US20030230919A1 - Anti-submarine seat for an automobile - Google Patents

Anti-submarine seat for an automobile Download PDF

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Publication number
US20030230919A1
US20030230919A1 US10/321,093 US32109302A US2003230919A1 US 20030230919 A1 US20030230919 A1 US 20030230919A1 US 32109302 A US32109302 A US 32109302A US 2003230919 A1 US2003230919 A1 US 2003230919A1
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Prior art keywords
seat
spring
automobile
actuators
submarine
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Granted
Application number
US10/321,093
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US6672667B1 (en
Inventor
Min Park
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.)
Hyundai Motor Co
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Hyundai Motor Co
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Assigned to HYUNDAI MOTOR COMPANY reassignment HYUNDAI MOTOR COMPANY ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: PARK, MIN KYU
Publication of US20030230919A1 publication Critical patent/US20030230919A1/en
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Publication of US6672667B1 publication Critical patent/US6672667B1/en
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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
    • 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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2205/00—General mechanical or structural details
    • B60N2205/30—Seat or seat parts characterised by comprising plural parts or pieces

Definitions

  • the present invention relates to a seat for an automobile. More particularly, the present invention relates to an anti-submarine seat for an automobile capable of preventing the pelvis of a user from sliding forward during a collision.
  • a submarine phenomenon preventing mechanism that raises the front end of the seat cushion is known in the art.
  • the conventional submarine phenomenon preventing mechanism adversely effects the ergonomics of the automobile seat. Therefore, the occupant may be guarded from the submarine phenomenon injury, however they suffer from poor ergonomics, reduced comfort, and potential injury to the knees during long distance travel.
  • Embodiments of the present invention provide an anti-submarine seat for an automobile that reduces the chance of the pelvis of an automobile occupant from slipping forward during a collision.
  • a spring-type actuator means at a lower portion of a seat cushion, so as to raise a front end of the seat cushion and to descend a rear end of the seat cushion, the submarine phenomenon is potentially reduced.
  • An anti-submarine seat for an automobile comprises a spring-type actuators for elastically supporting a front end and a rear end of the seat cushion of the automobile.
  • the actuators being installed at a lower portion of the seat cushion. The actuators urge the front end of the seat cushion upwards and simultaneously descend the rear end of the seat cushion in case of an impact situation such as a vehicle crash.
  • the actuators include a cylindrical upper housing installed at an upper seat frame and a cylindrical lower housing installed at a lower seat frame.
  • a spring and a spring seat are installed in the lower housing or in the upper housing.
  • the spring and the spring seat are fixed in the lower housing or in the upper housing by means of a wedge-shaped spring fixing pin so that operation of the spring is selectively controlled.
  • the actuator is installed at the front end of the seat cushion and the spring is installed in the lower housing.
  • the spring is installed in the upper housing.
  • FIG. 1 is a side view of an embodiment of an anti-submarine seat for an automobile according to an embodiment of the present invention
  • FIG. 2 is a top plan view of the anti-submarine seat of FIG. 1;
  • FIGS. 3 a and 3 b are enlarged perspective views of an embodiment of the anti-submarine mechanism of an embodiment of the present invention.
  • FIG. 4 is a side view of an embodiment of the anti-submarine seat for the automobile showing an operational state of the anti-submarine seat according to an embodiment of the present invention.
  • an embodiment of the anti-submarine seat for an automobile includes an upper seat frame 11 fixedly attached to a bottom portion of a seat cushion. Also shown is a lower seat frame 12 mounted to the floor of the automobile. Spring-type actuators 10 for supporting the seat cushions are interposed between the upper seat frame 11 and the lower seat frame 12 .
  • FIG. 2 shows the actuators 10 equally disposed over the total sectional area of the seat cushion. In a preferred embodiment, about four actuators 10 are disposed at a front end of the seat cushion and about eight actuators 10 are disposed at the rear end of the seat cushion.
  • the actuator 10 includes a cylindrical upper housing 13 .
  • the cylindrical upper housing 13 is configured to be coupled with the lower surface of the upper frame 11 of the seat bottom.
  • a cylindrical lower housing 14 slidably interacts with the cylindrical upper housing 13 and is configured to be coupled to the an upper surface of the lower seat frame 12 .
  • the lower housing 14 is inserted into the upper housing 13 , FIG. 3 a .
  • the upper housing 13 is inserted into the lower housing 14 , FIG. 3 b.
  • a spring 15 and a spring seat 16 are included in the actuator 10 .
  • the spring 15 and the spring seat 16 can be installed in either the lower housing 14 or in the upper housing 13 .
  • the spring 15 and the spring seat 16 are fixed in the lower housing 14 or in the upper housing 13 by means of a wedge-shaped spring fixing pin 17 .
  • the wedge-shaped spring fixing pin 17 is configured to selectively control the actuator 10 .
  • the spring 15 and the spring seat 16 are installed in the lower housing 14 .
  • the wedge-shaped spring fixing pin 17 is disposed at a position above the spring 15 and the spring seat 16 . In use, when the wedge-shaped spring fixing pin 17 is released by the actuator 10 , the elastic force of the spring 15 acts to push the spring seat 16 upwards.
  • the spring 15 and the spring seat 16 are installed in the upper housing 13 .
  • the wedge-shaped spring fixing pin 17 is disposed at a position below the spring 15 and the spring seat 16 . In use, when the wedge-shaped spring fixing pin 17 is released by the actuator 10 , the elastic force of the spring 15 acts to force the spring seat 16 downwards.
  • the wedge-shaped spring fixing pin 17 is connected to a seat belt, FIG. 4.
  • the wedge-shaped spring fixing pin 17 disengages form the actuator 10 in accordance with movement of the seat belt.
  • the wedge-shaped spring fixing pin 17 disengages from the actuator 10 .
  • FIG. 4 shows the anti-submarine seat of an embodiment of the present invention in use.
  • the wedge-shaped spring fixing pin 17 disengages from the upper housing 13 .

