FR2708131A1 - Disk drive and disk drive system and removable cartridge. - Google Patents

Abstract

A disk drive for receiving a removable cartridge is disclosed. The disk drive (30) is intended to receive a cartridge (200) whose outer surface has a recess. The disk drive has a lever having a lever that enters the recess to contact an engaging surface of a mounting mechanism of the disk assembly, so that movement of the lever causes the lever to move. a mounting mechanism to move so that the disk assembly is positioned on the disk drive motor shaft. Area of application: disk drive, etc.

Description

The invention relates to disk units, and in particular units

  discs in which data is stored on hard disks. The present Applicant has a number of patents describing removable cartridge disk drives and cartridges for these units. Such patents include, by way of example, U.S. Patent Nos. 4,503,474, 4,504,879, 4,717,981, 4,683,506, 4,722,012, 4,870,518. Nos. 4,965,685 and 4,864,452. All of these patents are incorporated herein by reference. They relate to a removable cartridge disk unit which can receive a cartridge containing a hard disk on which can be stored large amounts of data, comparable, in some cases, to those stored on fixed disk units. In reviewing these patents, it is clear that the design challenges are the accurate receipt of the cartridge in the disk cartridge cartridge receiver.

  and the repeated and precise positioning of the hub of the car-

  key on the shaft of a disk motor. The disk engine rotates the disk contained in the cartridge at the appropriate operating speed. The learning challenges also lie in the ability of the head and the head and arm assembly, placed in the disk drive, to be positioned through a door in the cartridge to be loaded onto the disc contained in the cartridge for

  read / write operations. We also discuss the

  nominal characteristic that the cartridge is reliably ejected from the disk drive once the

  read / write operations are completed.

  A removable cartridge disk drive is very useful for many reasons. The first reason is that a large amount of data can be stored on the cartridge, removed and, if desired, shipped

  conveniently to another place. With the need for trans-

  With ever increasing amounts of data, as is the case, for example, in graphic files, the removable cartridge can store a large amount of data that would otherwise require a large number of soft disks. The data can thus be conveniently sent, for example, to a publisher for the publication of graphics. A second reason for such designs is that the removable cartridge disk drives have infinite capacity. Once a cartridge is filled with data, the cartridge can be replaced with a blank cartridge. Unlike fixed units, there is no need to compromise between a higher capacity disk drive and the elimination of the unit.

  hard disk, less used documents.

  A third reason is that, if the disk carries confidential or secret information, it can be removed from the disk drive and kept in a secure location so that unauthorized persons can not access it.

to the data.

  The trend of the computer market and in particular of the personal computer market is to develop smaller, higher capacity and less expensive hardware. Therefore, what was considered acceptable, in terms of performance and capacity, in a desktop computer is now being asked of a laptop, but at substantially reduced dimensions. There is therefore a need for computer hardware and, for example, a removable cartridge disk drive and a removable cartridge, smaller, easier to manufacture, for example having fewer parts, and a data capacity.

higher.

  The invention relates to a removable cartridge unit of smaller size, which can be produced cheaper, for example with fewer parts,

  and having a greater data capacity.

  The present invention relates to a removable cartridge disk cartridge and a cartridge having a footprint of 45.72 mm (1.8 inches) and less. Within the limits of these congestion, one can configure cartridges containing 40, 60 and 80 megabytes and more memory. The invention includes a system consisting of a disk drive and a removable cartridge designed to minimize the size of the disk drive and the cartridge. These benefits are achieved, for example, by limiting the number of parts, designing parts to perform multiple functions, and designing the unit and cartridge system so that spaces within the system perform. multiple functions in such a way that, when the disk in the cartridge is accurately positioned on a disk motor for a read / write head to access it, no lost space other than the space required for mechanical gaming be present. The invention further includes a disk drive that can be slid into a docking housing for immediate connection to, for example, a computer

portable or portable.

  The invention comprises a cartridge which comprises

  a moving disk inside the cartridge for position-

  suitably the hub carrying the disk on a disk motor, and also to appropriately position the disk so that read / write heads

  of the disk drive can access the disk.

  The invention furthermore has the possibility of bringing the disk into a clearance space inside the cartridge in preparation for positioning the hub of the cartridge on a disk motor and then positioning the disk out of space. clearance and at the appropriate distance between the walls of the cartridge to allow the disk motor to rotate the disk to

operating speeds.

  The invention includes a cartridge having a hub that can be extended beyond the cartridge shell

  to allow the disk to be positioned inside the cartridge.

  The invention includes a disk drive maneuver that performs multiple functions for

  allow a cartridge to be scanned and aligned in a disk drive, allow the disk drive read / write heads to access the disk in the cartridge and allow the cartridge to be ejected from the drive of disc.

  This multi-function joystick provides a compact design that can be achieved with a 45.72mm footprint.

  The invention comprises a ramp for a carrier arm

  head of the disk drive that allows the position of the head to be accurately adjusted and to load the headrest arm efficiently and smoothly and dynamically on the rotating disc while also allowing the head to be removed from the disc

in rotation.

  The invention includes a disk drive cover

  who is comfortable and comfortable to ride on the base of the unit.

  The invention further includes the cartridge from which one or more projections for cooperating with the disk drive to align the cartridge with respect to the disk drive and to position the disk contained in the cartridge so that the read / write unit can access properly

to the disc.

  The invention includes a cartridge design that protects the protrusion on the cartridge and is used as the interface of the cartridge with the disk drive. With respect to the design space reduction criteria, these projections serve other functions such as (1) ensuring that the cartridge is properly inserted into the unit, and (2) implementing the controller

multi-function unit.

  As part of the centering design of the new cartridge, the cartridge nut is accurately and repeatedly positioned both axially and radially with respect to a receiving portion in the disk drive to accurately position the

  cartridge in the unit. In addition, the cartridge includes a device for preventing the disc from rattling when the cartridge

  key is removed from the disk drive.

  Another feature of the cartridge of the invention comprises the cartridge door and the mechanism

opening of the door.

  In addition to the reasons why we have a

  disk drive with reduced footprint as indicated below.

  On top of this, the fact is that with a 72mm cartridge, only one project can be assigned to a single cartridge and, therefore, multiple projects can conveniently be stored and transported on multiple cartridges. This offers greater flexibility of use

  such units in laptop computers.

  In an alternative embodiment of the present invention, the overall height or "profile" of the cartridge is reduced by the fact that the lug of the mounting mechanism of the disk assembly is set back. The paw is

  committed by a lever that can selectively exceed

  above the surface of a multi-function joystick. The displacement of the tab under the effect of the protruding lever causes a rotation of a screw of the cartridge from which the tab extends. A rotation of the screw

  the cartridge brings a disk assembly placed inside the

  the cartridge to be positioned above an engine

  disc for mounting on it.

  The cartridge also has a slot which is engaged by a positioning mechanism of the cartridge forming part of the disk unit. The slot is provided through the insertion direction of the cartridge into the disk drive and provides enhanced locking, positioning, and ejection capabilities. A sensor-transmitter device is provided to indicate the correct positioning of the multi-function controller and a cartridge in the disk drive. The invention will be described in more detail with reference to the accompanying drawings by way of non-limiting examples and in which: FIG. 1 is a perspective view of an embodiment of the disk drive according to the invention; Figs. 2a and 2b are plan and side views of one embodiment of the disc cover of the invention shown in Fig. 1; Figs. 3a, 3b, 3c and 3d are plan views of an embodiment of the disk drive of Fig. 1 showing the disk drive in off, intermediate and on modes; FIGS. 4a, 4b, 4c and 4d are views in

  plan above and below, on the side and in cross-section

  of one embodiment of the multi-function controller of the disk drive of FIG. 1 according to the invention; Fig. 5 is a plan view of an embodiment of the base plate of the invention shown in Fig. 1; FIGS. 6a, 6b, 6c and 6d are end and side views of an embodiment of the ramp according to the invention of FIG. 1, the head-arm assembly and the head being positioned relative to each other. at the ramp in Figures 6c and 6d; Fig. 7 is a cross-sectional view taken along the line 7-7 of Fig. 8, showing the cartridge mounted on the disk motor of the embodiment of Fig. 1; Fig. 8 is a plan view of a cartridge according to the invention received in the embodiment of the disk drive of the invention shown in Fig. 1, the cartridge door being fully open; Figure 9 is a perspective view from above of the cartridge according to the invention; Figure 10 is a perspective view from below of the cartridge according to the invention; FIGS. 11a and 11b are plan views of an embodiment of the cartridge according to the invention shown in FIG. 9, the hood being removed to show the door and the linkage mechanism constituting other features of the invention. invention; Figure 12a is a bottom plan view of the cartridge of Figure 9 according to the invention; Fig. 12b is a plan view showing the screw and nut of the cartridge of the embodiment of the invention shown in Figs. 9 and 12a; Fig. 13a is a front edge view of an embodiment of the cartridge of the invention shown in Fig. 9; Fig. 13b is a view of a side edge of the embodiment of the cartridge of the invention shown in Fig. 9; Figure 14 is a plan view showing

  the inside of the bottom of the cartridge of the invention represents

  Fig. 9 showing the location of the nut of the cartridge of Fig. 12b; Figs. 15a, 15b and 15c are cross-sectional views of the cartridge of Fig. 9, showing in particular the cartridge screw, the cartridge nut, the cartridge bottom and the disc in operating positions. , non-functioning and intermediate; Figures 16a, 16b and 16c are top and side views of the cartridge screw of the embodiment of the invention shown in Figure 9, Figure 16c showing the entire peripheral edge of the screw as shown. in Figure 16a, placed on a flat surface;

