U.S. patent number 3,787,918 [Application Number 05/283,947] was granted by the patent office on 1974-01-29 for shoe polishing machine.
Invention is credited to Robert J. Ebert.
United States Patent |
3,787,918 |
Ebert |
January 29, 1974 |
SHOE POLISHING MACHINE
Abstract
A coin controlled shoe shining machine having a shiftable shoe
receiving carriage within a housing, the carriage being shiftable
back and forth by an operator when his shoe is resting on the
carriage. The coin initiates the operation of a timer which
controls the operation of solenoids for activating polish
dispensers positioned on each side of the carriage. The timer also
controls the operation of the motors for two brushes which engage
the side of the shoe as the carriage is advanced and retracted
along the trackway. Additionally, the timer controls the operation
of a third brush which engages the toe portion of a shoe as the
carriage is advanced and retracted. The timer is set for
controlling the operation of the solenoids and the brush motors for
predetermined intervals of time. The invention also includes the
use of two such units mounted side-by-side within a housing for
shining black shoes and brown shoes, as well as one such unit with
separate dispensers for black and brown polish on each side of the
shoe, together with means for selectively operating the machine to
shine brown or black shoes.
Inventors: |
Ebert; Robert J. (Chesterland,
OH) |
Family
ID: |
23088255 |
Appl.
No.: |
05/283,947 |
Filed: |
August 28, 1972 |
Current U.S.
Class: |
15/31; 15/34 |
Current CPC
Class: |
A47L
23/02 (20130101) |
Current International
Class: |
A47L
23/00 (20060101); A47L 23/02 (20060101); A47l
023/02 () |
Field of
Search: |
;15/30-32,34,97A |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Roberts; Edward L.
Attorney, Agent or Firm: Albert R. Teare et al.
Claims
I claim:
1. A shoe shining machine comprising
a housing having a trackway therein extending from the front toward
the back of the housing,
a carriage movably supported on the trackway and adapted to be
advanced and retracted along it by movement of the foot of an
operator when his shoe is resting on the carriage,
the housing having an opening above the trackway through which the
foot of an operator may be inserted to rest his shoe on the
carriage,
two polish applicators within the housing,
an electric solenoid for actuating each polish applicator,
a pair of brushes mounted for rotation on axes normal to the
trackway and positioned forwardly of the retracted carriage and
adapted to engage the sides of a shoe as the carriage is advanced
and retracted along the trackway,
a third brush mounted for rotation on a horizontal axis and
positioned above the trackway and adapted to engage the toe portion
of a shoe as the carriage is advanced and retracted along the
trackway,
electric motors for actuating the respective brushes,
the said pair of brushes and the motors for the first mentioned
pair of brushes being mounted for swinging movement laterally
toward and away from the trackway as the carriage is advanced and
retracted by the operator,
the third brush and the motor for the third brush being mounted for
swinging movement upwardly and downwardly as the carriage is
advanced and retracted by the operator,
a timer,
an electric motor for actuating the timer,
means for initiating the operation of the timer motor and
means activated by the timer for actuating the polish applicator
solenoids and the brush motors in a predetermined sequence and for
predetermined intervals of time.
2. A shoe shining machine according to claim 1, wherein
each of the side brushes is attached to an arm which is pivotally
mounted within the housing below the trackway for movement
laterally of the trackway upon engagement of the side brushes with
a shoe of an operator.
3. A shoe shining device according to claim 2, wherein
spring means yieldably urge each of the motor supporting arms
toward each other and wherein
stop means are provided for limiting the movement of the side
brushes toward each other.
4. A shoe shining device according to claim 1, wherein
the motor for operating the third brush is attached to an arm which
is pivotally mounted within the housing above the trackway.
5. A shoe shining machine according to claim 4, wherein
spring means are utilized for partially counterbalancing the weight
of the motor and arm.
6. A shoe shining machine according to claim 1, wherein
the polish applicators are actuated and deactivated before the
motors for the side brushes are started.
7. A shoe shining machine according to claim 1, wherein
the timer includes switches in circuit with the solenoids and the
brush motors for operating them in a predetermined sequence.
8. A shoe shining machine according to claim 1, wherein
the housing has removable interlocking front panels for providing
access to the interior of the housing.
