JPH0391143A - Cassette loader - Google Patents

Abstract

PURPOSE:To enable a loading/unloading operation with a single hand and to improve the operation convenience by displacing a holder inclined at a state where a cassette tray is drawn out compulsorily from an inclined state to a horizontal state when the holder is drawn in. CONSTITUTION:In a system in which the cassette tray loading a cassette C is drawn out from or drawn in a recording and reproducing device main body, the device is comprised in such a way that the holder 40 of the cassette tray 30 holding the cassette C is inclined at a state where the cassette tray 30 is drawn out, and also, it is displaced compulsorily from the inclined state to the horizontal state when the tray is drawn in. Therefore, the cassette C can be easily loaded or taken out to the inclined holder from the front of a drawn out cassette tray 30. In such a way, it is possible to perform the loading or take-out operation of the cassette for the cassette tray 30 with the single hand, and to simply 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/playback device such as a video tape recorder. The present invention relates to a tray-type cassette loading device in which a cassette tray on which a cassette is placed is pulled into the device main body and the cassette is loaded in 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 disclosed in Japanese Patent Application Laid-Open No. 182661/1982 uses a single cassette, as shown in FIGS. 25 and 26, and uses a recording/reproducing bag! l!
A cassette tray 4 for storing cassettes 3 is pulled out from a front panel 2 of 1.

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 sides of the cassette 3, attach it from above to the holder 5 of the cassette tray 4 pulled out from the front panel 2 of the recording/reproducing device 1, or cut out the attached cassette 3 on both sides. It is held through 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 mounting devices for recording and reproducing apparatuses have had the following problems from the viewpoint of operability when attaching and detaching the cassette.

That is, first, when inserting or removing a cassette from the pulled-out cassette tray, always hold both sides of the cassette;
The cassette must be kept horizontally and moved vertically relative to the cassette tray that has been pulled out.
The attachment/detachment operation was complicated, and the usability was very poor.

Second, the front panel of the recording/reproducing device gets in the way when attaching and detaching the cassette, making it difficult to attach and detach the cassette to and from the cassette tray.

Thirdly, it was not possible to easily attach and detach the cassette with one hand.

It is an object of the present invention to provide a cassette tray-type cassette mounting device that solves the above-mentioned problems.

(Means for Solving 1*!fi) The cassette loading device of the present invention focuses on the holder of the cassette tray that stores the cassette, and firstly, the cassette loading device is pulled out forward from the front panel of the main body of the recording/playback device. , a cassette loading device comprising a cassette tray for pulling a loaded cassette into the device body and loading it at a predetermined position, and a holder provided in the cassette tray for holding the cassette; The tray is tilted when pulled out from the main body of the recording/reproducing apparatus, and when the cassette is attached or removed and the cassette tray is drawn into the main body of the recording/reproducing apparatus, the cassette tray is forcibly displaced from the inclined state to the horizontal state. It is characterized by

Second, the cassette loading device of the present invention is pulled out forward from the front panel of the main body of the recording/reproducing device, and
In a cassette mounting device comprising a cassette tray for pulling a loaded cassette into the main body of the device and mounting it at a predetermined position, and a holder provided in the cassette tray for holding the cassette, the holder is an I-th holder on which the cassette is placed; and a holder provided below the first holder.

a second holder on which a second cassette having a smaller size and shape than the first cassette is placed;
In order to place the second cassette on the second holder, a notch having a size and shape corresponding to the second cassette is formed, and the cassette tray is tilted when pulled out from the main body of the recording/reproducing apparatus. When cassette 1 is attached or removed and the cassette tray is drawn into the main body of the recording/reproducing apparatus.

It is characterized by a configuration in which it is forcibly displaced from an inclined state to a horizontal state.

[Effect]

According to the cassette mounting devices of the first and second configurations described above, the holder, which is tilted when the cassette tray is pulled out, is forcibly displaced from the tilted state to the horizontal state when the cassette tray is pulled out. When the cassette is installed, the cassette and the holder can be separated, and the holder can prevent the cassette from being pushed up.

Therefore, the urging force of the holder in the opposite direction to the cassette holding mechanism can be eliminated, and the load on the cassette holding mechanism and the cassette can be reduced.

In addition, when using a front-loading type recording/reproducing device, the cassette can be easily attached and detached from the front of the cassette tray pulled out from the device main body onto the inclined holder with one hand.

