WO1982003721A1 - Lockout device for tape cassette - Google Patents
Lockout device for tape cassette Download PDFInfo
- Publication number
- WO1982003721A1 WO1982003721A1 PCT/US1982/000439 US8200439W WO8203721A1 WO 1982003721 A1 WO1982003721 A1 WO 1982003721A1 US 8200439 W US8200439 W US 8200439W WO 8203721 A1 WO8203721 A1 WO 8203721A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cassette
- tape
- lock
- recording
- recess
- Prior art date
Links
- 238000010276 construction Methods 0.000 description 2
- KKEBXNMGHUCPEZ-UHFFFAOYSA-N 4-phenyl-1-(2-sulfanylethyl)imidazolidin-2-one Chemical compound N1C(=O)N(CCS)CC1C1=CC=CC=C1 KKEBXNMGHUCPEZ-UHFFFAOYSA-N 0.000 description 1
- 241000237983 Trochidae Species 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
Classifications
-
- 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
- G11B23/08714—Auxiliary features
Definitions
- a means whereby a captive, movable member is placed in the cassette shell aperture is described herein.
- This member can be manipulated by the user to effectively block the access of the record lock-out lever, or allow it to penetrate the cassette shell.
- the owner of the cassette can prevent the accidental erasure or re-recording of the cassette tape when the movable member is in the retracted position, but can deliberately allow re-recording by positioning the movable member to the extended position.
- One method of achieving the aforementioned action is to place a rotary cam or gate device in the aperture whose axis of rotation is at right angles to the plane of the cartridge. In position (a), shown in Fig.
- the periphery of the cam effectively blocks the aperture, thus allowing recording and re-recording.
- position (b) shown in Fig. 5y the cut-away portion of the cam allows the penetration of the record lock-out lever for the player, thus preventing erasure or re-recording of the tape.
- U.S. Patent No. 3,980,256 shows a shiftable tab for selectively blocking the opening formed by the removal of the conventional knockout tab used to provide a means for determining the presence of predetermined material on the tape carried by the cassette.
- Applicant's invention provides an improved captive member for performing this functon in a more efficient manner than that of the reference.
- the other references merely show the state of the art of tape cassettes.
- Another object of the invention is to provide an improved apparatus for preventing re-recording of a tape cassette.
- Another object of the invention is to provide an improved tape cassette that is simple in construction, economical to manufacture, and simple and efficient to use.
- Fig. 1 is an isometric view of a tape cassette according to the invention.
- Fig. 2 is an isometric view of a tape cassette shown in Fig. 1 flipped over.
- Fig. 3 is an enlarged partial perspective view of one corner of the cassette showing the rotary disabling member according to the invention moved to the disabling portion.
- Fig. 4 is a perspective view of the rotary cam disabling member.
- Fig. 5 is a view similar to Fig. 3 showing the rotary cam disabling member in non-disabling position.
- the tape cassette utilizing improvements on the present invention is broadly shown and denoted by the Numeral 10.
- the improvements can be applied to a Phillips type cassette like that shown in U. S. Patent No. 3,980,256. It can also be used in a variety of different designs of cassettes of which the Phillips cassette is but one example.
- the cassette 10 shown has a case 11 made up of a top shell 12 and a bottom shell 14. Shells 12 and 14 are held in spaced relation to each other by webs 15 which are integral with the shells 12 and 14 and provide a space for the hubs 22 to freely rotate between the shells.
- the magnetic tape 16 is supported on the hubs in a conventional manner and is exposed through the opening 19 to a transducer on the tape recorder along the front of the cassette.
- the rotary cam 30 is supported in the reeesses 26.
- the rotary lock-out cam 30 are generally in the form of a cylinder having approximately one half of the cylinder cut away providing a half cylindrical surface and a flat surface 32, therein providing a recess for the disabling element on the tape machine to enter as best shown in Fig. 5. It will be seen that when the rotary lock-out member 30 is rotated to the position shown in Fig. 3 the record lock ⁇ out lever of the tape player will be held from entering the recess thus preventing erasure of the tape or re-recording of the tape.
