A slow-rebound breathable sponge pillow

Abstract

This utility model discloses a slow-rebound breathable sponge pillow, relating to the field of bedding technology. It includes a pillow body and an outer pillowcase. The pillow body comprises two layers: an upper polyurethane sponge layer and a lower latex layer, bonded together. Multiple air vents are perforated through the middle of both the polyurethane sponge and latex layers, arranged radially. The air vents in the two layers correspond to and connect with each other, forming a complete breathable channel system. The outer pillowcase is a blend of Tencel fiber and Artemisia argyi fiber. The slow-rebound characteristics of the polyurethane sponge and the elastic support of the latex complement each other, allowing the pillow to maintain its support strength even with slow rebound. The radially arranged air vents with gradually changing diameters form directional airflow channels, enabling airflow to circulate.

Description

Technical Field

[0001] This utility model relates to the field of bedding technology, specifically to a slow-rebound breathable sponge pillow. Background Technology

[0002] From traditional buckwheat pillows and down pillows to modern slow-rebound memory foam pillows, the goal has always been to provide users with good head support and a comfortable sleep experience. Currently, slow-rebound foam holds a certain market share in the pillow industry due to its excellent conformability and pressure distribution capabilities.

[0003] However, slow-rebound foam pillows made of a single material still have some limitations, such as insufficient breathability and a tendency to collapse and deform after long-term use. Furthermore, their breathability design is often flawed; most products use straight holes of equal diameter with a haphazard arrangement, resulting in low airflow efficiency. This causes heat and moisture to accumulate in certain areas, especially in the core area where the head contacts the pillow during sleep, leading to a noticeable stuffy feeling. Utility Model Content

[0004] To address the aforementioned problems, this utility model proposes a slow-rebound breathable sponge pillow, comprising a pillow body and an outer pillowcase. The pillow body consists of two layers: an upper layer of polyurethane sponge and a lower layer of latex, which are bonded together. Multiple ventilation holes are provided through the middle of both the polyurethane sponge and latex layers, arranged radially. The ventilation holes in the two layers correspond to and are connected, forming a complete ventilation channel system. The outer pillowcase is a blended fabric of Tencel fiber and Artemisia argyi fiber cotton.

[0005] Furthermore, a recessed-convex interlocking structure is provided between the polyurethane foam layer and the latex layer. The bottom of the polyurethane foam layer is provided with a protrusion 1, the top of the latex layer is provided with a concave portion 1 for the protrusion 1 to be inserted into, the top of the latex layer is provided with a protrusion 2, and the bottom of the polyurethane foam layer is provided with a concave portion 2 for the protrusion 2 to be inserted into.

[0006] Furthermore, some of the ventilation holes in the latex layer have placement grooves on their outer surface, and bamboo charcoal granule bags are placed in the placement grooves, with the bamboo charcoal granule bags not completely covering the ventilation holes.

[0007] Furthermore, multiple anti-slip protrusions are fixed at equal intervals on the bottom of the latex layer.

[0008] Furthermore, the diameter of the multiple vent holes is gradually reduced from the center outwards.

[0009] Furthermore, the fabric blending ratio of the outer pillowcase is: 70%-80% Tencel fiber and 20%-30% Artemisia argyi fiber cotton.

[0010] The beneficial effects of this utility model are as follows:

[0011] 1. The slow rebound properties of polyurethane foam complement the elastic support of latex, allowing the pillow to maintain its support strength even with slow rebound, thus improving neck and head support comfort. The Tencel and mugwort blend fabric of the outer pillowcase ensures moisture absorption and breathability and helps reduce the growth of bacteria and mites in the surrounding environment.

[0012] 2. The radially arranged and gradually changing pores form a directional airflow channel, which can gather heat and moisture. The small pore area at the edge creates an air pressure difference, allowing the airflow to circulate. The partial covering design of the bamboo charcoal particles in the placement groove has the function of absorbing odors and moisture, so that the adsorption capacity and breathability form a synergistic effect.

[0013] 3. The interlocking of the raised portion one and the concave portion one and concave portion two effectively restricts the relative displacement between the two layers when the pillow is subjected to external pressure or compression from turning over. Compared with structures that rely solely on glue, this interlocking method provides stronger connection strength and stability, effectively avoiding the problems of easy delamination and deformation between layers in traditional composite pillows. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the pillow body in this utility model;

[0015] Figure 2 for Figure 1 Top view of the polyurethane foam layer;

[0016] Figure 3 for Figure 1 A top view of the intermediate latex layer.

[0017] The following are the annotations in the attached diagram: 1. Pillow body; 101. Polyurethane foam layer; 102. Latex layer; 2. Breathing hole; 3. Raised part one; 4. Raised part two; 5. Anti-slip bumps; 6. Bamboo charcoal granule pack. Detailed Implementation

[0018] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0019] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0020] The present invention will be further described below with reference to the accompanying drawings:

[0021] A type of slow-rebound breathable sponge pillow, such as Figure 1 , Figure 2 and Figure 3 As shown, the pillow includes a pillow body 1 and an outer pillowcase. The pillow body 1 consists of two layers: an upper layer of polyurethane foam 101 and a lower layer of latex 102. The polyurethane foam 101 and the latex 102 are bonded together. Multiple ventilation holes 2 are provided through the middle of both the polyurethane foam 101 and the latex 102. The ventilation holes 2 are arranged radially, and the diameter of the multiple ventilation holes 2 gradually decreases from the middle to the outside. The ventilation holes 2 of the two layers correspond to each other and are connected to form a complete ventilation channel system.

