JPH054342U - Floppy disk drive - Google Patents

Abstract

(57) [Summary] [Object] In a floppy disk drive device for a floppy disk having a shutter, when the magnetic head is being ejected and the magnetic head is being lifted, the shutter is closed by the magnetic head. Do not damage it. [Structure] A magnetic head 9 that comes in contact with and separates from a floppy disk 2 having a shutter 2c that slides
A floppy disk drive device 1 having a, comprising stoppers 7, 7 having engaging portions 7a, 7a for engaging two recesses 2a, 2a on the back surface on both sides of the tip of the floppy disk 2, A slider 4 for moving the head 9a away from the floppy disk 2 has ends 4c, 4c at its ends 7c, 7c of the stoppers 7, 7.
Is pressed to release the engagement between the concave portions 2a, 2a and the engaging portions 7a, 7a, and the floppy disk 2 is ejected.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a floppy disk drive device, and more particularly to a floppy disk drive device in which a shutter provided on a floppy disk does not damage a magnetic head during ejection.

[0002]

[Prior Art]

 A conventional floppy disk drive device using a 3.5-inch floppy disk drives a magnetic head for reading data when the floppy disk is loaded to operate the magnetic disk through a window provided in the case of the floppy disk. It is pressed against the recording area, and at the same time, it is locked to prevent it from falling off. When the floppy disk is taken out, the eject button is pressed, whereby the lock is released and the floppy disk is ejected.

[0003]

[Problems to be solved by the device]

 In the above conventional type, when the eject button is pressed with the portion into which the floppy disk is inserted facing downward, the floppy disk may drop under its own weight when the lock is not completely released. At this time, the magnetic head is not completely separated from the magnetic recording portion. Therefore, the closing operation of the shutter of the floppy disk may damage the magnetic head.

As described above, in the floppy disk drive device, even when the eject button or the like is operated with the insertion portion of the floppy disk facing downward, the magnetic head is ejected after being sufficiently separated from the floppy disk. Therefore, the present invention aims to solve this problem because a technical problem to be solved arises.

[0005]

This invention has been proposed in order to achieve the above-mentioned object, and is a floppy disk equipped with a magnetic head that comes into contact with a floppy disk equipped with a sliding shutter in a direction perpendicular to the disk. A disk drive device is provided with a stopper having an engaging portion that engages with at least one of the two concave portions formed on the floppy disk, and a slider for separating the magnetic head from the floppy disk. A floppy disk drive device is characterized in that the lid pushes the end portion of the stopper to release the engagement with the recess.

[0006]

[Action]

 In this invention, a stopper made of, for example, an elastic body is provided in a fixed position in a floppy disk drive device, and the engaging portion of the stopper is elastically provided in recesses formed on the back surfaces on both sides of the tip of the floppy disk to be inserted. To be engaged with. Thus, for example, a slide lever, which is operated by an eject operation, separates the magnetic head from the floppy disk, and then the engagement is released to eject the magnetic head. Therefore, there is no fear that the floppy disk may damage the magnetic head at the time of ejecting, and the structure is simple, and no major remodeling is required, which is extremely easy to implement.

[0007]

【Example】

 1 to 2 and 4 show an embodiment of the present invention, and FIG. 3 shows a rear view of a floppy disk. FIG. 1 is a plan view of a 3.5-inch floppy disk drive device 1, showing a state in which a floppy disk 2 is loaded. FIG. 2 is a right side view of FIG. There is.

In FIG. 1, the slider 4 is urged against the chassis 3 in the direction of arrow A by slider springs 5 and 5 which are tension coil springs. With the floppy disk 2 loaded, the lock lever 6 is pushed up against the bias. The chassis 3 has walls 3a formed on three sides around the chassis 3, and the stoppers 7, 7 made of an elastic body are fixed to the inside of the walls 3a at their bases. The engaging portions 7a 1, 7a 2 of the stoppers 7, 7 are formed in an arc shape and engage with the concave portions 2a, 2a of the floppy disk 2 1 shown in detail in FIG.

