JPH0814978B2 - Magnetic disk unit - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a magnetic disk device, and more particularly to a magnetic disk device having a front panel attached to a chassis.

[0002]

2. Description of the Related Art For example, in a magnetic disk device in which a disk case accommodating a 3.5-inch flexible magnetic disk is inserted, a device in which a front panel is attached to the front end of a chassis and the front end of the chassis is inserted into the disk. There is a device that is attached so as to abut on an electronic device housing having a mouth and does not require a front panel.

As described above, in the magnetic disk device having the structure in which the front panel is not required, the magnetic disk device can be mounted with or without the front panel, as shown in FIG. That is, in FIG. 4, 1 is a chassis, 2 is a lid, and 3 is a front panel. The lid 2 has shafts 2a at both ends,
2b is rotatably provided inside the left and right side walls 1a, 1b of the chassis 1 so as to be rotatable. Engagement grooves 1c and 1d are formed on the outer sides of the left and right side walls 1a and 1b of the chassis 1 so as to extend in the up-down direction. The engagement grooves 1c and 1d project from both sides of the front panel 3. The front panel 3 is attached so that the fitting claws 3a and 3b fit together. Therefore,
The front panel 3 is regulated in the front-rear direction (X direction) and the left-right direction (Y direction) by the engaging claws 3a and 3b.

A disc insertion opening 3c extending in the left-right direction is provided on the front surface of the front panel 3, and the lid body 2 faces the front panel 3 so as to close the inner disc insertion opening 3c. As described above, in the magnetic disk device shown in FIG. 4, when the chassis 1 is attached to the electronic equipment housing provided with the disk insertion opening (not shown), the front panel 3 becomes unnecessary and the disk of the electronic equipment housing is directly attached. The lid 2 is attached so as to close the insertion port. However, when the electronic device housing is provided with the mounting hole for the front panel 3, the front panel 3 is mounted on the chassis 1 for use.

[0005]

However, in the magnetic disk device, researches for making the device thinner have been advanced, and therefore, the vertical dimension of the front panel 3 and the lid 2 is small. However, since the front panel 3 and the lid 2 are made of synthetic resin, warpage or the like is likely to occur as the device becomes thinner, and the relative positions of the lid 2 and the front panel 3 may shift.

In particular, since the mounting positions in the X and Y directions of the front panel 3 are conventionally restricted by the engaging claws 3a and 3b provided on both sides, the central portion of the front panel 3 is vertically (Z).
It was easy to slip in the direction).

As shown in FIG. 5, the height dimension H of the front panel 3 is reduced by thinning the magnetic disk device, and the difference h between the insertion position of the disk case 4 and the upper end position of the front panel 3 is also reduced. Therefore, when the relative position between the front panel 3 and the lid 2 is displaced, the disc case 4 may come into contact with the lid 2 near the shafts 2a and 2b when the disc insertion opening 3c becomes high, for example. become.

In this case, the lid 2 is rotated inward as the disc case 4 is inserted, but the lid 2 smoothly rotates as the contact height position of the disc case 4 approaches the shafts 2a and 2b. There is a problem that it becomes difficult to move.

Therefore, an object of the present invention is to provide a magnetic disk device which solves the above problems.

[0010]

SUMMARY OF THE INVENTION According to the present invention, a rectangular front panel having an insertion opening into which a disk case is inserted and having engaging claws on both sides, and an engaging claw of the front panel are engaged. A magnetic disk device comprising: a chassis having engaging grooves on both sides thereof; and a lid provided at an end portion of the chassis or a fixing member fixed to the chassis so as to close the insertion opening from the inside. A restricting portion for restricting a mounting position of the front panel in the short side direction is provided at a front end portion of the chassis or the fixing member, and a fitting portion for fitting the restricting portion is provided at a rear surface of the front panel.

[0011]

[Advantages] The mounting position in the short side direction of the front panel is regulated by fitting the regulating portion provided at the front end of the chassis or the fixing member fixed to the chassis with the fitting portion provided at the rear surface of the front panel. Then, the relative position between the lid provided on the chassis and the front panel is positioned.

[0012]

1 and 2 show an embodiment of a magnetic disk device according to the present invention. In both figures, the same parts as those in FIG. 4 described above are designated by the same reference numerals and the description thereof will be omitted.

1 and 2, a top plate 5 is fixed to the upper portions of the left and right side walls 1a and 1b of the chassis 1 by tightening screws 6. A disc mounting device (not shown) is interposed between the top plate 5 and the chassis 1.

The top plate 5 is made of sheet metal and is formed so as to cover the entire upper portion of the chassis 1. Further, on the front end portion 5a of the top plate 5, a pair of protrusions (regulation portions) 5b, 5c and a recess 5d for regulating the mounting position of the front panel 3 in the short side direction (Z direction).
.About.5f are provided. The pair of protrusions 5b and 5c
Is bent in the shape of a crank, and its front end is the front panel 3
It projects to a position facing the upper rear part of the rear surface. Also, the top plate 5
Has support portions 5g and 5h bent downward on both sides, and shafts 2a and 2b of the lid body 2 are rotatably supported by the support portions 5d and 5e.

