U.S. patent application number 12/341571 was filed with the patent office on 2009-07-30 for vacuum hose storage system.
This patent application is currently assigned to H-P Products, Inc.. Invention is credited to Andrew L. Gabric, Shawn C. Metz, Darrell V. Nieschwitz, James F. Smith.
Application Number | 20090188073 12/341571 |
Document ID | / |
Family ID | 40897748 |
Filed Date | 2009-07-30 |
United States Patent
Application |
20090188073 |
Kind Code |
A1 |
Gabric; Andrew L. ; et
al. |
July 30, 2009 |
VACUUM HOSE STORAGE SYSTEM
Abstract
A vacuum hose storage system includes a housing which is mounted
in a storage area of a dwelling or vehicle and connected to a
vacuum source. A length of flexible, expandable cleaning hose is
mounted in a looped fashion about a plurality of spaced rollers
rotatably mounted within the housing. A handle is attached to one
end of the hose and is seated in a cradle formed in the housing
when the hose is in a fully retracted position within the housing.
The cradle is mounted in the housing and receives the open end of
the hose when not in use and enables other vacuum tubes in the
structure to be operational without shutting off the vacuum to the
stored hose. An ON/OFF switch is located in the cradle for
controlling the vacuum source and is actuated when the handle is
placed in or removed from the cradle. The hose has an internal
helical spring which biases the hose toward a retracted position
about the spaced rollers within the housing. In an alternate
embodiment, the hose is slidably extendable from within a rigid
serpentine tubing mounting within the housing.
Inventors: |
Gabric; Andrew L.;
(Louisville, OH) ; Metz; Shawn C.; (Louisville,
OH) ; Nieschwitz; Darrell V.; (Louisville, OH)
; Smith; James F.; (Louisville, OH) |
Correspondence
Address: |
SAND & SEBOLT
AEGIS TOWER, SUITE 1100, 4940 MUNSON STREET, NW
CANTON
OH
44718-3615
US
|
Assignee: |
H-P Products, Inc.
|
Family ID: |
40897748 |
Appl. No.: |
12/341571 |
Filed: |
December 22, 2008 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
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12151174 |
May 5, 2008 |
|
|
|
12341571 |
|
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|
61062724 |
Jan 29, 2008 |
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Current U.S.
Class: |
15/323 |
Current CPC
Class: |
A47L 5/38 20130101; A47L
9/0009 20130101 |
Class at
Publication: |
15/323 |
International
Class: |
A47L 9/00 20060101
A47L009/00 |
Claims
1. A vacuum hose storage system comprising: a housing forming an
internal storage compartment; a length of tubing fixedly mounted
within the storage compartment and arranged in a serpentine fashion
with a first end adapted to be connected to a vacuum source and an
open second end; a length of hose located within the tubing and
movable within said tubing from a retracted collapsed stored
position to an extended expanded position from said tubing and the
storage compartment, said hose having a first seal adjacent a first
end of the hose and movable with said hose in sealing engagement
with the tubing, and an open second end for collecting dirt from an
area to be cleaned, wherein said hose moves in a serpentine fashion
throughout the tubing between the retracted stored position and the
extended position; a handle on the second end of the hose; a cradle
on the housing for holding the handle when the hose is in the
retracted position; and a switch for turning the vacuum source ON
and OFF.
2. The storage system defined in claim 1 including a biasing device
connected to the hose for exerting a contracting force on the hose
when in an expanded position.
3. The storage system defined in claim 2 wherein the biasing device
is a helical spring mounted within the hose.
4. The storage system defined in claim 1 wherein the cabinet
includes at least a pair of opposed side walls and a pair of
opposed end walls.
5. The storage system defined in claim 4 wherein an opening is
formed in one of the end walls adjacent the second end of the
tubing through which the hose extends from the tubing and storage
compartment; and wherein the cradle is formed in the said one end
wall.
6. The storage system defined in claim 1 wherein the vacuum source
is a vacuum producing motor mounted in a second housing adjacent
the hose storage housing.
7. The storage system defined in claim 1 wherein the vacuum source
is a vacuum unit of a central vacuum cleaning system located remote
from the housing.
8. The storage system defined in claim 1 including a second seal
which is in contact with the open end of the handle when said
handle is placed in the cradle.
9. The storage system defined in claim 8 wherein the second seal is
spring biased toward the open second end of the hose.
10. The storage system defined in claim 1 wherein the hose has a 5
to 1 elongation factor between expanded and contracted
positions.
11. The storage system defined in claim 1 wherein the housing has a
parallelepiped configuration with a front wall and a spaced rear
wall; in which the cradle is accessible through a first opening
formed in an upper portion of the front wall; and in which the hose
extends through a second opening formed in a lower portion of said
front wall.
12. The storage system defined in claim 1 wherein the switch is
mounted in the handle.
13. The storage system defined in claim 1 wherein electrical
conductors are in the hose for connections to a high voltage
source.
