JPH0778461A - Front panel and recording and/or reproducing device - Google Patents

Abstract

PURPOSE:To engage respective rack gears provided on a external housing body and a sliding lid supported with freely sliding thereon via a pinion gear and thereby lengths of respective rack gears are made half of a stroke of the sliding lid. CONSTITUTION:A guide pin provided at a front face of a panel part 2 is engaged with a guide slit of a cover plate fixing a lid cover 4 and the cover 4 is supported with freely sliding by energizing to D direction with a spring 105. Pinion gears 52, 53 are interposed between rack gears 75, 81 provided on the cover 4 and a rack gear 56, 56 provided on the panel part 2 and are engaged with each other and thereby the cover 4 is vertically slid. Consequently, gears 52, 53 move half of the sliding distance of the cover 4 and gears 75, 81, 56 suffice to move only half of the sliding distance of the cover 4. Thus, the sliding distance of the cover 4 an opening though which a disk tray is inserted is satisfactorily secured and the device can be miniaturized in the D direction.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention has a front panel which constitutes a front surface portion of an outer casing of an electronic device such as a recording and / or reproducing apparatus, and an outer casing which is equipped with this front panel. Recording and / or reproducing apparatus.

[0002]

2. Description of the Related Art Conventionally, there has been proposed a recording and / or reproducing apparatus configured to record and / or reproduce an information signal by using a recording medium, such as a so-called optical disk play. Such a recording and / or reproducing apparatus has an outer housing whose front part is composed of a front panel,
A recording and / or reproducing unit for recording and / or reproducing an information signal with respect to the recording medium is arranged in the outer housing. As the recording medium, a recording disk such as an optical disk, a magneto-optical disk, a magnetic disk, or a recording tape configured as a tape cassette is used.

The front panel is formed with an opening through which the recording medium is inserted and through which the recording medium can be moved in and out of the outer housing. This opening is formed to have, for example, a horizontally elongated slit shape corresponding to the shape of the recording medium. The opening is provided when the recording medium is inserted, that is, when the recording and / or reproducing apparatus is not in use and when the recording and / or reproducing section of the recording medium is provided. After the mounting is completed, the lid member opens the lid. This lid member, by closing the opening, by the entry of dust into the outer casing,
It is intended to prevent an unexpected accident such as damage to the recording and / or reproducing unit due to careless entry of fingers and the like into the outer housing.

The lid member is rotatably or slidably attached to the front panel and is moved to open and close the opening.

By the way, various operation buttons for operating the recording and / or reproducing section are arranged on the front surface of the front panel.

[0006]

By the way, in the recording and / or reproducing apparatus having the front panel as described above, when the size of the opening becomes large in accordance with the size of the recording medium, the opening becomes large. The size of the lid member also increases corresponding to the portion. When slidably supporting the lid member, the slidable stroke of the lid member must be at least larger than the width of the lid member. Therefore, when the size of the lid member increases, the sliding stroke increases, and the length of the member supporting the lid member in the sliding direction of the lid member increases, so that the lid member cannot be housed in the outer housing. . Therefore, when the lid member becomes large, the slide stroke cannot be enlarged.

Even when the lid member is rotatably supported, if the lid member becomes large, the lid member is rotated forward or inside the outer casing. The protrusion amount of this lid member toward the side becomes large,
The operation on the operation button cannot be performed smoothly.

In the recording and / or reproducing apparatus, the number of operation buttons used only when a specific operation mode is selected has increased with the diversification of operation modes. Further, in recent years, due to the improvement of the function of the remote controller (remote operation device), various operations on the recording and / or reproducing unit can be performed without using the operation buttons arranged on the front panel. ing. As described above, since most of the operation buttons are not used in the normal use state of the recording and / or reproducing apparatus, it is rather an aesthetic obstacle, that is, the front panel of the recording and / or reproducing apparatus. It hinders the freedom of design.

Therefore, in the recording and / or reproducing apparatus, the lid member is used not only for opening and closing the opening, but also for covering and concealing an operation button which is not normally used. However, the lid member is
If it is configured to cover not only the opening but also the operation button, it becomes larger than the lid opening, and the slide stroke cannot be enlarged.

Therefore, the present invention has been proposed in view of the above-mentioned circumstances, and in the case where the opening through which the recording medium is inserted is enlarged and the lid member for opening and closing the opening is enlarged. Another object is to provide a front panel capable of slidably supporting the lid member with a sufficient stroke without increasing the size of the device.

Further, the present invention is constructed by including the front panel according to the present invention described above, and at least a part of the operation buttons arranged on the front panel slides according to the operation mode. An object of the present invention is to provide a recording and / or reproducing apparatus which is covered with the lid member which is supported so as to be exposed or is exposed to the outside.

[0012]

In order to solve the above problems and achieve the above objects, a front panel according to the present invention comprises:
A panel section having an opening through which a recording medium is inserted and a first rack gear, and a second rack gear.
A pinion gear is interposed between the rack gear and the first rack gear and meshed with these rack gears so as to be slidably supported and slid on the panel portion to open and close the opening. And a member.

Further, the front panel according to the present invention has a panel portion having an opening portion through which a recording medium is inserted and operated, and the opening portion is opened and closed by being slidably supported and slid on the panel portion. A lid member to cover,
The rotating body cam includes a rotating body cam that is rotated by the rotation driving means, and a transmission mechanism that is moved according to the rotating body cam and slides the lid member. A first cam portion formed in one rotation direction from an initial position, which is a closed position to close the lid, to an open position, which is an open position to open the opening of the lid member;
A second cam portion formed in the other rotation direction from the initial position to the lid opening position, and the transmission mechanism includes the first cam portion.
When the lid member is rotated in a direction to follow the cam portion, the lid member is moved through the first movement history to open the lid, and the transmission mechanism is rotated in a direction to follow the second cam portion. When operated, the lid member is opened after the second movement history.

According to the present invention, the front panel is provided with a stopper member which is moved in accordance with the third cam portion formed on the rotating body cam. When in the initial position,
When the lid member is set to the initial position that prevents the lid member from being slid to the open position, and the rotary member cam is rotated to slide the lid member, following the third cam portion,
The lid member is moved to a position retracted from the slide locus.

Further, according to the present invention, the above-mentioned front panel is provided with a detection switch for detecting that the stopper member is in the initial position.

