U.S. patent application number 12/683235 was filed with the patent office on 2010-07-08 for powered pool blanket reel assembly.
This patent application is currently assigned to DAYS CORPORATION. Invention is credited to MARK M. EICHHORN, JAMES N. SPROATT.
Application Number | 20100170032 12/683235 |
Document ID | / |
Family ID | 42310726 |
Filed Date | 2010-07-08 |
United States Patent
Application |
20100170032 |
Kind Code |
A1 |
SPROATT; JAMES N. ; et
al. |
July 8, 2010 |
POWERED POOL BLANKET REEL ASSEMBLY
Abstract
A pool blanket reel assembly is provided that includes a motor
base, an idler base, a roller bar, a motor bracket, a motor, an
idler bracket, an idler hub, a power supply, a switch, a remote
control, and a remote control timer.
Inventors: |
SPROATT; JAMES N.; (ELKHART,
IN) ; EICHHORN; MARK M.; (GRANGER, IN) |
Correspondence
Address: |
BARNES & THORNBURG LLP
600 ONE SUMMIT SQUARE
FORT WAYNE
IN
46802
US
|
Assignee: |
DAYS CORPORATION
ELKHART
IN
|
Family ID: |
42310726 |
Appl. No.: |
12/683235 |
Filed: |
January 6, 2010 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
|
|
61143042 |
Jan 7, 2009 |
|
|
|
Current U.S.
Class: |
4/502 |
Current CPC
Class: |
E04H 4/101 20130101 |
Class at
Publication: |
4/502 |
International
Class: |
E04H 4/00 20060101
E04H004/00 |
Claims
1. A powered pool blanket reel system comprising: a pool blanket
reel assembly which comprises: a motor base; an idler base; a
roller bar; a motor bracket extending from the motor base; a motor
adjustably mountable to the motor bracket; wherein the motor
bracket includes a slot with which the motor is selectively
attachable adjacent the periphery of the slot; an idler bracket
extending from the idler base; an idler hub adjustably mountable to
the idler bracket; wherein the idler bracket includes a slot with
which the idler hub is selectively attachable adjacent the
periphery of the slot; wherein one end of the roller bar is
attachable to the motor and another end attachable to the idler
hub; wherein the roller bar is suspendable between the motor and
idler bases; wherein the motor is configured to selectively rotate
the roller bar in either clockwise or counterclockwise directions;
wherein the roller bar is configurable to attach to a pool blanket
to roll and unroll the blanket; wherein the roller bar comprises a
first bar portion and second bar portion; wherein each of the bar
portions are connectable to make the roller bar's length
selectively adjustable; wherein the motor and idler are attachable
to a plurality of positions along the length of the slots in both
the motor and idler brackets so the roller bar can be adjusted to a
plurality of heights above the motor and idler bases; a power
supply attached to a remote control receiver and the motor to
rotate the motor in the clockwise and counterclockwise directions;
a switch having on and off positions, the switch being in
communication with the remote control receiver to selectively
permit or deny power to the motor; a remote control having a
retract button and an extend button; wherein when the switch is in
the on position, the switch is configured to activate a first timer
which limits the available time a remote control can activate the
motor to a first predetermined period of time; wherein during
periods when power is permitted to be supplied to the motor, the
remote control is configured so that if both buttons on the remote
control become depressed simultaneously, power can be supplied to
the motor for a second predetermined period of time; wherein
depressing either the retract or extend button during this second
predetermined period of time will activate the motor causing it to
rotate in either clockwise or counterclockwise directions; wherein
the motor will not rotate without the sequence of the switch moved
to the on position, followed by the depressing both buttons on the
remote control and then pressing either one of the buttons on the
remote control again; and wherein the remote control receiver
includes a remote control timer that limits activation of the motor
for a third predetermined period of time; and wherein the power to
the motor is uninterrupted by the first or second predetermined
periods of time.
2. The powered pool blanket reel system of claim 1, wherein the
slot in the motor bracket and in the idler bracket each includes a
periphery having a plurality of holes located adjacent thereto on
each side of the slots; wherein the holes on each side of the slot
of the motor bracket are configured to position the motor at
different locations on the motor bracket; wherein the holes on each
side of the slot of the idler bracket are configured to position
the idler hub at different locations on the idler bracket; and
wherein fasteners can engage the holes to secure the motor on the
motor bracket and the idler hub on the idler bracket.
