Automatic door-closing device
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
N/A
Issued Date -
Aug 23, 2001
app pub date -
Feb 9, 2001
filing date -
Feb 9, 2000
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
The present invention, realized for the purpose of providing an automatic door-closing device capable of opening a door and also capable of performing door-closing actions properly and automatically, depending on the weight of the door, etc., without being exposed to outside nor spoiling the appearance of the door, comprises an automatic door-closing mechanism buried in an open upper frame, a guide rail mounted at the top of the door, and a link which moves along the guide rail while turning in pursuance of the opening/closing of the door, serially disposing, in the automatic door-closing mechanism, a power-converting mechanism, connected to one end of the link, for converting the rotating motion of the link due to the opening/closing of the door into a linear motion, an urging mechanism for urging in the door-closing direction, and a buffer mechanism for adjusting the closing speed of the door by controlling the flow rate of the fluid in one direction.
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Family
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