JPH02146170A - Receiver mechanism for floppy disk device - Google Patents

Abstract

PURPOSE:To ensure the chucking and ejecting operations of a magnetic recording medium by providing an air damper mechanism consisting of a projection part formed at the prescribed edge part of a receiver and a hollow projection part formed at the frame of a device. CONSTITUTION:When a magnetic recording medium 11 is inserted to a receiver 10 and the receiver 10 drops to a spindle mechanism side, a projection part 10a of the receiver 10 fits into the hollow part of a hollow projection part 17a of a frame 17, and force to push back the projection part 10a of the receiver 10 in a reverse direction to the drop is operated by air inside the hollow part of the hollow projection part 17a. For this reason, the dropping speed of the receiver 10 is suppressed, an impact due to the drop of the magnetic recording medium 11 held by the receiver 10 is relaxed. On the other hand, at the time of ejection, when the fitted projection part 10a separates from the hollow part of the hollow projection part 17a, since the force in the reverse direction is not operated, the ejecting operation is ensured.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to a receiver mechanism for a floppy disk device equipped with an air damper mechanism.

(Prior Art) Conventionally, for example, in a 3.5-inch floppy disk device, a receiver is used as a mechanism for attaching and detaching a magnetic recording medium. The receiver is configured to hold a magnetic recording medium inserted into the apparatus main body and fall toward the spindle mechanism (disk rotation mechanism) side. As a result, the magnetic recording medium is chaffed by the spindle mechanism and driven to rotate.

On the other hand, during ejection, the receiver rises away from the spindle mechanism. As a result, the magnetic recording medium comes off the spindle mechanism, moves to the ejection position due to the rise of register 1<, and is ejected. The receiver is engaged with an eject mechanism and is configured to fall or rise in conjunction with the eject mechanism.

By the way, when a magnetic recording medium is chucked by a spindle mechanism, a magnetic head mounted on a carriage mechanism comes into contact with the surface of the magnetic recording medium. Here, during chucking, the receiver falls to the side of the spindle machine, and this fall gives an impact to the magnetic recording medium or the magnetic head, causing damage in the worst case. In order to eliminate these drawbacks, a system has been developed in which the ejection mechanism is provided with an oil damper mechanism. In this method, the oil damper mechanism, which is a gear mechanism, suppresses the forward and backward movement speed, which is the operation of the ejecting mechanism, and as a result, the falling speed of the receiver is suppressed. However, since a gear mechanism is used, it is likely that the chucking of the magnetic recording medium will be incomplete due to poor engagement of the gears. Furthermore, since the operation of the eject mechanism is suppressed, a large insertion force is required when inserting the magnetic recording medium. Furthermore, since the operation of the ejecting mechanism is suppressed even during ejection, the load during the ejecting operation of the magnetic recording medium becomes large, which becomes a factor that makes ejecting impossible.

(Problems to be Solved by the Invention) Conventionally, there is a method in which an oil damper mechanism is provided in the receiver mechanism of a floppy disk device to suppress the falling motion of the receiver and absorb shocks to the magnetic recording medium and the magnetic head. However, this method has the disadvantage that the chucking or ejecting operation of the magnetic recording medium tends to be incomplete.

SUMMARY OF THE INVENTION An object of the present invention is to provide a receiver mechanism for a floppy disk device that can reliably perform chucking and ejecting operations of a magnetic recording medium, and can absorb shock to the magnetic recording medium and magnetic head caused by a fall of the receiver. There is a particular thing.

[Structure of the Invention] (Means and Effects for Solving the Problems) The present invention is a receiver mechanism for a floppy disk device that includes an air damper mechanism that utilizes air to absorb impact caused by movement of the receiver. This air damper mechanism consists of a protrusion provided at a predetermined end of the sea μ and a hollow protrusion provided on the frame of the device, and is configured so that the two fit together when the receiver falls. .

With such a configuration, the operation of the receiver is suppressed when chucking the magnetic recording medium, and it becomes possible to absorb the impact caused by the receiver falling.

(Example) The present invention will be described in detail below with reference to the drawings. FIG. 1 is a perspective view showing the configuration of, for example, a 3.5-inch floppy disk device according to the same embodiment. As shown in FIG. 1, the device of this embodiment is provided with a receiver 10, and a magnetic recording medium 11 (housed in a hard case) inserted into the device is held in the receiver IO. When the magnetic recording medium 11 is inserted, the eject mechanism 12 moves forward (toward the insertion port), and the receiver IO falls toward the spindle mechanism (not shown). As a result, the magnetic recording medium 11 is chucked by the spindle mechanism.

When the magnetic recording medium 11 is chucked, the receiver l
In conjunction with the fall of O, the magnetic head of Sl moves to the magnetic recording medium 1.
It falls onto and touches the surface of 1. The magnetic head of Sl is supported by the helad arm of the carriage mechanism 13, and
It is provided so as to face the magnetic head of O above and below. The carriage machine 1113 is driven by a lead screw mechanism 15 whose driving source is a stepping motor 14, and is configured to seek in the radial direction of the magnetic recording medium 11.

Further, in the receiver IO of the same embodiment, the falling speed is suppressed by, for example, the air damper mechanism 16 provided near the screw mechanism 15. The air damper mechanism IB is
As shown in FIG. 2 (side sectional view of FIG. 1 I-I), a cylindrical protrusion fOa is formed on a part of the plane of the receiver lO by, for example, press processing, and a cylindrical protrusion fOa is formed on the frame 17 constituting the device. It consists of a cylindrical hollow protrusion 17a. When the receiver IO falls toward the spindle mechanism, the cylindrical protrusion 10a of the receiver IO is configured to fit into the hollow part of the hollow protrusion 17a of the frame door.

Next, the effects of this embodiment will be explained. Magnetic recording medium 1
When the receiver 1 is inserted into the receiver 10, the receiver 0 falls toward the spindle mechanism. As a result, the magnetic recording medium l
O is chucked by the spindle mechanism. During this chucking, when the receiver IO falls, its falling speed is suppressed by the air damper mechanism 16. That is, when the receiver IO falls, the protrusion 10a of the receiver 10 fits into the hollow part of the hollow protrusion 17a of the frame 17, as shown in FIG. In this case, the air within the hollow portion of the hollow protrusion 17a exerts a force that pushes the protrusion 10a of the receiver IO back in the direction opposite to the direction in which it fell. Therefore, the falling speed of the receiver 10 is suppressed. As a result, the impact caused by dropping the magnetic recording medium 11 held by the receiver 10 is alleviated. Similarly, in conjunction with the fall of the receiver lO,
The falling operation of the Sl magnetic head loaded onto the surface of the magnetic recording medium 11 is also suppressed. Therefore, the impact between the magnetic head and the magnetic recording medium 11 during loading is alleviated. Therefore, as a result, the impact applied to the magnetic recording medium 11 and the magnetic head of Sl due to the fall of the receiver 10 is absorbed by the air damper mechanism IB.

On the other hand, at the time of ejection, the receiver lo rises and the magnetic recording medium 11 held by the receiver 10 is ejected. In this case, when the receiver 10 rises,
The fitted protrusion 10a is separated from the hollow part of the hollow protrusion 17a of the frame 17, but unlike when falling, no force in the opposite direction is applied. Therefore, the air damper mechanism 16 does not inhibit the operation of the receiver 10 during ejection, and the ejection operation is reliably executed.

Furthermore, since the air damper mechanism 1B is not acting when the magnetic recording medium 11 is inserted, a particularly large force is not required when inserting the magnetic recording medium 11. Moreover, since the air damper mechanism 1B of the same embodiment has a simple structure, it always operates reliably. Therefore, a situation in which the chucking operation of the magnetic recording medium 11 becomes incomplete due to incomplete operation of the air damper mechanism 16 is unlikely to occur.

In addition, in the above embodiment, the protrusion 10a and the hollow protrusion 17 constituting the air damper mechanism te are respectively connected to the receiver 1.
0 and the frame 17. However, the present invention is not limited to this, and the protrusion IDa and the hollow protrusion 17 are each made of separate parts, and the receiver 1
0 and the frame 17 using adhesive or the like, for example.

[Effects of the Invention] As detailed above, according to the present invention, in a floppy disk device equipped with a receiver mechanism, the operation of the receiver when chucking a magnetic recording medium is improved by using an air damper mechanism that uses air. can be suppressed. Therefore, the impact applied to the magnetic recording medium and the magnetic head due to the movement of the receiver can be absorbed. This makes it possible to prevent damage to the magnetic recording medium and magnetic head during chucking. Additionally, the air damper mechanism causes incomplete chucking and ejecting operations. Since such a situation is unlikely to occur, it is possible to always perform the chucking and ejecting operations of the magnetic recording medium reliably.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing the configuration of a floppy disk device according to an embodiment of the present invention, and FIG. 2 is a side sectional view taken along line II in FIG. lO...Receiver, 11...Magnetic recording medium, 12.
...Eject mechanism, loa...protrusion, 17a...
・Hollow protrusion. Applicant's agent Patent attorney Takehiko Suzue

Claims (1)

[Scope of Claims] A receiver mechanism of a floppy disk device for attaching and detaching a magnetic recording medium to and from a spindle mechanism, comprising: a receiver that holds the magnetic recording medium; and a receiver that holds the magnetic recording medium; An air damper in which a protrusion provided at a predetermined end of the receiver and a hollow protrusion provided on the frame of the device fit together, and the air within the hollow protrusion is used to absorb shock caused by movement of the receiver. A receiver mechanism for a floppy disk device, characterized in that it is equipped with a mechanism.