  FIGS. 17a, 17b and 17c show schematically

  the interaction of the invention between the embodiment of the cartridge screw shown in Fig. 9 and the embodiment of the disk drive handle of the embodiment of Fig. 1; FIGS. 18, 18a, 18b, 18c and 18d show in plan views the interactions according to the invention of the embodiment of the disk drive lever according to the invention shown in FIG. 1 with one embodiment the cartridge of the invention of Figure 9; Figures 19, 20, 21 and 22 are plan views showing an advantageous alternative embodiment of

  the disk drive according to the invention in modes of non

  operation, intermediate and operation; FIGS. 23a, 23b, 24a, 24b, 25a, 25b and 26a,

  26b are views respectively in plan and in cross section.

  partial versal showing the interaction according to the invention between the embodiment of the cartridge screw and the disc drive lever of the advantageous embodiment shown in Figure 19; Figs. 27, 28, 29 and 30 are plan views showing the interaction according to the invention of the embodiment of the disk drive handle of the invention shown in Fig. 19 with the embodiment of the cartridge of Figure 35; Fig. 31 is a plan view of the inner surface of the bottom portion of the housing of the cartridge of Fig. 35; Fig. 32 is a plan view of the screw and tab of one embodiment of the cartridge of Fig. 35; Fig. 33 is a plan view of the multi-function joystick of the embodiment of Fig. 19;

  FIG. 34 is a plan view of the cartridge positioning counter-cam of the embodiment of FIG.

  invention of the invention shown in Figure 19; Figure 35 is a perspective view of an advantageous alternative embodiment of the cartridge according to the invention; Fig. 36 is a plan view of the embodiment of the cartridge of Fig. 35; Figs. 37a, 37b, 37c and 37d are views of the leading edge, trailing edge and right and left edges of the embodiment of the cartridge of Fig. 35; Fig. 38 is a bottom plan view of the cartridge of Fig. 35; and Fig. 39 is a plan view of the inside of the case bottom of the cartridge 35 with details.

  additional spiral fins.

  It must be understood that in a form

  In the embodiment, the height of the disk unit 30 is 10.5 mm and the disk unit is configured to receive a cartridge having a disk with a diameter of about 45.72 mm. In a specific embodiment, the diameter of the disk is about 48.01 mm. For comparison, the cartridge 200 ee the invention as shown in Figure 9 has a width, through the front face of the cartridge where the door is located, of about 49.98 mm and a length or depth of 51.56 mm. The

  height or thickness of the cartridge is 5.64 mm.

  The removable cartridge 200 of the invention (Figure 9) comprises an upper cover 202 which is coupled with a base 204 (Figure 10). The top cover may be molded of engineering plastic or metal and may be attached to the base by snaps 207, adhesive bonding or screws. The base 204 may be formed, for example,

  a molded technical plastic material.

  Looking at FIG. 10, it is evident that a cartridge screw 206 having a protruding tab 208 is mounted through the base. The base 204 has a

  substantially planar surface 210 from which first and second protrusions 212, 214. extend. The tab 208 also extends away from the flat surface 210. A peripheral rail

  216 surrounds the tab 208 and the first and second protrusions 212, 214 and protects them from damage. As

  shown in FIG. 10, the peripheral rail 216 extends

  above the flat surface 210 and on three of the four peripheral edges of the base 204. The first peripheral edge 218 from which the peripheral rail does not extend is the front side 218 of the cartridge (Figure 13a) which defines a access of the cartridge through which the heads can be advanced to access the hard disk 220 contained in the

  cartridge 200. As will be explained more fully below

  below, the screw 206 of the cartridge comprises, in an advantageous embodiment, three screw threads 224 (made

  in the form of grooves in this configuration) that

  couple with threads 222 of cartridge nuts which are defined in the base 204 of the cartridge (FIGS. 12b and 14). Consequently, a movement of the tab 208 causes a displacement of the screw 206 of the cartridge with respect to

  the nut 221 of the base 204 of the cartridge.

  A cartridge hub 226, on which the disk 220 (FIG. 15a) is mounted, is mounted in the center of the screw 206 of the cartridge. The hub 226 of the cartridge has a shaft nose engaging mechanism 228 which is used to accurately and repeatedly feed the hub 226 to be engaged and positioned on the nose 56 of the disk motor shaft 54. The disc motor engaging mechanism 228 comprises, in a preferred embodiment, first and second contact points or bosses 230, 232. The engagement mechanism 228 further has an elongated groove 234 within which is disposed a stiff spring positioning member 236. The

  mechanism 228 for engagement of the disk motor being posi-

  mounted above the nose 56 of the motor shaft, the spring positioning member 236 is moved, causing the nose 56 of the motor to be positioned essentially by three points defined by the two contact points 230, 232 and a point

  on the spring positioning member 236.

  A more detailed view of screw 206 of the

  cartridge can be seen in Figures 16a, 16b and 16c.

  Figure 16a is a plan view of the screw 206 of the cartridge. It can be seen that the screw 206 of the cartridge comprises threads 224 of screws. In a preferred embodiment, the screw threads 224 have the following specifications. The shape of the net is a spigot 60 as seen perpendicular to the primitive helix. The pitch angle is 30, a left-hand thread being specified. The pitch diameter is 18.62 - 0.000 + 0.076 mm, with an axial pitch of 33.78 nm. The thread pitch is 1.65 cnm perpendicular to the propeller. Three equidistant entries

  net are provided. For more details, refer to the American standard B1-3-1941. A similar complementary thread is defined by a nut thread 222 in the base 204 (FIG. 10) of the cartridge case.

  As can be seen in FIG. 15a, disc 220 is attached to hub 226 by methods known in the art, for example by the use of suitable adhesives and / or mechanical techniques. The screw 206 of the cartridge is held between a flange 238 projecting from the hub 226 and a retaining ring 240 which can be placed in an annular groove 242 of the hub after the screw 206 of the cartridge has been placed in the immediate vicinity of the hub. 238. It should be noted that there is still a significant drift between the flange 238 and the retaining ring 240 so that the screw 206 of the cartridge can alternatively bear against the flange 238 and the retaining ring 240 to position the flange 238. disc 220 in the cartridge 200 while also allowing the cartridge screw to be spaced from both the flange 238 and the retaining ring 240 during the read / write operations as described hereinafter. A cartridge door pivot 274 and a spacer 244 are

  also placed in the cartridge 200.

  In Fig. 15a, the cartridge means is positioned in engagement with the nose 56 of the disk motor shaft. This is the position that the hub 226 and disk 220 occupy when the disk is rotated at an operating speed by the disk motor, with appropriate clearances between the disk and the top cover 202 of the cartridge and the base 204 of the cartridge. In this configuration, the hub 226 is spaced an appropriate distance from the pivot and the door spacer 244 of the cartridge, the cartridge screw 206 being spaced between the

  flange 238 and retaining ring 240, without contact with them.

  As can be seen in FIGS. 7 and 15a, in the operating position, the nut 206 and the hub 226 project below the plane of the plane surface 210 of FIG.

the base 204 of the cartridge.

  Figure 15b shows in cross section the

  cartridge as it appears when it is outside

  of the disk drive. In this figure, it can be seen that the hub 226 is pushed up against the pivot and the spacer 224 of the door of the cartridge by the screw 206 of the cartridge which is biased against the flange 238 of the medium 226 under the effect of the force of a spring 258 (Figure 12b). This is an anti-rattling configuration of the hub and the disc is therefore retained in a fixed position relative to the

cartridge case.

  In FIG. 15c, the screw 206 of the cartridge is pushed against the retaining ring 240 while the mechanism 228 for engaging the shaft nose 228 begins to bear against the nose 56 of the shaft. As can be seen in FIG. 15c, the spring-loaded positioning member 236 just begins to bear against the nose of the shaft 56. The magnetic ring 57 on the disk motor then acts to pull the hub 226 upward. in contact with the disc motor, the hub 226 applying completely to the nose 56

  of the tree as shown in Figures 7 and 15a.

  With regard to the base of the cartridge, FIG. 14 represents an inner surface 246 of the base 204 without any parts of the cartridge being mounted on it. As can be seen in FIG. 14, the base has a central opening 248 which defines the nut 221 of the cartridge and the threads 222 of the nut. The threads 222 of the nut mate with the threads 224 of the screw 206 of the cartridge. The screw 206 of the cartridge is held in position relative to the base 204 of the cartridge by means of a key 250 (FIG. 12b). The key 250 is positioned in a groove 252 of the screw 206 of the cartridge. The key 250 has a tongue 254 which enters a groove 256 defined in the base 204 of the cartridge. The tongue 254 of the key 250 allows the latter and the screw 206 of the cartridge to make limited movement of rotation relative to the base 204 of the cartridge, the tongue 254 moving from one end to the other. Another of the groove 256. The key 250 is biased into the first position, shown in FIG. 12b, by a spring 258. In this first position, the tab 208 is in a position which is suitably aligned to be received by the unit. disk 30, as described below. So that the disc is properly positioned inside the cartridge, in preparation to bring the disc to speed

  of operation, the leg is moved, as described below.

  below, about 13.5 to reposition the disc. The groove 256 is of a width of approximately 15 allowing

variations and play.

