TWO-PERSON EXERCISE WHEEL MECHANISM

Abstract

Embodiments of the present disclosure relate to a two-person exercise wheel. The two-person exercise wheel may include an exercise ring, a non-equilateral parallelogram linkage mechanism, a tension spring, and a suspension seat. When the ring is rotated, the non-equilateral parallelogram linkage mechanism may be rotated by a rocker arm. In some embodiments, the gravitational forces and the tension spring connected between the two seats act on the ring via the non-equilateral parallelogram linkage mechanism and the rocker arm. In some embodiments, the supporting force of the ring may pass through a circular center. Further, the gravitational forces may act on the non-equilateral parallelogram linkage mechanism and the persons on the seats may pedal to enable the ring to gain a rotation torque. Further, the tension spring may adjust the torque between the seats and the circular center when the two seats are in positions different from each other.

Claims

1.-10. (canceled)

11. A two-person exercise wheel mechanism, comprising: a ring; a rocker arm lever; a parallelogram linkage mechanism; a spring; a stopper; and one or more support beams, wherein: two rocker arm levers have their bottom ends respectively hinged to two points of the ring at which a diameter line intersects the ring; the two rocker arm levers have their top ends hinged to opposite ends of the parallelogram linkage mechanism between which a tension spring is provided; and two stoppers are positioned at the bottom ends of the two rocker arm levers.

12. The two-person exercise wheel mechanism of claim 1, wherein: two rings are fixedly connected in juxtaposition; two seats are provided between the two rings, so that the two-person exercise wheel is formed; and a connecting line between respective equivalent positions on the two rings of a same structure is parallel to a concentric axis vertically passing through circular centers of the two rings.

13. The two-person exercise wheel mechanism of claim 2, wherein: each of the two parallel rings of the two-person exercise wheel is fixedly mounted with a ring at an outward position; and a diameter of the additional ring is greater than that of the ring of the exercise wheel mechanism.

14. The two-person exercise wheel mechanism of claim 2, wherein: each of the two rings of the two-person exercise wheel is mounted with the support beams at symmetrical positions; and the support beams on the two parallel rings maintain consistent positions.

15. The two-person exercise wheel mechanism of claim 2, wherein: the parallelogram linkage mechanism is a non-equilateral parallelogram linkage mechanism; when two ends connected to the seats are in upper and lower positions, two connecting rods of the non-equilateral parallelogram linkage mechanism connected at one end where the seat is at a lower end present a long right rod and a short left rod; and two connecting rods of the non-equilateral parallelogram linkage mechanism connected at the other end where the seat is at an upper end present a short right rod and a long left rod.

16. The two-person exercise wheel mechanism of claim 2, wherein: the ring is provided with the two stoppers; and when the ring is rotated clockwise, the rocker arm levers are restricted by the stoppers from rotating clockwise around points of the ring to which the rocker arm levers are hinged as circular centers.

17. The two-person exercise wheel mechanism of claim 2, wherein for springs and spring strength adjustment devices within the range of the two-person exercise wheel, the two springs maintain consistent tensile strength as much as possible.

18. The two-person exercise wheel mechanism of claim 2, wherein when the circular center of the ring is fixedly mounted, the ring is replaceable by a connecting rod passing through the circular center of the ring.

19. The two-person exercise wheel mechanism of claim 2, wherein: the seat on the two-person exercise wheel is formed by means of connection of suspension racks and a seat plate; the two suspension racks of each seat are interconnected by a rigid back beam of the seat; and the seat plate is mounted to the suspension racks of the seat in a suspending manner.

20. The two-person exercise wheel mechanism according to claim 2, wherein: a pedal is provided on the two-person exercise wheel; armrest handles are provided on the suspension racks on both sides of the seat; a safety belt is further provided; and the armrest handles are provided symmetrically on the sides of the seat.

Description

BRIEF DESCRIPTION OF DRAWINGS

[0015] FIG. 1 is a schematic view of a basic structure of a two-person exercise wheel.

[0016] FIG. 2 is a sectional view of a specific structure of a two-person exercise wheel.

[0017] 1—Ring; 2—Rocker arm lever; 3—Parallelogram linkage mechanism; 4—Tension spring; 5—Spring adjustment device; 6—Seat plate; 7—Pedal; 8—Suspension rack; 9—Stopper; 10—Outer ring; 11—Support beam; 12—Armrest handle; 13—Back beam; 14—Depression bar; 15—Carrier rod; 16—Movable support beam

DESCRIPTION OF EMBODIMENTS

[0018] The following is a detailed description of operating principles and usage modes of a specific embodiment of the present invention in conjunction with a schematic view of a basic structure of a two-person exercise wheel as shown in FIG. 2.

