JPS5931143B2 - Automatic tape loading device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an automatic tape loading device, and more particularly to an automatic tape loading device that pulls out a tape-like object from a tape storage housing and loads it into a predetermined tape bus. It is an object of the present invention to provide a tape pegging loading device configured to run stably along a tape bus.

Generally, cassette-type VTRs and the like to which an automatic tape loading device is applied do not have a dedicated stabilizer to stabilize the running of the tape attached thereto, and guide the tape to form the desired tape bus. The tape guide rollers, etc. that are used also function to stabilize the tape running. In order to stabilize the tape running, it is desirable to use a tape guide roller with a relatively large diameter. However, the conventional tape guide roller has a drawback that it is difficult to sufficiently stabilize the tape running because of its small diameter. The present invention eliminates the above-mentioned drawbacks, and one embodiment thereof will be described below with reference to the drawings.

FIG. 1 is a plan view showing the state of an embodiment of the automatic tape loading device according to the present invention before the loading operation starts, and FIG. 3 is a plan view showing the state of the device shown in FIG. 1 when the loading operation is completed. It is a diagram. 2 and 4 are right side views showing the motor, pitch roller, etc. in FIGS. 1 and 3, respectively, with the motor and pitch roller omitted. First, the configuration of the device of the present invention will be explained.

The cassette 1 stores therein a supply side tape roll 2 and a take-up side tape roll 3, and each tape roll is placed between a supply side reel disk 5 and a take-up side reel provided on a chassis 4. The inclined guide drum 7 is fitted onto the disk 6.
It is installed in a position close to. The magnetic tape 8 in the force set 1 is guided by tape guides 9 and 10 to form a tape running path along the front side of the force set 1. Further, a substantially trapezoidal window portion 11 and a semicircular arc-shaped opening portion 12 are provided on the front bottom plate side of the force set 1, respectively. Further, the front side of the force set 1 is an opening extending over the entire width of the tenon. When the force set 1 is installed as described above, the opening/closing lid 13 that closes the front opening opens, and the inclined tape guides 14 and 1 open.
5 and an upright tape guide 16 fit relatively into the force set 1 through the window 11 at a position inside the tape loop.

Further, the tape guide 17 installed on the chassis 4 is relatively inserted into the force set 1 through the opening 12 at a position outside the tape loop. Inclined guide drum 7
consists of a lower fixed drum 21 fixed on a drum base 20 provided on the chassis 4, and an upper rotating drum 22 that is rotatably provided with respect to the lower fixed drum 21, and is integrated with the upper rotating drum 22. The rotating surface of the rotating video head 23 is positioned so that it is inclined at a predetermined angle with respect to the horizontal plane at a predetermined height position.

In this case, the guide drum 7 is tilted so that its axis is tilted forward as shown by A-N in FIG. The width dimension is set to approximately match the width dimension of No. 8. The loading base 24 has a generally annular shape and is rotatably fitted to the upper part of the drum base 20 with a gap, and its rotation center 0 is close to the central axis of the inclined tape guide 15. There is. Before loading starts, the loading base 24 is in a counterclockwise rotated position, and the inclined tape guide 14 installed on the protruding portion 24a is used for the force set 1 installed as shown in FIG. It faces the window part 11. Further, the rotating arm 25 is supported on a shaft 26 that is set up on another protrusion 24b of the loading base 24, and the tape guide 16 and pin 27 are set up at the tip of each arm. . At this time, although the rotating arm 25 is biased with clockwise rotational force by the elastic force of the torsion spring 28, the pin 27 is at the middle position S of the cam surface 30 of the cam 29 fixed to the chassis 4. Rotation is restricted at the abutting position. For this reason, the upright tape guide 1
6 is located close to the inclined tape guide 14. For this reason, the dimensions of the window portion 11 of the force set 1 are set to be relatively small. Further, the upright tape guide 16 is located on the trailing side of the inclined tape guide 14 with respect to the rotating direction (clockwise) of the loading base 24 during loading. Here, since the dimension between the shaft 26 and the tape guide 16 in the arm 25 is set to be relatively short, the upright tape guide 16 is installed on the chassis etc. when loading is completed, as will be described later. It is positioned with an accuracy close to that of the fixed member.

