Glue-free core having good elasticity, and mattress

Abstract

The present invention provides a glue-free core having a good elasticity. The glue-free core comprises a pocket spring set, border wires, and binding straps, wherein the pocket spring set comprises a plurality of pocket springs integrally welded by means of ultrasonic waves, and each pocket spring comprises a pocket body and a spring which is compressed and then loaded into the pocket body; the border wires comprise upper and lower border wires, and the upper part and the lower part of the outermost pocket spring of the pocket spring set are fixedly connected to the upper and lower border wires, respectively; and the binding straps are fixed to the border wires to bind the pocket spring set, so as to limit the displacement and deformation of the pocket spring set. In the glue-free core of the present invention, the pocket springs are integrally welded by means of ultrasonic waves, so that the springs of the core can be integrally connected without glue, thereby solving the problem of the debonding of bonded portions of a conventional mattress due to aging of the glue, and preventing indoor air from being polluted by harmful gas released from the glue. In addition, the pocket springs welded by means of ultrasonic waves provide an excellent elasticity for the core.

Description

A type of elastic, glue-free core and mattress Technical Field

[0001] This invention belongs to the field of home mattress technology, specifically relating to a highly elastic, glue-free core and mattress. Background Technology

[0002] Traditional mattresses typically use a large amount of glue for bonding during the manufacturing process. This not only poses potential threats to the environment and human health but also negatively impacts the mattress's structure and durability. Over time, the glue may accelerate the aging of the mattress's internal materials and even cause the bonded parts to detach, thus shortening the mattress's lifespan. Furthermore, aging materials may release harmful gases, polluting the air quality of the living environment and further affecting the user's health and quality of life.

[0003] Currently, in addition to the common mattresses using whole-spring mattresses, mattresses using pocket springs as elastic support components are also quite popular in the market. However, whether it is a whole-spring mattress or a pocket spring mattress, glue is still used for bonding during mattress assembly, which leads to the aforementioned issues of lifespan and pollution caused by glue bonding.

[0004] In addition, for pocket springs, the traditional pocket springs are put into the pocket without being compressed. This design limits the improvement of the spring's initial support force, resulting in mattresses using pocket springs having poorer elasticity with the same spring wire diameter. Summary of the Invention

[0005] Based on the aforementioned shortcomings and deficiencies in the prior art, one of the objectives of this invention is to at least solve one or more of the aforementioned problems in the prior art, or to provide a glue-free core and mattress with good elasticity that meets one or more of the aforementioned needs.

[0006] To achieve the above-mentioned objectives, the present invention adopts the following technical solution:

[0007] This invention provides a glue-free core with good elasticity, comprising a bag spring assembly, a edging steel, and a strap. The bag spring assembly includes several parallel strings of bag springs, each string of bag springs includes several bag springs arranged in a straight line, and the outer side of each bag spring has an extended welded portion. The welded portions of adjacent bag springs are welded together by ultrasonic welding. Each bag spring includes a bag body and a spring, and the spring is inserted into the bag body after compression.

[0008] The edging steel has two layers, upper and lower. The upper and lower parts of the outermost pocket spring in the pocket spring assembly are fixedly connected to the upper and lower edging steel, respectively. The straps are fixed to the edging steel, binding the pocket spring assembly and restricting the displacement and deformation of the pocket spring assembly.

[0009] In a preferred embodiment, the springs are packed into the pocket at a compression ratio of 2 / 5 to 1 / 2. By packing the springs into the pocket at a compression ratio of 2 / 5 to 1 / 2, the pocket springs provide greater support in the initial state, thereby enhancing the elasticity and comfort of the mattress and ensuring that the mattress rebounds quickly during use, providing better support.

