JP2006008140A - Accommodation case for tape cassette - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an accommodation case of a tape cassette capable of preventing unlocking when the accommodation case is dropped. <P>SOLUTION: The accommodation case of the tape cassette comprises an accommodation part 11 to accommodate a magnetic tape cassette C, a lid part 12 having an outer plate to surround the accommodation part 11, a hinge plate part 16 to connect the lid part 12 to the accommodation part 11 in an opening/closing manner, an engagement part 36 formed on an outer face of an outer plate 13 of the lid part 12, a lock piece base end 42 formed on an edge part opposite to the hinge plate part 16 on the accommodation part 11, and a lock piece 17 which is supported by the lock piece base end 42 via a hinge part 18 and engaged with the engagement part 36. A rib 45 to abut on the outer plate 13 of the lid part 12 is provided on the lock piece base end 42 with the lock piece 17 engaged with the engagement part 36. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a tape cassette storage case used for storing and protecting a magnetic tape cassette at a broadcasting station.

  In general, a tape cassette used in a broadcasting station is larger and heavier than a commercially available video tape cassette or the like. Therefore, when the tape cassette is dropped, the impact on the tape cassette is great, which causes damage to the tape cassette. For this reason, in order to prevent the tape cassette from being damaged by an impact, the tape cassette is stored in a dedicated synthetic resin storage case during storage or transport.

  As an example of such a conventional tape cassette storage case, a tape cassette storage case including a storage portion, a lid portion, and a hinge portion is known (see, for example, Patent Document 1).

FIG. 6 shows a conventional tape cassette storage case.
As shown in FIG. 6, a conventional tape cassette storage case 70 has a hard-type case body, the case body including a storage portion 71 having four side walls 72, a lid portion 73 having three side walls 74, The bottom plate 75 of the storage portion 71 and the top plate 76 of the lid portion 73 are connected by hinges 77 and 78, and a connecting portion 79 that becomes one side wall of the lid portion 73 when the lid portion 73 is closed.

  Inside the lid portion 73, side wall lock portions 80 having flanges 81 are formed at both ends of the side wall 74 on the front side opposite to the connecting portion 79. When the lid portion 73 is closed, the flange portion 81 is locked in a locking hole 82 formed in the side wall 72 of the storage portion 71.

  Further, the tape cassette storage case 70 is provided with a side lock portion 84 on the front side opposite to the connecting portion 79 by omitting the outer peripheral edge portion 83. The side lock portion 84 is connected to the bottom plate 75 of the storage portion 71 via a hinge 85, and a flap plate 86 is provided. When the side lock portion 84 is superimposed on the side wall 74 of the closed lid portion 73, the side lock portion 84 is attached to the flap plate 86. The formed collar portion 87 is locked by being locked to a locking portion (not shown) on the outer surface of the side wall 74 of the lid portion 73.

JP 2002-179176 A

  However, in the tape cassette storage case 70, when the tape cassette storage case 70 with the side lock portion 84 locked is dropped, the impact of the drop is applied to the side lock portion 84, so that the side lock portion 84 is bent. Due to the occurrence, the side lock portion 84 may come off the locking portion. And the magnetic tape cassette accommodated from the fallen storage case 70 may jump out and damage the magnetic tape cassette.

  The present invention has been made in view of the above-described circumstances, and an object of the present invention is to provide a tape cassette storage case that can more reliably prevent the lock from being released when dropped.

  The object of the present invention is to provide a storage part for storing a tape cassette, a cover part having an outer plate surrounding the storage part, a hinge plate part for connecting the cover part to the storage part so that the cover part can be opened and closed, and the cover part. An engaging portion formed on an outer surface of the outer plate, a lock piece base end portion formed on an end edge portion of the storage portion opposite to the hinge plate portion, and a hinge on the lock piece base end portion A locking piece that is supported via a locking part and engageable with the engaging part, and the lid part is in a state where the locking piece is engaged with the engaging part at the base part of the locking piece. This is achieved by a tape cassette storage case provided with a rib that abuts against the outer plate.

  According to the tape cassette storage case, the rib provided on the base end of the lock piece is in contact with the outer plate of the cover when the engaging portion of the cover and the lock piece are engaged. State is maintained. Then, when the tape cassette storage case is dropped with the lock piece engaged with the lid, the lock piece base end is supported by the rib even if a drop impact is applied to the lock piece base end. This prevents the lock piece base end from being bent. For this reason, by preventing the lock piece base end portion from being bent, it is possible to prevent the lock piece connected to the lock piece base end portion from being subjected to a deformation load due to the bend, and the lock piece is attached to the lid portion. The release from the engaging portion can be prevented. Therefore, it is possible to prevent the magnetic tape cassette from jumping out of the storage portion and being damaged by making it difficult for the lock piece to come off due to an impact when dropped.

  ADVANTAGE OF THE INVENTION According to this invention, the storage case for tape cassettes which can prevent that a lock | rock is removed at the time of dropping can be provided.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, preferred embodiments of the invention will be described in detail with reference to the drawings. FIG. 1 is an external perspective view of an open state showing an embodiment of a tape cassette storage case according to the present invention. FIG. 2 is a partially enlarged view of the tape cassette storage case shown in FIG. 3 to 5 are cross-sectional views taken along line AA showing the configuration of the tape cassette storage case shown in FIG. 1, FIG. 3 shows a state before the lid is closed, and FIG. FIG. 5 shows a state where the lid is closed and before the lock piece is locked, and FIG. 5 shows a state where the lid is closed and the lock piece is locked.

  As shown in FIG. 1, the tape cassette storage case 10 includes a storage portion 11 that stores the magnetic tape cassette C, a lid portion 12 having outer plates 13, 14, and 15 surrounding the storage portion 11, and a storage portion 11. And the hinge board part 16 which connects the cover part 12 so that opening and closing is possible, and the lock piece 17 movably connected with respect to the accommodating part 11 via the hinge part 18 are comprised by integral molding. The tape cassette storage case 10 is molded from a polymer resin such as polypropylene (PP).

  Peripheral plates 20, 21, 22 and 23 are provided upright on the outer edge portion of the bottom plate 19 of the storage unit 11 so as to surround the periphery. The peripheral plate 20 is arranged on the front side of the storage unit 11, the peripheral plate 21 is arranged on the back side of the storage unit 11, and the peripheral plates 22 and 23 are arranged on the left and right side sides of the storage unit 11. Concave portions 24, 25, 26, and 27 are formed in the center portions of the peripheral plates 20, 21, 22, and 23, respectively, so as to be cut out so as to be low in height.

  In the storage portion 11, a pair of reel locking ribs 28 are formed in the center portion of the bottom plate 19. The reel locking rib 28 has a cylindrical shape divided into a plurality of circumferential directions by slits. By inserting a take-up hub (not shown) of the magnetic tape cassette C into the reel locking rib 28, the magnetic tape cassette C is positioned in the storage portion 11.

  In the storage portion 11, first engaging portions 30 are formed on both sides of the recess 24 on the front surface of the peripheral plate 20. First locking portions 31 are formed at both inner surface side ends of the outer plate 13 positioned on the hinge plate portion 16 side. When the lid portion 12 is closed, the first engaging portion 30 and the first locking portion 31 are configured to engage with each other.

  On the lid 12, outer plates 13, 14, 15 arranged on the outer edge of the top plate 32 so as to surround three sides are formed upright on the top plate 32. The outer plate 13 is formed so as to be positioned in front of the storage unit 11 in a state where the cover 12 is covered with the storage unit 11, and the outer plates 14 and 15 are formed so as to be positioned on both side surfaces of the storage unit 11. .

  In the lid portion 12, square bosses 33 having a high height are formed on the inner surfaces of the outer plates 14 and 15. When the lid portion 12 is closed with respect to the storage portion 11, the square boss 33 is interposed between the outer side surfaces of the peripheral plates 22 and 23 of the storage portion 11 and the inner side surfaces of the outer plates 14 and 15 of the lid portion 12. It is provided so that it may be located, and it guides so that the closed cover part 12 may become an appropriate position.