Therefore, attachment and detachment operations are very simple and easy.

This makes it very easy to use.

Furthermore, according to the cassette mounting device having the second configuration described above, the first holder is tilted.

The small-sized second cassette can be easily positioned in the notch of the first holder.

Furthermore, by forcibly displacing the first holder to a horizontal state, the first holder does not become an obstacle when releasing the second cassette glue lock or opening the lid.

[Embodiment] FIGS. 1 and 2 are diagrams each showing a state in which a cassette is mounted in an embodiment of the cassette mounting device of the present invention.

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.

Bracket 20, cassette tray 30, holder 40, driving force transmitter 4i150 (see Figure 1 above), holder up/down mechanism 60 (see Figures 9 and 10), cassette holding mechanism 70 (see Figures 11 to 3) , variable mechanism 80 (Figs. 14 to 16), positioning mechanism 90 (Figs. 17 to I9)
It consists of

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 2o.

The holder 40 is a tape cover provided inside the cassette tray 3o.
This is the part where the set 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 3o.

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 4o 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 1o 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 5 mechanism constituting the cassette housing body 10 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 combined into one body) 2, Binion gear 56a, Transmission gear 5
It is composed of a right-side transmission system consisting of a transmission gear 57b, a pinion gear 56b, etc., and a left-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 51 → pulley 52 → belt 53 → pulley 54
The driving force of the loading motor 51 is transmitted to the pinion gear 56a in the following order: → reduction gear 55 (gear 55a → gear 55b) → pinion gear 56a → transmission gear 57a.

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

The rack gear 31 formed on the cassette tray 30 is attached to the binions of the left and right transmission system binions 56a and 56b.
a, 31b are meshed, and the binion gears 56a, 56b
As a result of the rotation, the cassette tray 30 slides back and forth (left and right in FIG. 2A).

Therefore, as shown in FIG. 3, the first digit received within the bracket 20! (drawn into the recording/reproducing device) and the second digit I! drawn out from 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 making a part of the binions of the binion gears 56a, 56b (or the rack gears 31a, 31b that mesh with them) have a tooth-missing configuration, the second position (extracted state) is changed to the first position (IIC retracted state). When the cassette tray 30 is pulled into the bracket 20 until the end, the binion gears 56a, 56b and the rack gears 31a, 31b of the cassette tray 30 disengage.

Even if the binion gears 56a, 56b rotate any further, the driving force of the loading motor 51 is not transmitted to the cassette tray 30 side.

Next, the cassette tray 30 has a substantially U-shaped shape when viewed from the top, and rack gears 31a and 31b that mesh with the pinions of the pinion gears 56a and 56b of the driving force transmission mechanism 50 are provided on the bottom surface of both sides of the cassette tray 30. It 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.
1a and 31b are prevented from being exposed and visible.

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 dirt, dust, etc. from adhering to ensure smooth sliding at all times.

As shown in FIGS. 2B and 2C, the holder 40 is connected to the cassette tray 30 on both its left and right sides by upper links 41a, 41b and lower links 42a, 42b, and is disposed 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 is dimensioned to be the same as the bottom surface of a standard cassette S such as a VH5 (trademark) cassette, and as shown in FIGS. 1 and 2A, this F holder 44 is With respect to the standard cassette S, a notch 44a is formed with a size equal to 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, the F holder 44 moves to the eject terminal (second position I!) in conjunction with the movement of the cassette tray 30. It is tilted in the vicinity.

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 48a provided at the tip of the slant lever 46 allows the bin 48 on the F holder 44 to
is driven in the direction of the I-th position, and the F holder 44 is moved to the bin 4
Lift up from the horizontal position with 8 as the center.

Rotated counterclockwise.

Now, the pin 47 on the slant lever 46 is located between the pivot point (bending part 2) and the tip of the stopper 45, but the position of the pin 47 approaches the tip of the stopper 45 (upwards in the figure). cassette tray 30), 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.

The standard cassette S is installed as shown in Figure 6.

This is done by inserting the standard cassette S onto the inclined F holder 44 of the holders 40 pulled out together with the cassette tray 30 from the front of the main body of the recording/reproducing apparatus. In addition, the cassette can be taken out using the tilting F holder 4.
This operation is performed by taking out the standard cassette S loaded in the cassette 4 to the front of the recording/reproducing apparatus.

