JPH0227427Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a floppy disk device, and more particularly to a floppy disk device configured to eject an inserted floppy disk by operating a clamping knob in a direction parallel to the disk surface. .

Prior Art Some conventional floppy disk devices use spring means to eject the floppy disk when the clamp lever is operated to return.
When the float disk is inserted for the first time, a sliding member dedicated to ejecting is slid backwards against the spring means to lock it, and when the disk is ejected, the sliding member releases the locking in conjunction with the returning movement of the clamp lever. The floppy disc was then slid back to the front and the floppy disk was ejected.

Problems to be Solved by the Invention However, since the eject mechanism provided in the conventional floppy disk device has a sliding member that slides in the front and back direction, it requires a relatively large space, and it is therefore difficult to reduce the size of the device. There are some issues that are said to be difficult. In addition, in the conventional device described above, the shaft rotates when the clamp lever is rotated, and a cam at the tip of the shaft moves a clamp member with a clamper to clamp the floppy disk. The clamp lever required a lot of force to operate, and the clamp lever was heavy and difficult to operate, especially when operated by a woman.

Therefore, an object of the present invention is to provide a floppy disk device that solves the above problems.

Means for Solving the Problems The present invention has a rotating lever 27 which has a contact portion 27d that comes into contact with the case 53 of the inserted floppy disk and rotates in the insertion direction as the floppy disk case 53 is inserted. , Move the rotating lever 27 to the floppy disc case 53.
A biasing member 28 that rotates and biases in the eject direction of the
and a locking member 2e that locks the rotary lever 27 rotated in the floppy disk insertion direction in its rotated position.
a clamp member 9 that rotatably supports a clamper 13 that clamps a floppy disk body 54 housed in a floppy disk case 53 and is displaced in a direction toward or away from the disk surface of the floppy disk body 54; an operating lever 15 that is rotatably provided in a direction parallel to the disk surface of the floppy disk body 54 so as to be able to move to a clamp position where it contacts the clamp member 9 or an eject position where it is spaced apart from the clamp member 9; When the operation lever 15 rotates to the eject position, the rotation lever 27
and an eject member 12 that releases the locking by the locking member 2e by pressing the locking member 2e.

Function The function of the floppy disk device according to the present invention will be explained with reference to FIGS. 9 and 10.

FIG. 9 shows a state before the floppy disk case 53 is inserted, and at this time the operating lever 15 is rotated in the direction of arrow D (eject position). The rotating lever 27 is urged to rotate clockwise (eject direction) by the pressing force of the urging member 28. In addition, the clamp member 9 is connected to the operating lever 1.
5 is rotated in the direction of arrow D, it is displaced above the clamp position where the floppy disk body 54 is clamped.

Here, when the floppy disk case 53 is inserted in the direction of arrow A as shown in FIG.
The contact portion 27d is contacted. The rotating lever 27 rotates counterclockwise against the pressing force of the biasing member 28 as the floppy disk case 53 is inserted.

When the floppy disk case 53 is inserted into a predetermined insertion position, the rotating lever 27 is engaged and locked with a locking member 2e projecting from below. At the same time, the tip of the contact portion 27d of the rotating lever 27 is connected to the clamp member 9.
The eject member 12 provided in the is bent.

Next, when the operating lever 15 is rotated in the direction of arrow C (clamp position) parallel to the disk surface,
The tip of the operating lever 15 slides on the inclined part of the clamp member 9, and the clamp member 9 contacts the eject member 1.
2 and close to the floppy disk main body 54. As a result, the clamper 13 rotatably provided on the clamp member 9 is moved to the floppy disk body 5.
Clamp 4.

When ejecting the floppy disk case 53 mounted in this way, press the operation lever 15.
By returning the control lever 15 in the direction of arrow D,
The tip of the clamp member 9 is separated from the clamp member 9, and the pressure on the clamp member 9 in the clamping direction is released. At the same time, the clamp member 9 and the clamper 13 are separated from the floppy disk body 54, and
Eject member 12 provided on clamp member 9
presses the contact portion 27d of the rotary lever 27, the rotary lever 27 is separated from the locking member 2e, and the locking by the locking member 2e is released. Then, the rotating lever 27 is rotated clockwise by the pressing force of the biasing member 28, and ejects the floppy disk case 53 in the direction of arrow B.

