JPS6040101B2 - cassette tape player - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a cassette type tape player, which allows ejecting, fast forwarding, and rewinding operations to be performed easily.

For example, in Japanese Patent Publication No. 50-40523, one lever can be used to eject, fast forward, and rewind, but when fast forwarding or rewinding, the lever must be rotated horizontally to the left or right, and the distance the lever can move is The only drawback is that other parts cannot be placed close together.

The present invention uses a shaft that is movable in one direction and rotatable for ejecting, fast-forwarding, and rewinding, and by pushing a lever attached to the ball, the shaft can be ejected, rotated to the right, or left. Fast forward,
It was designed to allow rewinding and to automatically eject when the power switch was turned off.

The embodiments shown in the drawings will be explained below. FIGS. 1 to 6 show the front, top, right side, left side, back surface, and rear surface of the player as a whole. Here, 1 is a guide holder with the tape guide 3 of the cassette 2 attached on both sides, 4 is a cassette holder that holds the protrusion 5 of the tape guide 3 at the tip and has a protrusion 6, and 7 is the cassette holder of the cassette holder 4. Holding plate 8 holds one side, one end is holding plate 7
, Ikebata is an auxiliary plate rotatably attached to the guide holder 1, 9 is a main chassis, and 10 is a side plate attached to one side of the main chassis 9, which holds a timing stopper 11 and a sliding plate stopper 12 on the outer side. Projection 13,1
4. It has long holes 15-18.

Reference numeral 19 denotes the closest hole 2 which is movable horizontally with respect to the main chassis 9 and corresponds to the protrusion 21 provided on the charge 27.
0 and has a protrusion 22 protruding from the outermost hole 16, and is pulled forward by a sliding spring 23.

A hop-up spring 25 24 is located below the sliding plate 19.
This is the second sliding plate that is pulled forward by the aircraft, and is movable in the horizontal direction with respect to the main chassis 9 like the sliding plate 24 due to the hollow part 16 corresponding to the elongated hole 17. There is.

One end of the charge plate 27 is rotatably held on the inside of the guide holder 1 and the holding plate 7 with respect to the holding plate 7, and the other end is rotatable inside the side plate 10.

28 is an eject plate whose base is rotatably held by the main chassis 9, and an eject spring 29 is placed between it and the sliding plate 19.
On the other hand, an engaging portion 32 of the stopper piece 31 of the stopper 30 and a lock release piece 33 are provided.

34 is a sliding plate stopper spring that presses the sliding plate stopper 12 clockwise; 35 is rotatably held by the sliding plate 19, and is pressed clockwise by a hook spring 36 applied to the same plate 19; A protrusion 37 provided on the sliding plate 24 of
A hook plate 40 has an engaging part 38 that engages with the second sliding plate 24 and a protrusion 39 that corresponds to the release piece 33.
This is a cassette holder spring whose other end is hung on the cassette holder 4.

The stopper 30 is controlled by a control plate that is rotatably held on the back side of the main chassis 9 so that the stopper piece 31 is connected to the engaging portion 3.
2. In this case, 204 is an auxiliary spring, 203 is a suction plate fixed to the control plate 20, and 202 is a fixture that fixes the solenoid 201 to the main chassis 9. When the solenoid 201 is operating, the stopper piece 3
1 and the engaging portion 32 are kept locked. FIG. 7 shows the components of the side plate 10.

Furthermore, Figs. 8 to 10 show the process of inserting the cassette 2 from the state shown in Fig. 4 and setting the cassette 2 to the playing state, and Fig. 11 shows the relationship between the stopper 30 and the suction plate. It is something. Next, the operation will be explained based on this configuration. First, the solenoid 201 is put into operation, the control plate 200 is rotated through the suction plate 203, and the stopper 30 is locked.

Therefore, the eject plate 28 is in a locked state because the stopper piece 31 engages with the engaging portion 32. Now, as the cassette 2 is inserted along the tape guide 3 from the state shown in FIG.
Move it in the process shown in Figure 9. During the movement process of the irrigation plate 19, the protrusion 22 provided on the plate 19 comes to correspond to the sliding plate stopper 12 as shown in FIG. 8, and as the sliding plate 19 further moves, the protrusion 22 slides. The moving plate stopper 12 causes the ninth
Engage as shown.

