JP2003059160A - Cartridge holding device and disk device using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simplify and make it easily automated the assembly work as the configuration of a cartridge holding device. SOLUTION: Related parts for inserting, holding and ejecting a cartridge are located on the surface of a cartridge holder opposite to the cartridge and on the surface of the cartridge holder, a hole for shutter opener through and a hole for guide are continuously provided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cartridge holding device for holding a cartridge containing a disc such as an optical disc at a predetermined position with a shutter open.

[0002]

2. Description of the Related Art For example, in a conventional cartridge type optical disc apparatus, a cartridge containing an optical disc covers an opening provided in a case of a molded product with a shutter made of a metal plate so as to be opened and closed. At present, cartridges of small-diameter optical discs have become mainstream. For example, Japanese Patent Laid-Open No. 5-54506 describes a portable optical disc, and also a DVD-RAM format video camera using an 80 mm optical disc. It has already been commercialized. In these conventional cartridges, when the disk device is loaded into the cartridge holding device, the shutter is opened by the insertion operation of the cartridge into the cartridge holding device, and the tip of the holding mechanism is engaged with the concave portion provided on the side surface of the cartridge to load the cartridge. The cartridge holder is held, and the cartridge holder is moved to the spindle motor side in the holding state, and the optical disk in the cartridge is engaged with the turntable provided above the spindle motor to rotate. FIG. 16 is a central cross-sectional view of a rotating arm 162 'in the prior art. A torsion spring 169 'is provided on the lower surface side of the cartridge holder 16, and the shutter opener 16 is provided for opening the shutter when the cartridge is inserted.
3'is configured to be assembled from the upper and lower sides of the cartridge holder 16 and connected to the rotating arm 162 '.

[0003]

For example, in the above-mentioned prior art, the components of the shutter opening mechanism in the cartridge holding device are separately arranged on both sides of the cartridge holder, and the cartridge holder is incorporated into the cartridge holder. Since the configuration is performed from the side, it is necessary to reverse the cartridge holder and alternately assemble and adjust the parts from both sides during the assembling work of the holding device. Therefore, the assembling work is complicated, the number of steps is large, and an automatic reversing mechanism of the cartridge holder is required for automation, which may easily lead to an increase in product cost.
In view of the situation of the above-mentioned conventional technique, an object of the present invention is to provide a cartridge holding device having a configuration that allows easy assembling work and is easy to automate. The purpose of the present invention is to
It is to provide a technique capable of solving such problems.

[0004]

