JP4158215B2 - Recording medium recording and / or reproducing apparatus - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a recording and / or reproducing apparatus such as a disc player using a recording medium such as an optical disc on which an information signal is recorded.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, a recording and / or reproducing device such as a disk player, a tape recorder, or a video camera that has been downsized to be portable has been used.
[0003]
This type of portable recording and / or playback device is designed to reduce the size of the entire device by reducing the size of the components and electronic components that make up the device and reducing the space for storing various components. ing. Furthermore, in order to reduce the overall size of the device, the electronic circuit board on which the electronic components are mounted and which constitutes the electronic circuit is divided into a plurality of parts, which are arranged using the spaces of various mechanism parts arranged in the device body. Like to do.
[0004]
[Problems to be solved by the invention]
In this type of recording and / or reproducing apparatus, it is possible to arrange an electronic circuit board by effectively using the space in the apparatus body. When configured to be used, it is difficult to ground the electronic circuit configured on each circuit board and to further achieve electrical insulation.
[0005]
If the electronic circuit disposed in the device main body is grounded and electrical insulation cannot be ensured reliably, it malfunctions due to the influence of static electricity charged on, for example, a casing formed of synthetic resin, May damage the electronic circuit.
[0006]
Therefore, in order to protect the electronic circuit configured on the circuit board, it is considered to integrate the circuit board divided into a plurality of parts so that the electric circuit can be easily grounded or electrically insulated. However, if the circuit board is enlarged, the downsizing of the entire apparatus is hindered.
[0007]
An object of the present invention is to provide a recording and / or reproducing apparatus for a recording medium capable of reliably protecting an electronic circuit disposed in the apparatus main body while reducing the size of the apparatus itself.
[0008]
Another object of the present invention is to provide a recording and / or reproducing apparatus for a recording medium that is not affected by static electricity charged on the apparatus main body or the like.
[0009]
[Means for Solving the Problems]
  The recording and / or reproducing apparatus for a recording medium according to the present invention proposed for achieving the above-described object,A frame formed of a metal plate, provided with a recording and / or reproducing unit, and provided with at least one rotating arm; a first circuit board having a ground potential unit and attached to the frame; A lid that has a second circuit board connected to the first circuit board, is attached to a pivot arm, and is pivotally provided to the recording and / or reproducing section; A recording member and a position where the recording medium is mounted on the recording and / or reproducing unit by a rotating arm which is formed of a metal material and is rotated by a rotating operation of the lid, and a recording member, which is attached so as to sandwich the second circuit board. And / or a holder that moves between a position away from the reproduction unit, an engagement portion that is formed of a metal plate and engages with the shield member, and an abutment portion that contacts the holder, and is connected to the shield member Abutting part And a grounding member for urging in a direction to separate the lid from the holder. The shield member is electrically connected to the ground potential portion of the first circuit board via the ground member, the holder, and the frame.
[0010]
The first circuit board and the second circuit board to which the circuit board is connected are electrically shielded by a lid provided with a shield member connected to the ground potential portion. By connecting the shield member to the earthing member, the shield member is always kept in a grounded state, and static electricity is prevented from being charged to the apparatus main body.
[0011]
Here, since the earthing member has a pressing portion that presses the recording medium toward the recording and / or reproducing portion, electrostatic charging of the recording medium mounted on the recording and / or reproducing portion can be prevented.
[0012]
The lid constituting the recording and / or reproducing apparatus for the recording medium according to the present invention is provided with a window and at least one operation button, and the second circuit board disposed in the apparatus main body has an operation button. A display element is provided at a position facing at least one switch operated by a button and the window.
[0013]
  The frame has a base on which the recording and / or reproducing unit is configured on the inner side, a band-shaped member is mounted on the outer side, and is entirely housed in a half. The band-shaped member has a lid that is closed to the half. It is located between the lid and the half.
[0014]
The frame is provided with a lock portion that locks the lid in a closed position with respect to the apparatus main body.
[0020]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, a recording and / or reproducing apparatus for a recording medium according to the present invention will be described with reference to the drawings.
In the example described below, the present invention is applied to a disk player that uses an optical disk, which is a recording medium on which an information signal is recorded, as a recording medium and reproduces an information signal such as an audio signal recorded on the optical disk. .
[0021]
Prior to the description of the disk player to which the present invention is applied, a disk cartridge used as a recording medium of the disk player will be described.
[0022]
A disc cartridge used in a disc player to which the present invention is applied contains an optical disc in which an information signal such as an audio signal is recorded in advance and used exclusively for reproduction, and re-recording of an information signal such as an audio signal. A recording / reproducing type magneto-optical disk that can be used is used.
[0023]
As shown in FIGS. 1 and 2, the disc cartridge 202 containing the read-only optical disc 201 includes a cartridge main body 205 configured by abutting and joining a pair of upper and lower halves 203 and 204 to each other. The cartridge body 205 is formed in a rectangular shape having a size in which the outer peripheral diameter of the optical disc 201 is an inscribed circle, and the optical disc 201 is rotatably accommodated in a disc accommodating portion configured therein.
[0024]
A central opening 206 into which a disc table provided on the disc player side for rotating the optical disc 201 accommodated in the cartridge main body 205 enters is formed in the central portion of the lower half 204 constituting the cartridge main body 205. Yes. The central opening 206 faces a hub 207 provided at the center of the optical disc 201 in order to clamp the optical disc 201 on the disc table.
[0025]
As shown in FIG. 2, the lower half 204 is provided with a reproduction opening 208 that allows a part of the optical disk 201 to face outward in the radial direction. The opening 208 is formed from one position close to the central opening 206 to one side of the cartridge main body 205. When the disc cartridge 202 is mounted on the disc player, the optical pickup device provided on the disc player side is exposed to the reproduction opening 208 where a part of the optical disc 201 faces outward.
[0026]
A shutter 209 that opens and closes a reproduction opening 208 is attached to the cartridge body 205. The shutter 209 engages a slide guide groove 210 provided on one side surface of the cartridge main body 205 with a slide guide portion 209a provided at the base end portion, and opens and closes the reproduction opening 208 in the direction of arrow A in FIG. It is attached to be movable in the direction of arrow B. When the shutter 209 is in a position where the opening 208 is closed, the shutter 209 is locked by a shutter lock member provided in the cartridge main body 205 and is held in a position where the opening 208 is closed. When the disc cartridge 202 is inserted into the disc player, the shutter 209 held at the position where the opening 208 is closed is closed by a shutter lock member by a shutter opening member provided on the disc player side that enters the slide guide groove 210. The lock is released and the shutter opening operation member is pressed to move in the direction of arrow A in FIG. 2 to open the opening 208.
