JPH08235721A - Discoid recording medium loading device - Google Patents

Abstract

PURPOSE: To position a cartridge with high accuracy by making the pressing state of the cartridge housing a discoid recording medium and a base and making a positioning hole larger than the length of a projection to be inserted into this hole in size. CONSTITUTION: When the cartridge (CG) 1 housing the discoid recording medium is inserted into the device from an opening part 201, the CG 1 is slid on a guide roller 203 of a roller frame 204 and is inserted into a CG carrier body 2. At this time, a roller 212 of a CG pressor 210 is pressed upward by the upper surface of the CG 1 against elastic force of an elastic arm 211, and the CG 1 is inserted. When the CG 1 is completely pushed into the carrier body 2, the roller 212 is dropped into a positioning recessed part in the upper surface of the CG 1 to lock the CG 1. Simultaneously, an elastic lock member on the side of the carrier body 2 is engaged with a notch 307 in a CG side surface, thus completing positioning and fixing the CG 1 in the carrier body 2. On the other hand, CG positioning pins 701 erected on pedestals 7 of the device are provided in their positions corresponding to positioning holes 303-306 of the CG 1, and the holes 303-306 are made larger than the length of the pins 701 in size, and hence the CG 1 is positioned with high accuracy.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for moving a cartridge containing a disk-shaped recording medium, such as an optical disk or a magneto-optical disk, and coupling the disk-shaped recording medium to a rotary drive such as a motor. It is about improvement.

[0002]

2. Description of the Related Art A technique for moving a cartridge and connecting a disk-shaped recording medium in the cartridge to a rotary drive is disclosed in, for example, Japanese Patent Laid-Open No. 59-154669. This publication describes a device for attaching and detaching a cartridge containing a disk-shaped magnetic recording medium which is a disk-shaped recording medium. According to this technique, after a cartridge (reference numeral 56 in the above publication) is set at a predetermined position of a holder (reference numeral 47 in the above publication) as a cartridge holding body,
The motor is coupled to the magnetic recording medium by moving the holder in a direction perpendicular to the medium surface of the magnetic recording medium.

Here, when the motor and the magnetic recording medium are coupled to each other, an elastic member such as a spring (reference numeral 39a in the above publication,
The holder is pressed against a support substrate (reference numeral 26 in the above publication) in a direction substantially perpendicular to the medium surface using the force generated from 39b) (the eighth publication in the above publication). (See Figure B).

[0004]

However, the above publication does not explain that the above-mentioned pressing force that is substantially perpendicular to the medium surface acting on the holder also acts on the cartridge. Therefore, if the cartridge is in a free state inside the holder and only the magnetic recording medium in the cartridge is coupled to the rotation drive device in such a state, the cartridge may be displaced due to vibration of the motor or the like during reproduction of information. However, there is a drawback that accurate information cannot be reproduced in such a state. The technology disclosed in Japanese Utility Model Laid-Open No. 59-42568 (full text specification and drawings) is a solution to this drawback. In this publication, when the rotation drive device (reference numeral 7 in the publication) and the disk-shaped recording medium are combined, the cartridge (reference numeral 2 in the publication) is pressed against the positioning pin (reference numeral 8) corresponding to the base. Has become. However, the size of the hole in which the positioning pin 8 formed in the disk case 2 disclosed in Japanese Utility Model Laid-Open No. 59-42568 is inserted in the direction perpendicular to the medium surface is only the thickness of the disk case 2. In such a configuration, there is a drawback that the disc case 2 and the turntable 7 cannot withstand repeated connection and disconnection many times.

It is an object of the present invention to provide a disk-shaped recording medium mounting device that solves the above drawbacks.