[0022] The upper polyurethane foam layer 101 utilizes its slow rebound properties to provide a close fit and support that conforms to the shape of the head; the lower latex layer 102 uses its natural elasticity to distribute neck pressure. The vents 2 are radial and have gradually changing pore sizes. Based on aerodynamics, they create a suction effect within the pores, promoting the flow of hot and humid air from the inside to the outside, thus constructing a complete ventilation channel system.

[0023] In this embodiment, the outer pillowcase is a blend of Tencel fiber and Artemisia argyi fiber cotton, with the following blending ratio: 70%-80% Tencel fiber and 20%-30% Artemisia argyi fiber cotton. Tencel fiber offers excellent softness and breathability, giving the pillowcase a delicate feel and basic breathability; Artemisia argyi fiber cotton possesses natural antibacterial and insect-repellent properties. The blending ratio ensures both fabric performance and fully utilizes the advantages of Artemisia argyi fiber.

[0024] like Figure 1 and Figure 3As shown in this embodiment, a concave-convex interlocking structure is provided between the polyurethane foam layer 101 and the latex layer 102. The bottom of the polyurethane foam layer 101 has a protrusion 3, and the top of the latex layer 102 has a concave portion 1 for the protrusion 3 to be inserted into. The top of the latex layer 102 has a protrusion 4, and the bottom of the polyurethane foam layer 101 has a concave portion 2 for the protrusion 4 to be inserted into. The polyurethane foam layer and the latex layer 102 are tightly bonded through the concave-convex interlocking structure. When the pillow is subjected to external force, the protrusions and concave portions interlock and restrict displacement, enhancing the connection stability through interlocking and preventing displacement and delamination of the polyurethane foam layer 101 and the latex layer 102 during long-term use and frequent turning over.

[0025] like Figure 1 and Figure 3 As shown, in this embodiment, a placement groove is formed on the outer layer of some of the ventilation holes 2 of the latex layer 102, and a bamboo charcoal granule bag 6 is placed in the placement groove. The bamboo charcoal granule bag 6 does not completely cover the ventilation holes 2. Multiple anti-slip protrusions 5 are fixed at equal intervals on the bottom of the latex layer 102. The porous structure of the bamboo charcoal absorbs moisture and odors in the air; the anti-slip protrusions 5 increase the friction with the contact surface with the bed to prevent the pillow from sliding.

[0026] When a user lies on the pillow, the weight of their head is initially applied to the polyurethane foam layer 101. Due to its slow rebound properties, the polyurethane foam begins to deform slowly, gradually sinking into the contours of the head and closely conforming to its curve. During this process, the polyurethane foam layer 101 evenly distributes the pressure of the head onto its contact surface with the latex layer 102. Because of the interlocking structure between the polyurethane foam layer 101 and the latex layer 102—with protrusion 3 embedded in concave portion 1 and protrusion 4 embedded in concave portion 2—this structure effectively limits the relative displacement between the two layers under pressure, allowing the pressure to be evenly transmitted to the latex layer 102.

[0027] In summary, the upper polyurethane foam layer 101 utilizes its slow rebound properties to provide a snug fit and support that conforms to the shape of the head; the lower latex layer 102, with its natural elasticity, disperses neck pressure. The vents 2 are radially arranged with gradually changing pore sizes. Based on aerodynamics, this creates a suction effect within the pores, promoting the flow of warm, humid air from the inside to the outside, constructing a complete ventilation channel system. The latex layer 102 itself possesses excellent elasticity and softness, further deforming to provide support for the neck. The deformation of the latex layer 102, in conjunction with the polyurethane foam layer 101, forms a continuous and uniform support surface, ensuring that the head and neck are in a comfortable and natural physiological curvature, effectively relieving neck muscle tension and pressure, and preventing cervical spine problems caused by improper pillow support.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A slow-rebound, breathable sponge pillow comprising a pillow body (1) and an outer pillow cover, characterized in that: The pillow body (1) includes two layers: an upper layer of polyurethane sponge (101) and a lower layer of latex (102). The polyurethane sponge (101) and the latex (102) are bonded together. Multiple ventilation holes (2) are opened through the middle of both the polyurethane sponge (101) and the latex (102). The ventilation holes (2) are arranged radially. The ventilation holes (2) of the two layers correspond to each other and are connected to form a complete ventilation channel system. The outer pillowcase is a blended fabric of Tencel fiber and Artemisia argyi fiber cotton.

2. The slow-rebound, breathable foam pillow of claim 1, wherein: A recessed-convex interlocking structure is provided between the polyurethane sponge layer (101) and the latex layer (102). The bottom of the polyurethane sponge layer (101) is provided with a protrusion (3), the top of the latex layer (102) is provided with a concave portion (3) for the protrusion (3) to be inserted, the top of the latex layer (102) is provided with a protrusion (4), and the bottom of the polyurethane sponge layer (101) is provided with a concave portion (4) for the protrusion (4) to be inserted.

3. The slow-rebound, breathable foam pillow of claim 1, wherein: The outer layer of the latex layer (102) has a placement groove on the outer layer of some of the air vents (2), and bamboo charcoal granule packs (6) are placed in the placement grooves. The bamboo charcoal granule packs (6) do not completely cover the air vents (2).

4. The slow-rebound, breathable foam pillow of claim 1, wherein: The bottom of the latex layer (102) is fixed with multiple anti-slip protrusions (5) at equal intervals.

5. The slow-rebound, breathable foam pillow of claim 1, wherein: The diameter of the multiple ventilation holes (2) is gradually reduced from the center outwards.

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