JP3428456B2 - Recording / 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 recording / reproducing apparatus configured so that a cartridge can be slid into and set from an insertion opening provided on a side surface of a cabinet.

[0002]

2. Description of the Related Art As an example of a recording / reproducing apparatus using a cartridge, there is a portable mini disc player.

Regarding this portable mini-disc player (hereinafter referred to as portable MD), a conventional device will be described with reference to the drawings. First, as a first example of a conventional device, there is one shown in FIG. That is, the lid cabinet 51 of the portable MD is rotatably supported on the side of the main body cabinet 52 of the portable MD between the open position indicated by the solid line and the closed position indicated by the phantom line about the rotation fulcrum 53. A disc rotation drive mechanism 54 and an optical pickup 55 are provided on the side of the main body cabinet 52.
(See both FIG. 21B). Also,
A holder 56 is attached to the back surface of the lid cabinet 51. When the lid cabinet 51 is opened and the MD cartridge 57 is inserted into the holder 56, and the lid cabinet 51 is closed in this state, the holder 56 is built into the cartridge 57. The formed disc is connected to a disc rotation drive mechanism 54 on the side of the main body cabinet 52 so that the disc is rotationally driven, and the optical pickup 55 accesses the disc.

The operation of taking out and inserting the cartridge 57 in the portable MD of the first conventional example having such a configuration will be described. First, to remove the cartridge 57, the open operation button 58 is slid to open the lid cabinet 51, and the lock claw 59 and the lid cabinet 51 are disengaged.
By grasping and pulling up both side surfaces 51a, 51b of the cartridge, the lid cabinet 51 rotates and the cartridge 57
21 pops out to the position indicated by the solid line in FIG. 21 (a), so that the user pulls it by pulling it.

Also when the cartridge 57 is inserted, the open operation button 58 is once slid to engage the lock claw 59 with the lid cabinet 51 when the lid cabinet 51 is in the closed position shown by the phantom line. The lid cabinet 51 is removed, the lid cabinet 51 is grasped and pulled up so as to pivot about the pivot point 53, the cartridge 57 is inserted into the holder 56, and then the lid cabinet 51 is closed.

Next, as a second example of the conventional apparatus, there is JP-A-9-223386. This is configured as shown in FIG. 22A is a sectional view showing a mounted state in which the cartridge is completely inserted, and FIG. 22B is a diagram showing a state in which the cartridge is being inserted / removed. In this example, the MD cartridge 63 is inserted while being slid through an opening 62 provided on the side surface of the cabinet 61, and the ejection is slid out by an eject operation knob (not shown).

That is, the cabinet 61 includes a cartridge holder 64 which moves up and down, and a disk rotation drive mechanism 66 and an optical pickup 67 provided on a chassis 65. Then, the cartridge holder 64 is provided between the position of FIG. 22B where the cartridge 63 can be inserted through the opening 62 and the mounted state where the cartridge 63 is mounted on the disc rotation drive mechanism 66 and recording / reproducing is possible. It is configured to move up and down. Reference numeral 68 denotes a lid provided on the opening 62, which is opened / closed in conjunction with the operation of the eject operation knob.

The operation of taking out and inserting the cartridge with the above-mentioned structure will be described. First, FIG. 22 (a)
In order to take out the cartridge 63 from the above state, the cartridge holder 64 is once raised by the eject operation,
After the position shown in FIG. 22B, the cartridge 63 is moved to the position shown in FIG. 22 by the urging force (not shown) for ejecting the cartridge.
The paper is further discharged from the position shown in (b).

Here, it is necessary to raise the cartridge holder 64 once so that the engagement state of the cartridge 63 with the disc rotation drive mechanism 66 is released to eliminate the obstacle of the disc rotation drive mechanism 66 with respect to the slide of the cartridge 63. This is because.

To mount the cartridge 63,
First, as shown in FIG. 22B, the lid 68 is opened, the cartridge 63 is inserted, and the cartridge holder 64 is lowered at the insertion completion position of the cartridge 63, so that the state of FIG. The mounting of 63 is completed.

[0011]

In the conventional example as described above, first, in the case of the first example shown in FIG. 21, the lid cabinet is opened and closed and the cartridge 57 is taken out. 51 side surfaces 51a, 51b
There is a problem that the operability is poor because the operation of grasping and opening the cartridge and the operation of inserting the finger to pinch the cartridge are required.

Further, in the case of the second example shown in FIG. 22, although the operability is improved as compared with the first example, the first example has the thickness of the entire cabinet (the main body 51 and the lid 5).
The size of 2) is T (the size on the disk rotation drive mechanism 54 in the cabinet is the MD cartridge 57 and the holder 5).
6), whereas the overall thickness of the cabinet is increased by the dimension S with which the cartridge holder 64 moves up and down, and the appearance of a thinner portable MD is expected. The current situation.

According to the present invention, the cartridge is slidably inserted into the side of the cabinet to be set, and the operability is good, and the cartridge is not inserted or removed when the cartridge is inserted or removed. The present invention has been made for the purpose of providing a recording / reproducing apparatus which is thinner in the unmounted state and the completely mounted state.

