An armrest assembly for a construction machine, comprising a first arm support 31 defining a support surface 35 for an operator's arm and a sensor for determining an angle of rotation of the first arm support 31 about a pivot 34, relative to the predetermined starting position. The sensor may be a contactless Hall Effect sensor mounted inside the pivot 34. The armrest assembly may comprise first 37 and second 38 control handles (e.g. buttons, joysticks, switches) for operating construction machine actuators. A control unit 40 may be connected to the sensor for partly or fully disabling functionalities of the first and/or second control handles if the angle of rotation of the first arm support 31 exceeds a first predetermined threshold. This may prevent inadvertent activation of parts of the construction machinery, thus preventing accidental damage to the construction or injuring a worker. Some functionalities of the first control handle 37 may be disabled and assigned or changed-over to the second control handle 38 if the angle of the first arm support exceeds a predetermined threshold. Preferentially, only some, e.g. hazardous functionalities are disabled. A pivotable seat comprising the armrest assembly and a method of operating construction machine are disclosed.
Armrest assembly
2018-10-31
Patent
Electronic Resource
English
IPC: | B60N SEATS SPECIALLY ADAPTED FOR VEHICLES , Sitze besonders für Fahrzeuge ausgebildet |
Support for armrest, support device, armrest assembly and assembling method of armrest assembly
European Patent Office | 2020
|European Patent Office | 2019
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