JP2538502B2 - Door device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is applied to general recording / reproducing apparatus for recording / reproducing by introducing a recording medium into the apparatus.
The present invention relates to a door device that closes a recording medium insertion port after introducing the recording medium into the device.

[0002]

BACKGROUND ART Ri by conventional, as the door device used for the recording and reproducing apparatus has been used frequently structure comprising one plate door as shown in FIG.

[0003] At a sixth figure frame 1 made of synthetic resin or the like
It has an open mouth portion 1a of the recording medium insertion. The plate door 21 which is rotatably supported by support shafts 23 made of gold <br/> genus or synthetic resin or the like, in a direction to close the front Symbol open mouth portion 1a
It is biased by a spring 22 . The plate door 21 when the recording and reproducing apparatus in a recording medium (not shown) is not on is closed the opening 1a, at the time of the recording medium inserted, it is pushed in the direction D by the recording <br/> medium The plate door 21 rotates in the E direction around the support shaft 23, and after loading, the opening 1a
The inside of the device was visible from the inside.

[0004] Therefore the structure, it was not possible to prevent the entry of dust and foreign matter into the record reproduction apparatus interior when the recording medium mounted. Therefore, it is desirable to have a mechanism in which the opening 1a is closed regardless of whether the medium is mounted or not mounted. However, in order to do this with one door, the mechanism is inevitably complicated and unsuitable for downsizing of the device. Is. There is also a problem that a detection device such as a sensor is required to confirm the presence / absence of a recording medium in the device .

To compensate for these drawbacks, a two-door mechanism as shown in FIG. 7 has been proposed. In FIG. 7, members which are the same as or considered to be the same as those in FIG. 6 are denoted by the same reference numerals and detailed description thereof is omitted. Te is at in Figure 7, the shutter made of gold belonging to the genus, etc.
24 is an approximately U-shaped thin plate, and has engaging holes at both ends to which engaging projections 25b of a lever 25 described later are engaged.
24a is provided. The lever 25 has a substantially V shape, and has an abutting portion 25a at one end against which a recording medium (not shown) abuts, and an engaging protrusion 25b at the other end to engage with the engaging hole 24a. , And is attached to the frame 1 via the pins 26. That is, the lever 25 is swingably attached by the pin 26 while the shutter 24 is sandwiched between the lever 25 and the frame body 1. At this time, the lever 25
The engagement projection 25b engaged in the engaging hole 24a of the shutter 24 constitutes a link mechanism between the lever 25 and the shutter 24, to convert the rocking movement of the lever 25 into a linear reciprocating motion of the shutter 24. Further, a spring 27 is suspended between the locking holes 25c of the lever 25, and always urges the side of the lever 25 on which the engaging projection 25b is formed in the direction opposite to the insertion opening, that is, in the direction in which the shutter 24 is released. .

Next, the operation of the door device constructed as described above will be described. First, the recording medium is the plate door 21.
Is pushed open and inserted, and when it is introduced to the specified position, it is lowered substantially vertically to the turntable side (not shown). At this time, the rear end of the recording medium comes into contact with the contact portion 25a,
5a is rotated downward (direction of FIG. 7F). As a result, the engagement protrusion 25b rotates upward (direction in FIG. 7G), and the shutter 24 slides upward (direction in FIG. 7H) along the inner side of the frame 1 to completely open the opening 1a for inserting the recording medium. Close. At this time, the plate door 21 contacts the upper surface of the recording medium and is in a half-open state, and the shutter 24 is positioned between the plate door 21 and the frame 1 to perform the above-described closing.

When the eject lever (not shown) is operated after the recording or reproduction is finished, the contact portion 25a of the lever 25 is raised (the direction opposite to F in FIG. 7) as the medium is raised, and the shutter 24 is lowered. (FIG. 7 anti-H direction).
Then, when the medium is ejected to the outside of the apparatus, the plate door 21 closes the opening 1a by the elastic force of the spring 22.

[0008]

[Problems to be Solved by the Invention]
In a door device such as the above, since the shape, color or display of the door when the recording medium is mounted and when the recording medium is not mounted is not distinguished, it is impossible to determine which state the user is in just by looking at the door. inspection of the sensors and the like for the presence or absence confirmation of the recording medium
There were problems such as the need for an output device . The present invention has been devised in view of such drawbacks, and can detect a sensor or the like .
It is an object of the present invention to provide a door device that allows a user to distinguish between when a recording medium is attached and when the recording medium is not attached, without using the device .

