JPH01122062A - Pushing-in device for recording medium - Google Patents

Abstract

PURPOSE:To secure the loading of a recording medium by pushing in the recording medium to a prescribed position in a holding mechanism by a pushing-in part. CONSTITUTION:When a solenoid 91 is operated, one end of a lever 92 is pulled, and the lever 92 is rocked around a spindle 93, and the lever 82 is rocked through a pin 86 as well around the spindle 83. As the result, a pushing-in roller 81 is moved in the direction of a disk 20. Then, in a case that the insertion of a video flopy F into a bucket 22 is imperfect, when the pushing-in roller 81 reaches the position of a notch 21, its upper flange 81b presses one side of the flopy F1 by the pulling force of the solenoid 91, and consequently, the flopy F1 is pushed in further into the bucket 22 so as to be inserted to the prescribed position, and is locked.

Description

[Detailed Description of the Invention] Summary of the Invention A recording medium (magnetic, optical, or other recording medium) is reliably inserted to a predetermined position in a holding mechanism provided on a moving body (rotating body, linearly moving body, etc.). By urging the pushing member in the direction of the insertion opening of the holding mechanism when the recording medium is not in the holding mechanism, the recording medium is pushed into the holding mechanism as the movable body moves.

BACKGROUND OF THE INVENTION This invention records signals on arbitrary tracks and reproduces signals from arbitrary tracks by moving a recording/reproducing head in the radial direction of a recording medium that rotates five times.

Or, in a recording/playback device that performs both recording and playback, it relates to a pushing device that completely pushes a recording medium to a predetermined position within its holding mechanism to ensure its attachment, especially when holding a large number of recording media. The present invention relates to a recording medium pushing device suitably installed in an auto changer capable of automatically moving a recording medium to a recording/reproducing position and exchanging the recording medium to be recorded/reproduced.

The applicant has already proposed an automatic changer capable of automatically and quickly exchanging a plurality of recording media (Japanese Patent Application No. 110484/1983). This auto changer includes a rotating body equipped with a plurality of mechanisms arranged at equal angular intervals on the circumference for detachably holding a recording medium. This rotating body rotates at high speed in order to quickly move a predetermined recording medium to a recording/reproducing position or a recording medium loading/unloading position.

The recording medium holding mechanism is provided with a mechanism for locking the inserted recording medium, and this locking mechanism is activated when the recording medium is inserted to a predetermined position. If the recording medium is not fully inserted, the locking mechanism will not work, causing the problem that the recording medium will fly out due to the centrifugal force generated as the rotating body rotates. Even if such a problem does not occur, recording/reproducing operations are not possible unless the recording medium is mounted in a predetermined position.

SUMMARY OF THE INVENTION An object of the present invention is to provide a pushing device that can forcibly push a recording medium that has not been inserted to a predetermined position to ensure that the recording medium is mounted.

The recording medium pushing device according to the present invention is a movable body having a recording medium insertion/ejection opening formed at one end and a holding mechanism for detachably holding the recording medium.

A pushing part is provided at one end, and this pushing part moves a pushing member provided close to the locus of the moving body of the insertion/removal opening of the holding mechanism, and a pushing part of the pushing member into the holding mechanism. It is characterized in that it is equipped with a drive device that urges in the direction of ejection.

The moving body includes not only rotating bodies but also those moving in a straight line.

According to this invention, when the movable body moves and the holding mechanism reaches a position where the pushing member is located while the pushing part of the pushing member is urged in the direction of the insertion/ejection opening of the holding mechanism by the driving device, Or, when the moving body moves and the holding mechanism reaches the position of the pushing member, or when the holding mechanism reaches the position of the pushing member or stops, the pushing part is energized by the drive device, and the recording medium inserted into the holding mechanism is inserted. The recording medium, which is incomplete or incomplete, is pushed to a predetermined position within the holding mechanism by the pushing portion of the pushing member, and the recording medium is securely mounted. Therefore, normal θl operation is possible when this recording medium is brought to the recording/reproducing position. The holding mechanism on the moving body moves with the movement of the moving body, so
The pushing member can be provided at a position different from the recording medium attachment/detachment position, so that it does not interfere with the recording medium insertion/removal operation at the first attachment/detachment position, and the degree of freedom in design is increased.

