JPH072292U - Protective case for cassette tape - Google Patents

Abstract

(57) [Summary] [Objective] To provide a protective case in which the upper and lower lids can be easily opened and closed, and the cassette tape can be easily inserted and removed. [Structure] A locking piece 4 is hung on the inner surface side of a front side wall 3a forming the upper cover body 2, and an upper cover body locking piece is provided on the inner surface side of a front side wall 7a of a lower cover body 6 having a symmetrical shape with the upper cover body 2. 4 is provided with a concave portion 9 for engaging with the claw 4a, and the bottom wall 6a of the lower lid 6 is provided with a slip stopper 8 to be inserted into the take-up hub H of the cassette tape T, and is cut upward from a part of the bottom wall 6a. An inclined leaf spring 16 is provided, and the upper and lower lids 2,
The flexible pieces 5 are attached to the rear side walls 3b and 7b of the bridge 6 so as to straddle them.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a protective case for storing a cassette tape.

[0002]

[Prior art]

 A cassette tape for audio (also referred to as a cassette) is one in which a winding hub for magnetic tape is fitted into two parts of the case as appropriate, and the magnetic tape is wound or rewound by rotating the hub. It is the one that is set in the audio device while it is still in place, and recorded and played back. This cassette tape is usually stored in a protective case to protect the recording part of the magnetic tape when not in use.

As shown in FIG. 13, the protective case includes a lower lid body 6 having a bottom wall 6a provided with idle stoppers 8 to be inserted into the take-up hub H of the cassette tape T, and an upper lid body fitted to the lower lid body 6. 2 is integrally molded through a bendable hinge F, and the hinge F is bent so that the upper lid 2 can be opened and closed, or the upper lid 2 and the lower lid 6 are separately molded, and the upper lid 2 The folded portion D is provided at the rear portion, the opening E into which the upper lid folded portion D is inserted is provided at the rear portion of the lower lid body 6, and the cassette tape winding hub H is inserted into the bottom wall 6a of the lower lid body 6. The idling stopper 8 is provided, and the shaft portion e is provided on the opening side of both side walls, and the shaft portion e is inserted into the bearing holes d provided on both sides of the upper cover body folding portion D, so that the upper cover body 2 can be opened and closed. To

[0004]

[Problems to be solved by the device]

 In the case where the upper lid and the lower lid are integrally molded, when taking out the cassette tape stored in the case, after opening the upper lid, you have to put your fingers into the through hole of the bottom wall and push up the cassette tape. There was a troublesome problem. In the case where the upper lid and the lower lid are pivotally supported so that they can be opened and closed, there is a problem in that the upper and lower lids must be pivotally supported by using elastic force. The insertion and removal of the cassette tape was also troublesome due to the insertion of the. The present invention has been made in view of the above problems of the prior art, and an object thereof is to provide a protective case in which the upper and lower lids can be easily opened and closed and the cassette tape can be easily inserted and removed. To provide.

[0005]

[Means for Solving the Problems]

 In order to achieve the above object, the cassette tape protective case according to the present invention has a locking piece hung on the inner surface side of the front side wall forming the upper cover, and the front side wall of the lower cover forming a symmetrical shape with the upper cover. The inner surface is provided with a recess that engages with the claw of the upper lid locking piece, and the bottom wall of the lower lid has a slip-prevention stopper that is inserted into the cassette tape take-up hub. An inclined leaf spring is provided, and flexible pieces are attached to the rear side walls of the upper and lower lids.

[0006]

【Example】

 Hereinafter, the structure of the cassette tape protective case according to the present invention will be described with reference to FIG. 1. In the protective case 1, the locking piece 4 is hung on the inner surface side of the front side wall 3a forming the upper lid body 2 to form the upper lid body 2. A recess 9 that engages with the engaging piece 4 of the upper lid 2 is provided on the inner surface side of the front side wall 7a of the lower lid 6 having a symmetrical shape, and the bottom wall 6a of the lower lid 6 has a winding hub for the cassette tape T. A slip stopper 8 to be inserted into H and a leaf spring 16 which is inclined upward from the bottom wall 6a are provided, and the flexible pieces 5 are attached to the rear side walls 3b and 7b of the upper and lower lids 2 and 6, respectively. is there.