[0010] In a preferred embodiment, the glue-free core also includes edge protectors and corner retaining sleeves. The corner retaining sleeves are fixedly connected to the four corners of the edge steel, and are fastened to the corners of the edge protectors, thus confining the edge protectors around the edge steel. The corner retaining sleeves secure the edge protectors around the edge steel, fixing them to the perimeter of the glue-free core without the use of glue, protecting the glue-free core and improving the mattress's durability.

[0011] As a further preferred embodiment, the glue-free core also includes an intermediate fixing sleeve, which is fixedly connected to the surrounding steel. The intermediate fixing sleeve is fastened to the edge protector, thus confining the edge protector around the surrounding steel. The intermediate fixing sleeve further confines the edge protector around the glue-free core, making the edge protector more stably fixed.

[0012] In one preferred embodiment, the edge protector includes four edge strips arranged in a closed rectangle. This closed rectangular frame ensures the stability and strength of the edge protector structure. This design provides uniform support, prevents deformation of the edge protector due to external forces, and enhances the overall structural strength of the mattress.

[0013] On the other hand, the present invention also provides a mattress with good elasticity, characterized in that it includes a glue-free core as described above, and further includes a top layer, a comfort layer, and a surrounding edge; the top layer, comfort layer, and glue-free core are arranged sequentially from top to bottom, and the surrounding edge is located around the glue-free core. The layered design of the top layer, comfort layer, glue-free core, and surrounding edge enhances comfort while providing good support. The high resilience of the glue-free core combined with the soft padding characteristics of the comfort layer makes the mattress both supportive and provides a comfortable sleep experience.

[0014] In a preferred embodiment, the mattress also includes an inner cover, which comprises a top mesh fabric, a bottom mesh fabric, and an inner cover border. The top mesh fabric and the bottom mesh fabric are fixed above and below the inner cover border, respectively. The glue-free core is disposed within the receiving space formed by the top mesh fabric, the bottom mesh fabric, and the inner cover border. The inner cover assembly, through the top mesh fabric, the bottom mesh fabric, and the inner cover border, effectively prevents the glue-free core from shifting or deforming, increasing the overall stability and durability of the mattress. Simultaneously, the inner cover provides additional protection, extending the mattress's lifespan.

[0015] As a further preferred embodiment, the top and bottom mesh fabrics have raised hexagonal patterns. These raised hexagonal patterns enhance friction, prevent the comfort layer from slipping during use, and improve the stability of the mattress.

[0016] As a further preferred embodiment, the upper fabric of the top layer is made of fiber material. The fiber material of the top layer offers excellent breathability and comfort, effectively regulating the temperature and humidity of the mattress surface, providing a comfortable feel, enhancing mattress comfort, and making the user feel cooler and more comfortable during sleep.

[0017] Compared with the prior art, the beneficial effects of this invention are:

[0018] The glue-free core of this invention uses ultrasonic welding to weld the pocket springs together as a single unit, eliminating the need for glue to connect the springs. This solves the problem of glue detachment caused by glue aging in conventional mattresses and avoids the pollution of indoor air by harmful gases released from glue. This invention also utilizes pocket springs with a 2 / 5-1 / 2 compression ratio in the glue-free core, giving it high initial rebound force and excellent elasticity. Attached Figure Description

[0019] Figure 1 is a schematic diagram of the structure of the elastic glue-free core according to an embodiment of the present invention;

[0020] Figure 2 is a partial enlarged view of the elastic glue-free core of an embodiment of the present invention;

[0021] Figure 3 is a schematic diagram of the structure of the bag spring assembly according to an embodiment of the present invention;

[0022] Figure 4 is a structural schematic diagram of the corner fixing sleeve according to an embodiment of the present invention;

[0023] Figure 5 is a structural schematic diagram of the corner fixing sleeve and the intermediate fixing sleeve according to an embodiment of the present invention;

[0024] Figure 6 is a schematic diagram of the structure of the elastic mattress according to an embodiment of the present invention;

[0025] Figure 7 is a schematic diagram of the inner sleeve in an embodiment of the present invention.

