JPH0430694Y2 - - Google Patents

Description

[Detailed explanation of the idea] Hereinafter, the present invention will be explained in the following order.

A. Field of industrial application B. Overview of the invention C. Conventional technology D. Problem that the invention attempts to solve E. Means for solving the problem F. Effect G. Example G-1 Tape cassette (Figs. 11 to 14)
Figure) G-2 PCM equipped with tape cassette transfer device
Audio tape recorder (Fig. 2) G-3 Tape cassette transport body (Figs. 1, 3 to 6) G-3a Transport body (Figs. 3 and 6) G-3b Cassette holder (Fig. 3) (Figures 5 and 6) G-3c Cassette holder support mechanism (1st
(Figures 3 and 5) G-3d Cassette pressing operation mechanism (Figures 3 and 6) G-3e Holder frame (Figures 3 and 6) G-3f Other mechanisms of the transfer body ( (Figures 3 and 6) G-4 Cassette retraction and loading operation mechanism (Figures 4 and 6) G-5 Tape cassette loading operation (Figures 4 and 5 to 10) G-5a Tape Cassette pull-in operation G-5b Tape cassette mounting operation to the tape cassette mounting position G-5 Tape cassette ejection operation H Effect of the invention A Industrial application field The present invention is suitable for magnetic recording and reproducing devices such as cassette-type tape recorders. In particular, the tape cassette mounting device is supported so as to be movable in the horizontal direction between a tape cassette insertion/removal position and a tape cassette retraction position where the tape cassette can be loaded into the tape cassette mounting position within the main body of the device. A cassette holder for holding the tape cassette is supported on the conveying body so as to be movable up and down in a direction substantially perpendicular to the moving direction of the conveying body, and after the conveying body reaches a retracted position, the cassette holder is lowered. The present invention relates to a tape cassette mounting device for a magnetic recording/reproducing apparatus, which operates to mount the tape cassette at the tape cassette mounting position.

B. Overview of the invention The present invention is based on a conveying body that is supported horizontally so as to be movable between a tape cassette insertion/removal position and a tape cassette retraction position that allows the tape cassette to be loaded into the tape cassette mounting position. A cassette holder that holds the tape cassette is supported so as to be movable up and down in a direction substantially perpendicular to the moving direction of the transport body, and after the transport body reaches the retracted position, the cassette holder is lowered to remove the tape cassette. A tape cassette loading device for a magnetic recording and reproducing device which is operated to load the tape cassette at a tape cassette loading position within the device body, wherein cassette holder support arms are integrally provided at both ends of a connecting plate, and the cassette holder support arms are rotatably attached to the transport body. The cassette holder is rotatably supported by the rotary support member, which is freely supported and is rotatably biased toward the raised position by the biasing means, and the cassette holder of the rotary support member The cassette holder support arm supporting the cassette holder is rotatably supported at the end opposite to the supporting side of the cassette holder, and is biased to rotate via a biasing means such as a spring having a limit mechanism. A vertically movable cassette holder is installed by attaching an operated plate that can rotate integrally with the above-mentioned cassette holder rotation support member, and pressing the operated plate with a vertically movable operating member provided on the main body of the device. By rotating the rotation support member against the biasing force of the biasing means and lowering the cassette holder toward the tape cassette mounting position within the main body of the apparatus, the cassette holder The cassette holder is lowered by pressing an operated plate attached via a biasing means such as a spring having a limit function. This prevents excessive pressing by the vertically movable operating member during the lowering operation of the cassette holder, thereby protecting the tape cassette and the tape cassette support mechanism within the apparatus main body to which the tape cassette is mounted.

C. Prior Art Conventionally, in a magnetic recording/reproducing device such as a cassette type tape recorder, a cassette holder for holding a tape cassette is attached to a conveying body that is movable horizontally inside and outside the main body of the device, and the cassette holder is attached to a conveying body that is movable horizontally in the inside and outside of the main body of the device. The cassette is attached so as to be movable in an approximately orthogonal vertical direction, and is pulled into the apparatus main body together with the cassette holder. After the cassette holder reaches a position corresponding to the cassette installation position within the apparatus main body, the cassette is removed. A so-called tray type tape cassette loading device has been proposed in which a tape cassette held by a cassette holder is loaded into the cassette loading position by lowering the holder relative to the carrier.

As this type of tape cassette mounting device, the applicant of the present application has proposed one as described in the specification and drawings of Japanese Patent Application No. 123697/1982.

The tape cassette mounting device proposed here is
A carrier is attached so as to be horizontally movable inside and outside of a casing constituting the tape recorder main body, and a cassette holder for holding a tape cassette is supported on this carrier by a pair of left and right opening/closing arms. One end of one arm of each pair of opening/closing arms is connected to one end of a pair of cassette holder support arms connected by a connecting rod, and each pair of left and right opening/closing arms are configured to open and close in conjunction with each other. A tension spring tensioned between one arm and one of the cassette holder support arms rotates and biases the cassette holder in the direction of opening the legs, raising the cassette holder to a raised position at approximately the same height as the transport body. It maintains the bias.

When the carrier reaches the retracted position within the apparatus main body, the slider plate associated with the opening/closing arm is operated to close the opening/closing arm, and the cassette holder is moved relative to the carrier. The tape cassette held in the cassette holder is lowered and the tape cassette held in the cassette holder is mounted at a cassette mounting position within the main body of the apparatus.

D. Problems to be Solved by the Invention The tape cassette mounting device configured as described above supports a cassette holder with a pair of opening/closing arms on the left and right sides, and supports a pair of cassette holders connected to these opening/closing arms by a connecting rod. Since the cassette holder is connected to the arm and opened and closed at the same time, the mechanism for supporting the cassette holder so as to be movable in the vertical direction substantially perpendicular to the direction of movement of the carrier becomes complicated.

In other words, in order to support the cassette holder vertically with respect to the transport body, six arms are required, and in addition, a large number of pivot pins, etc. are required to pivot each arm so that it can be opened and closed or rotated. This requires a large number of parts, and the configuration when these arms are combined becomes complicated.

Therefore, the present invention was designed to simplify the mechanism for vertically movably supporting the cassette holder with respect to the carrier, and to prevent excessive pressing by the means for lowering the cassette holder when the cassette holder is lowered. preventably;
This invention has been proposed for the purpose of providing a tape cassette loading device for a magnetic recording/reproducing device which is designed to protect the tape cassette and the tape cassette support mechanism within the device body into which the tape cassette is loaded.