In order to solve the above-mentioned problems, the present invention basically arranges a shutter opening member, a spring for biasing, etc. on one surface side of a cartridge holder. , Even if the cartridge holder is not inverted,
The shutter opening member, the spring, and other parts can be assembled from one surface side. Specifically, (1) a cartridge holder (corresponding embodiment: reference numeral 16) that constitutes the base of the cartridge holding device as a cartridge holding device that holds the cartridge in a predetermined position with the shutter open. ), And a shutter opening member (corresponding embodiment: reference numeral 163) that moves in the plane of the cartridge holder accompanying the inserting operation of the cartridge into the holding device and opens the shutter of the cartridge by the moving operation. A rotating member (corresponding embodiment: reference numeral 162) that is engaged with the shutter releasing member and is rotationally displaced around a fulcrum by the moving operation of the releasing member, and the rotating member is attached in a direction to reduce the rotational displacement. A biasing spring (corresponding embodiment: reference numeral 169), and the rotating member and the spring are provided on the cart with respect to the cartridge holder. The cartridge holder is arranged on the second surface side opposite to the first surface side into which the ridge is inserted, and the cartridge holder has the shutter opening member from the second surface side to the first surface side. The rotating member, the spring, and the shutter opening member are configured to have a through hole (corresponding embodiment: reference numeral 300) with respect to the cartridge holder from the second surface side of the cartridge holder. The configuration is such that it can be embedded. (2) A cartridge holder (corresponding embodiment: reference numeral 16) that forms the base of the holding device as a cartridge holding device that holds the disk-containing cartridge in a predetermined position with the shutter open, and the holding device. A shutter opening member (corresponding embodiment: reference numeral 163) that moves in the cartridge holder plane accompanying the insertion operation of the cartridge into the apparatus and opens the shutter of the cartridge by the movement operation, and the cartridge holder plane. A rod-shaped support member fixed in a substantially upright shape (corresponding example:
Reference numeral 164) and a tubular portion (corresponding example:
A rotating member (corresponding embodiment: reference numeral 162) that is engaged with the shutter opening member by the movement of the shutter opening member (corresponding embodiment: reference numeral 162), and a coil portion is arranged substantially concentrically with the supporting member. And a torsion coil spring (corresponding embodiment: reference numeral 169) for biasing the rotating member in a direction in which one spring end is engaged with the rotating member to reduce the rotational displacement. The material, the rotating member, and the torsion coil spring are arranged on the second surface side of the cartridge holder opposite to the first surface side into which the cartridge is inserted, and the cartridge holder is The shutter opening member is configured to have a hole portion (corresponding embodiment: reference numeral 300) that can pass from the second surface side to the first surface side, and the pillar member, the rotating member, and the twist member. The coil spring and the shutter release member are From the second surface side of the ridge holder and configured that is to be incorporated to the cartridge holder. (3) In the above (1) or (2), the cartridge holder has a guide slit continuous with the hole,
The shutter opening member is configured to be engaged with the guide slit and move along the slit when the cartridge is inserted. (4) A cartridge holder (corresponding embodiment: reference numeral 16) that constitutes the base of the holding device as a cartridge holding device that holds the disc-containing cartridge in a predetermined position with the shutter open, and the holding device. A shutter opening member (corresponding embodiment: reference numeral 163) that moves in the plane of the cartridge holder accompanying the insertion operation of the cartridge into the apparatus and opens the shutter of the cartridge, and the shutter opening member A pivoting member (corresponding embodiment: reference numeral 162) that is engaged and pivotally displaced about a fulcrum by the moving operation of the opening member, and a spring (corresponding to the embodiment) that biases the pivoting member in a direction to reduce the pivotal displacement. Example: reference numeral 169) and the convex portions (corresponding example: reference numerals 252A and 252B) are elastic members (corresponding example: reference numeral 2).
51A, 251B), the elastic member is fixed to the cartridge holder side, and when the cartridge is inserted in the normal direction with respect to the cartridge holding device, the cartridge has a predetermined first insertion. In the state where it reaches the position, the convex portion is the restoring force of the elastic member,
When the cartridge is inserted into the first concave portion (corresponding embodiment: reference numeral 154A, 154B) of the side surface of the cartridge, while the cartridge is inserted in the direction opposite to the normal direction with respect to the cartridge holding device, the cartridge At the second insertion position before the first insertion position, the convex portion is the restoring force of the elastic member, and the second concave portion on the side surface of the cartridge (corresponding embodiment: reference numeral 153A, 153B). An engaging member that is engaged with the cartridge and prevents the cartridge from moving to the second insertion position, the rotating member and the spring being the first member for inserting the cartridge into the cartridge holder. The second surface side opposite to the first surface side, and the cartridge holder has a hole through which the shutter opening member can pass from the second surface side to the first surface side. Have Constructed, the pivoting member, the spring, the shutter opening member, and the engagement member, a structure that is to be incorporated to the cartridge holder from said second surface side of the cartridge holder. (5) In the above (4), the engaging member has the convex portion made of a plastic material. (6) In any one of (1) to (5) above, the rotating member is made of a plastic material. (7) As a disc device, the cartridge holding device according to any one of (1) to (6) above, and a signal processing circuit that processes a signal for recording or reproducing on or from the disc,
And a disk drive circuit that rotationally drives the disk via a motor.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. The embodiment is an embodiment in the case of an optical disc video camera as a portable disc device.
In the optical disk video camera of the embodiment, the image, sound, etc. recorded on the optical disk can be reproduced and viewed on the spot where the image was taken. FIG. 1 is an exploded view of essential parts of an optical disk video camera according to an embodiment of the present invention. In FIG. 1, an optical disc video camera 1 includes a front case 2, an R case 3, an L case 4, a disc cover 5, a rear case 6, and an E case.
It is composed of a VF (Electro View Finder) unit 7, an LCD unit 8 and the like. The front case 2 can be provided with a lens unit 12 for taking an image viewed through the EVF unit 7, a strobe board 10 for causing the strobe 9 to emit light, and a microphone 11 for taking in sound. Further, the LCD unit 8 includes a display unit capable of displaying captured images, images reproduced from a mounted recording medium, and the like. On the circuit boards 13a and 13b, a signal processing circuit for performing signal processing for recording or reproducing an image signal formed from an image captured by the lens unit 12 or an audio signal formed from audio captured by the microphone 11 on the optical disc. Also, circuits for controlling and driving the entire optical disc video camera 1, such as a drive circuit for driving a motor for rotating the optical disc, are formed. The mechanical unit 14 mounts an optical disk at a predetermined position, irradiates the disk with light in a rotating state, and records or reproduces an image signal or an audio signal.

FIG. 2 shows the optical disk video camera 1 of FIG.
FIG. 3 is a perspective view of the disk cover 5 as viewed from the back side thereof, showing a state in which the disc cover 5 is opened. In FIG. 2, the cartridge 15 in which the optical disk as the recording medium is stored is inserted into the cartridge holder 16 of the cartridge holding device in the mechanical section 14, and the cartridge 15 is pushed further into the cartridge holder 16, so that the cartridge holder 16 is The cartridge 15 is locked. When the cartridge 15 is locked, the shutter 15 of the cartridge 15 is
Since 1 (described later) is in an open state, the optical disc is exposed. When the disc cover 5 is closed after the cartridge 15 is locked, the cartridge 15 is mounted at a position where video and audio can be recorded and reproduced, and the optical disc video camera 1 can record and reproduce video and audio. . On the other hand, when removing the cartridge 15, the eject button (not shown) of the optical disk video camera 1 is used.
By pressing, the optical disc video camera 1 releases the locked state of the disc cover 5. Then, by opening the disc cover 5, the cartridge holder 1
6 unlocks the cartridge 15 and ejects the cartridge 15. Therefore, the cartridge 15 can be taken out. In the description of this embodiment, the upper surface, the lower surface, the front surface, the back surface, the left side surface, and the right side surface refer to the directions shown in FIG. 2.

