PROBLEM TO BE SOLVED: To provide a crossing alarm sound amount measurement auxiliary tool capable of easily and accurately measuring the sound amount of a crossing alarm.SOLUTION: A crossing alarm sound amount measurement auxiliary tool includes a main rod-like stick 1, a fitting holder 2 for fitting a sound amount measuring device V to the tip part of the main stick, and a distance matching rod 3 integrally provided at the tip part of the main stick. The distance matching rod 3 is provided to be parallel to the orientation direction of a sound generated from a speaker. The fitting holder 2 is provided at the tip of the main stick 1. The position of the fitting holder 2 is preferably adjusted so that the sound amount measuring device V can be disposed at a connection part of the main stick 1 with the distance matching rod 3.SELECTED DRAWING: Figure 1
【課題】踏切警報機の音量を簡易かつ正確に測定することが可能な踏切警報音量測定補助具を提供する。【解決手段】棒状の主棹1と、主棹の先端部に音量測定器Vを装着するための装着ホルダー2と、主棹の先端部に一体となって設けられる距離合わせ棒3とで構成されている踏切警報機音量測定補助具であり、距離合わせ棒3はスピーカーの音源から発せられる音の指向方向と平行に設ける。また、装着ホルダー2は主棹1の先端部に設けられる。音量測定器Vが主棹1と距離合わせ棒3との連結部に配置されるよう、装着ホルダー2の位置を調整することが望ましい。【選択図】図1
CROSSING ALARM SOUND AMOUNT MEASUREMENT AUXILIARY TOOL
踏切警報音量測定補助具
2016-10-06
Patent
Electronic Resource
Japanese
IPC: | B61L Leiten des Eisenbahnverkehrs , GUIDING RAILWAY TRAFFIC |
AUXILIARY SIGNAL MACHINE AND RAILROAD CROSSING ALARM AUXILIARY SYSTEM
European Patent Office | 2020
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