JPS60182052A - Magnetic recorder and reproducer - Google Patents

Abstract

PURPOSE:To attain correct recording and reproducing and also to prevent a flaw to be caused onto a magnetic sheet and a magnetic head by allowing a door to restore to the lock position after overstroke and a motor for driving magnetic sheet to drive only when the loading of the sheet is finished. CONSTITUTION:When the lock part 44a of the 2nd lock lever 44 is moved to the lock position, a folded part 44c of the 2nd lock lever 44 turns on a switch 21 so as to energize a motor drive circuit 20. When a motor drive signal is generated from a conrol circuit 24, a motor 10 is driven so as to drive a magnetic sheet 102 at 3,600rpm, a magnetic head 12 records a picture signal of one field during the turning of the magnetic sheet 102 or the picture signal of one field recorded on the magnetic 102 is read. The movement of the magnetic head 12 by one step during two turns sheet of the magnetic sheet 102 causes a video signal for one frame's share to be recorded on 2 tracks or reproduced.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a magnetic recording/reproducing device. The present invention relates to a magnetic recording/reproducing device in which a magnetic sheet is attached to a spindle.

[Prior art]

When recording still images, it is common to use a photographic camera using silver halide photographic film, but recently so-called electrophotographic cameras that record images electrically have been proposed and are attracting attention. This electrophotographic camera is comprised of an imaging device that takes an image of a subject, and a magnetic recording device that modulates a video signal output from the imaging device and records it on a magnetic sheet. As a magnetic recording device incorporated in this electrophotographic camera, for example,
As described in Japanese Patent No. 699, when a magnetic sheet bank is loaded into a puncture holder and the door is closed, the pack holder moves to the loading position where it is inserted into the main body of the apparatus. In this loading position, the magnetic sheet is mounted on a spindle driven by a motor, and the magnetic head is in contact with the magnetic sheet. During shooting, the magnetic sheet is rotated by a spindle at 3600 rpm, and during this rotation, one field's worth of video signals is recorded on a track with a width of approximately 0°06 mm for field recording. One frame is recorded on a track. This is to ensure that 60 fields, ie, 30 frames, are played back per second when a recorded image is played back. In the magnetic recording/playback device, the trunk width is extremely narrow at approximately 0°06 mm, so if there is a slight play between the center core of the magnetic sheet and the spindle that fits into it, the recording device and playback device may There is no compatibility between the two or between reproducing devices, and reproducibility is poor when chucking is repeated, making it impossible to correctly reproduce images with the magnetic reproducing device. In order to eliminate this problem, the opening provided in the center core is formed to be slightly smaller than the spindle diameter, and this opening is made elastic so that there is almost no play between the center core and the spindle. A magnetic sheet is used.

In this way, if there is almost no play between the center core and the spindle, it will be difficult to attach the magnetic sheet to the spindle. Therefore, when fitting the center core to the spindle, the center core is forcibly fitted to the spindle against the elasticity of the opening. It becomes necessary. That is, when the magnetic sheet device is opened and closed, the door is pushed in the opening direction against this urging, so that the door overstrokes beyond the locked position, and during this overstroke, By pressing the center core of the magnetic sheet with a spring plate attached to the inside of the door, the center core can be forcibly attached to the spindle. In this way, after the magnetic sheet is securely attached to the spindle, when the door is returned to the locked position by the biasing means, the spring plate moves with the door and away from the center core, so that the magnetic sheet is blocked by the spring plate. It becomes possible to rotate at the normal rotation speed without being affected.

However, in conventional magnetic recording/reproducing devices, the spindle drive motor is configured to rotate when the power switch is turned on, so if the door is opened or closed with the power switch turned on, Since the magnetic sheet is attached or removed while the spindle is rotating, various inconveniences arise. For example, if the magnetic sheet is rotated in the initial stage of installation and the magnetic sheet is not properly chucked to the spindle due to overstroke, the load between the magnetic sheet and the magnetic head or regulating plate will fluctuate. Therefore, good recording or reproduction cannot be performed, and the magnetic sheet may be scratched or the extremely thin magnetic head may be damaged. Further, when taking out the ζ magnetic sheet, the rotating magnetic sheet is forcibly removed from the spindle, and as described above, the magnetic sheet or the magnetic nod may be damaged due to load fluctuations on the magnetic sheet.