  As can be seen in Fig. 14, a straight spiral wall 260 extends from the base 204 and spirals from the central port 248 to the side of the cartridge. The spiral wall 260 is used to move air to the filter of the cartridge which is placed in a space 262 so that air can be discharged through the orifice 264. Recesses 266, 270 are defined in the base 204 of the cartridge. These recesses are used to house the portion of the headgear assembly that carries the head 68 when the cartridge is inserted into the disk drive and that the headgear assembly slides downward onto a disk in rotation so that the head

  68 can be loaded over the disk 220.

  With respect to the cartridge door and with reference to Figs. 11a and 11b, the cartridge door 272 is shown in an open position (Fig. 11a) and a closed position (Fig. 11b). The cartridge door 272 is pivotally mounted at a pivot point 274 on the door pivot and spacer assembly 244 as can be seen in FIG. 15a. The door opening billet 278 is pivotally mounted on the door 272 of the cartridge at a pivot point 276. The door opening billet 278 includes a first section 280 and a second section 282 which forms an angle with the first section 280 and being arranged to move in a groove 284 defined in the base 204 of the cartridge.20 A tongue 286 protrudes downwardly at the end of the second section 282. A coil spring 288 is trapped between the downwardly projecting tab 286 and the bottom of the groove 284. A finger 170 (Fig. 3a) protruding from the disc unit is inserted through an opening 290 to push the tab 286 against the spring 288, pushing the door opening bell 278 and pivoting the door about the pivot point 274 from the closed position shown in Fig. 11b to the open position of Fig. 11a. When the finger 170 is removed from the aperture 290, the spring 288 moves the tab 286 forward towards the front side 218 of the cartridge, urging the door 272 to pivot toward the closed position of the cartridge.

Figure llb.

  Figure 8 shows the outline of a cartridge totally received in the disk drive. A finger 170 is advanced through the opening of the cartridge to push back the door opening link 178, thereby pivoting the door to the open position as shown in FIG. initial insertion of the cartridge into the disk drive, since the heads, even in a parked position (due to the disk drive clutter), are immediately received in

  the cartridge envelope before they are discharged to disk. Figure 8 depicts the internal mechanisms of the disk drive in the same position as that of Figure 3d.

  The cartridge has been specifically designed for the above functions and has been designed to

  can not be inserted inadvertently into the

  drive in an inappropriate orientation.

  For example only, the handle 58 which extends from the base plate 32 of the disk drive would bear against the rail 216 of the cartridge or against the cover 202 of the cartridge (if the cartridge is at the upside down) if the back side 292 or the side sides 294, 296 were sunk into the cartridge receiver to the disk drive instead of the front side 218. That the cartridge is upside down or upside down, if it is inserted into the cartridge receiver of the disk drive other than by its front edge, the handle 58 obstructs the passage of the cartridge and thus protects the heads. In addition, in the case where the front side 218 is inserted first, but the cartridge is upside down, the cartridge cover 202 prevents the cartridge from being fully received in the cartridge receiver.

  the disk drive because the cover interferes with the controller 58 ..

  Only when the cartridge is properly inserted does the absence of a downwardly projecting rail in the immediate vicinity of the front side 218 allow the cartridge to not bear against the handle 58 so that it

  can be properly aligned inside the unit.

  Fig. 7 is a cross-sectional view of the cartridge 200 located in the receiver 53 of the disk drive. As can be seen in this figure and in FIG. 11a, the cartridge door 272 has a substantially "L" shaped cross-sectional shape with a wedge-shaped radial arm portion 298 of which a curved side 300 extends down. The side 300 is disposed partly in a groove 302 defined in the base 204 of the

  cartridge. The groove 302 defines a path for the curved side 300. The gate 272 hermetically isolates the disk from the outside medium by being disposed through the cartridge door opening 20510.

  In Fig. 7, the retainer 62 is shown with a chamfered head 63 and the cartridge screw 206 is also shown with a chamfered or beveled edge 207. The chamfered edge 207 for the cartridge screw can also be seen in Figures 15a, 15b and

  c. These two chamfered edges come into contact with

  with each other while the cartridge screw is

  lowered to the disk motor using the joystick 58.

  At this time, the screw of the cartridge is accurately positioned both axially and radially with respect to the retaining element 62, as can be seen in FIG. 7 in the final rest position. The chamfered edges 62, 207 cause the cartridge screw 206 to be initially engaged and properly centered with the retainer 62 as the cartridge screw 206 is pushed down toward the element. A distinct advantage of this arrangement is that when the cartridge screw is engaged in a thread of the nut of the base 204 of the cartridge, the base 204 of the cartridge is in position. is rigidly positioned relative to the screw 206 of the cartridge. Therefore, screw 206 of the

  cartridge being positioned axially and radially

  by the retaining element 62, the cartridge itself is accurately positioned with respect to the element 62 of

  hold er at the cartridge receiver of the disk drive.

  This provides a new device and method for aligning the cartridge with the disk drive of

  way that the heads can be unloaded precisely

  if we. Reference is also made to the figures, and in particular to FIG. 1, which shows a form of embodiment

  of the removable cartridge disk unit according to the invention.

  The disk unit 30 comprises a base 32 which, in an advantageous embodiment, can be molded from aluminum or other suitable material. The cover 34 of the base is fixed on the base 32. The base 32 defines the rails 36, 38 base that can be used to cause the disk 30 to be received by sliding in a PC MCIA interface such that the The disk unit may, by sliding, be brought into a position of use and remote from this use position with appropriate portable, portable or calculating format computers. The disk drive includes appropriate docking connectors 40, which transmit power, data, address and other signals between the disk unit 30 and the microprocessor or other computing means requiring data to be stored. on the disk drive 30. The disk drive 30 has a spring-loaded gate 88 which is mounted

pivotally on the base 32.

  Figures 2a and 2b show a plan view and a side view of the base cover 34 of the invention which allows easy connection between the cover and the base and which limits the space required. The cover comprises "J" shaped fingers 42 projecting from the sides 44 of the cover 34 in the immediate vicinity of the front end 46 of this cover. Holes 48 pass through the upper surface of the rear portion of the hood and screws pass through these holes to secure the hood 34 of the disk unit to the base 32. In practice, the "J" shaped fingers 42 are positioned in the openings 48 of the base of the disk drive, defined in the base 32, and they are locked below the base

  32, screws being placed in the holes 48 and received in the threaded holes 52 (3a) defined in the base 32.

  This arrangement can conveniently maintain the disk drive on the base while minimizing the number and size of the necessary fasteners.

  With respect to the multi-function joystick arrangement of the disk drive, Figs. 3a, 3b, 3c and 3d show an embodiment of the disk drive of the invention, shown in Fig. 1, with the disk cover 34 removed to reveal the interior active mechanisms of the invention. FIG. 3a shows the disk unit ready to receive the cartridge 200. FIG. 3b shows the position of the mechanisms while the cartridge is aligned and that the hub of the cartridge has not yet been unloaded on the disk drive of FIG. the disk drive. Figure 3c shows the position of the mechanism of the disk drive as the cartridge hub engages the nose of the disk motor. Figure 3d illustrates the inner mechanism, the heads being unloaded on the disc content

in the cartridge.

  By describing in more detail the internal mechanisms of the disk unit, FIG. 3a shows a disk motor 54 which, in an advantageous embodiment, is fixed to the base 32 and is stationary relative to said base 32. Disk Engine 54 features

  a disk motor shaft or nose 56.

  The multi-function controller 58 is disposed around the disk motor 54. The multi-function controller 58 itself is shown in FIGS. 4a to 4d. This multi-function joystick 58 has a central opening 60 through which it is retained by a handle retainer 62 so that the handle 58 can pivot about the disc motor 54 during the housing of the cartridge operation. 200 on the nose 56 of the engine, and to unlock the head arm assembly so that it can be discharged down a ramp 66, the head or transducer 68 being

  discharged on the disk 220 in rotation.

  The multi-function joystick 58 includes an operator lever 70 and a cartridge engaging lever 72. The cartridge engaging lever 72 may be engaged by the first and second protrusions 212, 214 which extend downwardly from the cartridge hub 204 as

  described more fully below. The controller 58 to function

  There is also a central annular body 74. A cartridge tab engagement mechanism 76 is defined in the annular body 74 in close proximity to the operator lever. This mechanism 76 includes a passage 78

  to initially receive the tab 208 of the cartridge 200.

  As is evident from Fig. 10, upon insertion of the cartridge into the disk drive, the tab 208 follows the mechanism 228 for engaging the shaft nose of the cartridge 200 so that when the engagement mechanism 228 is essentially above the nose 56 of the shaft, the leg

  208 is arranged in the passage 78 of the mechanism 76 of

  the cartridge as you can see

  schematically shown in FIG. 17a.

  The mechanism 76 for engaging the tab of the cartridge further comprises a tongue 80 for positioning the cartridge and a tongue 82 for dislodging the cartridge. A groove 84, capable of receiving the tab 208 as described below, is immediately below the tongue 80 for positioning the cartridge. The complete introduction of the cartridge into the disk drive causes the cartridge engagement lever 72 to be engaged by the first projection 212 of the cartridge which, in an advantageous embodiment, is substantially parallel to

  a radius of the disc 220 (Figure 18a). Therefore, inserting

  The cartridge 200 into the cartridge receiver 86 through the disk drive door 88 causes the operator lever 70 to be rotated by the first projection 212 pressing against the cartridge engaging lever 72, an advantageous embodiment, about 18 to

  the position shown in Figures 3b and 18b. At this point, the operator can easily access the lever 70 and, as shown in FIG. 17a, the tab 208 is engaged by the tongue 80 for positioning the cartridge.

