section 31", "second side section 33", "bottom section 35", and "top section 37" of the third leg frame 3 are the same as (or similar to) the structure and shape of the "first frame section F1", "linear member M1", "first side section 11", "second side section 13", "bottom section 15", and "top section 17" of the leg frame 1 illustrated in Figure 6.

[0167] Therefore, in the description of "(linear member M1)", "(first frame part F1)", "(first side part 11)", "(second side part 13)", and "(bottom part 15)" in the first embodiment, by making the following substitutions, the descriptions of "(linear member M1)", "(first frame part F1)", "(first side part 11)", "(second side part 13)", and "(bottom part 15)" in the first embodiment shall be considered as descriptions of "linear member M3", "third frame part F3", "third leg frame first side part 31", "third leg frame second side part 33", and "third leg frame bottom part 35", respectively.

[0168] More specifically, in the description of "(linear member M1)", "(first frame part F1)", "(first side part 11)", "(second side part 13)", and "(bottom part 15)" in the first embodiment, "first frame part F1", "first side part 11", "second side part 13", "bottom part 15", "top part 17", "linear member M1", "first linear member M1-1", "second linear member M1-2", "third linear member M1-3", "first end part e1-2", "second end part e2-1", "first ring body AB1", "upper linear part 171", "first end part e1-3", "second end part e2-3", "upper engagement "Part 12-1", "Second lateral linear part 130", "Bottom linear part 150", "Fourth linear member M1-4", "First lateral linear part 110", "Lower linear part 173", "Opening OP", "Mounting member mounting opening OP1", "Lower opening OP2", "First part F1-1", "Second part F1-2", "Linear part 170", "First engaging part 12", "First protruding engaging part 12a-1", "Recess 173d", "Straight part 175", "First straight part 175a", "Second straight part 175b", "Lower engaging part 12-2", "First recess 113d", "Straight part 115", "First linear portion 115a", "Second linear portion 115b", "Second engaging portion 14", "Upper engaging portion 14-1", "Lower engaging portion 14-2", "Second recess 133d", "Linear portion 135", "Third recess 153d", "Linear portion 155", "Leg frame 1", "Figure 6", "Figure 7", "Figure 8", and "Figure 9" are respectively referred to as "Third frame portion F3", "First side portion 31 of the third leg frame", "Second side portion 33 of the third leg frame", "Bottom portion 35 of the third leg frame", "Top portion 37 of the third leg frame", "Linear member M3", "First linear member M3-1", and "Second linear member M3-2 ", "Third linear member M3-3", "First end e7-2", "Second end e8-1", "Third ring body AB3", "Upper linear part 371", "First end e7-3", "Second end e8-3", "Upper engaging part 32-1", "Second lateral linear part 330", "Bottom linear part 350", "Fourth linear member M3-4", "First lateral linear part 310", "Lower linear part 373", "Opening OP''", "Third mounting member attachment opening OP5", "Third lower opening OP6", "Fifth part F3-1", "Sixth part F3-2", "Linear part 370", "Third leg frame first engaging part 32","Fifth protruding engagement part 32a-1", "Recess 373d", "Straight portion 375", "First straight portion 375a", "Second straight portion 375b", "Lower engagement part 32-2", "Seventh recess 313d", "Straight portion 315", "First straight portion 315a", "Second straight portion 315b", "Third leg frame second engagement part 34", "Upper engagement part 34-1", "Lower engagement part 34-2", "Eighth recess 333d", "Straight portion 335", "Ninth recess 353d", "Straight portion By substituting "355", "Third Leg Frame 3", "Figure 25", "Figure 25", "Figure 25", and "Figure 26", the descriptions of "(linear member M1)", "(first frame section F1)", "(first side section 11)", "(second side section 13)", and "(bottom section 15)" in the first embodiment shall be considered as descriptions of "linear member M3", "Third frame section F3", "First side section 31 of the third leg frame", "Second side section 33 of the third leg frame", and "Bottom section 35 of the third leg frame", respectively, in the second embodiment.

[0169] The shape of the third leg frame 3 may be substantially the same as that of the leg frame 1.

[0170] (Third leg frame first engagement part 32) In the example shown in Figure 24, the first engaging portion 32 of the third leg frame can engage with the second engaging portion 14 of the leg frame 1.

[0171] In the example shown in Figure 25, the first engagement portion 32 of the third leg frame includes a protruding engagement portion 32a. The first engagement portion 32 of the third leg frame may also include an upper engagement portion 32-1 and a lower engagement portion 32-2 positioned below the upper engagement portion 32-1. In the example shown in Figure 25, each of the upper engagement portion 32-1 and the lower engagement portion 32-2 includes a protruding engagement portion 32a.

[0172] In the example shown in Figure 25, the protruding engagement portion 32a includes a fifth protruding engagement portion 32a-1, and at least a portion of the fifth protruding engagement portion 32a-1 is formed by the first end portion e7-1 of the first linear member M3-1.

[0173] In the example shown in Figure 25, the protruding engaging portion 22a includes a sixth protruding engaging portion 32a-2, and at least a portion of the sixth protruding engaging portion 32a-2 is formed by the second end portion e8-2 of the second linear member M3-2.

[0174] In the example shown in Figure 25, the fifth protruding engagement portion 32a-1 is located on the top of the third frame portion F3 (in other words, the top of the third leg frame 37). In the example shown in Figure 25, the sixth protruding engagement portion 32a-2 is located on the first side portion 31 of the third leg frame of the third frame portion F3.

[0175] In the example shown in Figure 24, the fifth protruding engagement portion 32a-1 and the sixth protruding engagement portion 32a-2 each extend along the second axis AX2, and the fifth protruding engagement portion 32a-1 and the sixth protruding engagement portion 32a-2 each are located on the second axis AX2. In the example shown in Figure 24, the second axis AX2 is the axis of rotation of the leg frame 1 relative to the third leg frame 3. More specifically, when the leg frame 1 and the third leg frame 3 are engaged, the leg frame 1 is rotatable about the second axis AX2 relative to the third leg frame 3.

