A fully sealed pillow and pillowcase kit
By using a fully sealed pillow core design and replacing the sewing process with a welding process, a seamless seal is achieved, solving the problem of dirt accumulating in the pinholes of traditional pillow cores. This improves the hygiene and ease of cleaning of the pillow core, making it especially suitable for people with allergies.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN DERUCCI BEDDING CO LTD
- Filing Date
- 2025-09-10
- Publication Date
- 2026-08-04
AI Technical Summary
Current pillow cores are made by stitching together, and dirt easily accumulates in the needle holes, affecting sleep hygiene and health, especially for people with allergies.
The pillow features a fully sealed core design, where the edges of the pillow top and bottom fabrics are welded together to form a sealed cavity. An elastic support component is installed inside the cavity. The welding process replaces the traditional sewing process, achieving a seamless, pore-free seal.
It completely eliminates the continuous micropores left by sewing needles and threads, blocking the intrusion of dust, sweat, dander and microorganisms, preventing the accumulation of internal dirt, improving the hygiene and ease of cleaning of the pillow core, reducing the risk of odor, and is especially suitable for people with allergies.
Smart Images
Figure CN224584534U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bedding technology, and in particular to a fully sealed pillow core and pillow set. Background Technology
[0002] Pillows, as everyday household necessities, typically consist of a top fabric, elastic support components, and a bottom fabric sewn together using a sewing process. Traditional sewing relies on needles and thread penetrating the materials to create connections. While low-cost and efficient, this process creates continuous micropores at the stitches. These pores become channels for dust, sweat, dander, and microorganisms to enter, leading to the accumulation of dirt over time. This not only makes thorough cleaning difficult but can also cause odors and bacterial growth, affecting sleep hygiene and health. This problem is particularly pronounced for people with allergies.
[0003] Therefore, existing pillow cores need to be improved to address the problem that dirt easily accumulates at the needle holes due to their stitching process.
[0004] The information disclosed in this background section is included only to enhance the understanding of the context of this disclosure, and therefore may contain information that does not constitute prior art known to those skilled in the art. Utility Model Content
[0005] One objective of this invention is to provide a fully sealed pillow core and pillow kit, which can solve the problem that dirt easily accumulates at the needle holes of existing pillow cores that are spliced together by sewing.
[0006] To achieve the above objectives, on the one hand, this utility model provides a fully sealed pillow core, including a pillow top fabric and a pillow bottom fabric located below the pillow top fabric, wherein the edge areas of the pillow top fabric and the pillow bottom fabric are fused together to form a sealed accommodating cavity.
[0007] The accommodating cavity is provided with an elastic support component for providing upward elastic support to the pillow top fabric. The top surface of the elastic support component is fused to the bottom surface of the pillow top fabric, and the bottom surface of the elastic support component is fused to the top surface of the pillow bottom fabric.
[0008] Optionally, the welding includes thermoforming and / or ultrasonic welding.
[0009] Optionally, the elastic support assembly includes a support body laid flat within the accommodating cavity, wherein the support stiffness is different between adjacent support bodies.
[0010] Optionally, the elastic support assembly further includes a separator that is welded to the pillow top fabric and the pillow bottom fabric respectively;
[0011] The partition includes several crisscrossing longitudinal and transverse portions, each of the longitudinal and transverse portions dividing the accommodating cavity into several independent sub-cavities, and each of the independent sub-cavities is provided with a supporting body.
[0012] Optionally, each of the independent sub-cavities is arranged in a 3x3 grid pattern, with three rows and three columns, where...
[0013] The independent sub-cavities in the first row are, in order, the first shoulder and neck support area, the neck support low pillow area, and the second shoulder and neck support area;
[0014] The independent sub-cavities in the second row are, in order, the first lateral sleeping auxiliary area, the fossa support area, and the second lateral sleeping auxiliary area;
[0015] The independent sub-cavities in the third row are, in order, the first side-sleeping support area, the neck support high pillow area, and the second side-sleeping support area.
[0016] Optionally, the support bodies in the first and second side-sleeping assistance areas are air bladders, while the support bodies in the remaining independent sub-cavities are TPU particles.
[0017] Optionally, the TPU particles in the neck support high pillow area have a harder hardness than the TPU particles in the other individual sub-cavities.
[0018] Optionally, the TPU particles in the two shoulder and neck support areas are less hard than the TPU particles in the other individual sub-cavities.