The upper lid 2 and the lower lid 6 are preferably made of a transparent synthetic resin, but can be made of a colored transparent synthetic resin whose inside is visible. As shown in FIGS. 2 to 4, the upper lid 2 hangs a side wall 3 below the periphery of a rectangular top wall 2a, and a knob 12 is provided on the outer surface side of the central portion of the front side wall 3a and the inner surface of the front side wall 3a. A locking piece 4 is hung below the left and right sides, and a claw 4a protruding outward is formed at the tip of the locking piece 4.

As shown in FIGS. 5 to 7, the lower lid 6 is provided with a side wall 7 standing above the periphery of a rectangular bottom wall 6a, and the claw 4a of the upper lid locking piece 4 is provided on the inner surface side of the front side wall 7a. The recesses 9 are provided to engage with the left and right side walls 7c, and the fitting walls 17 to be inserted into the upper lid 2 are provided near the front edges of the left and right side walls 7c, and the bottom wall 6a is inserted into the winding hub H of the cassette tape T. 8 is provided in a protruding manner, and a leaf spring 16 is formed on the side of the bottom wall 6a, which is cut upward from a part of the bottom wall 6a and is inclined highly toward the front edge.

The idling stopper 8 projecting from the bottom wall 6a of the lower lid body 6 may be of any shape as long as it is inserted into the take-up hub H of the cassette tape T and fitted between the hub claws h. is there. The fitting wall 17 protruding from the left and right side walls 7c of the lower lid 6 is formed by extending the inner side half thickness of the left and right side walls 7c, and the fitting wall 17 is fitted on the inner side of the upper lid left and right side walls 3c. A fitting concave portion 14 is provided and is fitted into the fitting concave portion 14, or is provided so as to project from the inner surface side of the left and right side walls 7c as shown in FIG. 12, and is fitted along the inner surface of the left and right side wall 3c of the upper lid.

The side wall 3 of the upper lid 2 and the side wall 7 of the lower lid 6 are formed in an arc shape so as to be slightly wider toward the joint surface, and the locking piece 4 is hung below the inner surface side of the arc-shaped front side wall 3a. However, if the concave portion 9 is formed on the inner surface side of the arcuate front side wall 7a, it is possible to facilitate the fitting and removal of the locking piece 4 and the concave portion 9. As the knob 12 provided on the front side wall 3a of the upper lid, a knob 12 is projected on the outer surface of the front side wall 3a as shown in FIGS. 8 to 10, or the knob 12 is hung from the outer surface of the front side wall 3a, or a knob on the upper lid 2. Instead of forming 12, the concave groove 19 may be formed on the outer surface of the lower lid front side wall 7a.

As the flexible piece 5 that is attached across the rear side walls 3b and 7b of the upper and lower lids 2 and 6, a flexible synthetic resin tape that can be bent is attached with an adhesive, or the resin tape is attached to the rear side. The side walls 3b and 7b are heat-sealed, or the adhesive tape is attached across the rear side walls 3b and 7b. The rear side walls 3b and 7b of the upper and lower lids 2 and 6 are provided with concave step portions 13 and 18 corresponding to the thickness and width of the flexible piece 5, and the flexible step 5 is formed on the concave step portions 13 and 18 as shown in FIG. It is also possible to install.

Since the cassette tape protective case of the present invention has the above-mentioned structure, the cassette tape T is inserted into the lower lid body 6, the upper lid body 2 is fitted into the lower lid body 6, and the front lid side wall 3a of the upper lid body is attached. After the locking piece 4 is locked in the recess 9 in the front side wall 7a of the lower lid, the upper and lower lids 2 and 6 are closed with difficulty, and then the flexible pieces are attached to the rear side walls 3b and 7b of the upper and lower lids 2 and 6. It will be installed across 5. The leaf spring 16 falls slightly toward the bottom wall 6a under the weight of the cassette tape T, and is urged toward the bottom wall 6a when the upper lid 2 is closed.

When the cassette tape T stored in the protective case of the present invention is taken out, the knob 12 of the closed upper lid body 2 is pushed up in the opening direction by fingers, and the upper lid locking piece 4 and the lower lid recess 9 are formed. When the lock is released, the cassette tape T is pushed upward from the bottom wall 6a by the repulsive force of the leaf spring 16 that has been biased, and by pushing the cassette tape T, the upper lid 6 hinges the flexible piece 5. As it swings open. The cassette tape T can be taken out by further swinging the opened upper lid 6 by the repulsive force of the leaf spring 16.

The cassette tape protective case of the present invention is not limited to the above structure, and the same purpose can be achieved by providing the leaf spring 16 at the center of the bottom wall 6a, and the lower lid 6 The fitting walls 17 provided on the left and right side walls 7c of the upper lid 2 can be provided on the left and right side walls 3c of the upper lid 2, and the locking pieces 4 provided on the front side wall 3a of the upper lid 2 and the front side wall of the lower lid 6 can be provided. It is also possible to provide the recess 9 provided in 7a in the opposite way. Further, the shapes of the locking pieces 4, the recesses 9 and the leaf springs 16 can be appropriately changed without departing from the gist of the present invention.

[0015]

[Effect of device]

 Since the cassette tape protective case of the present invention is configured as described above, it has the following effects. Since the upper and lower lids which are separately formed are fitted to each other, and then the flexible piece is attached to the side wall so as to straddle the front side wall, the assembling of the protective case becomes extremely easy and easy. Moreover, the cassette tape is put in the lower lid, and the upper lid is fitted and locked into the lower lid to be stored. By releasing the lock of the upper and lower lids, the storage cassette tape is cut and raised from the bottom wall of the lower lid. Since it is extruded by using a cable, it is extremely easy to insert and remove the cassette tape.

[Brief description of drawings]

FIG. 1 is a partially cutaway side view of a protective case for a cassette tape of the present invention.

FIG. 2 is a side view showing a main structure by cutting out a part of an upper lid.

FIG. 3 is a bottom view of the main part of the upper lid.

FIG. 4 is a partially cutaway front view of an upper lid.

FIG. 5 is a plan view of a main part of a lower lid.

FIG. 6 is a cross-sectional view of a lower lid body showing an example of forming a leaf spring.

FIG. 7 is a partially cutaway side view showing an example of forming a recess.

8 (A) and 8 (B) are a front view and a cross-sectional view of a main part showing an example of a locking structure of upper and lower lids.

9 (A) and 9 (B) are a front view and a sectional view of a main part showing an example of a locking structure of the upper and lower lids.

10 (A) and 10 (B) are a front view and a sectional view of a main part showing an example of a locking structure of upper and lower lids.

11 (A) and 11 (B) are a rear view and a cross-sectional view of an essential part showing an example of how the flexible pieces (A) and (B) are attached.

FIG. 12 is a partially cutaway side view showing an example of opening a protective case.

13 (A) and 13 (B) are perspective views of a conventional protective case.

FIG. 14 is a plan view of a cassette tape.

[Explanation of symbols]

1 Protective Case 2 Upper Lid 4 Locking Piece, 4a Claw of Locking Piece 5 Flexible Piece 6 Lower Lid 3,7 Sidewall, 3a, 7a Front Sidewall, 3b, 7b Rear Sidewall 8 Idling Stop 9 Recess 12 Pick, 16 Leaf spring, 17 mating wall, 13, 18 concave step,
19 Recessed groove D Top cover folding back part, d Bearing hole, E opening part, e shaft part, F hinge H winding hub, h hub claw, T cassette tape

Claims (1)

[Scope of utility model registration request] 1. A front side wall (7a) of a lower lid (6) having a symmetrical shape with the upper lid by suspending a locking piece (4) on the inner surface side of the front side wall (3a) forming the upper lid (2). ) Is provided with a recess (9) for engaging with the claw (4a) of the upper lid locking piece, and the bottom wall (6a) of the lower lid is provided.
A slip stopper (8) to be inserted into the take-up hub (H) of the cassette tape (T) and a leaf spring (16) inclined upward from the bottom wall
A cassette tape protection case in which a flexible piece (5) is attached to the rear side walls (3b, 7b) of the upper and lower lids.