JPS6218670A - Magnetic recorder - Google Patents

Abstract

PURPOSE:To detect modes with a simple structure and to reduce power consumption by arranging one of plural actuators in a position other than mode detection holes and arranging the other actuators in positions corresponding to a required number of mode detection holes. CONSTITUTION:When a disc cartridge 11 having a through mode detection hole 11a falls, the second plunger 1a is pressed by a disc cartridge to release the conduction relation between a common terminal 3 and the second terminal 4a, but the first plunger 1 is inserted to the mode detection hole 11a and is not operated to keep the conduction relation between the common terminal 3 and the first terminal 4. When the disc cartridge 1 with the mode detection hole 11a closed by a moving piece 12 falls, the first plunger 1 and the second plunger 1a are pressed together to release conduction relations between the common terminal 3 and the first terminal 4 and between the common terminal 3 and the second terminal 4a. Thus, the mode set to the disc cartridge 11 is detected.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a disk cartridge detection structure for a magnetic recording device in which a disk cartridge is mounted and removed by raising and lowering it.

[Summary of the invention]

The present invention provides a magnetic recording device which is controlled by detecting a mode by elevating and lowering a disk cartridge having a required number of mode detection holes and mode detection hole opening/closing means, and which is approximately perpendicular to the vertical direction of the disk cartridge. a common terminal, a plurality of dedicated terminals, and a plurality of actuators that are independently movable in a direction crossing the two rod terminals and are actuated by raising and lowering the disk cartridge; A multiple switch is constituted by a plurality of independent contact pieces having a biasing means and actuated integrally with the actuator and abutting between the two types of terminals to bring about continuity, and the plurality of One of the actuators is arranged in a position other than the required number of mode detection holes, and the other actuators are arranged in a position corresponding to the mode detection hole, thereby enabling mode detection with a simple structure. Not only that, but it also consumes less power.

Furthermore, by mounting the multiple switches on a substrate, the process for connecting a plurality of terminals is simplified.

[Conventional technology]

The conventional disk cartridge detection structure of a magnetic recording device in which the disk cartridge is attached and detached by raising and lowering the disk cartridge is as follows.
The structure was as shown in FIGS. 8, 9, and 10.

FIGS. 7 and 8 are diagrams for explaining a conventional disk cartridge detection structure, and are a first conventional structural diagram and a conventional second structural diagram, respectively.

Figure 9 and Figure 10 are diagrams for explaining other conventional disk cartridge detection structures, and are a conventional 1' structural diagram and a conventional 2' structural diagram, respectively.

In FIGS. 7 and 8, the 11-disk cartridge has all mode detection holes 11a, and has 12 moving pieces as means for opening and closing the mode detection holes. 13 light emitting elements and 14 light receiving elements are arranged on both sides of the 11 disk cartridge. When the 11a mode detection hole is penetrated, the 14 light receiving elements receive and detect light as shown in FIG.
If the mode detection hole 2 is disconnected by the moving piece, 1 as shown in Figure 8.
The four receiving elements had a structure that made it impossible to detect light.

On the other hand, in Figures 9 and 10, the 11' disk cartridge, the mode detection hole 11a, and the moving piece 12 are the same as in Figures 7 and 8. be.

A slider 22 guided by a pole 23 erected on a frame 21 is slidable and is biased to the position shown in FIG. 9 by a spring 24. Then, 26 light emitting elements and 25 light receiving elements are arranged sandwiching one piece of the 22 slider.
Even if the 11-disk cartridge that has passed through the 1a mode detection hole goes down in the ↓A impression direction, the 22 slider will not move to 11a.
Since it does not move to the mode detection hole very much, the 25 receiving element does not detect the light reception as shown in Figure 9, and the 11a mode detection hole does not detect the light reception.
The 11 disk cartridge that is disconnected with the 2nd moving piece is ↓A
When descending in the direction of the applied force, the slider 22 was pushed as shown in FIG. 10, and the receiving element 25 was structured to receive and detect light.

Although not shown in the drawings, the detection of the 11-disc force-tring itself, such as determining the presence or absence, was performed using the above-described detection structure to detect an area of the 11-disc cartridge in which there is no 11a mode detection hole.

[Problems and Objectives to be Solved by the Invention] However, in the above-mentioned prior art, since the light emitting element A is always lit, power consumption is large.

