JPS5971151A - Rapid traverse/rewinding mechanism - Google Patents

Abstract

PURPOSE:To attain surely the switching operation, etc. with a simple constitution, by utilizing a motor torque for the switching operation in rapid traverse/ rewinding. CONSTITUTION:A taper pressing piece 50 at this side provided to a switching plate 47 presses a stopper 16 according to the movement of the switching plate 47 and the locking of an interleaved gear 13 is released. Then, a cam follower 22 locked around the center of a restoring section of a driving cam 20 is shifted toward the minimum diameter section of the cam 20 by a force of a spring 31 driving a power plate 21. With the cam follower 22 shifted, the cam 20 and the gear 13 provided incorporatedly are turned slightly. A notch 14 is released from the front of a reverse driving gear 12 with the slight turning of the gear 13 to mesh with the gear 12 and the gear 13. As a result, the power plate 21 starts moving toward the this side of a tape player with the operation of the cam follower 22 following the outer circumference of the cam 20.

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a fast forward/rewind mechanism for a deep-deep player, and in particular, the present invention relates to a fast forward/rewind mechanism for a deep-deep player. This is how it is done.

[Technical Background of the Invention] Recently, automation of the tape play 17 has progressed, and there is an A-drawing mechanism that automatically loads and ejects a cassette, and a reversal of the running direction of the tape that is pulled to the tape end. An automatic reverse change mechanism that automatically performs this has been proposed. These mechanisms use the driving force of a motor to perform each operation, so they have the advantage of being able to be operated with extremely little force compared to conventional manual tape players that use the pushing force of the operating lever. There is.

Incidentally, in addition to the above-mentioned autoloading and autoreverse change, the operation of a tape player includes a fast forward/rewind mode in which the tape is run at high speed and the beginning of a song is found if necessary.

In this fast-swivel rewinding mode, the idler gear ψ for low-speed drive is separated from the roll base on the winding side.

■Match the idler gear for high-speed drive to the glue base on the winding side.

■Retract the head that is crimped onto the tape until it makes light contact with the tape.

■ Move the pinch roller forward from the capstan shaft to interrupt tape feeding.

-3- The following operations are required.

Among these, the idler gear V for high-speed drive is held in a neutral position using a spring so that it does not mesh with the reel base on either the take-up side or the Arp supply side in the play state or in the stopped state. In addition, the head and pinch 1] - by rubber springs - are urged to press against the tape and capstan shaft. Removing the head or pinch roller requires considerable force.

However, in conventional tape players, even though automatic loading, A-1 to reverse change, etc., have been automated, no automation has been developed for switching to forward/rewind mode. Since the fast-forward lever and rewind lever were pressed exclusively by artificial pushing force, and the idler gear, head, etc. were moved against the force of the spring, switching operations were
It was impossible to perform a reverse change with extremely light force, such as a so-called "douza tudge".

-4- [Problem with Background Art 1 The reason why such switching operation to fast forward/rewind mode has not been automated is as follows.

That is, whether it is auto-loading or auto-reverse change, the motor serving as the drive source is the same as the motor for driving the tape. Then, the driving force of this motor is extracted using an intermittent gear when operating each mechanism, and the rotational force of this intermittent gear is converted into linear motion of a power plate using a cam, which is connected to the power plate. The automatic loading mechanism and automatic reverse change mechanism are activated.

In this way, in an automated tape player, the driving force for each mechanism is extracted from a single power plate that serves as the drive source, but in addition to these mechanisms, it is also possible to perform fast forward and rewind operations. This is extremely difficult, partly because the operating direction of the power plate is limited to one direction. Among these, autoloading and reverse change to O1 are clearly distinguished in terms of timing and direction of operation, such as when a cassette is installed or not. It is relatively easy to appropriately switch the driving force of the power plate and extract the power.

On the other hand, auto reverse change and fast forward rewinding have many operations in common, such as separating the low-speed drive idler from the winding side glue base and releasing the pinch roller from the capstan shaft. Therefore, it is extremely difficult to clearly distinguish and perform such common operations using a single power plate.

Moreover, whenever you are in fast forward/rewind mode, the position of the idler gear for high-speed drive that switches when you press each operation button is different between the fast forward side and the rewind side. With the conventional technology, it was impossible to perform the instep forwarding and rewinding operation using only the instep.

[Object of the Invention] The present invention was proposed to solve various problems in automating the fast forward/rewind mechanism.
+-Using the power plate that is the driving source for mechanisms such as reverse change, it has a simple structure and can reliably perform operations such as retracting the head and switching the high-speed idler gear to the fast forward or rewind side. The object of the present invention is to provide a fast forward/rewind mechanism.

