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Description  |
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FIELD OF THE INVENTION
The present invention relates to pillow constructions. More particularly,
the present invention relates to having different effective thicknesses to
accommodate a person's head and provides proper support for the head and
neck for a person's vertical and horizontal sleeping positions.
BACKGROUND OF THE INVENTION
When sleeping, a person commonly uses a pillow for supporting the head and
neck areas. The thickness of the pillow required for proper support varies
from person to person because of shoulder width, head and neck size and
weight. Moreover, the required thickness and support of a pillow depends
on how the person is oriented when sleeping, such as whether a person's
shoulders are horizontal or vertical. In the horizontal shoulder position,
less support is required than in the vertical shoulder position because of
the varying distance between the portion of the head adjacent the bed
surface depending on the position of the shoulders.
Failure to provide the proper support of the head and neck while sleeping
can result in a stiff neck and/or shoulders.
Some persons commonly sleep with two pillows laid on top of each other to
increase the height of support that is provided. Such increased height may
generally provide the proper support when the person's shoulders are in
the vertical position, since the person's head is further away from the
surface of the bed. However, when the person is in the horizontal shoulder
position (prostrate), the pillow support surface is too high for the
support height that is required. Thus, utilizing two stacked pillows also
fails to provide proper sleeping positions when laying flat and prostrate.
A need exists for a pillow that provides optimum head and neck support
regardless of a person's horizontal or vertical shoulder orientation while
sleeping.
SUMMARY OF THE INVENTION
In accordance with the present invention, a pillow construction especially
adapted for sleeping is provided that allows for optimum head and neck
support of a sleeping person regardless of whether the person's shoulders
are oriented in a vertical or horizontal position. Thus, a person's head
is oriented with respect to the shoulders in a position similar to when a
person is standing erect, regardless of whether the sleeping person is on
his side (shoulders vertical to the bed surface) or prostrate (shoulders
horizontal to the bed surface).
The pillow in accordance with the present invention is a multitiered
pillow, preferably having at least two tiers, each tier being of a
generally uniform height. Preferably, the tiers comprise lower and upper
tiers with the upper tier having an actual thickness or an effective
height of approximately two to three times the thickness or effective
height of the first or lower tier. "Effective height" as used herein means
the pillow height at a location of the pillow that is subjected to a
compressive force such as the force created when a person's head is lying
on that location of the pillow.
The upper and lower tiers thus provide optimum sleeping support positions
for the head and neck regardless of whether the sleeping person is laying
down with the shoulders in a horizontal or vertical position. In
accordance with one embodiment, a multitiered pillow is provided that is
composed of an elongated compressible pillow body having a width and a
depth, the pillow body defining a pillow top and a pillow bottom and at
least first and second tiers, the second tier having an uncompressed
height from the pillow bottom of at least about twice the uncompressed
height from the pillow bottom of the first tier, the height of the first
tier being suitable for supporting a person's head while in a prostrate
position and the height of the second tier being suitable for supporting a
person's head while laying on the side. In accordance with another
embodiment, the uncompressed height of each of the tiers is the same or
essentially the same, the second tier having an effective height of about
two to three times the effective height of the first tier.
The elongated pillow body may be composed of a unitary mass of compressible
material, such as foam rubber or other suitably compressible resilient
material. Regions may have different compressibility so as to provide
tiers of the same or essentially the same uncompressed height having
desired effective (compressed) heights (e.g., one tier having an effective
height of about two to three times the effective height of the other
tier). Alternatively, the pillow body may be composed of a plurality of
compartments that contain a pillow packing material, such as goose down or
other suitable packing material. Preferably, the compartments are
segregated from each other and each compartment is associated with only an
upper tier or a lower tier for maintaining the proper relative tier height
or effective height differential.
In one embodiment, the first and second tiers are each composed of a
substantially flat plateau portion relative to the pillow bottom. The
second or higher tier may further include a portion of decreasing height
that extends from the substantially flat plateau portion of that tier.
Also, the longitudinal pillow thickness may decrease along at least one of
the longitudinal pillow ends. Preferably, the pillow bottom curves
upwardly at the longitudinal end of decreasing thickness and is adjacent
the portion of the second tier of decreasing height.
In accordance with another embodiment, the longitudinal cross section of
the pillow body is U-shaped and includes two upper tiers separated by a
lower tier.
In accordance with another embodiment, the pillow body defines a central
upper tier (or greater effective height) and adjacent lower tiers (or
tiers of lower effective height) on either longitudinal pillow side of the
central upper tier.
