JPH058743U - Latch device for slider in floppy disk device - Google Patents

Abstract

(57) [Abstract] [Purpose] An object of the present invention is to provide a slider latch device that is easy to manufacture, has an accurate latch timing, and does not cause a sliding contact failure. [Structure] The side edge 6a of the slider 6 made of sheet metal on the side of the latch lever is bent downward, and a U-shaped slit 10 is provided in the bent portion of the protruding piece 9 thereof, and the sliding contact portion 9a is bent 90 ° to the outside. To form engaging portions 9b and 9c with the latch lever.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a slider latch device in a floppy disk device (hereinafter referred to as FDD).

[0002]

[Prior Art]

 FIG. 1 shows an example of a conventional latch device. When a floppy disk 1 (hereinafter referred to as FD) is inserted in the a direction, a latch lever 2 rotates about a shaft 3 in the b direction, and a shutter 4 of the FD 1 is rotated. Is released and when it is rotated to the position of the imaginary line, the latch portion 7 provided on the slider 6 is disengaged from the arc-shaped outer edge 5a of the engaging portion 5, and engages with the hooking portion 5b. It is configured to latch the FD1 in the pushed-in position. FIG. 2 is an enlarged perspective view showing the structure of the latch portion 7, which is a simple one in which a part of the sheet metal slider 6 is simply bent downward. Although this structure is easy to manufacture, it has a drawback in that the latch lever 2 has a sliding failure (slip is bad) and abrasion powder is generated due to a fractured surface or burr of the sheet metal. As an improvement of this problem, as shown in FIG. 3, there is one in which a plastic auxiliary component 8 is attached to the contact portion with the latch lever 2, but it has the drawback of increasing the number of components and increasing the cost. It was

[0003]

[Problems to be solved by the device]

 An object of the present invention is to obtain a latch device for a slider that can achieve accurate latch timing only by sheet metal press molding without increasing the number of parts.

[0004]

[Means for Solving the Problems]

 In this invention, a U-shaped or Y-shaped slit is provided and bent into an L-shape to form a latch portion composed of a sliding contact portion with a latch lever and an engaging portion.

[Function] Since the outer edge of the latch lever comes into contact with the slidable contact portion (surface) formed by bending, no sliding failure occurs, and the latch timing is determined by the end of the slidable contact portion. A latch device with accurate latch timing is obtained.

FIG. 4 shows an embodiment of the present invention, in which a side edge 6a of the sheet metal sligo 6 on the latch lever side is bent downward, and a U-shaped slit 10 is formed in the bent portion of the protruding piece 9. It is provided and bent outward by 90 ° to form engaging portions 9b and 9C between the sliding contact portion 9a and the latch lever 2. The slit may be formed in a Y-shape so that the number of engaging portions 9b is two or more. According to this structure, the arc-shaped outer edge 5a of the latch lever 2 is flat until the latching portion 5b of the latch lever 2 and the latch portion of the slider 6, that is, the engaging portions 9b and 9C are engaged. Since the sliding contact portion 9a is in sliding contact with the sliding contact portion 9a, the sliding contact portion 9a does not cause a sliding failure or abrasion powder as in the conventional structure shown in FIG. Since the latch timing can be set accurately by the portion 9b, it is possible to solve the damage to the magnetic head and other obstacles due to the defective latch timing as in the conventional case. Moreover, there is no increase in cost because the structure can be formed only by pressing without using separate parts.

[0006]

[Effect of the device]

 According to this invention, it is possible to obtain a latch device for a slider that is easy to manufacture, has an accurate latch timing, and does not cause a sliding contact failure.

[Brief description of drawings]

FIG. 1 is a plan view of a conventional latch device.

FIG. 2 is an enlarged perspective view showing a structure of a latch portion of a conventional latch device.

FIG. 3 is an enlarged perspective view showing a structure of a latch portion of a conventional latch device.

FIG. 4 is a plan view and a perspective view of an embodiment of the present invention. 1 Floppy Disk 2 Latch Lever 3 Shaft 4 Shutter 5 Engagement Part 6 Slider 7 Latch Part 8 Auxiliary Component 9 Projecting Piece 10 Slit

Claims (1)

[Claims for utility model registration] [Claim 1] Floppy disk using a slider made of sheet metal
A floppy disk device in which a U-shaped or Y-shaped slit is provided and bent into an L-shape to form a latch portion including a sliding contact portion with a latch lever and an engaging portion. Latch Device for Slider