[0027]
Therefore, the disc cartridge 202 shown here is inserted into and removed from the disc player with a surface orthogonal to one side surface of the cartridge main body 205 on which the shutter 209 slides as an insertion end.
[0028]
Also, on the lower half 204 side, a pair of positioning holes 211 and 212 are provided for engaging positioning pins provided on the disc player side when the disc cartridge 202 is mounted on the disc player. The pair of positioning holes 211 and 212 are provided on both sides of the reproduction opening 209, and the positioning pins 211 and 21 are engaged with the positioning pins, so that the disc cartridge 202 is provided in the disc player. The cartridge is mounted with the cartridge being positioned in the horizontal direction.
[0029]
Further, a plurality of disc identification holes 213 for displaying the type of the disc stored in the cartridge main body 202 are provided on the other side of the lower half 204 facing the side on which the shutter 209 is attached.
[0030]
Furthermore, on both sides of the cartridge main body 205 on the insertion end side to the disc player, an engagement recess for engaging a part of the disc exchange mechanism when the disc cartridge is attached to a disc player having a disc exchange function. 214, 215 are provided. Further, on the insertion end side of the cartridge main body 205 into the disc player, there is provided a concave cartridge discriminating section 216 that enables the discriminating mechanism to discriminate the type of disc cartridge provided on the disc recording and / or reproducing apparatus side. Yes.
[0031]
As shown in FIG. 1, the disc cartridge 202 containing the read-only optical disc 201 is closed on the upper half 203 side. This is because it is not necessary to use a magnetic head device that records information signals in cooperation with the optical pickup device.
[0032]
On the other hand, a disc cartridge 222 containing a recording / reproducing magneto-optical disc 221 that enables re-recording of an information signal such as an audio signal has the above-described reproduction-only optical disc 201 as shown in FIGS. The basic configuration is substantially the same as that of the stored disk cartridge 202. The disk cartridge 222 will be described with reference to FIGS. Note that portions common to the disc cartridge 202 containing the read-only optical disc 201 are denoted by common reference numerals, and detailed description thereof is omitted.
[0033]
A disk cartridge 222 containing a recording / reproducing magneto-optical disk 221 records information signals in cooperation with an optical pickup device on the upper half 203 side corresponding to a recording / reproducing opening 228 provided on the lower half 204 side. A recording opening 229 into which the magnetic head device for performing the recording enters is provided. The shutter 230 attached to the disk cartridge 222 is formed in a U-shaped cross section so that the openings 228 and 229 provided on the upper and lower surfaces of the cartridge main body 205 can be simultaneously opened and closed, and a slide guide provided on the base end side. The piece 230a is engaged with the slide guide groove 210, and is attached to be slidable in the directions indicated by the arrows A and B in FIGS. 3 and 4 that open and close the openings 228 and 229.
[0034]
The disc player according to the present invention in which the read-only disc cartridge 202 or the recording / playback disc cartridge 222 configured as described above is used as a recording medium has an apparatus main body as shown in FIGS. And a housing 151 having a lower half 62 and an upper half 44 constituting a lid that opens and closes the open side of the lower half 62. As shown in FIG. 7, a rectangular frame 22 is disposed in the casing 151.
[0035]
As shown in FIGS. 7, 8, 9, and 10, the lower half 62 constituting the apparatus main body is formed in a rectangular housing shape with the upper surface opened. The opened upper surface side of the lower half 62 is a portion into which the disk cartridge 202 or 222 attached to the disk reproducing unit disposed in the lower half 62 is inserted and removed. On the open upper edge side of the lower half 62, as shown in FIG. 7, there is a narrow width formed from the front side of the lower half 62 to opposite sides orthogonal to the front side. A long belt-like member 32 is provided.
[0036]
The band-shaped member 32 is formed by molding a synthetic resin, and as shown in FIGS. 11 and 12, a front wall 32a facing the front side of the lower half 62, and the front wall 32a. And a pair of side walls 32b, 32c formed so as to extend in a direction orthogonal to the front wall 32a, and are formed in a substantially U shape as a whole. The belt-like member 32 formed in a substantially U shape in this way can be easily bent and deformed because the back side facing the front wall 32a is open. In particular, the pair of side walls 32b and 32c can be easily bent and deformed. Moreover, since the strip | belt-shaped member 32 is formed with the synthetic resin, even if it deform | transforms, it can restore | restore to an original shape easily. As shown in FIG. 12, the belt-like member 32 is supported by the lower half 62 such that a locking step 32 d formed on the peripheral edge on the lower end side is engaged with the opened upper edge side of the lower half 62. .
[0037]
The frame 22 disposed in the lower half 62 constituting the casing 151 is inserted through screw insertion holes 133 and 133 formed on both sides of the front wall 62a of the lower half 62 as shown in FIG. The fixing screws (not shown) are fixed to the lower half 62 by screwing screw holes 133a and 133a formed on both sides of the front wall 22a as shown in FIG. As shown in FIGS. 7 and 13, the frame 22 is formed in a rectangular shape by bending a thin metal plate such as stainless steel. The frame 22 is surrounded by a band-shaped member 32 having a substantially U-shape from the front wall 22a side to the opposite side walls 22b, 22c that are orthogonal to the front wall 22a. It is arranged in the inside.
[0038]
By the way, as shown in FIG. 11, projecting pieces 36 and 37 bent so as to be parallel to the front wall 32a are formed at the end portions of the pair of side walls 32b and 32c constituting the band-shaped member 32. . As shown in FIG. 7, the projecting pieces 36 and 37 have engaging holes 36a and 37a engaged with locking projections 22e and 22f projecting on the rear wall 22d of the frame 22 as shown in FIG. It has been drilled. The band-shaped member 32 is disposed on the outer peripheral side extending from the front wall 22a of the frame 22 to the side walls 22b and 22c, and engages the engagement protrusions 22e and 22f with the engagement holes 36a and 37a. As shown, engagement holes 32d and 32e drilled on both sides of the front wall 32a are engaged with engagement protrusions 133b and 133b projecting on both sides of the front wall 22a of the frame 22 and in the vicinity of the screw holes 133a and 133a. Together, it is supported by the frame body 22.
[0039]
Thus, the belt-like member 32 is disposed so as to be fitted onto the lower half 62, and the engagement protrusions 22e, 22f and 133b, 133b of the frame body 22 are engaged with the engagement holes 36a, 37a and 32d, 32e. Since only the belt-like member 32 is impacted, the engagement holes 36a, 37b and 32d, 32e and the locking projections are deformed while only the belt-like member 32 is deformed when an impact is applied to the belt-like member 32. Relative engagement with 22e, 22f and 133b, 133b is released, and the impact on the frame 22 is reduced. That is, when the belt-like member 32 is deformed by an impact or the like, the belt-like member 32 and the frame body 22 move relative to each other, so that the frame body 22 and the lower half 62 on which the frame body 22 is supported are moved. A direct impact is prevented from being applied, and a large impact is prevented from being applied to members such as the base plate 1 attached to the frame body 22.
