US2512911A

US2512911A - Exerciser

Info

Publication number: US2512911A
Application number: US86490A
Authority: US
Inventors: Theodore S Benice
Original assignee: Individual
Current assignee: Individual
Priority date: 1949-04-09
Filing date: 1949-04-09
Publication date: 1950-06-27
Anticipated expiration: 1967-06-27

Description

June 27, 1950 'r. s. BENICE 2,512,911

EXERCISER Filed April 9, 1949 IN VEN TOR.

5 0025 .5: BEN/cs,

Patented June 27, i950 UNITED STATES PATENT OFFICE Claims.

ciser especially designed for simulating a rowing action. I

Some prior proposed exercisers of the rowing machine type usually were installed in a gymnasium where the exercising machine could be permanently fixed to a floor. These machines were usually rather large and bulky and unsuitable for use in a home. Other proposed exercisers which were purportedly designed for use me. home were bulky, heavy in weight, required a relatively large storage space, and in general were difficult to handle in a home where they could not be fixedly and permanently located. Generally, the prior proposed exercisers included a complex arrangement of ropes, a drum, and springs in which the parts were worn out in a relatively short time. Such exercisers were generally awkward and inconvenient to set up in a home for exercising.

The primary object of this invention is to design and provide an improved exerciser for simulating rowing action which is of simple, lightweight construction, is attractive in appearance, and is especially suitable for use in a home because of its ready portability and because it is capable of being easily stored in a minimum of space.

An object of this invention is to provide an improved exerciser for simulating rowing action whereby physical development is provided of the muscles in the legs, body and arms of the personusing the exerciser.

Another object of this invention is to design an improved exerciser of the rowingtype wherein the tensioning means may be adjusted for varying its tension or resistance given to the rowing action according to the desire of the person using the exerciser.

A further object of this invention is to design and provide an improved light-weight exerciser of rowing type which is of compact, simple construction, and is easy and inexpensive to manufacture.

This invention contemplates an exerciser of the type described above comprising a minimum of parts which are assembled in a novel and simple manner.

Generally speaking, this invention contemplates an exerciser for simulating rowing action wherein an elongated base is provided with spaced tracks for guiding a movable seat thereon, and a split housing is mounted centrally at one end of the base for supporting therewithin tensioning means, one endof which isinterlocked with a normally non-rotatable shaft and the other end of which may extend through an aperture in the housing for connection to a handle so that when a person using the exerciser draws or pulls the handle toward him the pulling action will be resisted by the tensioning means in the housing.

Other objects and advantages of this invention will be readily apparent from the following description of the drawings.

In the drawings:

Fig. 1 is a side elevation of an exerciser embodying this invention.

Fig. 2 is a top view of the exerciser shown in Fig. 1.

Fig. 3 is a perspective view of the housing and elements contained within the housing of the exerciser shown in Fig. 1, the rotatable drum and enclosed spiral sprin being shown in halfsection.

Referring particularly to, Fig. 1, the exerciser generally indicated at I for simulating rowing action comprises an elongated base 2, including spaced, longitudinally extending tracks 3 made of any suitable material such as a light-weight wood. Each track 3 is formed with a groove 4 in the top edge of the track. At one end the tracks may be joined by a transverse member 5 secured thereto in any suitable manner, as by screws, not shown. At the other end, each track 3 may be received within recesses formed by inwardly turned J-shaped spaced brackets 6, depending downwardly from the sides of a general rectangular-shaped base plate I.

A seat 8 is provided with rollers 9 adapted to be accommodated within the grooves 4 for providing rolling guided movement of the seat on the tracks 3.

The base plate I may be made of any suitable light-weight metal and is preferably cast of an aluminum alloy. At each side of plate "I and in the upper surface thereof may be formed heelreceiving recesses H] inclined downwardly for comfortably accommodating the heel of a, foot of the person using the exerciser. In alignment with each recess ID is an upstanding pedestal ll carrying inclined heel and toe plates l2 and I3 respectively, for supporting a foot of the person exercising.

The pedestals II are provided with a slot 14 formed beneath the toe plates I3 to accommodate an adjustable foot-retaining strap 15.

