JPH06195841A - Disk cartridge device - Google Patents

Abstract

PURPOSE:To suppress the secular deterioration of a vibration isolation mount by preventing a load from being imposed on a vibration isolation mount member at the time of non-recording/non-reproducing. CONSTITUTION:At a loading mechanism, a connection cam 5 for connecting a holder to a carrier is provided with a supporting pin 31 and a driving pin 32, and the supporting pin 31 and the driving pin 32 are inserted into the supporting hole 33b and the driving hole 33c of a detaining lever 33. The connection cam 5 is rotated in a C1 direction at the time of unloading, the detaining lever 33 is rotated in the C1 direction linking with the connection cam 5, a detaining pin 34 is engaged with a hook part 33a and a chassis for supporting a loading base 1 is fixed on a side plate 10 in a loading direction.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disk cartridge device having a loading mechanism for loading and unloading recording disks such as optical disks and magneto-optical disks housed in a cartridge with respect to a spindle motor.

[0002]

2. Description of the Related Art FIG. 6 is an exploded perspective view showing the outline of a conventional disk cartridge device.

Reference numeral 1 is a loading base, 2 is a disk cartridge containing a magneto-optical disk 2a as a recording medium therein, 3 is a holder for holding the disk cartridge 2, and 4 is a direction in which the disk cartridge 2 is inserted and ejected.
A carrier 5 that reciprocates in the (A1 and A2 directions), 5 is a connecting cam that connects the holder 3 and the carrier 4 and is axially supported by the loading base 1, and 6 is an optical pickup 7, a spindle motor 8 and the like. Is a chassis to which the loading mechanism 1 is fixed and the loading base 1 is fixed.

The vibration-proof mount 9 is attached to the side plate 1 by screws 12.
It is fixed to 0 and 11, and the tip is screwed to the side surface of the chassis 6, floating the chassis 6 to prevent the transmission of external vibration, and reduce the impact force transmitted to the chassis 6. ing. The side plates 10 and 11, the rear plate 13, the lower plate 14, the upper plate 15 and the face panel 16 form a housing by integrating the respective members, and the front panel 17 faces the back surface of the face panel 16. A dustproof door 18 that is arranged in the housing and that opens and closes in conjunction with the insertion and ejection operations of the disk cartridge 2 is supported. Also loading base 1
A loading motor unit 19 is fixed to the lower surface of the loading motor unit 19.
Is the loading pin 4 that is planted on the lower surface of the carrier 4.
engage a.

Next, the loading operation for the disc cartridge 2 will be described.

When the disc cartridge 2 is inserted through the insertion opening 16a of the face panel 16, the dustproof door 18 is opened in association with the inserting operation and is inserted into the holder 3. In the holder 3, the shutter 2b of the disc cartridge 2 is opened by a shutter opening / closing mechanism (not shown) to expose the magneto-optical disc 2a. The loading base 1 and the carrier 4 are connected by a spring 20,
The spring 20 constantly biases the carrier 4 in the A2 direction. The carrier 4 is locked at a predetermined position against the biasing force of the spring 20 by a latch mechanism (not shown), and the latch mechanism is released in association with the mounting of the disc cartridge 2 in the holder 3. And move in the A2 direction. Interlocking with the movement of the carrier 4 in the A2 direction, the connecting cam 5 rotates in the C2 direction to move the holder 3 in the B2 direction. The holder 3 mounts the magneto-optical disk 2a on the spindle motor 8 with the disk cartridge 2 as the loading position at the lower limit mounting position. A support arm 22 that supports the magnetic head 21 on the upper surface of the holder 3 interlocks with the holder 3 to insert the magnetic head 21 into the opening 3a of the holder 3 and hold the magnetic head 21 at a position close to the magneto-optical disk 2a.
At this time, the disc cartridge device can record and reproduce information on the magneto-optical disc 2a.

Next, the unloading operation for the disc cartridge 2 will be described.

