WO2021196318A1

WO2021196318A1 - Upholstered furniture core and upholstered furniture

Info

Publication number: WO2021196318A1
Application number: PCT/CN2020/086450
Authority: WO
Inventors: 牟彦俊; 张海龙
Original assignee: 青岛优梦家居科技有限公司
Priority date: 2020-04-03
Filing date: 2020-04-23
Publication date: 2021-10-07
Also published as: JP3241161U; CN211984695U; AU2021100726A4; DE212020000283U1; KR20210002769U; KR200497508Y1

Abstract

Disclosed in the utility model is an upholstered furniture core. The upholstered furniture core comprises an elastic substrate, and a plurality of elastic grid units are formed in the elastic substrate, wherein each of the elastic grid units is defined by an elastic wall, any two adjacent elastic grid units are symmetrically arranged, and the elastic walls which define the two adjacent elastic grid units are connected to each other on a symmetry axis. Also provided is a upholstered furniture. The utility model relates to using the specially-designed elastic grid units defined by the elastic walls and the specially-designed arrangement and connection mode of the elastic grid units, so that the elastic substrate has certain flexibility and can yield a good support function, and the balance among comfortability, support performance and structural strength can be achieved; and when a certain area sinks greatly under the action of external force, the adjacent elastic grid units can approximately keep an independent support form, and enough support force can still be provided.

Description

Upholstered furniture core and upholstered furniture

Technical field

The utility model belongs to the technical field of soft furniture, in particular to a soft furniture core and a soft furniture adopting the core.

Background technique

Traditional upholstered furniture mainly refers to furniture with sponge and fabric as the main body. Mainly divided into bed type and sofa type. The most common products in the bed category are mattresses and pillows, and the most common products in the sofa category are cushions, cushions and armrests.

Traditional upholstered furniture usually uses springs, soft cushions, sponges or natural palm fibers as the main material, and uses adhesives to adhere to each other or form other connection methods. Especially with the continuous improvement of people's comfort requirements, sponge, natural palm fiber and latex are the most commonly used core materials for upholstered furniture. The open porosity in the core made of these materials is very low and can be considered as solid. The solid core has the following shortcomings: First of all, when used, the area where the solid core is attached to the surface of the human body is very large. Because the sponge, natural palm fiber and latex material have very good absorption and heat preservation capabilities, the surface of the human body and the solid core The temperature and humidity of the air in the area between the bodies are high, and the air cannot circulate smoothly, and the human body comfort is low. Secondly, because the curvature of the human body curve is complex and individual differences are large, the external force of the convex area on the surface of the solid core is higher than the external force on the surface of the solid core in other areas, and the unbalanced force makes the surface of the solid core. Obvious sag appears in the corresponding area of the, because the solid core is a continuous and flat whole, this will cause non-pressure sag in the surrounding area, making the surrounding area unable to support.

The above-mentioned information disclosed in the background art is only used to increase the understanding of the background art of the present application, and therefore, it may include the prior art that does not constitute the prior art known to those of ordinary skill in the art.

technical problem

The utility model is aimed at the solid core used in the existing upholstered furniture, which has a large fitting area with the surface of the human body, has low human body comfort and is easy to cause sinking, especially the non-pressure type sinking in the surrounding area, which leads to the surrounding area. Design and provide a core of soft furniture.

Technical solutions

In order to achieve the purpose of the above utility model, the utility model adopts the following technical solutions to achieve:

One aspect of the present invention provides a core body of upholstered furniture. The core body of the upholstered furniture includes an elastic matrix. A plurality of elastic grid units are formed in the elastic matrix. Any two adjacent elastic grid units are symmetrically arranged and the elastic walls surrounding the two adjacent elastic grid units are connected to each other on the axis of symmetry.

Further, each of the elastic mesh units has a first end surface and a second end surface respectively formed at two ends of the elastic wall, wherein the first end surfaces of the plurality of elastic mesh units jointly form the core of the elastic base body On the body stress surface, the second end surfaces of the plurality of elastic grid units are flush and jointly form the core connecting surface of the elastic base body.

In order to achieve a balance between structural strength, softness, and plasticity, the core of the upholstered furniture also includes an auxiliary base, which is connected to the connecting surface of the core; wherein, the elastic wall is made of thermoplastic elastomer material The auxiliary substrate is made of knitted fibers, woven fibers or non-woven fabrics; the elastic substrate and the auxiliary substrate are connected by hot blanching or integral injection molding.

In order to meet different strength requirements, it further includes: at least one support base connected to the auxiliary base, and the support base is made of sponge, latex, spinneret fiber, hose or spring.

Further, a plurality of supporting bases may be provided, and the plurality of supporting bases are stacked and the supporting base at the uppermost layer is connected to the auxiliary base.

The support base can also be directly connected with the core connecting surface, and the support base is made of sponge, latex, spinneret fiber, hose or spring.

A core may include multiple elastic bases to meet different size requirements, and a plurality of the elastic bases are evenly distributed; and further include: a first support base, the first support base being arranged around the elastic base, and The surface of the first supporting base is flush with the connecting surface of the core; and at least one second supporting base, which is connected to the connecting surface of the core and the surface of the first supporting base, respectively; A support base is made of sponge, latex, spinneret fiber, hose or spring; the second support base is made of sponge, latex, spinneret fiber, hose or spring.

Preferably, the elastic grid unit further includes: a hollow area formed on the inner side of the elastic wall; wherein the area of each of the hollow areas is 1 cm² to 16 cm², and there are a plurality of hollow regions. The total area of the regions is 70% to 90% of the area of the elastic matrix; the wall thickness of the elastic wall is 1 mm to 10 mm, the height of the elastic wall is 1 cm to 15 cm, and the width of the elastic grid unit The cross-section is rectangular, circular, elliptical, triangular or regular polygon.

Another aspect of the present invention provides a soft furniture that adopts a soft furniture core. The soft furniture core includes an elastic matrix, and a plurality of elastic grid units are formed in the elastic matrix; wherein, each of the elastic grids The units are all surrounded by elastic walls, any two adjacent elastic grid units are symmetrically arranged, and the elastic walls surrounding the two adjacent elastic grid units are connected to each other on the axis of symmetry.

Preferably, the upholstered furniture is a mattress.

Beneficial effect

Compared with the prior art, the advantages and positive effects of the utility model are:

The soft furniture core provided by the utility model and the soft furniture adopting the soft furniture core adopts specially designed elastic grid units surrounded by elastic walls and a specially designed arrangement and connection mode of the elastic grid units. The elastic matrix has a certain degree of flexibility and can play a good supporting role, and can achieve a balance between comfort, support, and structural strength; when a certain area is drastically sag under the action of external force, the adjacent elastic net The grid cells can generally maintain an independent support form and still provide sufficient support.

After reading the specific embodiments of the present invention in conjunction with the accompanying drawings, other features and advantages of the present invention will become more clear.

Description of the drawings

In order to explain the technical solutions in the embodiments of the present utility model more clearly, the following will briefly introduce the drawings that need to be used in the embodiments. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, without creative work, other drawings can be obtained based on these drawings.

Figure 1 is a schematic diagram of the structure of an elastic matrix in a specific embodiment of the core of upholstered furniture provided by the present invention;

Fig. 2 is a partial enlarged schematic diagram of A in Fig. 1;

Fig. 3 is a schematic diagram of the state of the elastic grid unit in the state where the force-bearing surface of the core in Fig. 1 is under force;

4 is a schematic diagram of another view of the state of the elastic grid unit in the state where the force-bearing surface of the core in FIG. 1 is under force;

Figure 5 is a comparison diagram of the force-sag curve of the core body of the upholstered furniture provided by the prior art and the present utility model;

Figure 6 is a schematic structural diagram of an optional structure of an elastic grid unit;

FIG. 7 is a top view of FIG. 6 to show the arrangement relationship of elastic grid units;

Figure 8 is a schematic structural diagram of another alternative structure of the elastic grid unit;

FIG. 9 is a top view of FIG. 8 to show the arrangement relationship of the elastic grid units;

Fig. 10 is a schematic structural diagram of another alternative structure of the elastic grid unit;

FIG. 11 is a top view of FIG. 10 to show the arrangement relationship of elastic grid units;

Figure 12 is a schematic structural diagram of another alternative structure of an elastic grid unit;

Figure 13 is a schematic structural diagram of another alternative structure of an elastic grid unit;

Fig. 14 shows the arrangement relationship of the elastic grid units in Fig. 12 and Fig. 13;

Figure 15 is a schematic structural diagram of a specific embodiment of a core body of upholstered furniture;

Figure 16 is a side view of a specific embodiment of the core of upholstered furniture;

Figure 17 is a side view of another specific embodiment of the core of upholstered furniture.