[0006]

DISCLOSURE OF THE INVENTION A disk-shaped recording medium mounting apparatus of the present invention is a disk-shaped recording medium housed in a cartridge and is connected to a rotary drive unit fixed to a base. In a recording medium mounting device, a first unit perpendicular to a medium surface of the disc-shaped recording medium is provided.
In the direction of, the cartridge holding member holding the cartridge and the base are relatively moved to couple the disc-shaped recording medium and the rotation drive device. When coupled with a drive device, protrusions that extend substantially parallel to the first direction and are spaced apart from the base are inserted into the positioning holes formed in the cartridge, and So that the base is in a pressed state,
Further, the dimension of the positioning hole in the first direction is
It is characterized in that it is configured to have a relationship larger than a length dimension of the protrusion inserted into the positioning hole in the first direction.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to the drawings. 1 and 2 are partial cross-sectional front views showing the construction of the main part for explaining the operation of the transport mechanism of the cartridge accommodating the disk of the present invention, and FIG. 3 is a side view thereof. Reference numeral 1 denotes a cartridge containing a disk, and its bottom view is shown in FIG. In FIG. 4, reference numeral 301 denotes an insertion slot for a recording / reproducing head; 302, a disc drive turntable insertion slot in the apparatus; 303 to 306, positioning holes provided at four corners on the bottom surface of the cartridge 1; Notches formed on both sides of the cartridge are used for positioning with respect to the cartridge carrier when the cartridge is carried as described later. In addition,
Although not shown in this figure, the upper surface of the cartridge 1 is also provided with a concave portion for positioning and fixing with respect to the transport body at the time of transport.

In FIGS. 1 to 3, 2 is a cartridge carrier provided inside the cartridge insertion port of the recording / reproducing apparatus, 3 is a clamp guide plate fixed to the machine frame of the apparatus, and 4 is a cartridge carrier. A drive mechanism comprising a link lever for the cartridge, 5 is a conveyance guide groove of a cartridge formed on a side plate of the apparatus, 6 is a side plate of the apparatus, 7 is a base of the apparatus, and 8 is a disk clamp apparatus.

Hereinafter, the configuration of each section will be described in more detail. The cartridge carrier 2 is a frame provided inside the cartridge insertion opening (not shown) of the recording / reproducing apparatus as described above, and the cartridge 1 is inserted from the cartridge insertion opening 201 and held to hold it in a predetermined position. The sheet is conveyed to the position (the position shown in FIG. 2). A disc clamp device 8 is provided on the upper plate 202 of the cartridge carrier 2, and a roller frame 204 having a plurality of cartridge insertion guide rollers 203...
Is provided. As shown in FIG. 3, this carrier support frame 205
The angled leg portion 206 formed by bending 02 is screwed to one, and the roller 203 of the roller frame 204 supports the cartridge. In addition, the transport support 20
5 is provided with a conveyance guide roller 207,
Of the transport guide roller 2
A long groove 209 formed in the link lever of the drive mechanism 4 is engaged with the interlocking shaft 208 that supports 07.

Reference numeral 210 denotes the upper plate 20 of the cartridge carrier 2.
With the cartridge holder attached to No. 2, the roller 212 provided at the tip of the elastic arm 211 presses the concave portion for positioning and fixing provided on the upper surface of the cartridge 1. The disk clamp 8 is pivotally attached to a pivot 803 of a clamp support plate 802 of a clamp table 801 provided on the upper plate 202 of the cartridge carrier 2.

A clamp head 805 is attached to the tip of the clamp support arm 804 and a clamp holder 806.
It is supported by loose fit. Also, the clamp support arm 80
The other end of 4 is provided with a cylindrical clamp actuating end 807. The clamp operating end is in sliding contact with the lower surface of the clamp guide plate 3 described above. The clamp guide plate 3 holds the clamp operating end 8 of the disc clamp 8 while the cartridge carrier 2 is in the horizontal carrier part of the guide groove 5 described later from the position before the cartridge is inserted in FIG.
07 is held, the clamp support arm 804 is held in a left-handed state, and the clamp head 805 is held in a non-operation position.

Reference numeral 5 denotes the above-described guide groove, which is formed on the side plate 6 of the apparatus, and forms a horizontal transport portion 501 and a vertical descending transport portion 502 in which a transport guide roller 207 interlocked with the cartridge transport body 2 by an interlocking shaft 208 is engaged. doing. 40
Reference numeral 1 denotes a link lever that constitutes a part of the drive mechanism of the cartridge transporting body, and is a linking shaft of the cartridge transporting roller 207 that fits in the guide groove, and a long groove 209 at the tip thereof.
Are to be engaged. Reference numeral 402 denotes a drive shaft connected to a power source (not shown). This link lever 4
The drive mechanism by 01 may be one set of link levers in principle, but two sets are provided in this embodiment from the viewpoint of the stability of the cartridge carrier 2 and the distribution of the driving force.