In the recording and / or reproducing apparatus according to the present invention, a panel section having an opening through which a recording medium is inserted and operated, and the above-mentioned opening by being slidably supported and slid on the panel section. A front panel having a lid member for opening and closing the portion and a driving means for slidingly operating the lid member, and a control means for controlling the operation of the driving means are provided, and the control means in the first operation mode. In the initial state, the lid member is set to a closed position that covers the opening and the operation button disposed in the vicinity of the opening, and the lid member is opened and the operation button is instructed to open the lid. Is opened to the outside, and in the second operation mode, the lid member is initially set to the half-open position that covers the opening and the operation button is exposed to the outside, and the opening of the lid is instructed. Tato The lid member is made form the said open position.

Further, in the recording and / or reproducing apparatus of the present invention, the drive means is a rotary cam and a rotary drive means controlled by the control means to rotate the rotary cam and the rotary cam. And a transmission mechanism for moving the lid member to slide the lid member. The rotary cam sets the lid member to the open position from an initial position where the lid member is in the closed position. It has a first cam portion formed in one rotation direction over the opening position and a second cam portion formed in the other rotation direction over the opening position from the initial position, In the first operation mode, the control means sets the rotary body cam to the initial position in the initial state, and causes the rotary body cam to transmit the transmission mechanism to the first cam portion when the lid opening is instructed. Rotate in the direction to imitate In the second operation mode, in the initial state, the rotary cam is rotated in the direction in which the transmission mechanism is made to follow the second cam portion, and the lid member is in the half open position. In other words, when the opening of the lid is instructed, the rotary cam is rotated to the opening position in the direction in which the transmission mechanism follows the second cam portion.

[0018]

In the front panel according to the present invention, the second
A rack gear, and a pinion gear is interposed between the second rack gear and the first rack gear provided on the panel portion so as to mesh with each of these rack gears so that the rack gear is slidably supported on the panel portion. The lid member that opens and closes the opening formed in the panel portion by being operated is slid with respect to the first rack gear by a distance twice the moving distance of the pinion gear. Therefore, it is sufficient for each of the rack gears to have a length that is half the sliding stroke of the lid member.

Further, in the front panel according to the present invention, the rotary cam that is rotated by the rotary drive means closes the lid member slidably supported by the panel portion to close the opening portion of the panel portion. A first cam portion that is formed in one rotation direction from an initial position that is a position to an open position that is an open position that opens the opening of the lid member,
A second cam portion that is formed in the other rotation direction from the initial position to the lid opening position, and a transmission mechanism that slides the lid member that is moved and operated in accordance with the rotary cam. When the lid member is rotated in a direction to follow the first cam portion, the lid member is opened through the first movement history,
When the transmission mechanism is rotationally operated in a direction to follow the second cam portion, the lid member is opened with the second movement history, so that the rotational direction is selected and rotationally operated. By doing so, the lid member is slid through one of two types of movement history.

Further, a stopper member is provided on the front panel, the stopper member being moved in accordance with the third cam portion formed on the rotary cam, and the stopper member is provided when the rotary cam is at the initial position. , An initial position that prevents the lid member from sliding to the open position,
When the rotary cam is rotated to slide the lid member, the lid is moved to a position retracted from the slide track of the lid member, following the third cam portion. The member is not slid to the open position by an external force when the rotary cam is not rotated.

Further, when the front panel is provided with a detection switch for detecting that the stopper member is in the initial position, the rotary member cam rotates to the open position and the cover member opens. When the rotary cam returns to the initial position after being slid to the position, if the cover member is prevented from returning to the closed position by an external force, the cover member returns to the closed position. You can detect that you are not.

In the recording and / or reproducing apparatus according to the present invention, the control means for controlling the operation of the drive means for sliding the lid member slidably supported with respect to the panel portion has the first operation. In the mode, in the initial state, the lid member is set to the closed position that covers the opening provided in the panel and the operation button arranged near the opening, and the lid is opened when the opening is instructed. The member is set to an open position where the opening and the operation button are exposed to the outside, and in the second operation mode, the lid member is covered in the initial state so that the operation button is exposed to the outside. Position and none,
When the opening of the lid is instructed, the lid member is set to the open position. Therefore, the position of the lid member in the initial state is changed according to the operation mode, and whether or not the operation button is exposed to the outside is selected. .

Further, in the recording and / or reproducing apparatus, the drive means follows the rotary drive means and the rotary cam which are controlled by the rotary cam and the control means to rotate the rotary cam. A rotating mechanism for moving the lid member to slide the lid member, wherein the rotary cam has an opening position where the lid member is in an open position from an initial position where the lid member is in a closed position. And a second cam portion formed in the other rotation direction from the initial position to the opening position from the initial position to the control means. In the first operation mode, the rotating body cam is set to the initial position in the initial state, and when the opening of the lid is instructed, the rotating body cam is made to follow the transmission mechanism to the first cam portion. Rotation direction to the open position And, in the second operation mode,
In the initial state, the rotary cam is connected to the transmission mechanism by the second
When the lid member is instructed to be in the half-open position, the rotary member cam is moved to the second cam portion when the lid is opened. When it is decided to rotate the lid to the open position in the direction of copying the position, whether the operation button is exposed to the outside by changing the position of the lid member in the initial state according to the operation mode. The selection can be performed by selecting the rotational operation direction of the rotary cam.

[0024]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Specific embodiments of the present invention will be described below with reference to the drawings. As shown in FIGS. 2 and 3, the front panel according to the present invention constitutes the front side portion of the outer housing 100 of the recording and / or reproducing apparatus according to the present invention. In this example, the recording and / or reproducing apparatus according to the present invention is configured as a disk player which reproduces the video disc by using an optical video disc recorded with a video signal and an audio signal as an information signal as a recording medium. It is an example. This video disk is composed of a disk-shaped disk substrate made of a transparent synthetic resin material and a reflective layer made of a metal material adhered to the disk substrate. Fine irregularities (pits) corresponding to information signals are formed on the disc substrate by means such as injection molding.
Are formed. A circular through hole for chucking is formed in the center of the video disc.

[Overview of Disc Player] As shown in FIG. 2, this disc player is arranged with a drive shaft facing upward on a main chassis (not shown) provided on the bottom surface of the outer casing 100. It has a spindle motor 95 installed. The drive shaft of this spindle motor 95 is
A disc table 94 holding the central portion of the video disc 201 is attached. That is, in this disc player device, the video disc 20
In No. 1, the peripheral portion of the circular through hole at the center is held by the disc table 94, and is rotated by the spindle motor 95 together with the disc table 94. An optical pickup device 96 movably supported by guide shafts 98 and 99 is arranged on the main chassis. This optical pickup device 96 has an objective lens 97, and this objective lens 97
Are opposed to and supported by the video disc 201 held on the disc table 94. The optical pickup device 96 includes the guide shafts 98 and 99.
Along with the objective lens 97 through the video disc 20.
The video disc 201 can be moved over the inner and outer peripheries of the video disc 201 in a state of being opposed to No. 1.

