DE2057330A1 - Automatic changer player for magnetic tape cassettes - Google Patents

Description

DfL-ING. DIPL-INQ. Q. RIEBLINQ

PATENT ADVOCATE

My reference B438-

Am · repeating in the answer

Your «message from

Main « Message from

899 Lindau (Bodensee) Rannerle tt Poetfach 3β8

November 19, 197o

3ohn A. Britz,

78o3 CouEtland Street, Elmuiood Park, Illinois 6o635 / USA

Automatic UJechsler playback device for purple tape

cassettan.

The invention relates to an automatic UJechsler playback device for lYlagnetton tape cassettes in which a number of cassettes are stored in a magazine designed as a rotating drum, which has a step drive has to the cassettes one after the other in a

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To bring transitional stables

Iflagnetto tape recordings of musical Appearances and other forms of entertainment are increasingly becoming of widespread use · In many cases the magnetic tape is in a lightweight plastic container or container Plastic cartridge attached) which is called "Cassette ** are referred to as · lYlagnett tape recordings in Cartridges are suitable for use on many occasions because the tape is resistant to physical damage, Dirt and other adverse environmental factors are protected. The tape recordings can be a Provide monophonic or stereophonic reproduction of the highest quality; with many commercially available Cassette tape records use four or eight recording tracks which are high quality of the sound given by wisdom. The cost of Purple tape recordings in cassettes are the Costs for recordings of the highest reproduction quality are reasonably comparable and have increased Proven commercially acceptable. Cassette tape player are often used in automobiles used and found at home and in others

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ty

Locations Application

Dia U / iadergabegaräta for magnatto tape recordings however, cassettes have not achieved the versatility and flexibility that in many cases Record recordings are available, in particular, teaching equipment, which is able to use magnetic tape cassettes, has not been available · Most playback devices are limited to a single cassette, manual removal and insertion of the cassette is necessary to carry out a change It has a playback device for fflagnetton tape recordings put in cassettes, which play up to 6 cassettes in sequence. Others have the tapes on played on both sides, but without being able to select or reject the individual tapes Consequently, records of this type have not found widespread acceptance where they are commercially available and a long playback time with the possibility of selection is required, or also for use at home, where the same need is consists·

The object of the invention is to provide a new

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and improved auto changer— Playback device for (Ylagnett tape cassettes too create all of the tracks on a significant number of tapes without the assistance of the operator can save and play, and in particular without the need for manual reset, where the effective selection of a given number won tapes from a number of υοπ in the changer mechanism saved tapes is allowed without having to play the other tapes, which are also stored in the same lYlechanism. Either all bands should be in sequence or only selected tapes can be played back, and the device has a large storage capacity provided, and yet should be of compact format, and it should be economical and operational be comparable to high quality record changers.

An automatic changer — player for Magnetic tape cassettes according to the invention is constructed, includes a rotating drum storage magazine for receiving and storing a Number of tape cartridges together with one step

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snhaltantrisb to twist the magazine to get the To bring cassettes into a displacement position one at a time. The changer playback device further includes a bandu playback mechanism comprising at least one bandu playback deck, which is next to one side of the middle position of the cassette, ujobei the middle Cassette position in the tape playback mechanism with the offset position of the drum storage magazine is aligned. In the preferred construction there are two bandu playback decks, one on each side of the center cassette position. A displacement mechanism is provided to accommodate a Cassette along a predetermined displacement position from the offset position of the drum storage magazine to the middle position in the tape - Move the playback mechanism to the next level. The bandu playback mechanism includes a shifting device to move a cassette relative to the tape playback— Move deck to tape playback deck to put on and play off the tape and then to bring the cassette and deck back to their original relabion, ujobei put the cassette in the

OfilGiNAL INSPECTED

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mentioned middle position. For each deck, the cassette is attached to a deck first pushed to play the forward tracks of the tape, and then pushed to the other deck, to reproduce the reversed tracks, and then the bodice is brought to the middle position, to put them back in the storage magazine « The Ulechsler-li playback device also includes an electrical sequencer to control the Stepping drive in the displacement mechanism and the displacement device in a predetermined sequence press and play the tapes in the magazine, Preferably, Ulähleruorrichtungen are provided, to select individual tape cartridges to be reproduced without excluding the other tape cartridges according to the positions of the tape cartridges in the storage magazine.

The invention is described in detail with reference to the accompanying drawings,

It shows/

Fig. 1 is a partially sectioned front view an automatic! Uechs Lcir-UJiederqabngerates for magnetic tape cassettes, the one after

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Embodiment of the present invention is constructed;

Fig '2 is a partially cutaway plan view of the ll / Changer-Uiiedergabegerätes won _o Fig 1, generally along the line II-II won Fig. 1;

FIG _o 3 is a detail view of the stepping drive for the tape cassette storage magazine etma 'along the line HI-III in Figure 1 _o;

Fig. 4 is a sectional view of the mechanism of Bandiiiiedergabe- UJachsler-lliiedergabBgerätas, approximately along line IU-IU ₀ in Figure 1;

FIG. 5 is a sectional view, along the line \] - \ l in FIG. 1;

6 is a view of a detail of the rotating Drum storage magazine for the automatic LUachslsr-lliiBdergabegBrät;

Figure 7 _e sine view of a detail of the lUählereiechanismus for automatic UJechslsr-UJiedergabegarät;

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8 and 9 details of control switches, those in the automatic UJechsler-UJieder- output device are built-in; and

Fig.io a schematic representation of the electrical Sequence control order for the UJachsler- (liieder device.

A Uiechsler playback device shown in FIG. 1 2o for iflagnett tape cassettes contains a frame, it comprises a base part 21 on which three vertical frame parts 22, 23 and 24 are attached, uiobei there is a pipe part 25 between the vertical Frame parts 22 to 24 extend in the upper part of the frame. In the right side of the frame of the IDechsler-UJisdargabgerätes 2o is a rotating one Trommalspaicher-fflagazin 26 between the frame parts 23 and 24 attached.

