JPH0739113Y2 - Endless cassette tape - Google Patents

Description

TECHNICAL FIELD The present invention relates to an endless cassette tape, particularly to an endless cassette tape suitable for conversation learning of foreign languages.

2. Description of the Related Art FIG. 25 is a plan view showing an example of an endless cassette tape which has been widely used in the past, that is, a plan view of a lower half portion in a state where an upper half of a cassette is removed, and 1 is a bottom wall of the lower half. , 2 the lower half of the peripheral wall, 3 ₁ to 3 ₅ are bosses for coupling with the upper half, the insertion holes of 4 and 5 the rotary drive shaft 35 is retracted and the delivery reel of the endless magnetic tape, a double structure It is configured to rotate the disc and hub separately. 36 is a thin plate for preventing the tape wound on the reel 35 from collapsing, 37 is a hole for pulling out the tape, 38 ₁ and 38 ₂ are projections for supporting the thin plate 36, 39 is an endless magnetic tape, and is a time It is formed to have a length capable of recording and reproducing for 3 minutes or 6 minutes. 40 and 41 are tape guide pins, 10 and 11 are guide rollers, 6 is an erasing head insertion window, 7 is a recording / reproducing head insertion window, 8 is a pinch roller insertion window, and 9 is a capstan insertion hole. .

When this endless cassette tape is mounted on a tape recorder to rotate the reel 35 and the endless magnetic tape 39 is run by a pinch roller and a capstan, the endless magnetic tape 39 is wound on the reel 35 via the guide roller 11.

The tape wound on reel 35 (shown in broken lines)
The tape surface is pulled out from the innermost side of the wound layer through the hole 37 formed in the thin plate 36, and the tape surface is 90 by the guide pins 40 and 41.
It is twisted and fed through a guide roller 10 to a peripheral wall provided with an erasing head insertion window 6, a recording / reproducing head insertion window 7, a pinch roller insertion window 8 and the like.

Problems to be solved by the invention In general junior high school, for example, when learning elementary English, learn the English grammatical structure and pronunciation of short sentences using an English reading book,
As the students progress to higher grades, they will be able to study long sentences, but in this case as well, emphasis will be placed on English grammar and interpretation, and English conversation will be neglected.
It seems to be one of the factors that reduce the willingness to learn.

As a result, very few have achieved sufficient language skills after completing 10 years of studying English through middle schools, high schools and universities.

First of all, the inventor of the present invention has a basic knowledge of English learning that he / she learns enough English. In particular, when he / she learns by himself / herself, a tape recorder is used to replay and listen to the same sentence repeatedly to improve the ability of hearing and to obtain accurate hearing. It is the simplest and most effective way to make it possible to recite a sentence reproduced with a pronunciation and to naturally understand its meaning.

In other words, it is believed that the basics of learning a foreign language are the same steps that infants naturally learn in their native language.

Generally speaking, the time length of each sentence when speaking in each language is extremely short, about 3 seconds, so a relatively long endless magnetic tape capable of recording and reproducing for 3 minutes or 6 minutes as in the past is used. When using an internal cassette, it is possible to repeatedly play and listen to the same content sentence by repeatedly playing the same content sentence on the endless magnetic tape at appropriate time intervals. It takes a relatively long time.

It is possible to shorten the length of the tape in order to shorten the recording time, but in the conventional endless cassette tape as described above, it is extremely difficult to set the length of the tape to 15 seconds or less as the recording / playback time. Have difficulty.

That is, in the above-mentioned conventional endless cassette tape, the endless magnetic tape is formed by loosening the layer of the tape 39 which is wound on the reel 35 for drawing in and delivering the tape 39.
Play in 39, that is, attach the endless cassette tape to the tape recorder, turn on the power, insert the recording / playback head, etc. into the cassette from the insertion window and bring it into close contact with the tape. A play is provided to prevent the friction resistance between the tape and the tape from becoming large and hindering the running of the tape. However, if the length of the tape 39 is shortened to a certain degree or less, Due to the decrease in the number of windings of the tape, sufficient play cannot be provided, and it becomes extremely difficult to smoothly run the tape 39.