In FIG. 1, when the slider 4 has an eject button 4a fixed and the eject button 4a is pressed in the direction of arrow B, the slider 4 causes the slider springs 5 and 5 to be tensioned and slides in the direction of arrow B. .. In the figure, the disk holder 8 has slide keys 8a, 8a slidably fitted in the key grooves 3c, 3c of the wall 3a, and the horizontal operation of the disk holder 8 is restricted in FIG.

In FIG. 2, the slider 4 has cam grooves 4b, 4b formed on one side, and a similar cam groove is formed on the other side which is not shown in FIG. The disk holder 8 is provided with pins 8b, 8b which slide into the cam grooves 4b, 4b. When the slider 4 is slid to the right in the figure against the slider springs 5, 5, The disk holder 8 moves up by the pins 8b and 8b guided by the cam grooves 4b and 4b. Since the disk holder 8 holds the floppy disk 2 by the left and right holding portions 8c, 8c formed by bending in a U-shape in FIG. 1, the floppy disk 2 also rises together with the disk holder 8.

FIG. 3 is a bottom view of the floppy disk 2. The floppy disk 2 is provided with recesses 2a, 2a at both edges in the vicinity of the front end thereof, and holes 2b are provided in the vicinity of the recesses 2a, 2a. , 2b are opened. A normally closed shutter 2c is provided in a window 2d provided at the center of the tip of the floppy disk 2 by spring bias.

Further, in FIG. 1, pins 3d, 3d for fitting into holes 2b, 2b opened in the floppy disk 2 are planted on both sides of a bottom portion 3b of the chassis 3, The pins 3d, 3d are configured to fit into the holes 2b, 2b of the floppy disk 2 when the floppy disk 2 is loaded in the floppy disk drive.

When the disk holder 8 is moved upward in FIG. 1, the carriage 9 is rotated against the bias of the spring, and the head 9 a is separated from the magnetic recording portion 2 e of the floppy disk 2. When the floppy disk 2 is slightly separated from the bottom portion 3b by the disk holder 8 but is not completely separated from the bottom portion 3b, the hole 2b is partially inserted into the pin 3d as shown in FIG. It has become.

As shown in FIG. 1, the shutter arm 10 is biased in the clockwise direction by the shutter spring 11, and the bent portion 10 a at the tip is engaged with the shutter 2 c of the floppy disk 2 for reading and writing data. The window 2d is opened, and at this time, the shutter spring 11 biases the floppy disk 2 in the eject direction. Therefore, the hole 2b is always pressed laterally against the pin 3d.

FIG. 5 and FIG. 6 are partially cutaway transverse sectional views showing the main part of the present invention. In FIG. 5, the stopper 7 has an engaging portion 7a formed in an arc shape in the floppy disk 2. The base portion 7b is fixed to the wall 3a of the chassis 3, and the end portion 7c opposite to the base portion 7b faces the tip portion 4c of the slider 4. The floppy disk drive 1 having the stopper 7 arranged as described above performs the eject operation by pressing the eject button 4a in the direction of arrow B in FIG. The disk holder 8 is raised by the eject operation, and the carriage 9 is rotated to separate the magnetic head 9a from the magnetic recording body 2e. At this time, the holes 2b, 2b are completely removed from the pins 3d, 3d.

Further, in FIG. 6, the tip portion 4c of the slider 4 pushes the end portion 7c of the stopper 7 to disengage the engaging portion 7a from the concave portion 2a, and the floppy disk 2 is opened. In FIG. 1, the lock lever 6 rotates following the ejection of the floppy disk 2, and the engaging portion 6a engages the bent portion 4b of the slider 4 to resist the slider springs 5 and 5. Lock the slider 4.

