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Load bearing floor or roof members

  • US 4,730,428 A
  • Filed: 09/08/1986
  • Issued: 03/15/1988
  • Est. Priority Date: 11/05/1982
  • Status: Expired due to Term
First Claim
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1. A load bearing floor or roof system comprising (a) two or more plank members each plank member including a first major face wall, and a second major face wall spaced from the first major face wall, and opposed side walls, the plank member being a rigid, hollow, unitary pultruded structure of fibre reinforced plastics material, with the major face walls and the opposed side walls being formed in a single pultrusion operation, each opposed side wall having a flat outer surface disposed substantially at right angles to the plane in which at least one of the major face walls lies, and each of the opposed side walls having formed therein an integral undercut channel defined by a slot in the respective outer surface of the side wall and an enlarged inner cavity, and (b) one or more connector members for connecting together adjacent planks by interengagement with the opposed undercut channels of the respective planks, the or each connector member including first transverse wall, a second transverse wall spaced from and parallel to the first transverse wall, a first side wall joining the first and second transverse walls, and a second side wall joining the first and second transverse walls and spaced from and parallel to the first side wall, the first transverse wall including an opening to provide an undercut channel to receive supporting or mounting means, a connector portion projecting laterally from each side wall, the two connector portions projecting in opposite directions and each connector portion being head and neck shaped in cross-section, the undercut channels of the adjacent planks slidably receiving the opposed connector portions of a connector whereby the planks are restrained against lateral separation in the plane of the planks and transverse thereto and may be supported by supporting or mounting means being received in the channel in the first transverse wall of the connector.

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