WO2009095356A1 - Siège surbaissé pour un véhicule - Google Patents

Siège surbaissé pour un véhicule Download PDF

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Publication number
WO2009095356A1
WO2009095356A1 PCT/EP2009/050786 EP2009050786W WO2009095356A1 WO 2009095356 A1 WO2009095356 A1 WO 2009095356A1 EP 2009050786 W EP2009050786 W EP 2009050786W WO 2009095356 A1 WO2009095356 A1 WO 2009095356A1
Authority
WO
WIPO (PCT)
Prior art keywords
seat
low profile
telescopic shafts
vibrations
profile seat
Prior art date
Application number
PCT/EP2009/050786
Other languages
English (en)
Inventor
David Suter
Eskil Suter
Original Assignee
Code-X Ag
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 Code-X Ag filed Critical Code-X Ag
Priority to DE202009017959U priority Critical patent/DE202009017959U1/de
Publication of WO2009095356A1 publication Critical patent/WO2009095356A1/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
    • B60N2/02—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
    • B60N2/14—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 rotatable, e.g. to permit easy access
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
    • B60N2/42—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles the seat constructed to protect the occupant from the effect of abnormal g-forces, e.g. crash or safety seats
    • B60N2/4207—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles the seat constructed to protect the occupant from the effect of abnormal g-forces, e.g. crash or safety seats characterised by the direction of the g-forces
    • B60N2/4242—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles the seat constructed to protect the occupant from the effect of abnormal g-forces, e.g. crash or safety seats characterised by the direction of the g-forces vertical
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/50—Seat suspension devices
    • B60N2/501—Seat suspension devices actively controlled suspension, e.g. electronic control
    • 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
    • B60N2/503—Seat suspension devices attached to the backrest
    • 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
    • B60N2/509—Seat guided by slides or the like
    • 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
    • B60N2/522—Seat suspension devices using fluid means characterised by dampening 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
    • B60N2/50—Seat suspension devices
    • B60N2/52—Seat suspension devices using fluid means
    • B60N2/525—Seat suspension devices using fluid means using gas
    • 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
    • B60N2/527—Seat suspension devices using fluid means using liquids

