Pillow core and pillow set

Abstract

To provide a pillow core and pillow set which can provide stronger support to the neck to maintain the angle of healthy physiological curvature of the cervical spine, and at the same time provide a flexible wrap for the head to distribute pressure and realize accurate segmental support, and which has an ergonomic design. [Solution] The pillow core includes a flexible layer 1, a support layer 2, and a pressure-resistant layer 3, which are stacked in sequence in the thickness direction, and the hardness of the flexible layer, support layer, and pressure-resistant layer increases in sequence. The flexible layer is the upper layer of the pillow core, and the pillow core has a neck support region A and a head fossa region B along its width direction, with the hardness of the neck support region being greater than that of the head fossa region. In the neck support region, the pressure-resistant layer and the support layer both protrude toward one side of the flexible layer, and in the head fossa region, the flexible layer and the support layer protrude toward one side of the pressure-resistant layer.

Description

[Technical Field]

[0001] The present invention relates to the technical field of pillows, and more particularly to pillow cores and pillow sets. [Background technology]

[0002] Sleep quality is closely related to human health, and pillows are an important sleep aid, and their comfort and support are extremely important in maintaining a healthy cervical spine curvature.

[0003] Pillows on the market today generally have the problem that, when made of a single material, it is difficult to achieve both comfort and support. For example, a pillow made of a material that is too soft can provide a relatively good initial comfort, but lacks support for the head and neck, causing the head to sink excessively and causing the cervical vertebrae to float in the air or bend improperly. A pillow made of a material that is too hard can provide sufficient support, but is uncomfortable and is likely to put pressure on the head, affecting the depth of sleep.

[0004] The applicant has found that the prior art has at least the following technical problems: the hardness of the pillows in the prior art is consistent, or the hardness setting lacks a systematic gradient plan, so the mechanical performance of the entire pillow core is still insufficient, and it is difficult to achieve an ideal balance between providing a soft, enveloping feeling and providing stable support, and users may experience problems such as insufficient cervical spine support or uneven pressure distribution when sleeping. Summary of the Invention [Means for solving the problem]

[0005] The purpose of this invention is to provide a pillow core and pillow set that solves the technical problem that the hardness of the pillow core in various parts of the prior art is uniform, making it difficult to provide the necessary support for the cervical spine. The details of the many technical effects that can be produced by the preferred technical solutions among the many technical solutions provided by this invention are described below.

[0006] To achieve the objectives of the present invention, the present invention provides a lifting platform for bridge construction to improve the above problems.

[0007] In order to achieve the above object, the present invention provides the following technical solutions: The pillow core provided by the present invention includes a flexible layer, a support layer, and a pressure-resistant layer laminated in the thickness direction, The hardness of the soft layer, the support layer, and the pressure-resistant layer increases in sequence, and the soft layer serves as the upper layer of the pillow core. The pillow core has a neck support region and a head cavity region along its width direction, the hardness of the neck support region is greater than the hardness of the head cavity region, and in the neck support region, the pressure-resistant layer and the support layer both protrude toward one side of the soft layer, and in the head cavity region, the soft layer and the support layer protrude toward one side of the pressure-resistant layer.

[0008] Preferably, the support layer has a support ridge, the pressure-resistant layer has a pressure-resistant ridge, the support ridge and the pressure-resistant ridge are both located in the neck support area, and the support ridge and the pressure-resistant ridge both protrude toward one side of the flexible layer.

[0009] Preferably, the support layer has a support recess, the pressure-resistant layer has a pressure-resistant recess, the support recess and the pressure-resistant recess are both located in the fossa region, and the flexible layer extends toward the support recess at a position corresponding to the fossa region.

[0010] Preferably, when not subjected to pressure, the upper surface of the flexible layer and the lower surface of the pressure-resistant layer are both planar.

[0011] Preferably, the soft layer has an enveloping portion, the enveloping portion having an arc structure, the enveloping portion being located on the pillow core and on the side that contacts the neck, and the enveloping portion being covered on the outside of the support layer and in direct contact with the pressure-resistant layer.

[0012] Preferably, the flexible layer, the support layer and the pressure-resistant layer are all made of polyurethane memory foam material, and the material density of the pressure-resistant layer is greater than the material density of the flexible layer; Preferably, the hardness of the soft layer, the support layer, and the pressure-resistant layer increases in this order.

