U.S. patent application number 12/074926 was filed with the patent office on 2009-09-10 for umbrella system with support for internal storage of cover and external sliding ribs and stretchers.
Invention is credited to Andrea Elgin Beyer, Steven Larsen Beyer.
Application Number | 20090223545 12/074926 |
Document ID | / |
Family ID | 41052347 |
Filed Date | 2009-09-10 |
United States Patent
Application |
20090223545 |
Kind Code |
A1 |
Beyer; Andrea Elgin ; et
al. |
September 10, 2009 |
Umbrella system with support for internal storage of cover and
external sliding ribs and stretchers
Abstract
The present invention relates to an umbrella system,
substantially comprising an umbrella with elements that include a
hollow shaft, a cover, as well as a frame consisting of ribs and
stretchers mounted on the exterior of the hollow shaft. When
retracted, the cover is stowed inside the shaft. When deployed, the
umbrella's cover is supported by ribs and stretchers as well as by
the shaft. Ribs and stretchers slide along the hollow shaft's
exterior as the invention's cover is deployed and retracted. This
configuration of deployment elements is not seen in the prior art
of umbrella construction. It allows use of accouterments that
expand the invention's use and convenience. The umbrella may be
constructed using materials having low coefficients of electrical
conductivity such fiberglass, plastics, or composites, thereby
reducing shock risks. The manner of the invention's construction
also enhances its ability to resist damage due to excessive wind as
well as unwanted transfer of moisture from its retracted cover.
Inventors: |
Beyer; Andrea Elgin; (Staten
Island, NY) ; Beyer; Steven Larsen; (Staten Island,
NY) |
Correspondence
Address: |
Andrea Elgin Beyer
112 Delafield Avenue
Staten Island
NY
10301-2606
US
|
Family ID: |
41052347 |
Appl. No.: |
12/074926 |
Filed: |
March 7, 2008 |
Current U.S.
Class: |
135/31 ; 135/16;
135/34.2 |
Current CPC
Class: |
A45B 19/00 20130101;
A45B 23/00 20130101; A45B 25/18 20130101 |
Class at
Publication: |
135/31 ;
135/34.2; 135/16 |
International
Class: |
A45B 25/00 20060101
A45B025/00; A45B 25/24 20060101 A45B025/24; A45B 25/02 20060101
A45B025/02 |
Claims
1. An umbrella structure comprising: (a) a cover, a substantially
hollow shaft, a plurality of elongated elements providing means for
urging and supporting said cover relative to said hollow shaft, (b)
a plurality of elements providing means to stabilize said plurality
of elongated elements, (c) said cover providing means to
substantially shield underlying space from certain environmental
factors, (d) said hollow shaft providing means to substantially
contain said cover when the cover is retracted, (e) cooperating
elements providing means for ribs and stretchers to substantially
slide as they urge said cover relative to said hollow shaft.
2. An umbrella structure comprising: (a) a cover, a hollow shaft, a
plurality of ribs, a plurality of stretchers, and a plurality of
cooperating deployment elements, (b) said cover providing means to
substantially shield underlying space from environmental agents
including rain, snow, and direct sunlight, (c) said hollow shaft
providing means for substantially containing said cover when the
cover is retracted, (d) said ribs and said stretchers, mounted
externally on said hollow shaft, provide means to substantially
support said cover, while the cover is deployed, (e) said
cooperating elements providing means for said externally mounted
ribs to substantially slide into their deployed positions, (f)
cooperating elements substantially including a plurality of rib
collimators, deployment slider, track slot, and stretcher-rib
sliders mounted on the outside of said hollow shaft.
3. An umbrella structure comprising: (a) a cover, a hollow shaft, a
plurality of ribs, a plurality of stretchers, and a plurality of
cooperating elements, (b) said cover providing means for
substantially shielding space beneath from certain environmental
factors, (c) said hollow shaft providing means for substantially
containing said cover, when the cover is retracted, (d) said hollow
shaft providing means for supporting additional elements of said
umbrella including a plurality of said ribs and a plurality of said
stretchers, (e) Said ribs and said stretchers, mounted externally
on said hollow shaft, provide means to act as trusses, in support
of said cover, when said cover is deployed, (f) said cooperating
elements providing means for said externally mounted ribs to
substantially slide, along and parallel to, exterior of said hollow
shaft while said cover is being deployed and retracted.
4. The umbrella structure of claim 3, wherein said plurality of
ribs, said plurality of stretchers, and said cooperating elements,
mounted externally to said hollow shaft provide means to urge said
cover relative to said hollow shaft.
5. The umbrella structure of claim 4, wherein said plurality of
ribs are attached at their lower ends to a slider, said slider
providing means to transmit forces to said ribs and cooperating
elements thereby urging said cover's during deployment and
retraction operations.
6. The umbrella structure of claim 5, wherein said hollow shaft
contains a plurality of track slots that provide means for the
guidance and transmission of urging force communicated from said
deployment elements located exterior to said hollow shaft to said
deployment elements located within the hollow shaft.
