JP2006008142A - Tape cassette case - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a tape cassette case capable of reliably protecting the tape cassette by being automatically locked when dropped even when the lock of a side lock part is incomplete. <P>SOLUTION: The tape cassette case comprises an accommodation part 11 having a peripheral wall to accommodate the tape cassette 50, a lid part 12 having an outer wall 26 to surround the accommodation part 11, a connection plate 13 to be hinge-connected so as to open/close the accommodation part 11 and the lid part 12, an engagement part 38 formed on an outer surface of the outer wall 26 of the lid part 12, and a side lock part 14 which is hinge-connected to a part of the peripheral wall of the accommodation part 11 and locked to the engagement part 38 as being turned. The side lock part 14 is hinge-connected to the accommodation part 11 at the position on the accommodation part 11 side from the outer wall 26 of the lid part 12 when the lid part 12 is closed. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a tape cassette storage case, and more particularly to a technique for reliably protecting a tape cassette stored therein.

For example, among the broadcasting equipment used in broadcasting stations and the like, recent digital TV cameras dedicated to recording and coverage have come to use small digital video cameras with good portability. Even though this camera is small, it can obtain high image quality through digital signal processing, and is therefore frequently used as a professional equipment for broadcast station photographers and video recording specialists.
Digital video cassettes loaded and used in such portable digital video cameras have a plurality of sizes with different recording times, and each is put in a dedicated tape cassette storage case and marketed.
As an example of a conventional tape cassette storage case, a tape cassette storage case including a storage portion, a lid portion, a hinge connection portion, and a side lock portion is known (for example, see Patent Document 1).

As shown in FIGS. 6 and 7, the tape cassette storage case 70 disclosed in Patent Document 1 is a hard-type case, and includes a storage portion 71 having four side walls 72 and a lid having three side walls 74. The portion 73 is connected to the bottom plate of the storage portion 71 and the top plate 75 of the lid portion 73, and includes a hinge connecting portion 76 that becomes one side wall of the lid portion 73 in a state where the lid portion 73 is closed.
A side lock portion 77 is hinge-connected to the tape cassette storage case 70 on the front side of the storage portion 71 opposite to the hinge connection portion 76. The side lock portion 77 is engaged with a locking portion 78 formed on the outer surface of the side wall 74 of the lid portion 73 when the side wall 74 of the lid portion 73 is overlaid on the outside of the side wall 72 of the storage portion 71 and closed. Stopped and locked.
JP 2002-179176 A

  However, in the above-mentioned Patent Document 1, when the user accidentally drops the tape cassette storage case 70 when the side lock portion 77 is transported in an incompletely locked state, the tape cassette is There is a possibility that the storage case 70 is opened, and the stored tape cassette is released and the tape cassette is damaged.

  The present invention has been made in view of the above-described circumstances, and an object of the present invention is to enable automatic locking when the locking of the side lock portion is incomplete, and thus to ensure that the tape cassette is An object of the present invention is to provide a tape cassette storage case that can be protected.

The above object is achieved by a tape cassette storage case having the following configuration.
(1) A storage portion having a peripheral wall for storing a tape cassette, a lid portion having an outer wall surrounding the storage portion, a connecting plate hinged to open and close the storage portion and the lid portion, A tape cassette comprising: an engaging portion formed on an outer surface of the outer wall; and a side lock portion hinged to a part of the peripheral wall of the storage portion and locked to the engaging portion as it rotates. In the storage case, the side lock portion is hinged to the storage portion at a position closer to the storage portion than the outer wall of the lid portion when the lid portion is closed. Tape cassette storage case.

  In the tape cassette storage case configured in this way, even when the lock of the side lock portion is incomplete, the side lock portion is located at a position closer to the storage portion than the outer wall of the lid portion when the lid portion is closed. Since it is hingedly connected to the storage part, the side lock part is rotated by the hinge connection part and simply locked by simply bringing the tape cassette storage case into contact with the flat surface. . Therefore, even if the side lock portion is incompletely locked, it is automatically locked when it is placed on a desk or dropped on the floor surface, and the tape cassette can be reliably protected.

