JP2002085230A - Pillow having improved head traction mechanism - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pillow which has build-up ribs exhibiting a head traction function and can prevent the excessive pressure from being exerted to the head and neck of a user in night time. SOLUTION: The pillow (40) has the build-up ribs (56a, 56b and 56c) which form the top surface of the pillow in contact with the head and neck of the user by inclining at an acute angle with the base surface of the pillow. The inclined ribs impart traction force to the head and neck of the user. The angle of inclination of the ribs changes along the longitudinal direction of the pillow where the vertebral column of the human body is extended. The pillow is recommended to have a back part (46) for supporting the head of the human body and a front part (48) for supporting the head of the human body. The ribs in the rear part extend upward while inclining toward the rear end of the pillow and the ribs of the front part extend upward while inclining toward the front end of the pillow. The traction force in the opposite direction is thereby imparted to the head and the neck.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pillow having an improved head traction mechanism, and more particularly to a pillow which prevents excessive pressure on the user's head and neck at night.

[0002]

2. Description of the Related Art At present, pillows having a surface conforming to the outer shape of a human head or the like are commercially available. Such a pillow is designed to exert effects such as stress reduction on the head and neck from the viewpoint of maintaining health.

[0003] US Patent No. 4,726,087 discloses a pillow made of foam conforming to the shape of the head and neck.
The pillow comprises a plurality of longitudinal ribs having an arcuate cross-section, the ribs having a curved profile having at least two different height rounded protrusions and a central valley located therebetween. Formed collectively. These semicircular cross-section ribs have circular grooves separating their roots from each other and exhibit the function of dissipating heat and moisture. These ribs generally extend upwardly, and the radius of curvature of the ridges of the ribs is generally determined by the thickness of a given contour of the upper surface supporting the head or neck of the pillow.

Another example of a pillow with a top surface having a contour conforming to the contour of the head or the like is disclosed in US Pat.
No. 9,020. The pillow has a longitudinal rib across the top surface of the pillow having a front round protrusion and a rear round protrusion. These ribs stand almost vertically from the upper surface of the pillow, and the shapes of the ribs are alternately changed.

US Pat. No. 5,519,90 to Porth
No. 7 discloses a foam device that relieves tension in the skeletal muscles of the neck. The device comprises a mat of foam material having lateral ribs projecting from the top side. Specifically, a rib that rises obliquely toward the head side is provided on a part of the mat, and a rib that rises obliquely toward the leg is provided on another part of the mat. Thus, the device was injured by the diagonally upstanding transverse ribs, which were bifurcated in two parts, extending the spine in two opposite directions to widen the space between the prostheses. It is intended to relieve nerves and discoid tissue exposed to excessive tension.

[0006]

SUMMARY OF THE INVENTION The present invention is directed to a pillow having raised ribs extending across the top surface thereof, wherein the ribs extend upward at an acute angle from the bottom surface of the pillow. A traction force. The traction depends on the density of the foam forming the rib, the width and the inclination angle of the rib, and the like.

[0007] Specifically, the pillow of the present invention comprises a compressible and resilient body having a front and a back. The anterior and posterior portions are portions for supporting the user's head and neck, respectively, with the user's spine extending generally parallel to the longitudinal direction of the body and generally extending from the rear to the front. The body also has a substantially flat bottom surface. The body may be formed integrally from a compressible and resilient material, or may be formed as a composite consisting of a base and a separate top secured to the base.

[0008] At least a portion of the top surface of the body on which the user's head and neck are supported is provided with raised ribs extending across the body in a direction substantially parallel to each other and perpendicular to the longitudinal direction, each rib having a bottom surface. It may be configured to extend upward until reaching the upper surface of the main body while being inclined at a certain angle with respect to the main body. The ribs may be located on the body such that one or both of the user's head and neck are indicated on those ribs. At least some of the ribs extend upward while tilting toward the rear end of the pillow (ie, away from the user's legs), thereby increasing the user's head and
It may be configured to apply traction to the neck and / or extend the spine of the user. Preferably, the width of the ribs and
The height may be different along the longitudinal direction. For example, by making the ribs relatively narrow and / or relatively short in one part of the pillow and relatively wide and / or relatively long in other parts of the pillow, the degree of support in these parts may be different. Can be made.