[0014]

The recording / reproducing apparatus of the present invention is a recording / reproducing device for a first cabinet having a recording / reproducing means and having an opening at the top, and a second cabinet for covering the opening of the first cabinet. In the connected state, when the cartridge is not attached or removed except when the cartridge is inserted or removed, and when the cartridge is completely attached, the second cabinet is at least partially depressed within the thickness range of the first cabinet. When the cartridge is taken in and out, the second cabinet is connected so as to move in the thickness direction of the first cabinet, and the cartridge insertion port is opened in this state.

According to the present invention, a part of the second cabinet is sunk into the first cabinet, so that the cartridge is in the non-mounted state and the completely mounted state other than when the cartridge is inserted and taken out. The thickness can be made thinner than before.

Further, by devising the shape of the reference pin for positioning the seating of the inserted cartridge provided in the first cabinet, the first biasing means is stable even if the biasing force of the first biasing means is not so large. Realizes seating performance.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A recording / reproducing apparatus according to a first aspect of the present invention is a recording / reproducing apparatus constructed so that a cartridge is set by slidingly inserting the cartridge through an insertion opening provided on a side surface of a cabinet.
In the reproducing apparatus, a first cabinet having recording / reproducing means for recording media stored in a cartridge,
A second cabinet movably connected to the first cabinet in a first position close to the first cabinet and a second position separated from the first cabinet;
First urging means for constantly urging the second cabinet in the direction of a first position approaching the first cabinet; and the first cabinet against the urging force of the urging means for the second cabinet. An opening means for moving the second cabinet from the position to the second position; and an insertion opening opened when the second cabinet separates from the first cabinet by the opening means, the insertion opening being the second cabinet by the opening means. The second urging for discharging the cartridge is configured to open so that the cartridge can be inserted only when the cartridge is released to the second position, and to urge the second cabinet in the direction to discharge the stored cartridge. Means provided, first
The cabinet is provided with a reference pin that engages with a guide hole formed on the back surface of the set cartridge, and the reference pin has a first attachment with which the lower side of the insertion port is disengaged from the cartridge. An inclined surface is formed at a position where the inner periphery of the guide hole of the cartridge urged by the urging means comes into contact, and the shape of the inclined surface is changed so that the force in the direction of pulling the cartridge by the first urging means is It is characterized in that it is set so as to be larger than the force in the direction of pushing up the cartridge in the discharging direction by the urging means of 2.

According to a second aspect of the present invention, there is provided the recording / reproducing apparatus according to the first aspect, wherein the reference pin is formed in a taper shape with a widened bottom, and the reference pin is formed with a rib on the back side as viewed from the insertion port. Characterize.

According to a third aspect of the present invention, there is provided the recording / reproducing apparatus according to the first and second aspects, wherein the shape of the inclined surface of the reference pin is the biasing force of the cartridge by the first biasing means.
The biasing force of the cartridge by the second biasing means is A, the friction coefficient determined by the material of the reference pin and the cartridge is k, and when the cartridge abuts the reference pin, the cartridge generated by the biasing force B is pulled in. Component force in the direction and component force in the direction of pressing the cartridge against the reference pin are b1 and b, respectively.
2 and the component forces in the direction of pushing up the cartridge in the ejection direction and the component forces in the direction of pushing the cartridge to the reference pin are a1 and a2, respectively, b1> a1 + k (a2
It is characterized in that the relationship of + b2) is established.

The embodiment of the present invention will be described below with reference to FIGS.
It will be described based on. 1 and 2 show an MD player equipped with a lid opening / closing device of the present invention. In this MD player, the movable cabinet 1 provided with the holder 6 only when the cartridge 7 is attached and detached has the upper opening 1 of the main body cabinet 2 as shown in FIGS. 1 (a) and 2 (a).
When the cartridge is not mounted and the cartridge is completely mounted (including recording / reproducing) except when the cartridge is inserted / removed, the protrusion amount moves upward from 0: d, and FIG. As shown in FIG. 2B, the movable cabinet 1 is moved into the main body cabinet 2 and is sunk, that is, the movable cabinet 1 is close to the cabinet 2 in the thickness direction.

As described above, when the movable cabinet 1 is submerged in the main body cabinet 2 and the cartridge 7 is mounted, the disc built in the cartridge 7 is rotated on the side of the main body cabinet 2. The disc is rotatably driven by being connected to the drive mechanism 4, and the optical pickup 5 is configured to access the disc. The thickness of the portable MD when the cartridge 7 is mounted is the same as that when the cartridge 7 is not mounted. It can be made thick and thin.

Next, a concrete mounting structure of the movable cabinet 1 to the main body cabinet 2 side and a concrete structure capable of improving the operability at the time of mounting / removing the cartridge 7 as compared with the conventional case will be described with reference to FIGS. explain.

FIG. 3 is an exploded perspective view of the portable MD, and the movable cabinet 1 and the holder 6 are assembled as shown in FIG. The support shaft 1 is provided on the right side surface 6a in the vicinity of the insertion opening 6c of the holder 6 on both side surfaces 6a and 6b of the holder 6.
1 is planted, and a screw hole 13 into which a screw 12a is screwed is formed on the left side surface 6b corresponding thereto. The insertion opening lid 14 that opens and closes the insertion opening 6c of the holder 6 is provided with support arms 14L and 14R on both left and right sides, and a through hole 15 is formed in an intermediate portion between the support arms 14L and 14R.

