KR900002068Y1 - Cassette ejecting apparatus of tape recorder - Google Patents

Abstract

No content.

Description

Cassette eject unit of tape recorder

1 to 4 are views for explaining the configuration of the cassette ejection apparatus of the tape recorder according to the embodiment of the present invention, Figure 1 is a plan view in the cassette unloaded state.

2 is a plan view of a recording or playback state.

3 and 4 are plan views of tape cassette ejectors.

5 to 14 are views for explaining a conventional tape recorder, Figure 5 is a plan view in the cassette unloaded state.

6 is a plan view in the recording or playback state.

7 and 8 are plan views of the tape cassette ejection.

9 is a sectional view taken along line I-I of FIG. 5;

10 is a sectional view taken along line IV-IV of FIG. 6;

FIG. 11 is a II-II perspective view of FIG. 5. FIG.

12 is a V-V perspective view of FIG.

FIG. 13 is a VI-VI perspective view of FIG. 8. FIG.

14 is a III-III perspective cross-sectional view of FIG.

* Explanation of symbols for main parts of the drawings

1: Main board 2: Real axis

3a, 3b: Capstan shaft 4: Motor

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

7: cassette holder 8: rotating plate

9: cassette insert 10: bending piece

11: cassette insertion hole 12: tape cassette

13: spring support member 15: eject member

16: contact part 17: engaging protrusion

18: stopper part 19: stopper protrusion

20: eject spring 21: fastening member

22: reception piece 23: winning prize

24: hook 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: engaging piece 34: interlocking member

36: groove 37: connection pin

38: hydraulic pressure piece 39, 40: engaging protrusion

41: cassette press spring 43: torsion spring

The present invention relates to a cassette ejector apparatus of a tape recorder in which a cassette cassette is reliably taken out of a cassette holder.

5 to 14 show the schematic structure of the cassette type tape recorder first developed by the present invention, which has been filed as a special element and No. 59-15676, and is already known, that is, FIG. Is a plan view of a tape drive including a pair of rail shafts (2a) and (2b) capstans (3a) and (3b) and a motor (4) for rotating them on the upper surface side of the main board (1). Equipped with a mechanism, the motor 4 simultaneously rotates both capstan shafts 3a and 3b in the tape sending direction, and alternatively selects a pair of rail shafts 3a and 3b. In general, they are rotated in the tape winding direction.

On the upper surface of the main board 1, a magnetic head 5 for recording and reproducing and pinch rollers 6a and 6b corresponding to each capstan shaft 3a and 3b are mounted.

In addition, a cassette holder 7 is attached to the upper surface of the main board 1.

The cassette holder 7 is a pivoting plate 8 pivoted in an up and down direction (direction orthogonal to the ground of FIG. 5) with the upper edge as the axis in FIG. 5, and the pivoting of the pivoting plate 8 It consists of the cassette insert 9 etc. which were supported by the rotation material in the up-down direction (direction orthogonal to the paper surface of FIG. 5) at the edge part (refer FIG. 9, FIG. 10).

In addition, the connection structure between the rotating plate 8 and the cassette holder 9 is such that the upper bent portion 9a of the cassette holder 9 is lowered to the slit 8a of the rotating plate 8 as shown in FIG. The ring-shaped bent portion 9b of the cassette insert 9 is fitted on the upper side of the tip portion 8b of the rotating plate 8.

The amount of rotation in the upward direction of the rotating plate 8 is regulated by the bending piece 10 formed on the upper sidewall of the main board 1, and the presence of the bending piece 10 causes the rotating plate 8 and the cassette insert ( 9) maintains the substantially parallel state of the main board 1 in moving to the upper side.

The cassette insert 9 has a cassette insertion hole 11 in the lower end side (left end in FIG. 9) in FIG. 5, and the cassette holder 7 is in the cassette insertion position of FIG. In this state, the tape cassette 12 can be inserted through this cassette insertion hole 11.

In the state where the tape cassette 12 is inserted into the cassette insert 9, the rotating plate 8 rotates downward as shown in FIG. 10, and the cassette holder 7 is placed at the cassette loading position (i.e. 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 7 moves from the cassette insertion position to the cassette long position, the magnetic head 5 moves to the left in FIG. 5 in conjunction with this, and enters into the tape cassette 12 as shown in FIG. Touches the magnetic tape.

In this way, in conjunction with the operation in which the magnetic head 5 enters into the tape cassette 12, the rail shaft on the side and the pinch roller on the side driven by the motor 4 provide a magnetic tape to the corresponding capstan shaft. Press through.

For example, when the rail side 2b is being driven, the pinch roller 6b presses the magnetic tape on the cap stand shaft 3b.

