Foldable furniture assembly

Abstract

The utility model discloses a kind of foldable furniture components, which can independently adjust the height of furniture leg, to adjust the inclination angle of the surface (for example seat or tabletop) of furniture and user contact. This function enables even in outdoor environment, furniture can be set to the use state suitable for office use, and can compensate the case of ground inclination or unevenness. The furniture component can be constructed as a chair, sofa or table, and these furniture can be easily folded and unfolded, facilitating carrying and transportation. Various safety features can ensure that the furniture remains in the folding or unfolded state required by the user, preventing accidental state changes.

Description

Technical Field

[0001] This utility model relates to the field of furniture technology, specifically to a foldable furniture component, particularly suitable for height-adjustable chairs, sofas and tables used on uneven outdoor terrain. Background Technology

[0002] As people's lifestyles become increasingly mobile, the need to maintain familiar comfort and convenience in different environments is also growing. For example, while people used to separate camping from work and life, with the rise of the "digital nomad" group, more and more people want to work in an office-like environment outdoors. This necessitates furniture that supports such activities, such as chairs, sofas, and tables designed for extended use. This type of furniture must allow users to maintain a comfortable posture (usually seated) when working with a computer (such as a laptop), and the computer should be ergonomically positioned for easy viewing and typing. While furniture for typical home and office environments is structurally and functionally mature, furniture for atypical environments faces additional requirements, making its design more complex. One requirement is portability, facilitating outdoor transport and setup. Furthermore, in office or residential environments, the surfaces on which furniture is placed are usually flat; outdoors, the ground is often uneven, so outdoor furniture structures must compensate for this unevenness to provide a comfortable user experience.

[0003] While there have been attempts to provide portable furniture for outdoor use, these attempts still have shortcomings. For example, with Folding furniture (including chairs) sold by this brand can be used outdoors. While this type of furniture is generally lightweight, its chair design shifts the user's center of gravity towards the back and near the ground. While this posture is suitable for relaxing in a chair, it is extremely inconvenient when the user needs to work with a laptop in front of them (e.g., on a desk). Furthermore, the legs of these chairs have limited adjustment range and cannot be effectively leveled on uneven ground, thus limiting their use to flat surfaces. In addition, the relatively high price of these chairs limits their widespread adoption among consumers.

[0004] With Snow Peak TM Similar flaws exist in the brand's furniture. Despite its minimalist design and higher price, the chairs lower the user's center of gravity, making them unsuitable for laptop work, even if they are suitable for relaxation. Similarly, the legs of this type of furniture lack adjustability, hindering comfortable use on uneven surfaces.

[0005] same, Some of the brand's furniture is made from the same materials as some kayaks. While this type of furniture is lightweight and easy to use on flat beaches, its legs are not adjustable enough to meet the comfort requirements when working on uneven ground.

[0006] also, The camping chairs sold by the brand are foldable and can be stored in a bag, making them somewhat portable. However, despite their portability, the legs of these chairs lack sufficient adjustability, making them unsuitable for office use on uneven ground.

[0007] With the increasing popularity of the digital nomadic lifestyle, users are demanding more portable furniture that can be used for working or relaxing in outdoor environments. Existing foldable furniture (such as...) Snow Peak TM , Products from brands such as [brand name] generally have the following defects:

[0008] 1. Sitting with a low center of gravity is not conducive to prolonged use of office equipment such as laptops;

[0009] 2. The leg height cannot be adjusted independently, making it difficult to adapt to uneven ground;

[0010] 3. Poor structural stability and lack of multiple locking and safety mechanisms;

[0011] 4. High cost limits its widespread adoption.

[0012] Therefore, there is an urgent need for a foldable furniture component that is portable and foldable, highly independently adjustable, adaptable to complex terrain, supports office use, and is reasonably priced. Utility Model Content

[0013] The purpose of this invention is to provide a foldable furniture component that enables independent height adjustment of the furniture legs to adapt to uneven terrain, ensures that the user contact surfaces (such as seats and tabletops) are level or tilted as needed, improves the comfort and functionality of use in outdoor environments, and also has good portability, stability and safety.

[0014] To achieve the above objectives, this utility model provides a foldable furniture component, comprising:

[0015] Four leg joints, each of which has multiple recesses;

[0016] Multiple ratchet-type leg sleeves, each of which can be fitted onto the outside of one of the leg joints and is movable between the recesses along at least a portion of the length of the leg joint;

[0017] A plurality of toggle switches, wherein each of the toggle switches is connectable to one of the ratchet-type leg sleeves, and a portion of the toggle switch is detachably insertable into any of the recesses, wherein when the portion is inserted into any recess, it prevents the ratchet-type leg sleeve connected thereto from moving relative to the leg joint to which it is fitted.

[0018] A base frame, connectable to the furniture body, includes two leg sleeve assemblies and a central sub-assembly. The two leg sleeve assemblies are rotatably connected to the central sub-assembly. Each leg sleeve assembly includes two outer leg sleeves, and each leg joint is insertable into one of the outer leg sleeves to a depth defined by the position of a ratchet-type leg sleeve on that leg joint. The base frame switches between a folded configuration and an unfolded configuration by rotating the leg sleeve assemblies relative to the central sub-assembly.

