JPH0391144A - Cassette loader - Google Patents

Abstract

PURPOSE:To enable a loading/unloading operation with a single hand and to improve the operation convenience forming a notched part corresponding to a seconds mall cassette at a first holder comprising a holder, and loading the second cassette on a second holder via the notched part. CONSTITUTION:In a system in which a cassette tray loading a cassette is drawn in and out from a recording and reproducing device main body, the device is comprised of the first holder 44 in which a first cassette is placed on the holder 40 of the cassette tray 30 holding the cassette, and the second holder 43 on which the second cassette smaller than the first cassette is placed. And the first holder 44 is inclined at a state where the cassette tray 30 is drawn out from the device main body, and the first cassette is placed on the first holder 44, and the second cassette on the second holder 43, respectively. In such a way, it is possible to perform the loading or take-out operation of the first cassette on the cassette tray 30 with the single hand, and to simple and easily perform the loading/unloading operation.

Description

Detailed Description of the Invention [Field of Industrial Application] The present invention relates to a cassette mounting device used in a recording/reproducing device such as a video tape recorder, in which cassettes of different dimensions and shapes are attached/detached, and particularly relates to a cassette mounting device for use in a recording/reproducing device such as a video tape recorder. This invention relates to a tray-type cassette mounting device that slides out a cassette tray forward from a front panel, draws the cassette tray on which a cassette is placed into a device main body, and mounts the cassette at a predetermined position.

[Conventional technology]

Many front-loading configurations are implemented in cassette mounting devices of recording and reproducing apparatuses that use cassettes.

This front-loading type cassette mounting device is roughly divided into two types: a slot-in type and a cassette tray type.

A tray-type cassette mounting device in which a cassette tray for storing cassettes is pulled out from the front panel of the recording/reproducing device and the cassettes are attached to and removed from the holder of this cassette tray is disclosed, for example, in Japanese Patent Laid-Open Nos. 61-182661 and 1998- The one described in Japanese Patent No. 96859 is known.

The cassette loading device shown in Japanese Patent Application Laid-open No. 182661/1982 is shown in FIGS. 25 and 261! As shown in FIG. 1, a single cassette is used, and a cassette tray 4 for storing cassettes 3 is pulled out from the front panel 2 of the recording/reproducing device.

Notches 4a and 4b are formed in the left and right side walls of the cassette tray 4 having the holder 5. Holding the left and right Wj sides of the cassette 3, insert it into the holder 5 of the cassette tray 4 pulled out from the front panel 2 of the recording/reproducing device 1 from above, or cut the attached cassette 3 on both sides. It is held through the notches 4a and 4b and taken out above them.

Furthermore, the cassette mounting device disclosed in Japanese Patent Application Laid-Open No. 1-96859 has different shapes, such as a standard cassette 3A and a small cassette 3B smaller than the standard cassette 3A, as shown in FIG. This configuration uses a cassette.

In this case, the cassette tray 4 is pulled out from the front panel of the recording/reproducing apparatus, and different types of cassettes (standard cassette 3A, small cassette 3B) are loaded into the holders of this cassette tray 4.

The method of mounting the standard cassette 3A on the cassette tray 4 is the same as that of the above-mentioned cassette mounting device, but when mounting the small cassette 3B, the holder 5 of the cassette tray 4 is provided with a A concave portion 6 is formed, and a small cassette 3B is mounted in this concave portion 6 to regulate its position.

[Problem to be solved by the invention]

Conventional cassette loading devices for recording and reproducing apparatuses that load and unload cassettes of different types have had the following problems from the operational and structural standpoints when loading and unloading cassettes.

Firstly, since the concave portion 6 of the cassette tray 4 is not very deep, it is possible to easily regulate the position, but it is not reliable, and the movement of the cassette tray 4 or external impact may cause this to occur. There was a risk that the small cassette attached to the concave portion 6 would come off and be displaced.

Therefore, it was not possible to stably attach the small cassette to a predetermined position.

Second, the cassette tray 4 is
This has been an obstacle to making recording and reproducing devices thinner.

Thirdly, the cassette of the present invention is inconvenient because the cassette must be attached or removed from directly above the pulled-out cassette tray 4, making it impossible to easily attach or remove the cassette with one hand. The object of the present invention is to provide a cassette tray-type cassette mounting device that solves the above-mentioned problems.

