EP0689509A1 - Organe de suspension de siege d'automobile - Google Patents

Organe de suspension de siege d'automobile

Info

Publication number
EP0689509A1
EP0689509A1 EP94911006A EP94911006A EP0689509A1 EP 0689509 A1 EP0689509 A1 EP 0689509A1 EP 94911006 A EP94911006 A EP 94911006A EP 94911006 A EP94911006 A EP 94911006A EP 0689509 A1 EP0689509 A1 EP 0689509A1
Authority
EP
European Patent Office
Prior art keywords
slide plate
brake
brake slide
vehicle seat
suspension unit
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.)
Withdrawn
Application number
EP94911006A
Other languages
German (de)
English (en)
Other versions
EP0689509A4 (fr
Inventor
Donald Maxwell Culley, Jr.
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.)
Rosdon Engineering and Manufacturing Pty Ltd
Original Assignee
Rosdon Engineering and Manufacturing Pty Ltd
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 Rosdon Engineering and Manufacturing Pty Ltd filed Critical Rosdon Engineering and Manufacturing Pty Ltd
Publication of EP0689509A1 publication Critical patent/EP0689509A1/fr
Publication of EP0689509A4 publication Critical patent/EP0689509A4/fr
Withdrawn legal-status Critical Current

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
    • B60N2/50—Seat suspension devices
    • 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
    • B60N2/50—Seat suspension devices
    • B60N2/502—Seat suspension devices attached to the base of the seat
    • 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
    • B60N2/50—Seat suspension devices
    • B60N2/505—Adjustable suspension including height adjustment
    • 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
    • B60N2/50—Seat suspension devices
    • B60N2/506—Seat guided by rods
    • B60N2/508—Scissors-like structure
    • 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
    • B60N2/50—Seat suspension devices
    • B60N2/54—Seat suspension devices using mechanical springs
    • B60N2/544—Compression or tension springs