When the movable cabinet 1 is put on the holder 6 and the screws 12a, 12b, 12c are screwed into the holder 6 from the holes 1a, 1b, 1c of the movable cabinet 1, the through holes 15 of the support arm 14R of the insertion port cover 14 are inserted. The support shaft 11 of the holder 6 is inserted, and the tip of the support shaft 11 is further inserted into the hole 1d of the movable cabinet 1.

The screw 12a is a hole 1a of the movable cabinet 1.
Through the through hole 15 of the support arm 14L to the holder 6
The insertion port lid 14 is screwed into the screw hole 13 of the holder 6 and is rotatably supported by the holder 6 on both sides by the support shaft 11 and the screw 12a.

Holes 1b, 1 on the rear end side of the movable cabinet 1
When screwing the screws 12b and 12c into the screw hole 16 of the holder 6 from c, the boss portion 17 formed at the rear end of the holder 6 is inserted into the hole 18a formed at the base end portions of the link plates 18R and 18L. Through the insertion, screws 12b and 12c are screwed into a screw hole 16 provided in the center of the boss portion 17 so that the link plates 18R and 18L are rotatably supported so as not to fall off from the holder 6.

The engaging groove 19R formed at the right end of the U-shaped link angle 19 is formed on the support shaft 11 of the holder 6 at a position sandwiched between the inside of the movable cabinet 1 and the support arm 14R. Engaged. Link angle 19
The engaging groove 19L formed at the left end of the screw 12a is located at a position where it is sandwiched between the support arm 14L and the holder 6.
Is engaged with.

The link plate 18 assembled in this way
As for R and 18L and the link angle 19, the engaging piece 19a formed by cutting and raising the link angle 19 is shown in FIG.
As shown in FIG. 5, an engaging piece 19b which is engaged with the groove portion 20 formed in the middle portion of the support arm 18R and is formed by cutting and raising the link angle 19 is similarly formed in the middle portion of the support arm 18L. 20 is engaged.

The chassis 21 shown in FIG. 5 and FIG.
The disk rotation drive mechanism 4, the optical pickup 5, and the printed wiring board 22 are assembled. Chassis 2
The right-hand bent piece 21R and the left-hand bent piece 21L of FIG.
a is formed, and the left bent piece 21L has a mounting groove 21a.
A notch 23 is further formed on the front side of the.

As shown in FIGS. 5, 7 and 8 (a), the movable cabinet 1 and the movable cabinet block assembled in FIG.
Located inside the right bent piece 21R and the left bent piece 21L of 1,
Rotating spindle 2 planted at the tips of link plates 18R, 18L
4 are assembled so as to engage with the mounting grooves 21a of the right bent piece 21R and the left bent piece 21L of the chassis 21, respectively.

As shown in FIGS. 5 and 6, a holder guide shaft 25R is planted at the right front end of the holder 6, and the holder guide shaft 2 is provided at the left front end of the holder 6.
5L is planted. This holder guide shaft 25R,
25L is engaged with a lifting drive unit 27 which is attached to the front surface of the chassis 21 by screws 12d and 12e together with the front cabinet 26 and the like.

As shown in FIG. 6, the lifting drive unit 27 has vertical guide holes 28R and 28L for defining the movement paths of the holder guide shafts 25R and 25L of the holder 6 and a lever shaft insertion hole 29 formed in the central portion. Lift guide plate 30
And the long holes 32a and 32b through which the pins 31a and 31b are inserted.
And a slide plate 33 that is slidably stacked on the elevating guide plate 30. Pin 32
The a and 32b are press-fitted into the elevating guide plate 30.

A tension coil spring 34 is interposed between the elevating guide plate 30 and the slide plate 33, and the slide plate 33 is biased to the left side (direction of arrow A) as shown in FIG.

The operation lever 33a formed by bending at the center of the slide plate 33 penetrates the lever shaft insertion hole 29 of the elevating guide plate 30, and as shown in FIGS. 1, 8 and 9, the front cabinet 26. It is engaged with an open operation button 26a slidably attached to the.

As shown in FIG. 6, through holes 33R, 33L are formed at both ends of the slide plate 33, through which the holder guide shafts 25R, 25L engaging with the vertical guide holes 28R, 28L of the elevating guide plate 30 are inserted. The inclined side 35 is formed in a part of the through holes 33R and 33L.

Further, the slide plate 33 has a lifting guide plate 3
Slots 32c and 32d, through which bent pieces 35a and 35b formed by bending from 0 to the slide plate 33 side, are formed in parallel with the slots 32a and 32b. Between the penetrating bent pieces 35a, 35b and the holder guide shafts 25R, 25L, the center of the torsion coil spring 36 is inserted into the pins 31a, 31b.
a and 36b are interposed as shown in FIG.