3A and 3B are views showing a configuration example of the cartridge 15 used in the optical disc video camera 1, FIG. 3A is a plan view, and FIG. 3B is a side view when the configuration of FIG. Is. In FIG. 3, the cartridge 15 accommodates an optical disc 156 (not shown in the figure) inside, and the optical disc is exposed to the outside when the shutter 151 is opened. The optical disk 156 housed in the cartridge 15 includes a type capable of recording data such as video and audio on both front and back surfaces, and a type capable of recording data such as video and audio on only one side.
The structure of will also change. Here, a type in which data such as video and audio can be recorded on both front and back sides will be described. In this type, the shutter 151 is configured to open in both directions A and B. Further, the cartridge 15 has positioning holes 152A and 152B penetrating the front and back surfaces and cutout portions (meaning cutout portions) 153A and 153B. The positioning holes 152A and 152B and the cutout portions 153A and 153B will be described later. In addition,
Since the back surface of the cartridge 15 has substantially the same structure as the front surface, the description of the back surface will be omitted. Cartridge 1
In addition to the cutout portion 153B, the concave portion 154
B is provided. In addition, a guide portion for guiding opening / closing movement of the shutter is provided.

The cartridge mounting mechanism of the optical disk video camera 1 will be described below. FIG. 4 is a perspective view showing the structure of the mechanical unit 14 when the mechanical unit 14 is viewed from the diagonally upper right side. In the following description, the cartridge insertion direction and the cartridge ejection direction respectively mean the directions shown in FIG. The mechanical unit 14 has a cartridge holder 16, a mechanical chassis 17, a clamp holder 18, and a bracket 19. Shock absorption damper (not shown)
However, the mechanical chassis 17 is fixed to the R case 3 of the optical disc video camera 1. On the other hand, cartridge holder 1
6 and the clamp holder 18 are rotatably attached to the mechanical chassis 17 via a bracket 19 (however, if the rotation axes of the cartridge holder 16 and the clamp holder 18 are not the same, or if the clamp holder 18 is an optical disc video). In some cases, the structure is attached to the case of the camera 1.). With the opening / closing operation of the disc cover 5, the cartridge holder 16 and the clamp holder 18 rotate in the direction of the upper surface and the lower surface. FIG. 4 shows the state of the mechanical portion 14 when the disc cover 5 is open.
The cartridge holder 16 is integrally provided with guide portions 161A and 161B that guide the inserted cartridge 15. Further, the shutter 151 of the inserted cartridge 15 is provided on the upper surface of the cartridge holder 16.
Arm 16 as a rotating member that operates to open
2, and a shutter opener 163 as a shutter opening member is attached. The cartridge holder 16 has a guide hole (guide slit) 167 and a rotation hole 166 on the upper surface thereof, and the shutter opener 163.
Is guided by the guide hole 167 in the direction of opening the shutter 151 as the cartridge 15 is inserted.
The rotation hole 166 is provided in the rotation portion of the pin 165 (shown in FIGS. 6 and 15). The pin 165 is a rotating arm 162.
Is provided in the middle of, and contacts both end surfaces of the rotation hole 166 to regulate the movable range of the rotation arm 162. Rotating arm 16
2 is a shutter opener 1 centered on the shaft 164.
It rotates with the movement of 63. FIG. 15 shows the rotating arm 16
It is a center sectional view of FIG. A torsion coil spring 16 is provided between the upper surface of the cartridge holder 16 and the rotating arm 162.
9 is arranged, one end is brought into contact with the upper surface cut-and-raised portion of the cartridge holder 16, and the other end is bent to rotate the arm 16.
When the cartridge 15 is inserted, the rotation arm 16 is brought into contact with the intermediate square hole portion 2 to eject the cartridge.
We are pushing 2. The shutter opener 163 includes a contact portion and a guide portion. The contact portion with the shutter 151 is on the lower surface of the cartridge holder, and the guide portion engages with the guide hole 167 to regulate the movement direction and guide the guide. Both the hole 167 and the shutter opener guide hole provided at the tip of the rotating arm 162 are slid and moved.

