JPH02148456A - Cassette eject device for tape player - Google Patents

Abstract

PURPOSE:To simplify a mechanism by abutting one edge of a pushing-out arm, which is supported on a moving member, to a fixing member while the moving member is moved toward a holder by an operating means, turning the pushing- out arm and sending a tape cassette out by the other edge of the pushing-out arm. CONSTITUTION:A moving member 31 is moved by an operating means 37 and moved toward a holder 24 which holds an inserted tape cassette A. A pushing- out arm 34 is supported on the moving member 31, can be turned and executes operation to push the back surface of the tape cassette A. A fixing member 1e is abutted to the pushing-out arm 34 and turns the pushing-out arm 34 while the moving member 31 is moved. Accordingly, for the stroke of eject to the tape cassette A, the stroke by the turn of the pushing-out arm 34 is added to the moving quantity of the moving member 31 and the stroke dimension of the pushing-out arm 34 can be reduced. Then, force to execute the eject goes to be large and the tape cassette can be ejected without fail. Thus, the mechanism can be simplified.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention is directed to digital or analog audio
The present invention relates to a cassette ejecting device for feeding a tape cassette inserted into a tape cassette player such as a video player and held in a holder to the insertion port.

[Conventional technology]

A conventional cassette ejecting device for this type of tape player is shown in FIGS. 25 and 26.

In the same figure, an extrusion arm 61 and an operating lever 62 are supported on a shaft 60, and a roller 63 for extruding a tape cassette A is attached to the tip of the extrusion arm 61, and a space between the extrusion arm 61 and the operation lever 62 is attached to the tip of the extrusion arm 61. A tension spring 67 is mounted on the holder.

Also, the cam hole 6 of the extrusion arm 65 which is supported by the shaft 64
A pin 61a of the push-out arm 61 is inserted into 5a, and when the push-out arm 61 rotates around the shaft 60, the push-out arm 65 also rotates around the shaft 64 in conjunction.

Now, when the bottle 62a of the operating lever 62 is rotated in the direction of the arrow in FIG.
is rotated via the tension spring 67, and the extrusion arm 65 is also rotated in conjunction with this as shown in FIG.
The rollers 66 and 63 push the tape cassette A and eject it.

[Problem to be solved by the invention]

In the conventional cassette ejecting device, the stroke required to eject tape cassette A is
is covered by the operating amount 2.

Therefore, when the stroke of the ejector is long relative to the actuation amount 2, the enlargement ratio becomes large, the ejecting force becomes weak, and there is a possibility that the tape cassette cannot be sent out.

[Purpose of the invention]

The present invention is intended to solve the above-mentioned problems of conventional tape player cassette ejecting devices, and the stroke required to eject a tape cassette is covered by two movements: the movement of a moving member and the rotation of an extrusion arm. , the ejecting force is increased to ensure ejection of the tape cassette.

The purpose of the present invention is to simplify the mechanism by rotating the push-out arm only by moving the moving member.

[Summary of the invention]

The present invention relates to means for a cassette ejecting device of a tape player to achieve the above-mentioned object, in which the ejector arm is pivoted on the moving member while the moving member is moved towards the holder by actuating means. One end touches the fixed member, the push-out arm is rotated, and the other end feeds out the tape cassette.

[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 1 by a shaft 7, as shown in FIGS. That side 6
a and 6b contact the drive bin 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 a 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 gear 14 that meshes with this gear 11 and is rotatably supported on the shaft 13 of the chassis 10 has a pin 14a erected thereon, and an arm 15 that is rotatably supported on the shaft 13 has an arc shape. The bottle 14a is inserted into the 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. Similar to the arm 15, it is biased in one direction with respect to the bin a.

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

The left and right bins 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 bottle 24a on the arm 15 side
, a cam arm 26 is pivotally supported on the chassis 1 by a shaft 25.
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 1b 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.The bin 27a of this door 27 is pushed down to rotate the door 27 against the bias of a spring (not shown). , an opener 28 that opens this is pivotally supported by a shaft 29 of the chassis 1.

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

As shown in FIGS. 9 to 12, slide holes 31a are inserted into the two bins 1d of the horizontal portion 1c of the chassis 1, and the slider 31, which is slidable facing the holder 24, has bins 31b and 31c. is erected, and a push-out arm 34.35 is pivotally supported, and a roller 32.33 for pushing the tape force set 1-A is attached to the tip.

A cam hole 35a of the extrusion arm 35 is slidably inserted into the bottle 34a of the extrusion arm 34,
Further, a bottle 34b is provided upright on the extrusion arm 34.

This bottle 34b hits the stopper 1e of the chassis 1 while the slider 31 is moving toward the holder 24,
The extrusion arm 34 is rotated, and when the extrusion arm 34 is rotated, the extrusion arm 35 is also rotated by the sliding of the bin 34a and the cam hole 35a.