Further, the pin 31c press-fitted into the elevating guide plate 30 through the elongated hole 32d of the slide plate 33,
A tip 37a is biased upward by a torsion coil spring 36c, and is attached to a detection lever 37 that abuts against the loaded cartridge 7 and rotates the tip downward against the bias of the torsion coil spring 36c.

As shown in FIG. 7, both side surfaces C and D except the front surface B to which the lifting drive unit 27 is attached are attached to the assembly in which the lifting drive unit 27 is assembled as described above.
And U-shaped intermediate cabinet 38 to cover the rear E
Is attached. Inside the both ends of the intermediate cabinet 38, there are formed recesses 38a, 38b for restricting the position of the link plates 18R, 18L engaged with the mounting grooves 21a of the chassis 21 so that the rotation support shafts 24 do not move in the direction of removal. Has been done. As shown in FIGS. 5, 7, and 8, the link angle 19 is provided inside the back surface of the intermediate cabinet 38.
Protrusions 38c and 38d that engage with the cutouts 19c and 19d formed at the corners of the are formed. Further, at a position on the inner side of the left side surface 38L of the intermediate cabinet 38 and closer to the front than the concave portion 38b, as shown in FIG.
A protrusion 38e is formed which passes through the notch 23 formed in the left bent piece 21L and whose tip engages with the tip of the support arm 14L of the insertion port lid 14.

The right end 38 of this intermediate cabinet 38
f is engaged with and locked by a protrusion 26b projecting from the right rear surface of the front cabinet 26, and a left end 38g of the intermediate cabinet 38 is fixed to a hole 30a of the elevating guide plate 30 with a screw 12f.

The back surface of the intermediate cabinet 38 is a screw 12.
The link angle 19 and the bottom lid 39 are fastened together and fixed to the chassis 21 at g and 12h. 8 (a) and 9 (a)
Indicates the assembled state. In this state, the movable cabinet 1 and the holder 6 are urged by the torsion coil springs 36a and 36b to a lowered position ((b) in FIG. 1) close to the chassis 21 as shown in FIG. Also,
Between the chassis 21 and the support arm 14R of the insertion port lid 14, the center is the support shaft 11 of the holder 6 as shown in FIG.
The torsion coil spring 40 inserted in the
The insertion port lid 14 is biased to the closed position by a torsion coil spring 40.

In the state before loading the cartridge 7,
The detection lever 37 is biased by the torsion coil spring 36c and is in the position shown in FIG. FIG. 13A shows a schematic view when this state is viewed from the back surface (direction of arrow FF ′ in FIG. 6). In FIG. 13, the slide plate 33 on the front side is hatched so that the lift guide plate 30 and the slide plate 33 can be easily distinguished.

When the cartridge 7 is loaded from this state shown in FIGS. 8 (a) and 9 (a), a lip-shaped opening contact having an inclined portion formed on the front cabinet 26 and the insertion port lid 14 is made. When the cartridge 7 is pressed against the portion G and pushed in as shown in FIG. 1A, the insertion port lid 14 is rotated from the closed position to the open position against the bias of the screw coil spring 40, and the support arm 14R of the insertion port lid 14 is rotated. , 14L abut the chassis 21 and lift the inlet side of the holder 6 upward as shown in FIG. 8 (b).

At this time, the link angle 19 has the cutout 1
9c, 19d and the protrusions 38c, 3 of the intermediate cabinet 38
The engaging portion with 8d is rotated about the first fulcrum H1. The rear portion of the holder 6 is supported by the mounting groove 21a of the chassis 21 via the link plates 18R and 18L, and the link angle 19 is rotated from FIG. 8A to FIG. The intermediate portions of the plates 18R and 18L are pushed upward by the engaging pieces 19a and 19b of the link angle 19, and the engaging portions between the rotation support shaft 24 of the link plates 18R and 18L and the mounting groove 21a of the chassis 21 are moved to the second position. The link plates 18R and 18L rotate about the fulcrum H2, and the holder 6 rises in parallel to the chassis 21 as the insertion port lid 14 rotates from the closed position to the open position. The holder 6 is lifted up against the bias of the torsion coil springs 36a and 36b.

When the cartridge 7 is pushed into the holder 6 against the spring portion 6d formed by cutting and raising on the back surface of the holder 6, the upper edge of the front cabinet 26 is disengaged from the cartridge 7, and the cartridge 7 is removed. The force of opening the insertion port lid 14 by 7 is released, the insertion port lid 14 is rotated to the closed position by the bias of the screw coil spring 40, and the holder 6 loaded with the cartridge 7 is attached with the screw coil springs 36a and 36b. Figure 1
It changes to the state shown in 2. In this state, the disc built in the cartridge 7 is connected to the disc rotation drive mechanism 4, and the optical pickup 5 can access the disc.

In the state shown in FIG. 12, the tip of the detection lever 37 comes into contact with the loaded cartridge 7 and rotates as shown in FIG. 13B against the bias of the torsion coil spring 36c.

An engaging projection 37b is formed in the middle of the detection lever 37 by bending, and the engaging projection 37b is formed.
Is inserted into the lever insertion hole 29 of the elevating guide plate 30 through the central opening 33b of the slide plate 33, and the detection lever 37 is rotated as shown in FIG. Step part 3 formed in part
The slide plate 33, which is disengaged from 3c and urged by the tension coil spring 34, slides from the state shown in FIG. 13 (a) by a distance J in the direction of arrow A as shown in FIG. 13 (b). To do.