Further, in the above conventional endless cassette tape,
If the tape 39 is run in the opposite direction, the tape layer around the reel 35 will be tightly tightened and smooth running will not be performed, and if the tape 39 is forcibly run, the tape 39 will be damaged, and in the worst case, cutting etc. Therefore, it is impossible to reverse the running direction of the tape 39. Therefore, the recording / playback track is limited to one track, and it can be installed in an auto-reverse type tape recorder. Absent.

In addition, there are two types of auto stoppers built into the tape recorder. One is that the movable projection retracts and operates according to the increase in tension of the running tape, and the other is the tape delivery reel. When the above conventional endless cassette tape is mounted on a tape recorder that incorporates an automatic stopper of the latter type, it operates when the rotation is stopped.
On the side, since the state is equal to the stopped state from the beginning, the automatic stopper also operates from the beginning, and there are various drawbacks such that recording and reproduction are completely impossible.

Means for Solving the Problems The present invention is directed to a tape drawing reel having an outer peripheral surface formed on a friction surface, a tape feeding reel having an outer peripheral surface formed on a friction surface, an insertion window for an erasing head or a pinch roller, and a recording device. One of the peripheral wall portion of the cassette provided with the insertion window of the reproducing head, the insertion window of the pinch roller or the erasing head and the insertion hole of the capstan, a part of the outer peripheral surface of the tape drawing reel and the outer peripheral surface of the tape sending reel. An endless magnetic tape having a section as a running path, and one end of the tape retainer presses the endless magnetic tape against the outer peripheral surface of the tape pull-in reel, and the other end of the tape retainer. Section presses the endless magnetic tape against the outer peripheral surface of the tape delivery reel, and the tape between the both ends of the tape retainer is pressed. This is characterized in that the running path of the road is formed as a free running path.

Action In the endless cassette tape of the present invention, a part of the endless magnetic tape running path, that is, the tape running path between the ends of the tape retainer and the contact points of the tape pull-in reel and the outer peripheral surface of the tape sending reel is free. Since it is formed on the running path and the play length of the endless magnetic tape can be selected to almost the required length regardless of the length of the endless magnetic tape, the endless magnetic tape can be run in reverse, so it was mounted on any type of tape recorder. In this case, the tape will run smoothly.

Embodiment FIG. 1 is a view showing an embodiment of the present invention, that is, a plan view in which an upper half constituting a cassette is removed, 1 is a bottom wall of the lower half, 2 is a peripheral wall of the lower half, 3 ₁
3 to ₅ are bosses for coupling with the upper half, 4 and 5 are insertion holes for the rotation drive shaft of the reel, 6 is an insertion window for an erasing head or a pinch roller, 7 is an insertion window for a recording / playback head, 8 is a pinch roller or Erase head insertion window, 9 ₁ and 9 ₂ are capstan insertion holes, 10 and 11 are tape guide rollers, 12 and
13 is a tape guide pin, 14 and 15 are bar spacers, 16
Are projections for preventing erasure of recorded information, and these have the same structure as a conventional cassette.

17 and 19 are tape reels, 18 and 20 are layers provided to form the outer peripheral surfaces of the tape reels 17 and 19 as friction surfaces,
For example, it is made of a material with a relatively large friction coefficient such as rubber,
The widths of the friction layers 18 and 20 are formed to be substantially equal to the respective thicknesses of the tape reels 17 and 19 or appropriately narrowed so as not to hinder the rotation of the tape reels 17 and 19. Reference numeral 21 is an endless magnetic tape, and 22 is a tape retainer which is the gist of the present invention, and is constructed as shown in FIGS. 2 to 11, for example.

