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WO2007053101A1 - Vehicle chair frame structure - Google Patents

Vehicle chair frame structure Download PDF

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Publication number
WO2007053101A1
WO2007053101A1 PCT/SE2006/050384 SE2006050384W WO2007053101A1 WO 2007053101 A1 WO2007053101 A1 WO 2007053101A1 SE 2006050384 W SE2006050384 W SE 2006050384W WO 2007053101 A1 WO2007053101 A1 WO 2007053101A1
Authority
WO
WIPO (PCT)
Prior art keywords
frame
backrest
frame structure
extension
cylinder
Prior art date
Application number
PCT/SE2006/050384
Other languages
French (fr)
Inventor
Krister Lindquist
Kenneth Söder
Johan KNÄLMANN
Olov Karlsson
Original Assignee
Scania Cv Ab (Publ)
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 Scania Cv Ab (Publ) filed Critical Scania Cv Ab (Publ)
Priority to DE112006002984T priority Critical patent/DE112006002984T5/en
Publication of WO2007053101A1 publication Critical patent/WO2007053101A1/en

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
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/028—Elastically mounted back-rests
    • 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
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/0224—Non-manual adjustments, e.g. with electrical operation
    • 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
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/04—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable
    • B60N2/16—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable height-adjustable
    • B60N2/18—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable height-adjustable the front or the rear portion of the seat being adjustable, e.g. independently of each other
    • B60N2/1807—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable height-adjustable the front or the rear portion of the seat being adjustable, e.g. independently of each other characterised by the cinematic
    • B60N2/1821—Combination of Rods and slides
    • 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
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/04—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable
    • B60N2/16—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable height-adjustable
    • B60N2/18—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable height-adjustable the front or the rear portion of the seat being adjustable, e.g. independently of each other
    • B60N2/1807—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable height-adjustable the front or the rear portion of the seat being adjustable, e.g. independently of each other characterised by the cinematic
    • B60N2/1835—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable height-adjustable the front or the rear portion of the seat being adjustable, e.g. independently of each other characterised by the cinematic pivoting about an axis located in the front
    • 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
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/04—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable
    • B60N2/16—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable height-adjustable
    • B60N2/18—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable height-adjustable the front or the rear portion of the seat being adjustable, e.g. independently of each other
    • B60N2/185—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable height-adjustable the front or the rear portion of the seat being adjustable, e.g. independently of each other characterised by the drive mechanism
    • B60N2/1853—Linear actuator, e.g. screw mechanism
    • 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
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/22—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable
    • B60N2/23—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable by linear actuators, e.g. linear screw mechanisms
    • 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
    • B60N2/52—Seat suspension devices using fluid means
    • 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
    • B60N2/68—Seat frames

