JPH0877666A - Magnetic tape-driving apparatus - Google Patents

Abstract

PURPOSE: To simplify a driving mechanism and a control system for a motor by improving particularly an ejecting mechanism for ejecting a cartridge from a tray. CONSTITUTION: When a cartridge is fitted in a tray, a push lever 17 of a driving mechanism 20 is turned and at the same time, a stopper lever 22 is turned, so that the cartridge presses a switch. A geared motor 16 of a driving part is accordingly activated to turn a cam 21b by 215 deg.. As a result, an eccentric pin 18 is turned and the driving force is transmitted to an arm. The tray is lowered and set in a horizontal state along a guide groove. When the cartridge is to be taken out, the geared motor 16 is driven/rotated in the opposite direction to turn a main body of the cam in a counterclockwise direction, thereby raising the tray. At this time, when the push lever 17 is brought to a 45 deg. position, the turning force of the cam is converted to a turning force of the push lever 17 in the counterclockwise direction because of the biasing force by a torsion spring 24. In consequence, the cartridge is ejected from the tray. The tray can be moved up/down and the cartridge can be pushed out only by the forward/rearward rotation of the cam and the motor.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a magnetic tape drive device, and more particularly to a mechanism for forcibly ejecting a cartridge containing a wound magnetic tape from a tray carrying the cartridge.

[0002]

2. Description of the Related Art This type of magnetic tape device is roughly divided into two types: an open reel type tape reel as an information recording medium and a cartridge type.

In recent years, it is well known that a magnetic tape device is required to have a large capacity in order to record a large amount of information, and a device using a cartridge type as a recording medium is widespread in terms of usability. That is.

A cartridge intended to be used for a model 3480 manufactured by IBM Corp. as a storage device using this type of cartridge has an outer shape of 4 inches wide, 5 inches long and 1 inch high, The specific configuration is described in US Pat. No. 4,452,406,
For details, refer to the same publication.

This cartridge is a one-reel type in which a magnetic tape is wound and housed. The cartridge is set at a predetermined position by inserting it from the front opening of the device, and the leader block attached to the tip of the tape is pulled out of the device. The tape is wound around the take-up hub by being pulled out by the means, and the tape is driven to drive the magnetic head to record and reproduce predetermined information.

An example of a magnetic tape drive device capable of recording or reproducing in the same recording format while maintaining compatibility with the above-mentioned IBM cartridge is disclosed in, for example, Japanese Patent Laid-Open No. 2-2.
The device shown in Japanese Patent No. 57461 has been proposed.

The above-mentioned conventional apparatus inserts the cartridge into the tray to detect the insertion state of the cartridge and the switch (write enable switch) for detecting whether or not the magnetic tape in the cartridge can be written. When a mechanical detection switch such as) is pressed by the tip of the cartridge, a control signal is supplied to the device and the device is selectively driven.

In the device which is selectively set in the driving state, the driving mechanism operates according to the detection signal of the switch. The tray accommodating the cartridges descends in a horizontal state by the link mechanism, and in the descending position, the chucking hub of the tape reel on which the magnetic tape is wound is firmly engaged with the spindle of the motor functioning as the rewinding side to be drivable.

[0009]

By the way, in the above-mentioned apparatus, a cam attached to a drive mechanism such as a motor serves as means for conveying the cartridge between the loading position and the predetermined mounting position of the apparatus by the tray. Is rotated in the forward and reverse directions, and the linkage constituted by a plurality of links is driven by the rotation of the cam, so that the tray is reciprocally moved up and down.

And, in the above-mentioned known device,
When the cartridge stored in the tray is discharged to the outside of the device and another cartridge is inserted again, the motor is driven in reverse to discharge the cartridge so that the cartridge pushing lever that interlocks with the rotation of the cam enters the tray. However, after the appropriate operation, the step of driving the motor again in the mounting direction in the normal direction to retract the cartridge pushing lever to the cartridge insertable position is included. In this way, in order to return the cartridge push-out lever from the cartridge discharge position to the cartridge insertable position again, a complicatedly shaped cam and drive of the motor in forward, reverse, and positive 3 degrees are required, which complicates the drive mechanism. As a result, extra time is spent on the initial setting of the device, which is extremely inefficient.

Further, since the set position of the cartridge push-out lever is configured to detect the position by a photo sensor or the like and control the motor by the detection signal, the control system of the motor becomes complicated, and the cost is increased by using the sensor. In addition to the high height, there is a problem in that a stable pushing operation cannot be performed due to an error in the mounting position of the photo sensor.

