JPH07141737A - Cassette attaching and detaching device - Google Patents

Abstract

PURPOSE:To simplify mechanisms and to reduce the thickness and size thereof by executing vertical movement and horizontal movement of a cassette by the vertical moving mechanism and horizontal moving mechanism which are independent from each other. CONSTITUTION:The cassette 90 is held in a cassette holding member 30 when a cap 8 is opened and the cassette 90 is inserted longitudinally from a cassette insertion port 7. The cassette 90 is moved to the prescribed cassette insertion position by the vertical moving mechanism 40 when the cassette 90 is further pushed in from this state. The state of the mechanism 40 in the cassette insertion position is maintained by a stopper mechanism 60. The cassette is moved to the prescribed cassette loading position by the horizontal moving mechanism 50 cooperatively with the closing operation of the cap 8 when the cap 8 is closed from this state. The state of the mechanism 50 in this cassette loading position is maintained by the mechanism 60. Taking out of the cassette is executed by releasing the stopper of the respective mechanisms by the mechanism 60.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cassette loading / unloading device for loading (loading / sweeping) a tape cassette used in, for example, a camera-integrated VTR for business use.

[0002]

2. Description of the Related Art For example, in a VTR with a built-in camera for business use, the mechanical deck of the VTR is miniaturized by arranging a tape cassette, a drum, a capstan motor, etc. on a vertical plane. This will be described in detail with reference to FIGS. 13 and 14. The camera-integrated VTR 100 shown in FIG.
The tape cassette 110 is inserted and loaded from above the VTR mechanical deck 101, and the drum 102 and the capstan 103 are loaded.
It is a type of tape loading on etc. Also, FIG.
The camera-integrated VTR 100 'shown in FIG. 4 is a type in which the tape cassette 110 is inserted and loaded from the rear of the VTR mechanical deck portion 101 and tape-loaded onto the drum 102, the capstan 103, or the like.

[0003]

In the conventional camera-integrated VTR 100 shown in FIG. 13, a small drum 102 or a drum 1 is used to reduce the height H.
Since 02 was made to slip under the tape cassette 110, there were drawbacks that the number of heads increased and the overall mechanism became complicated.

Further, a camera-integrated VTR 1 shown in FIG.
In the case of 00 ', the height dimension H can be reduced, but since the tape cassette 110 is inserted from the rear (rear side) of the VTR mechanical deck section 101, the tape cassette 110 tends to fall.

Therefore, the present invention provides a cassette attaching / detaching device which can be simplified in structure and can be made thin and compact.

[0006]

After inserting a cassette from a cassette insertion port, the cassette is loaded at a predetermined cassette loading (mounting) position and the cassette loaded at the cassette loading position is swept out from the cassette insertion port. In the cassette attaching / detaching device configured as described above, a lid that opens and closes the cassette insertion opening, a cassette holding member that holds the cassette inserted in the longitudinal direction of the cassette from the cassette insertion opening opened by the lid, and the cassette holding A vertical movement mechanism that vertically moves the cassette held by the member to a predetermined cassette insertion position where the lid body closes the cassette insertion opening, and the cassette to the cassette loading position in conjunction with the closing operation of the lid body. A horizontal movement mechanism for moving the holding member in the horizontal direction, and the above-mentioned at the cassette insertion position and the cassette loading position. And a stopper mechanism for maintaining the state of the linear movement mechanism and the horizontal movement mechanism.

[0007]

When the cassette is inserted in the longitudinal direction through the cassette insertion opening opened by the lid, it is held by the cassette holding member. When the cassette is pushed further from this state, the vertical movement mechanism moves the cassette to a predetermined cassette insertion position. The state of the vertical movement mechanism at the cassette insertion position is maintained by the stopper mechanism. When the lid is closed from this state, the cassette is moved to a predetermined cassette loading position by the horizontal movement mechanism in conjunction with the closing operation of the lid. The state of the horizontal movement mechanism at the cassette loading position is maintained by the stopper mechanism. Further, the cassette is taken out by releasing the stopper state of each mechanism by the stopper mechanism.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to the drawings.

