JPS61261848A - Image information processor - Google Patents

Abstract

PURPOSE:To obtain an image information processor which facilitates the loading and unloading of optical disks while its constitution is simplified by fitting plural optical disks at intervals to a driving shaft which is tapered at both end parts and performing information processing on an optical disk while rotating the driving shaft. CONSTITUTION:Plural optical disks 5 are fitted at intervals to the driving shaft 4 whose end parts are both tapered to constitute a storage medium unit 6, which is rotted to perform information processing on a desired optical disk 5. At this time, a timing disk 7 is fitted onto the driving shaft 4 and collars 8 and optical disks 5 are fitted alternately; and an upper collar 9 is put thereupon and then they are clamped with a nut 11 with a handle 10. The lower tapered part 4a of the driving shaft 4 is fitted in the tapered hole 12a of a driving member 12 and also fitted in the tapered hole 13a of a presser member 13, and the upper end part of the shaft 4 is provided with a presser member 13, a support shaft member 13b, and an arm 14, which are pressed by a torsion spring 17 to stabilize the rotation of the unit 6.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to an improvement of an image information processing apparatus using an optical disk as an information storage medium.

[Technical backbone of the invention and its problems]

Recently, image information processing devices that use optical disks as storage media can greatly increase the information storage capacity compared to the conventionally widely used magnetic image information processing devices, and are extremely stable and stable with little noise. In addition to being able to obtain a playback state that is highly stable, the storage state is extremely stable as it is not easily affected by external influences, and information processing can be performed in a non-contact state, with no negative effects such as damage to the storage medium or information processing head. It is becoming widely used due to its unique features.

Furthermore, recently, in order to cope with the increase in the amount of information processing, development of image information processing apparatuses that can handle a plurality of optical disks is underway.

However, in conventional image information processing apparatuses that can handle multiple optical disks of this type, information processing is performed by resetting the optical disks as information storage media one by one from A-1 to the changer. However, there were problems in that the structure became complicated, the device became large, and a relatively long waiting time was required for replacement.

[Purpose of the invention]

The present invention was made based on the above-mentioned circumstances, and its purpose is to have a relatively simple and compact configuration that does not require large-scale equipment such as an engine. To provide an image information processing device which can handle a number of optical disks in a short time and has a structure in which attachment and detachment of the optical disk can be performed extremely easily.

[Summary of the invention]

In order to achieve the above object, the present invention includes a storage medium unit in which a plurality of optical disks are arranged at a predetermined interval on a drive shaft, and while rotating the storage medium unit, a predetermined optical disk is inserted. The drive shaft has both ends tapered so that one side faces the drive member and the other faces the tapered hole of the holding member, and the holding member is connected to the drive shaft. The structure is such that it is held by an arm that is rotatable via a support shaft that is perpendicular to the main body and is always biased in a predetermined direction.

[Embodiments of the invention]

Hereinafter, one embodiment of the present invention will be described with reference to the drawings.

FIG. 1 shows the external appearance of an image information processing device. In the figure, 1 is the main body of the device having a cover 2 on the top. Inside the main body 1 of the device are an optical disk handling mechanism section 3 and a control mechanism section (not shown). is in a stored state.

As shown in FIG.
. . , and is configured to select a predetermined optical disk 5 and perform information processing while rotating the storage medium unit 6.

In the storage medium unit 6, after the timing disk 7 is fitted onto the drive shaft 4, a plurality of (five in this embodiment) collars 8 and optical disks 5 are alternately fitted onto the drive shaft 4.

Next, after fitting the upper collar 9 onto the outside, a nut 11 integrally provided with the handle 10 is screwed to form a unit.

Further, the drive shaft 4 of the storage medium unit 6 has both ends 4
a and 4b are tapered, and one end (lower end) 4a is fitted into the tapered hole 12a of the drive member 12, and the other end (upper end) 4b is pressed into the tapered hole of the member '+3. 13a, the drive shaft 4 is held vertically and rotatably.

