JPH0626996Y2 - Tape guide device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial field of application) The present invention relates to a tape guide device in a tape player in which a tape is wound around a rotary cylinder to run the tape.

(Prior Art) In a tape player in which a tape is wound around a rotating cylinder to be run and a signal is recorded / reproduced in the head mechanism section, the tape pulled out from the cassette and run smoothly and accurately with respect to the head mechanism section. I need to guide you. If this is not realized, the track at the time of recording cannot be tracked at the time of reproduction, which causes noise at the time of reproduction.

Therefore, in order to regulate the running state of the tape, a tape guide device as shown in FIG. 3 has been conventionally used.

That is, at the entrance and exit of the rotary cylinder 1 having the head mechanism portion, left and right guide grooves 4 and 4 are formed which extend in an inverted C-shape toward both sides of the rotary cylinder from a position where it hits the cassette mouse of the tape player. A loading block 3 for winding the tape T drawn from the cassette C around the rotary cylinder 1 is slidably arranged in the guide groove 4. A stopper 5 for accurately positioning the loading block 3 is provided at the end of the guide groove 4 on the rotary cylinder 1 side.

Further, the loading block 3 is constructed as shown in FIG. That is, on the upper surface side of the loading block 3, the roller-shaped or post-shaped guide member 2 for regulating the running state of the tape to the upper regulation state is the base 8.
An inclination post 6 is arranged vertically to the guide member 2 and is adjacent to the guide member 2 and is inclined by an angle corresponding to the inclination angle of the rotary cylinder 1. Further, a protrusion 7 that slides in the guide groove 4 is formed on the lower surface side of the loading block 3, and when the loading block 3 contacts the stopper 5, the lower surface 5 a of the stopper 5 is formed.
Is configured to engage with.

Further, a roller-shaped or post-shaped guide member 9 for restricting the running of the tape is arranged near the cassette. This guide member guides the tape to a lower flange portion formed on the guide member to regulate the running width of the tape.

In the conventional tape guide device having such a structure, the tape is first regulated by the guide member 9 arranged in the vicinity of the cassette, and then arranged on the loading block 3. The rotary cylinder 1 which is upwardly regulated by the guide member 2 and is further inclined at a predetermined angle.
The tape is regulated downward by this so that the positioning of the tape in the width direction can be accurately maintained.

However, in the guide member 2 arranged vertically with respect to the base 8 as described above, due to various conditions such as accuracy in manufacturing the parts and accuracy in mounting the parts, when the tape runs, As shown in FIG. 5 (A), the tape is regulated upward, and as shown in FIG. 5 (B), the tape is regulated downward. In that case, the fifth
As shown in FIG. 7B, when the tape travels with the lower regulation, all the traveling regulation members (the guide members 2, 9 and the rotary cylinder 1) perform the lower regulation of the tape. However, there is a drawback that high-precision recording / playback cannot be performed because the upper regulation will not be enforced.

In addition, when the tape is fast-forwarded or rewound, if the tape is regulated to the upper limit or the lower limit, uneven winding occurs, which causes a problem that the winding speed of the tape becomes slow.

Therefore, in order to solve the above-mentioned problems, the inclination angle of the inclination post 6 arranged on the loading block 3 is further increased, and the tape is wound obliquely around the guide member 2. A method has been proposed in which the tape is always pulled above the guide member 2 to regulate the tape upward. However, in this case, even if the tape is regulated upward, since the inclination angle between the inclined post 6 and the rotary cylinder 1 is different, the tape is twisted between them and the tape abuts on the head mechanism portion. At that time, the tape surface and the head could not be brought into contact with each other with high accuracy, which adversely affected the recording / playback operation.

Therefore, the present applicants have previously proposed a tape guide device as described below in order to solve the above problems. That is, as shown in FIG. 6, the guide member 21 is
In advance, the tape is arranged in the loading block 20 inclining by θ from the vertical direction in the direction in which the tape rises above the base 8 (tape unloading direction).

Further, the inclination angle θ is set to 0.5 to 1.0 °.

In the tape guide device having such a structure, the guide member 2 arranged in the loading block 20 is provided.
1 is always held in a state of being inclined by θ from the vertical direction.

As a result, the tape running on the guide member 21 is always subjected to tension upward of the guide member 21, slides upward along the guide member 21, and is guided by the upper flange. As a result, the tape is reliably positioned in the width direction by the lower regulation by the rotary cylinder 1 and the cassette side guide member 9 and the upper regulation by the guide member 21 of the loading block located between them.
The tape can be moved to an accurate position on the head mechanism of the rotary cylinder. Moreover, the twist of the tape due to the inclination of the guide member 21 is absorbed between the guide member 21 and the inclination post 6, and the angle of the inclination post 6 matches the tape winding angle with respect to the rotary cylinder 1. The tape is not twisted between the inclined post 6 and the rotary cylinder 1, and the tape and the head mechanism portion of the rotary cylinder can be accurately positioned.

(Problems to be Solved by the Invention) However, in the conventional tape guide device as described above, depending on the moving position of the loading block 20 during loading of the tape, as shown in FIG. Sometimes the tape is in line with the tape. At this time, the tape is pulled out while the guide member 21 is being pulled out.
Since it is moving above, the roller portion of the guide member also rotates. However, since this roller portion is disposed so as to be inclined in the tape unloading direction A by θ so that the tape can be regulated upward when the loading is completed, as shown in FIG. A downward force f is applied and the tape is pushed down. Further, as the loading progresses, the tape is regulated upward by the guide member 21, but since it is pressed downward as described above, it takes time to return to the upper regulation state and the tape is wound. There were inconveniences such as unevenness and delay of winding speed.

