JPH0817114A - Apparatus for loading cassette tape - Google Patents

Abstract

PURPOSE:To obtain a cassette tape-loading apparatus having a cassette insertion opening formed at a shorter side of a cassette holder by automatically opening/ closing a cassette lid body in association with the movement of the cassette holder to a recording/reproducing position. CONSTITUTION:When a tape cassette 1 is inserted from the side of a shorter side 1b to an insertion opening 14 and loaded in a cassette holder 3, a cassette lid body 1a enters a space between a guide face 5d and a bent part 5a of a guide plate 5. Then, when the holder 3 is descended, a cam follower 13b erected at a cam plate 13 moves in a cam groove 12 of an arm 9, and the cam plate 13 is rotated about a supporting shaft 13a to a position where the cam plate 13 covers a lock release element 1e of the cassette 1. The cam plate 13 presses the lock release element 1e thereby to release the lock of the lid body 1a. The guide plate 5 opens the lid body 1a. In this constitution, one is not necessary to change a direction of a video camera when manipulating the video camera. The danger of dropping the camera main body or cassette to insert the cassette is avoided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cassette tape loading apparatus for a recording / reproducing apparatus using a cassette tape, and more particularly to a camera and a video tape recorder (VTR).
It is suitable for an optimal cassette tape loading device when loading the cassette tape in the device in the integrated video camera.

[0002]

2. Description of the Related Art Generally, a cassette used as a recording medium of a VTR is provided with a cassette lid which can be opened and closed at a tape pull-out opening provided on the long side of the cassette for protecting the internal tape.

Conventionally, in a video camera in which a camera and a VTR are integrated, a pop-up type cassette tape loading device for inserting a cassette into a cassette holder from the surface on which the cassette lid on the long side of the cassette is provided is provided. The thing provided in the VTR part is known.

A conventional cassette tape loading device will be described below with reference to the drawings.

FIG. 11 is a perspective view of an example of a video camera using a conventional pop-up type cassette tape loading device. The video camera 30 is provided with operation buttons 35 on the upper surface of the main body, a camera 32 on the side surface, and a door 33 on the side surface facing the camera mounting portion. By opening the door 33, the cassette holder 3 and the cassette holder 3 as shown in the figure. The insertion opening 14 is exposed from the video camera 30. A storage battery 31 for driving a video camera is attached to a side surface of the camera 32 that faces the lens opening direction.

In the video camera having such a structure, when the cassette 1 is mounted in the cassette holder 3 at a predetermined position, the user must make the cassette lid 1a of the cassette 1 face the cassette insertion opening 14. The cassette 1 is held and inserted from the direction of the arrow 34, and the cassette 1 is pressed in the direction of the arrow 34 until the cassette 1 is completely attached to the predetermined position in the cassette holder 3. Until the cassette 1 is completely accommodated in the cassette holder 3 from the insertion opening 14, the cassette 1 has its two short sides 1b, 1d.
Will be guided to the two short sides of.

[0007]

In the video camera having the structure as shown in FIG. 11, when the cassette 1 is mounted on the video camera 30, the user inserts the cassette insertion opening 14 of the video camera 30 from the rear position 36. In order to carry out the cassette mounting operation by visually observing, and to operate the video camera 30 subsequent to the cassette mounting operation, the operation is carried out while visually observing the operation button 35 from the upper position in the figure 37. For this reason, the user needs to change his or her line of sight and the direction of the video camera by about 90 degrees during a series of operations from mounting the cassette to operating the video camera, which is inconvenient and, by extension, the video camera. There was a danger of dropping 30.

When the cassette 1 is moved closer to the cassette insertion opening 14 from the direction of the arrow 34, the cassette insertion opening 1
Since the storage battery 31 projects in the vicinity of 4, it is difficult to attach the cassette lid 1a of the cassette 1 to the cassette insertion port 14, and when the cassette 1 is taken out from the cassette holder 3, the storage battery 31 can be used by a user. Since the cassette 1 is touched, the usability is poor, and there is a risk of dropping the video camera 30 or the cassette 1.

