Modular dismountable covered spring sofa

Abstract

The application discloses a modular detachable covered spring sofa, and relates to the field of rollable furniture. The spring sofa comprises a cushion module, a backrest module and an outer covering layer. The cushion module is provided with springs inside. The backrest module and the cushion module are combined and connected through a detachable connecting structure to form a combined body in the shape of a sofa. The outer covering layer covers the periphery of the combined body and is in shape-adapted constraint cooperation with a support body. The spring sofa realizes transportation volume optimization and improves functional flexibility through the split combined structure and the integrated design of the cushion compression and rolling.

Description

Technical Field

[0001] This application relates to the field of rollable furniture, and in particular to a modular, detachable, wrap-around spring sofa. Background Technology

[0002] In the field of furniture design, spring sofas, as an innovative product, are gradually gaining market attention. They use individually pocketed springs as the main load-bearing and elasticity units, forming a stark contrast to traditional framed sofas. Traditional framed sofas typically rely on a combination of a wooden frame and spring system to provide support and elasticity, while spring sofas cleverly integrate individually pocketed springs into the seat and backrest. Each spring is individually wrapped in a fabric pocket. This design allows the sofa to provide even support and comfortable elasticity while effectively reducing friction noise between the springs and extending its lifespan.

[0003] However, despite their excellent comfort and durability, spring sofas present a significant challenge in practical transportation. Unlike regularly shaped furniture such as mattresses, spring sofas have a more complex shape, typically exhibiting an irregular three-dimensional structure. This makes them difficult to fold effectively after compression, and even after compression, their shape remains unsuitable for transport by rolling. This irregularity results in spring sofas occupying a large space during transportation, hindering efficient use of transport vehicle volume and increasing shipping costs. Furthermore, due to their large size, consumers may hesitate to purchase online due to concerns about shipping costs and delivery difficulties, which to some extent affects their online shopping experience and willingness to buy.

[0004] Another drawback of existing spring sofas is that they are difficult to restore to an ideal shape after being compressed and then unfolded. Because the sofa's structure and materials are subjected to significant stress during compression, it may not fully return to its original shape and size after the compression is released. This not only affects the sofa's appearance but may also negatively impact the user's comfort, thereby reducing the overall product quality and market competitiveness.

[0005] Developing a removable, roll-up integrated spring sofa is of great significance and value in addressing the problems faced by existing spring sofas during transportation and use. Utility Model Content

[0006] The purpose of this application is to overcome at least one deficiency of the prior art and provide a modular, detachable, wrap-around spring sofa that optimizes transport volume and improves functional flexibility through a split assembly structure and an integrated cushion compression design.

[0007] To achieve the above objectives, this application discloses a modular, detachable, covered spring sofa, which includes a seat cushion module, a backrest module, and an outer cover module.

[0008] The compressible and rollable seat cushion module contains a spring; the backrest module and the seat cushion module are combined and connected by a detachable connection structure to form a sofa-shaped assembly.

[0009] The outer cladding covers the periphery of the assembly and forms a shape-fitting constraint with the support.

[0010] As an optional technical solution, the spring is a pocketed independent spring, with several springs distributed in a matrix within the seat cushion module. Each pocketed independent spring unit maintains its relative positional relationship through a flexible limiting structure, thereby enabling the seat cushion module to be compressibly rolled up.

[0011] In an optional embodiment, the springs in the seat cushion module are configured with variable stiffness to achieve a variable configuration of regional support. Preferably, the seat depth is divided into a front support area, a middle transition area, and a rear support area with different stiffnesses.

[0012] As another optional technical solution, the springs in the seat cushion mold are connecting springs. The two ends of the connecting springs are planar closed structures, forming an upper closed end and a lower closed end respectively. The upper closed ends and lower closed ends of adjacent connecting springs are connected to each other through connecting elements, thereby forming a compressible roll-up spring net, thus realizing the compressible roll-up of the seat cushion module.

