KR0123835Y1 - Disk cartridge - Google Patents

Abstract

The present invention relates to a disc cartridge for interchangeably accommodating a disc-shaped recording medium such as an optical disc, a magneto-optical disc, etc., and a cartridge body for rotatably accommodating the disc-shaped recording medium, the main surface extending over the recording medium. A cartridge body having an opening in a main surface thereof for exposing a signal recording surface of a disc-shaped recording medium accommodated therein to an outside, and an insertion and exit of a disc-shaped recording medium on a side orthogonal to the main surface; An insert-opening and closing member having a pivot portion at its first end side for opening and closing the inserting opening and pivoting at one end, and having an elastic arm portion at its second end side, wherein the elastic arm portion is disposed at the other end side of the cartridge body. And an insertion and exit opening and closing member having a locking click engaged with the locking portion, and the insertion and exit opening and closing member are provided at the pivot portion. By releasing engagement between the pivot part and the cartridge body when turning over a predetermined range, opening and closing operation of the insertion / exit opening / closing member can be easily performed, and the cartridge body can be safely and securely supported, and the damage can be surely secured. There is an effect that can be prevented.

Description

Disc cartridge

The present invention relates to a disc cartridge for interchangeably accommodating a disc-shaped recording medium such as an optical disc and a magneto-optical disc.

The present invention provides an insertion and discharging outlet for enabling the exchange of the disc-shaped recording medium in a cartridge body for storing a disc-shaped recording medium such as an optical disc and a magneto-optical disc, while being pivotally supported on the cartridge body via a pivot part. And a disc cartridge provided with an insertion / exit opening / closing member for opening / closing the insertion / exit opening, wherein the cartridge body is provided with an elastic arm portion provided at the distal end with a locking click attached to the locking portion provided on the cartridge body. By providing a position regulating portion engaged with a part of the opening and closing member, the opening and closing operation of the opening and closing member can be easily performed, the cartridge body can be securely and securely locked, and the damage can be reliably prevented.

Conventionally, discs such as optical discs capable of recordable recording have been used as disc-type recording media. This type of disc writes an information signal that is damaged when a finger touches and attaches dust or the like to the signal recording surface when it is attached to or detached from a recording and / or reproducing apparatus, or is damaged by direct contact with a part of the apparatus such as a loading mechanism. And the recording and / or reproducing apparatus, as it is stored in the cartridge, for the main purpose of preventing read errors.

As described above, in a disc cartridge configured to be mounted in a recording and / or reproducing apparatus in a state where a disc is stored in a cartridge, a plurality of disc cartridges can be used for effective use of the cartridge and to enable replacement of the disc stored as needed. Disc swapping types have been proposed in which hawk discs can be freely exchanged and mounted in the recording and / or reproducing apparatus.

As a disc cartridge of this kind, the applicant of the present application is configured as described in the specification and drawings of Japanese Patent Application Laid-Open No. 63 (1988) 57970, or as described in the specification and drawings of Japanese Patent Application No. 63 (1988) 86810. I suggest that. Disc cartridges described in the specification and drawings of these applications are provided with an insertion / exit opening / closing cover on a disc insertion / exit part provided on the rear side opposite to the front side on which the shutter of the cartridge body accommodating the disc is mounted. By opening, the disk can be replaced. The opening and closing cover is formed to form an L-shaped cross-section so as to close the disc insertion port formed from the rear upper surface of the cartridge body to the rear surface, and pivot pins on the rear wall of both sides of the cartridge body at both sides with respect to the cartridge body. And a pivot by engagement with the engaging portions, and are rotatably mounted in a direction orthogonal to the plane of the cartridge body. In the inserting and closing cover, the engaging recess is disposed on the lower inner surface of the rear surface, and when the disk insertion opening is closed, the engaging recess locks the cartridge body by engaging the engaging protrusion projecting to the rear edge of the cartridge body. do.

