U.S. patent application number 09/756727 was filed with the patent office on 2002-07-11 for wind pressure releasable umbrella/parasol.
Invention is credited to Liu, Chin-Sung, Yen, Chiu-Chan.
Application Number | 20020088484 09/756727 |
Document ID | / |
Family ID | 25044787 |
Filed Date | 2002-07-11 |
United States Patent
Application |
20020088484 |
Kind Code |
A1 |
Liu, Chin-Sung ; et
al. |
July 11, 2002 |
Wind pressure releasable umbrella/parasol
Abstract
A wind pressure releasable umbrella/parasol each of whose
plurality of main ribs has a brace tied to its lower end at one end
and the other end hung free in a cantilever manner. An upper cover
cloth is shading from the top ends of the main ribs and down to
points corresponding to the free ends of the braces, on the hand, a
lower cover cloth is shading from the free ends of the braces down
to the lower ends of the main ribs. A slit of clearance is formed
between slightly overlapped edges of the two cover clothes so as to
release wind pressure exerted on the umbrella/parasol by allowing
the wind to leak therefrom.
Inventors: |
Liu, Chin-Sung; (Taipei
City, TW) ; Yen, Chiu-Chan; (Taipei Hsien,
TW) |
Correspondence
Address: |
ROSENBERG, KLEIN & LEE
3458 ELLICOTT CENTER DRIVE-SUITE 101
ELLICOTT CITY
MD
21043
US
|
Family ID: |
25044787 |
Appl. No.: |
09/756727 |
Filed: |
January 10, 2001 |
Current U.S.
Class: |
135/33.2 ;
135/26; 135/27; 135/31; 135/33.7 |
Current CPC
Class: |
A45B 25/22 20130101 |
Class at
Publication: |
135/33.2 ;
135/31; 135/33.7; 135/27; 135/26 |
International
Class: |
A45B 019/06; A45B
025/02; A45B 025/00; A45B 025/18; A45B 025/20 |
Claims
What is claimed is:
1. Wind pressure releasable umbrella/parasol essentially
comprising: a spinal column: a top hoop attached to the top end of
said spinal column: a bottom hoop encircling over said spinal
column being able to slide up and down along said spinal column; a
plurality of main ribs whose upper ends being tied to said top
hoop; a plurality of auxiliary ribs each tied to said bottom hoop
with its one end and connected to a proper position at the
corresponding main rib with its other end; a plurality of braces
each tied to the lower end of corresponding main rib with its one
end, and remained hanging free in a contilever manner at its other
end; an upper cover cloth shading from the top end of said main
ribs and down to points corresponding to the free ends of said
braces; and a lower cover cloth shading from the free ends of said
braces and down to the lower end of said main ribs; with this
structure, a slit of clearance is formed between slightly
overlapped edges of the two cover clothes so as to release wind
pressure exerted on said umbrella/parasol by allowing the wind to
leak therefrom.
2. The umbrella/parasol of claim 1, wherein each of said plurality
of braces is inlaid into a containment kerf formed in each of said
plurality of main ribs thereby saving useful space.
3. The umbrella/parasol of claim 1, wherein said lower cover cloth
is provided with a center hole for said main ribs to tunnel through
thereby facilitating installation of said lower cover cloth.
4. The umbrella/parasol of claim 1, wherein said plurality of main
ribs are formed of non-articulated rods.
5. The umbrella/parasol of claim 1, wherein said plurality of main
ribs are formed of rods with multi-articulated joints.
6. The umbrella/parasol of claim 5, wherein said multi-articulated
main ribs are foldable in more than two sections.
Description
BACKGROUND OF THE INVENTION
[0001] 1. Field of the Invention
[0002] The present invention relates to wind pressure releasable
umbrella/parasol, and more particularly, to an umbrella or a
parasol in which a simple improvement is made to a conventional
umbrella/parasol structure so as to form an umbrella or a parasol
being able to evade attack of strong wind.
[0003] 2. Description of the Prior Art
[0004] An umbrella or a parasol is one of the important and
convenient personal accoutrements for a man or a woman to protect
his/her body from rain or sunlight. It is the reason why such a
primitive accoutrement has lasted so long time serving faborably
for human life.
[0005] Meanwhile, there is a bothersome fact that either an
umbrella or a parasol often has to suffer from strong wind attack.
A great wind pressure exerted on the cover cloth of an
umbrella/parasol will possibly flex or even break its ribs
resulting in damaging its function.
