Functional pillow combined with gel and capable of stably supporting cervical vertebra and helping deep sleep

Abstract

The present invention relates to a functional pillow comprising a cushioning member made of a viscoelastic gel, capable of effectively supporting the cervical vertebra and assisting in deep sleep, the functional pillow comprising: a pillow body comprising: a head center portion where the head of a user is located; a head top portion where the head top of the user is located; the cervical vertebra of the user is located on the cervical vertebra supporting part. The first buffer member is provided on an upper portion of the cervical vertebra support portion, is formed of a viscoelastic material, and has a plurality of through-holes. The pillow body is filled with a second buffer member made of a material different from that of the first buffer member, and the width (D2) of the cervical vertebra supporting part is 25% or more and 40% or less of the total width (D1) of the pillow body.

Description

Technical Field

[0001] The invention relates to a functional pillow, and in particular to a functional pillow comprising a buffer component made of viscoelastic gel to effectively support the cervical vertebrae and help deep sleep. Background Art

[0002] Generally speaking, the cervical spine is the bony portion of the spine that forms the neck between the skull and thoracic vertebrae, from the base of the skull to the upper thoracic vertebrae where the ribs are attached.

[0003] A healthy neck should preferably have a C-shaped curve. When the cervical spine bends in the opposite direction and becomes straight (for example, as the time spent using computers and mobile phones increases, the neck becomes straight), it can cause headaches, frozen shoulders, etc. If this posture occurs repeatedly and the neck becomes stiff, it can lead to cervical disc herniation or lumbar disc herniation in severe cases.

[0004] This posture can also occur during sleep. If the cervical spine is stretched into a straight shape during sleep, the nerves and blood vessels passing through the cervical spine will be compressed, metabolism cannot proceed smoothly, and deep sleep cannot be obtained.

[0005] In order to prevent the occurrence of the above problems, people are increasingly aware of the importance of functional pillows. Functional pillows can enable the cervical spine with incorrect posture during the day to at least maintain a correct C-shaped curve during sleep, thereby helping patients prevent diseases such as intervertebral disc and obtain deep sleep. Therefore, various forms of functional pillows have been proposed.

[0006] Among the functional pillows proposed in the prior art, there is a pillow that uses injection-molded memory foam, whose head support portion is concave and whose cervical vertebra support portion protrudes upward to forcibly support the cervical vertebra in a C shape. This pillow does not naturally form the shape of the pillow by the weight of the user's head, and therefore cannot reflect the different head shapes of each user, which may instead cause discomfort to the user.

[0007] As another form of functional pillow proposed in the prior art, a cushioning member made of elastic material is provided to support the cervical vertebra and head of the user, and the cushioning member is provided on the entire upper surface of the pillow or on both the head support portion and the cervical vertebra support portion. However, this pillow has the following problem: since the cushioning member provides the same elastic force to the user's head and cervical vertebra, the supporting force applied to the center of the head becomes too large, and therefore, the C-shaped curve of the cervical vertebra cannot be effectively formed, or more seriously, there may be a problem of supporting only the center of the head and generating a gap between the cervical vertebra and the pillow. In addition, since the cushioning member is provided on the entire upper surface of the pillow, there is also a problem of increased unit price. Summary of the invention

[0008] Problems to be solved by the invention In order to solve the above problems, the present invention provides a functional pillow. The purpose of the present invention is to effectively lift and support the cervical vertebra by differently constructing a buffer component supporting the central part of the head and a buffer component supporting the cervical vertebra so that there is no gap between the cervical vertebra and the pillow surface.

[0009] In addition, an object of the present invention is to provide a functional pillow that maintains the effect of traction of the cervical vertebra to enable the user to obtain deep sleep, while minimizing the use area of ​​the buffer member supporting the cervical vertebra, thereby reducing the overall production unit price.

