A glueless combination mattress

Abstract

This utility model relates to the field of mattresses, specifically a glue-free modular mattress. Existing mattresses require adhesive for assembly, leading to problems such as glue odor, environmental unfriendliness, and difficulties in disassembly and recycling. To address this, this utility model provides a glue-free modular mattress, comprising a core layer and an inner cover. The inner cover includes an annular sheath surrounding the core layer, with the core layer located within the inner hole of the annular sheath. The annular sheath has radially open openings around its circumference, each containing an annular edge pad surrounding the core layer. The core layer is confined within the radially open openings by its top and bottom edges connecting to the inner edge of the annular sheath, respectively. At least one of the top and bottom edges of the core layer is detachably connected to the annular sheath. This utility model eliminates the need for glue during mattress assembly, eliminates any irritating odor, is environmentally friendly in production and use, and facilitates easy disassembly and recycling.

Description

Technical Field

[0001] This utility model relates to the field of mattresses, and in particular to a glue-free combination mattress. Background Technology

[0002] Traditional mattresses require extensive use of glue during manufacturing to assemble different functional and placement layers into a single unit. Adjacent layers are glued together. This glue-assembled mattress is environmentally unfriendly, and as ambient temperatures rise, it emits an unpleasant, pungent glue odor. Even after replacing the glue with more environmentally friendly alternatives, the odor problem persists. Furthermore, glue-assembled mattresses are difficult to disassemble and recycle when disposed of. Utility Model Content

[0003] To address the technical problems associated with the use of glue in assembling existing mattresses, such as glue odor, environmental unfriendliness, and difficulty in disassembly and recycling, this invention provides a glue-free modular mattress. The functional layers of the mattress are assembled in a detachable manner, eliminating the need for glue for fixing. It also does not emit any odor when the environment warms up, and the mattress is easier to disassemble and recycle when disposed of.

[0004] The technical solution adopted by this utility model to solve the technical problem is as follows: a glue-free combination mattress, including a core layer and an inner cover, characterized in that the inner cover includes an annular sheath surrounding the core layer, the core layer is disposed in the inner hole of the annular sheath, the annular sheath is provided with a radially open cavity with an inward opening around the circumference, and an annular edge pad surrounding the core layer is provided in the radially open cavity, the core layer is connected to the inner edge of the annular sheath at its top and bottom respectively to abut against the annular edge pad so that it is confined in the radially open cavity, and at least one of the top and bottom of the core layer is detachably connected to the annular sheath.

[0005] This invention relates to a mattress that requires no glue during assembly and emits no pungent odor during use. The mattress is environmentally friendly and healthy in both production and use. Furthermore, it features a detachable connection between the core layer and the inner cover. During assembly, an edge protector can be inserted at this detachable connection point, and the edge protector can be removed from the same location during disassembly. During assembly, with either the bottom or top of the core layer connected to the annular cover, the edge protector can be inserted into the radially open cavity from the detachable connection point. After the edge protector is in place, the connection between the core layer and the annular cover is completed. When both the top and bottom of the core layer are connected to the inner edge of the annular cover, the edge protector is held in place within the radially open cavity of the annular cover. At this point, the annular cover, edge protector, and core layer are assembled as a single unit. Alternatively, with both the bottom and top of the core layer detachably connected to the annular cover, the edge protector can be inserted into the radially open cavity from either detachable connection point. Since spring mattress cores are commonly used, the edge areas are easily damaged due to long-term pressure. The edge protector is placed around the edge of the mattress core and fits tightly against it. When a person sits on the edge of the mattress, the pressure is borne by the edge protector, preventing direct sitting on the outer edge of the mattress core and thus avoiding damage.

[0006] As a further improvement and supplement to the above technical solution, this utility model adopts the following technical measures: The bed core layer includes a bed core and a cover sleeve. The cover sleeve has an opening formed by a zipper B. The cover sleeve is detachably connected to the inner edge of the annular protective sleeve along its top periphery, and is fixedly or detachably connected to the inner edge of the annular protective sleeve along its bottom periphery. The bed core layer consists of the inner bed core and the outer cover sleeve. The inner bed core can be easily taken out or put in by pulling or closing the zipper B. The connection and positioning between the bed core layer and the annular protective sleeve is achieved by connecting the top and bottom of the cover sleeve to the inner edge of the annular protective sleeve, respectively. The top of the cover sleeve is detachably connected to the inner edge of the annular protective sleeve to facilitate the removal and placement of the edge protector. The bottom of the cover sleeve can also be detachably or fixedly connected to the inner edge of the annular protective sleeve.

