JP2863355B2 - Tape running device of tape recorder - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [0001] The present invention relates to a novelTape recorder
It relates to a tape running device. For details, for example,
Predetermined operation is performed by running a tape such as a coder.
Add back tension to the running and running tape
Need toTape recorderTape transport device
To add back tension to the tape
Improvement of tape tension can change tape tension.
To the tape reel without being affected by movement
Of a constant strength regardless of the change in the amount of tape
Tension and the number of parts
A new, small and space-savingTape recorderTe
It is intended to provide a loop traveling device. [0002] 2. Description of the Related Art For example, in a tape recorder,
Constant tape speed when recording or playback is done without
Must be run at a constant tape running speed
It is one condition that the tape tension is kept constant.
Matter. [0003] Then, the tape tension is kept constant.
There are several ways to do this.
Of the tape at a position before the magnetic head
To the tape with moderate strength
Giving back tension is done. FIG. 5 is provided in a video tape recorder or the like.
Shows an example a of the conventional back tension mechanism
It is. [0005] In the figure, b is a tape reel on the supply side.
(Hereinafter referred to as "S reel").
Supply-side reel stand (hereinafter, referred to as “S-side reel stand”),
d is a take-up side tape reel (hereinafter referred to as “T reel”).
U. ) The take-up reel stand that rotates integrally with e (hereinafter, referred to as e)
It is called "T side reel stand". ) And tape f is S
Table protruding from the chassis g after being pulled out from the
Guide posts h and i and other tape gears not shown
Wrap around id post, head drum, capstan, etc.
The predetermined traveling that is taken up and wound on the T reel e
Caps when recorded or played back through the path
Between the tongue and pinch roller in the forward direction
Be run. [0006] j is a rotatable base end of the chassis g
It is supported, and a tenregi pin k is erected from the rotation end.
And at the same time counterclockwise by the tension spring 1
Arm is energized to rotate, m is one end of the arm
Part is fixed to the chassis g and the other end is the ten leg arm
j is connected to a position closer to the rotation end than the rotation fulcrum of j.
The brake wound around the brake drum n of the S-side reel base b
This is a rake band, and when recording or playback is performed,
The pin n is the tape guide post h of the tape f.
It is elastically contacted from the side with the part between i. Then, the rotation of the capstan is uneven, or
Is between the tape guide post or head drum and the tape f
When a so-called disturbance such as a change in friction load of the
Of the tape f
The part located between strikes h and i moves in the thickness direction
And the ten leg pin k is moved following the movement.
As a result, the swing arm j is swung to break
The tightening force of Kiband m on brake drum n is adjusted.
Will be. As a result, the rotation of the S-side reel base b
The load on the S reel c is adjusted.
Back tension is controlled by adjusting the restraint force
Will be done. That is, the tape tension increases
The tape tension is low
Control to reduce the tape tension
Sometimes, the restraining force is strengthened and the tape tension is high.
Is controlled so that [0008] SUMMARY OF THE INVENTION
According to the tension mechanism a, the variation of the tape tension is backed up.
Back while feeding back to tension control means
The advantage is that you can control the tension
However, if the brake drum n is provided on the reel
Brake band m and brake band m fixed to chassis g
Fixing parts, etc. are required for
Standing man-hours and various adjustment man-hours increase.
Requires considerable space to place components
MeTape recorderIt is said that the tape running device will become larger
There's a problem. Then, the mass of the leg arm j and the tension
Depending on the spring constant of the pulling l,
Is oscillated in resonance with the fluctuation of the tape tension.
And the amount of tape wound on the S reel c.
