CN1137836A - System for information storage and/or reproduction, cassette for information storage, apparatus for information storage and/or reproduction on/from tape in cassette - Google Patents
System for information storage and/or reproduction, cassette for information storage, apparatus for information storage and/or reproduction on/from tape in cassette Download PDFInfo
- Publication number
- CN1137836A CN1137836A CN95191108A CN95191108A CN1137836A CN 1137836 A CN1137836 A CN 1137836A CN 95191108 A CN95191108 A CN 95191108A CN 95191108 A CN95191108 A CN 95191108A CN 1137836 A CN1137836 A CN 1137836A
- Authority
- CN
- China
- Prior art keywords
- band
- guide member
- retainer
- tape drum
- shell
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000003860 storage Methods 0.000 title claims abstract description 9
- 230000001172 regenerating effect Effects 0.000 claims description 10
- 230000003287 optical effect Effects 0.000 abstract description 5
- 230000033001 locomotion Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000012856 packing Methods 0.000 description 3
- 238000012937 correction Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
- G11B23/02—Containers; Storing means both adapted to cooperate with the recording or reproducing means
- G11B23/04—Magazines; Cassettes for webs or filaments
- G11B23/08—Magazines; Cassettes for webs or filaments for housing webs or filaments having two distinct ends
- G11B23/087—Magazines; Cassettes for webs or filaments for housing webs or filaments having two distinct ends using two different reels or cores
- G11B23/08707—Details
- G11B23/08757—Guiding means
- G11B23/08771—Pressure pads
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
- G11B15/60—Guiding record carrier
- G11B15/62—Maintaining desired spacing between record carrier and head
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/002—Recording, reproducing or erasing systems characterised by the shape or form of the carrier
- G11B7/003—Recording, reproducing or erasing systems characterised by the shape or form of the carrier with webs, filaments or wires, e.g. belts, spooled tapes or films of quasi-infinite extent
Landscapes
- Optical Record Carriers And Manufacture Thereof (AREA)
- Automatic Tape Cassette Changers (AREA)
Abstract
System for information storage and/or reproduction on/from a tape (13) comprising a cassette (10) and an apparatus (20). The cassette accommodates a tape (13) and a tape guide (30). The apparatus (20) has an optical head (21) for cooperation with the tape (13). The tape guide (30) positions the tape (13) at the location of cooperation with the head (21) and has a first stop (33) adapted to cooperate with a second stop (23) in the apparatus (20) in order to position the tape guide.
Description
The present invention relates to include a tape drum and a device be used to store and/or the system of regenerating information, its tape drum has the shell of accommodating belt and band guide member, its device comprises and the read/write head of band cooperation with storage and/or regenerating information, and the band guide member is placed near the position that combines with this read/write head of band, and is tightened up so that contact with this band when accurately locating this band when being with.
This system is by known among European patent EP-B-0206392.This system known per comprises a tape drum, and it has two tape winders and a rotating band guide member.Band is wrapped on the strip winding box and is guided by the band guide member.This band guide member is placed near the window in the tape drum, and supports this band at this position of window place in the belt edge away from this window.This window makes this band become accessible for the read/write head of the device that is used for this band is read or write.A shortcoming of this known system is a band with respect to the position of read/write head of device is not accurately to limit.
An object of the present invention is to improve a system in beginning paragraph qualification type, making band is exactly determined with the band position of read/write head cooperation part mutually with respect to read/write head.
Therefore the feature that has of system according to the present invention is: this band guide member has first retainer, and this device has second retainer, and this second retainer is cooperated to locate first retainer mutually with this first retainer.The advantage of these steps is that the position of this band guide member is no longer determined by the shell of this tape drum, and is antithesis directly to be determined by second retainer of device.The result is, shell for example can utilize that the common technology of injection molding and so on need not high precision manufacturing outside the tape drum.Band is just determined with respect to the position of read/write head by the precision of band guide member and second retainer in device with respect to the position of read/write head.And because these steps, band no longer is subjected to the influence of tape drum casing deformation with respect to the position of read/write head.
The invention still further relates to a kind of tape drum that is used for information stores, this tape drum comprises the shell that has a window, this shell holds a band and a band guide member, this is with removable by this window, and close this window placement of this band guide member and be tightened up when accurately locating this band at band contacts with this band.
Tape drum according to system of the present invention is characterised in that: this band guide member has first retainer, can contact with this first retainer from the outside of shell.This step makes this tape drum be positioned by the engagement of this first retainer and second retainer in this device.This has just guaranteed that this band guide member under any circumstance can both correctly locate.The position of this shell is not most important.
An embodiment of this tape drum is characterised in that: this band guide member is installed in the shell, to make it removable.This step has reduced the possibility that this band guide member is pushed away by forcing in this shell by second retainer in the device.In addition, present embodiment makes it to provide the retainer of separation to locate shell, and this has just ensured the more stable position of this shell in this device, makes the phenomenon that resembles shell vibration and so on reduce to minimum.
