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Fixed screw nut connection for robotic mowers

A technology of automatic mowing and screw, applied in the direction of harvester, application, cutter, etc., to achieve the effect of improving the ability of cutting height

Active Publication Date: 2018-06-22
HUSQVARNA AB
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most lawn mowers are repeatedly exposed to the same operating conditions during their service life

Method used

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  • Fixed screw nut connection for robotic mowers
  • Fixed screw nut connection for robotic mowers
  • Fixed screw nut connection for robotic mowers

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] Some example embodiments will now be described more fully hereinafter with reference to the accompanying drawings, in which some, but not all example embodiments are shown. Indeed, the examples described and illustrated herein should not be construed as limiting the scope, applicability, and configuration of the present disclosure. Rather, these example embodiments are provided so that this disclosure will satisfy applicable legal requirements. The same reference numerals denote the same elements throughout. Furthermore, as used herein, the term "or" is interpreted as a logical operator whose result is true whenever one or more of its operands are true. As used herein, operably coupled should be understood to refer to a direct or indirect connection, in either case, operably coupled such that elements that are operably connected to each other are functionally interconnected.

[0021] Autonomous vehicles (such as robotic lawnmowers, automatic irrigation devices, etc.) ...

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PUM

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Abstract

A robotic mower includes a chassis, a cutting motor driving at least one cutting blade, and a height adjustment assembly. The cutting motor is mounted on a motor bracket. The motor bracket provides structural support for the cutting motor at an adjustable level relative to the chassis. The height adjustment assembly includes a biasing element, a screw engagement nut, and a height adjustment screw. The screw engagement nut is operably coupled to the motor bracket to enable adjustment of a height of the motor bracket via rotation of the height adjustment screw. The height adjustment screw rotates to translate the screw engagement nut vertically along the height adjustment screw based on an engagement of teeth on the screw engagement nut with threads of the height adjustment screw. The teeth of the screw engagement nut are urged toward the threads of the height adjustment screw via the biasing element.

Description

technical field [0001] The exemplary embodiments relate generally to robotic lawn mowers, and more particularly, to a robotic lawn mower with an adjustable cutting height. Background technique [0002] Yard care tasks are often performed using different tools and / or machines configured to perform the corresponding specific task. Certain tasks, such as mowing grass, are often performed by lawnmowers. The lawnmower itself can come in a variety of different configurations to support the needs and budget of the consumer. Walk-behind lawn mowers are generally compact, have relatively small engines and are relatively expensive. Also, on the other hand, riding lawn mowers, such as lawn tractors, can be very large. In recent years, autonomous lawn mowers and / or remote-controlled lawn mowers have also become options considered by consumers. [0003] Lawn mowers are generally capable of traveling over flat or uneven terrain to perform yard care activities related to mowing. Howev...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01D34/74
CPCA01D34/74A01D34/008F16H25/24Y10T74/18728
Inventor 马丁·埃伦松
Owner HUSQVARNA AB