Glue-free core body and mattress

Abstract

The utility model provides a glue-free core body which comprises a bagged spring set, surrounding edge steel and a safe edge, the surrounding edge steel and the safe edge are arranged on the periphery of the bagged spring set in a surrounding mode, the bagged spring set comprises a plurality of parallel bagged spring strings, each bagged spring string comprises a plurality of bagged springs arranged in a linear mode, and the outer sides of the bagged springs are provided with extending welding portions. The welding parts of the adjacent bagged springs are welded into a whole through ultrasonic waves; a corner fixing sleeve is fixed on the surrounding edge steel, the safe edge comprises a plurality of safe edge strips, the safe edge strips are joggled to form a closed rectangle, and the corner fixing sleeve is buckled at the joggling position of the adjacent safe edge strips, fixes the joggling position of the safe edge strips and limits the safe edge on the periphery of the surrounding edge steel. According to the non-glue core body, the bagged springs are welded into a whole through ultrasonic welding, so that the core body can connect the springs into a whole without glue adhesion, the problem that the adhesion part falls off due to glue aging of a conventional mattress is solved, and harmful gas released by glue is prevented from polluting indoor air.

Description

Technical Field

[0001] This utility model belongs to the field of home mattress technology, specifically relating to a 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. Utility Model Content

[0004] Based on the aforementioned shortcomings and deficiencies in the existing technology, one of the objectives of this utility model is to at least solve one or more of the aforementioned problems in the existing technology, or to provide a glue-free core and mattress that meets one or more of the aforementioned needs.

[0005] To achieve the above-mentioned objectives, this utility model adopts the following technical solution:

[0006] This utility model provides a glue-free core, including a bag spring assembly and a surrounding steel and a protective edge surrounding the bag spring assembly. 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 ultrasonically welded together. A corner fixing sleeve is fixed on the surrounding steel, and the protective edge includes several protective strips. The protective strips are tenoned together to form a closed rectangle, and the corner fixing sleeve is fastened to the tenon joint of adjacent protective strips to fix the tenon joint of the protective strips and restrict the protective edge around the surrounding steel.

[0007] In a preferred embodiment, the edge protector includes a first edge protector arranged along a first direction and a second edge protector arranged along a second direction, which are perpendicular to each other. The first edge protector has protrusions at both ends, and the second edge protector has insertion holes at both ends. The ends of the first and second edge protectors are perpendicularly interlocked to form a closed rectangle. The edge protectors arranged perpendicularly in the first and second directions form a closed rectangular frame, effectively fixing and protecting the pocket spring assembly. The design of the protrusions and insertion holes not only ensures precise alignment of the edge protectors but also increases the structural strength, allowing the edge protector to adhere tightly to the edging steel without the use of glue.

[0008] As a further preferred embodiment, several intermediate fixing sleeves are also fixed to the edging steel. These intermediate fixing sleeves are fastened to the edge guard, thus confining the edge guard around the edging steel. The design of the intermediate protective sleeves can further restrict the position of the edge guard, making it fit more closely to the edging steel.

[0009] In a preferred embodiment, the corner fixing sleeve includes a first fixing part and a second fixing part, both of which have grooves for accommodating edge strips, with two adjacent edge strips respectively fastened into the grooves. By fixing the edge strips to two mutually perpendicular fixing parts, the corner fixing sleeve can effectively enhance the connection stability of the edge strips at the corner, preventing the edge strips from loosening or misaligning at the corner.

[0010] In a preferred embodiment, the glue-free core mattress also includes straps that are secured to the edge steel and bind the pocket spring assembly. The straps apply inward pressure to the pocket spring assembly, limiting the displacement or deformation of the pocket springs within the mattress, thus ensuring the mattress's support and elasticity.

[0011] As a further preferred embodiment, the straps are secured to the edge steel with nails. Securing the straps to the edge steel prevents loosening or detachment due to external forces.

[0012] On the other hand, this utility model also provides a glue-free mattress, including a glue-free core as described above, and further including a top layer, a comfort layer, and a surrounding edge; the top layer, the comfort layer, and the glue-free core are arranged sequentially from top to bottom, and the surrounding edge is arranged around the glue-free core.

[0013] 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.

[0014] As a further preferred embodiment, the top and bottom mesh fabrics have raised hexagonal patterns. These raised hexagonal patterns enhance friction, prevent the firmness adjustment layer from slipping during use, and improve the mattress's stability.

