Cushion for human body support

Abstract

A cushion for human body support is provided, which includes: a fabric base layer, having a content space divided into a central filling zone and a peripheral filling zone; an elastic support body disposed within the central filling zone, which lifts the fabric base layer of the central filling zone to form a primary support module for supporting the human body; filling material filled within the peripheral filling zone, supporting the fabric base layer of the peripheral filling zone to form an auxiliary limiting module for restricting the position of the human body; wherein the surface of the auxiliary limiting module is arcuate, the top point of the auxiliary limiting module is higher than the top point of the primary support module; and the primary slope angle α is acute, while the inner wall angle β of the auxiliary limiting module is an obtuse angle.

Description

CROSS REFERENCE TO RELATED APPLICATIONS

[0001] This application claims foreign priority of Chinese Patent Application No. 202610339722.2, filed on March 19, 2026 in the China National Intellectual Property Administration, the entire disclosure of which is hereby incorporated by reference.FIELD

[0002] The present disclosure relates to the technical field of cushion, specifically to a cushion for human body support.BACKGROUND

[0003] In modern infant care, ensuring the safety, comfort, and stability of babies during sleep and rest is a primary concern. To this end, various types of infant cushion pads, bumpers, mattresses, or care pads are widely used in cribs, changing tables, car seats, play mats, and similar settings. The primary function of these cushion pads is to provide soft support for infants, cushion contact pressure, and reduce the risk of injury from accidental collisions or falls.

[0004] However, existing infant cushioning pads still exhibit certain functional limitations and practical shortcomings. First, most traditional pads typically offer only a relatively flat or uniform support surface. Their design emphasizes overall softness and cushioning performance but lacks structural elements for effective, proactive guidance and restriction of the infant's body position. Infants, especially newborns or young infants, possess limited autonomous mobility. During sleep or positioning, they are prone to unintentional lateral shifting or sliding due to their own movements or external disturbances. This poses potential risks such as slipping into unsafe areas (e.g., mattress edges) or developing improper body postures that may obstruct breathing. Some products attempt to address displacement by adding side rails or securing straps. However, these structures are often rigid and lack cushioning, potentially causing pressure points or friction discomfort on infants' delicate skin. Alternatively, their restraint mechanisms are inflexible and non-adjustable, failing to adapt to the dynamic growth needs of infants of varying sizes and ages, resulting in poor comfort and fit.

[0005] Furthermore, existing cushion designs often feature simplistic pressure distribution. Flat or slightly curved surfaces may concentrate pressure on prominent body areas like the head, shoulders, or hips during use. Prolonged exposure can impair local blood circulation, causing discomfort or even increasing pressure sore risks. Although some products incorporate slow-rebound materials like memory foam or latex to improve pressure distribution, they lack precise ergonomic integration in structural form. Specifically, there remains an effective solution for how the cushion's shape itself can guide the infant's body weight to naturally settle in a safe, ideal central position.SUMMARY

[0006] The present disclosure provides a cushion for human body support to overcome the limitations of current models.

[0007] According to some embodiments of the present disclosure, a cushion for human body support is provided, which includes: a fabric base layer, having a content space divided into a central filling zone and a peripheral filling zone, wherein the peripheral filling zone is arranged around the central filling zone; an elastic support body disposed within the central filling zone, which lifts the fabric base layer of the central filling zone to form a primary support module for supporting the human body; filling material filled within the peripheral filling zone, supporting the fabric base layer of the peripheral filling zone to form an auxiliary limiting module for restricting the position of the human body; wherein the surface of the auxiliary limiting module is arcuate, when the cushion is laid flat on a horizontal plane, the top point of the auxiliary limiting module is higher than the top point of the primary support module; and the primary slope surface formed between the primary support module and the auxiliary limiting module forms an acute angle α with the horizontal plane, while the inner wall angle β of the auxiliary limiting module is an obtuse angle.

[0008] Furthermore, the fabric base layer has two opposing surfaces, with edge stitching lines sewn along said surfaces, wherein the edge stitching lines fixes the two surfaces together along a closed annular path and divides the content space into the peripheral filling zone and the central filling zone.

[0009] Furthermore, center stitching lines are sewn onto the fabric base layer of the primary support module to securely connect the elastic support body to the fabric base layer.

[0010] Furthermore, the primary support module forms recessed structure at the center stitching lines to enhance friction when contacting the skin, and the recessed structure divides the primary support module into two parts.

[0011] Furthermore, the primary support module is rectangular, and the center stitching lines are located at the geometric centerline of the primary support module to divide the primary support module into two identical rectangular sections.

[0012] Furthermore, the peripheral filling zone is provided with a filling opening, and a connecting fastener is installed at the filling opening for opening and closing the filling opening.

