JPH09330575A - Disk cartridge - Google Patents

Abstract

PROBLEM TO BE SOLVED: To store a disk recording medium into or withdrawing it from a cartridge case by providing a side plate having a shutter plate slidably mounted thereon to open or close a window part. SOLUTION: A tray-shaped case A has a rectangular bottom plate 1 and side plates 2 are fitted into three of four surrounding sides of the bottom plate 1 while a separate side plate E is fitted into the remaining one. A U-cut window part W is formed on the bottom plate 1. A surface part 15 of a side plate part 11 of the side plate E has a slide surface 16 where a shutter plate S moves sliding and a stepped surface 17. A half circular arc-shaped wall part 5 is arranged on the internal surface of the bottom plate 1 facing the internal surfaces of the side walls 2 to regulate the position of a circular disc recording medium D to be loaded into the case A. The recording medium D is horizontally loaded at an attitude parallel with the bottom plate 1 of the case A from the opening side of a side end part where the side plate 2 of a cartridge case C body is not formed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disc cartridge that rotatably accommodates a digital recording disc such as a compact disc.

[0002]

2. Description of the Related Art As shown in FIG. 15, a disk cartridge that rotatably accommodates a digital recording disk such as a conventional compact disk has a notched window portion W.
On a tray-shaped case A in which side plates 2, 2, 2, 2 are integrally provided on all four sides of a rectangular bottom plate 1 having a rectangular lid plate B (a hub for rotation drive as necessary). Is rotatably provided)
Is used.

Of the side plates 2 on the four sides, the side plate 2 in which the notched window portion W is formed by cutting.
A shutter plate S for opening and closing the window portion W is slidably attached to the side by a slide portion 7 via a spring F using the side plate 2 as a linear guide, and a disc recording such as a compact disc is recorded in the cartridge case C. The medium is loaded.

[0004]

The operation of storing the disk recording medium in the cartridge case C of the disk cartridge and the operation of taking out the disk recording medium from the cartridge case C are performed by removing the cover plate of the cartridge case C each time. It requires operations to open / close and attach / detach.

Therefore, it is necessary that the lid plate is attached to the tray-like case A of the cartridge case C by a connecting structure through an openable / closable hinge or a detachable structure.

Further, in the conventional cartridge case C, side plates 2, 2, 2, 2 around the tray-shaped case A are provided.
Cannot be removed because they are all integrated with the bottom plate 1.

Therefore, when the disc recording medium is taken out from the cartridge case C, the disc recording medium cannot be pulled out horizontally from the bottom plate 1 as it is in parallel with the bottom plate 1, and the peripheral edge portion of the disc recording medium is once pulled out from the bottom plate 1. It was necessary to lift it more obliquely to get over the side plate 2 and then take it out.

According to the present invention, in the operation of housing the disk recording medium in the cartridge case and the operation of taking out the disk recording medium from the cartridge case, the disk recording medium is pulled in and out horizontally in parallel with the bottom plate. The purpose is to allow the recording medium to be stored in and taken out from the cartridge case.

[0009]

The first invention of the present invention is as follows:
Cartridge having a rectangular lid plate B on a tray-shaped case A having side plates on three sides of a rectangular bottom plate having a notched window portion W, and a rectangular lid plate B covered with an opening O having no side plate on the other side. The case C, the disk recording medium D loaded in the case C from the opening O side, and the opening O
Attached so as to close the window and the window portion W
And a side plate E on which a shutter plate S for opening and closing is attached slidably.

The present invention is also the disk cartridge of the first invention, wherein the rectangular lid plate B has a notched window portion W.

Next, according to a second aspect of the present invention, a rectangular lid plate B is provided on a tray-shaped case A having side plates on three of four sides of a rectangular bottom plate having a notched window portion W. A cartridge case C which is covered and has an opening O without a side plate on one side, a disk recording medium D loaded in the case C from the side of the opening O, and the cartridge case C mounted so as to close the opening O and A side plate E to which a shutter plate S for opening and closing the window W is slidably attached
And the side plate E together with the shutter plate S.
A disk cartridge characterized in that it can be opened and closed via a hinge portion provided at one end of the disk cartridge.

The present invention is also the disk cartridge of the above-mentioned second invention, wherein the rectangular lid plate B has a notched window portion W.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION A disk cartridge according to the first invention of the present invention and a disk cartridge according to the second invention are
Detailed description will be given below according to an embodiment.

