JP2004145908A - Magazine for disk changer - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a magazine for a disk changer, for surely suppressing rattling noise generated between a tray and a guide rail for a long period of time. <P>SOLUTION: The magazine M for a disk changer is provided with a housing 1 having a plurality of pairs of guide rails 3, 4 on opposing inner walls, an Ω-shaped leaf spring 6 disposed in the deep part of the housing 1, and a plurality of trays 2 having engaging projected parts 11 engaged with/disengaged from the leaf spring 6 and received in the housing 1 to be freely pulled out, and a disk D is held in each tray 2. Further, a tapered surface 3a is formed in the opening end of the guide rail 3, a projected step part 12 having a tapered surface 12a is formed in the parallel part 8 of the tray 2 slid along the guide rail 3, a force F reactive to the force of the leaf spring 6 to pull the tray 2 into the housing 1 is applied in a direction vertical to the tapered surface 12a when the tray 2 is received in the housing 1, and the tray 2 is pressed to the top surface of the guide rail 3 positioned below a guide groove 5 by the downward divided force P of the reactive force F. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a disc changer magazine that holds a plurality of discs and is loaded into a disc changer body, and more particularly to a disc changer magazine in which a plurality of trays that hold discs are housed in a housing so as to be freely drawn out. About.
[0002]
[Prior art]
FIG. 14 is a configuration diagram of a conventionally known disk changer. An installation area 21 for a magazine M and a disk drive area 22 are formed inside a housing 20 that forms a main body of the disk changer. The magazine M is loaded into the housing 20 from the near side in the direction perpendicular to the paper surface of FIG. 14, and a plurality of trays (not shown) are stored in the magazine M in a stacked state. Each tray can be pulled out of the magazine M, and each tray holds a disk D such as a CD or a DVD. On the other hand, a disk drive unit 23 is provided in the disk drive area 22. The disk drive unit 23 can be moved up and down in FIG. 14 and any one of the disks D in the magazine M is moved up and down. Selected. The disk drive unit 23 includes a spindle motor 24 and a turntable 25, a clamper 26 for pressing the center of the disk D against the turntable 25, an optical pickup 27, and the like. Is transferred to
[0003]
In the disk changer having such a schematic configuration, when any one of the disks D in the magazine M is selected for reproduction or recording, first, the disk drive unit 23 is moved up and down in FIG. Is selected. Next, the selected tray is pulled out of the magazine M by a transfer means (not shown), and the center of the disk D held on this tray is chucked between the turntable 25 and the clamper 26. Then, the turntable 25 and the disk D are driven to rotate by the spindle motor 24, and the optical pickup 27 reproduces or records the disk D.
[0004]
Conventionally, as a magazine M used for this type of disc changer, a plurality of trays are rotatably supported on a common shaft provided in a box-shaped housing, and elastic portions are provided on portions of the individual trays which do not interfere with the disc D. One in which a tongue piece is integrally formed has been proposed (for example, see Patent Document 1). In such a conventional magazine M for a disc changer, the free end of the elastic tongue is pressed against the plate surface of the adjacent tray when each tray is stored in the housing in a stacked state. It is possible to prevent each tray from rattling and colliding in the housing by deformation of the elastic tongue. Therefore, even in an environment in which external vibrations are likely to act, such as an in-vehicle disk changer, the looseness of the trays housed in the housing is reduced, and a difference called rattle noise caused by collision between the trays is reduced. Sound can be suppressed.
[0005]
[Patent Document 1]
JP-A-7-37315 (page 4-5, FIG. 2)
[0006]
[Problems to be solved by the invention]
In the above-described conventional magazine for a disc changer, each tray supported on the common shaft is configured to be rotated and pulled out of the housing.However, a plurality of sets of guide rails are provided on opposed inner side walls of the housing. There is also known a disc changer magazine configured to slide each tray along these guide rails and pull it out of the housing.