E. Means for Solving the Problems The present invention aims to solve the problems of the device previously proposed by the applicant and to achieve the above-mentioned purpose. The tape cassette is moved vertically in a direction substantially orthogonal to the direction of movement of the tape cassette, which is supported on a transport body that is horizontally movable between the tape cassette retraction positions and allows the tape cassette to be loaded into the mounting position. A magnetic device supports a cassette holder that holds the tape cassette, and after the transport body reaches the retracted position, lowers the cassette holder to mount the tape cassette at a tape cassette mounting position within the main body of the apparatus. A tape cassette mounting device for a recording/reproducing device, wherein cassette holder support arms are integrally provided at both ends of a connecting plate, and are rotatably supported by the carrier and rotated in the direction of a raised position by a biasing means. The cassette holder is rotatably supported by a cassette holder rotation support member attached under pressure, and at least one of the cassette holder support arms that supports the cassette holder of the cassette holder rotation support member. The cassette holder rotation support member is rotatably supported at the end opposite to the supporting side of the cassette holder, and is rotatably biased by a biasing means such as a spring having a limit mechanism, and is rotatable integrally with the cassette holder rotary support member. By attaching an operating plate and pressing the operated plate with a vertically movable operating member provided on the apparatus main body side, the cassette holder rotating support member is rotated against the urging force of the urging means. The cassette holder is moved downward to the tape cassette mounting position within the main body of the apparatus.

F. Function The present invention provides cassette holder support arms integrally at both ends of the connecting plate, and extends between the tape cassette insertion/removal position and the tape cassette retraction position where the tape cassette can be loaded into the tape cassette loading position. A configuration in which a cassette holder that holds a tape cassette is supported by a cassette holder rotation support member, which is formed by integrally providing cassette holder support arms at both ends of a connecting plate, on a conveying body that is attached and supported so as to be movable in the horizontal direction. Therefore, the mechanism for vertically movably supporting the cassette holder with respect to the carrier can be simplified.

Further, the cassette holder rotation support member is rotatably supported by an end of at least one of the cassette holder support arms facing the support side of the cassette holder, and is rotationally biased via a biasing means. An operation plate is attached so as to be rotatable integrally with the cassette holder rotation support member, and a vertical movement operation member for pressing the operation plate is provided on the main body side of the apparatus, and the operation plate is operated by pressing the operation plate using the vertical movement operation member. By pressing the plate, the cassette holder rotation support member is rotated against the biasing force of the biasing means, and the cassette holder is lowered to the tape cassette mounting position within the apparatus main body. During this lowering operation, the biasing means functions as a limiter to prevent excessive pressing by the vertically moving operating member.

G. Embodiment Hereinafter, a specific embodiment of a tape cassette mounting device in a magnetic recording/reproducing apparatus according to the present invention will be described with reference to the drawings.

In the following explanation, the reel shaft is movably attached to the bottom side of the cassette case, and is in a position to block the insertion hole for inserting the reel shaft that engages with the tape reel formed on the bottom side of the cassette case. A sliding plate that is locked by a locking means provided on the bottom surface of the cassette case, and is moved to a position where the insertion hole is opened by relative movement of the cassette case when the locking by the locking means is released. An example will be described in which a tape cassette equipped with a PCM (Pulse Code Modulation) audio tape cassette is applied to a cassette-type tape recorder that uses a PCM (Pulse Code Modulation) audio tape cassette as a recording medium.

G-1 Tape cassette (Figures 11 to 14)
(Fig.) Prior to describing a specific embodiment of the tape cassette mounting device according to the present invention, a tape cassette that is operated to be mounted at a tape cassette mounting position within a tape recorder main body by a lever device will be explained.

This tape cassette 1 is shown in FIGS. 11 and 12.
As shown in the figure, it has a cassette case 2 formed by butting together upper and lower halves 3 and 4.

A pair of tape reels 6 and 7 are rotatably supported within the cassette case 2, and a magnetic tape 5 is wound between these tape reels 6 and 7. A front cover 9 is rotatably attached to the front side of the cassette case 2 from which the magnetic tape 5 is pulled out, and covers the front side of the cassette case 2 when the magnetic tape 5 is not inserted or mounted in the tape recorder and is not in use. This is intended to protect the magnetic tape 5.

Also, on the bottom side of the cassette case 2, there is a first
As shown in FIGS. 2, 13, and 13, a sliding plate 10 that closes a pair of insertion holes 8, 8 for inserting a reel shaft formed in the bottom of the cassette case 2 when not in use is moved forward and backward. It is attached so that it can slide freely in the direction. This sliding plate 10 is formed in a U-shape so that it can cover both sides from the bottom of the cassette case 2, and covers opposing side plate parts 12, 12 of the bottom part 11.
The cassette case 2 is slidably attached to the cassette case 2 in the front-rear direction by engaging guide grooves 14 provided on both sides of the cassette case 2 with guide protrusions 13, 13 protruding from the cassette case 2, respectively. As shown in FIG. 12, a pair of projecting pieces 15 are provided on the front edge of the sliding plate 10, and when the sliding plate 10 is biased and moved by a torsion spring 18, which will be described later, the cassette case 2 is moved. It is locked to the front side and restricts the movement position. Note that cutouts 9a, 9a are formed at the lower edge of the front cover 9 corresponding to the protrusions 15, 15, which serve as escape parts when the cassette case 2 moves relative to the sliding plate 10. .

Further, as shown in FIG. 13, the rear side portion of the magnetic tape 5 pulled out from the cassette case 2 and stretched along the front side of the cassette case 2 allows the magnetic tape 5 to be moved in a predetermined tape running direction as shown in FIG. A space 16 for inserting a tape loading mechanism is formed into which a tape loading mechanism provided on the tape recorder side that guides the tape recorder to be pulled out from the passage enters. A torsion spring 18 is attached to one side of this space 16 via a column 17, and one end of this torsion spring 18 engages with a spring hook 19 protruding from the front edge of the sliding plate 10. Sliding plate 1
0 to the front of the cassette case 2 which closes the space 16 and the insertion holes 8, 8.

Furthermore, a pair of through holes 20, 20 are formed in the bottom surface 11 of the sliding plate 10, and when the sliding plate 10 is retreated, the through holes 20, 20, as shown by the two-dot chain line in FIG. The holes 20, 20 are aligned with the insertion holes 8, 8 formed in the bottom plate of the lower half 4, so that a reel shaft for driving a reel provided in the PCM audio tape recorder can enter into the cassette case 2. ing. And sliding plate 1
0 is moved forward, as shown in FIG.
When the lower surface side of the space 16 of the cassette case 2 is closed, the positions of the through holes 20, 20 of the sliding plate 10 and the insertion holes 8, 8 of the lower half 4 are shifted from each other. , 8 are closed by the bottom plate portion 11 of the sliding plate 10.

Further, on both sides of the front side of the bottom plate portion 11 of the sliding plate 10, locking means for releasing the locking means of the sliding plate 10 formed on the bottom plate of a cassette holder provided on the tape recorder side, which will be described later, are provided. Shallow grooves 22, 22 are respectively formed into which the protrusions serving as lock release means enter. These shallow grooves 22, 22 are formed by opening the front edge of the sliding plate 10 in the front-back direction of the sliding plate 10. In each of the shallow grooves 22, 22, a sliding plate 10 is attached to the cassette case 2.
The cassette case 2 is a locking means for locking the sliding plate 10 in a closed position in which the opening 16 and the insertion holes 8, 8 are closed, and in an open position in which the opening 16 and the insertion holes 8, 8 are opened. Lock piece 2 provided
Engagement holes 26, 26 and engagement notches 25, 25 are formed in which the engagement protrusions 24, 24 of 3 and 23 engage, respectively.

