U.S. patent application number 12/048308 was filed with the patent office on 2009-09-17 for window covering fabric and a transverse-moving zebra-stripe shade thereof.
Invention is credited to Li-Ming Cheng.
Application Number | 20090229768 12/048308 |
Document ID | / |
Family ID | 41061716 |
Filed Date | 2009-09-17 |
United States Patent
Application |
20090229768 |
Kind Code |
A1 |
Cheng; Li-Ming |
September 17, 2009 |
Window Covering Fabric and a Transverse-Moving Zebra-Stripe Shade
Thereof
Abstract
A window covering fabric and a transverse-moving zebra-stripe
shade thereof includes a flexible shade with light penetrating
portions located thereon that have a plurality of pores formed in
spaced columns or rows by drilling or punching and opaque portions
which do not have pores. The light penetrating portions and the
opaque portions are spaced from each other alternately. The window
covering fabric thus formed can be installed in an overlapped
fashion in a front side and a back side relative to each other to
become a double-layer zebra-stripe shade and is movable through a
transverse-moving means to make the light penetrating portions and
the opaque portions overlapped or staggered with each other to
facilitate adjustment of indoor lighting or dark condition.
Inventors: |
Cheng; Li-Ming; (Kaohsiung
City, TW) |
Correspondence
Address: |
FRENKEL & ASSOCIATES
3975 UNIVERSITY DR., STE. 330
FAIRFAX
VA
22030
US
|
Family ID: |
41061716 |
Appl. No.: |
12/048308 |
Filed: |
March 14, 2008 |
Current U.S.
Class: |
160/237 ;
160/121.1 |
Current CPC
Class: |
E06B 9/40 20130101; A47H
23/06 20130101; E06B 2009/2405 20130101 |
Class at
Publication: |
160/237 |
International
Class: |
A47H 23/02 20060101
A47H023/02 |
Claims
1. (canceled)
2. (canceled)
3. (canceled)
4. (canceled)
5. A transverse-moving zebra-stripe shade comprising a first
flexible shade and a separate second flexible shade that have
respectively light penetrating portions which have a plurality of
pores formed thereon by drilling or punching in spaced columns or
rows and opaque portions which do not have pores formed thereon,
the light penetrating portions and the opaque portions being spaced
from each other alternately; and a transverse-moving means to move
the first flexible shade transversely.
6. The transverse-moving zebra-stripe shade of claim 5, wherein the
pores of the first flexible shade and the second flexible shade are
formed in a linear fashion.
7. (canceled)
8. The transverse-moving zebra-stripe shade of claim 5, wherein the
opaque portions of the first flexible shade and the second flexible
shade are formed without drilling or punching pores.
9. The transverse-moving zebra-stripe shade of claim 5, wherein the
transverse-moving means moves the first flexible shade while the
second shade is stationary.
Description
FIELD OF THE INVENTION
[0001] The present invention relates to a window covering fabric
and a transverse-moving zebra-stripe shade thereof and particularly
to a window covering fabric to facilitate adjustment of indoor
lighting and dark condition.
BACKGROUND OF THE INVENTION
[0002] There are many different types of window covering fabric 10
on the market to make window coverings such as pleated window
coverings, roman shades and the like. They mainly aim to be
installed at doors and windows of houses to block sunshine and
serve decorative purpose. When in use, referring to FIGS. 1 and 2,
the window covering fabric 10, made by weaving or knitting, has
light-penetrating portions 11 formed with a plurality of pores 111
and opaque portions 12 without pores that are spaced from each
other alternately. The window covering fabric 10 can be formed and
installed in an annular double-layer and overlapped fashion with a
front side and a back side that are moveable through a lift cord
13. Or as shown in FIG. 3, a window fabric consists of a first
flexible shade 10a and a second flexible shade 10b that have
respectively light penetrating portions 11a and 11b, and opaque
portions 12a and 12b, and a transverse-moving means 21 installed on
an upper elongated support 20. Through the lift cord 13 or the
transverse-moving means 21, the first flexible shade 10a or the
second flexible shade 10b can be moved to make the light
penetrating portions 11, 11a and 11b and the opaque portions 12,
12a and 12b overlapped or staggered with each other to adjust
indoor lighting or dark condition. However, the window covering
fabric 10 formed by weaving or knitting as previously discussed
still has drawbacks during production, notably:
[0003] Forming the porous light penetrating portions by weaving or
knitting is a tedious and time-consuming process, and production
cost is higher. Consumers do not have much incentive to purchase.
To boost demand is difficult. All this hinders wider adoption of
the window covering fabric.
