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Патент USA US2406344

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Aug. 27, 1946.
v
G. BERGFORS
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2,406,344`
EXERCISING MACHINE '
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Filed April 24, 1942
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BY
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ATTORNEYS
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2,406,344
Patented Aug. 27, 1946
vUNITED STATES PATENT OFFICE `
EXERCISING MACHINE
Gordon Bergfors, Yonkers, N. Y., assignor to
Exercycle Corporation, New York, N. Y.„a cor
poration of New York
Application April 24, 1942, Serial No. 440,294 ,
15 Claims.
(c1. 12s-33)
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apertures in the casing. Í For mounting the casing
upon the legs I0, I0', sheet metal cross braces are
The present invention is concerned with exer
-¿cising machines Yof the type that impart to the
enclosed within the casing, through which the
Yuser the combined motion of-a bicycle and a row
tube stock leg ends extend and to which they are
ing machine.y
It is among the objects of the invention to pro
vide a machine of the above type in 4whichthe
user is fiXedly seated and the combined pedallîng
and arm-stretching and retracting and trunk
movement of the user are effected in rhythmic
manner, passively by'the driving action of an 10
Welded. kThe cross-brace I5 at the forward end
of the casing preferably lforms the frontY wall
thereof, to which the side walls I6 of the casing
are welded at I 'I. The brace has wings I8'extend
ing along the side walls of the casing and inturned
flanges I9, through which theextremities of the
tube legs I3 extend and to which they are welded
electricmotor incorporated inthe mechanism,
vor if desired, actively without the resort to the
vat 20.
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The cross brace ‘2l `near the rear of the case
comprises` a sheetmetal structure havingra bot
Another object is to provide a mechanism'of the
above type involving a minimum number of 15 tom plate 22, upstanding wings 23 extending
«across the casing,y having outturned end ñanges
y»rugged moving parts, and devoidof any springs,
motor.
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r241 and downturned bottom flanges 25 welded ‘or ~
andthe operative mechanism of whichis enclosed
‘and concealed and not apt to injure theguser.
Another object is to provide a mechanismof the ,
above type by which the handle movement is per- .
formed without jolts or sudden changes of direc
tion, but is retarded near the extremity of' 'each
stroke thereof for gentle, yet effective exercise. ‘
`otherwise attached to the inner walls» of the-cas
ing-C. 'I'he horizontally extending upper endsy I4
`of therrearlegs I0’ extend-through aperturesZB
5in» the end wall of'the casing and through` cor
' responding apertures 21 in the` wings 23 of the
Vcross-brace 2| at' which they are welded in place.
, The casing C-is madeof two pieces,¿including
In the accompanying drawings in which is
the box member already describedwhich -has 1an
inturned rim 28 somewhat above the tubular sup
vport rods I3, I4 and a cover piece C'. >AThat cover
piece is provided at its forward and rear ends re
shown one or more of various possible embodi- -
ments of the several features of the invention,
Fig. l is a perspective view of the machine,v
Fig. '2 is a View thereof in longitudinalwcross
section and on a larger scale with parts- broken
~ away,
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spectively with unitary foot-pieces 29 and `.'«III ad
30 jacent the respective front and rear walls >of the
casing box. The foot pieces haveY curved bearing
Fig. 3 is a view of the gear box with the cover
removed and taken on` line 3-3 of Fig. 4, -
' surfaces which rest upon the upper convexities'of
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the horizontal support legends I3, I4, the `forward
Fig. 4 is a View in _transverse cross-section taken
on line 4-4 of Fig. 2,
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yfoot piecesv 29 vintervening between the front of
the casingand the liianges ¿I9 of the frontubra'ce
member and the rear footpieces- 39 intervening
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Fig. 5 is a View in transverse crossfsection
taken on line 5-5 of Fig. 2-,
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between the rear walland the cross brace 2l. '
Fig. 6 is a sectional detatil view taken on line
To secure the-cover C' of the casing in'place,
corresponding cross‘channel'bars 32 which `have
40 notches 33 for the. corresponding tubularï leg
‘I-l of Fig. 2,
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members vare lodged thereunder, and bolts- ‘34
Fig. 8 is a perspective view on a larger scale
through said-channel bar and the respective foot
showing one of the cross-braces and motor suD
pieces 29, 39 clamp the casing cover piece -C’
‘ port, and '
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against said tubular supports. The cover is de
Fig.` 9 is a transverse sectional view‘taken‘on
45 sirably reinforced by corrugations 35 and its `lower
. line 9-9 of Fig. 2. .
rim vis telescoped slightly Within the rimf28 of the
Referring now'to the drawings, the exercising
box portion of the casing,l so that the casing ,ap
-machine comprises’a' pair of front'legs Il! made
6-6 of Fig. 2, '
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Fig.. '1 is a sectional detail view taken on line
pears to be completely closed.
