JPS639094A - Information reproducing device - Google Patents

Abstract

PURPOSE:To prevent vibration from being transmitted to inner mechanism parts by linking the inner surface between a placing stand and a case and/or the inner surface between a containing part and the case at prescribed intervals through a spring body. CONSTITUTION:Plural spacers 10 link, position and fix a cartridge containing part 3 and the placing stand 4 at the prescribed interval. Plural springs 20 are suspended between the inner ceiling of the cartridge containing part 3 and that of the case 1, and hold the containing part 3 in a suspending way in the case 1 together with the placing stand 4. Thus the inner ceiling between the containing part 3 and the case 1 and that between the placing stand 4 and the case 1 keep the prescribed intervals d1 and d2. The opening part 3a of the containing part 3 and a cassette insertion part 2 are held in a confronted state. Even if vibration such as impact is applied to the outside of the case 1, said parts are held in a suspended state due to the attenuation effect of the springs 20 and become free of vibration.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention particularly relates to an improvement of a vibration isolation structure in an information reproducing device such as an optical disk device.

(Prior Art) Cartridge-type information reproducing devices, such as cartridge-type optical disk devices and cartridge-type magnetic disk Hn, basically connect the disk to the bottom surface of the disk inside the cartridge case, which is taken into the case. It consists of a rotating spindle motor and an information reading optical mechanism (for optical disks) or a pickup mechanism (for magnetic disks) that is movable in the radial direction of the disk.

As shown in FIG. 3, the cartridge-type optical disk device includes a cartridge accommodating section 3 that is located inside a case 1 and communicates with a cartridge insertion opening 2 opened at one side of the case 1, and a cartridge accommodating section. U placed on the bottom of 3
, place the mounting stand 4 (i.e., the cartridge storage section 3 has the above-mentioned 1I).
A loading mechanism and a clamping mechanism are provided for taking in the cartridge case 5 inserted into the I-port opening 2 and clamping the optical disc 6 inside the cartridge case 5 by /V.

Furthermore, a spindle motor 8 that rotatably connects the positioned optical disc 6 via a turntable 7 and an information reading optical head 9 that is movable along the radial direction of the optical disc 6 are arranged on the mounting table 4. has been done.

In this type of cartridge type optical disk device, since the optical disk 6 is inserted into and removed from the device while being housed in the cartridge case 5, there is no familiarity with the adhesion of contamination and playback failures caused by this.

(Problems to be Solved by the Invention) By the way, in this type of optical disk device, as the information density of the optical disk increases, the device becomes smaller and smaller.
Making it thinner is an issue.

However, especially in the case of a cartridge type, there is a limit to how thin the cartridge case can be made in consideration of ease of sucking.

Therefore, in order to make the device thinner, the thickness of the case 1 can be made thinner, but the cartridge storage section 3 inside the case 1 can be made thinner. Since the thickness of the mounting table 4 cannot be reduced unnecessarily, the gap between the case 1 and these is necessarily narrowed, and they are fixed to each other using spacers 10 as shown in the figure, with the relative spacing maintained accurately. Was.

Note that when the case is made thinner in this way, the vibrations applied to the case 1 cause the internal mechanical parts to vibrate, which becomes a major factor that is undesirable for data reproduction.

Therefore, in the past, a vibration isolator 12 containing a built-in spring 11 was fixed to the bottom of the case 1 to isolate the case 1 from the installation surface.

However, with this structure, vibration cannot be isolated if other objects are in contact with the outer surface of the case 1, and the installation location is limited, and there is no point in reducing the height of the vibration isolator 12. .

Further, as is well known, in an optical disc device such as a CD player, other devices such as an amblifier are used.

Since it is to be incorporated into a component such as a cassette deck, simply rinsing it separately from the installation surface has no meaning in terms of vibration isolation when it is incorporated.

This invention solves the above problems by isolating the case and its internal mechanism on the vibration plane.
The purpose is to narrow the gap between the internal structure and the case, and to prevent the internal grooves from being affected by vibrations applied to the case.

[Structure of the Invention] (Means for Solving the Problems) In order to achieve the above object, the present invention connects the mounting table and the storage section via a spacer, and also connects the lii table and the case and/or the storage section. It is characterized in that the inner surface of the case and the inner surface of the case are connected to each other via a spring body with a predetermined distance therebetween.

(Function) Even if vibration is applied to the outside of the case, the vibration will not be transmitted to internal mechanical parts due to the gentle action of the spring body.

(Example) Hereinafter, an example of this invention will be described in detail using the drawings.

FIG. 1 is a cross-sectional view showing a cartridge type optical disk device according to the first tM array of the present invention.

J3, in the figures, the same parts as the conventional ones are given the same reference numerals and explained.

That is, this optical disk device is located inside the case 1 as in the conventional case, and has a cartridge storage section 3 that communicates with the cartridge insertion opening 2 opened on one side of the case 1, and a cartridge storage section 3 disposed on the bottom surface of the cartridge storage section 3. M, the mounting base 4 is opened, the cartridge case 5 inserted into the insertion slot 2 is taken into the cartridge storage section 3, and a loading line is installed to clamp the information recording medium, that is, the optical disk 6 inside the cartridge case 5. Grooves and clamps (one structure is provided).

Further, on the mounting table 4, a spindle motor 8 rotatably connects the positioned optical disc 6 via a turntable 7, and an information reading structure, that is, an optical head 9, which is movable along the radial direction of the optical disc 6. A near motor 9' is arranged to move this optical head in the radial direction.

The cartridge storage section 3 and the mounting table 11 are connected by a plurality of spacers 10, and the two are positioned and fixed at a predetermined interval.

Further, a plurality of spring bodies 20 are suspended between the cartridge storage section 3 and the inner ceiling surface of the case 1, and these spring bodies 20 allow
The storage section 3 and the mounting table 4 are held in a suspended state within the case 1.

As a result, a predetermined distance d, d2 is maintained between the storage section 3 and the inner ceiling surface of the case 1, and between the mounting table 4 and the inner bottom surface of the case 1, and between the opening 3a of the storage section 3 and the cassette insertion slot. 2 are held facing each other.

In the above configuration, even if a shock or other disturbance is applied to the outside of the case 1, the damping effect of the spring body 20 allows both the storage section 3 and the mounting table 4 to be held stationary in a suspended state and isolated from vibrations. become.

Also, although there is no contact between the cassette insertion slot 2 and the opening 3a, this is due to the structure that can withstand rough handling, which is an advantage of the cartridge, so that the cartridge case 5 can be loaded even if the two openings do not match.・No effect on loading operation.

Next, FIG. 2 is a sectional view showing a second embodiment of the present invention.

In the illustrated embodiment, a plurality of spring bodies 21 are inserted between the mounting table 4 and the inner bottom surface of the case 1, so that the mounting table 4 and the storage section 3 float while maintaining a predetermined gap d, d2 between them and the case 1. It is kept in a dead state.

In this embodiment as well, due to the damping effect of the spring body 21 as described above, the mounting table 4 and the storage section 3 are held stationary even when external imaging is applied, and are isolated from the imaging.

Note that whether to maintain the suspended state or to maintain the floating state can be selected based on the damping effect according to the spring constant of the spring body 20, 21.

Also, 1st. The storage part 3 is combined with the spring body 2 of the second embodiment.
Of course, the mounting table 4 may be connected to the case 1 by the spring body 21 in step o.

Furthermore, when inserting a cartridge, the storage section 3 and the mounting table 4 vibrate, but if you take into account the damping time and interrupt the information access operation after a certain period of time has passed after inserting the cartridge, you can reduce the influence of the self-imaging. Can be removed.

Further, in each of the embodiments, the present invention is applied to a cartridge type optical disk device, but the present invention is not limited to this.
, applicable to body regeneration devices in general.

(Effects of the Invention) As described in detail in each of the embodiments above, according to the information reproducing device according to the present invention, even if a photograph is applied to the outside of the case, vibrations are transmitted to the internal mechanical components due to the buffering action of the spring body. There is no.

Furthermore, even if the gap between the case and the internal mechanical parts is made small, since these are completely isolated from the case at the imaging surface, it is possible to achieve a thinner design, and the problem of vibration isolation due to the thinner design can be easily solved.

[Brief explanation of drawings]

FIG. 1 is a cross-sectional view showing a cartridge-type optical disk device according to a first embodiment of the present invention, FIG. 2 is a cross-sectional view showing the second embodiment, and FIG. 3 is a cross-sectional view showing a conventional cartridge-type optical disk device. It is a diagram. 1... Case 2... Cartridge insertion slot 3... Cartridge storage section 4... M, mounting stand 5... Cartridge case 6... Optical disk (information recording medium) 8... Spindle motor 9 ...Information reading mechanism (optical head) 10...Spacer 20.21...Spring body

Claims (1)

[Claims] a spindle motor that is inside the case and is coupled to the lower surface of the information recording medium taken in from the insertion opening of the case; an information reading mechanism that is movable in the radial direction of the information recording medium; and one end. It consists of a recording medium storage section which opens into the insertion slot, and a mounting table on the underside of which the spindle motor and information reading mechanism are installed, and a spacer is provided between the mounting table and the storage section. What is claimed is: 1. An information reproducing device characterized in that the mounting table and the case, and/or the storage section and the inner surface of the case are connected to each other via a spring body with a predetermined distance between them.