By depressing the eject button 16b arranged on the face panel 16, the loading motor unit 19 is turned on and the cam 19a is rotated. Cam 19a
When the carrier rotates, the carrier 4 moves in the A1 direction against the spring 20, the cam 5 rotates in the C1 direction in conjunction with the carrier 4, and the holder 3 moves in the B1 direction. When the holder 3 reaches the insertion / ejection position which is the upper limit position, the carrier 4 is locked by the latch mechanism, and the disc cartridge 2 is moved in the ejection direction by the shutter opening / closing mechanism. The dustproof door 18 is opened in association with the disc cartridge 2, and the rear end of the disc cartridge 2 projects from the insertion opening 16a.

[0009]

As described above, the chassis 6 is provided with the access mechanism such as the optical pickup 7 and the spindle motor 8. Vibration or shock to the access mechanism at the time of recording / reproducing may cause a recording / reproducing error. In the above-mentioned disc cartridge device, the transmission of vibration from the outside to the chassis 6 is prevented and the shock is mitigated. It is attached to the side plates 10 and 11 via the vibration mount 9 and is floated with respect to a housing including the side plates 10 and 11, the rear plate 13, the lower plate 14, the upper plate 15 and the face panel 16. As shown in the configuration diagram of FIG. 7, the vibration proof mount 9 is composed of a vibration proof rubber 9a formed in a cylindrical shape, and mounting plates 9b and 9c fixed to both end surfaces of the vibration proof rubber 9a. . Here, the mounting plate 9b is formed with a screw hole and the screw 1
It is fixed to the side plates 10 and 11 by 0, and the mounting plate 9c is screwed and screwed to the chassis 6.

However, since a load in the shearing direction is constantly applied to the vibration isolating mount 9, the vibration isolating rubber 9a is deteriorated and hardened or plastically deformed with time due to this load. There is. In this way the anti-vibration rubber 9a
In the anti-vibration mount 9 having deteriorated, the anti-vibration effect and the impact mitigation effect cannot be sufficiently exerted, and a recording / reproduction error occurs due to a slight vibration or impact from the outside, or the anti-vibration rubber 9a is cracked by the impact Damage may occur.

In order to solve the above problems, it is an object of the present invention to prevent a load from being applied to the antivibration mount member during non-recording / reproduction, thereby suppressing deterioration of the antivibration mount member with time. It is to provide a disk cartridge device.

[0012]

In order to solve the above problems, the present invention provides a loading mechanism for moving a disc cartridge to a loading position or an unloading position, and a recording disc of the disc cartridge moved to the loading position. An access mechanism for recording or reproducing information, a chassis for accommodating the access mechanism and supporting the loading mechanism, a case for accommodating the chassis and the loading mechanism, and a chassis for the case. In a disc cartridge device provided with an elastic vibration isolating mount member to be coupled, the housing is moved at least in a load direction with respect to the vibration isolating mount member in association with a movement of the loading mechanism to the unloading position with respect to the disc cartridge. To the body Characterized by comprising an engagement means for fixing the chassis Te.

Further, the loading mechanism connects the holder for holding the disc cartridge and the carrier which reciprocates in two positions, and moves the holder to a mounting position or an inserting / discharging position for the disc cartridge in association with the carrier. A locking pin provided with a cam member, the engaging means projecting from the housing, and the locking pin locking in conjunction with the cam member moving the holder to the insertion / ejection position, and the holder Is configured to be separated from the insertion / ejection position by a locking member that is separated from the locking position for the locking pin. The loading mechanism further includes a carrier that moves to a first position for setting the disc cartridge to the loading position or a second position to set the disc cartridge to the unloading position.
A locking pin that projects the engaging means from the housing and the carrier, which locks the locking pin in conjunction with the movement of the carrier to the second position, and the carrier is It is characterized in that it is configured by a locking member that moves away from the locking position with respect to the locking pin in conjunction with moving away from the position 2. In addition, the loading mechanism,
The carrier includes a carrier that moves to a first position for moving the disk cartridge to the loading position or a second position to move the disk cartridge to the unloading position, and a loading base that supports the carrier. The coupling means has a fitting hole formed in the housing, a guide slit extending toward the fitting hole in the loading base, and in the carrier, inclined with respect to the moving direction of the carrier and the guide slit. Slidably engaged with the guide slit and the slide slit formed as described above, and is fitted into the fitting hole in association with movement of the carrier to the second position. And a fitting member that separates from the fitting hole in conjunction with the separation from the second position. That.

