KR20200139686A - Manual treadmill powered by hand - Google Patents

Abstract

The present invention relates to a novel treadmill having a system for generating power by hand and replacing an electric motor for driving a tread belt. The system for generating power by hand includes a free range motion and a fixed range motion of both handles by different coupling systems between the two handles. The pivoting rotational motion of the handle can be efficiently diverted to the rear of the tread belt.

Description

Manual treadmill powered by hand

Cross-reference to related applications

This application claims the priority of U.S. Provisional Patent Application No. 62638176 filed on March 4, 2018 under the title of "hand-powered treadmill", the entire contents of which are incorporated herein by reference.

Field of invention

The present invention relates to fitness equipment, and more particularly, to a treadmill used for walking and running exercise. The present invention relates to a new concept treadmill having a hand powered system and moving the tread belt so that the manual treadmill satisfies all the needs of running and walking safely.

Current treadmills fall into two categories: motorized and non-motorized treadmills or manual treadmills. For a motorized treadmill, the user has to adjust the speed of the treadmill to walk or run at the desired speed. Users need to walk or run fast or increase the slope of the tread base to do more intensive exercise. For many users, increasing speed or incline can injure the knee and endanger the user's safety. Over the past 20 years, more than 50 people have died in treadmill accidents in the United States. In the United States, 24,000 treadmill accidents each year are sent to emergency rooms. Treadmill-related injuries account for 40% of all indoor fitness equipment-related injuries sent to the emergency room.

In a typical manual/non-motorized treadmill, it is difficult to reach the desired speed without significantly increasing the slope of the tread base, as the user must overcome the frictional resistance between the tread belt and the upper surface of the foot board. In most cases, increasing the slope of the tread base is the only option for high-intensity exercise. It is very difficult to reach the expected travel speeds of current non-motorized treadmills, thus greatly limiting the use of non-motorized treadmills. It is the biggest challenge for a non-motorized treadmill to reach the desired intensity of exercise and at the same time control the user's speed well. Numerous studies have been carried out since treadmills became the most popular fitness equipment, but no significant solution has been proposed so far.

Summary of the invention

The present invention relates to a novel treadmill having a hand-powered system, which system is generally applied to a drive train having at least one freewheel or overrunning clutch in the drive train to transmit power from the handle to the tread belt. Includes two handles connected. It uses a freewheel/overrunning clutch and a reciprocating handle coupling system within the drive train to drive the tread belt at the user's pace to generate a smooth and constant drive load. In addition, the hand-powered system transmits power to the tread belt or tread belt shaft by at least one freewheel or overrunning clutch. The handle is moved by a load applied directly to each or both handles. However, the movement of the tread belt does not drive the steering wheel.

The reciprocating handle motion system includes fixed range motion and free range motion by different coupling systems between the two handles.

The two groups of embodiments according to the invention are illustrated by way of example and are not limited by the accompanying drawings.
1-5 show aspects of a treadmill with a fixed range of reciprocating handles.
6 shows another aspect of the fixed range reciprocating handle and shows a simplified handle setting state.
7-9 show aspects of a treadmill with a free range of reciprocating handles.
10-14 illustrate another aspect of a treadmill with a free range of motion handles.
1 is a perspective view showing a treadmill with a fixed range of reciprocating handles.
FIG. 2 is an enlarged perspective view of the drive train shown in FIG. 1.
3 is a rear view of perspective B of FIG. 1.
4 is a right side view of the perspective C of FIG. 1.
5 is a left side view of the perspective D of FIG. 1.
6 is a simplified view of another fixed range reciprocating handle coupling mechanism.
7 is a perspective view of a treadmill with a free range reciprocating handle and two spot power outputs.
8 is a side view of FIG. 7.
9 is a bird's eye view of FIG. 7.
10 is a perspective view of a treadmill with a free range reciprocating handle and one spot power output.
11 is an enlarged perspective view of the drive train of FIG. 10.
12 is a bird's eye view of FIG. 10.
13 is a right side view of FIG. 10.
14 is a left side view of FIG. 10.

The present disclosure should be considered as a group of two examples relating to steering wheel motion in the present invention, and is not intended to limit the present invention to the specific examples illustrated by the following drawings or description. The reciprocating handle motion system includes a fixed range reciprocating motion and a free range reciprocating motion of both handles through different coupling systems between the two handles.

