JPH02285578A - Recording medium player - Google Patents

Abstract

PURPOSE:To protect a recording medium player from robbery and to prevent the recording medium player from being damaged by mischief by composing the recording player of a middle cover part to freely move an opening and closing body to an enclosure and to open and close an inserting port and an outer cover part, which is equipped with the operation part of a recording medium playing means in the enclosure, to be engaged with the middle cover part freely attachable and detachable by a lock means. CONSTITUTION:The recording medium player is composed of a middle cover part 6 and an outer cover part 7. The middle cover part 6 freely moves an opening and closing body 5, which is provided to cover the inserting port of a recording medium formed in the front surface part of the enclosure so as to be freely opened and closed, and to open and close the inserting port. The outer cover part 7 is equipped with the operation part to operate the operation of the recording medium playing means provided in the enclosure and freely attached and detached to the middle cover part 6. Namely, when the recording medium player is loaded on a car and a user parks the car and goes out away from the car, the outer cover part can be detached. The recording medium player, for which the outer cover part 7 including the operation part is detached, can not be discriminated at a glance and even when the player is discriminated, the other person is not so attracted since there is no opera tion part and function can not be presented. Thus, the player can be protected from the robbery and damage caused by the mischief.

Description

TECHNICAL FIELD The present invention relates to a recording medium playing device such as a cassette tape recorder, and more particularly to the structure of a recording medium playing device having a recording medium insertion port such as a small cassette tape recorder.

BACKGROUND ART In the case of an in-vehicle recording medium performance device such as a tape recorder, such as a so-called car stereo device, which is installed near the driver of an automobile, the area allowed for its operating surface is extremely limited. For example, it is common to provide not only an insertion slot for a cassette half as a recording medium but also an operation control circuit, a display circuit, etc. for the cassette tape recorder main body within a small area of about 18 x 5 cm.

The equipment should be installed in a location that is extremely easy for the driver to operate.
There is only a very limited space such as a dash board or a part of a console, so it is necessary to add a circuit for operating and displaying the tuner function of the radio to the limited small area of 18 x 5 c + n mentioned above. is required.

One solution for efficiently housing these various circuits in such a small area is to use the dustproof door covering the cassette half insertion slot also as the dial part of the radio, as disclosed in Japanese Utility Model Publication No. 4329326, for example. This method makes effective use of wasted space when a car stereo with a radio is used as a radio receiver, but when used as a recording media playing device such as a tape recorder, this dustproof door is Since it is pushed into the inside of the main body when inserting the cassette half, it is impossible to use it as a space for arranging display or control circuit elements. In addition, such a door requires not only a space for the door itself, but also a hinge mechanism, a design process, etc. around the door, which results in an extra area being taken up.

Recently, there has been a strong demand for advanced control functions for recording media performance devices such as tape recorders, and PLAY (playback) is the basic control function for tape recorders.
, FF (fast forward), REW (rewind), 5TOP
(Stop), EJECT (tape eject), power switch, volume, sound quality adjustment, etc., as well as skip song selection that allows you to select programs for each song, multi-song selection that allows you to select several programs, and repeat playback of each song. , tape type selection (normal, chrome, metal), Dolby switching (OF
Various functions such as FSB type, C type), tape running direction switching (in the case of an auto-reverse machine), etc. are required, and considering the switching control of these functions and the device for displaying them, all these functions can be accommodated in a space of approximately 18 x 5 cm. It is difficult to provide display, control, etc. circuits. Particularly when audio equipment is integrated with a radio tuner function in addition to a tape recorder function, or even a video function such as a television set or VTR (video tape recorder) in addition to these audio functions. If added, display and control of each of these functions will be required, but it will be impossible to arrange them all in the above-mentioned small space.

In particular, the display that displays operational information related to the operation of the performance section, tuner, etc., and performance information related to the content of the performance must have a relatively large area for the operator to be able to recognize the displayed content. However, as mentioned above, if the recording medium insertion slot is located at the front of the performance device, it is difficult to increase the area of the display, and the display may not be able to fully demonstrate its display function. There is.