[Summary of the Invention] The fast forward/rewind mechanism of the present invention is provided with a turn plate that rotates from a neutral position toward the forward side or the rewind side in accordance with the pushing operation of the fast forward lever or the rewind lever. , a relief part into which the suppressing part on the power plate side enters between the neutral positions, and a suppressed part with which the pressing part on the power plate side comes into contact when rotated to the rewinding side or the fast forwarding side, and the head is mounted. A means for suppressing a switching lever that supports the head plane 1 or the high-speed drive idler gear is provided.

In a platform where none of the fast forward/rewind levers are suppressed, turn play 1~ is kept at the neutral position and the pressing part on the head plate side is moved into the relief part of the turn play. The power plate is compatible with other auto rolling and auto reverse steering 12
Even if the turn play blade is driven to avoid the operation of the two mechanisms, the turn play blade will not be rotated and a fast forward/rewind operation will not be performed.

In addition, when fast forwarding or rewinding, the turn play blade rotates slightly to the fast forwarding side or rewinding side by pressing the lever.
The pressed part is pressed by the power plate that contacts the pressed part, and the turn plaid is rotated by the driving force of the motor, causing the head plaid to retreat and the idler gear for high-speed drive to be rotated. It is designed to perform a switching operation.

[Embodiment of the Invention] Hereinafter, an embodiment of the present invention will be specifically described based on the drawings.

(1) Configuration -8- ■ Reel-based drive transmission system...Figures 1 and 2 The forward and reverse flywheels 1 located below the board of the tape play V are driven by drive motors. It is constantly driven in the opposite direction by a belt stretched between the two. A capstan shaft 2 is integrally provided at the center of each flywheel 1, and a disk-shaped high-speed drive gear 3 having teeth on the outer periphery is integrally formed on the surface of the flywheel.

On the other hand, reel bases 4 on the forward side and the reverse side are arranged parallel to the arrangement direction of the forward side and reverse side flywheels 1 and at a constant distance from these flywheels 1. A driven gear 5 is integrally formed on the outer periphery of each reel base 4.

A high-speed drive idler gear 6 is provided at an intermediate portion between the flywheel 1 and the reel base 4. The idler gear 6 is rotatably supported at the tip of a switching lever 7 that extends between the forward and reverse flywheels 1. This switching lever 7 rotates around a support shaft 8 provided at the base end (on the flywheel 1 side), and when the switching lever 7 is rotated to the forward side or reverse side. For example, the high-speed drive idler gear 6 is set to mesh with the high-speed drive gear 3 of the flywheel and the driven gear 5 of the reel base.

On the opposite side of the high-speed drive idler gear 6, a low-speed drive idler gear 1'79 is provided. This low-speed drive idler gear 9 is rotatably supported at the center of the idler plays 1 to 10 extending along the arrangement direction of the reel bases. A forward side drive gear 11 and a reverse side drive gear r12 are installed in the vicinity of this idler gear 9 for low speed drive, which mesh with each other and rotate in opposite directions. The positions of these drive gears 11, 12 and idler gear 9 are such that when idler plate 10 moves forward, idler gear 9 meshes with forward drive gear 11 and reel base 4, while idler plate 10 engages with forward side drive gear 11 and reel base 4. When moved to the side -10-, it is set so as to mesh with the drive gear 12 on the reverse side and the reel base 4. In addition, these drive gears 11
．． Reference numeral 12 is connected to a drive motor by a transmission gear group and a belt (not shown), and when the power is turned on, it always rotates in the opposite direction as the motor rotates.

(2) Power plate drive system...FIGS. 3 and 4 An intermittent gear 13 is provided on the side of the reverse side drive gear 12. This intermittent gear 13 has a notch 14 in which gear teeth are not formed around A, and when this notch 14 faces the reverse side drive gear 12, the reverse side drive gear 12 If the rotation is not transmitted and the position of the notch 14 is shifted, the drive gear 12 is driven once again to the position of the notch 14.

A recess 15 is provided on the lower surface of the intermittent gear 1713 in alignment with the notch 14 . The tip of a stopper 16 provided on the side of the intermittent gear 13 is engaged with this recess 15.

-11- This stopper 16 is biased by a spring 17 so that its tip always enters into the four parts 15. Further, an auxiliary stopper 18 is provided near this stopper 16 and faces in the same direction. It is biased so that it enters.

In front of this intermittent gear 13, there is a power plate drive cam 20 which consists of a drive part that expands in a spiral shape from the center and a return part that returns to a substantially straight line connecting the maximum diameter part of the drive part and the center. is integrally installed (J). This drive cam 20
A power plate 21 is arranged above the power plate 21 so as to be able to reciprocate.
- A round-shaped cam follower 22 is in contact with the outer periphery of the drive cam 20. And this cam follower 22nd place F
No. 1 is set so that the cam follower 22 is located approximately at the center of the linear return portion of the drive cam 20 when the intermittent gear 13 is engaged with the studs 1 to 16.

-12- On the upper surface of the central portion of the power plate 21, a bottle-shaped one-hole suppression portion 23 is provided. This pressing portion 23 serves as a driving source for rotating the turn plate in the present invention.

