KR900008773B1 - Tape cassette - Google Patents

Abstract

No content.

Description

Tape cassette

1 is a perspective view showing an example of a tape cassette having a rotatable front cover and a slide movable slider.

2 is a perspective view showing a state in which the slider is moved backward while the front cover of FIG. 1 is rotated upward.

Figure 3 is an exploded perspective view showing an embodiment of the tape cassette of the present invention.

4 is an enlarged perspective view showing the main part of FIG. 3 in detail.

5 is a perspective view showing the inside of the upper half of FIG.

6 is a cross-sectional view for explaining the slider in FIG.

FIG. 7 is a perspective view showing a state when no use of FIG.

8 is a schematic diagram for explanation of FIG.

9, 10, 11, and 12 are schematic diagrams for explaining the operation of Fig. 3, respectively.

FIG. 13 is a perspective view showing a state in use of FIG. 3; FIG.

14 is a schematic diagram for explaining FIG.

Figure 15 is an exploded perspective view showing another embodiment of the tape cassette of the present invention.

16 and 17 are schematic diagrams for explaining the operation of FIG. 15, respectively.

* Explanation of symbols for main parts of the drawings

1: cassette box 2, 3: upper half and lower half

3a: Opening and closing part 4a, 4b: Reel hub

5a, 5b: Rail shaft insertion hole 6: Magnetic tape

8: front cover 9: slider

9a, 9b: Rail shaft insertion counter hole 9d, 9e: Side plate part

9i: engaging portion 9j: contact piece

9k: Cutting part for lockhees 9l: Locking ball

15, 28: engaging pieces 15a, 28a: inclined surface portion

15c: protrusion 28c: lock click

The present invention relates to a tape cassette suitable for use in recording digital signals, for example PCM signals.

At present, a PCM recording and reproducing apparatus for converting analog signals such as acoustic signals into digital signals, for example, PCM signals, and recording (or reproducing) on magnetic tapes has been proposed. As the PCM recording and reproducing apparatus, a relatively high recording density is obtained by using a rotating head. In the PCM recording / reproducing apparatus using this rotating head, magnetic tape is taken out of the tape cassette during recording (or reproducing), and recording (or reproducing) is performed while being loaded onto the rotating drum provided with the rotating head.

However, in the tape cassette which loads the magnetic tape, when the finger touches the magnetic tape and the holding component adheres to it, or dirt, etc., dropouts occur in the playback signal, the finger may touch the magnetic tape or get dust on it. It is necessary to seal the magnetic tape as far as possible. In addition, a space for inserting the guide system is required so that the magnetic tape can be taken out from the tape cassette during recording (or reproduction).

For this purpose, the tape cassettes shown in FIGS. 1 and 2 are proposed. That is, in FIGS. 1 and 2, reference numeral 1 denotes a cassette box body, and the cassette box body 1 is composed of a pair of upper half portions 2 and lower half portions 3 joined by screwing. have. 2a is a transparent window provided on the upper surface of the upper half 2. (4a) and (4b) are housed in the cassette box (1), a pair of rails that are loosely fitted to rotate in a pair of rail shaft insertion holes (5a) and (5b) installed at a predetermined position of the lower half (3) It is a hub, and the magnetic tape 6 is wound around this pair of rail hubs 4a and 4b. (7a) and (7b) are tape guide posts provided to be biased to the front and rear side walls, respectively, and the magnetic tape 6 is wound in parallel to the tape guide posts 7a and 7b. It is made to be able to drive the predetermined position of the negative. (3a) is an opening and closing portion in which the lower half portion 3 on the back side of the magnetic tape 6 wound around the tape guide posts 7a and 7b has a predetermined width and becomes substantially rectangular. In the opening / closing portion 3a, a guide system for taking out a magnetic tape from a recording / playback apparatus is inserted.

(8) is a front cover which is axially supported to rotate on the front side of the cassette box 1 in the arm portions 8a and 8b provided on the left and right sides, and the front cover 8 The front part of itself 1 is opened and closed.

