JPH04286756A - Cassette loading device - Google Patents

Abstract

PURPOSE:To facilitate the operations of cassettes and to prevent the decline of designing quality in the vicinity of an inserting section by inserting plural cassettes in the inside of an equipment in advance. CONSTITUTION:This device is provided with a tray device 100 which is freely inserted and detached through the opening part of this casing and is capable of arranging first and second cassettes on the upper surfaces of front and rear areas, a front pop-up mechanism 230 which is activated to float and direct the tip of the first cassette obliquely upward when the tray device is in a drawing out condition, and a rear pop-up mechanism 330 which is activated to float and direct the tip of the second cassette loaded on the rear area obliquely upward when the tray device is in a maximum drawing out condition, whose inclined angle is about equal to that of the first cassette and by which the second cassette is put in the containing section with its bottom surface slided on the upper surface of the first cassette. Also, a lid 900 is provided on an opening corresponding to the cassette inserting section of the rear pop-up mechanism for opening and closing a cassette inserting route.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cassette loading device which is incorporated into, for example, a video tape recorder (hereinafter referred to as VTR) or a digital audio tape recorder (hereinafter referred to as DAT) and handles a plurality of cassettes.

0002

2. Description of the Related Art In recent years, there have been an increase in the number of long television broadcast programs. Furthermore, with the start of satellite broadcasting, the number of programs that are broadcast late into the night is increasing. Therefore,
The recording system of VTRs is also changing to the point where it is possible to record while the person is away and for long periods of time.

However, current VTRs have a structure in which only one tape cassette is loaded and used for long-term recording or recording when the user is away, so there is a limit to the recording capacity. Furthermore, since there are standards for the size of cassettes, there are restrictions on the production of large-capacity cassette tapes. In order to solve this problem, there has been a proposal to configure a VTR so that a plurality of cassettes can be loaded therein.

0004

[Problem to be Solved by the Invention] However, in the case of a VTR that can load multiple cassettes, it is difficult to load the cassette into the VTR.
The structure of the part to be inserted into the housing must be large. This results in an inferior appearance of the VTR in terms of design. Furthermore, the cassette mounting mechanism becomes complicated, and its operability becomes a problem.

[0005] Therefore, the present invention provides a cassette mounting device that allows the cassettes to be easily operated and prevents design deterioration in the vicinity of the insertion portion when a plurality of cassettes can be inserted into the device in advance. The purpose is to provide

[0006]

[Means for Solving the Problems] The present invention includes a casing with a built-in tape recording and reproducing function, an opening provided in the front of the casing, and a device that can be inserted and removed horizontally through this opening. a tray device in which the first and second cassettes can be placed on the upper surface of the rear region and the rear region, respectively; and a tray device provided in the front region of the tray device, the tray device being pulled out to expose the front region to the outside of the casing. a front pop-up mechanism that is movable to lift the tip of the first cassette and direct it diagonally upward when in the state; With all of the area and a part of the rear area exposed outside the housing, the tip of the second cassette loaded in the rear area is lifted and moved diagonally upward, and the inclination angle is adjusted. and a rear pop-up mechanism that is approximately equal to the inclination angle of the first cassette by the front pop-up mechanism, and is housed in the storage part so that the bottom surface of the second cassette slides on the top surface of the first cassette. .

[0007] Furthermore, the opening formed in the housing corresponding to the cassette insertion portion of the rear pop-up mechanism has a rotation fulcrum on the upper side thereof, and a rotation end so as to open and close the cassette insertion path. A lid is provided that rotates back and forth.

[0008]

[Operation] According to the above means, when loading a cassette into the rear pop-up mechanism, the cassette can be loaded so as to slide on the top surface of the cassette loaded into the front pop-up mechanism, making positioning easy and providing good operability. Furthermore, the cassette insertion path of the rear pop-up mechanism has a lid that can hide the inside of the device, so the design effect of the exterior is not impaired.

[0009]

Embodiments Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIGS. 1 to 3 and 4 show an embodiment of the present invention, and show an external perspective view and its basic operation.