To remove the loaded cartridge 7, the cartridge 7 is automatically ejected by simply operating the open operation button 26a of the front cabinet 26 in the direction opposite to the arrow A direction. 1
It does not require a troublesome operation such as grasping and pulling up both sides of the.

When the open operation button 26a is operated in the direction opposite to the arrow A direction in the state shown in FIG. 13 (b), the tension coil spring 34 urges the open operation button 26a further through the state shown in FIG. 13 (a). When operated,
The holder guide shafts 25R and 25L of the holder 6 move in the direction opposite to the arrow A direction through the through hole 33 of the slide plate 33.
As shown in FIG. 11, the inclined sides 35 of the R and 33L push the lift guide plate 30 up and down along the upper and lower guide holes 28R and 28L.

The holder 6 has the torsion coil springs 36a, 3a.
The support arm 14 of the insertion opening lid 14 is pushed up by the inclined side 35 of the slide plate 33 against the bias of the 6b.
As shown in FIG. 8B, the tip of L is the middle cabinet 3
When the insertion opening lid 14 is rotated in the opening direction against the bias of the torsion coil spring 40 by engaging with the protrusion 38e of No. 8, the cartridge 7 is no longer in contact with the back surface of the front cabinet 26. Is automatically discharged from the holder 6 to the state shown in FIG. 1A by the spring portion 6d of the holder 6.

Further, in this embodiment, even if the user tries to insert another cartridge into the holder 6 even though the cartridge 7 is loaded,
It is configured to not accept this operation.

Specifically, in the state before the cartridge 7 is loaded, the holder guide shafts 25R and 25L of the holder 6 are provided.
Is the upper and lower guide holes 28R, 28 as shown in FIG.
In a state where it can be raised along L, the holder 6 rises in parallel with the insertion of the cartridge 7 and the insertion port lid 14
1 has been opened, but in the loaded state of the cartridge 7, as shown in FIG.
As shown in 3 (b), the detection lever 37 and the slide plate 33
The stopper 33d formed in a part of the through holes 33R and 33L of the slide plate 33 is disengaged from the stepped portion 33c.
However, the holder guide shafts 25R, 25L collide with the stopper 33d of the slide plate 33 and the movement thereof is prohibited even if the holder guide shafts 25R, 25L project into the same path as the upper and lower guide holes 28R, 28L of the lift guide plate 30 and another cartridge is inserted. Therefore, the insertion opening lid 14 is not opened, and it is possible to prevent a situation in which another cartridge is erroneously and redundantly loaded.

Whether or not the cartridge 7 is loaded can be determined by checking the position of the open operation button 26a of the front cabinet 26. Specifically, FIG.
9A shows the state before the cartridge 7 is loaded, and the loaded state of the cartridge 7 is shown in FIG. 9B. When the cartridge 7 is loaded, the slide plate 33 slides a distance J with respect to the elevating guide plate 30 as shown in FIG. 13, and the position of the open operation button 26a connected to the operation lever 33a of the slide plate 33 is also the same. Sliding by distance J, this distance J
By sliding, the indicator 41, which was hidden on the lower surface of the open operation button 26a until then, appears, so that the loading state can be confirmed. As a specific example of the indicator 41, an example in which a part of the front cabinet 26 is colored with a color different from the surroundings can be given.

14 and 15 show link plates 18R, 18
L and the right side plate 42R, left side plate 42L of the link angle 19
6 shows the details of the X-shaped link 43 in which and are engaged with the engaging pieces 19a and 19b of the link angle 19.

Left and right symmetrical link plates 18R, 18L centered on the insertion opening 6c of the holder 6 and provided on both sides thereof.
Is made of a stainless steel plate having a thickness of 0.3 mm, and an upper side 43 and a lower side 44 as a spring portion are formed at the intersection of the link plates 18R and 18L by bending. The base side of the lower side 44 is connected to the link plates 18R and 18L, and the tip end thereof is separated from the link plates 18R and 18L to give appropriate elasticity.

FIGS. 15A and 15B are respectively shown in FIG.
1A, the movable cabinet 1 and the holder 6 are separated from the main body cabinet 2 side against the bias of the torsion coil springs 36a and 36b, and
As shown in (b), the movable cabinet 1 and the lower side 44 in a state where the holder 6 is close to the main body cabinet 2 side by the bias of the torsion coil springs 36a and 36b are shown.

As can be seen by comparing FIGS. 15 (a) and 15 (b), in the state shown in FIG. 15 (b), the tip of the lower side 44 is engaged with the engaging piece 19a and is moved downward by the distance SA. Is elastically deformed.

The elastic deformation of the lower side 44 effectively acts as follows in order to stably connect the movable cabinet 1 and the holder 6 to the main body cabinet 2 so that they can move in parallel.

