Integral door inner reinforcement

Details Integral door inner reinforcement Integral door inner reinforcement

2000-05-03

2001-10-16

Pape, Joseph D. (Department: 3612)

Land vehicles: bodies and tops

Bodies

Door or window with specified vehicle feature

C296S182100, C296S182100, C049S502000, C052S749100

Reexamination Certificate

active

06302473

ABSTRACT:

BACKGROUND OF THE INVENTION
1. Field of the Invention
The invention concerns an integral door inner reinforcement for vehicle doors.
The integral door inner reinforcement serves to increase passenger safety. It is intended to prevent deformation of the door in both frontal and side collisions. A particular need is to ensure that the door can still be opened properly even after an accident. At the same time, the door must not be of such rigid construction that the permissible loads and strain paths are exceeded in the event of inertia-induced collisions of passengers with the inside of the door.
The task of the invention is to satisfy the foregoing oppositely tending goals in an optimal manner.
2. Description of the Prior Art
An integral door inner reinforcement is usually an elongated profiled part of suitable cross section. Various cross-sectional shapes are used. For the required absorption of forces, such an integral door inner reinforcement is usually joined to the inside panel of the door, particularly by spot welds. These reinforcements serve to strengthen the door against buckling below the belt molding.
SUMMARY OF THE INVENTION
According to the invention, the integral door inner reinforcement is realized as an elongated profiled part and is provided with at least one pot-shaped portion. In particular, the elongated portion of the profiled part opens into the pot-shaped portion. The axis of the pot is roughly perpendicular to the longitudinal axis of the profiled part. The pot-shaped portion and its transition to the longitudinal profiled part form a relatively rigid box shape. The arrangement and geometry of this pot-shaped portion between the ends of the elongated integral door inner reinforcement are rigid construction in the region of an occupant's ribs, the construction as a whole can be relatively nonrigid due to the diagonal trussing of the inside panel.
A pot-shaped portion is also considered to be present, for example, if the longitudinal portion has a substantially U-shaped cross section and a cover panel extending perpendicularly to the longitudinal axis is, for example, welded in at the end confronting the hinge, or if the U-shaped cross section is broadened, for example segmentally.


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