According to the disc cartridge configured as described above, the disc can be freely exchanged by opening and closing the opening / closing cover, and recording and / or similar to a normal disc cartridge by closing the disc insertion opening with the opening / closing cover. It is possible to attach to a playback apparatus.

The disc cartridge insertion and closing cover of the above-described disc cartridge is pivotally supported by the cartridge body via both pivot portions, so that when the engaging portion is disengaged from the engagement protrusion of the cartridge body to open the cover, both pivots are opened. The pressing force is applied to the flat portion near the center of the section. As a result, the upper surface center portion of the opening / closing cover and the upper surface of the edge around the disc insertion port of the cartridge body are largely bent into the cartridge. In this way, when the insertion / exit opening / closing cover or the cartridge body is bent into the cartridge, the disc storage space in the cartridge body may be narrowed, which may damage the disk stored therein. In addition, the insertion / extraction cover and the cartridge body are bent, which causes deformation of the entire disc cartridge and prevents the smooth mounting operation of the recording and / or reproducing apparatus, and also with the cartridge when the disc is rotated. There is a fear of causing contact and damaging the disc.

Thus, the present invention prevents unnecessary force from being applied to the opening / closing member or the cartridge body during opening / closing operation of the insertion / exit opening / closing member for opening / closing the disk insertion port, and prevents warpage or deformation of the cartridge and the cartridge body. At the same time, it is proposed to provide a disc cartridge which can be easily opened and closed operation of the opening and closing member, and can guarantee a stable cover closed state.

1 is an exploded perspective view of a disc cartridge according to the present invention.

2 is an overall perspective view of the disc cartridge.

3 is a plan view thereof.

4 is its bottom view;

5 is a partially enlarged perspective view showing the disc insertion side of the cartridge body;

Fig. 6 is a partially broken bottom view of the disk insertion opening in an open state;

7 is a cross-sectional view showing a pivot portion of the insertion and exit opening and closing member.

Fig. 8 is a partially broken bottom view of a disk insertion outlet in a closed state;

Fig. 9 is a partial bottom view showing the unlocked state of the locking click by pressing the elastic arm piece.

Fig. 10 is a sectional view showing a drawing state from an engaging recess of the pivot pin.

* Explanation of symbols for main parts of the drawings

1: cartridge body 4: optical disc

9: Shutter 20: Disc insertion exit

21: insertion and exit opening and closing member 27, 28: pivot pin

29,30: Engagement required part 32: Stopper

33: Click click 34: Elasticity rock part

35: engagement section 36: position control section

The disc cartridge of the present invention is a cartridge body for rotatably accommodating a disc-shaped recording medium, which has a main surface extending over the recording medium and a signal recording surface of the disc-shaped recording medium accommodated therein. A cartridge body having an opening in the main surface and an insertion / exit of a disc-shaped recording medium on a side orthogonal to the main surface, and a pivot on the first end side for opening and closing the insertion / exit by being pivoted at one end of the insertion / exit of the cartridge body; And an inserting / opening / closing member having an elastic arm portion at a second end side thereof, wherein the elastic arm portion is formed with an inserting / opening / closing member having a locking click engaged with a locking portion disposed at the other end side of the cartridge body. The pivot portion has a release for releasing engagement between the pivot portion and the cartridge body when the insertion / extraction opening and closing member rotates over a predetermined range. It characterized in that the stage is disposed.

The disc cartridge according to the present invention is a disc insertion outlet which is inserted into the cartridge body by inserting / opening opening / closing member supported on the cartridge body through the pivot part, and rotated to a plane parallel to the plane of the cartridge body with the pivot part as the center. Open and close.

When the disc insertion port of the cartridge body is closed, the opening / closing member is engaged with the locking portion provided at the distal end of the elastic arm portion on the other end side facing the pivot portion at the locking portion provided on the cartridge body, and the pivot portion is installed. The position regulating section provided on one end side is engaged with and locked to a part of the cartridge body.

