JPH04132638U - Tape cassette loading device - Google Patents

Abstract

(57) [Summary] [Objective] To provide a tape cassette loading device in which a cassette holder does not move to a tape playback position unless the tape cassette is pulled into a predetermined position within the cassette holder. [Structure] Before the cassette drawing slider 13 draws the tape cassette 8 to a predetermined position in the cassette holder 11, a loading stopper 29 prohibits movement of the cassette holder elevation control plate 21. Furthermore, when the tape cassette 8 is pulled into a predetermined position within the cassette holder 11, the prohibition of the tape cassette 8 from moving on the cassette holder elevation control plate 21 by the loading stopper 29 is released.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

In this invention, the tape cassette is not pulled into the specified position in the cassette holder. If the tape cassette holder is not moved to the tape playback position, related to a cut loading device.

0002

[Conventional technology]

Conventionally, the tape cassette is inserted into the cassette holder. Move the cassette retraction slider slightly in the cassette retraction direction using the Turn on the motor switch using the cassette retracting slider and turn on the loading motor. The loading motor moves the cassette holder lift control plate. further move the cassette retraction slider in the cassette retraction direction, and Place the tape cassette into the cassette holder using the cassette pull-in slider. After pulling the cassette holder into the normal position, remove the tape from the cassette insertion/ejection position. A tape cassette loading device that moves the tape to the playback position is known. .

0003

[Problem that the idea aims to solve]

In such conventional tape cassette loading devices, the motor switch After the loading motor rotates due to input, stop this loading motor. Otherwise, the cassette holder will move to the tape playback position.

0004 Therefore, for example, when a tape cassette is loaded into a cassette holder by the force of the loading motor, The tape cassette is inserted into the cassette holder while it is being pulled into the specified position inside the tape cassette. This cassette holder has no tape cassette inserted when it is pulled out from the cassette holder. The tape cassette may have been moved to the playback position empty, or the tape cassette may have been moved to the cassette holder. If the cassette holder gets stuck in the middle of the cassette holder, leave it in this state and By moving to the tape playback position, the tape cassette is stuck. There is a risk that the device may be damaged.

[0005] This invention was made in view of the above circumstances, and the tape cassette is a cassette holder. This cassette holder will not move to the tape playback position unless it is pulled into place inside the cassette holder. The purpose of this invention is to provide a tape cassette loading device that does not move. are doing.

[0006]

[Means to solve the problem]

In order to achieve this purpose, the present invention inserts a tape cassette into a cassette holder. By inserting the cassette into the tape cassette, the slider for pulling the cassette can be pulled out. Move the cassette slightly in the loading direction, and then turn the motor switch using the slider for pulling the cassette. The loading motor rotates forward, and the loading motor loads the cassette. Move the holder lift control plate to further move the cassette pull-in slider. the tape cassette in the cassette retraction direction, and then use the cassette retraction slider to After pulling the cartridge into the cassette holder to a predetermined position, remove the cassette holder. A tape cassette that moves from the cassette insertion/ejection position to the tape playback position. In the loading device, The cassette drawing slider moves the tape cassette into the cassette holder. A lock that prohibits movement of the cassette holder elevation control plate until the cassette holder lift control plate is pulled into a predetermined position inside the cassette holder. A loading stopper is provided, and the loading stopper is pulled into the predetermined position. The loaded tape cassette is brought into contact with the cassette holder by the loading stopper. This feature is characterized by canceling the prohibition of movement of the ladder elevation control plate.

[0007]

[Effect]

The cassette retracting slider moves the tape cassette to the specified position inside the cassette holder. The loading stopper moves the cassette holder elevation control plate until it is pulled in. is prohibited, so the tape cassette does not reach the specified position in the cassette holder. The cassette holder does not move to the playback position unless it is retracted.

[0008] Then, the tape cassette is pulled into a predetermined position within the cassette holder. When the tape cassette comes into contact with the loading stopper, , the movement of the cassette holder elevation control plate is prohibited by this loading stopper. The cassette holder is released and moved to the playback position.