[0010]The VTR to which this invention is applied is, for example, 2
Two cassettes can be pre-arranged in the front and rear regions of the tray device 100. Reference numeral 10 denotes a VTR housing, and an opening 12 is formed in the front surface of the housing, through which the tray device 100 can be inserted horizontally in the front-rear direction or exposed from inside the housing 10. The tray device 100 can be moved in the front-back direction because rails formed on the sides of its frame engage with rollers provided inside the casing. 13 (shown in FIG. 4) is a lid provided on the opening 12, which opens when the tray device 100 is pulled out from the housing 10 and closes when it is inserted into the housing 10. Although not shown, this is realized by a lid opening/closing mechanism interlocked with the tray device 100. Inside the housing 10, a motor is provided at a fixed position as a tray drive mechanism, and the tray device 100 can be moved in the front and rear directions via an intermediate gear (this drive mechanism will be described later).

Additionally, pop-up members 230 are provided in the front and rear regions of the tray device 100, respectively, to facilitate insertion and removal of the cassettes 200 and 300.
and 330 are provided. This pop-up member 2
The drive mechanisms of the pop-up members 30 and 330 and their operating principles will be described later, but the pop-up members 230 and 330 are constructed so that the inclination angles α and β (FIG. 4(C)) are the same when they face obliquely upward. ing.

FIG. 1 shows a case where the tray device 100 is pulled out to the maximum from the housing and there are no cassettes in the front and rear areas, FIG. 2 shows a case where a cassette 200 is arranged only in the front area, and FIG. A case is shown in which cassettes 200 and 300 are arranged in the front region and the rear region, respectively.

[0013] In this device, a lid 900 for opening and closing the cassette insertion path is provided in the opening formed in the casing, corresponding to the cassette insertion portion of the pop-up mechanism provided in the rear area. . This lid 900 has a rotation fulcrum on the upper side, and the rotation end can rotate back and forth. When the tray device 100 is pulled out as shown in FIG. 1, the lid 900 prevents the inside of the device from being seen from the outside and has the effect of making the entire opening 12 appear narrower. Thereby, the device can be configured without impairing its design effect. The pivot point of the lid 900 may be provided at either the opening of the housing 10 or the opening of the accommodating portion of the pop-up member 300.

FIG. 4 shows the movement of the lid 900 when the cassette 300 is placed in the rear region. Same figure (A)
In this state, the cassette 200 is placed and the cassette 300 is inserted so as to slide on the upper surface of the cassette 200. At this time, the lid 900 is in a closed state. The same figure (B) is
A state in which the lid 900 is pushed by the cassette 300 and rotated counterclockwise is shown. Moreover, the same figure (C) shows the state in which the cassette 300 is completely installed.

When the tray device 100 is moved further back from the state shown in FIG. 4(C), the lid 900 returns to its original position (FIG. 4(A)) and hides the upper side of the opening 12. become. The lower side of the opening 12 is hidden by the rear frame surface of the tray device 100. Further, when the tray device 100 moves from the back, the pivot end of the lid 900 is pushed clockwise and opens, so that the pivot end faces forward and upward. In its normal position, the lid 900 is biased by a spring or the like so that it is positioned as shown in FIG. 4(A). Next, each part of the loading mechanism of the VTR and its operating principle will be further explained. Figure 5(A), (
B) and FIG. 6 are explanatory diagrams showing the basic configuration of cassette loading and unloading.

Inside the housing 10, a motor 21 is provided at a fixed position as a tray drive mechanism, and is capable of rotationally driving an intermediate gear 22. The intermediate gear 22 has a rotation axis in a direction perpendicular to the longitudinal movement direction of the tray device 100, and can rotationally drive drive gears 23 and 24, which are rotatably provided in the front and rear, respectively. . Drive gear 2
3 and 24 can be engaged with racks provided on the lower side of the tray device 100 to drive the tray device 100 back and forth. Further, inside the VTR, there is a function for mounting a cassette at a predetermined position and executing tape loading. A main chassis 14 is provided with a reel shaft that engages with the reel hub of the cassette and various parts (not shown) necessary for tape loading and tape driving. Reference numeral 15 denotes a rotating head drum to which a tape pulled out from a cassette placed at a predetermined mounting position is attached by tape loading. 5(A) shows a state in which the front drive gear 23 is engaged with the rack, FIG. 5(B) shows a state in which both the front and rear drive gears 23 and 24 engage with the rack, and FIG. 2 shows the rear part. The drive gear 24 is shown in mesh with the rack.