Reference numeral 701 denotes a cartridge positioning pin implanted in the base (fixing portion) 7 of the apparatus, which is provided at positions corresponding to the positioning holes 303 to 306 of the cartridge 1 shown in FIG. A vertical positioning member 702 of the cartridge 1 is provided at a part of the vertical positioning member 702. The vertical positioning member 702 may be a step formed integrally with the positioning pin 701 itself. Thus, the horizontal position and the vertical position of the cartridge 1 are regulated by these pins. The positioning height of the vertical positioning member 702 that regulates the vertical position is determined by the turntable 70 of the apparatus.
3 is designed to be lower than the mounting surface of the disk-shaped recording medium 9 in FIG. 3 by the distance obtained by adding the thickness of the bottom plate of the cartridge 1 to the gap between the recording medium 9 and the bottom surface of the cartridge 1. The normal position of the disc as shown can be set.

The operation of the cartridge transport positioning mechanism of the present invention will be described below with reference to the drawings. First, the cartridge 1 containing the disk-shaped recording medium 9 shown in FIG.
Is inserted in the direction of the arrow from the cartridge insertion opening 201 of FIG. 1 with the surface shown in FIG. 4 facing down, the cartridge 1 slides on the cartridge insertion guide roller 203 provided on the roller frame 204. Carrier 2
Is inserted into.

At this time, on the upper surface of the cartridge 1, the roller 212 of the cartridge holder 210 is attached to the elastic arm 2 thereof.
It can be pushed up against the elasticity of 11 and can be inserted without play. Eventually, when the cartridge 1 is completely pushed into the cartridge carrier 2, the cartridge holding roller 212 on the upper surface of the cartridge falls into a positioning recess provided on the upper surface of the cartridge, and locks the cartridge 1. At the same time, although not shown, the elastic locking member provided on the side of the cartridge carrier 2 engages with the notch 307 on the side of the cartridge, so that the position fixing of the cartridge in the carrier is completed.

When the insertion and fixing of the cartridge is completed, a sensing switch of a well-known means (not shown) is actuated, and after a predetermined time (time of confirmation of insertion), a power source (not shown) is turned on to form the link lever 401. The drive mechanism starts to operate. When the drive mechanism starts operating, the two sets of link levers 401 swing leftward about the shaft 402. Accordingly, the cartridge carrier 2 is interposed between the guide roller 207 and the interlocking shaft 208 of the cartridge carrier support frame 205 fitted in the long groove 209 of the end of the link lever 401.
Moves to the left in FIG. 1 along the horizontal transport portion of the transport guide groove 5.

When the conveyance guide roller 207 reaches the left end of the guide groove 5, that is, the position of the vertically descending conveyance section 502, the cartridge conveyance body 2 moves the vertically descending conveyance section 5 of the guide groove 5.
Start descending along 02. Then, first, the cartridge 1 descends together with the cartridge carrier 2 while the positioning holes 303 to 306 of the cartridge are fitted to the positioning pins 701 to perform horizontal positioning. At the same time, the clamp support arm 804 of the clamp 8 starts rotating rightward as the cartridge transport body 2 descends.

In order to form a groove for guiding the conveying guide roller 207 in a direction perpendicular to the medium surface, the side plate 6 has a vertical guide portion 601 formed by the side surface of the side plate 6.
(Consisting of a linear elongated surface). When the transport guide roller 207 is guided by the groove formed by the vertical guide portion 601, and is lowered near the lower end of the vertically descending transport portion 502, the cartridge transport body 2 is lowered to guide the cartridge 1 guided by the positioning pin 701.
Is regulated in the descending position by the stepped portion of the vertical positioning member 702 of the pin 701, and the drive mechanism stops its operation in response to a signal from a transport body movement end detection circuit (not shown). At this time, the transport guide roller 207 is not in contact with the side plate 6 that is a member that forms a groove in the direction perpendicular to the medium surface in the direction perpendicular to the medium surface. That is, in FIG. 2, the surface perpendicular to the paper surface of the conveyance guide roller 207 and the curved portion 602 which is the lower end of the groove are in a non-contact state in the direction perpendicular to the medium surface. Therefore, the conveyance guide roller 207 integrated with the interlocking shaft 208 is not pressed against the side plate 6 (more specifically, the curved portion 602) corresponding to the base in a direction perpendicular to the medium surface.

