Backrest and seat

Abstract

The present disclosure relates to a backrest and a seat. The backrest comprises an integrated frame body and a support assembly mounted on the frame body. The support assembly comprises hooks and elastic members, the hooks being detachably mounted on the frame body along the height direction of the backrest, and the elastic members being mounted on the upper and lower hooks. The present application completely abandons the traditional woodworking dependence through the design of integrated frame and modular hooks and elastic members, realizes the standardization of the assembly process. This not only greatly improves the production efficiency and product size consistency, but also reduces the dependence on manpower and production failure rate, and lays a solid foundation for modular mass production.

Description

Technical Field

[0001] This disclosure relates to the field of furniture technology, and more particularly to a backrest and seating. Background Technology

[0002] Existing sofa backrest frames are primarily wooden frame structures, consisting of nailing together pieces of wood of different shapes. Metal hooks are then nailed to the frame, and serpentine springs are inserted. After the springs are inserted, the metal hooks are tapped to hold them in place and prevent them from shifting or moving. The entire sofa backrest manufacturing process is complex, inefficient, and results in inconsistent product dimensions. Quality relies heavily on the technical experience of the operators, leading to a high defect rate and making modular mass production impossible. Utility Model Content

[0003] This disclosure provides a backrest and a seat to address the shortcomings of related technologies.

[0004] According to a first aspect of the present disclosure, a backrest is provided, comprising an integral frame body and a support assembly mounted on the frame body; the support assembly includes hooks and elastic members, wherein the hooks are detachably mounted on the frame body along the height direction of the backrest, and the elastic members are mounted on two hooks, one above the other.

[0005] Optionally, the hook includes a front plate, a rear plate, and a hook body. The front plate and the rear plate are arranged opposite to each other. One end of the hook body is connected to the bottom of the front plate, and the other end extends upward to form an installation channel with the front plate.

[0006] Optionally, the front plate includes an upper plate and a lower plate, the bottom end of the upper plate is connected to the top end of the lower plate and a positioning stop is formed at the connection, and the bottom end of the lower plate is connected to the hook body.

[0007] Optionally, the frame body is provided with a slot for positioning the hook, and the inner side of the slot is provided with a positioning block arranged opposite to it, and the bottom of the slot is provided with a limiting block; wherein, the positioning block is engaged in the cavity formed by the front plate and the rear plate, and the positioning stop abuts against the limiting block.

[0008] Optionally, a plurality of elastic elements are provided along the height direction perpendicular to the backrest, and the plurality of elastic elements are configured to employ at least one number of sections.

[0009] Optionally, the integrated frame body includes an upper support surface and a lower support surface, wherein the upper support surface and the lower support surface are arranged at an obtuse angle.

[0010] Optionally, it also includes a center rod, which is fixed to the frame body along a height direction perpendicular to the backrest, wherein the center rod is located at the junction of the upper support surface and the lower support surface.

[0011] Optionally, it also includes a faceplate fastener, wherein the intermediate rod is provided with a first mounting plate pointing to the bottom of the frame body, and the bottom of the frame body is provided with a second mounting plate pointing to the intermediate rod, and the faceplate fastener is mounted on the first mounting plate and the second mounting plate.

[0012] Optionally, it also includes a connector disposed on the bottom side of the frame body.

[0013] According to a second aspect of the present disclosure, a seating arrangement is provided, which includes the backrest described in the first aspect.

[0014] The technical solutions provided by the embodiments of this disclosure may include the following beneficial effects: As can be seen from the above embodiments, this application, through its integrated frame and modular hook and elastic component design, completely eliminates reliance on traditional woodworking and achieves standardized assembly processes. This not only significantly improves production efficiency and product dimensional consistency but also reduces reliance on manpower and production defect rates, laying a solid foundation for modular mass production.

[0015] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0016] The accompanying drawings, which are incorporated in and form a part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure.

[0017] Figure 1 This is a schematic diagram of the backrest structure according to an exemplary embodiment.

[0018] Figure 2 This is a schematic diagram of the backrest structure according to another exemplary embodiment.

[0019] Figure 3 This is a schematic diagram of the backrest structure according to another exemplary embodiment.

[0020] Figure 4 yes Figure 1 A schematic diagram of the backrest structure from another perspective.

[0021] Figure 5 This is a schematic diagram of the structure of a hook according to an exemplary embodiment.