[0026] Reference numerals: 1-Glue-free core, 101-Pocket spring assembly, 1011-Pocket spring, 1012-Welded section, 102-Edge steel, 103-Strap, 1031-Nail gun, 104-Edge guard, 105-Corner fixing sleeve, 1051-Nail gun, 106-Intermediate fixing sleeve, 1061-Nail gun, 2-Top layer, 3-Comfort layer, 4-Bottom layer, 5-Edge, 6-Inner sleeve, 601-Network fabric, 602-Lower mesh fabric, 603-Inner sleeve edging. Embodiments of the present invention

[0027] The essential features of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0028] Hereinafter, specific embodiments of the present invention will be described in detail with reference to the accompanying drawings. The following description with reference to the accompanying drawings is provided to aid in understanding exemplary embodiments of the invention as defined by the claims and their equivalents. It includes various specific details to aid understanding, but these should only be considered exemplary. Therefore, those skilled in the art will recognize that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of the invention. Furthermore, to make the specification clearer and more concise, detailed descriptions of functions and structures well known in the art will be omitted.

[0029] Example 1

[0030] This embodiment discloses a glue-free core with good elasticity. Please refer to Figures 1 and 2. The glue-free core 1 consists of a pocket spring assembly 101 and surrounding steel 102 and edge guards 104 around the pocket spring assembly 101. Specifically, referring to Figure 3, each pocket spring 1011 includes a bag body and a spring inserted into the bag body. Two sheet-like welded portions 1012 extend vertically from both sides of the bag body, and these two welded portions 1012 are symmetrically arranged. Multiple pocket springs 1011 are arranged in a straight line and staggered at two different angles, so that the welded portions 1012 of adjacent pocket springs 1011 are alternately attached to the front and rear of the pocket spring string, respectively. Then, ultrasonic welding is used to connect the attached welded portions 1012 together to form an integral pocket spring string.

[0031] Multiple bundled pocket springs are arranged side-by-side as shown in Figure 3, with the welded portions 1012 of adjacent bundled pocket springs touching. Since the pocket springs 1011 are connected in alternating angles to form bundled pocket springs, and each bundle has welded portions 1012 at both ends, each bundled pocket spring has a welded portion 1012 touching its adjacent bundled pocket springs. By using ultrasonic welding to weld the welded portions 1012 of adjacent bundled pocket springs together, multiple bundled pocket springs can be assembled into a rectangular bundled pocket spring assembly without adhesive bonding.

[0032] Each pocket spring consists of a bag and a spring, with the spring inserted into the bag at a compression ratio of 2 / 5 to 1 / 2. In this embodiment, a compression ratio of 2 / 5 is selected to ensure that each pocket spring has a large initial support force, thereby giving the glue-free core 1 excellent elasticity.

[0033] The edging steel 102 consists of two rectangular frames spaced at a certain distance, with their size equal to the outer dimensions of the pocket spring assembly 101. The outermost ring of pocket springs 1011 is fixedly connected to the edging steel 102. Specifically, the upper edge of the pocket spring 1011 is fixed to the upper edging steel 102 with nails, and the lower edge of the pocket spring 1011 is fixed to the lower edging steel 102 with nails. After fixing the outer side of the pocket spring assembly 101 to the edging steel 102, the rigid structure of the edging steel can limit the overall size of the pocket spring assembly 101, preventing deformation or slippage.

[0034] As shown in Figure 2, multiple straps 103 are fixed to the edging steel 102. Straps 103 are arranged crisscrossingly in two directions on both the upper and lower layers of the edging steel 102 and secured with nails 1031. A certain interval is maintained between the upper and lower layers of straps 103, and the pocket spring assembly 101 is sandwiched between the two layers of straps 103. By binding the pocket spring assembly 101 with the upper and lower layers of straps, the displacement and deformation of the pocket spring assembly 101 are restricted, thereby preventing deformation or misalignment of the spring due to long-term use.