[Means to solve the problem]

The cassette loading device of the present invention focuses on the holder of the cassette tray that stores the cassette, and is pulled out forward from the front panel of the recording/reproducing device main body, and the placed cassette is pulled into the device main body and held at a predetermined position. In a cassette mounting device comprising a cassette tray to be mounted and a holder provided in the cassette tray to hold the cassette, the holder includes a first holder on which a first cassette is mounted, and a first holder. and a second holder for placing a second cassette that is smaller in size and shape than the first cassette. A cutout portion having a size and shape corresponding to the second cassette is formed in order to place the second cassette, and the cassette tray is tilted in a state where it is pulled out from the main body of the recording/reproducing apparatus.

The present invention is characterized by a structure in which the first cassette can be attached and detached.

[Effect]

In the cassette mounting device configured as described above, a notch corresponding to the small second cassette is formed in the first holder constituting the holder, and the second cassette is inserted into the second holder through the notch. It is configured to be attached to the top of the
It can be reliably positioned at the inner peripheral edge of the notch.

The positioning of the second cassette utilizes the distance between the inclined first holder and the second holder which is fixed in a horizontal position, compared to the conventional case where a not-deep recess is used. 1. Positioning becomes reliable and stable.

Furthermore, since the second cassette is sufficiently positioned by the first holder, there is no need for the recesses conventionally formed in the cassette tray, which allows the thickness of the cassette tray itself to be reduced and the thickness of the main body of the device to be reduced. You can achieve even more.

Furthermore, the first cassette can be easily installed and removed with one hand from the front of the device, similar to a front-loading type recording/playback device, making the installation and removal operation extremely simple and easy. becomes.

〔Example〕

FIGS. 1 and 2 are diagrams respectively showing the state of an embodiment of the cassette mounting device of the present invention when a cassette is mounted.

Further, FIG. 3 is a diagram showing a state in which the cassette tray is drawn into the main body of the apparatus.

In each figure, 10 is a cassette housing body, which includes a bracket 20, a cassette tray 30, a holder 40, a driving force transmission mechanism 50 (see FIG. 1 above), and a holder up/down mechanism 60 (9th
, Fig. 10), cassette holding mechanism 70 (Figs. 11 to 13), variable mechanism SO (Figs. 14 to 16),
It consists of a positioning mechanism 90 (FIGS. 17 to 19).

The bracket 20 is composed of left and right side plates, a top plate, a bottom cutout, etc., and is attached to the main body of the recording/reproducing apparatus.

The cassette tray 30 is provided so as to be slidable back and forth with respect to the bracket 20.

The holder 40 is a part into which a tape cassette provided in the cassette tray 30 is attached.

The driving force transmission mechanism 50 is a mechanism that transmits the driving force from the motor in order to slide the cassette tray 30.

The holder up and down mechanism 60 is a mechanism that moves the holder 40 up and down.

The cassette holding mechanism 70 is a means for pressing the cassette placed on the holder 40 and preventing it from shaking.

The variable mechanism 80 changes the height reference plane of the holder 40.

The positioning mechanism 90 positions the small cassette.

The cassette housing main body 10 is roughly constructed as described above, and as shown in FIG. 1, when mounting a cassette, the cassette tray 30 is pulled out from the front panel of the recording/reproducing apparatus main body, and the cassette is placed on the holder 40. Then, the pulled-out cassette tray 30 is horizontally moved and retreated, and only the holder 40 is lowered from the cassette tray 30 that has been pulled in to a predetermined position, and the cassette mounted on the holder 40 is mounted at the predetermined mounting position. It looks like this.

The details of the means 1 mechanism constituting the cassette housing body 1o will be explained below.

First, the driving force transmission mechanism 50 includes a loading motor 51 attached to the bracket 20, a pulley 54, and a reduction gear 5.
5 (having a large-diameter gear 55a and a small-diameter gear 55b integrated into one body), pinion gear 56a, and transmission gear 57
The transmission system is composed of a right side transmission system consisting of a transmission gear 57b, a pinion gear 56b, etc.

In the right transmission system, as shown in Fig. 4.

Loading motor 5 → pulley 52 → belt 53 → pulley 54 → reduction gear 55 (gear 55a → gear 55b) →
The driving force of the loading motor 51 is transmitted to the pinion gear 56a in the order of the pinion gear 56a and the transmission gear 57a.

In the left transmission system, the transmission shaft 58 integrated with the transmission gear 57a→transmission gear 57b→binion gear 5
6b, and is synchronized with the right transmission system.