An embodiment of this tape drum is characterised in that: this band guide member is cooperated mutually with the elastomeric element in being contained in shell, and these parts are pressed on band guide member and the shell.Utilization this elastomeric element in this tape drum, this band guide member can be pressed on second retainer of this device by its first retainer.The result is that the equipment that this device need not given security and be contacted between two retainers is so that the designs simplification of device.In addition, this elastomeric element makes the band guide member be pushed into a fixed position in tape drum when tape drum is not in device.So just prevented the disorderly rolling of this band guide member in tape drum, and can be enclosed in the opening in the tape drum, entered tape drum to prevent dust and foul in the first retainer position.
An embodiment of this tape drum is characterised in that: this tape drum comprises several tape winders, can be from first side drive of this shell and can be from this first side contacts, first retainer.The result of these steps is, the process that tape drum inserts this device can be simplified by the mode that moves this tape drum on perpendicular to the direction of first side.Utilize present embodiment, the loading mechanism of device can be simplified, and the result makes cost low.
This tape drum embodiment is characterised in that: the second side place at shell is provided with a window, and can contact first retainer from this second side.The advantage that this embodiment had is, second retainer of device can be placed near magnetic head, and this makes it to realize easily this read/write head and second retainer accurate location each other.Another advantage is, this first retainer can be placed on the same side as the band guide member on guide member surface, and this band guide member surface is positioned at band a position of matching with read/write head.So guidance surface be with respect to can realizing simply in the exact position of first retainer of band on the guide member, for example realize by forming two parts in half a module same.
The feature of an embodiment of this tape drum is: this band guide member is to contact with the side of being with away from window.The advantage of this embodiment is that this band guide member does not form with the optical surface of band and contacts.The result is, can provide anti-friction layer with a side of the contacted band of this band guide member, and it need not to satisfy any optics requirement.This anti-friction layer thereby can be optimized to dwindling with the friction of this band guide member and reducing the wearing and tearing aspect.Another advantage of this embodiment is that the surface of this first retainer and this guide member can be formed by single surface.This can utilize simple means, for example reaches first retainer and guide member surface correct location toward each other by this surface is polished.
The invention still further relates to one be used for information stores in a tape drum with on and/or from this with on the device of regenerating information, its device comprises a read/write head, with this band cooperation with storage and/or regenerating information.
The device that is used for this system according to the present invention is characterised in that: near this read/write head place, this device has second retainer of first retainer that is used to locate tape drum.
An embodiment of this device is characterised in that: this device comprises a drive unit (actuator), is used for moving second retainer with respect to read/write head.The advantage that this embodiment has is that the position of band guide member can be proofreaied and correct by this drive unit apart from the skew of ideal position.These skews are measured as utilizing read/write head itself.This makes the allowance (for example caused allowance in this band guide member is produced) of band guide member size aspect to be with guide member to proofread and correct respectively at each.The possibility of this correction also makes has very not strict requirement to second retainer with respect to the position of read/write head, and this makes that the production of device is cheap.
Fig. 1 is a view profile that is used for the tape drum of native system according to of the present invention;
Fig. 2 is their cross-section side views under the condition of the device cooperation of tape and system thereof according to the present invention;
Fig. 3 be among the system according to the invention embodiment tape drum and the device between the cooperation detailed floor map;
Fig. 4 is a detailed side view shown in Figure 3.
It should be noted that schematically what the embodiment of expression and diagram thereof all provided with optional scale, always not the same.
Fig. 1 is the cross sectional view that is used for the tape drum 10 of this system according to the present invention.This tape has shell 11, and a window 15 is arranged in first side 14.Comprise two tape winders 18 and 19 and band guide members 30 in the shell.Be with 13 to be wrapped in to revolve on the axle 16 and to form tape winder 19, extend past band guide member 30 also reaches tape winder 18.Be with 13 can move through window 15 through the tape winder 18 of overdriving.
Fig. 2 is the sectional view according to system of the present invention.This system comprises the device 20 of tape drum 10.The device 20 comprise in order to with 13 the cooperation read/write heads 21, be used for the storage and/or the regeneration of information.Band guide member 30 places near this with 13 positions of cooperating mutually with read/write head 21 in tape drum 10.When being with 13 to be tightened up, the guidance surface 32 of band guide member 30 be with 13 contact, the accurate location of being with assurance.When being with 13 to be moved through band guide member 30, between this band guide member and band, can form an air cushion layer as thin as a wafer, and contact takes place through this air cushion.