The shutter opener 163 has an abutment portion (abutment portion with the shutter 151 of the cartridge) located on the lower surface of the cartridge holder 16 (lower surface side in the configuration of FIG. 4) and an upper surface of the cartridge holder 16 (FIG. 4). In this case, the shutter opener 163 has the contact portion side, which is provided continuously with the guide hole 167, when the shutter opener 163 is assembled. 5, FIG. 6, FIG. 7, FIG. 9, FIG. 11 and FIG.
3) is passed from the upper surface side of the cartridge holder 16 to the lower surface side. After passing through the guide part, guide part 167
Engage with. In the engaged state, the guide portion is such that the protruding portion on the upper surface side of the cartridge holder 16 has the rotating arm 162.
Is inserted into the guide hole provided at the tip of the. At the time of insertion, the enlarged part is passed through one side of the shutter opener guide hole middle part shown in FIG. Rotating arm 16
2, so shutter opener 163
Since the end face of the shutter opener guide hole on one side is in contact with the guide portion, the operation of the shutter opener is smooth if the end face side in this direction is a straight line or a smooth curve as shown in FIG. Since the structure and the assembling method are as described above, the assembling work can be performed without reversing the cartridge holder.

On the upper surface of the cartridge holder 16, a lock arm 20A and a lock release arm 2 are provided.
1A is attached. The lock arm 20A has a lock pin 201A, a boss 202A, and a coil spring attachment portion 203A, and is attached rotatably around a shaft 204A. Since the lock arm 20B is similar to the lock arm 20A, the description thereof will be omitted.
In addition, the lock release arm 21A has a contact portion 211.
A, a boss 212A, and a coil spring attachment portion 213A are provided, and are attached so as to be rotatable around a shaft 214A. On the other hand, the lock release arm 21B has a contact portion 2
11B, contact portion 212B, and coil spring mounting portion 213
B, and is attached so as to be rotatable around a shaft 214B. A leaf spring 22 is attached to the lock release arm 21B, and a hook 23 is attached to the tip of the leaf spring 22. The coil spring 24A is attached to the coil spring attachment portion 203A at one end and to the coil spring attachment portion 213A at the other end, and the coil spring 24B is attached to the coil spring attachment portion 203B at one end and the coil spring attachment portion 213B at the other end.

Sliders 25A and 25B are mounted on the upper surface of the cartridge holder 16. Slider 2
5A is provided with rectangular holes 253A and 254A, and the slider 25B is provided with rectangular holes 253B and 254B, respectively. The rectangular holes 253A, 254A and the rectangular hole 253 are provided.
B and 254B are formed in parallel with each other. The slider 25A has pins 27A, 28A provided on the cartridge holder and rectangular holes 253A, 254A.
And is attached in a state of being biased by the coil spring 26A. Similarly, the slider 25B has rectangular holes 25 in the pins 27B and 28B provided on the cartridge holder.
3B and 254B are inserted, and the coil spring 26B is attached in a state of being biased. In addition, the sliders 25A, 25
Leaf springs 251A and 251B are integrally attached to B, one end of which is bent at a right angle and extends to the side surface of the cartridge holder 16. Further, plastic hooks 252A and 252B are attached to the tips thereof, and engage with the recesses 154A and 154B on the side surface of the cartridge 15 when the cartridge is fully inserted.

The mechanical chassis 17 has pins 171A and 17A.
1B, and the pins 171A and 171B are provided at positions where they are inserted into the above-described positioning holes 152A and 152B when the cartridge 15 is normally inserted. Further, the mechanical chassis 17 is provided at a pickup (not shown) for recording or reading data such as video and audio on the optical disc 156, a spindle motor (not shown) for rotating the optical disc 156, and a tip of the spindle motor. In addition, a turntable (not shown) for sandwiching the optical disk 156 is provided together with a clamper 181 (described later).

The clamp holder 18 is a clamper 1 that holds the optical disk 156 together with the turntable 301.
81, a release arm 182 and a pin 183.
The release arm 182 is rotatably attached to the clamp holder 18 by a pin 183.

As described above, in the structure of this embodiment, all members related to the insertion, holding, and discharging operations of the cartridge 15 are arranged on the upper surface of the cartridge holder, and the members are not arranged on both side surfaces thereof. By doing so, the size of the cartridge holder 16 in the direction of both side surfaces can be suppressed to the size of the width dimension W of the cartridge plus the plate thickness of both side surfaces of the cartridge holder 16. As a result, the height dimension of the optical disc video camera 1 can be reduced.

Next, the operation of the main parts in FIG. 4 will be described. 5 to 8 are explanatory views for mounting the cartridge 15 in the optical disc video camera 1. FIG. 5 is a top view showing a state in which the cartridge 15 is normally inserted halfway into the cartridge holder 16, and FIG.
5 is a bottom view showing a state in which the cartridge 5 is normally inserted halfway in the cartridge holder 16, and FIG. 7 is a top view showing a state in which the cartridge 15 is completely inserted, that is, a state in which the cartridge 15 is locked in the cartridge holder 16.
Indicates that the cartridge 15 is completely inserted, that is,
FIG. 6 is a bottom view of the cartridge 15 locked by the cartridge holder 16. The mechanical chassis is not shown.

