QUICK ASSEMBLY CHAIR

Abstract

QUICK-ASSEMBLY CHAIR The invention relates to a quick-assembly chair, comprising a seat frame assembly (1), a backrest frame assembly (2), a first armrest assembly (3), and a second armrest assembly (6), the seat frame assembly (1) being connected to the backrest frame assembly (2), the backrest frame assembly (2) being rotatable relative to the seat frame assembly (1), and the backrest frame assembly (2) comprising a first limiting part; the first armrest assembly (3) is located on a first side of the seat frame assembly (1) and the backrest frame assembly (2); the second armrest assembly (6) is located on a second side of the seat frame assembly (1) and the backrest frame assembly (2); the first armrest assembly (3) comprises a second limiting part for connecting with the first limiting part. Figure to be published with the abstract: Figure 1

Description

Title of the invention: QUICK-ASSEMBLY CHAIR technical field

[0001] The present invention relates to the technical field of chairs, in particular a quick-assembly chair. CONTEXT

[0002] Chair assembly technology is relatively mature, especially in the modern industrial production environment. Many chair manufacturers have adopted advanced production lines and automated equipment to ensure the accuracy and efficiency of chair assembly. These technologies not only increase production speed but also reduce the risk of human error, thereby improving the overall quality of the chair.

[0003] Due to developments in logistics and changes in lifestyles, chairs are no longer sold to consumers fully assembled, but rather as multiple components for self-assembly. Therefore, the ease of assembly of a chair is a very important aspect.

[0004] Many chairs adopt a modular structure, making the assembly process easier and more efficient. Modular assembly allows manufacturers to break down the chair into several independent parts, which can be easily delivered and assembled.

[0005] However, current methods for the rapid assembly of chairs mainly involve the localized use of snap-fit ​​mechanisms combined with hand-tightened screws. These methods still have drawbacks such as tedious assembly, a large number of hand-tightened screws, a poor user experience, and insufficient structural strength.

[0006] The above disclosure is intended to help understand the inventive concept and technical solution of the present invention, and it does not necessarily belong to the prior art of this application. In the absence of clear evidence that the above content has been disclosed as of the filing date of this application, the above disclosure should not be used to assess the novelty and inventiveness of this application. SUMMARY

[0007] Therefore, the present invention provides a quick-assembly chair which, through structural optimization, significantly reduces the number of parts to be manually fixed by the user, improves the user's experience and assembly efficiency, and also improves the structural strength of the chair.

[0008] The present invention provides a quick-assembly chair, comprising a seat frame assembly, a back frame assembly, a first armrest assembly and a second armrest assembly, the seat frame assembly being connected to the back frame assembly;

[0009] the backrest frame assembly is rotatable relative to the seat frame assembly, and the backrest frame assembly includes a first limiting part;

[0010] the first armrest assembly is located on a first side of the seat frame assembly and the backrest frame assembly;

[0011] the second armrest assembly is located on a second side of the seat frame assembly and the backrest frame assembly; and

[0012] The first armrest assembly includes a second limiting part, the second limiting part is used to connect with the first limiting part in order to keep the backrest frame assembly stationary relative to the first armrest assembly.

[0013] Optionally, the backrest frame assembly also includes a third limiting part, and the second armrest assembly includes a fourth limiting part; the fourth limiting part is used to connect with the third limiting part in order to keep the backrest frame assembly stationary relative to the second armrest assembly.

[0014] Optionally, the first limiting part is a limiting projection or a concave limiting structure.

[0015] Optionally, the first armrest assembly has a first connection point; the first armrest assembly is configured to be connected with the seat frame assembly and the backrest frame assembly at the first connection point by a first movable component;

[0016] The second armrest assembly has a second connection point; the second armrest assembly is configured to be connected with the seat frame assembly and the backrest frame assembly at the second connection point by a second movable component.

[0017] Optionally, the quick-assembly chair also includes:

[0018] a rear seat support rod, the rear seat support rod being removably installed at a connection point between the seat frame assembly and the backrest frame assembly.

[0019]

[0018] Optionally, the quick-assembly chair further includes:

[0020] a front seat support rod, the front seat support rod being rotatably fixed to the seat frame assembly.

