Exercise device

Patent metadata

Field	Value
Publication number	US-2017036062-A1
Application number	US-201514824988-A
Country	US
Kind code	A1
Filing date	Aug 12, 2015
Priority date	Aug 3, 2015
Publication date	Feb 9, 2017
Grant date	—

Abstract

An exercise device comprises a frame, two pedals, two first swing arms, two second swing arms, a resistance device, two link rods, two cranks, two limiting rods, and a stride-adjusting device. Each first swing arm has two ends, in which one end pivotally connects to the frame, and the other connects to one second swing arm. Each second swing arm has two ends, in which one end connects to one first swing arm, and the other connects to one pedal. Each crank includes an end connecting to an axle of the resistance device and another end connecting to one link rod. Each link rod includes two ends, in which one end connects to one crank, and the other connects to an area of one second swing arm. Each pedal sildely couples with one corresponding limiting rod, and an end of each limiting rod movably couples with the stride-adjusting device.

First claim

1 . An exercise device, comprising:
a frame; two first swing arms respectively arranged at a left side and a right side of the frame, each first swing arm having a first end pivotally coupling with the frame; two second swing arms coupling with the two first swing arms, each first swing arm having a second end pivotally coupling with a first end of one corresponded second swing arm; two pedals coupling with the two second swing arms, each second swing arm having a second end coupling with one corresponded pedal; a resistance device pivoted to the frame by an axle for providing a resistance; two cranks respectively arranged at a left side and a right side of the resistance device, each crank having a first end coupling with the axle of the resistance device; two link rods coupling with the two cranks and the two second swing arms, each link rod having a first end and a second end, the first end of each link rod coupling with a second end of one corresponded crank, the second end of each link rod coupling with a portion of one corresponded second swing arm; two limiting rods, each limiting rod having a first end pivotally coupling with the frame, the two pedals slidably coupling with two limiting rods; a stride-adjusting device having a first end coupling with the frame and a second end movably coupling with a second end of each of the two limiting rods.

2 . The exercise device of claim 1 , wherein the stride-adjusting device comprises a motor, a screw, and a tube, the tube has internally thread to engage with the screw, and the motor can drive the screw to rotate, so that the tube is moved along the screw in a direction toward the motor or away from the motor.

3 . The exercise device of claim 2 , wherein the frame comprises a base and a supporting structure, the base is arranged on a supporting plane or ground, and the supporting structure is arranged on the base.

4 . The exercise device of claim 3 , wherein an end of the motor pivotally couples with the supporting structure of the frame, an end of the tube couples with a horizontal linkage, and an end of each of the two limiting rods couples with the horizontal linkage.

5 . The exercise device of claim 3 , further comprising a first linkage, two second linkages, and a horizontal linkage, wherein an end of the motor pivotally couples with the base of the frame, a first end of the first linkage pivotally couples with the supporting structure of the frame, a second end of the first linkage pivotally couples with the tube, the two second linkages are respectively arranged at a left side and a right side of the first linkage, a first end of each of the two second linkages couples with a portion of the first linkage, a second end of each of the two second linkages couples with the horizontal linkage, a first end of each of the two limiting rods couples with the horizontal linkage, and a second end of each of the two limiting rods pivotally couples with the base of the frame.

6 . The exercise device of claim 3 , further comprising a plate, a track, and two rings, wherein an end of the motor pivotally couples with the base, the tube pivotally couples with the plate, the track is mounted on the base, and the plate is arranged on the track and can slide on the track, the two rings respectively couple to a left end and a right end of the plate, a first end of each of the two limiting rods pivotally couples with the supporting structure, and a second end of each of the two limiting rods passes through one of the two rings.

7 . The exercise device of claim 3 , further comprising a plate and two rings, wherein an end of the motor pivotally couples with the base, the tube pivotally couples with the plate, the plate is arranged on the base and can slide on the base, the two rings respectively couple to a left end and a right end of the plate, a first end of each of the two limiting rods pivotally couples with the supporting structure, and a second end of each of the two limiting rods passes through one of the two rings.

8 . The exercise device of claim 1 , wherein each limiting rod is arc-shaped with a center toward a portion of a user of the exercise device.

9 . The exercise device of claim 1 , wherein the greater is an angle between the two limiting rods and a vertical direction, the shorter is a stride between the two pedals.

10 . The exercise device of claim 1 , wherein the smaller is an angle between the two limiting rods and a vertical direction, the shorter is a stride between the two pedals.

11 . The exercise device of claim 1 , wherein each pedal has an inclination, and the inclination of the pedal at the lowest position is smaller the inclination of the pedal at the highest position.

12 . The exercise device of claim 1 , further comprising two roller assembly, each roller assembly coupling with one of the two second swing arms and sliably coupling with one of the two limiting rods, wherein each roller assembly comprises a front roller, a board structure, and a rear roller, the front roller and the rear roller are pivotally coupled with the board structure and are respectively arranged at a front and a rear of one corresponded limiting rod.

Assignees

• Dyaco Int Inc

Inventors

• Huang Hsuan-Fu
• Liu han-lin

Classifications

• A63B71/0622 Primary

  Visual, audio or audio-visual systems for entertaining, instructing or motivating the user · CPC title

• A63B22/04 Primary

  with movable {multiple} steps {, i.e. more than one step per limb, e.g. steps mounted on endless loops, endless ladders (steppers with cantilevered support elements pivoting about an axis A63B22/0048)} · CPC title

• A63B24/0087

  Electric or electronic controls for exercising apparatus of groups A63B21/00 - A63B23/00, e.g. controlling load · CPC title

• A63B21/225

  with flywheels · CPC title

• A63B2022/0676

  with crank and handles being on the same side of the exercising apparatus with respect to the frontal body-plane of the user, e.g. crank and handles are in front of the user · CPC title