[0019] Preferably, it further includes: two retaining clips disposed on one of the two leg sleeve assemblies; and two knobs formed on the two ratchet-type leg sleeves respectively, wherein when the base frame is in a folded configuration, each retaining clip is close to a corresponding knob, and the ratchet-type leg sleeve containing the knob is located on a leg joint inserted into the outer leg sleeve of the other leg sleeve assembly, and the retaining clips can engage with the knobs to secure the base frame in the folded configuration.

[0020] Preferably, each of the knobs is formed on one side of the corresponding ratchet leg sleeve, which is opposite to the side connected to the toggle switch.

[0021] Preferably, when the leg joint is inserted into the outer leg sleeve and contacts the ground in the unfolded configuration of the base frame, the length of each leg joint extending out of the outer leg sleeve and the angle of its contact with the ground can be adjusted independently.

[0022] Preferably, each of the leg joints includes a ball joint on which the foot joint is rotatably mounted.

[0023] Preferably, when the leg joint needs to contact the ground, each foot joint can rotate to the bottom of its ball joint; when the base frame is in a folded configuration, each foot joint can rotate to the side of its ball joint.

[0024] Preferably, it further includes one or more markers that can be inserted into one or more of the recesses, the recesses with the markers indicating the target recess into which the toggle switch should be inserted.

[0025] Preferably, the leg sleeve assembly is rotatably connected to the central sub-assembly by inserting bolts into holes in each leg sleeve assembly, and further includes at least two spring steel plates that, when the leg sleeve assembly is connected to the central sub-assembly, contact one of the leg sleeve assemblies and the central sub-assembly, and the spring steel plates are used to keep the base frame in the deployed position.

[0026] Preferably, the leg joint is at least partially hollow and has multiple openings on the side opposite to the side with the recess.

[0027] Preferably, the main body of the furniture is a chair, and the main body of the furniture includes:

[0028] Seats that can be connected to the base frame;

[0029] A backrest frame, rotatably connected to the base frame;

[0030] Backrest, provided on the backrest frame; and

[0031] A cushion may be fixed to the backrest and the seat, wherein the furniture body may rotate between a folded configuration in which the backrest is substantially parallel to the seat and an unfolded configuration in which the backrest frame is substantially perpendicular to the seat.

[0032] Preferably, the seat is made of polyethylene and has multiple recesses on the side facing the base frame.

[0033] Preferred options also include:

[0034] A retaining clip is disposed on the side of the seat facing the central sub-assembly; and

[0035] A rope, one end of which is fixed inside the backrest and the other end of which is close to the retaining clip when the furniture body is in a folded configuration, the rope being able to engage with the retaining clip to secure the furniture body in the folded configuration.

[0036] Preferably, the backrest comprises multiple interconnectable and separable layers.

[0037] Preferably, the cushion includes a backrest that can be fixed to the backrest and a seat cushion that can be fixed to the seat. The seat cushion includes a central seat cushion portion and two side wings located on both sides of the central seat cushion portion. The two side wings are respectively connected to the backrest through two support structures. Each support structure connects one side of the backrest and one side of a side wing. When the main body of the furniture is in an unfolded configuration, the two side wings are raised relative to the central seat cushion portion due to the tension applied by the support structures.

[0038] Preferably, the main body of the furniture is a sofa, and the main body of the furniture includes:

[0039] Seats that can be connected to the base frame;

[0040] A backrest frame, rotatably connected to the base frame;

[0041] Backrest, provided on the backrest frame; and

[0042] A cushion is fixed to the backrest frame and the seat, wherein the main body of the furniture is rotatable between a folded configuration in which the backrest is substantially parallel to the seat and an unfolded configuration in which the backrest frame is substantially perpendicular to the seat, wherein the backrest of the cushion is connected to the seat cushion portion via a support structure, and the structure of the seat cushion portion remains unchanged in both the folded and unfolded configurations.

[0043] Preferably, the main body of the furniture is a table, including a tabletop that can be connected to the base frame, and further comprising:

[0044] Two connectors, each disposed between the two outer leg sleeves of a leg sleeve assembly; and

[0045] Two locking levers, each connected to one of the connectors, wherein the locking levers prevent the base frame from entering a folding configuration in a locked state and allow the base frame to enter a folding configuration in an unlocked state.

[0046] Preferably, the central sub-component further includes:

[0047] Two connecting rods, each of the leg sleeve assemblies is connected to one of the connecting rods, and each of the connecting rods is provided with two table wing connecting extensions;

[0048] A desktop center support rod is connected to two of the connecting rods, and the locking rod is connected to the desktop center support rod;

[0049] Two table wing support sub-assemblies are rotatably connected to the table wing connection extension;

[0050] The main body of the furniture also includes table wings, each table wing being connected to a table wing support sub-assembly, wherein the main body of the furniture can switch between an unfolded configuration in which the table wings and the tabletop are on the same plane and a folded configuration in which the table wings are folded and attached to the tabletop and are on different planes.

