Fastening device, component comprising fastening device, and method for pre-assembling fastening device

Abstract

The invention relates to a fastening device (1) for securing a component to a counter piece (2). The fastening device (1) includes a collar screw (3) having a thread (6), a screw head (7), and a circumferential collar (8) formed therebetween. The fastening device (1) also includes a fastening section (4) of the counter piece (2) in which a through hole is formed, said through hole comprising an inner radial stop projection. The collar screw may be inserted into the through hole in the insertion direction, and, in a pre-assembly state, the collar may be axially supported on the stop projectionin a pull-out direction. According to the invention, a clamping projection is formed in the through hole, located inside, radially opposite the stop projection, and axially offset from the stop projection in the insertion direction. In the pre-assembly state, the collar may be axially supported on the clamping projection in the insertion direction, and the collar screw may be clamped between the stop projection and the clamping projection. The invention also relates to a component comprising a fastening device, and a method for pre-assembling a fastening device.

Description

technical field [0001] The invention relates to a fastening device for fastening a component to a counterpart according to the preamble of claim 1 . The invention also relates to a method for pre-assembling a fixing device. Background technique [0002] Fastening arrangements are known which use ring bolts to fasten a component to a counterpart. Components including ring bolts and counterparts are often manufactured and shipped separately. As described, for example, in DE 10 2015 220 370 A1, the eyebolt can be preassembled in the component in a loss-proof manner. Here, the ring bolt is inserted into the through-hole of the component such that the collar of the ring bolt and the stop projection axially engage each other in the through-hole. In order to be able to guide the collar of the eyebolt past the locking projection, a spring element is arranged in the through hole. The elastic element deforms when guiding the collar past the stop projection and prevents an undesire...

AI Technical Summary

Problems solved by technology

The downside is that when the collar bolt is tilted, it is still easy to pull it out of the through hole

Also, the spring elements in the through holes add to the cost of the part

In addition, the elastic element must be pre-positioned in the through hole, which also increases the pre-assembly time and pre-assembly effort

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