JPH02148454A - Cassette loading device for tape player - Google Patents

Abstract

PURPOSE:To prevent malfunction or a finger from being caught in by operating a switch by a turning arm, which is operated by the deep edge of a tape cassette to be inserted to a holder, rotating a motor and executing loading operation by the holder. CONSTITUTION:A holder 24 holds a tape cassette A, which is inserted from a cassette inserting port, and this tape cassette is carried to a position, in which the tape cassette is set to a tape driving mechanism. A turning arm 45 is moved by the deep edge of the tape cassette A, which is inserted to the holder 24, and a motor 2 is rotated by the switch which is operated by the turn of a rotary arm 45. Then, loading means 5, 6, 11 and 15 operate the holder 24 by the motor 2. Accordingly, until the loading means 5, 6, 11 and 15 are operated, the holder 24 is not operated and in order to turn the arm 45, the finger lacks a length. Then, it is difficult to rotate the arm up to a necessary angle by a slender object such as a pencil, etc. Thus, the malfunction due to the finger, etc., an accident to catch the finger, etc., in and a fault can be prevented in advance.

Description

[Detailed Description of the Invention] [Field of Industrial Application] Zero Hatsuho uses a holder to hold a tape cassette inserted from the cassette insertion slot of a tape player, and moves the holder with the rotation of a motor to insert the tape cassette into the tape. The present invention relates to a cassette loading device for a tape player that is set in a drive mechanism.

[Conventional technology]

A conventional cassette loading device of this type is shown in FIG.

In the figure, A is a tape cassette, which is inserted into the holder 60 from the cassette insertion slot of the player.

In this holder 60, a pin 60a is inserted into a long hole 62a of an arm 62 coaxial with the loading gear 61. When the arm 62 rotates due to the rotation of the loading gear 61, the bottle 60a is moved by the long hole 62a, and the holder 60 moves along the guide means and sets the held tape force set I-A on the tape drive mechanism.

A preload spring 64 is mounted on the gear 63 that meshes with the loading gear 61 and biases the loading gear 61 in the direction of operation.

Then, the tape cassette A is inserted into the holder 60, the holder 60 is pushed in the direction of the arrow A, and the loading gear 6
1 is rotated so as to compress the preload spring 64, the cam portion 61b of the loading gear 61 pushes the switch 65, turning it on.

When the motor is turned on, the gear 63 is driven, the loading gear 61 is rotated, the holder 60 is moved by the arm 62, and the above-described loading is performed.

[Problem to be solved by the invention]

In a conventional cassette loading device, when the holder is pushed and moved, a switch is turned ON and a motor is rotated to perform a loading operation.

Therefore, if a child or the like inserts a finger into the cassette insertion slot and pushes the holder to move it, the motor will rotate and perform a loading operation.

This has drawbacks such as malfunctions and fingers getting caught.

In addition, in order to prevent the holder from malfunctioning due to such pressure on the holder with a finger, the preload spring 64 is strengthened to prevent the holder from easily moving. It becomes necessary to push the tape cassette in, which worsens the feeling of inserting the tape cassette.

[Purpose of the invention]

The present invention solves the above-mentioned problems of the conventional cassette loading device, prevents the cassette loading device from being easily operated by a finger inserted through the cassette insertion slot, prevents fingers from being caught due to movement of the holder, and prevents the cassette loading device from being caught in the cassette. To provide a cassette loading device for a tape player that does not deteriorate the feeling of insertion.

[Summary of the invention]

The present invention relates to means for a tape player cassette loading device for achieving the above-mentioned object. The rotation causes the holder to perform a loading operation.

[Embodiments of the invention]

Next, an example of implementing the present invention as a digital audio chip cassette player will be described with reference to FIGS. 1 to 24.

In Fig. 1, reference numeral 1 denotes a chassis, and the rotation of a motor 2 attached to the chassis is transmitted to a worm 3.A gear 4, which transmits this rotation via an intermediate gear, drives a rack 5 with a drive bin 5a upright in a straight line. Exercise.

As shown in FIGS. 2 to 4, a cam lever 6 having two intersecting linear sides 6a and 6b and a depression 6c at the intersection thereof is rotatably supported on the chassis l by a shaft 7, as shown in FIGS. That side 6
a and 6b contact the drive pin 5a and rotate the cam lever 6 by their linear motion.

