JPH0224865A - Information memory device - Google Patents

Abstract

PURPOSE:To prevent erroneous taking-out of an information recording medium during recording with a simple constitution and to improve recording reliability by only making the setting a cartridge ejecting state possible by operating a cam after the recording mode is completed and the running and rotation of the medium are stopped. CONSTITUTION:When an eject button 5B is depressed, a system controller rotates a rotary cam 19 counterclockwise by driving a motor 33 after confirming the stoppage of the rotation, etc., of an optical disk 22. As a result, the cam follower pin 18 of a slide cam 17 is depressed and a cam 17 is moved and, accordingly, a cartridge holder 20 is brought upward through cam sections 17A and 17B. When the holder 20 exceeds the height of the control section 30B of a holder lock 30, a cartridge 3 is pushed in the ejecting direction. Thereafter, the projecting section 19C of the cam 19 stops the rotation of the motor 33 by depressing a detection switch 37. Therefore, taking out of the cartridge is prevented during recording and highly reliable recording can be performed.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an information storage device using a cartridge containing an information recording medium, such as an optical disk drive device or an audio/video recording tape recorder device.

2. Description of the Related Art Conventionally, information storage devices of this type include, for example, floppy disk drive devices using a magnetic recording method, optical disk drive devices using a magneto-optical recording method, and a phase change method.

In these devices, a cartridge containing a floppy disk or an optical disk, which is an information recording medium, is inserted into the device and mounted at a predetermined position in the device, and then the information recording medium is rotated to read information using a magnetic head or an optical head. Recording and playback are performed.

When taking out the cartridge from the apparatus, the cartridge is taken out by force by pushing an ejection button facing outside the apparatus or by turning a rotating lever. (For example, Japanese Utility Model Application Publication No. 62-106396) After holding the cartridge containing the information recording medium to be inserted into the device, a motor is used to transport the cartridge to a predetermined mounting position in the device and from the mounting position to the ejection position. A device employing a so-called auto-loading method (for example, Japanese Patent Application No. 62-230101) is also conceivable.

Problems to be Solved by the Invention However, if the cartridge can be directly removed from the device by operating force from outside the device, there is a possibility that important Recording of information cannot be performed in a highly reliable state.In order to solve this problem, at least during recording, a method can be considered that prohibits the operator from operating the device from outside the device using a blocking lever operated by a plunger or the like. . However, in this case, in order to remove the cartridge from the device, the user must carefully observe the indicator lamp etc. to confirm that the recording state has ended, and then perform the ejecting operation again.
Not only is the operation complicated, but it also tends to cause erroneous operations depending on the timing of the operation force, such as when recording starts or ends. In terms of mechanism configuration, it is conceivable to memorize the operating force from outside the displacement device and operate the plunger to perform the ejection operation after the recording state is completed, but this would make the mechanism extremely complicated. It is.

In contrast, the first object of the present invention is to prevent the information recording medium from being taken out by mistake during recording, and to operate the information recording medium with a simple operation and an extremely simple configuration with high reliability. The purpose is to enable the built-in cartridge to be ejected from the device.

A second object of the present invention is to realize mounting and ejection of a cartridge containing an information recording medium into a device with an extremely simple configuration, and to prevent the information recording medium from being accidentally removed during recording. It is also to achieve the first purpose.

