Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
240 words
A drive mechanism for a tape recorder comprising, a chassis, a magnetic head and a pinch roller movable from an inoperative position to an operative position to place a magnetic tape against said magnetic head, a transmission mechanism driven by a drive source and engageable with a supply and a take-up reel, respectively, for forming operational modes of quick feeding and rewinding, a slidable plate for supporting said transmission mechanism slidably mounted on said chassis and movable from a neutral position to a first operative position whereby said transmission mechanism is placed in engagement with said supply reel and movable from a neutral position to a second operative position whereby said transmission mechanism is in engagement with said take-up reel, spring means for biasing said slidable plate to said neutral position, a linkage mechanism linking a first plunger with said pinch roller when said slidable plate is in said neutral position, a second plunger connected to move said slidable plate from said neutral position to said first operative position, a third plunger connected to move said slidable plate from said neutral position to said second operative position, a locking means connected to said first plunger to be moved from a first position to a second position by said first plunger for locking said slidable plate in its said first and second operative positions against the biasing force provided by said spring means when said second or third plunger is de-energized.
Claim 2
Dependent Claim
240 words
A drive mechanism for a tape recorder comprising, a chassis, a magnetic head and a pinch roller movable from an inoperative position to an operative position to place a magnetic tape against said magnetic head, a transmission mechanism driven by a drive source and engageable with a supply and a take-up reel, respectively, for forming operational modes of quick feeding and rewinding, a slidable plate for supporting said transmission mechanism slidably mounted on said chassis and movable from a neutral position to a first operative position whereby said transmission mechanism is placed in engagement with said supply reel and movable from a neutral position to a second operative position whereby said transmission mechanism is in engagement with said take-up reel, spring means for biasing said slidable plate to said neutral position, a linkage mechanism linking a first plunger with said pinch roller when said slidable plate is in said neutral position, a second plunger connected to move said slidable plate from said neutral position to said first operative position, a third plunger connected to move said slidable plate from said neutral position to said second operative position, a locking means connected to said first plunger to be moved from a first position to a second position by said first plunger for locking said slidable plate in its said first and second operative positions against the biasing force provided by said spring means when said second or third plunger is de-energized.
Claim 3
Dependent Claim
32 words
A drive mechanism for a tape recorder as claimed in claim 1 wherein said transmission mechanism has a pair of transmission gears meshing with each other and respectively rotating in opposite directions.
Claim 4
Dependent Claim
52 words
A drive mechanism for a tape recorder as claimed in claim 1, wherein said linkage mechanism comprises a moving lever which can be changed in position by said slidable plate and a pivotable lever linking said moving lever to move said pinch roller when said slidable plate is in said neutral position.
Claim 5
Dependent Claim
31 words
A drive mechanism for a tape recorder as claimed in claim 1, wherein said slidable plate having two locked portions is locked by said locking means operated by said first plunger.
Claim 6
Dependent Claim
39 words
A drive mechanism for a tape recordein claim 4, wherein said slidable plate having two locked portions comprise two V-shaped notches, and wherein said locking means comprises a slidable lever having a projection for engagement with said V-shaped notches.
Claim 7
Dependent Claim
20 words
A drive mechanism for a tape recorder as claimed in claim 3 wherein said slidable lever moves said pivotal lever.