Note that 41 is a movement restriction of the guide shaft/stopper 12 provided on the second sliding plate. Further, the hook plate 35 provided on the sliding plate 19 is pressurized so as to engage with the second sliding plate 24, and when the sliding plate 19 moves to a certain point from the state shown in FIG. 38 also engages the protrusion 37, and the sliding plate 19
The second sliding plate 24 will also follow the subsequent movement of. As a result, the guide shaft 41 also moves within the elongated hole 17 as shown in FIGS. 8 and 9 due to the movement of the second sliding plate 24, and the sliding plate stopper 12 rotates as shown in FIG. This will loosen the engagement with the protrusion 22.

Therefore, since the protrusion 22 engages with the sliding plate stopper 12, the cassette 2 is locked in the state shown in FIG.

At this time, in order to hold the sliding plate stopper 12 on the side plate 1, the slotted hole 121 is formed as shown in FIG. 19. The protrusion 22 is moved by a certain amount in the insertion direction of the cassette 2.

As the sliding plate 19 moves, the sliding plate stopper 2 also moves, so that the timing stopper 11 is rotated in the direction of arrow 42 at one end of the sliding plate stopper 12.

[The stopper 11 is pressurized by a spring 43 in the direction opposite to the arrow 42. ] Accordingly, the cassette holder 4 rotates as shown in FIG. 10 in order to disengage the protrusion 44 provided at one end of the cassette holder 4 that had been engaged with the groove 111 of the timing stopper 11, and the cassette 2 is moved vertically to correspond to the drive system on the main chassis 9. Therefore, after inserting the cassette 2 a certain distance in the horizontal direction, when the insertion is stopped, a part of the force of the cassette locking means represented by the sliding plate stopper 12 is utilized to utilize the cassette vertically moving means. By hitting the timing stopper 11 corresponding to the cassette holder 4, the cassette holder 4 is unlocked, rotated, and the cassette 2 can be set. When the cassette 2 is released from the cassette 2, the cassette 2 moves in the vertical direction, so there is no need to consider the pressure exerted by the cassette 2.

In ejecting, the stopper 30 is rotated in the opposite direction to the action of the solenoid 201 to disengage the eject plate 28, and the plate 28 is rotated toward the back of the player by the action of the eject spring 29. Accordingly, the second sliding plate 24 is unlocked by the release piece 33 of the same plate 28 to rotate the hook plate 35, and the second sliding plate 24 is restored.

When the sliding plate 24 is restored, the guide shaft 41 rotates the information plate stopper 12 so as to disengage the protrusion 22, so that the state shown in FIG. 10 returns to the state shown in FIG. 4. Furthermore, since the charge plate 27 also returns, the cassette 2 will fly out from the tape guide 3 due to the return force at that time. The above has explained the relationship between setting and ejecting the cassette at the playing position, but with reference to Figs. 12 and 13, the timing of setting the cassette at the playing position,
The relationship between the pinch rollers will be explained.

50 is a drive motor, and 51 is a cassette detection piece that is movably supported on the main chassis 9 and is pulled forward by a spring, and has a joint surface 52 to the charge plate 27 and a stopper portion 53.

54 is a head mounting plate which is movable in the same direction as the cassette detection piece 51 with respect to the main chassis 9, and holds the head 55 via an angle adjustment spring 56, while a lever 57 is engaged during fast forwarding and rewinding. It has a mating groove 58 and a recess groove 59 for the pinter roller mounting shaft 60 provided on the main chassis 9.

61 is a pinter roller 62 provided on the head mounting plate 54
64 is a holding shaft of a spring 63 that pulls the crimping and head mounting plate 54 toward the front, and 64 is a lock spring 6 attached to the rear surface of the main chassis 9.
5, a cassette movement detection piece 67 has an engaging part 66 that engages with the stopper part 53 of the cassette detection piece 51, protrudes from the hole 69 of the main chassis 9, and is attached to a hole (not shown) of the head mounting plate 54. ), and 70 is a hole through which the cassette movement detecting piece 67 of the head mounting plate stopper 64 projects upward.

