Marsh & McLennan. has been granted a patent for a load-bearing assembly featuring adjustable clamping-force sensors. This technology enables precise measurement and adjustment of clamping forces in lift truck load grasping assemblies, enhancing load handling efficiency and safety through real-time force evaluation. GlobalData’s report on Marsh & McLennan 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 Marsh & McLennan, was a key innovation area identified from patents. Marsh & McLennan's grant share as of June 2024 was 57%. Grant share is based on the ratio of number of grants to total number of patents.
Load-bearing assembly with adjustable clamping-force sensors
The patent US12024412B2 outlines methods for adjusting a load grasping assembly in lift trucks, focusing on enhancing the efficiency and accuracy of load handling. The first claim describes a method that involves a load grasping assembly equipped with a clamp arm and a clamp pad, which is supported by a pivoting clamp pad support assembly. The process begins with the provision of a test load body, which is then grasped by the assembly. The method utilizes at least four pairs of clamp shear strain gauges to measure the clamp force and two pairs of vertical shear strain gauges to assess vertical load. Signals from these gauges are analyzed to determine the grasping force and the center of gravity of the load, allowing for adjustments to the clamping force applied by the clamp arm.
The second claim expands on this concept by incorporating multiple pivoting clamp pad support assemblies, each equipped with respective force sensors and vertical load sensors. Similar to the first method, it begins with grasping a test load body and obtaining signals from the sensors to determine the grasping forces exerted by each support assembly. The method further involves analyzing the distribution of these forces and comparing them to a predetermined desired distribution. Based on this comparison, adjustments can be made to the radial distance between the pivot axis of one of the support assemblies and the clamp pad, thereby optimizing the load grasping performance of the lift truck. This multi-sensor approach aims to enhance the precision of load handling operations, ensuring better stability and control during lifting tasks.
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