Folding collapsible treadmill having positioning apparatus

• US 20030216226A1
• Filed: 05/16/2002
• Published: 11/20/2003
• Est. Priority Date: 05/16/2002
• Status: Active Grant

• Current Assignee: Chang Shu Chen
• Original Assignee: Chang Shu Chen
• Inventors: Chen, Chang Shu
• Granted Patent: US 6,913,562 B2
• Time in Patent Office: Days
• US Class Current: 482/54
• CPC Class Codes: A63B 22/02 with movable endless bands , e.g. treadmills other training appliances for running on the spot A63B69/0028
• CPC Class Codes: A63B 22/0235 driven by a motor
• CPC Class Codes: A63B 2210/50 Size reducing arrangements for stowing or transport

Abstract

A folding collapsible treadmill includes base, a treadmill platform, the treadmill having a front side pivoted the base for enabling the treadmill platform to be turned relative to the base between a horizontal operative position and a vertical non-operative position, and a positioning apparatus installed adapted for locking the treadmill platform in the vertical non-operative position, the positioning apparatus including a stop member mounted in the treadmill platform, and a lever pivoted to one side of the treadmill platform and adapted for turning the movable stop member between a first position where the stop member is forced into engagement with the base to lock the treadmill platform in the vertical non-operative position, and a second position where the stop member is disengaged from the base for enabling the treadmill platform to be turned between the vertical non-operative position and the horizontal operative position.

Claims

1. A folding collapsible treadmill comprising:

a base adapted for positioning on a flat surface, said base having two sidebars arranged in parallel at two sides;

a treadmill platform, said treadmill having a front side and a rear side, the front side of said treadmill platform being pivoted to a front side of said base for enabling said treadmill platform to be turned relative to said base between a horizontal operative position and a vertical non-operative position; and

a positioning apparatus installed in said treadmill platform and adapted for locking said treadmill platform in said vertical non-operative position, said positioning apparatus having a movable stop member mounted in said treadmill platform, and a lever pivoted to one side of said treadmill platform and adapted for turning said movable stop member between a first position where said movable stop member is forced into engagement with a part of said base to lock said treadmill platform in said vertical non-operative position, and a second position where said movable stop member is disengaged from said base for enabling said treadmill platform to be turned relative to said base between said vertical non-operative position and said horizontal operative position.

2. The folding collapsible treadmill as claimed in claim 1, wherein said positioning apparatus further comprises a connecting member connected between said stop member and said lever.

3. The folding collapsible treadmill as claimed in claim 2, wherein said lever is pivoted to said treadmill platform near a rear side of said treadmill platform and turned to pull said connecting member and to further move said stop member from said first position to said second position.

4. The folding collapsible treadmill as claimed in claim 3, wherein said lever comprises a circular base and a handle extended from said circular base;

said connecting member is a steel rope having one end wound round said circular base of said lever and fixedly connected to a part of said circular base and an opposite end connected to a rear end of said stop member.

5. The folding collapsible treadmill as claimed in claim 1, wherein said treadmill platform comprises two frame tubes longitudinally disposed at two sides and arranged in parallel, one of said frame tubes comprising a bottom lug disposed near a rear side thereof and adapted for supporting said lever and an inside guide block fixedly disposed near a front side thereof, said guide block having an elongated axle hole adapted for guiding movement of said stop member between said first position and said second position;

said stop member is a latch inserted through said axle hole of said guide member for axial movement along said axle hole between said first position and said second position.

6. The folding collapsible treadmill as claimed in claim 5, wherein said base comprises a stepped stop portion formed in one sidebar thereof and adapted for stopping said stop member in said first position.

7. The folding collapsible treadmill as claimed in claim 5, wherein the frame tube of said treadmill platform in which said lever is installed comprises a locating plate fixedly provided on the inside near the front side thereof, said locating plate having a center through hole and two screw holes equally spaced from said center through hole at two opposite sides;

said guide block has two mounting holes respectively fixedly fastened to the screw holes by a respective screw bolt;

said stop member is mounted with a spring, having a flange extended around the periphery and stopped at one side of said guide block outside said axle hole, said spring being mounted on said stop member between the flange of said stop member and said locating plate to support said stop member in said second position.