	US 12,064,000 B2
	Safety helmet with mechanical coding for plug connections between the inner lining and the bearing structure
Katja Franke, Lübeck (DE); and Jasser Rahmatyan, Lübeck (DE)
Assigned to DRÄGER SAFETY AG & CO. KGAA, Lübeck (DE)
Filed by Dräger Safety AG & Co. KGaA, Lübeck (DE)
Filed on Apr. 29, 2021, as Appl. No. 17/244,205.
Claims priority of application No. 10 2020 002 614.1 (DE), filed on Apr. 30, 2020.
Prior Publication US 2021/0337911 A1, Nov. 4, 2021
Int. Cl. A42B 3/14 (2006.01)

CPC A42B 3/145 (2013.01)

16 Claims

1. A safety helmet comprising:

an arched helmet shell;

an inner lining, the safety helmet being configured such that the inner lining comes into contact with the head of a user of the safety helmet;

a bearing structure attached on an inside to the helmet shell and configured to carry the inner lining; and

at least two connection units, wherein:

the safety helmet has at least two different connection types;

each of the connection units is configured to connect the inner lining detachably to the bearing structure;

each connection unit comprises:

a bearing structure-side component forming a part of the bearing structure and belonging to exactly one connection type of the at least two different connection types; and

an inner lining-side component forming a part of the inner lining and belonging to exactly one connection type of the at least two different connection types;

the bearing structure-side component is connectable to the inner lining-side component to establish a detachable connection between the bearing structure and the inner lining if the bearing structure-side component belongs to the same connection type as the inner lining-side component; and

the bearing structure-side component cannot be connected to the inner lining-side component or the two components are incapable of establishing a connection between the bearing structure and the inner lining if the bearing structure-side component and the inner lining-side component belong to different connection types.