Therefore, when attaching or removing such a magnetic sheet, the motor is rotated after the magnetic sheet is completely attached to the spindle by an overstroke operation.
Furthermore, it is necessary to remove the magnetic sheet after the motor has stopped.

[Purpose of the invention]

SUMMARY OF THE INVENTION An object of the present invention is to provide a magnetic recording/reproducing device in which a motor can rotate only when a magnetic sheet is completely attached.

[Structure of the Invention] In order to achieve the above object, the present invention provides a switch that is activated when the door returns to the lock position after an overstroke, and this switch regulates the rotation of the motor.

As the switch, a micro switch, a proximity switch, for example, a photoelectric switch, etc. are used.

Moreover, this switch may be a switch that does not drive the motor or may be a switch that stops the motor. For example, in the case of a switch that stops the motor, connect it to the short circuit of the motor so that it turns OFF when the door is positioned in the locked position, and turns ON when the door is unlocked and moved from the locked position. Configure it as follows.

The present invention relates to a magnetic recording device incorporated in an electrophotographic camera, a magnetic reproducing device incorporated in a pure device for reproducing recorded images, a printing device for printing out a hard copy, or a recording and reproducing device. It can also be used in a magnetic recording/reproducing device having both functions. In this specification, any of these aspects will be referred to as a magnetic recording/reproducing device.

[Configuration of Example]

In FIG. 1 showing a magnetic recording/reproducing device embodying the present invention, a No-Tsuku loading section 2 is attached to the main body 1 of the device so that it can be opened and closed with force, and this No-Tsuku loading sound [2 is a door 3 and , and a bar holder 4 held inside the door 3 via a plate (not shown). A magnetic sheet pack 5 is loaded into this bank holder 4. In order to position the door 3 in a vertical position,
On both sides of the door 3 and the device main body 1, there are opening/tuck mechanisms 6, which will be described later.
are each taken (dimensioned).

An example of the magnetic jets used in the present invention is shown in the second example.
It is shown in Figure (A) and Figure 2 (B). Magnetic sheet pack 5
is composed of a pack main body 101 and a magnetic sheet 102 housed rotatably in the center thereof, and the end faces indicated by arrows A and B in FIGS. 1 and 2 (A) are made common to each other. G is inserted into the device main body 1 with its surface facing upward. The magnetic sheet 102 is composed of a disc-shaped magnetic recording material 103 with a recording layer formed on the back surface, and a center core 104 located at the center of the magnetic recording material 103. This center core 104 has an opening 105 formed in its center, and the magnetic sheet drive motor 10
The spindle 11 is fitted onto the tip of the rotating shaft 10a. The opening 105 is formed in a pentagonal shape,
Furthermore, a hole 106 is formed in the vicinity of the hole 106, and the center core 1
By elastically compressing the spindle 11 with the elasticity of the plastic forming the magnetic sheet 102, the magnetic sheet 102 and the spindle 11 are configured to be attached with almost no play between them.

The bank body 101 has openings 107 and 108 for exposing the center core 104 of the magnetic sheet 102 and openings 109 and 110 for exposing the recording surface and non-recording surface of the magnetic sheet 102. The regulating plate 25 is placed on the non-recording surface, and the magnetic head 1 is inserted through the opening 110.
Recording or reproduction is performed by making each of the two protrude from the recording surface.

The member indicated by the two-dot chain line 111 is a shutter, and when the magnetic sheet pack 5 is slid and inserted into the puncture holder 4, it is pushed by the protrusion of the puncture holder 4 and moves to the open position, and the opening 109, Open 110. When taking out the set of magnetic seals 1 and 5, be careful to move them to the closed position and close the openings 109 and 110.

The counter display section 112 is for displaying the number of tracks and tracks that have been recorded, and for example, the number of tracks and tracks that have been recorded is Display. Four end-of-error prevention claws 113 are connected to the back side of the pack body 101, and their presence or absence is detected by the detector + back of the camera body or playback device body, similar to the accidental erasure prevention claws of the audio case/nod. (to avoid erroneous recording). positioning hole 114,
Reference numeral 115 indicates that when the magnetic sheet pack 5 is attached to the apparatus main body 1, the positioning pin 8 and the other positioning pin (not shown) provided on the apparatus main body 1 are inserted, and thereby the magnetic sheet pack 5 is inserted. The mounting position is regulated.

