JPS59101060A - Automatic ejecting mechanism in tape player - Google Patents

Abstract

PURPOSE:To attain suitable ejecting operation by forming a cam operating section to a changeover member for attaining automatic ejection so as to drive a cam member, and turning off a motor switch after an ejecting mechanism starts push of a cassette. CONSTITUTION:When the changeover member 5 is slided right, an operating section 78 is pushed by a cam part 72 and the motor switch 79 is turned on. When the changeover member 5 is restored from this state, a cam member 70 is turned in the opposite direction and the switch 79 is turned off. The operating timing of the switch 79 is obtained suitably by selecting adequately the operating range of the cam part 72 of the cam member 70 to the operating section, and preferable operation is realized by utilizing the energizing force at loading to the spring 55 provided to the ejecting mechanism after OFF-operation.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to the invention of an auto-eject mechanism for a tape player, and an object of the present invention is to provide a mechanism that can always perform automatic ejection operations smoothly in a tape player with perfect timing. .

In a tape player, operations such as ejecting the tape pack are indispensable, and it has become increasingly popular to automatically perform such operations using the rotational force of a motor. It is being done.

In other words, instead of performing the operations using the conventional general fingertip operation, each switching operation can be performed using a light operation called a feather touch, which has the advantage of greatly simplifying the operation. . By the way, in a device that is automatically ejected in this way, it is not easy to complete the ejection operation at the appropriate timing. It is necessary to turn it off at an appropriate point,
It is necessary to set the off point of such a motor switch appropriately in relation to the operating position and operating speed of the entire mechanism that operates inertia, and if this off point cannot be obtained properly, mechanical damage will occur. Impact or other force may be applied, or ejection of the cassette may not be completed.

The present invention has been devised in view of the above-mentioned circumstances, and includes a cam operating section entirely formed on a switching member for automatic ejection, and a cam operating section driven by the cam operating section. Such an eject operation by the auto-eject mechanism is carried out by completely turning off the motor switch disposed on the cam body at an appropriate point after the auto-eject mechanism has started pushing out the cassette set from the reproducing position. This is to ensure that it is always carried out accurately.

DESCRIPTION OF THE PREFERRED EMBODIMENTS The specific structural relationship of the present invention will be described with reference to the embodiment shown in the accompanying drawings.The general structural relationship of the tape breaker having an auto-eject mechanism according to the present invention is as shown in FIG. That is, capstans 51 and 51 are disposed on the machine base 50 in a well-known manner, and a gear 52 provided coaxially with one of these capstans 51 is rotated by a belt 81 suspended around a pulley 83 of a motor 80. Flywheel 82. ．． The gear 52 is provided with an intermittent gear 1 formed on a part of the entire circumferential side of the intermittent portion 1a, as shown in FIG. In the state located in the intermittent portion 1a, the interlocking relationship is cut off. Further, a cam portion 2 is integrally formed on the intermittent gear 1, and a step portion 2a and a bulge portion 2b are formed at the switching portion of the peripheral cam.
A switching member 5 is installed in the guide bin 58, 58 provided on the machine base 50 so that the switching member 5 is engaged with the horizontally elongated holes 5a, 5a and can be operated to switch from side to side. A roller-like follower 4 is configured to follow the cam portion 2 by means of a spring 15 provided between the switching member 5 and the machine.

The above-mentioned intermittent gear 1 is formed with a protrusion 1b at a position close to the above-mentioned intermittent part 1a, and the distal end 62b of the stopper member 62 faces the retaining protrusion 1b. 62 is pivotally supported by one of the guide pins 58 mentioned above, and its base end is connected to the core 63a of the plunger 63.
However, on the other hand, a spring 64 is installed between the plunger 63 and the machine base 50, and is located in the rotation range of the engaging portion 1b of the intermittent gear 1, in which the tip portion 62b rotates when the plunger 63 is de-energized. When the plunger 63 is energized, its rotation is stopped at a predetermined position, and the interlocking relationship is cut off as shown in FIG. The deadlock relationship is released. head plate 1
0 engages with the bins 67, 67, 67 arranged on the machine base 50 at the guide holes 68, 68, 68, and these guide holes 68
The head plate 10 is provided with a pinch roller (not shown) that is pressed into contact with the head 19 and the straight-moving gear phantom 51. However, springs 20 and 20i are disposed between the machine base 5o and the head plate 1° is fully energized so as to always move the head 19 back to the release position. A rectangular retaining hole 21 is provided,
A fulcrum 23 formed at the intermediate portion of the control piece 22 is inserted into the retaining hole 21 and is provided so as to be movable in the vertical direction in the drawing. 24
A slope 25 and a locking step 26 are formed on the other side, and a biasing spring 27 is attached between the fulcrum 23 and the tensile force of the biasing spring 27 is greater than that of the spring 20. The fulcrum 23 of the control piece 22 follows the upper end of the locking hole 21. The sector member 28 is attached to the machine base 50 by a pivot 29 at a position close to the motor 80, and the engaging protrusion 30 formed on the free end side is connected to the fork portion 5b of the switching member 5 as described above. The sliding action of the switching member 5 causes the switch to rotate about the pivot 29, and the Sun Tzu 31 on the other side of the free end engages with and disengages from the inclined portion 24 of the control piece 22. It's located like that. A locking protrusion 34 at the middle part of the locking piece 32 attached to the machine stand 50 at a fulcrum 33 is bent on the side of the inclined part 25 and the locking step 26 of the control piece 22, and the tip of the locking piece 32 is A retaining portion 35 is formed on the side, and a fitting portion 37 is entirely formed at the tip of a holding member 3G that is slidably provided at the back of the machine base 50, and the retaining portion 35 is fitted. A spring 38 is provided between the joining portion 35 and the machine frame to apply a biasing force to the holding member 36 in the right direction in the drawing. Further, a suction piece 39 is attached to the base end of the holding member 36, a holding plunger 40fc is attached to the suction piece 39, and a spring is provided on the holding member 36 to urge the suction piece 39 in the drawing direction of the plunger 40. 41 are provided. In addition, the above-mentioned spring 3
The tensile force of 8 is greater than the acting force of the spring 41, and therefore, as shown in FIG.
is attached, and the locking piece 34 of the locking piece 32 is closed.
The locking step 26 is connected to the inclined locking stage 26 to prevent the movement of the holding piece 22 in three directions IXjJff: The spring 38 holds the locking state when the holding piece 22 is blocked, and the granger 40
When the power is in the off state, the locking piece 32 is rotated counterclockwise in the drawing against the tensile force of the spring 41 to release the locked state. A stopper 42 is provided on the machine base 5o, and a stopper 42 is provided on the machine base 5o.
The limiting portion 43 limits the rotation range at JE, and when the control piece 22 moves upward in the drawing, the one-song oblique portion 24 moves one sector and one member 2.
Even after it comes off from the Sun Tzu 31 of No. 8, it follows the lock piece 32 and rotates counterclockwise [i], causing the Yasuko step 26 to release the lock piece 3.
The counterclockwise rotation range of the control piece 22 is restricted to prevent the control piece 22 from becoming difficult to detach from the second protrusion 34.

In this embodiment, in the configuration as described above, another connecting portion 5c is further provided on the other side of the switching member 5.
The operating link 6 is attached to the lower surface of the machine base 50 with a pivot 6a, and has a roller-like engagement provided at its operating end. The contact 6b is a stepped engagement portion 7 of the eject link 7.
The eject link γ is connected to the eject lever 9 by a connector 7b. Note that a lock arm 8 whose tip is attached to the connector 8b' is attached to the machine base with a pivot 8a, and the tip of the lock arm 8 is attached to the connector 8b'.
A lock plate 12 is connected to one end of the lock plate 12, a locking part 12ai is formed in the middle part of the lock plate 12, and a Sun Tzu 13 is attached to the other end.
Furthermore, the locking portion 12aK of the lock plate 12 as described above locks the proximal end to the head plate 1o, and the elastic locking hole 14 attached by the shaft portion 10a is The free end side of the spring 11 serving as a switching member is exposed. An eject operating portion 9a is formed on the side of the eject lever 90- as described above, and an extending portion 9b is formed on the other end, so that one half and a portion of the manual eject lever 16 provided separately are formed. a locking portion 16b formed at one end of the manual eject lever 16;
is engaged with the recessed joint 9c of the eject lever 9,
When the manual eject lever 16 is pressed, the eject lever 9 is also operated, but when the eject link 9 is activated as described later, the manual eject lever 16 is maintained in an inoperative state. There is. @The eject levers 9 and 16 are each provided with a return spring 2o, and on the other side of the manual eject lever 16, an eject operating part 16a is formed opposite to the operating part 9a, and is located in the center of the machine base 5o. A pressing operation section 16c is provided.

