JPH0445903B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a cassette holding device for holding a tape cassette used for recording PCM signals, video signals, etc.

BACKGROUND ART AND PROBLEMS Currently, a tape cassette as shown in FIG. 1 has been proposed for use in recording digital signals such as PCM signals and video signals. That is, in FIG. 1, reference numeral 1 indicates a cassette case, and this cassette case 1 is composed of a pair of cassette case halves 1a and 1b which are joined together by screws. Reference numerals 2a and 2b indicate winding frames, so-called hubs, which are rotatably and loosely fitted into the cassette case 1, and the magnetic tape 3 is wound around the hubs 2a, 2b. 4
A front cover 4 is rotatably provided on the front side of the cassette case 1, and the front cover 4 seals the magnetic tape 3 by covering the front side of the cassette. The front cover 4 is made of elastic synthetic resin and is formed into a shape in which a substantially central portion on the front side of the cassette is curved toward the cassette case 1 side. 4a and 4b are arm portions that pivotally support the front lid 4 on the cassette case 1, respectively.

When storing this tape cassette, the front cover 4
The central part of the front side of the cassette is stretched out by the cassette case 1, and due to the biasing force thereof, the cassette is stably pivoted at a position covering the front side of the cassette so as not to be inadvertently rotated. During recording or reproduction, the front cover 4 is rotated from the front side of the cassette, as shown in FIG. 2, and the magnetic tape 3 is exposed on the front side of the cassette. In this case, the center portion of the front cover 4 is pushed and stretched by the upper surface of the cassette case 1 on the front side of the cassette, and the front cover 4 is inadvertently placed in a position opposite to the upper surface of the cassette case 1 due to the biasing force. It is stably supported so that it does not rotate.
Then, a recording/reproducing head is pressed against the exposed magnetic tape 3 to perform recording or reproduction. After that, when recording or reproduction ends and the storage state is entered, the operation opposite to that described above is performed.

In the recording and reproducing apparatus, a tape cassette is inserted, for example horizontally, into an internal cassette holding device through a cassette insertion section 6 provided on the front panel of the recording and reproducing apparatus 5, as shown in FIG. Then, as shown in FIG. 4, after the tape cassette is inserted horizontally into the cassette hold part 7 that holds the tape cassette, the whole cassette hold part 7 is moved vertically downward, and the front cover 4 is moved to the front cover opening pin 8. The front cover 4 is rotated so that the magnetic tape 3 is exposed on the front side of the tape cassette. Therefore, the front lid 4
In order to rotate the cassette holding device, a space is required for the movement of the cassette holding device, and this space becomes a so-called dead space.
This was a serious problem for miniaturization. Furthermore, in order to rotate the front cover 4, a mechanism for moving the cassette holding device is required, which increases the number of parts and complicates the structure.

OBJECTS OF THE INVENTION In view of the above, an object of the present invention is to provide a cassette holding device that can be used as a recording/reproducing device in a smaller size, with fewer parts, and with a simpler configuration.

Summary of the Invention The present invention provides a cassette holding device into which a tape cassette having a rotatable lid is inserted, in which a guide groove that is inclined with respect to the tape cassette insertion direction is provided in a guide wall that forms a space into which the tape cassette is inserted. This is a cassette holding device in which the lid of a tape cassette is rotated by the guide groove in response to insertion of the tape cassette. According to the cassette holding device of the present invention, a recording/reproducing device can be made smaller and can be made with fewer parts. You can obtain something that has a small number of points and can be easily configured.

Embodiment Hereinafter, an embodiment of the cassette holding device of the present invention will be described with reference to FIGS. 5 to 8.
In FIGS. 5 to 8, parts corresponding to those in FIGS. 1 to 4 are designated by the same reference numerals, and detailed explanation thereof will be omitted.