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up of hollow 'tubing telescoped into foot-pieces' I I
The casing mounts a, seai-l 36 inthe character
connected by'a cross brace bar I2‘ and a like'pair
of rear legs' Ill’. The legs'in combination with a` 50 of a bicycle seat, theoblique rod -support '31 yof
which‘ extends into a corresponding neck 38,*,un‘i
.casing C whichfinterven'es therebetween and is
taryk with the `cover piece C’ ofthe casing-and
carried thereby make up a frame structure. vFor
isr adjustably and frictionally affixed thereingby
this purpose, the upper ends of the tube stock legs
`a cross bolt» 39. The frame‘also carriesva handle
extend horizontally as at I3 and I4 respectively,
.in parallel aligned pairs through corresponding
55
¿member 4l!> of the type’used>` ongi‘iicycles,` the
2,406,344
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standard 4| of which is clamped by a cross bolt
backward by power operation.
42 into a sleeve carrier 43 pivoted at 44 in the `
gear reduction of spur gears 50 and 5l is’two to
one, so that the handle bar will perform a com
plete stroke in one direction, forward or back
ward, for each complete turn of the pedal cranks.
It will be seen that in the rotary movement of
upperland forward end of the cover piece C', for
the back and forth movement about its pivot
by action presently to be described.
For convenience of construction and neatness
~ of appearance` .the ,handle support bar. sleeve 4,3
has an outwardly curved front wall> 53 ¿unitary
the ,short `,crank 51, the major stroke of handle
`movement Whether forward .or backward, will
occur rapidly during the `substantially upward
with and at the lower end of said sleeve, and
connected tothe sleeve `by unitary wings 54 Lof
arcuate contour. The curved enlargement “55
thus formed extends with small „clearance
or downward movement of the crank arm. The
`displacement of the handle member will be rela
Ltively slow at the ends of its stroke, duringthe
substantially horizontal movement of the outer
through a corresponding slot 56 in„the upper wa
' of the casing.
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Desirably, th'e
'.:end tof :the Y*crank zarm.
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Near the front and lower par‘t of the casing
are a pair of bicycle pedals 45 extending from
It follows that in the
.continuous .operation of the pedals, the oscilla-l
tory or rocking movement of the handle will
opposi-te sides of the casingYfand-fañixed ‘toA an
occur `Without 'jolt or shock to the user.
axle 46 transversely of the casing.
stroke begins and ends gently, but during the
.
The pedals 45 and the pivoted handle 4I`--4`3
Each
are interconnected by *a transmission for mov
main ‘length of the stroke the tension or com
pression upon the extended arms of the user is
Íingîtlr'e ulatter 'back and forth in ‘the Joperation of
"vigorous, with corresponding stress ‘upon -the ~
"the’pe'd'als “That `transmission is ï'largelyfcon
"tainediin agear'boxV 41 Lwithintheca'sing `"The
>gea‘r‘box is Afirm-ly c‘larnpe'dïj'in’Í vplace ‘between the
'side walls >of casi-ng C ìby ymeans 4`v'of 'screws «48
muscles-of vthe =arms','ibaok 'and abdomen 'in fthe
enforced ¿bending-movement -of `lthe ‘îtrunk, `rim
posed by the movement ofthe handle Sbar.' The
handle »bar performs practically-a harmonic-1mo
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kfextem‘ììng *through ~sleeves «'49 ~@retained -under
«compression ‘between ¿the respective casing Vand
tion. This action, coupled with ïthe continual
motor operation ~of Tt'heibicy'cle'pedals,V imparts
gear 1‘box- side walls, Í‘and ' threaded into ithe gear
all of the advantages of :muscular‘actionderived Y,
ïb‘ox casting. rIp’he ftransmissionfincludes »algear
-'both inthe oper-ations of bi'cycling'andfofrowing.