With this configuration, when the cassette 2 is in the state shown in FIG. 4 (that is, when the cassette 2 is not set in the playing state as shown in FIG. A cassette movement detection piece 67 and a stopper piece 68 are made to protrude upward.

As a result, the engaging portion 66 engages with the cassette detection piece 51 that is pulled forward by the spring as shown in FIG.
The cassette detection piece 67 does not move unnecessarily below the main chassis 9. In this state, by making the stopper piece 68 of the head mounting stopper 64 engage with a hole (not shown) provided in the head mounting plate 54, the head mounting plate 54 also moves forward unnecessarily. There's nothing to do.

When the cassette 2 is inserted, the charging plate 27 also moves, so that the cassette detection piece 51 is moved in the direction of the arrow in FIG. 12 by the charging plate 27.

Accordingly, the engagement between 66 and 53 is released. When the cassette 2 is inserted and locked to the state shown in FIG. 9 and then moved as shown in FIG. 10 by the method explained earlier, the cassette movement detection piece 67 is still unlocked in the cassette 2. By pressing the stopper piece 68 in the direction of the main chassis 9, the stopper piece 68 also moves in the direction of the main chassis 9, unlocking the head mounting plate 54, and thus setting the mounting plate 54 in the playing state. It moves toward the cassette 2 and enters the playback state.

In this case, the spring 63 functions as a spring for moving the head mounting plate 54, and as a force for pressing the pin roller 62 in the playback state. In the playback state, use the lever 57 to close the head mounting plate 54.
By pressing in the direction of the arrow, the pin roller 62 is released from the capstan 71, and fast forwarding and rewinding are performed.

On the other hand, when ejecting is performed in the reproducing state, the head mounting plate 54 is forcibly restored via the holding shaft 61 as the eject plate 28 moves when it is disengaged from the stopper piece 31.

This allows the cassette 2 to move from the state shown in FIG. 10 to the state shown in FIG. As a result, the head mounting plate 54 is locked. Next, the relationship between eject, fast forward, and rewind will be explained with the help of FIGS. 14 to 22.

However, the solenoid 201 explained in FIGS. 1 to 11
shall be in working condition. First, Fig. 14 shows a state in which the cassette holder 4 and guide holder 1 in Fig. 2 have been removed, and Fig. 15 shows a state in which the fast forward and rewind mechanisms have been removed in Fig. 6. The following description will be made based on the main part diagram of FIG. 22. (Here, common symbols in Figures 1 to 13 will be used as they are, and new symbols will be used in explaining Figures 14 to 22.)
It is not attached to Figure 2.

) 81 is an eject shaft that is pushed in the direction of the arrow by a spring 82 and is rotatable in the opposite direction to the arrow; 83 is inserted into the tip of the eject shaft 81, and the eject shaft 8
The fast forward/rewind switching lever receives only one rotation.
It has protrusions 85 and 86 and a stopper piece 87 corresponding to end surfaces 841 and 842 of the fast-forwarding and rewinding cam 84.

88 is a transmission lever that is rotatable on the main chassis 9 and has one end projected in front of the eject shaft 81; 89 is a spring that pulls the cassette detection piece of 51; and 90 is rotatable with respect to the transmission lever 88. Attached to the stopper 30 at the tip.
A control bar having a driving protrusion 91 and a cam hole 92.
, 93 is provided between the lever bars 88 and 90, and the lever 90
94 is a flywheel, 95 is an idler, and 96 is an idler switching plate, which is held on the lower surface of the main chassis 9 by an elongated hole 97 and is constantly rotated by the flywheel 94. It looks like this.

96 is a cam 97 integrally provided with an idler 95.

99 is a fast forward/rewind release plate that operates in conjunction with the eject shaft 81 when pushed; 98 is a spring; and 100 is an hydra arm.

Here, the drive shaft 91 is rotated by a spring 101 as shown in FIG.
The control lever 90 has a ratchet rotation detection piece 102 which applies a rotational force in one direction, and when the coaxial shaft 91 rotates, the rattle rotation detection piece 102 presses the control lever 90 against the spring 93 in the winning direction.

