JPH08106772A - Shutter at cartridge insertion port - Google Patents

Abstract

PURPOSE: To obtain a simple and small shutter by giving a specified shape to the cross section of a shutter member for a cartridge insertion port. CONSTITUTION: A driver is provided with a shutter member 06 for a cartridge insertion port which is movable vertically, has an almost circular, almost elliptic or almost triangular cross section and has an inclined surface. When inserted at a cartridge member 02, the member 02 presses the inclined surface of the member 06 and is inserted into a holder member 07 of the driver. Upon the completion of the insertion, the member 06 lowers and the insertion port is closed to prevent the infiltration of dust into the driver. The ejection of the member 02 is done in the similar manner to eliminate a driver for loading or unloading the cartridge. This enables the production of a shutter of the cartridge insertion port highly economical with a simple and small structure.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cartridge in which a disk-shaped recording medium such as a magnetic disk, an optical disk, a magneto-optical disk, or an optical card or various card members is rotatably mounted. The present invention relates to a shutter provided at an insertion port when a member is loaded in an information recording / reproducing apparatus.

[0002]

2. Description of the Related Art As a conventional example, recording such information,
The drive device (information recording / reproducing device) for reproducing is shown in FIG.
-Schematically shown in FIG. In the figure, reference numeral 10
Reference numeral 1 is a cartridge member in which a disk-shaped recording medium (not shown) is incorporated, and 102 is an information pickup device (a magnetic head pickup device or an optical head is used in a magnetic disk drive) for a part of the recording medium in a drive device. In the case of a drive, a cartridge shutter member is exposed to an optical pickup device or the like. Also, 1
Reference numeral 03 is a drive device main body, and a cartridge ejection button 1
04, a cartridge insertion port 105, a shutter body 106 at the cartridge insertion port, and the like. 5 and 6 are partial cross-sectional views seen from the direction A in FIG. 5, and two conventional examples thereof are shown in FIGS. 5 and 6.

In the first conventional example shown in FIG. 5, as shown in FIG.
The state before insertion is shown. Here, the cartridge insertion opening 105 is covered and closed by the cartridge insertion opening shutter main body 106. The shutter body 106 is rotatably supported about a rotation shaft 107. One end of the biasing member 108 is provided on the drive device body 103, and the other end is provided on the cartridge insertion opening shutter 106. Stop 109
By being respectively locked, the cartridge insertion opening 105 is urged in the closing direction. Note that reference numeral 11
Reference numeral 0 is a holder member for moving the cartridge member 101 onto a turntable (not shown), and reference numeral 111 is an introduction portion for guiding the cartridge member 101 into the holder member. Further, (b) of the figure shows a state in which the cartridge member 101 is completely inserted into the drive device main body 103.

In the second conventional example shown in FIG. 6, the cartridge member 101 is replaced with the drive device main body 103 as shown in FIG.
The state before insertion is shown. Here, the cartridge insertion port 105 is in a closed state by being covered with a shutter 112 for the cartridge insertion port. The shutter body 106 is rotatably supported about the rotation shaft 113, and is biased in the direction in which the cartridge insertion opening 105 is closed. Reference numeral 110 is a holder member for moving the cartridge member 101 onto a turntable (not shown), and reference numeral 111 is an introduction portion for guiding the cartridge member 101 into the holder member 110.
Further, (b) of the figure shows a state in which the cartridge member 101 is completely inserted into the drive device main body 103.

[0005]

In the above-mentioned conventional structure, for example, in the first example shown in FIG. 5, the cartridge member 101 is inserted into the cartridge insertion opening 105 against the urging force of the urging member 107. By doing so, the insertion operation of the cartridge member 101 is completed while the shutter 106 for the cartridge insertion opening is held in the pushed-up state.

Therefore, after the cartridge is inserted into the drive device main body 103, the cartridge insertion port 10
No. 5 remains open. As a result, dust enters from the cartridge insertion port 105 and adheres to the magnetic head, the optical pickup, the disk, or the like. Therefore, it adversely affects reading and writing of information.