As shown in FIG. 14, the locking pieces 23, 23 are formed with U-shaped grooves in the bottom plate of the lower half 4 constituting the cassette case 2, so that the rear end portions are attached to the bottom plate of the lower half 4. The front end portion is connected to the front end portion and extends in the front-rear direction so as to be flexible, and hemispherical engagement protrusions 24, 24 are integrally formed on the lower surface of the front end portion.

Then, as shown in FIGS. 12 and 14,
When the sliding plate 10 is closed, the locking pieces 23, 2 are inserted into the engagement holes 26, 26 provided in the sliding plate 10.
The engaging protrusions 24, 24 at the three tips engage with each other,
The sliding plate 10 is locked so that it does not move toward the open position. In this state, each of the engagement protrusions 24 projects downward from each of the engagement holes 26, 26, but does not protrude from within the shallow grooves 22, 22.

G-2 PCM equipped with tape cassette transfer device
Audio Tape Recorder (Fig. 2) A PCM audio tape recorder into which the tape cassette 1 configured as described above is mounted and the tape cassette mounting device according to the present invention is incorporated is as follows:
As shown in FIG. 2, an outlet 32 is provided on the front side of the casing 31 constituting the main body of the tape recorder. A conveying body 33 is horizontally moved between a position where the tape cassette can be inserted and removed and a tape cassette retracting position that allows the tape cassette to be attached to the tape cassette attachment position in the housing 31, and the conveying body 33 is movable vertically. The cassette holder 34 and the vertically movable transport body 3 supported by
A cassette transport body 36 including a holder frame 35 attached to the holder frame 3 is attached thereto.

G-3 Tape cassette transport body (Figs. 1, 3 to 6) The cassette transport body 36 constituting the present invention is supported by the transport body 33 and the transport body 33 so as to be vertically movable, as described above. It consists of a cassette holder 34 and the holder frame 35.

G-3a Transport body (FIGS. 3 and 6) As shown in FIG. a front plate 39 to be attached;
It consists of an upper surface plate 40 that is attached across the upper surface side of the middle part of the rear side of the side plates 37 and 38, and is configured to form a rectangular frame as a whole. On the rear outer surfaces of the pair of side plates 37 and 38, a pair of guide shafts 42 are mounted parallel to each other on a chassis board 41 into which various mechanical parts disposed inside the housing 31 are incorporated. Slide guide blocks 44 and 45, which are inserted through the holes 43, are attached. The carrier 33 is slidably attached to the inside and outside of the housing 31 by inserting and supporting the slide guide blocks 44 and 45 on the guide shafts 42 and 43.
Of the slide guide blocks 44 and 45, the slide guide block 45 located on the right side in FIG. 6 has an insertion hole positioned with high precision so that it can be positioned and supported with respect to the guide shaft 43. 45a, and one slide guide block 44 is inserted into the fitting recess 44 so as to absorb the mounting error with respect to the guide shaft 42.
It is supported through a.

In this way, the slide guide blocks 44, 45
The carrier 33 attached to the guide shafts 42 and 43 via the chassis board 41 is slid into and out of the housing 31 via a traveling mechanism 47 driven by a loading motor 46 attached to the chassis board 41. Ru. This running mechanism 47 winds a wire 47a between a pulley 48a provided integrally with a feed gear 48 pivoted at the rear end of one side of the chassis board 41 and a wire pulley 49 pivoted at the front end. The end portion of the wire 47a is locked to a wire hooking piece 51 attached to the carrier 33. Note that a tension spring 50 for tension adjustment is connected between one end of the wire 47a and the wire hooking piece 51. In addition, the loading motor 4
6 and the traveling mechanism 47 are an intermediate gear 52 that meshes with the feed gear 48 and the loading motor 4.
A connecting belt 53 is stretched between the pulleys attached to the drive shaft of No. 6 to connect them.

The transport body 33 is driven by the loading motor 46, so that the guide blocks 44, 45 come into contact with the guide shaft support pieces 54, 54 on the front side that support the guide shafts 42, 43. The pulled out position from the housing 31 where the sliding position is regulated and the guide blocks 47, 4
8 is moved between the retracted positions drawn into the casing 31 where the sliding position is regulated by contacting the rear guide shaft support pieces 55, 55 that support the guide shafts 42, 43. .

G-3b Cassette holder (Figs. 3, 5, and 6) The transport body 33, which is operated by the loading motor 46 as described above, holds the tape cassette 1 described above. In the moving direction of the transport body 33, between a raised position where the tape cassette 1 can be transferred in and out of the housing 31 and a lowered position where the tape cassette 1 can be attached to a cassette mounting position provided inside the housing 31. A cassette holder 34 is mounted so as to be movable up and down in substantially orthogonal directions. This cassette holder 34 is constructed by forming rising walls 57 and 58 on both sides of a mounting plate 56 on which the tape cassette 1 is mounted.
The mounting plate 56 is provided with through holes 59, 59 through which reel shafts are inserted, which are provided at the tape cassette installation position in the tape recorder main body and which engage the tape reels 6, 7 of the tape cassette 1. has been done. Further, on both sides of the rear end edge of the mounting plate 56, projections 15, 15 are provided on the sliding plate 10 of the tape cassette 1 so as to project slightly rearward, and the sliding plate 10 is moved. A pair of sliding plate locking pieces 60, 60 are formed in an upright manner to restrict the movement. Furthermore, the sliding plate 1 of the tape cassette 1 is located at a position on the rear edge of the mounting plate 56 that is closer to the respective rising walls 57 and 58 from the sliding plate locking pieces 60 and 60, respectively.
protrusions 61 for pressing and operating the locking pieces 23, 23 provided on the cassette case 2 for locking the cassette case 2;
61 is formed.

G-3c Cassette holder support mechanism (Fig. 1,
(Figs. 3 and 5) The cassette holder 34 formed in this way
A pair of cassette holder support arms 63 and 64 are connected to both ends of the connecting plate 62 so as to be perpendicular to the connecting plate 62 and parallel to each other to form a substantially H-shape as shown in FIG. The cassette holder is vertically movably supported by the transport body 33 via a cassette holder rotation support member 65. This cassette holder 3
Cassette holder rotation support member 65 supporting 4
is a rotary support piece 6 protruding from the lower end of each cassette holder support arm 63, 64 near the connecting plate 62.
Through holes 68, 68 drilled in holes 6, 67, respectively, are pivoted to support pins 69, 69 protruding from the inner surfaces of the side plates 37, 38 of the carrier 33, respectively, so that the carrier 33 can be rotated. Possibly supported.
This cassette holder rotation support member 65 is supported by a support pin 6 protruding from one side plate 37 of the conveyor 33.
A torsion coil spring 70 fitted in the carrier 9 is biased to rotate toward the raised position, which is the upper side of the carrier 33 . The torsion coil spring 70 has one end 70a.
is inserted and locked into a locking hole 37a formed in the side plate 37, and the other end is connected to one of the cassette holder support arms 63 of the cassette holder rotation support member 65.
The cassette holder rotation support member 65 is rotated toward the raised position by being engaged with a locking piece 63a protruding from the side of the cassette holder. Then, the torsion coil spring 7 of the cassette holder rotation support member 65
0, each cassette holder support arm 63, 64 is in a rotationally biased position with
Bending pieces 37a, 38 formed by bending on the upper end side of 38
a, and the connecting plate 62 abuts against the top plate 40 of the carrier 33, thereby being regulated.