7. The umbrella structure of claim 6, wherein: (a) said cover is
attached at its center to a cover hub slider substantially
contained within said hollow shaft, (b) said cover hub slider
providing means for the substantial central support of said cover,
(c) said cover hub slider provides means for transmitting urging
force to said cover, (d) said ribs and said stretchers, mounted
externally on said hollow shaft, move relative to said hollow shaft
during deployment and retractions of said canopy, (e) the ribs and
the stretchers substantially slide longitudinally, radially, or in
combination thereof, relative to said hollow shaft as said cover is
urged relative to said hollow shaft, (f) said ribs are linked to
said cover hub slider providing means for cooperative movement
during deployment and retraction of said cover, (g) a water
resistant cap provides means for substantial interdiction of
unwanted liquid water flow from the interior of said hollow shaft
while said cover is in a retracted position, while additionally
providing means for passage of water vapor by osmosis through a
selectively permeable membrane, accumulating such moisture in an
absorbant material, then subsequently allowing release of said
moisture by diffusion to the external ambient air via a plurality
of vent orifices, (h) a water resistant elongated gasket provides
means for substantially interdicting unwanted water flow from said
hollow shaft via said track slot while said cover is in its stowed
location, said elongated gasket also providing means for
progressive passage of said deployment slider--cover hub slider
slot link along the track slot during urging operations relating to
the deployment of said cover, (i) an outer sheath that when
deployed provides means to substantially encompass said hollow
shaft, said ribs, said stretchers, and cooperating elements when
said cover is stowed within the hollow shaft.
8. The umbrella of claim 7, wherein said ribs, said stretchers,
said rib collimators, and said track slot are oriented so as to
provide means for their urging along a substantially helical path
relative to the primary longitudinal axis of said hollow shaft.
9. The umbrella of claim 3, wherein said hollow shaft contains a
collapsible sleeve providing means to be extended, thereby
substantially covering said hollow shaft and cooperating
elements.
10. The umbrella of claim 3, wherein said hollow shaft and
cooperating elements are encompassed by an external handle cylinder
providing means for service as an extended handle after said handle
cylinder is substantially urged relative to said hollow shaft.
11. The umbrella of claim 3, wherein retractable support elements
provide means that enable free standing use of substantial
embodiments of said invention.
Description
CROSS-REFERENCE TO RELATED APPLICATIONS
[0001] (Not Applicable)
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT
[0002] (Not Applicable)
REFERENCE TO A SEQUENCE LISTING.
[0003] (Not Applicable)
BACKGROUND OF THE INVENTION
[0004] Many types of umbrellas are in use worldwide. Outdoor
experiences are enhanced by their availability for the interdiction
of adverse environmental factors. Umbrella sizes range from small
handheld models to large mounted structures capable of shielding
several people.
[0005] Along with known benefits of umbrellas, it is generally
acknowledged that some vexing issues may compromise their use.
Excessive wind is a particular bane. Handheld models are often
subject to irreversible damage during high wind events. It is not
unusual to see many wrecked and discarded umbrellas along
sidewalks-after windy storms. While the delicate linkages in many
handheld umbrellas are particularly subject to wind damage, even
the more substantial "garden" varieties may also suffer.
[0006] In addition to concerns about survivability of umbrellas in
wind, the possibility of electrocution during lightning storms is
also an issue. Furthermore, after rain ceases, furled wet and
dripping handheld umbrella covers can be a nuisance. Although
umbrellas are often purchased with supplementary sleeves for
storage, in practice these accessories tend to be misplaced and
unused.
[0007] The present invention solves important umbrella issues
including 1) secure storage of cover, 2) durability, 3) control of
moisture from the stored cover, and 4) reduction of potential for
injury from electric hazards.
FIELD OF THE INVENTION
[0008] United States Patent Class 135/15.1; 19.5; 135/20; 135/22;
135/25.1; 25.33; 25.41; 28; 31; 33.2; 33.7
DESCRIPTION OF RELATED ART
TABLE-US-00001 [0009] 139,295 May 1873 Chevers 429,160 June 1890
Sprague 892,813 July 1908 Dolles 1,885,968 November 1932 Wedemann
2,164,242 August 1938 Henry 135/33 3,534,752 October 1970 Vanzini
135/20 4,202,363 May 1980 Watts et al 135/98 4,422,468 December
1983 Wilson 135/97 5,188,137 February 1993 Simonelli 135/19.5
5,385,162 January 1995 Wu 135/48 5,690,131 November 1997 Voigt
135/19.5 6,273,111 August 2001 Weiss et al 135/25.41 6,338,353
January 2002 Chen 135/20.3 6,345,637 February 2002 Ko 135/22
6,571,814 June 2003 You 135/33.7 6,672,323 January 2004 Gupta et al
135/136 6,701,947 March 2004 Ramos 135/34 6,766,814 July 2004
Perreault 135/31 6,805,144 October 2004 Usui et al 135/34.2
7,178,535 February 2007 Eder 135/28
[0010] Striving to provide reliable and efficient deployment,
support, and retraction of umbrella covers, inventors have proposed
many solutions.
[0011] FOR EXAMPLE, U.S. Pat. No. 139,295, to Chevers, May 27, 1873
teaches a combination umbrella and cane with hollow shaft, having
detachable cap and ferrule to adapt the invention for alternate use
as a cane. Cover, ribs, and stretchers are stored within the hollow
shaft during use as a cane. For use as an umbrella, stowed elements
are removed from an opening at one end of the shaft and screwed
onto the shaft's opposite end, thereby enabling the device's
function as an umbrella. While the invention's main advantage is
optional use as either cane or umbrella, internal storage of the
cover has serendipitous advantages including reducing moisture
transfer to external surfaces.
[0012] FOR EXAMPLE, U.S. Pat. No. 429,160, to Sprague, Jun. 3, 1890
describes an eye and "U" loop method of connecting ribs and
stretchers of an umbrella canopy allowing relatively easy
replacement of broken rib and stretcher components. Today, frame
breakage due to excessive wind remains a common correlate of
umbrella use.
[0013] An enduring source of vexation for umbrella users is the
tendency of wet umbrella covers, stowed externally around folded
frame and shaft, to drip on surfaces such as clothing, luggage,
floors, interiors of vehicles, and furniture. Deposition of such
moisture can result in unsightliness, discomfort, perhaps even
permanent damage.
[0014] Concerns, both practical and esthetic are related to
externally stowed umbrella covers. Such covers allow transfer of
water to surfaces that normally are dry.
[0015] In teaching internal containment of umbrella covers several
of the inventors cited below refer to internal storage as it
relates to the dripping cover issue. References are also seen to
the appearance of unkempt, wet umbrella covers furled outside
folded umbrella frames.
[0016] Concerns associated with the containment of umbrella covers
have long engaged inventors.
[0017] FOR EXAMPLE, U.S. Pat. No. 892,813, to Dolles, Jul. 7, 1908
teaches an umbrella whose cover, ribs, stretchers, and stick, when
collapsed, are capable of being retracted into a hollow shaft.
[0018] FOR EXAMPLE, U.S. Pat. No. 1,885,968, to Wedemann, Nov. 1,
1932, describes an umbrella cover somewhat similar to that of
Dolles, with added provision for a telescoping stick and segmented,
folding ribs.
[0019] FOR EXAMPLE, U.S. Pat. No. 2,164,242, to Henry, Jun. 27,
1939, teaches an umbrella comprised of a hollow shaft constructed
and assembled to provide means for housing the umbrella cover and
frame in said shaft.
[0020] Rather than enclosing conventually downward folded umbrella
rib and stretcher linkages within a hollow shaft, alternate
solutions have been proposed involving upward folding.
[0021] FOR EXAMPLE, U.S. Pat. No. 3,534,752, to Vanzini, Oct. 20,
1970, teaches internal storage of an umbrella cover, as well as
upwardly folded ribs and stretchers within a hollow umbrella shaft.
Furthermore a method of twisting said elements during closing of
the umbrella is described.
[0022] FOR EXAMPLE, U.S. Pat. No. 5,188,137, to Simonelli, Feb. 23,
1993, teaches an umbrella consisting of a hollow shaft with open
top, a collapsible cover mounted on said shaft, and a mechanism for
operating said cover so that when it is placed in a closed position
it is stored within the hollow shaft. When this invention's cover
is to be opened, a plurality of ribs is said to urge it outward
from the open top above the hollow shaft. No stretchers are
indicated in this invention.
[0023] FOR EXAMPLE, U.S. Pat. No. 5,690,131 to Voigt, Nov. 25,
1997, also teaches an umbrella cover stowed within a hollow shaft,
as well as a plurality of flexible strips that pass between roller
bearings as they urge the cover during deployment. As in the above
example, no stretchers are included in this invention.
[0024] FOR EXAMPLE, U.S. Pat. No. 6,273,111, to Weiss et al, Aug.
14, 2001, teaches a retractable umbrella including a cover, a
plurality of ribs, and a plurality of stretchers. Said cover is
supported at its center by an extended shaft, and on its periphery
by attachment to tips of said ribs. No additional cover support is
indicated. Said cover and frame elements are contained within a
hollow shaft when folded.
[0025] The additional issue of potential damage to umbrella
mechanisms while deployed has been considered by a number of
inventors.
[0026] FOR EXAMPLE, U.S. Pat. No. 6,345,637, Feb. 12, 2002, to Ko
teaches an automatic opening, wind resistant, umbrella structure
made of fiberglass reinforced plastics. It describes an improved
and simplified construction having enhanced strength.
[0027] A particularly resilient material having potential for use
with umbrella frame construction is seen in the following
teaching.
[0028] EXAMPLE, U.S. Pat. No. 6,672,323, to Gupta, et al, Jan. 6,
2004, describes a multipurpose self-erecting structure providing
advanced insect protection and storage characteristics. It is
primarily designed to provide military sleeping accommodations for
individual soldiers while also having folded dimensions that allow
containment and transportation within a soldier's rucksack. Gupta
proposes use of a material composed of vinyl polyester and
fiberglass in combination, with trade name "vinylester", for use in
flexible extended elements of the invention's frame. An additional
advantage of employing non-metallic materials, having low intrinsic
coefficients of electrical conductivity, in umbrella construction
is that such use reduces the risk associated with use during
electric storms.
