JP2002184069A - Disk-clamping device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a disk-clamping device capable of easily controlling pressure to be ununiformly applied to elastic members using simple construction and preventing plays and deformation of a disk. SOLUTION: The disk-clamping device, constituted of holding a disk 1 stored in a body 10 by a clamper 50 and a turntable 32, is provided with a floating chassis 30 supported in the body 10 in a floating state and capable of lifting the turntable 32 loaded on it in the direction of the clamper 50, plural lactic members 40 for supporting the chassis 30 in the floating state, a lifting member 20 for turnably supporting a shaft 20a arranged on one side in the body 10, supporting the one side of the chassis 30 on the other end side via the elastic members 40 and lifting the chassis 30 by turning, and an auxiliary step 20b for applying uniform pressure to the members 40 by projecting from the surface of the member 20, up to a prescribed height in order to prevent ununiform pressure from being applied to the supported elastic members 40, because of the inclination of the surface of the member 20 due to turning.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disk clamp device, and more particularly, to a disk clamp device, in which a disk on which various information is recorded is accommodated in a main body, and a clamper disposed at an upper portion and a turntable which moves up and down at a lower portion. The present invention relates to a disk clamp device for holding a disk.

[0002]

2. Description of the Related Art Conventionally, for example, C which records various information
In the case where a disc such as D or DVD is stored in a main body and at least recording or reproduction is performed, a disc clamp device that holds the disc between a turntable and a clamper in the main body is well known. This conventional disc clamping device, for example, mounts a turntable on a floating chassis supported in a floating state in a main body, and raises and lowers the floating chassis, so that a disc conveyed between the turntable and a clamper is moved. It has a structure to hold it. FIG.
FIG. 9 is a view showing a conventional disk clamp device for holding the disk 1 by moving the turntable 132 up and down in this way. FIG. 7 is an exploded perspective view showing the structure of the portion E shown in FIG. FIG. 8 is an operation explanatory view showing an operation of clamping the disk 1 by the disk clamping device shown in FIG. 6, and FIG. 8A shows a state before the clamping.
(B) shows the state of being pinched. FIG.
9 is a diagram showing a state of the elastic member 140 at the time of the operation shown in FIG. 8. FIG. 9A shows a state before the disk 1 is clamped, and FIG. Each state is shown. FIG. 10 shows the elastic member 1 shown in FIG.
FIG. 10A is a diagram showing an operation in a case where the gap I of the disk 40 is eliminated, and FIG.
(B) shows the state before the disk 1 is pinched.

As shown in FIG. 6, a conventional disk clamp device is employed in an audio device that records or reproduces at least a disk 1 such as a CD, and includes a main body 110 that forms an exterior of the audio device. Tray 160 for transporting and ejecting disc 1 into main body 110
And a floating chassis 130 supported on the lower part of the main body 110 in a floating state, on which a turntable 132 is mounted and which moves up and down toward the clamper 150. An elastic member 140 for supporting the chassis 130 in a floating state;
And an elevating member 120 rotatably supported within 10 and elevating one side of the floating chassis 130.

[0004] In the main body 110, a floating chassis 130 is supported in a floating state by an elastic member 140 having elasticity. In this floating chassis 130, the disc 1 conveyed by the tray 160 is placed.
A plurality of optical components such as an optical pickup 134 for recording or reproducing the information are arranged. The floating chassis 130 has a disk 1 near the optical pickup 134.
Are mounted and a turntable 132 for rotating is placed. This turntable 132 is mounted on the floating chassis 13.
0, and a motor 132a
2a and a turntable 132b rotatably supported by the rotary table 2a. The turntable 132b has a structure in which a magnet (not shown) having a magnetic property is provided inside, and the clamper 150 is attracted by the magnet and the disk 1 is held therebetween. In addition, the floating chassis 130 fixes the elastic member 140 on one end side to the main body 110 and the elastic member 140 on the other end side (E side shown in FIG. 6) with the elevating member 1.
It is fixed to 20.

The elevating member 120 has a shaft 120a rotatably supported in the main body 110, and an elastic member 140 supporting one side of the floating chassis 130 is fixed to the other end rotating about the shaft 120a. are doing. The elevating member 120 engages a driving source (not shown) at a predetermined end, and rotates the pivot 120a as a fulcrum by the driving force of the driving source to move the floating chassis 130 up and down. .
Thus, the elevating member 120 is connected to the shaft 120 shown in FIG.
The turntable 132 can be raised and lowered together with the floating chassis 130 by rotating one end side with the a as a fulcrum. Further, as shown in FIG. 7, the elevating member 120 is provided with a boss 120c projecting vertically at a predetermined end, and formed so that the elastic member 140 can be fixed to the boss 120c. As shown in FIG. 7, the elastic member 140 fits into the boss 120c to support the floating chassis 130 in a floating state at an outer central portion.
It is fixed to the elevating member 120 by fastening a screw 124 with a washer 122 from above.

The clamper 150 has a fixed plate 154 disposed on a turntable 132 in the main body 110 shown in FIG. 6, and is rotatably supported by the fixed plate 154. The clamper 150 includes a disk-shaped metal body 152.
8 (see FIG. 8B), the disc 1 is held between the turntable 132 and the disc 1 by being attracted by the magnet of the turntable 132 described above.

[0007] When the disk 1 is clamped by using the conventional disk clamp device having such a configuration, first,
As shown in FIG. 6, the disc 1 is placed on the tray 160, and the tray 160 is slid and housed in the main body 110 together with the disc 1. At this time, the tray 160 is stored in the main body 110, and at the same time, as shown in FIG. 8A, the lifting member 120 rotates about the shaft 120a to raise the floating chassis 130, Is brought close to the clamper 150 side. As a result, as shown in FIG. 8B, the turntable 132 is raised by the floating chassis 130 and the disc 1 is moved to the tray 16.
Pick up from 0 and center. At the same time, the floating chassis 130 is supported by the elastic member 140 on the elevating member 120, and is maintained in a floating state in which external force such as vibration applied from the outside is absorbed. The turntable 132 has a turntable 132b as described above.
8 is provided with a magnet, and a clamper 150 having a metal plate 152 attached thereto is adsorbed on the centered disk 1, and FIG.
The disc 1 is held as shown in FIG. afterwards,
The disk 1 is rotated by a motor 132a and is provided on an optical pickup 134 provided on a floating chassis 130 shown in FIG.
At least predetermined information is recorded or reproduced by optical components such as.

By the way, in the conventional disk clamp apparatus, usually, the disk 1 is not inserted into the main body 110 in many cases (see FIG. 6). In such a case, FIG.
As shown in (a), the lifting member 120 is lowered and the floating chassis 130 is maintained in an inclined state. At this time, as shown in FIG. 9A, the elastic member 140 is interposed between the floating chassis 130 and the elevating member 120 to prevent the end portions F and G from being compressed by pressure. Is preferred. That is, it is important that the elastic member 140 does not apply pressure so as not to be deformed in a state other than the state where the disk 1 is inserted into the main body 110 and the floating chassis 130 is supported (the state where the disk 1 is ejected). When the disc 1 is ejected, the pressure is unevenly applied between the end F and the end G by the inclined surface of the elevating member 120 when the disc 1 is ejected, so that the end F is larger than the end G. Compress. Therefore, the elastic member 140 reduces the pressure applied to the end F to provide the gap H on the end G.
However, the elastic member 140 inserts the disk 1 into the main body 110 when a large amount of the gap H is provided, and
As shown in (b), when the lifting member 120 is raised to support the floating chassis 130, the gap I becomes large and rattling or the like occurs, and the floating chassis 130 cannot be reliably supported.

On the other hand, the elastic member 140 is
9B, the gap I shown in FIG. 9B can be eliminated, and the floating chassis 130 can be reliably supported as shown in FIG. 10A. However, the elastic member 1
Reference numeral 40 denotes a floating chassis 13 as shown in FIG.
When 0 is lowered, the end F side is greatly compressed and crushed. Accordingly, the elastic member 140 is constantly applied with pressure in all states of insertion and ejection of the disc 1, and thus causes problems such as deformation (severing).

[0010]

As described above, in the conventional disk clamp apparatus, the lifting member 120 shown in FIG.
Is rotated about the shaft 120a and tilted, as shown in FIGS. 9 and 10, the end F and the end G of the elastic member 140.
Since it is difficult to adjust the pressure due to the uneven pressure applied to the floating chassis 130, the elastic member 140 may be loose when the floating chassis 130 is supported, or the elastic member 140 may be deformed due to compression. SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned problems and to provide a disk clamp device capable of easily adjusting a pressure applied to an elastic member unevenly with a simple structure and preventing rattling and deformation.

