U.S. patent application number 12/837500 was filed with the patent office on 2011-04-28 for seat cushion.
This patent application is currently assigned to Formosa Sounding Corp.. Invention is credited to Fu-Chieng CHEN.
Application Number | 20110094037 12/837500 |
Document ID | / |
Family ID | 43897124 |
Filed Date | 2011-04-28 |
United States Patent
Application |
20110094037 |
Kind Code |
A1 |
CHEN; Fu-Chieng |
April 28, 2011 |
SEAT CUSHION
Abstract
A seat cushion includes a base board, buffering material,
filling material and an enclosure portion. The base board is a hard
board and has an upper surface. A convex portion is formed on the
front part near the central part of the upper surface. A concave
portion is formed on either side of the convex portion. The layer
of the buffering material and the layer of the filling material may
be arranged in various configurations on the base board. As a user
sits on the cushion of the present invention, his thighs are on the
concave portions and his bottom is on the rear portion of the base
board. In addition, the buffering material can effectively buffer
the sudden downward force exerted by our body while we sit down on
the cushion.
Inventors: |
CHEN; Fu-Chieng; (Taipei,
TW) |
Assignee: |
Formosa Sounding Corp.
|
Family ID: |
43897124 |
Appl. No.: |
12/837500 |
Filed: |
July 16, 2010 |
Current U.S.
Class: |
5/655.5 ;
5/653 |
Current CPC
Class: |
A47C 7/021 20130101;
A47C 7/14 20130101 |
Class at
Publication: |
5/655.5 ;
5/653 |
International
Class: |
A47C 27/00 20060101
A47C027/00 |
Foreign Application Data
Date |
Code |
Application Number |
Oct 23, 2009 |
TW |
098219568 |
Claims
1. A seat cushion, comprising: a base board, having an upper
surface, wherein a convex portion is formed on the front part near
the central part of the upper surface and a concave part is formed
on either side of the convex portion; a buffering material, which
is provided on the upper surface of the base board; and an
enclosure portion, which may enclose the base board provided with
the buffering material.
2. The seat cushion as in claim 1, wherein the base board is made
of wood, plastic or metal.
3. The seat cushion as in claim 1, wherein an upwardly extending
portion is formed in the rear part of the base board.
4. The seat cushion as in claim 1, wherein the buffering material
is made of silica gel, soft rubber, soft synthetic thermoplastic
elastomer gel or latex or PU elastomer.
5. The seat cushion as in claim 1, wherein the buffering material
is provided on the entire area or certain areas of the upper
surface of the base board.
6. A seat cushion, comprising: a base board, having an upper
surface, wherein a convex portion is formed on the front part near
the central part of the upper surface and a concave part is formed
on either side of the convex portion, and wherein a buffering
material and a filling material are provided on the upper surface
of the base board; and an enclosure portion, which may enclose the
base board provided with the buffering material and the filling
material.
7. The seat cushion as in claim 6, wherein the base board is made
of wood, plastic or metal.
8. The seat cushion as in claim 6, wherein an upwardly extending
portion is formed in the rear part of the base board.
9. The seat cushion as in claim 6, wherein the buffering material
is provided on the convex portion and the two concave portions and
the filling material is provided on the areas not covered by the
buffering material.
10. The seat cushion as in claim 6, wherein the buffering material
is provided only on the two concave portions and the filling
material is provided on the areas not covered by the buffering
material and is not provided on the convex portion.
11. The seat cushion as in claim 6, wherein, in manufacturing, a
layer of the filling material is first put on the upper surface of
the base board and then a layer of the buffering material is put on
top of the layer of the filling material.
12. The seat cushion as in claim 6, wherein, in manufacturing, a
layer of the filling material is first put on the upper surface of
the base board and then a layer of the buffering material is put on
top of the layer of the filling material and another layer of the
filling material is put on top of the layer of the buffering
material.
Description
BACKGROUND OF THE INVENTION
[0001] 1. Field of the Invention
[0002] The invention generally relates to a seat cushion. More
particularly, the invention relates to an improved seat cushion
with a base board that mimics the shapes of our thighs and bottom
and in which a buffering material is used for buffering the sudden
downward force exerted by our body as we sit down on the
cushion.
[0003] 2. Description of the Prior Art
[0004] In the prior art, the seat cushion is formed by foam
enclosed by an enclosure portion. Therefore, the cushion can buffer
the downward force exerted by our body as we sit down on the
cushion.
