JP2949812B2 - 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 applications B. Summary of the invention C. Prior art a. General background b. Conventional position control means of pinch rollers and moving guides D. Problems to be solved by the invention E. To solve the problems F. Embodiment a. Reel base, head drum, capstan, etc. [FIGS. 1 to 4, 6, and 7] b. Mode slider [FIGS. 1 to 7] c. Crimping Lever [Fig. 1, Fig. 5 to Fig. 7] d. Rotating lever, pinch roller, movement guide [Fig. 1 to Fig. 6] d-1. Structure d-2. Position control e. Tape loading Mechanism [FIGS. 2 to 4] f. Tape loading and mode formation G. Effects of the invention (A. Industrial application field) The present invention relates to a novel tape player. For more information,
A tape player having a pinch roller pressed against a capstan in a play mode in which recording or reproduction is performed and a movable tape guide controlling at least a tape path in the above-described mode, particularly, selectively forming a predetermined mode in a linear direction. The present invention relates to a tape player that is movably supported by a slider that forms a predetermined mode by being moved to a predetermined position, and includes a pinch roller and a movable tape guide, i.e., a predetermined guide in various modes of a movement guide. By using a slider for movement to a position and holding at the position, a new tape player which can perform the above-described movement and holding control with a small number of components and with high accuracy is provided. is there.

(B. Summary of the Invention) The tape player of the present invention supports a pinch roller and a moving guide on one rotating lever which is moved between a plurality of positions corresponding to a plurality of modes, and a slider has a control. A cam is formed, and a single pressure lever and a pressure spring are provided, respectively, so that the rotation lever is moved to a predetermined position and held at that position by the control cam and the pressure lever. The position control of the rollers and the moving guide can be performed with a small number of components and with high accuracy.

(C. Prior Art) (a. General Background) For example, in a tape player or the like equipped with a rotating magnetic head, a tape is pulled out from a mounted tape cassette, and the tape is pulled through a predetermined tape path in a tape traveling system. The tape is run while so-called tape loading for passing the tape is performed, and the tape path is generally different depending on the selected mode.

For this reason, in this type of tape player, some of the members involved in the regulation of the tape path are provided so as to be movable between a plurality of predetermined positions, and the moving member is moved to the predetermined position. By doing so, tape loading is performed, or a tape path corresponding to the mode is selectively formed. For example, in a video tape recorder or the like, usually, a member for tape loading, a pinch roller, and one or more tape guides are movably supported on a chassis, and these moving members are moved to predetermined positions in a stop mode. And a stop mode is formed by moving the pinch roller to a position where the pinch roller does not come into contact with the capstan.
We say "movement guide". ) Are positioned so as to define predetermined portions of the entire tape path, and the tape is fast-forwarded and rewound in a state where the tape path is regulated in this manner, and a play mode for recording and reproducing is performed. Is formed, at least the pinch roller is further moved, and the pinch roller is pressed against the capstan with the tape interposed therebetween.

Therefore, the above-mentioned various moving members, in particular, the pinch roller and the moving guide are supported by a supporting member rotatably supported within a certain range on the chassis, and the supporting member is moved to a predetermined position by an appropriate moving means. By moving, the pinch roller and the movement guide are moved to predetermined positions according to the mode.

(B. Conventional pinch roller and moving guide position control means) As described above, the positions of the pinch roller and the moving guide in the stop mode and the play mode are important factors for regulating the tape path. If the accuracy of the tape is incorrect, not only will the tape path itself be disturbed, but also the winding positions of various tape guides and tape reels in the axial direction will be deviated, causing accidents such as so-called step winding and jamming. become.

Therefore, in this type of tape player, a rotating lever that has conventionally supported a pinch roller and a moving guide is rotatably supported on a chassis, and the rotating lever is moved to a predetermined position, thereby providing a pinch roller. And the moving guide is moved to a predetermined position corresponding to the mode, and one end is provided with a disconnecting means which is engaged with the rotating lever, and the rotating means is rotated by the stepping force of the stepping means. The moving lever is crimped to a predetermined position.