[0013] Furthermore, the angle α formed between the primary slope surface and the horizontal plane is within the range of 5° to 10°.

[0014] Furthermore, the inner wall angle β is within the range of 90° to 150°.

[0015] Furthermore, the distance D1 between the top point of the auxiliary limiting module and the top point of the primary support module is within the range of 0.5 cm to 5 cm.

[0016] Furthermore, the filling density of the filling material in the peripheral filling zone is between 400 g / m³ and 700 g / m³.

[0017] Furthermore, the filling material is polyester fiber.

[0018] According to some embodiments of the present disclosure, a cushion for human body support is provided, which includes: a primary support module for supporting the human body; an auxiliary limiting module surrounding the outer side of the primary support module for restricting the position of the human body; wherein the primary support module and the auxiliary limiting module share a common fabric base layer, with edge stitching lines sewn onto the fabric base layer to separate the primary support module and the auxiliary limiting module; wherein the surface of the auxiliary limiting module is arcuate, when the cushion is laid flat on a horizontal plane, the top point of the auxiliary limiting module is higher than the top point of the primary support module; and the primary slope surface formed between the primary support module and the auxiliary limiting module forms an acute angle α with the horizontal plane, while the inner wall angle β of the auxiliary limiting module is an obtuse angle.

[0019] Furthermore, the auxiliary limiting module is provided with a filling opening, and a connecting fastener is installed at the filling opening for opening and closing the filling opening.

[0020] Furthermore, the angle α formed between the primary slope surface and the horizontal plane is within the range of 5° to 10°.

[0021] Furthermore, the inner wall angle β is within the range of 90° to 150°.

[0022] Furthermore, the distance D1 between the top point of the auxiliary limiting module and the top point of the primary support module is within the range of 0.5 cm to 5 cm.

[0023] Furthermore, the auxiliary limiting module comprises filling material, and the filling density of the filling material is between 400 g / m³ and 700 g / m³.

[0024] Furthermore, the filling material is polyester fiber.BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings are provided to facilitate further understanding of the present disclosure and form part of the present disclosure. The illustrative embodiments and their descriptions are intended to explain the present disclosure and do not constitute undue limitations thereof. In the drawings:

[0026] FIG. 1 shows the schematic diagram of the overall structure of the cushion according to embodiment 1, first perspective;

[0027] FIG. 2 shows the schematic diagram of the overall structure of the cushion according to embodiment 1, second perspective;

[0028] FIG. 3 shows a cross-sectional view of the cushion according to embodiment 1, illustrating the content space within the fabric base layer;

[0029] FIG. 4 shows a partial cross-sectional view of the cushion according to embodiment 1, illustrating the distance D1 between the top of the primary support module and the top of the auxiliary limiting module;

[0030] FIG. 5 shows the hinged weight gauge provided in the test method of Title 16, Part 1243 of the Code of Federal Regulations;

[0031] FIG. 6 shows a partial cross-sectional view of the cushion according to embodiment 1, illustrating the primary slope surface and the primary slope angle α;

[0032] FIG. 7 shows a partial cross-sectional view of the cushion according to embodiment 1, illustrating the inner wall angle β.

[0033] Reference signs:

[0034] 100. Fabric base layer; 101. Stitching line; 101a. Edge stitching line; 101b. Center stitching line; 102. Central filling zone; 103. Peripheral filling zone; 104. Filling opening; 105. Connecting fastener; 200. Primary support module; 201. Elastic support body; 300. Auxiliary limiting module; 300a. Filling material; 400. Hinged weight gauge; 401. Upper pressure plate; 402. Lower pressure plate; P1. Horizontal plane; P2. Vertical plane; α. Primary slope angle; β. Inner wall angle.DETAILED DESCRIPTION

[0035] To further illustrate the content, features, and efficacy of the present disclosure, the following embodiments are provided and described in detail with reference to the accompanying drawings:Embodiment 1

[0036] Referring to FIGS. 1-7, this embodiment discloses a cushion for human body support, including a flexible fabric base layer 100 with a content space. The fabric base layer 100 is generally rectangular and has upper and lower surfaces, with the content space defined between said upper and lower surfaces. Both surfaces of the fabric base layer 100 are stitched with stitching lines 101. The stitching lines 101 on the two surfaces correspond vertically to each other, serving to divide the content space into regions with different functional uses. Among these, the stitching lines 101 sewn near the edge of the fabric base layer 100 is the edge stitching lines 101a. The edge stitching lines 101a follows a circular path, encircling the inner side of the fabric base layer 100's edge and securing the upper and lower surfaces together along this circular path, thereby partitioning the content space. The content space outside the edge stitching line 101a is defined as the peripheral filling zone 103, while the content space inside forms the central filling zone 102. The central filling zone 102 houses an elastic support body 201, and the peripheral filling zone 103 is filled with filling material 300a. The elastic support body 201 lifts the fabric base layer 100 of the central filling zone 102, forming the primary support module 200 together with the fabric base layer 100 in this zone. Meanwhile, the filling material 300a lifts the fabric base layer 100 of the peripheral filling zone 103, forming the auxiliary limiting module 300 together with the fabric base layer 100 in this zone.

