GB2413093A

GB2413093A - Walk simulating machine

Info

Publication number: GB2413093A
Application number: GB0408311A
Authority: GB
Inventors: Shih-Chang Tsai
Original assignee: Tonic Fitness Tech Inc
Current assignee: Tonic Fitness Tech Inc
Priority date: 2004-04-14
Filing date: 2004-04-14
Publication date: 2005-10-19
Also published as: GB0408311D0

Abstract

A walk simulating machine is provided with two side connecting rods 50 for supporting two pedal connecting rods 40. Each side connecting rod 50 consists of an upper 51 and a lower 52 connecting rod pivotally connected with each other, the upper connecting rod 51 fixed with a horizontal rod 31, while the lower connecting rods 52 are able to sway back and forth together with the pedal connecting rod 40. Thus, when the upper and the lower connecting rod are positioned in a straight line and in a non-straight line, the sway pivot of the front end of the pedal connecting rod 40 will be different and hence the front end of the walking orbit will turn upward a bit, keeping a user's body stable when exercising thereon. The upper connect rods 51 can be driven by a slope adjuster 70 to change its positional angles and synchronously change the angles of the walking orbit. The walk simulating machine can be operated in three modes of exercise, namely walking on the flat (See Figures 3, 6A, 7), walking uphill (Figures 6B, 8, 9) and walking downhill (Figures 6C, 10, 11).

Description

<-I, 241 3093

WALK SIMULATING MACHINE

This invention relates to a walk simulating machine, particularly to one having the front end of its walking orbit designed to turn upward a little to enable a user to walk thereon steadily, able to eliminate the drawback of a conventional walking machine with an egg-shaped oval and water-drop-shaped walking orbit which is likely to force a user's body slant forward and slip or fall off the pedals owing to unstable posture caused by the improper center of gravity when the user makes exercise using the conventional walking simulating machine.

Known walk simulating machines provide an egg-shaped oval walking orbit for the movement of the pedals with the front end portion of the orbit inclining down Therefore, when a user exercises by walking on the pedals of the machine, his body will tend to slant forward In an unsteady manner. To prevent the body from slanting forward and to support avoid slippng/fallng off the pedals, a user usually has to support his center of gravity by his toes This can lead to sports injuries (such as a cramp of the foot) and not a walking style which does not conform to ergonomics design.

Preferred embodiments of the Invention seek to provide a walk simulating machine which alleviates these problems by having the front end of its walking orbit of the pedals designed to turn upward a bit Thus. when a user exercises walking with the feet stepping on the pedals, the heels of the user's feet may land first on the ground, that is, the center of gravity of his body will advantageously be completely supported by the heels of the feet, thereby enabling a user to carry out walking exercise thereon in a steady manner and with the structure of the walk provided by the simulating machine conforming to an ergonomic design.

A first preferred feature of the invention comprises two vertical side connect rods having their lower ends respectively and pivotally connected with the front ends of two pedal connecting rods. Each vertical side connect rod advantageously consists of an upper and a lower connecting rod pivotally connected with each other. The upper connecting rods are preferably fixedly positioned, while the lower connecting rods are preferably able to sway back and forth together with the two pedal connecting rods.

Thus, when the upper and the lower connecting rod are positioned in a straight line and in a non-straight line, the sway pivots of the front ends of the pedal connecting rods will be different and hence the front end of the walking orbit will turn upward a little allowing a user's heels to land on the ground first such that a user can advantageously keep his body steady when using the machine.

A second preferred feature of the invention is a slope adjuster which is operable to drive the upper connecting rods and adjust them to a certain positional angle. Thus, when the upper connecting rods are driven to change their positional angles, the angles of the walking orbit will synchronously be changed, forming a simulated sloppng-up or slopping-down or horizontal condition for a user to make exercise of walking.

For a better understanding of the present invention, and to show how the same may be carried into effect, reference Will now be made, by way of example to the accompanying drawings, in which: Fig. 1 is an upper view of the walking orbit formed by movement of the pedals of a walk simulating machine according to the prior art; Fig 2 is a perspective view of a walk simulating machine embodying the present invention, Fig. 3 is a side cross-sectonal view of the walk simulating machine embodying the present invention.