Definitions

  • This invention relates to a vehicle chair frame structure comprising a seat cushion frame pivoted to a seat bottom support and a backrest frame about respective forward and rearward horizontal transverse axes.
  • a vehicle chair frame structure of the above referenced kind is disclosed, for example in GB 2099691 A .
  • Truck seats are usually provided with a spring suspension to shield the seat occupants from excessive vertical movements of the truck driver's cabin.
  • the spring suspension is often implemented in an articulated suspension mechanism in the seat bottom support that provides a vertical cushioning action to the seat including the backrest.
  • the suspension mechanism will inevitably have to be relatively massive and bulky.
  • a recent trend of securing the high anchor points of the seat belts in the backrest frame puts still higher demands on the strength of the structure.
  • the vertical movements of the seat can also impair driving safety, as a sudden downward movement of the seat may easily result in a distracted driver's lower leg accidentally pushing the foot towards the accelerator or brake pedal.
  • the backrest frame comprises a resiliently compressible extension pivoted to the seat bottom support about a third horizontal transverse axis.
  • the compressible extension can serve the functions of both an improved seat spring suspension and an efficient support for the backrest frame.
  • the spring suspension provided by the resiliently compressible backrest extension makes the seat cushion frame pivotable only, about the forward joint to the seat bottom support.
  • the forward end of the seat cushion will thereby be subjected to negligible movements only that do not adversely affect the driver's lower legs while the rearward sections of the seat may swing considerably up and down.
  • Also beneficial for driving safety is that the driver's head and eyes will not move as much up and down as in a swinging conventional spring-suspended seat; driver's head and eyes will rather closely follow a shallow upper section of a circular path having its center at the above mentioned forward joint.
  • the backrest frame support provided by the extension allows the backrest frame to withstand substantial impact forces and confidently hold a high anchor point for a seat belt.
  • the extension is part of a cylinder-rod assembly comprising the portion of the rod extending out of the assembly together with a portion of the cylinder.
  • the backrest frame may then comprise the remaining cylinder or piston chamber of the cylinder-rod assembly and also form the cylinder, to thereby function both as a structural element of the seat and an integral part of the seat suspension assembly.
  • the cylinder-rod assembly may optionally be reversed, by the extension comprising also the cylinder of the assembly.
  • a separate cylinder-rod unit may, however, alternatively also be supported by the backrest frame.
  • the inclination of the backrest frame may conveniently be adjusted by the provision of means such as a linear electric or fluid actuator in the seat bottom support for moving the bottom end of the extension forward and rearward.
  • Fig. 1 is a rotated model view of a vehicle chair having a seat frame structure according to the invention
  • Fig. 2 is a diagrammatic side view showing a seat frame structure according to the invention in an unloaded state
  • Fig. 3 is a view corresponding to Fig. 2 showing the frame structure in a state weighed down as by a sitting person
  • Fig. 4 is a view corresponding to Fig. 2 showing a modified frame structure in an unloaded state and having the backrest inclined rearwards.
  • the seat frame structure 10 shown in the drawings comprises a seat cushion frame 20, a seat bottom support 30 and a backrest frame 40.
  • the seat cushion frame 20 comprises a pair of spaced longitudinal, generally horizontal bars
  • the seat bottom support 30 comprises a framework that also includes a pair of spaced longitudinal bars 32 connected to respective forward verticjaMDars 34 and interconnected by a number of transverse bars 38.
  • Inclined struts 36 extending between the respective longitudinal and vertical bars 32 and 34 act as supports for the vertical bars 34.
  • the backrest frame 40 comprises a spaced pair of generally vertically inclined backrest beams or bars 42 interconnected by a top transverse bar 44 and adapted to support a backrest 54.
  • the backrest frame 40 also has a resiliently compressible extension 46.
  • the extension 46 that makes the backrest frame 40 capable of withstanding substantial forward and backward forces, comprises a pair of retractable rods 48 such as piston rods supported slidably and spring-biased downwards, for example by gas springs, in the respective backrest bars 42, which thereby form cylinders for the piston rods 48.
  • each piston rod 48 may alternatively be included in a seat spring suspension assembly similar to those commonly used in office chairs and comprising a separate cylinder-rod suspension unit 50 such as a gas spring unit received in the respective backrest bar 42.
  • the retractable extension 46 needs not necessarily be retractable into the backrest frame 40.
  • An optional, reversed arrangement of a cylinder-rod suspension unit 52 (Fig. 4) may be suitable for purposes of possibly shifting volume, weight, and components from the backrest bars 40 to the bottom support 30.
  • the seat cushion frame 20, seat bottom support 30 and backrest frame 40 are pivotally interconnected as follows.
  • the seat cushion frame 20 is pivoted about a transverse horizontal axis by forward joints A to a front top end of the seat bottom support 30, namely to respective top ends of the vertical bars 34. Rearwards, the seat cushion frame 20 is pivoted about a transverse horizontal axis by joints B to the seat frame 40, namely to respective bottom portions of the backrest bars .. ⁇ 2 ⁇ F
  • the bottom support 30 is adapted for being slidably attached to a pair of slide rails 62 (only one is shown) of a vehicle compartment floor structure 60 to allow forward or rearward adjustment of the chair frame structure 10.
  • the chair frame structure 10 is made adjustable as follows, with reference to Figs. 2-4.
  • the seat bottom support 30 is connected to an actuator 70, such as a linear electric or fluid actuator secured to the floor structure 60 and capable of pushing and pulling the bottom support 30, for example via a rod 72, in a well-known manner along the rails 62 to positions controlled by the person occupying the seat structure 10.
  • an actuator 70 such as a linear electric or fluid actuator secured to the floor structure 60 and capable of pushing and pulling the bottom support 30, for example via a rod 72, in a well-known manner along the rails 62 to positions controlled by the person occupying the seat structure 10.
  • each joint C is mounted to a respective telescoping member 76 axially displaceable relative to the respective longitudinal bar 32 of the bottom support 30.
  • a backrest inclination actuator 74 such as a linear electric or fluid actuator connected between the slidable bottom support 30 and members 76, is provided for displacing members 76 forward and backward along the rails 62 to thereby adjust the inclination of the backrest frame 40.
  • another linear actuator may be provided to raise and lower joints A relative to the vertical bars 34 via any suitable mechanism, for example a screw or cam mechanism (not shown).
  • the above-mentioned units 50 may be slidably received in the respective backrest bar 42 and be movably adjusted along bar 42 by still another linear actuator (not shown).
  • the latter height may also be adjusted by varying, for example a pre-load (or volume) of the (gas) spring acting on each rod 48 (not shown).
  • T ⁇ lastic and cushioning properties of the suspension units 50, 52 may be controlled for example by a fluid power control system in a vehicle where the vehicle chair frame structure 10 is installed (not shown).
  • the extension 46 needs not necessarily be in line with the backrest frame 40 but may alternatively be curved or elbowed to or from the seat bottom support, for example for saving space or to obtain a desired angular movement path of the backrest (not shown).

