U.S. patent application number 11/331132 was filed with the patent office on 2007-07-19 for collapsible window blinds structure.
This patent application is currently assigned to Ching Feng Home Fashions Co., Ltd.. Invention is credited to Wen Ying Liang.
Application Number | 20070163723 11/331132 |
Document ID | / |
Family ID | 38262053 |
Filed Date | 2007-07-19 |
United States Patent
Application |
20070163723 |
Kind Code |
A1 |
Liang; Wen Ying |
July 19, 2007 |
Collapsible window blinds structure
Abstract
A collapible window blinds structure comprises a blind body, a
lift cord set, and a head rail assembly wherein the blind body has
a fastening portion at the top edge, and limiting hoops evenly
spaced and fixed at the rear side surface for the running of lift
cords there-through to wind around pulley seats and a positioning
pulley unit respectively. The head rail assembly includes multiple
connection rods and linking elements flexibly assembled according
to the size of a widow frame. Each connection rod has a vertical
thru-hole for the registration of a fitting portion of the pulley
seats and the positioning pulley unit, and a fastened portion at a
vertical side surface for the attachment of the fastening portion
of the blind body thereto. Therefore, the head rail assembly and
the blind body can be easily stacked and bundled up into smaller
volume for convenient carriage and the storage.
Inventors: |
Liang; Wen Ying; (Changhua
Hsien, TW) |
Correspondence
Address: |
TROXELL LAW OFFICE PLLC
Suite 1404
5205 Leesburg Pike
Falls Church
VA
22041
US
|
Assignee: |
Ching Feng Home Fashions Co.,
Ltd.
|
Family ID: |
38262053 |
Appl. No.: |
11/331132 |
Filed: |
January 13, 2006 |
Current U.S.
Class: |
160/84.01 |
Current CPC
Class: |
E06B 9/262 20130101;
E06B 2009/2622 20130101 |
Class at
Publication: |
160/084.01 |
International
Class: |
A47H 5/00 20060101
A47H005/00 |
Claims
1. A collapsible window blinds structure, comprising a blind body,
a lift cord set, and a head rail assembly wherein the blind body
has a fastening portion disposed at the top edge thereon, and a
plurality of limiting hoops evenly spaced and fixed in vertical
lines at the rear side surface thereon; the lift cord set is
composed of lift cords, pulley seats and a positioning pulley unit
wherein the lift cords are guided through the limiting hoops of the
blind body to wind around the pulley seats and the positioning
pulley unit and fixed to the bottommost limiting hoops thereof
respectively, and the top edges of the pulley seats and the
positioning pulley unit are respectively disposed a protrusive
fitting portion; the head rail assembly includes a plurality of
connection rods and linking elements wherein each connection rod
has a thru-hole disposed at the top plane surface cutting
vertically downwards through to the bottom surface thereof, and the
fitting portion of the pulley seat and the positioning pulley unit
thereof can be reciprocally mounted to the thru-hole of the
connection rod for location thereby; the connection rod also has a
set of coupling holes disposed at both ends for the registration of
the linking elements therewith respectively, and a fastened portion
defining one vertical side surface thereon for the attachment of
the fastening portion of the blind body thereto; therefore, via the
collapsible design of the window blinds wherein the lift cord set
guiding through the blind body is detachably mounted to the head
rail assembly that can also be conveniently dismantled into
separate pieces of the connection rods and linking elements, the
head rail assembly and the blind body can be conveniently stacked
and bundled up into smaller volume, facilitating the carriage and
the storage the window blind thereof as well as saving the material
of package to achieve the economical efficiency thereof.
2. The collapsible window blinds structure as claimed in claim 1
wherein the fastening portion of the blind body can be made up of
hook-side fasteners.
3. The collapsible window blinds structure as claimed in claim 1
wherein the protrusive fitting portion of the pulley seats and the
positioning pulley unit can be shaped in a stepwise configuration
made up of a narrower guidance section and a wider abutted section
thereof.
4. The collapsible window blinds structure as claimed in claim 1
wherein the top side of the fitting portion of each pulley seat and
the positioning pulley unit has a hanging element attached
thereto.
5. The collapsible window blinds structure as claimed in claim 1
wherein the connection rod thereof can be shaped in cylindrical
configuration.
