JP3713861B2 - Storage case for disc cartridge - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a storage case for storing an optical disk or magneto-optical disk as a storage medium for sound and video signals or computer information in a hard case.
[0002]
[Prior art]
For example, as shown in FIG. 7, there is a so-called mini disk (hereinafter simply referred to as MD) in which a magneto-optical disk 40 having a diameter of 6.4 cm is built in a thin square box-shaped hard case 41, and the disk cartridge 42 is accommodated. For this purpose, a thin box-shaped storage case has been put into practical use. The storage case is formed in a bookcase shape in which the upper and lower cases 43 and 44 are integrally press-fitted and connected, so that the entrance / exit 45 of the disk cartridge 42 is opened to the front side. A pair of elastic left and right lock bodies 46 are incorporated near the inner back end of the storage case, and a positioning recess 47 is provided near the front ends of the left and right side walls of the disk cartridge 42. The recess 47 is formed in the lock body 46. The disc cartridge 42 is prevented from being inadvertently pulled out from the entrance / exit 45. According to such a storage case, the disk cartridge 42 is inserted and loaded from the inlet / outlet 45, and the disk cartridge 42 is pulled out from the inlet / outlet 45 against the elastic force of the lock body 46, whereby the disk cartridge 42 can be taken in and out.
[0003]
[Problems to be solved by the invention]
However, while the conventional storage case is a thin box and compact, the vertical distance of the entrance / exit 45 is as small as about 5 to 6 mm, so that it is difficult to insert and remove the disk cartridge 42. Furthermore, it is not easy to insert the disk cartridge 42 together with the index card.
[0004]
The lock body 46 is assembled closer to the inner end of the storage case because it is engaged with the recess 47 of the disk cartridge 42, but the location is narrow and difficult to assemble due to space limitations. Therefore, only the back wall 48 of the storage case is thickened, or ribs are attached to the inner surface of the back wall 48. According to this, when the front wall 42a of the disc cartridge 42 is accommodated until it contacts the thick back wall 48 or the inner rib of the back wall 48, the entire disc cartridge 42 is increased in thickness by the back wall 48 or the protrusion of the rib. It can be stored in a state of being biased toward the entrance / exit 45. In this case, the lock body 46 may be assembled by being biased toward the entrance / exit 45 in accordance with the amount of deviation of the disk cartridge 42, so that it is easy to assemble with sufficient space. However, if the back wall 48 of the storage case is made thicker than other parts, sink marks may occur during molding or a molding cycle may be delayed. If the ribs are attached to the back wall 48, the index card is easily caught on the back wall 48. Therefore, the index card has to be made small, which is not always a good solution.
[0005]
SUMMARY OF THE INVENTION An object of the present invention is to provide a storage case that can be easily put in and out even with a small disk cartridge such as an MD while having a thin rectangular box shape of a book case shape. An object of the present invention is to provide a storage case that can easily store both index cards together with a disk cartridge. An object of the present invention is to provide a storage case that can facilitate the assembly of a lock body without causing molding problems such as occurrence of sink marks or an increase in molding cycle, and without causing a problem that an index card is caught. It is in.
[0006]
[Means for Solving the Problems]
As shown in FIGS. 1 and 2, the storage case according to the present invention includes a case main body 10 and a lid body 11, and an entrance 12 is opened on the front surface. The case main body 10 has a rectangular bottom wall 14, a side wall 15 erected from the left and right ends of the bottom wall 14, and a back wall 16 erected from the rear end of the bottom wall 14. It is formed in a thin square box shape. The lid 11 has an upper wall 18 that opens and closes the upper surface of the opening of the case body 10, and a side wall 19 that hangs from the side of the upper wall 18 toward the inside of the side wall 15 of the case body 11. An elastic lock body 26 that is engaged with and disengaged from the positioning recess 6 provided near the front ends of the left and right side walls of the disc cartridge 1 is assembled to a portion near the rear end of the side wall 19. On the inner side of the side wall 15 of the case body 10 and the outer side of the side wall 19 of the lid 11, a guide groove 22 that is long in the front-rear direction is provided on one side, and a slide shaft 21 that is slidably engaged with the guide groove 22 on the other side. The case main body 10 and the lid body 11 are pivotally connected to each other through the slide shaft 21 and the guide groove 22. A slit between the left and right ends of the back wall 16 of the case body 10 and the rear end of the side wall 15 for allowing the side wall 19 of the lid 11 to pass along with the lock body 26 to the rear outside as the lid 11 slides rearward. 23 is formed, and the lid body 11 is configured to be able to open and rotate about the slide shaft 21 with respect to the case body 10 by the rear slide of the lid body 11.
