Assembly mechanism for modular sofas

Description

1 / 15 ASSEMBLY MECHANISM FOR MODULAR SOFAS Utility model field

[0001] The present utility model relates to the technical field of residential furniture, with special emphasis on furniture assembly mechanisms, and more specifically, to an assembly mechanism for modular armchairs that allows the assembly, reconfiguration and stability of the modular armchair in a simple and efficient manner. Background of the utility model

[0002] The home furniture industry has undergone significant evolution, driven by increasing consumer demand for functional, versatile solutions adaptable to different environments and lifestyles. In this context, modular armchairs have become a popular option due to their ability to adjust to spaces with different dimensions and configurations. However, despite advancements, assembly mechanisms have technical and practical limitations that restrict their functionality, efficiency, and market acceptance.

[0003] In conventional armchairs, components such as backrests, armrests, and bases are usually permanently fixed, which makes them difficult to transport, especially in locations with limited access, such as narrow staircases or small elevators. Although there are options that allow for some degree of disassembly, these generally require specific tools and considerable time, since current assembly mechanisms—such as screws, nuts, or basic connectors—are not designed to facilitate quick and simple processes. This approach complicates both assembly and disassembly, making it a difficult task for the end user.

[0004] On the other hand, modular armchairs, designed to offer flexibility and customization, also face challenges, mainly related to stability and Petition 870250076616, dated 08 / 28 / 2025, page 46 / 75 2 / 15 Durability of the connection mechanisms between its modules or sections. The assembly methods used are often rudimentary or insufficient to withstand the forces and movements generated during everyday use. This can cause misalignment, instability, or even structural damage over time, compromising the user experience and the durability of the furniture. Furthermore, these assembly mechanisms are generally neither intuitive nor practical, as they require additional tools and complex processes, increasing the chance of errors and hindering use in different configurations.

[0005] From an industrial point of view, the production of modular furniture also faces difficulties. The need to offer a wide variety of combinations and configurations increases production, storage and transport costs. Furthermore, inefficient assembly mechanisms can increase manufacturing time and reduce the scalability of production.

[0006] Given this scenario, the need arises to develop innovative connectors for armchairs that allow for quick, intuitive assembly and disassembly, preferably without the use of additional tools, while ensuring a stable and durable connection. These connectors must be adaptable and able to withstand the forces applied during daily use, without compromising the aesthetics or functionality of the furniture. Furthermore, they must facilitate the customization and reconfiguration of modular armchairs, meeting the varying needs of users and optimizing industrial manufacturing, storage, and distribution processes.

[0007] Among the prior art documents dealing with solutions for providing connectors for modular armchairs, US patent document 2024 / 0023715 A1 discloses an armchair connector that provides quick and easy assembly and disassembly of a backrest with the armchair base, in which the connector is fixed to the backrest by means of screws and fits into the base. Petition 870250076616, dated 08 / 28 / 2025, page 47 / 75 3 / 15 of the sofa is joined by a tubular section or pin.

[0008] US Patent 11,889,924 B2 discloses a modular armchair that can reduce its size and weight to facilitate handling and transport, as well as allowing for various combinations. Additionally, a hook-shaped connector is presented, which serves to join the backrest to the base of the armchair, as well as a U-shaped connecting element, illustrated as a plate with a pin at each end, which fits into holes located in the base of the seats to complete the coupling.

[0009] Utility model CN ​​221469477 U discloses a modular armchair that is easy to assemble and disassemble. The armchair modules are joined by means of interlocking parts, consisting of pin-type devices that are inserted into holes located on the underside of the armchair modules, which are connected by a U-shaped rod.

[0010] Utility model CN ​​201687819 U discloses a type of simple, effective armchair connector for connection and fastening, whose installation and removal are practical. The connector comprises a pair of L-shaped rods with one end threaded. In addition, the connector has hollow housings, pre-installed in the sofa, to receive the non-threaded end of the L-shaped rod. This connector allows the coupling of adjacent perpendicular sections of a sofa by inserting the threaded part of the rod into the backrest or armrest, while the other end fits into the seat, where the housing was previously installed.

