JP2990771B2 - Tape player - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The tape player of the present invention will be described in detail according to the following items.

A. Industrial application fields B. Summary of the invention C. Prior art D. Problems to be solved by the invention E. Means to solve the problems F. Embodiments a. Chassis, reel base [FIGS. 4, FIG. 6 to FIG. 8] b. Reel base driving means [FIG. 1, FIG. 3, FIG. 4, FIG. 6, FIG. 7] c. Brake mechanism [FIG. 1, FIG. To FIG. 8] d. Mode slider [FIGS. 1 to 3, FIG. 5, FIG. 6, FIG. 8] e. Head drum, capstan, pinch roller, loading block, etc. [FIG. 2, FIG. Figures 3 and 6] f. Tape loading and formation of mode f-1. Tape loading f-2. Formation of tape running mode G. Effects of the invention (A. Industrial application field) The present invention is a novel tape Regarding the player. For more information,
A tape player that performs tape loading when forming at least one mode of running the tape, that is, a tape loading that draws a tape from a tape reel of an installed tape cassette and causes the tape to pass through a predetermined path, particularly, The drawing of the tape for tape loading is performed from a supply-side tape reel (hereinafter, referred to as “S reel”). For this reason, when performing tape loading, a reel base (hereinafter, referred to as an “S” reel) is engaged with the S reel. , "S-side reel base") in a rotatable state, and a reel base (hereinafter, "T-side reel") engaged with a take-up side tape reel (hereinafter, referred to as "T reel"). This is related to a tape player in which the tape is pulled out from the S reel by applying a brake only to the "table". In addition, the control of the brake on the reel base during tape loading can be performed without providing a special control mechanism, and the brake can be applied to the S-side reel base at the same timing as the end of tape loading. Moreover, it is an object of the present invention to provide a novel tape player that does not require special means for setting such timing.

(B. Summary of the Invention) The tape player according to the present invention comprises a supply side and a take-up side which respectively contact the two reel bases on the supply side and the take-up side by the resilience of the resilient means and apply a brake to these reel bases. The brake lever includes two brake levers, and a slider for moving at least a tape loading moving member to move the tape by performing the tape loading. A cam portion provided on the slider has a winding-side brake lever at the time of tape loading. Is brought into contact with the take-up reel base by the force of the resilient means, and the supply-side brake lever is held at a brake release position separated from the supply-side reel base. Release the holding at the release position so that the take-up brake lever and supply brake lever come into contact with each reel base. The movement is controlled, so that during tape loading, it is possible to perform the control of applying a brake only to the take-up reel base without providing a special control mechanism, and to terminate the tape loading. The brake can be applied to the supply reel base at the same timing as that described above, and no special means is required for taking such a timing.

(C. Prior Art) For example, in a tape player provided with a rotating magnetic head, usually, at least before the tape runs, tape loading for passing the tape through a predetermined path is performed. Is generally taken out from the S reel, and in order to allow the tape to be pulled out from the S reel,
Normally, only the side reel base is braked and the S side reel base is rotatable.

Conventionally, there are various means for applying a brake only to the T-side reel base, but a means using a brushless motor for rotating the reel base, a driving source such as an electromagnetic plunger, and the like at the time of tape loading. There are many such as those that use a special mechanism that has a brake lever and the like.

(D. Problems to be Solved by the Invention) In a motor using a brushless motor for rotating a reel stand, its rotor is connected to a rotation shaft of the reel stand. Can be controlled on the circuit so that only the T-side reel stand is braked during tape loading, and therefore, there is an advantage that a special mechanism is not particularly required. However, this is based on the premise that a brushless motor is used as a drive source for rotating the reel base, and since the brushless motor is an extremely expensive member, it is cost-prohibitive depending on the grade of the tape player. There is a problem.

In this respect, a dedicated control mechanism does not necessarily increase the cost, but requires a considerable number of dedicated parts, and therefore requires a large number of assembling man-hours and a space for arranging the mechanism. There is a problem that it becomes necessary and hinders miniaturization of the tape player.

(E. Means for Solving the Problems) By the way, in a tape player that performs tape loading, a slider that moves at least a moving member for tape loading to perform tape loading by being moved is provided. In many cases, this type of slider is typically moved between a plurality of positions including a position before tape loading is performed and a position when tape loading is completed.