Definitions

  • THIS INVENTION relates to a vehicle seat suspension unit.
  • it relates to a "decelerat ⁇ r" or damper for such a suspension unit.
  • a vehicle seat suspension unit "of the type defined” shall be used to include a suspension unit having: a base frame mountable on a vehicle; a seat support frame to mount an operator's seat; a scissor arms assembly interconnecting the frames to enable the frames to move relative to each other substantially in parallelism; a transfer assembly pivotally mounted on one of the frames, having at least one arm engaging the other of the frames; and spring means mounted on the one frame and connected to the transfer assembly.
  • the present invention resides in a "deceleration" or damping unit for a vehicle seat suspension unit (eg. of the type defined) including: a brake slide plate having a longitudinal slot at or adjacent one end thereof and a hole at or adjacent the other end; an anchor pin passing through the hole and mounted on one frame of the vehicle seat suspension unit; resilient ring or washer means about the anchor pin received within the hole to allow at least limited movement of the brake slide plate relative to the anchor pin; a pivot pin on a transfer assembly of the vehicle seat suspension unit passing through the slot and arranged for movement within the slot substantially parallel to the longitudinal axis of the brake slide plate; at least one brake disc or washer interposed between the transfer assembly and the brake slide plate; and means to apply a clamping or frictional load between the brake disc or washer and the brake slide plate; so arranged that when the vehicle seat suspension unit is displaced in an initial small distance from a preset position, the brake slide plate moves relative to the anchor pin to provide substantially zero damping, but on further displacement, the brake slide plate is moved relatively
  • the damping force may be selectively set by varying the damping force applied between the brake slide plate and the brake disc(s) or washer(s) .
  • Belleville springs or compression washers may be provided on the pivot pin to transfer the damping force from an adjustable nut on the pivot pin to the brake slide plate and brake disc(s) or washer(s).
  • the hole is slightly eccentric, being preferably non-circular and formed by two circles with spaced centres.
  • the present invention resides in a vehicle seat suspension unit of the type defined fitted with the "decelerator" or damping unit.
  • FIGS 1 and 2 are side views of the vehicle seat suspension unit in its raised and lowered positions, respectively;
  • FIGS 3 and 4 are sectional side views of the unit corresponding to FIGS 1 and 2, respectively, with parts omitted for clarity;
  • FIG 5 is a front view of the transfer assembly, with one of the springs and one damping unit shown in dashed lines;
  • FIG 6 is a side view corresponding to FIG 5;
  • FIG 7 is a side view of the brake plate when assembled;
  • FIG 8 is a sectional top view of the damping unit when installed.
  • the vehicle seat suspension unit 100 has a bottom frame 110 (with side rails 111) and a top frame 112 (with plate 113) interconnected by a scissor arms assembly 114 for relative movement substantially in parallelism (ie. see WO 90/11841) and WO 93/10996).
  • the bottom frame 110 is bolted to the seat slides, fixed to the vehicle floor, and the operator's seat is secured to the top frame 112 (see in particular WO 93/10996).
  • a transfer assembly 115 has a tubular body 116 journalled on an axle 116a interconnecting brackets 117 on the side rails 111 of the bottom frame 110.
  • a pair of transfer arms 118 extend from the body 116 and support the axle 119 for rollers 120 which bear on the underside of the plate 113 on the top frame 112.
  • Two springs 121 anchored at one end to the bottom frame 110, are connected to respective pairs of brackets 122 extending below the tubular body 116 of the transfer assembly 115.
  • the suspension unit 100 can be preset to a given ride height for the seat which sets a datum.
  • a respective pair of links 124 are pivotally connected to the side rails 111 of the bottom frame 110 and have pins 125 slidable in slots 126 in the side rails 127 of the top frame 112. The links 124 limit the forward displacement of the top frame 112 relative to the bottom frame 110 if the vehicle should be involved in an accident and so the links 124 assist in securing the seat from breaking away from the vehicle.
  • a respective anchor pin 11 passes through each side rail 111 of the bottom frame 110 and through a boss 12 on a bracket 117.
  • the anchor pin 11 is fitted with a nut 14.
  • the pin 11 passes through an O-ring 15 (see FIG 7) in an elongate hole 16 in a planar brake slide plate 17.
  • the hole 16 is formed by two circles with offset centres and allows limited movement of the brake slide plate 17 relative to the anchor pin 11 along the longitudinal axis of the brake slide plate 17.
  • Washers 18 may be provided to allow low friction movement of the brake plate 17 between the boss 12 and the lower end of the inner scissor arms 124 of the scissor assembly 114.
  • the lower ends of the inner scissor arms 124 are slotted, with the anchor pins 11 passing through the slots 125 and the arms 124 are supported for low friction on the anchor pins 11 by bearings 126.
  • a respective pivot pin 19, with head 20, is supported by a respective pair of brackets 127 at each end of the tubular body 16 and pass through an elongate slot 21 along the longitudinal axis of the brake slide plate 17.
  • a pair of fibre brake washers 22 are interposed between the brake slide plate 17 and brackets 127 and a damping force thereon is provided by a nut 23 and a pair of Belleville spring washers 24.
  • a constant friction is generated between the brake plate 117 and the brake washers 22.
  • the anchor pin 11 is intermediate the hole 16 in the brake slide plate 17 (see FIG 7). For small initial displacements of the suspension unit 100, the brake slide plate 17 will move relative to the anchor pin 11 without the latter engaging a side of the hole 16.
  • the decelerator or damping unit 10 provides substantially z.ero damping about the datum (ie. zero displacement) position of the suspension unit 100 but will provide substantially constant damping once a preset displacement is exceeded. This enables very high isolation of the seat from the vehicle to be achieved, whilst having only a very low spring rate in the springs 121.
  • Various changes and modifications may be made to the embodiments described and illustrated without departing from the scope of the present invention defined in the appended claims.