9. A shoe shining machine according to claim 8, wherein
means are provided accessible only within the housing for locking
the panels thereto, and wherein
one of said panels has an opening therein, together with a key
actuated removable closure for the opening.
10. A shoe shining machine according to claim 1, wherein
two additional polish applicators are mounted on opposite sides of
the trackway in tandem relationship to the first mentioned pair of
polish applicators,
one of such pair of applicators having black polish therein and the
other pair having brown polish therein, and
a switch in circuit with the applicator solenoids for selectively
operating one pair of applicators independently of the other
pair.
11. A shoe shining machine wherein
two units according to claim 1 are positioned in side by side
relationship in a common housing,
one of such units being provided with polish applicators for black
shoes and the other being provided with polish applicators for
brown shoes, and wherein
a switch in circuit with the respective timers is provided for
selectively operating one of the units independently of the other.
Description
BACKGROUND OF THE INVENTION
Power-actuated coin controlled shoe shining machines heretofore
known to the applicant have been complex in construction and have
required an extensive organization for servicing the machines.
There has, therefore, been a need for a portable self-contained
shoe shining machine which is simple in construction and which will
provide a satisfactory finish with few moving parts and without the
need for extensive maintenance and repair.
SUMMARY OF THE INVENTION
The present invention overcomes the difficulties inherent in
previously known coin controlled machines in that a housing
encloses a pair of rotatable brushes which are adapted to engage
the side of a shoe as the operator advances and retracts a carriage
upon which his shoe rests after polish has been applied to the shoe
and before the shoe reaches the brushes. A third brush is mounted
for rotation for engaging the toe portion of the shoe after the toe
portion has advanced beyond the first mentioned brushes. The
deposit of a coin within the machine initiates the actuation of a
timer for activating polish dispenser solenoids and for actuating
the brush motors at predetermined intervals of time. At the
completion of the polishing of one shoe the timer provides a dwell
for enabling the operator to remove one foot from the carriage and
to insert his other foot upon it for repetition of the cycle, at
the end of which the current to the timer and to the parts
controlled thereby is automatically disconnected from the service
line.
The invention additionally includes a modified arrangement for
shining brown as well as black shoes by mounting two units in
side-by-side relationship within a common housing and by supplying
one unit with black polish and the other with brown polish,
together with a switch in circuit with the respective timers for
selectively operating one of the units independently of the
other.
The invention also includes a single set of brushes but with
separate dispensers for black and brown polish on each side of the
shoe, and a switch for selectively operating the polish
dispensers.
DESCRIPTION OF THE DRAWINGS
In the drawings,
FIG. 1 is a perspective view of a housing, having a unit
constructed in accordance with the present invention contained
therein:
FIG. 2 is a front view of the housing;
FIG. 3 is a vertical section taken on the plane indicated by the
line 3--3 in FIG. 2;
FIG. 4 is a section taken on the plane indicated by the line 4--4
in FIG. 3;
FIG. 5 is a section taken on the plane indicated by the line 5--5
in FIG. 3;
FIG. 6 is an enlarged view of a portion of the unit shown in FIG.
3;
FIG. 7 is a perspective view of a housing having two of the units
constructed in accordance with the present invention contained
therein;
FIGS. 8, 9 and 10 are elevational views of a timer which is used
with the unit and illustrating different cam arrangements;
FIG. 11 is a timing chart for indicating the sequence of the
various operations which are controlled by the timer;
FIG. 12 is a schematic wiring diagram for the motor and solenoid
circuits, for the unit shown in FIGS. 1 to 6;
FIG. 13 is a sectional view similar to FIG. 4 but showing a
midified construction which comprises two pairs of polish
applicators, one for brown, and the other for black shoes;
FIG. 14 is a schematic wiring diagram for the modified construction
of FIG. 13.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
In the embodiment shown in FIGS. 1 to 6 inclusive, a shoe shining
unit embodying the present invention is mounted within a housing,
indicated in general at 10, and having a base panel 11, a back
panel 12, a top panel 13 and three panels indicated at 14, 15 and
16, which constitute the front wall of the housing. The panel 15
has two sections 15A and 15B. Panels 17 and 18 form the side wa ls
of the housing. An opening 20 in the panel 15 provides a well into
which the operator inserts his foot and rests his shoe upon a
carriage 25 which is shown as having rollers 26 engaging a trackway
27, the latter of which extends from front to back of the housing
and is inclined upwardly from front to back so that the carriage
would be moved by gravity to the retracted position beneath the
opening of the housing where it is in position for receiving the
shoe of the operator. Stops 22 and 23 serve to limit the forward
and rearward movement respectively of the carriage. The trackway is
supported within the housing upon beams 28 and 29 which extend from
the front panel to the rear panel 13 and are attached thereto.