[0029] Prior art provides examples of attempts to devise forms of
enclosure, other than within a hollow shaft, for shielding umbrella
covers when said covers are in retracted modes.
[0030] FOR EXAMPLE, U.S. Pat. No. 6,805,144, to Usui et al,
proposes a set of telescoping thin walled cylinders, each
concentric with the umbrella's stick. These cylinders, graded in a
sequence of diameters, extend to form a substantially conical
envelope enclosing the furled cover and rib system of a handheld
umbrella.
[0031] Other solutions include:
[0032] FOR EXAMPLE, U.S. Pat. No. 6,701,947 B1, Mar. 9, 2004, to
Ramos, who describes a flexible bag for containment of a wet
umbrella, additionally providing means for later disposal of water
accumulated from said umbrella.
REFERENCES TO SPECIFIC PROBLEMS OF RELATED ART
[0033] Extensive and varied examples of umbrella prior art beg the
question of why many of the solutions taught are not commonly seen
actualized in the marketplace. Certain umbrella concerns remain
issues because devices, including many of those referenced above
apparently have innate disadvantages. Examination of several
teachings addressing concerns about the tendency of umbrella
coverings to drip while furled reveal pervasive problems.
[0034] FOR EXAMPLE, U.S. Pat. No. 139,295, May 27, 1873, to Chevers
teaches a combination umbrella and cane with hollow shaft, with
detachable cap and ferrule to adapt it for use as a cane. While
this invention offers protection to its stowed cover, the sequence
of manual operations required appears to be cumbersome for
convenient transitions between cane and umbrella modes.
[0035] Concerns about broken canopy deployment and support elements
have been addressed.
[0036] FOR EXAMPLE, U.S. Pat. No. 429,160, Jun. 3, 1890 to Sprague
describes an improved eye and "U" loop method of connecting ribs
and stretchers of an umbrella canopy. It was noted that the
invention allows relative ease of replacement of broken rib and
stretcher components. Today, over a century later, fragile
structural elements of many handheld umbrellas remain vulnerable to
wind damage. Furthermore, in today's economy, the labor intensive
process of repairing umbrella mechanisms is not cost effective.
[0037] FOR EXAMPLE, U.S. Pat. No. 6,338,353, Jan. 15, 2002, to
Chen, teaches a handheld four segment umbrella comprising a shank,
rib assembly, opening spring, control mechanism, and a plurality of
rib linkage elements. Structures taught are complex and fragile.
Components are in the tradition of umbrella deployment structures
vulnerable to irreversible damage from excessive wind forces. This
invention exemplifies the evolution of rib and stretcher deployment
and support mechanisms that provide for compactness at the price of
increased fragility. The plethora of delicate metal parts taught in
this invention allows considerable risk for permanent damage from
deforming forces including those associated with wind. Examination
of urban sidewalks after wind storms can provide ample
demonstrations of umbrella wreckage, attesting to the need for
innovative, more durable umbrella construction.
[0038] FOR EXAMPLE, U.S. Pat. No. 7,174,906, Feb. 13, 2007, to Ko
teaches a folding umbrella frame having sets of six ribs, arranged
as linkages. It further exemplifies ubiquitous, fragile
construction of some contemporary handheld umbrella deployment
mechanisms. Use of materials having increased strength to weight
ratio compared to metals are also taught. Although large outdoor
umbrellas of the "garden" variety are often constructed of wood
having relatively low coefficients of electrical conductivity, many
umbrellas, particularly handheld models, are substantially made of
metal. Such construction increases dangers from ambient high
voltage electricity such as that associated with lightning
storms.
[0039] FOR EXAMPLE, U.S. Pat. No. 6,345,637, Feb. 12, 2002, to Ko
teaches an automatic opening wind resistant umbrella structure made
of fiberglass reinforced plastics. It describes an improved and
simplified construction, reinforced combination strength, plus
reduced opportunity for conduction of electricity. However the
invention still contains fragile linkage joints susceptible to high
wind events that might exceed elastic limits of plastic elements,
possibly resulting in permanent damage to the umbrella.
[0040] Further examples of internal storage of umbrella cover such
as those of covers as taught.
[0041] For Example, U.S. Pat. No. 2,164,242, Aug. 6, 1938, to
Henry, teaches an umbrella with a two segment telescoping shaft
that may be extended to encompass a furled covering and retracted
frame. However the covering, when deployed, is kept in place
exclusively by ribs. As is inherent in such arrangements, gusts of
winds tend to invert frames consisting only of ribs that lack the
reinforcement provided by stretchers.
[0042] FOR EXAMPLE, U.S. Pat. No. 5,188,137, to Simonelli, Feb. 23,
1993, teaches an umbrella cover deployed and supported by a set of
flexible arching elongated elements. As in the previous example, a
significant difficulty with this system is relatively low rigidity
provided to its deployed cover. In order to provide sufficient
flexibility during cover deployment, minimally supported ribs may
prove to be too flexible for effective service in windy conditions.
Umbrella ribs unsupported by stretchers appear capable of
responding with considerable flexure to external forces including
those induced by a walking umbrella user.
