DK163462B - GEAR WHEELS FOR CLEANING CASSETTE FOR CASSETTE TAPE RECORDERS - Google Patents
GEAR WHEELS FOR CLEANING CASSETTE FOR CASSETTE TAPE RECORDERS Download PDFInfo
- Publication number
- DK163462B DK163462B DK294789A DK294789A DK163462B DK 163462 B DK163462 B DK 163462B DK 294789 A DK294789 A DK 294789A DK 294789 A DK294789 A DK 294789A DK 163462 B DK163462 B DK 163462B
- Authority
- DK
- Denmark
- Prior art keywords
- cassette
- cleaning
- drive
- cleaning element
- engagement
- Prior art date
Links
- 238000004140 cleaning Methods 0.000 title claims description 35
- 230000005540 biological transmission Effects 0.000 claims description 10
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 230000002452 interceptive effect Effects 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/41—Cleaning of heads
-
- 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
- G11B23/049—Cassettes for special applications not otherwise provided for
Description
iin
DK 163462 BDK 163462 B
Opfindelsen angår en rensekassette til kassettebåndoptagere omfattende et renseelement som ved kassettens anbringelse i båndoptageren bringes i anlæg mod dennes tonehoved og som bibringes en styret frem- og 5 tilbagegående rensebevægelse over tonehovedet ved hjælp af en svingarm hvis ene ende er drejelig om en fast akse medens den anden ende er forbundet til renseelementet, idet denne svingarm har et langhul i indgreb med et excenterhoved som gennem en transmissionsindretning 10 er koblet til navorganer udformet til indgreb med hver sin af båndoptagerens spoledrivaksler på en sådan måde at renseelementet ved rotation af en vilkårlig af båndoptagerens spoledrivaksler bibringes den nævnte rensebevægelse, hvor transmissions indretningen omfatter to 15 indbyrdes indgribende drevne tandhjul, hvoraf det ene bærer excenterhovedet.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cassette for recording cassette recorders comprising a cleaning element which, upon insertion of the cassette into the tape recorder, is brought into contact with its head and which is provided with a controlled reciprocating cleaning movement over the head by means of a pivot arm whose end is rotatable about a fixed axis. the other end is connected to the cleaning element, this pivot arm having a long hole engaging an eccentric head which through a transmission device 10 is coupled to secondary organs designed for engagement with each of the tape recorder drive shafts in such a way that the cleaning element by rotating any of the tape recorder drive shaft the said cleaning movement is imparted, the transmission device comprising two mutually engaged driven gears, one of which carries the eccentric head.
Fra DK patent nr. 151.656 kendes en sådan rensekassette, hvor renseelementet er koblet til begge kassettens spoledrev ved hjælp af et tandhjulsarrangement 20 omfattende drivtandhjul i forbindelse med hver sit spoledrev og i indgreb med et mellemhjul, som er forbundet med et excentrisk kamorgan, der påvirker en svingarm, hvormed renseelementet er forbundet.From DK Patent No. 151,656, such a cleaning cassette is known in which the cleaning element is coupled to both coil drives of the cassette by means of a gear arrangement 20 comprising drive sprockets in connection with each coil drive and in engagement with an intermediate wheel which is connected to an eccentric cam member which affects a swing arm to which the cleaning element is connected.
Fra US patentskrift nr. 4 716 485 er det kendt 25 at have to drevne tandhjul i en tandhjulskobling, der giver en rotationsretning for det tandhjul, der er i indgreb med rensearmen, uanset hvilken akseltap der er drivende ved afspilningsfunktionen i en kassettebåndoptager.From US Patent No. 4,716,485, it is known to have two driven gears in a gear coupling which provide a direction of rotation of the gear engaged with the cleaning arm, regardless of the shaft loss driven by the playback function of a cassette recorder.
