JPH0786998B2 - Disc clamp device for disc player - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a disc player in which a disc pulled out from a disc cartridge is conveyed by an elevating / lowering unit, installed on a turntable of a disc drive unit, and clamped. The present invention relates to a disc clamp device which can ensure a disc clamp operation with a particularly simple mechanism and a minimum number of parts.

[Conventional technology]

2. Description of the Related Art In recent car audio systems and the like, a disc player integrally provided with a disc changer has been put into practical use.

In this type of disc changer integrated disc player, for example, a disc cartridge C as shown in FIG.
Is used, and a plurality of discs DS are stored in the disc cartridge C. This disk cartridge C
When the disc is mounted, the elevation drive unit 100 searches the disc, and the pair of pull-out rollers 101a and 101b pulls out the predetermined disc DS. This lifting drive
The 100 is equipped with a clamper 102, a clamp arm 103 that rotatably supports the clamper 102, a disk support table 107, and the like.

Further, at the position where the elevating / lowering drive unit 100 descends, there is a disc drive unit having a turntable 104 driven by a motor for rotating the disc DS, an optical pickup 105 facing the disc DS and reproducing information, and the like. It is provided.

When the disc DS is pulled out from the disc cartridge C, the lift drive unit 100 holding it descends,
The S is installed on the turntable 104, and the disc DS is clamped on the turntable by the clamper 102.

[Problems to be Solved by the Invention]

In the disc player with integrated disc changer described above, the clamper 102 for clamping the disc on the turntable 104 is provided in the elevating / lowering operation unit 100. In order not to do so, the clamper 102 must rise. Further, when the lifting / lowering operation unit 100 descends, the clamper 102 must be pressed against the disc by an appropriate spring pressure, and the disc must be clamped by the turntable 104 and the clamper 102.

Therefore, in this type of mechanism, in the raising / lowering operation unit 100, a mechanism for pressing the clamp arm 103 in the clockwise direction via the fulcrum 103a and a mechanism for pressing the clamp arm 103 by spring pressure when the raising / lowering operation unit descends. A mechanism is required for driving in the clockwise direction. In this way, the lifting operation unit
Since the clamp arm 103 must be moved in different directions depending on the position of 100, at least 2
You need more than one spring and a stopper to keep the clamp arm 103 raised,
The mechanism inside the lifting operation unit 100 is very complicated.

Further, in the above-described conventional example, the clamp arm 103 is rotatably supported by the fulcrum 103a in the lifting operation unit 100. When the raising / lowering operation unit 100 descends to the disc playing position, the clamper 102 must be centered with respect to the turntable 104. If the clamp arm 103 is positioned by the fulcrum 103a as described above, the raising / lowering operation is performed. When part 100 descends, clamper 102
There is a possibility that the center of the turntable 104 may be displaced. Therefore, conventionally, it is necessary to highly accurately determine the position of the fulcrum 103a that supports the clamp arm 103 and the like, and it is necessary to increase the accuracy of parts and the accuracy of assembly.

The present invention is to solve the above-mentioned problems. A spring provided only in the lifting / lowering operation unit urges the clamper upward when the lifting / lowering operation unit is raised, and further the lifting / lowering operation unit descends to the playing position. It is an object of the present invention to provide a disc clamp device for a disc player in which the clamper can be urged toward the turntable.

[Means for Solving the Problems]

The disc clamp device of the present invention has a cartridge mounting portion in which a disc cartridge is installed, a clamper and a clamp arm to which the central axis of the clamper is connected, and holds a disc pulled out from the inside of the disc cartridge to move up and down. And a disk drive unit provided at a position where the lifting operation unit descends. In the lifting operation unit, the clamp arm is swingably supported by a first fulcrum. A second fulcrum is provided at a position where the elevating / lowering unit descends so as to abut the clamp arm and swingably support the clamp arm at a position farther from the clamper than the first fulcrum. A spring for urging the clamp arm in the descending direction toward the disk drive unit is provided between the second fulcrum and When the pump arm is away from the second fulcrum, the spring urges the clamper in a direction away from the turntable of the disk drive unit, and when the clamp arm hits the second fulcrum and the elevation drive unit further descends, The clamper is pressed toward the turntable by the biasing force of the spring.

[Work]

In the disc clamp device described above, the clamp arm moves away from the second fulcrum when the raising / lowering operation unit is raised to search for and pull out the disc in the cartridge, and the clamp arm is provided with the first raising / lowering chassis. It is supported only by the fulcrum of. At this time, the biasing force of the spring acts on the first fulcrum outside the clamper. Therefore, the clamper is lifted up by the urging force of this spring, so that it does not interfere with the disk drawn into the lifting drive unit. On the contrary, when the raising / lowering unit is lowered to reproduce the disc, the clamper is supported by the second fulcrum. At this time, since the spring is located between the clamper and the second fulcrum, the clamper is biased toward the turntable by the biasing force of the spring, and the disc is clamped between the clamper and the turntable. In this way, one spring can exert the urging force in both directions of the force for raising the clamper and the force for clamping the disc.

Further, if the clamp arm is supported by the V groove or the like at the second fulcrum, even if the clamp arm provided in the lifting / lowering operation unit has a rough support accuracy, the lifting / lowering unit is lowered to the playing position. In doing so, the clamp arm is accurately positioned at the second fulcrum, and centering between the clamper and the turntable becomes easy.

〔Example〕

 Examples of the present invention will be described below.

FIG. 1 is an external perspective view showing the entire structure of a disc changer-integrated disc player, FIG. 2 is a perspective view showing a cartridge mounting portion and a disc playing portion therein, and FIG. 3 is a perspective view showing a lifting operation portion. 4A and 4B are sectional views showing the operation of the disc clamp device.

The disc changer-integrated disc player is composed of a cartridge mounting portion indicated by D and a disc playing portion indicated by E. As shown in FIG. 1, a disc cartridge C accommodating a plurality of discs (compact discs in the illustrated embodiment) is inserted into the cartridge mounting portion D from the front. A cartridge table 30 is installed below the disc mounting portion D. The cartridge table 30 is fixed to the bottom plate 34, and the disc cartridge C is mounted while being guided by the cartridge table 30. A pressure roller 31 is provided on a ceiling plate 32 of the apparatus body. The pressing rollers 31 are biased by leaf springs 33, respectively, and the loaded cartridge C is pushed against the cartridge table 30 by the biasing force of the leaf springs 33. A lock mechanism for locking the loaded disc cartridge C and an eject mechanism for ejecting the disc cartridge are provided below the cartridge table 30.

As shown in FIG. 2, a disc drive unit 40 is arranged in the disc playing portion E adjacent to the cartridge mounting portion D. The disk drive unit 40 is the bottom plate 34
It is fixed side by side with the disk table 30 on the surface. The disk drive unit 40 is provided with a turntable 41, an optical pickup 42, and a clamper support member 43. A pair of clamper support members 43 is provided on the left and right, and each of them has a clamper 81 to be described later.
A V groove (second fulcrum) 43a for supporting (see FIG. 3) is formed. The V groove 43a serves as a second fulcrum with respect to the clamp arm 81 when the ascending / descending operation unit 60 described later descends, and the V groove 43a can also position the clamper 81. The disk drive unit 40 is arranged at the lowest part in the entire apparatus shown in FIG. 1, and the disk DS pulled out from the disk cartridge C by the elevating and lowering drive part 60 to be described later is carried to this lowest part. The center of the disc is placed on the turntable 41 and clamped by the clamper. Then, the disc is rotated together with the turntable 41 by the force of the motor, and the optical pickup moves along the guide shaft 44.
Performed by 42.

As shown in FIG. 1, in the embodiment shown in the figure, the disc mounting portion D, the disc playing portion E, etc.
2. The unit Y is surrounded by the bottom plate 34 and the left and right side plates 35a, 35b connecting the ceiling plate 32 and the bottom plate 34. And the ceiling plate 32, the bottom plate 34, and the side plates 35a, 35b
The unit Y surrounded by is supported by a housing provided outside these. That is, the casing is composed of the bottom casing 36 and the side casings 37a and 37b fixed to the bottom casing 36. The unit Y is levitationally supported on the housing by a plurality of floating dampers 38a, 38b, 38c. The floating damper is a rubber bag whose inside is filled with air or liquid. FIG. 1 assumes that the bottom plate 34 and the bottom housing 36 are installed in a horizontal posture, and the suspension plates 39 arranged in the vertical direction cause the side plates 35a and 35b to move to the side housings 37a and 37b.
It is hung from.

As shown in FIGS. 1 and 2, the above-mentioned unit Y
Lifting mechanisms 50 are provided at three locations inside. The lifting mechanism 50 includes a guide shaft 51, a lifting screw 52, and a gear 53 fixed to the lifting screw 52.
It consists of and. The gears 53 provided on each of the three lifting mechanisms 50 are rotationally driven in synchronization with each other by a drive mechanism (not shown) provided on the lower surface of the bottom plate 34. The lifting / lowering operation unit 60 is vertically driven in the unit Y by the lifting / lowering mechanisms 50 at these three locations.