14. The storage system defined in claim 1 wherein the length of
hose is a neutrally biased hose.
15. The storage system defined in claim 1 wherein the length of
hose is an expansion biased hose.
16. The storage system defined in claim 1 wherein the tubing has an
outer diameter of 2 inches and an internal diameter of 17/8
inches.
17. The storage system defined in claim 1 wherein the first seal is
an annular sleeve formed of a low friction sliding material and has
an outer diameter complementary to an internal diameter of the
tubing.
18. The storage system defined in claim 1 wherein the tubing has
five straight sections connected by four U-shaped bends.
19. The storage system defined in claim 1 wherein the cradle is
pivotally mounted with respect to the housing and has a tubular
section which slidably receives an open end of the handle
therein.
20. The storage system defined in claim 19 wherein the switch is
mounted within the housing separate from the handle and activated
to turn the vacuum source ON and OFF by pivotal movement of the
tubular section of the cradle.
Description
CROSS REFERENCE TO RELATED APPLICATIONS
[0001] This application claims priority from U.S. Provisional
Application Ser. No. 61/062,724 filed Jan. 29, 2008, and U.S.
application Ser. No. 12/151,174, filed May 5, 2008; the disclosures
of which are incorporated herein by reference.
BACKGROUND OF THE INVENTION
[0002] 1. Technical Field
[0003] The invention relates to vacuum cleaning systems, and in
particular to a storage system connected to a vacuum source for
storing an extendable length of hose in a retracted condition
within a storage housing. More particularly, the invention relates
to a small, compact storage system adapted to be mounted in a
concealed area within a home, such as in a kitchen cabinet, which
contains a sufficient length of an expandable hose for ease of
cleanup of the adjacent room.
[0004] 2. Background Information
[0005] Central vacuum systems for home and commercial use have been
used for many years, examples of which are shown in U.S. Pat. Nos.
2,943,698 and 3,173,164. These systems usually are comprised of a
main vacuum source which is usually mounted in the basement or
other location in the structure or closely adjacent thereto. The
vacuum source is connected to various outlet locations in the
structure by tubing which terminate in valves mounted in the wall
into which one end of a length of cleaning hose is removably
connected for cleaning an area adjacent the wall valve. These wall
or hose end valves usually include some type of closure lid, which
seals the hose receiving opening in the valve enabling another of
the valves to be operational within the structure. Many of these
valves are provided with electrical contacts or switches which
energize the main vacuum source. The vacuum hose also may be
provided with a pair of electric conductors for actuating the
central vacuum source by a switch on the handle, such as shown in
U.S. Pat. Nos. 4,064,355, 4,133,972, 4,194,081 and 4,368,348.
[0006] When using the cleaning system, the homeowner will generally
have a single length of cleaning hose with various attachments
which are stored in a closet or other location requiring the hose
to be moved from room to room to be connected to the appropriate
wall valve for cleaning the area adjacent the valve location. In
many situations, this is less convenient than desired since the
homeowner must continually go to a remote location to retrieve the
cleaning attachments and hose for use in a particular room and then
return the cleaning attachment, cleaning wand and hose to the
closet for final storage. Also, these storage areas become
cluttered and occupy needed space in other closets of the
house.
[0007] Some central vacuum cleaning systems attempt to solve some
of these storage problems by having the hose retractably inserted
into the vacuum supply duct when not in use such as shown in U.S.
Pat. Nos. 2,953,806, 3,593,363, 5,526,842 and 7,010,829. In another
attempt to solve this storage problem in a central cleaning system,
an in-wall storage cabinet was developed and shown in U.S. Pat. No.
5,740,581. However, the storage arrangement of this latter system
requires the use of a power-driven mechanism for retracting the
hose when not in use. Although this may perform satisfactory for
its intended purpose, it is a more costly installation than may be
desired by many homeowners and it requires the hose to be dedicated
to a single vacuum source. This prevents the same vacuum source to
be energized for supplying a vacuum to other wall valves in the
structure. Also, these units may tend to be weak because their size
is very limited, and in addition, their dirt capacity may also be
limited.
[0008] Due to the need to retrieve the vacuum hose from a storage
area and connected to an in-wall vacuum supply valve, many
homeowners will not use the system for small cleanups, such as
small quantities of dirt or other debris such as spillages in a
kitchen or the like, and will use a manual broom. These types of
cleanups usually are required in a kitchen, workroom or laundry
area, but do not receive the homeowner's immediate attention due to
the need of retrieving the relative long length of hose from the
storage area and connecting it to a central vacuum system.
Afterwhich the hose has to be disconnected from the wall valve and
returned to the storage area.