(1) Head plate: Figures 5 and 6 A head plate 24 is provided on the upper surface side of the base plate of the tape player so as to be movable back and forth along the width direction of the tape player. This rad plate 24 includes a head extending along the arrangement direction of the reel base 4 and a binding roller installation portion 2.
4a1 An idler plate connecting portion 24b1 extending laterally at the back side of the tape player and a fast forward/rewinding mechanism connecting portion 240 extending laterally at the center of the tape player.
It is composed of. And this head plate 2
4 is always biased toward the reel pulse 4 side by a spring of a head crimping mechanism (not shown).

A head 25 is fixed at the center of the heads of the head plays 1 to 24 and the pinjer roller installation section 24a. Support shafts of pinch rollers 26 on the forward side and the reverse side are fixed to both sides of this head 25, and as the head plate 24 moves back and forth, the head 25 and the pinch roller 26 also move back and forth at the same time. It looks like this.

An idler plate switching cam 27 with a narrowed center portion is provided at the tip of the idler plate connecting portion 24b, and a bottle-shaped protrusion 29 protruding from one end of the single-shaped link 28 is inserted into the switching cam 27. ing. The thin end of this single-shaped link 28 is connected to the idler plate 10.

Head plate 24 Connection part 24 to medium heat instep feeding and rewinding mechanism. A roller 30 that is suppressed by the fast forward/rewind mechanism of the present invention is attached to the lower surface of the tip of c.

■Fast forward/rewind lever...Figures 7 to 9 In the tape player of this embodiment, a rewind lever 33, a fast forward lever 34, a play/program change lever 3
5, and a crush lever 36 are installed. These operating levers are arranged in parallel on the entire surface of the tape player so that they can be pushed in the -14- direction. Of these operation levers, the rewind lever 33 and the fast forward lever 34 are each provided with a lock pin 37, while the play/program change lever 35 and the stop lever 36 are provided with lock pins 37, respectively.
A release pin 38 is provided.

Three lock plates are provided in a direction perpendicular to each of these operating levers, and these three lock plates are provided with springs/1. It is always biased toward the left side in the figure by O.

A T-shaped off plate 41 having arms extending in three directions is provided on the left side of the lock plate 39. The arm 41a on the front side of this off plate 41 is connected to the lock plate 39.
is engaged with the left end of the Further, the central arm 41b extending in the horizontal direction engages with the release protrusion 42 provided on the power plays 1 to 21, and is pressed toward the back of the tape player when the power plate 21 starts moving. Further, as shown in Fig. 5.6, the arm 41C extending toward the inner side of the off-plate 41 engages with one end -15- of the memory plate 42 extending in the width direction of the tape player. This memory plate 42 is attached so as to be movable in the lateral and rotational directions with respect to a support shaft 43 provided in the tape player, and the end opposite to the off plate 41 is connected to the head plate. 24 toward the instep feeding and rewinding mechanism connecting portion 24C side.

The lock plate 39 has a lock pin 37 for each operating lever.
Alternatively, a long hole 44 extending in the front-rear direction of the tape player is formed in alignment with the position of the release pin 38. The length of this elongated hole 44 is set to a size commensurate with the pushing stroke of each of the levers. On the right side edge of each member 7L/171, that is, on the edge opposite to the direction in which the three lock plates are pulled by the spring 40, a tapered portion 45 inclined toward the inner side of the tape play V is formed in the elongated hole 44. formed inward. In addition, in the elongated holes 44 for the rewind lever 33 and the fast forward lever 34 into which the lock bin 37 is inserted, there is a stage at the rear (back side) of the tapered part 45 that engages with the pick bin 37 each day. A portion 46 is formed.

-16- Furthermore, a switching plate 47 is provided at a portion of each of the levers except for the stop lever 36.

This switching plate 47 is supported so as to be movable back and forth with respect to the tape player. Lock bin 3 in this switching plate 47
7. Also, in a portion corresponding to the release pin 38, a long hole 48 into which each of these bottles is inserted is formed. This long hole 48
The position is such that when each lever is pushed in, the edge on the back side of the lever comes into contact with the lock bin 37 and the release pin 38, and the switch plate 47 is moved to the back side of the tape play V by these bins 37 and 38. It is set in a place where it can be. Four springs are stretched between the switching plate 47 and the base plate of the tape player, and the switching plate 47 is urged toward the front side of the tape player V by the springs 49.

A pair of tapered suppressing pieces 50 are provided on the side edges of the switching plate 47, respectively, and are inclined toward the front side and the back side of the tape player.
．． 51 are provided. In addition, the first tapered pressing piece 50 is inclined toward the front side of the tape player.
is provided facing the stopper 16 of the intermittent gear 1-17-3, and the switching plate 4
As the gear 7 moves toward the inner side, the stopper 16 is pressed so as to be removed from the recess 15 of the intermittent gear 13.

