DE102017205146A1 - Vehicle seat with individually adjustable contour and variable degree of hardness of a padded part - Google Patents

Vehicle seat with individually adjustable contour and variable degree of hardness of a padded part

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Publication number
DE102017205146A1
DE102017205146A1 DE102017205146.9A DE102017205146A DE102017205146A1 DE 102017205146 A1 DE102017205146 A1 DE 102017205146A1 DE 102017205146 A DE102017205146 A DE 102017205146A DE 102017205146 A1 DE102017205146 A1 DE 102017205146A1
Authority
DE
Germany
Prior art keywords
12b
contour
plastic particles
part
vehicle seat
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.)
Pending
Application number
DE102017205146.9A
Other languages
German (de)
Inventor
Joachim Müller
Hermione Townsend
Tushita Gupta
Israel Gbati
Michele Spinello
Mathias Meyer
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.)
Volkswagen AG
Original Assignee
Volkswagen 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 Volkswagen AG filed Critical Volkswagen AG
Priority to DE102017205146.9A priority Critical patent/DE102017205146A1/en
Publication of DE102017205146A1 publication Critical patent/DE102017205146A1/en
Application status is Pending legal-status Critical

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60NSEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/64Back-rests or cushions
    • B60N2/646Back-rests or cushions shape of the cushion

Abstract

The invention relates to a vehicle seat (100) comprising at least one upholstered part (12B) which has a gas-impermeable sheath (12B-1) with at least one filling and emptying valve in which loose plastic particles (12B-2) in an initial contour (I) of the upholstery part ) are randomly distributed in the cushioning member (12B) which are movable relative to each other at an ambient pressure acting in the gas-impermeable sheath (12B-1), such that the at least one cushioning member (12B) from the initial contour (I) into a user contour (12) II) is convertible by one body part of a person (P) exerting a mechanical force on the at least one cushion part (12B) and displacing the loose plastic particles (12B-2), the user contour (II) of the cushion part (12B) being a negative It is envisaged that the loose plastic particles (12B-2) in the user contour (II) by an at least partially Evak tion of the gas in the gas-impermeable sheath (12B-1) via the at least one filling and emptying valve are solidifiable, so that the user contour (II) generated by the displacement of the plastic particles (12B-2) regardless of the on the cushion part (12B) acting force is maintained.

