JP2563006Y2 - Door mechanism of magazine type disk drive - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a magazine type disk drive into which a magazine containing a disk is inserted, and more particularly to a door mechanism for opening and closing a magazine insertion opening.

[0002]

2. Description of the Related Art FIG. 8 is a structural explanatory view showing a magazine type disk drive, and FIG. 9 is a front view of a housing for explaining a problem of a door mechanism of the conventional magazine type disk drive. The conventional magazine type disk drive has a 6-disk format stored in a magazine.
One of the eight or eight disks is selected, the selected disk is completely pulled out of the magazine, clamped by a reproducing unit, driven to rotate, and reproduced by a pickup. However, in this type of disk device, since the disk is completely pulled out of the magazine, the width of the device in the left-right direction is required to be at least twice the diameter of the disk, and the entire device becomes large.

Therefore, as shown in FIG. 8, the disk D is not completely pulled out of the magazine M, but is pulled out from the magazine M by a distance slightly longer than the radius thereof and clamped to the reproducing unit, and Is rotated by a spindle motor Mt while a part of the media remains in a magazine M and reproduced by a pickup P. In this magazine type disk device, the left and right dimensions Wa in the figure can be made smaller than twice the diameter of the disk, and the device can be downsized.

[0004]

In this type of disk drive, an insertion opening 2 for allowing a magazine M to enter and exit is formed in the front of the housing, and a sliding type opening / closing opening for the insertion opening 2 is provided. Door 1 is provided. However, in the magazine-type disk device shown in FIG. 8, the width Wa of the housing in the left-right direction is smaller than twice the diameter of the disk, whereas the opening width of the insertion slot 2 is equal to or larger than the width of the magazine M. It must be at least as large as the diameter of the disc.

[0005] Therefore, when the insertion opening 2 is to be closed by a single left-right sliding door 1, as shown in FIG. 9, the width Wb of this door is at least 1/2 of the width Wa of the housing. When the door 1 is slid rightward in the drawing to open the insertion slot 2, the door 1 cannot be stored on the right side of the housing.
Therefore, it is conceivable to make the door 1 protrude to the side of the housing when the insertion opening 2 is opened. In this case, when the housing is installed in a vehicle or the like, the door 1 is placed on the side of the housing. It is necessary to secure a space to protrude, and even if the entire apparatus is reduced in size, the actually required installation space increases.

SUMMARY OF THE INVENTION The present invention solves the above-mentioned conventional problems. Even when a small-sized housing has an opening having a long width, the sliding door closes the opening. It is an object of the present invention to provide a door mechanism for a magazine-type disk device that can be stored without protruding from a housing when it is opened.

[0007]

According to the present invention, an insertion slot into which a magazine containing a disk is inserted is formed in a housing in which a disk drive mechanism is embedded, and a position where the insertion opening is opened from a closed position. In a magazine-type disc device provided with a door that slides up to the door, the door is a combination of a plurality of divided bodies that spreads over an area covering the insertion opening when closed and overlaps on the side of the insertion opening when opened. It is assumed that.

In the above means, a side closing portion covering one side portion of the insertion opening at the time of closing and an intermediate portion covering an intermediate portion of the insertion opening and being integrated with the side closing portion with a step. A first divided body is formed with the closing part, and a second divided body is formed by the side closing part that covers the other side of the insertion port when closed and overlaps the intermediate closing part when opened. is there.

[0009] In the above, when the insertion opening is closed at the overlapping portion between the intermediate closing portion of the first split body and the side closing portion of the second split body, and when the opening is opened, the overlapping portion is within the overlapping portion. It is possible to form a hidden display part.

[0010]

According to the first means, the door is divided into a plurality of parts, and when the insertion opening is closed, each divided body of the door spreads over an area capable of covering the insertion opening. When the door is slid in the direction in which the insertion opening is opened, the divided bodies overlap on the side of the insertion opening. Thus, even when a long insertion opening is opened in a small housing, the insertion opening can be reliably closed and opened, and the door projects out of the housing when opened. Will be paid without.