As the vehicle becomes less, S by the brake band m
The rotation suppressing force with respect to the side reel base d gradually increases
Giving tape f an unnecessarily strong back tension
There is a problem that you will be able to live. [0010] SUMMARY OF THE INVENTION Accordingly, the present invention providesTapele
CodaTape running device solves the above problems
For the chassisUpTe
Pull the tape from the tape cassette out of the tape cassette
A tape withdrawing mechanism having a pair of tape withdrawing members;
Pulled out of the tape cassette by the tape pull-out member
Multiple tape guide posts to guide the tape
Pulled from the tape cassette by a pair of tape pull-out members
A tape running means for running the ejected tape, and a base end side
Is rotatably supported by the chassis and,Rotating end side
Supply tape reel out of multiple tape guide posts
Between the tape guide post and the tape guide post
Pulled out of the tape cassette by the loop pull-out mechanism
Hold the tapeA friction member is provided,Tape pull-out mechanism
One tape pull-out member of the pair of tape pull-out members
Position of the friction member close to the supply-side tape reel
Is held away from the tape guide post
ToA pivot arm,Close to the supply tape reel
The friction member against the tape guide post to be placed
So that the rotating armAn urging member for urging;One of the above
When the pull-out member moves, the holding is released
Rotated by the urging force of the urging memberThe above rotating arm
Engage with the rotating armThe above friction member is separated from the above
Position and the friction member are close to the supply-side tape reel
The tape with the tape guide post located
Restrict the position to the standby position between the pinching positionControl member
And the tape of the tape cassette
In the state before being pulled out by the truss, the rotating arm
IsBy one tape pullout member of the above tape pullout mechanism
The tape is held at the separated position and
Tape cassette by a pair of tape pull-out members of the pull-out mechanism
When the tape is pulled out from the
The holding by the material is released and the urging member rotates
The arm is moved to the standby position and is controlled by the regulating member.
Position is regulated by the
Release the position regulation of the rotating arm.
The above rotating armThe rotating arm is moved by the urging member.
The friction member and the tape guide post
Between the tape cassette and the tape
The tape pulled out is pinched and the tape is
Is added. [0011] Therefore, the present inventionTape recorderTape running equipment
According to the arrangement, the rotating arm provided with the friction member is a tape.
In conjunction with the movement of the pull-out member, and
The positional relationship between the rubbing member and the tape guide post is specified.
The running tape comes into sliding contact with the friction member.
Load due to friction caused by friction
This ensures that the back tension is always moderately strong.
And the load on the running is
Fluctuations in tension and tape winding on the tape reel on the supply side
It is maintained at a constant strength regardless of changes in
The strength of the back tension applied to the
And can add back tension
As means for this, a rotating arm having a friction member and this
Position regulating member and friction for regulating the position of the rotating arm
A biasing hand to make the member elastically contact the tape guide post
Since only steps are required, the number of parts is small, and
Structure can be achieved. [0012] DETAILED DESCRIPTION OF THE INVENTIONTape recorderTape running
The details of the apparatus will be described according to the illustrated embodiment. It should be noted that the illustrated embodiment applies the present invention to a digital
Audio tape recorder (hereinafter referred to as "DAT")
U. ). 1 is a DAT (only the mechanical deck is shown in the drawing)
It is. ). 2 is a front-rear direction (a lower side in FIG. 1 is a front side,
The upper side is the rear side, and the left side in the figure is the left side and the right side.
To the right. Furthermore, the paper side is the upper side and the paper back side is the lower side.
You. In the following, the direction is also based on this direction. Long to
A mechanical chassis with a substantially rectangular shape, near the front edge
Is formed with a reel base arrangement hole 3 long in the left-right direction.
At the same time, a substantially inverted C is formed between the reel base arrangement hole 3 and the rear end edge.
Guide holes 4, 4 'are formed so as to form a letter.
And the front end is located above the rear end of the guide holes 4 and 4 '.
Catchers 5 and 5 'located facing from one side are fixed
Have been. Reference numerals 6 and 6 'denote the upper surface of the mechanical chassis 2 or the
Projecting upward from the support piece 7 fixed to the chassis
This is the cassette positioning pin that has been set. Reference numeral 8 denotes a support disposed below the mechanical chassis 2.
