JPH0124791Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a recording and reproducing device for writing and reading information, particularly to a recording and reproducing device using a magnetic disk.

In this type of recording/reproducing apparatus, one having a structure including a cartridge holder that is movable both horizontally and vertically is being considered. With this structure, the magnetic disk cartridge is inserted horizontally toward the cartridge holder, and when the tip of the magnetic disk cartridge hits the back of the cartridge holder, the magnetic disk cartridge is inserted through the magnetic disk cartridge. The cartridge holder is pushed slightly in the horizontal direction, and when the cartridge holder reaches a predetermined position, it is lowered to a position where recording and playback is possible.

By the way, in the conventional type, when inserting a magnetic disk cartridge into a cartridge holder, the tip of the magnetic disk cartridge comes into contact with another inner part of the cartridge holder before hitting the inner part of the cartridge holder. There is. When the magnetic disk cartridge is subsequently inserted, the cartridge holder moves in the horizontal direction while the magnetic disk cartridge is inserted halfway, and becomes in a state where it can be lowered. If this happens, not only will recording and reproduction become impossible, so-called malfunctions, but also the magnetic disk cartridge will hit the cartridge insertion slot of the device, causing undue force to be applied.

SUMMARY OF THE INVENTION An object of the present invention is to provide a recording and reproducing apparatus which eliminates the drawbacks of the prior art described above and prevents a cartridge from being loaded until the cartridge is not completely housed in a cartridge holder.

In order to achieve this object, the present invention has a locking means for locking the cartridge holder in a state before loading, and is configured to release the locking means by inserting the cartridge to a predetermined position in the cartridge holder. It is characterized by becoming.

An embodiment of the present invention will be described below with reference to the drawings.

The magnetic disk 1 is housed in a cartridge 2. A hub 4 is exposed through a through hole 3 provided in the center of the cartridge 2, and a head insertion opening 5 of the cartridge 2 is inserted into a shutter 6 provided below. and closed when not in use. Grooves 7 are formed on both sides of the cartridge 2, and within the grooves 7, an operating section 8 for slidably opening and closing the shutter 6 is provided.

A recording/reproducing apparatus using this cartridge 2 is provided with a cartridge insertion opening 9 and an eject button 10 in the front frame.
A cartridge holder 14 is provided with a roller 13 on the side that is guided by the cartridge holder 14. This cartridge holder 14 includes the frame 11 and the cartridge holder 14.
The tension spring 15 provided between the cartridges is always biased downward in the direction of the front frame.
It is located in the horizontal part 12a of the shaped groove 12. Further, at the front upper part of the cartridge holder 14, a receiving part 18 for a pad 17 for pressing the hub 4 of the magnetic disk 1 against the turntable 16 is provided. Further, the cartridge holder 14 is located on the rear upper surface of the cartridge holder 14, facing the magnetic head 19.
When located in the horizontal part 12a of the shaped groove 12, there is a contact part with the arm 21 having the pad 20 located above, and furthermore, the rear end part is where the cartridge 2 is placed.
A bent portion 22 is formed which comes into contact with the tip of. A roller operating body 24 is connected to the eject button 10 and has a pin 24b on its side that is guided into a horizontal hole 23 formed on the side of the frame 11. The roller operating body 24 has a vertical portion 12b of the ¬-shaped groove 12.
An inclined portion 25 that can come into contact with the roller 13 is formed. Therefore, the roller 13 is aligned with the ?-shaped groove 12.
When the roller actuating body 2 is located in the horizontal part 12a of
4 is in a free state.

Furthermore, a locking means 26 is provided on the upper surface of the cartridge holder 14. This locking means 26 is
On the upper surface of the cartridge holder 14, there is a lever 27 whose central portion is rotatably supported by a pin 33, and a lever 27 located at one end of the lever 27 and located in a recess 28 formed at the rear end of the cartridge holder 14. a hanging shaft 29, and a claw portion 31 provided at the other end of the lever 27 and in contact with the upper surface of the notch 30 of the frame body 11.
It consists of a receiving part 27a of the lever 27 and a frame 11.
A spring 32 tensioned between the receiving portion 11a of the lever 27 connects both ends of the lever 27 to the recessed portion 28 and the notch 3.
It is constantly biased in the 0 direction.

Therefore, when the cartridge 2 is inserted through the cartridge insertion opening 9 and the tip of the cartridge 2 presses the hanging shaft 29 of the lever 27, the lever 27 resists the spring 32 and leaves the recess 28, as shown in FIG. It will rotate clockwise. Then, the engagement, that is, the lock, between the claw portion 31 of the lever 27 and the notch portion 30 of the frame 11 is released. At this time, since the cartridge holder 14 is in contact with the cartridge 2 and the bending portion 22, the roller 13 is
Since it reaches above the vertical part 12b of the shaped groove 12,
The roller 13 is guided by the vertical portion 12b by the elastic force of the tension spring 15 and descends downward to enter the loaded state. Then, with pad 17, hub 4 of magnetic disk 1
is pressed by the turntable 16, allowing the magnetic disk 1 to rotate. On the other hand, since the operating portion 8 of the cartridge 2 engages with a protrusion (not shown) provided near the cartridge insertion opening 9, and the shutter 6 is opened, the magnetic head 19 is opened from the magnetic head insertion opening 5 of the cartridge 2. and a pad 20 are inserted respectively, and the magnetic disk 1 is inserted by both.
is elastically held and becomes ready for recording and reproduction.

By the way, when the cartridge 2 is inserted, it may for some reason come into contact with another part of the cartridge holder 14 and get caught before it comes into contact with the bending part 22. In this case, since the tip of the cartridge 2 does not come into contact with the hanging shaft 29 of the lever 27, the engagement between the notch 30 of the frame 11 and the claw 31 of the lever 27 is not released. Therefore, the cartridge holder 14 is prevented from lowering, that is, the cartridge holder 14 is prevented from shifting to the loaded state.

In addition, the cartridge holder 1 in the loaded state
4 can be returned to the loaded state by pressing the eject button 10. That is, when the eject button 10 is pressed inward, the inclined part 25 of the roller actuating body 24 presses the roller 13 located below the vertical part 12b of the ?-shaped groove 12, and the roller 1
3 rises while being held between the inclined part 25 and the vertical part 12b of the ?-shaped groove 12, and when it reaches the horizontal part 12a, the contact relationship between the inclined part 25 and the roller 13 is lost, so that the cartridge holder 14 Under the action of the tension spring 15, the roller 13 moves to the tip of the horizontal portion 12a. The cartridge holder 1 fixes the roller 13 according to the operation of the roller 13.
4 moves upward and toward the cartridge insertion slot 9,
Return to the state before loading.

As explained above, according to the present invention, a locking means is provided for locking the cartridge holder in the state before loading, and the locking means is released by inserting the cartridge to a predetermined position in the cartridge holder. Therefore, it is possible to provide a recording and reproducing device that can be used properly at all times without being able to enter the loading state unless the cartridge is inserted to a predetermined position in the cartridge holder. .

[Brief explanation of drawings]

Fig. 1 is a perspective view showing an outline of an embodiment of the present invention, Fig. 2 is a side view showing the main parts of the embodiment when not in operation, and Fig. 3 is a main part of the embodiment when it is in operation. FIG. 4 is a top view showing the locking means of the same embodiment. 2... Cartridge, 14... Cartridge holder, 26... Locking means.

Claims (1)

[Scope of utility model registration request] A recording and reproducing apparatus characterized in that a locking means for locking a cartridge holder in a pre-loading state is provided, and the locking means is unlocked by inserting a cartridge to a predetermined position in the cartridge holder. .