[0013] Preferably, the pillow core has a pressure reducing region on the side opposite to the neck support region, and the pressure reducing region, the soft layer, the support layer and the pressure resistant layer have thicknesses that are equal or unequal.

[0014] Preferably, the pressure-resistant layer has a plurality of ventilation holes on its upper surface.

[0015] The present invention further provides a pillow set, It includes a pillowcase and the pillow core positioned within the pillowcase.

[0016] Preferably, the pillow covers corresponding to the upper and lower surfaces of the pillow core are made of different materials; A marking stitch is provided at one end of the pillow cover, and the routing direction of the marking stitch matches the orientation of the pressure-resistant layer or the neck support area so that the user can identify the neck support area. [Effects of the Invention]

[0017] The pillow core and pillow set provided by the present invention have the following beneficial effects compared with the prior art: By using at least three pillow core layers with increasing hardness from top to bottom, the upper layer of the pillow core is flexible to provide a comfortable, enveloping feeling and pressure relief, while the lower layer is firm to provide stable support and prevent excessive head sinking, thereby achieving a balance between comfort and support, achieving a unified combination of flexibility, comfort, and stable support. Next, the pillow core is divided into a neck support region and a head cavity region, and a localized plastic structure is used to make the neck support region more supportive than the head cavity region, providing stronger support for the neck to maintain the healthy physiological curvature of the cervical spine. At the same time, the pillow core provides a flexible envelopment for the head to distribute pressure and achieve precise support in different regions, resulting in an ergonomic design that is conducive to improving sleep quality. Furthermore, the use of a multi-layer structure, with a particularly high-density, high-hardness material in the bottom layer, provides a stable foundation for the entire pillow core, making the structure stable and durable, effectively resisting permanent deformation due to long-term use, and extending the service life of the product. [Brief explanation of the drawings]

[0018] In order to more clearly describe the technical aspects of the embodiments of the present invention or the prior art, the following briefly describes the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention, and those skilled in the art can also obtain other drawings based on these drawings without paying creative labor. [Figure 1] 1 is a schematic diagram of the structure of a pillow core. [Figure 2] FIG. 1 is a schematic diagram of the local structure of a pillow core. [Figure 3] This is a schematic diagram of the exploded structure of the pillow core. [Figure 4] This is a schematic diagram of the pillow core when in use. [Figure 5] FIG. 2 is a schematic diagram of the structure of one end of the pillowcase. DETAILED DESCRIPTION OF THE INVENTION

[0019] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention will be described in detail below. Obviously, the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the examples in the present invention, all other embodiments that can be obtained by those skilled in the art without creative work belong to the scope protected by the present invention.

[0020] In describing the present invention, any orientation or positional relationship indicated by the terms "center," "length," "width," "height," "top," "bottom," "front," "back," "left," "right," "vertical," "horizontal," "upper," "bottom," "inner," "outer," "side," etc., is based on the orientation or positional relationship shown in the drawings and is intended solely to facilitate the description of the present invention, and does not indicate or imply that the referred device or element must be constructed or operated in a particular orientation or in a particular direction, and therefore should not be understood as a limitation on the present invention. In describing the present invention, unless otherwise specified, "plurality" means two or more.

[0021] In describing the present invention, unless otherwise clearly specified and limited, the terms "setting," "mounting," "connecting," and "connection" should be understood in a broad sense. For example, they may refer to a fixed connection, a detachable connection, or an integral connection. They may also refer to a mechanical connection, an electrical connection, a direct connection, an indirect connection via an intermediate medium, or an internal connection between two elements. Those skilled in the art can specifically understand the specific meanings of the above terms in the present invention.

[0022] The present invention provides a pillow core and pillow assembly with a sectional support function to provide healthy physiological support for the cervical spine while satisfying the user's sleeping comfort needs. The technical solution provided by the present invention will be described in more detail below with reference to FIG.