[0035] The glue-free core of this embodiment also includes a protective edge 104, which consists of four protective edge strips connected at a 90-degree angle to form a closed rectangular frame.

[0036] Referring to Figure 4, a corner fixing sleeve 105, as shown in Figure 5, is also provided at the corner position of the edging steel 102. The middle part of the corner fixing sleeve 105 is bent into a 90-degree angle, and its two sides are fixed to the edging steel 102 by nails 1051. The corner fixing sleeve 105 is fastened to the outside of the edge guard 104, restricting the joint of two adjacent edge guard strips to the outside of the corner of the edging steel 102, so that the edge guard 104 surrounds and fits tightly against the edging steel 102, forming an outer frame that protects the edging steel 102.

[0037] Several intermediate fixing sleeves 106, as shown in Figure 5, are also fixed at intervals along the length of the edging steel 102. The installation diagram of the intermediate fixing sleeves 106 is shown in Figure 2. Each intermediate fixing sleeve 106 is fixed to the edging steel 102 by a nail 1061. The guard 104 is installed inside the intermediate fixing sleeve 106 and, under the condition that it has already been limited by the corner fixing sleeve 105, is further restricted by the intermediate fixing sleeve 106 to the perimeter of the edging steel 102.

[0038] In this embodiment, the highly elastic, glue-free core connects the pocket springs together using ultrasonic welding, eliminating the need for glue. This solves the problem of glued parts detaching due to glue aging in traditional mattresses and avoids indoor air pollution caused by harmful gases released from glue. Furthermore, the use of a compression ratio of 2 / 5 to 1 / 2 gives the pocket springs a high initial rebound force, further enhancing the elasticity of the glue-free core.

[0039] Example 2

[0040] This embodiment provides a highly elastic, glue-free mattress. As shown in Figure 6, the mattress includes a top layer 2, a comfort layer 3, a glue-free core 1, a bottom layer 4, and a perimeter 5. The glue-free core 1 is located inside the mattress, the comfort layer 3 is located above the glue-free core 1, and the perimeter 5 surrounds the glue-free core 1. The top layer 2 and the bottom layer 4 cover the top and bottom of the mattress, respectively, sandwiching the comfort layer 3 and the glue-free core 1 between them.

[0041] Comfort Layer 2 is a soft pad with a specified indentation firmness that provides a more comfortable rebound feel to the mattress.

[0042] The mattress in this embodiment uses a glue-free core, with the pocket springs connected as a single unit using ultrasonic welding, eliminating the need for glue. Unlike traditional mattresses, all components of this mattress are joined without glue, avoiding the problem of glue detachment due to aging and preventing harmful gases released from glue from polluting indoor air. Furthermore, the pocket springs in the mattress use a compression ratio of 2 / 5 to 1 / 2, resulting in a high initial rebound force and enhancing the overall elasticity of the mattress.

[0043] Example 3

[0044] This embodiment provides a highly elastic, glue-free mattress, the main difference being the addition of an inner sleeve assembly 6. As shown in Figure 7, the inner sleeve 6 includes a top mesh 601, a bottom mesh 602, and an inner sleeve edging 603. The center of the inner sleeve edging 603 is hollow. The edge of the top mesh 601 is sewn to the edge of the hollowed-out portion on the upper surface of the inner sleeve edging 603, and the edge of the bottom mesh 602 is sewn to the edge of the hollowed-out portion on the lower surface of the inner sleeve edging 603. The glue-free core 1 is inserted into the inner sleeve 6, which is composed of the top mesh 601, the bottom mesh 602, and the inner sleeve edging 603. The comfort layer 3 is placed on top of the inner sleeve 6, and both are inserted into the accommodating space formed by the upper layer 2, the lower layer 4, and the edging 5.

