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US 4,974,891 AGranted
Dynamic damping type bumper for motor vehicle
AssigneeNissan Motor Co., Ltd.
InventorKatsumi Furuta
Life of this patent
Estimating the term…
Abstract
A bumper of a so-called dynamic damper type, which comprises a considerably heavy armature, bushing-mounted holders for connecting the armature to bumper stays of a vehicle body with an interposal of elastic member therebetween, and a bumper facia covering the armature and secured to the vehicle body other than the bumper stays.
Claims8
In a motor vehicle having a vehicle body and bumper stays secured to said vehicle body, a dynamic damping type bumper which comprises:
- an elongated armature having a weight which is sufficient for constituting a damping mass for damping a vibration of said vehicle body, said armature being constructed of metal;
- connecting means connecting said armature to each of said bumper stays with an interposal of an elastic member therebetween such that the elongated dimension of said armature is spaced from and movable relative to said vehicle body;
- and
- a bumper facia of a plastic extending along said elongate armature with no portion thereof contacting said armature, said bumper facia being secured to portions of the vehicle body other than said armature so as to cover said elongated armature from view, whereby only said armature vibrates relative to said vehicle body, without interference by said facia, thereby dampening vibration of said vehicle body without substantial vibration of said facia relative to said vehicle body.
1 more element
Dependencies are inferred from the claim text.