KR100251617B1 - Disk apparatus - Google Patents

Abstract

The present invention is not required to use a slide plate for the reciprocating motion of the cassette holder. The main configuration of the present invention is to guide the cassette holder with a plurality of inclined guides installed on a pair of side plates of the chassis so that the oblique reciprocating movement between the cassette insertion position and the cassette mounting position, and the cassette holder against the biasing means. It is configured to move directly by the eject lever.

Description

Disk unit

1 is a side view as seen from line A-A of FIG. 6 showing a chassis and a cassette holder of a floppy disk device according to one embodiment of the present invention;

2 is a perspective view showing the appearance of the entire floppy disk device of the present invention.

3 is a side view taken from line B-B of FIG. 6 showing an inclined rack and a damper of the present invention.

4 is a cross-sectional view taken along line C-C of FIG. 6 showing a cross section of the chassis of the present invention.

5 is an exploded perspective view of the entire floppy disk device of the present invention.

6 is a plan view showing a cassette holder and a chassis of the present invention.

7 is a plan view showing a trigger lever of the present invention.

8 is a perspective view showing an eject lever and an eject operation section of the present invention.

9 is a perspective view showing an eject operation state of the eject lever and the eject operation unit of the present invention.

* Explanation of symbols on the main parts of the drawings

1: disc cassette 4: chassis

4b: side plate of chassis 9: cassette holder

9b: side plate of cassette holder (side) 10: tension spring (loading means)

12: ejector lever 19: guide portion

20: Incline guide P1: cassette insertion position

P2: Cassette Loading Position

The present invention relates to, for example, a disk device that is optimal for application to a floppy disk device, and more particularly to a configuration for reciprocating a cassette holder.

As a conventional example of a floppy disk device, there is, for example, Japanese Patent Application Laid-Open No. 2-10094 filed by the applicant of the present invention.

Conventional floppy disk devices of this kind have a cross-sectional shape of " "Almost in cross-sectional shape inside the bottom plate and the pair of side plates of the shaping chassis" "A bottom plate and a pair of side plates of a slide plate forming a shape are overlapped and attached, and four inclined grooves provided in a pair of side plates of a slide plate are four inclined grooves provided on the pair of side plates of a cassette holder. At the same time, the two second guides on the pair of sides of the cassette holder are fitted to the two vertical guides on the pair of side plates of the slide plate. A trigger lever is provided to slide in the opposite direction to the cassette insertion direction by the spring for locking and to lock the slide plate at a position that slides in the cassette insertion direction. An eject button, which is an eject control section, is installed at the end, and a disk drive is mounted on the bottom plate of the chassis. Pins may motor is attached.

When the disc cassette is mounted, the disc cassette is horizontally inserted into the cassette holder which is horizontally doubled at the cassette insertion position, and the trigger lever is unlocked by the disc cassette.

The slide plate is then slid in the direction opposite to the cassette insertion direction by the double acting spring. The four inclined guides guide the four first guided parts downward, and the two vertical guides guide the two second guided parts vertically so that the cassette holder is perpendicular to the cassette mounting position. The disk cassette is mounted horizontally from the top to the spindle of the spindle motor disposed at the cassette device position.

Also, in this case, the floppy disk device is normally decelerated by a damper to lower the cassette holder's lowering speed by a damper so that the cassette holder is not shockedly lowered by a double acting spring so that the cassette holder can be safely operated at a low speed from the cassette insertion position to the cassette mounting position. Doing.

When ejecting the disc cassette, the eject button is pushed with a finger to slide the slide plate in the cassette insertion direction against the double acting spring, and the cassette is operated to rise vertically to the cassette insertion position by the reverse operation described above. The slide plate is locked by the trigger lever. In addition, after the operation of the cassette holder, the disc cassette is configured to automatically eject out of the cassette insertion opening of the front panel.

However, the conventional floppy disk device has almost a cross-sectional shape. Inside the bottom plate and the pair of side plates of the chassis, Since the slide plates forming a shape are superposed and attached, and the cassette holder is configured to reciprocate vertically by the slides of the slide plates, the number of parts is large and heavy, and assembly is complicated, cumbersome and expensive. Moreover, there existed a problem that the thickness and width of the whole floppy disk apparatus become large by the thickness of the slide plate.

The present invention has been made to solve the above problem, and an object of the present invention is to provide a disk device which eliminates the need for a slide plate.

Disc device of the present invention for achieving the above object is provided in the pair of side plates of the chassis and the plurality of guide guides provided on the pair of side of the cassette holder, the plurality of guide guides the cassette insertion position and the cassette mounting A plurality of inclined guides for guiding obliquely between the position, the biasing means for moving the cassette holder from the cassette insertion position to the cassette mounting position, and the cassette holder connected to the cassette holder to connect the cassette holder to the biasing means. An eject lever for direct oblique movement from said cassette mounting position to said cassette insertion position against said cassette, an inclined rack formed in said cassette holder so as to be inclined parallel to said inclined guide, and installed in said chassis and It is equipped with a rotary damper.

The disk apparatus of the present invention configured as described above guides the cassette holder with a plurality of inclined guides installed on a pair of side plates of the chassis so that the cassette holder is reciprocated obliquely between the cassette insertion position and the cassette mounting position, and the cassette holder is moved. Since it is configured to move directly by the eject lever against the biasing means, it is possible to eliminate the need for a slide plate which has been necessary in the past.

EXAMPLE

Hereinafter, an embodiment in which the present invention is applied to a floppy disk device will be described with reference to the drawings.

First, the outline of this floppy disk device will be described. As shown in Figs. 1A and 2B, the cassette holder 9 is used without the slide plate, and the cassette is guided according to the inclined guide 20 of the chassis 4. It is possible to reciprocate in the direction of arrows (c, d), which is an oblique direction, between the insertion position P1 and the cassette mounting position P2.

Next, as shown in FIG. 2, the eject operation part 13 which ejects and operates the cassette holder 9 is arrange | positioned freely in the direction of arrow (i) (j) of an up-down direction outside the front panel 6. As shown in FIG.

Next, as shown in (A) and (B) of FIG. 3, the damper 14 is driven to rotate by the inclined rack 31 integrally provided in the cassette holder 9.

Next, as shown in FIG. 4, the tightening processing parts 33 and 34 which were tightened and processed in the upper and lower two stages to the upper plate 4a of the chassis 4 are formed integrally.

Hereinafter, each part is demonstrated in order.

First, as shown in FIG. 5, in a disk cassette (hereinafter simply referred to as a cassette) 1, a floppy disk 2, which is a recording / reproducing disk, is freely rotated.

Next, as shown in Figs. 5 and 6, the floppy disk device is attached perpendicularly to the chassis 5 and the cover 5 covering the upper portion thereof, and the front end portions of the chassis 4 and the cover 5, respectively. The front panel comprises the case 7 of flat rectangular shape as shown in FIG. The front panel 6 is provided with a horizontal cassette insertion hole 8, and the case has a pair of right and left tension springs 10, a trigger lever 11, an eject lever 12, and an eject operation part, which are cassette means 9. 13, a damper 14, a spindle motor 15, and a head moving device 17 for moving the upper and lower pairs of magnetic heads 16 are assembled.

Next, as shown in FIG. 5, the chassis 4 is press-formed by sheet metal, and a pair of vertically bent vertically upwards at the left and right edges of the horizontal bottom plate 4a and its bottom plate 4a. By the side plates 4b of The back plate 4c is bent vertically upward at the rear edge of the bottom plate 4a.

Next, as shown in FIG. 5, the cover 5 is press-processed by sheet metal etc., and a pair of side boards bent perpendicularly to the lower side at the horizontal top plate 5a and the left and right edges of the ceiling plate 5a ( 5b), the cross-sectional shape is almost downward. And the cover 5 is fitted to the chassis 4 from above and stopped by screws, and the chassis 4 is formed by the top plate 5a and the side plates 5b. It is comprised as if covering the upper surface of () and the outer side of both side plates 4b.

Next, as shown in FIG. 5, the front panel 6 is formed of synthetic resin or the like, and the cassette insertion port 8 is formed horizontally along the center portion. As shown in FIG. 2, the front panel 6 is vertically fitted to the front ends of the chassis 4 and the cover 5, and is stopped by screws, and the case together with the chassis 4 and the cover 5 (7) is comprised.

