JPH07334956A - Cartridge type optical disk recording/reproducing device - Google Patents

Abstract

PURPOSE:To move an objective lens to a noncontact position with a shutter placed at a closed position of a cartridge with a shutter in a regular position and to simplify a shutter opening/closing mechanism structure. CONSTITUTION:An optical disk cartridge 1 is carried from an insertion position to the regular position by a carrier. At this time, a moving device 10 moves an actuator 7 from a recording/reproducing position to a separated position interlocked with the transfer operation of the optical disk cartridge 1. By that, the moving device 10 moves the actuator 7 to the separated position, the upper end of the objective lens 6 is held at the position of P2. Thus, even when the optical disk cartridge 1 moves from the insertion position to the regular position in the state where the shutter 3 is closed, such a state that the objective lens 6 comes into contact with the shutter 3, is prevented.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cartridge type optical disc recording / reproducing apparatus for recording / reproducing information on / from a disc type recording medium housed in a cartridge with a shutter, and more particularly, to a shutter and an actuator of a cartridge with a shutter. The present invention relates to a cartridge-type optical disk recording / reproducing apparatus having means for preventing a collision with the objective lens.

[0002]

2. Description of the Related Art FIGS. 6 and 7 are perspective views of an optical disk cartridge loaded in a cartridge type optical disk recording / reproducing apparatus, and FIG. 8 is a configuration diagram showing a main part and an optical disk cartridge of a conventional cartridge type optical disk recording / reproducing apparatus. Is. In FIGS. 6 and 7, 1 is an optical disc cartridge with a shutter, 2 is an optical disc which is a disc-type recording medium which is stored in the optical disc cartridge 1 and is capable of recording and reproducing, and 3 is a shutter which is arranged in the opening of the optical disc cartridge 1. Reference numeral 4 denotes a concave engaging portion formed on the shutter 3. 6 shows a state in which the shutter 3 is in the closed position in the optical disc cartridge 1, and FIG. 7 shows a state in which the shutter 3 is opened in the optical disc cartridge 1, and in this state, the shutter 3 is formed by a spring spring (not shown). It is biased in the closing direction (direction A).

Further, in FIG. 8, reference numeral 5 is a stationary device which is connected to the optical disk 2 of the optical disk cartridge 1 which has moved to the stationary position and rotates the optical disk 2 at the time of recording / reproducing. The objective lens 7 collects the light for performing the operation, and 7 is an actuator that supports the objective lens 6 and drives the objective lens 6.

Next, the operation of the above-mentioned cartridge type optical disc recording / reproducing apparatus will be described. FIG. 8A shows a state in which the optical disk cartridge 1 is inserted into the carrier (not shown) from outside the device. In this state, the shutter opening / closing mechanism (not shown) engages the engaging portion 4 to hold the shutter 3 in the open position, and the carrier inserts the optical disk cartridge 1 from the insertion position shown in FIG. The optical disk cartridge 1 is loaded into the stationary device 5 by moving to the stationary position shown in b). At this time, the actuator 7
The upper end of the objective lens 6 is inserted into the optical disc cartridge 1 with the shutter 3 opened. Further, the stationary device 5 is connected to the optical disc 2 when the optical disc cartridge 1 is loaded, and rotatably supports the optical disc 2.

As shown in FIG. 8B, the stationary device 5 rotates the optical disk 2 while the optical disk cartridge 1 is moved to the stationary position, and the objective lens 6 collects light on the optical disk 2. Thus, information recording / reproduction is performed on the optical disc 2.

[0006]

In the above-mentioned cartridge type optical disc recording / reproducing apparatus, the optical disc cartridge 1 is opened at the insertion position by the shutter opening / closing mechanism so that the shutter 3 remains open. In this state, the carrier is transported from the insertion position to the stationary position. Therefore, the shutter opening / closing mechanism must be configured to move together with the carrier, and the shutter opening / closing mechanism is generally arranged on the carrier. However, when the shutter opening / closing mechanism is arranged in the carrier, the space in which the shutter opening / closing mechanism is arranged is restricted, and the carrier moves, so that the structure of the shutter opening / closing mechanism becomes complicated.