Description
RELATED APPLICATIONS
[0001] The present application is related to and claims priority to
U.S. Provisional Patent Application Ser. No. 61/143,042, filed on
Jan. 7, 2009, entitled "Adjustable Pool Cover Reel." The subject
matter disclosed in that provisional application is hereby
expressly incorporated into the present application.
TECHNICAL FIELD AND SUMMARY
[0002] The present disclosure is related to pool blanket cover
reels. More particularly, the present disclosure is related to a
powered pool blanket reel that, through user activation, covers or
uncovers a swimming pool.
[0003] Pool blankets have become a popular accessory for swimming
pools. A pool blanket is a large shroud made of materials, such as
polyethylene or vinyl, that selectively covers the open top of the
swimming pool. Typically the blanket is rolled up onto a spool or
roller to uncover the swimming pool while in use. The blanket can
then unroll and cover the pool while not in use. Pool blankets are
beneficial because they reduce evaporation which reduces heat loss
in the pool. In addition, such blankets may allow sunlight to
penetrate to heat the surface of the water. These blankets also
keep debris such as leaves and dirt out of the water, thereby
reducing maintenance.
[0004] The pool blanket of the present disclosure illustratively
includes a pool blanket that extends the width of the pool and is
wound on a roller suspended from each side of the pool. To cover
the pool, the blanket is unwound and floated on the water from one
end to the other. To use the pool, the roller winds the blanket up
exposing the water underneath. This is a contrast to automatic pool
safety covers that are built into in-ground pools that provide a
load-bearing cover over the pool.
[0005] A pool reel assembly of this disclosure illustratively
includes a roller that is vertically adjustable between the pool
and the diving board. This adjustability allows the same pool reel
to be used with different pools having a variety of widths and
distances between the top of the pool and the bottom of the diving
board. This configuration is useful even when the distance is
unknown. The adjustability and height of the roller assure that the
blanket will fit underneath the diving board.
[0006] Another illustrative embodiment of the present disclosure
includes a safety control system built into the operation of the
blanket reel assembly. The safety features encourage the operator
to visually inspect the pool prior to operating the blanket
reel.
[0007] Another illustrative embodiment of the present disclosure
provides a pool blanket reel assembly that comprises a motor base,
an idler base, a roller bar, a motor bracket, a motor, an idler
bracket, an idler hub, a power supply, a switch, a remote control,
and a remote control timer. The motor bracket extends from the
motor base. The motor is adjustably mountable to the motor bracket.
The motor bracket includes a slot with which the motor is
selectively attachable adjacent the periphery of the slot. The
idler bracket extends from the idler base. The idler hub is
adjustably mountable to the idler bracket. The idler bracket
includes a slot with which the idler hub is selectively attachable
adjacent the periphery of the slot. One end of the roller bar is
attachable to the motor and another end is attachable to the idler
hub. The roller bar is suspendable between the motor and idler
bases. The motor is configured to selectively rotate the roller bar
in either clockwise or counterclockwise directions. The roller bar
is configurable to attach to a pool blanket to roll and unroll the
blanket. The roller bar also comprises a first bar portion and
second bar portion such that each of the bar portions are
connectable to make the roller bar's length selectively adjustable.
The motor and idler are attachable to a plurality of positions
along the length of the slots in both the motor and idler brackets
so the roller bar can be adjusted to a plurality of heights above
the motor and idler bases. The power supply is attached to the
motor to rotate the motor in clockwise and counterclockwise
directions. The switch has on and off positions and is in
communication with the power supply to selectively permit or deny
power to the motor. The remote control illustratively includes
retract and extend button. When the switch is in the on position,
the switch is configured to activate a first timer which limits the
available time a remote control can activate the motor to a first
predetermined period of time. During periods when power is
permitted to be supplied to the motor, the remote control is
configured so that if both buttons on the remote control become
depressed simultaneously, power can be supplied to the motor for a
second predetermined period of time. Subsequently, depressing
either the retract or extend button during this second
predetermined period of time will activate the motor causing it to
rotate in either clockwise or counterclockwise directions. The
motor will not rotate without the sequence of the switch moved to
the on position, followed by the depressing both buttons on the
remote control and then pressing either one of the buttons on the
remote control again. The remote control receiver includes a remote
control timer that limits activation of the motor for a third
predetermined period of time; and wherein the power to the motor is
uninterrupted by the first or second predetermined periods of
time.