SUMMARY OF THE INVENTION
[0004] The present invention aims to provide a window covering
fabric and a transverse-moving zebra-stripe shade thereof that has
a flexible shade including light penetrating portions with a
plurality of pores formed thereon and opaque portions with no pores
formed thereon that are spaced from each other alternately, and can
be installed in a front side and a back side relative to each other
such that the light penetrating portions and the opaque portions
are overlapped or staggered with each other to facilitate
adjustment of indoor lighting or dark condition.
[0005] To achieve the foregoing object, the window covering fabric
according to the invention mainly includes a flexible shade which
has light penetrating portions with a plurality of pores formed
thereon in spaced columns or rows by drilling or punching and
opaque portions which do not have pores. The light penetrating
portions and the opaque portions are spaced from each other
alternately.
[0006] Another object of the invention is to provide a
transverse-moving zebra-stripe shade made from the window covering
fabric previously discussed such that it can be installed in an
overlapped fashion in a front side and a back side relative to each
other, and is movable through a transverse-moving means to make the
light penetrating portions and the opaque portions overlapped or
staggered with each other to facilitate adjustment of indoor
lighting or dark condition.
[0007] The foregoing, as well as additional objects, features and
advantages of the invention will be more readily apparent from the
following detailed description, which proceeds with reference to
the accompanying drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
[0008] FIG. 1 is a perspective view of a conventional window
covering fabric made by weaving or knitting.
[0009] FIG. 2 is a front view according to FIG. 1.
[0010] FIG. 3 is a perspective view of another conventional window
covering fabric made by weaving or knitting.
[0011] FIG. 4 is a front view of the window covering fabric of the
invention.
[0012] FIG. 5 is a perspective view of the window covering fabric
of the invention at the condition in use.
[0013] FIG. 6 is a front view of the window covering fabric of the
invention at the condition in use.
[0014] FIG. 7 is a front view of the window covering fabric of the
invention formed in a transverse-moving zebra-stripe shade.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0015] Please refer to FIG. 4, the window covering fabric according
to the invention mainly includes a flexible shade 30 which has
light penetrating portions 31 with a plurality of pores 311 formed
thereon by drilling or punching in spaced columns or rows, and
opaque portions 32 with no pores formed thereon. The light
penetrating portions 31 and the opaque portions 32 are spaced from
each other alternately.
[0016] The flexible shade 30 may be a textile or non-woven, and the
material being used may be plant fibers or polymers.
[0017] The pores 311 on the light penetrating portions 31 as shown
in an embodiment of the drawing may be formed in spaced columns or
rows in a linear or random fashion.
[0018] Also referring to FIG. 5, when the window covering fabric of
the invention is in practical use, it can be formed in an annular
manner with a front shade 300 and a back shade 301 overlapping with
each other to become a double-layer zebra-stripe shade. Through a
manual-driven lift cord 33 the light penetrating portions 31 and
opaque portions 32 of the front shade 300 and back shade 301 can be
overlapped or staggered with each other to adjust indoor lighting
or dark condition.
[0019] Refer to FIGS. 5 and 6 for an embodiment at the condition in
use. The pores 311 of the light penetrating portions 31 are formed
in spaced columns or rows in a linear or random fashion. When in
use, the lift cord 33 is moved to make the light penetrating
portion 31 and opaque portions 32 of the front and back shades 300
and 301 overlapped or staggered with each other to adjust the
indoor lighting or dark condition.
[0020] Refer to FIG. 7 for another embodiment of the invention. The
window covering fabric of the invention may also be divided into a
first flexible shade 30a and a second flexible shade 30b that have
respectively light penetrating portions 31a and 31b with a
plurality of pores 311a and 311b formed thereon by drilling or
punching and opaque portions 32a and 32b with no pores formed
thereon. The pores 311a and 311b formed on the first and second
flexible shades 30a and 30b may be spaced from each other in
columns or rows in a linear or a random fashion. The window
covering fabric thus made is installed on an upper elongated
support 40 which has a transverse-moving means 41 located thereon.
One end of the first flexible shade 30a is hold pivotally to the
transverse-moving means 41 and coupled with a transmission means
(not shown in the drawings) at one end of the upper elongated
support 40 through a shade lift cord assembly 42 so that a
transverse movement of the first flexible shade 30a can be formed
to adjust the overlapping size of the light penetrating portions
31a and 31b and the opaque portions 32a and 32b of the first and
second flexible shades 30a and 30b, thus lighting and dark
condition can be adjusted as desired.
* * * * *