[0011]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention comprises a main body containing a disk on which various information is recorded and a clamper disposed at an upper portion and a turntable ascending and descending at a lower portion. A disk clamp device for holding a disk, a floating chassis supported in a floating state within a main body, mounted on a turntable and raised and lowered toward a clamper, and an elastic member supporting the floating chassis in a floating state, An elevating member which rotatably supports the one end side and supports one side of the floating chassis via an elastic member on the other end side and vertically raises and lowers the floating chassis by rotating inside the main body,
In order to prevent uneven pressure from being applied to the elastic member supported by the surface of the elevating member being tilted by rotation, a uniform pressure is applied to the elastic member by projecting at a predetermined height from the surface of the elevating member. An auxiliary step is provided.

Here, when the turntable of the floating chassis is lifted by the rotation of the elevating member to clamp the disk, the auxiliary step is protruded to the inclined surface by the rotation of the elevating member, and is substantially flush with the bottom surface of the elastic member. It is preferable to provide so as to extend in parallel and abut. In addition, the lifting member is provided with a boss on a parallel surface where the auxiliary step abuts on the elastic member, and is supported by fitting the elastic member to the boss, and the floating chassis is supported in a floating state on the outer central portion of the elastic member. It is preferable to provide it. Further, the elastic member is preferably made of a soft material such as rubber or soft resin. The main body is a main body of a device for recording or reproducing at least a medium such as a DVD and a CD for a vehicle, and is preferably provided so as to absorb vibration during traveling by an elastic member.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of a disk clamp device according to the present invention will be described in detail with reference to the accompanying drawings. FIG. 1 is a view showing an embodiment of a disk clamp device according to the present invention. FIG. 2 is an exploded perspective view showing the structure of the portion A shown in FIG. FIG. 3 is an enlarged view showing the portion A shown in FIG. 1 in detail. FIG.
FIG. 4A is an operation explanatory diagram showing an operation of clamping the disk 1 by the disk clamp device shown in FIG. 1, and FIG.
4 shows a state before the holding, and FIG. 4B shows a state where the holding is performed. FIG. 5 is a view showing the state of the elastic member 40 during the operation shown in FIG. 4, and FIG.
5B shows a state before the disk 1 is held, and FIG. 5B shows a state after the disk 1 is held.

As shown in FIG. 1, an embodiment of a disc clamping apparatus according to the present invention is employed in an audio apparatus which records or reproduces at least a disc 1 such as a CD, similarly to the prior art shown in FIG. A main body 10 forming an exterior of the audio apparatus; a tray 60 for transporting and ejecting the disc 1 is provided in the main body 10; a clamper 50 disposed above the tray 60; A floating chassis 30 which is supported in a floating state, and on which the turntable 32 is placed and which moves up and down toward the clamper 50;
And a lifting member 20 rotatably supported in the main body 10 and raising and lowering one side of the floating chassis 30.

Here, the floating chassis 3 is provided in the main body 10.
Numeral 0 is supported in a floating state by an elastic member 40 having elasticity made of a soft material such as rubber or soft resin. The floating chassis 30 is provided with a plurality of optical components such as an optical pickup 34 for recording or reproducing at least the disk 1 conveyed by the tray 60. The floating chassis 30 includes an optical pickup 34.
A turntable 32 for setting and rotating the disk 1 is placed near the disk. The turntable 32 is formed by a motor 32a disposed on the surface of the floating chassis 30 and a turntable 32b rotatably supported by the motor 32a. The turntable 32b has a structure in which a magnet (not shown) having a magnetic property is provided therein, and the clamper 50 is attracted by the magnet to clamp the disk 1 therebetween. The floating chassis 30 has the elastic member 40 on one end side fixed to the main body 10 and the other end side (FIG. 6).
(A part side shown in FIG. 2) is fixed to the elevating member 20.

The elevating member 20 has a shaft 20a rotatably supported in the main body 10, and an elastic member 40 supporting one side of the floating chassis 30 is fixed to the other end rotating about the shaft 20a. are doing. The elevating member 20 engages a driving source (not shown) with a predetermined end, and rotates about the shaft 20a as a fulcrum by the driving force of the driving source to move the floating chassis 30 up and down. It is formed as follows. As described above, the lifting member 20 includes the floating chassis 30 supported by the elastic member 40 with the shaft 20a shown in FIG.
By rotating one end of the floating chassis 3, the floating chassis 3
With 0, the turntable 32 can be moved up and down.