FIG. 2 is an enlarged plan view showing an example of the structure of the Ape presser, and FIG. 3 is an enlarged side view with a partial cross section. In both figures, 22 ₁ and 22 ₂ are pressing rollers and 22 ₃ are supporting members. It is composed of a linear body having an appropriate elasticity, and the intermediate portion is wound into a coil to form a V shape, and the bent portions at both ends are pressed by the pressing roller 22.
Insert the ₁ and 22 ₂ of the through-hole provided in the centers, and rotatably supports the pressing roller 22 ₁ and 22 _2, the coiled winding portion of the support 22 _3, rod-shaped spacers 14 or 15 ( 1) and the tape retainer 22 is attached to the bottom wall 1 of the lower half, the outer peripheral surfaces of the pressure rollers 22 ₁ and 22 ₂ are the tape reels 17 and 19 as shown in FIG. Friction layer provided on each outer peripheral surface
The opening angle of the support 22 ₃ is appropriately selected so that 18 and 20 can be brought into close contact with each other with a suitable pressure.

Figure 4 is an enlarged plan view showing an example of another structure of the tape presser 22, FIG. 5 is an enlarged side view, in both figures, 22 ₄ and 2
2 ₅ pressing roller, 22 ₆ in the support, made of the same material as the support 22 ₃ shown in FIGS. 2 and 3, formed in a V-shape to provide a coiled winding part at its intermediate portion However, in this case, both ends of the support member 22 ₆ are bent in a substantially semicircular shape, and this bending portion and the tape reels 17 and 19 are bent.
The pressing rollers 22 ₄ and 22 ₅ are sandwiched between the friction layers 18 and 20 provided on the outer peripheral surfaces of FIG. 1 so that the pressing rollers 22 ₄ and 22 ₅ are rotatably supported. .

FIG. 6 is also an enlarged plan view showing an example of the structure of the tape holding tool 22, and FIG. 7 is an enlarged side view with a partial cross section. In both figures, 22 ₁ and 22 ₂ are pressing rollers, and FIG. 3 and the pressing rollers 22 ₁ and 22 ₂ shown in FIG.
22 ₇ is a support, which is made of the same material as that of the support 22 ₃ shown in FIGS. 2 and 3, but the support 22 ₇ is bent symmetrically about the coil winding part. The entire shape is W-shaped, and the bent parts at both ends are pressed by rollers 22 ₁ and 2
2 Insert into the through hole provided at the center of each 2 ₂ and press roller 22 ₁
Also in and 22 ₂ The table holding member that is configured to allowed to rotatably support the may be configured to allowed to support the pressure roller by the same support means to that shown in FIGS. 4 and 5.

FIG. 8 is an enlarged plan view showing another structure of the tape retainer 22, FIG. 9 is an enlarged side view, and 22 ₈ is a wire made of the same material as the support 22 ₃ shown in FIGS. 2 and 3. Alternatively, a coil-shaped winding part is provided in the middle part, and pads 22 ₉ and 22 ₁₀ made of appropriate shells are attached to the outer sides of both ends, and the outer surfaces of the pads 22 ₉ and 22 ₁₀ are tape reels. The friction layers 18 and 20 on the outer peripheral surfaces of 17 and 19 (FIG. 1) are formed so as to be pressed with an appropriate pressure.

FIG. 10 is also an enlarged plan view showing another structure of the tape holding tool 22, and FIG. 11 is an enlarged side view. In this tape holding tool, the intermediate portion of the linear body 22 ₁₁ having an appropriate elasticity is coiled. Wrap it in a circular shape and select the length of the bent part at both ends so that the tip and base of the bent part do not come into contact with the inner surfaces of the upper and lower halves when this is installed in the cassette. The friction layers 18 and 29 provided on the outer peripheral surfaces of the tape reels 17 and 19 are formed so as to be closely attached via a tape.