[0022] Figure 6 This is a schematic diagram of a slot on a frame body according to an exemplary embodiment. Detailed Implementation

[0023] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this disclosure. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this disclosure as detailed in the appended claims.

[0024] The terminology used in this disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. The singular forms “a,” “the,” and “the” as used in this disclosure and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any and all possible combinations of one or more of the associated listed items.

[0025] It should be understood that although the terms first, second, third, etc., may be used in this disclosure to describe various information, such information should not be limited to these terms. These terms are used only to distinguish information of the same type from one another. For example, without departing from the scope of this disclosure, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Depending on the context, the word "if" as used herein may be interpreted as "when," "when," or "in response to determination."

[0026] Reference Figures 1-4 As shown, this application discloses a backrest, which includes a frame body 10, a support component 20 fixed on the frame body 10, a faceplate buckle 30, and a connector 40.

[0027] The main frame 10 is made of plastic through blow molding or injection molding, which avoids stress concentration points and structural weak points that may occur when assembling by means of screws, welding or bonding.

[0028] The frame body 10 includes an upper support surface 12 and a lower support surface 13, which are respectively enclosed by the frame body 10. The upper support surface 12 and the lower support surface 13 are arranged at an obtuse angle.

[0029] Specifically, the obtuse angle is preferably between 95° and 120°. This angle range conforms to ergonomic principles, allowing the backrest to better fit the user's back curve and providing differentiated support for the lumbar and thoracic spine regions. The upper support surface 12 primarily supports the user's back, while the lower support surface 13 provides effective support for the lumbar region, together forming a support system that conforms to the physiological curvature, significantly improving sitting comfort. The frame body 10 includes a middle rod 14, which is fixed to the frame body 10 along the height direction perpendicular to the backrest, wherein the middle rod 14 is located at the junction of the upper support surface 12 and the lower support surface 13.

[0030] The middle rod 14 is provided with a first mounting plate 15 pointing to the bottom of the frame body 10, and the bottom of the frame body 10 is provided with a second mounting plate 16 pointing to the middle rod 14. The first mounting plate 15 and the second mounting plate 16 are provided with faceplate buckle strips 30.

[0031] The support assembly 20 includes hooks 21 and elastic elements 22. Along the height direction of the backrest, the hooks 21 are detachably mounted on the frame body 10, and the elastic elements 22 are mounted on the upper and lower hooks 21. In this embodiment, the elastic element 22 is a serpentine spring.

[0032] Please refer to the reference again. Figure 5 As shown, the hook 21 includes a front plate 211, a rear plate 212 and a hook body 213, which are integrally injection molded.

[0033] The front plate 211 and the rear plate 212 are arranged opposite to each other. One end of the hook 213 is connected to the bottom of the front plate 211, and the other end extends upward to form an installation channel with the front plate 211 to position the elastic element 22. Reinforcing ribs 216 are provided within the cavity formed by the front plate 211 and the rear plate 212. This ensures that under long-term tensile loads on the elastic element 22, the hook 21 will not undergo excessive deformation or break due to stress concentration, thus guaranteeing the service life and reliability of the hook 21.

[0034] The front plate 211 includes an upper plate 214 and a lower plate 215. The bottom end of the upper plate 214 is connected to the top end of the lower plate 215, forming a positioning stop at the connection. The bottom end of the lower plate 215 is connected to the hook body 213. It should be noted that the positioning stop mentioned here refers to the part of the upper plate 214 that protrudes relative to the lower plate 215 in the left-right direction shown in the figure.

[0035] Please refer to the reference again. Figure 6 As shown, the frame body 10 is provided with a slot 11 for a positioning hook 21, and a positioning block 111 is provided on the inner side of the slot 11. A limiting block 112 is provided at the bottom of the slot 11. The positioning block 111 is engaged in the cavity formed by the front plate 211 and the rear plate 212, and the positioning stop abuts against the limiting block 112.

[0036] During installation, the hook 21 is inserted into the slot 11, and the positioning block 111 is embedded in the cavity between the front and rear plates 212, achieving lateral and longitudinal limiting and effectively preventing the hook 21 from shaking during use. At the same time, the stop at the bottom of the upper plate 214 abuts against the limiting block 112 at the bottom of the slot 11, forming a reliable vertical support.

[0037] Along the height direction perpendicular to the backrest, a plurality of elastic elements 22 are provided, and the elastic elements 22 are configured to have at least one number of sections. This application can provide different backrest experiences by using elastic elements 22 with different numbers of sections, adapting to different user groups. Among them, the areas with fewer elastic elements 22 sections are firmer.