In FIGS. 9 to 12, reference numeral 1 denotes a professional-use camera-integrated digital VTR, in which the right side of the body 2 is covered with a cover 3 from the center to the rear of the VT.
The chassis 4 that constitutes the R mechanical deck section is arranged in a standing state. A drum 5, a capstan motor 6 and the like are provided on the front side of the chassis 4 so that the magnetic tape 93 of a digital audio cassette (hereinafter referred to as tape cassette) 90 is tape-loaded. Further, a rear part from the center of the upper part of the cover 3 is a projection 3a which is curved in an arc shape, and a cassette insertion port 7 which is cut out in a substantially kite shape is formed in the projection 3a. The cassette insertion opening 7 is openable and closable by a lid 8 and the main body 2 facing the cassette insertion opening 7 is opened.
A cassette attaching / detaching device 10 for loading (loading, sweeping) the tape cassette 90 is provided therein.

As shown in FIGS. 1 to 6, the cassette attaching / detaching device 10 includes a lid 8 for opening / closing the cassette insertion opening 7.
A side plate 20 bent into an L-shape on the front side, which is screwed to the chassis 4, and a tape cassette 90 which is disposed inside the side plate 20 and is inserted in the longitudinal direction from a cassette insertion opening 7 opened by a lid 8. The stage 30 (cassette holding member) for holding the tape cassette 90 and the tape cassette 90 held on the stage 30 are vertically moved to the lowest cassette insertion completion position (cassette insertion position) where the lid 8 can close the cassette insertion port 7. Vertical movement mechanism 4 for moving in the direction
0, and the tape cassette 90 disposed outside the side plate 20 and interlocking with the closing operation of the lid body 8 (the position where the tape cassette 90 comes into contact with a pair of positioning pins 23, 23 described later).
Of the horizontal moving mechanism 50 for moving the stage 30 in the horizontal direction so that the stage 30 moves up to, and the vertical moving mechanism 40 and the horizontal moving mechanism 50 disposed outside the side plate 20 at the cassette insertion position and the cassette loading position. The stopper mechanism 60 for maintaining the state, the lock release mechanism 70 attached to the lower side of the stage 30 for releasing the lock state of the lock lever 92 of the front lid 91 of the tape cassette 90, and the horizontal movement mechanism 50 are interlocked with each other. And a front lid opening / closing mechanism 80 that opens and closes the front lid 91 of the tape cassette 90.

As shown in FIGS. 1 and 6, the side plate 20 is formed by bending a side piece 21 having a U-shaped cross section and a rear piece 22 having an L-shaped cross section into a front L-shape. As shown in FIG.
A pair of laterally long slots 21a, 21 are provided in the upper and lower portions of the side piece portion 21.
A is formed, and an L-shaped notch 21b is formed on the front side near the center. In addition, a pair of positioning pins 23, 23 are erected on the upper and lower portions of the side piece portion 21 on the bottom surface side so as to extend in the horizontal direction. Further, as shown in FIGS. 4 and 5, the longitudinal slot 2 is provided to the right of the center of the rear piece 22.
2a is formed.

The stage 30 is, as shown in FIGS.
The side piece portion 31 having an L-shaped cross section and the rear piece portion 32 having an L-shaped cross section are bent and formed to have an L-shaped front shape. This side piece 31
A pair of shafts 33A, 33A are fixed to the rear piece 32, and a single shaft 33B is fixed to the rear piece 32 by caulking. Through the pair of shafts 33A, 33A and the rollers 34A, 34A and 34B rotatably supported by the one shaft 33B, the stage 30 is provided with a pair of groove holes 21a of the side piece 21 of the side plate 20.
21a and one slot 22a of the rear piece 22 in the horizontal direction (direction from the cassette insertion position to the cassette mounting position)
It is designed to move back and forth.