Incidentally, the cassette holder 34 is rotatably supported by the upright walls 57 and 58 being pivotally supported at the tips of the cassette holder support arms 63 and 64 of the cassette holder rotation support member 65.

That is, the cassette holder 34 moves the link levers 71 and 72 that support the pressure rollers 77 and 77 that press and support the tape cassette 1 placed on the cassette holder 34 to the respective upright walls 57 and 58 of the cassette holder 34. An insertion hole 63 is formed at the tip of the cassette holder support arms 63, 64 of the cassette holder rotation support member 65 to accommodate pivot pins 73, 73 on the outer surface, respectively.
b, 64b and is rotatably supported.

The cassette holder 34 also has a rotation regulating pin 79 protruding from the outer surface of the lower end of the other rising wall 58 located on the right side in FIG. 3 and shifted forward from the pivot pin 73. The transport body 33 is supported by the cassette holder rotation support member 65 by being engaged with a rotation restriction guide groove 78 formed slightly curved in the height direction of the other side plate 38 of the conveyor 33 .

The cassette holder 34, which is supported by the cassette holder support arms 63 and 64 via the pivot pins 73 and 73 and is attached by engaging the rotation restriction pin 79 with the rotation restriction guide groove 78, is attached to the cassette When the holder rotation support member 65 is rotated, the rotation restriction pin 79 is guided by the rotation restriction guide groove 78, so that rotation about the pivot pins 73, 73 is restricted. Ru. Therefore, the cassette holder 34 can be moved vertically parallel to the conveyor 33 while maintaining a horizontal state.

Note that the rotation regulating pin 79 and the rotation regulating groove 7
8 may be provided on both sides of the cassette holder 34 so as to support and guide the cassette holder 34 from both sides during vertical movement, thereby maintaining a more stable horizontal state.

By the way, the rising wall 5 of the cassette holder 34
In the middle of the link levers 71, 72, which are pivotally supported by the support shafts 74, 74 set up on the vertical walls 7, 58, there are through holes 75, 75 having a long diameter extending in the height direction of the rising walls 57, 58. Support shafts 74, 74 for mounting rollers are inserted into the cassette holder 34 and have their tips protruding inwardly from the cassette holder 34. Further, the link levers 71 and 72 are connected to the pivot pin 73,
The pivot pins 73,
The cassette holder 34 is biased to rotate around the cassette holder 73 toward the mounting plate 56 side.

The cassette holder 34 is attached to the inwardly protruding tips of the support shafts 74, 74 set on the link levers 71, 72.
Pressing rollers 77, 77 are attached to press and hold the tape cassette 1 held above. The gap between these pressure rollers 77, 77 and the mounting plate 56 is as follows:
The thickness of the tape cassette 1 is slightly smaller than that of the tape cassette 1 inserted and held in the holder 34 in this gap, and when the tape cassette 1 is inserted, the link lever 71,
72 is rotated against the urging force of the tension springs 76, 76, so that the pressure rollers 77,
The tape cassette 1 can be inserted between the pressure roller 77 and the mounting plate 56, and the pressure roller 77,
The tape cassette 1 is pressed and held by the tape cassette 77.

In addition, the cassette holder rotation support member 65
A vertical movement operation member, which will be described later, which rotates the cassette holder rotation support member 65 acts on the rear end of one of the cassette holder support arms 62 that faces the side that supports the cassette holder 34. The roughly L-shaped operated plate 80 connects the proximal bent portion to the cassette holder support arm 62.
It is attached to be pivoted on a support shaft 80a that is erected on the shaft. The operated plate 80 has one end protruding from a pressing pin 81 serving as a pressing portion of the vertically movable operating member, and is engaged with a locking portion 82 formed by bending the upper part of the rear end of one of the cassette holder support arms 63. A limiter spring 83, which is a biasing means having a limit function and stretched between the cassette holder support arm 62 and the other end, rotates toward the locking portion 82 in the direction of arrow A in FIG. It has been installed. The operated plate 80 , which is attached while being rotationally biased by the limiter spring 83 , is rotatably supported by the carrier 33 when pressed against the biasing direction of the limiter spring 83 . It is rotated integrally with the cassette holder rotation support member 65. When a load is further applied to rotate the operated plate after the rotational position of the cassette holder rotation support member 65 has been restricted, the limiter spring 83 expands to absorb the load.

G-3d Cassette pressing operation mechanism (Figs. 3 and 6) As described above, the cassette holder 34 is movable up and down via the cassette holder rotation support member 65.
On the front plate 39 of the conveying body 33 supporting the conveying body 33, the conveying body 33
Tape cassette temporary mounting part 105 extends from the holder frame 35 attached to the cassette holder 34 to the cassette temporary mounting part 105.
The tape cassette 1 inserted into the transport body 3
A cassette pressing operation mechanism 84 is provided for moving the cassette relative to the mounting plate 56 of the cassette holder 34 as the cassette is transferred into the housing 31 of No. 3. This cassette pressing operation mechanism 84 moves the tape cassette 1 inserted into the tape cassette temporary mounting section 105 onto the cassette holder 34, so that the protrusions 15, 15 of the sliding plate 10 provided on the tape cassette 1 Sliding plate locking piece 60 of cassette holder 34,
60, and the first and second shafts are pivoted on support shafts 85 and 86, respectively, which are set up in parallel at the center of the front plate 39 in the width direction. 2 cassette push lever 8
7,88. The first cassette pushing lever 87 has a pivot portion 89 connected to the one support shaft 85 approximately in the center, and a cassette pushing pin 9 at one end side around this pivot portion 89.
0 is planted, and the other end thereof is configured by extending a rotation operation piece 92 which is rotated by relatively abutting against an abutment piece 91 attached to one side of the front end side of the chassis board support shaft 1. . The second cassette pushing lever 88 has a pivot 93 connected to the other support shaft 86 at its base end, and a cassette pushing pin 94 at its distal end. Pivot parts 89 of these first and second cassette push levers 87, 88,
Gear parts 95 and 96 that mesh with each other when pivoted on the support shafts 85 and 86 are formed around the outer periphery of the support shaft 93 .