Embodiment FIGS. 1A to 1D are a plan view, a side view, a bottom view, and a front view of an embodiment of the floppy disk device according to the present invention, and FIG. 2 is an overall exploded perspective view of the device.

In the figure, a floppy disk device 1 has a metal plate frame 2 and a resin panel frame 3 extending on three sides thereof.

The frame 2 has a rectangular frame shape, and has a floppy disk drive shaft mounting hole 2a and a step motor mounting hole 2.
b, a carriage support attachment hole 2c, a screw hole 2d, a half-open engagement protrusion 2e as an engagement member, a cut and raised spring locking protrusion 2f, a pin 4, and a stopper 5.

The panel frame 3 consists of a front panel part 3a and both side panel parts 3b and 3c, and has a flat floppy disk insertion hole 3d (insertion guide grooves 3d are extended on both sides of the flat floppy disk insertion hole 3d).
-1, 3d-2), one arcuate guide groove 3e extending horizontally (shown in FIGS. 3 and 7,
), and a pair of upper and lower engaging recesses 3f provided at predetermined angular positions thereof.
(shown in FIGS. 3 and 8), and a screw hole 3g.

Reference numeral 6 denotes a clamp lever support plate, which has stopper convex portions 6a and 6b, a spring locking convex portion 6c, a mounting hole 6d, and a pin 7, and is installed on both side panel portions 3b and 3c, and is connected to the hole 6d and the screw hole by screws 8. Fixed via 3g.

Reference numeral 9 denotes a clamp plate (clamp member) for clamping the floppy disk, which has holes 9a and 9b, and a pair of mounting spring plates 10, a guide plate 11, and an eject spring plate (eject member) 12 are respectively pinned to the holes 9a. A shaft portion 13a of a resin clamp disc (clamper) 13 is inserted and supported via a coil spring 14. Note that one end 11a of the guide plate 11
is bent downward and falls into the hole 9b. Further, the eject spring plate 12 has an eject engagement plate portion 12b as a fourth engagement portion at the tip of the arm portion 12a.
has. This clamp plate 9 is the left panel part 3b.
hole 10 of each mounting spring plate 10 with screw 8.
a, fixed through screw hole 3g, mounting spring plate 1
0 as a fulcrum, it is elastically swingable in the vertical direction.

15 is a clamp lever (operation lever), which includes a lever body 21, a coil spring 22, and a lever operation part 23.
It will be assembled. The lever body 21 has a central hole 21
a, a rear end pressing convex portion 21b, a front notch concave portion 21c and a spring locking convex portion 21c-1 at the rear thereof, both inner guide grooves 21c-2, and a spring locking convex portion 21d; The pin 7 is fitted into the hole 21a and is rotatably supported. The coil spring 22 is housed in the notch recess 21c, and the front end of the coil spring 22 is housed in the convex portion 21c.
-1 is fitted and locked. The lever operation part 23 is formed by fitting and fixing a metal plate guide plate 25 (having a rear end spring locking protrusion 25a and into which a guide pin 26 is inserted and fixed) into a guide plate part 24a of a resin knob 24. 3 and 7, the guide plate portion 24a is fitted into the guide hole 3e of the front panel portion 3a, and the guide pin 26 is inserted into the inner arcuate guide portion 3.
It is guided by e-1 and installed so that it can move freely in an arc direction. At this time, both sides of the guide plate 25 are guided and fitted into the guide grooves 21c-2 on both sides of the lever body 21 so as to be slidable in the lever axial direction, and the rear end of the coil spring 22 is fitted and locked in the spring locking convex portion 25a. Ru. Therefore, the lever operating section 23 is connected to the lever main body 2.
1, the guide pin 26 can be rotated integrally with the pin 7 as a fulcrum in a horizontal plane by the guide restriction of the guide hole 3e, and is always urged by the coil spring 22 in a direction away from the upper lever body 21 in the axial direction of the lever. It is pressed against the arcuate guide portion 3e-1.
Further, the clamp lever 15 has spring locking protrusions 21d, 6.
The bar body 21 is normally biased counterclockwise by the coil spring 20 stretched between the bar 20 and the stopper convex portion 6b, as shown in FIGS. 1A and 3. Therefore, the pressing convex portion 21b does not fall into the hole 9b of the clamp plate 9 and press the clamp plate 9 downward. Therefore, the clamp plate 9 is at its upper swing limit due to the spring force of the mounting spring plate 10, and is in contact with the stopper convex portion 6a.

