Gestamp Hardtech Ab

Fumex Ab

Lars Karlander

Lars Hedlund

Mattias Asplund

Henrik Kohkoinen

A bumper beam for a vehicle has a hat beam profile, i.e. a generally U-shaped cross-section with the crown (-) pointing outwards. In each attachment region () it has a transverse bulkhead () fastened between the crown's sides () and running generally in the longitudinal direction of the vehicle.

Bumper beam

This invention concerns an arrangementintended to be used in a ventilation arrangement in order to hold and control an air channel. The arrangementcomprises a single arm constructionthat is arranged along the outer surfaceA of the air channel. The arm constructioncomprises two arm sectionsandarranged one after the other, a first jointthat unites a first arm partwith a fixture arrangementthat holds and maintains the basic position of the arm constructionand that makes possible different positioning, bending and stretching, of the arm constructionand the air channel, a second jointthat unites the first arm sectionwith the second arm sectionand that makes possible different positioning, bending and stretching, of the arm constructionand the air channel. Each arm sectionandcomprises an extended aluminum profileand. The invention concerns also a ventilation arrangement comprising such an arrangement

Arrangement and ventilation arrangement

This invention concerns an arrangement () that is comprised as a component () of an airtransport channel where the air-transport channel component () comprises two tubular sub-elements, a first sub-element () and a second sub-element (), where the second element () has a diameter that is somewhat larger than that of the first element (), which allows the first element () to be inserted into the second element () such that the two elements () can be displaced relative to each other in a telescopic manner. The arrangement () is characterised in that it comprises a glide sleeve () that is arranged between the first element () and the second element (), that the glide sleeve () comprises a first part () that retains the glide sleeve () at the second element (), that the glide sleeve () comprises a second part () that makes contact with the first element () under a force (F) that can be adjusted and that is united with the first part (), and that all parts of the second part () are located in front of the first end () of the second element. The invention concerns also a ventilation arm () and a ventilation system ().

Arrangement, ventilation arm, ventilation system

A bow-formed bumper beam for a vehicle has a hat profile with a central flange (), two webs (), and side flanges (). The beam has fastening portions () at its sides where the side flanges form fastening areas (-) for fastening the beam to the vehicle with the central flange facing outwards. In the area between the fastening areas, the side flanges have bent edges () and in association with the beginning of the bent edges, they have transverse dents (). These dents will easily be flattened out when the beam is bent in a collision so that the local tension in these sensitive areas is reduced. Thereby, the risk of cracking is reduced.

A bow-formed bumper beam for a vehicle has a hat profile with a central flange (), two webs (), and side flanges (). The beam has fastening portions () at its sides where the side flanges form fastening areas (-) for fastening the beam to the vehicle with the central flange facing outwards. The profile height of the beam decreases continuously from the fastening portions towards the center so that the profile height is less than two third of the highest profile height at the fastening portions. The central flange is wider at its center than at its fastening portions and has a stiffener in the form of an elongate depression () that extends from the center of the beam towards the fastening portions. In the area between the fastening portions, the side flanges have bent edges () and in association with the beginning of the bent edges, the side flanges have transverse dents.

A bumper beam () is fastened in two crash boxes (). The top part and bottom part of each crash box form fastening tabs () against the top and bottom of the bumper beam () and each tab is fastened to the bumper beam with more than one bolt (). A first hole () fits a first bolt () whereas the other hole/holes () permit for the bumper beam to turn a limited amount around said first bolt. Each tab is fastened to the bumper beam with more than one bolt and nut fastener (). A first hole () fits a first bolt () whereas the other hole/holes () permit for the bumper beam to turn a limited amount around said first bolt. If a crash box is compressed in an off-set crash, the other crash box remains intact.

Bumper beam mounting

A bumper beam is fastened to a bumper beam () of a vehicle () with intermediate crash boxes (). Each crash box comprises a left member () and a right member () formed of sheet metal, which are jointed together and have top portions () overlapping each other and bottom portions () overlapping each other to form double-sheet tabs (). These tabs extend out over the top and bottom surfaces of the bumper beam and are fastened to these surfaces.

Crash box and a method of fastening a bumper beam

A bumper beam for a vehicle in the form of a hat beam is adapted to be mounted with its opening facing outwards from the vehicle. The beam has a web height that varies along the beam. The web height in portions () between a central portion () and fastening portions () on each side of the central portion has a reduce web height as compared with both the central portion and the side portions.

Growing community of inventors

Skelleftea, Sweden

Lars Karlander