A housing I6 is secured to the base plate '5 between the pedestals l I and adjacent the end of the base plate I for accommodating the resistance or tension means used in this exerciser. The

housing I6 may be longitudinally separated into generally U-shaped housing portions I1 and I8 arranged to meet along a parting line parallel to the plane of the end walls. The housing portion I'I comprises an end wall I9 having a general semi-circular upper portion and having integrally formed therewith an inwardly directed marginal side flange 20. The flange 20 is provided with an outwardly offset portion 2| which is adapted to overlie the marginal edges of a similar inwardly directed side flange 22 formed on the other housing portion I8. The housing portion I8 includes an end wall 23 corresponding in shape to the end wall I9 of the housing portion II.

a shaft 68 having ends extending through aligned ports 59 formed in side walls of curved raised The inwardly directed

side flanges

29 and 22"" are cut away as at 24 and 25, respectively, adja-...

cent the top of the housing portions in order to provide an aperture 25 opening in the direc-- tion of the opposite end of the exerciser when the housing portions I1 and I8 are in assembly.

A normally non-rotatable stepped shaft, generally indicated at 21, is supported transversely of the housing It by jour'naling of one'end' 28 within a bore or trunnion 29 formed within a centrally thickened portion provided on the end wall I9. The other end 30 projects through journal port 3i centrally formed in the end wall 23 in alignment with the trunnion 29.

Adjacent end 28, the shaft 27 is provided with an enlarged shoulder 32 over which is sleeved for rotation thereon a hub 33 of a hollow'rotatable drum 34. An annular stop flange 35 extends radially outwardly at the inner extremity of shoulder 32 to affordpositioning of the drum 34 on the shoulder 32 by abutment as at 36.

The drum 34 is provided with an annular web 31 extending radially outwardly from the inner margin of the hub 33 for supporting a circumferential rim or flanged face 38. The face 38 defines with the web 37 a generally cup-shaped chamber 39 within which is contained a continuous spiral resilient tension spring 40; The spring 48 may be formed of any'suitable spring metal and is secured at its outer circumference to the rim 38 by a stud or pin 4|. The innermost turn of the spiral spring 40 encircles a reduced shoulder 42 formed on the shaft 21, and the inner end of the spring 49 may be secured to the shaft 21 by a stud 43 extending through an aligned port or opening theend of the spring. Means'for resisting rotation of the normally non-rotating shaft 2I'and 'foradjusting the tension of the spring 40 is provided by a ratchet wheel 44 h'aving'a' series of circumferen'tially arranged teeth 45. The ratchet wheel 44 isprovided with a central polygonal opening 46 which is slidable over a corresponding polygonal portion 4'! formed on the shaft 2'! between the enlarged shoulder 32 and the end 28. The teeth of the ratchet wheel are engageable by a manually actuatable gravity dog or pawl 48 pivotally mounted at 49 on the end wall I9. The pawl 48 is provided with an outwardly extending arm 50 which projects through a curved slot 5| in the end wall I9 for permitting manual release of the pawl with the ratchet wheel. f

The drum 34 is provided with upstanding, spaced radially, outwardly extendingfianges 52 formed on the flanged face 38 for containing and guiding belt means 53 wound around the drum 34 between the flanges 52. The belt means 53 may be made of any suitable strip-like material, preferably a web-like fabric having relatively portions 50 formed at the top of the housing portions Iland I8. The raised portions ac- "commodate the roller 58. The ends of shaft 68 .are threaded for engagement with cap nuts 69 outwardly of ports 59 for securing the housing portionsI'I and I8 in assembled relationship at the top thereof.

Forwardly directed'lugs 6I having a curved edge 62 are provided at each side of the aperture 26 for engaging and holding the handle 51 when the exerciser is not in use.

.The end 30 of the shaft 21 projects through the opening M and therebeyond for reception within a capstan .63 which is provided with diametrically opposite setscrews 64 which may be tightened for securing the capstan onthe shaft 21 and for restricting lateral play of the shaft 27 within the housing IS. The capstan 83 is also provided with diametrically opposite ports .65 into which an adjusting rod or pin may be inserted for rotating the shaft when the pawl 48 is released from engagementwiththe ratchet wheel in order to vary the tension of spring 48. When the shaft 21 is rotated by means of such a rod, while the handle 51 is in engagement with the lugs 6|, it is readily understood that since the ends of the spring are secured one to a normally non-rotating member andthe' other to a normally rotating member, the tension in the spring may be varied according to the desire of the person using theexerciser." f