On the other hand, one issue is that when the power is cut off due to a power outage, the plunger cannot operate, so it is difficult to remove the information recording medium containing confidential information from the device and store it. If the cartridge runs out, or if it is an auto-loading device that uses a motor and mechanically holds the inserted cartridge in conjunction with the insertion operation and transfers it to a predetermined value, do not turn on the power. If the cartridge is inserted into the cartridge, there is an inconvenience that the cartridge cannot be removed unless the power is turned on. On the other hand, a window or hole is provided on the front of the device for emergency removal operation used in the event of a power outage, etc., and a tool such as a screwdriver is inserted to release the plunger lock by the operator's operating force from outside the device. , it is conceivable to perform a retrieval operation. In addition, in the case of an autoloading method using a motor, a deceleration mechanism including a worm and worm wheel is adopted for -a in order to ensure the loading/unloading speed of the cartridge and sufficient driving force. Since rotating the worm from the worm wheel side to which the means is connected results in a large load and is practically difficult, the worm must be directly rotated as many times as necessary for the ejection operation, or It is conceivable to temporarily cut off the driving force transmission system that leads to this, and then apply operating force by inserting a tool through a similar window or hole at a position with less driving load. However, in addition to the complexity of rotating the worm many times, if the operation force from outside the device is not cut off when the ejection operation is completed, the deceleration mechanism may exceed the movement range of the mounting means. It is easy to imagine that this avoidance mechanism would be extremely complicated, since the device mechanism would be destroyed due to the large force that is required to operate the device.

Even when applying a driving force by cutting off the driving force transmission system leading to the attachment means, as the mechanism becomes AM, there is a risk that it will be difficult to ensure the reliability of the connection when the driving force transmission system is reconnected. be. Furthermore, if a window or hole that is not normally used is provided on the front of the device, not only will the aesthetics be impaired, but there is also the risk that a tool may be accidentally inserted to remove the cartridge. In addition, it is generally difficult to operate when operating through a narrow hole or window, and if you try to make it easier, you will need a special tool, and if you lose that tool, it will naturally be impossible to remove it. becomes. Additionally, when the window is configured in the front, additional equipment components such as a sliding door that typically covers the window are required.

In contrast, a third object of the present invention is to make it possible to easily take out the cartridge containing the information recording medium even when the power supply to the device is cut off, such as during a power outage.

Furthermore, a fourth object of the present invention is to prevent the operation force from outside the apparatus from being provided in the event that the power supply to the apparatus is cut off, such as during a power outage, without providing a window or hole in the front of the apparatus (i.e., sufficient power is required for operation). The purpose of this invention is to easily add the device to the device without using any special tools such as a screwdriver, while ensuring a sufficient space.

Means for Solving the Problems In order to achieve the above-mentioned first object, the information storage device of the present invention has a cartridge containing an information recording medium placed in a predetermined position within the device in conjunction with the insertion operation into the device. A cartridge mounting means to be mounted; a cam means that does not engage during the cartridge mounting operation but engages with the cartridge mounting means only during the ejection operation to move the cartridge mounting means in the ejection direction; and a cam means for driving the cam means. The invention is characterized in that it has a driving means. In addition, the 2nd and 4th
Means and effects for achieving the above object will be described in detail later along with examples.

Operation In the means for achieving the first object, the cam means does not engage with the cartridge mounting means during the cartridge mounting operation, but engages with the cartridge mounting means only during the cartridge ejection operation to perform the ejection operation, and the cam means performs the ejection operation. Since it is driven only by the drive means that drives the cartridge, it does not interfere with the cartridge installation operation, and it is safe to use after the recording mode is completed and the information recording medium stops running or rotating. At the appropriate time, the cam means can be operated to move the cartridge mounting means in the ejection direction.

Examples Below, the present invention is applied to an optical disk drive device as an example, and the above-mentioned first embodiment is applied. A specific example for achieving the fourth objective will be described in detail. Figure 1 is the device! FIG. 2 is an exploded perspective view showing the main components constituting the inside of the device 1, and FIGS. 2 and 3 are schematic side views illustrating the operation of mounting the cartridge 3 in a predetermined position of the device 1, with only the main trap portion shown. , FIG. 4 is a plan view for explaining the operation of the cam means and the operation force transmission means for transmitting the operation force from outside the device, and FIG.
The figure is a schematic perspective view illustrating an operation for applying an operating force from the front of the device.