[0011] As can be seen, there are solutions that have partially improved the assembly mechanisms in modular armchairs, but significant limitations in terms of adaptability still persist — especially in the case of adjacent perpendicular joints, where state-of-the-art assembly mechanisms only allow joints with a 90° angle. By Petition 870250076616, dated 08 / 28 / 2025, page 48 / 75 4 / 15 Therefore, it is essential to continue developing innovative connectors that enable simple assembly and disassembly, while ensuring high adaptability to different configurations and user needs. These advances will benefit not only end consumers, by offering more practical and functional furniture, but also manufacturers, by optimizing production and distribution processes in the furniture industry. Utility model objectives

[0012] In view of the developments in the state of the art, the objective of the present utility model is to provide an assembly mechanism that allows the assembly, reconfiguration and stability of modular armchairs in a simple and efficient manner.

[0013] An additional objective is to offer a mounting mechanism that allows for an articulated connection between the base of the modular armchairs and their respective armrests and / or backrests.

[0014] These and other objectives are achieved by means of an assembly mechanism for modular armchairs, as per the present utility model. Brief description of the utility model

[0015] For this purpose, a mounting mechanism for modular armchairs was developed comprising at least one first connector configured to join the base of a modular armchair with a backrest or, at least, with an armrest, in which the at least first connector comprises: • a mounting plate configured to be attached to the backrest and / or armrest of the modular chair, which has at least one mounting hole; • an insertion shaft configured to be inserted into the base of the modular chair; • a flat extension configured as an anchor point Petition 870250076616, dated 08 / 28 / 2025, page 49 / 75 5 / 15 intermediate between the fixing plate and the insertion shaft; and • a tubular element configured to connect, in an articulated manner, the fixing plate with the flat extension.

[0016] Another aspect of the present utility model relates to a mounting mechanism for modular armchairs comprising at least one first connector configured to join the base of a modular armchair with a backrest or, at least, with an armrest, and at least one second connector configured to join contiguous bases of a modular armchair to each other, wherein the at least one first connector comprises: • a mounting plate configured to be attached to the backrest and / or armrest of the modular chair, which has at least one mounting hole; • an insertion shaft configured to be inserted into the base of the modular chair; • a flat extension configured as an intermediate anchor point between the fixing plate and the insertion shaft; and • a tubular element configured to connect, in an articulated manner, the fixing plate with the flat extension; and • in which at least one second connector comprises: • at least two insertion shafts configured to be inserted, each, into a different base of a modular chair; and • a flat extension configured as an intermediate anchor point between the at least two insertion shafts. Brief description of the figures

[0017] The innovative aspects considered characteristic of the present utility model will be defined in detail in the appended claims. However, some embodiments, characteristics and objectives of the utility model will be better understood in the detailed description, when read in conjunction with the appended drawings, in which: Figure 1 illustrates a top front isometric view. Petition 870250076616, dated 08 / 28 / 2025, pp. 50 / 75 6 / 15 right side of a first connector of a mounting mechanism for modular armchairs, according to an embodiment of the present utility model; Figure 2 illustrates an upper left front isometric view of a first connector of a mounting mechanism for modular armchairs, according to an embodiment of the present utility model; Figure 3 illustrates an upper right rear isometric view of a first connector of a mounting mechanism for modular armchairs, according to an embodiment of the present utility model; Figure 4 illustrates a right side view of a first connector of a mounting mechanism for modular armchairs, according to an embodiment of the present utility model; Figure 5 illustrates a left side view of a first connector of a mounting mechanism for modular armchairs, according to an embodiment of the present utility model; Figure 6 illustrates a front view of a first connector of a mounting mechanism for modular armchairs, according to an embodiment of the present utility model; Figure 7 illustrates a rear view of a first connector of a mounting mechanism for modular armchairs, according to an embodiment of the present utility model; Figure 8 illustrates a top view of a first connector of a mounting mechanism for modular armchairs, according to an embodiment of the present utility model; Figure 9 illustrates a bottom view of a first connector of a mounting mechanism for modular armchairs, according to an embodiment of the present utility model; Figure 10 illustrates an upper right isometric view of a first connector of a mounting mechanism for modular armchairs, according to an embodiment of the present utility model; Petition 870250076616, dated 08 / 28 / 2025, page 51 / 75 7 / 15 Figure 11 illustrates an exploded lower right isometric view of a modular armchair comprising the first connectors of an assembly mechanism, according to an embodiment of the present utility model; Figure 12 illustrates an exploded upper right front isometric view of a modular armchair comprising the first connectors of an assembly mechanism, according to an embodiment of the present utility model; Figure 13 illustrates an exploded upper right front isometric view of a modular armchair comprising the first connectors of an assembly mechanism, according to an embodiment of the present utility model; Figure 14 illustrates an upper right front isometric view of a modular armchair comprising the first connectors of an assembly mechanism, according to an embodiment of the present utility model; Figure 15 illustrates an upper right front isometric view of a second connector of a mounting mechanism for modular armchairs, according to an embodiment of the present utility model; Figure 16 illustrates a lower left front isometric view of a second connector of a mounting mechanism for modular armchairs, according to an embodiment of the present utility model; Figure 17 illustrates a side view of a second connector of a mounting mechanism for modular armchairs, according to an embodiment of the present utility model; Figure 18 illustrates a top view of a second connector of a mounting mechanism for modular armchairs, according to an embodiment of the present utility model; Figure 19 illustrates an exploded upper right front isometric view of a modular armchair comprising first and second connectors of an assembly mechanism, of Petition 870250076616, dated 08 / 28 / 2025, page 52 / 75 8 / 15 in accordance with an embodiment of the present utility model; Figure 20 illustrates an upper right front isometric view of a modular armchair comprising first and second connectors of an assembly mechanism, according to an embodiment of the present utility model. Detailed description of the utility model