A recording medium performance device that solves this problem is disclosed, for example, in Japanese Patent Laid-Open No. 150103/1983. In the recording medium playing device disclosed in this publication, an operating section for operating the operation of the playing means and a display section for displaying the operating status of various functions, etc. are provided on the lid body provided to close the recording medium insertion port. etc. are provided.

In this way, by actively expanding the area of the operation section or display section using the cover of the recording medium insertion slot, the area of the operation section or display section has increased as control functions have become more sophisticated, and the control information and performance information that should be displayed have increased. It is now possible to handle an increase in information content.

SUMMARY OF THE INVENTION An object of the present invention is to provide a recording medium playing device equipped with a recording medium insertion opening/closing lid body having such an operation section, etc., which particularly protects the device from theft and prevents it from being damaged by mischief. Moreover, it is an object of the present invention to provide a recording medium playing device with good operability.

In the recording medium playing device according to the present invention, the opening/closing body provided to cover the recording medium insertion port formed in the front part of the casing so as to be openable and closable is movable with respect to the casing and opens and closes the insertion port. It consists of an inner lid part and an outer lid part that includes an operation part for operating the operation of the recording medium playing means inside the housing and is detachably locked to the inner lid part by a locking means. A convex portion and a recess are provided on one and the other of the inner lid portion and the outer lid portion, respectively, and guide the outer lid portion to a locking position by the locking means by engaging with each other, and the outer lid portion is It is characterized in that the outer cover part is accurately guided to the position where it should be locked when it is attached to the inner cover part.

Embodiments Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

1 to 8 show a cassette deck as a first embodiment of the present invention.

The cassette deck is, for example, 1. The main part is a casing, that is, a cabinet part 2, which is removably inserted into a holding space through an insertion opening of a holding box fixed to the dash board of an automobile, and the front part, that is, the front panel part of this cabinet part 2, is a main part. It is exposed outside the holding space.

As shown in Figures 1 and 2, the cassette deck is
In order to insert a cassette tape (not shown) as a recording medium, an opening/closing body 5 is provided to cover a cassette tape insertion slot 4 formed in the front panel section 3 in a freely openable/closable manner. As shown in FIGS. 3 and 4, the opening/closing body 5 is composed of an inner lid portion 6 and an outer lid portion 7. As shown in FIGS.

The inner lid part 6 is made of a steel plate or the like and has a rectangular plate shape as a whole, and is swingable at one end in the short direction on a support pin 9 fixed to the lower front end of the cabinet 2 via a bracket 8. is attached to. In addition, the inner lid part 6
is the front panel section 3 including the cassette tape insertion slot 4.
The cassette tape insertion slot 4 is opened and closed by swinging.

On the other hand, the outer lid part 7 is made of a rectangular parallelepiped hollow housing made of resin or the like, and is detachably attached to the inner lid part 6.

As shown in Fig. 3 and Fig. 4 (Ca) and crest), a pair of protrusions 6a are protruded from the main surface of the inner lid portion 6, and a permanent magnet 10a is fixed to the tips of the protrusions. has been done. The combined body consisting of the convex portion 6a and the permanent magnet 10a has a conical shape with the top cut off as a whole. On the other hand, a conical recess 7a is formed on the back surface of the outer cover 7, into which the combined body consisting of the protrusion 6a and the permanent magnet 10a can be fitted.

The bottom surface of the recess 7a is formed by a disk-shaped permanent magnet 11, and the permanent magnet 10 provided on the inner lid 6 and this permanent magnet 11 are attracted to each other.

