JPH0584588B2 - - Google Patents

Description

Detailed Description of the Invention [Field of Industrial Application] The present invention relates to an apparatus for recording information on a recording medium and/or reproducing information recorded on a recording medium, and particularly relates to a device for recording information on a recording medium and/or reproducing information recorded on a recording medium, and particularly relates to a device for recording information on a recording medium and/or reproducing information recorded on a recording medium. The present invention relates to an information recording and reproducing apparatus that records and/or reproduces information by relatively reciprocating a sheet-like recording medium and a head section for processing information on the medium.

Such an information recording/reproducing device is suitably used as an optical information recording/reproducing device or a magnetic information recording/reproducing device.

[Conventional technology and its problems]

Conventionally, various types of recording media such as card-shaped, disk-shaped, tape-shaped, etc. are known as recording media used for recording information using a light beam and reproducing the recorded information using the light beam. ing. Among them, an optical information recording medium formed in a card shape (hereinafter referred to as an "optical card") is
It is expected to be in great demand as a recording medium that is easy to manufacture, has good portability, and has good accessibility.

In an optical card, the information tracks are formed in a straight line, and a large number of such information tracks are arranged in parallel in a predetermined area on the surface of the card. Therefore, in an information recording/reproducing device using an optical card as a recording medium, a light beam spot is continuously moved relative to the direction of the information track on the surface of the optical card, and at this time information is recorded or reproduced. After the light beam spot has moved a predetermined distance, the light beam spot is not moved by a predetermined distance on the surface of the optical card in a direction transverse to the direction of the information track, and in this case, information cannot be recorded or reproduced. Then, the information track is continuously moved relatively in the direction of the information track, and at this time information is recorded or reproduced, and in the same manner, the relative movement in the direction of the information track and the direction across the direction are performed. The relative movement of is alternately repeated a desired number of times.

As an information recording and reproducing device that performs the above operations, an optical card is held on a mounting table (hereinafter referred to as a "shuttle"), and the shuttle is moved back and forth in the direction of an information track, while the information on the optical card is One possible method is to move a head section in a direction across the information track to form a light beam spot on the track.

Therefore, optical cards are generally carried by humans, and when recording and reproducing, it is necessary to insert the card into a predetermined holding position in the shuttle of the above-mentioned device, and then to take it out from the predetermined holding position. .

Incidentally, in recent years, there has been a demand for an increase in the speed of information recording and reproducing, so in the information recording and reproducing apparatus of the above type, it is necessary to avoid misalignment of the optical card when the shuttle performs high-speed reciprocating movement and reversal. It is desirable to hold the optical card accurately and firmly in a predetermined position on the shuttle to avoid damage.

However, in the past, consideration has been given to both improving the ability to securely hold the optical card on the shuttle and improving the operability of feeding the optical card into and taking out the optical card from the shuttle as described above. No such device has been proposed.

(Means for Solving the Problems) According to the present invention, in order to solve the above problems, an information recording medium is held on a mounting table, and the mounting table is connected to a recording and/or reproducing head. On the other hand, in an information recording and reproducing apparatus that records and/or reproduces information by reciprocating motion, an elastic member provided on the mounting table is used to press the recording medium against the mounting table using an elastic force. and an abutment member that deforms the elastic member so as to release the pressing force of the elastic member against the recording medium when the mounting table is in a position for feeding or ejecting the recording medium, and the elastic member and a fixing means for fixing the mounting base so that it does not move at a position for feeding or ejecting the recording medium when the mounting base is deformed by the abutting member. , is provided.

〔Example〕

Hereinafter, specific embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a schematic perspective view showing a first embodiment of the information recording/reproducing apparatus of the present invention. Note that this embodiment is applied to an optical information recording/reproducing device.