[0037] The primary support module 200 is a rectangular structure. Central stitching lines 101b is sewn onto the surface of the fabric base layer 100 of the primary support module 200. These central stitching lines 101b serves to securely connect the surface of the fabric base layer 100 with the elastic support body 201, thereby maintaining the stable positioning of the elastic support body 201. The primary support module 200 forms a recessed structure at the center stitching lines 101b. These center stitching lines 101b runs parallel to the long edge of the primary support module 200 and is positioned along its geometric centerline. Consequently, this recessed structure divides the primary support module 200 into two identical rectangular sections. During use, the recessed structure creates resistance against the skin, enhancing friction between the product and the skin surface to reduce slippage. The elastic support body 201 adopts an overall plate-like rectangular prism structure. Its surface in contact with the fabric base layer 100 features a micro-curved contour. Consequently, the surface of the primary support module 200 formed by the elastic support body 201 also exhibits a curved profile. When an infant is placed on the primary support module 200, this curved surface helps distribute pressure on the skin, enhancing comfort.

[0038] The auxiliary limiting module 300 is arranged around the periphery of the primary support module 200. In this embodiment, the filling material 300a of the auxiliary limiting module 300 uses polyester fiber. When the cushion is laid flat on a horizontal surface, the top point V2 of the auxiliary limiting module 300 is 0.5 cm to 5 cm higher than the top point V1 of the primary support module 200. Referring to FIG. 4, the distance D1 between the top point V2 of the auxiliary limiting module 300 and the top point V1 of the primary support module 200 ranges from 0.5 cm to 5 cm in this embodiment. The four corners of auxiliary limiting module 300 feature rounded transition structures. This design ensures more uniform distribution of filling material 300a within peripheral filling zone 103, making auxiliary limiting module 300 less prone to deformation from folding or compression. The outer surface of auxiliary limiting module 300 exhibits a pronounced curved structure, providing enhanced support for the infant's head and back.

[0039] To facilitate adding filling material 300a to the peripheral filling zone 103, a filling opening 104 is provided on the outer surface of the peripheral filling zone 103. Filling material 300a can be filled into the peripheral filling zone 103 through this filling opening 104 or removed from it. A connecting fastener 105 is installed at the filling opening 104 to enable users to quickly open or close it. In this embodiment, the connecting fastener 105 employs a zipper. Users can conveniently open or close the filling opening 104 by pulling the zipper pull. The auxiliary limiting module 300 can adjust its firmness by regulating the filling density of the filling material 300a to accommodate varying support strength requirements. The polyester fiber filling material 300a within the peripheral filling zone 103 has a filling density ranging from 400g / m³ to 700g / m³, meeting the support needs for infants while ensuring comfort during support.

[0040] The cushion of the present disclosure complies with the requirements of Title 16 of the Code of Federal Regulations (CFR).

[0041] Specifically, the cushion of the present disclosure can be tested using the hinged weight gauge 400—newborn (ASTM hinged weight gauge—newborn) provided in Section 1243 of the CFR. The hinged weight gauge 400 provided in the test method of this section includes an upper pressure plate 401 and a lower pressure plate 402. The upper pressure plate 401 simulates the infant's back and head, while the lower pressure plate 402 simulates the lower body below the infant's waist. The upper and lower pressure plates 401 and 402 are hinged together via a pin. Referring to FIGS. 5 and 6, during testing, the cushion is placed on a horizontal surface. The lower pressure plate 402 is positioned on the surface of the primary support module 200, while the upper pressure plate 401 presses against the auxiliary limiting module 300. When the upper pressure plate 401 presses against the auxiliary limiting module 300, it causes a certain degree of elastic deformation in the auxiliary limiting module 300, which remains compliant with the test standards. During testing, the edge of the upper pressure plate 401 must also align with the outermost vertical plane P2 of the auxiliary limiting module 300. At this point, the upper pressure plate 401 forms a certain angle with the horizontal plane P1. This angle is the primary slope angle α of the cushion. Additionally, the surface where the upper pressure plate 401 contacts the auxiliary limiting module 300 is defined as the primary slope surface. In this embodiment, the angle α ranges between 5° and 10°. This angle provides high comfort when the infant's head rests on the auxiliary limiting module 300 while also mitigating potential cervical spine injury caused by excessive angles.