Definitions

  • the invention relates to a low profile seat for a vehicle providing increased comfort, stability and safety in extreme conditions.
  • Tanks and other all terrain vehicles travelling on uneven terrain with bumps and hills are often subjected to shocks and vibrations too due the hard impacts resulting of driving in such terrains.
  • Generally all these vehicles are subject to extreme decelerations of up to 10 G, which can cause serious back and spine injuries, in certain cases immediate loss of consciousness or even death.
  • the present invention achieves the above mentioned objectives by attaching a seat shell to a base disk fixed to the vehicle using an intermediary mounting means, which comprises at least two symmetrically arranged telescopic shafts, arrangement which is able to damp and/ or absorb both vertical and lateral shocks and vibrations the vehicle is subjected to.
  • an intermediary mounting means which comprises at least two symmetrically arranged telescopic shafts, arrangement which is able to damp and/ or absorb both vertical and lateral shocks and vibrations the vehicle is subjected to.
  • the telescopic arrangement runs behind the backrest of the seat, and as opposed to previously known seats, the seat is connected with the telescopic arrangement at the upper portion of the backrest only thus maximizing the length of the telescopic shafts and minimizing the required distance between the seat and the floor.
  • the main advantage of employment of a symmetrical telescopic arrangement is the ability of the arrangement of telescopes to absorb both vertical and lateral shocks.
  • the telescopes have also the advantage that they can be adjusted to achieve the right balance between protection of the occupant and sufficiently firm support for providing a constantly safe driving position under all conditions.
  • Positioning the telescopes behind the backrest of the seat and suspending the seat from the end of the telescopes offers the main advantage that the telescopes can be made significantly longer as compared to known solutions where they would be placed underneath the seat, and the further advantage that the space required below the seat is minimized.
  • Telescopic mounting of the seat shell also provides the possibility of adjusting the relative height of the seat in relation to the floor, without the use of additional structural elements just for the height adjustment.
  • the embodiment where the base disk is a rotary disk presents the further advantage that the entire seat together with the mounting means can be rotated around its axis to accommodate a high variety of seating positions and providing an even greater comfort and flexibility.
  • Figure 1 An exploded perspective view of the preferred embodiment of the seat according to the present invention, shoving the main structural parts of the seat;
  • FIG. 1 A perspective view showing the seating shell and its subcomponents according to the present invention
  • FIG. 3 A perspective view showing mounting means of the seat according to the present invention.
  • Figure 4A A side view showing the low profile seat according to the present invention, with telescopic shafts situated behind the backrest of the seat shell, said seat shell being suspended from the upper part of the telescopic shafts via a suspending element connected by a fixation element;
  • Figure 4B A side view showing an angularly adjustable embodiment of the fixation element complemented by a pitch stabilizer telescope
  • Figure 5A A rear view showing the low profile seat according to the present invention, with telescopic shafts situated behind the backrest of the seat shell, said seat shell being suspended from the upper part of the telescopic shafts via a suspending element connected by a fixation element;
  • Figure 5B A rear view showing the low profile seat with a further embodiment of the base disk and its comprising means compensating tilting movements of the base disk;
  • Figure 5C A rear view showing the low profile seat with a further embodiment of the suspending element and the base disk and its comprising means compensating lateral shifts of the base disk;
  • Figure 5D A rear view showing the low profile seat with a further embodiment of the suspending element and the base disk and its comprising means compensating lateral shifts of the base disk further comprising a pair of transversal telescopes;
  • FIG. 6 A perspective view showing a further embodiment of the mounting means of the seat according to the present invention. Detailed Description
  • the preferred embodiment of the seat 10 according to the present invention consists of two main structural parts, as illustrated in the exploded view of figure 1. These two main structural parts are the seat shell 11 and the mounting means 19.
  • the seat shell 11 comprises a sitting area 12 and a backrest 13, both made of materials suitable for a comfortable seating but at the same time providing sufficient firmness.
  • the materials chosen should also fit the interior of the vehicle they are intended for. In certain cases leather and other high quality materials are preferred, while on the other hand practical, very durable but less sophisticated materials might be needed in extreme environments.
  • Both sitting area 12 and backrest 13 are designed to fit the exact environment they are intended to be used in. For example marine environments such as the use in boats require the materials to be water resistant and the seat shell 11 to have hollow areas that allow water to drop.
  • a seat shell 11 for use in cold environments for instance needs to provide protection from winds and moisture, thus the presence of hollow ventilated areas is to be avoided. Additionally heating elements can also be integrated for additional comfort.
  • the ergonomic shape of the sitting area 12 and the backrest 13 also need to be mentioned. These are designed specially to provide the required comfort and support that is needed under extreme conditions.
  • the seat shell 11 is provided with lateral supports 14.
  • These lateral supports 14 can be separate parts of the seat shell 11 or can form an integral part of the sitting area 12 and/ or the backrest 13.