[0013] Furthermore, the inner surface of the outer coating is provided with an anti-slip positioning structure.

[0014] Furthermore, the outer cover layer has at least one openable and closable opening, and a sealing component is provided at the opening to enable the opening to be opened and closed.

[0015] Furthermore, the sealing component is a linear closing component or a constraint component provided along the edge of the opening, wherein the linear closing component is a zipper structure and the constraint component is a strap or a buckle.

[0016] Furthermore, the detachable connection structure includes a connection component disposed on the mating surface of the seat cushion module and the backrest module, the connection component being selected from at least one of the following: hook and loop adhesive tape, elastic buckle assembly, or adjustable strap assembly.

[0017] Furthermore, an anti-slip textured layer is laminated on the mating surface of the seat cushion module and the backrest module. Preferably, the anti-slip textured layer is composed of an array of micro-protrusions.

[0018] In an optional embodiment, an auxiliary positioning structure is also provided between the seat cushion module and the backrest module. The auxiliary positioning structure includes a raised guide block and a groove respectively disposed on the seat cushion module and the backrest module and interlocked with each other.

[0019] Furthermore, the working surface of the assembly that comes into contact with the human body is provided with a soft covering layer, which can be detached in whole or in part.

[0020] Furthermore, the soft covering is filled with a soft material to improve comfort when in contact with the human body.

[0021] Compared with the prior art, this application has at least one of the following beneficial effects:

[0022] 1. Significantly Improved Transportation Efficiency: Through the compressible roll-up design of the seat cushion module and the foldable structure of the backrest module, each module can be independently compressed into a flat state before being rolled up, significantly reducing the overall transportation volume. The separate design of the outer cover module and the support body further optimizes the utilization of logistics space, effectively solving the problem of large space occupation during the transportation of traditional spring sofas.

[0023] 2. Convenient maintenance and functional expansion: The removable soft padding layer supports independent replacement or cleaning, and the modular connection method allows non-professionals to quickly complete the assembly, reducing maintenance costs.

[0024] 3. Comfort and durability are optimized in tandem: The progressive spring stiffness configuration and composite filling design achieve a uniform distribution of human body pressure, while enhancing support performance under long-term use.

[0025] The above-mentioned technical effects, through a detachable and modular architecture, effectively solve the technical shortcomings of traditional spring sofas in terms of transportation efficiency, shape restoration, and maintenance costs.

[0026] The beneficial effects listed above are not exhaustive of all advantages. Other potential beneficial effects and detailed technical implementation methods will be further disclosed in the embodiments or other descriptive sections of this application. Attached Figure Description

[0027] A better understanding of various aspects of this disclosure will be achieved by reading the following detailed description in conjunction with the accompanying drawings. The positions, dimensions, and extents of the structures shown in the drawings, etc., do not always represent actual positions, dimensions, and extents. In the drawings:

[0028] Figure 1 This is a schematic diagram of a structure in one embodiment disclosed in this application.

[0029] Figure 2 This is a schematic diagram of another embodiment disclosed in this application.

[0030] Figure 3This is a schematic diagram of the structure after removing the outer coating layer in one embodiment of this application.

[0031] Figure 4 This is a schematic diagram of the structure of an embodiment disclosed in this application, in which the soft cover layer is flipped up after the outer cover layer is removed and the backrest module is separated.

[0032] Figure 5 This is a schematic diagram of the internal structure of the cushion module in one embodiment of this application.

[0033] Figure 6 This is a schematic diagram of the structure of a spring inside a cushion module disclosed in this application. The spring in the figure is a pocket spring, and the structure of one of the springs in the figure is a perspective view.

[0034] Figure 7 This is a schematic diagram of the internal structure of a spring in a seat cushion module disclosed in this application from the perspective of a CRRC (China Railway Rolling Stock Corporation). The spring in the diagram is a pocket spring.