In FIG. 1, the device 1 is covered by a front panel 5 attached to the front and an exterior case 7, and the front panel 5 has an opening 5A into which a cartridge 3 containing an optical disc 2, which is an information recording medium, is inserted, and an opening 5A. A rotating lid 6 that normally covers the opening 5A and is rotated when the cartridge 3 is inserted, and an electric switch (not shown) that gives the device a command signal to take out the cartridge 3 installed in the device. ) is arranged behind the eject button 5B. In addition, cartridge 3 is
Optical disk 2 on the bottom surface when installed in device 1
is provided with a window portion 3D on at least the lower surface so as to directly face the objective lens 10 (in this embodiment, an example in which the window portion 3D is provided on both the upper and lower surfaces) is provided.
A slide shutter 4 covers and protects the cartridge 3 when not in use, and a cut-and-raised portion 2 having an inclined surface is provided on a cartridge holder 20 that stores and holds the cartridge 3.
00, which prevents the cartridge 3 from being inserted to the insertion depth when the cartridge 3 is inserted in the device 1 in an incorrect direction, and a slope portion 3A that prevents the cartridge 3 from being inserted to the insertion depth when the cartridge 3 is inserted in the device 1 in the normal direction; It has a cartridge contact portion 3C that comes into contact with the contact portion 30A of the holder lock 30 to be described. Further, a recess 3B is provided between the cartridge contact portion C and the slide shutter 4, into which an opener pin 27 of the slide shutter 4, which will be described later, is inserted. The optical disc 2 is mounted on a chassis 8 built into the device 1 and integrated with the exterior case 7 directly or via a damper (not shown) that reduces vibrations from outside the device! A disk table 9 is integrally rotated using a disk motor (not shown) as a driving source. Further, an actuator 11 for an objective lens 10 is mounted on the chassis 8 and is guided by a pair of guide shafts 12 and 13 to move in the radial direction of the disk table 9. Optical system components (not shown) such as a collimating lens, a focus and a tracking error detector are arranged, and the light from the optical path opening 14 is bent by a reflection mirror (not shown) in the actuator 11 and attached to the objective lens 10. The light is irradiated onto the optical disc 2. Further, on the chassis 8, a disk table 9 has an optical disk 2 built in the cartridge 3.
Make sure to engage [! A pair of positioning pins 15 and a pair of height determining pins 16 are respectively installed, and a slide cam 17 is provided on which the position and direction of movement are slidably guided.

The slide cam 17 has left and right integrated cam parts 17A117B.
is provided. The cartridge holder 20 has a pair of retaining pins 21 and 22 installed on both sides thereof, each of which engages with the cam portions 17A and 17B of the slide cam 17, and a pair of holder guide shafts 23 and 24 installed on the chassis 8. Positioning holes 20A and 20B are provided to engage with the slide cam 17 when the slide cam 17 moves in the direction of the arrow 40 in FIG.
Although the cartridge holder 20 is restricted from moving in the direction of the arrow 40, the cam portion 17A of the slide cam 17 is a slide provided at an angle of inclination in the direction of the arrow 41 in FIG. 3, which is the thickness direction of the cartridge 3 to be inserted. .

17B is the one to take over.

Of course, when the slide cam 17 moves in the opposite direction, the cartridge holder 20 rises. An opener arm 25 is provided on the upper part of the cartridge holder 20, and is rotatably supported by a shaft 26, with the opener pin of the cartridge 3 mentioned above planted at one end. The opener arm 25 locks at the end 25A an opener spring 28, which is a tension spring whose one end is locked to the cut-and-raised portion 20H of the cartridge holder 20, and thereby rotates in a direction that prevents insertion of the cartridge 3. It is energized. The rotation position is the recess 3 of the cartridge 3 as described above.
It is regulated by one end of the elongated hole 20F of the cartridge holder 20 so that the cartridge holder 20 enters into the position B. Also opener
An opener guide 29 is provided on the side of the opener pin 27 to prevent the arm 25 from lifting up during rotation. A holder lock 30 is provided which is slidably guided on the holder lock 8. The holder lock 30, which is a locking member of the cartridge holder 20, contacts the cartridge 3 inserted into the cartridge holder 20 at its cartridge abutting portion 3C, as shown in FIGS. A contact portion 30A located within the portion 2OC;
Furthermore, it usually has a regulating part 30B that comes into contact with the bottom surface of the cartridge holder 20 to lock and regulate its height.

