JP2908393B2 - Disk storage magazine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disk changer for accommodating a plurality of disks such as CDs, and more particularly to a disk changer in which a plurality of trays on which disks are placed are provided in a case so as to be freely pulled out. Related to a disk storage magazine.

[0002]

2. Description of the Related Art FIG. 8 is a perspective view showing a general structure of a disk storage magazine used for a disk changer, FIG. 9 is a sectional view showing a state in which a tray and a disk are pulled out of a magazine case, and FIG. FIG. 3 is a plan sectional view showing the internal structure of a disk storage magazine as a comparative example with the present invention. The disc storage magazine 1 shown in FIG. 8 is housed in a case 3 such that a plurality of trays 2 such as six or eight are stacked so as to be freely drawn out, and a disc D is placed on each of the trays 2. Is placed. When the disc storage magazine 1 is loaded into the main body of the disc changer, one of the trays 2 in the case 3 is selected and pulled out from the case 3 by a drawer mechanism (not shown). As shown in FIG. 9, the disc D on the tray 2 pulled out is clamped on the turntable 4 of the reproducing unit. At this time, the disc D is slightly lifted from the tray 2. 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.

In the above-mentioned disk storage magazine 1, it is necessary to prevent the tray 2 housed inside from accidentally jumping out. Therefore, as in the comparative example shown in FIG. 10, it is preferable that the elastic member 7 made of a leaf spring is provided in the case 3. The resilient member 7 is attached to one inner surface, for example, on the inner side of the case 3 and has a front end 7.
“a” is bent in a substantially V-shape. In this case, on the side of the inner end of each tray 2, an engaging portion 2a having a triangular concave shape to which the tip portion 7a of the elastic member 7 elastically contacts is formed. In this comparative example, when the tray 2 is stored in the case 3, the tip 7 a
Is locked by the locking portion 2a of the tray 2, and the tray 2 is maintained in the inserted state. When the tray 2 is pulled out of the case 3, the tip portion 7a of the elastic member 7 is elastically deformed and comes off from the locking portion 2a.

[0004]

However, in the disk storage magazine 1 shown as a comparative example in FIG. 10, a hook portion 2d for being pulled out by a drawer mechanism on the device body side.
Is formed at the upper end of the tray 2 at the upper side in the figure, and the resilient member 7 inside the case 3 is provided at the lower side in the figure. Therefore, a part of the drawer mechanism on the device body side is locked by the hook 2d, and when a pulling force F2 is applied to the tray 2, the couple of the force F2 and the elastic force F of the elastic member 7 causes the tray 2 to be attached to the tray 2. A clockwise moment is generated. Due to this moment, the pressure contact force between the both end surfaces of the tray 2 and the inner surface of the case 3 (particularly, the positions indicated by (a) and (b) in FIG. 10) is increased, and the tray 2 can be pulled out smoothly. Disappears.

An object of the present invention is to solve the above-mentioned conventional problems, and an object of the present invention is to enable a tray to be smoothly pulled out of a case.

[0006]

According to the present invention, a plurality of trays on which disks are placed are housed in a case so as to be able to be pulled out of the case, and each of the trays has a boundary extending from its center in the width direction.
In a disk storage magazine provided with a drawer that applies a pulling force only to one side, the case and the tray
On one of the two sides, the other is elastically locked and the tray is
An elastic pressurizing unit is provided for holding the cartridge in a housed state.
The locking position by the elastic pressure part is
It is characterized by being arranged only on the same side as the part .

In the above, the locking by the elastic pressing portion
The tray is located at the back of the case and the tray is
The width of the disc installation section on the tray with the
In the area where there is no disc formed on the side
Preferably.

Further, at the front end of the tray in the insertion direction,
Is formed with a pinched portion protruding toward the back of the case,
The case has a leaf spring that locks the held portion from both sides.
A biasing member is provided, and a tip of the biasing member is elastic.
Preferably, it is a pressure unit.

[0009]

According to the present invention, the resilient position for holding the tray in the case and the position where the pull-out force acts on the tray are as follows.
Since the tray is disposed on the same side with respect to the center of the tray, a couple is unlikely to occur between the pullout force acting on the tray and the pullout resistance force of the tray due to the elastic pressure, so that the tray can be pulled out smoothly from the case. become.