Further, the cassette 1 is inserted into the cassette insertion opening 14
When the cassette 1 is moved to the predetermined position from the cassette holder 3, the cassette 1 has its two short sides 1b and 1d guided to the two short sides of the cassette holder 3,
The guidance effect cannot be obtained sufficiently. This is for the following reason. That is, the horizontal width of the cassette insertion opening 14 of the cassette holder 3 is set to be slightly larger than the long side length of the cassette 1 in consideration of the variation in the long side length of the cassette 1. There is always a gap between the two short sides of the cassette holder 3. The cassette 1 moves in the cassette holder 3 while the long side 1c is pressed by the user, and a frictional force is generated between the cassette 1 and the cassette holder 3 during the movement. Since the direction of this movement is orthogonal to the direction of the long side of the cassette 1, the cassette 1 is moved to the cassette holder 3
A large rotation moment is generated in the cassette 1 about the pressing point of the cassette while moving in the inside of the cassette 1, and the cassette 1 is rotated relative to the cassette holder 3 so as to fill the above-mentioned gap and is moved to a predetermined position of the cassette holder 3. Stop before you reach
The phenomenon of being caught in the cassette holder occurs.

Therefore, the present invention provides a cassette tape loading device in which a cassette insertion opening is provided on the short side of a cassette holder so that the cassette can be loaded and unloaded from the short side.

[0011]

In the cassette tape loading apparatus of the present invention for achieving the above object, a rotatable lid is attached to the long side of a rectangular parallelepiped, and the tape cassette can be inserted from the short side thereof. Cassette holder with various insertion ports,
A first link mechanism composed of first and second arms and a first link mechanism composed of third and fourth arms for supporting the cassette holder so that the cassette holder can be moved up and down, and is inserted into the cassette holder. Both ends are rotatably supported on one side of the cassette holder facing the front surface of the lid of the tape cassette, and a cut-and-bend portion that engages with the lid of the tape cassette inserted on the opposite side of the insertion opening is formed. And a lid which is engaged with the cut-and-bent portion by rotating the cassette guide plate in conjunction with the descending operation of the first and second link mechanisms. Characterized by opening and closing the body.

[0012]

In the present invention, since the cassette insertion opening is provided on the short side of the cassette holder, it is not necessary to change the direction of the video camera when operating the video camera.
Further, when the cassette is inserted, protrusions such as a storage battery do not get in the way, so that it is possible to prevent a risk of dropping the video camera body or the cassette. Further, since the cassette holder and the guide plate can mount the cassette on the cassette holder while guiding the long side of the cassette, the cassette is not jammed and a smooth mounting operation is possible. Further, after the cassette is mounted on the cassette holder, the cassette lid is opened / closed by the guide plate and the cut / bend provided on the guide plate in conjunction with the cassette loading / unloading operation on the VTR.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of the present invention will be described below with reference to the drawings. In this embodiment, the so-called VH
A case where the present invention is applied to a camera-integrated VTR using an S-C cassette will be described.

The cassette 1 applied to the cassette tape loading apparatus according to this embodiment is a so-called VHS-C cassette, and the cassette lid 1a for protecting the tape is a magnetic tape as shown in FIG. On the side where it is pulled out (the front surface of the cassette), it is arranged so as to be openable and closable around the pivot shafts 1f and 1g. And this cassette lid 1a
In order to prevent inadvertent opening when not in use, the cassette lid 1a cannot be opened unless the lock release piece 1e provided on the one side surface 1d of the cassette 1 is pressed. .

Further, as shown in FIG. 2, a recess 1h is formed on the bottom surface of the cassette 1 on the front side, and one short side 1d of the cassette 1 is formed.
To the other short side 1b are continuously provided.

The cassette tape loading device according to the present invention comprises a cassette holder into which the cassette 1 is inserted,
A cassette holder elevating mechanism for moving the cassette holder up and down and an opening / closing mechanism for opening and closing the lid of the cassette in the cassette holder are mainly configured.

