Patent Application
20050110319
This invention is not Federally Sponsored.
No appendix is attached.
This invention relates generally to the field of transportation and more specifically to a Three Position Anti-clotting Upright Reclinable Passenger Seat.
Most airlines passengers seats today only offer two basic positions a) take-off and landing and b) reading reclined position. Both seat positions are very tiring on long trips, especially for people fifty years old and older. For older people long flights become a deadly medical liability as the prolonged seating position causes a fatal clinical condition called “Deep Vein Thrombosis” (DVT) caused by blood clotting in the legs.
According to E. Library, an expert on DVT, “Blood clots may affect one in ten passengers”. With long flights, extending over two hours or intercontinental flights, there is an increase of DVT lawsuits from the flying population which clearly puts pressure on the airline industry to find an effective solution to promote a better passenger seat and or to eliminate, decrease or find a solution to the increasing amount of lawsuits brought to their steps because of this fatal affliction.
The deficiency on the current art of passenger seating is the fact that either seating position choice offered today is too tiring and crunched for long flights, and there is a need to stretch the legs for medical reasons as well as the idea of increasing comfort for passengers wanting to sleep and relax in a more reclinable position.
Most experts on the subject of Deep Vein Thrombosis agree that such blood clots seem to be on the rise affecting people of all ages and primarily affecting older (which is growing in number with the baby boomers) and high-risk people. So the advise from the experts to prevent this condition is to move around as much as possible as well as flex and stretch the legs during the flight.
This new invention promotes the reduction of DVT by allowing the passenger to adopt a more sloped and reclinable position and stretch out their legs during long flights, especially intercontinental flights.
The primary objective of the invention is to meet the safety transportation requirements for passenger seat regulations especially during take-off and landing while allowing the passengers have a less risk from the Deep Vein Thrombosis (DVT) point of view by providing a reclinable position.
Secondary objective of the invention is to provide a more comfortable method for naturally extending the legs on long trips to reduce the risk of DVT as well as to providing more restful sleeping and a comfortable alternative than the present two positions seating available today on long flights.
Another object of the invention is the better utilization of the regular or same amount of space available today for the regular two position seat in a more efficient manner and to use of the space available for today's long national or international flights, which, in turn, allows for the airlines to try to capture as much profit as possible.
Another object of the invention is to provide an automatic sequencing positioning mechanism that can be controlled via electric automatic controls or manually thru a manual crank 505. This crank is used primarily as a back up mechanism.
Other objectives and advantages of the present invention will become apparent from the following descriptions, taken in connection with the accompanying drawings, wherein, by way of illustration and example, an embodiment of the present invention is disclosed in
According to the new invention, the new passenger seat is an apparatus which allows the passenger to chose any of the three positions for take-off and landing, for reading or rest seating and an upright reclinable stretched position for allowing the legs to be in a more natural position. The passenger thru the electrical controls or others and the positioning mechanisms is able to choose the position of the seat to his preference during the flight and during take-off and landing as per the applicable transportation regulations.
In accordance with a preferred embodiment of the invention, there is a disclosed a Three Position Anti-clotting Upright Reclinable Passenger Seat apparatus comprising of several members, those elements being the main seat base 100, the backrest 200, the sub-back seat 201, the seat pan 300, the foot rest 400 and the positioning mechanism of elements group 500. This three position seat will allow a person to rest and or sleep on a more natural sloped reclining position with the extended legs while providing a regular reclinable seat for reading as well as a up right safe seat position for take-off and landing.
The drawings constitute a part of this specification and include exemplary embodiments to the invention, which may be embodied in various forms. It is to be understood that in some instances various aspects of the invention may be shown exaggerated or enlarged to facilitate an understanding of the invention.
a is a schematic view of the seat shown in the regular and known landing and take-off position.
b is a schematic view of the seat shown in the regular and known reading position.
c is a schematic view of the newly invented seat in the reclining stretch position.
The sub back seat element 201 is anchored at the upper end by a horizontal longitudinal bar element 205 and seat pan element 300 is anchored at the bottom by element 302.
Element 302 hinged at position 303 and moved by element 510 provides the upward and downward vector force to move and position seat pan element 300 as desired. Element 207 is a spring which compresses during the take-off and landing position and expands and helps the sub back element 201 to go to the upright reclinable positioning by expanding.
Seat pan element 300 is connected at the lower end to a horizontal longitudinal bar element 301 which is supported at the bottom by element 304. Element 304 hinged at position 301 and moved by element 305 provides the upward and downward vector force to move the seat pan element 300 as desired to obtain the desired position.
In accordance with the invention,
Similarly and relative to the position force, the sub back seat element,
Limiting the positioning of the back seat element 200 for the take-off landing position and the reading reclined position,
The multiple device mechanism required or a sample of the mechanism required
The multiple device mechanism required or a sample of the mechanism required for the positioning of the back seat element 200, the sub seat back element 201 and the seat pan element 300 is shown in
The threaded shaft element 500 is threaded in two sections in such manner that when rotated clockwise by the electrical motor 502 or the manual crank 505 will force element 509 first to move in a horizontal to the right and stop and then upon further rotation move elements 506, 510, 501 to travel right in a horizontal manner and stop, the same threaded shaft element 500 can be rotated counter-clockwise to provide a reverse action sequencing.
By rotating element 500 clockwise will force element 509 to move the seat back element 200 and 201 left to right by pushing on element 204 until limited by stop limit 102, this will transition element 200 and 201 from a take-off to a reading position. Further clockwise rotation of the element 500 will force to continue to move element 510 right and 506 to move rightward. The motion of element 510 right produces an upward forced motion on element 302 which creates a horizontal vector force to move element 303 which positions the seat pan 300 and sub back seat 201 in an upright reclinable position as shown on
For obtaining a reverse lower position of the seat assembly, the counter clock rotation of the threaded shaft 500 will reverse the sequencing in a perfect right to left order such as upright reclinable position to reading to landing position. Starting at the upright reclinable and initiating the counter clockwise rotation of the element 500 position will force to move element 510 and 506 to move leftward. The motion of element 510 left will produce a forced motion on element 302 which decreases the horizontal vector force to move element 303 downward as shown on
Continuing to rotate element 500 counter clockwise, from the reading position, will force element 506 to the left which will push on element 203 leftward forcing element 200 leftward until limited by stop limit 101, this will transition the back seat element 200 and the seat pan element 300 assembly to a take-off position.
Detailed descriptions of the preferred embodiment are provided herein. It is to be understood, however, that the present invention may be embodied in various forms particularly the electro mechanical mechanisms which can be obtained using a multiple of other electrical or mechanical or hydraulic or other means of providing the desired forces and positioning of the different assemblies and subassemblies. Therefore, specific details disclosed herein are not to be interpreted as limiting, but rather as a basis for the claims and as a representative basis for teaching one skilled in the art to employ the present invention in virtually any appropriately detailed system, structure or manner.
While the invention has been described in connection with a preferred embodiment, it is not intended to limit the scope of the invention to the particular form set forth, but on the contrary, it is intended to cover such alternatives, modifications, and equivalents as may be included within the spirit and scope of the invention as defined by the appended claims.
Although the invention is particularly applicable to aircraft passenger seats, it may also be applied to other seats used in general transportation for land or sea.