[0009]

In order to achieve the above object, a door device of the present invention comprises a first door for closing a recording medium insertion port when a recording medium is not attached to a recording / reproducing device, and
A second door that closes the recording medium insertion port when the recording medium is loaded in the recording / reproducing apparatus, and the recording medium is inserted when the first door and the second door close the recording medium insertion port.
Of the first door and the second door visible from the body insertion opening
In the portion, at least one of the shape, the color, and the display of the first door is different from that of the second door .

[0010]

According to the above means, it is possible to visually check from the recording medium insertion port.
At the first and second door parts
At least one of the shape, color, or display of the second
Since it is different from A , the recording medium insertion slot is blocked.
By simply observing the door that is open, it is possible to distinguish between when the recording medium is attached and when the recording medium is not attached.

[0011]

An embodiment of the present invention will be described below with reference to the drawings. 1 to 5 are for explaining an embodiment of the present invention, FIG. 1 is an exploded perspective view thereof, and FIGS. 2 to 5 are operation explanatory views.

In FIG. 1, an opening 1a for inserting a recording medium is provided.
On both sides of the frame body 1 made of synthetic resin or the like having a later-described curved door support portion 1b, 1c are integrally formed, the supporting portion 1b, each of the 1c support hole 1 d, notch 1e
Is provided. Further, at the end portion of the one support portion 1b,
A stopper 1f for integrally controlling the angle of rotation of the curved door 2 which will be described later is integrally formed. In addition, the first
The stage door 2 made of synthetic resin or the like has an opening 1a.
The curved door 2a has a curved surface portion 2a for closing the shaft 2d, and a shaft 2d engaging with the support hole 1d and the notch 1e is provided on both side surface portions 2b, 2c of the curved door 2, and the curved door 2 rotates about the shaft 2d. The hole 2e is formed as much as possible and has a support hole 2e for supporting the plate door 3 described later.

Further, a protruding portion 2f extending in the opposite direction to the curved surface portion 2a is integrated with the one side surface portion 2c, and a torsion spring 5 described later is locked to the protruding portion 2f. switching Operation notch 2g is provided. Also, the second
The plate-like plate door 3 which is a door has a shaft 4 fixed to the upper end portion 3a thereof . Both ends of the shaft 4 are engaged with the support holes 2e so that the plate door 3 can rotate about the shaft 4. Furthermore , the torsion spring 5 has locking portions 5 at both ends.
a, the contact portion 5b is bent, and the locking portion 5
a is locked in the notch 2g, the corresponding contact portion 5b contacts a part of the back surface of the plate door 3, and the torsion spring 5 closes the curved door 2 and the plate door 3 to the opening 1a. It is urged toward. Next, the operation of the present invention will be described with reference to FIGS.

[0014] (the loading time) First recording medium 10 from the state shown in FIG. 2, the plate door 3
The If and pressed to be inserted into the apparatus, the plate door 3 against the biasing force of the torsion spring 5, rotates in the A direction in FIG. 2
To open the opening 1a . At the same time, since the shaft 4 is also pushed together, the curved door 2 rotates about the shaft 2d until a position where a part of the peripheral edge of the side surface portion 2b contacts the stopper 1f (see FIG. 3).

In these figures, the recording / reproducing apparatus is
As the recording medium 10 can be slid in the inserting and ejecting directions,
A sliding plate 11 is arranged. In addition, the recording medium 10 is protected.
Introducing the recording medium 10 into the recording / reproducing device in cooperation with the sliding movement of the sliding plate 11 together with the holding itself 12 ;
Alternatively, the recording medium is discharged to the outside of the recording / reproducing apparatus, or the recording medium 1
0 for locking 0 to a turntable not shown,
Or move to pull up from the turntable. The chassis 13 includes the frame 1 and the sliding plate 11
And so on . Then, the sliding plate 11 and the holder 12
Together with the recording medium 10 by a force such as a spring (not shown)
Once it is drawn into the recording and reproducing apparatus, as shown in FIG. 3,
In the curved door 2, the protruding portion 2f contacts the sliding plate 11.
And is held so as not to close the opening 1a of the frame body 1.
From the closed state, the urging force of the torsion spring 5
A state of being rotatable so as to close the opening 1a in the B direction.
However, the plate door 3 and the shaft 4 hit the recording medium 10.
Once it is in a state where it cannot rotate.

