JP2007265619A - Disk selection type disk device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve the problem that a load during pulling out a tray becomes large when a suppression member is provided between the tray and a case to prevent backlash even though backlash noise (rattle noise) is caused between respective trays when a plurality of trays are housed in the case, in the conventional disk storage magazine. <P>SOLUTION: A tray T is provided with an elastic piece 23, and a pressing part 24 is formed on the tray T located on the elastic piece 23 at a part facing a projection part 23a of the elastic piece 23. When trays T are overlaid and housed in the case 30, the elastic piece 23 is deformed by the pressure of the projection part 23a and the pressing part 24, and a disk D is pressed in the tray. A tray and a tray are mutually restrained by the pressing force of the elastic piece 23 simultaneously to prevent backlash of the trays T. When the tray T is pulled out, the projection part 23a is immediately separated from the pressing part 24, and the tray T is subsequently pulled out without receiving a load. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a disc selection type disc device in which a disc storage magazine in which a plurality of trays on which discs are placed is removably provided is loaded inside a case.

  FIG. 7 is a perspective view showing a general structure of a disk storage magazine used in a disk changer.

  A disc storage magazine 1 shown in FIG. 7 is housed in a case 3 so that a plurality of trays 2 such as six or eight can be pulled out freely and a disc D is placed on each tray 2. Is placed. When the disc storage magazine 1 is loaded into the device main body of the disc changer, any one tray 2 in the case 3 is selected, and the tray 2 is removed from the case 3 via the hook 2d by a transfer means (not shown). Pulled out.

  As shown in FIG. 8, the drawn disk D on the tray 2 is clamped on the turntable 4 of the reproducing unit. At this time, the disk D is slightly lifted from the tray 2 or the disk D is turned on the turntable 4. After being clamped up, the tray 2 is returned into the case 3. Then, the turntable 4 and the disk D are rotationally driven by the spindle motor 5, and the recorded music or the like of the disk D is reproduced by the optical pickup 6.

The disk storage magazine 1 has the following problems.
(1) A plurality of trays 2 are housed in the case 3 so that they can be taken out freely. However, when the vehicle body vibration or the like is applied to the case 3, the tray 2 rattles in the case 3 and is uncomfortable. A noise is generated. Therefore, conventionally, an elastic member such as a leaf spring is provided at the edge of each tray 2, and the elastic member is elastically pressed by a sliding portion such as a partition plate provided in the case 3, The tray 2 is restrained from moving in the case 3.

  However, in the case where the elastic member is provided, when the tray 2 is pulled out from the case 3 and when the tray 2 is returned into the case 3, the elastic member is always pressed by the sliding portion and slides. Therefore, the load when moving the tray 2 within the case 3 is large, and a large load acts on the transfer means for pulling out the tray 2. When this load increases, the movement of the tray 2 becomes sluggish, and there is a possibility that malfunction such as defective pulling out of the tray may occur. Further, since the elastic member and the sliding portion are constantly pressed, there is a problem that the sliding portion is likely to be worn, and as a result, the transfer load of the tray 2 is further increased.

(2) In the conventional disc storage magazine 1, the tray 2 is restrained by the elastic member or the like in the case 3 as described above, so that the tray 2 does not rattle in the case 3. However, since the disc D is placed in the thickness direction in the tray 2 with a slight margin, when the vehicle body vibration or the like acts on the case 3, the disc D moves in the tray 2, Prone to rattling. The rattling sound is harsh as an acoustic device.

  Further, when an impact or the like when loading the disk storage magazine 1 into the disk device is applied, the disk may inadvertently jump out of the tray 2 held in the case 3 and cause a malfunction of the disk device. is there. Further, when the disk storage magazine 1 is taken out from the disk device and the case 3 is tilted, the disk D may drop from the mounting portion on the tray 2.