[First Invention] The disk cartridge of the first invention will be described in detail below with reference to the embodiments shown in FIGS.

[Regarding the tray-like case A] As shown in FIG. 1, the tray-like case A of the disc cartridge of the first invention is provided with a rectangular bottom plate 1 and three of four sides around the bottom plate 1. , The side plates 2, 2 and 2 are integrally provided, and the side plate is not integrally provided on the other one of the surroundings of the bottom plate 1, but is attached by later fitting a separate side plate E. And the side plates 2 on the four sides of the bottom plate 1, respectively.
A side plate portion is formed by the side plates E and 2, 2.

The rectangular bottom plate 1 is formed with a window portion W which is cut in a U shape (or a half shape of a general U shape) from the other one of the surroundings thereof. The inner surface is in contact with the surface of the non-recording area at several locations (for example, three locations) in the non-recording area near the center and the outer periphery of the disk along the outside of the semi-circular portion of the window W, and the surface of the recording area Is provided with a convex portion 1a for separating from the inner surface of the bottom plate 1 to prevent damage to the surface of the disk recording area.

Further, as shown in FIG. 1, the rectangular bottom plate 1 has a reverse L-shaped bottom plate region through a reverse L-shaped step portion 1b, and a direction closer to the inner surface of the bottom plate 1 than the bottom plate region. It has a rectangular bottom plate area raised by about 1 mm, and the outer surface of the bottom plate 1 is provided with a rectangular recess as a moving area in which a shutter plate S (see FIG. 3) described later slides. In addition, along the recess formed by the step portion 1b, the bottom plate 1
A linear guide plate 9 is provided on the outer surface of the linear guide plate 9 for pressing the tip end portion S ₁ of the shutter plate S and guiding it linearly. If the shutter plate S itself is shaped so as to be urged in a direction in which the entire case is sandwiched from the front and back surfaces thereof, a guide such as the linear guide plate 9 for pressing the tip portion S ₁ is pressed. Does not need.

[About Fitting Plate of Case A] In the disc cartridge according to the first aspect of the present invention, a pair of opposing ends of the other end of the bottom plate 1 on the side where the side plate 2 is not provided are provided. The end portions of the side plates 2 and 2 have fitting plates 3 of the same shape or different shapes, respectively.
3 is provided.

For example, as shown in FIG. 1, both fitting plates 3,
One of the three is a convex fitting plate 3a and the other is a notch fitting plate 3b, which are fitting plates of different shapes.

[Regarding the end engaging plate of case A]
In the disk cartridge of the first invention, the side plate 2
An end engaging plate 4 that slightly protrudes outward is provided along the upper edge of the other end of the bottom plate 1 on the side not provided with.

[Separate Side Plate E Attached by Fitting] As shown in FIG. 1, the side plate E of the disc cartridge of the first invention which is later attached to the tray-like case A by fitting will be described below. . Side plate E
Is a side plate portion 11 and an arcuate portion 1 on the opposite side to the side plate portion 11.
4, the side plate E is provided with fitting portions 12 and 13 of the same shape or different shapes at both ends thereof, and one of the fitting portions is fitted to the convex fitting plate 3a. The groove portion 12a is the groove portion 12a, and the other is a fitting groove portion 13a that fits with the notch fitting plate 3b.

On the upper surface portion 15 which is the surface of the side plate portion 11 of the side plate E, a slide surface 16 on which a shutter plate S (see FIG. 3), which will be described later, slides and a little (1 m) from the slide surface 16.
m) high step surface 17 is provided.
The end portion 17a of the shutter serves as a stopper for the shutter plate S described later.

The slide surface 16 has the slide surface 1
6 from one end portion 16a of the step surface 17 to the end portion 17a of the step surface 17 along the longitudinal direction of the side plate 11.
The slide surface 16 is formed higher than the upper surface of the fitting portion 12 by an amount corresponding to the depth of the groove 16b.

The slide surface 16 is provided with two keyholes 16c for temporarily locking the free movement of the shutter plate S, which will be described later, in the slide operation.

The upper inner surface of the slide surface 16 and the upper inner surface of the step surface 17 in the region between the fitting portion 12 and the arcuate portion 14 of the side plate 11 are covered on the case A. An end engaging plate 2 of a cover plate B (see FIG. 2) described later
Linear insertion grooves 1 for inserting and engaging 4
8a and 19a are engraved along the longitudinal direction of the side plate 11.

