E - Fixed Constructions – 04 – G
Patent
E - Fixed Constructions
04
G
E04G 7/00 (2006.01) E04G 5/00 (2006.01) E04G 7/30 (2006.01) E04G 7/32 (2006.01)
Patent
CA 2086984
ABSTRACT OF THE DISCLOSURE A releasable joint between an upright and a transverse brace in a scaffold includes a horizontal aluminum flange extending radially from the upright. The flange has an opening and a vertical wedge-contacting surface within the opening. An aluminum connector attached to the brace has a horizontal mouth that receives the flange. A passage formed in the connector in a generally vertical orientation registers with the flange opening. The connector has internal upper and lower wedge-seating surfaces on a radially inner side of the passage. These surfaces are parallel and inclined at a predetermined angle relative to vertical. A steel wedge is inserted through the connector passage and flange opening and forces the connector radially inwardly into contact with a stop fixed to the upright. The wedge has a radially outer side edge which defines a vertical contact surface mated with the vertical wedge-seating surface of the flange. The wedge has a radially inner side edge defining upper and lower contact surfaces that are parallel and inclined at the predetermined angle The sets of mated contact and wedge-seating surfaces have complementary uniform horizontal cross-sections to allow relative sliding. Wear between steel and aluminum surfaces is reduced. - 11 -
Lubinski Ronald
Mccarthy Tetrault Llp
LandOfFree
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