JPH0621066Y2 - Cassette loading device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of use] The present invention relates to a cassette loading device provided in a magnetic recording / reproducing apparatus such as a VTR, and more particularly to a cassette loading device with improved operability when attaching / detaching a tape cassette. It is about.

[Prior art]

As a conventional cassette loading device, for example, the one shown in FIG. 4 is known.

In the conventional cassette loading apparatus described above, one end of a leaf spring 4 is fixed to the side of a cassette holder 2 (cassette holding member) for mounting the tape cassette 1, as shown in FIG. The tip of a projection 5 (lock release member) made of synthetic resin provided on the other end of the cassette holder 2 protrudes into the cassette holder 2 through a switching groove 2a formed in the side portion of the cassette holder 2. It has been deployed. The projection 5 is for unlocking the cassette lid 1b of the tape cassette 1 by engaging a lock release button 1a provided on the tape cassette 1 mounted on the cassette holder 2. It can be elastically swung in the directions of arrows 6 and 10.

A cassette pressing spring 7 (cassette pressing member) for engaging the upper surface of the tape cassette 1 mounted on the cassette holder 2 with the upper part of the cassette holder 2 and pressing the tape cassette 1 downward to hold it. Is attached.

The pin 2b implanted on the side of the cassette holder 2 is
A mounting / dismounting position of the tape cassette 1 of the chassis 8 (position where the tape cassette 1 is mounted / dismounted with respect to the cassette holder 2 by an operator's manual operation) and a loading position (the tape cassette 1 held by the cassette holder 2 is a magnetic recording / reproducing apparatus). It is slidably fitted into an L-shaped guide groove 8a formed between the main body and a position where the main body is loaded.

Further, the pin 2b is slidably fitted in an elongated hole 9a formed in the drive lever 9 (drive mechanism). And
The drive lever 9 is rotationally driven by a motor (not shown).

Therefore, when the tape cassette 1 is mounted in the cassette holder 2 at the detaching position and the drive lever 9 is rotationally driven, the cassette holder 2 is first guided horizontally along the horizontal portion of the guide groove 8a. The moving direction of the tape cassette 1 is directed downward at the bent portion, and the tape cassette 1 is loaded into the magnetic recording / reproducing apparatus main body at the loading position at the lower end.

In the conventional cassette loading device having the above configuration, when the tape cassette 1 is mounted on the cassette holder 2,
First, the front side portion of the cassette lid 1b engages with the protrusion 5,
The protrusion 5 is pushed by the cassette lid 1b and is swingably driven in the direction of arrow 6. When the tape cassette 1 is further pushed into the cassette holder 2, the tips of the protrusions 5 are brought into sliding contact with the side portions of the tape cassette 1, and the tape cassette 1
When the stopper 11 and the stopper 11 are engaged, the protrusion 5 causes the leaf spring 4 to move.
Is driven to swing in the direction of the arrow 10 by the elastic biasing force of the above, and engages with the lock release button 1a provided on the side portion of the tape cassette 1. As a result, the lock of the cassette lid 1b of the tape cassette 1 is released.

Incidentally, even when the tape cassette 1 is taken out from the cassette holder 2, the protrusions 5 are formed on the tape cassette 1 similarly to the above.
It is pushed by the side portion and is rockingly driven in the directions of arrows 6 and 10.

On the other hand, as with the projection 5, the cassette pressing spring 7 engages with the upper front portion of the cassette lid 1b and the tip of the cassette pressing spring 7 when the tape cassette 1 is attached to the cassette holder 2. The cassette pressing spring 7 is pushed by the cassette lid 1b and is swingably driven upward. When the tape cassette 1 is further pushed into the cassette holder 2, the tip end portion of the cassette pressing spring 7 is brought into sliding contact with the upper surface of the tape cassette 1, and the tape is held at the position where the tape cassette 1 and the stopper 11 are engaged. Cassette 1
Is held downward on the cassette holder 2 by being pressed downward by the elastic biasing force of the cassette pressing spring 7.