Recording media are magnetic recording media such as floppy disks,
This concept includes optical recording media such as optical disks, magneto-optical disks, and the like. Optical recording media also include those that represent information by a combination of parts that transmit and block (or reflect) light.

DESCRIPTION OF EMBODIMENTS An embodiment in which the present invention is applied to a magnetic recording medium pushing device will be described below with reference to two drawings.

Figures 1 and 2 are schematic diagrams showing the entire mechanical configuration of an autochanger in a magnetic recording/reproducing device. The cross-sections are shown in each figure. Further, in FIG. 1, the packet 22 indicated by arrow A is shown in dashed lines to indicate the video floppy F stored therein, and at the location indicated by arrow B, the packet 22 indicates the configuration of the disk 20 at that location. , and only the video floppy F is shown in dashed lines.

With reference to these drawings, in a video floppy F (magnetic recording medium) that is loaded into a magnetic recording/reproducing device,
A magnetic disk 18 is rotatably housed within the jacket 11. The disk hub (core) at the center of the magnetic disk 18 is 19ft.

It extends into the center hole 12 of the jacket 11. Windows 14 are opened in part of both sides of the jacket 11 to expose the recording/reproducing area of the magnetic disk 18 to the outside. This window 14 is normally closed by a shutter 15, but when it is inserted into a packet 22, which will be described later, the shutter 15 cannot be automatically opened by an opening/closing mechanism (not shown) provided in the packet 22. In addition, holes 13 are formed at several locations in the jacket l to receive positioning pins 74, which will be described later, for positioning and fixing the video floppy F within the packet 22.

A disc 20 for holding such a video floppy F is fixed to a belt pulley 31 fixed to a one-rotation shaft 30. The rotating shaft 30 is rotatably supported by a bearing stand 35 mounted and fixed on the bottom plate 1.

On the other hand, a step motor 40 for rotationally driving the disk 20 is arranged at a position slightly apart from the two-rotation shaft 30. The step motor 40 is preferably fixed at a position inside the outer circumferential edge of the disc 20 in order to use the space below the disc 20 as effectively as possible.

A horizontal member 41 is extended and fixed between the support member 42 fixed to the bottom plate 1 and the bearing stand 35 mentioned above. The step motor 40 is attached to the horizontal member 41 via a mounting member 43 with screws. The horizontal member 41 is formed with a plurality of long holes 49 through which the screws are passed, and a large long hole 48 through which the output shaft 40a of the step motor 40 projects upward. 1. By forming the elongated hole 49.

The mounting position of the step motor 40 can be adjusted.

A belt pulley 44 having teeth is fixed to the output shaft 40a of the step φ motor 40. Teeth are also formed on the belt pulley 31 to which the first disc 20 is fixed. A timing belt 45 is placed between these belt pulleys 44 and 31, whereby the disc 20 is rotationally driven by the stepper motor 40. In this way, since the timing belt 45 is used as a means for transmitting the rotational power of the step motor 40 to the disk 20, the timing belt 45 acts as a buffer material and can suppress noise and vibration. .

A plurality of packets 22 (ten in this embodiment) containing video floppies F are fixed onto the disk 20 with screws. These packets 22 are.

They are arranged radially on the same circumference at equal angular (36°) intervals. The outer end face of the packet 22 is completely opened and cut out in an arc shape for inserting or ejecting the video floppy F (this opening is referred to as an insertion/ejection opening, and the insertion/ejection opening and the notch are indicated by reference numeral 23). Further, the upper surface of the packet 22 is largely cut out to form an opening 24. From the opening 24 is the window 14 of the attached video floppy F.
and the center hole 12 are exposed.