[0018] It should be understood that the present utility model is not limited to the methodologies, protocols, and elements presented in this detailed description, as these may vary. It is also important to understand that the terminology used in this document serves only to describe specific embodiments and is not intended to limit the scope of this disclosure, which will be restricted only by the appended claims. Unless otherwise defined, all technical terms used in this document have the same meaning usually understood by a person skilled in the art.

[0019] It has been found that it is possible to provide a mounting mechanism for modular armchairs comprising at least one first connector configured to join the base of a modular armchair with a backrest or, at least, with an armrest, wherein said first connector comprises: • a mounting plate configured to be attached to the backrest and / or armrest of the modular chair, containing at least one mounting hole; • an insertion shaft configured to be inserted into the base of the modular chair; • a flat extension, configured as an intermediate anchor point between the fixing plate and the insertion shaft; and • a tubular element configured to connect, in an articulated manner, the fixing plate with the flat extension.

[0020] In addition to the previous paragraph, the aforementioned first connector of the present utility model is Petition 870250076616, dated 08 / 28 / 2025, page 53 / 75 9 / 15 configured to join parts of a modular armchair that can be sectioned into at least one base, one backrest and one armrest, in such a way as to allow adjacent perpendicular joining between these sections or modules of the modular armchair.

[0021] The geometry of the first connector is not particularly limited, as long as it can be used to couple the base of a modular armchair to its respective backrest and / or armrest, this coupling being carried out in an articulated manner, allowing configurations in which the backrest or armrest has an inclination in relation to the base of the armchair.

[0022] In this sense, the first connector has two main parts: The first one can be attached to the walls of the backrest or armrests of the modular armchair; The second one is capable of connecting to the corresponding base.

[0023] The mounting plate consists of the part of the first connector that will be positioned on the wall of the backrest or armrests. This plate contains at least one mounting hole, through which a screw or pin will be inserted, allowing for a stable and secure attachment.

[0024] According to a non-limiting embodiment of the present utility model, the fixing plate has an essentially flat rectangular geometry, that is, a flat geometry with at least four straight sides and perpendicular vertices, preferably containing two fixing perforations.

[0025] On the other hand, the insertion shaft is the part of the connector that will be inserted into the base of the modular armchair. This part consists of an elongated section that projects perpendicularly from the flat extension and fits into a corresponding hole in the base of the modular armchair.

[0026] According to a preferred and non-limiting embodiment of the present utility model, the insertion shaft Petition 870250076616, dated 08 / 28 / 2025, pp. 54 / 75 10 / 15 has a cylindrical geometry, and it is even more preferable if it has one end in the shape of a truncated cone.

[0027] The fixing plate and the insertion shaft of the first connector are connected by means of the flat extension, which, according to a non-limiting embodiment, consists of a rectangular section that extends perpendicularly from the bottom of the fixing plate, being supported on the surface of the chair base. At its opposite end is the insertion shaft, which projects vertically downwards, so as to be inserted into the corresponding hole in the base of the modular chair.