It is a bush chassis, and if you make a substantially rectangular shape that is long in the left-right direction
In both cases, a predetermined distance from the substantially front half of the mechanical chassis 2
And fixed to the mechanical chassis 2 while facing almost parallel
Have been. Reference numeral 9 denotes a supply-side reel base (hereinafter referred to as "S-side reel").
"Le stand." ), 10 is a take-up side reel stand (hereinafter, referred to as
It is called "T side reel stand". ), And these reel bases 9
And 10 are mounted on the brake slider or brake arm.
The brake shoes 11, 11 ′ which have been shaken (shown only in FIG. 1)
It is. (1) Brake drum 1 contacting freely
2, 12 'and idler gear (not shown) for driving the reel base
Are engaged with the gear portions 13 and 13 'so as to be disengageable, which will be described later.
Reel engagement with which the tape reel of the tape cassette is engaged
Combined so that shafts 14, 14 'etc. rotate integrally
Consisting of These reel bases 9 and 10
At predetermined intervals in the direction, and the upper part thereof is the reel.
Projected upward from the mechanical chassis 2 through the table arrangement hole 3
In the state, the reel stand supporting shaft erected from the sub-chassis 8
15, 15 'rotatably supported. A play mode in which recording or reproduction is performed
In fast-forward mode where fast-forwarding of tapes and tapes is performed
The idler gear (not shown) is the gear part of the T-side reel base 10.
13 ′ and the reel base 10 is in the tape winding direction,
That is, the tape is rotated clockwise in FIG.
In the rewind mode where rewind is performed, the idler gear
The gear unit 13 of the S-side reel base 9 is meshed with the
Is the tape winding direction, that is, the counterclockwise direction in FIG.
Rotated to Reference numeral 16 denotes the above-mentioned gas on the upper surface of the mechanical chassis 2.
Headed located between the rear ends of the guide holes 4, 4 '
And a rotating portion 16a on the outer peripheral surface of the head drum.
Magnetic recording and reproducing heads
, 17, 17,... (Only one is shown in the drawing)
You. ) Is attached. Reference numerals 18 and 18 'denote tape loading blocks.
These tape loading blocks 18, 1
8 'is a moving base moved along the guide holes 4, 4'
19, 19 'and the movable bases 19, 19'.
Tape loading post 20, 20 'and inclined guide
Loading motor 2 comprising posts 21 and 21 '.
2 rotated by 2 (only shown in FIG. 1)
No loading ring causes the non-
The loading position and the catch indicated by a two-dot chain line in FIG.
Between the loading completion position crimped to the
Is to be moved. Reference numeral 23 denotes a tape cassette (shown only in FIG. 1).
is there. ). Reference numeral 24 denotes a relatively thin rectangular box-shaped cassette.
And a magnetic tape in the cassette case 24.
25 is fixed at both ends and wound on a supply side by a predetermined amount.
Reel (hereinafter, referred to as "S reel") 26 and winding
Take-up tape reel (hereinafter, referred to as “T reel”) 2
7 is rotatably housed, and a part of the magnetic tape 25
Are tapes formed at both ends of the front surface of the cassette case 24.
Drawn out of the cassette case 24 from the outlets 28 and 28 '.
The derived part is tape loaded.
In the state before the connection, as shown by the thick two-dot chain line in FIG.
And two tape outlets on the front of the cassette case 24
Tape pull-out recess 29 formed between 28 and 28 '
Has been passed through the front. Then, the tape cassette 23 becomes DAT1.
When installed, the cassette case 24 is attached to the mechanical chassis 2.
The cassette positioning pins 6, 6 'provided and shown
It is placed on the cassette loading part that does not perform positioning.
At the same time, tape reels 26 and 27
The reel engaging shafts 14, 14 'are engaged, whereby
The S-reel 26 and the S-side reel base 9 are connected to the T-reel 2
7 and the T-side reel base 10 rotate integrally with each other
State. Reference numeral 30 denotes a view located below the mechanical chassis 2.
