JP2503556Y2 - Drive device for disk-shaped recording medium - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a drive device for a disk-shaped recording medium such as a floppy disk.

SUMMARY OF THE INVENTION The present invention provides a door at an insertion opening of a disk-shaped recording medium such as a floppy disk cartridge, and when the disk-shaped recording medium is inserted from the insertion opening, the tip of the disk-shaped recording medium is When the front surface of the door is pushed, the door pivots away in the insertion direction of the disk-shaped recording medium about a hinge shaft that pivotally supports the back side of one end of the door,
In a drive device for a disc-shaped recording medium, which is configured to allow the insertion of the disc-shaped recording medium by opening the insertion port, one end face of the door on the hinge shaft side has a tip end when the disc-shaped recording medium is inserted. The inclined surface that prevents the disc-shaped recording medium from being caught prevents the tip of the disc-shaped recording medium from being caught on one end surface of the door on the hinge axis side when the disc-shaped recording medium is inserted. Is designed to be inserted smoothly.

[Prior Art] As drive devices for disk-shaped recording media, the fifth to seventh
Front bezel 102 of drive unit 101 as shown
When the disc-shaped recording medium 104 is inserted from the insertion opening 103 provided in the door 105, the front surface 105a of the door 105 for opening and closing the insertion opening is pushed by the tip of the disc-shaped recording medium 104, so that the door 105 has one end (upper end). The rear door 105b has a wide door structure in which the insertion opening 103 is opened around the hinge shaft 106, which is pivotally supported on the back surface 105b side, so as to escape and rotate in the insertion direction of the disk-shaped recording medium. It is used.

The door 105 is an insertion slot 1 except when the disc-shaped recording medium is inserted.
When 03 is closed, dust and the like are prevented from entering the device through the insertion port 103, and the insertion device 103 is closed to make the drive device 101 look good.

The door 105 is generally made of plastic and has a plate thickness of a predetermined thickness t, and a hinge shaft 106 is integrally formed on the back side of one end of the door 105. The hinge shaft 106 is rotatably supported by a bearing portion 107 provided on the front bezel 102 or the like in a state of being closely attached to the inner side surface 102a.

The front surface 105a of the door 105 is brought into close contact with the inner side surface 102a of the front bezel 102 in order to enhance the sealing effect of the insertion opening 103 by the door 105, and the hinge shaft 106 is attached to the rear surface of the upper end portion of the door 105.
On the 105b side, the upper end of the door 105 and the front bezel 1
This is in consideration of space restrictions such as a gap between the 02 and the upper surface 102b.

[Problems to be solved by the invention] By the way, in the above-mentioned conventional drive device, the door 10
One end surface (upper end surface) 105c of 5 is a substantially horizontal surface (front surface 105a or rear surface 1
Since it was formed on the surface substantially perpendicular to 05b (door 105
In some cases, when injection molding is made of plastic, there is a slight downward slope from the back side 105b side to the front side 105a side in order to create a so-called draft angle), but there were the following problems. .

(1) When inserting the disc-shaped recording medium 104, if the disc-shaped recording medium 104 is facing upward, the front end of the disc-shaped recording medium 104 is the door 1 as shown in FIGS.
In some cases, the disc-shaped recording medium 104 cannot be smoothly inserted due to being caught on one end surface (upper end surface) 105c of the hinge shaft 106 side of 05.

(2) If the disc-shaped recording medium 104 is forcibly pushed in while the tip of the disc-shaped recording medium 104 is caught on one end surface (upper end surface) 105c of the door 105, the hinge shaft 1
06 may come off from the bearing 107, or the door 105 may be plastically deformed or broken.

The present invention has been made for the purpose of solving the above-mentioned conventional problems and providing a drive device in which the tip of a disk-shaped recording medium is not caught on the upper end surface of a door.

[Means for Solving the Problem] One end surface of the door on the hinge shaft side is formed as an inclined surface that prevents the tip of the door from engaging (hooking) when the disk-shaped recording medium is inserted.

[Operation] Even if the front end of the disk-shaped recording medium comes into contact with the one end surface of the door on the hinge shaft side, since this surface is an inclined surface, the front end of the disk-shaped recording medium slides on the inclined surface and inside the apparatus. Will be introduced to.

[Embodiment] Next, a drive device for a disk-shaped recording medium according to the present invention will be described with reference to FIGS.

1 is a drive device of the present invention, the drive device 1
The front bezel 2 has a disc recording medium insertion port 3 formed therein, and the insertion port 3 is closed by a door 4. Then, when the floppy disk cartridge 5 as a disk-shaped recording medium is inserted through the insertion slot 3, the front surface 4a of the door 4 is pushed by the tip of the floppy disk cartridge 5,
The door 4 is rotated in the insertion direction of the floppy disk cartridge to open the insertion port 3 to allow the insertion of the floppy disk cartridge 5.