The lower surface, which is the rear surface of the side plate portion 11 of the side plate E shown in FIG. 1, has the same structure as the upper surface portion 15 described above, and has a structure symmetrical with the structure of the upper surface portion 15 on the front and back sides. The detailed description is omitted.

That is, the shutter plate S (see FIG. 3) is slid on the lower surface of the side plate E, which is the rear surface of the side plate 11, similarly to the upper surface 15 which is the surface of the side plate 11 of the side plate E described above. Equipped with a sliding surface 16 and a step surface 17,
An end portion 17a of the step surface 17 serves as a stopper for the shutter plate S.

A linear guide groove 16b is also formed on the slide surface 16 in the same manner.
Is formed higher than the upper surface of the fitting portion 12 by an amount corresponding to the depth of the groove 16b.

Then, the upper inner surface portion of the slide surface 16 and the step surface 17 in the area between the fitting portion 12 and the arc-shaped portion 14 of the side plate 11 on the lower surface portion of the side plate portion 11 of the side plate E. Linear insertion grooves 18a and 19a for inserting and engaging the end engaging plate 4 of the tray-shaped case A are formed in the upper inner surface of the side plate 11 along the longitudinal direction of the side plate 11.

Incidentally, the slide surface 16 on the lower surface which is the rear surface of the side plate portion 11 of the side plate E may or may not be provided with a keyhole 16c for temporarily locking the free movement of the shutter plate S in the sliding operation. Either may be used.

Next, as shown in FIG. 1, the inner surface of the bottom plate 1 is provided with a semi-arcuate wall portion 5 so as to face the inner surfaces of the three side plates 2, 2 and 2 thereof, and has a tray shape. The approximate position of the circular disc recording medium D (the portion indicated by the dotted line) loaded in the case A is regulated.

[0032] Incidentally, the disk recording medium D, the center hole D ₁ for rotation in the central portion is Ana設, this center hole D _1, rotation to be mounted on the disc drive apparatus separate through window portion W The driving body (rotational driving source such as hub) can be fitted from the vertical direction.

Further, as shown in FIG. 1, two corners are formed on the inner surface of the bottom plate 1 outside the semi-arcuate wall 5.
A rectangular lid plate, which will be described later, and a boss 6 to be heat-sealed by ultrasonic heating or the like are provided at a plurality of locations.

In FIG. 1, R is a key block for switching the disk recording medium D to either recording enabled / disabled, and 8 is mounted on the outer surface of the bottom plate 1 slidably in a linear direction. Blocks 8a are engaging protrusions, and the engaging protrusions 8a are engaged and locked in a keyhole 1c formed in a corner of the bottom plate 1.

[About Cover Plate B] Next, as shown in FIG. 2, the case A of the disk cartridge of the first invention is described.
The cover plate B to be put on is a rectangular upper plate 21 having substantially the same size as the plan view size of the case A, and has a U shape (or a half shape of the U shape) from one of the four sides thereof. A window portion W cut into the upper plate 2 is formed.
In the inner surface 1, the recording area is contacted with the surface of the non-recording area at several locations (for example, three locations) in the non-recording area near the center and the outer periphery of the disk along the outside of the semi-circular portion of the window W. A protrusion 21 for separating the surface from the inner surface of the upper plate 21 to prevent damage to the surface of the disk recording area
a. Regarding the provision of the window portion W on the cover plate B as described above, the window portion W is not provided in the first invention, but the window portion W as shown in FIG. 15 of the conventional example is formed. It is possible to use the lid plate B and the shutter plate S which are not provided.

As shown in FIG. 2, the rectangular upper plate 21 has an inverted L-shaped upper plate region through an inverted L-shaped step portion 21b, and the upper plate 21 is located above the upper plate region. The upper plate 21 has a rectangular upper plate region that is elevated by about 1 mm in the inner surface direction, and the shutter plate S (see FIG. 3) described later is provided on the outer surface of the upper plate 21 correspondingly.
Has a rectangular recess as a moving region for sliding movement, and the tip portion S ₁ of the shutter plate S is pressed linearly on the outer surface of the upper plate 21 along the recess formed by the step portion 21b. A linear guide plate 29 for guiding is provided.

