JP3493740B2 - Playback device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reproducing device for reproducing an information signal by using a recording medium such as a tape cassette or a disc cartridge.

[0002]

2. Description of the Related Art Conventionally, there has been proposed a reproducing apparatus configured to reproduce an information signal such as an audio signal or a video signal by using a recording medium such as a tape cassette or a disk cartridge.

The tape cassette is constructed by rotatably storing a pair of tape reels around which a recording tape such as a magnetic tape is wound. Further, the disc cartridge is configured such that a recording disc such as a magnetic disc, an optical disc, or a magneto-optical disc is rotatably accommodated in the cartridge.

Then, the reproducing apparatus is configured to have a recording medium mounting portion in which the recording medium is mounted, that is, a tape cassette mounting portion or a disc cartridge mounting portion.

In the tape cassette mounting portion, a reel shaft engaging with the pair of tape reels, a capstan shaft for feeding and operating the magnetic tape and a pinch roller, and writing an information signal to the magnetic tape. And a magnetic head for reading.

The disk cartridge mounting portion holds a chucking portion at the central portion of the recording disk to rotate and operate the recording disk, and a magnetic head for writing and reading information signals to and from the recording disk. And an optical pickup device.

In this reproducing apparatus, the information signal is reproduced by mounting the recording medium on the recording medium mounting portion.

That is, when the recording medium is the tape cassette, the tape reel is rotated by the reel shaft, and the magnetic tape is fed by the capstan shaft and the pinch roller to operate the magnetic tape. The information signal is reproduced via the head device. When the recording medium is the disc cartridge, the recording disc is rotated by the disc table to reproduce the information signal via the magnetic head device or the optical pickup device.

Then, in such a reproducing apparatus,
It has been proposed that the tape cassette or the disc cartridge has an outer casing of a size substantially corresponding to the size of the disc cartridge, is small in size, and is suitable for carrying.

[0010]

By the way, in the reproducing apparatus as described above, when the recording medium is mounted in the recording medium mounting portion, the back surface portion of the lid body which opens and closes the recording medium mounting portion. It is inserted into the holder part attached to. At this time, the entire recording medium is stored in the holder portion.

The recording medium is mounted in the recording medium mounting portion when the lid is closed. Further, in this reproducing apparatus, the recording medium is removed from the recording medium mounting portion by opening the lid.

Therefore, in this reproducing apparatus, if the lid is opened during the recording / reproducing mode, the recording medium and the magnetic head device or the optical pickup device may be damaged. is there.
Therefore, this reproducing apparatus has a lock mechanism that holds the lid body in the closed state so that the lid body is not opened accidentally.

However, the locking mechanism only prevents the lid body from being opened, and does not firmly fix the lid body to the main body side where the recording medium mounting portion is provided. It is not possible to prevent even the movement of the lid body with respect to the main body portion due to an impact.

When the lid moves with respect to the main body due to vibration or shock, a noise is generated between the lid and the main body, and a recording / reproduction signal is generated due to movement of the recording medium in the recording medium mounting portion. There is a risk of deterioration.

Providing a member for firmly fixing the lid body complicates the structure of the reproducing apparatus, and the member for preventing the movement of the lid body needs to be sufficiently robust. Therefore, miniaturization becomes difficult.

Therefore, the present invention has been proposed in view of the above circumstances, and the main body of the lid body that supports the recording medium through the holder portion does not complicate the structure and increase the size thereof. It is an object of the present invention to provide a reproducing device in which movement of a part is prevented and generation of abnormal noise and deterioration of a recording / reproducing signal are prevented.

[0017]

In order to solve the above problems and achieve the above objects, a reproducing apparatus according to the present invention comprises a main body section having a chassis provided with a recording medium mounting section for mounting a recording medium. A lid body that is rotatably supported by the main body portion and that opens and closes the recording medium mounting portion; and a claw that is slidably disposed on the main body portion and that engages with an engaging portion provided on the lid body. Lock slider for holding the lid body in a closed state by elastically urging the claw portion in the engaging direction to engage the engaging portion with the claw portion engaging the engaging portion. And a first slit formed on one end side of the lock slider along the engagement direction, and an inclined portion formed on the other end side of the lock slider and inclined with respect to the engagement direction. A pair of second slits provided on the main body A pair of slits engaged with and supported by the holding pin; and the lock slider is slid in the engaging direction by the first and second slits being engaged with and supported by the pair of supporting pins. At the same time, the support pin that engages and supports the first slit is rotated in a direction inclined in the lid closing direction of the lid body by the inclined portion of the second slit, and the lid body is rotated. It is characterized in that it is pressed and supported on the main body side.

[0018]

In the reproducing apparatus according to the present invention, there is a claw part slidably arranged on the main body part and engaged with an engaging part provided on the lid body, and the claw part is provided with the engaging part. The lock slider, which is elastically biased in the engaging direction to hold the lid in the closed state by engaging the claw portion with the engaging portion, has the first and second slits. It is slid in the engagement direction by being engaged and supported by a pair of support pins, and is inclined by the inclined portion of the second slit with the support pin engaging and supporting the first slit as a fulcrum. Rotated in a direction inclined to the lid closing direction of the lid,
Since the lid body is pressed and supported on the body portion side, movement of the lid body with respect to the body portion due to vibration or impact does not occur.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Specific embodiments of the present invention will be described below with reference to the drawings.

In this example, the reproducing apparatus according to the present invention is configured as a tape player apparatus for recording / reproducing information signals by using a tape cassette as a recording medium.