Fig. 4 is a partial cross-sectional view of the walk simulating machine embodying the present invention; Fig. 5 is a partial front upper view of the front portion of the walk simulating machine embodying the present invention, Fig. 6 (A) is a side cross-sectional view of a slope adjuster embodying the present invention and adjusted to a horizontal condition, Fig 6 (B) is a side cross-sectional view of the slope adjuster embodying the present invention and adjusted to a sloping-up condition; Fig. 6 (C) Is a side cross-sectional view of the slope adjuster embodying the present invention adjusted to a sloping-down condition; Fig 7 is a side cross-sectional view of a walking orbit embodying the present Invention adjusted to a horizontal condition; Fig. 8 Is a side cross-sectional view of the walk simulating machine embodying the present invention having its walking orbit adjusted to a sloping-up condition; Fig. 9 is a side crosssectional view of the walking orbit embodying the present invention adjusted to the sloping-up condition; Fig. 10 is a side cross-sectonal view of the walk simulating machine embodying the present Invention having its walking route adjusted to a downward-slope condition, Fig. 11 Is a side cross-sectional view of the walk simulating machine embodying the present invention in case of the walking orbit adjusted to a sloping- down condition, Fig. 12 is a cross-sectional view of another preferred embodiment of position lmiting members of the upper connecting rods embodying the present invention; and Fig. 13 is an exploded perspective view of the position-limiting member of the upper connecting rod embodying the present invention.

A preferred embodiment of a walk simulating machine in the present invention, as shown in Figs. 2 and 3, includes a base 1O, a crank unit 20, a front post 30, two pedal connecting rods 40, two vertical side connecting roods 50, two hand-control connecting rods 60, and a slope adjuster 70 as its main components combined together.

The base 10 stands on the ground for supporting other components thereon.

The crank unit 20, as shown in Fig. 3, is fixedly assembled on the rear upper side of the base 10, having its opposite sides respectively and pivotally connected with a crank 21 and formed with an angular difference of 180 degrees between the two cranks The front post 30 is fixed with the front end of the bottom base 10, extending upward vertically and having the opposite sides of its upper end respectively provided With a horizontal rod 31 extending outward, as shown in figs. 2 and 4. The horizontal rod 31 has its outer ends respectively and pivotally connected with a sliding base 32 having its outer end provided with two rollers 33 having a gap 34 formed therebetween The two pedal connecting rods 40, as shown in Fig. 3, are respectively positioned at the opposite sides of the base 10, respectively having the rear end pivotally connected with the outer end of each crank 21 and the upper front portion secured with a pedal plate 41 to be treaded by a user.

The two vertical side connecting rods 50, as shown in Figs 2 and 4, are respectively positioned at the two sides of the front post 30 Each side connecting rod 50 consists of an upper connecting rod 51 and a lower connecting rod 52 pivotally connected with each other. The upper connecting rods 51 have their upper ends pivotally connected with the horizontal rod 31, while the lower connecting rods 52 have their lower ends respectively and pivotally connected with the front ends of the two pedal connecting rods 40 The two hand-control connecting rods 60, as shown in Figs. 2 and 3, are respectively positioned at the two sides of the front post 30, having the lower ends respectively and pivotally connected with the front ends of the two pedal connecting rods 40 and the upper ends respectively passing through the gap 34 between the two rollers 33 of the sliding base 32 and extending upward to be held by a user.

The slope adjuster 70, as shown in Figs. 2 and 4, is secured with the front post and positioned under the horizontal rod 31 The slope adjuster 70 is provided with a slope adjusting rod 71 transversely inserted through the front post 30 and having two ends respectively extending outward and located at the opposite sides of the front post The slope adjusting rod 71 has two ends respectively fixed with a crank 72 having the other end pivotally connected with an interacting block 73 bored with a vertical through hole 730 in the center, as shown in Fig. 4. Thus, the upper connecting rod 51 can be Inserted through the through hole 730 of the interacting block 73 and has its upper end pivotally connected with the hang rod 31, while the lower connecting rod 52 has its lower end pivotally connected with the front end of the pedal connecting rod 40.

In addition, the slope adjuster 70 Is provided with a positioning disk 74, an adjusting lever 75, a tenor 76 and a pressing rod 77.

The positioning disk 74 has one side secured with the front post 30 and the other side provided with an arc-shaped projecting rib 740 having plural positioning recesses 741 separately formed at the locations of preset angular difference, with the projecting rib 740 between every two positioning recesses 741 formed with an arc-shaped recessed surface 742, as shown in Figs. 4 and 6 (A) The adjusting lever 75 having its upper end vertically fixed with the slope adjusting rod 71 and the other end bent and extending to the front of the front post 30, able to drive the slope adjusting rod 71 to move together, as shown in Figs. 4 and 5.

The tenon 76 has one end transversely inserted through the adjusting lever 75, having its engage end 760 resting on the projecting rib 740 of the positioning disk 74 to be engaged and positioned In the positioning recesses 741. The tenon 76 is provided Inside with a spring for forcing elastically the engage end 760 to always push against the projecting rib 740.