Landscapes

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

Abstract

A vehicle chair frame structure (10) comprising a seat cushion frame (20) pivoted to a seat bottom support (30) and a backrest frame (40) about respective forward and rearward horizontal transverse axes (A, B). The backrest frame (40) comprises a resiliently compressible extension (46) pivoted to the seat bottom support (30) about a third horizontal transverse axis (C) and serving both as a seat suspension spring and a backrest frame support.

Description

Description
Vehicle chair frame structure
Technical field
[0001] This invention relates to a vehicle chair frame structure comprising a seat cushion frame pivoted to a seat bottom support and a backrest frame about respective forward and rearward horizontal transverse axes.
Background art
[0002] A vehicle chair frame structure of the above referenced kind is disclosed, for example in GB 2099691 A .
[0003] Truck seats are usually provided with a spring suspension to shield the seat occupants from excessive vertical movements of the truck driver's cabin. The spring suspension is often implemented in an articulated suspension mechanism in the seat bottom support that provides a vertical cushioning action to the seat including the backrest. In order to withstand for example vehicle impact forces, the suspension mechanism will inevitably have to be relatively massive and bulky. A recent trend of securing the high anchor points of the seat belts in the backrest frame puts still higher demands on the strength of the structure. Further, the vertical movements of the seat can also impair driving safety, as a sudden downward movement of the seat may easily result in a distracted driver's lower leg accidentally pushing the foot towards the accelerator or brake pedal.
Disclosure of the invention [0004] An object of the invention is to address the above issues of the prior art and provide an improved uncomplicated, low-weight, strong and safe vehicle chair frame structure. [0005] This and other objects of the invention are obtained by the features of the appended claims. [0006] In an aspect of the invention, the backrest frame comprises a resiliently compressible extension pivoted to the seat bottom support about a third horizontal transverse axis. [0007] Thereby, in a manner saving weight and reducing components, the compressible extension can serve the functions of both an improved seat spring suspension and an efficient support for the backrest frame.
[0008] The spring suspension provided by the resiliently compressible backrest extension makes the seat cushion frame pivotable only, about the forward joint to the seat bottom support. The forward end of the seat cushion will thereby be subjected to negligible movements only that do not adversely affect the driver's lower legs while the rearward sections of the seat may swing considerably up and down. Also beneficial for driving safety is that the driver's head and eyes will not move as much up and down as in a swinging conventional spring-suspended seat; driver's head and eyes will rather closely follow a shallow upper section of a circular path having its center at the above mentioned forward joint.
[0009] The backrest frame support provided by the extension allows the backrest frame to withstand substantial impact forces and confidently hold a high anchor point for a seat belt.
[0010] In an embodiment of the invention, the extension is part of a cylinder-rod assembly comprising the portion of the rod extending out of the assembly together with a portion of the cylinder. The backrest frame may then comprise the remaining cylinder or piston chamber of the cylinder-rod assembly and also form the cylinder, to thereby function both as a structural element of the seat and an integral part of the seat suspension assembly.
[0011] The cylinder-rod assembly may optionally be reversed, by the extension comprising also the cylinder of the assembly.
[0012] A separate cylinder-rod unit may, however, alternatively also be supported by the backrest frame.
[0013] The inclination of the backrest frame may conveniently be adjusted by the provision of means such as a linear electric or fluid actuator in the seat bottom support for moving the bottom end of the extension forward and rearward.
[0014] Other features and advantages of the invention will be apparent from the detailed description and the appended claims. Brief description of the drawings
[0015] Fig. 1 is a rotated model view of a vehicle chair having a seat frame structure according to the invention; [0016] Fig. 2 is a diagrammatic side view showing a seat frame structure according to the invention in an unloaded state; [0017] Fig. 3 is a view corresponding to Fig. 2 showing the frame structure in a state weighed down as by a sitting person; and [0018] Fig. 4 is a view corresponding to Fig. 2 showing a modified frame structure in an unloaded state and having the backrest inclined rearwards. Mode(s) for carrying out the invention [0019] The seat frame structure 10 shown in the drawings comprises a seat cushion frame 20, a seat bottom support 30 and a backrest frame 40. [0020] In the exemplary model embodiment shown in Fig. 1 , the seat cushion frame 20 comprises a pair of spaced longitudinal, generally horizontal bars