[0035] Figure 8 This is a schematic diagram of the internal structure of a spring in a seat cushion module disclosed in this application from the perspective of a CRRC (China Railway Rolling Stock Corporation). The spring in the diagram is a connecting spring.

[0036] Figure 9 This is a schematic diagram of a single connected spring. Detailed Implementation

[0037] The present disclosure will now be described with reference to the accompanying drawings, which illustrate several embodiments of the present disclosure. However, it should be understood that the present disclosure can be presented in many different ways and is not limited to the embodiments described below; in fact, the embodiments described below are intended to make the disclosure more complete and to fully illustrate the scope of protection of the present disclosure to those skilled in the art. It should also be understood that the embodiments disclosed herein can be combined in various ways to provide further additional embodiments.

[0038] It should be understood that the same reference numerals denote the same elements in all the accompanying drawings. For clarity, the dimensions of certain features may be modified in the drawings.

[0039] It should be understood that the terminology used in this specification is for describing specific embodiments only and is not intended to limit this disclosure. All terms used in this specification (including technical and scientific terms) have the meanings commonly understood by those skilled in the art, unless otherwise defined. For the sake of brevity and / or clarity, techniques, methods, and devices known to those skilled in the art may not be discussed in detail; however, where appropriate, such techniques, methods, and devices should be considered part of this specification.

[0040] Unless otherwise specified, the singular forms “a,” “the,” and “the” used in this specification include the plural forms. The terms “comprising,” “including,” and “containing” used in this specification indicate the presence of the claimed feature but do not exclude the presence of one or more other features. The term “and / or” used in this specification includes any and all combinations of one or more of the relevant listed items.

[0041] See attached document Figures 1 to 5 This embodiment relates to a modular, detachable, wrap-around spring sofa, whose overall structure consists of three main parts: a seat cushion module 1, a backrest module 2, and an outer covering layer 3. The seat cushion module 1 and the backrest module 2 are connected by a detachable connection structure, assembled as shown in the attached figure. Figure 1 and 2 The basic shape of the sofa is formed by the outer module 3 covering its perimeter, creating a complete sofa appearance and functionality.

[0042] It should be noted that the appendix Figure 1 It's the shape of a sofa in the office, and the attached... Figure 2 It is in the form of a two-seater sofa. The two attached pictures are for illustration purposes. This embodiment can have multiple implementation forms under the same structure to meet different usage needs.

[0043] See attached document Figure 5-7 The seat cushion module 1 contains a matrix of individually pocketed spring units 5. These units are positioned relative to each other via a flexible limiting structure, forming an elastic matrix that is both highly elastic and compressible. The design principle of these individually pocketed springs is that each spring operates independently, effectively reducing mutual interference and providing more precise support and a comfortable seating experience. Simultaneously, the flexible limiting structure ensures the stability of the spring units during normal use while allowing for relative displacement of the spring units when compression is required, thus reducing volume and facilitating transportation.

[0044] It should also be noted that, referring to the appendix Figure 8 and 9 In some embodiments, the seat cushion module 1 can also utilize a connecting spring 6 to provide elastic support and ultimately achieve compressibility and curlability of the seat cushion module 1. The two ends of the connecting spring 6 are planar closed structures, forming an upper closed end and a lower closed end, respectively.

[0045] The upper and lower closed ends of adjacent connected springs 6 are connected to each other by connecting elements, thereby forming a compressible coiled spring net.

[0046] It should be noted that the manufacturing process and arrangement of the connecting spring 6 are well-known technologies to those skilled in the art and do not require further detailed explanation.

[0047] The backrest module 2 is made of memory foam or sponge material, and together with the seat cushion module 1, it provides users with all-round comfortable support.

