A glueless bed core and mattress
By combining the mortise and tenon structure and glue-free edge protection components with high-density sponge and breathable mesh fabric, the problem of glue bonding in traditional mattresses is solved, resulting in an environmentally friendly, stable, and durable glue-free mattress structure that improves lifespan and comfort.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SLEEMON HEALTHY SLEEP TECHNOLOGY CO LTD
- Filing Date
- 2025-06-20
- Publication Date
- 2026-07-24
AI Technical Summary
Traditional mattresses use glue for bonding, which leads to odor release, aging, and structural instability. They are also difficult to recycle and lack effective edge protection, making the edges prone to deformation and damage, thus affecting their lifespan.
The edge protection components, connected by mortise and tenon joints, surround the bed core. Combined with high-density, high-hardness sponge and breathable mesh fabric, the internal components of the bed core are connected by ultrasonic welding without glue, forming a stable glue-free bed core structure.
It improves the environmental friendliness, stability and durability of the mattress, avoids the odor release and aging problems caused by glue, extends the service life, and provides a healthy and comfortable sleep environment.
Smart Images

Figure CN224539823U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of home mattress technology, specifically relating to a glue-free mattress core and mattress. Background Technology
[0002] Traditional mattresses often use glue to bond the edge material to the mattress core. Glue can develop an odor over time and may accelerate the aging of the mattress's internal materials, even causing the glued parts to detach, thus shortening the mattress's lifespan. Furthermore, traditional glue bonding increases the complexity and cost of the manufacturing process. Additionally, mattresses bonded with glue are more difficult to recycle and are environmentally unfriendly.
[0003] While glue-free mattresses avoid the problems associated with glue, their lifespan and durability are affected by the lack of effective edge protection, especially in frequently used areas such as the edges, where deformation and damage are more likely. Therefore, there is an urgent need for a mattress structure that is both environmentally friendly and durable to address these issues. Summary of the Invention
[0004] To address the shortcomings of existing technologies, this utility model provides a glue-free bed core and mattress. The bed core is surrounded by a protective edge structure to fix and protect the core. The protective edge structure is connected by mortise and tenon joints, and the connection between the core and the protective edge structure does not require glue, thus improving the environmental performance of the bed core and effectively enhancing its stability and durability.
[0005] This utility model provides a glue-free bed core, including a core body, a protective edge structure surrounding the core body, and an inner sleeve covering the core body and the protective edge structure; The edge protection structure includes two pairs of edge protection components, which are connected by mortise and tenon joints to fix and protect the core.
[0006] The edge protection structure surrounds the core to fix and protect it, preventing deformation and damage to the core edges due to stress. The edge protection structure is composed of edge protection components connected by mortise and tenon joints, eliminating the need for glue between the core and the edge protection structure. This solves the problems of odor release and structural aging associated with traditional glue bonding, making it not only more environmentally friendly and healthier but also improving the stability and durability of the bed core.
[0007] In a preferred embodiment, one pair of the two pairs of edge guard components has grooves at both ends, and the other pair has tenons at both ends that match the grooves. The two pairs of edge guard components are connected to the grooves via the tenons to form the edge guard structure. The matching design of the grooves and tenons enables quick matching and positioning of the edge guard components and a tight connection, enhancing structural stability. At the same time, the edge guard components can be disassembled and replaced individually, effectively reducing maintenance costs and improving the economy and environmental friendliness of the bed core.
[0008] In a preferred embodiment, the edge protection structure is made of high-density, high-hardness sponge, wherein the sponge density is greater than or equal to 30 kg / m³, and the sponge hardness is greater than or equal to 200 N. The high-density, high-hardness sponge provides sufficient support strength, effectively increasing the stability and durability of the edge protection structure, reducing aging and deformation problems caused by long-term, frequent pressure on the mattress edges, and effectively extending the service life of the edge protection structure.
[0009] In a preferred embodiment, the core is a spring core, composed of several parallel spring strings. The spring core provides uniform elastic support, improving mattress comfort and making it suitable for users of different weights. The parallel spring strings form a stable force-bearing support system, preventing localized core collapse.
