JP3074876B2 - Recording device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention operates a holder lock plate which locks a media holder for inserting a disk cassette as a medium at a lock position, and releases the lock of the media holder by the holder lock plate. Recording provided with a lock release mechanism for moving the media holder to the unloading position and ejecting the same
And / or a playback device .

[0002]

2. Description of the Related Art So-called electronic still cameras and disk drives
As a recording and / or reproducing device for a head, etc., a mechanical chassis mounted with a head carriage on which a head is mounted and a lead screw for sliding the head carriage, and mounted on the mechanical chassis so as to be rotatable in loading and unloading directions. A media holder, a holder lock plate for locking the media holder at the loading position, and a lock release mechanism for operating the holder lock plate to release the lock of the media holder, and locking the media holder at the loading position. A recording and / or reproducing apparatus in which the holder lock plate is operated by an unlock mechanism to unlock the media holder by the holder lock plate and move the media holder to the unloading position.
Location is known.

[0003]

The object of the invention is to try to resolve the way the conventional serial
In the recording and / or reproducing apparatus , the lock release mechanism is driven by a dedicated motor, and thus has the following problems.

(1) Since a motor dedicated to the lock release mechanism is used, the number of parts increases and the cost increases accordingly.

(2) An installation space for installing a motor dedicated to the lock release mechanism is required, and recording and / or re-recording is required.
This becomes an obstacle in reducing the size of the raw device , and the dedicated motor becomes heavier.

The present invention can solve the above-mentioned conventional problems by driving the lock release mechanism with a lead screw.

[0007]

According to the present invention, there is provided a mechanical chassis on which a head carriage having a head mounted thereon, a lead screw for sliding the head carriage are mounted, and a rotatable mounting and unloading direction mounted on the mechanical chassis. A recording and / or reproducing apparatus comprising a media holder provided, a holder lock plate for locking the media holder at a loading position, and an unlocking mechanism for operating the holder lock plate to unlock the media holder. The lock release mechanism is driven in the lock release direction by the lead screw via a gear meshing with the lead screw.

[0008] The present invention also relates to the recording and / or reproducing apparatus.
In the arrangement , a ring-shaped groove was formed in the lead screw so as to be continuous with the end of the screw groove.

[0009]

When the lead screw is rotated, the lock release mechanism is operated via the gear meshing with the lead screw to unlock the media holder, and the media holder moves to the unloading position. Is ejected.

Further, since the lead screw is provided with a ring-shaped groove which is continuous with the end of the screw groove, the feed spring (needle) meshing with the lead screw during unlocking deviates from the range of the screw groove. Even in this case, the feed spring smoothly rotates along the ring-shaped groove, thereby preventing generation of abnormal noise and vibration due to the feed spring deviating from the range of the screw groove.

[0011]

Next, a recording and / or reproducing apparatus according to the present invention will be described with reference to the drawings.

In FIG. 1, a recording and / or reproducing apparatus and
The apparatus 1 includes a mechanical chassis 2, a media holder 3 rotatably mounted on the mechanical chassis 2 in a loading direction and an unloading direction, and loading the media holder 3. A holder lock plate 4 for locking to a position and a lock release mechanism 5 (see FIG. 2) for operating the holder lock plate 4 to release the lock of the media holder 3 are provided.

As shown in FIG. 3, a spindle motor 21 for rotating a disk is provided on the mechanical chassis 2,
A head 22 for reading and writing signals on a disk rotated by the spindle motor 21; a head carriage 23 on which the head 22 is mounted; and a guide for moving the head carriage 23 in the radial direction of the spindle motor 21. A guide shaft 24, a lead screw 25 for moving the head carriage 23 along the guide shaft 24, 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 3 will be described.

As shown in FIG. 1, the media holder 3 has a media inlet / outlet 31 at one end, and a holder main body 33 for accommodating and holding a disk cassette 32 as a medium inserted through the media inlet / outlet 31. A lid 34 rotatably attached to the holder main body 33, and is interposed between the holder main body 33 and the lid 34, and the holder main body 33 and the lid 34 are set at a predetermined opening angle. And a torsion coil spring 35 maintained in an open state.

The pivot shafts 36, 36 are provided on both left and right sides of one end of the cover 34 (opposite the media entrance 31).
36 are provided, and these pivot shafts 36, 36 are inserted into the vertically elongated bearing holes 28, 28 of the bearing pieces 27, 27, thereby allowing the pivot shafts 36, 36 to the media holder 3 to be inserted.
Is attached to the mechanical chassis 2 so as to be rotatable and vertically movable.

Then, after inserting the disk cassette 32 into the holder main body 33 from the media entrance 31 of the holder main body 33 in the state shown in FIG. 4, if the upper surface of the lid 34 is pressed downward, First, the pivot shafts 36 of the media holder 3 are lowered to the lower ends of the bearing holes 28 by the media holder driving mechanism 5 described later.
When the lid 34 is further pressed, the lid 34 resists the spring force of the torsion coil spring 35 and the holder main body 33
And an end face plate 37 provided at the tip of the lid portion 34.
Thus, the media entrance 31 of the holder main body 33 is closed.

When the media inlet / outlet 31 of the holder main body 33 is closed by the end face plate 37 of the lid part 34 and the media holder 3 comes to the loading position, lock pins 38, 38 provided on the end face plate 37 are provided. Then, the pin engagement portions 40, 40 of the holder lock plate 4 provided on the front surface of the mechanical chassis 2 are engaged, and the media holder 3 is held at the loading position.

Next, the holder lock plate 4 will be described.

The holder lock plate 4 has guide pins 4 on the front surface 2a of the mechanical chassis 2 as shown in FIGS.
1 and 41 and slidably mounted by long holes 42 and 42, and a coil spring 4 for operating the plate.
Due to the spring force of 3, the pin engaging portions 44 provided on the holder lock plate 4
The holder lock plate 4 is disengaged from the lock pins 38, 38 by a lock release mechanism 5 described below, while a sliding force in the direction of engaging with the lock pins 38, 38 provided on the When it is slid to the position to be locked, it is locked by the plate lock plate 45.

The plate lock plate 45 is provided between the front surface 2 a of the mechanical chassis 2 and the holder lock plate 4.
And one end of the guide pin 4
One of the pins 1 and 41 (the pin on the left side in FIG. 8) is rotatably mounted on the front surface 2a of the mechanical chassis 2 and is attached to a spring locking portion 47 provided near the one end. Coil spring 43 for plate operation
Is locked at one end, and a counterclockwise turning force in FIG. 8 is applied by the spring force of the coil spring 43.

When the holder lock plate 4 is moved to the position where the engagement with the lock pins 38, 38 is released as shown in FIG. An engaging portion 48 provided at an upper end of the lock plate 45 is engaged with an engaged portion 49 provided on the holder lock plate 4 to lock the holder lock plate 4 at that position.

A pressed protrusion 50 for unlocking is formed on the other end of the plate lock plate 45, and the pressed protrusion 50 is provided when the medium holder 3 comes to the loading position. When pressed by the holder 3, the plate lock plate 45 is rotated clockwise in FIG. 8 to release the engagement between the engaging portion 48 and the engaged portion 49. Therefore, the holder lock plate 4 is used for plate operation. As shown in FIG. 9, the pins are automatically slid by the spring force of the coil spring 43, and the pin engaging portions 44, 44 engage with the lock pins 38, 38 provided on the end face plate 37 of the lid 34. Thus, the media holder 3 is held at the loading position.

Next, the lock release mechanism 5 will be described.

As shown in FIGS. 2 and 3, the lock release mechanism 5 has an engagement portion 51 provided at one end thereof engaged with an engaged portion 52 provided on the holder lock plate 4, and
A hook-shaped rotating lever 54 whose center is pivotally supported on the lower surface of the mechanical chassis 2 by a shaft 53, one end of which is pivotally supported by a shaft 55 at the other end of the rotating lever 54, and a guide. By inserting guide pins 57, 57 provided on the lower surface of the mechanical chassis 2 into the holes 56, 56, a slide lever 58 slidably mounted on the lower surface of the mechanical chassis 2, and the other end of the slide lever 58 Gear 61 provided with a cam projection 60 for pressing a pressed portion 59 provided on the cam gear 61
A pinion 62 meshing with the cam gear 61, and a helical gear 64 attached to the rotating shaft 63 of the pinion 62 and meshing 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 64, the pinion 62
, The cam gear 61 rotates counterclockwise (from the two-dot chain line to the broken line in FIG. 3), and the cam projection 60
9, the slide lever 58 is slid toward the rotation lever 54, and the rotation lever 54 is rotated about the shaft 53 in the counterclockwise direction in FIG.

When the rotating lever 54 rotates counterclockwise, the engaging portion 51 at one end of the rotating lever 54 presses the engaged portion 52 and slides the holder lock plate 4 in the unlocking direction. It is made to let.

A ring-shaped groove 66 is provided at one end of the screw groove 65 of the lead screw 25 as shown in FIG.
Even when the feed spring (needle) 67 of the head carriage 23 meshing with the lead screw 25 is out of the range of the screw groove 65, the feed spring 67 is smoothly rotated along the ring-shaped groove 66, and The generation of abnormal noise and vibration due to the feed spring 67 deviating from the range of 65 is prevented.