[0009] Preferably, the ribs are about 3
It may have a tilt angle from 0 ° to about 80 °. The shape of the rib can be variously changed. According to a preferred embodiment of the present invention, each rib has a lower portion having a first thickness measured across the rib and an upper portion having a second thickness different from the first thickness.
For example, by making the thickness of the upper part larger than the thickness of the lower part, an open groove can be formed between the lower parts of the adjacent ribs to facilitate air circulation in the pillow. Alternatively, the tape may be tapered in a stepwise manner from the root to the upper end of each rib.

According to another preferred embodiment of the present invention, the pillow may have at least one upwardly projecting round projection extending in the width direction of the main body.

According to yet another preferred embodiment of the present invention, the rear and front portions of the compressible body have a rear end and a front end, respectively, of the main body and at least one of the rear ribs. Some are configured to extend upward while tilting rearward toward the rear end, and at least some of the front ribs are configured to extend upward while tilting forward toward the front end. With such a rib configuration, traction forces that separate from each other in the opposite direction can be easily generated at the rear and front portions, the user's head is pulled toward the rear end by the rear ribs, and the user's neck is moved to the front. Can be pulled toward the front end.

Alternatively, a rib extending upward while being inclined forward may be provided at the rear of the pillow, and a rib extending upward while being inclined backward may be provided at the front of the pillow. In the middle part of the pillow between the front part and the rear part, a rib that stands upright in the vertical direction can be provided as necessary.

According to yet another preferred embodiment of the present invention, the main body has an upwardly projecting front circular projection formed at the front portion so as to extend in the width direction of the main body, The front portion of the round projection has at least one rib extending upward while tilting forward toward the front end, and the rear portion of the front round projection rearward toward the rear end. It is configured to have at least one rib extending upward while being inclined. Preferably, the front round protrusion further comprises a wedge-shaped rib having a longitudinal thickness increasing toward the upper surface, the wedge-shaped rib being inclined rearward of the rear portion and inclined forward of the front portion. It is good to be arrange | positioned between the rib which does. By configuring the ribs of the front round protrusion in this way, the front part of the front round protrusion applies traction to the user's neck in the direction toward the user's legs, The rear portion provides an opposite direction of traction to the user's head, so that the user's neck can be effectively stretched.

According to yet another preferred embodiment of the present invention, the pillow further comprises an extension having a lateral width substantially smaller than the width of the body extending longitudinally forward from the front end of the body. Have. The extension has laterally extending raised ribs that extend upwardly at an angle to the bottom surface of the body away from the front end of the body and extend upwardly of the user's neck supported by the extension. The central upper back between the lower side and the scapula may be configured such that traction is applied by the ribs of the extension away from the front end of the body.

The above and other objects, features, and advantages of the present invention will become more apparent from the following description of various preferred embodiments thereof with reference to the accompanying drawings.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS With reference to FIG. 1, a first embodiment of a pillow 10 for supporting a user's head and neck in use according to the present invention will be described. Pillow 10 is comprised of a resilient and compressible body with raised ribs 12 that extend upwardly from the pillow to form an upper surface that contacts the user's head and neck. Here, the rib 12 extends upward while being inclined at an acute angle α with respect to the bottom surface 14 of the pillow 10. Although the bottom surface 14 is depicted as a plane, it may have some non-planar outline. In use, the bottom surface 14 coincides with the top surface of a mattress or other bedding, and the ribs 12 slope at an acute angle to their bottom surface 14 and bedding surface.

When the user's head and neck push down on the upper surface of the pillow 10, the ribs 12 rotate about the root in a direction in which the inclination angle (acute angle) becomes smaller. Friction between the upper surface of the ribs 12 and the user's head and neck creates traction on the head and neck as indicated by arrows 16. In many cases, these tractions have the advantage of relieving the tension in the neck of the user and promoting a more restful sleep.