[0008] Further embodiments may comprise the slot in the motor
bracket and in the idler bracket each including a periphery having
a plurality of holes located adjacent thereto on each side of the
slots. The holes on each side of the slot of the motor bracket may
be configured to position the motor at different locations on the
motor bracket. The holes on each side of the slot of the idler
bracket are configured to position the idler hub at different
locations on the idler bracket. Fasteners can engage the holes to
secure the motor on the motor bracket and the idler hub on the
idler bracket.
[0009] Additional features and advantages of the powered pool
blanket reel assembly will become apparent to those skilled in the
art upon consideration of the following detailed descriptions
exemplifying the best mode of carrying out the powered pool blanket
reel assembly as presently perceived.
BRIEF DESCRIPTION OF DRAWINGS
[0010] The present disclosure will be described hereafter with
reference to the attached drawings which are given as non-limiting
examples only, in which:
[0011] FIG. 1 is a perspective view of a pool blanket reel assembly
placed onto a pool deck with a diving board extending
therefrom;
[0012] FIG. 2 is a perspective view of the pool blanket reel
assembly of FIG. 1 with the blanket material removed;
[0013] FIG. 3 is a forward elevational view of a portion of the
pool blanket reel as part of progression views shown in FIGS. 3
through 6;
[0014] FIG. 4 is another forward elevational view of the portion of
the pool blanket reel of FIG. 3 from the progression views of FIGS.
3 through 6 showing the reel able to be further elevated above the
water;
[0015] FIG. 5 is another forward elevational view of the portion of
the pool blanket shown in FIG. 3 as part of the progression views
of FIGS. 3 through 6, further showing the pool blanket even more
elevated;
[0016] FIG. 6 is another forward elevational view of the portion of
the pool blanket reel shown in FIG. 4 as part of the progression
views of FIGS. 3 through 6, this view showing the pool blanket
elevated even further than the prior views;
[0017] FIGS. 7a and b are top and elevational views of the pool
blanket reel assembly, respectively;
[0018] FIG. 8 is an exploded view of the pool blanket reel
assembly;
[0019] FIG. 9 is a detailed exploded view of the drive assembly
portion of the pool blanket reel assembly;
[0020] FIGS. 10a and b are perspective and side views of the drive
assembly;
[0021] FIGS. 11a and b are additional perspective and side views of
the drive assembly showing the motor located in a different
position from that shown in FIG. 10;
[0022] FIGS. 12a and b show another perspective and side view of
the drive assembly with the motor positioned in still a different
position from that shown in FIGS. 11 and 10;
[0023] FIGS. 13a and b are perspective and side views of the drive
assembly showing the motor in yet a different position than that
shown in FIGS. 10 through 12;
[0024] FIG. 14 is an exploded view of the gear motor and associated
components of the pool blanket reel assembly;
[0025] FIG. 15 is an electrical schematic of an illustrative
control system for operating the pool blanket reel assembly;
[0026] FIG. 16 is another electric schematic showing an
illustrative control system for operating the pool blanket reel
assembly;
[0027] FIG. 17 is a perspective view of a power supply
assembly;
[0028] FIG. 18 is a perspective exploded view of the power supply
assembly of FIG. 17;
[0029] FIG. 19 is an electrical schematic of the power supply
assembly of FIGS. 17 and 18;
[0030] FIG. 20 is a chart demonstrating the operational flow of the
reel assembly;
[0031] FIG. 21 shows a key switch assembly moveable between "off,"
"key," and "on" positions;
[0032] FIG. 22 is an illustrative embodiment of a remote control;
and
[0033] FIG. 23 is a perspective view of the idler portion of the
reel assembly and in particular the manual override feature.
[0034] Corresponding reference characters indicate corresponding
parts throughout the several views. The exemplification set out
herein illustrates embodiments of the powered pool blanket reel
assembly, and such exemplification is not to be construed as
limiting the scope of the powered pool blanket reel assembly in any
manner.
DISCLOSURE OF ILLUSTRATIVE EMBODIMENTS
[0035] The present disclosure will be described hereafter with
reference to the attached drawings which are given as non-limiting
examples.