Note that the cam surface 30 of the cam 29 is moved from the position S1 to the position S2.
From the position S2 of the circular arc surface 30a with the same radius R, to the position S
A curved surface 30b whose radius gradually decreases from position S3 to position S4, a curved surface 30c whose radius gradually increases from position S3 to position S4, and a circular arc surface 30d with the same radius R2 (ku R1) from position S4 to position S5. The curved surface 30e has a decreasing radius over S6.

The inclined tape guide 15 has a U-shaped bent portion mounted on an inclined bent portion 33 at the tip of a rotating arm 32 which is pivotally supported by a shaft 31 protruding from the chassis 4, and is in an inclined state. .

Although the rotating arm 32 is given a clockwise rotational force by the spring 35 while its axial movement is restricted by the spring 34, the end of the elongated hole 37 of the connecting plate 36 is connected to the eccentric roller arm 38. Rotation is restricted at the rotation position shown in FIG. 1, which is locked by a pin 39 provided in the hole. Therefore, the inclined tape guide 15 is located close to the upright tape guide 16, and the inclined tape guide 15 is located close to the upright tape guide 16.
4 and the upright tape guide 16 are fitted into the window 11 of the force set 1 mounted similarly. Further, the loading base 24 has a gear 40 over a predetermined angular range on its outer peripheral surface.
is engraved, and a drive gear 41 meshes with this gear 40.

The eccentric roller arm 38 has a substantially F-shape, is pivotally supported by the shaft 42 of the reel disk 6 on the take-up side, and is given a rotational force in the counterclockwise direction by the tensile force of the springs 35 and 43. The control lever 44, whose end portion 38a is pivotally supported by the shaft 31, is restricted from rotating at a position where one end of the control lever 44 is locked to the bent portion 44a.

In this state, the eccentric roller 46, which is rotatably held on a shaft 45 mounted on the arm 38, has its minor diameter circumferential surface 46a spaced apart from and opposed to the pulley 48 fixed to the base of the cab stan 47. It is in a rotating position. Further, the head arm 50 is pivotally supported by a shaft 51, and is rotated clockwise by a spring 43 to a position where a pin 52 is locked to a cam portion 38b of the arm 38.

Therefore, the audio control head 53 attached to the bent portion 50a at one end of the head arm 50 is in the retracted position. The pinch roller arm 55, whose base is supported by a shaft 51 and rotatably holds the pinch roller 54 at its tip, is springed until the rear bent portion 55a is locked to the head of the adjustment screw 56. 57, and the pinch roller 54 is spaced apart from the capstan 47. The adjusting screw 56 has an adjusting nut 58 screwed into its threaded portion, and the rear bent portion 50 of the head arm 50
b, and a coil spring 59 is inserted in a compressed state between the screw head and the bent portion 50b. In addition, the eccentric roller arm 38
is rotated counterclockwise, the skid release arm 60 is rotated counterclockwise about the shaft 68 by the spring 61.

This rotational position is between the bent portion 38d of the arm 38 and the arm 60.
It is restricted by a rod 67 that connects the bent portion 60a. The skew arm 62 has its side part attached to the arm 60.
It is locked to the bent portion 60b of the arm 60 and rotates counterclockwise about the shaft 68 against the spring 63, and has one end connected to a part of the arm 62 and the other end fixed on the chassis 4. The supply side reel disk 5 is connected to the bracket 64.
The brake band 65 surrounding the brake band 65 is relaxed. The stabilizer 66 is composed of a rotating roller, and as shown in FIG. 3, has the function of attaching and guiding the magnetic tape 8 loaded in a predetermined tape path to absorb longitudinal vibrations occurring in the tape. It is disposed at a predetermined position inside the set 1, and its diameter is set relatively large.

Next, with reference to FIGS. 5 and 6, the auxiliary guide mechanism 7
The configuration of 0 will be explained.

5 and 6 are side views of the auxiliary guide mechanism 70 as seen from the directions of arrows A and B in FIG. 1, respectively. Rotating lever 71
Each of the bending and rotating levers 72 is supported by a screw 74 and a pin 75 on its shaft by a bracket 73 on the chassis 4, and gear portions 71a and 72a are formed on both the rotating levers 71 and 72, respectively. They mesh with each other.