The tape cassette is generally called "compact cassette" (trademark), and as shown in FIG. 5, a cassette 209 having a rectangular main surface portion is provided.
A pair of tape reels 202 and 203 are rotatably housed. A magnetic tape 206 is wound around one of the tape reels 202. The tip end side of the magnetic tape, which is the outer peripheral side of the one tape reel 202, is joined to the other tape reel 203. The portion of the magnetic tape 206 extending between the tape reels 202 and 203 is the cassette 209.
It faces the outside of the cassette 209 through a magnetic head entry hole 207 and a pinch roller entry hole 208 formed in the side surface of the cassette 209.

A pair of reel shaft insertion holes 210, 211 for exposing the central portions of the tape reels 202, 203 to the outside are formed on the main surface of the cassette 209. These reel shaft insertion holes 210 and 211 are
The reel shaft engaging holes 204 and 205 formed in the central portions of the respective tape reels 202 and 203 are provided in the cassette 2
It faces the outside of 09.

The tape player device shown in FIG.
As shown in FIG. 4 to FIG. 4, the outer frame 3 and the housing 7 are included in the outer housing. This outer case is
In order to accommodate the tape cassette 201, the tape cassette 201 has a size substantially corresponding to that of the tape cassette 201.
The front side is open. That is, the outer frame 3 is formed in a frame shape that forms a peripheral portion of the outer casing, and the casing portion 7 is formed as a substantially flat plate-like member that closes the back side portion of the outer casing. ing. The housing 7 is made of a metal plate material.

The front side of the outer casing can be opened and closed by a lid 5 rotatably supported with respect to the outer casing. The lid 5 is formed in a substantially flat plate shape and size substantially corresponding to the main surface portion of the tape cassette 201. That is, the lid body 5 has a rectangular shape. The lid 5 is rotatably supported at a lower edge side portion which is a short side portion, and is rotated so that the upper edge side portion is brought into contact with and separated from the outer casing as indicated by an arrow A in FIG. It is made movable.

A chassis 1 is arranged in the outer casing. This chassis 1 is the tape cassette 201
It has a shape and size corresponding to the main surface portion of and is formed in a flat plate shape by a metal plate material.

A tape cassette mounting portion is formed on the front surface of the chassis 1. The tape cassette 201 is positioned and mounted in the tape cassette mounting portion, and the magnetic tape 206 of the tape cassette 201 is mounted.
Is configured so that recording and reproduction of an information signal with respect to can be performed. That is, as shown in FIG. 2, this tape cassette mounting portion has a positioning pin 15, a capstan shaft 17, a pinch roller, a pair of reel shafts 19, and a magnetic head arranged on the chassis 1. Is configured.

The positioning pin 15 corresponds to the chassis 1
It is planted on the top and fits into and engages with the positioning hole 214 formed in the main surface of the cassette 209. The capstan shaft 17 is erected on the chassis 1 and is rotatably operated at a constant rotation speed by the driving force of a motor arranged on the rear surface of the chassis 1. This capstan shaft 17
Is inside the cassette 209 through the capstan shaft insertion hole 213 formed in the main surface of the cassette 209.
The pinch roller entrance hole 208 enters behind the magnetic tape 206. The pinch roller is rotatably supported, and is operated to come into contact with and separate from the capstan shaft 17, enters the cassette 209 through the pinch roller entrance hole 208, and works together with the capstan shaft 17. The magnetic tape 206 is clamped by working. The magnetic head enters the cassette 209 through the magnetic head entry hole 207 and writes / reads an information signal to / from the magnetic tape 206.

The inner surface of the lid 5, that is, the side facing the chassis 1, has a main plate portion having a shape substantially corresponding to the main surface portion of the tape cassette 201, as will be described later. A cassette holder, which is a holder portion that is supported in a substantially overlapped state, is provided.

In the cassette holder, when the lid 5 is in the open state, the tape cassette 201 is inserted from the short side of the tape cassette mounting portion.
However, as indicated by an arrow C in FIG. 5, the short side portion is inserted with the traveling direction. This cassette holder holds the tape cassette 201, and by closing the lid body 5, the held tape cassette 201 is loaded into the tape cassette mounting portion as shown in FIGS. 18 to 21. Put it on.

On the outer side surface of the housing 7, that is, on the back surface of the outer housing, an operation button 74 serving as an operation unit is provided. The operation button 74 is composed of four buttons, and each button is independently pressed. The operation button 74 is attached to the inner surface side portion of the housing portion 7 and faces the outside through a through hole 90 formed in the housing portion 7.

In this tape player device, the operation button 7 is used.
Playback mode (Pla
y), stop mode (Stop), fast-forward mode (F
F), the rewind mode (Rew) is selectively executed. When each of the operation buttons 74 is pressed, the diaphragm switch on the electronic board 4 arranged on the rear side of the chassis 1 is pressed as shown in FIG.

As shown in FIGS. 3 and 4, the operation button 74 is covered by the slide of the shutter 92 slidably supported by the housing 7, and is exposed to the outside. Has been done.

The shutter plate 92 is made of a metal plate material and is disposed on the outer surface of the outer casing.
The shutter plate 92 is provided on the rear surface of the casing 7.
A concave portion 106 is provided corresponding to the movement locus of the above, and the projection of the shutter plate 92 from the surface portion of the casing portion 7 is suppressed.