At this time, the disc-shaped recording medium 9 in the cartridge 1 has a predetermined relationship between the height of the disc mounting surface of the turntable 703 and the vertical positioning member 702 of the positioning pin 701, as described above. As shown in FIG. 2, the cartridge 1 is supported by a turntable with a gap in substantially the center thereof. At the same time, the clamp head 805 supported by the clamp holder 806 at the tip of the clamp support arm of the disc clamp 8 that is rotated rightward as the cartridge transport body 2 descends causes the turntable 70 to rotate.
3. The disk 9 fitted to the central spindle guide 704 is pressed from above and clamped.

Reference numerals 808 and 809 denote disk holders and magnets provided on the clamp head, respectively. In this way, the transporting and positioning operations of the cartridge 1 are completed, and after performing the necessary recording and reproducing operations on the recording medium, the drive mechanism 4 including the link lever 401 starts operating again by operating an eject button (not shown). This time, by swinging (clockwise) the link lever 401 in the opposite direction, the cartridge transport body 2 reversibly moves and returns to the state of FIG.

[0021]

According to the disk-shaped recording medium mounting apparatus of the present invention, the disk-shaped recording medium mounted inside the cartridge is connected to the rotation driving device fixed to the base. In the apparatus, the disc-shaped recording medium and the rotary drive are relatively moved in a first direction perpendicular to the medium surface of the disc-shaped recording medium by relatively moving the cartridge-holding body holding the cartridge and the base. A device for connecting the disk-shaped recording medium and the rotary drive device, the projections extending substantially parallel to the first direction and spaced apart from each other on the base. The cartridge is inserted into a positioning hole formed in the cartridge, and the cartridge and the base are brought into a pressed state. Dimensions for direction is, because characterized in that it is constituted by the said first direction about the length dimension larger relationship than the protrusions to be inserted into the positioning hole, the present invention has the following advantages. Since the cartridge for storing the disk-shaped recording medium is accurately and firmly held at the predetermined base position, the disk-shaped recording medium is quickly and accurately coupled to the rotary driving device, so that the disk-shaped recording medium is stable. The rotation is ensured, and as a result, there is an advantage that highly accurate information reading can be expected with an extremely simple structure. Further, since the dimension of the positioning hole in the first direction is configured to be larger than the length of the projection inserted in the positioning hole in the first direction,
There is an advantage that highly accurate positioning of the cartridge can be expected even for many uses.

[Brief description of drawings]

FIG. 1 is a partial cross-sectional view of a main part for explaining an operation of a transport mechanism of the present invention.

FIG. 2 is a partial cross-sectional view of a main portion for explaining the operation of the transport mechanism of the present invention.

FIG. 3 is a side view of each of FIGS.

FIG. 4 is a schematic plan view of a cartridge used in a recording / reproducing apparatus using the transport mechanism of the present invention.

[Explanation of symbols]

 1 Cartridge 2 Cartridge Conveyor 3 Clamp Guide Plate 4 Drive Mechanism 5 Guide Groove 6 Side Plate 7 Device Base 8 Disc Clamp 9 Disc Recording Medium 401 Link Lever 501 Horizontal Conveying Section 502 Vertical Descending Conveying Section 701 Positioning Pin 702 Vertical Positioning Member 703 Turntable 805 Clamp head 807 Clamp operating end 808 Disc holder

Claims (1)

[Claims] 1. A mounting device for a disc-shaped recording medium, wherein a disc-shaped recording medium housed inside a cartridge is coupled to a rotation drive device fixed to a base, wherein a medium surface of the disc-shaped recording medium is The disc-shaped recording medium and the rotation drive device are coupled to each other by moving the cartridge holding body holding the cartridge relative to the base in a first direction perpendicular to the disc-shaped recording medium. When the recording medium and the rotation driving device are combined, a protrusion extending substantially parallel to the first direction and spaced from the base is inserted into a positioning hole formed in the cartridge. At the same time, the cartridge and the base are brought into a pressed state, and the dimension of the positioning hole in the first direction is inserted into the positioning hole. A mounting device for a disk-shaped recording medium, wherein the protrusion is formed so as to have a relationship larger than a length dimension of the protrusion in the first direction.