The door 4 is formed by plastic injection molding to have a predetermined wall thickness, and its upper end surface 4b has a front surface 4a to a back surface 4c.
On the inclined surface that has an upward slope of about 135 ° toward the side,
Further, the lower end surface 4d is approximately 120 from the front surface 4a toward the rear surface 4c.
The hinge shaft 6 is integrally formed on the upper end portion of the upper end surface 4b, that is, on the rear surface 4c side, while being formed on an inclined surface having a downward slope of about °.

Then, the hinge shaft 6 is pivotally supported by the bearing portion 7 provided above the insertion opening 3 in the front bezel 2 so that the door 4
Is rotatable about the hinge shaft 6 so that the front bezel 2 can rotate.
2 is attached to the hinge shaft 6 by a torsion coil spring (not shown), and a clockwise turning force is applied to the front face 4a or the like of the front bezel 2 which contacts the inner face of the front bezel 2. The insertion port 3 is closed from the inside.

In FIG. 1, reference numeral 8 is a chassis to which the front bezel 2 is attached, and a disk holder 9 is attached to the chassis 8 so as to be vertically movable, and the insertion opening 3
Insert the floppy disk cartridge 5 from
The door 4 is opened at the tip thereof, the floppy disk cartridge 5 enters the disk holder 9, and the shutter 11 of the floppy disk cartridge 5 is opened by the shutter opening / closing arm 10 provided on the upper surface of the disk holder 9, and the floppy disk cartridge 5 is opened. When the floppy disk cartridge 5 is inserted to a predetermined position, the floppy disk cartridge 5 descends together with the disk holder 9 with the door 4 kept open at the rear end side thereof.
The hub 13 of the floppy disk 12 therein is chucked on the turntable 14 of the chassis 8. 15 is a magnetic head and 16 is an eject button.
When is pressed, the disk holder 9 is raised and the floppy disk cartridge 5 is pushed out from the insertion slot 3.

The drive device according to the embodiment has the above-described structure, and the upper end surface 4b of the door 4 is inclined to the front surface 4a by approximately 135 °, so that the front surface 4a shown in FIG. 2 is substantially vertical. Insertion slot 3
When the floppy disk cartridge 5 is inserted from the state in which the door 4 is closed and the door 4 is opened by about 45 ° as shown in FIG. 3, the upper end surface 4b becomes substantially vertical.

Therefore, even if the floppy disk cartridge 5 is inserted upward as shown in FIG. 3 and the tip of the floppy disk cartridge 5 comes into contact with the upper end surface 4b, when the floppy disk cartridge 5 is further inserted, the force is exerted. The door 4 is further opened, and the upper end surface 4b is inclined downward with respect to the inserting direction of the floppy disk cartridge 5 as shown in FIG.
, The upper end surface 4b acts on the floppy disk cartridge 5 in a direction to push it down, so that the floppy disk cartridge 5 is smoothly inserted into the cartridge holder 9 while the trajectory is corrected. Of. In the embodiment shown in the drawings, the upper end surface
Although the case where the inclination angle of 4b is approximately 135 ° is shown, the inclination angle may be 130 ° or more or 135 ° or less.
Further, the upper end surface 4b may be an arcuate surface (R-shaped surface) instead of the linear inclined surface, and in short, the disk-shaped recording medium such as the floppy disk cartridge 5 is not caught by the tip of the disk-shaped recording medium. Anything that can be smoothly inserted may be used.

[Effect of the Invention] The drive device for the disk-shaped recording medium of the present invention has the following effects.

(1) When inserting the disc-shaped recording medium, it is possible to prevent the tip of the disc-shaped recording medium from being caught on one end surface of the door on the hinge shaft side, and to smoothly insert the disc-shaped recording medium.

(2) It is possible to prevent the door from being deformed or damaged when the disk-shaped recording medium is inserted, or the hinge shaft from coming off from the bearing portion.

(3) Since the disc-shaped recording medium and the door are not caught, the degree of freedom in the mounting position of the door is increased.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a drive device for a disk-shaped recording medium according to the present invention, FIG. 2 is a sectional view of an essential part, and FIGS. 3-4 are sectional views showing an inserted state of the disk-shaped recording medium. FIG. 7 is a sectional view of a conventional example. 1 ... Drive device for disc-shaped recording medium, 2 ... Front bezel, 3 ... Insertion port, 4 ... Door, 4a ... Inclined end face of door, 5 ... Disc-shaped recording medium, 6 ... Hinge axis.

Claims (1)

(57) [Scope of utility model registration request] 1. When a disc-shaped recording medium is inserted from the insertion port, the front surface of the door for opening and closing the insertion port is pushed by the tip of the disc-shaped recording medium, and the door rotates on the back side of one end thereof. In a drive device for a disk-shaped recording medium having a door structure adapted to rotate about a hinge shaft that is pivotally supported so as to open an insertion port, one end surface of the door on the hinge shaft side is A drive device for a disk-shaped recording medium, wherein a tip end of the disk-shaped recording medium is formed on an inclined surface to prevent it from being caught when the disk-shaped recording medium is inserted.