As shown in FIG. 7, the shape of the engaging portion 17a of the stopper 17 is easily engaged with the recess 2a when the floppy disk 2 is inserted, and the engagement is difficult to disengage in the eject direction. You may do it. As a result, when the tip portion 4c pushes the end portion 17c as shown in FIG. 8, the engagement can be released with a small torque. Further, as shown in FIG. 9, the end portion 27a of the stopper 27 fixed to the bottom portion 3b of the chassis 3 by the fixing portion 20b engages with the concave portion 2a, and the end portions 4c on both sides of the slider 4 are connected to each other. The end portion 27a may be pushed to release the engagement.

Further, as shown in FIG. 11, the fixed portion 37 b of the stopper 37 is fixed to the disk holder 4, and the engaging portion 37 a of the stopper 37 is engaged with the concave portion 2 a of the floppy disk 2. The floppy disk 2 may be locked by forcing, and the end 37c of the stopper 37 may be pushed by the tip 4c of the side of the slider 4 to release the lock.

In the above-described embodiment of the present invention, the stopper is shown to be engaged with each of the two recessed portions on the left and right of the floppy disk 2, but the floppy disk is stably locked. Therefore, it suffices to provide a stopper that can be engaged with one of the recesses at one location. Further, the means for releasing the lock of the floppy disk by the stopper is not limited to one in which the slider directly pushes the stopper, and the slider may be operated via another intermediary member. Further, the stopper 7 is not limited to one made of a flexible material, but the base portion of the stopper made of a rigid body is pivotally attached to the inside of the chassis so as to be rotatable, and the floppy disk is biased by a spring. The free end may be releasably engaged with the recess of the disk and the engagement may be released by actuation of a member which is directly or indirectly associated with carriage actuation.

It should be noted that the present invention can be variously modified without departing from the spirit of the present invention, and it goes without saying that the present invention extends to the modified version.

[0021]

[Effect of the device]

 As described in detail in the above-mentioned embodiment, this invention provides a recess provided on both sides of the back surface of a floppy disk with stoppers for engaging the recess in the floppy disk drive device and a magnetic head from the floppy disk. Since the slider that disengages disengages the stopper and ejects the floppy disk, the magnetic head is ejected from the floppy disk regardless of the attitude of the floppy disk drive, and the floppy disk is ejected. There is no risk of the disk damaging the magnetic head.

[Brief description of drawings]

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

FIG. 2 is a right side view showing a part of FIG. 1 cut away.

FIG. 3 is a bottom view of a floppy disk.

FIG. 4 is a cross-sectional view of a main part of a CC section of FIG.

5 is a partially cutaway cross-sectional view showing an engagement state between the stopper 7 and the recessed portion of FIG. 1. FIG.

6 is a partially cutaway transverse sectional view showing a state at the time of ejecting in FIG.

FIG. 7 is a partially cutaway cross-sectional view showing the main parts of another embodiment of the present invention.

8 is a partially cutaway cross-sectional view showing a state at the time of ejecting in FIG.

FIG. 9 is a partially cutaway cross-sectional view showing a main part of still another embodiment of the present invention.

FIG. 10 is a partially cutaway cross-sectional view showing a state at the time of ejecting in FIG.

FIG. 11 is a partially cutaway cross-sectional view showing a main part of still another embodiment of the present invention.

[Explanation of symbols]

 1 Floppy Disk Drive Device 2 Floppy Disks 2a, 2a Recesses 2b, 2b Hole 2c Shutter 4 Slider 7,7 Stopper 7a, 7a End

Claims (1)

Claims for utility model registration: 1. A floppy disk drive device equipped with a magnetic head that is in contact with a floppy disk equipped with a shutter for sliding operation in a direction perpendicular to the floppy disk. A slider having an engaging portion that engages with at least one of the concave portions, and a slider for moving the magnetic head away from the floppy disk is pushed into the concave portion by pushing the end portion of the stopper. A floppy disk drive device characterized by releasing the engagement of the.