[0019] A two-person exercise wheel is provided with two seat plates (6), on each of which there is a user. Two persons are subjected to pull by the earth gravity to form two downward gravitational forces at the positions of the two seat plates (6). During a rolling process, the two-person exercise wheel would always obtain an upward supporting force by virtue of a contact surface between a ring (10) and the ground, and this supporting force always passes through the circular center of each of rings (1), (10). When the two seat plates (6) are in a horizontal position, a depression bar (14) mounted on the outer ring (10) of the two-person exercise wheel is pressed into the outer ring (10), and the depression bar (14) pushes up a movable support beam (16) through an carrier rod (15). At this point, a lower suspension end of a non-equilateral parallelogram linkage mechanism (3) can be supported by the movable support beam (16). One end of the non-equilateral parallelogram linkage mechanism (3) having the gravitational force is behind the forward direction of the ring, and is supported upward by a rocker arm lever (2) on the ring (1), and is closer to the circular center; the gravitational force at the front end of the non-equilateral parallelogram linkage mechanism (3) is farther away from the circular center. The gravitational forces plus the restriction forces of rocker arm levers (2) connected to the ring (1) in combination with the support beam (16) make a spring (4) between the two ends of the non-equilateral parallelogram linkage mechanism (3) stretched to the maximum. With a varied difference between torques of the gravitational forces on the two seat plates (6) in relative to the circular center of the ring (1) in the horizontal position, the person in the front position can obtain a greater rotation torque in relative to the person in the rear position, so that the two-person exercise wheel is rotated toward a forward direction, and meanwhile the person in the rear position is pushed to a high position. As the person in the front position is rotated to a lower position, at an end of an articulated axle of the non-equilateral parallelogram linkage (3) to which no seat is hinged, an outward extending portion of the articulated axel rests on an unmovable support beam (11), functioning to support the non-equilateral parallelogram linkage mechanism (3). In this way, the gravitational force acting on the upper seat can suppress the non-equilateral parallelogram linkage mechanism. With the characteristics of the non-equilateral parallelogram linkage mechanism, the lower seat is pulled up, so that the difference between gravitational forces on the upper and lower seats (8) is affordable within the tensile strength of the spring (4) and that the two seats (8) are close in the upper and lower positions, thereby reducing the torque as required for overcoming a rotational resistance. Meanwhile, since connecting rods of the non-equilateral parallelogram linkage mechanism (3) hinged to the lower seat present a long right rod, the rocker arm levers can be effectively pushed into stoppers (9), playing their function of restricting the rocker arm levers (2) from moving clockwise. With the rotation, the front seat plate (6) and the rear seat plate (6) are gradually in relative up and down positions, and the advantage of the varied difference between torques will gradually decrease. At this point, the rotation energy mainly comes from the rotational inertia of the two-person exercise wheel obtained previously, moreover, the person on the upper seat plate (6) pedals a front part of a pedal (7) with his/her feet, and continues to use manpower to push the two-person exercise wheel to rotate forward. Since the parallelogram linkage mechanism (3) is designed as a non-equilateral parallelogram linkage mechanism (3), in the forward direction, at the end of the non-equilateral parallelogram linkage mechanism (3) hinged with the spring (4) in the front position, the two connecting rods are an upper long rod and a lower short rod, and at the end of the non-equilateral parallelogram linkage mechanism (3) hinged with the spring (4) in the rear position, the two connecting rods are a lower long rod and an upper short rod. Such a design is made relying on the structural characteristics of the non-equilateral parallelogram linkage mechanism (3), so that till the person who was originally in the front position is rotated to the position directly below the circular center, the center of gravity of the person in the upper position at this time has moved to a front position relative to the circular center of the ring (1) due to the effect of the long connecting rod, and the person in the lower position has a zero torque in the horizontal position relative to the circular center, and for the person in the upper position, his/her center of gravity has already been in a forward position in the horizontal position relative to the circular center. The gravitational force acting on the upper seat plate (6) causes the two-person exercise wheel to continue to obtain a forward rotation torque until the persons on the two seat plates (6) returns to horizontal positions. Cycle by cycle, the two-person exercise wheel keeps rotating. The tension spring (4) is also provided with an adjustment device (5), which aims to compensate for a difference between weights of the two persons on the exercise wheel and to maintain consistent strength on the left and right sides of the spring. Suspension racks (8) on both sides of each seat have their upper ends hinged to two ends of the non-equilateral parallelogram linkage mechanism (3) to which the spring (4) is hinged, and are in a suspending state, so that during the exercise, the suspended seat plate (6) can maintain a natural balance upwardly by virtue of its gravitational force. At the same time, a pedal (7) is provided between the two rings (1) arranged in parallel and also provided in the middle position to the inner rings (1), which aims to duly use feet to add force on the pedal (7) during rotation of the two-person exercise wheel, so that the rings are rotated forward. Armrest handles (12) rigidly connected to the suspension racks can give the person on the seat a gripper to maintain balance during the exercise. In cooperative arrangement, a safety belt is attached to the suspension racks of the seat where the suspension racks are connected to the articulated axels, and a back beam (13) of the seat is further fixedly connected to the suspension racks (8) on both sides of the seat, both of them point to the positions of the articulated axels. The safety belt is arranged in front of the person on the seat, which together with the back beam (13) of the seat forms a protective ring to ensure safety and fun during the exercise.