[0011] In the second means, when the insertion port is closed, the door has side closure portions located on the left and right sides of the insertion port, and has a step with the both side closure portions at an intermediate portion of the insertion port. As a result, the intermediate closing portion is located, and it can be seen that the left and right balance is obtained in appearance. When the insertion opening is opened, the first divided body including one side closing portion and the intermediate closing portion and the second divided body formed by the other side closing portion are overlapped with each other on the side of the insertion opening. Located at That is, in the closed state, the door can be seen as if it were divided into three parts and as a well-balanced combination of left and right, or it looks like a single door having a well-balanced step between left and right, and When the is opened, the two divided bodies overlap and can be accommodated without protruding to the side of the housing.

In the third means, since the display portion is formed at the overlapping portion between the intermediate closing portion of the first divided body and the side closing portion of the second divided body, the insertion opening is closed. Sometimes this display section appears on the door surface and hides when the insertion opening is opened. Various displays can be performed by this appearing or hiding display unit.For example, by providing an arrow indicating the door opening direction as a display unit only when the insertion port is closed by the door, the opening direction can be changed. It is easy to understand, and the design is also good.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. 1 to 4 show a first embodiment of the present invention. 1A and 1B are front views showing a door mechanism of a magazine type disk device, wherein FIG. 1A shows a state where an insertion slot is closed by a door, and FIG. 1B shows a state where the slot is opened. FIGS. 2A and 2B are schematic perspective views for explaining the operation of the door mechanism of the magazine type disk drive, wherein FIG. 2A shows a closed state and FIG. 2B shows an open state. FIG. 3A is a front view showing a first divided body P1 of the door,
FIG. 3B is a view taken in the direction of arrow B in FIG. 3A, and FIG.
FIG. 4B is a front view showing the divided body P2 of FIG. Reference numeral 3 in the figure is the front surface (decorative surface) of the housing of the magazine type disk device. The front surface 3 is formed with an insertion slot 2 into which the magazine M is inserted. The insertion opening 2 is opened and closed by a door 11 provided inside the front surface 3 of the housing. As shown in FIG. 8, the internal structure of this magazine type disk drive
Is pulled out by a dimension slightly longer than the radius, and the disk is driven to rotate while a part of the disk is in the magazine M. Therefore, the width of the opening 2 in the left-right direction of the insertion opening 2 is equal to or more than half the width Wa of the front surface 3 of the housing.
Therefore, the developed width dimension Wb of the door 11 when the insertion opening 2 is closed is also longer than half the width dimension Wa of the front surface 3.

The door 11 is slidably mounted on the back side of the front surface 3 of the housing, and has a structure including a left closing portion 13, an intermediate closing portion 12, and a right closing portion 14. I have. As shown in FIG. 3, the left closing portion 13 and the intermediate closing portion 12 are integrally formed to form a divided body P1, and as shown in FIG. 4, the right closing portion 14 is formed separately from the divided body P1.
It is 2. As shown in FIGS. 1A and 2A, in a state where the insertion port 2 is closed by the door 11,
The left and right closing portions 13 and 14 are located at the left and right portions of the insertion slot 2, and the middle closing portion 12
Is located. Moreover, the intermediate closing portion 12 has an appearance in which the intermediate closing portion 12 is overlapped with a step on the front side of the left and right closing portions 13 and 14. That is, in the closed state, the intermediate closing portion 12 appears to be located at the center of the insertion slot 2, and the left and right closing portions 13 and 14 are located one step deeper on both sides thereof. In addition, the middle closing part 12 is the left closing part 1
3 and the front side of the right side closing part 14, the respective closing parts 12, 13, 14 appear to be divided into three parts, or the joints of the respective closing parts become equal left and right steps. It looks like a single door.

