Backrest and seat

Abstract

The backrest comprises a supporting frame, the supporting frame is provided with a front face facing a user and a back face opposite to the front face, at least the front face of the supporting frame is integrally attached with a plastic part, and the surface structure of the plastic part is similar to the surface structure of the attached supporting frame area. The backrest and the seat are reasonable in structural arrangement, and the machining efficiency and consistency can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of seats, and in particular to a backrest and a seat. Background Art

[0002] Existing seating furniture, such as chairs, sofas, etc., can provide people with a comfortable resting position, are loved by people, and are widely used in people's home life.

[0003] In order to provide stable and reliable support, the backrest of existing seats is equipped with a support frame, which is generally made of wood and has a poor riding experience. In order to improve comfort, cut sponges are generally pasted on the outside of the support frame to achieve the comfort of the sofa. This solution has low efficiency, poor shape restoration, and poor consistency. Utility Model Content

[0004] The purpose of this application is to provide a backrest and seat with a simple structure that can improve processing efficiency and consistency.

[0005] In a first aspect, the present application provides a backrest comprising a support frame having a front side facing a user and a back side opposite to the front side, wherein at least the front side of the support frame is integrally attached with a plastic member, and the surface structure of the plastic member is similar to the surface structure of the support frame area to which it is attached.

[0006] By adopting the above technical solution, the support frame supports the back of the user. The plastic part can be a soft material, such as sponge or memory foam, to provide comfortable support and back cushioning effect. Such a design enables the backrest to provide stable and comfortable support, and can also be flexibly designed according to design requirements to achieve a more ergonomic and aesthetic structure and appearance to provide optimal comfort and support. Compared with the traditional way of using the wooden frame structure of the backrest as a support frame, the plastic part is firmly attached to the surface of the support frame by placing the support frame into a mold for integral molding. It has a beautiful appearance, good structural stability consistency, high processing efficiency, and the hardness of the plastic part can be flexibly adjusted to meet different usage requirements.

[0007] In a further embodiment, the hardness of the plastic member is less than the hardness of the support frame.

[0008] By adopting the above technical solution, the internal rigid support frame can be covered, which is both beautiful and has a good hand feel.

[0009] In a further embodiment, a comfort member is connected to a side of the plastic member facing the user, and the hardness of the comfort member is smaller than the hardness of the plastic member.

[0010] By adopting the above technical solution, the comfort part helps to provide the backrest with appropriate softness and comfort, achieves the effect of vertical double hardness, and improves the user's riding experience.

[0011] In a further embodiment, the plastic member has a recess, the comfort member is located in the recess, and an edge of the comfort member is higher than an edge of the mouth of the corresponding recess.

[0012] Plastic parts are generally molded sponges. When the plastic parts and comfort parts are matched and fixed, a step difference is likely to appear in the transition area between the two. The reason is that the hardness of the two parts is inconsistent. Under the action of the same force, the soft comfort part is more easily depressed, so a step difference is generated.

[0013] By adopting the above technical solution, height compensation is added in the transition area so that the edge of the comfort part is higher than the edge of the mouth of the concave part of the plastic part. In this way, a smooth appearance can be achieved after the face cover is covered. A concave part is designed on the plastic part so that the comfort part can be embedded in it. The position and size of this concave part match the comfort part to ensure its stability and aesthetics.

[0014] In a further embodiment, the comfort component has a uniform thickness.

[0015] By adopting the above technical solution, the curved shape of the support frame can be better adapted, which helps to provide a consistent support experience for the force-bearing position of the backrest. The comfort parts have the same thickness to ensure that the user always maintains stable support when using the backrest. Comfort parts are generally made of sponge. This uniform thickness of sponge can be cut from mass-produced sheets, which has lower processing and material costs. Uniform thickness can keep the deformation degree of each position the same, which helps to improve the durability and reliability of the comfort parts.

[0016] In a further solution, a slow-rebound component is connected to a side of the plastic component facing the user, and the hardness of the slow-rebound component is smaller than the hardness of the plastic component.

[0017] By adopting the above technical solution, the hardness of the slow-rebound member is less than that of the plastic member, so as to provide appropriate rebound and support when the user leans on it. The slow-rebound member is used to support the head of the person, and this design helps to relieve pressure and fatigue and improve the comfort of the user.

[0018] In a further solution, a connection area between the plastic member and the slow-rebound member is provided with a pit for increasing the displacement value of the slow-rebound member after being compressed.

[0019] By adopting the above technical solution, the connection area between the plastic part and the slow-rebound part is made into a shape with a pit to increase the displacement value of the slow-rebound part after being compressed. This design helps to improve the comfort of the cushion and provide a better support effect. The shape and size of the pit can be adjusted as needed to adapt to different usage scenarios and user needs.

[0020] In a further solution, a comfort component and a slow-rebound component are connected to a side of the plastic component facing the user, and the hardness of the comfort component and the slow-rebound component are both smaller than the hardness of the plastic component.

