JPH0640414B2 - Device for mounting disc cartridges - Google Patents

Description

TECHNICAL FIELD The present invention relates to an apparatus for mounting a magnetic disk cartridge in a recording / reproducing apparatus.

(Prior Art) A small floppy disk, in which a thin disk-shaped magnetic disk is housed in a flat synthetic resin cartridge, is inserted into a cartridge holder normally arranged in a recording / reproducing apparatus and is rotated on a motor shaft. The cartridge holder is configured to be horizontally lowered to a flat position including the table and the head, and the cartridge holder elevating means is described in Nikkei Electronics Magazine No. 321 (published by Nikkei McGraw-Hill Inc.).
As has been introduced on pages 47 and 248, a structure has been adopted in which the holder roller is caused to roll along a guide slope provided on the eject member by relatively moving the cartridge holder and the eject member in parallel. ing.

However, in such a structure, in order to ensure a smooth vertical movement of the cartridge holder, it is necessary to make the inclination of the guide slope gentle to some extent, which increases the operation stroke of the eject member or positions the holder horizontally. It has a problem that the mechanism becomes complicated.

(Object) The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a new disk cartridge mounting apparatus capable of accurately moving a cartridge holder up and down.

Another object of the present invention is to provide a disk cartridge mounting device which is easy to eject and has a simple structure.

(Structure) A mounting apparatus for a disc cartridge according to the present invention includes a cartridge holder that holds the disc cartridge and can move between an inserting / ejecting position and a recording / reproducing position when the disc cartridge is inserted, and a side surface of the cartridge holder. A first fulcrum which is provided at intervals and is rotatably pivotally attached to the apparatus main body, a second fulcrum pivotally rotatably attached to the disk cartridge, and the first and second fulcrums. Of two arm members having a third fulcrum different from each other and arranged in the same direction from the first fulcrum toward the second fulcrum, and the third fulcrum of the arm member. Auxiliary lever member for pivotally pivoting each member to integrally operate the arm member, and insertion / ejection position of the cartridge holder interlocking with insertion operation of the disk cartridge To a recording / reproducing position.

Therefore, the details of the present invention will be described below based on illustrated embodiments.

FIG. 1 shows a mounting mechanism of the disc cartridge with the cover removed, and reference numeral 1 in the figure indicates that the inside of the sheet metal is bent to form a storage portion for the disc cartridge 2. The cartridge holder is composed of the upper plate 1a and the U-shaped side plate 1b. A shutter opening / closing lever 3 is rotatably supported by a pin 3a on the upper plate 1a. The shutter opening / closing lever 3 has a shutter lever spring 10
It is urged by 2 to the position indicated by the chain double-dashed line in FIG. In this shutter opening / closing lever 3, a pin 3b planted at the tip thereof is inserted into an arc-shaped long hole 1c formed in the upper plate 1a so as to project into the cartridge holder 1, and this pin 3
By bringing b into contact with the front edge of the disc cartridge 2 which is inserted from the insertion opening 4a of the front bezel 4 in the direction of arrow 100 in FIG. 2A, the counterclockwise direction in FIG. The pin 3b is rotated and is engaged with one end of a slide shutter 2a (FIG. 4) for closing the head insertion hole provided in the front of the cartridge 2 so that the pin 3b is rotated by the rotation of the shutter opening / closing lever 3. The slide shutter 2a is opened by displacement in a direction perpendicular to the insertion direction of the disc cartridge 2. Fig. 2, Fig. 6 and Fig. 7 show the raising and lowering of the cartridge holder 1 arranged in the main body of the apparatus. Fig. 2 (a), Fig. 6 and Fig. 7 are side views, and Fig. 2 (b) is a plan view of Fig. 1, showing the mechanism. In FIG. 6 and FIG. 7, a substantially L-shaped die is formed. The arms 5 and 6 are rotatably supported by pins 8 and 9 serving as first fulcrums from a chassis 7 that constitutes the main body of the apparatus to side plates 7a that stand up on both sides of the apparatus. The tips of the first arms 5a and 6a extending in the substantially horizontal direction and having equal lengths have pins 5b and 6b as second fulcrums on the side plate 1b of the cartridge holder 1 which is biased downward by the spring 10. In addition, second arms 5 of equal length extending upward from the pivot points of these arms 5, 6 are connected.
c and 6c are connected by an auxiliary lever 11 having a length substantially equal to the distance between the pins 8 and 9 as the third fulcrum. As a result, the arms 5 and 6, the cartridge holder 1 and the auxiliary lever 11 form a parallel link, and the arms 5 and 6 rotate about the pins 8 and 9, whereby the cartridge holder 1 becomes parallel to the chassis 7. It goes up and down. A schematic diagram of this parallel link is shown in FIG. In addition, FIG.
The position where the disc cartridge 2 is inserted into and ejected from the cartridge holder 1 is shown. The inserted disc cartridge 2 actuates a trigger, which will be described later, to unlock the cartridge holder 1, and the arms 5 and 6 move in the direction of arrow 102 in the figure. Rotate around pins 8 and 9 to move the cartridge holder 1
Moves in the direction of arrow 103 in the figure to move the disk cartridge 2 to the recording / reproducing position. Figure 7 shows
It shows a state in which the disc cartridge 2 has moved to the recording / reproducing position.