5 to 8, the lock pin 201A is shown.
The distance D between the lock pin 201B and the
Is shorter than the width W of the lock pin 201A, the distance between the lock pin 201A and the lock pin 201B increases from D to D ′ as the cartridge 15 is inserted. That is, the cartridge 1
With the insertion of 5, the lock pins 201A and 201B come into contact with the arc portions F and G at the four corners of the cartridge 15, respectively, and are guided by these arc portions, so that the lock arm 20A is centered around the shaft 204A. Rotate and lock arm 2
OB rotates about the shaft 204B. As a result, the distance between the lock pin 201A and the lock pin 201B becomes D '. In addition, with the rotation of the lock arms 20A and 20B,
The coil springs 24A and 24B extend and the lock pin 201A
A force for returning the distance D ′ between the lock arm 201A and the lock pin 201B to the distance D is applied to the lock arms 20A and 20B.

Further, as shown in FIGS. 5 and 6, a torsion coil spring 169 urges the rotating arm 162,
The shutter opener 163 is arranged at a position where it abuts against the end of the shutter 151 of the cartridge 15. When the cartridge 15 is pushed in from the state shown in FIGS. 5 and 6, the lock pins 201A, 201B
Are notches 153A and 1 of the cartridge 15, respectively.
It will be located at 53B. At this time, the shaft 20
The lock arm 20 that was rotating around 4A and 204B
Since A and 20B are returned by the coil springs 24A and 24B, the lock pins 201A and 201B respectively
The cutout portions 153A and 153B enter the inside. Further, the shutter opener 163 is guided by the guide hole (guide slit) 167 while being in contact with the end portion of the shutter 151 of the cartridge 15, and shown in FIGS. 7 and 8 from the position shown in FIGS. 5 and 6. To the open position and open the shutter 151. The rotating arm 162 is also rotationally displaced from the position shown in FIGS. 5 and 6 to the position shown in FIGS. 7 and 8 as the shutter opener 163 moves. At this time, a force to return (close) to the shutter 151 of the cartridge 15 acts, and this force acts to eject the cartridge 15 from the cartridge holder 16. However, the lock pin 201A,
201B is a cutout portion 153A of the cartridge 15, 1
Since it has entered 53B, this prevents the ejection of the cartridge 15. That is, the lock pin 20
The cartridge holder 16 holds the cartridge 15 at a position where information can be recorded on or reproduced from the optical disc 156 by the 1A and 201B resisting the closing force of the shutter 151. Further, in the holding state, the spring hooks 252A and 252B provided at the tips of the leaf springs 251A and 251B attached to the sliders 25A and 25B are engaged with the recesses 154A and 154B on the side surface of the cartridge 15, respectively. . The sliders 25A and 25B are the coil spring 2
6A and 26B are urged to return from the positions shown in FIGS. 7 and 8 to the positions shown in FIGS. 5 and 6.

FIG. 9 is a perspective view of the mechanical section 14 in a state where the cartridge 15 is held in the cartridge holder 16 and then mounted on the mechanical chassis 17. In addition, FIG.
FIG. 10 is a side view of the mechanical section 14 in the state shown in FIG. 9. 9 and 10, after the cartridge holder 16 holds the cartridge 15 at a position where information can be recorded or reproduced on the optical disc 156, the disc cover 5 of the optical disc video camera 1 is closed. The cartridge holder 16 and the clamp holder 18 from the position shown in FIG. 7 and FIG.
And rotate to the position shown in FIG. At this time, in the clamp holder 18, the clamper 181 has the spindle motor 3
The clamper 30 clamps the optical disk 156 together with the turntable 301 by rotating the clamper 30 to a position where the optical disk 156 can be clamped together with the turntable 301. This state is a position where information can be recorded or reproduced on the optical disc 156. In the process of rotating the cartridge holder 16 and the clamp holder 18 as described above, the pin 171 on the mechanical chassis 17 shown in FIG.
A and 171B are positioning holes 152 of the cartridge 15.
The cartridge 15 is inserted into the A and 152B, and the cartridge 15 is positioned on the mechanical chassis 17.