[0036] A perspective view of pool blanket reel assembly 2 placed
onto a pool deck 4 illustratively at the diving board end 6 of pool
8, is shown in FIG. 1. As illustratively depicted, pool blanket
assembly 2 includes a pool blanket 10 shown here in the stored
rolled position on roller 12. Idler assembly 14 and drive assembly
16 are placed onto pool deck 4 suspending roller 12 above the water
in pool 8 and below diving board 18. As illustratively shown, the
rolled pool blanket 10 is tucked between the diving board and the
water which is illustratively considered to be an out-of-the-way
place for the wound pool blanket to be stored.
[0037] A perspective view of pool blanket assembly 2 is shown in
FIG. 2. This view shows idler and drive assemblies 14 and 16,
respectively, suspending roller 12 therebetween. This view also
shows roller tube 20 attaching roller portions 22 and 24 together.
In this illustrative embodiment, roller 12 is a multi-piece unit,
so roller portions of varying lengths can be attached to pool
blanket assembly 2 to accommodate covers of varying widths. Roller
tube 20 is affixed to roller portions 22 and 24 via pins 26 and 28.
As shown in this view, idler assembly 14 includes a housing 30
having a slot 32 allowing roller 12 to be adjusted vertically in
directions 34 and 36. Housing 38 of drive assembly 16 includes a
slot (not shown) disposed in housing 38 similar to slot 32 of
housing 30.
[0038] Progression elevation views of a portion of pool blanket
assembly 2 installed on pool 8 are shown in FIGS. 3-6. These views
show how the same pool blanket 10 can be used in a variety of pool
configurations having different diving board heights. The view
shown in FIG. 3, for example, shows diving board 18 in a relatively
low position indicated by reference numeral 40. This requires
roller 12 to suspend pool blanket 10 in a relatively close
proximity to pool 8. Drive assembly 16 that is placed onto pool
deck 4 positions roller 12 at a relatively low position as
indicated by reference numeral 42.
[0039] As shown in FIG. 4, when diving board 18 is positioned at a
higher location 44 relative to the distance indicated by reference
numeral 40 of FIG. 3, ultimately pool blanket 10 on roller 12 may
be positioned higher relative to the distance indicated by
reference numeral 42, also of FIG. 11n other words, the same pool
blanket assembly 2 can be adjusted to a different height relative
to the pool. In this example the position shown in FIG. 4 is higher
with respect to pool deck 4 and that shown in FIG. 3.
[0040] As similarly shown in FIG. 5, the relative distance of
diving board 18, as indicated by reference numeral 48, is a greater
distance from pool deck 4 than the distance indicated by reference
numeral 44 in FIG. 4. This allows distance 50 to be greater than
that indicated by reference numeral 46 in FIG. 4, as well. As a
consequence, roller 12 can be positioned farther above pool 8.
[0041] The elevation view shown in FIG. 6, similar to FIGS. 3-5,
again shows how when diving board 18 is located a greater distance
52 above pool deck 4 than that shown by reference numeral 48 in
FIG. 5, roller 12 similarly sits at a greater height, as indicated
by reference numeral 54, than the height indicated by reference
numeral 50 in FIG. 5.
[0042] As demonstrated by these figures, the height of roller 12
with pool blanket 10 can be adjusted as needed. This flexibility in
pool blanket assembly 2 allows it to accommodate the variety of
pool and diving board configurations.
[0043] Top and elevation views of pool blanket assembly 2 are shown
in FIGS. 7a and b. For illustrative purposes, pool blanket 10 is
removed. The top view in FIG. 7a shows idler assembly 14 and drive
assembly 16 with roller 12 spanning therebetween. In this
illustrative embodiment, idler assembly 14 includes a base 60 that
supports housing 30 for receiving one end of roller 12. Similarly,
drive assembly 16 includes a base 62 that is placed onto the pool
deck and supports the drive assembly for receiving the other end 66
of roller 12. As shown in the elevation view of FIG. 7b, the
distance indicated by reference numeral 68 is dependent on the
width of the pool, and roller tube 20 and roller portions 22 and 24
can be dimensioned accordingly. Also the height indicated by
reference numeral 70 is aligned with roller 12 which is adjustable
in directions 34 and 36.
[0044] An exploded view of pool blanket assembly 2 is shown in FIG.
