SU1674244A1 - Cassette to run tape recorderъs tape drive - Google Patents

Abstract

The invention relates to the accumulation of information, in particular, to technological cassettes, with the help of which the tape recorder (LPM) of the tape recorder and the tape recorder itself must be run in order to mechanically burn in all the rotating and rubbing surfaces of its components and parts. The invention allows for the production of the LPM run and tape recorder under conditions as close as possible to the real ones, i.e. with a working clutch of the receiving reel box or the LSM winding unit in the “Record” and “Playback” modes and the possibility during the operational run to the “Rewind” modes with the corresponding disconnection of the clutch. While the tape is not limited, because The difference between the angular velocity of the receiving cassette holder and the angular velocity of its body, which determines the operation of the coupling, is not done with the help of the final tape segment, but through a roller that transmits the rotation of the LPM drive shaft to the receiving cassette holder. 1 hp f-ly, 5 ill.

Description

The invention relates to a magnetic recording technique, in particular to process cassettes, and can be used to drive tape recorders (LPM) tape recorders for the purpose of mechanical grinding of all rotating and rubbing surfaces.

The purpose of the invention is to reduce the labor intensity and simplify the technological run of the tape mechanism and the operational layout of the modes of operation of the tape mechanism.

FIG. 1 shows a cassette with a roller retracted from the drive shaft and a pulley for running LSM in Rewind modes; FIG. 2 is a view A of FIG. one; on fig.Z - place I in figure 2; FIG. 4 shows a cassette with a roller fed to the drive shaft and a pulley for running the LML in the Record and Play modes; figure 5 - view B in Fig.Z.

Turning on the tape recorder of the LPM tape recorder when running in the Record or Playback modes is performed by a cassette roll that drives the LPM drive shaft and the working surface of the cassette pulley at the same time using the strip, thereby ensuring the difference between the angular speed of the receiving cassette pulley and the angular velocity of its case.

Similarly, switching occurs even if the clutch is located in the LSM winding unit, i.e. the difference is created

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do the angular velocities of the winding unit itself and its pulley.

Breakdown of the coupling of the rewinding unit of the LMC is carried out if the winding mode is turned on when the roller is turned on.

The on-line shutdown of the roller for switching the LPM to the Rewind mode occurs due to a lock located in the cassette case. The transition from one mode to another is carried out without rearranging the cassette; the run time in any of the modes is unlimited.

In the case of the cassette, consisting of a cover 1 and a lower cover 2 (FIG. 1), there are two identical pulleys 3 and Za. pressed on the drums 4 and 4a and united by one drive belt 5. Pulleys 3 and Za, besides grooves 6 for the drive belt, have a working friction surface 7. In the cassette there is a strip 8 with a pressed axle 9, on which is a roller 10. On a radial surface roller, made in the form of a groove, wearing a rubber ring 11. Plank 8 is fixed with threaded bushings 12 and 12a and screws 13 and 13a so that it can make a reciprocating motion. The spring 14 at one end is fixed to the screw 13 of the sleeve 12, and the other to the bar 15 of the bar 8. The locking button 16, spring 17, is installed between the two covers 1 and 2 of the cassette and passes through a special hole that secures the bar 8.

In the composition of the tape recorder operates as follows.

When the tape recorder of the Rewind mode is turned on to the right, the receiving sub-cassette (not shown) transmits the movement to the feeding cassette holder (not shown) through the drive belt 5. When the Rewind mode is activated, the feeding cassette tape transmits the receiving cassette through the driving belt 5. In the Record or Playback mode, the process of the Rewind mode is repeated to the right, but at a slower speed. Both podkassetnika rotate, the coupling of the receiving podcastor or the winding unit (depending on the design of the tape recorder of the tape recorder) remains free from work. When you press the button-latch 16 spring 14 moves

the bar 8 to the left, so the roller 10 is between the drive shaft 18 of the TMA of the tape recorder and the pulley Behind the cassettes and begins to transmit the rotation of the drive shaft 18

for the pulley, creating the difference between the angular speed of the pulley for the cassette (pulley of the receiving puller of the LMM) and the angular velocity of the housing of the receiving cassette of the LMB, thereby including the coupling and

its work imitating the work of winding the tape in real conditions.

A similar process occurs if the clutch is located in the LSM take-up unit. If necessary, disconnect the clutch (go quickly to rewind modes), pull the bar 8 to the right until it stops behind the barb 15, which is above the top cover 1, the button-lock 16 under the action of the spring 17 returns to its original position and locks in the slot of the bar 8,

thus preventing the return of the bar 8 and, accordingly, of the roller 10 to the initial position, the roller 10 stops transmitting the rotation of the drive shaft 18 to the pulley For, the coupling of the receiving cassette holder or the node

the winding of the tape recorder of the tape recorder stops its work, it becomes possible to switch to the rewind modes. If you put the roller 10 between the drive shaft 18 and the Za pulley and switch on the Rewind mode, you will be able to run-in the rewind of the tape recorder of the tape recorder, since the receiving cassette holder will be braked. In all modes of operation is limited.

Claims (2)

1. A cassette for running a tape recorder mechanism comprising first and second pulleys located in a housing, characterized in that to increase efficiency by reducing labor-intensiveness and simplifying the production run of the tape machine, the transfer unit from the drive shaft to the pulley is inserted into it, made in the form of a roller located on the bar, the bar being mounted with the possibility of reciprocating movement in a direction parallel to the axis passing through the centers of rotation of the pulleys. 2. The cassette according to claim 1, characterized in that, in order to promptly change the operating modes of the tape drive mechanism, the bar is provided with a fixing element. 1 Type A FIG. 2 I 1L 1x 1 / SI Fig.Z Fig l Type B Fig 5