[0009] Thus, the need exists for an improved hose storage system
contained in a small, compact hose storage housing which can be
located inside of a larger storage cabinet, such as a kitchen sink
cabinet or adjacent cabinet, which facilitates the use of the
vacuum cleaning equipment in a relatively simple and convenient
manner, and most importantly enables a sufficient length of
cleaning hose to be easily removed from and returned to the storage
housing when not in use, and which can enable other vacuum outlets
in the structure to be active, that is, have the vacuum source
supplied to the storage housing of the present invention and to
other vacuum outlets from a single central vacuum supply source, by
providing a closure for an open end of the cleaning hose when not
is use and stored in the housing.
BRIEF SUMMARY OF THE INVENTION
[0010] The present invention provides a vacuum hose storage system
having a compact hose storage housing for storing the cleaning
hose, wherein the housing preferably is mounted in a larger storage
area or cabinet which is connected to a vacuum source tube, which
tube can extend from a main central vacuum source or from a
self-contained vacuum source located within or adjacent the hose
storage housing.
[0011] Another feature of the invention is to provide such a hose
storage system in which the hose is permanently connected to a
vacuum source tube by providing a sealing device at an open end of
the hose handle which enables a central vacuum source to be active
and provide a source of vacuum at other wall valves throughout the
structure, enabling another hose to be used by the homeowner at one
or more of these other valves if desired.
[0012] Still another feature of the invention is to provide such a
hose storage system in which the hose when not in use is inserted
into a pivotally mounted cradle which automatically actuates a
switch to turn off the vacuum source and which seals the end of the
hose to enable a central vacuum source to be active and provide a
source of vacuum at other wall valves throughout the structure.
[0013] A further feature of the present invention is to provide the
hose storage housing with a plurality of rollers attached in a
spaced relationship between the walls of the housing within the
storage compartment around which the hose is placed in a looped
fashion preventing it from becoming tangled within the housing, and
which enables the hose to be easily grasped and pulled from the
housing by expanding the hose from a retracted to an extended
position.
[0014] Another aspect of the invention is to form the rollers with
a concave outer circumference to ensure that the hose during
expansion and contraction remains in proper alignment within the
storage housing thereby reducing friction during expansion and
contraction of the hose.
[0015] Still another aspect of the present invention is to provide
a sealing device for an open end of the hose handle when the handle
is mounted in a storage cradle, which sealing device can have
various configurations for sealing the open end of the handle while
the vacuum supply is energized, and in which an ON/OFF switch can
be mounted in the support cradle to turn the vacuum power supply ON
and OFF automatically upon placing the handle in the cradle.
[0016] Another aspect is to provide the hose with an expansion
ratio of 5 to 1 thereby enabling a long useable length of hose to
be obtained from a relatively short contracted length of hose
easily stored in a small storage area.
[0017] A further feature is to provide a vacuum storage system in
which one or more drive belts may extend between the hose storage
rollers to assist in the uniform expansion and contraction of the
hose as it is pulled from or retracted back into the housing by
synchronizing the rotational movement of the rollers.
[0018] Still another feature of the invention is to provide a small
compact storage housing preferably mounted within an outer cabinet
which stores a maximum length of hose in a minimum amount of
storage space within the housing whereby the hose end is easily
removed from a storage cradle which upon removal will automatically
turn the vacuum source ON and when returned to cradle will
automatically turn the vacuum source OFF, in which a maximum length
of hose can be stored and removed from a minimum storage area, and
in which the vacuum source can be connected at various locations in
the storage housing and connected to a remotely located central
vacuum source or to a dedicated source of vacuum adjacent the hose
storage housing.
[0019] Another aspect is to use a neutrally biased hose or an
expansion biased hose which relies upon the retraction force
created by the vacuum to assist in retracting the hose back into
the housing after use eliminating the use of a spring biased
retraction type of hose.
[0020] Still another feature of the invention is to use a switched
hose for actuating the vacuum source by providing an ON/OFF switch
on the wand or handle which is connected to the vacuum source motor
via electrical conductors extending through the hose.
[0021] A further feature is to provide a type of ratchet mechanism
on the hose storage rollers which will lock the rollers in position
upon pulling the hose from within the storage housing which
relieves the biased retraction force on the hose avoiding the user
having to continually apply a force to the hose when in use to
prevent it from being pulled back into the housing.
[0022] A still further feature is to provide a high voltage source
(120V or 240V) to a power driven brush-type of cleaning attachment
mounted on the end of the hose and connected to the remote source
of voltage by electrical conductors extending through the hose to
enhance the cleaning ability of the vacuum cleaning system.
[0023] Another aspect of the invention is to provide a length of
tubing fixedly mounted in the storage housing and extending in a
serpentine fashion in which the length of expandable hose is
located within the tubing and has an inner end which is slidably,
sealingly engaged within the tubing to enable the length of hose to
be pulled from its stored position within the tubing, which in
combination with the natural expansion of the hose provides a
considerably greater length of available hose from within the
storage compartment.