[0021]

[0019] Optionally, the front seat support rod further includes a first column fixing loop and a second column fixing loop fixed; the first column fixing loop is used to connect the first armrest assembly and allow the first armrest assembly to rotate relative to the first column fixing loop; the second column fixing loop is used to connect the second armrest assembly and allow the second armrest assembly to rotate relative to the second column fixing loop.

[0022]

[0020] Optionally, the connection point of the front seat support rod and of the seat frame assembly, the first column fixing loop and the first connection point form a triangle.

[0023]

[0021] Optionally, the first armrest assembly further includes a plurality of support tabs under seat; the first armrest assembly is configured to be fixed to the seat frame assembly so that the support tabs under seat engage with the seat frame assembly.

[0024]

[0022] Optionally, the number of support tabs under the seat is not less than two; the first armrest assembly is configured to be attached to the seat frame assembly so that one or more of the under-seat support tabs are in contact with both surfaces of the seat frame assembly. Optionally, the second limiting part has a plurality of positioning holes for positioning the backrest frame assembly, so that the backrest frame assembly can be tilted into several distinct positions.

[0025]

[0023] Compared to the prior art, the present invention has the beneficial effects following:

[0026]

[0024] The quick-assembly chair provided by the present invention connects The seat frame and backrest frame assemblies rotate, allowing users to avoid assembling them separately. Instead, users only need to assemble the first armrest assembly and the second armrest assembly, significantly reducing the number of parts the user must assemble and improving assembly efficiency.

[0027]

[0025] The present invention adopts an integrated structure for the entire frame of seat and backrest frame assembly, without nets or other fixing parts, significantly reduces the connection range of moving components, and greatly increases the overall structural strength of the chair. BRIEF DESCRIPTION OF THE FIGURES

[0028]

[0026] In order to explain more clearly the embodiments of the present For inventions or technical solutions in the prior art, the drawings to be used in the description of embodiments or prior art will be briefly presented below. Obviously, the drawings in the description The following are merely embodiments of the present invention. For persons competent in the field, other designs can also be obtained based on the drawings provided, without creative effort. Other features, objects, and advantages of the present invention will become more apparent upon reading the detailed description of the non-limiting embodiments made with reference to the following drawings:

[0029]

[0027] [Fig. 1] is a schematic diagram of the structure of an assembly chair rapid according to an embodiment of the present invention;

[0030]

[0028] [Fig.2] is a schematic diagram of a rotation trajectory of a armrest assembly first according to an embodiment of the present invention;

[0031]

[0029] [Fig.3] is a schematic diagram of a rotation trajectory of a second armrest assembly according to an embodiment of the present invention;

[0032]

[0030] [Fig.4] is a schematic diagram of a rotation trajectory of a armrest assembly and backrest frame assembly according to an embodiment of the present invention;

[0033]

[0031] [Fig.5] is a schematic diagram of a triangle according to a mode of realization of the present invention;

[0034]

[0032] [Fig.6] is a schematic diagram of another triangle according to a mode of realization of the present invention;

[0035]

[0033] [Fig.7] is a schematic diagram of the structure of a support tab under the seat according to an embodiment of the present invention;

[0036]

[0034] [Fig.8] is a schematic diagram showing an overall structure of a support tab under the seat and of a seat frame assembly in a disengaged state according to an embodiment of the present invention;

[0037]

[0035] [Fig.9] is a schematic structure diagram showing an engagement between a support tab under the seat and a seat frame assembly according to an embodiment of the present invention;

[0038]

[0036] [Fig. 10] is a schematic diagram showing an overall structure of a support tab under the seat and a seat frame assembly in an engaged state according to an embodiment of the present invention. DETAILED DESCRIPTION

[0039]

[0037] The present invention will be described in detail below in conjunction with Specific embodiments. The following embodiments will help those skilled in the field to better understand the present invention, but do not limit the present invention in any way. It should be noted that for those skilled in the field, several modifications and improvements can be made without departing from the scope of the present invention.

[0040]

[0038] The terms "first", "second", "third", "fourth", etc. (where applicable) In the description of the present invention, terms are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used may be interchangeable where appropriate, so that the embodiments of the invention described herein, for example, may be implemented in an order other than that illustrated or described herein. Furthermore, the terms "include" and "have," and their variations, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus comprising a series of steps or units is not necessarily limited to those clearly enumerated steps or units but may include other steps or units not clearly enumerated or inherent in such processes, methods, products, or apparatus.

