US1793996A - Exercising machine - Google Patents

Description

Feb. 24, 1931. G, H CARLSON 1,793,996

l EXERCISING MACHINE Filed OCT.. 10.1928

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Patented Feb. 24, 1931 UNITED STATES PATENT OFFICE H. CARLSON, OF ROCKFORD, ILLINOIS, ASSIGNOR 'IO ELSTROM, CARLSON & C0.,

OF ROCIIFGD, ITLINOIES; It CORPORATION F ILLINOIS EXERCISING MACHINE 'Application lcd October 10, 1928. Serial Ilo. 311,561.`

muscles of the human body by suitable means such a belt attached to the machine and held in contact `with the muscles to be exercised. i.

t 1 1 .2 .L1 general ooJ-ector ene invention is to proembodying means for varying both the speed and amplitude of vibration, which means are n operable by manual `control members entending into convenient reach of the operator while in a standing position.

Another object `of the invention is to provide an improved machine of this character which is extremely rugged and positive in its operation. p i

Another object is .to provide such machine embodying novel means whereby the user may vary theoscillatory stroke of the machine by very fine graduations. Another object is to provide an exercising machine having novel and improved means for starting and stopping the oscillatory motion thereof. .y i

Another object is to `provide a new and improved device for transforming the constant rotary motionof. the driver into an oscillatory motion `of the vibrating element.

A further object is to combine in aV simple 4unit themeans for transformingrotary moy tion (into oscillatory motion and the means 50 Fig. llis a fragmental side elevationlol" duce an improved machine or this character p for gradually varying the oscillatory stroke the im Figi.l i p Fig. is a fragmental sectional view taken along the line 5 5 of Fig. 2.

llhile the invention is susceptible of various modifications and alternative constructions, l have shown in thedrawings and will `herein describe in detail the preferred embodiment, but it is to be understood that l do not thereby intend to limit the invention tothe specific form disclosechbut intend to cover all modil'ications and alternative con structionstalling .within thespirit and scope of the invention expressed in the appended claims. q

` For the `purposes of this disclosure the inventionis embodied in an exercising machine `having an upright standard 10 supported on a `base 10, the standard preferably being tapered and of circular cross section, thus serving to support andl house a vertical shaft 11 which is rotatably mounted within the stand- `ard 10 in a bearing 12 at the top of the standard. The upper end oit the shaft projects out of the top of the standard and has a cross bar 13 mounted thereon for movement thereby. rlhus an oscillatory motion of the shaft 11 will move the ends of the cross bar 13 back and forth and a, pair of hooks 14 are provided at the ends of the bar 13 to receive a suitable applicator such as a strap l5 through `which this movement oi the cross bar may be utilized for exercising the muscles ofl the human body. As shown in ljl ig. 2 the platform 10 entends forwardly of the standard 10 and may if desired serve as a platformuponwhich the user may stand so as to render the device more stable. 0

For the purpose of effecting in oscillatory movement of the cross bar 13 the embodiment ot theinvention herein illustrated is provided with "an electric motor 16 adjustably mounted upon the base 10a rearwardly ofthe standard 10, and its motion is communicated to the vertical shaft 11 by a suitable driving connection therebetween.` y

i In the present instance this driving connection includes a horizontal shaft 17 rotatably supported above the motor 16 and havingone end adjacentthe lower end of the chine as viewed from the line 4 4 of" Y ,horizontally spaced vertiealmembers 32 connected by an upperf'crossmeinber 33 in which foal standard 10. The end-:ofthe armi-30 Yis yvertical shaft 11. For purposes ofeconomy Vand neatness the shaftV 1,7 is preferably supjported and housed by a tubular casing. or

housing 1S having one end opening into thev bottom ofthe standard and has a .Wall 21 closing its outer end' and arranged to rotat` ably support one end ofthe shaft 17 in fixed.v`

axial positionthrough the medium of aball bearingn 22. Aprojects into an axial bore 23 formed in a rotatable hub member 24 Which is positionedv vWithin the casing` 18 and Whichhub in the present embodiment Aserves to support the end of the shaftlZ upon which it is mounted. To this end the hub 2l'is rotatably supported by a ball bearing 25 havingA an inner race 26 secured tothe hub byja nut 27 andan outer race'23 fittingyivithin and. supported by the Walls of the casing `18. V