Further, a spring J and V is stretched between a pin 76 set up on the back side of the bending/rotating lever 71 and the screw 74. In the state before loading starts, the bending rotation lever 71 is rotated clockwise by the action of the spring J and V, so that the lever 76 is connected to the notch 7 formed in the bracket 73.
Rotation is restricted at the position where it is locked to one end surface 78a of the tape support pole 79 erected at the tip of the tape support pole 79.
is in a tilted position and in a raised position. The control lever 80 is pivotally supported on a pin 81, and has branch pieces 82a and 82b at one end.
A forked portion is formed, and a locking portion 83 is formed at the other end to be abutted by the shaft 26 during the loading operation, as will be described later.

Here, the opening angle between the pair of branch pieces 82a and 82b is set appropriately, and the control lever 80
is returned to the same position and positioned by both arms of a return spring 84 attached to the pin 81. Further, in the automatic tape loading device having the above structure, the full width erasing head 85, the stabilizer 66, the audio control head 53, etc. are installed at the same height as the installed force set 1.

Next, the tape loading operation of the above-mentioned apparatus will be explained with reference to FIGS. 3, 4, and 7 to 9. 1st
In the state shown in Figures and Figure 2, press the play operation button (
(not shown) starts the capstan motor 90 and head motor 91.

Due to the operation of the motor 90, the capstan 47 and the pulley 1J4
8 rotates clockwise at a predetermined speed, and a rotational force in the tape winding direction is applied to the winding side reel disk 6. Further, by the operation of the motor 91 installed at an angle, the upper rotating drum 22 is moved to the video head 23 via a pulley 92, a belt 93, and a pulley 94 formed in pairs on the upper surface side of the upper rotating drum 22. rotated at high speed. Further, due to the rotation of the capstan 47, the driving gear 41 is rotated counterclockwise, and the annular loading base 24 meshed with the driving gear 41 starts rotating clockwise.

At this time, the inclined tape guide 14 and the upright tape guide 16 lock the magnetic tape 8 when it comes out of the window 11 of the force set 1 and pull it out from the force set 1, and according to the rotation of the loading base 24. As will be described later, the bow is placed around the inclined guide drum 7. Note that the inclined tape guide 14 is moved along the same locus as the rotational locus of the loading base 24, but the pin 27 of the upright tape guide 16 moves along the cam surface 30 during the loading operation, as will be described later.
The arm 25 is rotated about the shaft 26 while being guided by the loading base 24, so that the arm 25 is moved along a trajectory different from the rotation trajectory of the loading base 24.

That is, at the initial stage of rotation of the loading base 24, that is, when the pin 2
7 is guided by the cam surface 30a between positions S1 and S2, the arm 25 does not rotate about the axis 26, and the upright tape guide 16 approaches and follows the inclined tape guide 14. The loading base 24 moves along the arc t1-T2 whose position is the rotation center 0 of the loading base 24.

When the loading base 24 further rotates and the pin 27 passes through the middle position S2 of the cam surface 30 and is guided to the cam surface 30b, the arm 25 is moved clockwise with respect to the shaft 26 by the elastic force of the torsion spring 28. Rotated.

The rotation of the arm 25 causes the upright tape guide 16 to move clockwise due to the rotation of the loading base 24.
It is rotated clockwise about the shaft 26 and moves along the trajectory T2-T3. At this time, the upright tape guide 16 moves further away from the center 0 of the loading base 24 and overtakes the inclined tape guide 14 to move toward the loading base 24.
4 reaches a position preceding the upwardly inclined tape guide 14 in the rotation direction. The magnetic tape 8 in the force set 1 is pulled out by the rotating inclined tape guide 14 and follows the trajectory T2.
- the full-width erase head 85, as shown in FIG.
A tape loop 8a guided by the upright tape guide 16 and the inclined tape guide 14 is formed.

When the loading base 24 further rotates, the shaft 26 abuts against the locking part 83 of the control lever 80, and the control lever 80
is rotated counterclockwise.

Due to this rotation, the rotation lever 71 is locked to the branch piece 82a and rotated clockwise in FIG.
The bending rotation lever 72 is rotated counterclockwise via 2a. The bending rotation lever 72 rotates by a predetermined angle and the pin 75
When the pin 75 crosses the center position line, the tensile force of the spring J and V causes the pin 75 to rotate sharply counterclockwise, and the pin 75 moves to the notch 78.
It rotates to a position where it abuts the other end surface 78b. By the above-mentioned rotation of the bending rotation lever 72, the tape support pole 79 is lowered to an upright state and enters the tape loop 8a.