8. This view shows idler assembly 14 including a bracket 76
extending upwardly therefrom. A longitudinally-extending opening or
slot 78 is disposed through the bracket 76. In this illustrative
embodiment, end 65 of roller portion 22 extends onto idler hub 80
which itself engages mount 82. Illustratively, bushings 84 can be
disposed about collar 86 extending from idler hub 80 to assist in
better rotation of roller 12. The position within slot 78 that
mounts 82 is fastened to determine the height of roller 12. Housing
30 includes slot 32, as previously discussed, to accommodate the
vertical positioning of roller 12.
[0045] Drive assembly 16 includes base 62 with its own bracket
assembly 90 extending therefrom. In this illustrative embodiment, a
slot 92 is disposed through a bracket, similar to slot 78 of
bracket 76 from idler assembly 14. Roller 12 can position anywhere
along the length of slot 92 to affect the height of roller 12 above
the pool. In this illustrative embodiment, a gear motor 94 attaches
to a motor mount 96 that attaches to bracket assembly 90. Roller
portion 24 attaches to drive hub 98 via fastener 100. Collar 102
attaches to gear motor 94 via pin 104 to connect gear motor 94 to
roller 12.
[0046] A detailed exploded view of drive assembly 16 is shown in
FIG. 9. This perspective view shows gear motor 94 attaching to
motor mount 96. An opening 106 in motor mount 96 allows drive rod
108 extending from gear motor 94 to extend therethrough. A bushing
110 extends into bore 106. As previously discussed, drive hub 98
fastens to roller portion 24 via fastener 100 and illustratively
nut 112. Hub mount pin 104 disposes through collar 102 that engages
drive rod 108. Hub mount pin 104 connects drive hub 98 to gear
motor 94 so as the motor spins, so too does roller 12.
[0047] To position motor mount 96 to a desired height above the
pool, it is attached to bracket face 120 via holes 122 disposed
about the periphery of slot 92. Mounting bolts 126 illustratively
dispose through star washers 124 and extend through holes 122.
Holes 122 extend the periphery of each side of slot 92 in order to
allow motor mount and, thus, roller 12 to be raised or lowered as
desired. It is contemplated that the position of these holes 122
corresponds to holes 85 on the periphery of opening 78 of bracket
76 on idler assembly 14. (See FIG. 8.)
[0048] The perspective, end, and side views of drive assembly 16
are shown in the progressive views of FIGS. 10-13. The views of
drive assembly 16 in FIGS. 10a and b, for example, show motor mount
96 attached to the lower most holes 122 disposed about slot 92 via
bolts 126. Hub drive 98, and consequently roller 12, is in the
lower most position similar to the configuration shown in FIG. 3.
Similarly, as motor mount 96 is attached to holes 122 slightly
higher about the periphery of slot 92, as shown in FIGS. 11a and b,
drive hub 98 is also raised, as further demonstrated in FIG. 4.
Consistently, FIGS. 12a and b show motor mount 96 raised even
farther up along slot 92 raising drive hub 98 and roller 12 higher,
similar to that shown in FIG. 5. Lastly, FIGS. 13a and b show motor
mount 96 attached to the upper most holes 122 along the periphery
of slot 92. This results in roller 12 being located at its upper
most extent, as also shown in FIG. 6.
[0049] An exploded view of gear motor 94 and associated components
are shown in FIG. 14. Gear motor 94 is shown attaching to motor
mount 96 via bolts 126 illustratively disposed through star washers
124. (See also FIG. 9.) This view also shows how drive rod 108
extending from gear motor 94 disposes through bore 106 of drive
mount plate 96. Drive rod 108 is also inserted into a bore 134 of
collar 102. Hub mount pin or dowel 104 is inserted into an opening
136 on collar 102 and extends through a corresponding hole 138 on
drive rod 108. This connection causes drive hub 98 to rotate as
drive rod 108 rotates. Of course as discussed previously, as drive
hub 98 rotates, roller 12 also rotates.
[0050] FIGS. 15 and 16 show a block diagram and electrical
schematic of an illustrative control system for operating pool
blanket assembly 2. As particularly shown in FIG. 15, an
illustrative embodiment includes a remote control 150 wherein
depressing signal button 152 transmits a signal 161 to receiver 154
through antenna 156. In this illustrative embodiment the system is
configured so button 152 only needs to be depressed momentarily to
roll up the blanket. There is no requirement that button 152 be
continuously depressed to completely roll up the blanket. In
alternative embodiments, it is possible to use standard systems
that require a continuous signal to roll and unroll the blanket.