The holding member 13 that holds the upper end of the drive shaft 4 has its support shaft 13b rotatably held by a bearing 15 provided at the tip of the arm 14.

The arm 14 is attached such that its base end is rotatable via a support shaft 16 and is always urged in a predetermined direction (in the direction of the arrow in FIG. 2) by a screw spring 17 as an urging member. The rotation of the information storage medium unit 6 is kept stable by pressing the drive shaft 4 with a constant force.

Further, the arm 14 is rotatable in the direction opposite to the arrow direction against the biasing force of the screw spring 17, so that the holding member 13 can be removed from the upper end of the drive shaft 4 if necessary. It has become. In this state, the information storage medium unit 6 can be pulled out of the apparatus main body 1 through an opening 19 formed in the upper frame 18 by holding the handle 10 and lifting it upward.

On the other hand, the drive member 12 that holds the lower end of the drive shaft 4 has its support shaft part 12b rotatably held by a bearing part 21 mounted on the lower frame 20, and also has a gear 25 and a gear. It is configured to be interlocked with a drive shaft 28a of a motor 28 for driving the storage medium unit via a power transmission system consisting of a bell i-26, a gear 27, and the like.

In addition, as shown in FIG. 3, there is a structure near the information storage medium unit 6 which is rotationally driven while the drive shaft 4 is held in the vertical direction. A pair of reading units 1 to 30 and 30 as information processing units are arranged at symmetrical positions.

These reading units 30, 30 are connected to bearing portions 34.3 provided on both the upper and lower frames 18.20, respectively.
Screw shaft 3 rotatably supported by 5
3 and is attached to a movable member 36 made of an internally threaded member, and is configured to move up and down in conjunction with the rotation of the screw shaft 33.

These reading units 30, 30 each include a head arm assembly 31 and a head arm assembly swinging mechanism section 32 that swings the head arm assembly 31 by a required amount. Further, the head arm assembly swinging mechanism section 32 is provided with a pair of guide rollers 37, 37, which roll into contact with the guide shaft 38, which is provided parallel to the screw shaft 33, in a state in which it is sandwiched from both sides. This prevents the head arm assembly swinging mechanism section 32 itself from rotating about the screw shaft 33. On the other hand, the head arm assembly 31 is rotatably attached to the movable member 36 via a bearing 39, and the head arm assembly swing mechanism 32
The head arm assembly 31 is configured such that its head portion swings in the radial direction of the optical disk (in the direction of arrow B in FIG. 3).

Further, the head arm assembly 31 has a configuration as shown in FIG. That is, the reference numeral 45 in the figure is a head arm having a head 48 having a built-in objective lens 46 and a prism 47 that are movable by a lens actuator (not shown) at the tip thereof. It is held by a main member 49 attached to the main member 49. The base end of the head arm 45 is rotatably held via bearings 50 that are attached to four main members, and a drive shaft of a helad arm rotation motor 51 is connected to the midway part of the base end of the head arm 45. A driven gear 54 is attached which interlocks with the attached driving gear 52 via an intermediate gear 53.
The head 48 is configured to be able to rotate 180° in forward and reverse directions by driving the motor 51 so as to be able to face both sides of the optical disc 5. At this time, the center of rotation of the head arm 45 including the head 48 is aligned with the center of the optical axis of the laser beam a, so that the reading operation is not adversely affected in any way.

The main member 49 has a λ/4 state that corresponds to the extension line of the optical axis of the laser beam a of the herad arm 45.
A plate 55, a polarizing beam splitter 56, a collimator lens 57, and a laser oscillator 58 are arranged, and the laser beam a is guided to the optical disk 5, and the reflected light is split at 90 degrees by the polarizing beam splitter 56. It is designed to be deflected. A half prism 60, a light projecting lens 61, and a photodetector 62 are arranged in the direction of polarization of the reflected light by the polarizing beam splitter 56 to read information and detect track deviation. Further, a light projecting lens 63 and a photodetector 64 are arranged in the direction of reflection of the light reflected by the half prism 60 to detect out-of-focus.