In FIG. 1, 2 is a shuttle, and the shuttle is formed with a flat portion 4 on which an optical card is placed. The optical card is
It is sent in and taken out in the direction. The shuttle 2 is provided with members 6 and 8 for restricting movement of the optical card in the Z direction when the optical card is being inserted or removed and when the optical card is placed in a predetermined position. Additionally, the shuttle 2 is provided with spring members 10 and 12 for lightly pressing the optical card against the opposing wall in the X direction when the optical card is being inserted or removed and when it is placed in a predetermined position. has been done. Furthermore, Shiftl 2
A stopper 14 is provided for positioning in the Y direction when feeding the optical fiber. Two protrusions 16 and 18 are formed on one side of the shuttle 2, and each protrusion has a light shielding plate 20 and 2, respectively.
2 is fixed. A pin 26 extending in the X direction is fixed to the protrusion 16. Projection part 1
Coaxial through holes 6 and 18 are formed in the Y direction, and bearings 28 and 30 are attached thereto. Two guide rollers 32 and 34 are attached to the other side of the shuttle 2, and each roller is arranged in parallel at appropriate intervals in the Z direction.
It can freely rotate around the axis in the X direction.

FIG. 2 is a schematic partially cutaway perspective view showing the detailed structure of the shuttle 2, and FIG. 3 is a sectional view thereof. In Figures 2 and 3, 15
Reference numerals a and 15b are means for fixing and holding the optical card, which are fixed to the shuttle 2, and correspond to the elastic members referred to in the present invention. The holding means has one end connected to the shuttle 2.
It is fixed to the base surfaces 17a and 17b below the plane of the optical card placement section 4, and from one end to the other end, it is first diagonally upward above the plane of the optical card placement section 4. , bent at a position below the members 6 and 8, extended outward in the Y direction almost horizontally, further bent and extended downward, and bent at a position below the shuttle 2. It extends substantially horizontally in the Y direction toward the shuttle 2, and its tip extends diagonally downward at an appropriate angle.

In FIG. 1, guide members 36 and 38 are each made of a cylindrical body extending in the Y direction, and both ends thereof are connected to support members 40 and 42, respectively.
and 44, 46. All of the support members are fixed to a frame (not shown). One guide member 36 is slidably fitted into bearings 28, 30 of protrusions 16, 18 formed on the shuttle. The other guide member 38 is located at a height between the two guide rollers 32 and 34 attached to the shuttle 2. The guide troller holds the guide member 38 and is relatively movable in the Y direction.
Note that the connection between the guide member 36 and the bearings 28, 30 and the connection between the guide member 38 and the guide rollers 32, 34 are such that the shuttle 2 can smoothly reciprocate in the Y direction with respect to the guide shafts 36, 38. with minimal play.

In FIG. 1, 48 is a servo motor;
The motor is supported by a support member 50.
A drive rotation shaft of the motor 48 extends in the X direction, and a pulley 52 is attached to the shaft.
Incidentally, the motor 48 is attached with a tachometer generator 54 for detecting its rotation speed. on the other hand,
56 is a pulley, and this pulley is the above-mentioned pulley 56.
It is mounted rotatably around the X direction by a support member 58 at the same height as . A belt 60 is wound between the two pulleys 52 and 56, and a portion of the upper running portion of the belt is fixed to the lower surface of the shuttle 2. still,
Both of the support members 50 and 58 are fixed to a frame (not shown).

In FIG. 1, 62, 64, and 66 are photo couplers, and when the shuttle 2 moves in the Y direction, the light shielding plates 20, 22 attached to the protrusions 16, 18 of the shuttle reach the detection position. The purpose is to detect

In FIG. 1, 68 is a key-shaped lever, and the lever is supported at its bent portion by the support member 40 so as to be rotatable around an axis in the X direction. The horizontal portion of the lever 68 extends approximately in the Y direction, and a sloped surface 70 is formed on the lower surface side of the tip thereof, and a recessed portion 72 is formed on the slightly bent side thereof. The recess has a shape that approximately corresponds to the upper surface of the pin 26 fixed to the protrusion 16 of the shuttle 2, and is located at approximately the same height as the pin. A vertical portion of the lever 68 extends substantially in the Z direction, and one end of an extension spring 74 is connected to a substantially intermediate position thereof. The other end of the spring is connected to a frame (not shown). Further, 76 is a stopper for stopping the rotation of the lever 68 by the spring 74, and the stopper is fixed to the support member 40. A pin 78 extending in the X direction is fixed to the tip of the vertical portion of the lever 68, and one end of a connecting member 80 is connected to the tip of the pin so as to be rotatable around the X direction. The connecting member is located approximately horizontally, and its tip is connected to the operating portion of the solenoid 82. Thus, by activating the solenoid 82, the vertical portion of the lever 68 is pulled against the tensile force of the extension spring 74, and the lever 68 is thus rotated by an appropriate angle counterclockwise in the figure around the X direction. and its horizontal portion will move upward. The fixing means of the present invention includes the pin 26 and lever 68.

