JP3593296B2 - Door structure of recording medium insertion slot - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a recording medium recording / reproducing apparatus, and more particularly, to a recording medium insertion door suitable for a mini disk recording / reproducing apparatus.
[0002]
[Prior art]
FIGS. 4 and 5 show an example of a door structure of an MD insertion slot of a mini disc (hereinafter, referred to as MD) recording / reproducing apparatus which is a recording medium housed in a conventional cartridge. The door 5 of the MD insertion slot shown in the figure is rotatably supported at the foremost end of the MD path of the MD recording / reproducing apparatus main body 3 via a shaft 5a provided integrally.
[0003]
As shown in FIG. 4A, the door 5 is normally in a hanging state due to gravity or elasticity of a spring, and blocks the MD passage. When the MD 4 is pushed toward the door 5 in the direction of arrow A shown in FIG. 4A, the door 5 is pushed by the MD 4 and pivots counterclockwise as shown in FIG. Let it pass.
[0004]
FIG. 5 shows a state where MD4 is discharged. As shown in FIG. 5A, when the MD 4 is separated from the door 5, the door 5 blocks the passage of the MD, but when the MD 4 is sent to a loading mechanism (not shown) and approaches the door 5, the door 5 is closed. 5 is driven by a drive mechanism (not shown) and rotates counterclockwise to open the MD passage as shown in FIG. 5B. The door structure of the MD insertion port shown in FIGS. 4 and 5 requires a mechanism with a drive source for driving the door, and has a disadvantage that the manufacturing cost is increased.
[0005]
FIG. 6 shows another example of the door structure of the MD insertion slot of the conventional MD recording / reproducing apparatus. The door 5 of the MD insertion slot shown in the figure is rotatably supported at a position deep in the MD passage of the MD recording / reproducing apparatus main body 3 via a shaft 5a provided integrally.
[0006]
As shown in FIG. 6A, the door 5 is normally suspended by gravity or elasticity of a spring, and blocks the MD passage. When the MD 4 is pushed toward the door 5 in the direction of arrow A (the insertion direction) shown in FIG. 5A, the door 5 is pushed by the MD 4 and rotates counterclockwise to pass the MD 4.
[0007]
As shown in FIG. 6 (b), when the MD4 is sent to the loading mechanism (not shown) in the direction of arrow B and discharged, the door 5 is pushed by the MD4 and rotates clockwise to pass the MD4. .
[0008]
In this example, a mechanism for driving the door 5 is unnecessary, but there is a problem that the appearance is poor because the door 5 is located at the back.
[0009]
As shown in FIG. 7, when the door 5 is rotatably supported by the shaft 5a at the foremost end of the MD passage and driven by the MD4 for both insertion and ejection, the front end of the MD passage is normally closed by the door, so that it looks good. Although no drive mechanism is required, the door 5 protrudes in a state where the MD4 is discharged, and the door 5 may be pulled and damaged together with the MD4.
[0010]
[Problems to be solved by the invention]
SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and has as its object to eliminate the need for a drive mechanism with a power source for a door, and to provide a good-looking recording medium insertion opening which is not likely to be damaged. Door structure.
[0011]
[Means for Solving the Problems]
In the door structure of the recording medium insertion opening of the present invention, doors for opening and closing the recording medium passage near the recording medium insertion opening are rotatably provided in two stages, and the gears provided on each of the doors mesh with each other. The other door is rotated in the opposite direction by the rotation of the door.
[0012]
Further, in the door structure of the recording medium insertion opening, the recording medium is a mini disk.
[0013]
BEST MODE FOR CARRYING OUT THE INVENTION
A door structure of an MD insertion slot according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view showing a door of an MD insertion slot according to an embodiment of the present invention. As shown in the drawing, shafts 1a, 1a and gears 1b, 1b are formed integrally with the door 1. The door 2 is integrally formed with shafts 2a, 2a and gears 2b, 2b.
[0014]
The door 1, the shafts 1a, 1a and the gears 1b, 1b and the door 2, the shafts 2a, 2a and the gears 2b, 2b are symmetrical, and these doors are, as shown in FIGS. Are rotatably supported by the MD recording / reproducing apparatus main body 3 so as to open and close the passage of the MD 4 in a state where the two are engaged.
[0015]
FIG. 2 shows a state when the MD4 is inserted. As shown in FIG. 2A, the doors 1 and 2 are normally in a hanging state due to gravity or elasticity of a spring, and block the passage of the MD5. When the MD 4 is pushed toward the door 1 in the direction of arrow A shown in FIG. 2A, the door 1 is pushed by the MD 4 and pivots counterclockwise as shown in FIG. The door 2 is rotated clockwise by the engagement of the gears 1b and 2b to open the MD4 passage.
[0016]
FIG. 3 shows a state when the MD4 is discharged. As shown in FIG. 3A, when MD4 is sent out in the direction of arrow A by a loading mechanism (not shown), as shown in FIG. 3B, the door 2 is pushed by MD4 and rotates clockwise. The door 1 is rotated counterclockwise by the engagement of the gears 1b and 2b to open the MD4 passage.
[0017]
As described above, a driving mechanism such as a motor for the doors 1 and 2 is not required, and the front end of the insertion port is normally closed by the door, so that the appearance is good. Moreover, since the door does not protrude to the outside, there is no risk of damage.
[0018]
【The invention's effect】
ADVANTAGE OF THE INVENTION According to the door structure of the recording medium insertion opening of this invention, since the drive mechanism by the motor etc. with respect to a door is not needed, since the front-end | tip part of an insertion opening is normally closed by the door, the appearance is good. Moreover, since the door does not protrude to the outside, there is no risk of damage.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a door of an MD insertion slot according to an embodiment of the present invention.
FIG. 2 is a cross-sectional view partially showing a structure of a door of the MD insertion slot.
FIG. 3 is a cross-sectional view partially showing a structure of a door of the MD insertion slot.
FIG. 4 is a cross-sectional view showing a part of a conventional MD insertion door in a see-through manner.
FIG. 5 is a cross-sectional view showing a part of a door structure of the MD insertion port in a see-through manner.
FIG. 6 is a cross-sectional view partially showing another example of a conventional MD insertion door structure.
FIG. 7 is a cross-sectional view partially showing another example of a conventional door structure of an MD insertion slot.
[Explanation of symbols]
1 MD insertion door, 1a axis, 1b gear 2 MD insertion door, 2a axis, 2b gear 3 MD recording / reproducing apparatus main body 4 MD
5 MD insertion door, 5a axis

Claims (2)

Doors for opening and closing the recording medium passage near the recording medium insertion opening are rotatably provided in two stages, the gears provided on each of the doors mesh with each other, and the rotation of one door causes the other door to move in the opposite direction. A door structure of a recording medium insertion opening configured to rotate. 2. The door structure of a recording medium insertion slot according to claim 1, wherein said recording medium is a mini disk.

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