JP2003223756A - Information recording and reproducing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent occurring of a situation where a cartridge cannot be taken out because flaw-preventing protrusions formed on the front surface of a door and protrusions for reducing frictional resistance formed on the rear surface of the door contact with the shutter of the cartridge when the cartridge is inserted erroneously. <P>SOLUTION: The flaw-preventing protrusions 11 and 12 whose heights or heights and widths are different from each other are formed on the front surface of the door 1 provided at an insertion port 10 for inserting the cartridge 4 so that only the higher or higher and wider protrusion 11 may contact with the cartridge when the cartridge 4 is inserted. Furthermore, protrusions whose heights or heights and widths are different from each other are formed also on the rear surface of the door 1 for inserting the cartridge 4 so that only the higher or higher and wider protrusion may contact with the cartridge 4 when the cartridge 4 is ejected. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an information recording / reproducing apparatus for recording / reproducing an information signal on a writable recording medium housed in a cartridge, which is provided with a door for preventing dust and the like from being mixed into an insertion opening of the cartridge. The present invention relates to an information recording / reproducing device.

Conventionally, in an information recording / reproducing apparatus in which a cartridge such as an MD (mini disk) is loaded and an information signal is recorded / reproduced, in order to prevent dust and the like from being mixed into an insertion opening of the cartridge, a flat plate shape is formed. The door was attached.
The door provided at this insertion port is configured such that the side surface of the cartridge is pressed against the surface of the door when the cartridge is inserted, and the door is pushed up and opened in accordance with the insertion operation of the cartridge. Since this operation of opening the door is repeated every time the cartridge is loaded, there is a problem that the surface of the door is scratched and unsightly. In addition to the scratches on the door, there is a problem that the print is peeled off when the door surface is printed.

As a method for preventing scratches on the door and peeling of the print, the door 1 is schematically shown in FIGS. 7 and 8.
The protrusion 2 and the protrusion 3 were provided at two positions slightly leftward on the surface of the above. In this way, the protrusion 2,
By providing 3 on the surface of the door 1, the side surface of the cartridge 4 does not directly contact the door 1 when the door 1 is pushed open, and the scratches only attach to the protrusions 2 and 3, and
It was possible to reduce the unsightly appearance due to scratches and peeling of the print on the entire surface of. Reference numeral 9 indicates the body of the MD player device.

Further, the projections 2 and 3 for preventing scratches are provided at positions slightly leftward of the door 1. This means that, as shown in FIG. 7, the projections 2 and 3 do not hit the shutter 5 of the cartridge 4 as shown in FIG. 8 on the assumption that the cartridge 4 is inserted in the correct direction as specified. As you can see, it was located slightly to the left. However, if the cartridge 4 is erroneously inserted in the opposite direction as schematically shown in FIG. 9, for example, the projection 2 may hit the shutter 5 of the cartridge 4 as schematically shown in FIG. there were.

Therefore, conventionally, even when the projection 2 is at the position where it hits the shutter 5, the door 1 and the door 1 are provided in order to prevent the trouble that the shutter 5 is caught by the projection 2 and the cartridge 4 cannot be taken out. It was necessary to set the positional relationship among the projection 2, the shutter 5, and the erroneous insertion stopper 6 so that the following conditions were satisfied.

First, as schematically shown in FIG. 11, the distance from one end of the shutter 5 to the erroneous insertion stopper 6 is A, and the erroneous insertion from the tip of the protrusion 2 when the door 1 is closed. The distance to the stopper 6 is B, and the door 1
C is the distance from the tip of the protrusion 2 when the door is closed to the lower end of the protrusion 2 when the door 1 is completely open.
Then, it was necessary to set the respective positions so that the condition “B ≦ A + C” was satisfied. In addition,
Reference numeral 8 indicates a recording / reproducing mechanism.

By setting the positional relationship among the door 1, the projection 2, the shutter 5 and the erroneous insertion stopper 6 so as to satisfy the above conditions, FIG. As shown in the figure, the protrusion 2 can be set so that it is always in the range of contact with the upper surface of the shutter 5, and as shown schematically in FIG. I was trying not to be.
As a result, when the cartridge 4 is taken out, the trouble schematically shown in FIG. 13, that is, the trouble that the protrusion 2 is hit by the end portion of the shutter 5 and caught and the cartridge 4 cannot be taken out is prevented. Was.

Further, in the conventional information recording / reproducing apparatus, as schematically shown in FIG. 14, the back surface of the door 1 provided at the insertion opening of the cartridge 4 has the same shape as the projections 2 and 3 provided on the front surface. There are those provided with a protrusion 7 for reducing the frictional resistance.