In order to return the disc cartridge 2 from the recording / reproducing position to the insertion / ejection position, the eject button 12 is pushed in the direction of the arrow 104 in the figure, so that the arms 5 and 6 the arrow 10 in the figure.
2a, the cartridge holder 1 is rotated by the arrow 1 in the figure.
It moves in the direction of 03a and returns to FIG.

The third arm 5e provided below the arm 5 projects downward through the slit 7b provided in the chassis 7, receives the pressing of the eject button 12 described above, and receives parallel links on both sides of the cartridge holder 1. Are operated at the same time. A perspective view of the cartridge holder 1 is shown in FIG.

On the other hand, the trigger indicated by reference numeral 13 in the figure is for mounting the disc cartridge 2 and releasing the lock of the cartridge holder 1 to lower it to the recording / reproducing position. In this embodiment, the trigger 13 is It is arranged on the left rear side of the apparatus main body as viewed from above, but here it is collectively shown in FIG. 2 together with the lifting mechanism on the right side for better understanding of the drawing.

The trigger 13 is attached to the two pins 9 and 14 planted in the chassis side plate 7a so that the elongated holes 13c and 13c are fitted to the rear arm 6 so that the trigger 13 can run back and forth. A trigger return spring 15 that is stretched between the two is always biased so as to be positioned in the front. Then, at this position, the tip of the locking plate 13a which extends under the downward projection 6e to prevent the arm 6 from rotating and extends inwardly of the main body of the device is shown in FIG.
As shown in FIG. 5, the cartridge holder 1 rises inward again to form a contact piece 13b with the tip of the disk cartridge 2. In the present embodiment, the trigger means is constituted by the trigger 13, the arm 6 and the trigger return spring 15, but the trigger means may be any structure that moves the holder 1, and is not limited to the structure of this embodiment. Absent.

Reference numeral 16 in the drawing denotes a damper arranged between the chassis 7 and the cartridge holder 1, which is composed of a cylinder and a plunger. The viscosity of the lubricating oil interposed between these sliding surfaces causes the cartridge holder 1 to rapidly descend. Is configured to suppress.

Next, the mounting operation of the disc cartridge thus configured will be described.

In the state where the disc cartridge is not mounted, the trigger 13 is biased by the trigger return spring 15 and positioned in the front, and the locking portion 13a extending inward from the lower side of the trigger body is directed downward of the rear arm 6. The arm 6 is prevented from rotating in the clockwise direction in the figure by receiving the protrusion 6e (FIG. 2 (a)). For this reason, the front and rear arms 5 and 6 coupled by the auxiliary lever 11 maintain the counterclockwise rotating posture, and the cartridge holder 1 is inserted into the disc cartridge insertion position by the first arms 5a and 6a. Holds horizontally.

Next, under this state, when the disc cartridge 2 is inserted from the insertion opening 4a of the front bezel 4, the shutter opening / closing lever 3 of the holder upper plate 1a has the pin 3b protruding into the holder 1 of the cartridge 2a. When it is pushed by the front edge, it rotates counterclockwise in the figure, and the lateral displacement of the pin 3b at that time causes the slide shutter 2a of the disk cartridge 2 to slide to one side to open the head insertion opening.

When the disc cartridge 2 is inserted to this position, the leading edge of the disc cartridge 2 then presses the contact piece 13b protruding into the cartridge holder 1 to move the trigger 13 backward against the trigger return spring 15. Let Then, when the trigger 13 moves rearward in this way, the locking plate 1
The rear arm 6 that was in contact with the upper surface of 3a is locked by the locking plate 13
When a is retracted, the trigger 13 is pulled by the trigger return spring 15 having the trigger 13 as a fulcrum and pivots clockwise in the drawing (FIG. 3).
The cartridge holder 1 is lowered horizontally to the recording / reproducing position together with the front arm 5 which is rotated together via the auxiliary lever 11. At the time of this lowering, the damper 16 provided between the chassis 7 acts on the cartridge holder 1 so that the lowering is controlled gently and abrupt contact between the floppy disk and the head is prevented. Further, when this loading state is entered, the locking plate 13a of the trigger 13 is
Since the return is blocked by the front edge 6f of the rear arm 6 rotated clockwise, the disc cartridge 2 is maintained in its mounted state without any trouble.