For example, in the tape player disclosed in Japanese Utility Model Application No. 60-30705, a pinch roller and a moving guide are specially supported by two rotating levers, and these two rotating levers are moved to the positions in the initial mode. And two pressing levers for separately pressing the above-mentioned two rotating levers are provided on the loading ring for tape loading, and a tension spring is provided between the two pressing levers and the loading ring. When the loading ring is rotated toward the tape loading completion position, the pressing lever presses the rotation lever while the loading ring is being rotated toward the tape loading completion position, and the movement guide contacts the predetermined positioning member almost simultaneously with the completion of the tape loading. Contact, and is pressed against the positioning member by the elastic force of the tension spring, and the loading ring is further rotated from that state. The pinch roller is brought into contact with the capstan and pressed against the capstan by the elastic force of the tension spring.

(D. Problems to be Solved by the Invention) According to the above-described conventional tape player, in order to control the positions of the pinch roller and the moving guide, at least two rotating levers, two pressing levers, two resilient means, and Since one positioning member is required, the number of parts is very large, and therefore, the number of assembly steps is also large.
There were problems such as an increase in cost and an increase in weight.

(E. Means for Solving the Problems) Incidentally, in this type of tape player, a slider which is moved in a linear direction is often used as a control member for selectively forming a plurality of modes. Such position control of the slider is performed with high accuracy.

In view of this point, the tape player of the present invention solves the above-mentioned problems by providing a first position in an initial mode before tape loading is performed, a second position in a play mode, and these two positions. Between the third position, that is, the position in the stop mode, the pinch roller and the moving guide are supported by one rotating lever, and a pressed portion is provided on the rotating lever to move in a linear direction. A slider which is freely supported and moves to a predetermined position to form a predetermined mode is provided with a control cam having a holding portion extending in a direction parallel to the moving direction and a pressing portion extending in a direction intersecting the holding portion. The crimping lever, which is biased by the force of the crimping spring, is movably supported. In the initial mode, the movement of the pressed portion is prevented by the pressing portion of the control cam, so that the rotation lever is rotated. Is held at the first position, the slider moves, and the pressed portion of the rotating lever is pressed by the pressing portion of the control cam of the slider and rides on the holding portion, whereby the rotating lever is turned to the third position. And the slider is moved and held in the third position, the slider is further moved, and the pressing lever presses the pressed portion of the rotating lever, thereby rotating the rotating lever to the second position, and further moving the slider from there. Is moved to move the pressing lever against the elastic force of the pressing spring, so that the pinch roller is pressed against the capstan.

Therefore, according to the tape player of the present invention, the switching of the positions of the pinch roller and the moving guide and the holding at the positions are each performed by a single rotating lever, a pressure lever, a pressure spring, and a slider which is necessary for this type of tape player. Can be performed by using only the conventional method for switching and holding the positions of the pinch rollers and the moving guide in the tape player. And the position control of the rotating lever is performed with the same high precision as that of the position control performed on the slider itself. Therefore, the pinch roller can be controlled with a small number of parts and with high precision. And the position of the moving guide can be controlled.

(F. Embodiment) Hereinafter, details of the tape player of the present invention will be described with reference to the illustrated embodiment.

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. Reel stand, head drum, capstan, etc.)
Figures 4 to 4, 6 and 7] 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, and an upward direction is a rear side). In addition, the leftward direction in the drawing is the left side, and the rightward direction is the right side in the following description.
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 configured such that gear units 6, 6, each having two input gears, and reel engaging shafts 7, 7, which form the upper end of the reel bases 5, 5', are coaxially arranged. ,
The upper part thereof is projected upward through holes 2a, 2a formed in the mechanical chassis 2.