The pressing rod 77 has its Intermediate portion pivotally connected with the adjusting lever 75, having one end Inserted in a connecting portion between the adjusting lever 75 and the engage end 760 of the tenon 76. When the pressing rod 77 Is pulled toward the adjusting lever 75, its other end will by leverage actuate the engage end 760 of the tenon 76 and compress the inner spring to disengage the engage end 760 from one of the positioning recesses 741 of the projecting rib 740, as Indicated by the arrows in Fig. 5 Thus, the adjusting lever 75 can be pulled to actuate the slope adjusting rod 71 and the interacting blocks 73 to shift together and synchronously actuate the upper rods 51 to shift and change its positional angle Apart from being handled manually, the slope adjuster 70 can also be controlled by an electrically controlled device (such as a motor) to drive the slope adjusting rod 71 to shift and adjust its positional angles.

After the walk simulating machine is assembled, its walking orbit can be adjusted into three conditions for use.

I. The walking orbit is adjusted In a horizontal state when the upper connecting rods are controlled by the slope adjuster 70 to extend downward vertically, as shown in Figs. 3 and 6 (A). In this condition, when a user has its feet standing on the pedals plates 41 of the pedal connecting rods 40 and his hands holding the upper ends of the two hand- control connecting rods 60 and begins pedaling, there will form the same walking orbit as shown In Fig. 7. When the upper connecting rods 51 are kept motionless and the lower connecting rods 52 swing in alignment with the upper connecting rods 51, the swing pivot of the upper and the lower connecting rods 51, 52 is the horizontal rod 31. When the lower connecting rods 52 sway and deflect from the upper connecting rods 51, the sway pivot of the lower connecting rod 52 is the pivotal Joint of the upper and the lower connecting rod 51 and 52.

2 The walking orbit is adjusted In an sloppng-up condition when the adjusting lever 75 Is driven to actuate the interacting blocks 73 to make the lower connecting rods 52 shift backward and positioned at a certain angle, as shown in Figs. 8 and 6 (B) At this time, the walking orbit has its front end turning upward, as shown In Fig. 9, letting a user pedaling thereon feel as if he were training to walk on an upward slope.

3 The walking orbit is adjusted In a slopping-down condition when the adjusting lever 75 is driven to actuate the Interacting blocks 73 to make the lower connecting rods 52 shift forward and positioned at a certain angle, as shown In Figs 10 and 6 (C).

At this time, the walking orbit has its front end slanting downward, as shown in Fig. 11, letting a user pedaling thereon feel as If he were training to walk on a downward slope.

In addition, a movable disk 78, as shown in Figs. 12 and 13, can take the place of the Interacting block 73, as shown in Fig. 4, for controlling positional shift of the upper connecting rod 51 to. The movable disk 78 is provided vertically, having one side facing the crank 72 provided with a central shaft 780 protruding outward horizontally. The crank 72 has a shaft hole 720 bored In the center and facing the central shaft 780 of the movable disk 78 for receiving the central shaft 780 therein The movable disk 78 has the other side provided with two postion-limting studs 781 protruding outward transversely to be respectively positioned at the front and the rear side of the upper connecting rod 51 Since the upper connecting rods 51 are kept motionless when a user steps on the pedal plates 41 to walk, the sway pivot of the lower connecting rods 52 vanes when the upper and the lower connecting rod 51, 52 are positioned in a straight line and in a non-straght line. Therefore, the walking orbit will have its front end turning upward a little Thus, a user's heels can land the on the ground first when he stretches forward the feet for pedaling, able to keep the center of gravity of pedaling steady Furthermore, when adjusted to a slopptng-up or a sloppng-down condition, the walking orbit still can keep its front end somewhat turning upward, conforming to ergonomics design and able to avoid sports injuries.

While the preferred embodiment of the invention has been described above, it will be recognized and understood that various modifications may be made therein and the appended claims are intended to cover all such modifications that may fall within the scope of the invention.

