Track adjusting mechanism for elliptical exerciser
An elliptical exerciser includes a frame with a wheel connected thereto and two swinging mechanisms are pivotably connected on two sides of the wheel. Each swinging mechanism includes a swing bar and a connection link. A first end of each connection link is pivotably connected to the wheel and a second end of each connection link is connected to an adjusting mechanism. The adjusting mechanism includes a main body which has a first end pivotably connected to the frame and the two second ends of the connection links are pivotably connected to a second end of the main body. Two pedals are connected to the connection links so that the user holes the swing bars and stands on the pedal to move the pedals along an oval track. The long and short axes of the oval track are adjustable by pivoting the adjusting mechanism.
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The present invention relates to a track adjusting mechanism for elliptical exercisers and the track of the pedals can be adjusted by the users.
BACKGROUND OF THE INVENTIONA conventional elliptical exerciser is shown in
Another conventional elliptical exerciser is shown in
Nevertheless, both of the two conventional elliptical exercises can only provide a fixed track for the pedals and the fixed track makes the users feel boring after using a period of time.
The present invention intends to provide a track adjusting mechanism for elliptical exercisers and includes the adjusting mechanism can be pivoted to change the angle between two connection links on which two respective pedals are located. The long axis and the short axis of the oval track can be therefore adjusted.
SUMMARY OF THE INVENTIONThe present invention relates to an elliptical exerciser that comprises a frame with a wheel connected thereto and two swinging mechanisms are pivotably connected on two sides of the wheel. Each swinging mechanism includes a swing bar and a connection link. A first end of each connection link is pivotably connected to the wheel and a second end of each connection link is connected to an adjusting mechanism which is includes a main body having a first end pivotably connected to the frame and the two second ends of the connection links are pivotably connected to a second end of the main body. A retractable device is connected between the adjusting mechanism and the frame.
The present invention will become more obvious from the following description when taken in connection with the accompanying drawings which show, for purposes of illustration only, a preferred embodiment in accordance with the present invention.
Referring to
The adjusting mechanism 30 including a main body 31 which is an H-shaped member and includes two lower ends 311 at a first end of the main body 31 pivotably connected to two first lugs 14 on the frame 10 by two bolts 51. Two upper ends 312 of a second end of the main body 31 are bent toward the wheel 20 and are pivotably connected to two respective first holes 321 in two respective first ends of the two connection bars 32 by two bolts 52. Two respective second holes 322 are defined in two respective second ends of the two connection bars 32 and the two respective second ends of the connection links 42 are pivotably connected with the second holes 322 by extending two pins 53 through the second holes 322, the second ends of the connection links 42 and tow respective pivotable members 322. The main body 31 includes two transverse bars and one of the transverse bars has a second lug 313. A retractable device 33 is connected between the adjusting mechanism 30 and the frame 10.
The retractable device 33 includes a motor 331, a threaded rod 332 and a sleeve 333. The motor 331 is fixed on the frame 10 and includes an output portion 3311 and the threaded rod 332 is retractably connected to an output portion 3311 of the motor 331. The sleeve 333 is connected to the threaded rod 332 and pivotably connected to the second lug 313 on the main body 31. The sleeve 333 moves when the threaded rod 332 is rotated.
As shown in
As shown in
While we have shown and described the embodiment in accordance with the present invention, it should be clear to those skilled in the art that further embodiments may be made without departing from the scope of the present invention.
Claims
1. An elliptical exerciser comprising:
- a frame with a wheel connected thereto and two swinging mechanisms pivotably connected on two sides of the wheel, each swinging mechanism including a swing bar and a connection link, a first end of each connection link pivotably connected to the wheel and a second end of each connection link connected to an adjusting mechanism, the adjusting mechanism including a main body which has a first end pivotably connected to the frame and the two second ends of the connection links pivotably connected to a second end of the main body, a retractable device connected between the adjusting mechanism and the frame.
2. The elliptical exerciser as claimed in claim 1, wherein two first lugs are connected to the frame and the main body is substantially an H-shaped member which includes two lower ends pivotably connected to the two first lugs by two bolts and two upper ends of the main body are bent toward the wheel and are pivotably connected to two respective first holes in two respective first ends of two connection bars by two bolts, two respective second holes are defined in two respective second ends of the two connection bars and the two respective second ends of the connection links are pivotably connected with the second holes by two pins.
3. The elliptical exerciser as claimed in claim 1, wherein two first lugs are connected to the frame and the main body is substantially an H-shaped member which includes a transverse bar on which a second lug is connected thereto, two lower ends of the main body are pivotably connected to the two first lugs by two bolts and two upper ends of the main body are bent toward the wheel and are pivotably connected to two respective first holes in two respective first ends of two connection bars by two bolts, two respective second holes are defined in two respective second ends of the two connection bars and the two respective second ends of the connection links are pivotably connected with the second holes by two pins, the retractable device is a substantially T-shaped device and one end of a rod of the retractable device is connected to the second lug, two rollers are connected to the other end of the rod and movable on two rails on the frame 10, a pivotable member is connected to a mediate portion of the rod and pivotably connected to a sleeve of the retractable device.
4. The elliptical exerciser as claimed in claim 1, wherein the retractable device includes a motor, a threaded rod and a sleeve, the motor is fixed on the frame and the threaded rod is connected to an output portion of the motor, the sleeve is connected to the threaded rod and pivotably connected to a second lug on the main body, the sleeve moves when the threaded rod is rotated.
5. The elliptical exerciser as claimed in claim 3, wherein the retractable device includes a motor, a threaded rod and a sleeve, the motor is fixed on the frame and the threaded rod is connected to an output portion of the motor, the sleeve is connected to the threaded rod and pivotably connected to a third lug of the rod, the sleeve moves when the threaded rod is rotated.
6. The elliptical exerciser as claimed in claim 1, wherein a control panel is connected on a top of a post on the frame and electrically to the motor.
Type: Application
Filed: May 14, 2007
Publication Date: Nov 20, 2008
Applicant:
Inventor: Ming Nan Chen (Taichung)
Application Number: 11/803,441
International Classification: A63B 23/04 (20060101);