Note: Descriptions are shown in the official language in which they were submitted.
CA 02560370 2006-09-15
Patent Application of
George Yat Ming Kwok
For
TITLE: COLLISION IMPACT FORCE MITIGATING DEVICE
BACKGROUND-FIELD OF INVENTION
The present invention relates to a collision impact force mitigating device
and as support structure ot bumpers t'or
vehicles.
BACKGROUND-DESCRlPTION OF PRIOR ART
The present day impact absorbing value of some of the vehicles are by
installation of bumpers with their support
svstem. such as, suv, pickups, and trucks. Those more stylist models are
designed to buckle up to the engine to absorb
impact force. They are of limited effect in low speed but very costly and the
latter not very successful at all in high
speed once it buckled right up to the engine compartment.
Other design of force mitigating systems such as U..S. Pat. NO. 6371541 (2002)
to Ronald Helland Pedersen showim_
a bracket made of metal with elongated peel slots and long big bolts that
shear the walls of the bracket which litted
within is part of the vehicle frame. The long big bolts that go against the
walls will have to stand a very high
compression point before their shearing action begin, and once they started it
will not take too much force to shear
because they are uniform, and to fit frames of all make into the shearing
bracket will be very costly if not impossible.
In U. S. Pat. NO. 5732801 (1998) to David C. Gertz showing an energy absorbing
structure include a hollo c~linder
with stamped pattern on the cylinder wall for initiating an indented buckling
from the impact force. they are directiy
mounted inline at the tip of the vehicle frame. A long hollow cylinder will
stick out too much and will be unsightl% and
a short cylinder will not have much absorbing effect, and thin wall cylinders
will not effectively support the bumper and
expected extra load, and thick wall cylinders will not absorb much impact.
In U. S. Pat. NO. 42721 14 (1981) to Tomoyuki Hirano showing a hollow
polyhedral body as an impact absorbing
device which has cutouts to assist of deformation and placed at the very end
of a vehicle frame. Once this device is
compressed it is a solid mass so it has to be a long unit to be of any value
and a long unit is not practical for the
manufacturers for stylish reasons and the device tends to bend side way when
at a slight angle in a collision.
In U. S. Pat. NO. 3934912 (1976) to Yoshiyuki Ogihara showing an impact force
absorbing device bN means ot'
hydraulic system. As it is well known that hydraulic system whether using oil
or gas which both have volume and
volume can not dissipate in a hurry so shock absorption effect is quite limit
no matter how the system is manipulated
In U. S. Pat. NO. 3694019 (1972) to John Ed Carter showing an energy absorbing
device by elongating or stretching a
thermoplastic structure, such as nylon yarn. The system is not reliable as
nylon yarns are affected b,~ the elements and
they are not very elastic.
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In U. S. Pat. NO. 2186137 (1937) to C. L. Haitaday showing s coil spring
fitted to an impact bar and bolted to the
elongated slots of the vehicle frame so the impact bar slides backward during
a collision. When a coil spring is fully
compressed it becomes a solid mass so it has to be a long length to be of some
effect.
The present invention acquires the effect of shearing, compnes,sing, januning
, pushing, sliding, peeling, buckling,
flexing, chiseling and snapping to mitigate the force of impact during a
collision. The present device deploys a
stationary plate made of material such as, but not limited to, aluminum, has a
push bar at the back end and cubicle
blocks and half moon lobes with the straight side facing to the front on the
inside surface of the plate and cutout notches
at the front end and the plate is bolted down to one side of the frame at the
front or back of a vehicle. Bolts to hold the
stationary plate down are multiple level, the top level of which is to hold
down the slider top plate with elongated
variable length slots, the top level of the bolts are compressed down with
torque together with lock nuts, flat washers
and cone lock washers are to be snapped off one at a time giving enough force
with the slider top plate sliding backward
which also push out the push bar of the stationary plate. Elongated slots with
teeth are to be accommodating the cubicles
with peeling and shearing effect when the plate is sliding. The elongated
slots of different lengths with straight ends
facing backward are to be accommodating the half moon lobes which will be
sheared off one at a time, Sharp triangle
k>bes at one end of the slider top piate are for jamming and chiseling to the
guided lines of the notched spots on the
stationary plate. Attached to the slider plate is the long calibration bar
with numerous carefully atranged through slots
where snap rods are placed according to calculation. A flange at the top of
the bar facilitate fastening the inside panel of
a two panels fixed butnper, there is a curve-out flex plate at one end of the
insert calibration bar rests against the outside
panel of the bumper so when minor force from a roll bump that the plate will
flex and bounce back the bumper. There
are also nttmerous through slots at the insert calibration bar and some of
them are elongated so that the rods that contact
the force will not snap all at the same tinte. Snapping rods are made of, but
not limit to, aluminum, brass, steel, etc.