Next, as shown in FIG. 5, the cassette holder 9 is press-formed by sheet metal, and a pair of horizontally waved waves 9a and a pair of vertical bends vertically bent at the lower left and right edges of the ceiling plate 9a. A flat and horizontal cassette insertion space 9d as shown in FIG. 4 is constituted by the side plate 9b and a pair of bottom plates 9c horizontally bent inward from the bottom edges of the pair of side plates 9b. Doing. In addition, between the front end portions (ends on the arrow b direction side) of the pair of bottom plates 9c are horizontally connected by the cassette insertion guide plate 9e.

And as shown in FIG. 5, the blood which is a total of four horizontal pins in two places of the front-back direction (arrow a, b direction) of the outer side of the pair of side plates 9b which are a pair of side surfaces of the cassette holder 9 respectively. The guide part 19 is attached. Incidentally, the inclined guides 20 which are four inclined grooves in total are provided in two positions in the front and rear directions of the pair of side plates 4b of the chassis 4 in parallel with each other.

As shown in FIG. 1, these inclined guides 20 are inclined in parallel to each other at a predetermined angle θ so as to be obliquely downward as they progress in the direction of the arrow a in the cassette insertion direction with respect to the horizontal reference line P. As shown in FIG. . And the upper end (20a) and the lower end (20b) of these inclined guide 20 is formed into a horizontal end together, the upper end of the upper end (20a) is cut off to the upper side of the side plate (4b) by the incision (20c) have.

As shown in FIG. 1, FIG. 4, and FIG. 6, the four guide parts 19 are inserted into the four inclined guides 20 at the incisions 20c thereof, so that they can slide and move. The cassette holder 9 is assembled in a state where the cassette holder 9 is horizontally installed between the pair of side plates 4b of the chassis 4. As shown in FIG. 1A, the cassette holder 9 is shown in FIG. 1B and the cassette insertion position P1 raised horizontally to the upper end 20a of the inclined guide 20 by the guided portion 19. As shown in FIG. The arrow (c) (d) which is inclined direction in accordance with the inclined guide 20 between the cassette mounting position (P2) lowered horizontally to the lower end (20b) of the inclined guide 20 by the guide portion 19 as described above The reciprocating motion is comprised freely in parallel to a direction.

Next, as shown in FIGS. 1, 5, and 6, the pair of right and left tension springs 10 constituting the biasing means includes a pair of side plates 4b of the chassis 4 and a top plate of the cassette holder 9. Each pair formed in both side ends of 9a, it hangs between four spring engaging parts 21a and 21b in total. The pair of tension springs 10 move the cassette holder 9 in the direction of the arrow d from the cassette insertion position P1 to the cassette mounting position P2.

Next, as shown in FIG. 5, FIG. 6, and FIG. 7, the trigger lever 11 is formed of synthetic resin or the like, and this trigger lever 11 is located behind the cassette holder 9 (arrow (a)). Rotation is attached freely in the direction of the arrow (e) (f) in the horizontal direction through the point pin 22 perpendicular to the bottom plate (4a) of the chassis 4 on one side of the (direction side). The trigger lever 11 is integrally formed with a vertical cassette abutting contact pin 11a and a horizontal lock arm 11b. The trigger lever is inserted by the torsion spring 23 inserted into the outer circumference of the branch pin 22, and both ends 23a and 23b abut the cassette contact pin 1a and the side plate 4b of one side of the chassis 4. (11) is rotated in the direction of arrow (e), and the lock arm 11b is comprised so that the said side plate 4b may contact. And the lock arm 11 is comprised so that the locking piece 9f bent perpendicularly | vertically to the lower side in the bottom plate 9c of the cassette holder 9 is carried out.

Next, as shown in FIG. 5, FIG. 6, and FIG. 8, the eject lever 12 is located at the upper end of the front end of the bottom plate 4A of the chassis 4 (end on the side of the arrow b direction). Rotation is attached freely in the direction of the arrow f (h) in the horizontal direction through the spot plate 24. Then, the connecting piece 9g formed perpendicularly to the lower part of the cassette insertion guide plate 9e of the cassette holder 9 is engaged with the connecting hole 12a formed at the tip of the eject lever 12.