The two permanent magnets 10 and 11 described above cause the outer lid part 7 to
A locking means is configured to removably lock the inner lid portion 6 to the inner lid portion 6. In this embodiment, the permanent magnets 10 and 11 are used only at the tip of the convex portion 6a and at the concave portion 7, respectively.
Although the permanent magnets are provided only on the bottom surface of a, the structure is not limited to this, and each permanent magnet may be provided over substantially the entire surface of the mutually facing surfaces of the inner lid part 6 and the outer lid part 7. In addition, the locking means is not limited to a structure consisting of a pair of permanent magnets that attract each other in this way, but also a structure consisting of a permanent magnet and an electromagnet, a structure consisting of two electromagnets, or a structure that is not magnetized. Examples include a structure consisting of a magnetic member and a permanent magnet or electromagnet that attracts the magnetic member. When an electromagnet is used in this way, it is also possible to configure the electromagnet to be energized to generate magnetic force only when the outer lid part 7 is attached to the inner lid part 6. In addition, in combinations of permanent magnets and electromagnets, and locking means consisting of electromagnets,
When removing the outer cover part 7 from the inner cover part 6, if the magnetism of the electromagnet (only one electromagnet is used in the case of a combination of electromagnets) is reversed, the inner cover part 6 and the outer cover part 7 can be separated. During this time, a repulsive force due to magnetic force is generated, and the outer lid portion 7 can be easily removed. However, energizing the electromagnet and reversing its polarity can be done by operating an operation button or the like provided on the lid of the inner lid 6 or outer lid 7 where the electromagnet is installed. preferable. In addition, in the case where the electromagnet is configured to be energized only when it is attached to the outer cover part 7 or the inner cover part 6 as described above, the outer cover part 7 is attached to the inner cover part 6 and at the same time, the attachment force is used to It is preferable to arrange the operation buttons so that they are automatically operated.

By the way, as mentioned above, the convex part 6a and the recessed part which guide the outer cover part 7 toward the locking position with respect to the inner cover part 6 by fitting into each other are provided on the mutually opposing surfaces of the inner cover part 6 and the outer cover part 7. 7a, the outer lid part 7 can be easily attached to and removed from the inner lid part 6, and operability is improved. As shown in the figure, these convex portions 6a and concave portions 7a guide the outer lid portion 7 in a direction substantially perpendicular to the front surface of the outer lid portion. Because of this configuration, it is easy to attach and detach the outer lid part 7 to and from the inner lid part 6, especially when the inner lid part 6 is in the closed position.

In addition, in this embodiment, the convex portion 6a is provided on the inner lid portion 6, and the recessed portion 7a is provided on the outer lid portion 7, but conversely,
The convex portion may be provided on the outer lid portion 7 and the recessed portion may be provided on the inner lid portion 6. However, if the outer lid part 7 is provided with a recessed part, there is an advantage that it is easy to hold when the outer lid part is removed from the apparatus and carried around, as will be described later. Further, although the convex portion 6a and the concave portion 7a are formed in a conical shape, these shapes may be, for example, hemispherical or any other shape as long as they can be smoothly engaged with each other.

Note that, as described above, by fitting the concave portion 7a of the outer cover portion 7 into the convex portion 6a of the inner cover portion 6, movement of the outer cover portion 7 in the left-right direction and the vertical direction is restricted. As shown in FIG. 3, when the inner lid part 6 is in the closed position that closes the cassette tape insertion slot 4, the outer lid part 7 attached to the inner lid part 6 protrudes further forward than the front panel part 3 of the cabinet. Movement in the vertical and horizontal directions is also restricted by the edge 2a of 2, thereby preventing the outer lid part 7 from being removed from the inner lid part 6.

As is particularly clear from FIG. 5, a fan-shaped gear 13 is rotatably attached to one of the pair of support pins 9 that swingably supports the inner lid part 6. It is fixed to the side of 6. The sector gear 13 is connected to an output shaft 19 of a motor 18 via a speed reduction mechanism formed by combining a plurality of gears 15 to 17.

