JP3254980B2 - Cassette adapter - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a cassette adapter of a magnetic recording / reproducing apparatus.

[0002]

2. Description of the Related Art In a VHS type cassette adapter,
As shown in FIG. 3, there is a type in which the C cassette is inserted into a cassette adapter of a full-size VHS cassette size and mounted on a VTR.

[0003] In this adapter, with the lid for protecting the tape of the C cassette opened, the adapter is mounted from the top of the adapter.
Close the lid of the adapter on the top and use it.

Further, the reel brake is released when the cassette is mounted on the adapter by a pin for releasing the lock of the C cassette implanted in the adapter.

Then, after closing the lid of the adapter, the VT
Position the tape at the same position as the full cassette so that the tape can be loaded properly when mounted on R
Pull out the tape from the cassette.

[0006]

When the same configuration as that of the VHS system is performed in the digital video format for business use, the spacing between the reels is close to each other between the S cassette and the M cassette. In the case of configuring an adapter for a cassette, there is a problem that connection of reel operation becomes very complicated when a reel is installed at a reel position of the M cassette.

Further, if the reel brake is released when the cassette is mounted on the adapter, the reel is not locked at the time of mounting the adapter, and there is a problem that the tape is slackened and damage is caused.

Further, since the difference between the heights of the cassette upper surfaces of the S cassette and the M cassette is only 1 mm, a lid cannot be formed on the upper surface of the S cassette with the adapter of the M cassette. There is a problem that it is very difficult to connect the identification terminal of the S cassette and the adapter of the erroneous erasure prevention mechanism to the position of the M cassette due to the inability to mount.

The present invention solves the above problems,
It is an object of the present invention to perform a reliable operation without causing tape damage or the like with a simple configuration using an adapter for an M cassette-shaped S cassette in a digital video format for business use.

[0010]

A cassette adapter according to the first aspect of the present invention is provided with a reel position of a small cassette and a cassette adapter.
Of the reel lock release
Means to expose it as it is,
For example, by providing a groove on the top of the adapter, VT
The R side can determine that the adapter of the S cassette is used, and the reel position and the reel brake position are moved to the position of the S cassette, so that the adapter can use the reel and reel brake of the S cassette. Characterized in that an adapter is configured.

According to a second aspect of the present invention, in the cassette adapter, the S cassette is inserted from the rear of the adapter, and the connection structure of the erroneous erasure determination and the connection structure of the identification terminal are integrally formed on the rear door. .

The cassette adapter according to claim 3 is a VTR
When the adapter is inserted into the VTR, the lever is arranged at the position where it engages with the lock release mechanism of the cassette lid of the M cassette above, and the lever arranged at the position where it engages with the cassette lid lock release lever of the S cassette is driven. The cassette lid of the S cassette is unlocked.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A magnetic recording / reproducing apparatus according to one embodiment of the present invention will be described below with reference to FIGS.

FIG. 1 is a plan view showing a cassette adapter corresponding to the professional digital video format.
Shows a detailed view of the insertion portion of the S cassette. As shown in the figure, the cassette cassette lid of the S cassette is formed by a mechanism for opening and closing the cassette cassette 1 on the left side, the cassette guide 2 on the right side, and the cassette cassette 2 on the right side for disposing the S cassette at the center of the adapter. , A lever 4 disposed at a position to be engaged with a lock release lever of a cassette lid of the M cassette on the VTR, and a lever 4 disposed at a position to be engaged with a lock member of a cassette lid of the S cassette,
It comprises a lever 5 connected to the lever 4, a spring 6 for urging the lever 5, and a rear door 7 for fixing the S cassette after inserting it.

The rear door 7 has a contact 8 in contact with the identification terminal of the S cassette, an identification terminal 9 for outputting an identification signal of the M cassette, a wire 10 for connecting the contact 8 and the identification terminal 9, and It comprises a member 11 that moves in accordance with opening and closing of the erroneous erasure prevention knob of the S cassette, and a lever 12 connected to the member 11 for opening and closing the erroneous erasure prevention window of the M cassette.

The operation of the above configuration will be described.
When inserting the S cassette into the cassette adapter, first, the rear door 7 of the adapter is lowered, and the S cassette is inserted with the S cassette insertion opening opened. At this time, the S cassette is inserted into a proper position by the cassette guides 1 and 2 arranged on the left and right.

Next, the rear door 7 is pushed upward to fix the S cassette. At this time, the contact 8, which is configured integrally with the rear door and reads the identification terminal of the S cassette, abuts, and the member 11 moves in accordance with opening and closing of the erroneous erasure prevention knob of the S cassette.