FIG. 1 is a perspective view of an embodiment of a cassette tape loading apparatus according to the present invention, showing a state before the cassette 1 is loaded in the cassette holder 3.
FIG. 3 is a perspective view showing a state in which the cassette 1 is completely stored in the cassette holder 3, and then the descending operation is completed and the cassette 1 is mounted at the recording / reproducing position. FIG. 4 is a side view showing a state where the cassette 1 is completely stored in the cassette holder 3 as seen from the direction of the one side surface 1d of the cassette 1. FIG. 5 is a side view of the state in which the cassette 1 and the cassette holder 3 are integrally lowered, as viewed from one side surface 1 d of the cassette 1. FIG. 6 is a plan view of the state where the cam plate 13 described later presses the unlocking piece 1e of the cassette 1 as seen from the top surface of the cassette 1. FIG. 7 is a side view of the state in which the cassette 1 is completely stored in the cassette holder 3 as seen from the side surface 1b of the cassette 1. In FIG. 8, after the cassette 1 is completely stored in the cassette holder 3, the lowering operation and the opening of the cassette lid 1a of the cassette 1 are completed in synchronization with the lowering operation, and the cassette 1 is mounted at the recording / reproducing position. It is the side view which looked at the state from the direction of one side surface 1b of the cassette 1. FIG. 9 is a view showing an engagement state between the cassette lid 1 a of the cassette cassette 1 and the cut / bent portion 5 a of the guide plate 5.

1 and 2, the cassette holder 3
Is formed as a housing having a size capable of accommodating the cassette 1, and the cassette insertion port 14 is provided on one side surface on the short side thereof. , Can be inserted in the direction of arrow 2. Convex portions 7 and 8 are arranged above and below the cassette insertion port 14, and the convex portion 7 detects the total height of the cassette 1 and the convex portion 8 detects the above-mentioned concave portion 1h of the cassette 1. The insertion of the cassette 1 from other than the one side surface 1b can be prevented, and the cassette 1 is always inserted into the cassette holder 3 from a certain direction. Further, notches 3f and 3g are provided above and below the cassette insertion opening 14 so that the cassette 1 can be easily grasped when the cassette 1 is attached or detached.

In the cassette holder 3, a guide plate 5 is provided on one side facing the cassette lid 1a of the cassette 1 when the cassette 1 is mounted on the cassette holder 3, and support shafts 5b and 5c arranged on the cassette holder 3 are provided. Is rotatably arranged. This guide plate 5 is a guide surface 5 of the guide plate 5.
d and the one side surface 3d which is the long side of the cassette holder 3 facing this, the cassette 1 is inserted into the cassette insertion port 14
While moving from to the predetermined position of the cassette holder 3,
It guides the cassette 1.

Further, on the guide plate 5, on the side facing the cassette insertion port 14, the guide surface 5 is parallel to the guide surface 5d.
The cut and bent portion 5a is provided at a position separated from d by 2 to 3 mm. When the cassette 1 is mounted on the cassette holder 3 at a predetermined position, the cassette lid 1a enters the space provided between the guide surface 5d and the cut and bent portion 5a.

Inside the top surface of the cassette holder 3, a leaf spring is provided to prevent the cassette 1 from rattling when the cassette 1 is inserted into the cassette holder 3 and when it is mounted at the recording / reproducing position. Consisting of pressing pieces 4a, 4
b and 4c are provided.

On the lower surface 3a of the cassette holder 3, the position of the cassette 1 is regulated so that the cassette 1 does not shift inside the cassette holder 3 when the cassette 1 is mounted at a predetermined position on the cassette holder 3 and the guide plate 5 rotates. In order to do so, the convex portion 3b and the cut-and-raised portion 3c are provided. The convex portion 3b is engaged with a concave portion (not shown) on the lower surface of the cassette 1,
The cut-and-raised portion 3c contacts the 1i surface (see FIG. 2) rising from the lower surface of the cassette 1 to regulate the position of the cassette 1 so that the cassette 1 is not displaced inside the cassette holder 3.

On the front side surface 3e of the cassette holder 5, a cam plate 13 for pressing the unlocking piece 1e in order to unlock the cassette lid 1a of the cassette 1.
Is rotatably disposed on a support shaft 13a provided upright on the front side surface 3e of the cassette holder 5. Furthermore, the cam plate 1
3, a cam follower 13b is provided upright, and the cam follower 13b is provided in a cam groove 1 provided in a first arm 9 which will be described later and is used for raising and lowering the cassette holder 3.
2 is engaged.