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

Abstract

The present invention discloses an anti-submarine seat for an automobile. The anti-submarine seat prevents the occupant pelvis from slipping forward during a collision. The present invention discloses installing spring-type actuator means at a lower portion of a seat cushion so as to raise a front end of the seat cushion and to descend the rear end of the seat cushion at the time of an impact.

Description

    FIELD OF THE INVENTION
  • The present invention relates to a seat for an automobile. More particularly, the present invention relates to an anti-submarine seat for an automobile capable of preventing the pelvis of a user from sliding forward during a collision. [0001]
    • BACKGROUND OF THE INVENTION
  • There are many safety devices for the occupants of a vehicle, such as, seat belts, air bags, and the like. Typically the seat belt and the air bag are disposed between a passenger seat and a dashboard of the vehicle. The seat belt and the air bag function to restrain the upper body of the passenger during a collision such that injury to the passenger is potentially reduced. [0002]
  • However, a drawback associated with these devices is that the safety of the occupants is not entirely considered. For example, the so-called ‘submarine phenomenon’ occurs during many impacts, such as in vehicle collisions. This phenomenon is typified by the pelvis of an automobile occupant sliding forward, under a seat belt. This leads to injury in the leg region from collision with a lower end of a crash pad and to injury in the abdomen region from tension of the seat belt. [0003]
  • A submarine phenomenon preventing mechanism that raises the front end of the seat cushion is known in the art. However, the conventional submarine phenomenon preventing mechanism adversely effects the ergonomics of the automobile seat. Therefore, the occupant may be guarded from the submarine phenomenon injury, however they suffer from poor ergonomics, reduced comfort, and potential injury to the knees during long distance travel. [0004]
    • SUMMARY OF THE INVENTION
  • Embodiments of the present invention provide an anti-submarine seat for an automobile that reduces the chance of the pelvis of an automobile occupant from slipping forward during a collision. By installing a spring-type actuator means at a lower portion of a seat cushion, so as to raise a front end of the seat cushion and to descend a rear end of the seat cushion, the submarine phenomenon is potentially reduced. [0005]
  • An anti-submarine seat for an automobile according to an embodiment of the present invention comprises a spring-type actuators for elastically supporting a front end and a rear end of the seat cushion of the automobile. The actuators being installed at a lower portion of the seat cushion. The actuators urge the front end of the seat cushion upwards and simultaneously descend the rear end of the seat cushion in case of an impact situation such as a vehicle crash. [0006]
  • The actuators include a cylindrical upper housing installed at an upper seat frame and a cylindrical lower housing installed at a lower seat frame. A spring and a spring seat are installed in the lower housing or in the upper housing. The spring and the spring seat are fixed in the lower housing or in the upper housing by means of a wedge-shaped spring fixing pin so that operation of the spring is selectively controlled. [0007]
  • In a preferred embodiment, the actuator is installed at the front end of the seat cushion and the spring is installed in the lower housing. In an alternative embodiment, when the actuator is installed at the rear end of the seat cushion the spring is installed in the upper housing. When the seat belt is stretched tight, such as in the event of a collision, the actuator is activated to maneuver the springs of the anti-submarine seat. [0008]
    • BRIEF DESCRIPTION OF THE DRAWINGS
  • The objects and advantages of the present invention will be better understood by reference to the following detailed description, which should be read in conjunction with the accompanying drawings in which: [0009]
  • FIG. 1 is a side view of an embodiment of an anti-submarine seat for an automobile according to an embodiment of the present invention; [0010]
  • FIG. 2 is a top plan view of the anti-submarine seat of FIG. 1; [0011]
  • FIGS. 3[0012] a and 3 b are enlarged perspective views of an embodiment of the anti-submarine mechanism of an embodiment of the present invention; and