[0014]

According to the above-mentioned means, the engaging means for fixing the chassis to the housing at least in the load direction with respect to the antivibration mount member in synchronism with the movement to the unloading position provides antivibration in the unloading state. The load of the chassis and the members supported by the chassis is prevented from being applied to the mount member.

Further, by the locking pin of the housing and the locking member interlocking with the cam member, the chassis supporting the loading mechanism is fixed to the housing via the locking member when the holder is at the insertion / ejection position. The locking member is separated from the housing locking pin in conjunction with the holder being separated from the insertion / ejection position, so that the chassis is supported by the vibration-proof mount member. Further, by the locking pin of the housing and the locking member provided on the carrier, the chassis supporting the loading mechanism is fixed to the housing via the locking member when the carrier is in the second position, and the carrier is fixed. Is separated from the second position, the locking member separates from the locking pin, so that the chassis is supported by the vibration-proof mount member. Further, when the carrier is in the second position by the fitting hole of the housing, the guide slit of the loading base, the sliding slit of the carrier, and the fitting member engaged with the guide slit and the sliding slit. The chassis supporting the loading mechanism is fixed to the housing via the fitting member, and the fitting member separates from the fitting hole in conjunction with the carrier separating from the second position. It is supported by a vibration mount member.

[0016]

Embodiments of the present invention will be described below with reference to the drawings. In addition, in FIGS. 1 to 5, members corresponding to the members described based on FIGS. 6 and 7 are denoted by the same reference numerals, and description thereof will be omitted.

FIG. 1 is a perspective view showing a main part of a disk cartridge device according to a first embodiment of the present invention, FIGS.
FIG. 4 is an explanatory diagram showing the operation of the main part in the first embodiment.

Reference numeral 31 is a support pin which is planted at the center of rotation of the connecting cam 5 and has a threaded portion 31a formed at its tip, 32 is a drive pin which is planted near the outer periphery of the connecting cam 5, and 33 is a connection. A locking lever fixed to the cam 5 in the rotational direction and having a hook 33a formed near the tip thereof, 34 is a side plate 10 and a side plate 11.
The locking pins are planted at symmetrical positions respectively.

A support pin 31 and a drive pin 32 are planted in at least two connecting cams 5 which are parallel to each other in the insertion / ejection direction of the cartridge 2 among the plurality of connecting cams 5 (four in FIG. 6). The loading base 1 is provided with a support hole 1a into which the support pin 31 is loosely fitted, and a slit 1b through which the drive pin 32 is inserted and which is formed in the circumferential direction around the support hole 1a. . The support pin 31 loosely fitted in the support hole 1a is loosely fitted in the support hole 33b of the locking lever 33,
Further, the nut 35 is loosely fitted in the support holes 10a of the side plates 10 and 11, and the nut 35 is screwed to the screw portion 31a. The drive pin 32, which has been inserted through the slit 1b, has its tip portion loosely fitted in the drive hole 33c. As a result, the locking lever 33 swings around the support hole 33b in conjunction with the rotation of the connecting cam 5.

In the explanatory view of FIG. 2, the holder 3 is held at the mounting position with the disk cartridge 2 as the loading position, and the locking lever 33 is held at a position separated from the locking pin 34. At this time, the chassis 6 is connected to the side plates 10 and 11 only by the anti-vibration mount 9, and the anti-vibration mount 9 has a shearing direction corresponding to the chassis 6 and members such as a loading mechanism supported by the chassis 6. The load F1 is applied. As a result, the external vibration applied to the housing can be suppressed from being transmitted to the chassis 6, and the impact force transmitted to the chassis 6 can be mitigated.

When the holder 3 is moved from the position shown in FIG. 2 to the insertion / ejection position where the disc cartridge 2 is the unloading position, the connecting cam 5 rotates in the C1 direction in association with the carrier 4, as described above. By the movement of the drive pin 32, the locking lever 33 is also driven and rotated in the C1 direction. When the holder 3 reaches the insertion / ejection position, the locking lever 33
The locking pin 34 is locked by the hook portion 33a, and the locking pin 34 is pressed by a force F2 that approximately balances the load F1. For this reason,
Anti-vibration mount 9 that connects the chassis 6 and the side plates 10 and 11
A load is not applied to the anti-vibration mount 9 and the anti-vibration mount 9 is held in a non-deformed state.

