SEALING DEVICE

SEALING DEVICE

PROBLEM TO BE SOLVED: To improve durability by preventing generation of a small crack by generation of very large stress at a rubber part which is brought into contact with an opening edge of a hole of a metallic ring due to a pinching load. SOLUTION: A ring-like concave portion 16 is provided along...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser: YAMASHINA KATSUMI
Format: Patent
Sprache:eng
Schlagworte:
BLASTING
CYLINDERS
ENGINEERING ELEMENTS AND UNITS
GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS
HEATING
LIGHTING
MECHANICAL ENGINEERING
PISTONS
SEALINGS
THERMAL INSULATION IN GENERAL
WEAPONS
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Beschreibung
Zusammenfassung:PROBLEM TO BE SOLVED: To improve durability by preventing generation of a small crack by generation of very large stress at a rubber part which is brought into contact with an opening edge of a hole of a metallic ring due to a pinching load. SOLUTION: A ring-like concave portion 16 is provided along a plurality of holes 15 of a metallic ring 13 to a surface of a rubber part 14 on a side of sealed object which is brought into contact with a rod guide 30 of the sealing device 10. Accordingly, the surface of the rubber part 14 as an opening edge of the hole 15 is not directly loaded, stress to a contact part B which comes into contact with an opening edge of the rubber part 14 can be reduced, generation of a small crack can be prevented, and durability can be improved.