6. The collapsible window blinds structure as claimed in claim 1
wherein the connection rod thereof can also be shaped in
rectangular configuration.
7. The collapsible window blinds structure as claimed in claim 1
wherein the thru-hole of the connection rod can be made in a
rectangular shape correspondingly matched to the protrusive fitting
portion of the pulley seats and the positioning pulley unit
thereof.
8. The collapsible window blinds structure as claimed in claim 1
wherein the interior of the connection rod can be in a hollow-like
configuration.
9. The collapsible window blinds structure as claimed in claim 1
wherein the fastened portion of the connection rod can be made up
of loop-side fasteners.
10. The collapsible window blinds structure as claimed in claim 1
wherein both lateral end edges of the connection rod can be defined
by a plane smooth abutment facet thereon respectively.
11. The collapsible window blinds structure as claimed in claim 1
wherein the linking element is identically shaped in column-like
configuration to fit to the coupling hole of the connection rod
thereby.
12. The collapsible window blinds structure as claimed in claim 1
wherein both end edges of the linking element can be defined by an
arcuate guiding facet thereon respectively.
13. The collapsible window blinds structure as claimed in claim 1
wherein the amount of the lift cords, the pulley seats, and the
positioning pulley unit of the lift cord set thereof can be
flexibly increased or reduced, depending on the position of the
limiting hoops of the blind body.
14. The collapsible window blinds structure as claimed in claim 1
wherein the coupling holes of the connection rod and the linking
element can also be identically shaped in rectangular configuration
to correspondingly fit to each other, permitting each connection
rod to be restrained by the engaged linking element for secure
positioning thereby.
15. The collapsible window blinds structure as claimed in claim 1
wherein the guiding facet defining both end edges of the linking
element can also be made in invert-cornered shape.
16. The collapsible window blinds structure as claimed in claim 1
wherein the coupling holes of the connection rod and the linking
element thereof can also have screw-threaded sections disposed
thereon for secure registration to each other thereby.
17. The collapsible window blinds structure as claimed in claim 1
wherein each coupling hole of the connection rod can also have a
stop seat protruding at the inner wall thereon for the abutment of
the end surface of the linking element thereby, permitting both end
edges of the linking element to evenly mount to the coupling holes
of the connection rod therein so as to ensure an accurate assembly
thereby.
Description
BACKGROUND OF THE INVENTION
[0001] The present invention is related to a collapsible window
blinds structure, comprising a blind body, a lift cord set, and a
head rail assembly wherein the lift cord set guiding through the
blind body is detachably mounted to the head rail assembly that can
also be dismantled into separate pieces of connection rods and
linking elements so that the head rail assembly and the blind body
can be easily collapsed and stacked to be bundled up into smaller
volume, facilitating the carriage and storage of the window blind
as well as saving the material of package to achieve the economical
efficiency thereof.
[0002] Please refer to FIG. 1. A conventional window blinds
structure includes a window blind 10 made up of a head rail 11 and
a blind body 12 directly attached to the underside of the head rail
11 wherein the head rail 11 has a pulley seat 13 mounted at one end
therein for the winding of a lift cord 14 to control the collecting
or expanding operation of the blind body 12 thereby.
[0003] There are some drawbacks to such conventional window blind
structure. Most of all, the head rail 11 of the window blind 10 is
always tailor-made into a certain length to fit to the size of a
certain window frame, and the lift cord 14 is fixedly attached to
the bottom edge of the blind body 12 and guided to wind around the
pulley seat 13 of the head rail 1 1. Therefore, in package, the
blind body 12 and the lift cord 14, determined by the size of the
head rail 11, is restrained to wrap around the head rail 11 and
bundle up into awkwardly bulky volume as shown in FIG. 2, which not
only makes the storage thereof difficult to be done, but also
increases the cost of package and carriage thereof. Thus, the
conventional window blind 10 is quite uneconomical and
uncompetitive on the market.
