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‘ Jan. 14, 1947.
w. H. BRADLEY ‘
2,414,188
DRIVE MECHANISM
Original Filed March 25, 1943
fnqenfor
Patented Jan. 14, 1947
2,414,188
UNITED STATES PATENT‘. OFFICE’
2,414,188
DRIVE MECHANISM
William H. Bradley, Fort Wayne, Ind., assignor to
‘ _ Horton Manufacturing Company, Fort Wayne,
Incl,
a corporation of Indiana
Application March 25, 1943, Serial No. 480,433,
which is a division of application Serial No.
341,226,.‘ June 19, 1940. Divided and this ap
plication June 23, 1944, Serial No. 541,717
2 Claims. ( CI. 38—60)
The invention relates generally to drive mech
anisms and more particularly to a drive mecha
nism for operating a roll in an ironing machine.
This application is a division of my copending
application, Serial No. 480,433, ?led March 25.
1943, which latter application was a division of
my application, Serial No. 341,220, ?led June 19,
1940, now matured into Patent No. 2,338,163, is
sued January 4, 1944.
2
be rotated, if the roll were to be manually rotated,
and because of the large amount of reduction in
speed between the motor and the rolLthe force .
required to manually
the roll‘wo‘uld prac
tically prohibit use of rotate
the machine in this‘ man
‘ ner.
On the other hand it is_undesirable to per: -
mit the roll to be manually rotated too freely. '
In the drawing, an ironer is shown for. purposes
of illustration, which comprises a base Ii! having
10 a head H at one end thereof. The head I] sup
ports a gear casing 12, and extending from the
chine of the type having a pair of cooperating
gear casing is a roll supporting shaft‘ It‘. ‘ The
ironing elements, one of which is a roll, which
roll, indicated at I4, is one of a pair of cooperate .
drive mechanism connects the drive motor of
the machine with the roll in such a manner that 15 ing ironing elements, the other of which in the‘
present instance is shown as a shoe I5 supported
the roll may be easily turned forwardly by hand
for shifting movement toward ‘and from the roll
to facilitate placing an article between the two
14 by means of a pivoted arm 16. Such shifting
ironing elements.
movement of the shoe I5 is effected, in the pres
Another object is to provide a novel drive mech
ent instance, by means of a hand lever 11.
anism in which the connection between the driv
ing and driven members includes a simpli?ed 20 In the machine illustrated in the drawing, the‘
gear casing I2 is positioned within the roll 14‘
pawl and ratchet, permitting the driven member
and is supported by the head II. The gear cas—‘
to be manually turned forwardly and accomplish
ing 12 carries a motor 26 located preferably- with-1
ing the desired drive with a minimum number of
parts.
>
'
in the head ll. ,Withinthe gear casing I2 is
Other objects and advantages will become ap 25 gearing connecting the motor 20 with the ‘roll
shaft 13, and in the operation of the machinethe
parent in the following description taken in com
The general object of the invention is to pro
vide a novel drive mechanism for an ironing ma
nection with ' the accompanying drawing, in
which:
'
'
motor is adapted to operate only during the time‘
when the shoe 1 5 is in operative relation with the‘
roll M, a switch (not shown) being provided in
Figure 1 is an end elevational view of. an iron~
ing machine provided with~a drive mechanism 30. motor circuit for stopping ‘the‘motor as an. incl;
dent to movement of the shoe l5 away from-the
embodying the features of the invention.
roll. The shaft of the’ ‘motor 28 extendsv into
Fig. 2 is a longitudinal vertical sectional view
of the machine shown in Fig. 1.
Fig. 3 is a vertical sectional view taken on the
the gear casing I2 and on its inner end is provid
ed with a pinion 19 adapted to drive gearing con
nected to the roll shaft I3, the latter extending
into the casing for such connection.
In the operation of an ironing machine, it is
drive mechanism.
desirable to be able to freely rotate the roll in a
A drive mechanism of the character herein dis
forward direction by hand either when the roll is
closed is such as to provide a gear reduction from
a relatively high speed electric motor to a driven 40 stopped or when it is being driven by the motor.
Thus when an article to be ironed is placed upon
shaft operating at a substantially lower speed,
line 3_3 of Fig. 2.
Fig. 4 is a perspective View of a portion of the
and its chief characteristic is to provide a one-way
the roll, it is sometimes more convenient to place
the advance edge of the article along the top of
the roll where it may be smoothed out by hand be
fore coming in contact with the shoe. It is then
forward direction when the motor is stopped. A
frequently desirable to turn the roll by hand for
drive mechanism of this character ?nds particu
wardly to bring the edge of such article into the
lar use in an ironing machine of the household
space between the roll and the shoe before the
type. Such a machine usually comprises a pair
shoe is shifted into operative relation, to avoid
of ironing elements, one of which is a roll. In
the use of such machine the operator frequently 50 the chance of the article being wrinkled when
?rst engaged by the shoe. If the article is
places an article to be ironed upon the roll and
clamped against the roll by the shoe after it has
rotates the roll manually to move the article into
been moved into the ironing area, it will usually
ironing position. Without a one-way driving
continue to be drawn into such area without
connection in the mechanism, the entire drive
mechanism, as well as the motor, would have to 55 chance of wrinkling. While relatively free rota
tion of the roll is desired as described above, still
driving connection in the gearing which permits
the driven member to be manually rotated in a
2,414,188
3
4
tor. However, the gear ratio between the gear 2!
and the pinion 22 as well as the drag of the pawl
25 on the pinion produce su?icient friction to pre
vent the. rollfrom being-rotated. at the slightest
the roll should not be so free as to rotate at the
‘ slightest touch.