Disc 2 at a position corresponding to opening 24 of packet 22
0 is also provided with an opening 25. The opening 25 is longer than the opening 24 of the packet 22. packet 2
2 reaches the recording/reproducing section 50 described later and the recording/reproducing operation is started, the opening 24 and the window 14 are opened from above.
The regulating plate 63 enters through the magnetic disk 18 and comes into contact with the upper surface of the magnetic disk 18 . The magnetic head enters from below through the opening 25 and the window 14 to reach the lower surface of the magnetic disk 18 (recording/recording/
(playing surface).

Further, a lower spin lure 5 of a motor 76 which will be described later and rotates the magnetic disk 18 also advances into the opening 25 of the disc 20.

On the outer peripheral edge of the disk 20, a similar arcuate notch 21 is formed at the position where the packet 22 is provided, corresponding to the arcuate notch 23 of the packet 22. These notches 21 and 23 facilitate the attachment and detachment of the video floppy F to and from the packet 22 at the attachment/detachment position of the video floppy F (for example, a point symmetrical position with respect to the recording/reproducing section 50 and the rotation axis 30). It is for. Since a part of the video floppy F attached to the packet 22 is exposed to the outside through these notches 21 and 23, the video floppy F can be attached or detached by hand or by the attachment/detachment mechanism. This facilitates the operation of the pushing device 80, which will be described later.

The disc 20 further includes a hole 2B through which the positioning pin 74 passes.

A positioning hole 27 through which the positioning bin 73 passes is bored. The positioning holes 27 are provided at equal angular intervals corresponding to the positions where the packets 22 are provided, and this is for correctly positioning a predetermined packet 22 in the recording/reproducing section 50.

The lower peripheral edge of the belt pulley 31 extends outward like a brim (32
), where the radial slits 3 are arranged at equal angular intervals (θ-36°) for each angular position where the packet 22 is provided.
3 is formed. The location where the slit 33 is formed is called a set position SP.

Two radial auxiliary slits 34 are formed in the collar 32 on both sides of any one of the slits 33 in close proximity thereto. The position of the slit 38 sandwiched between the auxiliary slits 34 is called a home position (reference angular position) HP.

The home position is also the position during the set. These slits 33. 34 is a recording/reproducing section 5 which will be described later.
It is detected by an angular position sensor (photoelectric switch) 36 provided at 0 and used for controlling the step motor 40 and positioning the disc 20.

A recording/reproducing section 50 is located at a predetermined angular position on the disk 20.

Further, another predetermined angular position, for example, the position opposite to the recording/reproducing section 50 as described above, is a position for attaching and detaching the video floppy F. The video floppy F is inserted into the packet 22 from the insertion/ejection port 23, which has reached this insertion/removal position by rotation of the disk 20.

The video floppy F inserted up to a predetermined position in the packet 22 is locked at that predetermined position by a locking mechanism (not shown, a known mechanism may be used) provided in the packet 22.

When the disc 20 rotates, a centrifugal force acts on the video floppy F inserted into the packet 22. If the video floppy F is inserted to a predetermined position within the packet 22 and locked by the locking mechanism, the video floppy F will not fly out from the packet 22 even if centrifugal force is applied. However, if the video floppy F is incompletely inserted and has not been inserted to a predetermined position in the packet 22, the video floppy F will not be locked, and the video floppy F will fly out from the packet 22 when the disk 20 rotates. Even if the video floppy F is sent to the recording/reproducing unit 50 without flying out, if the video floppy F is not placed in the predetermined position within the packet 22, the magnetic disk 18 will be chucked by the spindle 75, the magnetic head and the regulating plate 63
Touching the magnetic disk 18 or the like is not possible or is not performed correctly, making it impossible to perform recording/reproducing operations.

A device 80 is provided at the angular position where the motor 40 is provided for forcibly pushing the video floppy F, which has not been inserted to the predetermined position in the packet 22 at the video floppy attachment/detachment position, to a predetermined position. The disk 20 rotates clockwise in FIG. 1 in the floppy exchange mode or when the power is turned on (it rotates in any direction when bringing a predetermined video floppy F to the recording/playback section 50 for recording/playback). The position where the pushing device 80 is provided is the position next to the video floppy attachment/detachment position (a position 36 inches away) when the disk 20 is rotated clockwise.