Further, a tension spring 32, which is an elastic member, is stretched between the locking end 30C of the holder lock 30 and the locking end 17C of the slide cam 17. When this tension spring 32 comes into contact with the cartridge abutting part 3C of the cartridge 3 inserted into the abutting part 30A of the holder lock 30, it generates a biasing force in a direction to prevent the insertion, and at the same time, it applies force against the slide cam 17. This applies an additional force in the direction of arrow 40 in FIG. As a result, the cartridge 3 inserted into the cartridge holder 20 assembled to the slide cam 17 through the opening 5A is urged to descend in the thickness direction, and its downward movement position is regulated by the holder lock 30. The movement position of the slide cam is also regulated at the same time. Note that the position of the holder lock 30 due to the biasing force of the tension spring 32 is regulated by the holder guide shaft 23 and the shaft 32. On the other hand, a motor 33 is attached to the back side of the chassis 8 through a metal fitting.
The worm 34 that is integrated with the worm wheel 34 meshes with a worm wheel 35 that is mounted and pivotally supported by a metal fitting 38, and the pinion part 36 that is integrated with the worm wheel 35 is also mounted and supported pivotally on a metal fitting 38. This rotates a cam portion 19A disposed at a position where it meshes with the outer periphery of the rotary cam 19 and can be engaged with a cam follower bin 18 set on the slide cam 17. As shown in FIG. 2, the rotary cam 19 has a rotational position detection section 19-C, which is provided with projections 19C° having different rotation radii.
A detection switch 37 is provided to detect the rotation angle by 90 degrees. When the cartridge 3 is inserted, the cam follower bin 18 and the cam portion 1 of the rotary cam 19
The relative position of slide cam 1 with respect to 9A is as shown in Figure 4.
7 and the cam follower bin 18 are in a positional relationship that does not interfere with the movement of the cam follower bin 18 to the position indicated by the broken line in the figure. Furthermore, as shown in FIGS. 1 and 4, the slide cam 17 is provided with a long hole 17D, which is rotatably supported by a shaft 43C mounted on the chassis 8, and is operated from outside the device. A rotating lever 43, which is an operating force transmitting means for transmitting force to the slide cam 17, is engaged by a shaft 43A.

The rotary lever 43 is provided with a retaining end 43B for applying an operating force from outside the device, and when the slide cam 17 moves to the position shown by the broken line in FIG. Rotate to the indicated position.

At this time, the engaging end 43B is located below the cartridge 3 mounted in the device 1 as shown in FIG. It is placed in such a way that it can be pushed with the tip of a personal item.

The operation of the configuration of the above-described embodiment will be described next. First, as shown in Figure 1, insert the cartridge 3 into the device 2.
When the rotary lid 6 is rotated and inserted into the cartridge holder through the opening 5A provided in the front panel 5 of the cartridge 3, the opener is inserted into the recess 3B of the cartridge 3 in the process.
727 enters and further advances the insertion operation, the opener arm 25 rotates, slides the slide shutter 4 of the cartridge 3, and the cartridge 3
The optical disk 2 contained therein is exposed to the objective lens 10 by releasing the core portion 3D. As shown in FIG. 2, when the cartridge 3 is further inserted in the direction of arrow 39, the cartridge abutting portion 3C of the cartridge 3 abuts the abutting portion 30A of the holder lock 30, pulling the holder lock 30 against the spring 32. and move it.

During this time, the position of the slide cam 17 is biased in the direction of arrow 39 by the tension spring 32, and the cartridge holder 30 assembled therein is biased to descend in the thickness direction of the inserted cartridge 3. Its position is regulated by a regulating portion 30B of the holder lock 30.