[0028] The assembly mechanisms and / or connectors for modular armchairs described in the prior art allow the joining of adjacent perpendicular sections. However, these mechanisms are generally constructed in a continuous and rigid manner, being specifically designed for the furniture for which they are intended. Thus, they achieve a rigid connection between the sections, but limit the adaptability to different configurations or shapes of the armchair modules.

[0029] Thus, the present utility model incorporates an articulated joint between the fixing plate and the flat extension, allowing the connection between the base of the chair and the backrest and / or armrest at different angles of inclination.

[0030] According to a preferred embodiment of the utility model, this union is achieved by means of the tubular element, which functions as a hinge, allowing the connection between the fixing plate and the flat extension to rotate in a range between 0° and 180°.

[0031] With reference to Figures 1 to 10, these illustrate a first connector (10) of a mounting mechanism for modular armchairs, comprising: • a fixing plate (11) with flat geometry Petition 870250076616, dated 08 / 28 / 2025, pages 55 / 75 11 / 15 essentially rectangular, that is, with four straight sides and perpendicular vertices, containing — according to a non-limiting embodiment — a small groove in the upper central part to provide greater support and reduce the use of material in manufacturing, in addition to rounded edges and two circular fixing perforations (12); • an insertion shaft (13) in the form of a cylindrical pin, which projects perpendicularly from the flat extension (14), with its lower end in the form of a truncated cone; • the flat extension (14), with rectangular geometry, connected to the fixing plate (11) by means of a tubular element (15) that functions as a hinge, allowing rotation between these two components.

[0032] In this context: Figures 1 to 9 illustrate the first connector (10) in a position where the fixing plate (11) and the flat extension (14) form a 90° angle; Figure 10 shows the same connector with the fixing plate (11) and the flat extension (14) forming an angle of 180°.

[0033] Figures 11 and 12 illustrate a modular armchair (100) with two sections: a base (110) and a backrest (120), in which two first connectors (10) are installed. In this sense, the first connectors (10) are fixed to a wall of the backrest by means of screws or pins that pass through the fixing holes (12) of the mounting plate (11), and their insertion shafts (13) are introduced into corresponding holes (111) located in the base (110) of the modular armchair (100).

[0034] In turn, Figures 13 and 14 illustrate a modular armchair (100) composed of four sections: a base (110), a backrest (120) and two armrests (130). Both the backrest (120) and both armrests (130) have two first connectors (10) installed each, to join to the base (110). Petition 870250076616, dated 08 / 28 / 2025, pp. 56 / 75 12 / 15 Figure 13 shows an exploded view, allowing each section of the modular armchair (100) to be visualized, while Figure 14 shows the assembled armchair, in which, as can be seen in Figure 13, the modular armchair (100) can include a seat (140) to provide comfort to the user while concealing the assembly mechanism.

[0035] As described above, the assembly mechanism with the first connector is configured to assemble sections of a modular armchair that has only one base. Therefore, according to a preferred embodiment of the present utility model, the assembly mechanism also comprises at least one second connector, configured to join contiguous bases of a modular armchair together.

[0036] In this sense, the second connector offers configuration freedom for the modular armchair according to the user's needs, allowing the armchair to be configured with one or more bases, that is, whether it is an armchair for one person or for two or more people. Therefore, at least one second connector is required for each additional base of the modular armchair.

[0037] The geometry of the second connector is not particularly limited, as long as it can be used to connect adjacent bases together. It has two main parts: The first is capable of joining to the bases of the modular chair, and the second acts as an anchoring point between these parts.

[0038] Thus, according to a preferred embodiment, the second connector comprises at least two insertion shafts, configured to each insert into a different base of the modular chair. These shafts are elongated sections that project perpendicularly from the flat extension and fit into corresponding perforations in the bases of the modular chair.

[0039] According to a preferred and non- Petition 870250076616, dated 08 / 28 / 2025, page 57 / 75 13 / 15 limiting the utility model, the insertion shafts have a cylindrical geometry, and it is even more preferable that they have one end in the shape of a truncated cone.

[0040] The flat extension of the second connector is the part that holds the insertion shafts together — and, consequently, holds the bases of the modular chair together. According to a non-limiting embodiment, this extension has a rectangular geometry, resting on parts of the two bases to be joined. At its ends are located the corresponding insertion shafts.