At the center of the side piece 31 of the stage 30, a cassette pressing plate 35A is swingably supported via a support shaft 36A. A tension coil spring 37A is interposed between the base of the cassette pressing plate 35A and the side piece 31, and the pressing piece 35a on the tip side presses the upper surface of the tape cassette 90 by the urging force of the tension coil spring 37A. It is supposed to do. A guide groove 90a on the upper surface side of the tape cassette 90 is provided at the center of the inner surface of the pressing piece portion 35a.
The guide pin 38 to be engaged with is fixed by crimping. Further, the guide groove 90 on the lower surface side of the tape cassette 90 is formed in the bottom surface portion 31a of the side piece portion 31 facing the guide pin 38.
A long cassette guide 39 engaged with b is fixed. The bottom surface of the tape cassette 90 on the front lid 91 side is guided by a cassette guide plate 9 standing upright from the chassis 4.

Further, on the right side of the rear piece 32 of the stage 30, a cassette pressing plate 35B is swingably supported via a support shaft 36B. A tension coil spring 37B is interposed between the base portion of the cassette pressing plate 35B and the rear piece portion 32, and the right end surface of the tape cassette 90 is pressed by the pressing piece portion 35b on the front end side through the biasing force of the tension coil spring 37B. The upper surface side on the 90c side is pressed.

The vertical moving mechanism 40, as shown in FIGS. 1 and 2, includes a pair of shafts 24A, 24A fixed by caulking to the side piece 21 of the side plate 20 and respective rollers 25A, 25A in the vertical direction (up and down). Direction) and a slider plate 41 that is provided so as to be capable of reciprocating in the direction), and a tension as an elastic member that is interposed between the slider plate 41 and the side piece portion 21 of the side plate 20 and always biases the slider plate 41 upward. Coil spring 45
It consists of and.

The slider plate 41 has a pair of vertically elongated groove holes 42, 42 formed from the upper part to the left side in the center, and an inverted F-shaped groove hole 43 formed from the center to the lower part. Each roller 25A of the side piece portion 21 of the side plate 20 is inserted and engaged in each groove 42 of the slider plate 41. Further, the slot 43 of the slider plate 41 forms a triangular portion 43a and a rectangular portion 43b having a tapered surface. Further, the abutting piece portion 44 with which the right end face 90c of the tape cassette 90 abuts on the right end side of the rear portion of the slider plate 41.
Are integrally formed by bending.

As shown in FIGS. 1, 2 and 4, the horizontal moving mechanism 50 includes a pair of shafts 24A and 24A fixed by caulking to a side piece 21 of a side plate 20 and its side rollers 25A and 25A. The first cam plate 5 provided so as to be reciprocally movable in the vertical direction (vertical direction) between the portion 21 and the slider plate 41.
1, a drive arm 54 that is swingably supported by the side piece 21 via a shaft 53, and slides the first cam plate 51 downward, and a pair of caulking fixed to the rear piece 22 of the side plate 20. A second cam plate 57 provided reciprocally in the left-right direction outside the rear piece 22 via the shafts 24B and 24B and their respective rollers 25B and 25B, and a shaft 58 on the chassis 4.
It is swingably supported via a connecting arm 59 for interlocking the first cam plate 51 and the second cam plate 57.

As shown in FIG. 7, the first cam plate 51 has a pair of vertically elongated groove holes 51a, 5 extending from the upper portion to the lower left portion.
1a is formed, and a pair of oblique groove holes 51b, 51b are formed in the upper and lower portions. The rollers 25A of the side piece portion 21 of the side plate 20 are inserted and engaged in the groove holes 51a of the first cam plate 51, and the rollers 34A of the side piece portion 31 of the stage 30 are inserted in the groove holes 51b. Is inserted and engaged. In addition, the first cam plate 51 and the side piece 2 of the side plate 20.
A tension coil spring 52A as an elastic member is provided between
The first cam plate 51 is always biased upward by the biasing force of the tension coil spring 52A. Further, a rectangular groove hole 51 is provided between the vertically long groove hole 51a and the oblique groove hole 51b on the upper side of the first cam plate 51.
In addition to forming c, a tapered portion 51d and a concave stopper groove portion 51e are formed between the vertically elongated groove hole 51a on the rear side and the oblique groove hole 51b.

