The method of making ground anchors

The method of making ground anchors:

The invention relates to a flat or winged earth or ground anchor that is pushed into the formation along the length and then, when it reaches an optimum depth, is pulled and tilted into a flat lateral position for anchoring a towline pole, cable or similar.

The ground anchor comprises a tubular central body part, a pair of wings radially extending transversally from the body part and a cross-shaped star tip at the front of the body, which includes sharp front blades and operates like a star drill to penetrate the soil. A tie rod is attached to the eye portion of the body portion of the anchor, and the end of the anchor is sharp and includes a curved projection that extends to facilitate the anchor's tilt. In use, a drive rod is inserted into the shaft sleeve at the end of the body section. The drive rod is used to drive the anchor to an optimal depth in the formation. A pull rod is then used to pull the cable hole portion of the anchor so that the anchor tilts underground and is essentially horizontal to the hole in the ground.

The prior art also provides a device for balancing the cross section shape of the anchor so that the anchor can enter the formation along a straight propulsion path even if an unstable obstacle is present, which is also an improvement in this area of technology. It is also an improvement to provide components to facilitate the anchorage's tilt in the formation. A part that reduces the impact force on the connection between the anchor and the pull part is also a beneficial improvement. An important aspect of the invention is the provision of a ground anchor, which represents an improvement on the ground anchor revealed in Patent 4,802,317 and includes devices for facilitating the passage of the ground anchor through the strata. In the present invention, this is accomplished by providing a cross-shaped star-shaped tip with a number of sharp front blades staggered longitudinally to each other in front of the ground anchor. In general, the sides of each cross star tip include a first front front edge and a second back front edge, and the distance that the second or rear front edge extends laterally from the body part is greater than the distance that the first or front front edge extends laterally from the body part. A staggered or stepped front edge facilitates penetration of hard soil by first pushing the smaller front edge that helps to cut and break the hard soil forward, thus facilitating passage of the rear and larger front edges. The anchor also includes a pair of wings radially extending laterally from the body part with front and rear blades. The front edge of each wing is divided into a number of sharp front wing edges that project a greater distance outward from the body part in sequence, and in use, each front wing blade cuts through the soil in turn, gradually increasing. The smaller, front-most front blade cuts through the formation easily, making it easier for the subsequent, larger wing blade to cut through the formation. Another important aspect in this regard is the provision of ground anchors in which the wing is reduced in thickness and tapered in order to reduce the wing thickness between the front edge and the tail edge.