  • the exact shape and dimensions of the lateral supports 14 are determined according to the exact needs of the actual use of the seating shell 11.
  • the lateral supports 14 together with the backrest 13 and the sitting area 12 help form a shell to accommodate the occupant and provide him/ her protection in all directions.
  • the use of lateral supports 14 is usually mandatory since at high speeds significant lateral forces occur due to the centripetal and centrifugal forces that may arise.
  • the lateral supports 14 have a further very significant role, i.e.
  • FIG 3 shows the second main structural part of the seat 10, i.e. the mounting means 19.
  • the mounting means 19 comprises at least two parallel telescopic shafts 17 in an approximately upright position.
  • Each telescopic shaft 17 comprises a lower element 17.1 and an upper element 17.2, being connected in such a way that the upper element 17.2 is able to perform a relative shifting movement with respect to the lower element 17.1. This shifting movement is damped providing for the resilient mounting of the seat shell 11.
  • a wide array of telescopes can be used as telescopic shafts 17 as part of the mounting means 19.
  • Hydraulic and pneumatic telescopes and telescopes with springs inside or outside can all be used as long as they can offer the sufficient damping and protection required for the telescopic shafts 17 to provide in order to ensure a comfortable ride and at the same time a continuously safe operating position for occupants of the vehicle the seat 10 is mounted in.
  • a combination of damping solutions, like a hydraulic telescope with an additional spring is also preferred.
  • the main requirement of the telescopic shafts 17 is for them to have a progressive degree of stiffness, i.e. the bigger the compression of the shaft the stiffer the shaft gets. This assures that the telescopic shafts 17 are responsive and thus are capable of damping weak vibrations but at the same time they are not destroyed or fully compressed to the limit where they would "hit bottom" even by hard shocks.
  • an active monitoring and damper adjustment system is being employed to constantly monitor the vibrations and shocks the seat 10 is subjected to and to automatically adjust the degree of stiffness of the telescopic shafts 17 accordingly by employing a stiffness regulating device.
  • the system is a real time control system that reacts to shocks and adjusts the properties of the telescopic shafts 17 accordingly.
  • This active monitoring and damper adjustment system comprises an accelerometer which can measure sudden shocks/ vibrations, control electronics which receive the signal from the accelerometer and which, in reaction to said signals, control the stiffness regulating device accordingly.
  • the stiffness regulating device has two alternative embodiments:
  • the degree of stiffness of the telescopic shafts 17 can be adjusted by controlling a specially calibrated orifice bypass system, thus precisely calibrating the pressure inside the telescopic shaft 17, which allows simultaneous adjustment of both compression and rebound. This method also results in precision and consistent adjustment;
  • the degree of stiffness of the telescopic shafts 17 is adjusted by using an electromagnetically reactive medium inside the telescopes that changes its viscosity in reaction to an electromagnetic field applied to it and thus altering the degree of stiffness of the telescopic shafts 17 accordingly.
  • This embodiment is especially preferred, since in a real-time damper adjustment system a quick change in the degree of stiffness of the telescopic shaft 17 is needed.
  • the telescopic shafts 17 have adjustable length, thus providing for an adjustable mounting height for the seat 10 relative to the floor of the vehicle, without the use of additional structural elements just for the height adjustment.
  • the mounting means 19 comprise two identical, symmetrically arranged telescopic shafts 17. This allows the arrangement to absorb shocks in a symmetrical way, no matter the direction these shocks come from.
  • a symmetrical arrangement of the telescopic shafts 17 provide a perfect balancing of the weight of the seat shell 11 and of the forces that arise.
  • the mounting means 19 further comprises a base disk 15.
  • This part has the role of fixing the entire seat 10 to the vehicle and at the same time to allow the seat 10 to rotate around an axis of rotation Rl.
  • the base disk 15 is preferably provided with high load bearings to allow a smooth rotation while securing the seat 10 reliably.
  • the base disk 15 can be secured in a chosen position by securing means.
  • This securing means is designed so that, when engaged, the seat 10 is firmly fixed without any rotation allowed. This is especially important for the seat 10 of the operator of the vehicle since, while moving, this seat 10 should preferably be secured to face forward.
  • the means for securing can be easily disengaged in order to allow a free rotation of the seat 10.
  • This means for securing is either a lever that blocks into a corresponding hole in a part of the rotation disk 15 fixed to the ground or it is exercising pressure against this part of the rotation disk 15 fixed to the ground to such a degree that a rotation is no longer possible.
  • the base disk 15 is further provided with means 16 for receiving the telescopic shafts 17. These means are adapted to the specific telescopic shafts 17 used and are provided in the form of cylindrical rings or recesses with inner diameters matched to the outer diameter of the lower element 17.1 of the telescopic shafts 17.
  • Figure 4A shows a side view of the low profile seat 10 according to the present invention, with the telescopic shafts 17 situated behind the backrest 13 of the seat, said seat shell 11 being suspended from the upper part of the telescopic shafts 17 via a suspending element 18 connected by a fixation element 18.3.
  • This figure depicts very well the most essential feature of the present invention, i.e. the fact that the length of the telescopic shafts 17 is maximized while the required space underneath the seat shell 11 is minimized.
  • the telescopic shafts 17 can be made significantly longer as compared to previously known seats where the telescopes are placed between the bottom of the seat and the floor. In an extreme case, the length of the telescopes can be as long as the distance of the seat from the floor and the height of the backrest together.
  • Having a long telescopic shaft 17 supporting the seat shell 11 has the advantage that the damping in the vertical longitudinal direction vl provided by such telescopic shafts 17 can be much smoother and by having significantly more space, there is a lot more flexibility in their designs as compared to the short telescopes that are placed under conventional seats.
  • An increased length of the telescopic shafts 17 means that a much longer relative shifting movement of the upper elements 17.2 in relation to the lower elements 17.1 can be provided, such an increased shifting movement providing increased comfort and the possibility to efficiently damp increased levels of vibrations or shocks. All-in all, this arrangement allows the seat to have a very low profile which is a very important requirement in vehicles where the seating position has to be as low as possible, for keeping the centre of gravity low for example.
  • the ratio of the length of the relative shifting movement of the telescopic shaft 17 and the required distance between the bottom of the seat 10 and the floor is greatly increased, said space need not be any larger than the allowed vertical movement of the seat.
  • this ratio can be as low as V ⁇ i.e. for example for relative shifting movement of 150mm, up to 300mm of space is required under the seat.
  • this ratio is 1, i.e. for example for relative shifting movement of 150mm, no more than 150mm of space is required under the seat.
  • the ratio of the length of the telescope as compared to the provided relative shifting movement can also be greatly increased.
  • this ratio is limited by the space underneath the seat, for example, in a conventional bus seat, a 150mm damping is provided by a 300mm telescope as opposed to a telescope of even 1000m or more for the same relative shifting movement of 150mm.
  • said ratio can be increased from 2 in conventional seats to even 10 according to the present invention.
  • the increase of these aforementioned ratios provides a great flexibility in choosing or designing the appropriate telescopes and allows the use of progressively stiffening telescopes which are usually quite long as compared to conventional telescopes.
  • FIG 4A also shows a first view of the suspending element 18 according to the present invention.
  • This suspending element 18 is preferably positioned on the upper ends of the upper elements 17.2 of the telescopic shafts 17.
  • the suspending element 18 is provided with tubular recesses 18.1 which receive the upper ends of the upper elements 17.2 of the telescopic shafts 17. Upon assembly, these tubular recesses 18.1 will slide on the upper elements 17.2 of the telescopic shafts 17 and having an inner diameter corresponding to the outer diameter of the upper elements 17.2, the suspending element 18 will sit firmly on top of the telescopic shafts 17.
  • a side view of the comprising means 16 can also be seen on figure 4A.
  • the comprising means 16 are tubular recesses in the base disk 15, being tilted in an angle that corresponds to the angle of the telescopic shafts 17 and having an inner diameter corresponding to the outer diameter of the lower elements 17.1 of the telescopic shafts 17, thus providing a firm fixation for the telescopic shafts 17.
  • the fixation element 18.3 is rotatable so that the angle between the backrest 13 of the seat shell 11 and the telescopic shafts 17 can be freely adjusted. This is achieved by a fixation element 18.3 comprising pivoting points around which it can rotate.
  • the suspending element 18 further comprises at least one pitch stabilizer telescope 22 that allows said angle to be preset while providing a horizontal damping effect as well. Said pitch stabilizer telescope 22 is connected on one end to the seat shell 11 and at the other end to the telescopic shaft 17, preferably to its upper element 17.2.
  • a pair of pitch stabilizer telescopes 22 is fixed, one pitch stabilizer telescope 22 on each side of the seat shell 11.
  • the pitch stabilizer telescope 22 not only allows the angle of the seat shell 11 to be set but is also able to provide additional damping of vibrations in the direct rotational direction rl and direct horizontal direction hi as well, as indicated by corresponding arrows on figure 4B.
  • Direct direction means in the context of the present invention the direction orthogonal to the plane defined by the two telescopic shafts 17 which is in the most cases the travelling direction of the vehicle the low profile seat 10 is mounted in.
  • FIG. 5A depicts a rear view showing the low profile seat 10 according to the present invention, with the telescopic shafts 17 situated behind the backrest 13 of the seat shell 11, said seat shell 11 being suspended from the upper part of the upper element 17.2 of the telescopic shafts 17 via a suspending element 18 connected by a fixation element 18.3.
  • the tubular recesses 18.1 can be also seen as being slid on top of the upper elements 17.2 of the telescopic shafts 17.
  • the suspending element preferably connects the two telescopic shafts 17 providing stiffness to the structure.
  • the suspending element is on the other hand connected to the backrest 13 of the seat shell 11 by means of a fixation element 18.3.
  • said fixation element 18.3 is a fixation plate with screws, bolts or other suitable means for fastening it to the backrest 13. More sophisticated embodiments of the fixation element 18.3 will be described in relation with further figures.
  • the majority of the energy of the vibrations is absorbed by the telescopic shafts 17, which, in reaction to said vibrations, will perform relative shifting movements of their upper parts 17.2 with respect to their lower parts 17.1; - as the result of said relative shifting movements of the upper parts 17.2 with respect to their lower parts 17.1 dissipating the energy of the vibrations, preferably none, but in the worst case only a very small amount of the vibrations is transmitted to the suspending element 18 and therefore to the seat shell 11.
