JP3119157B2 - Recording medium cartridge mounting device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for mounting a recording medium cartridge, and is applied to a magneto-optical disk apparatus, a floppy disk apparatus, a video tape recorder, and the like. The present invention relates to a recording medium cartridge mounting device configured to move in a direction, and then move downward to mount a recording medium cartridge at a predetermined position and move in the opposite direction to be detached.

2. Description of the Related Art A magneto-optical disk device, a floppy disk device, a video tape recorder and the like have a recording medium cartridge mounting device for mounting a cartridge containing a disk or a tape at a predetermined position. It is desirable that the recording medium cartridge mounting device be configured so that the cartridge can be securely mounted and the cartridge can be smoothly removed.

[0003]

2. Description of the Related Art FIGS. 21, 22A and 22B schematically show an example of a conventional cartridge mounting apparatus 10 described in Japanese Patent Publication No. 1-45148. The cartridge mounting device 10 generally includes a base 11, a cartridge holder 12, and an eject member 13.

The cartridge holder 12 includes pins 14, 1
5 and the substantially L-shaped guide grooves 16 and 17, the base 1
1, first move in the Y1 (horizontal) direction, then Z2
It is supported to move in the (down) direction. The eject member 13 is provided on the base 11 so as to be movable in the Y1 direction. The ejecting member 13 has the standing oblique cams 18 and 19. The cams 18 and 19 are shown in FIG.
As shown in FIG.

[0005] A tension coil spring 20 is obliquely hung between the cartridge holder 12 and the base 11.
Insert the cartridge 30 as shown in FIG.
When inserted into the cartridge holder 12 located at the detached position, the cartridge holder 12 is moved by being pushed by the cartridge 30. The pins 14 and 15 and the substantially L-shaped guide grooves 16 and 17 allow the cartridge holder 12
Moves in the Y1 direction first, and then moves in the Z2 direction by the force of the tension coil spring 20. The cartridge holder 12 reaches the mounting position shown in FIG. 23A together with the cartridge 30, and the cartridge 30 is mounted.

When the ejection member 13 is pushed in the state shown in FIG. 23A, the oblique cams 18, 19 push up the pins 14, 15 as shown schematically in FIG. ) Direction. Subsequently, the cartridge holder 12 holds the tension coil spring 2
The cartridge 30 is moved in the Y2 direction with a force of 0 to reach the insertion / removal position shown in FIG.

[0007]

As schematically shown in FIG. 24, the pins 14, 15 are arranged in the height direction indicated by Z1 and Z2.
Located at the same height. Here, for example, it is assumed that an arbitrary position P1 of the cartridge holder 12 is pushed up by the force F10. When the position P1 is pushed up, the pin 14 moves upward, and is dragged by the upward movement of the pin 14, so that the pin 15
A force F20 is applied in a direction connecting the pins 14 and 15.
However, the force F20 has no component that causes the pin 15 to move upward, and the pin 15 does not move upward. When the vertical portion of the guide groove 17 is inclined, the pin 15 moves so as to ascend the oblique groove. However, when the guide groove 17 is made in this way,
The cartridge holder 12 may move obliquely and the cartridge may hit the head or the like at the time of mounting. Therefore, it is not preferable to make the guide groove 17 oblique.

Therefore, the oblique cams 18 and 19 are
4 and 15 are pushed up. Here, if the timing at which the oblique cam 18 pushes up the pin 14 and the timing at which the oblique cam 19 pushes up the pin 15 deviate, the pin on which the push-up is delayed is caught in the guide groove, and the cartridge holder 12 rises. It will not be performed smoothly. For this reason, strictness of dimensional control for accurately determining the positions of the oblique cams 18 and 19 and the pins 14 and 15 is required, and therefore, the manufacture is difficult.

Further, the ejecting member 13 has a configuration in which the cams 18 and 19 are provided on both sides, respectively, and it is difficult to reduce the size. Therefore, an object of the present invention is to provide a recording medium cartridge mounting device that solves the above-mentioned problems.