Daa drum storage magazine 26 contains ztuai middle disc-shaped plates 27 and 28 passing through a number of spacer rods 29 are connected. The plate 27 is of relatively small diameter knife and is attached to a U / every 31, dia

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is mounted in the middle frame part 23. The plate 28 is much larger Diameter than the plate 27 and is υon a bearing 32 received in the right vertical Frame part 24 is attached. The plate 28 is driven by a drive connection with a drive shaft 33 connected, ujobei contains the drive connection sin drive member 34, the radially outer Ends attached to plate 28; the middle part of the drive member 34 is on the drive shaft 33 attached «The drive shaft 33 extends through the bearing 32 and is with an indexing drive which is described in more detail below.

UJie shown in Figs. 1 and 6 contains the Drum storage magazine 26 further includes a number of partition plates 35, one side of which is on one side the spacer rods 29 is attached. The partition plates 35 each extend from the drum storage magazine 26 radially outwards and define a number of individual tape cassette compartments 37 On the outside of each of the partition plates 35 two additional spacer rods 38 are attached,

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which are attached to opposite sides of the partition plate. In the illustrated construction is a total of 25 individual tape slots 37 mounted in the drum storage magazine 26, it being noted that this particular storage capacity for the magazine 26 is not critical and can be selected to meet needs to correspond to the intended use for the changer - playback device 2o »

The drum storage magazine 26 is provided with a stationary cover or housing which contains housing members 41 and 42 that are too lightweight. The housing member 41 is attached to the frame part 23 and protrudes from the peripheral part of the magazine 26. The complementary housing member 42 is secured to an auxiliary frame member 43 which is suitably mounted on the vertical frame member 24, iuie example, by a number of supports 44 ', the sub-frame member 43 also serves as additional support for the bearing 32 ₄ through which the drive shaft 33 for the drum extends and gives the entire structure greater strength "

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The rotating drum storage magazine 26 mostly has a storage capacity of 25 individual tape cartridges 45, one in each tape cartridge bay 37, uiie in Fig. 6 illustrates, in Fig. 1 are most of the tape cassettes 45 are omitted from the drawing in order to better illustrate the structure of FIG To enable storage drum · A cassette is · in the uppermost position 45 A in the memory 26 shown in Figure 1; this particular cassette position 45 A is hereinafter referred to as the offset position designated for the memory. The tape cartridges 45 illustrated in the drawings are from FIG "Philips" design, but other tape cassettes of suitable dimensions can be used and suitable arrangement of the various components of the scrubber playback device 2o.

The Troeaelspeicher-fflagazin 26 is with a stepping drive 51 (Figs. 1 and 3) to rotate the magazine and the tape cassettes 45 one after the other into the offset position · The indexing drive 51 comprises a ratchet wheel 52 mounted on the drive shaft 33;

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the ratchet wheel and the llielle can be on one be made single coherent plastic molding »on the ratchet wheel 52 engages a retaining pawl 53 on / which is rotatable on a small one on the vertical frame part 24 attached shaft 54 is mounted. A drive pawl 55 also engages the ratchet wheel, which is rotatably mounted on a bolt 56. The drive pawl 55 is connected to the holding pawl 53 connected by a spring 57. The bolt 56 is mounted on the upper end of an elongated drive lever 58 which is pivotable on a the frame part 24 received llielle 61 is mounted. The lower end 62 of the lever 58 is through a bolt 63 with an armature shaft 64 of a solenoid 65 connected.

The operation of the stepping mechanism 51, the control of which is detailed below in connection with Fig. 10 is described and performed by the excitation of the magnetic coil 65. When the coil 65 is energized

in
the armature shaft 64 is drawn in the coil and pivots the drive lever 58 about the llielle 61 in a counterclockwise direction. If the

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Drive pawl 55 moved to the left, ujird Turning of the ratchet wheel 52 counterclockwise by the holding pawl 53 v / prevents · the drive pawl 55 moves enough counterclockwise to engage the next tooth on ratchet 52 and simultaneously operate a switch 176, in order to switch off the magnetic coil Gö ' Spool 65 pulls the spring 57, the drive pawl 55 and its drive lever 58 back to the right and v / rotates the ratchet wheel 52 one step clockwise »

During the rotation of the ratchet wheel 52 clockwise the holding pawl 53 runs onto the pawl tooth, with luelchem it is in engagement, until the end of that Tooth. The retaining pawl engages behind the adjacent tooth and prevents the ratchet wheel 52 from on the next actuation of the indexing drive 51 in a counterclockwise direction getting twisted back. The number of teeth on ratchet 52 is equal to the number of Tape cassette slots 37 in magazine 26; consequently The indexing drive 51 rotates the drum storage magazine around each of the tape cassettes 45 one after the other

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to bring into the offset position 45 A »Im During this process every tape cassette compartment happens 37 the drum also has an insert opening 67, in the housing members 41 and 42 (see Fig »3), which enables proper insertion and removal of the individual cassettes into and from the storage drum permitted·

The UJechsler Uiiadergabeeinrichtung 2o also contains a tape playback mechanism 71 fixed between the frame members 22 and 23 (FIG. 1 and 4). As shown in Fig. 4, the tape playback mechanism includes 71 two decks 72 and 73, which are to / ischen the frame parts 22 and 23 in V-shaped Arrangement are attached to each other. The indentation of the V-shape formed by the decks 72 and 73 is with the axis 74 of the storage magazine 26 aligned.

The deck 72 is of generally conventional construction. It includes one. Belt drive motor 75, which by a belt or other suitable drive means (not shown) rait a drive roller 76 is connected. The drive roller 76 stands through an opening in a deck mounted

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Cassette forward, "with this cassette position through dashed lines 42 C is indicated «The deck 72 further comprises support parts 77 and 78, one To attach the cassette in the 45 C position, as well as other elements, such as a pin 79 to ensure that the tape is played back effectively. A magnetic pickup head (not shown) is also mounted on deck 72} and forms part of it.