Landscapes

  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Seats For Vehicles (AREA)
  • Braking Arrangements (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)
  • Vehicle Body Suspensions (AREA)

Abstract

Un organe d'amortissement (10) pour organe de suspension de siège d'automobile se compose d'un plateau de frein coulissant (17) monté sur un goujon d'ancrage (11) sur un rail latéral (111) du cadre inférieur de l'organe de suspension, ledit goujon d'ancrage (11) étant logé dans un orifice non circulaire doté d'un point torique d'étanchéité (15). Un ensemble de transfert (117) comprend un pivot (19) logé dans une fente oblongue (21) située dans le plateau coulissant de frein (17), et des rondelles de frein (22) comprimées par des rondelles Belleville (24) sont serrées entre des pattes d'attache (127) placées sur l'ensemble de transfert (115) et de plateau de frein coulissant (17). Par léger déplacement par rapport à un repère prédéterminé, le plateau de frein coulissant (17) se déplace par rapport au goujon d'ancrage (11) sans qu'aucune force d'amortissement ne soit générée. Lorsqu'un degré de déplacement prédéterminé est dépassé, le goujon d'ancrage (11) retient le plateau de frein coulissant (17) et le pivot (19) se déplace dans la fente (21) de manière à générer une force d'amortissement constante entre le plateau de frein coulissant (17) et les rondelles de frein (22).
EP94911006A 1993-03-17 1994-03-17 Organe de suspension de siege d'automobile Withdrawn EP0689509A4 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AUPL7862/93 1993-03-17
AUPL786293 1993-03-17
PCT/AU1994/000134 WO1994021487A1 (fr) 1993-03-17 1994-03-17 Organe de suspension de siege d'automobile

Publications (2)

Publication Number Publication Date
EP0689509A1 true EP0689509A1 (fr) 1996-01-03
EP0689509A4 EP0689509A4 (fr) 1997-03-05

Family

ID=3776783

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94911006A Withdrawn EP0689509A4 (fr) 1993-03-17 1994-03-17 Organe de suspension de siege d'automobile

Country Status (7)

Country Link
EP (1) EP0689509A4 (fr)
JP (1) JPH08507739A (fr)
KR (1) KR960700916A (fr)
CN (1) CN1122587A (fr)
BR (1) BR9406320A (fr)
CA (1) CA2158549A1 (fr)
WO (1) WO1994021487A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7983813B2 (en) 2004-10-29 2011-07-19 Bose Corporation Active suspending
US20090198419A1 (en) * 2008-02-05 2009-08-06 Bose Corporation Suspended seat autolocking
LU92012B1 (en) * 2012-05-30 2013-12-02 Iee Sarl Vehicle seat suspension mat
EP2945812B1 (fr) * 2013-01-16 2020-12-02 Hendrickson USA, L.L.C. Amortisseur pour suspension de véhicule utilitaire lourd
US9199563B2 (en) 2013-06-04 2015-12-01 Bose Corporation Active suspension of a motor vehicle passenger seat
AU2016238278B2 (en) 2015-03-25 2019-01-17 Hendrickson Usa, L.L.C. Damping air spring and shock absorber combination for heavy-duty vehicle axle/suspension systems
AU2016261625B2 (en) 2015-05-11 2019-01-03 Hendrickson Usa, L.L.C. Air spring with damping characteristics for heavy-duty vehicles
US10696198B2 (en) * 2018-07-19 2020-06-30 Ford Global Technologies, Llc AV and transport scissor jack rear seat system

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993010996A1 (fr) * 1991-12-02 1993-06-10 Rosdon Engineering & Manufacturing Pty. Ltd. Unite de suspension pour siege de vehicule

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
No further relevant documents disclosed *
See also references of WO9421487A1 *

Also Published As

Publication number Publication date
KR960700916A (ko) 1996-02-24
EP0689509A4 (fr) 1997-03-05
BR9406320A (pt) 1995-12-26
CA2158549A1 (fr) 1994-09-29
JPH08507739A (ja) 1996-08-20
WO1994021487A1 (fr) 1994-09-29
CN1122587A (zh) 1996-05-15

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