JPH0444980A - Cassette case - Google Patents

Abstract

PURPOSE:To prevent projecting parts from being subjected to any shock when a cassette case is dropped by a method, in a cassette case for receiving a tape cassette having projecting parts at both sides thereof, stepped parts are provided to receive both sides of the tape cassette in such a manner as to avoid the contact of the projecting parts with the left and right inner side walls. CONSTITUTION:Given that the width between the left and right sides 1a and 1b of a tape cassette 1 is A1, the width between these sides including projecting parts 4a and 4b is A2, the width between the inner surfaces of the left and right side walls 27a and 27b of the cassette retaining part 27 of a lid body 22 is B1 and the width between the stepped parts 28a and 28b of these side walls is B2, the dimensional relationship between each member is established to meet the requirements of B2>A1, B1>A2 and B1-A2>B2-A1. In such structure, when the tape cassette 1 is placed in a cassette case, the side part 1a or 1b of the tape cassette 1 is received by the stepped parts 28a and 28b before the projecting parts 4a or 4b comes in contact with the inner surface of the side wall 27a or 27b of the cassette retaining part 27.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a cassette case for storing a tape cassette.

[Summary of the Invention] The present invention provides a cassette case for storing a tape cassette having protrusions on both left and right sides, such as a compact audio cassette, which is structured to receive the sides of the tape cassette at a portion avoiding the protrusions. This prevents clutter from occurring on the protrusion during a fall impact.

[Conventional technology]

Generally, tape cassettes are stored in a plastic cassette case when not in use.

A conventional example of this cassette case will be explained with reference to FIGS. 8 and 9.

In the figure, (1) shows a generally popular audio compact cassette (hereinafter referred to as a tape cassette), and the external shape of this tape cassette (1) is determined by the standard. There are a pair of reel shaft insertion holes (2a) (2b) on the left and right in the center of the
), and the front part has a trapezoidal bulge (3) that forms the front opening (exposed part of the magnetic tape into which the magnetic head, pinch roller, etc.
a) (lb) has guide protrusions (4a) (4b)
) is provided protrudingly.

(10) indicates a cassette case that stores this tape cassette (1), and this cassette case (10) includes a casing (11) as a main body of the cassenode case, and a lid body (12).
), the casing (11) and the lid (12)
) is pivotally connected via a hinge part (13) so that it can be rotated to open and close.

On the casing (work 1) side, locking protrusions (14a) (14b) are inserted into the reel shaft insertion holes (2a) (2b) of the tape cassette (1) to prevent unnecessary rotation of the reel hub inside the tape cassette. ) is formed, while the lid body (1
A cassette holding section (15) for holding the tape cassette (1) is provided on the 2) side.

The cassette holding part (15) of this lid (12) is formed into a bag shape (pocket shape), and when the lid (12) is open, the tape cassette (15) is held in the bag-like cassette holding part (15). 1) from the front bulge (3) side, the tape cassette (1) is held so as to rotate integrally with the lid (12), and in this state, the lid (12) is inserted. 12)
By closing the tape cassette (1), the tape cassette (1) is stored in the casing (11), and when the lid (12) is opened from this cassette storage state, the tape cassette (1) is integrated with the casing (11). ).

[Problem to be solved by the invention]

In the conventional cassette case (10) constructed in this way, as shown in FIG.
(15a) and (1) of the cassette holder (15) for the width of the tape cassette (1) including
Since the dimensions between the inner surfaces of 5b) are set with a certain margin, if the cassette case (10) falls with the tape cassette (1) stored therein (particularly if it falls with the side facing down), The protrusion of the tape cassette (1) (
4a) or (4b) is the side wall (
15a) or (1, 5b), and the impact could have caused cracks or chips in the protrusions (4a) (4b).
) has a small protruding shape, so it is weaker in strength than other parts and prone to cracking and chipping).

The present invention has been made in view of the above problems, and an object of the present invention is to provide a cassette case having a novel cassette holding structure to solve the above-mentioned problems.

[Means to solve the problem]

In order to achieve the above object, the present invention provides a cassette case for storing a tape cassette having protrusions on both left and right sides. It is provided with a stepped portion for receiving.

