JPS60175269A - Tape cassette - Google Patents

Abstract

PURPOSE:To prevent the misinsertion of a tape cassette by forming the hollow parts at both sides of a casing so that the tape cassette can reach the most inner side when it is inserted from the front side and that a guide member attached to a cassette holder prevents the insertion of the tape cassette when it is inserted from the back side. CONSTITUTION:Hollow parts 17 and 18 as well as 19 and 20 are formed at both sides 7a of an upper surface 7 and both sides 8a of a lower surface 8 respectively of a casing 1. For instance, the depth of the part 17 occupies the position where a plane approximately equal to the upper end face 5a of both side surfaces 5 of a cover 4. While the width of the part 17 is slightly larger than the plate thickness of the surface 5. The parts 18-20 are also formed in the same way as the part 17. When a tape cassette is inserted from a back side 11, the contact parts 22c and 23c of guide members 22 and 23 hit the back side 11 of the casing 1 to prevent the further insertion of the tape cassette since the parts 17 and 18 are not opened toward the face 11.

Description

[Detailed description of the invention] [Technical field of invention] This invention has a lid that is rotatable in one direction.

This invention relates to a tape cassette that can be used on both sides.

[Prior art]

Conventionally, a tape cassette of this type as shown in FIG. 1 has been considered. In fig.

(υ is the casing, (2) is the front 1 of the casing (1)
11T The opening provided in (3), (4) is a lid for opening and closing this, and the lid (4) is formed in a U-shape with both sides (5). It is rotatable in both directions around a rotation center (6) provided on the surface (5). (7) is the top surface of the casing (1), and (8) is the bottom surface of the casing (1).

Both surfaces are formed with almost flat images. [
9) is the capstan insertion hole into which the capstan shaft attached to the tape recorder is inserted, and Q0 is the reel insertion hole.

The tape cassette thus formed is inserted into a cassette holder of a tape recorder in the direction A in the figure. When this insertion is completed, the tape cassette is first lowered together with the cassette holder in the direction B in the figure.
The reel shaft has a capstan insertion hole (9) and a reel insertion hole C.
I+ml is inserted.

In addition, the lid opening member provided on the tape recorder is
4), the lid body (4) is opened.

When the descent is finished in this way, the front opening (2)
The head and pinch roller enter the magnetic tape and come into contact with the magnetic tape, resulting in a playing state.

However, the upper tape cassette is a casing (1).
Both the upper surface (7) and the lower surface (8) are formed almost flat, and the front opening (2) is also closed by the lid body (4) which has a nearly flat surface, so that the front and back of the top and bottom are They look very similar and may be inserted into a tape recorder in the wrong direction. In other words, there is a risk that the tape recorder may be inserted into the tape recorder from the rear surface σ of the casing (1).

In such a case, the capstan shaft may not be inserted into the capstan insertion hole (9) during the first lowering operation of the tape cassette, and may interfere with the top surface (7) or bottom surface (8) of the casing (1). 1. Howl.

Such interference may disrupt the precision of the capstan shaft, which is manufactured with high precision, such as verticality. Also,
There was also a risk that the casing (1) would interfere with the capstan shaft and be damaged on its surface.

[Summary of the invention]

This invention was made in order to eliminate the drawbacks of the conventional ones as described above, and includes a recess that engages with a guide member provided on both sides of the casing along the insertion direction into a tape recorder. When inserting the tape cassette from the front, the tape cassette reaches the innermost part, but when inserting it from the back, the insertion operation is blocked halfway, which eliminates problems caused by incorrect insertion. The purpose is

[Embodiment of the Invention] - An embodiment of the invention will be described below with reference to the drawings. Second
In Figures to Figures 8, (υ is the casing.

(2) is the opening provided in the front (3) of the casing (υ).

(4) is a lid body for opening and closing this, and this lid body (4) is formed into a U-shape with both sides (6). (6) is the center of rotation consisting of the bottles erected on both sides of the lid (5).