In the present invention, in the configuration as described above, the switching member 5 is provided with a cam operating section 5γ which is located behind the mounting portion of the spring 15, and the operating section 57 is separately mounted on the machine base 50. The cam body 70 is provided with a projecting piece 71 and a cam part 1.
2 and a notch T3 are arranged in a suitable angle range on the circumferential portion thereof, and for such a cam body 70, an operating part 78 of a motor switch 79 for turning on/off the power to the motor 80 is provided. is coming. As shown in FIGS. 6 and 8, the operation section 57 marked with "fiff" is partially bent downward, and a rising section 59 is formed entirely at its tip, and the rising section 59 is connected to the projecting piece T1 and the cam section 72. As shown in the figure, the rotation operation is performed by engaging the retaining portion 74 between the two.

In this embodiment, both 11! of the machine base 50! As shown in FIG. 2, support plates 53 and 54 are attached to I, and a swing lever 43 is pivotally attached to the lower part of these support plates 53 and 54, and a cassette guide pivot is attached above the swing lever 43. The frame 44 is attached with a pivot 44a, and an engaging portion 44b formed on the lower side of the cassette guide pivot frame 44 by being bent inward as shown in FIG. It faces the cam edge 143 formed at the end, and a locking part 143a is provided at the center of the cam edge 143.
An operating portion 143b is formed above the operating portion 143b so as to cross the front side in the loading direction of the cassette 60 loaded into the cassette kite 46 in the ejected state as shown in FIG.

The intermediate part near the base end side of the swing lever 43 and the machine base 5
0, and the spring 55 is in the shortest contracted state in the eject state shown in FIG. 9, and from this state the cassette 60 is manually or automatically pushed in. In the regenerating state shown in FIG. It is configured to be locked by being engaged with 143c.

Apart from the cassette guide pivot frame 44 and the swing lever 43 described above, one end of a pivot 45 is pivoted 45a below the pivot 44a, and the other end of the pivot 45 is attached to a cassette guide. A connecting portion 46a formed at the lower back of the guide 46 is connected by a pivot 45b, and a spring 56 is also provided between the base end side of the pivot base 45 and the machine base 50. A grandchild 46b is provided above the pivot 45b of the cassette guide 46, and the grandchild 46b is rotatably connected to the distal end of the cassette guide pivot frame 44, and the proximal end thereof is connected to the support plate 53. The retaining protrusion 48c, which is engaged with the engagement groove 48b of the eject member 48 attached to the eject member 54 with a pivot 48a, and which is cut out below the base end of the eject member 480, is the operating part of the eject lever 9 described above. 9a or the eject operation portion 16a of the manual eject lever 16. As shown in the figure, the cassette guide 46 has an opening 46ai formed above the front side of the machine base 5o, and holding parts 46d for receiving the bottom surface of the cassettes are formed on both sides of the opening 46ai, and can receive 60 cassettes. At the upper center of the guide 46 is a bullet piece 42 that presses the upper surface of the received cassette 60, as shown in FIG.
is provided, and presses the cassette (60) at its free end side to form a stable loading/receiving state.