As a countermeasure against this, after the cartridge member 101 is completely inserted, another means such as closing the cartridge insertion opening 105 with another shutter member (not shown) has been taken. However, this has adverse effects such as an increase in the number of parts, an increase in cost, and an increase in size of the device.

There is also a second example as shown in FIG. 6 which has a mechanism for opening and closing the cartridge insertion port 105 from one cartridge insertion port shutter 112.
For example, when the cartridge insertion port shutter 112 is biased in one direction (the direction in which the cartridge insertion port 105 is closed) by the biasing member as in the example shown in FIG. 5, when the cartridge member 101 is ejected, The shutter 112 must be rotated by another drive mechanism (not shown) to open the cartridge insertion opening 105.
For this reason, this also leads to an increase in the number of parts, a corresponding increase in cost, and an increase in size of the device.

Further, in the mechanism, the cartridge member 101 is moved to the outside of the movable range of the shutter and the drive device main body 10
It had to be pushed deeper than that of No. 3, which had the drawback of making the device larger.

[0010]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, solves the problems described above, and enables a simple and compact structure, and is an inexpensive cartridge insertion port. In order to provide a shutter in.

[0011]

In order to achieve this object, according to the present invention, when a cartridge member accommodating a recording medium is inserted into or ejected from an information recording / reproducing apparatus, the cartridge member has a cartridge insertion opening. A shutter that opens and closes the cartridge insertion port in a state where it can be moved into the device through the shutter main body and is disposed in correspondence with the cartridge insertion port in a direction substantially perpendicular to the moving direction of the cartridge member. The movably supported portion of the cartridge body, which comes into contact with the cartridge member when the cartridge member is inserted into or ejected from the cartridge insertion port, is substantially perpendicular to the insertion or ejection direction of the cartridge member. The cross section viewed from a direction substantially perpendicular to the direction is formed into a shape such as a substantially circular shape, a substantially elliptical shape, or a substantially triangular shape. Shaped curved portion or the beginning of the inclined portion, of the cartridge member, and is configured to begin from the outside than the position or ridge positioned in contact with the shutter body.

[0012]

【Example】

(First Embodiment) The first embodiment of the present invention is shown in FIGS.
Shown by (c) and (a '). In the shutter at the cartridge insertion opening of the present invention shown here, reference numeral 01 is a disk-shaped recording medium. Further, reference numeral 02 is a cartridge member in which a disk-shaped recording medium 01 is incorporated, and 03 is an information pickup device (a magnetic head for a magnetic disk, an optical pickup for an optical head, etc.) for a part of the disk-shaped recording medium in a drive device. It is a shutter member for exposing to.

Reference numeral 04 denotes a drive device main body, which is provided with a cartridge ejection button (not shown), a cartridge insertion opening 05, a shutter main body 06 for the cartridge insertion opening, and the like, as in the conventional example. Reference numeral 07 is a holder member for moving the cartridge member 02 onto a turntable (not shown), and 08 is an introduction portion for guiding the cartridge member 02 into the holder member 07.

The shutter body 06 is a cartridge member 0.
It is movably supported in a direction (indicated by 10) substantially perpendicular to the moving direction of 2 (indicated by 09). Further, a portion 11 of the shutter main body 06 which the cartridge member 02 contacts when the cartridge member 02 is inserted into or ejected from the drive device main body 04 is substantially perpendicular to the insertion / ejection direction of the cartridge member 02 and substantially perpendicular to the moving direction of the shutter main body 06. The cross-section viewed from the different direction (direction A in FIG. 4) is formed into a substantially elliptical shape, and the starting portion 12 of the curved portion or the inclined portion formed into the substantially elliptical shape is formed.
Starts from the position where the cartridge member 02 comes into contact with the shutter main body 06 or the ridge line position from the outside.

As a result, when the cartridge member 02 comes into contact with the shutter main body 06, the shutter main body 06 is pushed upward, the cartridge insertion opening 05 is opened, and the cartridge member can be inserted into the drive device main body 04. Become.

Reference numeral 13 is a shutter receiving portion that supports the shutter body 06 when the shutter body 06 closes the cartridge insertion port 05 and guides the cartridge. Reference numeral 14 denotes a groove portion that substantially positions the tip portion of the shutter body 06 when the shutter body 06 is in a closed state and has a dustproof effect. Further, 15a and 15b are sliding projections provided on the side of the shutter main body 06, which are slide positioning grooves 16 provided on the inner side of the drive device main body 04.
By sliding a and 16b, it is movably supported without any inclination. Further, 17a and 17b are shielding wall portions for preventing dust from entering from the side portion of the shutter body.

In the figure, (a) shows the cartridge member 0.
2 shows a state before the drive device body 04 is inserted into the drive device body 04. The shutter body 06 has a suitable biasing member (not shown) to substantially cancel the weight of the shutter, and can be easily operated by inserting the cartridge member 02. Also, at least, the cartridge shutter insertion opening 05 is biased in the opening direction so that the cartridge shutter insertion opening 05 is not fully opened.

FIG. 3B shows a state in which the cartridge member 02 pushes up the shutter body 06 completely and is inserted into the drive device body 04 halfway.

FIG. 3C shows a state in which the cartridge member 02 is completely inserted into the drive device main body 04.

The above is the operation when the cartridge member 02 is inserted, but when the member 02 is ejected, the above operation is reversed (detailed description is omitted). (Other Embodiments) Another embodiment of the present invention is shown in FIGS.
Is shown in. FIG. 2 shows a modified example of the shutter main body 06 for the above-mentioned cartridge insertion port. In addition, in FIG.
As described in the first embodiment, (a) shows the cartridge member 02 of the shutter body 06 for the cartridge insertion opening.
This is the case where the cross-sectional shape of the portion that comes into contact with is substantially elliptical. Further, (b) is a case where the cross-sectional shape of the portion of the cartridge insertion port shutter 06 that contacts the cartridge member 02 is substantially triangular. Further, (c) is the case where the cross-sectional shape of the portion of the cartridge insertion port shutter 06 that contacts the cartridge member 02 is substantially circular.

In addition, it is conceivable that the cross section of the portion of the shutter main body 06 for the cartridge insertion opening, which abuts on the cartridge member 02, is modified into a substantially spherical shape, a substantially polygonal shape, or the like.

In the example shown in FIG. 3, in the above-mentioned shutter for the cartridge insertion opening, the shutter main body 18 is made of an elastic member, and the guide member 19 elastically deforms the shutter main body 18 not only in the shutter opening / closing direction but also in the apparatus. And is movably supported.

Here, (a) shows a state before the cartridge member 02 is inserted into the drive device main body 04. The shutter main body 18 has a suitable biasing member (not shown) to substantially cancel the weight of the shutter, and can be easily operated by inserting the cartridge member 02.
Moreover, at least to the extent that the cartridge shutter insertion opening 05 is not fully opened even if vibration or shock is applied,
The cartridge insertion port 05 is biased in the opening direction.

FIG. 3B shows a state where the cartridge member 02 pushes up the shutter body 18 completely and is inserted into the drive device body 04 halfway. In this state, the shutter main body 18 is elastically deformed along the guide member 19, and the movement distance of the shutter main body 18 upward in the figure is substantially reduced. (C) of the figure shows a state in which the cartridge member 02 is completely inserted into the drive device main body 04.

The above is the operation when the cartridge member 02 is inserted, but the above operation is reversed when the same member 02 is ejected (details are omitted).

[0026]

As described in detail above, according to the present invention, when a cartridge member containing a recording medium is inserted into or ejected from the information recording / reproducing apparatus, the cartridge member passes through the cartridge insertion port and the apparatus is inserted. With the ability to move in
A shutter for opening and closing the cartridge insertion opening,
A shutter body arranged corresponding to the cartridge insertion port is supported so as to be movable in a direction substantially perpendicular to the moving direction of the cartridge member, and the cartridge member is inserted into and discharged from the device through the cartridge insertion port. The portion that comes into contact with the cartridge member is substantially perpendicular to the inserting / discharging direction of the cartridge member, and the cross section viewed from a direction substantially perpendicular to the moving direction of the cartridge body is substantially circular or substantially elliptical.
It is formed in a shape such as a substantially triangular shape, and the curved portion or the inclined portion formed in the shape starts from the outside of the position of contacting the shutter body or the ridgeline position of the cartridge member. There is.

Therefore, the following effects can be obtained.

1) The shutter body for the cartridge insertion port can be realized with a simple structure. With this configuration, the number of parts is small, for example, a separate drive source for opening and closing the shutter is not required, and thus the cost can be reduced.

2) It is difficult for dust to enter due to the setting of the shielding wall and the like.

3) Where the conventional similar mechanism has a drawback, the cartridge member is not pushed further into the drive device main body, the shutter is not moved outside the movable range, and the device is inevitably increased in size. Is improved and the device does not need to be upsized.

In another embodiment shown in FIG. 3, the shutter main body for the cartridge insertion port is made of an elastic member, and the guide member allows not only the shutter opening / closing direction but also the elastic deformation of the shutter main body unit to move the same. The following effects are also obtained by the shutter body for the cartridge insertion port configured so as to be supported by.

4) While maintaining the above-mentioned effects 1) to 3), the height of the embodiment of this example is as indicated by reference numeral 21 rather than the height of the apparatus in the first embodiment of reference numeral 20 in the figure. It can be lower.

[Brief description of drawings]

FIG. 1 is a side view / partial sectional view of a first embodiment of the present invention.

FIG. 2 is a side view / partial cross-sectional view of another embodiment of the present invention.

FIG. 3 is a side view / partial cross-sectional view of another embodiment of the present invention.

FIG. 4 is an external perspective view of a conventional example.

FIG. 5 is a side view / partial cross-sectional view of a first conventional example.

FIG. 6 is a side view / partial sectional view of a second conventional example.

[Explanation of symbols]

 01 Disc-shaped recording medium 02 Cartridge member 03 Shutter member 04 Drive device main body 05 Cartridge insertion port 06 Cartridge insertion port Shutter member 07 Holder member 08 Introducing portion 09 Cartridge member 02 moving direction 12 Start portion of inclined portion 13 Shutter receiving portion 14 Groove portion 15a, 15b Sliding protrusion 16a, 16b Sliding positioning groove 17a, 17b Covering wall 18 Elastic member cartridge insertion port shutter 19 Guide member 101 Cartridge member 102 Shutter member 103 Drive device main body 104 Cartridge ejection button 105 Cartridge insertion Port 106 Cartridge insertion port shutter member 107 Rotation shaft 108 Biasing member 109 Locking part 110 Holder member 111 Introduction part 112 Cartridge insertion port shutter 113 Rotating shaft

Claims (2)

[Claims] 1. When the cartridge member containing a recording medium is inserted into or ejected from an information recording / reproducing apparatus, the cartridge member can be moved into the apparatus through a cartridge insertion opening. And a shutter main body arranged corresponding to the cartridge insertion opening is supported so as to be movable in a direction substantially perpendicular to the moving direction of the cartridge member. The portion that comes into contact when inserting / discharging into the apparatus is substantially perpendicular to the inserting / discharging direction of the cartridge member, and the cross section viewed from a direction substantially perpendicular to the moving direction of the cartridge body is substantially circular or substantially Oblong,
It is formed in a shape such as a substantially triangular shape, and the curved portion or the inclined portion formed in the shape starts from the outside of the position of contacting the shutter body or the ridgeline position of the cartridge member. A shutter at the cartridge insertion port characterized by being provided. 2. The shutter body is an elastic member,
The shutter at the cartridge insertion opening according to claim 1, wherein the guide member elastically deforms not only in the opening / closing direction of the shutter but also in the apparatus and is movably supported.