JPH03106523U

JPH03106523U -

Info

Publication number: JPH03106523U
Application number: JP1510690U
Authority: JP
Priority date: 1990-02-16
Filing date: 1990-02-16
Publication date: 1991-11-05

Description

[Brief explanation of drawings]

第１図はこの考案の一実施例による対物レンズ
駆動装置の平面図、第２図は第１図のＡ視側面図
、第３図は第１図の要部拡大図、第４図は従来の
対物レンズ駆動装置の平面図、第５図は第４図の
Ａ視側面図、第６図は第４図の線−の断面図
である。図において、１……本体フレーム、２……支持
軸、４……ゴム製弾性部材、５……対物レンズ、
２１……対物レンズ保持部材、２１ａ……突起部
、２１ｂ……外壁、２１ｃ……段付部、２１ｄ…
…テーパ部である。なお、図中同一符号は同一又
は相当部分を示す。 Fig. 1 is a plan view of an objective lens driving device according to an embodiment of this invention, Fig. 2 is a side view from A in Fig. 1, Fig. 3 is an enlarged view of the main part of Fig. 1, and Fig. 4 is a conventional one. 5 is a plan view of the objective lens drive device, FIG. 5 is a side view taken from A in FIG. 4, and FIG. 6 is a sectional view taken along the line - in FIG. 4. In the figure, 1... Body frame, 2... Support shaft, 4... Rubber elastic member, 5... Objective lens,
21...Objective lens holding member, 21a...Protrusion, 21b...Outer wall, 21c...Stepped portion, 21d...
...It is a tapered part. Note that the same reference numerals in the figures indicate the same or equivalent parts.

Claims

[Claims for Utility Model Registration] An objective lens that forms a light spot on the disk, a support shaft fixed to the main body frame, and a support shaft sliding hole, which extends in the axial direction of the support shaft. an objective lens holding member that is slidably and rotatably mounted around the support shaft and supports the objective lens so that its optical axis is parallel to the support axis; An objective lens drive device comprising a rubber elastic member that elastically holds the objective lens holding member from the main body frame side, and a drive device that drives the objective lens holding member and thus the objective lens in the axial direction and rotational direction of a support shaft, the objective lens holding member At the protrusion of the rubber elastic member attachment part provided on the member, the outer wall for preventing the rubber elastic member from coming off is turned outward and has a stepped shape with a locally reduced cross-sectional area, and the insertion end is tapered. An objective lens drive device for an optical disk device, characterized in that it is tilted.