In a capstan erected from a flywheel not shown
Yes, rightward from the head drum 16 of the mechanical chassis 2
Are arranged to protrude from a position spaced forward.
You. Reference numeral 31 denotes a substantially l-shaped pinch roller arm.
And the right end is rotatably supported by the mechanical chassis 2.
And a support shaft 32 erected from the rotation end.
The punch roller 33 is rotatably supported, and is not shown.
1 by non-loading means
To be moved between the play position and the play position shown in FIG.
Has become. Numeral 34 denotes a magnet running in the play mode.
Back tape for applying back tension to tape 25
Means 34 for applying mechanical chassis 2
The pivot arm is rotatably supported on the pivot arm.
A tension spring for rotating the power and a rotating arm
It consists of a fixed friction member and the like. Reference numeral 35 denotes a rotating arm, and the rotating arm 3
Reference numeral 5 denotes an elongated plate shape, and a spring hook 3
6 is formed at a position slightly closer to the tip from the spring hook 36.
A support hole 37 is formed, and the support hole 37 is formed at one side edge thereof.
A portion 38 close to the holding hole 37 is a position
It is a regulated edge to control. The reference numeral 39 designates the above-mentioned hole on the upper surface of the mechanical chassis 2.
This is a support shaft erected from the left side of the
The support shaft 39 is inserted through the support hole 37 of the moving arm 35.
Is rotatably supported by the mechanical chassis 2
ing. Reference numeral 40 denotes a spring hook provided on the mechanical chassis 2.
And a spring between the spring hook pin 40 and the pivot arm 35.
A tension spring having a relatively small spring constant between the hook 36
The arm 41 is stretched, so that the rotating arm 35 is
Is always rotated counterclockwise in FIG.
Being energized. Reference numeral 42 denotes a support plate fixed to the rotating arm 35
The mounting piece 42a extending horizontally from the lower end is
Thus, the arm 35 is fixed to the rotating end of the rotating arm 35. Reference numeral 44 denotes a friction member, and the support plate 4
Surface of the support piece 42b extending in the vertical direction of FIG.
45 fixed to the upper end of the base and the support of the base 45
From the contact film 46 attached to the surface of the holding piece 42b side
Become. The base 45 is made of, for example, felt.
Alternatively, the contact film 46 is made of rubber or the like.
Synthetic resin foil with relatively small friction coefficient and good wear resistance
Film. The rotating arm 35 is connected to a tape loading device.
Non-loading position before loading
The left tape loading block 1
8 against the elastic force of the tension spring 41,
At the non-loading position indicated by the solid line
When loading is performed, the elastic force of the tension spring 41
Is moved to the standby position shown by the two-dot chain line in FIG.
In the play mode, the tension spring 41 is fired.
The contact position shown in FIG.
Is moved to the position where it comes into contact with the tape guide post described later.
It is being moved. Reference numeral 47 denotes a mode switching member (not shown).
This is an upright regulation pin that can be used for tape loading.
When the rotating arm 35 is moved, the regulated edge 38
By contacting the pin 47 from the right side,
When the play mode is set, the restriction pin 4 is held.
7 is moved to the left to rotate to the contact position.
Be moved. Reference numeral 48 denotes a tape guide post, which is a mechanical guide.
And the upper and lower flanges 49, 4
9 are formed. Further, 50, 51 and 52 are tape tapes.
Tape guide post having substantially the same structure as the id post 48
It is. The tape guide post 48 has a DAT
Tape outlet on the left side of the tape cassette 23 mounted on 1
28, the tape guide post 50
At the loading completion position with the above tape guide post 48
Arranged between the left tape loading block 18
The tape guide post 51 is
Tape loading block on the right
Between tape 18 'and capstan 30 and tape
The guide post 52 is connected to the tape cassette attached to the DAT1.
Located just behind the tape exit 28 'on the right side of
ing. Numeral 53 is movably supported by the mechanical chassis 2.
Tape guide, tape loading
Before loading, come to the non-loading position shown by the solid line in FIG.