- the embodiment shown is the preferred embodiment of this invention but other forms of a moveable lock-out cam can be used.
- the rotary cam lock-out members each have a hub 25 on each end and one of the hubs 25 has a screwdriver slot 27 in it which extends through the shell and can be entered by a suitable screwdriver or coin for rotating it.
Landscapes
- Packaging Of Annular Or Rod-Shaped Articles, Wearing Apparel, Cassettes, Or The Like (AREA)
Abstract
A tape cassette (10) having a rotary lock-out cam (30) in the form of a cylinder which has half cut away providing a recess (32) for the disabling member of a tape machine to enter. The rotary cam (30) can be rotated so that the remaining half of the cylindrical surface engages the disabling member so that the disabling member is held in disabling position. The disabling member can be thus manipulated by the user to effectively block the access to the record lock-out lever when desired or to allow the lock-out lever to penetrate the cassette shell. The owner of the cassette can thus prevent the accidental erasure or re-recording of the cassette tape when the movable member is in the retracted position but can deliberately allow re-recording by positioning the movable member to the extended position
Description
LOCKOUT DEVICE FOR TAPE CASSETTE
GENERAL DESCRIPTION OF INVENTION A means whereby a captive, movable member is placed in the cassette shell aperture is described herein. This member can be manipulated by the user to effectively block the access of the record lock-out lever, or allow it to penetrate the cassette shell. Thus, the owner of the cassette can prevent the accidental erasure or re-recording of the cassette tape when the movable member is in the retracted position, but can deliberately allow re-recording by positioning the movable member to the extended position. One method of achieving the aforementioned action is to place a rotary cam or gate device in the aperture whose axis of rotation is at right angles to the plane of the cartridge. In position (a), shown in Fig. 3, the periphery of the cam effectively blocks the aperture, thus allowing recording and re-recording. In position (b), shown in Fig. 5y the cut-away portion of the cam allows the penetration of the record lock-out lever for the player, thus preventing erasure or re-recording of the tape.
REFERENCE TO PRIOR ART
Applicant is aware of the following United States prior art.
U.S. Patent No. 3,980,256 shows a shiftable tab for selectively blocking the opening formed by the removal of the conventional knockout tab used to provide a means for determining the presence of predetermined material on the tape carried by the cassette. Applicant's invention provides an improved captive member for performing this functon in a more efficient manner than that of the reference. The other references merely show the state of the art of tape cassettes.
SUBST
OBJECTS OF THE INVENTION
It is an object of the invention to provide an improved tape cassette.
Another object of the invention is to provide an improved apparatus for preventing re-recording of a tape cassette.
Another object of the invention is to provide an improved tape cassette that is simple in construction, economical to manufacture, and simple and efficient to use.
With the above and other objects in view, the present invention consists of the combination and arrangement of parts hereinafter more fully described, illustrated in the accompanying drawing and more particularly pointed out in the appended claims, it being understood that changes may be made in the form, size, proportions and minor detail of construction without departing from the spirit or sacrificing any of the advantages of the invention.
GENERAL DESCRIPTION OF THE DRAWINGS
Fig. 1 is an isometric view of a tape cassette according to the invention.
Fig. 2 is an isometric view of a tape cassette shown in Fig. 1 flipped over.
Fig. 3 is an enlarged partial perspective view of one corner of the cassette showing the rotary disabling member according to the invention moved to the disabling portion.
Fig. 4 is a perspective view of the rotary cam disabling member.
Fig. 5 is a view similar to Fig. 3 showing the rotary cam disabling member in non-disabling position.