On the other hand, the second tapered pressing piece 51 inclined toward the back of the tape play \7 is connected to the auxiliary stopper 1 of the intermittent gear 13.
8, and the auxiliary stopper 18 is connected to the spring 19.
The auxiliary stopper 18 is brought into engagement with the four parts 15 of the intermittent gear 13 for the first time when the switching plate 47 is moved toward the inner side by pressing outward from the recessed portion 15 against the force of .

Between this switching plate 47 and the [1st plate 39]
As shown in the figure, an interlocking plate 53 is provided which is movable in the front and back direction. This interlocking plate 53 is pressed by a lock pin 37 provided on the rewind lever 33 and the instep feed lever 34 to move toward the back of the tape player, and is normally moved toward the front of the tape player by a spring 54. There is one group.

Further, this interlocking plate 53 engages with the -18- tip end of the memory plate 42 at a notch 52 provided therein. That is, when the interlocking plate 53 is located on the front side, the memory plate 42 is pulled so that the leading end of the interlocking plate 53 does not come into contact with the fast forward/rewind mechanism connecting portion 24C of the head plate 24. . A switch suppressing piece 55 is integrally provided on this interlocking plate 53. This switch suppressing piece 55 presses the closing switch of the electromagnetic plunger that holds the turn plate in a rotating state in the present invention.

■Fast forward/rewind mechanism...Figs. 10 to 12 The turn plate 60 in the fast forward/rewind mechanism of the present invention includes the tips of the rewind lever 33 and the fast forward lever 34, and the suppressing portion 23 provided on the power plate 21. , and the tip of the fast-forward/rewind mechanism connecting portion 24C of the head plate 24, and is rotatably attached to the support shaft 61 at a position surrounded by.

This turn plate 60 is provided with protrusions 62 and 63 facing the tapered tips of the rewind lever 33 and the fast forward lever 34. Additionally, a relief portion 64 is formed opposite to the suppressing portion 23 of the power plate 21 and extending in the direction J of movement of the pressing portion 23 . On both sides of this escape portion 64, two suppressed portions 65 and 66 are formed, one on the fast-forward side and the other on the rewind side, each having a circular arc shape. Further, on the head plate side of the turn plate 60, there are recessed portions 67 facing the 1-r 30, and suppression portions 68 and 69 on the rewind side and fast forward side that curve and extend toward the head plate side on both sides of these four portions 67. is formed.

Further, a U-shaped spring 7 integrally attached to the turn plate 60 is provided on the head plate side of the turn plate 60.
Both end portions of the 0 protrude from the left and right sides of a projecting piece 71 provided at the tip of the switching lever 7 that supports the high-speed drive idler gear/slope.

This turn plate 60 is moved by a spring 72.
The power plate is always biased to such a position that the pressing part 23 faces the escape part 64 and the [1-lar 30 of the head plate faces the recess 67].

This spring 72 is connected to the turn plate 60.
20 - - Both ends of a spring 72 are engaged with the edges of openings 73 of the same shape drilled in the base plate of the player, and the turn plate 60 rotates with respect to the base plate to close the frontage of both sides. When the position of the portion 73 is shifted, the distance between both ends of the spring 72 is narrowed, and the spring 72 is charged with force and presses the turn plate 60 until the position of the opening 73 matches the position of the opening of the decorative plate. be.

A lock plate 74 is provided on the side of the turn plate t-60 for locking the turn plate in the rewind side or fast forward side rotating position.

This lock plate 74 is a U-shaped member, and is rotatably attached to a support shaft at a part of its corner. One end of this lock plate 74 is extended toward the outer periphery of the turn plate 60, and the tip of the lock plate 74 corresponds to the steps 75 and 76 on the fast forward side and the rewind side provided on the outer periphery of the turn plate 1 and 60. This is an engaging portion 77.

On the other hand, the opposite end of the lock plate 74 faces the suction plunger 78. And knee 21
- The lock plate 77I is always urged toward the suction plunge reflex 8 side by a spring 79 provided between it and the substrate.

This suction plunger 78 is excited by a closing switch 80 installed near it, and this closing switch 80 causes the interlocking plate 53 on the fast forward/rewind operation lever side to move toward the concave side of the tape player. When the switch is pressed, the switch suppressing piece 55 presses the suction plunger 78.
This is to turn on the power to the The suction plunger 78 of the IC1 is also connected to a song interval detection mechanism that detects unrecorded areas on the tape, so that when the head detects an unrecorded area on the tape, its power is cut off. ing.

(2) Function Next, the function of the forwarding and rewinding mechanism of this embodiment having the above-mentioned configuration will be explained.