Embodiments of the present invention

In order to make the purpose, technical solutions and advantages of the present utility model clearer, the following will further describe the present utility model in detail with reference to the accompanying drawings and embodiments.

It should be noted that in the description of the present invention, the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate directions or The term of positional relationship is based on the direction or positional relationship shown in the drawings, which is only for ease of description, and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood In order to limit the utility model. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance.

Aiming at the solid core used in the existing upholstered furniture, which has a large area that fits on the surface of the human body, the human body is less comfortable and easy to cause sinking, especially the non-pressure sinking in the surrounding area, which causes the surrounding area to fail to lift. For the problem of supporting function, a new soft furniture core 1 is specially designed. This kind of upholstered furniture core 1 can be used in bed products, such as a mattress or a part of a mattress or a pillow or a part of a pillow; it can also be used in a sofa or seat category, such as a cushion or a part of a pillow. A part of the seat cushion is used as a cushion or a part of a back cushion, or used as a part of an armrest or armrest, etc. As shown in FIGS. 1 to 4, the core body 1 of such upholstered furniture includes an elastic base body 10, and a plurality of elastic grid units 11 are formed in the elastic base body 10. Each elastic grid unit 11 is surrounded by elastic walls 12. Two adjacent elastic grid units 11 have a common edge to form a line connection, or have a common side wall to form a plane connection. Specifically, any two adjacent elastic grid units 11 are arranged symmetrically, and the elastic walls 12 surrounding the two adjacent elastic grid units 11 are connected to each other on the axis of symmetry, that is, the common side or the common side wall is located on the axis of symmetry. . As shown in the examples in Figures 2 and 3, there are common sidewalls between adjacent elastic grid units 11-1 and 11-2, and the common sidewalls are located on the symmetry axis 15-1, forming two The surface connection between the two elastic grid units 11; and the adjacent elastic grid unit 11-1 and the elastic grid unit 11 have a common edge, and the common edge is located on the symmetry axis 15-2. This arrangement of the elastic grid units 11 makes the elastic base 10 have a certain degree of flexibility and can play a good supporting role, and has good use comfort.

More specifically, as shown in FIGS. 1 to 4, each elastic mesh unit 11 has a first end surface 13 and a second end surface 24 formed at both ends of the elastic wall 12. Wherein, the first end surfaces 13 of the plurality of elastic mesh units 11 jointly form the core force receiving surface P1, and the second end surfaces 24 of the plurality of elastic mesh units 11 are flush and jointly form the core connection surface P2. Wherein, the force-receiving surface P1 of the core body can be flat, or it can be designed to have a set curve according to ergonomics. Since the elastic grid unit 11 is a hollow structure and surrounded by elastic walls 12, each elastic grid unit 11 has relatively good tensile strength, and the ultimate elongation distance can reach more than 7 times the original length; two adjacent ones The elastic grid unit 11 only forms a line connection or a surface connection at the axis of symmetry, so that the elastic matrix 10 as a whole allows a larger amount of deformation under the action of external force, and is not prone to irreversible deformation; and, under the action of uneven external force , The interaction force between two adjacent elastic grid units 11 is at a relatively low level, and an independent support form can be maintained roughly. Each elastic grid unit 11 can be used as an independent bearing capacity unit. In this way, when a certain When an area sinks greatly under the action of external force, the adjacent elastic grid unit 11 will not collapse obviously, and the adjacent area can still provide sufficient supporting force. Figure 5 is a schematic diagram of the relationship between pressure and core height change, where Y1 represents the existing solid core, Y2 represents the core provided in this embodiment; the vertical axis represents the pressure, and the horizontal axis represents the core height The amount of change. It can be seen that in the existing solid core, as the pressure increases, the amount of change in the height of the core increases, and the relationship between the two is close to a linear relationship; while in the core provided by this embodiment, as the pressure increases , The core height change gradually enters the platform interval. In this platform interval, the core body can continue to sag, but the sag depth will not change sharply. While maintaining sufficient supporting force, it will not produce excessive reaction force, and the external force can be The plurality of elastic grid units 11 are evenly dispersed. For example, the curve of the buttocks in the human body is protruding. When the change in the height of the core body enters the platform area, the core body in contact with the buttocks can continue to sag to meet the curve of the human body, and at the same time, excessive reaction force will not be generated to cause physical discomfort.

The core connecting surface P2 composed of the second end surfaces of the plurality of elastic mesh units 11 is mainly used for connecting with other auxiliary materials. The core connecting surface P2 can be connected with other materials by means of adhesives, adhesive layers, etc., or connected with other materials by means of physical connections such as stitching and riveting.

