Document Type and Number:
Japanese Patent JPS5531185
Kind Code:
Y2
Abstract:
A swinging door carries at its bottom end a pair of parallel spaced rollers which extend substantially the full width of the door and which, when the door is closed, are spring energized into rolling engagement with the bottom transverse member of a doorframe or sill for soundproofing the bottom of the door. A pair of horizontally elongated rubber strips, suspended from the door, rest on the respective rollers in order to obstruct the passage of sound above the rollers.
Application Number:
JP11357375U
Publication Date:
July 24, 1980
Filing Date:
August 18, 1975
Export Citation:
International Classes:
E06B5/20; E06B7/18; E06B7/22; (IPC1-7): E06B7/16
Previous Patent: レンズ駆動装置、カメラ及びカメラ付きモバイル端末装置
Next Patent: CONTINUOUS COLORING APPARATUS FOR STEEL HOOP
Next Patent: CONTINUOUS COLORING APPARATUS FOR STEEL HOOP