When the tape support pole 79 moves to the tape guide position, the pin 27 is guided by the cam surface 30c, and the rotating arm 25 is rotated counterclockwise, so that the upright tape guide 16
moves along the trajectory T3-T4. For this purpose, the tape loop is guided by the tape guides 15 and 16 and relatively enlarged at its tip, and the tape support pole 7
9 reliably enters the tape loop 8a. The loading base 24 further rotates and the control lever 8 is controlled by the shaft 26.
0 is released, the control lever 80 returns to its original position by the action of the return spring 84.

At this time, the auxiliary guide mechanism 70 is in the state shown in FIGS. 8 and 9. When the loading base 24 further rotates, the pin 27 moves to the arcuate cam surface 30d, and then to the cam surface 30d.
You will be guided to 0e. When the pin 27 is guided by the cam surface 30d, the upright tape guide 16 moves along the circular arc trajectory T4-T5, and when the pin 27 is guided by the cam surface 30c, the rotating arm 25 rotates clockwise. The upright tape guide 16 moves away from the inclined tape guide 14 along the trajectory T, -T6. Note that during this time, the upright tape guide 16 moves ahead of the inclined tape guide 14. When the loading base 24 rotates to a position slightly before the position shown in FIG. It is rotated counterclockwise against the spring 96.

Due to the above-mentioned rotation of the control lever 44, the bent portion 44a is moved from the one-arm end portion 38a of the eccentric roller arm 38 to the notch portion 38c.
Move to a position opposite to. At this time, the rotation of the drive gear 41 stops, and the loading base 24
Stop clockwise rotation. Furthermore, when the eccentric roller arm 38 is released from the lock by the bent portion 44a, it rotates counterclockwise due to the tensile force of the springs 35 and 43.
The circumferential surface 46a of the short diameter portion of the eccentric roller 46 comes into pressure contact with the pulley 48 which is rotating clockwise.

Therefore, the eccentric roller 46 is rotated counterclockwise, and the eccentric roller arm 38 is forcibly rotated clockwise in response. When the eccentric roller 46 rotates approximately 1/2 and the long diameter portion 46b passes through the pressure contact position with the pulley 48 and rotates slightly, the eccentric roller arm 38 rotates the locking pawl that rotates the pin 97 to the operating position. 98, and counterclockwise rotation is restricted. Therefore, the pulley 4 of the eccentric roller 46
8 is released, and the capstan 47 thereafter rotates with the load removed. In addition, the locking claw 98
is rotated counterclockwise to the position shown in FIG. 3 simultaneously with the operation of the play operation button (not shown). Due to the rotation of the eccentric roller arm 38, the head arm 50 is rotated counterclockwise with the pin 52 guided by the cam portion 38b, and the audio control head 53 is moved to the force set 1.
is moved to a predetermined position through the front opening of the magnetic tape 8 and attached to the magnetic tape 8. Further, as the head arm 50 rotates, the pinch roller arm 55 rotates counterclockwise, and the pinch roller 54 comes into contact with the capstan 47. At this time, the arm 55 is restricted in rotation and rotates clockwise relative to the head arm 50, and the coil spring 59 is compressed. The pinch roller 54 is pressed against the capstan 47 by the elastic force of the coil spring 59 at this time, and the magnetic tape 8 is pinched and driven in the forward direction. Furthermore, the rotation of the eccentric roller arm 38 causes the rotation arm 32 to rotate clockwise via the connection plate 36.

Although the recess 32a of the rotary arm 32 is locked by the tape guide 17 and its rotation is restricted, it is still given a clockwise rotational force by the tensile force of the spring 35 having a large spring constant. , the inclined tape guide 15 is positively positioned between the inclined guide drum 7 and the tape guide 17 as shown in FIG. Furthermore, due to the rotation of the arm 38, the ski release arm 6 is released via the rod 67.
0 is rotated clockwise against the spring 61. Therefore, the skew arm 62 is released from the lock by the bending portion 60b and rotates clockwise by the spring 63.
Tension pole 99 installed at the tip of arm 62
The brake band 65 comes into contact with the magnetic tape 8 pulled out from the force set 1, and the brake band 65 is tensed, so that the tension servo mechanism is activated. In addition, head arm 50
Due to the above rotation, the leaf spring 10 attached to one end of this
The bent portion 0 fits into the teeth of the gear 40 of the loading base 24 whose rotation by the drive gear 41 is stopped.