In order to improve the structural strength of the elastic matrix, especially the elastic grid unit 11, an auxiliary matrix 21 is preferably designed. The auxiliary base 21 has a flat and complete surface, which is connected to the core connection surface P2.

In this embodiment, the elastic wall 12 is preferably made of thermoplastic elastomer material to achieve a balance between plasticity, softness and support performance, so that the core body is more comfortable to use. Those skilled in the art can understand without any doubt that the elastic wall 12 may also be made of other polymer materials with certain elasticity. Multiple elastomer units can be integrally formed by a thermoplastic process, or can also be integrally formed by means of 3D printing. Since the thermoplastic elastomer material cannot be directly bonded with the partial melt adhesive or the water-soluble adhesive, the auxiliary matrix 21 specially designed to fit the thermoplastic elastomer material is made of knitted fiber, woven fiber or non-woven fabric. During processing, the elastic base body made of thermoplastic elastomer material and the auxiliary base body 21 adapted to it can be connected by hot blanching or integral injection molding process.

The elastic base body with the auxiliary base body 21 produced by the hot blanching or integrated injection molding process can be divided into a plurality of standard-sized unit modules. It is also possible to produce standard size unit modules through hot blanching or integral injection molding, and to achieve the required size by splicing. The length and width dimensions of the elastic matrix are not further limited here.

The application of the core to a mattress product is taken as an example for further introduction. When applied to a mattress product, the core stress surface of the elastic core and the core connecting surface P2 are preferably designed to be flush. The optional structure of the optional elastic grid unit 11 is introduced with reference to FIGS. 6 to 14. The elastic mesh unit 11 includes a hollow area 14 formed inside the elastic wall 12. The area of each hollow area 14 falls within the range of 1㎝²～16㎝². If the area of the hollow area 14 is too large, the bearing capacity will be lost. If the area of the hollow area 14 is too small, the elastic wall 12 will have no bending space. When subjected to external forces, stacking may occur and the effect of elastic support may be lost. On the whole, the total area of the plurality of hollow regions 14 is 70% to 90% of the area of the elastic matrix, achieving a high level of open porosity, and the entire core has excellent air permeability.

The wall thickness of the elastic wall 12 is 1 mm～10mm. If the wall thickness is too small, the elastic wall 12 will lack supporting force. Too much wall thickness will reduce the elasticity of the elastic wall 12. At the same time, the wall thickness of the elastic wall 12 in this range can satisfy Processing requirements. The height of the elastic wall 12 is 1 cm to 15 cm, which is too low to provide sufficient depth of depression. Especially when it is applied to a mattress, the height of the elastic wall 12 is within this range, which can fully distribute the weight of the human body. From the perspective of weight, the weight of the entire mattress can also be controlled at a lower level.

As shown in Figs. 6 and 7, the cross-section of the elastic grid unit 11 may be designed as a regular hexagon (as shown in Fig. 16), and the whole is distributed in a crystal shape. As shown in Figures 8 and 9, the cross section of the elastic mesh unit 11 can be designed as a triangle (as shown in Figure 17). Particularly need to be introduced, as shown in Figures 10 and 11, the elastic grid units 11 designed as triangles can also be arranged in rows (as shown in Figure 18), so that the multiple columns of elastic grid units 11 can be further combined. , In order to achieve better strength in the length direction, to meet the specific needs of different mattress products. As shown in Figures 12 to 14, the cross-section of the elastic grid unit 11 can also be designed to be circular (as shown in Figure 19), and the edge of the elastic base can be provided with a protective wall as shown in Figure 13, or as shown in Figure As shown in 12, no protective wall is provided on the edge of the elastic substrate. In addition, the cross-section of the elastic mesh unit 11 can also be designed as an ellipse or a regular polygon with other shapes.

In many application scenarios, the elastic matrix needs to further improve the support strength. As shown in FIGS. 15 to 17, specifically, a support base 30 is also provided in the core body. The support base 30 is supported by sponge, latex, spinneret fiber, hose or spring. One support base 30 can be provided. The support base 30 can be connected to the core connection surface P2. The connection between the support base and the core connection surface P2 can be physically connected by bonding, stitching or riveting; the support base can also be connected to the auxiliary The base 21 is connected as shown in FIG. 16. According to the different strength requirements of the product, multiple support bases can be designed (as shown in 30-1 and 30-2 in Figure 17), and multiple support bases are stacked, and the uppermost support base 30-1 and auxiliary base 21 Connected. The connection between the support base 30-1 and the auxiliary base 21 may also be a physical connection method such as bonding, stitching or riveting.