[0012]

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and an object of the invention is to use a special sensor only by rotating the motor for vertically moving the tray in two forward and reverse directions. Instead, the cartridge is ejected from the tray by the displacing means.To this end, the cartridge containing the wound magnetic tape is loaded into the tray that moves up and down in the device, and the tray is guided to the predetermined mounting position. In the magnetic tape drive device in which the tape reel in the cartridge and the reel drive unit are connected by doing so, the first displacement means that is rotationally displaced by the cartridge inserted in the tray, and the first displacement means. Second displacing means having a locking portion that cooperates with the rotational movement of the displacing means and is biased by a turning force so as to be displaced relative to the first displacing means; A cam unit that is driven by a reversible motor and has an engaging portion that can be engaged with and disengaged from the locking portion of the second displacing means to move the tray up and down; A first displacement means, a second displacement means, and a fixing means having a regulation portion that regulates the rotational position of the cam means, and the tray is placed between the cartridge insertion position and the reel drive portion. A drive mechanism for moving up and down is configured, and the tray storing the cartridge is lowered to the mounting position by the rotation of the cam means in accordance with the rotation of one of the motors, and the rotation of the other of the motor causes the tray of the cam means to move. The tray is lifted by the rotation return, and the tray is raised by the engagement between the engaging portion and the locking portion.
There is provided a magnetic tape drive device in which the cartridge is projected from the tray by the rotation return force of the first displacement means through the displacement means.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of a magnetic tape drive device according to the present invention will be described in detail below with reference to FIGS.

As the magnetic tape drive apparatus of the present invention, the above-mentioned I which promotes system compatibility as in the above-mentioned conventional apparatus is promoted.
It accepts a 3480 cartridge that is compatible with BM devices and allows information to be recorded or reproduced in a recording format similar to that used by IBM.

That is, as shown in FIG. 1, the cartridge A is pivotally displaced from the front opening 1a of the apparatus casing 1 to the position indicated by the alternate long and short dash line from the position indicated by the solid line to the open / close door 3, and the rectangular tray in the raised position. By loading the cartridge 2 into the storage section 4 of the cartridge A, the pushing lever 17 of the drive mechanism 20 to be described later is pressed by the tip of the cartridge A to rotationally displace it in the clockwise direction, and then the cartridge is placed in the inner portion of the tray 2. By pressing the mechanical detection switches 5a, 5b such as a switch for detecting the inserted state of the cartridge A and a switch (write enable switch) for detecting whether or not the magnetic tape in the cartridge can be written. , Various states for the device are set. After that, the drive mechanism 20 operates according to the output signal of each detection switch, and the tray 2 is guided by the rotation of the eccentric pin 18 to the guide pins 2d ₁ , 2d ₁ , 2b.
_{Using 3} etc. as a guide shaft, descend horizontally to the mounting position of the cartridge A.

In the lowered mounting position of the cartridge A, the motor 7 mounted on the chassis 6 and functioning as the rewinding side.
A chucking hub (not shown) of the tape reel 8 meshes with the spindle 7a of. At this time, the lower position of the cartridge A is regulated by the stopper pin 10 planted on the chassis 6, and the position of the cartridge A is regulated by the positioning pin 9. Thereafter, the tape pull-out means (not shown) of the apparatus operates, pulls out the leader block attached to the tip of the magnetic tape, and winds this around the take-up hub (not shown),
It is configured to record / reproduce a predetermined information signal on the magnetic tape running by the rotation of the take-up hub.

Here, a specific structure of the tray 2 for carrying the cartridge A will be described. As shown in FIG. 2, the tray 2 is set to have a predetermined size so that the cartridge A can be received, and the upper plate 2a, the lower plate 2b, and the pair of left and right side plates 2 are provided.
c, 2d and the back plate 2e are formed into a rectangular shape,
As described above, the opening 2f for inserting the cartridge A is provided at a position corresponding to the front opening 1a of the housing 1. A pair of upper and lower guide pins 2d ₁ and 2d are provided at the approximate center of one side plate 2d.
₁ is planted, and the upper side guide pin 2 is attached to the other side plate 2c.
One guide pin 2c ₁ is planted at a position facing d ₁ . The spindle shaft 7b of the motor 7 described above is located on the line connecting the centers of the guide pins 2d _{1 and} 2c ₁ .

