JPS6383951A - Receiver mechanism for floppy disk device - Google Patents

Abstract

PURPOSE:To prevent the slipping of a roll in case of an assembling work by providing a shaft part having a taper part and the roll which is attached to the shaft part to be engaged with an eject mechanism. CONSTITUTION:When each roll 22 is inserted to a shaft part 21 provided on the side face of a receiver 10, it is detained by a taper part 24 whose outside diameter is slightly larger than the inside diameter of a hollow part 25 of the roll 22. When the roll 22 is inserted furthermore by pushing in, a taper part 24 larger than the inside diameter of the roll 22 bits into the roll 22, and the roll 22 is fitted to the shaft part 21. Since the maximum outside diameter of the taper part 24 is set to such size that the hollow part 25 can be fitted and the materials of the shaft part 21 and the roll 22 are slightly elastic plastics in this case, the roll 22 is fitted to the shaft part 21. Since the inside diameter of the hollow part 25 of the roll 22 fitted to the shaft part 21 is slightly larger than the outside diameter of a columnar part 23 and the inside diameter of the hollow part 26 is slightly larger than the maximum outside diameter of the taper part 24, the roll 22 is freely rotated with the shaft part 21 as the axis.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to a receiver mechanism for, for example, a 3.5-inch floppy disk device.

(Prior Art) Conventionally, a 3.5-inch floppy disk device is configured such that when a magnetic recording medium (disk) housed in a hard case is inserted from outside the device, it is held by a case-shaped receiver. ing. The receiver engages with an eject plate constituting an eject mechanism and moves up and down, loads the disk onto the spindle hub, and unloads the disk when ejecting the disk to the outside.

As shown in FIG. 3 (partial side view), the receiver 10 is provided with a shaft portion 11, which is a projection, on its side surface, and a roller 12 is fitted onto this shaft portion 11.

As shown in FIG. 4, the roller 12 is formed so that the inner diameter of its hollow portion is slightly larger than the outer diameter of the shaft portion 11, and is configured to freely rotate. This roller 12 is
The receiver 10 moves up and down by engaging with an eject plate that constitutes an eject mechanism.

By the way, the rollers 12 are usually provided at about six locations on the side surface of the receiver 10. When assembling a floppy disk device, a roller 12 is attached to the shaft portion 11 of the receiver 10.
The eject plate 13 is then assembled so that the eject plate 13 is engaged with the eject plate 13. At this time, since the roller 12 is configured to freely rotate, the roller 12 may fall off from the shaft portion 11 when the receiver 10 is tilted. Therefore, after fitting the rollers 12, it is necessary to carry out the assembly work while holding down all the rollers 12 so that they do not fall off, resulting in poor workability.

(Problems to be Solved by the Invention) In the conventional floppy disk device (111S), the roller attached to the receiver has a structure that easily falls off, resulting in poor workability during assembly. There's a problem.

An object of the present invention is to improve the workability of assembling a receiver mechanism when assembling a floppy disk device.
The object of the present invention is to provide a receiver mechanism for a floppy disk device that can perform the following functions.

[Structure of the Invention (Means and Effects for Solving Problems)] The present invention provides a receiver for holding a magnetic recording medium inserted from the outside, and a receiver for loading or ejecting the magnetic recording medium by engaging the receiver. A receiver mechanism for a floppy disk drive equipped with an eject mechanism includes a shaft portion having an inclined portion and a roller mounted on the shaft portion for engaging with the eject mechanism. The shaft portion has a cylindrical shape provided on the side surface of the receiver, and has a distal end having an outer diameter larger than the outer diameter of the cylinder, and has an inclined portion such that the outer diameter decreases toward the distal end.

The roller has a hollow part that freely rotates around the shaft, and the inner diameter of the hollow part is slightly smaller than the maximum outer diameter of the inclined part of the shaft to the extent that it can be fitted (1 is also formed). has been done.

With such a configuration, it is possible to prevent the roller attached to the receiver from falling off even if the receiver is tilted during assembly work.