[0010]

According to a first aspect of the present invention, there is provided a cartridge holder having, on a side surface side, an insertion port side pin close to an insertion port and a back side rear pin, and a recording medium cartridge inserted therein. A guide groove for an insertion-side pin for guiding the insertion-side pin, and a guide groove for a rear-side pin for guiding the rear-side pin. The cartridge holder is provided with the insertion-side pin and the rear-side pin. Are inserted into the guide groove for the insertion port side pin and the guide groove for the back side pin, respectively, so that the insertion / removal position and the recording position when the recording medium cartridge is inserted and when the recording medium cartridge is withdrawn. A frame for movably supporting the recording medium cartridge in a vertical direction between the mounting position where the medium cartridge is mounted, and the cartridge holder positioned at the mounting position is inserted and inserted.
An ejecting member that pushes up the cartridge holder with respect to the frame when moving the cartridge holder to the detached position, and when the recording medium cartridge is inserted into the cartridge holder, the cartridge holder moves together with the recording medium cartridge. The recording medium cartridge located at the mounting position reaches the insertion / removal position by moving the cartridge holder in the reverse direction by the operation of the ejecting member. In the medium cartridge mounting device, the cartridge holder is in contact with the insertion port side pin.
Make sure that the rear pin is lower than the insertion pin.
And connect the insertion port side pin and the back side pin
The straight line is inclined with respect to the insertion of the recording medium cartridge.
And the frame is provided with a guide groove for the insertion port side pin.
And the guide groove for the rear pin, and the insertion port pin and the rear pin
Guide groove for the rear pin corresponds to the
A configuration disposed lower than emissions guiding groove position, said Lee
When the eject member is operated, the cartridge
Press the screw so that the insertion pin moves upward.
It is a configuration to raise, by operating the above-mentioned eject member
When the insertion port side pin moves upward, the back side pin
A force in the direction along the above straight line acts on the
As a component force, in which an upward force is a configuration that it has a structure which acts on the rear side pin.

[0011]

1 to 6 show a magnetic disk cartridge mounting device 40 according to one embodiment of the present invention. 1, 2 and 3 are shown in an exploded state. First, the overall configuration and operation of the magnetic disk cartridge mounting device 40 will be described, and then the characteristic portions of the magnetic disk cartridge mounting device 40 will be described.

First, the overall configuration of the magnetic disk cartridge mounting device 40 will be described. 1 to 6
As shown in FIG.
Is a device for mounting a 3.5-inch magnetic disk cartridge 41, and generally includes a frame 42, a cartridge holder 43, an eject member 44, and an upper cover 45.
And a lower cover 46.

As shown in FIG. 1 and FIG.
Generally comprises a bottom plate portion 42a and side plate portions 42b, 42 on both sides.
c and a rising plate 42d at the back. As shown in FIGS. 6 and 7, a flat motor 50 and a turntable 5 rotated by the motor 50 are provided on the frame 42.
1 and a head carriage 52 are attached. The head carriage 52 has a lower head 53 and an upper head 54, and is moved in the Y1 and Y2 directions by a motor 55.

As shown in FIGS. 1, 4 and 6, the cartridge holder 43 generally includes a top plate 43a, both side plates 43b and 43c, and a bottom plate 43 near the side plate 43b.
d, a bottom plate portion 43e near the side plate portion 43c, and a back plate portion 43 near the side plate portions 43c and 43b on both sides of the back portion.
g, and an insertion port 43f into which the magnetic disk cartridge 41 is inserted. The cartridge holder 43 holds the inserted magnetic disk cartridge 41. A shutter opening lever 56 and a spring 57 are incorporated in the cartridge holder 43.

On the side plate portion 43b of the cartridge holder 43, an insertion port side pin 43g is provided on the side close to the insertion port 43f.
On the back side, a back side pin 43h is implanted. As shown in FIG. 6, an insertion port side pin 43i and a rear side pin 43j are also implanted on the opposite side plate portion 43c.

The frame 42 has a substantially L-shaped insertion port pin guide groove 42g for guiding the insertion port pin 43g, and a substantially L-shaped inner groove for guiding the rear pin 43h. And a side pin guide groove 42h. A substantially L-shaped insertion port pin guide groove 42i for guiding the insertion port pin 43i is provided on the opposite side plate portion 42c.
j, which has a substantially L-shaped rear pin guide groove 42j.

The cartridge holder 43 has the insertion-side pin 43g in the insertion-side pin guide groove 42g and the rear-side pin 43g.
h into the guide pin groove 42h for the rear pin, the insertion pin 43i into the guide groove 42i for the insertion pin, the rear pin 43j into the guide groove 42j for the rear pin, and the inner side of the frame 42. Movably supported in a substantially L-shape.

