Mechanism for damping tape vibrations in a magnetic tape recorder

Mechanisms for damping tape vibrations in a magnetic tape recorder having a tape drive, take-up and take-off reels with buffer chambers allocated thereto, a tape capstan located between the buffer chambers and adjacent a magnetic write/read head, the tape capstan being reversible in terms of a transport direction of the magnetic tape, said mechanism substantially eliminating deformations of the magnetic tape in the region of a transducing surface of the magnetic head, comprising:

• a damping element having a plurality of nozzles connected to a common feed
• channel and being under a predetermined pressurization;
• said plurality of nozzles regularly spaced along a line proceeding transversely relative to the transport direction of the magnetic tape and having symmetrically increasing diameters from ends of said line to a center of said line, said diameters of said nozzles being small in comparison to said spacing of said nozzles from one another;
• an air jet output of said plurality of nozzles impinging said magnetic tape in the region of a leading edge of the transducing surface of the magnetic head and the air jet output directed by the damping element so as to produce a slight force component in said transport direction of said magnetic tape at an angle of inclination relative to the perpendicular to a surface of the magnetic tape, said angle of inclination being less than 10.degree. and greater than 0.degree..

Mechanism for damping tape vibrations in a magnetic tape recorder having a tape drive, take-up and take-off reels with buffer chambers allocated thereto, a tape capstans located between the buffer chambers and adjacent a magnetic write/read head, the tape capstan being reversible in terms of a transport direction of the magnetic tape, said mechanism substantially eliminating deformations of the magnetic tape in the region of a transducing surface of the magnetic head, said tape capstan located after said magnetic head as referenced to a forward direction of tape transport direction, and said write/read head with said transducing surface having outwardly situated leading ledges adjacent, respectively, to a write gap and to a read gap, whereby said transducing surface has a portion set slightly back between said leading ledges and between said gaps, said mechanism comprising:

• damping element fashioned in the form of a pneumatically acting jet comb, said damping element located opposite said leading ledge located adjacent to said read gap and being slightly inclined in the tape transport direction for a reverse running, said damping element having a plurality of nozzles connected to a common feed channel and being under a predetermined pressurization;
• said plurality of nozzles regularly spaced along a line proceeding transversely relative to the transport direction of a magnetic tape and having symmetrically increasing diameters from ends of said line to a center of said line, said diameters of said nozzles being small in comparison to said spacing of said nozzles from one another;
• an air jet output of said plurality of nozzles impinging said magnetic tape immediately after said magnetic tape transverses said leading ledge located adjacent to said read gap of said transducing surface of said magnetic head and said air jet output directed by said damping element so as to produce a slight force component in said transport direction of said magnetic tape for reverse running at an angle of inclination relative to the perpendicular to a surface of the magnetic tape said angle of inclination being less than 10.degree. and greater than 0.degree..