[0042] Additionally, as shown in FIG. 7, the surface of the primary support module 200 becomes plane under slight pressure. Therefore, the slight arcuate protrusion of the primary support module 200 can be neglected, and its upper surface can be approximated as a horizontal plane. Taking the upper surface of the primary support module 200 as the reference plane, this reference plane extends to intersect with the auxiliary limiting module 300. The intersection line serves as the inner wall reference line A1. In the cross-sectional view, the inner wall reference line A1 is represented as a point. The tangent plane of the auxiliary limiting module 300's surface at the inner wall reference line A1 forms the inner wall angle reference plane A2. The angle between the inner wall angle reference plane A2 and the horizontal plane P1 is the inner wall angle β. The inner wall angle β is obtuse. In this embodiment, the inner wall angle β ranges from 90° to 150°. Within this range, the inner wall angle β guides the infant's center of gravity toward the center. This ensures comfort while significantly reducing the likelihood of the infant shifting outside the cushion.

[0043] The beneficial effect of the present disclosure lies in the fact that the cushion integrates two components: the primary support module 200 and the auxiliary limiting module 300. The primary support module 200 constitutes the primary structure for supporting the infant, while the auxiliary limiting module 300 restricts the infant's position, ensuring the infant remains within a specific area when placed on the cushion. In this disclosure, the auxiliary limiting module 300 employs flexible filling material 300a for its assembly, featuring adjustable density. This design combines flexible cushioning, shape-retaining positioning, and adaptable firmness. Coupled with the height differential between itself and the primary support module 200, it forms an encircling positioning space that restricts lateral displacement during human contact.

[0044] Additionally, the obtuse angle formed between the inner walls of the primary support module 200 and auxiliary limiting module 300 guides the user's center of gravity toward the center while preventing sharp contact sensations. The primary slope angle formed between the auxiliary limiting module 300 and the horizontal plane ensures that when an infant's head rests on the auxiliary limiting module 300, comfort is maintained while preventing excessive angles that could cause head injury.

[0045] The above are merely embodiments of the present disclosure and are not intended to limit the scope of the present disclosure. For those skilled in the art, the present disclosure may be subject to various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present disclosure shall be included within the scope of the appended claims.

Examples

embodiment 1

[0036]Referring to FIGS. 1-7, this embodiment discloses a cushion for human body support, including a flexible fabric base layer 100 with a content space. The fabric base layer 100 is generally rectangular and has upper and lower surfaces, with the content space defined between said upper and lower surfaces. Both surfaces of the fabric base layer 100 are stitched with stitching lines 101. The stitching lines 101 on the two surfaces correspond vertically to each other, serving to divide the content space into regions with different functional uses. Among these, the stitching lines 101 sewn near the edge of the fabric base layer 100 is the edge stitching lines 101a. The edge stitching lines 101a follows a circular path, encircling the inner side of the fabric base layer 100's edge and securing the upper and lower surfaces together along this circular path, thereby partitioning the content space. The content space outside the edge stitching line 101a is defined as the peripheral fillin...

CROSS REFERENCE TO RELATED APPLICATIONS

[0001] This application claims foreign priority of Chinese Patent Application No. 202610339722.2, filed on March 19, 2026 in the China National Intellectual Property Administration, the entire disclosure of which is hereby incorporated by reference.FIELD

[0002] The present disclosure relates to the technical field of cushion, specifically to a cushion for human body support.BACKGROUND

[0003] In modern infant care, ensuring the safety, comfort, and stability of babies during sleep and rest is a primary concern. To this end, various types of infant cushion pads, bumpers, mattresses, or care pads are widely used in cribs, changing tables, car seats, play mats, and similar settings. The primary function of these cushion pads is to provide soft support for infants, cushion contact pressure, and reduce the risk of injury from accidental collisions or falls.

[0004] However, existing infant cushioning pads still exhibit certain functional limitations and practical shortcomings. First, most traditional pads typically offer only a relatively flat or uniform support surface. Their design emphasizes overall softness and cushioning performance but lacks structural elements for effective, proactive guidance and restriction of the infant's body position. Infants, especially newborns or young infants, possess limited autonomous mobility. During sleep or positioning, they are prone to unintentional lateral shifting or sliding due to their own movements or external disturbances. This poses potential risks such as slipping into unsafe areas (e.g., mattress edges) or developing improper body postures that may obstruct breathing. Some products attempt to address displacement by adding side rails or securing straps. However, these structures are often rigid and lack cushioning, potentially causing pressure points or friction discomfort on infants' delicate skin. Alternatively, their restraint mechanisms are inflexible and non-adjustable, failing to adapt to the dynamic growth needs of infants of varying sizes and ages, resulting in poor comfort and fit.