8 is a gear portion 6 of one of the reel bases 5 and 5 '.
The swing gear 9 rotates the reel base 5 or 5 ′ in the tape winding direction by being engaged with the support shaft 9. The swing gear 9 is supported by a support shaft 10 fixed to the sub-chassis 3 so as to be rotatable substantially in the left-right direction. A swinging lever, 11 is a motor for rotating the reel base, 12 is a driving gear rotated by the motor 11 and rotatably supported on the support shaft 10, and a swinging gear 8 is freely rotatable by the swinging lever 9. And is in frictional contact with the swing lever 9 and is meshed with the drive gear 12. When the drive gear 12 is rotated, the swing lever 9 is rotated in the same direction as the rotation direction. Move the swing gear 8 to the left reel base 5
(Hereinafter, referred to as “S-side reel table”) or the gear section 6 of the right reel table 5 ′ (hereinafter, referred to as “T-side reel table”). Or 5 '
Is rotated in the tape winding direction.

The reel bases 5 and 5 'are rotated at a relatively low speed in a play mode in which recording or reproduction is performed, and are rotated at a high speed in a mode in which the tape runs at a high speed such as fast-forwarding or rewinding the tape. When the tape is not running except during tape loading, the brakes are applied by the brake levers 13, 13 pressed against the reel bases 5, 5 '. During tape loading, the S side is used until the tape is completed. Brake lever 13 for reel base 5
Is held at a position separated from the reel base 5 (see FIG. 7), whereby only the brake on the T-side reel base 5 'is applied.

Numeral 14 denotes a head drum arranged at the rear end of the upper surface of the mechanical chassis 2, which is located at the outer peripheral portion of a fixed drum 14a, a rotary drum 14b coaxial with the fixed drum 14a, and a gap between these two drums 14a and 14b. And rotating magnetic heads 14c, 14c, etc., which rotate integrally with the rotating drum 14b.

Reference numerals 15 and 15 'denote fixed tape guides erected on the mechanical chassis 2, one of which is located approximately left forward from the head drum 14 and the other 15' is approximately right away from the head drum 14. It is arranged in the position which did.

Reference numerals 16, 16, and 16 denote cassette positioning pins on which the tape cassette 17 (see FIG. 2) is removably mounted.

Reference numeral 18 denotes a capstan rotatably supported by a capstan housing (not shown) fixed to the mechanical chassis 2, and is disposed at a position slightly separated from the fixed tape guide 15 'to a slightly right front side when viewed from above. It is configured to be rotated by a capstan motor 19 (see FIG. 6) provided below the mechanical chassis 2.

(B. Mode Slider) [FIGS. 1 to 7] Reference numeral 20 denotes a mode slider supported on the lower surface of the mechanical chassis 2 so as to be movable in the left-right direction. The moving block is moved to a predetermined position such as a loading block, a pinch roller and a moving guide to selectively form one of the various modes.

The mode slider 20 has a main part 21 having a substantially rectangular shape elongated in the left-right direction when viewed from above, and a control part 22 and the like horizontally projecting rearward from the right end of the rear edge of the main part 21 by synthetic resin. The main portion 21 has a relatively large opening 23 located at the center in the width direction (front-rear direction) and extending in the left-right direction, and a guided length located near the front edge and extending in the left-right direction. Holes 24, 24 and a rack 25 or the like protruding from a position deviated to the right end side of the lower surface and extending in the left-right direction are formed.

A guide member (not shown) projecting downward from the mechanical chassis 2 is slidably engaged with the guided elongated holes 24, 24, the opening 23, the side edge, and the like. It is supported by the mechanical chassis 2 so as to be movable within a certain range in the left-right direction.

Reference numeral 26 denotes a drive unit provided at the right end of the sub-chassis 3, and includes a motor 27, a drive gear 28, and a number of reduction gears 29, 29, ... for transmitting the rotation of the motor 27 to the drive gear 28. The pinion gear 28a integral with the drive gear 28 is meshed with the rack 25 of the mode slider 20, and the rack 25 is fed by the pinion gear 28a so that the mode slider 20
Is moved right and left.

The mode slider 20 is positioned at the position indicated by the broken line in FIG.
That is, the initial position which is the left end position in the movement range, the position shown in FIG. 3, that is, the play position which is the right end position in the movement range, and the position shown by a two-dot chain line in FIG. The tape is loaded by moving the mode slider 20 from the initial position to the stop position, and the tape is loaded. The stop mode is formed by the arrival, and the play mode is formed by moving the mode slider 20 to the play position.

