초록 ▼

A hole (12) in a panel (10) of composite material is cut by a router or the like to dress it into a rounded hole (12′). A cavity is routed or otherwise formed in the panel (10) to extend across the dressed hole (12′) in the direction of maximum tension loads in the panel (10). An insert (16) is secu

A hole (12) in a panel (10) of composite material is cut by a router or the like to dress it into a rounded hole (12′). A cavity is routed or otherwise formed in the panel (10) to extend across the dressed hole (12′) in the direction of maximum tension loads in the panel (10). An insert (16) is secured in the cavity (18). The insert (16) and the cavity (18) have matching plan forms and each has a relatively narrow central portion and enlarged end portions (42, 44). The end portions (42, 44) of the insert interlock with end portions of the cavity (18) such that tension loads will be carried by the insert (16) from a region of the wall (10) on one side of the hole (12′) across the hole (12′) to a region of the wall (10) on the opposite side of the hole (12′).

대표청구항 ▼

For use in the repair of a tension carrying wall of composite material which has been damaged by the formation of a hole in the wall, said composite material comprising layers of structural fibers within a matrix; a load carrying insert having end portions which in use are situated on opposite sides

For use in the repair of a tension carrying wall of composite material which has been damaged by the formation of a hole in the wall, said composite material comprising layers of structural fibers within a matrix; a load carrying insert having end portions which in use are situated on opposite sides of the hole along a line which extends in the direction of tension loads in said wall, and a central portion which is substantially narrower than the end portions, said end portions having tension load transfering edges, so that a cavity conforming in size and shape to the insert can be formed in the wall, to span across the opening in the direction of tension loads in said wall, and the insert can be positioned in said cavity and secured in place, to interlock with edges of the cavity and transmit tension loads across the hole; an overlay patch of a load carrying metal having an inner surface, a recess in said inner surface corresponding in plan form to the insert, so that the overlay patch can be placed over the insert, with an outer portion of the insert situated within said recess, said overlay patch including a border portion generally encircling the recess, and fastener receiving openings in said border portion, spaced about the recess; and mechanical fastener means extendible through said opening, for securing the overlay patch to the wall.