  The present invention solves the above-mentioned conventional problems, can hold the tray in the case without rattling, can reduce the load when the tray moves in the case, and reduces the number of wear points when the tray moves. An object of the present invention is to provide a disc selection type disk device that can be used.

  Another object of the present invention is to provide a disk selection type disk device that prevents the disk from rattling in the tray when vibration is applied to the case and prevents the disk from being inadvertently detached from the tray in the case. It is said.

In the present invention, a magazine is provided with a magazine installation area and a rotation driving means for rotationally driving a disk pulled out from the magazine, and the magazine is stored in the case in a plurality of trays so as to be freely drawn out. In the disk selection type disk device in which the disk is mounted on
The tray is provided with an elastic piece, and when the tray is housed in a case, a pressing portion is provided to press the elastic piece. When the disc is pressurized and restrained, and the tray is pulled out from the case, the pressurization of the elastic piece is released and the restraint on the disc is released.

  In the present invention, when the tray is housed in the case, the disk is pressed by the elastic piece provided on the tray, and the disk is held in the tray without rattling. In addition, it is possible to effectively prevent the disc from jumping out of the tray.

  For example, the pressurizing unit is provided in another tray that is stacked above or below the tray in the case, and when the tray is stacked in the case, the elastic piece and the pressurizing unit are The disk is restrained by the elastic force, and the elastic piece is detached from the pressurizing part and the restraint on the disk is released while the tray is pulled out from the case and moved.

  However, in the present invention, the elastic piece may be pressed by a pressing portion provided on an inner wall or a partition plate in the case, and as a result, the disk may be pressed by the elastic piece. However, if a pressure part is provided in the tray, the trays can be restrained by the elastic piece and the pressure part in the case.

  Further, for example, a transfer means for pulling out the tray from the case is provided, and after the disk installed in the tray pulled out from the case is held by the rotation driving means, the tray is moved into the case by the transfer means. It can be configured that the elastic piece and the pressurizing unit are returned to the state of being pressed back.

  In the present invention, when the tray is pulled out from the case, the elastic piece and the pressurizing portion are detached, and the restraint of the disk by the elastic piece is released. Therefore, since the elastic piece does not pressurize the disk when the disk is held by the rotary drive device, the tray can be returned to the case with a small load after the disk is held by the rotary drive device.

  Further, in the present invention, the disk may be held by the rotation driving device with the tray protruding from the case, and the disk may be rotationally driven with the tray protruding. Also in this case, since the restraint of the disk by the elastic piece is released when the tray protrudes, the disk can be driven to rotate within the tray.

  In the present invention, since the elastic piece provided in the tray is pressed by the pressurizing unit and the disk in the tray is pressed, rattling of the disk in the tray can be prevented. Further, since the pressure of the elastic piece is released when the tray protrudes from the magazine, the return operation of the tray after the disk is held by the rotary drive device is easy.

  FIG. 1 is a side view showing the structure of the main part of the disk selective disk device of the present invention, FIG. 2 is a bottom sectional view of the disk storage magazine shown in FIG. 1 as viewed from the II-II direction, and FIG. FIG. 4 is a sectional view taken along line IV-IV showing the disk storage magazine shown in FIG. 1, and FIG. 5 is a sectional view taken along line VV in FIG.

  In the disk selection type disk apparatus shown in FIG. 1, an installation area 11 for a disk storage magazine M and a disk drive area 12 are formed in a housing 10. The magazine M is loaded into the installation area 11 in the housing 10 from the near side in the direction orthogonal to the paper surface of FIG. In the magazine M, a plurality of trays T are stacked and stored in a freely retractable manner. Each tray T can hold a disk D such as a CD, DVD, or CD-ROM.

  A disk drive unit 13 is provided in the disk drive area 12. The disk drive unit 13 can be raised and lowered in the direction in which the trays T in the magazine M are arranged (Z1-Z2 direction), and any of the trays T in the magazine M is selected by this raising and lowering operation.

  The disk drive unit 13 is equipped with a spindle motor 14 and a turntable (rotary drive device) 15 that is rotationally driven by the spindle motor 14, and a clamper 16 that presses the center of the disk D against the turntable 15. Is provided. An optical head 17 is provided in the disk drive unit 13. Further, the disk drive unit 13 is provided with a transfer member 18 as a transfer means for pulling out the selected tray T in the X1 direction and returning it in the X2 direction. The transfer member 18 is driven in the X1-X2 direction by a mechanism mounted on the disk drive unit 13.

FIG. 3 is a bottom view of the tray T as viewed from below.
This tray T is injection-molded with a synthetic resin material. The tray T has an upper surface plate 20, and a side wall 21 protruding in a rib shape downward from the upper surface plate 20 (the front side in FIG. 3) is integrally formed. In the storage direction (X2 direction) side of the tray T, the side wall 21 is a semi-annular portion 21a having an inner diameter that is slightly larger than the diameter of the disk D, and on the left and right sides in FIG. Parallel portions 21b and 21b are formed.

  Support pieces 22 and 22 having a predetermined width from the lower edge of the side wall 21 (the edge on the front side of the paper in FIG. 3) from the parallel parts 21b and 21b of the side wall 21 to the semi-annular part 21a. It is integrally formed. The disk D is stored in a region surrounded by the side wall 21, and the edge D 1 of the disk D is held between the upper surface plate 20 and the support pieces 22, 22 as shown in FIG. The facing distance H1 between the upper surface plate 20 and the support pieces 22, 22 is formed to be slightly wider than the plate thickness dimension of the disk D.

  Leaf springs 29, 29 serving as retaining members are attached to the inner surfaces of the parallel portions 21b, 21b of the side wall 21. The leaf springs 29 and 29 are attached so as to protrude in a V shape toward the center of the tray T. The disk D inserted in the X2 direction from between the upper surface plate 20 and the support pieces 22 and 22 is installed at a position where the edge D1 of the disk D hits the semi-annular portion 21a. The edge D1 is slightly pressed in the X2 direction so as to face the edge D1 of D, and the disk D is held so as not to be easily detached from the tray T.

  Further, the disk D can be extracted from the tray in the X1 direction by passing between the parallel part 21b and the parallel part 21b of the side wall 21. At this time, the leaf springs 29 and 29 are deformed, and the extraction becomes possible.

  As shown in FIG. 3, a recess 20 a that enters X <b> 2 is formed on the X <b> 1 side edge of the top plate 20. When the disk D is installed in the semi-annular portion 21a, the center hole D2 of the disk D appears in the recess 20a.

  Elastic pieces 23, 23 are integrally formed on the left and right side portions of the top plate 20 on the X1 side. The elastic pieces 23, 23 are formed in a beam shape by separating a part of the upper surface plate 20 with a notch, and in a state where no external force acts, the elastic pieces 23, 23 are separated from the upper surface plate 20. It extends on the same plane. Therefore, the elastic pieces 23 and 23 in the free state do not press the disk D in the tray T. As shown in FIG. 4, protrusions 23 a and 23 a that protrude upward from the upper surface plate 20 are integrally formed at the tips of the elastic pieces 23 and 23.

  Further, a part of the support pieces 22, 22 formed on the left and right side portions of the tray T is formed in a convex shape toward the center side of the tray T, and the convex portions become the pressurizing portions 24, 24. Yes. The pressurizing parts 24, 24 are formed at positions facing the front parts of the elastic pieces 23, 23.

  Further, other elastic pieces 25, 25 are formed on both the left and right side portions of the upper surface plate 20 on the X2 side. The elastic pieces 25 are also formed in a beam shape by separating a part of the top plate 20 by a notch. As shown also in FIG. 5, the front portions 25a, 25a of the elastic pieces 25, 25 are deformed downward (Z2 direction). Therefore, when the disc D is inserted inside the semi-annular portion 21a, the edge D1 of the disc D is always pressed by the tip portions 25a, 25a of the elastic pieces 25, 25.