Therefore, the operation of attaching and detaching the standard cassette S can be performed 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, as the cassette tray 30 moves from the second position to the I-th position, the pin 61 provided on the C holder 43 engages with the U groove 64a of the limiter 64.

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 2° via a pin 63a. 6
A spring 4c is stretched between the limiter 64 and the arm lever 63. As a result, due to the engagement of the pin 61 with the U groove 64a, the holder 40 is moved to the cassette tray 3.
From 0, it comes to be supported by this limiter 64 and arm lever 63.

In addition, a pinion gear 56a driving the tray 30,
A first cam groove 62 is formed on the inner surface of the arm lever 63, and a pin 63b of the arm lever 63 is inserted into the first cam groove 62.
is engaged. Therefore, pinion gears 56a, 56b
When rotates, the pin 63b is guided by the first cam groove 62, the arm lever 63 is rotated around the pin 63a, and the limiter 64 coupled to the arm lever 63 moves the pin 61° of the C holder 43, and therefore the holder 40. , Figure 10A
As shown in C to C, it is driven up and down.

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 pinion gears 56a and 56b.

Moreover, when the C holder 43 is lowered to a predetermined height.

Receiver on the main deck of the recording/playback device (not shown)
comes into contact with. Since the arm lever 63 rotates further,
The spring 64c expands, and its urging force causes the limiter 6 to
4 press-fits the C holder 43 to the receiving part.

Next, the cassette holding mechanism 70 will be explained.

As shown in FIGS. I1 to 13, the pinion gear 56
A and 56b are also formed with second cam grooves 71 on their outer surfaces. A pin 72a at the tip of a hold lever 72 rotatably supported by the bracket 20 by a pin 72G is engaged with the second cam groove 71. The pin 72b at the other end of the hold lever 72 is connected to the hold plate 7.
It is inserted into the elongated hole 73b of No. 3. 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 the pinion gear 56a (56b) rotates clockwise, the pin 72 is guided by the second cam groove 71, and the hold lever 72 rotates counterclockwise about the pin 72c. As a result, the hold plate 73 rotates counterclockwise around the pin 73a. the result.

As the C holder 43 descends, the leaf spring 74 releases the S semi-cassette S (FIGS. 12A and B) or the small cassette C (the 13th
A, B) is pressed 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 is also held down while the holder 40 is moving up and down. The width of the second cam groove 7e is widened so that the downward stroke of the hold plate 73 becomes large so that the holding plate 73 can be held down.

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 main body, the bottom surface of each cassette is taken as the reference surface.

When the tape running height is constant, the standard cassette S and the small cassette C have different cassette thicknesses, so it is necessary to change the reference plane height in this dual force set.

For this purpose, 1. For example, each reference pin 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 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 bin for the small cassette is located in the mounting area of the larger standard cassette S, and this reference bin 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, but the main body of the recording/reproducing apparatus itself becomes thicker and larger.

Because of the above, the reference surface height variable mechanism 80 of the holder 40 is required.

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 ai formed on one end side (upper side in FIG. 2A)
b, and the other end (lower middle side of FIG. 2A) is a rotation fulcrum 81c.
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 standard cassette reference pin that is 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 bin 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 St semi-cassette S is attached to the holder 40, the convex portion 81a is pressed by the back surface of the standard cassette S.
The select lever 81 rotates counterclockwise in FIG. I6 about the rotation fulcrum 81c.

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, i
A positioning mechanism 90 for the 6th small cassette C in which the lA semi-cassette S contacts the F reference bin 86 and its height is regulated.
I will explain about it.

As described 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 with respect to the main deck.

On the other hand, when the small cassette C is installed, the slider holder only engages the pin 85 with the slider 82 under the holder 40, and does not directly regulate the small cassette C itself. Is required.

Therefore, as shown in FIG. 2A and FIG.

The C holder 43 to which the small cassette C is mounted is provided with C reference pins 91a and 91b that correspond to and engage reference holes formed on both sides of the rear of the small cassette C.

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

3, 181!
! ! ! And as shown in FIG. 19, a stud 93 that projects downward 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 C is mounted on the C holder 43 through the notch 44a of the F holder 44, as shown in FIG. 17A, the reference hole of the small cassette C and the C reference pins 91a, 91
b are engaged with each other, and together with the notch 44a of the F holder 44, the C reference bins 91a and 91b position the small cassette C.