Next, a cassette holder elevating device for moving the cassette holder 3 constructed as described above up and down to attach / detach the cassette 1 to / from the VTR will be described.

At the lower ends on both sides of the cassette holder 3, there are provided a link mechanism composed of a first arm 9 and a second arm 10 each having a central portion rotatably connected by a connecting shaft 11. A link mechanism including a third arm 21 and a fourth arm 16 which are rotatably connected by a connecting shaft 22 is provided.

One end of the first arm 9 is rotatably supported by a support shaft 9a at the rear end of a mounting wall 18a provided upright on the VTR chassis 18, and the other end thereof has an engagement pin. 9b is erected, and is engaged in a slidable manner in a long hole 6b provided in front of the lower end of the front side surface 3e of the cassette holder 3. In addition, the second arm 10
One end of the above is rotatably supported by a support shaft 10a on a tongue piece 19 formed behind one side surface 3e of the cassette holder 3, and an engaging pin 10b is erected on the other end. It is rotatably and slidably engaged in an elongated hole 15 formed in the mounting wall 18a. Another pair of two arm members, a third arm 21 and a fourth arm 1
6 is disposed on one side surface 3h side of the cassette holder.

As shown in FIG. 7, the third arm 21 is
Mounting wall 18 with one end standing on the VTR chassis 18
A long hole provided in front of the lower end of one side surface 3h of the cassette holder 3 while being rotatably supported by a support shaft 21a at a rear end of the cassette b and having an engaging pin 21b standing at the other end. It is engaged so as to be rotatable and slidable within 6a. Further, one end of the fourth arm 16 is rotatably supported by a support shaft 16b behind one side surface 3h of the cassette holder 3, and an engagement pin 16a is erected on the other end of the fourth arm 16 for mounting. It is rotatably and slidably engaged in an elongated hole 17 formed in the wall 18b.

Further, between the notch 21d provided on the protrusion 21c of the third arm 21 and the notch 26 provided on the rear side of the one side surface 3h of the cassette holder 3,
The tension spring 25 is stretched, and the tension spring 25
Always generates an urging force in the direction of contracting. Therefore, the engagement pin 21b of the third arm 21 extends in the elongated hole 6a in the direction toward the support shaft 16b of the fourth arm 16 and the engagement pin 16a of the fourth arm 16 extends. Inside the hole 17, it is urged in a direction toward the support shaft 21a of the third arm.

Further, in accordance with the above-described operation, another pair of two arm members arranged on the one side surface 3e of the cassette holder 3 are the first arm 9 and the second arm 10.
Also in the direction in which the engaging pin 9b of the first arm 9 approaches the support shaft 10a of the second arm in the elongated hole 6b, and the engaging pin 10b of the second arm 10 has an elongated hole. Within 15, it is urged in the direction of approaching the support shaft 9a of the first arm. Therefore, as shown in FIG. 1, FIG. 4, and FIG. 7, the cassette holder 3 is always biased to the raised state,
This means that the cassette 1 is on standby at a position where the cassette 1 can be loaded and unloaded from the cassette insertion opening 14 of the cassette holder 3.

When lowering the cassette holder 3, the upper portion of the cassette holder 3 is pulled by the tension spring 25.
It is performed by pressing in the descending direction against the urging force of. By this operation, the engaging pin 21 of the third arm 21 arranged on the one side surface 3h of the cassette holder 3
b in the elongated hole 6a in the direction away from the support shaft 16b of the fourth arm, and the engagement pin 16 of the fourth arm 16.
a moves in the elongated hole 17 in the direction away from the support shaft 21a of the third arm, and the tension spring 25 is gradually extended. Further, in accordance with the above-mentioned operation, the first arm 9 and the second arm 10 which are the other pair of two arm members arranged on the one side surface 3e of the cassette holder 3 also have the first arm. The engaging pin 9b of the second arm 10 is located in the elongated hole 6b in a direction away from the support shaft 10a of the second arm, and the engaging pin 10b of the second arm 10 is located in the elongated hole 15 of the first arm. Moves in a direction away from the support shaft 9a.