As shown in FIGS. 4 and 5, between the frame 42 and the cartridge holder 43, substantially L-shaped torsion coil springs 60 and 61 are provided. The ejecting member 44 includes arm portions 44a and 44b on both sides, a connecting portion 44c connecting the arms 44a and 44b, and a button 44d fixed to the connecting portion 44c, and has a substantially J-shaped plate shape.
It can move in any direction. The eject member 44 includes the spring 6
2 moves in the Y2 direction. As shown in FIG. 7, the length l1 of the arm 44b is shorter than the length l2 of the arm 44a. Utilizing this, the tip of the arm 44b is moved to Y
The space U in the two directions is used, for example, for installing a printed circuit board.

As shown in FIG. 6, the ejection member 44
Is provided at a position slightly above the bottom plate portion 42 a of the frame 42 and at a position below the cartridge holder 43. Similarly, as shown in FIG. 6, the lower surface of the frame 42 is covered by a lower cover 46, and the upper surface of the frame 42 is covered by an upper cover 45.

Next, the general operation of the magnetic disk cartridge mounting device 40 having the above configuration will be described. Initially,
The magnetic disk cartridge mounting device 40 is in the state shown in FIG. 4, FIG. 5, and FIG. Cartridge holder 43
Is located at the insertion / removal position P1, and the eject member 44 is moved in the Y2 direction by the spring 62.
The button 63 protrudes forward from the frame 42.

When the magnetic disk cartridge 41 is inserted into the cartridge holder 43 in the Y1 direction, the shutter 41a of the magnetic disk cartridge 41 is opened by the shutter opening lever 56 as shown in FIG. Press the part 43m. As a result, the cartridge holder 43 is pushed and moved by the magnetic disk cartridge 41. Pins 43g-43
j and the guide grooves 42g to 42j, the cartridge holder 43 is firstly moved to the position (Y1
Direction movement end position, Z2 direction movement (downward movement) start position) P
2 and then move in the Z2 direction by the force of the substantially L-shaped torsion coil springs 60, 61. The cartridge holder 43, together with the magnetic disk cartridge 41,
At the mounting position P3 shown in FIG. 10, the magnetic disk cartridge 41 is mounted. The shutter opening lever 56 is locked by the rising piece 42a-1, and is held at the rotated position.

Subsequently, the magnetic disk 41b in the magnetic disk cartridge 41 is rotated by the turntable 51, and the head carriage 52 moves in the Y1 and Y2 directions to record and reproduce information. When the eject button 63 is pressed in the state shown in FIG.
4 pushes up the cartridge holder 43 and moves it in the Z1 direction to a position P2 shown in FIG. Subsequently, the cartridge holder 43 is moved in the Y2 direction by the force of the substantially L-shaped torsion coil springs 60 and 61 to reach the insertion / removal position P1 shown in FIG.
1 is removed. Thereafter, the magnetic disk cartridge 4
1 is pulled out of the cartridge holder 43.

Next, the characteristic portion of the magnetic disk cartridge mounting device 40 will be described. (1) Configuration around the substantially L-shaped torsion coil springs 60 and 61. As shown in FIG. 11, the torsion coil spring 60
It has a turn coil portion 60a and two arm portions 60b and 60c extending from the coil portion 60a. Arm 6
The opening angle α between 0b and the arm portion 60c is slightly larger than 90 degrees, and the torsion coil spring 60 has a substantially L shape.

The arm portion 60b has a hook portion 60b-1 on the distal end side, which is bent in an L-shape with respect to the arm portion 60b.
The tip side of the arm portion 60c is bent in a crank shape, and the contact portion 60c which is bent in an L shape with respect to the arm portion 60c.
1 and a hook portion 60c-2 bent in an L-shape with respect to the contact portion 60c-1.

The side plate portion 42b of the frame 42 has a cut and raised lug portion 42b-1 and a substantially L-shaped opening 42b-
2 are formed. The lug portion 42b-1 has a hole 42b-
3 are formed. The diameter d1 of the hole 42b-3 is sufficiently larger than the diameter d2 of the wire rod of the torsion coil spring 60.

In the side plate portion 43b of the cartridge holder 43, a hole 43b-1 is formed at a position facing the substantially L-shaped opening 42b-2. Torsion coil spring 60
As shown in FIG. 12A, the hook 60b-1 on the distal end side of the arm 60b is connected to the side plate 42 of the frame 42.
b, fits into the hole 43b-1 of the side plate portion 43b of the cartridge holder 43 through the opening 42b-2, and the hook portion 60c-2 on the distal end side of the arm portion 60c loosely fits into the hole 42b-3.
The contact portion 60c-1 is provided outside the side plate portion 42b of the frame 42 in a state in which the contact portion 60c-1 contacts the lug portion 42b-1.