[0010] Technical solutions for solving technical problems To achieve the above-mentioned purpose, the embodiment of the present invention includes a pillow body, a pillowcase and a first buffering component, wherein the pillow body includes: a central part of the head where the user's head is located, a top part of the head where the user's head is located, and a cervical vertebra support part where the user's cervical vertebra is located, the pillowcase covers the pillow body in the form of surrounding it, the first buffering component is arranged on the upper part of the cervical vertebra support part, is formed of a viscoelastic material and has a plurality of through holes; the pillow body is filled with a second buffering component composed of a plurality of round particles, and the front-to-back width (D2) of the cervical vertebra support part can be formed in a range of more than 110 mm and less than 160 mm.

[0011] At this time, the first buffer member may be provided to cover more than 50% of the left-right length (L) of the pillow body.

[0012] Furthermore, the first buffer member may include a mixture of a copolymer in which a polystyrene-based polymer and polypropylene are copolymerized, and oil.

[0013] In addition, the second buffer member includes an elastic polymer, and the elastic polymer may be one of a styrene-based polymer, a polyurethane-based polymer, and an ester-based polymer.

[0014] Meanwhile, the pillowcase includes: a pillow cover, which covers the entire outer surface of the pillow body; and a buffer support cover, which is arranged inside the pillow cover and sewn with the pillow cover to support the lower part of the first buffer member.

[0015] In an embodiment of the present invention, a blocking film may be further included, the upper and lower parts of which are sewn to the pillow cover and at least partially block the movement of the second buffer member between the head center portion and the cervical vertebra supporting portion.

[0016] Effects of the Invention According to the present invention, the first buffer member supporting the cervical vertebra is composed of a single body of viscoelastic material, and the second buffer member supporting the center of the head is composed of a collection of multiple round particles gathered together. The cervical vertebra supporting member can effectively lift the cervical vertebra through the elastic force of the first buffer member. In contrast, the second buffer member moves around under the weight of the head, and the center of the head is naturally pressed. In this way, an ideal C-shaped curve is formed in which the head is lowered and the cervical vertebra is lifted, and there is no gap between the cervical vertebra and the pillow surface, achieving the effect of helping the user to sleep deeply.

[0017] Furthermore, according to the present invention, since the first cushioning member manufactured by injection molding or the like is used only in the cervical vertebra supporting portion, the overall production unit price of the functional pillow can be reduced.

[0018] The effects of the present invention are not limited to the above-mentioned effects, and those skilled in the art can clearly understand other effects not mentioned from the description of the claims. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is an oblique view of a functional pillow according to an embodiment of the present invention; Figure 2 The first buffer member and Figure 1 Oblique view of functional pillow separation shown; Figure 3 for Figure 1 A-A' section view; Figure 4 for Figure 3 A magnified view of part B; Figure 5 for Figure 4 2. An oblique view showing the detailed structure of the first buffer member; Figure 6 Shows Figure 1 The upper surface of the functional pillow shown; Figure 7 Shows Figure 1 The functional pillow shown is used in its form; Figure 8 A table showing results of performing an experiment related to sleep quality by changing the region where the first cushioning member is provided. DETAILED DESCRIPTION

[0020] An embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

[0021] Since the present invention can be variously modified and can have various embodiments, specific embodiments will be shown in the drawings and described in detail in the specification. This is not intended to limit the present invention to specific embodiments, but should be interpreted as including all changes, equivalents or substitutes included in the thought and technical scope of the present invention.

[0022] When describing the present invention, the terms first, second, etc. may be used to describe various components, but the components may not be limited by these terms. These terms are only used to distinguish one component from another component. For example, without departing from the scope of the present invention, the first component may be named as the second component, and similarly, the second component may be named as the first component.

[0023] The term "and / or" may include a combination of a plurality of related stated items or any one of the plurality of related stated items.

[0024] When it is mentioned that a component is "connected" or "accessed" to another component, it can be understood that it is directly connected or accessed to the other component, but another component may exist in between. On the other hand, when it is mentioned that a component is "directly connected" or "directly accessed" to another component, it can be understood that there are no other components in between.

[0025] The terms used in the present application are only used to describe specific embodiments and are not intended to limit the present invention. A singular expression may include a plural expression unless there is an obviously different meaning in the context.