To explain the operation of the structure described above, as is well known, a power switch is provided facing the tape cassette loading area, and when the cassette 60 is loaded, the plunger 63 is energized and the stopper member 62 is turned on. When activated, the locking of the locking protrusion 1b and the tip 62b is completely released, and the pressing force of the spring acting on the switching member 5 of the follower 4, which is connected to the stepped portion 2aK of the cam portion 2, connects the cam portion 2 and the 1fJ1 missing gear 1. , the intermittent gear 1 is engaged with the gear 52 driven by the motor, and the cam portion 2 is automatically rotated fully, so that the switching device having the follower 4 is operated through the bulge portion 2b of the cam portion 2. Part 5 is slid! By sliding the switching member 5 to the left in the figure, the sector member 28 is rotated and the Sun Tzu 31 is moved upward from the lower part of the inclined part 24 with which it had been engaged until then, so that the control piece is in the state shown in FIG. 22
becomes rotatable clockwise, and the locking member 32 and the holding member 36 are moved to the right in the figure by the tension of the spring 41 and held by the holding plunger 40 which is energized. On the other hand, the follower 4, which has once fallen to the bottom of the cam part 2 via the bulged part 2b', will reversely slide the switching member 5 to the right in the figure in the subsequent two rotations of the cam 1ils, thereby causing the sector to shift. The Sun Tzu 31 of the member 28 is moved downward to push the class 8+ part 24 of the control piece 22 downward, and the pin 67 of the head plate 10 is moved from the state where it was in contact with the lower end of the slot 68 to the position shown in FIG. Push the entire head plate 10 downward as shown until it touches the upper end of the elongated hole 68 and move the head plate 10 forward.
9, etc., to form a reproduction state as shown in FIG. 3. In addition, the locking member has the Sun Tzu 34 at the inclined part 25.
Even after the head plate 10 as described above advances to the playback position by rotating counterclockwise against the spring 38, the control piece 22 continues until the follower 4 reaches the highest point of the cam section. Continuing to be pushed downward, the fulcrum 23 moves downward within the rectangular hole 21 against the tensile force of the spring 27, and the locking member 32
4 is disengaged above the inclined portion 25, and the tensile force of the spring 38 becomes engaged with the locking step 26 as shown in the figure. Furthermore, when the follower 4 exceeds the highest point of the cam part 2 from this state, it is disengaged from the gear 2 at the intermittent part 1a of the intermittent gear 1, and the spring 64 returns to the stop position under the condition that the plunger 63 is de-energized. The tip 6 of the stopper member 62 has returned to
At step 2b, the 10 rotations of the intermittent gear are stopped at a precise position facing the gear 52, and on the other hand, the switching member 5 is urged to the left in the figure by the tensile force of the spring 16, and the follower 4 is engaged with the stage s2a. As a result, the sector member 28 is fully biased with rotational force in the clockwise direction, and the control piece 22 whose pressing force from the Sun Tzu 31 is released is a groove in which the inclined portion 26 abuts the Sun Tzu 34 of the locking member 32. The spring 27 moves upward in the drawing until it reaches the state shown in FIG. 1, where it is held by the holding force of the holding plunger 40 and the tension of the spring 38.

As described above, when the plunger 63 is further actuated in the Nyu state shown in FIG. Through operation link 6 zygote 6bk heaven seal C
The eject link 7 is pushed forward under the condition that the other side of the eject link 7 is held down by the pedestal 8b of the lock arm 8, and the zygote 6b is placed in the position shown in the virtual storage in FIG. Move the eject lever 9 to the 1st and 3rd positions by reaching
The tape bag is moved forward in the direction of the arrow shown in the figure, and the auto-eject operation for pulling out the tape bag is performed by the operation part 9a of the eject lever 9 as described later. In this case, the manual eject lever 16 is not operated. .

Next, to explain the operational relationship of the switching mechanism in the configuration as described above, the auto-eject operation as described above is performed when the heladium plate (10) is advanced so as to form a regeneration state. It is clear from the operational relationship of this type of table player that the head plate 1 is
The entire lock plate 12 is rotated clockwise by the switching spring 11 provided in the lock hole 14, and the lock plate 12 is rotated clockwise to lock the Sun Tzu 13 in the bent lock portion of the lock hole 14. By locking, the connector 8b provided on the lock arm 8 that interlocks with the lock plate 12 is fixed in the position shown in FIGS. Driving the rick 7 in the direction of the arrow in FIG. 2 is completely circular. On the other hand, if the head plate 10 moves backward (as shown in Figure 3, the head plate 10 moves toward the arrow H).
The spring 11 provided on the head plate 10
stops pressing the locking portion 12a of the lock plate 12, and the spring 15 provided on the pivot 8a of the lock arm 8 rotates the lock arm 8 in the direction of arrow G, and the lock plate 12 is rotated in the direction of arrow J. move. Therefore, the engagement 13 is released from the lock part of the lock hole 14, and the operating link 6 rotates clockwise as shown in FIG. As a result, the eject link 7 does not perform an eject operation, and the eject lever 9 connected thereto is also not operated, so that no eject operation is performed.