Since the engagement of the hook portion 60c-2 with the hole 42b-3 is loose, the torsion coil spring 60 is within the predetermined range, but the hole 42b- of the hook portion 60c-2.
3 and arrows A1 and A2
In any direction.

Since the contact portion 60c-1 is in contact with the lug portion 42b-1, the torsion coil spring 60
Is restricted from moving in the Y1 direction and from being largely turned in the A2 direction. Another torsion coil spring 61 has the same shape as the above-mentioned torsion coil spring 60, and is provided between the frame 42 and the cartridge holder 43 as in the case of the above-mentioned torsion coil spring 60.

Next, the operation of the substantially L-shaped torsion coil spring 60 during the mounting operation of the magnetic disk cartridge will be described. FIG. 12A shows a state in which the cartridge holder 43 is located at the insertion / removal position P1, and FIG. 12B shows a Y1 direction movement end position (Z2 direction movement (downward movement) start position) P2. 12C, a state in the middle of the movement in the Z2 direction, FIG. 12D.
Indicates a state when the vehicle reaches the mounting position P3.

When the cartridge holder 43 is located at the insertion / removal position P1, as shown in FIG. 12A, the substantially L-shaped torsion coil spring 60
0c is horizontal and the arm 60b is vertical. The opening angle α1 between the arm portion 60b and the arm portion 60c is slightly smaller than 90 degrees, and the torsion coil spring 60 is slightly bent but substantially L-shaped. Is applied with a small force F20. The force arrow indicates the magnitude of the force.

When the magnetic disk cartridge 41 is inserted into the cartridge holder 43 in the Y1 direction and the cartridge holder 43 is pushed by the magnetic disk cartridge 41 and moves in the Y1 direction, the substantially L-shaped torsion coil spring 60 is moved as shown in FIG. As shown in FIG. 12 (B), the arm 60b slightly rotates in the direction A2, and the arm 60b curves in the direction Y1.
The opening angle decreases and becomes α2. As a result, the substantially L-shaped torsion coil spring 60 is
Is applied to F21. The force F21 is larger than the force F20 and becomes lower than the force F20, so that Y2 and Z
Turn in the direction between 2. The force F21 is a component F in the Y2 direction.
21-Y1 and a component force F21-Z2 in the Z2 direction. The characteristics of the substantially L-shaped torsion coil spring 60 are as follows.
The component force F21-Z2 in the Z2 direction is
Is determined to be a force sufficient to move the in the Z2 direction.

The substantially L-shaped torsion coil spring 6
0 is largely rotated in the A2 direction.
-1 is in contact with the lug 42b-1.
Limited. As a result, the force F21 surely faces downward, and a force effective to move the cartridge holder 43 in the Z2 direction is generated.

The force resisting the insertion of the magnetic disk cartridge 41 is not the force F21 itself, but the component force F in the Y2 direction.
21-Y2, the magnetic disk cartridge 41
Insertion is performed smoothly with a light load. When the cartridge holder 43 is pushed by the magnetic disk cartridge 41 and moves in the Y1 direction, the substantially L-shaped torsion coil spring 60 starts applying a force in the Z2 direction to the cartridge holder 43. When the cartridge holder 43 reaches the Y1 direction movement end position (Z2 direction movement (downward movement start) position) P2, the substantially L-shaped torsion coil spring 60 exerts a force in the Z2 direction acting on the cartridge holder 43 in F21−. Z
2 and the force F21-Z2 starts to smoothly move the cartridge holder 43 in the Z2 direction.

When the cartridge holder 43 has guide grooves 42g-
When the distal end side of the arm portion 60b moves in the Z2 direction along 42j, the opening angle of the substantially L-shaped torsion coil spring 60 increases as shown in FIG. 12 (C). It spreads to α3, and the above point 65
Around the center in the direction of arrow A1.

The substantially L-shaped torsion coil spring 60 is
The force applied to the cartridge holder 43 is F22. Although the spring force of the substantially L-shaped torsion coil spring 60 decreases as the opening angle increases, the direction of the force F22 approaches the direction of Z2 by rotating in the direction of the arrow A1, and the component force F22− in the Z2 direction. Z2 is the component force F21 described above.
Maintaining the same size as −Z2, the cartridge holder 43 continues to move the cartridge holder 43 smoothly in the Z2 direction.