In the divided body P1 shown in FIGS. 3 (A) and 3 (B), the intermediate closing portion 12 is integrally formed of resin in a state of being overlapped on the front side at the end of the left closing portion 13, and A step region 12 having a length Wc on the back side of the intermediate closing portion 12
B is formed. A lock groove 15 is formed on the front surface of the X2 side end of the left closing portion 13. When the insertion opening 2 is closed by the door 11, a locking member (not shown) such as a leaf spring provided inside the housing fits into the lock groove 15, and the door 11 is lightly locked in the closed state. You. An operation protrusion 16 is provided on the right side of the lock groove 15 so as to protrude toward the front surface. By gripping the operation protrusion 16, a sliding force in the X1-X2 direction is provided. Reference numeral 17 in the figure is an arrow display indicating the opening direction. The width of the intermediate closing portion 12 in the Y direction is the same as that of the left closing portion 13.
It is composed of a narrower portion 12A smaller than the width in the direction and a wide portion 18 having a width dimension substantially the same as the width of the left closing portion 13 in the Y direction. On the back side of the wide portion 18, a pair of protrusions 19 located at the upper and lower edges in the figure are provided. A lock groove 22 is formed at the end of the wide portion 18 on the X1 side. When the insertion opening 2 is completely opened, a locking member such as a leaf spring inside the housing fits into the lock groove 22, and
Lightly locked when open.

In the divided body P2 shown in FIGS. 4A and 4B, the right closing portion 14 is formed of resin. The right-side closing portion 14 includes the narrow portion 12 of the left-side closing portion 13.
A narrow portion 14A having substantially the same width dimension as A and the narrow portion 1
A pair of protrusions 20 are formed at the upper and lower ends of the end of the 4A in the X2 direction and project toward the front surface. As shown in FIG. 2A, in a state where the door 11 is combined, the right-side closing portion 14 is located on the back side of the intermediate closing portion 12, and the narrow portion of the intermediate closing portion 12 is located between the pair of protrusions 20. The part 12A is sandwiched.
The end in the X1 direction of the right closing portion 14 is a wide portion 21,
This portion has substantially the same width as the width of the wide portion 18 of the left closing portion 13 in the Y direction. A left closing portion 13 and an intermediate closing portion 12 integrally formed as a divided body P1;
And the right-side closing part 14 which is a separate body P2
Are combined as shown in FIGS. 2A and 2B,
It is mounted inside the front surface 3 of the housing. In this case, for example,
The illustrated upper and lower edges of the left-side closing portion 13 and the illustrated upper and lower edges of the wide portion 21 of the right-side closing portion 14 are slidably inserted into the rail grooves inside the front surface 3, whereby the divided body P1 shown in FIG. And the divided body P2 shown in FIG.
It can slide in two directions.

As shown in FIG. 2A, the combination of the respective divided bodies shown in FIGS. 3 and 4 is such that the right closing portion 14 is located inside the step region 12B shown in FIGS. 3A and 3B. The projections 20 and 20 of the right-side closing portion 14 are overlapped with each other,
In this state, the second narrow piece 12A is sandwiched. That is, the surface appearing in front of the paper of FIGS. 3A and 4A is seen as the door surface from the front of the insertion slot 2. A limit switch 23 for detecting the opening of the door 11 is provided at the right end in the drawing inside the front surface 3 of the housing. When the end of the intermediate closing portion 12 on the X1 side is detected by the limit switch 23, it is detected that the insertion port 2 is completely opened.

Next, the opening and closing operation of the door mechanism will be described. In the closed state shown in FIGS. 1A and 2A, the divided body P1 and the divided body P2 constituting the door 11 are developed in an area covering the insertion opening 2. At the time of closing, an intermediate closing portion 12 is provided at a substantially central portion of the insertion opening 2, and a left closing portion 1 is provided at a left and right one-step deep side.
3 and right side closure 14 appear. The boundary step between the left closing part 13 and the middle closing part 12 and the boundary step between the middle closing part 12 and the right closing part 14 are arranged at equal positions on the left and right inside the insertion slot 2. Therefore, the door 11 in the closed state has an appearance in which the left and right sides are balanced in the width direction of the insertion slot 2. In addition, the middle closing part 12, the left closing part 13, and the right closing part 14 may be seen as separate bodies, respectively, or one door formed with a step at both right and left edges of the middle closing part 12 may be used. Looks like.