The present invention solves the above problems of the prior art. The purpose of the present invention is that the guide member on the loading block always regulates the tape on the tape even during loading, and as a result, it contacts the rotating cylinder. An object of the present invention is to provide a tape guide device capable of accurately controlling the position of a tape.

[Structure of the Invention] (Means for Solving the Problems) In the tape guide device of the present invention, the guide members, which are respectively located on the tape inlet / outlet side of the rotary cylinder, and move with the tape loading are arranged in the tape unwinding direction from the vertical direction. The tape is arranged so as to be inclined in the loading direction, and the inclination direction is arranged so as to be swung to the incident side of the tape.

(Operation) In the tape guide device of the present invention, the guide member arranged on the tape inlet / outlet side of the rotary cylinder is tilted by a predetermined angle in the tape unloading direction, and the tilting direction is swung to the tape incident side. By setting the tape, tension is always applied to the tape in the upward direction of the guide member even during loading, and the upper edge of the tape is constantly urged above the guide member so that the tape is regulated on the guide member. Is made possible.

(Embodiment) An embodiment of the present invention will be specifically described below with reference to FIGS. 1 and 2. The same members as those of the conventional type shown in FIGS. 3 to 8 are designated by the same reference numerals and the description thereof will be omitted.

* Structure of Embodiment * In this embodiment, as shown in FIG. 1A, a guide member 31 disposed on the loading block 30.
Is inclined in the tape unloading direction by θ from the vertical direction, and as shown in FIG. 1B, the inclination direction is swung by α from the central direction M of the tape winding angle to the tape incident side. It is arranged so as to be oriented.

Further, the tilt angle θ is set to 0.5 to 1.0 °, and the swing angle α is set to 30 ° ± 10 °.

* Operation of Embodiment * In the tape guide device of this embodiment having such a configuration, the loading block 30 moved in the guide groove formed on the base, and the tape was aligned with the guide member 31. Even in this case, as shown in FIG. 2, the tape obliquely abuts the guide member 31. Therefore, the upward force F is always applied to the tape by the rotation of the guide member 31.
Since the tape is applied with tension, the tape can be prevented from shifting downward because the tape is subjected to upward tension.

Further, when the tape loading progresses and the tape exceeds the linear state with the guide member, the tension in the upward direction further increases, so that stable upward regulation is performed.

As described above, according to the present embodiment, the tape is reliably positioned in the width direction by the lower regulation by the rotating cylinder and the cassette side guide member and the upper regulation by the guide member of the loading block between them. The tape can be moved to the correct position on the head mechanism of the rotary cylinder. Moreover, the twisting of the tape caused by tilting the guide member 31 from the vertical direction and swinging the tilting direction in the tape incident direction is absorbed between the guide member and the tilted post, and the tilted post of the tilted post is absorbed. The angle can be matched with the tape winding angle with respect to the rotating cylinder, the tape is not twisted between the tilt post and the rotating cylinder, and the head mechanism portion of the tape and the rotating cylinder can be accurately positioned. .

* Other Embodiments * The present invention is not limited to the above-described embodiments, and the swing angle of the guide member is appropriately set.

[Advantage of the Invention] As described above, according to the present invention, the guide member disposed on the loading block is tilted by a predetermined angle with respect to the vertical direction, and the tilting direction is a direction in which the tape is incident on the tape. It is possible to provide a tape guide device in which the tape abutting on the rotary cylinder can be regulated in an accurate state at all times by a simple means of arranging so that the tape runs.

[Brief description of drawings]

FIG. 1 shows an embodiment of the tape guide device of the present invention. FIG. 1A is a sectional view, FIG. 1B is an enlarged plan view of an essential part, and FIG. 2 is a tape in the tape guide device of FIG. FIG. 3 is a side view showing a contact state between a guide member and a guide member, FIG. 3 is a plan view showing a conventional tape guide device, FIG. 4 is an enlarged sectional view of an essential part of FIG. 3, and FIG. It is a side view which shows the running state of a tape, (A) is an upper regulation state,
6B is a cross-sectional view showing a conventional tape guide device, FIG. 7 is a plan view showing a state during loading, and FIG. 8 is a tape and a guide member in the conventional tape guide device. It is a side view which shows the contact state of. DESCRIPTION OF SYMBOLS 1 ... Rotating cylinder, 2 ... Guide member, 3 ... Loading block, 4 ... Guide groove, 5 ... Stopper, 6 ... Inclined post, 7 ... Protrusion, 8 ... Base, 9 ... Guide member, 20 ... Loading block, 21 ... guide member, 30 ... loading block, 31 ... guide member.

Claims (1)

[Scope of utility model registration request] 1. A tape player in which a tape is wound around a rotary cylinder and is run, and a head mechanism portion provided on the rotary cylinder records and reproduces signals. A rotating cylinder that regulates the bottom of the tape. b. Cassette side guide member that regulates the bottom of the tape. c. A tape loading guide groove formed from the position of hitting the inside of the cassette mouse of the tape player to the tape inlet / outlet portion of the rotating cylinder. d. A tape loading block movably arranged in the guide groove. e. Inclined posts on the loading block that determine the tape wrap angle relative to the rotating cylinder f. An on-tape regulating guide member that is provided on the loading block on the side of the cassette with respect to the inclined post, is inclined in the tape unloading direction from the vertical direction, and is arranged so that the inclination direction is swung to the incident side of the tape. A tape guide device having the above-mentioned a to f requirements.