JPH0454594Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field] The present invention relates to a tape cassette positioning mechanism used in a tape player, and particularly to a tape cassette positioning mechanism suitable for use in a vehicle-mounted tape player.

[Conventional technology]

Conventionally, when positioning a tape cassette in a car-mounted tape player, as shown in FIG. It was common practice to position the tape cassette 3 by inserting it through the holes 14, 14 of the tape cassette 3.

[The problem that the idea aims to solve]

However, the interior of an automobile tends to reach a high temperature due to direct sunlight, an interior heater, etc., and especially when the automobile is left in the hot sun, the temperature inside the automobile becomes extremely high. As a result, the tape cassette 3 is deformed as shown in FIG. 4, and when it is attached to a tape player, the tape cassette 3 may come up from the guide pin 13 and shake.

Therefore, when a listener loads the deformed tape cassette 3 into a tape player in an attempt to reproduce the content recorded on the tape cassette 3, the tape cassette 3 will not be positioned at a predetermined position and, for example, playback operation will become impossible. Such problems were occurring.

The object of the present invention is to eliminate the above-mentioned problems, ensure the positioning of a tape cassette in a tape player, and reduce manufacturing costs.

[Means to solve the problem]

In order to solve the above problems, the present invention is such that a pinch roller bracket for supporting a pinch roller is rotatably supported on a mounting shaft fixed on a chassis, and a tape cassette containing a magnetic tape is attached to the chassis. In a tape player that is mounted from above, a guide member having a guide portion whose diameter becomes smaller toward the top is attached to the mounting shaft of the pinch roller bracket, and the tape cassette slides its end onto the guide portion of the guide member. It is designed so that it can be attached to a predetermined position while moving.

[Effect]

According to the above means, since the end of the tape cassette is slidably mounted on the guide portion of the guide member, the tape cassette can be reliably positioned simultaneously with this mounting operation.

Further, since the guide member is attached to the attachment shaft of the pinch roller bracket, no separate attachment member is required.

〔Example〕

Hereinafter, embodiments of the present invention will be described based on the drawings. Note that the same parts or parts as in the conventional example are given the same reference numerals, and detailed explanation thereof will be omitted.

1 and 2 show an embodiment of the present invention,
FIG. 1 is a plan view thereof, and FIG. 2 is an enlarged sectional view of the main part.

In the figure, reference numeral 1 denotes a chassis of an in-vehicle tape player, and a head base 2 is placed on the upper surface of the chassis 1 so as to be movable in the direction of the arrow. A magnetic head 4 is provided approximately at the center of the head base 2 for reproducing the contents recorded on the magnetic tape 11 (see FIG. 3) in the tape cassette 3. Pinch roller brackets 7, 7 are rotatably mounted on both sides of the magnetic head 4 by mounting shafts 5, 5 fixed on the chassis 1, respectively. Pinch roller bracket 7
As shown in FIG. 2, it has a substantially U-shape when viewed from the side, and a pinch roller 8 is provided in the gap 10 so as to be rotatable about the mounting shaft 6. Further, the gap 10 of the pinch roller bracket 7 is provided with a curved surface portion (guide portion) 9a at the upper end that becomes smaller in diameter toward the top, and a sleeve 9 having a coaxial portion 9b provided at the lower part of the curved surface portion 9a. (guiding member) is provided. This sleeve 9 is rotatably supported by the mounting shafts 5, 5 of the pinch roller bracket 7. The material of the sleeve 9 may be either metal or synthetic resin.

Next, the operation of the tape player having the above configuration will be explained.

Tape cassette 3 is inserted from above against chassis 1.
When installing the tape cassette 3, first
When the tape cassette 3 comes into contact with the curved surface 9a of the sleeve 9 and the tape cassette 3 further descends, the end 3a moves while sliding on the curved surface 9a of the sleeve 9.
Therefore, the tape cassette 3 is moved slightly in the direction of the arrow in FIG. 1 and is positioned at a predetermined mounting position without wobbling. Then, as shown in FIG. 2, the tape cassette 3 is completely installed with the end 3a of the tape cassette 3 in contact with the side of the sleeve 9. In this way, the tape cassette 3 is attached while sliding its end 3a onto the curved surface 9a of the sleeve 9, so that the tape cassette 3 is attached to the chassis 1 at the same time as the attachment operation.
It can be positioned reliably without wobbling on the top.

When a reproduction switch (not shown) or the like is operated with the tape cassette 3 attached, the head base 2 moves in the direction of the arrow and the magnetic head 4 comes into contact with the magnetic tape 11 inside the tape cassette 3.

Further, as the head base 2 moves, one pinch roller bracket 7 rotates about the mounting shaft 5 mounted on the chassis 1 as a fulcrum, and the pinch roller 8 supported by the pinch roller bracket 7 and the capstan 12 ( (see FIG. 3), the magnetic tape 11 is held between the two. The capstan 12 is driven to rotate, the magnetic tape 11 runs, and the contents recorded on the magnetic tape 11 are reproduced by the magnetic head 4.

[Effect of idea]

As explained above, according to the present invention, a guide member having a guide portion whose diameter becomes smaller toward the top is mounted on the chassis, and the tape cassette is placed in a predetermined position while sliding its end onto the guide portion of the guide member. Since the tape cassette is mounted at the same time as the mounting operation, the positioning of the tape cassette can be reliably performed.

Furthermore, by providing the above-mentioned guide member, not only does the conventional positioning member such as a guide pin become unnecessary, but also the need to provide a separate mounting shaft is eliminated by attaching the guide member to the mounting shaft of the pinch roller bracket. It becomes possible to reduce the manufacturing cost of the tape player.

[Brief explanation of the drawing]

Figures 1 and 2 both show an embodiment of the present invention, Figure 1 is a plan view, Figure 2 is an enlarged sectional view of the main part, and Figures 3 and 4 are conventional examples. , FIG. 3 is a plan view, and FIG. 4 is a sectional view of a main part. 1... Chassis, 3... Tape cassette, 3a
...End part, 5...Mounting shaft, 7...Pinch roller bracket, 8...Pinch roller, 9...Sleeve (guide member), 9a...Curved surface part (guide part), 11
……Magnetic tape.

Claims (1)

[Scope of utility model registration request] In a tape player, a pinch roller bracket for supporting a pinch roller is rotatably supported on a mounting shaft fixed on a chassis, and a tape cassette containing a magnetic tape is mounted from above on the chassis. A guide member having a guide portion that becomes smaller in diameter toward the tape is attached to the mounting shaft of the pinch roller bracket, and the tape cassette is installed in a predetermined position while sliding its end onto the guide portion of the guide member. A tape cassette positioning mechanism for a tape player, characterized in that: