JPH0734560Y2 - Disk player - Google Patents

Description

[Technical Field] The present invention relates to a compact disc player for car audio and the like, and in particular, is supported by an elastic member when the player main body is pulled out from an outer housing attached to a vehicle body or the like. The present invention relates to a disc player capable of forcibly restraining an existing disc drive unit in a fixed state.

[Background of the invention]

FIG. 7 schematically shows the structure of a compact disc player for car audio. In a compact disc player for car audio, a disc drive unit 1 provided with a turntable 1a, a pickup 1b, and a clamp member 1c for moving up and down is supported by a player main body 2 via elastic members such as dampers. Therefore, the vibration from the outside is attenuated by this elastic member and is not transmitted to the disk drive unit 1. Further, in the player main body 2, a supply roller 3 and a guide roller 4 for supplying the inserted disc D onto the turntable 1a of the disc drive unit 1.
Is provided. The disc D inserted into the player body 2 is sandwiched by a pair of rollers 3 and 4, and is fed onto the turntable 1a by a supply roller 3 driven by a motor. Then, the disc D is clamped on the turntable 1a by the clamp member 1c, and then the disc D is rotationally driven by the turntable 1a, and the information is reproduced by the pickup 1b.

[Problems to be solved by the invention]

When a compact disc player as shown in FIG. 7 is used for car audio, the player body 2 can be pulled out from an instrument panel in the vehicle and taken out of the vehicle while the vehicle is parked. May be required. One of the purposes of making such a structure is to prevent the player's body from being stolen, and the other purpose is to allow the compact disc player to be used by being connected to an amplifier in another place, for example, in a room.

As shown in FIG. 7, when the disc drive unit 1 is elastically supported by the player main body 2 by a damper or the like, the disc drive unit 1 is constrained and positioned when the disc D is not inserted. Further, after the disk D is loaded, this constraint is released and the disk drive unit 1 is generally elastically supported by a damper or the like. In the disc player having such a structure, even if the player main body 2 is pulled out from the instrument panel or the like of the automobile when the disc D is not loaded, the disc drive unit 1 is constrained and positioned at this time. Does not occur. However, when the chassis 1 is taken out of the vehicle while the disc D is loaded, the disc drive unit 1 remains elastically supported in the player main body 2, so that the disc may be transported during carrying. The drive unit 1 moves freely within the player main body 2. Therefore, an accident such as damage to the clamped disk D may occur.

The present invention solves the above problems, and when used in a car audio system, when the chassis is pulled out from the outer casing that is fixed in the vehicle, the disk drive unit immediately (EN) Provided is a disc player in a restrained state.

[Specific means for solving problems]

The present invention is directed to a disc player in which a disc drive unit having a turntable that rotationally drives the disc and a pickup that faces the disc mounted on the turntable is supported by a player body through an elastic member. The player body is provided with a restraint member that restrains the disc drive unit, and a mounting detection member that is urged to move the restraint member in a direction that restrains the disc drive unit. The outer casing to be inserted is provided with a lock member for moving and maintaining the attachment detecting member in a direction opposite to the urging direction when the player main body is inserted. is there.

In the present invention, when the player main body is pulled out from the outer casing, the attachment detection member maintained by the lock member of the outer casing is moved in one direction by the urging force of the spring or the like. The disk drive unit, which is driven and is elastically supported, is constrained and positioned by this constraining member. Therefore, even if the player body is carried and carried thereafter, the disc drive unit in the player body does not vibrate, and even if the disc drive unit is loaded with a disc, an accident such as damage to the disc is prevented. it can.

[Example of device]

An embodiment of the present invention will be described below with reference to FIGS.

FIG. 1 is a plan view showing a player body of a compact disc player for car audio, FIG. 2 is a side view showing a main part thereof, FIG. 3 is a side view showing a driving force transmission system to a supply roller, and FIG. FIG. 4 is an exploded perspective view showing a mechanism provided on the side surface of the player main body, and FIGS. 5 (A) to 5 (C).
FIG. 6 is a side view showing the operation of the mechanism shown in FIG. 4 for each operation, and FIG. 6 is a perspective view showing the player main body and the outer casing.