  (2) The tape cassette storage case according to claim 1, wherein a gap between the side lock portion and the outer wall surface of the lid portion when the lid portion is closed is set to 1 mm or less. .

  In the tape cassette storage case configured as described above, since the gap between the side lock portion and the outer wall surface of the lid portion is 1 mm or less, the deformation allowance of the side lock portion is small even when an external force is applied to the case. It becomes difficult to unlock.

  According to the tape cassette storage case of the present invention, even if the lock of the side lock portion is incomplete, the side lock portion is rotated by simply placing the tape cassette storage case on a flat surface. Will be locked. Thereby, even if the lock of the side lock portion is incomplete, it is automatically locked when placed on the desk or dropped on the floor surface, and the tape cassette can be reliably protected.

DESCRIPTION OF EMBODIMENTS Hereinafter, preferred embodiments of a tape cassette storage case according to the present invention will be described in detail with reference to the drawings.
FIG. 1 is an external perspective view of a tape cassette storage case according to the present invention in an opened state. 2 is a perspective view of the appearance of the tape cassette storage case shown in FIG. 1 in a closed state where the cover is closed to the storage portion, and FIG. 3 is a cross-sectional view of the tape cassette storage case shown in FIG. is there.

  As shown in FIG. 1, a tape cassette storage case 10 according to an embodiment of the present invention includes a storage unit 11, a lid unit 12, a coupling plate 13 hinged to the storage unit 11 and the lid unit 12, and a storage unit. A side lock part 14 hinged to a part of the part 11 is formed by integral molding. The tape cassette storage case 10 is made of a polymer resin such as polypropylene (PP), for example.

  In the storage portion 11, peripheral walls 16, 17, 18, and 19 are formed on the outer edge portion of the bottom plate 15 so as to stand on the bottom plate 15 so as to surround the surrounding four sides. The peripheral wall 16 is disposed on the front side of the storage unit 11, the peripheral wall 17 is disposed on the back side of the storage unit 11, and the peripheral walls 18 and 19 are disposed on the left / right side of the storage unit 11. At the center of the peripheral walls 16, 17, 18, and 19, notches 20, 21, 22, and 23 are formed by cutting out the tape cassettes so that the height is reduced.

  In the storage portion 11, a pair of reel locking ribs 24 and 24 are formed in the center portion of the bottom plate 15. The reel locking ribs 24, 24 are formed in a cylindrical shape having a slit in the cylinder direction. By inserting a winding hub (not shown) included in the tape cassette 50, the tape cassette 50 is attached to the peripheral walls 16, 17, 18 and 19 are positioned inside.

  In the storage part 11, a pair of first engagement parts 25, 25 are formed on the side part of the front surface of the peripheral wall 16. As shown in FIG. 2, when the lid 12 is closed, the first engaging portions 25, 25 are on the side opposite to the connecting plate 13 side of the outer walls 26, 27, 28 of the lid 12. A pair of engaging protrusions 29 and 29 formed inside the outer wall 26 are locked.

  In the lid portion 12, outer walls 26, 27, and 28 are formed upright on the top plate 30 so as to surround the outer periphery of the top plate 30 so as to surround three sides of the top plate 30. The outer wall 26 is arranged corresponding to the front surface of the storage unit 11 when the lid 12 is closed to the storage unit 11, and the outer walls 27 and 28 correspond to the left and right sides of the storage unit 11 in the same manner. It is arranged.

A second engaging portion (see FIG. 2) 38 is formed at the center of the outer surface of the outer wall 26 in the lid portion 12.
The connecting plate 13 is formed in a curved plate shape between the end portions of the storage portion 11 and the lid portion 12 and is hinge-connected by hinges 39 and 40 arranged at both ends in the width direction. . One hinge 39 is connected to the end of the bottom plate 15 of the storage portion 11, and the other hinge 40 is connected to the end of the top plate 30 of the lid portion 12.

  The side lock portion 14 includes a main body 34 formed in a trapezoidal plate shape and an extension plate portion 35. A second locking portion 36 is formed on the upper surface of the main body 34. The extension plate portion 35 is connected perpendicularly to the main body 34, and the end portion is connected to the bottom plate 15 of the storage portion 11 via a hinge portion 37.

