JPS60127562A - Cassette loading device - Google Patents

Abstract

PURPOSE:To eject cassettes different in size safely and surely by detecting the start of going of a cassette holder to lock a turning cover in the upward turning position. CONSTITUTION:A turning cover 44 which has covers 45 and 46 and has an L- shaped section is attached freely turnably to a cassette press-fitting plate 12 and is moved back and forth in the vertical direction by the press-fitting plate, and a cassette insertion hole 32 is closed from the inside by the cover 45 before insertion of a cassette 34 and is closed similarly by the cover 46 in the state where the cassette 34 is loaded to the set position. Consequently, a cover closing mechanism is unnecessary for ejection of the cassette 34 to simplify the structure. Further, a mechanism 51 is provided which locks the cover 44 in the upward turning position on a basis of the detection of a means which detects the start of going of a cassette holder 11, and the cover 44 is locked automatically in the position where the cassette 34 is inserted into the holder 11 from the insertion hole 32 and the cover 45 is turned upward.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention provides a cassette mounting device most suitable for use in a cassette type recording and reproducing device tca such as a cassette type video tape recorder, which After horizontally inserting the cassette into the sumo wrestler's holder from the cassette insertion slot provided in the cassette slot, move the cassette holder from the cassette insertion position to the cassette mounting position below, and install the cassette into the cassette mounting slot. At this time, the cassette insertion slot on the front panel is closed with the lid both before the cassette is inserted into the cassette holder and after the cassette inserted into the cassette holder is installed in the cassette installation position. This invention relates to a cassette mounting device configured to keep the lid closed.

[Background Art and its Problems] First, Fig. 1 shows a conventional example of a cassette-mounted N device for a cassette-type videotape recorder. After inserting the cassette (4) from (2) into the cassette holder (3) horizontally from the direction of arrow a, insert the cassette holder (3) into the cassette holder (3) below from the cassette insertion position as shown by the solid line. The cassette (4) is moved forward (downward) in the direction indicated by the arrow along an L-shaped locus to the mounting position, and the cassette (4) is mounted at the cassette mounting position.

At this time, the cassette slot (2) is blocked from the inside (
5), the upper end of which is rotatably attached to the front panel (1) via a fulcrum shaft (6).

First, as shown by the solid line (, cassette holder (3)
Before the cassette is inserted into the cassette, a downwardly hanging lid (5) closes the cassette insertion opening (2) from the inside. Next Vc1 As shown by the dashed line, the cassette (4) is moved from the cassette insertion slot (2) to the cassette holder (3) by the arrow a
When inserted horizontally in the direction of 1C%, press the ti (5) 'r valve at 4J and rotate it in the direction of arrow C around the fulcrum shaft (6) to open the lid. Next, the solid line As shown in (, after inserting the cassette, when the cassette holder (3) is moved forward (downward) in the direction of the arrow along the L-shaped movement locus to the cassette insertion position, fi +5) Y fulcrum shaft (6)
Rotate the lid in the direction of arrow d to close it again. Next, as shown by the dashed line, the cassette holder (3) is raised from the cassette mounting position to the cassette insertion position by moving back in the direction of arrow e along an L-shaped movement trajectory, and the cassette (4) is ejected to the cassette insertion position. To remove the lid, the lid (5) is rotated about the fulcrum shaft (6) in the direction of arrow C to open the lid again. Next, as shown by the solid line, when the cassette (4J) is removed from the cassette insertion slot (2) in the direction of the arrow !, the tft
The lid is configured to be rotated about the fulcrum shaft (6) in the direction of arrow d to finally close the lid.

However, in the conventional example configured in this way.

Cassette holder (3) Wo cassette! Drive the cassette (4) from the i loading position to the cassette insertion position in the direction of arrow e.
When discharging, it is necessary to automatically rotate the lid (5) in the direction of arrow C to open the lid. In order to automatically open this amount (5), a special lid opening machine must be provided separately from the reciprocating drive mechanism of the Y cassette holder (3).
The structure of the device as a whole is extremely complex.

[Purpose of invention? The present invention is a cassette loading device capable of correcting the above-mentioned defects, and moreover, is capable of selectively loading a plurality of cassettes of different sizes. It is intended to provide a device 1.