[0051] Preferred options also include:

[0052] Four table wing locks;

[0053] Each of the table wing support subassemblies also includes two table wing lock slots, which, when inserted into the table wing lock slots, prevent the main body of the furniture from changing from a folded configuration to an unfolded configuration.

[0054] Preferably, each of the table wing locks is elongated and made of plastic.

[0055] Preferably, the desktop is made of polyethylene and has multiple recesses on the side facing the central sub-assembly.

[0056] Beneficial effects

[0057] 1. Independently adjustable height: By using a toggle switch in conjunction with the recess, the four legs can be adjusted independently to adapt to complex terrain;

[0058] 2. Ergonomically optimized: The sitting posture or working height is adjustable, making it suitable for long-term office use;

[0059] 3. Stable and safe structure: Multiple locking mechanisms ensure safe use and transportation;

[0060] 4. Easy to store and transport: The whole structure is foldable, and the folded size is small, allowing for stacking and storage;

[0061] 5. Multifunctional integration: The same component can be used to make chairs, sofas, and tables, making it highly versatile;

[0062] 6. Controllable cost: Simple structure, suitable for mass production. Attached Figure Description

[0063] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0064] Figure 1 This is a structural schematic diagram of the leg joint assembly of this utility model;

[0065] Figure 2 This is a schematic diagram of the structure of the leg sleeve assembly for a chair according to this utility model;

[0066] Figure 3 This is a schematic diagram of the leg sleeve assembly structure from another perspective;

[0067] Figure 4 This is a schematic diagram of the structure of a leg sleeve assembly used in sofas;

[0068] Figure 5 This is a structural schematic diagram of the chair frame of this utility model;

[0069] Figure 6 This is a structural schematic diagram of the sofa frame of this utility model;

[0070] Figure 7 This is a schematic diagram of the structure of the chair body after installation.

[0071] Figure 8 This is a schematic diagram of the structure of the sofa body after installation.

[0072] Figure 9 This is a schematic diagram of the backrest layer structure.

[0073] Figure 10 This is a schematic diagram of the overall structure of the table of this utility model;

[0074] Figure 11 This is a partial schematic diagram of the connection between the desktop and the base frame;

[0075] Figure 12 This is a schematic diagram of the table wing support assembly structure;

[0076] Figure 13 This is a magnified view of a portion of the table wing lock connection;

[0077] Figure 14 This is a diagram showing the stacked state of chairs, sofas, and tables after they have been folded. Detailed Implementation

[0078] In this manual, descriptions of the orientation of furniture components (e.g., front, back, top, bottom, top, bottom, right, left, above, below, etc.) refer to their positions in use and are used solely for ease of description and illustration. The use of these terms does not constitute any limitation, regardless of the placement of the furniture component itself.

[0079] The technical solution disclosed herein relates to a foldable furniture component that allows for independent adjustment of the furniture leg height, thereby adjusting the tilt angle of the surface (e.g., chair or table) in contact with the user. This feature enables the furniture to be configured for office use, even outdoors, and compensates for slopes or uneven terrain. The furniture component can be constructed in the form of a chair, sofa, or table, all of which are easy to fold and unfold for convenient transportation. Multiple safety features ensure that the furniture remains stably in the desired folded or unfolded state and prevent accidental changes in its orientation.

[0080] In one embodiment, a foldable furniture assembly is provided. The assembly includes: four leg joints, each joint having multiple recesses; multiple ratchet-type leg sleeves, each sleeve being sleeved onto a leg joint and movable between the recesses along at least a portion of the joint's length; multiple toggle switches, each toggle switch connected to a ratchet-type leg sleeve, a portion of which is detachably inserted into any recess; when the portion of a toggle switch is inserted into a recess, it prevents the connected ratchet-type leg sleeve from moving along the leg joint it is located in; a base frame connectable to a furniture body, the base frame including two leg sleeve sub-assemblies, each sub-assembly including two outer leg sleeves, the two sub-assemblies being rotatably connected to a central assembly; each leg joint being insertable into an outer leg sleeve, the insertion depth being limited by the position of the ratchet-type leg sleeve on that joint; the base frame being able to switch between a folded state and an unfolded state by rotation of the two leg sleeve assemblies relative to the central assembly.

[0081] Other embodiments will become apparent to those skilled in the art from the following detailed description, in which the contemplated best practices are described by way of example. It is understood that other different embodiments exist, and that certain details of these embodiments may be modified in various obvious ways without departing from their spirit and scope. Therefore, the accompanying drawings and detailed description should be considered illustrative rather than restrictive.

