Patent Application
20060105886
The present invention relates to an exerciser which can be used as either an climbing exerciser or a treadmill.
A conventional exerciser such as a treadmill generally includes a tread board with a driving shaft which is driven by a motor and a board which includes a roller, an endless belt reeves through the driving shaft and the roller so that the endless belt moves at desired speed and users exercise on the endless belt. The treadmill exercises a certain part of the muscles. Another type of exerciser such as a climbing exerciser, includes two pivotable pedals which can be pivoted up and down with a pre-determined resistance. The climbing exerciser exercises some other part of muscles. Although the two functions are welcomed by the users, they are two different and bulky exercisers, and the users cannot afford to own the two different exercisers.
The present invention intends to provide an exerciser that includes two different molds of use and the shaft that the two pedals are pivotable about and the shaft that the tread board is connected are two individual shafts so that the two shafts have longer life of use.
The present invention relates to an exerciser that comprises a frame having a front bar, a middle bar and a rear bar connected between two sides of the frame. Two sets of swing devices are connected to the middle bar and a driving shaft is connected between two supports and driven by a motor. Two operation members each have a roller connected to a front end thereof and an inner rail and an outer rail. A central member extends from a middle of the rear bar. Each operation member has the outer rail pivotably connected to the respective one of the two supports and the inner rail pivotably connected to the central member. Two endless belts are respectively reeve through the rollers of the two operation members and the driving shaft. The two swing devices are respectively connected to two respective undersides of the two operation members.
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 FIGS. 1 to 4, the exerciser “A” of the present invention comprises a rectangular frame 30 having a front bar 31, a middle bar 32 and a rear bar 33 connected between two sides of the frame 30. Two front wheels 65 are connected to two respective undersides of front ends of the two sides of the frame 30 and a rear wheel mechanism is connected to the rear bar 33 so that the exerciser can be easily moved. Two sets of swing devices 50 are connected to a connection portion 51 pivotably connected on the middle bar 32. Two links 52 are connected to each of two ends of the connection portion 51 and two L-shaped members 53 are pivotably connected to two operation members 10 which are described later, so that the two operation members 10 can be operated as a climbing exerciser. A driving shaft 35 driven by a motor “C” has two idle wheels 36 connected to two ends thereof and an axle 351 is supported and engaged with two notches 341 in two supports 34 connected on the two sides of the rear end of the frame 30. The two supports 34 each have a first hole 342. Two posts 20 are connected on outside of the two sides of the frame 30 and a handle (not shown) can be connected between the two posts 20.
The two operation members 10 each have a roller connected to a front end thereof and an inner rail 13 and an outer rail 11. The two respective outer rail 13 of the two operation members 10 each have a second hole 111 and the two outer rails 11 of each operation member 10 are pivotably connected to the two supports 24 by extending a pin through the alignment first and second holes 342, 111. The inner rail 13 is pivotably connected to the central member 37 by extending a pin 372 through the holes 131 in the two inner rails 13 and the holes 371 in the central member 37 extending from a middle of the rear bar 33. Two endless belts “B” respectively reeve through the rollers of the two operation members 10 and the driving shaft 35. The two swing devices 50 are respectively connected to two respective undersides of the two operation members 10. Two cylinders 21 are retractably between the two operation members 10 and the two rails of the frame 30. Two plates 14 are respectively connected to two inside rails 13 of the two operation members 10 and one of the plates 14 includes an L-shaped member 15 and a bearing 16 is connected to the L-shaped member 15 so as to provide buffer and support function to the operation members 10 to avoid tilt of the operation members 10.
A U-shaped member 40 is pivotably connected to the front bar 31 and includes two extensions and a transverse bar 46 is connected between the two extensions. A plurality of positioning holes are defined in the two extensions of the U-shaped member 40. A pad 421 is connected on each of the two extensions. Two sets of positioning devices are connected to the front bar 31 and each have a pin 44 which is pivotably connected to a lever 43. The two pins 44 respectively extend through two respective retaining members 41 and one of the positioning holes of the U-shaped member 40. By pivoting the levers 43, the pins 44 can be engaged with another positioning holes of the U-shaped member 40. Two springs 45 are mounted to the two pins 44 and located in the retaining members 41 so as to push the two pins 44 toward another positioning holes in the two extensions of the U-shaped member 40.
As shown in
When the exerciser “A” is used as a climbing exerciser as shown in
Further referring to
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.
