KR20210002769U - Soft Furniture Core and Soft Furniture - Google Patents

Abstract

The present invention discloses a soft furniture core, wherein the soft furniture core includes an elastic substrate, wherein a plurality of elastic grid units are formed on the elastic substrate; Here, each elastic grating unit is surrounded by an elastic wall, any two adjacent elastic grid units are symmetrically installed, and the elastic walls surrounding the two adjacent elastic grid units are connected to each other on the axis of symmetry. At the same time, it also provides soft furniture. The present invention uses a specially designed elastic lattice unit surrounded by an elastic wall, and an arrangement and connection method of a specially designed elastic grid unit, so that the elastic substrate has a certain degree of flexibility and can also play a good supporting role, so that comfort, support and a balance between structural strength can be reached; When a specific area is greatly sagged under the action of an external force, the adjacent elastic lattice unit can provide sufficient support while roughly maintaining the independent support shape.

Description

Soft Furniture Core and Soft Furniture

The present invention relates to the field of soft furniture technology, in particular soft furniture cores and soft furniture using cores.

Traditional soft furniture refers to furniture mainly made of sponges and fabrics. It is broadly divided into beds and sofas. The most common products in bedding are bed mattresses and pillows, and the most common products in sofas are seat cushions, back cushions, and armrests.

Traditional soft furniture generally uses springs and soft liners, sponges or natural palm fibers as the main materials, and is formed by adhesives or other joining methods. Sponges, natural palm fiber and latex are the most commonly used core materials in soft furniture, especially as people's comfort requirements continue to improve. Cores made of these materials have very low open porosity and can be considered solid. The solid core has the following disadvantages: First, the area attached to the human body surface when in use is very large, and the sponge, natural palm fiber and latex materials have very good absorption and heat retention, so that the air temperature between the human body surface and the solid core Humidity is high and air does not circulate smoothly, which reduces the comfort of the human body. Second, because the curvature of the human body curve is complex and individual differences are large, the external force on the convex portion acting on the solid core surface is larger than the external force on the other regions acting on the solid core surface, so that the unbalanced force applied to the corresponding region of the solid core surface is clearly defined. Because the solid core is entirely continuous and flat, a non-pressure-type deflection occurs in the surrounding area, making the surrounding area unable to act as a support.

The above-described information published in the background art is only for helping the understanding of the background art of the present application, and thus may include things that do not constitute the prior art known to those skilled in the art.

The present invention is a problem that exists in the solid core used in the existing soft furniture, that is, the contact area with the human body surface is large, the comfort of the human body is low, and sagging is easy to occur. It provides a soft furniture core for the problem that the surrounding area cannot act as a support.

In order to achieve the object of the above design, the present invention is achieved by adopting the following technical measures.

A first aspect of the present invention provides a soft furniture core, wherein the soft furniture core includes an elastic substrate, wherein a plurality of elastic grid units are formed on the elastic substrate; Here, each elastic grating unit is surrounded by an elastic wall, any two adjacent elastic grid units are symmetrically installed, and the elastic walls surrounding the two adjacent elastic grid units are connected to each other on the axis of symmetry.

Additionally, each of the elastic grating units has a first end surface and a second end surface formed at both ends of the elastic wall, wherein the first end surfaces of the plurality of elastic grating units jointly form a core load bearing surface of the elastic substrate and second end surfaces of the plurality of elastic grating units are flat and jointly form a core connecting surface of the elastic substrate.

For a balance between structural strength, softness and plasticity, the soft furniture core further includes an auxiliary substrate, the auxiliary substrate being connected to the core connecting surface, wherein the elastic wall is made of a thermoplastic elastomer material, and the auxiliary substrate is connected to the core connecting surface. The 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 an integrated injection molding process.

To meet different strength requirements, it further comprises at least one supporting substrate, the supporting substrate being connected to the auxiliary substrate, the supporting substrate being made of sponge, latex, spun fiber, hose or spring.

Additionally, a plurality of support substrates may be installed, and the plurality of support substrates are stacked and the support substrate positioned on the uppermost layer is connected to the auxiliary substrate.

The support substrate may be directly connected to the core connecting surface; The support substrate is made of sponge, latex, spun fiber, hose or spring.