[0082] Depending on the implementation, the furniture component 100 described below can be configured as a chair (see Figure 7 ), sofa (see) Figure 8 ) or table (see Figure 10 In all embodiments, the furniture assembly includes four legs 11 (from...). Figure 2 (As shown at the beginning), its length can be adjusted independently to a large extent, so that the parts of the furniture component 100 that come into direct contact with the user (such as the seat of a chair or sofa, or the tabletop of a table) can be adjusted to be level (or set to other desired angles) even on uneven outdoor ground. Figure 1 This is a schematic diagram showing a leg joint assembly 10, which is part of a leg 11, configured according to one embodiment. (See attached diagram.) Figure 1As shown, the leg joint assembly of leg 11 includes a ratchet-type leg sleeve 13 disposed on leg joint 12. Leg joint 12 has multiple recesses 14, and the position of the ratchet-type leg sleeve 13 is adjustable along the length of leg joint 12. The position of the ratchet-type leg sleeve 13 on leg joint 12 is fixed by a toggle switch 15 connected to the ratchet-type leg sleeve 13, the main body 30 of which is inserted below a rod 16 formed on the ratchet-type leg sleeve 13. The ratchet-type leg sleeve 13 also has a through hole 31 through which a pin 32 passes; when the pin is inserted into the ratchet-type leg sleeve 13, the bottom surface of the toggle switch 15 can rotate around the pin. The toggle switch 15 includes a torsion spring 17 that presses the toggle switch 15 against the lever 16 (thus securing the toggle switch 15 to the ratchet-type leg sleeve 13) and pushes one end 18 of the toggle switch 15 into either recess 14 of the leg joint 12, thereby fixing the position of the toggle switch 15 on the leg joint 12. When it is necessary to change the position of the ratchet-type leg sleeve 13 on the leg joint 12, pressure can be applied to the end 19 not inserted into the recess 14 to disengage the end 18 from the current recess, thereby allowing the ratchet-type leg sleeve 13 to move along the leg joint 12; when the pressure is released from the end 19, the end 18 automatically inserts into another recess 14, fixing the ratchet-type leg sleeve 13 in the new position. In one embodiment, the position changes by half an inch (approximately 1.27 cm) for each adjustment of one recess 14 to an adjacent recess 14, but in other embodiments, other adjustment intervals may be used. Optionally, the marker 20 is detachably inserted into the recess 14 to mark a target recess 14 that should be used under specific terrain conditions.

[0083] To prevent the ratchet-type leg sleeve 13 from slipping off the end of the leg joint 12 away from the ground, the end 72 of the leg joint 12 may include a ratchet-type leg retainer 71, which can be fixed to the leg joint 12 by bolts 22, although other fixing methods may also be used. Since the leg joint 12 can be made of metal, in order to reduce weight, in addition to having recesses, the leg joint 12 may also be designed as a hollow structure and have other openings to reduce the amount of metal used.

[0084] When the furniture assembly is in use, the leg joint 12 near the ground includes a ball joint 23. The foot joint 24, which contacts the ground, is mounted on the ball joint 23 and secured to it by bolts 25 and screws 36, with the screws 36 inserted through tapered slots 35 in the ball joint 23, although other methods can also be used to secure the foot joint 24 to the ball joint 23. Because the bolts 25 have considerable adjustment space within the ball joint 23, the foot joint 24 can rotate around the ball joint 23. Therefore, when the furniture assembly is in use, the foot joint 24 can face the ground; and when the furniture assembly is folded and stored, the ball joint 23 can be rotated to turn the foot joint 24 to the side not facing the ground, thus simplifying the storage of the leg joint 12.

[0085] The ratchet-type leg sleeves 13 on at least two leg joints also include a button 42 formed on the side of the sleeve 13 opposite to the side connected to the toggle switch 15 (although the position may differ in other embodiments) for securing the legs 11 in place when the furniture assembly is in a folded state, as will be detailed below. Figure 2 and Figure 3 Further description.

[0086] The leg 11 also includes an outer leg sleeve 26 into which the leg joint 12 can be inserted. Figure 2 and Figure 3 This is a schematic diagram showing the leg assembly 28 for constituting the base frame 27 of a chair, each leg assembly 28 including two outer leg sleeves 26, configured according to one embodiment. Figure 2 and Figure 3 The diagram also shows leg joints 12 into which these outer leg sleeves 26 can be inserted. The depth to which the leg joint 12 is inserted into the outer leg sleeve 26 is determined by the position of the leg sleeve ratchet 24; the leg joint 12 cannot penetrate the outer leg sleeve 26 deeper than the position set by the ratchet-type leg sleeve 13 thereon. Therefore, the total length of each leg 11 depends on which recess 14 the ratchet-type leg sleeve 13 is fixed in on the leg joint 12, thus allowing independent adjustment of the length of each leg 11 by adjusting the recess 14 in which the ratchet-type leg sleeve 13 is fixed. Each outer leg sleeve 26 covers the top portion of the ratchet-type leg sleeve 13 and fits tightly to its exterior; therefore, the ratchet-type leg sleeve 13 is held within the outer leg sleeve 26 by friction and gravity (when the leg 11 is on the ground), requiring active user operation to remove the leg joint 12 from the outer leg sleeve 26.

