IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0077664
(2011-03-31)
|
등록번호 |
US-8434969
(2013-05-07)
|
발명자
/ 주소 |
|
출원인 / 주소 |
- American Piledriving Equipment, Inc.
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
3 인용 특허 :
151 |
초록
▼
A clamp system includes a frame, a plurality of clamp members, an actuator collar, and an actuator system. The frame includes an attachment member and a stop ring defining a stop cam surface. The clamp members each define first and second cam surfaces. The actuator collar defines an actuator cam sur
A clamp system includes a frame, a plurality of clamp members, an actuator collar, and an actuator system. The frame includes an attachment member and a stop ring defining a stop cam surface. The clamp members each define first and second cam surfaces. The actuator collar defines an actuator cam surface. The actuator system displaces the actuator collar. The frame supports the actuator collar and the plurality of clamp members such that the first cam surfaces engage the actuator cam surface and the second cam surfaces engage the stop cam surface. Operation of the actuator system displaces the actuator collar towards the stop ring. As the actuator collar moves towards the stop ring, the actuator cam surface acts on the first cam surfaces and the stop cam surface acts on the second cam surfaces such that the clamp members place the clamp system in an engaged configuration.
대표청구항
▼
1. A clamp system for connecting a vibratory system defining a drive axis to a pile defining a pile inner surface, the clamp system comprising: a frame comprising an attachment member adapted to be operatively connected to the vibratory system, anda stop ring defining a stop cam surface;a plurality
1. A clamp system for connecting a vibratory system defining a drive axis to a pile defining a pile inner surface, the clamp system comprising: a frame comprising an attachment member adapted to be operatively connected to the vibratory system, anda stop ring defining a stop cam surface;a plurality of clamp members defining first and second cam surfaces;an actuator collar defining an actuator cam surface;an actuator system for displacing the actuator collar; wherebythe frame supports the actuator collar and the plurality of clamp members such that the first cam surfaces engage the actuator cam surface and the second cam surfaces engage the stop cam surface;operation of the actuator system displaces the actuator collar towards the stop ring;as the actuator collar moves towards the stop ring, the actuator cam surface acts on the first cam surfaces and the stop cam surface acts on the second cam surfaces such that the clamp members are displaced away from the drive axis to place the clamp system in an engaged configuration; andthe clamp members are adapted frictionally to engage the pile inner surface when the clamp system is in the engaged configuration. 2. A clamp system as recited in claim 1, further comprising at least one return spring, where the at least one return spring is arranged to bias one of the clamp members towards the drive axis. 3. A clamp system as recited in claim 1, further comprising at least one retaining bolt, where the at least one retaining bolt is arranged to secure one of the clamp members relative to the frame. 4. A clamp system as recited in claim 3, further comprising at least one slot formed in each clamp member, where the at least one retaining bolt extends through the at least one slot to allow movement of the clamp member along the drive axis. 5. A clamp system as recited in claim 1, further comprising: first and second retaining bolts, where the first and second retaining bolts are arranged to secure each of the clamp members relative to the frame; andfirst and second slots formed in each clamp member, where the first and second retaining bolts extend through the first and second slots, respectively, to allow movement of the clamp members along the drive axis. 6. A clamp system as recited in claim 1, in which the actuator system comprises a plurality of actuators. 7. A clamp system as recited in claim 1, in which: the actuator system comprises at least one actuator member comprising a cylinder and a shaft;the cylinder is rotatably secured to a portion of the frame;the shaft is rotatably secured to a portion of the actuator collar; andenergizing the actuator members in a first mode extends the shaft from the cylinder to displace the actuator collar towards the stop ring. 8. A clamp system as recited in claim 1, in which the frame comprises a center member for fixing a distance between the stop ring and the attachment member. 9. A clamp system as recited in claim 1, in which the frame further comprises a guide member defining slanted guide surfaces. 10. A clamp system as recited in claim 1, in which: the actuator system comprises actuator member for each clamp member, where each actuator member comprises a cylinder and a shaft;the cylinders are rotatably secured to a portion of the frame;the shafts are rotatably secured to a portion of the actuator collar; andenergizing the actuator members in a first mode extends the shaft from the cylinder to displace the actuator collar towards the stop ring. 11. A method of connecting a vibratory system defining a drive axis to a pile defining a pile inner surface, the method comprising the steps of: providing a frame comprising an attachment member adapted to be operatively connected to the vibratory system, anda stop ring defining a stop cam surface;providing a plurality of clamp members each defining first and second cam surfaces;arranging an actuator collar defining an actuator cam surface such that the actuator cam surface engages the first cam surfaces defined by the plurality of clamp members;arranging the plurality of clamp members relative to the frame such that the stop cam surface defined by the stop ring engages the second cam surfaces;providing an actuator system for displacing the actuator collar; andoperating the actuator system to displace the actuator collar towards the stop ring such that the actuator cam surface acts on the first cam surfaces and the stop cam surface acts on the second cam surfaces to displace the clamp members away from the drive axis to place the clamp system in an engaged configuration in which the clamp members are adapted frictionally to engage the pile inner surface. 12. A method as recited in claim 11, further comprising the step of arranging at least one return spring to bias one of the clamp members towards the drive axis. 13. A method as recited in claim 11, further comprising the step of arranging at least one retaining bolt to secure one of the clamp members relative to the frame. 14. A method as recited in claim 13, further comprising the steps of: forming at least one slot formed in each clamp member; andextending the at least one retaining bolt through the at least one slot to allow movement of the clamp member along the drive axis. 15. A method as recited in claim 11, further comprising the steps of: forming first and second slots in each clamp member; andarranging first and second retaining bolts so that the first and second retaining bolts extend through the first and second slots, respectively, to limit movement of the clamp members along the drive axis relative to the frame. 16. A method as recited in claim 11, in which: the actuator system comprises at least one actuator member comprising a cylinder and a shaft;the cylinder is rotatably secured to a portion of the frame;the shaft is rotatably secured to a portion of the actuator collar; andenergizing the actuator members in a first mode extends the shaft from the cylinder to displace the actuator collar towards the stop ring. 17. A clamp system for connecting a vibratory system defining a drive axis to a pile defining a pile inner surface, the clamp system comprising: a frame comprising an attachment member adapted to be operatively connected to the vibratory system,a stop ring defining a stop cam surface, anda center member for fixing a distance between the attachment member and the stop ring;a plurality of clamp members secured to the center member for limited motion along the drive axis and radially from the drive axis, where each clamp member defines first and second cam surfaces;an actuator collar defining an actuator cam surface;an actuator system for displacing the actuator collar; wherebythe frame supports the actuator system and the actuator collar such that the first cam surfaces engage the actuator cam surface and the second cam surfaces engage the stop cam surface;operation of the actuator system displaces the actuator collar towards the stop ring;as the actuator collar moves towards the stop ring, the actuator cam surface acts on the first cam surfaces and the stop cam surface acts on the second cam surfaces such that the clamp members are displaced away from the drive axis to place the clamp system in an engaged configuration; andthe clamp members are adapted frictionally to engage the pile inner surface when the clamp system is in the engaged configuration. 18. A clamp system as recited in claim 17, further comprising at least one return spring for each clamp member, where the return springs are arranged to bias the clamp members towards the drive axis. 19. A clamp system as recited in claim 18, further comprising at least one retaining bolt for each clamp member, where the retaining bolts are arranged to limit movement of the clamp members relative to the frame. 20. A clamp system as recited in claim 19, further comprising at least one slot formed in each clamp member, where the retaining bolts extend through the slots to allow movement of the clamp member along the drive axis.
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