[0010] In a preferred embodiment, the spring string is a bagged spring string, each bagged spring string comprising a plurality of bagged springs arranged in a straight line, each bagged spring having a protruding welded portion on its outer side, and the welded portions of adjacent bagged springs being ultrasonically welded together. Ultrasonic welding technology achieves glue-free connection between bagged springs, ensuring core stability and durability while avoiding odor release and structural aging problems associated with glue bonding.
[0011] In a preferred embodiment, the inner cover is made of breathable mesh fabric. This breathable mesh fabric promotes air circulation, effectively preventing moisture buildup inside the mattress, reducing the risk of mold, and providing users with a healthier and more comfortable sleeping environment. At the same time, users can visually see the internal structure through the mesh, increasing product transparency and credibility.
[0012] In a preferred embodiment, the inner sleeve has a hexagonal grid. The hexagonal grid structure ensures the breathability of the inner sleeve while enhancing its tear resistance and structural stability, preventing grid deformation due to long-term use.
[0013] In a preferred embodiment, the inner sleeve includes a top mesh and a bottom mesh, and a zipper is provided on the top mesh or the bottom mesh. The zipper design allows the inner sleeve to be opened and closed quickly, facilitating user inspection or replacement of internal components (such as the edge protection structure and the core), improving the product's economy and environmental friendliness, and enhancing the user experience.
[0014] On the other hand, this utility model also provides a glue-free mattress, including a glue-free mattress core as described in any of the above claims and an outer cover covering the glue-free mattress core; the outer cover includes an upper layer, a lower layer, and an outer cover edging connecting the upper layer and the lower layer; the upper layer, the glue-free mattress core, and the lower layer are arranged sequentially from top to bottom. Through the cooperation of the outer cover and the glue-free mattress core, a complete glue-free mattress structure is formed, providing a comfortable surface feel and a comfortable sleep experience.
[0015] In a preferred embodiment, a filling layer, made of sponge, is further provided between the top layer and the glue-free mattress core. The sponge filling layer can distribute pressure, further enhancing the mattress's comfort and improving the user's sleep experience.
[0016] Compared with the prior art, the beneficial effects of this utility model are as follows: The glue-free mattress core has an edge protection structure around its core. The edge protection structure consists of edge protection components connected by mortise and tenon joints. The connection between the core and the edge protection structure does not require glue, which solves the problems of odor release and structural aging associated with traditional glue bonding. At the same time, the edge protection structure can also protect the edge area of the core, effectively improving the stability and durability of the mattress core.
[0017] The core is composed of pocket springs, which are ultrasonically welded together without the need for glue, effectively improving the environmental friendliness and durability of the bed core.
[0018] The core and edge structure are covered with breathable mesh fabric, which effectively promotes air circulation, prevents moisture buildup inside the mattress, reduces the risk of mold, and provides users with a healthier and more comfortable sleeping environment. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of a glue-free bed core. Figure 2 This is a structural schematic diagram of the edge protection assembly; Figure 3 This is a schematic diagram of the edge protection structure; Figure 4 This is a schematic diagram of the core structure; Figure 5 This is a structural diagram of the combination of the core and the edge protection structure. Figure 6 This is a schematic diagram of the inner sleeve structure; Figure 7 This is a schematic diagram of the three-dimensional structure of a bagged spring string; Figure 8 This is a connection diagram for a bag spring; Figure 9 This is a schematic diagram of the connection of a bagged spring string; Figure 10 This is a structural diagram of a glue-free mattress.
[0020] Explanation of reference numerals in the attached drawings: 1. Glue-free bed core; 101. Core body; 1011. Pocket spring; 1012. Welded section; 102. Edge protection structure; 1021. Edge protection assembly; 1022. Groove; 1023. Tenon; 103. Inner sleeve; 1031. Netting; 1032. Lower netting; 1033. Zipper; 2. Top layer; 3. Bottom layer; 4. Filling layer. Detailed Implementation
[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0022] The present invention will now be described in further detail with reference to the accompanying drawings: Example 1: This embodiment provides a glue-free bed core 1, such as... Figure 1 As shown, it includes a core 101, a protective edge structure 102 surrounding the core 101, and an inner sleeve 103 covering the core 101 and the protective edge structure 102; as Figure 3 As shown, the edge protection structure 102 includes two pairs of edge protection components 1021, which are connected by mortise and tenon joints to fix and protect the core 101.
