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US 4,361,352 AGranted
Bumper for vehicles
AssigneeAisin Seiki Kabushiki Kaisha
InventorFumio Wakamatsu
Life of this patent
Estimating the term…
Abstract
A bumper for vehicles includes a rim, a foamed plastic form positioned within the rim for absorbing shock, a reinforcement member for reinforcing the foamed plastic form and for sealing the form from deleterious effects of water, and a plurality of apertures defined by the reinforcement member for integrally joining the reinforcement member and the rim upon setting of a molten plastic material contained therein as a result of a molding operation during which the rim is formed.
Claims6
A bumper for vehicles comprising:
- a molded plastic rim member formed from setting of molten material as a result of a molding operation,
- a foamed urethane form positioned within said rim member to absorb shocks to which the bumper may be subjected, and
- a reinforcement member to reinforce the bumper positioned rearwardly of said foamed urethane form and affixed to said rim member when the latter is formed, said reinforcement member having two flanges which define a groove therebetween, the upper portions of said two flanges having projections which form a narrowed portion in said groove, at least one of said two flanges defining at least one aperture which connects to said groove for passing molten material therethrough and into said groove to form said rim member, whereby said rim member and said reinforcement member are integrally fixed to each other upon setting of the molten material.
Dependencies are inferred from the claim text.