When signal 161 is received by receiver 154, it is transmitted to a
relay 162 that further transmits signal 161 to gear motor 94. The
result is motor 94 turning roller 12. Without the need to
continually depress button 152, an operator is free to pull on the
blanket or adjust it while being rolled up.
[0051] Conversely, to roll out the blanket, button 160 can be
momentarily depressed. In this instance, an extension signal 159 is
sent to antenna 156 from remote control 150 and into receiver 154
which sends signal 159 to relay 158. Unroll signal 159 is then
transmitted to gear motor 94 to initiate the roll up process. Gear
motor 94 then rotates in the opposite direction unrolling the
blanket.
[0052] An illustrative electrical schematic in FIG. 16 shows a more
detailed view of this system. Receiver 154 receives power from
power supply 170 which houses a transformer 172 that receives power
from a central power supply (not shown) through a power plug and
cord 174. Power from transformer 172 is then sent to the receiver
154 via wires 176 and 178. When receiver 154 receives a signal from
remote control 150, it transmits unroll signal 159 through line 180
which goes back through power supply 170 and out through line 182,
relay 158, line 184, an illustrative plug connector 186, line 188,
and into gear motor 94 to unroll the blanket. Conversely, upon
receipt of a roll up signal, receiver sends signal 161 (see FIG.
15) through line 190 which illustratively passes through power
supply 170, line 192, relay 162, line 194, plug connector 196, line
198, and into gear motor 94 to begin rolling up the blanket through
roller 12. (See FIG. 1.)
[0053] Another illustrative embodiment of the present disclosure
includes a safety control system built into the operation of the
blanket reel assembly. In an illustrative embodiment, the reel
assembly includes a power system located within a reasonable
proximity of the pool. Thus, even though a remote control is used,
in order to get the remote control to operate the reel, a switch on
the power supply is activated manually. Because the switch is in
proximity to the pool, an operator can visually inspect the pool to
confirm no one is still in the pool before activating the reel.
Further, and in an illustrative embodiment, by switching the power
supply "on," a timer limits the amount of time within which to
activate the remote control to move the reel. For example, by
manually activating the switch to the "on" position, the system
will provide power for illustratively five minutes before shutting
off. Within that time the remote control needs to be activated. If
not, the power will shut off requiring the operator to confirm no
one is in the pool again before reactivating the blanket. It is
appreciated that the time interval before shutting off power to the
reel can be adjusted. Activating the remote control illustratively
restarts the timer sequence. A new time limit to actually activate
the motor begins. The motor is activated by illustratively
activating one of the buttons on the remote again. The motor will
continue to be activated for a predetermined amount of time
(illustratively 60 seconds). The first two timed sessions are
canceled allowing the motor to be activated for the full
predetermined length of time. This last period of time, however,
can be cut short if the button on the remote is depressed again.
Otherwise it will continue for the 60 second predetermined period
of time.
[0054] In an another illustrative embodiment, an off switch, which
may or may not be part of the same switching system as the "on"
switch, can be used to easily and manually shut the system down if
needed. As another illustrative embodiment, the remote control
itself may be equipped with multiple buttons or similar activators
that require simultaneous activation in order to move the reel. For
example, the remote control may include two buttons, both of which
must be depressed simultaneously in order to activate the reel.
This feature may make it difficult for younger persons to activate
the reel.
[0055] A perspective view of a power supply assembly 200 is shown
in FIG. 17. Supply 200 includes casing 202 configured to fasten to
another structure such as a wall or post. A cover 204 shrouds the
internal structures within casing 202. Extending from casing 202
includes a pigtail output 206 that leads or connects to the motor
94 for supplying power thereto. A power cord 208 also extends from
casing 202 and includes a plug 210 configured to insert into a
power outlet to supply power to power supply assembly 200. An
illustrative key switch 212 extends from casing 202 to control
functionality of the power supply. In an illustrative embodiment,
the key switch can allow or cut off power supplied from cord 208
from operating motor 94.
[0056] An exploded view of power supply assembly 200 is shown in
FIG. 18. In addition to structures previously discussed with
respect to FIG. 17, this view shows internal components such as a
transformer 214, remote control kit 216, relays 218, rectifier 220,
filter 222 along with a variety of fasteners 224, washers 226, and
nuts 228 to hold the components in the assembly together. Also
shown are collars 230 that couple cords 206 and 208 to casing
202.