  Once the operator's lever 70 exits the disk drive 30, the operator can push the lever 70 to the position shown in Figs. 3c and 18c, which is located about 13.5 from the position shown Figures 3b and 18b for a total of about 31.5 from the rest position of the joystick for unloading the cartridge (Figures 3a and 18a). During the rotation of the lever 70 for the operator on the additional step of 13.5 from the position of FIGS. 3b and 18b to the position of FIGS. 3c and 18c, the disc and the hub of the cartridge are biased downwards. towards the disk motor by the screw of the cartridge which acts against the threads on the nut of the cartridge placed in the base of the cartridge. As the hub approaches the disk motor, it begins to engage the nose of the engine, and the magnetic ring 57 pulls the hub completely over the nose to position the hub securely.

  cartridge on the nose of the motor shaft (Figure 7).

  As can be seen in Figure 17b, at this time, the tab 208 moves down between the tabs 80 and 82 to rest in the lower position as shown in Figure 17b. At this point, the cartridge is fully set up on the disk engine. The lever 70 for the accelerator can then be raised by the operator over an additional distance of 18.5 (including 2 for the game) to the fully closed position to allow

  heads to be unloaded on the disk as described above.

  below. At this moment, the tab 208 remains stationary and is locked in the groove 84 while the tongue 80 passes over the tab 208. This overtravel allows the joystick 58 to perform a multi-function unlocking function. headset assembly 64 and other functions described below without affecting the position of the cartridge hub attached to the disk motor, nor the position of the disk in the cartridge. Therefore, during this stroke overshoot, the handle 58 reaches the final operating position shown in FIGS. 3d and 18d which, as described below, allows the assembly

  with arms folded to be released.

  Before an ejection of the cartridge, the dislodgement tab 82 of the cartridge is moved clockwise to apply a force to the tab to dislodge the disk motor hub. This takes place while the operator lever is moved clockwise from the position of FIGS. 3c and 18c to the position of FIGS. 3b and 18b. As can be seen in FIG. observing FIGS. 18a, 18b, 18c and 18d, the insertion of the cartridge into the

  cartridge receiver brings the first protrusion 212,

  At the base 204 of the cartridge, engage the cartridge engaging lever 72, urging the lever toward the position shown in FIG. 18b. It should be noted that

  the second projection 214 slides beyond the engaging lever 72.

  cartridge while the operator lever is in the left-most idle position as shown in Figs. 3a and 18a. When ejecting the cartridge, the first protrusion 212 of the cartridge pushes against the engagement lever 72 of the cartridge so that

  to eject the cartridge while the lever 70 for the operation of

  The driver is moved from the position of FIGS. 3b and 18b to the position of FIGS. 3a and 18a. As described elsewhere, if the lever 70 for the operator is not fully housed in the rest position of FIGS. 3a and 18a, the second projection 214 of the cartridge which, in a preferred embodiment, is substantially perpendicular to the first projection 212 of the cartridge, then bears against the lever 72 to push the lever 70 for the operator to the position

Figures 3a and 18a.

  The multi-function controller 58 further performs a function of ejecting the cartridge. The handle has a groove 90 in which is disposed a spring 92 (Figures 3a, 3b, 3c and 3d). A lug 94 projects from the base 32 of the disk unit 30 and is disposed in the groove 90. When the lever 70 for the operator is moved about 18.5 from the position of Figs. 3c and 18c until 'at

  the position of FIGS. 3d and 18d, the controller 58 passing through

  above the tab 208 of the screw 206 of the cartridge, the spring 92 is compressed between the lug 94 and the end of the groove 90. The joystick 58 with multiple functions is locked

  in this position by the latch 124 as described above.

  below. When the read / write operations have stopped, the latch 124 releases the handle 58 and the spring 92 causes the lever 70 for the operator to protrude outside the disk unit to the position shown in Figs. 3c and 18c. At this point, the operator can push the lever to the left to the position of Figures 3a and 18a. By doing so, this action dislodges the nosepiece hub from the disk shaft, and then the cartridge engagement lever 72 engages the first protrusion 212 which exits the cartridge base to push the cartridge into position. outside the disk drive. In the case where the lever 70 for the operator is not fully pushed to the leftmost resting position as shown in Figs. 3a and 18a, the second projection 214 comes into contact with the engagement lever 72. cartridge to push the handle 58 in the opposite direction of that of the clockwise,

  ensuring that the lever 70 for the operator is placed total-

  in the leftmost rest position. So

  positioned, the lever for the operator is hidden inside the

  disk drive so that it can not be inadvertently activated before a cartridge is inserted into the disk drive. In addition, the heads and the head arm assembly loaded on the ramps are not damaged by being prematurely discharged onto the cartridge receiver 86 while no cartridge is received therein. The multi-function joystick 58 performs a number of other functions including a toggle function and a locking function of the headgear assembly. A toggle link 100, which pivots on an axis 102 rising from the base 32 of the disk drive, engages a groove 98 in the periphery of the multi-function joystick 58. The toggle link 100 defines a groove in which the axis 102 is loaded as well as a spring 104. When the multi-function handle is rotated counterclockwise from the position of 3a to the position of FIG. 3c, a finger-like protrusion 106 of the toggle link 100, which is engaged in the groove 98 of the multi-function joystick 58, is urged in the opposite direction to that clockwise from the position of Figure 3a to the position of Figure 3c. At this time, the spring 104 is compressed as the unstable equilibrium central position is reached. The purpose of the toggle link 100 is to lock the multi-function handle 58 in the home position as shown in FIG. 3a, and

  can also be used to help eject the car-

  200 key of the disk unit 30. It should be understood that the cartridge can be ejected by the joystick 58. However, in some embodiments, the toggle link 100 can be used to push against the joystick to help the ejection of the cartridge. Inserting the cartridge 200 into the disk drive 30 and causing the operator to operate the operator lever in the counterclockwise direction has the effect of overcoming the resistance of the link 100 to unlock the joystick 58 with multiple functions. A second groove 108 is defined in the immediate vicinity of the groove 98 in the periphery of the handle 58. A thrust return bracket 110 is pivotally mounted on the base 32 of the disk drive at a pivot point 112. such that the bracket 110 is pivotable from the position shown in Fig. 3a to the position shown in Fig. 3d, thereby pivoting in the clockwise direction while the multi-function handle 58 is biased in the direction reverse. The bracket 110 has a cam follower 114 which follows a peripheral edge of the handle 58 until it fits into the groove 108 as can be seen in FIG. 3d. This occurs at the end of the over-travel movement of the handle 58. At this time, an arm push rod 116, which is pivotally mounted at a pivot point 118 on an extension of the bracket 110, is moved to the disk motor 5415, releasing the head arm assembly 64. In an advantageous embodiment, a lug 120 projects downwardly from the head arm assembly 64 and is engaged by the push rod link 116. Turning the multi-function lever 58 clockwise causes the bracket 100 to move in the opposite direction, biasing the link 116 against the pin 120 to bring the gate assembly - head to be

  raised from the disc 120 and raised along the ramp 66.

  Regarding the locking of the handle, another groove 122 is defined in the periphery of the handle, in an advanced position in the opposite direction of

  that of the hands of a clock around the handle 58.

  This groove is designed to mate with the latch 124 to lock the handle in the working position shown in Figures 3d and 18d, the cartridge being fully housed in the cartridge receiver, the hub of the cartridge being mounted on the nose of the disc motor and the headgear assembly being unlocked. The latch 124 pivots about a pivot point 126 and a spring recalls the latch toward the handle 58 so that it is pushed back into the groove 122 when the latter is at the protrusion 128 protruding from the latch 124. At this time, a spring-biased intermediate member 130 is biased downward toward the door opening side 132 of the disk unit. A projection 134 on the intermediate element then falls into a groove 136 defined in the latch to retain the latch in a locked position. In the event of an emergency, when the power supply is removed from the disk drive, a small diameter wire may be inserted into a port 138 on the door opening side 132 of the disk drive. to cause the intermediate member to be disengaged from the latch so that the spring 92 contained in the handle 58 biases the handle 58 to come out of the disk drive (Figures 3c and 18c), allowing the operator to manually turn the operator lever clockwise from the position of Figures 3c and 18c to the position of Figures 3a and 18a, so that the cartridge is

ejected from the disk drive.

  In normal operation, the latch 124 is disengaged from the groove 122 of the handle by means of a coil which pulls a bobbin link 142 upwardly, which rod pulls itself upwardly.

  intermediate 130 to release the lock 124.

  It should be noted that, alternatively, the lock 124 may be replaced by a coil having a plunger engaging the groove 122 of the handle. An appropriate emergency release mechanism, operable manually from the door-opening side 132, releases the handle in the event that the power supply to the disk drive ceases while a cartridge is locked in the cartridge receiver of the disk drive. With respect to the disk drive ramp, as shown in FIG. 3a, the head arm assembly 64 is pivotally mounted at a pivot point 144 and is actuated by a voice coil motor 146. . As previously indicated, the headset assembly 64 may be loaded onto the disk 220 from the ramp 66. As seen in FIGS. 6a-6d, the ramp 66 is of a novel design and includes upper and lower surfaces 148, 150 for receiving the headrest arm. The ramp 66 is fixed to the base by appropriate fixing means at a point 152, a lug 154 projecting upwardly from the base being received in an oblong hole 156 of the ramp. In a preferred embodiment, the arm loading surfaces 148, 150 terminate in a delivery rib 158, 160. In an advantageous embodiment, the loading surfaces of the head arm arm 148, 150 are inclined downwardly from the ribs 158, 160 under a slope of about 2.74. The head arm assembly 64 includes an arm 164, a leaf spring 166, a load beam 168, and a cardan mounting member 169 on which the read / write head 68 is mounted. As can be seen in FIG. 6c, a lower angle 162 of the loading surface 48 of the headrest arm is the first to come into contact with a portion of the load beam 168 of the assembly.