The control unit 22 is formed to be substantially L-shaped so that the left end of the rear half thereof is located to the left from the left end of the remaining part, and the right end thereof has a spring arrangement hole 30 long in the front-rear direction.
However, a substantially rectangular regulating hole 31 in the front-rear direction is provided at the approximate center of the rear end, and a circular support hole 32 is provided at the left end of the rear end.
Are formed, and the front side 33 of the rear half (hereinafter, referred to as
We say "holding part". ) Is formed on a flat surface extending in the left-right direction, and the front end of a cut groove 34 (hereinafter referred to as “pressing portion”) formed so as to extend in the front-rear direction is opened at the right end of the holding portion 33. I have.

Therefore, the holding portion 33 extends in a direction parallel to the moving direction of the mode slider 20, and the pressing portion 34
The holding portion 33 and the pressing portion 34 form a control cam 35 for controlling the position of a rotating lever described later.

(C. Crimping lever) [FIG. 1, FIG. 5 to FIG. 7] Reference numeral 36 denotes a crimping lever (second
In FIG. 3 and FIG. 3, illustration is omitted. The pressing lever 36 is also used for controlling the position of a rotating lever, which will be described later.

The pressure lever 36 is formed in a substantially U-shaped plate shape that opens forward as viewed from above, and has a left portion 37 and an intermediate portion 38.
A column-shaped projection 39 that is short in the axial direction is protruded from the lower surface of the corner where the right and left portions are continuous, and a stopper pin 41 is protruded from the lower surface of the corner where the right portion 40 and the intermediate portion 38 are continuous. A screw hole 39a (see FIG. 6) is formed in the lower end surface of the projection 39.

The length of the left part 37 in the front-back direction is the mode slider
The rear half of the right edge of the portion 37 extends in a direction parallel to the longitudinal direction of the portion 37, and is slightly longer than the front-rear width of the rear half of the control portion 22 of the controller 20, and the front half 37a (hereinafter referred to as a "pressing portion"). .) Are inclined so as to be displaced leftward as they go to the full edge.

The front end of the right part 40 is bent rightward, and a spring hook hole 40a is formed at the end of this part.

And such a pressure lever 36 is used as a mode slider.
The projection 39 is rotatably inserted into the support hole 32 of the control unit 22, and the screw 42 is inserted into the screw hole 39 a of the projection 39. By being screwed together, it is supported rotatably in the horizontal direction by the control unit 22, and
The stopper pin 41 is located in the regulating hole 31 of the slider 20, and the rotation of the pressing lever 36 is regulated within a certain range, and the stopper pin 41 rotates counterclockwise when viewed from above. Is stopped when the stopper pin 41 comes to a standby position where it comes into contact with the rear side edge of the restriction hole 31, as shown in FIG. 1 (A).

Reference numeral 43 denotes a tension spring, which is located in the spring arrangement hole 30 formed in the control unit 22 and whose both ends are pressed against the spring hooking portion 30a located at the rear end of the spring arrangement hole 30 of the control unit 22. The tension force of the tension spring 43 urges the pressure bonding lever 36 to rotate counterclockwise as viewed from above, by the tension force of the tension spring 43.

Thus, the pressure lever 36 is moved integrally with the mode slider 20 in the left-right direction, and when pressed in the clockwise direction, is rotated in the same direction with respect to the mode slider 20, so that the above-described pressing is performed. While there is no such position, it is held at the standby position.

In the state where the pressure lever 36 is at the standby position, most of the pressing portion 37a except for the rear end portion is substantially diagonally forward left from the position near the right end of the holding portion 33 of the control cam 35 of the mode slider 20. It is located to extend toward.

(D. Rotating Lever, Pinch Roller, and Moving Guide) [FIGS. 1 to 6] Reference numeral 44 denotes a rotating lever that supports a pinch roller 45 and a moving guide 46.