[0043] FOR EXAMPLE, U.S. Pat. No. 5,690,131 to Voigt, Nov. 25,
1997, Although use of roller bearings appears to facilitate
deployment of an internally stowed cover, when actually deployed
this invention's cover would appear to suffer the same lack of
rigidity seen in the teaching of Simonelli. In practice, it remains
hard to imagine an elongated member capable of bending from an
essentially vertical orientation during cover storage, then curling
to a radial configuration, while also being capable, without
additional support, of resisting compromising effects of wind and
other potentially deforming forces.
[0044] FOR EXAMPLE, U.S. Pat. No. 6,273,111, Aug. 14, 2001, to
Weiss et al takes note of the above limitations. In an attempt to
eliminate issues of cover flopping during deployed modes, Weiss et
al teaches use of a set of radial extending arms supported from
above by a corresponding support arm. The umbrella's cover is in
turn centrally supported by an extended shaft, and peripherally by
tips of essentially horizontal extending arms. At least two
concerns with the invention are apparent. It's cover appears free
to vibrate in the wind inasmuch as it is not attached to any
support member between said cover's center and the cover's
periphery. This configuration appears to be unable to enforce ample
congruency between cover and extended ribs. That condition, in
turn, would allow reduced cover tautness compared to that commonly
seen in umbrella covers that are fully deployed. Furthermore, by
their inherent rigidity, extending ribs of this disclosure appear
rather vulnerable to excessive winds that could exceed structural
limitations, thereby resulting in permanent deformation. Such
unfortunate results are commonly seen in damaged umbrellas.
Although apparently more resistant to inversion than the two
previous examples., the cover of this invention does appear to be
subject to excessive floppiness. An additional concern relates to
the manner in which this invention's center shaft extends downwards
from the containment chamber during cover retraction. Rather than a
more conventional example, where a compact umbrella's stick
retracts by telescoping into a wider upper member, here we see
taught a stick extension during retraction that doubles the
in-service length of this umbrella. It appears to be a rather
cumbersome solution.
[0045] Another issue of umbrella construction is a tendency of wet
covers on handheld models to drip after being furled. Clothing,
contents of brief cases, purses, flooring, and furniture all may be
compromised by coming into contact with wet retracted umbrellas.
Internal storage of covers have been proposed in the these examples
as solutions to this issue.
[0046] FOR EXAMPLE, U.S. Pat. No. 6,701,947 B1, Mar. 9, 2004, to
Ramos, describes a flexible bag used to contain a wet umbrella
while providing means for later disposal of water accumulated from
said umbrella.
[0047] In order to shield a furled cover and cooperating deployment
and support elements external attached coverings are taught.
[0048] FOR EXAMPLE, U.S. Pat. No. 6,805,144, Oct. 19, 2004, to Usui
et al, proposes a set of nesting thin walled cylinders concentric
with the shaft of an umbrella. These extend in a series, forming an
essentially conical envelope enclosing the retracted cover and rib
system of a handheld umbrella. Such cylinders appear to present a
somewhat unwieldy package when retracted on an umbrella stick.
BRIEF SUMMARY OF THE INVENTION
[0049] From the descriptions above, advantages of our umbrella
deployment, support, and containment system become evident.
Accordingly, several objects and advantages of the present
invention are:
[0050] (a) The invention provides enclosed storage space for an
umbrella's retracted cover, thereby substantially preventing wet
covers from transferring liquid water to exterior surfaces. The
invention provides means to collect unwanted interior moisture in
absorbant material and subsequently allowing passage of this
moisture, by the process of evaporation, through orifices to the
outside air.
[0051] (b) Internal storage of said cover also has the advantage of
mitigating potential damage to the cover while said cover is not in
active service.
[0052] (c) The umbrella cover is deployed and supported by
externally mounted ribs. Ribs are in turn substantially stabilized
and reinforced by means of cooperation with a plurality of
stretchers thereby forming essentials of a truss system. These
structures obviate several inherent instabilities associated with
certain examples of internally stowed umbrella canopies and rib
elements seen in prior art.
[0053] (d) The ribs and stretchers substantially slide along the
exterior of the umbrella's hollow shaft as they serve to urge the
cover relative to the hollow shaft.
[0054] (e) Allowance for umbrella construction with materials
having low coefficients of electric conductivity to minimize
potential electrical dangers.
[0055] Further objects and advantages of the present invention
include the following. The invention's deployment of covers via
connections among elongated elements including ribs and stretchers
are specifics not seen in prior art. This invention is simple to
operate and cost effective to manufacture. Such factors encourage
the invention's use with umbrellas having a variety of sizes and
applications.
BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWING
[0056] These and other features, and advantages of the present
invention will become apparent from the following descriptions and
drawings. Like reference numerals represent like elements in the
several views, and in which:
SHEET 1/6
[0057] FIG. 1 partial sectional view of a typical embodiment with
its cover deployed.
[0058] FIG. 2 plane indication, of partial sectional view FIG.
1
SHEET 2/6
[0059] FIG. 3 plane indication, of partial sectional view FIG.
4
[0060] FIG. 4 enlarged partial sectional view of upper portion of a
typical embodiment, cover deployed
SHEET 3/6
[0061] FIG. 5 plane indication, of partial sectional view FIG.