At the tips of the right and left side plates 42R and 42L of the link angle 19 located on the side of the insertion opening 6c of the X-shaped link 43, the engaging grooves 19R and 19L are located on the holder 6 side.
And 12a to engage with the torsion coil springs 36a, 36
The movable cabinet 1 and the holder 6 are urged in the direction of approaching the main body cabinet 2 by b.

The rear end of the holder 6 located on the opposite side of the X-shaped link 43 from the insertion opening 6c is, as shown by the arrow U, due to the elastic deformation of the lower side 44 in the state shown in FIG. 15 (b). A force acts in the direction of urging the.

Therefore, the front and rear of the movable cabinet 1 and the holder 6 are biased toward the main body cabinet 2 by elastic deformation of the screw coil springs 36a and 36b and the lower sides 44 of the link plates 18R and 18L.
The movable cabinet 1 and the holder 6 are stably moved in parallel to the main body cabinet 2, and the rattling of the movable cabinet 1 and the holder 6 is eliminated in the state of FIG.

Further, as described above, the link plates 18R and 18L are
The lower side 44 formed integrally with the main body cabinet 2
Since a proper biasing force is obtained in the direction approaching the main body 2, the number of parts is greater than that in the case where the back end side of the holder 6 is biased in the direction approaching the main body cabinet 2 as a separate component from the link plates 18R and 18L. It is possible to reduce the number of steps and the number of assembly steps.

The disc rotation drive mechanism 4 and the optical pickup 5 of this embodiment correspond to the recording / reproducing means for the recording medium in the claims, and the main body cabinet 2 and the bottom lid 39, which constitutes the main body cabinet 2, The intermediate cabinet 38 corresponds to the first cabinet in the claims. The movable cabinet 1 corresponds to the second cabinet in the claims.

The torsion coil springs 36a, 36 of the embodiment
6b respond | corresponds to the 1st biasing means in a claim. The support arms 14L and 14R formed on the insertion lid 14 of the embodiment prevent the second cabinet from resisting the biasing force of the first biasing means in the first position direction of the second cabinet in the claims. It corresponds to the opening means for moving to the second position to open the lid.

In the above embodiment, the movable cabinet 1 as the second cabinet is closer to the main body cabinet 2 as the first cabinet.
Position (Fig. 1 (a)) and the separated second position (Fig. 1 (a)).
The insertion port lid 14 attached to the movable cabinet 1 opened the insertion port 6c of the holder 6 in the state of moving to (b)) and moved to the second position, but the insertion port lid 14 is not an essential requirement, It is also possible that a part of the main body cabinet 2 closes the insertion opening 6c of the holder 6 at the position of, and the insertion opening 6c of the holder 6 is opened by moving the movable cabinet 1 to the second position. .

In the above-described embodiment, the movable cabinet 1 as the second cabinet approaches the main body cabinet 2 as the first cabinet at the first position (see FIG. 1).
In the state where the movable cabinet 1 is moved to the second position (FIG. 1B) separated from (a)) and the main body cabinet 2 approaches the movable cabinet 1, the entire movable cabinet 1 is set inside the main body cabinet 2. Even when at least a part of the movable cabinet 1 is housed inside the main body cabinet 2, the cabinet in the non-mounted state and the completely mounted state of the cartridge other than when the cartridge is inserted / removed for inserting / removing the cartridge is compared to the conventional technique. It can be made thinner.

The seated state of the cartridge 7 will be described with reference to FIGS. The chassis 21 of the main body cabinet 2 of this embodiment has first and second reference pins corresponding to the first and second reference holes 70a and 70b formed on the back surface of the cartridge 7 shown in FIG. 71a and 72b are formed as shown in FIG.

As shown in FIG. 17 (a), the cartridge 7 is placed on the front cabinet 26 through the opened insertion opening and inserted into the holder 6, and further the spring portion 6d formed on the holder 6 is resisted. Cartridge 6 holder 6
17C, the upper edge of the front cabinet 26 and the cartridge 7 are disengaged from each other as shown in FIG. 17B, and as shown in FIG. 17C by the biasing force of the torsion coil springs 36a and 36b. The first of the cartridge 7
The second reference holes 70a and 70b are the first and second
The disk center 7o of the cartridge 7 is chucked on the turntable 72 by engaging with the reference pins 71a and 72b of.

As shown in FIG. 17, the cartridge 7
In the process of inserting, since the pushing force by the discharging spring portion 6d acts, the engagement between the upper edge of the front cabinet 26 and the cartridge 7 is released as shown in FIG. An unstable state occurs when the cartridge 7 is pulled onto the chassis 21 by the urging force of 36a and 36b.

Therefore, as an easy means for eliminating this instability, the biasing force of the torsion coil springs 36a, 36b can be eliminated by making it sufficiently larger than the pushing force by the spring portion 6d. However, in this case, when the open operation button 26a is operated to eject the cartridge 7, the operation force of the open operation button 26a becomes heavy and the operability deteriorates.

Therefore, in the embodiment shown in FIGS. 17 to 20 of the present invention, the unstable state is eliminated without deteriorating the operability of the open operation button 26a, and the stable loading performance of the cartridge 7 is achieved. Has been realized.