[0057] An electrical schematic showing the operation of parts by
assembly 200 is shown in FIG. 19. Key switch 212 is illustratively
a three position spring to center switch. Turning switch 212 to the
"on" position sends a 12 VDC signal to the remote control receiver
216 to activate the five minute timer. After five minutes the
remote control receiver will automatically shut off. Turning the
key 212 to the off position sends a 12 VDC signal to the remote
control receiver 216 that turns off the remote and cancels the
timer.
[0058] Power cord 208, line filter 222, transformer 214, rectifier
220, and capacitors and resistors 221 take conventional 120 VAC and
convert it into 12 VDC. Relays 218 are controlled by the remote
control kit 216 to run reel motor 94. In an illustrative
embodiment, a thermal breaker 217 will cut power to the motor if an
overload occurs.
[0059] The chart in FIG. 20 shows the operational flow of power
supply 200 using remote control 150 (see also FIG. 15). As shown at
250, the first step is turning the key to the "on," position. This
starts a software timer that enables remote control 150 to operate
for a predetermined period of time. In an illustrative embodiment,
that period of time is about five minutes. With the remote receiver
216 activated, simultaneously pushing extension and retraction
buttons on the remote control for a predetermined period of time
(illustratively two seconds), as indicated at reference numeral
254, enables the remote control to become active for a
predetermined period of time (illustratively five minutes). As a
safety feature, at the end of any of these time periods, failure to
accomplish either the next step or moving the pool blanket will
ultimately result in system shut down requiring the operator to
start over. This lessens the time the operator will be away from
the pool. In fact, these operations assist in keeping the operator
in proximity of the pool area to confirm no one is in the water
before and during operation of reel assembly 2.
[0060] After the remote control 150 has been activated, the
operator has the choice to either push the retract button to start
motor 94 to uncover the pool, or, conversely, push the extension
button to start motor 94 in the opposite direction to cover the
pool. The motor will continue for, illustratively, a predetermined
period of time to either cover or uncover the pool. In an
illustrative embodiment, that time may be about 60 seconds. It is
appreciated that this time may change, depending on the needs of
the reel assembly. As indicated by reference numerals 264 and 266,
pushing either the retraction or extension buttons again during
that 60 second period will cause the motor to stop. If either
button is not pressed a second time to stop the motor as indicated
by reference numeral 267, the motor will continue to run until the
60 second timer times out. This timer will essentially cancel the
prior timers. At the end of the process, the key adjacent the power
supply can be moved to the "off" position as indicated by reference
numeral 268. This can be done at any time during the retraction or
extension process. Indeed, this can serve as a master shut off if
needed. If the power supply is not manually turned "off," the
remote will remain operational until the five minute timer times
out or after the predetermined time allotted for the motor to
run.
[0061] An illustrative embodiment of key switch 212 is shown in
FIG. 21. With a key inserted, rotating it clockwise as indicated by
reference numeral 280 activates the remote control receiver 216.
Conversely, rotating the key in the opposite direction 282
deactivates the remote control receiver 216. It is appreciated that
other types of buttons or switches can be used. It is notable that
whatever switch is used it has a safety feature associated with it
to limit access to the ability to activate the remote control
receiver 216.
[0062] A view of remote control or fob 150 is shown in FIG. 22.
This view shows the extend and retract buttons 160 and 152,
respectively, on remote control 150. It is appreciated that other
safety mechanisms can be used to limit unauthorized use of the reel
assembly, particularly by children. In this embodiment, the remote
control is the only mechanism to activate the motor. Alternate
embodiments, however, may include a programmable code system.
[0063] A perspective view of idler assembly 14 is shown in FIG. 23.
This view demonstrates an illustrative embodiment of a manual
override feature to reel assembly 2. If a loss of power to the
motor occurs or the motor breaks, the blanket can still be wound or
unwound as desired. Extending from bushing 84 of idler assembly 14
is hex head bolt 594. This hex head bolt is attached to roller
portion 22 so both rotate in concert. Under a loss of power, a
wrench can be used to grip and rotate nut 594, thereby rotating
roller portion 22.
[0064] Corresponding reference characters indicate corresponding
parts throughout the several views. Although the present disclosure
has been described with reference to particular means, materials,
and embodiments, from the foregoing description one skilled in the
art can easily ascertain the essential characteristics of the
invention and various changes and modifications may be made to
adapt the various uses and characteristics without departing from
the spirit and scope of the invention set forth in the claims that
follow.
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