FIGS. 2 and 4 show another embodiment of the present invention in which the pillow 20 comprises an upper portion 22 and a base portion 24. FIG. The pillow 20 includes a front round protrusion 26 that projects upward from the base 24 and forms a support for the user's neck.
Further, a rib 28 extends upward from the upper portion 22. FIG. 3 is an enlarged view of the rib 28 of FIG. Preferably, each rib 28 includes a lower portion 30 having a first thickness measured across the rib and an upper portion 32 having a second thickness greater than the first thickness. Since the thickness of the lower portion 30 is smaller than the thickness of the upper portion 32, an open groove 34 is formed between the lower portions 30 of the adjacent ribs 28. These open grooves 3
4 facilitates the movement of the ribs 28 for providing traction and also facilitates the diffusion of heat from the user's head and neck.

The lateral dimension, or width D, measured at the top 32 of each rib 28 ranges from about 7.62 to 25.
Preferably, it is in the range of 4 millimeters (in the range of about 0.3 inches to about 1.0 inches), and more preferably in the range of about 17.78 millimeters (about 0.7 inches) or more. The gap S between the adjacent ribs 28 is about 5.08
Preferably it is millimeters (about 0.2 inches).
Each rib 28 extends from about 30 ° to 80 ° relative to the bottom of pillow 20.
It is inclined at an angle within the range of °. The height of each rib 28 can be defined as the distance from the bottom of groove 34 to the top surface of the rib measured along the direction of inclination of rib 28.

It is to be noted that ribs having various shapes such as a rib having a constant thickness or width in the longitudinal direction and a rib tapered stepwise from the base to the upper end can be used.
Also, by changing the width and / or height of the ribs and the gaps between the ribs, it is possible to vary the degree of support of the head and neck. For example, by setting the rib provided on one part of the pillow to be relatively wider and / or narrower than the rib provided on the other part of the pillow, the degree of supporting the head and neck in these two parts is made different. be able to.

The above-mentioned pillow according to the invention is composed of various compressible and elastic materials known to those skilled in the art. For example, foamed plastic and / or foamed rubber has flexibility in addition to robustness and elasticity,
It is preferable as the material of the pillow of the present invention. The top and base of the pillow
It is composed of various known high density, high compressibility materials. Preferably, the base has a density ranging from about 16.02 kilograms to about 48.06 kilograms per cubic meter (ranging from about 1.0 pounds to about 3.0 pounds per cubic foot) and from about 4.54 kilograms to about 3.04 kilograms per cubic foot. 25% of the 18.14 kilogram range (ranging from 10 pounds to 40 pounds)
It may be made from a compressible foam that has a pushing force in bending. The upper part is about 24.0 per cubic meter
Density ranging from 3 kilograms to about 112.13 kilograms (ranging from 1.5 pounds to 7.0 pounds per cubic foot) and density ranging from about 2.72 kilograms to about 11.34 kilograms (ranging from 6 pounds to 25 pounds) 2)
It may be made from a compressible foam having a pushing force at 5% deflection.

