JPH0732777U - Tape cassette - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a tape cassette that does not cause a defective insertion when it is inserted into a drive. [Structure] A cassette body composed of an upper half and a lower half that rotatably accommodates a pair of supply and take-up hubs around which a magnetic tape is wound, and a slider is slidable in the front-rear direction so as to cover the lower half. A tape cassette in which a lid is rotatably provided at a front end portion of the cassette main body, the front wall of the left and right inner side walls of the lid is more than the rotation axis of the lid provided on the inner side wall. A lid-side protrusion is provided near the slider, and slider-side protrusions that engage with the lid-side protrusion when the lid is closed are provided on the left and right inner side walls of the slider. The engagement is released by sliding the slider backward.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tape cassette, and more particularly to a tape cassette that does not cause a defective insertion when it is inserted into a drive.

[0002]

[Prior art]

 A general tape cassette, like the tape cassette of the present invention shown in FIG. 1, is composed of an upper half 2 and a lower half 3 which rotatably accommodate a pair of supply and winding hubs on which magnetic tape is wound. A slider 4 is provided on the cassette body 1 so as to cover the lower half 3 and open and close a hub hole thereof so as to be slidable in the front-rear direction, and a lid 5 is rotatable on a front end portion of the cassette body 1. It is provided in. The slider 4 is mounted with a clearance between it and the width direction of the lower half 3 and the surface of the lower half 3 so that it slides smoothly when the tape cassette is inserted into the drive. In addition, it is always biased in the closing direction by the elastic force (restoring force) of the built-in spring, and is slid backward to open and close the hub hole only when it is inserted into the drive.

[0003]

[Problems to be solved by the device]

 However, in the general tape cassette as described above, as shown in FIG. 5, the outer corner portion 42 of the front end portion of the slider 4 is angular, and as described above, the slider 4 has the lower half portion. It is attached with a clearance provided in the width direction of 3 and its surface 3, and is floated above the lower half 3. Therefore, when the tape cassette is inserted into the drive, the slider 4 is smoothly inserted, as shown in FIG. 5, because the outer corner portion 42 of the front end, which is more floating than the lower half 3, is caught by the frame of the drive. It may not be possible.

Therefore, an object of the present invention is to provide a tape cassette that does not cause a defective insertion when it is inserted into a drive.

[0005]

[Means for Solving the Problems]

 According to the present invention, a cassette main body composed of an upper half and a lower half, which rotatably accommodates a pair of supply and take-up hubs around which magnetic tape is wound, covers the lower half so that a slider moves in the front-rear direction. In a tape cassette that is slidably provided, and a lid is rotatably provided at a front end portion of the cassette body, in a left and right inner side wall of the lid, a rotation axis of the lid provided on the inner side wall. The lid-side protrusions closer to the front wall than the front-side wall, and the slider-side protrusions on the left and right inner side walls of the slider that engage with the lid-side protrusions when the lid is closed. The object is achieved by providing a tape cassette characterized in that the engagement with the slider-side protrusion is released by sliding the slider in the rearward direction.

[0006]

[Action]

 In the tape cassette of the present invention, when not in use, the lid-side protrusion provided on the inner wall of the lid and the slider-side protrusion provided on the inner wall of the slider are engaged with each other, and the outer side of the front end of the slider is Since the corners are in close contact with the lower half, the outer corners are smoothly inserted into the drive during use without the risk of being caught by the drive frame.

[0007]

【Example】

 An embodiment of the tape cassette of the present invention will be described below with reference to the drawings. 1 is a perspective view showing the appearance of an embodiment of the tape cassette of the present invention, FIG. 2 is a plan view seen from the line AA 'in FIG. 1, and FIG. 3 is a line BB' in FIG. FIG. 4 is an enlarged cross-sectional view showing a main part, and FIG. 4 is an enlarged cross-sectional view showing an internal mechanism taken along line CC ′ in FIG. 1.

As shown in FIG. 1, the tape cassette of the present embodiment is a cassette body composed of an upper half 2 and a lower half 3 which rotatably accommodates a pair of supply and take-up hubs around which a magnetic tape is wound. 1, a slider 4 is slidably provided in the front-rear direction so as to cover the lower half 3, and a lid 5 is rotatably provided at a front end portion of the cassette body 1. This structure is similar to a conventional tape cassette.