FIGS. 18A to 18C are shown in FIGS.
19C is an enlarged view of the main part of the first reference pin 71a according to the embodiment of the present invention, in which a rib 73 is formed on the rear surface side as seen from the insertion port side as shown in FIG. It is finished in various shapes.

In FIG. 20, as shown in FIG. 18B, the upper edge of the front cabinet 26 is disengaged from the cartridge 7, and the open end of the reference hole 70a of the cartridge 7 is a rib of the first reference pin 71a. It is in contact with 73.

At this time, the shape of the inclined surface where the rib 73 abuts is set as follows. The biasing force for pulling the cartridge 7 onto the chassis 21 by the biasing force of the torsion coil springs 36a, 36b is defined as a vector B, and the biasing force for ejecting the cartridge 7 by the spring portion 6d is defined as a vector A, and the first reference pin 71a.
The coefficient of friction determined by the material of and the material of the cartridge 7 is k,
When the cartridge 7 comes into contact with the first reference pin 71a, the component force in the direction of pulling in the cartridge 7 generated by the vector B is b1, and the component force in the direction of pressing the cartridge 7 against the first reference pin 71a is b2. And the component force in the direction of pushing up the cartridge 7 generated by the vector A in the ejecting direction is a
1. When the component force in the direction in which the cartridge 7 is pressed against the first reference pin 71a is a2, the relationship of b1> a1 + k (a2 + b2) is set.

With this setting, even when the pushing force of the spring portion 6d always acts on the cartridge 7 when the cartridge 7 is inserted, the cartridge 7 contacts the rib 73 of the first reference pin 71a. When this is done, the component force b1 overcomes the component force a1 and reliably moves to the chassis 21 side, so the torsion coil spring 36a,
A stable loading operation can be realized without increasing the biasing force of 36b so much.

Further, since it is not necessary to increase the biasing force of the torsion coil springs 36a and 36b, the operation force of the open operation button 26a when ejecting the cartridge 7 is light and the operability is good.

In the above embodiment, the cartridge 7 is an MD cartridge because it is an MD player. However, in addition to the optical disk cartridge, a magnetic disk cartridge or a tape cartridge in the case of a cassette tape player may be used.

[0077]

As described above, according to the present invention, in the recording / reproducing apparatus configured so that the cartridge is slidably inserted and set through the insertion opening provided on the side surface of the cabinet, the recording on the recording medium housed in the cartridge is performed. / A first cabinet having a regenerating means, and a second cabinet movably connected to the first cabinet in a first position close to the first cabinet and in a second position separated from the first cabinet so as to be movable. Urging means for constantly urging the second cabinet in the direction of the first position close to the first cabinet, and the second cabinet from the first position against the urging force of the urging means. Opening means for moving the second position in the direction of separation,
An insertion opening opened when the second cabinet is detached from the first cabinet by the opening means, and the second cabinet approaches the first cabinet against the urging force of the urging means only when the opening opening of the second cabinet is opened. Done first
The cartridge is moved in the direction to be detached from the position to the second position to attach and detach (that is, insert and remove) the cartridge, so that the operability of attaching and detaching the cartridge to and from the cabinet can be improved, and the cartridge is attached and detached. In the non-mounted state and the completely mounted state of the cartridge other than the case, the second cabinet is close to the first cabinet in the thickness direction, and the thickness of the cabinet is configured to be thin as a whole.
It is a very effective invention as a portable type recording / reproducing apparatus. Further, the second cabinet is provided with a second urging unit for ejecting the cartridge, which urges in the direction of ejecting the stored cartridge, and the first cabinet is
A reference pin that engages with a guide hole formed on the back surface of the set cartridge is provided, and the reference pin disengages the lower side of the insertion opening from the cartridge and is urged by the first urging means. An inclined surface is formed at a position where the inner periphery of the guide hole of the cartridge abutted, and the shape of the inclined surface is changed by the force of the first biasing means in the direction of pulling in the cartridge to the second biasing means. Since it is set to be larger than the force in the direction of pushing up the cartridge in the discharge direction by the cartridge, the operation at the time of loading the cartridge is stable, and the urging force of the first urging means does not have to be large. The operation force when ejecting is light and the operability is good.

[Brief description of drawings]

FIG. 1 is an external perspective view of an MD player according to an embodiment of a recording / reproducing apparatus of the present invention in a cartridge attachment / detachment state and other cartridge non-attachment states and attachment completion states.

FIG. 2 is a sectional view of the same embodiment.

FIG. 3 is an exploded perspective view of the same embodiment.

FIG. 4 is an exploded perspective view of a movable cabinet, a holder, and their surroundings according to the same embodiment.

FIG. 5 is a perspective view showing a state where the chassis is assembled to the assembly of the movable cabinet and the holder according to the same embodiment.

FIG. 6 is an exploded perspective view of the locking means of the holder according to the embodiment.

FIG. 7 is an exploded perspective view showing a state in which the front panel and the intermediate cabinet of the same embodiment are attached.

FIG. 8 is a side sectional view of the same embodiment.

FIG. 9 is a front view of a cartridge mounting / demounting state of the embodiment, and a non-mounting state and a mounting completion state of other cartridges.