  • the base disk 15 can be rotated around the vertical axis Rl without affecting the damping functionalities of the low profile seat 10 in any way. Said rotation around Rl can be prevented, thus fixing the seat in a defined position around axis Rl, by means of securing such as securing pins, shafts or other known means.
  • Figure 5B shows a further embodiment of the present invention, suitable for damping additional vibrations in the transversal rotational direction r2.
  • the two telescopic shafts 17 are allowed to perform independent relative shifting movements, wherein a difference ⁇ v of said relative shifting movements compensates tilting movements ⁇ of the base disk 15 thus ensuring a constant essentially horizontal position of the seat shell 11 and providing damping of vibrations in the transversal rotational direction r2.
  • the operating principle of the damping of vibrations in the transversal rotational direction r2 can be well described with reference to figure 5B: - the base disk 15, being firmly connected to a vehicle is subjected directly to a rotational vibration in the transversal rotational direction r2;
  • the base disk 15 is titled with an angle ⁇ ;
  • the two telescopic shafts 17 perform independent relative shifting movements (for example one can expand while the other one contracts; or one expands more than the other, etc);
  • ⁇ v of said relative shifting movements compensates tilting movements by the angle ⁇ of the base disk 15 thus ensuring a constant essentially horizontal position of the seat shell 11 and providing damping of vibrations in the transversal rotational direction r2.
  • FIG. 5C depicts a rear view of the low profile seat 10 with a further embodiment of the suspending element 18 and the base disk 15 and its comprising means 16 compensating lateral shifts of the base disk 15.
  • the comprising means 16 are rotatable, but also the tubular recesses 18.1 of the suspending element 18.
  • the base disk 15, the two telescopic shafts 17 and the suspending element form a telescopic parallelogram arrangement which allows the base disk 15 to perform a relative shift sideways in relation to the seat shell 11 in the transversal horizontal direction h2.
  • Transversal horizontal direction h2 meaning in the context of the present invention, the direction parallel to the plane defined by the two telescopic shafts 17, which is in the most cases transversal to the travelling direction of the vehicle the low profile seat 10 is mounted in.
  • the operating principle of the damping of vibrations in the transversal horizontal direction h2 can be well described with reference to figure 5B:
  • the base disk 15 being firmly connected to a vehicle is subjected directly to vibrations in the transversal horizontal direction h2; - as a result of said vibrations in the transversal horizontal direction h2, the base disk 15 has a lateral movement ( ⁇ h);
  • FIG. 5D An embodiment of the present invention is depicted on figure 5D with additional transverse telescopes 24 connecting upper ends of the upper element 17.2 one of the two telescopic shafts 17 with a lower end of the upper element 17.2 of the other telescopic shaft 17 thus stabilizing said telescopic parallelogram arrangement.
  • the main role of these transverse telescopes 24 is to prevent the telescopic parallelogram arrangement form tilting uncontrolled around the rotating comprising means 16 and rotating tubular recesses 18.1, but at the same time allowing said telescopic parallelogram arrangement to tilt in reaction to vibrations.
  • the base disk 15 is subjected to vibrations in the transversal horizontal direction h2
  • the telescopic parallelogram arrangement will tilt, said tilt being damped and controlled by said transverse telescopes 24.
  • the telescopic parallelogram arrangement returns to its original position forced to do so by transverse telescopes 24.
  • the stiffness of the two telescopic shafts 17, the transversal telescopes 24 and eventually of the pitch stabilizer telescope 22 are determined according to the particular usage of the low profile seat 10 in such a way that a proper balance of the seat shell 11 is achieved and in the same time vibrations in the vertical longitudinal direction vl, in the direct rotational direction rl, in the direct horizontal direction hi, in the transversal rotational direction r2 and in the transversal horizontal direction h2 are compensated according to the strength of the vibrations in each direction in turn while at the same time providing the required stiffness to the low profile seat 10.
  • the low profile seat 10 comprises sensors (e.g. accelerometers) coupled so that they can detect not only the absolute vibrations of the base disk 15 and of the seat shell 11 but also their relative vibrations, thus allowing control electronics and stiffness regulating devices to modify the stiffness of the telescopic shafts 17 and/ or the pitch stabilizer telescope 22 and/ or the transversal telescope 24 in real time so that these can react to and compensate the vibrations detected by said sensors at that particular time.
  • sensors e.g. accelerometers
  • FIG. 6 shows a further embodiment of the mounting means 19, according to the present invention.
  • the mounting means further comprises a connecting piece 20 for connecting the lower elements 17.1 of the telescopic shafts 17, and an additional common shaft 21.
  • This additional common shaft 21 is connected on the upper end with the middle portion of the connecting piece 20 and the lower end of the additional common shaft 21 is connected to the floor of the vehicle via the means 16.
  • the additional common shaft 21 acts both as an additional damper of shocks and at the same time fulfils the role of the base disk 15, i.e. allows the rotation of the seat shell 11 around an axis of rotation R2 of the additional common shaft 21.
  • transversal rotational direction r2 transversal horizontal direction h2