OMPI
DETAILED DESCRIPTION OF THE DRAWINGS The tape cassette utilizing improvements on the present invention is broadly shown and denoted by the Numeral 10. The improvements can be applied to a Phillips type cassette like that shown in U. S. Patent No. 3,980,256. It can also be used in a variety of different designs of cassettes of which the Phillips cassette is but one example. The cassette 10 shown has a case 11 made up of a top shell 12 and a bottom shell 14. Shells 12 and 14 are held in spaced relation to each other by webs 15 which are integral with the shells 12 and 14 and provide a space for the hubs 22 to freely rotate between the shells.
The magnetic tape 16 is supported on the hubs in a conventional manner and is exposed through the opening 19 to a transducer on the tape recorder along the front of the cassette.
The rotary cam 30 is supported in the reeesses 26. The rotary lock-out cam 30 are generally in the form of a cylinder having approximately one half of the cylinder cut away providing a half cylindrical surface and a flat surface 32, therein providing a recess for the disabling element on the tape machine to enter as best shown in Fig. 5. It will be seen that when the rotary lock-out member 30 is rotated to the position shown in Fig. 3 the record lock¬ out lever of the tape player will be held from entering the recess thus preventing erasure of the tape or re-recording of the tape.
The embodiment shown is the preferred embodiment of this invention but other forms of a moveable lock-out cam can be used. The rotary cam lock-out members each have a hub 25 on each end and one of the hubs 25 has a screwdriver slot 27 in it which extends through the shell and can be entered by a suitable screwdriver or coin for rotating it.
SUBSTITUTE SHEE
When the cylindrical periphery 31 of the cam lock-out member 30 is rotated to the position shown in Fig. 5 the cut away side of the rotary cam lock-out member will face outwardly and the flat surface 32 will be down in the recess 26 and allow the record lock-out lever of the tape player to penetrate the recess 26 and allow the player to operate.
Thus, when the rotary lockout cam 30 is rotated to the position shown in Fig. 3, re-recording cannot take place, but when the rotary lockout cam 30 is rotated to the position shown in Fig. 5, the tape can be re-recorded.
The foregoing specification sets forth the invention in its preferred, practical forms but the structure shown is capable of modification within a range of equivalents without departing from the invention which is to be understood is broadly novel as is commensurate with the appended claims.
"g JRE SUBSTITUTE SHEET ι?o
Claims
1. In a tape cassette: a cassette housing formed of a pair of shells with each shell having a pair of spaced opposite sides, the shells being disposed in operative position adjacent to each other with respective sides thereof in alignment with each other; and means for interconnecting the shells when the latter are in operative position to form said housing, a web on and extending along each side of said housing, holding said shells in spaced relation to each other, a movable captive member disposed in the cassette shell aperture, said member being adapted to be manipulated by the user to effectively block the access of the record lock-out lever, or allow said lever to penetrate the cassette shell, whereby the owner can prevent the accidental erasure or re- recording of the tape when the movable member is in the retracted position, but can deliberately allow re-recording by positioning the movable member to the extended position, and selectively manipulate the captive member to block access of said lock-out lever.
2. In combination, a tape cassette and a lock-out device are preventing actuation of the tape player by an actuating member on the tape player, said cassette having a recess therein, a movable member in said recess supported on said cassette, said movable member having a surface adapted to selectively move into the path of said actuating member and to move out of the
SUBSTITUTE SHEET
) path of said actuating member whereby said recorder is prevented from recording the tape in said cassette or selectively permitted to record.
3. The combination of Claim 2, wherein said lock-out device is a rotatable cam and said surface is in the form of a part of a cylinder adapted to be engaged by said actuating member and said rotatable cam has a recess therein adapted to receive the said actuating member to permit the actuating member to penetrate the recess in said cassette whereby said tape player may be permitted or selectively prevented from recording on said magnetic tape in said cassette.