[0026] In the present application, the term "comprising" or "having" is intended to specify the presence of features, numbers, steps, actions, components, parts or a combination thereof described in the specification, and may be understood as not excluding in advance the possibility of the presence or addition of one or more other features, numbers, steps, actions, components, parts or a combination thereof.

[0027] Unless otherwise defined, all terms used herein, including technical or scientific terms, may have the same meaning as commonly understood by a person of ordinary skill in the art to which the present invention belongs. Generally, terms, such as those defined in commonly used dictionaries, may be interpreted as having a meaning consistent with that in the context of the relevant technology, and may not be interpreted as an idealized or overly formal meaning unless explicitly defined in this application.

[0028] Furthermore, the following embodiments are provided for a more complete explanation to persons having ordinary knowledge in the art, and the shapes and sizes of elements in the drawings may be exaggerated to provide a clearer explanation.

[0029] Figure 1 is an oblique view of a functional pillow according to an embodiment of the present invention; Figure 2 The first buffer member and Figure 1 Oblique view of functional pillow separation shown; Figure 3 for Figure 1 A-A' cross-sectional view. Figure 4 for Figure 3 Magnified view of part B. Figure 5 for Figure 4 , showing the detailed structure of the first buffer member. Figure 6 Shows Figure 1 The functional pillow shown is the upper surface. Figure 7 Shows Figure 1 The functional pillow is shown in its usage form.

[0030] refer to Figures 1 to 7 , the functional pillow 100 according to the embodiment of the present invention may include a pillow body 110 , a pillowcase 120 and a first buffer member 140 .

[0031] The pillow body 110 includes: a cervical vertebra supporting portion 111 where the user's cervical vertebra is located based on the user's lying state; a head center portion 112 where the user's head is located; and a head top portion 113 where the user's head is located. The cervical vertebra supporting portion 111, the head center portion 112, and the head top portion 113 can be defined as areas formed on the upper surface of the pillow body 110.

[0032] The cervical vertebra supporting part 111 may be curved and extended backward from the front end of the pillow body 110 close to the user's shoulder. At this time, the front-to-back direction of the pillow body 110 is defined as the direction connecting the user's head and neck.

[0033] The head center portion 112 is connected to the cervical vertebra supporting portion 111 and can be extended from the cervical vertebra supporting portion 111 to the rear of the pillow body 110 in a convex curve. The top portion 113 is connected to the rear end of the head center portion 112 and can be extended to the rear end of the pillow body 110 in a convex curve.

[0034] The pillowcase 120 covers the pillow body 110 in a manner of surrounding the pillow body 110. The pillowcase 120 may also accommodate the first buffer member 140 described later together with the pillow body 110. The pillow body 110 may be filled with the second buffer member 130, which is an aggregate of a plurality of round particles. In other words, the pillow body 110 described in the specification of the present invention may represent a structure filled with the second buffer member 130 and surrounded by the pillowcase 120.

[0035] The first buffer member 140 may be configured to cover a portion of the upper surface of the cervical vertebra support portion 111. More specifically, the front-to-back width dimension of the first buffer member 140 may be equal to the front-to-back width dimension D2 of the cervical vertebra support portion 111. The left-right length dimension of the first buffer member 140 may be configured to cover more than 50% of the left-right length dimension L2 of the cervical vertebra support portion 111. (See Figure 6 ) At this time, the left and right length dimensions of the cervical vertebrae supporting portion 111 can be the same as the left and right length dimensions of the pillow body 110.

[0036] The first buffer member 140 may be formed of a viscoelastic material and have a plurality of through holes to maintain the cervical vertebra in a C-shaped curve during sleep. The material and structure constituting the first buffer member 140 will be described later.

[0037] The first buffer member 140 may be composed of a single body (single elastic body), while the second buffer member 130 is an aggregate of a plurality of round particles. The second buffer member 130 is pressed by the force of the user's head so that each particle moves and spreads within the boundary of the area surrounded by the pillowcase 120. In contrast, since the first buffer member 140 is a single elastic body, its movement is restricted, and when the user presses the cervical vertebra against the first buffer member 140, the elastic force acts in the direction of lifting the user's cervical vertebra.