B. After converting the original input of the light receiving element to the original form, a control circuit is required to amplify the electrical signal, which is expensive.

9 and 10 require a mechanical mechanism and have a complicated structure.

Considering the above-mentioned problems, it is easy to detect by a switch with a mechanical contact metal, but the conventional snub-action type and leaf type switches (as shown in the figure) (explanation omitted) could not be put to practical use because of the high operating pressure and large size, which made installation space difficult.

Therefore, the present invention aims to solve this problem, and its purpose is to configure a mode detection detector installed in the disk cartridge using a small mechanical switch that operates at light operating pressure. The object of the present invention is to provide a magnetic recording device that has a simple structure, low power consumption, and is inexpensive.

[Means for solving problems]

The magnetic recording device of the present invention is a magnetic recording device in which a disk cartridge having a required number of mode detection holes and mode detection hole opening/closing means is moved up and down to be attached and detached, and the mode is detected and controlled. A common terminal and a plurality of dedicated terminals are arranged in parallel in a non-conducting relationship substantially perpendicular to the lifting direction and on the same plane, and the terminals are movable independently in a direction intersecting with the two types of terminals, and are actuated by lifting and lowering the disk cartridge. It has a plurality of actuators and a biased means and operates integrally with the actuators, and the two
Bringing continuity between the terminals of the plant? J15' constitutes a multiple switch consisting of independent contact pieces, and one of the plurality of actuators is placed at a position other than the mode detection hole, and the other actuator is placed at a position corresponding to the mode detection type on the desired side. It is characterized by having a structure that detects the

Furthermore, the present invention is characterized in that the multiple switches are mounted on a substrate.

[For production]

According to the above configuration of the present invention, the actuator is operated by raising and lowering the disc cartridge, and the actuator is actuated by raising and lowering the disc cartridge.
The biasing means for the contact piece may have a biasing force sufficient to return the actuator together with the contact piece, and is actuated by auxiliary operating pressure to close the disc cartridge. It detects the mode and converts the mode.

〔Example〕

1 and 2 are diagrams showing one embodiment of the present invention, and FIGS. 3, 4, 5, and 6 are diagrams explaining the main parts thereof, each of which has a first operating structure. , a second operation structure diagram, a switch cross-sectional structure diagram, and a switch top view.

Switch perspective view. It is a contact structure diagram. Note that FIG. 3 shows an irregular cross-sectional view for convenience of explanation.

In FIGS. 1 and 21, the 11-disk cartridge having the 11a mode detection hole has all 12 movable pieces for fully opening and closing the 11a mode detection hole, and moves up and down in the direction marked in the figure. It is raised and lowered depending on the means (not shown).

3 common terminals, and 4 first terminals and 4a second terminals, which are dedicated to the entire dedicated circuit, are arranged in parallel to the disk cartridge in substantially the same plane direction, and are made of an insulating material such as, for example, plastic. 6 are installed in the main body, and their relationships are arranged as shown in FIG. 4, and there is no conductive relationship.

The 1 first plunger and the 1a second plunger disposed between each of the 4 first terminal and the 3 common terminal, and the 4a second terminal and the 3 common terminal are actuators that are freely movable while being guided by the 6 main body, The two first contact pieces and the second contact pieces 2a for bringing continuity between the respective terminals each have a receiver, and are integrally biased by eight springs like the second plunger 1a in FIG. 3, The contact piece and the terminal come into contact and form a conductive relationship, and as soon as the plunger is pushed in the direction of the ↓ mark, the contact piece and the terminal separate and the conductive relationship is broken.

7 Retainer has 8 spring holders and holders that serve as a cover.

5 The common terminal, 4 first terminal, and 4a second terminal, which are configured outside the 6 main body, have a shape similar to the 4 first terminal shown in the part not shown in the cross-sectional view in the left half of Figure 3. , are mounted and soldered to five boards, respectively.

Figure 143 is an irregular drawing for explaining the entire internal structure, and the general shape of the main parts in this embodiment is as shown in the perspective view of the fifth self-switch. The functions of the relationships between the terminals and contact pieces of each friend described above in Figures 1, 2, and 5 are as follows.
As shown in the sixth fixed contact structure diagram, it is normally in a bad ON state, but becomes OFF state when activated.