[Function] With this configuration, when the cassette case falls, the side of the tape cassette is received by the protrusion, the protrusion does not hit the inner surface of the side wall of the cassette case, and therefore no impact is applied to the protrusion. is not applied, so no cranking or the like occurs.

[Example] Hereinafter, an example of the present invention will be described with reference to FIGS. 1 to 7.

1 to 4 show a first embodiment of the present invention. In the figures, (20) shows the cassette case as a whole according to the present invention, and this cassette case (20) is a casing (21) as a main body of the cassette throat case. ) and a lid body (22), and the casing (21) and lid body (22) are pivotally connected via a hinge portion (23) so as to be freely openable and closable.

As shown in Fig. 4, the structure of this hinge part (23) is that the lid body (
The shaft protrusion (25) protruding from the casing (22) side is engaged with the casing (22), and the casing (22) is
1), the lid body (22) is rotated to open and close. Further, the tip (25a) of the shaft projection (25) is formed into an R shape, that is, a spherical shape, so that when the casing (21) and the lid (22) are combined, the lid (22) is attached to the casing (21). The shaft projection (25) can be easily engaged with the shaft hole (24) by simply pushing the shaft.

The inner surface of the casing (21) of the cassette case (20) thus combined is inserted into the reel shaft insertion hole (2a) (2b) of the tape cassette (1), eliminating the need for a reel hub inside the tape cassette. Locking protrusions (26a) and (26b) are formed to prevent rotation, and a cassette holding portion (27) for holding the tape cassette (1) is provided on the lid (22) side.

The cassette holding part (27) of this lid body (22) is formed into a bag shape (pocket shape), and the tape cassette (1) is held in the bag-like cassette holding part (27) with a bulge in the front part. By inserting the tape cassette (1) from the side (3),
) is held so as to rotate integrally with the lid (22).

In the cassette holding part (27), convex parts (28a) (28b) protruding from the inner surfaces of both side walls (27a) (27b) are formed at the left and right corners of the interior thereof. 28a) (28b) has a structure in which the left and right sides (la) and (lb) of the tape cassette (1) are received at parts other than the projections (4a) and (4b).

That is, in the above configuration, the width between the left and right sides (la) and (1b) of the tape cassette (1) is AI, the width including the projections (4a) and (4b) on both sides is A2, and the lid body ( 22)
The left and right side walls (27a) of the cassette holding part (27)
) and (27b), the width between the inner surfaces is Bl, and the convex portions on both sides (
Assuming that the width between 28a) and (28b) is B2, the dimensional relationship between each part is B z > A, +, B + >
A z and Bl-Az>Bz AI. That is, when the tape cassette (1) is stored in the cassette case of this example, the inner surfaces of the side walls (27a) (27b) of the cassette holding part (27) and the projections (4a) (4b) of the tape cassette (1) Since the gap between the protrusions (28a) (28b) and the sides (la) (lb) of the tape cassette (1) is smaller than the gap between the protrusions (4a) and Or (4
b) is the side wall (27a) of the cassette holder (27) or (
27b) before hitting the inner side of the side (1a) or (
1b) will be received by the protrusion (28a) or (28b) (i.e. the protrusion (4a) (4b) will be received by the side wall (27a)
) does not hit the inner surface of (27b)).

Therefore, if the cassette case (20) falls, the sides (1a) or (1b) of the tape cassette (1)
8a) or (28b), and the impact is transmitted to the convex part (28
a) or (28b), that is, no impact is applied to the projections (4a) (4b), so no cracks or chips will occur in the projections (4a) (4b).

In addition, in the cassette case of this example, by forming the convex portions (28a) (28b) in the cassette holding portion (27), the cross-sectional area of the portion receiving the impact increases, which increases the strength accordingly. It also has

5 to 7 show a second embodiment of the present invention, and parts corresponding to those of the first embodiment described above are given the same reference numerals, but in this embodiment, the lid body is (22), attach the tape cassette (1) to its both sides (la) (Ib).
It has a structure in which it is held using protrusions (4a) and (4b) protruding from the sides.

