JP2937708B2 - Carriage assembly - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an upper magnetic head and a lower magnetic head which are used in a floppy disk drive and record or reproduce information on a floppy disk containing a flexible recording medium in a case. The present invention relates to a carriage assembly for holding a head.

[0002]

2. Description of the Related Art Conventionally, an upper magnetic head and a lower magnetic head which are used in a floppy disk device and record or reproduce information on a flexible floppy disk (recording medium) housed in a case are held. Has a structure in which an upper magnetic head and a lower magnetic head are moved in the radial direction of a recording medium, stopped at a specified position, and contacted with a rotating recording medium to slide.

FIG. 2 is a perspective view showing an example of a conventional carriage assembly as described above.

In FIG. 2, a lower magnetic head 3 is fixedly held by a plate 10 provided at the tip of a carriage 4, and an upper magnetic head provided at a position facing the lower magnetic head 2. 1 is held at the tip of the holder 12. At the rear end of the holder 12, a leaf spring 1 is provided.
7 is attached, and the rear end of the leaf spring 17 is fixed to the upper end surface of the connecting portion 15 by a screw 11. The lower end of the connecting portion 15 is fixed to the rear end of the carriage 4.

A recording medium is inserted between the upper magnetic head 1 and the lower magnetic head 3, and information is recorded or reproduced by the upper magnetic head 1 and the lower magnetic head 3. Therefore, a load spring 13 is provided on the upper surface of the holder 12, and a load is applied to the upper magnetic head 1 toward the lower magnetic head 3 by the load spring 13. As a result, the upper magnetic head 1 and the lower magnetic head 3 have a structure in which the upper magnetic head 1 and the lower magnetic head 3 slide in contact with the recording medium at a predetermined pressure, so that stable recording and reproduction of information can be performed.

[0006]

The conventional carriage assembly as described above is provided with a load spring for performing stable recording or reproduction of information on a recording medium by the upper magnetic head and the lower magnetic head. The upper and lower magnetic heads are brought into contact with the recording medium at a predetermined pressure by the load springs. The load springs are separate members from the plate springs. In addition, there is a problem that the cost is increased in terms of the number of manufacturing steps.

[0007]

This onset bright [Means for solving problem] through the access window against the floppy disk is a flexible recording medium housed in a case is provided at the same position of both surfaces of the case information An upper magnetic head and a lower magnetic head for recording or reproducing data, a holder for holding the upper magnetic head at a distal end, a carriage for holding the lower magnetic head at a distal end, and a lower end located behind the carriage. A coupling portion attached to an end portion and fixed to both sides of a distal end portion of the leaf spring at both side portions of the upper end portion, and a distal end portion attached to a rear end portion of the holder and above the coupling portion at a central end portion. carriage assembly odor Ru and a said plate spring having a pressing portion which contacts the central portion of the end face
Then , a convex portion is provided in the center of the upper end surface of the coupling portion, and the end of the pressing portion of the leaf spring is brought into contact with the upper surface of the convex portion.

[0008]

Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a perspective view showing an embodiment of the present invention.

In FIG. 1, an upper magnetic head 1 and a lower magnetic head 3 are provided at positions facing each other, and the above-mentioned magnetic head 1 and the lower magnetic head 3 are placed on a flexible floppy disk (recording medium) housed in a case. Information is recorded or reproduced through access windows provided at corresponding positions on both sides of the case. The lower magnetic head 3 is fixed and held on a plate 10 provided at the tip of a carriage 4, and the upper magnetic head 1 is held at the tip of a holder 2. The front end of the leaf spring 7 is attached to the rear end of the holder 2, and both sides of the rear end of the leaf spring 7 are fixed to both sides of the upper end surface of the coupling portion 5 by screws 11. ing. The lower end of the connecting portion 5 is fixed to the rear end of the carriage 4.

A convex portion 6 is provided at the center of the upper end surface of the connecting portion 5, and the upper end of the convex portion 6 comes into contact with the end of a pressing portion 8 provided at the central portion of a plate spring 7. doing. Therefore, since the end of the pressurizing portion 8 is deformed in the direction of arrow A by the convex portion 6 of the connecting portion 5, the upper magnetic head 1 is pressed against the recording medium via the holder 2, and the upper magnetic head 1 and the lower The side magnetic head 3 is brought into predetermined contact with the recording medium. That is, the pressing portion 8 of the plate spring 7 has the same function as the load spring 13 of FIG. Therefore, in this embodiment, stable recording and reproduction of information can be performed without a load spring.

[0012]

As described above, in the carriage assembly according to the present invention, the both ends of the rear end of the plate spring are screwed to the upper end surface of the connecting portion, and the pressing portion is provided at the center of the plate spring. And the end thereof is brought into contact with the convex portion provided at the center of the upper end surface of the coupling portion, so that a predetermined load can be applied to the upper magnetic head by the pressing portion of the leaf spring. Therefore, even if there is no load spring, the upper magnetic head and the lower magnetic head can be brought into predetermined contact with the recording medium, so that stable recording and reproduction of information can be performed. There is.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is a perspective view showing an example of a conventional carriage assembly.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Upper magnetic head 2.12 Holder 3 Lower magnetic head 4 Carriage 5.15 Coupling part 6. Convex part 7.17 Plate spring 8 Pressurizing part 10 Plate 11 Screw 13 Load spring

Claims (1)

(57) [Claims] 1. An upper magnetic head for recording or reproducing information on a floppy disk, which is a flexible recording medium, housed in a case through access windows provided at the same position on both surfaces of the case. And a lower magnetic head, a holder for holding the upper magnetic head at the tip, a carriage for holding the lower magnetic head at the tip, and a lower end attached to the rear end of the carriage and opposite sides of the upper end. A connecting portion for screwing both sides of a distal end of the leaf spring at a portion, and a pressurizing portion having a leading end attached to a rear end of the holder and contacting a central portion of an upper end surface of the coupling portion at a central end. And a plate-like spring having a portion, wherein a convex portion is provided at a central portion of an upper end surface of the coupling portion, and an end of a pressing portion of the plate-like spring is brought into contact with an upper surface of the convex portion. The carriage assembly according to claim.