WO2010001253A1 - Structure de siège - plateau pour coussin ayant une palette à articulation flexible - Google Patents

Structure de siège - plateau pour coussin ayant une palette à articulation flexible Download PDF

Info

Publication number
WO2010001253A1
WO2010001253A1 PCT/IB2009/006397 IB2009006397W WO2010001253A1 WO 2010001253 A1 WO2010001253 A1 WO 2010001253A1 IB 2009006397 W IB2009006397 W IB 2009006397W WO 2010001253 A1 WO2010001253 A1 WO 2010001253A1
Authority
WO
WIPO (PCT)
Prior art keywords
vehicle seat
seat
flexible hinge
paddle
cushion pan
Prior art date
Application number
PCT/IB2009/006397
Other languages
English (en)
Inventor
Gregg R. Laframboise
Original Assignee
Johnson Controls Technology Company
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 Johnson Controls Technology Company filed Critical Johnson Controls Technology Company
Publication of WO2010001253A1 publication Critical patent/WO2010001253A1/fr

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
    • B60N2/70—Upholstery springs ; Upholstery
    • B60N2/7023—Coach-like constructions
    • B60N2/7035—Cushions
    • B60N2/7047—Springs
    • 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
    • B60N2/64—Back-rests or cushions
    • B60N2/66—Lumbar supports

