DE2342095B2 - HEAD FOR TEST DOLLS FOR PERFORMING SAFETY TESTS IN MOTOR VEHICLES - Google Patents

Description

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The invention relates to a head for test dummies for carrying out safety tests in Motor vehicles, with a skull modeled. Accelerometer or deceleration measuring device accommodating housing and one of the facial features simulated, made of elastic plastic jacket and glued contact strips, which over Lines connected to an electronic writing unit which detects a head impact in terms of time and duration.

Heads for test dummies of the type mentioned have the disadvantage. that by means of the glued on Contact strips with slight accentuation of the head with body components are not detectable and that Head impacts were only detected in the impact points of the head where contact strips were provided was. However, the attachment of any number of contact strips would have become too complex and expensive. The contact strips in use today also have the disadvantage. that she through her elastic behavior a falsification of deceleration values revealed.

It is the object of the invention. these disadvantages too avoid and create a contact system for the head of test manikins that is easy to use even slight accentuation of the head with other body parts reliably detected and above in addition to adulterations. Avoids delay readings.

According to the invention, this object is achieved by using a thin mask made of tough elastic plastic that simulates facial features Distance to the facial features simulated surface of the jacket is arranged and the The inner surface of the mask and the surface of the jacket are provided with an electrically conductive layer, which are connected via lines to an electronic recorder unit, via which a contact is made is dispensable between the inner surface of the mask and the surface of the mantle in the event of a head eye.

The surface of the jacket can here in a Number of electrically isolated from one another, having its own connection to the electronic recorder unit.! Zones be divided.

The mask is covered with insulating knobs in the Maintained distance from the surface of the jacket and along a fastening edge by gluing to the Surface of the mantle attached.

The mask can be provided with a large number of air holes.

The mask can also be attached to its fastening edge with a large number of not on the surface of the Air corrugations attached to the jacket.

The head according to the invention for test dummies enables the detection of head impacts as well as of Head brushing with different body parts, whereby every possible point of impact of the head from the top of the head to the neck can be detected and avoid in addition, falsifications of measured delay values due to the thin, vented mask according to the invention at head impact.

The invention is explained in more detail using an exemplary embodiment shown in the drawing.

F i g. 1 shows a schematic side view of a Head of a test dummy with the mask according to the invention.

F i g. Figure 2 shows a vertical section of a head a test dummy according to Fig. I.

F i g. J shows a rear view of a head with a different mask design.

A head of a test manikin consists of a housing I made of metal and resembling the skull a jacket 2 made of elastic plastic that simulates the facial features. The housing I has a Cavity 3. are arranged in the acceleration and deceleration measuring devices 4. Of the Cavity 3 is usually accessible via a removable part of the head.

A head according to the invention is modeled with a thin (about 0.3 mm thick) facial features Mask 5 made of elastic plastic, which is a small distance (about 2 mm) to the surface of the Shell 2 is arranged. The mask 5 is in this case over small insulating knobs 6th in less areas at risk of impact, such as in the area of the nostrils or the eye sockets, held at a distance from the surface of the shell 2.

The mask 5 is in this case fastened to the jacket 2 via a rear fastening edge 7 by gluing.

The surface of the M.mtels 2. as far as it is from the Mask 5 i.-covered · λ ird and the inner surface of the mask 5 are here with an electrically! - itcapable layer β and 9 provided, which are in the r ig. 2 in dash-dot 1st lines is indicated and /. B. consist of Silberleitl.ick can.

So that at the time of the head impact by the No air volumes enclosed here by the mask 5 Adulteration of retired persons occurs can is the mask with a variety of Air holes 10 and / or with a multitude of on the fastening edge? the mask 5 arranged l.uf'sikken Il provided, which allow the displaced air to give way to the knees quickly.

It goes without saying that the attachment of the i> Mask 5 on the coat 2 of the head done so that when the mask is unloaded, there is no contact between the inside of the mask 5 and the surface of the jacket 2 occurs, while such a contact is already at slight deformations of the mask 5 should occur. The material and the thickness of the mask S will be expediently chosen so that only small Deforming forces are required to deform the mask, but that also applies to larger impact forces th no destruction of the mask 5 occurs but through a springback of the mask, the contact to the surface of the jacket 2 is interrupted again and so that the end point of the head contact is displayed wild.

With the head according to the invention for test dummies, there is thus the beginning and end of a head open during a security check it is possible to determine what kind of various calculations are of particular importance.

1 sheet of drawings

Claims (5)

Patent claims: 1. Head for test dummies for carrying out safety tests in motor vehicles, with a skull simulated. Acceleration and V'cr · / ögerungsmeßgeräle accommodating housing and a facial features, made of elastic plastic sheath and glued-on contact strips, which are connected via lines to an electronic recorder unit that detects a head impact according to the point in time and the duration, characterized in, that a thin, the facial features simulated mask (5) made of elastic plastic at a short distance / u of the facial features simulated surface of the jacket (2) is arranged and the inner surface of the mask (5) and the surface of the jacket (2) with an electrical ieitfäkigen layer (8 resp. 9) are ν seen, which are connected via cables to an electronic Schreibercmheit, is detectable at a Kopfaiifschlag via a contact between the inner surface of M.iske (5) and the surface of the jacket (2). 2. Head for test dummies according to claim I. characterized in that the surface of the jacket (2) is divided into a number of mutually electrically isolated zones which have their own connection / ur electronic pen unit. 3. Head for test manikins according to claims 1 and 2, characterized in that the mask (5) Via insulating knobs (6) held at a distance from the surface of the jacket (2) and via a Fastening edge (7) is attached by gluing to the surface of the jacket (2). 4. Head for test dummies nnchdon claims I to J. characterized in that the mask (5) is provided with a plurality of air holes (10). 5. Head for test manikins according to claims I to 4. characterized in that the M.iske (5) on their fastening edge (7) with a multitude of not on the surface of the jacket (2) adjacent air beads (II) ν can be seen.