That is, when the detection piece 102 presses the control lever 90 in the direction of the spring 93 and the rotation of the drive ball 91 stops, the lever 90 moves toward the drive shaft 91 due to the action of the spring 93 since there is no pressure applied by the shaft rotation detection piece 102. Pressure is applied in the direction of . Furthermore, when the cassette 2 is in the state shown in FIG. 4 or FIG. 10, one end of the transmission lever 88 corresponds as shown in FIG.
rotates about the shaft 881 as a fulcrum, and a lever 90 connected to the lever 88 can be used to eject the stopper 30 to rotate it. Meanwhile, play (play)
When the eject shaft 81 is rotated, one surface of the stopper piece 87 hits the transmission lever 88 as shown in FIG. 18, locking the eject shaft 81 in that state, while the lever 57 is operated by the cam 84, and the head mounting plate 54 is moved. Nigashi,
It enters fast forward and rewind mode.

At this time, to cancel fast forwarding or rewinding, the eject shaft 81 must be pushed, but if the eject shaft 81 is pushed too much, the eject will continue, so to prevent this, the lever 5 is pressed as the eject shaft 81 rotates.
7 in the direction of the arrow shown in FIG. 16, the fast forward/rewind release plate 99 can be rotated in the direction shown by the arrow in FIG.

As the fast-forward/rewind release plate 99 rotates, the protrusion 9 of the release plate 99 aligns with the eject shaft 81 and the lever 88.
91 , the amount of movement of the eject shaft 81 due to pressing is controlled by this protrusion 991 .

Therefore, during fast forwarding or rewinding, the eject shaft 81
When pressed, the release plate 99 causes fast forwarding. The user will only have to do the work of canceling rewind.

(To explain this point a little bit, by pushing the eject shaft 81, the locks 88 and 87 shown in FIG. while rotating in the direction of the 18th
Recover as shown in the diagram. ) Next, the relationship between the lever 88 and the cam 96 will be explained.

First, when the reel drive shaft 91 is rotating during play, the shaft rotation detection piece 102 overcomes the pressure of the spring 93 and moves the lever 88 to the clock (head 5).
Pressure is applied in the direction of 5). At this time, as the idler 95 rotates, the cam 96 also rotates within the cam hole 92.

(In this case, the relationship between the cam 96 and the cam hole 92 is
0 moves alternately clockwise and counterclockwise, but the cam hole 92
It is in a relationship that it does not engage with the cam portion 921 of. ) Figure 20A shows a state in which the ball rotation detection piece 102 is also pressurized in one direction, and Figures 20A and 20C show the rotational relationship of the cam 96 at that time.
Now, the rotation of the reel drive shaft 91 is stopped by the shaft rotation detection piece 1
02 is also released, the lever 90 is pressed in the opposite direction by the action of the spring 93, and when the cam 96 rotates within the cam hole 92, the cam part 9
21, and by the rotational force of the cam 96, the lever 9
0 in the direction of the eject axis 81.

That is, the lever 90 performs the same operation as when the eject shaft 81 is pressed, and a rotation command can be given to the stopper 301, thereby allowing auto-ejection.
FIG. 21A shows the relationship with the lever 90 when the reel drive ball 91 is not rotating, and FIG. 21A shows the state where the cam 96 is about to engage the cam portion 921. Next, when the eject shaft 81 is rotated to the right or left during play, the lever 90 is also pushed in the direction of the stopper 30 by the lever 88 in order to lock the lever 88 as shown in FIG. become.

On the other hand, as the stopper shaft 81 rotates, the idler 95 moves in a direction separated from the reel drive shaft 91, although the details are lacking, and as explained earlier, even if it moves in that direction, it still rotates. When the reel drive shaft 91 is being rotated by the driving force from another drive system, the cam 96 rotates within the reel hole 92 as shown in FIG.

When the reel drive shaft 91 stops rotating, the cam 96 engages the cam portion 921 and moves the lever 90 in the direction of the stopper shaft 81.

Accordingly, the lever 88 rotates about the shaft 881, and is unlocked from the lever 87, resulting in the state shown in FIG. 18. In other words, it has the same effect as pressing the stopper shaft 81. If the state shown in FIG. 19 is now in fast forward mode, even if it returns to the state shown in FIG. 20, if the reel drive shaft 91 is not rotating, the cam 96 will engage the cam portion 921 again and eject. Become.