[0009]

【Example】

Hereinafter, one embodiment of the present invention will be described based on the drawings.

0010 Figure 1 shows a tape recorder equipped with a tape cassette loading device according to the present invention. Fig. 2 is a plan view of the same in the stopped state, and Fig. 2 is a plan view of the same in the playback state. A coder board (hereinafter simply referred to as the board), on the top surface of which is a tape drive motor 2, Each pair of reel receivers 3a, 3b, capstans 4a, 4b, pinch rollers 5a, 5b are arranged respectively.

These reel receivers 3a, 3b and capstans 4a, 4b are rotationally driven by a tape drive motor 2. Pinch roller arms 5 ₁ and 5 ₂ that rotatably support pinch rollers 5a and 5b are connected to a head mounting plate 6 mounted on the upper surface of the substrate 1 so as to be able to reciprocate in the directions of arrows A and B.

0012 When the head mounting plate 6 is in the return position (stop position), it is as shown in Figs. 1 and 3. Each pinch roller 5a, 5b is spaced apart from the capstan 4a, 4b. Also , when the head mounting plate 6 moves forward in the direction of arrow A and reaches the playback position, the position shown in FIGS. 2 and 5 is reached. The pinch rollers 5a, 5b are in pressure contact with the corresponding capstans 4a, 4b. A magnetic head 7 is attached to the upper surface of the head mounting plate 6. This magnetic head Only when the head mounting plate 6 is in the playback position, the board 7 is moved as shown in FIGS. 2 and 5. contact the tape of the tape cassette 8. The head mounting plate 6 has a return spring (not shown) is biased toward the non-reproduction position (in the direction of arrow B).

[0013] This head mounting plate 6 rotates as the tape cassette 8 is loaded into the playback position. Due to the biasing force of a spring (not shown) accumulated by the force of the rotating tape drive motor 2, The robot moves forward in the direction of arrow A.

[0014] A rotary plate 9 is mounted above the board 1 so as to be freely rotatable in the vertical direction about a shaft 10. (See Figures 1, 2, 5 and 6). There is a cassette holder on the underside of this rotating plate 9. holder 11 is rotatably mounted. This cassette holder 11 is a tape cassette 8, and has a tape cassette insertion/ejection opening 11a on one end side. , the tape cassette 8 is transferred from the head mounting plate 6 through the tape cassette insertion/ejection opening 11a. It can be inserted and removed in a direction perpendicular to the moving direction (directions of arrows C and D).

[0015] Then, the tape cassette 8 is inserted into the predetermined position in the cassette holder 11. In this state, the rotating plate 9 rotates downward together with the cassette holder 11, thereby removing the tape. Each reel center hole 8a, 8b of the reel set 8 is engaged with the corresponding reel receiver 3a, 3b. At the same time, this tape cassette 8 is loaded into the playback position (see Figures 2, 4 and 6). (see).

[0016] A guide hole 12 located approximately in the center of the rotating plate 9 has a slider for pulling in a cassette (hereinafter simply referred to as (referred to as a slider) 13 is connected to the insertion/removal direction of the tape cassette 8 (directions of arrows C and D). They are engaged so as to be movable in the same direction (see FIGS. 1 and 2). This slider 13 An engaging portion (not shown) provided on the tip 13a engages one lead of the tape cassette 8. The slider 13 is integrated with the slider 13 by detachably engaging with the edge of the center hole 8a. The tape cassette 8 moves within the cassette holder 11 in the directions of arrows C and D.

[0017] The slider 13 is connected to one end of a rotating arm 14. This rotating arm 14 is located above the rotating plate 9, and the other end is rotated to the upper surface of one side of the rotating plate 9 by the shaft 15. It is attached so that it can move freely.

[0018] Located below the rotating arm 14 and above the rotating plate 9, this rotating arm 14 and A rotating body 16 is provided so as to be rotatable coaxially. Between the rotating arm 14 and the rotating body 16 A torsion spring 17 is interposed between them. With this torsion spring 17, The rotating arm 14 is biased clockwise, and the rotating body 16 is biased counterclockwise. has been done.