[Problems to be solved by the invention]

However, in the conventional cassette loading device, as described above, the tape cassette 1 with respect to the cassette holder 2 is
Since the projection 5 and the cassette pressing spring 7 are always engaged with the main body of the tape cassette 1 and the cassette lid 1b when the tape cassette 1 and the cassette lid 1b are attached and detached, there is a problem that the tape cassette 1 and the cassette lid 1b are damaged.

Further, the feel transmitted to the hand of the operator supporting the tape cassette 1 when the projection 5 and the cassette pressing spring 7 are engaged with the tape cassette 1 and the cassette lid 1b may cause the operator to feel uncomfortable. Has become.

Therefore, the present invention has been devised in view of the above circumstances, and does not damage the tape cassette 1 or the cassette lid 1b when the tape cassette 1 is attached to or detached from the cassette holder 2, and further, is inconvenient for the operator. It is an object of the present invention to provide a cassette loading device that does not give a pleasant feeling.

[Means for solving problems]

In order to achieve the above-mentioned object, the main means adopted by the present invention is, as its gist, a cassette holding member which is driven and moved by a drive mechanism between a tape cassette attachment / detachment position and a loading position of a magnetic recording / reproducing apparatus. A cassette holding member provided on the cassette holding member for engaging with a tape cassette mounted on the cassette holding member to press and hold the tape cassette; and a cassette holding member provided on the cassette holding member, In a cassette loading device comprising a lock release member for releasing the lock of the cassette lid of the tape cassette by engaging with a lock release button provided on the tape cassette, the cassette holding member is a tape cassette attachment / detachment device. Only when the tape cassette is in the position, the cassette pressing member and the lock releasing member are engaged and An engaging portion for releasing pressure and the engaging portion are supported by the cassette holding member so as to be movable for a short distance in the moving direction, and the cassette holding member moves in accordance with the driving operation of the driving mechanism. Before the start, the engaging portion is moved in a direction away from the cassette pressing member and the lock releasing member to release the engagement between the engaging portion and the cassette pressing member and the lock releasing member, and the tape cassette by the cassette pressing member. And a disengagement member that causes the lock release member to unlock the cassette lid.

〔Example〕

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings to provide an understanding of the present invention. It should be noted that the following embodiments are examples of embodying the present invention and are not of the nature to limit the technical scope of the present invention.

Here, FIG. 1 shows the structure of the main part of the cassette loading apparatus according to the embodiment of the present invention, and FIG. 1 (a) shows the state in which the cassette holding member is at the tape cassette attaching / detaching position. FIG. 2 is a side view, FIG. 2 (b) is the same plan view, FIG. 2 is an exploded perspective view of an arrow A in FIG. 1 (a), and FIG. 3 is for explaining the operation of the cassette loading device. FIG. 1A is a side view showing a state in which the disengagement member is driven and moved by a slight distance from the tape cassette attachment / detachment position to the loading position,
FIG. 2B is a plan view of the same.

Further, the elements common to those of the conventional cassette loading apparatus shown in FIG.

In the cassette loading device according to this embodiment, FIG.
As shown in (b) and FIG. 2, pins 2c, 2d, 2e are planted on the side of the cassette holder 2, and the slider 12 (disengagement member) is attached to the pins 2c, 2d, 2e.
The long holes 12a, 12b, 12c which are bored in are slidably inserted. Then, the pins 2d and 2e
Are slidably fitted into L-shaped guide grooves 8b and 8c formed in parallel with the guide groove 8a of the chassis 8, respectively.

Since the long holes 12a, 12b, 12c are formed in parallel with the horizontal movement direction of the cassette holder 2 at a relatively short distance, the slider 12 is slightly parallel with the horizontal movement direction of the cassette holder 2. It can be moved a distance.

A coil spring 13 is stretched between the slider 12 and the cassette holder 2.
Is the tape cassette 1 with this coil spring 13.
Is always elastically urged toward the downstream side in the mounting direction (arrow 14 direction).

