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Cover and method for making rolled material for cover

A manufacturing method and a technology for lids are applied in the field of manufacturing lids and rolled products for lids, which can solve the problems of many operation procedures and cumbersome work, and achieve the effect of simplifying the operation procedures.

Inactive Publication Date: 2014-02-19
NHK SPRING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] However, the stainless steel vibration-damping steel plate disclosed in Patent Document 1 has the problem that many working steps are required due to lamination of a plurality of steel plates.

Method used

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  • Cover and method for making rolled material for cover
  • Cover and method for making rolled material for cover
  • Cover and method for making rolled material for cover

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Embodiment Construction

[0027] Hereinafter, modes for implementing the present invention will be described in detail with reference to the drawings. In addition, this invention is not limited by the following embodiment. In addition, each drawing referred to in the following description merely shows shape, size, and positional relationship briefly so that the content of this invention can be understood. That is, the present invention is not limited to the shapes, sizes, and positional relationships illustrated in the drawings. In addition, in the following description, the structure of the hard disk drive which is a precision equipment is demonstrated as an example of a cover.

[0028] figure 1 It is a perspective view showing a schematic configuration of the hard disk device according to the embodiment of the present invention. in addition, figure 2 It is an exploded perspective view showing a schematic configuration of the hard disk device according to the embodiment of the present invention. ...

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Abstract

Provided are a cover and a method for making a rolled material for a cover, with which it is possible for the work involved to be reduced and simplified. A cover (2b) is provided on a hard disk device (1) and covers at least the top surface of a drive mechanism of the hard disk device (1). Surface processing is carried out at the same time as rolling, and the arithmetic mean roughness of the outside and the inside is different. By forming the cover (2b) using a rolled material in which the arithmetic mean roughness of the inside is less than the arithmetic mean roughness of the outside, it is possible for the work involved to be reduced and simplified.

Description

technical field [0001] The present invention relates to a cover used in hard disk devices and a method for manufacturing a rolled product for the cover. Background technique [0002] Conventionally, hard disk devices have been used in precision equipment that performs information processing such as computers. Until recently, this hard disk device has been used not only as an external storage device for a computer, but also installed in home appliances such as televisions and video cameras, and electronic devices for automobiles. [0003] In a conventional hard disk drive, a drive mechanism is accommodated in a case main body covered by a cover. In the conventional caps, it is required that scratches and stains are not conspicuous on at least the surface on the outer side, and in accordance with this requirement, caps having specifications (matte treatment) that are not conspicuous in scratches and stains on at least the outer surface are used. As a further required charact...

Claims

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Application Information

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IPC IPC(8): B21B1/22B21B27/00G11B33/14
CPCG11B25/043
Inventor 中村刚舌间淳
Owner NHK SPRING CO LTD
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