When tape loading is performed, the two-dot chain line
It is moved to the loading completion position shown. Therefore, DAT1 configured as described above is used.
Loading, recording and playback, tape unloading
Operations such as loading are performed, for example, as follows.
You. The tape cassette 23 is mounted on the DAT1.
The pinch roller at the non-loading position
33, a friction member 44 supported by the rotating arm 35,
Dashi guide 53, tape loading block 18, 1
8 'tape loading post 20, 20' and tilt
Guide posts 21 and 21 'are formed in cassette case 24
Magnetically inserted into the tape withdrawal recess 29
Out of the cassette case 24 of the air tape 25
Facing from inside. Then, a command for performing tape loading is performed.
Is performed, the tape loading blocks 18, 18
'And the bending guide 53 are at the loading completion position.
And the pinch roller 33 is moved to the play position.
, A standby position slightly before reaching the position indicated by a two-dot chain line in FIG.
Position, and the pivot arm 35 is pulled
The above-mentioned waiting is performed by the tensile force of the ring 41 and the regulating pin 47.
Is moved to the aircraft position. As a result, the magnetic tape 25 is
A predetermined amount is withdrawn from the case 24 and the
The tapered posts 48, 50 and the left tape
Proding post 20, inclined guide post 21, f
Drum 16, right inclined guide post 21 ',
Proding post 20 ', tape guide post 5
1, capstan 30, feeder guide 53, tape
Wound around the post 52 in this order and
The path shown by the two-dot chain line is passed. Thus, the tape loading is completed.
You. The fast forward and rewind of the magnetic tape 25 are
, Ie, the pinch roller 33 and the rotating arm 35
The provided friction member 44 is in contact with the magnetic tape 25.
It is performed in the state without. Further, the tape loading is performed in this manner.
Is performed, the brake shoes 11, 11 'described above are used.
The left one 11 is a brake drive of the S side reel base 9.
Away from the system 12 and the right side brake
Braking by the shoe 11 ', and
Since the rotation of the T reel 27 is prevented, the magnetic tape
25 is drawn out from the S reel 26. Then, an instruction to perform recording or reproduction is issued.
When the capstan 30 is rotated counterclockwise in FIG.
At a constant speed, and the brake shoe 1
Release of braking on reel bases 9, 10 by 1, 11 '
And the T-side reel base 10 rotates in the tape winding direction.
Is done. At the same time, the pinch roller 33 is placed in the play position.
To the capstan with the magnetic tape 25 in between.
30 so that the magnetic tape 25 runs.
The head drum 16 is further rotated. In this manner, the magnetic tape 2 running
5 by the magnetic head 17 of the head drum 16
Recording or reproduction is performed. Then, a command to perform recording or reproduction is issued.
When the restriction pin 47 is moved to the left,
The rotation arm 35 is pulled by the tension of the tension spring 41.
From the standby position further counterclockwise.
Therefore, the friction member 44 is
It is elastically contacted with the id post 48. Therefore, the magnetic tape 25 is a cassette case.
A portion of the portion drawn from 24 that is close to the S reel 26
Between the friction member 44 and the tape guide post 48.
It will be run in this state,Magnetic tape
25Due to friction loss generated between the friction member 44
Will be given a load,
Tension will be added. It should be noted that when the magnetic tape 25 runs,
The diameter of the tape wound on the S reel 26 gradually decreases.
The load on the rotation of the S-side reel base 9
The rate of action on the tape pull output gradually increases
And therefore between the S-reel 26 and the friction member 44
Tape tension gradually increases, but friction members
The tension of the part beyond 44 is in contact with the friction member 44
Coefficient of friction of film 46 and tape of friction member 44
The pressing force against the guide post 48, that is, the rotating arm 3
5 due to the turning radius of 5 and the tensile force of the tension spring 41.
And it is kept substantially constant by the above-mentioned operation. In the running magnetic tape 25,
The bag between the friction member 44 and the capstan 30
The tension is always maintained at a substantially constant strength.