  As shown in FIG. 2, the side lock portion 14 has the engagement protrusions 29 and 29 locked to the first engagement portions 25 and 25, respectively, by closing the lid portion 12 with respect to the storage portion 11. After that, the second locking portion 42 is locked and locked to the second engagement portion 38 of the lid portion 12 by being turned upward in FIG. Double lock function.

  The side lock portion 14 is hinged to the storage portion 11 at a position closer to the storage portion 11 than the outer wall 26 of the lid portion 12 when the cover portion 12 is closed. Further, when the lid 12 is closed with respect to the storage portion 11 and the engagement protrusions 29 and 29 are locked to the first engagement portions 25 and 25, respectively, as shown in FIG. The extension plate portion 35 is disposed so as to protrude below the bottom plate 15 of the storage portion 11 in a state in which the second locking portion 36 is not locked to the second engagement portion 38 provided on the outer wall 26 of the lid portion 12. Then, the second locking portion 36 is locked and locked to the second engaging portion 38 of the lid portion 12 by being turned upward in FIG. 1 by the user via the hinge portion 37. . At this time, when the second locking portion 36 is locked to the second engaging portion 31, the extension plate portion 35 is disposed on the same plane as the bottom plate 15 of the storage portion 11. Further, when the lid portion 12 is closed by the storage portion 11, the outer walls 26, 27, and 28 of the lid portion 12 are disposed around the peripheral walls 16, 18, and 19 of the storage portion 11.

  As shown in FIG. 3, the tape cassette storage case 10 is made of resin using a parting line PL that connects the bottom plate 15 of the storage portion 11, the extension plate portion 35 of the side lock portion 14, and the main body 34 of the side lock portion 14. (In FIG. 3, the PL line is shown only for the storage part 11 and the side lock part 14). Therefore, since it is not necessary to perform mold separation of a complicated shape, a large amount of equipment cost for the mold is not required as compared with the conventional one.

  Next, the movement of the side lock portion 14 when the tape cassette storage case 10 falls will be described with reference to FIG. 4A is a longitudinal sectional view around the side lock portion when the side lock portion is dropped in an incomplete state in the tape cassette storage case shown in FIG. 1, and FIG. 4B is the tape cassette storage case. It is a longitudinal cross-sectional view after dropping of a case.

  As shown in FIG. 4A, the lid 12 is closed by engaging the engagement protrusions 29 and 29 of the lid 12 with the first engagement portions 25 and 25 of the storage portion 11. In a state where the lock of the side lock part 14 is incomplete, that is, in a state where the second locking part 36 is not locked to the second locking part 31, the user mistakenly holds the tape cassette storage case. When 10 is dropped, the extension plate portion 35 protruding from the bottom plate 15 of the storage portion 11 collides with the floor 51. When the extension plate portion 35 collides with the floor 51, the side lock portion 14 is rotated in the clockwise direction in FIG. 5 by the weight of the tape cassette storage case 10 in which the tape cassette 50 is stored.

  And as shown in FIG.4 (b), when the tape cassette storage case 10 lands on the floor 51, since the extension plate part 35 of the side lock part 14 is arrange | positioned on the same plane as the bottom plate 15 of the storage part 11, The second locking portion 36 is automatically locked to the second engaging portion 31.

  As described above, the side lock portion 14 is configured such that the lid portion 12 is closed with respect to the storage portion 11 and the engagement protrusions 29 and 29 are locked to the first engagement portions 25 and 25, respectively. Even when the two locking portions 36 are not completely locked to the second engaging portion 31, when the user accidentally drops the tape cassette storage case 10, first, the storage portion When the extension plate portion 35 protruding from the bottom plate 15 of the 11 collides with the floor or table as a contact partner, the side lock portion 14 is rotated, and the extension plate portion 35 is flush with the bottom plate 15 of the storage portion 11. Placed in. The second locking portion 36 is locked to the second engaging portion 31 by the rotation of the side lock portion 14. Therefore, even when the lock such as forgetting to lock the side lock portion 14 is incomplete, the second locking portion 36 is automatically locked to the second engagement portion 31 when the tape cassette storage case 10 is dropped. Can be made. Thereby, it can protect reliably, without the cover part 12 opening carelessly, ie, discharging | emitting the tape cassette 50 accommodated. The above-described operation is the same as when the tape cassette storage case is placed on the desk, and the side lock portion 14 can be locked to the second engagement portion 31 by placing the tape cassette storage case on the desk.