As shown in FIG. 3, the ascending / descending operation unit 60 is provided with guide holes 61 and female screw holes 62 adjacent thereto at three positions. The guide shaft 51 of the lifting mechanism 50 is inserted into each guide hole 61 provided in the lifting operation unit 60, and the lifting screw 52 is screwed into each female screw hole 62. The gear 53 is driven by the drive mechanism provided on the lower side of the bottom plate 34, and the respective lifting screws 52 of the three lifting mechanisms 50 rotate in synchronization, so that the lifting operation unit 60 shown in FIG. It is driven up and down in the unit Y. By this raising / lowering operation, the raising / lowering operation unit 60 can be moved to a position for taking out one of the discs inserted in the disc cartridge C and a disc playing position at the lowest portion.

As shown in FIG. 3, the lifting plate 60 is provided with a support plate 13. The disc ejecting member 25 is supported by a guide pin 26 provided on the support plate 13 so as to be linearly movable in the ef direction. A drive mechanism 10 including a motor and a gear group is mounted on the support plate 13. In this drive mechanism 10, when the gear group is driven by the motor, the drive pin 10b provided on the drive gear 10a slides in the groove 25a of the disc ejecting member 25, whereby the disc ejecting member 25 e-f. You can drive in the direction.
A return spring 63 is provided between the disc ejecting member 25 and the support plate 13, and the disc ejecting member 25
Is always biased in the return direction (e direction). Further, a disc pressing piece 25b is provided on the left end of the disc ejecting member 25 in the figure.
In addition, the eject drive protrusion 25c is integrally formed. The disc pressing piece 25b is for pushing out the disc DS from the inside of the cartridge C, and the eject drive protrusion 25c is for driving an eject mechanism provided below the cartridge mounting portion D. Further, the power of the drive mechanism 10 is transmitted to the upper disc drawing roller 66 via the gear group. When the motor in the drive mechanism 10 is started, both the disc ejecting member 25 and the disc pull-out roller 66 are driven. As shown in FIG. 3, this upper pull-in roller 66
Both ends of are supported by a swing lever 67. The swing lever 67 is swingably supported with a pin 67a as a fulcrum. The swing lever 67 is urged downward by a spring 68, and the urging force sets a disc clamping force between the upper pulling roller 66 and the lower pulling roller 69. The lower pull-in roller
The 69 is rotatably supported without moving up and down. At the end of the upper pull-in roller 66, there is a swing lever.
A protruding portion 66a protruding from 67 is provided. As shown in FIG. 1, the bottom plate 34 is provided with a roller restricting piece 70. When the elevating / lowering part 60 descends to the disc playing position, the roller restricting piece 70 is contacted with the projecting portion 66a, and the swing lever is moved. By the rotation of 67, the upper pull-in roller 66 relatively escapes vertically with respect to the descending / lowering operation unit 60, and the disc holding force by the pair of rollers 66 and 69 is released (first (See Figure 6).

Also, as shown in FIG. 3, the lifting chassis of the lifting operation unit 60.
A clamp arm 81 is supported by 11. A pair of support pins (first fulcrums) 82 are fixed to the lifting chassis 11, and support holes 81b formed in the clamp arm 81 are supported by the support pins 82. The support pin 82 and the support hole 81b are inserted in a considerably rough state, and the clamp arm 81 is supported with respect to the support pin 81b so as to be swingable and slightly vertically movable. A bent support piece 81a is formed at the rear end of the clamp arm 81. When the raising / lowering operation unit 60 descends to the disc playing position in the unit Y, the supporting piece 81a at the rear end of the clamp lever 81 causes the supporting groove 81a of the clamper supporting member 43 of the disc driving unit 40 shown in FIG. The fulcrum of 2) 43a. At this time, the projection 81c projecting inside the support piece 81a enters the inside of the pair of clamper support members 43, and the clamp arm 81 is prevented from shifting to the left and right. The clamp arm 81 is provided with an inclined guide piece 81d and a stopper piece 81e. The inclined guide piece 81d is for guiding the tip of the disc DS pulled out from the cartridge C downward. Further, the stopper piece 81e is for restricting the leading end of the pulled-out disc DS so as not to go too far.