Now, as shown in FIG.
The magnetic sheet pack 5 that rotatably accommodates the magnetic sheet 02 has positioning holes 114 and 115 provided on its lower surface.
By inserting the pin 8 implanted in the device main body l,
The position in the depth direction and in the plane direction is regulated. The rotation shaft 1 of the motor 10 is inserted into the opening 105 of the center core 104.
A spindle 11 attached to the tip of Oa is inserted.

When chucking the spindle 11 and the center core 104, the metal piece 11 provided on the lower surface of the center core 104
7, and a permanent magnet Mg embedded in the recess of the spindle 11.
This is done by adsorption with. Further, a magnetic head 12 provided protruding from the device main body 1 is attached to a back bolt 4.
And it passes through one opening formed in the lower surface of the magnetic sheet back 5 and comes into contact with the recording surface of the magnetic sheet IO2. Further, the regulation plate 25 is fixed to a regulation plate holder 28 held on the door 3 via a handling spring 26.
5 passes through the other opening formed on the upper surface of the puncture holder 4 and the magnetic seat back 5, respectively, and the magnetic seat) 1
Contact the non-recording surface of 02. In addition, the reference numeral 13 is a head feeding mechanism for moving the magnetic head 12 by the radial force of the magnetic sheet 102 + nr b. It consists of a moving platform.

The puncture loading section 2 has a structure in which it overstrokes in the closing direction at the time of closing, returns to a predetermined locking position, and is locked. That is, the door 3, the plate springs 26 and 27 attached to it, and the regulation plate holder 28.
And the back holder 4 that stores the magnetic sheet pack 5 is
Although it is closed from the top to the bottom, the regulation plate holder 28
, the back holder 4, and the magnetic sheet pack 5 are each held in a locked position by contacting a predetermined position of the device main body 1,
Only the door 3 moves further downward by overstroke against the elasticity of the leaf springs 26, 27 and the like.

In the process of reaching this overstroke, the plate spring 26 provided on the door 3 positions the regulation plate holder 28 at a predetermined position on the device main body 1, and holds the regulation plate 25 at a position where it almost contacts the magnetic sheet 102. With,
The magnetic seat pack 5 is attached to the device main body 11 by pressing the magnetic seat back 5 against the device main body 1 with the leaf spring 27 and fitting the positioning pins 8 of the device main body 1 into the positioning holes 114 and 115 of the magnetic seat back 5. conduct. Furthermore, during the overstroke, the positioned regulation plate holder 28 and magnetic sheet pack 5 are further pressed by the leaf springs 26 and 27 to further ensure their loading, and the leaf springs provided on the door 3 are further pressed. 16 presses the center core 104 of the magnetic sheet 102 through the opening of the puncture holder 4, so that the center core 104 is chucked onto the spindle 11 in a proper state. After that, when the pressure on the door 3 in the closing direction is released, the leaf spring 26 that urges the door 3 in the opening direction.
27 returns the door 3 to the illustrated state, and the leaf spring 16 separates from the center core 104. At the same time,
The door 3 is positioned at a locked position by a locking mechanism 6 so that it cannot be moved either up or down in the figure.

Note that reference numeral 20 is a drive circuit for driving the motor 10. When the switch 21 is closed, the motor 10 is activated by receiving power from the power source 22, and rotates the motor 10 by an operation signal from the control circuit 24. control.

3 to 5 show the locking mechanism of the present invention. The magnetic seat back 5 is loaded from the horizontally elongated gate 4a of the puncture holder 4 held inside the door 3 via a leaf spring (not shown), and the shutter 111 of the magnetic seat back 5 is opened during loading. The magnetic sheet 102
The magnetic head 12 can now approach the object. The door 3 has an actuating plate 30 that is generally U-shaped as a whole.
is fixed, and a guide pin 30 is fixed to this actuating plate 30.
a to 30c, lock pin 30d, push pin 30
e is planted, and an L-shaped guide hole 30f is formed.

A guide groove 3 is formed in the substrate 32 fixed to the device main body l.
2a, 32b, and 32c are provided, and a guide pin 30a provided on the actuating plate 30.

