Invention Grant
US08169747B2 Cushioning ramp having a stepped structure for a magnetic disc apparatus
有权
具有用于磁盘装置的台阶结构的缓冲斜坡
- Patent Title: Cushioning ramp having a stepped structure for a magnetic disc apparatus
- Patent Title (中): 具有用于磁盘装置的台阶结构的缓冲斜坡
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Application No.: US12547027Application Date: 2009-08-25
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Publication No.: US08169747B2Publication Date: 2012-05-01
- Inventor: Shota Seki , Shuichi Kiyomoto , Nobuyuki Oka , Michiya Totoki , Teruhiro Nakamiya , Takeji Sumiya , Tomoki Hiramatsu , Kohji Takahashi
- Applicant: Shota Seki , Shuichi Kiyomoto , Nobuyuki Oka , Michiya Totoki , Teruhiro Nakamiya , Takeji Sumiya , Tomoki Hiramatsu , Kohji Takahashi
- Applicant Address: JP JP
- Assignee: Nippon Mektron, Ltd.,Hitachi Global Storage Technologies Netherlands B.V.
- Current Assignee: Nippon Mektron, Ltd.,Hitachi Global Storage Technologies Netherlands B.V.
- Current Assignee Address: JP JP
- Agency: Harness, Dickey & Pierce, P.L.C.
- Priority: JP2008-231788 20080910
- Main IPC: G11B5/54
- IPC: G11B5/54

Abstract:
For cushioning a shock to prevent problems such as a reading error, a ramp for a magnetic disc apparatus is made of a resin material for forming a ramp main body and a material having higher rigidity than the resin material, disc facing surfaces in the disc insertion portion for inserting a magnetic disc is provided with disc contact portions made of the high rigidity material, a bottom surface portion of a concave portion of the disc insertion portion is constructed by a combination of a bottom surface portion made of the resin material and a bottom surface portion made of the high rigidity material, and a step structure is provided by arranging the bottom surface portion made of the high rigidity material at a position moved rearward in a depth direction of the concave portion in comparison with the bottom surface portion made of the resin material.
Public/Granted literature
- US20100061012A1 RAMP FOR MAGNETIC DISC APPARATUS Public/Granted day:2010-03-11
Information query
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