30 Med disse indretninger opnås en korrekt rense- funktion uafhængigt af rensekassettens orientering ved anbringelse i båndoptageren, men transmissionsindretningerne har den ulempe, at de etablerer en direkte drivforbindelse fra kassettens ene navorgan til det an-3 5 det, således at båndoptagerens motor gennem den virksomme spoledrivaksel skal frembringe ikke blot den for- 2With these devices, a proper cleaning function is obtained regardless of the orientation of the cleaning cartridge when placed in the tape recorder, but the transmission devices have the disadvantage of establishing a direct drive connection from one neighboring device to the other, so that the tape recorder motor through the active coil drive shaft must produce not only the front 2
DK 163462 BDK 163462 B
nødne drivkraft for rensekassetten, men også en tilstrækkelig drivkraft til den uundgåelige medrotation af båndoptagerens anden spoledrivaksel og de med denne forbundne transmissionselementer.necessary driving force for the cleaning cartridge, but also a sufficient driving force for the inevitable co-rotation of the tape recorder's second coil drive shaft and the transmission elements associated with it.
5 Ved en fra EP-patentskrift nr. 0 144 364 kendt udførelse er denne ulempe undgået ved at renseelementet frem- og tilbagegående bevægelse frembringes ved hjælp af en fjederforspændt svingarm, som påvirkes af en med det ene navorgan forbundet kamindretning, medens der 10 mellem en holder for renseelementet og en med det andet navorgan forbundet kamindretning er anbragt en anden svingarm på en. sådan måde, at den anden svingarm, som ikke er direkte forbundet med renseelementets holder, ved indgreb mellem det andet navorgan og båndoptage-15 rens virksomme spoledrivaksel kan bibringe renseele-mentholderen en fremadgående bevægelse imod den på den første svingarm virkende fjederforspænding, medens den tilbagegående bevægelse tilvejebringes alene af fjeder-f o rs pænd ingen.In one embodiment known from EP patent no. 0 144 364, this disadvantage is avoided by the reciprocating movement of the cleaning element being produced by a spring-biased pivot arm, which is actuated by a cam device connected to one of the adjacent members, while between a holder for the cleaning element and a cam device connected to the second adjacent member is arranged another swinging arm on one. such that the second pivot arm, which is not directly connected to the holder of the cleaning element, by engagement between the second actuator and the active coil drive shaft of the tape recorder 15, can give the cleaning element holder a forward movement against the spring bias acting on the first pivot arm, while the receding movement is provided by spring-spring only.
20 Herigennem undgås en direkte drivforbindelse fra kassettens ene navorgan til det andet, men udformningen af transmissionsindretningen med to separate sving-, arme i forbindelse med hver sit spoledrev og en alene på den ene svingarm virkende forspændingsfjeder medfø-25 rer en forholdsvis arbejdskrævende montage og dermed en højere fremstillingspris for rensekassetten.This avoids a direct drive connection from one cartridge to the other, but the design of the transmission device with two separate swing arms connected to each coil drive and a bias spring acting only on one swing arm results in a relatively labor-intensive assembly and thus a higher manufacturing cost for the cleaning cartridge.
Pra dansk patentansøgning nr. 3820/88 kendes ligeledes en rensekassette, hvor medrotation af den anden spoledrivaksel er undgået. Dette opnås ved, at et før-30 ste og et andet drivtandhjul i forbindelse med hvert sit navorgan henholdsvis direkte og over et mellemhjul er koblet til hvert sit af to om en fælles akse, men uafhængigt af hinanden roterbare overføringstandhjul, som over hver sin énvejskoblingsindretning med samme 35 koblingsretning er koblet til samme om· den fælles akse roterbare akseltap, som bærer excenterhovedet.In Danish patent application no. 3820/88, a cleaning cassette is also known in which co-rotation of the second coil drive shaft is avoided. This is achieved by connecting a first and a second drive gear with each of its secondary means, respectively directly and above an intermediate wheel, to each of two about a common axis, but independently rotatable transmission gear wheels, each having its own one-way clutch device. with the same direction of coupling is coupled to the same about the common axis rotatable shaft bearing the eccentric head.