The projections 7 for reducing the frictional resistance are formed on the upper surface of the cartridge 4 when the cartridge 4 is taken out.
The back surface of the door 1 (particularly, the lower end portion of the back surface) is prevented from coming into direct contact with the cartridge 1 so as not to affect the ejection operation of the cartridge 4. That is, by providing the projection 7 for reducing the frictional resistance, when the cartridge 4 is taken out, a gap is formed between the back surface of the door 1 and the upper surface of the cartridge 4, as schematically shown in FIG. be able to. Therefore, only the protrusion 7 having a small contact area is in direct sliding contact with the upper surface of the cartridge 4,
The frictional resistance can be reduced and the discharging operation of the cartridge 4 can be smoothly performed.

[0010]

In the above-mentioned conventional information recording / reproducing apparatus, if the respective positional relations are set and arranged based on the conditions shown in FIG. 11, the erroneous insertion stopper 6 and the door 1 are placed. There is a problem in that there is a limitation in the positional relationship with the above, which affects the design of the front panel of the information recording / reproducing apparatus main body.

To solve this problem, for example, the positional relationship shown in FIG. 12 is used instead of the positional relationship shown in FIG. 11, that is, the condition at this time is set to "B> A +".
If "C" is set, there is no limitation on the positional relationship between the erroneous insertion stopper 6 and the door 1. However, as shown in FIG. 13, when the cartridge 4 is taken out, there is a problem in that the shutter 2 cannot be taken out due to the projection 2 hitting the shutter 5 and being caught.

Further, in the information recording / reproducing apparatus in which the cartridge such as the conventional MD is loaded and the information signal is recorded / reproduced, the recording / reproducing mechanism 8 shown in FIG. is there. Therefore, when the recording / reproducing mechanism 8 is designed, the dimension D is limited, and the positional relationship among the door 1, the protrusion 2, the shutter 5, and the erroneous insertion stopper 6 is naturally limited, and the position can be freely set. There was a problem that I could not do it.

According to the present invention, when the cartridge is erroneously inserted, the protrusion for preventing scratches provided on the surface of the door does not hit the shutter of the cartridge, and the cartridge can be reliably taken out and erroneously inserted. The purpose is to allow the stopper and the door to be placed without any restrictions on the positional relationship.In addition, the projections for reducing the frictional resistance provided on the back surface of the door do not hit the shutter of the cartridge, and It is an object of the present invention to provide an information recording / reproducing device capable of taking out a cartridge.

[0014]

An information recording / reproducing apparatus of the present invention has a cartridge accommodating a writable recording medium and an insertion port into which the cartridge is loaded, and records an information signal on the recording medium. A main body that reproduces an information signal from a recording medium, a door that is installed so as to open and close the insertion opening of the main body when the cartridge is inserted and ejected, and a plurality of protrusions for preventing scratches that are provided on the surface of the door. In the information recording / reproducing apparatus provided, only one of the protrusions is configured to contact the cartridge.

Further, a cartridge containing a writable recording medium, an insertion port for loading the cartridge, a main body for recording an information signal on the recording medium and reproducing the information signal from the recording medium, and a cartridge. In an information recording / reproducing apparatus including a door mounted so as to open and close the insertion opening of the main body in accordance with an insertion / ejection operation, and a plurality of projections for reducing frictional resistance provided on the back surface of the door, Of these, only one protrusion is configured to come into contact with the cartridge.

Further, the above-mentioned protrusions are formed so as to have different heights or different heights and widths, and only the highest protrusion or the highest and widest protrusion is brought into contact with the cartridge. It is effective to do.

Further, it is preferable that the tip of the projection formed by changing the height and the width is formed in a concave shape.

[0018]

BEST MODE FOR CARRYING OUT THE INVENTION An information recording / reproducing apparatus of the present invention will be described below based on an embodiment with reference to the drawings.

FIG. 1 shows an example in which the present invention is applied to an MD player device for recording / reproducing information signals using an MD (mini disc). As schematically shown in FIG. 1, a main body 9 of the MD player device is provided with an insertion opening 10 into which a cartridge 4 accommodating an MD is loaded. The insertion port 10 is provided with a door 1 for preventing dust and the like from entering the main body 9.

The door 1 is formed of a relatively flexible resin member in the shape of a flat plate, and is attached to the main body 9 so that the door 1 can rotate about its left and right upper ends. Further, the opening / closing operation of the door 1 is configured to be pushed and rotated by the side surface of the cartridge 4 in accordance with the insertion operation of the cartridge 4 and pushed up into the main body 9 to open the insertion port 10.

