JPH0648609Y2 - Disk loading mechanism - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of use] The present invention relates to a disk loading mechanism for loading and unloading a disk cartridge containing a storage disk into and from a drive.

[Prior Art] For example, in a storage device that uses a replaceable storage medium such as an optical disc device, a disc of the storage medium is housed in a disc cartridge and is protected and then mounted and removed. A disc loading mechanism is attached to and detached from.

FIG. 3 shows an example of a disc loading mechanism provided in the optical disc device.

The disc loading mechanism is composed of a tray 1 for holding a disc cartridge (described later) that accommodates an optical disc, and a carrier 2 for moving the tray 1 in the vertical direction.

In the carrier 2, the reference pins 5 and 6 for setting the reference position of the disc cartridge (described later) are inserted into the slots 3 and 4 provided at the front both ends, and the reference holes provided at the rear of the slot 3 are provided. A height reference pin 8 for setting the height of the carrier 2 is inserted into the hole 7. As a result, the movement of the carrier 2 is restricted only in the longitudinal direction of the slots 3, 4, 7.

Further, the pushing portion 2a extended and folded down to the position where the long hole 4 is provided is for pushing the carrier 2 by an eject button (not shown) or the like when the disc cartridge is ejected.

Inner protrusions 9 and 10 of the carrier 2 and the frame of the drive device
Springs 12 and 13 are stretched between the carrier 11 and the carrier 11, so that the carrier 2 is biased in the direction of arrow R1, that is, in the disc cartridge ejecting direction. This biasing force is locked by a latch mechanism 14 provided behind the elongated hole 4 when the disc cartridge is not mounted.

The raised side ends 15 and 16 of the carrier 2 are provided with substantially V-shaped guide holes 17 and 18 and guide holes 19 and 20 for guiding the tray 1, respectively.

The tray 1 is generally formed so as to hold a disc cartridge from above and both sides thereof, and both lower side portions of the disc cartridge storage port are bent downward.

Guide holes 23, 24 for inserting guide pins 21, 22 projecting from the frame 11 are formed at both rear end portions of the tray 1, and side end portions 15, 16 of the carrier 2 are formed at both side portions thereof. Pins 25 to 28 which engage with the guide holes 17 to 20 are provided. As a result, the movement direction of the tray 1 is restricted so that it moves only in the vertical direction.

Inside the tray 1, in the vicinity of the guide holes 23 and 24, levers 31 and 32 for opening and closing a shutter (not shown) of the disk cartridge are rotatably attached. The height of the lever 31 is one step lower than that of the lever 32 so that the lever 31 and the lever 32 can intersect with each other.

The turntable 33 is arranged at the tip of a spindle motor that drives the optical disc to rotate and holds the optical disc. Further, the turntable 33 is provided with a mechanism for performing magnetic chucking,
Further, a magnetic disk for adsorption is arranged at the center of the optical disk.

Further, behind the latch mechanism 14, as shown in FIG.
The pin 35 for locking the carrier 2 and the solenoid 36 attached to the tip of the plunger are
The pin 35 is disposed from below and protrudes above the frame 11 from an elongated hole 37 extending in the moving direction of the plunger formed in the frame 11.

Therefore, when the solenoid 36 is turned on and the plunger is attracted, as shown in FIG. 5 (a), the pin 35 moves in the elongated hole 37 and is positioned at a position where it can be engaged with the rear portion 2b of the carrier 2. Then, when the solenoid 36 is turned off and the plunger is projected, the pin 35 moves in the long hole 37 and is positioned so as not to engage with the rear portion 2b of the carrier 2 as shown in FIG. To be done.

With the above construction, when the disc cartridge 50 is not mounted, as shown by the solid line in FIG.
The pins 25 to 28 are supported so as not to fall into the guide holes 17 to 20 of the carrier 2. Further, in this state, the biasing force of the eject springs 12 and 13 is locked by the latch mechanism 14, and the levers 31 and 32 of the tray 1 are moved to the limit position in the biasing direction.

Here, when the disc cartridge 50 is inserted into the tray 1, the levers 31 and 32 gradually open the shutter of the disc cartridge 50, and when the disc cartridge 50 is pushed to a fixed position, the lever 32 causes the latch mechanism 14 to eject the eject spring. Release the bias of 12,13,
As a result, the carrier 2 has the eject springs 12, 1
By 3, the disk cartridge 50 is moved in the ejecting direction.

Therefore, the pins 25 to 28 of the tray 1 move along the guide holes 17 to 20 of the carrier 2, whereby the tray 1 descends in the direction of the carrier 2 as shown by the chain double-dashed line in FIG. .