[0045] The top mesh 601 and bottom mesh 602 are made of hexagonal mesh with the edges of each hexagon protruding upwards, forming a high-friction texture. They are located on the upper and lower surfaces of the inner cover 6, respectively. The inner cover 6 not only provides protection for the glue-free core 1, but also applies greater friction to the comfort layer 3 through the high-friction texture of the top mesh 601, preventing it from slipping and thus improving the overall stability of the mattress.

[0046] The above description is merely an exemplary embodiment of this disclosure and should not be construed as limiting the scope of this disclosure. Any equivalent changes and modifications made in accordance with the teachings of this disclosure shall still fall within the scope of this disclosure. Other embodiments of this disclosure will be readily apparent to those skilled in the art upon consideration of the specification and practice of the disclosure herein. This invention is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not described herein. The specification and embodiments are to be considered exemplary only, and the scope and spirit of this disclosure are defined by the claims.

Claims

1. A flexible, glueless core (1) characterized by, The device includes a pocket spring assembly (101), a edging steel (102), and a strap (103). The pocket spring assembly (101) includes several parallel pocket spring strings, each pocket spring string including several linearly arranged pocket springs (1011). Each pocket spring (1011) has an extended welded portion (1012) on its outer side. The welded portions (1012) of adjacent pocket springs (1011) are welded together by ultrasonic welding. 01) Includes a bag body and a spring, the spring being inserted into the bag body after compression; the edging steel (102) has upper and lower layers, the upper and lower parts of the outermost bag spring (1011) in the bag spring assembly (101) are respectively fixedly connected to the upper and lower layers of edging steel (102); the strap (103) is fixed to the edging steel (102), binding the bag spring assembly (101) and restricting the displacement and deformation of the bag spring assembly (101).

2. A flexible, glueless core (1) as claimed in claim 1, characterized in that The spring is inserted into the bag body at a compression ratio of 2 / 5 to 1 / 2.

3. A flexible, glueless core (1) as claimed in claim 1, characterized in that The glue-free core also includes a protective edge (104) and a corner fixing sleeve (105). The corner fixing sleeve (105) is fixedly connected to the four corners of the surrounding steel (102). The corner fixing sleeve (105) is fastened to the corner of the protective edge (104), so that the protective edge (104) is restricted around the surrounding steel (102).

4. A mattress as defined in claim 3, wherein, The glue-free core also includes an intermediate fixing sleeve (106), which is fixedly connected to the surrounding steel (102). The intermediate fixing sleeve (106) is fastened to the protective edge (104), so that the protective edge (104) is restricted around the surrounding steel (102).

5. A flexible, glueless core (1) according to claim 3 or 4, characterized in that The corner fixing sleeve (105) and the intermediate fixing sleeve (106) are fixed with nail guns.

6. A flexible, glueless core (1) as claimed in claim 3, characterized in that, The edge protector (104) includes four edge protector strips, which are arranged in a closed rectangle.

7. A mattress with good elasticity, characterized in that, The adhesive-free core (1) as described in any one of claims 1-5 is further comprising a top layer (2), a comfort layer (3), and a perimeter (5); the top layer (2), the comfort layer (3), and the adhesive-free core (1) are arranged sequentially from top to bottom, and the perimeter (5) is arranged around the adhesive-free core (1).

8. A mattress with good elasticity as described in claim 7, characterized in that, The mattress also includes an inner cover (6), which includes a top mesh (601), a bottom mesh (602), and an inner cover edge (603). The top mesh (601) and the bottom mesh (602) are fixed above and below the inner cover edge (603), respectively. The glue-free core (1) is disposed in the accommodating space formed by the top mesh (601), the bottom mesh (602), and the inner cover edge (603).

9. A mattress with good elasticity as described in claim 8, characterized in that, The upper mesh (601) and the lower mesh (602) have raised hexagonal patterns.

10. A mattress with good elasticity as described in claim 8, characterized in that, The upper fabric of the upper layer (2) is made of fiber material.

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