US 11,772,948 B2
Controller
Jonathan Kenred Bailey, Uttoxeter (GB)
Filed by J. C. Bamford Excavators Limited, Uttoxeter (GB)
Filed on Mar. 24, 2021, as Appl. No. 17/211,793.
Claims priority of application No. 2004691 (GB), filed on Mar. 31, 2020.
Prior Publication US 2021/0300744 A1, Sep. 30, 2021
Int. Cl. B66F 17/00 (2006.01); B66F 9/075 (2006.01); B66F 9/065 (2006.01)
CPC B66F 17/003 (2013.01) [B66F 9/065 (2013.01); B66F 9/0755 (2013.01); B66F 9/07559 (2013.01)] 25 Claims
OG exemplary drawing
 
1. A controller for use with a working machine comprising a machine body and a load handling apparatus coupled to the machine body and moveable by a lift actuator with respect to the machine body and moveable by a sway actuator about a sway axis with respect to a lateral reference orientation, wherein the controller is configured to receive:
a signal representative of the position of the load handling apparatus with respect to the machine body or a longitudinal reference orientation; and
a signal representative of a stability of the working machine,
and wherein the controller is further configured to determine a permissible movement range of the load handling apparatus about the sway axis and issue a signal for use by an element of the working machine including the sway actuator, which in response to the signal issued by the controller is configured to restrict or prevent movement of the load handling apparatus outside of the permissible movement range relative to the lateral reference orientation, the permissible movement range being dependent on the signal representative of the position of the load handling apparatus with respect to the machine body or longitudinal reference orientation and the signal representative of the stability of the machine.