Pillows

Information

  • Patent Grant
  • 6640367
  • Patent Number
    6,640,367
  • Date Filed
    Wednesday, January 23, 2002
    22 years ago
  • Date Issued
    Tuesday, November 4, 2003
    21 years ago
Abstract
An improved pillow consisting of a curved plate, a cushion having a thin middle portion and thick end portions and which may optionally consists of at least one inflatable air bag, and a fabric which encloses the cushion and the curved plate; the curved plate optionally consisting of at least two curved segment plates linked together by at least another curved plate; an improved pillow having an upper surface which has a valley in the center and a peak at each end.
Description




BACKGROUND OF THE INVENTION




1. Field of the Invention




This invention relates to improvements on pillows such that an improved pillow allows the neck (the vertebrae cervicales) of a person who is lying on a bed to be in a natural comfortable position. One variation of the improved pillow not only allows a user's neck to be in a natural comfortable position but also allows the user to reposition his/her head on the pillow easily. The other variation of an improved pillow allows a user to easily adjust its heights.




2. Descriptions of the Prior Arts




No prior art related to the improved pillows was found.




SUMMARY OF THE INVENTION




Generally speaking, an ordinary pillow has uniform thickness. When an ordinary pillow is too thin (too low) comparing to half of the width of a sleeper's shoulder, the neck of the sleeper lying sideways bends downwards. In order to keep a side-lying sleeper's neck straight, a thick (high) pillow must be used. But, when the pillow is too thick (too high), the neck of the face-up sleeper bends forwards. The bent neck may pinch the nerves that come out from the Foramen inter-vertebrates. The pinches may hamper the relaxation or the rests of the nerves and may eventually cause pains to any over-used upper limbs. Therefore, a pillow that allows a sleeper to keep a straight neck is needed.




One of the objectives of the current invention is to improve a pillow such that it will provide supports to the head of a sleeper and to keep the neck of the sleeper in a straight relaxed position at all time. The other objective of the current invention is to device an improved pillow so that it can allow a sleeper to flip his/her facing direction easily. Another objective of the invention is to provide means to adjust the heights of a pillow easily.




These and other objects and advantages of the invention, as well as the details of an illustrative embodiment, will be more fully understood from the following specification and drawings, in which:











DRAWING DESCRIPTION





FIG. 1

is an isometric view of the first variation of an invented improved pillow.





FIG. 2

is a sectional view of the invented device shown in FIG.


1


.





FIG. 3

is an isometric view of the second variation of an invented improved pillow.





FIG. 4

is a sectional view of the invented device shown in FIG.


3


.





FIG. 5

is an isometric view of the third variation of an invented improved pillow.




FIG.


6


and

FIG. 7

illustrate the disadvantages of using the ordinary pillows.





FIG. 8

,

FIG. 9

, FIG.


10


and

FIG. 11

illustrate the uses of the first variation of the improved pillow. The user is facing up in FIG.


8


and

FIG. 9

while the user is facing sideways in FIG.


10


and FIG.


11


. In FIG.


8


and

FIG. 10

, the sectional views of the improved pillow are shown.




FIG.


12


and

FIG. 13

illustrate the uses of the second variation of the improved pillow. The user is facing up in

FIG. 12

while the user is facing sideways in FIG.


13


. The sectional views of the improved pillow are shown in FIG.


12


and FIG.


13


.




FIG.


14


and

FIG. 15

illustrate the uses of the third variation of the improved pillow. The user is facing up in

FIG. 14

while the user is facing sideways in FIG.


15


.











GENERAL DESCRIPTION




Three variations of the invented improved pillows are introduced herein in this specification.




Referring to

FIGS. 1 and 2

, the first variation of an invented improved pillow


1


consists of a cushion


10


, a curved plate


11


, and a fabric


12


. The cushion has thin center portion and two thick edge portions. The cushion is made of any suitable material such as cotton packs, foams, inflatable air bags, feathers, saw dusts, leaves, seeds, etc. The fabric is made of any suitable fabrics such as clothes, silks, leathers, etc. The curved plate is made of any suitable material such as plastics, metals, carbon fibers, glass fibers, etc. The cushion is on the concave side of the curved plate. The fabric encloses the curved plate and the cushion together. The curved plate provides a hard curved surface on the bottom of the improved pillow so that the improved pillow can rock easily on a bed. The curved plate creates the valley


13


and the peaks


14


for the improved pillow. The cushion at the valley of the improved pillow is thinner than that of the peaks.




Referring to

FIGS. 3 and 4

, the second variation of an invented improved pillow


15


consists of a cushion


16


, a curved plate


17


, and a fabric


18


. The cushion is made of any suitable material such as cotton packs, foams, inflatable air bags, feathers, saw dusts, leaves, seeds, etc. The fabric is made of any suitable fabrics such as clothes, silks, leathers, etc. The curved plate is made of any suitable material such as plastics, metals, carbon fibers, glass fibers, etc. The curved plate consists of two long curved plates


19


and


20


joined by at least one short curved plate


21


(only one shown in FIG.