On the other hand, the helad arm assembly swinging mechanism 32 has a configuration as shown in FIG. 5. In other words, −〇− Head arm assembly swing! 1Ita structure 32 is a holder
The holder 70 holds the near motor mechanism 71.
It is made up of.

As described above, the holder 70 is attached to the movable member 36 in a state where it is prevented from rotating by rolling the pair of guide rollers 37 and 37 to the guide shafts 1 to 38, and the linear motor mechanism 71 is Yokes 72a, 72b, 72G arranged at predetermined intervals, magnets 73a, 73b closely arranged on the inner surfaces of the yokes 72a, 72c located at both ends, and a bobbin loosely fitted to the yoke 72b in the center. 74 and a coil 75 wound around the bobbin 74. (See FIGS. 2 and 5) The coil 75 wound around the bobbin 74 is attached to the helad arm assembly 31 side,
The head arm assembly is configured to be rotated by a predetermined angle by applying a drive signal voltage to the coil.

Further, the light emitting element 77 and the light receiving element 78 are arranged in such a state that the optical axis intersects with the movement locus of the head arm assembly 31 which is rotated by a predetermined angle by the head arm swinging mechanism 32. , optical detection means 79 for detecting whether or not the head arm 45 has come out of the optical disc 5.
What is the state of the configuration? (See FIGS. 2 and 3) The head arm 45 prevents the reading units 1 to 30 from moving up and down while facing the optical disk 5,
The structure is such that collision between the two can be reliably prevented.

Further, a drive system for driving the screw shaft 33.33 for vertically moving the reading unit 30.30 has the following configuration. That is, as shown in FIG. 2, at the lower end of the screw shirts 1 to 33, there is a drive gear 81 attached to a drive shaft 80a of a motor 80 for moving the reading unit, and a driven gear interlocked via a toothed belt 82. 83 is installed. Then, the motor 80 is driven by a movement signal sent from a control section (not shown).
When the screw rotates in the forward or reverse direction, the screw shaft 33 rotates in a predetermined direction, and the reading unit 3
0 is configured to move by a predetermined amount in either the up or down direction (arrow C direction).

Further, the amount of rotation of the screw shaft 33 is detected by a timing desk 85 attached to the screw shaft 33 and a detector 86 attached to the lower frame 20, so that the reading unit 30 can be moved to a predetermined position. At the same time, the brake device 87 prevents inertial rotation of the screw shaft 33, thereby increasing stopping accuracy.

The rotation angle of the storage medium unit 6 is detected by a timing disk 7 attached to the drive shaft 4 and a detector 89 attached to the lower frame 20 via a holder 88. There is. (See FIG. 2) Further, 90+ shown in FIG.
91 shown in FIG. 2 are guide bodies that guide the storage medium unit 6 when it is inserted or removed.
1... are arranged at positions that do not interfere with the movement of the head arms 45, 45.

Next, the operation of the above configuration will be explained.

First, by operating the operating section 90, the optical disk handling mechanism section 3 becomes operable and connected to, for example, a CPU, a display device, a printer device, and the like.

Then, the storage medium unit 6 including the plurality of optical discs 5 starts rotating at a predetermined speed.

On the other hand, in response to an information search signal from a control section (not shown), one of the reading units 30 moves upward or downward (in the direction of arrow C in FIG. 2) and stops at a predetermined position. As the assembly 31 moves in the radial direction of the optical disc 5 (in the direction of arrow B in FIG. 3), the head 48 at the end of the head arm 45 faces the predetermined search information and starts a reading operation.

At this time, another reading unit 30 is in a standby state in advance to read the information of the next selected optical disc 5. Immediately after the reading operation of a predetermined information recording surface is completed, the next reading operation is started.