[0087] The outer leg sleeve 26 is part of the leg sleeve assembly 28, which also includes a connecting rod 29 (also called a connector 29) connecting the two outer leg sleeves 26. The length of the connecting rod 29 depends on the type of furniture the furniture assembly realizes: shorter in chairs, longer in sofas or tables. For example, Figure 2 and Figure 3 The leg sleeve assembly 28 of the furniture assembly 100 when used as a chair is shown. Figure 4 This is a schematic diagram showing the leg sleeve assembly 28 when the furniture component is a sofa, wherein... Figure 4 The connecting rod shown is 29 times the length of the connecting rod. Figure 2 and Figure 3 The connecting rod 29 is longer. As further described below, the base frame 27 includes two leg sleeve assemblies 28, thus giving the furniture assembly a total of four legs 11. In other aspects not described, the leg sleeve assemblies 28 used to form chairs and sofas can be identical.

[0088] As further described below, the furniture assembly can switch between a folded and unfolded state, with two leg sleeve assemblies 28 used to hold the furniture assembly in the folded state. Each leg sleeve assembly 28 includes a mounting base 37, through which a central assembly 38 connects the assemblies 28 to form a complete base frame 27. Figure 2 As shown, on one of the leg sleeve assemblies 28, each mounting base 37 is provided with a retaining clip 39. When this assembly is used to form the chair assembly 100, the retaining clip 39 is mounted on the opposite sides of the mounting base 37 by bolts 40 and screws 41 (although other mounting methods are also possible). When used to form the sofa or table assembly 100, the retaining clip can be mounted on other parts of the base frame 27, such as on the rod 84 (e.g., Figure 6 (as shown in the sofa case) or on rod 82 (such as) Figure 11 (See table example). When the furniture assembly is in the closed state, the protrusion 42 on the leg joint 12 of the outer leg sleeve 26 inserted into the first leg sleeve assembly 28 approaches the retaining clip 39 on the mounting base 37 of the second leg sleeve assembly 28 (or other parts of the base 27 near the mounting base 37 of the second leg assembly 28), hooking the protrusion 42 onto the retaining clip 39, thereby preventing the two leg sleeve assemblies 28 from accidentally disengaging unless the user manually releases the protrusion 42 from the retaining clip 39. Although the retaining clip 39 and the protrusion 42 only need to be provided on one assembly 28, in other embodiments, they may be provided on both assemblies to enhance safety in the folded state or simplify the manufacturing process. In addition, a spring steel sheet 111 may be mounted on the mounting base 37 and wrapped around a protrusion (not shown) on the rod 84 to help maintain the stability of the base 27 and prevent the legs 11 from accidentally folding inward, helping the base to remain in the unfolded state. When a user applies pressure in an attempt to fold the leg 11, the spring steel sheet 111 disengages from the protrusion on the rod 84. Additionally, a cap 112 is inserted into the leg sleeve 26 from an opening 114 near the mounting base 37 to provide extra stability and limit the depth to which the rod 84 is inserted into the mounting base 37.

[0089] The assembly of the base frame 27 is completed by connecting the mounting bases 37 on the two components 28 to the central component 38, and the base frame 27 is then connected to other parts of the furniture assembly. Figure 5 This is a schematic diagram showing a chair frame 90, which includes a base frame 27 and a pivotally connected backrest frame 43, configured according to one embodiment. Figure 6This is a schematic diagram showing a sofa frame 191, which includes a base frame 27 and a pivotally connected backrest frame 43, configured according to one embodiment. A central assembly 38 includes two rods 84, each connected to a mounting base 37 of each of the two leg sleeve assemblies 28 by bolts 74, etc. One or more support rods 44 are connected between the two rods 84, providing additional structural support to the base frame to withstand greater weight. The number of support rods 44 depends on the type of furniture. For example, such as... Figure 5 As shown, when the main body of the furniture is a chair, only two support rods 44 are needed; however, when the furniture needs to support a greater weight (such as a sofa), more than two support rods 44 may be required.

[0090] When the furniture components form a chair, sofa, or other furniture for which the user typically needs to lean back, the backrest frame 43 is pivotally connected to the base frame 27. The backrest frame 43 includes a support tube 45 connected to both sides of a rectangular frame 46. The rectangular frame 46 may also include one or more support rods 50. Two hinges 47 are connected to the support tube 45 by welding or other means (although other connection techniques may also be used), located near both sides of the rectangular frame 46. The end of each hinge 47 not connected to the support tube 45 is rotatably connected to a mounting base 37. The hinges 47 are connected to the mounting base 37 on the same leg sleeve assembly 28. The connection between the hinges 47 and the mounting base 37 is achieved by bolts 40 and screws 41, the bolts passing through aligned holes in the mounting base 37 and the rod 84 to which it is connected. The connection between hinge 47 and mounting base 37 allows it to rotate relative to mounting base 37 with sufficient clearance so that even when cushioning pad 54 (described below) is mounted on base frame 27, after the user applies sufficient pressure to overcome the friction at the connection between hinge 47 and mounting base 37, the backrest frame 43 can still be folded to a position substantially parallel to central component 38 (folded state) or raised to a position substantially perpendicular to central component 38 (unfolded state).