33
DK 163462 BDK 163462 B
Den mekaniske montage af denne kassette er også relativt arbejdskrævende idet tandhjul, énvelskoblinger og svingarm ligger i tre niveauer over hinanden.The mechanical mounting of this cassette is also relatively labor intensive as gears, one-wheel couplings and swingarms are in three levels above each other.
Ved opfindelsen tilsigtes det at frembringe en 5 rensekassette af den angivne art, hvor den nævnte funktionsmæssige fordel ved de sidste to af ovennævnte kendte udførelser bevares samtidig med at der opnås en enklere montering og en mere robust udformning af transmissions indretningen, hvormed der yderligere let-10 tere kan kompenseres for fremstillingstolerancer.It is an object of the invention to provide a cleaning cassette of the type specified, wherein said functional advantage of the last two of the above-mentioned known embodiments is preserved while at the same time achieving a simpler mounting and a more robust design of the transmission device, thereby further facilitating 10 ters can be compensated for manufacturing tolerances.
Dette opnås ifølge opfindelsen ved, at de drevne tandhjul er anbragt til at kunne bruges i énvejskoblingsforbindelse med henholdsvis et første og et andet drivtandhjul, der hver for sig er monteret aksialt for-15 skydeligt på et gevindskåret navorgan, der er i indgreb med en spoledrivaksel, til forskydning mellem stillinger, hvor drivtandhjulet er henholdsvis i indgreb og ude af indgreb med det pågældende drevne tandhjul.This is achieved according to the invention in that the driven sprockets are arranged to be used in one-way clutch connection with a first and a second drive sprocket, respectively, which are mounted axially slidably on a threaded nut which engages a coil drive shaft. , for displacement between positions where the drive gear is engaged and out of engagement with the respective driven gear, respectively.
Opfindelsen forklares i det følgende nærmere un-20 der henvisning til den skematiske tegning hvor, fig. 1 i et planbillede viser et renseelement med tilhørende transmissionsindretning i en udførelsesform for rensekassetten ifølge opfindelsen, fig. 2 er et snitbillede efter linien II-II i 25 fig. 1, fig. 3 viser et gevindskåret navorgan ifølge opfindelsen, fig. 4 et planbillede af et drivtandhjul i fig.BRIEF DESCRIPTION OF THE DRAWINGS The invention is explained in greater detail below with reference to the schematic drawing, in which: FIG. 1 in a plan view shows a cleaning element with associated transmission device in one embodiment of the cleaning cassette according to the invention; 2 is a sectional view taken along line II-II of FIG. 1, FIG. 3 shows a threaded nut according to the invention; FIG. 4 is a plan view of a drive gear in FIG.
4, og 30 fig. 5 et snitbillede af drivtandhjulet efter linien v-v i fig. 4.4, and FIG. 5 is a sectional view of the drive gear along the line v-v of FIG. 4th
I den viste udførelsesform er et renseelement 1 monteret i en holder 2 som på ikke vist måde, fx ved spor i kassettevæggene, er styret til frem- og tilbage-35 gående bevægelse i rensekassetten i den ved pilene 3 viste retning. Ved denne bevægelse udfører det fx som 4In the embodiment shown, a cleaning element 1 is mounted in a holder 2 which is guided in a manner not shown, for example by grooves in the cassette walls, for reciprocating movement in the cleaning cassette in the direction shown by the arrows 3. For example, in this movement it performs as 4
DK 163462 BDK 163462 B
en med rensevæske vædet filtpude udformede renseelement en fejebevægelse hen over båndoptagerens ikke-viste tonehoved, mod hvilket renseelementet holdes i anlæg ved hjælp af en trykfjeder 4.a cleaning element wetted with cleaning fluid, a cleaning element formed a sweeping movement over the tape head's not shown head, against which the cleaning element is held in contact by means of a compression spring 4.
