JPS60224174A - Tape cassette - Google Patents

Abstract

PURPOSE:To close a lid body without pulling out a cassette, by constituting the cassette in such a way that, when the pushing member of a tape recorder enters into the inserting hole of a casing, the pushing member is engaged with the engaging projected part of a slider and the lid body is set turnable. CONSTITUTION:When a tape cassette moves from the 2nd position which is the recording and reproducing position to the 1st position which is the inserting and pulling out position, a lid body is closed by the energizing force in the tape cassette. When the reproducing operation is terminated, the tape cassette rises from the 2nd position to the 1st position, but, since the supporting section 21 of the lid body 4 is installed to a slider 20 sliding inside a casing 1 and, at the same time, an engaging projected part 20b which is engaged with a pushing member 7 is provided, contact between the pushing member 7 and engaging projected part 20b is released and the lid body 4 turns around the supporting section 21 counterclockwise and set to the closed condition when the tape cassette rises to the 1st position.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a tape cassette that has a lid that can be rotated in both directions and can be used on both sides.

[Conventional technology]

Tape cassettes that perform high-density recording and playback, such as video and digital audio, are equipped with a lid that opens and closes in the forward direction. The system shown in Figure 8 C was considered. In the figure, Il+ is the casing, +2
1. The opening window portion (4) formed in the front tel of the Vi casing 11) is a lid body that opens and closes.
) is formed in a U-shape with both sides (5).
Pivot supports (6) are provided on both sides (5).

It engages with the triangular hole (7) formed in the pivot tel tri casing (1), and then the spring (8)
) The lid body (4) is pressed in the direction of opening the opening window (2). Upper side of casing +11 [1
0) and the lower side (l) are in a positional relationship that protrudes forward from both front side walls (9) that the lid body (4) comes into contact with, that is, in the direction A in Fig. 2. The lid is structured so that it cannot be easily opened with the operator's fingers when it is not attached to a tape recorder.

Fig. 8 shows the state in which the tape recorder is inserted into a conventional tape recorder. 02 is the main body frame of the tape recorder, and the cassette holder is supported so as to be movable up and down on this main body frame. 9 is an insertion hole formed in the casing 11) of the tape cassette, and Qη is an insertion hole formed in the casing 11) of the tape cassette. erected on the main body frame H,
The push-out member positioned to be inserted into the insertion hole Q is a lid-opening member erected on the main body frame Q.

Next, the operation will be explained. The solid line in Figure 8 is the upper limit position,
In other words, the tape cassette is inserted into the cassette holder C1l in the direction A in the figure, which is waiting at the first position. Then, the side plate 4 of the casing +11 comes into contact with a part of the cassette holder, and the insertion is stopped. When the insertion in the direction A is completed in this way, the cassette holder α'4 moves down in the direction B in the figure while holding the tape cassette.

In this downward movement process, the push-out member 0η is first inserted into the insertion hole of the tape cassette, and both sides of the lid body t41 (
5), and pushes the lid 141t forward, that is, in the direction shown in the figure, by about 1 inch.

When the lid (4) is pushed forward in this way, the rotation restriction effect caused by the upper and lower sides of the casing +11 is released, and the lid (4) becomes free to rotate. When the tape cassette further descends, the lid opening member (+#
comes into contact with the lid (pull) and rotates the lid (4) clockwise in the figure.The lid (4) is biased in the gauging (1) direction by a leaf spring (8), Lid body (4) is #':1
Until the tape cassette rotates by 45 degrees, it is attached in the direction of closing the lid, and when the tape cassette reaches the lower limit position, that is, the 8th position, as shown by the dashed line in FIG.
It becomes a rotating corpse-shaped cram school.

When the tape cassette reaches the gfI11 position, a magnetic head or the like is inserted through the opening window (2), and recording or reproducing operation is performed. When this recording or reproducing operation is completed, the tape cassette is inserted in the direction C in Fig. 8. It rises and returns to the first position. However, the lid T41 rt plate is held in the open position by the spring (8), and even when it reaches the first position, it still looks like it is opened!
At-keep.

Next, an operation is performed to pull out the tape cassette 'kd in the middle direction. In the middle of this operation, the inner material circle from the upper part comes into contact with the lid body (4), and by the above-mentioned extraction operation, the inner material circle from the upper part comes into contact with the lid body (4).
) to the left in the figure.

Due to the action of the spring (8) that suppresses the lid (4),
The lid body (4) is biased in the lid opening direction until a predetermined rotation angle, but when it is rotated further, it is biased in the lid closing direction, and the tape cassette is removed from the cassette holder 111). Since the conventional tape cassette is configured as described above, the lid is still open even when the tape cassette is moved from the second position to the second position. The lid will not close unless you hold it in this position and allow the tape cassette to be removed. therefore,
When inserting and extracting the tape cassette 1 from the lateral direction or from the reverse IOJ, it is difficult to close the lid, and the insertion and extraction direction of the tape cassette is limited. 2 [Summary of the Invention] ] This invention was made in order to eliminate the above-mentioned drawbacks of the conventional ones.When the tape cassette moves from the second position, which is the recording/playback position, to the first position, which is the insertion/extraction position, To provide a tape cassette whose lid (4) can be closed by the biasing force inside the tape cassette.