[0019] The rotating arm 14 is in contact with the stopper protrusion 18 provided on the rotating body 16. As a result, the rotation of the rotating arm 14 and the rotating body 16 due to the biasing force of the torsion spring 17 is prevented. The limit angle of movement is regulated.

[0020] The rotary body 16 has a tape cassette 8 inserted and removed in the direction of insertion and removal (arrows C and D) on the lower side of the rotary plate 9. A slide plate 19 is connected to the slide plate 19, which is slidably arranged in the same direction as the (direction). (See FIGS. 5 to 11). By sliding this slide plate 19, the rotating body 1 6 and the rotating arm 14 rotate together, and the slider 13 slides with this rotation. It has become so.

[0021] The slider 13 of the slide plate 19 moves in the direction of arrow C together with the tape cassette 8. After the cassette holder 11 is pulled into a predetermined position, It is designed to be able to slide independently in the direction of a predetermined stroke arrow C.

[0022] An engagement pin 20 protruding from the slide plate 19 connects to a cassette holder elevation control plate (hereinafter referred to as , simply referred to as the elevation control plate) 21 is rotatably engaged with the engagement recess 22 (see FIG. 5 and FIG. 6). This lift control board 21 is attached with tape on the inside of one side wall 1a of the board 1. It is installed so that it can freely reciprocate in the same direction as the insertion and removal direction of cassette 8 (arrow C, D direction). Ru. The slide plate 19 slides as the elevation control plate 21 moves back and forth. It looks like this.

[0023] As shown in FIG. 13, the elevation control plate 21 has an engagement plate protruding from one end and approximately the middle portion thereof. The protrusions 23a and 23b are connected to the engagement elongated holes 24a provided on the front and rear sides of one side wall 1a of the substrate 1. , 24b, so that it can be moved inside this one side wall 1a. It is installed.

[0024] A pair of guide holes 25 and 26 are provided at the front and rear of the elevation control plate 21. this The guide holes 25 and 26 have the same shape, and the horizontal portions 25a and 26a have the same shape. Approximately doglegged shape with downwardly inclined slopes 25b and 26b connected to one end. It becomes.

[0025] These guide holes 25 and 26 are provided with engagement holes protruding from one side of the cassette holder 11. The mating protrusions 27 and 28 are engaged so as to be relatively movable (see FIGS. 5 and 6). The engaging protrusions 27 and 28 are positioned to engage with the horizontal portions 25a and 26a of the guide holes 25 and 26. As long as the rotating plate 9 is held in the upward rotating position and the cassette holder is held as shown in FIG. The router 11 is held in the raised position.

[0026] Then, as the elevation control plate 21 moves forward in the direction of arrow C, the engagement protrusions 27, 2 8 is moved from the horizontal parts 25a, 26a of the guide holes 25, 26 to the inclined parts 25b, 26b. By rotating the rotating plate 9, the rotating plate 9 rotates downward about the shaft 10 and rotates the cassette holder. 11 descends while maintaining a horizontal state (see FIG. 6).

[0027] Further, as the elevation control plate 21 moves back in the direction of arrow D, the engagement protrusions 27 and 28 transitions from the inclined parts 25b, 26b of the guide holes 25, 26 to the horizontal parts 25a, 26a. As a result, the rotary plate 9 rotates upward about the shaft 10 and the cassette holder 1 1 rises while maintaining a horizontal state.

[0028] A loading stopper 29 is provided on the lower surface of the rotating plate 9 as shown in FIGS. 8 to 11. It is being This loading stopper 29 is rotatably attached to the rotary plate 9 by a shaft 30. It is currently installed. The loading stopper 29 prevents the tape cassette 8 from being loaded. Lifting control until it is pulled into a predetermined position in the set holder 11 (above the tape playback position) This prohibits the plate 21 from moving in the direction of arrow C.