(D-1. Structure) The rotating lever 44 has a substantially V-shaped plate shape that opens rearward when viewed from above in the state shown in FIG. The rear end portion of the left half portion 44a is formed to be wide, and the left half portion 44a is slightly separated from each other in the left-right direction.
The support shafts 47 and 48 are erected, and the pinch roller 45 is rotatably supported on the left support shaft 47 of the support shafts 47 and 48, and the movement guide 46 is supported on the right support shaft 48 in an externally fitted manner. ing.

Also, the right half 44b of the rotating lever 44 has a wide middle portion so that the right edge thereof protrudes rightward in a triangular shape,
A hole 49 is formed at a substantially central portion of the wide intermediate portion, and a rear end portion of the right half portion 44b is bent leftward, and a pressed pin 50 is vertically provided at the portion.

51 is the right fixed tape guide 16 of the mechanical chassis 2
A short supporting shaft 52 is provided at a position slightly away from the front to the right, and an opening 52 is formed in the mechanical chassis 2 at a position immediately behind the supporting shaft 51.

When the support shaft 51 is inserted through the hole 49, the rotation lever 44 is supported by the support shaft 51 so as to be freely rotatable in the horizontal direction. When the mode slider 20 is at the initial position, the lower end of the pressed pin 50 is positioned at the rear end of the pressing portion 34 of the control cam 35 while the mode slider 20 is at the initial position. You.

The width of the pressing portion 34 is substantially the same as the diameter of the pressed pin 5.

(D-2. Control of position) The rotating lever 44 is provided with the mode slider 20 and the pressing lever 36.
By this, the first position shown in FIG. 1 (A) and shown by the solid line in FIG. 2 and the second position shown in FIG. 1 (D) and shown in FIG.
And a third position shown in FIG. 1 (B) and shown by a two-dot chain line in FIG.

That is, when the mode slider 20 is at the initial position, the movement of the pressed pin 50 is blocked by the pressing portion 34 of the control cam 35, whereby the rotating lever 44 is held at the first position. In the state, the pinch roller 45 is the capstan 18
The movement guide 46 is positioned substantially 90 ° in the counterclockwise direction at a central angle with respect to the pinch roller 45.

When the mode slider 20 moves rightward from this state, the left edge presses the pressed pin 50 rightward against the pressing portion 34 of the control cam 35, so that the rotating lever 44 is viewed from above. When the mode slider 20 is rotated clockwise and the mode slider 20 is moved to the stop position, the pressed pin 50 rides on the right end of the holding portion 33 as shown in FIG. The rotation of 44 toward the first position is prevented. In this way, the rotating lever 44 is moved to the third position and is held at that position. In this state, the pinch roller 45 is located near the capstan 18 from substantially the left front, The movement guide 46 is located at a position slightly away from the capstan 18 in the forward direction.

When the mode slider 20 is moved toward the play position from this state, the pressure lever 36
Is pressed against the pressed pin 50 so that the pressed pin 50
Is pressed substantially rightward, whereby the rotating lever 44 is further rotated clockwise to a position close to the second position, that is, a position where the pinch roller 45 is brought into contact with the capstan 18. (See FIG. 1 (C)). Until this time, the pressure lever 36 is held at the standby position by the tensile force of the tension spring 43. Then, from the above state, the mode slider 20 further moves rightward to reach the play position,
As a result, the pinch roller 45 is pressed against the capstan 18. That is, after the rotation lever 44 reaches the position shown in FIG. 1C, the rotation of the rotation lever 44 in the clockwise direction is performed by the pinch roller 45 being in contact with the capstan 18. The pressed pin 50 of the pressing portion 37a of the pressure lever 36 is
The portion that is in contact with the block is prevented from moving rightward by the pressed pin 50, and in this state, the mode slider 20
Is moved to the right, the pressure lever 36 is rotated clockwise against the tensile force of the tension spring 43, and the stopper pin 41 is separated from the rear edge of the regular hole 31. This allows
The tension force of the tension spring 43 is turned via the pressure lever 36.
The pinch roller 45 is pressed against the capstan 18 by this rotating power, and the rotating lever 44 and the moving guide 46 are rotated.
Is stably held. In this state, the movement guide 46 is located at a position slightly separated from the capstan 18 on the slightly right front side.

