Chair and chair legs thereof

Abstract

The utility model discloses a chair and chair legs thereof, relates to the technical field of chair legs, and comprises a central seat, the central seat further comprises a central shaft sleeve and a plurality of supporting pieces, the plurality of supporting pieces are arranged on the outer wall of the central shaft sleeve in an annular array, each supporting piece is sleeved with a supporting leg, and the supporting legs are arranged on the central shaft sleeve. The supporting piece is fixedly connected with the supporting leg through a fastener, and the supporting leg comprises a foot piece shell formed by stamping a metal plate and a stamping component which is fixed to the inner end of the foot piece shell and seals at least part of a lower opening of the foot piece shell. The stamping component is provided with a mounting groove allowing the supporting piece to be inserted therein, and a gap is reserved between the top of the stamping component and the inner top wall of the foot piece shell. The chair leg is formed by welding the foot piece shell and the stamping component, so that the production process is simpler; the length of the stamping component is shorter than that of the traditional integrally formed chair leg, so that the production cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of chair leg technology, and in particular to a chair and its legs. Background Technology

[0002] Chairs are a type of furniture widely used in daily life and work. They come in many varieties and have diverse functions to meet different usage needs.

[0003] An existing patent (publication number: CN221865215U) discloses a chair and its legs, including a chair leg body, multiple inner chair legs, and multiple outer chair legs. The chair leg body has a central hole for inserting and installing a chair seat support rod. The multiple inner chair legs are evenly distributed around the chair leg body and are integrally formed with the chair leg body. The multiple outer chair legs are respectively installed on the multiple inner chair legs. Through the above technical solution, the outer chair legs can be placed separately from the integrally formed chair leg body and inner chair legs. The closer the connection position between the outer chair legs and the inner chair legs is to the center of the chair leg body, the more space is saved, the overall support strength of the chair leg is better, and it is convenient for users to install and convenient for manufacturers to pack and transport.

[0004] The problem with the above solution is that the manufacturing process of the chair leg body is more complex than that of the modular type because it is molded as a single piece. At the same time, the consumption of raw materials is also greater when the chair leg body is molded as a single piece, resulting in increased costs. Therefore, we propose a chair leg design to solve the above problems. Utility Model Content

[0005] This utility model provides a chair and its legs, which solves the technical problems of complex and costly manufacturing processes for chair legs.

[0006] To solve the above-mentioned technical problems, this utility model provides a chair leg, including a central seat, the central seat further including a central bushing and support members. A plurality of support members are arranged in a circular array on the outer wall of the central bushing. Each support member is fitted with a support leg. The support member and the support leg are fixedly connected by fasteners. The support leg includes a foot shell formed by stamping a metal sheet, and a stamped member fixed to the inner end of the foot shell and closing at least a portion of the lower opening of the foot shell. The stamped member has a mounting groove for the support member to be inserted, and a gap is left between the top of the stamped member and the inner top wall of the foot shell.

[0007] Preferably, a limiting structure is further provided between the foot piece housing and the stamping member, at least a portion of the limiting structure is fixed to the inner end of the foot piece housing, and the remaining portion of the limiting structure is fixed to the inner end of the stamping member.

[0008] The above technical solution involves a limiting structure between the foot piece housing and the stamping component. At least part of the limiting structure is fixed to the inner end of the foot piece housing, and the remaining part of the limiting structure is fixed to the inner end of the stamping component. This facilitates accurate installation between the stamping component and the foot piece housing, and subsequently facilitates welding and fixing between the foot piece housing and the stamping component.

[0009] Preferably, the limiting structure includes a baffle disposed at the inner end of the stamping member and a retaining edge disposed at the inner end of the foot piece housing, at least a portion of the surface of the baffle conforming to the inner wall of the retaining edge, and the baffle abutting against the inner top wall of the foot piece housing.

[0010] The above technical solution is adopted: the limiting structure includes a baffle provided at the inner end of the stamping member and a retaining edge provided at the inner end of the foot piece housing. At least a part of the surface of the baffle is attached to the inner wall of the retaining edge, and the baffle abuts against the inner top wall of the foot piece housing, so that the stamping member and the foot piece housing are installed more tightly.

[0011] Preferably, the retaining edges at the inner ends of two adjacent foot plates are mutually abutting, and the baffle and the retaining edges are connected by welding.

[0012] The above technical solution is adopted: by the mutual abutment of the baffles at the inner ends of the two adjacent foot pieces, and by the welding connection between the baffle and the baffle, the firmness of the foot piece shell and the stamping component after welding is further increased, thereby increasing the support strength of the support leg.

[0013] Preferably, a caster fixing member is provided at the outer end of the foot plate housing, and a reinforcing rib connected to the caster fixing member is folded over at least one long side of the foot plate housing.

[0014] The above technical solution is adopted: by providing a caster fixing member at the outer end of the foot plate housing, and by folding a reinforcing rib connected to the caster fixing member on at least one long side of the foot plate housing, the support strength of the support leg is improved.

[0015] Preferably, the total length of the mounting groove is equal to or longer than the total length of the support member.

