Multi-partition composite bed core and mattress using same

Abstract

The utility model relates to the field of mattresses, in particular to a multi-partition composite bed core and a mattress using the same. In order to solve the problems that an existing multi-partition spring bed core is complex in spring structure, troublesome to manufacture, high in cost, prone to deformation after being used for a long time and the like, the utility model provides the multi-partition composite bed core and the mattress using the multi-partition composite bed core. The elastic supporting structure is composed of spring supporting areas and elastic material supporting areas which are alternately arranged in the length direction of the bed core, each spring supporting area is composed of a plurality of spring modules, the adjacent areas on the front side and the rear side of each spring supporting area are the elastic material supporting areas, and the spring supporting areas and the elastic material supporting areas are all arranged on an elastic cushion layer. According to the multi-partition composite bed core, the springs and the elastic materials are alternately distributed to form a multi-partition elastic support, and compared with an existing partition bed core supported by all the springs, the multi-partition composite bed core is simplified in structure, low in manufacturing difficulty and cost, stable in structure and free of deformation after being used for a long time.

Description

Technical Field

[0001] The utility model relates to the field of mattresses, in particular to a multi-zone composite bed core and a mattress using the same. Background Art

[0002] Traditional spring mattresses all use spring cores with homogeneous springs as internal support. The spring cores provide the same support to different parts of the human body and cannot meet the differentiated elastic support requirements of different parts of the body. Later, multi-partition spring cores were developed. The spring cores in each partition can provide different soft and hard supports. Moreover, the spring cores use a modular structure. Multiple small springs are first combined into a larger spring module, and then multiple spring modules are combined into a spring core in a specific arrangement. The entire core is continuously arranged with springs along the length. The structure of the core is complex, the manufacturing difficulty and cost are high, and the yield rate is low. There is a lack of reliable connection and positioning between the spring modules in adjacent partitions on the spring core. After long-term use, the spring modules are prone to loosening or even offset, which leads to deformation of the core and affects the normal use of the mattress. Furthermore, the spring module composed of multiple small springs has poor air permeability, which reduces the heat dissipation effect of the core and affects the comfort of the mattress. Utility Model Content

[0003] In order to solve the technical problems of the existing multi-partition spring bed cores connected by spring modules, such as complex spring structure, difficult manufacturing and high cost, and easy deformation after long-term use, the utility model provides a multi-partition composite bed core and a mattress using the same. The composite bed core uses springs and elastic materials alternately arranged to provide elastic support for the partitions. Compared with the existing multi-partition spring bed cores supported entirely by springs, the structure is simplified, the manufacturing difficulty and cost are significantly reduced, and it is possible to improve the yield rate. The bed core structure is stable and will not deform after long-term use.

[0004] The utility model adopts the technical solution to solve the technical problem: a multi-partitioned composite bed core, the bed core has an elastic support structure partitioned along its length direction, and is characterized in that the elastic support structure is composed of spring support areas and elastic material support areas alternately arranged along the length direction of the bed core, the spring support area is composed of a plurality of spring modules, and the partitions adjacent to the spring support area on both sides are elastic material support areas, and the spring support area and the elastic material support area are both arranged on an elastic cushion layer. The utility model distributes the spring support area and the elastic material support area alternately along the length direction of the bed core to form the main support structure of the bed core. Compared with the original bed core structure with continuously distributed spring supports, the structure is simplified, the manufacturing difficulty is reduced, and it is possible to improve the manufacturing yield of the bed core; the elastic material support area can be made of various elastic materials of the existing technology such as sponge, latex, memory foam, etc., compared with using springs entirely, it can reduce the manufacturing cost of the bed core and effectively reduce the weight; the adjacent areas on the front and rear sides of the spring support area are both elastic material support areas, and the elastic material of the elastic material support area can clamp and limit the corresponding spring support area and the corresponding spring module front and back to prevent the part of the spring module from loosening and deviating, so as to avoid deformation of the bed core due to loosening and deviation of the spring module after long-term use; all the spring support areas and elastic material support areas are arranged on the same elastic cushion layer.

