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Dec. 31, 1946.
|_. D. HERRICK
LEG EXERCISER
Filed April 5,‘ 1944-
'
2,413,351
I
2 Sheets-Sheet 1
as. ‘$1, 1946.
1.. D. HERRICK
2,413,351
LEG EXERC ISER
Filed April 3, 1944
2 Sheeté-Sheet 2
2,413,351
Patented Dec. 31, 1946
UNITED STATES ‘PATENT
O‘FlFlC-E
2,413,351
‘LEG EXERQISER
'. Lloyd D. Herrick, Jackson County,'-M0.
_.; Application April ' 3, 194.4,; Serial No.1;5'29,255
'41Claims. (Cl.f128-—'25)
1
My invention relates to improvements in leg
exercises. It is, particularly well adapted for ex
ercising the feet and ankles.
'
‘
One of the objects of my invention is the pro
vision of an exerciser of the kind describedhaving
novel means for ?rmly holding the heel and toe
'2
-. ‘Similar characters ,oi-reference ‘designatesimi
.lar parts inthe. differentviews.
l designates vat »supporting_,,hase onv whichis
mounted a tubular column 2 having, at its upper
.
portions of the operator’s foot while said holding
means are operated to twist, turnvand swing the
.heel, toe and ankle. portions in many directions,
while swinging the‘ lower portion of the leg around
a horizontal axis.
A further object of my invention is togprovide
novel means by whichsaid heel and toe holding
end twrogpa-rallel spaced, apart ball bearing casings
-3 in which are respectively rotatablymounted on
.a horizontal'transverse axis opposite ends. of.-a
hub 4, havingextending through it from one end
to the other an oblique cylindrical :hole. 5.,which
intersects the axis ‘of the hu .
Q A crank means comprising two ‘cylindrical
cranks having their inner endlportionsalined with
each other and designatedmyf?, are ?ttedand
overlap each; other in the ‘oblique hole. 5.,in which
,
theyare respectively?rmlyheld by two .set screws
Still another object of myv invention is the pro 15 1, which are mounted in two threaded'holes-Iex
vision of novel means by which the heel, toe and
tending inwardly.- one from each end of the hub. 4,
ankle portions of both legs of the operator may
as shown in Fig. 9. ,The innerends of the cranks
be simultaneously swung, and, exercised in the
are notched, as-shownand overlapeach other
manner before described‘ with reference to the
with
the filat sides ‘,of the notched‘ portions 8
.20
exercising of the lower portion of;one leg.
.against ,each other, to hold 'them from relative
The novel features of my invention. are here~
rotation, the set v.screws"! respectively bearing
inafter fully described and claimed.
against the outersides of the portions 8.
In the accompanying drawings, which illustrate
The outer ends of’the oblique portions 6 ofthe
the preferred embodiment of my invention,
two
alined cranks terminate respectivelynin two
Fig. 1 is a plan view showing the foot support 25 extensions 9, _which are parallelwith each other
ing crank means disposed. in the medial position
but extend in opposite directions?from' the ob
in which the right foot is elevated and the left foot
lique portions 6. at an angle‘ thereto-and jat~an
means are soswung.
oblique angle to the axis of the hub 4.
lowered.
Fig. 2 is an end elevation of the‘ exerciser with
the parts as shown in Fig. 1.
'
'
>
‘Two heel supporting means are provide_d,>—one
to-support the right heel and‘ the otherto sup
Fig. 3yis a side. elevation of the'exerciserpwith
port the left heel. , ' The two heel supporting
parts removed. and the crank means‘ ShOWI'liiIl
means are mounted respectively at opposite sides
ofthe' hub 4 cn'the ‘oblique portions 6 of the crank
. cross section.
'Fig. 4 is. aside view: of;the right heel holding
means, shown partly in vertical section andpartly
means.
‘Each heel supporting means ‘comprises a heel
in elevation, and partly‘ broken-away,._the parts
being enlarged,
holding means‘ consisting ‘of "the" ‘following ~ de
the right foot support is .shown;zinstheia forward
position, and. therear‘foot' support iinthe rear
edge and the rearedgean upwardly extending
scribed parts:
' l0 designatesa, plate'having e. ?at portion on
Fig. 5is a section on the line 5-—5fof Fig. 4.