When the eject button is pressed to remove the disk cartridge 2 after the required read / write operations are completed, the front arm 5 which receives the pressing action via the arm 5e pivots counterclockwise in the figure. Therefore, the rear arm 6 rotated in the same direction via the auxiliary lever 11 raises the cartridge holder 1 horizontally together with the front arm 5, and releases the lock of the trigger 13 at the end of the rotation.

As a result, the trigger 13 travels leftward in the drawing by the tension of the trigger return spring 15 that acts with the rear arm 6 as a fulcrum, and pushes the disc cartridge 2 that is in contact with the contact piece 13b outward, at the same time, The locking plate 13a is again positioned immediately below the downward projection 6e of the rear arm 6 to prevent the arm 6 from rotating, and the arm 6 is returned to the initial state.

The above is a description of one embodiment of the present invention. In this embodiment, the first fulcrums of the front and rear arms 5 and 6 constituting the parallel link mechanism are pivotally supported on the chassis 7 side, and the The tips of the horizontally extending first arms 5a and 6a are pivotally attached to the cartridge holder 1 so that the holder 1 is moved vertically up and down. Even if the holder 1 is pivotally supported and the tips of the first arms 5a and 6a are pivotally attached to the chassis 7, the holder 1 can be horizontally moved up and down in the same manner as described above. In the case of the above configuration, the second arms 5c and 6c of the arms 5 and 6 are made sufficiently long by utilizing the space in the thickness direction of the electrical equipment member installation chamber provided in the lower part of the apparatus main body, and the auxiliary lever 11 is Make the movement of the parallel link mechanism used more accurate Door can be.

As described above, according to the present invention, with the insertion of the disc cartridge, the cartridge holder that holds the disc cartridge and can move between the insertion / ejection position and the recording / reproducing position and the side surface of the cartridge holder are provided with a space. Different from the first fulcrum that is rotatably attached to the main body of the apparatus, the second fulcrum that is rotatably attached to the disk cartridge, and the first and second fulcrums. 2 having a third fulcrum and arranged in the same direction from the first fulcrum to the second fulcrum
A parallel link mechanism for raising and lowering the cartridge holder is configured by individual arm members and an auxiliary lever member that pivotally attaches each of the third fulcrums of the arm members to integrally operate the arm members, Since it is configured to have a trigger means for moving the cartridge holder from the insertion / ejection position to the recording / reproducing position in synchronism with the disk cartridge insertion operation, a slight rotation of the arm member is amplified so that the device body and the cartridge holder are substantially Sufficient relative vertical movement in the vertical direction can be imparted, and the operation stroke of the eject member acting on the arm member can be shortened to improve its operability. Further, since these link mechanisms can be constituted by a few parts which are substantially the front and rear arm members and the auxiliary lever member, and these can be molded by the members, a gap between the apparatus main body and the cartridge holder is formed. Can be made as small as possible to make the apparatus small, and at the same time, the apparatus can be made simpler.

[Brief description of drawings]

1 (a) and (b) are a plan view of the apparatus showing one embodiment of the present invention and a side view as seen from the side where the disc cartridge is inserted, and FIGS. 2 (a) and (b) are elevations of the cartridge holder in the same apparatus. FIG. 4 is a side view and a top view showing the mechanism, and FIG. 3 is a side view of a main part showing a state in which the cartridge holder is lowered.
FIG. 5 is a diagram showing an example of a disc cartridge loaded in the same apparatus, and FIG. 5 is an explanatory diagram of a link mechanism. Also,
6 and 7 are side views of the cartridge holder of the present invention, and FIG. 8 is a perspective view of the cartridge holder. 1 ... Cartridge holder 2 ... Disk cartridge 3 ... Shutter opening / closing lever 5,6 ... Arms 5a, 6a ... First arm 5c, 6c ... Second arm 11 ... Auxiliary lever, 13 ... Trigger 16 …… Damper

Claims (1)

[Claims] 1. A cartridge holder (1) which holds the disk cartridge and is movable between an insertion / ejection position and a recording / reproducing position when the disk cartridge is inserted, and a space is provided on a side surface of the cartridge holder (1). A first fulcrum (8, 9) that is rotatably attached to the main body of the apparatus and is rotatably attached to the cartridge holder (1). 6
b), the first fulcrum (8, 9) and the second fulcrum (5)
b, 6b) and a third fulcrum (5
d, 6d) and arranged so that the directions from the first fulcrum (8, 9) to the second fulcrum (5b, 6b) are the same. 6) and the third fulcrum (5d, 6) of the arm member (5, 6)
d) is pivotally attached to each of the arm members (5,
6) an integrated lever member (11) for integrally operating the cartridge holder (1), the arm member (5,
6), coupled with an auxiliary lever (11) and a link mechanism formed by the main body of the apparatus, locks the cartridge holder (1) at the disc cartridge insertion / ejection position, and interlocks with the disc cartridge insertion operation. An apparatus for mounting a disk cartridge, comprising: trigger means (13) for unlocking the cartridge holder and moving the cartridge holder (1) to the recording / reproducing position.