A connecting lever 8 having a guide hole 8a is pivotally attached to the pin 6d of the cam lever 6, and the connecting lever 9, which has a pin 9a slidably inserted into the guide hole 8a, is attached to the shaft 10 of the chassis l. It is pivotally connected to the pin lla of the gear 11 which is rotatably supported.

A tension spring 12 is installed between the connecting levers 8 and 9, and when the cam lever 6 rotates, the connecting levers 8 and 9
pushes and pulls the bottle lla to rotate the gear 11.

A pin 14a is erected on a gear 14 that meshes with this gear 11 and is rotatably supported on a shaft 13 of the chassis l, and an arm 15 that is rotatably supported on the shaft 13 is provided with a pin 14a. The bottle 14a is inserted into the arcuate hole 15a.

A torsion spring 16 wound around the shaft 13 is installed between the arm 15 and the gear 14, and biases the arm 15 in one direction with respect to the gear 14.

The gear 14 meshes with a gear 18 provided on a shaft 17 that passes through both left and right sides of the chassis 1, and a gear 19 provided on the opposite side of the shaft 17 meshes with a gear 2 of a shaft 20 provided on the opposite side of the shaft 13.
1, so that the gear 14.21 rotates in conjunction with the gear 14.21.

An arm 22 is also pivotally supported on the shaft 20 in the same way as the shaft 13, and by a torsion spring 23 mounted between the arm 22 and the gear 21, the arcuate hole 22a of the arm 22 is connected to the gear 21 into which it is inserted. Similarly to the arm 15, it is biased in one direction with respect to the pin a.

The tape cassette A is inserted, and pins 24a provided upright on both left and right sides of the holder 24, which moves the inserted tape cassette A while always keeping it in a horizontal state, are slidably inserted into the L-shaped guide groove 1a of the chassis l. and this guide groove 1
The holder 24 is configured to move along the line a.

The left and right pins 24a of the holder 24 are inserted into the guide grooves 15b and 22b of the arms 15 and 22, respectively, and the holder 24 is moved by the rotation of the arms 15 and 22.

Also, as shown in FIGS. 5 to 8, the pin 24a on the arm 15 side
, a cam arm 26 is pivotally supported by a shaft 25 on the chassis l.
The cam hole 26a of the cam arm 26 is inserted, and the pin 26b of the cam arm 26 is inserted into the guide hole ib of the chassis 1 and guided.

Reference numeral 27 denotes a door that normally covers the insertion slot for the tape cassette A of the tape player.A pin 27a of this door 27 is pressed down to rotate the door 27 against the bias of a spring (not shown). , an opener 28 for opening this is pivotally supported on a shaft 29 of the chassis l.

The pin 28a attached to the opener 28 and the pin 26c of the cam arm 26 are connected by a connecting arm 30, and the pin 24a slides inside the cam hole 26a to connect the cam arm 26.
When the door 6 is rotated, the opener 28 is also rotated to open the door 27.

As shown in FIGS. 9 to 12, the slide hole 31a is inserted into the two pins ld of the horizontal portion 1c of the chassis 1, and the slider 31 that can slide facing the holder 24 has pins 31b and 31c. is erected, and a push-out arm 34.35 having a roller 32.33 for pushing the tape cassette A attached to its tip is pivotally supported.

A cam hole 35a of the push-out arm 35 is slidably inserted into the pin 34a of the push-out arm 34,
Further, a pin 34b is provided upright on the push-out arm 34.

This pin 34b hits the stopper 1e of the chassis l while the slider 31 is moving toward the holder 24,
It rotates the extrusion arm 34, and when the extrusion arm 34 rotates, the extrusion arm 35 also rotates due to the slide of the pin 34a1 and the cam hole 35a.

The torsion spring 36 wound around the pin 31c is installed between the push-out arm 35 and the slider 31, and biases the push-out arm 34, 35 rotated as described above in the direction to return.

Further, the pin 37b at the tip of the rotating arm 37, which is pivotally supported in the hole 27a by the horizontal portion 1c of the chassis l, is inserted into the hole 31d of the slider 31, and the slider 31 is moved by the rotation of the rotating arm 37. .

As shown in FIGS. 9 and 13 to 16, two guide pins 38 are provided upright on the chassis l, and two slide plates 39 and 40 are stacked on the guide pins 38. ,
These slide holes 39a, 40a are slidably inserted.