[0176] In the example shown in Figure 27, the protruding engaging portion 32a (more specifically, the fifth protruding engaging portion 32a-1) includes the end of the linear member M3 (more specifically, the first end e7-1 of the first linear member M3-1) and a third additional member 321a attached to the said end (more specifically, the first end e7-1). In the example shown in Figure 27, the third additional member 321a is welded to the end of the linear member M3 (more specifically, the first end e7-1 of the first linear member M3-1).

[0177] (Third leg frame second engagement part 34) In the example shown in Figure 27, the second engaging portion 34 of the third leg frame has a shape complementary to the shape of the first engaging portion 32 of the third leg frame (more specifically, the protruding engaging portion 32a). The second engaging portion 34 of the third leg frame includes, for example, a ring-shaped engaging portion 34a.

[0178] The third leg frame second engagement portion 34 may include an upper engagement portion 34-1 and a lower engagement portion 34-2 positioned below the upper engagement portion 34-1. In the example shown in Figure 27, each of the upper engagement portion 34-1 and the lower engagement portion 34-2 includes a ring-shaped engagement portion 34a.

[0179] In the example shown in Figure 27, the second engaging portion 34 of the third leg frame (more specifically, the ring-shaped engaging portion 34a) is located on the second side portion 33 of the third leg frame of the third frame portion F3.

[0180] In the example shown in Figure 24, the first frame section F1, the second frame section F2, and the third frame section F3 can be connected in a roughly U-shape (in other words, roughly U-shape in a plan view) when viewed from above. In the example shown in Figure 24, the first engaging portion 12 of the first frame section F1 engages with the second engaging portion 24 of the second leg frame of the second frame section F2, and the second engaging portion 14 of the first frame section F1 engages with the first engaging portion 32 of the third leg frame of the third frame section F3, thereby connecting the first frame section F1, the second frame section F2, and the third frame section F3.

[0181] In the example shown in Figure 24, a frame structure ST1 that is roughly U-shaped in plan view (in other words, a frame structure ST1 that is roughly U-shaped in plan view) is formed by a first frame section F1, a second frame section F2, and a third frame section F3. This frame structure ST1 functions, for example, as a structure that supports the main body section 9a of the fire pit (see Figure 29). As illustrated in Figure 24, the frame structure ST1 that supports the main body section 9a of the fire pit (see Figure 29) may be composed only of three frame components: a first frame section F1, a second frame section F2, and a third frame section F3. In the example shown in Figure 24, the frame structure ST1 has a first leg section formed by the first frame section F1, a second leg section formed by the second frame section F2, and a third leg section formed by the third frame section F3. Furthermore, in the frame structure ST1, one side of the second leg (second frame section F2) and one side of the third leg (third frame section F3) are connected by the first leg (first frame section F1), and there is no leg between the other side of the second leg (second frame section F2) and the other side of the third leg (third frame section F3), leaving an open space.

[0182] In the example shown in Figure 24, when the first engaging portion 12 and the second engaging portion 24 of the second leg frame are engaged, and the first frame portion F1 and the second frame portion F2 are arranged substantially vertically in a plan view, the engagement between the first engaging portion 12 and the second engaging portion 24 of the second leg frame is prevented from disengaging. Also in the example shown in Figure 24, when the second engaging portion 14 and the first engaging portion 32 of the third leg frame are engaged, and the first frame portion F1 and the third frame portion F3 are arranged substantially vertically in a plan view, the engagement between the second engaging portion 14 and the first engaging portion 32 of the third leg frame is prevented from disengaging. Therefore, it is easy to lift and move the frame structure ST1, which is substantially U-shaped in a plan view (or the fire pit including the frame structure ST1, which is substantially U-shaped in a plan view, and the fire pit body portion 9a supported by the frame structure ST1). In other words, when moving the frame structure ST1, which is arranged in a roughly U-shape in a plan view, unintended disintegration of the frame structure ST1 is prevented.

[0183] On the other hand, in the example shown in Figure 24, the angle between the first frame section F1 and the third frame section F3 is changed to a predetermined angle other than 90 degrees or 180 degrees (for example, 45 degrees) in a plan view, and then the third frame section F3 is moved upward relative to the first frame section F1 along the second axis AX2, thereby allowing the third frame section F3 to be removed from the first frame section F1. Also, in the example shown in Figure 24, the angle between the first frame section F1 and the second frame section F2 is changed to a predetermined angle other than 90 degrees or 180 degrees (for example, 45 degrees) in a plan view, and then the first frame section F1 is moved upward relative to the second frame section F2 along the first axis AX1, thereby allowing the first frame section F1 to be removed from the second frame section F2.

[0184] In the example shown in Figure 28, the first frame section F1, the second frame section F2, and the third frame section F3 can be connected in a substantially equilateral triangle shape in plan view. In the example shown in Figure 28, the first engaging portion 12 of the first frame section F1 engages with the second engaging portion 24 of the second leg frame of the second frame section F2, the second engaging portion 14 of the first frame section F1 engages with the first engaging portion 32 of the third leg frame of the third frame section F3, and the first engaging portion 22 of the second leg frame of the second frame section F2 engages with the second engaging portion 34 of the third leg frame of the third frame section F3, thereby connecting the first frame section F1, the second frame section F2, and the third frame section F3 in a substantially equilateral triangle shape.

[0185] In the example shown in Figure 28, a frame structure ST1' that is approximately equilateral triangular in plan view is formed by a first frame section F1, a second frame section F2, and a third frame section F3. This frame structure ST1' functions, for example, as a structure that supports a tabletop of any shape (for example, a circular tabletop 9b as illustrated in Figure 4). As illustrated in Figure 28, the frame structure ST1' that supports a tabletop of any shape may consist only of three frame components: the first frame section F1, the second frame section F2, and the third frame section F3.

[0186] In the example shown in Figure 28, when the first frame section F1 and the second frame section F2 are at a 60-degree angle when viewed along the first axis AX1 (see Figure 2 if necessary), the engagement between the first engagement section 12 and the second engagement section 24 of the second leg frame is configured to be difficult to disengage. In this case, the frame structure ST1', which is roughly triangular in shape in plan view, is difficult to disassemble.

