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Rubber ring for gasket

A technology of rubber rings and gaskets, which is applied in the direction of engine sealing, engine sealing devices, machines/engines, etc., can solve problems such as large stress, and achieve the effect of reducing stress and inhibiting peeling

Active Publication Date: 2013-09-18
ISHIKAWA GASKET CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the vicinity of the front end of the hole edge portion of the metal plate 62 embedded in the sealing rubber 61, the stress becomes large.

Method used

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  • Rubber ring for gasket
  • Rubber ring for gasket
  • Rubber ring for gasket

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0037] figure 1 shows a gasket 30 having the rubber ring 1 for gaskets of the present invention, figure 2 It is a figure showing the structure of the main part of the said rubber ring 1 in enlarged cross-section.

[0038] figure 1 The gasket 30 shown is a member provided between the cylinder block and the cylinder head in order to improve the sealing performance between the cylinder block and the cylinder head in an internal combustion engine such as an automobile. A combustion chamber hole 31 is provided at a position corresponding to the combustion chamber, and a water hole 32 for passing cooling water and an oil hole 33 for passing oil are arranged around the combustion chamber hole 31 . In addition, there are bolt holes 34 for inserting bolts that tightly connect the cylinder block and the cylinder head. The gasket 30 has two gasket plates 35, 36 having approximately the same shape on both upper and lower sides (see figure 2 ), the rubber ring 1 installed on the ga...

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PUM

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Abstract

A rubber ring for a gasket has a first bulging portion composing a seal portion; a second bulging portion composing an attachment portion; and a depressed portion between the first bulging portion and the second bulging portion. The first bulging portion includes a thickest portion carrying out a sealing function, and when the rubber ring is compressed from both sides, the second bulging portion and the depressed portion have a thickness which does not contact with the faces sandwiching the gasket. An end of the metal plate is positioned in a range of the depressed portion between the first bulging portion and the second bulging portion, and between changing points wherein each of slope face, sloping toward the depressed portion from the two bulging portions, changes into a curved surface concaving on an outer side from a curved surface projecting on the outer side.

Description

technical field [0001] The present invention relates to a rubber ring for a gasket, which is used to ensure the sealing performance of the gasket part such as a fluid hole of the gasket, and is bonded to a ring-shaped sealing rubber on the edge of the hole of a metal plate. Background technique [0002] Gaskets for internal combustion engines such as automobile engines are provided between the cylinder block and the cylinder head in order to improve the sealing performance between the cylinder block and the cylinder head. The gasket is provided with: a combustion chamber hole opening to the combustion chamber of the cylinder block, a bolt hole for inserting a bolt that tightly combines the cylinder block and the cylinder head, and a water hole for passing cooling water and for using Fluid holes such as oil holes through which oil passes. [0003] The rubber ring for gasket is mainly used to ensure the sealing performance of the fluid hole of such a gasket. The end surface o...

Claims

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Application Information

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IPC IPC(8): F16J15/12
CPCF16J15/0818F16J15/0825F16J15/123F16J2015/085F16J2015/0856F16J2015/0862F02F11/00F16J15/08F02F11/002
Inventor 栋方裕
Owner ISHIKAWA GASKET CO LTD
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