The tray device 100 has a frame-shaped tray frame when viewed from above, and the outer rails of the side plates are guided by rollers provided inside the housing 10 and are movable horizontally.

This system has cassettes 200 and 30 in the front and rear regions of the top surface of the tray device 100, respectively.
0 can be placed (FIG. 5(A)). Pantograph mechanisms 201 and 301 are attached to the front and rear regions of the tray device 100, respectively. The pantograph mechanisms 201 and 301 are similar mechanisms, and can lower and raise the cassette bottom support plate by means of a link mechanism.

FIG. 5A shows the state in which the cassettes 201 and 301 are placed in the entire area and the rear area, respectively. The reason why the distal ends of the cassettes 201 and 301 are directed diagonally upward is that they are lifted up by a pop-up mechanism provided in the tray device 100, making it easy to insert and remove the cassettes. Moreover, in this state, the design is such that the rear cassette 300 can be taken out without having to pull out the tray device 100 largely from the opening of the housing 10. In other words, the entire front cassette 200 is exposed, but the rear cassette 300
Only a part of it (the tip) is exposed through the opening. This is because by designing in this way, the distance to pull out the tray device 100 can be shortened, and the proportion of the surrounding space occupied can be reduced in terms of handling.

FIG. 5(B) shows the rear pantograph mechanism 3.
01 shows the state in which the cassette 300 is installed in the cassette installation position below the tray passing position. Further, FIG. 2 shows a state in which the front pantograph mechanism 201 lowers the cassette 200 and mounts it at a predetermined cassette mounting position. To move from the state in FIG. 5(A) to the state in FIG. 5(B),
The tray drive mechanism operates and moves the tray device 100 into the housing 10.
When the tray device 100 is moved horizontally toward the inside of the tray device 100 and reaches the first detection position (rear cassette drive position), the tray device 100 is stopped. When this position is reached, the pantograph drive mechanism, which will be described later, operates and drives the pantograph mechanism 301.
Lower the cassette 300. To shift from the state shown in FIG. 5(B) to the state shown in FIG. 6, the pantograph drive mechanism drives the pantograph mechanism so as to lift the descending cassette 300, and returns it to the original position of the tray device 100. Next, the tray drive mechanism moves the tray device 100 further to the rear, and when the pantograph mechanism 200 comes above the cassette mounting position, that is, the second detection position (front cassette drive position), the tray device 100 stop movement. Then, the pantograph drive mechanism again drives the pantograph mechanism 201 to lower the cassette 200 to a predetermined position.

In the state shown in FIG. 6, the pantograph mechanism 30 carrying the rear cassette 300 is located just above the rotary head drum 15. Here, the pantograph mechanism 301 is guided in a direction slightly lifted from the tray device 100, and the cassette 300 and the pantograph mechanism 3
01 is designed to prevent the rotating head drum 15 from colliding. A member that lifts the pantograph mechanism 301 is a guide member 16 that is attached to protrude from the inner side surface of the housing 10 . In other words, when the tray device 100 moves further inward from the state shown in FIG. There is. In this way, the cassette 300, that is, the pantograph mechanism is slightly raised when the cassette 300 is in the standby position.
This is because if the height of 0 is made low, the locus of movement of the tray device 100 will collide with the upper part of the rotary head drum 15. This is also because ventilation around the rotating head drum 15 is improved to reduce temperature rise, and the safety of the cassette tape is taken into consideration.