Fig. 6 is a planv view 101513116 exercisergwith-gthe 40 which the bottom of the heel rests, said plate
having a rounded rear end, and having at one side
crank means in the horizontal position/inwhich
flange H. The right plate ID has the ?ange H
-a,ttits right .edgeyzand the left :plate H! has the
Fig. 7 is ‘an'enlarged left side- elevation of~a 45 :?ange H at its left edge, Figs. land 6.
I‘ Eachheel holding means-has a Uvshaped wire
portion of the exerciser,‘ showing‘the left‘heel .
member one arm l2 extending vtransversely under
and toe holding means in the forward-position,
and fastened to the lower side of the plate l0‘, the
the motor “and the right heel and toe holding
ward position.
'
'
transverse portion of the, U vshaped member, desig
means omitted, andparts broken away.
nated by l3, extending upwardly and rearwardly
Fig. 8‘ is an enlarged’ front elevation of the left 50 at an angle, the other arm 14 of. the‘ U shaped
toe holding means'and some of the'parts at .the
member being'located approximately ‘in a ver
rear thereof.
' '
'tic‘al plane atv therear end ‘of the platef'l ll. “
Fig. 9 is alongitudinaljsectionlof the. hub, with '
"The ‘end portions 'ofthe arms l2 and Hlare
the inner ends of the two alined' cranks shown 55 jthreadedand. have . mountedtupon, them respec
'fastenedtherein.
'
"
'
'
2,413,351
4
tively two nuts I5 which bear against the two 7
lower end of a vertical portion 3I, the upper end
of which is threaded.
On the horizontal portion 30 is mounted a soft
rubber sleeve 32 for supporting the toes of the
foot to be applied thereto.
A transverse bar 33 has eyes, one at each end,
eyes I6 of a wire link I1, which eyes I6 are re
movably mounted upon the arms I2 and I4 re
spectively.
The transverse upwardly extending portion I3
is at the right of the right plate I0, and at the
left of the left plate I0.
The link I ‘I is at the left side of the right plate
I U, and at the right side of the left plate Ill.
The inclined portions. I3 of the ‘two U shaped 10
members embrace the outer sides of the feet
above the heels thereof, and the two links II
respectively embrace the inner sides of the feet
above the heels. The two heels resting on the
heel plates III may thus be held tightly clamped. 15
Each plate In is rigidly fastened to the upper
end of av downwardly extending pivot pin I8;
forming therewith part of a heel holding member.
Means are provided for supporting the heel
holding means on the oblique portions 6‘ of the
20
‘crank means, which means, as ‘shown, consist of
two collars I9 respectively pivotally‘ mounted on
the oblique portions 6 at ‘opposite sides of and
spaced from the hub 4, Figs. 2, 4, 5 and 8. Pins
20, Fig. 2, extending through the portions 6, one
through which respectively extend the threaded
upper end portions 28 and 3|. Two nuts 34 re
spectively mounted on said threaded end portions
28 andz3I bear against the upper side of the bar
33. On the bar 33 is a soft rubber sleeve 35 for
' embracing the upper sides of the toes of the foot
supported by the sleeve 32.
- Each bar 25 has extending from it transversely
inwardly between the member 23 and the bar
26-41, a horizontal bar 36 to which are attached
the rear ends‘of two coiled springs 31 and 38 the
forward ends of which are respectively attached
to the vertical portion 28 and to the horizontal
portion 30. The tension of the springs 31 and
38 is such as to tend to normally swing the ver
tical portions 28 and 3| ‘ rearwardly. -
I
-
.
To limit the scope of the ‘lateral and upwardly
and downwardly swinging of the two heel holding
at each side of each collar I9, hold the collars 25 means, two tongues 39 are respectively fastened
from endwise movement on the oblique portions
6, while permitting said portions 6 to rotate and
the collars I9 to swing thereon. As shown in
Figs. 4 and 5, each collar has in it at the rear of
at their rear ends to the pivot pins I8, and ex
tend forwardly respectively under the two bar
portions 2'! and between the upwardly extending
arms of two U shaped members 40 respectively
the portion 6, a circular hole 2I extending down 30 fastened at the upper ends of their arms to the
under sides respectively of the two bar portions
wardly from the upper end of the collar to 'a
21, Figs. 2 and 8.