[0005] As a further improvement and supplement to the above technical solution, the utility model adopts the following technical measures: the elastic support structure is divided into seven partitions along the length direction of the bed core, and the seven partitions are composed of three spring support areas and four elastic material support areas arranged alternately, and both ends of the length direction of the bed core are elastic material support areas. The seven partitions of the bed core are composed of two different support areas arranged alternately, and both ends of the head and tail of the bed core are elastic material support areas. The seven partitions of the bed core are centered with a spring support area, and elastic material support areas and spring support areas are arranged alternately on both sides to form a front-to-back symmetrical regional support. When in use, whether the head is facing forward or backward, the user can find a suitable area to support the head, shoulders, waist, hips and other body parts of the user to meet the support needs of lying on the bed.

[0006] The spring module is a pocket spring, and the spring support area is composed of a plurality of pocket springs arranged in two directions of perpendicular rows and columns and connected into an integrated structure, the row direction is parallel to the width direction of the bed core, and the column direction is parallel to the length direction of the bed core. The spring module of the spring support area uses independent pocket springs, which are breathable, and each spring support area has a plurality of independent pocket springs arranged regularly in two directions of perpendicular rows and columns, wherein the row direction and column direction are respectively parallel to the width direction and length direction of the bed core.

[0007] The three spring support areas are composed of a strong support area in the middle and weak support areas on both sides. The support hardness of the strong support area is greater than that of the weak support area. The pocket springs in the strong support area and the weak support area are the first pocket spring and the second pocket spring respectively. When in use, the strong support area is used to support the buttocks, and the other support areas support the head, shoulders, waist and other parts.

[0008] The first bagged spring and the second bagged spring are made of the same spring by packaging spring bags of different heights, and the spring bag height of the first bagged spring is less than the spring bag height of the second bagged spring; or the first bagged spring and the second bagged spring are the same, and the arrangement density of the first bagged spring is greater than the arrangement density of the second bagged spring. The two bagged springs are made of the same spring by packaging spring bags of different heights, and the spring bag height of the first bagged spring is less than the spring bag height of the second bagged spring. The same spring is packaged with a relatively shorter spring bag to increase the pre-compression of the spring, thereby increasing the elasticity of the spring and making it appear harder; or the two bagged springs use the same bagged spring, and change the regional support hardness through different arrangement densities. Whether the same spring is packaged with different spring bags to make bagged springs, or the same bagged spring is used, it helps to simplify the manufacturing process and reduce manufacturing costs.

[0009] The first pocket spring and the second pocket spring are made of different springs, and the spring pocket height and spring caliber of the first pocket spring are both larger than those of the second pocket spring. The first pocket spring and the second pocket spring are made of different springs, and the spring caliber and spring pocket height of the former are both larger than those of the latter. When working, the large-caliber spring and the higher spring pocket can make the first pocket spring better adapt to the pressure-bearing requirements of the buttocks and have good resilience. The higher spring pocket is more suitable for the prominent contour of the waist and buttocks when sleeping on the side, avoiding the spring pocket height being too small when sleeping on the side and the spring being compressed to the bottom to produce a hard feeling and cause discomfort.

[0010] Each elastic material support area is made of the same elastic material, and the elastic material of each elastic material support area is fixed on the elastic cushion layer, and the spring module is arranged in a groove surrounded by two adjacent elastic material support areas and the elastic cushion layer. Each elastic material support area is made of the same elastic material, such as common latex, sponge, memory foam, etc., and is glued and fixed on the elastic cushion layer; the spring modules of each spring support area are also arranged and connected in the groove surrounded by the elastic material support areas and the elastic cushion layer on both sides.

[0011] The elastic cushion layer is made of an elastic material, and the elastic material support area is integrally formed with the elastic cushion layer. The elastic cushion layer is also made of the same elastic material as the elastic material support area, and all the elastic material support areas and the elastic cushion layer are integrally formed, which simplifies the manufacturing process. In addition, the elastic cushion layer can also be made of a material different from the elastic material, and the elastic material corresponding to the elastic material support area is glued and fixed on the elastic cushion layer.

