U.S. patent application number 10/158869 was filed with the patent office on 2003-06-19 for safety seat.
Invention is credited to Tak, Chen Pak.
Application Number | 20030111879 10/158869 |
Document ID | / |
Family ID | 21687756 |
Filed Date | 2003-06-19 |
United States Patent
Application |
20030111879 |
Kind Code |
A1 |
Tak, Chen Pak |
June 19, 2003 |
SAFETY SEAT
Abstract
A safety seat for transportation equipment. The safety seat
comprises a back, a headrest and a cushion. The back, the headrest
and the cushion respectively have at least one oil-pressure damper
and at least one impact barricade disposed therein. The safety seat
can absorb impact energy by the back, the headrest and the cushion
when the transportation equipment is subject to an impact or
running on an uneven road surface. Thus, the safety seat can
protect the head, the neck, the back and the hips of a passenger
from injury.
Inventors: |
Tak, Chen Pak; (Taipei,
TW) |
Correspondence
Address: |
BIRCH STEWART KOLASCH & BIRCH
PO BOX 747
FALLS CHURCH
VA
22040-0747
US
|
Family ID: |
21687756 |
Appl. No.: |
10/158869 |
Filed: |
June 3, 2002 |
Current U.S.
Class: |
297/216.13 |
Current CPC
Class: |
B60N 2/4228 20130101;
B60N 2/527 20130101 |
Class at
Publication: |
297/216.13 |
International
Class: |
B60N 002/42 |
Foreign Application Data
Date |
Code |
Application Number |
Dec 19, 2001 |
TW |
90222323 |
Claims
What is claimed is:
1. A safety seat for transportation equipment, comprising: a back
having at least one first oil-pressure damper and at least one
first impact barricade, the first oil-pressure damper and the first
impact barricade disposed inside the back and the first
oil-pressure damper spaced from the first impact barricade at a
predetermined distance; a headrest connected to the upper portion
of the back and having at least one second oil-pressure damper and
at least one second impact barricade, the second oil-pressure
damper and the second impact barricade disposed inside the headrest
and the second oil-pressure damper spaced from the second impact
barricade at a predetermined distance; and a cushion connected to
the lower portion of the back and having at least one third
oil-pressure damper and at least one third impact barricade, the
third oil-pressure damper and the third impact barricade disposed
inside the cushion and the third oil-pressure damper spaced from
the third impact barricade at a predetermined distance.
2. The safety seat as claimed in claim 1, wherein the interior of
the back, the headrest and the cushion are filled with foam
sponges.
3. The safety seat as claimed in claim 1, wherein the first
oil-pressure damper is disposed on the rear inner wall of the back
by a first mounting base.
4. The safety seat as claimed in claim 1, wherein the second
oil-pressure damper is disposed on the rear inner wall of the
headrest by a second mounting base.
5. The safety seat as claimed in claim 1, wherein the third
oil-pressure damper is disposed on the bottom inner wall of the
cushion by a third mounting base.
6. The safety seat as claimed in claim 1, wherein the first impact
barricade, the second impact barricade and the third impact
barricade are made of a rigid material.
7. The safety seat as claimed in claim 1, wherein the rear portion
of the back further comprises a first assembling door for
assembling and disassembling the first oil-pressure damper and the
first impact barricade.
8. The safety seat as claimed in claim 1, wherein the rear portion
of the headrest further comprises a second assembling door for
assembling and disassembling the second oil-pressure damper and the
second impact barricade.
9. The safety seat as claimed in claim 1, wherein the bottom of the
cushion further comprises a third assembling door for assembling
and disassembling the third oil-pressure damper and the third
impact barricade.
Description
BACKGROUND OF THE INVENTION
[0001] 1. Field of the Invention
[0002] The present invention relates to a safety seat, and in
particular to a safety seat for transportation equipment.
[0003] 2. Description of the Related Art
[0004] Generally speaking, when transportation equipment such as an
automobile is subject to a front or rear impact, the back of a
passenger moves rearward to hit the back of the seat, thus causing
injury to the spine or back.
[0005] In addition, when the automobile is subject to an impact or
running on a jolty road, the hips of the passenger move downward to
hit the seat cushion, thus causing possible injury to the hips or
spine.
[0006] Currently developed automobile seats cannot provide an
effective solution to improve the aforementioned safety problems.
Further, automobile seat manufacturers focus on promoting comfort
of the automobile seats without developing safety seats that really
protect passengers when a car accident occurs.
SUMMARY OF THE INVENTION
[0007] An object of the invention is to provide a safety seat for
transportation equipment. The safety seat comprises a back having
at least one first oil-pressure damper and at least one first
impact barricade, the first oil-pressure damper and the first
impact barricade disposed inside the back and the first
oil-pressure damper spaced from the first impact barricade at a
predetermined distance; a headrest connected to the upper portion
of the back and having at least one second oil-pressure damper and
at least one second impact barricade, the second oil-pressure
damper and the second impact barricade disposed inside the headrest
and the second oil-pressure damper spaced from the second impact
barricade at a predetermined distance; and a cushion connected to
the lower portion of the back and having at least one third
oil-pressure damper and at least one third impact barricade, the
third oil-pressure damper and the third impact barricade disposed
inside the cushion and the third oil-pressure damper spaced from
the third impact barricade at a predetermined distance.