  A holding projection 26 that projects in the X2 direction is integrally formed on one side of the tray T in the back direction in the X2 direction. Furthermore, a hook 27 with which the transfer member 18 is engaged is formed on one side of the end portion of the tray T on the X1 side.

  As shown in FIG. 1, the case 30 of the disk storage magazine M has a box shape having a ceiling plate 31, a bottom plate 32, both side plates 33 and 33, and a back plate 34, and is used for pulling out the tray T to the X1 side. An opening 38 is formed.

  As shown in FIG. 4, a partition plate 35 having a predetermined width is formed on the inner surfaces of the left and right side plates 33, 33 of the case 30 so as to extend in the X direction. The partition plate 35 is provided in a plurality of stages at intervals in the height direction (Z direction), and both side portions 20b and 20b of each tray T are inserted between the partition plates 35 and 35. The housing 30 is slidably housed in the X1-X2 direction. The facing distance H2 between the partition plates 35 and 35 is slightly wider than the thickness dimension of the tray T, and the tray T inserted between the partition plates 35 and 35 moves slightly in the vertical direction. It is supposed to produce a rattling.

  As shown in FIG. 2, a partition plate 36 is also provided inside the back plate 34 of the case 30, and this partition plate 36 is formed at the same interval as the partition plate 35 shown in FIG. 4. An end portion on the X2 side of the tray T accommodated therein is inserted between the partition plate 36 and the partition plate 36.

  A leaf spring 37 formed in an Ω shape is provided on one side of the inner surface of the back plate 34. The plate springs 37 are formed so as to be deformable independently for a plurality of trays T. When the tray T is inserted into the case 30, the holding projections 26 of the tray T are The leaf spring 37 is held.

  In the operation of storing the disk D in the disk storage magazine M, each tray T is taken out from the case 30 and the disk D is inserted between the upper surface plate 20 of the tray T and the support pieces 22 and 22 in the X2 direction. When the leaf springs 29 and 29 provided inside the parallel portions 21b and 21b of the side wall 21 are deformed during the insertion and the edge D1 of the disk D is inserted into a position where it hits the semi-annular portion 21a, the leaf spring 29 and 29 oppose the edge D1 of the disk D from X1, and slightly press the edge D1. Further, as shown in FIG. 5, the edge portion on the X2 side of the disk D is elastically pressed by the tip portions 25a and 25a of the elastic pieces 25 and 25 provided on the back side of the upper surface plate 20 of the tray T. . Therefore, the disk D is held in the tray T by the leaf springs 29 and 29 and the elastic pieces 25 and 25.

  When the tray T holding the disk D is inserted between the partition plates 35 and 35 of the case 30 and inserted to the back, the holding projections 26 formed on the tray T are held by the leaf springs 37, and each tray T is It is held in a state of being stored in the case 30.

  When the trays T are stacked and stored in the case 30, as shown in FIG. 4, the protruding portions 23a and 23a of the elastic pieces 23 and 23 formed on the X1 side of the upper surface plate 20 of each tray T are provided. The elastic pieces 23 and 23 are deformed downward (in the Z2 direction) by hitting the pressurizing portions 24 and 24 of the tray T positioned thereon, and the edge D1 on the X1 side of the disk D is formed as shown in FIG. The elastic pieces 23 are pressed downward.

  Therefore, when each tray T is stored in the case 30, the disk D installed in the tray T is deformed by the pressure units 24 and 24 on the opening 38 side (X1 side) of the case 30. The edge D1 is pressed by the elastic pieces 23, 23, and the inner side (X2 side) of the case 30 is pressed by the elastic pieces 25, 25 deformed in advance. The left and right sides of the disk D are restrained by the leaf springs 29 and 29. Accordingly, the disk D is firmly held in the tray T without causing ups and downs and left and right directions.