The’ simplicity vofthe 4'device willfibe' manifest.
'It »Wil-l'ïbeseenfthat .ish'e 'few moving »partslare‘kall
enclosedin the casing îC,"including everyilink and
moving bearing, so that in operation, only ¿the
v’50 keyed to L'the pedal- axle ~"4B_ 'and f meshing «with
A'a "largerspurfgear Ar5"|-‘ keyed ~'to `counter-'shaft 52;
Countershaft 52 in the gear box has a short
’crank `arm f51' ïkeyed'ßto ~the outer Á'exposed 'lend
"'theredf. "Ther crank Iarfnn» iisr ‘connected 7with lre
- vspeci," tothe handle suppo?ts'leevelllßvlby .means
` _ pedals and ther handle `support ïrbar -appear. to
move and the movement o'fsaidïbar oc'cursï about
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ra x'bearing vconcealed -»in ¿casi-ng `C. '- ' vThe construc
tion yvvhenfonceflubricated,:operateswithout noise '
or shock. » Itiiis ¿rugged andïrhas vno= spring-sier
other'breakable parts.
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In 'ïthe motor driven embodiment, `action lisîim
parted i Sto ïthe ‘ muscles` :Without Laîñirmative fe?fort
»'«with ¿a ,unitary 'bearing #eye fSD' interposed ibe
onfthe part of'the'user, so that fthe full'measure
Y of exercise -i-s :obtained 'without strain upon‘t-he
heartf Moreover, fthe fixed 'seat îlends stability
to Ythe lconstruction ßthat rendersiits use safe :and
comfortable even> ¿to .elderly lor ltimo'rous '.persons.
Theimachin'efcouldìbe nsed‘without the electric
lmotor, `¿or 'without closing"they ¿switch ïthereo‘f, to '
Vvcompel -.the vuser 'to ido: afl'ìrmative-‘work, and Lthe Y
«of the invention fromiits'broaderaspectíitlispre» . ;
ïferred toprovideia motor drivenapparatus. To
this `end 'a ï‘ifractional ‘horse-'power' lelectric ‘motor
M :of îfrcin 5% - îto
operation of the pedals and handle bars gives-'ef
Ifective exerciselot activesratherrthanepass'iveítype.
A_s many changes »couldribe :made'îini: the> yabove
2P. fis «'desirably >:mounted
'-und'enthe :casing “.»C fin: a', :corresponding :niche ’62
embodiments of this invention -¿could ‘rbe ¿made
"without.'departing’tfrom the‘vscope aof'îthe claims,
it is intended that allnnatter -contained .inith‘e
f vabove description, or shown: 'in-the; accompanying
drawings, shall be interpreted as illustrativeand
noít in“a’limitingsens'e.v
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Having thus described my invention, lwhat `I
>claim` as :new and 'desireftoisecuresby LettersîPat
v‘entofzthe UnitedStates-is:
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1. An exercising machine, comprisingfa frame ,
'.Theioperation tproceeds substantially fas-"fól- y
alows: "fll’he‘ruser,> seated' upon the ‘ seat >36 `>with his
-?eet’ ~in " the 5 medals-‘45; throws' ¿the rswitch "and
places his h'ands onîthehazidleîbarßûg»’ The mo
tor `M .through‘îthé worm 65 ~andivvorrn‘Wheel l66
idriv'esîthe axlert'46 VfandV with it 'rth'e ‘pedals `45.
¿Through lfthek'spur gearsV 50 fand`î5`l, power is
"transmitted ‘from axle 'T4`S"`to 'operate the'handle
ëmeniberlll. `Th`is_ operation occursl'by >rotation
«cf »the crank farmï "51 ¿whichby ¿way of linkfy 58
--causes the 'handle -bar to loscillate forwardand
xlnavingea >seat mounted thereon, 4¿a handle #mem
ber, a carrying bar therefor pivotedïtogsaid-frame,
pedals, :anv axle îcarrying :the-same, andra 'ttrans
‘mission b‘etween'zsaid pedal îaxlel‘andr'said handlev
`'carrying Vzbar, `saidîtransn‘lissi'onJin’cluding a 1in-k Y
‘~ pivoted to isaid i bar: near: Athe "pivot mount :thereof
fand yazsh‘ort crank forîthe Iother.endfof.«'said flink
operated ‘from said axlef=andfimparting isubstan- `
"tially`h‘ar1non'ic motion to saidhandle member.