Next, as shown in FIG. 2, FIG. 5, FIG. 6, FIG. 8, and FIG. 9, the ejection operation lever 25 has a front end portion (arrow) of one side plate 4b of the chassis 4. (b) Rotation is attached freely in the direction of arrow (i) (j) in the vertical direction through the point pin 26 on the outside of the end on the direction side. And the part which was bent horizontally at the upper end of the eject operation lever 25 is comprised in the eject operation part 13. As shown in FIG. In addition, the lower end 25a of the eject operating lever 25 is bent horizontally, and is inserted into the bottom plate 4a at the cutout portion 27 provided in the side plate 4b, and the connecting hole 25b formed at the lower end 25a. ), The connecting piece 12b bent vertically at the other end of the eject lever 12 is engaged. And as shown in FIG. 2, the eject operation lever 25 protrudes upward from the cutout part 5c provided in the top plate 5a of the cover 5, and the eject operation part 13 fronts outside the front panel 6, as shown in FIG. It is arrange | positioned freely to the arrow (i) and (j) direction which is an up-down direction in the upper-position position of the panel 6.

Next, as shown in FIG. 3, FIG. 5, and FIG. 6, the damper 14 is located at the bottom of the chassis 4 at one side of the rear side (the arrow (a) direction side) than the trigger lever 11. It is attached to the mounting base 28 on the board 4a by the stop screw 29. The damper 14 is configured of, for example, a rotary damper in which oil is sealed, and the pinion 30 is integrally provided at the tip of the horizontal rotating shaft 14a.

Incidentally, the inclined guide is provided on the vertical extension arm 9h which is integrally extended from the rear end of the side plate 4b of one side of the cassette holder 9 (the end on the side of the arrow (a) direction) in the direction of the arrow (a). An inclined rack 31 inclined in parallel with 20 is inclined upwardly. The inclined rack 31 is engaged with the inclined lower side of the pinion 30.

Next, as shown in FIG. 4D and FIG. 5, the bottom plate 4a of the chassis 4 is machined to be tightened in two steps toward the upper side of the bottom plate 4a at the lower position of the cassette holder 9. As shown in FIG. The upper and lower two-stage tightening parts 33 and 34 are integrally formed. Moreover, the opening 35 is provided in the substantially center part of the tightening process part 34 of an upper end. On the other hand, the spindle motor 15 is mounted at a substantially center portion on the upper surface 36a of the motor substrate 36, and the spindle motor 15 is mounted on the upper surface 36a of the motor substrate 36 around the spindle motor 15. A plurality of drive circuit components 37 constituting the drive circuit of the () is mounted. The motor substrate 36 is composed of a so-called COC substrate in which a wiring pattern layer is formed on the surface of a metal substrate through an insulating layer. In addition, the spindle motor 15 attaches the spindle 15b to the bearing 15a fixed to the motor substrate 36 as a rotating material, for example, of the turntable 15c for rotor use fixed to the spindle 15b. The magnet 15d is fixed to the inner side, and the turntable 15c is rotationally driven integrally with the spindle 15b by the coil 15e mounted on the upper surface 36a of the motor substrate 36.

Then, the outer circumferential portion 36b of the motor substrate 36 is fitted to the lower side of the bottom plate 4a by the tightening processing portion 33, and then screwed on the lower side by a plurality of stop screws 38 to stop the motor substrate ( 36 is attached on the same surface as the bottom plate 4a. The cover of the upper part of the drive circuit component 37 is also combined with the upper tightening part 34 at the upper end, and the spindle motor is disposed in the opening 35 so that the spindle 15b and the turntable 15c are tightened at the upper part. It protrudes on the upper side of (34). In addition, four cassette holders 39 are provided on the upper part of the tightening processing part 34 at the upper end.

Next, as shown in FIG. 5 and FIG. 6, the head moving apparatus 17 has a pair of magnetic heads 16, the upper and lower faces of the tip of the carriage 17a and the arm 17b as in the prior art. The carriage 17a is configured to be stepped in the direction of the arrows K and I by the lead screw 17d of the stepping motor 17c. The arm 17b is configured to move up and down together with the cassette holder 9.

Next, the operation of this floppy disk device will be described.

First, when the cassette is loaded, the cassette 1 is operated at the cassette insertion position P1 at the cassette insertion opening 8 of the front panel 6 shown in FIG. 2, as shown in FIG. 1A. It is inserted horizontally in the direction of an arrow a into the cassette insertion space 9d of the holder 9.