[0015] As a further preferred embodiment, the upper fabric of the top layer is made of fiber material. The fiber material top layer possesses 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 more refreshed and comfortable during sleep. Compared with the prior art, the beneficial effects of this invention are:

[0016] This invention features a glue-free core that uses ultrasonic welding to fuse pocket springs into a single unit. This eliminates the need for glue to connect the springs, solving the problem of glue detachment caused by glue aging in conventional mattresses and preventing harmful gases released from glue from polluting indoor air. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the glue-free core according to an embodiment of the present invention;

[0018] Figure 2 This is a partial enlarged view of the glue-free core of this utility model embodiment;

[0019] Figure 3 This is a schematic diagram of the structure of the bag spring assembly according to an embodiment of the present utility model;

[0020] Figure 4 This is a schematic diagram of the edge protection structure according to an embodiment of the present utility model;

[0021] Figure 5 This is a schematic diagram of the corner fixing sleeve according to an embodiment of the present utility model;

[0022] Figure 6 This is a structural schematic diagram of the corner fixing sleeve and the intermediate fixing sleeve according to an embodiment of the present utility model;

[0023] Figure 7 This is a structural schematic diagram of the glue-free mattress according to an embodiment of the present invention;

[0024] Figure 8 This is a schematic diagram of the inner sleeve in an embodiment of the present utility model.

[0025] Figure label:

[0026] 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, 1041-First edge guard strip, 1042-Second edge guard strip, 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 guard, 6-Inner sleeve, 601-Network fabric, 602-Lower mesh fabric, 603-Inner sleeve edge guard. Detailed Implementation

[0027] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0028] The specific embodiments of the present invention will now 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 present invention as defined by the claims and their equivalents. It includes various specific details to aid understanding, but these are to be considered exemplary only. 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 present 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, the structural schematic diagram of which is shown below. Figure 1 and Figure 2 As shown. The glue-free core 1 includes a pocket spring assembly 101 and surrounding steel 102 and protective edging 104 around the pocket spring assembly 101. See details... 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 a single pocket spring string.

[0031] Multiple bagged springs strung together Figure 3The pocket springs are arranged side-by-side, with the welded portions 1012 of two adjacent pocket spring strings touching. Since the pocket springs 1011 are connected in alternating angles to form pocket spring strings, and each has a welded portion 1012 at both the front and back, each pocket spring string has a welded portion 1012 touching its adjacent pocket spring strings. By using ultrasonic welding to weld the welded portions 1012 of adjacent pocket spring strings together, multiple pocket spring strings can be combined into a rectangular pocket spring assembly without adhesive bonding.

[0032] The pocket springs are connected using ultrasonic welding, with two symmetrical welded sections extending from the side of each pocket spring. The welded sections of adjacent pocket springs are connected to each other by ultrasonic welding, thus assembling multiple pocket springs into a single unit.

[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] like Figure 2 As shown, 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] like Figure 4 As shown, the edge protector 104 includes four edge protector strips: two first edge protector strips 1041 arranged in the front-to-back direction and two second edge protector strips 1042 arranged in the left-to-right direction. The first edge protector strips 1041 and the second edge protector strips 1042 form a 90-degree angle. The ends of the first edge protector strips 1041 are provided with protrusions, and the ends of the second edge protector strips 1042 are provided with insertion holes. Through the mortise and tenon structure of the protrusions and insertion holes, the four edge protector strips can be assembled into a closed rectangular frame without the use of glue.

[0036] See Figure 5 At the corner of the edging steel 102, such as Figure 6The corner fixing sleeve 105 is shown. 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] Along its length, the edging steel 102 is also fixed with such... Figure 6 Several intermediate fixing sleeves 106 are shown. An installation diagram of the intermediate fixing sleeves 106 is shown below. Figure 2 As shown, each intermediate fixing sleeve 106 is fixed to the edging steel 102 by a nail 1061 and is fixed by a nail 1061. The guard 104 is installed inside the intermediate fixing sleeve 106 and is further restricted by the intermediate fixing sleeve 106 to the perimeter of the edging steel 102 under the condition that it has been limited by the corner fixing sleeve 105.

