US 5,346,156 AGranted

Magnetic-tape cassette apparatus comprising a deck for magnetic-tape cassettes reversing mechanism

AssigneeU.S. Philips Corporation

InventorsNorbert Kunze, Georg Weber

Life of this patent

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Abstract

A magnetic-tape cassette apparatus having a deck for magnetic-tape cassettes with a reel drive mechanism for transporting a tape with a first and an opposite, second tape transport direction. The change-over from the first tape transport direction to the opposite second tape transport direction is affected by a switching mechanism which switches the reel-drive mechanism between a play mode in the forward direction and a play mode in the reverse direction. The switching mechanism includes a switching lever moveable from a first position for the first playing direction to a second position for the opposite second play direction. The switching lever is moved by a pair of switching wheels, whose teeth are engageable with associated teeth of adjacent flywheels for changing over the switching lever from the predetermined position for one playing direction to the predetermined position for the opposite other playing direction by actuating elements provided on the switching wheels.

Claims11

Dependent claims

A magnetic tape cassette apparatus, comprising:

a) reel drive means including a pair of reel discs, said reel drive means being switchable from a first operating mode for driving a reel disc in a first tape transport direction and a second operating mode for driving the other reel disc in a second, opposite direction of rotation;
b) a pair of toothed drive wheels;
c) switching means for switching the reel drive means between the first and second operating modes, said switching means including a switching lever pivotable between the switching lever position in which the switching lever cooperates with one of said reel discs and a second switching lever position in which the switching lever cooperates with the other of said reel discs;
and
d) a pair of rotatable switching wheels each rotatable about an axis of rotation, said switching wheels each including (i) teeth which are engageable with and driven by the teeth of a respective toothed drive wheel and (ii) an actuating element protruding axially from the switching wheel which engages the switching lever upon rotation of the switching wheel for moving said switching lever from one switching lever position to the other switching lever position.

2 more elements

A magnetic-tape cassette apparatus as claimed in 2, further comprising a starting lever cooperable with said switching lever and having a stop edge, and wherein the switching wheels comprise stop ridges which cooperate with the stop edge of the starting lever in such a manner that the stop ridges are blocked by the stop edge so that said toothless segments face the drive wheel teeth in a corresponding operating mode, the starting lever being actuatable to selectively unblock the stop ridge of a switching wheel to allow rotation thereof.

Dependencies are inferred from the claim text.

Facts

Application: 07/941,465Filed 8 Sep 1992
Priority: DE 413040313 Sep 1991
Granted: 13 Sep 1994
Term ends: Not estimatedThe source records don’t support an estimate.

Classification3 codes

G11B 15/442
Speed-changing arrangements; Reversing arrangements; Drive transfer means therefor: control thereof
G11B 15/29
Through rollers driving by frictional contact with the record carrier, e.g. capstan; Multiple arrangements of capstans or drums coupled to means…:…
G11B
Information storage based on relative movement between record carrier and transducer

Family

No related US applications are recorded in the indexed filing history.

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