The lifting member 20 is different from the prior art shown in FIG. 6 in that the surface supporting the elastic member 40 is
And an elastic member 4 protruding at a predetermined height as shown in FIG.
An auxiliary step 20b for applying a uniform pressure to zero is formed. Then, on the surface on which the auxiliary step 20b extends,
As in the prior art shown in FIG.
0c is provided, and the elastic member 40 is fixed to the boss 20c. As shown in FIG. 2, the elastic member 40 is fitted into the boss 20c to support the floating chassis 30 in a floating state at the outer central portion, and to fasten the screw 24 with the washer 22 interposed from above. As shown in FIG. 3, it is fixed to the elevating member 20.

Referring again to FIG. 1, the clamper 50
As in the prior art shown in FIG. 6, a fixed plate 54 is arranged on the turntable 32 in the main body 10, and is rotatably supported by the fixed plate 54. The clamper 50 has a disk-shaped metal body 52 (see FIG. 4A) mounted thereon, and is formed so as to be attracted to the magnet of the turntable 32 and to sandwich the disk 1 therebetween.

When holding the disk 1 using the embodiment of the disk clamping apparatus according to the present invention having such a configuration, first, as shown in FIG. 1, the disk 1 is placed on the tray 60, and The disk 60 is slid and housed in the main body 10 together with the disk 1. At this time, tray 6
4 is stored in the main body 10, and at the same time, as shown in FIG. 4A, the lifting member 20 rotates about the shaft 20a to raise the floating chassis 30, and the turntable 32 is moved to the clamper 50 side. Bring them closer. This makes turntable 3
4 is lifted by the floating chassis 30 to pick up the disk 1 from the tray 60 and center it, as shown in FIG. At the same time, the floating chassis 30 is supported by the elastic member 40 on the elevating member 20, and is maintained in a floating state in which external force such as vibration applied from the outside is absorbed. As described above, the turntable 32 is provided with the magnet on the turntable 32b, and the clamper 5 is provided with the metal plate 52 mounted on the centered disk 1.
0 adsorbs, and clamps the disk 1 as shown in FIG. Thereafter, the disc 1 is rotated by the motor 32a, and at least predetermined information is recorded or reproduced by optical components such as the optical pickup 34 provided on the floating chassis 30 shown in FIG.

Here, in the embodiment of the disc clamping device according to the present invention, as in the prior art shown in FIG. 6, the disc 1 is often not inserted into the main body 10 (see FIG. 1). In such a case, as shown in FIG. 4A, the elevating member 20 descends and the floating chassis 30 is maintained in an inclined state. In a state where the floating chassis 30 is inclined, as shown in FIG. 5A, pressure is applied to the end portions B and C of the elastic member 40 interposed between the floating chassis 30 and the elevating member 20 and are not compressed. To prevent it. That is, in a state other than the state where the disk 1 is inserted into the main body 10 and the floating chassis 30 is supported (the state where the disk 1 is ejected), the pressure applied to the elastic member 40 is reduced to prevent deformation.

At this time, this embodiment is different from the prior art shown in FIG.
An auxiliary step 20b protruding from the end C of the zero is provided, and the gap D is adjusted so as to be narrower than the gap H of the prior art shown in FIG. Thereby, the elastic member 40
5A, the disc 1 is inserted into the main body 10 and the lifting member 40 is raised to raise the floating chassis 30 as shown in FIG.
, The bottom surface (particularly, the bottom surface of the end portion C) is supported by the auxiliary step 20b, and the floating chassis 30 can be reliably supported in a floating state by preventing rattling. The auxiliary step 20b projects on the inclined surface of the lifting member 20 in the state shown in FIG. 5B in which the lifting member 20 rotates and raises the turntable 32 together with the floating chassis 30 to clamp the disk 1. It is preferable that the elastic member 40 is formed so as to extend substantially parallel to and contact with the bottom surface of the elastic member 40. As described above, in the present embodiment, with the simple structure in which the auxiliary step 20b adjusted to a predetermined height is provided in the conventional elevating member shown in FIG. 6, rattling of the elastic member 40 is prevented, and the floating chassis 30 is provided. Can be reliably supported.