[0187] In the example shown in Figure 28, when the first frame section F1 and the third frame section F3 are at a 60-degree angle when viewed along the second axis AX2 (see Figure 2 if necessary), the engagement between the second engagement section 14 and the first engagement section 32 of the third leg frame is configured to be difficult to disengage. In this case, the frame structure ST1', which is roughly triangular in shape in plan view, is difficult to disassemble.

[0188] In the example shown in Figure 28, when the second frame section F2 and the third frame section F3 are at a 60-degree angle when viewed along the third axis AX3 (see Figure 2 if necessary), the engagement between the first engaging section 22 of the second leg frame and the second engaging section 34 of the third leg frame is configured to be difficult to disengage. In this case, the frame structure ST1', which is roughly triangular in shape in plan view, is difficult to disassemble.

[0189] In the example shown in Figure 28, the engagement between two frame sections positioned at a 60-degree angle may be released by relatively moving two adjacent leg frames so that they are offset from each other. In this case, it is possible to achieve both that the frame structure ST1', which is roughly triangular in shape in plan view, is difficult to disassemble and that the frame structure ST1' is disassembled.

[0190] (Third embodiment) Referring to Figures 1 to 35, the kit K1 including multiple leg frames in the third embodiment will be described. Figure 29 is a schematic perspective view showing the kit K1 including multiple leg frames in the third embodiment. Figure 30 is a schematic perspective view showing an example of a fire pit 100A. Figure 31 is a schematic perspective view showing how the fire pit is assembled from the kit K1 including multiple leg frames in the third embodiment. Figure 32 is a schematic perspective view showing the fire pit body 9a (more specifically, the fire bed) disassembled. Figure 33 is a schematic perspective view showing a change in the arrangement of the trivet 96. Figure 34 is a schematic perspective view showing a change in the arrangement of the trivet 96. Figure 35 is a schematic perspective view showing an example of a fire pit 100A.

[0191] In the third embodiment, the differences from the first and second embodiments will be described in detail, and repetitive explanations of matters already explained in the first or second embodiment will be omitted. Therefore, it goes without saying that even if not explicitly explained in the third embodiment, matters already explained in the first or second embodiment can be adopted in the third embodiment.

[0192] In the example shown in Figure 29, the kit K1 including multiple leg frames in the third embodiment comprises a leg frame 1, a second leg frame 2, a third leg frame 3, and a fire pit body 9a as a mounting member 9. Additionally, the kit K1 including multiple leg frames in the third embodiment may also include a trivet 96 and / or a grill plate 87.

[0193] As illustrated in Figure 29, the second leg frame 2 comprises (1) a second frame portion F2 composed of one or more linear members M2, and (2) a second leg frame engaging portion (e.g., second leg frame second engaging portion 24) provided on the second frame portion F2 and capable of engaging with other leg frames (e.g., leg frame 1). The third leg frame 3 comprises (1) a third frame portion F3 composed of one or more linear members M3, and (2) a third leg frame engaging portion (e.g., third leg frame first engaging portion 32) provided on the third frame portion F3 and capable of engaging with other leg frames (e.g., leg frame 1).

[0194] In the example shown in Figure 30, the first frame section F1, the second frame section F2, and the third frame section F3 can be connected in a roughly U-shape (in other words, roughly U-shaped in a plan view) when viewed from above. In the example shown in Figure 30, the first engaging portion 12 of the first frame section F1 engages with the second engaging portion 24 of the second leg frame of the second frame section F2, and the second engaging portion 14 of the first frame section F1 engages with the first engaging portion 32 of the third leg frame of the third frame section F3, thereby connecting the first frame section F1, the second frame section F2, and the third frame section F3.

[0195] In the example shown in Figure 30, the main body 9a of the fire pit comprises a first side wall 951, a second side wall 952, a third side wall 953, and a main body bottom 954. The main body 9a of the fire pit defines a fuel receiving space SP1 (more specifically, a fuel receiving space SP1 for receiving fuel such as firewood or charcoal). In the example shown in Figure 30, the fuel receiving space SP1 is surrounded on all four sides by the first side wall 951, the second side wall 952, the third side wall 953, and the main body bottom 954, with the remaining two sides (more specifically, the front and the top) being open. In the example shown in Figure 30, the entire front and the entire top of the main body 9a of the fire pit are open.

[0196] In the example shown in Figure 30, the main body 9a of the fire pit comprises (1) a first side wall 951 (more specifically, a rear wall), a second side wall 952 (more specifically, a left side wall), and a third side wall 953 (more specifically, a right side wall) which can be positioned opposite the first frame section F1, the second frame section F2, and the third frame section F3, respectively; (2) the bottom of the main body 954; (3) the front opening Q1; and (4) the top opening Q2.

[0197] In the example shown in Figure 30, the main body of the fire pit 9a is supported by a frame structure ST1 which includes a first frame section F1, a second frame section F2, and a third frame section F3.

[0198] The third embodiment provides the same effects as the first or second embodiment. Furthermore, the fire pit 100A can be easily assembled from the kit K1, which includes multiple leg frames in the third embodiment. Moreover, the first frame section F1, the second frame section F2, and the third frame section F3 can be connected in a roughly U-shape in plan view, and the fire pit body section 9a has a front opening Q1, so that fuel (e.g., firewood) can be easily added to the fuel receiving space SP1 through the front opening Q1 while the fire pit 100A is in use.

[0199] (Optional additional configuration) Next, with reference to Figures 1 to 35, we will describe optional additional configurations that can be adopted in the kit K1, which includes multiple leg frames in the third embodiment.

[0200] (Leg frame 1, second leg frame 2, third leg frame 3) Since the leg frame 1, second leg frame 2, and third leg frame 3 have already been described in the first or second embodiment, a repetitive explanation of the leg frame 1, second leg frame 2, and third leg frame 3 will be omitted.

[0201] (Campfire stand main body 9a) In the example shown in Figure 30, the main body of the fire pit 9a includes a first side wall 951. The top 951u of the first side wall 951 is provided with a first hook portion 951t that can be hooked onto the top 17 of the first frame portion F1 (more specifically, the lower linear portion 173 of the top 17). In the example shown in Figure 30, the first hook portion 951t can be hooked onto the lower linear portion 173 of the first frame portion F1 (more specifically, the first linear portion 175a and the second linear portion 175b) by inserting the first hook portion 951t into the mounting opening OP1 of the mounting member and then moving the first hook portion 951t downwards.

