Abstract: The invention relates to a pair of spectacles, in particular sports spectacles, comprising a spectacle frame, at least one spectacle lens which is detachably locked by the spectacle frame and a locking means for securing the spectacle lens to the spectacle frame. The locking means is displaceable relative of the spectacle frame between a spectacle lens locking position and a spectacle lens unlocking position, wherein the locking means interacts with the spectacle lens in the spectacle lens locking position for the spectacle lens to be secured to the spectacle frame. In the spectacle lens unlocking position, the locking means unlocks the spectacle lens in such a way that the spectacle lens is removable from the spectacle frame. The gist of the invention is a locking counter-means interacting with the locking means, the locking counter means being arranged on the spectacle frame.

Abstract: The invention relates to a pair of spectacles, in particular sports spectacles, comprising a spectacle frame, at least one spectacle lens which is detachably locked by the spectacle frame and a locking means for securing the spectacle lens to the spectacle frame. The locking means is displaceable relative of the spectacle frame between a spectacle lens locking position and a spectacle lens unlocking position, wherein the locking means interacts with the spectacle lens in the spectacle lens locking position for the spectacle lens to be secured to the spectacle frame. In the spectacle lens unlocking position, the locking means unlocks the spectacle lens in such a way that the spectacle lens is removable from the spectacle frame. The gist of the invention is a locking counter-means interacting with the locking means, the locking counter means being arranged on the spectacle frame.

Abstract: In a protective helmet, especially a bicycle helmet, having a head band made of plastic, which is fastened to the helmet calotte and which is height adjustable for adapting to the head anatomy of the wearer, provision is made that the head band is supported on both sides of the helmet calotte so as to be pivotable and that extensions are provided that extend at both end regions of the head band approximately perpendicular to the same toward the top and interior of the helmet, which engage into holding elements that are fixed in the helmet calotte, the extensions being adjustable lengthwise relative to the holding elements.

Abstract: In a sight piece, in particular for skiing goggles or the like, comprising a distal and a proximal sheet united by a flexible seal and spacer element that encircles along the edge, it is provided that the sheets are glued together by means of the seal and spacer element without the use of additional adhesive.

Abstract: In a visor for a helmet, particularly a motorcycle helmet, comprising an outer plastic pane and an inner plastic pane which are held spaced apart relative to one another through a sealing edge under inclusion of an air cushion, provision is made, to attain a simple producibility while avoiding frame parts, for the outer pane to be extruded of plastic and to have edge regions that project toward the inside, into which an inner pane that is punched from a flat, plate-shaped plastic material can be inserted in a form-fitting manner.