|
|
Concealed Hinge Puts The Lid On Tripping Hazards
 Custom
concealed hinges from Weber Knapp, Jamestown, N. Y. keep utility
cover plates flush with floors in convention centers. The
covers conceal a series of trenches containing Walker Systems, West
Hartford, Conn.
www.wiremold.com,
power cables and connectors. The approach eliminates the tripping
hazards of exposed hinges and electrical cables cluttering the floor.
And it cleans up unsightly electrical cables dangling from ceilings.
Weber Knapp opted for a four-bar-link hinge because the
flush-with-floor spec. ruled out straight-pivot designs. The hinges
move covers upward until they clear floor level, then swing them
away for easy access to trenches. Covers are up to 6 ft long and
weigh about 100 lbs. Offsetting the weight is a counterbalancing
spring and friction-control system. It lets one person open a cover
with minimal effort and holds the cover in position until closing.
— Lawrence Kren
Machine Design magazine
www.machinedesign.com
|