In other words, the cassette holder (27) in this example does not have a bag shape as in the conventional example and the first example, but has a shape with open walls between the left and right side walls (27a) and (27b). In addition, protrusions (28a) (28b) projecting inward are provided on the tip edges of both side walls (27a) (27b), and the tape cassette (1) is held in the cassette holding portion (
27), this convex part (28a) (28b
) so that the tape cassette (1) is held by the cassette holding part (27), and the tape cassette (1) is held by the protrusions (28a) and (28b). ) side parts (1a) (1b) can be received.

That is, in the above configuration, the width between both sides (1a) and (1b) of the tape cassette (1) is AH1, and the protrusions on both sides (
The width including 4a) and (4b) is A2, and one side (
The width between 1a) or (1b) and the protrusion (4b) or (4a) on the opposite side is A3, and both side walls (27a) and (27b) of the cassette holding part (27) of the lid (22) are )
The width between the inner surfaces is B1, and the convex parts (28a) and (2
If the width between 8b) is B2, the dimensional relationship between each part is B
z>A, +, B+>At, and A3>82. Therefore, when the tape cassette (1) is inserted into the cassette holder (27), the tape cassette (1) will not touch the protrusion (4a). ) (4b), the convex portion (28a) (2
8b).

Also in the configuration of this example, as in the first example, B+ Az>Bz AI is set, so that if the cassette case (20) falls, the tape cassette (1) ) or (4b) hits the inner surface of the side wall (27a) or (27b) of the cassette holding part (27), the side part (1a) or (1b) is received by the convex part (28a) or (28b) Therefore, no impact is applied to the protrusions (4a) (4b), so that no cracks or chips occur in the protrusions (4a) (4b).

In addition, in the cassette case of this example, the casing (2
1) and the lid body (22), there is a recess (29) in which the trapezoidal bulge (3) of the tape cassette (1) is accommodated.
and (30) are formed.

By adopting the above configuration, the cassette case of this example can be made thinner than conventional cassette cases, and in addition, cracks may occur on the protrusions of the tape cassette when the cassette case is dropped. That's true (,
Therefore, it is possible to realize a cassette case that is thin and highly safe for tape cassettes.

Although the embodiments of the present invention have been described above, it goes without saying that the present invention is not limited to the configuration of the above embodiments and can take various embodiments.

(Effects of the Invention) As is clear from the above description, the present invention provides a cassette case for storing a tape cassette having protrusions on both left and right sides. By providing protrusions to receive both sides, it is possible to prevent cracks and chips that would conventionally occur on the protrusions on the sides of the tape cassette when the cassette case falls, making the tape cassette highly safe. case can be provided.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing the first embodiment of the cassette case according to the present invention, FIGS. 2A and B are explanatory diagrams of the dimensional relationship between the tape cassette and the cassette case, and FIG. 3 is an explanation of the tape cassette storage state. 4 is an exploded view of the casing and the lid, FIG. 5 is a perspective view showing a second embodiment of the cassette case according to the present invention, and FIGS. 6 A and B are dimensional relationships between the tape cassette and the cassette case. FIG. 7 is an explanatory view of the tape cassette in the stored state, FIG. 8 is a perspective view of a conventional cassette case, and FIG. 9 is an explanatory view of the tape cassette in the stored state. In the figure, (1) is a tape cassette, (la) and (Ib) are its sides, (4a) and (4b) are protrusions, (20) is a cassette case, (21) is a casing, and (22) is a lid body. , (27) are cassette holding parts, (27a) (27b)
are its side walls, and (28a) and (28b) are convex portions. Agent Hidemori Matsukuma B List of explanations regarding the loss of tape and the length of one cassette case "Cheer cassette, collection system" Daikon Figure 3 Cage shift and lid water distribution Figure 4 Figure B Tape cassette and sword set L case's appearance Chi 1
7-table cassette MZ series J length hanging. Figure 7 Perspective mouth view

Claims (1)

[Claims] This cassette case houses a tape cassette having protrusions on both left and right sides, and is provided with a convex part for receiving the side part of the tape cassette in a state where the protrusion does not touch the inner surface of the left and right side walls.