The pinions of the left and right transmission system pinion gears 56a and 56b include a rack gear 31a formed on the cassette tray 30.
, 31b are engaged with each other, and the cassette tray 30 slides back and forth (left and right in FIG. 2A) by rotation of the pinion gears 56a and 56b.

Therefore, as shown in FIG. 3, there is a first position housed in the bracket 20 (a state where it is pulled into the recording/reproducing device), and a second position where it is pulled out outside the bracket 20, as shown in FIG. (in a state pulled out from the recording/reproducing apparatus), the cassette tray 30 is slid in the front-back direction with respect to the bracket 20.

Here, by providing a part of the pinion of the pinion gears 56a, 56b (or the rack gears 31a, 31b that mesh with the pinions) with missing teeth, the second position II (drawn out state) is changed to the first position 1i! When the cassette tray 30 is pulled into the bracket 20 to the (retracted state),
The pinion gears 56a, 56b are disengaged from the rack gears 31a, 31b of the cassette tray 30, and even if the pinion gears 56a, 56b rotate any further, the driving force of the loading motor 51 is not transmitted to the cassette tray 30 side. There is.

Next, the cassette tray 30 has a substantially U-shaped shape when viewed from above, and rack gears 31a and 31b that mesh with the pinions of pinion gears 56a and 56b of the driving force transmission mechanism 50 are provided on the lower surface of both sides of the cassette tray 30. is formed.

As shown in FIG. 5, the outside of the rack gears 31a, 31b is covered with a cover part 32 which has a sufficient height compared to the rack gears 31a, 31b.
This prevents portions a and 31b from being exposed.

Here, the function of the cover part 32 is first to improve the degree of freedom in design and to prevent the danger of the cassette tray 30 being pulled in. Second, rack gear 3
This prevents contamination from the grease applied to 1a and 31b, and thirdly, prevents the adhesion of dirt and dust to ensure smooth sliding at all times.

As shown in FIGS. 2B and 2C, the holder 40 has its left and right sides connected to the cassette tray 30, and upper links 41a and 41b.
and are connected to each other by lower links 42a and 42b, and are arranged inside the cassette tray 30. Then, it is stored inside the cassette tray 30.

It is designed to move back and forth together with the cassette tray 30.

The holder 40 is then pulled out together with the cassette tray 30 from the front panel of the main body of the recording/reproducing apparatus, and the cassette is mounted onto the holder 40.

Here, the configuration of the holder 40 will be explained in detail.

As shown in FIGS. 1, 2, B and C1, FIGS. 6, 7, and 8 A to E, the holder 40 includes a lower C holder 43, which is plate-shaped, and a lower C holder 43 provided above the C holder 43. The F holder 44 is made up of a

This F holder 44 has dimensions between the bottom surface and the space of a standard cassette S, such as a VH5 (quotient 1%) cassette, for example.
And as shown in FIGS. 1 and 2A.

At the predetermined position, a notch 44a is formed in the standard cassette S, the size of which is the same as the bottom surface of a small cassette C such as a VH5-C cassette.

When the cassette tray 30 is guided by a mechanism (not shown) and pulled out from the front of the recording/reproducing apparatus main body, this F holder 44 is moved near the ejection end (second position) in conjunction with the movement of the cassette tray 30. It is inclined.

F rotatably attached to the cassette tray 30
The holder 44 is connected to a stopper 45 and a slant lever 46 that is slidably mounted on the cassette tray 30. Further, a spring 49 is applied to the slant lever 46 to bias it toward the right in FIG.

As shown in FIG. 8A, the pin 47 on the slant lever 46 is engaged with the elongated hole 45a of the stopper 45.

When the cassette tray 30 is driven in the eject direction (second position direction), the above mechanism also slides in the right direction in FIG.
The tip of the bracket 20 is a bent part 21 as a fixed part.
comes into contact with.

As shown in FIGS. 8B to 8E, the cassette tray 30
When further moves toward the second position, the stopper 45 rotates clockwise in the figure around the engagement portion with the bent portion 21, and the slant lever 46 moves as seen from the cassette tray 30 and F holder 44 side. Insert direction (first position direction)
to slide. At this time, the hook 46a provided at the tip of the slant lever 46 allows the bin 48 on the F holder 44 to
is driven in the first position direction, and the F holder 44 is moved to the first position.
It is rotated counterclockwise around point 8 so as to be lifted from the horizontal position.