In accordance with still another embodiment, the pillow body defines an
upper tier (or tier of greater effective height) on one longitudinal side
of the pillow body and a lower tier (or tier of lower effective height) on
the other longitudinal side of the pillow body.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 illustrates in perspective view a pillow in accordance with the
invention being utilized by a sleeping person;
FIG. 2 illustrates a top plan view of the pillow of FIG. 1;
FIG. 3 illustrates a cross-sectional elevation view of the pillow of FIG. 2
along lines 3--3 of FIG. 2;
FIG. 4 illustrates a cross-sectional view of another pillow in accordance
with the present invention;
FIG. 5 illustrates a cross-sectional view of another embodiment of the
pillow in accordance with the present invention;
FIG. 6 illustrates a cross-sectional view of another pillow in accordance
with the present invention;
FIG. 7 illustrates a cross-sectional elevation view of a pillow in
accordance with the invention having three tiers, each of a predetermined
effective height;
FIG. 8 illustrates the pillow of FIG. 7 showing the effective heights of
the different tiers;
FIG. 9 illustrates a cross-sectional elevation view of another pillow in
accordance with the present invention having a central tier of a lower
effective height and adjacent outer tiers of higher effective height;
FIG. 10 illustrates a cross-sectional view of another pillow in accordance
with the present invention having one tier of a lower effective height and
an adjacent tier of a higher effective height;
FIG. 11 illustrates the pillow of FIG. 10 showing the effective heights of
the tiers,
FIG. 12 illustrates a cross-sectional view of another pillow in accordance
with the present invention; and
FIG. 13 illustrates the pillow of FIG. 12 showing the effective heights of
the different tiers.
DETAILED DESCRIPTION
Referring to the Figures generally and in particular to FIGS. 1-3, there is
illustrated a multitiered pillow 10 in accordance with the present
invention. Multitiered pillow 10 defines an elongated pillow body. In the
illustrated embodiment, multitiered pillow 10 is composed of a shell 12
defining a plurality of segregated compartments 14a-e extending the
transverse width of pillow 10 for containing pillow packing material 16.
Shell 12 is composed of outer panels 18a-b which defines the outer limits
of multitiered pillow 10. Shell 12 is also composed of inner panels 20a-c.
Inner panels 20a-c serve to segregate shell 12 into segregated
compartments 14a-e. Typically, outer panels 18a-b and inner panels 20a-c
can be any suitable fabric for pillow 10, such as cloth, for example, and
can be fastened together by any suitable structure, such as by sewing, or
adhesive, for example.
As illustrated in FIG. 3, shell 12 in combination with pillow packing
material 16 defines a plurality of tiers, in this case an upper tier 22, a
lower tier 24 and an upper tier 26, each extending across the transverse
width of pillow 10.
Upper tiers 22 and 26 are of a suitable height for supporting a person's
head and neck when the person is sleeping on his side and lower tier 24 is
of a suitable height for supporting a person's head and neck when the
person is sleeping in a prostrate position, such as person P in FIG. 1.
Each of upper and lower tiers 22, 24 and 26 define a relatively flat
plateau portion relative to bottom 28 of pillow 10. Bottom 28 of pillow 10
includes longitudinal ends 30 and 32 of decreasing thickness, as shown in
FIG. 3. Longitudinal ends 30 and 32 are adjacent with the portion of upper
tiers 22 and 26 that decrease in height from the substantially flat
plateau portion of tiers 22 and 26 towards the longitudinal ends of pillow
10. As a result, the longitudinal ends of pillow 10 provide an area of
decreased thickness thereby providing a lower surface than the
substantially flat plateau portions 22' and 26' of tiers 22 and 26. Thus,
the longitudinal ends 34 and 36 of pillow 10 provide areas of decreased
thickness yet are thicker and higher than lower tier 24, thereby providing
an especially suitable height for supporting the head and neck of a person
laying in between the prostrate and side positions.
Because segregated compartments 14a-e are each associated either with an
upper tier (22 or 26) or a lower tier (24) and such compartments extend
transversely of pillow 10 as do tiers 22-26, packing material 16 in a
particular compartment 14a-e remains associated with that compartment
thereby maintaining the integrity and shape of tiers 22-26.
Alternatively, multitiered pillow 10 could be constructed of a unitary mass
of compressible material, such as foam rubber or other suitable material.
Multitiered pillow 10' of FIG. 6 illustrates such an embodiment in which
pillow 10' is constructed of a unitary mass 38 of foam rubber formed in a
desired shape which is illustrated in FIGS. 1, 2 and 6. In the embodiment
illustrated in FIG. 6, like reference numerals illustrate like shape,
structure and surface contours as set forth in FIG. 3.
Referring to FIG. 4, there is illustrated another multitiered pillow 40 in
accordance with the present invention. As illustrated, multitiered pillow
40 is composed of a shell 42 and pillow packing material 44. Shell 42
defines the shape of multitiered pillow 40 and is composed of panels
46a-c. Panels 46a-c also define segregated compartments 48a-b which define
the multitiers of pillow 40, in this case lower tier 50, upper tier 52 and
lower tier 54.
