Abstract: A hair-cutting unit for a shaving device, the hair-cutting unit including a hair-cutting element and a telescopic drive-shaft. The drive-shaft comprises a first shaft-segment, which is in telescopic engagement with a co-rotating second shaft-segment, which itself is in telescopic engagement with a co-rotating third shaft-segment. A spring presses the first telescopic shaft-segment and the third telescopic shaft-segment away from one another. In an embodiment, the first and second telescopic shaft-segments are in mutual tillable engagement, and/or the second and third telescopic shaft-segments are in mutual tillable engagement.

Abstract: A hair cutting appliance comprises an external cutting member and an internal cutting member arranged rotatable to the external cutting member for cutting hair.

Abstract: A hair cutting appliance comprises an external cutting member and an internal cutting member arranged rotatable to the external cutting member for cutting hair.

Abstract: The invention relates to a hair-cutting unit for a shaving device. The hair-cutting unit comprises a hair-cutting element and a telescopic drive-shaft mechanism (3). The drive-shaft mechanism comprises a first shaft-segment (21), which is in telescopic engagement with a co-rotating second shaft-segment (22), which is in telescopic engagement with a co-rotating third shaft-segment (23). A spring mechanism presses the first 5 telescopic shaft-segment and the third telescopic shaft-segment away from one another. In an embodiment, the first and second telescopic shaft-segments (21, 22) are in mutual tillable engagement and/or the second and third telescopic shaft-segments (22, 23) are in mutual tillable engagement. The invention provides improved skin-contour-following capacity of a shaving device, while at the same time the required installation space for the drive-shaft 10 mechanism remains restricted.

Abstract: The invention relates to a blow-out grid, the peripheral form and dimensions of which correspond to an elongate form of a blow-out opening of an air curtain device. This blow-out grid comprises slats which extend in use longitudinally and transversely relative to the lengthwise direction of the blow-out grid and which guide in a desired uniform direction respective transversely and longitudinally diverging components of an airflow passing therethrough. The invention further relates to an air curtain device, comprising: a housing; means generating an airflow in the housing; an elongate blow-out opening with an inner peripheral form; a channel between the means generating an airflow and the blow-out opening; and a blow-out grid arranged in the blow-out opening and having a peripheral form and dimensions corresponding to the elongate form of the blow-out opening, and wherein the blow-out grid is one from the group comprising blow-out grids.