Regarding the video floppy pushing device 80.

In addition to FIGS. 1 and 2, enlarged views thereof are shown in FIGS. 3, 4, and 5. Figure 3 is a plan view, Figures 4 and 5 are lines IV-IV and V of Figure 3, respectively.
- It is a sectional view taken along the V line.

Referring to these drawings, the pushing device 80 has two parts.
-82,92 are included. One lever 82 is rotatably supported by a shaft 83 erected on the horizontal member 4L, and a shaft 87 is provided at one end thereof. A push roller 81 is rotatably provided on this shaft 87.

The push roller 81 has a V-groove 81a, and its upper and lower peripheral edges extend in the radial direction. This peripheral portion is a flange 81b,
Let's call it 81c. (2) The height position of the push roller 81 is determined so that the groove 81a is at the same height as the peripheral edge of the disk 20. The lever 82 is biased by a pinched spring 84 in a direction in which the push roller 8 [is moved away from the periphery of the disk 20. The coil portion of the pincer spring 84 is wound around the shaft 83, and one end is a part of the lever 82.

The other ends are respectively received by pins 85 erected on the horizontal member 41.

The other lever 92 is provided below the horizontal member 41 and is rotatably supported by a shaft 93 similarly fixed to the horizontal member 41. On the other hand, the mounting member 96 is attached to the support member 42.
is fixed, and a solenoid 91 is provided on the mounting member 9θ at its base end so as to be freely rotatable in the horizontal direction. The rod 91a of the solenoid 91 is connected to one end of the lever 92 and the pin 9.
5, they are rotatably connected.

The other end of the lever 92 has an elongated hole 94 extending in the horizontal direction thereof, and a pin 8B fixed to the other end of the lever 82 and extending downward passes through this elongated hole 94. Therefore, levers 82 and 92 are connected at this other end.

When the solenoid 91 is not operating, the force of the spring 84 causes the push roller 81 to be at the outermost position (the position farthest from the circumferential edge of the disc, this is referred to as a retracted position). The push roller in the retracted position is indicated by 81(A) using the symbol A.

When the solenoid 91 is activated, the above-mentioned end of the lever 92 is pulled by the solenoid 91, so that the lever 92 is connected to the shaft 9.
The lever 82 swings around the shaft 8 through the bin 86.
It swings around 3. As a result, the push roller 81 is displaced in the direction of the disk 20. The push roller 81 is.

Although it is possible to displace the disc 20 to the maximum position shown at 81(C) in FIG. 3, in the angular positions of the disc 20 shown in FIGS. Since it hits a portion other than the circular arc notch 21 on the periphery (see especially FIG. 5), it is held at the position shown at 81(B).

6 and 7 show a state in which the disc 20 has been further rotated clockwise by an appropriate angle to a position where the single arcuate notch 21 is exposed to the push roller 81. As can be seen from these figures, when the solenoid 91 is in operation, one disk 2
With the rotation of 0, the push roller 81 opens its V groove 81a.
rolls relatively along the circumference of the disc 2o, but the notch 2
When reaching position 1, if a video floppy F is present in the packet 22 provided at the position of the notch 21, the push roller 81 will move its upper flange 81b to one side of the video floppy F (81(D). ).

If the video floppy is not fully inserted into the packet 22 as shown by the chain line Fl in FIG. As a result of pushing one side of F1 by the tensile force of the solenoid 91, the video floppy F1 is pushed further into the packet 22 until it is inserted into a predetermined lockable position and is therefore locked in that position. In this way, even if there is a video floppy that has not been inserted to the predetermined position of the packet 22, when the video floppy is sent from the attachment/detachment position to the pushing device 80 by the rotation of the disk 20, The pushing device 80 reliably inserts it to a predetermined position.