[0029] The loading stopper 29 is configured so that the front end corner 19a of the slide plate 19 can be freely engaged and detached. The first contact portion 29a is in contact with the first contact portion 29a, and the second contact portion 29a is in contact with the front edge portion 8c of the tape cassette 8. It has a contact portion 29b. The loading stopper 29 is 12, the front end corner 1 of the slide plate 19 is attached to the first contact portion 29a. 9a makes it possible for the elevation control plate 21 to move in the direction of arrow C. Therefore, the engaging protrusions 27 and 28 of the cassette holder 11 are not in contact with the water in the guide holes 25 and 26. The cassette holder 11 is held in a horizontal state by being engaged with the flat parts 25a and 26a. There is.

[0030] Then, the tape cassette 8 is pulled into the cassette holder 11 to a predetermined position. As the tape cassette 8 is being loaded, the front end edge 8c of the tape cassette 8 is pressed against the loading stopper 29. The second contact portion 29b of the second contact portion 29b is contacted. Then, this loading stopper 29 is shown in FIG. , rotated clockwise from the state shown in Figs. 11 and 12 to the state shown in Figs. 9 and 10. As a result, the first contact portion 29a of the loading stopper 29 and the front end of the slide plate 19 The contact with the corner portion 19a is released. This causes the elevation control board 21 to move in the direction of arrow C. is allowed to move, and the engaging protrusions 27 and 28 of the cassette holder 11 align with the guide hole 25. , 26, and the cassette holder 11 rotates downward. .

[0031] The loading stopper 29 is operated by a torsion spring 55 as shown in FIG. , in the counterclockwise direction in FIG. It is rotationally biased in the direction of contacting the portion 19a.

[0032] Between one side wall 1a of the substrate 1 and the elevation control plate 21, there is a space between the head mounting plate 6 in the direction of arrow A. A forward movement prevention plate 31 that prevents the movement of Currently located. As shown in FIG. Move the protruding engagement protrusion 32 to the engagement elongated hole 24b on the rear side of one side wall 1a of the substrate 1. By freely engaging, it is movably attached to the inside of this one side wall 1a. .

[0033] A square hole 31a is bored in the portion of the forward blocking plate 31 where the engaging protrusion 32 is provided. . The engaging protrusion 23b at the middle part of the elevation control plate 21 passes through the square hole 31a in a freely movable manner. It has been passed. The elevation control plate 21 and the forward movement prevention plate 31 correspond to the width of this square hole 31a. are designed to reciprocate independently relative to each other.

[0034] An engagement side portion 33 is provided at the lower edge of the forward movement prevention plate 31. One end portion 33a is an inclined surface. As shown in FIG. The outer peripheral surface of the circular engaging body 34 is slidably engaged.

[0035] The engagement body 34 is movably engaged in an arc-shaped engagement hole 35 provided in the substrate 1. ing. This engaging body 34 is rotatably mounted on the lower surface of one side of the board 1 about a shaft 36. The rotary lever 37 is provided in a protruding manner on the upper surface of the rotary lever 37 (see FIG. 13).

[0036] A circular pressing body 38 is mounted on the top surface of the tip of the rotary lever 37 so as to be movable within a predetermined range. It is installed. This pressing body 38 presses the inside of the elongated hole 39 provided in the substrate 1 into the head mounting plate. It is exposed on the substrate 1 through a movable direction in the same direction as 6 (in the direction of arrows A and B). push The outer peripheral surface of the pressure body 38 comes into contact with the pressed portion 6a at the tip of the head mounting plate 6.

[0037] Then, as shown in FIG. 3, the engaging body 34 engages with the engaging side portion 33 of the forward blocking plate 31. While the rotation lever 37 is being rotated clockwise, the rotation lever 37 is kept rotated clockwise. Rotation of the movable lever 37 in the counterclockwise direction is prevented. Along with this, the pressing body 38 is held in the state of moving in the direction of arrow B, and the front of the head mounting plate 6 is moved in the direction of arrow A. The head mounting plate 6 is held at the stop position.

