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

A fixing device and fixing part technology, applied in the direction of threaded fasteners, locking fasteners, connecting components, etc., can solve the problems of increasing pre-assembly time, pre-assembly workload, and increasing component costs.

Active Publication Date: 2020-10-23
MAHLE INT GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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

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Embodiment Construction

[0024] Figure 1 to Figure 4 A cross-sectional view of a fastening device 1 according to the invention is shown. Said fixing device 1 is provided for fixing a component 2 to a counterpart—not shown here. The fixing device 1 thus comprises a ring bolt 3 and a fixing part 4 of the part 2 . In the fixing portion 4 is formed a through hole 5 in which the ring bolt 3 is arranged. The ring bolt 3 thus has a thread 6 (only shown here), a bolt head 7 and a circumferential collar 8 formed between them. Formed in the through hole 5 are inner radial stop projections 9 and inner radial clamping projections 10 . The clamping projection 10 is positioned diametrically opposite to the stop projection 9 and is axially offset from the stop projection 9 .

[0025] The fastening device 1 is preassembled in the method 11 according to the invention. according to figure 1 , first insert the ring bolt 3 in the insertion direction 12 into the through hole 5 of the fastening part 4 until the coll...

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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...

Claims

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Application Information

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IPC IPC(8): F16B5/02F16B39/282
CPCF16B5/0291F16B39/282F16B21/073F16B39/22F16B17/00F16B5/02
Inventor 托拜厄斯·鲍姆加特奥利弗·格费特-菲舍
Owner MAHLE INT GMBH
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