[0024] These features and advantages are obtained by the vacuum
hose storage system of the present invention, the general nature of
which may be stated as including a housing or cabinet forming an
internal storage compartment; a plurality of guide wheels mounted
within the storage compartment; a length of hose extendable between
a retracted position in the storage compartment and an extended
position extending from said storage compartment, wherein the hose
has a first end adapted to be connected to a vacuum source and a
second end, with the hose extending in a looped fashion about the
guide wheels when in the retracted and extended positions; a handle
attached to the second end of the hose; a cradle for holding the
handle in a stored position; a switch for turning the vacuum source
ON and OFF when the handle is placed in the cradle; and a biasing
device connected to the hose exerting a retracting force on the
hose when in an extended position.
[0025] These features and advantages are further obtained by the
vacuum hose storage system of the present invention the general
nature of which includes a housing forming an internal storage
compartment; a length of tubing fixedly mounted within the storage
compartment and arranged in a serpentine fashion with a first end
adapted to be connected to a vacuum source and an open second end;
a length of hose located within the tubing and movable within said
tubing from a retracted collapsed stored position to an extended
expanded position from said tubing and the storage compartment, the
hose having a first seal adjacent a first end of the hose and
movable with the hose in sealing engagement with the tubing, and an
open second end for collecting dirt from an area to be cleaned,
wherein the hose moves in a serpentine fashion throughout the
tubing between the retracted stored position and the extended
position; a handle on the second end of the hose; a cradle on the
housing for holding the handle when the hose is in the retracted
position; and a switch for turning the vacuum source ON and
OFF.
BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS
[0026] A preferred embodiment of the invention, illustrated of the
best mode in which Applicant contemplates applying the principles,
is set forth in the following description and is shown in the
drawings and is particularly and distinctly pointed out and set
forth in the appended claims.
[0027] FIG. 1 is a diagrammatic perspective view showing the vacuum
hose storage system mounted within an outer storage cabinet and the
hose in a partially extended position.
[0028] FIG. 2 is a side perspective view of the hose storage
housing with the hose in a retracted position within the housing
and the handle placed in the cradle.
[0029] FIG. 3 is a diagrammatic side sectional view of the storage
housing as shown in FIG. 2 with the hose in an extended position
and the handle removed from the supporting cradle.
[0030] FIG. 4 is a fragmentary sectional view showing the hose
placed in the supporting cradle in the power ON position.
[0031] FIG. 5 is a fragmentary sectional view similar to FIG. 4
showing the hose supporting cradle in a power unit OFF
condition.
[0032] FIG. 6 is a fragmentary side view showing the hose in a
fully retracted stored position within the storage housing.
[0033] FIG. 7 is a diagrammatic view of the hose storage housing
shown in section and the hose in a partially extended position
connected to a remote central vacuum cleaning unit.
[0034] FIG. 8 is a side elevational view with the side wall of the
housing removed showing a modified embodiment wherein a pair of
drive belts assist in extending and retracting the hose into and
out of the housing.
[0035] FIG. 9 is an elevational view of one of the guide rollers
used for storing the hose within the housing.
[0036] FIG. 10 is a sectional view through the center of the roller
of FIG. 9.
[0037] FIG. 11 is a side elevational view of the roller shown in
FIG. 9.
[0038] FIG. 12 is a diagrammatic cut-away view of the hose of FIG.
13 in an expanded position.
[0039] FIG. 13 is a diagrammatic perspective view of a portion of
the hose of FIG. 12 in a collapsed position.
[0040] FIG. 14 is an enlarged fragmentary view showing the hose end
in a stored position with a modified end sealing member engaged
therewith.
[0041] FIG. 15 is a perspective view of a vacuum power source
mounted adjacent the storage housing of the type shown in FIG.
2.
[0042] FIG. 16 is a diagrammatic cross-sectional view of a modified
embodiment of the vacuum hose storage system of the present
invention.
[0043] FIG. 17 is a perspective view of another embodiment of the
hose storage system of the present invention.
[0044] FIG. 18 is a diagrammatic perspective view of a modified
vacuum hose storage system with the side wall removed and the hose
in a retracted collapsed stored position.
[0045] FIG. 19 is a side elevational view of the storage housing of
FIG. 18.
[0046] FIG. 20 is a side elevational view similar to FIG. 19 with
the hose in a partially expanded and extended position.
[0047] FIG. 21 is a view similar to FIGS. 19 and 20 with the hose
in a fully extended position.
[0048] Similar numbers refer to similar parts throughout the
drawings.