[0023] Example 1 As shown in Figures 1 to 3, the pillow core provided by this invention comprises a flexible layer 1, a support layer 2, and a pressure-resistant layer 3, which are laminated in sequence in the thickness direction. These three layers are fixedly connected by bonding with an environmentally friendly adhesive or by integral foam molding, forming a stable, organic whole. The hardness of the flexible layer 1, support layer 2, and pressure-resistant layer 3 increases sequentially. The flexible layer 1 is the upper layer of the pillow core. The pillow core has a neck support region A and a head cavity region B along its width direction. The hardness of the neck support region A is greater than that of the head cavity region B. In the neck support region A, the pressure-resistant layer 3 and support layer 2 both protrude toward one side of the flexible layer 1, while in the head cavity region B, the flexible layer 1 and support layer 2 protrude toward one side of the pressure-resistant layer 3.

[0024] The pillow core as a whole presents an undulating contour that conforms to ergonomic design. Along the width of the pillow core, that is, along the direction extending from the head to the neck when the user is lying down, the pillow core is divided into two main functional areas: neck support area A, which effectively supports the user's neck, and head fossa area B, which comfortably accommodates and distributes pressure on the user's head. From a morphological perspective, the overall height of neck support area A is higher than head fossa area B, forming a "high neck, low head" structure that provides the structural foundation for effective support for the cervical spine and comfortable envelopment of the head.

[0025] The hardness of the soft layer 1, support layer 2, and pressure-bearing layer 3 increases sequentially. This gradient hardness structure creates a vertical mechanical performance distribution of the pillow core, with a "soft top, hard bottom" design. When the user places their head and neck on the pillow, they first contact the top soft layer 1, whose low hardness provides excellent initial comfort and a soft, enveloping experience, effectively cushioning and dispersing localized pressure. As the weight of the head and neck continues to press down, the middle support layer 2 begins to exert its supportive function. Its higher hardness provides preliminary support to prevent excessive head collapse. The bottom pressure-bearing layer 3, with the highest hardness of the three layers, provides the final, firmest support as the foundation of the entire pillow core, ensuring stable support for the user's neck at a preset healthy height and avoiding the problem of the cervical vertebrae floating in the air due to insufficient support in traditional soft pillows.

[0026] The flexible layer 1, support layer 2, and pressure-bearing layer 3 are all made of polyurethane memory foam. Adjusting the foaming process parameters, such as the raw material mix ratio and expansion ratio, allows for the creation of memory foam with different physical properties. For example, the flexible layer 1 can be made of memory foam with a density of 40 kg / m3 and a 40% compression hardness of 10 Newtons. The support layer 2 can be made of memory foam with a similar density of 40 kg / m3 but a 40% compression hardness of 16 Newtons. The pressure-bearing layer 3 can be made of memory foam with a density of 45 kg / m3 and a 40% compression hardness of 20 Newtons. With these parameters, the hardness values ​​of the three layers strictly follow a top-down increasing rule (10N < 16N < 20N). Furthermore, placing the densest pressure-bearing layer 3 at the bottom also enhances the structural stability and fatigue resistance of the pillow core, effectively resisting permanent deformation and collapse that may occur after long-term use and extending the product's service life.

[0027] In addition to the vertical hardness gradient design, this embodiment achieves horizontal support in different regions by partially plastically shaping the pillow core layer. As shown in Figures 1 to 3, the support layer 2 has a support ridge 21, and the pressure-resistant layer 3 has a pressure-resistant ridge 31. Both the support ridge 21 and the pressure-resistant ridge 31 are located in the neck support region A, and both the support ridge 21 and the pressure-resistant ridge 31 protrude toward one side of the flexible layer 1.

[0028] The pressure-resistant ridges 31 and the support ridges 21 are overlapping and aligned approximately vertically, and together form the internal support core of the neck support area A. When the user leans on the neck pillow at this time, these two protrusions, especially the protrusions of the hard support layer 2 and the hardest pressure-resistant layer 3, provide a strong and concentrated support force, actively filling the physiological gap between the cervical spine and the mattress.

[0029] As an optional embodiment, as shown in Figures 1 to 3, the support layer 2 has a support recess 22, the pressure-resistant layer 3 has a pressure-resistant recess 32, the support recess 22 and the pressure-resistant recess 32 are both located in the fossa region B, and the flexible layer 1 extends at a position corresponding to the fossa region B toward the support recess 22.

[0030] Preferably, when not subjected to pressure, the upper surface of the flexible layer 1 and the lower surface of the pressure-resistant layer 3 are both planar.