A spring 12 is attached to the rear end of the lifting chassis 11. One arm 12b of this spring 12 contacts the upper surface of the lifting chassis 11, and the other arm 12b.
12a is a spring support piece 8 formed on the clamp arm 81.
It is hung on 1f. The arm 12a of the spring 12 biases the clamp arm 81 downward in the figure at an intermediate position between the support pin (first fulcrum) 82 and the V groove 43a (second fulcrum) of the clamper support member 43. Has been done.

A clamper 80 is attached to the tip of the clamp arm 81 so that the central shaft 80
It is rotatably supported by a. Further, the lifting chassis 11 is provided with a stopper 11a bent upward, and when the clamper 80 is biased upward, the clamper 80 is regulated by the stopper 11a. The clamper 80 has a magnet inside, and in the state shown in FIG. 3, the clamper 80 is attracted to the stopper 11a by the attraction force of this magnet. When the lifting / lowering operation unit 60 descends to the disc playing position and the clamper 80 is urged toward the turntable 41, the clamper 80 attracts the turntable 41 by the attraction force of the magnet, and this force causes the disc DS to turntable. It is clamped by 41 and clamper 80.

Further, the raising / lowering operation unit 60 is provided with a mechanism such as a support table 71 for supporting the disk pulled out from the inside of the cartridge C by the pull-out rollers 66 and 69 from below. When the raising / lowering operation unit 60 descends to the playing position, the support table 71 and the lower pull-in roller 69 escape below the turntable 41 so that they do not interfere with the disc rotationally driven by the turntable 41. (See Figure 4B).

Next, the structure of the loaded disc cartridge will be described with reference to FIGS. 7 and 8.

This disk cartridge C has a plastic case 90
A plurality of (6 in the illustrated embodiment) disks DS are housed therein. FIG. 7 is a perspective view showing the same direction as the insertion direction shown in FIG. 1, and FIG. 7 shows a state in which the bottom cover 91 is removed with the top and bottom inverted from FIG.

A plurality of partition plates 92 are inserted in the case 90. As shown in FIG. 8, spacers 92a are integrally provided at both ends of the partition plate 92. A plurality of partition plates 92 are stacked, and a slit S having a constant width is formed according to the vertical dimension of the spacer 92a. The slit S divides the interior into a plurality of layers, and the discs DS are housed in the slits S, respectively. In the case of the illustrated embodiment, the slit S is divided into six sections, and six discs DS can be stored.

In addition, a pair of left and right leaf springs 93 is housed in the case 90. The leaf spring 93 is formed in a substantially triangular shape, and is arranged so as to penetrate each partition plate 93. As shown in FIG. 9, the fulcrum of the leaf spring 93 in the disc urging direction changes according to the position of the disc DS to be stored. Therefore, in FIG. 9, when the disc DS is completely inserted, the leaf spring 93 urges the disc DS in the accommodating direction, and when the disc DS is ejected, the leaf spring 93 ejects the disc DS in the ejecting direction. Function to urge to. Further, a disc ejector 94 is provided on the back side of the case 90. The ejector 94 is rotatably inserted into the shaft 95. In the illustrated embodiment, six ejectors 94 are provided so as to be overlapped with each other, each of which is located on the back side of each of the six slits S,
It faces the rear end of the disc DS housed in each slit S (see FIG. 9).

The case 90 has an inclined surface 96 at one corner (corner in the insertion direction). When the disc cartridge C is mounted in the cartridge mounting portion D, as shown in FIG. 9, the disc pressing piece 25b of the disc ejecting member 25 provided in the elevating / lowering portion 60 faces the inclined portion 96, The disc pressing piece 25b faces the rear end of the ejector 94.

Next, the operation of the disc changer-integrated disc player will be described.

A disc DS is accommodated in each slit S of the disc cartridge C, and the disc cartridge C accommodating the plurality of discs DS is mounted in the cartridge mounting portion D in the unit Y. When the cartridge C is mounted in the cartridge mounting portion D, the cartridge table
It is locked by a lock mechanism provided on the lower surface of 30. At this time, the loaded disk cartridge C is
The disc ejection port side faces the disc playing portion E.