At the tip of the drive arm 54, as shown in FIG. 1, a roller 55 which is inserted and engaged in a rectangular slot 51c of the first cam plate 51 is pin-pivotally supported, and a shaft is provided at the base. A lid arm 56 supported so as to swing together with the drive arm 54 via 53 is attached. The left side of the lid 8 is fixed to the tip of the lid arm 56 with a screw 11. The right side portion of the lid body 8 is fixed to the inside of the cover 3 via a screw 15 to a lid arm 14 that meshes with a gear 13 of an oil damper 12.

As shown in FIGS. 4, 5 and 7, the second cam plate 57 has a pair of vertically elongated groove holes 57a and 5 on both sides of the lower portion.
7a is formed, and an oblique slot 57b is formed from the upper center to the left side. This second cam plate 57
The rear piece 22 of the side plate 20 in the pair of slots 57a, 57a.
The rollers 25B, 25B of a pair of shafts 24B, 24B fixed by crimping are inserted into and engaged with the groove holes 57b.
The roller 34B of the rear piece 32 of the stage 30 is inserted into and engaged with. A tension coil spring 52 as an elastic member is provided between the second cam plate 57 and the rear piece 22 of the side plate 20.
B is interposed, and the second cam plate 57 is always biased to the left side by the biasing force of the tension coil spring 52B. Further, the connecting arm 59 is formed in a dogleg shape, and both ends 59a and 59b thereof are pin-pivotally supported by the engaging portion 51f of the first cam plate 51 and the engaging portion 57f of the second cam plate 57.

As shown in FIGS. 1 and 2, the stopper mechanism 60 is a T-shaped lock arm 61 which is swingably supported at the lower portion along the outside of the side piece portion 21 of the side plate 20 via a pin 62. The lock arm 61 is rotatably supported by a pin pivotally supported by the tip 61a of the lock arm 61, and is engaged with and disengaged from the stopper groove portion 43c of the inverted F-shaped groove hole 43 of the slider plate 41 and the stopper groove portion 51e of the first cam plate 51. Roller 63 provided freely
And the roller 63 is interposed between the base end portion 61b of the lock arm 61 and the side piece portion 21, and the roller 63 is connected to the stopper groove hole portion 43c of the slider plate 41 and the stopper groove portion 51e of the first cam plate 51.
The tension coil spring 64 that urges the side plate 2 and the side plate 2
1 and the first cam plate 51, and a release plate 65 that moves in the vertical direction.

As shown in FIGS. 2 and 3, a shutter portion 65a is integrally projectingly formed at the tip of the release plate 65. A lock switch 66 composed of a light transmissive interrupter or the like is provided on the chassis 4 at a position facing the shutter portion 65a. In this cassette attaching / detaching device, all positions are recognized by the lock signal of the lock switch 66 shown in FIG. That is, the low (L) portion of the lock signal of the lock switch 66 is aligned with the cassette-in switch 67 described later, and loading is started at the high (H) portion of the lock switch 66 and the high (H) portion of the cassette-in switch 67. It has a signal. Further, as shown in FIG. 6, a triangular releasing portion 65b is integrally bent at a position of the tip of the releasing plate 65 facing the bottom surface of the side plate 20.
When the release portion 65b of the release plate 65 is pushed upward by a pressing means (not shown) operated by an eject button (not shown), the lock state of the lock arm 61 is released.

As shown in FIG. 6, the unlocking mechanism 70 has a pin 7 on the bottom surface 32a of the rear piece 32 of the stage 30.
1 and an inverted J-shaped interlocking arm 73 that is swingably supported by the pin 71 and that interlocks with the movement of the detection arm 72.
And the pin 7 at the tip 73a of the interlocking arm 73.
4 and a release lever 75 rotatably supporting a roller 76 inserted into a release groove 90d formed on the rear surface of the tape cassette 90 on the front lid 91 side of the tape cassette 90. It is configured.