One core can contain a plurality of elastic substrates to meet different size requirements, and the plurality of elastic substrates are evenly distributed; a first support substrate and at least one second support substrate; the first supporting substrate is installed to surround the elastic substrate, and a surface of the first supporting substrate is flat with the core connecting surface; the second supporting substrates are respectively connected to the core connecting surface and the first supporting substrate surface; the first supporting substrate is made of sponge, latex, spun fiber, hose or spring; The second supporting substrate is made of sponge, latex, spun fiber, hose or spring.

Preferably, the elastic grating unit further includes a hollow region, the hollow region being formed inside the elastic wall; wherein, the area of each of the hollow regions is 1 cm² to 16 cm², and the total area of the plurality of hollow regions is 70% to 90% of the area of the elastic substrate; The 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 a rectangle, a circle, an ellipse, a triangle, or a regular polygon.

Another aspect of the present invention provides soft furniture using a soft furniture core, wherein the soft furniture core includes an elastic substrate, wherein a plurality of elastic grid units are formed on the elastic substrate; Here, each elastic grating unit is surrounded by an elastic wall, any two adjacent elastic grid units are symmetrically installed, and the elastic walls surrounding the two adjacent elastic grid units are connected to each other on the axis of symmetry.

Preferably, the soft furniture is a bed mattress.

Compared with the prior art, the advantages and positive effects of the present invention are as follows:

The soft furniture core provided by the present invention and the soft furniture using such a soft furniture core have an elastic substrate with a certain degree of flexibility by using a specially designed elastic lattice unit surrounded by an elastic wall and an arrangement and connection method of a specially designed elastic grid unit. and can also play a good supporting role, so that a balance between comfort, support and structural strength can be reached; When a specific area is greatly sagged under the action of an external force, the adjacent elastic lattice unit can provide sufficient support while roughly maintaining the independent support shape.

In order to more clearly describe the technical solutions in the embodiments of the present invention, drawings used in the embodiments are briefly introduced below. Obviously, the drawings in the following description are some embodiments of the present invention, and a person skilled in the art can obtain other drawings based on these drawings without creative work.
1 is a schematic diagram of an elastic substrate structure in a specific embodiment of a soft furniture core provided by the present invention;
FIG. 2 is a partially enlarged schematic view of A of FIG. 1 .
Fig. 3 is a schematic view of the state of the elastic grating unit in a state where the load-bearing surface of the core of Fig. 1 is subjected to a force;
Fig. 4 is another schematic view of the state of the elastic grating unit in a state where the load-bearing surface of the core of Fig. 1 is subjected to a force;
5 is a comparison diagram of the force-deflection curve of the core of the soft furniture provided by the prior art and the present invention.
6 is a schematic structural diagram of an optional structure of an elastic grating unit;
FIG. 7 is a plan view of FIG. 6 showing the arrangement relationship of the elastic grating units.
8 is a schematic structural diagram of another optional structure of the elastic grating unit.
9 is a plan view of FIG. 8 and shows the arrangement relationship of the elastic grating units.
10 is a schematic structural diagram of another optional structure of the elastic grating unit.
11 is a plan view of FIG. 10 , illustrating an arrangement relationship of elastic grating units.
12 is a schematic structural diagram of another optional structure of the elastic grating unit.
13 is a schematic structural diagram of another optional structure of the elastic grating unit.
Fig. 14 shows the arrangement relationship of the elastic grating units of Figs. 12 and 13;
15 is a schematic structural diagram of a specific embodiment of a core of soft furniture.
16 is a side view of a specific embodiment of a core of soft furniture;
17 is a side view of another specific embodiment of a soft furniture core;
When reading specific embodiments of the present invention with reference to the accompanying drawings, other features and advantages of the present invention will become clearer.

In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be described in more detail with reference to the accompanying drawings and examples as follows.

In the description of the present invention, the term "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. of a direction or positional relationship is the direction or position indicated in the drawing. relationship, which is for convenience of description, and does not indicate or imply that a device or element must have a particular orientation, particular orientation, structure, and operation, and should not be construed as limiting the present invention. Also, the terms “first” and “second” are used for descriptive purposes only and should not be construed as indicating or implying a relative importance.

The present invention solves the problems existing in the solid core used in the existing soft furniture, that is, the contact area with the human body surface is large, the comfort of the human body is low, and sag is easy to occur. Design a new soft furniture core for the problem that the surrounding area cannot provide support. A soft furniture core 1 of this kind can be used as a bed product, for example a bed mattress or as part of a bed mattress, or as a pillow or part of a pillow; It can also be used in sofas or seat products, for example, used as a seat cushion or a part of a seat cushion, used as a back cushion or a part of a back cushion, or used as an armrest or a part of an armrest. 1 to 4 , the soft furniture core 1 includes an elastic substrate 10 , and a plurality of elastic grid units 11 are formed on the elastic substrate 10 . Each elastic grating unit 11 is surrounded by an elastic wall 12 . Between two adjacent elastic lattice units 11 have a common edge to form a line connection, or have a common sidewall to form a planar connection. Specifically, any two adjacent elastic grating units 11 are symmetrically installed, and the elastic walls 12 surrounding the two adjacent elastic grating units 11 are connected to each other on the axis of symmetry. That is, the cavity edge or cavity sidewall is located on the axis of symmetry. As shown in the examples shown in FIGS. 2 and 3 , there is a cavity sidewall between the adjacent elastic grating unit 11-1 and the elastic grating unit 11-2, and the cavity sidewall is on the symmetry axis 15-1. to form a surface connection between the two elastic lattice units 11; There is a cavity edge between the adjacent elastic grating unit 11-1 and the elastic grating unit 11, and the cavity edge is located on the symmetry axis 15-2. The arrangement and connection method of such an elastic grid unit 11 allows the elastic substrate 10 to have a certain degree of flexibility, to serve as a good support, and to have good use comfort.

More specifically, as shown in FIGS. 1 to 4 , each elastic grating unit 11 has a first end face 13 and a second end face 24 formed at both ends of the elastic wall 12 . Here, the first end face 13 of the plurality of elastic grid units 11 jointly forms the core load bearing surface P1, and the second end surface 24 of the plurality of elastic grid units 11 is flat and A core connecting surface P2 is formed jointly. Here, the load bearing surface P1 of the core may be flat or designed to have a constant curve according to an ergonomic design. For example, when the core is used as a back cushion, a portion corresponding to the waist may be designed to protrude. Since the elastic lattice unit 11 is a hollow structure and is surrounded by an elastic wall 12, each elastic lattice unit 11 has a relatively good tensile strength, and the maximum stretching distance can reach 7 times or more of the original length; The two adjacent elastic grating units 11 form only a line connection or a surface connection on the axis of symmetry, so that the elastic substrate 10 as a whole allows a larger amount of deformation under the action of an external force, so that irreversible deformation does not easily occur; In addition, under the action of a non-uniform external force, the interaction force between the two adjacent elastic lattice units 11 is relatively low, so that the independent support shape can be roughly maintained, and each elastic lattice unit 11 is an independent support force unit. can be used as In this way, even when a specific area is greatly deflected due to the action of an external force, the adjacent elastic lattice unit 11 does not largely collapse, and the adjacent area can still provide sufficient support force. Fig. 5 schematically shows the relationship between the pressure and the amount of change in the core height, where Y1 denotes an existing solid core, and Y2 denotes a core provided in this embodiment; The vertical axis represents pressure, and the horizontal axis represents the amount of change in core height. It can be seen that in the existing solid core, the change in the core height increases as the pressure increases, and the relationship between the two is close to a linear relationship; In the core provided by this embodiment, as the pressure increases, the height of the core gradually enters the platform section, and in this platform section, the core can continue to sag down, but the depth of deflection does not change abruptly and maintains sufficient bearing capacity While excessive reaction force does not occur, the external force can be evenly distributed by the plurality of elastic grid units (11). For example, the curve of the buttocks in the human body is protruding. When the amount of change in the height of the core enters the platform section, the core in contact with the buttocks continuously sags slightly to satisfy the curve of the human body, and at the same time, excessive reaction force occurs, causing discomfort to the body. does not cause

The core connecting surface P2 composed of a second flat cross-section of the plurality of elastic grating units 11 is mainly used for connection with other auxiliary materials. The core connecting surface P2 may be connected to another material through an adhesive, an adhesive layer, or the like, or may be connected to another material through a physical connection such as stitching and riveting.

In order to improve the structural strength of the elastic substrate, in particular, the elastic grating unit 11, it is preferable to also design the auxiliary substrate 21. The auxiliary substrate 21 has a flat and complete surface, and is connected to the core connecting surface P2.

In this embodiment, the elastic wall 12 is preferably made of a thermoplastic elastomer material to achieve a balance between plasticity, softness and support performance, so that the use of the core is more comfortable. Those skilled in the art will undoubtedly understand that the resilient wall 12 may also be made of other polymeric materials having a certain elasticity. Several elastomeric units may be integrally formed by a thermoplastic process or may be integrally formed by 3D printing. Since the thermoplastic elastomer material cannot directly adhere to the partially molten adhesive or water-soluble adhesive, the auxiliary substrate 21 specially designed to fit the thermoplastic elastomer material is made of knitted fibers, woven fibers or non-woven fabrics. During processing, the elastic substrate made of the thermoplastic elastomer material and the auxiliary substrate 21 suitable therefor can be connected by hot blanching or an integral injection molding process.

The elastic substrate provided with the auxiliary substrate 21 manufactured by hot blanching or integral injection molding process may be divided into unit modules of several standard sizes. It is also possible to produce a unit module of standard size through hot blanching or integral injection molding, and also to achieve a desired use size by bonding, and the length and width dimensions of the elastic substrate are no longer limited here.

Taking the case of applying the core to a bed mattress product as an example, further introduction proceeds. When applied to a bed mattress product, the core load bearing surface and the core connection surface P2 of the elastic core are preferably designed to be flat. An optional structure of the optional elastic grating unit 11 is introduced with reference to FIGS. 6 to 14 . The elastic grating unit 11 includes a hollow region 14 , the hollow region 14 being formed inside the elastic wall 12 . The area of each hollow region 14 is in the range of 1 cm² to 16 cm², and if the area of the hollow region 14 is too large, the bearing capacity is easily lost, and if the hollow region 14 is too small, the elastic wall ( 12) does not have a bending space, so when an external force is applied, lamination occurs, and the effect of elastic support may be lost. Overall, the total area of the plurality of hollow regions 14 is 70% to 90% of the area of the elastic substrate, achieving a high level of open porosity, and the entire core has good air permeability.

The thickness of the elastic wall 12 is 1 mm to 10 mm. If the wall thickness is too thin, the supporting force of the elastic wall 12 is insufficient, and if the thickness is too large, the elasticity of the elastic wall 12 is reduced, and at the same time, the elastic wall 12 ) can satisfy the processing requirements in this section. The height of the elastic wall 12 is 1 cm to 15 cm, and if the height is too low, a sufficient depth of deflection cannot be provided. In particular, when used in a bed mattress, if the height of the elastic wall 12 is within this section, the weight of the human body can be sufficiently distributed. In terms of weight, the weight of the entire bed mattress can also be controlled at a low level.

6 and 7, the cross-section of the elastic lattice unit 11 may be designed as a regular hexagon (16 in FIG. 16), and the whole is distributed in the form of crystals. 8 and 9, the cross section of the elastic grating unit 11 may be designed as a triangle (17 in FIG.). In particular, as shown in FIGS. 10 and 11 , the elastic grating units 11 designed in a triangle are also arranged in rows (18 in FIG. 18 ), so that several rows of elastic grating units 11 are additionally merged, so that more in the longitudinal direction By achieving better strength, it can meet the specific requirements of various bed mattress products. 12 to 14, the cross section of the elastic grid unit 11 may be designed in a circular shape (19 in FIG. 19), and a protective wall may be installed at the edge of the elastic substrate as shown in FIG. 13, As shown in FIG. 12 , a protective wall may not be provided at the edge of the elastic substrate. In addition, the cross section of the elastic lattice unit 11 may be designed as a regular polygon having an ellipse or other shape.

In many application scenarios, resilient substrates need to further enhance their support strength. Specifically, as shown in FIGS. 15 to 17 , the core is also provided with a supporting substrate 30 . The support substrate 30 is supported by a sponge, latex, spun fiber, hose or spring. One support substrate 30 may be installed, the support substrate 30 may be connected to the core connection surface P2, and the connection between the support substrate and the core connection surface P2 may be performed by bonding, stitching or riveting. may adopt the same physical connection method; The support substrate may also be connected to the auxiliary substrate 21 as shown in FIG. 16 . A number of supporting substrates can be designed according to the different strength requirements of the product (see 30-1 and 30-2 in Fig. 17), and a number of supporting substrates are stacked and the supporting substrate 30-1 located on the top layer is an auxiliary connected to the substrate 21 . A physical connection method such as bonding, stitching, or riveting may also be used for connection between the support substrate 30 - 1 and the auxiliary substrate 21 .

In addition, a plurality of elastic substrates can be installed in one core, and the plurality of elastic substrates are evenly distributed. A plurality of elastic substrates are connected by a first support substrate, and the first support substrate is installed to surround the elastic substrate. The surface of the first supporting substrate is flat with the core connecting surface P2. The first supporting substrate and the elastic substrate in the connected state may be connected to the auxiliary substrate 21 or may be connected to the second supporting substrate. The connection may also adopt a physical connection method such as bonding, stitching or riveting. Both the first supporting substrate and the second supporting substrate may be composed of sponge, latex, textile fibers, hoses or springs.

Another aspect of the present invention provides soft furniture. Soft furniture cores are installed. For the specific structure of the soft furniture core, refer to the detailed description of the above-described embodiment and the accompanying drawings of the specification, and thus, it will not be repeated here. The soft furniture provided with the above-mentioned soft furniture core can achieve the same technical effect, and the soft furniture is preferably a bed mattress.

The above embodiment is only used to explain the technical solution of the present invention, and is not limited thereto; Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, the technical solutions described in the foregoing embodiments may still be modified, or some of the technical features may be equally substituted; Such modification or replacement does not deviate from the spirit and scope of the technical solution for which the present invention requires protection in the essence of the technical solution.

1: soft furniture core, 10: elastic substrate, 11: elastic lattice unit, 12: elastic wall, 13: first cross section, 14: hollow region, 15-1: axis of symmetry, 15-2: axis of symmetry, 21: auxiliary substrate; 24: second end face, 30: support substrate.

Claims (10)

an elastic substrate, wherein a plurality of elastic grid units are formed on the elastic substrate; Here, each elastic grating unit is surrounded by an elastic wall, any two adjacent elastic grid units are symmetrically installed, and the elastic walls surrounding the two adjacent elastic grid units are connected to each other on an axis of symmetry. , which is a soft furniture core. The method according to claim 1, wherein each of the elastic grating units has a first end and a second end formed at both ends of the elastic wall, wherein the first end faces of the plurality of elastic grating units jointly support the core load of the elastic substrate A soft furniture core, characterized in that the second end surfaces of the plurality of elastic grating units are flat and jointly form the core connecting surface of the elastic substrate. The method according to claim 2, further comprising an auxiliary substrate, wherein the auxiliary substrate is connected to the core connecting surface, wherein the elastic wall is made of a thermoplastic elastomer material, and the auxiliary substrate is made of knitted fiber, woven fiber or non-woven fabric. lose; The soft furniture core, characterized in that the elastic substrate and the auxiliary substrate are connected by hot blanching or integral injection molding process. 4. Soft furniture according to claim 3, further comprising at least one supporting substrate, said supporting substrate being connected to said auxiliary substrate, said supporting substrate being made of sponge, latex, spun fiber, hose or spring. core. The soft furniture core according to claim 4, comprising a plurality of supporting substrates, wherein the plurality of supporting substrates are stacked and the supporting substrate located on the uppermost layer is connected to the auxiliary substrate. The method according to claim 2, comprising at least one support substrate, the support substrate being connected to the core connecting surface; The soft furniture core, characterized in that the supporting substrate is made of sponge, latex, spun fiber, hose or spring. The method according to claim 2, wherein the core comprises a plurality of elastic substrates, the plurality of elastic substrates are evenly distributed; a first support substrate and at least one second support substrate; the first supporting substrate is installed to surround the elastic substrate, and a surface of the first supporting substrate is flat with the core connecting surface; the second supporting substrates are respectively connected to the core connecting surface and the first supporting substrate surface; the first supporting substrate is made of sponge, latex, spun fiber, hose or spring; The soft furniture core, characterized in that the second supporting substrate is made of sponge, latex, spun fiber, hose or spring. The method according to any one of claims 1 to 7, wherein the elastic grating unit further comprises a hollow region, the hollow region is formed in the interior of the elastic wall; wherein, the area of each of the hollow regions is 1 cm² to 16 cm², and the total area of the plurality of hollow regions is 70% to 90% of the area of the elastic substrate; The soft furniture core, characterized in that the 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, oval, triangular or regular polygon. Soft furniture, characterized in that it comprises the soft furniture core according to any one of the preceding claims. The soft furniture according to claim 9, wherein the soft furniture is a bed mattress.

Images