In order to solve the above problems, an object of the present invention is to provide a means for moving an objective lens to a non-contact position with respect to a shutter in a closed position in a stationary position, and a structure of a shutter opening / closing mechanism is simple. Another object of the present invention is to provide a cartridge type optical disk recording / reproducing device.

[0008]

In order to solve the above problems, the first means of the present invention condenses light for recording / reproducing information on / from a disc type recording medium housed in a cartridge with a shutter. Of the cartridge with the shutter that has been moved to the stationary position, including an objective lens for controlling the objective lens, an actuator that supports the objective lens and drives the objective lens at the time of recording and reproducing, and a moving device that moves the actuator along the disc-type recording medium. In a cartridge type optical disc recording / reproducing apparatus for recording / reproducing information on / from a disc type recording medium, the moving device moves the actuator in a separating direction with respect to a cartridge with a shutter which moves to the stationary position, and the objective lens. With means to hold the shutter in the non-contact position with respect to the shutter in the closed position And wherein the door.

The second means is an objective lens that collects light for recording and reproducing information on and from a disk type recording medium housed in a cartridge with a shutter, and an objective lens that supports this objective lens at the time of recording and reproducing. A cartridge type that includes an actuator that drives an objective lens and a moving device that moves the actuator along a disc-type recording medium, and that records and reproduces information on and from the disc-type recording medium of a cartridge with a shutter that has moved to a fixed position. In the optical disc recording / reproducing apparatus, the actuator is movably supported by the moving device in the direction of contact with and away from the disc-type recording medium, and the actuator is projected to the disc-type recording medium and hits the cartridge with the shutter that has moved to the stationary position. Contact and move the actuator in the separating direction. , Characterized in that a protective member for holding the non-contact position with respect to the shutter in the objective lens in a closed position.

Further, the third means is a shutter opening mechanism for opening the shutter of the cartridge with a shutter at the stationary position, and a shutter fixing member for locking the shutter opened by the shutter opening mechanism and holding it at the opened position. It is characterized by having.

[0011]

According to the above-mentioned first means, when the cartridge with the shutter is moved to the stationary position, the objective lens is moved to the non-contact position with respect to the shutter in the closed position by the moving mechanism, whereby the cartridge with the shutter is moved. It is possible to move the to the stationary position with the shutter closed and open the shutter at the stationary position.

According to the second means, when the cartridge with the shutter moves to the stationary position, the protection member contacts the cartridge with the shutter to move the actuator in the separating direction, and the objective lens with respect to the shutter. By moving to the non-contact position, it becomes possible to move the cartridge with the shutter to the stationary position with the shutter closed and open the shutter at the stationary position.

Further, according to the third means, by holding the shutter in the open position by the shutter fixing member at the stationary position, it is not necessary to hold the shutter in the open position by the shutter opening / closing mechanism at the time of recording / reproducing.

[0014]

【Example】

(First Embodiment) FIG. 1 is a block diagram showing the essential parts of a first embodiment of the cartridge type optical disk recording / reproducing apparatus of the present invention. Members corresponding to the members described with reference to FIGS. , The same reference numerals are given and the description is omitted. Ten
Is a moving device that moves the actuator 7 in the radial direction of the optical disc 2, and the moving device 10 is the actuator 7 in a direction substantially orthogonal to the recording surface of the optical disc 2.
Is equipped with a means for moving.

FIG. 1A shows a state immediately after the optical disc cartridge 1 is inserted into the insertion position from the outside of the apparatus. The optical disc cartridge 1 is inserted into a carrier (not shown), and the moving device 10 includes an actuator 7. It is held at the recording / playback position. At this time, the shutter 3 of the optical disk cartridge 1 is in the closed position shown in FIG.

The optical disk cartridge 1 is carried by the carrier from the insertion position shown in FIG. 1 (a) to the stationary position shown in FIG. 1 (b). At this time, the moving device 10 interlocks with the carrying operation of the optical disk cartridge 1. The actuator 7 is moved from the recording / reproducing position to the separated position shown in FIG.

When the moving device 10 moves the actuator 7 to the separated position, the upper end of the objective lens 6 is held at the position P2. As a result, even if the optical disc cartridge 1 moves from the insertion position to the stationary position with the shutter 3 closed, the contact between the objective lens 6 and the shutter 3 is prevented. At the stationary position, the shutter opening / closing mechanism (not shown) opens the shutter 3 of the optical disc cartridge 1. And the moving device 10
After the shutter 3 is opened, the actuator 7 is moved to the recording / reproducing position again, the upper end of the objective lens 6 is held at the position P1, and the upper end of the objective lens 6 is inserted into the optical disc cartridge 1.

2 and 3 are explanatory views of the shutter fixing member in the cartridge type optical disk recording / reproducing apparatus of the first embodiment. 11 is a spring on the device body
A shutter fixing member fixed via 12. The shutter fixing member 11 contacts the lower surface of the shutter 3 of the optical disk cartridge 1 during the movement from the insertion position to the stationary position, and holds the spring 12 in a compressed state by a predetermined amount at the stationary position. When the shutter opening / closing mechanism moves the shutter 3 to the open position, the shutter fixing member 11 moves to the position where the shutter 3 is locked by the spring 12 being restored. Further, when the optical disc cartridge 1 moves up from the stationary position to the insertion position, the shutter 3 separates from the shutter fixing member 11 and returns to the closed position by the urging force in the closing direction. Since the shutter fixing member 11 holds the shutter 3 in the open position at the stationary position, the shutter opening / closing mechanism only needs to move the shutter 3 to the open position, and is biased in the closing direction by the shutter opening / closing mechanism. Shutter 3
Need not be held.

According to the cartridge type optical disk recording / reproducing apparatus of the first embodiment, the optical disk cartridge 1 can be moved to the stationary position with the shutter 3 closed, and the shutter 3 can be opened at the stationary position. As a result, the shutter opening / closing mechanism can be fixed to the chassis or the like of the main body of the apparatus, so that the structure of the shutter opening / closing mechanism can be simplified and the arrangement space is less restricted. Further, even if the shutter opening / closing mechanism does not normally open the shutter 3, it is possible to reliably prevent the objective lens 6 and the shutter 3 of the optical disc cartridge 1 from colliding. Also, the shutter fixing member 11 in the stationary position
By holding the shutter 3 in the open position, it is not necessary for the shutter opening / closing mechanism to hold the shutter 3 in the closed position, so that the structure of the shutter opening / closing mechanism can be further simplified.

(Second Embodiment) FIG. 4 is a block diagram showing the essential parts of a second embodiment of the cartridge type optical disk recording / reproducing apparatus of the present invention, and FIG. 5 is a protection diagram of the cartridge type optical disk recording / reproducing apparatus of the second embodiment. It is explanatory drawing of a member and a shutter fixing member, and attaches | subjects the same code | symbol about the member corresponding to the member demonstrated based on FIGS. 6 thru | or 8, and abbreviate | omits description. A moving device 20 moves the actuator 7 in the radial direction of the optical disc 2. The moving device 20 movably supports the actuator 7 in a direction substantially orthogonal to the recording surface of the optical disc 2, and
Is urged to the recording / reproducing position shown in FIG. Reference numeral 21 denotes a protective member protruding from the upper surface of the actuator 7, and the upper end of the protective member 21 is located higher than the upper end of the objective lens 6.

FIG. 4 (a) shows a state immediately after the optical disk cartridge 1 is inserted from the outside of the apparatus to the insertion position. The optical disk cartridge 1 is inserted into a carrier (not shown), and the moving device 20 is provided with the actuator 7. It is held at the recording / playback position. At this time, the shutter 3 of the optical disk cartridge 1 is in the closed position shown in FIG.

The optical disk cartridge 1 is carried by the carrier from the insertion position shown in FIG. 4 (a) to the stationary position shown in FIG. 4 (b).
The shutter 3 in the closed position contacts the protection member 21. As a result, the actuator 7 movably supported by the moving device 20 is pushed down in the direction in which it is separated from the optical disc cartridge 1. Then, when the optical disk cartridge 1 moves to the stationary position shown in FIG. 4B, the actuator 7 moves to the separated position shown in FIG.

When the moving device 20 moves the actuator 7 to the separated position, the upper end of the objective lens 6 is held at the position P2. As a result, even if the optical disc cartridge 1 moves from the insertion position to the stationary position with the shutter 3 closed, the contact between the objective lens 6 and the shutter 3 is prevented. In the stationary position, the shutter opening / closing mechanism (not shown) opens the shutter 3 of the optical disc cartridge 1 while sliding it on the protection member 21. At this time, by moving the shutter 3 to the open position, the protection member 21 is disengaged from the shutter 3 and the actuator 7 is not pressed. Therefore, the moving device 20 moves the actuator 7 to the recording / reproducing position by the urging force and holds the upper end of the objective lens 6 at the position P1.

FIG. 5 shows a state in which the shutter 3 is in the open position and the actuator 7 has moved to the recording / reproducing position. The upper end of the objective lens 6 and the upper end of the protection member 21 are respectively located on the optical disk cartridge 1. Insert inside.

Reference numeral 22 is a shutter fixing member fixed to the main body of the apparatus via a spring 23. The shutter fixing member 22 contacts the lower surface of the shutter 3 of the optical disk cartridge 1 which moves to the stationary position, and holds the spring 23 in a compressed state by a predetermined amount at the stationary position. When the shutter opening / closing mechanism moves the shutter 3 to the open position, the shutter fixing member 22 moves to the position where the shutter 3 is locked by the spring 23 being restored.
Further, when the optical disc cartridge 1 moves up from the stationary position to the insertion position, the shutter 3 is separated from the shutter fixing member 22 and returns to the closed position by the urging force in the closing direction. Since the shutter fixing member 22 holds the shutter 3 in the open position at the stationary position, the shutter opening / closing mechanism only needs to move the shutter 3 to the open position, and is biased in the closing direction by the shutter opening / closing mechanism. It is not necessary to hold the shutter 3.

According to the cartridge type optical disk recording / reproducing apparatus of the second embodiment, it becomes possible to move the optical disk cartridge 1 to the stationary position with the shutter 3 closed and to open the shutter 3 at the stationary position. As a result, the shutter opening / closing mechanism can be fixed to the chassis or the like of the main body of the apparatus, so that the structure of the shutter opening / closing mechanism can be simplified and the arrangement space is less restricted. Further, even if the shutter opening / closing mechanism does not normally open the shutter 3, it is possible to reliably prevent the objective lens 6 and the shutter 3 of the optical disc cartridge 1 from colliding. Also, the shutter fixing member 22 in the stationary position
By holding the shutter 3 in the open position, it is not necessary for the shutter opening / closing mechanism to hold the shutter 3 in the closed position, so that the structure of the shutter opening / closing mechanism can be further simplified.

[0027]

As described above, according to the first means of the present invention, when the cartridge with the shutter moves to the stationary position, the moving mechanism does not contact the objective lens with the shutter at the closed position. By moving it to the position, the cartridge with the shutter can be moved to the stationary position with the shutter closed, and the shutter can be opened at the stationary position, so the shutter opening / closing mechanism can have a simple structure, Moreover, it is possible to reliably prevent the collision between the cartridge with the shutter and the objective lens,
Further, since the cartridge with the shutter closed can be attached / detached, it is possible to freely take out / insert a cartridge other than the cartridge currently being recorded / reproduced.

Further, according to the second means of the present invention, when the cartridge with the shutter moves to the stationary position, the protective member abuts the cartridge with the shutter to move the actuator in the separating direction, and the objective lens is shuttered. By moving the cartridge with the shutter in a non-contact manner, the cartridge with the shutter can be moved to the stationary position with the shutter closed, and the shutter can be opened at the stationary position, so that the shutter opening / closing mechanism has a simple structure. In addition, it is possible to reliably prevent the collision of the cartridge with the shutter and the objective lens, and since the cartridge with the shutter closed can be attached or detached, it is possible to freely use a cartridge other than the one currently recording and reproducing. It can be taken out and put in.

According to the third means of the present invention, by holding the shutter in the open position by the shutter fixing member at the stationary position, it is not necessary to hold the shutter in the open position by the shutter opening / closing mechanism during recording and reproduction. By moving the shutter to the open position by the shutter opening / closing mechanism, the shutter is held at the open position, so that the structure of the shutter opening / closing mechanism can be further simplified.

[Brief description of drawings]

FIG. 1 is a configuration diagram showing a main part in a first embodiment of a cartridge type optical disc recording / reproducing apparatus of the present invention.

FIG. 2 is an explanatory diagram of a shutter fixing member in the cartridge type optical disc recording / reproducing apparatus of the first embodiment.

FIG. 3 is an explanatory diagram of a shutter fixing member in the cartridge type optical disc recording / reproducing apparatus of the first embodiment.

FIG. 4 is a configuration diagram showing a main part in a second embodiment of a cartridge type optical disc recording / reproducing apparatus of the present invention.

FIG. 5 is an explanatory diagram of a protection member and a shutter fixing member in the cartridge type optical disc recording / reproducing apparatus of the second embodiment.

FIG. 6 is a perspective view of an optical disc cartridge loaded in a cartridge type optical disc recording / reproducing apparatus.

FIG. 7 is a perspective view of an optical disc cartridge loaded in a cartridge type optical disc recording / reproducing apparatus.

FIG. 8 is a configuration diagram showing a main part and an optical disc cartridge of a conventional cartridge type optical disc recording / reproducing apparatus.

[Explanation of symbols]

1 ... Optical disk cartridge, 2 ... Optical disk, 3
... Shutter, 5 ... Stationary device, 6 ... Objective lens,
7 ... Actuator, 10, 20 ... Moving device, 11, 22 ...
Shutter fixing member, 12, 23 ... Spring, 21 ... Protecting member.

Claims (3)

[Claims] 1. An objective lens for condensing light for recording / reproducing information on / from a disc type recording medium housed in a cartridge with a shutter, and an actuator for supporting the objective lens and driving the objective lens at the time of recording / reproducing. When,
A cartridge type optical disc recording / reproducing apparatus for recording / reproducing information to / from a disc type recording medium of a cartridge with a shutter which is moved to a stationary position, the movement unit moving the actuator along the disc type recording medium. The apparatus is provided with means for moving the actuator in a separating direction with respect to the shutter cartridge that moves to the stationary position, and holding the objective lens in a non-contact position with respect to the shutter in the closed position. Cartridge type optical disk recording / reproducing device. 2. An objective lens for condensing light for recording / reproducing information on / from a disc type recording medium housed in a cartridge with a shutter, and an actuator for supporting the objective lens and driving the objective lens at the time of recording / reproducing. When,
A cartridge type optical disc recording / reproducing apparatus for recording / reproducing information to / from a disc type recording medium of a cartridge with a shutter which is moved to a stationary position, the movement unit moving the actuator along the disc type recording medium. The actuator movably supports the disk type recording medium in the contacting / separating direction, and the actuator is moved in the separating direction by contacting the actuator with the shutter-shaped cartridge protruding toward the disk type recording medium and moved to the stationary position. A cartridge-type optical disc recording / reproducing apparatus, characterized in that a protective member for holding the objective lens in a non-contact position with respect to the shutter in the closed position is provided. 3. A shutter opening mechanism for opening the shutter of the cartridge with a shutter at the stationary position, and a shutter fixing member for locking the shutter opened by the shutter opening mechanism and holding the shutter at the open position. The cartridge type optical disc recording / reproducing apparatus according to claim 1 or 2.