[0038] That is, refer to Figure 7 According to the usage form of the functional pillow 100 of the embodiment of the present invention, when the user lies on the pillow 100, the head is naturally pressed downward along the user's inherent head curvature, and the cervical spine is firmly supported and lifted to form an ideal C-shaped curve.

[0039] The first buffer member 140 may be formed with a certain peripheral thickness. The first buffer member 140 may be provided in an area separated from the second buffer member 130 of the pillow body 110 .

[0040] More specifically, the pillowcase 120 may include pillow covers 121, 122 and a buffer support cover 123, wherein the pillow covers 121, 122 cover the entire outer surface of the pillow body 110, and the buffer support cover 123 is disposed on the inner side of the pillow covers 121, 122 and is sewed with the pillow covers 121, 122 in the form of supporting the lower part of the first buffer member 140 (see Figure 3 ).

[0041] At this time, the pillow covers 121, 122 are divided into an upper cover 121 covering the upper surface of the pillow body 110 and a lower cover 122 covering the lower surface of the pillow body 110, and they can be sewn together to form the pillow covers 121, 122.

[0042] Meanwhile, the first buffer member 140 may be accommodated in the first internal space S1 formed by sewing the upper cover 121 and the buffer support cover 123. The second buffer member 130 may be filled into the second internal space S2 and the third internal space S3 except the first internal space S1. That is, the first buffer member 140 and the second buffer member 130 may be disposed in areas separated from each other.

[0043] Through this structure, an effect of preventing the second buffer member 130 from being caught in the through hole of the first buffer member 140 is achieved.

[0044] In addition, through this structure, the first buffer member 140 is surrounded by the upper cover 121 and the buffer support cover 123 on all sides, so even if the user turns over during sleep, the first buffer member 140 can be prevented from excessively moving.

[0045] Furthermore, with this structure, it is possible to eliminate the use of an adhesive or the like to restrict the movement of the first cushioning member 140 , and thus, even if the user breathes toward the pillow body 110 during sleep, health is not harmed.

[0046] In addition, the average cervical spine of adult men and women has a linear length of 107.5 mm. Therefore, when the user lies down with his shoulders on the front end of the pillow 100, the front-to-back width D2 of the cervical spine supporting portion 111 can be formed to be approximately 110 mm to 160 mm.

[0047] Therefore, taking the total front-to-back width D1 of the pillow body 110 of the conventional pillow 100 as 450 mm as an example, the front-to-back width D2 of the cervical vertebra supporting portion 111 may be formed to be approximately 24% to 35% of D1.

[0048] In addition, in a preferred embodiment of the present invention, each region of the pillow body 110 divided into three equal parts can constitute a cervical vertebra supporting portion 111, a head center portion 112, and a top portion 113. That is, when the width D1 of the pillow body 110 is 450 mm, the cervical vertebra supporting portion 111 can be configured from the front end of the pillow body 110 to 150 mm, the head center portion 112 can be configured from 150 mm to 300 mm of the pillow body 110, and the top portion 113 can be configured from 300 mm to 450 mm of the pillow body 110.

[0049] A virtual first boundary line a1 connecting the cervical vertebra supporting portion 111 and the head center portion 112 may be defined. Similarly, a virtual second boundary line a2 connecting the head center portion 112 and the head top portion 113 may be defined (see Figure 1 and Figure 3 ).

[0050] At this time, a concave portion 115 formed along the virtual second boundary line a2 or overlapping the virtual second boundary line a2 may be provided in the pillow body 110. The concave portion 115 may be provided at the center of the pillow body 110 in the left-right length direction.

[0051] The shape of the recess 115 can be a rectangular or oval shape that is long in the left and right length directions, and the upper and lower surfaces of the pillowcase 120 can be formed by sewing along the periphery of the above shape. Therefore, a region that the second filling member 130 cannot invade is formed within the periphery line of the recess 115.