Currently, the pin 47 on the slant lever 46 is located between the pivot point (bending portion 21) and the tip of the stopper 45, but the position of the pin 47 approaches the tip of the stopper 45 (shifting upward in the figure). ), the second cassette tray 30
The angle of inclination of the F holder 44 with respect to the amount of movement in the direction of the position increases, and if the stopper 45 were removed and the slant lever 46 was brought into direct contact with the bent portion 21 of the bracket 20 and stopped, the angle of inclination of the F holder 44 would increase. becomes steeply tilted, making it difficult to operate smoothly.

Therefore, in this operation, the stopper 45 holds the F holder 44
Its function is to make the slope smooth (gentle).

Next, the operation of attaching and detaching the standard cassette S and the small cassette C to and from the holder 40 will be explained.

To install the standard cassette S, insert the standard cassette S from the front of the main body of the recording/reproducing apparatus onto the inclined F holder 44 of the holder 40 pulled out together with the cassette tray 30, as shown in No. 6 @. It is done as it is done. Further, the cassette is taken out by taking out the standard cassette S mounted on the inclined F holder 44 toward the front of the recording/reproducing apparatus.

Therefore, the operation of attaching and detaching the 4jj1 semi-cassette S can be carried out extremely simply and easily with one hand, as in the case of a front loading type cassette housing.

In addition, the installation of the small cassette C is as shown in Figure 7.
A notch 44 formed in the inclined F holder 44 of the holder 40 pulled out together with the cassette tray 30
This is done by inserting the small cassette C into the container a from above.

In this case, the small cassette C is placed on the C holder 43 held horizontally by the cassette tray 30, and the notches 44a of the F holder 44 abut on both sides and the front and rear surfaces, positioning the small cassette C. do.

In addition, for taking out the small cassette C, use the F holder 4.
This can be done by taking out the small cassette C attached to the notch 44a of No. 4 upward from the notch 44a.

Next, the holder up/down mechanism 60 will be explained.

As shown in FIG. 9, the bin 61 provided in the C holder 43 engages with the U groove 64a of the limiter 64 as the cassette tray 30 moves from the second position to the first position.

The limiter 64 is rotatably coupled to the arm lever 63 via a pin 64b, and the arm lever 63 is rotatably supported by the bracket 20 via a pin 63a. 6
A spring 4c is stretched between the limiter 64 and the arm lever 63. As a result, the holder 40 is moved to the cassette tray 3 by the engagement of the bin 61 with the U groove 64a.
From 0, it comes to be supported by this limiter 64 and arm lever 63.

Also, a binion gear 56a that drives the tray 30,
A first cam groove 62 is formed on the inner surface of the arm lever 63.
is engaged. Therefore, the binion gears 56a, 56b
When the C holder 43 rotates, the bin 63b is guided by the first cam groove 62, the arm lever 63 is rotated around the bin 63a, and the limiter 64 coupled to the arm lever 63 rotates the bin 61 of the C holder 43, and therefore the holder 40. , 101st!
It is driven up and down as shown in IA to C.

At this time, as described above, the transmission of power to the cassette tray 30 side is disconnected due to the missing teeth of the binion gears 56a and 56b.

Further, when the C holder 43 descends to a predetermined height, it comes into contact with a receiving portion (not shown) on the main deck of the main body of the recording/reproducing apparatus. As the arm lever 63 rotates further, the spring 64c stretches, and the limiter 64 moves to C due to its biasing force.
The holder 43 is crimped onto the receiving part.

Next, the cassette holding mechanism 70 will be explained.

As shown in the first upper figure to FIG. 13, the pinion gear 56
A and 56b are also formed with second cam grooves 71 on their outer surfaces. In this second cam groove 71.

A pin 72a at the tip of a hold lever 72 rotatably supported by the bracket 20 is engaged by a pin 72C. A pin 72b at the other end of the hold lever 72 is inserted into a long hole 73b of the hold plate 73. The hold plate 73, which is urged counterclockwise in the figure by a spring 75, is rotatably supported by the bracket 20 via a pin 73a. Furthermore, a leaf spring 74 is fixed to the tip of the hold plate 73.

When pinion gear 56a (56b) rotates clockwise.