Furthermore, if the information recording surface of the optical disc 5 being read is adjacent to the information recording surface of the optical disc 5 to be read next, for example, the information recording surface on the bottom side of the optical disc 5 second from the top in FIG. When reading the information on the upper information recording surface of the third optical disc 5 from the top, the same reading unit 30 is used as is, and the head arm 45 is simply rotated 180 degrees to read the information. .

In addition, when replacing the information storage medium unit 6 for some reason, after opening the cover 2, move the arm 14 in the direction opposite to the arrow in FIG. 2 against the biasing force of the biasing body 17. By rotating, the holding member 13 is removed from the upper end of the drive shaft 4. Next, hold the handle 10 attached to the upper end of the information storage medium unit 6 and pull it upward.

It goes without saying that at this time, the head arms 45, 45 of both reading units 30, 30 are automatically retracted in advance to a position where they will not collide with the optical disk 5.

Further, both ends 4a, 4 of the drive shaft 4 of the storage medium unit 6
b has a tapered shape, and these both ends 4a, 4b
The tapered hole 12a of the driving member 12 and the holding member 13,
Since the storage medium unit 6 is held rotatably by being fitted and connected to each of the storage medium units 13a, it is extremely easy to install and remove the storage medium unit 6, and alignment can be performed automatically.

Further, the holding member 13 is connected to a support shaft 16 that is perpendicular to the drive shaft 4.
Since the holding member 13 is held by an arm 14 which is rotatable through the arm and is always biased in a predetermined direction (in the direction of the arrow), the presser member 13 is driven by rotating the arm 14 against the biasing force. It can be removed from the end of the shaft 4, making it extremely easy to attach and remove it from the information storage medium unit.

(Effects of the Invention) As explained above, the present invention includes a storage medium unit in which a plurality of optical disks are arranged at predetermined intervals on a drive shaft, and while rotating the storage medium unit 1 to ,
The configuration is such that a predetermined optical disk is selected and information processing is performed, and both ends of the drive shaft are tapered so that one fits into a drive member and the other fits into a tapered hole of a holding member, and the holding member is configured to be held by an arm that is rotatable through a support shaft that is perpendicular to the drive shaft and is always biased in a predetermined direction. Therefore, it is possible to hold and handle multiple optical discs in a short amount of time with a relatively simple and compact configuration without requiring a large device such as an Omil changer. This has the advantage that it is possible to provide an image information processing apparatus having a configuration that allows processing to be performed extremely easily.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention; FIG. 1 is an external perspective view of an image information processing device, FIG. 2 is a schematic side view showing the configuration of the desk handling mechanism section, which is the main part, and FIG. The figure is a plan view showing the arrangement of the reading unit with respect to the optical disk; FIG. 4 is a partially cutaway plan view of the reading unit's head arm assembly; FIG. 3 is a partially cutaway plan view of the moving mechanism. 4... Drive shaft, 4a... One end of drive shaft, 4b
...Other end of the drive shaft, 5.Optical disk, 6.
...Storage medium unit, 12...Driving member, 12
a... Taper portion, 13... Pressing member, 13a.
...Tapered portion, 14...Arm, 16...Spindle, 17...Biasing body, 30...Reading unit,
31... Head arm assembly, 32... Head arm assembly swinging mechanism section. Applicant's agent Patent attorney Takehiko Suzue Figure 1

Claims (1)

[Claims] An image in which a storage medium unit is provided with a plurality of optical disks arranged at a predetermined interval on a drive shaft, and a predetermined optical disk is selected and information processing is performed while rotating the storage medium unit. In the information processing device, both ends of the drive shaft are tapered, and one end is fitted into a drive member and the other end is fitted into a tapered hole of a holding member for coupling, and the holding member is connected to the drive shaft. An image information processing device characterized in that it is held by an arm that is rotatable through a support shaft that is perpendicular to the image information processing device and is always biased in a predetermined direction.