[0007]
As described above, in the magazine of the type in which the tray slides along the guide rail, a clearance for sliding is indispensable between the tray and the guide rail. Therefore, the elastic tongue disclosed in Patent Document 1 is provided on the tray. Even if a tray is formed to prevent collision between trays, if external vibration is applied to the tray stored in the housing, the tray will rattle in the above clearance and hit the top or bottom surface of the guide rail. However, there is a problem that rattle noise occurs at the site. An elastic tongue is formed on a portion of the tray that slides on the guide rail, and the free end of the elastic tongue is pressed against the top surface or the bottom surface of the guide rail. The occurrence of rattle noise can be suppressed, but in that case, the tension of the elastic tongue is always applied during the sliding of the tray, so that there is a problem that a smooth storing or pulling-out operation of the tray is hindered. In addition, the elastic tongue pressed against the guide rail is liable to wear due to repeated sliding, and since the cantilever-like elastic tongue is accompanied by creep deformation against high temperatures, the spring characteristic of the elastic tongue has changed over time. There is also a problem that the noise is remarkably reduced and the rattle noise cannot be suppressed.
[0008]
The present invention has been made in view of such a situation of the related art, and an object of the present invention is to provide a disc changer magazine capable of reliably suppressing rattle noise generated between a tray and a guide rail for a long period of time. To provide.
[0009]
[Means for Solving the Problems]
The present invention forms a convex step on the rear end side of the tray inserted in the guide rail in the storage direction, and provides a taper section on at least one of the convex step and the open end of the guide rail, When the tray is stored in the housing, the tray is pressed against the top surface or the bottom surface of the guide rail by utilizing the tapered portion and the pulling force of the spring member provided in the housing. With this configuration, the tray can be moved smoothly along the guide rails during transport when the tray is not completely stored in the housing, and the tray is guided only when the tray is stored in the housing. It is possible to reliably suppress rattle noise by pressing the rail with sufficient force.
[0010]
BEST MODE FOR CARRYING OUT THE INVENTION
The magazine for a disc changer of the present invention has a box-shaped housing in which a plurality of sets of guide rails are provided on inner walls facing each other with an opening on one side, and a spring member disposed in a deep portion inside the housing. A plurality of disc holding trays movable along the guide rail, and an engaging portion is provided at a leading end side in a storage direction of the tray, and the engaging portion is locked by the spring member. In a magazine for a disc changer in which the tray is held inside the housing and the engagement between the engaging portion and the spring member is released when the tray is pulled out from the opening, the tray slides on the guide rail. A convex step is formed on the rear end side of the moving tray in the storage direction, and a taper is provided on at least one of the convex step and the open end of the guide rail. When the tray is housed in the housing, the convex step and the open end of the guide rail come into contact with each other, and the reaction force of the pulling force generated by the engagement of the engaging portion with the spring member is reduced. The tray is pressed against the top or bottom surface of the guide rail by acting on the tapered portion.
[0011]
In the magazine for a disc changer configured as described above, when the tray is stored in the housing, the reaction force of the retraction force of the spring member acts on the tapered portion, and the tray is pressed against the top or bottom surface of the guide rail. The tray can be moved smoothly along the guide rail when the tray is pulled out of the housing or when the tray is being stored in the housing. It is possible to reliably suppress rattle noise by pressing with force. At this time, the tapered portion can be formed as a structure with sufficient rigidity at the open end of the guide rail or the convex step of the tray, so that it is less likely to creep as compared with the elastic tongue, and the above-mentioned rattle noise is reduced for a long time. It can be reliably suppressed over the entire range.
[0012]
In the above configuration, it is preferable that the taper portion is inclined with respect to both the top and bottom surfaces of the guide rail and the side surfaces of the guide rail. With such a configuration, the position of the tray is regulated in the three-dimensional direction. Therefore, rattle noise can be more reliably suppressed.
[0013]
【Example】
FIG. 1 is a perspective view of a magazine for a disc changer, FIG. 2 is a cross-sectional view showing the internal structure of the magazine, FIG. 3 is a front view of a housing provided in the magazine, and FIG. 4 is a longitudinal sectional view of the housing, FIG. 5 is an explanatory view of a guide rail provided on the housing, FIG. 6 is a sectional view taken along line AA of FIG. 5, and FIG. 7 is a line taken along line BB of FIG. 8 is a cross-sectional view, FIG. 8 is a plan view of a tray provided in the magazine, FIG. 9 is a side view of the tray, FIG. 10 is a bottom view of the tray, FIG. 11 is a perspective view showing a main part of the magazine, FIG. FIG. 13 is an explanatory diagram of the operation of the tapered surface.
[0014]
The magazine for a disc changer according to the present embodiment is used by being loaded into the above-described disc changer (see FIG. 14). As shown in FIGS. 1 and 2, the magazine M is a box having an open front surface. The housing 1 includes a housing 1 having a shape and a plurality of trays 2 housed in the housing 1 so as to be able to be pulled out.
[0015]
The housing 1 is formed by injection molding of a synthetic resin material. As shown in FIGS. 3 and 4, a plurality of sets of guide rails 3 and 4 are integrally formed on opposite left and right inner side walls of the housing 1. I have. The guide rails 3 and 4 extend from the opening side of the housing 1 to the back side (X1-X2 direction). In the up-down direction (Z1-Z2 direction) of the housing 1, there is a space between the guide rails 3 and 4, respectively. A guide groove 5 is formed. The tray 2 is guided by the guide grooves 5 in the front-rear direction (X1-X2 direction). In this embodiment, six sets of guide grooves 5 are formed corresponding to the six trays 2. ing. As shown in FIG. 2, a leaf spring 6 formed into an Ω shape is disposed in the inner part of the housing 1. The free ends of the leaf springs 6 are arranged in six sets in the Z1-Z2 direction. Each group is divided so that each group can be independently deformed in a plurality of planes corresponding to each guide groove 5.
[0016]
A tapered surface 3a is formed from the front surface to the bottom surface of each guide rail 3 on the right side in the drawing. As shown in FIGS. 5 to 7, the tapered surface 3a is a plane including a set of guide grooves 5 (an XY plane). ) Is inclined at an angle θ1 from the front surface of the guide rail 3 toward the back. The tapered surface 3a is inclined at an angle θ2 from the side surface of the guide rail 3 toward the inner surface of the guide groove 5 with respect to the XY plane.
[0017]
The tray 2 is formed by injection molding of a synthetic resin material. As shown in FIGS. 8 to 10, the tray 2 has a pair of left and right parallel portions 7, 8 and bridges the parallel portions 7, 8. An upper surface plate 9, a pair of support pieces 10 opposed to both left and right sides of the upper surface plate 9 at a predetermined interval in the Z2 direction, and an X1 direction along the left parallel portion 7 from the tip of the upper surface plate 9 And an engaging projection 11 projecting from As shown in FIG. 2, when the tray 2 is housed in the housing 1, the engaging projection 11 of the tray 2 is locked by the leaf spring 6. Further, the disc D is held between the upper surface plate 9 of the tray 2 and both support pieces 10, and in the case of the present embodiment, six discs 6 capable of holding the disc D on the six trays 2 respectively are provided. It is a magazine for compatible disc changers.
[0018]
The parallel portions 7 and 8 are slidably inserted in the guide grooves 5 of the housing 1 in the X1-X2 directions, and the height H1 of the guide grooves 5 (see FIG. 4) is adjusted to the height of the parallel portions 7 and 8. By setting the length slightly larger than the length H2 (see FIG. 12), a clearance C for ensuring smooth sliding between the parallel portions 7, 8 and the guide groove 5 is secured. Further, a convex step portion 12 is formed on the front end side (X2 direction) of the right parallel portion 8, and the height dimension H3 of the convex step portion 12 is equal to the height of the above-described guide groove 5. It is set larger than the dimension H1. As shown in FIG. 11, a tapered surface 12 a is formed on the end surface in the X1 direction of the convex step portion 12, and when the tray 2 is stored in the housing 1, the taper surface 12 a of the convex step portion 12 is formed. And the tapered surface 3a of the guide rail 3 abuts.
[0019]
A pair of elastic pieces 13 are integrally formed in a cantilever shape on both left and right sides of the upper surface plate 9, and projecting portions 13 a are formed at free ends of the elastic pieces 13. Further, a pressing portion 14 is formed on each of the supporting pieces 10 so as to protrude, and each protruding portion 13a and the pressing portion 14 are formed at the same position in the Z1-Z2 direction. In a no-load state where the tray 2 is pulled out of the housing 1, the elastic piece 13 extends on the same plane as the upper surface plate 9 and is not in contact with the disk D held on the tray 2. When the elastic piece 13 is stored, the elastic piece 13 is deformed downward with respect to the upper surface plate 9 by the protruding portion 13a being pressed by the pressurizing portion 14 of the tray 2 located above the protruding portion 13a. As a result, the elastic piece 13 abuts on the peripheral edge of the disk D, and the disk D is stably held without rattling of the tray 2. Further, a leaf spring 15 is attached inside the left parallel portion 7, and the leaf spring 15 elastically contacts the peripheral portion of the disc D so that the disc D does not accidentally jump out of the tray 2. Has become.
[0020]
In the magazine M for a disc changer configured as described above, the discs D are held on the individual trays 2 drawn out of the housing 1, and then the parallel portions 7 and 8 of the trays 2 are inserted into the guide grooves 5 of the housing 1. When pushed in the X1 direction, the tip of the engaging projection 11 comes into contact with the leaf spring 6. When the tray 2 is further pushed in the X1 direction from this state, the engaging protrusion 11 pushes and expands the leaf spring 6 and enters the inside, so that a force is generated by the leaf spring 6 to pull the tray 2 in the X1 direction. At this time, when the tapered surface 3a formed on the guide rail 3 located above the guide groove 5 comes into contact with the tapered surface 12a formed on the convex step portion 12 of the tray 2, as shown in FIG. The reaction force F of the force of pulling the tray 2 in the X1 direction by the leaf spring 6 is applied in a direction perpendicular to the tapered surface 12a, and a component force P downward (Z2 direction) is generated. Further, since the tapered surface 3a is inclined so as to expand from the inner surface of the guide groove 5 toward the open end, as shown in FIG. 13, the reaction force F of the pulling force by the leaf spring 6 is leftward (Y2 direction). As a component force Q of As a result, when the tray 2 is stored in the housing 1, the tray 2 is pressed against the top surface of the guide rail 3 located below the guide groove 5 by the above-mentioned component force P, and is opposed by the above-mentioned component force Q. It is pressed against the inner surface of the guide groove 5 formed between the guide rails 4 on the side.
[0021]
Therefore, in a state where the magazine M accommodating all the trays 2 in the housing 1 is loaded in the housing 20 shown in FIG. In the first guide groove 5, the component forces P and Q regulate the vertical and horizontal directions, and the reaction force F of the drawing force of the leaf spring 6 acts on the tapered surface 12a. Lattle noise between the guide rails 3 and 4 is prevented in the three-dimensional direction.
[0022]
When any one of the discs D in the magazine M is selected for reproduction or recording, the selected tray 2 is pulled out of the housing 1 as described above, and the disc D held on the tray 2 is chucked. Immediately after the tray 2 is pulled out, the tray 2 is returned to the housing 1 and is in a stored state. In this case, similarly to the case where the disk D is stored in the magazine M, the engaging projection 11 of the tray 2 pushes and expands the leaf spring 6 to enter the inside, and the force for pulling the tray 2 in the X1 direction is applied to the leaf spring 6. In the process of occurrence, a downward component (Z2 direction) and a leftward (Y2 direction) component force Q are generated at the contact portion of the tapered surface 12a, and when the tray 2 is stored in the housing 1, Lattle noise between the tray 2 and the guide rails 3 and 4 is prevented in the three-dimensional direction.
[0023]
As described above, in the disc changer magazine M according to the present embodiment, when the drawn tray 2 is stored in the housing 1, the reaction force F of the force by which the leaf spring 6 pulls the tray 2 into the housing 1 is perpendicular to the tapered surface 12a. The tray 2 can be pressed against the top surface of the guide rail 3 located below the guide groove 5 by the downward (Z2) component force P of the reaction force F. Therefore, when the tray 2 is pulled out of the housing 1 or transported in the middle of being housed in the housing 2, the tray 2 is smoothly moved in the X1-X2 direction by the clearance C secured between the parallel portions 7, 8 and the guide groove 5. Only when the tray 2 is stored in the housing 1, the tray 2 can be pressed against the guide rail 3 with a sufficient force to reliably suppress rattle noise. At this time, since the tapered surfaces 3a and 12a can be formed as structures having sufficient rigidity at the open end of the guide rail 3 and the convex step portion 12 of the tray 2, rattle noise can be reliably suppressed for a long period of time. it can.
[0024]
Further, since the tapered surface 3a is inclined so as to expand from the inner side surface of the guide groove 5 toward the open end, the tray 2 is horizontally moved by the leftward (Y2 direction) component Q of the reaction force F of the drawing force by the leaf spring 6. Position can also be regulated in the direction. As a result, when the tray 2 is stored in the housing 1, the position of the tray 2 is regulated in the three-dimensional direction (vertical direction, left / right direction, and front / back direction), so that rattle noise can be suppressed more reliably.
[0025]
In the above embodiment, the case where the tapered surfaces 3a, 12a are formed on both the opening end of the guide rail 3 and the convex step 12 of the tray 2 has been described, but either one of the tapered surfaces 3a, 12a is omitted. It is also possible.
[0026]
The unevenness relationship between the leaf spring 6 and the engagement protrusion 11 may be opposite to that in the above-described embodiment. That is, an Ω-shaped engagement recess is formed on the end surface of the tray 2 in the X1 direction, and the free end of the leaf spring 6 is The pull-in force of the tray 2 may be generated by fitting into the engagement concave portion.
[0027]
In the above embodiment, the case where the convex step 12 and the tapered surface 12a are formed so as to protrude toward the upper surface side of the tray 2 and the tapered surface 3a is formed on the bottom surface side of the guide rail 3 has been described. A convex step portion and its tapered surface may be provided on the bottom surface side of 2, and a tapered surface may be provided on the top surface side of the guide rail 3. In this case, the tray 2 is pressed against the bottom surface of the guide rail 3 located above the tray 2 during storage.
[0028]
【The invention's effect】
The present invention is implemented in the form described above, and has the following effects.
[0029]
A convex step is formed on the rear end side of the tray that slides on the guide rail in the storage direction, and a taper is provided on at least one of the convex step and the open end of the guide rail. When the tray is housed in the housing, the tray is pressed against the top surface or the bottom surface of the guide rail by utilizing the tapered portion and the retraction force of the spring member disposed in the housing. The tray can be moved smoothly along the guide rails during transportation when it is not stored, and only when the tray is stored in the housing, the tray is pressed against the guide rail with sufficient force to reliably suppress rattle noise. can do. At this time, the tapered portion can be formed as a structure with sufficient rigidity at the opening end of the guide rail or the convex step of the tray, so that rattle noise generated between the tray and the guide rail is reliably suppressed for a long time. A possible magazine for a disc changer can be realized.
[Brief description of the drawings]
FIG. 1 is a perspective view of a magazine for a disc changer according to an embodiment of the present invention.
FIG. 2 is a cross-sectional view showing the internal structure of the magazine.
FIG. 3 is a front view of a housing provided in the magazine.
FIG. 4 is a longitudinal sectional view of the housing.
FIG. 5 is an explanatory diagram of a guide rail provided in the housing.
FIG. 6 is a sectional view taken along line AA of FIG.
FIG. 7 is a sectional view taken along line BB of FIG. 5;
FIG. 8 is a plan view of a tray provided in the magazine.
FIG. 9 is a side view of the tray.
FIG. 10 is a bottom view of the tray.
FIG. 11 is a perspective view showing a main part of the magazine.
FIG. 12 is a diagram illustrating the operation of a tapered surface.
FIG. 13 is an explanatory diagram of the operation of the tapered surface.
FIG. 14 is a configuration diagram of a disc changer in which the magazine is used.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Housing 2 Tray 3, 4 Guide rail 3a Tapered surface (taper part)
5 Guide groove 6 Leaf spring (spring member)
7, 8 parallel portion 9 top plate 10 support piece 11 engaging projection (engaging portion)
12 Convex step 12a Tapered surface (tapered part)
13 Elastic piece 14 Pressing part M Magazine D disk for disc changer

Claims (2)

A box-shaped housing in which a plurality of sets of guide rails are provided on opposing inner side walls with one side opened, a spring member disposed in the inner part of the housing, and movable along the guide rails A plurality of disc holding trays, and an engagement portion is provided on a tip end side of the tray in the storage direction, and the engagement portion is locked by the spring member to store the tray inside the housing. In a magazine for a disc changer in which the engagement between the engaging portion and the spring member is released when the tray is pulled out from the opening,
A convex step is formed on the rear end side of the tray that slides on the guide rail in the storage direction, and at least one of the convex step and the open end of the guide rail is provided with a tapered part. When the tray is housed in the housing, the convex step and the open end of the guide rail come into contact with each other, and the reaction force of the pulling force generated by the engagement of the engaging portion with the spring member is reduced. A magazine for a disc changer, wherein the tray is pressed against a top surface or a bottom surface of the guide rail by acting on a tapered portion. 2. The magazine for a disc changer according to claim 1, wherein the tapered portion is inclined with respect to both a top surface and a bottom surface of the guide rail and a side surface of the guide rail.

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