CA2664435A1 - Resettable seat with energy absorber - Google Patents

Resettable seat with energy absorber Download PDF

Info

Publication number
CA2664435A1
CA2664435A1 CA 2664435 CA2664435A CA2664435A1 CA 2664435 A1 CA2664435 A1 CA 2664435A1 CA 2664435 CA2664435 CA 2664435 CA 2664435 A CA2664435 A CA 2664435A CA 2664435 A1 CA2664435 A1 CA 2664435A1
Authority
CA
Canada
Prior art keywords
seat
relative
energy
set forth
wire
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA 2664435
Other languages
French (fr)
Other versions
CA2664435C (en
Inventor
Gregory Alan Mowry
Marvin Kent Richards
Gregory Brian Grace
Curtis Phillip Parsons
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BAE Systems Aerospace and Defense Group Inc
Original Assignee
BAE Systems Aerospace and Defense Group Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BAE Systems Aerospace and Defense Group Inc filed Critical BAE Systems Aerospace and Defense Group Inc
Priority to CA2664435A priority Critical patent/CA2664435C/en
Publication of CA2664435A1 publication Critical patent/CA2664435A1/en
Application granted granted Critical
Publication of CA2664435C publication Critical patent/CA2664435C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
    • B60N2/42—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles the seat constructed to protect the occupant from the effect of abnormal g-forces, e.g. crash or safety seats
    • B60N2/427—Seats or parts thereof displaced during a crash
    • B60N2/42727—Seats or parts thereof displaced during a crash involving substantially rigid displacement
    • B60N2/42754—Seats or parts thereof displaced during a crash involving substantially rigid displacement of the cushion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
    • B60N2/38—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles specially constructed for use on tractors or like off-road vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
    • B60N2/42—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles the seat constructed to protect the occupant from the effect of abnormal g-forces, e.g. crash or safety seats
    • B60N2/4207—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles the seat constructed to protect the occupant from the effect of abnormal g-forces, e.g. crash or safety seats characterised by the direction of the g-forces
    • B60N2/4242—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles the seat constructed to protect the occupant from the effect of abnormal g-forces, e.g. crash or safety seats characterised by the direction of the g-forces vertical
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
    • B60N2/42—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles the seat constructed to protect the occupant from the effect of abnormal g-forces, e.g. crash or safety seats
    • B60N2/427—Seats or parts thereof displaced during a crash
    • B60N2/42727—Seats or parts thereof displaced during a crash involving substantially rigid displacement
    • B60N2/42754—Seats or parts thereof displaced during a crash involving substantially rigid displacement of the cushion
    • B60N2/42763—Seats or parts thereof displaced during a crash involving substantially rigid displacement of the cushion with anti-submarining systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Seats For Vehicles (AREA)

Abstract

A vehicle seat that strokes during an energy absorption process is able to reset. The seat can therefore stroke again, in the same stroking volume, for example during a secondary ground impact after a mine blast. An energy absorber associated with the seat is operative to absorb energy once during the first stroke and is also operative to absorb energy a second time when the seat strokes a second time.

Claims (15)