In addition, the insertion / exit opening / closing member in the state where the disk insertion opening is closed has the lock of the cartridge body by releasing the engagement from the locking portion of the cartridge body of the locking click at the tip by bending the elastic arm portion to release the lock of the cartridge body. It becomes rotatable to open the insertion outlet.

Next, specific examples of the present invention will be described with reference to the drawings.

1 and 2, the disc cartridge according to the present invention, the upper half (2) and the lower half (3) formed in a substantially flat rectangular shape formed by molding a synthetic resin, for example, a mold, butt to each other are coupled to each other In the cartridge body 1, a disc-shaped recording medium, for example, an optical disc 4 capable of recordable recording, is rotatably housed. Then, from the center of the upper half 2 and the lower half 3 constituting the cartridge body 1 to the front branch direction, the chucking portion provided in the center of the optical disc 4 accommodated therein is faced to the outside, and the optical disc An opening faced by the information signal write-out means, such as an optical pickup, which faces the signal recording surface (4) outward and writes an information signal to the optical disc 4, and reads out the written information signal. ) And (8) are arranged in a substantially rectangular shape.

In the cartridge body 1, a shutter 9 for opening and closing the openings 7 and 8 is slidably mounted. The shutter 9 is formed by bending a metal plate such as a stainless plate, and the first closed surface portion 9a for closing the opening 7 on the upper half 2 side and the opening 8 on the lower half 3 side. ) And a connecting piece portion 9c for connecting the first and second closing surface portions 9a and 9b to the second closing surface portion 9b for closing). In the shutter 9 thus formed, as shown in FIGS. 2, 3 and 4, the first and second closed surface portions 9a and 9b are formed of the upper and lower half portions 2 and 3. It extends from the front side of the cartridge body 1 to the outer surface side so that it extends on the opening part 7 and 8 arrange | positioned at the flat part, and is mounted so that the plane part side of the said cartridge body 1 may slide.

In addition, on the inner surfaces of the upper and lower halves 2 and 3 constituting the cartridge body 1, as shown in FIG. 1, an approximately circular recess 10 slightly larger than the outer diameter of the optical disc 4 is formed. It is. An arc-shaped rib 11 having a height to be opposed to each other is formed on the periphery of the front side of the substantially circular recessed portion 10. These arc-shaped ribs 11 abut against each other to form a front wall of the cartridge body 1. The roughly circular recesses 10 are opposed to each other by joining the upper and lower halves 2 and 3 together to constitute the disk storage part 12.

By the way, the side walls of the upper and lower halves 2, 3 facing each other face each other, and the granular walls 14 constituting the side walls 12, 13 of the cartridge body 1, (15), (16), and (17) are formed, but the rear side opposite to the front side to which the shutter 9 is coupled is opened in a state in which closed walls such as granular walls or arcuate ribs are not installed at all. have. The rear side of the cartridge body 1, which is formed by joining the upper and lower halves 2 and 3 formed as described above, is an opening that is opened substantially over the entire width as shown in FIG. It becomes the disk insertion opening 20 which inserts and detaches the optical disk 4 accommodated in the main body 1. As shown in FIG.

The cartridge body 1 is equipped with an insertion / exit opening / closing member 21 for opening and closing the disk insertion opening 20. The insertion / exit opening / closing member 21 is formed as shown in Figs. 1 and 5 by molding the same material as that of the synthetic resin forming the upper and lower halves 2, 3, for example. When the insertion outlet 20 is coupled to the disc insertion outlet 20 so as to be closed as shown in Figs. 2 and 8, the side wall portion 22 constituting the side wall on the rear side of the cartridge body 1 and It consists of a coupling piece 23 which protrudes from one side of the side wall portion 22 and enters and engages in the cartridge body 1 to form a disk storage portion 12. The side wall portion 22 is formed to have the same height and width as that of the disk insertion hole 20. In addition, the coupling piece 23, when inserted into the disk insertion opening 20, constitutes a side wall of the rear side of the disk storage portion 12, the upper and lower half (2), An arc-shaped cutout 24 continuous to the substantially circular recessed portion 10 of (3) is formed.