[Summary of the invention] The unexploded aA is capable of reciprocating between a cassette insertion slot cut out on the front panel, a cassette insertion position opposite to the cassette insertion slot, and a cassette mounting position provided below the cassette insertion slot. It consists of a cassette holder with a rectangular cross section and an open top surface, and a cassette pressure that is placed horizontally on the top of the cassette holder and is moved in parallel only in the vertical direction following the reciprocating movement of the cassette holder. N
&and.

A movable cage is located close to the cassette insertion slot and is pivotably supported on the cassette crimp plate in a single state, and has a first and second lid and has an L-shaped cross section; It has a detection means for detecting the insertion of a cassette or the start of forward movement of the cassette holder after this insertion, and a locking mechanism for locking the rotational end at the upward rotational position t based on the detection of this test+stage. However, when the cassette holder is returned to the cassette insertion position, the first
A lid is hung below the cassette crimp plate, and the first lid closes the cassette insertion slot from the inside, and when the cassette is inserted horizontally from the cassette insertion slot into the cassette holder, the cassette is inserted horizontally into the cassette holder. In the above episode Ji
IIl Suppress the first amount of the lid and rotate it upward to open the lid, and at the same time raise the second lid of the rotating lid above the cassette crimp plate, and place the cassette into the cassette holder. The detection means detects the insertion or the start of forward movement of the cassette holder after the insertion, and the locking mechanism locks the rotating lid at the rotational position tt, and the cassette holder moves forward to the cassette mounting position. When the cassette crimping plate is lowered, the rotary lid is lowered and the second lid closes the cassette insertion opening from the inside.

[Embodiment 1] Hereinafter, an embodiment in which the present invention is applied to a cassette loading device of a cassette type video tape recorder will be described with reference to FIGS. 2A to M4.

First, the drive system of the cassette holder of the cassette mounting device will be explained with reference to FIGS. 2A to 2C.

First of all, this cassette mounting device uses a cassette holder holder having a rectangular cross section with an open top surface, and a cassette mounting plate 121 placed on top of the cassette holder holder. The pair of left and right side plates Q~ of aυ extend vertically below the bottom plate I and also serve as rack plates, and an L-shaped rack extends from the vertical front end surface to the horizontal lower end surface of both side plates. Q51 is formed.Next, the chassis α is formed on both the left and right sides of the cassette holder aυ.
A pair of left and right lifting guide plates aη fixed perpendicularly to 6Jf
are provided with three guide grooves (181) symmetrically connected to both ranks Q51.The cassette holder all is attached to each side plate α of the cassette holder 7.
．． 3 guides I by 13 guide rollers Q9?
1Qe, and the cassette holder αV is guided by these guide grooves 081 between the cassette insertion position shown in FIGS. 2A and 2B and the cassette mounting position shown in FIG. 2C. The cassette holder (Ill's reciprocating drive mechanism 1) is rotatably attached to both the elevating guide plates aD. It has a pair of left and right drive binions that are engaged with both racks, and these drive binions (221) are mounted on the chassis (16J) and are driven by a motor (c) to drive a deceleration mechanism (241 and both drive binions (2).
21 (interlocking glaze) to drive forward and reverse rotation.
C @ made a friend.

Next, the cassette crimping plates a and cassette holders (IIJ
The upper surface of the plate is placed horizontally on the horizontal upper end surface of the plate 5 (both side plates t13). The cassette pressure bonding plate 04 is restricted from moving back and forth and from side to side between both elevation guide plates αη, and is configured to be able to move in parallel only in the up and down direction. In addition, this cassette crimp plate Q2+ has a pair of spring locking parts - provided on the left and right sides of the center arrow part in the front and back direction, and both g1 face plates of the cassette holder Qυ (131 in the front and rear direction). A pair of left and right compression springs 2!II vc, which are tension springs stretched between a pair of rigid spring locking portions provided in the cassette holder αυ, are also pressed onto the cassette holder αυ.

Next, we will explain the iron layer and ejecting operation of the cassette based on one or more structures. First, this cassette loading device has three types of cassettes of different sizes: large, medium, and small (hereinafter referred to as large and small).
(described as medium and small cassettes) <34a) (34b) (
34 can be selectively attached.

