To realize a horn in which deformation of a diaphragm is suppressed.SOLUTION: A horn 1A includes a case 10 having a flange portion 12, a diaphragm 20 having a peripheral edge portion 23 fixed to the flange portion 12 and closing an opening 11 of the case 10, and an annular fixing ring 60 sandwiching the flange portion 12 and the peripheral edge portion 23 to fix to each other. The flange portion 12 and the peripheral edge portion 23 are laminated so that the upper surface of the flange portion and the lower surface of the peripheral edge portion face each other, and the fixing ring 60 includes a lower fixing portion 61 abutting on the lower surface of the flange portion, an upper fixing portion 62 abutting on the upper surface of the peripheral edge portion, and a connecting portion 63 for connecting the lower fixing portion 61 and the upper fixing portion 62. The upper fixing portion 62 is in surface contact with the upper surface of the peripheral edge portion, and an inner peripheral surface 62a of the upper fixing portion 62 is located radially more inside than a proximity point where a spacing between the upper surface of the flange portion and the lower surface of the peripheral edge portion is the narrowest, in the stacking direction of the flange portion 12 and the peripheral edge portion 23.SELECTED DRAWING: Figure 4
【課題】ダイヤフラムの変形が抑制されたホーンを実現する。【解決手段】ホーン1Aは、フランジ部12を備えるケース10と、フランジ部12に固定された周縁部23を備え、ケース10の開口部11を塞ぐダイヤフラム20と、フランジ部12及び周縁部23を挟み込んでこれらを互いに固定する環状の固定リング60と、を有する。フランジ部12と周縁部23とは、フランジ部上面と周縁部下面とが対向する向きで積層され、固定リング60は、フランジ部下面に当接された下側固定部61と、周縁部上面に当接された上側固定部62と、下側固定部61と上側固定部62とを連結する連結部63と、を含む。上側固定部62は周縁部上面と面接触し、上側固定部62の内周面62aは、フランジ部12と周縁部23の積層方向においてフランジ部上面と周縁部下面との間隔が最も狭くなる最近接点よりも径方向内側に位置する。【選択図】図4
HORN
ホーン
2021-04-30
Patent
Elektronische Ressource
Japanisch
IPC: | G10K Tonerzeugungsvorrichtungen , SOUND-PRODUCING DEVICES / B60Q ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL , Anordnung von Signal- oder Beleuchtungsvorrichtungen, deren Einbau oder Halterung oder deren Schaltkreise bei Fahrzeugen allgemein |