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A mechanical fastening system for securing a flexible sheet within a channel member via an insert member wherein the latter is made of flexible resilient material having a central longitudinal flex notch that serves to define two adjacent wing portions and permits a temporary elastic deformation of

A mechanical fastening system for securing a flexible sheet within a channel member via an insert member wherein the latter is made of flexible resilient material having a central longitudinal flex notch that serves to define two adjacent wing portions and permits a temporary elastic deformation of the insert member into an inverted V-shape for insertion of the insert member, together with the flexible sheet, into the channel member. A method for securing the flexible sheet within the channel member, via the resilient insert member, is also presented.

대표청구항 ▼

An attachment device for mechanically securing at least one flexible elastomeric sheet to the upper surface of a roof, said attachment device comprising a substantially rigid channel member and an insert member for retaining at least one said elastomeric sheet within said channel member and over sai

An attachment device for mechanically securing at least one flexible elastomeric sheet to the upper surface of a roof, said attachment device comprising a substantially rigid channel member and an insert member for retaining at least one said elastomeric sheet within said channel member and over said roof, said channel member having a top wall, bottom wall, a rectangular cross-section, and a continuous central longitudinal slot in said top wall opening into said channel member, opposed side walls which are substantially flat and which are arranged in parallel, said side walls being substantially perpendicular to said top and bottom walls, and means for receiving a fastening element to attach the channel member to said upper roof surface, said receiving means being positioned within the bottom wall of said channel member and said channel member having a width which is defined by said opposed side walls, said insert member comprising cans for maintaining said at least one flexible elastomeric sheet in said channel member, said insert member being formed from a resilient material and having two outer arcuate edges which define between them a lateral extent less than the width of said channel member when said insert member is unflexed, said insert member also comprising a central longitudinal flex notch in one surface which defines two adjacent insert member wing portions and which comprises means for facilitating the temporary elastic deformation of said insert member from a first position in which said insert member has a substantially unflexed natural shape into a second position in which said insert member has a generally inverted V-shape so that said edges can be inserted, together with a portion of said at least one elastomeric sheet, through said slot and into said channel member, by deforming said insert member along said flex notch and without deforming said top wall or said side walls of said channel member, said insert member and said longitudinal flex notch together comprising means for maintaining said at least one elastomeric sheet against an interior surface of said channel member when said insert member is substantially flattened into a third position in which the shape of said insert member is returned approximately to said natural shape, thereby permitting lateral and vertical shifting of said insert member and said at least one flexible sheet within said channel member.