In this example, as shown in FIG.
The tape cassette 1 is made up of a through hole corresponding to the dimensions of the tape cassette 1. In this case, the width of this space 9 is made approximately equal to the width w of the tape cassette 1 excluding the plate thickness e of the left and right arm portions 4a and 4b of the front cover 4, and the height is made slightly equal to the thickness of the tape cassette 1. The guide grooves 11 are dimensioned to have play, and guide grooves 11 are provided in left and right guide walls 10 forming this space 9 so as to expand the space 9 in the left and right direction, respectively. The depth e of the guide groove 11 is made approximately equal to the thickness of the front lids 4a and 4b as shown in FIGS. 5 and 6, and is approximately L-shaped when viewed from the left and right directions as shown in FIG. 7. 12 is guide groove 1
This is an inclined portion provided so as to be inclined upward at a predetermined position on the back side of 1.

Here, the inclined portion 12 will be further explained.

This sloped portion 12 includes a planar sloped portion 12a and a cylindrical curved surface portion 12b continuous with this sloped portion 12a.
It consists of In this case, the height h of the slope portion 12a is set equal to the play of the tape cassette 1 with respect to the height of the space 9. Further, the curved surface portion 12b is set so as to be in contact with a horizontal surface at a position continuous with the slope portion 12a. Further, reference numeral 13 denotes a front lid return member provided at a corner of the guide groove 11 opposite to the inclined portion 12.

The operation of the cassette hold device constructed in this way will be explained.

First, as shown in FIG. 8A, the tape cassette 1 with the front cover 4 covering the front side of the cassette is inserted into the space 9 of the cassette holding section 7. At this time, the arm portions 4a, 4b of the front lid 4 and both left and right end portions of the cassette case body 1 are located within the guide groove 11, respectively. Then, the tape cassette 1 is further inserted and the arms 4a, 4 of the front cover 4 are inserted as shown in FIG. 8B.
When b climbs over the slope part 12a of the slope part 12,
The tape cassette 1 is moved upward by the height h of this slope portion 12a. At this time, some play in the vertical direction of the tape cassette 1 with respect to the space 9 is absorbed. From this state, tape cassette 1
When the cassette case 1 is inserted, the arms 4a and 4b of the front cover 4 are moved along the curved surface 12b of the inclined portion 12, that is, rotated relative to the cassette case 1, as shown in FIG. 8C. In this case, since the curved surface portion 12b contacts the horizontal surface at a position continuous with the slope portion 12a, the amount of rotation of the front cover 4 is relatively small relative to the distance over which the tape cassette 1 is inserted. Therefore, the relatively large force required to rotate the front cover 4 from the front side of the cassette can be obtained in response to the insertion of the tape cassette 1, and the tape cassette 1 can be inserted smoothly, and the front cover 4 can be rotated at this time. be done. On the other hand, the front cover 4 is rotated from the position covering the front side of the cassette, and when the front cover 4 is rotated approximately 45 degrees so that the center part of the front cover 4 presses the corner of the tape cassette 1 on the front side of the cassette, the front cover 4 is rotated approximately 45 degrees. The biasing force is at its maximum, and if the front cover 4 is turned upward even slightly from this state, the front cover 4 will rotate by itself to a position facing the upper surface of the cassette case 1 as shown in FIG. move. Therefore, when the cassette case 1 is rotated from the state shown in FIG. 8C beyond the approximately 45 degree rotation position where the biasing force is maximum, the biasing force of the front cover 4 causes the cassette case 1 to move as shown in FIG. 8D. The front cover 4 itself rotates so as to face the upper surface on the front side of the cassette. In this manner, by simply inserting the tape cassette in one direction, the front cover 4 can be rotated to expose the magnetic tape 3 on the front side of the cassette as shown in FIG.

Next, as shown in FIG. 8D, the tape cassette inserted into the space 9 of the cassette holding section 7 is pulled out. At this time, the arm portion 4 of the front lid 4
As the tape cassettes a and 4b abut against the front lid return member 13 of the guide groove 11 and the tape cassette is pulled out, the front lid 4 is rotated by the front lid return member 13 as shown in FIG. 8E. When the cassette is further removed, the front cover 4 is rotated to a position covering the front side of the cassette, and the magnetic tape 3 is sealed as shown in FIG.

According to the cassette holding device of the present example described above, the guide wall 10 forming the space 9 into which the tape cassette is inserted is provided with the guide groove 11 having the inclined portion 12 inclined with respect to the insertion direction of the tape cassette. Since the front cover 4 of the tape cassette is rotated by the inclined part 12 of the guide groove 11 in accordance with the insertion of the tape cassette, the front cover 4 can be opened simply by inserting the tape cassette into the space 9 of the cassette holding part 7. Can rotate. Therefore, there is no need to move the cassette holder in order to rotate the front cover 4, and a recording/reproducing apparatus that is more compact can be obtained since no dead space is required for the cassette holder to move. Furthermore, since there is no need to move the cassette holding device to rotate the front cover 4, the structure is simple and the number of parts can be reduced as there is no need for a mechanism for this movement. , there is an advantage of being able to obtain something small and inexpensive.

Other embodiments of the cassette holding device of the present invention are shown in FIGS. 9 and 10, respectively. In FIGS. 9 and 10, parts corresponding to those in FIGS. 5 to 8 are given the same reference numerals, and detailed explanation thereof will be omitted.

The one shown in FIG. 9 has a cylindrical inclined portion 12 provided in the guide groove 11, and the one shown in FIG. 9 is also similar to the embodiments shown in FIGS. It is easy to understand that similar effects can be obtained.

Also, in the example shown in FIG. 10, the inclined portion 12 provided in the guide groove 11 is made into a planar shape, and the example shown in FIG. 10 is also different from the embodiments shown in FIGS. It is easy to understand that similar effects can be obtained.

Further, in the above embodiment, the case where the guide groove 11 having the inclined portion 12 is provided on the left and right guide walls 10 has been described, but the guide groove 11 having the inclined portion 12 only on either one of the left and right guide walls 10. may be provided. or,
In the above-mentioned embodiment, a front lid return member 13 is provided for each guide groove 11, so that the arms 4a and 4b on both sides of the front lid 4 abut against this front lid return member 13 when the tape cassette is removed. When the tape cassette is removed, the front lid return member 13 may abut against the front lid 4 at one or more locations. It goes without saying that the present invention is not limited to the above-described embodiments, and can take various other configurations without departing from the gist of the present invention.

Effects of the Invention According to the cassette holding device of the present invention, a guide groove having an inclined portion inclined with respect to the insertion direction of the tape cassette is provided in the guide wall forming a space into which the tape cassette is inserted, and the inclined portion of the guide groove Since the front cover of the tape cassette is rotated in accordance with the insertion of the tape cassette, the front cover can be rotated simply by inserting the tape cassette into the space of the cassette holding section. Therefore, it is not necessary to move the cassette holder to rotate the front cover, and a recording/reproducing apparatus that is more compact can be obtained since a dead space in which the cassette holder is moved is not required. In addition, since there is no need to move the cassette holding device to rotate the front cover, the structure is simple and the number of parts can be reduced as there is no need for a mechanism for this movement. There is an advantage of being able to obtain something small and inexpensive.

[Brief explanation of drawings]

Fig. 1 is a perspective view showing an example of a tape cassette with a rotatable front cover, Fig. 2 is a perspective view showing a state in which the front cover of Fig. 1 is rotated, and Fig. 3 is a perspective view showing an example of a recording/reproducing device. FIG. 4 is a schematic diagram for explaining a conventional cassette hold device, FIG. 5 is a schematic diagram for explaining an embodiment of the cassette hold device of the present invention, and FIG. FIG. 7 is a side view for explaining the operation of FIG. 5; FIGS. 8A, B, C, D, and E are side views for explaining the operation of the present invention; FIG. Figures 1 and 10 are side views for explaining other embodiments of the present invention. 1 is a cassette case, 3 is a magnetic tape, 4 is a front cover, 4a and 4b are arms of the front cover 4, 5 is a recording/reproducing device, 7 is a cassette hold part, 9 is a space into which a tape cassette is inserted, 10 is a guide wall, 11 is a guide groove, and 12 is an inclined portion.

Claims (1)

[Claims] 1. In a cassette holding device into which a tape cassette having a rotatable lid is inserted, a guide groove having an inclined portion inclined with respect to the insertion direction of the tape cassette is provided in a guide wall forming a space into which the tape cassette is inserted. A cassette holding device characterized in that the lid of the tape cassette is rotated by the inclined portion of the guide groove in response to insertion of the tape cassette.