The pin 72 is guided by the second cam groove 71, and the hold lever 72 rotates counterclockwise around the pin 72c. As a result, the hold plate 73 rotates counterclockwise around the pin 73a. As a result, as the C holder 43 is lowered, the leaf spring 74 is released from the standard cassette S (FIG. 12A).
, B) or press the small cassette C (FIGS. 13A and B) onto the F holder 44 or the C holder 43.

Here, the cassette is ultimately held down by the leaf spring 74 of the hold plate 73, but the cassette can also be held down while the holder 40 is moving up and down.

The width of the second cam groove 71 is widened to increase the downward stroke of the hold plate 73.

Regarding the up-and-down mechanism and cassette holding mechanism of the holder 40, for example, the holder 4
A leaf spring may be provided at the tip of a lever or the like that moves the holder 40 up and down, so that the cassette is held down at the same time as the holder 40 is lowered.

However, in this case, it is necessary to make the lever for moving the holder 40 up and down considerably larger, which increases the width accordingly, and makes it difficult to freely adjust the timing of each mechanism.

On the other hand, if each mechanism is configured separately as described above, the timing of the vertical movement of the holder 40 and the cassette press can be freely set, and the cassette press can also be made smaller. .

Next, the reference surface height variable mechanism 80 of the holder 40 will be explained.

When the cassettes are installed in the predetermined mounting position of the recording/playback device, if the bottom surface of each cassette is used as the reference surface, and the tape running height is constant, standard cassette S and small cassette C are used.
Since the thickness of the cassette differs between the two, it is necessary to change the height of the reference plane in this double force set.

For this reason, for example, each reference bin for standard cassette S and small cassette C is provided on the main deck, and when each cassette is installed at a predetermined mounting position, the above-mentioned reference pin is directly engaged with the reference hole of the installed cassette. It is generally considered that the

In this case, by changing the heights of both the standard and small reference pins in advance, not only when the standard cassette S is installed, but also when the small cassette C is installed,
Each cassette can be maintained at the optimum reference surface height position corresponding to each cassette by each reference pin.

However, the reference pin for the small cassette is located in the mounting area of the larger standard cassette S, and this reference pin for the small cassette becomes an obstacle to mounting the standard cassette S at a predetermined height. I can't.

Therefore, when installing the standard cassette S, it is necessary to retract the reference pin for the small cassette to a predetermined position so that it does not get in the way of installing the standard cassette S.

Therefore, not only is a separate evacuation mechanism required for this purpose, but also the main body of the recording/reproducing apparatus itself becomes thicker and larger. It becomes necessary.

As shown in FIG. 2A, FIG. 3, and FIGS. 14 to 16, when the standard cassette S is installed, the standard cassette Convex portion 8 having a tapered surface that comes into contact with the back surface of S
1a, and a pin 81 formed on one end side (upper side in FIG. 2A)
b, and the other end side (lower middle side of FIG. 2A) is a rotation fulcrum 81e.
A select lever 81 is rotatably supported at.

The bottom of the C holder 43 has an elongated hole 82a connected to the pin 81b.
A slider 82 is provided which engages with the select lever 81 and rotates about a rotation fulcrum 82b in conjunction with the rotation operation of the select lever 81.

Moreover, as shown in FIG. 16, the C holder 43 itself has
A required number of holes 83 that are closed by the slider 82 when the slider 82 is not rotating and are opened when the slider 82 is rotating, and a reference bin for standard cassettes that are open regardless of the rotating movement of the slider 82. An insertion hole 84 is formed.

On the main deck side, a slider holder corresponding to 683 directly engages with a pin 85 and a reference hole formed on the bottom of the standard cassette corresponding to the insertion hole 84 to regulate the height position of the standard cassette S. An F reference pin 86 is provided.

Note that the slider 82 is always urged in the direction of closing the six 83 by a spring or the like (not shown).

When installing the small cassette C, press the select lever 81
Since the convex portion 81a of the C holder 4 is not pressed and the slider 82 does not rotate, as shown in FIGS. 2A and 3, the C holder 4
The hole 83 of No. 3 is in a closed state.

When the holder 40 is installed in a predetermined position as shown in FIG. The height of the small cassette C is regulated.

On the other hand, when the standard cassette S is attached to the holder 40, the convex portion 81a is pressed by the back surface of the standard cassette S, and the select lever 81 is rotated around the pivot point 81c.
It rotates counterclockwise in Figure 6.

In conjunction with this, the slider 82 also rotates counterclockwise about the rotation fulcrum 82b, and the hole 83 of the C holder 43 becomes open.