[0005] Furthermore, existing cushion designs often feature simplistic pressure distribution. Flat or slightly curved surfaces may concentrate pressure on prominent body areas like the head, shoulders, or hips during use. Prolonged exposure can impair local blood circulation, causing discomfort or even increasing pressure sore risks. Although some products incorporate slow-rebound materials like memory foam or latex to improve pressure distribution, they lack precise ergonomic integration in structural form. Specifically, there remains an effective solution for how the cushion's shape itself can guide the infant's body weight to naturally settle in a safe, ideal central position.SUMMARY

[0006] The present disclosure provides a cushion for human body support to overcome the limitations of current models.

[0007] According to some embodiments of the present disclosure, a cushion for human body support is provided, which includes: a fabric base layer, having a content space divided into a central filling zone and a peripheral filling zone, wherein the peripheral filling zone is arranged around the central filling zone; an elastic support body disposed within the central filling zone, which lifts the fabric base layer of the central filling zone to form a primary support module for supporting the human body; filling material filled within the peripheral filling zone, supporting the fabric base layer of the peripheral filling zone to form an auxiliary limiting module for restricting the position of the human body; wherein the surface of the auxiliary limiting module is arcuate, when the cushion is laid flat on a horizontal plane, the top point of the auxiliary limiting module is higher than the top point of the primary support module; and the primary slope surface formed between the primary support module and the auxiliary limiting module forms an acute angle α with the horizontal plane, while the inner wall angle β of the auxiliary limiting module is an obtuse angle.

[0008] Furthermore, the fabric base layer has two opposing surfaces, with edge stitching lines sewn along said surfaces, wherein the edge stitching lines fixes the two surfaces together along a closed annular path and divides the content space into the peripheral filling zone and the central filling zone.

[0009] Furthermore, center stitching lines are sewn onto the fabric base layer of the primary support module to securely connect the elastic support body to the fabric base layer.

[0010] Furthermore, the primary support module forms recessed structure at the center stitching lines to enhance friction when contacting the skin, and the recessed structure divides the primary support module into two parts.

[0011] Furthermore, the primary support module is rectangular, and the center stitching lines are located at the geometric centerline of the primary support module to divide the primary support module into two identical rectangular sections.

[0012] Furthermore, the peripheral filling zone is provided with a filling opening, and a connecting fastener is installed at the filling opening for opening and closing the filling opening.

[0013] Furthermore, the angle α formed between the primary slope surface and the horizontal plane is within the range of 5° to 10°.

[0014] Furthermore, the inner wall angle β is within the range of 90° to 150°.

[0015] Furthermore, the distance D1 between the top point of the auxiliary limiting module and the top point of the primary support module is within the range of 0.5 cm to 5 cm.

[0016] Furthermore, the filling density of the filling material in the peripheral filling zone is between 400 g / m³ and 700 g / m³.

[0017] Furthermore, the filling material is polyester fiber.

[0018] According to some embodiments of the present disclosure, a cushion for human body support is provided, which includes: a primary support module for supporting the human body; an auxiliary limiting module surrounding the outer side of the primary support module for restricting the position of the human body; wherein the primary support module and the auxiliary limiting module share a common fabric base layer, with edge stitching lines sewn onto the fabric base layer to separate the primary support module and the auxiliary limiting module; wherein the surface of the auxiliary limiting module is arcuate, when the cushion is laid flat on a horizontal plane, the top point of the auxiliary limiting module is higher than the top point of the primary support module; and the primary slope surface formed between the primary support module and the auxiliary limiting module forms an acute angle α with the horizontal plane, while the inner wall angle β of the auxiliary limiting module is an obtuse angle.

[0019] Furthermore, the auxiliary limiting module is provided with a filling opening, and a connecting fastener is installed at the filling opening for opening and closing the filling opening.

[0020] Furthermore, the angle α formed between the primary slope surface and the horizontal plane is within the range of 5° to 10°.

[0021] Furthermore, the inner wall angle β is within the range of 90° to 150°.

[0022] Furthermore, the distance D1 between the top point of the auxiliary limiting module and the top point of the primary support module is within the range of 0.5 cm to 5 cm.

[0023] Furthermore, the auxiliary limiting module comprises filling material, and the filling density of the filling material is between 400 g / m³ and 700 g / m³.