An open / close door 3 bent in an L shape is rotatably supported on the front opening side of the side plates 2c and 2d. Further, the hanging plate 2b ₁ along the casing 1 on the front opening side is bent in the lower plate 2b, the hanging plate 2b ₁
A guide plate 2b ₂ is hung on the rear portion in parallel with this. In addition, 2b ₃ is the guide pin attached to the center of the guide plate 2b ₂ .

The back plate 2e includes a switch for detecting the insertion state of the cartridge A as in the above-described conventional structure and a switch (write enable switch) for detecting whether or not the magnetic tape in the cartridge can be written. A pair of mechanical detection switches 5a and 5b are attached,
The operating rod projects into the tray 2.

Further, a drive plate 2g which is a drive member extending in parallel to the side plate 2d and on the side opposite to the opening 2f is fixed to the back plate 2e. An elongated hole (driving hole) 2g ₁ is formed in the longitudinal direction of the drive plate 2g, and a cam, which will be described later, is attached to the geared motor 16 of the drive mechanism 20 in the elongated hole 2g ₁ as shown in FIGS. The eccentric pin (driving pin) 18 is inserted and the tray 2 moves up and down by the transmission of power through the elongated hole 2g ₁ by the rotation (rotation) of the eccentric pin 18 accompanying the rotation of the geared motor 16.

The upper plate 2a is formed with a pair of through holes 2a ₁ and 2a ₁ facing each other along the insertion direction of the cartridge A.

Reference numerals 11 and 11 denote sliding members fitted into the through holes 2a ₁ and 2a ₁ , respectively, and have a recess 11b having a step size h with the flat portion between the pair of left and right wide flat portions 11a and 11a. Then, it is integrally formed in a long shape with resin or the like. Further, 11c is a tongue piece that hangs from the recess 11b, and has a size and shape that can be fitted into the through holes 2a ₁ and 2a ₁ of the upper plate 2a. Therefore, this sliding member 1
By fitting the _one tongue piece 11c, 11c into the through holes 2a ₁ , 2a ₁ , respectively, the wide flat portions 11a, 11a are brought into contact with the upper plate 2a and positioned. In addition, each flat portion 1
Pins 12 and 12 are erected on 1a and 11a.

Reference numeral 13 is a leaf spring which is an elastic means installed between the pair of sliding members 11 and 11, and the flat surface portion 11 is provided.
13a corresponding to a and 11a and having through holes 13a ₁ and 13a ₁ through which the pins 12 and 12 are inserted are provided, and the elastic pieces and the slits 13b are provided respectively. ... 13b, and a pair of second elastic pieces 1 corresponding to the positions of the recesses 11b, 11b.
3c and 13c. The leaf spring 13 is provided with the tongue piece 11c and the sliding member 11 having the tongue piece 11c fitted in the through holes 2a ₁ and 2a ₁ of the upper plate 2a, and the flat portion 1 thereof.
Through holes 13a in pins 12 and 12 of 1a and 11a, respectively.
_{With 1} and 13a ₁ fitted together, through hole 13c in the center
_It is assembled on the tray 2 together with the sliding member 11 by fixing it to the screw hole 2a ₂ of the upper plate 2a with the screw 14 via ₁ .

By this assembly, the leaf spring 13 is bent by the thickness of the flat surface portion 11a, and each tongue piece 11 of the sliding member 11 is bent.
flat part 11 of which c is elastically projected into the tray 2
The a and 11a are in contact with the upper plate 2a and their positions are regulated. In this state, the second elastic pieces 13c and 13c corresponding to the recesses 11b and 11b maintain a predetermined distance.

Here, the cartridge pushing-out mechanism which constitutes a part of the main part of the present invention will be described more specifically with reference to the exploded perspective view of the drive mechanism 20 shown in FIG.

The push-out operation of the cartridge A is constructed integrally with the drive mechanism 20 for moving the tray 2 up and down. That is, the geared motor 16 is a rectangular holder 1 fixed to a fixed portion such as the chassis 6.
A shaft 16a is inserted into an annular through hole 19a formed in the shaft 9 and a disc-shaped cam body 21 is fixed to the tip of the shaft 16a.

An upper end portion of the holder 19 has an L-shaped restricting portion 19b projecting forward, and a stopper portion 19c is projectingly formed on an inner surface of the through hole 19a.

On the other hand, the cam body 21 has a disk-shaped large-diameter flange portion 21a facing the front surface of the holder 19, and a disk-shaped guide portion 21d located on one side of the flange portion 21a.
And an arcuate cam body 21b that is connected to the guide portion 21d.
And a disc-shaped restricting body 21c (also shown in FIG. 7) projecting to the other side of the flange portion 21a and are integrally formed, and are fixed to the shaft 16a of the geared motor 16.

