SU1615796A1 - Tape recorder - Google Patents

Abstract

The invention relates to radio engineering and can be used in devices with tape data carriers. The invention makes it possible to expand the functionality by providing the possibility of independent operation of various receiving and receiving units. The receiver unit of the tape recorder is made in the form of a single removable unit consisting of several pairs of coils 1 independent of each other and installed with the possibility of free rotation around two fixed vertical axes 2, each of which is common to several at least two coils 1 belonging to different pairs of coils. In this case, all the coils 1 from two sides are clamped by the thrust bearings 3, rigidly mounted on the axis 2, attached to the casing 4 of the removable unit. The edges of the edges of the coils 1 are serrated. The tape mechanism of the tape recorder contains drive rollers 9-14, the contact surfaces of which are serrated, with the drive rollers mounted at the edge of the edge of each coil with the possibility of moving before contact with them and kinematically connected with the elements of their movement. 4 il.

Description

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The invention relates to radio engineering and can be used in devices with tape data carriers.

The purpose of the invention is to expand the functionality by providing the possibility of independent modes of operation of various receiving nodes.

Figure 1 shows the construction of a pick-up unit (single removable unit); figure 2 is a removable unit with a drive coils, side view; Fig. 3 shows a single, removable unit with a tape mechanism and a path of movement of a magnetic tape in an inoperative state; 4, also in the operating state.

The tape recorder contains a receiving / receiving unit made as a single removable unit consisting of several pairs of coils 1 independent of each other, installed with the possibility of free around two fixed vertical parallel axes 2, each of which is common to several, at least two coils 1, belonging to different pairs of coils. In this case, all the coils 1 from two sides are clamped by the thrust bearings 3, rigidly mounted on the axis 2, attached to the casing 4 of the removable unit. Coils 1 protrude from three sides of the casing 4, magnetic tapes 5 are wound. They are attached to the pins 1 with transparent lead tape 6. To the casing 4 there are attached sliding guide frames 7. The edges of the ribs of the coils 1 are jagged. Receiving node in the form of a removable unit is installed in the housing 8 of the tape recorder. The tape mechanism of the tape recorder contains drive rollers 9-14, the contact surfaces of which are serrated. They are installed at the edge of each coil 1. The drive shafts 15 and 16 are common to the entire unit and are installed in the cassette case 8 near the path of the magnetic tape 5, consisting of magnetic heads 17, tape clamp 18, pressure rollers 19 and 20, optical sensors 21 tapes in the path, sensors 22 tension tapes. The drive rollers 9-14 are mounted on guides 23, on which elements that drive them 3 movements are located, for example, piezomotors 24. Such piezomotors 25 are mounted on flywheels 26 interacting with drive shafts 15 and 16. The casing 4 of a single removable unit The receiving node depends on which side the magnetic layer is on the magnetic tape 5. If the magnetic layer is facing away from the unit, the casing 4 is removable while it is made monolithic. If the layer is turned inward, then to remove the tape 5 by serving as a sliding guide, it will be framed 7.

The tape recorder works as follows.

In Stop mode, all the mechanisms are in the pressed position. In Play or Record mode after feed

Depending on the track number set, one of the drive shafts, for example 16, moves, the pressure roller 20 presses the tape 5 to the drive shaft 16, while the tape clamp 18 presses the tape 5 to the block of heads 17, the tape tension sensors 22 bend the tape to a certain the angle, the gear drive rollers 11 and 14 are pressed by means of, for example, an electromagnet along the guides 23 to the ribs, the coils 1. The piezo motors 24 drive the rotation of the rollers 1 and 14 and at the same time a pair of coils 1.

When giving the command Stop on video 11

the power supply is stopped, its brake is simultaneously activated and the belt tension sensors 22, the ribbon clamp 18 and the pressure roller 20 move back to their original position. On the drive roller 14

The supply of power sufficiently enough to tension the belt 5 between the receiving-feeding coils 1 temporarily continues. After that, the driving rollers 11 and 14 occupy the initial position.

With the break or the end of the magnetic

when the tape goes clear tape leader 6, optical sensors 21 of the presence of the tape in the path produce a tape recorder stop signal. When you change the direction of reaching the magnetic tape, when you switch to another track after the start command is given, the drive shaft 15 moves, the pressure roller 19 presses the tape 5 and simultaneously

tape 18 presses the tape 5 to the magnetic heads 17, etc. In the Rewind mode, drive rollers 11 and 14 are fed to the receiving and feeding coils 1, all other mechanisms remain in the original

position In the Pause mode, all mechanisms are in the working position, but without power supply.

Claims (2)

Each of the described modes of operation of the tape recorder can be carried out simultaneously with all pairs, coils, it is also possible to implement each mode separately with each pair of coils. Claim 1, a Magni-phon containing several, at least two receiving and receiving units, kinematically connected with a tape mechanism with a block of magnetic heads, two drive shafts common to all receiving and receiving units, and two pressure rollers for each receiving and receiving node, characterized in that, in order to extend the functionality by providing the possibility of independent operating modes of various receiving nodes, the receiving nodes are placed in a single removable unit and made of several X independently from each other coils mounted for free rotation about two fixed parallel vertical axes, and between The support-thrust bearings are rigidly fixed by all coils and on the ends of the axles, and drive rollers, kinematically connected with elements of their movement, for example piezomotors, and installed with the possibility of movement before coming into contact with the coils of receiving-receiving units, and the number drive rollers corresponds to the number of coils placed in a single replaceable unit. 2. Tape recorder pop. 1, characterized in that the covers of the ribs of the coils and the surfaces of the drive rollers in contact with them are serrated. FIG. z4z377 h 0ue.it