[0031] On the other hand, in the region corresponding to the fossa region B, the support layer 2 is plasticized downward (i.e., toward the pressure-resistant layer 3) to form a support recess 22 in order to form a comfortable head-accommodating space. This support recess 22 reduces the thickness of the middle part of the fossa region B, relatively weakening the support force. Due to the flexibility of its material, the uppermost flexible layer 1 is naturally coated on the plasticized support layer 2 and conforms to its contour, so that a recessed fossa-like shape is also formed in the fossa region B.

[0032] As shown in Figure 4, when the user lies on their back, their neck falls exactly onto the neck support area A, which is supported by both the support ridge 21 and the anti-pressure ridge 31. At this time, the cervical vertebrae receive sufficient support that conforms to their natural physiological curvature, avoiding dangling or pressure due to insufficient support. At the same time, the user's occipital region comfortably fits into the head socket area B formed by the flexible layer 1 and the support recess 22. Because the support force of the head socket area B is relatively weak and provides a feeling of envelopment, head pressure is evenly distributed over a larger contact area, preventing the formation of high-pressure points at the occipital region and improving comfort.

[0033] The structure combining the gradient hardness and local plasticity allows the pillow core of this embodiment to achieve both comfort and support, whereby the pillow core can provide a soft, enveloping feeling and firm support, and the segmented design precisely applies these two characteristics to the appropriate areas (for example, the head area provides soft envelopment, and the skull cavity area provides firm support), thereby achieving scientific and healthy support for the head and neck, improving sleep quality and helping to prevent cervical spine problems.

[0034] In a preferred embodiment, to further improve the comfort of use, the pressure-resistant layer has a number of ventilation holes on the upper surface, as shown in Figure 3. These ventilation holes 33 promote air circulation inside the pillow core, effectively releasing heat and moisture generated by the human body during sleep, improving the feeling of stuffiness and keeping the pillow core dry and clean.

[0035] As an optional embodiment, as shown in Figures 1 to 3, the flexible layer 1 has an enveloping portion 11, which has an arc structure, and is located on the side of the pillow core that contacts the neck, and the enveloping portion 11 is covered on the outside of the support layer 2 and directly contacts the pressure-resistant layer 3.

[0036] With the above-mentioned configuration, the soft layer 1 comes into contact with the user's neck, improving comfort during use.

[0037] As an optional embodiment, as shown in Figure 1, in the pillow core and opposite the neck support area A is a pressure reduction area C, and the thicknesses of the pressure reduction area C, the soft layer 1, the support layer 2 and the pressure-resistant layer 3 may be equal (recommended) or unequal.

[0038] In the pressure-reducing region C, if the thicknesses of the flexible layer 1, the support layer 2 and the pressure-resistant layer 3 are equal, it is easy to process and position the protrusions and recesses, making it easy to manufacture and to reduce the pressure of the pillow core.

[0039] Example 2 This embodiment provides a pillow set including a pillowcase 4 and the pillow core located within the pillowcase 4.

[0040] If the user uses the pillow in the wrong direction (i.e., with the head cavity area B under the neck) or in an upside-down position (i.e., with the pressure-resistant layer 3 / foundation layer side with the greatest hardness facing up), the ergonomic design will not be effective. To avoid this, in this embodiment, clear markings are provided on the pillow cover 4 to allow the user to quickly and accurately identify the correct direction in which the neck support area A is located.

[0041] As an optional embodiment, as shown in Figure 5, different materials are used for the fabric of the pillow cover 4 corresponding to the upper and lower surfaces of the pillow core, and a marking stitching portion 41 is provided at one end of the pillow cover 4, and the routing direction of the marking stitching portion 41 corresponds to the orientation of the pressure-resistant layer 3 or the neck support area so that the user can identify the neck support area A.

[0042] The marker stitch 41 may be a stitch that can be distinguished in multiple ways from the other stitching on the pillowcase 4, such as using stitching that contrasts with the color of the pillowcase 4 body (e.g., using dark thread on a light-colored pillowcase 4), using a unique stitching pattern (wavy lines, double straight lines, crossed lines, etc.) while the stitching on the rest of the pillowcase 4 is a regular straight line, or by attaching a small weave or label to the stitching. In this way, the user can easily detect the presence of the marker stitch 41 by sight or touch when organizing or using the pillow, and further, it can be made clear that this side is the correct side for neck support.

