CN109692421B

CN109692421B - Elliptical trainer

Info

Publication number: CN109692421B
Application number: CN201710985973.9A
Authority: CN
Inventors: 刘时维
Original assignee: Dyaco International Inc
Current assignee: Dyaco International Inc
Priority date: 2017-10-20
Filing date: 2017-10-20
Publication date: 2021-04-27
Anticipated expiration: 2037-10-20
Also published as: CN109692421A

Abstract

The invention discloses an elliptical machine, which comprises a main frame, a resistance device, two cranks, two pedal connecting rod sets and two flexible objects. The main frame comprises a shaft. The resistance device is used for providing resistance and comprises a rotating wheel with a rotating shaft. The two cranks are respectively positioned at the left side and the right side of the rotating wheel and are provided with first ends which are connected with the rotating shaft. The two pedal connecting rod sets are respectively positioned at the left side and the right side of the main frame, the front ends of the pedal connecting rod sets are pivoted with the axle center, the rear ends of the pedal connecting rod sets are connected with a pedal, and each crank is provided with a second end connected with the pedal connecting rod set. The front end of each flexible object is connected with the pivot axis indirectly, and the rear end is connected with a corresponding pedal connecting rod group. The device has the advantages of small volume, simple structure, low noise, smooth operation and the like, can save a lot of material cost, and enables an operator to obtain good training effect.

Description

Elliptical trainer

Technical Field

The invention relates to an elliptical machine.

Background

Elliptical machines (also known as cross-trainers, X-trainers) are used to simulate climbing stairs, walking, or running.

The elliptical trainer can combine the advantages of the running machine and the bicycle to carry out the whole body exercise in the standing posture. Because both feet are fixed on the elliptical trainer at the same time, the stress time of the left foot and the right foot is half of that of the right foot, so that the impact force of the knee joint can be reduced, and the injury probability is reduced.

Most of the existing elliptical machines use the motion of "pulley" and "rail" to form a closed elliptical motion track. For example, US7,316,633 discloses an elliptical machine comprising a pair of slides. The front end of each sliding part is connected with a crank, and the rear end of each sliding part is provided with a pulley which can slide back and forth on a sliding rail. Further, a swing unit has a pair of swing arms and a pair of reciprocating members. The front end of each reciprocating element is pivoted with the tail end of a corresponding swing arm, and the rear end of each reciprocating element is fixed with a pedal seat. Each reciprocating element is pivoted with the corresponding sliding piece. When the pedal is operated, the front end of the sliding piece moves around the crank in a circular track, and the rear end of the sliding piece makes linear reciprocating motion, so that the motion track of the pedal is an ellipse.

In addition, the applicant previously filed US patent 8,926,478 discloses an elliptical machine comprising a base, a pair of leg elliptical mechanisms and a pair of hand elliptical mechanisms. The base has a frame at a front end thereof, which has a first central axis and a second central axis. The first central axis and the second central axis are parallel to each other and have a distance. The left side and the right side of the frame are respectively provided with a rewinding component which is axially arranged on the first central shaft so as to respectively allow the leg elliptic mechanism to revolve relative to the first central shaft. The hand elliptical mechanisms are respectively positioned on two sides of the frame and are provided with reverse components with shafts arranged on the second central shaft. The rotation component and the reversing component rotate in opposite directions, and the hand elliptical mechanism and the leg elliptical mechanism enable the hand and the leg of the user to form a closed track rotating in the same direction.

Disclosure of Invention

The invention relates to a novel elliptical trainer.

The purpose of the invention is realized by adopting the following technical scheme.

An elliptical machine comprises a main frame, a resistance device, two cranks, two pedal connecting rod sets and two flexible objects. The main frame includes a shaft. The resistance device is used for providing resistance and comprises a rotating wheel which is provided with a rotating shaft. The two cranks are respectively positioned on the left side and the right side of the rotating wheel and are provided with first ends connected with the rotating shaft. The two pedal connecting rod sets are respectively positioned at the left side and the right side of the main frame, the front end of each pedal connecting rod set is pivoted with the axle center, the rear end of each pedal connecting rod set is connected with a pedal, and each crank is provided with a second end which is connected with the pedal connecting rod set. The front end of each flexible object is indirectly pivoted with the axle center, and the rear end of each flexible object is connected with the corresponding pedal connecting rod group.

The object of the invention can be further achieved by the following technical measures.

In the elliptical machine, each of the flexible members is a webbing, a belt, or a wire rope.