  64. In the position in which the

  When the head arm is fully received on the ramp 66, the load beam 168 is supported by the rib 158 in the immediate vicinity of the cardan mounting portion 169.

  and the read / write head. The reason for this

  The ramp 66 must be able to remove the head of the disk at a point substantially preceding the point where the portion of the head-arm assembly 64 adjacent to the head can be raised by the ramp 66. The ramp therefore a portion of the load beam 168 well clear of the head 68 as can be seen in Figure 6c. It should further be understood that due to the reduced space, when the cartridge is received in the disk drive, the cartridge door is opened and the heads, fully loaded on the ramp 66, are received in the cartridge. It is therefore necessary to precisely adjust the position of the heads so that they are not damaged by the cartridge while it is pushed inside the disk unit. Therefore, as seen in Figure 6d, the ramp 66 must accurately adjust the load beam 168 in the immediate vicinity of the head. Once the disk is properly positioned within the cartridge due to the movement of the cartridge screw, the load beam can lower the arm load surfaces 148, 150 so that the heads are unloaded onto the disk. in

rotation.

  As can be seen in the present embodiment, the ramp 66 raises and engages the plague first.

  168 at a point which is distant from the

  The head is mounted and, in fact, as shown in FIG. 6c, which is adjacent to the leaf spring 166. When the voice coil motor rotates the head arm assembly 64, the beam 168 of loading rises along the ramp so that the head 68 is accurately positioned by the rib 158 of the ramp 66 which is

  contact with the flail 168 loading at a point sens-

  natively adjacent to where the head is mounted. A large part of the loading beam is therefore traversed by the ramp while this loading beam is moving

compared to the ramp.

  The disk drive and the cartridge can be formed of a number of materials as is known in the market. Some of these materials are described in the aforementioned prior references. Only by way of example, the cover of the cartridge may be made of aluminum, the bottom of the cartridge being made of a plastic material such as a polycarbonate. The base of the disk unit can be made of cast aluminum, the top being made of formed aluminum. Other plastics that can be used for parts in addition to polycarbonate include

  "Delrino", "Nylon." and the like. These parts may include

  graphite and nylon composites and other

  composites and may further comprise "Teflon" composites to increase lubricity.

  With regard to the possibilities of industrial application, it is described after operation and other advantages of the invention. It is first apparent from the foregoing that the design described above provides a removable cartridge disk unit and a removable cartridge which fits suitably in a 45.72 mm footprint, the disk having a diameter of 45.72 mm. approximately 45.72 mm and the height of the disk unit being 10.5 mm. In this congestion, it is possible to use

  cartridges with a capacity of 40, 60 or 80 megabytes and more.

  The ability of the disk drive to adapt to the 45.72 mm footprint can be attributed to a number of factors taken separately, which separate factors also offer other advantages considered together. These factors include the fact that the disk drive and the removable cartridge behave in the manner of a system, which minimizes the number of parts, which system forms a completely new interface allowing the cartridge to be received. , the disk to be properly positioned and the other functions of the disk drive to be filled. In particular, to obtain the space requirement of 45.72 mm, the cartridge has been designed so that the disk and the hub on which the disk is mounted can be repositioned with respect to the cartridge housing so that the hub is disengaged from the cartridge. disk motor and the nose of this disk motor while the cartridge is inserted into the cartridge receiving mechanism of the disk drive. This results in an efficient use of space so that after the hub has been mounted on the disk motor, there is no unnecessary dead space above or below the cartridge, which is not applicable. In other words, the disk and the hub can be moved into the normal clearance space required by the disk when it rotates relative to the walls of the housing. The disc and the hub, movable in this clearance space, can be engaged with the nose of the disc motor and, once this engagement has taken place, the disc is suitably spaced between the upper and lower surfaces of the cartridge case. . In this configuration, the hub springs out of the casing of the cartridge case. This arrangement therefore does not require that the cartridge be moved into the disk drive so that the hub is properly positioned on the disk motor, or that the disk motor is moved to engage the hub of the cartridge, both actions being able to generate a lost space once the disk drive is in

actual operation.

  Additionally, with respect to the cartridge and disk drive interface, the cartridge has a plurality of protruding protrusions that may engage internal mechanisms of the disk drive to ensure proper operation of the cartridge. the disk drive once the cartridge is reviewed in the mechanism for receiving it. This interface helps to limit the number of moving parts requested in the disk drive, allows the parts to perform multiple functions and helps to achieve the overall dimensions of 45.72 mm. For example, the screw of the

  cartridge has a tab that protrudes. The commitment

  The pawl with the multi-function joystick on the disk drive causes the disk to be repositioned inside the cartridge and helps to lock the tab and thus the cartridge on the disk drive while the disk drive is running. . In addition, the protrusions on the cartridge help position the multi-function joystick. The projections also provide a small mechanism for the cartridge to be ejected from the disk drive and also ensuring that the operator lever is in the complete rest position once the cartridge has been removed from the disk. the disk drive. The cartridge has a rail that protects the tab and protrusions from damage. Another function of this rail is to prevent the cartridge from being improperly inserted into the disk drive. It should be noted that the cartridge screw and the cartridge design are designed for other multiple functions. When the cartridge is removed from the disk drive and transported, for example, the hub is pushed against a spacer to place the disk in a stationary position relative to the housing so as to avoid rattling of the disk in the cartridge. A spring mechanism within the cartridge recalls the cartridge screw to a position such that the hub abuts the spacer to perform the anti-rattling function. The spacer is also an element for the pivotal mounting of the cartridge door. Another aspect that allows the disk drive

  to be small, efficient and to satisfy the clutter

  45.72 mm as well as smaller dimensions, relates to the design of the boom of the arm which allows the exact positioning of the heads so that, when the cartridge is inserted into the unit, the ramp and the heads simultaneously enter the envelope of the cartridge case, before the hub of the cartridge comes to rest on the disk motor. This arrangement allows the disk drive to be of a shorter length, and it also allows heads, parked in a stationary position loaded on the ramps, to be positioned as close to the disk as possible. This allows, for example, the head to be tangent to more tracks, which results in greater

recording efficiency.

  The above design further allows the entire disk drive to be slid and accommodated in a slot provided on a portable computing device.

Or other.

  The small footprint indicated above is further achieved by the multi-function joystick located within the disk drive and in the immediate vicinity of the cartridge receiving mechanism. The joystick performs the functions of (1) engaging the cartridge and locking the cartridge in position, (2) positioning the hub and disk so that the hub engages the nose of the disk motor and the disk is suitably positioned within the cartridge, (3) ejecting the cartridge when desired, (4) releasing the head arm assembly so that they can be unloaded from the ramp onto the disk for operations read / write, (5) pivoting a toggle link to lock the handle in the home position, and (6) allowing a mechanism to lock the handle in a complete working position. The disk drive cover, itself, allows for a small footprint design in that it includes appropriate latching elements to engage the disk drive socket, and only requires a minimum number of fasteners for fastening

on the base of the disk drive.

  In addition to the foregoing, the cartridge further includes a spiral inner wall for aiding and directing air within the cartridge to exit the cartridge through a filter. The cartridge further has recesses formed in the interior surface of the housing for housing the heads and the ramp before the heads

are loaded on the disk.

  Figures 19 to 39 show an advantageous embodiment of a disk unit 300 and a removable cartridge 450 for this unit. An aspect

  essential aspect of this embodiment is a reduction in

  the overall thickness of the cartridge. This is accomplished, in one aspect, by eliminating the two protrusions 212 and 214 and the peripheral rail 216, and by recessing the tab 208 of the embodiment of Fig. 10.

* that the leg is hollowed out in the preferred embodiment of

  An element such as a lever, pivotally mounted to the disk unit (described in detail below), must selectively rise in the recessed portion of the cartridge.

and engage the paw.

  The screw 400 of the cartridge (FIG. 32), to which the tab 402 is attached, will first be described, followed by successive explanations relating to the disk unit, of the manner in which the tab is engaged by the unit. disk, placing a cartridge in the disk drive and specific characteristics of the cartridge itself

called.

  Referring to Figure 32, a cartridge screw 400 and a tab 402 are shown in plan. The screw 400 of the cartridge has threads 405 very similar to those of the screw 206 of the cartridge described above. The movement of the tab 402 causes the screw 400 to rotate, which causes the engagement of the threads 405 of the screw 400 with the threads 408, arranged in a complementary manner (FIG. 31), of the bottom portion of the casing 420 of the cartridge, thus causing a displacement of the screw 400 towards the outside of the cartridge. The movement of the disk assembly with the movement of the screw 400 causes the disk assembly to be mounted on a motor of the disk drive. Therefore, the screw 400 of the cartridge operates in a manner similar to that of the screw 206 of the cartridge of the first form of

production.

  It should be noted that Figure 31 is a view

  inside of the bottom portion of the housing 420 of a car-

  450. A recessed portion 410 is shown extending outwardly from the inner central opening 412 of the housing 420. Since FIG. 31 is an interior view, the recessed portion 410 would in fact come out of the plane of the drawing on which Figure 31 appears, that is to say that

  the recess is formed on the outside of the housing 420.

