Description
Primarily made of carbon-fiber, the device is U-shaped, with the back of the U set behind the nape of the neck, and the two arms laying flat along the top of the chest over the pectoral muscles; the device in general supported by the shoulders. It is attached only to the helmet — and not to the belts, driver's body, or seat — by two anchors on either side, much like the Hutchens device but placed slightly back. In a properly installed 5-point or 6-point racing harness, the belts that cross the driver's upper body pass directly over the HANS device on the driver's shoulders, and they buckle at the center of the driver's abdomen. Therefore, the HANS device is secured with the body of the driver, not the seat.
The purpose of the device is to stop the head from whipping forward in a crash, without otherwise restricting movement of the neck. In a crash, an unprotected body is decelerated by the seatbelt with the head maintaining velocity until it is decelerated by the neck. The HANS device maintains the relative position of the head to the body, with the device transferring energy to the much stronger chest, torso, shoulder, seatbelts, and seat as the head is decelerated.
Read more about this topic: HANS Device
Famous quotes containing the word description:
“Everything to which we concede existence is a posit from the standpoint of a description of the theory-building process, and simultaneously real from the standpoint of the theory that is being built. Nor let us look down on the standpoint of the theory as make-believe; for we can never do better than occupy the standpoint of some theory or other, the best we can muster at the time.”
—Willard Van Orman Quine (b. 1908)
“The great object in life is Sensation—to feel that we exist, even though in pain; it is this “craving void” which drives us to gaming, to battle, to travel, to intemperate but keenly felt pursuits of every description whose principal attraction is the agitation inseparable from their accomplishment.”
—George Gordon Noel Byron (1788–1824)
“A sound mind in a sound body, is a short, but full description of a happy state in this World: he that has these two, has little more to wish for; and he that wants either of them, will be little the better for anything else.”
—John Locke (1632–1704)