Patent Application
20070142182
The present invention relates to a twisting device for a climbing exerciser and the twisting device operates smoothly while pivoting the two pedals alternatively.
A conventional climbing exerciser with a twisting device is shown in
The present invention relates to a climbing exerciser which comprises a base having a post and a cylindrical tube extending therefrom. A rotatable member is rotatably mounted to the cylindrical tube and a handlebar stem is fixed to the rotatable member. The rotatable member has two flanges with a gap defined therebetween. Two pedal assemblies are pivotably connected to two sides of the post and cooperated with two cylinders. Each pedal assembly has a pedal and a connection plate which is connected between the two flanges of the rotatable member. The handlebar stem is located between the two connection plates so that when the two pedal assemblies are alternatively operated, the two connection plates drive the rotatable member to let the handlebar stem twist.
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 climbing exerciser of the present invention comprises an I-shaped base 10 which includes a center bar 12 and two transverse bars 11 connected to two ends of the center bar 12. A post 13 and a cylindrical tube 21 extend from a top of the center bar 12, the cylindrical tube 21 is located beside the post 13. Two rods 130 extend from two opposite sides of the post 13 at an angle so as to be connected with two pedal assemblies. Two cylinders 33 each have a first end thereof pivotably connected to the base 10. A first sleeve 22 is mounted to the cylindrical tube 21.
A rotatable assembly 20 includes a rotatable member 23 which is rotatably mounted to the cylindrical tube 21 by a bolt 231 and a second sleeve 26 is received in a tubular portion of the rotatable member 23. The rotatable member 23 has two flanges 24 with a gap defined therebetween. A connection tube 27 is mounted onto the tubular portion of the rotatable member 23 and is fixed to one of the flanges 24 by two bolts 242.
A handlebar assembly 40 includes a handlebar stem 41 which is fixedly mounted to an outer periphery of the connection tube 27 and a plurality of positioning bolts 42 extend through the handlebar stem 41 and the connection tube 27 to position the handlebar stem 41 to the connection tube 27. A handlebar 411 is connected to the handlebar stem 41 and two protrusions 4112 are rotatably connected on a top of the handlebar 411.
The two pedal assemblies each include a mounting tube 32 which is rotatably mounted to the rod 130 corresponding thereto. A pedal 30 and an extension tube respectively extend from the mounting tube 32 in different directions. A connection bolt 31 is connected to a distal end of the extension tube and a first end of a connection plate 25 is fixed to the connection bolt 31 by a bolt and nut assembly 311. A second end of the connection plate 25 has a hole, and the two bolts 241 extend through the two flanges 24 and the two holes in the two respective connection plates 25. The handlebar stem 41 is located between the two connection plates 25. The two pedal assemblies respectively connected to two respective second ends of the two cylinders 33.
A case 50 is mounted onto the base 10 and hides the post 13 and the cylindrical tube 21 therein.
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.