The first and second cassette pushing levers 87, 88 each have a cassette pushing pin 90,
94 are respectively located on both sides of the front plate 39,
The gear parts 95 and 96 are engaged with each other to form the pivot part 8.
9 and 93 are pivotally supported on support shafts 85 and 86 as shown in FIG. Also, the cassette pressing pin 90 of the first cassette pressing lever 87
A spring locking piece 97a is attached to one side of the one end where the
is provided protrudingly, and one end of the push lever return spring 97 is locked to the front plate 39, and the other end of the push lever return spring 97 is locked.
This pushing lever return spring 97 causes the gear part 9
The first and second cassette pushing levers 87 and 88, which are connected by meshing the cassette pushing pins 90 and 96, are biased to rotate in a direction that causes the cassette pushing pins 90 and 94 to escape to the outside of the conveyor 33. In addition, the above-mentioned front plate 3
9 has a first cassette pushing lever 87 at the front end.
A rotation regulating piece 98 with which one end abuts is formed in an upright manner, and the first
Also, the rotation return position of the second cassette push levers 87, 88 is regulated.

G-3e Holder frame (Figs. 3 and 6) Also, the transport body 33 that constitutes the transport body 36 described above
A holder frame 35 is attached to the front plate 39 so as to cover the front plate 39 portion. The holder frame 35 includes a front frame portion 100 formed in a size substantially equal to the drawer opening 32 formed in the casing 31, and side frame portions 101, 101 provided perpendicularly to both sides of the front frame portion 100. The first and second cassette pushing levers 8 are provided along the side frame portions 101, 101.
A bottom plate 103 is provided in which cassette pressing pins 90 and 94 of 7 and 88 protrude, and arcuate long holes 102 and 102 are formed in which these cassette pressing pins 90 and 94 rotate.

In the holder frame 35 configured in this way, the front frame portion 100 is fitted to the front plate 39 of the carrier 33, and the side frame portions 101, 101 are fitted to the side plates 37, 37 of the carrier 33,
38 and is attached to the bottom plate 103,
The portion 103 and the front end portion of the cassette holder 34 constitute a temporary attachment portion 105 of the tape cassette 1.

G-3f Other mechanisms of the transport body (Figures 3 and 6)
(Figure) Furthermore, on one side of the rear end side of the front plate 39 constituting the carrier 33, the carrier 33 faces the mounting side of the abutment piece 91 of the chassis board 41 drawn into the housing 31. Positioning fitting body 99 provided on the other side
When the fitting block 107 that fits into the positioning fitting body 99 is attached and the carrying body 33 is pulled into the housing 31, the fitting block 107 fits into the positioning fitting body 99. Swinging is prevented and positioning with respect to the chassis base plate 41 is achieved.

Further, on the top plate 40 constituting the carrier 33, when the carrier 33 is pulled out of the housing 31 from the position where it is pulled inward, the cassette body of the tape cassette 1 is displayed. As shown in FIGS. 3 and 6, the cassette main ejection lever 108, which is operated by pressing the tape cassette 1 to move the tape cassette 1 to the temporary attachment section 105, is connected to the lever support pin 1 as shown in FIGS. 3 and 6.
It is rotatably attached via 09. This cassette main body ejection lever 108 is erected so that a cassette pressing pin 110 hangs down from one end, and the other end of this lever 108 and one side plate 37 of the carrier 33
A cassette pressing pin 110 at one end is rotated and urged to escape to the outside of the cassette holder 34 by a tension spring 111 stretched therebetween. In addition, the cassette main body ejection lever 108
The contact pin 113 planted on the protrusion 112 protruding from the other end is connected to one guide shaft 4 of the chassis board 41.
2 is brought into contact with the inclined guide surface 115 of the rotation operation block 114 attached to the side where the rotation operation block 114 is attached. Then, in the process of the conveyor 33 being pulled out of the housing 31 from the retracted position inside the housing 31, the abutting pin 113 is moved toward the inclined guide surface 1.
15, the cassette body ejection lever 108 releases the tension spring 11.
1, the cassette pressing pin 110 at one end projects into the cassette holder 34, and the tape cassette 1 held on the cassette holder 34 is moved to the temporary mounting position.

A lock lever, which will be described later, engages with the inner surface of one side plate 37 of the carrier 33 when the carrier 33 reaches the retracted position, and acts to lock the carrier 33. The torsion coil spring 116 constituting the engaged portion is attached to the carrier 33.
It is fitted into a fitting protrusion 37b formed by cutting out a part of the bent piece 37a of one side plate 37.

G-4 Cassette retraction and mounting operation mechanism (Figs. 4 and 6) On the side of the chassis board 41 to which the transport body 36 configured as described above is attached, the transport body 36 has a retracting position inside the casing 31. The cassette case 2 of the tape cassette 1 held on the cassette holder 34 is moved relative to the sliding plate 10, and the insertion holes 8, 8 for inserting the reel shaft are opened. A cassette retracting and mounting operation mechanism is provided for mounting the tape cassette 1 with the tape cassette 8 open at a tape cassette mounting position within the housing 31.

This cassette retracting and mounting operation mechanism includes a cam gear 122 that is rotationally driven by a drive motor 120 and has a substantially spiral cam groove 121 on one main surface, and a small diameter gear portion that is integrally formed with the cam gear 122. A plate-shaped slider member 1 is engaged with a rack gear 124 formed on one side of the slider member 123, and is moved and operated by the rotational drive of the cam gear 122.
25, and a cassette holder 34 which is moved by the rotation of the cam gear 122 and rotated in a direction perpendicular to the moving direction of the conveyor 33 by the movement of the slider member 125.
When the conveying body 33 reaches the retracting position by being rotated by the movement of the cassette retracting lever 126, which is a cassette retracting member that engages with the cassette case 2 of the upper tape cassette 1, and the slider member 125. A lock lever 127 is a locking member that engages with the engaged portion 116a at one end of the torsion coil spring 116 provided on the carrier 33 to lock the carrier 33 in the retracted position, and when the carrier 33 reaches the retracted position, the tape is removed. After the insertion holes 8, 8 for inserting the reel shaft of the cassette 1 are opened, the vertical movement operation member is rotated by the moving operation of the slider member 125 and lowers the cassette holder 34 to the tape cassette mounting position side. 128.

The cam gear 122 is attached via a support shaft 129 set up on the chassis board 41, and has a large diameter formed on the outer periphery of the motor pulley 130 fitted to the motor shaft of the drive motor 120 and the cam gear 122. A pulley 133 fitted onto a gear shaft of a worm gear 132 that meshes with a gear portion 131
A belt 134 is fitted between the drive motors 120 and 120.
and is rotationally driven by this drive motor 120.

Further, the slider member 125 connects the rack gear 124 to the small diameter gear portion 123 of the cam gear 122.
The slider member 125 can be mounted by engaging a pair of slide guide shafts 135, 136 planted in the chassis base plate 41 with long slide guide holes 137, 138 bored in the longitudinal direction of the slider member 125. As a result, the transport body 33 is guided by the slide guide shafts 135 and 136 and moved in the same direction as the movement direction of the transport body 33 due to the rotational drive of the cam gear 122.

