Patent ID: 6595526
Filing Date: 2003-07-22
Classification: A01B

Abstract:
A two wheeled, height adjustable cart for pulling farm implements, comprising:a pair of main frame members with each main frame member secured to each wheel axle and extending upwardly therefrom; a pair of intermediate frame members with each intermediate frame member slidably mounted on each respective main frame member and joined together by a connecting cross member so that the intermediate members can slide in unison on the main frame members between an elevated position and a lowermost position; a pair of upper sprockets with each upper sprocket mounted at the upper end of each respective main frame member; a pair of lower sprockets with each lower sprocket mounted to the respective wheel axles adjacent the lower end of each main frame member; two pairs of intermediate idler sprockets with one pair mounted to each intermediate frame member and at least one intermediate idler sprocket from each pair having a locking disposition that restricts the rotation of that intermediate idler sprocket; a pair of continuous chains with each continuous chain entrained on one set of upper and lower sprockets and one pair of intermediate idler sprockets and the chains being driven by the rotation of the wheels; a brake pedal for engaging and locking at least one intermediate idler sprocket from each pair of intermediate idler sprockets for restricting the free rotation of those intermediate idler sprockets; a pair of locking and releasing pins for locking each intermediate frame member to each main frame member when each intermediate frame member is moved to the elevated position and for releasing each intermediate frame member so that the intermediate frame members can descend on the main frame members to the lowermost position; and a pin releasing pedal interconnected to the locking and releasing pins so that depression of the pin releasing pedal causes the pins to retract from the intermediate frame members and the main frame members thus allowing the intermediate frame members to slide on the main frame members for disposition to the lowermost position.