FIG. 4 is a perspective view showing the essential parts of a disk cartridge device according to the second embodiment of the present invention.

Reference numeral 41 is a locking plate projecting from both ends of the carrier 4, and 42 is a locking pin implanted in symmetrical positions on the side plates 10 and 11, respectively.

Locking plates are provided on both sides of the loading base 1.
An insertion port 1c through which the 41 is inserted is formed, and the locking plate 41
Is A1 together with the carrier 4 while being inserted into the insertion opening 1c.
Alternatively, it moves in the A2 direction, and the vicinity of the tip is bent upward, and a U-shaped locking groove 41a is formed near the tip. At the position shown, the carrier 4 is at the forward limit of its moving stroke, and at this position, the holder 3 (not shown) is held at the mounting position.

When the holder 3 is moved from the position shown in FIG. 4 to the insertion / ejection position, the carrier 4 is moved to the A position as described above.
When the locking plate 41 moves in one direction and reaches the rearward limit of the moving stroke, the locking groove 41a is fitted into the locking pin 42 and the locking plate 41 is fixed by the locking pin 42 in the vertical direction. . As a result, the chassis 6 and the chassis 6
The loading mechanism and the like supported by are connected to the side plates 10 and 11 via the locking plate 41 and the locking pin 42, and are fixed in the load direction. Therefore, the chassis 6 and the side plate 1
The load is not applied to the anti-vibration mount 9 connecting 0 and 11.

Further, since the locking plate 41 is separated from the locking pin 42 by moving the carrier 4 in the A2 direction from the backward travel limit, the chassis 6, the loading mechanism and the like are elastically supported by the vibration proof mount 9. It will be in the state of being.

FIG. 5 is a perspective view showing the main part of a disk cartridge device according to the third embodiment of the present invention.

A fitting member 51 is arranged between the loading base 1 and the carrier 4.

Sliding slits 4b that are inclined with respect to the A1 and A2 directions are formed near the both ends of the carrier 4, and near the both ends of the loading base 1 with respect to the A1 and A2 directions. A pair of orthogonal guide slits 1d are formed, and the side plate of the loading base 1 is omitted near the guide slits 1d. Fitting holes 10a are formed in the side plates 10 and 11 at parallel positions in the insertion / ejection direction of the cartridge 2.

A sliding pin 51a which is loosely fitted in the sliding slit 4b is implanted in the fitting member 51, and the guide pin 52 is inserted from the lower surface of the loading base 1 into the guide slit 1d.
Is formed with an insertion hole 51b into which the tip of the side plate is inserted, and the vicinity of the end on the side plate 10 or 11 side is bent.
Fitting pins 51c projecting in the 10 and 11 directions are planted.
Here, the fitting member 51 is fixed to the loading base 1 in the vertical direction by the guide pin 52.

When the carrier 4 moves in the A1 and A2 directions, the sliding pin 51a moves in the sliding slit 4b. At this time, since the fitting member 51 is restricted by the guide pin 52 so as to move along the guide slit 1d, the carrier 4 moves in the A1 direction, moves in the D1 direction, and moves in the A2 direction. Move in the D2 direction. When the carrier 4 moves in the A1 direction and reaches the backward limit where the holder 3 is at the insertion / ejection position, the fitting member 51
Fits the fitting pin 51c into the fitting hole 10a. As a result, the chassis 6 and the loading mechanism and the like supported by the chassis 6 are connected to the side plates 10 and 11 via the fitting member 51 and fixed in the load direction. For this reason,
Anti-vibration mount 9 that connects the chassis 6 and the side plates 10 and 11
The load is not applied to.

Further, since the fitting pin 51c is separated from the fitting hole 10a as the carrier 4 moves in the A2 direction from the backward travel limit, the chassis 6 and the loading mechanism are elastically supported by the vibration-proof mount 9. It will be in the state of being.

As described above, according to the first to third embodiments of the present invention, no load is applied to the vibration-proof mount 9 in the unloading state where the holder 3 is at the insertion / ejection position. As a result, the deterioration of the vibration-proof rubber 9a due to the load can be suppressed, so that the performance deterioration of the vibration-proof mount 9 can be suppressed and the damage can be prevented.