1 to 5, such as the base 40, the footrest frame 41, the front tread belt shaft 31, the rear tread belt shaft 39, the flywheels 24 and 32, and the endless tread belt 30. A manual treadmill with basic construction is shown. The manual system includes upper handle (1,36), lower handle (4,33), crank (2,34), crank connector (3,35), first shaft (13), dead spot overcoming flywheel ( 11), by means of a first chain wheel (12), a first chain (15), a first tension wheel (14), a rotating arm (9) with wheels (8,43) at each end, a torsion spring (5). Pressurized cam 7 located on axle 6, second chain wheel 16 located on second shaft 17, gear 19 located on second shaft 17, third shaft 18 ) On the gear (20), universal joint (21), connector (22), fourth shaft (23), third chain wheel (25), second chain (26), second tension wheel (27), And a freewheel chain wheel 29 located on the front tread belt shaft 31. A coupling system for two handles and a transmission system between the handle and tread belt shaft can be described herein as a drive train. In addition, the treadmill frame includes a treadmill footrest frame and a treadmill base.

The lower handles 4 and 33 are connected to the upper handles 1 and 36, respectively. The drive train frame 37 is mounted on the footrest frame 41. The lower ends of the lower handles 4 and 33 are connected to the drive train frame 47 via hinges 37 and 38, respectively. Bearings or other rotating joints may be used here to replace the hinges. The user alternately pushes and pulls each of the handles 1 and 36, and drives the first shaft 13 by an overrunning clutch 42 on the first shaft to make the first shaft 13 Can only rotate in one direction. The cranks 2 and 34 and the crank connectors 3 and 35 are used to connect the lower handles 4 and 33 to each end of the first shaft 13. The first chain 15 connects the first chain wheel 12 to the second chain wheel 16 and further rotates the second shaft 17 so that the third shaft 18 becomes a gear 19 and a gear. It is rotated in reverse through 20. The universal joint 21 is used to connect the third shaft 18 to the connector 22 and the fourth shaft 23. The third chain wheel 25 is connected to the fourth shaft 23. The second chain 26 connects the third chain wheel 25 together with the freewheel chain wheel 29. The second tension wheel 27 and the spring 28 are used to adjust the tightness of the second chain 26. The front tread belt shaft 31 is rotated by a second chain 26 via a freewheel chain wheel 29. Only when the freewheel chain wheel 29 rotates faster than the front tread belt shaft 31, the user's hand supplies power to the tread belt of the treadmill. Thus, the tread belt can coast in inertia without power from the handle. The tread belt moves at the desired speed by the force of the user's hand. The freewheel and overrunning clutch are interchangeable, and the chain wheel and chain can also be replaced here with belt wheel and belt.

1-5 show a manual treadmill with a fixed range of reciprocating handle motion. Each steering wheel movement period is fixed. That is, before the user changes the direction of movement of the handle, the user must push or pull each handle to the maximum extent. When the user's left hand pushes the handle 1 forward, the handle 36 moves backward, and vice versa.

Therefore, if one hand pushes and the other hand pulls at the same time and then changes direction after passing through each dead spot, a certain driving force can be generated. The overrunning clutch 42 may prevent the first shaft 13 from rotating in the wrong direction. When the first shaft 13 rotates, the rotating arm 9 with wheels 8 and 43 at both ends rotates and presses the cam 7 to rotate. The cam 7 is assembled to the axle 6 together with the torsion spring 5 to press the axle against the wheels 8 and 43. When the rotating arm (9) rotates, the wheel (8 or 43) reaches the upper part of the cam (7) and reaches a balance position where the cam (7) starts to move rearward towards the first shaft (13). The cam 7 is pressed until Before reaching the balance position, the torsion spring 5 stores energy from the motion of the cam 7. After the balance position, the cam 7 starts to move backward as the rotating arm 9 continues to rotate and the torsion spring 5 releases the stored energy to press the cam 7 backward and the rotating arm 9 ) To help the handle pass through the dead point. At dead point, the steering force is zero. In most settings, the dead point is the position at which the handles 1 and 36 reach the rearmost or frontmost position of the handle, or where each handle begins to change the direction of travel. Automatic or manual transmission systems may be used to change gear ratios for various running/walking paces and speeds in the drive train.