[0007] The package consists of an upper package and a lower package connected by zipper B. The upper package is detachably connected to the inner edge of the ring-shaped protective sleeve along its periphery via a zipper. The lower package is fixed to the inner edge of the ring-shaped protective sleeve along its periphery via sewing, or detachably connected via a zipper. The package consists of two parts connected by zipper B. The upper and lower packages can be completely separated by a zipper or connected by a non-separable zipper. The upper package is detachably connected to the corresponding inner edge of the ring-shaped protective sleeve along its periphery via a zipper; the lower package can also be detachably connected to the inner edge of the ring-shaped protective sleeve via a zipper or directly sewn into a single fixed connection. When detachably connected by a zipper, the package and the ring-shaped protective sleeve are separable and only assembled together by the zipper when connecting. When fixedly connected by sewing, the lower package and the ring-shaped protective sleeve are a single integrated structure. The detachable zipper connection can also be replaced with other existing detachable connections such as a Velcro strap or snaps.

[0008] The upper cover has an extended edge that extends continuously along its perimeter, and the zipper connecting the upper cover to the inner edge of the annular cover is located on this extended edge. The extended edge allows for more space between the annular cover and the top of the bed core layer, making it easier to open the extended edge and insert the edge protector into the radial opening of the annular cover. The zipper connecting the upper cover and the annular cover on the extended edge also allows it to effectively avoid the zipper B used for installing the bed core. Without the extended edge, the edge protector would have to be directly pulled from the upper surface of the annular cover to install it, but this would be inconvenient as the bed core layer is already inside the annular cover. After the edge protector is in place, the zipper between the extended edge and the inner edge of the annular cover is pulled up to lock the edge protector between the annular cover and the bed core layer.

[0009] The inner sleeve also includes a bottom fabric that is fixedly or detachably connected to the inner edge of the bottom surface of the annular sheath, and the bottom fabric and the annular sheath together form an open cavity for accommodating the bed core layer. The bottom fabric closes the downward open end of the annular sheath, and the open cavity formed by the bottom fabric and the annular sheath can hold and limit the bed core layer, which is supported on the bottom fabric.

[0010] The inner sleeve has an openable / coverable top layer. A first connecting structure connects the top layer to the outer periphery of the annular sheath along its periphery. A separable upper comfort layer adheres to the upper surfaces of both the inner sleeve and the mattress core layer. The top layer can be opened or closed relative to the top of the inner sleeve via the first connecting structure to install and limit the independent upper comfort layer. The upper comfort layer covers both the inner sleeve and the mattress core layer, further improving the mattress's comfort and overall elasticity. The upper comfort layer also improves the unevenness at the joint between the inner sleeve and the mattress core layer, making the upper side of the mattress more flat.

[0011] The first connecting structure is a quadrilateral zipper, or the first connecting structure consists of a U-shaped three-sided zipper and a sewn edge. To accommodate common quadrilateral mattresses, the first connecting structure can use a quadrilateral zipper, or a U-shaped three-sided zipper with a sewn edge. Both structures can meet the different assembly needs of mattresses of different sizes. The former structure allows the top layer to be completely separated from the inner cover, and the mattress can be optionally fitted with a comfort layer and a top layer. The latter structure leaves one side of the top layer connected to the inner cover even when the top layer is fully opened.

[0012] The inner sleeve has an openable / coverable bottom layer. A second connecting structure is provided between the bottom layer and the outer periphery of the annular sheath along its periphery. A lower comfort layer is located between the inner sleeve and the bottom layer, adhering to the lower surfaces of both the inner sleeve and the mattress core. The bottom layer can be opened or closed relative to the inner sleeve via the second connecting structure to install and limit the independent lower comfort layer. The lower comfort layer simultaneously adheres to the bottom surfaces of both the inner sleeve and the mattress core, improving the mattress's comfort and overall elasticity, allowing the mattress to rest flat on a bed board or frame.

[0013] The second connecting structure is a quadrilateral zipper, or the second connecting structure consists of a U-shaped three-sided zipper and a sewn edge. To accommodate common quadrilateral mattresses, the second connecting structure is similar to the first connecting structure, and can be a separate quadrilateral zipper structure, or a structure combining a three-sided zipper and a sewn edge. The former allows the bottom layer to be completely separated from the inner cover, and the mattress can be fitted with both a comfort layer and a bottom layer. The latter structure leaves one side of the bottom layer connected to the inner cover even when fully opened.