In the middle of the detection arm 72, an abutment piece 72a with which the right end surface 90c of the tape cassette 90 abuts is integrally formed by bending. Further, the base 72b of the detection arm 72, the interlocking arm 73, the distal end 72c of the detection arm 72, and the interlocking arm 73 have a pair of tension coil springs 7.
7a and 77b are interposed. A groove hole 73b is formed on the distal end portion 73a side of the interlocking arm 73.
b is loosely fitted to a pin 78 protruding from the bottom surface portion 31a of the side piece portion 31 of the stage 30. As a result, the interlocking arm 7
The distal end portion 73a of No. 3 slides in the left-right direction along the pin 78 by the length of the slot 73a. In addition, the distal end 73a side of the interlocking arm 73 and the release lever 75
An extension coil spring 79 is interposed between the extension coil spring 79 and the base portion 75b, and the tip end portion 75a of the release lever 75 is always urged upward by the urging force of the extension coil spring 79.
Further, a cassette-in switch 67 composed of a light-transmissive interrupter or the like is provided on the chassis 4 at a position facing the central portion of the release lever 75.

The front lid opening / closing mechanism 80 has a lid opening plate 81 as shown in FIGS. The central front portion 81a of the lid opening plate 81 is provided on the right end side of the rear piece 22 of the side plate 20 with the support shaft 8
It is supported so as to be swingable in the horizontal direction via 2. Further, a rectangular slot 81b is formed in the base of the lid opening plate 81. The roller 34B of the rear piece 32 of the stage 30 is inserted and engaged in the rectangular slot 81b of the lid opening plate 81. As a result, as the second cam plate 57 moves in the left-right direction, the arc piece 81c on the tip end side of the lid opening plate 81 reciprocates in the horizontal direction as shown in FIGS.
The front lid 91 of 0 is opened and closed.

The camera integrated digital VT of the above embodiment
According to the cassette attaching / detaching device 10 of R1, when an eject button (not shown) is operated, as shown in FIGS.
Is a pair of tension coil springs 52A of the horizontal movement mechanism 50,
The cassette insertion opening 7 is opened by the pulling force of 52B.
When the tape cassette 90 is inserted in the longitudinal direction from the cassette insertion opening 7 opened by the lid body 8 as shown in FIGS. 1, 2 and 6, the guide groove 90a on the upper surface side of the tape cassette 90 is fixed to the cassette of the stage 30. While being guided by the guide pins 38 of the pressing plate 35A, the guide groove 90b on the bottom surface side of the tape cassette 90 is guided by the cassette guide 39 of the side piece portion 31 of the stage 30. The bottom surface of the tape cassette 90 on the front lid 91 side is guided by the cassette guide plate 9. The tape cassette 90 held on the stage 30 in this way is the tape cassette 90 due to its own weight.
The right end surface 90c of the vertical movement mechanism 40 falls until it abuts on the abutment piece portion 44 of the slider plate 41 of the vertical movement mechanism 40.

From the state where the upper portion of the right end surface 90c of the tape cassette 90 hits the abutting piece 44 of the slider plate 41, the left end surface of the tape cassette 90 is moved vertically to the vertical movement mechanism 40.
The tape cassette 90 is pressed downward in the vertical direction against the urging force of the tension coil spring 45 until the release groove 90d on the bottom surface of the tape cassette 90 on the front lid 91 side comes to the position of the roller 76 of the lock release mechanism 70. 6, the lower portion of the right end surface 90c of the tape cassette 90 is contacted with the contact piece 72 of the detection arm 72 of the lock release mechanism 70, as shown in FIG.
Contact a. Then, when the tape cassette 90 further descends, the detection arm 72 swings counterclockwise in FIG. 6 about the pin 71. By interlocking with the swing of the detection arm 72, the interlocking arm 73 also swings in synchronization in the same direction, so that the roller 76 provided on the tip end portion 75 a of the release lever 75 causes the front lid 91 side of the tape cassette 90. The front cover 91 is released from the locked state by entering the release groove 90d on the bottom surface thereof and hitting the lock lever 92. Immediately after releasing the lock state of the front lid 91, the roller 63 of the stopper mechanism 60 is released.
Is a stopper groove hole portion 4 from the tapered surface of the triangular portion 43a of the slider plate 41 against the biasing force of the tension coil spring 64.
3c is locked. The state where the slider plate 41 is locked by the roller 63 of the stopper mechanism 60 is the insertion completion position (cassette insertion position) of the tape cassette 90.