[0019] Optional,
[0020] Each of the shoulder and neck support areas and the corresponding side-sleeping support areas arches toward the corresponding side-sleeping auxiliary area, so that both side-sleeping auxiliary areas have a narrowing structure in the middle.
[0021] One side of the fossa support area faces the low occipital region of the neck support arch, and the other side faces the high occipital region of the neck support arch, to form a central outward expansion structure.
[0022] On the other hand, a pillow kit is provided, including any of the described fully sealed pillow cores and a removable and washable pillowcase fitted over the fully sealed pillow core.
[0023] The beneficial effects of this utility model are as follows: It provides a fully sealed pillow core and pillow kit, wherein the edge areas of the pillow top fabric and the pillow bottom fabric, the top surface of the pillow top fabric and the elastic support component, and the bottom surface of the pillow bottom fabric and the elastic support component are all fused together. The connecting surfaces are fused at the molecular level to form a continuous, pore-free sealed seam, completely eliminating the continuous micropores left by sewing needles and threads. This physical barrier can effectively prevent dust, sweat, dander, and microorganisms from invading the cavity from the outside, while preventing the internal filling from overflowing.
[0024] Therefore, the fully sealed pillow core and pillow kit provided by this utility model can solve the problem that dirt easily accumulates at the needle holes of existing pillow cores which are spliced together by sewing. Attached Figure Description
[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0026] Figure 1 An exploded view of the fully sealed pillow core provided for this embodiment;
[0027] Figure 2 A front view of the fully sealed pillow core provided for the embodiment;
[0028] Figure 3 This is a side view of the fully sealed pillow core provided for an embodiment.
[0029] In the picture:
[0030] 1. Pillow top fabric;
[0031] 2. Pillow bottom fabric;
[0032] 3. Dividers;
[0033] 4. First shoulder and neck support area; 5. Neck support low pillow area; 6. Second shoulder and neck support area;
[0034] 7. First side-sleeping support area; 8. Fossa support area; 9. Second side-sleeping support area;
[0035] 10. First side-sleeping support area; 11. Neck support high pillow area; 12. Second side-sleeping support area. Detailed Implementation
[0036] In this utility model, the reference to "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment can be included in at least one embodiment of this utility model. The term "embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment, nor does it specifically limit its independence or connection with other embodiments. In principle, in this utility model, as long as there are no technical contradictions or conflicts, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.
[0037] Unless otherwise defined, the technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the use of related terms herein is merely for the purpose of describing particular embodiments and is not intended to limit the invention.
[0038] In the description of this utility model, the term "and / or" is used to describe the logical relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A exists, B exists, and A and B exist simultaneously. Additionally, the character " / " generally indicates that the preceding and following objects have an "or" logical relationship.
[0039] In this invention, terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any actual quantity, hierarchy, or order between these entities or operations.
[0040] Without further limitations, the use of terms such as “comprising,” “including,” “having,” or other similar expressions in this invention is intended to cover non-exclusive inclusion, which does not exclude the presence of additional elements in a process, method, or product that includes the stated elements, such that a process, method, or product that includes a series of elements may include not only those defined elements but also other elements not expressly listed, or elements inherent to such a process, method, or product.
[0041] Similar to the understanding in the Examination Guidelines, in this utility model, expressions such as "greater than," "less than," and "exceeding" are understood to exclude the stated number; expressions such as "above," "below," and "within" are understood to include the stated number. Furthermore, in the description of the embodiments of this utility model, "multiple" means two or more (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups" and "multiple times," unless otherwise explicitly specified.
[0042] In the description of the embodiments of this utility model, the space-related expressions used, such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "vertical," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," indicate the orientation or positional relationship based on the orientation or positional relationship shown in the specific embodiments or drawings. They are only for the convenience of describing the specific embodiments of this utility model or for the reader's understanding, and do not indicate or imply that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model.
[0043] Unless otherwise expressly specified or limited, the terms "installation," "connection," "linking," "fixing," and "setting," as used in the description of the embodiments of this utility model, should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two components or the interaction between two components. For those skilled in the art to which this utility model pertains, the specific meaning of the above terms in the embodiments of this utility model can be understood according to the specific circumstances.
[0044] The direct drive mechanism in this invention can be a linear motor, a cylinder, a hydraulic cylinder, or a motor lead screw and slider assembly, etc.; the rotary drive mechanism can be a servo motor, a stepper motor, or a rotary cylinder, etc.
