JPS5931133B2 - cassette tape player - Google Patents

Description

[Detailed Description of the Invention] The present invention allows a sub-chassis having a capstan, reel stand, etc. to be brought close to the surface of the fixed chassis during performance, and moved away from the fixed chassis when not played (when no cassette is connected). The type that is set in the position (generally called the Stahl type).

) relates to a cassette type tape player, and its purpose is to be able to automatically set the playing state by detecting the end of rewinding the tape. Conventionally, there are tape players of this type that, in response to a rewind end signal, keep the rewind electric circuit open until the next manual operation command is received, and others that eject the rewind circuit.

However, in the former case, if the device is for use in a car, the player will have to perform play operations while driving, which will impede safe driving of the car.

On the other hand, in the latter case, the cassette must be set again. The present invention eliminates these drawbacks.

The present invention will be explained below with reference to an embodiment of the drawings. Fig. 1 shows the main part of the player, Figs. 2 and 3 show a part thereof, and Fig. 4 shows the main part of the player.
The figure shows the auto-eject system, and FIGS. 5 to T show the operation of the stopper portion of the auto-eject system. [Note that the movement relationship of the sub-chassis with respect to the fixed chassis is well known to those skilled in the art, and the details of this point are omitted. ] Here, although the cassette is not shown in FIG. 1, it is in a playing state, and the sub-chassis 14 is locked close to the fixed chassis 13 with the stopper shaft 11 provided on the chassis 14 engaging with the stopper 12. has been done.

Reference numerals 15 to 20 are a motor, a force set support pin, a capstan, and a reel stand provided on the subchassis 14.

21 and 22 are force setting guides, 23 to 28 are 15 to 20
Holes 29 are mounting plates for the pinch roller 30 for projecting each component onto the fixed chassis 13, and the pressure force of the pinch roller 30 against the capstan 18 is increased by the base 32 on which the head 31 is mounted. It can be decided.

In this case, the head base 32 is installed movably in one direction on the fixed chassis 13 by pins 33 to 35, and is constantly pulled by a spring 36 in the direction in which the holes 27 and 28 are located. Reference numeral 37 is a lever for performing fast forward, rewind, and eject operations, and a pin 38 that extends vertically at the tip and corresponds to the head base 32 as shown in Fig. 3A, and a lever that drives the fast forward and rewind systems from the play system It has a pin 38' for controlling the lever 40 that switches the system, and when the lever 37 rotates in the direction of arrow B or C, the pin 38 moves the head base 32 in the direction opposite to the biasing force of the spring 36. , remove the pinch roller 30 from the capstan 18.

At the same time, the lever 40 is rotated by the pin 38' in the direction of the arrow about the pin 41 as a fulcrum, as shown in the opening of FIG. 3, and the drive system of the reel stand 1 is switched. On the other hand, if the lever 37 is pushed in the direction of arrow A, the pin 38 pushes the head base 32, and the pin 38 rotates the stopper 12 to rotate the rewind detection plate 39, causing it to engage with the stopper shaft 11. Take a look. As a result, the sub sear 14
force setting support pieces 16, 17 which were separated from the fixed chassis 13 by a predetermined distance and projected above the fixed chassis 13;
Capstan 18 and reel stands 19 and 20 are the same chassis 1
A knob 4 is located below 3 and is provided at the base of the lever 37 so as to set a force set (not shown) along the surface of the fixed chassis 13.
Allow to move in 2 directions. 43
is an eject command board which has a pin 44 corresponding to the rewind detection board 39 and applies an eject command to the stopper 12 when it moves in the direction of the arrow in response to a tape end signal (which may be mechanical or electrical).

In the above explanation, the system in which the stopper 12 and the rewind detection plate 39 are integrally configured is already known in products and literature, but in the present invention, by having a separate configuration as shown in the figure, rewinding is completed. Sometimes it can be automatically set to play.

Details of this point will be explained below with the help of FIGS. 4 to 7 and FIG. First, the stopper 12 is rotatably supported by a shaft 45 provided on the fixed chassis 13;
It has cut and raised pieces (which may be separately provided projecting pieces) 46 and 47.

On the other hand, the rewind detection plate 39 has an elongated hole 48 that fits into the shaft 45, and a cut hole 49, and is constantly applied with a force to rotate clockwise by a spring 50. The eject command plate 43 is supported by a long hole 52 that fits into a shaft 51 provided on the lower surface of the fixed chassis 13, and has a hole 54 having an engaging portion 53. Similar to the shaft 51, 55 is a foot crawler rotatably supported by a shaft 56 provided on the fixed chassis 13, and the cam 5 rotates within the hole 54.
It has 7.

58 is a capstan shaft which is integrated with the capstan 18 and the flywheel 61.

59 is an idler; 60 is a roller that is always connected to the capstan shaft 58 and transmits the rotation of the coaxial shaft 60 to the foot roller 55; 62 is rotatably supported on the upper surface of the sub-chassis 14 by a shaft 63; the stopper 12 locks the stopper shaft 11; The detection arm is disposed at a position where one end is joined to a part of the eject command plate 43 during operation, and the other end is positioned on the reel base plate 201 of the reel base 20.

