JP2923271B2 - 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. 6 is a perspective view showing a general structure of a disk storage magazine used for a disk changer, and FIG. 7 is a sectional view showing a state in which a tray and a disk are pulled out of a magazine case. The disc storage magazine 1 shown in FIG. 6 is housed in a case 3 in a state where a plurality of trays 2 such as six or eight are stacked and can be pulled out freely.
Is placed. When the disk storage magazine 1 is loaded into the apparatus body of the disk changer, the case 3
One of the trays 2 is selected and pulled out of the case 3 via a hook 2d by a pull-out mechanism (not shown). The disk D on the tray 2 pulled out is
As shown in FIG. 7, the disc D is clamped on the turntable 4 of the reproducing unit, and the disc D is slightly lifted from the tray 2 at this time. Then, the turntable 4 and the disk D are rotationally driven by the spindle motor 5,
The optical pickup 6 reproduces recorded music and the like on the disk D.

[0003]

In the disk storage magazine 1 of this type, a circular mounting groove 2e is formed on the upper surface of the tray 2, and the disk D is mounted on this portion.
As shown in the figure, the inner diameter of the mounting groove 2e is larger than the diameter of the disk D.
Can move slightly. In the case 3, since all of the plurality of stored disks D are movable on the tray 2, the magazine 1 is being transported, or the magazine 1 is loaded in the changer device main body. As a result, rattling noises of all the discs D are generated in the magazine 1 due to the vibration of the vehicle body.
This type of rattling noise is harsh and causes a reduction in commercial value.

An object of the present invention is to solve the above-mentioned conventional problems, and an object of the present invention is to prevent a disk from rattling on a tray by utilizing an elastic holding force or pulling force acting on the tray. And

[0005]

SUMMARY OF THE INVENTION The present invention is directed to a disk storage magazine in which a plurality of trays on which disks are mounted are removably stored in a case. However, on the other side, an urging member is provided to hold the tray at a predetermined position in the case by pressing the pressure-receiving portion, and the tray is held in the case by the pressure of the pressing member and the pressure-receiving portion. A disc pressing member that presses the disc so that it does not move on the tray in the pressed state.

For example, the tray is urged by the urging member in a direction in which the tray is pulled inward of the case, and the disk pressing member moves the disk to the inner edge of the mounting groove on the tray by a reaction force of the pulling force. It will be imposed.

[0007]

In the present invention, the disc is pressed by the disc pressing member so that the disc does not move on the tray while the tray is held by the urging member. Therefore, the disk does not move on the tray due to the vibration, and rattling noise can be prevented.

In particular, since the disk is pressed by the disk pressing member in a state where the pressing member is pressing the tray, the disk indirectly exerts the elastic biasing force of the biasing member. As a result, excessive pressing force does not act on the disk, and it is possible to prevent the disk from being excessively warped.

In particular, when the tray is pulled in by the urging member and the disk is pressed against the inner edge of the mounting groove of the tray by the reaction force of the pulling force, if the urging member is pulled into the tray and the disc is pressed. , And the structure can be simplified without increasing the number of components in the case.

[0010]

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 an enlarged view of a portion B in FIG. 1, and FIG. 3 is an enlarged perspective view showing details of an elastic holding member shown in FIG. It is. 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. Case 11 is shown in FIG.
Has a box-shaped opening 11a on the right side.
An elastic holding member 12 is attached to the inner surface 11b on the inner side opposite to the inner surface 1a.

The elastic holding member 12 is, 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 portion 2 and 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 FIG. 1, each tray T has on its upper surface a circular mounting groove 14a having an inner diameter slightly larger than the diameter of the disk D. A semicircular lower groove 14b is formed on the lower surface on the front end side (right side in FIG. 1) of the tray T in the pulling-out direction. The overlapping portion of the mounting groove 14a and the lower groove 14b is a cutout portion 14c that penetrates the tray T in both front and back directions. The notch 14c extends to the center of the mounting groove 14a. In a state where the disk D is mounted in the mounting groove 14a, the notch 14c is shown in FIG.
The central portion of the disk D is exposed to the lower surface of the tray T at the portion indicated by, and 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. This connecting part 15
1, a hook-shaped drawer 17 for pulling out the tray T is formed so as to protrude, and a part of a drawer mechanism such as a disc changer in the apparatus main body is engaged with the drawer 17. Then, a pull-out force F0 is applied to each tray T. Insertion end of each tray T (left end in FIG. 1)
In the upper part of the figure, the direction in which the tray T enters and exits (A direction)
A holding portion 16 protruding along is formed.

As shown in FIG. 2, first inclined surfaces 16c, 16c are formed on both sides of the front end of the holding portion 16 in a plan view. On the both sides in the vertical direction in FIG. 2 of the held portion 16, second inclined surfaces 16d, 16d serving as resilient portions are formed, and the first inclined surfaces 16c, 16c and a second 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.

[0016]

[Equation 3] F3 = 2 · F · cosθ

As shown in FIG. 1, the fitting position between the elastic holding member 12 and the clamped portion 16 and the position where the hook-shaped drawing portion 17 is formed are on the same side with respect to the center line of the tray T. (Both are upper sides in 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 the trays T accommodated in the case 11 are provided in the case 11 near the portion where the elastic holding member 12 is attached. As shown in FIG. 2, 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. 2 by a torsion spring (not shown) 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. 6 and 7, the tray T is pulled out to a position where a part of the tray T remains in the case 11, as shown in FIGS. 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 (see FIG. 4A). 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 the second inclined surfaces 16d, 16d.
16d comes 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.

Further, as shown in FIG. 2, 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 of the tray T in the drawing, and in this embodiment, the forces F0 and F3 are substantially collinear. Therefore, a couple between F0 and F3 hardly occurs, and the tray T is smoothly pulled out.

FIG. 5 is a partial cross-sectional view taken along line VV of FIG. In FIGS. 1 and 5, a plurality of trays T are each formed with a recess 14d at the front edge in the insertion direction. The recess 14d extends to the inside of the disk mounting groove 14a. The case 11 is provided with a columnar disk pressing member 25 rising from the bottom surface 11c.
Each of the plurality of trays T is inserted into the case 11,
When the pressing portions 12b, 12b of the elastic holding member 12 reach the second inclined surfaces 16d, 16d of the held portion 16, the disk pressing member 25 is moved to the concave portion 1 of the tray T.
Enter within 4d. Then, the leading edge of the disk D in the insertion direction contacts the disk pressing member 25.

The tray T is provided with the pressing portion 1 of the elastic holding member 12.
The disk D is drawn into the case 11 by the elastic force of F3 due to the elastic clamping force of 2b and 12b. Pressurized in the opposite direction. Due to this reaction force f3, the right edge portion of the disk D in FIG. 5 is pressed against the left end surface 15a (the inner edge of the peripheral surface of the mounting groove 14a) of the connecting portion 15 of the tray T. Therefore, when the tray T is pulled into the case 11, all the trays T
The upper disk D is pressed against the end face 15a, and the disk D is placed in the mounting groove 14a of the tray T.
Does not move, and no rattling sound of the disc D is generated.

In the embodiment shown in FIGS. 1 and 5, the disk pressing member 25 is a cylindrical rigid body.
May be applied elastically in the direction f3. In addition, contrary to the above embodiment, an elastic holding member 12 made of a leaf spring is
The holding portion 16 may be formed so as to protrude from the inner surface of the first member 1.

[0028]

As described above, according to the present invention, the disc on the tray is pressurized so that the disc on the tray does not move in a state where the tray is stored in the case. No rattling noise is generated.

Further, since the disc is pressed by utilizing the force by which the urging member holds or pulls the tray, the disc is elastically pressed even if the disc pressing member is rigid. Will be.

[Brief description of the drawings]

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

FIG. 2 is an enlarged view of a portion B in FIG.

FIG. 3 is an enlarged perspective view of the elastic holding member shown in FIG. 1;

FIGS. 4A and 4B are explanatory diagrams of an operation when a held portion is held by elastic holding.

FIG. 5 is a partial cross-sectional view taken along line VV of FIG. 1;

FIG. 6 is a perspective view showing the structure of a conventional disk storage magazine.

FIG. 7 is an explanatory diagram showing a state where a disk D is pulled out from a disk storage magazine.

[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 Tray D Disc

Claims (2)

(57) [Claims] 1. A disc storage magazine in which a plurality of trays on which discs are mounted are housed in a case so as to be able to be pulled out in a case. An urging member is provided to hold the tray at a predetermined position in the case by pressing the pressing portion, and the disc is loaded into the tray while the tray is held in the case by the pressing force of the pressing member and the pressed portion. A disk storage magazine provided with a disk pressing member for pressing the disk so as not to move. 2. The tray is urged by the urging member in a direction in which the tray is pulled inward of the case, and the disk pressing member moves the disk to the inner edge of the mounting groove on the tray by a reaction force of the pulling force. The disk storage magazine according to claim 1, wherein the magazine is pressed.