Patent ID: 9738373
Date: 2017-08-22
CPC Classifications: B64C,F16B,Y10T

Claim:
1. A fish joint device configured to securely attach first and second structural elements of an aircraft to one another, the fish joint device comprising: a first fishplate disposed on either side of the first and second structural elements; a second fishplate disposed on a side of the first and second structural elements opposite the first fishplate, the second fishplate including a first attachment branch, a second attachment branch, and a third attachment branch; a set of through fastenings configured to attach the first and second fishplates to the first and second structural elements, the second fishplate being attached to the first and second structural elements by the first and second attachment branches, respectively, and to a third structural element by the third attachment branch; and at least one intermediate fish joint plate disposed between and in contact with one of the first or second fishplates and the first and second structural elements, respectively, wherein the intermediate fish joint plate at least partly covers and is attached to the first and second structural elements by at least some of the through fastenings, wherein the at least one intermediate fish joint plate has a flexural rigidity greater than the first or second fishplate located on a same side as the at least one intermediate fish joint plate, relative to the first and second structural elements, and wherein the first and second fishplates and the at least one intermediate fish joint plate are configured to transmit forces experienced by the first and second structural elements into the first and second fishplates and the at least one intermediate fish joint plate.