Further, since the biasing member and the pressure receiving portion are provided at positions offset from the center of the tray, the space between the peripheral portion of the disk and the corner portion offset from the center in the case is reduced. The urging member and the portion to be pressed can be arranged by utilizing this. Therefore, for example, even if the protruding holding portion and the biasing member forming a pair that presses against the holding portion from both sides are arranged inside the case, the flat area of the case is increased by this arrangement. And the case can be reduced in size.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a plan sectional view showing an embodiment of a disk storage magazine according to the present invention, FIG. 2 is a plan view showing details of the tray shown in FIG. 1, FIG. 3 is an enlarged view of a portion B in FIG. FIG. 2 is an enlarged perspective view showing details of an elastic holding member shown in FIG. 1.
In the disk storage magazine 10 shown in FIG. 1, a plurality of (six in this embodiment) trays T are stored in a case 11 in a stacked state, and a disk D is placed on each of the trays T. ing. The case 11 has a box shape having an opening 11a on the right side in FIG. 1, and an elastic holding member 12 is provided on an opposing inner side surface 11b on the back side facing the opening 11a.
Is attached.

The elastic holding member 12, as shown in FIG.
The plane shape is integrally formed in a substantially C shape by a metal leaf spring. The elastic holding member 12 includes an urging member 12 a, the arms of which are formed in a C-shape, facing each other.
12a, and the pair of urging members 12a, 1
The same number of pairs 2 a are provided at the same pitch as the arrangement interval of the trays T stored in the case 11. Urging member 12
The respective tips of a and 12a are pressurizing portions 12b and 12b bent outward. This opposing pressing section 12
The inner width dimension between b and 12b is W3. Elastic holding member 1
For example, two mounting holes 12c are formed in the flat surface of the case 2. The elastic holding member 12 is fixed to the inner side surface 11b of the case 11 by means of the mounting holes 12c.

As shown in FIGS. 1 and 2, each tray T has a circular mounting groove 14a having an inner diameter slightly larger than the diameter of the disk D on the upper surface. A semicircular lower groove 14b is formed on the lower surface on the front end side (right side in FIG. 2) of the tray T in the pulling-out direction. A portion where the upper groove 14a and the lower groove 14b overlap with each other is a notch 1 that penetrates the tray T in both front and back directions.
4c. The notch 14c is provided in the mounting groove 14a.
Extending to the center of the In a state where the disk D is mounted in the mounting groove 14a, the center of the disk D is located on the tray T at the portion of the notch 14c shown in FIG.
The lower surface (recording surface) of the disk D is exposed to the lower surface of the tray T at the portion indicated by (2).

At the front end of the tray T in the pulling-out direction, a remaining portion formed by forming a lower groove 14b on the lower surface side is a connecting portion 15 which does not penetrate vertically. A hook-shaped pull-out portion 17 for pulling out the tray T is formed at a position above the right end of FIG. 2 of the connecting portion 15 so as to protrude therefrom. , And a pulling force F0 (see FIG. 2) is applied to each tray T.
See also). At the upper position in the drawing of the insertion side end (the left end in FIG. 2) of each tray T, a pinched portion 16 is formed that protrudes in the direction of entry and exit (A direction) of the tray T.

As shown in FIG. 3, in the planar shape of the held portion 16, first inclined surfaces 16c, 16c are formed on both sides of the front end. On both sides of the sandwiched portion 16 in the vertical direction in FIG. 3, second inclined surfaces 16 d, 16 d serving as elastic pressure portions are formed, and the first inclined surfaces 16 c, 16 c and the second inclined surface 16 c are formed. The boundary portions between the inclined surfaces 16d and 16d are wide portions 16e and 16e which have traveled to both sides. The angle formed by each of the second inclined surfaces 16d, 16d with a line perpendicular to the direction A is indicated by θ. Also, the wide portion 16e,
The outer width dimension of 16e is W1, and this outer width dimension W1 is
It is larger than the inner width dimension W3 of the pressing portions 12b, 12b of the elastic holding member 12. The base of the held portion 16 is a neck having a small width, and the outer width W2 of the neck is smaller than the inner width W3 of the elastic holding member 12 in the free state.

When the tray T is inserted into the case 11,
The clamped portion 16 is elastically held by the pressurizing portions 12b of the elastic holding member 12. In particular, the pressing portion 12b,
12b, the second inclined surfaces 16d and 16d of the held portion 16 are formed.
When d is clamped, the elastic force of the pressurizing portions 12b, 12b
The tray T is determined by the inclination angle θ of the inclined surfaces 16d, 16d.
Is generated in the case 11.
Assuming that the elastic force applied by one pressing unit 12b in the vertical direction to the second inclined surface 16d is F, the tray T
The force F3 drawn into 1 is as shown in Expression 3.

[0017]

[Equation 3] F3 = 2 · F · cosθ

As shown in FIG. 1, the fitting position between the elastic holding member 12 and the to-be-clamped portion 16 and the position where the hook-shaped lead-out portion 17 is formed are aligned with the center line OO (see FIG. 1 (see FIG. 1). Further, in this embodiment, the pull-in force F3 applied to the tray T by the elastic holding member 12 and the pull-out force F0 applied to the pull-out portion 17 by the pull-out mechanism of the device body of the changer are substantially opposite to each other on the same line. To work.

A plurality of lock members 13 for locking each tray T housed in the case 11 are provided in the vicinity of a portion of the case 11 where the elastic holding member 12 is attached. As shown in FIG. 3, the lock members 13 are rotatably supported by a support shaft 18 that protrudes integrally from the bottom surface 11 c of the case 11. Lock member 13
Are the same number as the trays T and are arranged at the same pitch as the arrangement interval of the trays.
Are biased clockwise in FIG. 3 by a not-shown torsion spring or the like.

The individual lock members 13 are connected to the support shafts 18.
It has a fitting portion 13a, an operation portion 13b, and a locking portion 13c having a claw-shaped distal end. Normally, the locking portion 13c is engaged with the edge 19a of the projection 19 formed on the tray T by the clockwise urging force applied to each lock member 13, so that each tray T It is locked while being housed in the case 11. The operation unit 13 b is provided with a window 11 formed in the case 11.
When the disk storage magazine 10 is removed from the main body of the apparatus, the lock member 13 is rotated in a counterclockwise direction by pressing the individual operation unit 13b exposed from the window 11d with a finger. Thus, the lock on the tray T by the locking portion 13c is released. When the magazine 10 is loaded in the device main body of the changer, the operation unit 13b of the lock member 13 corresponding to the tray T to be selected is pressed by the lock release mechanism in the device main body, and the lock on the tray T is released. Is done.

Next, the operation of moving the tray T in and out of the disk storage magazine 10 will be described. When one of the disks D is selected in a state in which the disk storage magazine 10 is loaded in the device main body of the changer, the drawer 17 of the tray T on which the disk D is mounted is moved to the inside of the device main body. The tray T is pulled out to a position where a part thereof remains in the case 11 as shown in FIGS. 8 and 9. In this state, the center of the disk on the tray T is clamped on the turntable of the reproducing unit, and the disk D is rotated while being lifted from the bottom surface of the mounting groove 14a of the tray T. Further, the optical pickup faces from the lower surface side of the tray T via the portion (2) of the cutout portion 14c, and the reproducing operation is performed.

When the tray T is returned into the case 11 after the reproduction is completed, the tray T is forcibly pushed into the case 11 by the drawer mechanism locked by the drawer 17. At the end of this returning operation, the urging members 12a, 12
The first inclined surfaces 16c, 16c of the clamped portion 16 abut against the pressing portions 12b, 12b of (a) (see FIG. 5A). Further, when the tray T is forcibly pushed in by the pull-out mechanism, the pressurizing portions 12b, 12b spread and get over the wide portions 16e, 16e of the held portion 16, and are pushed onto the second inclined surfaces 16d, 16d serving as the elastic pressure portions. It starts to slide. The forcible return force by the pull-out mechanism is released at this point.

Thereafter, the tray T is controlled by the elastic clamping force of the pressing portions 12b, 12b of the elastic holding member 12 and the inclination angle θ of the second inclined surfaces 16d, 16d of the clamped portion 16.
Is drawn into the case 11 by the aforementioned pulling force (F3 = 2 · F · cos θ). At this time, the held portion 16 formed on the tray T is
Since the tray T is held from both sides by b and 12b, there is no force component for pressing the tray T against the inner wall surface of the case. Therefore, there is no frictional resistance between the tray T and the inner surface of the case, and the problem that the tray T cannot be reliably pulled in does not occur.

As shown in FIG. 3, when the tray T is completely pushed into the case 11,
The locking portion 13c of FIG.
And the tray T is locked. As described above, when one of the trays is selected and pulled out by the drawer mechanism, the operating portion 13b of the lock member 13 corresponding to the selected tray T is pushed by the lock release mechanism, and The lock is released, the drawer mechanism is locked by the drawer 17, and the tray T is pulled out of the case 11 by the drawer force F0.

At the time of pulling out, the pull-in force (F3 = 2 · F · cos θ) by the elastic holding member 12 becomes a resistance force for pulling out the tray T. However, as shown in FIG. 1, the opposing forces F0 and F3 are both located above the center line OO of the tray T in the drawing, and in this embodiment, the forces F0 and F3 are substantially collinear. I have. Therefore, a couple between F0 and F3 hardly occurs, and the tray T is smoothly pulled out.

Next, the embodiment shown in FIGS. 6 and 7 will be described. FIG. 6 is a plan sectional view showing a disk storage magazine 10A according to a second embodiment of the present invention, and FIG. 7 is a VII-V of FIG.
FIG. 2 is a partial sectional view taken along line II. In this embodiment, a recess 14d is formed at the front edge in the insertion direction of each of the plurality of trays Ta. The recess 14d is provided in the disc mounting groove 14a.
Extends to the inside. The case 11 has a bottom 1
A cylindrical disk pressing member 25 rising from 1c is provided. Each of the plurality of trays Ta is case 1
1 and the pressing portion 12 of the elastic holding member 12
b, 12b are the second inclined surfaces 16d, 16
d, the disk pressing member 25
Enters the recess 14d of the tray Ta. And disk D
The front edge in the insertion direction of the disk contacts the disk pressing member 25.

The tray Ta is pulled into the case 11 by the force of F3 due to the elastic clamping force of the pressing portions 12b, 12b of the elastic holding member 12. As shown in FIG. The disc D is pressed against the tray Ta in the direction opposite to the pull-in direction by the reaction force f3. Due to this reaction force f3, the right edge of the disk D in FIG. 7 is moved to the left end face (the mounting groove 14) of the connecting portion 15 of the tray Ta.
15a). Therefore, when the tray Ta is pulled into the case 11, the disks D on all the trays Ta are pressed against the end surfaces 15a, and the disks D move in the mounting grooves 14a of the tray Ta. Therefore, no rattling sound of the disc D is generated.

In the embodiment shown in FIGS. 6 and 7, the disk pressing member 25 is a rigid body having a columnar shape. However, the disk pressing member 25 has elasticity in the f3 direction with respect to each disk D on the tray Ta. May be applied. In contrast to the above embodiments, an elastic holding member 12 made of a leaf spring is provided on the end face of the tray T,
The held portion 16 may be formed to protrude from the inner surface.

[0029]

As described above, according to the present invention, when pulling out the tray, no excessive couple is generated between the pulling force of the tray and the force holding the tray in the case, and the tray can be drawn smoothly. Will be performed.

Further, the locking position of the elastic pressing portion is shifted from the center of the tray by a margin of the disc,
By arranging using the space between the corners offset from the center in the case, the size of the case can be reduced.
You.

[Brief description of the drawings]

FIG. 1 is a plan sectional view showing an embodiment of a disk storage magazine.

FIG. 2 is a plan view showing details of a tray housed in the case shown in FIG. 1;

FIG. 3 is an enlarged view of a portion B in FIG. 1;

FIG. 4 is an enlarged perspective view of the elastic holding member shown in FIG.

FIGS. 5A and 5B are explanatory diagrams of an operation when a held portion is held by elastic holding.

FIG. 6 is a plan sectional view of a disk storage magazine showing a second embodiment of the present invention.

FIG. 7 is a partial sectional view taken along line VII-VII of FIG. 6;

FIG. 8 is a perspective view showing the structure of a conventional disk storage magazine.

FIG. 9 is an explanatory diagram showing a state where the disk D is pulled out from the disk storage magazine.

FIG. 10 is a plan sectional view showing the internal structure of a disk storage magazine according to a comparative example of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 Case 12 Elastic holding member 12a Biasing member 12b Pressing part 13 Lock member 14a Mounting groove 14d Concave part 16 Clamped part 16c First inclined surface 16d Second inclined surface (elastic pressure receiving part) 17 Pull-out part 25 Pressure member T, Ta Tray D Disc

Claims (3)

(57) [Claims] A plurality of trays 1. A disc is mounted is pulled out freely accommodated in the case, the tray, its
Withdrawal force only on one side from the center in the width direction of the
In the disk storage magazine provided with a drawer to be used, one of the case and the tray is elastically locked with the other.
The elastic pressing part that holds the tray in the case
And the locking position by the elastic pressing portion is located at the center.
A disk storage magazine, which is disposed only on the same side as the drawer as a boundary . 2. The method according to claim 2 , wherein the locking position by the elastic pressing portion is
On the back side of the case, the tray is stored in the case.
In the width direction of the disc installation section on the tray
A contract that is provided in an area where no
The disk storage magazine according to claim 1. 3. A case is provided at a front end of the tray in the insertion direction.
A to-be-clamped portion protruding in the depth direction is formed, and
Is a bias made of a leaf spring that locks the clamped portion from both sides.
A member is provided, and a tip of the urging member serves as an elastic pressing portion.
3. The disk storage magazine according to claim 2, wherein