Become. Then, tape unloading is performed.
When a command is issued, the S-side lead
Of the S-side reel base is released.
9 is driven in the tape winding direction, and the tape
Wing blocks 18, 18 ', fly guide 53,
The non-loading roller 33 and the rotating arm 35 are
Returned to the ringing position. As a result, the cassette case 24 is pulled out.
The ejected magnetic tape 25 is rewound on the S reel 26.
Will be done. [0056] As apparent from the above description,
The present inventionTape recorderTape running device, shear
ShiUpOf the loaded tape cassette
A pair of tape pulls to pull the tape out of the tape cassette
A tape pull-out mechanism having a pull-out member and a pair of tape pull-out portions
The tape pulled out of the tape cassette by the material
Guide posts and a pair of tape pulls
Tape pulled out from the tape cassette by the ejection member
Tape running means for running the
While being movably supported,Rotating end sideMultiple tapes
Guide post near the supply tape reel
With the tape pull-out mechanism between the tape guide post located
Therefore, the tape pulled out from the tape cassette is pinched.
ToA friction member is provided,A pair of tapes for the tape pull-out mechanism
Friction member by one of the pull-out members
Is located near the tape reel on the supply side.
It is held at a position away from the id postRotating arm
When,Tape located close to the supply tape reel
Rotate so that the friction member elastically contacts the guide post.
TheAn urging member for urging;One of the tape pull-out members
The holding is released by the movement of the
Turned by the urging force ofEngage with the rotating arm
Rotating armThe above friction member is separated from the above position and the above
The friction member is located near the tape reel on the supply side.
To hold the tape with the tape guide post
Position to the standby position betweenWith a regulating member,
The tape of the tape cassette is pulled by the tape
In the state before being ejected, the rotating armAbove tape
Separated by the one tape pull-out member of the pull-out mechanism
Position and a pair of tape pull-out mechanisms
Tape from the tape cassette
When pulled out, holding by the one tape pull-out member
Is released and the rotating arm is moved by the urging member.
It is moved to the standby position and the position is
During recording or playback, the regulating member is moved to
By releasing the position regulation of the moving arm,
IsThe rotating arm is rotated by the urging member.
Between the friction member and the tape guide post.
Pulled out of the tape cassette by the tape pull-out mechanism
Tape is clamped and back tension is added to the tape.
It is characterized by being able to. Therefore, according to the present invention,Friction member provided
The rotating arm is linked to the movement of the tape
Friction member and tape guide post
The positional relationship between is defined,The running tape is the friction part
Due to friction loss caused by sliding contact with the material.
The load on the vehicle
Adding moderate back tension to the tape
it can. The load on the running is tape tape.
Variation of the tape and the diameter of the tape wound on the tape reel on the supply side
Tape is maintained at a constant strength regardless of the change in
The back tension applied to the body is always maintained at a certain level
can do. Moreover, it is necessary to add back tension.
Means include a rotating arm having a friction member and this rotating arm.
The position regulating member and the friction member for regulating the position of the
Only biasing means to make the tape guide post elastically contact
Requires less parts and takes up less space
It can be structured.In addition, a friction member was provided.
The pivot arm pulls the tape out of the tape cassette
Before the tape is pulled out, the pair of pull-out members of the tape pull-out mechanism
The friction member is closer to the supply tape reel
Position away from the tape guide post
And the tape is pulled out by the tape pull-out mechanism.
When it is pulled out, it is
The holding is released and rotated by the urging force of the urging member,
Position and friction member separated by a regulating member that regulates the position
Is located near the tape reel on the supply side.
In the standby position between the id post and the position where the tape is held
A position-regulated part that restricts the position during recording or playback
When the material is moved and the friction member is close to the supply tape reel
Hold the tape with the tape guide post located at the roller
Moved to the position. Therefore, regulations that regulate the position
The rotating arm provided with the friction member is separated by the member.
To the standby position between the
The friction member immediately during recording or playback.
The tape with the tape guide post to the clamping position.