Further, as shown in FIG. 2, two or more corners on the inner surface of the upper plate 21 (portions corresponding to the positions facing the boss 6 of the case A) are provided at two or more places. The boss 6 is inserted, and the guide ring 26 is provided with an energy director (protrusion-shaped portion to be fused) which is in contact with the tip portion of the boss 6 and is heat-fused by ultrasonic heating or the like.

A plurality of ribs 22 for slidingly contacting and guiding the inner surface of the side plate 2 are provided intermittently (or continuously) on each periphery of the upper plate 21 opposed to the side plate 2 of the case A. The side plate 2 is attached to the edge of the upper plate 21 outside the rib 22.
Is provided with an energy director (protrusion-shaped portion to be fused) which is brought into contact with the upper end portion of and is heat-fused by ultrasonic heating.

[About Shutter Plate S] FIG.
FIG. 11 is a perspective view of the shutter plate S of the disc cartridge of the invention of FIG. 1, which has a substantially U-shape as shown in the drawing, and slides along the outer surface of the upper plate 21 of the cover plate B to make the cover plate B Plate 31 for opening and closing the window W of the window
And a shutter plate 32 that slides along the outer surface of the bottom plate 1 of the case A to open and close the window portion W of the bottom plate 1.
And a connection plate 33 connecting both of them.

On the inner surfaces of the shutter plates 31 and 32 which face each other in parallel, a linear guide groove 16b is formed on the upper surface portion 15 on the front surface side of the side plate E, and a lower surface portion on the rear surface side of the side plate E is formed. Dot-shaped and linear guide-followers 34 and 35, respectively, which are fitted in a linear guide groove 16b similar to the one engraved on the upper surface portion 15 and guide the shutter plate S to linearly slide. , Equipped with intermittent lines.

The slide surface 16 is provided on the inner surface of either or both of the shutter plates 31 and 32.
The keyholes 16c are provided at two locations to temporarily lock the free movement of the shutter plate S in the sliding operation.
Is provided with a protrusion 36 that engages with the.

Further, at the tip end portions S ₁ of the shutter plates 31 and 32, slide portions 37 provided on the outer surface of the lid plate B for sliding the inner surface of the guide plate 29, and the guide plate provided on the outer surface of the case A are provided. 9 and a slide portion 38 that slides on the inner surface. If the shutter plate S itself is shaped so as to be urged in the direction of sandwiching the entire case from the front and back surfaces thereof, the slide portions 37 and 38 are not necessary.

In the carton case of the first invention, the lid plate B shown in FIG. 2 is provided on the upper side of the tray-like case A body as shown in FIG. 1, and the lid plate B is provided on the inner surface of the side plate 2 of the case A. The outer surfaces of the ribs 22 are closely fitted and covered, and the bosses 6 are attached to the guide ring 2
6, the energy director outside each rib 22 and the upper end surface of the side plate 2, and the tip end of the boss 6 and the energy director inside the guide ring 26 are fused by ultrasonic heating, The cartridge case C is created.

Then, as shown in FIG. 1, the disk recording medium D is horizontally placed in a posture parallel to the bottom plate 1 of the case A from the opening side of the side end where the side plate 2 of the cartridge case C body is not formed. Load it.

Then, the side plate E is attached to the opening side of the side end where the side plate 2 loaded with the disk recording medium D is not formed.
The disc cartridge of the first invention is formed by fitting the fitting portions 12 and 13 on both sides and the fitting plates 3 and 3 of the tray-shaped case A main body in the direction of the arrow and inserting the side plate E. is there.

When the disc recording medium D is taken out from the disc cartridge of the first invention, the disc recording medium D is released from the opening side by releasing the fitting between the disc cartridge and the side plate E and removing the side plate E. Can be taken out horizontally in a posture parallel to the bottom plate 1 of the case A.

When the side plate E is fitted to the opening side of the tray-shaped case A main body, the shutter guide S is previously engraved on the slide surface 16 of the side plate E from the fitting portion 12 side of the side plate E. By using the side plate E in which the guide followers 34 and 35 of the shutter plate S are fitted and fitted in the groove 16b,
The side plates E are fitted while the shutter plates 31 and 32 of the shutter plate S are superposed on the outer surface of the case A and the outer surface of the lid plate B, respectively, in sliding contact with each other.

