Adjustable pickup head guide apparatus
A pickup head guide apparatus ( 1 ) includes two guide shafts ( 2 ), a fixing seat ( 3 ) with a first groove ( 30 ) therein to accommodate one end of a corresponding one of the guide shafts, three adjusting seats ( 4 ), and three corresponding adjusting devices ( 5 ). Each adjusting seat has a second groove therein to accommodate a corresponding one of the other three ends of the guide shafts. Each adjusting device includes an elastic element ( 52 ) positioned in the second groove, and a fixture element ( 51 ) which is adjustable from either of two opposite ends thereof. The elastic element and the fixture element engage with the corresponding guide shaft to accurately position the guide shaft.
1. A pickup head guide apparatus for guiding a pickup head with respect to an information recording face of a disk, said pickup head guide apparatus comprising:
at least one guide shaft;
a fixing seat with a first groove therein to accommodate one end of said guide shaft;
at least one adjusting seat with a second groove therein to accommodate another end of said guide shaft; and
at least one adjusting device including an elastic element positioned in the second groove, and a fixture element which is adjustable from ends thereof;
wherein the elastic element and the fixture element engage with said guide shaft to adjust the position of said guide shaft.
2. The pickup head guide apparatus as described in claim 1 , wherein said adjusting seat defines a recess at a bottom of the second groove, and the elastic element is partly received in the recess.
3. The pickup head guide apparatus as described in claim 2 , wherein a post extends upwardly in the recess for positioning the elastic element.
4. The pickup head guide apparatus as described in claim 1 , wherein the fixture element is a screw.
5. The pickup head guide apparatus as described in claim 4 , wherein the screw includes a pole portion, a cap portion adjoining the pole portion, and an adjusting portion opposite to the cap portion.
6. The pickup head guide apparatus as described in claim 5 , wherein the guide shaft is clamped between the elastic element and the cap portion of the screw.
7. The pickup head guide apparatus as described in claim 5 , wherein the cap portion defines a recess in an end face thereof.
8. The pickup head guide apparatus as described in claim 5 , wherein the cap portion includes a slant adjoining the pole portion.
9. The pickup head guide apparatus as described in claim 8 , wherein the slant abuts against the guide shaft.
10. The pickup head guide apparatus as described in claim 9 , wherein the guide shaft is clamped between the slant of the leading screw and a side of said adjusting seat.
11. The pickup head guide apparatus as described in claim 9 , wherein the pickup head guide apparatus comprises two guide shafts, three adjusting seats, and three adjusting devices.
12. The pickup head guide apparatus as described in claim 1 , wherein the fixing seat includes two side walls, and at least one protrusion extends from each of the side walls to clamp said one end of said guide shaft.
13. The pickup head guide apparatus as described in claim 1 , wherein said adjusting seat includes two side walls, and a L-shaped block extending backwardly from one of the side walls.
14. The pickup head guide apparatus as described in claim 1 , wherein said adjusting device includes a front block abutting a side of said another end of said guide shaft.
15. The optical pickup head guide apparatus as described in claim 5 , wherein the adjusting portion has a square shape or a hexagonal shape or a line-shaped recessed groove or a cross-shaped recessed groove.
16. An optical pickup head guide apparatus for guiding an optical pickup head with respect to an information recording face of an optical disk in an optical disk reproducing device and/or recording device, said optical disk reproducing device and/or recording device having a chassis with an opening therein, said optical pickup head guide apparatus comprising:
a shaft for guiding an optical pickup over the opening of the chassis;
fixing means mounted on the chassis for securing the shaft to the chassis; and
an adjusting device engaging with the fixing means for adjusting the position of the shaft;
wherein the adjusting device is adjustable from at least two directions.
17. The optical pickup head guide apparatus as described in claim 16 , wherein the adjusting device includes an elastic element and a fixture screw, the elastic element is positioned in the fixing means and contacts the shaft, and the fixture screw can be adjusted from either of two opposite ends thereof such that the elastic element is deformed.
18. The optical pickup head guide apparatus as described in claim 17 , wherein the fixture screw has a slant pressing a side of the shaft.
19. The optical pickup head guide apparatus as described in claim 17 , wherein the fixture screw includes a pole portion, a cap portion provided on an end of the pole portion, and an adjusting portion provided on an opposite end of the pole portion, and the cap portion includes an end face with a recess used for adjusting the fixture screw.
20. The optical pickup head guide apparatus as described in claim 19 , wherein the adjusting portion has a square shape or a hexagonal shape or a line-shaped recessed groove or a cross-shaped recessed groove.