[0038] Furthermore, as shown in FIG. Then, rotation of the rotation lever 37 in the counterclockwise direction is permitted. For this reason, the head The mounting plate 6 moves forward in the direction of arrow A, and the pressing body 38 also moves in the direction of arrow A accordingly. When the playback position is reached, the rotary lever 37 rotates counterclockwise.

A rack 40 is fixed to the upper edge of the forward movement prevention plate 31 (see FIGS. 5, 6, 7, and 13). A final stage gear 41n of a gear reduction mechanism 41 meshes with this rack 40. The first stage gear 41 ₁ of this gear reduction mechanism 41 meshes with a pinion 43 fixed to a rotating shaft 42a of a loading motor 42 that can freely rotate in forward and reverse directions (see FIGS. 5 and 6).

[0040] The rotational force of the loading motor 42 is applied to the pinion 43 and the gear reduction mechanism 4. 1 and the rack 40 to the forward blocking plate 31, and this forward blocking plate 31 Move back and forth.

[0041] The gear reduction mechanism 41 includes one side wall 1a of the substrate 1 and an outer side wall 1a provided on the outer surface of the one side wall 1a. It is arranged between the side plate 44 and the side plate 44 . Further, the loading motor 42 is connected to the outer plate 4 It is fixed to the outer surface of 4.

[0042] A first engaging portion 45 is provided at the end of the rack 40, and a lifting control is provided opposite to the first engaging portion 45. A second engaging portion 46 is provided at the upper edge of the control plate 21 (Figs. 1 to 4 and 1 (See 3).

[0043] As shown in FIG. 8, it is rotatably attached. The other end of this rotating member 47 (rotating end) An insertion portion 49 made of an engagement pin is provided on the lower surface.

[0044] Then, the forward movement prevention plate 31 and the elevation control plate 21 move back in the direction of arrow D to return to the return position. When there is a gap between the first engaging part 45 and the second engaging part 46 as shown in FIGS. The insertion portion 49 of the rotating member 47 is inserted.

[0045] Therefore, when the forward movement prevention plate 31 moves forward in the direction of arrow C from the return position, the insertion portion 49 The elevation control plate 21 also moves forward by a predetermined stroke integrally with the forward movement prevention plate 31. Also, The rotating member 47 rotates counterclockwise as the forward movement blocking plate 31 moves forward. As a result, the insertion portion 49 is inserted between the first and second engaging portions 45 and 46 as shown in FIGS. 2 and 4. get out of the way.

[0046] Furthermore, the forward movement blocking plate 31 rotates as it moves backward in the direction of arrow D from the position where it has moved forward to the maximum extent. As the movable member 47 rotates clockwise, the insertion portion 49 is brought into first and second engagement. It is again inserted between parts 45 and 46.

[0047] The loading motor 42 inserts the tape cassette 8 into the cassette holder 11. It is rotated forward in relation to the operation, and reversed in response to the eject operation.

[0048] That is, when the tape cassette 8 is inserted to a predetermined position in the cassette holder 11, The slider 13 moves in the direction of the arrow C together with the tape cassette 8 to press and rotate the tape cassette 8. A switch pressing member 50 is mounted on the lower surface of the rotating plate 9 and is rotatable about a shaft 51. (See FIGS. 1, 2, 8, 9, and 11).

[0049] By rotating this switch pressing member 50 in the counterclockwise direction in FIG. A normally open loading motor that is turned on when pressed by this switch pressing member 50 A switch 52 is provided.

[0050] The switch pressing member 50 is moved in a clockwise direction (loading direction) in FIG. 1 by a spring 53. (a direction in which the motor switch 52 is not pressed).

[0051] Next, a tape cassette loading device of the present invention having the above configuration will be described. The operation of the precoder will be explained.

[0052] FIG. 1 shows the stopped state. In this state, as shown in FIGS. 3 and 5, the forward movement is blocked. Both the stop plate 31 and the elevation control plate 21 are in the return position, and the insertion portion 49 of the rotating member 47 is It is inserted between the first engaging part 45 and the second engaging part 46. Moreover, the engaging body 34 By engaging with the engagement side portion 33 of the forward blocking plate 31, the pressing body 38 moves in the direction of arrow B. direction, and the head mounting plate 6 is prevented from moving forward and held at the stop position. It is.