When the holder 40 is installed in a predetermined position as shown in FIG. descend to As a result, the standard cassette S comes into contact with the F reference pin 86, and its height is regulated.

Next, the positioning mechanism 90 for the small cassette C will be explained.

As mentioned above, when the standard cassette S is installed.

The F reference pin 86 on the main deck side directly engages with the reference hole on the lower surface of the standard cassette S, thereby regulating the height and position relative to the main deck.

On the other hand, when installing the small cassette C.

The slider receiver only engages the bin 85 with the slider 82 below the holder 40, and does not directly restrict the small cassette C itself. Therefore, some kind of positioning with respect to the main deck is required.

For this reason, as shown in FIG. 2A and FIG. 16, the C holder 43 to which the small cassette C is attached is fitted with reference holes formed on both sides of the rear part of the small cassette C. C reference bins 91a and 91b are provided.

As shown in FIGS. 17A and 17B, the C reference pins 91a and 91b are provided on support members 92a and 92b that are biased upward by springs (not shown), and are movable up and down.

As shown in FIG. 3, FIG. 18, and FIG.
3 is formed. On the other hand, an engagement hole (stud) 94 is formed on the main deck side corresponding to the position of the stud 93 when the holder 40 is mounted at a predetermined mounting position.

When the small cassette Cti-F holder 44 is mounted on the C holder 43 through the notch 44a, as shown in FIG. 17A, the reference hole of the small cassette C and the C reference pin 91a,
91b, and together with the notch 44a of the F holder 44, the C reference bins 91a and 91b are connected to the small cassette C.
position.

After the F holder 44 is moved to the horizontal state, it is positioned (with respect to the horizontal direction) using only the C reference bins 91a and 91b.

After that, when the holder 40 is moved to the predetermined mounting position,
A stud 93 provided on the lower surface of the C holder 43 engages with an engagement hole 94 of the main deck, and this holder 40 is positioned at a predetermined position with respect to the main deck.

Thus, the small cassette C is positioned at a predetermined position of the holder 40, which is positioned at a predetermined position on the main deck, and is therefore also positioned at a predetermined position on the main deck.

When the standard cassette S is installed, the weight of the standard cassette S causes a change in shape as shown in FIG. 17B.

The C reference bins 91a and 91b provided in the C holder 43 are pressed and rotated, and are lowered to a position where they do not interfere with the mounting of the standard cassette S.

FIGS. 20 to 22 are diagrams showing the configuration of a second embodiment of the cassette loading device of the present invention, respectively.

This second embodiment has the same basic structure as the above embodiment, and relates to a cassette mounting device exclusively for standard cassettes using a single holder that tilts when the cassette tray is pulled out.

Hereinafter, in this second embodiment, description of the same configuration as in the above embodiment will be omitted.

As shown in these figures, the holder 400 has upper links 410a and 410 provided on the left and right sides of the cassette tray 300.
b is rotatably connected to the lower links 420a and 420b by a pin A, and lower links 420a and 420b are rotatably connected to each other by a pin C.

Elongated holes 411a, 411b are provided at the connecting portions of the upper links 410a, 410b with the bin A, and the holder 400 can be rotated slightly around the connecting bin C with the lower links 420a, 420b. .

There are also slide plates 50 on both sides of the tray 300.
0 is set.

This slide plate 500 has rack gears 5 on both sides thereof.
01 and a protrusion 502 that engages with the bottle A of the holder 400.

Furthermore, the slide plate 500 supports the holder 400 on the lower side of the bin A to prevent the C holder 400 from lowering during horizontal movement, but when the retracting movement is completed, the lower support of the C holder 400 Released and C holder 4
00 becomes possible to descend.

And the left and right pinion gears 560a and 560b.

A first pinion 561 that meshes with the rack gear 310 of the tray 300 and a second pinion 562 that meshes with the rack gear 501 of the slide plate 500 are provided.

The first pinion 561 and the second pinion 562 have different numbers of teeth, and are set so that when the cassette tray 300 is pulled out, the slide plate 500 is moved at a slower speed than the cassette tray 300. ing.

When the pinion gears 560a and 560b rotate, the slide plate 500 is also pulled forward together with the cassette tray 300.