Rods are to be snapped off three at any one titne, one just outside of the
flange of the long calibration bar, one joining
the two bars together, and one below the insert bar, they are to be snapped
off at a slight different timing depends on the
kind of make of rods used. The rods are placed through to the other end of the
bars, so the force of the impact will snap
off two ends of the rods that three rods will have six ends to be snapped off
at any one time. After the insert bar is
forced into the limit of the calibration bar, the continuous pressure
activates the top slider plate sliding backward and
effect more force mitigating action. A pre-fotmed metal sleeve is placed
covering the exposed part of the insert
calibration bar to keep all the snap rods in place and the dirt out and will
be compressed the predictable way and shape
without subject to the yield point. The slider top plate, calibration bar and
insett bar assembly are made of, but not limit
to, steel, it is simple, non high tech, effective, and does not cost a lot to
make and materials are already in the market
place.
OBJECTS OF THE INVENTION
It is the object of the invention to utilize the force of shearing, snapping,
flexing, compressing, jamming, chiseling,
pushing, sliding, buckling and peeling to mitigate its own impact force from a
collision. Furtber to the above is to
provide a low cost device and simple to fasten to the existing frante member
of the vehicle. Further object of the
invention is to lessen the impact from collisions which result to the most
fatalities and serious injuries.
BRIEF DESCRIPTION OF THE DRAWINGS
These and other objects and advantages of the invention will be apparent upon
reading the following description in
conjunction with the drawings, in which:
Fig. I is the collision impact force mitigating device with the cover of the
calibration bar off.
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Fig. 2 is showing the slider top plate with the calibration bar attached and
the insen calibration bar and Nler%e
separate.i. showing also the snap rods.
Fig. 31 is showing the collision impact force mitigating device open and also
part ofa vehicle frame.
DESCRIPTION OF THE PREFERRED EMBODIMENT
Referring to Fig. I showing the collision impact force mitigating device with
the cover ( 1 1) remosed tu sho%% the
whole calibration bar (15) and the calibration slots (19) which is attached to
the slider top plate (10) with the stationan
plate (20) at the bottom. hard wares (16) are fastening the two plates
together to the vehicle frame (350). An insert
calibration bar ( 1 2 ) with curve out flex plate ( 1 8 ) and a pre-formed
sleeve (13) is installed through a tlan_z ~ I s tof the
calibration bar ( I5),
Referring to Fig. 2 is the slider top plate ( 1 0 ) with the insert
calibration bar (12) and the sleeve t 1',I remw-ed to tihoN
the numerous round calibration slots (19) and elongated slots (24) and the
snapping rods (23). Sho%%inz also elongated
slots (22) on the slider top plate (10) for sliding backward.
Referring to Fig. 3 is showing the stationary plate (20) and the slider top
plate (10) open up to sho,,k elongated .loa,
with teeth-shaped cutters (36) are to accommodating the cubicle blocks (38)
and each set of cutters peel ot1 one la.% er tit
the block when the plate slides backward. Slots (35) with irregular lengths
and one side is half moon and the tront part
is straight thev are to accommodate the half-moon lobes (37) and thev will be
sheared ofl'one at a tinie Sharp tr-angle
lobes (39A) at one end of the slider top plate (10) tit into notches (39) and
effect lamming and chisel action toguidcd
parts of the stationary plate (20). The retaining bar (17) will be pushed away
first thing after the slrz% r i 1; t_ tlc\ plate
( 18) and the insert calibration bar (12) forced to their limit, snapping rods
( 23) will also being snapped ot1'at the sanir
time. Multi-level bolts (31 ) are facilitated to fasten the vehicle frame to
the two plates ( 10) and (20) vk itti locl.-nuts 02 t.
tlat washer (33) and lock cone washers (34), they are to be tightened down
with torque wrench to unitorm pressure. J'he
top level of the bolts are to be sheared offtogether with the hard wares one
at a time giving enough tixce
CONCLUSION
Accordingiv, the reader will see that a collision with considerable speed will
do a iot of damages to the .chicies
involved including serious injuries to the occupants. Collision impact force
will shear, snap. push. slide. compress. tarn.
cut, peel and buckle, all or some of the above forces will serious damage a
vehicle. The present invention acquired the
same forces transmined to the mitigating device and solved the problems
associated with the prior arts. it u rt _radual
action with stages from low to high speed most of all the device and its force
mitigating function is ad,iusrablr. It is
simple. easy to make and low cost to mass produce and can be fastened to
existing structure of the vehicle. and can br
adapted to fit other transportation apparatus. such as, but not limit to. bus,
trains and aircrafi. etc.
Although the description above contains manv specifications, these should not
be construed as limitin_ thc ,copc (if
the invention but as merely providing support to the illustrations of the
preferred embodinieni of this im. ennon Itir
example. the calibration and insert bar can be made of other shape of
materials such as round tube, snapping rods can he
of ceramic material etc.
Thus the scope of this invention should not be determined by the appended
claims and their equi4alents. rather than h\
the examples given herein.