DETAILED DESCRIPTION OF THE INVENTION
[0049] The improved hose storage system of the present invention is
indicated generally at 1, and includes a storage housing 2 which is
shown in FIG. 1 mounted within the interior 3 of a larger cabinet
5. Storage cabinet 5 preferably is of the type found in most
kitchens, laundry rooms or work rooms. Hose storage system 1 is
shown removed from cabinet 5 in FIG. 2. Housing 2 preferably has a
parallelepiped configuration with opposed side walls 7, opposed top
and bottom walls 9 and opposed back wall 10 and front wall 11 which
form a hollow interior storage compartment 13 (FIG. 3). In the
preferred embodiment, housing 2 will have a length between back and
front walls 10 and 11 of twenty and one half inches, a height
between top and bottom walls 9 of seventeen inches, and a thickness
between side walls 7 of three and one quarter inches, providing a
compact structure easily accommodated within the interior of
various types of outer cabinets 5. One or more brackets 12 may be
used to secure housing 2 within outer cabinet 5 as shown in FIG.
1.
[0050] In accordance with one of the features of the invention, an
extendable hose 15 is mounted in a looped fashion about a plurality
of guide rollers 17 which are rotatably mounted within housing 2 on
shafts 19, which preferably extend between and are mounted on
spaced side walls 7. In the preferred embodiment shown in FIG. 3,
four rollers 17 are provided which form for five loops in hose 15.
Hose 15 preferably is a type of expandable hose as shown in FIGS.
12 and 13 which includes an internal helical spring 21 which is
encased in the outer layer of material 22. Hose 15 is pulled
outwardly from housing 2 through a front wall opening 20 and
extends from a collapsed position as shown in FIGS. 6 and 8 to a
stretched or expanded position of FIG. 3. This will tension spring
21 which then biases the hose towards the collapsed or retracted
position of FIGS. 2 and 6 when the outward pulling force exerted
thereon is released. The looped arrangement of hose 15 about
rollers 17 as shown in FIGS. 3 and 6, enables a relatively large
length of hose 15 to be stored within compartment 13 without
becoming entangled while providing a sufficient length of hose when
pulled therefrom as shown in FIG. 3 to perform cleanup throughout a
room in which cabinet 5 is located. The preferred hose 15 will have
an elongated factor of 5, that is, if the hose has a collapsed
length of eight feet and it has an extended length of forty feet.
If desired, hose 15 can be a neutrally biased hose or an expansion
biased hose, which types rely solely on the vacuum source to
retract it back into the housing.
[0051] In the preferred embodiment, hose 15 in a collapsed position
as shown in FIG. 6 will have a length of 8 feet, and when stretched
out with a 5 to 1 ratio will have a length of approximately 40
feet. When in this fully stretched out position, approximately 8
feet will remain in storage compartment 13 about rollers 17
providing approximately 32 feet of hose extending from housing 2
for use in cleaning up an area about outer storage cabinet 5.
However, these lengths can change without affecting the concept of
the invention.
[0052] A handle 23 is attached to the distal open end 25 of hose 15
by a connector 27 (FIG. 3). Handle 23 is a rigid tubular member
formed of plastic or metal and will have an open end 29 through
which dirt enters the hose interior. If desired, a cleaning
attachment such as a rotary power driven brush 26 as shown in FIG.
17 could be attached to a wand 28 which in turn is attached to the
open end of handle 23. However, for many of the types of cleanups
for which hose 15 is intended to be used, a separate attachment is
generally not required.
[0053] A vacuum source such as a central vacuum cleaning unit 33,
as shown in FIG. 7, generally is mounted in a basement, attic etc.
of the building, can be connected directly to housing 2 by a length
of tubing 35 or with an elbow pipe 38 as shown in FIG. 1. A vacuum
source such as a self-contained vacuum producing motor 32, can be
mounted within a separate housing 31 (FIG. 15) that can be attached
to a side wall 7 of housing 2 or mounted adjacent thereto and
pneumatically connected to hose 15 by a section of tubing 30.
[0054] If desired, a special tube and hose connector 37 can be
mounted in a lower rear corner of housing 2 (FIG. 16) and may have
a plurality of outlets, such as outlet 39 in rear wall 10, a bottom
outlet 41 in bottom wall 9 and a pair of opposed side wall outlets
43 formed in side walls 7. This provides other attachment locations
for a section of tubing which is connected to the vacuum source
depending upon the location of housing 2 within the larger outer
storage cabinet 5, and the best location for the incoming vacuum
supply tube. Any non-used tubing outlets as shown in FIG. 16 can
easily be sealed by a cup-shaped seal 46 when not in use.