The second deck 73 in the tape playback mechanism 71 is of similar construction and comprises a tape drive _{motor Bt x} a capstan 82, suitable support and guide members 83 and 84, and a pin 85 to hold a tape cassette on the deck 73 in dsr by the dashed lines 45 D position indicated. The deck 72 also includes a suitable magnetic pickup head (not shown) «

The tape presentation mechanism 71 further comprises a cassette holder 87 aligned with but above the axis 74 of the drum Drum axis B between the two decks 72 and 73 is attached «The cassette holder 87 is from im

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general U-shaped cross-sectional arrangement, which is open on the side to the magazine 26 and is closed on the opposite side. The cassette holder 87 is on a UJbIIb 86 attached, which extends between the frame parts 22 and 23 (Figs. 1 and 4). ! Because yourself with the cassette holder 87 in the illustrated position, it can be seen that a cassette v / on the offset position 45 A (FIG. 1) through aligned openings 89 and 91 in the housing member 41 and the frame part 23 can be moved into the vertical position 45 B, in which the Cassette is shown in FIG.

Figs. 1, 4 and 5 illustrate a shifting device 9o, which comprises the cassette holder 87, to hold a tape cassette between the positions 45 B, 45 C and 45 D to slide · The side of the cassette holder 87 near the frame member 22 includes a upwardly extending member 93 to which an elongated pin 94 is attached. Of the Pin 94 protrudes through an arcuate slot 95 in frame portion 22 and through a small opening

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96 in a cassette displacement swivel arm 97 before. The pivot arm 97 is rotatable on a shaft which is attached to the frame member 22 (Figures 1 and 5) and is supported by two springs Biasing means including 1o1 and 1o2 are normally in the vertical orientation illustrated of FIG. 5 held.

The upper end of the pivot arm 97 has an elongated one Open slot 1o3, through which a bolt 1o4 protrudes. The bolt 1o4 is on one Nooke 1o5 mounted on an operating shaft 1o6 is appropriate for tape playback «The shaft 1o6 is one with an output shaft 1o7 Udo tors 1oB connected for operating the tape playback. The left end of the shaft 1o6 is in one Mounted bearing 1o9, which is fastened in a vertical frame part 22. The engine 108 is on the top Part of the vertical frame part 23 attached. The shaft 1o6 takes a number of cams 131 to 135, which are used for tax purposes as explained below,

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The basic mechanical operation of the cassette shifting device 9o and is different from that in Figs. 1, 4 and 5 understood the Meohanism illustrated; the control of the displacement device 9o is described below in connection with FIG. 1o A tape cassette to be played is being played first mounted in the middle position 45 B in the tape playback mecdianism 71. To the To move the cassette from position 45 B to position 45 C, the motor 1o8 is switched on, to rotate the shaft Io6 clockwise, indicated by an arrow A in FIG.

Clockwise rotation of shaft 1o6 and disk Io5 pivots arm 97 clockwise When the swing arm 97 moves to the right (Fig. 5), caused ar due to the connection between the cassette holder 87 and the pivot arm 97 through the element 93 and the pin 94 a corresponding pivoting movement of the cassette holder 87.

After the cam disc 1o5 has rotated over an arc of about 12o °, the motor becomes 1o8 stopped at which point the arm 97 has not been pivoted around the pin 94 to the right end of the

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Slit 95 to bring »the resulting Schiuenkverschiebes of the cassette stopper 87 moves a mounted cassette into the Position 45C where the cassette engages the operational components of deck 72. If the The cassette is in the 45 C position, the traces of the tape are played back.

When the reproduction of the forward tracks is completed, the shift motor 108 is again turned on, un the lilelle 1o6 and the disk Turn 1o5 clockwise.In this case, the rotation is maintained by about 18o, u / obei the arm 97 pivoted counterclockwise and the pin 94 is brought to the left end of the slot 95. The arcuate movement of the pen 94 causes a corresponding movement of the cassette holder 8J7, which holds the cassette in the holder from position 45 C on deck 72 to position 45 D on the second deck 73. At this Then the motor 1o8 is switched off and the reverse tracks of the tape in the cassette are turned off reproduced, lilenn reproduction the reverse Traces is murdered, the (rotor 1o8 again

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switched on, and rotates the UJbIIb 1o6 and the disk 1o5 _; an additional arc of about 60 back to the position illustrated in FIG. 5.

This brings the pivot arm 97 back into its original vertical orientation and thus swings the cassette holder 87 back into the vertical position in order to mount the cassette in the central position 45B, from which it can be moved back to the storage magazine 26 _e

The UJechsler-UiiedergabegBrät 2o also contains one Linkage mechanism 111, which is best illustrated in FIG > 1, 2 and 4 is illustrated. The displacement mechanism 111 includes a motor 112 mounted on a stand 113; the stand 113 extends from the upper part of the vertical frame part B 23 to an upper extension 24 A of the vertical frame part 24. A shaft 114 of the replacement ICIotors 112 takes a nooke 115 and a large cam plate 123. The size Cam plate 123 has a bolt 116, which is close

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the outer edge of the disc is attached The bolt 116 is pivotable with one end of a • Galankes 117 des Varaetzungantriabaa connected · The other end of the Galankaa 117 takes a pen 118 up, facing down into an opening in a displacement slide bar 119 extends " The sliding rod 119 is slidably fastened in the pipe part 25, the pipe part 25 is an elongated one Has slot 125 to accommodate the pin 118 to be provided. A pin 121 is near the left one The end of the slide bar 119 is fixed thereon, as shown in FIG. 1, and extends downward through a slot 124 in the tube portion 25. A similar pin 122 stands from a point near the opposite end of the slide rod down through the slot 124 in front.

The actuation of the positioning mechanism 111 is necessary initiated by switching on the motor 112, which rotates the Uielle 114 · UI when the shaft 114 if twisted, the cam disk 123, which guides the bolt 116 with aich, is twisted. Starting from the in FIG. 2 shows the most illustrative position when the lYlotoruialle and the cam disk 123 are rotated in a clockwise direction,

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the arcuate movement of the bolt 116 begins, starting from the center line 126, the joint 117 to drive to the left. This gives the slide bar 119 a corresponding movement

UIf there is a tape cassette in position 45A is in the drum storage magazine, movement of slide bar 119 to the left brings the pin 122 of the slide bar engages the right edge of the cassette and begins to pull the cassatta from the Stable 45 A in the direction of the middle stables 45 B in dam Bandusiadargabamechaniamus 71.

After the cam disk 123 has been rotated by etωa 18o the slide bar 119 has been moved to the left over a distance, as shown in FIGS. 1 and 2 to see that the tape cassatta is complete in the cassette holder 87 in the translation Mechanism to move Luie through dashed slide Lines 45B indicated in FIG. Won this middle position the cassette, ujia described above, can be played on both sides.

When playback of the tape cassette has been completed and the cassette is returned to the magazine 26

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has been, the motor 112 is switched on again, and turn the Uielle 114 over etuia 18o °. While this rotation of the UJelle 114 rotates the Cam disk 123 also over an angle of about 180 ° and pulls the joint 117 back into the in Fig. 1 and 2 position shown. As a result, slide bar 119 bends back to the right to its original position · In the course of this movement, the pin 121 of the slide rod engages to the cassette mounted in the tape playback mechanism 71 at position 45B has been murdered and bends it back into its original position 45 A in the magazine 26. In any case occurs a slight over travel of the slide bar 119, so that the cassette finally from the Pins 121 and 122 comes free when the cartridge is either in the replacement position 45 A or the middle tape playback position 45 B brought uiird.

Figures 1 and 7 illustrate a selector 14o used to select individual tape cartridges without playing back other cartridges stored in the magazine 26. The grinder

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14o contains a grinding disk 141 which is placed on a Extension of the drive shaft 33 for synchronous rotary movement with the (Klagazin is attached.

A number of Ulähletifte 145 are on the perimeter of the grinding disk 141 attached. The total number of milling pins 145 corresponds to the number of cassette compartments 37 in the magazine 26 and there are suitable markings on the grinding disk 141, ^ around each of the UJählstifte 145 corresponding to one designated tape cassette compartment 37.

The pins 145 are each individually operable from a normal, non-selective position, such as on the top of the disc 141 shown in Fig. 1, and an actuated or UJählstellung by the pin 145 A is illustrated at the bottom of the washer 141, Each pin 145 is provided with a simple elastic Provided locking member.

Ψ For each of the grinder pins 145 there is a corresponding selector switch 146 on the grinder disk 141. The switch construction is best illustrated in FIG. Ulie shown therein, each of the UJählstifte 145 has a pair of insulating washers 147,

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which are attached to the pen. The end of a spring contact 148 is between the ztuei Isolation washers held. Contact 148 is in the open position, spaced from the other Contact 149 of Schaltsra 146 held when the pin is in its non-selective retracted position Position, ujie through the pin 145 in Fig. 1 shown, Whenever the UJählstift 145 is pressed on the grinding disk 141 to ίηηβη, to carry out a UJählvorgang, brings the movement of the pin in the position shown by the pin 145 A, the contact 148 engages to the left with the second contact 149 of the switch.

In some cases it may be desirable to depress all of the selectors 145 to all in the storage magazine play existing tape cartridges. This could be done manually by pressing one at a time each of the pins 145 can be executed. To avoid the need for manual actuation of the U Turn off the selector pins, if desired, to turn off all of the tape cartridges in the memory cartridge To play back, a link lever 151 can be of a

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normal retracted position 151 A out of engagement with the dial mechanism * to the position shown in FIG and FIG. 9 illustrated position of the automatic playback can be shifted.

The rotary movement of the dial 141 takes place clockwise, indicated by an arrow C in Fig. indicated when the magazine by the index drive 51 is switched to bring successive cassettes into the playback position, such as As described above, the corresponding rotation of the dial 141 brings each of the dial pins 145 in engagement with a beveled cam part of the driver lever 151. Each UJählstift 145 uiird thus pressed on the dial 141 inwards into its UJählstallung; consequently everyone luirds The selector pin 145 is actuated to allow playback of the corresponding tape cassettes.

The UJählstifte 145 are also used to P to operate a detent switch 154, which is best illustrated in FIG. The detent position switch 154 is a single pole changeover switch,

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operated by an extension arm 155 If the Uiählstift is not pressed, release it 145 the uppermost determination of the grinding disc 141, as indicated by a locking mark 158, the pin actuates the switch 154 not. This indicates to the control arrangement of the changer playback device 2o that a specific compartment of the magazine 26, which the displacement position 45 A on the cassette should not be played back. UJenn on the other hand the Uiählstift 145 has previously been pressed into position 145 B (Fig. 8), he grips with Reaching the uppermost switch position 158 on the extension arm 155 of the latching position switch 154 at. This indicates to the control arrangement that the tape cassette is in the displacement position of the fflagzins 26 is to be played back

To avoid repeated playback in the same selected position, there is a reset mechanism intended for the Ufählstifte 145 · This mechanism comprises a lever 156 which is pivotable on a fastening arm 157 fastened to the frame part 24

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The upper end of the lever 156 engages the right end of the slide bar 119, and is biased towards the slide bar by a spring 153 · The lower end of the lever 156 takes on a role 15o with the Uiählstift 145 in the latching position 158 of the dial 141 is aligned.