Next, by comparing the states of FIG. 5(A) and FIG. 6, it can be seen that the design is as follows. That is, FIG. 5A shows the tray device 100 in a pulled out state, and FIG. 6 shows the tray device 100 in a state inserted in the deepest position. A rack is provided at the lower edge of the tray device 100, and gears 23 and 24 mesh with the rack to drive the tray device 100 in the front-back direction. However, Fig. 5 (
In state A), only gear 23 is engaged, and in Fig. 6, gear 2 is engaged.
The gears 23 and 24 are arranged side by side in the tray movement direction so that only gears 4 mesh with each other, and both gears 23 and 24 are interlocked by an intermediate gear 22. Arranging the gears 23 and 24 in this way means that the tray device 10
This means that the total length of 0 in the front-rear direction can be shortened. If the drive gear of the tray device 100 were to be realized with one piece, the total length of the tray device 100 would have to be longer than in the embodiment. This is because it is necessary to mesh with one gear in both the states shown in FIG. 5(A) and FIG. 6.

As described above, being able to shorten the overall length of the tray device 100 not only reduces the weight and the load on the drive device, but also narrows the space from which the tray device 100 protrudes when loading a cassette. This makes it possible to reduce the surrounding space occupied. Conversely, in other words, even if the overall length of the tray device 100 is short, the movement stroke of the tray device can be increased. FIG. 7 representatively shows the pantograph mechanism 301, and also shows the pantograph drive mechanism.

Although various embodiments of the pantograph mechanism 301 are possible, this device has a basic configuration of first and second link levers 311 and 312 that cross in the shape of an x when viewed from the side. The cross points of the link levers 311 and 312 are connected by a shaft 313, and as a result, the link levers 311 and 312 can be placed in a state where both ends are brought together (ascended state) or separated (descended state) as shown in FIGS. 7(A) and (B). state). Link levers 321 and 31
1, the frame 101 of the tray device 100 and the mounting portion 402 of the cassette bottom support plate 401 are connected to the frame 101 of the tray device 100, respectively.
It is rotatably mounted on shafts 102 and 403. The rear end of the link lever 311 is engaged with a long hole 103 formed in the frame 101 via a pin 104.
The rear end of the link lever 312 is attached to the cassette bottom support plate 4.
Insert the pin 4 into the elongated hole 405 formed in the mounting part 404 of 01.
06. Thereby, the link mechanism can transport the cassette bottom support plate 401 to the lowered position and the raised position. Next, a pantograph drive mechanism that drives the pantograph mechanism 301 will be explained.

[0025] The pantograph drive mechanism has a link lever 3.
It has a rotating part 501 that presses against and pulls up the intermediary cam 320 that is rotatably attached to 12. The intermediate cam 320 is connected to the link lever 3 by a shaft 321.
The link lever 31 is rotatably attached to the middle of the link lever 31.
It moves up and down following the movement of step 2. In this case, the intermediary cam 32
0 is provided with an engagement pin 322. This engagement pin 322 engages with a hole 121 in a guide plate 120 that is attached to the frame 101 at intervals. this hole 1
21 has a groove shape and can perform a locking function of locking the ascending position of the pantograph mechanism and a regulating function of regulating the vertical movement locus and descending position of the pantograph mechanism. In other words, the engagement pin 321 of the intermediary cam 320 is connected to the hole 1.
21 and moves, the locus during vertical movement is restricted, and the lowering position is also determined by the lower end of the hole 121. Moreover, when the engagement pin 321 is raised,
It engages with a locking portion 121A formed in a step-like recess in the hole 121, and acts to prevent the pantograph mechanism from being inadvertently lowered.

The guide plate 120 further includes a guide groove 122.
is formed parallel to the previous hole 121, and this guide groove 122 is formed so as to cut out the guide plate 120 at the upper and lower ends. And this guide groove 122
The rotating tip of the intermediate cam 320 is designed to be positioned so as to overlap and intersect with the intermediate cam 320. Since the guide groove 122 cuts through in the vertical direction, the roller 502 provided at the tip of the rotating component 501 can pass through this groove 122. The roller 502 faces the guide groove 122 from above in the drawing.

The rotating component 501 is located at a fixed position inside the housing (
It is rotatably attached to the upper side of the passage of the tray device 100 by a shaft 503, and the rotary tip can move up and down along the guide groove 122. The state in FIG. 7(B) is before the pantograph drive mechanism operates,
The roller 502 is located above the entrance of the guide groove 122. When position detection information is received by the position detection means of the tray device 100, the rotating component 501 is driven and rotated by a drive means (not shown) about the shaft 503 as a fulcrum. here,
The roller 502 enters the guide groove 122 and the intermediate cam 32
When the intermediary cam 320 reaches the rotation end of 0, the intermediary cam 320 rotates slightly clockwise. For this reason, the engagement pin 322 of the intermediary cam 320 separates from the lock portion 121A and the hole 121
can be moved downward. Therefore, the rotating component 501 continues to rotate until it reaches the state shown in FIG. 7(A). With this rotation, the cassette bottom support plate 401 supported by the pantograph mechanism is lowered, and the cassette is placed in a predetermined mounting position. At this time, the hole 121 allows the intermediary cam 32 to
Since the position of the 0 engaging pin 322 is restricted, the position of the cassette is also determined as a result. Further, at this time, an elastic presser member that rotates together with the shaft 503 of the rotating member 501 presses the left and right center portions of the cassette from above.

FIG. 7A shows a state in which the cassette bottom support plate 401 is lowered, and in order to move from this state to a raised state, the rotating part 501 is rotated counterclockwise by a driving means (not shown). Ru. Then, since the roller 502 is engaged with the U-shaped recess of the intermediary cam 302, the intermediary cam 30
2 will be raised. Along with this, the link mechanism is activated and the cassette bottom support plate 401 is raised. Intermediary cam 3
Immediately before 20 enters the state shown in Figure (B), roller 502 presses intermediary cam 320 counterclockwise. As a result, the engagement pin 322 of the intermediary cam 320 moves to the lock portion 121A. Therefore, the cassette bottom support plate 4
01 is raised to the same position as the tray device 100, the link mechanism will not move inadvertently downward.

In FIG. 7, the pantograph mechanism and its drive mechanism on the left side as seen from the opening have been described, but a similar mechanism is provided on the right side, so that the left and right mechanisms operate synchronously.

FIG. 8 shows a pop-up mechanism for making it easier to handle the cassettes 200 and 300 from the outside when the tray device 100 is pulled out from the housing 10. When the tray device 100 is pulled out from the housing 10,
Due to the pop-up mechanism, the front cassette 200 and the rear cassette 300 are placed in a parallel state with their front ends facing upward. The arrangement relationship is designed such that the bottom surface of the rear cassette 300 can be inserted into the rear pop-up member 330 by sliding on the top surface of the front cassette 200.

FIG. 8A shows the cassettes 200, 300 supported by the front pop-up member 230 and the rear pop-up member 330, respectively, in a lifted state. Let's start with the front pop-up mechanism.

The pop-up member 230 has a shaft 231 as a fulcrum, and its front pivot end is vertically pivotable. A support portion 232 is formed at the front rotation end, and this support portion 2332 can lift the bottom of the cassette 200 . Although not shown, the shaft 231 is attached to the left side plate of the left and right side plates of the cassette bottom support plate. Therefore, when the cassette bottom support plate 240 is lowered by the pantograph mechanism 201 as shown in FIG. 5, it can be lowered together with the pantograph mechanism 201.

[0033] The frame 10 is attached to the inner wall of the frame 101.
A slider 260 that can move relative to the frame 101 in the same direction as the moving direction of the frame 101 is arranged. The slider 260 has a pin 111 protruding from the inner wall of the frame 101.
, 112 are engaged with the elongated holes 261 and 262. Furthermore, the slider 260 has a notch 264 that communicates with the elongated hole 261 and has an inclined portion at a position corresponding to the pop-up member 230. An attached pin 233 can penetrate. This is because the pop-up member 23
This is because it is necessary when 0 moves down together with the cassette bottom support plate 240 and returns to its original position.

