초록 ▼

A method and structure for a non-reopening extruded plastic profile fastener wherein complementary rib and groove type profiles are constructed and arranged to be pressed into interlocking relationship, and provided with restraining means against permanent interlocking so that the fastener can be ha

A method and structure for a non-reopening extruded plastic profile fastener wherein complementary rib and groove type profiles are constructed and arranged to be pressed into interlocking relationship, and provided with restraining means against permanent interlocking so that the fastener can be handled as an assembly with the profiles aligned for interlocking but not interlocked until the means are overridden and the profiles pressed into interlocked relation with one form of the overridable means being a frangible diaphragm across the groove to prevent movement of the rib and in another form a projecting strut which is yieldable with the application of a predetermined force or which is removable to permit the profiles to be moved to fully interlocked position.

대표청구항 ▼

A non-reopening extruded plastic profile fastener of substantial length, comprising: complementary male and female profiles extending along the length of the fastener and which are constructed and arranged to be pressed into interlocked relation; said male profile having a rib head of generally arro

A non-reopening extruded plastic profile fastener of substantial length, comprising: complementary male and female profiles extending along the length of the fastener and which are constructed and arranged to be pressed into interlocked relation; said male profile having a rib head of generally arrow shaped cross section providing interlocking shoulders, and said female profile having a complementary groove receiving said head and having opposed hooks for interlocking engaging said shoulders; said male profile movable toward the female profile into respective first and second positions, said profiles being in said position during stacking and handling to maintain the profiles in alignment; means extending along the length of the fastener for retaining the interlocked profiles substantially against separation after said head is fully received in said groove in said second position; and overridable means extending along the length of the fastener for initially permitting said head to rest against said hooks in said position and restraining said profiles against movement to said second position and interlocking and also restraining the profiles against lateral displacement holding them in alignment so that the fastener can be handled as an assembly with the profiles aligned for interlocking, but not interlocked until said overridable means are overridden and the profiles pressed from said first position into permanently interlocked relation in said second position.