[0045] This utility model provides a pillow kit that solves the problem that dirt easily accumulates at the needle holes of existing pillow cores, which are spliced together by sewing.
[0046] The pillow set includes a fully sealed pillow core and a removable, washable pillowcase that covers the fully sealed pillow core. See also Figure 1 A fully sealed pillow core includes a pillow top fabric 1 and a pillow bottom fabric 2 located below the pillow top fabric 1. The edge areas of the pillow top fabric 1 and the pillow bottom fabric 2 are fused together to form a sealed accommodating cavity.
[0047] The accommodating cavity is provided with an elastic support component for providing upward elastic support to the pillow top fabric 1. The top surface of the elastic support component is fused to the bottom surface of the pillow top fabric 1, and the bottom surface of the elastic support component is fused to the top surface of the pillow bottom fabric 2.
[0048] The fully sealed pillow core provided by this utility model uses a welding process to replace the traditional sewing process, which fundamentally solves the problem of dirt accumulation and microbial invasion caused by the presence of pinholes.
[0049] Specifically, the pillow top fabric 1, pillow bottom fabric 2, and elastic support components are all welded together in pairs, with the connecting surfaces fused at the molecular level to form a continuous, pore-free sealed seam, completely eliminating the continuous micropores left by the sewing needle and thread. This physical barrier effectively prevents dust, sweat, dander, and microorganisms from invading the cavity from the outside, while also preventing the internal filling from overflowing.
[0050] Because of its seamless structure, the fully sealed pillow core prevents contaminants from accumulating in the internal elastic support components through the stitching channels during daily use, significantly improving hygiene. This fully sealed design not only blocks the growth environment of allergens and bacteria, reducing the risk of odor, but also makes the surface of the pillow core easy to clean and wipe, making maintenance more convenient. Especially for people with allergies, this design reduces contact with potential allergens, enhancing sleep health and safety.
[0051] In summary, the fully sealed pillow core provided by this utility model achieves seamless connection between materials through welding, ensuring the structural stability of the pillow core while creating a highly sealed internal environment. This effectively addresses the hygiene defects caused by traditional sewing processes, combining practicality and health benefits.
[0052] In this embodiment, the elastic support assembly includes support bodies laid flat within the accommodating cavity, wherein adjacent support bodies have different support stiffness. By placing support bodies with different support stiffnesses at different positions, the pillow core's zoned support function is achieved.
[0053] Furthermore, the elastic support assembly also includes a separator 3 that is welded to the pillow top fabric 1 and the pillow bottom fabric 2 respectively;
[0054] The partition 3 includes several crisscrossing longitudinal and transverse portions, each of the longitudinal and transverse portions dividing the accommodating cavity into several independent sub-cavities, and each of the independent sub-cavities is provided with a supporting body.
[0055] Optionally, each of the independent sub-cavities is arranged in a 3x3 grid pattern, with three rows and three columns, where...
[0056] The independent sub-cavities in the first row are, in order, the first shoulder and neck support area 4, the neck support low pillow area 5, and the second shoulder and neck support area 6.
[0057] The independent sub-cavities described in the second row are, in order, the first lateral sleeping auxiliary area 7, the fossa support area 8, and the second lateral sleeping auxiliary area 9;
[0058] The independent sub-cavities in the third row are, in order, the first side-sleeping support area 10, the neck support high pillow area 11, and the second side-sleeping support area 12.
[0059] In this embodiment, the support bodies in the first side sleeping assistance area 7 and the second side sleeping assistance area 9 are all air bladders, and the support bodies in the other independent sub-cavities are all TPU particles.
[0060] The TPU particles in the neck support high pillow area 11 are harder than the TPU particles in the other independent sub-cavities.
[0061] The TPU particles in the two shoulder and neck support areas are less hard than the TPU particles in the other independent sub-cavities.
[0062] The nine-grid partition structure provided in this embodiment has the following advantages:
[0063] (1) Fossa support area 8 (independent subcavity in the middle of the second row)
[0064] Located at the center of the fully sealed pillow core, this area is designed with a slightly concave curved surface that perfectly conforms to the natural curvature of the head, based on the shape and weight distribution of the human head. Filled with soft TPU particles, it provides gentle and even support when the head sinks in, effectively distributing the weight of the head, avoiding concentrated pressure in certain areas, and improving sleep comfort.