The optical pickup device 96 emits a luminous flux from the objective lens 97, irradiates the luminous flux on the video disc 201, and detects the reflected luminous flux of the luminous flux from the video disc 201 to detect the luminous flux. It is configured to read the information signal recorded on the disc 201.

The disc player has a disc tray 91 in which the video disc 201 is placed and which carries the video disc 201, in the outer casing 100. The disc tray 91 is formed of a material such as synthetic resin into a substantially rectangular flat plate shape, and the circular recess 9 corresponding to the video disc 201 is formed on the upper surface of the disc tray 91.
Have two. The video disc 201 is fitted in the circular recess 92, supported at the outer peripheral edge thereof, and placed on the disc tray 91. Further, the disc tray 91 has a notch portion 93 through which the disc table 94 and the optical pickup device 96 are inserted, from approximately the center portion to the rear edge portion.
The disc tray 91 is housed in the outer casing 100 and the center portion of the disc tray 91 corresponds to the disc table 94 shown in FIG. 2 and the opening 54 of the front panel, which will be described later, of the outer casing 100. As shown in FIG. 3, the unloading position shown in FIG.
As indicated by the middle arrow A, it is arranged so as to be movable in the front-rear direction.

When the disc tray 91 is in the unloading position, the circular recess 92 is formed.
The video disc 201 can be placed in and taken out from the inside. And this disc tray 91
After placing the video disc 201 in the circular recess 92 when in the unloading position,
By moving to the loading position,
Video disc 20 mounted in the circular recess 92
1 is the position above the disk table 94. When the disc tray 91 reaches the loading position, the disc table 94 is moved upward together with the spindle motor 95. Then, the disc table 94 displays the video disc 201.
Is mounted on the disc table 94,
The video disc 201 is moved upward to separate from the disc tray 91, and the video disc 2 is moved.
01 is held at a position where it does not contact the disc tray 91. The video disc 201 is rotated by the spindle motor 95 without coming into contact with the disc tray 91.

In this disc player, the video disc 201 is mounted on the disc table 94 and rotated by the spindle motor 95, so that the optical pickup device 96 reads the information signal from the video disc 201. Is done. The information signal read from the video disc 201 is subjected to signal processing by the signal processing circuit of this disc player and output as a reproduction signal.

This disc player is constructed so that it can selectively execute the first operation mode and the second operation mode. In the normal mode, which is the first operation mode, the video disc is reproduced. In the karaoke mode which is the second operation mode, the video disc is played back and the audio signal played back from the video disc and the audio signal input from the microphone connected to the disc player are mixed. And output. In this karaoke mode, the pitch of the reproduced audio signal can be variably adjusted.

The execution of various operations in this disc player is carried out under the control of a control circuit which is a control means provided in the outer casing 100.

[Construction of Front Panel] The front panel according to the present invention has a front chassis 1 attached to the front end side portion of the main chassis as shown in FIG. This front chassis 1
Has a horizontally long rectangular front portion formed by bending a material such as a metal plate, and a frame portion bent rearward from upper and lower edge portions and left and right side edge portions of the front portion. Has been formed. The front panel 1 has a lower portion of the frame portion attached to the main chassis, and is supported so that the front portion is erected on the main chassis.

On the front part of the front chassis 1,
An opening 7 is provided for inserting the disc tray 91. This opening 7 is provided in the disc tray 9 described above.
Corresponding to the front end face portion of No. 1, it is formed in a substantially oblong rectangular shape. A plurality of hooking protrusions 6 are formed on the frame portion of the front chassis 1. The hooking projections 6 are for hooking the panel portion 2 to the front chassis 1.

The panel portion 2 is made of a material such as a synthetic resin and has a front plate portion substantially corresponding to the front surface portion of the front chassis 1 and a frame portion substantially corresponding to the frame portion of the front chassis 1. And is integrally formed. That is, the panel portion 2 is formed so as to cover the front surface side of the front chassis 1 and the peripheral portion of the frame portion by being attached to the front chassis 1.
The panel portion 2 has a plurality of hooked claws 5 projecting rearward and corresponding to the hooking projections 6 at the rear end edge portion of the frame portion. This panel section 2 is shown in FIGS.
As shown in FIG. 5, each of the hooks 5 to be locked is attached to the front chassis 1 by being hooked on each of the hooking projections 6. An opening 54 is formed in the front plate portion of the panel portion 2 so as to correspond to the opening portion 7 of the front chassis 1. These openings 7 and 54 are provided in the panel portion 2 described above.
Are attached to the front chassis 1 so as to face each other. That is, the opening 54 has a size and shape that allows the disc tray 91 to be inserted therein, and is formed substantially at the center of the front plate portion of the panel portion 2.

The panel section 2 is located above the opening 54 and has first to fourth operation buttons 101, 10.
2, 103, 104 are provided. These operation buttons 1
Reference numerals 01, 102, 103, and 104 are arranged so as to be movable in the front-rear direction with respect to the panel portion 2, and are not shown in the figure and are arranged in the outer casing 100 by being pressed. The switch on the board is pressed correspondingly. The switch on the circuit board is connected to the control circuit. These operation buttons 10
Reference numerals 1, 102, 103 and 104 are used in the karaoke mode, and are respectively associated with operations performed only in the karaoke mode such as pitch reduction, normal pitch, pitch increase and song selection. Further, a plurality of push buttons 58, 65, 65 are provided at positions on both sides of the opening 54.
An operation unit composed of 66, 67, 68, 69 is provided. These push buttons 58, 65, 66, 67, 68, 6
9 are respectively arranged so as to be movable in the front-rear direction with respect to the panel portion 2, and by being pressed,
The switches on the circuit board are pressed correspondingly. The switch on the circuit board is connected to the control circuit. These push buttons 58, 65, 66,
67, 68, and 69 are used in the normal mode and the karaoke mode, respectively.
It is associated with the operation executed in any of the normal mode and the karaoke mode such as power-on, reproduction start, reproduction stop, reproduction primary stop, video disc eject (that is, movement operation of the disc tray 91). When either the operation button or the push button forming the operation section is operated, the control circuit causes the operation button operated or the operation associated with the push button to be executed.