■ Suppressing operation of the fast forward or rewind lever When the rewind lever 33 or the fast forward lever 371 is pressed from the state shown in FIG. While pressing , move forward towards the back of the Arp player. Then, the lock plate 39
Move to the right side of the diagram against the When the lock pin 37 passes over the tapered portion 45, the lock plate 39
0 and moves to the left side, and the stepped portion 46 is pulled by the lock bin 3.
7, and as a result, the pushed-in rewind lever 33 or fast-forward lever 34 is locked in the pushed-in position.

(Refer to FIG. 8) As the rewind lever 33 or fast forward lever 34 is pushed in, the lock bin 37 moves between the switching plate 47 and the interlocking plate 53.
Press toward the back of the tape player. Then,
To lock the lock plate 39, press the rewind lever 33.
Alternatively, when the fast forward lever 34 stops at the pushed-in position, the switching plate 47 and the connecting plate 53 also stop at the position moved toward the back of the tape player. (See Figure 8.11) ■ Drive of the power plate As the switching plate 47 moves as described above, the switching plate 4-23
- The tapered pressing piece 50 on the front side stacked in 7 steps pushes the stopper 16 to release the intermittent gear 13.

Then, as shown in FIG. 2, during the return portion of the drive cam 20, there is a 1! - The cam follower 22, which has been closed, is moved by the force of the spring 31 that pulls the power plate 21 toward the minimum diameter portion of the drive cam 20. This Camboroa 22
As a result of this movement, the drive cam 20 and the intermittent gear X 13 integrally provided therewith rotate slightly. This slight rotation of the intermittent gear 13 causes the notch 14 to move to the reverse side drive gear\712.
The reverse drive gear 12 and intermittent gear 1 come off from the front of the
3 will mesh. As a result, the intermittent gear 13 starts rotating due to the constantly rotating drive gear 12, and the driving force 1120 also rotates at the same time, so that the power plays 1 to 21 are activated by the action of the cam follower 22 that follows the outer circumference of the drive cam 20. Start moving toward the player. (See Figure 4) ■ Rotation of the turn plate Simultaneously with the rotation of the power plate as described in (■) above, -24- the rewind lever 33 or the fast forward lever 34 (
In the illustrated example, the tapered tip of the rewinding lever 33) hits a protrusion 62 provided on the turn plate 60, and by sliding this protrusion 62 along a part of the taper, the turn plate 60 Slightly rotate it toward the rewind side (clockwise in the diagram). (See Figure 11) Then, the turn plate 6
The pressed part 65 on the rewinding side provided on the power plate side of o is shaped so as to cross the movement line of the suppressing part 23 of the power plate, and is pushed by the force of the intermittent gear 13 to the front side of the tape player. The pressing part 23 of the power plate moving to the side comes into contact with the edge of this rewinding side pressing part 68. When the power plate 21 further moves toward the front side of the tape player, its pressing portion 23 rotates the turn plate 60 clockwise while sliding on the pressed portion 65. The rotation will be greater than the rotation angle.

(See Fig. 12) Due to such a large rotation of the turn plate 60, the roller 30 of the head plate 24, which had been facing the fourth part 07 of the turn play I~, is moved to the side of the recess 67. It is pressed by the provided arc-shaped pushing LT portion 68 and retreats toward the right side in the figure, that is, in the direction away from the reel base and the capstan shaft. At the same time, the tip of the U-shaped spring 70 provided on the turn plate 60 moves the switching lever 7 to the front side of the tape player, that is, to the rewinding side, thereby switching the high-speed drive idler gear V6 to the flywheel on the rewinding side. 1 and reel base 4 with each drive gear V3.5,
The high speed rotational force on the flywheel 1 side is transmitted to the rewinding side glue base 4.

As a result, the head plate 24 moves back against the force of the spring pushing it toward the roll base to a position where the tape and the head make light contact. Then, the pinch roller 26 provided in the shape of the head plate also retreats, and the pressure bond between the pinch roller 26 and the capstan shaft 2 is released, so that the tape T can freely run as the reel base rotates at high speed. become.

-26- ■ Disconnecting the low-speed drive system Now, as described above, prior to the meshing operation of the high-speed drive idler gear 6 with the reel base 4, the low-speed drive idler gear 9, which has been running the reel base at low speed in the play state, It is necessary to cut 111=1- from the reel base. This disconnection operation of the idler gear 9 for low speed drive is as follows:
This is performed at the beginning of the backward movement of the head plate 24.

That is, in the state f)s + et al. of FIG. 5, the head plate 24
is pressed by the turn plate 60 and starts to retreat,
Idler plate connection portion 24h of head plate 24
The stepped switching cam 27 presses the bottle-shaped projection 29 of the one-shaped link 28, and positions the bottle-shaped projection 29 at a narrowed position in the center of the switching cam 27. Then, this single-shaped link 28 is pressed by the switching cam 27 and rotates, and the idler plays 1 to 10 connected to the opposite end of the single-shaped link 28 change so that the low-speed drive idler gear 9 is on the forward side. It moves to a position where it does not contact any of the reel bases 4 on the reverse side. (See Figure 6) With this - 27
- Then, the reel base 4 is separated from both the forward side drive VJ gear 11 and the reverse side drive gear 12, and rotates at high speed due to the engagement of the tc high speed drive eye and lug gear 6 to rewind the tape or Fast forwarding is possible.