4


). Hinges


22


or glue-backed fabrics such as duct-tapes (not shown) makes the joining. The cushion is on the concave side of the curved plate. The fabric encloses the curved plate and the cushions together. The curved plate provides a hard curved surface on the bottom of the improved pillow. The curved plate helps to create a valley


23


and two peaks


24


for the improved pillow. The cushion at the valley of the improved pillow is thinner than that of the peaks.




Referring to

FIG. 5

, the third variation of an invented improved pillow


5


has a saddle-shaped upper portion that has a valley


25


and two peaks


26


. The improved pillow is made with a cushion wrapped by a fabric. The cushion is made of any suitable material such as cotton packs, foams, inflatable air bags, feathers, saw dusts, leaves, seeds, etc. The fabric is made of any suitable fabrics such as clothes, silks, leathers, etc.




Referring to

FIG. 6

, when an ordinary pillow


27


is too thin (low) comparing to half of the width of a sleeper's shoulder


28


, the neck


29


of the sleeper lying sideways on a bed


31


bends downwards. This phenomenon is illustrated exaggeratedly with the spine


32


shown in FIG.


6


. Therefore, in order to keep a side-lying sleeper's neck straight, a thick (high) pillow must be used. Referring to

FIG. 7

, when an ordinary pillow


33


is too thick (too high), the neck


34


of the sleeper


35


facing up on a bed


36


bends forwards. The spine


37


shown in

FIG. 7

exaggerates the bend.




Referring to FIG.


8


and

FIG. 9

, when an upwards facing sleeper


38


lying on a bed


39


uses the first variation of an improved pillow


1


, the sleeper's head


40


is on the valley


13


of the improved pillow. Because the valley of the improved pillow is relatively thin (low), the sleeper's neck


41


is in its natural position. The sleeper's spine


42


is in correct position.




Referring to FIG.


10


and

FIG. 11

, when a sideways facing sleeper


38


lying on a bed


39


uses the first variation of an improved pillow


1


, the sleeper's head is on one of the peak


14


of the improved pillow. Because of the thick (high) cushion at the peaks of the improved pillow, the sleeper's neck


41


does not bend downwards but is in its natural position. The sleeper's spine


42


is in correct position.




The curved hard back of the improved pillow enables the sleeper to roll his/her head easily. When the sleeper rolls on the bed, his/her head rolls. The rolling of his/her head causes the improved pillow to roll. This rolling enables the sleeper's head to change smoothly from the thick (high) peak to the thin (low) valley, or vice versa, of the improved pillow. When the cushions are made of inflatable air bags, their lightweights will make the rolling even easy. When the cushions are made of inflatable air bags, for an example one air bag for the valley portion and one air bag for each of the peak portion, the heights of the cushions can be easily adjusted to the comforts of a sleeper.




Referring to

FIG. 12

, when a upwards facing sleeper


43


lying on a bed


44


uses the second variation of an improved pillow


15


, the sleeper's head


45


is on the valley


23


of the improved pillow. The weight of the head


45


pushes the valley


23


downward and the peaks


24


upwards. As a result, the back of the improved pillow is a curved surface. Because the valley of the improved pillow is relatively thin (low), the sleeper's neck is in its natural position.




Referring to

FIG. 13

, when a sideways facing sleeper


43


lying on a bed


44


uses the second variation of an invented improved pillow


15


, the sleeper's head


45


is on one of the peak


24


of the improved pillow. Due to the weight of the peaks as well as the existence of the short curved plate


21


and the hinges


22


, the other peak


46


which the head


45


is not on remains lying on the bed


44


. In this way, the rolling of the head


45


will need only to roll half of the weight of the improved pillow. Because of the thick (high) cushion at the peaks of the improved pillow, the sleeper's neck is in its natural position.




Referring to

FIG. 14

, when a upwards facing sleeper


47


lying on a bed


48


uses the third variation of an improved pillow


5


, the sleeper's head


49


is on the valley


25


of the improved pillow. Because the valley of the improved pillow is relatively thin (low), the sleeper's neck will be in its natural position.




Referring to

FIG. 15

, when a sideways facing sleeper


47


lying on a bed


48


uses the third variation of an improved pillow


5


, the sleeper's head


49


is on one of the peaks


26


of the improved pillow. Because of the thick (high) cushion at the peaks of the improved pillow, the sleeper's neck is in its natural position. The major drawback of using this third variation of the improved pillow is that when the sleeper rolls, the sleeper needs to raise or lower his/her head to use either the peak or the valley of the improved pillow.




The foregoing is considered as illustrative only of the principles of the invention. Furthermore, since numerous modifications and changes will readily occur to those skilled in the art, it is not desired to limit the invention to the exact construction and operation shown and described, and accordingly all suitable modifications and equivalents, may be resorted to, falling within the scope of the invention as claimed.



Claims
  • 1. An improved pillow consists ofa) a cushion; b) a relatively rigid curved plate which consists of at least two curved segment plates pivotably linked together, wherein each curved segment plate consists of a single upwardly facing concave surface; c) a fabric; d) said cushion being on the concave side of said curved plate; e) said fabric enclosing said cushion and said curved plate.
  • 2. The improved pillow of claim 1 wherein said cushion has a thin middle portion and thick end portions.
  • 3. The improved pillow of claim 1 wherein said cushion consists of at least one inflatable air bag.
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