Further, in the panel section 2, a mode changeover switch 84 and a volume adjusting knob 82 which are disposed in the outer casing 100 at positions below both side portions and are connected to the control circuit or the signal processing circuit. , 83, 86, 8
7, a through hole 60 for exposing the headphone jack 85 and the microphone jacks 89, 90 to the outside on the front side,
61, 62, 63, 70, 71, 72, 73, 74 are formed. In addition, the opening 54 of the panel portion 2
A display window portion 6 for allowing the display device arranged in the outer casing 100 to be visually recognized from the outside at a position below
4 are provided.

As shown in FIGS. 10 to 14, a lid member for opening and closing the opening portion 54 is attached to the panel portion 2. The lid member includes a lid plate 3 and a lid cover 4. The cover plate 3 is made of a material such as a metal plate from the lower edge of the opening 54 to the upper edge of the front plate of the panel 2, that is, the opening 54 and the operation buttons 101, 102 ,. It is formed in a substantially flat plate shape that is long enough to cover 103 and 104.

Both side portions of the cover plate 3 are inserted into a pair of slits 57 formed on the panel portion 2 on both sides of the opening 54, and the front plate portion of the panel portion 2 is inserted. It is entering the back side. On both side edges of this lid plate 3,
As shown in FIGS. 17 and 18, support pins 111, 111 are provided so as to protrude toward the lateral sides, respectively. The cover plate 3 engages the support pins 111, 111 with the support slits 112, 112 provided on the back surface of the panel portion 2 on both sides of the pair of slits 57. As a result, it can be slid vertically. In addition, the lid plate 3 has a pair of first rack gears 5 formed on both sides of the cover plate 3 on the back surface of the panel portion 2 behind the support slits 112, 112.
It faces 6,56. A pair of second rack gears 75, 81 facing the pair of first rack gears 56, 56 are formed on both sides of the cover plate 3. Then, each of these first rack gears 56, 56
And pinion gears 52 and 53 are respectively interposed between the second rack gears 75 and 81 and mesh with the rack gears 56, 56, 75 and 81. In addition, each of these pinion gears 52, 53 has a pinion gear support shaft 51.
The shaft portions are coaxially connected to each other via. That is, when the lid plate 3 is slid, the pinion gears 52 and 53 are moved to the first and second rack gears 5 respectively.
6, 56, 75, 81 are rolled, and together with the pinion gear support shaft 51, as indicated by an arrow J in FIG.
The lid plate 3 is moved by a distance half the sliding distance. These pinion gears 52 and 53 prevent the lid plate 3 from tilting and support it, and make the lid plate 3 slide smoothly.

The cover plate 3 is provided with a guide slit 77 in the vertical direction. In the guide slit 77, the guide pin 5 protruding from the front surface of the panel portion 2 is provided.
5 is inserted. The cover plate 3 has the guide pins 5
17 corresponds to the length of the guide slit 77 shown by an arrow H in FIG. 17 from the position where the guide pin 55 contacts the lower end of the guide slit 77 to the position where the guide pin 55 contacts the upper end of the guide slit 77. It is slidable within the range of the distance.

The above rack gears 56, 56, 75, 81
Corresponds to the moving distance of each of the pinion gears 52 and 53, and is formed to have a length which is approximately half the slidable distance of the cover plate 3.

The lid plate 3 is provided between a hooking piece 76 projecting from the back surface of a side portion of the lid plate 3 and a hooking portion 110 on the back surface of the front plate of the panel 2. As shown by an arrow D in FIG. 7, the torsion coil spring 105 provided in the above position elastically biases the spring upward.

The lid cover 4 is formed of a material such as a synthetic resin into a flat plate shape having a size corresponding to the lid plate 3. The lid cover 4 is attached to the front surface of the lid plate 3 by screwing, and covers the front surface of the lid plate 3.

When the lid member is located on the uppermost side of the slidable range, as shown in FIG. 4, the opening 5 is formed.
4 and the operation buttons 101, 102, 103, 104 are closed. When the lid member is located at the lowermost side of the slidable range, as shown in FIG. 6, the opening 54 and the operation buttons 101, 10 are provided.
The open position is made to face the front side of 2, 103, 104. When the lid member is located approximately in the middle of the slidable range, as shown in FIG. 5, the lid member is half-opened so as to cover the opening 54 and expose the operation buttons 101, 102, 103, 104 to the front side. Made with position.

As shown in FIGS. 16 and 20, the front chassis 1 is provided with a cam motor 15 serving as a rotation driving means. This cam motor 15
Are attached to the motor support plate 9 attached to the front chassis 1. This motor support plate 9
As shown in FIG. 9, the front end side is attached to the lower portion of the frame portion of the front chassis 1 and is extended and supported rearward. The motor support plate 9 is located below the one side portion of the opening 7. A notch 8 continuous with the opening 7 is formed at a position corresponding to the motor support plate 9 on the front surface of the front chassis 1. That is, the motor support plate 9 faces the front side of the front surface portion of the front chassis 1 through the cutout portion 8.

As shown in FIG. 21, a worm wheel 14 meshing with a worm gear 16 attached to the drive shaft of the cam motor 15 is provided on the motor support plate 9.
It is rotatably attached via a support shaft 13. The worm wheel 14 is integrally formed with a first transmission gear which is a coaxial spur gear. The first transmission gear meshes with a second transmission gear 17 rotatably mounted on the motor support plate 9. A first straight bevel gear 18 is coaxially and integrally formed with the second transmission gear 17. Further, a position detection brush 19 having a plurality of (for example, four) contact portions is attached to the second transmission gear 17. The position detecting brush 19 slidably contacts a plurality of (for example, four) conductor patterns on the position detecting substrate 10 provided on the motor support plate 9 in association with the contact portions. The rotational angular position of the second transmission gear 17 can be detected by detecting the sliding contact state of the contact portion of the position detecting brush 19 with the conductor pattern based on the potential of the conductor pattern. .

The drive control of the cam motor 15 and the detection of the rotational angular position of the second transmission gear 17 are performed by the control circuit in the disc player.

A transmission mechanism support plate 24 is attached to the front chassis 1 so as to close the cutout portion 8. The transmission mechanism support plate 24 is formed in a flat plate shape, and support piece portions 25, 25 on both end sides are screwed to the front plate portion of the front chassis 1. Also,
The cam support plate 35 is provided on the front surface of the transmission mechanism support plate 24.
Is attached. On this cam support plate 35, a cam support shaft 36 is planted toward the rear side. As shown in FIGS. 21 to 23, a substantially disk-shaped rotating body cam 28 constituting a transmission mechanism is rotatably attached to the cam support shaft 36. The rotary cam 28 is located between the cam support plate 35 and the transmission mechanism support plate 24. The rotary cam 28 has a columnar portion that projects rearward from the central portion. The columnar portion extends through the notch 34 provided in the transmission mechanism support plate 24 and extends rearward of the front surface portion of the front chassis 1. The tip of this columnar portion is located near the center of the second transmission gear 17, that is, on the first straight tooth bevel gear 18. On the tip side of this column,
A second straight tooth bevel gear 31 that meshes with the first straight tooth bevel gear 18 is formed. Each of these straight bevel gears 18, 31
Have the same number of teeth. That is, the rotary cam 2
8 has an angular velocity equal to that of the second transmission gear 17, and is rotated by the driving force of the cam motor 15. Therefore, the rotation angle position of the second transmission gear 17 detected via each conductor pattern on the rotation detection substrate 10 also corresponds to the rotation angle position of the rotating body cam 28.