Next, the media holder driving mechanism 71 will be described.

A media holder driving mechanism 71 slides along the mechanical chassis 2 as shown in FIG. 1 to move the media holder 3 up and down.
One end is pivotally supported by the slider 72 and the other end is pivotally supported by the media holder 3.
When the slider 72 is slid in the direction to move the media holder 3 upward, the media holder 3 is rotated in the unloading direction, and when the slider 72 slides in the direction to move the media holder 3 downward, Are provided in the loading direction.

As shown in FIG. 6, the slider 72 has a pair of left and right side plates 74, 75, and a pair of these side plates 74, 75.
It is formed in a plane U shape by a connecting plate 76 connecting one end side of 75 and is slidably mounted on the mechanical chassis 2.

A pair of left and right cam projections 77, 77 are erected at the tips of the pair of left and right side plates 74, 75, and inclined cam grooves 78, 78 are formed in these cam projections 77, 77. I have.

The pair of left and right cam projections 77, 77 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 34 of the media holder 3. The pivot shafts 36 provided on the left and right side surfaces of the lid 34 are inserted into the inclined cam grooves 78.

The slider 72 is fully slid in the unloading direction (the direction of arrow A in FIG. 6) by a coil spring 79 for operating the slider, and as shown in FIG. 78,7
8 keeps the pivot shafts 36, 36 pushed up to the upper ends of the vertically long bearing holes 28, 28 of the bearing pieces 27, 27.

As shown in FIGS. 4 and 6, the pair of left and right rotating levers 73, 73 have first shafts 81, 8 at one end.
1 is pivotally supported by the slider 72, and the other end is pivotally supported by the second shafts 82, 82 on both left and right sides of the lid 34 of the media holder 3.

When the slider 72 is slid in the unloading direction by the spring force of the slider operating coil spring 79, the pair of left and right rotating levers 73, 73 stand upright at a predetermined inclination angle θ. And the media holder 3 is maintained in the unloading state, and when the upper surface of the lid portion 34 is pressed in order to change the media holder 3 from the unloading state to the loading state, the rotation lever The sliders 73 are slid in the loading direction (the direction of the arrow B in FIG. 4) by the first shafts 82 while falling down in the horizontal direction so that the inclination angle θ becomes smaller, as shown in FIG. As described above, the cam projections 77, 7
7, the pivot shafts 36, 3 are provided by the inclined cam grooves 78, 78.
6 are inserted into the vertically long bearing holes 28, 28 of the bearing pieces 27, 27.
Is kept pressed down to the lower end side.

In FIG. 7, reference numeral 83 denotes a slider 7
It is a damper connected to the tip of one of the two left and right side plates 74 and 75, and the sliding speed of the slider 71 is adjusted by the damper 83.

In FIG. 1, reference numeral 101 denotes a media discharge lever.
2, the disc holder 32 is rotatably attached to the holder main body 33 of the media holder 3. When the disc cassette 32 is inserted into the holder main body 33, the disc cassette 32 is pressed on the front surface of the disc cassette 32, and the lever return spring 103 The disc cassette 32 is rotated by the spring force of the lever return spring 103 to eject the disc cassette 32 from the holder main body 33 at the time of ejection. It is made to let.

As shown in FIG. 11, the media discharge lever 101 is formed of a sheet metal, and an elastic stopper piece 104 is integrally formed on the upper end side thereof. As shown in FIG. 13, the top plate 3 of the holder body 33 of the media holder 3 is provided.
It is in a state of being pressed against the lower surface of 3a.

When the media discharge lever 101 is pressed by the disk cassette 32 and rotates to a predetermined position, the elastic stopper piece 104 is elastically restored as shown in FIGS. The media eject lever 101 is engaged with an engaging portion 105 provided on the top plate 33a of the holder main body 33 to prevent the media ejection lever 101 from returning and rotating. When the cover 34 is closed, as shown in FIGS. 16 and 17, the cover 34 is pressed by a stopper pressing portion 106 formed on the lid portion 34, 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 32 is inserted to a predetermined position, the media ejection lever 101 is locked by an elastic stopper piece 104 when the disc cassette 32 is inserted to a predetermined position. State.

Thereafter, the lid 3 of the media holder 32
4, the sliders 72 are slid in the loading direction while rotating so that the rotation levers 73 of the media holder driving mechanism 71 fall, and the inclined cam grooves 78 provided on the slider 72 are provided. , 78, the pivot shafts 36, 36 of the lid 34 are pushed down to the lower ends of the bearing holes 28, 28 of the bearing pieces 27, 27.