  • FIG. 4 is a side view of an embodiment of the anti-submarine seat for the automobile showing an operational state of the anti-submarine seat according to an embodiment of the present invention.[0013]
    • DETAILED DESCRIPTION OF THE INVENTION
  • As shown in FIG. 1, an embodiment of the anti-submarine seat for an automobile includes an [0014] upper seat frame 11 fixedly attached to a bottom portion of a seat cushion. Also shown is a lower seat frame 12 mounted to the floor of the automobile. Spring-type actuators 10 for supporting the seat cushions are interposed between the upper seat frame 11 and the lower seat frame 12.
  • FIG. 2 shows the [0015] actuators 10 equally disposed over the total sectional area of the seat cushion. In a preferred embodiment, about four actuators 10 are disposed at a front end of the seat cushion and about eight actuators 10 are disposed at the rear end of the seat cushion.
  • Referring to FIGS. 3[0016] a and 3 b, the actuator 10 includes a cylindrical upper housing 13. The cylindrical upper housing 13 is configured to be coupled with the lower surface of the upper frame 11 of the seat bottom. A cylindrical lower housing 14 slidably interacts with the cylindrical upper housing 13 and is configured to be coupled to the an upper surface of the lower seat frame 12. In a preferred embodiment the lower housing 14 is inserted into the upper housing 13, FIG. 3a. In an alternative embodiment the upper housing 13 is inserted into the lower housing 14, FIG. 3b.
  • A [0017] spring 15 and a spring seat 16 are included in the actuator 10. The spring 15 and the spring seat 16 can be installed in either the lower housing 14 or in the upper housing 13. The spring 15 and the spring seat 16 are fixed in the lower housing 14 or in the upper housing 13 by means of a wedge-shaped spring fixing pin 17. The wedge-shaped spring fixing pin 17 is configured to selectively control the actuator 10.
  • As shown in FIG. 3[0018] a, when the actuator 10 is installed at the front end of the seat cushion, the spring 15 and the spring seat 16 are installed in the lower housing 14. The wedge-shaped spring fixing pin 17 is disposed at a position above the spring 15 and the spring seat 16. In use, when the wedge-shaped spring fixing pin 17 is released by the actuator 10, the elastic force of the spring 15 acts to push the spring seat 16 upwards.
  • In the alternative embodiment shown in FIG. 3[0019] b, where the actuator 10 is installed at the rear end of the seat cushion, the spring 15 and the spring seat 16 are installed in the upper housing 13. The wedge-shaped spring fixing pin 17 is disposed at a position below the spring 15 and the spring seat 16. In use, when the wedge-shaped spring fixing pin 17 is released by the actuator 10, the elastic force of the spring 15 acts to force the spring seat 16 downwards.
  • In a preferred embodiment the wedge-shaped [0020] spring fixing pin 17 is connected to a seat belt, FIG. 4. The wedge-shaped spring fixing pin 17 disengages form the actuator 10 in accordance with movement of the seat belt. Thus, when the seat belt is stretched tight, as during a collision, the wedge-shaped spring fixing pin 17 disengages from the actuator 10.
  • Hereinafter, the operation of an embodiment of the anti-submarine seat for the automobile according to an embodiment of the present invention will be described in detail with reference to the drawings. [0021]
  • FIG. 4 shows the anti-submarine seat of an embodiment of the present invention in use. In the case of a collision, when the occupant stretches the seatbelt tightly, the wedge-shaped [0022] spring fixing pin 17 disengages from the upper housing 13. This prompts the spring 15 of the actuators 10 located at the front end of the seat (toward the knees of the passenger) to extend upwards and the springs of the actuators 10 located under the occupants seat bottom to descend downwards. Therefore, the front end of the seat cushion rises and the rear end of the seat cushion drops down. This helps restrict the occupants pelvis region from slipping forward during a collision.
  • While the present invention has been described with reference to a particular embodiment thereof, it will be understood by those skilled in the art that various changes in form and detail may be effected without departing from the spirit and scope of the invention. The scope of the invention is not intended to be defined by the above description of particular embodiments but is intended to be defined by the appended claims. [0023]

