JP2005350114A - Storing case for tape cassette - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a storing case for a tape cassette capable of preventing a lock from being unlocked when the case falls. <P>SOLUTION: The storing case comprises a storing part 11 to store a magnetic tape cassette C, a lid part 12 having an outer plate surrounding the storing part 11, a hinge plate part 16 to connect the lid part 12 to the storing part 11 in an opening/closing manner, an engagement part 36 formed on an outer side face of the outer plate 13 of the lid part 12, a lock piece base end part 42 formed on an end edge part opposite to the hinge plate part 16 at the storing part 11, and a lock piece 17 which is supported by the lock piece base end part 42 and can be engaged with the engagement part 36. A rib 37 abutted on an inner face of the lock piece base end part 42 while the lock piece 17 is engaged with the engagement part 36 is provided on the lid part 12. <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, the conventional tape cassette storage case 70 has a hard-type case body, and the case body includes 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 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 unit for storing the magnetic tape cassette, a lid unit having an outer plate surrounding the storage unit, a hinge plate unit for connecting the lid unit to the storage unit so that the lid unit can be opened and closed, and the lid. An engagement portion formed on an outer surface of the outer plate of a portion, a lock piece base end portion formed on an end edge portion of the storage portion opposite to the hinge plate portion, and a lock piece base end portion A lock piece supported via a hinge part and engageable with the engagement part, and the lid part has a lock piece base end in a state where the lock piece is engaged with the engagement part. This is achieved by a tape cassette housing case provided with a rib that abuts against the inner surface of the portion.

  According to the tape cassette housing case, when the engaging portion of the lid portion is engaged with the lock piece, the rib provided on the lid portion is in contact with the inner surface of the lock piece base end portion. State is maintained. Then, when the tape cassette storage case is dropped with the lock piece and the lid engaged, even if a drop impact is applied to the lock piece base end, the lock piece base end is Supporting from the side 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 at the time of dropping.

  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 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. .

  The lid 12 is formed with a square boss 33 having a high height in the shape of a rectangular column inside the opposed 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 curved 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.

  As shown in FIG. 2, the lid 12 has a second engagement portion (engagement portion) 36 standing on the outer surface of the outer plate 13 and extending in the horizontal direction, and an upper end portion of the engagement portion. Two ribs 37 extending in parallel are formed.

  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.

  In the tape cassette storage case 10, the lid 12 is closed with respect to the storage portion 11 in the direction of the arrow in FIG. 1, whereby the first engagement portion 31 is engaged with the first locking portion 32. 1, the lock piece 17 is further raised upward in FIG. 1 via the hinge portion 18, whereby the second locking portion 44 of the lock piece 17 becomes the second engagement of the lid portion 12. This is a so-called double-locking structure that engages and locks with the joint portion 36.

  The rib 37 formed on the outer surface 13 of the lid portion 12 is formed on the inner surface of the lock piece base end portion 42 formed on the end edge portion 40 of the storage portion 11 in a state where the lid portion 12 and the lock piece are locked. It arrange | positions so that it may contact | abut.

Hereinafter, the action of the rib 37 will be described in detail with reference to FIGS.
When the lid portion 12 is closed with respect to the storage portion 11, as shown in FIG. 3, the lid portion 12 is moved in the direction of the arrow in the figure. Then, as shown in FIG. 4, the first engagement portion 31 provided on the inner surface of the outer plate 13 of the lid portion 12 is replaced 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 distal end portion 37 a of the rib 37 provided on the outer surface of the outer plate 13 of the lid portion 12 comes into contact with the inner surface of the lock piece base end portion 42.

  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 leading end portion 37 a of the rib 37 of the lid portion 12. Is maintained in contact with the inner surface of the lock piece base end portion 42.

  In the present embodiment, the configuration is such that only the front end portion 37 a of the rib 37 contacts the inner surface of the lock piece base end portion 42, but at least a part of the rib 37 may contact the inner surface of the lock piece base end portion 42. That's fine.

  In the tape cassette storage case 10 of the present embodiment, when the engagement portion 36 of the lid portion 12 and the lock piece 17 are engaged, the rib 37 provided on the lid portion 12 has the lock piece base end portion 42. The state of being in contact with the inner surface of 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 by the rib 37 from the inner surface side, 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, two mutually parallel ribs 37 are provided on the lid portion 12, but the configuration of the ribs 37 is not limited to this. For example, the number of ribs 37 may be one or three or more as long as the rib 37 is configured to contact the inner surface of the lock piece base end portion 42 in a state where the lid portion 12 is locked. The shape of the rib 37 can be deformed if at least a part of the rib 37 abuts against the inner surface of the lock piece base end portion 42 in a state where the lid portion 12 is locked. For example, the rib 37 is separated from the second engagement portion 36. It may be protruding.

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 case, wherein the lid portion is provided with a rib that abuts against an inner surface of the lock piece base end portion in a state where the lock piece is engaged with the engagement portion.

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