JPS61261847A - Image information processor - Google Patents

Abstract

PURPOSE:To simplify a device and to facilitate the loading and unloading of disks by fitting plural optical disks at intervals on a driving shaft whose ends are both tapered and performing image processing on a specific disk while the driving shaft is stopped temporarily in a rotary displacement state. CONSTITUTION:Plural optical disks 5 are fitted at intervals to the driving shaft 4 to constitute a storage medium unit 6, which is rotated to perform information processing on a specific optical disk 5. This unit 6 is constituted by fitting a timing disk 7 to the driving shaft 4, then fitting collars 8 and optical disks 5 alternately and an upper collar 9, and clamping them with a nut 11 with a handle 10. Further, the lower taper part 4a of the driving shaft 4 is fitted in the tapered hole 12a of a fitting driving member 12 and a presser member 13 is fitted to the upper tapered part to allow the driving shaft 4 to rotate. Further, an arm 14 is coupled with the presser member 13 and the driving shaft 4 is stopped temporarily and intermittently with a torsion spring 17 provided to the arm.

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 background of the invention and its problems]

Recently, image information processing using optical disks as storage media! ji
[can greatly increase the information storage capacity compared to conventionally widely used magnetic image information processing devices, and
In addition to providing an extremely good and stable playback condition with little noise, the storage condition is extremely stable as it is not easily affected by external influences, and information processing can be performed in a non-contact manner, preventing damage to the storage medium and information processing head. It is becoming widely used because it has the advantage of not having any negative effects such as.

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 devices of this type that can handle multiple optical discs, information processing is performed by resetting the optical discs as information storage media one by one using an autochanger. 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 has been made based on the above-mentioned circumstances, and an object thereof is to have a relatively simple and compact structure that does not require large equipment such as an O-1 to a changer, and yet allows multiple sheets to be printed. An object of the present invention is to provide an image information processing device that can handle optical disks with little waiting time, and has a structure that allows attachment and removal of optical disks to 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 configuration is such that a tapered portion at one end of the drive shaft is fitted into a tapered hole of a driving member, and a tapered portion at the other end is fitted into a tapered hole of a holding member, and the tapered portion of the drive shaft is fitted into a tapered hole of a holding member. The presser member is held by an arm that is rotatable and always urged in a predetermined direction by a biasing body, and this arm is rotated against the biasing force of the biaser to remove the presser member from the drive shaft. In addition to being configured to be removable, the arm holding means is provided to hold the arm in a rotationally displaced state against the biasing force of the biasing body.

[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 this 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 12ak of the drive member 12, and the other end (upper end) 4b is fitted into the tapered hole 13a of the holding member 13. By doing so, 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 biased in a predetermined direction (in the direction of the arrow in FIG. 2) by a torsion spring 17 as a biasing body. The drive shaft 4 is pressed with a constant force to keep the rotation of the information storage medium unit 6 stable.

Further, the arm 14 is rotatable in the direction opposite to the arrow direction against the biasing force of the torsion 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 belt 26, gears 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 30, 30 as information processing units are arranged at symmetrical positions.

These reading units 30.30 are attached to a movable member 36 made of an internally threaded member screwed onto a screw shaft 33 rotatably supported by bearings 34.35 provided on both the upper and lower frames 18.20, respectively. It 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 are in rolling contact with a guide shaft 38 provided parallel to the screw shaft 33 sandwiched therebetween from both sides. , the head arm assembly swing 111M portion 32 itself is prevented 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 a bearing 50 provided on the main member 49, and a drive shaft of a helad arm rotation motor 51 is attached to the midway part of the base end. A driven gear 54 that interlocks with the drive gear 52 via an intermediate gear 53 is attached. The head 48 is configured to be able to rotate 180 degrees in forward and reverse directions by driving the motor 51 so as to be able to face both sides of the optical disk 5. At this time, the head arm 4 equipped with the head 48
The center of rotation of 5 and the center of the optical axis of laser beam a coincide with each other, and there is no adverse effect on the reading operation.

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 deflected by 90 degrees by the polarizing beam splitter 56. It looks like this. Polarizing beam splitter 56
A half prism 60 DEG projecting lens 61 and a photodetector 62 are arranged in the direction of deflection of the reflected light, so as to read information and detect a 1 to 1 rack deviation. Furthermore, 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, and are arranged in a J: shape to detect defocus.

On the other hand, the helad arm assembly swinging mechanism 32 has a configuration as shown in FIG. 5. That is, the head arm assembly swing mechanism 32 includes the holder 70 and the holder 7.
0 and a near motor mechanism 71.

As described above, the holder 70 is attached to the movable member 36 in a rotation-prevented state by rolling the pair of guide rollers 37 and 37 onto the guide shaft 38, and the linear motor mechanism 71 is rotated in a predetermined manner. yokes 72a, 72b, 72C1 arranged at intervals of 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.
has been configured. (See FIGS. 2 and 3) The head arm 45 is configured to prevent the reading unit 30 from moving up and down while facing the optical disc 5, thereby reliably preventing collision between the two.

