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Trace increasing mechanism for elliptical exerciser

Trace increasing mechanism for elliptical exerciser description/claims

The present invention relates to a trace increasing mechanism for an elliptical exerciser so as to increase the length of the long axis of the oval trace of the elliptical exerciser.

A conventional elliptical exerciser generally includes a base with a wheel connected on one end thereof and a handle unit connected on the other end of the base. Two slidable links are respectively connected between the handle unit and the wheel. The slidable links are connected to the wheel at a distance from a center of the wheel and two pedals are installed on the slidable links so that when the user swings the two pedals alternatively, the pedals move along two respective oval trances. The wheel provides proper resistance so as to exercise the user's muscles. However, it is noted that the long axis of the oval trace is fixed because of the fixed distance between the wheel and the handle, and the length of the long axis cannot meet the requirements of some users who want to have a longer travel distance when using the elliptical exerciser.

The present invention intends to provide a trace increasing mechanism for an elliptical exerciser wherein the mechanism includes two links and one of the links is pivoted a further distance relative to the other link so as to allow the pedals to move a longer distance.

The present invention relates to an elliptical exerciser which comprises a base having a post on a first end thereof and a wheel connected to a second end of the base. Two swing arms are pivotably connected to a mediate portion of the post and two slidable link units are pivotably connected to two respective lower ends of the two swing arms. Each slidable link unit includes a first link and a second link. Two connection parts respectively extend from a first end and a second end of the first link at an angle. The first end of the first link is pivotably connected to the wheel. A first connection member is pivotably connected between the first connection part and a first end of the second link, and a second connection member is pivotably connected between the second connection part and a second end of the second link. The two lower ends of the swing arms are connected to the two respective second connection member. Each of the second links is parallel to the first link corresponding thereto and pivotable relative to the first and second connection parts.

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.

FIG. 1 is a perspective view to show the elliptical exerciser of the present invention;

FIG. 2 shows the slidable link unit connected between the wheel and the lower end of the swing bar;

FIG. 3 shows that the second link is not yet pivoted relative to the first link;

FIG. 4 shows that the second link is pivoted relative to the first link;

FIG. 5-1 shows the long axis of the oval trace of the elliptical exerciser of the present invention, and

FIG. 5-2 shows the long axis of the oval trace of the conventional elliptical exerciser.

Referring to FIGS. 1 to 3, the elliptical exerciser 1 of the present invention comprises an H-shaped base 10 which includes a post on a first end thereof and a wheel 20 is connected to a second end of the base 10. Two curved swing arms 31 are pivotably connected to a mediate portion 13 of the post by two pivot portions 311 on the two curved swing arms 31 so that the user can pivot the two swing arms 31 alternatively. A control panel 11 is connected to a top of the post and two handles 12 connected to the post 12.

• Provisional Patent
• Utility Patent

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