[0024] Furthermore, the filling material is polyester fiber.BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings are provided to facilitate further understanding of the present disclosure and form part of the present disclosure. The illustrative embodiments and their descriptions are intended to explain the present disclosure and do not constitute undue limitations thereof. In the drawings:

[0026] FIG. 1 shows the schematic diagram of the overall structure of the cushion according to embodiment 1, first perspective;

[0027] FIG. 2 shows the schematic diagram of the overall structure of the cushion according to embodiment 1, second perspective;

[0028] FIG. 3 shows a cross-sectional view of the cushion according to embodiment 1, illustrating the content space within the fabric base layer;

[0029] FIG. 4 shows a partial cross-sectional view of the cushion according to embodiment 1, illustrating the distance D1 between the top of the primary support module and the top of the auxiliary limiting module;

[0030] FIG. 5 shows the hinged weight gauge provided in the test method of Title 16, Part 1243 of the Code of Federal Regulations;

[0031] FIG. 6 shows a partial cross-sectional view of the cushion according to embodiment 1, illustrating the primary slope surface and the primary slope angle α;

[0032] FIG. 7 shows a partial cross-sectional view of the cushion according to embodiment 1, illustrating the inner wall angle β.

[0033] Reference signs:

[0034] 100. Fabric base layer; 101. Stitching line; 101a. Edge stitching line; 101b. Center stitching line; 102. Central filling zone; 103. Peripheral filling zone; 104. Filling opening; 105. Connecting fastener; 200. Primary support module; 201. Elastic support body; 300. Auxiliary limiting module; 300a. Filling material; 400. Hinged weight gauge; 401. Upper pressure plate; 402. Lower pressure plate; P1. Horizontal plane; P2. Vertical plane; α. Primary slope angle; β. Inner wall angle.DETAILED DESCRIPTION

[0035] To further illustrate the content, features, and efficacy of the present disclosure, the following embodiments are provided and described in detail with reference to the accompanying drawings:Embodiment 1

[0036] Referring to FIGS. 1-7, this embodiment discloses a cushion for human body support, including a flexible fabric base layer 100 with a content space. The fabric base layer 100 is generally rectangular and has upper and lower surfaces, with the content space defined between said upper and lower surfaces. Both surfaces of the fabric base layer 100 are stitched with stitching lines 101. The stitching lines 101 on the two surfaces correspond vertically to each other, serving to divide the content space into regions with different functional uses. Among these, the stitching lines 101 sewn near the edge of the fabric base layer 100 is the edge stitching lines 101a. The edge stitching lines 101a follows a circular path, encircling the inner side of the fabric base layer 100's edge and securing the upper and lower surfaces together along this circular path, thereby partitioning the content space. The content space outside the edge stitching line 101a is defined as the peripheral filling zone 103, while the content space inside forms the central filling zone 102. The central filling zone 102 houses an elastic support body 201, and the peripheral filling zone 103 is filled with filling material 300a. The elastic support body 201 lifts the fabric base layer 100 of the central filling zone 102, forming the primary support module 200 together with the fabric base layer 100 in this zone. Meanwhile, the filling material 300a lifts the fabric base layer 100 of the peripheral filling zone 103, forming the auxiliary limiting module 300 together with the fabric base layer 100 in this zone.

[0037] The primary support module 200 is a rectangular structure. Central stitching lines 101b is sewn onto the surface of the fabric base layer 100 of the primary support module 200. These central stitching lines 101b serves to securely connect the surface of the fabric base layer 100 with the elastic support body 201, thereby maintaining the stable positioning of the elastic support body 201. The primary support module 200 forms a recessed structure at the center stitching lines 101b. These center stitching lines 101b runs parallel to the long edge of the primary support module 200 and is positioned along its geometric centerline. Consequently, this recessed structure divides the primary support module 200 into two identical rectangular sections. During use, the recessed structure creates resistance against the skin, enhancing friction between the product and the skin surface to reduce slippage. The elastic support body 201 adopts an overall plate-like rectangular prism structure. Its surface in contact with the fabric base layer 100 features a micro-curved contour. Consequently, the surface of the primary support module 200 formed by the elastic support body 201 also exhibits a curved profile. When an infant is placed on the primary support module 200, this curved surface helps distribute pressure on the skin, enhancing comfort.

[0038] The auxiliary limiting module 300 is arranged around the periphery of the primary support module 200. In this embodiment, the filling material 300a of the auxiliary limiting module 300 uses polyester fiber. When the cushion is laid flat on a horizontal surface, the top point V2 of the auxiliary limiting module 300 is 0.5 cm to 5 cm higher than the top point V1 of the primary support module 200. Referring to FIG. 4, the distance D1 between the top point V2 of the auxiliary limiting module 300 and the top point V1 of the primary support module 200 ranges from 0.5 cm to 5 cm in this embodiment. The four corners of auxiliary limiting module 300 feature rounded transition structures. This design ensures more uniform distribution of filling material 300a within peripheral filling zone 103, making auxiliary limiting module 300 less prone to deformation from folding or compression. The outer surface of auxiliary limiting module 300 exhibits a pronounced curved structure, providing enhanced support for the infant's head and back.

