1. A tool holder comprising:
a shank member to be held by a tool spindle of a machine tool;
a cylindrical body coupled to the shank member;
an attachment hole formed in a radially inner portion of the body;
an anti-vibration device fitted to a radially outer portion of the body; and
a bolt,
wherein a straight shank of a cutting tool is inserted into the attachment hole, the bolt is inserted in a radial direction through the anti-vibration device to fix the straight shank of the cutting tool to the attachment hole of the body, wherein the anti-vibration device includes:
a ring-shaped first anti-vibration member fitted to the radially outer portion of the body of the anti-vibration holder;
a cylindrical second anti-vibration member fitted to the radially outer portion of the first anti-vibration member; and
four O-rings arranged at radially inner and outer portions at both ends of the first anti-vibration member, wherein
each end of the first anti-vibration member has a trapezoidal cross-sectional shape,
the O-rings are each arranged on one of the inner and outer circumferential surfaces of the ends of the first anti-vibration member, and
the first anti-vibration member is in contact with two of the O-rings in a wedge-like manner.
2. The anti-vibration tool holder according to claim 1, wherein the second anti-vibration member includes a groove formed in the radially inner portion at both ends to receive a seal ring.
3. The anti-vibration tool holder according to claim 1, further comprising a disk-shaped pressing plate provided on a side of the first anti-vibration member that faces the shank, the pressing plate pressing the O-rings,
wherein the second anti-vibration member has a wall surface at an end facing the shank, three threaded holes for adjuster bolts formed in the wall surface, and three adjuster bolts screwed into the threaded holes to press the pressing plate.
4. The anti-vibration tool holder according to claim 1, wherein the inner diameter of the first anti-vibration member is greater than the outer diameter of the body by substantially 0.1 mm, and the inner diameter of the second anti-vibration member is greater than the outer diameter of the first anti-vibration member by substantially 0.1 mm.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A wireless charging system comprising:
an inductive power supply for supplying wireless power; and
a remote device separable from said inductive power supply, wherein said remote device includes a secondary power circuit, a charge storage capacitor, a charging subcircuit, and a battery;
said secondary power circuit is electrically connected to said charge storage capacitor and said secondary power circuit is configured to receive wireless power from said inductive power supply and rapidly charge said charge storage capacitor;
said charging subcircuit is electrically connected to said charge storage capacitor and said battery;
wherein, in response to said charge storage capacitor reaching a predetermined voltage, said charging subcircuit charges said battery with power stored in said charge storage capacitor;
wherein said secondary power circuit sends charge information to said inductive power supply; and
wherein operation of said inductive power supply is adjusted based on said charge information received from said secondary power circuit.
2. The wireless charging system of claim 1 wherein said charging subcircuit is capable of charging said battery with power stored in said charge storage capacitor when said secondary power circuit is removed from said inductive power supply.
3. The wireless charging system of claim 1 wherein said remote device is capable of operating using power stored in said charge storage capacitor.
4. The wireless charging system of claim 1 wherein said charging subcircuit prevents said battery from leaking power into said charge storage capacitor.
5. The wireless charging system of claim 1 wherein the charge storage capacitor is selected from the group consisting of supercapacitor, an ultracapacitor, and an electrochemical double layer capacitor.
6. A remote device for receiving wireless power from an inductive power supply, said remote device comprising:
a secondary power circuit configured to receive wireless power;
a charge storage capacitor electrically connected to said secondary power circuit, wherein said secondary power circuit is configured to rapidly charge said charge storage capacitor;
a battery; and
a charging subcircuit electrically connected to said charge storage capacitor and said battery, wherein said charging subcircuit is configured to charge said battery with power stored in said charge storage capacitor;
wherein said charging subcircuit charges said battery with power stored in said charge storage capacitor in response to said charge storage capacitor reaching a predetermined threshold;
wherein said secondary power circuit sends charge information to the inductive power supply; and
wherein operation of the inductive power supply is adjusted based on said charge information received from said secondary power circuit.
7. The remote device of claim 6 wherein said remote device is capable of operating using power stored in said charge storage capacitor.
8. The remote device of claim 6 wherein the charge storage capacitor is selected from the group consisting of supercapacitor, an ultracapacitor, and an electrochemical double layer capacitor.
9. The remote device of claim 6 wherein said charging subcircuit prevents said battery from leaking power into said charge storage capacitor.
10. The remote device of claim 6 wherein said remote device is a remote control.
11. The remove device of claim 6 wherein said remote device is an implantable medical device.
12. A method for rapidly charging the battery of a remote device, said method comprising:
generating an electromagnetic field with an inductive power supply;
positioning a remote device with a secondary power circuit in the electromagnetic field to induce electrical power within the secondary power circuit;
rapidly charging a charge storage capacitor in the secondary power circuit with the induced power;
in response to reaching a predetermined voltage in the charge storage capacitor, charging the battery of the remote device with the power stored in the charge storage capacitor;
sending charge information from the secondary power circuit to the inductive power supply; and
adjusting operation of the inductive power supply based on the charge information received from the secondary power circuit.
13. The method of claim 12 wherein said adjusting operation of the inductive power supply includes adjusting at least one of an operating frequency, a duty cycle, and an input rail voltage of the inductive power supply.
14. The method of claim 12 wherein charging the battery in the remote device can continue even after the remote device is removed from the inductive power supply.
15. The method of claim 12 wherein the charge storage capacitor is selected from the group consisting of supercapacitor, an ultracapacitor, and an electrochemical double layer capacitor.
16. The wireless charging system of claim 1 wherein operation of said inductive power supply is adjusted by adjusting at least one of an operating frequency, a duty cycle, and an input rail voltage of said inductive power supply.
17. The remote device of claim 6 wherein operation of the inductive power supply is adjusted by adjusting at least one of an operating frequency, a duty cycle, and an input rail voltage of the inductive power supply.