[0007]
A partial back wall 25 for opening and closing the slit 23 is suspended from the left and right rear ends of the upper wall 18 of the lid 11. A rib 34 is provided on the inner side of the partial back wall 25 of the lid 11 so as to extend in the direction of the doorway 12 from the inner surface of the back wall 16 of the case body 10 when the slit 23 is closed. When 1 is completely stored, the left and right ends of the front face 1F are received by the extending ends of the ribs 34.
[0008]
[Action]
The lid body 11 can be opened and rotated around the slide shaft 21 by sliding the lid body 11 backward. This enlarges the entrance 12 of the disk cartridge 1 and facilitates the loading and unloading of the disk cartridge 1. Also, the index card 13 can be easily taken in and out together.
[0009]
When the disc cartridge 1 is completely stored in the storage case, the left and right ends of the front surface 1F are received by the extending ends of the ribs 34, so that the lock body is extended by the extending length of the ribs 34 from the inner surface of the back wall 16. 26 may be assembled while being biased toward the doorway 12. As a result, there is sufficient space and the lock body 26 can be easily assembled. Since the rib 34 can be integrally formed with the partial back wall 25 with a uniform thickness, there is no occurrence of sink marks or an increase in the molding cycle during the molding. Further, since the ribs 34 are located at both left and right ends of the back wall 16 and the positions correspond to the corners of the index card 13, there is no problem that the ribs 34 are caught on the index card 13.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
In FIG. 1, reference numeral 1 denotes a disk cartridge to be stored, specifically an MD. In the disk cartridge 1, a magneto-optical disk 2 is built in a thin box-shaped hard case 3, and a signal reading window 4 opened on one side of the upper and lower surfaces of the hard case 3 can be slid by a shutter 5. Positioning recesses 6 are formed in a semi-oval shape near the front end on both sides of the lower half of the hard case 3.
[0011]
As shown in FIGS. 2 and 4, the storage case for storing the disk cartridge 1 is formed in a thin rectangular box shape with a case body 10 and a lid 11, and an entrance 12 of the disk cartridge 1 is provided on the front surface thereof. Is open. An index card 13 is stored together with the disk cartridge 1 in the storage case.
[0012]
The case body 10 includes a rectangular bottom wall 14, side walls 15, 15 erected from the left and right ends of the bottom wall 14, and a back wall 16 erected from the rear end of the bottom wall 14. The front surface is made of a plastic molded product, and the front surface opening is an entrance 12. The lid 11 has a transparent or translucent structure having an upper wall 18 that closes the entire upper surface opening 17 of the case body 10 from the upper surface side so as to be openable and closable, and side walls 19 that are suspended from the lower surfaces of both sides of the upper wall 18. It consists of a plastic molded product. A notch 20 is vertically symmetrically provided at the front end edge of each of the upper wall 18 and the bottom wall 14 so as to expose a part of the rear end side of the disk cartridge 1 so that it can be easily grasped.
[0013]
The index card 13 is stored along the inner surface of the bottom wall 14 of the case body 10. The index card 13 has a label or the like for writing a title or details of recorded contents on one side of the mount so as to be peelable, and a usage note or the like is printed on the other side of the mount. In the illustrated example, the L-shaped index card 13 along the bottom wall 14 and the back wall 16 of the case body 10 is shown. The left and right width dimensions of the index card 13 are formed to be the same as or slightly narrower than the left and right width dimensions of the disk cartridge 1.
[0014]
In order to easily insert and remove the disk cartridge 1 and the index card 13, the lid body 11 is pivotally connected to the case body 10 as follows so that the upper surface opening 17 of the case body 10 can be opened and closed by the lid body 11. As shown in FIG. 2, slide shafts 21 are integrally projected outwardly from the lower end outer surfaces of the respective rear portions of the left and right side walls 19 of the lid 11, and are guided to the lower rear ends of the left and right side walls 15 of the case body 10. A groove 22 is provided, and the slide shaft 21 is engaged with the guide groove 22. The guide groove 22 has a rib 22a projecting in an annular shape on the inner surface of the side wall 15, and is formed long in the front-rear direction by the rib 22a.
[0015]
As shown in FIG. 3 (a), the lid 11 has a closed position in which the left and right edges of the upper wall 18 are received by the upper end surfaces of the left and right side walls 15 of the case body 10 and completely covers the upper surface opening 17. As shown in FIG. 3 (b), the entire position is slidably moved backward along the guide groove 22 away from the entrance / exit 12, and the whole is centered on the slide shaft 21 as shown in FIG. 3 (c). It can be displaced to an open position where the upper surface opening 17 is fully opened by rotating upward. A slit is formed between the left and right ends of the back wall 16 and the rear end of the side wall 15 so that the side wall 19 does not contact and interfere with the back wall 16 of the case body 10 when the lid 11 is slid rearward. 23 (see FIGS. 1 and 2). Further, when the lid body 11 is pivoted upward, the side wall 19 has an inverted V-shape adjacent to the rear side of the slide shaft 21 in order to prevent the side wall 19 from coming into contact with the bottom wall 14 of the case body 10. A notch 24 is provided. On the left and right of the rear end of the upper wall 18 of the lid 11, partial back walls 25 are respectively provided so as to fit in the slits 23 and close the slits 23 in the closed position.