In FIG. 1, 84 and 86 are rollers,
All of these are attached to a frame (not shown) so as to be rotatable around an axis in the X direction and at the same height. 88 is a drive motor, the drive rotation shaft of which extends in the X direction, and a pulley 90 is attached to the shaft. A belt 92 is wound between the pulley and rollers 84 and 86. 94 and 96 are presser rollers, both of which are attached to the side surface of the movable plate 98 so as to be rotatable around an axis in the X direction. The roller 94 is located above the roller 84, and the roller 94 is located above the roller 84.
6 is located above the roller 86. The movable plate 98 is movable in the Z direction along a guide means (not shown), and one end of an extension spring 100, 102 is connected to each end of the movable plate 98. The other end of the spring is connected below to a frame (not shown), so the rollers 94, 96 are constantly pulled downward. The direction in which the belt 92 runs horizontally between the rollers 84 and 86 is the Y direction, and the belt running portion is located at approximately the same height as the optical card mounting section 4 of the shuttle 2.

In FIG. 1, numerals 104 and 106 are sensors for detecting when an optical card passes below, and these sensors are located above the horizontally running portion of the belt 92. Moreover, 108 is an optical card insertion part, and an opening 110 for inserting an optical card in the Y direction is formed. The opening is located at a position approximately corresponding to the card placement portion 4 of the shuttle 2 in the X direction, and at approximately the same height as the horizontally running portion of the belt 92, and penetrates in the Y direction. The sensors 104, 106 and the optical card insertion section 108 are attached to a frame (not shown).

Furthermore, in FIG. 1, reference numeral 112 denotes an optical head section, which is located above the optical head mounting section 4 of the shuttle 2 and can project a light beam 114 downward. The head portion 112 is attached to a frame (not shown) so as to be movable back and forth in the X direction by an actuator (not shown).

In FIG. 1, reference numerals 116a and 116b are locking members attached to a frame (not shown), and sloped surfaces for locking the tips of the optical card holding means 15a and 15b attached to the shuttle 2, respectively. 118a (not shown) and 118b are formed on the lower surface side. These locking members 116
a and 116b correspond to the abutment members in the present invention.

In FIG. 1, the optical card 120 is mounted and held on the optical card mounting section 4 of the shuttle 2, and the shuttle 2 is in the recording and/or reproducing position. The optical card 120 has a rectangular shape with two sides in the X direction and two sides in the Y direction, and has an appropriate thickness in the Z direction. A recording area 122 is provided on the surface of the optical card 120, and a large number of information tracks 124 are formed in this area in parallel to the Y direction. The recording area 122 is located between the card holding members 6 and 8. optical card 1
20 is supported by members 6 and 8 on the mounting portion 4 so as not to move substantially vertically, and is pressed against the opposing wall surface in the X direction by spring members 10 and 12. The Y-direction end portion is brought into contact with.

In this embodiment, a notch 130 is formed in the placement part 4 of the shuttle 2 and the member 8 at a position facing the rollers 86, 96, and in this part, a corner of the optical card 120 is placed in the shuttle 2. stands out from

Next, the operation of the apparatus of this embodiment as described above will be explained.

First, the shuttle 2 is in a position where the pin 26 attached to the protrusion 16 engages with the recess 72 formed in the horizontal portion of the lever 68. In this state, the light shielding plate 20 attached to the protrusion 16 of the shuttle 2 is at the detection position of the photocoupler 62. Further, in this state, the roller 8 is attached to the card placement portion 4 of the shuttle 2 and the notch portion 130 of the member 8.
6,96 is located. FIG. 4 is a schematic partial plan view showing the positional relationship between the notch 130 and the roller 96 at this time.