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, the lower end of the screw shaft 33 has a drive gear 81 attached to a drive shaft 80a of a motor 80 for moving the reading unit, and a driven gear 8 that interlocks with the drive gear 81 via a toothed belt 82.
3 is now installed. Then, the motor 80 rotates in the forward or reverse direction in response to a movement signal sent from a control section (not shown), thereby rotating the screw shaft 33 in a predetermined direction, causing the reading unit 30 to rotate in a predetermined direction.
is configured to move by a predetermined amount in either the up or down direction (in the direction of arrow C).

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. 1 is an operating section provided at the front end edge of the cover 2 for opening and closing the upper part of the device main body 1.
91 shown in FIG. 2 are guide bodies that guide the insertion and removal of the storage medium unit 1-6, and these guide bodies 91.
. . are arranged at positions that do not obstruct the movement of the head arms 45, 45.

131 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. The assembly 31 moves in the radial direction of the optical disk 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 a reading operation is started.

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. .

Also, for some reason, information storage media units 1 to 6 may
When replacing the arm 14, open the cover 2, then replace the arm 14.
The holding member 13 is removed from the upper end of the drive shaft 4 by rotating it in the opposite direction of the arrow in FIG. 2 against the urging force of the urging member 17. 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 1-6 is rotatably held by being fitted and connected to each of the storage medium units 13a, it is extremely easy to attach and remove the storage medium unit 1-6, and the 8-insertion 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 14 is configured to be held by the 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 111 against the biasing force. It can be removed from the end of the shaft 4,
The information storage medium unit 6 can be attached and removed very easily.

Further, as shown in FIG. 6, an arm holding means 95 is disposed at the pivot portion of the arm 14, and holds the arm 14 in the direction of the arrow (reversely) against the urging force of the torsion spring 17 serving as the urging body. When the arm 14 is at a certain angle or more in the direction of the arrow
What is the configuration that keeps it in this state? In this state, hold the storage media 1 to 6 by the handle 10.
It will be taken out in the direction of the arrow.

The arm holding means 95 includes a recess 96 formed in the pivot portion of the arm 14, a ball 9 as an engaging protrusion that is constantly biased to elastically engage with the recess 96 by a spring 97. It consists of a titent mechanism 99 equipped with. Also, if you want to release the holding state of the arm 14,
Just apply a slightly stronger force in the opposite direction.

Although the arm holding means 95 is constructed from the detent mechanism 99, the present invention is not limited thereto. It may be configured such that the arm 14 is connected to the position and stably held beyond the dead center when the arm 14 rotates by a predetermined amount. In this case, the spring can also serve as a biasing body that constantly biases the arm in a predetermined direction.

In addition, it goes without saying that the present invention can be modified in various ways without departing from the gist of the invention.

〔Effect of the invention〕

As explained above, 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 a predetermined optical disk is selected while rotating the storage medium unit. The drive shaft has a configuration in which a tapered portion at one end of the drive shaft is fitted into a tapered hole of a drive member, and a tapered portion at the other end is fitted into a tapered hole of a presser member, and the presser foot The member is held by an arm that is rotatable and always urged in a predetermined direction by a biasing body, and the holding member is removed from the drive shaft by rotating and displacing this arm against the biasing force of the biasing body. In addition, an arm holding means is provided to hold the arm in a rotationally displaced state against the biasing force of the biasing body. Therefore, it is possible to handle multiple optical discs with little waiting time despite the relatively simple and compact configuration, without requiring a large-scale device such as an autochanger.Moreover, it is extremely easy to install and remove optical discs. This has the advantage that it is possible to provide an image information processing device configured to perform the following operations.

[Brief explanation of the drawing]

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 plan view showing the head arm assembly of the reading unit with one end cut away, and FIG. 5 is a plan view showing one end of the head arm assembly swing mechanism of the reading unit. FIG. 6, which is a cutaway plan view, is an explanatory diagram illustrating the state when the storage medium unit is taken out. 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... Tapered hole, 13... Pressing member, 13a.
...Taber hole, 14...Arm, 16...Spindle, 17...Biasing body, 30...Reading unit,
31... Head arm assembly, 32... Head arm-assembly swinging mechanism section, 95... Arm holding means, 96... Recess, 98... Engaging protrusion, 99...
... Deten I-if structure.

Claims (3)

[Claims] (1) A storage medium unit including a plurality of optical disks arranged at a predetermined interval on a drive shaft is provided, and information processing is performed by selecting a predetermined optical disk while rotating the storage medium unit. An image information processing device comprising: a drive member that engages with and holds the tapered portion at one end of the drive shaft; a presser member that engages and holds the taper portion at the other end of the drive shaft; and the presser member. an arm that is rotatable to be attached to and detached from the drive shaft; a biasing member that always biases the arm so that the holding member holds the drive shaft; An image information processing device comprising arm holding means for holding the arm in this state when the arm is opened by a certain angle or more against an urging force. (2) the arm holding means includes a recess formed in the arm;
2. The image information processing apparatus according to claim 1, further comprising a detent mechanism including an engaging protrusion that is always biased so as to elastically engage the recess. (3) the arm holding means has one end connected to the arm and the other end connected to a position beyond the pivot point of the arm;
2. The image information processing device according to claim 1, further comprising a spring that stably holds the arm beyond its dead center when the arm rotates by a predetermined amount.