[0005] However, the seat cushion of the prior art has the following
drawbacks:
[0006] 1. Because such foam has a flat surface, the cushion can not
make us sit correctly on it and hence backache may occur after a
long period of use.
[0007] 2. If foam is too hard, it has a limited buffering effect
and a user can be injured when he abruptly sits down on the
cushion. In addition, discomfort usually occurs after the user sits
on the cushion for a period of time.
[0008] 3. If foam is too soft, the user's hip will easily sink into
it. Though it has a good buffering effect, the user's range of
motion may be limited by the cushion.
[0009] 4. Foam becomes less flexible after a long period of use.
Therefore, the cushion of the prior art can not provide enough
support and discomfort would occur (a user's hip may sink deeply
into the cushion as he sits down on the foam cushion).
[0010] From the above, we can see that the cushion of the prior art
has many disadvantages and needs to be improved.
[0011] To eliminate the disadvantages in the prior art, the
inventor has put a lot of effort into the subject and has
successfully come up with the improved seat cushion of the present
invention.
SUMMARY OF THE INVENTION
[0012] An object of the present invention is to provide an improved
seat cushion with a base board that mimics the shape of our bottom
and thighs in sitting position to enable us to sit correctly on the
cushion. Hence the pressure on the pelvis is reduced.
[0013] Another object of the present invention is to provide an
improved seat cushion in which a buffering material is used to
effectively buffer the sudden downward force exerted by our body as
we sit down on the cushion. Therefore, injuries to our body may be
avoided and we can feel quite comfortable when we sit on the
cushion.
[0014] To reach the object, the improved seat cushion of the
present invention is disclosed. The improved seat cushion of the
present invention comprises a base board, buffering material,
filling material and an enclosure portion. The base board is a hard
board and has an upper surface. A convex portion is formed on the
front part near the central part of the upper surface. A concave
portion is formed on either side of the convex portion. An upwardly
extending portion is formed in the rear part of the base board.
Therefore, the base board mimics the shapes of our hip and thighs
in sitting. The buffering material and filling material are
provided on the base board. The layer of the buffering material and
the layer of the filling material may be arranged in various
configurations (side-by-side configuration, overlapping
configuration, etc.). Last, the base board provided with the
buffering material and filling material is enclosed in the
enclosure portion. As a user sits on the cushion of the present
invention, his thighs are on the concave portions and his bottom is
on the rear portion of the base board. Therefore, the user may sit
correctly on the cushion. In addition, the buffering material and
filling material can effectively buffer the sudden downward force
exerted by our body as we sit down on the cushion. Therefore,
bodily injuries to our body may be avoided. Moreover, we can feel
quite comfortable when we sit on the cushion due to the support
provided by the buffering material, filling material and base
board.
BRIEF DESCRIPTION OF THE DRAWINGS
[0015] FIG. 1 is a perspective view showing the first embodiment of
the present invention.
[0016] FIG. 2 is another perspective view showing the first
embodiment of the present invention.
[0017] FIG. 3 is a perspective view showing the second embodiment
of the present invention.
[0018] FIGS. 4A and 4B are two perspective views showing the third
embodiment of the present invention.
[0019] FIGS. 5A and 5B are two perspective views showing the fourth
embodiment of the present invention.
[0020] FIGS. 6A and 6B are two perspective views showing the fifth
embodiment of the present invention.
[0021] FIGS. 7A and 7B are two views showing the improved seat
cushion of the present invention in use.
DESCRIPTION OF THE PREFERRED EMBODIMENT
[0022] Please see FIGS. 1 and 2, which illustrate the first
embodiment of the present invention. The improved seat cushion of
the present invention comprises a base board 1, buffering material
2, filling material 3 and an enclosure portion 4.
[0023] The base board 1 is a hard board and has an upper surface
11. A convex portion 12 is formed in front of the central part of
the upper surface 11. A concave portion 13 is formed on either side
of the convex portion 12. An upwardly extending portion 14 is
formed in the rear part of the base board 1. Therefore, the base
board 1 mimics the shapes of the hip and thighs in sitting. The
base board 1 is made of wood, plastic or metal.
[0024] The buffering material 2 covers the convex portion 12 and
the two concave portions 13. The buffering material 2 has a high
degree of flexibility and a high level of buffering effect. The
buffering material 2 may have the form of a net or a solid entity
as according to the actual need. Also, the buffering material 2 is
made of silica gel, soft rubber, soft synthetic thermoplastic
elastomer gel (or latex), PU elastomer or other flexible
material.