30b and aoc are respectively inserted. Further, the substrate 32 is provided with openings 32d and 32e through which the lock pin 30d and push pin 30e are inserted. In addition, in order to avoid complicating the drawing, the other opening 32 at the bottom
e is omitted. Further, a pin 32f is implanted in a lever 34 attached to the base plate 32 via a shaft 33, and this pin 32f is inserted into a guide hole 3Of of the actuating plate 30. Then, the pin 30c on the actuating plate 30 and the base ti
! Spring 37 hung between i32 spring hanging piece 36
Although omitted to avoid complicating the drawing, there is a U-shaped actuation f! The upper right end of 30 and the board 32
The door 3 is biased in the opening direction by a torsion coil spring 3I hung between the door 3 and the torsion coil spring 3I. When this door 3 is opened, the guide pins 30a, 30b, 30c,
From the relationship with the guide grooves 32a, 32b, and 32c, the door 3 first moves in parallel to the left in the figure, and then the guide pin 30b
The guide pin 30c rotates counterclockwise around , and stops when the guide pin 30c comes into contact with the end of the guide groove 32c.

A tenth lever 43.41 is attached to the shaft 40.41 implanted in the substrate 32. The 20th ink levers 44 are each pivotally mounted, and each is given a counterclockwise biasing force by springs 45 and 46. 10th lever 43
has a lock portion 43a.

Bending portions 43b and 43c are provided LJ, and the 20th lever 44 has a locking portion 44a and a bending portion 44b.
, 44c, and a locking groove 44d are provided. Said i
Since the slot 44e is formed in the 20th lever 44, the shaft 4o does not get in the way when the 20th lever 44 swings about the shaft 41. Note that the codes 47a, 4
7b are the first . This is a stopper that restricts the end of the counterclockwise swing of the 20th lever 43,44.

The locking portion 43a of the tenth lever 43 and the locking portion 442 of the twentieth lever 44 face the opening 32d in order to enable a locking action on the locking pin 30d inserted into the opening 32d. Further, the bent portion 43c of the tenth lever 43 faces the opening 32e, and is adapted to receive the action of the push pin 30e inserted therein.

A locking lever 48 is further pivoted to the base plate 32 via a shaft 49 and is biased counterclockwise by a spring 5o. The locking lever 48 has a locking pin 522 operating pin 5.
3 is implanted, the locking pin 52 is located at a position facing the locking groove 44d of the 20th lever 44, and the actuating pin 53 passes through the opening 55 of the base plate 32 and faces into the movement path of the actuating plate 30. They are located in different positions.

The tips of the two pins 57 fixed to the substrate 32 are passed through slots 59 formed in the lock release plate 58, so that the lock release plate 58 is slidably supported with respect to the substrate 32. . Further, the lock release plate 58 is biased to the left in the figure by a spring 60. The rising portion 62 of the lock release plate 58 receives a pressing force for sliding the lock release plate 58 to the right by operating a release button (not shown) that can be operated from the exterior part. Further, the rising portion 64 of the lock release plate 58
．． 65, when the lock release plate 58 slides to the right, the bent portion 43 of the tenth lever 43
b. Push the bent portion 44b of the 20th lever 44 to swing the 10th lever 43 and the 20th lever 44 clockwise against their respective springs 45 and 46.

The switch 21 shown in FIG. 1 is attached to a board 32, and when the 20th lever 44 swings counterclockwise and returns to the lock position and the magnetic sheet 102 is completely attached, the bent portion 44C It will be turned on.

[Effect of the embodiment]

Next, the operation of the above embodiment will be explained with reference to FIGS. 6 to 8 showing the operation of the first and 20th levers. When the door 3 is in the open position shown in FIG. 4, the gate portion 4a is exposed, and the magnetic seat back 5 can be loaded onto the back boulder 4 through this. After loading the magnetic seat back 5, when the door 3 is pushed toward the right to close the device body I, the door 3 first pushes the guide pin 30b due to the relationship between the guide pin 30C and the guide groove 32c. Rotates clockwise around the center.

During this rotation, the lock pin 30d and the push pin 30
e moves clockwise along an arc inside the wide openings 32d and 32e, respectively. Then, as shown in FIG. 7, the push pin 30e presses the bent portion 43C of the tenth lever 43.
3 is swung clockwise against the spring 45, and the lock portion 4
3.8 is a position evacuated from the movement path of the lock pin 30d;
That is, it is brought to the unlocked position.

After that, the door 3 is attached to the guide pins 30a and 30b.

