| 摘要 |
PURPOSE: A noise preventing door checker prevents noise from being generated when opening and closing a door of an automobile. CONSTITUTION: A grease charger(17) is formed in a door checker arm(20). Multiple grease discharging holes(15) are formed on the side wall of the grease charger(17). A push rod(12) has a push rod mounting groove(16) to be communicated with the grease charger(17) and is elastically supported by a spring(13). An air inhaling hole(14) is formed on one side of the push rod mounting groove(16). An entrance of the air inhaling hole(14) is formed and positioned to be blocked first when the push rod(12) is pushed by a roller(10). A noise preventing door checker supplies grease automatically and continuously without any other separate injection of grease when a door is completely opened.
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