22 adapted to support a seat cushion 24. [0021] The seat bottom support 30 comprises a framework that also includes a pair of spaced longitudinal bars 32 connected to respective forward verticjaMDars 34 and interconnected by a number of transverse bars 38.
Inclined struts 36 extending between the respective longitudinal and vertical bars 32 and 34 act as supports for the vertical bars 34.
[0022] The backrest frame 40 comprises a spaced pair of generally vertically inclined backrest beams or bars 42 interconnected by a top transverse bar 44 and adapted to support a backrest 54.
[0023] In the embodiment disclosed in Fig. 1 , according to the invention, the backrest frame 40 also has a resiliently compressible extension 46. The extension 46, that makes the backrest frame 40 capable of withstanding substantial forward and backward forces, comprises a pair of retractable rods 48 such as piston rods supported slidably and spring-biased downwards, for example by gas springs, in the respective backrest bars 42, which thereby form cylinders for the piston rods 48.
[0024] As indicated in Figs. 2 and 3, each piston rod 48 may alternatively be included in a seat spring suspension assembly similar to those commonly used in office chairs and comprising a separate cylinder-rod suspension unit 50 such as a gas spring unit received in the respective backrest bar 42.
[0025] The retractable extension 46 needs not necessarily be retractable into the backrest frame 40. An optional, reversed arrangement of a cylinder-rod suspension unit 52 (Fig. 4) may be suitable for purposes of possibly shifting volume, weight, and components from the backrest bars 40 to the bottom support 30.
[0026] While the disclosed embodiments have a twin-extension 46, 46, it would be obvious to a skilled person to modify the extension to a single- extension (not shown).
[0027] The seat cushion frame 20, seat bottom support 30 and backrest frame 40 are pivotally interconnected as follows.
[0028] The seat cushion frame 20 is pivoted about a transverse horizontal axis by forward joints A to a front top end of the seat bottom support 30, namely to respective top ends of the vertical bars 34. Rearwards, the seat cushion frame 20 is pivoted about a transverse horizontal axis by joints B to the seat frame 40, namely to respective bottom portions of the backrest bars ..^2^ F|naπy_,Jhe_extension 46 is pivoted about a third horizontal transverse axis by downward joints C, located underneath the seat cushion frame 20, to the bottom support 30, namely to respective rear end portions of bottom support 30.
[0029] As indicated in the diagrammatic views of Figs. 2-4, the bottom support 30 is adapted for being slidably attached to a pair of slide rails 62 (only one is shown) of a vehicle compartment floor structure 60 to allow forward or rearward adjustment of the chair frame structure 10.
[0030] While a person skilled in the art will be able to conceive many different embodiments for manual or power assisted adjustment of a chair frame structure according to the invention, in the exemplary embodiments disclosed herein, the chair frame structure 10 is made adjustable as follows, with reference to Figs. 2-4.
[0031] The seat bottom support 30 is connected to an actuator 70, such as a linear electric or fluid actuator secured to the floor structure 60 and capable of pushing and pulling the bottom support 30, for example via a rod 72, in a well-known manner along the rails 62 to positions controlled by the person occupying the seat structure 10.
[0032] For adjusting the inclination of the backrest 40, each joint C is mounted to a respective telescoping member 76 axially displaceable relative to the respective longitudinal bar 32 of the bottom support 30. A backrest inclination actuator 74, such as a linear electric or fluid actuator connected between the slidable bottom support 30 and members 76, is provided for displacing members 76 forward and backward along the rails 62 to thereby adjust the inclination of the backrest frame 40.
[0033] For adjusting the height of the forward end of the seat cushion frame 20, another linear actuator may be provided to raise and lower joints A relative to the vertical bars 34 via any suitable mechanism, for example a screw or cam mechanism (not shown). For adjusting the height of the rearward end of the seat cushion frame 20, the above-mentioned units 50 may be slidably received in the respective backrest bar 42 and be movably adjusted along bar 42 by still another linear actuator (not shown). The latter height may also be adjusted by varying, for example a pre-load (or volume) of the (gas) spring acting on each rod 48 (not shown).
[00347 TΞlastic and cushioning properties of the suspension units 50, 52 may be controlled for example by a fluid power control system in a vehicle where the vehicle chair frame structure 10 is installed (not shown).
[0035] The extension 46 needs not necessarily be in line with the backrest frame 40 but may alternatively be curved or elbowed to or from the seat bottom support, for example for saving space or to obtain a desired angular movement path of the backrest (not shown).
[0036] The foregoing detailed description is given primarily for clearness of understanding and no unnecessary limitations are to be understood therefrom. Modifications will become obvious to those skilled in the art upon reading this disclosure and may be made without departing from the spirit of the invention or the scope of the appended claims.