[0202] In the example shown in Figure 30, the main body of the fire pit 9a includes a second side wall 952. The top 952u of the second side wall 952 is provided with a second hook portion 952t that can be hooked onto the top of the second frame portion F2 (more specifically, the lower linear portion 273 of the top 27 of the second leg frame). In the example shown in Figure 30, the second hook portion 952t can be hooked onto the lower linear portion 273 of the second frame portion F2 (more specifically, the first linear portion 275a and the second linear portion 275b) by inserting the second hook portion 952t into the second mounting member opening OP3 and then moving the second hook portion 952t downwards.

[0203] In the example shown in Figure 30, the main body of the fire pit 9a is provided with a third side wall 953. The top 953u of the third side wall 953 is provided with a third hook portion 953t that can be hooked onto the top of the third frame portion F3 (more specifically, the lower linear portion 373). In the example shown in Figure 30, the third hook portion 953t can be hooked onto the lower linear portion 373 of the third frame portion F3 (more specifically, the first linear portion 375a and the second linear portion 375b) by inserting the third hook portion 953t into the third mounting member opening OP5 and then moving the third hook portion 953t downwards.

[0204] In the example shown in Figure 30, the main body 9a of the fire pit includes a main body bottom 954. In the example shown in Figure 31, the main body bottom 954 is engageable with the bottom 951w of the first side wall 951 (more specifically, the hook portion of the bottom 951w). In the example shown in Figure 31, the main body bottom 954 is engageable with the bottom 952w of the second side wall 952 (more specifically, the hook portion of the bottom 952w). In the example shown in Figure 31, the main body bottom 954 is engageable with the bottom 953w of the third side wall 953 (more specifically, the hook portion of the bottom 953w).

[0205] As illustrated in Figure 32, the main body 9a of the fire pit may be decomposable into elements including a first side wall 951, a second side wall 952, a third side wall 953, and a main body bottom 954. In the example shown in Figure 31, the first side wall 951 is attached to the first frame F1, the second side wall 952 is attached to the second frame F2, and the third side wall 953 is attached to the third frame F3, after which the main body bottom 954 can be attached to the first side wall 951, the second side wall 952, and the third side wall 953.

[0206] Alternatively, at least one of the first side wall 951, the second side wall 952, and the third side wall 953 may be connected to the bottom of the main body 954 in a foldable manner.

[0207] (Grill plate 87, and guide rail 954r) In the example shown in Figure 30, the bottom of the main body 954 has a guide rail 954r that slidably supports the grill plate 87. More specifically, the bottom of the main body 954 has a bottom wall 954d of the fuel receiving space SP1 and a guide rail 954r positioned below the bottom wall 954d.

[0208] In the example shown in Figure 30, the grill plate 87 can be stored in the space below the bottom wall 954d. Furthermore, with the grill plate 87 stored below the bottom wall 954d, the heat generated in the fuel receiving space SP1 can be used to heat the food placed on the grill plate 87 (for example, pizza).

[0209] In the example shown in Figure 30, the grill plate 87 can be pulled out along the guide rail 954r on the bottom 954 of the main body. In this case, it is easy to store the grill plate 87 with food placed on it before heating in the storage position below the bottom wall 954d. Also, it is easy to remove the grill plate 87 with food placed on it after heating from the storage position below the bottom wall 954d.

[0210] As illustrated in Figure 30, in this specification, the direction from the rear of the fire pit body 9a toward the front opening Q1 of the fire pit body 9a is defined as the first direction DR1. In the example shown in Figure 30, the grill plate 87 may be completely detachable from the guide rail 954r by pulling it out in the first direction DR1 from its storage position below the bottom wall 954d. If the grill plate 87 is completely detachable from the guide rail 954r, the grill plate 87 with heated food (e.g., pizza) placed on it can be moved directly to the table.

[0211] As illustrated in Figure 30, in this specification, the direction from the front opening Q1 of the fire pit body 9a toward the rear of the fire pit body 9a is defined as the second direction DR2. The second direction DR2 is the opposite direction to the first direction DR1. In the example shown in Figure 30, the grill plate 87 may be completely detachable from the guide rail 954r by pulling it out in the second direction DR2 from its storage position below the bottom wall 954d. The grill plate 87 may be pullable out in both the first direction DR1 and the second direction DR2 from its storage position below the bottom wall 954d.

[0212] The grill plate 87 may have a handle portion 871 (more specifically, a hole portion 871h into which a finger can be inserted).

[0213] (Trivet 96) In the example shown in Figure 29, the trivet 96 has a mounting portion 961 on which cooking utensils can be placed, and a ring body 966 that protrudes downward from the mounting portion 961. The trivet 96 may also have a first end portion 960a that protrudes downward from the mounting portion 961, and a second end portion 960b that protrudes downward from the mounting portion 961.

[0214] Because the ring body 966 protrudes downward from the mounting portion 961, it is prevented from moving to a position away from directly above the fuel receiving space SP1. More specifically, in the example shown in Figure 33(a), when the ring body 966 moves from directly above the fuel receiving space SP1 toward the first frame portion F1, the ring body 966 collides with the upper end of the first frame portion F1. In this way, it is prevented from moving across the upper end of the first frame portion F1 to a position away from directly above the fuel receiving space SP1. In the example shown in Figure 33(b), when the ring body 966 moves from directly above the fuel receiving space SP1 toward the first frame portion F1 and the second frame portion F2, the ring body 966 collides with the upper end of the first frame portion F1 and the upper end of the second frame portion F2. In this way, the ring body 966 is prevented from moving to a position away from directly above the fuel receiving space SP1 by crossing the upper end of the first frame portion F1 or the upper end of the second frame portion F2. In the example shown in Figure 33(c), when the ring body 966 moves from directly above the fuel receiving space SP1 toward the first frame portion F1 and the third frame portion F3, the ring body 966 collides with the upper end of the first frame portion F1 and the upper end of the third frame portion F3. In this way, the ring body 966 is prevented from moving to a position away from directly above the fuel receiving space SP1 by crossing the upper end of the first frame portion F1 or the upper end of the third frame portion F3.