Next, the case where the cartridge 15 is inserted backward (erroneously inserted) will be described. In FIG. 11, the cartridge 15 is inserted in a posture opposite to the normal posture (reverse insertion (erroneous insertion)).
FIG. 9 is a top view showing a state in which the lock arms 20A and 20B lock the reverse insertion of the cartridge 15 in the case of doing so. Further, FIG. 12 shows that when the cartridge 15 is inserted from the opposite direction, the leaf springs 251 of the sliders 25A and 25B are inserted.
A, a spring hook 252A at the tip of 251B,
FIG. 252B is a top view showing a state where 252B locks the reverse insertion of the cartridge 15. 11 and 12, when the cartridge 15 is inserted from the opposite direction, the lock pins 201A and 201B abut on the arcuate portions J and K at the four corners of the cartridge 15, respectively, as in the case of normal insertion. , The lock arm 2 is guided by the arc portion.
0A and 20B rotate around shafts 204A and 204B. At the same time, the coil springs 24A and 24B give a force for returning to the original state. However, after that, the lock pin 201A is attached to the cutout portion 153B of the cartridge 15, and the lock pin 201B is attached to the cartridge 15
When the cutout portion 153A of the lock arm 20 is reached.
A and 20B return to their original positions and lock pins 201A and 201B
Will be located in the notch. Cartridge 1
The cutout portions 153A and 153B of No. 5 have a shape in which the shutter side is cut substantially perpendicular to the cartridge insertion direction and the opposite side is cut obliquely. Therefore, the lock pins 201A and 201B come into contact with the substantially vertical portions of the cutout portions 153A and 153B of the cartridge 15, whereby the insertion of the cartridge 15 is locked. That is, the lock pins 201A and 201B prevent erroneous insertion of the cartridge 15. In addition, the lock pin 201A, 201B, the cartridge 1
5, the flat portions are provided on the sides of the cutout portions 153A, 153B that come into contact with the substantially vertical portions, and the lock arms 20A, 2
0B rotating shafts 204A and 204B and lock pin 201
Connect the lines connecting A and 201B to the cartridge 15
By configuring it to be substantially parallel to the insertion direction,
The lock pins 201A and 201B once located in the cutouts 153A and 153B are not cut into the cutouts 153A and 15B.
3B can be prevented from coming off from the inside. Further, when the erroneous insertion prevention mechanism by the lock pins 201A and 201B does not work, the reversely inserted cartridge 15 has the spring hook 252 at the tip of the leaf springs 251A and 251B attached to the sliders 25A and 25B.
It contacts with A and 252B. The spring hook 252
The tip shapes of A and 252B are plane shapes that are substantially perpendicular to the cartridge insertion direction. Since the spring hooks 252A and 252B that are in contact with the cartridge 15 are integrated with the leaf springs 251A and 251B that have elastic restoring force in a direction substantially perpendicular to the cartridge insertion direction, the arc portions J at the four corners of the cartridge 15 are formed. , Escape as directed by K section. Then spring hook 252
A and 252B are notches 153 of the cartridge 15.
When reaching A, 153B, the spring hook 252A,
252B returns to its original position and is located within the notch. Since the tip shapes of the spring hooks 252A and 252B are flat surfaces that are substantially vertical, the spring hooks 252A and 252B come into contact with the substantially vertical portions of the cutout portions 153A and 153B of the cartridge 15, and the slider 2
5A and 25B move in the insertion direction together with the cartridge 15. When the sliders 25A and 25B reach the depth of the movement stroke, the movement stops together with the cartridge 15, but at this time, the cartridge 15 is locked in the cartridge holder 16 in a state where the insertion is not completed yet. That is, the spring hooks 252A and 252B of the sliders 25A and 25B prevent erroneous insertion of the cartridge 15. Cartridge 1 with the lock arms 20A, 20B and spring hooks 252A, 252B
The reverse insertion preventing mechanism 5 may be used alone or in combination.