[0041]

[0039] Embodiments of the present invention provide a chair to rapid assembly, aimed at solving problems existing in the prior art.

[0042]

[0040] In the description, when the first armrest assembly and the assembly The second armrest assembly is symmetrical; this description only covers the first armrest assembly. Based on the description of the first armrest assembly and its associated components, it will be easy for those skilled in the field to replicate the same arrangement in the second armrest assembly and its associated components, ensuring that the first and second armrest assemblies are symmetrical. Therefore, although the description primarily focuses on the first armrest assembly, the entire structure includes more than just the first armrest assembly. The second armrest assembly can be configured in the same way as the first armrest assembly and is also part of the structure.

[0043]

[0041] Below, specific embodiments will be used to provide A detailed explanation of the technical solution of the present invention and how the technical solution of the present invention addresses the technical problems mentioned above. The following specific embodiments may be combined with one another, and the same or similar concepts or processes may or may not be described in detail in certain embodiments. Below, the embodiments of the present invention will be described in conjunction with the accompanying drawings.

[0044]

[0042] As shown in [Fig. 1] and [Fig. 2], a quick-assembly chair provided by the present invention includes:

[0045]

[0043] A seat frame assembly 1.

[0046]

[0044] More specifically, the seat frame assembly 1 is the basic part of the This chair, designed to support the user's hips, is made of solid metal or reinforced plastic to ensure sufficient load-bearing capacity and durability. The seat frame assembly is designed to connect with the backrest frame assembly, the first armrest assembly, and the second armrest assembly to form a complete chair structure.

[0047]

[0045] A backrest frame assembly 2; the backrest frame assembly 2 is rotatable by relation to the seat frame assembly 1, and the file frame assembly 2 includes a first limitation part 14; the first limitation part 14 is a limitation projection or a concave limitation structure.

[0048]

[0046] The seat frame assembly 1 is connected to the backrest frame assembly 2, and The backrest frame assembly 2 is rotatable relative to the seat frame assembly 1.

[0049]

[0047] More specifically, the entire folder frame assembly 2 is used to support the the user's back. The backrest frame assembly is made of metal, plastic, or another lightweight but strong material. The backrest frame assembly 2 may vary in shape and size depending on the chair design, but generally includes one or more support rods and a back support panel or mesh material. The seat frame assembly 1 and the backrest frame assembly 2 in the present invention are integrated structures, and the seat frame assembly 1 and the backrest frame assembly 2 can be rotated relative to each other to change an angle between them. The angle between the two changes within a range of at least 0°–90°. When the angle between the two is 0°, the seat frame assembly 1 and the backrest frame assembly 2 are folded together, resulting in the smallest possible volume.When the angle between the two is 90°, the seat frame assembly 1 and the backrest frame assembly 2 can provide lumbar support for the user. The angle between the seat frame assembly 1 and the backrest frame assembly 2 can also be 100°, 110°, 120°, 130°, or any other value not listed. Skilled personnel may adjust the angle between the seat frame assembly 1 and the backrest frame assembly 2 according to design requirements.

[0050]

[0048] The first armrest assembly 3 is located on a first side of the assembly seat frame 1 and of the entire file frame 2.

[0051]

[0049] More specifically, the first armrest assembly 3 is located on the first The armrest assembly (armrest) is designed to provide additional support to the user. The armrest assembly (armrest) is typically designed to match the style and color of the seat frame assembly (armrest) and the back frame assembly (armrest).

[0052]

[0050] The second armrest assembly 6 is located on a second side of the assembly seat frame 1 and of the entire file frame 2.

[0053]

[0051] More specifically, the second armrest assembly 6 is similar to the assembly The first armrest (3) is located on the second side of the chair. It also provides additional support to the user and has a design and features that match the first armrest assembly.

[0054] The first armrest assembly 3 includes a second limiting part 16, the second limiting part 16 is used to connect with the first limiting part 14 in order to keep the backrest frame assembly 2 stationary relative to the first armrest assembly 3.

