Linamar has filed a patent for a draper header that supports the return run of a draper belt used in harvesting agricultural crops. The header frame includes support legs and the tension draper track assembly is coupled between them, with an elongated draper track and a tensioning mechanism. The draper track may also be coated in a low-friction material to reduce wear. GlobalData’s report on Linamar gives a 360-degree view of the company including its patenting strategy. Buy the report here.

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According to GlobalData’s company profile on Linamar, battery pack swapping was a key innovation area identified from patents. Linamar's grant share as of September 2023 was 58%. Grant share is based on the ratio of number of grants to total number of patents.

Draper header for harvesting agricultural crops with tension draper track assembly

Source: United States Patent and Trademark Office (USPTO). Credit: Linamar Corp

A recently filed patent (Publication Number: US20230309453A1) describes a draper header for harvesting agricultural crops. The draper header includes a header frame with support legs and a draper belt for transporting harvested crops. A tension draper track assembly is coupled between the support legs to support the draper belt. The tensioning mechanism includes a rod and a fastening element for tensioning the draper track across the support legs. The tension can be adjusted by tightening or loosening the fastening element. Additionally, a spring or elastomeric component is included to dampen vibrations and reduce loading in the draper track during use.

The draper belt consists of a top run and a return run, with the tension draper track assembly supporting the return run. The elongated draper track has a cross-section with a planar horizontal upper portion and angled side portions. The first side of the draper track, which faces and engages the draper belt, is covered with a low-friction material to reduce friction and wear. The second end of the draper track is secured to one of the support legs using a coupling bracket, while the other support leg has a hole for receiving the rod. The tensioning mechanism also includes a pair of arms to limit rotation of the tension draper track assembly.

The patent also describes a draper header with multiple elongated draper tracks and a tensioning mechanism that connects them. The tensioning mechanism includes a fastener, a fastening element, and a spring or elastomeric component. The first ends of the elongated draper tracks have downwardly-extending tabs with corresponding holes for receiving the fastener. The tensioning mechanism allows for adjusting the tension of the draper tracks across the support legs.

The draper header further includes a cutter bar assembly for cutting the crops, a rear wall with an opening for transferring cut crops, and at least one crop pick-up reel for engaging the crops to be harvested. The draper belt includes cleats for aiding in transporting the harvested crops across the draper header.

Overall, this patent describes a draper header with an improved tension draper track assembly and tensioning mechanism, as well as features to reduce friction and wear on the draper belt. These innovations aim to enhance the efficiency and performance of agricultural crop harvesting.

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