The supports 22 ₃ , 22 ₆ , 22 ₇ and 22 ₈ shown in FIGS.
In the tape retainer 22 ₁₁ shown in FIG. 10 and FIG. _{11 side} by side, the intermediate portion of the wire or strip is wound into a coil shape to form the insertion hole of the rod-shaped spacer 14 or 15 (FIG. 1). Although the coiled winding portion is replaced with a ring, the bases of the two supporting wires or strips may be integrally fixed to the ring to form a V or W shape. The supports 22 ₆ and 22 ₈ shown in FIGS. 5, 8 and 9 and FIGS.
Instead of forming the tape retainer 2211 shown in FIG. ₁₁ in a V-shape, it may be formed in a W-shape as in FIG.

When the endless cassette tape of the present invention shown in FIG. 1 is mounted on a tape recorder so as to record or reproduce on, for example, side A, the erasing head of the insertion window 6 and the pinch roller are inserted into the insertion window 8. 9 ₁ capstan insertion holes 5
Each rotary drive shaft is inserted into the
As a reel for pulling in the tape, the reel 17 operates as a reel for sending out the tape 21, and when the cassette is mounted on the tape recorder so that the front and back of the tape are reversed and recording and reproduction are performed on the B side, the pinch is inserted into the insertion window 6. roller, erasing head insertion window 8, capstan insertion holes 9 ₂ is inserted into the rotary drive shaft in the insertion hole 4, respectively, as reel pull the tape reel 17 the tape 21, the tape reel 19 the tape 21 The recording / reproducing operation is performed on the side A of the cassette.

When the power is turned on by pressing the record or play button of the tape recorder, the endless magnetic tape 21 is sent by the capstan and the pinch roller, and the tape reel 19 is rotated counterclockwise by the rotation drive shaft, and the tape reel 19 The tape 21 sent from is a tape reel
After leaving the free running path through the friction layer 20 of 19 and the right side pressing roller of the tape presser 22 (for example, 22 _{2 in} FIG. ₂ ),
The friction layer 18 passes between the friction layer 18 of the tape reel 17 and the left side pressing roller of the tape retainer 22 (for example, 22 _{1 in} FIG. 2).
The recording / playback head inserted into the insertion window 7 by being guided by the guide pin 12 and the guide roller 10 and traveling rightward in the drawing, the guide roller 11 and the guide pin 13
The tape reel 19 repeatedly circulates in the traveling path in contact with the friction layer 20 of the tape reel 19.

Now, the free running path formed between the contact point between the friction layer 20 of the tape reel 19 and the right side pressing roller of the tape retainer 22 and the contact point between the friction layer 18 of the tape reel 17 and the left side pressing roller of the tape retainer 22. It is configured such that the tape 21 travels from the friction layer 20 of the tape reel 19 directly to the friction layer 18 of the tape reel 17, and the tape is stretched so that the total length of the tape 21 and the total length of the traveling path match. Assuming a case, when the cassette configured as described above is mounted on the tape recorder and the power is turned on and the recording / playback head or the like is brought into pressure contact with the tape surface, the tape is tensioned and the guide pin, guide roller, tape reel, etc. It adheres firmly to and has a large friction resistance,
Further, since the automatic stopper is also activated, the tape cannot be fed at all.

You can avoid such a situation by giving a suitable play in advance when spreading the tape, but the required play length differs depending on the model of the tape recorder, and play longer than the required play If it is provided, the contact with the recording / playback head will be insufficient and the quality of recording / playback will be degraded.Therefore, it is not possible to set the length of play so that it can be used with all types of tape recorders. It's extremely difficult.

In the endless cassette tape of the present invention, since the free running path is provided between the contact points between the outer peripheral surfaces of the tape reels 17 and 19 and the pressing roller of the tape retainer 22, the tape reel 17 of the pressing roller in the tape retainer 22 is provided. By applying appropriate pressure to the outer peripheral surface of No. 19 and 19, the tape running can be smoothed even when it is attached to any type of tape recorder, and the contact with the recording / playback head is made close to perform recording / playback. Can maintain good quality.