As a result, the disc cartridge 50 is lowered toward the turntable 33 while being positioned at the reference position, the turntable 33 is inserted into the disc cartridge 50 from the shutter opened at that time, and the optical disc is placed on the turntable 33. The optical disk is chucked and fixed to the spindle motor.

In this way, when the mounting of the optical disc is completed and the access of the drive to the optical disc is started, the solenoid 36 is turned on by the control unit (not shown), so that the pin 35 can be engaged with the rear portion 2b of the carrier 2. Aspect is positioned.

Therefore, when the optical disk is loaded in the drive and the optical disk is accessed, if you press the eject button to eject the optical disk,
Since the rear portion 2b of the carrier 2 is engaged with the pin 35, the pushing amount thereof is insufficient, whereby the disc cartridge 50 is not ejected.

Also, when the access to the optical disk is completed, the solenoid 36 is turned off by the control unit, so that the pin
35 is retracted to a position where it does not engage with the rear portion 2b of the carrier 2.

In this state, when the eject button is pushed in to take out the optical disc, the carrier 2 moves according to the pushing, whereby the pins 25 to 28 of the tray 1 are
It moves along the guide holes 17 to 20 of the carrier 2 and moves upward.

Further, when the tray 1 moves upward in this way, the optical disk is disengaged from the chucking mechanism of the turntable 33.

Then, when the upward movement of the tray 1 is completed, the lever
The disc cartridge 50 is pushed out in the ejecting direction by the restoring force when the 31, 32 return to the original position, whereby the disc cartridge 50 protrudes from the tray 1 to some extent in the ejecting direction.

In this way, the disc cartridge 50 is accommodated in the predetermined position and ejected.

[Problems to be Solved by the Invention] However, such a conventional device has the following disadvantages.

That is, in a state where the optical disc is mounted in the drive and the optical disc is accessed, the rear portion 2b of the tray 2 is locked by the pin 35 to prohibit the ejection of the disc cartridge in order to protect the optical pickup. However, when the eject button is pushed in with a large force, the pin 35 may be deformed or the carrier 2 may be damaged.

An object of the present invention is to provide a disc loading mechanism that solves the above-described inconveniences of conventional devices and prevents damage to the eject lock mechanism and the like.

[Means for Solving the Problems] According to the present invention, a disk cartridge that accommodates a disk made of a storage medium is positioned at a predetermined position, and when the eject button is pressed, the disk cartridge is positioned at the predetermined position in conjunction with it. In a disc loading mechanism provided with a carrier to be ejected and an eject prohibiting member for prohibiting the movement of the carrier when the eject button is pushed when the disc is accessed, an intermediate member arranged between the eject button and the carrier and an intermediate member The member and the carrier are locked with a predetermined urging force, and an elastic member is provided so that the deformation range of the eject button in the pushing direction is at least larger than the stroke amount of the eject button that can be pushed.

[Effect] Therefore, when the eject button is pushed in in the eject prohibited state, the pushing stroke is absorbed by the elastic deformation of the elastic member, so that the pushing force does not directly act on the eject prohibited mechanism. It is possible to prevent damage to members and the like.

Embodiments Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

1 and 2 show a disc loading mechanism according to an embodiment of the present invention. In the figure, the same parts as those in FIG. 3 and corresponding parts are designated by the same reference numerals.

With this disc loading mechanism, the eject button
The member 41 to be pushed by 40 is configured separately from the carrier 2, and a spring 42 whose initial tension is set to be slightly larger than the eject load is stretched between the member 41 and the carrier 2. ing.

That is, the member 41 is disposed between the carrier 2 and the frame 11, the end 41a of the member 41 on the side facing the eject button 40 is folded downward, and the eject button 40 is It contacts the end portion 41a.

The opposite end 41b of the member 41 protrudes from the hole 2c formed in the carrier 2, and the end 41b engages with the end surface of the hole 2c on the eject button side. Positioning is done in the direction of the eject button. Also,
The dimension of the hole 2c in the moving direction of the member 41 is set to a dimension corresponding to the movable range of the member 41.

The member 41 and the carrier 2 are provided with a window 41c and a window 2d for passing the spring 42, respectively.
One end of 2 is locked in a hole 41d formed in the end 41b side of the window 41c, and the other end of the spring 42 is formed in a hole 2e formed on the eject button side of the window 2d. Is locked to.

Accordingly, in the spring 42, the end portion 41b of the member 41 has the hole 2c.
A biasing force is applied between the carrier 2 and the member 41 so as to come into contact with the end surface of the eject button side.

With the above configuration, as described above, the disk cartridge
When the inserted optical disk 50 is chucked on the turntable 33 of the spindle motor and the drive operation is started, the solenoid 36 is turned on, which causes the pin 35 to move to the rear portion 2b of the carrier 2. It is located in an engageable manner.