On the other hand, if the state shown in FIG. 19 is rewinding, when the state returns to the state shown in FIG. 20, it will be in a play state, and play will continue from the tape winding table. In the above embodiment, the manual operation is such that pushing the eject shaft 81 allows ejecting, rotating the eject shaft 81 for fast forwarding and rewinding, and then pressing the eject shaft 81 for recovery. Lever 88
Due to the relationship between the support part of the lever 88 and the taper of the stopper 87, when the eject shaft 81 is rotated in the direction opposite to the rotation during fast forwarding and rewinding, the tip of the lever 88 is slid along the taper of the stopper 87. By allowing some degree of freedom in unlocking, the eject shaft 81 and the parts attached thereto can be protected.

According to the above embodiments, even one axis can perform eject, fast forward,
Rewinding can be performed, and the above-mentioned operation requires only a small portion of the entire surface of the player.

In addition, automatic recovery of auto-eject, fast-forwarding, and rewinding can be performed, which is advantageous in practice. Here, when ejecting, the stopper 30 is rotated using the lever 90, but by providing the solenoid 201 in series with the power switch 800 as shown in FIG. 23, when the switch 800 is turned off, the solenoid The operation of 201 will stop.

At this time, by selecting a large spring force for the auxiliary spring 204, the spring force of the spring 29 causes the spring 28 to return to its original position, thereby disengaging the 31 and 32 from each other. It turns out. The power switch 8 can be used as the player's own engine key or the car's engine key, and a switch 801 is provided in the input circuit of the solenoid 201, which turns on when the cassette is inserted into the cassette slot as shown in FIG. Good too.

Alternatively, the movement of the lever 90 when moving the stopper 30 may be detected and the switch 802 may be opened as shown in FIG. 25.

As explained above with reference to the embodiments, the present invention is advantageous because it has fast forwarding, rewinding, eject switching, recovery at fast forwarding and rewinding with one touch, and auto-eject function when the power switch is turned off. It is.

Furthermore, since the pinch roller is in the ejection state when the power switch is turned off, the pinch roller is also protected.

[Brief explanation of the drawing]

Fig. 1 is a front view of an embodiment of the present invention, Fig. 2 is a top view, Fig. 3 is a right side view, Fig. 4 is a left side view, Fig. 5 is a rear view, and Fig. 6 is a rear view. , Figure 7 is a diagram of some of the components,
FIGS. 8 to 10 are partial operation diagrams, FIGS. 11 to 22 are partial detailed configuration diagrams, and FIGS. 23 to 25 are electrical circuit diagrams of the main parts. 30...stopper, 81...eject shaft, 90...reno, 201""" solenoid. Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7 Figure 8 Figure 9 Figure 10 Figure 11 Figure 23 Figure 24 Figure 25 Figure 12 Figure 13 Figure 14 Figure 16 Figure 18 Figure 19 Figure 15 Figure 17 Figure 21 Figure 22

Claims (1)

[Scope of Claims] 1. A solenoid that holds a stopper for locking the cassette in the playing position when energized, which is pressurized in one direction and can move in the opposite direction to the direction of pressure, while also being able to rotate in both directions. The eject axis, an eject command applied to the eject axis drives the stopper to unlock the cassette, while when a fast forward or rewind command is applied through the eject axis, it moves in one direction and releases the release command. A cassette-type tape player is provided with a control lever that restores the operation within a range that does not drive the stopper when the stopper is applied. 2. The control lever is pressurized in one direction when the rotation of the reel drive shaft stops, and receives driving force from the tape drive system to automatically eject, fast forward, and restore the play state from the rewind state. A cassette-type tape player according to scope 1. 3. The cassette-type tape player according to claim 1, wherein the amount of movement of the eject shaft is smaller during fast forwarding and rewinding recovery than during ejecting. 4. The control lever is provided with a hole having a cam portion, and a cam that constantly rotates is provided in the hole, and the cam portion and the cam are engaged with each other by movement of the control lever. Cassette type tape player.