Counterweight exercise machine

• US 7,011,609 B1
• Filed: 02/07/2005
• Issued: 03/14/2006
• Est. Priority Date: 02/07/2005
• Status: Expired due to Fees

• Current Assignee: Hai Pin Kuo
• Original Assignee: Hai Pin Kuo
• Inventors: Kuo, Hai Pin
• Primary Examiner(s): Donnelly, Jerome W.
• Assistant Examiner(s): HWANG, VICTOR KENNY
• Application Number:
  US11/051,914
• Time in Patent Office: 400 Days
• Field of Search: 482 92- 94, 482 98-103
• US Class Current: 482/94
• CPC Class Codes: A63B 21/0628 for vertical array of weights
• CPC Class Codes: A63B 21/063 Weight selecting means

Abstract

A counterweight exercise machine has a frame. The frame comprises two main guide rods; two sub-guide rods; a passive rod parallel to the two main guide rods; at least one main weight; a selector; a base having a lower substrate and an upper substrate; and two sleeves connected to the lower substrate and the upper substrate; at least one pin capable of passing through the round holes of the front sheet and the rear sheet and the passive rod; and at least one sub-weight. By above mentioned components, the selector serves to lock a predetermined number of main weights and the pin inserts into the sub-weight so as to increase the total weight. A force applied unit serves to drive the passive rod to drive the main weight and the sub-weight to operate along the main guide rods and sub-guide rods to achieve the object of training the muscle.

Claims

1. A counterweight exercise machine having a frame capable of standing on a floor steadily;

the frame comprising;

two main guide rods;

two sub-guide rods;

a passive rod parallel to the two main guide rods;

at least one main weight having a predetermined weight;

the main weight being installed to the two main guide rods;

a selector capable of being inserted into two adjacent main weights and to be engaged to the passive rod;

a base having a lower substrate and an upper substrate; and

two sleeves connected to the lower substrate and the upper substrate;

the two sleeves enclosing the two main guide rods;

the base being engaged to the passive rod to be as an integral body;

the lower substrate having a front sheet and a rear sheet;

each of the front sheet and rear sheet having at least one round hole;

at least one pin capable of passing through the round holes of the front sheet and the rear sheet and the passive rod;

at least one sub-weight having a weight smaller than that of the main weight;

two opposite sides of the sub-weight having vertically penetrating round holes so as to be engaged to the two sub-guide rods vertically;

a center of the sub-weight having a via hole for receiving one end of the pin;

wherein by above mentioned components, the selector serves to lock a predetermined number of main weights and the pin inserts into the sub-weight so as to increase the total weight;

a force applied unit serves to drive the passive rod so as to drive the main weight and the sub-weight to operate along the main guide rods and sub-guide rods to achieve the object of training.

2. The counterweight exercise machine as claimed in claim 1, wherein each pin has two magnetic seats which are spaced with a predetermined distance;

the two magnetic seats are located at two lateral sides of the front sheet;

when the sub-weight is locked or unlocked, the front sheet is absorbed so that the pin will not release.

3. The counterweight exercise machine as claimed in claim 1, wherein an upper end of the via hole of the sub-weight has a notch for pushing away the end of the pin to prevent the pin from being cut.