Further, when the mode slider 20 is moved from the play position to the stop position, the relative clockwise pressing on the pressure lever 36 performed by the pressed pin 50 is released. Crimping lever 36 is a tension spring
43, the pressing portion 37a is separated from the pressed pin 50 to the left by the pulling force of 43, whereby the pinch roller 45 is released from being pressed against the capstan 18 and the mode slider 20 is stopped. At the point when the hour position is reached, the pressed pin 50 comes into contact with the holding portion 33 of the control cam 35, and the rotation lever 44 is prevented from moving from the third position to the first position. Then, when the mode slider 20 is moved from this state to the initial position, the right edge of the pressing portion 34 of the control cam 35 contacts the pressed pin 50 and
50 is depressed to the left, thereby causing the pivoting lever 4 to pivot counterclockwise and move to the first position.

The movement of the rotation lever 44, the pinch roller 45 and the movement guide 46 supported by the rotation lever 44, and the holding at a predetermined position are performed as described above.

(E. Tape loading mechanism) [FIGS. 2 to 4] Reference numerals 53, 53 denote loading blocks for performing tape loading.
The moving bases 54, 54 are composed of loading drums 55, 55, etc., which are erected at 54, 54.
It is supported so as to move along guide long grooves 2b, 2b formed on both left and right sides of 14.

Reference numerals 56, 56 denote rack plates (first and second) that are movably supported on the rear end upper surface of the main portion 21 of the mode slider 20 within a certain range in the left-right direction and are connected to the mode slider 20 via a tension spring (not shown). 2 are shown only in FIG. 2), 57, 57 are rotatably supported on the lower surface of the mechanical chassis 2 and are loading gears 58, 58 meshed with the racks of the rack plates 56, 56.
Reference numeral 58 denotes a folding arm that can be freely extended and retracted. The loading arms 58 and 58 are provided with the loading gears 57 and 57.
Is extended or folded by being rotated, and its tip is rotatably connected to the moving bases 54, 54 of the loading blocks 53, 53.

When the mode slider 20 is at the initial position, the loading arms 58 and 58 are folded as shown in FIG.
When the mode slider 20 is moved to the stop position from this state, the loading gear 53, 53 is held at a standby position indicated by a solid line in the drawing, that is, a position substantially aligned with the pinch roller 45 and the movement guide 46. 57, 57 are rotated counterclockwise to extend the loading arms 58, 58 so that the loading blocks 53, 53 are mounted on the upper surface of the mechanical chassis 2 as shown by the two-dot chain line in FIG. When the mode slider 20 is moved from the stop position to the play position when the mode slider 20 is moved from the stop position to the play position, the tension is placed between the rack plates 56, 56 and the mode slider 20. The tension springs (not shown) are extended to urge the rack plates 56, 56 with a moving force toward the right, and the urged moving forces cause the loading blocks 53, 53 to catchers 59, 59. Is crimped.

(F. Tape Loading, Formation of Mode) In the initial mode, the mode slider 20 is at the initial position, and therefore, the rotating lever 44 is pressed by the pressing portion of the control cam 35.
The loading blocks 53 and 53 are held at the first position by the loading position and the standby position, respectively.

When the tape cassette 17 is mounted on the R-DAT 1 from this state, the pinch roller 45, the moving guide 46, and the loading posts 55, 55 are inserted into a tape pull-out recess 60 provided on the front surface of the cassette case of the tape cassette 17. And the supply-side tape reel 61 (hereinafter, referred to as “S reel”) and the winding-side tape reel 61 ′ (hereinafter, referred to as “T reel”) of the tape cassette 17. 2
The reel bases 5 and 5 'are separately engaged with the reel engaging shafts 7, 7, respectively. When a tape loading command is issued from this state, the mode slider 20 is moved to the stop position, the loading arms 58, 58 are extended, and the loading blocks 53, 53 are moved to the loading completed position. At the same time, the rotating lever 44 is moved to the third position.