The fan-shaped gear 13, the speed reduction mechanism, and the motor 18 constitute a driving means for swinging the inner lid portion 6 in response to a lid driving signal issued from a control circuit to be described later.

As shown in FIGS. 2, 3, and 6, the inner lid 6
A locking member 21 having a pin 21a is fixedly provided on the back surface of the right end portion. As shown in FIG. 6, a pin 21a of a locking member 21 is attached to a fixed chassis 22 provided inside the cabinet 2 by a claw portion 23a provided at its free end.
A lock lever 23 is swingably attached via a support pin 23'b to engage with the lock lever 23. A solenoid plunger 25 is provided below the locking lever 23, and a rod 25a of the solenoid plunger is connected to a connecting pin 25b.
It is connected to the locking lever 23 by.

Further, the locking lever 23 is provided with a torsion coil spring 26.
are connected. In this configuration, when the solenoid plunger 25 attracts the rod 25a, the locking lever 23 swings to the position shown by the solid line in FIG. When the power is turned off, the locking lever 23 swings to the position shown by the two-dot chain line in FIG. 6 due to the biasing force of the coil spring 26, and is released from the locking member 21.

The above-described locking member 21, locking lever 23, and solenoid plunger 25 constitute a middle cover locking means for locking the middle cover 6 to the casing, that is, the cabinet 2. By providing this inner lid locking means, the opening/closing body 5 consisting of the inner lid 6 and the outer lid 7 is firmly fixed to the cabinet 2, as shown in FIG. Even if the opening/closing body 5 is added, the opening/closing body 5 will not open or close.

As shown in FIGS. 1 and 7, on the surface of the outer lid part 7,
An operation section including various operation switches for operating the cassette tape playing device etc. provided in the cabinet 2, and a display section 3 are provided. Furthermore, a display drive circuit for driving the display section is built in the outer lid section 7.

As is particularly clear from FIG. 7, electronic volume control switches 32 and 33 are provided on the operating section on the outer cover 7. While the switches 32 and 33 are pressed, respectively, the volume is set to high and low. Further, control switches 35 to 40 are provided for performing the skipping song selection operation, and these are used to output a command to select the previous (or subsequent) song. A fast forward switch 42, a rewind switch 43, and a switch 45 for commanding tape running direction switching during auto-reverse are arranged on the sides of the control switches 35 to 40.

Further, the door oven switch 47 is for opening the above-mentioned opening/closing body 5, and the source changeover switch 4 below it is for opening the above-mentioned opening/closing body 5.
Reference numeral 8 is for selecting which of a cassette deck, a tuner, and a digital audio disc player the operating section is to be used as. In addition,
The illustrated cassette deck has a built-in tuner function, and the disc playing portion of the digital audio disc player is provided separately from the cassette deck. A sensor 49 is provided below the source changeover switch 48 to receive a signal from a remote controller for remotely controlling the operating section.

When the auto sound leveler switch 51 is pressed, the volume automatically decreases when the vehicle is stopped, and increases when the vehicle is running, when the noise becomes louder.

A shift switch 52 is provided below the volume control switches 32 and 33, and a loudness switch 53, a clock switch 54, an illumination changeover switch 55, etc. are arranged in this order on the side of the shift switch.

By pressing the illumination changeover switch 55, the color of the illumination on the display section 31 is changed to green or red, for example. At the bottom of the display section 31 are disposed changeover switches 56a to 56c for selecting which of the cassette deck, tuner, and digital audio disc player functions to be displayed on the display section 31.

On the other hand, when using a cassette deck, the display section 3 provided on the outer cover 7 along with the above-mentioned operation section displays information such as the tape playing time, operation mode, and whether side A or side 8 is being played. Display. Also, when using a tuner, it displays music selection information, operating mode, etc., and when using a digital audio disc player, displays elapsed disc playing time, operating mode, etc. As described above, a display drive circuit for driving the three display sections is housed inside the outer lid section 7.

As shown in FIG. 2, an eject switch 57 for ejecting the cassette tape out of the cassette deck is disposed on the back side of the inner lid 6. In addition, the front panel section 3 includes an inner lid section 6.1! : A door opening detection switch 59 is provided for detecting opening/closing of the inner lid portion 6 by engagement.

The operating section provided on the above-mentioned outer lid section 7 and the cabinet 2
The transmission and reception of each signal to and from the CPU (control circuit) provided inside is carried out through terminal groups 61 and 62 arranged correspondingly on the back surface of the outer cover 7 and the surface of the inner cover 6, respectively. This is done by being connected. In addition, the terminal group 6
1 and 62, the cabinet l-2
Power is supplied to the outer lid part 7 from the side. Each of these terminal groups 6
1 and 62 are connected by attaching the outer cover part 7 to the inner cover part 6, and are disconnected by removing the outer cover part 7 from the inner cover part 6. In addition, as mentioned above, the outer lid part 7
Since the display drive circuit for driving the second display section 31 is not provided on the cabinet 2 side but is placed inside the outer lid section 7, the number of terminals in the terminal groups 61 and 62 is reduced.

Next, the opening/closing operation of the opening/closing body 5 and the attaching/detaching operation of the outer lid part 7 of the cassette deck having the above-described structure will be explained with reference to FIGS. 8 and 9.

When opening the opening/closing body 5 in the closed position shown in FIG. 1, the door open switch 47 is pressed among the switches on the keyboard provided on the outer cover 7. As shown in FIG. 9, signals emitted from the keyboard 70 are sent to the CPU (control circuit) 72 in the cabinet 2 via the interface 7, and the CPU 72 follows the operating program defined in the ROM (read-only memory) 73. And RAM
(Random access memory) 74 is used to issue a drive signal to the temotor 18 and solenoid plunger 25 via drive circuits (DRV) 75 and 76, respectively. When the door open switch 47 is pressed, the CPU 72 first cuts off the power supply to the solenoid plunger 25,
Release the locked state between the locking member 21 and the locking lever 23,
The inner lid part 6 can be freely swung. Then, the output shaft 19 of the motor 18 is rotated clockwise in FIG. The driving force of the motor 18 is applied to each gear 15 to 17 shown in FIG.
is transmitted to the fan-shaped gear 13 integral with the inner lid part 6, and the opening/closing body 5 consisting of the inner lid part 6 and the outer lid part 7 swings toward the open position shown in FIG. When the inner lid section 6 swings to the open position, the door open detection switch 59 on the front panel section 3 is activated.
When activated and changed from ON to OFF, C
The PU 72 stops the motor 18 after a predetermined period of time has passed after the door open detection switch 59 is activated.

The opening/closing body 5 thus reaches the open position shown in FIG. In this state, the eject switch 57 on the back side of the inner lid part 6 can be pressed, and by pressing the eject switch, a cassette tape (not shown) is inserted into the cassette deck through the cassette tape insertion slot 4 of the front panel part 3. It is discharged outside and can be collected by the operator. When the operator parks the car equipped with the cassette deck and leaves the vehicle, the operator can take out the outer cover part 7 from the inner cover part 6 and carry it with him.

When the outer lid part 7 is removed from the inner lid part 6 in the state shown in FIG. For example, when the terminal for supplying power to the outer cover 7 from the cabinet 2 side is disconnected, the inner cover 6 is closed based on the flowchart shown in FIG. Return to position. That is, when the supply of power supply voltage to the predetermined input port door 8 is cut off (step S+), the CPU 72 waits for a preset time T (for example, 2 to 3 seconds) to elapse (step S
2 and S3), then the output shaft 19 of the motor 18 is rotated counterclockwise in FIG. 5 (step S4).

