PROBLEM TO BE SOLVED: To provide a brake liquid pressure control device for a vehicle capable of enhancing processing ability even when an oblique reservoir communication hole is provided on a base substrate.SOLUTION: An inner peripheral face 45a of a reservoir hole 45 has an annular recess 48 which comprises a taper surface 47 whose diameter is gradually expanded toward an opening 45c side from a bottom part 45b side of the reservoir hole 45, and a reservoir communication hole 49 for communicating the reservoir hole 45 and outside is formed so as to be opened to an almost orthogonal direction with respect to the taper surface 47. The annular recess 48 has the taper surface 47. A drill 52 is arranged on a shaft 51 which is almost orthogonal to the taper surface 47 and the drill is rotated, and the drill is moved forward along the shaft 51. Since the taper surface 47 is at an almost right angle to the shaft of the drill 52, processing accuracy is not deteriorated, and hole formation processing can be performed efficiently.SELECTED DRAWING: Figure 3
【課題】基体に斜めのリザーバ連通穴を設ける場合であっても、加工性を高めることができるような構造の車両用ブレーキ液圧制御装置を提供する。【解決手段】リザーバ穴45の内周面45aには、リザーバ穴45の底部45b側から開口45c側に向かって漸次拡径するテーパ面47を備えた環状凹部48が形成され、リザーバ穴45と外部とを連通するリザーバ連通穴49が、テーパ面47に対して略直交方向に開口するように形成されている。環状凹部48はテーパ面47を備えている。このテーパ面47に略直交する軸51にドリル52を配置し、回転させつつ、軸51に沿って前進させる。ドリル52の軸にテーパ面47が略直角であるため、加工精度が低下することなく、効率よく穴開け加工が行える。【選択図】図3
BRAKE LIQUID PRESSURE CONTROL DEVICE FOR VEHICLE
車両用ブレーキ液圧制御装置
2018-08-23
Patent
Electronic Resource
Japanese
IPC: | B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF |
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