In view of the above, in order to solve the above-described problems, the tape player of the present invention applies a brake to the supply-side reel base by being in contact with the supply-side reel base to which the supply-side tape reel is engaged. A supply-side brake lever, a winding-side brake lever that abuts on a winding-side reel table with which the winding-side tape reel is engaged to apply a brake to the winding-side reel table, and two brake levers. A resilient means for biasing to the reel base side and a cam portion are provided to move a tape loading moving member including at least the supply side brake lever and the winding side brake lever to perform tape loading. A cam section provided on the slider is provided so that the take-up brake lever is provided with a resilient means on the take-up reel base during tape loading. And the supply side brake lever is held at the brake release position that is separated from the supply side reel base. At the same time as the tape loading is completed, the supply side brake lever is released and held at the brake release position. And the movement of the supply side brake lever is controlled such that the supply side brake lever comes into contact with each reel base.

Therefore, according to the tape player of the present invention, the supply reel unit is rotatable until the tape loading is completed, and the brake is applied only to the take-up reel unit, and simultaneously with the completion of the tape loading, the supply reel is set. All of the series of controls to apply brakes to the table can be performed using the sliders required for this type of tape player, so no special mechanism is required for performing the above control. In addition, the timing between the completion of the tape loading and the brake applied to the supply-side reel base is accurately controlled by the slider, so that the operation reliability can be improved.

(F. Example) Hereinafter, the tape player of the present invention will be described in detail with reference to an illustrated example.

In the illustrated embodiment, the present invention relates to a rotary head type audio tape recorder (hereinafter referred to as "R-DAT").
This is applied to 1.

(A. Chassis, reel base) [FIGS. 1 to 4 and FIGS. 6 to 8] 2 is a mechanical chassis, 3 is a front portion of the mechanical chassis 2 (a downward direction in FIG. 2 is a front side). In the figure, the direction toward the left is defined as the left side, and the direction toward the right is defined as the right side. Yes.)
The sub-chassis 3 is provided with two reel base support shafts 4, which are separated from each other in the left-right direction. , 4 rotatably support reel stands 5, 5 '.

The reel bases 5, 5 'are integrally formed with a high-speed gear 6, 6 in the form of a spur gear for a tape high-speed running mode for fast-forwarding and rewinding the tape, and brake drums 7, 7 in a cylindrical shape short in the axial direction. In the drawing, the main parts 8, 8 (in the drawing, the left reel base 5 (hereinafter referred to as "S side reel base" in FIG. 6 and the right reel base 5 ' Only the main part 8) is shown.), And low-speed gears 9, 9 having the same spur gear shape for a play mode for performing recording and reproduction on a tape are formed.
Rotating body 10, 10 cylindrically rotatably fitted to 8
A reel engaging shaft 11, 11 which is integrally rotated with the upper end of the main part 8, 8 and is slidable within a certain range in the axial direction; Friction plates 12 and 12 (see FIG. 6) inserted between opposed surfaces of the low-speed gears 9 and 6 that face each other in the axial direction, and reel engaging shafts 11 and 11.
, The coil springs 13, 13 and the like contracted between the lower end surface of the rotor and the upper end surfaces of the rotating bodies 10, 10, and the brake drums 7, 7, the high-speed gears 6, 6, and the low-speed gears 9, 9 are arranged in this order from below. And the high-speed gears 6, 6 and the low-speed gears 9, 9 are coil springs.
They are pressed against each other by the resilient forces of the friction plates 13 and 13 via the friction plates 12 and 12.

Therefore, the reel bases 5, 5 'are rotated by the input of the rotational force to the high-speed gears 6, 6 or the low-speed gears 9, 9;
Further, the brakes are applied to the high-speed gears 6, 6 and the brake drums 7, 7, so that the rotation of the reel engaging shafts 11, 11 is disabled.

And the upper part of such a reel stand 5, 5 ', ie,
The upper portions of the rotating bodies 10, 10 from the upper ends are inserted through holes 2a, 2a formed in the mechanical chassis 2 and protrude upward.

(B. Reel base driving means) [FIG. 1, FIG. 3, FIG. 4, FIG. 6, FIG. 7] Reference numeral 14 denotes a swing lever which is long in the front-rear direction, and a gear support shaft is provided at a substantially intermediate portion thereof. 15 is vertically provided, and an insertion hole 16 is formed at the front end.