6 is a simplified illustration showing another setting of a range of motion handles fixed to each other. The handle 101 has a slot opening 102 and the handle 105 has a slot opening 106. The handle 101 and the handle 105 are rotatably connected to the shaft 121. The wheel 109 is connected to the shaft 115 by overrunning the clutch 116. The shaft 116 is rotatably connected to the supports 111 and 112. The pair of opposing cranks 104 and 108 each has an inner end and an outer end, and the inner end of each crank is fixedly attached to one end of the shaft 115. The outer end of the crank 104 has a wheel 103 and is rotatably slidable inside the slot opening 102, and the outer end of the crank 108 has a wheel 107 and is inside the slot opening 106. You can slide to rotate. The handle 101 and the handle 105 are rotatably connected on the shaft 121, while the supports 111 and 112 are fixedly connected to the shaft 121. When the handle 101 is pressed forward, the handle 105 is pulled rearward; When the handle 101 is pulled rearward, the handle 105 moves forward. Thus, the two handles 101 and 105 are connected to each other in a fixed range of motion. Since there is an overrunning clutch 116 between the shaft 115 and the wheel 116, the wheel 116 rotates in only one direction. Wheel 116 may be a chain wheel or belt wheel for transmitting power from handles 101 and 105 to the rest of the drive train.

This type of handle setting can also be used with a handle powered treadmill having a fixed range of handle motions with each other.

7-9 show one feature of a handle driven treadmill with a free range of handle motion. Each cycle of steering wheel movement is flexible. That is, there is no need for the user to push or pull each handle to the maximum extent before changing the moving direction of the handle. The user can change the mutual motion of the steering wheel at any time. In a non-motorized treadmill, when the user steps on the treadmill track to walk or run more intensively and comfortably, the user needs some extra force to pull the tread belt back. To achieve this most efficiently, a hand-driven system with two handles has been added, and a coupling system between the handles allows the two handles to move reciprocally (one handle moves forward and the other The steering wheel moves backward). A drive train is constructed that transmits the power from the hand to the endless tread belt via at least one freewheel or overrunning clutch.

One embodiment of the present invention includes a base 240, a footrest frame 241, an endless tread belt 230, a front tread belt shaft 251 and a rear tread belt shaft 252. The parts are similar to those of a traditional treadmill. Lower handles 204 and 233 are connected to handles 201 and 236, respectively. The shaft 265 and the shaft 268 are fixedly connected to the lower handle 204 and the lower handle 233, respectively. The gear 266 and the chain wheel 263 are fixedly connected to each end of the shaft 265; The gear 269 and the chain wheel 273 are fixedly connected to each end of the shaft 268. The freewheel 271 on the shaft 251 is engaged with the chain wheel 273 by a chain 272. The freewheel 271 cannot rotate the shaft 251 forward and thus the freewheel 271 can drive the tread belt 230 only rearward. Freewheel 261 on shaft 251 is engaged with chain wheel 263 by chain 262. The freewheel 261 cannot rotate the shaft 251 forward and thus the freewheel 261 can drive the tread belt 230 only rearward. Flywheels 224 and 232 are located on the shaft 251. When the right handle 236 is pressed forward, the wheel 273 rotates and makes the freewheel 271 rotate freely without meshing with the shaft 251, the shaft 268 and the gear 269 rotate and the gear ( Engaging with 266 rotates the shaft 265, wheel 263 and freewheel 161, drives the tread belt 230 rearward and rotates the handle 201 in the opposite direction to rotate rearward. When the right handle 236 is pulled rearward, the wheel 273 rotates and pulls the chain 272 to rotate the freewheel 271 and the shaft 251 so that the tread belt 230 moves rearward and the handle ( Turn 201) forward. Gear 266 and gear 268 move with each other and are engaged to move handles 201 and 236. When the handles 201 and 236 are reciprocated and pressed or pulled by the freewheel or overrunning clutches 261 and 271 at each end or shaft 251, the tread belt 230 moves rearward. The range of pivotal motion of the handles 201 and 236 may be somewhat flexible. Thus, each strike of the handles 201 and 236 within different ranges can drive the tread belt 230 backwards at different distances. In Fig. 9, the handle coupling system with two gears 266 and 269 in gear box 267 is the gears 275, 276, 277, 278 and 279 in gear box 274 ("R" in Fig. 9). "), and the two shafts can be located on the same axis. In addition, cushions and energy storage materials of this type are used to limit the maximum range of motion of the handle, spring or rubber.