Assembly of the housing and the elements therewithin is simplyjand' readily. performed as follows: th 'hous'ing'portiond'l may be secured to the base plate "I by means of bolt and nut assemblies extending through the base plate and gusset members'fi'l formed in eachgcornerof the housing portion. The drum 34 and the spring 49' contained within the chamber 39 may be assembled on theshaft 21, the ratchet wheel "44 may then bejpositioned -on the polygonal portion 41 and. the ratchet wheel, shaft, drum, and spring maybe inserted Within the housing portion I'I' so that the end 28 of the shaft is accommodated within the trunnion 29.1The gravity dog is lifted during this operation to permit its engagement with the teeth 45 of the ratchet wheel. 'I'hehousing p'ortion1I8 jmay thenbe placed in position with the'end 30 of the shaft 21 received'through the journal port 3|. The housing portion I 8 may then be secured to the base plate by means" of nut and bolt assemblies extending through gus'sets 67 and the base plate. When the housing -portion I8 is moved into position, the shaft 68 carrying the roller 58"is held in alignment with the apertures 59 so that when the' housing is assembled the shaft 68 will have its ends projecting through said. apertures and the cap nuts 69 on; the ends of shaft 58 may be drawn tight. It s'houldbenoted that when the housing is assembled there is a minimum of lat eral play of the shaft and the'rot'atable member 3'4 carried on the'shsa because-or the--alii-i.trrrent f the ratcl lt Wheel-'- against the end W-a', i1 l 5!, the abiitmerit 0f the "hub 38 Withithe ratchet Wheel and positioning or stop flange 35, and the abutment -"of theireduced shoulder 42 with the raised annular wearfportion surrounding the O'pen i-ng "3 lin endwa1l 23. i In operation, the person using the exerciser places himself 'on the slidable se'at 8 and secures his feet by the adjustable straps '15 against "the pedestals H I-Ie m'ay then grasp "the handle 5 d-raw himself toward the housing t6 iby'nislegs and thenpush against the :pedestals H with his legs :and at the :sametime simulate a rowing "ac- :tion by pulling his arms toward'him, Withdrawing the belt-means the aperture 526., rotatingthe L34-andttensioning thesspring'lll. The iexerciser described above comprises 'a :minimum of parts and is'assembled .ina'novel .manner. it should be noted that the arrangement of the various elements within the housing provides a small compact, lefficientexerciser. Since the housing I6 is relatively'narrow and is aligned with the longitudinal axis of the base, ample space is provided 'oneach side of the housing for a tion by an adjusting .rod inserted in :ports 65 while 'thevg-ravity pawl AS. is released, .and then rotating shaft 2'? under control of the adjusting rod until the desired tension is obtained. The resistance to the rowing action may thus be varied depending upon the condition of the person using the exerciser.

It should also be noted that the exerciser is of light weight and readily portable and movable. Since the housing is compact and small, the exerciser may be readily stored in a closet without occupying valuable storage space, by setting it upright against a Wall. The end face of the housing may be provided with a small lug adjacent the top of the housing so that if desired the exerciser may be held in an upright position by itself by contact of the lug and the end edge of the base plate with the floor.

It will be readily understood by those skilled in the art, that the exerciser described above is by way of example only and that other modifications and changes may be made without departing from the spirit of the invention which is intended to be limited only by the claims appended hereto.

I claim: i

1. An improved exerciser comprising: a pair of spaced longitudinally extending track members provided with recessed trackways; a base plate including recesses for receiving ends of said track members and holding the same in spaced parallel relation, connecting said track members; a pair of generally U-shaped housing portions, each provided with a substantially flat end wall and a side flange, said flanges being arranged to meet along a parting line parallel to the plane of said end walls attached to the base plate with said end walls parallel to the track members; a normally non-rotatable stepped shaft having one end journaled in a trunnion formed in the end wall of one housing portion and a reduced end ag siage'n '6 and spaced endwall of the opposing housi-ng portion outwardly extending s'to'p flange carried b-y-" the shaf-t; --a hollow provided with a flanged face, 'journaled on the shaft on one side of the stop flange, said "flanged face extending over the sha'fton the other s'ideo'f the stop flange a continuous resilient spring positioned within the-drum and-connected to said shaft and drum"; a polygonal section formed in the shaft adjacent the drum journaled thereon; a ratchet whee-hoarried by the polygonal section and spacing the drum from the end wall of the housing portion; ia -manually actuat'able pawl carried by the end o' f the' l'iousing portion :for engagement with the ratchet; a capstan carried *by the reduced end of said shaft ext-eriorly or the 'housing portion for "manually -imparting rotation to said shaft; an aperture formed in the housing above the face-oi saiddrum'; belt means carried by-the drum and-extending through said aperture; and