In the present instance such mode of operation
of the machine .is permitted since the driving
touch. Thusythe roll may be manually rotated
mechanism is?‘ (if the'o‘ne-way typeiso thatatheroll
when desired and to the extent desired but will
stop when the hand is removed from the roll.
‘This obviously assists in placing an article to be
to provide as compact a gearing or drive mecha
ironed in between the roll and the shoe.
nism as possible. Moreover, the simpler “the
The pinion 22 may be manufactured in a length
, gearing can be and still accomplish the desired 10 suf?cientto provide. both meshing with the gear
?exibility of operation, the less ‘expensive it is to
21 and engagement with the pawl 25 at a very
manufacture the mechanism. ‘In'the presentin
slight'increase in cost over the cost of a pinion
stance the one-way drive is in the form of a pawl
.long enough merely to mesh with the gear 2!.
and ratchet device of extremely/simple character
The cost of a separate ratchet is thereby elimi
and having a minimum number ‘of-‘parts.
nated and the number of parts in the drive mech
may be ‘freely turned forwardly. Since the gear
casing I2 is mounted within the roll, it is desirable
Speci?cally, the gearing'or drive "mechanism
anism 'is consequently reduced.
Thus, I . have
provided a novel drive mechanism including a
for driving the roll includes a - driven 'gear ‘21
mounted on the end of the roll shaft l3:;and"1o-
simpli?ed pawl and ratchet connection permit
cated within the gear casing l2. Meshing with
ting rotation of the drivenvpart manually‘when
theigear 2;! is apinion‘2‘2 carried on a stub shaft 20 the‘motor is stopped.
'
.
.
zajournaieu' in the wall'of theig‘earcasing. .Als'o
‘ I claim:
mou'ntedion'the'stub‘shaft His .9, drive gear 24
I
shaft,_ a driven gear mount'edon said roll
roll
shaft, a stub shaft provided with an elongated
pinion, .a portion ‘of which meshes with said
driven .gear,..a drivev gear loosely mounted on said
stub shaft adjacent said pinion, and a one-way
reoucmgxgears' with'the motor ‘pinion I19.
‘Thai-gear 24- is adapted‘, to b'e'secu'red ‘in ‘driving
relation with thegpinion ‘22 by means or 'aipawl
an'd ‘ratchet conneotioni'providing the one-way
drive. ‘To simplify the c'ohstruotioh,'the pinion
221s substantially longerthan' is necessary merely
-
1.. In an ironing machinathe combination of a
‘positioned ina'plane spaced from the, plane'oi
the ‘gear-‘32! and connected throu'g'hiother speed
driving device-carried-bysaid drive gear andar
30
tor-meshv withlthe ..gear 2 l in order .to ‘provide a
portion extending into the ‘space between ‘the
' gears T2l land. "24 and adjacent the gear it.
Mounted on; the adj‘ jcent "face of‘thefgear 24 by
meansof apivot pin" 26' is a, paw1‘25 which is urged
toward" the extending portion _"of vthe ‘jpinion‘ 22
by-means of a torsion-fspring‘l? anchore’d'at its
ends toYthegear-Mand thepawl 25. The pawl 25
ranged .for one-way driving engagement with
another portion of said pinion the gear ratio vbe
tween said pinion and said. driven gear being such,
that manual rotation'oij'the roll will cause'rela
tively fast rotation of the pinion, and the friction.
of the latter will tend to quickiy‘stop the‘r‘otation
when the hand is removed from the roll.
2. In an ironing machine, roll driving mecha
nism comprising a roll shaft, a‘roll gear ‘rigidly
‘mounted on'sai'd shaft, a pinion meshing‘with
thus engages‘ between the 1 teeth‘ of the pinion‘ 22
said irollgear‘and projecting beyond one face
to utilize lthe’l-atte'r' as .a 'ratch'etqan'd thereby 40 thereof, a drive gear coaxial with said pinion, and
effect a driving relation.
_
a spring-pressed pawl carried by said ‘drive gear
“In operation, when the drive'gear-M rotates
and engaging the projecting portion of said pin
in the direction indicated by. the arrow‘ in‘Fig. "l,
ion to provide a one-way driving connection with
the pawl"25 engages’thepiriion and provides ‘a
drivingrelation therewith to "effect rotation of
the'roll shaft‘ l3‘ through the gear 2|. When‘the
said pinion but permitting rotation of the pinion
45 by. manual rotation of the roll shaft, the friction
roll isgrota‘itedi'forwardly by hand,v the pinion" 22 is -
rotatedin~ suchldirectioniasl to force‘ thelpawl. 25
outtoi-the -way~ against the pressure of ,the ‘spring
21,-ithus permitting “the , roll to be ireely ’ turned 50
without. rotating theuentire-gearing. and the mo
resulting from the rotation of said pinion‘ and the
drag “of said pawl on'said pinion tending tostop
rotation of the roll when the hand is removed
therefrom.
'
WILLIAM ‘H. BRADLEY.
'
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