  The hinge plate portion 16 is formed in a plate shape between the storage portion 11 and the lid portion 12. Hinges 34 and 35 are formed on the edge of the hinge plate portion 16 that is connected to the storage portion 11 and the lid portion 12. One hinge 34 is connected to one side of the bottom plate 19 of the storage portion 11, and the other hinge 35 is connected to one side of the top plate 32 of the lid portion 12.

  A plate-like lock piece 17 having a trapezoidal shape is connected to the approximate center of the end edge portion 40 of the peripheral plate 20 of the storage portion 11. A second locking portion 44 is formed at the distal end portion of the lock piece 17.

  The lid portion 12 is formed with a second engagement portion (engagement portion) 36 standing on the outer surface of the outer plate 13 and extending in the horizontal direction.

  As shown in FIGS. 3, 4, and 5, an end edge portion 40 projects from the peripheral plate 20 of the storage portion 11 along the outer surface of the lower end portion. An extending portion 41 extending horizontally at the substantially center of the end edge portion 40, and a lock piece base end erected from the end portion of the extending portion 41 obliquely leftward and upward at an angle of about 45 ° Part 42 is provided. The lock piece base end portion 42 has a shape recessed toward the inside of the storage portion 11 with respect to the other portion 43 in the end edge portion 40 of the peripheral plate 20 in the cross-sectional view of FIG. 3.

  The lock piece 17 is connected to the distal end portion of the lock piece base end portion 42 via the hinge portion 18. The lock piece 17 is configured to be folded toward the peripheral plate 20 side by being rotated by the hinge portion 18. And in the state which closed the cover part 12 with respect to the accommodating part 11, the lower end part of the 2nd engaging part 36 engages with the 2nd latching | locking part of the lock piece 17, and the cover part 12 is locked. be able to.

  The tape cassette storage case 10 is further closed after the lid portion 12 is closed with respect to the storage portion 11 so that the first engagement portions 30 are engaged with the first locking portions 31 and locked. When the lock piece 17 rises upward in FIG. 1 via the hinge portion 18, the second locking portion 44 of the lock piece 17 is engaged with the second engagement portion 36 of the lid portion 12. So-called double-locking.

  As shown in FIGS. 2 and 3, the lock piece base end portion 42 has a pair of ribs 45 so as to protrude in parallel to the extending portion 41 toward the peripheral plate 20 side of the storage portion 11. Is formed. Both of the pair of ribs 45 have the same shape and are spaced from each other in the longitudinal direction of the hinge portion 18. In the present embodiment, the rib 45 is provided so as to come into contact with the outer surface of the outer plate 13 of the lid 12 when the lid 12 is closed to the storage unit 11.

Hereinafter, the operation of the rib 45 will be described in detail with reference to FIGS.
When the lid 12 is closed with respect to the storage unit 11 (closed state), the lid 12 is moved in the direction of the arrow in the figure as shown in FIG. Then, as shown in FIG. 4, the first engaging portion 31 provided on the inner surface of the outer plate 13 of the lid portion 12 is engaged with the first engagement provided on the outer side of the peripheral plate 20 on the front side of the storage portion 11. Engage with part 30. At this time, the tip 45 a of the rib 45 provided on the inner surface of the lock piece base end 42 contacts the outer surface of the outer plate 13 of the lid 12.

  Further, in order to lock the lid portion 12 in the closed state, the lock piece 17 is folded in the direction of the arrow as shown in FIG. The portion 44 is engaged with a second engagement portion 36 provided on the outer surface of the outer plate 13 of the lid portion 12. Even when the second engaging portion 36 of the lid portion 12 and the second engaging portion 44 of the lock piece 17 are engaged to bring the lid portion 12 into the locked state, the rib 45 of the lock piece base end portion 42 is The state where the tip 45a is in contact with the outer surface of the outer plate 13 of the lid 12 is maintained.

  In the present embodiment, only the tip 45a of the rib 45 is configured to contact the outer plate 13 of the lid 12; however, any configuration may be used as long as at least a part of the rib 45 contacts the outer plate 13 of the lid 12. .