[0215] If the member protruding downward from the mounting portion 961 is a ring body 966, the inner portion of the ring body 966 allows the passage of flame or air heated by fuel. Therefore, the ring body 966 does not obstruct the heating of the cooking utensil.

[0216] In the example shown in Figure 33, the ring body 966 has a substantially octagonal shape. When the ring body 966 has a substantially octagonal shape, as illustrated in Figure 33(a), the first side T1 of the multiple sides of the octagonal shape can be made to line contact with the first frame part F1. Furthermore, when the two sides of the multiple sides of the octagonal shape adjacent to the first side T1 are defined as the second side T2 and the third side T3, as illustrated in Figure 33(b), the second side T2 and the third side T3 can be made to line contact with the second frame part F2 and the first frame part F1, respectively. Furthermore, as illustrated in Figure 33(c), the second side T2 and the third side T3 can be made to line contact with the first frame part F1 and the third frame part F3, respectively.

[0217] Therefore, when the ring body 966 has a substantially octagonal shape, the arrangement of the trivet 96 can be selected from the three arrangements shown in Figures 33(a), 33(b), and 33(c), and the trivet 96 can be positioned appropriately.

[0218] In the example shown in Figure 29, the mounting portion 961 has a plurality of linear portions, including a first linear portion N1, a second linear portion N2, and a third linear portion N3. In the example shown in Figure 29, the first linear portion N1 is parallel to the second linear portion N2, and the second linear portion N2 is parallel to the third linear portion N3.

[0219] In the example shown in Figure 29, the trivet 96 has a first end 96a and a second end 96b.

[0220] As illustrated in Figure 29, the first end portion 96a may have a first end portion projection 960a that protrudes downward. In the example shown in Figure 33(a), the first end portion 96a (more specifically, the first end portion projection 960a) is hookable onto the second frame portion F2 (for example, the upper linear portion 271 of the second frame portion F2). Alternatively, or additionally, as illustrated in Figure 34(a), the first end portion 96a (more specifically, the first end portion projection 960a) may be hookable onto the lower linear portion 273 of the second frame portion F2 and / or the top of the second side wall 952 of the fire pit body portion 9a.

[0221] As illustrated in Figure 29, the second end portion 96b may have a second end-side projection 960b that protrudes downward. In the example shown in Figure 33(a), the second end portion 96b (more specifically, the second end-side projection 960b) is hookable onto the third frame portion F3 (for example, the upper linear portion 371 of the third frame portion F3). Alternatively, or additionally, as illustrated in Figure 34(a), the second end portion 96b (more specifically, the second end-side projection 960b) may be hookable onto the lower linear portion 373 of the third frame portion F3 and / or the top of the third side wall 953 of the fire pit body portion 9a.

[0222] In the example shown in Figure 34(b), the trivet 96 can be placed over the upper linear portion 271 of the second frame portion F2 and the upper linear portion 371 of the third frame portion F3, and in the example shown in Figure 34(a), the trivet 96 can be placed over the lower linear portion 273 of the second frame portion F2 (more specifically, the recess 273d of the second frame portion F2) and the lower linear portion 373 of the third frame portion F3 (more specifically, the recess 373d of the third frame portion F3).

[0223] In the examples shown in Figures 34(a) and 34(b), the trivet usage configuration can be selected between a first trivet usage configuration in which the trivet 96 is stretched between the upper linear portion 271 of the second frame portion F2 and the upper linear portion 371 of the third frame portion F3, and a second trivet usage configuration in which the trivet 96 is stretched between the lower linear portion 273 of the second frame portion F2 (more specifically, the recess 273d of the second frame portion F2) and the lower linear portion 373 of the third frame portion F3 (more specifically, the recess 373d of the third frame portion F3). The height of the trivet 96 in the second trivet usage configuration (see Figure 34(a)) is lower than the height of the trivet 96 in the first trivet usage configuration (see Figure 34(b)). In the examples shown in Figures 34(a) and 34(b), the heat applied to the cooking appliance placed on the trivet 96 can be adjusted by adjusting the height of the trivet 96.

[0224] (Fourth leg frame 4, fifth leg frame 5, sixth leg frame 6, and second fire pit main body 9a-2) As illustrated in Figure 35, the kit K1 including multiple leg frames in the third embodiment may include a fourth leg frame 4 having a fourth frame section F4, a fifth leg frame 5 having a fifth frame section F5, and a sixth leg frame 6 having a sixth frame section F6. Alternatively, the kit K1 including multiple leg frames in the third embodiment may include a second fire pit body section 9a-2 supported by a frame structure (hereinafter referred to as "second frame structure ST2") that includes the fourth frame section F4, the fifth frame section F5, and the sixth frame section F6.

[0225] The fourth leg frame 4 may have substantially the same shape as the third leg frame 3 (or leg frame 1). The fifth leg frame 5 may have substantially the same shape as the second leg frame 2 (or leg frame 1). The sixth leg frame 6 may have substantially the same shape as leg frame 1.

[0226] In the example shown in Figure 35, the first engaging portion 22 of the second leg frame of the second frame section F2 (more specifically, the protruding engaging portion 22a) can engage with the second engaging portion 44 of the fourth leg frame of the fourth frame section F4. Also, the second engaging portion 34 of the third leg frame of the third frame section F3 (more specifically, the ring-shaped engaging portion 34a) can engage with the first engaging portion 52 of the fifth leg frame of the fifth frame section F5. Furthermore, the second engaging portion 54 of the fifth leg frame of the fifth frame section F5 can engage with the first engaging portion 62 of the sixth leg frame of the sixth frame section F6. Also, the second engaging portion 64 of the sixth leg frame of the sixth frame section F6 can engage with the first engaging portion 42 of the fourth leg frame of the fourth frame section F4.

[0227] In the example shown in Figure 35, the first frame section F1, the second frame section F2, the third frame section F3, the fourth frame section F4, the fifth frame section F5, and the sixth frame section F6 can be connected in a roughly rectangular shape in plan view. In this case, a larger frame structure can be formed compared to the case where only the three frame sections are connected in a roughly U-shape in plan view.