In addition, in this state, the card holding means 15a, 15 fixedly installed on the card placement part of the shuttle 2
The tip portions of b are locking members 116a and 116, respectively.
It is locked to the inclined surfaces 118a and 118b of b. FIG. 5 is a schematic plan view showing this state, and the portion where the card holding means is lowered downward by being locked with the locking member and is located above the plane of the mounting portion 4 of the shuttle 2 is do not have.

Next, a person inserts the optical card into the opening 110 of the card insertion section 180 in the direction of arrow A. When the tip of the inserted optical card reaches the detection position of the sensor 104 and detection is performed, the drive motor 88 is activated by a command from the control unit, and the pulley 90 rotates in the direction of arrow B, causing the pulley and roller 84 to rotate. ,8
A belt 92 wound around 6 runs. The horizontal portion of the belt runs in the direction of arrow A, and the rollers 94 and 96 rotate accordingly. When the optical card is further inserted in the direction of arrow A and its tip reaches between the rollers 84 and 94, the optical card is inserted between the horizontally running portion of the belt 92 and the roller 9.
4 and is guided by a guide means (not shown) and sent in the direction of arrow A. The optical card moves in the direction of arrow A, and its leading end passes between rollers 86 and 96, and then advances onto optical card placement section 4 of shuttle 2, which is at the same height. At this time, the optical card is pressed against the opposing wall surface in the X direction by the spring members 10 and 12, but the optical card feeding force based on the driving force of the motor 88 and the tensile force of the springs 100 and 102 is Since the frictional force is greater than the frictional force based on the pressing force, the optical card advances further and finally its tip collides with the stopper 14 attached to the shuttle 2. At this time, as shown in FIG. 5, the card holding means is locked by the locking member and the card holding function is released, so the optical card reaches the predetermined position extremely smoothly. At the same time, when the rear end of the optical card reaches the detection position of the sensor 106 and detection is performed, the rotation of the drive motor 88 is stopped in response to a command from the control section, and the solenoid 82 is further actuated to move the lever 68 as shown in the figure. The recess 72 of the lever is rotated counterclockwise to disengage the pin 26 of the shuttle 2, and the servo motor 48 is then driven to run the belt 60, thus securing it to the belt. The shuttle 2 moving in the direction of arrow A moves. The operation of the solenoid 82 is stopped after the shuttle 2 starts moving. When the shuttle 2 starts to move, the movable plate 98 is moved upward and locked to release a part of the rear end of the optical card from being held between the rollers 86 and 96 via the belt 92. . After the shuttle 2 has moved a relatively short distance, as shown in FIG.
Card holding means 15a, 15b (not shown) are provided with locking members 116a, 116b (not shown), respectively.
The card 120 is released from the latching state and tries to restore itself based on its springiness, and thus the card 120 is pressed toward the members 6 and 8 (not shown) and is firmly held.

When the shuttle 2 starts moving, the output of the tachogenerator 54 is detected, and the rotation speed of the motor 50 is controlled to a predetermined value according to a command from the control section. In this way, the shuttle 2 is moved in the direction of arrow A at a constant speed. Projection part 1 of shuttle 2
When the light shielding plate 22 attached to the shuttle 8 reaches the detection position of the photocoupler 66 and detection is performed, the rotation speed of the motor 48 is lowered by a command from the control section, the moving speed of the shuttle 2 is reduced, and the shuttle 2 finally stops.
Simultaneously with this stop, the motor 48 starts rotating in reverse according to a command from the control section, and the rotational speed is gradually increased, thereby accelerating the shuttle 2 in the direction of arrow A', which is opposite to the direction of arrow A. During movement in this direction, as in the case of movement in the direction of arrow A, the rotational speed of the motor 48 is controlled to a predetermined value by a command from the control section based on the output detection of the tachogenerator 54. By the time the light-shielding plate 22 reaches the detection position of the photocoupler 66, it has reached a constant moving speed of the same magnitude as when moving in the direction of the arrow A, and the shuttle 2 thereafter moves at this constant speed. Moving. The light shielding plate 20 attached to the protrusion 16 of the shuttle 2 is connected to the photocoupler 64.
When the light shielding plate 22 reaches the detection position of the photocoupler 66 and detection is performed, the movement of the shuttle 2 in the direction of arrow A' is decelerated and stopped, and the movement of the shuttle 2 in the direction of arrow A is stopped. By the time the light shielding plate 20 reaches the detection position of the photocoupler 64 due to acceleration, the arrow A is moved at the same constant speed as above.
Move in the direction of. Below, in the same manner, shuttle 2
performs reciprocating motion in the Y direction.