SUMMARY OF THE PRESENT INVENTION
[0004] It is, therefore, the primary purpose of the present
invention to provide a collapsible window blinds structure,
comprising a blind body, a lift cord set, and a head rail assembly
wherein the lift cord set guiding through the blind body is
detachably mounted to the head rail assembly that can also be
conveniently dismantled into separate pieces of connection rods and
linking elements so that the head rail assembly and the blind body
can be easily collapsed and stacked to be bundled up into smaller
volume without being restrained to wrap around the length of the
conventional head rail above, facilitating the carriage and the
storage of the window blind thereof as well as saving the material
of package to achieve the economical efficiency thereof.
[0005] It is, therefore, the second purpose of the present
invention to provide a collapsible window blinds structure,
comprising a blind body, a lift cord set, and a head rail assembly
wherein the head rail assembly is made up of connection rods and
linking elements reciprocally joined to each other so that the
amount of the connection rods and the linking elements can be
flexibly increased or reduced, depending on the size of the window
frame or blind body without the head rail being individually
tailor-made to fit to different window frames and blind bodies,
economically saving the cost of production to boost the competitive
power thereof on the market as well as to achieve unlimited
versatile assembly thereof.
BRIEF DESCRIPTION OF THE DRAWINGS
[0006] FIG. 1 is a perspective view of a conventional blind body
unfolded in expansion.
[0007] FIG. 2 is a diagram showing the conventional window blind
bundled up for storage.
[0008] FIG. 3 is an exploded perspective view of the present
invention.
[0009] FIG. 4 is an assembled perspective view of the present
invention.
[0010] FIG. 5 is an assembled cross sectional view of the present
invention.
[0011] FIG. 6 is a diagram showing the present invention completely
stacked up for storage.
[0012] FIG. 7 is an assembled perspective view of another
embodiment of the present invention.
[0013] FIG. 8 is an exploded perspective view of another head rail
of the present invention.
[0014] FIG. 9 is an assembled cross sectional view of a third head
rail of the present invention.
[0015] FIG. 10 is an assembled cross sectional view of a fourth
head rail of the present invention.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0016] Please refer to FIG. 3 showing an exploded perspective view
of the present invention. The present invention is related to a
collapsible window blinds structure, comprising a blind body 20, a
lift cord set 30, and a head rail assembly 40 wherein the blind
body 20 has a fastening portion 21 made up of hook-side fasteners
disposed at the top edge thereon, and a plurality of limiting hoops
22 evenly spaced and fixed in vertical lines at the rear side
surface thereon. The lift cord set 30 is composed of lift cords 31,
pulley seats 32 and a positioning pulley unit 33 wherein the lift
cords 31 are guided through the limiting hoops 22 of the blind body
20 to wind around the pulley seats 32 and the positioning pulley
unit 33 and fixed to the bottommost limiting hoops 22 thereof
respectively. In this way, the blind body 20 is raised or lowered
according to the collecting or expanding operation of the lift
cords 31 thereby. The top edges of the pulley seats 32 and the
positioning pulley unit 33 are respectively disposed a protrusive
stepwise fitting portion 321, 331 made up of a narrower guidance
section 3211, 3311, and a wider abutted section 3212, 3312. And a
hanging element 322, 332 is attached to the top edge of the fitting
portion 321, 331 thereof. The head rail assembly 40 includes a
plurality of connection rods 41 and linking elements 42 wherein the
connection rods 41 can be made into cylindrical or
rectangular-shaped rods each having a rectangular thru-hole 411
disposed at the top plane surface cutting vertically downwards
through to the bottom surface thereof. The rectangular thru-hole
411 has a width slightly smaller than that of the abutted section
3212, 3312 thereof. The interior of the connection rod 41 is made
in a hollow shape with a set of coupling holes 412 disposed at both
ends in communication with each other thereof, and one vertical
side surface thereon is disposed a fastened portion 413 made up of
loop-side fasteners. Both lateral end edges of the connection rod
41 are made into a plane smooth abutment facet 414 respectively.
The linking element 42, reciprocally matched to the coupling hole
412 of the connection rod 41, is made into a column-like shape with
an arcuate guiding facet 421 defining each end edge thereon.