Definitions

  • the present disclosure relates generally to the field of vehicle seating.
  • this disclosure relates to a vehicle seat and a method of suspending a seating surface of a vehicle seat, and still more specifically to a seat cushion pan with at least one flexible hinge paddle for use in vehicle seat components especially vehicle seat structures.
  • the present invention overcomes the disadvantages of the prior art by providing a vehicle seat having a seat back and a seat base, the seat back and/or the seat base comprising a seating surface for the use of an vehicle seat occupant, wherein the vehicle seat comprises a foam structure and a seat cushion pan assigned to the seating surface, wherein furthermore the vehicle seat comprises a hinge support suspension system assigned to the seating surface, the hinge support suspension system having at least one flexible hinge paddle.
  • the vehicle seat according to the present invention comprises a seat cushion pan and a hinge support suspension system, the hinge support suspension system preferably comprising one or a plurality of flexible hinge paddles.
  • the hinge support suspension system preferably comprising one or a plurality of flexible hinge paddles.
  • both the hinge support suspension system and the cushion pan are provided in a plastic material and/or a composite material.
  • the hinge support suspension system comprises at least one biasing mechanism / spring element operably coupled to the at least one flexible hinge paddle and/or the biasing mechanism / spring element is located between the flexible hinge paddle and the cushion pan.
  • the hinge support suspension system advantageously comprises at least one biasing mechanism / spring element or tab, the biasing mechanism / spring element (or tab) being located between the main part of the hinge support suspension system on the one hand and the cushion pan on the other hand. More preferably, each of the flexible hinge paddles comprises at least one spring element / tab.
  • the foam structure and the hinge support suspension system provide a first displacement range of the flexible hinge paddle and a second displacement range of the flexible hinge paddle, the second displacement range providing an increased displacement of the flexible hinge paddle in dependency of a displacement of a vehicle occupant in a direction orthogonal to the seating surface relative to the displacement of the flexible hinge paddle in dependency of a displacement of a vehicle occupant in a direction orthogonal to the seating surface in the first displacement range.
  • the at least one flexible hinge paddle is attached to the cushion pan by means of a snapping attachment.
  • the vehicle seat can be easily assembled and especially the seat cushion pan and the hinge support suspension system can be assembled easily by means of a simple snapping attachment operation of the hinge support suspension system and the cushion pan.
  • the hinge support suspension system comprises at least a first flexible hinge paddle and a second flexible hinge paddle.
  • one flexible hinge paddle can be advantageously positioned towards the front of a passengers hip point and the other flexible hinge paddle can be positioned towards the rear of the passengers hip point.
  • two flexible hinge paddles are attached to the cushion pan, wherein one flexible hinge paddle is located to the front edge of the seat cushion pan with respect to the hip point of a vehicle seat user, and wherein the other flexible hinge paddle is located towards the rear edge of the seat cushion pan with respect to the hip point of a vehicle seat user.
  • the present invention further relates to a method of suspending a seating surface of a vehicle seat, the vehicle seat having a seat back and a seat base, the vehicle seat comprising a foam structure and a seat cushion pan assigned to the seating surface, the vehicle seat further comprising a hinge support suspension system assigned to the seating surface, the hinge support suspension system having at least one flexible hinge paddle, wherein the foam structure and the hinge support suspension system provides a first displacement range of the flexible hinge paddle and a second displacement range of the flexible hinge paddle, the second displacement range providing an increased displacement of the flexible hinge paddle in dependency of a displacement of a vehicle occupant in a direction orthogonal to the seating surface relative to the displacement of the flexible hinge paddle in dependency of a displacement of a vehicle occupant in a direction orthogonal to the seating surface in the first displacement range.
  • FIG. 1 is a perspective view of a vehicle having seats including a cushion pan with at least one flexible hinge paddle according to an exemplary embodiment.
  • FIG. 2 is a perspective view of a vehicle seat including a cushion pan with at least one flexible hinge paddle according to an exemplary embodiment.
  • FIG. 3 is a perspective exploded view of a cushion pan with two flexible hinge paddles according to an exemplary embodiment.
  • FIG. 4 is a side view of the cushion pan shown in FIG. 3 with the two flexible hinge paddles.
  • FIG. 5 is a perspective view of the cushion pan shown in FIG. 3 with the two flexible hinge paddles.
  • FIG. 6 is a side view of the cushion pan shown in FIG. 3 with the two flexible hinge paddles, an insert foam and a dummy form.
  • FIG. 7 is a diagram showing the vertical displacement of the support dependent on the vertical displacement of the load form.
  • FIG. 8a is an alternative embodiment of a cushion pan of the present invention
  • FIG 8b is an alternative embodiment of a cushion pan of the present invention.
  • FIG 8c is an alternative embodiment of a cushion pan of the present invention.
