1. A rotary hot tool, comprising:
a motor;
a rotary unit coupled to the motor and having an electrode connected to a power supply;
a heating body coupled to the rotary unit so that the heating body is heated by electric current supplied from the power supply, the heating body having a spiral groove formed in a circumferential outer surface; and
a polymer storage case provided at an upper position on the circumferential outer surface of the heating body, so that molten polymer that moves along the spiral groove is stored in the polymer storage case.
2. The rotary hot tool as set forth in claim 1, wherein the rotary unit comprises:
an upper chuck coupled to the motor;
the electrode, which comprises two circular electrodes with a through hole formed through each of the two circular electrodes;
an insulation member provided between the two circular electrodes, with a through hole formed through the insulation member; and
a lower chuck coupled to the upper chuck, with a boss part provided on the lower chuck and passing through the through holes of the circular electrodes and the insulation member.
3. The rotary hot tool as set forth in claim 1, wherein the heating body has a receiving space therein, and the rotary hot tool further comprises;
a resistance member provided in the receiving space of the heating body and connected to the electrode of the rotary unit, thus generating heat.
4. The rotary hot tool as set forth in claim 1, further comprising:
a separate resistance member provided in the polymer storage case to generate high heat.
5. The rotary hot tool as set forth in claim 2, further comprising:
a separate resistance member provided in the polymer storage case to generate high heat.
6. The rotary hot tool as set forth in claim 3, further comprising:
a separate resistance member provided in the polymer storage case to generate high heat.
7. The rotary hot tool as set forth in claim 1, further comprising:
a discharge tube coupled to the polymer storage case to discharge molten polymer from the polymer storage case to an outside.
8. The rotary hot tool as set forth in claim 2, further comprising:
a discharge tube coupled to the polymer storage case to discharge molten polymer from the polymer storage case to an outside.
9. The rotary hot tool as set forth in claim 3, further comprising:
a discharge tube coupled to the polymer storage case to discharge molten polymer from the polymer storage case to an outside.
10. A heat ablation apparatus, comprising:
a rotary hot tool, comprising: a motor; a rotary unit coupled to the motor and having an electrode connected to a power supply; a heating body coupled to the rotary unit so that the heating body is heated by electric current supplied from the power supply, the heating body having a spiral groove formed in a circumferential outer surface; and a polymer storage case provided at an upper position on the circumferential outer surface of the heating body, so that molten polymer that moves along the spiral groove is stored in the polymer storage case;
first feed means for moving the rotary hot tool in a direction of a first axis;
an indexing table to hold a workpiece thereon;
second feed means for moving at least one of the first feed means and the indexing table in a direction of a second axis perpendicular to the first axis; and
third feed means for moving at least one of the first and second feed means in a direction of a third axis perpendicular to the first and second axes.
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. An electronic apparatus comprising:
a housing including a plurality of wall members including external walls and at least one partition wall;
a printed circuit board disposed in the housing, main surfaces of the printed circuit board being substantially parallel to opening surfaces of the housing;
a heat-generating device disposed on the printed circuit board;
covers covering the respective opening surfaces of the housing; and
at least one raised lug provided in at least one of the covers;
wherein some of the wall members surround the heat-generating device, and a tip of the lug is in contact with one of the wall members surrounding the heat-generating device.
2. The electronic apparatus according to claim 1, further comprising a ground electrode disposed on the printed circuit board, wherein the wall members are conductive and are electrically connected to the ground electrode.
3. The electronic apparatus according to claim 1, further comprising an electronic component in a temperature-increase restricted region of the electronic apparatus, wherein a direction from the base of the lug to the tip of the lug is the same as a direction from the heat-generating device to the temperature-increase restricted region.
4. The electronic apparatus according to claim 3, wherein at least one of the covers is provided with a plurality of holes in a heat-barrier region between the lug and the temperature-increase restricted region, the holes being arranged in a direction crossing the direction from the lug to the temperature-increase restricted region.
5. The electronic apparatus according to claim 4, wherein the plurality of holes are arranged in a zigzag pattern in a direction crossing the direction from the lug to the temperature-increase restricted region.
6. The electronic apparatus according to claim 4, wherein the total area of the plurality of holes in the cover is not more than approximately two-thirds the area of the heat-barrier region.
7. The electronic apparatus according to claim 3, wherein the printed circuit board is provided with at least one slit extending in a direction crossing the direction from the heat-generating device to the temperature-increase restricted region.
8. The electronic apparatus according to claim 7, wherein the total length of said at least one slit is at least approximately one-third the width of the printed circuit board in the direction of the extension of the slit.
9. The electronic apparatus according to claim 3, wherein the width of the ground electrode on the printed circuit board is narrowed in the region between the heat-generating device and the temperature-increase restricted region.
10. The electronic apparatus according to claim 3, wherein a hole is provided in one of the wall members of the housing between the heat-generating device and the temperature-increase restricted region, the hole having a diameter of not less than about one-half the height of the wall member.
11. An electronic apparatus comprising:
a housing including a plurality of wall members including external walls and at least one partition wall;
a printed circuit board disposed in the housing, main surfaces of the printed circuit board being substantially parallel to opening surfaces of the housing;
a heat-generating device disposed on the printed circuit board;
covers covering the respective opening surfaces of the housing; and
a ground electrode disposed on the printed circuit board, wherein the wall members are conductive and are electrically connected to the ground electrode at least one raised lug provided in at least one of the covers.
12. The electronic apparatus according to claim 11, further comprising at least one raised lug provided in at least one of the covers, wherein some of the wall members surround the heat-generating device, and a tip of the lug is in contact with one of the wall members surrounding the heat-generating device.
13. The electronic apparatus according to claim 12, further comprising an electronic component in a temperature-increase restricted region of the electronic apparatus, wherein a direction from the base of the lug to the tip of the lug is the same as a direction from the heat-generating device to the temperature-increase restricted region.
14. The electronic apparatus according to claim 13, wherein at least one of the covers is provided with a plurality of holes in a heat-barrier region between the lug and the temperature-increase restricted region, the holes being arranged in a direction crossing the direction from the lug to the temperature-increase restricted region.
15. The electronic apparatus according to claim 14, wherein the plurality of holes are arranged in a zigzag pattern in a direction crossing the direction from the lug to the temperature-increase restricted region.
16. The electronic apparatus according to claim 14, wherein the total area of the plurality of holes in the cover is not more than approximately two-thirds the area of the heat-barrier region.
17. The electronic apparatus according to claim 13, wherein the printed circuit board is provided with at least one slit extending in a direction crossing the direction from the heat-generating device to the temperature-increase restricted region.
18. The electronic apparatus according to claim 17, wherein the total length of said at least one slit is at least approximately one-third the width of the printed circuit board in the direction of the extension of the slit.
19. The electronic apparatus according to claim 13, wherein the width of the ground electrode on the printed circuit board is narrowed in the region between the heat-generating device and the temperature-increase restricted region.
20. The electronic apparatus according to claim 13, wherein a hole is provided in one of the wall members of the housing between the heat-generating device and the temperature-increase restricted region, the hole having a diameter of not less than about one-half the height of the wall member.