[0039] To facilitate adding filling material 300a to the peripheral filling zone 103, a filling opening 104 is provided on the outer surface of the peripheral filling zone 103. Filling material 300a can be filled into the peripheral filling zone 103 through this filling opening 104 or removed from it. A connecting fastener 105 is installed at the filling opening 104 to enable users to quickly open or close it. In this embodiment, the connecting fastener 105 employs a zipper. Users can conveniently open or close the filling opening 104 by pulling the zipper pull. The auxiliary limiting module 300 can adjust its firmness by regulating the filling density of the filling material 300a to accommodate varying support strength requirements. The polyester fiber filling material 300a within the peripheral filling zone 103 has a filling density ranging from 400g / m³ to 700g / m³, meeting the support needs for infants while ensuring comfort during support.

[0040] The cushion of the present disclosure complies with the requirements of Title 16 of the Code of Federal Regulations (CFR).

[0041] Specifically, the cushion of the present disclosure can be tested using the hinged weight gauge 400—newborn (ASTM hinged weight gauge—newborn) provided in Section 1243 of the CFR. The hinged weight gauge 400 provided in the test method of this section includes an upper pressure plate 401 and a lower pressure plate 402. The upper pressure plate 401 simulates the infant's back and head, while the lower pressure plate 402 simulates the lower body below the infant's waist. The upper and lower pressure plates 401 and 402 are hinged together via a pin. Referring to FIGS. 5 and 6, during testing, the cushion is placed on a horizontal surface. The lower pressure plate 402 is positioned on the surface of the primary support module 200, while the upper pressure plate 401 presses against the auxiliary limiting module 300. When the upper pressure plate 401 presses against the auxiliary limiting module 300, it causes a certain degree of elastic deformation in the auxiliary limiting module 300, which remains compliant with the test standards. During testing, the edge of the upper pressure plate 401 must also align with the outermost vertical plane P2 of the auxiliary limiting module 300. At this point, the upper pressure plate 401 forms a certain angle with the horizontal plane P1. This angle is the primary slope angle α of the cushion. Additionally, the surface where the upper pressure plate 401 contacts the auxiliary limiting module 300 is defined as the primary slope surface. In this embodiment, the angle α ranges between 5° and 10°. This angle provides high comfort when the infant's head rests on the auxiliary limiting module 300 while also mitigating potential cervical spine injury caused by excessive angles.

[0042] Additionally, as shown in FIG. 7, the surface of the primary support module 200 becomes plane under slight pressure. Therefore, the slight arcuate protrusion of the primary support module 200 can be neglected, and its upper surface can be approximated as a horizontal plane. Taking the upper surface of the primary support module 200 as the reference plane, this reference plane extends to intersect with the auxiliary limiting module 300. The intersection line serves as the inner wall reference line A1. In the cross-sectional view, the inner wall reference line A1 is represented as a point. The tangent plane of the auxiliary limiting module 300's surface at the inner wall reference line A1 forms the inner wall angle reference plane A2. The angle between the inner wall angle reference plane A2 and the horizontal plane P1 is the inner wall angle β. The inner wall angle β is obtuse. In this embodiment, the inner wall angle β ranges from 90° to 150°. Within this range, the inner wall angle β guides the infant's center of gravity toward the center. This ensures comfort while significantly reducing the likelihood of the infant shifting outside the cushion.

[0043] The beneficial effect of the present disclosure lies in the fact that the cushion integrates two components: the primary support module 200 and the auxiliary limiting module 300. The primary support module 200 constitutes the primary structure for supporting the infant, while the auxiliary limiting module 300 restricts the infant's position, ensuring the infant remains within a specific area when placed on the cushion. In this disclosure, the auxiliary limiting module 300 employs flexible filling material 300a for its assembly, featuring adjustable density. This design combines flexible cushioning, shape-retaining positioning, and adaptable firmness. Coupled with the height differential between itself and the primary support module 200, it forms an encircling positioning space that restricts lateral displacement during human contact.

[0044] Additionally, the obtuse angle formed between the inner walls of the primary support module 200 and auxiliary limiting module 300 guides the user's center of gravity toward the center while preventing sharp contact sensations. The primary slope angle formed between the auxiliary limiting module 300 and the horizontal plane ensures that when an infant's head rests on the auxiliary limiting module 300, comfort is maintained while preventing excessive angles that could cause head injury.

[0045] The above are merely embodiments of the present disclosure and are not intended to limit the scope of the present disclosure. For those skilled in the art, the present disclosure may be subject to various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present disclosure shall be included within the scope of the appended claims.

