Folding mechanism for a handrail frame assembly of a treadmill

• US 20090111666A1
• Filed: 10/31/2007
• Published: 04/30/2009
• Est. Priority Date: 10/31/2007
• Status: Abandoned Application

• Current Assignee: Leao Wang
• Original Assignee: Leao Wang
• Inventors: Wang, Leao
• Application Number:
  US11/980,054
• Publication Number:
  US 20090111666A1
• Time in Patent Office: Days
• US Class Current: 482/54
• CPC Class Codes: A63B 2071/025 on rollers or wheels
• 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 mechanism for a handrail frame assembly of a treadmill having a coupling cross shaft with a rotational disc at each side thereof for pivotally coupling to the hollow handrail frame assembly. A pull rod is received within the handrail frame assembly. In this way, two handles and a console support at the top end of the handrail frame assembly move by use of the corresponding action of the pull rod toward each other or away from each other in position when the handrail frame assembly is folded in a storage position or moved in an upright position.

Claims

1. A folding mechanism for a handrail frame assembly of a treadmill having a platform frame with a transmission motor at one side thereof for driving a continuous moving belt into rotation by use of a transmission belt, a front roller, and a rear roller, a lifting motor being employed to move an adjusting support upward and downward, a through pivot being disposed at the bottom of the platform frame for a pivotal connection with the handrail frame assembly,

wherein a coupling cross shaft with a rotational disc at each side thereof is employed to pivotally coupled to the hollow handrail frame assembly, and wherein a pull rod is received within the handrail frame assembly;

whereby two handles and a console support at the top end of the handrail frame assembly move by use of the corresponding action of the pull rod toward each other or away from each other in position when the handrail frame assembly is folded in a storage position or moved in an upright position,

wherein a pneumatic cylinder is pivotally mounted on a strengthening bar in the middle of the platform frame while the other end of the pneumatic cylinder is connected with a push element configured to constantly apply both a pushing force to assist a manual folding process and continued pressure on the coupling cross shaft after folding to keep the handrail frame assembly from unwanted unfolding.

2. (canceled)

3. A folding mechanism for a handrail frame assembly of a treadmill having a platform frame with a transmission motor at one side thereof for driving a continuous moving belt into rotation by use of a transmission belt, a front roller, and a rear roller, a lifting motor being employed to move an adjusting support upward and downward, a through pivot being disposed at the bottom of the platform frame for a pivotal connection with the handrail frame assembly,

wherein a coupling cross shaft with a rotational disc at each side thereof is positioned at the bottom of the front side of the platform frame and employed to pivotally coupled to the hollow handrail frame assembly, and wherein the top end of the handrail frame assembly is provided with a receiving seat receiving seat;

wherein a pull rod is received within the handrail frame assembly such that the top end of the pull rod is pivotally connected to a first transmission gear pivotally disposed within the receiving seat;

wherein the other end of the pull rod is fixed by a positioning pin extending from the platform frame and passing through an annular groove of the rotational disc, and wherein a second transmission gear coupled with a console support is pivotally attached to the receiving seat while two handles and the first transmission gear are coaxially mounted to the opposing external sides of the receiving seat,

wherein a pneumatic cylinder is pivotally mounted on a strengthening bar in the middle of the platform frame while the other end of the pneumatic cylinder is connected with a push element configured to constantly apply both a pushing force to assist a manual folding process and continued pressure on the coupling cross shaft after folding to keep the handrail frame assembly from unwanted unfolding.

4. (canceled)