Headband structure for ear coverings
First Claim
1. A stirrup-shaped support for ear protectors, having two end parts which are joined through a central intermediate part, the intermediate part having in at least one location thereon an inner elongated section which is intended to lie close to the head of the wearer, and an outer elongated section lying externally of and spaced from the inner section;
- the inner and outer sections being so configured that when moving the two end parts of the support away from each other in the in-use position, the inner section is subjected to a tensile force at the same time as the outer section buckles in toward the inner section whereby the vertical distance between the opposing surfaces of the said inner and outer sections is decreased;
the buckling resistance of the outer section being such that the force required to move the support end parts away from one another is substantially constant within a predetermined range of distances between the end parts.
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Abstract
A stirrup-shaped support for supporting ear protectors for example has two end parts, between which there is located an intermediate part incorporating an inner section and an outer section. When the end parts are moved away from one another, the inner section is arranged to be subjected to a tensile force while the outer section is arranged to buckle, at the same time, towards the inner section. The rigidity of the outer section is such that the force required to move the end parts away from each other is substantially constant within a predetermined range of distances between the end parts.
38 Citations
7 Claims
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1. A stirrup-shaped support for ear protectors, having two end parts which are joined through a central intermediate part, the intermediate part having in at least one location thereon an inner elongated section which is intended to lie close to the head of the wearer, and an outer elongated section lying externally of and spaced from the inner section;
- the inner and outer sections being so configured that when moving the two end parts of the support away from each other in the in-use position, the inner section is subjected to a tensile force at the same time as the outer section buckles in toward the inner section whereby the vertical distance between the opposing surfaces of the said inner and outer sections is decreased;
the buckling resistance of the outer section being such that the force required to move the support end parts away from one another is substantially constant within a predetermined range of distances between the end parts. - View Dependent Claims (2, 3, 4, 5, 6, 7)
- the inner and outer sections being so configured that when moving the two end parts of the support away from each other in the in-use position, the inner section is subjected to a tensile force at the same time as the outer section buckles in toward the inner section whereby the vertical distance between the opposing surfaces of the said inner and outer sections is decreased;
Specification
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- Resources
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Current AssigneeBo G. Lonnstedt
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Original AssigneeBo G. Lonnstedt
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InventorsLonnstedt, Bo G.
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Primary Examiner(s)Schroeder, Werner H.
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Assistant Examiner(s)Falik, Andrew M.
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Application NumberUS06/751,225Time in Patent Office462 DaysField of Search248/626, 2/209, 24/545, 267/47, 267/160, 267/181, 267/164, 16/225, 181/129, 179/156 R, 179/156 A, 179/182 R, 179/182 A, 179/184, 381/25US Class Current2/209CPC Class CodesA61F 11/14 external, e.g. earcaps or e...