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

Abstract

L'invention concerne un siège surbaissé (10) pour un véhicule, comprenant une coque de siège (11) dotée d'une zone d'assise (12), de supports latéraux (14) et d'un dossier (13), des moyens de montage (19) pour le montage souple du siège surbaissé (10), caractérisé en ce que les moyens de montage (19) comprennent deux tiges télescopiques (17), comprenant chacun un élément inférieur (17.1) et un élément supérieur (17.2) s'étendant vers le haut derrière ledit dossier (13), reliés de sorte que l'élément supérieur (17.2) soit capable d'effectuer un déplacement relatif; un disque de base (15) pouvant être monté sur une surface plane, ledit disque de base (15) comprenant des moyens (16) permettant de recevoir les deux tiges télescopiques (17); un élément de suspension (18) fixé aux éléments supérieurs (17.2) des deux arbres télescopiques (17) de sorte que les éléments supérieurs (17.2) soient au moins partiellement enserrés dans l'élément de suspension (18), ledit élément de suspension (18) supportant ladite coque de siège (11).
PCT/EP2009/050786 2008-01-30 2009-01-23 Siège surbaissé pour un véhicule WO2009095356A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE202009017959U DE202009017959U1 (de) 2008-01-30 2009-01-23 Sitz mit niedrigem Sitzprofil für ein Fahrzeug

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
PCT/EP2008/051096 WO2009095073A1 (fr) 2008-01-30 2008-01-30 Siège pour un véhicule
EPPCT/EP2008/051096 2008-01-30

Publications (1)

Publication Number Publication Date
WO2009095356A1 true WO2009095356A1 (fr) 2009-08-06

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PCT/EP2008/051096 WO2009095073A1 (fr) 2008-01-30 2008-01-30 Siège pour un véhicule
PCT/EP2009/050786 WO2009095356A1 (fr) 2008-01-30 2009-01-23 Siège surbaissé pour un véhicule

Family Applications Before (1)

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PCT/EP2008/051096 WO2009095073A1 (fr) 2008-01-30 2008-01-30 Siège pour un véhicule

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WO (2) WO2009095073A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112218797A (zh) * 2018-04-09 2021-01-12 齐姆飞机座椅有限公司 具有可运动地支承的座垫的飞机乘员座椅

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009095073A1 (fr) 2008-01-30 2009-08-06 Code-X Ag Siège pour un véhicule
US11364826B2 (en) * 2018-10-30 2022-06-21 Fox Factory, Inc. Sealed boat seat suspension

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