[0053] Furthermore, the engaging protrusions 27 and 28 of the cassette holder 11 are inserted into the guide hole 2 as shown in FIG. By being engaged with the horizontal parts 25a and 26a of 5 and 26, the rotating plate 9 and the cover are The set holder 11 is held in the raised position. Then, slide plate 19 and row The ding stopper 29 is in the state shown in FIG.

[0054] In this stopped state, the tape cassette 8 is inserted into the cassette holder 11. When the tape cassette 8 is inserted in the direction of arrow C from the cassette insertion/ejection opening 11a, the tape cassette 8 The tip end 13a of the slider 13 engages with one reel center hole 8a. like this After the state is reached, move the tape cassette 8 further inward to the cassette holder 11 as shown by the arrow. When the tape cassette 8 is inserted slightly in the C direction, the slider 13 moves along with the arrow C. By moving in the direction, the switch pressing member 5 is pressed by the slider 13. 0 rotates counterclockwise in FIG. 1 against the biasing force of the spring 53, and the loading mode The data switch 52 is turned on.

[0055] Note that when this slider 13 slides in the direction of arrow C, the rotating body 16 is Since the control plate 21 cannot be rotated unless it moves forward in the direction of arrow C, the rotation arm The spring 14 rotates counterclockwise in FIG. 1 while bending the torsion spring 17. .

[0056] By turning on the loading motor switch 52, the loading motor 42 rotates forward, and the rotational force of this motor 42 is transmitted through the pinion 43, gear reduction mechanism 41, and It is transmitted to the forward movement prevention plate 31 via the rack 40, and this movement movement prevention plate 31 moves in the direction of arrow C. Go to.

[0057] Further, the movement of the forward blocking plate 31 is controlled by a rotating portion between the first and second engaging portions 45 and 46. Because the insertion part 49 of the material 47 is inserted, the information is transmitted to the elevation control plate 21, and the front The advance prevention plate 31 and the elevation control plate 21 move forward in the direction of arrow C integrally with each other.

[0058] This forward movement of the elevation control plate 21 causes the slide plate 19 to move forward together with it. As a result, the rotating body 16 and the rotating arm 14 become integral with each other and rotate around the shaft 15. In FIG. 1, the tape rotates counterclockwise, and along with this rotation, the tape along with the slider 13 The cassette 8 moves forward in the direction of arrow C and is inserted into the cassette holder 11.

[0059] Then, the tape cassette 8 is placed at a predetermined position in the cassette holder 11, that is, at the playback position. As the tape cassette 8 is inserted to the upper position, the leading edge 8c of the tape cassette 8 It contacts the second contact portion 29b of the loading stopper 29. Then, this road The ring stopper 29 rotates clockwise in FIG. 7 against the biasing force of the torsion spring 55. The loading stopper 29 rotates in the direction shown in FIGS. 9 and 10, and the loading stopper 29 The slide plate 19 is not in contact with the first contact portion 29a.

[0060] Therefore, after this, the slide plate 19 is further moved in the direction of arrow C together with the elevation control plate 21. By moving the cassette holder 11 to the state shown in FIGS. 9 and 10, the cassette holder 11 is engaged. The mating protrusions 27 and 28 are engaged with the inclined parts 25b and 26b of the guide holes 25 and 26. . As a result, the rotating plate 9 rotates downward around the shaft 10, and the cassette holder 11 It descends while maintaining a horizontal state and reaches the state shown in FIG. And tape cassette 8 Both reel center holes 8a, 8b are engaged with corresponding reel receivers 3a, 3b as shown in FIG. and loaded into the tape playback position.

[0061] In this way, when the tape cassette 8 is loaded into the tape playback position, the When the switch is turned on, the tape drive motor 2 rotates, and with the power of this motor 2, The urging force for moving the head mounting plate 6 forward in the direction of arrow A is accumulated, and The reel receiver 2a and capstans 4a and 4b on the other side are rotated.