When opening the insertion slot 2, the operation projection 1
6 and pull in the X1 direction, the light lock between the lock groove 15 and the locking member is released, and the projection 19 of the intermediate closing portion 12 is released.
Is an end surface 14B of the narrow piece portion 14A of the right closing portion 14 (FIG. 4).
(See (A) and (B))) and slide on the right side closing portion 14
Slides on the upper and lower edges of the narrow piece 12A of the intermediate closing part 12, and the left closing part 13 and the intermediate closing part 12 integrated as the divided body P1 move in the X1 direction. When the projection 19 hits the illustrated left end of the wide portion 21 of the right closing portion 14, the right closing portion 14 of the divided body P <b> 2 is overlaid on the step region 12 </ b> B on the back surface of the intermediate closing portion 12. When the operation protrusion 16 is further pulled in the X1 direction, the protrusion 19
Pressing 1 moves the divided body P1 and the divided body P2 in the X1 direction while overlapping each other. When fully open,
The lock groove 22 of the intermediate closing portion 12 is fitted to a locking member in the device, and the door 11 is lightly locked in an open state. At this time, the limit switch 23 detects the illustrated right end portion of the intermediate closing portion 12 and detects that the insertion port 2 is completely opened. By this detection, for example, the discharging mechanism of the magazine M loaded in the apparatus is activated. It is set to be operable.

Next, when the insertion port 2 is closed,
The finger is put on the operation protrusion 16 protruding forward at the right end in the drawing, and is pulled in the X2 direction. By this operation, the light lock between the lock groove 22 and the locking member is released, and first, the divided body P1 slides in the X2 direction. Wide part 1 of the intermediate closing part 12 of the divided body P1
8, the right side closing part 14 is pulled in the X2 direction, and then the divided body P1 and the divided body P2 are unfolded, and the left side edge of the figure 8 hits the projection 20 of the right closing part 14 which is the divided body P2. 2A, and the insertion opening 2 is closed as shown in FIGS. 1A and 2A. When the insertion slot 2 is closed, the right side closing portion 14 is moved to the position shown in FIG.
It is preferable that a stopper is provided in the apparatus to abut on the X2 side edge of the wide portion 21 of the right closing portion 14 so as not to further move in the X2 direction from the position shown in FIG. At the time of opening and closing operations, the divided body P1 composed of the left side closed portion 13 and the intermediate closed portion 12 is first moved in the X1 direction or X2 direction.
It is preferable that the sliding resistance of the right-side closing portion 14 with respect to the housing is set to be slightly large so that the right-side closing portion 14 can follow and slide afterward.

FIGS. 5 to 7 show a second embodiment of the present invention. FIG. 5 is a perspective view showing a state where the insertion port is closed, FIG. 6 is a perspective view showing a state where the insertion port is opened,
FIG. 7 is an exploded perspective view showing a combination of divided bodies Pa and Pb constituting a door. 5 and 6, reference numeral 30 denotes a nose portion mounted as a decorative plate on the front surface of the housing of the magazine type disk device. As shown in FIG. 6, the nose portion 30 has an insertion opening 3 into which the magazine M is inserted.
1 is formed. Door 40 for closing this insertion opening 31
Is divided into divided bodies Pa and Pb.
The width of the opening 31 in the left-right direction of the insertion opening 31 is not less than half the width Wa of the nose portion 30, and therefore, as shown in FIG. Wb is also half or more of the width Wa of the nose portion 30.