A pin 37c of the rotating arm 37 is inserted into a holding portion 39b bent on the slide plate 39, and the rotating arm 37 is rotated by the slide of the slide plate 39.

Further, two pins 39c are provided upright on the slide plate 39, and two slide holes 40b of the slide plate 40 are slidably inserted into the pins 39c, and an engaging pin 39d is provided on the slide plate 39. has been erected.

A rotary engagement plate 41 provided with a retaining step portion 41a that engages with the pin 5a of the rack 5 is supported on the slide plate 40 by a shaft 40c. A tension spring 42 is mounted to pull the slide plate 40 to one side via a spring 40c and to rotate the rotation engagement plate 41.

The rotary engagement plate 41 is formed with a protrusion 41 b that contacts the engagement pin 3911 and rotates the rotary engagement plate 41 against the bias of the tension spring 42 .

As shown in FIGS. 17 to 21, a rotating arm 45 is rotatably supported on a shaft 44 erected on a sub-chassis 43 fixed to the chassis l, and is wound around the shaft 44. A torsion spring 46 is installed between the rotating arm 45 and the sub-chassis 43, and biases the rotating arm 45 in one direction.

Then, due to this urging, the engaging portion 45 of the rotating arm 45
a contacts the protrusion 43a of the sub-chassis 43 to keep the rotating arm 45 in a fixed position. It is in a position where it is pressed.

Further, a cam portion 45c is formed on the rotating arm 45 and comes into contact with the pressing pin 24b provided on the holder 24.

Furthermore, a locking piece 48 is attached to the shaft 47 provided on the sub-chassis 43.
is rotatably supported, and the locking piece 48 and the sub-chassis 43
A tension spring 49 is installed between them and urges the locking piece 48 to rotate in one direction.

The pin 48a of the locking piece 48 comes into contact with the locking part 24c of the holder 24 due to the 20 bias, and its rotation is prevented. However, when the holder 24 moves, the locking piece 48 rotates.

Due to this rotation, the locking portion 48b of the locking piece 48 comes into contact with the arc-shaped locking portion 45d of the rotating arm 45, but due to further rotation of the rotating arm 45, the locking portion 48b finally comes into contact with the arc-shaped locking portion 45d. 4
5d to prevent the rotating arm 45 from rotating under the bias of the torsion spring 46.

When the bin 5a of the rack 5 moves to the recess 6c of the cam lever 6, an elastic curved piece 50 comes into contact with the top surface of the bin 5a as shown in FIG. It is attached to chassis 1.

Next, the operation of this embodiment will be explained starting from the time when tape cassette A has been ejected and it is time to insert it into the next tape cassette.

At this time, the rack 5 is on the right side in FIG. 2, the side 6a of the cam lever 6 is rotated to the right, and as will be described later, the slider 31 is located on the upper side as shown in FIG.
The rollers 32 and 33 are also in the state shown in the figure.

Then, due to the rotation of the cam lever 6, the connecting levers 8 and 9 pull the bin lla to rotate the gear 11, and the arm 15 moves the bin 24a to move the holder 24 to the door 2.
7. Place it in the insertion slot of tape cassette A closest to tape cassette A.

At this time, the bottle 24a moves within the cam hole 26a of the cam arm 26 to bring the cam arm 26 into the state shown in FIG.
The tip of the opener 28 rises above the bin 27a of the door 27, and the door 27 is in a closed state due to its bias.

In this state, the connecting levers 8 and 9 can extend against the bias of the tension spring 12 in order to prevent the bin 5a from clinching with the side 6a of the cam lever 6 pushed up.

In this state, when the tape cassette A is inserted into the holder 24 by pushing down the door 27, the tape cassette is attached to the projecting pin 45b of the rotating arm 45, which was rotating as shown in FIG. 17 just before the end of the insertion. The tip end of A is brought into contact with it, and it is rotated against the bias of the spring 46, as shown in FIG.

Immediately before this rotating arm 45 is rotated to the position shown in FIG. 19, a switch (not shown) is activated by the rotating arm 45.
N, the motor 2 rotates and the rack 5 is moved to the left in FIG.

When the bin 5a reaches the position of the ff1 portion 6c of the cam lever 6, the side 6b is pushed by the bin 5a, the gear 11 rotates, the arm 15 is rotated, and the bin 24a is moved along the guide groove 1a. The holder 24 starts moving, and the tape cassette A inserted into it is loaded.