[0048] The connection between the backrest module 2 and the seat cushion module 1 adopts a detachable connection structure, which can be selected from hook and loop adhesive tape, elastic buckle assembly, or adjustable strap assembly. Taking hook and loop adhesive tape as an example, it is characterized by easy installation and removal and a stable connection. During installation, the user only needs to press the parts with hook and loop adhesive tape together to complete the connection between the backrest and the seat cushion. The elastic buckle assembly provides a more secure and flexible connection method while ensuring connection strength, which is suitable for the needs of different usage scenarios. The adjustable strap assembly gives the user the ability to flexibly adjust the tightness of the connection between the backrest and the seat cushion according to their own preferences and actual usage, further improving the convenience and comfort of use.

[0049] The outer layer 3 covers the periphery of the assembly formed by the seat cushion module 1 and the backrest module 2, forming a shape-fitting constraint with the support body. In a preferred embodiment, the inner surface of the outer layer is provided with an anti-slip positioning structure. This design can effectively prevent the outer layer from shifting or loosening during use, ensuring that the outer layer always fits tightly against the surface of the assembly, maintaining the overall shape and aesthetics of the sofa.

[0050] Furthermore, to achieve detachability, the outer cover 3 has at least one openable and closable opening, with a sealing component at the opening. This sealing component can be a linear closure component or a constraint component set along the edge of the opening. The linear closure component, exemplified by a zipper structure, offers advantages such as smooth opening and closing and good sealing, allowing users to easily open and close the opening using the zipper when assembling or disassembling the outer cover. The constraint component, such as a drawstring or buckle, provides a simpler and more decorative sealing method.

[0051] To further enhance the connection between the seat cushion module 1 and the backrest module 2, an anti-slip textured layer, preferably composed of a micro-protrusion array, is applied to the mating surfaces of the seat cushion module 1 and the backrest module 2. The design principle of this micro-protrusion array is to effectively prevent relative sliding between the backrest module and the seat cushion module during use by increasing surface friction, thereby ensuring the overall stability of the sofa.

[0052] Meanwhile, in an optional embodiment, the mating surfaces of the seat cushion module 1 and the backrest module 2 are also provided with an auxiliary positioning structure, including protruding guide blocks and grooves respectively disposed on the seat cushion module and the backrest module and interlocking with each other. This auxiliary positioning structure can play a role in quick alignment and initial fixation during installation, greatly improving the efficiency and accuracy of installation.

[0053] To further enhance user comfort, a soft padding layer 4 is detachably installed on all or part of the working surface of the assembly that comes into contact with the human body. The soft padding layer 4 is filled with soft materials, such as high-density sponge or memory foam. These materials have good flexibility and resilience, and can form a comfortable buffer layer between the user and the spring system, making the sofa softer to the touch, conforming to the curves of the human body, effectively relieving pressure during long periods of sitting or lying down, and improving comfort.

[0054] In an optional embodiment, the pocketed independent spring units of the seat cushion module 1 adopt a progressive stiffness configuration, dividing the seat depth into a front support zone, a middle transition zone, and a rear support zone with different stiffnesses. The spring units in the front support zone have higher stiffness, providing strong support for the user's legs and preventing them from sinking. The spring units in the middle transition zone have moderate stiffness, providing a smooth transition and evenly distributing the support force. The spring units in the rear support zone have relatively lower stiffness, providing moderate support for the buttocks and lower back, ensuring sufficient support without making the user feel too firm or uncomfortable. This progressive stiffness configuration is based on ergonomics, fully considering the force characteristics of different parts of the body when sitting. By rationally distributing the stiffness of the springs in each area, it achieves scientific support for the body, improving the comfort and health of the sofa.

[0055] In practical use, after purchasing the sofa, consumers can assemble the seat cushion module 1 and backrest module 2 using the selected detachable connection structure, following the instructions in the product manual. For example, if using hook-and-loop adhesive tape, the hook-and-loop adhesive tape on the mating surfaces of both modules is pressed together to ensure a tight fit between the backrest and seat cushion; if using elastic buckle components, the buckles are aligned and pressure is applied to engage them, completing the connection. Next, the outer cover 3 is installed using the sealing component at the opening. If a zipper structure is used, the zipper is closed to tightly cover the outer cover around the assembly, forming a complete sofa appearance. For routine cleaning, if the outer cover needs washing, simply open the sealing component, remove the outer cover for washing, and reinstall it after cleaning. The operation is simple and maintenance is worry-free.