When the lid 8 is pushed from the insertion completion position of the tape cassette 90 to start the closing operation of closing the cassette insertion opening 7 against the biasing force of the pair of tension coil springs 52A and 52B of the horizontal movement mechanism 50, the horizontal movement is started. The roller 55 of the drive arm 54 of the mechanism 50 moves downward. The movement of the roller 55 downward causes the first cam plate 51 to move to the side plate 20.
It moves downward with respect to the side piece portion 21 of. At this time, the pair of rollers 3 of the side piece portion 31 of the stage 30 inserted and engaged with the pair of diagonal groove holes 51b, 51b of the first cam plate 51.
4A and 34A are a pair of slot holes 21 of the side piece portion 21 of the side plate 20.
It moves horizontally toward the pair of positioning pins 23, 23 along a, 21a. Further, the connecting arm 59 is connected to the first cam plate 51.
Oblique slot 57b of the second cam 57 that is interlocked via
The roller 34B of the rear piece 32 of the stage 30, which is inserted and engaged with, moves horizontally toward the positioning pin 23 along the groove 22a of the rear piece 22 of the side plate 20. As a result, the tape cassette 90 held on the stage 30 via the pair of cassette pressing plates 35A, 35B and the like horizontally moves while maintaining the vertical state on the side of the pair of positioning pins 23, 23.

Second stage during the horizontal movement of the stage 30
While the cam plate 57 is moving to the right side in FIG.
When the rectangular slot 81b of the lid opening plate 81 of the front lid opening / closing mechanism 80, which is inserted into and engaged with the roller 34B of the rear piece 32 of 0, moves to the side of the slot 57a of the second cam 57, the lid opening plate 81 is moved. The arc-shaped piece 81c hits the front lid 91 of the tape cassette 90, and the front lid 91 starts to open. When the stage 30 moves horizontally to the cassette loading position where the tape cassette 90 is set on the pair of positioning pins 23, 23, the roller 63 of the stopper mechanism 60 resists the urging force of the tension coil spring 64 and the first cam plate 51. Taper part 5
It is locked in the stopper groove portion 51e from 1d. The state where the first cam plate 51 is locked by the roller 63 of the stopper mechanism 60 is the cassette loading (mounting) position of the tape cassette 90. At this cassette loading position, the front lid 91 of the tape cassette 90 is fully opened by the arc piece 81c of the lid opening plate 81 of the front lid opening / closing mechanism 80.

The horizontal stroke amount of the tape cassette 90 until the tape cassette 90 is set on the pair of positioning pins 23, 23, which is the cassette loading position, is set to, for example, 22 mm, while the lid is closed. The horizontal stroke amount of the stage 30 due to the closing operation of the body 8 is set to, for example, 22.5 mm. This 0.5 mm overstroke corresponds to the tension coil springs 37A of the pair of cassette pressing plates 35A and 35B of the stage 30,
The urging force of 37B acts so that the tape cassette 90 is mounted on the pair of positioning pins 23, 23 at the cassette loading position without rattling. In addition, since the required opening amount of the front lid 91 of the tape cassette 90 is insufficient at a stroke of 22 mm in the horizontal direction of the tape cassette 90, an arc piece of the lid opening plate 81 of the front lid opening / closing mechanism 80 which is interlocked with the second cam plate 57. The front cover 9 of the tape cassette 90 is swung by swinging the portion 81c.
1 is moved in a direction of opening 24 mm, which is a required opening amount longer than the stroke amount of the tape cassette 90 in the horizontal direction, to fully open the lid 91. That is, when the tape cassette 90 moves horizontally by 22 mm, the front lid 91 of the tape cassette 90 realizes a total opening amount of 24 mm by the rotation of the lid opening plate 81 of the front lid opening / closing mechanism 80. Thereby, the thickness (width) in the horizontal direction of the cassette attaching / detaching device 10 can be made as small as possible, and the cassette insertion port 7 into which the tape cassette 90 is inserted in the longitudinal direction (vertical direction) does not have to be opened greatly. Therefore, the camera-integrated digital VTR 1 can be made thinner, smaller and lighter.