The operation of mounting the endless cassette tape on the tape recorder in the tape recorder and pushing the record or playback button to run the tape will be explained in an expanded time. When the tape surface moves forward and presses against the tape surface, if the tape play is insufficient, the tape becomes tensioned, and the tape reel 17 rotates in the forward direction and the tape reel 19 rotates in the opposite direction in response to this tension. do it,
The tape on the free running path is sent to the insertion windows 6 to 8.

The outer peripheral surfaces of the tape reels 17 and 19 are formed on the friction layers 18 and 20, and the pressing roller of the tape retainer 22 presses the friction layers 18 and 20 of the tape reels 17 and 19 through the tape with an appropriate pressure. Therefore, there is no stumbling between the outer peripheral surfaces of the tape reels 17 and 19 and the tape.
As the tape reels 17 and 19 rotate, the tape of the required length is sent out from the free running path to the insertion windows 6 and 8 to eliminate the tension of the tape.

As the tape tension disappears, tape reels 17 and 19
Is stopped, and the feeding of the tape to the insertion windows 6 and 8 is also stopped.

When the rotation drive shaft of the capstan and tape reel starts rotating, the recording / playback head and the tape are in close contact,
Since there is no unnecessary play in the tape on the running paths other than the free running path, and no stumbling occurs between the tape and the outer peripheral surfaces of the tape reels 17 and 19, as described above, the cupstan and the pinch. When the feeding of the tape is started by the roller, the length of the tape fed to the free running path via the tape reel 19 and the length of the tape pulled out from the free running path via the tape reel 17 are maintained in the same state. Therefore, on the side of the insertion windows 6 to 8, the tape runs smoothly while keeping the contact between the recording / reproducing head and the tape close. When the endless cassette tape of the present invention is mounted on a tape recorder and there is play more than a required length on the tape in a running path other than the free running path, the tape is driven according to the start of the rotation drive shaft of the capstan and the tape reel. Is sent to the free running path via the tape reel 19, the tape reel 17 does not rotate, and the tape is not sent out from the free running path.

When the play on the tape is absorbed by the free running path and the contact between the recording / playback head and the tape becomes dense, the tape reel 17 also rotates in response to the tape feeding of the capstan and the tape reel 19, and the free running path. The length of the tape fed in and the length of the tape pulled out from the free running path are kept equal.

The outer peripheral surfaces of the tape reels 17 and 19 and the tape retainer 22
Since the length of the tape in the free running path formed between the contact points with the pressing roller is relatively short, there is no risk of entanglement of the tape in the free running path. For example, as shown in FIG. if between the coiled winding part of the sushi 2 and coupling boss 3 ₃ by forming such tape passes, tape entanglement can reliably prevent the in free running path.

FIG. 12 is a view showing the main part of another embodiment of the present invention. In this embodiment, the coil-shaped winding portion of the tape retainer 22 is supported by the rod-shaped spacer 15, and the rod-shaped spacer 14 is guided by a guide roller. 23 is rotatably attached and this guide roller
Although it is configured to surely prevent the entanglement of the tape by forming a free running path around 23, the present invention can be implemented even if the guide roller 23 is omitted.

Other reference numerals, configurations and operations are the same as those in the embodiment shown in FIG.

FIG. 13 is also a view showing a main part of another embodiment of the present invention. In this embodiment, guide rollers 25 and 26 supported by a common support 24 are added to the tape running path, The endless magnetic tape 21 is configured so that the total length thereof can be made longer than that of each of the above-described embodiments, and FIG. 14 shows a configuration of a common support and a guide roller portion supported by the common support. A plan view, FIG. 15 is a front view, FIG. 16 is a rear view, and FIG. 17 is a side view. In each drawing, 24 is a common support body, both ends of which are bent so that the guide rollers 25 and 26 are rotatable. In addition to supporting it, the protruding piece 27 is provided on the middle part of the common support 24.
And a hole 28 is formed at the center of the protrusion 27.

By inserting the rod-shaped spacer 14 into the hole 28 formed in the projecting piece 27, the common support 24 and the guide rollers 25 and 26 can be attached to the cassette as shown in FIG.

In this embodiment, the tape 21 is in contact with the tape reel 17 from the outer peripheral surface of the tape reel 19 through a free running path formed around the tape pressing tool 22, and is guided by the guide roller 25, the guide pin 12, and the guide roller 10. Guided through the erasing head, the recording / playback head, the insertion window of the capstan, etc.,
Since it is guided by the guide roller 11, the guide pin 13, and the guide roller 26 and comes into contact with the tape reel 19 again,
It is possible to increase the total length of the endless magnetic tape 21 as compared with the above embodiments.

Other reference numerals, configurations and operations are the same as those in the above-mentioned embodiments.

FIG. 18 is a view showing another embodiment of the present invention. In this embodiment, like the embodiment shown in FIG. 12, the tape retainer 22 is provided (the tape retainer 22 is turned upside down). While being supported by the rod-shaped spacer 15, the guide rollers 25 and 26 are mounted by the common support 24 supported by the rod-shaped spacer 14 as in the embodiment shown in FIG. 13, and the endless magnetic tape 21 and the tape reel 19 are attached. , The guide rollers 26 and 25, the tape reel 17, the guide pin 12, the guide rollers 10 and 11, and the guide pin 13 are run to increase the length of the endless magnetic tape 21 and the guide roller 25. And 26 are configured to prevent the entanglement of the tape in the free running path formed below the pressing roller of the tape pressing tool 22.

Other reference numerals, configurations and operations are the same as those in FIG.

Incidentally, in FIG. 18, the tape 21 and the guide rollers 25 and 26 are shown.
The reason why this portion is a free-running road is shown with a space provided between it and the peripheral edge, and the same applies to each of the following drawings.

The embodiment shown in FIG.
Tape presser 22 and common support shown in FIGS.
The endless magnetic tape 21 includes a tape reel 19, guide rollers 26, 29 and 25, and a tape that supports guide rollers 25 and 26 via 24 and a guide roller 29 rotatably supported by a rod-shaped spacer 15. Reel 17,
Guide pin 12, guide rollers 10 and 11 and guide pin
It circulates on a runway consisting of 13.

In the present embodiment, the total length of the traveling path can be made longer than that in each of the above-described embodiments.

Other reference numerals, configurations and operations in FIG. 19 are the same as those in the above-mentioned embodiments.

FIG. 20 is a view showing another embodiment of the present invention, in which 24 ₁ is a common support, 25 ₁ and 26 ₁ are guide rollers, 27 ₁ is a protruding piece, 28 ₁ is a hole, and these are shown in FIG. The configuration is similar to that shown in FIG. 30 and 31 are guide rollers, other reference numerals,
The structure and operation are similar to those of the embodiment shown in FIG.

In this embodiment, the guide roller 26 and the tape retainer
Pressing roller at 22, the guide rollers 31,25 _1, 26 _1, 30
A free running path is formed around each of the points 25 and 25, and the total length of the endless magnetic tape 21 can be made longer than in the previous embodiment.

In the embodiment shown in FIG. 21, a V-shaped support having a large opening angle is used as the tape retainer 22, and this is supported by a rod-shaped spacer 15, and the pressing roller of the tape retainer 22 is connected to the tape reel 17 and the tape reel 17. It is formed by contacting the upper peripheral edge of 19 (towards the drawing) and forming a free running path below the portion between the tape reels 17 and 19 from this contact point. This is similar to FIG. 12 and FIG.

The embodiment shown in FIG. 22 corresponds to the tape retainer in FIG.
22 and the rod-shaped spacer 14 support the tape holder
By making the pressing roller 22 contact the lower peripheral edges of the tape reels 17 and 19, the total length of the tape can be made longer than that in the embodiment shown in FIG. 21. The operation is the same as in FIG.