5 Holderen 2 er forbundet med den frie ende af · en svingarm 5, hvis modsatte ende er drejeligt lejret på en i kassetten fastgjort svingtap 6. Svingarmen 5 er udformet med et langhul 7, som er i indgreb med et excenterhoved 8 båret af et drevet tandhjul 14, 10 som er i fast indgreb med et andet drevet tandhjul 16.The holder 2 is connected to the free end of a swing arm 5, the opposite end of which is pivotally mounted on a swing pin 6. The swing arm 5 is formed by a long hole 7 which engages an eccentric head 8 carried by a drive gear 14, 10 which is engaged with another driven gear 16.
Til indgreb med båndoptagerens ikke viste spole-drivaksler har kassetten 2 navorganer 10 og 11 svarende til spoledrevene i en sædvanlig båndkassette.For engagement with the reel drive shafts not shown, the cassette 2 has secondary means 10 and 11 corresponding to the coil drives of a conventional tape cassette.
15 Hvert af navorganerne 10 og 11 er forsynet med et udvendigt gevind til indgreb med tappe anbragt indvendigt i drivtandhjulene 12 og 13 for aksial forskyd ning af disse på navoverganerne 10 og 11, mellem stillinger, hvor drivtandhjulene 12 og 13 er i ind-20 greb med henholdsvis ude af indgreb med de drevne tandhjul 14 og 16.Each of the secondary members 10 and 11 is provided with an external thread for pin engagement located internally of the drive gears 12 and 13 for axial displacement thereof on the hub gears 10 and 11, between positions where the drive gears 12 and 13 are engaged. with out of engagement respectively with the driven gears 14 and 16.
Når et navorgan 10 eller 11 ved kassettens placering i båndoptageren bringes i forbindelse med dennes virksomme spoledrivaksel, vil rotationen af nav-25 organet 10 eller 11 i den sædvanlige rotationsretning vist ved pilen 18 eller 19 forskyde drivtandhjulet 12 eller 13 aksialt til indgreb med det drevne tandhjul 14 eller 16, dermed vil også excen-terhovedet 8 bringes til at rotere således, at svingar-30 men 5 bringes.til at udføre en reciprokerende svingebe-vægelse omkring svingtappen 6, hvorved renseelement-holderen 2 bringes til at udføre den ved pilene 3 angivne frem-og tilbagegående fejebevægelse. Det andet navorgan 11 eller 10 bringes i forbindelse med bån-35 doptagerens ikke virksomme spoledrivaksel således, at navorganet 11 eller 10 står stille. Da det tilsva-When a secondary member 10 or 11 is brought into contact with its effective coil drive shaft at the position of the cassette in the tape recorder, the rotation of the hub member 10 or 11 in the usual direction of rotation shown by arrow 18 or 19 will displace the drive gear 12 or 13 axially to engage the driven gears 14 or 16, thus the eccentric head 8 will also be rotated to cause the pivot 30 to perform a reciprocating pivot movement about the pivot pin 6, thereby causing the cleaning element holder 2 to perform it at the arrows. 3 reciprocating sweep movement. The second secondary member 11 or 10 is brought into contact with the inoperative coil drive shaft of the receiver, so that the secondary member 11 or 10 is stationary. As it equals
Claims (1)
Priority Applications (10)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DK294789A DK163462C (en) | 1989-06-15 | 1989-06-15 | GEAR WHEELS FOR CLEANING CASSETTE FOR CASSETTE TAPE RECORDERS |
| CA002056615A CA2056615A1 (en) | 1989-06-15 | 1990-06-14 | Gear-wheel drive for a cleaning cassette for use in cassette tape recorders |