The invention shown in FIGS. 1 to 6 includes two polish dispensers
which are illustrated in the form of commercially procurable spray
cans, indicated at 30 and 31, with a depressible valve button 32 at
the top of each can.
The cans are positioned on opposite sides of the trackway with the
spray discharge openings on the buttons set to discharge polish in
spray form upon the sides and toe portions of a shoe which is
positioned on the carriage while the carriage is in a retracted
position. The spray cans are shown as being supported upon a cross
beam 35 (FIGS. 4 and 5) which in turn is rigidly connected to the
housing.
To depress the button of each spray can, a depresser in the form of
a bar 36 is removably attached at one end to a button 32 and is
adjustably mounted at the other end upon a plunger 38, the latter
of which extends lengthwise of the spray can and is actuated by a
solenoid 39. A spring 40 surrounding the plunger operates to return
the depresser 36 to its original position and thereby to cut off
the spray when the solenoid is disconnected from the circuit.
To brush the sides and heel portions of a shoe, a pair of brushes
45 and 46 are positioned on upright axes and in a position to
engage the side portions of a shoe as the shoe is moved
therebetween upon the carriage 25. The brushes are mounted for
rotation upon shafts 47 and 48 respectively, the latter of which
are respectively driven by electric motors 49 and 50.
The brushes 45 and 46 are intended to be swung outwardly away from
each other as the shoe of an operator is moved therebetween, and
for accomplishing such purpose, the motors 49 and 50 are rigidly
connected to one end of arms 51 and 52 respectively, the latter of
which are mounted at the ends opposite the motors for swinging
movement upon pivot pins 53 and 54 respectively. As shown in FIGS.
3 and 4, each motor is attached to its associated arm by a strap
55, and the arms are biased to swing toward each other by springs
57 and 58 respectively. Suitable stops 34 carried by the beams 28
and 29 limit the inward movement of the arms and thereby limit
movement of the brushes toward each other. The pivot pins 53 and 54
for the respective arms are journaled in upper bearings 59 beneath
the respective beams 28 and 29 and in lower bearings 60 which are
carried by a cross beam 61.
To polish the toe portion of a shoe, a third brush 65 is mounted
for rotation on a horizontal axis upon a shaft 66 of an electric
motor 67. The brush is disposed in the path of a shoe as it is
moved forwardly and after it has passed between the brushes 45 and
46. The motor 67 is attached by a band type clamp 68 to an arm 69,
the other end of which is connected to a pivot pin 70, the latter
of which is journaled in bearings 71 and 72 mounted respectively on
the side panel 17 and the beam 28. To partially counter balance the
weight of the motor and brush, a spring 75 is attached at one end
to the motor housing and at the other end to the rear panel 12. The
force exerted by the spring allows the brush to remain normally in
the downward position, yet allows it to move upwardly merely by the
pressure exerted against it by a shoe as the carriage is moved
inwardly by the foot of an operator. An adjustable stop 77 (FIG. 3)
limits the downward movement of the arm 69.
The well 20 into which the foot of an operator is inserted for
placing his shoe upon the carriage 25 has walls 78 and 79 which
extend upwardly from the beams 28 and 29 respectively and which
also extend from the front wall 16 to the rear wall 12 of the
housing 10. Each of the walls 78 and 79 has an opening 80 through
which polish may be sprayed onto a shoe which rests upon the
carriage and an additional opening 81 through which the brushes 45
and 46 may move as they are swung inwardly and outwardly during the
polishing operation. The wall 78 has an additional arcuate opening
82 through which the shaft of the motor 67 may be moved as the
brush 65 is swung upwardly and downwardly during the polishing
operation.