1. A method of protecting an occupant of a vehicle seat, including the steps of:
utilizing a stroke volume to absorb energy applied to the seat a first time; and utilizing the same stroke volume a second time to absorb energy applied to the seat a second time.
2. A method as set forth in claim 1 wherein the step of utilizing a stroke volume to absorb energy applied to the seat a first time includes:
moving a first seat portion relative to a second seat portion, the first seat portion carrying the vehicle occupant and the second seat portion being fixed to the vehicle structure; and absorbing energy with an energy absorber that is coupled between the first and second seat portions.
3. A method as set forth in claim 2 wherein the step of absorbing energy includes the step of deforming metal.
4. A seat assembly for an occupant of a vehicle, including:
a seat having first and second seat portions that are movable relative to each other in a first direction in response to sudden force applied to the seat assembly; and an energy absorber associated with the seat that is operative to absorb energy upon relative movement of the first and second seat portions in the first direction;
the first and second seat portions being movable relative to each other in a resetting direction to reset the seat; and the energy absorber being operative to absorb energy again upon subsequent relative movement of the first and second seat portions in the first direction.
5. A seat assembly as set forth in claim 4 wherein the energy absorber absorbs energy by deforming material.
6. A seat assembly as set forth in claim 5 wherein the material deformed is metal wire that is deformed by bending around a mandrel.
7. A seat assembly as set forth in claim 4 wherein the first seat portion is a seat pan supporting a seat bottom cushion and the second seat portion is a seat frame fixed to the vehicle structure and the seat pan pivots relative to the seat frame.
8. A method of protecting an occupant of a vehicle seat in response to the sudden application of force to the seat, the method including the steps of:
moving first and second portions of the seat relative to each other in a first direction in response to the application of force;
absorbing energy during the relative movement of the first and second seat portions in the first direction;
resetting the first and second seat portions; and absorbing energy again upon subsequent relative movement of the first and second seat portions in the first direction.
9. A method as set forth in claim 8 wherein the step of absorbing energy includes deforming a wire over a mandrel.
10. A method as set forth in claim 9 wherein the step of resetting the first and second seat portions includes the step of moving the wire through a gripper.
11. A method as set forth in claim 10 wherein the step of deforming a wire includes pulling the wire over the mandrel with the gripper.
12. A method as set forth in claim 8 wherein the first vehicle seat portion is a seat pan and the second vehicle portion is a seat frame that supports the seat pan for pivotal movement relative to the seat frame.
13. Apparatus comprising:
a seat frame;
a seat pan supported on the seat frame for movement relative to the seat frame; and an energy absorber coupled between the seat pan and the seat frame, the energy absorber including a wire gripper fixed for movement with the seat pan, a mandrel fixed for movement with the seat frame, a wire wrapped around the mandrel and extending through the wire gripper, and a spring connected between the wire and the seat pan.
14. Apparatus as set forth in claim 10 wherein the seat pan is supported on the seat frame for pivotal movement relative to the seat frame, the energy absorber absorbs energy of pivotal movement of the seat pan relative to the seat frame in a first direction, and the seat resets by pivotal movement of the seat pan relative to the seat frame in a second direction opposite the first direction.
15. Apparatus as set forth in claim 11 wherein the gripper moves relative to the mandrel when the seat pan moves relative to the seat frame, the gripper pulls the wire across the mandrel to absorb energy, and the wire moves through the gripper during resetting of the seat.
CA2664435A 2009-04-28 2009-04-28 Resettable seat with energy absorber Expired - Fee Related CA2664435C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA2664435A CA2664435C (en) 2009-04-28 2009-04-28 Resettable seat with energy absorber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA2664435A CA2664435C (en) 2009-04-28 2009-04-28 Resettable seat with energy absorber

Publications (2)

Publication Number Publication Date
CA2664435A1 true CA2664435A1 (en) 2010-10-28
CA2664435C CA2664435C (en) 2012-06-26

Family

ID=43029134

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2664435A Expired - Fee Related CA2664435C (en) 2009-04-28 2009-04-28 Resettable seat with energy absorber

Country Status (1)

Country Link
CA (1) CA2664435C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8714642B2 (en) 2010-03-31 2014-05-06 Survivability Solutions Llc Blast attenuation seat

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8714642B2 (en) 2010-03-31 2014-05-06 Survivability Solutions Llc Blast attenuation seat
US9499077B2 (en) 2010-03-31 2016-11-22 Survivability Solutions Llc Energy absorbing device for a vehicle

Also Published As

Publication number Publication date
CA2664435C (en) 2012-06-26

Similar Documents

Publication Publication Date Title
US20100270836A1 (en) Resettable Seat With Energy Absorber
JP5484481B2 (en) Vehicle collision energy absorber having multiple collision energy absorption stages
TWI336668B (en) Crash impact proof device for light vehicles
JP2013537152A5 (en)
EP2760700A1 (en) Safety seat
WO2012037222A3 (en) Energy absorbing seat for a vehicle
CN104709128A (en) Vehicle seat with energy absorbing structure
CN101734211A (en) vehicle body collision buffer device
CN107199986A (en) A kind of energy absorption device and method for child safety seat restraint strap
CA2664435A1 (en) Resettable seat with energy absorber
US20120273649A1 (en) Shock absorbing device
CN201193048Y (en) Vehicle steering tube pole assembly
CN103448643A (en) Spring automobile bumper
CN206704137U (en) One kind buffering accumulation of energy extensional mode automobile front beam
CN202879407U (en) Car bumper with X-shaped support frames
CN105752008A (en) Novel bumper buffer block
WO2008149043A3 (en) Energy absorption assembly comprising a non-return device
CN103692938A (en) Safety seat and energy absorbers thereof
CN104002709B (en) A kind of passive security type automotive seat
CN203637629U (en) Safety seat and energy-absorbing device thereof
CN107604848A (en) Roller buffer-type highway isolated column
CN111572420A (en) Military vehicle lightning protection seat energy-absorbing device
CN210047371U (en) Lightning protection special vehicle seat framework
CN101927782B (en) Collapse energy-absorption mechanism for steering column
CN201220646Y (en) Motor vehicle bumper

Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed

Effective date: 20210428