JPH0778944B2 - Cassette recorder - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cassette recorder using a tape cassette.

2. Description of the Related Art In recent years, cassette recorders have been widely used for office machines such as video and audio.

An example of the above-mentioned conventional cassette recorder will be described below with reference to the drawings.

FIG. 12 is a side view showing a state where a conventional cassette recorder supports a tape cassette. In FIG. 12, 1 is a tape cassette, 2 is a chassis, and 3 is a positioning pin of the tape cassette 1, which is attached so as to project on the chassis 2, and the upper surface of the large diameter portion thereof receives the lower surface of the mounted tape cassette 1, The height is regulated, and the small-diameter portion is fitted into a positioning fitting hole provided on the tape cassette 1 to perform positioning in the main plane direction. Reference numeral 4 is a height regulating pin that supports the lower rear surface of the tape cassette 1, and is mounted so as to project onto the chassis 2.

In the thus constructed cassette recorder, the mounted tape cassette is positioned in the main plane direction and the height direction by the positioning pin and the height regulating pin which are implanted on the chassis.

Problems to be Solved by the Invention However, in the above-mentioned configuration, vibrations from the motor, the rotating body of the transmission mechanism in the middle, etc. are transmitted to the tape cassette directly through the positioning pins and the height regulating pins through the chassis. Therefore, there is a problem in that the sound is further transferred to the recording tape via the cassette and becomes muddy or noise, which is a serious obstacle particularly in HiFi devices. Recently, as a countermeasure against this, it has been proposed that the cassette half be made of a vibration-absorbing resin material, but it is not possible to handle it with all cassettes. It is desirable because it can accommodate cassettes.

In view of the above problems, the present invention provides a cassette recorder in which the vibration of the device is not transmitted to the tape cassette.

In order to solve the above-mentioned problems, the cassette recorder according to the present invention is provided with a rubber on a support surface for supporting the tape cassette at a predetermined performance position, or on a positioning surface in the main plane direction of the tape cassette. And the like.

With the above-described structure, the present invention can prevent the vibration from the chassis from being absorbed or vibration-isolated by the vibration absorbing material such as rubber, and thus prevented from being transmitted to the tape cassette, thus preventing deterioration of sound quality during recording or reproduction. can do.

Examples Hereinafter, a cassette recorder according to an example of the present invention will be described with reference to the drawings.

FIG. 1 is a side view showing a cassette supporting state of a cassette recorder according to the first embodiment of the present invention. In FIG. 1, reference numerals 5 and 6 are vibration absorbing materials provided on the cassette positioning pin 3 and the cassette height regulating pin 4, and are attached by adhesion or press fitting. The tape cassette 1 is supported via this vibration absorbing material.

The cassette recorder configured as described above can sufficiently exhibit the vibration absorbing effect and the vibration isolating effect with respect to the vertical vibration of the chassis 2 by the vibration absorbing material such as rubber provided on the supporting surface. The transmission to 1 can be prevented. FIG. 2 is a side sectional view showing the main part thereof.

FIG. 3 shows that, in order to easily hold the vibration absorbing material, a constricted portion is provided at the base of the positioning small diameter portion of the cassette positioning pin 3, and the vibration absorbing material 5 having a hole diameter that fits into the constricted portion is fitted. It is something to try. FIG. 4 shows that the vibration-absorbing material 5 is formed in a cup shape, and the holding is ensured by press-fitting fitting using adhesive or elasticity.

FIG. 5 shows an embodiment in which the tape cassette is supported by the outer ring mountain-shaped protrusions formed integrally with the vibration absorbing material 5 so as to enhance the vibration damping effect, and 7 is the outer ring mountain-shaped protrusions. FIG. 6 shows the outer ring mountain-shaped protrusion 7 in FIG. 5 in order to further improve the vibration damping effect.
Is located outside the large diameter portion of the positioning pin 3. FIG. 7 is a side sectional view of an embodiment in which the tape cassette 1 is also effective against the vibration in the main plane direction, and 8 is a position regulating surface in the main plane direction formed of a vibration absorbing material.
FIG. 8 is a side sectional view of an embodiment of the height regulating pin 4 for regulating the rear height of the tape cassette 1, wherein the vibration absorbing material is cup-shaped and 6 is a cup-shaped vibration absorbing material. 9th
The figure is a side cross-sectional view of an embodiment in which a pipe-shaped vibration absorbing member is fitted and held in a columnar body shorter than a pipe, and 9 is a pipe-shaped vibration absorbing member. FIG. 10 is a side sectional view of an embodiment in which the tape cassette is supported by a plurality of protrusions provided on the upper surface of the vibration absorbing material, 10 is a protrusion, and FIG. 11 is a top view thereof.

The vibration absorbing material can have the required performance by arbitrarily selecting the shape, thickness, composition, hardness, area, etc. as described above. In particular, when it is necessary to use an apparently soft vibration-absorbing material, it is necessary to give consideration so that the correct height can be obtained during deformation. In addition, although the above-mentioned embodiment supports the lower surface of the tape cassette, the present invention is not limited to this.

As described above, according to the present invention, the vibration of the tape cassette and hence the vibration of the tape can be prevented by providing the vibration absorbing material such as rubber on the supporting surface for supporting the tape cassette at the predetermined playing position, and the deterioration of the sound quality can be prevented. can do.

[Brief description of drawings]

FIG. 1 is a side view of a cassette recorder according to the first embodiment of the present invention, FIG. 2 is a side sectional view showing details of essential parts thereof, and FIGS. 3 to 11 show other embodiments of the present invention. FIG. 12 is a side sectional view of a main part, and FIG. 12 is a side view of a conventional cassette recorder. 1 ... tape cassette, 2 ... chassis, 3 ... cassette positioning pin, 4 ... cassette height regulating pin, 5,6 ...
… Vibration absorber.

Claims (8)

[Claims] 1. A cassette recorder having a vibration absorbing material such as rubber on a support surface for supporting a tape cassette at a predetermined performance position. 2. The cassette recorder according to claim 1, further comprising a cassette positioning means for positioning the tape cassette in the main plane direction on the tape cassette supporting surface. 3. A cassette recorder according to claim 2, wherein a vibration absorbing material such as rubber is provided on the position regulating surface of the cassette positioning means in the main plane direction. 4. A cassette positioning means is formed in the shape of a pin protruding above a cassette supporting surface, and has a constricted portion provided at the base thereof and a vibration absorbing material such as rubber having a through hole fitted into the constricted portion. The cassette recorder according to claim 2, wherein the cassette recorder is configured. 5. The cassette recorder according to claim 1, wherein the vibration absorbing material is formed in a cup shape and covers the protruding portion. 6. The vibration absorbing material is formed of a vibration absorbing material such as rubber formed in a pipe shape and a columnar body shorter than the pipe-shaped vibration absorbing material fitted and held with the vibration absorbing material. Cassette recorder. 7. The cassette recorder according to claim 1, wherein the tape cassette is supported by a plurality of projections integrally formed as a vibration absorbing material. 8. The cassette recorder according to claim 1, wherein the tape cassette is supported by an outer ring mountain-shaped projection formed integrally as a vibration absorbing material.