[0062] On the other hand, the forward movement prevention plate 31 moves in the direction of arrow C from the initial position together with the elevation control plate 21. Along with this movement, the rotating member 47 rotates counterclockwise in FIG. 1 . and, 2 and 4 when the tape cassette 8 described above is loaded into the tape playback position. As shown in FIG. It will be done. As a result, the interlocking relationship between the advance prevention plate 31 and the elevation control plate 21 is released, and the The lowering control plate 21 stops at that position, and only the forward movement prevention plate 31 is able to move forward independently. Become.

[0063] Then, when the forward movement blocking plate 31 alone moves forward in the direction of arrow C, the engaging body 34 moves forward. Disengage from the engagement side 33 of the forward blocking plate 31 and move the rotating lever 37 counterclockwise. rotation is allowed. Then, the head mounting plate 6 moves in the direction of the arrow due to the accumulated biasing force. The magnetic head moves forward in the A direction and reaches the tape playback position, as shown in FIGS. 2 and 4. 7 comes into contact with the tape of the tape cassette 8. At the same time, one pinch roller 5a It is pressed against the corresponding capstan 4a through the tape, and the tape is on the reel receiver 3b side. The reel is then run toward the reel receiver 3a and enters the reproducing state.

[0064] When the eject operation is performed at the end of playback, the loading motor 42 rotates in the reverse direction. The rotational force moves forward through the pinion 43, gear reduction mechanism 41, and rack 40. By being transmitted to the blocking plate 31, this forward blocking plate 31 independently moves in the direction of arrow D. Move back. Due to this backward movement of the forward movement blocking plate 31, the engaging body 34 moves through the inclined surface 33a. By engaging with the engaging side portion 33, the rotating lever 37 rotates clockwise around the shaft 36. Rotate in the direction. Along with this, the pressing body 38 pushes the head mounting plate 6 in the direction of arrow B. By pressing the head mounting plate 6, the head mounting plate 6 is moved back in the direction of arrow B, and the magnetic head is 7 and pinch rollers 5a, 5b are moved to positions outside the tape cassette 8.

[0065] On the other hand, the forward movement prevention plate 31 moves back in the direction of arrow D from the state shown in FIGS. 2, 4, and 6. 2, the rotating member 47 rotates clockwise around the shaft 48 in FIG. As a result, the insertion portion 49 is inserted between the first and second engaging portions 45 and 46 again. . At this time, the engagement protrusion of the elevation control plate 21 is formed on one side edge of the square hole 31a of the forward prevention plate 31. Due to the contact of the lifter 23b, the elevation control plate 21 moves back together with the forward movement prevention plate 31. It becomes possible to do so.

[0066] Therefore, the elevation control plate 21 moves back in the direction of arrow D together with the forward movement prevention plate 31. As a result, the engagement protrusions 27 and 28 of the cassette holder 11 align with the slopes of the guide holes 25 and 26. The portions 25b, 26b are engaged with the horizontal portions 25a, 26a. Along with this, the skein As the seat holder 11 rises while maintaining a horizontal state, the rotating plate 9 moves around the shaft 10. Rotate upward. As a result, the reel center holes 8a and 8b of the tape cassette 8 are opened. It comes off from the ball receivers 3a and 3b and is located above the playback position.

[0067] Note that after this elevation control plate 21 starts to move back together with the forward movement prevention plate 31, the rotation is stopped. Until the moving plate 9 rotates upward and the cassette holder 11 rises, the forward blocking plate The slide plate 19 moves back in the direction of arrow D together with the slide plate 31. The movement of 19 is not transmitted to rotating body 16.

[0068] Then, the elevation control plate 21 further moves back in the direction of arrow D together with the forward movement blocking plate 31. As a result, the rotating body 16 and the rotating arm 14 rotate clockwise around the shaft 15. do. Along with this rotation, the slider 13 moves back in the direction of arrow D, and the tape cassette 8 is pushed out from the cassette insertion/ejection opening 11a of the cassette holder 11 in the direction of arrow D, The stopped state is again shown in FIGS. 1, 3 and 5.