FIG. 12D shows the state in which the cartridge holder 43 has reached the mounting position P3. The distal end side of the arm portion 60b further moves in the Z2 direction, whereby the substantially L-shaped torsion coil spring 60 expands its opening angle to α4, and further turns around the point 65 in the direction of arrow A1. Moved state.

A substantially L-shaped torsion coil spring 60 is
The force applied to the cartridge holder 43 is F23. Although the spring force of the substantially L-shaped torsion coil spring 60 decreases as the opening angle increases, the direction of the force F23 approaches the direction of Z2 by rotating in the direction of the arrow A1, and the component force F23− in the Z2 direction. Z2 is the component force F21 described above.
Maintaining substantially the same size as -Z2, the cartridge holder 43 is stably held at the mounting position P3.

As can be seen from the above description, when the substantially L-shaped torsion coil spring 60 rotates in the direction of arrow A1 in accordance with the movement of the cartridge holder 43, the spring force of the substantially L-shaped torsion coil spring 60 is reduced. , Effectively acting as a force to push the cartridge holder 43 in the Z2 direction. Therefore, as the substantially L-shaped torsion coil spring 60, a spring whose spring force is considerably weaker than that of the conventional one can be used, and the operation of moving the cartridge holder 43 to the mounting position can be compared with the conventional one. The speed is considerably low, and there is no fear of damaging the magnetic disk 41b, the heads 53, 54, etc. without providing a damper or the like. Also, since no damper or the like is provided, the magnetic disk cartridge mounting device 4
0 is cheaper.

A substantially L-shaped torsion coil spring 60, 6
Reference numeral 1 denotes a small amount of protrusion a from the side surface, so that the magnetic disk cartridge mounting device 40 can have a smaller width and a smaller size than the conventional device. At the time of eject operation, approximately L
The letter-shaped torsion coil spring 60 operates in the order of FIG. 12 (D) → FIG. 12 (C) → FIG. 12 (B) → FIG. 12 (A). The cartridge holder 43 has a force F23-Z2 and a force F2.
2- Move upward in the Z1 direction against Z2. Force F23-Z
2. Since the force F22-Z2 is weaker than the conventional force, the load received when the eject button 63 is pressed is not large,
The operation of pressing the eject button 63 is performed smoothly.

A of the substantially L-shaped torsion coil spring 60
In the rotation in two directions, the contact portion 60c-1 is the lug portion 42b-1.
Is limited in the state shown in FIG. Therefore, the force F21-Y2 for moving the cartridge holder 43 in the Y2 direction is efficiently generated.

The substantially L-shaped torsion coil spring 6
The same effect can be obtained by using a substantially L-shaped spring 60A obtained by bending the metal wire shown in FIG. (2) The insertion port side pin 43g of the cartridge holder 43,
The rear pin 43h and the substantially L-shaped insertion slot side pin guide groove 42g of the frame 42, the substantially L-shaped rear pin guide groove 42
Configuration around h.

FIG. 14 shows a state where the cartridge holder 43 is located at the mounting position P3. Back pin 4
3h is located at a position lower than the insertion port side pin 43g by the dimension s. The rear side pin guide groove 42h and the insertion port side pin guide groove 42g are arranged corresponding to the arrangement of the rear side pin 43h and the insertion port side pin 43g.

When the eject button 63 is pressed, the cartridge holder 43 is pushed up at the point O1 by the force F30. The point O1 is closer to the insertion side pin 43g than the rear side pin 43h.
, The insertion port side pin 43g moves in the Z1 direction along the insertion port side pin guide groove 42g. By moving the insertion port side pin 43g, the rear side pin 43g is moved.
A force F40 in the direction along the line 70 connecting the insertion port side pin 43g and the back side pin 43h acts on h.

Here, since the line 70 forms an angle β upward with respect to the horizontal line 71, the force F40 has a component force F40-Z1 in the Z1 direction. With this component force F40-Z1, the rear pin 43h moves along the rear pin guide groove 42h, and the cartridge holder 43 is moved to the insertion / removal position P.
Reaches one.

As can be seen from the above, by pushing up an arbitrary position of the cartridge holder 43, the cartridge holder 43 located at the mounting position P3 smoothly starts moving in the direction of the insertion / removal position P1. Therefore, there is no need to push up the rear side pin 43h and the insertion port side pin 43g at the same time, and it is not necessary to strictly manage the dimensions of parts, and accordingly, the magnetic disk cartridge mounting device 40 is easy to manufacture. (3) A configuration in which the cartridge holder 43 located at the mounting position P3 is moved in the Z1 direction.