Reference numeral 17 denotes a swing gear having a flat gear shape. The center of the swing gear is rotatably supported by a substantially intermediate portion of the gear support shaft 15, and a coil spring is disposed between the upper surface thereof and the lower surface of the swing lever 14. 18 is retracted, and the swing lever is
14 is in frictional contact with the lower surface.

Reference numeral 19 denotes a gear support shaft supported by the sub-chassis 3 so as to penetrate the sub-chassis in the up-down direction, and is disposed at an intermediate position between the two reel bases 5 and 5 'when viewed from the front-rear direction. A drive gear 20 and a driven pulley 21 (refer to FIG. 1) integrally formed below the gear support shaft 19 are rotatably supported, and a motor for driving a reel stand mounted on the sub-chassis 3. Drive pulley 2 fixed to rotation shaft 22a of 22
An endless belt 24 is stretched between 3 and the driven pulley 21.

The swing lever 14 is supported by the gear support shaft 19 so that the gear support shaft 19 is rotatable in the horizontal direction and is displaceable in the vertical direction by inserting the gear support shaft 19 into the insertion hole 16, Compression coil spring 25 externally fitted to gear support shaft 19
(See FIG. 4), the upward movement force is urged, and the position in the vertical direction is defined by a mode slider described later. 5 'high-speed gear 6, 6
In the play mode, the swing gear 17 is moved to the play position at a height corresponding to the low-speed gears 9, 9 of the reel bases 5, 5 '. .

The swing gear 17 is meshed with the drive gear 20 from substantially behind.

Then, when the motor 22 is rotated, the driving gear 20 is rotated to apply a rotational force to the swing gear 17, and the swing lever 14 is subjected to a frictional action between the swing gear 17 and the swing gear 17. Since a rotational force in the same direction as the rotational direction of the drive gear 20 is urged, the swing lever 14 is rotated, and the swing gear 17 is moved to the gear 6 or 9 of the T-side reel base 5 ', or to the S side. The T-side reel base 5 'is rotated in the tape winding direction, that is, clockwise, or the S-side reel base 5 is rotated in the tape winding direction, that is, in the tape winding direction. ,
Rotated counterclockwise.

The selective rotation of the reel bases 5, 5 'is performed as described above, and the rotation speed is controlled by controlling the rotation speed of the motor 22.

(C. Brake mechanism) [FIGS. 1, 3 to 8] Reference numerals 26 and 27 denote brake levers, and these brake levers 26 and 27 are individually pressed against the reel bases 5 and 5 'to thereby control the reel base. The brake is applied to each of the reel bases 5, 5 ', specifically, the rotation of the reel base engaging shafts 11, 11 of the reel bases 5, 5' is disabled. 5, a supply side brake lever (hereinafter, referred to as an "S side brake lever"), and a right side brake lever 27 is a take-up side brake lever for the T side reel base 5 '(hereinafter, referred to as "S side brake lever").
It is called "T side brake lever". ).

The brake levers 26 and 27 have a horizontal flat main part 2
8, 28, and cylindrical portions 29, 29 whose axial direction extends in the vertical direction,
Of the front side edges of the upper surfaces of the main portions 28, 28, spring hook portions 30, 30 protruding from the positions biased toward the cylindrical portions 29, 29, and a substantially middle portion near the rear edge of the main portions 28, 28 The brake shoe mounting pins 31 and 31 projecting downward from the bottom are integrally formed, and the left end of the main portion 28 of the S-side brake lever 26 and the right end of the main portion 28 of the T-side brake lever 27 are cylindrical. Brake shoes 32, 32 which are respectively continuous with a substantially middle portion in the vertical direction of the parts 29, 29 and which are cylindrical on the brake shoe mounting pins 31, 31.
Are externally fitted and fixed.

Reference numeral 33 denotes a columnar controlled pin protruding upward from the upper surface of the main portion 28 of the S-side brake lever 26.

Reference numerals 34, 34 denote lever support shafts erected on the sub-chassis 3, and are respectively disposed at positions close to the reel bases 5, 5 'from the substantially front side when viewed from above.

Then, the lever support shafts 34, 34 are individually inserted into the cylindrical portions 29, 29 of the brake levers 26 and 27, whereby
The brake levers 26 and 27 are supported on the lever support shafts 34 and 34 so as to be rotatable in the horizontal direction.
A tension spring 35 is stretched between the spring hook portions 30 and 30 of the 26 and 27, whereby the S-side brake lever 26 is provided with a turning force in a counterclockwise direction as viewed from above, The lever 27 is energized by a clockwise rotating force.