Utilize read/write head 21, light beam 22 is focused and forms a luminous point 40 being with on 13, so that from being with on 13 sense information or information being write thereon.This luminous point 40 with carry out scanning motions with the perpendicular direction of 13 latitude direction 43.This luminous point always is focused on the focal line 41 perpendicular to the optical axis 45 of read/write head 21.This scanning motion must make read/write head 21 and incompatible in the time interval of a scanning motion with 13 distance soon.Yet, be with 13 to extend for guaranteeing that luminous point 40 is focused on to be with on 13, must be noted that focal line 41 is parallel to.Be to realize this point, at least one α angle between optical axis 45 that should be by being adjusted in read/write head 21 and the guidance surface 32 and will be with guide member 30 accurately to navigate to a predetermined value.For this purpose, band guide member 30 has first retainer 33, and device has second retainer 23 that is used to locate this first retainer 33.For allowing this location, this first retainer 33 can be from the outside contact of the shell 11 of tape drum 10.
For guaranteeing the suitable contact between first retainer 33 and second retainer 23, this band guide member 30 is installed in the shell 11 so that can be moved.This makes and capablely is applied on the shell 11 and is not with guide member 30 with respect to retainer 23 displacements.This definite location that makes that guide member 30 is with in realization in the strong point 24 of the shell 11 of tape drum 10 being compressed into device of movably designing.This just provides the stable position of shell 11.
Because band guide member 30 constitutes the part of tape drum 10, the advantage that obtains is: do not have the parts of device 20 and be with 13 Mechanical Contact take place.The result makes the process of packing into and drawing off of tape drum 20 faster and make with 13 possibilities of damaging and reduce, thereby obtains more firm system.And total system only needs a band guide member, also reduces under the condition that band transmits very fast for 13 friction force even this makes.And, keeping the location of realizing during with 13 quick transmission by band guide member 30, thus in special reading mode, can determine the position on 13, thus can find as quick as thought with the message segment on 13.
In first side 12 of shell 11, tape winder 18 can contact, so that mesh with the axle 27 that revolves that installs 20.This revolves axle 27 can drive tape winder 18.In addition, tape winder 18 can have support ring 18a, is supported on the dish 39 of device 20, to locate this tape winder.This first retainer 33 can also be from 12 contacts of first side.The result is, by can be simply with its charging apparatus 20 perpendicular to first side 12 moves tape drum 10.During packing into tape winder 18 with revolve axle 27 engagements and by dish 29 location, second retainer 23 is located by first retainer 33.Because read/write head 21 and do not have Mechanical Contact with the cooperation between 13, so when packing tape 10 into, read/write head 21 or be with 13 not need to move.The result is, when loading mechanism is simplified, thereby makes cheap.
Fig. 3 is a sectional view, the cooperation among the embodiment of expression system according to the invention between first retainer 33 and second retainer 23.Window 15 is to be placed on second side 14 of shell 11 in the present embodiment.In this kind scheme, first retainer 33 of band guide member 30 can contact through window 15.In the present embodiment, this band guide member 30 is configured non-rotatable parts, guidance surface 32 is arranged with steering tape 13 at it over against window one side, and this band guide member 30 has flange 35 in the two edges with 13.These flanges 35 have also formed first retainer 33.Tape drum 10 also comprises spring 17, and it is driving pressure zone guide member 30 on the direction of window 15.Second retainer 23 has arm 23a, and they withstand first retainer 33 and place the pressure in contrast of its direction and spring 17 in device 20 read/write head 21 and tape drum 10 engagement process.Utilize this second retainer 23, this first retainer 33 is accurately located with respect to read/write head 21.Because second retainer 23 is to place near read/write head 21, thereby realizes that second retainer 23 is simple with respect to the accurate location of read/write head 21.Because first retainer 33 and guiding face 32 are positioned the same side with guide member 30, so in the position of matching with read/write head 21, this is with 13 can be accurately positioned by plain mode.
In the present embodiment, band guide member 30 is to contact with the side away from window 15 with 13.The result is, do not have Mechanical Contact between with 13 optical surface and band guide member 30.Therefore, being with 13 1 sides to provide anti-friction layer and need not to satisfy any optics requirement away from window 15.This anti-friction layer can be therefore optimised, to reduce with the friction of being with guide member 30 and to dwindle wearing and tearing.30 low frictions are important through the band guide member with 13 high-speed motions in realization.Scheme has advantage and is like this, is with 13 can move on to tape winder 18 from tape winder 19 fast, and vice versa.Thereby realize for the short access time of given message segment on 13.
Fig. 4 is a sectional drawing of taking from one of the arm 23a position details same as shown in Figure 3 of Fig. 3.It is clear to illustrate the situation how second retainer 23 and first retainer mesh, and this situation is to be formed by flange 35, be with 13 contactless.