FIG. 15A shows the cartridge holder 43.
1 is located at the insertion / removal position P1, FIG.
5 (C) shows a state when the cartridge holder 43 has reached the mounting position P3, and FIG. 15 (B) shows a state during mounting. FIG. 16A shows a state immediately after the eject button 63 is pressed, and FIG.

As shown in FIGS. 2, 6 and 15A, a guide hole 44 is formed in the arm 44a of the eject member 44.
e, 44f and a push-up piece 44g are formed. A guide hole 44h and a push-up piece 44i are formed in the arm 44b. The ejection member 44 is formed by cutting and raising the projections 42k and 4k on the bottom plate 42a of the frame 42.
2l, 42m, and guide holes 44e, 44
h, 44f are guided by guide pieces 42o, 42p, 42q formed by cutting and raising the bottom plate 42a of the frame 42, respectively, and are provided so as to be movable in the Y1, Y2 directions. The eject member 44 is moved in the Y2 direction by a spring 62 hung between the eject member 44 and the frame 42, hits the stopper pieces 42r and 42s, and the eject button 63 fixed to the connecting portion 44c is
It protrudes more in the Y2 direction.

As shown in FIG. 6, the ejection member 44
Is provided at a position slightly above the bottom plate portion 42 a of the frame 42 and at a position below the cartridge holder 43. The eject member 44 includes the convex pieces 42k, 42l,
Holding piece 4 for holding 42 m and the upper surface of eject member 44
2t and 42u restrict the displacement in the Z1 and Z2 directions.

The push-up pieces 44g and 44i are inclined so as to be displaced in the Z2 direction as they are displaced in the Y1 direction when viewed from the eject button 63 side. Push-up piece 4
4g and 44i are provided at the same position in the Y1 and Y2 directions. Similarly, as shown in FIG. 2, FIG. 6 and FIG. 15 (A), the cartridge holder 43 has a push-up piece 43d-1 on the bottom plate 43d and a push-up piece 4d on the bottom plate 43e.
3e-1 is formed.

The pushed pieces 43d-1 and 43e-1 are
As with the push-up pieces 44g and 44i, the insertion slot 43
When viewed from the f-side, it is inclined so as to be displaced in the Z2 direction as it is displaced in the Y1 direction. Pushed piece 43d-
1, 43e-1 are provided at the same position in the Y1 and Y2 directions. When the eject member 44 is located at a position where the eject member 44 is not operated and the cartridge holder 43 is located at the insertion / removal position P1, the pushed-up piece 43d-1 (43
e-1) is a push-up piece 4 as shown in FIG.
4g (44i) is located above and shifted in the Y2 direction.

The cartridge holder 43 is shown in FIG.
The state shown in FIG. 15 reaches the mounting position P3 shown in FIG. The pushed-up piece 43d-1 (43e-1) passes above the pushing-up piece 44g (44i) in the Y1 direction, then moves in the Z2 direction, and moves up the pushing-up piece 44g (44e).
It reaches the same height as i) and faces the push-up piece 44g (44i) on the Y1 side.

In the state shown in FIG. 15C, when the eject button 63 is pressed to release the magnetic disk cartridge, as shown in FIG.
(44i) hits the pushed-up piece 43d-1 (43e-1), pushes the pushed-up piece 43d-1 (43e-1), and as shown in FIG.
4i) is pushed up in the Z1 direction.

As a result, the cartridge holder 43
As shown in FIG. 16 (B), it is pushed up in the Z1 direction,
Thereafter, it moves in the Y2 direction to reach the insertion / removal position P1 shown in FIG. As you can see from the above description,
The eject member 44 does not have a portion that goes around the side surface of the cartridge holder 43. Therefore, the magnetic disk cartridge mounting device 40 can be configured with a reduced width dimension W2, as compared with the conventional configuration in which the ejecting member has a portion that goes around the side surface of the cartridge holder. (4) A fixing structure of the frame 42 and the lower cover 46.

As shown in FIG. 3, the lower cover 46 has support pieces 46a to 46d which are formed by folding inward at four places around the support pieces. The frame 42 is, as shown in FIG.
Four places around the bottom surface portion 42a are supported on support pieces 46a to 46d, and are fixed by screws 75 with screws.

As shown in FIG. 3, screw holes 46e are formed at a plurality of locations on both sides of the lower cover 46 by burring and tapping. As shown in the enlarged view of FIG. 17, the magnetic disk cartridge mounting device 40 is configured such that a screw 79 is screwed into a screw hole 46e on both sides of the lower cover 46 through a hole 81 of a frame mechanism 80 of the computer main body. It is fixed.

In FIG. 3, for convenience of illustration, the thickness t10 of the sheet metal of the frame 42 and the thickness t11 of the sheet metal of the upper cover 45 and the lower cover 46 are shown as the same thickness. However, actually, the thickness t10 is about 1 mm,
The thickness t11 is about half the thickness t10, about 0.5 mm
It is. For this reason, the lower cover 46 is easily bent.

Therefore, the dimensional deviation between the mechanical section 80 of the computer main unit and the magnetic disk cartridge mounting device 40 is absorbed solely by the bending of the lower cover 46, and the frame 42 is not distorted at all. Therefore, when the screw 79 is tightened to fix the magnetic disk cartridge mounting device 40 to the mechanical unit 80 of the computer device main body,
There is no possibility that the characteristics of the magnetic disk cartridge mounting device 40 will be adversely affected. (5) A fixing structure of the upper cover 45 and the lower cover 46.

As shown in FIGS. 3, 6, and 18, the upper cover 45 has slits 45a and 45b formed on the lower cover 46.
And the screws 85
Is screwed into a screw hole 45c of the upper cover 45 through a hole 46g of the lower cover 46 and fixed.

The portion of the frame 42 corresponding to the screw 85 is an opening 42v. Therefore, the tip of the screw 85 does not hit the frame 42, and the
2 can be prevented from being distorted. (6) Combination structure of upper cover 45 and lower cover 46.

As shown in FIG. 3, a cut-and-raised piece 46i is formed on the right side wall 46h of the lower cover 46. As shown in FIG. 19, the cut-and-raised piece 46i pushes the right side wall 45d of the upper cover 45, and the left side wall 45e of the upper cover 45 is pressed against the left side wall 46j of the lower cover 46. Therefore, the upper cover 45 and the lower cover 46 are electrically closed and have a good shielding effect.
In addition, they are combined without play in the X1 and X2 directions. (7) Structure for Preventing Erroneous Insertion of Magnetic Disk Cartridge 41 The erroneous insertion prevention member 90 shown in FIG. It is attached to. The erroneous insertion preventing member 90 has a receiving portion 90a at the tip.

When the magnetic disk cartridge 41 is inserted in the normal direction, the inclined portion 41c moves to the receiving portion 90a.
Is shifted in the X1 direction, and the magnetic disk cartridge 41
Are inserted as shown in FIG. When the magnetic disk cartridge 41 is inserted in a direction other than the normal direction, as shown in FIG.
The tip surface perpendicular to the insertion direction of the contact portion 90a corresponds to the receiving portion 90a. As a result, further insertion of the magnetic disk cartridge 41 is restricted at a position in the middle of insertion before hitting the lever 56, and erroneous insertion is prevented.

The present invention is not limited to a cartridge containing a magnetic disk, but can be applied to another disk, for example, a cartridge containing a magneto-optical disk and a cartridge containing a tape.

[0063]

As described above, according to the first aspect of the present invention, the cartridge holder includes the insertion port side pin and the back side pin.
The rear pin is lower than the insertion pin.
With a straight line connecting the insertion side pin and the back side pin.
It is configured to tilt with respect to the insertion of the recording medium cartridge.
And the frame has a guide groove for the insertion port side pin and a back side.
The guide groove for the pin can be arranged between the insertion side pin and the back side pin.
Correspondingly, the guide groove for the back side pin is
Lower position, and the eject section
The material is inserted into the cartridge holder when operated.
The mouth pin is pushed up so that it moves upward.
And the insertion port side pin is operated by the operation of the ejection member.
When the is moved upward, the force in the direction along the straight line
Acts on the back pin as a vertical component of this force.
Because an upward force is applied, any part of the cartridge holder near the insertion port is pushed up, so that it is moved above the insertion side pin and the back side pin is also inserted.
The mouth pin is pulled upward and moved upward, so that the eject operation can be performed. Also, there is no need to push up the insertion port side pin and the back side pin at the same time, and it is not necessary to strictly control the dimensions of the parts, and the device can be easily manufactured accordingly.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a magnetic disk cartridge mounting device according to an embodiment of the present invention.

FIG. 2 shows a frame, a cartridge holder,
FIG. 4 is an exploded perspective view showing an eject member taken out.

FIG. 3 is an exploded perspective view showing a frame, an upper cover, and a lower cover in FIG.

FIG. 4 is a plan view of the magnetic disk cartridge mounting device of FIG. 1;

FIG. 5 is a side view of the magnetic disk cartridge mounting device of FIG. 4;

FIG. 6 is an enlarged front view of the apparatus of FIG. 4 as viewed from a magnetic disk cartridge insertion slot side.

FIG. 7 is a plan view of FIG. 3 with a cartridge holder removed.

FIG. 8 is a diagram illustrating a state during the mounting operation of the magnetic disk cartridge.

FIG. 9 is a plan view showing a state where the magnetic disk cartridge is mounted.

FIG. 10 is a side view showing a state where the magnetic disk cartridge is mounted.

FIG. 11 is a perspective view of a substantially L-shaped torsion coil spring.

FIG. 12 is a diagram illustrating an operation of a substantially L-shaped torsion coil spring during a mounting operation.

FIG. 13 is a perspective view of a substantially L-shaped spring.

FIG. 14 is a diagram for explaining that an upward force is applied to a rear pin of the cartridge holder during a detachment operation.

FIG. 15 is a diagram illustrating the movement of the cartridge holder with respect to the ejection member during the mounting operation.

FIG. 16 is a diagram illustrating the upward movement of the cartridge holder due to the pushing of the eject member during the detaching operation.

FIG. 17 is a diagram showing a portion surrounded by a circle A in FIG. 6, showing screwing of the magnetic disk cartridge mounting device to the computer device main body.

FIG. 18 is a diagram showing a portion surrounded by a circle B in FIG. 6, showing screwing of the upper cover and the lower cover.

FIG. 19 is a diagram for explaining the fixing of the upper cover and the lower cover without play.

FIG. 20 is a view showing a mechanism for preventing a magnetic disk cartridge from being inserted in a wrong direction.

FIG. 21 is an exploded perspective view of a conventional example of a magnetic disk cartridge mounting device.

FIG. 22 shows the device of FIG. 21.

FIG. 23 is a diagram showing the operation of the device of FIG. 21.

24 is a diagram illustrating a problem at the time of a detachment operation of the device of FIG. 21.

[Explanation of symbols]

 Reference Signs List 40 Magnetic disk cartridge mounting device 41 Magnetic disk cartridge 42 Frame 42g Insertion port side pin guide groove 42h Back side pin guide groove 43 Cartridge holder 43d-1, 43e-1 Pushed-up piece 43g Insertion side pin 43h Backside pin 44 Ejecting member 44g, 44i Push-up piece 45 Upper cover 46 Lower cover 51 Turntable 52 Head carriage 53 Lower head 54 Upper head 60, 61 A substantially L-shaped torsion coil spring

Claims (1)

(57) [Claims] 1. An insertion port side pin near the insertion port on a side surface side.
And a back pin on the back side.
A cartridge holder to be inserted, a guide groove for an insertion-side pin for guiding the insertion-side pin,
And a guide groove for a back pin for guiding the back pin.
Insert the cartridge holder into the insertion port side pin and the back side pin.
The guide groove for the insertion side pin and the guide groove for the back side pin, respectively.
And the recording medium cartridge is inserted.
When the recording medium cartridge is pulled out
Insertion / removal position and the recording medium cartridge
The media cartridge vertically
And a cartridge holder movably supported on the cartridge holder and the cartridge holder located at the mounting position.
When moving the cartridge holder to the
And an ejecting member for pushing up the frame against the frame.
Wherein the recording medium cartridge is in the cartridge holder.
When inserted, the cartridge holder is
Moves with the cartridge to the mounting position, and
The cartridge holder is moved by the operation of the eject member.
By moving in the opposite direction,
The recording medium cartridge is in the insertion / removal position.
In the recording medium cartridge mounting device having the following structure,The cartridge holder holds the insertion port side pin and the back side pin.
The rear pin is lower than the insertion pin.
And a straight line connecting the insertion side pin and the back side pin.
Is inclined with respect to the insertion of the recording medium cartridge.
Yes, The above frame is , Insert the guide groove for the insertion port side pin
Between the insertion port side pin and the back side pin.
The guide groove for the back side pin is the guide groove for the insertion side pin.
It is a configuration arranged at a lower position, When the eject member is operated, the cartridge
Hold the cartridge holder so that the pin on the insertion port moves upward.
Configuration. By operating the eject member, the insertion port side pin is
When moving upward, the back pin will follow the straight line
Direction force acts, and as a vertical component of this force,
 A configuration in which an upward force acts on the back pin
Recording medium cartridge mounting device, characterized in that
Place.