This becomes rotatable by engaging with the hole 0 formed in the casing (1). /f) is a leaf spring attached to the upper side OQ of the casing (1)
Since the lower side OQ and the lower side OQ are in a position protruding in the entry direction in FIG. 4 from both front sides p2H, the lid body (4) is in a state where it cannot be freely rotated. αη, OFj are o
n, cA are the recesses formed on both sides (8a) of the lower surface (8) of the casing (1). They are located on substantially the same plane, and the width of the recess a is slightly wider than the thickness of both side surfaces (5) of the lid, as shown in FIG. Four parts (g), +1*, (
The same applies to the concave portion Qη.

Figures 4 and 5 show the tape cassette inserted into the chief recorder's cassette holder 4 in direction A in the figure. A guide member fixed to the
(22a) and (jJll) are the sliding parts of this, (22
b).

(28b) is an engaging part, (22c) and (28c) are abutting parts, and the sliding parts (22a) and (21a) are in smooth contact with the upper surface (7) of the casing (1), and the engaging part (
22b)', (28b) are engaged with the recesses α force and (c), respectively. (C) is a leaf spring provided on the F frame (21b) of the cassette holder 140, which urges the tape cassette supported inside the cassette holder 1211 upward and guides the second surface (7) of the casing. It is pressed against the sliding parts (22a) and (28a) of members 4 and 2).

(a) is the main body frame of the tape recorder, (a) is the positioning bin installed upright on it, and the plow is the open-lid bin.

Next, we will explain the operation of this embodiment in Figures 2 and 8.
The figure shows the tape cassette in a preserved state, with the lid (4
) are pressed toward the casing C1 by leaf springs (1, 1), and the structure is such that the operator's fingers cannot easily open the 1ζ lid.

Figures 4 to 6 show the tape cassette being inserted into the cassette holder ev in direction A in the figure and reaching the innermost part. The cassette is positioned vertically by the moving parts (22a) and (28a) of the guide members (c) and (c) and the leaf spring, and is placed in the cassette holder. υ (primarily the engaging portions (22b) of the guide members (c) and (e)
), (28b) are the upper end surfaces (6a
), the insertion is proceeded in a state where it is almost in contact with the engaging part (22
b).

(28b) slides inside the recess αη, (7) to form a guide member.

The contact parts (22c) and (28c) of (E) are the four parts α7
) and (c), this insertion is completed by contacting the ends (17a) and (18a) of (c). Next, when the cassette holder eυ is lowered in the direction B in the figure, the 1 positioning pin (E) is inserted into the positioning hole (C) of the casing (1), and the tape cassette is positioned. A) pushes the lid (4) in the previous direction, that is, in the A direction, and the lid (4) becomes in a state where the rotation prevention effect by the front side m and the front lower side aQ of the casing (1) is released. .

When the cassette boulder Jυ further descends, the open lid bin (a) opens the lid body (4).

Next, when the performance ends, the cassette holder 3υ rises, but since the plate spring is not in the operating position for closing the lid (4), it rises with the lid open. When the cassette holder (2v) reaches its maximum position, the tape cassette is removed. This operation is shown in FIG. (G) engaging portion (22b),
(28b) slides along the recesses αη, (g). Eventually, the engaging portions (22b) and (28b) are connected to the lid (4).
and rotate it in the closing direction. As shown in Figure 4, the depth of the four parts αη, (G) is on both sides of the lid body (5).
A plane position that is almost the same as the height of the upper end surface (5a) of: i H
Because of this.

When the tape cassette is removed from the cassette holder 3v, the lid (4) is completely closed.

The above operation explanation is based on inserting the tape cassette upside down.
The same thing happens when you take it out. That is, the fourth part (A) engages with the engagement part (22b) of the guide member (1), and the recess α engages with the engagement part (28b) of the guide member (E), so that insertion and removal are possible without any trouble. An action is taken.

Figure 7 shows the tape cassette being inserted from the rear direction Qυ, and the tape cassette is inserted into the guide member (
a), the sliding parts (22a), (28a) and the leaf spring (c) are positioned in the vertical direction i? 7.The cassette is inserted into the cassette holder 1), but the recess a'tt,
(Since 119 is not open in the 0υ direction of the rear surface of the casing (1), the guide member (c)
c) , (28c) is the rear direction Qυ of the casing (1)
1 cannot be inserted anymore.

In this manner, when the tape cassette cannot reach the innermost part of the cassette holder υ, the tape cassette is blocked by the Oi 1 side frame 4 of the tape recorder and cannot be lowered. Therefore, it is possible to avoid the problem of the capstan shaft interfering with the tape cassette.

In the above embodiment, the contact portion (22c) * (28c) of the guide member C, (e) is the end portion (17a) of the recessed portion αη, Q@.

(17b), the insertion position of the tape cassette was set to 1d, but the casing (υ
(on the extended side surface of) may be brought into contact with a desired location of the cassette holder Qυ to serve as the arrival position of the -C tape cassette.

FIG. 8 shows another embodiment according to the present invention.
117), (119 is the upper surface (7) of the casing (1)
) is the first recess provided in the F surface (8) of the casing (1), 010. (
A) is 1' on the top surface of the casing (1)! The cut out second recess, facing (2), is a second recess provided in the lower surface of the casing (1), and the first recess Qη, (g).

0! ), (e) the length el of the second recess OI), (a),
(to) and (goods) are formed longer than the length C2. That is, when inserting the tape cassette into the cassette holder rAv from the front surface (3), it reaches the innermost part without any problem, but when inserting from the rear surface aη of the tape cassette, the guide parts (2), ( e) engaging portion (22b),
(28b) is the second recess OI).

However, because the length C2 of this second recess C (D, C1e is shorter than the length el of the first four parts U'l), it is not possible to reach the innermost part of insertion. . That is, the contact portion (22c) of the guide portion (e),
(28c) is the second recess 0υ.

It hits the ends (81a) and (82a) of the zero stroke.

Therefore, as in the above-described embodiment, the cassette holder cannot be lowered, and the effect of preventing erroneous insertion can be obtained. Also.

Since the stop position when the tape cassette is incorrectly inserted from the rear surface 0υ is closer to the innermost part than in the actual example, the tape cassette can be supported by the guide member over a long range. Therefore, the tape cassette position is stable and it is difficult for the operator to forcefully insert the tape cassette by changing its negative degree, so that a highly reliable operation can be obtained.

〔Effect of the invention〕

As described above, according to the present invention, four parts are provided on both sides of the casing along the insertion direction into the tape recorder, and when the tape cassette is inserted from the front, it reaches the innermost part, but the rear part When the tape cassette is pushed in further, the guide member attached to the cassette holder is configured to prevent this insertion, which has the effect of providing a highly reliable tape cassette that will not be accidentally inserted.

[Brief explanation of drawings]

Figure 1 is a perspective view showing a conventional tape cassette. 2 is a perspective view showing a tape cassette according to an embodiment of the present invention, FIG. 8 is a plan view showing the main parts of FIG. 2, and FIG. 4 is a sectional view taken along IT-IV in FIG. 4 is a view taken in the direction of arrow V in FIG. 4, FIGS. 6 and 7 are sectional views corresponding to FIG. 4 showing the operation of a tape cassette according to an embodiment of the present invention, and FIG. 8 is a view showing another example of the tape cassette according to the present invention. It is a perspective view showing an example. In the figure, (1)...Casing・”-DFJ
Mouth part・(3)°゛°°Casing surface, (4)・°°Lid body, (7a), (8a)...Both sides of casing, aυ...Back surface of casing, Qη. 0 frame, Ol, 4...Concave part (1st 4th part), 01), <Gong, Trowel, (Foundation)...2nd 4th part 1 In the figures, the same reference numerals indicate the same or equivalent parts. Agent Masuo Ohbi Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7 Figure 81 S1 2

Claims (2)

[Claims] (1) A casing with 13140 parts formed on the front surface;
In a tape cassette that has a lid that opens and closes the opening in both directions and is used on two sides, along the direction in which the tape cassette is inserted into a tape recorder. 1. A tape cassette characterized in that recesses are formed on both sides of the casing and are open toward the front of the casing and closed toward the rear. (2) In a tape cassette that is used on both sides and has a casing with an opening formed on the front surface and a lid that opens and closes the opening in both directions, along the direction in which the tape cassette is inserted into a tape recorder. A first recess is formed on both sides of the casing and is open toward the front of the casing but closed toward the rear, and a first recess is open toward the rear of the casing but extends toward the front. 2. A tape cassette, wherein the tape cassette has a blank second and fourth portion, and the first concave portion is longer than the second and fourth portions in the insertion direction of the casing.