公开(公告)号：US11215293B2

公开(公告)日：2022-01-04

申请号：US16648763

申请日：2018-09-21

Applicant: ADVICS CO., LTD.

Inventor： Junichi Fukuda ,  Koichi Hashida ,  Hidenori Hayakawa

IPC: F16K31/06 ,  F04B53/10 ,  H01F7/13 ,  H01F7/08 ,  H01F7/16

Abstract: A yoke is provided with a notch, notched from two points P1 and P2 on a circumference forming a sleeve-side insertion hole toward the outside of the circumference, the notch having a minimum distance between the points P1 and P2 as a width W and the distance from a straight line linking the points P1 and P2 in a direction orthogonal to the straight line as a length L. The width W of the notch is set on the basis of a target attraction force for attracting a plunger, the attraction force increasing with an increase in the width W, and the length L of the notch is greater than or equal to a prescribed length Ld where the attraction force increasing with an increase in the length L becomes constant at the target attraction force in the set width W irrespective of an increase in the length L.

公开(公告)号：US09664205B2

公开(公告)日：2017-05-30

申请号：US14719989

申请日：2015-05-22

Applicant: ADVICS CO., LTD.

Inventor： Koichi Hashida

IPC: F16L11/04 ,  F15B1/02 ,  F04B53/00 ,  F04B53/16 ,  F15B1/08 ,  F04B11/00 ,  F16L55/04

CPC classification number: F15B1/021 ,  F04B11/00 ,  F04B11/0008 ,  F04B53/00 ,  F04B53/16 ,  F15B1/04 ,  F15B1/08 ,  F15B21/008 ,  F15B2201/22 ,  F16L55/04

Abstract: A hydraulic damper disposed in a discharge-side passage of a hydraulic pump comprises a bladder made of elastic material and formed into a cylindrical shape, a core, and a plug. The bladder includes a spherical closed end portion at its one end and an open end portion at its the other end. The open end portion includes an annular flange portion extending outwardly in the radial direction. The core includes an inserted portion to be inserted into the bladder and an annular flange portion extending outwardly in the radial direction so as to contact with an end face of the open end portion of the bladder. The inserted portion has a large-diameter portion, a small-diameter portion and a gradually-changing diameter portion formed between the large-diameter portion and the small-diameter portion and forming an air chamber in the bladder together with the small chamber.

公开(公告)号：US20190219115A1

公开(公告)日：2019-07-18

申请号：US16307042

申请日：2017-06-07

Applicant: ADVICS CO., LTD.

Inventor： Koichi Hashida

IPC: F16D65/12

CPC classification number: F16D65/123 ,  F16D65/0006 ,  F16D65/12 ,  F16D65/128 ,  F16D2065/132 ,  F16D2065/1328 ,  F16D2065/1392 ,  F16D2200/0013 ,  F16D2200/0021 ,  F16D2200/003

Abstract: A brake disc applies braking torque to a vehicle wheel by sliding against friction pads. The brake disc is configured from at least one or more auxiliary discs that slide against the friction pads, main discs in surface contact with the auxiliary discs at surfaces on the sides opposite the surfaces against which the auxiliary discs and friction pads slide, and a hat member that secures the main discs and the auxiliary disc in a state of being capable of slight displacement relative to each other.