;
point below the portion 6, inwhich is pivoted the
Means
are
provided
for
continuously
rotating
lower reduced end portion of the pivot pin I8.
For holding the pivot pin I8 in the‘collar I9,
:and yet permit the pin to swing laterally a range
‘of about 90 degrees, the front side of the reduced
the hub 4 on its axis, which means, as shown,
35 consists of a worm wheel 4I, Figs. 1, 2, 3, 6 and 7,
rigidly mounted on the hub 4 between the ball
bearing casings 3, which worm wheel M is en
gaged and rotated by a horizontal rearwardly
extending worm 42 mounted upon the rear end
tion 6 extends, the front portion of the pin below 40 of the armature shaft 43 of an electric motor 44
the notch 22 being forward of the rear edge of
mounted on the base I.
,
the portion 6. As shown in Fig. 5, the notch 22
In
operation,
the
person
who
is
being
exercised
extends rearwardly far enough to permit of the
is seated behind the ‘apparatus with his heels
pivotal movement of the pivot pin. The hole 2I
resting respectively on the heel plates I 0, and
being closed at the bottom forms an oil container,
the two toe portions of his feet clamped between
for the lubrication of the pin, ‘and collar.v
the two pairs of rubber sleeves 32 and 35.. The
For supporting the toe holding means, two bar
nuts I5 are tightenedto cause the feet to be
supporting members 23 are pivotally mounted
tightly clamped above the heels by the'links I1
respectively on the two crank extensions 9, Figs.
and the portions I3 of the two U shaped members.
1, 2, 7 and 8. Each member 23, below the adja- Assuming that the motor 44 is operated to
cent extension 9 has extending through it for.
rotate the hub 4 in a clockwise direction, as
wardly and rearwardly ahole 24, shown as square
viewed from the right in Figs. 1, 2 and 6, the
in cross section, in which is longit'udinally'ad
oblique portions 6 and the extensions 9 of the
justably ?tted a bar 25, which extends forwardly
and is fastened in its adjusted position bya set " crank means will be revolved in circles around
the axis ‘of the hub 4, thus. carrying the two
screw 261_mounted in the outer side of the mem
pairs of heel holding means and two pairs ‘of toe
portion of the pin, at the rear ‘of the portion 6
has an arcuate notch 22 through which the por
ber 23 and intersecting the hole 24. ’
I .
The right and left toe holding means are re
spectively supported by the right and left bars
25. Each toe holding means, the left one of
which is shown in Fig. 8, enlarged, has a bar
provided at one end with a downwardly extend
ing portion 26 pivotally mounted in a vertical
hole through the adjacent bar 25 n‘ear the front
end of the latter. From the vertical portion 26
the bar extends inwardly transversely in a hori
zontal portion 27 from the other end of which
extends a vertical portion 28,’ threaded at its
upper end portion.
>
>
‘
On the vertical portion 28 is pivoted a sleeve
29 to one side of which is fastened one end ‘of a
holding means, together with the two feet sup
ported thereby, alternately forwardly and. back
wardly in circles. Theright‘ foot .will 'be moved
forwardly while the left ‘foot is‘ moved rear
wardly, and vice+versa.
.-
‘ 1
‘In a medial position, 'shown in‘ Figs. ,1 and 2,
the right foot is in its uppermost position, and
the left foot is in‘ its lowest position. As the
motor‘ 44 operates ‘to revolve thevhub 4 and the
feet supporting means carried thereby, the right
crank 6 and its extension 9 will move forwardly
and downwardly, [and thelleftlcrank 6 and its ex
tension 9 will move, rearwardly and upwardly
until the parts are in‘ the position shown in Fig.