  As shown in FIG. 5, when the second locking portion 36 is locked and locked to the second engaging portion 31 of the storage portion 11, the side lock portion 14 has the hinge portion 37 of the extension plate portion 35. Since it is arranged below the end of the outer wall 26 of the closed lid portion 12, a small distance t <b> 1 (1 mm or less) is provided between the surface of the outer wall 26 of the lid portion 12 and the main body 34 of the side lock portion 14. Is set to Therefore, the second locking portion 36 of the side lock portion 14 is firmly locked to the second engagement portion 31 of the outer wall 26 because the deformation of the side lock portion 14 is small even if an external force is applied to the case. It will not come off easily.

  As described above, according to the tape cassette storage case 10 described above, the user mistakenly tapes the second locking portion 36 of the side lock portion 14 while the second locking portion 36 of the side lock portion 14 is not locked to the second engaging portion 31 of the lid portion 12. Even if the cassette storage case 10 is dropped, the extension plate portion 35 first collides with the floor 51, whereby the second locking portion 36 of the side lock portion 14 is connected to the second engagement portion 31 of the lid portion 12. It is turned to lock it. As a result, the side lock portion 14 is automatically locked when dropped, and the tape cassette 50 can be reliably protected.

  The tape cassette storage case 10 of the present invention is not limited to the embodiment described above, and can be appropriately modified and improved. For example, if the hinge portion 37 of the side lock portion 14 is provided on the bottom plate 15 of the storage portion 11 and the extension plate portion 35 is cut out from the bottom plate 15 of the storage portion 11 and can be independently rotated. The length of the extension plate part 35 can be increased, and the rotation of the side lock part 14 can be promoted. Moreover, in order to relieve the impact force at the time of dropping and colliding with the counterpart member, a buffer means such as a damper may be attached to the outer surface of the extension plate portion.

It is an external appearance perspective view of the open state which shows one Embodiment of the tape cassette storage case which concerns on this invention. It is an external appearance perspective view in the state where the cover part of the tape cassette storage case shown in FIG. 1 was closed to the storage part. It is PP sectional drawing of the tape cassette storage case shown in FIG. (A) is a longitudinal sectional view around the side lock portion when the side lock portion is dropped in an incomplete state in the tape cassette storage case shown in FIG. 1, and (b) is after the tape cassette storage case is dropped. FIG. It is a longitudinal cross-sectional view in the state which locked the side lock part in the tape cassette storage case shown in FIG. It is an external appearance perspective view in the state where the lid part of the conventional tape cassette storage case was closed to the storage part. It is a longitudinal cross-sectional view around the side lock part of the tape cassette storage case shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Tape cassette storage case 11 Storage part 12 Cover part 13 Connection board 14 Side lock part 31 2nd engaging part (engaging part)
34 Main body 35 Extension plate part 36 Second locking part (locking part)
50 tape cassette

Claims (2)

A storage portion having a peripheral wall for storing the tape cassette; a lid portion having an outer wall surrounding the storage portion; a connecting plate hinged to open and close the storage portion and the lid portion; and the outer wall of the lid portion. A tape cassette storage case comprising an engagement portion formed on an outer side surface, and a side lock portion hinged to a part of the peripheral wall of the storage portion and locked to the engagement portion as it rotates. There,
The tape cassette storage case, wherein the side lock portion is hinged to the storage portion at a position closer to the storage portion than the outer wall of the lid portion when the lid portion is closed.   2. The tape cassette storage case according to claim 1, wherein a gap between the side lock portion and the outer wall surface of the lid portion when the lid portion is closed is set to 1 mm or less.

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