[0040]
As described above, the left and right side walls 22b and 22c of the frame 22 supported by the belt-like member 32 are provided with a pair of left and right rotating arms 24 and 26, as shown in FIGS. It has been. The pivot arms 24 and 26 are pivotally supported on the support shafts 23 and 25 on the back wall 22d side of the side walls 22b and 22c of the frame 22 by pivot support holes 23a and 25a drilled on the base end side. The support shafts 23 and 25 are supported so as to be rotatable. Arc-shaped slits 119 and 122 centering on the support shafts 23 and 25 are formed in the rotating arms 24 and 26, respectively. The arc-shaped slits 119 and 122 are engaged with rotation restricting projecting pieces 120 and 123 projecting from upper end edges of the side walls 22b and 22c of the frame body 22, respectively. That is, when the pivot arms 24 and 26 are pivoted away from the frame body 22 in the direction of arrow C in FIGS. 14 and 15, the pivot positions are regulated by the pivot regulating protrusions 120 and 123. .
[0041]
As shown in FIGS. 14 and 15, spring pieces 125, 127 a, projecting portions 125 a and 127 a projecting outward are formed on the side surfaces on the distal end side on the base end side of each of the rotating arms 24 and 26. 127 is formed. These spring pieces 125 and 127 are provided with engaging holes 126 and 128 whose projecting portions 125 a and 127 a are provided on the side walls 22 b and 22 c of the frame body 22 when the rotating arms 24 and 26 are rotated to the frame body 22 side. And the free movement of the rotating arms 24 and 26 is restricted. The spring pieces 125 and 127 are elastically displaced toward the inner side of the frame body 22 when the rotary arms 24 and 26 are rotated away from the frame body 22 in the direction of arrow C in FIGS. Then, the protrusions 125a and 127a are detached from the engagement holes 126 and 128.
[0042]
As described above, the upper half 44 constituting the lid is fixed to the pair of rotating arms 24 and 26 rotatably attached to the frame 22 by a plurality of screws (not shown) on both sides of the lower surface. Attached. The upper half 44 is attached to the rotating arms 24 and 26 rotatably supported by the frame 22 disposed in the lower half 62, so that the support shafts 23 and 26 are integrated with the rotating arms 24 and 26. 25, the upper half of the lower half 62 is opened and closed.
[0043]
The upper half 44 is rotated so as to close the upper surface side of the lower half 62, and is abutted against the lower half 62 as shown in FIG. 5 to constitute a casing 151 and covers the frame body 22 from above and below. The upper half 44 and the lower half 62 are formed using a metal such as aluminum, which is a lightweight metal having conductivity.
[0044]
As shown in FIG. 17, when the upper half 44 is abutted against the lower half 62, the band-shaped member 32 disposed so as to surround the outer periphery of the frame body 22 disposed in the lower half 62. The upper half 44 and the lower half 62 are interposed. As described above, when the deformable belt-like member 32 is interposed between the upper half 44 and the lower half 62, when the shock is applied to the casing 151, the shock is caused by the deformation of the belt-like member 32. Can be absorbed and prevented from being damaged.
[0045]
When the upper half 44 is rotated to the lower half 62 side so as to close the opened upper surface side of the lower half 62, the upper half 44 is locked to the frame body 22 via the lock mechanism. A lock lever 130 is slidably provided on the front wall 22a of the frame 22 as shown in FIG. The lock lever 130 is provided with a lock piece 29 so as to protrude above the frame body 22. As shown in FIG. 6, an engagement piece 140 that engages with the lock piece 29 is provided at a substantially central portion on the front side of the upper half 44. The lock lever 130 is held in the state shown in FIG. 5 in which the upper half 44 is abutted against the lower half 62 when the engagement piece 140 is engaged with the lock piece 29 and the opened upper surface side of the lower half 62 is closed. The lock lever 130 is provided with a knob attachment piece 129 on one end side. As shown in FIG. 12, a slide knob 33 that slides along the front wall 32 a of the band-shaped member 32 is attached to the knob attachment piece 129. The lock lever 130 is urged in the direction of arrow D in FIG. 16 by which the lock piece 29 is engaged with the engagement piece 140 by a tension coil spring 131 stretched between the front wall 22 a of the frame body 22.
[0046]
The knob attaching piece 129 of the lock lever 130 is connected to the front wall of the band-shaped member 32 that is overlapped with the front wall 22a through the insertion hole 30 formed by cutting out a part of the front wall 22a of the frame body 22. It protrudes to the 32a side.
[0047]
The lock lever 130 grips the slide knob 33 and slides in the direction of the opposite arrow D in FIG. 16 against the urging force of the tension coil spring 131, thereby releasing the engagement of the lock piece 29 with the engagement piece 140. The upper half 44 can be rotated in a direction away from the lower half 62 side.
[0048]
On the lower surface side of the frame body 22 disposed so as to be positioned in the lower half 62, as shown in FIG. 7, a main circuit board formed in a rectangular shape having a size substantially equal to the planar shape of the frame body 22. The first circuit board 38 having rigidity that constitutes is attached. An electronic circuit such as a control circuit for controlling the disc player is configured on the first circuit board 38 by forming a wiring pattern on a rigid insulating board and mounting a predetermined electronic circuit component 40. . A part of the wiring pattern is provided with a ground terminal connected to the ground potential portion, and the electronic circuit is grounded via the ground terminal.
[0049]
By the way, as shown in FIG. 13, the first circuit board 38 formed in a rectangular shape is protruded from the corner of the frame 22, the front wall 22a, the side walls 22b and 22c, and the lower end edge side of the back wall 22d. The circuit board mounting pieces 104, 105, 106, 107, and 111 are fixed so that the periphery is fixed with screws, and the lower surface side of the frame body 22 is closed. The screw for attaching the first circuit board 38 to the frame body 22 was inserted into the screw insertion hole provided in the first circuit board 38 and was provided in the circuit board attachment pieces 104, 105, 106, 107, 111. The first circuit board 38 is fixed to the frame body 22 by being screwed into the screw holes.
[0050]
The first circuit board 38 is disposed in the lower half 62 together with the frame body 22 by being attached to the lower surface side of the frame body 22.
