Patent Application
20090049950
The present invention relates to a pedal adjustable device for elliptical exercisers and the angle of the pedals can be easily adjusted by pulling a handle.
A conventional pedal adjustable device for exercisers such as an elliptical exerciser, is shown in
The present invention intends to provide a pedal adjustable device for elliptical exerciser and the device includes a handle which does not need to be pulled out from the parts of the exerciser and can be easily set at desired position.
The present invention relates to a pedal adjustable device and comprises a case fixed to an end of a link and a first member and a second member are connected between two sidewalls of the case respectively. The first part includes a polygonal hole and the second part includes a circular hole, the polygonal hole is larger than the circular hole. A support plate has a first end pivotably connected to the case and an extension extends from an underside of a second end of the support plate. The extension includes an elongate hole defined axially therethrough and a plurality pairs of protrusions extend from two insides of the elongate hole so as to define a space between each pair of the protrusion. The extension is located between the first and second members and a pedal is fixed on the support plate. An operation member has a handle and a shank connected to the handle. The shank includes a polygonal section which has one end connected to the handle and a circular rod is connected to the other end of the polygonal section. The circular rod extends through the polygonal hole, the elongate slot and the circular hole. The polygonal section is engaged with the polygonal hole, the space between each pair of the protrusion is larger than the circular rod and smaller than the polygonal section.
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
A support plate 4 has two lugs 41 extending from a first end thereof and the two lugs 41 are located on two ends of the tube 32, a pin 42 extends through the two lugs 41 and the tube 32 such that the support plate 4 is pivotably connected to the case 3. An extension 43 extends from an underside of a second end of the support plate 4 and includes an elongate hole 44 defined axially therethrough. A plurality pairs of protrusions 45 extend from two insides of the elongate hole 44 so as to define a space between each pair of the protrusion 45. The extension 43 is located between the first and second members 33, 34. A pedal 5 is fixed on the support plate 4.
An operation member 6 has a handle 62 and a shank connected to the handle 62. The shank includes a polygonal section 61 which has one end connected to the handle 62 and a circular rod 63 is connected to the other end of the polygonal section 61. The circular rod 63 extends through the polygonal hole 331, the elongate slot 44 and the circular hole 341. A spring 65 is mounted to the circular rod 63 and biased between a restriction ring 64 connected to the circular rod 63 and the polygonal section 61. A ring 66 is mounted to the shank and located between the handle 62 and the polygonal section 61. The polygonal section 61 is engaged with the polygonal hole 331, the space between each pair of the protrusion 45 is larger than the circular rod 63 and smaller than the polygonal section 61 so that the polygonal section 61 cannot pass through the space between the protrusions 45 and the angle of the pedal 5 relative to the case 31 can be determined.
When adjusting the pedal 5, the user holes the handle 62 and pulls the operation member 6 to compress the spring 65 until the polygonal section 61 is disengaged from the elongate hole 44 in the extension 43, the circular rod 63 can be freely moved through the spaces between the protrusions 45. The pedal 5 together with the support plate 4 are pivoted to a desired angle, the operation member 6 is released to let the polygonal section 61 is engaged with the elongate hole 44 again to set the angular position of the pedal 5. Because the polygonal section 61 cannot pass through the spaces between the protrusions 45 so that the position of the pedal 5 is set.
The user needs not to align the operation member 6 with the circular hole 341, the polygonal hole 331 and the elongate hole 44 during adjusting the pedal 5.
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.