  In this embodiment, a screw 400 fits into an opening 412, the tab 402 being received in the recess 410. Therefore, unlike the first advantageous embodiment, the tab 402 does not come out of the outer surface of the bottom portion of the cartridge 450 (Figure 38) but, in an initial position, it is held at or below the outer surface of the bottom portion of the cartridge 450. Therefore, as explained more fully below, there is a need for a lever or other mechanism emerging from the disk drive 300 to enter the cartridge recess 410.

450 to engage the tab 402.

  Referring to Figure 19, it shows a sectional view of an alternative embodiment of a disk unit 300. This sectional view illustrates the voice coil motor 380, a gate arm assembly 375, 330-332 positioning mechanisms, ejection switching mechanisms 320 and other parts. The cartridge screw 400 of FIG. 32 is superimposed on the disk drive 300 to illustrate how the recessed tab 402 is engaged by the disk drive. Figures 19-22 illustrate four successive positions of a multi-function controller 340

  and the effect of this movement of the multi-function controller 340 on the other parts of the disk drive 300.

  The disk unit 300 includes a housing 302 in which are mounted the moving coil motor 380 and the aforementioned head-arm assembly 375. A disk motor 312 is mounted on the bottom surface 304 of the housing 302. The multi-function joystick 310 is formed around the disk motor 312. The motor 312 includes a plurality of magnets 313 for attracting and holding a disk assembly and a shaft nose 314 for centering the disk assembly mounted thereon. A coil 316 is provided on the bottom surface 304 of the housing 302. The coil serves to lock the multi-function controller 310 in its fourth position (see FIG. 22). By moving counter-clockwise around the multi-function joystick 310 from the spool 316, there is an eject switch mechanism 320. This mechanism 320 includes a spring biased release lever 322 and an LED sensor device 323 described below. A cartridge position counter-cam 330 is mounted on a pivot 331 to move and be moved by the multi-function controller 310. The cam 330 has a lug 332 which protrudes upwardly and can be engaged selectively in a groove 430

(FIG. 38) of the cartridge 450.

  An arm push rod 350 mounted on a pivot 351 is also provided for loading and unloading the head arm assembly 375 depending on the position of the multi-function joystick 310. Loading and unloading of the headset assembly 375 takes place substantially in the same manner as described above.

  for the 64 set with headrest arm.

  Referring more particularly to the multi-function joystick 310, this includes both a lever 340 for the user, which protrudes out of the disk unit 300 so as to be moved by the fingers of the user. the user, and a engagement lever 341 (Fig. 23b) which protrudes above a flat surface of the multi-function joystick 310 to engage the leg

  recess 402 of the screw 400 of the cartridge. The commitment lever

  341 is pivotally mounted by a pivot 342 on the handle 310. The lever 341 is mounted on a support element 343 which forcibly raises the lever 341, outside the plane of the joystick 310 with multiple functions, consequently contact with a ramp 346 in the mounting surface 347 of the joystick. This is described in more detail below in

reference to Figures 23-26.

  Figure 19 illustrates the disk unit 300 and the multi-function joystick 310, which is in its first position, where a cartridge is not inserted in the disk drive and the lever 341 is not in contact. with the screw 400

or the tab 402 of the cartridge.

  With reference to FIG. 20, the multi-function joystick 310 has been turned to its second position

  wherein the lever 341 has been moved out of the plane of the multi-function joystick 310 (Fig. 24b) to engage the recessed tab 402 of the screw 400 of the cartridge.

  The initial movement of the multi-function joystick 310 is caused by the insertion of a cartridge 450 into the disk drive 300. A groove 430 (Fig. 38) is provided in the outer surface of the cartridge, which groove may engage the lug 332 of the counter cam 330 of the cartridge positioning (Figure 19). When the cartridge 450 is pushed into the disk drive 300, the groove 430 engages the stud 332 and pushes it in the direction of an arrow A from the position shown in Fig. 19 to that of Fig. 20. A movement of the joystick 310

  in this way the lever 340 rotates for the use

  the position of the disk unit 300 in a position approximately flush with the outside of the disk drive 300 in Fig. 19 to the position shown in Fig. 20 in which it is emerging from the disk drive. From this advantageous projecting position, a user can move the lever to

  in third and fourth positions, described below.

  below, which results in mounting the disk assembly on the disk motor, locking the cartridge in an appropriate position and releasing the assembly 375 with a header arm. The cartridge ejection switch mechanism 320 and the arm push rod 350 are not subject to any shock under the effect of the movement of the handle from the first position shown in FIG.

  second position shown in Figure 20. We must

  take that the four positions of the lever 340 for the use

  sator, in FIGS. 19, 20, 21 and 22, are substantially the same as the four positions of the first form of

  realization (Figures 3a, 3b, 3c and 3d).

  Referring to Figure 21, the disk drive

  300 is shown while the multi-function joystick 310 is in the third position. In this position

  the engaging lever 341 remains engaged with the recessed tab 402 (FIG. 25b) and is pushed to the right, rotating the screw 400 of the cartridge (downwards from the perspective of FIG. 21), which, as a result, brings the disk assembly inside the cartridge to

  moved to a position to lodge

  propriety on the disc shaft nose 314 and to be attracted by the drive motor 313 magnet magnets. In this position, the screw of the cartridge has been completely turned. In the third position, the handle 310 also exerts a force on the cartridge positioning counter 330 so that the lug 332 is moved to a final locking position of the cartridge, thereby locking the cartridge into the cartridge. disk drive. The manner in which the pin 332 engages the cartridge 450 is described in more detail below. Another aspect of the joystick 310 in the third position is that a cam surface 354 (FIG. 21) of the multi-function joystick 310 comes into initial contact with a finger 355 of the arm push rod 350. Another aspect of the multi-function joystick 310 in the third position is a spring 368 which exerts a restoring force in the direction of an arrow C. In the first, second and third positions, this spring is not compressed. Continued movement of the joystick 310 to the fourth position causes compression of the spring 368 which, as a result, applies a force on the lever 310, urging it in the direction of the arrow

  C in the same way as for the first form of

  tion. Coil 316 and Switch Mechanism 320

  ejection is not subject to any impact as a result of

  lever 310 in the third position (Figure 21). With reference to FIG. 22, the disk unit 300 is shown while the joystick 310 has functions

  multiples is in the fourth position. In this position

  The screw 400 of the cartridge is held in the fully rotated position (FIG. 26b). As the handle 310 is pushed into the fourth position, the lever 341 passes over the top of the tab 402. Therefore, in this position, the cartridge screw is locked in the fully rotated position, the assembly disc being set up appropriately on the engine

  312 so that this assembly can be rotated by the motor 312.

  An outer peripheral portion 311 of the multi-function joystick 310 continues to bias the cam follower 330 as on

Figure 21.

  Turning the handle 310 to the fourth position causes the cam surface 354 to rotate the arm push rod 350 in the direction of an arrow D (see FIGS. 21 and 22), causing the link 358 to be pulled away from the headgear assembly 375, thereby releasing the headgear assembly 375 so that it can be loaded onto a disk inside the cartridge. The loading and unloading of the headset assembly 375 takes place in the same manner as the

  loading and unloading of the assembly 64 with a support arm

  head of the first embodiment.

  The spring 368 (FIG. 22) is compressed and therefore exerts on the lever 310 a force tending to move it towards the third position. However, the handle 310 is held in the fourth position by a coil 316 which projects from the bottom surface 304 of the housing 302 to contact a beveled lower surface 318 of the multi-function joystick 310. The surface is tapered to ensure the application of a constant force against the handle 310 so that it is held securely in the fourth position, and to minimize undesirable vibration on the cam follower 330 against positioning the cartridge and the link In addition, the joystick being in the fourth position, a sensor notch 325 is aligned with the

  323 mounting sensor-transmitter. The LED sensor 323 assembly operates as follows. A cartridge 450 comprises a piece of reflective material 481 (FIG. 38) positioned so that, when the cartridge 450 is correctly put in place, the reflective material is placed at

  Thus, when the joystick 410 is in the fourth position and the cartridge 450 is correctly positioned within the disk unit 300, a signal emitted by the LED is provided. amounts to

  Tically across sensor notch 325, is reflected by reflector 481 of the cartridge and returns to the sensor, indicating that handle 310 and cartridge 450 are both in the correct position. If notch 325

  is not positioned as shown in Figure 22,

  top of the sensor-transmitter assembly, the disk motor does not

can not be turned on.

  The ejection of the cartridge is achieved by the application of a thrust on the lever 321 ejection, this

  which causes the positioning of an element 324 of inter-

  rupturing above the sensor-transmitter assembly (eg LED) 323, and in the immediate vicinity of sensor notch 325, interrupting the path of a positioning signal

  from the transmitter to the cartridge and back to the sensor.

  The interruption of the positioning signal causes the generation and propagation of an interrupt signal to the electronic control circuits of the disk drive which comprise, in part, a transmission and power cable 301, which cuts the power supply of the motor 312 of the disk and de-energizes the coil 316 so that its plunger retracts to the bottom surface 304 of the housing 302, rotating, by rotation, the handle 310 to the third

  position (FIG. 21) under the restoring force of spring 368.

  From the third position, the user can act on the lever 310 via a lever 340 and can push back to the first position through the second position. This action of the joystick causes the cartridge to be ejected from the disk drive. Note that the disk drive does not function unless both (1) the joystick 310 is placed

  that the notch is above the sensor-mount 323

  transmitter, and (2) the interrupt element 324 is placed from

  so as not to obstruct the sensor-transmitter assembly.