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 pins 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 mounted, the C reference bins 91a and 91b provided in the C holder 43 are pressed and rotated by the weight of the standard cassette S, as shown in Figure FB.
It will be lowered to a position where it will not interfere with the installation 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 4LOa and 410b provided on the left and right sides of the cassette tray 300.
are rotatably connected to the lower links 420a and 420b by a pin A, and to the lower links 420a and 420b by a pin C, respectively.

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

The left and right binion gears 560a and 560b have
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 binion gears 560a and 560b rotate, the slide plate 500 is also pulled forward together with the cassette tray 300.

Due to the difference in the number of teeth between the first and second pinions 561 and 562, the movement speed of the slide plate 500 is slow, so as shown in the second engineering drawing A, the pin A of the holder 400 is moved near the end of the second position. Protrusion 5 of slide 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 $563 is formed on the binion gear 560b. In this cam groove 563.

Bin 570C of hold lever 570 is engaged.

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 bottle 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 bin 585a as the hold lever 570 rotates counterclockwise, the bin 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 cassette is held down by a leaf spring 586 attached to the holder plate 580.

FIGS. 23 and 24 are diagrams showing the structure 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 pinion gear 6
The signal is transmitted to the rack 310 by the pinion 30 to drive the cassette tray 300.

The slide plate 500 is connected to a pinion gear 65 via a contact gear 640 driven by a 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.
Binion gear 6 so that the movement speed is slower than 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. Bin B of holder 400 is engaged with grooves 670 and 675, and bottle 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. In addition, 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. ing.

When the cassette tray 300 and the slide plate 500 move forward horizontally (move leftward in FIG. 24), the slide plate 500
has a slower movement speed. As a result, when the cassette tray 300 reaches the vicinity of the second position, the right side wall of the cam groove 670 of the cassette tray 300 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. Slide plate 50
Since a tapered portion is not formed in the rear cam groove 685 of 0, 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 11 rack 501 are opposed to the pinion gear 650), and the rotation thereof is caused by the rack 50.
1 will no longer be transmitted. As a result, the slide plate 500 is separated from the drive system and stopped there, and from then on,
Do not move to the right.

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 according to claims 1 and 2, the cassette tray for holding the cassette is of a tray type 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 is tilted when the cassette tray is pulled out, and is forcibly displaced from the tilted state to the horizontal state when the cassette tray is pulled out. The cassette can be easily loaded onto or removed from the holder.

As a result, the operation of loading or unloading the cassette onto or from the cassette tray can be performed with one hand, making the operation of loading and unloading the cassette very simple and easy.

Further, according to the cassette mounting device according to claim 2, the holder is constituted by a first holder and a second holder, and the first holder in which the notch is formed is tilted. Not only is it easy to install the first cassette, but also the second cassette can be positioned reliably.

[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. 9 is a diagram showing the configuration of the holder's up and down mechanism, FIGS. 10A to 10C are diagrams explaining the up and down movement of the holder, FIG. , B and Figure 3A and B 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, FIG. I6 is a plan view explaining the operation of the slider, and FIG.
7A and B are diagrams showing the operation of the reference pin 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 (2)

[Claims] (1) A cassette tray that is pulled out forward from the front panel of the recording/reproducing apparatus main body, and on which the placed cassettes are drawn into the apparatus main body and installed in a predetermined position; A cassette loading device comprising: a holder for holding a cassette tray; A cassette mounting device characterized in that it is configured to be forcibly displaced from an inclined state to a horizontal state when it is pulled into a main body of a recording/reproducing device. (2) a cassette tray that is pulled out forward from the front panel of the recording/reproducing apparatus main body, and on which the placed cassettes are drawn into the apparatus main body and mounted at a predetermined position; A cassette mounting device comprising: a first holder on which a first cassette is placed; a second holder for placing a second cassette having a small size and shape; A cutout portion having a size and shape corresponding to the above is formed, and the cassette tray is tilted in a state of being pulled out from the main body of the recording/reproducing apparatus, and the first cassette is attached/detached, and the cassette tray is A cassette mounting device characterized in that it is configured to be forcibly displaced from an inclined state to a horizontal state when it is pulled into a main body of a recording/reproducing device.