For the multiple switch of the above structure, 11
When the 11-disc cartridge with the a-mode detection hole penetrated falls to the position shown in Figure 1, the 1 ai2 plunger is pushed by the 11-disk cartridge and establishes a conductive relationship between the 3 common terminal and 4 a @ 2; Solve it, 1st 1st
The plunger does not operate due to the 11a mode detection hole, and the conductive relationship between the 3 common terminal and the 4 first terminal is maintained.

On the other hand, when the disk cartridge 11 whose mode detection hole 11a is closed by the moving piece 12 as shown in FIG. 2 descends to the position shown in FIG. 2, both the first plunger 1 and the second plunger 1a are pushed, This is to solve the conduction relationship between the common terminal and the 4th terminal, and between the 3rd common terminal and the 4a second terminal.

As described above, the present invention detects all modes set in the 11-disk cartridge.

In addition, in the embodiment of the present invention, 1 first plunger and 1
Although the second plunger is a slidable actuator, it is of course possible to configure it with a swingable arm (not shown), and the 8 springs are connected to the first plunger 1 and the second plunger 1a. A light pressure sufficient to energize the terminals will bring about continuity between the respective terminals.

Also, in this embodiment, the explanation was given as a double-type switch, but
This structure has multiple switches and is designed to detect multiple modes.

〔Effect of the invention〕

As described above, according to the present invention, it is possible to configure a multiple mechanical switch that is compact and operates with auxiliary operating pressure to detect the mode of a disk cartridge with a simple structure. Since the system circuit is switched by directly converting the electric current through the operation of the , there is no need for auxiliary control circuit functions such as signal amplification. The contact points of multiple mechanical switches are so-called 'H-GF (-LEVT).
It is only necessary to send a small tx current that is sufficient to detect the level of LL'', 'T,, OW-'LEVKT,,'', and all the light emitting elements are always lit like the conventional structure using light emitting elements and light receiving element consonants. This provides a magnetic recording device with very low power consumption.

The practical effects of the present invention are surprisingly large, since the multiple mechanical switch can be mounted on a board, the process for connecting several terminals is simple, and high-breakage production is easy.

[Brief explanation of the drawing]

FIGS. 1 and 2 are diagrams for explaining the present invention, and FIGS.
Figures 4, 5, and 6 are diagrams for explaining the main parts thereof, and are respectively a first operating structure diagram, a second operating structure diagram, a switch cross-sectional structure diagram, a switch top view, a switch perspective view, and a contact structure. It is a diagram. Figures 7 and 8 are diagrams explaining conventional examples, and Figures 9 and 1.
The zero causes are diagrams for explaining other conventional examples, and are respectively a conventional first structural diagram, a conventional second structural diagram, a conventional 1' structural diagram, and a conventional 2' structural diagram □□□. 1...First plunger 1a...Second plunger 2...First contact piece 2a...Second contact piece 3...Common terminal 4... ...First terminal 4a...Second terminal 5...Board 11...Disk cartridge or more Figure 2 Figure 3 Sui No ÷ Top surface 1 force 1 Yu ㆾ Z 7° lunge - Figure 5 Figure 6 Layout, 1st temperature (] Figure 8 ゛//a Takumi I) Ryobi Yokoyari 1) Bi~Akorugafuku disease area Figure 9
Figure 10

Claims (2)

[Claims] (1) A disk cartridge containing a magnetic medium and having a required number of mode detection holes and mode detection hole opening/closing means is moved up and down to be attached and detached. In a magnetic recording device that detects and controls a mode, a common terminal, a plurality of dedicated terminals, and a plurality of dedicated terminals are arranged in parallel in a non-conducting relationship substantially perpendicular to the vertical direction of the disk cartridge and in substantially the same plane, and the two types of terminals are provided. a plurality of actuators that are movable independently in a direction intersecting with the disk cartridge and actuated by raising and lowering the disk cartridge; and a biased means that acts integrally with the actuators;
A multiple switch is constituted by a plurality of independent contact pieces that come into contact between terminals of the species, and one of the plurality of actuators is located at a position other than the mode detection hole, and the other actuators are located at a position other than the mode detection hole. A magnetic recording device characterized in that the magnetic recording device is configured to detect modes by disposing them at positions corresponding to a required number of mode detection holes. (2) The magnetic recording device according to claim 1, wherein the multiple switch is mounted on a substrate.