■ Maintaining the fast-forward/rewind state The pressing part 23 of the power plate that has rotated the turn plate 60 significantly as described above causes the intermittent gear 13 to rotate once and its notch 1/I faces the reverse drive gear 12. When it comes to the position, the No.J Mulowor 22 installed on the power plate
slides down to the linear return portion of the drive cam 20, so that it separates from the turn plate 60 and retreats to its original state.

However, after such a pressing part 23) despite the mouth,
During the continuation of the fast-forwarding and rewinding operation, the turn plate 60 stops at a position that has been largely rotated by the pressing portion 23. That is, as shown in FIG. 12, the engaging portion 77 of the lock plate 74 engages with the step portion 76 on the rewinding side provided on the turn plate I.60, thereby preventing the turn plate 60 from returning.

-28- The opposite end of the lock plate 74 is suctioned by the suction plunger 78 to ensure engagement with the turn plate 60.

That is, as shown in FIG. 11, when the interlocking plate 53 moves forward with the pushing operation of the fast forward or rewind lever, the switch suppressing piece 55 installed on the interlocking plate 53 pushes the closing switch 8.
In order to press 0, this suction plunger 78 is excited,
The lock plate 74 is attracted.

Note that while the fast forward/rewind state continues, the fast forward/rewind lever is locked in the push-in position by the lock plate 39 and the interlocking plate 53 is in the forward position accordingly, so the closing switch 80 is not pushed by the switch pressing piece 55. Therefore, the energized state of the attraction plunger 78 continues.

Further, when the backward movement of the head is completed and the intermittent gear 13 rotates once and the recess 15 returns to its original position, the switching plate 47 is moved because the tape is still being fast-forwarded and rewound in this state. It is still stopped in the forward position. Therefore, the stopper 16 cannot be rotated because it is pressed by the chipper-shaped suppressing piece 50.
The intermittent gear 13 is not locked by this stopper 16. On the other hand, since the auxiliary stopper 18 is still + The rotation of the intermittent gear 13 is stopped. (Refer to Figure 9) The above explanation deals with the case where the rewinding operation is performed, but in the case of fast forwarding, pressing the instep feed lever 34 and rotating the return plate 60 in the opposite direction. death,
Thereafter, the head plate 24 and the high-speed drive idler gear 6 are switched in the same manner.

■ Is it by selecting the beginning of a song? Canceling forwarding and rewinding When the head, which is in light contact with the tape T running at high speed, detects an unrecorded portion between songs, a signal from the song interval detection device is input to the suction plunge door 8, and the suction plunger 78 is de-energized.

Then, the lock plate 74 can freely rotate.
30-, the engagement between the tip engaging portion 77 and the stepped portion 76 is disengaged, and the turn plate 60 returns to its original position under the force of the spring 72.

Along with this return operation of the turn plate, the head plate 1-24, which has been pressed by the suppressing portion 69 of the turn plate 1-, advances at J: to the position where the head presses against the tape T by the force of a spring (not shown). do. At the same time, the pinch roller moves forward due to the movement of the head plate, and either the forward side or reverse side pinch roller presses against the capstan shaft and pinches the bottom of the tape. At the same time, the U-shaped spring 70 installed on the turn plate 60 returns the switching lever 7 to the neutral position, so the high-speed drive idler gear 6 is separated from the reel base 4, and the high-speed drive of the reel base is stopped. Then, during the forward movement of the head plate, the switching cam 27 provided on the idler plate connecting portion 24b of the head plate no longer presses the single-shaped link 28, so that the switching cam 27 is not connected to the single-shaped link 28. The idler plate 10 moves to the preset forward side or reverse side, and its low-speed drive idler gear 9 meshes with the reel base 4, so the reel base is in the normal play state and the tape T is moved at low speed. It does the driving.

Now, as the head plate moves forward as shown in FIG. 5, the tip of the fast-forward/rewind mechanism connecting portion 24.0 presses the tip of the memory plate 42, moving the memory plate 42 to the left in the figure. Then, the A-plate 41 engaged with the memory plate 42 rotates counterclockwise, and its front arm 41a moves the three lock plates to the right, causing the lock bin 37 to engage with the stepped portion 46. is removed, the rewind lever 33 or fast forward lever 3/I returns to its original state.

Also, the interlocking plate 53 that was pressed against this lock bin 37
returns to its original position, the closing switch 80 that had been pressed by the switch suppressing piece 55 of this interlocking plate is also released, and power to the suction plunger 78 is cut off.