Hereinafter, an example of this invention will be explained with reference to the figures. (clarification/) o In Figures 4 to 10, 11J is the coushing, 12) is the opening window formed on the front surface of the gauging +l+, (4) is the gunwale that can be fully opened and closed, and (4a) is the Support parts (4b) provided on both sides of this lid (4'')
ri A pin installed on this, 4 is the above casing Il +
The above pin (4) is provided on the side & inside of the casing.
b) is inserted, and the lid body (4) is rotatable around this pivot support gl. 1!2 is the locking part (20a) related to the slider and gauging +1
A biasing member consisting of a tension coil spring stretched between locking pins (la) erected inside 1;
Due to the action, slider 4 is pulled in the direction B in the figure, and the intangible body (4) is attached to both front side walls (9) of the casing (1).
is under pressure. The square hole is the rectangular insertion hole formed on the left and right sides of the gauging (1), and when the lid is closed as shown in FIGS. The joint @ (2ob) is in a state of protruding into the inside of the insertion hole 94. O is a take-up reel, (Foundation) is a supply H reel, and A is a magnetic tape stretched between these reels. @ is a guide pin,
(b) is a guide roller. (c) is the light source insertion hole into which the light source provided on the tape recorder is inserted, (t8a
) are these cylindrical wall parts, (28b) are this cylindrical wall part (8
The through hole formed in the side plate H of the casing fi+ is inserted into the through hole (
ocgoa) located in a position opposite to 19a)
ri When the slider wing moves a predetermined distance in the direction A in the figure through the through hole formed in the slider 4, the through hole (P1
8b).

(t9a) and the positional relationship is on a straight line.

Figure 5 shows the tape cassette inserted into a tape recorder. In the figure, 021 is the main frame of the tape recorder, and α field is this main frame
A cassette holder 4, aa supported so as to be vertically movable at 4 is provided in this cassette holder O1,
A lower guide member and a lower S guide member for positioning the tape cassette in the vertical direction when inserting the tape cassette, and a push-out member that is installed vertically on the main body frame a and is positioned to engage with the end of the insertion hole formed in the casing 11. , (l is an opening member that is erected on the main body frame 4VC.

Next, the operation will be explained. Figures 4 and 5 show the tape force set with the lid closed, but the slider (
7) is the biasing member - the rear direction of the sliding casing 111;
That is, the lid body (4), which is biased in the direction B in the figure, is also pulled in the direction B in the figure, and the lid body (4), which is pivotally supported by the shaft portion of the slider, is pulled in the direction B in the figure.・Similar to the explanation of the conventional tape cassette, the upper side (101) and lower side (1) of the casing are pressed against both front walls (91) of the casing. Therefore, the lid is closed with the lid +41ri prevented from freely rotating.

FIG. 5 shows a state in which the tape force setting If is inserted from side A in the figure into the cassette holder DI waiting at the upper limit position of the tape recorder, that is, the first position9, and the tape cassette is inserted into the upper guide member. - and the lower guide member), and the side plate (II) of the gauging 111 comes into contact with a part of the cassette holder a, and the above insertion is stopped. When the insertion is finished,
As shown in FIG. 6, the cassette holder σ field descends in the direction B in the figure with the cassette holder σ field held at 7'-k. During this lowering process, the push-out member 0η is first inserted into the insertion hole ul.As shown in Fig. 1, the insertion hole 0fjK is in a state where the slider-〇 engagement protrusion (20b) is protruding. , the above-mentioned push-out member has this engaging protrusion (20
b) and pushes out the slider 4 and the lid (4) approximately 1aI forward as shown in Fig. 6.◎When the lid (4) is pushed forward in this way, the lid In (4), the rotation restricting action by the upper side - and the lower side (11) of the casing +11 is released, and the state becomes free to rotate. When the tape cassette further descends, the opening lid member comes into contact with the lid (4) and rotates the lid (47) clockwise in the figure.As shown in FIG. When the angle is rotated, the lid body (4)
The back side (4C) of the casing (!) is in contact with the top side (lO) of the casing (!), and while this back side m (4c) and the top side (lO) are sliding, the lid body (4) is rotated by the downward driving force of the tape cassette. Continue wJ. At this time, the slider moves forward against the tension of the biasing member. When the tape cassette further descends, the support part of the lid (4) moves as shown in Figure 8. (4a) is the notch S provided in the casing 111
and comes into contact with this notch W-40 abutting part (Ha). Then, while the supporting part (4a) and the contact part (29) are sliding, the lid (4) continues to rotate due to the downward driving force of the tape cassette, and the tape cassette is at the lower limit position, that is, the lower limit position. When the 2nd position is reached, the lid body (4) is rotated by approximately 90 degrees as shown in Figure 9. 〇Figure 10 shows the tape at the 2nd position, that is, the position shown in Figure 9. This position shows the load acting on the lid (4) of the cassette, where Fl is the load received from the biasing member (2), F2
is the load received from the contact part (119a) of the notch, F8
is the load received from the opening member -, and when these eight loads are approximately 9, the lid (41) is stopped ◎ In other words, the lid (4) receives the load from the second position and the lid opens (41). I Enoki?) 1 is missing.