Reference numeral 27 is a rotating lever for floppy disk squeezing, and as shown in Fig. 1A, Fig. 2, and Fig. 5, the hole 27 is
a. Cut and raised engagement plate portion 27b and its trace hole 27b
-1, It has an inclined guide plate part 27c, an upright plate part (contact part) 27d, and an upper end engagement projecting plate part 27e as a third engagement part, and the hole 27a is fitted into the pin 4 of the frame 2. Ru. The rotating lever 27 has a convex portion 2 formed by cutting and raising both ends of a torsion spring 28 fitted to the pin 4.
f. By being locked by the engagement plate portion 27b, it is biased clockwise and comes into contact with the stopper 5. At this time, the inclined guide plate portion 27c is
The engagement protrusion 2e corresponds to the engagement protrusion 2e, and
7e corresponds to the eject engagement plate portion 12b of the eject spring plate 12 of the clamp plate 9 in a spaced manner.

Reference numeral 29 denotes a carriage support, which includes support recesses 29a,
It has a front end hole 29b and a mounting hole 29c, and a pair of guide rods 30 are mounted and fixed in the support recess 29a by a pair of presser plates 32 fixed with screws 31.
Also, the disk table 33 is inserted into the hole 29b with its shaft portion 3.
3a is fitted and supported.

34 is a carriage, which has a connecting rod part 34a and a magnetic head 35, and has a pair of guide rods 30 with arrows A and B.
Can be installed so that it can be slid in any direction. This carriage support 29 is attached to the support recess 2 with respect to the frame 2.
The peripheral portion of 9a is housed in the hole 2c, and the screw 8 is attached and fixed via the hole 29c and the screw hole 2d.

A printed circuit board 41 includes a flat motor 42 and its circuit, and is screwed to the lower surface of the frame 2. At this time, the shaft portion 33a of the disk table 33
is inserted through the hole 2a and the substrate 41, and is fitted and fixed to the magnet rotor 43 of the motor 42, so that it rotates integrally.

44 is a step motor, which is connected to the hole 2b of the frame 2.
It is installed and fixed against the

45 is a carriage drive mechanism, and a step motor 4
A pulley 46 fitted to the output shaft 44a of
It consists of a pulley 50 which is supported by a pulley 50 (which is biased in one direction by It is fixed. Therefore, when the step motor 44 rotates, the carriage 3 is
4 (magnetic head 35) moves stepwise in the directions of arrows A and B. Here, the carriage 34 is indicated by arrow A.
Directional slide limit.

52 is a floppy disk, and as shown in FIG. 2, a disk main body 54 is rotatably housed in a disk case 53, and the disk case 53 has a center hole 53a and a groove hole 53b at the top and bottom, respectively. The disk body 54 has a central hole 54a.

Next, the operation of the device 1 will be explained. First, the floppy disk 52 is inserted into the insertion hole 3d of the front panel portion 3a in the direction of arrow A as shown in FIG. Then, the floppy disk 52 has both sides of the disk case 53 aligned with the guide grooves 3d of the both side panel parts 3b and 3c.
-1 and 3d-2 and gradually move in the same direction, and the rear end of the disk case 53 is moved to the rotating lever 2.
7 and presses it.

Therefore, the rotating lever 27 rotates counterclockwise from the positions shown in FIGS. 1A and 5 against the torsion spring 28, and is guided by the inclined guide plate portion 27c to engage the engagement convex portion of the frame 2. 2e and reaches the position shown in FIGS. 3 and 6, and the engagement plate portion 27b remains in the hole
It is pressed into engagement with the engagement convex portion 2e that has entered into the interior of 7b-1 and is stopped. As a result, in Figures 3 and 6,
The upper end engagement projecting plate portion 27e of the rotary lever 27 contacts the eject engagement plate portion 12b of the eject spring plate 12, causing it to undergo a slight dimensional rocking displacement in the clockwise direction accompanied by elastic deformation of the arm portion 12a. At the same time, the floppy disk 52 reaches its sliding limit rearward (in the direction of arrow A), and its central holes 53a, 54a become concentric with the disk table 33.