6
[0062] FIG. 6 enlarged partial sectional view of upper portion of a
typical embodiment, cover retracted
SHEET 4/6
[0063] FIG. 7 elevation view of an alternate embodiment with a
moisture release cap at upper end, and track slot gasket in place
at track slot, umbrella cover retracted
[0064] FIG. 8 elevation of another alternate embodiment with a
helical track slot,.umbrella cover retracted
[0065] FIG. 9 top view of cap, showing sectional plane FIG. 10
[0066] FIG. 10 sectional view of cap
[0067] FIG. 11 sectional view of yet another alternate embodiment
showing cover-rib tether and tether link
SHEET 5/6
[0068] FIG. 12 partial sectional view, an additional alternate
embodiment with sleeve storage vessel
[0069] FIG. 13 plane indication, sectional view 12
[0070] FIG. 14 elevation showing deployed sleeve
SHEET 6/6
[0071] FIG. 15 elevation showing yet another additional alternative
embodiment with handle cylinder retracted.
[0072] FIG. 16 elevation showing yet another additional alternative
embodiment with handle cylinder extended.
[0073] FIG. 17 elevation showing support elements of a large,
embodiment, with supports in extended mode
DETAILED DESCRIPTION OF THE INVENTION
LIST OF REFERENCE NUMERALS UTILIZED IN THE DRAWING
[0074] 10 hollow shaft
[0075] 20 upper transition element
[0076] 30 cover
[0077] 40 cover hub slider
[0078] 45 cover-cover hub attachment devices
[0079] 50 rib
[0080] 60 rib collimator
[0081] 70 stretcher
[0082] 80 cover-rib-stretcher fastener
[0083] 90 stretcher-rib slider
[0084] 100 deployment slider
[0085] 110 deployment slider upper fastener
[0086] 120 deployment slider lower fastener
[0087] 130 track slot
[0088] 140 deployment slider-cover hub slider slot link
[0089] 150 membrane support
[0090] 160 cap
[0091] 170 orifices
[0092] 180 vapor permeable membrane
[0093] 190 absorbant material
[0094] 200 track slot gasket/internal moisture barrier
[0095] 210 cover-rib tether
[0096] 220 tether link
[0097] 230 sleeve storage vessel
[0098] 240 sleeve
[0099] 250 handle cylinder
[0100] 260 support elements
DETAILED DESCRIPTION OF THE INVENTION
[0101] A typical embodiment of this invention is shown on SHEET
1/6, FIG. 1, as an umbrella with a hollow shaft 10, providing means
for containment, deployment, support, and retraction of a cover 30.
Cover 30 is urged relative to the hollow shaft 10, and subsequently
supported in cooperation with a frame substantially consisting of a
plurality of externally mounted ribs 50 and stretchers 70.
[0102] The invention's ribs and stretchers are in turn supported
and guided by elements including a deployment slider 100 and a
plurality of rib collimators 60. These provide means for orderly
urging of ribs and stretchers relative to the hollow shaft. Said
urging results from forces applied directly to slider 100, or by
means of alternate methods such as turning a crank, pulling a cord,
or activating a motor, the umbrella's cover 30 is transported from
within the hollow shaft 10 to its deployed configuration. When
deployed, cover 30 is substantially supported by said ribs 50,
stretchers 70, and cooperating elements. The invention's cover
deployment elements are additionally guided by one or more track
slots 130 located along the invention's hollow shaft 10.
Description of Components
[0103] The invention is distinct from configurations and mechanisms
seen in prior art. Its cover storage, deployment, and support
system is unique in the field of umbrella construction and usage.
The essence of this distinction may be seen in a typical embodiment
of the invention, shown in sheets 1/6, 2/6 and 3/6.
[0104] In this particular example the invention includes a hollow
shaft 10 sufficiently rigid to support attached elements and also
serve as a handle. The upper end of said hollow shaft 10 terminates
with upper transition element 20. The disclosed invention also
includes a plurality of cooperating deployment elements including
the following. A plurality of ribs 50, are each sufficiently
flexible to be guided by rib collimators 60 that are, in turn,
attached near the top of hollow shaft 10. The lower ends of ribs 50
connect to deployment slider 100. Additionally, each of a plurality
of stretchers 70 is attached at its lower end to a stretcher-rib
slider 90. Individual stretchers 70 are additionally attached at
their upper ends to a rib 50 by means of an intervening
cover-rib-stretcher fastener 80. Cover 30, when deployed, is
supported by the plurality of ribs 50 in cooperation with said
plurality of stretchers 70 and hollow shaft 10.
[0105] Components of a typical embodiment generally comprise
materials having low coefficients of electrical conductivity for
enhanced safety, especially during lightning storms. Dimensions of
embodiments are fundamentally predicated by the size of cover
40.
Storage Component Connections
[0106] SHEET 2/6, FIG. 4 illustrates an upper portion of hollow
shaft 10. In a typical embodiment of the present invention, said
hollow shaft 10 provides an internal storage site for umbrella
cover 30.