Since the moving speed of the slide plate 500 is slow due to the difference in the number of teeth between the first pinion 561 and the second pinion 562, the pin A of the holder 400 slides near the end of the second position, as shown in FIG. 21A. Protrusion 5 of plate 500
Contact with 02. Furthermore, by movement in the second position direction,
The bottle A is pulled rightward by the protrusion 502, rotates clockwise around the bottle C, and is lifted up, so that the holder 400 is tilted.

As shown in FIG. 22, a cam groove 563 is formed in the pinion gear 560b. A pin 570c of a hold lever 570 is engaged with this cam groove 563.

The hold lever 570 is rotatably supported by a bracket 585 by a pin 570a. Hold lever 5
70 is also rotatably coupled to a limiter 590 by a pin 570b at its tip. The limiter 590 is rotatably supported by the hold plate 580 by a bin 580a, and the hold plate 580 is supported by the bin 580a.
5a, it is rotatably supported by a bracket 585. Furthermore, a plate spring 586 for holding down the cassette is fixed to the tip of the hold plate 580.

When the binion gear 560b rotates clockwise, it is guided by the cam groove 563, and the bin 570c, and hence the hold lever 570, rotates counterclockwise around the bin 570a. When the holder 400 enters the inside of the bracket 585, the pin B is inserted into the U groove 581 of the hold plate 580.
is engaged in. As a result, when the hold plate 580 rotates clockwise around the pin 585a as the hold lever 570 rotates counterclockwise, the pin B
Therefore, the holder 400 is lowered.

At this time, since the holder 400 is attached to the tray 300 by the upper and lower links 410 and 420, it does not lean forward, but moves up and down while maintaining a horizontal state.

Further, a spring 595 is hung between the hold plate 580 and the limiter 590, and after the holder 300 has completely descended and abutted against the receiver 589, the limiter 590
rotates and presses the holder 300 by the force of the spring 595.

Note that the force setting is performed by a leaf spring 586 attached to the holder plate 580.

FIGS. 23 and 24 are diagrams showing the configuration of a third embodiment of the cassette loading device of the present invention.

This third embodiment has the same basic structure as the second embodiment, but differs in the method of driving the cassette tray.

As shown in FIG. 23, the holder 400 is held by the cassette tray 300 and the slide plate 500,
Cassette tray 300 and slide plate 500 are further supported by side brackets 660.

Rotation from the motor is transmitted to gear 610, and gear 620
The pinion gear 630 rotates through the
The cassette tray 300 is driven by the pinion 30 transmitted to the rack 310.

The slide plate 500 is connected to the pinion gear 65 via a contact gear 640 driven by the pinion gear 630.
0 is rotated, it is driven by the rack 501 of the slide plate 500 that meshes with the pinion of the pinion gear 650.

The moving speed of the slide plate 500 is the same as that of the cassette tray 3.
Pinion gear 6 is set so that the movement speed is slower than that of 00.
The number of teeth is set at 50.

Note that the left drive system is also driven at the same time by synchronizing the left and right sides by the connect gear 640.

As shown in FIG. 24, the cassette tray 300 has grooves 6.
70, 680, the slide plate 500 has a groove 675.
685 are formed respectively. Pin B of holder 400 is engaged with grooves 670 and 675, and pin A is engaged with grooves 680 and 685, respectively.

The grooves 670, 680 extend from the front to the rear (the 24th
It is formed to rise (from the middle skin to the right in the figure). In contrast, the groove 685 has a horizontal portion 685a and a vertical portion 685b. Further, the groove 675 located in front of the groove 685 (on the left side in the figure) has a tapered part 675c that rises from the rear to the front (towards the skin in the figure) in addition to a horizontal part 675a and a vertical part 675b. As described above, when the cassette tray 300 and the slide plate 500 advance horizontally forward (move leftward in FIG. 24), the slide plate 500
As a result, the movement speed is slower.

When reaching the vicinity of the second position, the right side wall of the cam groove 670 of the cassette tray 3°O presses the pin B of the holder 400. As a result, the pin B rises along the tapered portion 675c of the cam groove 675 of the slide plate 500. Since a tapered portion is not formed in the rear cam groove 685 of the slide plate 500, the holder 400 ends up being inclined.

On the other hand, the cassette tray 300 and the slide plate 500
When is moved to the right in the figure, it is pressed against the left side wall of the cam grooves 670, 680, and the pins B and A move horizontally along the horizontal portion 675a of the cam groove 675 and the horizontal portion 685a of the cam groove 685. .

