Browse Prior Art Database

Publication Date: 2017-Apr-06
Document File: 1 page(s) / 185K

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The Prior Art Database

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Trailing blade bushing typically requires bar pin attachment to body or requires nut and bolt attachment to

attach clevis to the trailing blade bushing and then the clevis gets attached to the body. Both of these

options have a large required joint width that is either equal to the bar pin length or nut and bolt stack up

length. Typically packaging space is limited due to the battery or fuel tank and requires joint width

reduction to maximize the battery and fuel tank volume.

The proposal is an interference pin attachment concept that would help reduce the width of the joint to

improve package tradeoffs. The interference pin concept relies on interference instead of the friction in

the joint from the force of the threaded fastener. For example, the joint width can be reduced from 136mm

to 68mm compared to bar pin option and 107mm to 69mm compared to nut/bolt y and clevis attachment

option. Example of bar pin style trailing blade bushing is shown in figure 1, clevis with nut/bolt attachment

is shown in figure 2, interference pin attachment is shown in figure 3, and a section through the proposed

interference pin joint concept is shown in figure 4.

Figure 1 Figure 2

Figure 3 Figure 4

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