Therefore, the inner lid portion 6 swings toward the closed position shown in FIG. When the inner lid part 6 reaches the close vicinity of the closed position, the door open detection switch 59 on the front panel part 3 is turned on by the inner lid part 6 (step S5), and the motor 18 is stopped (step Se). . Furthermore, the motor 18
At the same time as the solenoid plunger 25 shown in FIG.
The locking lever 23 is engaged with the locking member 21 integrated with the inner lid portion 6. Thus, the inner lid part 6
is fixed in the closed position shown in FIG.

Now, when the operator returns to the automobile and attaches the outer cover part 7 that he was carrying with him to the inner cover part 6, he can do this while the inner cover part 6 is in the closed state.

That is, as shown in FIGS. 2 and 4(a), the outer lid part 7 is brought close to the main surface of the inner lid part 6 in the closed state almost perpendicularly. Then, the recess 7a formed on the back surface of the outer lid 7 fits into the protrusion 6a of the inner lid 6, thereby guiding the outer lid 7 to the locking position with respect to the inner lid 6. Then, the permanent magnets 10 and 11 provided on the inner lid part 6 and the outer lid part 7 are attracted to each other, and the outer lid part 7 is locked to the inner lid part 6.

Note that the attachment and detachment of the outer cover 7 to the inner cover 6 is not limited to when the inner cover 6 is in the closed position, as described above.
This is also possible when the inner lid portion 6 is in the open position shown in FIG.

When the outer lid part 7 is attached to the inner lid part 6 in this way, the inner lid part 6
The connection terminal groups 61 and 62 of the outer lid portion 7 are connected to each other. The CPU 72 detects the connection between the connection terminal groups, and accordingly cuts off the power supply to the solenoid plunger 25, releases the engagement state between the locking member 21 and the locking lever 23, and closes the inner lid portion 6. Allows for free swinging.

In the embodiment described above, the fact that the outer lid part 7 is removed from the inner lid part 6 is detected when the power supply port to the outer lid part 7 is disconnected. However, the present invention is not limited to this, and, for example, a detection switch for detecting attachment/detachment of the outer lid 7 may be provided on the inner lid 6 and the inner lid 6 may be returned to the closed position in response to a detection signal from the detection switch.

Further, in the embodiment, the inner lid portion 6 is reciprocated in the opening direction and the closing direction by the driving means including the motor 18, but the inner lid portion 6 is driven only in the closing direction by the driving means. , the inner lid portion 6 may be opened manually.

In this case, it is conceivable to provide the drive force transmission mechanism that transmits the drive force of the motor 18 to the inner lid portion 6 with a so-called one-way clutch that transmits the drive force in only one direction.

Historically, instead of driving the inner lid part 6 in the closing direction by the motor 18 as described above, a spring is used as a driving source and energy is applied to the spring when moving the inner lid part 6 from the closed position to the open position. Furthermore, a locking mechanism is provided to fix the inner lid part 6 to the front panel part 3 when the inner lid part 6 reaches the open position, and when the outer lid part 7 is removed from the inner lid part 6. It is also possible to adopt a structure in which the fixing state of the inner lid part 6 by this locking mechanism is released and the inner lid part 6 is moved to the closed position by the above-mentioned spring.

Figures 10 to 13 show a cassette deck as a second embodiment of the present invention. The cassette deck is constructed in the same manner as the cassette deck shown in FIGS. 1 to 9 except for the parts described below, and will not be described in detail. In addition, in the following description, the same reference numerals are used for the same or corresponding parts as those of the cassette deck shown in FIGS. 1 to 9.

As shown in FIGS. 10 and 11, the outer lid part 7 is the inner lid part 6.
It is removably attached to. More specifically, as shown in FIG. 12, a concave portion or groove 80 is formed at each end of the outer lid portion 7 in the longitudinal direction, and a convex portion or groove 80 is formed at both ends of the inner lid portion 6 in the longitudinal direction. The groove 80 is slidably engaged with the end 81 of the U-shaped bent portion.

In addition, an engagement recess 82 having a pointed portion on the back surface of the outer lid portion 7 is provided.
is formed, and the engagement recess 82 is formed in the front part of the inner lid part 6.
A pointed engagement convex portion 83 that can be fitted into is formed.

When attaching the outer lid part 7 to the inner lid part 6, these engaging recesses 82
When the engagement convex portions 83 and 83 engage with each other, the outer lid portion 7 is guided to the locking position with respect to the inner lid portion 6, and its movement in the longitudinal direction, that is, in the left-right direction is restricted.

As shown in FIGS. 10 and 11 and FIG. 13(a), a locking plate 85 formed by fixing a leaf spring in a cantilevered manner is attached to the back surface of the outer lid portion 7. A locking protrusion 85a is attached to the free end of the locking plate 85. On the other hand, the inner lid portion 6 is formed with a claw-shaped opening 86 into which the locking protrusion 85a can engage.

As shown in FIGS. 11, 12, and 14 (ω), there are two rectangular plate-shaped permanent magnets 8 on the bottom surface of the outer cover 7.
A permanent magnet 88 is fixed to the inner lid portion 66, and an electromagnet 89 is provided in order to attract the permanent magnet 88 and each other. The electromagnet 89 includes a pair of magnetic cores 89a provided to face the permanent magnet 88, and a single electromagnetic coil 89b wound around both cores 89a.

The locking plate 85, the opening 86 of the inner lid 6, the permanent magnet 88, and the electromagnet 89 constitute a locking means for locking the outer lid 7 to the inner lid 6. There is. Note that the CPU 72 controls the energization and disconnection of the electromagnet 89.
(shown in FIG. 8). Also, CPU7
2 includes a polarity reversing means for reversing the polarity of the electromagnet 89 in accordance with a polarity reversal command signal. In addition, the electromagnet 89
The polarity is reversed by operating a switch 90 provided on the back surface of the inner lid portion 6.

In this embodiment, the permanent magnet 88 is provided in the outer lid part 7 and the electromagnet 89 is provided in the inner lid part 6; Lid part 6
may be provided.

The opening/closing operation of the opening/closing body 5 and the attaching/detaching operation of the outer lid part 7 in the cassette deck having the above configuration are performed in the same manner as in the cassette deck as the first embodiment shown in FIGS. 1 to 8, and therefore will not be described in detail. .

In the case of the cassette deck, when the operator parks and leaves the car equipped with the cassette deck, the 13th
(in the figure), the locking protrusion 28a of the locking plate 28 of the outer cover 7 is pressed down with a finger to bend the locking plate, as shown by the two-dot chain line, and the outer cover 7 is engaged with the inner cover 6. The user can release the stopped state, pull out the outer lid part 7 from the inner lid part 6, and carry it with him or her. In addition, at this time, the operation switch 9
If the polarity of the electromagnet 89 of the inner lid part 6 is reversed by operating ゜, a repulsive force due to magnetic force will be generated between the inner lid part 6 and the outer lid part 7, and the two points (in Fig. 14) will be generated. As shown by the chain line, the outer lid part 7 is pushed out by this repulsive force,
This can be easily taken out. In addition, it is also possible to configure the polarity reversal operation switch 90 to be activated at the same time when the locking plate 28 is pressed down with a finger.

Now, when the operator returns to the car again and attaches the outer cover part 7 that he carried with him to the inner cover part 6, another door arranged on the front side of the inner cover part 6 as shown in FIG. All you have to do is press the oven switch 92.

When the door open switch 92 is pressed, the inner lid 6 opens in the same way as in the operation described above, and the outer lid 7 can be attached to the inner lid 6.