A connecting member 95 is attached to the shutter plate 92. The connecting member 95 has a pair of connecting pins 96, 96 and a pair of mounting pins 97, 97. In the connecting member 95, each of the pins 9
6, 96, 97 and 97 are integrally formed with the main body of the connecting member 95 (die casting).
Has been done.

The connecting member 95 allows the mounting pins 97, 97 to be inserted into a pair of mounting holes 94, 94 provided in the shutter plate 92.
The shutter plates 92 are attached by crimping the tips of the reference numerals 7, 97. In fact, the connecting member 95 has the connecting pins 96, 96 inserted through the pair of through holes 93, 93 formed in the shutter plate 92.

The connecting pins 96, 96 are inserted into the outer casing through the through holes 89 formed in the casing 7. The through hole 89 is formed on the inner surface of the casing 7.
Corresponding to, a slide guide plate 76 is attached. The slide guide plate 76 has a pair of slits 80, 80 and a slide guide slit 81 at a position corresponding to the through hole 89. Each of the connecting pins 96,
96 is inserted into each of the slits 80, 80, and is further inserted into the outer housing than the slide guide plate 76.

The slide guide plate 76 supports the operation button 74 at the upper edge side portion. That is, the operation button 74 is supported by the leaf spring 75 on the back side which is the inner side of the casing 7, and the casing is formed by the upper edge side portion of the slide guide plate 76 via the leaf spring 75. The body portion 7 is supported by being restrained on the inner surface side thereof. The leaf spring 75 is formed with through holes 99, 99, 99, 99 corresponding to the respective buttons so that the back surface of the operation button 74 faces the inner side of the outer casing. The upper edge side portion of the slide guide plate 76 has through holes 77, 77, 7
9 and the notch 78 are formed, and these through holes 77, 7 are formed.
The operation button 74 is inserted through the 7, 79 and the cutout portion 78.
The rear surface of the outer casing faces the inner side of the outer casing.

A protrusion for pressing the diaphragm switch is formed on the back surface of each button of the operation button 74. When each of the operation buttons 74 is pressed,
A corresponding diaphragm switch is pressed by the protrusion.

A supporting plate 105 is attached to the tip ends of the connecting pins 96, 96. The support plate 105 is formed of a metal plate material into a flat plate shape and has a pair of mounting holes 87, 87. This support plate 10
5, the connecting pins 96, 96 are inserted into the mounting holes 87, 87, respectively, and the tip ends of the connecting pins 96, 96 are crimped, so that the connecting pins 96, 9 are formed.
It is attached to 6.

The supporting plate 105 is located between the mounting holes 87, 87, and faces the housing 7 side.
A guide pin 88 is provided so as to project. This guide pin 88
Is inserted into the slide guide slit 81 from the inner side of the outer casing.

A guide slit 86 is formed in the support plate 105 in parallel with the slide guide slit 81. Into the guide slit 86, a guide pin 82 protruding from the slide guide plate 76 toward the inner side of the outer casing is inserted and engaged.

The shutter plate 92 is guided by the slide guide slit 81 and the guide slit 86 and slidably supported with respect to the casing 7. The slidable range of the shutter plate 92 is shown in FIG.
4 to the position where the operation button 74 shown in FIG. 4 is exposed to the outside.

The toggle spring 8 is provided between the latch pin 83 projecting from the lower end of the slide guide plate 76 and the latch pin 85 projecting from the lower end of the support plate 105.
4 arm portions are correspondingly hooked. The toggle spring 84 urges the support plate 105 in a direction away from the center position of the slidable range of the support plate 105, that is, the shutter plate 92 is in a direction to cover the operation button 74. The operation button 74 is elastically urged either in a direction in which it faces the outside.

On the shutter plate 92, the connecting member 95 functions as a finger hook when the shutter plate 92 is moved and operated by fingers.

Then, in the peripheral portion of the chassis 1,
The chassis side plate portion 2 is attached. The chassis side plate portion 2 is formed in a substantially frame shape, and is attached to the chassis 1 so as to surround the chassis 1. The outer frame 3 is attached to and supported by the chassis side plate portion 2. In addition, the casing 7 is
It is attached to the chassis side plate portion 2 while being supported by the outer frame 3. Then, the electronic substrate 4 is
It is attached to the back surface of the chassis 1, that is, the surface of the chassis 1 on the housing 7 side. Electronic elements are mounted on the electronic board 4 to form an electronic circuit for executing each operation mode of the tape player device.

As shown in FIGS. 8 and 9, the motor 119 is attached to the rear surface of the chassis 1, and the driving force of the motor 119 is applied to the reel shafts 19 and 20 and the capstan shafts 17. , 18 is provided with a power transmission mechanism including a plurality of gears. Further, an operating plunger and cam gear for selecting each of the above operation modes are provided. This cam gear is
The motor 119 is rotated by the driving force of the motor 119 and is stopped at a rotation angle position corresponding to each operation mode according to the operation of the plunger.

The selection of the operation mode in this tape player device is made according to the rotational angular position of the cam gear. That is, the FR slider 118, which is operated to be moved by the cam gear, is arranged on the rear surface of the chassis 1. This FR slider 118 has a stop mode,
In the fast-forward mode and the rewind mode, the center position is set. And this FR slider 118 is
In the reproduction mode (recording mode), as shown by the arrow T in FIG. 9, the operation is moved to one side in the forward reproduction (forward), and moved to the other side in the reverse reproduction (reverse). Operated.