[0016]
In a state where the disk cartridge 1 is stored in the storage case, the lock bodies 26 that engage with the positioning recesses 6 are assembled to the left and right side walls 19 of the lid body 11 so that the disk cartridge 1 does not inadvertently come out of the entrance 12. . In FIG. 2, the lock body 26 is formed of a plastic molded product in which a flat base 29 having a pair of front and rear engaging claws 27 projecting and a convex elastic protrusion 30 continuous below the base 29 are integrally formed. . In order to press-fit and fix the lock body 26 to the rear portion of the side wall 19 from the outside, a pair of engagement holes 32 for engaging the engagement claws 27 in a retaining manner above the slide shaft 21 of the side wall 19. In addition, a loading groove 33 for loading the elastic protrusion 30 is cut out and formed below the engagement hole 32. As shown in FIG. 6, in the mounted state in which the lock body 26 is press-fitted and fixed to the side wall 19, the elastic protrusion 30 protrudes inward of the side wall 19, and the elastic protrusion 30 can freely engage and disengage from the outer side of the recess 6 of the disk cartridge 1. To be elastically engaged.
[0017]
When the lock body 26 is assembled, the lock body 26 needs to be positioned near the rear end of the side wall 19 so as to correspond to the recesses 6 near the front end on both sides of the disk cartridge 1. Assembling workability is poor in narrow areas. Therefore, in order to make it easy to assemble the lock body 26, it is advantageous in terms of space to position the lock body 26 slightly forward from the rear end of the side wall 19.
[0018]
From this point of view, in the present invention, as shown in FIGS. 1 and 2, a forward-facing rib 34 is provided at the inner lower end of each of the left and right partial back walls 25 of the lid 11. Thus, when the disc cartridge 1 is completely stored, the left and right ends of the front surface 1F are received by the ribs 34 as indicated by the two-dot chain line in FIG. 1, and the front surface 1F is moved from the inner surface position of the back wall 16 toward the entrance / exit 12. It was supposed to be biased. In this case, as compared with the conventional storage state in which the front surface 1F of the disk cartridge 1 is in contact with the inner surface of the back wall 16 of the case main body 10, the concave portion 6 is biased to the front position by the front extension amount of the rib 34. Can be made. Thereby, the lock body 26 is relaxed in terms of space and can be easily assembled to the side wall 19 of the lid body 11. Since the rib 34 can be formed integrally with the partial back wall 25 with a uniform thickness, it can be formed without increasing only the back wall 16 of the case body 10. In the conventional example in which a rib is attached to the inner surface of the back wall 16 of the case body 10, the front edge of the index card 13 is caught. However, in the embodiment of the present invention in which the rib 34 is attached to the partial back wall 25 of the lid 11, Since the rib 34 is positioned at the corner of the index card 13, the index card 13 is not caught by the rib 34.
[0019]
The lid body 11 is required to prevent sliding movement toward the rear of the case at the closed position and to keep the lid 11 from opening and turning. For this purpose, a lid lock mechanism 35 is provided between the case body 10 and the lid body 11 as shown in FIGS. The lid locking mechanism 35 includes a pair of front and rear locking pieces 36 that project toward the front left and right sides of the lower surface of the upper wall 18 of the lid body 11 and a pair of front and rear that project toward the upper ends of the inner surfaces of the left and right side walls 15 of the case body 10. And a lock claw 37. The lock claw 37 at the front end is formed of a protrusion having an inverted trapezoidal cross section, and the lock claw 37 at the rear side is formed in a long rib shape in the front-rear direction. In order to limit the rear slide of the lid 11 by using the lock claw 37 at the front end, the front lock piece 36 is formed with a protrusion 38 that elastically engages the lock claw 37 on the horizontal wall portion thereof. Yes.
[0020]
In the closed position, the protrusion 38 is in contact with the front side of the front locking claw 37 from below, the slide shaft 21 is positioned at the front end of the guide groove 22, and the partial back wall 25 of the lid 11 is The slit 23 of the case body 10 is closed. When the lid 11 is pushed in from the closed state to the rear of the case as shown in FIG. 3B, the lock piece 36 is elastically deformed, and the protrusion 38 passes through the lower surface of the lock claw 37, and is behind the lock claw 37. The position switches to the position where it can be opened. At this time, the slide shaft 21 is located at the rear end of the guide groove 22.