As shown in FIGS. 22 and 23, the slider 20 and the swing arm 48 constituting the transmission mechanism are attached to the transmission mechanism support plate 24. The slider 20 has a pair of support slits 21 and 21 formed with the longitudinal direction being the horizontal direction, and the support pins 115 planted in the transmission mechanism support plate 24 are provided in these support slits 21 and 21. , 115 are slidable in the lateral direction as shown by arrows L and K in FIG. In this slider 20,
Through hole 3 for inserting the cylindrical portion of the rotary cam 28
3 is formed. The slider 20 has a tension coil spring 23 stretched between a spring retaining piece 22 provided on the slider 20 and a spring retaining piece 114 provided on the transmission mechanism supporting plate 24. The front chassis 1 is elastically biased toward the center of the front chassis 1 and is positioned at the initial position.

The swing arm 48 is rotatably supported at its base end side portion with respect to the front surface portion of the transmission mechanism support plate 24 via a support shaft 45. As shown in FIG. 19, the swing arm 48 has a tip end side having the opening 7
Of the slider 20, and the vicinity of the base end is exposed to the slider 20 through an arcuate through hole 27 provided in the transmission mechanism support plate 24. This swing arm 48
A linking pin 49 is planted near the base end of the. The linking pin 48 is inserted and engaged with a linking slit 109 formed in the slider 20 with the longitudinal direction being the vertical direction. That is, when the slider 20 slides against the urging force of the tension coil spring 23, the swing arm 48 interlocks with the slide of the slider 20 and, as shown by an arrow M in FIG. Axis 45
It is rotated in the direction of moving the tip side portion downward. When the panel portion 2 is attached to the front chassis 1 when the slider 20 is in the initial position, the tip end side portion of the swing arm 48 is as shown in FIGS. 7, 15 and 16. The panel portion 2 is inserted through the opening 54 and is located on the front side of the front plate portion of the panel portion 2 and on the back side of the lid plate 3. The tip end side portion of the swing arm 48 enters between the lower end edge portion of the lid plate 3 and the pinion gear support shaft 51. A pressed pin 79 is planted at a lower edge portion of the cover plate 3 and a position below the tip end side portion of the swing arm 48. When the swing arm 48 is rotated in the direction of moving the tip side portion downward, as indicated by an arrow E in FIG. 26, the pressing edge 50 which is a lower edge portion of the tip side portion causes the swing arm 48 to move. The pressing pin 79 is pressed to slide the cover plate 3 downward as shown in FIG.

On the slider 20, the rotary cam 2 is attached.
A first copying pin 113 facing the main surface on the back side of 8 is planted. This first copying pin 113 is shown in FIG.
As shown in, the position of the slider 20 is determined by following the first and second cam portions 29a and 29b formed on the main surface portion on the rear surface side of the rotary cam 28.

The first cam portion 29a is formed from the 0 position indicated by N in FIG. 25 to the 180 position indicated by O in FIG. The first cam portion 29a is formed such that the distance from the central hole 32 through which the cam support shaft 36 is inserted gradually increases from the 0, position to the 180, position. When the rotating body cam 28 is at the initial position, the copying pin 113 contacts the first cam portion 29a at the 0, position to move the slider 20.
Is the initial position. At this time, the copying pin 113 is
The position is closest to the center hole 32. At this time, the lid member is in the closed position.

Then, when the rotary cam 28 is rotated in one direction shown by an arrow W in FIG. 25, the copying pin 113 is moved following the first cam portion 29a,
The slider 20 is slid against the biasing force of the tension coil spring 23. The rotary cam 28 is 1
80, when the lid is rotated to the open position, the copying pin 113 moves the first cam portion 29a at the 180, position.
Is in contact with. At this time, the copying pin 113 is set to a position farthest from the center hole 32, that is, a position where the distance from the center hole 32 is substantially equal to the radius of the rotating body cam 28. At this time, the lid member is in the open position.

As described above, when the copying pin 113 is moved following the first cam portion 29a, the slider 20 and the lid member are moved by the rotary cam 2
When 8 is rotated at a constant speed, the speed is uniform. Such sliding of the lid member at a uniform speed is the first movement history and is used for sliding the lid member in the normal mode.

Then, the rotary cam 28 is
When rotated in the other direction from the 0, position to the 0, position as indicated by arrow X in FIG. 25, the lid member traces the first movement history in the reverse direction and returns to the closed position. To do.

The second cam portion 29b has the above-mentioned 180,
From the position, 360 shown at N in FIG. 25, the position (ie,
It is formed on the opposite side of the first cam portion 29a through the center hole 32 of the rotating body cam 28 over the 0 position. In the second cam portion 29b, the distance from the central hole 32 through which the cam support shaft 36 is inserted gradually decreases from the 180, position to the 360, position, and is shown by Q in FIG. Approximately 270, near the position, as shown in FIG.
It is formed to have a concentric circular portion indicated by a middle arrow R.
When the rotating body cam 28 is at the initial position, the copying pin 113 moves the second cam portion 29 at the 360, position.
The slider 20 is brought into the initial position by abutting b. At this time, the copying pin 113 is located at a position closest to the center hole 32. At this time, the lid member is in the closed position.

When the rotary cam 28 is rotated in the other direction shown by the arrow U in FIG. 25, the copying pin 113 is moved following the second cam portion 29b,
The slider 20 is slid against the biasing force of the tension coil spring 23. When the rotary cam 28 is rotated about 90 ° to the half-opened position, the copying pin 113 is in contact with the second cam portion 29b at the 270, position. At this time, the copying pin 113 is positioned such that the distance from the center hole 32 is about half the radius of the rotary cam 28. At this time, the lid member is in the half-open position.

When the rotary cam 28 is further rotated by about 90 degrees to the open position as shown by the arrow T in FIG. 25, the copying pin 113 is moved to the second position at the 180, position. It is in contact with the cam portion 29b. At this time, the copying pin 113 is at a position farthest from the center hole 32. At this time, the lid member is in the open position.

