JP2544952Y2 - Small cassette tape player - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a small cassette tape player such as a headphone stereo cassette player.

[0002]

2. Description of the Related Art For example, as shown in FIG. 4, a headphone stereo cassette player comprises a cabinet 2 and a chassis 3 which constitute an outer shell of a player body 1, and a lid 4 is pivotally supported on the player body 1 so as to be openable and closable. By inserting and holding the tape cassette 5 inside the lid 4 and closing the lid 4 and operating a switch or the like in this state, the magnetic tape can be run to reproduce information such as music recorded on the tape. It has become.

In this type of cassette tape player, a tape running mechanism and a hard printed circuit board for control are housed and arranged between the cabinet 2 and the chassis 3 of the player body 1, and the arrangement of each component is devised. By elaborating, the size and thickness were reduced.

FIGS. 5 and 6 show an example of a component arrangement, 6 is a tape running mechanism, 7 is a motor as a drive source, 8 is a solenoid for switching the mechanism 6 to each writing mode, and 9 is a front and back side. A control hard printed circuit board having electric components 10 inserted on both sides, 11 is a driving hard printed circuit board to which terminals of a motor 7 and a solenoid 8 are soldered, and 12 is an electrical connection between the printed circuit boards 9 and 11. The printed circuit board 9 is a lead wire, and the distance a, a 'obtained by adding the clearance required for production and assembly to the maximum height of the component 10 disposed on each of the front and back surfaces is determined by the inner surface of the cabinet 2 and the reference surface of the chassis 3. (P-P 'plane), and the other printed circuit board 11 sets a distance b determined by the dimensions of the motor 7 and the solenoid 8 with respect to the reference plane of the chassis 3. By previously, the entire player was configured to smaller and thinner.

[0005]

By the way, in the conventional structure, when the overall structure of the player is designed to be small and thin, the arrangement height of the printed circuit boards 9 and 11 (the reference surface of the chassis 3). It is rare that the distances a 'and b) from the distance coincide with each other, and usually a difference in elevation occurs.

[0006] Generally, the rigid printed circuit boards 9 and 11
If there is a height difference in the arrangement height of the two, each printed circuit board is separately molded and attached to the predetermined height,
The configuration in which the two are electrically connected to each other by a lead wire or a flexible board has been exclusively used.In this configuration, both printed boards need to be manufactured separately, and many Parts are required and the handling is troublesome, and the assembling work is also complicated, the workability is poor, and the cost is extremely disadvantageous.

[0007]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and includes a driving mechanism, a motor serving as a driving source of the mechanism, and a control circuit in the same space in a player body. in those interior electrical components or the like for construction, either the front and back of the motor-
The printed circuit board part for motor drive provided on one side and the printed circuit board part for control for mounting electric components for control on both front and back sides are integrally formed via a connecting part having a narrow width and a predetermined length. To make one hard printed circuit board,
The rigid printed circuit board is mounted in the player main body such that the two printed circuit board sections are substantially parallel to each other and have different heights due to the bending of the connection section.

[0008]

According to the above construction, each printed circuit board is attached to a predetermined height by the bending of the connecting portion, thereby suppressing the height of the internal space of the player main body.
The thickness can be reduced. In addition, these printed circuit boards can be manufactured on a single board, so that lead wires and the like are not required, the number of components can be reduced, workability during assembly is significantly improved, and cost is improved. Become.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The embodiment of the present invention shown in FIGS. 1 to 3 will be described in detail. In FIGS. 1 to 3, parts common to FIGS. 4 to 6 are denoted by common reference numerals.

In the illustrated embodiment, a control hard printed circuit board (control printed circuit board section) 9 and a driving hard printed circuit board (drive printed circuit board section) 11 are integrally formed via a connecting section 13, that is, 1. The printed circuit boards 9 and 11 have a pattern for connecting the circuit patterns of the printed circuit boards 9 and 11 in a predetermined relationship. The two printed boards 9 and 11 are integrally formed of, for example, a glass / epoxy board of about 0.4 mm, and the width of the connecting portion 13 of both is set to the minimum necessary width so that the connecting portion 13 can be appropriately bent. To be configured.

The two printed circuit boards 9 and 11 are attached to the boss portions 3a and 3b on the chassis 3 with screws 14.
They are arranged substantially parallel to each other and at predetermined heights. At this time, the connecting portion 13 between the two printed boards 9 and 11 has an appropriate width.
By suitably bending and having a length , both printed circuit boards 9 and 11 can be easily mounted at predetermined heights.

In the illustrated embodiment, a pressing claw 15 for restricting the bending direction of the connecting portion 13 and preventing the connecting portion 13 from lifting up.
Are integrally protruded from the chassis 3, and the connecting portions 13 are engaged with the holding claws 15.

In order to reduce the weight of the cassette player, it is desirable to use a molded product made of synthetic resin for the chassis 3. When this type of molded product is used, the holding claw 15 and the boss portions 3a and 3b are also integrated. Can be molded.

The width and length of the connecting portion 13 and the material and
The thickness and the like can be arbitrarily selected according to the amount of bending required for the connecting portion 13.

In addition, the present invention is not limited to the embodiment described above and shown in the drawings, and can be implemented with appropriate modifications without departing from the scope of the invention.

[0016]

As described above, according to the present invention, a small cassette tape containing a traveling mechanism, a motor serving as a driving source of the mechanism, and electric components for forming a control circuit in the same space in the player body. In the player, a motor drive printed circuit board portion on which a motor is disposed on one of the front and back surfaces and a control printed circuit board portion on which electric control components are mounted on both front and back surfaces have a narrow width and a predetermined length. By forming one rigid printed circuit board by molding integrally via the connecting portion, and by mounting the two printed circuit board portions in the player body so as to be substantially parallel to each other and have different heights by bending of the connecting portion, A plurality of printed boards conventionally manufactured separately can be manufactured and handled as one board, and connection means such as lead wires can be omitted. Significant improvement in cost can be achieved. In addition, since the control electric parts are mounted on both front and back sides of the control printed circuit board part, a motor larger than the control electric parts and this is mounted on one side It is possible to fit the drive printed circuit board within the range of the thickness of the control printed circuit board including the electric components on both sides,
The miniaturization and thinning of the small cassette tape player can be realized more effectively.

[Brief description of the drawings]

FIG. 1 is a plan view showing the internal structure of a cassette tape player according to an embodiment of the present invention.

FIG. 2 is a schematic sectional view taken along line AA ′ of FIG. 1;

FIG. 3 is a schematic sectional view taken along the line BB ′ of FIG. 1;

FIG. 4 is a schematic perspective view showing the open state of the small cassette tape player.

FIG. 5 is a plan view showing the internal structure of a conventional small cassette tape player.

FIG. 6 is a schematic sectional view taken along line CC ′ of FIG. 5;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Player main body 7 Motor 6 Tape running mechanism 9 Control printed circuit board (Control printed circuit board part) 10 Components 11 Mechanism printed circuit board (Drive printed circuit board part) 13 Connection part

Claims (1)

(57) [Scope of request for utility model registration] 1. A traveling mechanism in the same space within the player body, in which interior the electrical components or the like for construction of the motor, and a control circuit as a drive source of the mechanism, the motor sides one of A motor drive printed circuit board disposed on a surface and a control printed circuit board mounted on both front and back sides of a control electric component are integrally formed through a connecting portion having a narrow width and a predetermined length. Characterized in that the rigid printed circuit board is mounted in a player body such that the two printed circuit board sections are substantially parallel to each other and have different heights due to the bending of the connecting portion. Cassette player.