The FR slider 118 includes a support shaft 115.
A head moving lever 125 is rotatably attached to the chassis 1 via the. The head moving lever 125 is linked to the FR slider 118, and is rotated according to the movement of the FR slider 118. When the head moving lever 125 is rotated, the head moving lever 125 moves the magnetic head 9 through the head holder 10 that supports the magnetic head 9 toward the center of the chassis 1, that is, the tape cassette is mounted. Cassette 209 of the tape cassette 201 attached to the section
Move in the direction of entering. The head holder 10
Is slidably attached to the chassis 1 and is elastically biased in a direction to retract the magnetic head 9 from the cassette 209.

A head hold lever 114 is slidably arranged on the rear surface of the chassis 1. The head hold lever 114 has its tip end side facing the side of the head holder 10 and is slidable in the contacting / separating direction with respect to the head holder 10 as shown by an arrow Q in FIG. The head hold lever 114 is elastically biased by an elastic member such as a spring arranged in the chassis 1 in a direction to bring the tip side closer to the head holder 10, and the tip side moves the head. It is positioned by abutting a contact pin on the lever 125.

At the tip portion of the head hold lever 114, stepped first and second hooking portions 115 and 116 are provided.
Are formed. Then, the head holder 10 has a hooking piece 11 corresponding to each of the hooking portions 115 and 116.
7 is projected.

In the stop mode, the magnetic head 9 is
Is at the stop position where the cassette 209 exits,
At this time, the above-mentioned latching piece 117 has the above-mentioned latching parts 116,
The position is separated from 115. In the reproduction mode (recording mode), when the magnetic head 9 reaches the reproduction position where the magnetic head 9 enters the cassette 209, the head hold lever 114 moves the first hooking portion 116.
Then, the hooking piece 117 is hooked to hold the magnetic head 9 at the reproducing position. This head hold lever 114
The locking of the head holder 10 with respect to the head holder 10 is maintained by the positioning of the head holding lever 114 being released by the rotation of the head moving lever 125 and the forward movement of the head holding lever 114 by the urging force.

Also, once the playback mode has been executed,
Stop mode, fast forward mode and rewind mode, or
When the music selection mode (a mode in which the magnetic tape 206 is fed at a high speed while the information signal is read by the magnetic head 9) is selected, the head moving lever 125 is selected.
Is returned to the initial position, the head hold lever 114 is returned to the initial position. At this time, the hooking piece 117 is hooked on the second hooking portion 115. Therefore, at this time, the magnetic head 9 is set to the standby position which is the position which is retracted from the reproduction position but is advanced from the stop position.

The cassette holder 8 is shown in FIG.
As shown in FIG. 7, FIG. 10 and FIG. 12, a pair of left and right support shafts 34 attached to the lower edge side portion is provided to a pair of left and right support piece portions 26 provided in the lower side portion of the chassis side plate portion 2.
It is rotatably supported by being inserted into the support hole 27 of FIG. As shown in FIG. 22, an angle restriction claw 30 is provided on the support piece 26 so as to project therefrom. The angle restriction claw 30 is formed in the lower portion of the cassette holder 8 so as to have an arc shape around the support shaft 34.
Has been inserted into. The cassette holder 8 has a rotatable range restricted in accordance with an angular range of the angle restriction hole 32 around the support shaft 34. The rotatable angle range of the cassette holder 8 is about 30 °.

The cassette holder 8 has a pair of hold claws 6 bent in a hook shape from the both side portions of the main plate portion toward the chassis side so that the front ends of the cassette holder 8 face inward.
It has 0,61. The cassette holder 8 holds the tape cassette 201 by the hold claws 60 and 61 by inserting the tape cassette between the hold claws 60 and 61.

The hold plate 5 is attached to the hold claw 61 for holding the rear surface portion of the tape cassette 201, that is, the opposite side of the front surface portion facing the magnetic head 9.
8 is attached. The hold plate 58 has a hook-shaped bent portion for holding the tape cassette 201, and is rotatably and slidably attached to the hold claw 61 via a support shaft 59.

When the cassette holder 8 is separated from the chassis 1, the hold plate 58 is separated from the main plate portion of the cassette holder 8 to facilitate the insertion of the tape cassette 201 into the cassette holder 8. None, and when the cassette holder 8 is brought close to the chassis 1, the cassette holder 8 is moved to the main plate side to avoid interference with the chassis 1.

The lid 5 is rotatably supported on the lower portion of the cassette holder 8 through a pair of left and right lid support shafts 35 which are planted in the lower portion of the cassette holder 8. Is rotatably attached to. A claw portion that engages with the cassette holder 8 is provided on an inner edge portion of the lid body 5 to regulate a rotatable angle range of the lid body 5 with respect to the cassette holder 8. The rotatable angular range of the lid 5 with respect to the cassette holder 8 is about several degrees (10 degrees or less).

The main plate portion of the cassette holder 8 has a first
Also, the second leaf springs 51 and 52 are attached. The first leaf spring 51 is attached to the lower side portion of the cassette holder 8 so that the arm-shaped portion projects toward the chassis 1. The second leaf spring 52 is attached to the upper side portion of the cassette holder 8, and the arm-shaped portion 54 is projected toward the chassis 1 side. When the tape cassette 201 held between the hold claws 60 and 61 is mounted on the tape cassette mounting portion, the arm-shaped portions of the leaf springs 51 and 52 are mounted on the chassis. It is pressed and supported on the 1 side.

The second leaf spring 52 has a piece portion 53 projecting toward the lid body 5 side. This piece 53
Biases the lid 5 and the cassette holder 8 away from each other, and when the lid 5 is opened,
The cassette holder 8 is separated from the lid 5.

The lid 5 is urged to rotate with respect to the chassis 1 in the lid opening direction. That is, the fixed arm 66 is attached to the inner portion of the lid body 5. A base end side of the relay arm 65 is rotatably attached to a tip end portion of the fixed arm 66 on a side separated from the lid support shaft 35 via a support shaft 67. One end side of the biasing arm 62 is rotatably attached to the tip end side of the relay arm 65 via a support shaft 68. The biasing arm 62 has a central portion via a support shaft 69,
It is rotatably attached to the chassis side plate portion 2 and has a spring retaining portion 63 on the other end side. And
The tension coil spring 6 is provided between the spring retaining portion 63 and the spring retaining claw 127 provided on the chassis side plate portion 2.
4 is stretched. This tension coil spring 64 is
As shown by an arrow G in FIG. 12, the biasing arm 62 is
One end side of the urging arm 62 is urged to rotate away from the chassis 1, and the lid 5 is urged to rotate in the opening direction as indicated by an arrow F in the portion 12. .

Further, as shown in FIG. 17, the lid 5 is provided with a leaf spring 138 attached to a lower portion of the chassis side plate portion 2 as shown by an arrow K in FIG.
It is biased toward the lid. The leaf springs 138 are separated from each other by the lid 5 when the lid 5 is opened with respect to the chassis 1 at a predetermined angle or more. The lid 5 is urged to rotate in the opening direction.

At the upper end portion of the chassis side plate portion 2, as shown in FIGS. 8, 9, 13 and 17,
A lock mechanism for holding the lid body 5 in the closed state is provided.

The lock mechanism is composed of an eject slider 108, which is an eject member that can be moved, and a lock slider 23, which is a lock member that engages with the lid 5. The eject slider 108
Is the slide support shafts 123, 12 with respect to the chassis 1.
It is attached so as to be slidable in the vertical direction via 4. An upper end portion of the eject slider 108 is bent rearward to form an eject button portion 22. That is, the eject slider 108 is slid downward by pressing the eject button portion 22.

A central portion of a limiter spring 109 is attached to the eject slider 108. The limiter spring 109 has one end side portion engaged with a retaining claw provided on the chassis 1 to move the eject slider 108 upward, that is, the eject button portion 22.
Is urged in the direction of projecting.

The eject button portion 22 is covered with the eject button 73 attached to the outer frame 3, and is pressed through the eject button 73.

The other end of the limiter spring 109 is engaged with an eject lever 110 rotatably attached to the chassis 1 via a support shaft 121. That is, as shown by the arrow R in FIG.
2 is pushed and the eject slider 108 is slid, the eject lever 110 moves to the position shown in FIG.
As indicated by the middle arrow S, the force transmitted by the limiter spring 109 causes the rotary operation.

The lock slider 23 is slidably arranged on the upper surface of the chassis side plate 2.
The lock slider 23 includes a pair of support slits 10.
3, 104, and these support slits 103, 104
A pair of support pins 101 and 102, which are planted on the chassis side plate portion 2, are inserted into and are slidably supported.

The lock slider 23 has a hook-shaped claw portion 24 that engages with the engaging portion 100 provided on the upper end side portion of the lid body 5. And this lock slider 2
3 is elastically biased in a direction in which the claw portion 24 is engaged with the engaging portion 100 by a compression coil spring 137 interposed between the claw portion 24 and the chassis side plate portion 2.

The lock slider 23 is provided with the claw portion 24.
By engaging with the engaging portion 100, the lid body 5 is held in the closed state. When the locking slider 23 is slid in the direction in which the claw portion 24 is engaged with the engaging portion 100, one of the support slits 103 is formed to be inclined, so that the arrow in FIG. As indicated by J, it is slide-guided on the chassis side plate portion 2 in a direction inclined to the lid closing direction of the lid body 5. Therefore, the lock slider 23 presses and supports the lid 5 on the chassis 1 side to hold the lid 5 in the closed state.

The engaging portion 100 is integrally formed with the edge cover 6 which is a member constituting the edge portion on the upper end side of the lid body 5. The edge cover 6 is integrally formed of a synthetic resin material or a metal material, forms a part of the lid 5, and also serves as an exterior component.

When the eject slider 108 is operated to move, the lock slider 23 is moved by the limiter spring 109 and the eject lever 110.
16 and is moved, and the engagement with the lid 5 is released as indicated by an arrow H in FIG. That is, the contact portion 143 provided at one end of the lock slider 23 is the contact portion 1 of the eject lever 110.
The eject lever 110, which is opposed to 44, is pressed and moved via the contact portions 143 and 144 by being rotated.

The one support slit 103 provided on the lock slider 23 is as described above.
The shape of the lid body 5 is not limited to the shape inclined in the lid closing direction. That is, in the one support slit 103, the lock slider 23 causes the claw portion 24 to engage the engagement portion 100.
The one side portion may be widened so as to form a gap in the opening / closing direction of the lid 5 with respect to the support pin 101 when it is in a position to be engaged with. However, in this case, the lock slider 23 is elastically biased by a coil spring in a direction inclined to the lid closing direction of the lid body 5. Further, in this case, the one support slit 103 of the lid 5 of the lock slider 23 is located when the lock slider 23 disengages the claw portion 24 from the engagement portion 100. In order to prevent the movement in the opening / closing direction, the other side portion has a width corresponding to the support pin 101. The other side portion of the support slit 103 has a length corresponding to the distance that the lock slider 23 moves before the engagement of the claw portion 24 with the engagement portion 100 is completed.