Examples

embodiment 1

[0036]Referring to FIGS. 1-7, this embodiment discloses a cushion for human body support, including a flexible fabric base layer 100 with a content space. The fabric base layer 100 is generally rectangular and has upper and lower surfaces, with the content space defined between said upper and lower surfaces. Both surfaces of the fabric base layer 100 are stitched with stitching lines 101. The stitching lines 101 on the two surfaces correspond vertically to each other, serving to divide the content space into regions with different functional uses. Among these, the stitching lines 101 sewn near the edge of the fabric base layer 100 is the edge stitching lines 101a. The edge stitching lines 101a follows a circular path, encircling the inner side of the fabric base layer 100's edge and securing the upper and lower surfaces together along this circular path, thereby partitioning the content space. The content space outside the edge stitching line 101a is defined as the peripheral fillin...

Claims

1. A cushion for human body support, comprising:a fabric base layer, having a content space divided into a central filling zone and a peripheral filling zone, wherein the peripheral filling zone is arranged around the central filling zone;an elastic support body disposed within the central filling zone, which lifts the fabric base layer of the central filling zone to form a primary support module for supporting the human body;filling material filled within the peripheral filling zone, supporting the fabric base layer of the peripheral filling zone to form an auxiliary limiting module for restricting the position of the human body;wherein the surface of the auxiliary limiting module is arcuate, when the cushion is laid flat on a horizontal plane, the top point of the auxiliary limiting module is higher than the top point of the primary support module; and the primary slope surface formed between the primary support module and the auxiliary limiting module forms an acute angle α with the horizontal plane, while the inner wall angle β of the auxiliary limiting module is an obtuse angle.

2. The cushion for human body support according to claim 1, wherein the fabric base layer has two opposing surfaces, with edge stitching lines sewn along said surfaces, wherein the edge stitching lines fixes the two surfaces together along a closed annular path and divides the content space into the peripheral filling zone and the central filling zone.

3. The cushion for human body support according to claim 1, wherein center stitching lines are sewn onto the fabric base layer of the primary support module to securely connect the elastic support body to the fabric base layer.

4. The cushion for human body support according to claim 3, wherein the primary support module forms recessed structure at the center stitching lines to enhance friction when contacting the skin, and the recessed structure divides the primary support module into two parts.

5. The cushion for human body support according to claim 4, wherein the primary support module is rectangular, and the center stitching lines are located at the geometric centerline of the primary support module to divide the primary support module into two identical rectangular sections.

6. The cushion for human body support according to claim 1, wherein the peripheral filling zone is provided with a filling opening, and a connecting fastener is installed at the filling opening for opening and closing the filling opening.

7. The cushion for human body support according to claim 1, wherein the angle α formed between the primary slope surface and the horizontal plane is within the range of 5° to 10°.

8. The cushion for human body support according to claim 1, wherein the inner wall angle β is within the range of 90° to 150°.

9. The cushion for human body support according to claim 1, wherein the distance D1 between the top point of the auxiliary limiting module and the top point of the primary support module is within the range of 0.5 cm to 5 cm.

10. The cushion for human body support according to claim 1, wherein the filling density of the filling material in the peripheral filling zone is between 400 g / m³ and 700 g / m³.

11. The cushion for human body support according to claim 1, wherein the filling material is polyester fiber.

12. A cushion for human body support, comprising:a primary support module for supporting the human body;an auxiliary limiting module surrounding the outer side of the primary support module for restricting the position of the human body;wherein the primary support module and the auxiliary limiting module share a common fabric base layer, with edge stitching lines sewn onto the fabric base layer to separate the primary support module and the auxiliary limiting module;wherein the surface of the auxiliary limiting module is arcuate, when the cushion is laid flat on a horizontal plane, the top point of the auxiliary limiting module is higher than the top point of the primary support module; and the primary slope surface formed between the primary support module and the auxiliary limiting module forms an acute angle α with the horizontal plane, while the inner wall angle β of the auxiliary limiting module is an obtuse angle.

13. The cushion for human body support according to claim 12, wherein the auxiliary limiting module is provided with a filling opening, and a connecting fastener is installed at the filling opening for opening and closing the filling opening.

14. The cushion for human body support according to claim 12, wherein the angle α formed between the primary slope surface and the horizontal plane is within the range of 5° to 10°.

15. The cushion for human body support according to claim 12, wherein the inner wall angle β is within the range of 90° to 150°.

16. The cushion for human body support according to claim 12, wherein the distance D1 between the top point of the auxiliary limiting module and the top point of the primary support module is within the range of 0.5 cm to 5 cm.

17. The cushion for human body support according to claim 12, wherein the auxiliary limiting module comprises filling material, and the filling density of the filling material is between 400 g / m³ and 700 g / m³.

18. The cushion for human body support according to claim 17, wherein the filling material is polyester fiber.

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