[0014] The mattress core and inner cover are enclosed in an outer cover, which is composed of an upper outer cover and a lower outer cover joined together by zipper A. The outer cover serves as the outermost layer of the mattress, protecting the mattress core and inner cover from dirt and damage.

[0015] The beneficial technical effects of this utility model are as follows: the mattress can be assembled without glue, and the layers are connected and positioned by detachable connection structures such as zippers. Components without zippers, such as edge protectors, upper comfort layer, lower comfort layer, and mattress core, can be installed and limited by horizontal or vertical clamping between two layers connected by zippers. The mattress will not emit glue odor during use and is not affected by increased ambient temperature. At the same time, the mattress is easier to disassemble and recycle when disposed of. Attached Figure Description

[0016] Figure 1 Example 1: Structural diagram.

[0017] Figure 2 Example 2: Structural diagram.

[0018] Figure 3 Example 3: Structural diagram.

[0019] Figure 4 Example 4: Structural diagram.

[0020] Figure 5 : Schematic diagram of the bottom fabric being modified to be detachably connected to the annular sheath in Example 4.

[0021] Figure 6 : Schematic diagram of the wrapping sleeve of the bed core layer.

[0022] Figure 7 : Schematic diagram of the bed core layer.

[0023] Figure 8 : Schematic diagram of the installation surface layer and comfort layer on the upper and lower sides of the inner sleeve.

[0024] In the diagram: 1. Bed core layer, 2. Inner sleeve, 3. Circular sheath, 4. Bottom fabric, 5. Edge protector, 6. Bed core, 7. Wrapped sleeve, 7-1. Upper wrapped sleeve, 7-2. Lower wrapped sleeve, 8. Zipper B, 9. Upper extension edge, 10. Lower extension edge, 11. Top layer, 12. Upper comfort layer, 13. First connecting structure, 14. Bottom layer, 15. Second connecting structure, 16. Lower comfort layer, 17-1. Upper outer cover, 17-11. Edge trim, 17-12. Top wall, 17-2. Lower outer cover, 18. Zipper A, 19. Zipper C, 20. Zipper D, 21. Zipper E, 22. Zipper F, 23. Radial opening, 24. Structural line, 25. Seam edge. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0026] like Figure 1As shown, Embodiment 1 is a glue-free combination mattress, including a core layer 1 and an inner sleeve 2. The inner sleeve 2 includes an annular sheath 3 surrounding the core layer 1. The core layer 1 is located in the inner hole of the annular sheath 3. The annular sheath 3 has a radially open cavity 23 with an inward opening around its circumference. The radially open cavity is marked by a structural line 24 indicated by dashed lines in the figure. An annular edge protector 5 is provided in the radially open cavity 23 surrounding the core layer 1. The core layer 1 limits the edge protector by connecting its top and bottom to the inner edge of the annular sheath 3, locking the edge protector 5 into the radially open cavity 23. At least one of the top and bottom of the core layer 1 is detachably connected to the annular sheath 3. In this embodiment, a detachable connection is preferably formed between the top of the bed core layer and the inner edge of the annular sheath 3 by installing a zipper. As shown in the figure, a matching zipper C19 is provided between the top edge of the bed core layer and the inner edge of the top surface of the annular sheath. The bottom edge of the bed core layer is sewn to the inner edge of the annular sheath 3. The position of the zipper C on the bed core layer and the sewing position can be interchanged. In addition, the detachable connection in this embodiment can be a zipper structure, Velcro, or snap fastener structure, etc. The edge pad in this embodiment is composed of 4 separate sponge strips.

[0027] Furthermore, in this embodiment, the core layer 1 is as follows: Figure 6 and Figure 7 As shown, the system includes a bed core 6 and a cover 7 that surrounds it. The cover 7 consists of an upper cover 7-1 and a lower cover 7-2 connected by a zipper B8. Unzipping the zipper B creates an opening for inserting or removing the bed core. The upper cover 7-1 is detachably connected to the inner edge of the top surface of the annular cover 3 via a zipper C19. The lower cover 7-2 is detachably connected to the inner edge of the bottom surface of the annular cover 3 via stitching or a zipper. In this embodiment, the lower cover and the annular cover are preferably connected via a stitched edge 25. During assembly, first unzip the zipper B on the cover, place the bed core 6 into the cover, and zip up the zipper to complete the bed core assembly. Then, pull the upper cover around its perimeter to insert the four sections of the edge protector into the radially open mouths on the four sides of the annular cover. After the edge protector is in place, zip up the zipper C. At this point, the bed core and the annular cover are connected, and the edge protector is confined within the annular cover. To avoid operational inconvenience caused by pulling the upper cover, the upper cover 7-1 has an extended upper edge 9 that extends continuously around the perimeter. The zipper C19 is located on the extended upper edge 9. In use, the extended upper edge can be folded up, and the edge protector can be inserted into the radial opening of the annular cover. In this embodiment, zippers B and C can be quadrilateral zipper structures that can be completely separated along the four sides shown in the figure, or U-shaped zippers that are continuous along three sides and zipper structures that are sewn together on one side.