[0055] In accordance with another feature of the invention, a hose
receiving cradle 45 is located in front wall 11 of housing 2 and
accessible through an opening 44 formed in front wall 11 (FIGS. 1
and 2). Cradle 45 includes a short section of tube 47 having a
hollow interior 48 and is pivotally mounted by a pivot 50 between
side walls 7 and is adapted to slidably receive handle 23 therein
in a generally sliding frictional fit when the hose is not in use
as shown in FIGS. 2 and 4. After insertion of the open end of
handle 23 therein, the handle is pivoted downwardly as shown by
Arrow A (FIG. 4) into the final stored position of FIG. 5. The
inner end of cradle 45 is formed with a projection 51 which engages
and actuates an ON/OFF switch 53 which is mounted closely adjacent
thereto. This movement of cradle 45 from the ON position of FIG. 4
to the OFF position of FIG. 5 will turn the switch off. Switch 53
is connected to the vacuum power source by a plurality of
electrical conductors 55. When handle 23 is in the storage position
as shown in FIGS. 2 and 5, the switch is in the OFF position and
when the user desires to use the vacuum system for a quick cleanup
job, the user will merely grasp handle 23 and pivot it upwardly
from the OFF position of FIG. 5 to the ON position of FIG. 4. This
movement will automatically turn the vacuum source on, afterwhich
the user merely slides the handle outwardly from the cradle as
shown by Arrow B and then will pull outwardly on the hose in the
direction of Arrow C, FIG. 3. This will start the hose to expand
from its coiled condition to an expanded condition, as well as
unwrapping it from around rollers 17.
[0056] Upon completion of a cleaning operation, the user will
merely relax the pulling force on the hose wherein the expanded
internal helical spring 21 of the hose will bias the hose toward a
retracted coiled looped position around roller 17 until the handle
23 is replaced into cradle 45 in the position as shown in FIG. 4.
The handle is then pivoted downwardly to the full storage position
of FIG. 5 which will automatically shutoff the vacuum source by
actuation of switch 53. Also, retraction of the hose back into the
housing is assisted by the force of the vacuum exerted on the hose
which also biases the hose towards a retracted position. However,
neither of the biasing force exerted on the hose by helical spring
21 or the vacuum source, is sufficiently great to require a large
force to be exerted on the hose by the user to move it from the
collapsed retracted position to its extended position and to
maintain it in the extended position during a cleaning operation.
However, this biasing force does assist in retracting the hose into
its coiled looped position after cleanup has been accomplished.
Also, storage system 1 can use a neutrally or expansion biased hose
if desired, which relies solely on the vacuum source for retraction
of the hose back into the housing.
[0057] FIG. 8 shows a slightly modified form of the present
invention in which one or more drive belts 62 and 63 may extend
around adjacent pairs of rollers 17 to assist in the extension and
retraction of the hose from and back into the housing. Upon
initially pulling the hose from housing 2 in the direction of Arrow
D (FIG. 8), the hose will immediately start to move about and
rotate the lowermost roller 1 7A as shown by Arrow E. The next
roller 17B begins to rotate shortly thereafter as the hose is
stretched and starts to move about roller 17B as shown by Arrow F.
This progresses to the next roller 17C and then to roller 17D in a
slight time delay progression. By the use of drive belts 62 and 63,
the initial rotation of roller 1 7A will automatically start roller
17C rotating almost simultaneously with the rotation of roller 17A.
Likewise roller 17D will begin to rotate almost simultaneously upon
the rotation of roller 17B due to its connection therewith by drive
belt 62. The use of drive belts 62 and 63 will assist in starting
movement of all of the sections of hose and their corresponding
rollers almost at the same time to greatly facilitate the removal
of the hose from within housing 2 instead of the delayed sequence
which occurs as the hose is pulled from the housing without
connecting belts 62 and 63. Likewise, upon the hose beginning to
retract back into the housing without the use of the belts, roller
17A will begin to rotate followed shortly by the rotation of 17B,
then roller 17C and finally roller 17D in a time delay sequence.
The use of drive belts 62 and 63 will again enable the sections of
hose and associated rollers to move more in unison assisting the
retraction of the hose back into housing 2.
[0058] In accordance with another feature of the invention, one or
more ratchet mechanisms 65 can be mounted on one or more of the
rollers which when the hose is pulled from within housing 2 will
prevent the rollers from having a tendency to rotate backwards
since they are retained in their forward rotated position by the
ratchet mechanism. This assists in reducing the biasing retraction
force exerted on the hose by internal helical spring 21 and the
internal vacuum. This reduces the fatigue on the user by not
requiring the user to continually exert an outward force on the
hose to prevent its retraction back into housing 2. The ratchet
mechanism can be easily reduced by suddenly pulling out on the hose
and then releasing this pulling force permitting the one or more
rollers on which the ratchet mechanism are connected to rotate
freely in the reverse direction. This type of ratchet mechanisms is
well-known in the art such as used for vehicle seat belts and
similar applications, and thus the details thereof are not
described in further detail.
[0059] A modified cradle 66 is shown in FIGS. 14 and 16 and
includes a shutoff valve indicated generally at 67. Shutoff valve
67 is mounted in a compartment 69 formed at the corner of front
wall 11 and top wall 9 for storing handle 23 in a readily
accessible position. Shutoff valve 67 includes a sealing plate 68
which is biased by a compression spring 70 toward open end 29 of
handle 23 for automatically sealing open end 29 upon insertion of
the handle end through a front wall opening 72. Sealing plate 68
preferably will be used when the vacuum producing source is the
central vacuum cleaning unit 33 as shown in FIG. 7, which is
connected to other outlets throughout the building. This enables
unit 33 to be operative for use throughout the structure.