[0006] Aiming at the above depicted defects, the present invention
is to propose a newly developed wind pressure releasable
umbrella/parasol that a simple improvement is made to a
conventional umbrella/parasol structure enable it to evade attack
of strong wind. This elaborately designed new structure has come
out through the present inventor's persistent efforts in research
and experiment for a long time which will be disclosed herein.
SUMMARY OF THE INVENTION
[0007] It is an object of the present invention to provide a wind
pressure releasable umbrella/parasol whose cover cloth is splitted
into an upper cover cloth and a lower cover cloth leaving a slit of
clearance therebetween to release the wind pressure.
[0008] It is another object of the present invention to provide a
wind pressure releasable umbrella/parasol that is constructed
simple and handy with a low production cost.
[0009] The aforesaid objects are achieved by an umbrella/parasol
each of whose plurality of main ribs has a brace tied to its lower
end at one end and the other end hung free in a contilever manner.
An upper cover cloth is shading from the top ends of the main ribs
down to points corresponding to the free ends of the braces, one
the other hand, a lower cover cloth is shading from the free ends
of the braces down to the lower ends of the main ribs. A slit of
clearance is formed between slightly overlapped edges of the two
cover clothes so as to release wind pressure exerted on the
umbrella/parasol by allowing the wind to leak therefrom .
BRIEF DESCRIPTION OF THE DRAWINGS
[0010] To enable a further understanding of the innovative and
technological content of the invention herein, refer to the
detailed description of the invention and the accompanying brief
description of the drawings appened below in which:
[0011] FIG. 1 is a schematic view showing the skeleton of the
present invention;
[0012] FIG. 2 is a three dimensional deloped view of the present
invention;
[0013] FIG. 3 is a fragmentary side view showing the skeleton of
the present invention; and
[0014] FIG. 4 is fragmentary view in another embodiment of the
present invention.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
[0015] Referring simultaneously to FIGS. 1 through 3, a wind
pressure releasable umbrella/parasol of the present invention
comprises:
[0016] a spinal column 5;
[0017] a grip 8 provided at the bottom end of the spinal column 5
for the user to hole;
[0018] a top hoop 4 attached to the top end of the spinal column
5;
[0019] a plurality of slightly curved main ribs whose upper ends
tied to the top hoop 4;
[0020] a bottom hoop 6 encircling over the spinal column 5 being
able to slide up and down along the spinal column 5;
[0021] a plurality of auxiliary ribs 3 each tied to the bottom hoop
6 with its one end and connected to a proper position at the
corresponding main rib with its other end so that the auxiliary
ribs 3 are able to push the main ribs 1 upwards following the
movement of the bottom-hoop 6 towards the top hoop 4 when opening
the umbrella/parasol;
[0022] a plurality of braces 2 each inlaid into a containment kerf
formed at the lower end of each main rib 1 with its one end and
remained hanging free in a cantilever manner at its other end for
enhancing the mechanical strength of the main rib 1;
[0023] an upper cover cloth 71 shading from the top ends of the
main ribs 1 and down to points corresponding to the free ends of
the braces 2;
[0024] a lower cover cloth 72 shading from the free ends of the
braces 2 and down to the lower ends of the main ribs 1, the lower
cover cloth is provided with a center hole for the main ribs to
tunnel through thereby facilitating installation of said lower
cover cloth.
[0025] With this structure, a slit of clearance 73 is formed
between slightly overlapped edges of the two cover clothes 71, 72
so as to release wind pressure exerted on the umbrella/parasol by
allowing the wind to leak therefrom and preventing the main and
auxiliary ribs from being flexed or even broken by the wind
attack.
[0026] Referring to FIG. 4, the drawing illustrates another
embodiment of the present invention. As shown in FIG. 4, a main rib
9 is foldable in two, or even in three sections so that the
umbrella/parasol of the present invention is more handy and more
convenient to carry. Rest parts of the structure are identical as
those described in the previous embodiment.
[0027] It reveals from the description of the above embodiments
that the invention has several noteworthy advantages, in
particular:
[0028] 1. The cover cloth is splitted into an upper cover cloth and
a lower cover cloth leaving a slit of clearance therebetween to
release the wind pressure.
[0029] 2. The present invention is constructed so simple and handy
that it is not only convenient to carry but also able to reduce
production cost.
[0030] Those who are skilled in the art will readily perceive how
to modify the invention. Therefore, the appended claims are to be
construed to cover all equivalent structures which fall within
scope and spirit of the invention.
* * * * *