Method of manufacturing gasket and seal structure
A manufacturing method and technology of seals, which are applied in the direction of engine seals, engine components, mechanical equipment, etc., can solve the problems of limited widening, and achieve the effect of suppressing peeling of seals and reliable sealing
Inactive Publication Date: 2008-11-05
BRIDGESTONE CORP
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Problems solved by technology
[0007] In order to suppress the peeling of the seal when it is scratched in the lateral direction, it is generally considered that the width of the seal should be increased. However, in hard disk devices that pursue miniaturization, the position of the seal is wider inward than the current situation, which may make the seal The part is in contact with the part on the inside, so the widening is limited
Method used
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Embodiment Construction
[0041] Hereinafter, an example of embodiment of the present invention will be described in detail with reference to the drawings.
[0042] The hard disk drive housing of this embodiment consists of figure 1The rectangular cover body 12 which is a sheet metal press-formed product shown in the plan view of , and the box-shaped main body (not shown) combined with this cover body 12 are comprised.
[0043] Such as figure 1 as well as figure 2 As shown, a flange 14 of constant height is formed on the outer peripheral portion of the cover 12, and a recess 16 for avoiding the main body of the hard disk unit (not shown) is formed in the middle portion of the cover 12.
[0044] In this cover body 12 , a portion between the flange 14 and the concave portion 16 is a planar seal forming surface 18 . In addition, round holes 20 are formed at the four corners of the cover body 12 through which screws used to attach the cover body 12 to the main body pass.
[0045] An elastic seal 22 is...
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Abstract
Disclosed are a method of manufacturing a gasket capable of securely sealing by suppressing the peeling of the gasket during assembly; and a seal structure. In a first extrusion step, a liquid gasket agent (24) is extruded onto a gasket forming surface as shown in figure 3(A). In the gasket agent (24), the height (h) of the portion where the gasket agent (24) is contacted with the inner surface (14A) is set lower than the height (H) of the flange. In a second extrusion step, the liquid gasket agent is extruded onto a portion where the agent is extruded in the first extrusion. In the same manner as in the first step, the height (h) of the portion where the gasket agent (24) is contacted with the inner surface (14A) is set lower than the height (H) of the flange while the gasket agent is brought into contact with the inner surface (14A) of the flange (14), and then the gasket agent (24) is hardened. Since the side part of the gasket (22) is fixed to the inner surface (14A) of the flange(14), the gasket (22) is hard to peel off the gasket forming surface (18), even if a lateral force acts on the gasket (22).
Description
technical field [0001] The present invention relates to a manufacturing method and a sealing structure of a gasket, in particular to a manufacturing method and a sealing structure capable of preventing the gasket from peeling off during assembly. Background technique [0002] In recent years, high performance and miniaturization have been promoted in computer hard disk drives, which have increasingly complex structures, and even microscopic dust can cause malfunctions. Therefore, in practical terms, dustproofing is highly necessary. In order to combine the main body and The inside of the hard disk formed by the cover is airtight to prevent dust from entering. Generally, a sealing member is used for the sealing part between the main body and the cover. [0003] Patent Document 1: Japanese Patent Laid-Open No. 2003-247644 [0004] However, conventional seals have the following problems. [0005] For example, after the seal is installed on the cover, the cover and the main bo...
Claims
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Login to View More IPC IPC(8): F16J15/14
CPCF16J15/14
Inventor 浦中昌己
Owner BRIDGESTONE CORP