JP2981450B2 - In-vehicle disk player - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an in-vehicle disk player in which a reproduction unit chassis is supported in a floating state via an attenuation mechanism, and more particularly to a locked position of the reproduction unit chassis in a state where a disk is loaded or unloaded. .

[0002]

2. Description of the Related Art An example of a conventional in-vehicle disk player in which a reproducing unit chassis is supported by a main body chassis in a floating state via an attenuation mechanism will be described with reference to FIG. FIG. 5 (a)
Shows the reproduction state of the disk 6, and FIG. 5B shows the state of loading or unloading of the disk 6.

A reproducing unit chassis 1 shown in FIG. 1 is a chassis for holding a pickup 1c and a disk motor 1a. The turntable 1b fixed to the rotating shaft of the disk motor 1a holds the disk 6 and holds the disk motor 1a.
Drives the disk 6 to rotate. The pickup 1c is sent in the disk radial direction by a pickup feeding device (not shown) supported by the reproduction unit chassis 1. As described above, the reproduction unit chassis 1 holds a mechanism necessary for reproducing a disk. This playback unit chassis 1 is designed to prevent vibrations from being transmitted from outside.
It is supported on the chassis side face 5 via a damping mechanism 2 composed of a coil spring and a damper.

In the reproducing state shown in FIG. 5A, the reproducing unit chassis 1 is supported by the damping mechanism 2 in a floating state, and therefore moves relatively to the main body chassis. The playback unit chassis 1 is designed to allow this relative movement sufficiently.
Are arranged so that spaces A and B are secured above and below the body chassis in a natural state, respectively.

When loading or unloading the disk 6, the reproducing unit chassis 1 is fixed at the neutral position of the damping mechanism 2 by the lock mechanism 3 as shown in FIG. Projection supported on the unit chassis 1, for example, the turntable 1
The disc insertion / ejection mechanism 4 is lifted to insert or eject the disc 6 so as not to be hindered by b or the like.

[0006]

In the above-mentioned conventional on-vehicle disk player, the reproducing unit chassis 1 is fixed at the neutral position of the damping mechanism 2 while the disk 6 is being loaded or unloaded. Therefore, the space B on the lower side of the reproduction unit chassis 1 is wasted space, and the thickness of the disc player cannot be reduced.

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and an object thereof is to reduce the thickness of a disc by eliminating useless space in loading or unloading of a disc. An object of the present invention is to provide an in-vehicle disk player.

[0008]

According to the present invention, there is provided an on-vehicle disc player in which a reproducing unit chassis is supported by a main body chassis in a floating state via a damping mechanism. When shifting to the state, the playback unit chassis and the disc insertion / ejection mechanism are moved from the floating position to the turntable side in the axial direction of the clamper and the turntable with respect to the main body chassis, and then the playback unit chassis is moved. Only the main body chassis is locked, and then the disc insertion / ejection mechanism is moved toward the clamper in the axial direction.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An on-board disk player according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 shows a schematic configuration of an on-vehicle disk player according to a first embodiment of the present invention. FIG. 1A shows a reproduction state of the disk 6,
FIG. 1C shows the loading or unloading state of the disk 6. FIG. 1B shows a state in which the reproduction state is in the middle of shifting to the loading or unloading state.

A reproduction unit chassis 1 shown in FIG. 1 is a chassis holding a pickup 1c and a disk motor 1a, and holds a mechanism necessary for reproducing a disk 6 as described in the conventional example. The reproduction unit chassis 1 is supported on the chassis side surface 5 via a damping mechanism 2 including a coil spring and a damper so that vibrations are not transmitted from the outside.

In the reproducing state shown in FIG. 1A, the reproducing unit chassis 1 is supported by the damping mechanism 2 in a floating state, and therefore moves relatively to the main body chassis. The playback unit chassis 1 is designed to allow this relative movement sufficiently.
Is disposed at a substantially central position with respect to the main body chassis in a natural state.

When loading or unloading the disk 6, the lock unit 3 pushes down the reproducing unit chassis 1 as shown in FIG. 1B, and further inserts and ejects the disk as shown in FIG. 1C. Mechanism 4
To insert or eject the disk 6.

Locking of the reproduction unit chassis 1 and lifting and lowering of the disc insertion / ejection mechanism 4 are performed by a lock mechanism 3 as shown in FIG. The lock mechanism 3 moves in the front and back directions on the paper of FIG. FIG. 2 shows a lock mechanism 3, a shaft 1d of the reproduction unit chassis 1, and a disc insertion / ejection mechanism 4.
3 shows a state of relative movement with respect to the axis 4a.

When shifting from the reproducing state to the loading or unloading state, the lock mechanism 3 first lowers the reproducing unit chassis 1 by pushing down the shaft 1d, and then pushes up the shaft 4a to move the disc inserting / ejecting mechanism. Lift 4. When transitioning from loading or unloading state to playback state,
The reverse operation is performed. By such an operation, the useless space shown in the conventional example in the loading or unloading state is eliminated, and the apparatus can be downsized.

FIG. 3 is a sectional view showing a schematic structure of a vehicle-mounted disk player according to a second embodiment of the present invention. FIG. 3A shows a reproduction state of the disk 6, and FIG. 3B shows a state of loading or unloading of the disk 6. In this example, the damping mechanism 2 supports the reproduction unit chassis 1 from above and below. Other configurations are the first
Since the configuration is the same as that of the embodiment, detailed description is omitted.

FIG. 4 is a sectional view showing a schematic structure of a vehicle-mounted disk player according to a third embodiment of the present invention. FIG. 4A shows a reproduction state of the disk 6, and FIG. 4B shows a state of loading or unloading of the disk 6. In this example, the lock mechanism 3 is arranged outside the side surface 5 of the chassis. The other configuration is the same as that of the second embodiment, and the detailed description is omitted.

[0017]

According to the disc player of the present invention, the disc insertion / ejection mechanism is separated from the reproducing unit chassis by utilizing the space around the reproducing unit chassis at the time of reproducing, so the dead space in the loading or unloading state. Is eliminated and the device can be downsized. In addition, the same damping mechanism as the conventional one can be used, and the damping characteristics do not deteriorate.

As described above, since the mechanism can be made thinner, a plurality of disc players can be accommodated in a space having a standard thickness for accommodating an in-vehicle disc player, or inexpensive tall electric components are used. It becomes possible.

[Brief description of the drawings]

FIG. 1 is a sectional view showing a schematic configuration of an on-vehicle disk player according to a first embodiment of the present invention.

FIG. 2 is a schematic side view showing an operation of a lock mechanism of the on-vehicle disk player.

FIG. 3 is a sectional view showing a schematic configuration of a vehicle-mounted disc player according to a second embodiment of the present invention.

FIG. 4 is a sectional view showing a schematic configuration of a vehicle-mounted disk player according to a third embodiment of the present invention.

FIG. 5 is a sectional view showing an example of a conventional in-vehicle disk player.

[Explanation of symbols]

1 playback unit chassis, 1a disk motor, 1
b Turntable 1c Pickup 2 Damping Mechanism 3 Locking Mechanism 4 Disc Inserting and Ejecting Mechanism 5 Chassis Side 6 Disc

──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Yosuke Haga 1-14-6 Dogenzaka, Shibuya-ku, Tokyo Inside Kenwood Corporation (72) Inventor Takeharu Sasada 1-14-6 Dogenzaka, Shibuya-ku, Tokyo Corporation Kenwood Corporation (56) References JP-A-4-10271 (JP, A) JP-A-6-103674 (JP, A) (58) Fields investigated (Int. Cl. ⁶ , DB name) G11B 17/04

Claims (1)

(57) [Claims] 1. An in-vehicle disc player in which a playback unit chassis is supported by a main body chassis in a floating state via an attenuation mechanism, when the playback unit shifts from a playback state to a loading or unloading state, the playback unit chassis and the disk The insertion / ejection mechanism is moved from the floating position to the turntable side in the axial direction of the clamper and the turntable with respect to the main body chassis, and then only the playback unit chassis is locked with the main body chassis. An in-vehicle disc player configured to move a discharge mechanism toward the clamper in the axial direction.