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1. (WO2018100845) STAKING AFFIXATION STRUCTURE FOR PLUNGER PUMP, BRAKE DEVICE, AND METHOD FOR MANUFACTURING BRAKE DEVICE

Pub. No.:    WO/2018/100845    International Application No.:    PCT/JP2017/033464
Publication Date: Fri Jun 08 01:59:59 CEST 2018 International Filing Date: Sat Sep 16 01:59:59 CEST 2017
IPC: F04B 1/04
B21D 39/00
B60T 8/34
F04B 53/00
F16B 4/00
Applicants: HITACHI AUTOMOTIVE SYSTEMS, LTD.
日立オートモティブシステムズ株式会社
Inventors: MISUNO, Masaki
御簾納 雅記
OOHIRA, Atsuki
大平 淳喜
NAKAZAWA, Chiharu
中澤 千春
Title: STAKING AFFIXATION STRUCTURE FOR PLUNGER PUMP, BRAKE DEVICE, AND METHOD FOR MANUFACTURING BRAKE DEVICE
Abstract:
Provided is a staking affixation structure for a plunger pump, which is characterized in that: a housing is deformed and staked to a member to which the housing is to be staked, thereby enabling a plunger pump accommodated within a hole in the housing to be affixed to the housing; and in the deformed and staked region directed perpendicularly to the operating shaft of the plunger pump, the volume of the portion of the housing, which is deformed and staked toward the inside of the inner wall of the hole, in which the member to which the housing is to be staked is disposed, is greater than the volume of a projection space formed by projecting the inner wall of the hole, in which the member to which the housing is to be staked is disposed, on a region extended in the direction of the operating shaft of the plunger pump toward the inside of a shear surface of the housing.