2. An‘f'exercisingsmachine, comprising ajframe,
includingî'a casing, agseatr‘rafñxed ¿toïsaid-jcasing, v
a r‘handle 'member -and a Jcarrying `)bar Atherefor
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vpivotedV nearfthe lower end thereof Aiso-"_saidïfcas
ing, a pair of pedals -having an axle through said
È' anda handle bar pivoted tosaid casing and Os
- cillated from'the reduction gearing.
, casing, a gear box from whichV said axlepro
trudes,. a crank exposed on said gear box, a gear
8. An exercising machine comprising a support
frame, including a casing having a base portion
îreduction 'in said box intervening vbetween said
` and a cover piece ail‘ìxedthereto, aimotor under
axle and said crank, and a transmission link’be
tween said crank and said carrying bar` and hav-
portion of said casingy a seat aliixed to said cover
f ing a pivotal connection with respect to the lat
.ter near the pivot mount of the same.
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. 3. An .exercising machine, comprising a frame'
including a. casing, a seat añîxed to said casing.
ja handle member having a carryingbar pivoted
near its lower end to’said casing, pedals laterally
fof- said casing having an axle transversely
through said casing, an electric motor carried
said easing,Í pedals extending through the'base
piece, a handle bar pivotedto‘said cover piece,
a transmission in said casing including reduc
tion/gearing driven by said motor, Vsaid reduction
gearing driving said pedals and including'means
for causing said handle bar t'o oscillate about its
' pivot.
9. An exercising machine comprising a support
frame including a leg structure of tube stock,
extending horizontally at the upper part thereof,
a support casing for the operative parts of the
mechanism, said casing being mounted upon the
horizontal portions of said legs and rigidlyise
by said casing, a gear box enclosing a worm driven
from said motor, a worm wheel meshing there
with, a gear reduction in said gear box, a crank
arm driven from and. exposed at the outside of
said gear box and within said casing, and a link 20 cured thereto, pedals extending laterally ofisaid
casing, a worm wheel moving with said pedals,
connecting Isaid crank to the base end oi said
a worm meshing therewith, a spur gear trans
pivoted carrying bar.
mission operated from said worm Wheel, a handle
4. An exercising machine comprising a casing
having support legs protruding therefrom, an
electric motor 4under said casing, a gear box
within said casing, an axle transversely of said
gear box having pedals exposed a-t the outer
ends thereof and exposed laterally of said cas
ing, a transmission shaft between said motor and
said axle, a countershaft in said gear box, having 30
a short crank arm exposed at one side thereof,
a seat aiiîxed to said casing, a handle member
member having a support bar pivoted to said
casing, a crank upon the output end of said spur
gear transmission and a link connecting said
crank to said support bar for pivotal backward
and forward movement of said handle member,
while the pedals are being operated.'
10. An exercising machine of the type com
prising support legs of tube stock, operating struc
ture carried thereby, including a pair of pedals
extending from the sides thereof, a ñxed seat and
having a carrying bar pivoted to said casing and
a handle member having a pivoted support bar,
a link for imparting 'substantially harmonic
movement to said handle member, said link ccn 35 a closed casing structure supporting said pedal
members, said seat and said handle support bar,
necting said crank to said support bar at a point
the ends of said tube stock legs extending into
thereof near the pivot mount thereof.
said casing and the latter being clamped with
5. An exercising machine comprising a casing
respect thereto, said casing having enclosed there- - '
having front and rear legs, a motor at the lower
rear part of the casing, a gear box in front of 40 in transmission gearing interlinking the pedal
cranks with the pivoted handle support bar.
said motor, a seat rising from the rear end of the
11. The combination recited in claim 10 in '
upper part 0f said casing, a handle member hav
which an electric motor is mounted under the
ing a support bar pivoted in said casing, a pair
casing and drives the transmission to both said
of pedals having an axle through Isaid gear box
pedal cranks and said handle bar.
and said casing, a spur gear reduction within
12. In an exercising machine, front legs and
said box operated in unison with saidV axle, a short
rear legs, -a combined transmission and support
crank on the output end of said reduction and a
casing comprising a lower box, metal cross-pieces
link pivotally mounted upon said crank and piv
near the ends thereof, said legs having horizontal
oted to said support bar, near the pivot mount of
50 upper portions extending across and through said
the latter.