30C and the guide grooves 32a, 32b, and 32c. Due to this parallel movement, the lock pin 30d moves to the lock position, and the push pin 30e slides on the bent portion 43c of the tenth lever 43. As described above, when the door 3 enters the overstroke movement range beyond the lock position, the push pin 30e comes off the end of the bent portion 43c, and as shown by the solid line in FIG. 43 is spring 45
The first lock pin 30d is swung counterclockwise by the urging force of
The lock portion 43a of the zero lever 43 enters, and as a result, movement of the door 3 in the opening direction is blocked.

Furthermore, when the door 3 is overstroked, the right edge of the actuating plate 30 engages the actuating pin 5 embedded in the locking lever 48.
3 to swing the locking lever 48 clockwise. This swinging of the locking lever 48 causes the locking pin 52 to disengage from the locking groove 44d of the 20th locking lever 44, so that the 20th locking lever 44 swings counterclockwise due to the biasing force of the spring 46. Then, the lower edge portion of the 20th socrefer 44 that is close to the lock portion 44a comes into contact with the upper surface of the lock pin 30d that is moving over the stroke, and
The door 3 reaches the end of its overstroke.

After the door 3 reaches the end of its overstroke,
When the pressure on the door 3 in the closing direction is released, the door 3
is returned to the opening direction by the biasing force of the spring 37, but when the lock pin 30d returns by an amount corresponding to the overstroke, it is locked by the lock portion 43a of the tenth lever 43. Further, when the lock pin 30d returns, the lock pin 30d is removed from the lower edge portion of the 20th lock lever 44, so that the 20th lock lever 44 further swings counterclockwise. Then, as shown by the two-dot chain line in FIGS. 5 and 8, the lock portion 44a of the 20th lock lever 44 enters the movement range of the lock pin 30d in the overstroke direction, and as a result, the door 3 is prevented from being moved in the overstroke direction again.

When the lock portion 44a of the 20th sleeve 44 moves to the lock position, the bent portion 4 of the 20th sleeve 44 moves to the lock position.
4C turns on the switch 21 to energize the motor drive circuit 20. At this time, due to the forward movement of the overstroke described in 11;1, the temporary spring 16 is moved to the magnetic seats 1 to 102.
The center core 104 of the magnetic sheet 102 has been pushed to be properly attached to the spindle 11, and the leaf spring 16 has returned to the state where it is lifted from the center core 104 of the magnetic sheet 102 due to the return movement of the overstrophy.

When a motor drive signal is generated from the control circuit 24, the motor 10 rotates to rotate the magnetic sheath 1-102 at 360 Qrpm, and while the magnetic sheath L 102 is rotating, the magnetic head 12 records one field of image signals. carried out,
Alternatively, one field of image signals recorded on the magnetic sheet 102 is read out.

Furthermore, by moving the magnetic head 12 one step during two rotations of the magnetic sheet 102, the video signal for frame (2) is recorded or reproduced in ranks 21-21.

In the above description, the tenth lever 43 moves to the blocking position in conjunction with the forward movement of the overstroke of the door 3, and the 20th claw lever 44 moves to the blocking position in conjunction with the backward movement of the overstroke. However, the tenth lever 43 does not necessarily need to move to the blocking position in conjunction with the forward movement of the overstroke. In short, the 10th lock lever 43 and the 20th lock lever 44 lock when the door 3 returns to the lock position after an overstroke.
4 should just move to the blocking position.

To open the door 3, the lock release plate 58 can be pushed as shown by the arrow in FIG.

That is, when the lock release plate 58 is slid to the right by the operation button, the rising portion 65 provided on the lock release plate 58 presses the bent portion 44b of the 20th cut lever 44, and the 20th cut lever 44 is moved clockwise. sway to. At this time, the bent portion 44C is connected to the switch 21.
Since the motor 10 is turned off, even if the motor 10 is rotating, it can be forcibly stopped. and,
When the 20th lock lever 44 is swung by a predetermined M, the lock pin 52 on the lock lever 48 engages with the lock M% 144d of the 20th lock lever 44, and the 20th lock lever 44 is locked at that position. Stop. Therefore, even if the pressing operation on the lock release plate 58 is subsequently released, the 20th lever 44 will remain in the state shown in FIG. 3.

On the other hand, when the lock release plate 58 is pressed, the rising portion 64 provided on the lock release plate 58 presses the bent portion 43b of the tenth cut lever 43, and first the tenth cut lever 43 is turned clockwise. swing in the direction,
The lock portion 43a is retracted from the lock position. As a result, the lock in the opening direction with respect to the lock bin 30d is released, so that the door 3 is moved horizontally by the urging force of the spring 37 to the bending point of the opening 32C, and then the door 3 is moved by the urging force of the torsion coil spring 31. , the guide bin 30c moves to the upper end of the opening 32C, thereby opening the opening 32C.