[0069] On the other hand, as described above, with the insertion of the tape cassette 8 into the cassette holder 11, , the loading motor 42 rotates, and the tape cassette 8 is loaded together with the slider 13. While the tape cassette is being drawn into the cassette holder 11 to a predetermined position, When the set 8 is pulled out of the cassette holder 11, the loading motor 42, as the elevation control plate 21 moves in the direction of arrow C, the elevation control plate 2 The front end corner 19a of the slide plate 19 that moves together with the slide plate 1 is shown in FIGS. 11 and 12. By coming into contact with the first contact portion 29a of the loading stopper 29, the Movement of the control board 21 in the direction of arrow C is prohibited.

[0070] Therefore, the engagement protrusions 27 and 28 of the cassette holder 11 fit into the guide holes 25 and 26. It cannot move to the inclined parts 25b, 26b and remains in the engaged position with the horizontal parts 25a, 26a. The state is maintained and the cassette holder 11 does not rotate downward. Please illustrate this situation. is detected by a detection means, and the loading motor 42 is reversed based on the detection signal. By rotating it, it can be returned to the initial stopped state.

[0071]

[Effect of the idea]

As described above, according to the tape cassette loading device of the present invention, the cassette pull until the loading slider pulls the tape cassette into place in the cassette holder. , the movement of the cassette holder elevation control plate is prohibited by the loading stopper. and the tape cassette is not pulled into the specified position within the cassette holder. As long as the cassette holder does not move to the playback position, the tape cassette is It seems like the tape cassette was pulled out while it was being pulled into the holder. In this case, the cassette holder will not move to the tape playback position.

[0072] Therefore, the cassette holder moves to the tape playback position while the cassette tape remains empty. There is no possibility that the tape cassette will become jammed and cause the device to malfunction.

[Brief explanation of drawings]

FIG. 1 is a plan view of a tape recorder equipped with a tape cassette loading device according to an embodiment of the present invention in a stopped state;

FIG. 2 is a plan view of the tape recorder in a playback state.

FIG. 3 is a plan view of the same tape recorder in a stopped state with the rotary plate and cassette holder removed.

FIG. 4 is a diagram similar to FIG. 3 of the playback state of the tape recorder.

FIG. 5 is a side view of the device in a stopped state.

FIG. 6 is a side view of the tape cassette of the same device in a reproducing state.

FIG. 7 is a side view showing a state in which the tape cassette of the device is being inserted.

FIG. 8 is a bottom view of the rotating plate of the device in a stopped state.

FIG. 9 is a bottom view of the rotary plate of the device in a regenerated state.

FIG. 10 is a perspective view of the main part of FIG. 8;

FIG. 11 is a view similar to FIG. 8 in a state in which the loading stopper of the device is functioning.

FIG. 12 is a perspective view of the main part of FIG. 10;

FIG. 13 is an exploded perspective view of a part of the tape cassette loading device of the same apparatus.

[Explanation of symbols]

8 tape cassette 11 Cassette holder 13 Slider for pulling in the cassette 21 Cassette holder elevation control board 29 Loading stopper 42 Loading motor 52 Motor switch

Claims (1)

[Scope of utility model registration request] Claim 1: By inserting a tape cassette into a cassette holder, the tape cassette moves a cassette retracting slider slightly in the cassette retracting direction,
The motor switch is turned on at the cassette retracting slider to rotate the loading motor in the forward direction, and the loading motor moves the cassette holder elevation control plate to further move the cassette retracting slider in the cassette retracting direction. In the tape cassette loading device, the cassette holder is moved from a cassette insertion/ejection position to a tape playback position after the tape cassette is pulled in to a predetermined position in the cassette holder by a slider. providing a loading stopper that prohibits movement of the cassette holder elevation control plate until the tape cassette is pulled into a predetermined position within the cassette holder;
A tape cassette loading device characterized in that the tape cassette drawn into the predetermined position is brought into contact with the loading stopper to release the prohibition of movement of the cassette holder elevation control plate by the loading stopper.