Then, immediately before the insertion of the cassette 1 is completed, as shown in FIG. 7A, the leading edge 1a of the cassette 1 abuts against the cassette contact pin 11a of the trigger lever 11. Push the cassette contact pin 11a in the direction of the arrow (a). Then, as shown in Fig. 7B, the trigger lever 11 is rotated in the direction of the arrow f relative to the torsion spring 23 about the point pin 22 so that the lock arm 11b is moved to the cassette holder. It is peeled off from the flock piece 9f of (9), and the lock at the cassette insertion position P1 of the cassette holder 9 is released.

Accordingly, the lock of the cassette holder 9 is released almost simultaneously with the insertion of the cassette 1, and as shown in FIG. 1B, the cassette holder 9 is connected by the pair of tension springs 10 to the arrow a. Direction is moved. At this time, since the four guide parts 19 are guided to the lower side inclined by the four orthogonal guides 20, the cassette holder 9 has an arrow (from the cassette insertion position P1 to the cassette mounting position P2). The diagonal is moved (falling) in the direction d).

At this time, as shown in FIG. 3B, the inclined rack 31 of the cassette holder 9 is lowered in parallel with the direction of the arrow d, so that the inclined rack 31 is the pinion 30 of the damper 14. ) Is rotated in the direction of arrow (n). Then, as the rotary shaft 14a of the damper 14 is rotated at a low speed, the descending speed of the cassette holder 9 is reduced by a large rotational resistance, and the cassette holder 9 is moved from the cassette insertion position P1 to the cassette mounting position ( Falls safely at low speed until P2).

At this time, the inclined rack 31 is damped by a stroke ΔS of an inclination sufficiently larger than the vertical movement distance s from the cassette insertion position P1 of the cassette holder 9 to the cassette mounting position P2. By rotating 14), the cassette holder 9 can be effectively decelerated using the small damper 14.

Then, when the cassette holder 9 is lowered to the cassette mounting position P2, the cassette 1 is mounted horizontally on the four cassette holders 39 as shown by the dashed-dotted line in FIG. Floppy disk 2 is chucked to spindle 15b and turntable 15c. At the same time, a pair of upper and lower magnetic heads 16 are in contact with the upper and lower surfaces of the floppy disk 2 to complete a series of cassette mounting operations.

Also, by lowering the cassette holder 9 to the cassette mounting position P2, as shown in FIG. 8, the eject lever 12 is rotated in the direction of the arrow g, and the eject operation lever 25 and the eject The operation unit 13 is moved in the direction of arrow i, which is the upper side.

Next, at the time of ejecting the cassette, as shown in FIGS. 2 and 9, the eject operating section 13 is pushed down in the direction of the finger (j) with a finger, and the eject lever 12 is pushed through the eject operating lever 25. Rotate in the direction of arrow (h).

By doing so, the cassette holder 9 is directly moved in the direction of the arrow b against the pair of tension springs 10 via the connecting piece 9g and the cassette insertion guide plate 9e. In this case, as shown in FIG. 1A, the cassette holder 9 has a cassette at the cassette mounting position P2 so that the four guided portions 19 are guided upwardly inclined by the four inclined guides 20. It is moved inclined parallel to the arrow (C) direction to the insertion position (P1). At this time, the upper and lower pairs of magnetic heads 16 are spaced up and down the cassette 1.

In this case, the inclined rack 31 rotates the pinion 30 of the damper 14 in the direction of the arrow m, and the rotation shaft 14a of the damper 14 is rotated in the direction of the arrow m. Since the rotational resistance is hardly generated (the one-way deceleration function of the damper 14), the cassette holder 9 is lightly raised from the cassette mounting position P2 to the cassette insertion position P1.

At the moment when the cassette holder 9 is raised to the cassette insertion position P1, as shown in FIG. 7, the trigger lever 11 is rotated in the direction of the arrow e by the torsion spring 23, The lock arm 11b is again engaged to the rear (arrow a-direction side) of the green piece 9f of the cassette holder 9, and this trigger lever 11 moves the cassette holder 9 to the cassette insertion position P1. Lock automatically.