In this case, a stop plate 65 having protrusions 64, 64 is provided on the reel base plate 201 via felt. 6
Reference numeral 8 denotes a hole provided in the sub-chassis 14 into which the pins 3 fit, and may have a simple R shape as shown at 67 at the opening in FIG.
. . . during rewinding, P . . . pre-temporary, F . This allows the lock to be maintained.

In the above structure, at the pre-temporary stage, the pin 38' engages with the hole 66 at the valley P position as shown in FIG.

Here, the rewind detection piece 39 is passed through the lever 37 to the pin 38.
When a force is applied to rotate the piece 46 counterclockwise, the cut and raised piece 46
, 47, the stopper 12 also rotates counterclockwise following the counterclockwise rotation of the detection piece 39. This releases the lock between the stopper 12 and the stopper shaft 11, and the sub-chassis 14 including the stopper shaft 11 moves to the non-performance position. On the other hand, in the above-described performance state, while the reel base plate 201 is rotating, the slip plate 65 is in a state where it can rotate. To explain the relationship between the reel base plate 201 and the roller 60, since the foot crawler 55 also rotates as the roller 60 rotates, the cam 57 engages the engaging portion 5 of the eject command plate 43.
However, by rotating the detection arm 62 clockwise in the state before the engagement, the indicative command plate 43 rotates counterclockwise about the shaft 51 as a fulcrum, and engages the engagement portion 53. The cam 57 is rotated so that it is not engaged. Thereafter, the slip plate 65 slips and the detection arm 62 rotates counterclockwise, returning to the state shown in FIG. When the rotation of the reel base plate 201 stops, the rotation of the detection arm 62 also stops, so the cam 57 engages with the engaging portion 53 during rotation, and the rotational force of the cam 57 moves the eject command plate 43 to the idler. 59 direction. As a result, the pin 44 provided on the command plate 43 unlocks the stopper 12 and the stopper shaft 11 in the same way as the pin 38 in order to rotate the rewind detection plate 39 counterclockwise about the shaft 45. is carried out. When the lever 37 is operated and the pin 38 is set in the valley R of the hole 66 as shown in FIGS. The piece 47 is located near the entrance of the cut hole 49 as shown in FIGS. 4 and 6.

While the reel base plate 201 is rotating in this state, the detection arm 62 also detects the eject command plate 4 before the cam 57 rotating through the roller 60 engages the engaging portion 53.
3, the cam 57 simply rotates within the hole 54. When the rotation of the reel base plate 201 stops, the detection arm 62 also stops moving as in the case of the reel plate 1, so the eject command plate 43 stops rotating, and the cam 57 engages the engaging portion 53 of the hole 54 in the process of rotation. Then, the eject command plate 43 is moved in the direction of the idler 59. As a result, the pin 44 moves from the state shown by the dotted line in FIG. 7 to the state shown by the solid line in FIG. 7, and rotates the rewind detection plate 39 counterclockwise.
At this time, the cut and raised piece 47 enters the cut hole 49, and the stopper
Since no release command is applied to the stopper 12, that is, there is no rotational movement of the stopper 12, the stopper 12 continues to lock the stopper shaft 11. On the other hand, the rewind detection plate 39
As the pin 38 rotates, the part 391 acts to push up the pin 38, so by setting the force of the head base 32 to be weaker than this pushing up force, the pin 38 will be pushed up a certain distance. ' is forcibly engaged with the valley P by the force from the head base 32. The unwinding detection plate 39, which has guided the pin 38' to the valley P, rotates clockwise about the shaft 45 by the action of the spring 50 and returns to the position shown in FIG. That is, with this configuration, even when the movement of the reel base plate 201 that detects the end of the tape stops, the eject is performed if the tape is in play mode or fast forward, and when rewinding, the play mode is automatically set using the above structure. can be restored to. Therefore, according to the present invention, when used in an automobile, the operation from the rewinding process to the playback process is facilitated, which greatly contributes to safe driving.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a force setting type tape player according to an embodiment of the present invention, FIGS. 5 to 7 are diagrams for explaining the operation. 11... Stopper shaft, 12... Stopper one, 13... Fixed chassis, 14...
・Sub chassis, 32...Head base, 37
... Lever, 39 ... Rewind detection plate,
43... Eject command board, 62...
Detection arm, 55... Foot crawler.

Claims (1)

[Claims] 1. A stopper shaft provided on a sub-sea chassis having a capstan, a reel stand, etc., and a stopper shaft that is rotatably supported by a fixed chassis, and that engages with the stopper shaft when the sub-chassis moves to a playing state position. The stopper is engaged with the stopper that locks the sub-chassis in the playing state position, and is disengaged only during rewinding, and when an end signal is received from the manual or tape drive system, the end signal is A cassette type tape player characterized by being provided with a rewind detection plate that switches from a rewind state to a play state even when outputting. 2. When the rotation of the reel stand stops, the motor driving the capstan applies a force equivalent to the tape end signal output to the rewind detection plate to switch from the rewind state to the play state. A cassette-type tape player according to claim 1, characterized in that: 3. The rewind detection plate is provided with a spring applied between it and the head base to which the head is attached, and when switching from the rewind state to the play state, the urging force of the spring is assisted. Range 1st or 2nd
The cassette tape player described in Section 1.