[0065] (2) First side sleeping auxiliary area 7 and second side sleeping auxiliary area 9 (independent sub-cavities on both sides of the second row)
[0066] When sleeping on your side, the partition 3 (made of TPU) between the fossa support area 8 and the side sleeping auxiliary area provides the main support, while the main support body in the side sleeping support area provides auxiliary support. Therefore, the side sleeping auxiliary area can be equipped with a low-hardness airbag. The low hardness can provide space for the facial muscles to move and prevent wrinkles caused by compression.
[0067] (3) Neck support high pillow area 11 (third row middle independent sub-cavity)
[0068] The neck support high pillow area 11 is distributed in a long strip shape. Its width, height, and curvature are designed according to the physiological curvature of the human cervical spine. It gradually rises from the fossa support area 8 towards the neck, forming a natural upward "C" shaped curve. This area is filled with high-hardness TPU particles to provide upward support for the neck, maintain the normal physiological curvature of the cervical spine, reduce the burden on the neck muscles, and help prevent and relieve neck pain and fatigue with long-term use.
[0069] (4) Neck support low pillow area 5 (independent sub-cavity in the middle of the first row)
[0070] The neck support low pillow area 5 is elongated and its height is designed to match shoulder width (especially the vertical distance from the acromion to the cervical spine). This fills the "drop" between the neck and the bed, keeping the cervical spine in a neutral position parallel to the torso and preventing excessive tension in one side's muscles. It is especially suitable for people with narrow shoulders or those who prefer to sleep on their side. This area is filled with soft TPU particles, making the support in the low pillow area lighter and reducing pressure on neck blood vessels and nerves. At the same time, by distributing pressure (rather than concentrating support), it reduces local muscle tension and improves sleep tolerance.
[0071] (5) First shoulder and neck support area 4 and second shoulder and neck support area 6 (independent sub-cavities on both sides of the first row)
[0072] The first and second shoulder and neck support zones 4 and 6 are located on both sides of the fully sealed pillow core. Designed to address the pressure on the shoulders and neck when lying on your back or side, the top surface of these zones is angled or concave, providing sufficient space to accommodate the shoulders and reduce shoulder compression. Simultaneously, additional support is provided on the sides of the neck to maintain the straightness of the cervical spine in the side-lying position and prevent twisting. Filled with soft TPU particles, it combines support and cushioning, effectively distributing pressure when sleeping on your side.
[0073] (6) First Side-Sleeping Support Area 10 and Second Side-Sleeping Support Area 12 (Separate Sub-cavities on Both Sides of the Third Row) The first side-sleeping support area 10 and the second side-sleeping support area 12 are located on both sides of the pillow. By matching the physiological difference in shoulder and neck height when lying on one's side, the cervical spine can remain natural in the lateral position. When lying on one's side, the side of the neck needs to be supported to distribute pressure. The top surface curvature of the side-sleeping support area is usually designed to match the curve of the side of the neck. This not only supports the neck to prevent it from being suspended, but also prevents local blood circulation from being obstructed due to excessive pressure. It is especially suitable for people with sensitive necks or superficial blood vessels.
[0074] In this embodiment, see Figure 2 and Figure 3 Each of the shoulder and neck support areas and the corresponding side-sleeping support areas arches toward the corresponding side-sleeping auxiliary areas, so that both side-sleeping auxiliary areas have a narrowing structure in the middle, thereby enhancing the feeling of being wrapped up when sleeping on your side.
[0075] One side of the fossa support area 8 faces the convex arch of the low neck support area 5, and the other side faces the convex arch of the high neck support area 11, so as to form a central outward expansion structure, thereby increasing the support area of the fossa support area 8.
[0076] In this embodiment, the welding includes hot-press welding and / or ultrasonic welding.
[0077] I. The steps for hot pressing and welding are as follows:
[0078] (1) Weld the separator 3 to the pillow bottom fabric 2;
[0079] (2) Place the supporting body into the central fossa support area 8;
[0080] (3) The upper edge of the part of the partition 3 that forms the fossa support area 8 is heat-pressed and fused to the pillow top fabric 1.
[0081] (4) Place the corresponding support body into the remaining areas (test the air tightness of the airbag before placing it in).
[0082] (5) The remaining parts of the divider 3 are hot-pressed and welded to the pillow top fabric 1;
[0083] (6) Complete the hot pressing and welding between the pillow top fabric 1 and the pillow bottom fabric 2.
