JPH087574Y2 - Tape cassette and tape reel holder - Google Patents

Description

[Detailed description of the device]

[0001]

[Industrial application] The present invention is convenient for attaching a tape cassette of video tape, a tape cassette of a video tape, and a tape wound on a reel, which is lightweight and easy to attach and detach the tape, and mounts the received tape to the cassette. Tape reel holder.

[0002]

2. Description of the Related Art Conventionally used tape cassettes for video and the like have a tape wound around a reel rotatably housed in a case in which a pair of upper and lower halves are combined and hermetically sealed. It is protected by a guard panel that can be opened and closed only when it is loaded into a playback device.

[0003]

The above-mentioned conventional video tape cassette is suitable for the purpose of storing and using it for a long period of time.
It has a short period of use, is relatively infrequently used, and does not require long-term storage, and requires continuous or additional mailing of tapes, such as educational tapes for distance learning. In this case, since the weight is heavy, the mailing cost is high, and the receiving side is also heavy and bulky, which makes it difficult to store and dispose of the tape cassette. Moreover, it is not possible to mail only the tape because the tape cannot be freely replaced.

The present invention has been proposed in view of the above problems, in order to reduce the overall cost by feeding the cassette containing the tape only the first time and then feeding only the tape wound on the reel several times. , Lightweight (20 minutes for standard recording, 3
For double-recording for 1 hour of tape), when mailing, it is possible to have low charges within the range of type 1 non-standard size mail "up to 100g", and only the tape can be removed and replaced, and the cassette body can be used repeatedly. It is an object of the present invention to provide a simple tape cassette, and a tape reel holder that is convenient for mailing a tape wound on a reel used for the tape cassette and for loading / replacement of the tape in / from the cassette.

[0005]

In order to achieve the above object, the tape cassette according to the present invention has the following structure. That is, a tape cassette in which a tape wound on a reel is rotatably accommodated in a case formed by combining a pair of upper and lower halves, and the upper half has two circular opening portions that are at least slightly larger than the diameter of the flange of the reel. A reel retainer that is openably and closably connected to a peripheral portion or an intermediate portion of the two circular openings, and the lower half has at least two circular openings that are slightly smaller than the diameter of the lower flange of the reel, In the tape cassette, the tape is exposed on the tape running surface, and the other three side surfaces except the tape running surface have a watermark structure.

Between the two circular openings of the upper half and the guide rolls at both ends of the tape running surface, there are gaps for taking in and out the tape.

The watermark structure on the three side surfaces excluding the tape running surface means a structure in which the three side surfaces have openings other than the supporting portions necessary for maintaining the shape of the tape cassette.

The present invention also provides a tape reel holder that is convenient for mailing tapes and loading tapes into cassettes. The tape reel holder of the present invention has the following structure.

In other words, the tape reel holder is a tape reel holder that holds the mutual positional relationship of a pair of reels around which tapes are wound on the central portions of both reels in a releasably and commonly fixed manner. The tape reel holder includes a handle for holding the tape, and at least a pair of guide pins for stretching and holding the tape along a predetermined traveling path between the reels.

[0010]

With the above construction, the amount of the raw material synthetic resin used for forming the upper and lower halves of the tape cassette is significantly reduced, the weight of the product can be reduced, and the reel retainer is removed to release the tape from the opening of the upper half. Can be easily taken out while being wound on both reels. Further, by using the above-mentioned tape reel holder, a pair of tape reels, which have been mailed while keeping their mutual positional relationship constant, are loaded into the side cassette and the holder is reeled by holding the handle. If the holder is attached to both reels in the cassette, the tape reel can be easily taken out from the cassette.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A tape cassette and a tape reel holder according to the present invention will be specifically described below with reference to the embodiments shown in the drawings. 1 is a top perspective view showing an embodiment of a tape cassette according to the present invention, FIG. 2 is a bottom perspective view of the same, FIG. 3 is a perspective view of a reel according to the present invention, and FIG. 4 is a sectional view taken along line AA of FIG. 5 is a perspective view showing an embodiment of a tape reel holder according to the present invention, and FIG. 6 is a plan view showing a state in which a tape is loaded into a cassette using the tape reel holder.

1 and 2, 1 is a tape cassette body, 2 is an upper half, 3 is a lower half, and a tape cassette body 1 is formed as a joined body of molded products 2 and 3 made of synthetic resin. There is.

As shown in FIG. 1, the tape 4 is used in an exposed state on the tape running surface 5, and is not provided with a guard panel. Further, the upper half 2 is provided with two circular openings 7 and 8 having a diameter slightly larger than the diameters of the upper flange (made of transparent resin) 17 and the lower flange 23 of the reel 6 and an opening connecting the middle of both the openings. Provided and further opening 7
Gaps 9 and 10 through which the tape passes are provided between and and 8 and the guide rolls 11 and 12 at both ends of the tape running surface 5. The upper flange 17 has a hole 18.

Further, a cross-shaped reel retainer 14 which is openably and closably connected by a hinge 13 is provided in the middle of the circular opening, and the side opposite to the hinge 13 is stopped by a stopper 15 so that the two reels 6 are connected to each other. It is held so that it does not get out of 1. Remove the stopper 15 and hold the reel 1
If the tape 4 is opened upward, the tape 4 can be attached and detached very easily together with the reel 6. The reel retainer 14 is not limited to the cross shape, and may be, for example, both circular openings 7
8 may be openably and closably connected to each of the peripheral edge portions, that is, as long as the reel 6 is rotatably held in the cassette body 1.

The open / close state of the reel retainer 14 is shown in FIG. 4 is a sectional view taken along the line AA of FIG. 1, in which 23 is a lower flange of the reel 6, 31 is a tape winding core portion, and 32 is a tape winding core portion 3.
1 and other symbols are the same as those in FIG.

Next, a bottom perspective view of the lower half 3 of the cassette body 1 is shown in FIG. In FIG. 2, the lower half 3 is provided with two circular openings 21 and 22 having a diameter slightly smaller than the diameter of the lower flange 23 of the reel 6. By providing the opening portion in this way, the reel 6 does not come out from the lower surface side. Further, side surface openings 16 extending over the upper half 2 and the lower half 3 are provided on three side surfaces of the cassette body 1 excluding the tape running surface 5. In the drawing, these openings are formed in a quadrangle, but the shape is not limited, and may be circular, oval or the like. Further, the number of sections of the opening may be arbitrary as long as the holding of the cassette is not impaired. In FIG. 2, 25 is a rotary spindle insertion port,
Reference numeral 26 is a groove for mounting the deck.

FIG. 3 shows an example of the tape reel 6.
In the figure, the tape winding core portion 31 has a hole 32.
The number and shape of the punched holes 32 are not limited, but it is preferable to punch out about 1/2 (for example, the area) of the tape core portion 31 in order to reduce the weight. Moreover, it is preferable that the number of divided pieces is about 7 to 9 rather than 2 to 3 so as not to damage the tape. Further, the upper flange (made of transparent resin) 17 and the lower flange 23 of the reel 6 are also provided with a plurality of holes 18 and 24. The drawing shows an example in which the punched hole 18 of the upper flange 17 is divided into four equal parts, but the number and shape thereof may be arbitrary. The same applies to the hole 24 in the lower flange 23.

As described above, by adopting the structure in which the openings and the holes are provided as much as possible, the amount of the synthetic resin used for molding the tape cassette can be extremely reduced and the weight can be reduced. The molding method for the upper half and the lower half is arbitrary.

FIG. 5 is a perspective view of an embodiment of the tape reel holder, and the tape is loaded into the cassette while holding the tape reel in a predetermined positional relationship using the holder. A plan view of the state is shown in FIG. In FIG. 5 and FIG. 6, 51 is the above-mentioned holder, 52 is a joint between the center of the tape reel and the holder, 53, 54, 5
5 is a guide pin for spreading the tape, 56 is a handle, 5
Reference numeral 7 denotes a connecting portion between the handle 56 and the holder 51, and the other portions are the same as those in FIGS. 1 to 4.

The holder 51 detachably joins and holds the central portions of the pair of tape reels 6 to two joining portions 52 on the back surface. It is convenient to attach and detach the tape reel 6 if the joining portion 52 is formed of, for example, an adhesive. Double-sided adhesive tape is a suitable material. The material and shape of the holder 51 may be arbitrary. For example, the examples shown in FIGS. 5 and 6 are U-shaped with an open tip, and it is desirable that a thin plastic plate or the like is used as a material and the material is as light as possible if it has necessary strength. The holder 51 has a handle 56 for attaching / detaching the tape reel 6 and inserting / removing the tape reel 6 in / from the cassette body 1. It is convenient to connect the handle 56 to the holder 51 so that the handle 56 can be laid down when it is not needed such as by mail. Any method of connecting the handles may be used, and the integrally formed hinge structure 57 is shown as an example in the drawing.

The guide pins 53, 54 and 55 are used to extend the tape 4 along a predetermined traveling path between the reels 6 and 6, and these pins are at least 53.
Two pins 54 and 54 are required, and a pin 55 may be added thereto. The pins 53, 54, 55 are arranged, for example, as shown in FIG. 6, so that the tape reel 6 can be inserted into the cassette 1 while being held by the holder 51, and the interval between the pins 53 and 54 is the cassette. It is arranged a little larger than the distance between the guide rolls 11 and 12 on the first side. In the state of FIG.
Peel off the joint 52 between the tape reel 6 and the holder 51,
Only the holder 51 is lifted and the guide pins 53, 54, 55
After the tape is removed from the tape 4, the reel holder 14 is closed and the reel 6 is held down as shown by the solid line in FIG. 1, so that the tape cassette 1 can be set in the player reproducing device.

[0022]

As described above, the tape cassette according to the present invention has the following effects due to the above-mentioned configuration. (1) By opening the reel retainer on the upper surface, it is possible to attach and detach the tape together with the reel very easily. (2) Therefore, only the cassette case can be repeatedly used. (3) Constituent Each member has a large number of openings, holes, etc. to greatly reduce the amount of resin used, so it is extremely lightweight, for example, a standard recording time of 20 minutes and a triple recording time of 1 hour. In case of mailing, the first class non-standard size mail can be mailed at a low charge of "100g or less". (4) Further, by using the tape reel holder, only the tape can be mailed in a state of being wound on a pair of reels, and the tape can be easily loaded / replaced in the cassette in the holding state.

[Brief description of drawings]

FIG. 1 is a top perspective view showing an embodiment of a tape cassette according to the present invention.

FIG. 2 is a bottom perspective view showing an embodiment of a tape cassette according to the present invention.

FIG. 3 is a perspective view showing an embodiment of a reel of a tape cassette according to the present invention.

FIG. 4 is a sectional view taken along line AA of FIG.

FIG. 5 is a perspective view showing an embodiment of a tape reel holder according to the present invention.

FIG. 6 is a plan view showing a state in which a tape is loaded into a cassette using a tape reel holder.

[Explanation of symbols]

 1 Tape cassette body 2 Upper half 3 Lower half 4 Tape 6 Reel 7, 8 Upper half opening 9, 10 Gap 13 Hinge 14 Reel holder 15 Stopper 16 Side opening 17 Reel upper flange 18 Upper flange punch hole 21, 22 Lower Half Opening 23 Lower Flange of Reel 24 Lower Flange Removal Hole 25 Rotating Spindle Insertion Slot 26 Cassette Mounting Groove 31 Tape Winding Center 32 Tape Winding Center Removal Hole 51 Tape Reel Holder 52 Retainer and Tape Reel Joining portions 53, 54, 55 Tape extension guide pins 56 Handle 57 Connecting portion between handle and holder

Claims (3)

[Scope of utility model registration request] 1. A tape cassette in which a tape wound on a reel is rotatably housed in a case formed by combining a pair of upper and lower halves, wherein the upper half is at least slightly larger than the diameter of the reel flange. A reel retainer having a circular opening portion and openably and closably connected to a peripheral portion or an intermediate portion of the two circular opening portions, wherein the lower half has at least two circular opening portions slightly smaller than a diameter of a lower flange of the reel. A tape cassette, wherein the tape is exposed on the tape running surface, and the other three side surfaces except the tape running surface have a watermark structure. 2. The tape cassette according to claim 1, wherein gaps for loading and unloading the tape are provided between the two circular openings of the upper half and the guide rolls at both ends of the tape running surface. 3. A tape reel holder for holding a mutual positional relationship between a pair of reels around which tapes are wound, fixedly and commonly attached to the central portions of both reels in a detachable manner. A holder for a tape reel, comprising: a handle for holding the tape; and at least a pair of guide pins for stretching and holding the tape along a predetermined traveling path between the reels.