Abstract: A foldable hay rake has two rake arms comprised of first and second rake arm structures with rake wheels thereon pivotally secured to a base frame to pivot in a vertical plane. A center rake arm structure is pivotally associated with the base frame with a center rake arm frame located adjacent a rearward end of the base frame between the first and second rake arm structures. At least one of the hay rake wheels has a plurality of teeth extending therefrom with a tooth spacing between adjacent teeth of less than five inches and an outer diameter greater than 60 inches. A castor wheel is pivotally attached to the outer end of the main support frame, with an axle dampener operationally associated with the castor wheel to dampen wobbling of the castor wheel.

Abstract: A foldable hay rake has two rake arms comprised of two or more arm members with rake wheels thereon. The hay rake arms are pivotally secured together to a pivot assembly to pivot in a vertical plane. The pivot assembly is pivotally secured for pivoting in a horizontal plane to a vertical post having positioning wheels at a lower end. An upper end is pivotally secured to outer ends of wing arms comprised of parallelogram members which are pivotally secured to a central base frame, which has a power cylinder to pivot the wing arms in a horizontal plane.

Abstract: A foldable hay rake has two rake arms comprised of two or more arm members with rake wheels thereon. The hay rake arms are pivotally secured together to a pivot assembly to pivot in a vertical plane. The pivot assembly is pivotally secured for pivoting in a horizontal plane to a vertical post having positioning wheels at a lower end. An upper end is pivotally secured to outer ends of wing arms comprised of parallelogram members which are pivotally secured to a central base frame, which has a power cylinder to pivot the wing arms in a horizontal plane.

Abstract: The present invention is directed toward a device for raising or lowering the individual raking wheels on a foldable hay rake. On a foldable hay rake having a rake arm with a plurality of raking wheels, the device comprises a lift tube that is slidably mounted to the rake arm and is hingedly attached to the plurality of raking wheels. The device further comprises a hydraulic cylinder with a fixed end attached to the rake arm and an extendable cylinder rod attached to the forward end of the lift tube. As the cylinder rod operates, it pulls the lift tube from the forward end, thereby raising the raking wheels.