[0228] In the example shown in Figure 35, the main body of the fire pit 9a is supported by a frame structure ST1 which includes a first frame section F1, a second frame section F2, and a third frame section F3. Also in the example shown in Figure 35, the second main body of the fire pit 9a-2 is supported by a second frame structure ST2 which includes a fourth frame section F4, a fifth frame section F5, and a sixth frame section F6.

[0229] As illustrated in Figure 35, a trivet 96 may be placed on each of the frame structure ST1 and the second frame structure ST2.

[0230] In the example shown in Figure 35, the main body of the fire pit 9a defines the fuel receiving space SP1, and the second main body of the fire pit 9a-2 defines the second fuel receiving space SP2. Furthermore, the second fuel receiving space SP2 is connected to the fuel receiving space SP1. Therefore, the fire pit 100A illustrated in Figure 35 can provide an expanded fuel receiving space.

[0231] (Fourth embodiment) The kit K2, which includes multiple leg frames in the fourth embodiment, will be described with reference to Figures 1 to 38. Figure 36 is a schematic perspective view showing the kit K2, which includes multiple leg frames in the fourth embodiment. Figure 37 is a schematic perspective view showing how the shelf 100D is assembled from the kit K2, which includes multiple leg frames in the fourth embodiment. Figure 38 is a schematic perspective view showing the kit K2, which includes multiple leg frames in the fourth embodiment.

[0232] In the fourth embodiment, the differences from the first and second embodiments will be described in detail, and repetitive explanations of matters already described in the first or second embodiment will be omitted. Therefore, it goes without saying that even if not explicitly described in the fourth embodiment, matters already described in the first or second embodiment can be adopted in the fourth embodiment.

[0233] In the example shown in Figure 36, the kit K2, which includes a plurality of leg frames in the fourth embodiment, comprises a leg frame 1, a second leg frame 2, and a top plate 9c as a mounting member 9.

[0234] The second leg frame 2 comprises (1) a second frame portion F2 having a second mounting member opening OP3 defined by one or more linear members M2, and (2) a second leg frame engaging portion provided on the second frame portion F2 and capable of engaging with other leg frames (for example, a second leg frame first engaging portion 22, and / or a second leg frame second engaging portion 24).

[0235] In the example shown in Figure 36, one side 91 of the top plate 9c can be attached to the mounting member opening OP1 of the first frame section F1. The other side 92 of the top plate 9c can be attached to the second mounting member opening OP3 of the second frame section F2.

[0236] The fourth embodiment provides the same effects as the first or second embodiment. Furthermore, a table (more specifically, the elongated table 100C illustrated in Figure 22) can be easily assembled from the kit K2, which includes multiple leg frames, in the fourth embodiment.

[0237] (Optional additional configuration) Next, with reference to Figures 1 to 38, we will describe optional additional configurations that can be adopted in kit K2, which includes multiple leg frames in the fourth embodiment.

[0238] (Leg frame 1, second leg frame 2) Since the leg frame 1 and the second leg frame 2 have already been described in the first or second embodiment, a repetitive explanation of the leg frame 1 and the second leg frame 2 will be omitted.

[0239] (Tabletop 9cm) In the example shown in Figure 5, the leg frame 1 and the second leg frame 2, with the top plate 9c supported, can be arranged in a roughly V-shape when viewed from the front, such that one side 91 of the top plate 9c is held by the mounting opening OP1 of the leg frame 1, and the other side 92 of the top plate 9c is held by the second mounting opening OP3 of the second leg frame 2.

[0240] One side 91 of the tabletop 9c is held by the mounting opening OP1 of the leg frame 1, thereby preventing or suppressing relative movement of the tabletop 9c with respect to the leg frame 1. The other side 92 of the tabletop 9c is held by the second mounting opening OP3 of the second leg frame 2, thereby preventing or suppressing relative movement of the tabletop 9c with respect to the second leg frame 2. Furthermore, the tabletop 9c is stably supported by the leg frame 1 and the second leg frame 2 because the leg frame 1 and the second leg frame 2 are arranged in a roughly V-shape.

[0241] More specifically, the arrangement of leg frame 1 and second leg frame 2 in a roughly V-shape means that each of leg frame 1 and second leg frame 2 is inclined with respect to the ground surface such that the distance between the upper end of leg frame 1 and the upper end of second leg frame 2 is smaller than the distance between the lower end of leg frame 1 and the lower end of second leg frame 2.

[0242] As illustrated in Figures 36 and 37, the top plate 9c may have a recess 93 into which the bottom of another leg frame (3;4) supporting the second top plate 9c-2 can be fitted. In this case, the recess 93 in the top plate 9c can support the bottom of the other leg frame (3;4).

[0243] In the example shown in Figure 37, kit K2, which includes multiple leg frames, includes leg frame 1, second leg frame 2, top plate 9c which is a mounting member 9, third leg frame 3, fourth leg frame 4, and second top plate 9c-2 which is a second mounting member 9-2. Furthermore, a shelf 100D can be assembled using leg frame 1, second leg frame 2, top plate 9c, third leg frame 3, fourth leg frame 4, and second top plate 9c-2, with top plate 9c and second top plate 9c-2 as shelves and leg frame 1, second leg frame 2, third leg frame 3, and fourth leg frame 4 as shelf support members.

[0244] Since the leg frame 1, the second leg frame 2, and the tabletop 9c have already been explained using Figures 1 to 36, a repetitive explanation of the leg frame 1, the second leg frame 2, and the tabletop 9c will be omitted. In the example shown in Figure 37, the second tabletop 9c-2 has the same shape as the tabletop 9c. Also, the third leg frame 3 has the same shape as the leg frame 1, and the fourth leg frame 4 has the same shape as the second leg frame 2.

[0245] In the example shown in Figure 37, a first recess 93a is formed on one side 91 of the top plate 9c, into which a part of the bottom of the third frame part F3 (more specifically, one straight portion 355 of the bottom of the third frame part F3) can be fitted, and a second recess 93b is formed into which another part of the bottom of the third frame part F3 (more specifically, another straight portion 355 of the bottom of the third frame part F3) can be fitted. Furthermore, a third recess 93c is formed on the other side 92 of the top plate 9c, into which a part of the bottom 45 of the fourth frame part F4 (more specifically, one straight portion of the bottom 45) can be fitted, and a fourth recess 93d is formed into which another part of the bottom 45 of the fourth frame part F4 (more specifically, another straight portion 455 of the bottom 45) can be fitted.