When the predetermined position is reached, the missing teeth of the pinion gear 650 are opposed to the rack 501 (or the missing teeth of the rack 501 are opposed to the pinion gear 650), and the rotation is caused by the rotation of the rack 501.
will no longer be transmitted. As a result, the slide plate 5
00 is separated from the drive system, stops there, and does not move to the right thereafter.

On the other hand, since the force setting tray 300 is further moved to the right, the pins B and A descend along the vertical portions 675b and 685b of the guide grooves 675 and 685. When the predetermined position is reached, the missing teeth of the pinion gear 630 are connected to the rack 3.
10, the cassette tray 300 also stops there.

〔Effect of the invention〕

As explained above, according to the cassette loading device of the present invention, in the tray system in which the cassette tray for loading the cassette is pulled out or retracted from the main body of the recording/reproducing device, the holder of the cassette tray holding the cassette is placed in the first position. a first holder on which a first cassette is placed;
and a second holder provided below the holder to place a second cassette smaller than the first cassette, and the first holder is tilted when the cassette tray is pulled out from the main body of the apparatus. , the first cassette is placed on the first holder, and the first cassette is placed on the second holder, so it is difficult to install or remove the first cassette from the cassette tray. The operation can be performed with one hand, making attachment and detachment operations very simple and easy.

Furthermore, since the second cassette is mounted in a state where the first holder having the notch is tilted, the second cassette can be reliably positioned.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing a state in which a cassette is placed in an embodiment of the cassette loading device of the present invention, and FIGS. 2 A to C are a plan view, a right side view, The left side view, FIG. 3 is a plan view showing the cassette tray in a retracted state, FIG. 4 is a right side view illustrating the configuration of the driving force transmission mechanism of the cassette tray, and FIG. 5 is a part of the cover of the cassette tray. FIGS. 6 and 7 are diagrams each illustrating the operation of the holder when a standard cassette or a small cassette is inserted, and FIGS. 8A to 8E each illustrate the operation of the tilting mechanism of the holder. FIG. 9 is a diagram showing the configuration of the holder up-and-down mechanism, FIGS. 10A to C are diagrams explaining the up-and-down movement of the holder, FIG. 11 is a diagram showing the configuration of the cassette holding mechanism, and FIG. 12A , B and FIGS. 13A and 13B are diagrams showing the operation of the standard cassette or small cassette holding mechanism,
14 and 15 are diagrams showing the holder reference surface height variable mechanism when a small cassette or a standard cassette is attached, and FIG. 16 is a plan view illustrating the operation of the slider.
Figures 7A and 7B are diagrams showing the operation of the reference bin of the positioning mechanism when a small cassette and a standard cassette are installed, respectively.
18 and 19 are views showing the operation of the studs of the holder related to the positioning mechanism, and FIGS. 20A to 20A to 20A show the state of the second embodiment of the cassette loading device of the present invention when the cassette tray is pulled out. A plan view, a right side view, a left side view, or a front view; FIGS. 21A to C are diagrams for explaining the inclination and horizontal movement of the holder; FIGS. 22A to C are diagrams for explaining the vertical movement of the holder. 23A to 23E are a plan view, a right side view, a left side view, a front view, and a side view of the side bracket of the third embodiment of the cassette loading device of the present invention, showing the state when the cassette tray is retracted. , FIGS. 24A to 24A to 24A are diagrams for explaining the operation of the cassette tray, and FIGS. 25 to 27 are a perspective view and a plan view, respectively, showing a cassette loading device of a conventional recording/reproducing apparatus. S...Standard cassette, C...Small cassette, 10.
...Cassette housing body, 20...bracket,
30.300...Cassette tray, 40.400...
- Holder, 50... Driving force transmission mechanism, 60... Holder up/down mechanism, 70... Cassette holding mechanism, 80...
Variable mechanism, 500...slide plate.

Claims (1)

[Claims] A cassette tray that is pulled out forward from a front panel of a recording/reproducing apparatus main body, and on which a loaded cassette is drawn into the apparatus main body and mounted at a predetermined position; , a cassette mounting device comprising: a holder for holding the cassette; the holder is provided below the first holder for placing the first cassette; a second holder for placing a second cassette having a smaller size and shape than the cassette; A cutout portion having a size and shape corresponding to the second cassette is formed, and the first cassette is tilted in a state where the cassette tray is pulled out from the main body of the recording/reproducing apparatus, so that the first cassette can be attached or detached. A cassette loading device characterized by: