JPS5977670A - Loading means for automatic replacing device of cassette - Google Patents

Abstract

PURPOSE:To attain precisely loading with a simplified means by switching the 1st operation pulling out a cassette from a magazine and the 2nd operation loading the cassette to a driving means through two cams. CONSTITUTION:The tape cassette taken out from the cassette magazine and located on a prescribed position is charged to a cassette holder 73 by a slider 69 through a gear 86, a main driving gear 88 and a driving gear 93. If the gear 86 is turned by a prescribed angle, the driving gear 93 is separated from the main driving gear 88 by the action of a cam fixed on the lower surface of the gear 86 and a lever 99 is turned around a pin in the clockwise direction by the action of a cam 96 fixed on the upper surface of the gear 86 to contact the cassette holder 73 with a tape recoreder 19. Thus, the driving in the two directions is performed by the switching of the cams, so that the operation can be attained only by one motor, the device is reduced at its size and precise operation can be executed without malfunction.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a rope ink mechanism for an automatic cassette changing device such as a cassette type tape recorder, and more particularly to a rope ink mechanism for extracting force from a cassette magazine. A vortex loading mechanism is used for automatic cassette exchange in which the operation in one direction and the operation in the second direction for mounting the pulled-out cassette on the tape drive mechanism are performed independently and successively from one motor. Regarding the mechanism.

BACKGROUND TECHNOLOGY AND PROBLEMS In order to realize long-term play in the audio system, a tape recorder stores multiple tape cassettes in advance and transfers these multiple tape cassettes to one @next tape. An automatic cassette changing device is used, which is automatically attached to the tape drive mechanism of the recorder and replaced after play has finished. The loading mechanism must also be simplified and miniaturized, and in addition to being miniaturized, it must also be more reliable in operation.

OBJECTS OF THE INVENTION The present invention has been made in view of the above-mentioned circumstances, and an object thereof is to provide a loading mechanism that is equipped with a drive mechanism that is simplified and downsized, and yet operates reliably.

Summary of the Invention In order to achieve the above object, the present invention is configured to be capable of reciprocating in a first direction in which a cassette is pulled out from a cassette magazine and in a second direction in which the pulled out cassette is mounted on a tape drive mechanism. In the loading mechanism of the automatic exchange device, (a), a main gear that is rotated forward and backward at a predetermined angle by a drive source, (b), a main gear that meshes with this main gear at all times, and (C), this main gear. a driven gear coupled via a clutch; (d) a first direction driving means driven by the driven gear; and (e) first and second cams formed on the main gear. ,(f),
C) a driving means in a second direction that is interlocked with the second cam and driven against the urging means;
The period in which the clutch is engaged by the second cam and the second cam
The period during which the driving means in the second direction is reciprocated by the cam is independent from each other.

With the above configuration, the drive in two directions can be switched via the first and second cams formed on one main gear, so the structure can be simplified and downsized. Moreover, since the operations in the two directions driven by the cam mechanism are configured to be performed in independent operation periods, there is no room for malfunction to intervene in the operations in the two directions. Operation becomes reliable.

Embodiment An embodiment of the present invention applied to a tape recorder equipped with an automatic exchange device in which a 10-volume compact cassette magazine is used will be explained based on the drawings. The outline will be explained.

As shown in FIG. 1, a cassette magazine insertion window (5) having an opening/closing window (4) is provided on the front surface (3) of the outer casing (2) of the cassette deck (1). An index card (6) can be inserted into this opening/closing window (4), and ten program gym push buttons (7) are provided at positions corresponding to the left and right columns of this index card (6). It is being Other power switch (8) on the front (3)
, Start/stop dual use (9), change button OQ to change to the next tape without waiting for the end of one tape
), rewind button, fast rewind button, eject button 03
Operation buttons such as i are provided.

As shown in Figure 2, the interior of the cassette deck (1) receives four cassette magazines (hereinafter simply referred to as magazines) inserted through the magazine insertion window (5), and can move in the xF and XB force directions as shown in the figure. Left and right guides (
161+1η, this guide (16) [7) A moving device that moves the magazine tt51 on the XF and xB force directions, and a YF force direction cassette perpendicular to An automatic cassette changing device Qυ consisting of a loading device +21 attached to a tape recorder (In) is provided at the top of the tape recorder (In).

Next, the magazine 0 is molded, for example, from a transparent plastic material, and as shown in FIGS. 6A and 6B, it has a box shape with an openable front surface, and a vertical partition plate (c) is provided inside the top. It is structured so that a 10-volume cassette can be stored vertically, and the bottom plate has long guide grooves (25
1 are formed respectively, and this guide groove (c) is located at the rear side CI! of magazine u9 in FIG. 6A. 6), and is connected to the longitudinal groove (2η (Fig. 4A)) formed on this rear surface t20. Also, on the front chisel plate sear a, there is a rack gear (
) is formed along the anterior direction. And cassette detsu =? (1) The magazine inserted into the magazine ([■ is the tip of the bottom plate (goods) at the front and the step (30) placed on the guide rollers of the guides a and sttn at the rear. is configured to be moved.

In addition, when storing the top surface, the index card (
6) is removed from the opening/closing window (4) of the cassette deck (1) and has a recess formed therein, and a protruding piece (34) for holding the card is provided at an appropriate location. It is being Therefore, this magazine is used as a storage box for a plurality of cassettes during storage, and the contents of the stored tapes can be read using the index card (6), making it very convenient for organization.

Further, as shown in FIGS. 4A and 4B, vertical stripes 137) for position detection are provided at positions corresponding to each of the cassettes stored on the back surface of the magazine 4. (1) It is configured to be detected by a reflective photo sensor provided at a predetermined position.

In addition, as shown in Figures 4A and 4B, a magazine (15
) at positions corresponding to each of the cassettes to be stored on the back side of the cassette.
are formed respectively. And the knob state and 0 row are formed by four parts (4 (l and (4)) due to the elastic force of the plastic material.
j) is configured to be held within. Therefore, if the knob 13a) G31 corresponding to the stored tape is set in advance according to the playback characteristics of the stored tape,
Main f+44 provided inside the cassette deck (1)
) (451+461 etc. catch the characteristics of the tape to be pulled out and played in advance. Then, based on this information, the playback characteristics of the tape recorder uI are automatically switched.
Since it is possible to automatically control the tape recorder output according to the characteristics of the tape.

Next, the guide (on the IQ side, as shown in Figures 2 and 5 to 7, the U-shaped left and right guide frames (:) (υ6υ, The 7-piece lunge is rotatably mounted.
A plurality of left and right guide rollers with (Fig. 7)
This guide roller consists of J551 and
54165) The cassette magazine is configured to be placed on the ground and moved.

As shown in FIGS. 2 and 6, the moving device is connected to a motor (X57), a worm gear and a worm wheel (6), and a gear (931) attached to a fixed frame 60.
(Gears (64) and -, which are rotationally driven via R (63) etc., mesh with the rack gear Q formed on the bottom plate of the magazine (14) to move the magazine (14) in the XF and xB force directions. It is configured to allow

On the other hand, the loading device (2) has a guide frame (with an opening (67) at the top as shown in Figure 6).
A slider (6) that moves in the YF and YB force directions perpendicular to F
0 is set. Before and after this slider (mark 6), an L-shaped suppression rod (11) as shown in FIG.
) is integrally provided, and this pressing rod (70)
+71) is the opening (67) of the guide frame (610).
A rack gear (a groove) is formed on the right side surface of the slider (t69) in FIG. 6, which protrudes upward from the slider (t69).

The cassette holder (7:il is an inverted U with a guide part (14J) inclined at the entrance, as shown in Figs. 2 and 7).
It is formed in a letter-like shape and is configured to hold a shikaset (76) between an inwardly curved leaf spring (75) provided on the inner side thereof. The slide plate (77) is fixed in a substantially horizontal direction.The slide plate (77) is guided by a fixed vertical rail (two horizontal rails 18o provided between 791), and the tape recorder 9 It is supported so that it can reciprocate in the direction.

Next, as shown in FIG. 2 and FIGS. 8 to 12, the slider (
69) in the YF and YB force directions (first direction) in FIG. The mechanism will be explained.

The large gear (main gear) □), which is rotationally driven from the motor YI8j to the worm (to), the worm wheel Ia, and the pinion egg, is rotatably attached to the vertical shaft (8D) as shown in Fig. 9. The main drive gear (89) is rotatably attached to the vertical shaft (89), and the main drive gear (89) is in constant mesh with the large gear (C). The slip gear (9
21 are frictionally connected. And the slip with (
The slider drive gear (!9th floor) meshes with the rack gear σ of the slider (to), and the vertical shaft (94
It is pivoted to 1.

On the upper surface of the large gear, there is formed a second arc-shaped cam bell protruding upward from the upper surface, and on the lower surface, there is formed a first arc-shaped cam bell protruding downward from the lower surface. It is formed. On the other hand, a lever 09 rotatably attached to the fulcrum pin iron is provided between the slide plate ση and the large gear (A). The tip of this lever guard is connected to the slide plate (7'0) via a tension spring 4, and is biased by this spring force to the - side end surface (101) of the lever (99).
) is in contact with the vertical member (102) of the slide plate (7η).The lever 09 has a bottle (105) at a predetermined position.
) is provided to protrude downward, and a second cam ((5) with a single canine tooth is attached to this pin (103) so as to be engaged when the large gear rotates a predetermined angle. There is also a vertical shaft l8 between the slip gear (92 and the compression spring ωυ).
A switching plate (104) is provided which can slide up and down while being guided by the vertical axis @η. A protrusion (105) is provided at a predetermined position on the switching plate (104), and the first cam (105) of the large gear is attached to the protrusion (105).
The gears are configured to lock together when the large gear (C) rotates by a predetermined angle.

That is, when the second cam (1) is rotated by a predetermined angle in the direction of arrow a from the state shown in FIG. The state shown in the figure is reached.At this time, as shown in Fig. 11, the first cam (91) engages with the protrusion (105), and the protrusion (105) is pressed downward, so that the switching plate (104) is pushed downward.The second figure shows the frictional connection (clutch) between the main drive gear and the slip gear, which have been connected since the start.
is released and the rotation of the slider drive gear (131 is stopped. Then, when the single canine tooth continues to rotate in the direction of arrow a, the second cam (96) engages with the pin (103). , the lever (99) is pushed by the second cam, and the spring (
It rotates clockwise against one horse. For this reason, the slide plate (771 and therefore the cassette holder (73) are guided by the horizontal rail, and the tape recorder moves in the direction of the flow. At this time, the lever (9ω) has one end surface (101) formed in a pivot shape. Vertical member of slide plate (/7) (
102), but since the movement of the lever (9ω is due to rotation) and the movement of the slide plate (1η is parallel movement), the amount of movement of the tip of the lever (9ω is parallel movement) The quantity and shi become large, and the spring a [phase] is stretched during the rotation of this lever +9.Then, the large gear (86
) rotates a predetermined angle, that is, at the cassette mounting position, switch w4 (110) is activated and motor Y (84) is stopped.

Next, when the motor Y137J and therefore the large gear (86) rotate in the opposite direction indicated by the arrow, the lever (99) rotates back due to the restoring force of the tension spring rope, and accordingly, the space between the slide plates also moves back, When the end face of the slide plate (77) hits the vertical plate (J&), the space between the slide plates stops.Then, when the large gear side continues to rotate in direction b, the first cam (97)
Since the engagement between the and the protrusion (105) is released, the switching plate (104) moves back, and frictional coupling with the slip gear +921c = main drive gear is performed, and the slider drive gear (
93 rotates to move the slider (61) in the YB force direction.