6, in which the crank means 6 and the exten
sions 9 will be disposed horizontally‘.
f
bar having a horizontal ‘portion 30 extending
In‘the movement from the position shown in
transversely toward the adjacentibar 25,_the outer
end of said horizontal portion terminating at the 75 Figs. 1 and v2 to the ‘position shown inFig. 6,
the bars 25 will be swung to the right, thus shift
2,413,851
5
ing the toes of the feet to the right. Continued
revolution 90 degrees will bring the crank means
6-4-1 to the second transverse medial position,
in which the bars 25 will have been swung to
the left to the straight ahead position, shown
in Fig. 1, the right foot being at its lowermost
position, and the left foot at its uppermost posi
tion. Revolution another 90 degrees will move
the crank means 6-9 to the second horizontal
position, shown in Fig. 7, in which the bars 25
will have been swung to the extreme left
position.
Thus, during a complete revolution, the toe
portions of the feet will be swung laterally to and
fro, and the heels will be tilted to the right and
left, causing twisting of the feet between the
toes and heels; at the same time, the feet will
be swung upwardly and downwardly, thereby ex
said axis, a crank collar supported by and in
which said oblique portion of said crank is rotat
able, a heel holding means pivoted on said collar
to swing laterally, a bar supporting member sup
ported by and in which said crank extension is
rotatable, a bar extending forwardly from and
supported by said bar supporting member, toe
holding means forward of said heel holding
means and pivoted to said bar to swing forwardly
and backwardly, and means for limiting the
scope of lateral swinging of said heel holding
means on said collar and the range of tilting
of said collar on said crank.
3. In a foot and ankle exerciser, in combina
tion, a hub, means for rotating said hub on a
horizontal transverse axis, a crank fastened to
and extending transversely from one end of said
hub in a line oblique to and intersecting the axis
of said hub, and having at its outer end an ex
ercising the feet and the ankles as well as the
20 tension at an angle to said oblique line and to
muscles of the legs.
said axis, a heel holding means, means sup
If desired, the motor 44 may be operated to
porting said heel holding means so that it can
revolve the hub 4 counter-clockwise, as viewed
swing upwardly and downwardly and laterally
from the right in Fig. 1, thereby reversing the
movements imparted to the feet and ankles from
those described.
My invention may be modi?ed in many ways,
within the scope of the appended claims, with
out departing from the spirit of my invention.
on the, oblique portion of said crank when said
crank is revolved by said hub, a bar supporting
member supported by and in which said crank
extension is rotatable, a bar extending forwardly
from and supported by said bar supporting mem
ber, and toe holding means forward of said heel
What I claim is:
holding means and pivoted to said bar to swing
1. In a foot and ankle exerciser, in combina 30 forwardly and backwardly.
tion, a hub, means for rotating said hub on a
4. In a foot and ankle exerciser, in combina
horizontal transverse axis, a crank fastened to
tion, a hub, means for rotating said hub on a
and extending transversely from one end of said
horizontal transverse axis, a crank fastened to
hub in a line oblique to and intersecting the axis
and extending transversely from one end of said
of said hub, and having at its outer end an ex 35 hub in a line oblique to and intersecting the
tension at an angle to said oblique line and to
axis of said hub, and having at its outer end an
said axis, a crank collar supported by and in
extension at an angle to said oblique line and
which said oblique portion of said crank is rotat
to said axis, a heel holding means, means sup
able, a heel holding means pivoted on said collar
porting said heel holding means so that it can
40
to swing laterally, a bar supporting member sup
swing upwardly and downwardly and laterally
ported by and in which said crank extension is
on the oblique portion of said crank when said
rotatable, a bar extending forwardly from and
crank is revolved by said hub, a bar supporting
supported by said bar supporting member, and
member supported by and in which said crank
toe holding means forward of said heel holding
extension is rotatable, a bar extending forwardly
means and pivoted to said bar to swing forwardly
from and supported by said bar supporting mem
and backwardly.
ber, toe holding means forward of said heel
2. In a foot and ankle exerciser, in combina
holding means and pivoted to said bar to swing
tion, a hub, means for rotating said hub on a
forwardly and backwardly, and means for limit
horizontal transverse axis, a crank fastened to
ing the scope of lateral and upwardly and down
V
and extending transversely from one end of said
wardly swinging of said heel holding means.
hub in a line oblique to and intersecting the axis
of said hub, and having at its outer end an ex
LLOYD D. HERRICK.
tension at an angle to said oblique line and to
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