(See FIG. 10) -32- At the same time, the switching plate 47 also returns to its original position, so the auxiliary stopper 18 is pushed into the tapered shape 51 and cannot engage with the four parts 15. On the other hand, since the stopper 16 is separated from the tapered pressing piece 50, it engages with the recess 15 when the intermittent gear 13 rotates once, and can stop the rotation M.

■ Releasing fast forward/rewind using the operation lever When the play/program change lever 35 or the stop lever 36 is pressed while fast forward/rewind is continuing, the release bin 38 provided thereon moves forward, and this release bin 38 closes the lock plate 39. Press the tapered portion 45 of. As a result, the lock plate 39 moves to the right against the force of the spring 40, and accordingly, the engagement between the step portion 46 and the lock bin 37 is disengaged, and the fast forward lever 33 and the rewind lever 34 are moved to the right by the return spring (not shown). The force causes it to protrude toward the entire surface of the tape player. At the same time, the switching plate 47 and the interlocking plate 53, which had been pressed by the lock bin 37, return to the front side, and the switch suppressing piece 55 provided on the interlocking plate 53 no longer presses the closing switch -33-80. The excitation to the attraction plunger 78 is released. As a result, the T10 lock plate 74 and the turn plate 60 are disengaged, and the turn plate 60 can now rotate freely.

In the following, in the same manner as in the case of releasing the instep forwarding and rewinding due to the music selection operation in (2) above, each idler gear is switched and the head (head) pinch roller is moved forward, and the intermittent gear 13 is further stopped by the stopper 16. will be done.

■ Release of fast forward rewinding when the tape end is reached When the end of the tape is reached in the fast forward rewinding state, the auxiliary stopper 18 is pressed by an arp end detection device (not shown), and the engagement between the auxiliary stopper 18 and the recess 15 is released. Ru. Then, as described above, the intermittent gear 13 is slightly rotated by the cam follower of the power plate 21, which moves toward the back of the tape player due to the spring 31, and comes to mesh with the reverse drive gear 12. When the power plate 21 moves toward the tape play ψ middle side -34-, the release protrusion 42 provided on the power plate 21 rotates the off plate 41 upward in FIG.

As a result, the lock plate 39 is moved to the right by the off plate 41, and the fast forwarding and rewinding is subsequently released in the same order as described in (■) above.

Note that when the off plate cancels fast forward rewinding and the turn plate 60 returns to its original position, even if the power plate 21 has moved to the front side of the tape due to the program engine at the tape end, The pressing part 2
3 is provided in the turn plate 60 (to prevent crowding inside the relief part 64 and press the turn plate 60,
Despite the movement of the power plate 21, no fast forward or rewind operation is performed.

[Embodiment of @l] The present invention is not limited to the illustrated embodiment, and the following embodiments can also be adopted.

■ The illustrated embodiment is a high-speed drive idler gear 6-3.
In order to press the switching lever 7 of 5-, a U-shaped spring 70 is provided on the turn plate 60, but instead of this U-shaped spring 70, a spring similar to that used to press the roller 30 of the head plate can be used. , a pair of suppressors can also be installed on the turn plate 60.

■ Instead of holding the lock plate 74 to keep the turn play 1-60 in the rotational position on the suction plunger 78, the lock plate 74 is pulled by a spring or the like and engaged with the turn play 1-60. You can also do that. In that case, use the play and program change lever 3.
5 or the push-in operation of the stop lever 36, the lock plate 74 is rotated against the force of the spring to disengage from the turn plate 60, or the power plate is moved to the tape end. etc., to rotate the lock plate 74.

In the illustrated embodiment, a pair of protrusions 62 and 63 are provided on the turn plate 60, and a part of the taper is provided on the fast forward/rewind lever 33 and 34 side. Even if a projecting piece is provided on the fast forward/rewind lever 33, 34 side, it is possible to rotate the turn plate slightly at the initial stage of fast forward/rewind.

In the illustrated embodiment, the idler plate 10 of the idler gear for low-speed drive is returned to the neutral position by the backward movement of the head plate. By providing a square spring similar to the square spring 70 or a suppressing portion, the low-speed drive idler gear A7 can be directly moved to the neutral position by the turn plate 60.

■Also, instead of pressing the head plate and the switching lever of the high-speed drive idler gear separately using the turn play 1-60, only the switching lever of the idler gear is pressed using the turn play 1~, and depending on the position of the switching lever of the idler gear. The head plate can also be moved backwards.

When the lock plate 7 is held by the suction plunger 78 as in the illustrated embodiment, in order to press the switch 78 for closing the suction plunger, instead of providing the switch pressing piece 55 on the interlocking plate 53, It is also possible to provide a switch pressing piece on the switching plate 47 or the fast forward/rewind lever 33,34.

■ Move the stopper 16 that engages the four parts 15 of the intermittent gear 13 to the fast forward rewind lever 33. ．． It is not necessary to provide the auxiliary stopper 18 if it comes off from the four parts 15 only during the pushing operation of 3'l and does not come off from the recess after the pushing is completed and when returning to the front side.