[0091] The base frame 27, and in embodiments including the backrest frame 43, can serve as the mounting base for the furniture body (i.e., the part of the furniture that has the most contact with the user during use). Figure 7 This illustrates the installation of the chair body 51 according to one embodiment. Figure 5 A schematic diagram of the chair frame 90 shown. Figure 8 This illustrates the installation of the sofa body 51 according to one embodiment. Figure 6 A schematic diagram of the sofa frame 191 is shown. (As shown) Figure 7 and Figure 8 As shown, the furniture body of the chair and sofa includes: a seat 52 that can be connected to the base frame 27; a backrest 53 set on the backrest frame 43; and a cushioning pad 54 that can be fixed to the backrest and seat 52.

[0092] The seat 52 in the chair and sofa assembly may be made of polyethylene and has multiple recesses on the side facing the base frame 27 to reduce the weight of the seat 52 and improve its durability, although other materials or combinations of materials may be used in other embodiments.

[0093] The backrest 53 in the chair and sofa assembly may include a multi-layered structure. Figure 9 This is a schematic diagram showing the layers of the backrest 53, the backrest frame 43 of the chair, and the cushioning pad 54, configured according to one embodiment. On the user-facing side, the first layer is a shell 55, which may be made of plastic (or other materials), connected to a chair cushioning plate 56 made of polyethylene (or other plastics), which is connected to one side of the backrest frame 43 (i.e., the side facing the user sitting on the furniture). A backrest cover 60 (which may be made of plastic or other rigid materials) is connected to the opposite side of the backrest frame 43, opposite the chair cushioning plate 56. The cushioning pad 54 is secured to the shell 55 by being studded with fabric (or nylon or other materials). Similarly, the bottom portion of the cushioning pad 54 (described below) may also be studded to the seat 52, although other connection methods are also possible.

[0094] During assembly of the outer shell, the chair cushioning plate 56 and the backrest cover are connected to the metal backrest frame 43 by bolts and nuts (although other connection methods may also be used). The cushioning pad 55 can be connected to the outer shell 55 in various ways, such as by bolts and nuts, although other connection techniques may also be used.

[0095] The cord 57 is attached to the side of the chair cushioning plate 56 facing the backrest frame 43, and its end extends from the outside of the backrest after the backrest is assembled. When the furniture is in the folded state, the end of the cord 57 hooks onto the retaining clip (not shown) on the side of the seat 52 facing the base frame 27, thereby fixing the backrest 53 to the seat 52. The furniture assembly needs to be manually operated by the user to return to the unfolded state.

[0096] like Figure 8 and Figure 9As shown, the cushion 55 comprises several parts: a backrest 61 fixed to the backrest 53, and a seat cushion 62 fixed to the seat 52 (e.g., by bolts and nuts, although other connection methods may also be used). The seat cushion 62 further comprises a central portion 63 directly connected to the central assembly 38, and two side wings 64 located on either side of the central portion 63. Each side wing 64 is connected to the backrest 61 via a support structure 65, which connects to the side wing 113 of the backrest 61. In an embodiment where the furniture assembly 100 constitutes a chair, when a user sits on the chair and leans back against the side wing 113 of the backrest 61, the tension applied by the support structure 65 raises the side wing 64 relative to the central portion 63, thereby providing additional support for the sitter's buttocks and hips. When the furniture assembly 100 constitutes a sofa, the side wing 65 remains flush with the seat 52 even in the unfolded state (although in other embodiments, the side wing 65 of the sofa may also have a lifting function).

[0097] When furniture components 100 form a chair or sofa, the folding and unfolding methods are similar for both types of furniture. To fold the furniture into its unfolded state for transport, the user can pull the leg sleeve components 28 (along with the legs 11) closer together and hook the protrusion 42 on the leg joint 12 of one leg sleeve component 28 onto the retaining clip 39 of the other leg sleeve component 28 to secure the two legs. Optionally, the user can rotate the foot joints so that they are positioned on the side of the ball joint not facing the ground. The user also needs to press the backrest 53 downwards so that it is parallel to the seat 52 and secure this position by hooking the cord buckle 57 onto the retaining clip (originally written as 52, likely a typo, should be another component number) on the seat 52. To unfold the furniture into a usable state, the above operations must be performed in reverse.

[0098] While the base frame 27 can be connected to the backrest frame 43 to form a sofa or chair (or other types of furniture in other embodiments), the base frame 27 can also be used to form a table. Figure 10 This is a schematic diagram illustrating one embodiment of a table constructed from furniture components 100. In this embodiment, the furniture body is a tabletop 66 connected to a base frame 27. Figure 11 This is a schematic diagram showing one side of the tabletop 66 connected to the base frame 27, configured according to one embodiment. The tabletop 66 may be made of polyethylene (or other plastic) and may include a recess 67 for enhanced durability. The tabletop includes a central portion 68 and two tabletop wing panels 69 pivotally connected to the central portion. When the table is unfolded, the wing panels 69 are coplanar with the central portion 68; when the table needs to be folded, the wing panels 69 can be folded under the central portion 68. In this embodiment, the base frame 27 connected to the central portion 68 (e.g., by bolts and nuts) differs in some respects from the base frame 27 when the furniture assembly 100 constitutes a chair or sofa.

