JPS61261846A - Image information processor - Google Patents

Abstract

PURPOSE:To facilitate the loading and unloading of an optical disk by increasing the value of a tape fitted in the lower driving member of a device which has plural optical disks fitted at intervals onto a driving shaft whose ends are both tapered and performing image processing on a desired optical disk while rotating the driving shaft. CONSTITUTION:Plural optical disks 5 are fitted onto the driving shaft 4 of an optical disk handling mechanism 3 which constitutes an image information processor with collars 8 between and a timing disk 7 is fitted at the lower end to constitute a storage medium unit 6. Both upper and lower ends of this driving shaft 4 are tapered, an arm 14 is fitted to the upper tapered part across a presser member 13, and a lower frame 20 is fixed to the lower tapered part 4a across a driving member 12. In this case, the diameter of a tapered hole 12a provided in the driving member 12 is increased and the diameter of the tapered part 4a is also made large matching with it. Thus, the insertion and extraction of the driving shaft 4 are facilitated to easily replace optical disks 5.

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 devices that use optical disks as storage media can greatly increase the amount of information that can be stored compared to magnetic image information processing devices that have been widely used in the past. 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 characteristics.

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 O1 to Changer. However, there are problems in that the mechanism becomes complicated, the device becomes larger, and it takes a relatively long time to replace it.

[Purpose of the invention]

The present invention has been made based on the above circumstances, and its purpose is to have a relatively simple and compact configuration that can handle multiple optical discs without the need for a large device such as an autochanger. To provide an image information processing device that can be handled in a short period of time, and in which an optical disk can be easily and reliably attached and removed.

[Summary of the invention]

In order to achieve the above-mentioned object, the present invention includes a storage medium unit 1 to which is formed by disposing a plurality of optical disks at a predetermined interval on a drive shaft. The optical disc is selected and information processing is performed, and both ends of the drive shaft are tapered, and one is connected to the drive member by fitting into the tapered hole of the holding member, and the other is connected by fitting into the tapered hole of the holding member. Additionally, the taper value of the tapered portion of the drive shaft that engages with the tapered hole of the drive member is set larger than the taper value of the tapered portion of the drive shaft that fits into the tapered hole of the holding member.

(Example 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 1-6 has both ends 4a and 4b tapered, and one end taper part (lower end taper part) 4a is connected to the tapered hole 12 of the drive member 12.
a and the other end taper part (upper end taper part)
4b is fitted into the tapered hole 13a of the holding member 13, so that the drive shaft 4 is held vertically and rotatably. In addition, the tapered hole 13a of the holding member 13
The taper value θ1 of the upper end tapered portion 4b of the drive shaft that fits into the
is the drive shaft 4 that engages with the tapered hole 12a of the drive member 12.
(e
l > θ2) is set. (See FIG. 6) Note that the taper value θ2 of the lower end tapered portion 4a of the drive shaft 4 that engages with the tapered hole 12a of the drive member 12 is set to the same level as the taper when installing a tool on a machine tool. Sufficient rotational force is transmitted.

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 so that its base end is always biased in a predetermined direction (in the direction of the arrow in FIG. 2) by a torsion spring 17 as a rotatable biasing body via a support shaft 16. 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 opposite direction of the arrow against the biasing force of the screw spring 17, and the holding member 13 can be removed from the upper end tapered portion 4b of the drive shaft 4 if necessary. It is now possible to do so. In this state, by holding the handle 10 and lifting it upward, the storage medium unit 1-6 can be pulled out of the apparatus main body 1 through an opening 19 formed in the upper frame 18.

On the other hand, the drive member 12 that holds the lower end tapered portion 4a of the drive shaft 4 has its support shaft portion 12b rotatably held by a bearing portion 21 attached to the lower frame 20, and the gear 25 , toothed belt 26, gear 2
The drive shaft 28a of the motor 28 for driving the storage medium unit is interlocked with the drive shaft 28a of the motor 28 for driving the storage medium unit via a power transmission system consisting of 7 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 mechanism section 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 31 is rotated by the action of the head arm assembly swinging mechanism 32. It is configured to swing in the radial direction of the optical disc (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 helad 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 driving 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 the laser beam 5 and the center of the optical axis of the laser beam a coincide with each other, so that the reading operation is not adversely affected in any way.