[0021] By adopting the above technical solution, the user-facing surface of the plastic part is connected to the comfort part and the slow-rebound part to provide better comfort and support effects for different parts of the user. The hardness of the comfort part and the slow-rebound part is less than that of the plastic part, so that the user will not feel uncomfortable during long-term use. This design is also in line with ergonomic principles and helps to reduce the pressure and fatigue of the user.

[0022] In a further embodiment, the comfort member is used to support the waist and back of the user, and the slow-rebound member is used to support the head of the user, and the hardness of the slow-rebound member is smaller than that of the comfort member.

[0023] By adopting the above technical solution, the head can be supported more softly and comfortably. This design helps to disperse the body weight, reduce the user's pressure and fatigue, and improve comfort.

[0024] In a second aspect, the present application provides a seat comprising a backrest as described in the first aspect.

[0025] The seat using the backrest of the first aspect has a simple structure and low cost, which can not only improve the production efficiency of the backrest, but also effectively increase the comfort experience of the human body by designing complex shapes through ergonomic principles.

[0026] In summary, the present application has at least one of the following beneficial technical effects:

[0027] 1. The backrest of the present application has a simple structure, low cost and is easy to produce and process.

[0028] 2. The backrest of this application has a more reasonable force structure, which effectively improves the stability and comfort of the product.

[0029] 3. The backrest of this application can be designed and processed with complex curved surfaces, with flexible and diverse shapes. It can also be more in line with ergonomic principles, reduce the user's pressure and fatigue, and improve comfort.

[0030] 4. The seat of the present application can not only improve the supporting strength, but also effectively increase the stress deformation of the backrest to improve the softness, thereby increasing the comfort experience of the human body. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a structural schematic diagram of the support frame;

[0032] Figure 2 It is a structural schematic diagram of the first embodiment of the backrest of the present application;

[0033] Figure 3 It is a schematic diagram of the exploded structure of the first embodiment of the backrest of the present application;

[0034] Figure 4 It is a structural schematic diagram of a plastic component of a second embodiment of the backrest of the present application;

[0035] Figure 5 It is a structural schematic diagram of a comfort member of the second embodiment of the backrest of the present application;

[0036] Figure 6 It is a structural schematic diagram of the second embodiment of the backrest of the present application;

[0037] Figure 7 yes Figure 6 AA section view in the figure;

[0038] Figure 8 yes Figure 7 Schematic diagram of the structure of the enlarged area B in the middle;

[0039] Fig. 9 It is a schematic structural diagram of the plastic part of the third embodiment of the backrest of the present application;

[0040] Fig.10 It is a sectional view of a third embodiment of a backrest.

[0041] Reference numerals:

[0042] 1. Support frame; 11. Front; 12. Back; 2. Plastic part; 21. Concave part; 211. Mouth; 212. Compensation area; 22. Connection area; 221. Pit; 3. Comfort part; 31. Edge; 4. Slow rebound part. DETAILED DESCRIPTION

[0043] In order to make the purpose, technical scheme and advantages of the embodiments of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings. The components of the embodiments of the present invention described and shown in the accompanying drawings can be arranged and designed in various configurations. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0044] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0045] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0046] In the description of the present application, it should be understood that the terms "up", "down", "left", "right", etc., indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present application.

[0047] Some embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the absence of conflict, the features of the following embodiments can be combined with each other.

[0048] Embodiment 1

[0049] See also Figure 1 The backrest comprises a support frame 1, the support frame 1 has a front side 11 facing the user and a back side 12 opposite to the front side 11, and the support frame 1 is used to form the structural shape of the backrest and provide supporting force.

[0050] See also Figure 1 and Figure 2 , at least the front side 11 of the support frame 1 is integrally attached with a plastic part 2, and the hardness of the plastic part 2 is less than the hardness of the support frame 1. According to the needs of product design, the plastic part 2 can be attached to both the front side 11 and the back side 12 of the support frame 1, and the surface structure of the plastic part 2 is similar to the surface structure of the area of ​​the support frame 1 to which it is attached. The plastic part 2 in this embodiment is a high-resilience sponge, and the support frame 1 is placed in a high-resilience sponge molding mold and molded into one piece with the high-resilience sponge.

[0051] See also Figure 2The side of the plastic part 2 facing the user is bonded with a comfort part 3 and a slow-rebound part 4, and the hardness of the comfort part 3 and the slow-rebound part 4 is less than the hardness of the plastic part 2. The comfort part 3 and the slow-rebound part 4 in this embodiment are both sponges, and the slow-rebound part 4 is a slow-rebound sponge. The comfort part 3 is used to support the user's waist and back, and the slow-rebound part 4 is used to support the user's head. The hardness of the slow-rebound part 4 in this embodiment is less than the hardness of the comfort part 3. According to the functional requirements of the product, the hardness of the slow-rebound part 4 can be designed to be greater than or equal to the hardness of the comfort part 3.