As a result, the magnetic tape 62 is pulled by the loading posts 55, 55, the pinch rollers 45, and the moving guides 46, the portions of the magnetic tape 62, which had been located along the front surface of the tape drawing recess 60, so that the tape cassette was moved. The magnetic tape 62 drawn out by a predetermined amount from 17 is passed through a tape path shown by a thin two-dot chain line in FIG. That is, the magnetic tape 62 pulled out from the tape cassette 17 is wound around the fixed tape guide 15 and the loading post 55 on the left side in this order after coming out of the S reel 61, and is turned forward when it is wound around the loading post 55. After being wound around the outer peripheral surface of the head drum 14 at a predetermined winding angle and then folded back, and then wound again around the right loading post 55, it is again folded forward and then to the right fixed tape guide.
The tape is wound around the 15 'and the moving guide 46 in this order, and is wound on a T reel 61'.
Therefore, in this state, the magnetic tape 62 is not in contact with the pinch roller 45 and the capstan 18.

This state is the stop mode, in which high-speed running of the tape such as fast-forwarding and rewinding of the tape is performed by rotating the reel base 5 or 5 'in the tape winding direction from this state. That is, when fast-forwarding the tape, the T-side reel base 5 'with which the T-reel 61' is engaged is rotated clockwise at a high speed as viewed from above, whereby the magnetic tape 62 is moved to the S-reel 61 '. The tape is driven at a high speed in a direction in which it is pulled out from the T reel 61 ', and when the tape is rewound, the S reel 61 is engaged.
The side reel base 5 is rotated at a high speed in a counterclockwise direction as viewed from above, whereby the magnetic tape 62 is pulled out of the T reel 61 'and travels at a high speed in a direction of being wound on the S reel 61. .

Further, when an instruction to perform recording or reproduction is issued,
The mode slider 20 is moved to the play position, so that the loading blocks 53, 53
At the same time, the rotating lever 44 is moved to the second position, the pinch roller 45 is pressed against the capstan 18 with the magnetic tape 62 interposed therebetween, and the moving guide 46 is moved slightly backward from the previous position. Moved to capstan 18 and T-reel 61 '
Regulate the tape path between and. And the magnetic tape 62
Is driven at a constant speed by a rotating capstan 18 and a pinch roller 45 pressed against the rotating capstan 18, and the magnetic tape 62 thus moved is a T reel 61 ′ or an S reel 61.
The rotating magnetic heads 14c, 14c scan the recording surface of the magnetic tape 62, thereby
Is recorded or the recorded signal is reproduced.

When a command to form the stop mode from the play mode is issued, the mode slider 20 is moved to the stop position, whereby the pressure lever 36 is returned to the standby position, and the rotating lever 44 is pinched until then. The roller 45 rotates counterclockwise and returns to the third position due to a reaction force or the like that the roller 45 has been pressed against the capstan 18. Then, when a command for forming the initial mode from the stop mode is issued, the mode slider 20 is moved to the initial position, whereby the rotating lever 44 is returned to the first position and the loading gears 58, 58 are folded. Then, the loading blocks 53, 53 are returned to the standby position, and at this time, the magnetic tape 62 that has been pulled out of the tape cassette 17 until now is in the S position.
It is wound on a reel 61.

(G. Effects of the Invention) As is clear from the above description, the tape player of the present invention regulates the pinch roller pressed against the capstan in the play mode in which recording or reproduction is performed, and the tape path in the above mode. The first position in the initial mode and the second position in the play mode before supporting the movement guide and performing the tape loading, and these two positions.
One rotating lever having a pressed portion and being moved between a third position between the three positions, that is, the position in the stop mode, and being moved to a predetermined position movably supported in a linear direction. And a slider provided with a control cam having a holding portion extending in a direction parallel to the moving direction and a holding portion extending in a direction crossing the holding portion, and a crimp supported movably on the slider. A lever and a pressure spring for urging the pressure lever to move the pressure lever, and in the initial mode, the movement of the pressed portion is prevented by the pressing portion of the control cam, so that the rotating lever is held at the first position. And
When the slider moves and the pressed portion of the rotating lever is pressed by the pressing portion of the control cam of the slider and rides on the holding portion, the rotating lever rotates to the third position and moves to the third position. It is held, the slider is further moved, and the pressing lever presses the pressed portion of the rotating lever to rotate the rotating lever to the second position, from which the slider is further moved, and the pressing lever is moved by the pressing spring. Characterized in that the pinch roller is pressed against the capstan by moving against the resilience of the pinch roller.