Thus, in the tape cassette of the present embodiment, as shown in FIGS. 2 and 3, the left and right inner side walls 51, 51 of the lid 5 are provided on the inner side walls 51, 51. Lid-side protrusions 51 ', 51' are provided closer to the front wall 52 than the pivot shaft 53 of the lid 5, and the lid-side protrusions 51 ', 51 are provided on the left and right inner side walls 41, 41 of the slider 4. 'And slider-side protrusions 41' and 41 'which are engaged under the closed state of the lid 5 are provided, and the engagement between the lid-side protrusions 51' and 51 'and the slider-side protrusions 41' and 41 'is the above. It is adapted to be released by sliding the slider 4 in the backward direction.

The tape cassette of this embodiment will be further described. As shown in FIGS. 2 and 3, the lid-side projection 51 ′ is integrally provided with the inner side wall 51 of the lid 5, and On the side opposite to the front wall 52, there is an inclined surface facing the upper half 2. Further, the slider-side protrusion 41 ′ is integrally provided with the inner side wall 41 inside the upper end of the inner side wall 41 of the slider 4, and when the lid 5 is closed, the slider side protrusion 41 ′ is provided on the side of the lid 4. It has an inclined surface that is in close contact with the inclined surface of the protrusion 51 '.

As shown in FIGS. 2 and 3, the lid-side protrusion 51 ′ and the slider-side protrusion 41 ′ are brought into close contact with each other under the closed state of the lid 5, and as a result, The slider 4 does not separate from the lower half 3 and the front end portion 42 of the slider 4 does not protrude below the lower half 3.

The lid-side protrusion 51 ′ and the slider-side protrusion 41 ′ are similarly provided on the inner side walls opposite to the inner side walls 51, 41 described above.

In the tape cassette of the present embodiment configured as described above, the lid side projection 51 ′ is provided on the inner side wall 51 of the lid 5 and the inner side wall 41 of the slider 4 is set as described above. Since the slider-side projection 41 'is provided, both the projections 51', 41 'engage with each other when the lid 5 is closed, and the front end portion 42 of the slider 4 projects below the lower half 3. Therefore, when the tape cassette is inserted into the drive, the tape cassette is not likely to be improperly inserted due to the outer corner portion 42 being caught by the frame of the drive. Further, in the tape cassette of this embodiment, when the tape cassette is inserted into the drive, the engagement of the protrusions 51 'and 41' is automatically released, and there is no problem in use.

It should be noted that the present invention is not limited to the above-described embodiment, and the shapes of the engaging portions of the lid-side projection and the slider-side projection are such that the engagement of both projections is in the rearward direction of the slider. It is enough if it can be released by sliding.

[0015]

[Effect of device]

 In the tape cassette of the present invention, since the outer corner of the front end of the slider is in close contact with the lower half, there is no risk of improper insertion when being inserted into the drive.

[Brief description of drawings]

FIG. 1 is a perspective view showing the external appearance of an embodiment of a tape cassette of the present invention.

FIG. 2 is a plan view seen from the line AA ′ in FIG.

FIG. 3 is an enlarged cross-sectional view showing a main part taken along line BB ′ in FIG.

FIG. 4 is an enlarged cross-sectional view showing an internal mechanism of CC ′ line in FIG. 1 omitted.

FIG. 5 is a view corresponding to FIG. 4 in a conventional tape cassette.

[Explanation of symbols]

 1 cassette body 2 upper half 3 lower half 4 slider 41 inner wall 41 'slider side protrusion 42 outer corner 5 lid 51 inner wall 51' lid side protrusion 52 front wall 53 turning shaft

Claims (1)

[Scope of utility model registration request] 1. A cassette main body composed of an upper half and a lower half, which rotatably accommodates a pair of supply and take-up hubs around which a magnetic tape is wound, and a slider in the front-back direction so as to cover the lower half. In a tape cassette that is slidably provided and a lid is rotatably provided at a front end portion of the cassette main body, the left and right inner side walls of the lid are provided with a rotation axis of the lid provided on the inner side wall. Lid-side protrusions are provided near the front wall, and slider-side protrusions that engage with the lid-side protrusions in the closed state of the lid are provided on the left and right inner side walls of the slider. A tape cassette characterized in that the engagement with is released by sliding the slider in the backward direction.