Therefore, since the holder 24 also moves upward from the state shown in FIG. 19, the locking of the bottle 48a of the locking side 48 by the locking portion 24C is released, and the locking piece 48 is released from the tension spring. 49, and its locking portion 48b comes into contact with the arcuate locking portion 45d of the rotating arm 45.

Then, as the holder 24 continues to move for loading, the pressing pin 24b hits the cam portion 45c as shown in FIG. 20, and the rotating arm 45 further rotates.

When the rotation angle of the rotation arm 45 exceeds the state shown in FIG. prevent.

Thereafter, the holder 24 is moved to the position shown in FIG.
A reaches the end of the horizontal part of the guide groove 1a, and then descends guided by the vertical part of the guide groove 1a.The tape cassette A inserted therein is set in the tape drive mechanism, and during playback, the tape is moved to the head drum 51. It is something that is played back by being wrapped around it.

When setting the tape cassette A in this way, the shaft 7 and the pin 6dS lla are in a nearly straight line as shown in Fig. 4, and the driving force of the bin 6d is strongest and acts on the pin lla, so the tape cassette A is set. Able to exert sufficient force at times.

The gear 11 is rotated by an angle greater than that necessary for this set, but the extra stroke is compensated for by the pin 14a separating from one end of the arcuate hole 15a and increasing the biasing force of the torsion spring 16. There is.

The increase in the load on the bottle 5a when the bottle 5a contacts the side 6b does not increase rapidly because the pin 5a separates from the elastic curved piece 50, and therefore no abnormal noise or vibration is generated. .

By horizontally moving the holder 24 as described above, the bin 24
a moves in the cam hole 26a of the cam arm 27, and when the cam arm 26 becomes horizontal as shown in FIG. open.

However, when the holder 24 is vertically lowered, the cam arm 26 is rotated by the pin 24a as shown in FIG. Door 27 is in a closed state.

When an eject command is given from the outside in such a set state, the motor 2 rotates in the opposite direction, and the rack 5 moves toward the right in FIG. 2.

Then, when the pin 5a reaches the recess 6c of the cam lever 6,
The cam lever 6 is thereby rotated in the direction shown in FIG.

Therefore, the gear 11 is rotated in the opposite direction by the cam lever 6, and the pin 24a is moved up by the arm 15 in the vertical portion of the guide groove 1a, so that the holder 24 is moved up.

This rise causes the cam arm 26 to reach the position shown in FIG. 6 again, and the door 27 opens.

As the cam lever 6 further rotates, the pin 24
moves in the horizontal part of the guide groove 1a, and the holder 24 moves in the horizontal part of the guide groove 1a.
Move horizontally so that it approaches 7.

On the other hand, the rotation engagement plate 41 is in the state shown in FIG. 13 due to the bias of the tension spring 42, and when the holder 24 starts to move horizontally as described above, its engagement step 41a comes into contact with the bottle 5a. It becomes like this.

Due to this engagement, the engagement stepped portion 41a moves the rotation retaining plywood plate 41 and the slide plates 39, 40 to the right in FIG. 13 against the tension spring 42.

This movement of the slide plate 39 rotates the rotation arm 37 and moves the slider 31 in a direction closer to the holder 24.

As a result of this movement, the bottle 34a of the push-out arm 34 hits the stopper 1e of the chassis 1, and the push-out arm 34 rotates as the bottle 31b moves forward.

This rotation of the extrusion arm 34 is transmitted to the extrusion arm 35 through its pin 34a and cam hole 35a, and since the extrusion arm 35 also rotates at the same angle as the extrusion arm 34, the roller 3
2 and 33 move the tape cassette A from the holder 24 to the door 27
push towards.

At this time, since the door 27 is open as described above, the tape cassette A is pushed out without hitting the door 27.
Thereafter, as the holder 24 moves, the door 27 attempts to close as shown in FIG. 5, but the door 27 hits the pushed-out tape cassette A and does not close.

However, when the tape cassette A is removed from the holder 24, the door 27 closes as shown in FIG. 5 due to its bias.

In this way, when the rollers 32 and 33 finish pushing the tape into the cassette, the slide hole 39a of the slide plate 39 contacts the guide pin 38 as shown in FIG. 14, and the engaging pin 39d rotates. It comes into contact with the protrusion 41b of the engagement plate 41.

However, since the pin 5a still continues to move, the engaging step portion 4
1a continues to move the slide plate 40 together with the rotary engagement plate 41 so that its slide hole 40b slides the pin 39c.