10-14 show another embodiment of a hand powered treadmill with a free range of handle motion. Compared to the previous model (shown in Figs. 7 to 9), the biggest difference is the steering wheel and drive train. The loop structure on each handle minimizes slop changing of the handlebars and a one point power output is provided for the shaft of the tread belt. The treadmill includes a frame 343, a tread belt 330 and a drive train rack 301. The right handle is composed of a handle bar 347, a lower lever 348 and an upper lever 346. The left handle is composed of a handle bar 349, a lower lever 351 and an upper lever 350. The angle change on the handlebars 349 or 347 is smaller than the angle change on the lower lever 351 or 348 so that the user can fix the handlebars 349 and 347 more comfortably. When the right handle bar 347 is pulled, the lower lever 348 moves backward and the shaft 334, the chainwheel 339, and the gear 318 rotate. Within the gear box 337, the gear 318 further rotates the gear 336, the shaft 315, and the chain wheel 313 in opposite directions. Accordingly, the lower left lever 351, the handle bar 349, and the upper lever 350 move forward. The right and left handles perform a free range of reciprocating motion. When the right handle bar 347 is pulled, the chain wheel 339 rotates and the freewheel 342 further rotates by the chain 341. The chain wheel 313 rotates by the pull of the right handle bar 347 and/or the pressure of the left handle bar 349 and the freewheel 308 further rotates by the chain 309.

Tension wheels 340 and 312 are used to tighten chain 341 and chain 309, respectively. The freewheels 342 and 308 mesh with a co input shaft 307 in the same freewheeling direction to drive the tread belt 330 backwards.

When the handle bars 347 and 349 are pushed or pulled in a reciprocating manner, the shaft 307 is driven in a single rotation direction. Within the gear box 324, the gear 321 and the gear 328 are located on the same shaft, the gear 320 and the gear 333 are located on the shaft 322; The gear 323 meshes with the gear 321, the gear 328 meshes with the gear 333, and the gear 320 meshes with the gear 332. The gear 323 drives the gear 321 in the opposite direction of rotation, and rotates the shaft 329 and the gear 328. The gear 328 meshes with the gear 333 to rotate the gear 320 and further rotates the gear 332. Both gear 332 and wheel 302 are on the same shaft 311. The belt 303 connects the wheel 302 and the freewheel 304 to each other. The freewheel 304 is located on the shaft 305. Roller 345 and shaft 305 are on the same axis. Flywheels 306 and 344 are on rollers 345. The load acting on the handle bar 347 or 349 rotates the roller 345 and further moves the tread belt 380 back. The forward and backward movement of the handlebars 347 and 349 drives the tread belt 330 rearward. The user can control the striking range of the handlebars 347 and 349 to control the travel distance of the tread belt within each striking. In order to limit the maximum range of motion of the handle, a spring or rubber is used as a cushioning and energy storage material to stop the lower levers 351 and 348. Gear ratios may be changed for different running/walking strides and speeds by using automatic or manual transmission systems within the drive train. The treadmill also includes a manual or motorized treadmill foot tilt adjustment device, meters and screens for control and indication.

From the above description, it can be seen that various modifications and variations can be made without departing from the spirit and scope of the new concept of the present invention. It will be understood that no limitations to the specific embodiments disclosed herein are intended or inferred. The present disclosure is within the scope of the claims by the appended claims and includes the above modifications.

Claims (16)