[0052] This allows the second filling member 130 to be deployed as far as possible to the left or right of the head center portion 112 when the user lies on the pillow 100. In other words, the recess 115 has the effect of blocking the rearward movement of the second filling member 130 (toward the top of the head 113) to a certain extent, while preventing the head center portion 112 from being excessively pressed downward.

[0053] The upper and lower parts of the pillow 100 according to the embodiment of the present invention are sewn with the pillow covers 121 and 122, and may further include a barrier film 150, which at least partially blocks the movement of the second cushioning member 130 between the head center portion 112 and the cervical vertebra supporting portion 111 (see Figure 3 ).

[0054] The upper and lower portions of the barrier film 150 may be sewn respectively to the upper and lower casings 121 and 122. The barrier film 150 extends in the left and right length directions, but is not sewn to the left and right ends of the pillowcase 120 and may be spaced apart by a prescribed distance.

[0055] In other words, the blocking film 150 may prevent the second filling member 130 located at the center of the pillow body 110 from moving from the second space S2 as the lower space of the cervical vertebra supporting portion 111 to the third space S3 as the lower space of the head center portion 112 .

[0056] Thus, when the user's cervical vertebra presses the first filling member 140, the second filling member 130 located thereunder can be prevented from being pushed backward, thereby effectively and firmly supporting the user's cervical vertebra.

[0057] Meanwhile, when the movement of the second filling member 130 is 100% blocked, the height of the cervical vertebra supporting portion 111 may become excessively rigid, and therefore, the blocking film 150 is configured to be unstitched and spaced apart from the left and right ends of the pillowcase 120, thereby partially enabling the movement of the second filling member 130.

[0058] The second buffer member 130 includes an elastic polymer which is one of a styrene-based polymer, a polyurethane-based polymer, and an ester-based polymer. However, the material of the second buffer member 130 is not limited to the above materials as long as it can be formed of a plurality of round particles and does not include plastic deformation.

[0059] The composition for manufacturing the first buffer member 140 may include a mixture of a copolymer of a polystyrene polymer and polypropylene and oil. The polystyrene polymer has a triblock structure. The polystyrene polymer may be SEBS (styrene-(ethylene / buthylene)-styrene Block Copolymer) or SEEPS (Polystyrene-block-poly(ethylene-ethylene / propylene)-block polystyrene). Therefore, the copolymer of a polystyrene polymer and a polypropylene may be PP-SEBS.

[0060] The mixture may contain 30 to 40 wt % of a copolymer of a polystyrene-based polymer and polypropylene and 60 to 70 wt % of oil. When the oil content is less than 60 wt %, the hardness (Shore A) increases, the compression and dispersion effect decreases, the shrinkage rate is large, and it is difficult to eject during injection molding. If it exceeds 70 wt %, the oil and the copolymer are not easily mixed, and injection molding is impossible. Even if injection molding is performed, oil spraying will occur during use. Therefore, the oil content is preferably within the above range.

[0061] The composition may include 5 to 8 parts by weight of the additive based on 100 parts by weight of the mixture consisting of the copolymer and the oil.

[0062] When the content of the additive is less than 5 weight percent, the oil and the copolymer cannot be mixed, and the physical properties will be reduced. When the content exceeds 8 weight percent, the hardness will increase. Therefore, it is preferred to add the additive within the above content range. The additive is to eliminate the oil halo and improve the heat resistance of the gel pad. Dry silica or wet silica can be used.

[0063] Fumed silica can be used as dry silica.

[0064] The composition may further include a heat stabilizer as required to prevent deterioration due to heating during molding. The composition may include 0.3 to 0.7 parts by weight of the heat stabilizer per 100 parts by weight of the mixture consisting of the copolymer and the oil.

[0065] The heat stabilizer may be composed of organic phosphites such as triphenyl phosphite, tris-(2,6-dimethylphenyl)phosphite and tris-(mixture of monononylphenyl and dinonylphenyl)phosphite, or phosphonates such as ditolylphosphonate, or phosphates such as trimethyl phosphate, or a combination thereof.