(Example) An example of the present invention will be described below with reference to the drawings. 1st
The figure is a side view showing a partial configuration of the receiver mechanism of the same embodiment, and FIG. 2 is an exploded perspective view of the receiver mechanism of the same embodiment. As shown in FIG. 2, the receiver mechanism consists of a receiver 10 that holds a disk inserted from the outside, an eject mechanism that includes an eject plate 13, a load spring 14, and the like. The receiver 10 is configured such that a number of stages of rollers 22 attached to the side surface engage with the inclined holes 15 of the eject plate 13 and move up and down.

The rollers 22 are made of plastic, for example, and are attached to each of the shaft portions 2I of the number of stages formed on the side surface of the receiver 10 so as to have rotational positions (1:, as shown in FIG. 2). is made of plastic, for example.
As shown in FIG. 1, it consists of a cylindrical portion 23 joined to the side surface of the receiver 10 and a tapered portion (slanted portion) 24 having an outer diameter larger than the outer diameter of the cylindrical portion 23 formed at the tip. The tapered portion 24 is formed so that its outer diameter decreases toward the J direction of the tip. The roller 22 is connected to the cylindrical portion 2 of the shaft portion 21.
A hollow portion 25 with an inner diameter slightly larger than the outer diameter of No. 3 and smaller than the maximum outer diameter of the tapered portion 24, and a hollow portion 26 formed continuously with this hollow portion 25 and having an inner diameter slightly larger than the maximum outer diameter of the tapered portion 24. It has a hollow part consisting of.

Next, the effects of this embodiment will be explained. First, in the receiver mechanism, when a disk is inserted into the receiver [0], the receiver IO descends toward the spindle hub (not shown) and loads the disk. At this time, as shown in FIG. 2, the receiver lOO roller 21 engages the inclined hole 15 of the control plate 13,
will go down.

When ejected in this state, the roller 21 moves from the inclined hole 15 of the eject plate 13 to the flat portion, and the receiver 10 rises. As a result, the disc becomes unloaded and is further ejected from the receiver 10 to the outside.

By the way, when assembling the receiver mechanism as described above, each roller 22 is inserted into each of the shaft portions 21 provided on the side surface of the receiver 10, as shown in FIG.

In this case, when the roller 22 is inserted into the shaft portion 21, as shown in FIG. 1, it is locked at the tapered portion 24 having an outer diameter slightly larger than the inner diameter of the hollow portion 25 of the roller 22. Furthermore, when the roller 22 is inserted so as to be pushed in, the roller 12 is inserted in such a manner that it bites into the portion of the inclined portion 22 that is larger than its inner diameter, and is then fitted. In this case, the maximum outer diameter of the tapered portion 24 is large enough to fit the hollow portion 25, and the shaft portion 21 and the roller 22 are made of plastic with some elasticity. It can be fitted into the shaft portion 21.

When the roller 22 is fitted onto the shaft portion 2, the inner diameter of the hollow portion 25 is slightly larger than the cylindrical portion 23, and the inner diameter of the hollow portion 26 is slightly larger than the maximum outer diameter of the tapered portion 24.
1 as an axis and can freely rotate.

Further, since the inner diameter of the hollow portion 25 is slightly smaller than the maximum outer diameter of the tapered portion 24, the roller 22 after being fitted is attached to the shaft portion 21.
It will not fall off. Therefore, even if the receiver 10 is tilted, the roller 22 will not fall off the shaft portion 21 due to its own weight.

After installing the roller 22 in this manner, the receiver 10 and the eject mechanism are combined. When the receiver machine ( , 11 ) operates, the roller 22 rotatably operates on the inclined portion 15 or flat portion of the eject plate 13 .