As shown in FIG. 7, one of the divided bodies Pa constituting the door 40 includes a right-side closing portion 41 that covers the right side portion of the insertion port 31 in the closed state in the closed state, an intermediate closing portion 42 that covers substantially the center portion, and Are integrally formed of resin. The intermediate closing portion 42 has a substantially flat plate shape. The right-side closing portion 41 has a U-shaped cross section, and the right-side closing portion 41 projects one step closer to the intermediate closing portion 42. The illustrated left edges 41A and 41B of the right closing portion 41 have a step with respect to the intermediate closing portion 42.
1B is substantially V-shaped. The other divided body Pb constituting the door 40 is a left-side closed portion 43 that covers the left portion of the insertion port 31 in the closed state in the closed state. This left closure 4
3 is also made of resin and has a U-shaped cross section. A sliding groove 4 is provided inside the upper and lower portions of the left closing portion 43 in the drawing.
3C and 43C are formed. These sliding grooves 43C, 4
3C is the upper and lower edges 4 of the intermediate closing portion 42 of the divided body Pa.
2A and 42A so as to be slidably fitted to each other.
a and Pb are combined so as to be relatively slidable between a closed state opened as shown in FIG. 5 and an open state where the left closing part 43 and the middle closing part 42 overlap as shown in FIG.

The right edges 43A and 43B of the left closure 43 are substantially V-shaped. This one right edge 43A
Are inclined at the same angle in the same direction as the left edge portion 41A of the right closing portion 41. Therefore, when the left closing portion 43 slides in the X1 direction with respect to the middle closing portion 42 and overlaps with the middle closing portion 42, the right edge portion 43A and the left edge portion 41A come into contact with each other. In addition, a ridge 44 is integrally formed on the surface of the X2 side end of the intermediate closing portion 42, and a long groove 45 is formed on the back surface of the left closing portion 43. In a state where the divided bodies Pa and Pb are combined, the ridge 44 is slidably inserted into the long groove 45. When the left closing portion 43 is slid in the X2 direction with respect to the intermediate closing portion 42, the end portion 44A of the ridge 44 and the end portion 45A of the long groove 45 hit, and this functions as a stopper. It will not slide further in the X2 direction with respect to the intermediate closing portion 42.

As shown in FIG. 7, ridges 41C, 41C are integrally formed on the upper and lower inner sides on the back side of the right closing portion 41,
Also, on the upper and lower inner sides on the back side of the left closing portion 43, ridges 43D, 43 located on the back side of the sliding grooves 43C, 43C.
D is formed integrally. As shown in FIGS. 5 and 6,
Sliding grooves 32, 32 are formed in the upper and lower edges of the nose portion 30. The right closing part 41 is installed so as to overlap the front surface of the nose part 30, and the ridges 41C, 41C are slidably fitted in the sliding grooves 32, 32. Left closure 43
The protrusions 43D, 43D are slidably fitted in the sliding grooves 32, 32, respectively. Thus, the divided body Pa and the divided body Pb can slide in the X1-X2 direction independently of each other. The nose portion 30 is provided with a stopper so that the divided body Pa does not slide further in the X2 direction than the closed state shown in FIG.

On the surface of the door 40 composed of the divided body Pa and the divided body Pb, first, an operation projection 43E is integrally formed at the end on the X2 side of the left closing portion 43 in a protruding manner. On the front surface of the intermediate closing portion 42, a display portion 46A is formed at the lower right of the figure, which is composed of a character "CLOSE" and an arrow pointing in the X2 direction, and is formed at the upper left portion by a character "OPEN" and an arrow pointing in the X1 direction. A display 46B is formed. The one display portion 46B is formed at an overlapping portion with the left closing portion 43. As shown in FIG. 5, when the insertion port 31 is closed by the door 40 and the two divided bodies Pa and Pb are in the expanded state, the display portion 46B of “OPEN” appears on the surface.
However, when the insertion slot 31 is opened as shown in FIG. 6, the display portion 46B is hidden behind the left side closing portion 43 and becomes invisible. As shown in FIG. 6, when the left closing portion 43 overlaps the middle closing portion 42, the middle closing portion is closed in a triangular area between the left edge portion 41B of the right closing portion 41 and the right edge portion 43A of the left closing portion 43. The surface of the portion 42 is exposed, and a display portion 46A of “CLOSE” appears in this portion.
A is not hidden.