Further, since the vertical movement and the horizontal movement of the tape cassette 90 are performed by the vertical movement mechanism 40 and the horizontal movement mechanism 50 which are independent mechanisms, the whole mechanism constituting the cassette attaching / detaching device 10 is constituted. Can be simplified. In particular, the maintenance of the cassette insertion position of the tape cassette 90 of the vertical movement mechanism 40 (lock) and the maintenance of the cassette loading position of the tape cassette 90 of the horizontal movement mechanism 50 (lock) are performed by the roller 63 of one stopper mechanism 60. Since it has been set, the mechanism can be reduced accordingly,
Weight reduction and cost reduction can be achieved. Furthermore, since the operation from the cassette insertion position of the tape cassette 90 to the cassette loading position is performed by the closing operation of the lid body 8, the cassette insertion opening 7 can be downsized and integrated with the cover 3, The overall rigidity can be increased.

The tape cassette 90 is taken out by operating an eject button (not shown). That is, when the eject button is operated, the release portion 65 of the release plate 65 is resisted against the biasing force of the tension coil spring 64 of the stopper mechanism 60.
b is pulled upward. As a result, the lock arm 6
The tip portion 61a of No. 1 oscillates clockwise in the figure and the roller 63
The locked state of the slider plate 41 and the first cam plate 51 due to is released. Then, first, the tension coil spring 52
The first cam plate 51 and the second cam plate 57 move to their original positions by the urging forces of A and 52B. As a result, stage 3
0 moves horizontally to the cover 3 side. During the horizontal movement of the stage 30, as shown in FIG. 3, one roller 3 of the stage 30 is inserted into the groove portion 43d of the groove hole 43 of the slider plate 41.
4A is positioned, vertical movement of the slider plate 41 is prohibited. When the horizontal operation of the stage 30 is completed, one roller 34A of the stage 30 is positioned in the vertical hole portion 43e of the slot 43 of the slider plate 41. By doing so, the slider plate 41 starts to move upward. Then, at the same time when the horizontal movement of the stage 30 to the cover 3 side is completed, the lid 8 which has closed the cassette insertion opening 7 is opened, and the tape cassette 90 is pushed out by the urging force of the tension coil spring 45 of the slider plate 41 to cause the tape The left end portion of the cassette 90 can be pulled out from the cassette insertion opening 7 and taken out.

After removing the tape cassette 90, the lid 8
In the case of closing, since the stopper slot 43c is formed in the slider plate 41 in parallel with the slot 43d, one roller 34A of the stage 30 is inserted into the stopper slot 43c side. As a result, even when the tape cassette 90 is not inserted and held in the stage 30, the horizontal movement mechanism 50 horizontally moves the stage 30 to the positioning pin 23 side, so that the lid 8 closes the cassette insertion port 7.

Further, as shown in FIG. 6, the release lever 75 of the lock release mechanism 70 is connected to the interlocking arm 7 via the pin 74.
Since it is swingable at the tip 73a of No. 3,
The release lever 75 is used even when the tape cassette 90 is inserted or ejected.
While the roller 76 is guided by the release groove 90d on the front lid 91 side of the bottom surface of the tape cassette 90, the interlocking arm 73 can be swung.

Further, a guide pin 38 is provided on one cassette pressing plate 35A of the stage 30, and no guide groove is formed on the upper surface side in the conventional tape cassette used for other than the camera integrated digital VTR1. Therefore, the guide pin 38 prevents the insertion of the conventional tape cassette.

According to the above-mentioned embodiment, the driving arm and the lid arm are integrally formed into a substantially V shape as the driving means for driving the first cam plate of the horizontal movement mechanism. You may use what was integrally molded to. Also, a camera-integrated digital VTR and the digital VTR
I explained the cassette attachment / detachment device that uses the digital audio cassette used in TR.
Needless to say, it can be applied to cassette attachment / detachment devices used for other video cameras and recording / reproducing devices such as R and 8 mm tape cassettes.