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

The spring supporting member 13 is attached to the upper surface of the rotating plate 8 by rotating the end by supporting the shaft 14 with one end, and the inserting direction of the tape cassette 12 is inserted into the rotating plate 8. The ejecting member 15 is attached to the slide material in the vertical direction in FIG. 5.

This ejection member 15 has at its one end (upper in FIG. 5) the abutment portion 16 to which the tape cassette 12 inserted in the cassette insert 9 is to be abutted, as in FIG. A stopper portion 18 formed at the other end of the engaging portion 17 to be engaged with the one-hole hub hole of the tape cassette 12 inserted into the sieve 9 and formed at the rotational end of the rotating plate 8. ) Has a stopper protrusion 19 on its upper surface for regulating the amount of movement in the cassette return direction.

On the other hand, the spring support member 13 arranges the pivot end toward the eject member 15 side, and between the ejection member 15 and the pivot end of the spring support member 13, an eject spring 20 made of a deployment spring. ) Is crossed.

Toggle mechanism is comprised by these spring 13, the eject member 15, and the eject spring 20. As shown in FIG.

On the lower surface side of the rotating plate 8, a spring supporting member 13 and a plate-shaped fastening member 21 mounted on the common shaft 14 to be rotated freely are formed.

The fastening member 21 selectively hangs on the contact piece 22 positioned on the operation line of the eject member 15 and the granular piece 23 of the main board 1 (see FIG. 10). It has a fastening part 24 etc. which are fastened to a cassette insertion position, and the fastening part 24 is always rotated in the fastening direction to the side plate upper edge of the main board 1 by the spring which is not shown in figure.

As shown in FIG. 11 and FIG. 12, the ejection operation member 25 is attached to the side plate outer surface of the main board 1 in the left-right direction.

The ejection operation member 25 is connected to the spring support member 13 through the engaging portion 26 bent at the tip position and through the connecting rod 27.

The ejection operation member 25 is always supported in the right direction in FIG. 11 by the return spring 28.

When the ejection operation member 25 is moving in the right direction (return direction) by the return spring 28 as in FIGS. 11 and 12, the spring receiving member 13 is moved to the 5th, 6th degree. Likewise, when the ejection operation member 25 is pushed to the left by the return spring 28 as shown in FIG. 13, the spring support member 13 also moves as shown in FIGS. 7 and 8 at the same time. Rotate counterclockwise (wanging direction).

On the outer surface of the side plate of the main board 1 again, as shown in FIG. 11, 12 degree, it is located under the ejection operation member 25, and the plate-shaped operation force transmission member 29 advances in the left-right direction in FIG. It is installed freely.

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

The operation force transmission member 29 receives the press force of the eject operation member 25 from the hydraulic pressure unit 31 when the eject operation member 25 moves in the left direction as shown in FIG. 13. Move leftward integrally with.

In addition, the engaging piece 33 is bent and formed in the operation force transmission member 29.

In addition, the main board 1 has a plate-shaped interlocking member 34 at the front position (left position in FIG. 11) of the eject operating member 25 and the operating force transmitting member 29 on the outer surface of the side plate. It is equipped with a rotating material.

The interlocking member 34 is connected to the connecting piece 37 to be engaged with the long groove 36 formed in the side plate portion of the rotating plate 8 and the engaging portion 26 of the eject operation member 25 in FIG. Abutment protrusion 39, 40, etc. which are located in front of and behind the engagement piece 33 of the hydraulic pressure piece 38 and the operation force transmission member 29 which are abutted on the right side and are subjected to the pressure by the return spring 28 are provided. The cassette push spring 41 is always supported by counterclockwise rotation in FIG.

Next, the operation will be described with reference to Figs. 5, 9, and 11, which show the state when the cassette is unloaded. In this state, the eject member 15 is moved in the tape cassette ejection direction by the elasticity of the eject spring 20. Figs. .

In addition, the cassette holder 9 is located at a stop position away from the main board 1, and the engaging portion 24 of the fastening member 21 is engaged with the granular piece 23 of the main board 1 so that the cassette holder 7 Movement to the operating position is prohibited.

Moreover, the spring support member 13 receives the elastic force of the return spring 28 through the connecting rod 27 and the ejection operation member 25, and is thus moving in the double acting direction (the direction which makes the eject spring 20 accumulate). .

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 elasticity of the return spring 30 and the cassette pressing spring 41 to move the cassette holder 7 to the operation position by engaging the long groove 36 and the connecting pin 37. Although rotational rotation is carried out in the direction, rotation in that direction is prohibited by the engagement of the granular piece 23 and the engagement part 24 (refer FIG. 5).

Here, when the tape cassette 12 is inserted in the cassette holder 7 in the cassette insertion hole 11 in the longitudinal direction, and inserted in a substantially parallel state with the main board 1, the engaging protrusion of the eject member 15 is first. (17) is engaged with the rail hub hole of the tape cassette 12.

Then, the tape cutset 12 presses the contact portion 16 of the eject member 15 positioned on the insertion line of the tape cassette 12, so that the eject member 15 is moved by the eject spring 20. As shown in FIG.

And when the elastic deformation amount of the eject spring 20 which does not accompany the movement of the eject member 15 gradually increases and it exceeds the position where the elastic deformation amount becomes the maximum, this time, the elastic force of the eject spring 20 will become an eject member ( 15) in the direction of movement.

Thus, no force pushing the tape cassette 12 is required, and the tape cassette 12 is drawn into the cassette holder 7 by the elastic force of the eject spring 20.

Next, the eject member 21 is rotated in the half finger direction.

As a result, the engaging portion 24 of the engaging member 21 is displaced from the standing piece 23 of the main board 1 (see FIG. 6), and the rotating plate 8 and the interlocking member 34 have a return spring ( 30) and the cassette pressing spring 41 is rotated downward in response to the elastic force, and the cassette insert 9 is also lowered to move the tape cassette 12 to the rail side 2a, 2b and capstan shaft 3a ( 3b) (see Figure 10).

6, 10 and 12 show the cassette in a long state, i.e., the cassette holder 7 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 twelfth. It acts to rotate counterclockwise as in the figure.

Meanwhile, the elastic force of the eject spring 20 is transmitted to the eject operation member 25 through the connecting rod 27, and the elastic force also acts in the right direction with respect to the eject operation member 25 like the return spring 28. Again, it acts counterclockwise with respect to the interlocking member 34.

In addition, the cassette holder 7 is moved in relation to the movement of the cassette holder 7 so that one of the rail shafts, for example, the rail shaft 2b, the cap cap shafts 3a, 3b, and the like is predetermined. Direction of rotation, and at the same time, the magnetic head 5 moves in the direction of the tape cassette 12 to be in contact with the magnetic head, and again the pinch roller 6b on the same side as the rail axis under the rotational force of the motor 4. ) Is pressed against the corresponding cap stand shaft 3b through a magnetic tape to form a recording or reproducing state.

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

At this time, the eject operation member 25 presses the pressure receiving part 31 of the operation force transmission member 29 as shown in FIG. 13 to move the operation force transmission member 29 in the same direction.

Here, the engaging piece 33 presses the engaging part 39 of the interlocking member 34 to rotate the interlocking member 34 clockwise as shown in FIG.

Thus, the rotating plate 8 rotates in a counterclockwise direction, whereby the cassette insert 9 is raised to the stop position, thereby moving the tape cassette 12 to the rail shaft 2a, 2b and the cap stand shaft 3a, 3b. ) Up).

In addition, in the pushing operation of the eject operation member 25, the spring support member 13 rotates in the counterclockwise direction as shown in FIG. 7 through the connecting rod 27 to reverse the eject spring 20.

For this reason, the eject member 15 is moved in the cassette ejection direction as shown in FIG. 8 by receiving the elastic force of the eject spring 20, and the stopper protrusion 19 moves the stopper portion 8 of the rotating plate 8. As shown in FIG. A taper cassette 12 is pressed back from the cassette insertion hole 11 by abutting against the stopper portion 18 of FIG.

In addition, the fastening member 21 elastically returns to the clockwise direction in FIG. 7 to fasten the fastening portion 24 to the granular piece 23 of the main board 1 to stop the cassette insert 7. Keep in position.

When the ejection combination member 25 is removed, the member 25 is returned by the return spring 28 and is in a state of 5, 9 and 11 degrees.

In the conventional apparatus described above, the certainty of the cassette eject operation is defective.

That is, when the eject operation member 25 is pressed to the state shown in FIG. 7 in the state of FIG. 6 with the tape cassette 12 loaded, the point A (spring support member 13) in FIG. The position of the connection point of the ejection spring 20) is the BC line (the line connecting the point B, which is the pivot center of the spring support member 13, and the point C, which is the connection point between the ejection spring 15 and the ejection spring 20). When exceeding, the eject spring 20 reverses the clockwise direction and holds the eject member 15 in the ejection direction of the tape cassette 12.

The gripping force f ₁ at this time is the A'C line at the point C (the line connecting the position and the point C of the connection point between the spring support member 13 and the eject spring 20 after the inversion operation of the eject string 20). It is a vector component in the extraction direction of the tape cassette 12 of the elasticity f in the direction, and is given by f ₁ = f sin α.