During the opening / closing operation, the lid 2 has a pair of fitting portions 3 having fitting holes 3e and 3f on the rear surface 3d of the front panel 3.
A pair of recesses 2c and 2d are provided at the upper end of the lid body 2 so as not to come into contact with g and 3h.

Further, the rear surface 3d of the front panel 3 is provided with a pair of fitting portions 3g, 3h having mounting holes 3e, 3f. The holes 3e and 3f are located above the disc insertion slot 3 and are provided at positions of about 1/4 from both ends of the front panel 3 in the long side direction (Y direction).

Further, the mounting holes 3e and 3f have opening portions formed in a rectangular shape corresponding to the front shape of the projections 5b and 5c of the top plate 5, and the vertical and horizontal dimensions thereof are projections. 5
It is slightly larger than the thickness and width of b and 5c. Therefore, the projections 5b and 5c are attached to the front panel 3 by Z.
Not only the direction but also the mounting position in the Y direction can be regulated.

The mounting holes 3e and 3f are formed so that the depth dimension thereof is the same as that of the protrusions 5b and 5c or slightly longer.

When the front panel 3 having the above structure is attached to the chassis 1, the pair of mounting holes 3e and 3f are applied to the pair of protrusions 5b and 5c protruding from the front end portion 5a of the top plate 5. Then, the engaging claws 3 protruding from both sides of the front panel 3
The front panel 3 is pressed toward the chassis 1 so that the a and 3b engage with the engagement grooves 1c and 1d of the chassis 1. As a result, as shown in FIG. 3, the pair of protrusions 5b and 5c are attached to the mounting hole 3
The engaging claws 3a and 3b are engaged with the engaging grooves 1c and 1d while being fitted to the e and 3f.

The mounting positions of the front panel 3 in the front-rear direction (X direction) and the long side direction (Y direction) are restricted by the engaging claws 3a and 3b. Then, the front panel 3 is fitted in the projections 5b and 5c and the mounting holes 3e and 3f, and thus the short side direction (Z direction).
And the mounting position in the long side direction (Y direction) is restricted.

That is, even if the front panel 3 is warped, the pair of protrusions 5b and 5c can correct the warp of the front panel 3 by fitting with the mounting holes 3e and 3f. Therefore, the disc insertion opening 3c of the front panel 3 is positioned so as to be in the correct mounting position with respect to the lid body 2 provided on the chassis 1 side.

Therefore, the relative position between the disc insertion opening 3c and the lid 2 is prevented, and the lid 2 can be smoothly opened when the disc case is inserted.

Although the top plate 5 is provided with the pair of protrusions 5h and 5c in the above embodiment, the present invention is not limited to this, and the protrusions may be provided on the chassis 1 side. Further, it goes without saying that a protrusion may be provided on the rear side of the front panel and a hole into which the protrusion fits may be provided at the front end on the chassis side.

Further, although the lid 2 is supported by the top plate 5 in the above embodiment, it is needless to say that the present invention can be applied to a configuration in which the lid 2 is supported by the chassis 1. . Further, the positions and the numbers of the protrusions 5b and 5c and the mounting holes 3e and 3f are not limited to those in the above embodiment, and one or two or more may be disposed.

[0025]

As described above, in the magnetic disk device according to the present invention, the restricting portion provided at the front end of the chassis or the fixing member fixed to the chassis is fitted into the fitting portion on the rear surface of the front panel. The mounting position of the front panel in the short side direction is regulated, and the relative position between the lid provided on the chassis side and the front panel can be positioned at a correct position.
Therefore, the relative position between the insertion opening and the lid can be eliminated, the opening operation of the lid by the insertion of the disc case becomes smooth, and the disc case can be inserted with a light force. .

[Brief description of drawings]

FIG. 1 is a perspective view of an embodiment of a magnetic disk drive according to the present invention.

FIG. 2 is a vertical sectional view showing a main part of the present invention.

FIG. 3 is a vertical cross-sectional view showing a state in which a protrusion of a top plate is fitted in a mounting hole of a front panel.

FIG. 4 is a perspective view for explaining a conventional configuration.

FIG. 5 is a side sectional view for explaining an opening / closing operation of the lid body.

[Explanation of symbols]

 1 Chassis 1a, 1b Side wall 2 Lids 2a, 2b Shaft 3 Front panel 3a, 3b Engaging claw 3c Disc insertion port 3e, 3f Mounting hole 4 Disc case 5 Top plate 5b, 5c Projection

Claims (1)

[Claims] 1. A rectangular front panel having an insertion opening for inserting a disk case on the front side and engaging claws on both sides, and engaging grooves on both sides for engaging with the engaging claws of the front panel. A magnetic disk device comprising: a chassis having: a lid member provided at an end portion of the chassis or a fixing member fixed to the chassis so as to close the insertion opening from the inside, and a front end of the chassis or the fixing member. A magnetic disk device, characterized in that a restricting part for restricting a mounting position of the front panel in the short side direction is provided on a part, and a fitting part for fitting the restricting part is provided on a rear surface of the front panel.