[0037]

As described above, according to the present invention, after the cassette is inserted from the cassette insertion port, the cassette is loaded at a predetermined cassette loading position, and the cassette loaded at the cassette loading position is loaded into the cassette insertion port. In a cassette attaching / detaching device configured to be swept from the lid, a lid that opens and closes the cassette insertion opening, and a cassette holding member that holds the cassette inserted in the longitudinal direction of the cassette from the cassette insertion opening opened by the lid. , A vertical movement mechanism for vertically moving the cassette held by the cassette holding member to a predetermined cassette insertion position, and a horizontal movement of the cassette holding member to the cassette loading position in conjunction with a closing operation of the lid body. Horizontal moving mechanism for moving, vertical moving mechanism and horizontal moving machine at the cassette insertion position and cassette loading position Since the vertical movement mechanism and the horizontal movement mechanism, which are independent mechanisms, can perform vertical movement and horizontal movement of the cassette by providing the stopper mechanism for maintaining the state of The cassette insertion port can be miniaturized as much as possible. As a result, it is possible to reduce the overall thickness and size of the cassette attaching / detaching device. Further, since the state of the vertical movement mechanism at the cassette insertion position and the state of the horizontal movement mechanism at the cassette loading position are maintained by one stopper mechanism, the entire mechanism of the cassette attaching / detaching device is correspondingly increased. Further simplification and cost reduction can be achieved.

[Brief description of drawings]

FIG. 1 is a camera-integrated VTR showing an embodiment of the present invention.
FIG. 3 is a perspective view of a cassette attaching / detaching device used in the above.

FIG. 2 is a side view showing the insertion start state of the tape cassette of the cassette attaching / detaching device.

FIG. 3 is a side view showing a loaded state of a tape cassette of the cassette attaching / detaching device.

FIG. 4 is a bottom view showing the inserted state of the tape cassette of the cassette attaching / detaching device.

FIG. 5 is a bottom view showing a loaded state of the tape cassette of the cassette attaching / detaching device.

FIG. 6 is a front view showing a tape cassette insertion start state of the cassette attaching / detaching device.

FIG. 7: First and second used in the cassette attaching / detaching device
The perspective view which shows the relationship of a cam plate.

FIG. 8 is a waveform diagram of output signals of a cassette in switch and a lock switch used in the cassette attaching / detaching device.

FIG. 9 is a rear view of the camera integrated digital VTR.

FIG. 10 is a side view of the camera-integrated digital VTR.

FIG. 11 is an explanatory diagram showing the inside of the camera-integrated digital VTR from above.

FIG. 12 is an explanatory diagram showing the inside of the camera-integrated digital VTR from the side.

FIG. 13 is a schematic explanatory diagram of a conventional camera-integrated VTR.

FIG. 14 is a schematic explanatory view of another conventional camera-integrated VTR.

[Explanation of symbols]

 7 ... Cassette insertion port 8 ... Lid body 10 ... Cassette attachment / detachment device 30 ... Stage (cassette holding member) 40 ... Vertical movement mechanism 50 ... Horizontal movement mechanism 60 ... Stopper mechanism 70 ... Lock release mechanism 80 ... Front lid opening / closing mechanism 90 ... Cassette 91 ... Front lid

Claims (3)

[Claims] 1. A cassette attachment / detachment device configured to load a cassette at a predetermined cassette loading position after the cassette is inserted from the cassette insertion port and to sweep out the cassette loaded at the cassette loading position from the cassette insertion port. A lid for opening and closing the cassette insertion opening, a cassette holding member for holding the cassette inserted in the longitudinal direction of the cassette from the cassette insertion opening opened by the lid, and a cassette held by the cassette holding member A vertical movement mechanism for vertically moving the cassette to a predetermined cassette insertion position,
The horizontal movement mechanism for moving the cassette holding member in the horizontal direction to the cassette loading position in conjunction with the closing operation of the lid body, and the states of the vertical movement mechanism and the horizontal movement mechanism at the cassette insertion position and the cassette loading position are described. A cassette attaching / detaching device comprising a stopper mechanism for maintaining the same. 2. The cassette attaching / detaching device according to claim 1, wherein the cassette holding member is provided with a lock releasing mechanism for releasing the locked state of the front lid of the cassette. 3. The cassette attaching / detaching device according to claim 1, wherein a front lid opening / closing mechanism for opening / closing a front lid of the cassette is provided in association with the horizontal movement mechanism.