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Publication numberUS3887179 A
Publication typeGrant
Publication dateJun 3, 1975
Filing dateOct 19, 1973
Priority dateOct 19, 1973
Publication numberUS 3887179 A, US 3887179A, US-A-3887179, US3887179 A, US3887179A
InventorsKlepper John T, Morse George
Original AssigneeKlepper John T, Morse George
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Log rolling apparatus with adjustable friction structure
US 3887179 A
Abstract
Game equipment employing a horizontal frame adapted to rest upon a suitable horizontal surface and a horizontally elongated roller rotatably disposed in the frame somewhat above the surface. A spongy hollow horizontal cylindrical sleeve is disposed about the roller, the sleeve having an outer surface which resembles the bark of a tree and which is roughened to enable the feet of the players to contact the sleeve surface in a non slip manner. Structure is provided for adjusting the rotational friction of the roller in the frame to adjust the force required to rotate the roller.
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Description  (OCR text may contain errors)

United States Patent 1 Klepper et al.

[ 1 June 3, 1975 1 1 LOG ROLLING APPARATUS WITH ADJUSTABLE FRICTION STRUCTURE [76] Inventors: John T. Klepper; George Morse,

both of 3303 Quinlan St., Yorktown Heights, NY. 10591 22 Filed: on. 19, 1973 21 Appl. No.: 408,121

[52] US. Cl. 272/1 E; 272/D1G. 3 [51] Int. Cl A63b 23/06 [58] Field of Search 272/] B, 60 R, 64, 73,

272/D1G. 3, DIG. 4; 64/30 R, 30 C; 188/711, 83, 166; 193/35 A Primary Examiner-Anton O. Oechsle Assistant ExaminerR. T. Stouffer [57] ABSTRACT Game equipment employing a horizontal frame adapted to rest upon a suitable horizontal surface and a horizontally elongated roller rotatably disposed in the frame somewhat above the surface. A spongy hollow horizontal cylindrical sleeve is disposed about the roller, the sleeve having an outer surface which resembles the bark of a tree and which is roughened to enable the feet of the players to contact the sleeve surface in a non slip manner. Structure is provided for adjusting the rotational friction of the roller in the frame to adjust the force required to rotate the roller.

1 Claim, 6 Drawing Figures LOG ROLLING APPARATUS WITH ADJUSTABLE FRICTION STRUCTURE SUMMARY OF THE INVENTION My invention is directed toward a game which is to be played to simulate the sport of log rolling as performed by lumber jacks in the water, but can be played in a safe manner by unskilled players on dry land.

The game is played using equipment which employs a horizontal frame resting upon a suitable horizontal surface and, if necessary, anchored in place. An elongated horizontal roller is rotatably disposed in the frame somewhat above the surface. A spongy hollow horizontal cylindrical sleeve is disposed about the roller. The sleeve has an outer surface which resembles the bark of a tree and which is roughened to enable the feet of the players to contact the sleeve surface in a non-skid manner.

When used in a game the equipment can be used by two players who together stand on the cylinder and spin it with their feet until one player is thrown off. The other player, of course, wins.

Means are provided to adjust the rotational frictio of the roller in the frame to adjust the force required to rotate the frame and thus adjust the force required to be exerted by the players to rotate the roller. This adjusts the difficulty of the game. I

One player alone can use the equipment in challenging his own manual dexterity and balancing skills.

The equipment can be used as a therapeutic device to enhance and rehabilitate foot and leg impairments through exercise and also as a directed program to improve equilibrium.

BRIEF DESCRIPTION OF THE DRAWINGS In the drawings:

FIG. 1 is a side view of the invention;

FIG. 2 is a top view thereof;

FIG. 3 is an end view thereof; and FIGS. 4, 5 and 6 show different detail views thereof.

DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS axle against the inside of the thread of end member 12,

this end being in bearing 26.

The other end of the axle extends out of the thread of end member 10. A knob 22 can be rotated to cause washer 24, pin 38 and washer 27 to move axially back and forth along the axle toward and away from end member 10. A coil spring 28 disposed on the axle is disposed between washer 24, pin 28, washer 27 and a thick disc 30 having a central hole through which the axle extends.

The adjacent end of the roller has recesses 32 for brass bearing washer 34 which is a cone shaped friction disc with flat portion drilled and centered on 18 with upwardly curved upper end to act as a friction surface.