(9) is an approximately " c " -shaped slider configured to slide in the front-rear direction opposite to the lower surface portion and the left and right sidewall portions of the lower half portion 3. As shown in FIG. Further, 9a and 9b respectively correspond to the rail shaft insertion holes 5a and 5b in the state where the slider 9 slides backward to open the opening and closing portion 3a. It is a rile shaft insertion counter hole formed by drilling. 10a and 10b are positioning holes formed on the lower surface side corresponding to the tape guide posts 7a and 7b, respectively.

When the tape cassette is not in use, as shown in FIG. 1, the front portion of the cassette box 1 is closed by the front cover 8, and the slider 9 is slid forward to open and close the portion 3a, The rail shaft insertion holes 5a, 5b and positioning holes 10a, 10b are closed by the slider 9, and the magnetic tape 6 is sealed in the cassette box body 1. As shown in FIG.

At the time of use, as shown in FIG. 2, the slider 9 slides backward so that the opening-closing part 3a, the rail shaft insertion hole 5a, 5b, and the positioning hole 10a, 10b are At the same time, the front cover 8 is rotated upward, and the magnetic tape 6 is exposed to the front portion of the cassette box 1, and the opening and closing portion 3a, the rail shaft insertion hole 5a, 5b and A guide system, a rail shaft and a positioning pin are inserted into the positioning holes 10a and 10b, respectively, and the magnetic tape 6 is pulled forward from the front part of the cassette box 1 by the guide system and rotated. The recording (or reproduction) is performed by loading on the drum.

By the way, the magnetic tape 6 loaded in such a tape cassette has a magnetic surface facing the front cover 8. For this reason, when not in use, the front cover 8 should not be rotated so that the front part of the cassette box 1 can be opened by simple operation.

In view of this point, an object of the present invention is to obtain a tape cassette in which the front cover is not rotated to open the front part by a simple operation when not in use with a simple configuration.

The present invention is installed so that the front cover can be rotated on the cassette box having the opening and closing portion at a predetermined position, and installed to slide the slider on the cassette box, opening and closing the opening and closing by the front cover and the slider, In the tape cassette for locking the rotation of the front cover, a fastening piece is provided near the opening and closing portion of the cassette box, and a fastening part is provided on the slider in relation to the fastening piece. The sliding movement of the slider with respect to the cassette box is regulated by engaging with the engaging portion. According to the tape cassette of the present invention, the front cover is rotated so as to open the front portion by simple operation when not in use with a simple configuration. There is a profit to get things done.

Hereinafter, an embodiment of the tape cassette of the present invention will be described with reference to FIGS. 3 to 14. In FIGS. 3-14, the same code | symbol is attached | subjected to the part corresponding to FIG. 1, FIG. 2, and the detailed description is abbreviate | omitted.

In Fig. 3, (2) and (3) represent the upper half and the lower half, respectively, and the upper half (2) and the lower half (3) are composed of synthetic resin, for example, ABS resin, and the front cover ( 8) A tape cassette is obtained by providing the slider 9 and the brake body 11 described later.

Here, the lower half part 3 is demonstrated based on FIG. 3 and FIG. The lower half portion 3 is composed of a frame portion including left and right side wall portions and a rear wall portion, except for a substantially rectangular flat plate portion on which the rail shaft insertion holes 5a and 5b are formed, and a front portion on which the front cover 8 is disposed. . In this case, the lower and lower side portions 3 corresponding to the slide movement range of the slider 9 are made thicker by the thickness of the slider 9 and the left and right side wall portions and the lower surface portion of the lower half portion 3 other than the slider movement range of the slider 9. Steps are formed on the left and right side wall portions and the lower surface portions of the left and right portions so as to prevent the step between the lower half portion 3 and the slider 9 when the slider 9 is placed on the lower half portion. The support wall 12 is formed by forming a jar inwardly of the front and rear side wall portions by the thickness of the arm portions 8a and 8b of the front cover 8, respectively. The front cover 8 is formed at the bottom of the rear portion side of the rear portion 8a, 8b of the arm 8a, 8b when the front cover 8 is rotated upward while forming a shaft hole for supporting the rotating shaft of the front cover 8, which will be described later. The rectangular operation piece insertion hole 13 is formed in the position which covers the support wall 12, ie, it is biased in the lower end of the front-side part of the support wall 12. As shown in FIG. Further, shielding walls 14a, 14b, and 14c are provided on the left and right sides and the rear side of the opening and closing portion 3a, respectively, so as to shield the opening and closing portion 3a and the inside of the cassette box body 1 from each other.