Moreover, at this time, as shown in FIG. 7, the cassette contact pin 11a of the trigger lever 11 presses the leading edge 1a of the cassette 1 strongly in the direction of the arrow b. Therefore, as shown by the dashed-dotted lines in FIGS. 1 and 2, at the moment when the cassette 1 is raised to the cassette insertion position P1, the cassette 1 is placed in the cassette insertion space of the cassette holder 9 ( 9d) is automatically ejected in the direction of the arrow b, and the trailing edge (end edge on the side of the arrow b) 1b of the cassette 1 is connected to the front panel 6 shown in FIG. The cassette insertion port 8 is automatically pushed out in the direction of the arrow b to complete a series of cassette ejection operations.

At the time of ejecting the cassette, as shown by the dashed-dotted line in FIG. 2, the eject operation unit 13 disposed at the upper side position outside the front panel 6 is pushed down in the direction of the arrow j with a finger. A part of this cassette insertion port 8 is not blocked at all. Accordingly, when the eject operation unit 13 is pushed down with a finger, the rear edge 1b of the cassette 1 ejected to be pushed out of the cassette insertion opening 8 in the direction of the arrow b with a slight time difference is applied to the finger. No bumps or discomforts occur.

Next, this floppy disk device has a cross-sectional shape, which is conventionally required for reciprocating the slide plate lease specification (i.e., the cassette holder 9 between the cassette insertion position P1 and the cassette mounting position P2). "A slide plate which is shaped and overlapped and attached to the inside of the chassis 4 is not required. Therefore, the entire thickness of the floppy disk device shown in FIG. ) And the width W can be reduced.

Instead of using the slide plate, as shown in FIGS. 8 and 9, the eject lever 12 is used to eject the cassette holder 9 directly in the direction of the arrow b. However, the eject lever By arbitrarily changing the arm ratio L1: L2 of (12), the eject stroke of the cassette holder 9 and the force required for ejecting can be set freely.

In addition, as shown in FIG. 4, the upper and lower two-stage tightening parts 33 and 34 are integrally formed on the bottom surface 4a of the chassis 1, so that the motor board 36 is bottom plated. It can be affixed on substantially the same plane as (4a), and the thickness H shown in FIG. 2 can be made smaller. In addition, since the rigidity of the bottom plate 4a can be increased, weight reduction can be achieved by using the chassis 4 having a thin plate thickness.

The upper tightening part 34 also serves as a cover for covering the upper side of the driving circuit component 37 of the motor board 36, so that other members fall, collide, and contact on the driving circuit component 37. Damage to the furnace part 37 can be prevented beforehand.

As mentioned above, although one Embodiment of this invention was described, this invention is not limited to said Example, A various effective change is possible based on the technical idea of this invention.

Incidentally, the present invention is not limited to the floppy disk device shown in the above embodiment, but can be applied to various disk devices using various disk cassettes.

Since the disk apparatus of this invention is comprised as mentioned above, it has the following effects.

The cassette holder is guided by a plurality of inclined guides installed on a pair of side plates of the chassis so that the cassette holder reciprocates obliquely between the cassette insertion position and the cassette mounting position so that the cassette holder is directly moved by the eject lever against the biasing means. Since it is possible to eliminate the need for a slide plate, which is conventionally required, it is possible to promote weight reduction by reducing the number of parts, and to improve productivity and reduce cost by reducing assembly labor. .

The disk device can be miniaturized by reducing the thickness and width of the entire disk device by the upper end of the thickness of the slide plate.

By arbitrarily changing the arm ratio of the eject lever, the eject stroke of the cassette holder and the force required for ejecting can be freely set.

Claims (1)

A disk apparatus having a cassette holder into which a disk cassette is inserted, the cassette holder reciprocating between a cassette insertion position and a cassette mounting position, comprising: a plurality of guide parts provided on a pair of side surfaces of the cassette holder, and a chassis; A plurality of inclined guides provided on one pair of side plates of the plurality of guided portions at an angle between the cassette insertion position and the cassette mounting position, and the cassette holder at the cassette insertion position; A biasing means for moving to a position, an ejector lever connected to the cassette holder for direct movement of the cassette holder at an angle from the cassette device position to the cassette insertion position against the biasing means, and the inclined guide; An inclined rack formed on the cassette holder to be inclined in parallel with the chassis; Value is the disk device, characterized in that with the damper which is rotated driven by the inclined rack