[0246] As illustrated in Figure 38, the kit K2 in the fourth embodiment, which includes multiple leg frames, may comprise a leg frame 1, a second leg frame 2, a top plate 9c as a mounting member 9, a third leg frame 3, and a fire pit body 9a. Additionally, the kit K2 in the fourth embodiment, which includes multiple leg frames, may also comprise a trivet 96 and / or a grill plate 87. Since the leg frame 1, second leg frame 2, top plate 9c, third leg frame 3, fire pit body 9a, trivet 96, and grill plate 87 have already been described, a repeated explanation of these components will be omitted.

[0247] The present invention is not limited to the embodiments or modifications described above, and it is clear that each embodiment or modification can be appropriately modified or changed within the scope of the technical concept of the present invention. Furthermore, the various technologies used in each embodiment or modification can be applied to other embodiments or other modifications, as long as no technical inconsistencies arise. In addition, any optional additional configurations in each embodiment or modification can be omitted as appropriate. [Explanation of symbols]

[0248] 1: Leg frame 2: Second leg frame 3: Third leg frame 4: Fourth leg frame 5: Fifth leg frame 6: Sixth leg frame 9: Mounting member 9-2: Second mounting member 9a: Fire pit main body 9a-2: Second fire pit main body 9b: Top plate 9c: Top plate 9c-2: Second top plate 11: First side 12: First engaging part 12-1: Upper engagement part 12-2: Lower engagement part 12a:Protruding engagement part 12a-1: First protruding engagement portion 12a-2: Second protruding engaging part 13: Second side part 14: Second engaging part 14-1: Upper engaging part 14-2: Lower engaging part 14a: Ring-shaped engaging part 14a-1: First ring-shaped engaging part 14a-2: Second ring-shaped engaging part 14h: Through hole 15: Bottom part 17: Top part 21: First side part of the second leg frame [[ID=2"]]22: First engaging part of the second leg frame 22-1: Upper engaging part 22-2: Lower engaging part 22a: Protruding engaging part 22a-1: Third protruding engaging part 22a-2: Fourth protruding engaging part 23: Second side part of the second leg frame 24: Second engaging part of the second leg frame 24-1: Upper engaging part 24-2: Lower engaging part 24a: Ring-shaped engaging part 24a-1: Third ring-shaped engaging part 24a-2: Fourth ring-shaped engaging part 24h: Through hole 25: Bottom part of the second leg frame 27: Top part of the second leg frame 31: First side part of the third leg frame 32: First engaging part of the third leg frame 32-1: Upper engaging part 32-2: Lower engaging part [[ID="]]32a: Protruding engaging part 32a-1: Fifth protruding engaging part 32a-2: Sixth protruding engaging part 33: Second side part of the third leg frame 34: Second engaging part of the third leg frame 34-1: Upper engaging part 34-2: Lower engaging part 34a: Ring-shaped engaging part 35: Bottom of the third leg frame 37: Top of the third leg frame 42: First engaging part of the fourth leg frame 44: Second engaging part of the fourth leg frame 45: Bottom 52: First engaging part of the fifth leg frame 54: Second engaging part of the fifth leg frame 62: First engaging part of the sixth leg frame 64: Second engaging part of the sixth leg frame 83: Binding material 87: Grill plate 91: One side part of the top plate[[ID=?]] 92: The other side part of the top plate 93: Depression 93a: First depression 93b: Second depression 93c: Third depression 93d: Fourth depression 96: Hearth ? 96a: First end 96b: Second end 100A: Bonfire stand 100B: Round table 100C: Elongated table 100D: Shelf 110: First lateral linear part 113d: First recess 115: Linear part 115a: First linear part 115b: Second linear part 121a: First additional member 130: Second lateral linear part 133d: Second recess 135: Linear part 150: Bottom linear part 153d: Third recess 155: Linear part 170: Linear part 171: Upper linear part 173: Lower linear part (注:原文中“ ”后的“[[ID=?]]”疑似有误,已按原样保留并翻译。)173d: recess 175: Straight part 175a: First straight section 175b: Second straight section 210: First lateral linear portion 213d: Fourth recess 215: Straight part 215a: First straight section 215b: Second linear section 221a: Second additional member 230: Second lateral linear portion 233d: Fifth recess 235: Straight section 250: Bottom linear part 253d: Sixth recess 255: Straight section 270: Linear part 271: Upper linear portion 273: Lower linear portion 273d: recess 275: Straight part 275a: First straight section 275b: Second linear section 310: First lateral linear portion 313d: 7th recess 315: Straight section 315a: First straight section 315b: Second linear section 321a: Third additional member 330: Second lateral linear portion 333d: Eighth recess 335: Straight part 350: Bottom linear part 353d: 9th recess 355: Straight part 370: Linear part 371: Upper linear portion 373: Lower linear portion 373d: recess 375: Straight section 375a: First straight section 375b: Second linear section 455: Straight section 871: Handle part 871h: Hole 951: First side wall 951t: First hook section 951u:Top 951w: Bottom 952: Second side wall 952t: Second hook section 952u:Top 952w: Bottom 953: Third side wall 953t: Third hook section 953u:Top 953w: Bottom 954: Bottom of main body 954d:Bottom wall 954r: Guide rail 960a: First end side protrusion 960b: Second end side protrusion 961: Mounting section 966: Ring Body AB1: First ring body AB2: Second ring body AB3: Third ring body AX1: 1st axis AX2: 2nd axis AX3: 3rd axis CM: Combination of multiple leg frames DR1: 1st direction DR2: 2nd direction F1: First frame section F1-1: 1st part F1-2: 2nd part F2: Second frame section F2-1: 3rd part F2-2: 4th part F3: Third frame section F3-1: 5th part F3-2: 6th part F4: Fourth frame section F5: Fifth frame section F6: 6th frame section K, K1, K2: Kits including multiple leg frames M1: Linear member M1-1: First linear member M1-2: Second linear member M1-3: Third linear member M1-4: Fourth linear member M2: Linear member M2-1: First linear member M2-2: Second linear member M2-3: Third linear member M2-4: Fourth linear member M3: Linear member M3-1: First linear member M3-2: Second linear member M3-3: Third linear member M3-4: Fourth linear member N1: 1st linear part N2: 2nd linear part N3: 3rd linear part OP: Opening OP': Opening OP'': Opening OP1: Mounting opening for mounting member OP2: Lower opening OP3: Second mounting member opening OP4: Second lower opening OP5: Third mounting member opening OP6: Third lower opening Q1:Front side opening Q2: Top side opening SP1: Fuel receiving space SP2: Second fuel receiving space ST1: Frame structure ST1': Frame structure ST2: Second frame structure T1: First side T2: Second side T3: Third side WD, WD1, WD2, WD3, WD4: Sections where two linear members are welded together. e1-1: 1st end e1-2: First end e1-3: First end e2-1: Second end e2-2: Second end e2-3: Second end e4-1: 1st end e4-2: 1st end e4-3: 1st end e5-1: Second end e5-2: Second end e5-3: Second end e7-1: First end e7-2: First end e7-3: First end e8-1: Second end e8-2: Second end e8-3: Second end α1: Vertex angle α2: Vertex angle α3: Vertex angle α4: Vertex angle