The player main body 10 shown in FIG. 1 is an outer casing shown in FIG.
It is inserted and installed in 80. This outer housing
80 is installed in, for example, an instrument panel of a car. The player main body 10 holds a handle 81 provided on the player main body 10 and pulls it out of the outer housing 80 to carry it. A lock member 82 having a substantially triangular shape is provided at the inner end of the outer casing 80.

In FIG. 1, reference numeral 10a is a left side plate of the chassis of the player body 10, and 10b is a right side plate. The side plates 10a and 10b are part of a metal chassis. Four dampers 11a are provided on the inner surfaces of the side plates 10a and 10b. This damper 1
1a has a structure in which a fluid is filled inside a thin rubber bag, for example. A support shaft 13 is provided on the outer surfaces of both side plates of the disk drive unit 12 that drives the disk D, and the support shaft 13 is supported by the damper 11a. Also, as shown in FIG. 2, a disk drive unit
A plurality of points 12 are suspended from both side plates 10a and 10b of the chassis by springs 11b. The disk drive unit 12 includes the damper 11a and the spring 11b,
Protected against direct vibration of automobiles. Positioning shafts 14a to 14d are provided on both side plates of the disk drive unit 12. The positioning shafts 14a and 14b project outward from the left side plate 10a, and the other positioning shafts 14c and 14d project outward from the right side plate 10b. I will explain in detail later,
When the disk D is not loaded, the positioning shafts 14a to 14d are constrained and the disk drive unit 12 is positioned and fixed. Then, when the loading of the disk D is completed and the reproduction operation is possible, the restraint of the positioning shafts 14a to 14d is released, and the disk drive unit 12 is elastically supported by the damper 11a and the spring 11b. It becomes a state.

The disk drive unit 12 is provided with a turntable 12a for rotating the disk D. The turntable 12a is rotationally driven by a motor provided in the disk drive unit 12. Further, the disk drive unit 12 is provided with a pickup 12c movably supported by a pair of guide shafts 12b. Optical members such as a laser diode and a pin photodiode are mounted in the pickup 12c. Then, the recording surface of the disc D is irradiated with the laser beam by the objective lens 12d. A support shaft 12e is provided at the left end of the disk drive unit 12 in the figure, and the clamp lever 12f is rotatably supported by the support shaft 12e. A clamp member 12g is rotatably supported on the lower surface of the tip of the clamp lever 12f. The clamp member 12g is composed of a magnet, and when the clamp lever 12f descends, the clamp member 12g is attracted to the turntable 12a with the disc D sandwiched therebetween, so that the disc D is fixed. On the left side of the clamp lever 12f, the clamp release shaft 1
5 is provided and projects to the outside of the left side plate 10a.
As will be described later in detail, by moving the clamp opening shaft 15 in the vertical direction, the clamp member 12g is moved to the clamp position and the clamp release position.