As one end side of the insertion and exit opening and closing member 21 formed as described above, the protruding piece 26 protrudes in the extending direction of the side wall portion 22, and the pivot pins 27 and 28 are provided on both sides of the protruding piece 26. ) Is erected. As shown in Fig. 7, these pivot pins 27 and 28 are engaged recesses 29 and (29) disposed on one inner side of one corner portion on the rear side of the upper and lower half portions 2 and 3, respectively. 30, respectively, to form a pivot portion 31, and the insertion and exit opening and closing member 21 is rotatably supported with respect to the cartridge body (1). In this way, the insertion and exit opening and closing member 21 supported by the cartridge body 1 is rotated in a plane parallel to the plane of the cartridge body 1, as shown in FIG. Manipulated.

In addition, the pivot part 31 pivoting the insertion / exit opening / closing member 21 forms pivot pins 27 and 28 on the upper and lower half parts 2 and 3 side in reverse to the above-described configuration. The engaging recesses 29 and 30 may be formed on the protruding piece 26 side.

In addition, the other end side of the cartridge body 1, which is opposite to the one end side on which the pivot pins 27 and 28 are installed, is formed on the other side wall 13 of the cartridge body 1. The elastic arm part 34 which provided the locking click 33 latched by the locking hole 32 which is a locking part at the front-end | tip is provided. As shown in Fig. 6, the elastic arm portion 34 is formed to extend from the leading edge of the coupling piece portion 23 toward the connecting portion wall portion 22 on the side of the other end side of the coupling piece portion 23. It is possible to elastically displace the connecting portion portion to the engaging piece portion 23 as a point. In addition, at one end of the insertion and exit opening and closing member 21, the engagement notch formed on the inner side surface of one side wall 12 of the cartridge body 1 in parallel with the pivot pins 27 and 28. A position restricting portion 36 formed as a projecting piece engaging with 35 is provided. That is, this position control part 36 is formed by protruding toward the front end side of the one end side of the engaging piece part 23. As shown in FIG. In addition, the position control part 36 is engaged with a part of the cartridge body 1 when the insertion / exit opening / closing member 21 is to close the disc insertion opening 20, What is necessary is just to regulate a rotation position, and various shapes, such as a click type, can be employ | adopted.

5 is formed on the other end side of the side wall portion 22 of the insertion / exit opening / closing member 21 to have the same thickness as that of the cartridge body 1 to facilitate the rotation operation of the insertion-exit opening / closing member 21. As shown in the figure, a grip portion 37 forming a ladder shape is provided. The gripping portion 37 is the back side of the upper and lower half portions 2 and 3 constituting the cartridge body 1 when the insertion and exit opening and closing member 21 is rotated to close the disc insertion opening 20. It engages with the engaging recesses 38a and 38b formed in the upper surface of the upper and lower half portions 2 and 3, as shown in FIG.

By the way, the lower side of the thickened gripping portion 37, i.e., the surface side facing the lower half 3 side when the insertion / exit opening / closing member 21 is mounted on the cartridge body 1, is shown in Figs. As described above, the recording preventing member 39 is mounted. The recording preventing member 39 is slidably mounted in the engagement hole 40 formed in the gripping portion 37, and by changing the position, the recordable position of the information signal to the optical disc 4 and the recordable position. Select the prevention position.