When the cartridge 3 is further advanced, the height restriction to the cartridge holder 20 by the restriction part 30B is eventually removed, and the slide cam 17 is moved in the direction of the arrow 40 by the biasing force of the tension spring 32, as shown in FIG. ,
At the same time, the cartridge 3 is moved together with the cartridge holder 20 in the direction of arrow 41, and the cartridge 3 is mounted at a predetermined position on the chassis 8 by the positioning pin 15 and the height determining pin 16 on the chassis 8. In this case, the position of the holder lock 30 is determined by the side surface of the regulating part 30B coming into contact with the cartridge holder 20, and at the same time, the contact part 30A is cut off from contact with the cartridge contact part 3C of the cartridge 3, and the cartridge 3 The position of is determined by the positioning pin 15, which is set so that the cartridge 3 is located slightly beyond the position in the insertion direction of the cartridge 3 where the restriction of the cartridge 3 to the cartridge holder 20 by the restriction portion 30B ends. It is obtained by doing.

Also, if the insertion is too deep, the insertion position can be regulated.
A pair of holder guide shafts 23 installed on the chassis 8.
Cartridge holder 20 whose movement direction is regulated by 24
The relief part 20G and the contact part 30 of the holder lock 30
When one or more mounting operations are completed, the other is obtained by the contact between the cut-up part 20D of the cartridge holder 20 shown in FIG. 1 and the inclined part 3A of the cartridge 3. The relative position of the rotary cam 19 and the cam follower pin 18 that is set on the slide cam 17 is as shown in FIG. The camera is moving to the new position. Further, as described above, in this state, the operating end 43A of the rotary lever 43 is in a state where it can effectively receive an operating force from outside the apparatus as shown in FIG. After this mounting operation is completed, the optical disc 2 is irradiated with a laser beam through the objective lens 10 to perform an information recording/reproducing operation.

Next, to remove the cartridge 3, first press the eject button 5B provided on the front panel 5 shown in FIG. After confirming that the rotation of the optical disk 2 has stopped by a system controller (not shown) using a microcomputer or the like, the motor 33 is rotated, thereby rotating the rotary cam 19 in the direction of the upper arrow 42 in FIG. . Then slide cam 1 at the position corresponding to the broken line
The cam follower pin 18 of No. 7 moves the cam follower pin 18 toward the outer circumference of the rotary cam 19 and moves against the tension spring 32 in the direction opposite to the arrow 40 shown in FIG. The cartridge 3 also rises along with the cartridge 3 in its thickness direction. Then, when the raised position of the cartridge holder 20 eventually exceeds the height of the restriction part 30B of the holder lock 30, the holder lock 30 moves in the opposite direction of the arrow 40 due to the biasing force of the tension spring 32, and simultaneously locks the cartridge 3. It is pushed out in the discharge direction at the contact portion 30A. The rotation of the rotary cam 190 is stopped after the ejection operation of the cartridge 3 has been completed and the rotary cam 190 has been rotated to the rotation position shown in FIG.
7 is detected and the rotation of the motor 33 is stopped. To take out the cartridge 3 containing the optical disk 2 from the apparatus during this ejection operation or after the installation is completed and the power supply is cut off due to a power outage, etc., a rotary lever 43 facing the opening 5 is used as shown in FIG. As described above, the engaging end 43B of the knock type pencil 4
Press the retaining end 43B with the tip of a personal item such as 4.
This is possible by rotating the rotation lever 43 and thereby moving the slide cam 17 from the position shown by the broken line to the position shown by the solid line, as shown in the figure. At this time, rotary cam 1
The cam portion 19A with 9 is arranged around the outer periphery so that even if the cam follower pin 1B installed on the slide cam 17 moves in the outer circumferential direction by the movement range necessary for ejecting the cartridge 3 at any rotation angle, the cam portion 19A is A predetermined range is released in the direction.

