JP2565615Y2 - Guide shaft fixing device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a guide shaft fixing device for guiding the movement of an optical pickup for reading a signal recorded on a disk.

[0002]

2. Description of the Related Art An optical disk player for optically reading a signal recorded on a disk by using an optical pickup has become widespread. However, such an optical pickup has a driving force of an electric motor in a radial direction of the disk. It is configured to be moved by. Since such an optical pickup needs to accurately read out a signal recorded on a disk, it is necessary to accurately move the disk in the radial direction, and generally, a guide shaft fixed to a fixed substrate is required. Is configured to guide the moving operation. An example of such a guide shaft fixing device is described in Japanese Utility Model Laid-Open No. 3-66068.

[0003]

Conventionally, a guide shaft mounting apparatus generally used is provided with a leaf spring and a fixing screw for pressing and fixing the guide shaft, so that the structure is complicated, expensive and expensive. There is a problem that workability at the time is poor. The present invention seeks to provide a guide shaft fixing device that improves this point.

[0004]

A guide shaft fixing device according to the present invention is configured such that a shaft supporting portion formed on a fixed substrate and supporting a guide shaft, and an electric motor for rotating and driving a turntable are fixed to the fixed substrate. The motor mounting member is formed of a synthetic resin, and a shaft holding portion integrally formed with the motor mounting member and into which an end of the guide shaft is inserted.

[0005]

According to the present invention, a motor mounting member for mounting and fixing a motor for rotationally driving a turntable to a fixed substrate is formed of synthetic resin, and the motor mounting member has a shaft holding portion for pressing and holding an end of a guide shaft. It is integrally molded.

[0006]

FIG. 1 is a plan view of a main part showing a disc player incorporating a guide shaft fixing device of the present invention, FIG.
Is a side view of the main part. In the figure, reference numerals 1 and 2 denote first and second guide shafts fixed to a fixed substrate 3,
Reference numeral 4 denotes an optical pickup supporting member for supporting the optical pickup 5, which is supported by the first guide shaft 1 and the second guide shaft 2 so as to be displaceable, and is driven by an arrow A and an electric motor for feeding the optical pickup (not shown). It is configured to be moved in the B direction.

Reference numeral 6 denotes an electric motor for rotatingly driving the turntable 7. The turntable 7 is press-fitted and fixed to a rotating shaft 8 thereof. Reference numeral 9 denotes an electric motor mounting member for mounting and fixing the electric motor 6 to the fixed substrate 3. The electric motor mounting member 9 is formed of a synthetic resin and has a cylindrical portion 10 that covers the electric motor 6. Reference numerals 11 and 12 denote mounting fixing portions integrally formed with the motor mounting member 9, and screws 13 and 14
And is fixed to the fixed substrate 3.

Reference numeral 15 denotes a shaft supporting portion for supporting one end of the first guide shaft 1. The shaft supporting portion 15 is formed by cutting and raising the fixed substrate 3 and has a U-shape to support the first guide shaft 1. A support groove 15a is provided. Reference numeral 16 denotes a shaft holding portion which is integrally formed with the mounting fixing portion 11 formed on the motor mounting member 9 and into which the end 1a of the first guide shaft 1 is inserted, and which is inclined as shown in FIG. Pieces 16a and 16b
Are formed. The insertion of the end 1a of the first guide shaft 1 into the shaft holding portion 16 is performed against the elastic force of the shaft holding portion 16. That is, the end 1 of the first guide shaft 1
a is inserted into the shaft holding portion 16, the first guide shaft 1 is
Are pressed against the wall of the support groove 15a of the shaft support 15 by the pressing force received from the inclined pieces 16a and 16b.

In the above-described disc player, when a reproducing operation is performed, the turntable 7 by the electric motor 6 is turned on.
The disk (not shown) mounted on the turntable 7 is rotated at a predetermined speed by the driving operation. The rotation of the pickup feed motor causes the optical pickup support member 4 to move in the directions of arrows A and B while being guided by the first guide shaft 1 and the second guide shaft 2. As a result of such an operation, an operation of reading a signal from a disk by the optical pickup 5 supported by the optical pickup supporting member 4 is performed.

The movement of the optical pickup supporting member 4 in the directions of arrows A and B, that is, the movement of the optical pickup supporting member 4 in the radial direction of the disk is performed while being guided by the first guide shaft 1 and the second guide shaft 2. The fixing operation of one end of the first guide shaft 1 is performed by the function of the shaft support portion 15 and the shaft holding portion 16.

In such a configuration, when the screws 13 and 14 for fixing the motor mounting member 9 to the fixed substrate 3 are removed, the motor 6 can be removed together with the motor mounting member 9. When the motor mounting member 9 is removed from the fixed substrate 3, the shaft holding portion 16 is separated from the end 1 a of the first guide shaft 1.
Can be removed from the shaft support 15, that is, from the fixed substrate 3. Therefore, the assembling work can be easily performed and the disassembly can be easily performed.

[0012]

According to the present invention, a motor mounting member for mounting and fixing a motor for rotationally driving a turntable to a fixed substrate is formed of synthetic resin, and a shaft holding for pressing and holding an end of a guide shaft to the motor mounting member. Since the portions are integrally formed, there is no need to separately provide a member such as a leaf spring for pressing and holding the guide shaft. Therefore, the construction is simplified and the assembling work is facilitated, and the present invention has a great effect when applied to a disc player requiring a small size such as a portable disc player.

[Brief description of the drawings]

FIG. 1 is a plan view of a main part showing a disc player incorporating a guide shaft fixing device of the present invention.

FIG. 2 is an enlarged side view of a main part showing the embodiment shown in FIG.

[Description of Signs] 1 First guide shaft 2 Second guide shaft 3 Fixed substrate 4 Optical pickup support member 6 Electric motor 7 Turntable 9 Electric motor attachment member 15 Shaft support 16 Shaft holding

Claims (1)

(57) [Scope of request for utility model registration] 1. A shaft support portion formed on a fixed substrate and supporting a guide shaft for guiding the movement of an optical pickup, and an electric motor for rotating and driving a turntable are attached and fixed to the fixed substrate and are made of synthetic resin. A motor holding member formed integrally with the motor mounting member and a shaft holding portion into which the end of the guide shaft is inserted, the shaft holding portion being attached to the shaft supporting portion by the elastic force of the shaft holding portion. A guide shaft fixing device, wherein the guide shaft is fixed to the fixed substrate by a pressing force.