[0055]

[0053] More specifically, the first part of limitation 14 is used for Connect the first armrest assembly 3 and restrict the rotation or movement of the first armrest assembly 3. The second limiting part 16 cooperates with the first limiting part 14 to achieve a quick fixing of the relative position between the back frame assembly 2 and the first armrest assembly 3, making the operation faster, more convenient and simpler, thus improving the user-friendliness of the chair assembly process.

[0056]

[0054] In some embodiments, the entire folder frame 2 is in In addition to being provided with a third limiting part 15, the second armrest assembly 6 includes a fourth limiting part 17; the fourth limiting part 17 is used to connect with the third limiting part 15 in order to keep the backrest frame assembly stationary relative to the second armrest assembly 6. The third limiting part 15 is used to connect the second armrest assembly 6 and restrict the rotation or movement of the second armrest assembly 6. The third limiting part 15 allows for faster, more convenient and simpler assembly between the backrest frame assembly 2 and the second armrest assembly 6, thus improving the user-friendliness of the chair assembly process.

[0057]

[0055] In some embodiments, the first armrest assembly 3 has a First connection point 4; the first armrest assembly 3 is configured to be connected to the seat frame assembly 1 and the backrest frame assembly 2 at the first connection point 4 by a first moving component 5. The first armrest assembly 3 has a first connection point 4, which is a key point for connecting to the seat frame assembly 1 and the backrest frame assembly 2. Thanks to the first moving component 5, the first armrest assembly 3 can be securely attached to the chair. The first connection point 4 is a point where the first armrest assembly 3 connects to the seat frame assembly 1 and the backrest frame assembly 2. The first connection point 4 is generally designed to accommodate the first moving component 5 to ensure that the first armrest assembly 3 can be securely attached to the chair. The first connection point 4 can be a hole, slot, or other connecting structure to match the first moving component 5. The first moving component 5 can be a bolt, pin, clip, or other type of connection, which can securely connect the first armrest assembly 3 to the seat frame assembly 1 and the backrest frame assembly 2.

[0058]

[0056] The second armrest assembly 6 has a second connection point 7; The second armrest assembly 6 is configured to connect to the seat frame assembly 1 and the backrest frame assembly 2 at the second connection point 7 via a second movable component 8. The second armrest assembly has a second connection point for connecting to the seat frame assembly and the backrest frame assembly. The second armrest assembly 6 and the first armrest assembly 3 are located on the left and right sides of the seat frame assembly 1 and the backrest frame assembly 2, respectively, to keep the seat frame assembly 1 and the backrest frame assembly 2 stationary from different directions and to accommodate the user. Consequently, the second connection point 7 and the first connection point 4 are also arranged on opposite sides of the seat frame assembly 1 and the backrest frame assembly 2.The second moving component 8 has the same structure as the first moving component 5, and the two are respectively arranged on the left and right sides of the seat frame assembly 1 and the backrest frame assembly 2.

[0059]

[0057] In some embodiments, the first moving component 5 is connected to the first armrest assembly 3 and has a certain degree of freedom. When the first moving component 5 is connected to the seat frame assembly 1 and the backrest frame assembly 2 at the first connection point 4, the first armrest assembly 3 can be fixed to the seat frame assembly 1 and the backrest frame assembly 2 by a simple action such as pressure, and the efficiency of the assembly is greatly improved.

[0060] In some embodiments, as shown in [Fig.1], the quick-assembly chair further includes a rear seat support bar 9.

[0061] A rear seat support rod 9 is removably installed at the connection between the seat frame assembly 1 and the backrest frame assembly 2.

[0062] More specifically, the rear seat support bar 9 is used to reinforce the seat frame assembly 1 and the backrest frame assembly 2. The backrest support rod 9 has connection ports at both ends, with one end connected to the first moving component 5 and the other end connected to the second moving component 8. The rear seat support rod 9 allows the seat frame assembly 1, the backrest frame assembly 2, and the armrest assembly to be connected. The first 3 and the second 6 armrest assembly are connected into a whole, greatly improving the overall strength of the chair.

[0063] In some embodiments, as shown in [Fig.1], the quick-assembly chair further includes a front seat support bar 10.

[0064]

[0064] The front seat support rod 10 is rotatably fixed on seat frame assembly 1.