[0066] The composition may include 0.5 to 5.0 parts by weight of the fragrance oil and 0.05 to 10.0 parts by weight of the antibacterial agent with respect to 100 parts by weight of the mixture consisting of the copolymer and the oil, so as to impart aromatherapy and antibacterial functions to the first cushioning member 140 .

[0067] When the content of the essential oil is less than 0.5 parts by weight, it is difficult to obtain an aromatherapy effect, and when it exceeds 5.0 parts by weight, the physical properties of the composition are reduced. The essential oil may be extracted from at least one of lavender, grapefruit, eucalyptus, rosemary, mint and ylang ylang.

[0068] If the content of the antibacterial agent is less than 0.05 parts by weight, the antibacterial activity value cannot reach 2, and it is difficult to exert the antibacterial effect. If it exceeds 10.0 parts by weight, problems such as bubble generation, property degradation, unformed or unmeasured may occur during the manufacturing process of the first buffer member 140. The antibacterial agent can be an organic antibacterial agent or an inorganic antibacterial agent. The organic antibacterial agent can be zinc benzenesulfonate (Zincbis: 2-pyridinethiol-1-oxide).

[0069] refer to Figure 4 and Figure 5 The first buffer member 140 may include a lower buffer portion 141 and an upper buffer portion 142. The lower buffer portion 141 has a plurality of first through holes 141a extending vertically. Each first through hole 141a has a regular hexagonal cross section. The first through holes 141a are separated from each other by first partitions 141b at a certain interval and arranged horizontally and vertically.

[0070] The upper buffer portion 142 is formed on the upper side of the lower buffer portion 141. The upper buffer portion 142 may be integrally connected to the lower buffer portion 141. The upper buffer portion 142 has a plurality of second through holes 142a extending vertically therethrough. The second through holes 142a have a regular hexagonal cross section larger than the first through holes 141a. The second through holes 142a are separated from each other at a certain interval by second partitions 142b having a thickness thinner than that of the first partitions 141b, and are arranged horizontally and vertically.

[0071] The centers of the first through hole 141 a and the first separator 141 b are formed to coincide with the centers of the second through hole 142 a and the second separator 142 b .

[0072] Therefore, the first buffer member 140 forms a double honeycomb structure by the plurality of first and second through holes 141 a and 142 a , but forms a step due to a thickness difference between the first and second separators 141 b and 142 b .

[0073] A reinforcing rib 143 may be formed in the first and second through holes 141a, 142a. The reinforcing rib 143 may be composed of a structure in which three straight-line ribs are cross-connected at the center. The six ends of the reinforcing rib 143 may be connected to six surfaces at the boundaries of the first partition 141b and the second partition 142b, respectively. Therefore, the reinforcing rib 143 may support the first partition 141b and the second partition 142b in the horizontal direction, thereby increasing the durability of the first buffer member 140.

[0074] Thus, since the first buffer member 140 is made of the above structure and material, the maximum body pressure and temperature and humidity change rates are low compared to ordinary buffer members of a planar structure and made of polyurethane material, and has the effect of shortening the sleep delay time.

[0075] That is, the first partition 141b of the lower buffer portion 141 of the first buffer member 140 facing the pillow body 110 is constructed to be relatively thick so that deformation is minimized and can be stably supported, while the second partition 142b of the upper buffer portion 142 facing the skin of the user's cervical spine can be constructed to be relatively thin to provide comfort.

[0076] Next, we will refer to Figure 8 A change in the sleeping quality according to the arrangement position of the first buffer member 140 is described.

[0077] Figure 8 A table showing results of performing an experiment related to sleep quality by changing the region where the first cushioning member is provided.

[0078] Figure 8 The result table is based on a sleep polysomnography test conducted on 20 subjects, collecting data from 4 channels of EEG, 2 channels of EOG, 1 channel of ECG and 1 channel of EMG.