A switch 98 is provided for detecting whether a video floppy F is present in the packet 22 that has arrived at the pushing device 80. This switch 98 is realized by a limit switch, for example, and is fixed to a mounting member 99 provided on the horizontal member 41. The height position of the actuator of this switch 98 is
It is set at the same height as the lower flange 81c. Further, this switch 98 is located on a line connecting the center of the push roller 81 (more precisely, the center of the push roller at the position indicated by 81(E) in FIG. 6, which will be described below) and the center of the rotating shaft 30.
Further, when the solenoid 91 is in operation, the push roller 81 is displaced to its maximum extent (this is indicated by the chain line 81 CE in FIG. 6).
This is the same position as shown in FIG. ), the actuator is installed in a position where it does not operate.

Therefore, with the solenoid 91 in operation, the
When the disc 20 rotates and the notch 21 reaches the position of the roller 81, if there is a video floppy F in the packet 22 corresponding to the notch 21 (the same applies even if it is incompletely inserted), the switch 98 will not be activated. First, if there is no video floppy F, switch 98 is activated and a detection signal indicating the absence of a video floppy is output.

The pushing operation of the incompletely inserted video floppy by the pushing device 80 and the operation of checking the presence or absence of the video floppy by the switch 98 are performed, for example, when the power of this autochanger is turned on.

This is done in floppy exchange mode. In other modes, such as recording/playback mode, the solenoid 91
is not operated, and the push roller 81 is placed in the above-mentioned retracted position.

Returning to FIGS. 1 and 2, in the recording/reproducing unit 5°, shafts 52 and 53 are provided at the rear of the left and right side plates 51 constituting the frame fixed to the bottom plate 1, and shafts 52 and 53 are parallel to each other and rotate respectively. It is freely suspended horizontally.

Two gears 54 are fixed to the shaft 52, and two gears 55 are fixed to the 1d153 at regular intervals. These gears 54 and 55 mesh with each other.

Both sides of the support plate 60 holding the upper drive unit are bent downward to form side plates. This side plate extends rearward to form an arm B1 and is fixed to the outer surface of the gear 54. The regulating plate mechanism held by the support plate 60 includes a regulating plate 63 and a holder 64 thereof. The regulating plate 63 is fixed to the holder 64.

The holder 64 is held by a support plate 80 by a coil spring 65.

The support plate 70 that holds the lower drive unit is the mounting member 7
1 to the gear 55. This mounting member 7
A long hole 72 is formed in the arm portion of the first arm, and the shaft 52 passes through the long hole 72. Although the mounting member 71 is driven to swing as will be described later, interference with the shaft 52 is prevented by the elongated hole 72.

The support plate 70 includes a rotary drive unit for rotationally driving the magnetic disk 18 and a head transfer unit (not shown in FIG. (Illustrated path) is provided. The rotary drive unit includes a motor 76 having a spindle 75, a frequency generator that outputs a frequency signal representing the number of rotations of the motor 7G, a board on which a motor control circuit is assembled, and the like. The spindle 76 and magnetic head of the motor 75 protrude above the support plate TO.

The head transfer unit includes a step motor, a mechanism for movably holding the magnetic head, a mechanism for converting the rotation of the step motor into linear motion of the magnetic head, and the like.

A positioning pin 73 is provided at the tip of the support plate 70, and positioning pins 74 are provided at other appropriate locations. The positioning pin 7B changes the angular position of the disc 20 to the position of the support plate 70 after the step motor 40 rotates the disc 20 by passing the pin 73 through the two consecutive positioning holes 27 of the disc 20. This is to accurately match the The positioning bin 74 is for positioning the video floppy F. Both bottles 73 and 74 have tapered upper portions.

Such an upper support plate 60 is above the disk 20.

The lower support plates 70 are located below the discs 20, respectively. Support plates 80 and 7 are supported by a swing drive mechanism (not shown).
0, for example, the lower support plate 70, is driven to swing. Since the gears 54 and 55 are in mesh with each other, when one support plate is swung, the other support plate is also swung, and these support plates 60 and 70 move toward or away from each other.

Furthermore, the above-mentioned photoelectric switch 36 is fixed to the frame of the recording/reproducing section 50. The rotation of the step motor 40 is controlled based on the detection signal from the photoelectric switch 36, and the predetermined packet 22 and the video data therein are controlled.
The floppy disk F is positioned in the recording/reproducing section 50.