Effects of the Invention As described above, the first objective of the present invention is to prevent the information recording medium from being taken out by mistake during recording, and to perform simple operations.
In order to make it possible to eject a cartridge containing an information recording medium from the apparatus with a very simple configuration and with high readability, it is possible to A cartridge mounting means for mounting a built-in cartridge in a predetermined position in the device in conjunction with the insertion operation into the device, and a cartridge mounting means that does not engage during the cartridge mounting operation but engages with the cartridge mounting means only during the ejection operation. This is realized by cam means (rotary cam 19 in the embodiment) for moving the means in the ejection direction and drive means (motor 33) for driving the cam means.

As a result, while recording on the information recording medium, normally,
The cartridge is not directly removed from the apparatus by operating force from outside the apparatus, and highly reliable information can be recorded.

Further, by using a plunger or the like to prohibit the operator from using any operating force from outside the apparatus during recording, it is possible to eliminate the cause of erroneous operation when the user carefully observes the indicator lamp or the like to confirm the end of the recording state and takes out the apparatus. Further, it does not require a complicated mechanical structure such as once storing an operating force from outside the device and then operating a plunger to perform a take-out operation after the recording state is completed.

The second object of the present invention is to achieve the installation and ejection of a cartridge containing an information recording medium into a device with an extremely simple configuration, while the first object of the present invention is to prevent accidental ejection of the cartridge during recording. In order to prevent this from happening, there is a cartridge holder that stores the cartridge containing the information recording medium when it is inserted into the device and that can be raised and lowered only in the thickness direction of the inserted cartridge, and a cartridge holder. a slide cam that engages with the slide cam and raises and lowers the cartridge holder by its movement;
A lock member has a contact part that contacts the front surface of the cartridge to be inserted, and a regulating part that contacts the front surface of the cartridge holder to regulate the height direction position of the cartridge holder. an elastic member stretched between the slide cam and the lock member to generate a biasing force in a direction that prevents insertion of the slide cam;
This is realized by a cam means that does not engage when the slide cam moves the cartridge in the direction of lowering the cartridge, but engages to move the cartridge only in the direction of raising it, and a drive means that drives the cam means.

As a result, a single elastic member can secure the driving force for lowering and mounting the cartridge inserted into the cartridge holder into a predetermined position, energizing it, and ejecting it from the device, and it is possible to provide a cartridge mounting means with an extremely simple structure. At the same time, it is possible to eliminate the inconvenience of accidentally removing the cartridge during recording.

Regarding the third object of the present invention, which is to enable easy removal of the cartridge containing the information recording medium when the power supply to the device is cut off, such as during a power outage,
Cartridge mounting means for mounting a cartridge containing an information recording medium at a predetermined position in the apparatus; and cam means that does not engage during the cartridge mounting operation but engages with the cartridge mounting means only during the ejection operation to move the cartridge in the ejection direction. This is realized by a driving means for driving the cam means, and an operating force transmitting means for transmitting an operating force from outside the apparatus to the cartridge mounting means in a direction in which the cartridge is ejected from the apparatus.

As a result, even if the power is cut off due to a power outage, etc., the cam means does not engage with the cartridge mounting means during the cartridge mounting operation, so even after mounting, the operating force from outside the device is applied to the mounting means in the opposite direction to the mounting direction. This makes it possible to remove the information recording medium on which confidential information is recorded from the device and store it. In the case of an auto-loading system using a motor, the rotating shaft of the motor can be directly rotated as many times as necessary for the ejection operation, or the drive power transmission system leading to the mounting means can be cut off, and the drive load can be moved to a position with less drive load. If you insert a tool through a hole in the front of the device and apply operating force, there is no need for a complicated configuration, and if you directly rotate the rotating shaft of the motor, you can detect when the ejecting operation is complete. This also solves the problem that if the operating force from outside the device is not cut off, the mounting means may be operated with a large force via the deceleration mechanism beyond the movement range, which may destroy the device mechanism.