  In addition, the trays T accommodated in the case 30 are in a state where the elastic pieces 23 and 23 are pressed by the pressurizing portions 24 and 24 of the tray T located above the elastic pieces 23 and 23. Therefore, the trays T repel each other in the Z1-Z2 direction due to the elastic pressure of the elastic pieces 23, 23 and the reaction thereof. As a result, the trays T are bound to each other in the case 30, and in the case 30 Shaking of the tray T is prevented.

  Even when the vehicle body vibration is applied with the disk storage magazine M loaded in the housing 10, the trays T do not move in the case 30, and the disks D are restrained in the tray T. Therefore, the rattling sound of the tray T and the rattling sound of the disk D are not generated. In addition, when an impact force is applied, the disc D can be prevented from accidentally jumping out of the tray T.

  When any disk D is selected for reproduction or recording, the disk drive unit 13 shown in FIG. 1 moves in the Z1-Z2 direction, and any tray T in the magazine M is selected. In other words, when the transfer member 18 moves up and down as the disk drive unit 13 moves up and down and the transfer member 18 is positioned in the hook 27 of the selected tray T, the disk selection operation by the disk drive unit 13 is completed. To do.

  Next, the transfer member 18 moves in the X1 direction, and the selected tray T is pulled out from the case 30 in the X1 direction. As shown in FIGS. 2 and 3, the pressurizing portions 24, 24 formed in the lower portion of the tray T have a very short width dimension W in the X direction, which is the transfer direction of the tray T. Immediately after T starts to move by receiving the pulling force, the protruding portions 23a, 23a of the elastic pieces 23, 23 formed on the upper surface plate 20 of the tray T to be transferred are 24, 24 is immediately removed.

  Therefore, immediately after the tray T starts to be pulled out, the elastic pressure by the elastic pieces 23, 23 on the tray T to be pulled out is released. Therefore, the tray T is pulled out from the case 30 without receiving the resistance force by the elastic pieces 23 and 23. Therefore, the load on the transfer member 18 required to pull out the tray T is reduced, and the tray T is pulled out smoothly without being caught. Further, the sliding time between the projecting portions 23a, 23a of the elastic pieces 23, 23 and the pressurizing portions 24, 24 is extremely short, and the projecting portions 23a, 23a should be smooth surfaces such as spherical surfaces. Thus, it is possible to prevent the protrusions 23a and 23a and the pressurizing parts 24 and 24 from being worn.

  Further, when the projecting portions 23a, 23a are disengaged from the pressurizing portions 24, 24, at this time, the elastic pieces 23, 23 are elastically restored so as to be substantially flush with the upper surface plate 20, and the elastic pieces 23, 23 The pressure applied to the edge D1 of the disk D is released. Therefore, the X1 side edge portion of the disk D in the tray T is released.

  Incidentally, the width dimension W in the X direction of the pressurizing portions 24, 24 may be longer than that shown in FIG. 3, and when the tray T is pulled out from the case 30, the pressurizing portions 23a, 23a and the pressurizing portion 23a are pressed. The protrusions 23 a and 23 a may be detached from the pressurization parts 24 and 24 after the parts 24 and 24 slide and the tray T moves to some extent. That is, if the width dimension W is shorter than the distance that the tray T transferred by the transfer member 18 moves through the case 30, the effect of reducing the load during transfer of the tray can be exhibited. However, in order to obtain the effect of the present invention, the W is preferably not more than half of the moving distance of the tray T, and more preferably not more than 1/4.

  When the tray T is pulled out from the case 30 by the transfer member 18, the center hole D2 of the disk D is fitted into the turntable 15 of the disk drive unit 13, and the center of the disk D is sandwiched between the turntable 15 and the clamper 16. Is done. Immediately thereafter, the transfer member 18 moves in the X2 direction, and the tray T is returned into the case 30. When the tray T is returned into the case 30, the protruding portions 23 a and 23 a of the elastic pieces 23 and 23 of the returned tray T are elastically pressed by the pressurizing portions 24 and 24 of the tray T on the tray T and the inside of the case 30. Thus, the trays T are in a state of being bound to each other. Therefore, the empty tray T does not rattle in the case 30 in a state where the empty tray T is returned to the case 30.