The lock slider 23 is moved by the FR slider 118, which is a member constituting recording / reproducing means, even when the eject slider 108 is moved while the reproducing mode (recording mode) is being executed. Blocked and retains engagement with the lid 5.

That is, the FR slider 118 has an abutting portion 122 at one end side portion, and the abutting portion 122 faces the notch 121 of the eject lever 110. This abutting portion 122 is the FR slider 118.
Is in the center position, that is, in stop mode, fast-forward mode, rewind mode, and song selection mode,
It faces the notch 121 and does not prevent the eject lever 110 from rotating. The contact portion 122 is formed in the cutout portion 121 when the FR slider 118 is at the position moved to the one end side or the other end side, that is, when the reproduction mode (recording mode) is being executed. When the eject lever 110 faces the edge portion of the side portion and is about to be rotated, the eject lever 110 comes into contact with the edge portion to prevent the rotation. As described above, when the eject slider 108 is slid while the rotation of the eject lever 110 is blocked, the limiter spring 109 is displaced and absorbs the movement.

When the lid 5 is opened, that is, when the eject lever 110 is rotated, the magnetic head 9 starts rotating the lid 5 in the opening direction. Before, the cassette holder 8 is attached to the lid 5
Even if the tape cassette 201 is moved together with the tape cassette 201, it is retracted to a position where it does not contact the tape cassette 201 held by the cassette holder 8.

That is, the eject lever 110 described above.
Has an engagement pin 112 engaged with an engagement hole 113 provided at the rear end side portion of the head hold lever 114. When the eject lever 110 is rotated by the eject slider 108 via the limiter spring 109, the head hold lever 114 is retracted via the engagement pin 112, and the head holder of the head hold lever 114 is moved. The engagement with 10 is released.

The lid 5 is opened by the urging force of the tension coil spring 64 and the leaf spring 138 when the locking by the lock slider 23 is released. The start of opening the lid 5 and the timing of retracting the magnetic head 9 to the stop position depend on the shape of the eject lever 110 and the eject lever 11.
0, the lock slider 23, and the FR slider 11
8 is defined by the positional relationship.

A cassette ejector 44 is slidably supported and attached to the cassette holder 8. The cassette ejector 44 is formed in a flat plate shape and has supporting slits 48 and 49. The supporting pins 42 and 43 planted in the cassette holder 8 are inserted into the supporting slits 48 and 49, and can be slid. Supported by.

The cassette ejector 44 has an abutting piece 57 that abuts the tape cassette 201 held by the cassette holder 8. This contact piece 57
Is located at a lower side portion of the cassette holder 8 and is bent and formed on the chassis 1 side. The cassette ejector 44 includes a spring retaining piece 45, and the spring retaining piece 45 and the spring retaining piece 47 of the cassette holder 8.
A tension coil spring 46, which is an elastic member stretched between and, elastically biases the tape cassette 201 held by the cassette holder 8 in a direction to be ejected from the cassette holder 8.

When the tape cassette 201 is inserted into the cassette holder 8, the cassette ejector 44 presses the contact piece 57 by the tape cassette 201 and resists the urging force of the tension coil spring 46. Is moved downward.

When the cassette eject 44 is moved upward by the urging force of the tension coil spring 46, it supports the tape cassette 201 held by the cassette holder 8 by the contact piece 57. To the upper side so that the upper end side portion of the cassette 209 is projected to the upper side of the lid body 5.

Then, as shown in FIG. 22, the lower portion of the lid 5, that is, the portion around the lid support shaft 35, is attached to the cassette holder 8 by the tape cassette 20.
A lock mechanism for locking the cassette ejector 44 when the device 1 is inserted is provided. This lock mechanism holds the cassette ejector 44 against the biasing force of the tension coil spring 46 at a position where the tape cassette 201 is not ejected.

This lock mechanism has a lock lever 36 rotatably mounted around a lid support shaft 35 that rotatably supports the lid body 5. The lock lever 36 is located closer to the chassis 1 than the main plate portions of the lid 5 and the cassette holder 8 are. The lock lever 36 is provided on the upper side of the lid support shaft 35,
That is, it extends in the direction toward the center of the chassis 1. The lock lever 36 has a first hooking portion 38 that faces the back surface of the lid 5 and a second hooking portion 39 that projects upward toward the tip side. is doing.

The lock lever 36 is provided on the lid support shaft 35.
A torsion coil spring arranged around the first holder 38 urges the first latching portion 38 to rotate in the direction of moving the lid 5 toward the lid 5, and the protrusion is provided near the spindle 34 of the cassette holder 8. The contact piece 33 is in contact with the contact piece 33 and is positioned at the initial position.

When the lock lever 36 is in the initial position, the locking piece 50 provided on the lower side portion of the cassette ejector 44 locks the first locking portion 38 to lock the cassette. The ejector 44 is held at the lower position.

That is, the lid 5 is in the open state,
When the cassette ejector 44 is in the upper position biased by the tension coil spring 46, the lock lever 36 is in the initial position. The lock lever 36 is operated by inserting the tape cassette 201 into the cassette holder 8 to cause the cassette ejector 4 to move.
When the tape cassette 201 presses the contact piece 57 and slides downward, the tape cassette 201 is pressed by the hooking piece 50 and temporarily resists the urging force of the torsion coil spring to prevent the lid 5 from moving. When the latching piece 50 is rotated in a direction further away from it and reaches a position facing the first latching portion 38, it is returned to the initial position by the biasing force of the torsion coil spring, and the latching piece 50. Hang 50. At this time, the eject slider 44 moves the tape cassette 201 at a position where the tape cassette 201 is not ejected, that is, the contact piece portion 57.
It is held at a position positioned below 01.

