To provide a resonator for a vehicle wheel that is able to minimize a design gap between the channel cross-sectional area of a communication hole and the channel cross-sectional area of a molded product, resulting from a variation in the wall thickness of a communication hole forming portion and that have an excellent damping effect of resonance sound.SOLUTION: A resonator 10 for a vehicle wheel, according to the present invention, has: a resonator body 13 mounted on the vehicle wheel in a tire air chamber between a vehicle wheel and a tire and forming a sub-air-chamber SC; and a communication hole 18 that allows communication between the sub-air-chamber SC and the tire air chamber; wherein the communication hole 18 has a first cross-sectional area portion Cs1 having a first channel cross-sectional area and a second cross-sectional area portion Cs2 having a second channel cross-sectional area, the first channel cross-sectional area being smaller than the second channel cross-sectional area.SELECTED DRAWING: Figure 5
【課題】本発明は、連通孔形成部における肉厚のバラツキによって生じる設計上の連通孔の流路断面積と成形品の流路断面積との間の隔たりを小さく抑えることができるとともに、共鳴音の減衰効果に優れた車両ホイール用レゾネータを提供する。【解決手段】本発明の車両ホイール用レゾネータ10は、車両ホイールとタイヤとの間にあるタイヤ空気室内の前記車両ホイールに取り付けられ、副気室SCを形成するレゾネータ本体13と、前記副気室SCと前記タイヤ空気室とを連通する連通孔18と、を有し、前記連通孔18は、第1の流路断面積をもつ第1断面積部Cs1と、第2の流路断面積をもつ第2断面積部Cs2と、を有し、前記第1の流路断面積は、前記第2の流路断面積よりも小さいことを特徴とする。【選択図】図5
RESONATOR FOR VEHICLE WHEEL AND VEHICLE WHEEL
車両ホイール用レゾネータ及び車両ホイール
2021-09-16
Patent
Electronic Resource
Japanese
IPC: | B60B VEHICLE WHEELS , Räder für Fahrzeuge |