Next, the operation of the door mechanism of the second embodiment will be described. As shown in FIG. 5, in the closed state, the right closing part 41, the middle closing part 42, and the left closing part 43 are deployed, and the insertion port 31 is closed. At this time, the right side closing part 41 and the left side closing part 43 are located with a step on the near side at the left and right portions of the intermediate closing part 42, and the door is 3
It has the appearance of being divided, or looks like a single door in which the left and right closing parts 41, 43 and the intermediate closing part 42 are integrally formed with a step. In this closed state, a display section 46B composed of the letters "OPEN" and an arrow pointing to the opening direction appears at the upper left of the intermediate closing section 42. Also at this time, the display section 46A of "CLOSE" is visible at the lower right of the intermediate closing section 42.

When opening the insertion slot 31, a finger is put on the operation projection 43E provided on the left closing portion 43, and the operation projection 43E is pulled in the X1 direction. Here, the sliding resistance of the divided body Pb serving as the left closing part 43 is lower than the sliding resistance when the divided body Pa including the right closing part 41 and the intermediate closing part 42 slides on the nose part 30. First, only the divided body Pb, that is, only the left-side closing portion 43 moves in the X1 direction and overlaps with the intermediate closing portion 42. When the right edge 43A of the left closing portion 43 and the left edge 41A of the right closing portion 41 come into contact with each other, the divided body Pa and the divided body Pb thereafter slide together in the X1 direction, as shown in FIG. As a result, the insertion opening 31 is opened, and the left closing portion 43 and the intermediate closing portion 42 overlap with the right side of the insertion opening 31.

In the open state shown in FIG. 6, the right edge 43A of the left closing portion 43 and the left edge 41A of the right closing portion 41 are also provided.
And the top and bottom are a right edge 43B and a left edge 41A.
, And a triangular region surrounded by the right edge 43A and the left edge 41B are formed in a vertically symmetrical shape, and a part of the intermediate closing portion 42 appears from each of the triangular regions. And present a well-balanced appearance. Also, in the closed state of FIG. 6, a display section 46A consisting of the letters "CLOSE" and an arrow pointing to the opening direction appears in the lower triangular area,
The display section 46B of “OPEN” is hidden behind the left closing section 43. When closing the door 40, a finger is hooked on the operation projection 43E provided on the left-side closing portion 43 and pulled in the X2 direction.
At this time, the divided body Pa having the large sliding resistance does not move, and the left closing part 43 of the divided body Pb having the small sliding resistance is replaced with the intermediate closing part 42.
Slides against Then, when the end 44A of the ridge 44 provided on the intermediate closing portion 42 and the end 45A of the long groove 45 of the left closing portion 43 come into contact with each other, the divided body Pa is thereafter pulled by the divided body Pb and slides in the X2 direction. The door 4 moves as shown in FIG.
0 closes the insertion opening 31.

In the second embodiment shown in FIGS. 5 to 7, the divided bodies Pa and Pb are attached so as to cover the front surface and the upper and lower edges of the nose portion 30 from the outside. Since the ridges 41C and 43D formed on Pb are fitted in the sliding grooves 32 of the nose portion 30 which are oriented in the vertical direction,
For example, even when a luggage is placed on a housing that is continuous behind the nose portion 30 and the upper portion of the housing and the nose portion 30 is pressed downward and slightly curved, the divided body P
The sliding load between a and Pb does not increase.

[0030]

As described above, according to the first aspect of the present invention, in the closed state, each divided body of the door spreads over an area capable of covering the insertion opening, and in the open state, the divided body is formed of the insertion opening. Overlap laterally. Therefore, even when a long insertion opening is opened in a small housing, the insertion opening can be reliably closed and opened, and the door projects outside the housing when opened. Can be paid without.

In the invention according to the second aspect, in the closed state, the door can be seen as if it is divided into three parts and as a combination with a well-balanced left and right, or one sheet having a well-balanced left and right step. It looks like a door, and when opening the insertion slot, the two divided bodies overlap and can be accommodated without protruding to the side of the housing.

According to the third aspect of the present invention, since the display portion is formed at the overlapping portion between the intermediate closing portion of the first divided body and the side closing portion of the second divided body, the insertion opening is closed. The display unit appears on the door surface when the door is open, and is hidden when the insertion slot is opened. Therefore, for example, by providing an arrow or the like indicating the opening direction of the door as a display unit only when the insertion opening is closed by the door, the opening direction can be easily understood and the design is good.

[Brief description of the drawings]

FIG. 1 is a front view showing a first embodiment of a door mechanism of a magazine type disk drive according to the present invention, wherein (A) shows a state where an insertion opening is closed by a door, and (B) shows an opened state. Indicates the status.

FIGS. 2A and 2B are perspective views for explaining an opening and closing operation of the door mechanism of the first embodiment, wherein FIG. 2A shows a closed state and FIG. 2B shows an open state.

FIG. 3A is a front view showing a first divided body, and FIG. 3B is a view taken in the direction of arrow B in FIG.

FIG. 4A is a front view showing a second divided body, and FIG. 4B is a view taken in the direction of arrow B in FIG.

FIG. 5 is a perspective view showing a closed state of a door mechanism according to a second embodiment.

FIG. 6 is a perspective view illustrating an open state of a door mechanism according to a second embodiment.

FIG. 7 is an exploded perspective view showing a combined state of first and second divided bodies.

FIG. 8 is an explanatory diagram showing the internal structure of a magazine type disk device.

FIG. 9 is a front view of a housing for explaining a problem of a door mechanism of a conventional magazine disk device.

[Explanation of symbols]

 2 Insertion port 11 Door P1 First divided body P2 Second divided body 12 Intermediate closing part 13 Left closing part 14 Right closing part 15 Groove 16 Operation protrusion 17 Arrow display part 18 Wide part 19 Projection 20 Projection 21 Wide part 22 Groove 30 Nose part 31 Insertion opening 40 Door Pa First divided body Pb Second divided body 41 Right closing part 42 Middle closing part 43 Left closing part 46A, 46B Display part M Magazine D Disk

 ────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Keiichi Morimoto 1-8-1, Nishigotanda, Shinagawa-ku, Tokyo Inside Alpine Corporation (56) Reference Reference

Claims (3)

(57) [Scope of request for utility model registration] 1. A housing having a built-in disk drive mechanism,
In a magazine-type disc apparatus, an insertion slot into which a magazine containing a disc is inserted is formed, and a door is provided that slides from a position where the insertion slot is closed to a position where the insertion slot is opened. A door mechanism for a magazine-type disk device, wherein the door mechanism is a combination of a plurality of divided bodies that spread over an area that covers the side of the insertion opening when opened. 2. A side closure which covers one side of the insertion slot when closed, and an intermediate closure which covers an intermediate portion of the insertion slot and is integrated with the side closure with a step. The first divided body is formed by the first closed body, and the second divided body is formed by a side closing part which covers the other side of the insertion opening when closed and overlaps with the intermediate closing part when opened. Door mechanism for magazine type disk drive. 3. An indication that appears when the insertion opening is closed and is hidden in the overlapping portion when the insertion opening is opened, at an overlapping portion between the intermediate closing portion of the first split body and the side closing portion of the second split body. 3. The door mechanism according to claim 2, wherein a portion is formed.