FIG. 4 is an overall plan cross-sectional view of the disc cartridge of the first invention, in which a shutter plate S is slidably attached to the outer surface of the bottom plate 1 of the case A and the outer surface of the upper plate 21 of the cover plate B. Slide surfaces 37, 38 at the tip S ₁ of the
Are pressing linear guide plates 9 (see FIG. 1) provided on the outer surface of the bottom plate 1 of the case A and the outer surface of the upper plate 21 of the cover plate B, respectively.
(Refer to FIG. 2) and the pressing linear guide plate 29 (see FIG. 2) are slidably fitted.

[Assembly of Disk Cartridge of First Invention] FIGS. 5A to 5C are overall side sectional views for explaining the assembly sequence of the disk cartridge of the first invention.

FIG. 5A is a cross-sectional view of the tray-shaped case A body taken along the line MM. Side plates 2, 2 and 2 are provided on three of the four sides of the rectangular bottom plate 1, respectively. A linear guide plate 9 is provided on the outer surface of _{No. 1} to press and guide the tip portion S ₁ of the shutter plate S.

FIG. 5B is a sectional view taken along the line MM showing a state where the cover plate B is put on the tray-shaped case A main body, and is shown in three of four sides around the rectangular bottom plate 1. Side plate 2,
Two side plates 2, 2 are provided at the other end on one side provided with
And a rectangular opening O formed by the lid plate B and the side edges 24 and 4 of the case A at the top and bottom.

FIG. 5 (c) shows the side plate E having the shutter plate S slidably attached to the opening O after the cover plate B is placed on the tray-like case A body as described above. It is a MM side sectional view showing a state in which the lid plate B and the case A are fitted and sealed by fitting and closing.
Reference numerals 4 and 4 denote linear upper and lower fitting grooves 18a and 18 formed in the upper inner surface portion and the lower inner surface portion of the side plate E, respectively.
The disk cartridge of the first invention as shown in the overall perspective view of FIG. 6 is completed by being fixedly held by being inserted into a (and the upper and lower fitting grooves 19a, 19a).

[Second Aspect] A disk cartridge according to a second aspect of the present invention is shown in FIG.
Detailed description will be given below according to another embodiment shown in FIGS.

[Regarding the tray-like case A in the embodiment of the second invention] The tray-like case A of the disk cartridge in the embodiment of the second invention is, as shown in FIG. 1 is a structural form substantially similar to the tray-shaped case A of the disc cartridge of the first invention, and comprises a rectangular bottom plate 1 and side plates 2, 2 and 2 integrally on three of the four sides of the bottom plate 1. However, there is a side plate E, which is separate from the bottom plate 1, on the other one of the surroundings of the bottom plate 1.
It is attached to the case A via a hinge so as to be openable and closable.

[About the Fitting Plate and the Support Shaft Hole of Case A] In the disk cartridge of the second invention, as shown in FIG.
As shown in FIG. 2, the pair of side plates 2 and 2 which are one end of the edge portion of the bottom plate 1 on the side where the side plate 2 is not provided and which oppose each other.
One of the side plates 2 (for example, the side plate 2 on the right side of the bottom plate 1 on the side where the side plate 2 is not provided) has a fitting plate 3 at its end, and the fitting plate 3 has a convex fitting plate. Equipped with 3a,
The other end of the edge of the bottom plate 1 on the side where the side plate 2 is not provided, and the end opposite to the side where the fitting plate 3 is provided has a spindle hole for forming a hinge part. 3c is bored.

[Regarding End Engagement Plate of Case A] In the disc cartridge of the second invention, the first engagement plate described above is used.
Similarly to the disk cartridge of the invention described above, an end engaging plate 4 that slightly protrudes outward along the upper edge of the other end of the bottom plate 1 on the side where the side plate 2 is not provided is provided.

[Separate Side Plate E Attached to Case A] As shown in FIG. 7, the side plate E of the disc cartridge of the second invention to be later attached to the tray-like case A will be described below.

The side plate E is provided with a side plate portion 11 and an arcuate portion 14 on the opposite side to the side plate portion 11, and a fitting portion 12 is provided at one end of the side plate E. The fitting portion 12 has the convex fitting plate 3a. Is provided with a fitting groove portion 12a, and the other end portion of the side plate E is
A bracket 13b forming a hinge portion and a support shaft 13c for a hinge are provided in the bracket 13b in a vertical direction, and the support shaft 13c is inserted into a support shaft hole 3c formed at one end of the bottom plate 1 of the case A. And is pivotally supported.