  While the handle 310 is moved from the third position (FIG. 21) to the second position (FIG. 20), a cam surface 336 bears against a finger 337 of the cam follower 330 positioning the cartridge. Referring to Fig. 19, continued movement of the handle toward the first position causes the cam surface 336 to apply a force to the finger 337 which rotates the cam follower 330 to position the cartridge in the direction of an arrow E, causing the pin 332 to exert a force on the cartridge 450 in a direction opposite to that of the arrow A of FIG. 20, causing the ejection of the cartridge 450

of the disk drive 300.

  With reference to FIGS. 23a, 23b to 26a, 26b,

  the interaction between the tab 402 and the joystick 310 to function

  tions will be illustrated in each of the first,

  second, third and fourth positions of the joystick 310.

  Referring more particularly to FIG. 23a, multi-function joystick 310 includes lever 341, pivot 342, and support 343. Joystick 310 also includes sensor notch 325 as well as cam surfaces 336 and 354 and a recess 359 to allow movement of the arm push rod 350 (see FIG. 22). The screw 400 of the cartridge and the tab 402 are represented

  positioned above the multi-function joystick 310

  ple. With reference to FIG. 23b, the lever 310 being in the first position, the support 343 is in a recess 345 below the surface 347. In this position, the lever 341 is generally in the plane of

the joystick 310.

  Referring to Figs. 24a and 24b, while the joystick 310 is facing the second position, the support 343 is advanced against a ramp surface 346, causing the lever 341 to rise above the plane of the joystick 310 to multi-function so that it can engage the tab 402. With reference to Figures 25a and 25b, the further rotation of the joystick 310 causes the tab 402 to be moved as shown, which rotates the screw of the cartridge and, as a result, causes the cartridge screw to move downwardly, bringing the disk assembly into operative cooperation with the disk motor. As stated previously, in the third position, the hub of

  the cartridge is applied to the disk engine.

  Referring to Figs. 26a and 26b, the handle is shown in the fourth position. In this

  position, the screw 400 of the cartridge and the bracket 402

  substantially the same positions as those shown on

  25a, 25b, the lever 41 and in particular the elem-

  348 which protrudes from it being slipped over the

  tab 402 to hold it in place. While the

  348 slides on the leg 402, this action allows the joystick 310 to release the arm push rod and thus release the head arm assembly. Otherwise, the operation of the screw 400 of the cartridge is similar to

  that of the first embodiment of the invention.

  Referring to Figures 27 to 30, the introduction

  of a cartridge 450 in the disk drive 300 is

  ted. Referring to Fig. 27, when a cartridge is initially inserted, the handle 310 is in the first position and a groove 430 in the outer surface of the bottom of the cartridge 450 receives the lug 332 of the counter cam 330 of the cartridge. Continued movement of the cartridge 450 into the disk unit 300 causes the cartridge to exert a force on the pin 332 through the groove 430, causing the pin to rotate in the direction of the arrow A of FIG. 20, described above, thus causing the lever 340 for the user to be pushed out of the disk unit while the joystick 310 is moved from the first to the

second position.

  The groove 430 comprises first and second sections. The first section 431 extends rearwardly from the front edge of the cartridge, and is then approximately diagonal, being formed at a predefined angle from the outer leading edge of the cartridge 450, and is configured from way that the pin 332 pivoting can move. The second portion of the groove 432 has a curved shape and is then used in the locking operation of the cartridge. The effect of this groove 430 groove, which is itself directed transversely to the direction of insertion of the cartridge into the disk unit, is that the groove or groove 430 biases the pin 332 so that it moves transversely to the insertion direction of the cartridge towards the inside of the disk unit. It should be noted that, although the particular shape of the groove 430 is advantageous, other shapes of grooves or grooves which are oriented transversely to the direction of insertion of the cartridge into the disk drive, may

to be realized.

  The cartridge of Figure 27 also illustrates recesses 455 for the fingers in the cartridge 450. These recesses 455 are provided to facilitate the taking of the

450 cartridge by the user.

  Referring to Fig. 28, the disk drive 300, in which the cartridge 450 is inserted and the joystick 310 is in the second position, is shown. The position of the parts inside the disk unit 300 is as shown in FIG. 20. It can be seen from the view of FIG. 28 that the pin 332 is in the groove 430 of the cartridge 450 while the latter is fully inserted. The lug 332 has traversed the diagonal portion 431 of the groove 430 and is about to enter the curved section 432. The lever 341 is in initial contact with the lug 402 in the second position of the joystick 310 as

  described with reference to FIG.

  Referring to Fig. 29, the handle 310 has been moved from the second to the third position. A movement of the joystick in this manner causes the tab 402 to be moved substantially by the lever 341 and further causes a rotation of the counter-cam 330 for positioning the cartridge so that the pin 332 moves inside. the curved section 432 of the groove 430, thereby securely locking the cartridge 450 and the disk unit 300. The function of the other parts of the disk unit is as

  described with reference to FIG.

  Referring to Figure 30, the disk drive 300 is shown with the cartridge 450 set up in

  this unit and the joystick 310 in the fourth position.

  In this position, the lever 341 and in particular its element 348 have moved above the tab 402.

  position of the counter-cam 330 of positioning the car-

  key is essentially the same as that in Figure 29.

  the arm push rod 350 is brought into a position which releases the assembly 375 with a header arm. The spring 368 is compressed and the coil 316 protrudes so that it bears against the beveled surface 318, recalling and holding the handle 310 in the fourth position. These features are described in more detail in

  reference to Figure 2, above.

  It can be seen in FIGS. 27-30 that when the handle is moved from the fourth to the first position through the third and second positions, the lug 332 first traverses the curved section 432 of the groove 430 to the first position. this lug 332 comes into contact with an inner wall of the groove 430 in its diagonal portion 431. Continuing the movement of the handle 310 by a force applied by a user to the lever 340 rotates the positioning counter-cam 330 of the cartridge, thus causing the pin 332 to exert a force on the section

  diagonal 431 of the groove 430. This force causes the ejection

  the cartridge 450 of the disk drive 300 so that a position not identical to that shown in FIG. 27 is reached, whereby the user can enter the cartridge 450 with the recesses 455 for the fingers or other surface grooves and can remove the 450 cartridge

of the disk drive 300.

  Figures 31 and 32 have been described

  sibly above, both independently and with reference to Figures 19 to 30. It should also be noted that the arrangement consisting of the key 250, the groove 252, the tongue 254 and the groove 256 of the first embodiment (FIG. 12b), intended to limit the movement of the screw 206 inside the cartridge 200, is also

  provided in the embodiment variant 450, in a zone 449.

  Referring to Fig. 33, a plan view of the multi-function joystick 310 is shown. The lever 341 is mounted by means of a pivot 342 on the multi-function joystick 310. The support 343 is made in one piece with the lever 341. An element 348 is shown

  protruding from the lever 341 as in Figures 19-30.

  Several pieces are provided along the periphery of the multi-function controller 310. They include the lever 340 for the user who stands out

  the disk unit 300 to be operated by a user.

  Progressing in the opposite direction to the needles

  of a watch, there is a notch 325 for sensor-

  transmitter. Continuing in the same direction, there are the cam surfaces 336 and 354. A spring groove 367 is

  disposed circumferentially in the handle 310 for housing the spring 368 described with reference to Figure 22, among other figures. The beveled surface 318 with which the coil 316 is in contact is also shown.

  Referring to Figure 34, an isolated view of the

  cam follower 330 for positioning the cartridge, counter

  cam on which is mounted the positioning pin 332 of

  the cartridge, projecting upward, is shown. A spring 338 is provided between the pivot 331 and the finger 337.

  The spring is retained at one end in the cam follower 330 in the immediate vicinity of the finger 337 and, at the other end, in a sleeve 333 which pivots on the pivot 331. A rotation

  of the handle 30 biases the finger 337 and the counter-cam 330 towards the sleeve 333, compressing the spring 338.

  This provides a toggle function that is very similar to that of the toggle link 100 described with reference to FIG. 3a. The toggle function appears as the joystick is moved between the positions of FIGS. 19 and 20. The cam follower 330 thus becomes a link rod.

  multi-function knee pad.

  Referring to Figures 35-39, a cartridge 450 for use with the disk drive 300 is illustrated. The cartridge 450 is substantially similar to the cartridge 200

  of the first embodiment. In the description

  following, the similarities between the cartridges 200 and 450 are not described, to a large extent, to avoid unnecessary repetition. However, the differences between the cartridge 200 of the first embodiment and the cartridge 450 of the second embodiment (variant)

are shown below.

  With reference to Figure 35, a perspective view of

  tive of the cartridge 450 is shown. Cartridge 450 contains a door 460 that functions in the same way as

  gate 272 of the first embodiment described above.

  above with reference to FIGS. 9 and 11. Gate 460 is

  located on a front outside 447 of the cartridge 450.

  This same side has the groove 430 described above, through which one can see the beginning of the diagonal section 431 of the groove 430. An opening 457 is also provided in the outer front side 447 of the cartridge 450 and it fills the same function as the opening 290, described above with reference to FIG. 11. A pivotally mounted shaft, which is connected to the door 460 and which is described above with reference to FIG. 11, is accessible through opening 457. The recesses 455 for the fingers are also visible on the perpsective view

of figure 35.

  Referring to Fig. 36, a plan view of the cartridge 450 is shown. A space is provided on the top surface 452 of the cartridge 450 for attaching a label and for surface features such as a plurality of parallel grooves 453 that provide an improved surface for gripping the cartridge 450 and provide a decoration. Referring to Fig. 37a, a view of the front outer side 447 of the cartridge 450 is shown. This

  view shows the door 460, the groove 430 with the beginning

  its diagonal section 431, and opening 457 to

  through which the door opening axis 460 is actuated.