The horizontal-shaft 17 and the hub 24 are Aspliiled togetheras at 29 so tliat'the hub Willfbe .rotated by the shaft and means is lprovided connecting the hub 24 to the ver'- vrtical shaftll operable` upon rotation of the Y shaft 17 to .impart anl oscillatory` motion to the-vertical shaft 11. Thisfmeaiis preferably comprises kanA arm 30 .connected at one lend to the vertical shaft ll'for'pivotal'lmovement about a horizontal axis and having its other 'endengaging the hub V24; eccentrically of its axisof rotation vso as to be moved yin a circle by rotation ofthe liubl y i For the` purpose of pivo'tallyy connecting the-.arm 3Otov the verticalshaft 11 a yoke 31 1-) is preferably provided having two the'loiverend of the shaftll `is non-rotatably secured. A lower crossmember 34 has a stub shaft 35y thereinV whichl is rotatable in a bearing 36 mounted inl a cross'bar 37in the vertif' positioned between" thetivo Vertical members 32' andi'a'lwrist pin'` 38' extends `through suitable horizontal boresf'fo-riiied in'. tlieVtliree yparts.

Thus-'When the free end of lthe v30 is `inoved'i'n a circle dueto its eccentric engagementwith the hub 24,' the horizontal Com- I ponentsof the vcircular motioii'of the free end ofth'e arm p30 'Will betransinitted to thefvereen han ii ami'wiiiesclusa-iii@ Shari-.tack

-aiidfor-tli about its vertical axis (as shovvn inl Fio3l) "-iiiy anv amount which is dependent 'fupeirthe eecentrio'ity-of the point at whichV vilie varmO engagestherotating hub '24'.

f n14 A itisZ d sirable hat motion'fand ferthisreason means is' provided the present embodiment. whereby the yec- 30 at any point therealong.

prereiably inthe. form of an angular bore' The other end of the shaft 17V n y K l I in ,frontof the machine. iii-nes of the-character hereinshovvn, Y

` .i variable'Y oscillatory centricity of the point of engagement of the arm 30 and the hub 24 may easily be varied Within certain. limits duringV the operation of the device. To this end a guide is formed on the hub positioned at kan angle to the axis of rotation thereof and adapted to be operatively engaged by the end of the arm rThis guide is 39 entering into thehub 2l from a point on one end adgacent its axisvof rotationand' extending aiigularly into the hub toward .the

other end of the hub and toward the periphery thereof. The arm 30 extends into the bore 39 and to permit relative rotative movement theiebe'tWe'en a'ball.-v bearing-#l0 is secured at the end of the arm 30 to engage the sides of the bore 39.

For the purpose of varying thepoint ofengage'inent ofthe arm 30 With the bore 39 the hub 2i is slidable longitudinally of the shaftvl? andthe outer, race 23 of the bearing 25 is slidable along` the Walls of the casing.

i Thus When the hub is intheV position shown' lll/Then the hub 2-/i'is moved relatively to the. wrm 30 the angular relation of the bore 39l nd'tlie arm 30 is Varied and .to take care of his variation, the outer race of thebearing 'D has a'spherically shaped outer surface which engages the bore 39 through a Vsleeve l1 Y f which has a correspondingly shapedinterior surface. v Y -Y Means Vis provided for moving the hub 24 gradually bet-Ween the two positions fshoivn in Fig. 2 during the Aoperation of the device and this meansV preferably comprises alever 42 2 and 5) liorizontalLypivoted in a--' housingl 43 on the horizontal'casing13 and engaging an annular groove lll `formed in the -liub 24 so thatv movement ofthe lever @about its pivot ivillseive to move the 24. 'along the shaft 17V.' To maintain thehub'2/lin-'ad- Justed position7 by means of springs e5 'into frictional engageineiit Witlionetvall of the housing 43.