At the upper position of the supporting piece 26 on the chassis 1, that is, at the position where the second hooking portion 39 passes when the lid 5 is closed, a supporting protrusion is provided. A leaf spring 29 supported by the piece 28 is provided. This leaf spring 29 is provided when the lid 5 is in the closed state.
It has a hole through which the second hook 39 is inserted.
The leaf spring 29 has a base end side, which is the chassis 1 side, held by the support projecting piece 28, and a tip end side displaceable in an upper side, that is, in a direction away from the support shaft 35.

After the tape cassette 201 is held in the cassette holder 8 and the lid 5 is closed as shown by an arrow M in FIG. 22, the leaf spring 29 is
The tip end side is brought into contact with the second hooking portion 39 of the lock lever 36, and the tip end side is displaced in the direction away from the support shaft 35 as shown by an arrow N in FIG. Due to the displacement of the leaf spring 29, the lock lever 36 is moved in the direction of approaching the chassis 1 while maintaining the initial position with respect to the lid body 5.

When the lid 5 is closed, the lock lever 36 is inserted into the hole of the leaf spring 29 with the second hook 39 remaining in the initial position with respect to the lid 5. ing.

When the lid 5 is opened, this lock mechanism is used for the tape cassette 201.
Is moved to a position where it does not abut the capstan shafts 16 and 17 by the rotation of the lid 5 and the cassette holder 8, that is, a position sufficiently separated from the chassis 1, and then the cassette ejector 44. Release the hold on.

That is, the lid body 5 has an arrow O in FIG.
As shown in FIG. 3, when the tape cassette 201 is opened to a predetermined angle that is sufficiently separated from the chassis 1, the lock lever 36 causes the second hook 39 to move into the hole of the leaf spring 29. It is hooked on the edge portion on the front end side of the portion and is rotated around the lid support shaft 35 against the biasing force of the torsion coil spring, as indicated by arrow P in FIG.
By the rotation of the lock lever 36, the engagement of the cassette ejector 44 with the engagement piece 50 by the first engagement portion 38 is released. At this time, the cassette ejector 44 moves the tape cassette 201 to the upper side of the cassette holder 8 by the biasing force of the tension coil spring 46.

As described above, in this tape play and apparatus, when the eject button 73 is pressed before the tape cassette 201 is mounted, the lid 5 is opened and the cassette holder 8 is opened. This lid 5
Is rotated together with. At this time, the cassette ejector 44 is located on the upper side.

When the tape cassette 201 is inserted into the cassette holder 8 in the vertical direction, the cassette ejector 44 is pushed downward and locked by the lock lever 36. At this time, the tape cassette 201 is entirely stored in the cassette holder 8. At this time, the tape cassette 201 is inserted into the cassette holder 8 with the magnetic head entry hole 207 facing the magnetic head 9.

After the tape cassette 201 is housed in the cassette holder 8 and the lid 5 is closed, the tape cassette 201 is mounted in the tape cassette mounting portion on the chassis 1. After that, recording / reproducing of the information signal can be performed.

Then, with the tape cassette 201 mounted in the tape cassette mounting portion,
When the eject button 73 is pressed, when the reproducing mode (recording mode) is being executed, the limiter spring 109 is only displaced and the lid 5 and the magnetic head 9 are not moved.

When the eject button 73 is pressed while the tape cassette 201 is mounted in the tape cassette mounting portion and the mode other than the reproduction mode (recording mode) is set, the eject lever 110 is pressed. Is rotated. This eject lever 1
When the magnetic head 9 is rotated, the magnetic head 9 first starts to retreat from the standby position to the stop position, and then, the lock slider 23 releases the latching of the lid 5 to the lid 5. The body 5 starts opening the lid. Then, during rotation of the lid body 5 in the opening direction, the engagement with the cassette ejector 44 is released, and the cassette ejector 44 moves the tape cassette 201 upward.

When the lid 5 is completely opened, the tape cassette 201 has its upper portion projected above the upper edge of the lid 5.

The reproducing apparatus according to the present invention is not limited to the tape player apparatus that uses the tape cassette as the recording medium as in the above-described example, but may be configured as the disk player apparatus that uses the disk cartridge as the recording medium. it can.

When the reproducing apparatus according to the present invention is constructed as the disc player apparatus, a disc cartridge mounting section is constructed on the front surface of the chassis 1. The disc cartridge mounting portion is configured such that the disc cartridge is positioned and mounted, and recording / reproducing of an information signal to / from the recording disc of the disc cartridge can be performed.

That is, the disc cartridge mounting portion holds a chucking portion at the central portion of the recording disc and rotates the recording disc, and a magnetic table for writing and reading information signals to and from the recording disc. It is configured to have a head device or an optical pickup device.

In this disc player device, by mounting the disc cartridge in the disc cartridge mounting portion, the information signal is reproduced from the recording disc of the disc cartridge. That is, the reproducing apparatus rotates the recording disk by the disk table and reproduces an information signal for the recording disk via the magnetic head device or the optical pickup device.