[0051]
The frame 22 formed into a rectangular shape by bending a thin metal plate that is easily bent and deformed can be easily bent and deformed by attaching the first circuit board 38 having rigidity so as to cover the lower surface side. It is prevented and has a sufficiently large mechanical strength.
[0052]
On the bottom surface side of the first circuit board 38 attached to the frame body 22, as shown in FIG. 7, a battery storage unit is provided in which a secondary battery 68 that supplies power for driving the disc player is stored. A battery holding frame 41 is attached. As shown in FIG. 7, the battery holding frame 41 is formed by bending a metal plate into a U shape, and an attachment arm 42 is extended from one end side. A fixing piece 43 having a screw insertion hole 43a is provided on the distal end side of the mounting arm. The battery holding member 41 has an opening end side at one end facing one side of the first circuit board 38, an upper edge abutting against the first circuit board 48, and a screw insertion hole 43 a of the fixing piece 43. The first circuit board 38 is fixed by a fixing screw inserted through the first circuit board 38.
[0053]
On one end side of the battery holding frame 41, a guide member 67b having a battery insertion port 67a for guiding insertion of the secondary battery 68 inserted into the battery holding frame 41 is disposed. The guide member 67b is made of synthetic resin, and is fixed to the bottom surface side of the first circuit board 38 with a fixing screw.
[0054]
Although not shown, the terminal of the secondary battery 68 inserted into the battery holding frame 41 is electrically connected to the first circuit board 38 so as to face the battery holding frame 41 attached to the circuit board 38. A terminal board that contacts is attached. This terminal board is electrically connected to a power supply circuit configured on the first circuit board 38.
[0055]
As described above, the battery holding frame 41 and the guide member 67b attached to the bottom surface side of the first circuit board 38 have the first circuit board 38 attached to the frame body 22 and are placed in the lower half 62 together with the frame body 22. As shown in FIGS. 5, 6, and 7, when stored, the battery is disposed in a battery storage portion 66 formed so as to bulge downward on the plane side of the lower half 62. At this time, the guide member 67 b is fitted into the battery insertion / removal port 66 a formed on the side surface of the lower half 62.
[0056]
A battery lid 67 that opens and closes the battery insertion / removal port 66a with a base end supported on one side of the battery insertion port 67a of the guide member 67b is rotatably attached. The secondary battery 68 inserted into the battery holding frame 41 via the battery insertion port 67a is prevented from falling off from the battery housing portion 66 when the battery lid 67 closes the battery insertion port 67a, and the inside of the lower half 62 Retained.
[0057]
Here, the rechargeable battery 68 used is a rechargeable Ni-Cd battery, a lithium ion battery, or the like, and is formed in a long rectangular parallelepiped shape as shown in FIG.
[0058]
In addition, the battery housing portion 66 formed so as to bulge to the bottom surface side of the lower half 62 raises the back side when the disc player is grounded to a grounding surface such as a desk, and the surface of the upper half 44 is inclined. It becomes the support part which supports so as to.
[0059]
As described above, the base plate 1 on which the disk reproducing unit is provided is attached to the frame 22 to which the first circuit board 38 is attached on the bottom surface side so as to be positioned on the first circuit board 38. The base plate 1 is substantially the same as the planar shape of the reproduction-only disk cartridge 202 shown in FIGS. 1 and 2 or the recording / reproducing disk cartridge 222 shown in FIGS. It is formed in a flat rectangular shape having a size. The base plate 1 is made of magnesium die casting that is lightweight and has sufficient mechanical strength.
[0060]
As shown in FIG. 13, the base plate 1 is attached so as to be planted on support pieces 102 and 103 that protrude from the one side wall 22 c and the back wall 22 d of the frame body 22 toward the inside of the frame body 22. Four supported by a support shaft (not shown) and attached to projecting pieces 90a, 100a, and 101a projecting inward from the support piece 102 and the side walls 22b and 22c and the back wall 22d toward the inside of the frame. The lower surface side is supported by the dampers 80, 90, 100 and 101. The base plate 1 can be displaced in the axial direction of the support shaft within a range in which the dampers 80, 90, 100, 101 can be displaced.
[0061]
On the upper surface side of the base plate 1 supported by the frame body 22, a holder 16 is provided for inserting and holding the disc cartridge 202 or 222 mounted on the disc player. As shown in FIG. 7, the holder 16 is proximal to a pair of support shafts 9, 10 projecting on opposite surfaces of support pieces 9 a, 10 a formed on both sides on the back side of the base plate 1. By pivotally supporting pivot holes 17 drilled on both sides of the base plate 1, the pivot shafts 9 and 10 are supported so as to be pivotable in the direction of approaching and separating from the base plate 1. The holder 16 is related to the upper half 44 so that the holder 16 can rotate in conjunction with the upper half 44 when rotated about the support shafts 9 and 10.
[0062]
As shown in FIGS. 14 and 15, engagement pieces (not shown) provided on both sides of the front end side of the holder 16 are engaged with the front ends of the rotating arms 24 and 26 to which the upper half 44 is attached. Joint pieces 121 and 124 are provided. When the upper half 44 is rotated in the direction of the arrow C in FIG. 6 where the upper half 44 is separated from the lower half 62 around the support shafts 23 and 25 integrally with the rotating arms 24 and 26, the engaged piece is engaged. By being engaged with the joining pieces 121, 124, it is rotated together with the upper half 44. At this time, the holder 16 is rotated in the direction of arrow C in FIG. 6 within a range of 18 ° to 22 ° with respect to the base plate 1 supported by the frame body 22 disposed in the lower half 62.
[0063]
When the holder 16 is rotated in the direction of arrow E in FIG. 6 where the upper half 44 closes the opened upper surface side of the lower half 62, the engagement of the engaged pieces with the engaging pieces 121 and 124 is released. Then, when the upper half 44 is rotated to a position where the upper surface side of the lower half 62 opened is closed, the upper half 44 is placed on the base plate 1.
[0064]
As shown in FIG. 14, a lid detection switch that detects the completion of the lid closing of the upper half 44 provided on the first circuit board 38 is located at the substantially central portion of one side wall 22 c of the frame body 22. An operating lever 112 for pressing is provided. The operation lever 112 is rotatably supported via a support shaft 118 planted on the side wall 22c, and is urged to rotate in the direction of arrow F in FIG. 14 by a torsion coil spring 113 attached to the side wall 22c. The rotation position is regulated by the rotation regulation pin 112a. The operation lever 112 is rotated to a position where the upper half 44 closes the opened upper surface side of the lower half 62, and the pressed portion 115 on one end side is pressed by the rotating arm 24 to which the upper half 44 is attached. 14 is rotated in the direction opposite to the arrow F in FIG. 14 against the urging force of the torsion coil spring 113, and the switch operation unit 116 on the other end side presses the lid detection switch provided on the first circuit board 38. The lid detection switch is connected to a control circuit, which will be described later, provided on the first circuit board 38.