The embodiment shown in FIG. 23 corresponds to the tape retainer shown in FIG.
22 is replaced with the tape retainer 22 shown in FIG. 21, and this is supported by the rod-shaped spacer 15. Other configurations, reference numerals and operations are the same as in FIG.

The embodiment shown in FIG. 24 is a tape holder which can be placed in FIG.
22 is replaced by a tape retainer 22 that can be placed in FIG. 21, and guide rollers 32, 33, and 34 are added to increase the total length of the endless magnetic tape 21.
Reference numerals and operations are the same as those in FIG.

The embodiment shown in FIGS. 1, 12, and 12 is suitable for setting the recording / reproducing time to about 6 seconds.
In the embodiments shown in FIGS. 18, 18, 22 and 23, the recording / playback time is set to about 7 to 8 seconds, and in the embodiments shown in FIGS. 19 and 24, the recording / playback time is set. Almost every 9 to 10 seconds,
In the embodiment shown in FIG. 20, the recording / playback time is approximately 11 seconds to 13 seconds.
It is suitable when setting to each second.

Effect of the Invention In the endless cassette tape of the present invention, both ends of the tape retainer are pressed and closely contacted with the outer peripheral surfaces of the tape pull-in reel and the tape delivery reel, and the free running path of the tape is formed between the both press-contacted points. However, the play of the required length of tape is sent out from this free running path and unnecessary play is stored in this free running path, and the endless cassette tape of the present invention can record and play for approximately 6 seconds to 13 seconds. This is an extremely short length, and this length includes the length of tape play required when the present endless cassette tape is mounted on various tape recorders, but the tape required depending on the type of tape recorder. Since the play lengths of the two do not vary greatly, the longest play length is required in determining the length of the present endless cassette tape. -Even if the tape is set so that it can be attached to the precoder, the length of the tape in the free running path is relatively short, and therefore, in the free running path, the tape is bent irregularly in a zigzag shape and does not become entangled. Even when mounted on a tape recorder of a model, the endless magnetic tape can smoothly run while recording and reproducing while keeping close contact with the recording and reproducing head.

In addition, the proposed endless cassette tape is composed of
Since the tape drawing reel and the tape feeding reel are arranged symmetrically with respect to a line that is perpendicular to the line connecting the centers of the reels, by turning over the endless cassette tape of the present invention and mounting it on the tape recorder, it becomes two tracks. It is possible to record and play back.

Further, the structure of the tape holding tool for forming the free running path of the tape and controlling the length of the play of the tape is simple, and therefore the structure of the entire cassette can be easily manufactured.

As described above, since the endless cassette tape of the present invention can record and reproduce for approximately 6 seconds to 13 seconds, as compared with the conventional case where a relatively long tape is used to repeatedly record the same information, Since the time and labor required for the recording work can be shortened and reduced, and the same information can be repeatedly reproduced at the time of reproduction, for example, when the recording and reproduction time is about 6 seconds as in the embodiment shown in FIG. , Suitable for recording and reproducing one sentence in English conversation, for example
As in the embodiment shown in the figure, the recording / playback time is about 11 seconds or more.
In the case of 13 seconds, it is suitable for recording and reproducing, for example, dialogue of each sentence in English conversation or English conversation and its Japanese translation or short mathematical formula.

[Brief description of drawings]