A pin 12d is planted at one end of the slider 12, and the pin 12d is formed in the guide groove 8a of the chassis 8.
It is slidably fitted into the elongated hole 9a of the drive lever 9 through the. Therefore, when the drive lever 9 is rotationally driven, the cassette holder 2 is driven to move together with the slider 12 with a slight timing shift.

When the cassette holder 2 is in the cassette attaching / detaching position (see FIG. 1), the slider 12 is engaged with the lower surface of the cassette pressing spring 7 to release the pressing of the tape cassette 1 on the upper surface thereof. The engaging portion 12e is provided so as to project. In addition, the cutout groove 12 formed in the central portion of the slider 12
An engagement portion 12g is projectingly provided on f. This engagement part 1
2g engages with the engagement piece 5a of the projection 5 protruding through the cutout groove 12f when the cassette holder 2 is at the cassette attachment / detachment position, and releases the pressing of the projection 5 on the tape cassette 1 side. It is for doing.

That is, the drive lever 9 is rotationally driven counterclockwise so that the pins 2d and 2e of the cassette holder 2 are guided into the guide grooves 8b and 8b.
When engaged with the end of d, the cassette holder 2 stops at the tape cassette 1 attachment / detachment position. When the drive lever 9 is driven to rotate further in the counterclockwise direction, only the slider 12 is moved along the pins 2c, 2d and 2e in the direction of the arrow 15.
When driven in the direction, the engaging portion 12e engages with the cassette pressing spring 7, and the engaging portion 12g engages with the engaging piece 5a of the protrusion 5.
Then, when the pressing of the cassette pressing spring 7 and the projection 5 toward the tape cassette is released, the rotation of the drive lever 9 is stopped.

On the contrary, when the drive lever 9 is driven to rotate clockwise,
Before the cassette holder 2 starts to move, the slider 12 moves in a direction in which the engaging portions 12e and 12g move away from the cassette pressing spring 7 and the engaging piece 5a of the protrusion 5 as the drive lever 9 rotates.

After that, the cassette holder 2 is moved together with the slider 12 toward the loading position of the tape cassette 1.

The cassette loading device according to the present invention is constructed as described above.

Therefore, when the operator mounts the tape cassette 1 on the cassette holder 2 at the attachment / detachment position of the tape cassette 1, there is nothing that engages with the main body of the tape cassette 1 or the cassette lid 1b. 1 can be smoothly attached to the casing holder 2.

When the drive lever 9 is driven to rotate clockwise and only the slider 12 is driven to move in the direction of arrow 14 by a predetermined distance (see FIGS. 3 (a) and 3 (b)), the engaging portion 12e and the cassette are moved. The holding spring 7 and the engaging portion 12g are disengaged from the engaging piece 5a of the protrusion 5.

As a result, the tape cassette 1 is pressed downward by the elastic biasing force of the cassette pressing spring 7 and held on the cassette holder 2. Further, the projection 5 that is rockingly driven in the direction of arrow 10 by the elastic biasing force of the leaf spring 4 engages with the lock release button 1a of the tape cassette 1, and the lock of the cassette lid 1b of the tape cassette 1 is released.

Thereafter, the drive lever 9 is further rotated clockwise to move the cassette holder 2 to the slider 12
At the same time, it is moved and driven toward the loading position of the tape cassette 1.

On the other hand, when the tape cassette 1 is taken out from the cassette holder 2, the tape cassette 1 reaches the attachment / detachment position of the tape cassette 1 by the procedure reverse to the above operation, so that the projection 5, the lock release button 1a, and the cassette pressing spring 7 are provided. The engagement between the tape cassette 1 and the tape cassette 1 is released, and the tape cassette 1 can be smoothly taken out from the cassette holder 2.