During the above-mentioned reciprocating movement, the optical bed section 112 emits a light beam 114, thereby recording information in the recording area 122 of the optical card 120 or reproducing information recorded in the recording area. will be carried out. During this recording/reproduction, the optical head section 112 moves a predetermined distance in the X direction (that is, the distance between the information tracks 124 in the X direction, or a distance that is an integral multiple thereof) at or before or after the reversal of the movement of the shuttle 2 in the Y direction. The light beam 114 thus forms a spot on the desired information track 124 of the optical card 120 and is sequentially scanned.

After the recording and reproducing operation is completed, the motor 48 is decelerated after the light shielding plate 20 reaches the detection position of the photocoupler 64, and the motor 48 is decelerated.
It is controlled so that it is stopped exactly when it reaches the detection position of the photocoupler 62. Therefore, the shuttle 2 moves in the direction of arrow A', and the pin 2 attached to the protrusion 16 of the shuttle 2 moves in the direction of arrow A'.
6 comes into contact with the inclined part 70 of the horizontal part of the lever 68,
The lever is rotated counterclockwise in the figure against the tensile force of the spring 74, and finally the pin 26 is attached to the lever 6.
8 and is engaged with the recess 72 by the tensile force of the spring 74. In this state, the shuttle 2 and the roller 96 have a positional relationship as shown in FIG.
The optical card portion located in the notch 130 is on the roller 86 via the belt 92, and the roller 96 is located above it. Immediately after this, the upper locking state of the movable plate 98 is released, and the springs 100, 102 are released.
Based on the tensile force of the roller 96, the optical card portion on the roller 86 is clamped by the pressure of the roller 96. on the other hand,
When the light-shielding plate 20 reaches the detection position of the photocoupler 62 and detection is performed, the motor 88 is rotated in the direction of the arrow B', which is opposite to the direction of the arrow B, in response to a command from the control section, and thus the horizontal running portion of the belt 92 is rotated. travels in the direction of arrow A'. Due to this driving force, the optical card held between the rollers 86 and 96 is moved from above the mounting section 4 of the shuttle 2 to the members 10 and 12.
The arrow moves against the frictional force based on the pressing force, etc.
It is pulled out in the direction of A′. Then, the optical card moves in the direction of arrow A' on the belt 92 while being pressed by rollers 96 and 94, and finally reaches the insertion section 108.
A person pulls out the optical card in the direction of arrow A'. sensor 104
When the motor 88 detects that the optical card has finished passing, the motor 88 is stopped by a command from the control section.

According to this embodiment, the optical card feeding/drawing means mainly constituted by 88 to 102 automatically feeds the optical card 120 onto the shuttle 2 and takes it out from the shuttle under certain conditions. In particular, the optical card can always be accurately fed into a predetermined holding position on the shuttle, and the optical card will not be damaged during feeding or withdrawal.

FIG. 7 is a schematic partial sectional view showing a second embodiment of the information recording/reproducing apparatus of the present invention. Like the first embodiment, this embodiment is also applied to an optical information recording/reproducing device. In FIG. 7, the same members as in FIGS. 1 to 6 are designated by the same reference numerals.