When a desired disc in the disc cartridge C is played, a disc to be played is first searched. This search operation is performed by rotating the elevating screws 52 of each elevating mechanism 50 in synchronization with each other by a drive mechanism provided under the bottom plate 34 of the unit Y. By the rotation operation of each lifting screw 52, the fourth
The raising / lowering operation unit 60 shown in the figure operates up and down in the unit Y. In the drive mechanism provided on the lower side of the bottom plate 34, the operation amount is detected by the sensor,
By the detection operation of this sensor, it is possible to recognize which height position the lifting operation unit 60 has reached. That is, by recognizing the height position of the raising / lowering operation unit 60, the raising / lowering operation unit 60 is moved to the slit S of the cartridge C.
It is possible to face the desired one of them. As shown in FIG. 5, when the search operation is completed, the lifting operation unit 60 stops at a predetermined height position, and at this time, the pair of pull-out rollers 66 and 69 provided in the lifting operation unit 60 cause the cartridge It faces the front of any slit S of C. In addition, as shown in FIG.
The disc pressing piece 25b of the disc ejecting member 25 provided on the disc 60 faces the ejector 94 in the disc cartridge 90 located behind the slit S where the pull-out rollers 66 and 69 face each other.

In this state, the drive mechanism provided in the lifting operation unit 60
The motor in 10 starts. As a result, the gear shown in FIG.
A disc ejecting member by a drive pin 10b provided on 10a.
25 is driven back and forth once from the f direction to the e direction, and at the same time, the upper pulling roller 66 is driven in the disc pulling direction (counterclockwise direction). F of the disc ejecting member 25 at this time
During the stroke in the direction, the disc pressing piece 25b on the outside 25 of the disc ejecting portion presses the ejector 94 shown in FIG. The disc DS is ejected from the cartridge 90 by the operation of the ejector 94. At this time, since the upper pull-out roller 66 provided in the elevating operation unit 60 is rotating in the disc pull-in direction, the disc DS ejected from the cartridge C is nipped by the pull-out rollers 66 and 69, and the upper roll is shown. By the rotational force of the pull-out roller 66, the pull-out roller 66 pulls it out onto the support table 71 in the lifting / lowering operation unit 60. disk
Drive mechanism when the DS is completely stored in the lifting / lowering unit 60
The motor in 10 stops. At this time, the clamp arm 81 in the lifting / lowering operation unit 60 is moved to the disc drive unit 40.
It is separated from the clamper support member 43 provided in the.
Therefore, as shown in FIG. 4A, the clamp arm 81 is supported only by the support pins 82 provided on the lifting chassis 11. Further, the arm 12a of the spring 12 provided on the lifting chassis 11 has a first fulcrum (82α in the upper schematic view of the drawing) supported by the support pin 82 with respect to the clamper 80.
The clamp arm 81 is pressed downward in the figure by an urging force F1. Therefore the first
The clamp arm 81 is rotated clockwise due to the fulcrum 82 (82α in the schematic diagram) and the force F1. In this state, the clamper 80 provided at the tip of the clamp arm 81
Hits the stopper 11a provided on the lifting chassis 11,
A magnet provided inside the clamper 80 attracts the stopper 11a. In this way, the lifting operation unit 60
Since the clamper 80 is lifted when the cartridge C is raised, the cartridge C is pulled by the pull-out rollers 66 and 69.
The clamper 80 is in a state of escaping upward from the traveling path of the disk DS pulled out from.

After the disk DS is drawn into the lifting / lowering unit 60, the lifting / lowering mechanism 50 is started, and the lifting / lowering unit 60 is moved to the lowest position shown in FIG. The disk DS held in the lifting / lowering operation unit 60 is installed on the turntable 41 of the disk drive unit 40. At this time, as shown in FIG. 4B, the support piece 81a provided at the rear end of the clamp arm 81 is the clamper support member provided on the disk drive unit 40.
It is hooked in the V groove 43a of 43. First, in this state, the V groove 4
The clamper 81 is positioned by 3a. When the raising / lowering operation unit 60 is further lowered, as shown in FIG.
The support pin 82, which is a fulcrum of the clamp arm 81, floats from the clamp arm 81, and the clamp arm 81 moves to the V of the clamper support member 43.
It will be supported only by the groove 43a. Ie the 4th
Clamp arm 8
1 is the second fulcrum by the V groove 43a (shown by 43β in the schematic diagram)
Will be supported by. At this time, spring 12
The arm 12a pushes the clamp arm 81 downward with force F2 on the clamper side with respect to the second fulcrum. Therefore, the force F2 causes the clamp arm 81 to rotate counterclockwise with respect to the second fulcrum, and the clamper 80 presses the disc DS against the turntable 41. The clamper 80 presses the disc DS against the turntable 41 by the spring pressure and the attracting force of its own magnet. In this clamped state, the upper pull-out roller 66 has the roller regulating piece 70.
(See FIGS. 1 and 6). Further, the lower pull-out roller 69 and the disc support table 71 are escaped below the disc DS. In this state, the disc DS is driven by the turntable 41, and the reproduction operation is performed by the optical pickup 42.