To provide adequate time for a satisfactory polishing operation,
the invention includes a timer which may be in the form of an
electric motor 85 together with cams which are rotated thereby for
actuating switches to control the circuits for the respective
solenoids and motors in a prearranged sequence of time. For
example, it is contemplated that a complete operation will be
accomplished in 48 seconds for the unit illustrated in FIGS. 1 to 6
inclusive. An illustrated sequence of operations for a single
revolution of the cam shaft 86 is illustrated in FIG. 11, wherein
the starting point is at the horizontal line and wherein the angle
A represents a first polish spray for 11/2 seonds, and the angle B
indicates a dwell of three-fourths seconds to allow time for the
spray to settle upon the shoe. The angle C represents 19 seconds
during which time the brushes 45, 46 and 65 are rotated. The angle
D represents a 5 second dwell in the operation of the brushes,
during which time the operator would remove one foot from the
carriage and replace it with the other foot. The angle E represents
a 11/2 second spray operation for the second shoe, followed by a
dwell, indicated at F, of 1 second for the sprayed polish to settle
on the shoe. The angle G represents 19 seconds for the second
polishing operation, while the angle H represents a one-fourth
second clearance between the termination of the second polishing
operation and the start of a succeeding polishing operation.
The cams which are actuated by the motor 85 are mounted in line on
the timer cam shaft 86, and for the purpose of illustration three
such cams, together with switches controlled thereby, are
illustrated in FIGS. 8, 9 and 10 respectively. Thus, in FIG. 8 a
cam 87 would actuate the switch 88 to control the start and stop
cycles. In FIG. 9, a cam 90 would actuate a switch 91 for
controlling the first and second spray cycles, while in FIG. 10 the
cam 92 would actuate the switch 93 to control the first and second
operation of the polishing brushes.
The operation of the machine may be initiated by a coin control
mechanism, indicated in general at 95 in FIG. 3, with the coin
entrance slot 96 being positioned in the top panel 13, and the coin
return slot being indicated at 97 on the upper front panel 14. Such
mechanism is procurable upon the open market and includes a coin
controlled switch which is used for energizing a relay 98 (FIG. 8),
which, in turn, lifts a switch finger 99 out of a notch on the cam
87 where it locks out on the peripheral surface of the cam. The
switch 88 closes the circuit to the timing motor 85 and closes the
circuit to a track lamp 101.
Operation of the timing motor 85 rotates the cams for carrying out
the sequence of operation described in connection with the diagram
of FIG. 11. A second lamp 102 in the top panel remains lit so long
as the machine is plugged into a service line. Such lamp
illuminates an instruction panel 103 which is positioned on the top
panel 13.
To provide access to the interior of the machine for maintenance
purposes, the front panel 14 and the two sections 15A and 15B of
the panel 15 are removable but are normally locked against removal
by unauthorized persons. In the form shown, the inclined front
panel sections 15A and 15B are positioned on the side panels and on
the lower front panel 16 and are locked in place by clamps
indicated in general at 104 and 105 which are actuated manually by
hand wheels 106 and 107 which, in turn, are shown as being mounted
for rotation upon a horizontal partition 108.
The upper front panel 14 rests upon the inclined panel sections 15A
and 15B and holds them in place. The panel 14, in turn, is locked
in position by means of a clamp screw 110 which is adapted to
engage an internally threaded tube 111. The clamp screw 110 extends
through aligned openings in cross braces 112 and 113, the outer
ends of which are connected to the rear of the panel 14 at 115,
116, 117 and 118 respectively. Access to the clamp screw 110 is
provided through an opening 120 which is normally closed by a key
actuated lock 121.
In operation, assuming that the machine has been plugged into a
service line at an electrical outlet 125, an operator places his
foot upon the carriage 25 as shown by the full line position 126 in
FIG. 6. He then deposits a coin in the slot 96 and keeps his foot
stationary until polish is applied and the brushes are rotated. He
then moves the carriage forwardly by pushing on it with his foot,
thereby passing the shoe between the brushes 45 and 46 and under
the brush 65. The brushes 45 and 46 are forced outwardly by the
shoe, but are held against it by the springs 57 and 58 so as to
follow the contour of the shoe and to remain in contact therewith.