The brake shoes 32, 32 are at substantially the same height as the high-speed gears 6, 6 of the reel bases 5, 5 ', and are positioned so as to face the reel bases 5, 5' from the side inclined forward. That is, the brake shoe 32 of the S-side brake lever 26 is opposed to the high-speed gear 6 from a slightly right front, and the brake shoe 32 of the T-side brake lever 27 is opposed to a slightly left front.

Therefore, as long as the brake levers 26 and 27 are not pressed in the direction opposite to the direction of the rotational force biased by them, as shown in FIG.
Is held at a position where it is pressed against the high-speed gears 6 (hereinafter, referred to as a “brake position”).
The rotation of 5 'is disabled.

Reference numeral 36 denotes a brake release lever, which is long in the left-right direction, has an intermediate portion rotatably supported by a shaft 37 provided upright on the sub-chassis 3, and has a left end connected to a piston rod 38a of an electromagnetic plunger 38. The upper end of the pressing pin 36a erected at the other end is disposed with a margin in a hole 39 formed in the main part 28 of the T-side brake lever 27, and the electromagnetic plunger 38 is excited. The piston rod 38
When a is retracted, the brake release lever 36 is rotated clockwise as viewed from above, and the pressing pin 36a presses the front edge of the hole 39, thereby turning the T-side brake lever 27 counterclockwise. When the T-side brake lever 27 is rotated in the counterclockwise direction, the pressing portion 40 protruding leftward from the rear of the rotation end portion rotates the S-side brake lever 26. The pressed portion 41 provided at the moving end and facing the pressing portion 40 of the T-side brake lever 27 from the front is pressed toward the front to rotate the S-side brake lever 26 clockwise. As a result, the brake shoes 32, 32 of the brake levers 26, 27 are moved to the gear portions 6,
The brake is moved to the brake release position away from the reel base 6 (see FIG. 7), and the brake on the reel bases 5, 5 'is released.

When the excitation of the electromagnetic plunger 38 is released from this state, the brake levers 26 and 27 are returned to the brake position by the tensile force of the tension spring 35.

Further, the electromagnetic plunger 38 is excited when the tape runs, and is not excited otherwise.

The brakes applied to the reel bases 5 and 5 'by the brake levers 26 and 27 and the release thereof are basically performed as described above. The control of the brake on the S-side reel base 5 by the S-side brake lever 26 will be described later. This is also done by the mode slider. This will be described later.

(D. Mode Slider) [FIGS. 1 to 3, FIG. 5, FIG. 6, and FIG. 8] Reference numeral 42 denotes a mode slider, and a predetermined value is obtained by moving the mode slider 42 to a predetermined position. Mode is selectively formed.

The mode slider 42 has a substantially rectangular plate shape that is long in the left-right direction when viewed from above, and is movable in a left-right direction within a certain range by a guide member (not shown) fixed to the lower surface of the mechanical chassis 2. And a rack 43 formed on the lower surface thereof so as to extend in the left-right direction is integrated with a gear 45 of an output stage of a drive system 44 (shown only in FIG. 1) provided on the upper surface of the sub-chassis 3. The rack 43 is moved by the pinion gear 45a and is moved by the pinion gear 45a. The movement is the initial position indicated by the broken line in FIG. 2, that is, the left end position in the movement range, and the play position. That is, the movement is performed between the right end position in the movement range and the stop position indicated by the two-dot chain line in FIG. 2, that is, the position slightly returned to the left from the play position.

Reference numeral 46 denotes an opening which is formed at the center of the mode slider 42 in the front-rear direction and which is long in the left-right direction.
Is inserted through the opening 46.

Reference numeral 47 denotes an elongated cam hole formed to extend in the left-right direction at a position closer to the left end side of a portion near the front edge of the mode slider 42, and has a diameter of a controlled pin 33 formed on the S-side brake lever 26. It has a slightly larger width, and a notch 48 is formed in a portion of the side edge near the left end.
(Hereinafter referred to as “regulation release section”).
a and 48a are formed on the inclined edges which are spaced apart from each other as they go to the front end.