Next, the operation of returning the finished disc DS to the cartridge C will be described.

When the playback operation by the disk drive unit 40 is completed,
The elevating / lowering unit 60 moves up, and the lower pull-out roller 69 and the support table 71 raise the disc DS.
On the way, the upper pull-out roller 66 separates from the roller regulating piece 70, and the disc DS is nipped by both rollers 66 and 69. The raising / lowering operation unit 60 has a predetermined slit S of the cartridge C.
When the disc is raised to the position of (the slit from which this disc is pulled out) and stopped, the motor of the drive mechanism 10 in the lifting operation unit 60 is started, the pull-out roller 66 is driven, and the disc DS
Are returned to the cartridge.

In the illustrated embodiment, the disk drive unit 40 is provided with the clamper support member 43 serving as the second fulcrum.
This second fulcrum may be provided on the bottom plate 34,
It may be provided on the side plate 35b (see FIG. 1) of the unit Y. The spring 12 may be a coil spring that pulls the clamp arm 81 downward in the drawing.

〔effect〕

As described above, according to the present invention, one spring urges the clamper upward when the raising / lowering operation unit is raised, and when the raising / lowering operation unit is lowered, the spring turns the clamper. It can be biased toward the table. Therefore, it becomes possible to realize the clamp raising and the clamp operation with a very simple mechanism.

Further, as in the illustrated embodiment, if the clamp arm can be supported by the V groove at the second fulcrum, even when the clamp arm is roughly supported in the raising / lowering operation unit, the clamp arm can be supported at the playing position. The V-groove allows the clamp arm to be reliably positioned.

[Brief description of drawings]

The drawings show an embodiment of the present invention. FIG. 1 is a perspective view showing the entire structure of a disc player with an integrated disc changer, FIG. 2 is a perspective view showing a cartridge mounting portion and a disc playing portion, and FIG. Is a perspective view showing a part of the ascending / descending operation part and the disk drive unit, FIGS. 4A and 4B are sectional views showing the operation of the disk clamp device, FIG. 5 and FIG.
FIG. 7 is an enlarged front view of the apparatus showing a state in which a cartridge is mounted, FIG. 7 is a perspective view showing a disc cartridge, FIG. 8 is an exploded perspective view showing the disc cartridge upside down, and FIG. 9 is a disc from the cartridge. FIG. 10 is a plan view showing the ejecting operation, and FIG. 10 is a side view schematically showing the structure of a disc player integrated disc player for explaining the problems of the conventional technique. 10 ... Drive mechanism, 11 ... Elevating chassis, 12 ... Spring, 25 ... Disc ejecting member, 25b ... Disc pressing piece, 25c ... Eject drive protrusion, C ... Disc cartridge, D ... Cartridge mounting part , E …… disc playing part, DS …… disc, 40 …… disc drive unit, 41 …… turntable, 42 …… optical pickup, 43
...... Clamper support member, 43a ...... V groove (second fulcrum), 5
0 …… Lifting mechanism, 60 …… Lifting unit, 66, 69 …… Disc pulling roller, 80 …… Clamper, 81 …… Clamp arm, 81c …… Support piece, 82 …… Support pin (first fulcrum) .

Claims (1)

[Claims] 1. A raising / lowering operation for raising / lowering a cartridge mounting portion on which a disc cartridge is installed, a clamper and a clamp arm to which a central axis of the clamper is connected, and for holding a disc pulled out from the disc cartridge. And a disk drive unit provided at a position where the lifting operation unit is lowered. In the lifting operation unit, the clamp arm is swingably supported by a first fulcrum, and also the lifting operation is performed. A second fulcrum that abuts the clamp arm and swingably supports the clamp arm at a position farther from the clamper than the first fulcrum is provided at the position where the part descends. A spring for urging the clamp arm in the descending direction toward the disk drive portion is provided in the middle of the fulcrum of the second arm, Of the spring, the clamper is urged in the direction away from the turntable of the disk drive section, and when the clamp arm hits the second fulcrum and the elevation drive section further descends, the spring urges the spring. A disc clamp device in a disc player, wherein a clamper pressurizes the clamper toward a turntable.