[0056] Compared to traditional spring sofas, this modular, detachable, and wrap-around spring sofa allows for separate disassembly and packaging of the seat cushion module 1, backrest module 2, and outer cover module 3 during transportation, significantly reducing volume, improving transportation efficiency, and lowering costs. Simultaneously, its unique structural design and material selection ensure the sofa's comfort, stability, and durability during use, providing consumers with a more convenient, high-quality, and economical furniture option, demonstrating significant market competitiveness and practical value.

[0057] It should be noted that some basic connection methods involved in this embodiment, such as hook and loop adhesive tape, elastic buckle assembly or adjustable strap assembly, have specific structures and working principles that are known to those skilled in the art and are existing technologies, and will not be described in detail here.

[0058] While exemplary embodiments of this disclosure have been described, those skilled in the art will understand that various changes and modifications can be made to the exemplary embodiments of this disclosure without departing from the spirit and scope thereof. Therefore, all changes and modifications are included within the scope of protection of this disclosure as defined by the claims. This disclosure is defined by the appended claims, and equivalents of those claims are also included.

Claims

1. A modular, detachable, wrap-around spring sofa, characterized in that, The spring sofa includes a seat module, a backrest module, and an outer cover. The compressible and rollable seat cushion module contains a spring; the backrest module and the seat cushion module are connected by a detachable connection structure to form a sofa-shaped assembly. The outer cladding covers the periphery of the assembly and forms a shape-fitting constraint with the support.

2. A modular, detachable, wrap-around spring sofa as described in claim 1, characterized in that, The springs are pocket springs, and several springs are distributed in a matrix within the seat cushion module. Each spring maintains its relative position through a flexible limiting structure, thereby enabling the seat cushion module to be compressibly rolled up.

3. A modular, detachable, wrap-around spring sofa as described in claim 1, characterized in that, The springs inside the seat cushion mold are connecting springs. The two ends of the connecting springs are planar closed structures, forming an upper closed end and a lower closed end respectively. The upper closed ends and lower closed ends of adjacent connecting springs are connected to each other through connecting elements, thereby forming a compressible roll-up spring net, which enables the seat cushion module to be compressibly rolled up.

4. A modular, detachable, wrap-around spring sofa as described in claim 1, characterized in that, The outer cover has at least one openable opening, and a sealing component is provided at the opening to enable the opening and closing of the opening.

5. A modular, detachable, wrap-around spring sofa as described in claim 4, characterized in that, The sealing component is a linear closing component or a constraint component provided along the edge of the opening, wherein the linear closing component is a zipper structure and the constraint component is a strap or a buckle.

6. A modular, detachable, wrap-around spring sofa as described in claim 1, characterized in that, The detachable connection structure includes a connection component disposed on the mating surface of the seat cushion module and the backrest module, wherein the connection component is selected from at least one of the following: hook and loop adhesive tape, elastic buckle assembly or adjustable strap assembly.

7. A modular, detachable, wrap-around spring sofa as described in claim 1, characterized in that, An auxiliary positioning structure is also provided between the seat cushion module and the backrest module. This auxiliary positioning structure includes a raised guide block and a groove respectively set on the seat cushion module and the backrest module and interlocking with each other.

8. A modular, detachable, wrap-around spring sofa as described in claim 1, characterized in that, The working surface of the assembly that comes into contact with the human body is provided with a soft covering layer that can be detached in whole or in part.

9. A modular, detachable, wrap-around spring sofa as described in claim 1, characterized in that, The springs within the seat cushion module employ a variable stiffness configuration to achieve varying regional support.

10. A modular, detachable, wrap-around spring sofa as described in claim 1, characterized in that, The inner surface of the outer coating has an anti-slip positioning structure.

Images