The MD player device shown in FIG. 1 is provided with two projections 11 and 12 on the surface of the door 1 constructed as described above, slightly to the left, with a space therebetween. As schematically shown in FIG. 2, the right protrusion 11 is formed to have a height F and a width E. The other left protrusion 12 is formed to have a height G and a width H. This protrusion 11 and protrusion 1
The difference between the two dimensions is that the height is "F>G" and the width is "E>H".
As shown in FIG. 2, the projection 11 on the right side is formed larger. Further, the right projection 11 is provided near the center of the surface of the door 1 and is arranged so as not to hit the shutter 5 of the cartridge 4 even if the cartridge 4 is inserted by mistake.

In this way, by forming the protrusion 11 on the right side to have a height F and a width E, and to form the protrusion 12 on the left side to be higher in height and wider in width, as schematically shown in FIG. In addition, in the normal insertion operation state in which the cartridge 4 is inserted in the correct direction, only the protrusion 11 on the right side comes into contact with the upper surface of the cartridge 4. On the other hand, since the left protrusion 12 is formed smaller than the right protrusion 11, it is located apart from the cartridge 4 so that it does not come into contact with the cartridge 4, and it has no effect on the insertion and ejection operations of the cartridge 4. Never.

Further, as shown schematically in FIG. 3, even when the cartridge 4 is erroneously inserted, the height F of the right protrusion 11 is higher than the height G of the left protrusion 12, so that the right protrusion is Only 11 contacts the upper surface of the cartridge 4. The protrusion 12 on the left side is located above the shutter 5 of the cartridge 4 and is not in contact with the shutter 5. Therefore, when the cartridge 4 is taken out, it is possible to prevent a trouble in which the left protrusion 12 hits the shutter 5 and is caught.

Further, as schematically shown in FIG. 4, the relationship between the width E of the right side protrusion 11 and the width H of the left side protrusion 12 is "E≥
H ”, the insertion opening 10 of the cartridge 4 and the right protrusion 11
A gap J can be provided between the projection 12 on the left side and the shutter 5 in combination with the distance K of The gap J can prevent the left protrusion 12 from hitting the shutter 5 even when the incorrectly inserted cartridge 4 is obliquely inserted or taken out. It is possible to form the opening of the insertion opening 10 wide.

Next, the role of the left protrusion 12 provided on the door 1 will be described. Since the material forming the door 1 is made of a material softer than the material forming the cartridge 4, for example, when the cartridge 4 is inserted while the cartridge 4 is biased clockwise, the door 1 Is bent and deformed, and the left side surface of the cartridge 4 comes into contact with the surface of the door 1, and the surface of the door 1 may be scratched.
Even if such a situation occurs, the protrusion 12 on the left side of the door 1
It is provided to prevent scratches on the surface of the.

FIG. 5 shows, in addition to the two projections 11 and 12 for preventing scratches provided on the surface of the door 1 constructed as described above,
1 schematically shows an example in which two projections 13 and 14 for reducing frictional resistance are provided on the back surface of the door 1. The two projections 13 and 14 for reducing frictional resistance are similar to the two projections 11 and 12 provided on the surface of the door 1 in that the projection 13 on the right side is higher in height and width than the projection 14 on the left side. It is formed large.

As described above, when the cartridge 4 is taken out in the normal state by providing the two protrusions 13 and 14 of different sizes on the back surface of the door 1, only the large protrusion 13 on the right side of the cartridge 4 is removed. The protrusion 14 on the left side is in a position where it contacts the upper surface and does not contact the cartridge 4. Further, even when the cartridge 4 is erroneously inserted, the left protrusion 14 is located above the shutter 5 of the cartridge 4 and does not come into contact therewith. Therefore, the conventional frictional resistance reduction shown in FIGS. 14 and 15 is used. Like the protrusion 7 of
It is possible to prevent the occurrence of troubles such as the shutter 5 hitting the projection 7 and being caught, and the cartridge 4 cannot be taken out.

Further, as shown in FIGS. 5 and 6, the tip portions of the right side projections 11 and 13 provided on the front surface and the back surface of the door 1 and having a large height and width are formed in a concave shape. By thus forming the tip portions of the right protrusions 11 and 13 in a concave shape, the contact area with the cartridge 4 can be reduced, and therefore the frictional resistance when contacting the cartridge 4 can be reduced. it can.

[0029]

EFFECTS OF THE INVENTION Since the present invention is configured as described above, when the cartridge is inserted, the protrusion for preventing scratches and the protrusion for reducing frictional resistance hit the shutter or the like of the cartridge to cause a trouble. Since it is possible to prevent the cartridge from occurring, the cartridge can be reliably taken out, and there is no restriction on the positional relationship between the incorrect insertion stopper and the door for responding to the incorrect insertion of the cartridge, and the panel can be freely designed. It has become possible.

Further, since it is possible to prevent the occurrence of the trouble that the shutter of the cartridge hits the scratch preventing projection or the friction resistance reducing projection, the position of the erroneous insertion stopper is not restricted. It has become possible to expand the degree of freedom in designing the recording / playback mechanism. In addition, even if the cartridge is inserted at an angle, it will not hit the protrusions for preventing scratches, so that the insertion opening of the cartridge can be made wider,
The insertion operation of the cartridge can be facilitated.

[Brief description of drawings]

FIG. 1 is a perspective view schematically showing an embodiment of an information recording / reproducing apparatus according to the present invention.

FIG. 2 is a front view schematically showing a schematic configuration for explaining the operation of the information recording / reproducing apparatus shown in FIG.

3 is a front view schematically showing a schematic configuration for explaining the operation of the information recording / reproducing apparatus shown in FIG.

4 is a front view schematically showing a schematic configuration for explaining the operation of the information recording / reproducing apparatus shown in FIG.

FIG. 5 is a plan view schematically showing another embodiment of the protrusion provided on the door.

FIG. 6 is a side view schematically showing a main part of the protrusion shown in FIG.

FIG. 7 is a perspective view schematically showing a conventional information recording / reproducing apparatus.

8 is a front view schematically showing a schematic configuration for explaining an operation of the information recording / reproducing apparatus shown in FIG.

FIG. 9 is a perspective view schematically showing an example of erroneous insertion of a cartridge in a conventional information recording / reproducing apparatus.

10 is a front view schematically showing a schematic configuration for explaining the operation of the information recording / reproducing apparatus shown in FIG.

11 is a side view schematically showing a schematic configuration for explaining the operation of the information recording / reproducing apparatus shown in FIG.

12 is a side view schematically showing a schematic configuration for explaining the operation of the information recording / reproducing apparatus shown in FIG.

13 is a side view schematically showing a schematic configuration for explaining the operation of the information recording / reproducing apparatus shown in FIG.

FIG. 14 is a side view schematically showing a schematic configuration for explaining the operation of another configuration example of the conventional information recording / reproducing apparatus.

15 is a side view schematically showing a schematic configuration for explaining the operation of the information recording / reproducing apparatus shown in FIG.

[Explanation of symbols]

1 door Protrusions to prevent scratches 4 cartridges 5 shutters 6 Incorrect insertion stopper 7, 13, 14 Protrusions for reducing frictional resistance 8 Recording / playback mechanism 9 body 10 Insertion port 11 Right protrusion 12 Left protrusion

Claims (5)

[Claims] 1. A cartridge having a writable recording medium and an insertion opening for loading the cartridge,
A main body which records an information signal on the recording medium and reproduces the information signal from the recording medium, a door attached so as to open and close an insertion opening of the main body in accordance with an insertion / ejection operation of the cartridge, and a door of the door. An information recording / reproducing apparatus having a plurality of projections for preventing scratches provided on the surface, wherein only one of the projections is in contact with the cartridge. apparatus. 2. A cartridge having a writable recording medium and an insertion opening for loading the cartridge,
A main body which records an information signal on the recording medium and reproduces the information signal from the recording medium, a door attached so as to open and close an insertion opening of the main body in accordance with an insertion / ejection operation of the cartridge, and a door of the door. An information recording / reproducing apparatus provided with a plurality of projections for reducing frictional resistance provided on the back surface, wherein only one of the projections is in contact with the cartridge. Playback device. 3. The information recording / reproducing apparatus according to claim 1 or 2, wherein the protrusions are formed with different heights, and only the protrusion formed at the highest height is brought into contact with the cartridge. Information recording / reproducing apparatus. 4. The information recording / reproducing apparatus according to claim 1, wherein the protrusions are formed so as to have different heights and widths, and only the highest and widest protrusion is brought into contact with the cartridge. An information recording / reproducing apparatus characterized by the above. 5. The information recording / reproducing apparatus according to claim 1, 2 or 4, wherein the protrusions are formed with different heights and widths, and the tip of the highest and widest protrusion is formed. An information recording / reproducing apparatus characterized in that a concave shape is formed.