When the recording/reproducing section 50 is performing recording or reproducing processing in the above recording/reproducing mode (in this case, the push roller 81 is in the retracted position).

As shown by the solid line in FIG. 2, the support plate Go, 70 is in a closed state.

When replacing the video floppy disk F to be recorded/reproduced, the support plate 70 is driven to swing in the direction shown by the chain line in FIG. 2 by the swinging mechanism described above. As the support plate 70 swings, the gear 55 of the shaft 53 rotates counterclockwise. Since the gear 54 meshes with the gear 55, it rotates clockwise, and the support plate 60 swings and rises to the position indicated by the chain line. In this way, both support plates 60 and 70 open, that is, move away from each other.

In this state, the video floppy F in the recording/reproducing section 50 is replaced. That is, the disk 20 is rotationally driven by the motor 40 until a predetermined (for example, the next) video φ floppy F comes to a predetermined position in the recording/reproducing section 50 (that is, until the photoelectric switch 36 detects a predetermined slit 33). Ru.

When the disk 20 stops at a predetermined angular position, the swing mechanism swings the support plate 70 upward. The support plates 80.70 approach each other from the front and back of the circle 1f20. A spindle 75 fixed to the support plate 7o enters through the opening 25 of the first disk 20 and chucks the magnetic disk 18 of the video floppy F. It also gently contacts the magnetic disk 18 in the magnetic L\rad video floppy F. Support plate 70
The positioning pin 74 placed in
and position the video floppy F. More accurate angular positioning of the disc 20 is achieved by the positioning pin 73 of the support plate 70 protruding to the front side through the hole 27 of the disc 20 (at this time, the step motor 40 is in a weakly excited state or a non-energized state). ). Support plate 60
The regulating plate B3 passes through the opening 24 of the packet 22, enters the inside of the video Φ floppy F through the window 14, and comes into contact with the magnetic disk 18.

In the above embodiment, the video floppy, which has not been completely inserted into the packet 22, is pushed into the locked position by the pushing device 80 as the disk 20 rotates. Predetermined recording medium holding mechanism (packet)
It is also possible to stop the rotation of the disk 20 when it reaches the position of the pushing device, and to push the pushing portion of the pushing device toward the recording medium to push the recording medium to a predetermined position in the holding mechanism. At this time, the pushing device is preferably placed at a position that is an integral multiple of the holding mechanism interval from the recording medium loading/unloading position (for example, in the above embodiment, 3B''Xn:n is an integer and preferably 1). This makes it possible to perform a pushing operation when the disk is stopped for insertion/removal of a recording medium or recording/reproduction.

There is no need to take the trouble to stop the disk (moving body) for the pushing operation, making it possible to save two hours and simplify control.

[Brief explanation of the drawing]

Figures 1 and 2 schematically show the overall mechanical configuration of an autochanger in a magnetic recording/reproducing device, with Figure 1 being a plan view and Figure 2 taken along line II-II in Figure 1. This is a cross-sectional view. 3 is an enlarged view of a part of the auto changer, and is a plan view of the pushing device, FIG. 4 is a sectional view taken along the line IV-IV in FIG. 3, and FIG. It is a sectional view taken along the line v-v in the figure. FIG. 6 is a plan view showing a state in which the disc has further rotated and the pushing roller has reached the arcuate notch, and FIG. 7 is a cross-sectional view taken along the line ■--■ in FIG. 18...Magnetic disk (recording medium). 20... Disc (moving body). 22...Packet (holding mechanism). 30...Rotation axis. 80... Pushing device. 81...Pushing roller (pushing part). 82, 92...lever. 91... Solenoid. F...Video floppy (recording medium). that's all

Claims (1)

[Scope of Claims] A movable body having a recording medium insertion/ejection port formed at one end and a holding mechanism for removably holding the recording medium; A recording medium comprising: a pushing member provided close to the trajectory of the insertion/ejection opening that follows the movement of the movable body; and a drive device that biases the pushing part of the pushing member in the direction of the insertion/ejection opening of the holding mechanism. pushing device.