The upper end of the controlled pin 33 is located in such a cam slot 47, and when the mode slider 42 is at a position other than the stop position, the controlled pin 33 is in the cam slot 47. Of the part 49 other than the regulation release part 48 (hereinafter, the
Say "Regulatory Department". ), And in this state, the controlled pin 33 is prevented from further moving backward by abutting on the rear edge of the regulating portion 49.
The side brake lever 26 is held at the brake release position.
Also, when the mode slider 42 is moved to the stop position, the controlled pin 33 is relatively positioned at the restriction release section 48, and in this state, the inhibition of the controlled pin 33 from moving backward is released, Therefore, in this state, the S-side brake lever 26 is held at the brake position unless the electromagnetic plunger 38 is excited.

Reference numerals 50 and 50 denote rack plates movably supported in the left and right directions within a predetermined range at the rear end of the main part of the mode slider 42. A limiter spring (not shown) is interposed between the mode slider 42 and the left and right sides. While the movement in the direction is not prevented, the movement is performed integrally with the mode slider 42, and the movement is performed as described above, thereby rotating a loading gear described later.

(E. Head drum, capstan, pinch roller, loading block, etc.) [FIG. 2, FIG. 3, FIG. 6] 51 is a head drum located at the rear end of the upper surface of the mechanical chassis 2 and fixed. It comprises a drum 51a, a rotating drum 51b coaxial with the drum 51a, and rotating magnetic heads 51c, 51c, etc., which rotate integrally with the rotating drum 51b while being located on the outer peripheral portion of the gap between the two drums 51a and 51b.

52, 52 'are fixed tape guides erected on the upper surface of the mechanical chassis 2, and 53, 53, 53 are tape cassettes on these.
54 (see FIG. 2) is a cassette positioning pin on which the cassette is placed.

A capstan 55 is located on the upper surface of the mechanical chassis 2 at a position slightly diagonally forward from the head drum 51, and is rotated by a capstan motor (not shown) located below the mechanical chassis 2.

Reference numeral 56 denotes a pinch roller lever, which is rotatably supported by the mechanical chassis 2, supports a pinch roller 57 and a swing guide 58, and is moved by the movement of the mode slider 42. I have.

Reference numerals 59, 59 denote loading blocks for performing tape loading, the moving bases 60, 60 and the moving bases.
The moving bases 60 and 60 are head drums of the mechanical chassis 2 and are composed of loading posts 61 and 61 erected on 60 and 60, respectively.
Foldable / extendable loading arms 62, 62 provided below the mechanical chassis 2 while being supported so as to move along guide long grooves 2b, 2b formed in the form of cut grooves on both left and right sides of 51. And a loading gear 6 provided at the base end of the loading arms 62, 62.
The loading arms 62, 62 are folded and extended by rotating the racks 3, 63 by the rack plates 50, 50.

(F. Tape Loading, Formation of Mode) (f-1. Tape Loading) In the initial mode, the mode slider 42 is at the initial position, whereby the pinch roller lever 56 and the loading blocks 59, 59 are moved to the second position. It is held at the initial position indicated by the solid line in the figure. Then, the S-side brake lever 26
Is held at the brake release position by the regulating portion 49 of the cam long hole 47, and the T-side brake lever 27 is held at the brake position.

When the tape cassette 54 is mounted on the R-DAT 1 from this state, the pinch roller 57, the swing guide 58, and the loading posts 61, 61 are inserted into the tape pull-out recess 64 provided on the front surface of the cassette case of the tape cassette 54. Are relatively positioned, and a supply-side tape reel 65 (hereinafter, referred to as “S reel”) and a winding-side tape reel 65 ′ (hereinafter, referred to as “T reel”) included in the tape cassette 54. 2
The two reel stands 5, 5 'are separately engaged with the reel engaging shafts 11, 11, respectively.

When the tape loading command is issued, the mode slider 42 is moved to the stop position, whereby the loading gears 63, 63 are rotated by the rack plates 50, 50, and the loading arms 62, 62 are extended. As the loading blocks 59, 59 are moved rearward, the pinch roller lever 56 is rotated clockwise as viewed from above, and the loading blocks 59, 59 are moved as shown by two-dot chain lines in FIG. The movement is stopped when the catchers 66, 66 fixed to the mechanical chassis 2 abut, and the rotation of the pinch roller lever 56 is stopped substantially simultaneously.

