Patent Application
20180259425
The present invention relates generally to crash test dummies and, more particularly, to an articulating dummy positioning system for a crash test dummy.
Automotive, aviation, and other vehicle manufacturers conduct a wide variety of collision testing to measure the effects of a collision on a vehicle and its occupants. Through collision testing, a vehicle manufacturer gains valuable information that can be used to improve the vehicle, authorities examine vehicles to summit type approval, and consumer organizations provide information on vehicle safety ratings to the public.
Collision testing often involves the use of anthropomorphic test devices, better known as “crash test dummies”, to estimate a human's injury risk. The dummy must possess the general mechanical properties, dimensions, masses, joints, and joint stiffness of the humans of interest. In addition, they must possess sufficient mechanical impact response similitude and sensitivity to cause them to interact with the vehicle's interior in a human-like manner.
The crash test dummy typically includes a head assembly, spine assembly (including neck), rib cage assembly, abdomen assembly, pelvis assembly, right and left arm assemblies, and right and left leg assemblies. Generally, the arm assembly has an upper arm assembly and a lower arm assembly. The upper arm assembly is typically connected to a shoulder assembly, which, in turn, is typically connected to the spine assembly.
Technology has improved so that the anthropomorphic test device (ATD), or crash test dummy, positioning can be quantified by utilizing high-resolution cameras. However, there is no device that integrates a dummy positioning system (DPS) with test equipment for the ATD.
One of the disadvantages with current test equipment is that there are variations in the performance of the ATD in between test runs correlated to ATD location. The DPS can eliminate this variation if used in conjunction with the test equipment. The current DPS technology uses a tripod or similar mount to hold the cameras and a computer to analyze the data. However, the tripod is unwieldy and gets in the way more than it helps. Thus, there is a need in the art to merge the ATD test equipment and DPS into one system.
Accordingly, the present invention provides an articulating dummy positioning system for a crash test dummy. The articulating dummy positioning system includes a test fixture configured to support a crash test dummy therein and at least one articulating arm assembly coupled to the test fixture. The articulating dummy positioning system also includes at least one of at least one dummy positioning camera, computer monitor, and computer operatively coupled to the at least one articulating arm assembly to allow the at least one of at least one dummy positioning camera, computer monitor, and computer to move in and out of the test fixture relative to the crash test dummy to allow a crash test and analysis to be performed on the crash test dummy.
The present invention also provides an articulating dummy positioning system for a crash test dummy including a test fixture including a plurality of column members and an impact table disposed in the test fixture to support a crash test dummy. The articulating dummy positioning system also includes at least one articulating arm assembly coupled to one of the column members and at least one of at least one dummy positioning camera, computer monitor, and computer operatively coupled to the at least one articulating arm assembly to allow the at least one of at least one dummy positioning camera, computer monitor, and computer to move in and out of the test fixture relative to the crash test dummy to allow a crash test and analysis to be performed on the crash test dummy.
One advantage of the present invention is that a new articulating dummy positioning system is provided for a crash test dummy. Another advantage of the present invention is that the articulating dummy positioning system merges ATD test equipment and DPS into one system. An additional advantage of the present invention is that the articulating dummy positioning system mounts the DPS directly to a test fixture. Yet another advantage of the present invention is that the articulating dummy positioning system includes articulating arms that can be used to move DPS cameras into position and out of the way for the crash test. Still another advantage of the present invention is that the articulating dummy positioning system includes a computer that can also be mounted to the test fixture and can be used not only for the DPS, but also for data acquisition and analysis. A further advantage of the present invention is that the articulating dummy positioning system consolidates all the parts of the test equipment into one device that increases efficiency and accuracy of testing the ATD.
Other features and advantages of the present invention will be readily appreciated, as the same becomes better understood, after reading the subsequent description taken in conjunction with the accompanying drawings.
Referring to the drawings and in particular
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The impact stand 28 may include a plurality of anchor plates 50 connected to the bottom of the column members 38 to secure the impact stand 28 to a support surface such as a floor. The anchor plates 50 are made of a metal material such as aluminum. The anchor plates 50 are joined to the column members 38 and the floor by a suitable mechanism such as welding, fasteners 44, etc. The impact stand 28 may include a stabilizer arm member 52 extending longitudinally and joined to one of the end members 42 by a suitable mechanism such as welding, fasteners 44, etc. The impact stand 28 may include a plurality of stabilizer cross-members 54 between the stabilizer arm 52 and the end member 42 and joined by a suitable mechanism such as welding, fasteners 44, etc. The impact stand 28 may include a stabilizer column member 56 extending between the stabilizer arm 52 and the support surface and joined by a suitable mechanism such as welding, fasteners 44, etc. The members 52, 54, and 56 are made of a metal material such as aluminum. It should be appreciated that the stabilizer column member 56 may include an anchor plate 50 at the bottom thereof and joined by a suitable mechanism such as welding, fasteners 44, etc.