[About Cover Plate B] Next, the cover plate B to be put on the case A of the disk cartridge of the second invention is as follows.
Case A of the disk cartridge of the first invention described above
The cover plate B has the same structure as that of the cover plate B, but as shown in FIG. 8, a hinge part is formed at one end of the one end edge portion of the upper plate 21 of the cover plate B where the window W is formed. Support hole 2
3 is bored.

[Assembly of Disk Cartridge in One Embodiment of Second Aspect of the Invention] The carton case of the second aspect of the invention has a side plate E in a spindle hole 3c of a tray-shaped case A body as shown in FIG. The support shaft 13c at one end is inserted, and the fitting plate 3 of the case A body is fitted to the fitting portion 12 at the other end of the side plate E.

Then, the support shaft hole 23 of the cover plate B shown in FIG.
Through the support shaft 13c of the side plate E of the case A main body,
The lid plate B is placed on the upper side of the case A body, the rib 22 outer surface of the lid plate B is closely fitted to the inner surface of the side plate 2 of the case A, and the boss 6 is fitted to the guide ring 26. Rib 22
The outer energy director, the upper end surface of the side plate 2, the tip of the boss 6, and the energy director inside the guide ring 26 are fused by ultrasonic heating.
As a result, as shown in FIGS. 9 and 10, a cartridge case C in which the side plate E is pivotally supported so as to be openable and closable via the hinge portion of the support shaft 13c and can be engaged and closed by the fitting portion 12 and the fitting plate 3. create.

Then, as shown in FIG. 10, the side plate E of the cartridge case C is opened through the support shaft 13c, and the side end of the cartridge case C body where the side plate 2 is not formed is opened. The bottom plate 1 of the case A from the opening side
The disk recording medium D is loaded horizontally in a posture parallel to.

After loading the disk recording medium D into the cartridge case C, the side plate E is closed and the fitting portion 12 of the side plate E is fitted into the fitting plate 3 at the opening end of the cartridge case C. Combine and fix.

When the disc recording medium D is taken out from the disc cartridge of the second invention, the side plate E is opened and the disc recording medium D is attached to the bottom plate 1 of the case A from the opening side as shown in FIG. It can be taken out horizontally in a parallel posture.

When the side plate E is attached to the opening side of the main body of the tray-shaped case A so as to be openable and closable via the hinge portion, the linear guide groove 16b formed on the slide surface 16 of the side plate E in advance is used as a shutter. Side plate E in which plate S is fitted
To use. Then, the side plates E are opened and closed with respect to the disc cartridge while the shutter plates 31 and 32 of the shutter plate S are superposed on and slidably contacted with the outer surface of the case A and the outer surface of the cover plate B, respectively.

[Regarding tray-like case A in another embodiment of the second invention] A tray-like case A of a disk cartridge in another embodiment of the second invention.
As shown in FIG. 11, is a structural form substantially similar to the tray-shaped case A of the disc cartridge in the embodiment of the second invention described above, and has a rectangular bottom plate 1,
The side plates 2, 2 and 2 are integrally provided on three sides of the four sides of the bottom plate 1, but the side plate E, which is separate from the bottom plate 1, is provided on the other side of the remaining periphery of the bottom plate 1. It is attached to A via a hinge so that it can be opened and closed.

[About the Fitting Plate and the Support Hole of Case A] In the disk cartridge of the second invention, as shown in FIG.
As shown in FIG. 1, the bottom plate 1 on the side where the side plate 2 is not provided
A pair of the side plates 2 facing each other, which are one end of the edge portion of
One of the two side plates 2 (for example, the left side plate 2 facing the end of the bottom plate 1 on the side where the side plate 2 on the side opposite to the one embodiment is not provided) is fitted to the end plate. Equipped with 3,
The fitting plate 3 is provided with a notch fitting portion 3b, which is the other end of the end edge portion of the bottom plate 1 on the side where the side plate 2 is not provided and which is the end opposite to the side where the fitting plate 3 is provided. A spindle hole 3c for forming a hinge portion is formed in the hole.

[Regarding End Engagement Plate of Case A] In the disk cartridge of the second invention, the above-mentioned second engagement plate is used.
Similarly to the disc cartridge according to the embodiment of the present invention, an end engaging plate 4 slightly protruding outward along the upper edge of the other end of the bottom plate 1 on the side where the side plate 2 is not provided. Is equipped with.