[0023] An edge protection structure 102 is provided around the core 101 to fix and protect the core 101, preventing deformation and damage to the edges of the core 101 due to stress. The edge protection structure 102 is composed of edge protection components 1021 connected by a mortise and tenon structure. No glue is needed to fix the core 101 and the edge protection structure 102, which solves the problems of odor release and structural aging associated with traditional glue bonding of edge protection materials to the core. This not only makes it more environmentally friendly and healthier, but also improves the stability and durability of the bed core.
[0024] The specific structure of the edge protection component 1021 is as follows: Figure 2 As shown, one pair of edge protection components 1021 has grooves 1022 at both ends, and the other pair of edge protection components 1021 has tenons 1023 at both ends that match the grooves 1022. The two pairs of edge protection components 1021 are connected to the grooves 1023 through the tenons 1022 to form the edge protection structure 102.
[0025] After the core 101 is manufactured, the edge protection assembly 1021 is used to surround the core 101. The structure after the core 101 and the edge protection structure 102 are combined is as follows: Figure 5 As shown, the matching design of the groove 1022 and the tenon 1023 enables the edge guard assembly 1021 to be quickly matched, positioned, and tightly connected, effectively enhancing structural stability. At the same time, the edge guard assembly 1021, which uses a mortise and tenon structure connection, can be disassembled and replaced individually, effectively reducing maintenance costs and improving the economy and environmental friendliness of the bed core.
[0026] The edge protection structure 102 is made of high-density, high-hardness sponge, wherein the density of the sponge is greater than or equal to 30 kg / m3 and the hardness of the sponge is greater than or equal to 200 N.
[0027] High-density, high-hardness foam provides sufficient support strength, effectively increasing the stability and durability of the edge protection structure 102, reducing aging and deformation problems caused by long-term, frequent pressure on the mattress edges, and effectively extending the service life of the edge protection structure.
[0028] In this embodiment, the core 101 is a spring core, composed of several parallel spring strings, and the three-dimensional structure of the core 101 is as follows: Figure 4 As shown.
[0029] Specifically, the spring string is a bagged spring string, each bagged spring string including several bagged springs 1011 arranged in a straight line, each bagged spring 1011 including a bag body and a spring inserted into the bag body. For example... Figure 8 As shown, each bag spring 1011 has two sheet-like welded portions 1012 extending vertically from both sides of the bag body. The two welded portions 1012 are symmetrically arranged. Multiple bag springs 1011 are arranged in a straight line and staggered at two angles, so that the welded portions 1012 of adjacent bag springs 1011 are staggered and attached to the front and rear of the bag spring string, respectively. Then, ultrasonic waves are used to weld the attached welded portions 1012 together to form an integral bag spring string.
[0030] Multiple bagged springs strung together Figure 9 The bagged springs are arranged side-by-side, with the welded portions 1012 of two adjacent bagged spring strings touching. Since the bagged springs 1011 are connected in two alternating angles to form bagged spring strings, and each has a welded portion 1012 at both ends, each bagged spring string is in contact with the welded portion 1012 of its adjacent bagged spring strings. By using ultrasonic waves to weld the welded portions 1012 of adjacent bagged spring strings together, multiple bagged spring strings can be arranged in parallel to form a spring core without adhesive bonding. The connection of multiple bagged spring strings is as follows: Figure 9 As shown, the three-dimensional structure formed by connecting multiple bag springs in series is as follows: Figure 7 As shown.
[0031] In this embodiment, the inner sleeve 103 is made of breathable mesh fabric with hexagonal mesh. After the edge protection structure 102 is combined with the core 101, the inner sleeve 103 is used to cover it to form a glue-free bed core 1.