In the present embodiment, the engagement piece 15 having elasticity is provided at the left side of the shielding wall 14c on the rear side of the opening and closing portion 3a. In this case, as shown in detail in FIG. 4, the engagement piece 15 is bent upwardly at the tip side so that the inclined surface portion 15a is obliquely opposed to the cut portion of the front cover 8 described later. The plate portion 15b having elasticity parallel to the front-back direction and the protrusion 15c which is located in the middle of the front-back direction of the plate portion 15b and protrudes on the right side side is formed in a substantially T-shape as viewed in the vertical direction. The engagement piece 15 is preferably formed integrally with the lower half 3 so that the number of parts does not increase.

Further, parallel horizontal grooves 16a are formed in the front and rear directions at the upper end portions of the left and right side walls, respectively, and at the bottom of the horizontal grooves 16a, the rectangular slide movement guide grooves correspond to the slide movement range of the slider 9 ( 16b). In this case, the depths of the horizontal grooves 16a and the slide movement guide grooves 16b are made smaller than the thicknesses of the arm portions 8a and 8b of the front cover 8.

In addition, (17a) and (17b) are flange parts provided annularly around the pair of rail shaft insertion holes 5a and 5b. (18) is a rectangular spring storing part provided in parallel in the front-rear direction at intermediate positions between the rail shaft insertion holes (5a) and (5b), and (19) stands up near the front side of the spring storing part (18) One spring hanger is provided, and a tension coil spring for applying a force to the slider 9 to be described later is stored in the spring storing portion 18, and one end of the tension coil spring is caught by the spring hanger 19.

Next, the upper half 2 is demonstrated based on FIG. 3 and FIG. This upper half portion 2 is composed of a frame portion composed of a substantially rectangular flat plate portion on which the window 2a is disposed, similarly to the lower half portion 3, side walls on the left and right sides and a rear wall portion except the front portion on which the front cover 8 is disposed. do. In this case, the outer dimensions of the upper half 2 are approximately equal to the outer dimensions when the slider 9 is arranged in the lower half 3, and when assembled, the upper half 2, the lower half 3, and the slider 9 Do not create a step between the). 20 forms a terminal inwardly corresponding to the support wall 12 of the lower half 3 to the thickness of the arm portions 8a and 8b of the front cover 8, respectively. It is a support wall provided so that the shape of the butt | matching part of the support wall 20 and the support wall 12 of the lower half part 3 side shall mutually complement. 14d shows the shielding wall provided corresponding to the shielding wall 14c of the back part side of the opening-and-closing part 3a of the lower half part 3, and this upper half part 2 when the upper half part 2 and the lower half part 3 were combined. The shielding wall 14d on the side and the shielding wall 14c on the lower half 3 side abut together to shield the opening / closing portion 3a and the inside of the cassette box 1. (21a), (21b), (21c) and (21d) represent arcuate flange portions provided corresponding to the annular flange portions 17a and 17b of the lower half portion 3, respectively, and the upper half portion 2 Reel hub 4a wound around magnetic tape 6 by flange portions 21a, 21b and 21c, 21d and 21d and flange portions 17a and 17b on the lower half 3 side. And 4b are loosely fitted so that they can rotate.