Next, the operation of taking out the cartridge 15 mounted in the optical disk video camera 1 will be described. FIG. 13 is a perspective view of the mechanical portion 14 in a state where the cartridge 15 mounted in the optical disc video camera 1 is taken out to a position where it can be taken out. In addition, FIG.
FIG. 14 is a side view of the mechanical section 14 in the state shown in FIG. 13. In the description of FIG. 13, clockwise and counterclockwise are as shown in FIG. 13 and 14, when the eject button (not shown) of the optical disc video camera 1 is pressed, the optical disc video camera 1 releases the locked state of the disc cover 5. When the disc cover 5 is opened, the cartridge holder 16 and the clamp holder 18 are rotationally displaced from the positions shown in FIGS. 9 and 10 to the positions shown in FIGS. 13 and 14. At this time, the cartridge holder 16 and the clamp holder 18 have the same axis of rotation, but since they are connected to the disk cover 5 in different ways, they rotate while relatively opening. By the relative opening operation, the release arm 182 abuts on the hook 23, and the lock release arm 21B to which the hook 23 is integrally attached rotates in the clockwise direction around the shaft 214B. With the rotation,
The contact portion a212B of the lock release arm 21B is rotated clockwise, and the protrusion 21 of the lock release arm 21A is rotated.
2A, the lock release arm 21A rotates counterclockwise, and the lock release arm 21B
The contact portion b211B of the lock arm 20B rotates clockwise and contacts the convex portion 202B of the lock arm 20B.
Rotates counterclockwise. Further, since the lock release arm 21A rotates counterclockwise, the contact portion 211A of the lock release arm 21A contacts the convex portion 201A of the lock arm 20A, and the lock arm 20A rotates clockwise. By the series of operations described above, the lock pin 201
A and 201B are notches 153 of the cartridge 15.
It deviates from A and 153B respectively. Therefore, the holding state of the cartridge 15 by the cartridge holder 16 is released. When the holding state of the cartridge 15 by the cartridge holder 16 is released, the cartridge 15
The cartridge 15 moves in the ejecting direction by the force to return (close) the shutter 151. At this time, the concave portions 154A, 154 of the cartridge 15 are
The sliders 25A and 25B engaged with B also move with the cartridge 15 while maintaining the engaged state. At the tips of the sliders 25A, 25B, cushioning materials 29A, 2
9B is provided, and when the sliders 25A and 25B are moved in accordance with the ejection operation of the cartridge 15, these cushioning materials 29A and 29B are provided on the wall portion 16 of the cartridge holder 16.
It collides with 8A and 168B. Due to this collision, the ejection speed of the cartridge 15 is reduced, and the engagement state between the cartridge 15 and the sliders 25A and 25B is maintained.
3 and the cartridge 15 shown in FIG. 14 is discharged. That is, when the cartridge 15 is ejected, the cartridge 15 is engaged with the cartridge 15 and the moving speed of the movable sliders 25A and 25B is reduced along with the ejection operation of the cartridge 15, so that the cartridge 15 jumps out of the cartridge holder 16 and falls. Prevent that. The coil springs 26A and 26B are the sliders 25A and 25A.
B is urged in the ejection direction of the cartridge 15, but this urges the ejection side of the cartridge 15 so as not to move when the cartridge 15 is not inserted in the cartridge holder 16. However, when the force for returning (closing) the shutter 151 of the cartridge 15 is small due to the sliding load, the influence of other members, etc., and it is insufficient to eject the cartridge 15, this coil is used. The cartridge 15 can be reliably ejected by adjusting the load of the springs 26A and 26B. Further, since the sliders 25A and 25B are provided with the rectangular holes 253A, 253B, 254A and 254B, the movement range of the sliders 25A and 25B can be restricted, and as a result, the ejection of the cartridge 15 ejected state can be performed. You can decide the amount. Through the above operation, the cartridge 15 is in the discharge state shown in FIGS. 13 and 14. The sliders 25A and 25B are integrally mounted, and the leaf springs 251A and 251B having elasticity in a direction substantially perpendicular to the cartridge discharge direction and the spring hooks 252A and 252B at the tips thereof are used to attach the cartridge 15
Is engaged with. Therefore, the cartridge 15 can be easily taken out from the optical disc video camera 1 by pulling. Note that the rotation of the lock release arm 21A and the lock release arm 21B finally releases the contact state between the release arm 182 and the hook 23. Therefore, after the cartridge 15 is taken out, the coil spring 24A, The lock arm 20 is urged by the urging force of 24B.
A, 20B, the lock release arm 21A, and the lock release arm 21B return to the state of FIG.

According to the above-described embodiment of the present invention, all the members necessary for the mechanism for inserting the cartridge into the holder of the cartridge holding device, holding it, and discharging it from the cartridge holder are arranged on one side of the cartridge holder. As a result, a compact and simple structure can be achieved, and assembling into the cartridge holder is also possible from the one surface side described above, automation of the assembling work is facilitated, and assembling in a short time becomes possible. Product cost can be reduced.

[0022]

According to the present invention, the cartridge holding device can be constructed so that the assembling work is easy and can be automated easily.

[Brief description of drawings]

FIG. 1 is an exploded view of essential parts in an embodiment of the present invention.

2 is a perspective view of the embodiment of FIG. 1. FIG.

FIG. 3 is a diagram showing an outer structure of a cartridge.

FIG. 4 is a perspective view of a mechanical portion of the embodiment of FIG.

FIG. 5 is an explanatory diagram of cartridge mounting.

FIG. 6 is an explanatory diagram of a state in which the shutter starts to open when the cartridge is mounted.

FIG. 7 is an explanatory diagram of a mechanism in a cartridge mounting completion state.

FIG. 8 is a diagram showing a cartridge mounting completion state.

FIG. 9 is a perspective view of a mechanical portion showing a cartridge holding state.

FIG. 10 is a diagram showing a side surface of the mechanical portion of FIG.

FIG. 11 is a diagram showing a locked state by the lock arm when the cartridge is erroneously inserted.

FIG. 12 is a diagram showing a locked state by a slider when a cartridge is erroneously inserted.

FIG. 13 is an explanatory diagram of a state of the mechanical unit when the cartridge is taken out in the example.

FIG. 14 is a side view of the mechanical portion of FIG. 13 in a state.

FIG. 15 is a view showing a central cross section of a rotating arm according to an embodiment of the present invention.

FIG. 16 is a view showing a central cross section of a rotating arm according to a conventional technique.

[Explanation of symbols]

1 ... Optical disk video camera, 2 ... Front case,
3 ... R case, 4 ... L case, 5 ... Disk cover, 14 ... Mechanical part, 15 ... Cartridge, 16 ... Cartridge holder, 17 ... Mechanical chassis, 18 ...
Clamp holder, 24, 26 ... Coil spring, 25
... Slider, 162 ... Rotating arm, 163 ... Shutter opener, 167 ... Guide hole, 169 ... Torsion coil spring, 252A, 252B ... Spring hook.