Claims (8)

What is claimed is:
1. An anti-submarine seat for an automobile, comprising spring-type actuators elastically supporting a front end and a rear end of a seat cushion of an automobile, the actuators being installed at a lower portion of the seat cushion, wherein the actuators urge the front end of the seat cushion upwards and simultaneously descend the rear end of the seat cushion in response to an impact due to a collison.
2. The anti-submarine seat of claim 1, wherein the actuators comprise:
a cylindrical upper housing installed at a lower surface of an upper seat frame of the seat cushion;
a cylindrical lower housing installed at an upper surface of the lower seat frame of a floor of an automobile; and
a spring and a spring seat installed in the lower or upper housing, wherein the spring and the spring seat are fixed in the lower or upper housing by means of a wedge-shaped spring fixing pin in the actuator so that an operation of the spring is selectively controlled.
3. The anti-submarine seat of claim 1 or 2, wherein the spring is installed in the lower housing of the actuators installed at the front end of the seat cushion, and the spring is installed in the upper housing of the actuators installed at the rear end of the seat cushion.
4. The anti-submarine seat of claim 1 or 2, wherein the actuator are activated by applying a force to the seat belt.
5. A anti-submarine seat for an automobile, comprising:
a vehicle seat configured with a front lower seat portion and a rear lower seat portion wherein said front lower seat portion is positioned moveably adjacent to said rear lower seat portion;
a plurality of first actuators coupled between a frame of said first lower seat portion and the floor of the automobile and configured to translate said first lower seat portion upward following activation; and
a plurality of second actuators coupled between a frame of said rear lower seat portion and the floor of the automobile and configured to translate said rear lower seat portion downward following activation.
6. The seat of claim 5, further comprising actuator pins configured to activate said first and said second activators following a stimulus.
7. The seat of claim 5, further comprising seat belts attached near one end to said activator pins.
8. The seat of claim 6, wherein said stimulus is tension applied to said seat belt from an occupant during a collision.
US10/321,093 2002-06-15 2002-12-16 Anti-submarine seat for an automobile Expired - Fee Related US6672667B1 (en)