[0041] Based on Figures 15 to 18, a second connector (20) of a mounting mechanism for modular armchairs is illustrated, comprising a flat extension (22) of rectangular geometry, which, according to a non-limiting embodiment, has a variation in width: the central part is wider, tapering at the ends, where the insertion axes (21) are located.

[0042] This second connector (20) comprises two insertion shafts (21) consisting of cylindrical pins, which project perpendicularly from the flat extension (22), with lower ends in the shape of a truncated cone.

[0043] Figures 19 and 20 illustrate a modular armchair (100) with six sections: two bases (110), two backrests (120) and two armrests (130). Both the backrests (120) and the armrests (130) have two initial connectors (10) installed to join to the bases (110).

[0044] In addition, to join the two bases (110) together, two second connectors (20) are used, whose insertion shafts (21) are inserted into the corresponding perforations (111) located on the base (110) of the modular chair (100).

[0045] To allow the introduction of insertion axes (13, 21) for both the first connectors (10) and the second connectors Petition 870250076616, dated 08 / 28 / 2025, pages 58 / 75 14 / 15 connectors (20) on the bases (110) of the modular chair (100), these include perforations (111) on each of their edges.

[0046] As illustrated in Figure 19, the sections of the modular armchair (100) have a square geometry, and the bases have two perforations (111) on each side of their perimeter.

[0047] Figure 19 presents an exploded view, allowing each section of the modular armchair (100) to be visualized, while Figure 20 shows the assembled view, in which, as observed in Figure 19, the modular armchair (100) can include a seat (140) for each base (110), providing comfort to the user and concealing the assembly mechanism.

[0048] In accordance with what has been described, the assembly mechanism for modular armchairs, according to the present utility model, not only allows different configurations of joining between the base and its respective backrest and armrest through the first connector, but also enables a wide variety of shapes and compositions of modular armchairs through the joining of bases using the second connector.

[0049] In this sense, it is possible to create armchairs for a single person or for several, and, in the case of three or more seats, to configure them in linear, L-shaped, U-shaped, square, and other formats.

[0050] Thus, it can be seen that the assembly mechanism for modular armchairs, according to the present utility model, was developed to provide a means of assembly that allows reconfiguration and stability of the armchairs in a simple and efficient manner, comprising an articulated joint between the base and the respective backrest and / or armrest.

[0051] It will be evident to any expert in the field that the embodiments described and illustrated are merely exemplary and not limiting of the present utility model, and numerous alterations to the details are possible without departing from its scope. Petition 870250076616, dated 08 / 28 / 2025, page 59 / 75 15 / 15

[0052] Therefore, this utility model should not be considered as restricted, except for the limits imposed by the prior art and the appended claims.

[0053] List of references First connector Mounting plate Mounting hole Insertion axis Flat extension Tubular element Second connector Insertion axis Flat extension 100 Modular Armchair 110 Modular armchair base 111 Hole for the base of the modular armchair 120 Backrest 130 Armrest 140 Seat New utility model feature

[0054] Having described the present utility model as set forth above, the following content is considered novel and is therefore claimed as proprietary: Petition 870250076616, dated 08 / 28 / 2025, pages 60 / 75

Claims

1 / 4 CLAIMS 1. Mounting mechanism for modular armchairs, characterized in that it comprises at least one first connector (10) configured to join a base (110) of a modular armchair (100) with a backrest (120) or with at least one armrest (130), wherein the at least one first connector (10) comprises: a mounting plate (11) configured to be fixed to the backrest (120) and / or to the armrest (130) of the modular armchair (100), which comprises at least one fixing hole (12); an insertion shaft (13) configured to be inserted into the base (110) of the modular armchair (100); a flat extension (14) configured as an intermediate anchoring point between the mounting plate (11) and the insertion shaft (13); and a tubular element (15) configured to articulately connect the mounting plate (11) with the flat extension (14).

2. Mounting mechanism according to claim 1, characterized in that the mounting plate (11) has a planar geometry with at least four straight sides and perpendicular vertices.

3. Mounting mechanism according to claim 1 or 2, characterized in that the mounting plate (11) comprises two fixing holes (12).

4. Mounting mechanism according to any one of claims 1 to 3, characterized in that the insertion shaft (13) has an elongated cylindrical geometry that extends perpendicularly from the flat extension (14) and is configured to be inserted into a hole (111) of the base (110) of a modular chair (100).

