US 12,458,097 B2
Adjustable headband for a protection helmet and protection helmet comprising one such headband
Antoine Coursimault, Grenoble (FR)
Assigned to ZEDEL, Crolles (FR)
Filed by ZEDEL, Crolles (FR)
Filed on Nov. 2, 2022, as Appl. No. 17/979,510.
Claims priority of application No. 2111638 (FR), filed on Nov. 2, 2021.
Prior Publication US 2023/0133162 A1, May 4, 2023
Int. Cl. A42B 3/14 (2006.01); A42B 3/08 (2006.01)
CPC A42B 3/145 (2013.01) [A42B 3/085 (2013.01)] 10 Claims
OG exemplary drawing
 
1. Headband for a protection helmet comprising:
a ring designed to surround a user's head;
at least a first strip forming at least a part of the ring;
a first adjustment device configured to adjust a circumference of the ring by moving one end of the first strip, the first adjustment device having a first body designed to be fixed to a crown of the protection helmet and comprising a main first threaded section with a first thread and a main first nut, the main first nut and the main first threaded section forming a helical link;
at least a main first attachment point, the end of the first strip being fixed to the main first attachment point, the main first attachment point being movable with respect to the first body to define the circumference of the ring, at least one of the main first nut and the main first threaded section moving along a longitudinal axis of the main first threaded section and supporting the main first attachment point to move the main first attachment point with respect to the first body; and
a first flexible transmission shaft having a first end connected to a first rotary actuator and a second end connected to the first adjustment device, the first flexible transmission shaft extending from the first body to connect the first rotary actuator, the main first nut moving within the first body,
wherein rotation of the first rotary actuator results in movement of the main first nut along the main first threaded section and in movement of the main first attachment point with respect to the first body; and
wherein a rotary torque applied on the first rotary actuator generates a rotary torque applied on the first adjustment device moving the main first attachment point and modifying the circumference of the ring.