Similarly, the toe portion of the shoe forces the brush 65 upwardly
and it, in turn, follows the contour of the shoe. The operator can
then move his foot backwardly and forwardly a few times during the
polishing operation. At the end of a predetermined period of time,
the brushes cease rotating, whereupon the operator removes his foot
from the carriage and places the other foot upon it, whereupon the
cycle of applying polish and rotating the brushes is repeated for
the second shoe. At the end of a preset period of time, which is
fixed for one revolution of the timer cam shaft, the current is
automatically cut off and the machine is in readiness for the
deposit of a succeeding coin. For use in small owner operated shops
the coin mechanism may be replaced by a push-button switch, to be
operated by the owner who could collect the coin from a
customer.
FIG. 12 is a schematic wiring diagram for the electrical equipment
utilized in the embodiment of FIGS. 1 to 6 inclusive, wherein the
service lines for the source of electrical supply are indicated at
L-1 and L-2, respectively. In the diagram the electrical items
heretofore identified are indicated by the same reference
characters as those previously used. Thus, when the machine is
connected to the service lines and the main switch 125 is closed,
the lamp 102 is lit and remains in such condition so long as the
machine is plugged into the service line. The deposit of a coin
within a coin mechanism, or the manual actuation of a push button
member, where the coin mechanism is not utilized, closes a switch
130 which momentarily energizes the relay 98. The relay moves the
switch finger 99 out of a holding notch on the cam 87, and the
finger is held out of engagement with the notch by a spring latch
131 which is carried by the cam. Movement of the finger 99 closes
the switch 88 which energizes the timing motor 85 and also a track
lamp 101. Actuation of the motor 85 rotates the cam shaft 86 and
the cams carried thereby. One of such cams closes the switch 91
which energizes the solenoids 39 to operate the polish applicators
for the predetermined period of time determined. At the
pre-arranged period of time a cam closes a switch 93 to close a
circuit through the brush motors 49, 50 and 67, respectively. The
cams are designed to accomplish the sequence described in
connection with FIG. 11 for completion of the polishing of both
shoes.
A modification of the invention is shown in FIG. 7 wherein the
housing 40 contains two complete but independent shoe polishing
units having the construction shown in FIGS. 1 to 6 inclusive. The
units are positioned in side-by-side relationship and are adapted
for polishing black shoes and brown shoes, respectively. A manually
operated selector switch 141 enables the operator to select the
unit to be energized. For example, the well 142 shown on the left
of the center line in FIG. 7 shows side brushes 143 and 144 and a
toe brush 145, together with a carriage 146 upon which the shoe of
the user is placed. Such unit would be equipped with polish
applicators for polishing black shoes and the operation would be
the same as that described in connection with FIGS. 1 to 6
inclusive.
The well shown at the right of the center line of the housing in
FIG. 7 and indicated at 147 is intended for use in connection with
the polishing of brown shoes and, for such purpose, the side
brushes are shown at 148 and 149 and the toe brush is shown at 150.
A carriage upon which the shoe is placed is also shown at 151. Such
unit is equipped with polish applicators for applying brown polish
and theoperation of the unit is the same as that previously
described in connection with FIGS. 1 to 6 inclusive.
A schematic diagram (not shown) for the arrangement of FIG. 7 would
comprise two diagrams similar to that of FIG. 12 disposed in
side-by-side relationship with a manual selector switch, such as
141, for enabling an operator to select one unit for operation
independently of the other unit.
In FIG. 13 I have shown a further modification which is somewhat
similar to that of FIGS. 1 to 6 inclusive wherein like parts are
identified with the same reference characters. The construction of
FIG. 13, however, differs from that of FIGS. 1 to 6 in that the
housing has one set of polish applicators for black shoes and
another set of polish applicators for brown shoes. Thus, in FIG. 13
the applicators indicated at 30 and 31 are intended for use with
black shoes while the applicators indicated at 154 and 155,
respectively, are intended for use with brown shoes.
A schematic wiring diagram for the modification of FIG. 13 is shown
in FIG. 14 wherein like parts of FIG. 12 are designated with the
same reference characters. FIG. 14 differs from FIG. 12 by the
inclusion of an extra set of applicator solenoids 156 and 157 which
are controlled by the cam actuated switch 91A. A manually operable
selector switch 160 enables an operator to select the color of
polish in advance of starting the machine.
An advantage of the present invention is the compactness of the
structure, coupled with ease of accessibility by authorized
personnel for maintenance purposes.
* * * * *