[0065]
Further, as shown in FIG. 18, protrusions 108, 109, and 110 are bulged and formed on the front wall 22 a side of the left and right side walls 22 b and 22 c of the frame body 22 as shown in FIG. . These protrusions 108, 109, 110 support the side surface on the tip side where the engagement pieces 121, 124 are provided when the rotating arms 24, 26 are rotated toward the lower half 62, and are located in the lower half 62. Guide to enter smoothly.
[0066]
As shown in FIG. 7, a second circuit board 53 using a flexible printed circuit board having flexibility is attached to the inner surface side of the upper half 44. The second circuit board 53 is affixed to a shield plate 51 attached to the inner surface side of the upper half 44 by screws, and is supported while being sandwiched between the shield plate 51 and the upper half 44. The shield plate 51 is connected to the ground potential portion of the second circuit board 53. On the shield plate 51, as shown in FIG. 19, a liquid crystal display (LCD) panel 52 electrically connected to the second circuit board 53 is attached. As shown in FIGS. 5 and 6, the LCD panel 52 faces the display surface on the outer side of the upper half 44 through an opening 45 provided in the upper half 44. The LCD panel 52 displays various information related to the operation of the disc player.
[0067]
On the second circuit board 53, as shown in FIG. 7, a plurality of diaphragm switches 56, 57, 58, 59, 60, 61 are provided. These diaphragm switches 56, 57, 58, 59, 60, 61 are provided with a plurality of operation buttons 46, 47, 48, 49, 50 provided on the upper surface side of the upper half 44, as shown in FIGS. A pressing operation is performed by the protrusions 74, 75, 76, 77, 78, and 79 protruding from the back side. These operation buttons 46, 47, 48, 49, and 50 function as a volume adjustment button, a play mode start button, a stop button, a forward skip button, a backward skip button, and the like.
[0068]
Then, on the first circuit board 38, the rechargeable secondary battery 68 accommodated in the battery accommodating portion 66 provided in the lower half 62 or the battery holder attached to the back wall side of the lower half 62 is accommodated. In addition, a control circuit and an audio circuit that are driven by power supplied from the AA primary battery are provided. A second circuit board 53 is connected to the control circuit. Then, this control circuit provides a disk reproducing unit incorporated in the base plate 1 as will be described later in accordance with an input signal input by operating each of the diaphragm switches 56, 57, 58, 59, 60, 61. Drive control. The audio circuit outputs an information signal, which is a digital signal read from the disk cartridge 202 or 222, to the jack unit 39 as an audio signal converted into an analog signal based on the control of the control circuit. The audio signal is supplied to an earphone or a headphone connected to the jack unit 39, and is heard as sound by driving the earphone or the headphone.
[0069]
The jack portion 39 is mounted on the first circuit board 38 as shown in FIG. The jack portion 39 is inserted at the front end side into a notch 31 formed in the front wall 22a of the frame 22 to which the first circuit board 38 is attached, as shown in FIG. 16, and as shown in FIG. It faces the opening 34 formed in the front wall 32a of the band-shaped member 32 that is overlapped with the front wall 22a of the frame 22.
[0070]
The jack portion 39 is provided with a connector 39a to which a connection plug of the remote control device is connected in parallel. This connector 39a is also exposed to the outside of the casing 151 through a notch hole 31 formed in the front wall 22a of the frame body 22 and an opening 34 formed in the front wall 32a of the band-shaped member 32. .
[0071]
By the way, as shown in FIG. 12, the portion where the opening 34 of the front wall 22a of the band-shaped member 32 is formed and the portion where the slide knob 33 for operating the lock lever 130 is disposed are directed downward. Protruding portions 34a and 33a are formed. These protrusions 34a and 33a are concave fittings formed on the upper edge side of the front wall 22a of the frame 22 as shown in FIG. 10 when the band-shaped member 32 is disposed over the outer periphery of the frame 22. The recesses 64 and 65 are respectively fitted as shown in FIG.
[0072]
Further, on the front wall 62a side of the lower half 62, there is provided a hold knob 63 for operating a hold switch 63a for holding a once selected operation mode or operation state. The hold knob 63 is attached to the operation element 63b of the hold switch 63a mounted on the first circuit board 38 and is slid along the front surface of the lower half 62 to switch the hold switch 63a. The operating element 63b of the hold switch 63a protrudes to the front side of the lower half 62 through a recess formed on the lower side edge side of the front wall 32a of the frame 32 and the front wall 22a of the band-shaped member 32.
[0073]
Further, on the back wall 62b side of the lower half 62, as shown in FIG. 8, through holes 132, 132 are provided for allowing connection terminals provided on the first circuit board 38 to face outward. ing. A screw hole 134 for fixing a battery holder containing an AA primary battery attached to the back wall 62b of the lower half 62 is provided at an intermediate position between the through holes 132 and 132.
[0074]
In the battery holder, an anode terminal and a cathode terminal projecting from the surface of the lower half 62 that abuts against the back wall 62b are inserted into the through holes 132 and 132 and brought into contact with the connection terminals, and mounting screws provided on the holder are provided. Are attached to the lower half 62 by screwing them into the screw holes 134.
[0075]
Further, as shown in FIG. 22, a conductive plate 138 that is a grounding member is electrically connected to the shield plate 51 that supports the second circuit board 53 disposed on the inner surface side of the upper half 44. It is attached in a state. The conductive plate 138 is formed of a conductive metal plate and is disposed along one side of the upper half 44. As shown in FIG. 23, the conductive plate 138 is provided with an engaging claw 137 that engages with an engaging hole 136 formed in the shield plate 51. The conductive plate 138 is affixed to the lower surface side of the shield plate 51 using an adhesive or the like with the engagement claw 137 engaged with the engagement hole 136.
[0076]
The conductive plate 138 is provided with a spring portion 139 that presses the holder 16 disposed on the lower surface side of the upper half 44. The conductive plate 138 is electrically connected to the holder 16 by the spring portion 139 being pressed against the upper surface side of the holder 16 as shown in FIG. That is, in this disc player, as shown in FIG. 24, the LCD panel 52 disposed on the upper half 44 side is made of a conductive plate 138, a holder 16 made of a conductive metal material, and a conductive metal material. It is electrically connected to the ground potential portion of the first circuit board 38 through the formed frame body 22. The ground potential portion of the first circuit board 38 is connected to a connection terminal that is a ground potential portion that contacts the cathode terminal of the secondary battery 68 provided in the battery housing portion. The conductive plate 138 urges the upper half 44 in a direction of separating from the opened upper surface side of the lower half 62 by the urging force of the spring portion 139.