The fourth objective of the present invention is to reduce the amount of operating force required from outside the device when the power supply to the device is cut off, such as during a power outage, without having to provide windows or holes on the front of the device. To ensure space and to be able to easily add it to the device without using special tools such as a screwdriver,
It includes an opening provided at the front of the device for inserting a cartridge containing an information recording medium into the device, a rotating lid that covers the opening, and a drive source for mounting the inserted cartridge at a predetermined position in the device. a cartridge mounting means; and an operating force transmitting means in which an engaging end capable of transmitting an operating force from outside the apparatus in a direction in which the cartridge is ejected from the apparatus to the cartridge mounting means is exposed at a position where it can be operated from an opening. This is achieved by Since the operating force is applied through the opening in this way, there is no need to provide windows or holes that are not normally used on the front of the device, which not only maintains the aesthetics but also allows cartridges to be ejected through narrow holes or windows. The case is generally difficult to operate, and there is no need for special tools that would be required to make it easier, and there is no inconvenience that would make it impossible to remove the tool if the tool is lost. It also provides the advantage of not requiring additional equipment components, such as sliding doors, which normally cover windows when configured in the front.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view showing the main components constituting the inside of the device, and Figs. 2 and 3 are schematic side views showing only the main parts and explaining the operation of installing the cartridge in a predetermined position of the device. 4 is a plan view for explaining the operation of the cam means and the operation force transmission means for transmitting the operation force from outside the device, and FIG. 5 is a schematic diagram for explaining the operation for applying the operation force from the front of the device. FIG. l...device, 2...optical disk, 3.
... Cartridge, 5A ... Opening, 6
...Rotating lid, 8...Chassis, 17.
...Slide cam, 19...Rotary cam, 20...Cartridge holder, 30...
...Holder lock, 30A...Contact part, 3
0B...Restriction part, 32...Tension spring, 33...Motor 243...Operating force transmission lever

Claims (4)

[Claims] (1) Cartridge mounting means for mounting a cartridge containing an information recording medium at a predetermined position in the device in conjunction with the insertion operation into the device; and a cartridge mounting means that does not engage during the cartridge mounting operation but only during the ejection operation. An information storage device comprising: a cam means that engages with a mounting means to move the cartridge mounting means in the ejection direction; and a drive means that drives the cam means. (2) A cartridge holder that accommodates a cartridge containing an information recording medium when it is inserted into a device and that can be raised and lowered only in the thickness direction of the inserted cartridge; a locking member having a slide cam that raises and lowers the cartridge holder, a contact portion that contacts the front surface of the inserted cartridge, and a regulating portion that contacts the cartridge holder to regulate the height direction position; an elastic member stretched between the slide cam and the locking member to generate a biasing force in the direction of lowering the cartridge holder and in the direction of preventing the locking member from inserting the cartridge; Claim (1) characterized in that it has a cam means that does not engage when moving in the direction of lowering but engages to move only in the direction of raising, and a drive means that drives the cam means. ) information storage device. (3) Cartridge mounting means for mounting a cartridge containing an information recording medium in a predetermined position in the apparatus; and a cartridge mounting means that does not engage with the cartridge during the mounting operation of the cartridge, but engages with the cartridge mounting means only during the ejection operation of the cartridge. cam means for moving the mounting means in the ejection direction; driving means for driving the cam means; and an operation for transmitting an operating force from outside the apparatus to the cartridge mounting means in a direction in which the cartridge is ejected from the apparatus. An information storage device comprising a force transmission means. (4) An opening provided at the front of the device for inserting a cartridge containing an information recording medium into the device, a rotating lid that covers the opening, and mounting the cartridge at a predetermined position in the device. a cartridge mounting means including a drive source, and an engaging end capable of transmitting an operating force from outside the apparatus in a direction in which the cartridge is ejected from the apparatus to the cartridge mounting means, in a position where it can be operated from the opening. 1. An information storage device comprising: a means for transmitting operating force;