Fastening tool

1. A fastening tool comprising:

a gear train that rotates as the fastening tool moves between a non-operated position and an operated position;

a socket for receiving a fastener at a first end of the fastener, the socket being rotatably supported to the gear assembly so that the socket rotates as the gear assembly rotates;

a one-way clutch having an opening facing the socket so that the opening of the one-way clutch receives the fastener at a second end of the fastener as the fastening tool moves from the non-operated position to the operated position;

a first holder, the gear train being supported to the first holder; and

a second holder that is supported to and is spaced from the first holder, the one-way clutch being supported to the second holder, the first and second holders being biased against each other when the fastening tool is in the non-operated position, the first and second holders moving towards each other as the fastening tool moves from the non-operated position to the operated position.

2. The fastening tool according to claim 1 , further comprising

a rack having a plurality of teeth that movably engage with the gear train as the fastening tool moves between the non-operated position and the operated position.

3. The fastening tool according to claim 2 , wherein

the rack extends from one of the first and second holders to the other one of the first and second holders.

4. The fastening tool according to claim 3 , wherein

one of the first and second holders having a through hole that receives the rack therethrough as the fastening tool moves from the non-operated position to the operated position.

5. The fastening tool according to claim 1 , further comprising

a telescopic pole supporting the first and second holders to each other.

6. The fastening tool according to claim 5 , wherein

the telescopic pole compresses as the fastening tool moves from the non-operated position to the operated position.

7. The fastening tool according to claim 6 , further comprising

a compression spring operatively coupled to the first and second holders to bias the first and second holders towards the non-operated position.

8. The fastening tool according to claim 7 , wherein

the compression spring is wound around the telescopic pole.

9. The fastening tool according to claim 6 , wherein

the first holder has a first handle portion, the second holder has a second handle portion, the telescopic pole connecting the first and second handle portions.

10. The fastening tool according to claim 9 , wherein

the first holder has a first main body portion that supports the gear train, the second holder has a second main body portion that supports the one-way clutch, the first and second main body portions being separated by a first space that is greater than a second space that separates the first and second handle portions.

11. The fastening tool according to claim 1 , wherein

the gear train includes a first gear having a plurality of first teeth that operatively engage the teeth of the rack.

12. The fastening tool according to claim 11 , wherein

the gear train further includes a second gear having a plurality of second teeth that that operatively engage the first teeth.

13. The fastening tool according to claim 12 , wherein

the gear train further includes a third gear having a plurality of third teeth that operatively engage the second teeth.

14. The fastening tool according to claim 13 , wherein

the socket is supported to the third gear.

15. The fastening tool according to claim 1 , wherein

the socket is a magnetic socket.

16. The fastening tool according to claim 1 , wherein

the one-way clutch is configured to hold a nut that is screwed to the fastener as the fastening tool moves from the non-operated position to the operated position.