[0025] The filling material 3 covers the areas that are not
provided with the buffering material 2 on the upper surface of the
base board 1. The filling material 3 is made synthetic of foam,
artificial fibers or natural fibers.
[0026] The enclosure portion 4 can enclose the base board 1
provided with the buffering material 2 and filling material 3. The
enclosure portion 4 is made of woven fabric or knitted fabric.
[0027] Please see FIG. 3, which illustrates the second embodiment
of the present invention. The differences between the first
embodiment and the second embodiment are that, in the latter, the
buffering material 2 is provided on the concave portions 13 and the
convex portion 12 is not provided with the buffering material 2 and
filling material 3.
[0028] Please see FIGS. 4A and 4B, which illustrate the third
embodiment of the present invention. The difference between the
first embodiment and the third embodiment is that, in the latter,
the filling material 3 and buffering material 2 are provided on the
entire area (as illustrated in FIG. 4A) or certain areas (as
illustrated in FIG. 4B) of the upper surface 11 of the base board
1.
[0029] Please see FIGS. 5A and 5B, which illustrate the fourth
embodiment of the present invention. The difference between the
third embodiment and the fourth embodiment is that, in the latter,
an additional layer of the filling material 3 is provided on top of
the buffering material 2. In the fourth embodiment, these three
layers are provided on the entire area (as illustrated in FIG. 5A)
or certain areas (as illustrated in FIG. 5B) of the upper surface
11 of the base board 1.
[0030] Please see FIGS. 6A and 6B, which illustrate the fifth
embodiment of the present invention. The difference between the
third embodiment and the fifth embodiment is that, in the latter,
only the buffering material 2 is used and the buffering material 2
may cover the entire area (as illustrated in FIG. 6A) or certain
areas (as illustrated in FIG. 6B) of the upper surface 11 of the
base board 1.
[0031] In any of the five embodiments described before, glue may be
used to join the buffering material 2 and filling material 3 with
the base board 1.
[0032] The enclosure portion 4 may have the form of two thin
sheets. In manufacturing, the peripheries of the two sheets of the
enclosure portion 4 are processed by high frequency waves or
ultrasonic waves so that the enclosure portion 4 may enclose the
buffering material 2, filling material 3 and hard board 1.
[0033] Alternatively, the enclosure portion 4 may have the form of
an envelope. The enclosure portion 4 has at least an opening to
enclose the buffering material 2, filling material 3 and hard board
1. A sealing device may be disposed by or along the opening and may
seal the opening. The sealing device may be a zipper, a zipper-like
design, buttons or other device.
[0034] The enclosure portion 4 is made of leather, synthetic
leather or woven fabric.
[0035] Please see FIGS. 7A and 7B, which illustrate the improved
seat cushion of the present invention in use. First, a user 6
places the improved seat cushion of the present invention on the
sitting portion 51 of a chair 5. As he sits on the improved seat
cushion, his thigh bones 61 rest on the concave portions 13 and his
hip 62 rests on the rear portion of the base board 1 and is pressed
against by the upwardly extending portion 14 so that he can sit
correctly on the improved seat cushion. As the user 6 sits down on
the improved seat cushion, the sudden downward force and his body
weight may be buffered by the buffering material 2 and the filling
material 3 and the buffering material 2 would become deformed so as
to absorb the sudden downward force exerted by his hip and to avoid
injuries to the user's sitting bones.
[0036] In comparison to the prior art, the improved seat cushion of
the present invention has the following advantages:
[0037] 1. In the improved seat cushion of the present invention,
the base board mimics the shapes of our hip and thighs to enable us
to sit correctly on the cushion.
[0038] 2. The buffering material may effectively buffer the sudden
downward force exerted by our body while we sit down on the
cushion. Therefore, injuries to our body may be avoided and we can
feel quite comfortable when we sit on the cushion.
[0039] Although several embodiments of the present invention have
been described in detail hereinabove, it should be understood that
these embodiments are to be regarded in an illustrative manner
rather than a restrictive manner, and all variations and
modifications of the basic inventive concepts herein taught still
fall within the scope of the present invention.
[0040] From the above, we can see that the improved seat cushion of
the present invention meets the relevant patent requirements. It is
hoped that the patent application will be approved.
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