As shown in FIG. 2, a pair of guide rollers 16 and 17 are provided at the front stage position of the disk drive unit 12. The pair of guide rollers 16 and 17 are provided on both side plates 10a and 1 of the chassis.
It is rotatably supported between 0b. Further, the supply roller 21 faces the lower side of the guide roller 17 in the subsequent stage. Both ends of the supply roller 21 are supported between the left end plate 20a and the right end plate 20b of the supply guide member 20. Supply guide member 20
Is the shaft installed on the left side plate 10a and the right side plate 10b of the chassis.
It is rotatably supported about 22 and has a spring 25 between a drive pin 23 provided on the left end plate 20a and a pin 24 provided on the left side plate 10a of the chassis as shown in FIG. It is linked. The supply guide member 20 reciprocates between the position shown by the solid line and the position shown by the chain line in FIG. 2, and when it is at the position shown by the solid line, the supply roller 21
Is pressed against the guide roller 17 by the force of the spring 25,
The disk D to be loaded is held. When the supply guide member 20 is at the position shown by the chain line, the supply roller 21 is separated from the guide roller 17 and the supply roller 21 is separated from the disc D. A motor M is mounted on the supply guide member 20, and a pinion 26 provided on the rotation shaft of the motor M projects outside the left end plate 20a of the supply guide member 20. As shown in FIG. 3 (omitted in FIG. 2), a driven gear 27 is integrated with the supply roller 21, and the power of the motor M is reduced by the reduction gear group 28 so that the driven gear 27 can be driven. Is transmitted to the supply roller
21 will be driven to rotate. Further supply guide member
A driven gear 29 integrated with a switching drive gear 29a is loosely inserted in the shaft 22 supporting 20 and the power of the reduction gear group 28 is also transmitted to the driven gear 29. .
The supply roller 21 that rotates together with the driven gear 27 and the switching drive gear 29a that rotates together with the driven gear 29 rotate in opposite directions.

As shown in FIG. 4, a restraint lever 30 is provided outside the left side plate 10a of the chassis. This restraint lever 30
The long holes are supported by the pins 31 and 32 provided on the left side plate 10a, so that the pins 31 and 32 are movably supported in the AB direction.
At two positions of the restraint lever 30, restraint grooves 30a and 30b provided at the bottom of the V-shaped notch are formed. One positioning shaft 14a provided on the left side of the disk drive unit 12 extends to a position facing the restraining groove 30a, and the other positioning shaft 14b extends to a position facing the restraining groove 30b. When the restraint lever 30 moves in the A direction, each positioning axis
14a and 14b are retained inside the restraint grooves 30a and 30b,
The disk drive unit 12 supported by 11a and the spring 11b comes to be fixed in a positioned state. Conversely, when the restraint lever 30 moves in the B direction, the restraint groove
The restraint of the positioning shafts 14a and 14b by 30a and 30b is released, and the disk drive unit 12 is elastically supported by the damper 11a and the spring 11b. As shown in FIG. 1, another restraint lever 35 is provided outside the right side plate 10b of the chassis. This restraint lever
35 is connected to the restraint lever 30 by an interlocking mechanism (not shown). When the restraint lever 30 moves in the direction A to restrain the positioning shafts 14a and 14b, the restraint lever 35 also moves in either direction. By moving, the positioning shafts 14c and 14d provided on the right side of the disk drive unit are simultaneously restrained.

As shown in FIG. 4, a first drive link 36 and a second drive link 39 for driving the restraint lever 30 are provided on the left side plate 10a of the chassis, and further the first drive link is provided.
A mounting detection member 45 for operating the 36 is provided. The attachment detection member 45 is provided between the restraint lever 30 and the left side plate 10a. Support hole 45 for mounting detection member 45
The c is inserted into a support shaft 41 provided on the left side plate 10a of the chassis, and a mounting detection member 45 is rotatably supported. Further, a bending piece 45a is provided on the upper left side of the attachment detecting member 45 in the drawing, and the spring 4 hung on the bending piece 45a.
The attachment detection member 45 is biased counterclockwise by 7. As shown in FIG. 6, the player body 10 has an outer casing 80.
When inserted inside, the bent piece 45a of the attachment detection member 45 is adapted to be lifted by the lock member 82 provided on the outer casing 80 (see FIG. 5 (A)). Further, the first drive link 36 is rotatably supported by the shaft 37 with respect to the support groove 45b of the attachment detecting member 45. The first drive link 36 is provided with a pin 36a and a drive pin 36b. The second drive link 39 is rotatably supported on the left side plate 10a by a support shaft 41 (the same as the support shaft of the attachment detection member 45). The groove 39b formed in the second drive link 39 is engaged with the pin 36a provided in the first drive link 36.
In addition, the second drive link 39 is provided with a hole 39a,
The hole 39a is inserted into the pin 38 provided on the restraint lever 30. The assembled state of the restraint lever 30, the first drive link 36, the second drive link 39, and the mounting detection member 45 is shown in FIGS. 5 (A) to 5 (C).

The left side plate of the chassis, as shown in FIGS. 1 and 4.
A switching lever 50 is provided on the outside of 10a. The long hole 50a of the switching lever 50 is inserted through the tip of the shaft 22 supporting the supply guide member 20, and the long groove 50b is inserted through the guide shaft 51 provided in the left side plate 10a. As a result, the switching lever 50 is supported so as to be movable in the E-G direction. Positioning pins 52 are provided on the outside of the left side plate 10a of the chassis. The positioning pin 52 is supported by an elevating lever 53 and is biased upward by a spring 54. On the other hand, the switching lever 50 is provided with a U-shaped positioning groove 55,
52 is inserted in this positioning groove 55. Switching lever
When 50 is moved in the E direction, the positioning pin 52 is elastically pressed into the end 55a of the positioning groove 55 by the force of the spring 54, and conversely, when the switching lever 50 is moved in the G direction, the positioning pin 52 is the other side of the positioning groove 55. It is suppressed by the end 55b of the. Due to this elastic force, when the switching lever 50 moves in each of the E-G directions, the switching lever 50 is positioned so as not to play.

The switching lever 50 has two crank-shaped guide grooves 56.
And 57 and the guide hypotenuse 58 are formed. A drive pin 23 provided on the left end plate 20a of the supply guide member 20.
Is inserted in the guide groove 56. Also, the restraint lever 30
The drive pin 36b provided on the first drive link 36 for driving the motor is inserted into the guide groove 57. Further, the clamp release shaft 15 provided on the clamp lever 12f of the disk drive unit 12 extends to a position facing the guide oblique side 58.

A drive rack 60 is provided on the inner surface of the switching lever 50, that is, the surface facing the chassis. The drive rack 60 is provided slidably with respect to the switching lever 50 through an elongated hole 60a. The drive rack 60 is pushed in the G direction by a trigger mechanism (not shown) to cause the switching drive gear 29.
When meshed with a, the switching lever 50 is driven in the EG direction together with the drive rack 60 by the rotational force of the switching drive gear 29.

Next, the operation will be described.

5 (A) and 5 (B) show the case where the player main body 10 is inserted into the outer casing 80 shown in FIG.
At this time, the bent piece 45a of the attachment detection member 45 is not
The lock member 82 provided at the upper part lifts the mount member 45 against the spring 47, and the attachment detecting member 45 is rotated clockwise about the support shaft 41. Therefore, the shaft 37 engaged with the mounting detection member 45 is maintained at the position moved to the lower side.

In addition, when the disc D is not loaded, the fifth disc
As shown in (A), the switching lever 50 is moving in the E direction. At this time, the drive pin 23 is lifted by the guide groove 56 of the switching lever 50, the supply guide member 20 is rotated clockwise about the shaft 22, and the supply roller 21 provided in the supply guide member 20 is rotated. Is pressed against the guide roller 17 (see FIG. 2) by the force of the spring 25. Further, the drive pin 36b is pushed down by the guide groove 57 provided in the switching lever 50, and the first drive link 3
6 is rotated clockwise about a shaft 37 engaged with the mounting detection member 45. Further, the second drive link 39 connected by the first drive link 36 and the pin 36a is driven in the counterclockwise direction, and further, the restraint lever 30 connected by the second drive link 39 and the pin 38.
Are being driven in the A direction. As a result, the positioning shafts 14a and 14b are constrained by the constraining grooves 30a and 30b of the constraining lever 30. Similarly, the positioning shafts 14c and 14d are similarly restrained by a restraining lever 35 (see FIG. 1) provided on the right side plate 10b of the chassis. As a result, the disk drive unit 12 supported by the damper 11a and the spring 11b is positioned and fixed to the chassis. Further, the clamp release shaft 15 is lifted by the guide oblique side 58 formed on the switching lever 50, whereby the clamp lever 12f of the disk drive unit 12 is lifted and the clamp member 12g is separated from the turntable 12a. .

FIG. 2 shows the inside of the chassis when the disk D is not loaded. In this state, the disc D is inserted by pushing the door 70 from the disc insertion opening. When the insertion of the disk D is detected, the motor M is started.

When the motor M is started, power is transmitted from the pinion 26 shown in FIG. 3 to the driven gear 27 via the reduction gear group 28, and the supply roller 21 is driven counterclockwise. Therefore, the disk D is sandwiched between the rotating supply roller 21 and the guide roller 17 and is fed toward the disk drive unit 12. The power of the motor M is also transmitted to the driven gear 29, and the switching drive gear 29a is driven in the clockwise direction. However, in the state of FIG. 5 (A), the teeth of the drive rack 60 are disengaged from the switching drive gear 29a, so that power is not transmitted from the switching drive gear 29a to the drive rack 60 at this time.

When the supply roller 21 detects that the disc D is inserted into the disc drive unit 12, the drive rack 60 is driven in the G direction by a trigger mechanism (not shown),
The teeth of the drive rack 60 come into mesh with the switching drive gear 29a. Since the switching drive shaft 29a rotates clockwise, the switching gear 50 is driven in the G direction together with the drive rack 60.

FIG. 5 (B) shows the state where the switching lever 50 is completely moved in the G direction. At this time, the drive pin 23 is pushed down by the guide groove 56, the supply guide member 20 is driven counterclockwise about the shaft 22, and the supply roller 21 descends and separates from the disc D. As a result, the disc D is placed on the turntable 12a of the disc drive unit 12.
When the switching lever 50 moves in the G direction, the guide hypotenuse 58
Is disengaged from the clamp opening shaft 15, the clamp lever 12f is lowered together with the clamp opening shaft 15 by the force of the spring, etc., and the disc D is held on the turntable 12a by the clamp member 12g. Furthermore, the drive pin 36b is lifted by the guide groove 57, and the first drive link 36 is driven counterclockwise about the shaft 37 engaged with the attachment detection member 75. As a result, the second drive link 39 is driven in the clockwise direction, and the restraint lever 30 connected to the second drive link 39 is driven in the B direction. Therefore, the restraint grooves 30a and 30b of the restraint lever 30 are separated from the positioning shafts 14a and 14b. Further, the restraint lever 35 provided on the right side plate 10b of the chassis is also driven in association with the restraint to the positioning shafts 14c and 14d. This allows the disk drive unit
12 is in a state of being elastically supported by the damper 11a and the spring 11b.

With the above, information can be regenerated and the turntable
The disk D is rotationally driven by 12a, and the pickup 1
2c starts reading information. In addition, external vibration such as vehicle vibration when used as a car audio is absorbed by the damper 11a and the spring 11b, and the influence on the pickup 12c and the like is reduced.

As shown in FIG. 6, the player main body 10 is used by being mounted in the outer casing 80, and when the disc D is not loaded, the state shown in FIG. 5 (A) is obtained, and the disc D is loaded. At times, the state shown in FIG.

On the other hand, in FIG. 5 (C), the player body 10 has the outer casing 80 in the state of FIG. 5 (B) in which the disc D is loaded.
It shows the case of being pulled out from. When the player main body 10 is pulled out, the bent piece 45a of the mounting detection member 45 is separated from the lock member 82, and the mounting detection member 45 is rotated counterclockwise about the support shaft 41 by the force of the spring 47. Therefore, the shaft 37 of the first drive link 36 is lifted, and the first drive link 36 is rotated clockwise about the drive pin 36b. So the second drive link
39 is driven counterclockwise by the pin 36a, and the restraining lever 30 is driven in the A direction by the pin 38. The restraining grooves 30a and 30b of the restraining lever 30 are used to position the positioning shafts 14a and 14b.
Is restrained. Similarly, the restraint lever 35 provided on the right side plate 10b of the chassis is also driven to restrain the positioning shafts 14a and 14d. As a result, the disk drive unit in the chassis
12 is positioned and fixed. In FIG. 5 (C), since the switching lever 50 is still moving in the G direction,
The clamp lever 12f is lowered, and the mounted disc D remains clamped on the turntable 12a by the clamp member 12g. Therefore, even if the player main body is carried and carried in the state shown in FIG. 5 (C), the disc drive unit 12 and the disc D are still held, so there is no fear of damaging the disc D.

Further, as shown in FIG. 5 (A), when the player body 10 is pulled out from the outer casing 80 when the disc D is not mounted, the mounting detection member 45 moves counterclockwise by the force of the spring 47. Although it is about to rotate, the clockwise rotation of the first drive link 36 connected to the attachment detection member 45 by the shaft 37 is blocked by the stopper 46 provided on the left side plate 10b. Therefore, the attachment detecting member 45 is maintained in the posture shown in FIG. 5 (A). Therefore restraint lever
The disk drive unit 12 remains constrained by 30 so that the disk drive unit 12 does not move within the player body during carrying and carrying.

The present invention is not limited to the compact disc player, but can be applied to various disc players in which the disc drive unit is supported by the elastic member.

[Effect of device]

As described above, according to the present invention, even when the player main body is pulled out from the outer casing with the disc filled, the disc drive unit is restrained and positioned in the chassis. Therefore, even if the player main body is carried and carried thereafter, the disc drive unit does not move within the main body, and problems such as damage to the disc do not occur. INDUSTRIAL APPLICABILITY The present invention is particularly effective for a compact disc player for car audio and the like in which the player body can be pulled out.

[Brief description of drawings]

1 to 6 show an embodiment of the present invention. FIG. 1 is a plan view showing a player body of a compact disc player for car audio, and FIG. 2 is a side view showing a structure of a main part thereof. FIG. 3 is a side view showing a drive system such as a supply roller, FIG. 4 is an exploded perspective view showing a mechanism provided on a side plate of the player body, and FIGS. 5 (A) to 5 (C) are FIG. 4 is a side view showing the mechanism shown in FIG. 4 for each operation, FIG. 6 is a perspective view showing the player main body and the outer casing, and FIG. 7 is a diagram for explaining the background of the invention. It is a side view which shows the main structures of a disc player. 10 ... Player body, 10a, 10b ... Chassis side plates, 11a, 11b
... Elastic member supporting the disk drive unit, 12 ...
Disc drive unit, D ... Disc, 12a ... Turntable, 12c ... Pickup, 12f ... Clamp lever, 12
g ... Clamp member, 14 to 14d ... Positioning shaft of disk drive unit, 15 ... Clamp opening shaft, 16, 17 ... Guide roller, 20 ... Supply guide member, 21 ... Supply roller, M ... Motor for driving supply roller, 27 , 28 ... Gear group for driving supply roller, 29a ... Switching drive gear, 30 ... Restraint lever for restraining positioning shaft, 36, 39 ... Link for driving restraint lever, 4
5 ... Attachment detection member, 47 ... Spring urging the attachment detection member, 50 ... Switching lever, 80 ... Outer casing, 82 ... Lock member.

Claims (1)

[Scope of utility model registration request] 1. A disc player in which a disc drive unit having a turntable for rotationally driving the disc and a pickup facing the disc mounted on the turntable is supported by a player body via an elastic member. The player body is provided with a restraint member that restrains the disc drive unit, and a mounting detection member that is biased to drive the restraint member in a direction that restrains the disc drive unit. The outer casing into which the player is inserted is provided with a lock member for moving and maintaining the attachment detecting member in the direction opposite to the urging direction when the player main body is inserted. Player.