Each time the replacement mechanism is operated

^ 111 when the slide bar 119 makes its replacement movement begins (arrow B, Fig. 1), the lever 156 is done by the spring 153 counterclockwise wavered. This pushes the roller 15o outwards in the direction of the dial 141 and sets the Uiählstift in the displacement position of his depressed position (dashed line 145 B) to its original non-actuated position back · A cam rod 159 is provided to reverse the deflection of each of the pins 145 back into the

Ensure W the original retracted position if continued movement of the dial displaces the pins past the detent or offset position 158.

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Fig. 1α is a schematic representation of a sequential and selective control arrangement 16o for the UJechsler U playback device 2o. UJia in Fig. 10 illustrates) the control arrangement

160 through two power lines 161 and 162

connected to a conventional alternating current network A main switch 163 is in series in the power line

161 connected, which becomes a central connection

164 of a single pole cam operated changeover switch

165 extends · The changeover switch 165 usually two contacts

166 and 167, to which the IKlittelkontakt alternates 164 can attack · The switch contact 167 carries a cam pin 168 which is attached to the cam 115 on the UJelle 114 of the motor 112 attacks (see Fig. 1) UIf the cam 115 is in its normal position, with slide bar 119 fully retracted, as shown in FIG. 1, is the Changeover switch 165 in the operating state illustrated in FIG. 1o, the switch contacts 164 and 166 are closed and contacts 164 and 167 are open.

The contact 166 of the changeover switch 165 is connected to the contacts 148 in all 25 UJählschalter 146 (see Fig. 8).

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The contact 149 for each selector switch 146 is connected to a (ridge connection 171 of a magazine switch 172 connected. The IT magazine switch 172 is on Single pole changeover switch connected to the connections 173 and 174 has «UJie shown in Figs. 1 and 2, is the magazine switch 172 adjacent to the frame member 24 near the top of the rotating drum magazine 26 and includes an actuator arm 175 which extends through an opening in the vertical Frame part 24 and through an aligned opening P in the housing member 42 in a position next to the Displacement position for the magazine 26 protrudes. If a tape cassette is present in the offset position 45 A of the magazine 26, it attacks the actuator arm 175 and holds the magazine switch

172 in the "full" operating state illustrated in FIG. 1o, the contact 171 on the contact

173 is present. However, if there is no cassette

is in the offset position of the magazine 26, ^ the bag magazine switch 172 is brought into its opposite state, with the contact 171 of the "full" contact 173 opens and on the ^M empty "contact

174 closes «

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The ^M / oll ^H contact 173 of the magazine switch 172 is electrically connected to the Witteikontakt 155 of the latching position switch 154 described above in connection with bit FIG. 7. The contact 157 of the switch 154 is connected to the contact 167 of the changeover switch 165 and to a conductor 177. The contact 156 of the detent position switch 154 is connected to the "empty" contact 174 of the magazine switch 172 and is also connected to a normally closed multiple switch 176. The step switch 176 is connected to one connection of the S-step solenoid coil 65, the other connection of the step switching coil being connected to the power line 162. The tap changer 176 is shown in FIG. 3; this switch is normally closed, but is open whenever the drive pawl 55 has been actuated in order to baeegen the ratchet wheel 52 by bending the magazine 26 in one step. The operation of the step switch 176 occurs in the first part of the operation of the stepping drive; the switch closes again when the step-by-step process is completed,

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Ulie shown in Fig. 1o extends the Conductor 177 from contacts 157 and 167 of switches 154 and 165 to a central contact 181 of a control switch 182 operated by the cam 123 in the displacement mechanism 111 is actuated. As shown in Fig. 2, the control switch 182 includes a cam follower 183, which engages the periphery of the disc, and normally switch 182 in that illustrated in Fig. 10 Operating statefiolds, the ITlittBlkontakt 181 is applied to an outer contact 184 | and is lifted from a second outer contact 185. The rotation of the cam however, brings the cam follower 183 into a notch 186 in the course of an offset movement the cam plate 123 to operate the control switch and open the contacts 181, 184, and to close contacts 181, 185.

The normally closed contact 184 of the control switch 182 is electrical with a Connection of the motor 112 connected, the other connection of the motor 112 to the power line 162 is connected. The normally open contact

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185 dea control switching tare 182 is alektriach connected to a conductor 186 ', which is connected to a contact 187 of a normally closed cam operated switch 188 which has a second contact 189. The contact 187 of the switch 188 carries a cam follower 191, which is attached to the circumference of the Nocka 135 engages on the actuation wall 1o6, which is driven by the actuation motor 1o8 (see Fig. 1) is driven »The contact 189 of the switch is electrically connected to one of the connection lines. >

connected to the motor 1o8, the other connection to the motor 1o8 with the power line 162 is connected.

Conductor 177 is electrical with one contact of a normally open control switch 193 tied together. A second contact 192 of switch 193 is electrically connected to motor 112. The switch contact 194 includes an extension

195 ainea Nockenstössela, which are in the alignment f

with a pin 196 that is on the nocka 135 representing a tail of a deck operating mechanism, the cam

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is mounted on the operating shaft 1o6, which is driven by the motor 1o8.

In the control arrangement 16o of FIG. 1o, the conductor 177 is also connected to a contact 2o2 of a control switch 2o1. At contact 2o2, e-in can act on another contact 2o3 of the switch. The contact 2o2 is a movable contact which receives a cam follower 2o4 and which slides on the circumference of the cam 1o5 in the sliding device W 9o for the cassette, the arrangement

for switch 2o1 in FIG. 5 is illustrated. The second contact 2o3 of the switch 2o1 is electrically connected to the motor 1o8.

The control arrangement 16o is provided with a device for determining the completion of the reproduction individual tape recordings in both the forward and reverse directions. To the

^ Detection of the forward direction contains this device a sensor switch 2o6, which comprises two spaced apart contact members 2o7 and 2o8, mounted to access the tape in a cassette mounted on the first deck 72.