For this reason, the loading base 24 is attached to the head arm 50.
By the final rotation of the gear 40, one tooth of the gear 40 is locked by the leaf spring 100, and the pin 95 is forcibly rotated further clockwise, and the pin 95 is attached to a predetermined position on the chassis 4 as shown in FIG. Rotation is restricted while engaged with the stopper 101. Therefore, the loading base 24 is reliably and positively positioned at the final rotational position determined by the stopper 101 while the loading base 24 is biased with clockwise rotational force by the action of the leaf spring 100. When the loading base 24 reaches the final rotational position, the inclined tape guide 14 is connected to the inclined guide drum 7 and the stabilizer 6 as shown in FIG.
6, the upright tape guide 16 guides the pin 27 at the middle position S6 of the cam surface 30e, and reaches the opposite side of the inclined guide drum 7 from the stabilizer 66 as shown in the figure.

Thus, the adhesion angle α of the magnetic tape 8 to the stabilizer 66 is determined by both tape guides 14 and 16. Here, since the loading base 24 is actively held at its final rotational position and the rotational arm 25 has a relatively short arm length, the inclined tape guide 1
4 and the upright tape guide 16 are positioned with high accuracy like the fixing member previously fixed at a predetermined position when the loading operation is completed, and guide the magnetic tape 8 without causing vibration during tape running. When the loading base 24 is rotated to the final position, the device
4 and 4, the auxiliary guide mechanism 70 is in the state shown in FIGS. 8 and 9, and the magnetic tape 8 is loaded onto a predetermined tape path and is driven to be held between the pinch roller 54 and the capstan 47 at a predetermined speed. Start running.

That is, the magnetic tape 8 is pulled out from the supply tape roll 2 into the recassette 1, attached to the full-width erasing head 85, where erasing is performed over the entire width of the tape during recording, and attached to the tension pole 99. The tape tension is kept constant, and the tape is guided to the tape support pole 79 of the auxiliary guide mechanism 70.

Thereafter, the magnetic tape 8 is guided by the upright tape guide 16 and its direction is approximately reversed, and the upright tape guide 16
and the predetermined angle (b) determined by the inclined tape guide 14.
The vehicle travels while being attached to a relatively large-diameter stabilizer 66 disposed at a predetermined position and rotated counterclockwise. Here, vibrations occurring in the magnetic tape 8 in the longitudinal direction of the tape are absorbed. Further, the magnetic tape 8 is stably and accurately positioned using inclined tape guides 14 and 15.
The recording head 23 is guided by the slanted guide drum 7, and its attachment angle to the inclined guide drum 7 is regulated, and the recording head 23 runs along the circumferential surface of the guide drum 7 in a spiral manner, and a video signal is recorded and reproduced by the video head 23. Here, since the inclined guide drum 7 is positioned with its center axis inclined with respect to the chassis 4 as described above, the magnetic tape 8 is placed along the tape path parallel to the chassis 4 on the circumferential surface of the guide drum. to run attached. Incidentally, the distortion caused by the inclination in the tape width direction, etc., which occurs in the magnetic tape 8 in the portion that runs in contact with the guide drum 7 over approximately 180 degrees, is caused by the inclined tape guides 14 and 15 which are inclined at a predetermined angle in a predetermined direction. Corrected by

Further, the tape winding angle β of the magnetic tape 8 with respect to the inclined tape guide 14 located on the entrance side of the guide drum 7 is accurately set by the guide drum 7 and the stabilizer 66. Therefore, vibrations of the magnetic tape 8 in the tape longitudinal direction are immediately absorbed by the large-diameter stabilizer 66, and distortion in the tape width direction is corrected by setting the adhesion angle β to a predetermined value. , runs stably around the guide drum 7. Further, the magnetic tape 8 is guided by the inclined tape guide 15, enters the force set 1 again, is guided by the tape guide 17, is attached to the audio control head 53, and is driven and pinched by the pinch roller 54 and the capstan 47. Ru.

The magnetic tape 8 fed out at a predetermined speed from the nipping drive unit is guided by the tape guide 10, and then sequentially wound around the winding-side tape winding body 3, which is given a rotational force in the tape winding direction. . Note that the tape path between being pulled out from the supply side tape roll 2 and extending over the inclined guide drum 7, that is, the full width erasing head 85, the tension pole 99, the tape support pole 79, the upright tape guide 16, and the stabilizer 66
The height and lateral distortion of the magnetic tape 8 in the tape path attached to the magnetic tape 8 are corrected by the inclined tape guide 14.