In the elliptical machine, each pedal connecting rod group enables the connected pedal to make a roughly horizontal motion, the corresponding flexible object enables the pedal to make a roughly vertical motion, and the roughly horizontal motion and the roughly vertical motion are combined to cause the track of the pedal to be an elliptical or approximately elliptical closed track.

In the elliptical trainer, the front end of each flexible object is connected with the first end of a connecting seat, and the second end of the connecting seat is pivoted with the axle center.

The elliptical machine further comprises a hollow fixing pipe, the fixing pipe is fixed on the main frame, one or more pulleys are arranged in the fixing pipe, and the flexible object is connected with the corresponding pedal connecting rod set after the direction of the flexible object is changed through the one or more pulleys.

The elliptical machine further comprises two handrail rod groups which are respectively positioned at the left side and the right side of the main frame, the front end of each handrail rod group is provided with a handle for being held by a user, and the rear end of each handrail rod group is pivoted with the first end of the connecting seat.

Each armrest rod group further comprises a first connecting rod and a second connecting rod, the handle, the first connecting rod and the second connecting rod are respectively provided with a first end and a second end, the first end of the handle is held by a user, the second end of the handle is pivoted with a pivoting part of the main frame, the first end of the first connecting rod is pivoted with the pivoting part, the second end of the first connecting rod is pivoted with the first end of the second connecting rod, and the second end of the second connecting rod is pivoted with the connecting seat.

Each pedal connecting rod group comprises an upper connecting rod, a crank connecting pipe and a pedal pipe, wherein the upper connecting rod, the crank connecting pipe and the pedal pipe are respectively provided with a first end and a second end, the first end of the upper connecting rod is pivoted with the axle center, the second end of the upper connecting rod is pivoted with the first end of the crank connecting pipe, a part between the first end and the second end of the crank connecting pipe is connected with the second end of the crank, the second end of the crank connecting pipe is pivoted with the first end of the pedal pipe, and the second end of the pedal pipe is connected with a corresponding pedal.

The elliptical trainer is characterized in that a side pipe is arranged between the first end and the second end of each pedal pipe and protrudes out of the pedal pipe, and the flexible object is connected with the side pipe.

The elliptical trainer, wherein the resistance device further comprises a belt pulley and a flywheel, the rotating wheel is connected with the belt pulley through a first connecting piece, and the belt pulley is connected with the flywheel through a second connecting piece

According to the elliptical machine provided by the embodiment of the invention, each pedal connecting rod group and the flexible object enable the corresponding pedal to do elliptical or approximately elliptical closed track motion.

The elliptical trainer provided by the embodiment of the invention has the advantages of small volume, simple structure, low noise, smooth operation and the like, can save a lot of material cost, and enables an operator to obtain a good training effect.

Drawings

Fig. 1 is a side view showing an elliptical machine according to a preferred embodiment of the present invention.

Figure 2 is a side view of an elliptical machine according to a preferred embodiment of the present invention.

Fig. 3 is a perspective view of an elliptical machine according to a preferred embodiment of the present invention.

Fig. 4 is a perspective view of an elliptical machine according to a preferred embodiment of the present invention.

Fig. 5 is a perspective view from a certain angle showing an elliptical machine according to a preferred embodiment of the present invention.

[ description of main element symbols ]

1: the elliptical machine 10: main frame

11: the resistance device 12: crank arm

13: foot linkage 14: pedal

15: flexible article 16: connecting seat

17: the fixed tube 18: armrest rod group

101: axis 102: supporting tube

103: fixing the U tube 104: pivoting part

110: turning wheel 111: belt pulley

112: flywheel 131: upper connecting rod

132: the crank connecting pipe 133: pedal tube

171: pulley 181: handle bar

182: first link 183: second connecting rod

1101: rotating shaft 1331: side pipe

P: motion trail

Detailed Description

The following detailed description of the embodiments of the present disclosure will be given with reference to the accompanying drawings. Aside from the detailed description, this invention is capable of general implementation in other embodiments and its several details are capable of modifications in various obvious respects, all without departing from the scope of the present disclosure. In the description of the specification, numerous specific details are set forth in order to provide a more thorough understanding of the invention; however, the present invention may be practiced without some or all of these specific details. In other instances, well known process steps or elements have not been described in detail in order to not unnecessarily obscure the present invention.