[0034]

As described above, according to the present invention,
The engagement means for fixing the chassis to the housing prevents the chassis and the member supported by the chassis from being applied with a load on the vibration isolating mount member in the unloading state. Since it is possible to suppress the deterioration with time, it is possible to suppress the performance deterioration such as the vibration isolation effect and the impact relaxation effect of the anti-vibration mount,
Moreover, it is possible to prevent the occurrence of damage.

Further, by constructing the engaging means by the locking pin of the housing and the locking member interlocking with the cam member, the engaging means also engages with the locking pin of the housing and the engaging member interlocking with the carrier. By configuring the engaging means with the fitting hole of the housing and the fitting member that engages with the sliding slit of the carrier and the guide slit of the loading base, the engaging mechanism is linked with the loading mechanism. Thus, it is possible to provide an engagement means capable of fixing the chassis to the housing in the load direction in the unloading state.

[Brief description of drawings]

FIG. 1 is a perspective view showing a main part of a disk cartridge device according to a first embodiment of the present invention.

FIG. 2 is an explanatory diagram showing an operation of a main part in the first embodiment.

FIG. 3 is an explanatory diagram showing an operation of a main part in the first embodiment.

FIG. 4 is a perspective view showing an essential part of a disk cartridge device according to a second embodiment of the present invention.

FIG. 5 is a perspective view showing a main part of a disk cartridge device according to a third embodiment of the present invention.

FIG. 6 is an exploded perspective view showing the outline of a conventional disc cartridge.

FIG. 7 is a configuration diagram showing a vibration isolation mount.

[Explanation of symbols]

3 ... Holder, 4 ... Carrier, 5 ... Connection cam, 6 ...
Chassis, 9 ... Anti-vibration mount, 10, 11 ... Side plate, 10
a ... Fitting hole, 31 ... Support pin, 32 ... Drive pin, 33 ... Locking lever, 34 ... Locking pin, 41 ... Locking plate, 42 ... Locking pin, 51 ... Fitting member, 51c ... Fitting pin.

Claims (4)

[Claims] 1. A loading mechanism that moves a disc cartridge to a loading position or an unloading position, an access mechanism that records or reproduces information on a recording disc of the disc cartridge that has moved to the loading position, and the access mechanism. A disk cartridge including a chassis that houses and supports the loading mechanism, a housing that houses the chassis and the loading mechanism, and an elastic vibration-proof mount member that connects the chassis to the housing. The apparatus is provided with an engaging means for fixing the chassis to the housing in at least the load direction with respect to the vibration-proof mount member in association with the movement of the loading mechanism to the unloading position with respect to the disk cartridge. Features Disc cartridge device. 2. The loading mechanism connects a holder for holding the disc cartridge and a carrier that reciprocates in two positions, and moves the holder to a mounting position for the disc cartridge or an insertion / ejection position in conjunction with the carrier. A locking pin provided with a cam member, the engaging means projecting from the housing, and the locking pin locking in conjunction with the cam member moving the holder to the insertion / ejection position, and the holder 2. The disk cartridge device according to claim 1, further comprising: a locking member which is separated from the locking position with respect to the locking pin in association with the separation from the insertion / ejection position. 3. The engaging mechanism comprises a carrier that moves to a first position for bringing the disc cartridge into the loading position or a second position for bringing the disc cartridge into the unloading position, and the engagement. A locking pin projecting means from the housing and the carrier, locking the locking pin in conjunction with the movement of the carrier to the second position, and the carrier at the second position. 2. The disc cartridge device according to claim 1, wherein the disc cartridge device is configured by a locking member that is separated from a locking position with respect to the locking pin in conjunction with the separation from the locking pin. 4. The first loading mechanism sets the disc cartridge to the loading position.
Or a carrier that moves to a second position for setting the disc cartridge to the unloading position,
With a loading base that supports this carrier,
The engaging means includes a fitting hole formed in the housing, a guide slit extending toward the fitting hole in the loading base, and a carrier moving direction and the guide slit in the carrier. Sliding slits formed so as to be inclined, slidably engaged with the guide slits and the sliding slits, and interlocked with the movement of the carrier to the second position into the fitting holes. 2. The disk cartridge device according to claim 1, further comprising a fitting member that is fitted and that is separated from the fitting hole in association with the separation from the second position.