[0032] Breathable mesh fabric promotes air circulation, effectively preventing moisture buildup inside the mattress, reducing the risk of mold, and providing users with a healthier and more comfortable sleeping environment. At the same time, users can visually see the internal structure through the mesh, increasing product transparency and credibility. The hexagonal mesh structure ensures breathability while enhancing the inner cover's tear resistance and structural stability, preventing mesh deformation due to prolonged use.
[0033] Furthermore, such as Figure 6 As shown, the inner sleeve 103 is made by directly sewing together the top mesh 1031 and the bottom mesh 1032. In order to facilitate the user to inspect or replace the edge protection assembly 102 and the core 101, a zipper 1033 is provided on the top mesh 1031 or the bottom mesh 1032 so that the inner sleeve 103 can be opened and closed quickly.
[0034] Example 2: This embodiment provides a glue-free mattress, such as... Figure 10 As shown, it includes a glue-free core 1, a top layer 2, a bottom layer 3, an outer sheath, and a filling layer 4, as described in Embodiment 1. The top layer 2, filling layer 4, glue-free core 1, and bottom layer 3 are arranged sequentially from top to bottom, and the outer sheath surrounds the filling layer and the glue-free core 1.
[0035] In this embodiment, the filling layer 4 is a sponge layer, which is placed above the glue-free mattress core 1, which can further improve the comfort of the mattress and enhance the user's sleep experience.
[0036] Unlike traditional mattresses, all components of the mattress provided in this embodiment are connected without glue, which avoids the problem of adhesive parts falling off due to glue aging and prevents harmful gases released by glue from polluting indoor air, thus improving the environmental friendliness and durability of the mattress.
[0037] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A glue-free bed core (1), characterized in that, It includes a core (101), a protective edge structure (102) surrounding the core (101), and an inner sleeve (103) covering the core (101) and the protective edge structure (102). The edge protection structure (102) includes two pairs of edge protection components (1021), which are connected by mortise and tenon joints to fix and protect the core (101).
2. The glue-free bed core (1) according to claim 1, characterized in that, One pair of edge protection components (1021) has grooves (1022) at both ends, and the other pair of edge protection components (1021) has tenons (1023) at both ends that match the grooves (1022). The two pairs of edge protection components (1021) are connected to the grooves (1022) through the tenons (1023) to form the edge protection structure (102).
3. The glue-free bed core (1) according to claim 1 or 2, characterized in that, The edge protection structure (102) is made of high-density, high-hardness sponge, wherein the density of the sponge is greater than or equal to 30 kg / m3 and the hardness of the sponge is greater than or equal to 200 N.
4. The glue-free bed core (1) according to claim 1, characterized in that, The core (101) is a spring core, which is composed of several parallel spring strings.
5. The glue-free bed core (1) according to claim 4, characterized in that, The spring string is a bagged spring string, each bagged spring string includes several bagged springs (1011) arranged in a straight line, each bagged spring (1011) has an extended welded portion (1012) on the outside, and the welded portions (1012) of adjacent bagged springs (1011) are welded together by ultrasonic welding.
6. The glue-free bed core (1) according to claim 1, characterized in that, The inner sleeve (103) is made of breathable mesh fabric.
7. The glue-free bed core (1) according to claim 6, characterized in that, The inner sleeve (103) has a hexagonal grid.
8. The glue-free bed core (1) according to claim 6 or 7, characterized in that, The inner sleeve (103) includes a top mesh (1031) and a bottom mesh (1032), and a zipper (1033) is provided on the top mesh (1031) or the bottom mesh (1032).
9. A glue-free mattress, characterized in that, Includes the glue-free bed core (1) as described in any one of claims 1 to 8 and an outer cover covering the glue-free bed core (1); the outer cover includes an upper layer (2), a lower layer (3) and an outer cover edge connecting the upper layer (2) and the lower layer (3); the upper layer (2), the glue-free bed core (1) and the lower layer (3) are arranged sequentially from top to bottom.
10. The glue-free mattress according to claim 9, characterized in that, A filling layer (4) is provided between the top layer (2) and the glue-free bed core (1), and the material of the filling layer (4) is sponge.