[Separate Side Plate E Attached to Case A] The side plate E includes a side plate portion 11 and a side plate portion 11 as shown in FIG.
An arcuate portion 14 is provided on the opposite side opposite to it, and a bracket 12 for forming a hinge portion is provided at one end of the side plate E.
b, the bracket 12b is provided with a support shaft 12c for forming a hinge portion in the vertical direction, and the support shaft 12c is
The case A is axially supported by being inserted into a support shaft hole 3c formed at one end of the bottom plate 1.

The other end of the side plate E is provided with a fitting portion 13 and a fitting groove portion 13a for fitting with the fitting plate 3 and the notch fitting portion 3b of the case A body.

[Regarding Cover Plate B] Next, the cover plate B to be put on the case A of the disk cartridge according to another embodiment of the second invention is put on the case A of the disk cartridge of the first invention described above. Although it has the same structure as the cover plate B, as shown in FIG. 12, a spindle for forming a hinge part at one end of one end edge portion of the upper plate 21 of the cover plate B where the window W is formed. The hole 23 is provided.

[Assembly of a Disk Cartridge in Another Embodiment of the Second Invention] A cartridge case in another embodiment of the second invention is a spindle of a tray-shaped case A main body as shown in FIG. The support shaft 12c at one end of the side plate E is inserted into the hole 3c, and the fitting plate 3 of the case A body is fitted to the fitting portion 13 at the other end of the side plate E.

Then, the support shaft hole 23 of the cover plate B shown in FIG.
Through the support shaft 12c of the side plate E of the case A main body,
The lid plate B is placed on the upper side of the case A body, the rib 22 outer surface of the lid plate B is closely fitted to the inner surface of the side plate 2 of the case A, and the boss 6 is fitted to the guide ring 26. Rib 22
The outer energy director, the upper end surface of the side plate 2, the tip of the boss 6, and the energy director inside the guide ring 26 are fused by ultrasonic heating.
Thereby, as shown in FIGS. 13 and 14, the side plate E is pivotally supported so as to be openable and closable via the hinge portion of the support shaft 12c,
A cartridge case C that can be engaged and closed by the fitting portion 13 and the fitting plate 3 is created.

Then, as shown in FIG. 14, the side plate E of the cartridge case C is opened via the support shaft 12c, and the side end of the cartridge case C body where the side plate 2 is not formed is opened. The bottom plate 1 of the case A from the opening side
The disk recording medium D is loaded horizontally in a posture parallel to.

After the disk recording medium D is loaded into the cartridge case C, the side plate E is closed and the fitting portion 13 of the side plate E is fitted into the fitting plate 3 at the opening end of the cartridge case C. Combine and fix.

When the disc recording medium D is taken out from the disc cartridge of the second invention, the side plate E is opened and the disc recording medium D is attached to the bottom plate 1 of the case A from the opening side as shown in FIG. It can be taken out horizontally in a parallel posture.

[0077]

The disk cartridge according to the first aspect of the present invention is provided with a guide rail for sliding the shutter plate on the cutout side of the window portion among the side plates on the four sides around the rectangular cartridge case. Side plate,
It is provided by a fitting method so that it can be attached to and detached from the case body, and when the disc recording medium is stored in the cartridge case and the disc recording medium is taken out from the cartridge case, the one side plate is temporarily removed. It can be stored / removed by removing and opening it, and the disc recording medium can be stored / removed in / from the cartridge case easily and easily in the horizontal direction with the disc recording medium parallel to the bottom plate. There is an effect such as being able to.

The disk cartridge according to the second aspect of the invention can achieve the same effects as the first aspect of the invention, and the operation of storing the disk recording medium in the cartridge case, and the operation of storing the disk recording medium from the inside of the cartridge case. In the taking-out operation, the one side plate can be opened and closed through the hinge part at one end, so that one end of the one side plate is rotatably fixed in a fixed position by the hinge with respect to the one end of the disc cartridge body. Since it is in the state, when the one side plate is fitted to the opening of the disc cartridge main body, there is an advantage that the one side plate is easy to position and the assembly and fitting are easy to perform, and the one side plate can be opened and closed via the hinge at one end. When the side plate is fitted into the opening of the disc cartridge main body, the shutter plate S held on one side plate side is Since the shutter plate S can be fitted and closed or opened while slidably moving the inner surface of the shutter plate S with respect to the outer surface of the disk cartridge body with respect to the cartridge body, the shutter plate S is housed in the disk cartridge body, and the window portion It is possible to avoid the risk of damaging the surface of the disc exposed from the front end of the shutter plate S, etc. Further, as in the first aspect of the present invention, one end of the cartridge case is opened for storage / removal. Therefore, there is an effect that the disc recording medium can be easily taken in and out in the horizontal direction in a posture parallel to the bottom plate to store and take out the disc recording medium in the cartridge case.