[0017] Please refer to FIG. 4 showing an assembled perspective view
of the present invention. The coupling holes 412 of two connection
rods 41 are respectively led along the guiding facets 421 disposed
at both ends of each linking element 42 so as to engage the
connection rods 41 with the linking element 42 till both adjacent
abutment facets 414 of the two connection rods 41 are
correspondingly joined and abutted tight to each other. Another
linking element 42 and a connection rod 41 are applied to the
coupling hole 412 disposed at one opening end of the conjoined
connection rods 41 thereof, permitting the fastened portions 413 of
the connection rods 41 to sequentially join with one another and
form an even flat surface so as to conceal the linking elements 42
therein, completing the assembly of the head rail assembly 40
thereby. The amount of the connection rods 41 and the linking
elements 42 of the head rail assembly 40 can be flexibly increased
or reduced, depending on the size of a window frame or the blind
body 20 thereof so that the fastening portion 21 of the blind body
20 can be uniformly attached to the fastened portion 413 of each
connection rod 41 and the blind body 20 be suspended accurately
downwards from the head rail assembly 40 as a whole set thereby.
And, due to the uninterrupted continuity formed by the fastening
portion 21 thereof, each connection rod 41 is stably positioned and
jointed to each other without the risk of detaching from the
linking elements 42 thereof. Then, the fitting portions 321, 331 of
the pulley seats 32 and the positioning pulley unit 33 of the lift
cord set 30 are respectively guided from bottom to top to mount
into the thru holes 411 of the connection rod 41 till each guidance
section 3211, 3311 thereof extends outwards at the upper side of
the connection rod 41 thereof. Meanwhile, via the design of the
thru-hole 411 slightly smaller than the abutted section 3212, 3312
thereof, the abutted section 3212, 3312 is forced to precisely fit
into the thru-hole 411 and stably positioned therein via a clamping
force formed with the inner wall of the thru-hole 411, permitting
the lift cords 31 to dangle straight downwards in parallel with the
blind body 20 as shown in FIG. 5 so as to easily raise or lower the
blind body 20 in smooth operation thereby.
[0018] Please refer to FIG. 6 showing the window blind of the
present invention completely stacked up for storage. The present
invention can be easily collapsed for package or storage thereof.
The lift cord set 30 guided through the blind body 20 is detachably
mounted to the head rail assembly 40 that, made up of the
connection rods 41 and the linking elements 42, can also be
conveniently dismantled into separate pieces. Therefore, the blind
body 20 along with the lift cord set 30 detached from the head rail
assembly 40 thereof can be collected and stacked up into smaller
size. And the connection rods 41 and the linking elements 42
respectively dismantled can be juxtaposed side by side and put into
the completely stacked-up blind body 20, permitting the window
blind to be bundled up into small volume without the blind body
wrapping around the full-length head rail of the above-mentioned
conventional window blinds so as to save the material of package
for easy carriage as well as convenient storage thereof.
[0019] Please refer to FIG. 7 showing another assembled perspective
view of the present invention. The lift cords 31, the pulley seats
32, and the positioning pulley unit 33 of the lift cord set 30 can
be increased or reduced to at least two rows according to the
position of the limiting hoops 22 of the blind body 20.
[0020] Please refer to FIG. 8 showing an exploded perspective view
of another head rail assembly of the present invention. The
coupling holes 412 of the connection rods 41 and the linking
elements 42 of the head rail assembly 40 thereof can also be
identically made into a rectangular shape for corresponding
registration to each other thereby, permitting each connection rod
41 to stably engage with and restrain by the linking elements 42 in
position thereof. Besides, the guiding facet 421 defining each end
edge of the linking element 42 can be shaped in invert-cornered
configuration.
[0021] Please refer to FIG. 9 showing an assembled cross sectional
view of a third head rail assembly of the present invention. The
coupling holes 412 of the connection rods 41 and the linking
elements 42 of the head rail assembly 40 thereof can also be made
into screw-threaded sections for secure registration to each other
thereby.
[0022] Please refer to FIG. 10 showing an assembled cross sectional
view of a fourth head rail assembly of the present invention. Each
coupling hole 412 of the connection rod 41 can also have a stop
seat 4121 protruding at the inner wall thereon for the abutment of
the end surface of the linking element 42 thereby, permitting both
end edges of the linking element 42 to evenly accommodate and mount
to the coupling holes 412 of the connection rod 42 therein so as to
ensure an accurate assembly thereby.
* * * * *