Cassette loading device having decreased loading effort
AssigneeDeutsche Thomson-Brandt GmbH
InventorsHartmut Schandl, Fritz Weisser
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AssigneeDeutsche Thomson-Brandt GmbH
InventorsHartmut Schandl, Fritz Weisser
Estimating the term…
A cassette loading facility has a guide frame arranged on a chassis in a fixed position. A receiving device is movable between a loading position, in which a cassette can be introduced and removed therefrom, and an operating position. The cassette is positioned on the chassis by means of positioning pins and catch apertures which are formed on the cassette housing. The catch apertures lock the cassette during its transportation between the loading and the operating position and also center it in the operating position. Instead of a fixed arrangement on the drive chassis, the positioning pins are fixed on a first pivoted lever which is pivotally mounted on the cassette receiving device and which can be pivoted into a first position in which the positioning pins release the cassette so that the cassette can be introduced into the cassette receiving device and removed therefrom, and can be pivoted into a second position in which the positioning pins engage with the catch apertures of the cassette whereby the pivoting of the first pivoted lever from the first position into the second position and vice versa is carried out at the loading position of the cassette receiving device. The cassette is locked in the cassette receiving device during its loading or unloading process by the positioning pins engaging with its catch apertures. Upon reaching the operating position, the lower ends of the positioning pins each engage with correspondingly arranged centering apertures in the chassis.
Cassette loading facility for a cassette device for the recording and/or reproduction of information, said cassette loading facility having a guide frame arranged on a cassette drive chassis in a fixed position, a cassette receiving device movable between a loading position in which a cassette can be introduced into the cassette receiving device and removed therefrom and an operating position in which the recording or reproduction of information is carried out, wherein the cassette is positioned on the drive chassis by means of positioning pins and catch apertures, said catch apertures being formed on the cassette housing, and having means using the catch apertures for locking the cassette during its transportation between the loading and the operating position and also for centering it in the operation position, and having means for driving and controlling the cassette receiving device between the loading and the operating positions, characterized in that the positioning pins are fixed on a first pivoted lever which is pivotally mounted on the cassette receiving device and which can be pivoted into a first position in which the positioning pins release the cassette so that the cassette can be introduced into the cassette receiving device and removed therefrom, and can be pivoted into a second position, in which the positioning pins engage with the catch apertures, and that upon reaching the operating position, the lower ends of the positioning pins each engage with a set of correspondingly arranged centering apertures in the drive chassis, a control disk having a first and second drive spigot is provided to the left and right of the loading facility, wherein the control disks are driven in synchronization, and wherein the cassette receiving device is driven with the first and second drive spigots, essentially engaging successively in corresponding guides of the cassette receiving device, and whereby the horizontal and the vertical movement of the cassette receiving device between the loading and the operating position is controlled with the aid of pegs and further guides, a first helical guide groove is disposed on each control disk on the side facing away from the cassette receiving device, and said groove engages with the peg mounted on a vertically movable lifting mechanism of the loading facility, and that a second helical guide groove is disposed on each control disk on the side facing the cassette receiving device, and said groove is provided for engaging with the peg disposed on the cassette receiving device, a third helical guide groove is disposed on the side of the right-hand control disk facing away from the cassette receiving device, and said groove is provided for controlling a cassette drawer flap as well as for controlling a sliding blind which is mounted on the right-hand wall such that is moved horizontally and with which, in the loading position of the cassette receiving device, a tape-end sensor serving for the monitoring of the tape drive is shaded, and that through the shading of this tape-end sensor in the loading position of the cassette receiving device, the motor drive for the cassette receiving device is activated for the loading procedure.
Dependencies are inferred from the claim text.