`forwardly of the machine-along one side-.of

the Vsupport lO'so-tliat it may-easily be reached by a person in a standing The connect-ion vbetween the' motor 16 and the' shaft V17 preferably ,embodies means for iinpartingdifierent speeds tothe shaft 17: and for starting` and stoppin-@the rotary motion Va pressure plate 44a* isl pro-v. 'vided' Within the housing` i3 mounted onV two l The lever 42 .has .an operating handle 6()V ,integrally formed Vtherewith whichY extends position ice tudinally of its airis."

presentinstance comprisesa shaft l rotat- .ably and slidablyj supported near its ends by 4outside of the casirmv thereof during the continued operation of the motor. rifo thisV end. a pulley a@ is non rotatably seccired on the end of the shaft ""7 Le, i8 and a pair of pulleys l? and 48 are secured on the motor shaft i9 for rotation thereby. if-in endless belt 50 passes over the upper pulley a6 and beneath either thefpulley el? cred, `whereby he shaft 17 may be rotated. f

i The pulleys i7 and i8 areof different sizes so as to provide two different speeds of rotation for the shaft l? and to facilitate the selective engagement of these pulleys With the belt 50, the motor i6 is mouned so as to pern mit vertical movement and movement longilhis mounting in the a 111,(752 on the standard 10 and a bracket 53 on the base u. 4iiplate 54 is secured on the shaft 5l for rotaticntherewith and the motor 1G is fastened by suitable means to this plate 54 so that by a roclning,` movement of the shaft 5l the motor may be lift-ed out of engagement with the belt 50. Thus the Weight of the motor ser es to tighten thebelt duri-nqj operation and a handle 55 is fixed on the shaft 5l where- `bythe shaft 51 maybe roclred to engage or disengage the belt to start or stop the oscillation of thevertical shaft. The handle also extends upwardly so as to be within easy reach of an operator in a standing position. i

since ai@ Staa .n is andauern@ motor 1c `may `be shifted longitudinally While it is in for varying the speed of the de ice and for starting and stopping the device during the operation of the motor.

` It `Will also be apparent that the invention i provides nev,7 andimproved means for trans forming rotary motion to oscillatory motion,

which means is economical of construction and rugged in use.

I claim as my invention: l. An exercising machine having, in com- "bination, a housing, a driven shaft journaled therein having one end` adapted to support an applicator, a second housing opening into i said first Vhousingan'd disposed at anangle thereto, a driving shaftiin said second housing havmg'oneendgournaled 1n a Wall of said second housing, a hublmember. slidably splined on the other end of said driving shaft and rotatably and slidably engaging the sides oriven shaft for pivotal movement about an y axis perpendicular to the axis of said driven shaft, and means for sliding said hub member longitudinally of said driving' shaft and said second housing,` whereby to change the point of engagement of said arm with said bore.` y

2. ln a machine having a driven shaft to he oscillated, a driving; shaft at an angle thereto, adj ustablo means for connecting said driving; shaft with said driven shaft operating to convert rotaryimotion in said driving shaft to oscillatory motion in said driven shaft, said means includinga guide slidahly mounted on said driving shaft for rotation,therewith and disposed at an angle to the airis of said driving shaft, an arm,

agie said Ifluide to be moved in a circle by the rotary motion of said driving shaft, the other ond of said arm being pivotally con nected to said driven shaft to communicate oscillatory motion thereto, means `adapted to move said guide relatively to said arm to regulate the movement of said arm and so regulate the angle of oscillation of said. driven shaft.

8. An exercising' machine comprising, in combination, a frame, a shaft mounted for oscillatory movement in said frame, an `arm having one end connected to said shaft for pivotal movement about an airis perpendicular `to the axis of said shaft, said arm projjeoting' rearwardly from said shaft, means operable to move thc rear end of said arm in a circle, said means comprisingr a rotatable hub, angular guide means on said hub, means connecting theend of said arm to said angular guide 1neans,and means for moving said hub to vary the relative position of said huh and said arm. r

\ a; An exercising; machine having, in comybination, a shaft to beoscillated andto which anexercising device maybe attached, a rotatable driving shaft, and means for connecting said first shaft and said driving shaft to producesaid oscillating motion, said means includinp,` `a member splined to and movable axially upon said driving shaftfand having a guidevvayiivhose axis describes an angle With the `airis of said rotatable driving shaft,

1an ,arinha-ving means on one end adapted to i engage said :guidoivay and torotate therewith, and 'means on said rst shaft supporting the other end of said arm, such last memtioncd means permitting independent move ment ofsaid arm relatively to said first shaft ing a movable-exercising means'and d riving "meansthereforincluding a belt, the combiin a plane perpendicular to the plane of oscillation thereof.