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Takao Naito             1410 Inada Stock Company, Hitachinaka City, Ibaraki Prefecture             Hitachi, Ltd. Digital Media Products Division             Within (72) Inventor Ichiyuki Kodama             1410 Inada Stock Company, Hitachinaka City, Ibaraki Prefecture             Hitachi, Ltd. Digital Media Products Division             Within F-term (reference) 5D046 AA18 BA17 CB09 FA01 FA04                       HA10

Claims (7)

[Claims] 1. A cartridge holding device for holding a cartridge containing a disk at a predetermined position with a shutter open, and a cartridge holder constituting a base of the holding device, and the cartridge in the holding device. Moving in the plane of the cartridge holder accompanying the inserting operation of the cartridge, and the shutter opening member that opens the shutter of the cartridge by the moving operation, and the shutter opening member that is engaged with the shutter opening member around the fulcrum by the moving operation of the opening member. And a spring for urging the rotating member in a direction to reduce the rotational displacement. The rotating member and the spring are provided in the cartridge holder with respect to the cartridge. The cartridge holder is arranged on the second surface side opposite to the first surface side to be inserted, and the cartridge holder is -The opening member is configured to have a hole that can pass from the second surface side to the first surface side, and the rotating member, the spring, and the shutter opening member are the above-mentioned first parts of the cartridge holder. A cartridge holding device characterized in that it can be incorporated into the cartridge holder from the side of 2. 2. A cartridge holding device for holding a cartridge containing a disk in a predetermined position with a shutter open, and a cartridge holder constituting a base of the holding device, and the cartridge in the holding device. A shutter opening member that moves in the plane of the cartridge holder in association with the inserting operation of the cartridge and opens the shutter of the cartridge by the moving operation; and a rod-shaped support member fixed in a substantially upright state on the plane of the cartridge holder. A rotating member that engages with a pillar member in a tubular portion and is rotationally displaced around the pillar member by the movement of the shutter opening member, and a coil member arranged substantially concentrically with the pillar member. A torsion coil spring for engaging the one end of the spring with the spring member in a direction to reduce the rotational displacement. The column member, the rotating member, and the torsion coil spring are
The cartridge holder is disposed on a second surface side opposite to the first surface side into which the cartridge is inserted, and the cartridge holder has the shutter opening member from the second surface side. The support member, the rotating member, the torsion coil spring, and the shutter opening member are configured to have a hole that can pass through to the first surface side, and A cartridge holding device characterized by being configured to be incorporated into a cartridge holder. 3. The cartridge holder has a guide slit continuous to the hole, and the shutter opening member is
The cartridge holding device according to claim 1 or 2, wherein the cartridge holding device is configured to be engaged with the guide slit and move along the slit when the cartridge is inserted. 4. A cartridge holding device for holding a cartridge containing a disk in a predetermined position with a shutter open, and a cartridge holder constituting a base of the holding device, and the cartridge in the holding device. Moving in the plane of the cartridge holder accompanying the inserting operation of the cartridge, and the shutter opening member that opens the shutter of the cartridge by the moving operation, and the shutter opening member that is engaged with the shutter opening member around the fulcrum by the moving operation of the opening member. A rotating member that is rotationally displaced, a spring that biases the rotating member in a direction that reduces the rotational displacement, and a convex portion is supported by an elastic member, and the elastic member is fixed to the cartridge holder side. When the cartridge is inserted into the cartridge holding device in the normal direction, the cartridge has a predetermined structure. In a state that is reached has up to one of the insertion positions, the convex portion by the restoring force of the elastic member is engaged with the first concave portion of the side surface of the cartridge, whereas,
When the cartridge is inserted into the cartridge holding device in the direction opposite to the normal direction, the cartridge is inserted at the second insertion position before the first insertion position.
An engaging member for engaging the second concave portion on the side surface of the cartridge with the restoring force of the elastic member to prevent the convex portion from moving to the second insertion position of the cartridge. The rotating member and the spring are arranged on the second surface side of the cartridge holder opposite to the first surface side into which the cartridge is inserted, and the cartridge holder includes the shutter. The opening member is configured to have a hole that can pass from the second surface side to the first surface side, and the rotating member, the spring, the shutter opening member, and the engaging member are A cartridge holding device characterized in that the cartridge holder can be incorporated into the cartridge holder from the second surface side. 5. The cartridge holding device according to claim 4, wherein the convex portion of the engaging member is made of a plastic material. 6. The cartridge holding device according to claim 1, wherein the rotating member is made of a plastic material. 7. A cartridge holding device according to any one of claims 1 to 6, a signal processing circuit for processing a signal for recording or reproducing on a disk, and a disk for rotationally driving the disk via a motor. A disk device comprising: a drive circuit.