The tape can be back-tensioned during recording or playback.
Can be added. [0060] [0061]stillIn the above embodiment, the friction member is
Attached to the base made of the gel and the tape contact surface of the base
The present invention is constituted by two members of
The structure and material of the friction member in
It is not limited and has good wear resistance and comparative friction coefficient
Very small and less likely to damage the tape
Any structure or material is acceptable
No. In the above embodiment, the present invention
Although the example applied to T is shown, the present invention
Back tension on running tape without being limited to examples
Various types that need to be addedTape recordertape
It can be applied to traveling devices.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows a tape traveling device of a tape recorder according to the present invention.
FIG. 9 is a plan view of the mechanical deck in a state before tape loading is performed, showing an example of an embodiment applied to T. FIG. 2 is a plan view of the mechanical deck in a state where recording or reproduction is performed. FIG. 3 is a front view of a main part. FIG. 4 is a perspective view showing a friction member and a member supporting the friction member. FIG. 5 is a schematic plan view showing an example of a back tension mechanism in a conventional tape traveling device of a tape recorder . DESCRIPTION OF REFERENCE NUMERALS 1 Tape transport device 2 of tape recorder 2 Chassis 18 Tape pull-out member (one of tape pull-out members) 18 'Tape pull-out member 23 Tape cassette 25 Tape 26 Supply side tape reel 30, 33 Tape running means 35 Rotating arm 41 urging member 44 friction member 47 regulating member 48 tape guide post 20, 20 ', 21, 21', 50, 51, 52, 53 (holds tape between friction member)
Tape guide post

Continuation of front page       (56) References JP-A-51-140705 (JP, A)                 JP-A-52-7211 (JP, A)                 JP-A-62-149060 (JP, A)                 JP-A-63-61447 (JP, A)                 Actual opening 58-144644 (JP, U)                 60-132635 (JP, U)                 Shokai Sho 59-78552 (JP, U)

Claims (1)

(57) [Claims] A tape pull-out mechanism having a pair of tape pull-out members movably provided on the chassis and pulling the tape of the loaded tape cassette out of the tape cassette; and guiding the tape pulled out of the tape cassette by the pair of tape pull-out members. A plurality of tape guide posts, tape running means for running the tape pulled out of the tape cassette by the pair of tape pull-out members, and a base end side rotatably supported by the chassis and a rotatable end side . Of the above multiple tape guide posts,
Tape guide located near the supply tape reel
The tape cassette between the post and the post
A friction member for holding the tape drawn out of the cassette, and a pair of tape drawing members of the tape drawing mechanism.
The friction member is provided by the one tape pull-out member.
Tape guide located near the supply tape reel
A rotating arm held at a position separated from the post, and a tape positioned near the supply-side tape reel
Raise the friction member against the guide post
The urging member for urging the rotating arm and the one tape pull-out member are held by moving.
Is released and rotated by the biasing force of the biasing member. The rotating arm is engaged with the rotating arm to move the rotating arm to the friction member.
The above-mentioned separated position and the above-mentioned friction member are the above-mentioned supply side tape.
With a tape guide post located near the reel
Position regulation to the standby position between the position where the tape is held
And a restricting member for, before the tape of the tape cassette is pulled out by the tape pull-out mechanism, the rotating arm is the tape
The tape is pulled out by one of the tape pull-out members of the pull-out mechanism.
In the tape withdrawal mechanism.
Tape from tape cassette by twin tape pull-out members
When the tape is pulled out, the one tape pull-out member
The rotation arm is lifted by the urging member.
It is moved to the standby position and the position is regulated by the regulating member.
The above-mentioned regulating member is moved during recording or reproduction, and
By releasing the position regulation of the rotating arm,
A chromatography arm is back tension is nipped tape pulled out from the tape cassette is the tape by the tape pull-out mechanism between the rotating arm by the biasing member is rotated the friction member and the tape guide post The tape traveling device of the tape recorder, characterized in that a tape drive is added.