The torsion spring 36, which is wound around the bottle 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 IC of the chassis 1, 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 1, 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 bins 39c are provided upright on the slide plate 39, and two slide holes 40b of the slide plate 40 are slidably inserted into the bins 39c, and an engaging pin 39d is provided on the slide plate 39. has been erected.

A rotating engagement plate 41 provided with a retaining step portion 41a that engages with the bin 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 41b that contacts the retaining pin 39d 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 1, and is wound around the shaft 44. A torsion spring 46 is installed between the rotating arm 45 and the sub-chassis 43, and urges 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.

Due to this bias, the pin 48a of the locking piece 48 comes into contact with the locking portion 24c of the holder 24, and its rotation is prevented, but when the holder 24 moves, the locking piece 48 is moved due to the bias. Rotate.

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 the tape cassette A has been ejected and the next tape cassette A is ready to be inserted.

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 11a to rotate the gear 11, and the arm I5 pushes the bin 24a and moves the holder 24 to the tape cassette A closest to the door 27. Place it in the insertion slot.

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 are extended against the bias of the tension spring 12 to prevent the bottle 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 inserted into the protrusion bin 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 bottle 5a reaches the position of the recess 6c of the cam lever 6, the side 6b is pushed by the bottle 5a, the gear 11 rotates, the arm 15 is rotated, and the bottle 24a is moved into the guide groove la.
, the holder 24 starts moving, and the tape force set I-A inserted therein is loaded.

Therefore, since the holder 24 also moves upward from the state shown in FIG. 19, the locking of the bottle 48a on the locking side 48 by the locking portion 24c is released, and the locking piece 48 is moved upward from the tension spring. 49, and its retaining portion 48b comes into contact with the arcuate retaining 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 manner, the shaft 7, the bins 6d and 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 bin lla, so that the tape cassette is You can fully exert the necessary force when setting.

The gear 11 is rotated by an angle greater than the angle required for this set, but the appropriate stroke is achieved by moving the pin 14a away from one end of the arcuate hole 15a and increasing the biasing force of the torsion spring 16. ing.

The increase in the load on the bottle 5a when the bottle 5a contacts the side 6b does not increase rapidly as the bottle 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 within the cam hole 26a of the cam arm 27, and when the cam arm 26 is in a horizontal state as shown in FIG. 6, 1. The opener 28 is rotated by the connecting arm 30, and its tip pushes the bottle 27a to open the door 27 once.

However, when the holder 24 is vertically lowered, the cam arm 26 is rotated by the bin 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 bottle 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 arm 15 causes the bottle 24a to move up the vertical portion of the guide groove 1a, so that the holder 24 moves up.

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

Then, by further rotation of the cam lever 6, the bin 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 step portion 41a moves the rotary engagement plate 41 and 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 the pin 34a and the 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 out the tape cassette A, the slide hole 39a of the slide plate 39 contacts the guide pin 38 as shown in FIG. 14, and the engagement pin 39d rotates. It comes into contact with the protrusion 41b of the engagement plate 41.

However, since the pin 5a continues to move, the retaining step 4
1a continues to move the slide plate 40 together with the rotation retaining plyplate 41 so that its slide hole 40b slides the pin 39c.

On the other hand, since the engagement pin 39d cannot move as described above, the protrusion 41b is pushed by the engagement 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 rotary engagement plate 41 also returns as shown in the same 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〕

In the present invention, like a ridge, one end of the extrusion arm that is pivotally supported by the movable member is rotated by the fixed member while the extrusion arm is moving toward the slider holder, which is a movable member, and the other end of the extrusion arm is rotated by the holder. The tape cassette held in the tape cassette is pushed out into the tape insertion slot.

Therefore, the ejection stroke of the tape cassette is
The stroke due to the rotation of the push-out arm is added to the amount of movement of the moving member, and the stroke dimension required of the push-out arm can be made smaller than in the past.

Therefore, the force with which the extrusion arm ejects the tape cassette becomes large, and the ejection of the tape cassette does not become uncertain.

Since the operation for this purpose is performed only by linearly moving the moving member in one direction, the mechanism can be simplified, and there are effects such as reducing the risk of failure and reducing costs.

[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 FIGS. 25 and 26 show the operation of a conventional cassette ejecting device. FIG. 1c...Horizontal part, 1e...Stopper, 31...Slider, 31a...Slide hole, 31b, 31c...
- Bin, 32. 33... Roller, 34, 35... Push-out arm, 34a, 34b... Pin, 35... Cam hole, 37... Rotating arm.

Claims (1)

[Claims] a moving member that is operated by an actuating means and moves toward a holder holding an inserted tape cassette; a push-out arm that is rotatably supported on the moving member and that pushes the rear surface of the tape cassette; A cassette ejecting device for a tape player, comprising: a fixed member that contacts the extrusion arm while the movable member is moving and rotates the extrusion arm.