In the treadmill in which power is generated by hand with a frame and an endless tread belt mounted in the frame,
Manual drive means for driving the endless tread belt to provide a moving movement surface;
Means for receiving power from the user's hand;
A means for transmitting power from the user's hand to the unidirectional rotating power output,
The manual drive means comprises first and second handles, a drive train for receiving manual power from the first and second handles, converting the manual power to rotational output power, and moving the endless tread belt. The treadmill is powered by hand. The method of claim 1, wherein the first and second handles reciprocate and engage, and when the first handle moves in one direction, the second handle moves in the opposite direction. Treadmill. The treadmill of claim 1, wherein the drive train further comprises at least one overrunning clutch or freewheel to transmit the rotational output power to move the endless tread belt. As a hand-powered treadmill
frame;
An endless tread belt mounted in the frame;
First and second handles coupled while performing a reciprocating motion of a fixed range; And
And a drive train for transmitting power from the first and second handles to the endless tread belt. The method of claim 4,
The drive train,
At least one overrunning clutch or freewheel for transmitting power to the endless tread belt; And
And a coupling device for connecting the first and second handles to each other while performing a fixed range reciprocating motion, and movement of the first and second handles only after the first and second handles pass through a maximum range of motion point A hand-powered treadmill, characterized in that the direction is reversed and the frontmost and rearmost positions of the first and second handles generally match the dead points of the handles. The method of claim 5, wherein the device for the first and second handles for performing the fixed range of reciprocating motion comprises a pair of opposing rotational coupling cranks on two opposite ends of the first shaft. A hand-powered treadmill, characterized in that the first and second handles have a fixed range of cycles and move oppositely. The method of claim 4,
The drive train is
A spring-loaded cam;
A rotating arm having a wheel connected to the cam at each end to help the first and second handles pass through dead points by the spring energy stored from the motion of the cam; And
A hand-powered treadmill further comprising at least one overrunning clutch or freewheel positioned on the first shaft to perform unidirectional rotation. As a hand-powered treadmill,
frame;
An endless tread belt mounted in the frame;
First and second handles coupled while performing a free range reciprocating motion; And
And a drive train that transmits power from the first and second handles to move the endless tread belt. The method of claim 8,
The drive train,
At least one overrunning clutch or freewheel for transmitting power for moving the endless tread belt;
Reciprocating in a free range and connecting the first and second handles to each other
Moving the first and second handles in opposite directions,
And a coupling device for reversing the direction of movement of the first and second handles whenever the direction of the input power load to the first and second handles is reversed. 10. The method of claim 9, wherein the drive train for performing a free range reciprocating motion for the handle includes a pair of opposing rotational coupling gears to move the first and second handles in opposite directions and the first And a movement of the first and second handles can be changed whenever the load direction with respect to the second handle is reversed. 11. The method of claim 10, wherein the gear train is at least one overrunning clutch or on the power input shaft of each of the first and second handles to convert the movement of the first and second handles into a unidirectional rotational movement. Hand-powered treadmill, characterized in that it further comprises a freewheel. A hand-powered treadmill having a frame and an endless tread belt mounted within the frame,
First and second handles rotatably mounted to the frame;
A drive train mounted on the frame to transmit power from the first and second handles to the endless tread belt, the drive train
Comprising a first shaft, and having a first crank at one end of the first shaft and a second crank at the other end, the first crank being connected to the first handle and the second crank being the second handle Connected to the handles and reciprocating in opposite directions to each other;
And a transmission that transmits the rotation of the first shaft at a desired rotation speed to move the endless tread belt in a speed range that matches the walking or running pace of the user,
A treadmill generating power by hand, comprising at least one overrunning clutch or a freewheel for transmitting power to the endless tread belt. The treadmill of claim 12, wherein the overrunning clutch or freewheel located on the first shaft prevents the first shaft from rotating in one direction. The method of claim 12,
The drive train is
A spring-locked cam that stores energy for passing the dead point of the handle;
A rotating arm having a wheel coupled with the spring fixing cam;
An overrunning clutch or freewheel on the first shaft; And
A treadmill generating power by hand, further comprising an overrunning clutch or a freewheel positioned on one shaft of the endless tread belt. As a treadmill that generates power by hand with a frame and an endless tread belt mounted in the frame,
A first and second handle, wherein the first handle is connected to a first handle shaft and the second handle is connected to a second handle shaft, the two handle shafts
Connected by a pair of gears on the first and second handle shafts, the first handle pivoting around the first handle shaft, the second handle pivoting around the second handle shaft and , Spring or rubber cushioning function and energy storage function material are used to limit the maximum range of motion of the handle;
A drive train mounted on the frame to transmit power from the first and second handles to the endless tread belt, the drive train
First and second handle shafts connected to each other by a pair of gears on the first and second handle shafts, wherein one end of the first handle shaft is connected to a lower end of the first handle and the second One end of the handle shaft is connected to the lower end of the second handle,
A first chain wheel or belt-wheel engaged with a first freewheel on a common input shaft and positioned on the first handle shaft and a first chain wheel or belt-wheel engaged with a second freewheel on a common input shaft and positioned on the second handle shaft, or Including a belt-wheel,
And a transmission for converting the rotation of the common input shaft to a desired rotational speed in order to move the endless tread belt within a speed range consistent with a user's walking or running pace,
A treadmill generating power by hand, comprising at least one overrunning clutch or a freewheel for transmitting power to the endless tread belt. The method of claim 15, wherein the first and second freewheels located on the common input shaft have the same freewheeling direction, and the first and second chain wheels or belt wheels located on the first and second handle shafts are chains or A hand-powered treadmill, characterized in that the belt engages the first and second freewheels located on a common input shaft.

Images