[0107] Hollow shaft 10 additionally provides means for the support
of a plurality of elements constituting the invention's deployment
system. System elements include ribs 50, rib collimators 60,
deployment slider 100, and stretchers 70. Each rib 50 is anchored
in, and extends from, deployment slider 100. When fully deployed,
ribs 50 and stretchers 70 form cantilevers, extending radially from
said hollow shaft 10 in support of cover 30.
[0108] In this disclosed typical embodiment each stretcher 70 is
attached at its lower end to a stretcher-rib slider 90. Stretchers
70 extend upward joining ribs 50 via a plurality of
cover-rib-stretcher fasteners 80.
[0109] While in their retracted mode, the invention's ribs 50 and
stretchers 70, nest adjacent to the outer surface of hollow shaft
10.
Cover Deployment
[0110] In a typical embodiment of the invention, deployment of
umbrella cover 30 is accomplished by applying urging force to
deployment slider 100 via direct manual contact. In a typical
embodiment upper transition element 20 provides means to ease
frictional forces acting on cover 30 during its retraction.
[0111] Each of the plurality of ribs 50 is attached at its upper
tip to the periphery of cover 30. Said ribs 50 thereby convey
urging forces that displace cover 30 upward and outward relative to
hollow shaft 10. Subsequently, ribs 50 transmit tensile forces to
cover 30, thereby substantially maintaining the tautness of said
cover. This combination of forces, acting on the periphery of cover
30 provide means to substantially urge cover 30 into its fully
deployed configuration.
[0112] During urging of ribs 50 upward and radially relative to
hollow shaft 10, forces are also applied to the lower ends of the
plurality of stretchers 70 via contact between deployment slider
100 and stretcher-rib sliders 90. As a result, stretchers 70 also
slide upward along the exterior of hollow shaft 10 thereby helping
to maintain ribs 50 and cover 30 in alignment. When cover 30 is
fully deployed said stretchers assist in maintaining the
configuration, substantially resisting deforming forces including
those of gravity and wind. Engagement of deployment slider 100 with
deployment slider upper fastener 110, located near upper end of
said track slot 130, substantially secures elements in their
deployed positions.
Cover Retraction
[0113] Retraction of cover 30 is accomplished by releasing
deployment slider upper fastener 110 and applying downward force to
deployment slider 100. In addition to relaxing tensile forces
acting on cover 30; downward motion of deployment slider 100 urges
cover hub slider 40 by means of intervening deployment slider-cover
hub slider slot link 140. As a result, cover hub slider 40 is urged
downward within hollow shaft 10, thereby substantially retracting
said cover 30 into said hollow shaft 10. Engagement of deployment
slider 100 with deployment slider lower fasteners 120 near the
bottom end of track slot 130 substantially secures cover 30 and
cooperating elements in their retracted configurations.
Alternate Embodiments
[0114] Several forms of alternate embodiments are shown on sheets
4/6, 5/6, and 6/6.
[0115] One alternate embodiment of the invention seen in FIGS. 7,
9, and 10, provides a cap 160 that can substantially enclose either
one or both ends of hollow shaft 10 while cover 30 is stowed. Cap
160 substantially prevents liquid water from escaping hollow shaft
10 while simultaneously allowing dispersal of moisture from stowed
cover 30 by means of evaporation. Cap 160 contains a plurality of
orifices 170, vapor permeable membranes 180, and absorbant material
190. Track slot gasket/internal moisture barrier 200, located along
track slot 130 allows passage of the deployment slider-cover hub
slider slot link 140 while also substantially blocking liquid
water, introduced on retraced cover 30, from exiting hollow shaft
10. Track slot gasket/internal moisture barrier 200 may also, in
extended form, provide a substantially copious, fully encompassing
barrier stationed between retracted cover 30 and pluralities of
additional slots or other orifices in hollow shaft 10, that may be
provided in various alternate embodiments of the invention.
[0116] Sheet 4/6 shows other alternate embodiments including FIG.
8, a helical configuration of track slot 130 providing an angled
longitudinal retraction range for ribs 50 and stretchers 70,
thereby allowing use of a shorter hollow shaft 10.
[0117] Another alternate embodiment, seen in FIG. 11, provides a
plurality of cover-rib tethers 210. Each tether is anchored at one
end to a medial point along a corresponding rib 50. The other end
of each tether is attached at a medial point along the interior of
the invention's hollow shaft 10. Furthermore, each of a plurality
of cooperating tether links 220, situated on the surface of cover
30, encircles one of the tethers 210 while allowing said cover-rib
tether 210 to slide through the link 220. As a result, a
pulley-like system is established. When cover 30 is fully deployed,
it is, by means of tether links 220, drawn into substantially
tighter contact with ribs 50.
[0118] Sheet 5/6, FIG. 12 and FIG. 13 shows yet another alternate
embodiment. An expandable sleeve 240 is provided. Contained in
sleeve storage vessel 230 when not in service, the sleeve is
capable of expanding and enclosing hollow shaft 10, ribs 50, and
stretchers 70 when cover 30 is fully stowed.
[0119] Sheet 6/6 FIG. 14 and FIG. 15 shows yet another additional
alternative embodiment. In this embodiment a handle cylinder 250
mounted on the hollow shaft while the umbrella is not in use, may
subsequently slide longitudinally along said hollow shaft to
provided service as a handle. While retracted said cylindrical
vessel substantially encompasses the invention's retracted ribs and
stretchers.