4. The combination recited in Claim 3 wherein said cam is rotatable on an axis perpendicular to the direction of travel of said tape.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/253,701 US4399481A (en) | 1981-04-13 | 1981-04-13 | Lockout device for tape cassette |
US253701810413 | 1981-04-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1982003721A1 true WO1982003721A1 (en) | 1982-10-28 |
Family
ID=22961361
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US1982/000439 WO1982003721A1 (en) | 1981-04-13 | 1982-04-09 | Lockout device for tape cassette |
Country Status (4)
Country | Link |
---|---|
US (1) | US4399481A (en) |
EP (1) | EP0076307A4 (en) |
JP (1) | JPS58500732A (en) |
WO (1) | WO1982003721A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2745657A1 (en) * | 1996-03-04 | 1997-09-05 | Manera Charles | Movable tab for video cassette overwrite protection |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6319976Y2 (en) * | 1981-06-04 | 1988-06-03 | ||
JPS6047186U (en) * | 1983-09-09 | 1985-04-03 | ティーディーケイ株式会社 | magnetic tape cartridge |
JPS6129472A (en) * | 1984-07-21 | 1986-02-10 | Sony Corp | Magnetic tape cassette |
US5184255A (en) * | 1987-01-16 | 1993-02-02 | Shape Inc. | Video tape cassette with a reusable recording enable/disable slide tab |
JPH056630Y2 (en) * | 1987-09-21 | 1993-02-19 | ||
US5132862A (en) * | 1990-12-03 | 1992-07-21 | Minnesota Mining And Manufacturing Company | Erasure preventing button with a planar surface to control inadvertent sliding for tape cassettes |
US6744595B2 (en) | 2002-01-04 | 2004-06-01 | International Business Machines Corporation | Portable data storage cartridge encoded multi-position mechanical indicator |
US7048220B2 (en) * | 2003-01-08 | 2006-05-23 | International Business Machines Corporation | Stackable rotary device multi-position indicator for portable data storage cartridge |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3686470A (en) * | 1970-11-27 | 1972-08-22 | Ibm | Two shell magnetic tape cartridge |
US4012011A (en) * | 1974-10-21 | 1977-03-15 | Olympus Optical Co., Ltd. | Tape cassette |
US4320422A (en) * | 1980-05-27 | 1982-03-16 | International Business Machines Corporation | File protect sleeve |
US4320421A (en) * | 1980-05-27 | 1982-03-16 | International Business Machines Corporation | Rotary actuator for file protect function |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3826489A (en) * | 1971-01-25 | 1974-07-30 | Data Packaging Corp | Tape cassette |
DE2604172B2 (en) * | 1976-02-04 | 1979-05-17 | Dieter 4000 Duesseldorf Grimm | Compact cassette intended for cassette recorders |
AT356921B (en) * | 1978-07-13 | 1980-06-10 | Philips Nv | MAGNETIC TAPE CASSETTE |
-
1981
- 1981-04-13 US US06/253,701 patent/US4399481A/en not_active Expired - Fee Related
-
1982
- 1982-04-09 JP JP57501474A patent/JPS58500732A/en active Pending
- 1982-04-09 WO PCT/US1982/000439 patent/WO1982003721A1/en not_active Application Discontinuation
- 1982-04-09 EP EP19820901395 patent/EP0076307A4/en not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3686470A (en) * | 1970-11-27 | 1972-08-22 | Ibm | Two shell magnetic tape cartridge |
US4012011A (en) * | 1974-10-21 | 1977-03-15 | Olympus Optical Co., Ltd. | Tape cassette |
US4320422A (en) * | 1980-05-27 | 1982-03-16 | International Business Machines Corporation | File protect sleeve |
US4320421A (en) * | 1980-05-27 | 1982-03-16 | International Business Machines Corporation | Rotary actuator for file protect function |
Non-Patent Citations (1)
Title |
---|
See also references of EP0076307A4 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2745657A1 (en) * | 1996-03-04 | 1997-09-05 | Manera Charles | Movable tab for video cassette overwrite protection |
Also Published As
Publication number | Publication date |
---|---|
EP0076307A4 (en) | 1983-08-03 |
US4399481A (en) | 1983-08-16 |
JPS58500732A (en) | 1983-05-06 |
EP0076307A1 (en) | 1983-04-13 |
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