In addition, the tape passes through the inclined guide drum 7 and reaches the tape winding body 3 on the winding side, that is, it is attached to the tape guide 17 and the audio control head 53, and is held and driven by the capstan 47 and the pinch roller 54. The height and lateral distortion of the magnetic tape 8 in the tape path are corrected by another inclined tape guide 15. Here, the inclination direction of the inclination tape guide 15 and the rotation center (shaft 31) of the rotation arm 32 on which it is mounted are defined as the rotation center being the inclination direction line of the tape guide 15 (B in FIG. 3). -W line)
The relationship is set to be placed above.

Therefore, the bending angle of the inclined bent portion 33 on which the inclined tape guide 15 is established can be set with high precision with respect to the rotary arm 32 by a relatively easy one-step bending process. The inclination direction and angle of the inclination tape guide 15 erected at 33 can be determined with high precision. Incidentally, the inclined tape guard 14 is arranged in the direction of inclination (C-C in Fig. 3).
line) is slightly deviated from the rotation center 0 of the loading base 24, but by appropriately changing the installation position of the loading base 24, the direction of inclination can be made to pass through the rotation center 0 of the loading base 24. You can also set it like this. In this case, the inclination direction and inclination angle of the inclined tape guide 14 can also be determined with higher precision. Also,
When loading is completed, the magnetic tape 8 pulled out from the force set 1 is placed in the same plane as the force set 1, including the attachment part to the guide drum 7, as shown in FIG. 4, that is, in the same plane parallel to the chassis 4. formed within.

Furthermore, during the loading operation in the above device, the upright tape guide 16 is guided by the cam surface 30 of the cam 29 and follows a trajectory t1 shown by a thick broken line in FIG. 3, which is different from the arcuate trajectory as the loading base 24 rotates. -T2...T5-T
Move along 6.

Therefore, in the automatic tape loading device, the positions of the head 85, auxiliary guide mechanism 70, stabilizer 66, etc. provided outside the force set can be set relatively freely, and the tape path is stably formed when loading is completed. Ru. Furthermore, during the loading operation due to the rotation of the loading base 24, the magnetic tape 8 is
is engaged with the inclined tape guide 14 and pulled out of the force set 1.

However, shortly after the loading operation begins, the upright tape guide 16, which had been trailing the inclined tape guide 14, overtakes the inclined tape guide 14 and reaches a position in which it is in front of it. Therefore, the air-breaking tape 8 is held uniformly over its entire width by the upright tape guide 16, and is stably pulled out from the force set without causing unevenness in the tension that opens in the width direction. Pass loaded. In the recording or reproducing mode shown in FIGS. 3 and 4, when a stop button (not shown) is pressed, the device starts an unloading operation. When a stop button (not shown) is operated, the locking pawl 98 is moved to the position shown in FIG.
The long diameter portion 46b is pressed against the pulley 48 which is rotating clockwise. Therefore, the eccentric roller 46 is rotated counterclockwise, and in response, the eccentric roller arm 38 and the counterclockwise head arm 50 are rotated clockwise together with the pinch roller arm 55 to the position shown in FIG. arm 38
Due to the above rotation, the tension servo mechanism is put into a non-operating state, the rotation arm 32 is rotated counterclockwise, and the inclined tape guide 15 enters the force set 1. Further, the rotation of the arms 50 and 55 causes the head 53 to retreat out of the force setting, the pinch roller 54 to be separated from the capstan 47, and the locking of the loading base 24 by the leaf spring 100 to be released. Further, when the driving gear 41 is rotated clockwise and the loading base 24 is rotated in the opposite direction to the loading time, the upright tape guide 1
The pin 27 is guided by the cam surface 30 and moves in the reverse direction of the locus during loading, and when the loading base 24 rotates to the final position, it moves into the window 11 of the force set 1 together with the inclined tape end 14. enter.

