JP2000030339A - Cartridge loading device - Google Patents

Abstract

(57) [Problem] To eject a cartridge from a holder, the pushing amount of the cartridge is not constant. SOLUTION: A cartridge is pressed by a bent portion 10b of a lever 10, and when the cartridge is pushed out, the cartridge is engaged with the bent portion 10a.
A larger pressing force is applied to the cartridge 1 than when the cartridge 1 is engaged with the bent portion 10b.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for loading a cartridge for an optical disk or the like, and more particularly to a device for controlling the amount of a cartridge to be pushed out when a cartridge is inserted or removed, particularly when a cartridge is ejected.

[0002]

2. Description of the Related Art In recent years, devices for recording and reproducing information on an optical disk housed in a cartridge have become popular due to their large capacity and interchangeability.

When ejecting the optical disk from the apparatus, a lever for regulating the amount of pushing of the cartridge is formed, and the cartridge is pressed by a spring.

An example of a conventional cartridge loading device will be described below with reference to FIG.

FIG. 8 is a schematic structural view of a conventional cartridge loading device. A cartridge 101 houses a recording disk 102 such as an optical disk. 103
Is a base, and 104 is a slide cam that operates in the X1 and X2 directions and is urged in the X2 direction by a spring (not shown). 1
A holder 05 holds the cartridge 101. 1
Reference numeral 06 denotes a shutter which is urged by a spring 107 in the S1 direction. Reference numeral 108 denotes a cartridge insertion / removal opening, and reference numeral 109 denotes a shaft which is attached to the holder 105. Reference numeral 110 denotes a lever which rotates around the shaft 109 and is urged in the R2 direction by a spring 111. Reference numeral 112 denotes a motor which rotates by engaging with the recording disk 102. A head 113 records and reproduces information on the recording disk 102.

[0006] The operation of the cartridge loading device configured as described above will be described below.

[0007] First, the cartridge 101 is
, The shutter 106 rotates in the S2 direction, the cartridge 101 is held by the holder 105,
Continue insertion in the X1 direction. The cartridge 101 is engaged with the bent portion 110c of the lever 110, and the lever 110
The cartridge 101 continues to be inserted in the X1 direction. When the rotation center of the recording disk 102 is substantially collinear with the rotation center of the motor 112, the cartridge 101 engages with a lock member (not shown) that locks the movement of the slide cam 104, and releases the lock. .
Thereafter, the slide cam 104 moves in the X2 direction.

Here, the cam groove 104 of the slide cam 104
a is engaged with the convex portion 105a of the holder 105, the holder 105 moves together with the cartridge 101 in the Y2 direction. Then, since the recording disk 102 also moves in the Y2 direction, the recording disk 102 is engaged with the disk drive motor. Next, when the recording disk 102 is rotated by rotating the disk drive motor, information can be recorded and reproduced on the recording disk 102 by the optical head.

When the cartridge 101 is ejected, the reverse operation is performed. The pushing of the cartridge 101 is performed by a pushing spring (not shown) in the X2 direction.
It functions as the first brake and regulates the pushing amount of the cartridge 101.

[0010]

When a cartridge is inserted into or removed from a holder through an insertion opening, particularly when the cartridge is ejected from the holder, a brake for restricting the amount of pushing of the cartridge in the conventional configuration is provided with a brake which engages with the lever. Since a constant force is always applied from the joint, the amount of pushing out of the cartridge is likely to change due to variations in the spring force of the cartridge pushing out.For example, if the pushing out amount is too large, the cartridge tends to fall out of the insertion / extraction opening and fall, There is a problem that it may be destroyed.

The present invention has been made in view of the above problems, and provides a cartridge pushing amount regulating mechanism for precisely braking a cartridge pushing amount.

[0012]