The main member 49 has a λ7/
A fourth plate 55, a polarizing beam splitter 5G, a -1 remeter 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 sent to the polarizing beam splitter 56 to
It is designed to deflect. Polarizing beam splitter 5
A half prism 60 DEG projecting lens 61 and a photodetector 62 are disposed in the direction of deflection of the light reflected by the lens 6, so as to read information and detect a 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 to detect focus blur.

On the other hand, the above-mentioned Herad arm assembly rocking Ps structure 32
The configuration is as shown in the figure. That is, the head arm assembly swinging mechanism 32 is composed of a holder 70, which is held by the holder 70, and a near morph mechanism 71.

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 into contact with the side shirt 1-38, and the linear motor mechanism 71 is , yokes 72a, 172b, 72c 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 74 loosely fitted into the yoke 72b at the center. and a coil 75 wound around this 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, the drive system for driving the screw shirts 1 to 33.33 for vertically moving the reading unit 30.30 is as follows.
The structure is as follows. That is, as shown in FIG. 2, the lower end of the screw shaft 33 has a drive gear 81 attached to the drive shaft 80a of the reading unit movement motor 80, and a driven gear interlocked with the drive gear 81 via the toothed bell 1-82. 83 is installed. Then, the motor 8 is driven by a movement signal sent from a control section (not shown).
0 rotates in the forward or reverse direction, the screw shaft 33 rotates in a predetermined direction, and the reading unit 30 moves up or down (direction of arrow C) by a predetermined amount.

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 6, and these guide bodies 91...
* is placed in a position that does not interfere with the movement of the head arm 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 CPIJ, 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, the tapered portions 4 at both ends of the drive shaft 4 of the storage medium unit 6
a, 4b are fitted into the tapered holes 12a, 13a of the driving member 12 and the holding member 13, respectively, and are held rotatably, so that the storage medium unit 6 can be attached and removed very easily. At the same time, alignment can be performed automatically. Further, as shown in FIG. 6, the taper value θ1 of the tapered portion 4b of the drive shaft 4 that fits into the tapered hole 13a of the holding member 13 indicates that the tapered portion of the drive shaft 4 that engages with the tapered hole 12a of the drive member 12 Since the taper value θ2 of 4a is set to be larger than θ2, the presser member 13 can be immediately removed by pulling it, making it easy to remove the presser member 13, and moreover, the rotational force of the drive member 12 is sufficiently transmitted to the drive shaft 4. In addition, when mating, it can be installed in a stable position just by placing it, and its operation is extremely easy.

〔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 selects a predetermined optical disk while rotating this storage medium unit. The drive shaft has a configuration in which both ends of the drive shaft are tapered, and are connected by fitting one end into a drive member and the other into a tapered hole of a holding member. The taper value of the tapered portion of the drive shaft that engages with the tapered hole of the drive member is set larger than the taper value of the tapered portion of the drive shaft that fits into the tapered hole of the drive member. Therefore, multiple optical discs can be handled with little waiting time despite having a relatively simple and compact configuration without the need for a large-scale device such as an autochanger.Moreover, the optical discs can be easily installed and removed. This has the effect of providing an image information processing device that can perform image information processing reliably.

[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 partially cutaway plan view of the helad arm assembly of the reading unit, and FIG. 5 is the heald arm assembly swing mechanism of the reading unit. FIG. 6 is a plan view partially cut away and is an explanatory diagram showing the tapered state of the drive shaft. 4... Drive shaft, 4a... Partial taper part of drive shaft,
4b... Tapered portion at the other end of the drive shaft, 5... Optical disk, 6... Storage medium unit, 12... Drive member, 12a... Tapered hole, 13... Holding member,
13a...Tapered hole, 30...Reading unit,
31... Head arm assembly, 32... Head arm assembly swinging mechanism section. Applicant's agent Patent attorney Takehiko Suzue Figure 6

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. The information processing device is configured such that both ends of the drive shaft are tapered and are coupled by fitting one end to the drive member and the other to the tapered hole of the holding member, and the tapered hole of the holding member. An image information processing device characterized in that a taper value of a tapered portion of a drive shaft that engages with a tapered hole of a drive member is set larger than a taper value of a tapered portion of a drive shaft that fits.