In this way, movement in two directions is performed by switching by the second and first cams t961t9'n formed on the upper and lower surfaces of a single canine tooth. Then, the first cam η (in this example, the first cam 00 is in the non-operating position) drives the main drive gear (slip gear t9' as a decoy).
! There is a period in which YF and YB are moved in the same direction (first direction) when J is connected, and a period in which movement in this direction is stopped and the tape recorder is moved in the t1 direction (in the female 2 direction) by the second cam t5. ) are independent from each other. Therefore, the device is greatly simplified, and there is no malfunction in the amount of movement in two directions, and the operation is reliable.

Next, the operation of the automatic cassette changing device constructed as described above will be explained mainly with reference to FIG.

When replacing the cassette, first remove the index card (6) from =Ijin US, open/close iω,
Insert the magazine inside through the front magazine insertion window 5). Inserted magazine switch 5W1 (
When 107) is activated, motor J is bottom plate V when magazine is used
, meshes with rack gear I281 formed in W, moves C magazine u4 in direction Xr, and switches switch 5W2 (
108) is turned off, the poor motor X (57) stops L2,
The magazine 't151 is stopped at the reference position.

On the other hand, after inserting the magazine, insert the index card (6
) into the opening/closing window (4) on the front side of the deck (1), and press the program button @11 (7) corresponding to the tape written on the index card (6) with the desired button.
The control circuit shown in FIG. 15 is programmed in this order,
Note 1: Ha is done. Index cards (6
) If you press the program push button (7) corresponding to the description, the program will be programmed in this order, making the 11th work very easy.

When the start) old 9) is pressed, the motor XE' moves the start shift and the magazine (■ω) in the XB force direction, and the front H12 photosensor 1371 detects and counts the vertical stripes on the back of the magazine. As a result, the programmed cassette is stopped at a predetermined take-out position (slider (center position of movement).Then, the motor Y is started 17 and the canine Higashida is rotated in the direction of arrow a. , As mentioned above, first, the rack gear ('1'!J of the slider ()) is driven via the slider drive gear (S), and the slider I is moved in the YF direction.

For this reason, the pressing rod at the rear of the moving slider 9i1 (
71) passes through the longitudinal groove t27) on one side of the magazine and enters the guide groove within 4cm, and with the required force on this guide groove (c), the set is pushed out and placed into the cassette holder (7th floor). When the JIb large gear rotates by a predetermined angle, the first cam ((0) releases the clutch of the C slip gear (9) and stops the movement of the slider shaft in the YF force direction. The second cam (愼;) moves the cassette holder (
The cassette moves to the tape recorder tll side, the cassette is loaded, the switch sw, (iio) is activated, and the motor Y stops tF.

1, and the tape is played, but as before, the playback characteristics of the tape to be changed by the selection groove (3) on the back of the magazine Uω are set in advance by the switch 141-(
40, the playback characteristics are automatically switched depending on the characteristics of the tape during performance.

When the performance is finished, the motor Y'i8 is started again and the above-mentioned through-cassette set holder (7 shallow force cage returns, then the cassette) (761 is the pressing rod (761) at the front of the slider
0) It is pushed and stored in the magazine (1).
7, switch 5W5 (109) turns on and motor Y0 force S stops. Then, the motor
37)! When the count value matches the programmed value '1'', the motor stops.Then, the motor Y is rotated once again.
~te^0's own cassette loading operation is repeated. Then, when all the programs are completed, the cassette is moved into the magazine (when the cassette is retracted, motor X57) is started, and the switch 5
Magazine 1115 to the position where W2cios) is turned off.
1 is moved in the XB force direction, and the magazine Uω is made to protrude from the cassette deck (1) (7)/f resin entry window (5).