When the tape cassette reaches the eighth position in this way, a magnetic head or the like is inserted through the opening window (2), and the recording or reproduction mode begins. Also, when the tape cassette is moved from the first position to the second position, the light source provided on the main body frame of the tape recorder is inserted into the light source insertion hole (c). (gsb) and through hole (19a
) is shielded by slider #4, but when the tape cassette reaches the second position and the lid is opened, the slider (7) moves and the through hole (gsb)
The through hole (GOC) and the through hole (19) are lined up in a straight line. Therefore, the optical path of the light source inserted into the light source insertion hole (C) can be detected from outside the tape cassette without being obstructed, and the magnetic tape ( By distinguishing between the transparent tape bonded to both ends of c) and the magnetic tape μs, it is possible to detect the start or end of the magnetic tape.

When the recording or playback operation is finished, the cassette holder
is from the second position to the first position while holding the tape cassette.
position, but the operations described above in FIGS. 5 through 9 will be reversed. First, as the tape cassette rises, as shown in FIG. rotates to the left in the figure.

Next, as shown in FIG.
The rotation progresses. As shown in FIG. 6, when the contact between the opening member (I barrel and the lid body (4) is removed and the tape cassette further rises and reaches the first position as shown in FIG. 6), the push-out member (7) and the retaining protrusion (sob) are released, and the lid body (4) returns to its closed state.

〔Effect of the invention〕

As described above, according to the present invention, the shaft support of the lid body is provided on the slider that slides inside the casing, and when the push-out member of the tape recorder is inserted from the insertion hole of the casing, the push-out member moves the υ cover. The slider has a retaining protrusion that pushes the entire body forward, and when the tape cassette moves from the second position with poor recording/playback conditions to the first position with insertion/extraction condition, it is pushed out by the biasing force inside the tape cassette. The lid body can be closed, inserting the tape cassette,
It is possible to obtain a tape cassette v that has a wide range of applications and is not limited in the way it can be taken out.

[Brief explanation of drawings]

Fig. 1 is a perspective view showing a conventional tape cassette, Fig. 2 is a plan view of Fig. 1 including a cross section of the main part of Fig. 1, and Fig. 8 is a
FIG. 4 is a plan view including a cross section of a main part showing an embodiment of the tape cassette according to the present invention, FIG. 5 is a V-vvfr side view of FIG. 4, and FIG. A sectional view corresponding to FIG. 5 showing the operation of the tape cassette according to the invention, FIGS. 7 and 8 are detailed sectional views of main parts showing the operation of the tape cassette according to the invention, and FIG. 9 shows an operation of the tape cassette according to the invention. Fig. 5 (target cross-sectional view, Fig. 1θ is Fig. 9)
It is a schematic cross-sectional view showing the load in the figure. In the figure, (1) is the casing, (2) is the opening window, (4) is the lid, α is the insertion hole, Oη is the extrusion member, 4 is the slider, (sob) is the retaining protrusion, @Phantom is the shaft support, Foundation is the biasing member, and Ya is the magnetic tape. In addition, in the figures, the same reference numerals indicate the same or equivalent parts◎ Agent Masuo OdaiFigure 1Figure 2A KujiFigure 3Figure 5Figure 6Figure 7Figure 8

Claims (1)

[Claims] The casing includes a casing having an opening window formed on the front surface to store a magnetic tape and expose the magnetic surface of the magnetic tape, and a lid body for opening and closing the opening window is pivotably supported in a thickness direction of the casing. The tape cassette includes a slider provided on both sides of the casing so as to be swingable in the front-rear direction of the casing, a pivot support formed on the slider that pivotally supports the lid, and between the slider and the gauging. The casing includes a biasing member that is stretched and biases the lid in a direction to close the lid, and an insertion hole formed in the casing into which a push-out member provided on the tape recorder is inserted, and the push-out member is The tape cassette is characterized in that the slider is formed with a retaining protrusion that engages with the push-out member and moves the slider toward the front of the casing when inserted into the insertion hole.