US 12,077,418 B2
Work platform with protection against sustained involuntary operation
Ji Hong Hao, Greencastle, PA (US); Ignacy Puszkiewicz, Hagerstown, MD (US); Jacob W. Snyder, Hastings, PA (US); and Alan Gillman, Whitmore Lake, MI (US)
Assigned to JLG Industries, Inc., McConnellsburg, PA (US)
Filed by JLG INDUSTRIES, INC., McConnellsburg, PA (US)
Filed on Mar. 15, 2019, as Appl. No. 16/354,257.
Application 16/354,257 is a continuation of application No. 14/950,845, filed on Nov. 24, 2015, granted, now 10,358,331.
Application 14/950,845 is a continuation in part of application No. 13/885,720, granted, now 9,586,799, issued on Mar. 7, 2017, previously published as PCT/US2011/066122, filed on Dec. 20, 2011.
Claims priority of provisional application 61/435,558, filed on Jan. 24, 2011.
Claims priority of provisional application 61/424,888, filed on Dec. 20, 2010.
Prior Publication US 2019/0210855 A1, Jul. 11, 2019
This patent is subject to a terminal disclaimer.
Int. Cl. B66F 17/00 (2006.01); B66F 11/04 (2006.01)
CPC B66F 17/006 (2013.01) [B66F 11/044 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A work platform for a personnel lift, the work platform comprising:
a floor structure;
a safety rail coupled with the floor structure and defining a personnel work area;
a control panel area including a control panel;
a barrier having at least one end that is detachably secured adjacent the control panel area; and
a switch connectable to a controller of the personnel lift that controls operation of the personnel lift, wherein the switch is activated by a predetermined trip force to the barrier, and wherein when the switch is activated by the predetermined trip force to the barrier, the switch outputs a trip indication communicable to the controller of the personnel lift, wherein the at least one end of the barrier is detachably secured adjacent the control panel area such that upon an application of the predetermined trip force to the barrier, the barrier is detached, wherein the controller is programmed to initiate a reversal function and automatically reverse a last operation when the switch is tripped.