When the tray device 100 is inserted into the housing 10, the state shown in FIG. 8(A) changes to the state shown in FIG. 8(B). Due to the movement, it becomes parallel to the tray device 100. This further changes the tray device 10 from the state shown in FIG. 8(B).
0 moves toward the back, pins 111, 112, and pop-up member 230 move backward together with respect to slider 230 (relatively, slider 260 moves forward), so pin 233 is cut. Notch 264
This is because there is no part to support the pin 233 from below as it hits the corner of the pin 233. . And in this state slider 2
60 also moves rearward together with the frame 101. Since the pop-up member 230 has a notch 264 (continuous with the end of the elongated hole 261 and released downward in an L-shape), the rotating tip rotates downward, and the cassette 200 is inserted into the cassette. It is placed on the bottom support plate 240.

On the other hand, when the tray device 100 is pulled out from the back, the frame 101 and slider 26
0, the pop-up member 230 moves forward as one. However, in the middle of the slider 260,
It is stopped by a stopper 18 provided at a fixed position inside the housing, and does not move forward. Then frame 1
01 moves forward, the slider 260 moves relatively backward, and the pin 233 of the pop-up member 230 is guided by the slope of the notch 264 and enters the elongated hole 261. This operation is performed by the pop-up member 2.
This is an operation in which the rotating tip of 30 is directed upward, and the state shown in FIG. 8 is taken. Next, the rear pop-up member 33
The pop-up mechanism that drives 0 and its operation will be explained.

The pop-up member 330 has an opening into which the cassette 300 can be inserted from the front, and the rear part has an opening that allows the cassette 300 to be inserted from the front.
1, it is rotatably supported, and the front part can be moved up and down. Although not shown, the shaft 331 is attached to the left side plate of the left and right side plates of the cassette bottom support plate. Therefore, when the cassette bottom support plate 401 is lowered as shown in FIGS. 5(B) and 7(A), it can be lowered together with it or raised again. In FIG. 8(A), the rotating tip of the pop-up member 330 faces upward, and in FIG. 8(B), it is parallel to the cassette bottom support plate. This is because the tip 333 of the lever 332 provided at the rear end of the pop-up member 330 is rotated by the protrusion 19 provided at a fixed position. That is, when the tray device 100 is pulled out the most, the pop-up member 330 is rotated clockwise by the protruding portion 19 about the shaft 331 as a fulcrum. Tray device 1
When 00 moves backward, the lever 332 is released from the protrusion 19.
In order to detach the pop-up member 330, the pop-up member 330 is rotated counterclockwise by its own weight or by a weak spring, and becomes parallel to the cassette bottom support plate.

Furthermore, a front pop-up mechanism including the above-mentioned pop-up member 230 and the like, and a pop-up member 33
The operation timing with the rear pop-up mechanism by 0 etc. is set as follows.

The front pop-up mechanism lifts up the front of the cassette 200 when it is in the position shown in FIG. When the state shown in (A) is reached, the rear pop-up member 330 is lifted. As described above, the operation of the pop-up mechanism is performed by the tray device 10.
By moving 0, it is obtained by guiding and colliding parts. From this, it can be understood that the force for lifting the cassette is due to the power of the motor 21 driving the tray device 100. If the front and rear pop-up mechanisms are operated simultaneously, a large load will be placed on the motor 21. Therefore, in this system, there is a time difference between the operation of the front and rear pop-up mechanisms (
After the front pop-up mechanism lifts the cassette, the rear pop-up mechanism lifts the cassette), thereby reducing the load on the motor 21 and allowing it to be driven by a low-power motor. Next, the pantograph drive mechanism will be further explained.

FIG. 9 shows the relationship between the pantograph drive mechanism and the cassette holding mechanism. The rotating component 501 rotates about the shaft 503, and its power is transmitted by a vertical control cam (not shown) driving the pin 511. The vertical control cam is attached to a side chassis inside the housing and is driven by a vertical motor (not shown).