Although the embodiment of the disc clamping apparatus according to the present invention has been described in detail, the present invention is not limited to the above-described embodiment, and can be changed without departing from the gist of the present invention. For example, an embodiment has been described in which the present invention is applied to an audio device that records or reproduces at least a disc such as a CD. However, the present invention is not limited to this. For example, the present invention is also applied to an apparatus that records or reproduces at least a disc such as a DVD. It is possible.

[0023]

As described above, according to the disk clamp apparatus of the present invention, the elastic member is supported by forming the auxiliary step adjusted to a predetermined height on the elevating member, so that the elastic member has a simple structure. The applied pressure can be easily adjusted, and it is possible to prevent problems such as rattling when supporting the floating chassis or deformation due to compression of the elastic member.

[Brief description of the drawings]

FIG. 1 is a diagram showing an embodiment of a disk clamp device according to the present invention.

FIG. 2 is an exploded perspective view showing a structure of a portion A shown in FIG.

FIG. 3 is an enlarged view showing part A shown in FIG. 1 in detail.

FIG. 4 is an operation explanatory view showing an operation of clamping a disk by the disk clamp device shown in FIG. 1;

FIG. 5 is a diagram showing a state of the elastic member during the operation shown in FIG. 4;

FIG. 6 is a diagram showing a conventional disk clamp device.

FIG. 7 is an exploded perspective view showing a structure of a portion E shown in FIG. 6;

FIG. 8 is an operation explanatory view showing an operation of clamping a disk by the disk clamp device shown in FIG. 6;

FIG. 9 is a diagram showing a state of the elastic member during the operation shown in FIG. 8;

FIG. 10 is a diagram showing an operation when the gap I between the elastic members shown in FIG. 9 is eliminated.

[Explanation of symbols]

 Reference Signs List 1 disc 10 main body 20 elevating member 20a shaft 20b auxiliary step 20c boss 22 washer 24 screw 30 floating chassis 32 turntable 32a motor 32b turntable 34 pickup 50 clamper 52 metal plate 54 fixing plate 40 tray

Continued on the front page (72) Inventor Junichi Oda 1-21-5 Ogawa Higashi, Akiruno-shi, Tokyo Inside Kenwood Precision Co., Ltd. (72) Katsutoshi Kobayashi 1-21-5 Ogawa Higashi, Akiruno-shi, Tokyo F-term (reference) in Kenwood Precision Co., Ltd. 5D038 BA04 EA21

Claims (5)

[Claims] 1. A disk clamp device for holding a disk on which various information is recorded in a main body and holding the disk by a clamper disposed at an upper portion and a turntable ascending and descending at a lower portion, wherein the disk is in a floating state in the main body. A floating chassis which is supported on the turntable and moves up and down toward the clamper; an elastic member which supports the floating chassis in a floating state; and one end rotatably supported in the main body. An elevating member that supports one side of the floating chassis via the elastic member and raises and lowers the floating chassis by rotation at the other end, wherein the surface of the elevating member is supported by being inclined by rotation. An auxiliary stage for projecting at a predetermined height from the surface of the elevating member to apply uniform pressure to the elastic member in order to prevent uneven pressure from being applied to the elastic member; Disk clamping device, characterized in that the provided. 2. The disk clamp device according to claim 1, wherein the auxiliary step is configured such that when the turntable of the floating chassis is lifted by the rotation of the lift member to clamp the disk, the lift member rotates. A disk clamp device characterized in that the disk clamp device is provided so as to protrude from a surface inclined by movement and extend substantially in parallel with a bottom surface of the elastic member. 3. The disk clamp device according to claim 2, wherein the lifting member is provided with a boss on a parallel surface where the auxiliary step contacts the elastic member, and the elastic member is fitted into the boss. A disk clamp device, wherein the disk chassis is supported and provided at a center outside the elastic member to support the floating chassis in a floating state. 4. The disk clamp device according to claim 1, wherein said elastic member is made of a soft material such as rubber or soft resin. 5. The disk clamp device according to claim 1, wherein the main body is a main body of an apparatus for recording or reproducing at least a medium such as a DVD or a CD for a vehicle, and the vibration during traveling is controlled by the elastic member. A disk clamp device provided so as to be absorbed.