[0084] II. The steps for ultrasonic welding are relatively simple:
[0085] (1) Place the divider 3 on the pillow bottom fabric 2;
[0086] (2) Insert the corresponding support body into each independent sub-cavity (test the air tightness of the airbag before inserting it);
[0087] (3) Place the pillow top fabric 1 on the divider 3;
[0088] (4) Start the ultrasonic welding equipment. The vibration energy of the ultrasonic waves is transmitted through the pillow top fabric 1 to the interface between it and the top surface of the separator 3, and the interface between the pillow bottom fabric 2 and the bottom surface of the separator 3. At the same time, it acts on the overlapping area of the edges of the pillow top fabric 1 and the pillow bottom fabric 2. Friction generates heat, causing the thermoplastic materials at each interface to melt instantly.
[0089] In summary, the fully sealed pillow core and pillow set provided in this embodiment have the following advantages:
[0090] ① The fully sealed structure is achieved by using a welding process, which completely eliminates sewing needle holes and prevents dirt and microorganisms from entering.
[0091] ② The side-sleeping support area has built-in airbags to provide soft cushioning and prevent face compression.
[0092] ③ The independent sub-cavity design prevents the support material from shifting, ensuring structural stability and functional consistency during long-term use.
[0093] Finally, it should be noted that although the above embodiments have been described in the text and drawings of this application, this should not limit the scope of patent protection of this application. Any technical solutions that are based on the essential concept of this application and utilize the content described in the text and drawings of this application, resulting in equivalent structural or procedural substitutions or modifications, as well as the direct or indirect application of the technical solutions of the above embodiments to other related technical fields, are all included within the scope of patent protection of this application.
Claims
1. A fully sealed pillow, characterized in that, It includes a pillow top fabric (1) and a pillow bottom fabric (2) located below the pillow top fabric (1), wherein the edge areas of the pillow top fabric (1) and the pillow bottom fabric (2) are welded together to form a closed accommodating cavity. The cavity is provided with an elastic support component for providing upward elastic support to the pillow top fabric (1). The top surface of the elastic support component is fused to the bottom surface of the pillow top fabric (1), and the bottom surface of the elastic support component is fused to the top surface of the pillow bottom fabric (2).
2. The fully enclosed pillow of claim 1, wherein, The welding includes hot-press welding and / or ultrasonic welding.
3. The totally enclosed pillow of claim 1 wherein, The elastic support assembly includes a support body laid flat within the accommodating cavity, wherein the support hardness is different between adjacent support bodies.
4. The totally enclosed pillow of claim 3, wherein, The elastic support assembly also includes a separator (3) that is welded to the pillow top fabric (1) and the pillow bottom fabric (2) respectively. The separator (3) includes several longitudinal and transverse sections, each of which divides the accommodating cavity into several independent sub-cavities, and each of the independent sub-cavities is provided with a supporting body.
5. The fully enclosed pillow of claim 4, wherein, Each of the aforementioned independent sub-cavities is arranged in a 3x3 grid pattern, with three rows and three columns, where, The independent sub-cavities in the first row are, in order, the first shoulder and neck support area (4), the neck support low pillow area (5), and the second shoulder and neck support area (6). The independent sub-cavities in the second row are, in order, the first side-sleeping auxiliary area (7), the fossa support area (8), and the second side-sleeping auxiliary area (9). The independent sub-cavities in the third row are, in order, the first side-sleeping support area (10), the neck support high pillow area (11), and the second side-sleeping support area (12).
6. The totally enclosed pillow of claim 5, wherein, The support bodies in the first side-sleeping assistance area (7) and the second side-sleeping assistance area (9) are all air bladders, while the support bodies in the remaining independent sub-cavities are all TPU particles.
7. The fully enclosed pillow of claim 6, wherein, The TPU particles in the neck support high pillow area (11) are harder than the TPU particles in the other independent sub-cavities.
8. The totally enclosed pillow of claim 6, wherein, The TPU particles in the two shoulder and neck support areas are less hard than the TPU particles in the other independent sub-cavities.
9. The fully sealed pillow core according to claim 5, characterized in that, Each of the shoulder and neck support areas and the corresponding side-sleeping support areas arches toward the corresponding side-sleeping auxiliary area, so that both side-sleeping auxiliary areas have a narrowing structure in the middle. The fossa support area (8) has a convex arch on one side facing the low cervical support area (5) and a convex arch on the other side facing the high cervical support area (11) to form a central outward expansion structure.
10. A pillow kit comprising a fully sealed pillow core as described in any one of claims 1-9, and a removable and washable pillowcase fitted over the fully sealed pillow core.