Elliptical exerciser
An elliptical exerciser includes a base, a body, a transmission device, an adjustable upright post, a pair of handles and two foot pedal rods. The post is composed of an upper tube which is retractably inserted in a lower tube. Two respective mediate portions of the two handles are connected to two sides of the upper tube. Two ends of each foot pedal are respectively connected to a lower end of the handle and the transmission device. The swinging of the handles drives the foot pedal rods and the transmission device rotates. The positions of elliptical trace of the pedal rods are adjusted by adjusting the upper tube upward or downward relative to the lower tube so as to simulate uphill hiking and downhill hiking and exercise different parts of muscles.
The present invention relates to an elliptical exerciser, especially for an adjustable post which changes the positions of the elliptical trace of the pedals so as to obtain different modes of exercising conditions.
BACKGROUND OF THE INVENTIONPeople take exercise to keep a good physical condition by jogging, swimming, or oxygen-gained exercises. The exercises consume calories, increase the strength of muscles and reduce fat. Nevertheless, outdoors exercises are easily affected by the temperature and/or the climate, so that many people prefer to take exercise indoor such as weight lifting, treadmills, stationary bike or stepping machine. The elliptical exercisers involve many actions such as walking, stepping, pushing, and pulling so as to reinforce the durability and strength of muscles on legs, waist, hips and arms. The elliptical machine occupies less space and can be used in any places and in any time.
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The present invention intends to provide an elliptical exerciser wherein the elliptical trace can be changed according different modes of exercising so as to meet different requirements of the users.
SUMMARY OF THE INVENTIONThe main object of the present invention is to provide an elliptical exerciser and the inclination of the pedals can be adjusted by adjusting the upright post so as to simulate different types of exercising conditions and to exercise different parts of muscles.
In order to achieve the object mentioned above, the present invention provides an elliptical exerciser includes a base, a body, a transmission device, an adjustable upright post, a pair of handles and two foot pedal rods. The post is composed of an upper tube which is retractably inserted in a lower tube. Two respective mediate portions of the two handles are connected to two sides of the upper tube. Two front ends of each foot pedal rod are respectively connected to a lower end of each the handle and two rear ends of each foot pedal rod are respectively connected to the transmission device. A foot pedal board is provided on each foot pedal rod. The swinging of the handles drives the foot pedal rods and the transmission device rotates. The positions of elliptical trace of the foot pedal boards are adjusted by adjusting the upper tube upward or downward relative to the lower tube so as to simulate uphill hiking and downhill hiking and exercise different parts of muscles.
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.
BRIEF DESCRIPTION OF THE DRAWINGS
Referring to
The elliptical exerciser 20 has an upright post 25 at a front end thereof and the post 25 includes an upper tube 251 and a lower tube 252 in which the upper tube 251 retractably inserted for adjusting the height. A lower end of the lower tube 252 is fixed to the base 21 of the body 22. Two handles 26 are respectively pivotably connected to two sides of the upper tube 251 at two respective mediate portions of the two handles 26. The upper tube 251 includes two extension rods 261 on the two sides thereof and the two respective mediate portions of the two handles 26 are connected to the outer peripheries of the two extension rods 261, so that the two handles 26 are pivoted about the two extension rods 261.
The elliptical exerciser 20 has two foot pedal rods 27 on two sides thereof and each foot pedal rod 27 has a front end pivotably connected to a lower end of respective one of the two handles 26 and a rear end of each of the two foot pedal rods 27 is respectively connected to the transmission device 24. The two respective rear ends of the pedal rods 27 are located close to the periphery of the disks and symmetric to a center of the disks. In other words, if one of the two respective rear ends is located at the twelve o'clock position, the other rear end is located at the six o'clock position.
A foot pedal board 271 is provided on each of the two foot pedal rods 27 and includes a knurl surface so that the user will not slip on the foot pedal board 271. When the user's feet stand on the two foot pedal boards 271 and swings the two handles 26 alternatively, the foot pedal rods 27 move along in an elliptical trace.
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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 base putting on the floor;
- a body having a casing and a transmission device connected to a rear end there of the body and exposed outside the casing, the transmission device being operated as circular movement;
- an upright post including an upper tube and a lower tube in which the upper tube retractably inserted for adjusting the height, the lower end of the lower tube fixed to the base;
- two handles respectively pivotably connected to two sides of the upper tube at two respective mediate portions of the two handles, and
- two foot pedal rods each having a front end pivotably connected to a lower end of respective one of the two handles and a rear end of each of the two foot pedal rods respectively connected to the transmission device, a foot pedal board provided on each of the two foot pedal rods and moving along in an elliptical trace when the two handles are pivotably swung, positions of the elliptical trace being changed when the upper tube is adjusted relative to the lower tube.
2. The elliptical exerciser as claimed in claim 1, wherein a positioning device is connected to the upper tube or the lower tube so as to position the upper tube relative to the lower tube.
3. The elliptical exerciser as claimed in claim 2, wherein the positioning device includes a retractable pin connected to the lower tube and the upper tube includes a plurality of holes, the pin engaged with one of the holes in the upper tube.
4. The elliptical exerciser as claimed in claim 3, wherein a spring is mounted to the pin which is pulled outward and disengaged from the hole so that the upper tube is freely moved relative to the lower tube till the pin is engaged with another one of the holes in the upper tube.
5. The elliptical exerciser as claimed in claim 1, wherein the transmission device includes two disks which are connected at two respective centers thereof, the two rear ends of the two foot pedal rods respectively connected to the two disks.
6. The elliptical exerciser as claimed in claim 1, wherein the front end of each of the foot pedal rods tilts upward when the upper tube is extended upward.
7. The elliptical exerciser as claimed in claim 1, wherein the front end of each of the foot pedal rods tilts downward when the upper tube is retracted into the lower tube.
8. The elliptical exerciser as claimed in claim 1, wherein the base includes two transverse bars connected to two ends thereof.
9. The elliptical exerciser as claimed in claim 1, the upper tube includes two extension rods and the two respective mediate portions of the two handles are connected to the two extension rods.
Type: Application
Filed: Jun 25, 2004
Publication Date: Dec 29, 2005
Inventor: Chung-Chin Yang (Taoyuan-City)
Application Number: 10/875,171