An engaging portion 21b projecting on the outer peripheral surface of the cam body 21b so as to be engageable with and disengageable from a stop lever 22 described later.
₁ , and the above-mentioned eccentric pin 18 is planted on the end face. The restricting body 21c is shaped so as to be fitted in the through hole 19a of the holder 19 with a certain allowance, and the outer peripheral surface of the restricting body 21c slides through the through hole 19a of the holder 19 and the stopper portion 19c. Abut the cam body 21
A locking portion 21c ₁ that restricts the rotation position of itself is formed to project.

Further, the pushing lever 17 is provided with a pressing portion 17
₁ and the arm portion 17 ₂ are formed in a substantially L shape, and the arm portion 17 ₂ has a through hole 17a that fits with the guide portion 21d of the cam body 21, and the base portion of the arm portion 17 ₂ has a bow. The base of the shaped stop lever 22 is pivotally supported by a pin 23. Then, the torsion spring 24 is fitted and inserted into the support shaft 17b on the pushing lever 17, one end of the torsion spring 24 is locked to the back surface of the pushing lever 17, and the other end is brought into contact with the back surface of the stop lever 22. As a result, although the stop lever 22 is urged to rotate in the counterclockwise direction, the stop lever 22 comes into contact with the arc-shaped rotation restricting portion 17c of the pushing lever 17 to restrict the rotation position, and the rotation position in the clockwise direction. The rotation range is restricted at a predetermined angular position by a pin 17d on the push lever 17.
By mounting the torsion spring 24, the stop lever 22 elastically clamps the cam body 21b by the counterclockwise rotating force about the pin 23, so that the push lever 17 and the stop lever 22 are separated from the cam body 21. It does not fall out.

Therefore, the stop lever 22 is the push lever 1
The relative rotation range is restricted between the arc-shaped rotation restricting portion 17c of 7 and the pin 17d.

This assembled state is shown in FIGS. 6A and 6B and FIGS. 7A and 7B, in which the arm portion 17 ₂ of the pushing lever 17 abuts against the regulating portion 19b of the holder 19 and is positioned. Regulated. Further, the engaging portion 21b of the latch 22a and the cam member 21b ₁ which projects on the inner surface of the stop lever 22 is possible engagement of corresponding two. Then, the stop lever 22 is also brought into contact with the restricting portion 19b of the holder 19 and its position is restricted. However, the stop lever 22 slightly rotates clockwise against the force of the torsion spring 24, and the latch 22a and the cam body 21b.
Since and are in the disengaged state, the clockwise rotation is not restricted. The turning range of the stop lever 22 may be set to an appropriate position disengaging the position of the member in a range capable of engaging portion 21b ₁ of the latch 22a and the cam member 21b.
Further, the locking portion 21c ₁ of the regulation body 21c abuts on the stopper portion 19c of the holder 19 so that the rotational position of the cam body 21 itself is regulated.

Here, the operation of the magnetic tape drive device having the above-mentioned configuration will be specifically described with reference to FIGS. Note that FIG. 7A, FIG. 8A, FIG. 9A, and FIG.
(A) is the XX arrow in FIG. 3, FIG. 7 (B), FIG. 8 (B),
9 (B) and 10 (B) are views showing the Y-Y arrow direction in FIG. 3, respectively.

When the cartridge A is loaded by rotating the opening / closing door 3 into the tray 2 stopped at the raised position shown in FIG. 5 (A), the tongue piece 11c of the sliding member 11 is moved to the first position on the upper surface of the cartridge A. 13a is pushed up against the elastic force of the elastic pieces 13a ... 13a, and when the cartridge A reaches the position shown by the alternate long and short dash line, the tip of the pushing lever 17 in the state shown in FIGS. Is pressed to rotate the pushing lever 17 about 45 degrees clockwise around the guide portion 21d as shown in FIGS. 5B and 6B in accordance with the subsequent insertion operation of the cartridge A. The rotation power of the extrusion lever 17 may be minute.

The torsion spring 2 is rotated by the rotation of the pushing lever 17.
The stop lever 22 biased by the elastic force of 4 also rotates in the same direction. The rotation of the stop lever 22 causes the latch 22a to rotate along the arc of the cam body 21b.

