JP2518396B2 - Shutter mechanism of recording medium insertion part - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shutter mechanism for a recording medium insertion portion, and more particularly to a shutter mechanism for a recording medium insertion / ejection portion in a recording / reproducing apparatus such as an optical disc device.

Conventional Technology The conventional shutter mechanism has the following configuration. That is, a medium inlet / outlet for inserting / ejecting a recording medium is provided on a front panel constituting the apparatus, and a shutter for pivotally supporting the recording medium inlet / outlet in a vicinity of the medium inlet / outlet is pivotally supported with one end as a fulcrum. , A device for rotating the shutter about the fulcrum and pushing it up, and a device for interlocking with a retracting device for placing a recording medium and for retracting and ejecting the recording medium into and out of the apparatus, respectively. It has an arm having a fulcrum on the side.

First, the operation when the medium is inserted will be described. When a medium is inserted into the medium inlet / outlet provided on the front panel that constitutes the device, the shutter that seals the medium inlet / outlet is pressed by the medium and rotates around the fulcrum provided at the upper end of the shutter. Open.

One end of the lower part of the shutter is in contact with the upper surface of the inserted medium. The medium comes into contact with one end of the lower portion of the shutter and is drawn into the inside of the apparatus by the medium drawing table. When the medium passes, the shutter returns to rotate around a fulcrum at one end of the upper portion and seals the medium entrance and exit.

Next, the operation of ejecting the medium will be described. According to the medium ejection command, the medium retracting table on which the medium is mounted moves in the medium entrance / exit direction. At that time, in the arm having the fulcrum on the device side, the tip located near the shutter moves to the upper part with the device side as the fulcrum at the same time as the medium drawing table. The tip of the arm contacts the lower end face of the lever and pushes up the lever. The lever then contacts the central part of the shutter and pushes up the rotating shutter with one end of the upper part as a fulcrum.

The shutter opens the medium entrance and exit. The medium mounted on the medium pull-in table advances to the medium entrance / outlet and is discharged to the outside of the apparatus. The medium discharged halfway is manually pulled out to the front, but the shutter closes the medium inlet / outlet by this pulling operation.

In the shutter mechanism of the above-described conventional recording / reproducing apparatus, the medium surface and the lower portion of the shutter contact each other when the medium is inserted and when the medium is ejected. Sometimes, when the medium and the shutter are strongly pressed against each other, the shutter is damaged.

OBJECT OF THE INVENTION It is an object of the present invention to provide a shutter mechanism which eliminates the contact between the shutter and the recording medium and prevents the medium and the shutter from being damaged.

The shutter mechanism according to the present invention includes a shutter member pivotally supported about the upper end of the insertion portion for inserting the recording medium into the apparatus, and responds to the start of insertion or ejection of the recording medium. A shutter mechanism that opens the shutter member and closes the shutter member in response to the completion of insertion and ejection of the recording medium. The recording medium is inserted by including an arm member that pivots and has a groove portion, a lever member attached to the shutter member, and a pin member provided at the tip of the lever member and loosely inserted in the groove portion. In response to the start or discharge start, the solenoid is rotationally controlled by a predetermined angle to open the shutter member, and in response to completion of insertion or discharge of the recording medium, the solenoid The shutter member is closed by rotating the id back.

Example Next, an example of the present invention will be described with reference to the drawings. 1 and 2 are vertical cross-sectional views of an embodiment of the present invention. FIG. 1 shows a state in which a medium inlet / outlet is closed by a shutter, and FIG. 2 shows a state in which the medium inlet / outlet is opened by a shutter. Indicates.

Data is recorded on the medium 1 by the optical disk device, and the medium 1 is inserted and ejected. The front panel 2 forms a part of the device and shuts off the inside and outside of the device.

The medium inlet / outlet 3 is an opening for inserting and ejecting the medium 1 into / from the device provided on the front panel 2, and the shutter 4 is attached so as to seal the medium inlet / outlet 3 from the inside of the device. The fulcrum 5 is provided at the upper end of the shutter 4,
The shutter 4 is rotatably supported around the fulcrum 5.

The lever 6 is formed from a part of the shutter 4, and a pin 7 is provided at the tip of the lever 6.

The solenoid 8 is fixedly disposed on the apparatus side, an arm 9 is attached to the solenoid 8, and a groove 10 is provided in the arm 9.

The pin 7 attached to the tip of the lever 6 formed on the shutter 4 is a groove portion provided on the arm 9 of the solenoid 8.
The pin 7 is loosely inserted in the groove 10, so that the pin 7 can freely move in the groove 10 along the groove.

Next, the operation will be described. A current is applied to the solenoid 8 in response to a medium insertion command to the device. When the current is applied, the solenoid 8 moves around the main body of the solenoid 8 as the center point.
It rotates in the direction of arrow A as shown. By the rotation of the solenoid 8, the arm 9 provided in the solenoid 8 and the groove portion 10 provided in the arm 9 are also rotated.

Along with this, the shutter 4, the lever 6 forming a part of the shutter 4, and the pin 7 provided at the tip of the lever 6 are fulcrum 5 provided at one end of the upper portion of the shutter 4.
Around the center. Therefore, when the solenoid 8 rotates in the direction of arrow A shown in FIG. 1, the arm 9 and the groove portion 10 also rotate as described above.

The pin 7 loosely inserted in the groove 10 also moves at the same time.
However, due to the difference in the center of rotation between the pin 7 and the groove 10,
With the fulcrum 5 as the center of rotation, it moves in the groove 10 and the shutter 4 is pulled up as shown in FIG.

When the shutter 4 is pulled up, the medium entrance / exit 3 is opened and the medium 1 is inserted into the apparatus. When the medium 1 is inserted, the current application of the solenoid 8 is interrupted by the insertion completion command. The solenoid 8 enters the return operation, rotates in the direction opposite to the direction of the arrow A shown in FIG. 2, and pushes down the shutter 4. Therefore, the shutter 4 closes the medium entrance / exit 3.

The medium discharging operation from the inside of the apparatus is performed in the same manner as the medium inserting operation procedure.

By doing so, there is no contact between the recording medium and the shutter, and it is clear that there is no damage to both.

Further, since the groove portion 10 is provided in the arm portion 9 of the solenoid and the pin 7 at the tip of the shutter lever 9 is loosely inserted in the groove portion 10, the rotation center point 5 of the shutter 4 is
The center of rotation of the solenoid 8 can be eccentrically mounted. As a result, the mounting position of the solenoid 8 inside the device can be freely set, and the degree of freedom in design is increased.

As described above, according to the present invention, since the operation of opening and closing the shutter is controlled by the solenoid whose rotation is freely controllable, the damage caused by the contact between the recording medium and the shutter is eliminated, and Since the shutter is opened immediately before inserting and ejecting the recording medium, there is an effect that the shutter damage can be prevented.

[Brief description of drawings]

1 and 2 are longitudinal sectional views of an embodiment of the present invention,
FIG. 1 is a view showing a state where the shutter is closed, and FIG. 2 is a view showing a state where the shutter is open. Description of symbols of main parts 1 ... Recording medium 4 ... Shutter 5 ... Support point 6 ... Lever 7 ... Pin 8 ... Solenoid 9 ... Arm 10 ... Groove

Claims (1)

(57) [Claims] 1. An insertion portion for inserting a recording medium into an apparatus, including a shutter member pivotally supported about an upper end thereof as a fulcrum, and the shutter member is provided in response to start of insertion or ejection of the recording medium. A shutter mechanism, which is in an open state and closes a shutter member in response to completion of insertion and ejection of the recording medium, includes a solenoid whose rotation is controllable and a solenoid which is interlocked with the rotation of the solenoid. An arm member having a groove portion, a lever member attached to the shutter member, and a pin member provided at a tip end portion of the lever member and loosely inserted in the groove portion are used to start the insertion or ejection of the recording medium. In response, the solenoid is rotationally controlled by a predetermined angle to open the shutter member, and in response to completion of insertion or ejection of the recording medium, the solenoid is rotationally returned to the above state. Shutter mechanism, characterized in that the Yatta member closed.