[0065] More specifically, the angle between the front support bar 10 and the seat frame assembly 1 can be 0°, 100°, 110°, 120°, or any other obtuse angle. When the angle between the front support bar 10 and the seat frame assembly 1 is 0°, the chair's volume is minimal and it is convenient to transport. When the angle between the support bar 10 and the seat frame assembly 1 is at least an obtuse angle, the position of the support bar 10 relative to the seat frame assembly 1 can be fixed, allowing it to withstand greater forces and have greater stability.

[0066] In some embodiments, the front support rod 10 further comprises a first column fixing loop 11 and a second column fixing loop 12; the first fixing loop 11 is used to connect the first armrest assembly 3 and allow the first armrest assembly 3 to rotate relative to the first fixing loop 11; the second fixing loop 12 is used to connect the second armrest assembly 6 and allow the second armrest assembly 6 to rotate relative to the second fixing loop 12. The circle in [Fig. 2] shows a schematic rotation path of the first armrest assembly 3. The circle in [Fig. 3] shows a schematic rotation path of the second armrest assembly 6.As an example, the first armrest assembly 3 and the second armrest assembly 6 are each allowed to rotate relative to their corresponding mounting loops, making chair assembly more convenient. Figure 4 is a diagram of the rotation paths of the first armrest assembly 3 and the backrest frame assembly 2. In Figure 4, the largest circle represents the rotation path of the first armrest assembly 3, and the smallest circle represents the rotation path of the backrest frame assembly 2. As can be seen in Figure 4, there is an overlap in the rotation ranges of the first armrest assembly 3 and the backrest frame assembly 2, meaning that the first armrest assembly 3 and the backrest frame assembly 2 can engage and be secured at their intersection.This allows the relative position of the first armrest assembly 3 and the backrest frame assembly 2 to be fixed, as well as their fixed position relative to the seat frame assembly 1, thus achieving rapid assembly.

[0067] In certain embodiments, the connection point between the front support rod 10 and the seat frame assembly 1, the first fastening loop 11, and the first connection point 4 together define a triangle. Figures 5 and 6 show two different structures for the triangular area surrounded by the front support rod 10, the seat frame assembly 1 and the first armrest assembly 3. [Fig.5] and [Fig.6] show that a shape of the front support rod 10 can be a straight line or a non-straight line.

[0068] In some embodiments, the first armrest assembly 3 further includes a plurality of under-seat support tabs 13; the first armrest assembly 3 is configured to be fixed to the seat frame assembly 1 so that the under-seat support tabs 13 engage with the seat frame assembly 1. The under-seat support tabs 13 make the assembly of the first armrest assembly 3 and the seat frame assembly 1 firmer, thus improving the durability of the chair and preventing problems such as deformation that can occur in the process of long-term use of the seat frame assembly 1.

[0069] In some embodiments, the number of support tabs under the seat 13 is not less than two, and the first armrest assembly 3 is configured to be fixed to the seat frame assembly 1 such that one or more of the support tabs under the seat 13 are in contact with both surfaces of the seat frame assembly 1. As shown in [Fig. 7], at least one of the support tabs under the seat 13 comes into contact with two surfaces of the seat frame assembly 1 when the first armrest assembly 3 is fixed to the seat frame assembly 1. This not only improves the support of the seat frame assembly 1 but also limits the lateral displacement of the seat frame assembly 1 relative to the first armrest assembly 3, thus making the overall structure of the chair more stable. [Fig.Figure 8 is a diagram showing the support tab under the seat 13 and the seat frame assembly 1 in an unengaged state, and a circular portion in [Fig. 8] is the portion shown in [Fig. 7]. It can be seen in [Fig. 8] that the support tab under the seat 13 also serves to limit the rotation angle of the first armrest assembly 3 and the seat frame assembly 1. [Fig. 9] is a diagram showing the support tab under the seat 13 engaged with the seat frame assembly 1, and it can be seen that the connection is more secure when both are engaged. [Fig. 10] is a diagram showing the overall structure when the support tab under the seat 13 is engaged with the seat frame assembly 1, and a circular portion in [Fig. 10] is the portion shown in [Fig. 9]. As can be seen in [Fig. 10], the first armrest assembly 3 and the seat frame assembly 1 are both more securely fixed.The second part of the limitation 16 has a plurality of positioning holes for positioning the backrest frame assembly 2, so that the backrest frame assembly 2 can be tilted into several distinct positions.

