JP3044889B2 - Recording and / or playback device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of mounting one end of a media holder on a mechanical chassis on which a spindle motor or the like is mounted.
Rotatably pivoted by the pivot shaft, around the said pivot shaft, on the media holder, by rotating downward, so as to perform media loading and unloading of the recording medium In a recording and / or reproducing apparatus such as an electronic still camera or the like, the position of the rotation shaft is moved upward with respect to the mechanical chassis and is rotated, so that the elevation angle of the media holder during unloading, that is, the so-called elevation angle. The opening angle can be reduced.

[0002]

2. Description of the Related Art As shown in FIG. 18, a mechanical chassis 201 mounted with a spindle motor (not shown) and the like as a recording and / or reproducing device,
There is known an apparatus having a media holder 203 which is rotatably supported at one end by a rotation shaft 202.

[0003] The recording and / or reproducing apparatus includes:
With the rotation shaft 202 as a fulcrum, the media holder 2
When the media entrance 204 at the other end of the media holder 203 is inclined upward at a predetermined elevation angle, so-called open angle, the media holder 203 is in an unloading state. When the disk cassette 205 as a medium is inserted into the inside, the media holder 203 is turned downward to be in a loading state.
The disk 206 of the disk cassette 205 housed therein is chucked on a spindle motor and rotates with the spindle motor.

[0004]

By the way, in the above-mentioned conventional recording and / or reproducing apparatus, the media holder 2
03 is fixed to the mechanical chassis 203 ( rotating shaft 202).
( The position of the shaft 202 cannot be displaced in the vertical direction or the like.)

(1) The opening angle (inclination angle) of the media holder 203 when the media holder 203 is in the unloading (ejecting) state becomes large, so that the spindle motor, the head, and the like from below the media holder 203 at the time of unloading. Is seen, which is not desirable in appearance.

In order to make the spindle motor, the head and the like invisible, a special blindfold is required.

(2) Since the opening angle of the media holder 203 is large, a dead space for securing the opening angle increases, and it is difficult to reduce the thickness of the recording and / or reproducing apparatus.

The present invention solves the above-mentioned conventional problems and reduces the opening angle of the media holder at the time of unloading, so that the spindle motor, the head and the like are hardly seen from below the media holder even at the time of unloading. It is intended to provide a recording and / or reproducing apparatus which can be easily made thin.

[0009]

[Means for Solving the Problems] A mechanical chassis and one end side
The rotating shaft provided on the
It is movably supported, and the above-mentioned rotating shaft is vertically movable.
A recording and / or reproducing apparatus including a media holder that is supported and is capable of moving upward and downward ,
The media stored in the media holder is ejected
When the media holder is moved upward,
As well as being pivoted in the opening direction.

[0010]

Since the position of the rotation axis of the media holder is moved upward during unloading, the opening angle of the media holder is reduced by that amount, and the media holder is nearly horizontal, and the media holder is closed. Since the spindle motor, the head, and the like are difficult to see from below, there is no need for a blindfold or the like.

In addition, since the media holder is nearly horizontal, it is easy to arrange an auto-eject mechanism or the like in the recording and / or reproducing apparatus, and the recording and / or reproducing apparatus can be made thin. Become.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, a recording and / or reproducing apparatus according to the present invention will be described by taking an electronic still camera (Mabica) as an example. FIG. 1 is a perspective view of a recording and / or reproducing apparatus according to the present invention. The apparatus 1 is configured such that one end side can be turned on a mechanical chassis 2 by a rotating shaft 3 and the mechanical chassis 2 can be moved up and down. a media holder 4 attached, with rotating the media holder 4 in the unloading direction, the rotation shaft 3 is moved upward, and with rotating the media holder 4 in the loading direction, the rotation shaft 3 And a media holder drive mechanism 5 for lowering the media holder.

As shown in FIG. 3, a spindle motor 21 for rotating a disk, a head 22 for reading signals from and writing signals to the disk rotated by the spindle motor 21 are provided on the mechanical chassis 2. A head carriage 23 that supports the head 22, a guide shaft 24 that guides the head carriage 23 in the radial direction of the spindle motor 21, and a lead screw that moves the head carriage 23 along the guide shaft 24. 25 and a stepping motor 26 for rotating the lead screw 25 are attached.

