| 摘要 |
According to the present invention, an overturn preventing ringer holder having a coil-type remaining-amount measuring unit includes: a support that has an open upper end portion to form an insertion groove and includes an elastic member installed on a lower end portion of the insertion groove; a holder that has a lower end portion inserted into the insertion groove and allows a ringer to be hung thereon; the remaining-amount measuring part that includes a magnetic force member, installed on an outer circumferential side of a lower end portion of the holder, and a coil member, which is installed on an outer circumferential side of the insertion groove and measures change of a magnetic filed according to locations of the magnetic member which is changed by the remaining amount of the ringer; and an overturn preventing part that includes a hinge member, hinged with a lower end portion of the support, wheel members installed on a lower end portion of the hinge member, and a pressing member installed on an outer circumferential side of the hinge member to press the wheel members in the vertical direction. |