Furthermore, the cassette retraction lever 126
A cassette engaging piece 139 is provided on the tapered distal end side to engage with the rear corner portion of the cassette case 2 of the tape cassette 1 held on the cassette holder 34, and the cassette engaging piece 139 a retractable slider which is formed by providing an operating piece 140 that is extended and placed so as to ride on the slider member 125, and which is attached to the lower side of the chassis base plate 41 so as to be movable in the same direction as the moving direction of the carrier 33; Pivot pieces 145, 145, which are bent to hang down on both sides of the proximal end, are pivotally attached to a rotating shaft 144, which is attached between the rising support pieces 142, 142 formed on both sides of the distal end of the plate 141. It will be done. That is, the cassette retraction lever 126
The cassette engaging piece 139 at the tip extends over the cassette holder 34 that has reached the retracted position, and the transport body 3 is rotated about the rotation shaft 144.
It is rotatably supported in a direction perpendicular to the moving direction of No. 3. In addition, the cassette retraction lever 126 is
A spring locking piece 1 protrudes into a notch hole 147 formed in the middle of the cassette retraction lever 126.
48 and the front end of the retractable slider plate 141.
9 rotates the cassette locking piece 139 at the tip in a direction away from the cassette holder 34.

By the way, the cassette retraction lever 126
The operating piece 140 is connected to the carrier 3 as shown in FIG.
While the tape cassette 3 moves from the pull-out position of the housing 31 to the tape cassette retraction position inside the housing 31, the slider member 125 touches the lower part of the inclined cam surface 150 formed on one side of the front end. By maintaining the contacting state, the cam engaging piece 139 at the tip is maintained separated from the cassette holder 34.

Note that the retractable slider plate 141 is movable in the same direction as the moving direction of the carrier 33 via a slide guide shaft installed on the lower surface side of the chassis base plate 41.

The retracting slider plate 141 that supports the cassette retracting lever 126 as described above has its base end bent into a substantially U-shape pivoted on a support shaft 155 planted on the chassis base plate 41, and the cam gear 122 A pin-shaped cam follower 156 installed in the middle of the cam groove 121 is engaged with the support shaft 15.
A cam lever 15 is rotatably abutted around 5.
An engagement pin 158 planted at the tip of 7 is engaged. This engagement pin 158 is connected to the chassis board 41.
A rectangular engagement hole 16 is formed in the retractable slider plate 141 by protruding from the lower surface of the chassis board 41 through an arc-shaped through hole 159 formed in the
0 is engaged. Further, the cam lever 157 is rotationally biased by a cam lever biasing spring 161 stretched between the tip of the cam lever 157 and the middle part of the lock lever 127, and presses the cam follower 156 against the inner peripheral side surface of the cam groove 121. ing. The lock lever 127 is biased to rotate in a direction away from the engaged portion 116a of the torsion coil spring 116 by the cam lever biasing spring 161.

The retraction slider plate 14 is connected to the cam gear 122 via the cam lever 157 as described above.
1 is operated to move together with the cam retraction lever 126 by the rotational drive of the cam gear 122.

Further, as described above, the lock lever 127, to which one end of the cam lever biasing spring 161 that biases the cam lever 157 to rotate, is locked, has the lock piece 127a on the tip side facing the one side plate 37 side of the carrier 33, and the lock lever 127 is rotated halfway. U-shaped pivot part 162 bent at the part
is pivotally supported on a support shaft 163 set on the chassis board 41, and an engagement pin 164 protruding from the board side is engaged with a lock lever rotation operation groove 165 drilled in the longitudinal direction of the slider member 125. can be installed. This lock lever rotation operation groove 165 has
An inclined groove portion 165a is formed at one end side of a portion parallel to the slide guide holes 137, 138. Then, as the slider member 125 moves and the engagement pin 164 slides in the inclined groove portion 165a, the lock lever 127 moves against the biasing force of the cam lever biasing spring 161, and the lock piece 127a at the tip is conveyed. The body 33 is rotated toward one side plate 37 side.

Further, the vertical movement operation lever 128 that lowers the cassette holder 34 is connected to the slider member 12.
It is attached via a vertical support piece 167 erected from the chassis base plate 41 so as to face a rotary operation member pressing piece 166 bored on the other side opposite to the side on which the rack gear 124 of No. 5 is provided. That is, the vertical movement operating member 128 of the cassette holder is raised from the chassis base plate 14 with the pressing pin contact portion 168 provided at the tip that contacts the pressing pin 81 of the operated plate 80 attached to the cassette holder 34 facing downward. A support shaft 170 is installed on one side of the vertical support piece 167 so as to be perpendicular to the vertical support piece 167.
The slider member 125 is attached to the slider member 125 by supporting a U-shaped pivot portion 171 bent at the base end thereof.
It is mounted so that it can rotate perpendicular to the direction of movement.

Furthermore, a pressed pin 173 is provided protruding from one side of the vertical movement operation member 128.

This vertical movement operation member 128 is connected to a tension spring 17 whose one end is fixed to the chassis board 41 side.
2 is locked, and the press pin contact portion 168 at the tip is urged to rotate in a direction away from the rotation operation lever 80 of the cassette holder 34, that is, toward the chassis base plate 41 side.

G-5 Tape cassette mounting operation (Figures 1 and 5 to 10) In the tape cassette mounting device configured as described above, tape cassette 1 is mounted at a predetermined tape cassette mounting position in the tape recorder. Explain the operation.

G-5a Tape cassette retraction operation First, to install tape cassette 1 at the predetermined tape cassette installation position in the tape recorder,
First, the loading motor 46 is driven in the reverse direction to pull out the transport body 33 including the cassette holder 34 to a pulled-out position outside the casing 31 where the tape cassette 1 can be inserted and removed, and the tape cassette 1 is temporarily attached. 105. Here, the loading motor 46 is driven to rotate in the normal direction to pull the transport body 33 into the housing 31. As the carrier 33 is drawn into the housing 31, the rotary operation piece 92 of the first cassette push lever 87 constituting the cassette push operation mechanism 84 comes into contact with the contact piece 91 of the chassis base plate 41. When the transport body 33 is further drawn into the housing 31 from here, the rotary operation piece 92 of the first cassette pushing lever is pressed by the abutment piece 91, so that the first cassette pushing lever is pressed. The first and second cassette push levers 87 and 88 are rotated about the support shafts 85 and 86 against the biasing force of the push lever return spring 97. At this time, the first and second cassette pushing levers 87 and 88 are rotated at the same time because the gear portions 95 and 96 are engaged with each other. These first and second cassette pushing levers 87,
The cassette pressing pins 90 and 94 at the tips of the tape cassettes 1 press the back surface of the tape cassette 1 while protruding into the long holes 102 and 102 formed in the bottom plates 103 and 103 of the holder frame 35, and place the tape cassette 1 on the cassette holder 34. The moving operation is continued on the placing plate 56.

