Nissin Kogyo Co., Ltd.

Autoliv Nissin Brake Systems Japan Co., Ltd.

Tetsuo Sasaki

Kazuhiro Tagata

Yoshiyuki Takamatsu

Takaomi Shirase

Kosuke Sasaki

Keita Murai

A vehicle brake hydraulic pressure control apparatus includes a base body and a solenoid valve. The solenoid valve is attached to an attachment hole which opens on one surface of the base body. A plurality of press-fitting portions that are press-fitted to an inner peripheral surface of the attachment hole are provided on an outer peripheral surface of the solenoid valve at an interval in a hole axis direction. Contact lengths, in the hole axis direction, between the inner peripheral surface of the attachment hole and two of the press-fitting portions are different from each other.

Vehicle brake hydraulic pressure control apparatus and method for manufacturing the same

An input device includes an input rod, a piston, and a cylindrical member. The cylindrical member includes a rod, a locking part, and a slit. The rod receiving part is provided on one end side in an axial direction and configured to receive the end part of the input rod. The locking part is formed on the other end side in the axial direction so as to lock an engaging part of the piston, thereby preventing the input rod from falling off the piston. The slit is formed over the length of the whole of the cylindrical member in the axial direction. The cylindrical member can be elastically deformed in a radial direction due to the slit.

Input device

A normally open electromagnetic valve includes: a fixed core; a movable core which is driven when excited; a valve seat member in the fixed core and having a funnel-shaped valve seat surface; a valve member disposed so that the valve member advances or retreats together with the movable core with one end of the valve member kept in contact with the movable core, and that the other end of the valve member closes or opens a flow passage by coming into contact with or separates from the valve seat surface; and a return spring. The fixed core has a cylindrical holding hole. The valve member advances or retreats being guided by the holding hole in sliding contact with the holding hole. The movable core has a projection which projects toward the fixed core and which is directly inserted into the holding hole.

Normally open electromagnetic valve

A normally opened solenoid valve includes: a coil; a fixed core; a movable core; a valve seat located at one of openings of a through hole formed in the fixed core; and a valve body inserted into the through hole. The valve body includes: a shaft part inserted into the through hole and pressed by the movable core; a valve part seated on or separated from the valve seat; and a connection part configured to connect the shaft part with the valve part. The connection part includes a conical portion increased in diameter toward the shaft part from the valve part. A plurality of reduced thickness portions, each having a concave shape as viewed in an axial direction, are formed in the conical portion. The reduced thickness portions are located at equal intervals in a circumferential direction of the conical portion.

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Nagano, Japan

Tetsuo Sasaki