Industrial designer Arnaud Lapierre came up with the ultimate ‘Do Not Disturb’ sign. His concept doorknob uses a pulley system so that the knob outside can pulled in by twisting the knob inside.

(Source: arnaud-lapierre.com)

Posted 10 months ago
Accumulated 892 notes
Filed under Arnaud Lapierre, Industrial Design, product design, Door, Knob, DESIGN, Do Not Disturb,
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    This is a great idea
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    Cannot disturb door knob
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