[0077]
Further, as shown in FIG. 23, the conductive plate 138 is formed with pressing springs 54 and 55 that press the disk cartridges 202 and 222 held by the holder 16 toward the base plate 1 disposed in the lower half 62. Has been.
[0078]
As shown in FIG. 21, the disk cartridges 202 and 222 held by the holder 16 are located on the other side opposite to the side on which the conductive plate 138 on the inner surface side facing the lower half 62 of the upper half 44 is disposed. A pressing spring 72 that presses the base plate 1 toward the base plate 1 is attached via a screw 73. On both ends of the pressing spring 72, pressing portions 69 and 70 for pressing and supporting the disk cartridges 202 and 222 are integrally provided.
[0079]
The disk cartridges 202 and 222 held by the holder 16 are supported by the cartridge mounting portion formed on the base plate 1 by pressing each corner portion by the pressing portions 69 and 70 of the pressing springs 54 and 55 and the pressing spring 72. The
[0080]
The pressing spring 72 is provided with a pressing portion 71 that is pressed against the holder 16. The pressing spring 72 biases the upper half 44 toward the lower half 62 by the biasing force of the pressing portion 71.
[0081]
As described above, on the upper surface side of the base plate 1 attached to the frame body 22 and housed in the lower half 62 constituting the apparatus main body together with the frame body 22, disk cartridges 202 and 222 serving as recording media of the disk player are provided. A disc cartridge mounting portion 1a to be mounted is configured, and an optical signal such as an audio signal recorded on the optical disc 201 or 221 is reproduced by rotating the optical disc 201 or 221 stored in the disc cartridge 202 or 222. Incorporates a disk playback unit to perform.
[0082]
That is, the base plate 1 constitutes a player main body together with the frame body 62 by being mounted on the frame body 62 in which the disc reproducing unit is incorporated and disposed in the lower half 62.
[0083]
The disc reproducing unit incorporated in the base plate 1 will be described in more detail.
[0084]
As shown in FIG. 7, a spindle motor 2 is attached to the lower surface of the substantially central portion of the base plate 1 with the drive shaft facing upward. The spindle motor 2 has a drive shaft 2a protruding above the base plate 1 through a through hole provided in a substantially central portion of the base plate 1. A disk table 3 is attached to the drive shaft 2 a of the spindle motor 2. The disk table 3 is formed in a substantially disk shape with a material such as a synthetic resin, and a center hole formed in the center of the optical disk 201 or the magneto-optical disk 221 is engaged with the upper surface side, so that the optical disk 201 or the magneto-optical disk 221 is A centering portion 4 is formed for centering and mounting the disc table 3. The disk table 3 is provided with a magnet for magnetically attracting the metal hub 207 on the upper end side of the centering portion 4. When the central portion of the optical disk 201 or the magneto-optical disk 221 is placed, the disk table 3 is positioned and held by engaging the center hole with the centering portion 4 and magnetically attracting the hub 207 with a magnet. To do. At this time, the center of the center hole of the optical disc 201 or the magneto-optical disc 221 coincides with the central axis of the drive shaft 2 a of the spindle motor 2. The optical disk 201 or the magneto-optical disk 221 is rotationally driven integrally with the disk table 3 when the spindle motor 2 is driven.
[0085]
Further, an optical pickup device 11 is attached to the base plate 1. The optical pickup device 11 has an optical block unit, and in this optical block unit, a laser diode serving as a light source, a light receiving element such as a phototransistor, and various optical units that guide the light beam emitted from the laser diode to the objective lens 12. The device is built-in. Configured. The optical pickup device 11 converges and irradiates the signal recording layer of the optical disk 201 or the magneto-optical disk 221 on the disk table 3 through the light beam objective lens 12 emitted from the laser diode. Further, the optical pickup device 11 makes the return light of the light beam reflected from the optical disc 201 or the magneto-optical disc 221 incident into the optical block through the objective lens 12 and the optical device, and is detected by the light receiving element. Alternatively, an information signal such as an audio signal recorded on the magneto-optical disk 221 is read.
[0086]
As shown in FIG. 7, the optical pickup device 11 is located on the side of the spindle motor 2 and supported by a guide shaft 13 and a guide piece 14 provided on the base plate 1, and these guide shaft 13 and guide piece 14. The optical disk 201 on the disk table 3 or the magneto-optical disk 221 is moved and operated in the radial direction. The feeding operation of the optical pickup device 11 is performed by a pickup feeding motor 5 attached to the lower surface side of the base plate 1.
[0087]
Note that. The optical pickup device 11 is located on the lower surface side of the base plate 1, and the objective lens 12 faces the upper side of the base plate 1 through an opening 11 a provided in the base plate 1, so that the optical disk 201 on the disk table 3 is placed. Alternatively, it faces the magneto-optical disk 221. In other words, the optical pickup device 11 is operated to move in the radial direction of the optical disk 201 or the magneto-optical disk 221 held and rotated by the disk table 3, so that signal recording on the optical disk 201 or the magneto-optical disk 221 is performed by the light beam. The information signal is read by manipulating the surface.
[0088]
The cartridge mounting portion 1 a configured on the upper surface side of the base plate 1 is engaged with the positioning holes 211 and 212 of the disk cartridge 202 or 222 mounted on the cartridge mounting portion 1 a to A pair of positioning pins 6 and 7 for positioning the mounting position in the horizontal direction are planted. The cartridge mounting portion is formed with a pair of height positioning projections for positioning a height that supports the side of the disk cartridge 202 or 222 facing the side where the positioning holes 211 and 212 are provided.
[0089]
The disk cartridge 202 or 222 mounted on the cartridge mounting unit 1a is supported by the positioning pins 6 and 7 and the height positioning protrusion, thereby achieving positioning in the horizontal direction and the height direction. At this time, the optical disk 201 or the magneto-optical disk 221 housed in the disk cartridge 202 or 222 is also positioned and held on the disk table 3 and can be rotated without contacting the inner wall of the cartridge main body 205.
[0090]
When the disk cartridge 202 or 222 is mounted on the cartridge mounting portion 1a, the cartridge mounting detection switch provided on the base plate 1 is pressed by the cartridge body 205, and the disk cartridge 202 or 222 is mounted on the cartridge mounting portion 1a. In addition, the state of each identification hole 224 is detected by an identification switch provided on the base plate 1, and the type of the mounted disk cartridge 202, 222 is identified. The cartridge mounting detection switch and the identification switch are connected to a control circuit configured on the first circuit board 38.