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The general mounting of the switch 2o6 is shown in FIG. The two contact members 2o7 and 2o8 of switch 2o6 do not physically touch each otherj they are attached to through a small conductive strip 2o5 to be bridged at the end of the Rlagnetton tape in each cassette is mounted «A second similar switch 2o9 is used in connection with the attached deck 73 and contains a pair of contact members 211 and 212 by a small conductive strip 213 on the opposite The end of the magnetic tape in each cassette can be bridged · In the two sensor switches 2o6 and 2o9, the contact members 2o7 and 211 are electrically connected to the conductor 186 *. the Contact members 2o8 and 212 are electrically connected to the contact 2o3 of the control switch 2o1.

It is desirable to have a positive indication of the attachment of a tape cassette for playback one of the two decks 72 and 73 to be provided. In the electrical control arrangement 16o of FIG this compulsory display is granted by two indicator lamps 215 and 216 to the presence of a cassette

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on decks 72 and 73 respectively. One switch

217 is attached to deck 72 in such a way that

in order to have his contacts closed, one always has a tape cassette on deck 72 in the playback position is appropriate. A similar switch

218 is attached to the second deck 73 and performs the same function (see Fig. 4). The switch 217 and the lamp 215 are connected in series between the conductor 1Θ6 ¹ and the power line 162.

Likewise, switch 218 and indicator light 216 are in series between the conductor 186 * and the power line 162 connected.

The control circuits for decks 72 and 73, and particularly tape drive motors 75 and 81 are illustrated in the lower part of FIG. 1o. Uiie shown therein is the belt drive motor 75 for the first deck 72 in series with a normally open cam operated on / off switch r 221 connected between the main switch 163 and the power line 162 »The switch 221 is activated by the Cams 132 and 134 actuated on the actuating shaft 1o6 of the motor 1o8. (See Fig. 1).

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The control circuit for the second belt drive motor 81 is similar and includes a normally open on / off switch 123 operated by the cam 131 and 133 is operated · The mounting arrangements for these two switches are similar. As shown in Fig. 4, each is the switch provided with a manually operated lever, such as lever 225 on the switch 222 to allow the decks to be controlled independently of the cash register.

BSi the consideration of the operation of the Wechsler Uiiedergabsgsrätas 2o under the control of the control arrangement 16α it is first assumed that one number of tape cartridges in magazine 26 inserted and ready for playback · To start the playback device, the Main switch 163 closed, causing an electrical circuit from the power line 161 through the normally gas closed on contacts 164 and 166 of switch 165 to contacts 1-45 of the selector switch 146 is made. As long as at least one of the UJählstifta 145 to reproduce a given Tape cassette has been pressed is at least

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one of the selector switch 146 is closed. Consequently, the electrical circuit is through the selector switches and by switches 172, 154 and 156 to the stepping coil, 65 closed, the energizes the stepper coil. The circuit is a few things different when it closes of the switch 163 to the Uerschiebestellung attached tape cassette compartment 37 of magazine 26 is empty} under these conditions the switch 172 is in its second operating state and the P Supply circuit for the stepping coil

bypasses switch 154.

In all circumstances, energization of the stepping coil 65 actuates the stepping drive 51, as described above, and twist the (Klagazin 26 over a short arc distance, which corresponds to one tooth of the ratchet wheel 52. The step switch 176 opens early in the indexing process, but k allows the inertia of the indexing drive

him to complete his step-up operation so that the switch 176 closes again. To this Ufeiss is the coil 65 protruded to the magazine switch from position to position until one

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the Uiählstifte 145 dan latching position switch 154 is actuated to indicate that a tape cassette selected for playback is in the Displacement position of the magazine 26 is located. When this happens, and a cartridge in the If the offset position is present, the actuator circuit for the stepper coil is operated 65 opened at the latching position switch 154, with a selected cassette in position for playback.

In the event that no cassette is in the magazine in the selected position, however, the circuit to the stepping coil 65 is not interrupted, and the carriage switch 172 is in its ^M empty "position and bypasses the detent switch 154. When this occurs, the stepping coil 65 continues its operation as described above until a depressed selector pin corresponding to a desired compartment in the magazine 26 reaches the offset position 45A of the magazine, at which point the circuit to the stepping coil 65 is opened.

- 4o -

When the detent switch 154 is operated and a cassette is in the offset position is located, tuie described above, ujxrd about the Contacts 155 and 157 of the detent switch 154 and via the normally closed Contacts 181 and 184 of control switch 182 form an electrical circuit to motor 112 closed. This puts the displacement engine into action and begins its cycle of operation, ujobei the Nooke 115 and the cam disc 123 can be rotated. Shortly thereafter, the dislocation Motor 112 switched on, cam 115 actuates switch 165, thereby opening contacts 164 and 166 and closes contacts 164 and 167. This breaks the circuit to the UJählteil the control arrangement 16o on the left side of the drawing, but holds over the switch contacts 164 and 167 a circuit for the motor 112 upright. This enables the motor 112 to operate ^ continue until the cam follower 183 of the switch 182 falls into the notch 186 in the cam disk. When this happens the circuit is to the motor 112 interrupted. This occurs after about 180 of the rotation of the disk 123, and corresponds to

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the completion of a folding cycle ¹ , which moves a cassette from the first order 45 A to the middle position 45 B in the tape playback mechanism 71 (Fig. 1), as described above.

UJenn dar control switch 182 on completion the shift cycle is actuated, the switch contacts 181 and 185 are closed. this closes an electrical circuit υοη the Mains line 161 via main switch 163 and switches 165 and 181 to conductor 186 *. As a result, the motor 1o8 of the displacement control is turned on through a circuit which extends from conductor 186 * via the switch to motor 1o8 and then to power line 162 As a result, the motor 1o8 is switched on and the actuating parts 1o6 starts to rotate. Shortly after the motor is switched on, 1o8 becomes the control switch 2o1 closed, if its cam- tappet 2o4 runs up on the circumference of the cam 1o5. Shortly thereafter, the switch 188 is activated by the continued Rotation of cam 135 opens so that motor 1o8 is now off conductor 177 in a circuit is fed, which bypasses switches 182 and 188.

