Patent ID: 9481445
Filing Date: 2016-11-01
CPC Classification: B64C,Y10T

Claim Text:
1. A connection device for connecting first means of an airplane to second means of the airplane, the first means and the second means are provided with connection regions, which lengthwise extend in a first direction and are connected with each other, respectively, wherein, a plurality of finger-like grooves, which are parallel with each other and extend respectively in a second direction inclined relative to the first direction in which the connection region extends, are provided respectively on a connection face of the connection region of the first means and a connection face of the connection region of the second means, wherein the plurality of finger-like grooves are formed in such a manner that a finger-like protrusion is formed between adjacent finger-like grooves, when fitted, the finger-like protrusions of one of the first means and the second means are inserted into the corresponding finger-like grooves of the other one of the first means and the second means, thereby the first means and the second means are fixedly connected, wherein the first means is a main member, and the second means is an accessory member which is designed into at least two segments in a lengthwise direction of the accessory member, wherein the angle between the second direction and the first direction alternately changed in an acute angle α and an obtuse angle β in each segment, and the at least two segments of the accessory member are fixed together to form a single piece, and wherein the accessory member is designed into two segments, wherein the second direction, in which the finger grooves of two portions, which are respectively corresponding to the two segments of the accessory member, on the main member extends, is toward an engaging face between the two segments of the accessory member, such that the two segments of the accessory member are inserted into the main member, correspondingly, when fitted.