A cassette holding part 520 is attached to the upper surface of the rotating part 501 and is rotatable about a shaft 512, with the tip of the cassette holding part 520 moving in the direction of further extending the tip of the rotating part 501. It stands out. A base end of the cassette holding part 520 is engaged with a rotating tip of the control plate 530. The base end of the control plate 530 is rotatably indicated by a shaft 531, and this shaft 531 is attached to a fixed position on the chassis inside the housing. The rotating tip of the control plate 530 is disposed on the upper surface side of the rotating component 501 and has a locking piece 532 formed therein. This locking piece 532 enters and engages a hole 513 formed in the rotating component 501.

The above mechanism follows the rotating part 501 driving the pantograph mechanism, and the cassette holding part 5
20 rotates about the shaft 512 and operates to hold down the cassette 200 or 300.

FIG. 10 is an explanatory diagram of the operation of the above mechanism. (A) shows the cassette before being pressed, (B) shows the cassette in the middle of being pressed, and (C) shows the cassette completely pressed to the cassette drive position. in this way,
As the rotating component 501 rotates, the distance M between the rotating tips of the control plate 530 and the rotating component 501 increases, since the control plate 530 has a different pivot point from that of the rotating component 501. Then, the proximal end of the cassette holding part 520 is rotated clockwise relative to the shaft 521 by the tip of the control plate 530. As a result, the rotating speed of the rotating tip of the cassette holding component 520 becomes faster than that of the rotating tip of the rotating component 501, and the cassette is pressed more firmly. The tip of the cassette holding part 520 is an elastic leaf spring, and the tip is provided with a roller for holding the cassette.

FIGS. 11 to 15 are views showing the external appearance of a chassis main body removed from the casing of a VTR to which the present invention is applied. FIG. 1 is a view seen from the front left side and shows the tray device 100 pulled out to the maximum from the chassis body, and FIG. 12 is a view seen from the right front and shows the tray device 100 pulled out to the maximum from the chassis body. The tray device 100 is shown in a pulled out state, and FIGS. 13 and 14 show a view from the front right side and a view from the front left side with the tray device 100 pushed in the deepest position.

The chassis body consists of left and right side plates 31L and 31.
The main components are a construction plate 32 installed on the front side of the left and right side plates 31L and 31R, and an installation plate 33 installed on the rear side. A tray device 100 is mounted on the side plate 31L.
A horizontal drive motor 21 (Fig. 1
3), gears 41 and 42 for driving members that are linked to the back and forth movement of the tray device 100, and a cam 4.
3 (visible in FIGS. 11 and 14). Further, a vertical drive motor 51 (visible in FIG. 14) for lowering and raising the cassette placed on the tray device 100 is attached to the side plate 31R. Furthermore, gears 52, 53, 54, 55 and a cam 56 are provided for transmitting the movement of the vertical drive motor 51 to various parts. The specific horizontal movement of the tray device 100 and the lowering and raising control means for the cassettes placed on the tray device 100 are as described above.

FIG. 15 shows the external appearance of the tray device 100. The tray device 100 has a frame-shaped tray frame when viewed from the top, and the outer rails of the side plates are guided by rollers provided inside the side plate chassis and are movable horizontally. Frames 131 and 132 on the left and right sides of the frame 101
The part that constitutes the is hollow, and the link lever of the pantograph mechanism mentioned above is housed inside. In the figures explained above, the lid 900 is provided on the pop-up member 330, but the lid 900 is attached to the casing 10.
It may be provided in the opening of the

[0046]

[Effects of the Invention] As explained above, according to the present invention,
When a plurality of cassettes can be inserted into the device in advance, the cassettes can be easily operated, and deterioration in design around the insertion portion can be prevented.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing an embodiment of the invention.

FIG. 2 is a perspective view showing an example of a state in which the device of the present invention is used.

FIG. 3 is a perspective view showing an example of a state in which the device of the present invention is used.

FIG. 4 is an explanatory diagram of the operation of the device of the present invention.