  • FIG. 9 is an illustration of the design and load states of the cushion pan of Figure 8A
  • FIG. 10 is an alternative embodiment of a cushion pan of the present invention. DETAILED DESCRIPTION
  • a vehicle 10 is shown according to an exemplary embodiment.
  • the vehicle includes one or more vehicle seats 20 provided for an occupant of the vehicle 10.
  • vehicle seats 20 provided for an occupant of the vehicle 10.
  • FIG. 2 One exemplary embodiment of a structure of a vehicle seat 20 is shown in FIG. 2. While the vehicle 10 shown is a 4-door sedan, it should be understood that the vehicle seat 20, hereinafter also called seat 20, may be used in a mini-van, sport utility vehicle or any other means in or by which someone travels or something is carried or conveyed for any market or application including everything from office seating and transportation to air planes and space travel and everything in between.
  • the vehicle seat 20 shown includes a seat back 21 , a seat base 23, and a connection member 22 or recliner 22 coupled to the seat back 21 and the seat base 23.
  • the vehicle seat 20 further may include a head restraint 24 and base portion 25.
  • the headrest 24 extends upward form the seat back 21 and is configured to restrain the head of an occupant.
  • the base portion 25 (e.g. track assembly) couples the seat 20 to the vehicle body and may be configured to allow the seat 20 to be selectively positioned (manually or motor driven) relative to the vehicle body.
  • the seat back 21 and the seat base 23 comprise seating surfaces 26, i.e. surfaces on which a person sits on or to which a person is adjacent.
  • the seat base 23 and/or the seat back 21 comprise a seat cushion pan 27 with a hinge support suspension system 30.
  • the seat cushion pan 27 is only described for the example of a seat base 23 but an application to the seat back 21 is also possible.
  • the weight of the occupant 28 acts on a foam structure 29 placed on the cushion pan 27. Between the foam structure 29 (e.g.
  • the hinge support suspension system 30 is located.
  • the occupant is schematically represented by means of a dummy (such as an "OSCAR Load Form").
  • the material of the hinges of the support suspension system 30 is especially a plastic material (i.e. the hinges are made of flexible material hinge paddles).
  • This material of the hinge support suspension system 30 is preferably a material of 34% Glass Filled Nylon 6 at 50% RH but another flexible plastic material can also be used.
  • the hinge support suspension system 30 preferably comprises one or a plurality of flexible hinge paddles.
  • a first flexible hinge paddle 31 and a second flexible hinge paddle 32 is shown.
  • the two flexible hinge paddles 31 , 32 are attached to the cushion pan 27, wherein one flexible hinge paddle (e.g. the first flexible hinge paddle) 31 is located to the front edge 33 of the seat cushion pan 27 with respect to the hip point 35 of a vehicle seat user, and wherein another flexible hinge paddle (e.g. the second flexible hinge paddle) 32 is located towards the rear edge 34 of the seat cushion pan 27 with respect to the hip point 35 of a vehicle seat user 28 (cf. figure 3).
  • both the hinge support suspension system 30 and the cushion pan 27 are provided in a plastic material and/or a composite material.
  • the hinge support suspension system 30 preferably comprises at least one spring element 37, 38 (or tab), the spring element 37, 38 (or tab) being located between the main part of the flexible hinge paddle 31 , 32 (or of the hinge support suspension system 30) on the one hand and the cushion pan 27 on the other hand. More preferably, each of the flexible hinge paddles 31 , 32 comprise at least one spring element 37, 38.
  • the vehicle seat 20, i.e. the cushion pan 27 and the foam structure 29, is provided such that there is a certain comfort offset distance between the vehicle seat occupant
  • Such an offset distance is represented by a line designated by reference sign 28'.
  • Such a comfort offset 28' is, e.g., a so-called 50 mm offset distance.
  • the flexible hinge paddles 31 , 32 of the hinge support suspension system 30 are shown in a design position and in a deflected position.
  • the design position is designated by reference sign 31 ' and the deflected position is designated by reference sign 31 ".
  • the design position corresponds to a position of the flexible hinge paddles 31 , 32 where no load force or only a comparably low load force acts on the foam structure
  • the deflected position corresponds to a position of the flexible hinge paddles 31 , 32 where a maximum load force acts on the foam structure 29 and on the on the cushion pan 27.
  • the seat cushion pan 27 and the hinge support suspension system 30 can be assembled easily by means of a snapping attachment of the hinge support suspension system 30 and the cushion pan 27.
  • a hinge function is realized, i.e. the flexible hinge paddles 31 , 32 can, while being attached to the cushion pan 27, be pivoted about a pivot axis which extends usually along the cushion pan 27.
  • the pivot movement takes place between the design position (for the first hinge paddle 31 designated in figure 5 by reference sign 31') and the deflected position (for the first hinge paddle 31 designated in figure 5 by reference sign 31 ") of the flexible hinge paddles 31 , 32.
  • the vertical displacement of the support dependent on the vertical displacement of the load form i.e.the simulated vertical displacement of an occupant 29 of the vehicle seat 20
  • the abscissa representing the vertical displacement of the load form (i.e.the simulated vertical displacement of an occupant 29 of the vehicle seat 20).