[0016] By adopting the above technical solution, the total length of the mounting groove is equal to or longer than the total length of the support member, and the total length of the mounting groove is the total length of the stamped component. Compared with the one-piece molded chair legs, this saves raw materials and reduces production costs.

[0017] Preferably, the three walls of the mounting groove are in contact with the three outer peripheral surfaces of the support member in the circumferential direction.

[0018] The above technical solution involves the three groove walls of the mounting groove contacting the three outer circumferential surfaces of the support member, allowing the support member to be tightly installed with the stamping component.

[0019] Preferably, the reinforcing rib is in the shape of a strip, and the reinforcing rib is arranged perpendicular to the inner sidewall of the foot piece housing.

[0020] The above technical solution is adopted: the reinforcing ribs are in the shape of strips and are set perpendicular to the inner wall of the foot plate shell to increase the support strength of the support leg.

[0021] Preferably, the reinforcing rib has a notch at one end near the caster fixing member, and the curvature of the notch is adapted to the caster fixing member.

[0022] The above technical solution involves creating a notch at one end of the reinforcing rib near the caster fixing component. The curvature of the notch matches the caster fixing component, facilitating its installation. Once the caster fixing component is installed, it is welded to the reinforcing rib, resulting in higher overall support strength for the support leg.

[0023] This application further provides a chair, the chair including the aforementioned type of chair legs.

[0024] Compared with related technologies, this utility model has the following beneficial effects:

[0025] 1. Compared with traditional chair legs, this utility model features a supporting leg. The supporting leg includes a foot shell formed by stamping metal sheet, and a stamped component fixed to the inner end of the foot shell and closing at least part of the lower opening of the foot shell. The stamped component has an installation groove for inserting a support member, and a gap is left between the top of the stamped component and the inner top wall of the foot shell. Compared with traditional one-piece chair legs, the advantages of this application are: First, this chair leg is welded together from the foot shell and the stamped component, which simplifies the manufacturing process; Second, the length of the stamped component is shorter than that of traditional one-piece chair legs, requiring less raw material and reducing production costs; Third, in terms of the supporting strength of the chair leg, the foot shell is provided with reinforcing ribs, therefore, the supporting strength of this chair leg is better. Attached Figure Description

[0026] Figure 1 A schematic diagram of the structure of a chair leg viewed from below;

[0027] Figure 2 A top view of the structure of a chair leg;

[0028] Figure 3 This is a split diagram of the supporting legs and the central seat in a chair leg.

[0029] Figure 4 A split bottom view of the supporting legs and the center seat in a chair leg;

[0030] Figure 5 This is a schematic diagram showing the disassembled structure of the leg shell and stamped components in a chair leg.

[0031] Figure 6 This is a schematic diagram showing the assembly of a chair leg's middle leg shell and a stamped component.

[0032] Figure 7 This is a schematic diagram of a chair leg where the supporting leg is fixed to the center seat.

[0033] The following are the labels in the diagram: 2. Center seat; 21. Center bushing; 22. Support component; 3. Support leg; 31. Foot plate housing; 32. Stamped component; 321. Mounting groove; 4. Caster fixing component; 5. Reinforcing rib; 51. Notch; 6. Limiting structure; 61. Edge guard; 62. Baffle; 8. Fastener. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0035] Example 1

[0036] like Figures 1-7 As shown, a chair leg includes a central seat 2, which further includes a central bushing 21 and a support member 22. Several support members 22 are arranged in a circular array on the outer wall of the central bushing 21. Each support member 22 is fitted with a support leg 3. The support member 22 and the support leg 3 are fixedly connected by fasteners 8. The support leg 3 includes a foot shell 31 formed by stamping metal sheet, and a stamped member 32 fixed to the inner end of the foot shell 31 and closing at least part of the lower opening of the foot shell 31. The stamped member 32 has a mounting groove 321 for the support member 22 to be inserted, and a gap is left between the top of the stamped member 32 and the inner top wall of the foot shell 31.

[0037] The support leg 3 includes a foot shell 31 formed by stamping metal sheet, and a stamped member 32 fixed to the inner end of the foot shell 31 and closing at least part of the lower opening of the foot shell 31. The stamped member 32 has a mounting groove 321 for the support member 22 to be inserted, and a gap is left between the top of the stamped member 32 and the inner top wall of the foot shell 31. Compared with the traditional one-piece molded chair leg, the advantages of this application are: First, the chair leg is welded together by the foot shell 31 and the stamped member 32, which is simpler in terms of production process; Second, the length of the stamped member 32 is shorter than that of the traditional one-piece molded chair leg, which uses less raw material and reduces production cost; Third, in terms of the support strength of the chair leg, the foot shell 31 is provided with reinforcing ribs 5, so the support strength of the chair leg is better.

[0038] Example 2

[0039] like Figure 5 As shown, a limiting structure 6 is also provided between the foot piece housing 31 and the stamping component 32. At least a part of the limiting structure 6 is fixed to the inner end of the foot piece housing 31, and the remaining part of the limiting structure 6 is fixed to the inner end of the stamping component 32, which facilitates accurate installation between the stamping component 32 and the foot piece housing 31, and then facilitates welding and fixing between the foot piece housing 31 and the stamping component 32.