The portion of the magnetic tape 67 that has been located along the front surface of the tape pull-out recess 64 is pulled by the loading posts 61, 61, the pinch rollers 57, and the like, so that the magnetic tape 67 is moved to the tape cassette 54. And a part thereof is wound around the outer peripheral surface of the head drum 51 by a predetermined winding angle, and the pinch roller 57 is moved to a standby position slightly separated from the capstan 55.

Tape loading is performed in this manner, and when tape loading is performed, the magnetic tape 67 is exclusively S-reel.
Withdrawn from 65. That is, since the electromagnetic plunger 38 is not excited except when the tape is running, the T-side brake lever is not operated while the tape is loaded.
Numeral 27 is held at the brake position to prevent rotation of the T-side reel base 5 ', so that the T-side reel 65' does not rotate during this time. On the other hand, when the mode slider 42 is between the initial position and the stop position, the S-side brake lever 26 is held at the brake release position by the restricting portion 49 of the long cam hole 47, so that the S-side reel base 5 And the S reel 65 engaged with it is rotatable. Therefore, the magnetic tape 67 is pulled out from the S reel 65 while rotating the rotatable S reel 65 in the tape feeding direction.

And at the same time as tape loading is completed,
The S-side reel base 5 is also braked. That is, when the mode slider 42 is moved to the stop position, the controlled pin 33 is located in the restriction release portion 48 of the cam elongated hole 47, whereby the S-side brake lever 26 can move backward. Therefore, the spring is moved to the brake position by the tensile force of the tension spring 35, whereby the S-side reel base 5 is braked.

Therefore, when the tape loading is completed, the S reel
Since rotation of 65 is also prevented, loosening of the magnetic tape 67 pulled out of the tape cassette 54 due to tape loading is prevented.

When the tape unloading, that is, the command to wind the magnetic tape 67 pulled out as described above onto the tape reel is performed, the mode slider 42 is moved to the initial position, and the mode slider 42 is moved to the initial position. As it is moved, the inclined edge 48a on the right side of the restriction release portion 48 of the cam long hole 47
Moves the controlled pin 33 of the S-side brake lever 26 to the right
49 to move the S-side brake lever 26 to the brake release position to make the S-side reel base 5 rotatable, and that the S-side reel base 5 is rotated in the tape winding direction and 67 is wound on the S reel 65.

(F-2. Formation of Tape Running Mode) The state in which the tape loading is completed is the stop mode, and in the high-speed running of the tape such as fast-forwarding and rewinding of the tape, the electromagnetic plunger 38 is excited from this state, and the brake lever 26, 27 is moved to the brake release position and the reel base 5 or 5 'is rotated at a high speed in the tape winding direction. That is, when the tape is fast-forwarded, the T-side reel base 5 'is rotated at a high speed in a clockwise direction as viewed from above, whereby the magnetic tape 67 is pulled out from the S-reel 65 and wound on the T-reel 65'. When the tape is to be rewound, the S-side reel base 5 is rotated at a high speed in a counterclockwise direction as viewed from above, so that the magnetic tape 67 is moved to the T reel 65. ′ And is wound at high speed in the direction of being wound on the S reel 65.

Further, when a command to form the play mode is issued, the mode slider 42 is moved to the play position, whereby the S-side brake lever 26 is moved so that the controlled pin 33 of the S side brake lever 26 49, the brake lever is held at the brake release position, the T-side brake lever 27 is moved to the brake release position by exciting the electromagnetic plunger 38, and the loading blocks 59, 59
66 and 66, the pinch roller lever 56 is further rotated clockwise, and the pinch roller 57 is pressed against the capstan 55 with the magnetic tape 67 interposed therebetween.
Is driven at a constant speed by a rotating capstan 55 and a pinch roller 57 which is pressed against and rotates on the
Or 5 'is rotated at a low speed in the tape winding direction, the tape reel 65 or 65' winds the magnetic tape 67, and the rotating magnetic heads 51c, 51c scan the recording surface of the magnetic tape 67,
As a result, recording of a signal on the magnetic tape 67 or reproduction of a recorded signal is performed.

In this manner, when the magnetic tape 67 runs, the rotation of the magnetic tape 67 is restricted by a back tension mechanism (not shown) on the reel base on which the tape reel from which the magnetic tape 67 is pulled out in this mode is engaged. A force is applied, thereby providing back tension to the magnetic tape 67 being drawn from the tape reel.