This embodiment differs from the first embodiment only in the optical card holding means provided in the shuttle 2. That is, in FIG. 7, a projecting member 140 is provided on the lower surface side of the Y-direction end of the optical card feeding/removing side of the shuttle 2. A lever 144 is mounted substantially horizontally so as to be rotatable. The lever and the shuttle 2 are also connected by an extension spring 146, so that the lever 144 is always biased clockwise around the pin 142. The top surface of the tip of the lever 144 is an inclined surface. On the other hand, a stopper 150 is formed on the lower surface of the shuttle 2, by which the lever 144 is locked. Further, a hole in the Z direction is formed at the end of the shuttle 2, and a rod 152 is slidably inserted into the hole, and the lower end of the rod is locked by the lever 144. . In this embodiment, optical card holding means is constituted by 140 to 152. As shown in FIG. 7, the upper end of the rod 152 protrudes above the plane of the optical card placement section of the shuttle 2, and the stopper 14 of the rod 152 allows the optical card 120 on the placement section to be fixed. Misalignment is prevented.

When an optical card is transferred onto the shuttle 2 or when an optical card is removed from the shuttle, the inclined surface at the tip of the lever 144 is brought into contact with the inclined surface of the locking member 116a as the shuttle 2 moves in the Y direction. Then, the lever 144 rotates counterclockwise in the figure by an appropriate angle around the pin 142 against the tensile force of the spring 146. As a result, the rod 152 moves downward, and its tip touches the shuttle 2. It will be located below the plane of the mounting section. In this way, the optical card can be smoothly inserted into the shuttle 2 and taken out from the shuttle 2.

According to the above embodiment, the holding function of the optical card holding means is released only when the optical card holding means is in the position for inserting/removing the optical card and in the vicinity thereof automatically in synchronization with the movement of the shuttle. Since the function is released mechanically, the structure of the holding means is relatively simple.

In the embodiments described above, the optical card holding means consists only of mechanical means, but the optical card holding means of the present invention may use other means, such as electromagnetic means.

Furthermore, although the above embodiment describes an example in which information is recorded on and reproduced from a recording medium using a light beam, the present invention also includes other methods for recording and reproducing information on a recording medium. It also includes devices that magnetically record and/or reproduce information on a recording medium.

〔Effect of the invention〕

According to the present invention as described above, when the recording medium is fed onto the mounting table and when the recording medium is taken out from the mounting table, the pressing force of the elastic member against the recording medium is released by the contact member. As a result, feeding and taking out can be performed with extremely small resistance, and therefore, the driving source for feeding and taking out can be downsized and energy-saving. Furthermore, according to the present invention, when recording and reproducing information on an information recording medium, the recording medium is held under pressure by the elastic member, so that recording and reproducing operations are performed satisfactorily. In addition, according to the present invention, by fixing the mounting table at the position for feeding or taking out with the fixing means during feeding and taking out when the pressing force by the elastic member is released,
Since the position of the mounting table can be accurately fixed at a predetermined position when loading or unloading the recording medium to or from the mounting table, the loading and unloading operations can be performed accurately and reliably. .

[Brief explanation of the drawing]

FIG. 1 is a perspective view of the apparatus of the present invention. FIG. 2 is a partially cutaway perspective view of the shuttle of the device of the present invention;
FIG. 3 is a sectional view thereof. FIG. 4 is a partial plan view of the device of the present invention. 5 to 7 are partial cross-sectional views of the vicinity of the shuttle of the apparatus of the present invention. 2... Shuttle, 4... Placement section, 15a, 15
b... Optical card holding means, 36, 38... Guide member, 48, 88... Motor, 60, 92... Belt, 68... Lever, 82... Solenoid, 1
08... Card insertion section, 112... Optical head section,
116a, 116b...Locking member, 120...Optical card, 130...Notch, 144...Lever, 152...Rod.

Claims (1)

[Scope of Claims] 1. An information recording and reproducing apparatus that records and/or reproduces information by holding an information recording medium on a mounting table and reciprocating the mounting table with respect to a recording and/or reproducing head, The device is for pressing the recording medium against the mounting base with an elastic force, and the elastic member provided on the mounting base and the mounting base are in a position for feeding or ejecting the recording medium. an abutment member that deforms the elastic member so as to release the pressing force of the elastic member against the recording medium; 1. An information recording and reproducing device comprising a fixing means for fixing the device so as not to move at a position for feeding or taking out.