Claims

I A walk simulating machine composing: a base; a crank unit fixedly assembled on a rear portion of said base, said crank unit having its opposite sides respectively and pivotally connected with a crank, having an angular difference of 180 degrees between said two cranks; a front post secured on a front end of said base and extending upward vertically, said front post having its upper end provided with a horizontal rod extending outward, said horizontal rod having its two outer ends pivotally connected with a sliding base, :s each said sliding base provided at its outer end with two rollers having a gap formed therebetween -L c: two pedal connecting rods respectively positioned at the opposite sides of said bottom base, said two pedal connecting rods having their rear ends respectively and pivotally connected with said two cranks of said crank unit, wherein each pedal connecting rod is fixed on the topside with a pedal plate, two vertical side connecting rods respectively positioned at the opposite sides of said front post, each vertical connecting rod consisting of an upper connecting rod and a lower connecting rod pivotally connected with each other, said two upper connecting rods having their upper ends respectively and pivotally connected with said horizontal rod, said two upper connecting rods controlled not to sway back and forth randomly, said two lower connecting rods having their lower ends respectively and pivotally connected with the front ends of said two pedal connecting rods; and two hand-control connecting rods respectively positioned at the opposite sides of said front post, said two hand-control connecting rods having their lower ends respectively and pivotally connected with the front ends of said two pedal connecting rods, said two hand- control connecting rods having their upper ends respectively extending upward and inserted through said gap of said sliding base, said two hand control connecting rods having their upper ends positioned above said sliding base for a user to hold thereon.
2. A walk simulating machine as claimed In Claim 1, wherein said two upper connecting rods of said two vertical side connecting rods are restricted from swaying back and forth arbitrarily by a slope adjuster, which Is able to drive said upper connecting rods to shift and deflect to a certain angle, and therefore, based on the positional angular differences of said upper connecting rods, the walking orbit formed by the pedals of said walk simulating machine can be adjusted into various angles to form a horizontal condition or a sioppng-up condition or a slopping-down condition.
3 A walk simulating machine as claimed in Claim 2, wherein said slope adjuster is provided with a slope adjusting rod, a positioning disk, an adjusting lever, a tenon and a pressing rod, said slope adjusting rod transversely inserted through said front post and positioned under said horizontal rod, said slope adjusting rod having its opposite ends respectively fixed with a crank, each said crank pivotally connected with an interacting block, said interacting block bored with a vertical through hole for each said upper connecting rod to be inserted therethrough, said positioning disk having one side secured with said front post and the other side formed with spaced-apart posibonng recesses with positional angular differences, said adjusting lever having its upper end vertically secured with said slope adjusting rod, said tenon having an engage end transversely Inserted through said adjusting lever, said engage end of said tenon Inserted in one of said positioning recesses of said positioning disk, said tenon having a spring fitted inside to keep said engage end engaged In one of said positioning recesses, said pressing rod having its Intermediate portion pivotally connected with said adjusting lever, said pressing rod having one end inserted in a connecting portion between said tenon and said adjusting lever, said pressing rod pulled to control said engage end of said tenon to disengage from one of said positioning recesses of said positioning disk, said upper connecting rod restricted not to sway back and forth randomly by said slope adjuster, said upper connecting rod able to be adjusted to a certain angle.
4. A walk simulating machine as claimed in Claim 2, wherein said slope adjuster Is provided with a slope adjusting rod and an electncallycontrolled device, said slope adjusting rod transversely inserted through said front post and positioned under said horizontal rod, said slope adjusting rod having its opposite ends respectively connected with a crank, each said crank having its outer side pivotally connected with an interacting block, said Interacting block bored with a vertical through hole for each said upper connecting rod to pass therethrough, said electrically-controlled device driving said slope adjusting rod to deflect to a certain angle, said slope adjusting rod driven to control said upper connecting rod to defect for a certain angle and be positioned in place.
5. A walk simulating machine as claimed in Claim 2, wherein said slope adjuster is provided with a slope adjusting rod, a positioning disk, an adjusting lever, a tenon and a pressing rod, said slope adjusting rod transversely Inserted through said front post and positioned under said horizontal rod, said slope adjusting rod having its opposite sides respectively secured with a crank, each said crank pivotally connected with a movable disk, each said movable disk having its outer side provided with two postion-limtng studs extending outward, said two positon-limting studs respectively positioned at the front and the rear side of said upper connecting rod, said positioning disk having one side secured with said front post and the other side formed with spaced-apart positioning recesses with positional angular difference, said adjusting lever having its upper end vertically fixed with said slope adjusting rod, said tenon having an engage end transversely Inserted through said adjusting lever and positioned In one of said positioning recesses of said positioning disk, said tenon having a spring fitted Inside to keep said engage end engaged and positioned in said positioning recess of said positioning disk, said pressing rod having its intermediate portion pivotally connected with said adjusting levers said pressing rod having one end Inserted In a connecting portion between said tenon and said adjusting lever, said pressing rod pulled to control said engage end of said tenon to disengage from one of said positioning recesses of said positioning disk, said upper connecting rod restricted by said slope adjuster not to sway back and forth arbitrarily, said upper connecting rod able to be adjusted to a slopping-up angle or a sloppng-down angle.
6. A walk simulating machine as claimed In Claim 2, wherein said slope adjuster is provided with a slope adjusting rod and an electrcallycontrolled device, said slope adjusting rod transversely inserted through said front post and positioned under said honzontal rod, said slope adjusting rod having its opposite sides respectively fixed with a crank, each crank having its outer side pivotally assembled with a movable disk, each movable disk having one side provided with two position-lmiting studs extending outward honzontally, said two position-limiting studs respectively positioned at the front and the rear side of said upper connecting rod, said electrcally-controlled device driving said slope adjusting rod to shift and setting its deflected angle, said slope adjusting rod driven to control said upper connecting rod to deflect for a certain angle and be positioned in place.
7. A walk simulating machine substantially as hereinbefore described with reference to the accompanying drawings.