  Fig. 37b shows a rear outer side of the cartridge 450. Figs. 37c and 37d show the sides

  outside right and left of the cartridge.

  Referring to Fig. 38, a bottom view of the cartridge 450 is shown. It can be seen that the groove 430 extends from the outer front 447, rearward, through the bottom surface 456 of the cartridge 450. A first section 431 of the groove or groove 430 extends substantially towards the back then diagonally from the outer front 447 to a point where it joins the section 432 of curved shape. This groove 430 is disposed substantially transversely to the direction of insertion of the cartridge into the disk unit 300. It should be noted that in another embodiment, the curved section of the groove could also be substantially straight, but wider to allow the curved movement of the protruding lug upwards, provided that the beginning and end portions are substantially the same. The

  Operation of the groove 430 and the locating pin 332 is described above with reference to Figs. 27-30.

  The screw 400 of the cartridge is disposed around a hub 429 having a central hole 428 for receiving the nose 314 of a disk motor. The tab 402 of the screw 400 of the cartridge is positioned in a recess 410 of the bottom surface 456. The threads 405 of the screw 400 of the cartridge engage the threads 408 of the cartridge 450 and allow a rotation of the screw 400 of the cartridge. the cartridge by a

  The finger recesses 455 are also evident in the perspective view of FIG. 38. A deflector 481 is mounted to be placed above the sensor-transmitter assembly 423 (FIGS.

  22) when the cartridge 450 is properly positioned in the disk drive 300. Tabs 454 hold the top 452 and the four sides (shown in the figures

  37a-37d) on the bottom 456 of the cartridge 450.

  Referring to Fig. 39, an inside view of the bottom portion 470 of the cartridge 450 is shown in more detail. Several spiral fins 471 are arranged on the inner surface of this bottom portion 470. The fins 471 cause the air inside the cartridge 450 to move towards the center thereof, after which the air passes through a filter (not shown) and is then recycled by the disk to its outer diameter. An arrangement of fins similar to that shown in FIG. 39 is described in US Pat.

5,218,503.

  It goes without saying that many changes can be made to the described disk drive and

  shown without departing from the scope of the invention.

Claims (30)

  A disk drive, characterized in that it comprises means (86) for receiving a removable cartridge (200) containing a disk assembly, a motor means (54) for rotating a disk assembly, and means for selectively and functionally engaging a disk assembly in a removable cartridge to facilitate mounting of said disk assembly to the motor means for rotation thereof. Disk drive according to claim 1, characterized in that it further comprises a housing (202, 204) and handle means (58) having an element (70) projecting from the housing and intended for be grasped by a user, a movement of the joystick bringing said   means of engagement to come in engagement with a disk set.   Disk drive according to Claim 2, characterized in that the engagement means are mounted on said joystick means.   4. Disk drive according to claim 2, characterized in that it further comprises means (206) for mounting a disk assembly on an engine, a   movement of the lever means causing said engagement means   the disk assembly within a removable cartridge so that said mounting means can act on the disk assembly for mounting on a disk assembly. said motor means.   Disk drive according to claim 4, characterized in that the mounting means comprise magnets for attracting a disk assembly in a removable cartridge to said motor means and to maintain   fix on the latter the disc set.   Disk drive according to claim 1, characterized in that the engagement means are for selectively penetrating a recess defined in a removable cartridge to cause the repositioning of the disk assembly within a housing. removable cartridge. Disk drive, characterized in that it comprises a housing (32, 34), means (86) for receiving a removable cartridge (200), containing a disk assembly, in a revised position, a means for motor (54) for rotating the disk assembly, means for penetrating a recess of a removable cartridge into said received position for engaging a mounting mechanism of the disk assembly of a removable cartridge; which facilitates mounting of the disk assembly on the motor means to rotate, and handle means (58) having an actuating member (70) projecting from the housing to be taken by a user , a movement of the lever means causing said projecting means to engage the disk assembly assembly mechanism of a   removable cartridge in said received position.   Disk drive according to Claim 7, characterized in that the projecting means is mounted on the medium to handle.   9. Disk unit according to claim 7, characterized in that it further comprises means (228) for mounting a disk assembly on the motor means, a movement of the lever means bringing said projecting means moving a disk assembly within a removable cartridge so that the mounting means acts upon it for mounting the disk assembly to the medium with motor.   10. Disk unit according to claim 9, characterized in that the mounting means comprise magnets. A disk drive, characterized in that it comprises means (86) for receiving a removable cartridge (200) containing a disk assembly, a motor means (54) for rotating a disk assembly, and means for advancing through a recess of a removable cartridge to engage a tab (208) which releases a disk assembly into a removable cartridge for mounting on said motor means. 12. Disk drive, characterized in that it comprises a housing (32, 34), means (86) for receiving a removable cartridge enclosing a disk assembly, in a receiving position; motor means (54) for rotating a disk assembly, means for advancing in a recess of a removable cartridge in said receiving position to engage a mechanism (228) for mounting the disk assembly which facilitates mounting of a disk assembly on the motor means to rotate, and handle means (58) having a member (70) projecting from the housing to be picked up by a user, a movement of the lever means causing said projecting means to engage the mounting mechanism of the disk assembly which positions a disk assembly for mounting on said motor means. 13. Disk drive according to claim 12, characterized in that it further comprises means for locking a removable cartridge in said receiving position.   14. Disk unit for receiving a removable cartridge, characterized in that it comprises a housing (32, 34), a motor (54), means (86) for receiving a removable cartridge (200) in a position receiving means, a handle (58) which includes means for positioning a carrier within a removable cartridge on said motor to rotate, and means (323) for generating and receiving signals mounted on the housing to determine when the controller is in a   particular position with respect to the housing.   Disk drive according to claim 14, characterized in that it further comprises means for stopping the rotation of the motor means, which means respond to an indication provided by said signal generating and receiving means, indicating that the joystick is not placed in a predefined position or when a removable cartridge is in the receiving position. Disk drive according to claim 14, characterized in that the signal generating and receiving means further comprises means (323) for determining when the removable cartridge is   not placed in a predefined position.   Disk drive according to claim 16,   characterized in that the determining means comprises   in addition, means to stop the rotation of the   motor means and ejecting (321) a removable cartridge.   18. A system of a disk drive (300) and a removable cartridge (450), characterized in that it comprises a removable cartridge (450) enclosing a disk assembly and having a recess (430) in a surface exterior of this cartridge, recess through which a functional engagement of the disk assembly is realized, a disk unit (300) having means (332) for penetrating said recess of the removable cartridge for   functionally engaging the disk assembly. 19. The system of claim 18, wherein   characterized in that a movement of the disk assembly causes the disk assembly to be positioned for mounting on a means (54)   rotating said disk assembly.   20. The system of claim 18, wherein   characterized in that it further comprises joystick means (310) having a member (340) projecting from a housing of the disk unit to be picked up by a user, a movement of the joystick causing said means ( 332) to come in   functional engagement with the disk assembly in the removable cartridge. 21. The system of claim 20, wherein   characterized in that the means (332) penetrating the recess   is mounted on said handle means.   22. A system as claimed in claim 20, characterized in that further movement of the joystick causes said penetration means (332) into the recess to displace the disk assembly to a position in which said disks is positioned for mounting on a means (54) for rotating the disk assembly. 23. Disk drive, characterized in that it comprises means (86) for receiving a cartridge (450), means (332, 430) for positioning a cartridge received in the housing, a means for motor (54) for rotating a disk assembly within the cartridge, a handle (310) formed around the motor means and having a cam surface arranged along a periphery thereof which is in communication with the cartridge positioning means, a movement of the lever causing the cam surface to exert a force on said cartridge positioning means, causing said cartridge positioning means to engage a cartridge received in said unit and to position the   cartridge in a receiving position.   24. Disk drive according to claim 23, characterized in that the positioning means of the cartridge comprise a lug (332) for engaging in a groove (430) for positioning the cartridge located   in an outer surface of the cartridge.   25. Disk drive, characterized in that it comprises a motor means (54) for rotating a   disk assembly, and means for selectively engaging   a mechanism (228) for mounting a disk assembly of a removable cartridge for mounting the assembly to disk on the motor medium.   Disk drive, characterized in that it comprises means (86) for receiving a removable cartridge (450) enclosing a disk assembly, and means for selectively and functionally engaging a disk assembly in a removable cartridge to cause the repositioning of the disk assembly to   inside the removable cartridge.   Disk drive according to Claim 26, characterized in that the engagement means are intended to selectively penetrate a recess defined in a removable cartridge in order to cause the repositioning of   the disk assembly within the removable cartridge.   28. A system of a disk drive of a removable cartridge, characterized in that said disk unit (300) comprises means (86) for receiving a cartridge   (450) inside a case, the disk drive   also carrying means for positioning the cartridge, motor means (54) for rotating a disk assembly in the cartridge, the disk unit having a handle (310) formed around the motor means and having a cam surface arranged along a periphery of this handle, which is in communication with   the means for positioning the cartridge, said cartridge   key having a groove (430), a movement of the lever causing the cam surface to exert a force on the means   positioning of the cartridge, which means of positioning   of the cartridge are thus caused to engage in the groove of the cartridge and to position said cartridge in a reception position.   29. The system of claim 28, characterized   risen in that the throat of the cartridge is disposed trans-   towards the insertion direction of the cartridge into the disk drive.   Disk drive according to Claim 1, characterized in that it has a bulk of , 72 mm.