[Effects of the Invention] As described above, according to the present invention, the turn plate, which slightly rotates left and right as the fast forward rewind lever is pushed in,
The force of the power plate allows the head and pinch roller to move backward and to switch each drive gear. As a result, if you press the operating lever with a light force such as rotating the turn plate, all subsequent operations that require force on the head plate will be performed by the driving force of the motor, allowing fast-forward winding. Return-38
− Extremely easy to operate. Moreover, the turn plate has a relief part into which the suppressing part of the power plate enters, so when the fast forward rewind lever is not pushed in, the pressing force from the power plate is not transmitted to the turn plate. Therefore, there is no inconvenience such as the rewinding and fast forwarding mechanism operating during other auto-reverse engines or auto-loading. In particular, the present invention provides a relief part of the power plate, a suppressed part,
Since it also forms the head plate, the suppressing part of the idler gear switching lever, etc., various operations can be performed with a small number of parts, and even though the fast forward/rewind mechanism is automated, the number of parts in the tape player can be reduced. This also has the effect of reducing the amount of noise and simplifying the structure.

[Brief explanation of the drawing]

The drawings show an embodiment of the feeding and rewinding mechanism of the present invention, in which FIG. 1 is a plan view of the reel base drive system in the playing state, FIG. 2 is a plan view of the reel base drive system in the rewinding state, and FIG. Figure 3 is a plan view of the power plate drive system -39- in a stopped state, Figure 4 is a plan view of it in a moving state, and Figure 5 is a plan view of the power plate drive system in a stopped state.
The figure is a plan view of the head plate in the playing state and the memory plate in the return state to play, Figure 6 is a plan view of the head plate in the rewinding state and the memory plate in the playing state, and Figure 7 is a plan view of the fast forward/rewind operation lever. FIG. 8 is a plan view of the state before pushing in, and FIG.
FIG. 10 is a plan view showing the state of the intermittent gear after one rotation when the fast forward/rewind operating lever is in the depressed state, FIG. 10 is a plan view of the fast forward/rewind mechanism in the present invention in the playing state, and FIG. 11 is the fast forward/rewind FIG. 12 is a plan view showing a state in which the turn plate has been slightly rotated by the operating lever, and FIG. 12 is a plan view showing a state in which the turn plate has been completely rotated by the power plate and the transition to the fast forward/rewind mode has been completed. 1... flywheel, 4... reel base, 6...
...High-speed drive idler gear, 7...Switching lever, 9
...Low speed drive idler gear, 10...Idle drive 40-rate, 11...Forward side drive gear, 12...
Reverse side drive gear, 13... Intermittent gear, 15...
Recessed portion, 16...Stopper, 18...Auxiliary stopper, 20...Power plate drive cam, 21...Power plate, 23...Press portion, 24...Head plate, 27...Idler Plate switching cam, 28・
...L-shaped link, 30...Roller, 33...Rewind lever, 34...Fast forward lever, 37...Lock pin, 39...Lock plate, 41...Off plate, 47 ...Switching plate, 53...Interlocking plate, 55...Switch suppression piece, 60...Turn play 1-161...
・Support shaft, 62.63... Protrusion piece, 64... Relief part, 6
5.66...Pressed part, 67...Concave part, 68.69
...Press portion, 70...U-shaped spring, 71...
・Protrusion piece, 72... Spring, 73... Opening, 7
4...Lock plate, 75.76...Step part, 77
...Engaging portion, 78...Adsorption plunger, 79...
Spring, 80... Closing switch. Applicant Clarion Co., Ltd. -41- 10th Place/-He-1'1/'/-\-=L 11th Prisoner,,--,1,zu:),

Claims (3)

[Claims] (1) A turn plate is provided that rotates from the neutral position to the ♀ feed side or the rewind side as the fast forward lever or rewind lever is pushed in, and this turn plate has a suppressing portion on the power plate side in the neutral position. A switching section that supports the head plate on which the head is mounted or the idler gear for high-speed drive is provided. A fast forward/rewind mechanism characterized in that it is provided with means for pressing the lever and further provided with a locking means for maintaining the rotating state of the turn plate by the power plate. (2) The pressing means of the head play 1 or the switching lever consists of a pair of head plate suppression parts on the fast forward side and rewind side provided on the outer periphery of the turn plate, and a U-shaped spring that rotates together with the turn plate. -1= A patent claim in which the pair of pressing portions face the head plate side rollers from left and right so as to sandwich them, and the tip of the U-shaped spring engages with the tip of the switching lever. The fast forward/rewind mechanism according to item 1. (3) The locking means for the turn plate is a lock plate provided near the turn plate, and this lock plate is attracted by a suction plunger and engaged with the turn plate when the turn plate is rotated. A fast forward/rewind mechanism according to claim 1 or 2.