Then, as shown in FIG. 5B, the cartridge A reaching the innermost portion of the tray 2 has a pair of switches 5a,
Press 5b respectively. At the time of this insertion, the first elastic pieces 13a ... 13a on the tray 2 have an appropriate sliding resistance and sufficiently withstand the reaction force due to the pressing force of the switch, so that the cartridge A projects from the inside of the tray 2. It will be kept stable. In this state, the distance between the second elastic piece 13c and the concave portion 11b becomes small, but the two do not come into contact with each other.

Then, the geared motor 16 on the fixed portion, which is the drive portion, operates in response to the detection signal of the switch,
As shown in (A) and (B), the cam body 21b rotates about 215 degrees clockwise to rotate the eccentric pin 18,
By the eccentric pin 18, the driving force is transmitted to the long hole 2g ₁ of the arm 2g, and the tray 2 holding the cartridge A has four guide pins 2b ₃ , 2c ₁ , 2d ₁ and 2d ₁ as guide shafts. Guide grooves 15b, 1 on the fixed portion side (not shown)
5c, 15a, 15a guides you down in a horizontal state,
The mounting position shown in FIG. 5C is reached. When this tray 2 descends,
The tray 2 is regulated in the front-rear direction by the guide pins 2c ₁ , 2d ₁ and 2d ₁ and is regulated in the left-right direction by the guide pins 2b ₃ so that the tray 2 is maintained in a horizontal state and is unnecessary for the geared motor 16. Stable driving can be performed without load acting.

Thereafter, the cartridge A abuts on the stopper 10 and fits with the positioning pin 9 to regulate the lowered position. At this time, the locking portion 21c ₁ of the cam body 21 (regulating body 21c) is held by the holder 19 as shown in FIGS.
It comes into contact with the stopper portion 19c. Also, since the engaging portion 21b ₁ of the cam body 21b passes through the latch 22a of the stop lever 22 by the rotation of the cam body 21, the cam body 2
The latch 22a of the stop lever 22 whose turning force is urged by the torsion spring 24 to the 1b side is brought into the engageable position by the rotation return of the cam body 21 described later.

In this lowered position, the spindle 7a
Moves inward as the cartridge A is lifted, and the elastic force of the spring 17 pressing the tape reel 8 and the pressing force acting on the chucking hub integrated with the tape reel 8 cause the sliding member 11 to move through the cartridge A. Further pushing force causes the second elastic piece 13c to come into contact with the concave portion 11c by this pushing force to hold the cartridge A in the tray 2 with an appropriate force, whereby an appropriate adhesion force acts on the chucking hub. However, the smooth rotation of the tape reel 8 is guaranteed.

The cartridge A which has reached the predetermined position
The tape pull-out means of a device (not shown) operates to guide the tape end (leader block) in the cartridge so that the tape is wound around the take-up hub, and the magnetic force is applied to the magnetic tape running by the rotational drive of the take-up hub. The head records or reproduces a predetermined signal.

Now, the operation of taking out the cartridge A when the predetermined recording / reproducing operation is completed and the apparatus is set to the cartridge eject mode will be described.

The motor 7 is rotationally driven so as to rewind the tape wound on the take-up side hub, and at the end of winding, the tape pull-out means of the apparatus returns to store the leader block in the cartridge A. To do.

Then, the geared motor 16 is driven in the reverse direction, the cam body 21 rotates counterclockwise, and the tray 2 accommodating the cartridge a is raised to the initial position along the plurality of guide pins.

When the tray 2 is raised, the cam body 21 is moved to the position shown in FIG.
From the position shown in FIG.
When the pushing lever 17 reaches the turning position of 45 degrees as shown in FIGS. 6B and 6C, the engaging portion 21b ₁ of the cam body 21b exerts an urging force by the elastic force of the torsion spring 24 as described above. Since it has an engaging relationship with the latch 22a of the stop lever 22 that is operating, the rotational force of the cam body 21 is converted into the counterclockwise rotational force of the pushing lever 17 via the stop lever 22. Therefore, the cartridge A is forcibly pushed out of the tray 2 by the turning force of the pushing lever 17.

When the pushing lever 17 for pushing out the cartridge A is rotated and returned from the initial position by about 11 degrees as shown in FIGS. 10 (A) and 10 (B), the tip of the stop lever 22 is brought into the restricting portion 19b of the holder 19. Due to the contact, the stop lever 22 rotates clockwise against the force of the torsion spring 24. At the same time when the engagement state between the engaging portion 21b ₁ of the latch 22a and the cam member 21b is released by the rotation of the stop lever 22, extrusion lever 17 torsion spring 24 is biased than once in the counterclockwise direction Similarly, this also contacts the regulating portion 19b of the holder 19 and returns to the initial position shown in FIGS. 6 (A) and 7.

When the cartridge pushing out operation is completed by the above series of operations, the stopper portion 19 of the holder 19 is
The rotation of the cam 21 is blocked by c, and the geared motor 16
The control circuit of the device detects this due to the increase in the current of
Since the power supply to the geared motor 16 is cut off, a series of operations is completed without using a sensor or the like.

As described above, according to the present invention, the pushing operation of the upper and lower sides of the tray 2 and the ejection of the cartridge A can be completed only by the simple cam and the drive of the motor 2 times in the forward and reverse directions. Therefore, the control of the drive mechanism is simple. It is efficient.

[0048]

According to the magnetic tape driving device of the present invention described in detail above, the cam having a simple shape and the motor
Since the vertical movement of the tray and the push-out operation of the cartridge can be completed by only driving the drive twice reversely, the control of the drive mechanism is simple and efficient, and the set position of the cartridge push-out lever is set to a photo sensor like the conventional device. Since it is not necessary to detect the position with the motor and control the motor with the detection signal, the motor control system is simple and there is no need to use a special sensor. However, it has the advantages that it does not cause a malfunction and that the number of parts is small and the device can be downsized.

[Brief description of drawings]

FIG. 1 is a side view of an embodiment of a magnetic tape driving device of the present invention.

FIG. 2 is an external perspective view of a tray of an embodiment of the magnetic tape driving device of the present invention.

FIG. 3 is a plan view of the magnetic tape driving device of FIG.

FIG. 4 is an exploded perspective view of a drive mechanism that constitutes a part of an essential part of the present invention.

FIG. 5 is a side view showing an operating state of the magnetic tape driving device of the present invention.

FIG. 6 is an external perspective view showing an operating state of the magnetic tape driving device of the present invention.

FIG. 7 is a side view showing an initial state of a drive mechanism which constitutes a part of a main part of the present invention.

FIG. 8 is a side view showing an operating state of the drive mechanism when the cartridge is inserted.

FIG. 9 is a side view showing an operating state of a drive mechanism showing an engagement position between a stop lever and a cam body when a cartridge is ejected.

FIG. 10 is a side view showing the operating state of the drive mechanism at the end of cartridge ejection.

[Explanation of symbols]

1 ... door, 2 ... tray, 2b _3, 2c _1, 2d ₁ ... guide pin, 2 g ... arm, 6 ... chassis, 11 ... slide member, 13 ... plate spring, 16 ... geared motor, 17 ... extrusion lever, 18 ... drive pin, 19 ... holder, 19b ... regulation part, 19c ... stopper, 20 ... drive mechanism, 21 ... cam body, 21b ... cam body, 21c ... regulation body, 22 ... stop lever, 22a ... latch, 24 ... torsion spring .

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[Procedure amendment]

[Submission date] April 18, 1995

[Procedure Amendment 1]

[Document name to be corrected] Drawing

[Correction target item name] All drawings

[Correction method] Change

[Correction content]

FIG.

[Figure 6]

[Fig. 2]

[Figure 3]

[Figure 4]

[Figure 5]

[Figure 7]

[Figure 8]

[Figure 9]

[Figure 10]

Claims (1)

[Claims] 1. A tape reel and a reel drive in the cartridge, wherein a cartridge containing a magnetic tape wound therein is loaded in a tray that moves up and down in the apparatus, and the tray is guided and lowered to a predetermined mounting position. A magnetic tape drive unit in which the cartridge is inserted into the tray, the first displacement unit pivotally displaced by the cartridge inserted into the tray, and the rotary operation of the first displacement unit, and The second displacing means is provided with a locking portion biased by a rotational force so as to be displaced relative to the first displacing means, and the second displacing means driven by a motor capable of forward and reverse rotation. A cam means for moving the tray up and down having an engaging portion that can be engaged with and disengaged from the locking portion, a motor for supporting the first displacement means, the second displacement means, and the cam means. Regulations that regulate the rotational position A drive mechanism for moving the tray up and down between the cartridge insertion position and the reel drive portion, and a rotation means for rotating the cam means according to one rotation of the motor. The tray containing the cartridge is lowered to the mounting position by the movement, and the tray is lifted by the rotation return of the cam means by the other rotation of the motor. On the other hand, the engagement between the engaging portion and the locking portion. A magnetic tape drive device in which the cartridge is projected from the tray by the rotation return force of the first displacement means through the second displacement means.