Α is an angle between the A'C line and the line D orthogonal to the ejection direction of the tape cassette 12, and the larger the angle α is, i.e., the larger the spring support member 13 rotates, the larger the f ₁ is. The member 15 is strongly held in the extraction direction of the tape cassette 12.

However, in reality, when the operation amount of the eject operation member 25 is too large, the operability is deteriorated, so that it is difficult to increase the amount of rotation of the spring support member 13 depending on the operation amount of the eject operation member 25. .

Therefore, it is difficult to increase the holding force f ₁ of the eject member 15 which contributes to the ejection of the tape cassette 12 in the state of FIG. 7, so that even if the cassette eject operation for pressing the eject combination member 25 is performed, A situation in which the cassette 12 cannot be taken also occurs.

Therefore, the object of the present invention is to provide a cassette ejector device of a tape recorder capable of ensuring cassette ejection operation without impairing operability. The present invention forms a torsion spring in the cassette holder, Engage the cassette holder to the engagement member for holding the cassette holder in the cassette insertion position, and press the other end of the tooth spring with the spring support member to move the engagement member in the engagement position direction according to the eject operation. Resilience to move in the cassette return direction is characterized by the fact that the torsion springs are condensed.

In the present invention, the torsion spring newly formed in the cassette eject operation is pressed by the rotation of the spring support member, so that the eject member is held in the cassette ejection direction in a manner that cooperates with the eject spring.

Hereinafter, embodiments of the present invention will be described with reference to FIGS. 1 to 4.

Only the difference with the conventional apparatus described with reference to FIGS. 5-14 is attached to the torsion spring 43 via the shaft 42 to the rotating plate 8 of the cassette holder 7.

One end 43a of the torsion spring 43 is engaged with a bent portion formed at the distal end of the contact piece 22 of the fitting member 21, and the other end 43b of the torsion spring 43 is a spring supporting member. It is located on the operation line of (13), and the other end 43b of the torsion spring 43 is pressed by the spring support member 13 in the eject operation.

By forming the torsion spring 43 as described above, a reliable cassette ejection operation can be obtained.

That is, in the eject operation, when the eject operation member 25 is pushed as shown in FIG. 3, the eject spring 20 is reversed in response to the counterclockwise rotation of the spring support member 13, and at the same time, the spring support member ( 13) presses the other end 43b of the torsion spring 43 in the course of the rotation, and rotates the torsion spring 43 in the clockwise direction about the axis 42.

Here, one end 43a of the torsion spring 43 is fastened to the fastening member 21 through the contact piece 22, so that the fastening member 21 is fastened to the torsion spring 43 in the fastening position direction. The elasticity for rotating and moving the ejecting member 15 in the cassette pressing direction in the return direction is stored.

Therefore, if the eject operation is continued, when the eject spring 20 is reversed, the torsion spring 43 cooperates with the eject spring 20, and the eject member 15 is strongly held in the cassette ejection direction.

Therefore, the cassette ejection operation shown in FIG. 4 is performed reliably, and the operation in the engagement position direction of the engagement member 21 is also assured.

At this time, the amount of rotation of the spring support member 13, that is, the operation amount of the eject operation member 25 need not be made extremely large for the ejection operation, and thus the operability is not impaired.

Therefore, the present invention can ensure the tape cassette ejection operation with excellent operability only by adding a torsion spring.

Claims (1)

Keeping the spring support member 13 pivoting in conjunction with the movement of the eject operation member 25, the eject member 15 retreating in the tape cassette insertion direction, and the cassette holder 7 in the cassette insertion position. A toggle mechanism is formed by a spring support member, an eject member, and an eject spring across the clamping eject spring 20 for the purpose. When the tape cassette is inserted into the cassette holder, the eject member 15 is pushed onto the tape cassette to eject the spring. (20) is inverted, and after reversal of the eject spring, the eject member moves the resilient spring of the eject spring to the latch release position to move the cassette holder 7 to the cassette long position. When the cassette holder is moved from the cassette long position to the cassette insertion position by ejecting, the spring supporting member The cassette of the tape recorder which rotates and inverts the eject spring 20 so that the eject member receives the elasticity of the eject spring and moves in the cassette return direction and moves the latch member 21 in the latch position. The ejection apparatus WHEREIN: The torsion spring 43 is attached to the cassette holder 7, and one end of this torsion spring is engaged with the fastening member 21, and the said spring support member 13 which does not accompany an eject operation is carried out. By pressing the other end of the torsion spring, the torsion spring 43 is moved to the latching member 21 in the latching position direction, and the elasticity for moving the ejector member 15 in the cassette pressing and returning direction. The cassette ejection device of the tape recorder, characterized in that the stockpile.