In this case, the heights of the flange portions 21a, 21b, 21c, and 21d are made approximately equal to the thickness of the portion of the brake body 11, which will be described later, connected to this upper half portion 2, and the brake body ( 11) does not protrude from the flange portions 21a, 21b, 21c, and 21d so as not to adversely affect the magnetic tape 6 wound on the rails 4a and 4b. (22) is a U-shaped spring height information installed in correspondence with the spring hanger (19) of the lower half (3), and when the upper half (2) and the lower half (3) are combined, The spring hanger 19 is located in the opening, and one end of the tension coil spring 28 to be described later, which is caught by the spring hanger 19 at the end of the spring goose 22, is fixed. (23) is an anti-slip uneven portion formed on the rear surface portions of the left and right side wall portions, and (24) is a V-shaped supporting recess portion having a cross section formed in an approximately center portion of the left and right side wall portions, respectively. When loaded into the recording / playback apparatus, the support recesses 24 are fitted by the support clicks from both the left and right directions.

In addition, the brake body 11 is demonstrated here. A slide movement guide plate 11a which extends the brake body 11 to the inner bottom surface of the upper half portion 2, and an L-shaped arm 11b formed by hanging below both left and right ends of the slide movement guide plate 11a; And (11c). In this case, brake clicks 11d and 11e are provided on the rear side of the slide movement guide plate 11a in correspondence with the reel hubs 4a and 4b, respectively. In response to the brake clicks 11d and 11e, a ratchet is provided on the outer peripheral part of the upper half 2 side of the real hubs 4a and 4b.

Moreover, the spring hanger part 11f is attached to the center part of the slide movement guide plate 11a, and the operation pieces 11g and 11h are attached to the edge part of arm 11b and 11c, respectively. In this case, a spring 25 for applying a force to the brake body 11 is applied to the spring hook portion 11f so that the free end of the spring 25 presses the shielding wall 14d of the upper half portion 2. The brakes 11d and 11e are caught by the latches of the real hubs 4a and 4d by the pushing force on one side of the spring 25 so that the real hubs 4a and 4b can rotate. To be locked. Moreover, when the brake body 11 is arrange | positioned in the cassette box body 1, the edge of the operation piece 11g, 11h is supported by the support piece insertion hole 13 of the lower half part 3 through the support wall 12. When the front cover 8 is rotated upward, the projecting pieces 11g and 11h are projected to the outside of the front cover 8 so that the arm pieces 8a and 8b of the front cover 8 are extended. Pressed by the end portion, the brake body 11 slides forward in response to the pushing force to one side of the spring 25, and the brake clicks 11d and 11e are moved by the real hubs 4a and 4b. Apart from the ratchet, the real hubs 4a and 4b can be rotated.

In addition, the front cover 8 is demonstrated here. The front cover 8 is roughly " c " as a plate portion 8c for closing the front portion of the cassette box body 1 and arm portions 8a and 8b provided so as to face each other at the left and right ends of the plate portion 8c. It consists of a type. In this case, when the front cover 8 is rotated to the position in which the front cover is closed, the arm portions 8a and 8b of the front cover 8 cover the left and right support walls 12 of the lower half 3. When the front cover 8 is in the rotational position to close the front part of the cassette box 1, the slider 9 can be positioned below the arm parts 8a and 8b. Moreover, the rotating shaft 8d is provided in the mass center position inside this arm part 8a, 8b.

In this example, the "c" shaped cutout part 8e is formed in the lower end part of the board part 8c corresponding to the board part 15b of the engaging piece 15 of the lower half part 3, and this cut part (in the left-right direction) A cut portion 8f having a "c" shape is provided at a position that is symmetrical with respect to 8e).

