Mountable arm assembly for fitness equipment

A mountable arm assembly for fitness equipment, comprising:

• two arm members, each having an arm body with a plurality of assembly portions formed thereon in spaced arrangement such that each of the two arm members comprises a plurality of different tension arm lengths;
• and
• a connector, formed with a center-positioned pivot connection portion, and a plurality of eccentric positioning portions distributed at intervals around the center-positioned pivot connection portion;
• wherein the two arm members are pivotable relative to each other through the connector, so that an adjustable disposing angle is formed between the two arm members, and at least one of the two arm members sets the adjustable disposing angle through at least one of the plurality of eccentric positioning portions, through the center-positioned pivot connection portion, wherein the mountable arm assembly is configured to be mounted on the fitness equipment and can swing back and forth, and wherein for each of the two arm members, one assembly portion of the plurality of assembly portions corresponding to one of the plurality of different tension arm lengths is selectable such that an applied force and a resistance force can be respectively added to the two selected assembly portions;
• wherein said connector is made in a form of a rotary disc, said rotary disc comprises a disk body and a first disc cap, the center-positioned pivot connection portion and the plurality of eccentric positioning portions are all located on the disk body, and the first disc cap is formed with a first supporting portion and a first limiting portion;
• wherein the first supporting portion is located at a center of the first disc cap and corresponds to the center-positioned pivot connection portion for interconnecting the first supporting portion, the first disc cap, and the center-positioned pivot connection portion with each other, the first limiting portion is located on a periphery of the first supporting portion and can fit onto one of the plurality of eccentric positioning portions, so that the first disc cap can be configured on a rotary end face on one side of the disk body in a manner enabling selection of the adjustable disposing angle;
• and
• wherein one end of the two arm members is fixed on the disk body and the first disc cap, such that the two arm members are pivotable relative to each other through the disk body and the first disc cap with a specific disposing angle;
• wherein said connector further comprises a second disc cap, the second disc cap is formed with a second supporting portion and a second limiting portion, the second supporting portion is located at a center of the second disc cap and corresponds to the center-positioned pivot connection portion for interconnecting the second supporting portion, the second disc cap, and the center-positioned pivot connection portion with each other, the second limiting portion is located on a periphery of the second supporting portion and can fit upon one of the plurality of eccentric positioning portions, so that the second disc cap can be configured on a rotary end face on another side of the disk body in a manner enabling selection of a limiting point.