[0060] An electrical ON/OFF switch 75 is mounted within or adjacent
compartment 69 and connected to a source of electrical power by a
pair of electrical conductors 77 for controlling a vacuum producing
motor 32 such as shown in FIG. 15 or the motor of the central unit
33 as shown in FIG. 7. Switch 75 could be a plunger-type switch
that is actuated automatically upon insertion of the end of handle
23 into compartment 69 or other type of switch without affecting
the concept of the present invention. Likewise, sealing plate 68
can have other configuration than the spring biased seal as shown
in the drawings and described above.
[0061] In accordance with another feature of the present invention
discussed above is the attachment of a power driven rotary brush
cleaning attachment 26 on the end of handle 23 by a wand 28 and
connected to a remote source of high voltage electric power such as
120V/240V, by electrical conductors 73 which extend throughout the
interior of cleaning hose 15. An ON/OFF switch 75 mounted on the
wand 28 is used to control the operation of cleaning attachment 26.
The cleaning attachment can be easily removed from the wand 28 by a
connection clip 78 of the type well-known in the cleaning appliance
industry. The cleaning wand 28 can then be easily detached from
handle 23 after the cleaning operation has been completed.
[0062] In operation, housing 2 preferably is mounted within various
types of an outer larger storage cabinet 5 or could be located in a
closet or similar area and connected to a vacuum source, either an
adjacent self-contained vacuum unit contains motor 32 (FIG. 15) or
a remote central vacuum cleaning unit 33 (FIG. 7). Housing 2 can be
placed vertically as shown in the drawings or horizontally without
affecting its operation. The cleaning hose is operational
immediately upon removing handle 23 from the cradle by
automatically actuating switch 53 (FIG. 4) upon its upward pivotal
movement or by actuating switch 75 (FIG. 14). Either type of vacuum
unit will automatically turn on enabling the user to easily pull
outwardly on the handle hose which will extend the hose from its
collapsed position as shown in FIGS. 6 and 8 to an extended
position as shown in FIGS. 3 and 7 as it unwinds about the spaced
rollers 17. The user then pulls the hose to the needed length to
reach the cleanup area and perform the desired cleanup. After the
cleanup has been completed, the user merely releases the pulling
force on the hose enabling internal spring 21 of hose 15 and the
vacuum force to retract the hose into storage compartment 13 where
it continues to collapse about the spaced rollers 17. As discussed
above, the vacuum source created in the interior of the hose will
also exert a retracting force on the hose, which in combination
with the force exerted by spring 21, will permit the hose to be
easily retracted automatically into storage compartment 13 about
rollers 17. The user then inserts the end of the handle 23 into
interior 48 of tube section 47 or into compartment 69 where open
end 29 is automatically sealed by sealing plate 68, with switches
53 or 75 automatically being moved to the OFF position
de-energizing self-contained motor 32 or remote vacuum unit 33.
[0063] The relatively small compact size of housing 2 and its
ability to hold a considerable length of hose 15 and its automatic
mode of operation will enable the user to easily remove the hose
from its position within cradles 49 and 66 for cleaning up small
spills or other dirt and debris in an adjacent area which
heretofore required the homeowner to remove a length of hose from a
storage area and connect it to an adjacent vacuum outlet valve.
Heretofore, after picking up the dirt the user had to remove the
hose from the wall mounted control valve and return it to its
storage area. The collected dirt is drawn through hose 15 and
deposited in a dirt receptacle contained in housing 31 (FIG. 7) or
in the collection receptacle of central unit 33 (FIG. 7). It is
also understood that housing 2 could easily be mounted freestanding
in a work area, for example, adjacent a power saw for cleaning up
sawdust or the like, could be located within a cabinet in an RV,
boat or other vehicle where space is limited. Regardless of its
location and mounting arrangement, it is able to store a relatively
long length of hose to reach a considerable distance from the
cabinet when in operation.
[0064] Storage system 1 enables an occupant to quickly pickup small
quantities of dirt, spillage etc. by easily removing handle 23 from
its storage cradle and directing open end 29 against the area being
cleaned. Afterwhich hose 15 retracts automatically into housing 2
upon releasing the pulling force on the hose.
[0065] In accordance with another feature, the total length of the
hose for use in a particular size housing 2 can be determined
easily by the following formula L.sub.TOT=.SIGMA.L+1/2W.pi.D with
reference to FIG. 6, wherein L.sub.TOT is the total length of the
hose, .SIGMA.L is the sum of the individual horizontal lengths
between the center lines of the rollers indicated by L.sub.1,
L.sub.2 etc., wherein W is the number of rollers, and D is the
diameter of the rollers as shown in FIGS. 6 and 9.