[0099] Specifically, each leg sleeve assembly 28 has two mounting seats 37 connected to connecting tubes 81 in the central assembly 38, which are located between the mounting seats 37 (thus, the base frame 27 contains two connecting tubes 81). The central assembly 38 also includes two connecting rods 82, each connecting rod 82 connecting to the two connecting tubes 81. A support rod 83 is located approximately equidistantly between the two connecting tubes 81 and connected to the connecting rods 82. The base frame 27 also includes two locking rods 84. One end of each locking rod 84 is connected to the support rod 83, and the other end is connected to one of the connecting rods 29 (the two locking rods 84 are connected to different connecting rods 29). Each locking rod 84 consists of two pivotally connected components. Each locking bar 84 also includes a sleeve 85 (which may be made of metal or other materials) that is movable along the length of the locking bar 84; when the sleeve 85 is located at the end of the locking bar 84 near the end of the connecting tube 81 and covers the connecting joint of the two parts, the two parts of the locking bar 84 cannot pivot, thereby locking the locking bar 84 in the extended state and preventing the leg 11 from folding inward (thereby preventing the base frame 27 from folding accidentally).

[0100] When the table needs to be folded, the user first removes the sleeve 85 from the connecting joint, allowing the two parts of the locking bar 84 to pivot relative to each other. The user can then fold the leg sleeve assembly 28 inwards, causing the legs 11 to fold in. The tabletop wing panel 69 can also be folded under the central section 68 to reduce the overall size. When folded, the entire table has a compact structure, making it easy to carry and store.

[0101] Figure 12 This is a schematic diagram showing a desktop wing support assembly located above the desktop wing 69, configured according to one embodiment. The support assembly is used to stabilize the desktop wing 69 when the table is unfolded, preventing it from sagging or wobbling. The support assembly may include support arms and fasteners to ensure that the wing 69 remains level and stable when under load.

[0102] Figure 13 This is a schematic diagram showing a portion of the furniture components constituting a table, illustrating the insertion of a locking mechanism into the connecting extension and hollow extension of the tabletop wing panel, configured according to one embodiment. This locking mechanism is used to lock the tabletop wing panel 69 into place when it is unfolded, ensuring the overall stability and security of the tabletop. When the wing panel 69 is unfolded, the locking mechanism inserts into the corresponding extension to prevent accidental folding.

[0103] Figure 14 It shows chair 101. Figure 8 Sofa 102 shown and Figure 10 The illustration shows tables stacked on top of each other in their folded state. This design allows multiple pieces of furniture to be compactly stored when not in use, saving space and facilitating transportation and outdoor carrying. The folded furniture components have a regular shape and can be stacked stably, improving the convenience of storage and handling.

Claims

1. A foldable furniture component, characterized in that, include: Four leg joints, each of which has multiple recesses; Multiple ratchet-type leg sleeves, each of which can be fitted onto the outside of one of the leg joints and is movable between the recesses along at least a portion of the length of the leg joint; A plurality of toggle switches, wherein each of the toggle switches is connectable to one of the ratchet-type leg sleeves, and a portion of the toggle switch is detachably insertable into any of the recesses, wherein when the portion is inserted into any recess, it prevents the ratchet-type leg sleeve connected thereto from moving relative to the leg joint to which it is fitted. A base frame, connectable to the furniture body, includes two leg sleeve assemblies and a central sub-assembly. The two leg sleeve assemblies are rotatably connected to the central sub-assembly. Each leg sleeve assembly includes two outer leg sleeves, and each leg joint is insertable into one of the outer leg sleeves to a depth defined by the position of a ratchet-type leg sleeve on that leg joint. The base frame switches between a folded configuration and an unfolded configuration by rotating the leg sleeve assemblies relative to the central sub-assembly.

2. The foldable furniture component according to claim 1, characterized in that, Also includes: Two retaining clips are disposed on one of the two leg sleeve assemblies; and two knobs are respectively formed on the two ratchet-type leg sleeves, wherein when the base frame is in a folded configuration, each retaining clip is close to a corresponding knob, and the ratchet-type leg sleeve containing the knob is located on a leg joint inserted into the outer leg sleeve of the other leg sleeve assembly, and the retaining clips can engage with the knobs to secure the base frame in the folded configuration.

3. The foldable furniture component according to claim 2, characterized in that, Each of the knobs is formed on one side of the corresponding ratchet-type leg sleeve, which is opposite to the side connected to the toggle switch.

4. The foldable furniture component according to claim 1, characterized in that, When the leg joint is inserted into the outer leg sleeve and contacts the ground when the base frame is in the unfolded configuration, the length of each leg joint extending out of the outer leg sleeve and its angle of contact with the ground can be adjusted independently.