Next, the holder 12 holds the recording medium 10.
Decreasing at state, Tante not shown is the recording medium 10
When engaging in Buru, curved door 2 with drop of the recording medium 10, the torsion spring 5 engaging portion 5a, work on the abutting portion 5b
Due to the difference in rotational force, it rotates in the direction B in FIG. 4 and rotates to the position where it completely closes the opening 1a, and the loading operation is performed.
There is complete (see FIG. 5).

(Ejecting) The process reverse to that of the above-described loading is followed. When the holding body 12 is lifted from the state of FIG. 5, the plate door 3 and the shaft 4 are pushed upward by the recording medium 10, and at the same time, a rotational force acts on the curved door 2 in the C direction in FIG. Rotates to a position where the opening 1a is fully opened (see FIG. 4).

By operating an eject lever (not shown), the sliding plate 1 is moved by the movement of a spring ( not shown ).
Since 1 and the holder 12 move in the medium ejecting direction, the recording medium 10 also moves in the ejecting direction (see FIG. 3). Then, the sliding plate 11 that has moved toward the outlet side,
Supports the protruding portion 2f of the curved door 2. Along with the discharge of the recording medium 10, the plate door 3 is ejecting operation by closing the opening 1a by the force of the torsion spring 5 is completed (see FIG. 2).

In the present invention, naturally, it is also possible to divide the torsion spring 5 into two or more springs and arrange the curved door 2 and the plate door 3 separately so as to urge them.

When the curved door 2 closes the opening 1a, the curved door 2 is pressed against the frame 1 by a spring or the like,
The packing is installed between the curved door 2 and the frame 1 to improve the airtightness, so that fine dust can be stored inside the recording / reproducing apparatus.
It is also possible to prevent the intrusion of such as. In addition, the frame 1 can be integrated with the chassis 13 to greatly reduce the number of parts and facilitate the assembly.

The recording medium 10 is inserted in the recording / reproducing apparatus by changing the shapes of the curved door 2 and the plate door 3 or changing the materials to change the gloss and color of the door surface.
It is naturally possible to judge whether or not it is. In addition,
Either the curved door 2 or the plate door 3 should have a different color.
Apply paint, etc., or a table written on the moving surface.
By changing the indications, etc., more reliable visual identification
It can be anything.

[0022]

INDUSTRIAL APPLICABILITY The present invention inserts a recording medium of a recording / reproducing apparatus.
Smell of the first and second doors visible from the mouth
And at least one of the shape, color, or display of the first door
Since the one is different from the second door , the record is re-recorded.
The user who operates the live device does not need a detection device such as a sensor for confirming the presence or absence of the recording medium, and the determination as to whether the recording medium is attached or not can be made at a glance from outside the recording / reproducing device.
With the configuration of the door device of the present invention,
A low-cost recording / reproducing device can be provided. Ma
In addition, when the recording medium is not installed in the recording / playback device,
The recording medium insertion slot is always
Since it is blocking the
It is possible to prevent recording due to dust, etc.
It is possible to prevent a failure of the playback device.

[0023]

[Brief description of drawings]

FIG. 1 is an exploded perspective view of an embodiment of the present invention.

FIG. 2 is an operation explanatory diagram of the embodiment of the present invention .

FIG. 3 is an operation explanatory diagram of the embodiment of the present invention .

FIG. 4 is an operation explanatory diagram of the embodiment of the present invention .

FIG. 5 is an operation explanatory diagram of the embodiment of the present invention .

FIG. 6 is an exploded perspective view of a conventional example.

FIG. 7 is an exploded perspective view of another conventional example.

[Explanation of symbols]

 1 Frame 1a Opening 1f Stopper 2 Curved Door 2d Shaft 2e Support Hole 2f Projection 3 Plate Door 4 Shaft 5 Torsion Spring 5a Engagement 5b Abutment 10 Recording Medium 11 Sliding Plate 12 Holder 13 Chassis

Claims (1)

(57) [Claims] 1. When a recording medium is not attached to a recording / reproducing apparatus ,
A first door that closes a recording medium insertion port, and the recording / reproducing apparatus
In recording medium mounted on, the block the recording medium insertion port 2
And the first door and the second door have the recording
When the medium insertion port is closed, visually check it from the recording medium insertion port.
In the parts of the first door and the second door that can be
At least one of the shape, color, or indication of the first door is the second
Door device characterized in that it is different from the other doors.