In addition, multiple elastic bases can be arranged in one core, and the multiple elastic bases are evenly distributed. The plurality of elastic bases are connected by a first supporting base, and the first supporting base is arranged around the elastic base. The surface of the first support base is flush with the core connecting surface P2. The first support base and the elastic base in the connected state may be connected to the auxiliary base 21 or may be connected to the second support base. The connection can also adopt physical connection methods such as bonding, stitching or riveting. Both the first support base and the second support base can be composed of sponge, latex, spinneret fiber, hose or spring.

Another aspect of the present invention provides a soft furniture. The soft furniture core is arranged in the soft furniture. For the specific structure of the upholstered furniture core, please refer to the detailed description of the above-mentioned embodiments and the accompanying drawings of the specification, which will not be repeated here. The upholstered furniture provided with the above-mentioned upholstered furniture core can achieve the same technical effect. The upholstered furniture is preferably a mattress.

The above embodiments are only used to illustrate the technical solutions of the present utility model, but not to limit it; although the present utility model is described in detail with reference to the foregoing embodiments, for those of ordinary skill in the art, the foregoing implementation can still be carried out. The technical solutions recorded in the examples are modified, or some of the technical features are equivalently replaced; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions claimed by the present utility model.

To

Claims

A core body of upholstered furniture, which is characterized by:

include:

An elastic base, wherein a plurality of elastic grid units are formed in the elastic base;

Wherein, each of the elastic grid units is surrounded by elastic walls, any two adjacent elastic grid units are symmetrically arranged, and the elastic walls enclosing the two adjacent elastic grid units are connected to each other on the axis of symmetry.
The core of upholstered furniture according to claim 1, wherein:

Each of the elastic mesh units has a first end surface and a second end surface respectively formed at both ends of the elastic wall, wherein the first end surfaces of a plurality of the elastic mesh units together form the core of the elastic matrix The second end surfaces of the plurality of elastic grid units are flush and jointly form the core connecting surface of the elastic base.
The core of upholstered furniture according to claim 2, characterized in that:

Also includes:

Auxiliary base, the auxiliary base is connected to the core connecting surface;

Wherein, the elastic wall is made of thermoplastic elastomer material, and the auxiliary base is made of knitted fiber, woven fiber or non-woven fabric; the elastic base and the auxiliary base are connected by hot blanching or integral injection molding.
The core of upholstered furniture according to claim 3, characterized in that:

Also includes:

At least one supporting base is connected with the auxiliary base, and the supporting base is made of sponge, latex, spinneret fiber, hose or spring.
The core of upholstered furniture according to claim 4, characterized in that:

It includes a plurality of support bases, and the plurality of support bases are stacked and the support base at the uppermost layer is connected to the auxiliary base.
The core of upholstered furniture according to claim 2, characterized in that:

Also includes:

At least one supporting base is connected with the connecting surface of the core; the supporting base is made of sponge, latex, spinneret fiber, hose or spring.
The core of upholstered furniture according to claim 2, characterized in that:

The core includes a plurality of elastic bases, and the plurality of elastic bases are evenly distributed;

Also includes:

A first support base, the first support base is arranged around the elastic base, and the surface of the first support base is flush with the connecting surface of the core; and

At least one second supporting base, the second supporting base being respectively connected to the core connecting surface and the first supporting base surface;

The first support base is made of sponge, latex, spinneret fiber, hose or spring; the second support base is made of sponge, latex, spinneret fiber, hose or spring.
The core of upholstered furniture according to any one of claims 1 to 7, characterized in that:

The elastic grid unit further includes:

A hollow area, the hollow area is formed inside the elastic wall;

Wherein, the area of each of the hollow regions is 1 ㎝² to 16 ㎝², and the total area of the plurality of hollow regions is 70% to 90% of the area of the elastic matrix;

The wall thickness of the elastic wall is 1 mm to 10 mm, the height of the elastic wall is 1 cm to 15 cm, and the cross section of the elastic grid unit is rectangular, circular, elliptical, triangular or regular polygon.
An upholstered furniture, characterized by comprising the upholstered furniture core according to any one of claims 1 to 8.
The upholstered furniture according to claim 9, wherein the upholstered furniture is a mattress.