When the pressing operation by the first and second cassette pushing levers 87 and 88 is completed,
The tape cassette 1 is placed on the mounting plate 56 of the cassette holder 34 and held at the normal holding position. When the tape cassette 1 is placed on the cassette holder 34 in this way, the cassette holder is placed in each of the shallow grooves 22, 22 formed in the bottom plate 11 of the lower half 4 constituting the cassette case 2. The protrusions 61, 61 provided on the mounting plate 56 are inserted relative to each other and advance backward in the shallow grooves 22, 22, and the protrusions 61, 61 are inserted into the shallow grooves 22, 22, respectively. It starts to reach the depths. Then, the protrusions 61, 61 are connected to the shallow grooves 22,
22, the lock piece 2 provided on the lower half 4 of the cassette case 2 can be seen.
Each engaging protrusion 2 provided on the bottom surface of the tip of 3, 23
4 and 24 are pushed upwardly along the front slopes of the protrusions 61 and 61, and the lock pieces 2
3 and 23 are pushed upward while being bent, the sliding plate 10 is unlocked, and the sliding plate 10 and the cassette case 2 become able to move relative to each other. The protruding pieces 15 provided on the sliding plate 10 are attached to the sliding plate locking pieces 60, 60 of the cassette holder 34.
15 are brought into contact with each other, and the sliding plate 10 is locked. At this time, the tape cassette 1 is pressed and supported on the mounting plate 56 of the cassette holder 34 by pressing rollers 77, 77 attached to link levers 71, 72.

When the transport body 33 reaches the retracted position inside the housing 31, the retraction position detection switch provided on the chassis board 41 detects the retraction of the transport body 33, and at the same time, the loading motor 46 rotates. The drive is stopped, and then rotational drive of the drive motor 120 is started. When the drive motor 120 starts rotating, the cam gear 122 moves through the worm gear 132 to the arrow B in FIG.
It is rotated in the counterclockwise direction. When the cam gear 122 starts rotating, the slider member 125 that engages the cam gear 122 with the rack gear 124 is guided by the slide guide shafts 135, 136 in the direction of arrow C in FIG. 7 toward the cassette holder 34. Start moving.
Then, when the slider member 125 starts moving, the operating piece 1 of the cassette retracting lever 126
40 is the inclined cam surface 15 of the slider member 125
0 and the cassette engaging piece 139 at the tip engages the cassette holder 3 around the rotating shaft 144.
4 to the tape cassette 1 side and engages with the rear corner of the cassette case 2 as shown in FIG. When the cam gear 122 is further rotated from this state, the cam follower 156 of the cam lever 157
is guided by the cam groove 121, and this cam gear 12
2, the retracting slider plate 141 is retracted into the housing 31. When the cassette retracting lever 126 integrated with the retracting slider plate 141 is pulled inward of the housing 31, the cassette case 2 is moved to the sliding plate locking piece 60,
It is moved relative to the sliding plate 10 which is in a state of being locked to the reel shaft 60, and as shown in FIG.

Furthermore, when the slider member 125 is operated to move, the lock lever 127 is rotated as described above.
Lock piece 127 at the tip of this lock lever 127
a engages with the engaged portion 116a of the locking torsion coil spring 116 attached to the carrier 33, thereby locking the carrier 33 in the aforementioned retracted position.

As described above, the cam gear 122 is further rotationally driven from the state where the insertion holes 8, 8 for inserting the reel shaft of the cassette case 2 are opened, and the cam follower 15 is rotated.
6 further moves within the cam groove 121, the cam lever 157 is slightly reversely rotated, and the cassette retraction lever 126 is moved in a direction slightly away from the cassette case 2, as shown by the broken line in FIG. In this way, the engagement of the cassette engagement piece 139 with the cassette case 2 is released.

G-5b Mounting operation of the tape cassette to the tape cassette mounting position Then, the cam gear 122 is rotated until the cassette engagement piece 139 is disengaged from the cassette case 2 as described above, and then further rotated. Then, the slider member 125 is further moved in the direction of arrow C in FIG.

At this time, the cam follower 156 of the cam lever 157 is connected to the cam gear 12 in the cam groove 121.
Since the cam lever 157 only moves in a concentric circle with the cam gear 122, that is, a circumferential portion around the support shaft 129, the cam lever 157 remains inactive without being rotated by the rotation of the cam gear 122.

Then, the slider member 125 moves toward the arrow C in FIG.
As shown in FIG. 1A, the vertically moving member pressing piece 166 reaches a position where it presses a pressed pin 173 protruding from one side of the vertically moving member 128 of the cassette holder. Then, as the slider member 125 further moves in the direction of arrow C in FIG. It is rotated about the support shaft 170 in the direction of arrow D in B in FIG. When the vertical movement operating member 128 is rotated in this manner, the operated plate 80 is pressed by the vertical movement operating member 128, and the operated plate 80 is pressed.
is integrally and rotatably connected to the cassette holder rotation support member 6 by the limiter spring 83.
5 is rotated in the direction of arrow E in B in FIG.

At this time, the cassette holder 34 moves the rotation restriction pin 79 into the rotation restriction guide groove 78 while rotating around the pivot pins 73, 73 as described above.
Since the lowering operation is performed while being guided by the transport body 33, the tape cassette is lowered to the tape cassette mounting position while maintaining the initial state relative to the transport body 33, that is, maintaining the horizontal state.

When the cassette holder 34 is lowered to the tape cassette mounting position in the housing 31, the tape cassette 1 held by the cassette holder 34 aligns the positioning hole on the bottom side of the cassette case 2 with the tape cassette mounting position. The tape reels 6, 7 are inserted into the reel shafts 176 through the insertion holes 8, 8, which are engaged with the positioning pins 175 provided in the reel shafts and are opened.
The tape cassette is mounted at the tape cassette mounting position by engaging the reel hub of the tape cassette. This mounted state of the tape cassette 1 is maintained by maintaining the vertical movement operation member 128 pressed by the slider member 125.

Note that in the process of the cassette transfer device being pulled into the housing 31, the cassette case ejection lever 108
In this case, the abutting pin 113 is pressed by the inclined guide surface 115, and the cassette pressing pin 110 at one end is rotated in a direction to escape from the inside of the cassette holder 34.

Furthermore, when the vertical movement operating member 128 is rotated to lower the cassette holder 34 until the tape cassette 1 is mounted at the tape cassette mounting position, the slider member 125 reaches the end of movement position and the slider member 125 is moved to the rear end side. The switch operation protrusion 177 operates the slider member detection switch 178. Then, it is detected that the slider member 125 has reached the end of its movement position, and the rotation of the drive motor 120 is stopped to complete the entire tape cassette mounting operation.

By the way, when the tape cassette 1 is installed at the tape cassette installation position, the tape cassette 1
is supported by the positioning pin 175 and the reel shaft 176, and the mounting height position is regulated, so the lowering operation is prevented, and the cassette holder rotation support member 6
The rotation of the cassette holder 34 is also prevented by being stopped by a portion of the side walls 37, 38 of the carrier 33, and the lowering operation of the cassette holder 34 is also prevented. In this state in which at least the rotation of the cassette holder rotation support member 65 is prevented, the slider member 1
25 is further moved in the direction of arrow C in FIG. Only the operated plate 80 is rotated as shown in FIG. 10. The extension of the limiter spring 83 absorbs the pressing load applied to the cassette holder rotation support member 65 by the vertical movement operation member 128, and the cassette holder rotation support member 65, the cassette holder 34, and the cassette holder 34 are held together. An overload on the tape cassette 1 is prevented.

