Title:
CAP BELLOWS ASSEMBLY AND ACCUMULATOR
Document Type and Number:
Japanese Patent JP2023111425
Kind Code:
A
Abstract:
To provide a cap bellows assembly capable of improving endurance of an elastic part fixed to a body part, and an accumulator.SOLUTION: A cap bellows assembly seals one end of a bellows provided inside of an exterior body of an accumulator composed of a bottom, a shell and a port, and includes: a cap body part covering an opening of the bellows; and a cap elastic part provided between the cap body part and the port and is fixed to the cap body part. The cap body part has an adhesive surface adhering the cap elastic part having zinc calcium treatment, and a hopeite quantity on the adhesive surface is 4.8% or less.SELECTED DRAWING: Figure 1
Inventors:
NAKANO NAOHITO
OTA DAIJIRO
DOI TAKASHI
KUROKAWA TOMOYA
OTA DAIJIRO
DOI TAKASHI
KUROKAWA TOMOYA
Application Number:
JP2022013278A
Publication Date:
August 10, 2023
Filing Date:
January 31, 2022
Export Citation:
Assignee:
NHK SPRING CO LTD
International Classes:
F15B1/10
Attorney, Agent or Firm:
Sakai International Patent Office