Two washers 24 and 27 are drilled with five equally spaced holes 37 to allow pins 38 to connect them through matching concentric holes in member 10. Clutch adjustment 22 Works against washers 24 and 27 forcing disc 3 and friction disc 34 against friction washer 36 controlling roller 16. Disc 30 is permanently secured to the small end of disc 34 and both are keyed loosely with three keys spaced apart around axle 18 allowing for lateral motion but no circular motion of the friction disc.

The roller is covered by a hollow cylindrical spongy sleeve 38 having a rough outer surface 40 resembling bark and adapted to provide a non-skid surface.

The roller freely rotates but the adjustment of the knob enables the rotational friction to be varied as described above.

The game can then be used as previously described.

While we have described our invention with particular reference to the drawings, such is not to be considered as limiting its actual scope.

Having thus described this invention, what is asserted as new is:

l. A game comprising:

a horizontal frame adapted to rest upon a suitable horizontal surface;

a horizontally elongated roller rotatably disposed about the frame somewhat above the surface, the roller having a horizontal axle;

a spongy hollow horizontal cylindrical sleeve disposed around the roller, the sleeve having an outer surface which resembles the bark of a tree and is roughened to enable the feet of the players to contact the sleeve surface in a non-slip manner; and

means to adjust the rotational friction of the roller in the frame to adjust the force required to rotate the roller, the rotational friction adjustment means including a disc having a hole through which one end of the axle extends, spring loaded manually operable means to move the disc along the axle toward or away from one end of the frame and a plurality of arms secured at one end to the disc and having opposite ends engaging suitable supports disposed in the one roller end, the arms and supports being symmetrically disposed about the axle.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US1141230 *Jan 15, 1914Jun 1, 1915James E BurkeBrake for rotary shafts.
US1241148 *Oct 27, 1913Sep 25, 1917New Haven Clock CoCenter-friction for clocks and watches.
US2175197 *Mar 23, 1935Oct 10, 1939Kent Jr Samuel LeonardApparatus for water sports
US2486027 *Oct 9, 1946Oct 25, 1949Ocean City Mfg CompanyFishing reel
US2931648 *Jun 18, 1959Apr 5, 1960Hector Davies DavidLog rolling or birling machines
US3379437 *Apr 12, 1966Apr 23, 1968Harry A. WarnerLog rolling device incorporating vertical positioning means
US3633905 *Dec 18, 1969Jan 11, 1972Etchelecou Robert J LLog rolling apparatus
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4281830 *May 12, 1980Aug 4, 1981Mill-Craft Housing Corp.Log roll article
US4491318 *Sep 30, 1982Jan 1, 1985Francke Amiel WVariable speed balance or teeter board
US4872673 *May 27, 1988Oct 10, 1989Hanley James LBalancing beam toy
US5242342 *Jul 7, 1992Sep 7, 1993Bi-Robic Conditioning Systems, Inc.Aerobic and isometric exercise apparatus
US6425843 *Apr 8, 1998Jul 30, 2002Leesa StorferApparatus for stretching the calf muscles
US6811539 *Sep 21, 2001Nov 2, 2004Duc T. NguyenHeated vibrating foot massaging device
US7137938Jul 10, 2002Nov 21, 2006Gottlieb Marc SExercise device and method of using the same
US7350786 *Apr 25, 2006Apr 1, 2008Georgis Nicholas JRotatable games
US7533888Mar 17, 2008May 19, 2009Georgis Nicholas JRotatable games
US7740571 *Dec 13, 2008Jun 22, 2010Tiffany Thuy Vi LeExercise apparatus
US8313418 *Aug 21, 2007Nov 20, 2012Bld Oriental, Ltd.Playing device
US8951134 *Aug 28, 2013Feb 10, 2015Judith L. HoeschlerArtificial sport log
US20130150215 *Dec 23, 2010Jun 13, 2013Bld Oriental Co., Ltd.Play equipment
US20130344972 *Aug 28, 2013Dec 26, 2013Judith L. HoeschlerArtificial sport log
WO2008063049A1 *Nov 20, 2006May 29, 2008Power Plate Int LtdMassage device and massage assembly
Classifications
U.S. Classification472/127
International ClassificationA63B26/00
Cooperative ClassificationA63B26/003
European ClassificationA63B26/00B