Claims

Claims
1. A vehicle chair frame structure (10) comprising a seat cushion frame (20) pivoted to a seat bottom support (30) and a backrest frame (40) about respective forward and rearward horizontal transverse axes (A, B), the backrest frame (40) comprising a resiliently compressible extension (46) pivoted to the seat bottom support (30) about a third horizontal transverse axis (C).
2. The frame structure according to claim 1 , wherein the extension (46) is part of a cylinder-rod assembly (42, 48; 50; 52).
3. The frame structure according to claim 2, wherein the extension comprises a rod extension (46) of the cylinder-rod assembly (42, 48; 50; 52).
4. The frame structure according to any of claims 2 and 3, wherein the backrest frame (40) comprises a cylinder (42) of the cylinder-rod assembly (42, 48; 50).
5. The frame structure according to claim 4, wherein the backrest frame (40) forms a cylinder (42) of the cylinder-rod assembly (46, 48).
6. The frame structure according to any of claims 2 and 3, wherein the extension (46) comprises a cylinder of the cylinder-rod assembly (52).
Figure imgf000008_0001
backrest frame (40) comprises a pair of transversally spaced backrest bars (42), each bar (42) being provided with a respective of said extension (46).
8. The frame structure according to any of the previous claims, further comprising means (74, 76) in the seat bottom support (30) for moving a downward pivot joint (C) of the extension (46) forward and rearward to thereby adjust an inclination of the backrest frame (40).
9. A vehicle chair provided with a frame structure (10) according to any of the previous claims.
PCT/SE2006/050384 2005-11-04 2006-10-05 Vehicle chair frame structure WO2007053101A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE112006002984T DE112006002984T5 (en) 2005-11-04 2006-10-05 A vehicle seat frame construction