[Brief description of drawings]

FIG. 1 is an assembled perspective view showing a tray-shaped case body and a side plate of a disc cartridge of the first invention.

FIG. 2 is a perspective view showing a cover plate of the disc cartridge of the first invention.

FIG. 3 is a perspective view showing a shutter plate of the disc cartridge of the first invention.

FIG. 4 is an overall plan view of the disc cartridge of the first invention.

FIG. 5 is a side sectional view for explaining the assembling order of the disc cartridge of the first invention.

FIG. 6 is an assembled perspective view of the disc cartridge of the first invention.

FIG. 7 is an assembled perspective view showing a tray-shaped case main body and side plates in an embodiment of the disc cartridge of the second invention.

FIG. 8 is a perspective view showing a cover plate in an embodiment of the disc cartridge of the second invention.

FIG. 9 is an overall plan view of an embodiment of the disc cartridge of the second invention.

FIG. 10 is a perspective view showing the completed assembly of an embodiment of the disc cartridge of the second invention.

FIG. 11 is an assembled perspective view showing a tray-shaped case body and side plates in another embodiment of the disk cartridge of the second invention.

FIG. 12 is a perspective view showing a cover plate in another embodiment of the disc cartridge of the second invention.

FIG. 13 is an overall plan view of another embodiment of the disc cartridge of the second invention.

FIG. 14 is a perspective view showing a completed assembly of another embodiment of the disk cartridge of the second invention.

FIG. 15 is an overall plan view of a conventional disc cartridge.

[Explanation of symbols]

A ... tray-shaped case B ... cover plate C ... cartridge case D ... disc recording medium E ... side plate O ... opening S ... shutter plate S ₁ ... tip 1 ... bottom plate 1b ... stepped portion 2 ... side plate 3 ... fitting plate 3c
... Support shaft hole 4 ... Fitting edge 5 ... Arc wall plate 6 ... Boss 8 ... Slide plate 9 ... Linear guide plate 11 ... Side plate part 12 ... Fitting part 12a ... Fitting groove part 12
b ... Bracket 12c ... Spindle 13 ... Fitting portion 13a ... Fitting groove portion 13
b ... bracket 13c ... support shaft 14 ... arc-shaped portion 15 ... upper surface portion 16 ...
Sliding surface 16b ... Linear guide groove 16c ... Keyhole 17 ...
Step surface 17a ... Step portions 18a, 19a ... Inserting fitting groove 21 ... Upper plate 21a
... convex part 21b ... step part 22 ... rib 24 ... fitting end edge part 26 ... guide ring
29 ... Linear guide plates 31, 32 ... Shutter plate 33 ... Connection parts 34, 35
… Guide follower 36… Internal protrusions 37, 38… Slide plate

Claims (4)

[Claims] 1. An opening having a rectangular lid plate B on a tray-shaped case A having side plates on three of four sides of a rectangular bottom plate having a notched window portion W and a side plate having no side plate on the other side. Cartridge case C having a portion O and the opening O
A disk recording medium D loaded into the case C from the side,
A disk cartridge, comprising: a side plate E, which is attached so as to close the opening O and has a shutter plate S for opening and closing the window W slidably attached thereto. 2. The disk cartridge according to claim 1, wherein the rectangular lid plate B has a window portion W in a notch shape. 3. A rectangular lid plate B is placed on a tray-shaped case A having side plates on three sides of a rectangular bottom plate having a notched window portion W, and an opening without a side plate on the other side. Cartridge case C having a portion O and the opening O
A disk recording medium D loaded into the case C from the side,
A side plate E slidably attached to the shutter plate S for closing the opening O and opening and closing the window W. A disk cartridge characterized in that it can be opened and closed through a hinge portion provided. 4. The disk cartridge according to claim 3, wherein the rectangular lid plate B has a window portion W in a cutout shape.