In this way, the roller 2 necessary for the operation of the receiver mechanism
By providing the tapered portion 24 on the shaft portion 21 of the receiver 10 for attaching the roller 22, the roller 22 can be locked when attached to the shaft portion 21. Therefore, when the receiver 10 and the eject mechanism are combined after the roller 22 is attached to the receiver 10, it is possible to prevent the roller 22 from falling off the shaft portion 21 even if the lane bar lO is tilted. Further, when the receiver mechanism is operated after the receiver lO and the eject mechanism are combined, the roller 22 is rotatably operated with respect to the shaft portion 21. Therefore, after assembly, the roller 22 engages with the eject plate 13 and operates without any problem, and the receiver mechanism operates reliably.

[Effects of the Invention] As detailed above, according to the present invention, it is possible to prevent the roller attached to the receiver from falling off when assembling the receiver mechanism. Therefore, during the assembly process, it is possible to prevent the roller from being lost or mixed into other mechanisms, and there is no need to press the roller. Therefore, the work in the process of assembling the receiver mechanism can be simplified and ensured, and the assembling workability can be improved. As a result, it is possible to realize two improvements in the assembly work of the entire floppy disk device.

[Brief explanation of the drawing]

FIG. 1 is a side view showing a partial configuration of an embodiment of the present invention, FIG. 2 is an exploded perspective view of the same embodiment, and FIGS. 3 and 4 are side views of a conventional receiver device 11η, respectively. be. 10...Receiver, kl, 21...Shaft portion, 12.
'22...Roller, 13...Eject plate, 15...Slanted hole, 23...Cylindrical part, 24...Protrusion part, 25.26...Hollow part. Applicant's representative Patent attorney Takehiko Suzue Figure 1 Figure 2 Figure 4 Procedural amendments Showa 64/1 Th Japanese Patent Office Commissioner Kuro 1) Akio Tono 1, Case Indication Patent Application No. 1988-230681 2 , Name of the invention Receiver mechanism for floppy disk device 3, Relationship to the amended case Patent applicant (307) Toshiba Corporation 4, Agent USE Building 7, 3-7-2 Kasumigaseki, Chiyoda-ku, Tokyo;
Contents of the amendment (1) On page 4, line 16 of Meiiii, the words ``shaft portion and J'' are corrected to ``an eject plate and''. (2) In the specification, page 5, line 18, page 6, lines 19 to 20, and page 7, line 2, the words "slanted hole 15" are corrected to "slanted part 15." . (3) "Roller 21" on page 6, line 19 and page 7, line 1 of the specification is corrected to "roller 22." (4) On page 7, line 13 of the specification, "roller 12" is corrected to "row 522." (5) In the 13th and 14th lines of page 7 of the specification, the phrase "large inclined portion 22" is corrected to read "large inclined portion 24." (6) In the 6th line of page 10 of Akira Am, the words "slanted hole" are corrected to "slanted part." (7) Figure 2 of the drawing is corrected as shown in the attached sheet.

Claims (2)

[Claims] (1) A receiver mechanism of a floppy disk device comprising a receiver that holds a magnetic recording medium inserted from the outside and an eject mechanism that engages with the receiver to load or eject the magnetic recording medium, wherein the receiver A cylindrical shaft provided on a side surface, the tip of which has an outer diameter larger than the outer diameter of the cylinder, and an inclined portion such that the outer diameter decreases toward the tip; and a shaft that is freely movable around this shaft. and a roller for engaging the ejecting mechanism, the roller having a hollow portion that rotates to the ejecting mechanism, and the inner diameter of the hollow portion being smaller than the maximum outer diameter of the inclined portion of the shaft portion to the extent that the inner diameter of the hollow portion can be fitted. A receiver mechanism for a floppy disk device characterized by: (2) The roller has a first hollow portion formed to have an inner diameter smaller than the maximum outer diameter of the inclined portion of the shaft portion to the extent that it can be fitted, and a first hollow portion that is continuous with the first hollow portion and has an inner diameter that is smaller than the maximum outer diameter of the inclined portion of the shaft portion. 2. The receiver mechanism for a floppy disk device according to claim 1, further comprising a second hollow portion formed larger than the maximum outer diameter of the inclined portion of the shaft portion.