According to the present invention, there is provided a cartridge loading apparatus for inserting and removing a cartridge containing a recording disk, a shutter which can be opened and closed by being urged in a direction to close the insertion and removal opening, and a holder for holding the cartridge. A lever having an engaging portion that rotates about a rotation shaft provided in the holder and engages with the cartridge; and a spring that biases the engaging portion in a direction in which the engaging portion engages with the cartridge. The first part includes a first engagement part and a second engagement part arranged along the cartridge insertion / removal direction.
Does not engage with the cartridge at the same time, and the pressing force on the cartridge of the first engaging portion disposed on the insertion / extraction opening side is smaller than the force of the second engaging portion on the cartridge. It has a strong configuration.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS According to the present invention, a first engaging portion and a second engaging portion which are not engaged with a cartridge at the same time are provided along a cartridge inserting / removing direction, and a first engaging portion and a second engaging portion are arranged on an insertion / extraction opening side. The engagement portion is configured to be able to grip the cartridge with a greater force than the second engagement portion. In other words, since the distance from the rotation shaft, which is the fulcrum, is closer in the first engagement portion than in the second engagement portion, the acting force of the biasing spring is also smaller in the first engagement portion than in the second engagement portion. Since the first engaging portion is located closer to the cartridge insertion port than the second engaging portion, the second engaging portion acting on the cartridge upon ejection is stronger than the second engaging portion. Since the pressing force is weaker than the pressing force of the first engaging portion, it is possible to achieve a mechanism in which the first engaging portion can accurately brake the cartridge to a predetermined pushing amount when ejecting the cartridge.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A cartridge loading device according to one embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view of a cartridge loading device according to an embodiment of the present invention. 2, 3, 4,
FIG. 5, FIG. 6, and FIG. 7 are side views or top views for explaining the operation of the loading device of the embodiment.

Reference numeral 1 denotes a cartridge in which a recording disk 2 is stored. Reference numeral 3 denotes a base, and 4 denotes a slide cam which operates in the X1 and X2 directions and is urged in the X2 direction by a spring (not shown). A holder 5 holds the cartridge 1. Reference numeral 6 denotes a shutter which is urged by a spring 7 in the S1 direction. 8
Denotes a cartridge insertion / removal opening, and 9 denotes a shaft portion attached to the holder 5. Reference numeral 10 denotes a lever which rotates about the shaft 9 and is urged by a spring 11 in the R2 direction. 12
Is a motor for rotating the recording disk 2 by engaging it with a turntable of the motor. 13 is a head, a recording disk 2
This is for recording and reproducing information.

The cartridge loading device configured as described above will be described below with reference to FIGS. 1, 2, 3, 4, and 5.
The operation will be described with reference to FIGS.

First, as shown in FIG. 2, when the cartridge 1 is inserted into the insertion slot 8, the shutter 6 rotates in the S2 direction, and the cartridge 1 is held by the holder 5 and continues to be inserted in the X1 direction. As shown in FIG. 6, the cartridge 1 is engaged with the bent portion 10a of the lever 10, the lever 10 rotates in the R1 direction, and the cartridge 1 continues to be inserted in the X1 direction.

Next, as shown in FIG. 7, the cartridge 1 is engaged with the bent portion 10b of the lever 10, the lever 10 further rotates in the direction R1, and the cartridge 1 continues to be inserted in the direction X1. At this time, the cartridge 1 and the bent portion 1
The engagement with 0a has been released.

When the center of rotation of the recording disk 2 is substantially on the same line as the center of rotation of the motor 12, the cartridge 1 comes into contact with a lock member (not shown) that locks the movement of the slide cam 4 to release the lock. . Then slide cam 4
Moves in the X2 direction.

Since the cam groove 4a of the slide cam 4 is engaged with the projection 5a of the holder 5, the holder 5 moves in the Y2 direction together with the cartridge 1. Also, as shown in FIGS. 3 and 4, the cam portion 6a of the shutter 6 does not come into contact with the convex portion 4b of the slide cam.
Is rotated in the S1 direction along with the movement in the Y2 direction, and the insertion opening 8 is closed. At the same time, the recording disk 2 also moves in the Y2 direction,
The recording disk 2 engages with the motor 12. Next, motor 1
When the recording disk 2 is rotated by rotating the recording disk 2, the head 13 is rotated.
Thus, information can be recorded and reproduced on the recording disk.

When the cartridge 1 is ejected, the reverse operation is performed. That is, when the slide cam 4 moves in the X1 direction from the state shown in FIG. 4, the protrusion 4 b engages with the cam 6 a of the shutter 6. When the shutter 6 continues to move, the shutter 6 further rotates in the S2 direction to open the insertion / extraction opening. At the same time, since the cartridge 1 is moving in the Y1 direction, the engagement relationship between the cartridge 1 and the shutter 6 is as shown in FIG. 5, and a passage for inserting and removing the cartridge 1 is secured in the X2 direction. It is possible.

At this time, the pushing of the cartridge 1 is performed by a pushing spring (not shown) after the cartridge 1 moves in the Y2 direction. At first, as shown in FIG.
Although the cartridge is pressed by the bent portion 10b of the lever 10, as the push-out proceeds, as shown in FIG.
0a. According to the principle of leverage, bending part 1
When the cartridge 1 engages with the bent portion 10b, a larger pressing force is applied to the cartridge 1 than when the cartridge 1 is engaged with the bent portion 10b. The pushing amount of the cartridge 1 is accurately braked.

As described above, according to the present embodiment, the cartridge engaging portions which are not simultaneously engaged with the lever for controlling the amount of pushing of the cartridge at the time of ejecting are provided at the two positions of the first engaging portion and the second engaging portion. And the pressing force of the first engaging portion close to the insertion / extraction opening on the cartridge is stronger than that of the second engagement portion farther from the insertion / extraction opening, so that the braking force applied to the cartridge can be controlled in two stages. It is possible to add strength and weakness, and it is possible to precisely brake the amount of ejection of the cartridge when ejecting the cartridge, and to prevent the cartridge from jumping out of the insertion / ejection opening and falling. Further, the mechanism for improving the reliability can be realized without increasing the number of parts as compared with the conventional example.

In the above-described embodiment, a preferred example has been shown in which the shutter can be closed both when the cartridge is mounted on the holder and when the cartridge is not mounted on the holder. The shutter configuration is not limited to the configuration, for example, as shown in FIGS.
Of course, the present invention can be applied to a configuration in which the shutter 206 is not closed while the camera is mounted on the shutter 5.

That is, the correspondence between FIGS. 9 and 10 and FIGS. 2 to 7 is as follows: 204 is a slide cam 4, 205 is a holder 5, 206 is a shutter 6, 204a is a cam groove 4a, and 205a is a convex. This corresponds to the part 5a. Although these operations and engagement relations differ depending on whether or not the shutter is closed when the cartridge is inserted, since the operations of these parts are the same as those in the above-described embodiment, detailed description will be omitted. Further, according to the cartridge loading device of the present invention, the ejecting amount of the cartridge can be regulated when the cartridge is ejected, so that, for example, when it is not necessary to consider the entry of dust or the like from the insertion opening, the shutter is not provided. There is no problem.

[0026]

As described above, the cartridge loading device according to the present invention comprises an insertion / extraction opening for inserting and removing a cartridge containing a recording disk, a shutter which can be opened and closed by being urged in a direction to close the insertion / extraction opening, and a holder for holding the cartridge. A lever having an engagement portion that rotates about a rotation shaft provided on the holder and engages with the cartridge, and a spring that biases the engagement portion in a direction in which the cartridge engages with the cartridge,
The engaging portion includes a first engaging portion and a second engaging portion arranged along the cartridge insertion / removal direction, and the first engaging portion and the second engaging portion are simultaneously engaged with the cartridge. Without engaging, the force of engaging the cartridge of the first engaging portion arranged on the insertion / extraction opening side is stronger than the force of engaging the cartridge of the second engaging portion. Since the braking force applied to the cartridge can be adjusted in two levels, the pushing amount of the cartridge can be braked with high precision, and it is extremely effective in preventing the recording disk and the cartridge from being destroyed due to dropping when the cartridge is removed. It is valid.

[Brief description of the drawings]

FIG. 1 is a perspective view of a cartridge loading device according to an embodiment of the present invention.

FIG. 2 is a side view for explaining the operation in the embodiment.

FIG. 3 is a side view for explaining the operation in the embodiment.

FIG. 4 is a side view for explaining the operation in the embodiment.

FIG. 5 is a side view for explaining the operation in the embodiment.

FIG. 6 is a top view for explaining the operation in the embodiment.

FIG. 7 is a top view for explaining the operation in the embodiment.

FIG. 8 is a perspective view of a conventional cartridge loading device.

FIG. 9 is a side view for explaining an operation in another embodiment of the present invention.

FIG. 10 is a side view for explaining the operation in the embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Cartridge 2 Recording disk 3 Base 4 Slide cam 5 Holder 6 Shutter 7 Spring 8 Insertion / extraction port 9 Shaft 10 Lever 11 Spring 12 Motor 13 Head

Claims (1)

[Claims] 1. A slot for inserting and removing a cartridge containing a recording disk, a shutter which can be opened and closed by being urged in a direction to close the slot, a holder for holding the cartridge, and a rotating shaft provided on the holder. A lever having an engaging portion that rotates about the lever and engages with the cartridge, and a spring that urges the engaging portion in a direction in which the engaging portion engages with the cartridge. A first engaging portion and a second engaging portion arranged along the insertion / removal direction, wherein the first engaging portion and the second engaging portion are simultaneously engaged with the cartridge; The pressing force of the first engagement portion disposed on the insertion / extraction opening side with respect to the cartridge is:
A cartridge loading device, wherein a force of the second engagement portion engaging the cartridge is stronger.