[0040] like Figure 5 , Figure 6 As shown, the limiting structure 6 includes a baffle 62 disposed at the inner end of the stamping member 32 and a retaining edge 61 disposed at the inner end of the foot piece housing 31. At least a portion of the surface of the baffle 62 is attached to the inner wall of the retaining edge 61, and the baffle 62 abuts against the inner top wall of the foot piece housing 31, so that the stamping member 32 and the foot piece housing 31 are installed more tightly.

[0041] like Figure 2 , Figure 6 As shown, the baffles 61 at the inner ends of two adjacent foot shells 31 fit together and abut against each other, and the baffle 62 and the baffles 61 are connected by welding, which further increases the firmness of the foot shells 31 and the stamping components 32 after welding, thereby increasing the support strength of the support leg 3.

[0042] like Figure 6 As shown, a caster fixing member 4 is provided at the outer end of the foot plate housing 31, and a reinforcing rib 5 connected to the caster fixing member 4 is folded over at least one long side of the foot plate housing 31 to improve the support strength of the support leg 3.

[0043] like Figure 4As shown, the total length of the mounting groove 321 is equal to or longer than the total length of the support member 22. The total length of the mounting groove 321 is the total length of the stamped member 32. Compared with the one-piece molded chair leg, it saves raw materials and reduces production costs.

[0044] like Figure 3 , Figure 4 As shown, the three groove walls of the mounting groove 321 contact the three outer peripheral surfaces of the support member 22 in the circumferential direction, so that the support member 22 can be tightly installed with the stamping member 32.

[0045] like Figure 6 As shown, the reinforcing rib 5 is in the shape of a strip and is set perpendicular to the inner wall of the foot plate housing 31 to increase the support strength of the support leg 3. The end of the reinforcing rib 5 near the caster fixing part 4 has a notch 51. The curvature of the notch 51 is adapted to the caster fixing part 4 to facilitate the installation of the caster fixing part 4. After the caster fixing part 4 is installed, it is fixed to the caster fixing part 4 by welding through the reinforcing rib 5, so that the overall support strength of the support leg 3 is higher.

[0046] Example 3

[0047] Based on Embodiment 1 or Embodiment 2, this embodiment further provides a chair, which includes the aforementioned type of chair legs.

[0048] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A chair leg, characterized in that, The device includes a center seat (2), which further includes a center bushing (21) and a support member (22). The support member (22) is provided in a plurality of such members, which are arranged in a ring array on the outer wall of the center bushing (21). Each support member (22) is fitted with a support leg (3). The support member (22) and the support leg (3) are fixedly connected by fasteners (8). The support leg (3) includes a foot shell (31) formed by stamping metal sheet, and a stamped member (32) fixed to the inner end of the foot shell (31) and closing at least part of the lower opening of the foot shell (31). The stamped member (32) has a mounting groove (321) for the support member (22) to be inserted, and a gap is left between the top of the stamped member (32) and the inner top wall of the foot shell (31).

2. A chair leg according to claim 1, characterized in that, A limiting structure (6) is also provided between the foot piece housing (31) and the stamping member (32). At least a portion of the limiting structure (6) is fixed to the inner end of the foot piece housing (31), and the remaining portion of the limiting structure (6) is fixed to the inner end of the stamping member (32).

3. A chair leg according to claim 2, characterized in that, The limiting structure (6) includes a baffle (62) disposed at the inner end of the stamping member (32) and a retaining edge (61) disposed at the inner end of the foot piece housing (31). At least a portion of the surface of the baffle (62) is attached to the inner wall of the retaining edge (61), and the baffle (62) abuts against the inner top wall of the foot piece housing (31).

4. A chair leg according to claim 3, characterized in that, The baffles (61) at the inner ends of two adjacent foot shells (31) abut against each other, and the baffle (62) and the baffles (61) are connected by welding.

5. A chair leg according to claim 1, characterized in that, A caster fixing member (4) is provided at the outer end of the foot plate housing (31), and a reinforcing rib (5) connected to the caster fixing member (4) is folded over at least one long side of the foot plate housing (31).

6. A chair leg according to claim 1, characterized in that, The total length of the mounting groove (321) is equal to or longer than the total length of the support (22).

7. A chair leg according to claim 1, characterized in that, The three walls of the mounting groove (321) are in contact with the three outer peripheral surfaces of the support member (22) in the circumferential direction.

8. A chair leg according to claim 5, characterized in that, The reinforcing rib (5) is in the shape of a strip, and the reinforcing rib (5) is arranged perpendicular to the inner sidewall of the foot piece housing (31).

9. A chair leg according to claim 5, characterized in that, The reinforcing rib (5) has a notch (51) at one end near the caster fixing member (4), and the curvature of the notch (51) is adapted to the caster fixing member (4).

10. A chair, characterized in that, The chair includes a chair leg as described in any one of claims 1-9.

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