JPH09282762A - Disk loading device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a disk tray from bounding (rebound) at the time of stop of the disk tray by suppressing the impact sound at the time when the disk tray of a player, etc., for transporting the disk inside the player comes to a standstill from the sliding state. SOLUTION: A brake member 4 such as a leaf spring, etc., is arranged oppositely to face against the disk tray 1 at the time when the disk tray 1 is inserted or ejected against a chassis while being slid by the engagement of a pinion 3 pivotally fixed to a rotary shaft of a motor 2 with a rack 1a arranged on the disk tray 1. Then, the bounding of the disk tray 1 is eliminated in such a manner that the disk tray 1 is slowly stopped by gradually being braked from the time right before the tray is stopped.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention mounts a disc such as a CD (compact disc) or MD (mini disc) on a disc tray and loads the disc into an equipment casing.
The present invention relates to a disc loading device for disc recording / reproducing means adapted to reproduce and record.

[0002]

2. Description of the Related Art Conventionally, a disc loading device such as a disc player for mounting a disc on a disc tray for recording and reproducing is well known as shown in FIG.

FIG. 4 is a disc player showing an embodiment of a conventional disc loading device. The panel 22 of the player 21 is provided with an opening 24 into which the disc tray 1 can be inserted and ejected, and the disc tray 1 is slidably taken in and out of the opening 24. A disc mounting portion 2 for mounting a disc 25 on the disc tray 1
6, the disc 25 is placed on the disc mounting portion 26, and the disc tray 1 is lightly pressed into the player 21 or the loading button is operated.
1, the disc tray 1 and the disc 25 are accommodated in the player 21, and the disc tray 1 is lowered together with the disc 25 toward the disc rotation driving device side to put the disc 25 into a recording or reproducing state. ing.

FIG. 5 is a perspective view showing an embodiment of a loading mechanism in the loading device of the conventional player 21 as described above. In FIG. 5, the disc tray 1 is slidable along the longitudinal direction (depth direction) of the chassis 6 fixed in the housing of the player 21.

That is, the chassis 6 is formed by bending the front and rear of the chassis 6 upward to form bent pieces 6a and 6b,
A shaft 10 forming a guide member is bridged between the bent pieces 6a and 6b. Further, the left side surface of the chassis 6 and the right side surface (not shown) are bent upward to bend the bent pieces 6c 'and 6c.
And the cut groove 6d is formed on the bottom surface of the chassis 6.

Left and right bent pieces 6c 'and 6c of the chassis 6
Pins are erected inwardly of the chassis 6 and guide rollers 7 ', 8'and 7, 8 are rotatably pivotally mounted. The guide rollers 7 ', 8'and 7, 8 are guided along left and right concave groove portions 1b' and 1b formed on the left and right side surfaces of the disc tray 1 along the sliding direction DD '. Is made in.

A rack 1a is formed on, for example, the right side surface (or the left side surface) of the disc tray 1 and meshes with a pinion (gear) 3 fixed to the tip of the rotation shaft of the motor 2. The motor 2 is driven by pressing a loading button arranged on the panel 22, and slides the disc tray 1 in the direction of arrow D-D '.

At the lower end of the disc tray 1 is guided by a shaft 10 bridged between the bent pieces 6a and 6b of the chassis 6
A guide member 1c that is guided in the -D 'direction is formed.

The above-mentioned configuration is for loading with a motor, but for manual loading, the chassis 6 is used.
An L-shaped bent piece 1d is formed so as to protrude downward through a cut groove 6d formed on the bottom surface of the.

One end of a coil spring 11 is locked to one end of a bent portion 6e bent downward from the bottom surface of the chassis 6. Further, a pin 12 is erected downward from the bottom plate of the chassis 6, a pulley 13 is rotatably pivotally attached to the pin 12, the coil spring 11 is surrounded along the circumference of the pulley 13, and the other end is It is configured so as to be locked to an L-shaped bent piece 1d that hangs from the bottom surface of the disc tray 1.

Therefore, since the disc tray 1 is always biased in the storing (or ejecting) direction by the above-mentioned coil spring 11, the front face portion of the disc tray 1 is pressed against the biasing force of the coil spring 11. Then, the locked state between the disc tray 1 and the chassis 6 is released, and the biasing force of the coil spring 11 allows the disc tray 1 to be ejected (stored).

Further, the disc tray 1 is slid in the D'direction, and the disc tray 1 is ejected from the bent piece 6b at the storage end position or the panel 22 as shown in FIG. 4 and slid in the D direction. In order to prevent the generation of impact noise when the guide member 1c comes into contact with the bent piece 6a at the start position, the bent piece 6a or 6
Brake members 14 and 15 such as dampers are attached to b.

Various types of braking members 14 and 15 have been proposed, but as shown in the enlarged perspective view of the portion A of FIG. 5, a gripping portion 14b is provided in a rectangular parallelepiped casing 14a formed of plastic or the like. A locking piece 14d that is slidable along the groove 14c and is set up at the rear end of the disc tray 1.
Is clamped by the C-shaped gripping pieces on both ends of the gripping portion 14b. In the braking member 14, the grip portion 14b is held in the casing 14a while the rear end of the disc tray 1 is in contact with the bent piece 6b.
It has a structure in which the tongue portion of the locking piece 14d is partially inserted into the inside and is locked by click motion, and when the disc tray 1 moves in the D direction (discharging), the gripping portion 14b moves from the casing 14a to the groove 14c. Along the direction of arrow E to release the tongue piece of the locking piece 14d from the clamped state.

[0014]

As described above, according to the disk loading device having the conventional structure, the gripping portion 1 is provided in the casing 14a as the braking member 14 or 15 as described above.
4b is inserted and ejected, the sound generated when the end of the disc tray 1 hits the bent piece 6b or the guide member 1c hits the bent pieces 6a and 6b, but is used for ejecting and inserting the disk tray 1. The coil spring 11 and the control members 14 and 15 cause a bounce (rebound) in the sliding direction (D or D'direction) of the disc tray 1,
There was a problem that the quality of the disc loading device was impaired.

The present invention is intended to provide a disk loading device that solves the above problems, and its object is to prevent impact noise at the time of disk ejection and mounting, and to cause the disk tray to rebound. It is designed to obtain a disc loading device capable of high-quality operation.

[0016]

DISCLOSURE OF THE INVENTION The disk loading device of the present invention is constructed such that an example thereof is slidably inserted and ejected along a chassis 6 in a housing as shown in FIGS. In a disc loading device having the disc tray 1 mounted,
Further, the leaf spring 4 of the braking member arranged on the chassis 6 near the end of the discharge is pressed against the disc tray 1 immediately before the end of the operation of the disc tray to apply the braking force.

According to the disc loading apparatus of the present invention, the leaf spring 4 of the braking member and the bottom portion or side portion of the disc tray 1 are brought into pressure contact with each other immediately before the disc tray 1 comes to rest so that the brake can be gradually applied by friction. Therefore, it is possible to obtain a disc tray that does not bounce.

[0018]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of a disk loading device in which the loading of the present invention is performed by a motor will be described in detail below with reference to FIGS. FIG. 1 is a plan view of a disk loading device of the present invention, and FIGS. 2 and 3 are side views (I) and (II) for explaining the operation of the disk loading device of the present invention during mounting and ejection. In the present invention, the parts corresponding to those of the disk loading device described in the conventional configuration are designated by the same reference numerals, and the duplicate description will be omitted. The disc loading device of this example differs from that of FIG. 5 in the disc tray 1.
A rack 1a is formed on the inner surface on the left side, and a pinion 3 driven by a motor 2 that meshes with the rack 1a is also arranged on the left side surface except for the braking member 14.

1 to 3 show only the essential parts of the constituent elements of this embodiment. That is, as shown in the plan view of FIG. 1, a rack 1a is formed on the inner surface at the lower end of the left side surface of the disc tray 1, the motor 2 is fixed to the upper end of the chassis 6, and the motor 2 is mounted between the disc tray 1 and the chassis 6. Arrange. Motor 2
The pinion 3 is fixedly attached to the shaft of the disc, and the disc tray 1 is slid in the directions of arrows D '(see FIGS. 1 and 2) and D (see FIG. 3) by driving the motor 2 by engaging with the rack 1a. Installed in the housing or discharged from the housing.

Grooves 1b 'and 1b, which are recesses in the sliding direction, are formed on the left and right side surfaces of the disc tray 1, as shown in FIG.
Although not shown in the figure, guide rollers 7 ', 8'and 7,8 pivotally mounted on bent pieces 6c' and 6c (see FIG. 5) bent to the left and right of the chassis 6 have groove portions 1b. ′
And 1b, while sliding in the DD 'direction.

On the bottom surface of the disc tray 1, as shown in FIGS. 2 and 3, a groove portion 1 recessed from the outside to the inside of the bottom surface.
6 is formed. The groove 16 is also cut out on the right side surface, but it may be provided only on the bottom surface or only on the side surface. The groove portion 16 extends in the sliding direction as shown by the arrow DD '. The start end of the groove 16 is a start end inclined portion 17a that is gradually inclined from the outside of the bottom surface of the disc tray 1 toward the inside, and the end portion is an end that is gradually inclined from the inside of the bottom surface of the disc tray 1 toward the outside. Slope 1
7b is formed. The inclination angle of this inclined portion can be made relatively gentle so that braking, which will be described later, is gradually applied.

Further, a cut and raised portion 6f is formed on the bottom plate of the chassis 6. When the disc tray 1 is ejected from the panel 22 of the player 21, the cut-and-raised portion 6f is located at a position beyond the end position of the groove portion 16 of the disc tray 1. That is, it is in the vicinity indicated by the symbol B in FIG.

On the cut-and-raised portion 6f, a leaf spring is bent upward as the braking member 4 and is formed in a convex shape, and is screwed onto the upper surface of the cut-and-raised piece 6f with a screw 5.

The operation of this example with the above configuration will be described. First, with the biasing force of the coil spring 11 or the driving force of the motor, the disc tray 1 is projected from the front side of the panel 22 of the player 21 as shown in FIG. When the front surface of the tray 1 is pressed in the D'direction against the biasing force of the coil spring 11 or a loading button (not shown) provided on the panel 22 is pressed, the motor 2 is rotated and the disc tray 1
The rotation of the pinion 3 meshing with the rack 1a of
The disc tray 1 moves in the direction of arrow D'in FIG. At this time, the disc tray 1 is manually or automatically loaded in the depth direction of the player 21 while being guided by the guide rollers 7 ', 8'and 7, 8 and the shaft 10 with respect to the chassis 6.

At this time, the braking member screwed on the cut-and-raised portion 6f of the chassis 6, that is, the convex portion of the leaf spring 4 is located in the vicinity of the rear inclined portion 17b of the groove 16 on the bottom surface of the disc tray 1 and at the position B. However, when the disc tray 1 slides in the direction of the arrow D ', the curved top of the convex portion of the leaf spring 4 gradually abuts the groove 16 which is a recess while abutting the rear inclined portion 17b of the groove 16. As it becomes like this, the frictional force is gradually released,
In the groove portion 16, the top of the leaf spring 4 is in a free state where it does not contact the bottom surface of the groove portion 16 of the disc tray 1, and the sliding speed is increased even with the same torque of the motor 2.

Further, when the disc tray 1 is slid in the D'direction, the top of the leaf spring 4 has a front inclined portion 17 of the groove portion 16.
The disc tray 1 is gradually brought into contact with a, and the braking force is gradually applied to the disc tray 1. When the top of the leaf spring 4 has passed over the front slanted portion 17a to reach the position indicated by the symbol A on the bottom of the disc tray 1, the disc tray 1 is completely mounted in the housing of the player 21. When the top of the leaf spring 4 is in strong contact with the A position and the B position described above, the leaf spring 4 is in strong contact, so braking is applied with a strong frictional force. In this example, since the braking force is gradually applied by the inclined portions 17a and 17b, an impact noise is not generated and the rebound of the disc tray 1 can be prevented, so that a disc loading device with a high-class movement is provided. Can be done.

In the above description of the operation, the disc tray 1
Although the operation when the disk tray 1 is mounted has been described, when the disk tray 1 is ejected in the direction indicated by the arrow D from the mounted state as shown in FIG. It becomes free at the groove portion 16 of the recess passing through the portion 17a, and the braking force is gradually applied at the rear inclined portion 17b,
It is obvious that the largest braking force is applied at the position and the vehicle is stopped.

Although a leaf spring is used as the braking member in the above-mentioned configuration, the tip of the plate-shaped member may be a shoe-like structure to which felt, rubber, etc. are attached. It may be formed so as to be attached to the cut and raised portion 6f.

Further, although the groove portion 16 is provided on the bottom surface of the disc tray 1, the groove portion 16 is provided on the left or right side surface, and the leaf spring 4 as a braking member is brought into contact with the lateral side of the left and right side surfaces to gradually brake. You can also hang it. Further, the braking member 14 described in the conventional example and the braking member 4 of this example may be used together. Further, it is possible to increase the frictional force by roughening the bottom surfaces A and B of the disc tray 1 which are in contact with the leaf spring 4 of the braking member.

[0030]

According to the disk loading apparatus of the present invention, the impact noise generated at the stop position when the disk tray is ejected or mounted is suppressed, and the braking is gradually applied before the disk tray is stopped. There is no bounce and you can get a luxurious movement.

[Brief description of drawings]

FIG. 1 is a plan view showing an embodiment of a disc loading device of the present invention.

FIG. 2 is a side view for explaining a mounting operation of the disc loading device of the present invention.

FIG. 3 is a side view for explaining the ejecting operation of the disc loading device of the present invention.

FIG. 4 is a perspective view of a conventional disc loading device.

FIG. 5 is a perspective view showing a loading mechanism of a conventional disc loading device.

[Explanation of symbols]

 1 disc tray 1a rack 2 motor 3 pinion 4 leaf spring (braking member) 7, 7 ', 8, 8'guide roller 14 braking member

Claims (3)

[Claims] 1. A disc loading device having a disc tray configured to be slidably inserted and ejected along a chassis in a housing, wherein the chassis near the end of insertion or ejection of the disc tray. The disc loading device, wherein the arranged braking member presses the disc tray to apply a braking force immediately before the end of the operation of the disc tray. 2. The disc tray has a concave groove portion provided on a bottom surface and / or a side surface in a sliding direction, and inclined portions provided at both ends of the groove portion in a sliding direction, and the braking member has the groove portion. 3. A braking force is applied to both ends of the disk tray by contacting the bottom surface and / or the side surface of the disk tray, and a non-contact state is provided at a position facing the concave groove portion.
The disc loading device as described in the above. 3. The method according to claim 1, wherein the braking member is a leaf spring fixed to the chassis.
The disc loading device as described in the above.