In addition, the slider 9 is demonstrated based on FIG. 3 and FIG. A flat plate portion 9c that connects the slider 9 to the lower surface portion of the lower half portion 3, and a side plate portion that is positioned on both left and right sides of the flat plate portion 9c and connects to the left and right sidewall portions of the lower half portion 3 ( 9d) and (9e), they are formed in an approximately "c" shape when viewed from the front-back direction. (9f) and (9g) denote bent portions in which the upper end portions of the side plates 9d and 9e are bent into hooks, respectively, and the bent portions 9f and 9g indicate that the slider 9 has a cassette box ( When placed in 1), it is positioned in the horizontal groove 16a as shown in FIG.

Moreover, the projection part 26 which protrudes toward the cassette box body 1 side is provided in the predetermined position of the left side plate part 9d, 9e in correspondence with the slide movement guide groove 16b of the lower half part 3. As shown in FIG. As shown in Fig. 6, the cassette box body 1 side of the protrusion 26 is made into a smooth curved shape so that the contact angle with the slide movement guide groove 16b becomes an obtuse angle, and the top of the protrusion 26 and the slide Positioning in the left and right directions of the cassette box body 1 of the slider 9 by contact with the bottom portion of the movement guide groove 16b is performed, and the slide portion is moved up and down with the top and bottom portions of the top of the projection 26. The contact in the vertical direction of the cassette box body 1 of the slider 9 is performed by contact with the side surface portion of the guide groove 16b.

(9h) is a spring hanger piece provided corresponding to the spring storage portion (18) of the lower half (3), (27) is a tension coil spring for applying a force to the slider (9), the tension coil spring (27) One end is fastened to the spring hanger 19 of the lower half part 3, and the other end is fastened to this spring hanger piece 9h so that the slider 9 is forced forward to close the opening and closing part 3a.

In this embodiment, the engaging portion 9i is vertically provided at the front end of the flat plate portion 9c corresponding to the protrusion 15c of the engaging piece 15 of the lower half portion 3 in the left and right direction. In the direction corresponding to the cutout portion 8f on the right side of the front cover 8, the contact piece 9j is vertically provided at the front end of the flat plate portion 9c.

Others constitute the same as the tape cassette shown in FIG. 1 and FIG.

The operation of the tape cassette thus made will be described with reference to FIGS. 7 to 14. FIG.

First, when not in use, as shown in FIGS. 7 and 8, the front cover 8 closes the front part of the cassette box body 1 and the slider 9 is exerted by the tension coil spring 27. Is moved forward. At this time, the brake body 11 is exerted by the spring 25 to the rear, and the brake clicks 11d and 11e are engaged with the latches of the rail hubs 4a and 4b, and the rail hubs are engaged. (4a) and (4b) are locked so that they cannot rotate. Further, the rail shaft insertion holes 5a and 5b of the cassette box 1 and the rail shaft insertion corresponding holes 9a and 9b of the slider 9 become non-compliant and the cassette box 1 The opening / closing portion 3a of the lid) is closed by the slider 9, and dust is attached to the magnetic tape 6 through the rail shaft insertion holes 5a, 5b and the opening / closing portion 3a, or a finger or the like is attached to the magnetic tape ( The magnetic tape 6 can be satisfactorily sealed without touching 6). Further, the side plates 9d and 9e of the slider 9 come in contact with the lower ends of the arms 8a and 8b of the front cover 8 so that the front cover 8 can rotate even when the front cover 8 is about to rotate. It is locked so that the front cover 8 will not suddenly rotate when not in use. Accordingly, the front cover 8 suddenly rotates by a simple operation when not in use, so that the magnetic tape 6 is exposed to the front portion of the cassette box 1 so that a finger or the like does not touch the magnetic tape 6. have.

In this state, if the slider 9 suddenly slides backward to open the opening and closing portion 3a in response to the pushing force to one side of the tension coil spring 27, the slider 9 as shown in FIG. When the opening and closing portion 3a is opened approximately halfway, the engaging portion 9i of the slider 9 abuts against the protruding portion 15c of the engaging piece 15 so that the slider 9 slides backward from this slide moving position. It is restricted from movement. At the slide movement position of the slider 9, the side plates 9d and 9e of the slider 9 are arm portions 8a and 8b of the front cover 8, as shown in FIG. In contact with, the front cover 8 is locked so as not to rotate. Therefore, even when the slider 9 is suddenly moved to the rear by a simple operation when not in use, the slide movement of the slider 9 can be restricted when the opening / closing part 3a is slightly opened, and the front cover 8 suddenly rotates. The magnetic tape 6 can be sealed satisfactorily, so that it can lock so that it may be done.