[0079] As experimental results, the sleep onset delay time reflecting the delay until falling asleep, user satisfaction reflecting subjective sleep quality (collected from a questionnaire after the test), and sleep efficiency (sleeping time / bed time*100) were calculated.

[0080] The experiment was conducted on each subject in a laboratory with an average temperature of 22°C and an average relative humidity of 45% for 8 hours from 10:00 pm to 06:00 am the next day.

[0081] refer to Figure 8 As can be seen from the result table in FIG. 1 , when the first buffer member 140 is only provided on the cervical vertebra supporting portion 111 , the user satisfaction is the highest and the sleeping efficiency is also the highest. The delay time of falling asleep is 13.4 minutes, which is shorter than that of other cases.

[0082] In addition, when referring to Figure 8 When looking at the result table, it can be seen that when the first cushioning member 140 is expanded to the entire area of ​​the pillow body 110, the value of each result is negative. In other words, although the head should be pressed and the cervical vertebra should be raised, since the use area of ​​the first cushioning member 140 is not limited to the cervical vertebra supporting part 111, and as it expands, the user's head is also unnecessarily pulled, so the user will feel uncomfortable, the sleep efficiency will decrease, and the delay time of falling asleep will increase.

[0083] In summary, according to the present invention, the first buffer member supporting the cervical vertebra is composed of a single body of viscoelastic material, and the second buffer member supporting the center of the head is composed of a collection of multiple round particles gathered together. The cervical vertebra supporting member can effectively lift the cervical vertebra through the elastic force of the first buffer member. In contrast, the second buffer member moves around under the weight of the head, and the center of the head is naturally pressed. In this way, an ideal C-shaped curve is formed in which the head is lowered and the cervical vertebra is lifted, and there is no gap between the cervical vertebra and the pillow surface, achieving the effect of helping the user to sleep deeply.

[0084] Furthermore, according to the present invention, since the first cushioning member manufactured by injection molding or the like is used only in the cervical vertebra supporting portion, the overall production unit price of the functional pillow can be reduced.

[0085] Meanwhile, although the present invention is described through limited embodiments and drawings, the present invention is not limited to the above embodiments, and a person skilled in the art in the art to which the present invention belongs can make various modifications and variations according to these descriptions. Therefore, the technical idea of ​​the present invention should be determined only by the scope of the claims, and all equivalent or equivalent variations thereof belong to the scope of the technical idea of ​​the present invention.

Claims

1. A functional pillow that supports the cervical spine and helps deep sleep, characterized in that: include: The pillow body includes: a head center portion where the user's head is located; a head top portion where the top of the user's head is located; and a cervical vertebra supporting portion where the user's cervical vertebra is located; A pillowcase, covering the pillow body in a manner of surrounding the pillow body; and A first buffer member, which is disposed on the upper portion of the cervical vertebra supporting portion, is formed of a viscoelastic material and has a plurality of through holes; The pillow body is filled with a second cushioning member composed of a plurality of round particles. The cervical vertebra supporting portion has a front-back width (D2) in the range of 110 mm to 160 mm.

2. The functional pillow according to claim 1, characterized in that: The first cushioning member is provided to cover more than 50% of the left-right length (L) of the pillow body.

3. The functional pillow according to claim 1, characterized in that: The first buffer member includes a mixture of a copolymer of a polystyrene-based polymer and polypropylene and oil.

4. The functional pillow according to claim 1, characterized in that: The second buffer member includes an elastic polymer, and the elastic polymer is one of a styrene-based polymer, a polyurethane-based polymer, and an ester-based polymer.

5. The functional pillow according to claim 1, characterized in that: The pillowcase comprises: a pillow cover covering the entire outer surface of the pillow body; and A cushioning support sleeve is arranged on the inner side of the pillow cover and is sewn with the pillow cover to support the lower part of the first cushioning member.

6. The functional pillow according to claim 5, characterized in that: Also includes: A barrier film, the upper and lower portions of which are sewn to the pillow cover, at least partially blocks the movement of the second cushioning member between the head center portion and the cervical vertebra supporting portion.

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