[0012] The top surface of the elastic material is provided with a plurality of opening grooves extending along the width direction of the bed core, and the opening grooves are arranged in parallel along the length direction of the bed core, and at least one end of the opening grooves is open along the length direction, and the opening grooves can form a variable-sized opening between the elastic materials on both sides thereof. The function of the opening grooves is to provide deformation gaps and heat dissipation. When the bed core is under pressure during operation, the elastic materials on both sides of the opening grooves can stretch toward one side of the opening gap to achieve compression deformation, thereby improving the elasticity of the elastic material support area; at the same time, the opening grooves have an opening at least at one end in the length direction, which can introduce air circulation to improve the heat dissipation of the area, making people feel cooler and avoiding the stuffiness caused by heat accumulation affecting sleep.

[0013] The second purpose of the invention of the utility model is to provide a mattress, in which a bed core with multi-partition support is provided, the bed core is one of the multi-partition composite bed cores described above, and a flat cushion layer is fitted on the upper surface of the multi-partition composite bed core. The manufacturing difficulty and cost of the multi-partition composite bed core are reduced, the weight is reduced, and there is room for improvement in the yield rate, which is beneficial to the production and manufacturing of mattresses and cost reduction. The mattress with the aforementioned bed core will not deform after long-term use, and the user has a good sleeping experience; the flat cushion layer fitted on the bed core can further improve the surface flatness, making the mattress more comfortable to use.

[0014] One of the inventive purposes of the utility model is to change the full spring support inside the bed core into multiple spring support areas and elastic material support areas that are alternately distributed along the length direction, wherein the spring support area is composed of pocket springs as spring modules, and the elastic material support area is made of common materials such as sponge / latex / memory foam, which reduces the amount of spring modules while simplifying the bed core structure, reduces the difficulty and cost of bed core production, and also reduces the weight of the bed core, and is conducive to improving the qualified rate of the bed core; each spring support area is located between two elastic material support areas and is sandwiched by elastic materials on both sides, so that the spring module will not be offset, the bed core structure is stable, and it will not deform even after long-term use, ensuring comfort in use. In addition, the pocket springs and elastic materials have good air permeability. The second inventive purpose of the utility model is to provide a mattress with the above-mentioned bed core. Compared with the existing mattress with a full spring bed core, due to the composite structure of the bed core, the difficulty, cost and weight of the mattress manufacturing can be reduced, and the mattress structure is stable and does not deform. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 : Schematic diagram of the structure of Example 1.

[0016] Figure 2 : A side schematic diagram of Example 1.

[0017] Figure 3 : Figure 2 Enlarged view of part A.

[0018] Figure 4 : Schematic diagram of the bed core covered with a flat cushion layer in Example 1.

[0019] Figure 5 : The structural diagram of Example 2.

[0020] Figure 6 : A side view of Example 2.

[0021] In the figure: 1. spring support area, 1-1. strong support area, 1-2. weak support area, 2. elastic material support area, 3. groove, 4. open groove, 5. elastic material, 6. first pocket spring, 7. second pocket spring, 8. reinforcement closing structure, 9. flat cushion layer, 10. elastic cushion layer. DETAILED DESCRIPTION

[0022] The utility model is further described below in conjunction with the accompanying drawings and specific implementation methods.

[0023] like Figure 1-4 As shown, embodiment 1 is a multi-zone composite bed core, the bed core has an elastic support structure with seven zones along its length direction, the elastic support structure is composed of three spring support areas 1 and four elastic material support areas 2 alternately distributed along the length direction of the bed core, both ends of the length direction of the bed core are elastic material support areas 2, the spring support area 1 and the elastic material support area 2 are both arranged on an elastic cushion layer 10, and the top surfaces of the spring support areas and the spring support areas are flush; the spring support area 1 is composed of a plurality of spring modules arranged and connected in two directions of rows and columns that are perpendicular to each other, the spring modules use pocket springs, and the row direction and column direction are respectively parallel to the width and length direction of the bed core, as shown in FIG. Figure 1 As shown in the present embodiment, two adjacent rows of pocket springs are also aligned along the length direction of the bed core. All the pocket springs in each spring support area are connected by adjacent spring pockets to form an integrated structure. The adjacent partitions on the front and rear sides of each spring support area 1 are both elastic material support areas 2; the elastic material support area and the elastic cushion layer can be made of common materials such as sponge / latex / memory foam.