The cassette holder 3 which has been lowered by the above-mentioned operation is held by the lock member (not shown) provided on the VTR chassis 18 in a state where the lowering is completed as shown in FIGS. . In order to raise the cassette holder 3 held as described above, the lock member is opened, and the restoring force of the tension spring 25 returns the state to the completion of raising shown in FIGS. 1, 4, and 7. .

Next, a mechanism for unlocking the cassette lid 1a of the cassette 1 in the cassette holder 3 when the cassette holder 3 is lowered will be described. On the front side surface 3e of the cassette holder 5, the cassette 1
In order to unlock the cassette lid 1a, a cam plate 13 for pressing the unlocking piece 1e is rotatably arranged on a support shaft 13a provided upright on the front side surface 3e of the cassette holder 5. There is. Further, a cam follower 13b is erected on the cam plate 13, and the cam follower 13b is provided.
b is engaged with a cam groove 12 provided at one end of the first arm 9 used for raising and lowering the cassette holder 3.

The cam plate 13 is held outside the cassette insertion opening 14 as shown in FIGS. 1 and 4 when the cassette 1 can be attached and detached when the cassette holder 3 is completely raised. It is designed so that it will not interfere with the removal of item 1.

Further, one end of the above-mentioned second arm 10 is
A tongue piece 19 formed on the rear side of the front side surface 3e of the cassette holder 3 is rotatably supported by a support shaft 10a, and an engaging pin 10b is erected on the other end and formed on a mounting wall 18a. Since the cassette holder 3 is engaged in the slidable hole 15 so as to be rotatable and slidable, the cassette holder 3 starts the descending operation, and the engaging pin together with one end of the first arm 9 in which the cam groove 12 is provided. 9b moves in the elongated hole 6b in a direction approaching the support shaft 10a of the second arm. Along with this, the cam follower 13 b provided upright on the cam plate 13 moves in the cam groove 12. By moving the cam follower 13b, as shown in FIG.
Rotates about the support shaft 13a to a position where it covers the unlocking piece 1e of the cassette 1. By this operation, as shown in FIG.
As shown in FIG. 5, the cam plate 13 that was initially at the position shown by the broken line 27 in the figure rotates to the position shown by the solid line in the figure.
The unlocking piece 1e of the cassette 1 located at the position indicated by the broken line in the figure is guided by the slope 28 of the unlocking piece 1e and pressed to the position indicated by the solid line 29 in the figure, and as a result, the cassette 1
The lock of the cassette lid 1a can be released.

Further, when the cassette holder 3 is returned to the completed lifted state, the cam plate 13 for unlocking is released.
The cam follower 13b provided upright on the cam plate 13 moves in the cam groove 12 in the direction opposite to that when the cassette holder 3 descends, and the movement of the cam follower 13b causes the cam follower 13b to move as shown in FIGS. The plate 13 rotates about the support shaft 13a to the original position where it does not hinder the loading and unloading of the cassette 1.

Next, the cassette lid 1a in the cassette 1
The opening / closing operation of the cassette lid 1a after the lock releasing piece 1e is unlocked by pressing the cam plate 13 will be described.

In the cassette holder 3, a guide plate 5 is provided on one side facing the cassette lid 1a of the cassette 1 when the cassette 1 is mounted on the cassette holder 3, and support shafts 5b and 5c arranged on the cassette holder 3 are provided. Is rotatably disposed on the guide plate 5 on the side facing the cassette insertion port 14 in parallel with the guide surface 5d.
The cut and bent portion 5a is provided at a position separated by 2 to 3 mm. Further, as shown in FIG. 7, the one side surface 3h of the cassette holder is provided with the third arm 21 and the fourth arm 16 which are arm members having the above-described configuration.

Further, as clearly shown in FIG. 7, a support shaft 23a is erected on the protruding portion 21c of the third arm 21, and one end of the link member 23 is rotatably attached to the support shaft 23a. It is pivotally supported. Further, the other end of the link member 23 is rotatably supported by a support shaft 23b provided upright on one side surface of the guide plate 5 arranged on one side surface of the cassette holder 3.

