GB1294204A - Ground anchor - Google Patents

Abstract

1294204 Ground anchors H WATANABE and S GENMA 10 Sept 1970 [10 Nov 1969 2 June 1970 17 June 1970] 43452/70 Heading E1B A ground anchor comprises a bendable resisting plate 41, a rod 43 pivotally attached by plate 42 to the leading edge, an auxiliary rod 45 connected at the opposite end at 53 and a combining ring 56 through which the auxiliary rod passes and is prevented from leaving by a hook 57. The plate is held rigid during driving by a regulating rod 65 projecting from the lower end of a driving pipe 61 which engages a receiver 51 on the resisting plate, the regulating rod then passing through spaced tubular reinforcement members 46 a, b, c, d which have inclined faces which will limit the bending of the plate when the regulating rod is removed. The regulating rod transmits the drive, to a closure plate at the lower end of the lowest reinforcement, from a reciprocable impelling rod 70 which has a grooved lower portion to allow it to pass over a drawing out rod 66 for the regulating rod. After the regulating rod is removed the rod 71 strikes against portion 62 of the driving pipe and the drive is transmitted to the upper edge of the resisting plate which gradually moves to the position shown in Fig. 10. Finally the pipe is withdrawn. In a second and third embodiment the rods 43 and 45 are additionally coupled just above the plate 42 and the driving tool is reversed when the regulating rod is removed and also is used to pull out the pipe 61. Additionally in the third embodiment the driving pipe has a pivotable lower extension which replaces the receiving sleeve 51 and grips the upper edge of the resisting plate and also follows an arcuate line when the regulating rod is removed.