JPH10320882A - Door opening/closing mechanism for recording/ reproducing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the entering of a foreign matter from the opening part of a main body. SOLUTION: An opening part 4 opened in the front is formed in the front wall 3 of a main body 1, a door 7 for opening/closing the opening part 4 is provided in the front wall 3 so as to be freely rotated back and forth, a tray 11 is provided in the main body 1 so as to be freely moved back and forth, the tray 11 is housed in the main body 1, and a recording medium is freely position-changed between a recording/reproducing position for performing the recording/reproducing operation of the recording medium on the tray 11 and an attaching/detaching position for protruding the recording medium forward from the opening part 4 of the main body 1 while opening the door 7 and thereby attaching/detaching it from the tray 11. An interlocking mechanism 14 is provided between the door 7 and the tray 11 for interlocking a movement from the attaching/detaching position of the tray 11 to a recording/reproducing position with a rotation from the opening position of the door 7 to its closing position, and the interlocking mechanism 14 includes A: a cable body 15 for connecting the door 7 with the tray 11 and B: a tension spring 16 for making the cable body tense.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a VTR, a DAT,
The present invention relates to a door opening / closing mechanism in a (magnetic) recording / reproducing apparatus such as a CD.

[0002]

2. Description of the Related Art As shown in FIG. 5, the magnetic recording / reproducing apparatus has a fixed recording / reproducing mechanism 31 (hereinafter referred to as Conventional Example 1) and FIG. There are two types, that is, a type in which the recording / reproducing mechanism 31 is a vertically rotating type (hereinafter, referred to as Conventional Example 2). In these devices, an opening that opens forward is formed in the front wall of the main body, and a door 32 that opens and closes the opening is provided on the support shaft 33 on the front wall of the main body.
, So as to be rotatable in the front-rear direction. A recording / reproducing position in which the tray 34 is provided in the main body so as to be movable in the front-rear direction, and the recording / reproducing operation of the recording medium on the tray 34 is performed when the tray 34 is stored in the main body;
It protrudes forward from the opening of the main body, and its position can be freely changed with respect to the tray 34 to a detachable position where the recording medium is detached.

The prior art 1 is provided with a torsion coil spring 35 for urging the door 32 in the closing direction, and a braking body (damper) 36 which meshes with the door 32 and brakes its rotation. When the tray 34 moves from the recording / reproducing position to the attaching / detaching position, the door 32 is opened by the tray 34.
Further, when the tray 34 moves from the attaching / detaching position to the recording / reproducing position, the door 32 is closed by the spring 35, and the closing speed is set to an appropriate speed by the brake 36.

On the other hand, in the conventional example 2, the recording / reproducing mechanism 31
Is supported by the main body so as to be rotatable in a vertical direction by a support shaft 31A, and as shown in FIG. 6, is a recording / reproducing position where recording / reproducing operation is performed and a recording / reproducing operation is performed. The position can be freely changed to the standby position, which is the set position. An interlocking mechanism 38 for interlocking the vertical movement of the recording / reproducing mechanism 31 and the opening and closing of the door 32 is interposed between the door 32 and the recording / reproducing mechanism 31. The interlocking mechanism 38 includes a lever 39,
It is composed of a pair of front and rear interlocking shafts 40 and 41. The lever 39 is disposed on the side of the door 32 and the recording / reproducing mechanism 31 in the front-rear direction, and is rotatably supported on the main body by a left-right support shaft 39A at the center in the front-rear direction. Elongated holes 42 and 43 in the front-rear direction are formed in the front and rear portions in the left-right direction. The interlocking shafts 40 and 41 project from the door 32 and the recording / reproducing mechanism 31 toward the lever 39, respectively, and are movably inserted in the long holes 42 and 43 of the lever 39 in the front-rear direction.

In the conventional example 2, the recording / reproducing mechanism 3
When 1 is lowered from the recording / reproducing position to the standby position, the interlocking mechanism 38 opens the door 32, and the tray 34 moves from the recording / reproducing position to the attaching / detaching position. Also, the tray 34
Is moved from the attachment / detachment position to the recording / reproducing position, the recording / reproducing mechanism 31 is raised from the standby position to the recording / reproducing position, and the interlocking mechanism 38 closes the door 32.

[0006]

In the conventional example 1, the braking effect is weakened due to the aging of the braking body 36 and the like.
There was a problem that the closing speed of No. 2 was increased. In order to solve this problem, a method of increasing the braking effect of the braking body 36 is considered. However, in this case, even after the tray 34 is moved from the attachment / detachment position to the recording / playback position (for example,
During recording / reproducing), the door 32 may be in a half-open state and foreign matter may enter the main body, and the above method cannot be adopted.

Further, in the second conventional example, there is no problem that the closing speed of the door 32 increases as in the first conventional example. However, in the conventional example 2, even after the tray 34 is moved from the detachable position to the recording / reproducing position, the door 32 is opened for a relatively long time until the recording / reproducing mechanism 31 moves from the standby position to the recording / reproducing position. Because of this state, there is still a risk that foreign matter may enter the main body.

Further, in any of the above conventional examples, the door 32 is
At a position other than the closed position, the tray may be separated from the tray, and in this case, there is a possibility that foreign matter may be caught between the door 32 and the tray.

The present invention provides a door opening / closing mechanism in a recording / reproducing apparatus in which foreign substances are hard to enter the main body, foreign substances are hardly caught between the door and the tray, and the closing speed of the door is not increased. The purpose is to:

[0010]

Means for Solving the Problems To achieve the above object, the present invention is characterized in that a front wall of the main body is formed with an opening which opens forward, and a front wall of the main body is provided with:
A door that opens and closes the opening is provided rotatably in the front-back direction,
A tray is provided on the main body so as to be movable in the front-rear direction. The tray is housed in the main body, and a recording / reproducing position where recording / reproducing operation of a recording medium on the tray is performed. Moving from the tray mounting position to the recording / reproducing position between the door and the tray. And an interlocking mechanism for interlocking the rotation of the door from the open position to the closed position is interposed. A cable connecting the door and the tray,
B. It has a tension means for tensioning the cord. still,
The tensioning means is a tension spring interposed between the main body and the middle part of the cord body in a resilient manner, and one end of the tension spring is slidably engaged with the middle part of the cord body in the longitudinal direction. Sometimes. Further, in the present invention, “recording / reproducing” means “recording” and / or “reproducing”.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of the present invention will be described with reference to FIGS.
It has a bottom wall (chassis) 2 and a front wall (panel, front member) 3 erected at the front end of the bottom wall 2, and an opening 4 that opens forward is formed in the front wall of the main body 1. ing. Body 1
A fixed recording / reproducing mechanism 5 for performing a recording / reproducing operation of a recording medium (not shown) is provided therein. In some cases, the recording / reproducing mechanism 5 is of a vertically rotating type, and the position of the recording / reproducing mechanism can be freely changed between a recording / reproducing position and a standby position by a driving mechanism.

Reference numeral 7 denotes a door (lid, opening / closing door) which is pivotally supported at the front end of the main body 1 and at the lower end of the door 7 by a left-right support shaft 8 so as to be rotatable in the front-rear direction. As shown in FIGS. 1 and 2, the position can be freely changed between a closed position for closing the opening 4 of the main body 1 and an open position for opening the opening 4 of the main body 1 as shown in FIG. In the closed position, the door 7 is in contact with a stopper (not shown) to prevent the door 7 from turning backward from the closed position. Also, from the lower part of one side surface (left side surface in the example in the figure) of the door 7, the upper side (the tip side) than the support shaft 8.
Is protruded outward.

Reference numeral 11 denotes a tray, which is provided in the main body 1 so as to be movable in the front-rear direction, and is housed in the main body 1 by a tray driving mechanism (not shown) as shown in FIGS. 4, the recording / reproducing position where the recording / reproducing operation of the recording medium is performed, and as shown in FIG. The position can be freely changed to a detachable position where the recording medium is detached. A hook shaft 12 protrudes outward from an upper portion of a rear portion of one side surface (the left side surface in the illustrated example) of the tray 11. The tray 11 at the recording / reproducing position
Are separated from the door 7 in the closed position, but they may be brought into contact with each other.

Reference numeral 14 denotes a single interlocking mechanism for interlocking the movement of the tray 11 from the attaching / detaching position to the recording / reproducing position and the turning of the door 7 from the open position to the closed position.
And is interposed between the door 7 and the tray 11. The interlocking mechanism 14 has a cord (string, string) 15, tensioning means, and the hook shafts 9 and 12. The cord 15
Locked (fixed) to both hook shafts 9, 12,
The door 7 is connected to the tray 11 by being stretched between the trays 12, whereby the tray 11 moves rearward,
The door 7 turns in the closing direction. As the cord 15, for example, a (steel) wire is used. The hook shafts 9 and 12
The rope 15 may be directly locked (fixed) to the door 7 and the tray 11 without using the cable. The tensioning means (tension applying means, tensioning means) pulls a middle part (longitudinal direction) of the rope body 15 to apply tension to the rope body 15 to tension the rope body 15. used. Spring 1
The lower end 6 is engaged with the bottom wall 2 of the main body 1 and the upper end is slidably engaged with a middle portion of the rope body 15 in the longitudinal direction thereof. (Pull).