Effects of the Invention As detailed above, in the recording medium playing device according to the present invention, the opening/closing body provided to cover the recording medium insertion hole formed in the front part of the housing so as to be openable and closable is movable with respect to the housing. An inner lid part that freely opens and closes the insertion port, and an outer lid part that includes an operating part for operating the operation of a recording medium playing means provided in the housing and is detachable from the inner lid part. It consists of

That is, for example, if the recording medium playing device is mounted in a car, the outer cover can be removed and carried when the car is parked and the car is left. A recording media performance device from which the outer cover including the operating section has been removed cannot be identified as such at first glance, and even if it could be identified, it would not be able to perform its functions because it does not have the operating section. It reduces its attractiveness and protects it from damage caused by theft or mischief.

Furthermore, even if the outer cover is removed, the inner cover covers the recording medium insertion slot, making it even more difficult to confirm the presence of the recording medium playing device, and it appears that no recording medium playing device is installed. There is little risk of theft or mischief.

Further, in the recording medium device according to the present invention, convex portions are provided on one and the other of the inner lid portion and the outer lid portion, respectively, and guide the outer lid portion to a locking position with respect to the inner lid portion by engaging with each other. and a recess.

Therefore, the outer cover can be easily and accurately attached to and removed from the inner cover, resulting in good operability.

[Brief explanation of drawings]

FIG. 1 is a perspective view of a cassette deck as a first embodiment of the present invention, FIG. 2 is a perspective view of the cassette deck shown in FIG. 1 with the opening/closing body opened, and FIGS. 3 and 4. is the first
A perspective view and a plan view, each including a partial cross section, showing how the outer cover including the operating section is attached to and removed from the cassette deck shown in the figure, and FIGS. 5 to 7 are shown in FIGS. 1 to 4. FIG. 8 and FIG. 9 are block diagrams and operation explanatory diagrams showing the respective operation control systems of the cassette deck shown in FIGS. 1 to 7, and FIG. 10 is an enlarged view of a part of the cassette deck according to the present invention. FIG. 11 is a perspective view showing a state in which the opening/closing body of the cassette deck as a second embodiment of the invention is opened, and FIG. , FIG. 12 is a perspective view showing the state after the outer cover is removed from the cassette deck shown in FIGS. 10 and 11, and FIG. 13 and FIGS. FIG. 13 is a partially enlarged view and an operation explanatory diagram of the cassette deck shown in FIG. 12; Explanation of symbols of main parts 2...Cabinet 3...Front panel 5...Opening/closing body 6...Inner lid part 6a...
Convex portion 7... Outer lid portion 7a...
・Recessed portions 10, 11.88... Permanent magnet 18... Motor 2]... Locking member 23... Locking lever 25... Solenoid plunger 28...
- Locking plate 3]...Display section 32, 33, 3
5.36.37.38, 39.40... Control switch 47.92... Door open switch 5
7...Eject switch 59...Door close detection switch 89...
·electromagnet

Claims (5)

[Claims] (1) A casing that has an insertion slot on the front surface into which a recording medium carrying an information signal is inserted and surrounds a playing means; A recording medium playing device including an opening/closing body provided with an operating section for operating operations, the opening/closing body being movable relative to the casing and opening/closing the insertion opening; an outer lid part that includes the operating part and is removably locked to the inner lid part by a locking means,
It is characterized by having a convex part and a concave part provided on one and the other of the inner cover part and the outer cover part, respectively, and guiding the outer cover part to a locking position by the locking means by engaging with each other. Recording media performance device. (2) The recording medium performance device according to claim 1, wherein the recess is provided in the outer lid. (3) The recording medium playing device according to claim 1 or 2, wherein the concave portion and the convex portion guide the outer lid portion in a direction substantially perpendicular to the front surface of the outer lid portion. (4) Claims 1 to 3, wherein the locking means comprises a permanent magnet or an electromagnet provided on either one of the inner lid portion or the outer lid portion, and a magnetic member provided on the other. The recording medium performance device according to any one of the above. (5) The locking means includes an electromagnet provided on one of the inner lid portion and the outer lid portion, a permanent magnet provided on the other, and a polarity reversal means for reversing the polarity of the electromagnet. A recording medium playing device according to any one of claims 1 to 4, characterized in that: