JPH0515192U - Door structure for medium insertion port - Google Patents

Abstract

(57) [Summary] [Purpose] Prevents dust from entering by blocking the medium insertion port except when the medium is inserted or removed. This is realized with a simple structure. [Structure] The first door 11 and the second door 15 are provided in the medium insertion port 2.
And. The first door 11 has an opening 1 through which the medium 4 can pass.
Have 1a. The second door 15 is attached to the inner surface of the first door 11 so as to close the opening 11a. A torsion spring 13 that biases the first door 11 inward and a torsion spring 16 that biases the second door 15 outward are provided. When inserting the medium, medium 4
Is inserted into the apparatus by passing through the opening 11a of the first door 11 and tilting the second door 15 inward. At the time of ejecting the medium, the medium 4 hits the second door 15, and the second door 15 and the first door 1
1 and 1 are tilted outward and discharged. The first door 11 is closed by the reaction force of the torsion spring 13 except when the medium is inserted or removed,
The door 15 is closed by the reaction force of the torsion spring 16.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 This invention relates to a door provided at an insertion port of a medium in an electronic device such as a CD-ROM device or a magneto-optical recording / reproducing device which reproduces or records information on / from a medium such as an optical disc or a magneto-optical disc. Regarding the structure.

[0002]

[Prior Art]

 A conventional example of the door of the medium insertion port is shown in FIGS. 7, 8 and 9. In each drawing, reference numeral 1 is a front panel of the main body of the device such as a CD-ROM device, reference numeral 2 is a medium insertion opening formed in the front panel 1, reference numeral 3 is a mechanical chassis of the main body of the apparatus, and reference numeral 4 is, for example, an optical disk cartridge. It is a medium such as a converted optical disk cartridge. The door 5 shown in FIG. 7 has a structure in which it simply pivots inward and falls down, and when the medium 4 is inserted as shown in the figure, the door 5 is always kept in contact with the medium 4 and kept open. .. If the structure is such that the door is completely closed after the medium is inserted, a separate mechanism for opening the door when ejecting the medium is required. Therefore, the door 5 does not become an obstacle when ejecting the medium.

The conventional example shown in FIG. 8 is composed of two doors, a first door 6 and a second door 7. The first door 6 is a medium 4 when the medium 4 is inserted in the same manner as described above. However, after the medium is inserted, the second door 7 is automatically lifted from below in conjunction with the medium inserting / removing mechanism (not shown) to close the medium insertion port 2. is there.

The conventional example shown in FIG. 9 has a structure in which the door 8 is opened to the outside. When the medium is inserted, the user puts his / her finger on the protrusion 8a at the upper edge to open the door 8 to the outside. When ejecting the medium, the door 8 is pushed by the medium 4 and opens outward.

[0006]

[Problems to be solved by the device]

 In the structure shown in FIG. 7, since the door 5 is always open when the medium is inserted, dust may enter the inside of the device through the opening, which may cause the device to malfunction. Further, in the structure shown in FIG. 8, the second door 7 needs to be linked with the movement of the medium inserting / removing mechanism inside the apparatus, which makes the structure remarkably complicated. Further, in the structure shown in FIG. 9, the door 8 must be opened by hand when the medium is inserted, which complicates the operation by the user.

The present invention has been made in order to solve the above-mentioned conventional drawbacks. The medium insertion port is closed except when the medium is inserted and removed to prevent dust from entering, and the structure is simple and the medium is inserted and removed. It is an object of the present invention to provide a door structure for a medium insertion port that does not require manual operation at times.

[0007]

[Means for Solving the Problems]

 The door structure according to claim 1 for solving the above-mentioned problems is a door structure of a medium insertion port in an electronic device for reproducing or recording / reproducing information to / from a medium, which has an opening through which the medium can pass and rotates outward. A first door that is attached to the medium insertion port as much as possible, a spring member that biases the first door inward, and an inner surface of the first door that closes the opening. It is characterized in that it is provided with a second door rotatably attached to the inside and a spring member for urging the second door in the outward direction.

According to a second aspect of the present invention, there is provided a door structure, which is capable of rotating the inside and the outside of the medium insertion opening, and a spring member which elastically returns to a neutral position when the door rotates to one side. It is characterized by having.

[0009]

[Action]

 In the door structure of claim 1, when the medium is inserted, when the medium is pushed inward from the opening of the first door, the second door is tilted inward to enter the inside of the apparatus. When the medium is mounted at a predetermined position inside the device, the second door separates from the medium and is rotated outward by the reaction force of the spring member to close the opening of the first door. This prevents dust from entering. At the time of ejecting the medium, the medium is pushed out by the medium inserting / removing mechanism inside the device. At that time, the medium hits the second door and pushes it outward, and the second door and the first door are integrated. The media is ejected to the outside. After the medium is discharged, the spring member integrally rotates the first door and the second door inward to close the medium insertion port. Thereby, the medium insertion port can be closed except when the medium is inserted or removed.

In the door structure according to the second aspect, the door is tilted inward when the medium is inserted, and is tilted outward when the medium is ejected to allow insertion and ejection of the medium. After the medium is inserted and ejected, the door returns to the neutral position by the reaction force of the spring member and closes the medium insertion port. Therefore, the medium insertion port is closed except when the medium is inserted.

[0011]

【Example】

 An embodiment of the invention of claim 1 is shown in FIGS. In these drawings, reference numeral 1 is a front panel of a device body such as a CD-ROM device, reference numeral 2 is a medium insertion opening formed in the front panel 1, reference numeral 3 is a mechanical chassis of the device body, and reference numeral 4 is an optical disk cartridge or the like. It is a medium. The door structure 10 that closes the medium insertion port 2 has an opening 11a through which the medium 4 can pass, and pivots outward (to the left in FIG. 1) via a shaft 12 at the lower edge of the medium insertion port 2. A first door 11 which is mounted so that it can be attached, and a torsion spring 13 which is attached to the shaft 12 and biases the first door 11 inward as shown in an enlarged scale in FIG. A second door 15 is rotatably attached to the inner surface of the first door 11 via a shaft 14 so as to close the opening 11a, and is attached to the shaft 14 portion. And a torsion spring 16 for urging the second door 15 outward. The upper edge of the first door 11 abuts the step 1a at the upper edge of the medium insertion opening 2 of the front panel 1 to close the medium insertion opening 2.

In the above door structure, when the medium 4 is inserted into the apparatus, as shown in FIG. 3, when the medium 4 is pushed inward from the opening 11 a of the first door 11 as shown by the arrow, Tilt the door 15 inward to enter the inside of the device. When the medium 4 is mounted at a predetermined position on the mechanical chassis 3 inside the apparatus, the second door 15 separates from the medium 15 and is rotated outwardly about the shaft 14 by the reaction force of the torsion spring 16, As described above, the opening 11a of the first door 11 is closed.

When ejecting the medium 4 from the state shown in FIG. 1, the medium 4 is pushed out by an unillustrated medium inserting / removing mechanism inside the apparatus, and at this time, the medium 4 hits against the second door 15. This is pushed outward, and as shown in FIG. 4, the second door 15 and the first door 11 fall together outward, and the medium 4 is discharged to the outside as shown by the arrow. After the medium is ejected, the torsion spring 13 pushes the first door 11 and rotates it inward integrally with the second door 15 to close the medium insertion port 2 (that is, the first door 11 and the second door 11). 15 is the state shown in FIG. 1). As a result, the medium insertion port 2 can be closed except when the medium is inserted / removed, and dust is prevented from entering.

FIG. 5 shows another embodiment of the second door 15. The second door 15 ′ of this embodiment has a thick portion 15 ′ a which fits into the opening 11 a of the first door 11. As a result, the first door 11 and the second door 15 'appear to be substantially flat when viewed from the outside, so that the appearance is improved.

Next, an embodiment of the door structure according to claim 2 is shown in FIG. In this door structure 20, one door 21 is attached to the lower edge of the medium insertion port 2 via a shaft 22 so as to be rotatable inward and outward, and the door 21 is turned inside or outside. The structure is provided with, for example, two torsion springs 23 and 24 that elastically return it to a neutral position (vertical position shown in FIG. 6) when moved. Further, in order to close the gap between the door 21 and the upper edge of the medium insertion opening 2, a sealing member 25 that does not prevent the opening and closing movement of the door 21 is attached to the upper edge of the medium insertion opening 2. As the sealing member 25, an elastic member such as rubber or sponge may be used, and the shape may be, for example, the illustrated shape or a brush shape.

In the door structure 20 described above, the door 21 tilts inward (right side in FIG. 6) when the medium is inserted, and tilts outward (left side in FIG. 6) when the medium is ejected to allow the insertion and ejection of the medium. To do. After the medium is inserted and ejected, the door 21 returns to the neutral position by the reaction force of the torsion spring 23 or 24, and closes the medium insertion port 2.

The present invention is not limited to a disk-shaped medium such as an optical disk or a magneto-optical disk, but may be a magnetic tape cassette, for example.

[0018]

[Effect of the device]

 According to the door structure of claim 1, when the medium is inserted, the second door is tilted inward so that the medium can be inserted, and when the medium is ejected, the second door and the first door are tilted outward together. Since the medium can be discharged, the medium insertion port can be closed except when the medium is inserted and removed, and dust can be prevented from entering.

Since the door is opened and closed only by being pushed by the medium, there is no need to manually operate the medium when inserting the medium, and in comparison with the mechanism that directly interlocks with the movement of the medium inserting / removing mechanism, The structure is extremely simple.

According to the second aspect, similarly to the above, the medium insertion port can be closed except when the medium is inserted, and no manual operation is required. And since only one door is required, the structure is extremely simple.

[Brief description of drawings]

FIG. 1 is a sectional view showing an embodiment of a door structure according to claim 1.

FIG. 2 is an enlarged view of the vicinity of a torsion spring portion in FIG.

FIG. 3 is an explanatory diagram of an operation of the door structure of FIG. 1 when a medium is inserted.

FIG. 4 is an explanatory diagram of an operation of the door structure of FIG. 1 when ejecting a medium.

FIG. 5 is a cross-sectional view of a main part showing another embodiment of the door structure according to claim 1.

FIG. 6 is a sectional view showing an embodiment of the door structure according to claim 2;

FIG. 7 is a sectional view of a conventional door structure.

FIG. 8 is a sectional view showing another example of a conventional door structure.

FIG. 9 is a sectional view showing still another example of the conventional door structure.

[Explanation of symbols]

 1 Front Panel 2 Medium Insertion Portion 3 Mechanical Chassis 4 Medium 10, 20 Door Structure 11 First Door 11a Opening 13 Torsion Spring (Spring Member) 15, 15 'Second Door 15'a Thick Part 16 Torsional Spring 21 Door 23, 24 torsion spring (spring member) 25 sealing member

Claims (2)

[Scope of utility model registration request] 1. A door structure of a medium insertion opening in an electronic device for reproducing information from or recording / reproducing information to / from a medium, which has an opening through which the medium can pass and is rotatably attached to the outside in the medium insertion opening. A first door, a spring member for urging the first door inward, and an inner surface of the first door,
A medium insertion opening, comprising: a second door rotatably mounted inwardly so as to close the opening; and a spring member for urging the second door outward. Door structure. 2. A door structure for a medium insertion opening in an electronic device for reproducing or recording / reproducing information on / from a medium, wherein the door is rotatable inside or outside and closes the medium insertion opening. A door structure for a medium insertion opening, comprising a spring member that elastically returns to a neutral position when pivoted to one side.