Next, when the clamp lever 15 in the positions shown in FIGS. 3 and 7 is rotated in the direction of arrow C against the coil spring 20 to reach the position shown in FIG. 9 rides on the guide plate 11 through the hole 9b, and relatively swings the clamp plate 9 downward against the spring force of the mounting spring plate 10. Therefore, the tapered surface of the clamp disk 13 comes into pressure contact with the center hole 54a of the disk body 54 of the floppy disk 52, and is pressed against the disk table 33 to be clamped. The clamp disk 13, the disk body 54, and the disk table 33 are in a state of integral rotation. At this time, the magnetic head 3 of the carriage 34
5 is relatively the lower slot 53 of the disk case 53.
b makes corresponding contact with the vicinity of the outer periphery of the disk body 54. Further, as the clamp plate 9 swings downward to the position indicated by the two-dot chain line in FIG. 6, the eject spring plate 12 also moves downward. Therefore, the eject engagement plate portion 1
2b disengages below the engaging projecting plate portion 27e, and due to the elasticity of the arm portion 12a, the arm portion 2b swings back slightly in the counterclockwise direction, as shown in FIG. 4 (as shown by the two-dot chain line in FIG. 6). It comes into pressure contact with the portion 27d, and is in an engageable state where it is spaced apart and opposed to the engagement projecting plate portion 27e above it.

At this time, in the clamp lever 15, the fourth
In the lever operation part 23 shown in the figure, since its guide pin 26 corresponds to the pair of upper and lower engagement recesses 3f, the upper lever main body in the lever axial direction is biased by the coil spring 22.
4 and 8.
As shown in the figure, the guide pin 26 engages with the engagement recess 3f. As a result, the clamp lever 15 moves as indicated by arrow C.
It is locked to prevent it from wobbling in the D direction, and holds the clamp of the disk body 54 stably.

Next, the floppy disk drive motor 42 is started, and the disk table 33 and the disk main body 5 are activated.
4. The clamp disk 13 is integrally started to rotate at a predetermined speed, for example, in the direction of arrow E in FIG.

Then, the step motor 44 is started and the carriage 34 is moved through the arrow B through the carriage drive mechanism 45.
magnetic head 35 by sliding it stepwise in the direction
moves within the slot 53b and performs recording or reproduction concentrically from the outer circumferential side of the disk body 54 to the inner circumferential side sequentially. When recording or reproduction is finished, the carriage 34 slides back in the direction of arrow A.

Next, in order to take out the floppy disc 52, first press the lever operating part 23 of the clamp lever 15 in FIGS.
The guide pin 26 is pushed and slid relatively against the force, and is brought to a position where the guide pin 26 comes out of the engagement recess 3f and is disengaged. Then, the clamp lever 15
Under the bias of the coil spring 20, the guide pin 26 returns to rotation in the counterclockwise direction while being guided by the arcuate guide portion 3e-1, and the lever body 21 returns to contact with the stopper convex portion 6b, as shown in FIG. Return to the position shown in Figure 3. As a result, the pressing convex portion 21b of the clamp lever 15 falls into the hole 3b of the clamp plate 9 via the guide plate 11 and returns.

Therefore, the clamp plate 9 swings back upward until it comes into contact with the stopper protrusion 6a by the spring force of the mounting spring plate 10, and the clamp disc 13 separates from the disk body 54 to release the integrally rotating state of the clamp. do.

At the same time, the upward movement of the clamp plate 9 causes the eject engagement plate portion 12a of the eject spring plate 12 in FIG.
moves upward from the two-dot chain line position, abuts and engages the lower end of the engagement projecting plate portion 27e of the rotating lever 27, and pushes it up. Therefore, the rotation lever 27 is slightly bent upward in FIG. 6 due to its own elasticity, and the engagement convex portion 2e relatively slips downward from the trace hole 27b-1 and engages with the engagement plate portion 27b. cancel the connection. Accordingly, the pivot lever 27 is rotated back clockwise by the bias of the torsion spring 28, returns to contact with the stopper 5, and returns to the position shown in FIG.

Therefore, when the rotational lever 27 returns to rotation, the upright plate portion 27d presses the rear end of the disk case 53 in the direction of arrow B, forcing the floppy disk 52 to slide by a predetermined distance in the removal direction.

Therefore, since the front end of the floppy disk 52 protrudes forward by a predetermined amount through the insertion hole 3d of the front panel portion 3a, the operator only has to grasp it and take it out.