Next, as shown in Fig. 2A, cassette holder Q
When ll is moved 4 times (raised) to the cassette insertion position, the cassette holder fil is pressed against the MtJ plane spring/II.
It faces the cassette insertion port +321 provided in the IK.

The cassette holder 0υ also pushes the cassette pressure bonding plate α force upward.

Next, when installing the cassette, first % Figure 2A and 2B
As shown in the figure (1 person, medium, small case) (34a) (34b
) (34) is selectively inserted horizontally into the cassette holder aυ from the cassette insertion opening C321 in the direction of arrow a.

At this time, as shown in Figure 2B (these are large).

(34a) (34bJ (34c)
A central guide groove (a bag groove with one end closed) (36I) for preventing incorrect insertion provided along the center of the bottom surface 39 of the cassette holder aυ is inserted along the center of the top surface of the bottom plate α of the cassette holder aυ. Insert the large, medium, and small cassettes (34aJ (34b
In addition to preventing incorrect insertion of J (34c), these large, medium, and small cassettes C34a) (3
4b) (34c) is positioned in the left and right direction. And the cassette halter (large, medium, and small cassettes (3
4a) (When 34J (34c) is fully inserted,
These large, medium, and small power insects) (34a) (34bJ (3
The front end surfaces of the 4cJ on the front side in the insertion direction are in contact with the stopper field provided at the rear end of the bottom plate side of the cassette holder (IIJ), and these large, medium, and small cassettes (34a
) (34b) (The insertion position of 34 is regulated. When inserting this cassette, the vertical gap between the bottom plate Q4 of the cassette holder a sword) and the cassette crimp plate (+21) is large, medium, and small. (34a) (34b) (Since the upper and lower cylinders of aa are formed at the same height, these large, medium, and small cassettes (34a), (34b, and 34c) are crimped to the bottom plate of 0.41 mm. It is inserted with almost no vertical clearance between it and the plate (121).

Next, place the large cassette into the cassette holder (11) as described above.

When the completion of insertion of the medium and small cassettes (34a), (34b, and 34c) is detected by the switch provided on the cassette holder In Fig. 2B, it is driven to rotate forward in the direction of arrow g.Then, both racks 0 are driven by both drive pinions Qz.
5) is driven, and the cassette holder Qll is pulled horizontally to the rear of the cassette insertion slot c32, and is moved vertically downward in parallel in an L-shaped movement locus in the direction indicated by the arrow in Fig. 2B. After the cassette holder αυ is lowered to the cassette mounting position shown in FIG. 2C. and large, medium, and small cassettes) (34a) (34b)
A pair of left and right reels (not shown) in (34c) are engaged with the left and right reel stands (not shown) provided on the chassis (161) at the cassette mounting position, and are mounted on the chassis Q61. 1 cassette holder (I)
The bottom of the IJ & (141K relatively inserted T, -, multiple locating pins (these large, medium, small cassettes)
(34a) (34b) The large, medium, and small cassettes (34a) (34b) are placed and positioned.
The front cover (4υ) of bJ (34cJ) is rotated counterclockwise and engaged as shown in Fig. 2C.

On the other hand, as described above (the cassette holder 11); after being pulled in horizontally to the rear of the 6E cassette insertion slot 62, when this cassette holder Q]J is translated in parallel downward VC, as shown in FIG. 2C. As shown, the cassette crimp plate (121 is vertically translated (pulled down) downward in the direction of the arrow by the double pressure springs.Then, the cassette is pressed by the spring force of both crimp springs) fE eyebrow & (121 is large) ,During,
The top surface (4) of the small cassette (34a) (34b) (34c)
2j parallel to each other to remove these large, medium, and small cassettes (3
4aJ (34b) (34c) Y positioning bin (fixed on 41J).

When the switch detects that the installation of the guide set is complete, the motor (23I) is stopped.

Next, when ejecting the cassette, the motor (circle) is driven to rotate in the opposite direction, and the single drive pinion CI! 21 is driven in reverse rotation in the direction of the arrow in FIG. 2C. Then, both drive binions (2
Both racks (151) are driven by 21, and the cassette holder Uυ is lifted vertically above the cassette mounting position, and then horizontally pushed out by an L-shaped movement locus, the 2nd C
The cassette holder 0D is swung (raised) in the direction of arrow e in the figure, and is ejected to the cassette insertion position shown in FIG. 2B.

On the other hand, as described above, when the cassette holder 01) is lifted vertically above the cassette mounting position, the cassette crimping plate a is placed horizontally on both side plates of the cassette holder θV as shown in FIG. 2B. It is vertically translated (pushed up) upward in the direction of arrow 1 by the end face. When the completion of the bookmark set ejection is detected by the switch, the motor is stopped.

Next, as shown in FIGS. 2A to 4, the sword set insertion opening ct
The rotating lid that opens and closes from inside a''v and its locking mechanism will be explained.

First of all, this rotating lid (the cross section is XI, shapeless,
The first lid (object) and the second lid (461) are integrally provided with each other at a right angle to y.
is pivotably supported in the vertical direction via a horizontal fulcrum shaft 147JY on the cassette crimping plate Q7J at a position close to the cassette insertion port 62. In addition, at this time, the rotating lid (44
I is located inside a small notch (48) provided at the front end of the cassette crimp plate (121), and both ends (47a) of the fulcrum shaft U force are raised upward from both left and right edges of the cassette crimp plate a2J. There is also a pair of upright pieces (supported by the frame). Also, of the two ends (47a) of the fulcrum shaft (47), a return spring made of a torsion coil spring wound around the outer circumference of the fulcrum shaft (47) is attached. The movable lid (shun) is rotated in the direction of arrow m in Fig. 2A by the 5-cut.

Next, a locking mechanism 61) is provided on the upper part of the cassette pressure bonding plate α4, and is configured to lock in the upward rotation position of the rotation M(44)Y, which will be described later. And this locking mechanism (511 has a rotating lid (the first
Lid (locked piece 52 provided integrally on the back of 451)
It has a lock lever (53j) that is engaged with the lock lever (53j) and a detection lever (541) that is a detection means.
The front and rear longitudinal direction of 5a+ is a pair of left and right rising pieces (5b) which are integrally provided on the cassette crimp aa21 at both the right and left ends of the guide shaft 65) which is installed at the lower part of the central part of the frame and also serves as a fulcrum shaft. The front end (53a), which is slidable in the longitudinal direction within the elongated hole 6η, is the M+J m of the cassette crimp plate a2I.
α Notch t481 N is passed through the insertion hole of the rising piece raised upward from the rear edge of the FJ to the upper position of the notch (48I. Also, the rear end (53b) of this lock lever (531) A locking lever (53j is shown in Fig. 28 where the VC slides in the direction indicated by the arrow 0 in Fig. The detection lever is energized.Also, the detection lever is pivoted so that it can freely rotate in the front and rear directions with its vertical center at the rising piece 02 with a fulcrum shaft +621. The lower end (54B) of the barb is provided with a cassette crimping plate α21ic and is inserted through the lower part of the cassette crimping plate (t7!J). Edge (6
4aJ is rotatably supported in front of Rondo (goods) +4 (
64 is inserted into the long hole 151 of the lock lever (531 (D), which is biased towards the rear end (53b) side, and is passed through below the lock lever C531. A limiter spring (66J) consisting of a tension spring ρ) is stretched between l1lJj between the rear end (53b) of the lock lever and the rear end (53b) of the lock lever.
J Mitsutah Spring Kasumi is a stronger spring than return spring S1i.

Next, we will explain the opening/closing operation of the rotating lid (441) in the cassette insertion position based on one or more structures. First, as shown in Figure @2A, the cassette holder αυ is swung (raised) to the cassette insertion position. In the closed state, the rotating lid (the first lid of the season)
451 hangs vertically below the cassette crimping plate α, and the first cover (depending on the cassette insertion opening (32)
1 is closed from the inside. At this time, the first lid (4) is rotated and biased in the direction of arrow m by the return spring (4).
The tip (lower end) (45a) of the phrase is in contact with the lower edge (32aJVc) of the cassette insertion slot c32.

As described above, before inserting the cassette, the rotation is 1t44.
The first lid (45j) of No. 7 closes the cassette insertion port c121 from the inside.

Next, open the cassette insertion slot C shown by the solid line in Figure 2B.
Large, medium, and small cassettes (34aJ (34bJ (34c)'l:l: When horizontally inserting the large, medium, and small cassettes (34aJ (34bJ (34c)'l: l: arrows in the same direction selectively into the cassette holder Uv from 3 VC%). 34b) (34c) to open the rotating lid
1M+451Y Press in the direction of arrow a. Then the rotating lid (
The spring 44I returns to the direction of the arrow n, with the upward direction, about the fulcrum shaft (47), and is rotated by 90 degrees VC against the spring (501), and the cassette insertion slot (three openings) is opened. ,
A rotating lid (a second lid (46) with a hook) is vertically erected above the cassette pressure bonding plate Q21.

Next, as shown by the one-dot chain line in Fig. 2B (after inserting the cassette into the cassette holder aυ, the cassette holder starts moving in the direction of the arrow from the cassette insertion position to the cassette mounting position). When pulling the aυ horizontally backward from the cassette insertion position, the detection lever 1
The lower end (54a) of 541 is the large, medium, and small cassette (34a).
J (34b834c) is brought into contact with VC and rotated in the direction of arrow p. After this, the lower end of the detection lever 541 (54
a) Large, medium, and small cassettes (34a) (34b) (34
C) rides on the top surface (421).

Then, the arrow fJ+ of the detection lever 641 moves NwJ in the p direction.
The lock lever 641 is pushed out in the direction of arrow 9, and the lock lever 641 is also pushed back in the red mark q direction via the limiter spring Iff against the spring ■.Then, the front end (53a) of the lock lever t531 rotates. It is inserted below the locked piece 63 of the lid (goods) and automatically locks the rotating lid 144) in the upwardly rotated position as described above. At this time, the lower surface of the 5 side of the locked piece is formed into a slope (52a), and the front end (53a) facing the lock lever is formed on the slope (52a).
52a) While being depressed, the lock lever is pushed out in the direction of the arrow q and rotated in the direction of the arrow r about the guide shaft 6! It is further rotated in the direction of arrow n around the shaft (four) and locked. At this time, the tip (45a) of the first lid (4! Therefore, when the rotating lid (4) is fully locked and in good condition, the first lid (4th tip (45a) is large, medium,
Upper 1Jf of small cassette (34a) (34b) (34c)
fi (4'!J), and an appropriate gap is formed between the tip (45a) and the upper surface (4').

Next, as shown in FIG. 20, the cassette holder circle is lowered vertically following the above-mentioned horizontal insertion, and is completely moved to the cassette mounting position, and the large, medium, and small cassettes (34a
) (64b) (64c) When the 1r1 force set is installed in the mounting position, the cassette pressure N plate a follows the cassette holder (11) and moves in parallel (downward) perpendicularly in the direction of the arrow, as described above. Along with this, the one-turn lid (b)
is lowered vertically. Then, due to the vertical descent of this rotating lid, with this cassette installed, this time,
The cassette insertion opening 03 is closed from the inside by the rotation 1i141 IN, 21m 141iJ.

In this state where the cassette is attached, the first rotating lid t44J is locked, so the second rotating lid t44J is locked.
Even if the 61'2 cassette insertion slot C32+ is pushed in the direction of arrow a from the outside, this second cassette insertion slot C32+ cannot be opened.

Therefore, with this cassette installed, the cassette insertion slot 32
This can prevent the accidental insertion of another cassette.

Next, the cassette holder aυ is moved back (raised) in the direction of arrow e from the cassette mounting position to the cassette insertion position, and the large, medium, and small cassettes are inserted into the cassettes (34aJ) shown in FIG. 2B.
(34b) When (34c) is ejected to the cassette insertion position, as described above, the cassette crimping plate a4 follows the cassette holder Qll and is vertically moved (raised) in the direction of the arrow 1, and along with this, The pivoting lid is raised vertically. And due to the vertical rise of this rotation fi1441,
The cassette insertion slot (3Z is opened.

(large, medium, and small cassettes ejected to the cassette insertion position) (3
4a) (The rear end of 34J (34c) is the cassette insertion slot c.
It is pushed out three times. At this time, the tip of the 1N (45!) of the one-turn lid t441 (45a) can be used for large, medium, and small cassettes (343) (34b) (
34c) is locked in a state where it is lifted upward from the upper surface (421), so when ejecting the small cassette (34c), for example, the rear end lip of the small cassette (34ψ) is locked above its first lid (421).
This can definitely prevent inconveniences such as accidentally colliding with the tip (45aJ) and making it impossible to eject it.

At this time, as shown by the solid line in Fig. 2B, the cassette holder Uυ completes its rhythmic movement to the cassette insertion position.
The lower end (54aJ) of the detection lever 64I is removed from the upper surface 143 of the large, medium, and small cassettes (34a), (34b, and 34C).Then, the lock lever 531 is pulled back in the direction of the arrow l:r by the return spring fit. Well, before that @ (
53aJ is removed behind the locked piece 6z and 16 times!
(The lock 441 is released.) At the same time, the detection lever 541 is also moved back in the direction of the arrow U.Then, the unlocked rotating lid (41 is rotated in the direction of the arrow M by a return spring (501) When energized, the tip (45a) of the first lid 157 opens the large, medium, and small cassettes (34a) (34b).
(34c) is pressed onto the top surface (421).

Next, after ejecting this cassette, as shown in FIG. 2A, the human, medium, and small cassettes (34aJ(
34bJ (When 34b is pulled out in the direction of arrow f.

The rotating lid (4) is rotated by its own weight and the return spring (5Gl) in the direction of the arrow m that comes out downwards, the center L/c is 90° VC, the center L/c is Arrival (45
1, the three cassette insertion ports c are closed again from the inside 9111.

According to the cassette mounting device of the present invention configured and operated as described above, the cassette holder (11
(34a) (34b) (34a) (34b)
When discharging J(34), there is no need to automatically rotate the rotating lid (t44J'Y) to open the lid. No special lid opening mechanism is required to close the lid.

In addition, the cassette loading device of the present invention has large, medium, and small cassettes (34a) (34b) (34c) as described above.
It is constructed so that it can be selectively attached to the pt. Therefore, large, medium, and small cassettes (343)
(34b) and (340) differ widely, for example, as shown by the solid line in Fig. Even if the first lid (441) comes off by a stroke Ss backward from the tip (45a), the second lid (441) (upward rotation shown in Fig. It can be left locked in the moving position.

As a result, when this small cassette (34c) is ejected, the rear end part of the small cassette (34c) will not touch the rotating lid (the 4-angle first lid (4) or the second lid C6J). Therefore, it is possible to reliably prevent the inconvenience that the small cassette (43c) cannot be ejected, and the ejection of the small cassette (34) can be completely eliminated from the large, medium force set (34a) < 34b). Similarly, it can always be carried out extremely safely and reliably.
(When 34aJ is installed in the cassette installation position,
The rear end l191 of the large cassette C34a) can be lowered to a position extremely close to the front panel 61), and the rear end l191 of the large cassette C34a) can be lowered to a position extremely close to the front panel 811. The space S can be made very small.

Although one embodiment of the present invention has been described above, various effective modifications can be made based on the eight technical ideas of the present invention.

For example, in the embodiment, when the cassette holder aυ starts to move forward, the detection lever 541 is rotated and the lock lever (5a
Although the structure is configured so that it locks when the lid is rotated into the cassette holder αυ, it is difficult to insert large, medium, and small cassettes (34a (34b) (34c) into the cassette holder αυ. By rotating the detection lever 641, the locking levers 6 to Ic can be configured to similarly rotate the rotating lid t441 upwardly to a position tK and lock it.

In addition, in the embodiment, a mechanical detection means such as a detection lever was used as a detection means, but it is also possible to use an electric iron ['Y The detection means and locking mechanism referred to in the present invention can be modified in various ways, such as being able to perform 1C& by driving and locking the rotating lid 1441Y in the upward rotating position.

In addition, in the embodiment, the one-turning lid (441) is biased to turn in the direction of the arrow m in Fig. 2A by the return spring 601, but a weight is provided at L44 and so on.

WJ1 lid (451's own weight holds the rotating lid 1441 in the direction of arrow m)
It is also possible to configure the structure so that the rotation force is applied in the direction.

Further, the forward drive mechanism 211 of the cassette holder 01) according to the present invention, the mechanism for moving the cassette pressure bonding plate aI in parallel in the downward direction, etc. can be modified as desired.

[Application example]

The present invention is not limited to a cassette loading device #I for a cassette video tape recorder, but is applicable to various cassette recording and reproducing devices and cassette loading devices for information processing devices.

[Effects of the Invention] As described above, the present invention is mounted on the upper part of a cassette holder, and follows the back and forth movement of the cassette holder between the cassette insertion position and the cassette mounting position, and is parallel only in the vertical direction. A cassette crimping plate to be moved is provided, and a rotating lid having a YL-shaped cross section and a first and second lid is rotatably attached to the cassette crimping plate, and the rotating lid and the cassette crimping plate are used to move the cassette crimping plate in the vertical direction. Before inserting the cassette, the cassette insertion opening is closed from the inside by the first lid of the rotating lid, and one cassette is inserted into the cassette holder. When the cassette holder is installed in the cassette loading position, the second lid of the IBJ lid closes the cassette insertion opening from the inside ρ), so the cassette holder cannot be moved from the cassette loading position to the cassette insertion position. When moving backwards to eject the cassette, there is no need to automatically rotate the single-turn lid to open the lid, and there is no need for a special 1ftf'J procedure for that purpose. The structure of the entire device is extremely simple and extremely low cost.

Moreover, according to the present invention, there is provided a detection means for detecting the insertion of the cassette into the cassette holder or the start of forward movement of the cassette holder after this insertion, and (b) the moving lid is moved upward based on the detection of the detected arm f-. The cassette is horizontally inserted into the cassette holder from the cassette insertion opening, and the first lid of the rotating J bell is pressed by the cassette and rotated upward. At the position
The rotary lid is constructed so that it can be manually locked using the dirt locking machine aVc.

Therefore, according to the present invention, it is possible to selectively VC-mount a plurality of cassettes of different sizes, which is particularly effective in a single vehicle.For example, when ejecting a small cassette,
It is possible to reliably prevent the inconvenience of the small cassette colliding with the first or second lid of the rotating lid, making it impossible to eject the small cassette, and to ensure that the cassette is always ejected. It can be done safely and reliably.

[Brief explanation of drawings]

FIG. 1 is a vertical cross-sectional side view illustrating a conventional example of a cassette loading device for a cassette type video tape recorder. Figures 28 to 4 show an embodiment of a cassette mounting device for a cassette video tape recorder to which the invention is applied, and Figures 28 to 2c are side views in vertical section. , 3 and 4 are perspective views of the main parts. Also, in the symbols used in the drawings, av......Cassette holder 02)...
......Cassette crimp plate 0D...
...Oryo Drive Mechanism CI! 31...Motor (34a)...Large cassette (34b)...Medium power set (34CJ...Dashi cassette (44I...)・・・・Rotating lid (451・・・・・First lid (461・・・・・Second lid (471・・・・・Fulcrum shaft I51+ ......Lock mechanism...
・・・・Locked piece 531・−・・φ・−・Lock lever ・・・・・
・・・・Detection 1fj L/ /(-

Claims (1)

[Claims] The device is configured to be movable back and forth between a cassette insertion opening provided on the front panel, a cassette insertion position opposite to the cassette insertion opening, and a cassette mounting position provided below the cassette insertion opening, and has an open top surface. A cassette holder whose cross section is rectangular, a cassette crimping plate that is placed horizontally on the top of the cassette holder and moves in parallel only in the vertical direction following the reciprocation of the cassette holder, and the cassette insertion slot. The rotating lid is rotatably supported on the cassette crimping plate while being close to the cassette holder, and has first and second lids 2 having a YL-shaped cross section. The cassette holder has a detection means for detecting the start of forward movement of the cassette holder after the insertion, and a locking mechanism for locking the rotating lid at an upward rotational position fIt based on the detection by the detection means. When the holder is returned to the cassette insertion position, the first lid of the rotary lid hangs below the cassette crimp plate, and the first lid closes the cassette insertion opening from the inside, allowing the cassette to be inserted. Inside the cassette holder from the opening [When a cassette is inserted horizontally, the cassette is used to press the first M part of the rotating lid to rotate it upward to open the lid, and also to open the lid. The second cassette is erected above the cassette crimping plate, and the detection means detects the insertion of the cassette into the cassette holder or the start of forward movement of the cassette holder after this insertion, and the locking mechanism rotates the cassette. When the lid is locked at the rotational position and the cassette holder is moved to the cassette mounting position, the cassette crimping plate is lowered and the second lid is lowered to open the cassette insertion slot. A cassette loading device configured to close the lid from the inside.