Here, the timing of unlocking the 10th lock lever 43 and the 20th lock lever 44 by pressing the lock release plate 58 is as follows: First, the lock of the 20th lock lever 44 is released, and its bent portion 44C turns off the switch 21, and the motor is turned off. After the rotation of No. 10 is forcibly stopped, the lock portion 43a of the No. 10 socrefer 43 locks the lock bin 3'
It is preferable to unlock the . Although this time difference depends on the inertia of the motor 10, it is sufficient to have a few milliseconds, and after the motor 10 is completely stopped, the magnetic seat back 5
It becomes possible to take out the . The mechanical delay time for this is the bending portion 44 of the 20th lever 44.
It can be formed by selecting the contact timing of the bent portion 43b of the tenth lever 43 and the raised portion 64 of the lock release plate 58 with respect to the contact timing of the raised portion 65 of the lock release plate 58.

In this way, after the 20th lock lever 44 and the 10th lock lever 43 are unlocked in sequence, if the pressure on the lock release plate 58 is released, the lock release plate 58 is moved by the spring 6.
0 returns to the initial state, and the tenth lever 43 is returned by the spring 45 to return to the state shown in FIGS. 3 and 6. In this way, the tenth lever 43.
If the unlocking direction of the 20th lever 44 is set in the same swinging direction, the force for releasing the lock can be easily obtained from the single lock releasing plate 58.

In the above embodiment, the door 3 is configured to rotate and then move in parallel; however, this is not necessarily limited to this, and for example, the door 3 may be closed only by rotating or moving in parallel. The present invention can also be applied to.

[Effects of the Invention] The present invention having the above configuration allows the motor for driving the magnetic sheet to rotate only when the installation of the magnetic sheet is completed by returning the door to the lock position after overstroke. The magnetic sheet is not attached or removed while the motor is rotating, which allows for correct recording or playback, and prevents the magnetic sheet from being scratched or the extremely thin magnetic head from being scratched. It is possible to prevent this from happening.

[Brief explanation of drawings]

FIG. 1 is a schematic diagram of a magnetic recording/reproducing apparatus embodying the present invention. FIG. 2(A) is a plan view showing a magnetic sea puncture used in the present invention. FIG. 2(B) is a bottom view showing the magnetic sheet pack used in the present invention. FIG. 3 is an exploded perspective view showing the configuration of an embodiment of the present invention. FIG. 4 is a side view of FIG. 2 showing a state in which the door is released by pushing the lock release plate. FIG. 5 is a side view of FIG. 2 with the door in the closed position. FIG. 6 is a side view of the main parts of the present invention, showing the door in the middle of closing. FIG. 7 is a side view of the main parts of the present invention, showing a state in which the door is close to the locked position. FIG. 8 is a side view of the main parts of the present invention, showing a state in which the door is positioned at the first cock position after the overflow. ■...Device body 2...Puncture loading section 3...Door 4...Pack holder 5...Magnetic seat back 6...Lock mechanism 102...Magnetic sheet 104...
Center core 10...Motor 11...Spindle 1
2... Magnetic head 13... Head feeding mechanism 21... Switch 22... Power supply 30... Operating plate 30a, Guide pin 30b, Guide pin 30C, Guide pin 30d, Lock pin 30e, Push pin 32... Board 34 ... Lever 43... 10th lever 43a, lock portion 43b, bent portion 43C, bent portion 44, 20th lever 44a, lock portion 44b, bent portion 44C, bent portion 44d, locking groove 48, locking lever 52... Locking pin 53... Operating pin 58... Lock release plate 64... Standing part 65
...Rising part.

Claims (2)

[Claims] (1) In a magnetic recording/reproducing device in which, when the door is closed, the door moves further beyond the locked position in the closing direction, and during this overstroke, the magnetic sheet is attached to a spindle driven by a motor. . A magnetic recording/reproducing device, further comprising a switch that is activated when the door moves from an overstroke state to the lock position to control rotation of the motor. (2) The switch is electrically connected by a locking member for positioning the door in the locking position when the door moves from the overstroke state to the locking position. Magnetic recording and reproducing equipment.