The insertion and exit opening and closing member 21 formed as described above engages the pivot pins 27 and 28 with the engaging recesses 29 and 30 of the upper and lower halves 2 and 3 as described above. 5 and 6, the cartridge body 1 is rotatably supported. Then, when the engaging piece 23 is rotated to engage in the disk insertion opening 20, the elastic arm 34 is elastically deformed on the inner surface of the side wall 13 of the other side of the cartridge body 1, the disk insertion It enters in the dislocation 20. Then, when the insertion and exit opening and closing member 21 is rotated to the position where the disk insertion opening 20 is completely closed, as shown in Figure 8, the elastic arm 34 is elastically returned to the locking click of the tip ( 33) is locked to the locking hole 32, and the insertion and exit opening and closing member 21 is locked with respect to the cartridge body (1). At this time, the position limiting portion 36 provided on one end side of the insertion and exit opening and closing member 21 engages with the engagement cutout portion 35 formed on the inner side surface of one side wall 12 of the cartridge body 1. do. The side wall portion 22 engages with the engagement step portions 18 and 19 formed on the inner surface of the rear end side of the upper and lower half portions 2 and 3 to seal the disk insertion opening 20. In this way, the insertion and exit opening and closing member 21, which is locked to the cartridge body 1 so as to close the disk insertion opening 20, as shown in Figure 8, the engaging click 33 and the position restriction portion 36 at both ends. Is regulated by the coupling position with respect to the cartridge body 1, and the regulation of the exact coupling position is achieved. In addition, since the position control unit 36 is disposed on the side where the pivot unit 31 is installed, when the load is applied to the insertion / exit opening / closing member 21, the position control unit ( 36), it is possible to prevent the excessive load is applied to the pivot (31). As a result, the pivoting part 31 can be protected.

In addition, in order to open the disc insertion opening 20 of the cartridge body 1, as shown in FIG. 9, a pressing hole 50 such as a pin is inserted from the locking hole 32 to insert the elastic arm portion 34. As shown in FIG. It is pressed and elastically deformed, and the locking click 33 at its tip is removed from the locking hole 32. At the position where the locking click 33 is released, the grip portion 37 is gripped to rotate the insertion / exit opening / closing member 21 in the direction of arrow A in FIG. (20) is opened. By opening the disk insertion opening 20 in this manner, the replacement operation of the optical disk 4 accommodated in the cartridge body 1 via the disk insertion opening 20 is performed.

However, as shown in FIG. 7, the front end surfaces of the pivot pins 27 and 28 constituting the pivot portion 31 pivoting the insertion / exit opening / closing member 21 on the cartridge body 1 are as shown in FIG. Inclined guide surface for guiding the engagement and disengagement of the pivot pins (27) and (28) to the engaging recesses (29) and (30) when the insertion / exit opening / closing member (21) is excessively rotated with respect to the cartridge body (1). (41) and (42) are formed. That is, the insertion / extraction opening / closing member 21 is over-rotated with respect to the cartridge body 1 which is rotated again from the position shown by the virtual line in FIG. 6 in the direction of arrow A 'in FIG. 6, and the protruding piece 26 is a cartridge. The inclined guide surfaces 41 and 42 engage the engaging portions 29 and 30 when they are brought into contact with the rear end surface of one side wall 12 of the main body 1 to be rotated about this contact point. Ride on the cross section of. And, as shown in Figure 10, to push the upper and lower halves (2, 3) to open, and to move the pivot pins (27), (28) from the engaging recess (29), (30). Guide. In this way, the inclined guide surfaces 41 and 42 engage with the engaging recesses 29 and 30 of the pivot pins 27 and 28 when the insertion / exit opening / closing member 21 is over-rotated. Since it functions to release the protection of the pivot portion 31 including the pivot pins 27, 28 is achieved, and further protection of the insertion and exit opening and closing member 21 is achieved.