Then, in use, it is loaded into the recording / reproducing apparatus, and the release pin of the recording / reproducing apparatus and the slide moving click of the slider are engaged with the engaging pieces 15 and 8 through the cutouts 8e and 8f of the front cover 8, respectively. It is pressed against the contact piece 9i. At this time, as shown in FIG. 11, the engagement piece 15 is bent upward so that the inclined surface portion 15a side of the engagement piece 15 gradually moves upward by the release pin through the cutting portion 8e. As a result, the projection 15c of the engaging piece 15 moves out of the moving range of the engaging portion 9i of the slider 9, and the slider 9 moves the contact piece 9j by clicking the slider. The slide is moved backwards through. In this case, the engaging portion 9i moves backward in accordance with the slide movement of the slider 9 to the rear side, but the projection 15c of the engaging piece 15 is outside the moving range of the engaging portion 9i. Since the engaging portion 9i does not touch the protruding portion 15c, the sliding movement of the slider 9 behind the slider 9 is not restricted.

In this way, the slider 9 is slid to the rear at a predetermined position, so that the side plates 9d and 9e of the slider 9 are arm portions 8a of the front cover 8, as shown in FIG. The front cover 8 can be rotated to open the front part, and at the same time, the opening / closing part 3a, the positioning holes 10a, 10b and the rail shaft insertion hole 5a, 5b. ) Opens. In this state, the front cover 8 is rotated upward to open the front part by the cover rotating member of the recording and reproducing apparatus, so as to be in the state shown in FIG. 13 and FIG.

In this case, when the front cover 8 rotates upward, the operating pieces 11g and 11h of the brake body 11 are pressed forward by the lower ends of the arm portions 8a and 8b, and the brake body ( 11) slides forward in response to the pushing force on one side of the spring 25. At this time, the engagement between the brake clicks 11d, 11e of the brake body 11 and the ratchet of the real hubs 4a, 4b is released, and the real hubs 4a, 4b are rotated. Will be.

In this state, the positioning pins and the rails are inserted into the positioning holes 10a, 10b, and the reel shaft insertion holes 5a, 5b, respectively, and at the same time, the magnet is placed on the front surface of the cassette box 1. The tape 6 is exposed, a guide system is inserted into the opening / closing portion 3a, the magnetic tape 6 is pulled out and loaded by the guide system, and predetermined recording (or reproduction) is performed.

As described above, the operation opposite to the above-described operation is performed when the operation is not in use, as opposed to when the operation is in use.

As described above, according to the tape cassette of the present example, the front cover 8 is rotatably installed on the cassette box 1 having the opening and closing portion 3a at a predetermined position, and the slider on the cassette box 1 is provided. (9) to be slidably moved, opening and closing the opening and closing portion (3a) by the front cover (8) and the slider (9), and by the slider (9) to lock the rotation of the front cover (8). In the tape cassette, the engaging piece 15 is provided in the vicinity of the opening and closing portion 3a of the cassette box 1, and the engaging part 9i is engaged with the slider 9 in relation to the engaging piece 15. The sliding movement of the slider 9 with respect to the cassette box 1 is regulated by engaging the engaging piece 15 with the engaging portion 9i. Even if the front cover 8 is not rotated to open the front part by the operation There is a benefit to this.

Incidentally, in the above-described embodiment, the case where one engagement piece 15 is provided is described. However, even when the engagement piece is provided at a position symmetrically with respect to the engagement piece 15, It will be readily understood that the same effect can be obtained.