[0091]
The holder 16 that is supported by the rotating arms 24 and 26 that are rotatably supported by the base plate 1 and to which the upper half 44 serving as a lid that opens and closes the upper surface side of the lower half 62 will be described in more detail.
[0092]
  The holder 16 is formed by bending a metal plate. As shown in FIGS. 6 and 7, the disk cartridge 202 or 222 is inserted from the front side, and the inserted disk cartridge 202 or 222 can be held. A top plate, left and right side walls hanging downward from both sides of the top plate, and support pieces 18 and 19 bent inward from the lower edge of each side wall..
[0093]
The disk cartridge 202 or 222 is inserted into the holder 16 via the front cartridge insertion / removal port 16 a and is inserted into the top plate and the side walls. The support pieces 18 and 19 support both sides of the lower surface side. Retained. At this time, the disk cartridge 202 or 222 has a substantially entire lower surface facing downward, and the central opening 206, the openings 208 and 228, the positioning holes 211 and 212, and the disk identification hole 213 are positioned below the holder 16. It faces the side.
[0094]
A shutter opening operation piece projects from the middle of one side wall of the holder 16 toward the inner side. When the disk cartridge 202 or 222 is inserted into the holder 16, the shutter opening operation piece enters the slide guide groove 210 and abuts against one side of the shutter 209 or 230, and the disk cartridge 202 or 222 contacts the holder 16. When being inserted, the shutter 209 or 230 is moved relative to the cartridge main body 205 to open the openings 208 and 228. Further, as shown in FIG. 7, a shutter closing member 20 is disposed on the front end side of one side wall of the holder 16 so as to bulge inward of the holder 16. When the disc cartridge 202 or 222 is inserted into the holder 16, the shutter closing member 20 engages with a part of the shutter 209 or 230 and holds the shutter 209 or 230 in a position where the openings 208 and 228 are opened. When the disk cartridge 202 or 222 is ejected from the holder 16, the disk cartridge 202 or 222 is moved relative to the cartridge main body 205, and the shutter 209 or 230 is moved to a position where the openings 208 and 228 are closed.
[0095]
When the upper half 44 is attached and the holder 16 that rotates together with the upper half 44 is rotated in the direction of the arrow C in FIG. 6 in the direction away from the lower half 62, the front side cartridge insertion / removal port 16 a is moved to the upper half 44. And the lower half 62. In this state, when the disc cartridge 202 or 222 is inserted into the holder 16 through the cartridge insertion / removal port 16a and the holder 16 is rotated together with the upper half 44 in the direction of arrow E in FIG. The disc cartridge 202 or 222 is positioned and mounted on the cartridge mounting portion 1 a formed on the base plate 1. The disk cartridge 202 or 222 mounted on the cartridge mounting portion 1a is pressed and supported on the base plate 1 side by the pressing springs 54 and 55 mounted on the inner surface side of the upper half 44 and the pressing portions 69 and 70 of the pressing spring 72. .
[0096]
Then, the holder 16 is held on the upper surface side of the base plate 1 constituting the cartridge mounting portion 1a when the holder 16 is rotated in the direction of arrow C in FIG. 6 in a direction away from the base plate 1 side. An eject lever 8 for ejecting the disk cartridge 202 or 222 is provided. As shown in FIG. 7, the eject lever 8 is pivotally supported by a support shaft planted on the base plate 1 on the base end side, and is supported rotatably about the support shaft. The side is biased to rotate in a direction protruding inward of the holder 16.
[0097]
When the disc cartridge 202 or 222 is inserted into the holder 16, the eject lever 8 is pressed against the disc cartridge 202 or 222 and rotated against the urging force of the spring. At this time, the eject lever 8 is held in a position where it is engaged with an engaging portion provided on the back side of the base plate 1 and is released to the outside of the cartridge mounting portion 1a.
[0098]
When the holder 16 holding the disk cartridge 202 or 222 is rotated in the direction of arrow C in FIG. 6, which is separated from the base plate 1, the eject lever 8 is disengaged from the base plate 1 and the spring biasing force is applied. In response to the rotation, the cartridge is rotated into the cartridge mounting portion 1 a to press the disk cartridge 202 or 222 so as to protrude outward from the holder 16.
[0099]
By the way, as shown in FIGS. 5, 6 and 7, the disc player configured as described above is provided with a battery housing portion 66 so that the lower surface of the lower case 62 bulges out. Therefore, when the lower case 62 is placed on a predetermined placement portion P such as a desk as shown in FIG. 25 with the lower surface side of the lower case 62 as the ground surface, the upper surface of the upper case 44 is inclined from the back side toward the front side. In this state, the display surface of the LCD panel 52 provided on the upper case 44 can be directed to the operator side, the display on the display surface can be easily viewed, and a plurality of operation buttons provided on the upper surface side. 46, 47, 48, 49, and 50 can be easily performed.
[0100]
Next, a series of operations of the disc player to which the present invention is applied will be described.
[0101]
In this disc player, when the disc cartridge 202 or 222 is not inserted in the holder 16, the cartridge mounting detection switch provided on the base plate 1 is not pressed, so that the first circuit board 38 is not pressed. The control circuit provided in FIG. 1 does not drive the disc reproducing section even if each of the operation buttons 46, 47, 48, 49, 50 is operated. At this time, the eject lever 8 is rotated into the cartridge mounting portion 1a under the biasing force of the spring.
[0102]
When the power is turned on, the control circuit provided on the first circuit board 38 determines whether or not each of the operation buttons 46, 47, 48, 49, and 50 has been operated. When the operation buttons 46, 47, 48, 49, 50 are operated, the control circuit determines whether the cartridge mounting detection switch is operated, and detects that the cartridge mounting detection switch is operated. Then, it is determined that the disk cartridge 202 or 222 is mounted in the cartridge mounting portion 1a. Next, whether or not the upper half 44 is rotated to the lower half 62 side and the upper surface side of the lower half 62 is closed. Is determined. Here, when the control circuit detects that the upper half 44 is closing the lower half 62, the control circuit drives the disk reproducing unit in accordance with the operation of each operation button 46, 47, 48, 49, 50, and the drive. To control.
[0103]
In order to mount the disc cartridge 202 or 222 on this disc player, the upper half 44 is rotated in the direction of arrow C in FIG. 6 and the holder 16 is rotated away from the lower half 62. In this state, the disk cartridges 220 and 221 are inserted into the holder 16 from the front side with respect to the disk cartridge 202 or 222 through the cartridge insertion / removal port 16a. When the disk cartridge 202 or 222 is inserted into the holder 16, the upper half 44 is rotated together with the holder 16 toward the lower half 62 in the direction of arrow E in FIG. 6 to close the upper surface side of the lower half 62. Alternatively, 222 is positioned and mounted on the cartridge mounting portion 1a on the base number 1. At this time, the cartridge mounting detection switch is pressed by the disk cartridge 202 or 222, and it is detected that the disk cartridge 202 or 222 is mounted in the cartridge mounting portion 1a, and the control circuit detects each operation button 46, 47, 48, 49, The operation by 50 is allowed, and the disk reproducing unit can be driven. Here, by driving the disk reproducing unit, information signals such as audio signals recorded on the optical disks 201 and 221 accommodated in the disk cartridge 202 or 222 are reproduced.
[0104]
To eject the disc cartridge 202 or 222 after the reproduction of the desired information signal is completed, the upper half 44 is rotated in the direction of arrow C in FIG. Separate. When the holder 16 is rotated in the direction away from the cartridge mounting portion 1a in the direction of arrow C in FIG. 6, the engagement of the eject lever 8 with the base plate 1 is released, and the eject lever 8 receives the biasing force of the spring. The disk cartridge 202 or 222 held on the holder 16 is rotated toward the cartridge mounting portion 1 a side, and the disk cartridge 202 or 222 is pushed out toward the cartridge insertion / removal port 16 a, so that a part of the disk cartridge 202 or 222 protrudes from the holder 16. The disk cartridge 202 or 222 is taken out from the holder 16 by gripping and pulling out the portion protruding from the holder 16.
[0105]
In the above description, the present invention has been described with reference to an example in which the present invention is provided to a disk player that uses the disk cartridge 202 or 222 as a recording medium. The present invention can be applied to electronic devices such as a record player, a video tape recorder, and a video camera that use a magnetic tape as a recording medium, and can obtain the same advantages as those of the disk player described above.
[0106]
Furthermore, the present invention can be applied to electronic devices that are carried around and used, such as radio receivers, and can obtain the same advantages as described above.
[0107]
【The invention's effect】
As described above, in the recording medium recording and / or reproducing apparatus according to the present invention, the first circuit having the ground potential part and the second circuit board to which the circuit board is connected are connected to the ground potential part. Since the shield provided with the shield member is electrically shielded, the shield member is connected to a conductive plate, which is a grounding member that is set to the ground potential, so that the ground member is always grounded. As a result, static electricity is prevented from being charged to the apparatus body.
[Brief description of the drawings]
FIG. 1 is a perspective view of a read-only disc cartridge used in a disc player to which the present invention is applied, as viewed from the upper surface side.
FIG. 2 is a perspective view of the disk cartridge as viewed from the lower surface side.
FIG. 3 is a perspective view of a recording / reproducing disk cartridge used in a disk player to which the present invention is applied, as viewed from the upper surface side.
FIG. 4 is a perspective view of the disk cartridge as viewed from the lower surface side.
FIG. 5 is a perspective view showing a disc player as an electronic apparatus to which the present invention is applied.
FIG. 6 is a perspective view of a disc player showing a state where a disc cartridge and a secondary battery are inserted and removed.
FIG. 7 is an exploded perspective view of a disc player according to the present invention.
FIG. 8 is a rear view of a lower half constituting the apparatus main body.
FIG. 9 is a plan view showing the inside of the lower half.
FIG. 10 is a front view of the lower half.
FIG. 11 is a plan view of a band-shaped member constituting the apparatus main body.
FIG. 12 is a front view of a band-shaped member.
FIG. 13 is a plan view of a frame constituting the apparatus main body.
FIG. 14 is a right side view showing a state in which a rotating arm is attached to a frame body.
FIG. 15 is a left side view illustrating a state in which a rotating arm is attached to a frame body.
FIG. 16 is a front view of a frame.
FIG. 17 is a cross-sectional view showing a state in which a lower half, a strip-shaped member, and an upper half are butted together to form a housing.
FIG. 18 is a plan view of the main part showing the relationship between the frame and the rotation lever.
FIG. 19 is a plan view showing a shield plate for supporting the LCD panel.
FIG. 20 is a plan view of the upper half.
FIG. 21 is a bottom view showing the inside of the upper half.
FIG. 22 is a longitudinal sectional view showing a state in which a shield plate, a ground metal plate and a disk cartridge are grounded.
FIG. 23 is a plan view showing a conductive plate attached to a shield plate.
FIG. 24 is a block diagram showing a grounding structure of a disc player.
FIG. 25 is a perspective view showing a state in which the disc player according to the present invention is placed on the installation unit.
[Explanation of symbols]
16 Holder, 22 Frame, 24, 26 Rotating arm, 32 Band-shaped member, 38 First circuit board, 44 Upper half, 51 Shield plate 52 LCD panel, 53 Second circuit board, 62 Lower half, 66 Battery Storage part, 68 Secondary battery, 138 Conductive plate.

Claims (5)

A frame formed of a metal plate, provided with a recording and / or reproducing unit, and provided with at least one rotating arm;
A first circuit board having a ground potential portion and attached to the frame;
A second circuit board connected with the first circuit board, a lid that is provided rotatably on the recording and / or reproducing unit mounted on the rotating arm,
A shield member attached to the lid so as to sandwich the second circuit board with the lid;
Formed of a metal material, a recording medium by the rotating arm to rotate by the rotation operation of the cover body and a position away from the position and the recording and / or reproducing unit to be mounted on the recording and / or reproducing unit A holder that moves between,
An engagement portion that is formed of a metal plate and has an engagement portion that engages with the shield member and an abutment portion that contacts the holder, is connected to the shield member, and separates the lid from the holder at the contact portion . A grounding member that biases in the direction ,
The recording member is a recording and / or reproducing apparatus for a recording medium, wherein the shield member is electrically connected to the ground potential portion of the first circuit board via the ground member, the holder, and the frame . The recording medium recording and / or reproducing apparatus according to claim 1, wherein the grounding member includes a pressing unit that presses the recording medium toward the recording and / or reproducing unit. The lid is provided with a window and at least one operation button, and the second circuit board has at least one switch operated by the operation button and a display element at a position facing the window. The recording medium recording and / or reproducing apparatus according to claim 1, wherein The frame body has a base on which the recording and / or reproducing unit is configured attached to the inside, a band-shaped member attached to the outside, and the whole is housed in half.
The band-shaped member is positioned between the lid and the half with the lid closed with respect to the half.
A recording medium recording and / or reproducing apparatus according to claim 1 . The recording and / or reproducing apparatus for a recording medium according to claim 4 , wherein the frame is provided with a lock portion that locks the lid in a closed position with respect to the apparatus main body.

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