A pair of left and right bearing pieces 27, 27 are provided upright on both left and right sides on one end side (rear end side) of the mechanical chassis 2, and these bearing pieces 27, 27 have vertically elongated bearings. Holes 28, 28 are formed.

Next, the media holder 4 will be described.

As shown in FIG. 1, the media holder 4 has a media inlet / outlet 41 at one end, and a holder body 43 for accommodating and holding a disk cassette 42 as a medium inserted through the media inlet / outlet 41. A lid 44 rotatably attached to the holder main body 43, and a lid 44 interposed between the holder main body 43 and the lid 44, and the holder main body 43 and the lid 44 are set at a predetermined opening angle. And a torsion coil spring 45 maintained in an open state.

The rotating shafts 3 and 3 are provided on both left and right sides of one end of the lid 44 (opposite the media entrance 41).
Are provided, and these rotating shafts 3 are connected to the bearing pieces 2.
The rotating shafts 3, 3 and the media holder 4 are attached to the mechanical chassis 2 so as to be rotatable and vertically movable by being inserted into the vertically long bearing holes 28, 28 of the 7, 27 .

Then, after inserting the disk cassette 42 into the holder main body 43 from the media entrance 41 of the holder main body 43 in the state shown in FIG. 4 and pressing the upper surface of the lid 44 downward, First, the rotation of the media holder 4 is performed by the media holder driving mechanism 5 described in detail below.
As the shafts 3, 3 descend to the lower ends of the bearing holes 28, 28, the lid 44 overlaps the holder body 43 against the spring force of the torsion coil spring 45, as shown in FIG. End plate 46 provided at the tip of lid portion 44
Thus, the media entrance 41 of the holder main body 43 is closed.

When the media inlet / outlet 41 of the holder main body 43 is closed by the end plate 46 of the lid 44 and the media holder 4 comes to the loading position, the lock pins 47 provided on the end plate 46 are locked. Then, the pin engagement portions 49, 49 of the holder lock plate 48 provided on the front surface of the mechanical chassis 2 are engaged, so that the media holder 4 is held at the loading position.

Next, the media holder driving mechanism 5 will be described.

As shown in FIG. 1, the media holder driving mechanism 5 slides along the mechanical chassis 2 to move the media holder 4 up and down. The slider 51 has one end pivotally supported by the slider 51. When the end side is pivotally supported by the media holder 4 and the slider 51 slides in a direction for moving the media holder 4 upward, the media holder 4 is rotated in the unloading direction,
When the slider 51 slides in the direction for moving the media holder 4 downward, a pair of left and right rotating levers 52 and 5 for rotating the media holder 4 in the loading direction.
2 is provided.

As shown in FIGS. 6 and 7, the slider 51 includes a pair of left and right side plates 53 and 54 and a pair of side plates 5 and 5.
It is formed in a plane U shape by a connecting plate 55 connecting one end sides of the base plates 3 and 54, and is slidably mounted on the mechanical chassis 2.

A pair of left and right cam portions 56, 56 are provided upright at the tips of the pair of left and right side plates 53, 54.
The cam portions 56, 56 are formed with inclined cam grooves 57, 57.

The pair of left and right cam portions 56, 56 are inserted between the pair of left and right bearing pieces 27, 27 provided on the mechanical chassis 2 and the left and right side surfaces of the cover portion 44 of the media holder 4. The rotating shafts 3 provided on the left and right sides of the lid 44 are inserted into the inclined cam grooves 57.

The slider 51 is fully slid in the unloading direction (the direction of arrow A in FIG. 6) by a coil spring 58 for operating the slider.
As shown in FIG. 4, the rotating shafts 3, 3 are kept pushed up to the upper ends of the vertically long bearing holes 28, 28 of the bearing pieces 27, 27 by the inclined cam grooves 57, 57. doing.

As shown in FIGS. 4 and 6, one end of the pair of left and right rotating levers 52, 52 has first shafts 61, 6 as shown in FIGS.
1 is pivotally supported by the slider 51 and the other end is
2, 62 are pivotally supported on the left and right side surfaces of the lid portion 44 of the media holder 4.

