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A mullion section member is disclosed for fitting between a pair of adjacent roller shutter doors in a door opening. The mullion section member is of a suitable length, has opposed channels at opposite sides each for slidably receiving the edge of the curtain of a respective roller shutter door. A p

A mullion section member is disclosed for fitting between a pair of adjacent roller shutter doors in a door opening. The mullion section member is of a suitable length, has opposed channels at opposite sides each for slidably receiving the edge of the curtain of a respective roller shutter door. A portion bridges the two channels, and behind said portion on the inside face of the mullion section member, there is provided flange means defining a recess between said flange means and said portion, in which a plate-like tongue member is slidably received to slide longitudinally of the length of the mullion section member. This permits the releasable fastening thereof to a similar mullion section member fastened relative to said door opening. The tongue member has a cut-out at one side which is hidden by said flange means. The recess associated with said flange means which hides said cut-out has a stop means therein which is so positioned along the length of said mullion section member that it is received in said cut-out and limits the extent by which said tongue member can be extended from one end of said mullion section member. This enables the tongue member 19 to locate in recesses of a said mullion section member fixed relative to said door opening. The stop means limits the extent by which said tongue member can be retracted inwardly into said mullion section member.

대표청구항 ▼

A mullion section member for fitting between a pair of adjacent roller shutter doors in a door opening, said mullion section member being of a suitable length and having opposed channels at opposite sides each for slidably receiving the edge of the curtain of a respective roller shutter door, a port

A mullion section member for fitting between a pair of adjacent roller shutter doors in a door opening, said mullion section member being of a suitable length and having opposed channels at opposite sides each for slidably receiving the edge of the curtain of a respective roller shutter door, a portion bridging the two channels, and behind said portion on the inside face of the mullion section member, flange means which extend the length of the mullion section and define a recess behind said portion in which a plate-like tongue member is slidably received to slide longitudinally of the length of the mullion section member, means fastened to said flange means slidably securing said tongue in said recess at one end of the mullion section member whereby the mullion section can be cut to the required length and said plate-like tongue member located in the correct operative position by said securing means then being secured at the required position on said flange means.