Further, when the lid 34 is pushed, the lid 34 rotates about the pivots 36, 36 and the end plate 37
To close the media entrance 31 of the holder body 33 with
Almost simultaneously, the stopper pressing portion 106 provided on the lid portion 34
And the elastic stopper piece 104 of the media discharge lever 101
To release the lock of the media discharge lever 101.

Further, when the lid 34 is pressed, the lid 34 and the disk main body 33 overlap and rotate to the loading position.

When the media holder 3 comes to the loading position, a pressing portion provided on the lid portion 34 presses the unlocked projection 49 of the plate lock plate 45 for unlocking.
Since the plate lock plate 45 rotates to release the lock of the holder lock plate 4, the holder lock plate 4 slides in the locking direction by the spring force of the plate operating coil spring 43, and the pin engagement portion 44 , 4
4 is a lock pin 3 provided on the end face plate 37 of the lid 34.
The media holder 3 is held at the loading position by engaging with the recording media 8, 38, and recording is performed in this state.

To eject the recording after the recording is completed, the lock release mechanism 5 is operated by rotating the lead screw 25 in one direction.

That is, when the lead screw 25 is rotated in one direction, the cam gear 61 is rotated via the helical gear 64 and the pinion 62, and is provided on the slide lever 58 by the cam projection 60 provided on the cam gear 61. By pressing the pressed portion 52, the slide lever 58 slides, and by the slide of the slide lever 58, the rotation lever 54 rotates to slide the holder lock plate 4 in the unlocking direction. 4, the lock of the lid 34 of the media holder 3 is released, and the holder lock plate 4 is locked at the release position by the plate lock plate 45.

When the lid 34 is unlocked by the holder lock plate 4, the media holder driving mechanism 7 is released.
The first slider 72 is slid in the unloading direction by the spring force of the coil spring 79 for operating the slider, and the pivot shafts 36, 3 are formed by the inclined cam grooves 78, 78.
6 is pushed up to the upper end side of the bearing holes 28, 28 of the bearing pieces 27, 27, and the media holder 3 is rotated in the unloading direction by the rotating levers 73, 73.

When the media holder 3 rotates in the unloading direction, the lid 34 is opened with respect to the holder main body 33 by the spring force of the torsion coil spring 35 interposed between the holder main body 33 and the lid 34. In this state, the closing of the media entrance 31 of the disk main body 33 by the end face plate 37 is released, so that the disk cassette 32 housed in the disk main body 33 is
1 automatically discharges from the media entrance 31.

Then, as described above, the lead screw 25 is rotated in one direction and the lock release mechanism 5 is operated to complete the unlocking of the media holder 3 by the holder lock plate 4. 2
5 is rotated in reverse, and the slide lever 5 is rotated by the cam gear 61.
8 is released 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 pivot shafts 36, 36 are provided on the lid 34 is shown, but the pivot shafts 36, 36 may be provided on the holder main body 33.

The bearing holes 28 for guiding the vertical movement of the pivot shafts 36 may be formed by erecting guide pins on the mechanical chassis 2.

In this embodiment, the recording device is used exclusively.
Has been described, the present invention
A playback device such as a disk drive for recording and playback and both
This also includes a device having the function of (1) .

[0056]

The recording and / or reproducing apparatus according to the present invention has the following effects.

(1) Since the unlocking operation is performed by the lead screw, the motor for the unlocking mechanism is not required, and the number of parts can be reduced, and the size and weight can be reduced. Costs can be reduced.

(2) Since a ring-shaped groove is formed at the end of the screw groove of the lead screw, the feed spring (needle) of the head carriage deviates from the range of the screw groove during operation of the lock release mechanism. Even in this case, the feed spring idles in the ring-shaped groove to prevent generation of abnormal noise and vibration.

[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.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Recording and / or reproducing apparatus , 2 ... Mechanical chassis, 3 ...
Media holder, 4 ... Holder lock plate, 5 ... Lock release mechanism, 22 ... Head, 23 ... Head carriage,
25: Lead screw, 64: Gear.

Claims (2)

(57) [Claims] 1. A mechanical chassis mounted with a head carriage on which a head is mounted, a lead screw for sliding the head carriage, a media holder rotatably mounted on the mechanical chassis in a loading and unloading direction, and the media. A holder lock plate that locks the holder at the loading position; and a lock release mechanism that operates the holder lock plate to release the lock of the media holder. The lock release mechanism meshes with the lead screw. A recording and / or reproducing apparatus characterized in that it is driven by a lead screw in an unlocking direction through a gear. 2. The recording and / or reproducing apparatus according to claim 1, wherein the lead screw is formed with a continuous ring-shaped groove at an end of the screw groove.
Place .