[0120] In a large embodiment of the invention a set of support
elements 260 are capable of being substantially retracted along the
exterior of the hollow shaft and cooperating elements. Support
elements 260 enable free standing use of this embodiment.
[0121] The words "horizontal", "vertical", "up", "down", "in",
"out", "top", "bottom", upper, lower, and similar expressions are
to be interpreted as relative to the embodiments discussed and
cooperating components of the invention and are not intended to be
otherwise limiting. Embodiments described herein are included for
example only. Additional variations of the claimed invention's
concepts will be obvious to those skilled in the art. Adaptation or
inclusion of known alternative devices and materials, present and
future is also contemplated. Range of the invention is defined by
the following claims.
[0122] Accordingly, the reader will see that this invention, serves
to efficiently deploy, retract, and store umbrella covers.
Furthermore, a typical embodiment of the invention has other
advantages in that:
[0123] In addition to providing means for internal storage of its
cover within a hollow shaft, and use of deployment elements mounted
externally on said hollow shaft, the invention's use of trusses
formed by cooperation between ribs and stretcher elements provide
means for encouraging substantially enhanced stability of said
cover. The invention's rib and stretcher elements' provide enhanced
resilience against wind damage compared to examples of umbrellas
featuring internal cover storage seen in prior art. This
invention's externally mounted cover support trusses may take
various forms such as triangles, bows, orthogonals, or combinations
thereof.
[0124] Furthermore the invention's plurality of ribs largely slide
into position rather than rotate on hinges or rivets. This is a
significant advantage to this invention because hinges and rivets
are especially vulnerable elements when used in frames of
conventional umbrellas.
[0125] Internal storage of the umbrella cover, combined with
structural advantages of the invention's externally mounted
deployment elements, reduces potential damage to said cover as well
as unwanted transfer of liquid water to surrounding surfaces. Means
may be provided for elimination of unwanted moisture.
[0126] The invention encourages use of non-metallic components,
thereby reducing potential for injury from electric shock,
especially during lightning storms.
[0127] Furthermore, versions of the invention are applicable to a
range of umbrella sizes and configurations, including handheld
sizes as well as beach and patio models.
[0128] Although the above descriptions contain numerous specifics,
none of these should be construed as limiting the scope of the
invention. They merely serve to provide illustrations of several
embodiments of the present invention. For example, dimensions may
vary and the hollow shaft may have various shapes, including
conical or progressively stepped. Elements may have varied profiles
in planes defined by various coordinates. Additionally, the hollow
shaft may be constructed with either solid walls or perforated by a
plurality of orifices. Such openings may have various dimensions,
configurations, shapes, and orientations. Materials used in the
invention, may have varied ability to bend, expand, or compress. In
other words elastic moduli of the invention's elements may vary
within limits defined by necessity of maintaining the invention's
structural and functional integrity. For example, the hollow shaft
may be constructed with one or more relatively rigid components
that function as primary support, analogous to the relationship
between frame poles to fabric in a tent, or mesh in a basket. Such
construction thereby allows use of a less massive hollow shaft,
albeit sufficiently copious and rigid to support cooperating
elements of the invention. Invention elements may be opaque,
translucent, transparent, or any combination thereof.
[0129] Furthermore, deployment and support elements may be attached
at various sites on the invention. Urging forces may be transmitted
from one element to another via various modes, for example direct
contact through a slot, or by means of flexible extended members
and pulleys. Specifications of deployment slider fasteners may
include alternate forms of locking devices. The invention's
elements may have various colors, hardness, surface textures,
densities, and permeabilities. Elements may have continuous or
perforated surfaces. Furthermore, the number of the invention's
individual elements may vary from that shown in disclosed
embodiments.
[0130] Deployment mechanisms, storage space, and ancillary parts
may be composed of various materials consistent with their
cooperative functions. Parts may be brought to deployed and
retracted positions by alternate means, rather than direct manual
force. Such means may, for example, include use of intervening
elements urged by hand or motor, such as application of urging
force via cranks and pulleys, gear and pulley combinations, or by
means of various forms of linkage mechanisms. Alternate devices may
be used for attachment, removal, and interchange of covers. Covers
having assorted compositions, textures, and surface details may be
used.
[0131] The present invention has been illustrated in part as
embodied as a handheld umbrella, but it is not limited to that
particular disclosure. For example, in variously sized alternate
embodiments, the umbrella system may also function while
semi-permanently mounted at a patio table, on a pedestal, or in a
self-supporting configuration. It will be understood that various
omissions, and changes in the shapes and specifics of the
illustrated invention and its operation can be made without
altering the fundamental character of the invention. Descriptions
of this invention have been made for purposes of revealing
particularly useful embodiments, they are not intended to limit the
invention to only disclosed forms.
[0132] The scope of this invention should be determined by the
appended claims and their legal equivalents, rather than by the
examples given.
[0133] Embodiments of the invention range from small handheld
versions to larger free standing umbrellas capable of transport and
service in conjunction with vehicles, and embodiments
semi-permanently or permanently mounted.
* * * * *