[0028] Furthermore, such as Figure 8As shown, the top of the inner sleeve 2 may also be provided with an openable / coverable top surface layer 11. A first connecting structure 13 is provided between the top surface layer 11 and the outer periphery of the annular sheath 3. A separable upper comfort layer 12 is provided between the inner sleeve 2 and the top surface layer 11, covering the upper surfaces of the inner sleeve 2 and the mattress core layer 1. The first connecting structure 13 is a combination of a quadrilateral zipper or a U-shaped three-sided zipper with a sewn edge. In this embodiment, a quadrilateral zipper E21 is preferred. The upper comfort layer covers both the inner sleeve and the mattress core layer, improving the mattress's comfort and overall elasticity, reducing unevenness at the joint between the inner sleeve and the mattress core layer, and making the upper side of the mattress flatter. Similarly, the bottom of the inner sleeve 2 also has an openable / coverable bottom layer 14. A second connecting structure 15 is provided between the bottom layer 14 and the outer periphery of the annular sheath 3. A lower comfort layer 16 is provided between the inner sleeve 2 and the bottom layer 14, covering the lower surfaces of the inner sleeve 2 and the core layer 1. The second connecting structure 15 can also be a combination of a quadrilateral zipper or a U-shaped three-sided zipper with a sewn edge; a quadrilateral zipper F22 is preferred. The lower comfort layer is attached to both the bottom surface of the inner sleeve and the bottom surface of the core layer, which helps improve the mattress's comfort and overall elasticity, and allows the mattress to be placed flat on the bed board or frame with the bottom side facing down. The core layer has a comfort layer on each of its upper and lower sides. Even with different elasticity between the two comfort layers, the mattress can be flipped for use, allowing one comfort layer to face upwards to meet different sleeping needs. The two comfort layers sandwiching the core layer also prevent the core layer from shifting during mattress bending, packaging, or vertical transport. As shown in the figure, the bed core layer 1 and the inner cover 2 are covered by an outer cover, which is composed of a separable upper outer cover 17-1 and a lower outer cover 17-2 spliced ​​together by zipper A18. The upper outer cover 17-1 consists of a top wall 17-12 and a continuous edging 17-11 around its perimeter, and the two are an integral structure. The lower outer cover 17-2 is a fabric surface. The outer cover covers the inner bed core layer and the inner cover to prevent them from getting dirty.

[0029] In this embodiment, the mattress can be assembled into a single unit without glue, combining the ring-shaped cover, mattress core, edge protector foam, and two comfort layers. The mattress will not emit any irritating odor during subsequent use, making its production and use environmentally friendly and healthy. The mattress core, inner cover, and edge protector are easily disassembled and recycled. The edge protector can be inserted into the radial opening with the detachable connection between the top of the mattress core and the inner edge of the ring-shaped cover open. Once the edge protector is in place, the connection between the top of the mattress core and the inner edge of the ring-shaped cover is complete, with the mattress core holding the edge protector within the radial opening of the ring-shaped cover. The edge protector acts as a reinforcing structure around the outer edge of the mattress, protecting the perimeter of the mattress core and preventing damage to the edge area when someone sits on the edge. The edge protector can be made from common mattress manufacturing materials such as foam and pearl cotton. The assembly and positioning of the upper and lower comfort layers are also completed using zipper structures between the corresponding surface layers and the ring-shaped cover. The outermost cover of the mattress is also assembled and connected using zippers; the entire mattress is glue-free.

[0030] Example 2 Figure 2 As shown, this is also a glue-free combination mattress. The difference from Example 1 is that the stitching between the lower cover 7-2 and the inner edge of the bottom of the ring cover 3 is changed to a detachable connection using zipper D20. There are corresponding zippers between the bottom of the lower cover and the ring cover. When assembling, the zipper D needs to be pulled up first to connect the lower cover and the ring cover before installing the mattress core. The steps after the mattress core is installed are the same as in Example 1.