FIG. 5 shows a pillow 40 according to another preferred embodiment of the present invention, wherein the ribs are inclined in opposite directions. The pillow 40 is formed from a base 42 and an upper portion 44 and includes a rear portion 46 that supports the user's head and a front portion 48 that supports the user's neck. The rear portion 46 has a rear round protrusion 50 projecting upward, and the front portion 48 has a front round protrusion 52 projecting upward. These round projections 50 and 52 extend in the width direction of the pillow 40 in parallel with each other, and a valley 54 that sandwiches the user's head is formed therebetween.
The rear portion 46 includes a rib 56a extending upward while tilting toward the rear end 58 of the pillow 40, and the front portion 48 includes a rib 56 extending upward while tilting toward the front end 60 of the pillow 40.
b. Preferably, as shown in FIG.
The front round projection 52 has at least one rib 56 a extending upward while being inclined toward the rear end 58 and a front end 60.
At least one rib 56b extending upward while tilting toward. And the front round protrusion 5
2 is a wedge-shaped rib 56c arranged between a rib 56a inclined backward and a rib 56b inclined forward.
It has. The wedge-shaped rib 56c has a wedge shape such that its width in the longitudinal direction increases toward the upper end of the rib. The wedge-shaped ribs 56c are provided to keep the gaps between the upper surfaces of the ribs substantially uniform in the front-back direction of the pillow 40. The rib 56a inclined backward is indicated by an arrow 62.
The ribs 56 b that slope forward are provided with traction in the direction indicated by the arrow 64. Thus, the user's head is pulled toward rear end 58 and the user's neck is pulled toward front end 60. In particular, by pulling the neck toward the front end 60, the spine of the neck is stretched and the muscle tension is released.

FIGS. 6 and 7 show a modification of the pillow shown in FIG. In this modification, the front end 6 of the pillow
Forward extension 70 extending forward from 0 along the longitudinal direction
But attached to the pillow. The front extension 70 includes the pillow 4
A lateral width substantially smaller than the lateral width of 0;
Further, it has an inclined shape substantially similar to a ramp in a grade separation where the front end 72 is the lowest and the rear end 74 attached to the pillow 40 is the highest. The front end 72 is smoothly rounded. The width of the front extension 70 in the lateral direction gradually increases from the front end 72 to the rear end 74. Thus, the front extension 70 has a shape suitable for supporting the central upper back between the underside of the neck and the scapula (most parts of the human body have a slight recess formed in this part). I have. The front extension 70 closes this recess,
The upper back of the human body and the lower side of the neck are more evenly supported throughout.

The front extension 70 has a plurality of ribs 76 extending upward while being inclined toward the side opposite to the front end 60 of the pillow 40. Such ribs 76 provide traction in the direction indicated by arrow 78, thereby effectively distributing the traction over most of the length of the spine.

FIG. 8 shows a pillow 80 according to yet another embodiment of the present invention. This pillow 80 has a base 82 and an upper part 8
4 and a front round projection 86 and a rear round projection 8
8, and valley 90 accommodating the user's head between them
It has. The upper portion 84 has a plurality of ribs 92 that extend laterally across the width of the upper portion 84. The ribs 92 extend upwardly at an angle in the range of 30 ° to 80 °, preferably about 60 °, with respect to the bottom surface of the upper portion 84.

The pillow 80 further includes a narrow connecting wedge 94 between the top and base. A narrow connecting wedge 94 made of foamed plastic or rubber is provided to more reliably support the user's head. The wedge 94 extends between the base and the top with a different density and compressibility than the base and the top. Preferably, the wedges 94 have a density in the range of about 16.02 kilograms to about 60.87 kilograms per cubic meter (in the range of about 1.0 pounds to about 3.8 pounds per cubic foot). The density of the wedge portion 94 is higher than the density of the base portion 82. In order to more reliably support the user's head, the rear end of the wedge portion 94 may be set thicker than the front end. Front round protrusion 86
Has a notch 96 for accommodating the lying user's shoulder.
have.

Front and rear round projections 86 and 88
May have the same dimensions or different dimensions. According to the invention, the upper surface of each round projection is rounded to a shape approximating the curvature of the neck of the human body. Specifically, each round protrusion has a range from about 5.08 centimeters to about 10.16 centimeters (2.0 inches to 4.0 inches) measured along an arc substantially transverse to the ribs 92. It may have a radius of curvature (in the range of inches) or even better, or a radius of curvature of about 2.6 inches (about 2.6 inches).

In order to provide the pillow with partially different rigidity, the upper and lower portions of the pillow preferably have different predetermined compressibility. As discussed above, it is most preferred that the upper portion 84 be softer than the base portion 82 to enhance the user's comfort during sleep while maintaining adequate stiffness on the lower side.