[0102]

As described above, the reproducing apparatus according to the present invention has the claw portion which is slidably disposed on the main body portion and engages with the engaging portion provided on the lid body. A lock slider that holds the lid in a closed state by elastically urging in the engaging direction to engage the engaging portion with the claw portion. The second slit is slid in the engaging direction by being engaged and supported by the pair of support pins, and the second slit is configured with the support pin engaging and supporting the first slit as a fulcrum of rotation. Is rotated in a direction inclined to the lid closing direction of the lid body to press and support the lid body on the main body side.

Therefore, in this reproducing apparatus, the lock slider does not cause the lid body to move with respect to the main body portion due to vibration or impact.

That is, according to the present invention, the movement of the lid body for supporting the recording medium via the holder portion with respect to the main body portion is prevented and the generation of abnormal noise and the recording / reproducing are performed without causing the structure to be complicated and upsized. It is possible to provide a reproducing device in which signal deterioration is prevented.

[Brief description of drawings]

FIG. 1 is a perspective view showing a configuration of a reproducing apparatus according to the present invention, which is configured as a tape player apparatus.

FIG. 2 is a perspective view showing a state where a lid of the reproducing apparatus is opened.

FIG. 3 is a perspective view showing a configuration of a side of the reproducing apparatus on which a shutter is provided.

FIG. 4 is a perspective view showing a state where the shutter of the reproducing apparatus is opened.

FIG. 5 is a perspective view showing a configuration of a tape cassette used in the reproducing apparatus.

FIG. 6 is an exploded perspective view showing a configuration of the reproducing device.

FIG. 7 is a front view showing a configuration of a cassette holder of the reproducing apparatus in a see-through manner.

FIG. 8 is a rear view showing the configuration of the chassis of the reproducing apparatus.

FIG. 9 is a rear view showing a state in which the magnetic head is advanced in the chassis.

FIG. 10 is a side view showing the structure of the reproducing apparatus in a see-through manner.

FIG. 11 is a side view showing the configuration of the main part of the reproducing device in a see-through manner.

FIG. 12 is a transparent side view showing a state in which a lid of the reproducing apparatus is opened.

FIG. 13 is a front view of a main part of the reproducing apparatus, showing the structure of the main part in a see-through manner.

FIG. 14 is a plan view showing the structure of the reproducing apparatus.

FIG. 15 is a plan view showing a configuration for locking the lid of the playback device.

FIG. 16 is a plan view showing a state where the lid is unlocked in the reproducing device.

FIG. 17 is a bottom view showing the configuration of the reproducing apparatus.

FIG. 18 is a cross-sectional view showing the structure of the reproducing apparatus.

FIG. 19 is a vertical sectional view showing the structure of the reproducing apparatus.

FIG. 20 is a vertical cross-sectional view showing a configuration of the reproducing apparatus and a tape cassette mounted in the reproducing apparatus.

FIG. 21 is a side view showing the configuration of the tape cassette mounted in the playback device.

FIG. 22 is an enlarged side view of an essential part showing the configuration of a mechanism for locking the cassette ejector in the reproducing device.

[Explanation of symbols]

1 chassis, 2 chassis side plate, 3 outer frame,
4 electronic board, 5 lid, 6 edge cover, 7 housing part, 8 cassette holder, 9 magnetic head, 16, 17
Capstan shaft, 23 Lock slider, 44 Cassette ejector, 74 Operation button, 95 Connecting member, 96
Connecting pin, 105 support plate, 108 eject slider, 109 limiter spring, 110 eject lever, 201 tape cassette

─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Shinji Hamakawa 6-735 Kita-Shinagawa, Shinagawa-ku, Tokyo Inside Sony Corporation (56) References: Kaihei 3-115989 (JP, U) 5-77475 (JP, U) Actual development Sho 62-98090 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) G11B 33/02 502

Claims (4)

(57) [Claims] 1. A main body portion having a chassis in which a recording medium mounting portion for mounting a recording medium is provided, and a lid body rotatably supported by the main body portion for opening and closing the recording medium mounting portion. Slidingly arranged on the main body portion, having a claw portion that engages with an engaging portion provided on the lid, and elastically provided in an engaging direction for engaging the claw portion with the engaging portion. A lock slider that is biased to hold the lid body in a closed state by engaging the claw portion with the engagement portion, and a lock slider formed on one end side of the lock slider along the engagement direction.
First slit formed and the other end of the lock slider
Is formed on the side and is inclined with respect to the engagement direction.
A second slit having a slanted portion,
A pair of slippers engaged with and supported by a pair of support pins
Comprising a preparative, and the lock slider, the first and second slits
By engaging and supporting the pair of support pins,
While sliding in the mating direction,
The second support pin that engages and supports is used as the rotation fulcrum.
Sloped in the closing direction of the lid due to the inclined part of the slit
A reproducing apparatus , which is rotated in a direction to press and support the lid body toward the main body. 2. The engaging portion is provided on one side edge portion of the lid body.
Characterized in that it is formed integrally with the constituent members
The reproducing apparatus according to claim 1, wherein 3. The claw portion of the second slit is the
When engaged with the engaging portion, the lid is attached to the support pin.
One side is wide so as to form a gap in the opening and closing direction of the body
Formed, the lock slider is inclined in the lid closing direction of the lid.
Claims, characterized in that an elastic means for urging the direction
1. The playback device according to 1. 4. A slidable member provided on the main body
The slide button slides as the eject button is pressed.
Eject slider, and the eject slider that is rotated as the eject slider slides.
The ejector lever is provided, and the lock slider is provided for turning the eject lever.
Along with that, it is moved in a direction to release the engagement.
The reproducing apparatus according to claim 1, wherein