As described above, when the copying pin 113 is moved following the second cam portion 29b, the slider 20 and the lid member are moved by the rotary cam 2
When 8 is rotated at a constant speed, the speed is such that it is temporarily stopped on the way. Such a slide in which the lid member temporarily stops on the way is the second movement history and is used when the karaoke mode is selected and when the lid member is slid in the karaoke mode.

The rotary cam 28 is replaced by the 18
When the cover member is rotated in one direction from the 0 position to the 360 position as indicated by the arrow S and the arrow V in FIG. 25, the lid member traces the second movement history in the reverse direction and the half open state. After the position, it returns to the closed position.

A stopper arm 47 serving as a stopper member is rotatably attached to the cam support plate 35 via a support shaft 42. This stopper arm 47
The base end side is supported by the support shaft 42, the tip end side is directed upward, and is positioned in front of the rotary body cam 28. The stopper arm 47 is extended by a tension coil spring 39 stretched between a spring retaining piece 41 provided on one side and a spring retaining portion 40 provided on the cam support plate 35. As indicated by F, the tip end side is rotationally biased in a direction in which it is separated from the central portion of the rotating body cam 28. A second copying pin 43 fitted in a third cam portion 30 formed in a groove shape on the main surface portion on the front surface side of the rotary cam 28 is planted in the middle of the stopper arm 47. . The second copying pin 43 is moved by the biasing force of the tension coil spring 39 to cause the third copying pin 43 to move to the third position.
The cam portion 30 is positioned along the outer peripheral edge of the cam portion 30.

The tip portion of the stopper arm 47 is bent in the horizontal direction to form the contact portion 44. The abutting portion 44 is located immediately below the abutted piece 80 protruding from the back surface of the cover plate 3 when the stopper arm 47 is in the initial position. When the stopper arm 47 is in the initial position and the lid member in the open position is slid downward, when the lid member reaches the half-open position, the contacted piece 80 contacts the contact member 80. It abuts against the contact portion 44 and prevents the lid member from sliding below the half-open position. And this stopper arm 47
However, as indicated by an arrow G in FIG.
When the lid member in the open position is slid downward when it is pivotally operated toward the center of the contact piece 80, the contacted piece 80 passes through the side of the contact portion 44, and The member can be slid to the open position. Further, when the lid member is slid below the half-open position, the stopper arm 47 is moved to the initial position by the contact portion 44 contacting the side surface portion of the contacted piece 80. Is prevented from returning.

As shown in FIG. 24, the third cam portion 30 sets the stopper arm 47 to the initial position at the 0 position indicated by N in FIG. 24, and is indicated by O in FIG.
At the 0 position, the stopper arm 47 is formed so as to rotate against the biasing force of the tension coil spring 39. When the lid member is slid according to the first movement history, the rotating body cam 28 moves to the position shown in FIG.
4 At a position of about 40 indicated by P, that is, when the lid member reaches the position corresponding to the half-open position and then moves toward the open position, the rotation operation of the stopper arm 47 is started. The rotary cam 28 is
When the lid member is slid according to the second movement history, the position and the range of about 270 indicated by Q in FIG.
At the 60 position, that is, while the lid member is moving from the half-open position to the open position, the rotation operation of the stopper arm 47 is started.

That is, the stopper arm 47 is set to the initial position that prevents the lid member from sliding to the open position when the rotating body cam 28 is in the initial position, and the rotating body cam 28 rotates. When the lid member is operated and slid, the lid member is rotated along the third cam portion 30 while the lid member is sliding,
The contact portion 44 is moved to a position retracted from the movement trajectory of the contacted piece 80 of the lid member.

On the other side of the stopper arm 47, a detected piece 108 is projected. As shown in FIG. 7, the detection switch 10 is provided on the rear surface of the panel unit 2.
7 are provided. The detection switch 107 detects that the stopper arm 47 is in the initial position.
The control circuit of the disc player considers that the lid member is not returned to the closed position when the stopper arm 47 is not returned to the initial position, and the reproduction operation is instructed even if the execution of the reproduction operation is instructed. Do not run.

[Operation of Disc Player] In this disc player having the front panel according to the present invention configured as described above, the power is turned on and the normal mode is selected by the mode selector switch 84. Then, the control circuit sets the lid member to the closed position in the initial state. At this time, the lid member can slide up to the half-open position by an external force, but the stopper arm 47 prevents the lid member from sliding below the half-open position. Then, when a movement operation of the disc tray 91 is instructed by the operation portion, the control circuit slides the lid member to the open position according to the first movement history, and moves the disc tray 91 to the front side. Move to the unloading position. Then, in this state, when the operation section gives an instruction to store the disc tray 91 in the outer casing 100, the control circuit causes the disc tray 91 to be stored.
After moving to the loading position, the lid member is slid to the closed position by reversing the first movement history. That is, at this time, the slider 2
The first copying pin 113 of 0 is the first cam portion 29a.
On the other hand, it is copied from the 180, position to the 0, position. At this time, if the video disc 201 is placed on the disc tray 91, the video disc 2
01 is mounted on the disk table 94. When the return of the lid member to the closed position is hindered by an external force after the disc tray 91 is set to the loading position, the stopper arm 47 does not return to the initial position. Then, the stopper arm 47 returns to the initial position when the lid member returns to a position higher than the half-open position. When the video disc 201 is mounted on the disc table 94 and the stopper arm 47 is returned to the initial position, the video disc 201 can be reproduced.

In this disc player, the power is turned on and the mode changeover switch 84
When the karaoke mode is selected by, the control circuit sets the lid member to the half-open position in the initial state by the first half of the second movement history. At this time, the lid member does not slide downward from the half-open position.
It is blocked by the stopper arm 47. Then, when a movement operation of the disc tray 91 is instructed by the operation portion, the control circuit slides the lid member to the open position by the latter half of the second movement history, and the disc tray 91. To the unloading position on the front side. Then, in this state, when the operation section gives an instruction to store the disc tray 91 in the outer casing 100, the control circuit moves the disc tray 91 to the loading position. , The lid member is slid to the half-open position by tracing the second movement history in reverse. That is, at this time, the first copying pin 113 of the slider 20 is 180 degrees from the position of the second cam portion 29b with respect to the second cam portion 29b.
0, copied to the position. At this time, if the video disc 201 is placed on the disc tray 91, the video disc 201 is mounted on the disc table 94. When the return of the lid member to the half-open position is hindered by an external force after the disc tray 91 is set to the loading position, the stopper arm 47 does not return to the initial position. And
The stopper arm 47 returns to the initial position when the lid member returns to the half-open position. When the video disc 201 is mounted on the disc table 94 and the stopper arm 47 is returned to the initial position, reproduction of the video disc 201 according to the karaoke mode, that is, the microphone jack 8 is performed.
It is possible to perform reproduction mixed with the audio signal input from the microphone connected to 9, 90. Then, in this karaoke mode, the operation buttons 101, 10 are
2, 103 and 104 are located on the upper side of the lid member and face the outer side, and these operation buttons 101, 102, 1
Using 03 and 104, it is possible to perform pitch adjustment, song selection, and other operations specific to the karaoke mode.