Fig. 1 and 2 are side views in different operations, and fig. 3 to 5 are perspective views in different viewing angles, showing an elliptical machine 1 according to a preferred embodiment of the present invention. As shown in fig. 1 to 5, the elliptical machine 1 mainly includes: a main frame 10, a resistance device 11, two cranks 12, two pedal linkages 13, two pedals 14, and two flexible members 15.

As shown in fig. 1-5, the mainframe 10 includes a shaft 101. By way of illustration and not limitation, the main mechanism of the frame 10 may include a support tube 102 and a stationary U-tube 103, wherein the lower portion of the stationary U-tube 103 may contact the ground, the upper portion of the stationary U-tube 103 may be connected to the support tube 102, and the hub 101 may be located at the connection of the upper portion of the stationary U-tube 103 and the support tube 102. In other embodiments of the invention, the mainframe 10 may have a different configuration, but still have a hub 101.

As shown in fig. 1 to 5, the resistance device 11 is used to provide an operation resistance. The resistance device 11 includes a rotor 110, and the rotor 110 has a rotation axis 1101. In addition, the resistance device 11 may further include a pulley 111 and a flywheel 112. The pulley 110 is connected to a pulley 111 via a first connecting member (not shown), such as a belt. The pulley 111 is connected to the flywheel 112 by a second connecting member (not shown), such as a belt or chain. The shaft 1101 of the wheel 110 connects the first ends of the two cranks 12. The pedaling operation of the user drives the wheel 110 via the crank 12, the wheel 110 drives the pulley 111, and the pulley 111 drives the flywheel 112 to rotate.

As shown in fig. 1 to 5, in another embodiment of the present invention, the pulley 111 is not provided, and the rotating wheel 110 is connected to the flywheel 112 through a first connecting member. In another embodiment of the present invention, the pulley 111 and the flywheel 112 are not provided, and the rotor 110 itself is a flywheel.

As shown in fig. 1 to 5, two cranks 12 are respectively located on the left and right sides of the wheel 110 and have first ends connected to the rotating shaft 1101. Two pedal connecting rod groups 13 are respectively positioned at the left side and the right side of the main frame 10, the front end of each pedal connecting rod group 13 is pivoted with the shaft center 101, the rear end of each pedal connecting rod group 13 is connected with a corresponding pedal 14, and each crank 12 is provided with a second end connected with the pedal connecting rod group 13. In addition, the front end of each flexible object 15 is pivoted to the shaft center 101 in an indirect manner, and the rear end of each flexible object 15 is connected to a corresponding pedal linkage 13.

As shown in fig. 1-5, the flexible member 15 may be a webbing, a belt, or a cable or other flexible member. In the preferred embodiment, the flexible member 15 is a webbing.

As shown in fig. 1 to 5, the front end of each flexible member 15 can be connected to a first end of a connecting base 16, and a second end of the connecting base 16 is pivoted to the shaft center 101.

As shown in fig. 1 to 5, the elliptical machine 1 may further have a hollow fixing tube 17 fixed to the main frame 10. One or more (e.g., two) pulleys 171 are disposed in the fixed tube 17, and the flexible member 15 passes into and out of the fixed tube 17, and is connected to the corresponding foot linkage 13 after being redirected by the one or more pulleys 171.

As shown in fig. 1 to 5, in the present embodiment, the fixed pipe 17 has a U-shape, and the flexible members 15 respectively hang down from both ends of the U-shaped fixed pipe 17 to connect the corresponding pedal lever sets 13. In other embodiments of the invention, the fixed tube 17 may be a different shape.

As shown in fig. 1 to 5, in the present embodiment, each pedal linkage 13 includes an upper link 131, a crank connecting tube 132, and a pedal tube 133. The upper connecting rod 131, the crank connecting tube 132 and the pedal tube 133 have a first end and a second end, respectively. The first end of the upper link 131 is pivotally connected to the axle 101, the second end of the upper link 131 is pivotally connected to the first end of the crank connecting tube 132, the second end of the crank connecting tube 132 is pivotally connected to the first end of the pedal tube 133, and the second end of the pedal tube 133 is connected to a corresponding pedal 14. Further, a portion between the first end and the second end of the crank connecting pipe 132 is connected (fixed) to the second end of the crank 12.

As shown in FIGS. 1 to 5, each pedal tube 133 may have a side tube 1331 extending from the outside of the pedal tube 133 between the first and second ends thereof, and a flexible member 15 connected to the side tube 1331.

With the above-described structure, each pedal linkage 13 makes the connected pedal 14 perform a substantially horizontal movement, and the corresponding flexible member 15 pulls the pedal 14 to perform a substantially vertical movement, which in combination with the substantially vertical movement results in the movement locus P of the pedal 14 being an elliptical or nearly elliptical closed locus.