'75. In an exercising inachine, the combination'of a shaft mounted for oscillatory movement, an arm Yhaving one end coikinectedltoI` said shaft for pivotal movement about an faixis extending transversely of said shaft,v

nation of a'lmotor having a shaft andL a plurality of'pulleys fixed thereon adapted tol engage and drive said belt, and means where-l bysaid motor may be moved' perpendicularly to andlongitudinally of its axis to selectively engage any one 4of said pulleys with said belt, said means including a rock shaft capable of rotary or longitudinal movement, and

' means eccentrically fixing said motor to said i dinal axis of said shaft to effect driving con,- `nections between said belt and any one of vmeans comprising a member having one end'l rock. shaft for movement therewith.

7. In a machine of the class described having a movable exercising means and driving means therefor vincluding a belt, the combi-V nation of a motor having a shaft, a plurality -ofpulleys onsaid shaft adapted to engage and drive said belt, and means whereby said pulleys may be adjustably moved in planes parallel or perpendicular to thel "longitusaid pulleys.

8. In -antexercising machine, thev combinati'on'of a'rotatable driving element, an osf cillatory driven element, and means connect-l` ing'said ,elements'operable to transform rotary motion of said vdriving element into oscillatory motionin said driven element, said pivotallyV connected to said driven element,

Y Vmeans Yon said driving'element engaging the other end ofsaid member to maintain said member with its axis at an .angle to the axis of rotation of saiddriving elein'entland operable to move saidend in kan orbital path,.said Y last mentioned means being .shiftable relatively tosaid driving `and driven' elements parallel to the axis of rotation vof said drivto said driven element.`

a rotarysdriving element, a part rotating with said element. and having thereon means when said driving element is rotated, andv means. for moving said part relativeto said driven element and said driving element to vary the relation of said'member to said inclinedmeans and thereby vary the angular relation between the axis off'said driving element Vand said member to control the sizeof theorbital path of the latter. Y Y

10. 1n an exercising machine, the combination of a rotary driving element, a member having oneend operatively,l connected to said driving element eccentrically, of the latter whereby rotation of saidr driving element will move said end of said member through an orbital path, an oscillatory driven elementpivotally connected'L to saidmember to receive motion therefronnfthe axis of such pivotal connection being perpendicular to the axis of oscillation of said driven element, and means slii'ftable with respect to said driving elementv and saiddriven element while said parts arev in motion arranged to vary the relationship of'said member to one of said elements and therebyvary the degree, of oscillation which said member imparts 1n testimony whereof, I have hereunto affixed my signature. f Y .l j

' 1 H. CARLSON.

.ing element during rotation thereof to varyl fthel angular relation of said axes. l "7.9.1In exercisingmachine, they combination of an oscillatory'driven'elemenn a pivotally mounted member connected tosaid Y element to effect movement thereof about the f 'axisof oscillation 'ofsaid element, said .mem-'1v c ber having'anidling movement aboutan axis n F perpendicular VV.to the first mentioned axis,

CERTIMCGATE 0F CURREGTION.

Patent No. 1,793,996. Granted February 24, 193i, to

GERGE H. CARLSON.

it is hereby certified that tho name of the assignee in tlm above numbered patent was erroneously written and printed as "Elstroin, Carlson 1 (10.", whereas said nome should have been Written and printed as Ekstrom, Carlson 8c Go., as shown by tito records of assignments in this office:

Page 3, time i4, lfor the misspelled word mo-uned" read mounted; and that the said Letters Patent should loo rood with these cotrections thorein that the same may conform to tho record of the case in the ioteiit ifice.

Signed and sealed this 7th day of April, A. D. i931.

lll. J. Moore, (Seal) Acting Commissioner of Patents.

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