FIG. 9 shows a pillow according to yet another embodiment of the present invention. The pillow 100 is provided with a front round protrusion 102 and a rear round protrusion 104 substantially similar to the pillow in the previous embodiment. The front round protruding portion 102 includes a rib 106 extending upward while being inclined rearward toward the rear end 108 of the pillow 100. The rear round projection 104 includes a rib 110 that extends upward while being inclined toward the front of the pillow 100, that is, toward the front end 112. The central portion between the front and rear round projections 102 and 104 has an upwardly standing rib 114.
The user's neck is supported on ribs 106 of the front round projection 102 where a traction force acts to extend the neck away from the leg.

From the above description of the preferred embodiment, it is apparent that a feature of the present invention is to provide a pillow having a unique top surface with inclined ribs for exerting traction on the user's head and neck. Another feature of the present invention is to provide a pillow having a round projection configured to sandwich a user's head. It is a further feature of the present invention to provide a pillow having an inclined rib and an extension that provides traction to the lower and central upper backs of the human body while supporting them. However, the invention does not
Should not be limited to pillows with / or extensions,
Pillows of other configurations using unique inclined ribs according to the invention are also within the scope of the invention.

Although the present invention has been described in detail based on the preferred embodiments, it is possible to make changes, partial modifications and equivalent means of the present invention without departing from the spirit of the present invention. It is to be understood that the scope of the invention, including such modifications and changes, is defined only by the terms of the appended claims.

[Brief description of the drawings]

FIG. 1 is a side view of a pillow according to one embodiment of the present invention showing the direction of traction on a user's neck and head.

FIG. 2 is a side view of a pillow according to another embodiment of the present invention having a front round protrusion formed from a base and a top.

FIG. 3 is a partially enlarged view of FIG. 2 showing details of an inclined rib.

FIG. 4 is a perspective view of the pillow of FIG. 2;

FIG. 5 is a side view of a pillow according to still another embodiment of the present invention having two types of ribs inclined in opposite directions for applying traction in two opposite directions.

FIG. 6 is a perspective view of a pillow according to yet another embodiment of the present invention having extensions that support the mid-upper back between the underside of the user's neck and the scapula and provide traction to those portions. .

7 is a side view of the pillow of FIG. 6;

FIG. 8 is a perspective view of a pillow having a front round protrusion and a rear round protrusion, wherein a cutout is formed in the round protrusion according to yet another embodiment of the present invention.

FIG. 9 is a side view of a pillow according to still another embodiment of the present invention.

[Explanation of symbols]

10, 20, 40, 80, 100 Pillows 12, 28, 56a 56b, 76, 92, 106, 1,
10, 114 rib 14 bottom surface 22, 44, 84 top 24, 42, 82 base 26, 52, 86, 102 front round protrusion 30 bottom of rib 32 top of rib 34 open groove 46 rear 48 front 50, 88 , 104 rear round protrusion 56 c wedge-shaped rib 58, 108 rear end 60, 112 front end 70 front extension 72 frontmost end 74 rearmost end 90 valley 94 connecting wedge 96 notch

Continuation of the front page (72) Inventor Antonio Acieri 3315, Florida, USA, Fort Lauderdale, South West 4th Avenue 1609 F-term (reference) 3B102 AA09 AB07 AB10 AC01

Claims (19)