  • a first displacement range 41 until a vertical displacement of the load form (or dummy / occupant 29) of approximately 30 mm to 35 mm the corresponding vertical displacement of the hinge support suspension system 30 (measured at a location of maximum distance from the pivot axis of each of the flexible hinge paddles 31 , 32) is comparably weak, namely at maximum displacement of 5,0 to 6,0 mm, and expressed by a comparably weak slope of two curves of the diagram represented in figure 7.
  • the end of the first displacement range 41 corresponds to the beginning of the spring elements (or tabs) sliding on the cushion pan.
  • a second displacement range 42 of the load form (or occupant 29) starting at approximately 30 mm to 35 mm and ending at approximately 55 mm to 60 mm the corresponding vertical displacement of the hinge support suspension system is increased, namely at maximum displacement of 18,0 to 20,0 mm, and expressed by an increased slope of two curves of the diagram of figure 7.
  • the end of the second displacement range 42 corresponds to the stopping of the spring elements 37, 38 (or tabs) sliding on the cushion pan 27.
  • th e spring elements 37, 38 start sliding on the cushion pan 27.
  • the beginning of the second displacement range 42 is designated by a circle and reference sign 43 in figure 7.
  • the spring elements 37, 38 stop sliding on the cushion pan 27.
  • the end of the second displacement range 42 is designated by a circle and reference sign 44 in figure 7.
  • the cushion pan 27 includes one flexible hinge paddle 31 , hereinafter also called a hinged support 31.
  • a hinged connection 117 of the hinged support 31 and cushion pan 27 allows rotational motion therebetween.
  • the hinged connection 117 may comprise moving components, such as but not limited to corresponding sets of loops formed on the cushion pan 27 and the hinged support 31 or hinge paddle 31 and adapted to receive a mechanical feature such as but not limited to a pin or flexible material allowing for pivoting of the hinged support 31 or hinge paddle 31 in relation to the cushion pan.
  • the hinged support 31 or hinge paddle 31 comprises a flexible material such as but not limited to plastics, metals, or composite materials.
  • the hinged support 31 or hinge paddle 31 , hinge 117 and cushion pan 27 may be integrated as a single component, for example but not limited to a molded hinged support 31 and hinge 117.
  • the cushion pan 27 preferably comprises a part 27' which is also called the cushion pan frame 27' comprising a region opposite of the hinge 117.
  • the flexible hinge paddle 31 is preferably engagable with a part of the cushion pan frame 27'.
  • the cushion pan 27 or cushion pan assembly 27 comprises a two flexible hinge paddles 31 , 32 (hereinafter also called hinged supports 31 , 32). Both of the flexible hinge paddles 31 , 32 being pivotally engagable with the cushion pan 27 via respective the hinges 117.
  • a biasing mechanism 114 such as but not limited to spring rate material, for example a coil spring, or an elastic material, for example elastic webbing.
  • the hinged support 31 , 32 may be attached to the cushion pan 27 or cushion pan frame 27' in a multitude of ways.
  • Figure 8A shows the hinged support 31 which is hingedly connected to the front portion (left hand side of figures 8a to 8c) of the cushion pan 27, the hinged support 31 protruding into a weight supporting portion, and the biasing mechanism 114 connecting a suspended end of the hinged support 31 to the rear portion (right hand side of figures 8a to 8c) of the cushion pan 27 such that the biasing mechanism 114 spans from the hinged support 31 to the cushion pan 27 parallel to the hinge axis.
  • Figure 8B illustrates the opposite configuration wherein the hinged support 110 is hingedly connected to the rear portion of the cushion pan 27, protruding into the weight support, with the biasing mechanism 114 connecting the suspended end of the hinged support 31 to the front portion of the cushion pan 27.
  • Figure 8C illustrates yet another embodiment comprising two hinged supports 31 , 32, the first hinged support 31 protruding from the front portion of the cushion pan 27 and the second hinged support 32 protruding from the rear portion of the cushion pan 27, the respective suspended ends of each of the first and second hinged supports 31 , 32 connected by the biasing mechanism 114.
  • the biasing mechanism 114 spans from the hinged support 31 , 32 to the cushion pan 27 perpendicular to the hinge axis.
  • the biasing mechanism 114 does not act between the hinged support 31 and a part of the cushion pan 27 but between the hinged support 31 and another structural part 200 of the vehicle seat 20.
  • structural parts 200 include a so-called rear tube of the vehicle seat 20 at a location substantially coinciding with the rotational axis of a recliner mechanism between the seat back 21 and the seat base 23.
  • the suspension rate (or spring rate) of the biasing mechanism 114 is provided adjustable, e.g. by means of a rotational movement of the at least part of the structural part 200. This adjustment possibility can either be provided at assembly of the vehicle seat (i.e. one time) or during use of the vehicle seat (by an occupant) in order to modify the rigidity (increased or decreased rigidity) of the suspension of the seating surface 26 of the vehicle seat 20 (e.g. sport suspension vs. luxury suspension).
  • the hinged support 31 , 32 includes a plurality of slots 115 which add additional flexibility to the support.
  • Each slot having longitudinal axis substantially parallel to the longitudinal axis of the hinge 117.
  • each slot may have a longitudinal axis substantially perpendicular to the longitudinal axis of the hinge 117.
  • the hinged support 31 , 32 is curvelinear in shape to provide a desired contour to the cushion pan 27.

