JPH08203259A - Damper for supporting drive chassis of disk player - Google Patents

Abstract

PURPOSE: To prevent the generation of reading errors even when a player main body is laid horizontally or stood vertically. CONSTITUTION: The drive chassis-supporting damper 10 is set between a disk- supporting tray 2 adapted to project/retreat to a player main body 1 of a disk player and a drive mechanism-supporting drive chassis 6 disposed on the rear side of the tray 2. The damper 10 is provided with a damper member 10a which supports the drive chassis 6 so that the drive chassis 6 can oscillate up and down in the state where the main body 1 is laid down horizontally, and a damper member 10b which supports the drive chassis 6 so that the drive chassis can oscillate up and down in the state where the main body 1 is stood upright.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a damper for supporting a drive chassis of a compact disc (hereinafter referred to as "disc") disc player called a CD.
The disc player can be used both horizontally and vertically.

[0002]

2. Description of the Related Art Conventionally, an example of a disc player is shown in FIGS. This is because a plurality of cylindrical projecting portions 2a are integrally projectingly provided at appropriate positions on the back surface of a disc supporting tray 2 which is provided in the player main body 1 so as to be able to move in and out, and a cylindrical rubber damper 3 is provided outside each projecting portion 2a. The damper 3 is fitted between the washers 4 and the tray 2 by screwing the stopper bolts 5 into the holes of the respective protrusions 2a through the washers 4, and the small diameter portion 3a formed on the outer peripheral surface of the damper 3 is held.
The drive chassis 6 is supported by the tray 2 via each damper 3 by removably fitting the recess 6a formed in the drive chassis 6, and the drive mechanism such as the spindle motor 7 is mounted on the drive chassis 6. As shown in FIG. 8, the tray 2 is projected from the player main body 1, the disc D is set on the turntable 8 fixed to the rotation shaft of the spindle motor 7, and then the tray 2 is retracted into the player main body 1. Let
By pressing the start button, the drive mechanism is activated, the spindle motor 7 is rotationally driven to rotate the disc D, and at the same time, the optical pickup (not shown) is moved in the radial direction of the disc D to move it to the disc D. The recorded information is read, and the vibration of the drive chassis 6 generated by operating the drive mechanism is caused by the expansion and contraction of each damper 3 along the axial direction of the protrusion 2a. It absorbs so that reading error does not occur.

[0003]

SUMMARY OF THE INVENTION In the above conventional configuration,
As shown by the solid line in FIG. 6, when the player main body 1 is placed horizontally, the vibrations of the drive chassis 6 generated by operating the drive mechanism are absorbed by the dampers 3 to prevent a read error. However, as shown by the phantom lines in FIG. 6, when the player main body 1 is placed vertically due to the installation space, each damper 3 can absorb the vibration of the drive chassis 6 generated by operating the drive mechanism. It is difficult and may cause a read error.

In view of the above-mentioned conventional drawbacks, the present invention provides a drive chassis support damper for a disc player, which prevents a reading error from occurring regardless of whether the player body is placed horizontally or vertically. It is intended to be provided.

[0005]

In order to achieve the above object, the invention according to claim 1 is such that a disc supporting tray provided on a player main body of a disc player so as to be able to move in and out, and a rear side of the tray. A drive chassis supporting damper provided between the drive mechanism supporting drive chassis and a horizontal mounting damper member for supporting the drive chassis so as to be vertically swingable in a state where the player main body is horizontally mounted horizontally. And a vertical mounting damper member for supporting the drive chassis so as to be vertically swingable in a state where the player main body is mounted vertically.

According to a second aspect of the present invention, in the first aspect of the invention, the laterally placed damper member and the vertically placed damper member are integrally formed with each other.

According to a third aspect of the present invention, the laterally placed damper member is externally fitted to a protruding portion provided on the back surface of the tray, and the stopper member and the tray are attached to the tip of the protruding portion. It is characterized in that it is sandwiched, and a recess formed in the drive chassis is detachably fitted to a small diameter portion formed on the outer peripheral surface thereof.

The invention according to claim 4 is the invention according to claim 2 or 3.
In the invention described above, the damper member for vertical installation is an elastically deformable damper body integrally formed with the damper member for horizontal installation, and a projection integrally provided on the rear surface of the tray and projecting integrally on the damper body. And an engaging portion that detachably engages with a recess formed in the portion.

[0009]

In the invention of claim 1, after the disc is set on the tray protruding from the player body, the tray is retracted into the player body, and the start button is pushed to place the disc on the back side of the tray. The drive mechanism supported by the drive chassis operates,
While the disc is rotated, the optical pickup is moved in the radial direction of the disc so that the information recorded on the disc can be read by the optical pickup.

In this case, when the player main body is horizontally placed horizontally, the drive chassis is supported by the horizontal placement damper member so as to be vertically swingable, and when the player main body is placed vertically. Since the drive chassis is swingably supported in the vertical direction by the vertical mounting damper member, in any case, the vibration of the drive chassis generated by operating the drive mechanism can be applied to the horizontal mounting damper member or the vertical mounting member. It can be absorbed by the damper member for use to prevent a reading error.

According to the second aspect of the present invention, since the laterally placed damper member and the vertically placed damper member are integrally formed with each other, both members can be molded by one die, and the manufacturing cost is reduced. It's cheap.

According to the third aspect of the present invention, after the laterally mounted damper member is externally fitted to the protruding portion provided on the back surface of the tray, the stopper member is attached to the tip of the protruding portion. The horizontal mounting damper member can be easily attached to the back surface of the tray, and by simply fitting the recess formed in the drive chassis into the small diameter portion formed on the outer peripheral surface of the horizontal mounting damper member, the drive chassis can be mounted. Can be easily attached to the tray via the horizontal mounting damper member.

According to the fourth aspect of the present invention, the vertically placed damper member includes a damper body integrally formed with the horizontally placed damper member, and an engaging portion integrally projectingly provided on the damper body. Therefore, as described above, by installing the damper member for horizontal placement on the tray and engaging the engaging portion with the recess formed in the protrusion integrally projected on the back surface of the tray, the damper for vertical placement can be obtained. The member can be easily attached to the tray.

[0014]

Embodiments of the present invention will be described below with reference to the drawings. 4 and 5 show a state in which a disk player using a rubber drive chassis supporting damper 10 according to an embodiment of the present invention is vertically installed, and the damper 10 is a horizontal installing damper member 10a. And a vertical damper member 10b.

The horizontal damper member 10a is made of an elastic material such as rubber, and as shown in FIGS. 1 to 3, is substantially the same as the conventional damper 3 described at the beginning (see FIGS. 6 to 8). The protrusions 2 are formed into a cylindrical shape and are fitted onto a plurality of cylindrical protrusions 2a integrally formed on the back surface of the tray 2 so as to integrally project.
A stopper bolt (stopper member) 5 is screwed into the hole of a through a washer 4 to be sandwiched between the washer 4 and the tray 2, and the drive chassis is attached to the small diameter portion 11 formed on the outer peripheral surface of the horizontal mounting damper member 10a. By removably fitting the keyhole-shaped recess 6a formed in 6,
The drive chassis 6 is a damper member 10 for each horizontal placement.
It is attached to the tray 2 via a.

The vertical damper member 10b is shown in FIG.
As shown in FIG. 3, a rectangular damper main body 13 integrally formed on the central portion of the outer peripheral surface of the horizontal mounting damper member 10a.
And a pair of protrusion-like engaging portions 14, 14 which are integrally projectingly provided on the damper body 13 at predetermined intervals and extend in a direction orthogonal to the tray 9 withdrawing / retracting direction. Recessed groove 1 communicating with the recess 6a on the outer peripheral surface
5 is formed, and when the recess 6a of the drive chassis 6 is engaged with the small diameter portion 11, the engagement is not hindered, and the through hole 16 is provided in the central portion of the damper main body 13. The damper body 13 is elastically deformable. Further, a substantially U-shaped protruding portion 2b is provided at an outer position adjacent to each protruding portion 2a of the tray 2, and a central flat plate portion of each protruding portion 2b faces the engaging portions 14 and 14. Keyhole-shaped recesses 17, 17 are formed, and each recess 1
By engaging the engaging portions 14 and 14 with the engaging portions 7 and 17, the large-diameter head 14a at the tip of the engaging portions 14 and 14,
14a and the damper body 13 sandwich the protruding portion 2b,
The vertically placed damper member 10b is detachably attached to the tray 2. In addition, the inlet portions of the recesses 17, 17 are formed on the tapered surface 17a that expands outward,
The engaging portions 14, 14 can be easily engaged with the respective recesses 17, 17.

In the above structure, as shown in FIGS. 4 and 5, after the disc D is set on the tray 2 protruding from the player body 1, the tray 2 is placed on the player body 1.
By retracting the inside and pressing the start button, the drive mechanism supported by the drive chassis 6 arranged on the back side of the tray 2 operates, and the spindle motor 7 is rotationally driven to rotate the disk D, By moving the optical pickup in the radial direction of the disc D, the information recorded on the disc D can be read by the optical pickup.

In this case, since the player main body 1 is vertically installed, the vertical vibration of the drive chassis 6 generated by operating the drive mechanism elastically deforms the damper main body 13 of the vertical installation damper member 10b, and It can absorb vibrations and prevent read errors.

Further, as shown by the phantom line in FIG. 6, when the player main body 1 is placed horizontally, the vertical vibration of the drive chassis 6 generated by operating the drive mechanism causes the damper member 10a for horizontal placement to elastically move. Transform,
It is possible to absorb the vibration and prevent a read error.

In the above embodiment, the damper member 1 for horizontal placement is used.
0a and the vertical damper member 10b are integrally formed, but both members 10a and 10b may be separately formed. Further, although the pair of engaging portions 14 of the vertically placed damper member 10b are provided, one or three or more engaging portions 14 may be provided.

[0021]

According to the first aspect of the present invention, when the player body is horizontally placed horizontally, the drive chassis is supported by the horizontally placed damper member so as to be vertically swingable, and the player body is also provided. If placed vertically,
Since the drive chassis is vertically swingably supported by the vertically mounted damper member, in either case, the vibration of the drive chassis generated by operating the drive mechanism is absorbed by one of the damper members. Therefore, a read error can be prevented.

According to the second aspect of the present invention, the horizontal mounting damper member and the vertical mounting damper member can be molded by one mold, and the manufacturing cost is low.

According to the third aspect of the present invention, after the laterally placed damper member is externally fitted to the protruding portion provided on the rear surface of the tray, the stopper member is attached to the tip of the protruding portion. The horizontal mounting damper member can be easily attached to the back surface of the tray, and by simply fitting the recess formed in the drive chassis into the small diameter portion formed on the outer peripheral surface of the horizontal mounting damper member, the drive chassis can be mounted. Can be easily attached to the tray via the horizontal mounting damper member.

According to the fourth aspect of the present invention, the vertical mounting damper member includes a damper main body integrally formed with the horizontal mounting damper member and an engaging portion integrally projecting from the damper main body. Therefore, as described above, by installing the damper member for horizontal placement on the tray and engaging the engaging portion with the recess formed in the protrusion integrally projected on the back surface of the tray, the damper for vertical placement can be obtained. The member can be easily attached to the tray.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a disk player using a drive chassis supporting damper according to an embodiment of the present invention (a view taken along the line AA in FIG. 4).

FIG. 2 is an enlarged cross-sectional view of the same main part.

FIG. 3 is an exploded perspective view of the main part.

FIG. 4 is a side view of the disc player.

FIG. 5 is a perspective view of the disc player.

FIG. 6 is a cross-sectional view showing a conventional example (a view taken along the line BB of FIG. 8).
Is.

FIG. 7 is an enlarged cross-sectional view of the same main part.

FIG. 8 is a plan view of the same.

[Explanation of symbols]

 1 Player Main Body 2 Tray 2a Projection 2b Projection 5 Stopper Bolt (Stopper Member) 6 Drive Chassis 6a Recess 10 Damper 10a Horizontal Mounting Damper 10b Vertical Mounting Damper 11 Small Diameter 13 Damper Main 14 Engagement 17 Recess

Claims (4)

[Claims] 1. A drive chassis supporting damper provided between a disc supporting tray provided in a player main body of a disc player so as to be able to move in and out, and a drive mechanism supporting drive chassis arranged on the back side of the tray. A horizontal damper for supporting the drive chassis so that the player chassis can be vertically swung with the player body horizontally placed, and a drive chassis that can be vertically swung with the player body vertically placed. A damper for supporting a drive chassis of a disk player, which is provided with a vertical damper member for supporting. 2. The damper for supporting a drive chassis of a disc player according to claim 1, wherein the damper member for horizontal mounting and the damper member for vertical mounting are integrally formed with each other. 3. The laterally mounted damper member is externally fitted to a protruding portion provided on the back surface of the tray, and is clamped by a stopper member attached to the tip of the protruding portion and the tray. The drive chassis supporting damper for a disk player according to claim 1 or 2, wherein a recess formed in the drive chassis is detachably fitted to the small diameter portion formed in (1). 4. The vertical mounting damper member includes an elastically deformable damper main body integrally formed with the horizontal mounting damper member, and a projection integrally formed on the rear surface of the tray and integrally projecting on the damper main body. The drive chassis support damper for a disk player according to claim 2 or 3, further comprising: an engaging portion that detachably engages with a recess formed in the portion.