[Claims] 1. A pillow comprising a compressible and resilient body having a front portion and a rear portion and having a substantially flat bottom surface, wherein the front portion and the rear portion respectively hold a user's head and neck. A portion for supporting a spine substantially in parallel with a longitudinal direction of the main body and generally extending from the rear portion toward the front portion, wherein the main body includes a raised rib at least in the front portion, and the rib includes: Extending across the body in a direction substantially parallel to each other and perpendicular to the longitudinal direction, wherein at least some of the ribs are inclined at an acute angle with respect to a bottom surface of the body in the longitudinal direction and an upper surface of the body. At least some of the sloping ribs at the front extend upwardly at an acute angle toward the rear, thereby extending upwardly to the front. Traction backward neck of the user occurs direction component after its deflection by the weight of the neck over The upper surface of the rib and the rib is deflected is given, the pillow characterized in that. 2. The pillow according to claim 1, wherein the inclined ribs are each inclined at an angle in a range from about 30 ° to about 80 ° with respect to the bottom surface. 3. The pillow of claim 1, wherein each of the raised ribs comprises a lower portion having a first longitudinal thickness and an upper portion having a second longitudinal thickness different from the first thickness. . 4. The pillow according to claim 3, wherein an opening groove is formed between the lower portions of the adjacent ribs by making the first thickness larger than the second thickness. 5. The pillow according to claim 1, wherein the main body includes at least one upwardly protruding round protrusion extending in a width direction of the main body. 6. The rear part and the front part include ends respectively serving as a rear end and a front end of the main body, and at least some of the ribs of the rear part supporting a user's head are directed toward the rear end. Extending upward while tilting rearward to provide rearward traction to the user's head, at least some of the front ribs supporting the user's neck are directed forwardly toward the front end. 2. The pillow according to claim 1, wherein the pillow extends upward while tilting to apply a forward traction force to the neck of the user. 3. 7. The main body includes a front round protrusion that protrudes upward and that is formed to extend in a width direction of the main body at the front portion, and a front portion of the front round protrusion. Has at least one rib extending upward while tilting forward, and a rear portion of the front round protrusion has at least one rib extending upward while tilting rearward. The pillow according to claim 6, characterized in that: 8. The front round projection further includes a wedge-shaped rib having a thickness in a longitudinal direction increasing toward an upper surface, wherein the wedge-shaped rib is provided on the rear portion of the front round projection. The pillow according to claim 7, wherein the pillow is arranged between at least one rib and the at least one rib of the front part. 9. The pillow further comprises an extension having a lateral width substantially narrower than a width of the main body extending forward in the longitudinal direction from the front end of the main body; A raised rib extending in a direction extending away from the front end of the body while tilting with respect to a bottom surface of the body, the rib extending below a user's neck supported by the extension. The pillow according to claim 1, wherein a traction force is applied to the central upper back portion between the side and the scapula by the rib of the extension in a direction away from the front end of the main body. . 10. A compressible and resilient body having a front portion and a rear portion and having a substantially flat bottom surface and a front end, and a width of the body extending forward from the front end of the body in a longitudinal direction. A pillow comprising an extension having a substantially smaller lateral width, wherein the body extends a user's head and neck substantially parallel to a longitudinal direction of the body and generally from the rear to the front. It is a part to support in the state extended toward
A raised rib extending substantially parallel to each other and across the body in a direction orthogonal to the longitudinal direction, the extension having a raised rib extending laterally, the rib extending from the front end of the body. Extending upwardly inclining relative to the bottom surface of the body in a direction away from, thereby extending the extension relative to the central upper back between the underside of the user's neck and the scapula supported by the extension. A pillow, characterized in that a traction force is applied in a direction away from the front end of the body by the ribs of the part. 11. The rear portion includes an end serving as a rear end of the main body, at least some of the ribs of the rear portion extend upward while being inclined rearward toward the rear end, and wherein the front portion extends upward. 11. The pillow of claim 10, wherein at least some of the ribs of the portion extend upwardly while tilting forward toward the front end. 12. The main body further includes an upwardly projecting front circular projection formed on the front portion so as to extend in a width direction of the main body, and a front portion of the front circular projection. Has at least one rib extending upward while tilting forward, and a rear portion of the front round protrusion has at least one rib extending upward while tilting rearward. The pillow according to claim 10, characterized in that: 13. The front round projection further includes a wedge-shaped rib whose thickness in the longitudinal direction increases toward an upper surface, wherein the wedge-shaped rib is provided on the rear portion of the front round projection. 13. The pillow according to claim 12, wherein the pillow is arranged between at least one rib and the at least one rib of the front part. 14. The body is formed of a base and a top secured to the base, wherein the base has a density in the range of about 16.02 kilograms to about 48.06 kilograms per cubic meter and about 4.5.