[0066] Another embodiment of the hose storage system of the present
invention is indicated generally at 100, and as shown in FIGS.
18-21. Hose storage system 100 is similar in most respects to hose
storage system 1 described above and preferably includes the same
housing as in system 1, including cradle 45, ON/OFF switch 53,
shutoff valve 67 and sealing plate 68 as that of system 1, and thus
is not described in greater detail.
[0067] The main feature of embodiment 100 is the mounting of a
length of rigid tubing indicated generally at 102, within housing
interior 3 in a serpentine arrangement. Tubing 102 is fixedly
mounted in the housing, and in the preferred embodiment will
include five horizontally extending straight sections 104 connected
by U-shaped bends or corners 106. Tubing 102 can be mounted by
various types of attachment brackets (not shown) to the interior of
the walls of housing 2 and terminates in an open end 108 which is
adapted to be connected to a vacuum source, such as central vacuum
unit 33 or to an adjacent self-contained vacuum motor 32 as shown
in FIG. 15. The opposite open end 110 of tubing 102 communicates
with front wall opening 20 of housing 2. Tubing 102 can be formed
of various materials with the preferred type being a rigid ABS
plastic tubing having a 2 inch outer diameter and a 17/8 inch
internal diameter. However, it is readily understood that the
number of horizontal sections 104 and U-shaped corners 106, as well
as the type and size of tubing used, can vary without affecting the
concept of the invention.
[0068] In further accordance with the invention, an expandable hose
115 is slidably moveably mounted within tubing 102 and is not
rigidly attached at its inner end 112 to a coupler 114 as in system
1. An annular sliding seal 116 is attached to hose end 112 and is
in a sliding, sealing engagement with the interior surface of
tubing 102 so as to be slidably moveable therein from a fully
retracted collapsed position as shown in FIG. 19 to a fully
extended and expanded position as shown in FIG. 21. Seal 116
preferably is formed of a low friction material, such as
Teflon.RTM.. Hose 115 is similar to hose 15 described above and
preferably includes an internal helical spring 21, which exerts a
biasing force for collapsing the hose towards its collapsed
condition. FIGS. 18 and 19 show hose 115 in a fully collapsed
retracted position within the storage housing with handle 23 being
seated within pivotally mounted cradle 45 which actuates switch 53
and is sealed by sealing plate 68.
[0069] Upon an operator removing handle 23 from cradle 45, it will
either automatically start the vacuum source being applied to the
interior of the hose by actuation of switch 53 or by a switch
mounted on the handle (not shown). The operator pulls outwardly on
the hose in the direction of arrow H (FIG. 20) to expand hose 115,
as well as causing sliding seal 116 to move within the interior of
tubing 102, moving from the position of FIG. 19 to that of FIG. 20.
Upon further force being applied to handle 23, hose 115 will expand
further, as well as sliding seal 116 extending further within the
interior of tubing 102 to a fully extended position as shown in
FIG. 21, in which position sliding seal 116 will engage a stop 118
attached to the open end 110 of tubing 102. This enables a greater
length of hose to store within housing 2 and be available to the
user than the construction wherein the inner hose end is firmly
connected to the vacuum inlet tube, as in the embodiments shown
above in FIGS. 1-17. It also reduces the pulling force required by
the user for extending the hose from within the storage
compartment. Again, as in embodiment 1, the vacuum force being
applied to the interior of the hose will apply a retraction force
on the hose, especially when the open end of the handle is closed
assisting the helical spring within the hose to pull the hose
completely from its extended position as shown in FIG. 1 to its
fully retracted position of FIG. 19, as well as collapsing the hose
from its expanded condition of FIG. 21 to its collapsed position of
FIG. 19.
[0070] Embodiment 100 provides a length of tubing which extends in
a serpentine fashion within the housing and contains a length of
expandable and slidably mounted hose in the tubing which, in
combination with the natural expansion of the hose, provides a
considerably greater length of available hose from the storage
compartment without increasing the pulling force required to pull
the hose from within the housing by providing the generally
air-tight seal between sliding seal 116 and the interior of the
rigid tubing 102. It is readily understood that the interior of
tubing 102 is air-tight and that although there may be slight
leakage of air around sliding seal 116, it is minimal so that it
does not greatly affect the vacuum cleaning source applied to the
interior of the hose by the vacuum cleaning motor. Hose 115 can be
of the same type as hose 15 described above or could be a neutrally
biased hose or other type of expandable hose which requires the
mounting of sliding seal 116 on one end thereof and the handle 23
on the other end thereof, while providing the advantages of hose
storage system 1 described above.
[0071] In the foregoing description, certain terms have been used
for brevity, clearness, and understanding. No unnecessary
limitations are to be implied therefrom beyond the requirement of
the prior art because such terms are used for descriptive purposes
and are intended to be broadly construed.
[0072] Moreover, the description and illustration of the invention
is an example and the invention is not limited to the exact details
shown or described.
* * * * *