In the front panel and the recording and / or reproducing apparatus according to the present invention, the first operation mode and the second operation mode are not limited to the normal mode and the karaoke mode as in the above-mentioned embodiments. . That is, in the first operation mode and the second operation mode, a mode in which the recording and / or reproducing apparatus is remotely operated by using a remote control device and the recording and / or recording mode are performed.
Alternatively, the playback device may be operated in a mode in which the operation buttons provided on the panel unit 2 are used. In this case, the operation button covered by the lid member in the closed position is not an operation button used only in the karaoke mode as described above, but is used for normal recording and / or reproducing operation. It will be one.

Further, the recording and / or reproducing apparatus according to the present invention is not limited to the apparatus which uses the optical recording disk as the recording medium as shown in the above-mentioned embodiment, but the recording tape is used as the recording medium in the cassette. It may be configured as a device that uses a tape cassette housed in the. In this case, the tape cassette is inserted into the outer housing 100 through the opening 54 and mounted in the recording and / or reproducing apparatus.

[0069]

As described above, in the front panel according to the present invention, the second rack gear is provided and the pinion gear is interposed between the second rack gear and the first rack gear provided in the panel portion. The lid member slidably supported with respect to the panel portion by meshing with each of the rack gears and slidingly operated to open and close the opening formed in the panel portion is provided with respect to the first rack gear. Then, the pinion gear is slid a distance of twice the moving distance. Therefore, the above rack gears are
It suffices that the cover member has a half of the sliding stroke of the lid member, and it is possible to downsize the device configuration in the sliding direction of the lid member while sufficiently securing the sliding stroke of the lid member.

Further, in the front panel according to the present invention, the rotary cam that is rotated by the rotary drive means closes the lid member slidably supported by the panel portion to close the opening portion of the panel portion. A first cam portion that is formed in one rotation direction from an initial position that is a position to an open position that is an open position that opens the opening of the lid member,
A second cam portion that is formed in the other rotation direction from the initial position to the lid opening position, and a transmission mechanism that slides the lid member that is moved and operated in accordance with the rotary cam. When the lid member is rotated in a direction to follow the first cam portion, the lid member is opened through the first movement history,
When the transmission mechanism is rotated in a direction to follow the second cam portion, the lid member is opened after the second movement history. Therefore, in this front panel, the rotating body cam can be slid on the lid member through one of two types of movement histories by selecting the rotating direction and rotating the same.

Then, on the front panel, there is provided a stopper member which is operated to move following the third cam portion formed on the rotary cam, and this stopper member is provided when the rotary cam is at the initial position. , An initial position that prevents the lid member from sliding to the open position,
When the rotary cam is rotated to slide the lid member, the lid is moved to a position retracted from the slide track of the lid member, following the third cam portion. The member does not slide to the open position by an external force when the rotary cam is not rotated, and can reliably protect the device and mechanism arranged on the rear side of the lid member. .

Further, when the front panel is provided with a detection switch for detecting that the stopper member is at the initial position, the rotary member cam rotates to the open position and the cover member opens. When the rotary cam returns to the initial position after being slid to the position, if the cover member is prevented from returning to the closed position by an external force, the cover member returns to the closed position. Since it can be detected that the cover member is not operated, it is possible to surely protect the device and the mechanism arranged on the rear side of the lid member.

That is, according to the present invention, even when the opening through which the recording medium is inserted is enlarged and the lid member for opening and closing the opening is enlarged, the lid member is not enlarged and the lid member is not enlarged. It is possible to provide a front panel configured to be able to slidably support the above with a sufficient stroke.

In the recording and / or reproducing apparatus according to the present invention, the control means for controlling the operation of the drive means for sliding the lid member slidably supported with respect to the panel portion has the first operation. In the mode, in the initial state, the lid member is set to the closed position that covers the opening provided in the panel and the operation button arranged near the opening, and the lid is opened when the opening is instructed. The member is set to an open position where the opening and the operation button are exposed to the outside, and in the second operation mode, the lid member is covered in the initial state so that the operation button is exposed to the outside. Position and none,
When the opening of the lid is instructed, the lid member is set to the open position.
Therefore, the control means can change the position of the lid member in the initial state and select whether to expose the operation button to the outside according to the operation mode.

Further, in the recording and / or reproducing apparatus, the drive means follows the rotary drive means and the rotary body cam for rotating the rotary body cam under the control of the rotary body cam and the control means. A rotating mechanism for moving the lid member to slide the lid member, wherein the rotary cam has an opening position where the lid member is in an open position from an initial position where the lid member is in a closed position. And a second cam portion formed in the other rotation direction from the initial position to the opening position from the initial position to the control means. In the first operation mode, the rotating body cam is set to the initial position in the initial state, and when the opening of the lid is instructed, the rotating body cam is made to follow the transmission mechanism to the first cam portion. Rotation direction to the open position And, in the second operation mode,
In the initial state, the rotary cam is connected to the transmission mechanism by the second
When the lid member is instructed to be in the half-open position, the rotary member cam is moved to the second cam portion when the lid is opened. When it is decided to rotate the lid to the open position in the direction of copying the position, whether the operation button is exposed to the outside by changing the position of the lid member in the initial state according to the operation mode. The selection can be performed by selecting the rotational operation direction of the rotary cam.

That is, the present invention is configured to have the above-described front panel according to the present invention, and at least a part of the operation buttons arranged on the front panel slide according to the operation mode. It is possible to provide a recording and / or reproducing apparatus which is covered by the lid member that is supported as possible or is exposed to the outside.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing a configuration of a front panel according to the present invention.

FIG. 2 is a partially cutaway perspective view showing a configuration of a recording and / or reproducing apparatus according to the present invention configured to have the front panel.

FIG. 3 is a perspective view of an essential part showing a state in which a disc tray is projected forward in the recording and / or reproducing apparatus.