In this state, when the eject button 40 is pushed in by the operator, the end surface of the eject button 40 abuts the end portion 41a of the member 41, and when the eject button 40 is pushed in, a state in which it is integrated by the biasing force of the spring 42. Then, the carrier 2 moves rearward as the member 41 moves.

However, since the rear portion 2b of the carrier 2 is locked by the pin 35, the carrier 2 moves along with the movement of the member 41 until the rear portion 2b is locked by the pin 35, but the rear portion 2b is locked by the pin 35. Then, since the movement of the carrier 2 is prohibited, after that, the operator who presses the eject button 40 is
A resistance force corresponding to the initial tension of the spring 42 is felt.

When the operator further applies force and pushes the eject button 40 with a force larger than the initial tension of the spring 42, the force acting on the member 41 when pushed is the spring 42.
Spent to deform (stretch).

Further, the limit position that can be normally pushed, that is, the member 41 is in a state where the operator pushes the eject button 40 until the tip of the eject button 40 coincides with the surface of the front panel member that guides the eject button 40. ,
It is displaced as shown by the dash-dotted line in FIG.
The force of the operator pressing the eject button 40 does not directly act on the carrier 2.

Therefore, by providing the pin 35 with rigidity that can withstand the force exerted by the spring 42, the eject lock mechanism will not be damaged even if there is an erroneous operation in which the eject button 40 is pressed during the eject lock.

When the access to the optical disc is completed and the optical disc is ready to be ejected, the solenoid 36 is turned off by the control unit and the pin 35 is moved to the rear portion of the carrier 2 as described above.
It is retracted to a position that does not engage with 2b.

In this state, when the eject button 40 is pushed in, the end surface of the eject button 40 contacts the end portion 41a of the member 41,
Further, when the eject button 40 is pushed in, the carrier 2 moves backward with the movement of the member 41 in a state of being integrated by the urging force of the spring 42.

At this time, since the initial tension of the spring 42 is set to a value larger than the eject load for operating the eject mechanism, the member 41 and the carrier 2 move as they are in an integrated state, and the eject operation similar to that described above is performed. Is done.

In this way, in this embodiment, even if the operator accidentally pushes the eject button 40 during the eject lock, the eject lock mechanism and the carrier 2 are not damaged.

Further, in this case, when the operator pushes the eject button 40 during the eject lock, it receives a resistance force due to the initial tension of the spring 42 after a while, and after that, the disc cartridge 50 is not ejected even if it is pushed,
At that point, the erroneous operation can be recognized.

Although the member 41 and the carrier 2 are connected via the spring 42 in the above-described embodiment, members other than the spring can be used.

Further, the present invention can be applied not only to the loading mechanism of the above-described embodiment, but also to any loading mechanism that ejects the disc cartridge by manually operating the eject button.

As described above, according to the present invention, the intermediate member disposed between the eject button and the carrier, the intermediate member and the carrier are locked with a predetermined urging force, and the eject button Since the range of deformation in the pushing direction is equipped with an elastic member that is at least larger than the stroke amount of the eject button that can be pushed, when the eject button is pushed in with the eject prohibited state, the pushing stroke is due to the elastic deformation of the elastic member. Since it is absorbed, the pushing force does not directly act on the eject prohibiting mechanism, so that it is possible to prevent damage to the eject prohibiting member and the like.

[Brief description of drawings]

FIG. 1 is a schematic perspective view showing a disc loading mechanism according to an embodiment of the present invention, FIG. 2 is a schematic sectional view showing an essential part of the disc loading mechanism according to an embodiment of the present invention, and FIG. 3 is a disc. FIG. 4 is a schematic perspective view showing a conventional example of a loading mechanism, FIG. 4 is a schematic perspective view illustrating an eject lock mechanism, and FIGS. 5 (a) and 5 (b) are schematic diagrams for explaining the action of the eject lock mechanism. FIG. 6 is a schematic view for explaining the operation of the disc loading mechanism. 2 ... Carrier, 2c, 2e, 41d ... Hole, 2d, 41c ... Window, 40
...... Eject button, 41 …… Member, 41a, 41b …… End, 42 …… Spring.

Claims (1)

[Scope of utility model registration request] 1. A carrier for positioning a disk cartridge accommodating a disk made of a storage medium at a predetermined position, and ejecting the disk cartridge positioned at the predetermined position in conjunction with the ejection button being pressed,
In a disc loading mechanism equipped with an eject prohibiting member that prohibits the movement of the carrier due to the pushing of the eject button when accessing the disc, an intermediate member disposed between the eject button and the carrier, and the intermediate member and the carrier are provided. A disk loading mechanism, characterized in that the elastic member is locked by a predetermined urging force, and has an elastic member whose deformation range in the pushing direction of the eject button is larger than at least the stroke amount of the eject button which can be pushed.