  When the tray T is returned to the case 30, since the pressure of the disk D by the elastic pieces 23, 23 is released, the tray T returns to the case 30 after the disk D is held by the turntable 15. In addition, the elastic pieces 23 and 23 do not give resistance to the return of the tray T. Therefore, the tray T is smoothly returned into the case 30.

  Then, the disk D is rotationally driven by the spindle motor 14. At this time, as shown in FIG. 1, a part of the disk D is rotationally driven while being positioned in the case 30, and reproduction or recording is performed by the optical head 17. .

  Note that when the tray T is pulled out from the case 30 and the disk is held by the turntable 15, the disk may be rotationally driven with the tray T protruding. At this time, since the elastic pieces 23 and 23 of the tray T are separated from the disk, the elastic pieces 23 and 23 do not hinder the rotation of the disk.

FIG. 6 shows a modification of the present invention.
In FIG. 6, protrusions 23a, 23a are not formed on the elastic piece 23, and a downward spherical protrusion 24a is formed on the pressurizing part 24 of the tray T positioned thereon. When the tray T is stacked and stored in the case 30, the protruding portion 24 a formed on the pressing portion 24 and the elastic piece 23 are elastically pressed, and the elastic piece 23 is deformed downward, The edge of the disk is pressed by the elastic piece 23.

  Contrary to the above-described embodiments, an elastic piece is formed on the lower side of the tray T, and the elastic piece is pressed by the pressurizing portion of the tray T located below the elastic piece. The disk may be deformed upward and pressed.

The side view which shows embodiment of the disk selection type disk apparatus of this invention, Sectional drawing of the II-II line which looked at the disk storage magazine shown in FIG. 1 from the lower side, Bottom view of the tray as seen from below, The fragmentary sectional view of the IV-IV line of the disk storage magazine shown in FIG. The expanded sectional view of the VV line of FIG. The fragmentary sectional view equivalent to FIG. 4 which shows the disk storage magazine of the modification of this invention, The perspective view which shows the general structure of the conventional disc storage magazine, Sectional drawing which shows the state by which the tray and the disk were pulled out from the conventional magazine,

Explanation of symbols

D disk M disk storage magazine T tray 10 housing 11 magazine installation area 12 disk drive area 13 disk drive unit 15 turntable (rotary drive device)
18 Transfer member 20 Upper surface plate 21 Side wall 21a Semi-annular part 21b Parallel part 22 Support piece 23 Elastic piece 23a Projection part 24 Pressurization part 24a Projection part 25 Elastic piece

Claims (3)

A magazine installation area and rotation drive means for rotating the disk pulled out from the magazine are provided in the housing, and the magazine is mounted on a plurality of trays that are housed in the case. In the disk selection type disk device that is installed,
The tray is provided with an elastic piece, and when the tray is housed in a case, a pressing portion is provided to press the elastic piece. A disc-selectable disc, wherein the disc is pressed and restrained, and when the tray is pulled out from the case, the pressurization of the elastic piece is released and the restraint on the disc is released. apparatus.   The pressurizing unit is provided in another tray that is stacked above or below the tray in the case, and the elastic piece and the pressurizing unit are elastically pressed when the tray is stacked in the case. 2. The disk-selectable disk device according to claim 1, wherein the disk is restrained and the elastic piece is detached from the pressurizing portion and the restraint on the disk is released while the tray is pulled out from the case and moved. .   A transfer means for pulling out the tray from the case is provided, and after the disk installed in the tray drawn from the case is held by the rotation drive means, the tray is returned to the case by the transfer means, 3. The disk selective disk device according to claim 1, wherein the elastic piece and the pressurizing unit are returned to a state where they are elastically pressed.

Images