FIG. 1 is a diagram showing an embodiment of the present invention, FIG. 2, and FIG.
FIG. 6, FIG. 8, FIG. 8 and FIG. 10 are enlarged plan views showing an example of the structure of the main element, and FIG. 3 and FIG. Fifth enlarged side view having
FIG. 9, FIG. 9 and FIG. 11 are enlarged side views showing an example of the constitution of the main part element, FIG. 12 and FIG. 13 are drawings showing another embodiment of the present invention, and FIG. FIG. 15 is a plan view showing an essential element of FIG.
Figure is front view, Figure 16 is rear view, Figure 17 is side view, 18
Figure, Figure 19, Figure 20, Figure 21, Figure 21, Figure 22, Figure 23 and Figure 24
Figure is a diagram showing another embodiment of the present invention, FIG. 25 is a diagram showing an example of a conventional endless cassette tape, 1: bottom half of the bottom wall, 2: lower half of the peripheral wall, 3 ₁ to 3 ₅ : Boss for coupling with the upper half, 4 and 5: Insertion hole for reel drive shaft, 6: Insertion window for erasing head or pinch roller, 7: Insertion window for recording / playback head, 8: Pinch roller or erasing head Insertion window, 9 ₁ and 9 ₂ : Capstan insertion hole, 10 and 11: Guide roller, 12 and 13: Guide pin, 14 and 15: Bar spacer, 16: Erase prevention protrusion, 17 and 19: Tape reel , 18
And 20: friction layer, 21: endless magnetic tape, 22 and 2
2 ₁₁ : Tape retainer, 22 ₁ , 22 ₂ , 22 ₄ and 22 ₅ : Pressing roller, 22 ₃ , 22 ₆ , 22 ₇ and 22 ₈ : Support, 22 ₉ and 22 ₁₀ : Pad, 23: Guide roller, 24 and 24 ₁ : common support, 2
5,25 ₁ , 26 and 26 ₁ : Guide roller, 27 and 27 ₁ : Projection piece, 28
And 28 ₁ : pores, 29, 30, 31, 32, 33 and 34: guide rollers,
35: Reel for pulling in and sending out tape, 36: thin plate, 37:
Pores, 38 ₁ and 38 _2: support protrusion, 39: endless magnetic tape, 40 and 41: a guide pin.

Claims (6)

[Scope of utility model registration request] 1. A tape drawing reel having an outer peripheral surface formed as a friction surface, a tape feeding reel having an outer peripheral surface formed as a friction surface, an insertion window for an erasing head or a pinch roller, an insertion window for a recording / playback head, and a pinch. A running path is formed between the peripheral wall portion of the cassette provided with the insertion window of the roller or the erasing head and the insertion hole of the capstan, a part of the outer peripheral surface of the tape drawing reel, and a part of the outer peripheral surface of the tape feeding reel. An endless magnetic tape is provided, and the endless magnetic tape is pressed against the outer peripheral surface of the tape pull-in reel by one end of the tape retainer, and the tape sending reel by the other end of the tape retainer. The endless magnetic tape is pressed against the outer peripheral surface of the tape, and the endless magnetic tape is zigzag between the both ends of the tape retainer. Housed without bends Jo, entangled endless cassette tape, characterized in that the formation of the free running path capable of running without producing. 2. A tape retainer is a support body made of an elastic body formed in a V shape, and rotatably supported at each end of the support body, and outer peripheral surfaces of a tape pull-in reel and a tape delivery reel. The endless cassette tape according to claim 1, further comprising a roller that presses each of the tapes. 3. A tape retainer comprising a support body formed of an elastic body formed in a W shape, and rotatably supported at each end of the support body, and outer peripheral surfaces of a tape drawing reel and a tape feeding reel. The endless cassette tape according to claim 1, further comprising a roller that presses each of the tapes. 4. A tape holder is provided with a support body made of an elastic body formed in a V or W shape, and attached to each end of the support body so that each outer peripheral surface of the tape pull-in reel and the tape delivery reel is The endless cassette tape according to claim 1, wherein the endless cassette tape is configured with a pad made of a bullet fold that is pressed separately. 5. A tape retainer is elastic and bends both ends of a V- or W-shaped linear body, and the bent portions form the outer peripheral surfaces of the tape drawing reel and the tape feeding reel. The endless cassette tape according to claim 1, wherein the endless cassette tape is configured to be pressed separately. 6. A part of the running path of the endless magnetic tape,
The endless cassette tape according to claim 1, further comprising a guide roller for increasing the total length of the running path.