(G. Effects of the Invention) As is clear from the above description, the tape player of the present invention comes into contact with the supply-side reel base to which the supply-side tape reel is engaged, so that the brake is applied to the supply-side reel base. A take-up side brake lever, a take-up side brake lever that applies a brake to the take-up side reel base by contacting the take-up side reel base with which the take-up side tape reel is engaged, and two brake levers And a cam unit is provided and moved to move a tape loading moving member including at least the supply side brake lever and the take-up side brake lever, thereby performing tape loading. With a slider to perform
The cam portion provided on the slider has a brake in which the take-up brake lever is brought into contact with the take-up reel base by urging means during tape loading, and the supply-side brake lever is separated from the supply-side reel base. It was held at the release position, and at the same time as the tape loading was completed, the supply side brake lever was released from being held at the brake release position, and the movement was controlled so that the take-up side brake lever and supply side brake lever came into contact with each reel base. It is characterized by the following.

Therefore, according to the tape player of the present invention, the supply reel unit is rotatable until the tape loading is completed, and the brake is applied only to the take-up reel unit, and simultaneously with the completion of the tape loading, the supply reel is set. All of the series of controls for applying brakes to the table can be performed using a slider that is necessary for this type of tape player, and no special mechanism for performing the above control is required. Moreover, the timing between the completion of the tape loading and the brake applied to the supply-side reel base is precisely controlled by the slider, so that the reliability of the operation can be improved.

In the above embodiment, a controlled pin integral with the supply side brake lever is protruded from the supply side brake lever, a cam portion having a hole shape is formed on the slider, and the controlled pin is positioned in the cam hole. However, this makes it possible to completely eliminate the need for a dedicated independent component for controlling the brake. However, in carrying out the present invention, the cam portion may be formed as an independent component and attached to the slider, or the cam portion in the form of a projection may be formed integrally with the slider. May be.

In the above embodiment, the present invention is applied to the R-DAT. However, the present invention is not limited to such an example, but can be applied to various tape players that perform tape loading.

Further, the specific shape or structure shown in the above embodiment is only an example of the embodiment in carrying out the present invention, and the technical scope of the present invention is limitedly released by these. is not.

[Brief description of the drawings]

The drawings show an embodiment in which the tape player of the present invention is applied to an R-DAT. FIG. 1 is an enlarged plan view showing a state below a mechanical chassis in an initial mode, and FIG. FIG. 3 is a plan view showing the outline of the entire DAT, FIG. 3 is a perspective view showing the entire R-DAT in the initial mode, and FIG.
The figure is a perspective view of a portion below the mechanical chassis, FIG. 5 is an exploded perspective view showing a mode slider and a brake lever,
FIG. 6 is an enlarged cross-sectional view of a main part along the line VI-VI of FIG. 1, FIG. 7 is a plan view showing the main part when the tape runs, and FIG. 8 is a plan view showing the main part in the stop mode. is there. DESCRIPTION OF SYMBOLS 1... Tape player, 5... Supply side reel stand, 5 ′... Take up side reel stand, 26... Supply side brake lever, 27... Take up side brake lever, 35. 42 Slider 47 Cam part 59 Moving member 65 Supply tape reel 65 'Take-up tape reel 67 Tape

Continuation of front page (58) Field surveyed (Int.Cl. ⁶ , DB name) G11B 15/665

Claims (1)

(57) [Claims] 1. A supply-side brake lever for applying a brake to a supply-side reel base by contacting the supply-side reel base with which the supply-side tape reel is engaged, and a winding with which the take-up-side tape reel is engaged. A take-up side brake lever for applying a brake to the take-up side reel base by contacting the take-up side reel base; a spring means for urging the two brake levers toward the respective reel bases; And a slider for moving a tape loading moving member including at least the supply side brake lever and the winding side brake lever by being moved to perform tape loading. During the tape loading, the take-up side brake lever is brought into contact with the take-up side reel base by the urging of the resilient means. The supply-side brake lever is held at a brake release position separated from the supply-side reel base, and simultaneously with the completion of tape loading, the supply-side brake lever is released from being held at the brake release position to release the take-up brake lever and the supply-side brake. A tape player characterized in that movement control is performed so that a lever comes into contact with each reel base.