  According to the tape cassette storage case 10 of the present embodiment, when the engaging portion 36 of the lid portion 12 and the engaging portion 44 of the lock piece 17 are engaged, the tape cassette storage case 10 is provided at the lock piece base end portion 42. The state where the rib 45 is in contact with the outer surface of the outer plate 13 of the lid 12 is maintained. Then, when the tape cassette storage case 10 is dropped with the lock piece 17 and the lid 12 engaged, a drop impact is applied to the lock piece base end 42 from the direction indicated by the arrow in FIG. However, since the lock piece base end portion 42 is supported from the inner surface side by the rib 45, the lock piece base end portion 42 is prevented from being bent. Therefore, by preventing the lock piece base end portion 42 from being bent, it is possible to prevent the lock piece 17 connected to the lock piece base end portion 42 from being subjected to a deformation load due to the bend. Can be prevented from coming off from the engaging portion 36 of the lid portion 12. Therefore, it is possible to make it difficult for the lock piece 17 to come off due to an impact at the time of dropping, and it is possible to prevent the magnetic tape cassette C from jumping out of the storage portion 11 and being damaged.

  In the present embodiment, as shown in FIG. 2, the pair of ribs 45 is configured to be provided on the lock piece base end portion 42, but the configuration of the ribs 45 is not limited thereto. For example, the number of ribs 45 may be one or three or more as long as the rib 45 is configured to come into contact with the outer plate 13 of the lid 12 while the lid 12 is locked. The shape of the rib 45 may be changed as appropriate as long as at least a part of the rib 45 comes into contact with the lid 12 while the lid 12 is locked.

  Further, it is preferable that a predetermined gap is provided between the rib 45 of the lock piece base end portion 42 and the extending portion 41. In this way, when locking the locking portion 44 of the lock piece 17 to the engaging portion 36 of the lid portion 12 or releasing from the engaging portion 36 of the lid portion 12, the lock piece base end portion 42 is appropriately bent. be able to. For this reason, when the lock piece 17 is engaged with the engaging portion, the lock piece base end 42 cannot be bent at all by the rib 454, so that the lock piece 17 is engaged with the lid portion 12. The problem of becoming difficult can be solved. Moreover, when removing the engaged lock piece 17, it becomes easy to remove by appropriately bending the lock piece base end part 42, and it is easy to use. The predetermined gap between the rib 45 and the extending portion 41 is preferably 0.2 mm to 1 mm.

In addition, this invention is not limited to embodiment mentioned above, A deformation | transformation, improvement, etc. are possible suitably.
For example, the shape of the lock piece 17 is not limited to a trapezoidal shape in plan view as in the above embodiment, and may be a quadrangular shape or a semicircular shape.

It is an external appearance perspective view of the open state which shows one Embodiment of the storage case for tape cassettes which concerns on this invention. It is the figure seen from the arrow B direction in the storage case for tape cassettes shown in FIG. It is sectional drawing which shows the state before closing a cover part in the AA line direction of the storage case for tape cassettes shown in FIG. It is sectional drawing which shows the state before locking a lock piece in the state which closed the cover part in the AA line direction of the storage case for tape cassettes shown in FIG. It is sectional drawing which shows the state which closed the cover part and locked the lock piece in the AA line direction of the storage case for tape cassettes shown in FIG. It is a figure which shows the open state of the conventional storage case for tape cassettes.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Tape cassette storage case 11 Storage part 12 Cover part 13, 14, 15 Outer plate 17 Lock piece 18 Hinge part 36 2nd engaging part 37 Rib 42 Lock piece base end part C Magnetic tape cassette

Claims (1)

A storage section for storing the magnetic tape cassette;
A lid portion having an outer plate surrounding the storage portion;
A hinge plate for connecting the lid to the storage portion so as to be openable and closable;
An engaging portion formed on the outer surface of the outer plate of the lid portion;
A lock piece base end portion formed on an end edge portion of the storage portion opposite to the hinge plate portion;
A lock piece supported on the base end portion of the lock piece via a hinge portion and engageable with the engagement portion;
The tape cassette housing, wherein the lock piece base end portion is provided with a rib that contacts the outer plate of the lid portion in a state where the lock piece is engaged with the engagement portion. Case.

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