Claims

1. A first frame portion having a first side portion, a second side portion, a bottom portion, and a top portion to which a mounting member is attached, and composed of one or more linear members, A first engaging portion is provided on the first frame portion and is capable of engaging with other leg frames. It is equipped with, The top portion has a mounting opening for a mounting member defined by one or more of the linear members. Leg frame.

2. The mounting opening for the mounting member is defined by a plurality of linear portions, including an upper linear portion and a lower linear portion located below the upper linear portion. The leg frame according to claim 1.

3. The lower linear portion has a recess that is indented downwards. The leg frame according to claim 2.

4. The first frame portion defines a substantially X-shaped lower opening below the mounting opening for the mounting member described above. A leg frame according to any one of claims 1 to 3.

5. The first engaging portion includes a first additional member that functions as an engagement prevention portion to prevent the engagement between the first engaging portion and other leg frames from disengaging. The first additional member is attached to the end of the linear member. A leg frame according to any one of claims 1 to 3.

6. A leg frame according to any one of claims 1 to 3, Second leg frame and It is equipped with, The aforementioned second leg frame is, A second frame portion composed of one or more linear members, A second leg frame engagement portion is provided on the second frame portion and is capable of engaging with other leg frames. Equipped with A combination of multiple leg frames.

7. When the first engaging portion and the second leg frame engaging portion are engaged, and the first frame portion and the second frame portion are arranged substantially vertically in a plan view, the engagement between the first engaging portion and the second leg frame engaging portion is prevented from disengaging. When the first engaging portion and the second leg frame engaging portion are engaged, and the first frame portion and the second frame portion are arranged in a straight line in a plan view, the engagement between the first engaging portion and the second leg frame engaging portion is prevented from disengaging. When the first engaging portion and the second leg frame engaging portion are engaged, and the first frame portion and the second frame portion are positioned at a predetermined angle other than 90 degrees or 180 degrees in a plan view, the engagement between the first engaging portion and the second leg frame engaging portion can be released. A combination of multiple leg frames as described in claim 6.

8. The second frame portion is provided with a second mounting opening for the mounting member. With the first engaging portion of the first frame portion and the second leg frame engaging portion of the second frame portion engaged, a first usage configuration can be realized in which the first frame portion is positioned substantially perpendicular to the second frame portion in a plan view, such that the bonfire stand body portion, which serves as the aforementioned support member, is supported by the frame structure including the first frame portion and the second frame portion. A second usage configuration can be realized in which the first and second frame sections, in a state supporting the top plate, are arranged in a substantially V-shape when viewed from the front, such that one side of the top plate, which serves as the mounting member, is held in place by the mounting member mounting opening of the first frame section, and the other side of the top plate is held in place by the second mounting member mounting opening of the second frame section. A combination of multiple leg frames as described in claim 6.

9. It further comprises a third leg frame having a third frame section, By connecting the first frame section, the second frame section, and the third frame section in a substantially U-shape in plan view, a frame structure in a substantially U-shape in plan view can be formed. By connecting the first frame section, the second frame section, and the third frame section in a substantially equilateral triangle shape in plan view, a frame structure in a substantially equilateral triangle shape in plan view can be formed. A combination of multiple leg frames as described in claim 6.

10. A leg frame according to any one of claims 1 to 3, The second leg frame, The third leg frame and The main body of the fire pit, which serves as the mounting member, It is equipped with, The aforementioned second leg frame is, A second frame portion composed of one or more linear members, A second leg frame engagement portion is provided on the second frame portion and is capable of engaging with other leg frames. Equipped with, The aforementioned tripod frame is A third frame portion composed of one or more linear members, A third leg frame engaging portion is provided on the third frame portion and is capable of engaging with other leg frames. Equipped with, The first frame section, the second frame section, and the third frame section can be connected in a substantially U-shape when viewed from above. The main body of the aforementioned fire pit is, A first side wall, a second side wall, and a third side wall, which can be positioned opposite the first frame portion, the second frame portion, and the third frame portion, respectively, The bottom of the main body and Front opening and Top surface opening and to define A kit that includes multiple leg frames.

11. It is further equipped with a trivet, The aforementioned trivet is, A mounting section on which cooking utensils can be placed, A ring body protruding downward from the mounting portion and has A kit comprising a plurality of leg frames as described in claim 10.

12. A fourth leg frame having a fourth frame section, A fifth leg frame having a fifth frame section, A sixth leg frame having a sixth frame section, A second fire pit body supported by a frame structure including the fourth frame section, the fifth frame section, and the sixth frame section. It is equipped with, The first frame section, the second frame section, the third frame section, the fourth frame section, the fifth frame section, and the sixth frame section can be connected in a substantially rectangular shape when viewed from above. A kit comprising a plurality of leg frames as described in claim 10.

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