15 to 17 show another embodiment of the tape cassette of the present invention. In FIGS. 15-17, the same code | symbol is attached | subjected to the part corresponding to FIGS. 3-14, and the detailed description is abbreviate | omitted.

In this example, as shown in FIG. 15, a plate portion 28b having an inclined surface portion 28a on the lower surface of the tip portion, and a slider 9 which is positioned at an intermediate position in the front-rear direction of the plate portion 28b, and whose lower portion is described later. The engagement piece 28 is formed in a substantially T-shape as viewed from the left and right directions by the lock click 28c fitted to the lock hole of ().

In addition, the front end of the slider 9 is formed in a "c" shape corresponding to the inclined surface portion 28a of the engaging piece 28 when the slider 9 is slid forward to close the opening and closing portion 3a. In response to the lock click 28c of the engaging piece 28 when the slider 9 is slid forward to form the unlocking cutout portion 9k and close the opening / closing portion 3a, the slide 9 A rectangular lock hole 9l is formed. The other part is comprised similarly to the tape cassette shown to FIG. 3 thru | or FIG. 14 mentioned above.

According to this structure, the arm part 8a, 8b of the front cover 8, and the slider 9 in the state in which the front cover 8 closed the front part and the slider 9 closed the opening-and-closing part 3a at the time of nonuse are used. The side plate portions 9d and 9e of () are abutted and locked so that the front cover 8 can be rotated by the slider 9. In this state, as shown in FIG. 16, the engagement piece 28 fits the lock click 28c into the lock hole 9l of the slider 9 so that the slider 9 slides backward. Locked to be unable to move. Accordingly, even when the slider 9 is suddenly moved to open the opening / closing portion 3a by a simple operation when not in use, or the front cover 8 is suddenly rotated to open the front portion, the front cover 8 is moved by the slider 9. At the same time, the sliding piece of the slider 9 can be locked by the engagement piece 28, and the magnetic tape 6 can be satisfactorily sealed when not in use.

In addition, when the release pin of the recording / reproducing apparatus contacts the inclined surface portion 28a of the engaging piece 28 in use, the engaging piece 28 is bent upwards as shown in FIG. The lock click 28c of the fitting piece 28 and the lock hole 9l of the slider 9 are peeled off, and the slider 9 can slide back to open the opening / closing portion 3a.

As described above, in the tape cassette of the present example, it will be readily understood that the same effects as those of the tape cassette shown in FIGS. 3 to 14 can be obtained.

Incidentally, the present invention is not limited to the above-described embodiments, and of course, various other configurations can be taken without departing from the gist of the present invention. According to the tape cassette of the present invention, the front cover is rotatably installed on the cassette box having the opening and closing portion at a predetermined position, and the slider is installed on the cassette box so that the slider can be moved. In a tape cassette in which the rotation of the front cover can be locked by the slider, a fastening piece is provided near the opening and closing portion of the cassette box, and a fastening part is provided on the slider in relation to the fastening piece. Since the slide movement of the slider with respect to the cassette box is regulated by the engagement between the side and this engaging portion, it is possible to obtain that the front cover is not rotated to open the front part by simple operation when not in use due to the simple configuration. There is a profit.

Claims (1)

The front cover 8 is installed on the cassette box 1 having the opening and closing portion 3a at a predetermined position so as to rotate, and the slider 9 is installed on the cassette box 1 so as to be slidable. In the tape cassette which opens and closes the opening-closing part 3a by the said front cover 8 and the said slider 9, and locks rotation of the said front cover 8 by the said slider 9, The said The engaging pieces 15 and 28 are provided in the vicinity of the opening and closing portion 3a of the cassette box 1, and the engaging portions 9i are connected to the slider 9 in relation to the engaging pieces 15 and 28. ), And the sliding movement of the slider 9 with respect to the cassette box 1 is regulated by engaging the engaging pieces 15 and 28 with the engaging portions 9i. Tape cassette to make.

Images