Fastenings for roof and wall sheeting

Claim 2

Means for fastening ribbed sheeting on a support member comprising an anchor strap for mounting on the support member, several fastening members mounted pivotally on the anchor strap in linearly spaced relationship, and for each of the fastening members a spring mounted on the anchor strap in operable rotative engagement with the associated fastening member, each of the fastening members having at least one cam shaped part for engagement by the sheeting and operable under axial pressure applied to the cam shaped part by the sheeting to turn the fastening member against the pressurE of the spring from an operative position to an inoperative position whereat the sheeting may be moved into its mounted position, the spring being operable to rotatively move the fastening member to its operative position in holding engagement with the ribbed portion of the sheeting.

Claim 3

Means for fastening ribbed sheeting on a support member as claimed in claim 1 wherein said cam shaped part consists of a ramp which is so inclined that axial pressure applied thereto by the underside of the sheeting will induce a rotational movement about the pivot of the fastening member, and said ramp including an outer end portion shaped to engage with an internal ledge of the ribbed sheeting so as to hold the sheeting against the support.

Claim 4

Means for fastening ribbed sheeting on a support member as claimed in claim 1 wherein each spring consists of a base plate to fit between the anchor strap and the associated fastening member and an integral spring arm adapted to bear against the fastening member and bias it into operative position. 4. Means for fastening ribbed sheeting on a support member as claimed in claim 1 wherein the anchor strap has at the location of each fastening member a pair of tongues operative to hold the spring against rotation in one direction and operative to limit the pivotal movement of the fastening member in the opposite direction.

Claim 5

Means for fastening corrugated ribbed sheeting to a support member comprising anchor means for mounting on the support member said anchor means including at least one hollow pintle extending upwardly therefrom in a direction opposite said support member, a fastening member rotatably mounted on said pintle and movable within limits defined by protuberance means on said anchor member, spring means mounted on said pintle and adapted to cooperate with said protuberance means and said fastening member to positively locate, in spring relationship, said fastening means relative to said anchor member, each said fastening member including a base and a pair of upstanding walls along opposite edges of said base, each of said walls including shoulders extending laterally adjacent their free extremities, at least one integral wing member extending outwardly from an end of said base of the fastening member and thence bent reversely toward and in engagement with the shoulders on said walls to form a ramp shaped cam for engagement by the sheeting when axially telescoped with one of the corrugations of the sheeting to rotatably turn the fastening member against the pressure of the spring from an operative position to an inoperative position whereby the sheeting may be moved into its mounted position adjacent said support member, the spring being capable of rotatively moving the fastener back to its operative position whereby an outer end of said arm is brought into holding engagement with the ribbed portion of the sheeting.

Claim 6

Means for fastening corrugated ribbed sheeting to a support member comprising anchor means for mounting on the support member said anchor means including at least one hollow pintle extending upwardly therefrom in a direction opposite said support member, a fastening member rotatably mounted on said pintle and movable within limits defined by protuberance means on said anchor member, spring means mounted on said pintle and adapted to cooperate with said protuberance means and said fastening member to positively locate, in spring relationship, said fastening means relative to said anchor member, each said fastening member including a base and a pair of upstanding walls along opposite edges of said base, each of said walls including shoulders extending laterally adjacent their free extremities, at least one integral wing member extending outwardly from an end of said base of the fastening member and thence bent reversely toward and in engagement with the shoulders on said walls to form a ramp shaped cam for engagement by the sheeting when axially telescoped with one of the corrugations of the sheeting to rotatably turn the fastening member against the pressure of the spring from an operative position to an inoperative position whereby the sheeting may be moved into its mounted position adjacent said support member, the spring being capable of rotatively moving the fastener back to its operative position whereby an outer end of said arm is brought into holding engagement with the ribbed portion of the sheeting.