FIG. 4 is a front view showing a state in which a lid member is in a closed position in the recording and / or reproducing apparatus.

FIG. 5 is a front view showing a state where the lid member is in a half-open position in the recording and / or reproducing apparatus.

FIG. 6 is a front view showing a state in which the lid member is in an open position in the recording and / or reproducing apparatus.

FIG. 7 is a perspective view showing a configuration of a main part of the front panel.

FIG. 8 is a front view showing the configuration of the front panel as seen through.

FIG. 9 is a plan view showing the configuration of the front panel as seen through.

FIG. 10 is a front view showing a configuration of a panel portion of the front panel as seen through.

FIG. 11 is a plan view showing a configuration of a panel portion of the front panel as seen through.

FIG. 12 is a front view showing a configuration of a panel portion of the front panel.

FIG. 13 is a rear view showing the configuration of the panel portion of the front panel.

FIG. 14 is a plan view showing a configuration of a panel portion of the front panel.

FIG. 15 is a front view of the main part of the rotary body cam, which is a main part of the front panel, showing a part of the structure of a transmission mechanism and a lid member.

FIG. 16 is a plan view of a main part showing a part of the configuration of a cam motor, the rotary cam, the transmission mechanism, and the lid member, which are main parts of the front panel.

FIG. 17 is a front view of a main part showing a part of the structure of the lid member, which is a main part of the front panel, as seen through.

FIG. 18 is a plan view of a main part showing a part of the structure of the lid member, which is a main part of the front panel, as seen through.

FIG. 19 is a front view showing a part of the configuration of a front chassis, a rotary cam, and a transmission mechanism, which are essential parts of the front panel.

FIG. 20 is a plan view showing a part of the configuration of a front chassis, a cam motor, a rotary cam, and a transmission mechanism, which are essential parts of the front panel, in a partially transparent manner.

FIG. 21 is an enlarged plan view showing the configurations of the cam motor, the rotary cam, and the transmission mechanism.

FIG. 22 is an enlarged front view showing the configurations of the rotating body cam and the transmission mechanism.

FIG. 23 is an enlarged rear view showing the configurations of the rotating body cam and the transmission mechanism.

FIG. 24 is a front view showing the shape of the rotating body cam.

FIG. 25 is a rear view showing the shape of the rotating body cam.

FIG. 26 is a partial front view showing a part of the rotating body cam, the transmission mechanism, and the lid member, which are main portions of the front panel, in a state where the lid member is in the open position.

[Explanation of symbols]

 1 ・ ・ ・ ・ ・ ・ ・ ・ ・ Front chassis 2 ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ Panel part 3 ・ ・ ・ ・ ・ ・ ・ ・ ・ Lid plate 4 ・ ・・ ・ ・ ・ ・ ・ ・ ・ Lid cover 15 ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ Cam motor 20 ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ Slider 28 ・ ・ ・ ・ ・ ・ ・ ・ ・ ・-Rotating body cam 29a --- First cam part 29b --- Second cam part 30 --- 3 cam part 47 ..... Stopper arm 48 ..... Swing arm 52, 53 ..... Pinion gear 54 ..・ ・ ・ ・ ・ ・ ・ Aperture 56 ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ First rack gear 75, 81 ・ ・ Second rack gear 104 ・ ・ ・ ・ ・ ・.... Operation buttons 107 ... ...... detection switch 201 ............ video disk

Claims (6)

[Claims] 1. A panel unit having an opening through which a recording medium is inserted and having a first rack gear, and a second rack gear, and a pinion gear is provided between the second rack gear and the first rack gear. A front panel comprising: a lid member that is slidably supported on the panel portion by interposing and meshing with each of the rack gears, and a lid member that opens and closes the opening portion by a sliding operation. 2. A panel section having an opening through which a recording medium is inserted and operated, a lid member slidably supported on the panel section, and a lid member for opening and closing the opening by sliding operation, and a rotation member. The rotating body cam is rotated by a drive unit, and the transmission mechanism is moved along with the rotating body cam and slides the lid member. A first cam portion formed in one rotation direction from an initial position, which is a closed position to close the lid, to an open position, which is an open position to open the opening of the lid member, and from the initial position A second cam portion formed in the other rotation direction over the lid position, and when the transmission mechanism is rotationally operated in a direction to follow the first cam portion, the lid member Through the first movement history to open the lid, When it is rotationally operated in the direction to modeled after the transmission mechanism to the cam portion of said second, lid member and the second let through the movement history lid opening operation by the front panel comprising. 3. A stopper member, which is moved in accordance with a third cam portion formed on the rotating body cam, is provided. When the rotating body cam is at the initial position, the stopper member has an opening position of the lid member. When the rotary member cam is rotated to slide the lid member, the position is set to a position retracted from the slide locus of the lid member, following the third cam portion. The front panel according to claim 2, wherein the front panel is moved to. 4. The front panel according to claim 3, further comprising a detection switch for detecting that the stopper member is in the initial position. 5. A panel section having an opening through which a recording medium is inserted, a lid member which is slidably supported on the panel section and is opened and closed to open and close the opening, and the lid. A front panel having drive means for slidingly operating the member and a control means for controlling the operation of the drive means are provided, and the control means opens the lid member in the initial state in the first operation mode. Section and the operation button disposed in the vicinity of the opening are not in a closed position, and the lid member is not in an open position when the opening is instructed so that the opening and the operation button are exposed to the outside. , In the second operating mode,
In the initial state, the lid member is set to a half-open position in which the opening is covered and the operation button is exposed to the outside, and when the lid opening is instructed, the lid member is brought to the open position for recording and / or reproduction. apparatus. 6. The drive means includes a rotary cam, a rotary drive means controlled by the control means to rotate the rotary cam, and a transmission for moving the slide cam to follow the rotary cam and sliding the lid member. A first mechanism, wherein the rotating body cam is formed in one rotation direction from an initial position in which the lid member is in a closed position to an open lid position in which the lid member is in an open position. And a second cam portion formed in the other rotation direction from the initial position to the opening position, the control means in the first operation mode in the initial state, The rotating body cam is set to the initial position, and when the opening of the lid is instructed, the rotating body cam is set to the first transmission mechanism.
In the second operation mode, the rotary cam is moved in a direction in which the transmission mechanism is made to follow the second cam portion in a direction in which the rotary body cam is made to follow the cam portion in the second operation mode. The lid member is rotated to form a half-open position, which is a half-open position, and when the lid opening is instructed, the rotary cam is moved in a direction in which the transmission mechanism follows the second cam portion. The recording and / or reproducing apparatus according to claim 5, which is rotated to a position.