[0024] The multi-zone composite bed core described in this embodiment adopts spring support areas and elastic material support areas to form seven zones to support the body, which greatly reduces the amount of spring modules and simplifies the bed core structure, reduces the difficulty and cost of bed core production, and improves the qualified rate of bed core products. In addition, each spring support area is located between two elastic material support areas, and the spring module is sandwiched and will not shift. The bed core structure is stable and will not deform after long-term use, ensuring comfort. Figure 2 As shown from left to right, the seven partitions have area dimensions of 24.6cm, 33cm, 23.4cm, 33cm, 23.4cm, 33cm, and 24.6cm along the length of the bed core. The spring support area in the middle is symmetrically arranged on both sides. No matter the user lies with his head forward or backward, he can get comfortable support on the bed core. The middle spring support area supports the buttocks, and the pocket springs and sponges have good breathability.

[0025] Further Figure 1 As shown, among the three spring support areas 1, the middle one is the strong support area 1-1, and the other two are the weak support areas 1-2. The support hardness of the strong support area is greater than that of the weak support area. The pocket springs of the strong support area 1-1 and the weak support area 1-2 are the first pocket spring 6 and the second pocket spring 7 respectively. The two pocket springs are made of different springs. The spring pocket height and spring diameter of the first pocket spring 6 are greater than the spring pocket height and spring diameter of the second pocket spring 7. When working, the first pocket spring has a larger caliber spring and a higher spring pocket than the second pocket spring, so that the first pocket spring can better adapt to the pressure-bearing requirements of the buttocks and has good resilience. The high spring pocket adapts to the prominent contour of the waist and buttocks when sleeping on the side, preventing the spring pocket from being compressed to the bottom when sleeping on the side due to the small height, resulting in a hard feeling and causing discomfort. The calculation formula of the spring pressure is F=P×S, where F is the spring pressure, S is the spring compression, P is the spring stiffness, and the calculation of the spring stiffness P is shown as follows:

[0026]

[0027] In the above formula, d is the wire diameter, D is the spring middle diameter, n is the effective number of coils of the spring, n=N-2, N is the number of coils of the spring, and G is the rigid modulus constant related to the wire material. Changing the spring middle diameter, effective number of coils and wire diameter under the same material can adjust the spring stiffness. Using different materials under the same shape parameters can also adjust the spring stiffness. In use, the existing process and equipment and spring material selection can be combined to change the spring stiffness and spring pre-compression (i.e., spring bag height) so that the pocket spring can meet the support needs of different parts of the body.

[0028] In order to facilitate the manufacture of the bed core and further reduce the cost, in this embodiment, the four elastic material support areas 2 are all made of the same elastic material 5, and the elastic material 5 is preferably sponge. At the same time, the elastic cushion layer 10 is also made of sponge and is integrally formed with the four sponge elastic material support areas 2; the sponges of each two elastic material support areas and the sponge connecting sections at the butt joints form a groove 3 extending along the width direction of the bed core, and the spring modules of the three spring support areas are arranged in the corresponding grooves 3 formed by the two adjacent elastic material support areas 2 and the elastic cushion layer 10, such as Figure 2 The bed core shown in the figure has three aforementioned grooves 3 formed along the length direction as positioning parts for installing spring modules. The spring modules of the three spring support areas 1 are arranged in the corresponding three grooves. The three grooves correspondingly clamp and position the spring modules of the three spring support areas. When the bed core is assembled, the connected pocket springs and the sponges at the positions of the grooves fit tightly without obvious gaps. When the manufacturing material of the elastic cushion layer 10 is different from the elastic material 5, the elastic material support areas formed by the elastic material 5 can be fixed on the elastic cushion layer 10 by gluing or other existing technologies.

[0029] The springs in both types of pocket springs are waist drum shaped, with small diameters at the upper and lower ends and a large diameter in the middle waist. Figure 2 As shown, in order to match the height difference between the first spring pocket and the second spring pocket, the groove height corresponding to the pocket spring in the strong support area is 6 cm, the spring wire diameter of the corresponding first pocket spring is 18±0.2 mm, and the caliber is 57 / 67 / 57±1 mm. The three sizes of the aforementioned caliber correspond to the radial sizes of the upper, middle and lower sections of the waist drum-shaped spring. The spring pocket height is 6±1 cm, and the ratio of the spring's entry and exit heights to the bag exit heights is 6 / 12; the groove height corresponding to the pocket spring in the weak support area is 3 cm, the spring wire diameter of the corresponding second pocket spring is 18±0.2 mm, the caliber is 34 / 35 / 34±0.8 mm, the spring pocket height is 3±0.5 cm, and the ratio of the spring's entry and exit heights to the bag exit heights is 3 / 4. The bag exit heights of the two aforementioned pocket springs after being moved out of the spring pockets are not less than the heights of the corresponding spring pockets.

[0030] In order to further improve the air permeability of the elastic material support area, such as Figure 2 As shown, the top surface of the elastic material 5 where the four elastic material support areas 2 are located has four open grooves 4 distributed along the length direction of the bed core, each of which extends along the width direction of the bed core. The open grooves 4 are open at least at one end along the length direction, and the open grooves 4 can form a variable-sized opening between the elastic materials on both sides. When the bed core is under pressure during operation, the elastic materials on both sides of each open groove can stretch toward one side of the open gap to achieve compression deformation to increase elasticity. At the same time, air can flow in and out of the open ends of the open grooves to enhance heat dissipation, making people feel cooler and avoiding the stuffiness caused by heat accumulation that affects sleep quality. Figure 3As shown, the aforementioned variable-size opening gradually shrinks from the outside to the inside, and forms an opening end at the bottom of the opening groove 4. The side walls on both sides of the opening are convex arc surfaces. The end of the opening is also provided with a tear-proof reinforcing and closing structure 8. The reinforcing and closing structure adopts an arc groove formed by the inward expansion of the groove bottom of the opening groove. The arc groove is connected with the opening groove and extends through the sponge along the length direction of the opening groove. The reinforcing and closing structure is directly formed by the inward expansion of the bottom of the opening groove, without the need to add other external components. The cross-section of the arc groove is a smoothly transitioned arc shape, which is not easy to produce stress concentration. The opening will not be torn or damaged even if the opening is repeatedly opened and closed for a long time. The arc groove runs through the edge protection sponge body, and the entire opening end will not be torn.

[0031] Example 2 Figure 5 and Figure 6 As shown, it is also a multi-zone composite bed core, which also has seven zone supports. The seven zones are also alternately distributed by four elastic material support areas 2 and three spring support areas, and the seven zones are all arranged on the same elastic cushion layer 10. The top surfaces of the seven zones are flush, and the three spring support areas are divided into two weak support areas 1-2 and one strong support area 1-1. The elastic material support area 2 and the elastic cushion layer 10 are made of the same elastic material 5 and are integrally formed. The elastic material is preferably sponge. The top surface of the sponge where each elastic material support area 2 is located is also provided with four open grooves 4. The pocket springs in each spring support area are arranged in a groove surrounded by the sponges on both sides and the elastic cushion layer below. The difference from Example 1 is that the first pocket spring 6 and the second pocket spring 7 have different structures, and the pocket springs in the spring support area are arranged differently. In this embodiment, the first bagged spring 6 and the second bagged spring 7 are made of the same spring packaged in spring bags of different heights, wherein the spring bag height h1 of the first bagged spring 6 is smaller than the spring bag height h2 of the second bagged spring 7. When the same spring is packaged in a shorter spring bag, it has a larger bag compression amount, the spring pre-compression amount increases, and the manufactured single bag spring will appear harder; at the same time, the arrangement density of the first bagged spring 6 in the strong support area is denser than that of the second bagged spring 7 in the weak support area, such as Figure 5 The two adjacent rows of first pocket springs 6 in the strong support area 1-1 are staggered in the column direction, i.e., the length direction of the bed core, while the second pocket springs in the two weak support areas 1-2 are aligned in the row and column directions. It can be seen from the figure that the first pocket springs are denser than the second pocket springs, and can further improve the support hardness of the strong support area.

[0032] Embodiment 3 is a mattress having the multi-zone composite bed core described in Embodiment 1 or Embodiment 2. To further improve the comfort, Figure 4 and Figure 6As shown, a thick flat cushion layer 9 is arranged on the upper surface of the multi-zone composite bed core to improve the flatness and enhance the comfort of use. Benefiting from the advantages of the alternating distribution of springs and sponges in reducing the difficulty and cost of bed core manufacturing and reducing weight, the difficulty, cost and weight of the mattress manufacturing can be further reduced, and the yield rate can be improved. The mattress with the above-mentioned bed core will not deform after long-term use, and the mattress maintains good elasticity, and the user has a good sleeping experience.

Claims

1. A multi-zone composite bed core, the bed core has an elastic support structure divided into zones along its length, characterized in that The elastic support structure comprises a spring support area (1) and an elastic material support area (2) alternately arranged along the length direction of the bed core, the spring support area (1) is composed of a plurality of spring modules arranged in an arranged manner, and the adjacent partitions on both sides of the spring support area (1) are elastic material support areas (2), and the spring support area and the elastic material support area are both arranged on an elastic cushion layer (10).

2. The multi-zone composite bed core according to claim 1, characterized in that The elastic support structure is divided into seven partitions along the length direction of the bed core. The seven partitions are composed of three spring support areas (1) and four elastic material support areas (2) arranged alternately, and both ends of the length direction of the bed core are elastic material support areas (2).

3. The multi-zone composite bed core according to claim 2, characterized in that The spring module is a pocket spring, and the spring support area (1) is composed of a plurality of pocket springs arranged in two directions of vertically intersecting rows and columns and connected into an integrated structure, wherein the row direction of the two directions of vertically intersecting rows and columns is parallel to the width direction of the bed core, and the column direction is parallel to the length direction of the bed core.

4. The multi-zone composite bed core according to claim 3, characterized in that The three spring support areas (1) are composed of a strong support area (1-1) in the middle and weak support areas (1-2) on both sides. The support hardness of the strong support area is greater than that of the weak support area. The pocket springs of the strong support area (1-1) and the weak support area (1-2) are respectively a first pocket spring (6) and a second pocket spring (7).

5. The multi-zone composite bed core according to claim 4, characterized in that The first pocket spring (6) and the second pocket spring (7) are the same type of springs which are packaged in spring pockets of different heights, and the spring pocket height of the first pocket spring (6) is smaller than the spring pocket height of the second pocket spring (7); or the first pocket spring (6) and the second pocket spring (7) are the same, and the arrangement density of the first pocket spring (6) is greater than the arrangement density of the second pocket spring (7).

6. The multi-zone composite bed core according to claim 4, characterized in that The first pocket spring (6) and the second pocket spring (7) are made of different springs, and the spring pocket height and caliber of the first pocket spring (6) are greater than the spring pocket height and caliber of the second pocket spring (7).

7. The multi-zone composite bed core according to claim 1, characterized in that Each elastic material support area (2) is made of the same elastic material (5), the elastic material (5) of each elastic material support area (2) is fixed on the elastic cushion layer (10), and the spring module is arranged in a groove (3) surrounded by two adjacent elastic material support areas (2) and the elastic cushion layer (10).

8. The multi-zone composite bed core according to claim 7, characterized in that The elastic cushion layer (10) is made of an elastic material (5), and the elastic material support area (2) and the elastic cushion layer (10) are integrally formed.

9. The multi-zone composite bed core according to claim 7, characterized in that The top surface of the elastic material (5) is provided with a plurality of opening grooves (4) extending in the width direction of the bed core, and the opening grooves are arranged in parallel in the length direction of the bed core. The opening grooves (4) are open at least at one end in the length direction, and the opening grooves (4) can form an opening of variable size between the elastic materials on both sides thereof.

10. A mattress having a multi-partition support core, characterized in that The bed core is the multi-partition composite bed core according to any one of claims 1 to 9, and a flat cushion layer (9) is provided on the upper surface of the multi-partition composite bed core.

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