When the cassette 1 is mounted on the cassette holder 3 at a predetermined position, the cassette lid 1a is guided by the guide surface 5d.
And enters the space provided between the cut and bent portion 5a. When the cassette holder 3 descends after the cassette 1 is completely attached, the engagement pin 21b of the third arm 21 arranged on the one side surface 3h of the cassette holder 3 is inserted into the elongated hole 6a.
Inside, the engaging pin 16a of the fourth arm 16 moves in the direction away from the support shaft 16b of the fourth arm, and within the elongated hole 17 in the direction away from the support shaft 21a of the third arm. In conjunction with this operation, the protrusion 2 of the third arm 21
The link member 23 engaged with the shaft 1a by the support shaft 23a also moves in a direction away from the support shaft 16b of the fourth arm, while the other end is engaged with the guide plate 5 by the support shaft 23b. As a result, the guide plate 5 is rotated about the support shafts 5b and 5c arranged on the cassette holder 3 in the direction to open the cassette lid 1a.

When the cassette 1 is completely attached to the cassette holder 3, the cassette lid 1a is engaged with the cut / bent portion 5a of the guide plate 5 as shown in FIG. Since a gap 5d is provided between the guide plate 5 and the cut / bend portion 5a, when the guide plate 5 is opened in the direction of the arrow 5e in the drawing which is the opening direction of the cassette lid 1a, the cassette lid 1a is opened. The cassette lid 1a is held in the closed state until the cutting and bending portion 5a abuts. During this period, the unlocking operation of the cassette lid body described above is completed, and thereafter, the cassette lid body 1a is fixed to the guide plate 5
It will rotate in the opening direction in conjunction with the rotation of.
At the time when the lowering operation of the cassette holder 3 is completed, as shown in FIGS. 3 and 8, the cassette lid body 1 a of the cassette 1 has the magnetic tape 2 arranged inside the cassette 1.
The lid is opened to a position sufficient to pull out 0.

The cassette lid 1a opened as described above
Is closed as follows with the raising operation of the cassette holder 3. The engagement pin 21b of the third arm 21 disposed on the one side surface 3h of the cassette holder 3 is moved in the elongated hole 6a in the direction of approaching the support shaft 16b of the fourth arm.
Further, the engagement pin 16a of the fourth arm 16 is provided with the elongated hole 17
Inside, it moves in a direction approaching the support shaft 21a of the third arm. In conjunction with this operation, the protrusion 2 of the third arm 21
The link member 23 engaged with the support shaft 1a by the support shaft 23a also moves toward the support shaft 16b of the fourth arm, while the other end is engaged with the guide plate 5 by the support shaft 23b. As a result, the guide plate 5 rotates about the support shafts 5b and 5c arranged on the cassette holder 3 in the direction of closing the cassette lid 1a. When the cassette holder 3 is completely raised, the cassette 1 is completely closed and can be taken out from the cassette holder 3 as shown in FIG.

An embodiment of a video camera using the cassette tape loading apparatus according to the present invention described above will be described below with reference to the drawings. FIG. 10 is a perspective view of an example of a video camera using the cassette tape loading device according to the present invention. The video camera 30 is provided with operation buttons 35 on the upper surface of the main body, a camera 32 on the side surface, and a door 33 on the side surface facing the camera mounting portion. By opening the door 33, the cassette holder 3 and the cassette holder 3 as shown in the figure. The insertion port 14 is a video camera 30.
More exposed. A storage battery 31 for driving a video camera is attached to a side surface of the camera 32 that faces the lens opening direction. In the video camera having such a configuration, when the cassette 1 is mounted at a predetermined position in the cassette holder 3, the user holds the cassette lid 1a of the cassette 1 so that the cassette lid 1a is orthogonal to the cassette insertion opening 14, Arrow 3
Insert from the direction of 4, and cassette 1 is cassette holder 3
The cassette 1 is pushed in the direction of the arrow 34 until it is completely installed in its predetermined position. Until the cassette 1 is completely stored in the cassette holder 3 from the insertion port, the cassette 1 is guided by its two short sides 1a and 1c to the two long sides of the cassette holder 3.

In the video camera having such a structure, the user operates the operation button 35 during the series of operations from mounting the cassette 1 to operating the video camera 30.
Since it can be performed only by visually observing the video camera 30 from the side of, and it is not necessary to change the direction of the video camera 30 during work, it is easy to use and there is no risk of dropping the video camera 30.