In addition, as the tape guides 14 and 1.6 move as described above, the magnetic tape 8 that has been pulled out of the force set 1 is sequentially wound around the supply side tape winding body 2 without loosening and is brought into the force set 1. will be stored in. Furthermore, during unloading, the shaft 26 abuts against the locking portion 83 of the control lever 80, causing the bending rotation lever 72 to rotate, and the auxiliary guide mechanism 70 to move as shown in FIGS. 5 and 6. The original state is shown in . Due to the above-mentioned rotation of the bending rotation lever 72, the tape support pole 79 rises and escapes from the tape loop height position. Therefore, during unloading, the tape loops are not stopped by the tape support pole 79, but are gradually reduced in size, and are all housed within the force set 1. In this state, the device returns to its original stop mode configuration. Further, in this state, the apparatus is put into fast forward or rewind mode by a predetermined operation, and the magnetic tape 8 is run at high speed in the forward or reverse direction within the force set 1. As described above, according to the automatic tape loading device of the present invention, a tape-shaped body is pulled out from a tape storage housing and attached to a guide drum having a built-in rotary head provided outside the housing to load it into a predetermined position. A loading device that forms a tape path is disposed outside the housing near the guide drum and has a larger diameter than the tape guide, so that when a tape-like object is attached, the A tape stabilizer stabilizes the running of the tape by absorbing vibrations in the longitudinal direction of the tape that occur in the tape due to rotation. It consists of a loading means having an inclined tape guide and an upright tape guide that locks the tape-like object and pulls it out to a predetermined position, and by the loading operation, the inclined tape guide is connected to the guide drum containing the rotary head and the tape stabilizer. When loading is completed, the tape-shaped body functions as a guide pole on the inlet side of the guide drum, and the tape-shaped body is attached to the guide drum in a desired range, and the upright tape guide is moved by the loading operation. Since the tape-shaped body is configured to be moved and attached to the tape stabilizer when loading is completed, the tape-shaped body runs attached to the tape stabilizer when loading is completed, and here, the tape-shaped body is attached to the tape stabilizer when loading is completed. The vibrations are immediately absorbed and the tape reaches the inlet side of the guide drum containing the rotating head in a stabilized running state, where the distortion in the width direction of the tape is corrected by the inclined guide pole and its running is stabilized. Because it runs along the guide drum containing the rotating head in a more stable state,
It has features such as being able to record and reproduce stable video signals.

[Brief explanation of the drawing]

FIG. 1 is a plan view of an embodiment of the automatic tape loading device according to the present invention in a state before loading starts, and FIG.
3 is a plan view of the apparatus shown in FIG. 1 in a state in which loading is completed; FIG. 4 is a right side view with a portion of FIG. 3 omitted; FIGS. 5 and 6 are side views of the auxiliary guide mechanism before the start of loading, respectively, as viewed from the directions of arrows A and B in FIG. FIG. 8 is a side view showing the auxiliary guide mechanism in the loading completed state as viewed from the direction of arrow C in FIG. 3, and FIG. 9 is a longitudinal sectional side view taken along the line in FIG. 8. 1... Force set, 2... Supply side tape winding body, 3... Winding side tape winding body, 4...
... Chassis, 7 ... Inclined guide drum, 8
...Magnetic tape, 11...Window section, 14
, 15... Inclined tape guide, 16...
・Upright tape guide, 24... Loading base, 25... Rotating arm, 26...
Shaft, 27...Pin, 28...Torsion spring, 29...Cam, 30...-
・Cam surface, 38...Eccentric roller arm, 47・
... Capstan, 54 ... Pinch roller, 66 ... Stabilizer.

Claims (1)

[Claims] 1. In a loading device that pulls out a tape from a tape storage housing and attaches it to a guide drum having a built-in rotary head provided outside the housing to form a predetermined tape path, It is arranged near the guide drum and has a larger diameter than the tape guide, and absorbs vibrations in the tape longitudinal direction that occur in the tape-like body due to its rotation when the tape-like body is attached. a tape stabilizer that stabilizes the running of the tape, and an inclined tape guide that is housed in a tape storage case in the unloading state, and that locks the tape and pulls it out to a predetermined position during the loading operation. and a loading means having an upright tape guide, and by the loading operation, the inclined tape guide is moved between the guide drum incorporating the rotary head and the tape stabilizer, and when loading is completed, the inclined tape guide is moved between the tape stabilizer and the inlet side of the guide drum. Functioning as a guide pole, the tape-shaped body is attached to the guide drum over a desired range, and the upright tape guide is moved by the loading operation, and the tape-shaped body is attached to the tape stabilizer upon completion of loading. An automatic tape loading device characterized in that the tape automatic loading device is configured so that the tapes are brought into contact with each other.