Welding helmet
Assignee3M Innovative Properties Company
InventorsMats U. Sernfält, Björn Daniels
Life of this patent
Estimating the term…
Abstract
A welding helmet (1) has a protective shield (2) and a first swivel mechanism (10) that pivotally connects the protective shield with a head suspension system (6) for swiveling about a swivel axis. The first swivel mechanism enables the protective shield and the head suspension system to be swiveled between a lowered position, in which the protective shield covers a wearer's face, and an upraised position, in which the protective shield uncovers the wearer's face. The first swivel mechanism (10) has a recess (16a) and a retainer (17a) for engaging with the recess. The retainer and the recess are arranged to engage with each other in the upraised position, and to remain disengaged in the lowered position and between the lowered position and the upraised position.
Claims15
A welding helmet configured to be worn by a wearer, comprising:
- a protective shield configured to fully cover the wearer's face when placed in a first position and fully uncover the wearer's face when placed in a second position;
- a head suspension system coupled to the protective shield and configured to support the protective shield on the wearer's head;
- and
- a first swivel mechanism fixed to the head suspension system, pivotally connecting the protective shield with the head suspension system, and configured to swivel the protective shield relative to the head suspension system about a swivel axis from the first position to the second position, wherein the first swivel mechanism comprises one or more recesses and one or more retainers, wherein each of the one or more recesses is configured to engage a retainer of the one or more retainers, wherein in the second position at least one retainer is engaged in at least one recess, wherein in the first position none of the one or more retainers are engaged in any of the one or more recesses, and wherein all of the one or more retainers remain disengaged from all of the one or more recesses when the protective shield is swiveled from the first position to the second position wherein the first swivel mechanism further includes an interface extension arm to attach the first swivel mechanism to the head suspension system.
Dependencies are inferred from the claim text.