Applications Claiming Priority (2)

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KR2002-33491 2002-06-15
KR10-2002-0033491A KR100461101B1 (en) 2002-06-15 2002-06-15 Anti submarine seat for automobile

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EP1767397A2 (en) * 2005-09-26 2007-03-28 Renault Side crash protection system by reclining
CN103249964A (en) * 2010-12-08 2013-08-14 日本发条株式会社 Output member and multi-haft drive device
CN103522923A (en) * 2013-10-14 2014-01-22 清华大学苏州汽车研究院（相城） Automobile seat with seat cushion changeable in rigidity
CN107487244A (en) * 2017-05-24 2017-12-19 宝沃汽车（中国）有限公司 Seat mounting structure and vehicle
US20180281625A1 (en) * 2017-03-28 2018-10-04 Honda Motor Co., Ltd. Vehicle seat control device, vehicle seat control method and vehicle seat control program
US20190308534A1 (en) * 2018-04-10 2019-10-10 Volvo Car Corporation Method for adjusting a position of a vehicle seat
US11820267B2 (en) 2019-06-11 2023-11-21 Ford Global Technologies, Llc Vehicle seat
US12005848B2 (en) * 2022-07-04 2024-06-11 Toyoda Gosei Co., Ltd. Occupant protection device

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EP1767397A2 (en) * 2005-09-26 2007-03-28 Renault Side crash protection system by reclining
FR2891213A1 (en) * 2005-09-26 2007-03-30 Renault Sas VEHICLE SEAT FOR MOVING A SEAT OCCUPANT IN THE EVENT OF A SHOCK.
EP1767397A3 (en) * 2005-09-26 2012-08-01 Renault Side crash protection system by reclining
US9222562B2 (en) * 2010-12-08 2015-12-29 Nhk Spring Co., Ltd. Output member and multi-shaft driving device
US20130255441A1 (en) * 2010-12-08 2013-10-03 Nhk Spring Co. Ltd Output member and multi-shaft driving device
CN103249964A (en) * 2010-12-08 2013-08-14 日本发条株式会社 Output member and multi-haft drive device
CN103522923A (en) * 2013-10-14 2014-01-22 清华大学苏州汽车研究院（相城） Automobile seat with seat cushion changeable in rigidity
US20180281625A1 (en) * 2017-03-28 2018-10-04 Honda Motor Co., Ltd. Vehicle seat control device, vehicle seat control method and vehicle seat control program
US10850639B2 (en) * 2017-03-28 2020-12-01 Honda Motor Co., Ltd. Vehicle seat control device, vehicle seat control method and vehicle seat control program
CN107487244A (en) * 2017-05-24 2017-12-19 宝沃汽车（中国）有限公司 Seat mounting structure and vehicle
US20190308534A1 (en) * 2018-04-10 2019-10-10 Volvo Car Corporation Method for adjusting a position of a vehicle seat
CN110356299A (en) * 2018-04-10 2019-10-22 沃尔沃汽车公司 Method for adjusting the position of vehicle seat
US10974627B2 (en) * 2018-04-10 2021-04-13 Volvo Car Corporation Method for adjusting a position of a vehicle seat
US11820267B2 (en) 2019-06-11 2023-11-21 Ford Global Technologies, Llc Vehicle seat
US12005848B2 (en) * 2022-07-04 2024-06-11 Toyoda Gosei Co., Ltd. Occupant protection device

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Publication number Publication date
KR100461101B1 (en) 2004-12-13
KR20030095879A (en) 2003-12-24
DE10261324A1 (en) 2004-02-26
DE10261324B4 (en) 2005-06-30
US6672667B1 (en) 2004-01-06

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