Since the contact 8 is electrically connected to the identification terminal 9 of the adapter through the wire 10, the information of the identification terminal can be read at the same position as the position of the identification terminal of the M cassette.

The member 11 is connected by a pin to a lever 12 for opening and closing the erroneous erasure prevention window of the M cassette, and opens and closes the erroneous erasure prevention window of the M cassette in accordance with the opening and closing of the erroneous erasure prevention knob of the S cassette. Can be.

Next, when the S cassette is inserted into the adapter, the lock member of the cassette cover of the S cassette does not operate because the lock release lever 5 is urged by the urging spring 6, and the cassette is not operated. The lid is not opened, and tape damage and dust entering into the cassette due to unnecessary opening of the lid can be suppressed.

When this adapter is inserted into the VTR, the lever 4 is driven by the unlocking lever of the cassette lid of the M cassette on the VTR, and the unlocking lever 5 connected to the lever 4 rotates, and the S cassette By driving the lock member of the cassette lid, the lock of the cassette lid of the S cassette can be released.

[0022]

As is apparent from the above embodiment, according to the first aspect of the present invention, when an adapter is used, the reel position of the S cassette and the position of the reel brake release member remain the S cassette. Therefore, there is no need to have any mechanism for connecting the reel operation and the reel brake releasing operation, so that the adapter can be configured with a very simple configuration.

According to the second aspect of the present invention, the contact for reading the identification signal of the small cassette, the means for connecting the identification terminal of the cassette of another size, and the knob for preventing erroneous erasure of the mounted small cassette. A means for opening and closing the door for preventing erroneous erasure of a cassette of a different size is provided integrally with the rear door, so that the above function is completed only with the rear door, so that the operation can be performed accurately with a simple configuration. be able to.

According to the third aspect of the present invention , the small cassette is provided with a mechanism provided on the magnetic recording / reproducing apparatus for unlocking the lid for protecting the magnetic tape of the cassette having a size different from the small cassette. S cassette cassette lid was closed by its own cassette lid and the cassette lid lock mechanism in a state of being inserted into the adapter by the cassette in conjunction with locking lid is provided with means for releasing for protecting the magnetic tape also Since the tape is locked in this state, tape damage does not occur, dust can be prevented from entering the S cassette, and this adapter can be inserted into the VTR.
When inserted, unlock the cassette lid of the S cassette.
Removal can be performed .

[Brief description of the drawings]

FIG. 1 is a plan view of a cassette adapter according to an embodiment of the present invention.

FIG. 2 is an explanatory diagram of an S cassette insertion portion in the cassette adapter according to one embodiment of the present invention.

FIG. 3 is an explanatory diagram showing a configuration of a VHS type C cassette adapter.

[Explanation of symbols]

1 A cassette guide on the left side for arranging the S cassette in the center of the adapter 2 A cassette guide on the right side for arranging the S cassette in the center of the adapter 3 An operation connecting member for opening and closing the cassette lid of the S cassette 4 The cassette lid of the M cassette 5 A lever connected to lever 4 6 A spring for urging lever 5 7 Rear door 8 Contact 9 Identification terminal 10 Wire rod 11 Opening / closing of mistaken prevention knob for S cassette 12 A lever that opens and closes the window for preventing erroneous erasure of the M cassette 13 V cassette C cassette 14 VHS cassette adapter 15 Tape pulled out from the C cassette 16 Drawer post 17 Cassette cover of the C cassette

Continuation of front page (58) Field surveyed (Int.Cl. ⁷ , DB name) G11B 23/04

Claims (3)

(57) [Claims] 1. Even after a small cassette is mounted on a cassette adapter of the same shape as a cassette of another size , the reel lock position of the small cassette and the release of the reel lock in the small cassette are replaced by the cassette adapter. cassette adapters magnetic recording and reproducing apparatus provided with means for exposing it from. 2. A contact for reading an identification signal of a small cassette, means for connecting an identification terminal of a cassette adapter having the same shape as a cassette of another size, and a knob for preventing erroneous erasure of the mounted small cassette. A cassette adapter for a magnetic recording / reproducing apparatus in which means for integrally opening and closing a door for preventing erroneous erasure of a cassette adapter of the same shape as a cassette of another size is provided integrally with a movable unit. 3. A small power supply provided on a magnetic recording / reproducing apparatus.
The mechanism for releasing the lid lock for protecting the magnetic tape of a different size cassettes and sets, magnetic provided with means for releasing is interlocked lock the cassette lid for protecting the magnetic tape of the small cassette Cassette adapter for recording and playback devices.