According to the device 1, in order to eject the floppy disk 52, the rotation lever 27 (torsion spring 8) is provided and the lever 27 is inserted into the engagement convex portion of the frame 2.
The rotational position of the rotational lever 27 is locked by e, and the rotational return of the rotational lever 27 is performed by the ejection spring plate 12 using the clamp plate 9, so that the rotation of the rotational lever 27 itself is performed. The movement mechanism is extremely simple compared to the sliding type, and in addition, there are virtually no engaging protrusions 2.
e. Only by providing the eject spring plate 12, the rotation lever 27 can be locked and returned to rotation.
The overall configuration and assembly are extremely simple.

The clamp lever 15 rotates in a horizontal plane along the arcuate guide groove 3e of the front panel portion 3a to clamp the floppy disk 52, so the conventional clamp lever itself is rotated about its lever axis. In addition, when the clamp lever 15 is in its clamp position, the operating part 23 is displaced by the coil spring 22 and is automatically locked by the engagement of the guide pin 26 and the engagement recess 3f. This makes the operation easy without requiring any locking operation. Further, when releasing the clamp, the operation is much easier by simply pushing the operating portion 23 and displacing it.
Furthermore, since the position of the clamp lever 15 is different when the floppy disk 52 is clamped and when it is released, the operator can check this and immediately know the clamped state, and there is no risk of erroneous operation.

Effects of the invention As mentioned above, the floppy disk device according to the present invention requires less installation space than the conventional sliding type device because the rotating lever rotates and locks when the floppy disk case is inserted. This makes it possible to install other components, making it possible to utilize the limited space within the device with high density.
It is also possible to downsize the device. In addition, since the clamp operation can be performed by rotating the operating lever in a direction parallel to the disk surface, the clamp operation can be performed with lighter operating force than with conventional devices that rotate the clamp lever around an axis, making it possible to operate the clamp with less force. It has features such as being advantageous for women to operate.

[Brief explanation of the drawing]

1A to 1D are respectively a plan view, a side view, a bottom view, and a front view of an embodiment of the floppy disk device according to the present invention; FIG. 2 is an overall exploded perspective view of the device;
3 and 4 are partial plan views showing the operating state of the device, and FIGS. 5 and 6 are perspective views showing the main parts of the device before and after operation, respectively;
FIGS. 7 and 8 are partial vertical cross-sectional views showing the states of other important parts of the above device before and after operation, respectively;
1 and 10 are plan views for explaining the operation of the present invention, respectively. DESCRIPTION OF SYMBOLS 1... Floppy disk device, 2... Frame, 2e... Engaging convex portion (first engaging portion), 3...
Panel frame, 3e...Guide groove, 6...Clamp lever support plate, 9...Clamp plate, 10...Mounting spring plate, 12...Eject spring plate, 13...Clamp disk, 15...Clamp lever, 27...
Rotating lever, 27b... Engagement plate part (second engagement part), 27d... Standing plate part, 27e... Engagement projecting plate part (third engagement part), 28... Torsion spring, 29
... Carriage support, 33 ... Disk table, 34 ... Carriage, 35 ... Magnetic head, 4
2...Motor, 44...Step motor, 45...
... Carriage drive mechanism, 52... Floppy disk, 53... Disk case, 54... Disk body.

Claims (1)

[Claims for Utility Model Registration] A rotating lever 27 that has a contact portion 27d that comes into contact with the inserted floppy disk case 53 and rotates in the insertion direction with the insertion operation of the floppy disk case 53; , a biasing member 28 that urges the rotating lever 27 to rotate in the direction of ejecting the floppy disk case 53; and a biasing member 28 that locks the rotating lever 27 that has been rotated in the floppy disk insertion direction in its rotational position. Locking member 2
e, a clamp member 9 that rotatably supports the clamper 13 that clamps the floppy disk body 54 housed in the floppy disk case 53, and is displaced in a direction toward or away from the disk surface of the floppy disk body 54; an operating lever 15 rotatably provided in a direction parallel to the disk surface of the floppy disk body 54 so as to be able to move to a clamp position where it contacts the clamp member 9 or an eject position where it is spaced apart from the clamp member 9; The operating lever 1 provided on the member 9
5 rotates to the eject position, and an eject member 12 presses the rotation lever 27 to release the locking by the locking member 2e.