Therefore, according to the tape player of the present invention, the switching of the positions of the pinch roller and the moving guide and the holding at the positions are each performed by a single rotating lever, a pressure lever, a pressure spring, and a slider which is necessary for this type of tape player. Can be performed by using only the conventional method for switching and holding the positions of the pinch rollers and the moving guide in the tape player. And the position of the rotating lever is regulated with the same high precision as the precision of the position regulation performed on the slider itself. And the position of the moving guide can be controlled.

In the above-described embodiment, the control cam is formed integrally with the slider. However, this arrangement eliminates the need for a special part as the control cam, thereby further reducing the number of parts. can do.

Further, in the above-described embodiment, the pressure bonding lever is of a rotary type. However, in some cases, the pressure bonding lever may be of a type that can be moved in a linear direction. It may be of a shape or a leaf shape, and may be formed integrally with the pressure lever.

In the above embodiment, the present invention is applied to the R-DAT, but the present invention can be applied to various tape players having a moving guide without being limited to such an application example. Further, the specific shapes or structures of the rotating lever, the pressure lever, the control cam, and the like shown in the drawings are merely examples of the embodiment of the present invention, and the present invention is not limited thereto. It is needless to say that the technical scope of the present invention is not to be interpreted in a limited manner.

[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, and FIG. 1 shows the movement of a rotating lever to a predetermined position accompanying the movement of a mode slider and the holding at that position. (A) to (D) are enlarged plan views of main parts over time, FIG. 2 is a plan view showing the entirety in the initial mode, FIG. 3 is a plan view showing the entirety in the play mode, and FIG. 5, FIG. 5 is an enlarged exploded perspective view showing a mode slider, a rotation lever, a pressure lever, and the like. FIG. 6 is an enlarged sectional view of a main part taken along line VI-VI in FIG.
The figure is an enlarged plan view showing a portion below the mechanical chassis. DESCRIPTION OF SYMBOLS 1 ... Tape player, 18 ... Capstan, 20 ... Slider, 33 ... Holding part, 34 ... Pressing part, 35 ... Control cam, 36 ... Crimping lever, 43 ... Crimping spring, 44 ... Rotating lever, 45 ... Pinch roller, 46 ... Movement guide, 50 ... Pressed part

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) G11B 15/29

Claims (1)

(57) [Claims] 1. A first mode in an initial mode before a tape loading is performed, wherein the first mode supports a pinch roller which is pressed against a capstan in a play mode in which recording or reproduction is performed, and a movement guide which regulates a tape path in the mode. And the second position in the play mode and these two
One rotating lever having a pressed portion and being moved between a third position between the two positions, that is, the position in the stop mode, and being moved to a predetermined position while being movably supported in a linear direction. A slider provided with a control cam having a holding portion extending in a direction parallel to the moving direction thereof and a pressing portion extending in a direction intersecting with the holding portion, and a crimp movably supported by the slider A lever and a pressure spring for biasing the pressure lever to move the rotation lever. In the initial mode, the movement of the pressed portion is prevented by the pressing portion of the control cam, so that the rotating lever is held at the first position. When the slider moves, the pressed portion of the rotating lever is pressed by the pressing portion of the control cam of the slider and rides on the holding portion, the rotating lever is rotated to the third position, and the third lever is rotated. Rank The slider is further moved, and the pressing lever presses the pressed portion of the rotating lever to rotate the rotating lever to the second position, from which the slider is further moved and the pressing lever is moved. A tape player characterized in that the pinch roller is pressed against the capstan by moving against the elastic force of the pressure spring.