[0031] In this embodiment, the lower wrapping sleeve can also have a lower extension edge 10 around its perimeter, and a zipper D20 can be installed on the lower extension edge 10, thus becoming... Figure 3 The remaining parts of Embodiment 3 are the same as those of Embodiment 2. Since both the upper and lower sleeves are provided with extension edge mounting zippers, the edge protector can be selected by flipping up the upper or lower extension edge and inserting the edge protector into the radial opening of the annular sleeve.

[0032] Example 4 Figure 4 As shown, this is also a glue-free combination mattress. The difference from Example 1 is that the bottom surface of the mattress core layer 1 and the ring-shaped sheath 3 are not connected. Specifically, there is no connection between the lower cover 7-2 and the bottom surface of the ring-shaped sheath 3. The mattress core layer 1 is supported and positioned by a bottom fabric 4 connected to the bottom surface of the ring-shaped sheath 3. The bottom fabric 4 is sewn to the inner edge of the bottom surface of the ring-shaped sheath 3 around its perimeter. Alternatively, the sewing between the bottom fabric and the ring-shaped sheath can be replaced with a zipper connection; specifically, the bottom fabric is detachably connected to the bottom surface of the ring-shaped sheath via a zipper.

Claims

1. A glue-free combination mattress, comprising a core layer (1) and an inner cover (2), characterized in that: The inner sleeve (2) includes an annular sheath (3) surrounding the core layer (1). The core layer (1) is located in the inner hole of the annular sheath (3). The annular sheath (3) has a radially open cavity (23) with an inward opening around its circumference. The radially open cavity (23) has an annular edge pad surrounding the core layer (1). The core layer (1) is connected to the inner edge of the annular sheath (3) at its top and bottom respectively, which abuts against the annular edge pad and confines it to the radially open cavity (23). At least one of the top and bottom of the core layer (1) is detachably connected to the annular sheath (3).

2. The glue-free composite mattress according to claim 1, characterized in that: The bed core layer (1) includes a bed core (6) and a cover (7) that wraps around it. The cover (7) has an opening formed by a zipper B (8). The cover (7) is detachably connected to the inner edge of the annular sheath (3) along the top periphery. The cover (7) is fixedly or detachably connected to the inner edge of the annular sheath (3) along the bottom periphery.

3. The glue-free composite mattress according to claim 2, characterized in that: The package (7) is composed of an upper package (7-1) and a lower package (7-2) connected by a zipper B (8). The upper package (7-1) is detachably connected to the inner edge of the annular sheath (3) along its periphery by a zipper. The lower package (7-2) is fixedly connected to the inner edge of the annular sheath (3) along its periphery by sewing or by a detachable zipper.

4. The glue-free composite mattress according to claim 3, characterized in that: The upper cover (7-1) is provided with an extended side that extends continuously along the periphery, and the zipper connecting the upper cover (7-1) to the inner edge of the annular sheath (3) is provided on the extended side.

5. The glue-free composite mattress according to claim 1, characterized in that... The inner sleeve (2) also includes a bottom cloth (4) that is fixedly or detachably connected to the inner edge of the bottom surface of the annular sheath (3), and the bottom cloth (4) and the annular sheath (3) form an open cavity for accommodating the bed core layer (1).

6. The glue-free composite mattress according to claim 1, characterized in that... The inner sleeve (2) has an openable / coverable top surface layer (11) at the top. The top surface layer (11) has a first connecting structure (13) between its periphery and the outer periphery of the annular sheath (3). A separable upper comfort layer (12) is provided between the inner sleeve (2) and the top surface layer (11) and is attached to the upper surface of the inner sleeve (2) and the bed core layer (1).

7. The glue-free composite mattress according to claim 6, characterized in that... The first connecting structure (13) is a quadrilateral zipper, or the first connecting structure (13) is composed of a U-shaped three-sided zipper and a sewn edge.

8. The glue-free composite mattress according to claim 1, characterized in that... The bottom of the inner sleeve (2) is provided with an openable / coverable bottom layer (14), and a second connecting structure (15) is provided between the bottom layer (14) and the outer periphery of the annular sheath (3). A lower comfort layer (16) is provided between the inner sleeve (2) and the bottom layer (14) and is attached to the lower surface of the inner sleeve (2) and the bottom fabric (4).

9. The glue-free composite mattress according to claim 8, characterized in that... The second connecting structure (15) is a quadrilateral zipper, or the second connecting structure (15) consists of a U-shaped three-sided zipper and a sewn edge.

10. The glue-free composite mattress according to any one of claims 1 to 9, characterized in that... The core layer (1) and inner sleeve (2) are wrapped in an outer sleeve, which is made up of an upper outer sleeve (17-1) and a lower outer sleeve (17-2) joined together by a zipper A (18).

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