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ll / enn the motor continues 1o8 saina rotation, he drives the sliding device 9o over the initial part of their operating cycle on, shifts the tape cassette mounted in the cassette holder 87 from the middle one Position 45 B in the Bandiuiedargabamachanismus

71 in the first output position 45 C au f

the deck 72 (see Figure 4). In the illustrated Mechanism rotates the motor 1o8 when pivoting the tape cassette from the middle position 45 B ^ in the first playback position 45 C on the deck

72 over an angle of atiua 1o4 °. The motor 1o8 continues its rotation over an additional arc uon atma 2o °, at that point in time

the Nooke 132 closes the switch 221 in the feed circuit for the tape drive motor 75. At this Set the operating cycle, the cam follower 2o4 for the switch 2o1 falls into a notch in the Disk 1o5, opens the supply circuit to the motor 1o8 and stops it. The belt drive motor 75 is turned on and the forward tracks of the tape cassette are now in conventional Way reproduced. When completing playback

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of the advance tracks of the tape cassette become the ζu / ei contact elements 2o7 and 2o8 of the sensor switch 2o6 on the first deck 72 by a strip 2o5 of silver foil or another conductive strip Bridged material on the belt. This closes a supply circuit for the motor 1o8, the from the conductor 186 * via the sensor switch 2o6 extends to the engine. The rotor 1o8 turns the actuating parts 1o6 by an angle of etuia 2o °, at which point the nook 134 the switch 221 for the belt drive motor 75 on the Deck 72 opens. This interrupts the tape drive and allows the tape cartridge to be removed from deck 72.

The rotor of the sliding actuation closes when it rotates, also switch 2o2, because it is now the cam follower 2o4 out of the notch that triggered the opening of the switch for playback of the first page of the tape Continued rotation of the sliding control motor The shifting device is actuated over an additional angle of about 112 ° 9o to put the tape cartridge from the first deck 72 on

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to bring the second deck 73. The continued rotation of the motor 1o8 over an additional Angle of about 20 ° causes the cam 133, the switch 222 for the motor 81 on the second Close deck. This initiates playback of the reverse tracks of the tape record; when playback is indicated, the cam follower falls 2o4 in a second notch on the cam 1o5 and again interrupts the feed circuit for the engine 1o8.

The player will now continue playing the reverse tracks of the tape cassette. When this reproduction is complete, a conductive strip 213 on the tape bridges the contact members 211 and 212 of the sensing switch 2o9 and again feeds the motor 108 from the conductor 186 ¹ . During the first twenty degrees of rotation of the motor 108, the cam 131 is positioned to open the switch 222 and turn off the second tape drive motor 81 so that the tape cartridge can be removed from the second deck. During this same interval the

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Cam follower for switch 2o1 on the circumference of cam 1o5, so that motor 1o8 remains switched on via switch 2o1.

The motor 108 continues its rotation over the remaining arc of about 64 ° that is necessary is to complete a single turn. During this additional rotation the motor shifts 1oB the displacement device 9o the cassette from the position 45 D on the deck 73 back into the middle position 45 B in the displacement mechanism, at the end of the complete revolution the UJelle 1o6, the cam follower 2o4 falls into the notch again, tuo it began on the cam 1o5, and switches off the motor 1o8 of the sliding actuation «, this completes the operating cycle of the Shifting device and also the reproduction of both sides of the tape record in the cassette.

Shortly before the completion of the reproduction cycle ¹ described above, the pin 196 on the disk 135 engages the cam follower extension of the control switch 193. This feeds the

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Displacement motor 112 through circuitry that extends from conductor 177 via control switch 192 to the motor. The feeding This circuit is maintained long enough around the shaft 114 and the cam 123 to rotate through an arc sufficient to remove the cam follower 183 from the notch 186 to get free. Thus, if the switch opens at the completion of the shift cycle, the displacement motor 112 is again energized through conductor 177 and switch 182, the displacement motor continues its action by the second Half of the displacement cycle continues and moves the cassette u from the middle position 45 B in the Tape playback mechanism back to the offset position 45 A in the magazine 26.

When the motor 112 completes its 36o revolution, the cam 115 re-aligns its notch with the cam pin 168 for the switch 165. If this happens, the supply circuit for the displacement motor, which is via the switch contacts 164 and 167 has been maintained, interrupted.

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However, about the continued powering of the translation motor and repeated playback for the same tape cassette, it is necessary to avoid the power supply over the other Exclude circuit that initiated the relocation process. Because of this, the Movement of slide bar 119 used to reset U-selector pin 145, which started the displacement action in the first digit. As above Describes resetting the pin 145 preferably at the beginning of the displacement cycle. executed just after the cam 115 hit the switch 165, although this is not critical.

In those cases in which there is no cassette in the magazine in a position that one if the selector pin 145 is pressed, the displacement mechanism will not go through a cycle of operation. as described above. The cam arm 159, however, pushes the dBn pin back into its unpushed position, when the magazine and grinding disk 141 rotate, which prevents the UJechsler-ll / iedergabeeinrichtung 2o from to continue working indefinitely · After all selected cassettes have been played, the device switches itself off

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automatically off, uj via other selector switches 146 are no longer closed.

In the above operational description of the control assembly 16o and its operation of the changer player 2o, it has been assumed that the slave lever 151 has been pushed to its inoperative position 151A (Fig. 7) and that manual control is used in selecting the tape cassettes to be reproduced is _0, the operation is essentially the same, when the lever 151 is in the operating position, except that alia selector rods are pushed 145 through the IMockenteil 152 of the lever 151 and the assembly maintains operation continuously, and each tape cassette is in the magazine ,, In this case there is no automatic shutdown; when all the tape cartridges have been played back, the sequence begins again. During playback of a given selected cartridge, an interruption may be desired, such as B. if the user has to leave the room for a phone call or the like. Playback can

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interrupted at any point by manually actuating one of the switches 221 and 222, because each is provided with a manual operation, such as the lever for switch 222 (FIG. 4). Additional manual controls may be provided for the Decks 72 and 73 are provided to allow full manual operation, independent of the automatic control and the change carried out by the complete arrangement. Z. Β »can have a faster for each of the two decks Forward drive can be provided according to conventional practice. When this is done, the Operator either the forward or reverse lanes for any given tape by using the fast forward propulsion for the deck that those Side of the tape. The optional actuation of this type is indicated by the indicator lights 215 and 216, which constantly give a direct indication of the position of the tape cassette and the portion of the reproduced tape.