5. Mounting mechanism according to claim 4, characterized in that the insertion shaft (13) additionally comprises a truncated cone-shaped end. Petition 870250076616, dated 08 / 28 / 2025, page 61 / 75 2 / 4 6. Mounting mechanism according to any one of claims 1 to 5, characterized in that the flat extension (14) has a rectangular geometry, the body of which rests on part of the base (110) of the modular armchair (100).

7. Mounting mechanism according to any one of claims 1 to 6, characterized in that the tubular element (15) is configured as a hinge that allows the joint between the mounting plate (11) and the flat extension (14) to rotate in a range between 0 and 180°.

8. Mounting mechanism according to any one of claims 1 to 7, characterized in that it further comprises at least one second connector (20) configured to join contiguous bases (110) of a modular armchair together.

9. Mounting mechanism according to claim 8, characterized in that the at least one second connector comprises: at least two insertion shafts (21) configured to be inserted, each, into a base (110) different from a modular chair (100); and a flat extension (22) configured as an intermediate anchoring point between the at least two insertion shafts (21).

10. Mounting mechanism according to claim 9, characterized in that the at least two insertion shafts (21) have an elongated cylindrical geometry extending perpendicularly from the flat extension (22) and are configured to be inserted, each, into a hole of two different bases (110) of a modular chair (100).

11. Mounting mechanism according to claim 10, characterized in that the at least two insertion shafts (21) additionally comprise a truncated cone-shaped end.

12. Assembly mechanism according to any of the Petition 870250076616, dated 08 / 28 / 2025, page 62 / 75 3 / 4 claims 9 to 11, characterized in that the flat extension (22) has a rectangular geometry whose body rests on part of the two bases (110) of the modular armchair (100) to be joined.

13. Mounting mechanism for modular armchairs, characterized in that it comprises at least one first connector (10) configured to join a base (110) of a modular armchair (100) with a backrest (120) or with at least one armrest (130), and at least one second connector (20) configured to join contiguous bases (110) of a modular armchair to each other, wherein the at least one first connector (10) comprises: a mounting plate (11) configured to be fixed to the backrest (120) and / or armrest (130) of the modular armchair (100), which comprises at least one fixing hole (12); an insertion shaft (13) configured to be inserted into the base (110) of the modular armchair (100); a flat extension (14) configured as an intermediate anchoring point between the mounting plate (11) and the insertion shaft (13); and a tubular element (15) configured to connect, in an articulated manner, the mounting plate (11) with the flat extension (14);and wherein the at least one second connector (20) comprises: at least two insertion shafts (21) configured to be inserted, each, into a base (110) different from a modular chair (100); and a flat extension (22) configured as an intermediate anchor point between the at least two insertion shafts (21).

14. Mounting mechanism according to claim 13, characterized in that the mounting plate (11) of at least one first connector (10) has a planar geometry with at least four straight sides and perpendicular vertices, preferably with two fixing holes (12). Petition 870250076616, dated 08 / 28 / 2025, page 63 / 75 4 / 4 15. Mounting mechanism according to claim 13 or 14, characterized in that the insertion shaft (13) of at least one first connector (10) has an elongated cylindrical geometry that extends perpendicularly from the flat extension (14) and is configured to be inserted into a hole (111) of the base (110) of a modular chair (100).

16. Mounting mechanism according to claim 13 or 14, characterized in that the at least two insertion shafts (21) of the at least one second connector (20) have elongated cylindrical geometry extending perpendicularly from the flat extension (22) and are configured to be inserted, each, into a hole of two different bases (110) of a modular chair (100).

17. Mounting mechanism according to claim 15 or 16, characterized in that the insertion shafts (13, 21) additionally comprise a truncated cone-shaped end.

18. Assembly mechanism according to any one of claims 13 to 17, characterized in that the flat extension (14) of at least one first connector has rectangular geometry, the body of which rests on part of the base (110) of the modular armchair (100).

19. Mounting mechanism according to any one of claims 13 to 18, characterized in that the tubular element (15) of at least one first connector (10) is configured as a hinge that allows the joint between the mounting plate (11) and the flat extension (14) to rotate in a range between 0 and 90°.

20. Assembly mechanism according to any one of claims 13 to 19, characterized in that the flat extension (14, 22) has a rectangular geometry whose body rests on part of the bases (110) of the modular armchair (100). Petition 870250076616, dated 08 / 28 / 2025, pp. 64 / 75

Images