| AU59645/90A AU635548B2 (en) | 1989-06-15 | 1990-06-14 | A gear-wheel drive for a cleaning cassette for use in cassette tape recorders |
| EP90910601A EP0477292A1 (en) | 1989-06-15 | 1990-06-14 | A gear-wheel drive for a cleaning cassette for use in cassette tape recorders |
| PCT/DK1990/000150 WO1990016064A1 (en) | 1989-06-15 | 1990-06-14 | A gear-wheel drive for a cleaning cassette for use in cassette tape recorders |
| KR1019910701865A KR920702788A (en) | 1989-06-15 | 1990-06-14 | Gear wheel drive for cleaning cassettes for cassette tape recorders |
| JP2509934A JPH04506128A (en) | 1989-06-15 | 1990-06-14 | Gear mechanism for driving cleaning cassettes used in cassette tape recorders |
| DE9090075U DE9090075U1 (en) | 1989-06-15 | 1990-06-14 | |
| NO91914851A NO914851L (en) | 1989-06-15 | 1991-12-10 | GEAR WHEEL FOR CLEANING TAPE FOR USE IN TAPE RECORDERS |
| FI915898A FI915898A0 (en) | 1989-06-15 | 1991-12-13 | KUGGHJULSDRIFT FOER EN RENGOERINGS- KASETT ATT ANVAENDAS I KASETTBANDSPELARE. |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DK294789A DK163462C (en) | 1989-06-15 | 1989-06-15 | GEAR WHEELS FOR CLEANING CASSETTE FOR CASSETTE TAPE RECORDERS |
| DK294789 | 1989-06-15 |
Publications (4)
| Publication Number | Publication Date |
|---|---|
| DK294789D0 DK294789D0 (en) | 1989-06-15 |
| DK294789A DK294789A (en) | 1990-12-16 |
| DK163462B true DK163462B (en) | 1992-03-02 |
| DK163462C DK163462C (en) | 1992-07-20 |
Family
ID=8117458
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DK294789A DK163462C (en) | 1989-06-15 | 1989-06-15 | GEAR WHEELS FOR CLEANING CASSETTE FOR CASSETTE TAPE RECORDERS |
Country Status (9)
| Country | Link |
|---|---|
| EP (1) | EP0477292A1 (en) |
| JP (1) | JPH04506128A (en) |
| KR (1) | KR920702788A (en) |
| AU (1) | AU635548B2 (en) |
| CA (1) | CA2056615A1 (en) |
| DE (1) | DE9090075U1 (en) |
| DK (1) | DK163462C (en) |
| FI (1) | FI915898A0 (en) |
| WO (1) | WO1990016064A1 (en) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4716485A (en) * | 1985-03-29 | 1987-12-29 | Recoton Corporation | Cartridge-shaped cleaning device with a rotable cleaning assembly |
| CH679814A5 (en) * | 1987-09-21 | 1992-04-15 | Manfred Baumann | |
| DK162665C (en) * | 1988-07-08 | 1992-04-13 | Am Kemi As | CLEANING CASSETTE FOR TAPE RECORDERS |
-
1989
- 1989-06-15 DK DK294789A patent/DK163462C/en not_active IP Right Cessation
-
1990
- 1990-06-14 CA CA002056615A patent/CA2056615A1/en not_active Abandoned
- 1990-06-14 WO PCT/DK1990/000150 patent/WO1990016064A1/en not_active Application Discontinuation
- 1990-06-14 AU AU59645/90A patent/AU635548B2/en not_active Expired - Fee Related
- 1990-06-14 EP EP90910601A patent/EP0477292A1/en not_active Withdrawn
- 1990-06-14 DE DE9090075U patent/DE9090075U1/de not_active Expired - Lifetime
- 1990-06-14 KR KR1019910701865A patent/KR920702788A/en not_active Application Discontinuation
- 1990-06-14 JP JP2509934A patent/JPH04506128A/en active Pending
-
1991
- 1991-12-13 FI FI915898A patent/FI915898A0/en not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| DK294789A (en) | 1990-12-16 |
| CA2056615A1 (en) | 1990-12-16 |
| DK163462C (en) | 1992-07-20 |
| JPH04506128A (en) | 1992-10-22 |
| AU635548B2 (en) | 1993-03-25 |
| WO1990016064A1 (en) | 1990-12-27 |
| DE9090075U1 (en) | 1992-01-30 |
| AU5964590A (en) | 1991-01-08 |
| FI915898A0 (en) | 1991-12-13 |
| EP0477292A1 (en) | 1992-04-01 |
| KR920702788A (en) | 1992-10-06 |
| DK294789D0 (en) | 1989-06-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PBP | Patent lapsed |