- Π ο -

l ο α η ut, ι ο <) Ei t;

The llJechsler display arrangement of the present Invention is able to selectively either side of a large number of cassettes or play back in sequence. It does not require a manual reset for any of the bands— cassettes as soon as the selection is made. The basic tax relocation and Sliding mechanisms can be used without changing for storage magazines of different capacities be used. In the illustrated embodiment, the storage drum rotates one horizontal axis, but could be mounted differently to rotate about a vertical axis Axle to be provided, whereby no essential change is required in the basic mechanism. The same rotating magazine assembly can accommodate cartridges with endless tape, in which case only one deck is required for playback "

Claims

_ π l -

] 0 «I Ii U A / I) ί) 6 Γ)

Claims (7)

Claims Automatic Ulechsler playback device for recordings on magnetic tape cassettes, characterized by: a rotating drum storage magazine (26) containing a number of tape storage compartments (37) each of which is capable of receiving and storing a tape cassette (45) an index drive (51) for rotating the lYlagazins (26) around the tape cassettes (45) one after the other move to an offset position; a tape playback mechanism (71) that uses a Contains deck (72, 73) which is mounted next to one side of a central cassette position (45 A), wherein the middle position (45 A) is aligned with the offset position of the magazine (26); a replacement mechanism (111) for displacement a cartridge (45) a predetermined distance from the offset position of the magazine in the middle position (45 A) in the banduiiedergabe- - 52 109844/0966 mechanism (71); a shifting device (9o) included in the tape playback mechanism (71) for Sliding a cassette (45) relative to the tape playback deck (72, 73) to get on the deck and play the tape, and then put the cassette (45) and deck back into theirs bringing the initial relation with the cassette (45) in the middle position; and an electrical control sequence arrangement (I6o), the indexing drive (51), the displacement mechanism (111) and the shifting device (9o) to operate in a predetermined sequence and play back the tapes in the magazine. 2. Apparatus according to claim 1, characterized t indicated that the bandu playback mechanism (71) immediately adjacent to one side of the offset position (45 A) of the drum storage magazine (26) is attached and that the displacement iueg - 53 - 109844/0966 205733Q is a linear UJeg that runs parallel to the Axis of the storage drum (26) extended 3. Apparatus according to claim 1, characterized in that the tape playback mechanism (71) contains two tape playback decks (72, 73) on opposite sides Sides of the middle position are arranged, and that the displacement device (9o) a Cassette holder comprises to receive a cassette (45) in the middle position and a Slide actuator for shifting the position of the cassette holder and first mounting the cassette (45) on a deck (72) to reveal the urujärtssigns of the tape and then on the other deck (73), to play the reversed tracks on the tape, and then put the cassette back into the center To take position. - 54 - 1098A4 / 0966 205733Q 4. Apparatus according to claim 3, characterized in that the decks (72, 73) are arranged in a U-shape relative to one another are, ujobei the bulge of the U parallel to a Edge of a cassette mounted in the cassette holder runs, and the sliding movement of the cassette stopper is a pivoting movement about an axis arranged parallel to the one edge. f 5. Apparatus according to claim 1, characterized by a selection device (I4o) which is effectively connected to the control arrangement (I6o) and the storage magazine (26) to individual To select tape cartridges (45) for playback without changing other according to the tape cartridges in the To play the magazine. 6 ₀ device according to claim 5, characterized in that the selection device (14o) contains: - 55 - 109844/0966 A dial (141) that synchronizes with the rotation level bending of the drum storage magazine (26) is driven; a number of U-dialing elements (145), one for each tape storage compartment (37) in the magazine (26), mounted on the disc (141) in an arrangement similar to the arrangement of the compartments (37) in the magazine (26) corresponds to each Element (145) is manually operable from a retracted position to a selected position; and a selector switch (146) operated by the selector elements (145) is actuated, and is electrically connected to the control arrangement (16ο) to the initiation of the operation of the U / echsler playback device (2o) to enable only if at least one of the selector switches (146) is brought into his selection position murder. 7. Apparatus according to claim 6, characterized by one in the control arrangement (16o) included selector sensor switch, which is connected to the - 56 109844/0966 Dial (141) is aligned in a detent position, which is the offset position for the storage drum (26) corresponds to the displacement mechanism and the displacement device To inhibit their activity, a new storage compartment (37) always runs into the Relocation position is switched, unless the one corresponding to that storage compartment (37) lUählelement (145) previously in its Uiählstellung activated murder «, 8, device according to claim 7, characterized in that a selection element (145) attached to the detent by operating the displacement mechanism returned to its retracted position. 9 «, device according to claim 6, d a du r c h characterized in that the selection device (14o) further includes a cam member (152), - 57 - 109844/0966 Si that next to the dial (141) υοη a withdrawn Position is movable into an operative position, and that the cam member (152) each UJählelement (145) in turn in its Uiählposition advances when the drum storage magazine (26) is rotated, 1o "Device according to claim 1, characterized in that the control arrangement (16o) contains a lYlagazin switch (172) to sense the presence of a cassette (45) in the displacement position, the lYlagazin switch (172) in a circuit for the displacement mechanism (111 is connected) to the initial actuation to prevent displacement of the mechanism when the Uersetzungsstellung is empty _o 1098A4 / 0966