27results about "Corrugation articles" patented technology

The invention relates to a sealing or edge protection profile (1), in particular for sealing a vehicle door against a door opening of a body, comprising at least a first section (2) with a first stiffness and at least a second section (3) with a second stiffness lower than the first. To enable simple manufacturing and a particularly dimensionally accurate outer contour, the sections (2; 3) are formed from the same material, wherein recesses (5a; 5b) are provided in the material of the second section (3) which reduce the stiffness.

An apparatus (4) for forming a panel (1) and designed to receive a flat strip (2') along a longitudinal direction (2a), is disclosed comprising: a die (5) including a plurality of first tracks (50) movable along a first path (5a) and consecutively arranged so as to make at least a first forming surface (51) at least at a first segment (s') of said first path (5a) parallel to said longitudinal direction (2a); a counterdie (6) including a plurality of second tracks (60) movable along a second path (6a) and consecutively arranged so as to make a second forming surface (61 ) countershaped with said first forming surface (51) at least at a second segment (s") of said second path (6a) parallel to said longitudinal direction (2a); first movement means (7) configured to move said first tracks (50) along said first path (5a); and second movement means (8) configured to move said second tracks (60) along said second path (6a); said movement means (7,8) being further configured to move said tracks (50, 60) simultaneously in a coordinated way in the same direction, at least when corresponding with said segments (s', s); and said segments (s', s") being mutually opposite, so that their forming surfaces (51, 61) always interpenetrate mutually pressing and moving, in use, along said longitudinal direction (2a) by said forming surfaces (51, 61 ), said strip (2') introduced between said die (5) and counterdie (6), thus producing said panel (1 ).

Embodiments described here concern a method and an apparatus for the production of a component made of plastic material suitable to be used as the containing body, or casing, of a household appliance, or as a receptacle. The component comprises a first layer and a second layer, which at least partly covers the first layer. Method for the production of a component (10) made of plastic material, suitable to form a containing body, or casing of a household appliance (50), or of a receptacle, comprising: - a first step of injecting a first plastic material into a first molding volume (VI) defined between a punch (29) and a first matrix (30) to make a first layer (11); - a second step of injecting a second plastic material into a second molding volume (V2) defined between said first layer (11) obtained in the first injection step and a second matrix (34), to make a second layer (12), characterized in that it provides to make said second layer (12) having an external surface provided with a three-dimensional finish, comprising an alternation of protruding portions (17) and recessed portions (18) and in that, during the first injection step, it provides to make, on said first layer (11), channels, or filling cavities (19), correlated to the shape and position of said recessed portions (18) of said second layer (12), suitable to compensate for the difference in thickness between said protruding portions (17) and said recessed portions (18), so as to obtain, in said second injection step, a substantially uniform filling flow of said second material.