As shown in fig. 1 to 5, the elliptical machine 1 may further comprise two armrest lever sets 18 respectively disposed at the left and right sides of the main frame 10, wherein each armrest lever set 18 has a handle 181 at the front end thereof for being held by a user, and the rear end of each armrest lever set 18 is pivotally connected to the first end of the seat 16.

As shown in fig. 1 to 5, each armrest lever set 18 may further have a first link 182 and a second link 183. The handle 181, the first link 182, and the second link 183 each have a first end and a second end. The first end of the handle 181 is adapted to be held by a user, and the second end of the handle 181 is pivotally connected to a pivot portion 104 of the main frame 10. The first end of the first link 182 is pivotally connected to the pivot portion 104 of the main frame 10, the second end of the first link 182 is pivotally connected to the first end of the second link 183, and the second end of the second link 183 is pivotally connected to the connecting seat 16.

Referring to fig. 1-5, resistance device 11 provides a resistance force to the user when the user's feet are standing on pedals 14. The value of this resistance can be controlled by an operator interface (not shown). The prior art elliptical machine utilizes the motion of "pulley" and "rail" to form a closed elliptical motion track, requires the use of a plurality of linkages, and has the problems of loud noise, unsmooth pulley or deviation from the rail. In contrast, the elliptical trainer provided by the embodiment of the invention has the advantages of small volume, simple structure, smooth operation and low noise, can save a lot of material cost, and enables an operator to obtain good training effect.

Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. An elliptical machine, comprising:

a main frame including an axis;

a resistance device for providing a resistance force, the resistance device comprising a rotating wheel having a rotating shaft;

two cranks, locate at left and right sides of the runner separately and have a first end to connect the spindle;

two pedal connecting rod groups respectively positioned at the left side and the right side of the main frame, wherein the front end of each pedal connecting rod group is pivoted with the axis, the rear end of each pedal connecting rod group is connected with a pedal, and each crank is provided with a second end connected with the pedal connecting rod group;

a connecting seat;

the front end of each flexible object is connected with the first end of the connecting seat, the second end of the connecting seat is pivoted with the axle center, and the rear end of each flexible object is connected with a corresponding pedal connecting rod group.

2. The elliptical machine of claim 1, wherein each of the flexible members is a webbing, belt, or wire rope.

3. The elliptical machine of claim 1, wherein each foot linkage imparts a generally horizontal motion to the connected pedal and the corresponding flexible member imparts a generally vertical motion to the pedal, the generally horizontal motion in combination with the generally vertical motion causing the trajectory of the pedal to be an elliptical or near-elliptical closed trajectory.

4. The elliptical machine of claim 1, further comprising a hollow mounting tube mounted to the frame, the mounting tube having one or more pulleys therein, the flexible member being redirected by the one or more pulleys to engage the corresponding pedal linkage.

5. The elliptical machine of claim 4, further comprising two arm sets disposed on each of the left and right sides of the frame, each arm set having a handle at a front end thereof for grasping by a user, and each arm set having a rear end pivotally connected to the first end of the connecting base.

6. The elliptical machine of claim 5, wherein each armrest lever set further comprises a first link and a second link, the handle, the first link, and the second link each having a first end and a second end, the first end of the handle being adapted to be held by a user, the second end of the handle being pivotally connected to a pivot portion of the main frame, the first end of the first link being pivotally connected to the pivot portion, the second end of the first link being pivotally connected to the first end of the second link, the second end of the second link being pivotally connected to the connecting base.

7. The elliptical machine of claim 1, wherein each pedal linkage comprises an upper link, a crank connector, and a pedal tube, the upper link, the crank connector, and the pedal tube having a first end and a second end, respectively, the first end of the upper link being pivotally connected to the axle, the second end of the upper link being pivotally connected to the first end of the crank connector, a portion of the crank connector between the first end and the second end being connected to the second end of the crank, the second end of the crank connector being pivotally connected to the first end of the pedal tube, the second end of the pedal tube being connected to a corresponding one of the pedals.

8. The elliptical machine of claim 7, wherein each foot tube has a side tube extending outwardly from the foot tube between the first end and the second end, the flexible member being connected to the side tube.

9. The elliptical machine of claim 1, wherein the resistance device further comprises a pulley and a flywheel, the pulley being connected to the pulley by a first connector, the pulley being connected to the flywheel by a second connector.