[0008] A detailed description will be given by the following
embodiments with reference to the accompanying drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
[0009] The present invention can be more fully understood by
reading the subsequent detailed description and examples with
references made to the accompanying drawings, wherein:
[0010] FIG. 1 is a perspective side view showing the safety seat of
the invention;
[0011] FIG. 2 is a perspective side view showing the headrest and
the back of the invention;
[0012] FIG. 3 is a cross-section along line A-A of FIG. 2;
[0013] FIG. 4A shows the oil-pressure damper of the invention;
[0014] FIG. 4B is a bottom view of the oil-pressure damper of the
invention; and
[0015] FIG. 5 is a plane view showing the mounting base of the
oil-pressure damper of the invention.
DETAILED DESCRIPTION OF THE INVENTION
[0016] Referring to FIG. 1, the safety seat 1 comprises a back 10,
a headrest 20 and a cushion 30. The back 10, the headrest 20 and
the cushion 30 are filled with foam sponges. In this embodiment, as
shown in FIG. 2 and FIG. 3, the back 10, the headrest 20 and the
cushion 30 have two oil-pressure dampers and an impact barricade
disposed therein.
[0017] Referring first to FIG. 4A, the stroke of the oil-pressure
damper 40 is 12 mm. The arc end portion 42 of the oil-pressure
damper 40 can eliminate side impact force. The fixing end 44 has
threads 45 by which the oil-pressure damper 40 is whirled to a
mounting base 50, as shown in FIG. 5. In FIG. 4A, the stroke C is
12 mm.
[0018] Referring to FIG. 4B, a groove 46 for assembling and
disassembling the oil-pressure damper 40 is formed on the bottom of
the fixing end 44.
[0019] Referring to FIG. 5, the mounting base 50 of the
oil-pressure damper 40 comprises four mounting holes 52, two
assembling holes 54 and two stop bolts 56. The two assembling holes
54 are used to assemble the oil-pressure damper 40 on the mounting
base 50 and the two stop bolts 56 are used to prevent the
oil-pressure damper 40 from unwinding due to shock.
[0020] Referring to FIG. 1, the impact barricades 14, 24 and 34 are
made of a rigid material and are not required to have definite
shapes. When an impact occurs, a part of the kinetic energy
generated is absorbed by the foam sponges in the safety seat 1, and
the other part of the kinetic energy is absorbed and dissipated by
compression between the oil-pressure dampers and the impact
barricades. In this embodiment, the distance between the
oil-pressure damper and the impact barricade can be 1.about.2
mm.
[0021] In addition, three assembling doors (not shown) for
assembling and maintaining the oil-pressure dampers are disposed on
the rear portion of the back 10, the rear portion of the headrest
20 and the bottom of the cushion 30, respectively.
[0022] The heat generated by compression between an oil-pressure
damper and an impact barricade is calculated as follows:
[0023] If the head of a passenger weighs 8 Kg and the impact speed
of an automobile is 21.6 Km/Hr (6 m/s), the kinetic energy of the
head before impact is 0.5.times.8.times.6.sup.2=144 N-m. According
to the law of the conservation of energy, the kinetic energy 144
N-m can be absorbed by two oil-pressure dampers with a stroke of 12
mm. Thus, the heat converted from the kinetic energy after impact
is 144 N-m.
[0024] The following description will explain the structure of the
safety seat 1.
[0025] Referring to FIG. 1, FIG. 2 and FIG. 3, the back 10 has two
first oil-pressure dampers 12 and a first impact barricade 14
disposed therein. The first impact barricade 14 is required to
cover the two first oil-pressure dampers 12. The distance between
the first oil-pressure damper 12 and the first impact barricade 14
is 2 mm. The first oil-pressure damper 12 is mounted on the rear
inner wall of the back 10 by a first mounting base 16.
[0026] The headrest 20 is connected to the upper portion of the
back 10 and has two second oil-pressure dampers 22 and a second
impact barricade 24 disposed therein. Similarly, The second impact
barricade 24 is required to cover the two second oil-pressure
dampers 22. The distance between the second oil-pressure damper 22
and the second impact barricade 24 is 2 mm. The second oil-pressure
damper 22 is mounted on the rear inner wall of the pillow 20 by a
second mounting base 26.
[0027] The cushion 30 is connected to the lower portion of the back
10 and has two third oil-pressure dampers 32 and a third impact
barricade 34 disposed therein. Similarly, the third impact
barricade 34 is required to cover the two third oil-pressure
dampers 32. The distance between the third oil-pressure damper 32
and the third impact barricade 34 is 2 mm. The third oil-pressure
damper 32 is mounted on the bottom inner wall of the cushion 30 by
a third mounting base 36.
[0028] While the invention has been described by way of example and
in terms of the preferred embodiment, it is to be understood that
the invention is not limited to the disclosed embodiments. To the
contrary, it is intended to cover various modifications and similar
arrangements (as would be apparent to those skilled in the art) .
Therefore, the scope of the appended claims should be accorded the
broadest interpretation so as to encompass all such modifications
and similar arrangements.
* * * * *