end -journaled in a trunnion formed in the end 'wall of one housing portion and aireduced end extending through -'-a journal portin the parallel and spaced end wall of the opposing "housing portion; outwardly extending stop flange carried by the shaft; a hollow drum provided with a flanged face journaled on the shaft on one side of the stop flange, said flanged face extending over the shaft on the other side of the stop flange; a continuous resilient spring positioned within the drum and connected to said shaft and drum; a polygonal section formed in the shaft adjacent the drum journaled thereon; a ratchet wheel carried by the polygonal section and spacing the drum from the end wall of the housing portion; a manually actuatable pawl carried. by the end wall of the housing portion for engagement with the ratchet; a capstan carried by the reduced end of said shaft exteriorly of the housing portion for manually imparting rotation to said shaft; an aperture formed in the housing above the face of said drum; and belt means carried by the drum and extending through said aperture.

3. An improved exerciser comprising: a pair of spaced longitudinally extending track members; a base plate connecting the ends of the track members; a pair of generally U-shaped housing portions, each provided with a substantially flat end wall and a side flange, said flanges being arranged to meet along a parting line parallel to the plane of said end walls; a normally nonrotatable stepped shaft having one end journaled in a trunion formed in the end wall of one housing portion and a reduced end extending through a journal port in the parallel and spaced end wall of the opposing housing portion; outwardly extending stop flange carried by the shaft; a hollow drum provided with a flanged face journaled on the shaft on one side of the stop flange, said flanged face extending over the shaft on the other side of the stop flange; a continuous resilient spring positioned within the drum and connected to said shaft and drum; a polygonal sec.

tion formed in the shaft adjacent the drum journaled thereon; a ratchet wheel carried by the polygonal section and spacing the drum from the end wall of the housing portion; a manually actuatable pawl carried by the end wall of the housing portion for engagement with the ratchet; an aperture formed in the housing above the face of said drum; and belt means carried by the drum and extending through said aperture.

4. An improved exerciser comprising: a pair of spaced longitudinally extending track members; a base plate connecting the ends of the track members; a pair of generally U-shaped housing portions; attached to the base plate with said end walls parallel to the track members; a normally non-rotatable stepped shaft having one end journaled in a trunnion formed in the end Wall of one housing portion and a reduced end extending through a journal port in the parallel and spaced end wall of the opposing housing portion; outwardly extending stop flange carried by the shaft; a hollow drum provided with a flanged face journaled on the shaft on one side of the stop flange, said flanged face extending over the shaft on the other side of the stop flange; a continuous resilient spring positioned within the drum and connected to said shaft and drum; a ratchet .wheel attached to the shaft and spacing the drum. from the end wall of the housing'portion; a manually actuatable pawl carried by the end wall of the housing portion for engagement with the ratchet; an aperture formed in the housing above the face of said drum; and belt means carried by the drumand extending through said aperture.

5. An improved exerciser comprising: a pair of generally U-shaped housing portions, each provided with a substantially flat end wall and a side flange, said flanges being arranged to meet along a parting line parallel to the plane of said end walls; a normally non-rotatable stepped shaft having one .end journaled in a trunnion formed in the end wall of one housing portion and a reduced end extending through a journal port in the parallel and spaced end wall of the opposing housing portion; outwardly extending stop flange carried by the shaft; a hollow drum provided with a flanged face journaled on the shaft on one side of the stop flange, said flanged face extending over the shaft on the other side of the stop flange; a continuous resilient spring positioned within the drum and connected to said shaft and drum; a ratchet wheel attached to the shaft and spacing the drum from the end wall of the housing portion; a manually actuatable pawl carried by the end Wall of the housing portion for engagement with the ratchet; an aperture formed in the housing above the face of said drum; and belt means carried by the drum and extending through said aperture.

THEODORE S. BENICE.

REFERENCES CITED The following references are of record in th file of this patent:

UNITED STATES PATENTS Number Name Date 434,771 Dowd Aug. 19, 1890 1,954,762 Wolff Apr. 10, 1934 1,983,911 Luppert Dec. 11, 1934