When the slider 51 is slid in the unloading direction by the spring force of the coil spring 58 for operating the slider, the pair of left and right rotating levers 52, 52 are erected at a predetermined inclination angle θ. To keep the media holder 4 in the unloading state,
When the upper surface of the lid portion 44 is pressed in order to change the unloading state from the unloading state, the rotating levers 52, 52 fall in the horizontal direction so as to reduce the inclination angle θ, while the first shaft 61, 61 and the slider 51 is slid in the loading direction (direction of arrow B in FIG. 4), as shown in FIG. 5, the rotation shaft 3 in inclined cam grooves 57, 57 provided on the cam portion 56, 56 , 3 are kept pressed down to the lower ends of the vertically long bearing holes 28, 28 of the bearing pieces 27, 27.

In FIG. 7, reference numeral 59 denotes a slider 51.
And a damper connected to the tip of one of the left and right side plates 53, 54, and the sliding speed of the slider 51 is adjusted by the damper 59.

Next, the holder lock plate 48 will be described.

As shown in FIGS. 8 and 9, the holder lock plate 48 is slidably mounted on the front surface 2a of the mechanical chassis 2 by guide pins 71, 71 and long holes 72, 72. The direction in which the pin engagement portions 49, 49 provided on the holder lock plate 48 engage with the lock pins 47, 47 provided on the end face plate 46 of the lid portion 44 by the spring force of the coil spring 73 of FIG. (In the direction of arrow A), the holder lock plate 48 slides to a position where the engagement with the lock pins 47 is released by a lock release mechanism 81 described below. Is locked by the plate lock lever 74.

The plate lock lever 74 is sandwiched between the front surface of the mechanical chassis 2 and the holder lock plate 48, and has one end on one side of the one guide pin 7
1 (the left guide pin in FIG. 8), the mechanical chassis 2
And one end of the plate operating coil spring 73 is locked by a spring locking portion 76 provided near the one end side. The turning force in the counterclockwise direction in FIG. 8 is applied by the spring force.

When the holder lock plate 48 is moved to a position where the engagement with the lock pins 47, 47 is released as shown in FIG. The engaging portion 77 provided at the upper end of the lock lever 74 engages with the engaged portion 78 provided on the holder lock plate 48, and the holder lock plate 4
8 is locked in that position.

At the other end of the plate lock lever 74, a pressed part 79 for unlocking is formed, and the pressed part 79 is used when the medium holder 4 comes to the loading position. Lid 44 of holder 4
The plate lock lever 74 is rotated in the clockwise direction in FIG.
The holder lock plate 48 is automatically slid to the left in FIG. 8 by the spring force of the coil spring 73 for operating the plate, as shown in FIG. The pin engaging portions 49, 49 are engaged with lock pins 47, 47 provided on the end face plate 46 of the lid portion 44, and hold the media holder 4 at the loading position.

Next, the lock release mechanism 81 will be described.

As shown in FIGS. 2 and 3, the lock releasing mechanism 81 has an engaging portion 82 provided at one end thereof engaged with an engaged portion 83 provided on the holder lock plate 48, and A hook-shaped rotating lever 85 whose center is pivotally supported on the lower surface of the mechanical chassis 2 by a shaft 84;
One end is pivotally supported by a shaft 86 at the other end of the mechanical chassis 2, and guide pins 88, 88 provided on the lower surface of the mechanical chassis 2 are inserted into the guide holes 87, 87 to slide on the lower surface of the mechanical chassis 2. A cam gear 92 provided with a slide lever 89 movably attached and a cam portion 91 for pressing a pressed portion 90 provided at the other end of the slide lever 89.
A pinion 93 meshed with the cam gear 92, and a helical gear 95 attached to the rotating shaft 94 of the pinion 93 and meshed with the lead screw 25 on the mechanical chassis 2. I have.

When the lead screw 25 is rotated in one direction, the helical gear 95 and the pinion 93 are rotated.
, The cam gear 92 rotates in the counterclockwise direction (the state shown by the two-dot chain line to the broken line in FIG. 3), and the cam portion 91 presses the pressed portion 90.
Is pressed, and the slide lever 89 is slid toward the rotation lever 85, and the rotation lever 85 is rotated about the shaft 84 in the counterclockwise direction in FIG.

When the rotating lever 85 rotates counterclockwise, the engaging portion 82 at one end of the rotating lever 85 presses the engaged portion 83, and slides the holder lock plate 48 in the unlocking direction. It is made to let.

