Information
-
Patent Grant
-
6640367
-
Patent Number
6,640,367
-
Date Filed
Wednesday, January 23, 200222 years ago
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Date Issued
Tuesday, November 4, 200321 years ago
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CPC
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US Classifications
Field of Search
US
- 005 640
- 005 636
- 005 643
- 005 644
- 005 654
- 005 6553
- 005 490
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International Classifications
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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.
US Referenced Citations (18)