FIG. 10 is a front cross-sectional view showing the locking means before insertion of the cartridge of the same embodiment.

FIG. 11 is a front sectional view showing an operating state of the open operation button after the cartridge is inserted in the embodiment.

FIG. 12 is a front cross-sectional view showing a state after inserting the cartridge according to the same embodiment.

FIG. 13 is an enlarged rear view of the main part of the locking means before and after inserting the cartridge according to the embodiment.

FIG. 14 is a perspective view of the link plate of the same embodiment.

FIG. 15 is an enlarged view of the X-shaped link before and after inserting the cartridge according to the same embodiment.

FIG. 16 is an external perspective view of the cartridge as viewed from the back side.

FIG. 17 is a cross-sectional view showing a process of loading a cartridge.

FIG. 18 is an enlarged view of a main part of FIG.

FIG. 19 is an enlarged perspective view of a first reference pin.

FIG. 20 is an enlarged view for explaining the shape of the inclined surface of the first reference pin.

FIG. 21 is an external perspective view and cross-sectional view of a conventional MD player.

FIG. 22 is a sectional view of another conventional example.

[Explanation of symbols]

1 Movable Cabinet [Second Cabinet] 1a, 1b Both Sides 1a, 1b, 1, 1d of Movable Cabinet 1 Holes in Movable Cabinet 1 Main Cabinet [First Cabinet] 3 Rotation Support 4 Disk Rotation Drive Mechanism 5 Optical Pickup 6 Holder 7 Cartridge 8 Open operation button 9 Lock claw 10 Top opening 11 of main body cabinet 2 Support shafts 12a, 12b, 12c, 12d, 12e, 12f, 1
2g, 12h Screw 13 Screw hole 14 Insertion port lid 14L, 14R Support arm 15 Through hole 16 Screw hole 17 Boss portion 18R, 18L Link plate 18a Hole 19 Link angle 19R, 19L Engaging groove 19a, 19b Engaging piece 19c, 19d Notch 20 groove 21 chassis 21a mounting groove 22 printed wiring board 23 notch 24 rotary support shaft 25R, 25L holder guide shaft 26 front cabinet 26a open operation button 26b protrusion 27 lift drive unit 28R, 28L vertical guide hole 29 lever shaft insertion hole 30 Lifting guide plate 30a Holes 31a, 31b, 31c Pins 32a, 32b, 32c, 32d Long hole 33 Slide plates 33R, 33L Through hole 33a Operating lever 34 Pulling coil spring 35 Inclined sides 35a, 35b Bending pieces 36a, 36b, 36c Torsional coil spring 37 Detection lever 37a Tip 38 Intermediate cabinet 38a, 38b Recess 38c, 38d Projection 38e Protrusion 38f Right tip 38g Left tip 39 Bottom lid 40 Screw recoil spring 41 Indicator 42R Link angle 19 right side plate 42L Link angle 19 left side plate 43 X type Link B Front C, D Side E Back 71a First reference pin 73 Rib

Claims (3)

(57) [Claims] 1. A recording / reproducing apparatus configured to set a cartridge by slidingly inserting the cartridge through an insertion opening provided on a side surface of the cabinet, comprising: a first cabinet having recording / reproducing means for a recording medium contained in the cartridge; A second cabinet movably connected to the first cabinet and a second position separated from the first cabinet in a thickness direction thereof, and a second position separated from the first cabinet; and the second cabinet as a first cabinet. First biasing means for constantly biasing toward the approaching first position, and the second cabinet is disengaged from the first position to the second position against the biasing force of the biasing means. And an insertion opening that opens when the second cabinet is disengaged from the first cabinet by the opening means. For example, the insertion port, the second by the opening means of the second cabinet
The second cabinet is provided with a second urging means for urging the cartridge to urge in a direction in which the stored cartridge is ejected. The first cabinet is provided with a reference pin that engages with a guide hole formed on the back surface of the set cartridge, and the reference pin disengages from the lower side of the insertion opening and the cartridge. An inclined surface is formed at a position where the inner periphery of the guide hole of the cartridge urged by the first urging means comes into contact, and the shape of the inclined surface is defined by a force in the direction of pulling in the cartridge by the first urging means. However, the recording / reproducing apparatus is set so as to be larger than the force in the direction of pushing up the cartridge in the discharging direction by the second urging means. 2. The recording / reproducing apparatus according to claim 1, wherein the reference pin is formed in a tapered shape with a widened skirt and a rib is formed on the back side of the reference pin when viewed from the insertion port. 3. The shape of the inclined surface of the reference pin is determined by the biasing force of the cartridge by the first biasing means being B, the biasing force of the cartridge by the second biasing means being A, and the material of the reference pin and the cartridge. The coefficient of friction is k, and the component force in the direction of pulling in the cartridge and the component force in the direction of pressing the cartridge against the reference pin when the cartridge contacts the reference pin are b1 and b2, The component force in the direction of pushing up the cartridge in the ejection direction and the component force in the direction of pushing the cartridge against the reference pin are respectively a1,
The recording / reproducing apparatus according to claim 1 or 2, wherein the relation of b1> a1 + k (a2 + b2) is established when a2 is set.