[0038] In this embodiment, the glue-free core uses ultrasonic welding to connect the pocket springs into one piece, avoiding the problem of adhesive detachment caused by glue aging in traditional mattresses, and preventing harmful gases released by the glue from polluting indoor air. Simultaneously, in this embodiment, the edge protector used to protect the pocket spring assembly uses a mortise and tenon structure connection, and is further confined around the pocket spring assembly by corner fixing sleeves and intermediate fixing sleeves. The use of glue-free bonding enhances the structural stability of the edge protector.

[0039] Example 2

[0040] This embodiment provides a glue-free mattress, such as... Figure 6 As shown. 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 3 is a soft pad with a specified indentation firmness, providing a more comfortable rebound feel to the mattress. Additionally, comfort layer 3 in this embodiment is breathable and is composed of one or more materials selected from 3D materials, air fibers, and breathable sponges.

[0042] The upper layer 2 is made of one or more of the following: moisture-wicking fibers, bamboo fibers, and Tencel fibers, providing a good sleeping feel and having a breathable and moisture-wicking effect.

[0043] The mattress in this embodiment uses a glue-free core, with the pocket springs connected together using ultrasonic welding, eliminating the need for glue. Unlike traditional mattresses, this mattress uses a glue-free core, and all connecting parts are joined using glue-free methods, thus avoiding the problem of glued parts falling off due to aging, and preventing harmful gases released by glue from polluting indoor air.

[0044] Example 3

[0045] This embodiment provides a glue-free mattress, the main difference being the addition of an inner sleeve component 6 to its structure. For example... Figure 7 As shown, 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.

[0046] The top mesh 601 and bottom mesh 602 are made of hexagonal mesh with edges protruding upwards, forming a high-friction texture, located on the upper and lower surfaces of the inner cover 6, respectively. The inner cover 6 not only protects the glue-free core 1 but also applies significant friction to the comfort layer 3 through the high-friction texture of the top mesh 601, preventing slippage and thus improving the overall stability of the mattress.

[0047] 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 glue-free core, comprising a pocket spring assembly (101) and a surrounding steel strip (102) and a protective edge (104) surrounding the pocket spring assembly, characterized in that, The pocket spring assembly (101) includes several parallel pocket spring strings, each pocket spring string including several pocket springs (1011) arranged in a straight line, the pocket springs (1011) having an extended welded portion (1012) on the outside, the welded portions (1012) of adjacent pocket springs (1011) being welded together by ultrasonic welding; a corner fixing sleeve (105) is fixed on the edging steel (102), the edge guard (104) includes several edge guard strips, the edge guard strips are tenoned into a closed rectangle, the corner fixing sleeve (105) is fastened to the tenon joint of adjacent edge guard strips, fixing the tenon joint of the edge guard strips and restricting the edge guard (104) around the edging steel (102).

2. The glue-free core as described in claim 1, characterized in that, The edge protector includes a first edge protector (1041) arranged along a first direction and a second edge protector (1042) arranged along a second direction. The first direction and the second direction are perpendicular. The first edge protector (1041) has protruding portions at both ends, and the second edge protector (1042) has insertion holes at both ends. The ends of the first edge protector (1041) and the second edge protector (1042) are inserted perpendicularly to form a closed rectangle.

3. The glue-free core as described in claim 1, characterized in that, Several intermediate fixing sleeves (106) are also fixed on the perimeter steel (102). The intermediate fixing sleeves (106) are fastened to the edge guard (104), so that the edge guard (104) is restricted around the perimeter steel (102).

4. The glue-free core as described in claim 1, characterized in that, The corner fixing sleeve (105) includes a first fixing part and a second fixing part. The first fixing part and the second fixing part have grooves for accommodating the edge strips, and two adjacent edge strips are respectively fastened in the grooves.

5. The glue-free core as described in claim 1, characterized in that, The glue-free core also includes a strap (103) which is fixed to the edge steel (102) and binds the bag spring assembly (101).

6. The glue-free core as described in claim 5, characterized in that, The strap (103) is fixed to the edging steel (102) by a nail.

7. A glue-free mattress, characterized in that, The device includes the glue-free core (1) as described in any one of claims 1-6, and also includes a top layer (2), a comfort layer (3), and a perimeter (5); the top layer (2), the comfort layer (3), and the glue-free core (1) are arranged sequentially from top to bottom, and the perimeter (5) is arranged around the glue-free core (1).

8. A glue-free mattress 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 glue-free mattress as described in claim 8, characterized in that, The upper mesh (601) and the lower mesh (602) have raised hexagonal patterns.

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