[0043] In another embodiment, this marking can be achieved by using different materials for different surfaces of the pillowcase 4. For example, the top surface of the pillowcase 4, i.e., the side corresponding to the pillow core's soft layer 1, can be made of a soft, breathable fabric that feels comfortable against the skin, such as natural yarn, finely combed cotton, or bamboo fiber knit, to enhance comfort. Meanwhile, the bottom surface of the pillowcase 4, i.e., the side corresponding to the pillow core's pressure-resistant layer 3, can be made of a more wear-resistant, sturdy fabric, such as polyester canvas or linen blend fabric. When putting on the pillowcase 4 or using the pillow, the user can easily determine which side is the soft contact surface that should face up by touching the distinctly different textures on both sides of the pillowcase 4, thereby indirectly identifying the exact location of the neck support area A.

[0044] In the description herein, the particular features, structures, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

[0045] In the description herein, references to "one embodiment," "some embodiments," "examples," "specific examples," or "some examples" mean that the specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, general references to the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, where not inconsistent, those skilled in the art may mix and match different embodiments or examples described herein, and features of different embodiments or examples.

[0046] Although the above is only a specific embodiment of the present invention, the scope of protection of the present invention is not limited thereto, and should include any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope of the disclosed utility model that should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be in accordance with the scope of protection of the claims. [Explanation of symbols]

[0047] A, neck support area; B, head fossa area; C, pressure reduction area; 1, flexible layer; 11, wrapping section; 2, support layer; 21, support ridge; 22, support recess; 3, pressure-resistant layer; 31, pressure-resistant ridge; 32, pressure-resistant recess; 33, ventilation hole; 4, pillow cover; 41, marking suture.

Claims

1. It is a pillow core, The flexible layer, the support layer, and the pressure-resistant layer are laminated in this order in the thickness direction, The hardness of the soft layer, the support layer, and the pressure-resistant layer increases in sequence, and the soft layer serves as the upper layer of the pillow core. The pillow core has a neck support region and a head cavity region along its width direction, the hardness of the neck support region is greater than the hardness of the head cavity region, and in the neck support region, the pressure-resistant layer and the support layer both protrude toward one side of the soft layer, and in the head cavity region, the soft layer and the support layer protrude toward one side of the pressure-resistant layer.

2. The pillow core of claim 1, characterized in that the support layer has a support ridge, the pressure-resistant layer has a pressure-resistant ridge, the support ridge and the pressure-resistant ridge are both located in the neck support area, and the support ridge and the pressure-resistant ridge both protrude toward one side of the soft layer.

3. The pillow core described in claim 1, characterized in that the support layer has a support recess, the pressure-resistant layer has a pressure-resistant recess, the support recess and the pressure-resistant recess are both located in the fossa region, and the position of the soft layer corresponding to the fossa region extends toward the support recess.

4. 2. The pillow core according to claim 1, wherein when not subjected to pressure, the upper surface of the soft layer and the lower surface of the pressure-resistant layer are both flat.

5. The pillow core described in claim 1, characterized in that the soft layer has an enveloping portion, which has an arc structure, which is located on the side of the pillow core that contacts the neck, and which is covered on the outside of the support layer and directly contacts the pressure-resistant layer.

6. the flexible layer, the support layer and the pressure-resistant layer are all made of polyurethane memory foam material, and the material density of the pressure-resistant layer is greater than the material density of the flexible layer; 2. The pillow core according to claim 1, wherein the hardness of the soft layer, the support layer, and the pressure-resistant layer increases in sequence.

7. The pillow core of claim 1, characterized in that the pillow core has a pressure reduction area on the side opposite the neck support area, and the thicknesses of the pressure reduction area, the soft layer, the support layer and the pressure-resistant layer are equal or unequal.

8. 2. The pillow core according to claim 1, wherein the pressure-resistant layer has a plurality of ventilation holes on its upper surface.

9. A pillow set, A pillow set comprising a pillow cover and a pillow core according to any one of claims 1 to 8 positioned within the pillow cover.

10. The pillow covers corresponding to the upper and lower surfaces of the pillow core are made of different materials. The pillow set of claim 9, characterized in that a marking stitching is provided at one end of the pillow cover, and the routing direction of the marking stitching matches the orientation of the pressure-resistant layer or the neck support area so that the user can identify the neck support area.

Images