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

Abstract

La présente invention concerne un siège de véhicule et un procédé permettant de suspendre une surface d'assise d'un siège de véhicule, le siège de véhicule ayant un dossier de siège et une base de siège, le dossier de siège et/ou la base de siège comportant une surface d'assise à des fins d'utilisation par un occupant du siège de véhicule, le siège de véhicule comportant une structure en mousse et un plateau pour coussin de siège attribués à la surface d'assise, le siège de véhicule comportant par ailleurs un système de suspension de support à articulation attribué à la surface d'assise, le système de suspension de support à articulation ayant au moins une palette à articulation flexible.
PCT/IB2009/006397 2008-07-01 2009-07-01 Structure de siège - plateau pour coussin ayant une palette à articulation flexible WO2010001253A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US7733608P 2008-07-01 2008-07-01
US61/077,336 2008-07-01

Publications (1)

Publication Number Publication Date
WO2010001253A1 true WO2010001253A1 (fr) 2010-01-07

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PCT/IB2009/006397 WO2010001253A1 (fr) 2008-07-01 2009-07-01 Structure de siège - plateau pour coussin ayant une palette à articulation flexible

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8727437B2 (en) 2008-06-27 2014-05-20 Johnson Controls Technology Company Actuator for crash activated head restraint
JP2015097868A (ja) * 2015-02-26 2015-05-28 テイ・エス テック株式会社 シートクッション及び車両用シート
JP2016179234A (ja) * 2016-06-16 2016-10-13 テイ・エス テック株式会社 シートクッション及び車両用シート
JP2017226417A (ja) * 2017-10-04 2017-12-28 テイ・エス テック株式会社 シートクッション及び車両用シート

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10058017A1 (de) * 2000-11-23 2002-05-29 Daimler Chrysler Ag Kraftfahrzeugsitz
EP1331132A1 (fr) * 2002-01-26 2003-07-30 Cheong Myung Hong Support lombaire pour siège automobile
US20050275263A1 (en) * 2004-06-10 2005-12-15 Norman Christopher J Back construction with flexible lumbar
WO2006086320A1 (fr) * 2005-02-07 2006-08-17 L & P Property Management Company Systeme de chauffage, climatisation et ventilation pour applications automobiles

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10058017A1 (de) * 2000-11-23 2002-05-29 Daimler Chrysler Ag Kraftfahrzeugsitz
EP1331132A1 (fr) * 2002-01-26 2003-07-30 Cheong Myung Hong Support lombaire pour siège automobile
US20050275263A1 (en) * 2004-06-10 2005-12-15 Norman Christopher J Back construction with flexible lumbar
WO2006086320A1 (fr) * 2005-02-07 2006-08-17 L & P Property Management Company Systeme de chauffage, climatisation et ventilation pour applications automobiles

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8727437B2 (en) 2008-06-27 2014-05-20 Johnson Controls Technology Company Actuator for crash activated head restraint
JP2015097868A (ja) * 2015-02-26 2015-05-28 テイ・エス テック株式会社 シートクッション及び車両用シート
JP2016179234A (ja) * 2016-06-16 2016-10-13 テイ・エス テック株式会社 シートクッション及び車両用シート
JP2017226417A (ja) * 2017-10-04 2017-12-28 テイ・エス テック株式会社 シートクッション及び車両用シート

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