In addition, although detailed explanation will be omitted, there is one samurai who pressed the eject button before the end of the program, and one temple who pressed the change button 3 without waiting for the end of the performance of the first volume. 14th
Operations such as those shown in FIG. 71 are performed and these operations are controlled by a control circuit shown in FIG. In JL, a main gear is constantly meshed with a main gear which is rotated forward and backward by a predetermined angle by a drive source, and a driven gear coupled to this main gear via a clutch is driven in a first direction. A first cam formed on the main gear engages and disengages the clutch, and a second cam, also formed on the main gear, moves in the interlocking direction to the second direction against the urging means. The driving means is configured to be driven. Therefore, since it is sufficient to drive the main gear with one motor, the structure is simpler than the two-motor type in which the first and second directions are driven by separate motors, and the G, W, overall Miniaturization i is extremely on the shoulder side.

In addition, the first cam engages the clutch R1 and drives the driving means in the first direction L5.
Since the period in which the driving means in the second direction is driven in conjunction with the second cam is configured to be performed in separate periods, malfunctions may interfere with the movement in the two directions. There is no room for this, and reliable operation is guaranteed.

[Brief explanation of the drawing]

The figure shows an embodiment of the present invention applied to a tape recorder with an automatic exchange device that uses a 10-volume compact cassette magazine. A plan view of the interior of the deck, Figures 6A and 6B are perspective views of the magazine, Figure 4A is a partial rear view of the magazine, Figure 4B is a sectional view taken along line B-B in Figure 4A, and Figure 5 is a perspective view of the magazine. FIG. 6 is a view taken along the line V-V in FIG. 2, FIG. 7 is a view taken along the Vl-Vl line in FIG.
tt line arrow view, FIG. 8 is a Vl-Vl line arrow view in FIG. 2, and FIG. 9 is a TX- in FIG.
IX line arrow view, Figures 10 to 12 are explanatory diagrams of cam operation, of which Figure 11 is an explanatory diagram showing the relationship between the second cam and the first cam at the same time, and Figure 16 is an automatic exchange diagram. The control circuit diagram of the device, Figure @14, is the 70-chart of the device. In addition, in the symbols used in the drawings, (tω...Cassette magazine (11
・・・・・・ Tape recorder (tape drive mechanism) +
2 (ll... Loading device (7t9... Tape cassette (饥...
・・・・・・ Motor Y (drive shaft source) (□□□・・・・・・
・・Large gear (main gear) (8 gears)
・Main gear +9+11 ・・・・・・ Friction plate (clutch) +91) ・・・・・・・・・Compression spring (clutch) (scream ・・・・・・・・・ Slip gear (driven gear)
(!1Ibl...... Second cam (9η
...... First cam (99) ... Lever (second direction drive means) (1 (F+) Bin (second direction drive means) Duck... ...Tension spring (biasing means)
It is. Agent: Yoshio Katsunekane, Toshiya Sugiura, Figure 4A/Figure 4B, Figure 10, Figures 11 to 12 (Voluntary) Procedure Amendment 1. Display of the case Special Petition No. 187678 No. 2 of 1982, QIIOg
″゛ Loading mechanism of automatic cassette exchange device (21
8) Sony 4″1, Shikisha 6, number of inventions increasing due to amendment - above 1

Claims (1)

[Claims] A first direction for pulling out the cassette from the cassette magazine;
In the loading mechanism of the automatic exchanger, which is configured to be able to reciprocate in a second direction for loading the pulled-out cassette into the tape drive mechanism, (a) a main gear that is rotated forward and backward at a predetermined angle by a drive source; and (b), a main drive gear that is always meshed with this main gear, and (
C) a driven gear coupled to the main gear via a clutch; (d) a first direction driving means driven by the driven gear; and (e) a first direction drive means formed on the main gear. (f) a driving means in a second direction that is interlocked with the second cam and driven against the urging means; 0), the first cam described above; An automatic cassette changing device characterized in that a period for engaging the clutch of the cam l trowel and a period for reciprocating the driving means of the second cam l trowel in the second direction are independent from each other. loading mechanism.