Fig. 1 also illustrates device 20 and has a drive unit 25, is used for moving second retainer 23.For example this kind drive unit is a Piexoelectric actuator.This drive unit 25 makes the position energy Be Controlled of band guide member 30 with respect to read/write head 21.This control provides band guide member 30 or has installed the correction that the size in 20 is drifted about.
Remove outside the embodiment described here, within the scope of the present invention various other embodiments can be arranged.For example, the location of band guide member 30 can be extended several degree of freedom.Utilize band guide member 30, also positioning belt 13 dynamically, so that be with 13 to be read out and to write fashionable at this, this luminous point 40 always remains focused on to be with on 13.
Claims (9)
1. be used to store and/or a kind of system of regenerating information, comprise tape drum (10) and device (20);
This tape drum has shell (11), its accommodating belt (13) and band guide member (30);
This device comprises read/write head (21), cooperates with band, so that storage and/or regenerating information; And
This band guide member is close to the position that this band matches with this read/write head and places, and contacts with this band when being with when being tightened up, so that positioning belt accurately;
It is characterized in that:
This band guide member (30) has first retainer (33), and
This device has second retainer (23), and it matches to locate first retainer with first retainer.
2. tape drum (10) that is used for canned data,
This tape drum has the shell (11) of band window (15), this shell accommodating belt (13) and band guide member (30);
This is with removable through window; And
When this band was tightened up, the band guide member was placed near window and with band and contacts with this band of accurate location,
It is characterized in that:
This band guide member (30) has first retainer (33), and it can be from the outside contact of shell (11).
3. tape drum as claimed in claim 2 (10) is characterized in that: band guide member (30) is placed within the shell (11) so that removable.
4. tape drum as claimed in claim 3 (10) is characterized in that: this band guide member (30) elastomeric element (17) interior with being placed on shell (11) cooperates, and these parts are pressed on this band guide member and the shell.
5. the tape drum one of any as claim 2-4 is characterized in that:
This tape drum (10) comprises a plurality of tape winders (18,19), and they can be driven in first side (12) of this shell (11); And
First retainer (33) can contact from first side (12).
6. the tape drum one of any as claim 2-5 is characterized in that:
Window (15) is arranged on second side (14) of this shell (11), and
First retainer (33) can be from second side contacts.
7. the tape drum one of any as claim 2-6 is characterized in that: band guide member (30) contacts with a side away from the band (13) of window (15).
8. be used for a device (20) at storage of the band (13) in tape drum (10) and/or regenerating information,
This device comprises a read/write head (21), cooperates so that store and/or regenerating information with band (13);
It is characterized in that:
Near this read/write head (21), this device (20) has second retainer (23), is used to locate first retainer (33) of tape drum (10).
9. device as claimed in claim 8 is characterized in that, this device comprises a drive unit (25), is used for respect to read/write head (21) and moves second retainer (23).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP94202667 | 1994-09-16 | ||
| NL94202667.5 | 1994-09-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1137836A true CN1137836A (en) | 1996-12-11 |
Family
ID=8217200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN95191108A Pending CN1137836A (en) | 1994-09-16 | 1995-09-11 | System for information storage and/or reproduction, cassette for information storage, apparatus for information storage and/or reproduction on/from tape in cassette |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP0729631A1 (en) |
| KR (1) | KR960706158A (en) |
| CN (1) | CN1137836A (en) |
| TW (1) | TW331003B (en) |
| WO (1) | WO1996008818A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6690639B2 (en) * | 2001-10-19 | 2004-02-10 | Eastman Kodak Company | Optical tape transport system using focus stabilizer |
| US8036088B1 (en) * | 2010-06-14 | 2011-10-11 | Oracle International Corporation | Optical tape drive movable planarizer subsystem and method for minimizing damage to an optical pickup unit |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL7907293A (en) * | 1979-10-01 | 1981-04-03 | Bogey Bv | DEVICE FOR CONTROLLING THE MOVEMENT OF AN OBJECT. |
| US4524925A (en) * | 1984-02-17 | 1985-06-25 | Drexler Technology Corporation | Optical data tape cartridge having wide angle read/write surface |
-
1995
- 1995-09-11 WO PCT/IB1995/000750 patent/WO1996008818A1/en not_active Application Discontinuation
- 1995-09-11 EP EP95929195A patent/EP0729631A1/en not_active Withdrawn
- 1995-09-11 CN CN95191108A patent/CN1137836A/en active Pending
- 1995-09-11 KR KR1019960702539A patent/KR960706158A/en not_active Application Discontinuation
- 1995-09-14 TW TW084109641A patent/TW331003B/en active
Also Published As
| Publication number | Publication date |
|---|---|
| TW331003B (en) | 1998-05-01 |
| EP0729631A1 (en) | 1996-09-04 |
| KR960706158A (en) | 1996-11-08 |
| WO1996008818A1 (en) | 1996-03-21 |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) |