KR900007324Y1 - Cassette supporting apparatus of tape recorder - Google Patents

Abstract

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Description

Cassette Supports for Tape Recorders

1 is a plan view of the tape recorder of the present invention.

2 is a plan view of the main parts of the tape recorder in the cassette loaded state.

3 is a plan view of the main portion of the tape recorder in the cassette unloaded state.

4 is a plan view in the cassette unloaded state.

5 is a plan view in a recording or playback state.

6 and 7 are plan views taken out of the tape cassette.

8 is a cross-sectional view taken along line B-B in FIG.

9 is a cross-sectional view taken along line E-E of FIG.

FIG. 10 is a view from the line C-C in FIG.

FIG. 11 is a view from the F-F line of FIG. 5. FIG.

FIG. 12 is a view from the line G-G in FIG. 7. FIG.

FIG. 13 is a cross-sectional view taken along line D-D of FIG.

14 is a plan view of main parts of another embodiment of the present invention.

* Explanation of symbols for main parts of the drawings

1: Main board 2: Real axis

3a, 3b: Capstan side 4: Motor

5: Magnetic head 6a, 6b: Pinch roller

8: rotating plate 9: cassette holder

10: bending section 11: cassette insert

12: tape cassette 13: spring receiving member

15: ejecting member 16: contact portion

17: engagement protrusion 18: bulge

19: protrusion 20: eject spring

21, 21a: retaining member 22: contact piece

22a: spring 23: fixed stop

24: locking portion 25: eject operation member

26: engaging portion 27: connecting rod

28: return spring 29: operating force transmission member

30: return spring 31: hydraulic part

33: engagement piece 34: interlocking member

36: groove 37: connection pin

38: hydraulic pressure piece 39, 40: engagement protrusion

41: cassette press spring 42: contact piece

43: stop 51: piece

52, 53: protrusion 54: main part

The present invention relates to a cassette support apparatus of a tape recorder in which a cassette cassette is prevented from being detached before the cassette holder is supported at the stop position when the cassette is taken out.

4 to 13 are schematic configuration diagrams of a cassette type tape recorder already known and filed as a special element 59-15676.

That is, FIG. 4 is a plan view in a stationary state, and a pair of rail shafts 2a and 2b, cap stand shafts 3a and 3b, and a motor 4 for rotating them are provided on the upper surface side of the main board 1. A tape drive mechanism is included.

The motor 4 simultaneously rotates both capstan shafts 3a and 3b in the respective tape sending directions, and alternatively rotates the pair of rail shafts 2a and 2b in the winding directions, respectively.

On the upper surface of the main board 1, magnetic recording heads 5 for recording and reproduction and pinch rollers 6a and 6b corresponding to the cap stand shafts 3a and 3b are mounted. Moreover, on the upper surface of the main board 1, the rotating plate 8 which can be rotated in an up-down direction (direction orthogonal to the paper surface of FIG. 4) is formed in the upper surface as a support point in FIG. The cassette holder 9 is rotatably supported in the rotational end in the vertical direction (the direction orthogonal to the ground in Fig. 4) (see Figs. 8 and 9).

Moreover, as shown in FIG. 13, the rotating plate 8 and the cassette holder 9 insert the upper bent part 9a of the cassette holder 9 into the groove 8a of the rotating plate 8 below. In addition, the annular bent portion 9b of the cassette holder 9 is engaged by being connected to the upper side of the tip portion 8b of the rotary plate 8.

The amount of rotation of the rotating plate 8 in the upward direction is regulated by the bent piece 10 formed on the upper side wall of the main board 1, and the rotating plate 8 and the cassette holder ( 9) is supported substantially parallel with the main board 1 in the upwardly moved position.

The cassette holder 9 is provided with a cassette inserting outlet 11 at the lower end side (left end side in Fig. 8) in Fig. 4, and the cassette holder 9 is in the state of Fig. 4 in the inserting position. The tape cassette 12 can be inserted through the insertion opening 11.

Then, in the state where the tape cassette 12 is inserted into the cassette holder 9, as shown in FIG. 9, the rotating plate 8 rotates downward, and the cassette holder 9 is placed at the cassette loading position (i.e., the operating position). ), The tape cassette 12 is engaged with the rail shafts 2a and 2b and the cap stand shafts 3a and 3b.

When the cassette holder 9 moves from the cassette inserting position to the cassette loading position, the magnetic head 5 moves in the left direction in FIG. 4 in conjunction with this, and enters into the tape cassette 12 as shown in FIG. Touches the magnetic tape.

In addition, the pinch roller on the same side as the rail shaft of the shaft driven by the motor 4 is connected to the capstan shaft corresponding to the movement of the magnetic head 5 into the tape cassette 12 in this manner. Press through.

For example, when the rail shaft 2b is driven, the pinch roller 6b is press-contacted to the cap stand shaft 3b through the magnetic tape.

In this way, the magnetic tape is driven in one direction to perform recording or reproducing operation.

The spring receiving member 13 is rotatably mounted on the upper surface of the rotating plate 8 by being supported by the one end shaft 14.

Moreover, the ejecting member 15 which is slidable in the inserting-out direction (up-down direction in FIG. 4) of the tape cassette 12 is attached to the rotation board 8. As shown in FIG.

As shown in FIG. 8, this eject member 15 has, at one end (top in FIG. 4), a contact portion 16 to which the tape cassette 12 inserted in the cassette holder 9 is to be abutted. In the swelling part 18 formed in the rotation edge of the rotating plate 8 in the upper surface which has the engaging protrusion 17 to engage with the one rail hub hole of the tape cassette 12 inserted in the cassette holder 9 in the It has the protrusion 19 which contact | connects and regulates the movement amount of a cassette return direction.

On the other hand, in the spring receiving member 13, the pivot end thereof is arranged toward the ejecting member 15 side.

And between the ejection member 15 and the rotational end of the spring receiving member 13, the eject spring 20 made of the deployment spring is crossed.

On the lower surface side of the rotating plate 8, a plate-shaped locking member 21 rotatably mounted to the common shaft 14, such as the spring receiving member 13, is formed.

The locking member 21 is selectively engaged with the contact piece 22 to be positioned on the operation line of the ejecting member 15 and the stationary locking portion 23 (see FIG. 9) of the main board 1 to provide a cassette holder ( 9) is provided with a locking portion 24 for locking the cassette into and out of the cassette, and the locking portion 24 is always rotated in the direction in which the locking portion 24 is locked to the side plate upper edge of the main board 1 by the spring 22a.

On the outer surface of the side plate of the main board 1, as shown in Figs. 10 and 11, the eject operation member 25 is mounted to be able to move forward and backward in the same plane.

The eject operation member 25 has a engaging portion 26 bent at the tip position and is connected to the spring receiving member 13 through the connecting rod 27.

In addition, this eject operation member 25 is supported by the return spring 28 in the right direction in FIG.

Then, when the eject operation member 25 is moving in the right direction (return direction) by the return spring 28 as shown in FIGS. 10 and 11, the spring receiving member 13 is moved to the fourth and fifth positions. As shown in Fig. 12, the spring receiving member 13 is also pressed simultaneously when the ejection operation member 25 is pushed to the left against the return spring 28 as shown in Fig. 12. Figs. Rotate clockwise (king direction) as shown in Fig. 7.

On the outer surface of the side plate of the main board 1 again, as shown in Figs. 10 and 11, the plate-operating force transmission member 29 moves forward and backward in Fig. 10. It is mounted as possible.

And this operation force transmission member 29 is always supported by the return spring 30 in the right direction.

As shown in FIG. 12, when the eject operating member 25 moves leftward, the operating force transmitting member 29 receives the pressing force of the eject operating member 25 from the hydraulic pressure unit 31, and the eject operating member 25 ) To the left and integrally.

The engagement force 33 is bent and formed in the operation force transmission member 29.

On the outer surface of the side plate of the main board 1, the plate-shaped interlocking member 34 supports the shaft 35 at the front position (the left position in FIG. 10) of the eject operating member 25 and the operating force transmitting member 29. It is mounted rotatably.

The interlocking member 34 has a connecting pin 37 to engage with the long groove 36 formed in the shaft plate portion of the rotating plate 8 and the engaging portion 26 of the eject operation member 25 in the right side in FIG. And a engaging protrusion 39 and 40 to be positioned before and after the engaging piece 33 of the operating force transmission member 29 and the hydraulic pressure piece 38 to be pressed by the return spring 28 in contact with the cassette. The press spring 41 is rotated in the counterclockwise direction at all times in FIG. 10.

Next, the operation will be described with reference to FIG. 4 and FIG. 10 and FIG. 10 show the state when the cassette is unloaded. In this state, the eject member 15 moves in the tape cassette ejection direction by the elastic force of the eject spring 20. have.

The cassette holder 9 is located at a stop position away from the main board 1, and the locking portion 24 of the locking member 21 engages with the fixed locking portion 23 of the main board 1, so that the cassette holder 9 Movement to the operating position is prohibited.

In addition, the spring receiving member 13 receives the elastic force of the return spring 28 through the connecting rod 27 and the eject operation member 25, and thus moves in the double acting direction (the direction in which the eject spring 20 is supported). have.

On the other hand, the operation force transmission member 29 abuts the engagement piece 33 on the engagement protrusion 40 of the interlocking member 34, and the return operation by the return spring 30 is prohibited.

In addition, the interlocking member 34 receives the elastic force of the return spring 30 and the cassette press spring 41 to move the cassette holder 9 to the operation position by engaging the long groove 36 and the connecting pin 37. The rotation in the direction is prohibited by the engagement of the fixed stop 23 and the stop 24 (see Fig. 4).

Here, when the tape cassette 12 is inserted into the cassette holder 9 in the longitudinal direction from the cassette insertion opening 11 and in a state substantially parallel to the main board 1, the engaging protrusion of the first eject member 15 is inserted. 17 is engaged with the rail hub hole of the tape cassette 12.

The abutment portion 16 of the eject member 15 located on the insertion line of the tape cassette 12 is then pressed by the tape cassette 12 so that the eject member 15 is retracted against the eject spring 20.

Then, as the ejection member 15 moves, the elastic deformation amount of the eject spring 20 gradually increases, and when the elastic deformation amount exceeds the position where the elastic deformation amount is maximum, this time the elastic force of the eject spring 20 becomes the eject member 15. ) To move in the retraction direction.

Therefore, the force for pressing the tape cassette 12 is unnecessary, and the tape cassette 12 is drawn into the cassette holder 9 by the elastic force of the eject spring 20.

Next, the eject member 15 abuts against the contact piece 22 of the locking member 21 to rotate the locking member 21 in a direction opposite to the fingering direction of the spring 22a.

Accordingly, the locking portion 24 of the locking member 21 deviates from the fixed locking portion 23 of the main board 1 (see FIG. 5), and the rotating plate 8 and the interlocking member 34 are return springs 30. And the cassette pressing spring 41 rotates downward in response to the elastic force of the cassette pressing spring 41, and the cassette holder 9 is also lowered so that the tape cassette 12 is engaged with the rail shafts 2a and 2b and the cap stand shafts 3a and 3b. (See Figure 9).

5, 9 and 11 show a cassette loading state, that is, a state in which the cassette holder 9 is in the operating position.

In this state, the engagement piece 33 of the operation force transmission member 29 is released from the engagement protrusion 40 by the rotation of the interlocking member 34, and the operation force transmission member 29 is returned by the return spring 30.

In addition, the engaging portion 26 of the eject operation member 25 presses the hydraulic pressure piece 38 of the interlocking member 34 by the elastic force of the return spring 28, and this pressing force causes the interlocking member 34 to be eleventh. It works to rotate clockwise as in the figure.

On the other hand, the elastic force of the eject spring 20 is transmitted to the eject operation member 25 through the connecting rod 27, this elastic force also acts in the right direction with respect to the eject operation member 25, like the return spring 28 It acts counterclockwise with respect to the interlocking member 34.

In addition, the motor 4 is started in relation to the cassette holder 9 being moved to the operation position, and one of the rail shafts (for example, the rail shaft 2b), the cap cap shafts 3a and 3b, and the like. The pinch on the same side as the rail axis on the side on which the magnetic head 5 is moved in the direction of the tape cassette 12 and is in contact with the magnetic tape and is subjected to the rotational force of the motor 4 at the same time is started to rotate in this predetermined direction. The roller 6b is pressed against the corresponding cap stand shaft 3b through a magnetic tape to form a recording or reproducing state.

Next, in the case of a stop and when taking out the tape cassette 12, as shown in FIG. 6, the eject operation member 25 may be pressed.

In this case, the eject operation member 25 presses the pressure receiving part 31 of the operation force transmission member 29 as in FIG. 12, thereby moving the operation force transmission member 29 in the same direction.

As a result, the engaging piece 33 presses the engaging protrusion 39 of the interlocking member 34 to rotate the interlocking member 34 clockwise as shown in FIG.

Therefore, the rotating plate 8 rotates counterclockwise, and the cassette holder 9 is raised to the stop position, thereby raising the tape cassette 12 from the rail shafts 2a and 2b and the cap stand shafts 3a and 3b. In the direction.

In addition, by the pressing operation of the eject operation member 25, the spring receiving member 13 is rotated counterclockwise as shown in FIG. 6 through the connecting rod 27, and the eject spring 20 is reversed.

Therefore, the eject member 15 is moved to the position where the protrusion 19 is in contact with the bulge 18 of the pivoting plate 8 as shown in FIG. 7 under the elastic force of the eject spring 20, and thus the tape cassette. (12) is pushed out of the cassette inlet (11).

Moreover, the locking member 21 swings back clockwise in FIG. 7 by the force of the spring 22a, and locks the locking portion 24 to the fixed locking portion 23 of the main board 1, The cassette holder 9 is supported at the stop position.

When the eject operation member 25 is removed, the member 25 is returned by the return spring 28 to be in the states shown in FIGS. 4, 8 and 10.

In the conventional apparatus described above, the eject operation member 25 is pushed and operated in taking out the tape cassette 12 from the cassette holder 9 after the recording operation or the reproduction operation is completed.

The force for pressing the eject operation member 25 is used as a force for raising the cassette holder 9 in one direction, and inverting the eject spring 20 through the connecting rod 27 and the spring receiving member 13 in the other direction. Used as a force to make

In this case, a mechanical system exists in two force transmission systems, and the locking unit 24 cannot obtain an ideal timing relationship that the eject spring 20 is inverted at the time when the locking unit 23 is locked. It is easy to occur that the locking portion 24 locks onto the fixed locking portion 23 after the eject spring 20 is inverted.

In this way, if the reversal operation of the eject spring 20 is made in time, the tape cassette 12 is ejected before the locking portion 24 is locked to the fixed locking portion 23, so that the operator ejects at the time of ejection. When the pressing operation of the operating member 25 is stopped, the cassette holder 9 is lowered again as in FIG.

In this manner, when the cassette holder 9 is in the lowered state, the tape cassette 12 cannot be mounted.

In a vehicle tape recorder or the like, an inlet is usually formed on the front surface of the tape cassette inserting / outlet 11, and the inlet is pushed open by the tape cassette 12 to open the tape cassette 12 to the cassette holder 9. I use it.

Therefore, it cannot be confirmed from the outside whether the cassette holder 9 is in the lowered position. Therefore, the tape cassette 12 is forcibly pressed to break the tape cassette 12 or the cassette holder 9.

In addition, when the ejection spring 20 is inverted and ejected before the locking portion 124 is locked to the fixed locking portion 23 as described above, the capstan shafts 3a and 3b are completely removed from the cassette 12. Since the ejection is made in a non-state, there is a problem such that the tape cassette is damaged by the tip of the cap stand shaft, or the tip portion of the cap stand shaft is damaged.

Therefore, the present invention makes it possible to eject the tape cassette after the cassette holder is supported at the stop position at all times during ejection operation, thus enabling the protection of the cassette holder, the cap stand shaft and the tape cassette, and further enhancing the ease of use. The present invention provides a cassette support apparatus for an improved tape recorder.

The present invention provides a cassette holder which supports a tape cassette with an insertable material and is movable between an operation position and a stop position, and a cassette push spring for holding the cassette holder in an operation position direction; A locking member reciprocally inserted into the cassette holder to engage the locking portion at the reciprocating position so that the cassette holder remains at the stop position; Mounted in the cassette holder to be retracted and retracted under the insertion force of the tape cassette inserted into the cassette holder to remove the locking member from the fixed locking portion, and given in relation to the movement of the locking member accompanying the ejection operation. A cassette support apparatus of a tape recorder having an ejecting member for advancing with an elastic force of an ejecting spring to return a tape cassette in a take-out direction, wherein the locking member is provided when the locking portion is in a position deviated from the fixed locking portion. It is located on the movement line of the eject member and prohibits the forward movement of the eject member, and when the locking portion is in the position to engage the fixed stop portion, it has a protrusion that deviates from the movement line of the eject member.

After the locking portion is locked to the fixed locking portion, that is, after the cassette holder is supported at the stop position, the ejecting member advances and ejects the tape cassette.

Hereinafter, embodiments of the present invention will be described in detail with reference to FIGS. 1 to 3.

In these drawings, the same parts as those in FIGS. 4 to 13 are denoted by the same reference numerals, and description of overlapping parts will be omitted.

The difference from the conventional one in the apparatus according to this embodiment lies in the structure of the locking member 21a and the structure of the ejecting member 15a.

That is, as shown in Figs. 2 and 3, the locking member 21a is integrally formed with a knitted body 51 extending close to the ejecting member 15 and extending toward the tape cassette inserting / outlet 11 side. The protrusions 52 and 53 which protrude toward the ejecting member 15a side are formed at the front end portion and at a position where the predetermined and predetermined positions are retracted from the side facing the ejecting member 15a of 51).

The protrusion 52 is formed with a relatively wide width in the actuation direction of the eject member 15a, and the protrusion 53 is formed narrow.

On the other hand, a recess 54 for selectively fitting the protrusion 53 is formed on the engaging protrusion 17 side surface of the eject member 15a.

In addition, the recessed portions 54 and the protrusions 53 and 52 are specifically formed so as to have a corresponding relationship.

In other words, when the tape cassette 12 is inserted into the cassette holder 9 when the tape cassette is loaded, the tape cassette 12 presses the contact portion 16 so that the eject member 15a is retracted, and then the contact portion 16 is pressed. ) Pushes the contact piece 22 of the locking member 21a.

As a result, the locking member 21a rotates the shaft 14 to the support point, and the locking portion 23 moves away from the fixed locking portion 24 so that the cassette holder 9 descends as described above. As shown in Fig. 2, when the protrusion 53 is fitted in the recess 54, and the ejection operation member 25 is pressed at the time of cassette ejection, the rotational shortening of the locking member 21a is raised. As shown in the figure, when the locking portion 24 is completely locked to the fixed locking portion 23 (at this time, the ejection spring 20 is inverted), a relationship in which the protrusion 53 exits from the recess 54 is established. Formed.

On the other hand, the projection 52 does not affect the retraction and the forward motion of the eject member 15a, and when the eject member 15a is in the forward position as shown in FIG. 3, the side surface of the eject member 15a It is formed so that the relationship facing the said side surface may be established with the space | interval t2 within the distance t1 which is necessary for releasing the locked state of the locking part 24 and the fixed stop part 23 between and.

According to the present invention as described above, when the eject operation member 25 is pressed to take out the tape cassette 12 loaded in the cassette holder 9, the locking portion 24 of the locking member 21a is fixed to the locking portion ( 23, when the locking portion 24 of the locking member 21a is locked to the fixed locking portion 23, the protrusion 53 is pulled out of the recess 54.

When the protrusion 53 is removed from the recess 54, the eject spring 20 has already been inverted as described above.

Therefore, when the protrusion 53 is removed from the recessed part 54, the ejecting member 15a starts the forward operation to eject the tape cassette 12.

In addition, this invention is not limited to the structure of the said Example.

For example, as shown in FIG. 14, the uniaxial protrusion 52 may be formed close to the tip of the eject member 15a, and the other protrusion 53 may be omitted.

In this way, when the cassette is loaded, the protrusion 52 can prohibit the movement of the eject member 15a in the eject direction, and at the time of stopping, the tip of the protrusion 52 is similar to that of the ejection member 15a. Since the side surface is approaching, the locking portion 24 can be prevented from being peeled off from the fixed locking portion 23.

And the recessed part 54 of the eject member 15a can also be abbreviate | omitted by omitting the protrusion 53. As shown in FIG.

Therefore, according to the present invention, no matter how the ejector operating member is operated, the ejector member first starts ejecting the tape cassette when the cassette holder is supported at the stop position.

Therefore, it is possible to reliably prevent the problem that occurs when the eject member is ejected before the cassette holder is supported at the stop position, and to protect the cassette holder, the cap stand shaft, the tape cassette, and the like. It is also easy.

Claims (1)

A cassette holder 9 capable of supporting the tape cassette 12 with an insertable material to move between the operation position and the stop position; A cassette press spring 41 which holds the cassette holder 9 in the operation position direction; A locking member 21a which is inserted into the cassette holder 9 so as to be reciprocated and engages the locking portion 24 with the fixed locking portion 23 at the reciprocating position to keep the cassette holder 9 at the stop position; ; It is retractably mounted on the cassette holder 9 and is retracted by the insertion force of the tape cassette 12 inserted into the cassette holder 9 to remove the locking member 21a from the fixed locking portion 23. Of the tape recorder having an ejecting member (15a) for returning the tape cassette (12) in the ejecting direction by advancing with the elastic force of the ejecting spring (20) given in relation to the movement of the locking member (21a) with the ejecting operation. In the cassette supporting apparatus, the locking member 21a is positioned on the moving line of the ejecting member 15 when the locking portion 24 is in a position away from the fixed locking portion 23. Prohibits the forward movement of 15a, and when the locking portion 24 is in a position to engage the fixed locking portion 23, the ejecting member 15a has a protrusion 53 which is out of the moving line. Characterized by Tei Cassette support device of the recorder.