When using the configuration shown in FIGS. 9 and 10 as described above, the swing lever 43 described above is
The ejecting force is energized to the spring 55 provided at the front. That is, the cassette 60 is ejected from the ejected state as shown in FIG.
It is clear that when the passive part 143b of the swing lever 43 is pushed by pushing 1 manually or automatically, the swing lever 43 rotates around the pivot 43a, and the spring 55 extends and stores energy. , the engaging part 44b of the cassette guide pivot frame 44 comes off the retaining part 143a,
Next, the cassette guide frame 44 is slid along the arcuate cam edge 143, but during the sliding process along the cam edge 143, the cassette guide support frame 44 is held approximately in the state shown in FIG. It is fixed and does not rotate.

However, if the cassette 60 is pushed in sufficiently and the rays 55 are effectively loaded with force, and the retaining portion 44b reaches the g portion of the cam edge 143, the fourth side of the pivot base 45 will be moved to the fourth side by the action of the spring 560. 9
In the figure, the cassette guide 46 connected by the pivot 45b is rotated counterclockwise, and the front pivot 44 is rotated counterclockwise to lock the retaining portion 44b.
The state shown in FIG. 10 in which it is locked at C is formed.

When the switching member 5 is slid from the state shown in FIG. 1 to the right as shown in FIG.
8'ff: It is clear that the push motor switch 79 is turned on. Further, when the switching member 5 moves backward as shown in FIG. 7 from this state, the cam body 70 is rotated in the opposite direction and the switch 79 is turned off. Cam body T
By appropriately selecting the operating range of the cam portion T2 with respect to the operating portion 78 at O, the actuation timing of the switch 79 can be accurately obtained, and after the switch 79 is turned off as shown in FIG. In this manner, a preferable ejection operation can be achieved by appropriately utilizing the force applied to the spring 55 provided in the ejection mechanism during charging.

According to the present invention as described above, in this German mechanism in which the ejection operation is automatically performed by motor drive, the switching part 5 is operated by the cam part 2 integrally formed with the missing gear 1i=lJ. This allows the motor switch to be turned on and off appropriately.In particular, since all of the above switch operations are performed by the cam body 70 rotated by the switching member 5, accurate timing can be obtained. This invention is industrially very effective because the ejecting operation is performed by the member 5, and furthermore, the switching relationship of the ejecting operation can be completely realized in relation to the operating state of the head plate.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a plan view showing the overall head plate according to the present invention in an advanced state, and FIG. 2 is a plan view showing the state in which the operating link is further rotated. FIG. 3 is a partial plan view of the head plate in the retracted state, FIG. 4 is a partial plan view of the head plate in the retracted state and the operating link is rotated, and FIG. 5 is a partial plan view of the head plate in the retracted state. A plan view of the play state with the motor switch fully turned on through the cam body, FIG. 6 is a sectional view thereof, FIG. 7 is a plan view similar to FIG. 5 showing the eject state, and FIG. 8 is a cross section thereof. Figures 9 and 9 are side views of the eject operation mechanism in the fully ejected state, and Figure 10 is a side view showing the eject operation mechanism in its playing state. However, in these drawings, 1 is an intermittent gear, 1aid
The intermittent part, 2 is the cam part, 4 is the follower, 5 is the switching part, 6 is the operation link, I is the eject link, 8 is the lock arm, 9 is the eject lever, 10 is the head plate, 1
1 is the switching spring, 12 is the lock grade, 13 is Sun Tzu, 1
4 is a lock hole, 15 is a spring, 50 is a machine base, 57 is a cam operation part, 59 is a rising part thereof, 70 is a cam body, 71 is a projecting piece part, 72 is a cam part, 73 is a notch part, 74 is a Engagement part, γ
8 is the operation unit, 79U motor switch, 80 is the motor, 8
1 is a belt, 82id flywheel, and 83 is a pulley. Patent applicant Toru J Talalion Co., Ltd. Old↑. ? Ya 4 Figure 7 Me\, 'j':: 7 T\2\1') → 51 River

Claims (1)

[Claims] An intermittent gear having a cam portion is disposed in a drive gear driven by a motor, an operating link is actuated via a switching member having a follower joined to the cam portion, and the eject lever is operated by the operating link. In the device in which the ejecting operation is automatically performed by driving the motor, a cam operating portion is formed on the switching member, the cam operating portion is made to face a cam body separately provided on the machine base, and the cam operating portion is provided in the switching member. An auto-eject mechanism for a Teso player, characterized in that an operating section of a motor switch for turning on and off the power to the above-mentioned motor is exposed to a cam portion formed on the body.