JPH0253254A - Manual disk loading device - Google Patents

Abstract

PURPOSE:To attain the simplification of constitution, miniaturization and low pricing by providing a loading mechanism operated by an insertion pressing force by which a CD caddie is manually operated. CONSTITUTION:When the caddie 10 is manually inserted from the insertion opening of a caddie holder 20, a shutter lever 21 is turned by the inserting force against the pressing force of a spring, and it is connected to a recessed part at the tip of the caddie 10 after the tip part of the caddie is slided and the shutter 10a of the caddie 10 is opened. At this time, since the locking of an eject lever 40 is released by pressing the pressing part of a lock lever 42 by the tip of the caddie 10, the eject lever 40 is slided forward on a chassis 50, and the caddie holder 20 descends on a disk reproducing mechanism part 30, then, a disk 11 is placed on a turntable 30a via the aperture of the caddie holder 20. In such a way, a loading device miniaturized and with simple constitution can be obtained, which attains the low pricing.

Description

DETAILED DESCRIPTION OF THE INVENTION (A) Field of Industrial Application The present invention relates to a disc loading device that mounts a caddy containing a disc (for example, a compact disc) and places the disc inside the caddy on a turntable.

(b) Conventional technology Conventionally, this type of compact disc (hereinafter referred to as CD)
The loading device uses electric operation to load the caddy and automatically places the CD on the turntable.

(c) Problems to be Solved by the Invention However, such conventional mounting devices have problems in that they are complicated in structure and large in size.

This invention was made in consideration of these circumstances,
To provide a disk loading device that has a simple configuration that allows a CD caddy to be inserted and loaded by manual operation, and that can be made smaller and lower in price.

(d) Means for Solving the Problems This invention includes a disc playback mechanism section that includes a turntable and a pickup on the top surface, a chassis that supports the disc playback mechanism section with a vibration isolating member, a caddy insertion slot on the front surface, and a caddy insertion slot on the bottom surface. A box-shaped caddy holder having an opening corresponding to the caddy's shutter opening 17, accommodating a caddy that is manually inserted from the front to the rear, and having a plurality of guide pins erected outside on both sides. The caddy holder is rotatably provided, and is rotated by the insertion force of the caddy, slides the caddy's tip, opens the caddy's shutter, and then locks in the caddy's tip recess and is released. a spring-biased lever that rotates in the opposite direction to close the caddy shutter and simultaneously eject the caddy from the caddy holder; and a spring that biases the top surface of the caddy holder vertically toward the shunting direction. , is installed on the chassis so as to be slidable horizontally and in the front-rear direction, supporting the guide pin in a slidable manner, and separating the caddy holder by a predetermined distance from the turntable when sliding, and separating the caddy holder from the disc when sliding. It has an eject lever that is lowered onto the playback groove and places the disc on the turntable through the opening, a pressing part that can come into contact with the tip of the caddy, and a locking part that locks the eject lever. The caddy is movably supported, and when the caddy is completely inserted into the caddy holder, a pressing part is pressed on the tip of the caddy to release the lock of the eject lever, while when the eject lever slides, the eject lever is locked and the caddy holder is simultaneously This is a manual disc loading device equipped with an opening and a lug that presses the tip of the caddy inserted into the caddy to release the locking of the yutter lever.

(e) Operation When the caddy is inserted through the insertion opening of the caddy holder, the shutter lever rotates against the spring bias due to the insertion force, slides the caddy tip, opens the shutter of the caddy, and then releases the caddy. It locks into the recess at the tip. At this time, when the tip of gear 1 presses the pressing part of the lock lever, the eject lever is unlocked, so the eject lever slides forward on the chassis, and the caddy holder moves into the disc player. The disc is lowered onto the groove and placed on the turntable through the opening of the caddy holder.

Also, when ejecting the caddy, when the eject lever is manually moved backward, the eject lever is locked by the engaging part of the lock lever, and at the same time, the pressing part of the lock lever presses the tip of the caddy, and the shutter lever moves the tip of the caddy. When the caddy is removed from the recess, the shutter lever is rotated by the biasing force of the spring, closing the shutter of the caddy and moving the caddy toward the insertion opening, causing the rear end of the caddy to protrude from the insertion opening. The caddy is easily ejected.

(f) Examples The present invention will now be described in detail based on examples shown in the drawings. This invention is not limited by this.

Figure 6(a) is a perspective view of the caddy viewed from above;
Figure (b) is a perspective view of the caddy seen from the bottom, and Figure 7 (
6(a) and 6(b) correspond to FIGS. 6(a) and 6(b), respectively, with the shutter open. In these figures, lOa is a shutter tab provided on the caddy lO so as to be slidable in the direction of arrow CD. Shutter tab is a shutter spring that biases shutter fOa in the direction of arrow C, and shutter 10a is opposed to the biasing force of shutter spring tab. When the caddy IO is slid in the direction of the arrow, the shutter is opened as shown in FIG. 7(a), and the compact disc 11 accommodated in the caddy IO is exposed from the opening 10e. IOc, 10d is a positioning hole, lof is an engaging part, lo
g is a recess.

FIG. 1 is an exploded explanatory view showing the configuration of an embodiment of the present invention, in which 20 is a caddy holder, 30 is a CD playback mechanism, and 40 is an eject lever 50.

A shutter lever 21 is rotatably attached to the caddy holder 20 by a fulcrum pin 20a, and the shutter lever 21 is provided with a shutter lever pin 21a projecting downward. Shutter lever 2
1 and the caddy holder 20 is a spring 2t.
b is stretched, and the shutter lever 21 is always urged in the direction of arrow H. When the caddy 10 is manually inserted into the caddy holder 20 in the direction of the arrow, the shutter lever pin 21a engages with the engaging portion 10f of the caddy IO in conjunction with the insertion operation, and the shutter lever 21
rotates in the direction of arrow G against the biasing force of spring 21b,
Move the shutter 10a in the direction of the arrow. Guide pins 20b are provided upright on both sides of the caddy holder 20, and engage with the engaging portion 40a of the eject lever 40 to guide the caddy holder 20 in the directions of arrows E and F.

20c is a connecting pin and is connected to the hole 30f of the CD playback mechanism section 30.
, 30g so as to be slidable in the directions of arrows E and F to prevent the caddy holder 20 from being displaced in the horizontal direction with respect to the CD playback mechanism 30. The hole 20d is bored so that the caddy receiver of the CD reproducing mechanism section 30 faces the bottle 30h, and the bottle 30h passes through the hole 20d. The hole 20e is bored to face the positioning bin 304, and the positioning bin 30i passes through the hole 20e to form the positioning hole 10c of the caddy IO.

10d. Caddy 1G
As C falls down as explained below, these bins allow C
It is supported at a predetermined height on the D reproduction mechanism section 30.

Note that at this time, the disc II is placed on the turntable 30a and can rotate independently of the caddy 10. The holes 2Of are provided with shafts 50a and 5 erected in the chassis 50.
0b are passed through each with a certain gap. 20g
Reference numeral 20h indicates a protruding portion for fixing the conical spring 22, a presser portion 20h is provided on the upper surface of the caddy holder 20 to prevent the shutter lever 2.1 from floating, and a hole 20i is an escape hole for a lock lever 42, which will be described later.

The CD playback mechanism section 30 has a turntable 30 on its top surface.
A and a pickup 30b are provided, but since the details of the pond regeneration mechanism are well known, their explanation will be omitted. The holding hole 50 of the CD playback mechanism section 30 and the shaft 50. The lower end of a vibration isolating rubber 33 is attached to d, and the CD playback mechanism section 30 is elastically held on the chassis 50 by the vibration isolating rubber 33. A regulating sleeve 31 is inserted into the hole 30c, and the regulating sleeve 3N is fitted with a screw 32.
It is attached to the screw hole 50c of the fiber optics 50. Note that the regulation sleeve 31 prevents the CD playback mechanism 3
0 is installed with the vibration isolating rubber 33 slightly bent in the direction of arrow F. Also, the diameter of the hole 30c is the same as that of the regulating sleeve 3.
1, the movement of the CD playback mechanism section 30 in the direction of arrow E is restricted by the restriction sleeve 31.
However, some movement in the horizontal direction is possible. 30e is an escape hole for the lock lever 42, and 30j is a hole through which the sleeve 50b is passed.

The eject lever 40 includes pongee 50a, 50b and a guide pin 50h that are erected on a chassis 50.

50i is inserted into the guide holes 40b, 40c, and 40d so that it can be slid on the chassis 50 in the directions of arrows A and B, and the spring 41 tensioned between the spring hook 40g and the guide pin 5 (N) keeps the guide pin 5 (N) in the direction of the arrow. 40a is an engaging portion that engages with the guide pin 20b;
0e (40d).

is an engaging portion that engages with the engaging portion 42b of the lock lever 42;
40f is a lock portion that locks the engaging portion 42b.

The lock lever 42 is rotatably inserted into the shaft 50a and is prevented from being removed by an E-ring 52, and a spring hook 42c
, 50e, and is constantly biased in the direction of arrow G by a spring 51 stretched between them. The suppressing part 42a is the caddy holder 2
The lock lever 42 is provided so that it can be inserted into the lock lever 42 and come into contact with the tip of the caddy 10.

Note that 50f is a pin provided on the support 50 to support the upper end of the conical spring 22; 1.50g is a pin for fixing the conical spring 22; The conical spring 22 has shafts 50a and 50b.
, and its upper end is fixed with an E-ring 52. Further, 50j is a guide hole through which the guide pin 20b passes and guides it in the directions of arrows E and F.The above operation will be explained with reference to FIGS. 2 to 5. When inserting the caddy 10, first, when the caddy 10 is manually inserted into the caddy holder 20 to the position shown in FIGS. 2 and 3, the engaging portion 10f and the shutter lever bin 21a are engaged. Further, when the caddy 10 is inserted in the direction of the arrow, the shutter lever 21 opens the shutter 10a while rotating in the direction of the arrow G, and is locked in the shutter lever pin 21a or the recess log at the tip of the caddy 10, and the caddy 10 and the shutter lever 21 movement is fixed. Furthermore, when the caddy 10 is pressed in the direction indicated by the arrow, the caddy holder 20 and the CD playback mechanism section 30 move due to the horizontal deflection of the vibration isolating rubber 33, which causes the tip of the caddy 10 to move toward the lock lever 4.
Press the second pressing part 42a. When the lock lever 42 rotates in the direction of arrow H and the locking portion 42b is disengaged from the lock lever 40f, the eject lever 40 slides in the direction of arrow B due to the biasing force of the spring 41, and the locking portion 402L moves the guide pin 20 b moves in the direction of arrow F. Along with this, the caddy lO moves in the same direction, the caddy holder is supported by the bin 30h and the positioning bin 30i, and the caddy holder 20 that accommodates the caddy 10 is moved.
and the CD playback mechanism section 30 are integrated. At this time, the biasing force of the conical spring 22 is set so as to displace the vibration isolating rubber 33 and create a gap between the upper end of the regulating sleeve 3I and the CD reproducing mechanism section 30. In other words, caddy lO
The shutter 10a is opened while the caddy 10 is being inserted into the caddy holder 20, and the caddy holder 20 falls onto the CD playback mechanism 30 at the same time as the insertion of the caddy 10 is completed. Since the caddy holder 20 is positioned above the CD playback mechanism 30 in the horizontal and vertical directions, the CD accommodated in the caddy 10 is placed on the turntable 30a with high accuracy (see FIGS. 5 and 5). (See Figure 6).

Note that when the caddy IO is pushed in the six directions of the arrows when it is fitted into the recess at the tip of the caddy 10 as described above, the caddy holder 20 and the CD playback mechanism 30 move the anti-vibration rubber 33 in the direction of the arrow B. It moves by the distance of the gap provided between the hole 2Of and the shaft 50a50b while deforming the shaft 50a50b. At this time, the pressing part 4 of the lock lever 42
2b and the lock portion 40f are disengaged. In this state, as described above, the eject lever 40 starts moving in the direction of arrow B, and the engaging portion 42b is engaged with the engaging portion 40e. Then, the caddy holder 20 and the CD reproducing mechanism section 30 are pulled back in the direction of arrow B by the elastic force of the vibration isolating rubber 33, and the gap is maintained between the hole 2Of and the shafts 50a, 50b. Therefore, a gap is also ensured between the pressing portion 42a of the lock lever 42 and the caddy IO. Further, since the caddy holder 20 and the CD reproducing mechanism section 30 are stopped from moving downward in the F direction by the vibration isolating rubber 33, a gap is also secured between the guide pin 20 and the engaging section 40a. In other words, the CD reproducing mechanism section 30 on which the caddy holder 20 is mounted is supported from above and below only by the spring 22 and the vibration isolating rubber 33, so that it is in a completely floating state without contacting any other parts.

Next, to eject the caddy 10 from the caddy holder, the eject lever 40 is pushed in the six directions of the arrows against the biasing force of the spring 41. As a result, the engaging portion 40a engages the guide pin 20 with its slope portion.
Caddy holder 20 is raised in the direction of arrow E while supporting b.

At that time, first, the CD playback mechanism section 30h<regulation sleeve 3
1, and then the lock lever 42 is rotated in the direction of arrow G by the biasing force of the spring 51. At this time, the guide pin 20b is located at the horizontal part of the engagement part 40a, and the caddy 10
When the camera starts moving in the direction of arrow B, the shutter lever 21
21a comes off from the recess at the tip of the caddy, and the shutter lever moves to arrow H due to the biasing force of spring 21b.
rotate in the direction. As a result, the caddy IO is ejected in the direction of arrow B, and the shutter 10a is closed.

In this way, the caddy holder 20 and the CD playback mechanism 30 are supported on the chassis 50 in a completely floating state, so vibrations from the chassis are effectively prevented. In addition, the caddy lO can be placed in the caddy holder 20.
When the caddy holder 20 is not attached to the CD playback mechanism 30, its movement in the direction of arrow E is restricted by a regulating sleeve 31, and the caddy holder 20 is connected to the CD playback mechanism 30 by a connecting pin 20c, and the caddy holder 20 is connected to the CD playback mechanism 30 by a connecting pin 20c. Since the pin is fixed to the horizontal portion of the engaging portion 40a by being pressed by the conical plate 22, there is no change in position when the caddy 10 is inserted, and the caddy 10 is easily inserted.

Furthermore, since the CD playback mechanism section 30 is held between the spring 22 and the anti-vibration rubber 33 and maintained in a floating state, the resonance frequency is determined from the elasticity of both, making it possible to select a wide range of anti-vibration frequencies. It can be applied to automobiles and computer terminals, which have severe usage conditions.

(G) Effects of the Invention According to the present invention, there is provided a disc mounting device that is small in size and has a simple configuration, in which a caddy can be manually mounted. Furthermore, the caddy after being installed is supported by only the vibration-proofing rubber and the spring together with the disc playback mechanism, and does not come into contact with other members, so that a complete vibration-proofing structure can be obtained.

Furthermore, since the disc playback mechanism is held in a floating state by being sandwiched between the spring and the vibration isolating member,
The resonant frequency is determined based on the elasticity of both discs, and a wide range of resonant frequencies can be selected, thereby providing a disc mounting device that can be used in automobiles and computer terminals, which have severe usage conditions.

[Brief explanation of the drawing]

FIG. 1 is an exploded perspective view showing an embodiment of the invention, FIG. 2 is a top view of the embodiment shown in FIG. 1, FIG. 3 is a side view of FIG. 2, and FIGS. 4 and 5 are FIG. 2 and FIG. 3 correspond to the usage state of the embodiment shown in FIG. 1, and FIGS. FIG. 7(a) is a perspective view and a bottom perspective view.
and FIG. 7(b) are views corresponding to FIG. 6(a) and FIG. 6(b), respectively, when the shutter is released. O...Caddy 0...Caddy holder 0...CD playback mechanism, 0...Ejector, (-2...Lock lever 0... ... Nyasi.

Claims (1)

[Claims] 1. A disc playback mechanism section with a turntable and a pickup on the top surface, a chassis that supports the disc playback mechanism section with a vibration isolating member, a caddy insertion slot on the front side, and a caddy shutter opening on the bottom side. A box-shaped caddy holder, which has an opening corresponding to the caddy, accommodates a caddy that is manually inserted from the front to the rear, and has a plurality of guide pins standing outside on both sides. It is rotatably provided and rotates by the insertion force of the caddy, and after sliding the caddy's tip and opening the caddy's shutter, it locks in the caddy's tip recess and rotates in the opposite direction when the lock is released. a shutter lever biased by a spring so as to simultaneously close the shutter of the caddy and eject the caddy from the caddy holder; a spring biasing the top surface of the caddy holder vertically toward the chassis; The caddy holder is movably supported and installed on the chassis so that it can be slid horizontally and in the front-rear direction, and when sliding, the caddy holder is separated from the turntable by a predetermined distance, and when sliding, the caddy holder is lowered onto the disc player groove. an eject lever for placing the disc on the turntable through the opening, a pressing part that can come into contact with the tip of the caddy, and a locking part that locks the eject lever, and is rotatably supported by the chassis; When the insertion of the caddy into the caddy holder is completed, the pressing part is pressed against the caddy tip to unlock the eject lever, and when the eject lever slides, the eject lever is locked and at the same time the caddy tip inserted into the caddy holder A manual disc loading device comprising: a lock lever that releases the lock of the shutter lever by pressing the lock lever. 2. After the shutter lever locks into the recess at the tip of the caddy when the caddy is fully inserted into the caddy holder, if you manually press the caddy to move the caddy holder further backwards, the anti-vibration member will move horizontally. 2. The manual disc loading device according to claim 1, wherein the caddy is bent so that the leading end of the caddy presses the pressing portion to release the lock of the eject lever. 3. The manual disc loading device according to claim 1, wherein the spring has a pressing force set so as to bend the vibration isolating member by a predetermined distance in the vertical direction when the caddy holder is lowered onto the disc reproducing mechanism.