A ring-shaped groove 97 is formed at one end of the screw groove 96 of the lead screw 25 as shown in FIG. 10, and is engaged with the lead screw 25 when the lock release mechanism 81 is operated. The feed spring (needle) 98 of the head carriage 23 is
6, the feed spring 98 is smoothly rotated along the ring-shaped groove 97, and the screw groove 9 is rotated.
The occurrence of abnormal noise and vibration due to the feed spring 98 deviating from the range of 6 is prevented.

In FIG. 1, reference numeral 101 denotes a media discharge lever.
Thus, when the disk cassette 42 is inserted into the holder main body 43 so as to be rotatable on the holder main body 43 of the media holder 4, the disk cassette 4
2 to rotate against the spring force of the lever return spring 103 to apply a rotating force in the eject direction to the disk cassette 42, and to return by the spring force of the lever return spring 103 at the time of ejection. Moving, disk cassette 4
2 is discharged from the holder main body 43.

As shown in FIG. 11, the media discharge lever 101 is made of a leaf spring material, and an elastic stopper piece 104 is integrally formed on the upper end thereof. As shown in FIGS. 12 to 13, the media holder 4 is pressed against the lower surface of the top plate 43a of the holder main body 43.

When the media ejection lever 101 is pressed by the disk cassette 42 and pivots to a predetermined position, the elastic stopper piece 104 returns elastically as shown in FIGS. The elastic stopper piece 104 is engaged with an engaging portion 105 provided on the top plate 43a of the holder main body 43 to prevent the media ejection lever 101 from returning. When the cover is closed, as shown in FIGS. 16 and 17, the cover is pressed by a stopper pressing portion 106 formed on the lid portion 44, and the engagement with the engaging portion 105 is released.

Next, the operation of the recording and / or reproducing apparatus of the embodiment will be described.

In the state shown in FIG.
When the disc cassette 42 is inserted into a predetermined position, the media ejection lever 101 is locked by an elastic stopper piece 104 when the disc cassette 42 is inserted to a predetermined position. State.

Thereafter, the lid 44 of the media holder 4
When the upper surface is pressed, the sliders 51 are slid in the loading direction while rotating so that the rotating levers 52, 52 of the media holder driving mechanism 5 are tilted, and the inclined cam grooves 57, 57, the lid 44
The rotating shafts 3 are connected to bearing holes 28 of the bearing pieces 27, 27, respectively.
The lid 44 is pivoted about the pivot shafts 3 and 3 and the media port 41 of the holder main body 43 is closed by the end face plate 46 at substantially the same time as the lid 44 is pushed down to the lower end of the lid. The stopper projection 104 of the media discharge lever 101 is pressed by the stopper pressing portion 106 provided at 44 to release the lock of the discharge arm 101.

When the lid 44 is further pressed, the lid 44 and the disk body 43 overlap and rotate to the loading position.

When the media holder 4 comes to the loading position, the pressing portion 80 provided on the lid 44 presses the pressed projection 79 for unlocking the plate lock lever 74, and the plate lock lever 74 rotates. Since the lock of the holder lock plate 48 is released, the holder lock plate 48 is
3 in the locking direction by the spring force of
9 and 49 are engaged with lock pins 47 and 47 provided on the end face plate 46 of the lid 44 to hold the media holder 4 at the loading position, and recording is performed in this state.

When the recording is completed and the ejection is performed, the lead screw 25 is rotated in one direction, and the lock release mechanism 81 is operated.

That is, when the lead screw 25 is rotated in one direction, the cam gear 92 is rotated via the helical gear 95 and the pinion 93, and is provided on the slide lever 89 by the cam portion 91 provided on the cam gear 92. When the pressed portion 90 is pressed, the slide lever 89 slides, and by the slide of the slide lever 89, the rotation lever 85 rotates to slide the holder lock plate 48 in the unlocking direction. The lock of the lid 44 of the media holder 4 by the lock 48 is released, and the holder lock plate 48 is locked at the release position by the plate lock lever 74.

Lid 44 by holder lock plate 48
Is released, the slider 51 of the media holder driving mechanism 5 slides in the unloading direction by the spring force of the slider operating coil spring 58,
The rotating shafts 3, 3 are pushed up to the upper end sides of the bearing holes 28, 28 of the bearing pieces 27, 27 by the inclined cam grooves 57, 57, and the media holder 4 is unloaded by the rotating levers 52, 52. Rotate in the direction.