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE0502455-9 2005-11-04
SE0502455A SE0502455L (en) 2005-11-04 2005-11-04 Frame construction for a vehicle seat

Publications (1)

Publication Number Publication Date
WO2007053101A1 true WO2007053101A1 (en) 2007-05-10

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PCT/SE2006/050384 WO2007053101A1 (en) 2005-11-04 2006-10-05 Vehicle chair frame structure

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DE (1) DE112006002984T5 (en)
SE (1) SE0502455L (en)
WO (1) WO2007053101A1 (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE530558C2 (en) 2006-11-08 2008-07-08 Scania Cv Abp vehicle Seat
SE530557C2 (en) 2006-11-08 2008-07-08 Scania Cv Abp vehicle Seat
SE530559C2 (en) * 2006-11-08 2008-07-08 Scania Cv Abp Backrest frame and slide bearing unit
SE530679C2 (en) * 2006-12-15 2008-08-12 Scania Cv Abp Vehicle seat with full simultaneous position adjustment
SE530343C2 (en) * 2006-12-15 2008-05-06 Scania Cv Abp vehicle Seat
SE530680C2 (en) * 2006-12-15 2008-08-12 Scania Cv Abp vehicle Seat
DE102010033028B4 (en) 2010-08-02 2014-02-27 Grammer Aktiengesellschaft Vehicle vibration device with a horizontal suspension device
DE102010033419A1 (en) 2010-08-04 2012-02-09 Grammer Aktiengesellschaft Horizon spring device for vehicle seats with elastomer spring element with progressive spring characteristic
DE102010051326A1 (en) 2010-08-31 2012-03-01 Grammer Aktiengesellschaft Vehicle seat for vehicles
DE102010052619A1 (en) 2010-11-29 2012-05-31 Grammer Aktiengesellschaft Vehicle seat with guided scissor arms
DE102010053752A1 (en) 2010-12-08 2012-06-14 Grammer Aktiengesellschaft Vehicle vibration device for vehicle seats or vehicle cabins
DE102010054749B4 (en) 2010-12-15 2013-10-24 Grammer Aktiengesellschaft Suspension device for vehicle seats and / or vehicle cabins with elastomeric element
DE102011053647B4 (en) * 2011-09-15 2022-02-03 Grammer Aktiengesellschaft Vehicle seat with a suspension device and motor vehicle
DE102012108641B4 (en) * 2012-09-14 2014-07-24 Grammer Ag Seat with a locking device
DE102015113176B4 (en) 2015-08-10 2021-12-30 Grammer Aktiengesellschaft Horizontal vibration device for a vehicle seat

Citations (2)

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Publication number Priority date Publication date Assignee Title
US4353594A (en) * 1978-09-01 1982-10-12 Uop Inc. Vehicle seats
EP0133115A1 (en) * 1983-07-21 1985-02-13 Regie Nationale Des Usines Renault Adjustable seat for a motor vehicle

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Publication number Priority date Publication date Assignee Title
FR2506693A1 (en) 1981-05-26 1982-12-03 Faure Bertrand IMPROVEMENTS ON VEHICLE SEATS WITH TILT ADJUSTABLE BACKREST

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4353594A (en) * 1978-09-01 1982-10-12 Uop Inc. Vehicle seats
EP0133115A1 (en) * 1983-07-21 1985-02-13 Regie Nationale Des Usines Renault Adjustable seat for a motor vehicle

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SE528475C2 (en) 2006-11-21
SE0502455L (en) 2006-11-21
DE112006002984T5 (en) 2008-10-09

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