Resistance adjustable exercise device

• US 20050209071A1
• Filed: 03/09/2004
• Published: 09/22/2005
• Est. Priority Date: 03/09/2004
• Status: Active Grant

• Current Assignee: Chang-I Lin, Kung-Tai Liang
• Original Assignee: Chang-I Lin, Kung-Tai Liang
• Inventors: Lin, Chang-I, Liang, Kung-Tai
• Granted Patent: US 7,229,393 B2
• Time in Patent Office: Days
• US Class Current: 482/123
• CPC Class Codes: A63B 21/026 Bars; Tubes; Leaf springs A63B21/023 takes precedence

Abstract

A flexible stick of a bow exercise device includes a base and a top cap, and a first and second flexible plates are connected between the base and the top cap. Two ends of the first flexible plate are respectively connected to the base and the top cap. A first end of the second flexible plate is connected to the base and a second end of the second flexible plate is movably inserted in a slot defined in the top cap. A gap is defined between the first and second flexible plates when the stick is not bent. The top cap can be removed from the two flexible plates and the second flexible plate can be replaced with another one with different flexibility.

Claims

1. A bow exercise device comprising:

a frame;

at least one stick comprising a base connected to the frame and two respective first ends of a first flexible plate and a second flexible plate respectively inserted into the base;

a top cap, a second end of the first flexible plate removably connected to the top cap, a second end of the second flexible plate removably inserted in a slot defined in the top cap, the top cap having a lug, and

a pull member connected to the lug.

2. The device as claimed in claim 1, wherein a gap is defined between the first flexible plate and the second flexible plate when the at least one stick is not bent.

3. The device as claimed in claim 1, wherein the slot in the top cap has a space not occupied by the second end of the second flexible plate when the stick is not bent.

4. The device as claimed in claim 1, wherein the top cap includes a through passage, a third flexible plate extending through the through passage and having one end thereof inserted in the insertion hole in the base, the other end of the third flexible plate being located in the through passage.

5. The device as claimed in claim 1, wherein the second flexible plate is shorter than the first flexible plate.