[0070] The different embodiments in this description are described progressively, each embodiment emphasizing the differences by with respect to other embodiments, and identical or similar parts between the different embodiments may be referred to one another. The above description of the disclosed embodiments enables persons competent in the field to implement or use the present invention. Various modifications to these embodiments will be apparent to persons competent in the field, and the general principles defined herein can be implemented in other embodiments without departing from the scope of the present invention. Accordingly, the present invention will not be limited to the embodiments shown herein.

[0071] Specific embodiments of the present invention are described above. It is understood that the present invention is not limited to the specific embodiments above, and that persons competent in the field may make various modifications or improvements, without departing from the scope of the present invention.

Claims

Demands

1. A quick-assembly chair, characterized in that it comprises a seat frame assembly (1), a back frame assembly (2), a first armrest assembly (3) and a second armrest assembly (6), the seat frame assembly (1) being connected to the back frame assembly (2), wherein the back frame assembly (2) is rotatable relative to the seat frame assembly (1), and the back frame assembly (2) includes a first limiting part (14); wherein the first armrest assembly (3) is located on a first side of the seat frame assembly (1) and the back frame assembly (2); wherein the second armrest assembly (6) is located on a second side of the seat frame assembly (1) and the back frame assembly (2);and wherein the first armrest assembly (3) comprises a second limiting part (16), the second limiting part (16) being used to connect with the first limiting part (14) in order to keep the backrest frame assembly (2) stationary relative to the first armrest assembly (3).

2. Quick assembly chair according to claim 1, characterized in that the back frame assembly (2) further comprises a third limiting part (15), and the second armrest assembly (6) comprises a fourth limiting part (17); wherein the fourth limiting part (17) is used to connect with the third limiting part (15) in order to keep the back frame assembly (2) stationary relative to the second armrest assembly (6).

3. Quick assembly chair according to claim 1, characterized in that the first limiting part (14) is a limiting projection or a concave limiting structure.

4. A quick-assembly chair according to claim 1, characterized in that the first armrest assembly (3) has a first connection point (4); wherein the first armrest assembly (3) is configured to be connected with the seat frame assembly (1) and the backrest frame assembly (2) at the first connection point (4) by a first movable component (5); and wherein the second armrest assembly (6) has a second connection point (7); wherein the second armrest assembly (6) is configured to be connected with the seat frame assembly (1) and the backrest frame assembly (2) at the second connection point (7) by a second movable component (8).

5. Quick assembly chair according to claim 1, characterized in that it further comprises: a rear seat support rod (9), in which the rear seat support rod (9) is removably installed at a connection point between the seat frame assembly (1) and the backrest frame assembly (2).

6. Quick assembly chair according to claim 1, characterized in that it further comprises: a front seat support rod (10), in which the front seat support rod (10) is rotatably fixed to the seat frame assembly (1).

7. Quick assembly chair according to claim 6, characterized in that the front support rod (10) further comprises a first column fixing loop (11) and a second column fixing loop (12); in which the first fixing loop (11) is used to connect the first armrest assembly (3) and allow the first armrest assembly (3) to be rotatable relative to the first fixing loop (11); in which the second fixing loop (12) is used to connect the second armrest assembly (6) and allow the second armrest assembly (6) to be rotatable relative to the second fixing loop (12).

8. Quick assembly chair according to claim 7, characterized in that the connection point of the front support rod (10) and the seat frame assembly (1), the first fixing loop (11) and the first connection point (4) form a triangle.

9. A quick-assembly chair according to any one of claims 1 to 8, characterized in that the first armrest assembly (3) further comprises a plurality of under-seat support tabs (13); wherein the first armrest assembly (3) is configured to be fixed to the seat frame assembly (1) such that the support tabs under seat (13) engage with the seat frame assembly (1).

10. Quick assembly chair according to claim 9, characterized in that the number of support tabs under seat (13) is not less than two; in which the first armrest assembly (3) is configured to be fixed to the seat frame assembly (1) so that one or more of the support tabs under seat (13) are in contact with both surfaces of the seat frame assembly (1).

11. Quick assembly chair according to claim 1, characterized in that the second limiting part (16) has a plurality of positioning holes for positioning the backrest frame assembly (2), so that the backrest frame assembly (2) can be tilted into several distinct positions.

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