[0021]
In the upper opening possible position, the lid body 11 can be freely opened upward with the slide shaft 21 as the center, and the upper wall 18 can be rotated from the horizontal posture to a position of 90 degrees or more than 90 degrees. In the state shown in FIG. 3C in which the lid 11 is pivoted upward as described above, the entire upper surface opening 17 is opened and the doorway 12 is greatly expanded. 13 can be easily put in and out. The lid 11 can be returned to the closed position by following the above procedure in reverse.
[0022]
Instead of the above embodiment, the slide shaft 21 may be formed on the side wall 15 of the main body case 10, and the guide groove 22 may be formed on the side wall 19 of the lid body 11. The guide groove 22 may be formed in a long hole shape penetrating the side wall 15 in the thickness direction thereof.
[0023]
【The invention's effect】
The storage case of the present invention is configured such that the lid 11 can be pivoted upward after sliding backward while maintaining the basic form in which the disk cartridge 1 is inserted and removed from the inlet / outlet 12 provided on the front side. Therefore, when the disk cartridge 1 is loaded / unloaded, the inlet / outlet 12 can be greatly expanded, and the loading / unloading can be performed easily. Even when the index card 13 is taken in and out together with the disk cartridge 1, both can be easily taken in and out.
[0024]
When ribs 34 are provided inside the left and right partial back walls 25 of the lid 11 and the disc cartridge 1 is completely stored, the left and right ends of the front surface 1F abut against the ribs 34 so that the position of the recess 6 is the entrance 12 It was supposed to be biased towards Accordingly, the lock body 26 is only required to be biased toward the entrance / exit 12 as much as the concave portion 6 is biased in the direction of the entrance / exit 12, so that a space can be provided and the lock body 26 is easily assembled. . In addition, the rib 34 can be integrally formed in the partial back wall 25 without causing sink marks or an increase in the molding cycle, and the problem that the rib 34 is caught on the index card 13 can be solved.
[Brief description of the drawings]
FIG. 1 is a partially cutaway plan view showing the internal structure of a storage case.
FIG. 2 is a perspective view in a state where a lid is opened.
FIGS. 3A, 3B, and 3C are center longitudinal side views showing the operation positions of a lid closing position, an upper opening position, and an opening position, respectively.
4 is a cross-sectional view taken along line AA in FIG.
FIG. 5 is a cross-sectional view taken along line BB in FIG.
6 is a cross-sectional view taken along line CC in FIG. 1. FIG.
FIG. 7 is a partially broken plan view of a conventional storage case.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Disc cartridge 6 Recessed part 10 Case main body 11 Cover body 12 Entrance / exit 13 Index card 14 Bottom wall 15 of case main body Side wall 16 of case main body Back wall 18 of case main body Top wall 19 of cover body 21 Side wall 21 of cover body Slide shaft 22 Guide groove 23 slit 25 part back wall 26 lock body 34 rib

Claims (1)

It is composed of a case body 10 and a lid body 11, and an entrance 12 is opened on the front surface.
The case body 10 includes a rectangular bottom wall 14, a side wall 15 erected from the left and right ends of the bottom wall 14, and a back wall 16 erected from the rear end of the bottom wall 14. It is formed in a thin square box shape that opens,
The lid body 11 has an upper wall 18 that opens and closes the upper surface of the opening of the case body 10, and a side wall 19 that is suspended from the left and right ends of the upper wall 18 toward the inside of the side wall 15 of the case body 10.
An elastic lock body 26 that is engaged with and disengaged from the positioning recess 6 provided near the front end of the left and right side walls of the disc cartridge 1 is assembled to the rear end portion inside the side wall 19 of the lid 11.
On the inner side of the side wall 15 of the case body 10 and the outer side of the side wall 19 of the lid 11, a guide groove 22 that is long in the front-rear direction is provided on one side, and a slide shaft 21 that is slidably engaged with the guide groove 22 on the other side. The case body 10 and the lid body 11 are pivotally connected to each other via a slide shaft 21 and a guide groove 22, respectively.
Between the left and right ends of the back wall 16 of the case body 10 and the rear end of the side wall 15, there is a slit 23 for passing the side wall 19 of the lid body 11 together with the lock body 26 to the rear outside as the lid body 11 slides rearward. Formed,
By the rear slide of the lid body 11, the lid body 11 can be opened upward and rotated around the slide shaft 21 with respect to the case body 10.
Left and right partial back walls 25 for opening and closing the slits 23 are suspended from the left and right rear ends of the upper wall 18 of the lid 11.
A rib 34 is provided on the inner side of the partial back wall 25 of the lid body 11 so as to extend from the inner surface of the back wall 16 of the case body 10 toward the entrance / exit 12 in a state where the slit 23 is closed.
A disc cartridge storage case, wherein the disc cartridge 1 is set so that the left and right ends of the front surface 1F are received by the extended ends of the ribs 34 when the disc cartridge 1 is completely stored.

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