In addition, the above-mentioned shutter 9 slides in the direction which closes the opening parts 7 and 8 by the torsion spring 43 arrange | positioned at the one corner part of the front side of the cartridge main body 1. As shown in FIG. . The cover opening operation of the shutter 9 is performed by the operation pin on the device side engaged with the operation pin insertion engagement hole 44 formed on one end side of the connecting piece 9c. In addition, in order to maintain the closed state of the shutter 9, the lock member which locks the said shutter 9 in the position which closed the opening parts 7, and 8 without using the torsion spring 43 mentioned above is used. The cover member may be provided so as to perform a lid opening operation by slid operation while releasing the lock by the locking member with the operation pin.

In the above embodiment, the disk insertion port 20 is described as an example in which the rear side of the cartridge body 1 is installed, but the shutter 9 is installed on the side where the coupling is not excreted. You may make it mount | wear 21 so that rotation is possible.

The present invention is equipped with an insertion opening and closing member for opening and closing the disk insertion opening and closing so as to rotate in a plane parallel to the plane of the cartridge body centered on the pivot portion to the cartridge body, the insertion opening and closing member is, Since the locking click provided at the distal end of the elastic arm portion provided on the opposite end side is locked by locking to the locking portion attached to the cartridge body, the unlocking operation of the insertion / exit opening / closing member with respect to the cartridge body is performed. Only the pressing operation of the elastic arm portion can be performed, and the opening / closing operation of the disk insertion / exit opening can be performed by gripping and rotating the insertion / exit opening / closing member. Therefore, during the opening / closing operation of the disc insertion port, unnecessary load is not applied to the cartridge body, thereby preventing deformation of the cartridge body and achieving sufficient protection of the disc-shaped recording medium housed therein.

In addition, the opening and closing member, when the disc insertion port of the cartridge body is closed, the position regulating portion provided on one end side of the pivot portion is engaged with a part of the cartridge body, so that the load is applied to the opening and closing member. It can be received from, can achieve the protection of the pivot portion, it is possible to configure a highly reliable disc cartridge having durability.

In addition, in the above-described embodiment, since the recording preventing member is provided on the insertion / exit opening / closing member, there is no need to provide a projection such as a pivot part for slidably supporting the recording preventing member on the cartridge body side, It is possible to provide a smooth surface in the cartridge body, and to provide a disc cartridge which can reliably prevent damage to the disc recording medium during the operation of replacing the disc recording medium. In particular, in the above embodiment, since the recording preventing member is provided in the thick gripping portion, the mounting strength can be sufficiently ensured. In addition, since the insertion / exit opening / closing member provided with the recording preventing member is reliably positioned and mounted with respect to the cartridge body as described above, it is possible to achieve an improvement in the mounting accuracy of the recording preventing member.

Claims (5)

A cartridge body rotatably accommodating a disc-shaped recording medium, comprising: a main surface extending over the recording medium, an opening in the main surface to expose the signal recording surface of the disc-shaped recording medium accommodated therein, and a main surface; A cartridge body having a disc-shaped recording medium on the orthogonal side thereof; An insertion / detachment member having a pivot portion at a first end side for opening and closing the insertion and exit pivotal to an end portion of the insertion and discharging opening of the cartridge body, and having an elastic arm portion at the second end side, wherein the elastic arm portion is the cartridge. It consists of an insertion and exit opening and closing member having a locking click engaged with the locking portion disposed on the other end side of the main body, And the release means for releasing engagement between the pivot portion and the cartridge body when the inserting / unclosing member rotates beyond a predetermined range. The disc cartridge according to claim 1, wherein the insertion / exit opening / closing member has a position limiting portion at a first end where the pivot portion is disposed, and the position limiting portion engages with an engagement portion of the cartridge body. The disc cartridge according to claim 1, wherein the insertion / exit opening / closing member is mounted on the cartridge body and rotates in a plane parallel to the main surface of the cartridge body in which the insertion-discharge opening is formed. The disc cartridge according to claim 1, wherein the pivot part comprises a pivot pin, and the release means comprises an inclined guide surface formed on an end surface of the pivot pin. 2. The disc cartridge according to claim 1, wherein a record preventing member is slidably mounted in the inserting and closing member.