[Effect of device]

As described above, the present invention provides a cassette holding member that is driven and moved by a drive mechanism between a tape cassette attachment / detachment position and a loading position of a magnetic recording / reproducing apparatus, and the cassette holding member. To engage with a tape cassette mounted on the tape cassette, to hold the tape cassette by pressing it, and to engage with a lock release button provided on the cassette holding member and provided on the tape cassette. Thus, in the cassette loading device comprising a lock releasing member for releasing the lock of the cassette lid of the tape cassette, the cassette holding member and the lock releasing member are engaged with each other when the cassette holding member is in the tape cassette attaching / detaching position. The cassette holding device is provided with the engaging portion for releasing the pressing force to the tape cassette in combination and the engaging portion. Is supported by a material so that it can be moved a short distance in the moving direction, and the engaging portion is moved away from the cassette pressing member and the unlocking member before the movement of the cassette holding member is started in accordance with the driving operation of the driving mechanism. An engagement releasing member for moving the engagement portion to release the engagement between the cassette pressing member and the lock releasing member, and holding the tape cassette by the cassette pressing member and unlocking the cassette lid by the lock releasing member. Since the cassette loading device is characterized by being provided with, the tape cassette can be smoothly attached to and detached from the cassette holding member without engaging the cassette pressing member or the lock releasing member with the main body of the tape cassette or the cassette lid. The tape cassette can be attached and detached.

Therefore, the main body of the tape cassette and the cassette lid are not damaged, and the operator is not uncomfortable. Further, in the loading device according to the above configuration, after the tape cassette is held on the cassette holding member by the action of the cassette pressing member, or after the lock of the cassette lid is released, the cassette holding member is directed toward the loading position of the cassette. Since the tape cassette is always stably held on the cassette holding member since the movement is started, the tape cassette is accurately loaded into the magnetic recording / reproducing apparatus main body.

[Brief description of drawings]

FIG. 1 shows the structure of the main part of a cassette loading device according to an embodiment of the present invention. FIG. 1 (a) is a side view showing a state in which a cassette holding member is at a tape cassette attaching / detaching position, FIG. 2B is the same plan view, and FIG. 2 is A in FIG. 1A.
FIG. 3 is an exploded perspective view of the arrow view portion, and FIG. 3 is for explaining the operation of the cassette loading device. FIG. 3A is a view in which the disengagement member moves from the attaching / detaching position of the tape cassette to the loading position. Side view in the state of being driven by a slight distance movement, the same figure
FIG. 4B is a plan view of the same, and FIG. 4 is a perspective view of a main part of a conventional cassette loading device. [Description of symbols] 1 ... tape cassette 1a ... lock release button 1b ... cassette lid 2 ... cassette holder (cassette holding member) 5 ... projection (lock release member) 5a ... engaging piece 7 ... cassette Pressing spring (cassette pressing member) 9 ... Drive lever (driving mechanism) 12 ... Slider (engagement releasing member) 12e, 12g.

Claims (1)

[Scope of utility model registration request] 1. A cassette holding member which is driven and moved by a drive mechanism between a mounting / demounting position and a loading position of a tape cassette of a magnetic recording / reproducing apparatus, and a cassette holding member provided on the cassette holding member and mounted on the cassette holding member. By engaging with a tape cassette, a cassette pressing member for pressing and holding the tape cassette, and a lock release button provided on the cassette holding member and provided on the tape cassette,
A cassette loading device comprising a lock releasing member for releasing a lock of a cassette lid of the tape cassette, wherein the cassette holding member is engaged with the cassette pressing member and the lock releasing member only when the cassette holding member is at a tape cassette attaching / detaching position. And an engaging portion for releasing the pressing force to the tape cassette, and the engaging portion, which is supported by the cassette holding member so as to be movable for a short distance in the moving direction, and is accompanied by a driving operation of the driving mechanism. And before the movement of the cassette holding member is started, the engaging portion is moved in a direction away from the cassette pressing member and the lock releasing member to release the engagement between the engaging portion and the cassette pressing member and the unlocking member, An engagement releasing member for holding the tape cassette by the cassette pressing member and unlocking the cassette lid by the lock releasing member And a cassette loading device characterized by being provided with.