G-6 Tape cassette ejection operation The tape cassette 1 installed at the tape cassette installation position is removed from the housing 31 by the operation described above.
The ejecting operation from inside is performed by the reverse operation of the tape cassette loading operation.

That is, first, the drive motor 120 is reversely driven to move the slider member 125 to the rear side in the opposite direction of arrow C in FIG. This slider member 125
moves backward, the vertical movement operating member 128 is rotated back by the tension spring 172 and the operated plate 80
The pressed state is released. Then, the cassette holder rotation support member 65 is rotated back to the upper side of the conveyor 33 by the torsion coil spring 70, the cassette holder 34 is returned to the raised position, and the tape cassette 1 is removed upward from the tape cassette mounting position. urge

Thereafter, the transport body 33 is moved into the housing 3 by an operation opposite to the above-described tape cassette retraction operation.
1, the tape cassette 1 is brought into a removable state, and the ejection operation of the tape cassette 1 is completed.

Note that in the process of the conveyor 33 being pulled out of the housing 31, the cassette case ejection lever 108
is rotationally biased by the tension spring 111, and the cassette pressing pin 110 protrudes into the cassette holder 34, presses the cassette case 2, moves the tape cassette 1 toward the temporary attachment section 105, and removes the tape cassette 1. Make it possible.

Further, as the cassette transport body 36 including the transport body 33 is moved outward from the housing 31, the first and second cassette push levers 87, 88 of the cassette push operation mechanism 84 are moved by the push lever return spring 97. The tape cassette is rotated back to the return position, and the cassette pressing pins 90 and 94 at the tips are separated from the back side of the tape cassette.

H. Effects of the invention As described above, the present invention has a tape cassette that is supported so as to be movable in the horizontal direction between a tape cassette insertion/removal position and a tape cassette retraction position where the tape cassette can be loaded into the tape cassette mounting position. A cassette holder that holds the tape cassette is supported on the transport body so as to be movable up and down in a direction substantially perpendicular to the direction of movement of the transport body, and after the transport body reaches the retracted position, the cassette holder is lowered. A tape cassette mounting device for a magnetic recording and reproducing device is configured to mount the tape cassette at a tape cassette mounting position within the main body of the device. The cassette holder is rotatably supported by the transport body and is rotatably supported by a rotatable support member attached to the cassette holder and rotatably biased toward the raised position by a biasing means. The cassette holder support arm that supports the cassette holder of the member is rotatably supported at the end opposite to the support side of at least one of the cassette holders, and is rotated via a biasing means such as a spring having a limit function. The above operation is achieved by attaching an operated plate which is dynamically biased and capable of rotating integrally with the cassette holder rotation support member, and by pressing and operating this operation plate with a vertically movable operating member provided on the apparatus main body side. Rotating the cassette holder rotation support member against the urging force of the urging means,
Since the cassette holder is configured to be lowered to the tape cassette mounting position within the apparatus main body, the cassette holder can be transported without requiring a large number of components such as arms as in the conventional system described above. A vertical movement support mechanism for the body can be constructed, and this vertical movement support mechanism can be simplified.

Further, the present invention is configured such that the cassette holder is lowered by pressing an operated plate attached via a biasing means such as a spring having a vertical movement limit function. This prevents excessive pressing by the vertically movable operating member during the lowering operation of the tape cassette, and protects the tape cassette and the tape cassette support mechanism within the apparatus main body to which the tape cassette is mounted.

[Brief explanation of the drawing]

FIG. 1A is a side sectional view of the tape cassette mounting device according to the present invention in which the cassette holder is lowered, FIG. 1B is a partial plan view thereof, and FIG. FIG. 3 is a perspective view showing the external appearance of a tape recorder equipped with a mounting device in a state in which the tape cassette transfer device is pulled out of the housing; FIG. 3 is an exploded perspective view of the tape cassette transfer body constituting the present invention; , 4th
This figure is a schematic perspective view showing the tape cassette retracting and mounting mechanism, and FIG. 5 is a perspective view showing the attached state of the cassette holder. FIG. 6 shows a tape cassette mounting device in a magnetic recording/reproducing apparatus according to the present invention, and is a plan view showing a state in which the tape cassette transport body is pulled out of the housing.
FIG. 7 is a plan view showing the retracted state of the tape cassette transfer device, and FIG. 8 is a plan view showing the tape cassette transfer device reaching the retracted position into the housing and the insertion hole for inserting the reel shaft of the tape cassette being opened. FIG. FIG. 9 is a side sectional view showing the cassette holder lowered to the tape cassette mounting position, and FIG. 10 is a side sectional view showing the operated plate being pressed excessively. 11 to 14 show an example of a tape cassette. FIG. 11 is a perspective view of the tape cassette in the state where the insertion hole for inserting the reel shaft is closed, and FIG. 12 is a perspective view of the tape cassette in the above state. FIG. 13 is a perspective view seen from below with the insertion hole for inserting the reel shaft open, and FIG. 14 is a perspective view when the insertion hole for reel shaft insertion is closed. It is a bottom view in a state. 1... Tape cassette, 31... Housing, 33...
...Carrier, 34...Cassette holder, 36...
Cassette transfer body, 62... Connection plate, 63, 64...
...Cassette holder support arm, 65...Cassette holder rotation support member, 78...Rotation regulation guide groove, 79...Rotation regulation pin, 80...Operated plate, 83...Limiter spring with biasing means, 12
8...Vertical movement operation member.

Claims (1)

[Scope of Claim for Utility Model Registration] A conveying body supported so as to be movable in the horizontal direction between a tape cassette insertion/removal position and a tape cassette retraction position where the tape cassette can be loaded into the tape cassette mounting position; A cassette holder for holding the tape cassette, and cassette holder support arms are integrally provided at both ends of the connecting plate, and are rotatably supported by the carrier and biased to rotate in the direction of the raised position by biasing means. and a cassette holder rotation support member attached to the cassette holder rotation support member, the cassette holder is rotatably supported by the cassette holder support arm of the cassette holder rotation support member, and the cassette holder is provided on at least one side of the cassette holder. A rotation restriction pin is engaged with a rotation restriction guide groove provided on the conveyor, and the cassette holder is rotatably supported at the end of at least one of the cassette holder support arms facing the supporting side of the cassette holder. and a vertically movable operating member which presses and operates the operated plate on the apparatus main body side, which is rotatably attached to the cassette holder rotary support member and rotatably biased through the biasing means. The cassette holder rotation support member is rotated against the biasing force of the biasing means by pressing the operated plate with the vertical movement operation member, and the cassette holder A tape cassette mounting device for a magnetic recording/reproducing device, which comprises lowering the tape cassette to the tape cassette mounting position.