Helmet with adjustable safety strap
AssigneeHeinz Egolf
InventorsHeinz Egolf, Werner Tress, Dieter Widmer
Life of this patent
Estimating the term…
Abstract
A helmet with an adjustable safety strap. The length of the strap used for securing the helmet can be adjusted by the wearer continuously, or progressively in stages of 1.5 mm, and fixed or released in any of the positions with only one hand, by way of a turn-lock fastener. The turn-lock fastener is rigidly incorporated in the helmet material and has cords which are guided from its two opposite sides along an inner side of the helmet to deflecting rollers, or deflecting points, on the helmet material, and then further guided therefrom along the strap to be tightened. The safety strap can be worn around the nape of the neck, or include a chin piece, among other manners of construction.
Claims17
A helmet with an adjustable strap, comprising, said helmet having said strap, the length of said strap used for securing said helmet on a user's head being continuously adjustable, or in steps of 1.5 mm, at the most, and fixed or released in any position via a turn-lock fastener operable with one hand, wherein said strap is a strap running along an inside of said helmet, with a tensioning of said strap being able to be increased and decreased for tightening and loosening, respectively, said helmet on the user's head by said turn-lock fastener, which is rigidly incorporated in material comprising said helmet, and wherein cords of said turn-lock fastener are guided from its two opposite sides along an inner side of said helmet to deflecting rollers, or deflecting points, on said material comprising said helmet, and being further guided therefrom along said strap to be tightened.
A helmet with an adjustable strap, comprising, said helmet having said strap, the length of said strap used for securing said helmet on a user's head being continuously adjustable, or in steps of 1.5 mm, at the most, and fixed or released in any position via a turn-lock fastener operable with one hand, wherein said strap is a strap running along an inside of said helmet, with a tensioning of said strap being able to be increased and decreased for tightening and loosening, respectively, said helmet on the user's head by said turn-lock fastener, which is rigidly incorporated in material comprising said helmet, wherein said strap is a strap which forms a T-bar of a T-shaped tongue, which is secured upside down on the inside of the helmet with a bottom end of the T-bar, with cords of said turn-lock fastener being guided along said strap.
A helmet with an adjustable strap, comprising, said helmet having said strap, the length of said strap used for securing said helmet on a user's head being continuously adjustable, or in steps of 1.5 mm, at the most, and fixed or released in any position via a turn-lock fastener operable with one hand, wherein said strap is a strap running along an inside of said helmet, with a tensioning of said strap being able to be increased and decreased for tightening and loosening, respectively, said helmet on the user's head by said turn-lock fastener, which is rigidly incorporated in material comprising said helmet, wherein said strap is attached to said turn-lock fastener via a cam which is guidable in the tightening direction of said strap and engages in a curved groove contrived in an underneath dial which is rotatably mounted on a base via a central axis, so that when said dial is rotated, an edge of the curved groove acts as a cam disc and therefore displaces said cams in or against the direction for tightening said strap, depending on the direction of rotation.
A helmet with an adjustable strap, comprising, said helmet having said strap, the length of said strap used for securing said helmet on a user's head being continuously adjustable, or in steps of 1.5 mm, at the most, and fixed or released in any position via a turn-lock fastener operable with one hand, wherein said strap is a strap running along an inside of said helmet, with a tensioning of said strap being able to be increased and decreased for tightening and loosening, respectively, said helmet on the user's head by said turn-lock fastener, which is rigidly incorporated in material comprising said helmet, wherein said turn-lock fastener has a cord wheel, the top of which forms a Geneva cross with radial guide grooves disposed around its periphery, and a drive wheel with two eccentrically disposed drive pins, which engage in the radial guide grooves on the Geneva cross, thereby forming a Geneva mechanism, as well as a top cover, which is provided with a locking pawl for blocking said turn-lock fastener in different tightened positions.
Dependencies are inferred from the claim text.