[0038] Specifically, such as Figure 1 As shown, the backrest uses 10.5-section serpentine springs, resulting in a relatively soft feel. Figure 2 As shown, the backrest uses 10.5-section, 10-section, 10.5-section, 10-section, and 10.5-section serpentine springs in sequence, providing a moderate level of comfort. Figure 3 As shown, the backrest uses 10.5-section, 10-section, 10-section, 10-section and 10.5-section serpentine springs in sequence, making it feel rather firm.

[0039] To achieve synchronous deformation and overall support of the serpentine springs and simplify the installation process, this embodiment introduces a transverse connecting member. This connecting member is preferably a transversely arranged connecting rod or strap. Specifically, along the transverse direction of the backrest, the plurality of serpentine springs are interconnected through this transverse connecting member to form an integrated elastic support network.

[0040] The connector 40 is disposed on the bottom side of the frame body 10. In this embodiment, there are two connectors 40, which are respectively disposed opposite each other along the height direction perpendicular to the backrest, and both are located on the inner side of the frame body 10. In another embodiment, the connector 40 may also be located on the outer side of the frame body 10, depending on the position of the parts on the seat that mate with the connector 40. Therefore, the position of the connector 40 on the frame body 10 is not limited here.

[0041] The connector 40 is preferably a metal insert or snap-fit ​​structure, which is fixed to the frame body 10 by injection molding or post-assembly. Positioning the connector 40 on the inside of the frame body 10 results in a cleaner, more integrated look for the backrest. Positioning it on the outside facilitates installation and maintenance. The engagement of the connector 40 with the corresponding interface on the seat base enables quick connection and separation between the backrest and the base.

[0042] This application, through its integrated frame and modular hooks 21 and elastic elements 22, completely eliminates reliance on traditional woodworking, achieving standardization of the assembly process. This not only significantly improves production efficiency and product dimensional consistency but also reduces dependence on manpower and production defect rates, laying a solid foundation for modular mass production.

[0043] This application also discloses a seating arrangement including the aforementioned backrest. The backrest is fixed to the seating arrangement via a connector 40.

[0044] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the disclosure herein. This disclosure is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the following claims.

[0045] It should be understood that this disclosure is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.

Claims

1. A backrest, characterized in that, It includes an integrated frame body and a support assembly mounted on the frame body; the support assembly includes hooks and elastic elements, the hooks are detachably mounted on the frame body along the height direction of the backrest, and the elastic elements are mounted on the upper and lower hooks.

2. The backrest according to claim 1, characterized in that, The hook includes a front plate, a rear plate, and a hook body. The front plate and the rear plate are arranged opposite to each other. One end of the hook body is connected to the bottom of the front plate, and the other end extends upward to form an installation channel with the front plate.

3. The backrest according to claim 2, characterized in that, The front plate includes an upper plate and a lower plate. The bottom end of the upper plate is connected to the top end of the lower plate, and a positioning stop is formed at the connection. The bottom end of the lower plate is connected to the hook body.

4. The backrest according to claim 3, characterized in that, The frame body is provided with a slot for positioning the hook, and the inner side of the slot is provided with a positioning block arranged opposite to it. The bottom of the slot is provided with a limiting block. The positioning block is engaged in the cavity formed by the front plate and the rear plate, and the positioning stop abuts against the limiting block.

5. The backrest according to claim 1, characterized in that, A plurality of elastic elements are provided along the height direction perpendicular to the backrest, and the plurality of elastic elements are configured to employ at least one number of sections.

6. The backrest according to claim 1, characterized in that, The integrated frame body includes an upper support surface and a lower support surface, which are set at an obtuse angle.

7. The backrest according to claim 6, characterized in that, The frame body includes a central rod, which is fixed to the frame body along a height direction perpendicular to the backrest, wherein the central rod is located at the junction of the upper support surface and the lower support surface.

8. The backrest according to claim 7, characterized in that, It also includes a faceplate fastener, a first mounting plate pointing to the bottom of the frame body is provided on the middle rod, a second mounting plate pointing to the middle rod is provided at the bottom of the frame body, and the faceplate fastener is installed on the first mounting plate and the second mounting plate.

9. The backrest according to claim 1, characterized in that, It also includes a connector, which is disposed on the bottom side of the frame body.

10. A seating arrangement, characterized in that, It includes the backrest as described in any one of claims 1-9.

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