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metal _cross-pieces and añixed thereto, said cas
6. An exercising machine comprising a frame,
ing having a cover-piece resting upon said hori
including a casing having a gear box therein, en
zontal portions and bolted with respect to said
closing Speed reducing gearing, a motor upon said
legs, a seat mounted upon said cover piece, a
frame and driving .said gearing, an axle through
handle support bar extending into and pivoted
said box and said casing and driven by said mo- , near its lower end to the upper part of said cover
tor, pedal-S on the ends of said axle, a counter
piece, pedal cranks extending from the sides of
shaft through said box and having a crank ex
said «box and a transmission within said box
posed on the end thereof and within said casing,
interlinking> said pedals and said pivoted handle
a iixed seat upon said frame, a handle member
support bar.
having a support baz` pivoted to said casing and 60
13. In an exercising machine, front legs and
a link connecting said crank to a portion of said
rear legs, a combined transmission and support
support bar contiguous to the pivot support of
casing comprising a lower box, metal cross-pieces
the latter, said shafts and axle being enclosed
near the ends thereof, said legs having horizon
within said casing, said support bar having a hol
tal upper portions extending across and through
low enlargement at the lower end thereof ac
said metal cross-pieces and affixed thereto, a
commodating the upper pivoted end of said link.
complementary cover-piece resting upon said
'7. An exercising machine, comprising a sup
horizontal portions and bolted with respect there
port frame including a casing, a motor under
said casing, a transmission box in said casing in
to, a seat mounted upon said cover piece, a handle
support bar extending into and pivoted near its
cluding reduction gearing driven by said motor
4, lower end to the upper part of said cover piece,
and driven members actuated therefrom and en
pedal cranks protruding from then sides of said
gaged by parts of the body ofthe user, said
driven members including pedals laterally of said
casing and operated from said transmission box
box and a transmission within said box inter
linking said pedals and said pivoted handle sup
port bar, one of said cross-pieces having an
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-electricmotor lfañixed :thereunder and rlodged in
a corresponding î-n-iche -in'ethe -lower part .of ìsaid
‘box rand a ,LWorm-drìvefinsaid boxconnectinggsaid
:motor to thettransmissicn.
14. in l»an »exercising machine, ~a casing, >„legs .
supporting the isame, aseat supported upon said
-casing rand a handle member `having asupport
ibarjpivoted .near îthe lower VVend lthereof to `the
rupper part `o'f >said casing,I a¢gear box within said
:casingßspaoed fromthe side- walls thereoffspacer
ysl'eeJ/ìes vin'i'ervening»betweenithe sidesof said cas»
ing ¿and said box, Jscrews through `vsaid ,fspacer
sleeves afñxing said box in said easing, saidßgear
viloxliaving za worm wheel therein, ïsaid V worm
u.wheelehem/Ting anfaxle'zextending»through the side
‘walls of- said f casing, Y pedals :u_pon -the #ends -of „said
-' .ax1.e,.saidigearîboxhaving a Worm therein Amesh- ’
~ing-¿With »said Worm Wheel, 'said gear :box in~
k',cludinga _'pairnf spur gears »driven .from :said
worm WheeL-a crankarm „on-the »output end of 20
vlsaid„gear `box,.anc1 a ,link connecting said. crank
armfto said „handle barsu-pport :at <@peint near
the pivot mount thereof.
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15. An exercising machine comprising apair
-of front legs >and a pair ofrear‘legsof tubes‘toßk,
theupper portions of -said .legs „extending 'hori
zontally, a transmission casing .embracing .the
horizontal `parts :of said legs, vsaid casinginclud
ing a box member havingtransverse metaltîsurp
ports vnear the front and .rear thereof _through
which the ends of »said legs extend andwith're
spect to which .they v,are-'afûxe,d, ,said box mem
ber havingva cover piece, V~the lower‘rimfoif which
has .foot pieces `resting upon -the „horizontal por
tionsof Vsaidlegs, _and meanscl‘amping saidcover
ypiece in place, .said .means V`comprising _channel
bar cross .members «under the respective leg spor»
tions andscrews through thefQot pieces clamp
ing the latter againstthe legvportions.
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>GORDON BERGFORS.l
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