The impact stand 28 may include one or more brackets 58 coupled to the column members 38. In one embodiment, the brackets 58 are rectangular and tubular sleeves that are disposed over each of the column members 38. The brackets 58 are made of a metal material such as aluminum. The brackets 58 are joined to the column members 38 by a suitable mechanism such as welding, fasteners 44, etc.
The articulating dummy positioning system 10 includes one or more articulating arm assembly, according to the present invention and generally indicated at 60, coupled to the impact stand 28. In one embodiment, the articulating arm assembly 60 includes a swivel arm 62 and a clamp assembly, generally indicated at 64, to connect the swivel arm 62 to one of the column members 38. In one embodiment, the swivel arm 62 includes one or more support bars 66 and one or more rotation pins 68 to allow the support bars 66 to rotate relative to each other and the clamp assembly 64. The articulating arm assemblies 60 support ATD test equipment. In one embodiment, the ATD test equipment includes one or more DPS cameras 70 mounted to one or more of the support bars 66 of the articulating arm assembly 60. The DPS cameras 70 are of a high resolution type. In another embodiment, the ATD test equipment includes a computer monitor 72 mounted to the support bar 66 of the articulating arm assembly 60 by a bracket 74 and one rotation pin 68 to allow the computer monitor 72 to be rotated. In yet another embodiment, the ATD test equipment includes a computer 76 mounted to the support bar 66 of the articulating arm assembly 60 via the bracket 74 and one rotation pin 68 to allow the computer 76 to be rotated. It should be appreciated that, in one embodiment, one articulating arm assembly 60 is attached to one column member 38 that supports the DPS cameras 70 and another articulating arm assembly 60 is attached to another column member 38 that supports either the computer monitor 72 and/or the computer 74. It should be appreciated that the DPS is directly mounted to the test fixture 28 and the articulating arm assemblies 60 are used to move the DPS cameras 70 and computer monitor 72 and/or computer 74 into position and out of the way for the crash test. It should also be appreciated that the computer 74 and/or computer monitor 72 can also be mounted to the test fixture 28 and the computer 74 can be used not only for the DPS, but also for data acquisition and analysis. It should further be appreciated that all four components allow a full test and analysis to be performed on one device. It should still further be appreciated that consolidating all the parts of the crash test into one device increases the efficiency and accuracy of testing of the ATD or crash test dummy 12.
In one embodiment, the clamp assembly 64 includes a pair of mounting plates 78 disposed on opposed sides of the column member 38. The clamp assembly 64 includes one or more fasteners 80 extending through the mounting plates 78 to rigidly attach the articulating arm assembly 60 to the column member 38. One of the mounting plates 78 includes a journal or bracket 82 for the rotation pin 68 to allow the support bar 66 to rotate relative to the mounting plate 78. It should be appreciated that the clamp assembly 64 rigidly attaches the swivel arm 62 to the impact stand 28. It should be appreciated that the clamp assemblies 64 may be adjustable up and down along the column members 38.
In operation of the articulating dummy positioning system 10, the crash test dummy 12 is secured to the impact table 26 in the impact stand 28. The articulating arm assemblies 60 can be moved in and out of the test stand 28 to position the DPS cameras 70 and computer 74 and/or computer monitor 72 relative to the crash test dummy 12 and moved out of the way for the crash test.
The present invention has been described in an illustrative manner. It is to be understood that the terminology, which has been used, is intended to be in the nature of words of description rather than of limitation.
Many modifications and variations of the present invention are possible in light of the above teachings. Therefore, the present invention may be practiced other than as specifically described.
The present application claims the benefit of U.S. Provisional Patent Application Ser. No. 62/468,054, filed Mar. 7, 2017, the entire disclosure of which is hereby expressly incorporated by reference.
| Number | Date | Country | |
|---|---|---|---|
| 62468054 | Mar 2017 | US |
