Shock absorbing apparatus and method for a vibratory pile driving machine
AssigneeAmerican Piledriving Equipment, Inc.
InventorJohn L. White
Life of this patent
Estimating the term…
Abstract
The specification discloses an apparatus for driving and/or pulling a pile which basically comprises vibratory device, a pulling device, a plurality of shock absorbing members, and shock connecting apparatus. The vibratory device generates a vibratory force and applies this force to the pile. The pulling device applies a tension load to a carrying member. The shock connecting apparatus is operatively connected to the carrying member, the shock absorbing members, and the vibratory device. The shock connecting apparatus so selectively connects each of the plurality of shock absorbing members between the vibratory device and the pulling device that the total shock absorbing capacity of the apparatus is incrementally increased as the tension load applied to the carrying member increases.
Claims11
A shock absorbing apparatus adapted to be connected between a pile driving and/or pile pulling vibratory device which generates a vibratory force and imparts the vibratory force to a pile and a carrying member for supporting the vibratory device, comprising:
- a. a base section adapted to be connected to one of the carrying member and the vibratory device;
- b. a connecting section adapted to be connected to the other of the carrying member and the vibratory device, where tension loads are applied to the carrying member which causes a relative displacement between the connecting section and the base section;
- c. first shock absorbing means connected between the base section and the connecting section for absorbing the vibratory device generated by the vibratory device;
- d. second shock absorbing means connected between the base section and the connecting section above a first predetermined load for absorbing the vibratory force generated by the vibrating device;
- e. third shock absorbing means connected between the base section and the connecting section above a second predetermined tension load for absorbing the vibratory force generated by the vibrating device;
- and
- f. stop means for so limiting relative movement between the base section and the connecting section that, under a third predetermined load, the intermediate and connecting sections come into essentially rigid contact with each other.
A shock absorbing apparatus adapted to be connected between a pile driving and/or pile pulling vibratory device which generates a vibratory force and imparts the vibratory force to a pile and a pulling means for applying a tension load to a carrying member, the shock absorbing apparatus comprising:
- a. a base section adapted to be connected to the vibratory device;
- b. a connecting section adapted to be connected to the carrying member;
- c. a plurality of shock absorbing means for absorbing vibratory force, where a predetermined tension load is associated with each of the plurality of shock absorbing means;
- and
- d. means for so connecting each of the shock absorbing means between the base section and the connecting section at the predetermined tension loads associated with the shock absorbing means that
- i. below a given tension load on the connecting section, at least one of the plurality of shock absorbing means is effective to absorb the vibratory force, and
- ii. above the given tension load on the connecting section, additional of the shock absorbing means are effective to absorb the vibratory force,
Dependencies are inferred from the claim text.