When the cassette 1 is approached from the direction of the arrow 34 to the cassette insertion port 14, the cassette insertion port 1
Since there is no projecting object such as the storage battery 31 in the vicinity of 4, the one side surface 1b of the cassette 1 can be easily attached to the cassette insertion opening 14, which is convenient and further, when the cassette 1 is taken out from the cassette holder 3, Since the storage battery 31 or the like does not touch the user's hand or the cassette 1, there is no risk of dropping the video camera 30 or the cassette 1.

Further, the cassette 1 is inserted into the cassette insertion port 14
When moving from 1 to the predetermined position of the cassette holder 3, the user presses one side surface 1d of the short side of the cassette 1,
Since the two long sides 1a and 1c of the cassette 1 are guided by the two long sides of the cassette holder 3, the guiding effect can be sufficiently obtained, and the cassette 1 can move in the cassette holder 3 in a predetermined manner. There is no risk that the cassette 1 will rotate and stop in the cassette holder 3 and will be caught when moving to the position.

[0046]

According to the present invention, since the shorter side of the cassette can be set to the insertion direction into the cassette holder, the cassette can be inserted into the cassette holder and the button operation of the video camera can be performed from the same direction. When inserting the cassette,
Since it can be performed from the direction where there is no protrusion such as a storage battery, it is possible to prevent the risk of dropping the video camera or the cassette.

When the cassette is moved from the cassette insertion port to a predetermined position of the cassette holder, the user presses the short side of the cassette, and the two long sides of the cassette are guided to the two long sides of the cassette holder. Therefore, the guide effect can be sufficiently obtained, and when the cassette moves to a predetermined position in the cassette holder, the cassette rotates and stops in the cassette holder and is caught. Since there is no fear, it is possible to provide a very convenient VTR.

[Brief description of drawings]

FIG. 1 is a perspective view of a main part showing a state of a cassette tape loading apparatus according to an embodiment of the present invention when a cassette is loaded.

FIG. 2 is a side view showing an example of a tape cassette used in the cassette tape loading device of the present invention.

FIG. 3 is a perspective view of essential parts showing a cassette mounting completion state of the embodiment.

FIG. 4 is a side view of an essential part showing a cassette loaded state of the embodiment.

FIG. 5 is a side view of an essential part showing a lowered state of the cassette holder of the embodiment toward a recording / reproducing position.

FIG. 6 is a plan view of a main part of the embodiment in a cassette loaded state.

FIG. 7 is a side view of an essential part showing a cassette loaded state of the embodiment.

FIG. 8 is a side view of an essential part showing a cassette mounting completion state of the embodiment.

FIG. 9 is a front view of a main part of the embodiment in a cassette loaded state.

FIG. 10 is a perspective view showing an example of a VTR-integrated video camera using the same embodiment.

FIG. 11 is a perspective view showing an example of a conventional VTR integrated video camera.

[Explanation of symbols]

 1 Cassette Tape 1a Cassette Lid 3 Cassette Holder 5 Guide Plate 5a Cut / bend Part 9, 10, 16, 21 Arm 13 Cam Plate 14 Insertion Port

Claims (2)

[Claims] 1. A cassette holder having a rotatable lid attached to the long side of a rectangular parallelepiped and having a slot into which the tape cassette can be inserted from its short side, and a vertically movable holder for supporting the cassette holder. And a first link mechanism composed of first and second arms and a first link mechanism composed of third and fourth arms for facing the front surface of the lid body of the tape cassette inserted into the cassette holder. Both ends are rotatably supported on one side of the cassette holder, and a cassette guide plate having a cut and bent portion that engages with the lid of the tape cassette inserted on the opposite side of the insertion opening is provided.
A cassette characterized by rotating the cassette guide plate in conjunction with the lowering operation of the first and second link mechanisms to open and close the lid engaged with the cut and bent portion. Tape loading device. 2. The tape cassette has a lock releasing piece on its short side for releasing the lock of the lid body by pressing, and a cam plate for pressing the lock releasing piece by rotating is provided on the cassette holder. The lock of the lid body is released by pressing the lock release piece by rotating the cam plate in conjunction with the descending operation of the second link mechanism and the second link mechanism. Cassette tape loading device.