JPH0481835B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a vehicular disc playback device that is realized when a compact disc player, video disc player, etc. is mounted on a vehicle.

[Summary of the invention]

In the present invention, the chassis is supported by the reinforcing portion of the casing via the insulator.

[Conventional technology]

In compact disc players, video disc players, etc., the disc is rotated by a spindle motor and the pickup is driven in the radial direction of the disc to reproduce information. It is necessary to devise measures to ensure that it can withstand vibrations sufficiently.

[Problem that the invention seeks to solve]

Conventional devices protect the basic mechanism for reproducing information from disks from vibrations, which not only has a complicated structure, but also reduces space utilization efficiency.
There was a drawback to increasing the size.

[Means for solving problems]

The present invention provides a disk playback device for a vehicle, which includes: a spindle motor that rotates the disk; a chassis that supports a pick-up that plays back information from the disk; and a slider motor that drives the pick-up in the radial direction of the disk; and a casing that houses the chassis. The present invention is characterized by comprising a reinforcing part that reinforces the casing, and an insulator that is fixed to the reinforcing part and supports the chassis.

[Effect]

The casing is reinforced by a reinforcing section. An insulator is fixed to this reinforcing portion, and the chassis is supported by the insulator.

〔Example〕

FIGS. 1 to 3 show the configuration of a vehicle disc reproducing apparatus according to the present invention. 1 to 3 show the structure of the printed circuit board support structure of the present invention. In the figure, reference numeral 1 denotes a casing made of metal or the like, and the casing 1 is reinforced by a plurality of (four in the embodiment) reinforcing parts 2 added to its corners. The reinforcing part 2 includes a fixing plate 3 fixed to the side wall of the housing 1 by spot welding or the like, a side wall 4, and a top plate 5.
These and the side wall and bottom surface of the housing 1 form a substantially sealed space. A chamfered portion 6 is formed on a portion of the side wall 4 to widen the space inside the housing 1.

11 is an insulator for damping vibration;
It is fixed to the top plate 5 of the reinforcing part 2 with screws 12. A chassis 13 supports a mechanical assembly consisting of a spindle motor 14 for rotating the disk 10, a pick-up 15 for reproducing information from the disk 10, and a slider motor 16 for driving the pick-up 15 in the disk radial direction. . Reference numerals 17 and 18 are printed circuit boards in which electric circuits for controlling these mechanisms are incorporated, and the ends located on the center side of the housing 1 are connected to the spindle motor 14 by screws, etc. are fixed to the mechanical chassis 23, respectively. Since the chassis 13 that further supports the mechanical chassis 23 that supports these mechanisms (including the printed circuit boards 17 and 18) is supported by the insulator 11, the structure is such that vibrations from the housing 1 are not easily transmitted to these mechanisms. There is.

21 is a balance weight whose one end is fixed relatively to the outer periphery of the chassis 13, and the chassis 1 supports each mechanism (including the printed circuit boards 17 and 18).
The required number of insulators 11 (three in the embodiment) are provided so that the mass of 3 is equally supported by the four insulators 11. The balance weight 21 is provided so as to protrude below the chassis 13, and its lower end is in contact with the printed circuit boards 17 and 18 via a spacer 22 inserted as required. That is, the printed circuit boards 17 and 18 have their inner ends (center side of the housing 1) fixed to the spindle motor 14 or the mechanical chassis 23, so that they have a so-called cantilevered structure. The balance weight 21 comes into contact with the outer ends of the printed circuit boards 17 and 18 via the spacer 22, making this cantilevered structure into a double-sided structure. This prevents the printed circuit boards 17 and 18 from vibrating and being damaged when vibrations are transmitted to the chassis 13. Printed circuit board 1
7 and 18 may be fixed to the balance weight 21 with screws or the like in order to ensure their support, but this will result in poor workability when installing or removing them, so it is only necessary to simply contact and support them. You can also use it as

Mechanisms such as a spindle motor 14, a pick-up 15, a slider motor 16, and a printed circuit board 17,
18 Furthermore, all balance weights 21 are arranged below the chassis 13. This allows the center of gravity of the mechanism supported by the insulator 11 to be lowered, which is effective in preventing vibration. The heights of the insulator 11 and the reinforcing part 2 are set so that these mechanisms can be accommodated in the housing 1.

〔effect〕

As described above, the present invention provides a disc playback device for a vehicle, including a spindle motor for rotating a disc,
a chassis that supports a pick-up that plays back information from the disk and a slider motor that drives the pick-up in the radial direction of the disk; a casing that houses the chassis; a reinforcing part that reinforces the casing; Since the supporting insulator is provided, it is possible to obtain sufficient strength against vibrations, and also to effectively utilize a narrow space to effectively prevent vibrations of the basic mechanism.

[Brief explanation of drawings]

FIG. 1 is a plan view of the vehicle disk reproducing apparatus of the present invention, FIG. 2 is a front view thereof, and FIG. 3 is a side view thereof. 1... Housing, 2... Reinforcement part, 3... Fixing plate, 4
... Side wall, 5 ... Top plate, 6 ... Chamfered part, 10
...Disk, 11...Insulator, 12...
... Screw, 13 ... Chassis, 14 ... Spindle motor, 15 ... Pickup, 16 ... Slider motor, 17, 18 ... Printed circuit board, 21 ...
...Balance weight, 22...Spacer, 23...
... Mechashashi.

Claims (1)

[Claims] 1. A chassis that supports a spindle motor that rotates the disk, a pick-up that reproduces information from the disk, and a slider motor that drives the pick-up in the radial direction of the disk, a casing that houses the chassis, and a case that reinforces the casing. A reinforcement part that
A vehicular disk reproducing device comprising: an insulator fixed to the reinforcing portion and supporting the chassis.