FIG. 5 is a basic configuration explanatory diagram showing first and second operating modes of a VTR to which the present invention is applied.

FIG. 6 is a basic configuration explanatory diagram showing a third operation mode of the VTR.

FIG. 7 is a configuration explanatory diagram shown to explain a pantograph mechanism and its drive mechanism in the VTR.

FIG. 8 is a configuration explanatory diagram shown for explaining the pop-up mechanism and its operation according to the present invention.

FIG. 9 is a configuration explanatory diagram showing a pantograph drive mechanism and a cassette holding mechanism.

FIG. 10 is an explanatory diagram of the operation of the pantograph drive mechanism and the cassette holding mechanism.

FIG. 11 is a perspective view showing one embodiment of the present invention from the left and right front.

FIG. 12 is a perspective view showing one embodiment of the present invention from the front right side.

FIG. 13 is a perspective view showing another operating state of the embodiment of the present invention from the front right side.

FIG. 14 is a perspective view showing another operating state of the embodiment of the present invention from the front left side.

FIG. 15 is a perspective view showing a frame used in an embodiment of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 10... Housing, 12... Opening, 13... Lid, 14... Main chassis, 15... Rotating head drum, 16... Guide member, 1
8...Stopper, 19...Protrusion part, 100...Tray device,
101...Frame, 102...Shaft, 103...Elongated hole, 104
...Pin, 111, 112...Pin, 121...Hole, 120...
Guide plate, 122... Guide groove, 131... Hollow portion, 132
...Stepped portion, 200, 300...Cassette, 201, 301...
Pantograph mechanism, 230, 330... Pop-up member, 231, 331... Shaft, 232... Support part, 233... Pin, 260... Slider, 261, 262... Long hole, 264
...Notch portion, 240, 401...Cassette bottom support plate, 3
32... Lever, 601... Tray drawer position detection lever,
611, 612...Micro switch, 613...Control unit,
900...Lid.

Claims (2)

[Claims] [Claim 1] A housing with a built-in tape recording and playback function, an opening provided in the front of the housing, and a tape that can be inserted and removed horizontally through this opening, and is provided on the upper surface of the front area and the rear area, respectively. a tray device in which first and second cassettes can be placed; and a tray device provided in a front area of the tray device, and when the tray device is pulled out and the front area is exposed to the outside of the casing, the first cassette can be placed. A front pop-up mechanism that lifts the tip of the cassette and moves it diagonally upward;
The tray device is disposed in the rear region of the tray device, and is loaded into the rear region with the tray device pulled out to the maximum and all of the front region and a part of the rear region exposed outside the housing. The second cassette is movable so as to lift its front end and face diagonally upward, and the inclination angle is approximately equal to the inclination angle of the first cassette by the front pop-up mechanism, and the top surface of the first cassette is moved to the second cassette. 1. A cassette loading device comprising: a rear pop-up mechanism that allows the bottom surface of the cassette to slide into the storage section. [Claim 2] A housing with a built-in tape recording and playback function, an opening provided in the front of the housing, and a tape that can be inserted and removed horizontally through this opening, and is provided on the upper surface of the front area and the rear area, respectively. a tray device in which first and second cassettes can be placed; and a tray device provided in a front area of the tray device, and when the tray device is pulled out and the front area is exposed to the outside of the casing, the first cassette can be placed. A front pop-up mechanism that lifts the tip of the cassette and moves it diagonally upward;
The tray device is disposed in the rear region of the tray device, and is loaded into the rear region with the tray device pulled out to the maximum and all of the front region and a part of the rear region exposed outside the housing. The second cassette is movable so as to lift its front end and face diagonally upward, and the inclination angle is approximately equal to the inclination angle of the first cassette by the front pop-up mechanism, and the top surface of the first cassette is moved to the second cassette. a rear pop-up mechanism in which the bottom surface of the cassette is slidably housed in the accommodating part; A cassette loading device comprising a lid having a pivot point on the upper side and a pivot end that pivots back and forth so as to open and close a path.