5. The foldable furniture component according to claim 1, characterized in that, Each of the leg joints includes a ball joint on which the foot joint is rotatably mounted.

6. The foldable furniture component according to claim 5, characterized in that, When the leg joint needs to contact the ground, each foot joint can rotate to the bottom of its ball joint; when the base frame is in a folded configuration, each foot joint can rotate to the side of its ball joint.

7. The foldable furniture component according to claim 1, characterized in that, It also includes one or more markers that can be inserted into one or more of the recesses, the recesses with the markers being used to indicate the target recess into which the toggle switch should be inserted.

8. The foldable furniture component according to claim 1, characterized in that, The leg sleeve assembly is rotatably connected to the central sub-assembly by inserting bolts into holes in each leg sleeve assembly, and also includes at least two spring steel plates that, when the leg sleeve assembly is connected to the central sub-assembly, contact one of the leg sleeve assemblies and the central sub-assembly, and the spring steel plates are used to keep the base frame in the deployed position.

9. The foldable furniture component according to claim 1, characterized in that, The leg joint is at least partially hollow and has multiple openings on the side opposite to the side with the recess.

10. The foldable furniture component according to claim 1, characterized in that, The main body of the furniture is a chair, and the main body of the furniture includes: Seats that can be connected to the base frame; A backrest frame, rotatably connected to the base frame; Backrest, provided on the backrest frame; and A cushion may be fixed to the backrest and the seat, wherein the furniture body may rotate between a folded configuration in which the backrest is substantially parallel to the seat and an unfolded configuration in which the backrest frame is substantially perpendicular to the seat.

11. The foldable furniture assembly according to claim 10, characterized in that, The seat is made of polyethylene and has multiple recesses on the side facing the base.

12. The foldable furniture component according to claim 10, characterized in that, Also includes: A retaining clip is provided on the side of the seat facing the central sub-assembly; as well as A rope, one end of which is fixed inside the backrest and the other end of which is close to the retaining clip when the furniture body is in a folded configuration, the rope being able to engage with the retaining clip to secure the furniture body in the folded configuration.

13. The foldable furniture component according to claim 10, characterized in that, The backrest comprises multiple interconnectable and separable layers.

14. The foldable furniture assembly according to claim 10, characterized in that, The cushion includes a backrest that can be fixed to the backrest and a seat cushion that can be fixed to the seat. The seat cushion includes a central seat cushion portion and two side wings located on both sides of the central seat cushion portion. The two side wings are respectively connected to the backrest by two support structures. Each support structure connects one side of the backrest and one side of a side wing. When the main body of the furniture is in an unfolded configuration, the two side wings are raised relative to the central seat cushion portion due to the tension applied by the support structures.

15. The foldable furniture component according to claim 1, characterized in that, The main body of the furniture is a sofa, and the main body of the furniture includes: Seats that can be connected to the base frame; A backrest frame, rotatably connected to the base frame; Backrest, provided on the backrest frame; and A cushion is fixed to the backrest frame and the seat, wherein the main body of the furniture is rotatable between a folded configuration in which the backrest is substantially parallel to the seat and an unfolded configuration in which the backrest frame is substantially perpendicular to the seat, wherein the backrest of the cushion is connected to the seat cushion portion via a support structure, and the structure of the seat cushion portion remains unchanged in both the folded and unfolded configurations.

16. The foldable furniture component according to claim 1, characterized in that, The main body of the furniture is a table, including a tabletop that can be connected to the base frame, and also includes: Two connectors, each disposed between the two outer leg sleeves of a leg sleeve assembly; and Two locking levers, each connected to one of the connectors, wherein the locking levers prevent the base frame from entering a folding configuration in a locked state and allow the base frame to enter a folding configuration in an unlocked state.

17. The foldable furniture component according to claim 16, characterized in that, The central sub-component also includes: Two connecting rods, each of the leg sleeve assemblies is connected to one of the connecting rods, and each of the connecting rods is provided with two table wing connecting extensions; A desktop center support rod is connected to two of the connecting rods, and the locking rod is connected to the desktop center support rod; Two table wing support sub-assemblies are rotatably connected to the table wing connection extension; The main body of the furniture also includes table wings, each table wing being connected to a table wing support sub-assembly, wherein the main body of the furniture can switch between an unfolded configuration in which the table wings and the tabletop are on the same plane and a folded configuration in which the table wings are folded and attached to the tabletop and are on different planes.

18. The foldable furniture assembly according to claim 17, characterized in that, Also includes: Four table wing locks; Each of the table wing support subassemblies also includes two table wing lock slots, which, when inserted into the table wing lock slots, prevent the main body of the furniture from changing from a folded configuration to an unfolded configuration.

19. The foldable furniture assembly according to claim 18, characterized in that, Each of the table wing locks is elongated and made of plastic.

20. The foldable furniture assembly according to claim 16, characterized in that, The desktop is made of polyethylene and has multiple recesses on the side facing the central sub-assembly.

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