[0052] See also Figure 3 The comfort part 3 is cut from a sponge sheet of uniform thickness and then bonded to the corresponding area of ​​the plastic part 2 for fixation. The slow-rebound part 4 is a slow-rebound sponge that is bonded and fixed to the plastic part 2 and is located above the comfort part 3 (in the direction shown in the figure, that is, in the use state). The plastic part 2 is provided with a positioning protrusion to facilitate the limiting of the slow-rebound part 4 when it is bonded and fixed.

[0053] Embodiment 2

[0054] See also Figure 4-Figure 7 The difference between this embodiment and the first embodiment is that the connection structure between the comfort component 3 and the plastic component 2 is slightly different.

[0055] See also Figure 4 and Figure 5 The plastic part 2 has a concave portion 21, the shape of the comfort part 3 is adapted to the concave portion 21, and the comfort part 3 is bonded and fixed in the concave portion 21. After the comfort part 3 is fixed to the plastic part 2, the edge 31 of the comfort part 3 is higher than the edge of the mouth 211 of the corresponding concave portion 21.

[0056] See also Figure 6-Figure 8 , the plastic part 2 is coated on the outer surface of the support part, and the comfort part 3 and the slow rebound part 4 are pasted on the surface of the plastic part 2. Because the comfort part 3 is cut from a sponge sheet with uniform thickness, when the plastic part 2 and the comfort part 3 are matched and fixed, a step difference is likely to appear in the transition area where the end faces of the two parts are connected. The reason is that the hardness of the two parts is inconsistent. Under the action of the same force, the soft comfort part 3 is more likely to be depressed, so a step difference is generated.

[0057] See also Figure 8 In this embodiment, a compensation area 212 is added to the bottom edge of the concave portion 21 (the dotted line is the outline of the concave portion 21 in the first embodiment). The compensation area 212 increases the thickness of the bottom edge of the concave portion 21 of the plastic member 2. When the comfort member 3 is pasted in the concave portion 21, the edge 31 of the comfort member 3 is deformed and raised outward from the concave portion 21, so that the edge 31 of the comfort member 3 is higher than the edge of the mouth 211 of the concave portion 21 of the plastic member 2. In this way, the appearance of the cover can be smoothed to ensure the aesthetics of the product.

[0058] Embodiment 3

[0059] See also Fig. 9 and Fig.10 The difference between this embodiment and the second embodiment is that the connection area 22 between the plastic member 2 and the slow-rebound member 4 is provided with a concave pit 221 for increasing the displacement value of the slow-rebound member 4 after being compressed, so that the slow-rebound member 4 is more likely to deform and sink after being compressed, thereby improving the comfort of the human body. In order to improve the comfort, the concave pits 221 are evenly distributed and symmetrically arranged with respect to the backrest, and the cross-section of the concave pits 221 can be designed to be circular, rectangular or polygonal as needed.

[0060] Embodiment 4

[0061] This embodiment discloses a seat, specifically a sofa, comprising a seat cushion and the backrest of the first embodiment or the second embodiment, wherein the backrest is fixedly connected to the seat cushion.

[0062] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes, modifications, substitutions and variants, and these changes, modifications, substitutions and variants all fall within the scope of the utility model claimed for protection.

Claims

1. A backrest, characterized in that: The invention comprises a support frame (1), wherein the support frame (1) has a front side (11) facing a user and a back side (12) opposite to the front side (11), and at least the front side (11) of the support frame (1) is integrally attached with a plastic part (2), and the surface structure of the plastic part (2) is similar to the surface structure of the area of ​​the support frame (1) to which it is attached.

2. The backrest according to claim 1, characterized in that: The hardness of the plastic part (2) is smaller than the hardness of the support frame (1).

3. The backrest according to claim 1 or 2, characterized in that: A comfort component (3) is connected to the side of the plastic component (2) facing the user, and the hardness of the comfort component (3) is smaller than the hardness of the plastic component (2).

4. The backrest according to claim 3, characterized in that: The plastic part (2) has a recess (21), the comfort part (3) is located in the recess (21), and the edge (31) of the comfort part (3) is higher than the edge (31) of the corresponding mouth (211) of the recess (21).

5. The backrest according to claim 3, characterized in that: The thickness of the comfort component (3) is uniform.

6. The backrest according to claim 1 or 2, characterized in that: A slow-rebound component (4) is connected to the side of the plastic component (2) facing the user, and the hardness of the slow-rebound component (4) is smaller than the hardness of the plastic component (2).

7. The backrest according to claim 6, characterized in that The connection area (22) between the plastic part (2) and the slow-rebound part (4) is provided with a recess (221) for increasing the displacement value of the slow-rebound part (4) after being compressed.

8. The backrest according to claim 1 or 2, characterized in that: The side of the plastic part (2) facing the user is connected to a comfort part (3) and a slow-rebound part (4), and the hardness of the comfort part (3) and the slow-rebound part (4) is smaller than the hardness of the plastic part (2).

9. The backrest according to claim 8, characterized in that The comfort part (3) is used to support the waist and back of the user, and the slow-rebound part (4) is used to support the head of the user. The hardness of the slow-rebound part (4) is smaller than the hardness of the comfort part (3).

10. A seat, characterized in that: Comprising a backrest as described in any one of claims 1-9.

Images