Incidentally, a compression spring or another elastic body may be used as the tensioning means. Further, a spring or an elastic body may be interposed in the middle of the cable body 15 as a tension means. Further, the interlocking mechanism 14 and the hook shafts 9 and 12 may be paired to the left and right.

According to the above example, as shown in FIGS. 1 and 2, when the tray 11 is located at the recording / reproducing position, the elastic force (tensile force) of the tensile spring 16 causes the cable body 15 to pass through the cord 15. , The door 7 is biased in the closing direction and is held in the closed position.

In this state, when the tray 11 is moved to the front mounting / detaching position, as shown in FIG.
Abuts against the door 7 and presses the door 7 to release the door 7 from the tension spring 1
6. Push open against the resilience of 6. Then, as shown in FIG. 4, the tray 11 slides with the door 7 on the lower surface thereof,
Reach the attachment / detachment position. Note that the upper end of the door 7 is in contact with the lower surface of the tray 11 even after the tray 11 reaches the attachment / detachment position. When the tray 11 is moved, the tension spring 16
Of the cable body 15 slides toward the front side of the cable body 15.

Next, contrary to the above, when the tray 11 is moved from the attaching / detaching position to the recording / reproducing position at the rear, the door 7
After sliding on the lower surface of the tray 11, the elastic member 16 comes into contact with the lower edge of the front surface of the tray 11 by the elastic force of the tension spring 16, as shown in FIG. And while maintaining this contact state,
As the tray 11 moves rearward, the door 7 pivots rearward to reach the closed position shown in FIG. 2, and after this movement, the tray 11 further moves rearward, and as shown in FIG. The recording / reproduction position is reached. At the time of the movement of the tray 11,
The upper end of the tension spring 16 slides toward the rear side of the cord 15.

As described above, the door 7 is operated by the interlocking mechanism 14.
When the position of the tray 11 is changed between the recording / reproducing position and the attachment / detachment position, the door 7 is opened and closed in a state of contact with the tray 11 by the interlocking mechanism 14. It is difficult for foreign matter to enter through the opening 4 and the closing speed of the door 7 does not increase. Also, the interlocking mechanism 14
Accordingly, the door is always in contact with the tray 11 at least at a position other than the closed position, so that foreign matter is less likely to bite between the door and the tray.

[0020]

As described in detail above, according to the present invention,
The door and the tray are interlocked by the interlocking mechanism, and when the tray changes position between the recording / reproducing position and the attachment / detachment position, the interlocking mechanism opens and closes the door in contact with the tray. It is difficult for foreign matter to enter from the part, and the closing speed of the door does not increase. Further, the door is always in contact with the tray at least at a position other than the closed position by the interlocking mechanism, so that foreign matter is less likely to be caught between the door and the tray.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an example of an embodiment of the present invention.

FIG. 2 is a vertical sectional view of FIG.

FIG. 3 is an operation state diagram of FIG. 2;

FIG. 4 is an operation state diagram of FIG. 2;

FIG. 5 is a perspective view showing an example of the related art.

FIG. 6 is a perspective view showing another conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main body 3 Front wall 4 Opening 5 Recording / playback mechanism 7 Door 11 Tray 14 Interlocking mechanism 15 Cord 16 Tension spring

Claims (2)

[Claims] An opening which opens forward is formed in a front wall of the main body, and a door which opens and closes the opening is provided on the front wall of the main body so as to be rotatable in the front-rear direction. The tray is provided so as to be movable in the front-rear direction.
A recording / reproducing position where a reproducing operation is performed, and a position where the door protrudes forward from an opening of the main body while opening the door, and is freely changeable to a detachable position where a recording medium is detachably attached to a tray. Between the tray and the tray, moving from the tray mounting / removing position to the recording / playback position,
An interlocking mechanism for interlocking the rotation of the door from the open position to the closed position is interposed. A cord connecting the door and the tray; A door opening / closing mechanism in a recording / reproducing apparatus, comprising a tensioning means for tensioning a cord. 2. The tensioning means is a tension spring interposed between the main body and the middle part of the cord body in a resilient manner, and one end of the tension spring is slidable in the middle part of the cord body in the longitudinal direction. The door opening / closing mechanism of the recording / reproducing apparatus according to claim 1, wherein the door opening / closing mechanism is engaged with the door.