When the media holder 4 rotates in the unloading direction, the lid 44 is opened with respect to the holder main body 43 by the spring force of the torsion coil spring 45 interposed between the holder main body 43 and the lid 44. The media entrance 41 of the disk body 43 by the end face plate 46.
Is released, the disc cassette 42 housed in the disc main body 43 is moved to the media discharge lever 1.
01, it is automatically discharged from the media entrance 41. Then, as described above, the lead screw 2
5 is rotated in one direction, the lock release mechanism 81 is operated, and the media holder 4 by the holder lock plate 48 is rotated.
When the lock release is completed, the lead screw 25 is rotated in the reverse direction to release the pressing of the slide lever 89 by the cam gear 92, and the head carriage 23 is returned to the reference position to prepare for the next recording.

In the embodiment shown in the drawings, the case where the rotating shafts 3 and 3 are provided on the lid portion 44 is shown, but the rotating shafts 3 and 3 may be provided on the holder body 43.

The bearing holes 28 for guiding the vertical movement of the rotating shafts 3 may be formed by erecting guide pins on the mechanical chassis 2.

Although the embodiment has been described with reference to an electronic still camera exclusively used as a recording device, the present invention also includes a reproducing device such as a disk drive for recording and reproducing.

[0054]

Since the recording and / or reproducing apparatus of the present invention has the above-described structure, the following effects can be obtained.

(1) When the media holder is in the unloading state, the opening angle of the media holder becomes small, so that the spindle motor, the head and the like are hardly seen from below the media holder, and the blindfold is not required. Will be possible.

(2) The rotation shaft can be moved up and down in conjunction with the rotation of the media holder .

[Brief description of the drawings]

FIG. 1 is a perspective view of a recording and / or reproducing apparatus according to the present invention.

FIG. 2 is a bottom view of the recording and / or reproducing apparatus of the present invention.

FIG. 3 is a plan view showing a state where a media holder is removed.

FIG. 4 is a side view of the media holder in an unloaded state.

FIG. 5 is a side view of the loading state of the media holder.

FIG. 6 is a perspective view of a slider.

FIG. 7 is a plan view showing a state where the slider is mounted on a mechanical chassis.

FIG. 8 is a front view of a state in which the lock of the media holder by the holder lock plate is released.

FIG. 9 is a front view of a state in which the media holder is locked by the holder lock plate.

FIG. 10 is a side view of a lead screw.

FIG. 11 is a perspective view of a media discharge lever.

FIG. 12 is a plan view of a media discharge lever before being pressed by a disk cassette.

FIG. 13 is a side view of the media ejection lever before being pressed by the disc cassette.

FIG. 14 is a plan view of the media discharge lever pressed and locked by the disk cassette.

FIG. 15 is a side view of the media ejection lever in a state where the media ejection lever is pressed and locked by the disc cassette.

FIG. 16 is a plan view at the moment when the media discharge lever is pressed by the lid and the lock is released.

FIG. 17 is a side view at the moment when the media discharge lever is pressed by the lid and the lock is released.

FIG. 18 is a perspective view of a conventional example.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Recording and / or reproducing apparatus, 2 ... Mechanical chassis, 3 ...
Rotating shaft , 4 ... Media holder, 5 ... Media holder driving mechanism, 51 ... Slider, 52 ... Rotating lever, 56 ... Cam
Department .

Claims (2)

(57) [Claims] 1. A mechanical chassis, which is rotatably supported by a rotating shaft provided on one end side with respect to the mechanical chassis, and wherein the rotating shaft is vertically movably supported so as to be movable upward and downward. A media holder movable in a downward direction, wherein when the media stored in the media holder is ejected, the media holder is moved in the upward direction and rotated in the opening direction. Recording and / or playback device. 2. A slider, which is urged in one direction and moves along the mechanical chassis when a medium stored in the media holder is ejected, and a slider provided on the slider, with the slider moving along with the slider. A cam portion engaged with the rotating shaft so as to press and move the rotating shaft in the upward direction; and one end side is rotatably supported by the slider,
The other end is rotatably supported by the media holder, and the rotating shaft is pressed and moved upward by the cam portion with the movement of the slider, and the media holder is moved in the opening direction. 2. The recording and / or reproducing apparatus according to claim 1, further comprising a turning lever for turning.