25 from 4 kilograms to about 18.14 kilograms
Made from a compressible foam having an indentation force at a% deflection, wherein the upper portion has a density ranging from about 24.03 kilograms to about 112.13 kilograms per cubic meter and about 2.
2 from 72 kilograms to about 11.34 kilograms
14. The pillow of claim 13, wherein the pillow is made from a compressible foam having a pushing force at 5% deflection. 15. A pillow comprising a compressible and resilient body having a front portion and a rear portion and having a substantially flat bottom surface, a front end and a rear end, wherein the front portion and the rear portion are respectively a user's head. And a neck for supporting the user's spine substantially in parallel with the longitudinal direction of the main body and generally extending from the rear to the front, and at least the rear of the main body is substantially parallel to each other. And a raised rib extending across the body in a direction orthogonal to the longitudinal direction, wherein the rear rib supporting the user's head is formed at an acute angle with respect to the bottom surface in a rearward direction toward the rear end. Extending upwardly from the body while tilting, such that the weight of the user's head toward the rear causes the rib to flex, creating a rearward component of the flex on the top surface of the rib, causing the user's spine to flex. A pillow, wherein a rearward traction force is applied to the pillar. 16. A rib is formed on the front part of the pillow supporting a user's neck and the rear part of the pillow supporting a user's head, and at least some of the ribs on the front part are provided at the front end. 16. The pillow according to claim 15, wherein the pillow extends upward while leaning forward toward the front, thereby providing opposing traction to the user's head and neck. 17. A rib is formed on the front portion of the pillow, and at least some of the ribs on the front portion extend upwardly inclining rearward toward the rear end, whereby a user The pillow according to claim 15, wherein a rearward traction force is applied to the neck of the pillow. 18. Having a symmetrical configuration so that it can be used in any of two positions that are 180 ° symmetrical.
A pillow that provides traction to a user's body, comprising a resilient and compressible body, the body having a length along a longitudinal direction from a front end thereof to a rear end thereof and a width along a lateral direction thereof, The main body has an upper surface supporting a user's head and neck, and a bottom surface opposite to the upper surface, which forms a substantially flat surface when the pillow is supported on a flat surface in use. Is an intermediate portion for supporting the user's head, a first neck support portion located between the intermediate portion and the front end of the main body, and between the intermediate portion and the rear end of the main body. A second neck support located on the body, the body has a rib extending laterally on the first neck support and the second neck support, and the rib of the first neck support is While tilting at an acute angle with respect to the flat bottom surface of the body toward the rear end of the body, And the ribs of the second neck support extend upwardly toward the front end of the main body while being inclined at an acute angle with respect to the flat bottom surface of the main body. A first position in which the first neck support is supported and a user's head is supported by the intermediate portion, or a user's neck is supported by the second neck support and the user's head is supported by the intermediate portion The pillow can be used in any of the second positions that are 180 ° symmetrical with respect to the first position, and in any position, when the rib flexes due to the weight of the user's neck on the rib. A pillow, wherein a substantially horizontal component of the deflection is generated in a direction from the user's leg toward the head to apply traction to the spine of the user. 19. A pillow comprising a compressible and resilient body having a front portion and a rear portion and having a substantially flat bottom surface, wherein the front portion and the rear portion respectively hold a user's head and neck. A portion for supporting the spine in a state of being substantially parallel to the longitudinal direction of the main body and extending generally from the rear portion toward the front portion, wherein the main body has at least a raised rib at the rear portion supporting a user's head. Wherein the ribs extend across the body in a direction substantially parallel to each other and orthogonal to the longitudinal direction, and at least some of the ribs are inclined at an acute angle to a bottom surface of the body in the longitudinal direction. The arm extends upward until it reaches the top surface of the body, so that when the rib flexes due to the weight of the user's head toward the rear, the horizontal surface of the flex is placed on the top surface of the rib. Pillow component of tractive force is applied to the body of the user occurs, it is characterized.