As illustrated, compartment 48a is associated only with upper tier 52,
thereby preventing pillow packing material 44 adjacent upper tier 52 from
migrating to either of lower tiers 50 and 54. As illustrated, lower tiers
50 and 54 are especially suitable for supporting the head and neck of a
person P and P' when in the prostrate position. Also, upper tier 52 is
especially suitable for supporting the head and neck of a person (not
shown) when laying sideways with the head and neck resting on upper tier
52.
Referring to FIG. 5, there is illustrated another embodiment in accordance
with the invention. A multitiered pillow 60 is provided. Multitiered
pillow 60 is composed of a shell 62 that defines segregated compartments
64a-b that contain pillow packing material 66. Shell 62 is composed of a
single piece of fabric 68 which is folded over onto itself and spaced
apart as illustrated in FIG. 5 to form compartments 64a and 64b.
Shell 62 thereby defines, in combination with packing material 66 an upper
tier 70 and a lower tier 72. Upper tier 70 is especially suitable for
supporting the head and neck of a person P laying on his side while lower
tier 72 is especially suitable for supporting the head and neck portions
of a person P' laying on his back.
Preferably, the uncompressed height H of upper tier 70 as measured from the
bottom 74 of pillow 60 is at least about twice the uncompressed height H'
of lower tier 72 also as measured from bottom 74 of pillow 60. Generally,
the height of the upper tier may be two to three times or more the
uncompressed height of the lower tier in accordance with the invention.
Referring to FIG. 7, there is illustrated another embodiment in accordance
with the invention. A multitiered pillow 76 is provided having three
effective tiers 78, 80 and 82. Multitiered pillow 76 is composed of a
shell 84, having walls 85 and 85', that define segregated compartments
86a-c that contain pillow packing material 88. Shell 84 is composed of
fabric material configured to provide the desired shape for pillow 76 and
the separate compartments 86a-c. Compartments 86a and 86c are packed with
pillow packing material 88 to a substantially greater degree than
compartment 86b. Consequently, tiers 78 and 82, when subjected to the
weight of a person's head laying on the pillow, compress to a lesser
degree than when the person's head is resting on tier 80, as shown in FIG.
8. The weight of a person's head, as shown in FIG. 8 compresses tier 78
such that a height H is achieved which is approximately twice the height,
H', of tier 80. Similarly, the height H" of tier 82 when compressed is
about twice the height of tier 80 when compressed by the weight of a
typical person's head resting thereon. By varying the amount or type of
pillow packing material, the desired effective height of each tier (the
height of the tier when loaded by a normal person's head) can be achieved.
As illustrated in FIG. 8, the effective height of tiers 78 and 82 are the
same or substantially equal. If desired, each of tiers 78, 80 and 82 could
have a different effective height as desired so that, for example, height
H would be the greatest, height H' would be the lowest and height H" would
be an intermediate height. As shown in FIG. 8, height H' is a suitable
height for a person's head when the person P' is laying on his back, and
upper tiers 78 and 82 are of a suitable effective height when a person P
is laying on his side.
Pillow 76' as illustrated in FIG. 12 and 13 is constructed as an inflatable
pillow such that compartments 86'a-c can be inflated to a desired air
pressure in place of or in addition to the presence of some material 88.
By adjusting the pressure in compartments 86'a and 86'c to be greater than
the pressure of compartment 86'b, the desired compressed tier height H',
H" and H'" can be achieved.
Referring to FIG. 9, there is illustrated another embodiment in accordance
with the invention. A multitiered pillow 90 is provided that has effective
tiers 92, 94 and 96, each tier 92-96 having an uncompressed height H such
that the height of uncompressed pillow 90 is essentially uniform. Pillow
90 is composed of a shell 98 which may be constructed of a suitable
fabric. The interior of pillow 90 is composed of foam rubber material 100a
and 100b. Foam rubber material 100a compresses to a lesser degree than
foam rubber material 100b when subjected to a load such as a person's head
laying on pillow 90, as illustrated in FIG. 11. Thus, tiers 92 and 96
provide a compressed height H' and H'" shown with respect to multitiered
pillow 76 of FIG. 8 for effective tiers 92 and 96 and a height H" similar
to that shown with respect to pillow 76 of FIG. 8 for tier 94. If desired,
the foam rubber 100a and 100b which defines effective tiers 92, 94 and 96,
can each be composed of a separate mass that may be adhesively or
otherwise secured together to form a unitary mass that defines the body of
multitiered pillow 90.
Referring to FIGS. 10 and 11, there is illustrated another embodiment in
accordance with the invention. A multitiered pillow 102 is provided having
effective tiers 104 and 106. Tier 104 has an effective or compressed
height H' when a typical person's head P is resting on the pillow that is
approximately two to three times the compressed height H" of tier 106 when
compressed by the weight of a person's head P' resting on that portion of
pillow 102.
While the invention has been described with respect to certain preferred
embodiments, it is to be understood that the invention is capable of
numerous rearrangements, substitutions and changes that are within the
scope of the following claims and it is intended that the invention cover
all such changes, rearrangements and modifications.
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