On the other hand, since the retaining pin 39d cannot be moved as described above, the protrusion 41b is pushed by the engaging pin 39d against the tension spring 42 and rotates as shown in FIG. The pin 5a is disengaged.

Then, the slide plates 39 and 40 are pulled by the tension spring 42 and return as shown in FIG. 13, and the rotation retaining plywood plate 41 also returns as shown in the figure.

This return of the slide plate 39 is transmitted to the slider 31 by the rotating arm 37, and returns it to the position shown in FIG.
4.35 is also returned as shown in the figure, so that there is no problem in inserting the tape cassette into the holder 24.

On the other hand, the aforementioned movement of the holder 24 results in the locking portion 24c pushing the pin 48a of the locking piece 48 as shown in FIG. 19, and the locking piece 48 rotates against the bias of the tension spring 49. Therefore, the locking portion 48b comes off from the arcuate retaining portion 45d.

Therefore, the rotating arm 45 is rotated to the position shown in FIG. 17 by the bias of the torsion spring 46, and the ejecting operation is completed.

In the above embodiment, the door 27 is pivoted on the lower side, but the pin 27a is the vertical center of the door 27, and the shape of the connecting arm 29, the pivoting position of the opener 28, and the connecting arm By changing the connection position with 29 as shown in FIG. 22, even if the upper side of the door 27 is pivoted, the door 27 can be opened and closed in the same way as in the previous embodiment.

That is, FIG. 22 shows the closed state of the door 27 when ejecting is completed, and FIG. 24 shows the closed state of the door 27 when the tape cassette A is set.
FIG. 3 shows a state in which the door 27 is opened halfway.

〔Effect of the invention〕

As in the case of the present invention, the motor that drives the loading means starts rotating when the rear end of the tape cassette inserted into the holder pushes the arm to rotate it and turns on the switch.

The holder does not move until the loading means operates, and fingers are not long enough to rotate the arm, making it difficult to rotate the arm to the required angle with a long and thin object such as a pencil. .

Therefore, malfunctions of the loading means due to fingers, pencils, etc. are prevented, and movement of the holder is prevented by the loading means, so malfunctions due to fingers, pencils, etc. are prevented, and accidents and failures due to pinching of these can be prevented.

Furthermore, the tape cassette is resistant to erroneous insertion in a direction other than the normal direction, and since no preload spring is used, the feeling of inserting the tape cassette is improved.

Incidentally, if the rotating arm of the present invention is provided not only on one side as in the embodiment, but on both sides, and the switches on both sides are turned on to rotate the motor, malfunctions can be more effectively prevented. It is something.

[Brief explanation of the drawing]

Figures 1 to 24 show an embodiment of the present invention, with Figure 1 being an overall plan view, Figures 2 and 4 being side views showing the operation of the loading mechanism, and Figure 3 being a side view of the loading mechanism. A side view of the opposite side, Figures 5 to 7 are side views showing the operation of the door opening/closing mechanism, Figure 8 is a side view of the door opening/closing mechanism and the elastic curved piece, and Figure 9 is an exploded perspective view of the cassette ejection mechanism. , FIGS. 10 to 12 are plan views showing its operation, FIGS. 13 to 16 are side views showing its operation, and FIGS. 17 and 19 to 21 show the operation of the loading start mechanism. 18 is a side view of FIG. 17, FIGS. 22 to 24 are side views of other embodiments of the door opening/closing mechanism, and FIG. 25 is a side view of a conventional cassette loading device. A... Tape cassette, 1a... Guide groove, 2...
・Motor, 6...Cam lever 14...Gear, 15
...Arm, 24...Holder, 24a...Bin,
24b... Press bottle, 45... Rotating arm, 45b
... Projection pin, 45d... Arc-shaped locking portion, 46... Torsion spring, 48... Locking piece, 48a... Bin,
48b...Locking portion, 49...Tension spring. 3 A Figure 10 Figure 17 Figure 19

Claims (1)

[Claims] A holder that holds a tape cassette inserted from a cassette insertion slot and transports it to a position where it is set in a tape drive mechanism, a rotating arm that is moved at the rear end of the tape cassette inserted into the holder, and a rotating arm that A cassette loading device for a tape player, comprising: a motor rotated by a switch operated by rotation; and a loading means for operating the holder by the motor.