Description

  • The invention relates to a vehicle seat comprising at least one upholstered part, which has a gas-impermeable envelope with at least one filling and emptying valve in which loose plastic particles are randomly distributed in an initial contour of the cushion part in the upholstery part, which are relative to an ambient pressure acting in the gas-impermeable envelope are movable relative to each other, so that the at least one cushion part of the initial contour is convertible into a user contour by a body part of a person exerts a mechanical force on the at least one cushion part and displaces the loose plastic particles, wherein the user contour of the cushion part of a negative body contour of a body part corresponds to the person.
  • The publication EP 0 967 114 A2 discloses a seat with a sturdy subframe and a resilient pad having a base portion and a pad. For the purpose of providing such a device in which the body of the user is anatomically properly supported so that the body can relax and no pressure points arise, the base consists of a transversely rigid, but longitudinally flexible material and is, for example, by a thin, wavy spring plate of spring steel , Carbon, glass or Kevlar fibers, titanium realized.
  • The document describes a vehicle seat that is capable of keeping an occupant in a stable position on a seat part, even when a load is applied to the occupant during a vehicle movement. It is proposed that in a cushion cushion of a seat part movable beads are arranged, which are displaced upon seating of an occupant on the cushion pad in the cushion cushion. It is further contemplated that the displacement movement of the beads is limited by the placement of a closure member at the side and rear portions of the cushion pad so as to prevent collapse of the cushion cushion on the side and rear portions of the seat portion, thereby rendering the cushion cushion within easy rising condition is maintained.
  • The publication KR 10 2007 117 234 A describes a so-called memory foam seat of a vehicle. It is provided to improve the ride comfort, that the vehicle seat is formed of a so-called memory foam and a urethane foam.
  • Finally, the document describes WO 2008/031374 A1 in an embodiment ( 6 and related description) a so-called adaptation means in a structure of a vehicle seat, which stiffen impulsively, for example in the event of an accident or an impending accident and thus keep the vehicle occupant in his sitting position. The vehicle seat has a central part, which is bounded laterally in the region of both the seat surface and the backrest by side cheeks. The side cheeks of a backrest portion of the central part have bubble-like structures. The bubble-like structures are each airtight sealed by a shell against their environment and have mutually displaceable particles. The bubble-like structures are also connected in each case via lines with a vacuum storage. By opening valves in the lines, it is possible to pulse-like evacuate the bubble-like structures, with the result that the particles abruptly move towards each other and then such friction forces between them occur that they are virtually no longer mutually displaceable. This results in a lightning-like stiffening of the bubble-like structures. To provide a vacuum in the vacuum accumulator this is connected to a pump by means of which - for example, immediately after the start - long before an accident event for evacuation of the vacuum accumulator can be provided. The pump may be the existing vacuum pump of a brake booster of a vehicle, which takes over the evacuation of the vacuum accumulator as an additional function.
  • The invention has for its object to provide a vehicle seat whose functions increase the comfort of a person using the vehicle seat.
  • The starting point of the invention is a vehicle seat comprising at least one upholstered part, which has a gas-impermeable envelope with at least one filling and emptying valve, in which loose plastic particles are randomly distributed in the cushion part in an initial contour of the upholstery part, which at an ambient pressure acting in the gas-impermeable envelope be movable relative to each other, so that the at least one cushion part of the initial contour is convertible into a user contour by a body part of a person exerts a mechanical force on the at least one cushion part and displaces the loose plastic particles, the user contour of the cushion part of a negative body contour of a Body part of the person corresponds.
  • Preferred as upholstery parts according to the invention, a seat cushion of a seat part and / or a backrest cushion a backrest or a headrest cushion a headrest and / or a side bolster of the seat part and / or a side bolster of the backrest and / or a head restraint cheek considered the headrest.
  • According to the invention, provision is made for at least one of the post parts provided for the loose plastic particles in the user contour to be solidifiable by at least partial evacuation of the gas in the gas-impermeable envelope via the at least one filling and emptying valve, so that the user contour generated by the mechanical displacement of the plastic particles is maintained regardless of the force acting on the cushion part force.
  • Due to the at least partial evacuation of the gas is achieved in an advantageous manner that the user contour is still maintained even when the mechanical displacement of the plastic particles in the gas-impermeable envelope of the cushion part stops. This is a significant advantage over that in the document JP 2016 049 853 A seen vehicle seat seen.
  • It is preferably provided that the plastic particles are slightly reversibly elastically deformed by the force acting on the plastic particles in the conversion of the initial contour in the user contour. As a result, the plastic particles adapt in an advantageous manner very well to the body contour of the respective batch of the body.
  • The fact that the plastic particles are elastically reversible, return the plastic particles in an advantageous manner after completion of the mechanical force acting on them in their original state.
  • For the plastic particles is preferably a polystyrene foam or an expanded polystyrene foam (abbreviation: EPS) used in spherical form, which are referred to as expanded polystyrene foam beads (EPS foam beads). Spherical plastic particles have the advantage that they adapt very well to the body contour of the respective part of the body as filling material in the shell of the respective upholstery part.
  • It is further preferred that the at least partial evacuation of the gas from the gas-impermeable envelope by means of a pressure and vacuum pump in an evacuation operation provides for a negative pressure in the shell of the at least one cushion part, which by a minimum compression of the plastic particles for a sufficient permanent Solidification of the user contour ensures, with the minimum compression of the plastic particles corresponds to a minimum minimum degree of hardness of the cushion part adjustable.
  • According to the invention, it is thus initially advantageously provided only to generate a negative pressure which ensures sufficient permanent hardening of the user contour. Since the user contour produced by the mechanical displacement of the plastic particles is present for a longer period of time by the person, it is compared to that in the document of the WO 2008/031374 A1 described vehicle seat not necessary to proceed impulsively, but it is possible by means of the pressure and vacuum pump, in particular without providence of a pressure accumulator for a pulse-like approach to generate a negative pressure.
  • In addition there is advantageously another aspect of the invention, which consists in starting from the negative pressure generated in the envelope of the at least one cushion part by means of the pressure and vacuum pump in a continuous or discontinuous evacuation operation, in particular in a stepwise evacuation operation, a negative pressure different from that is adjustable so that a changed negative pressure leads to a change in the degree of hardness of the cushion part, wherein the degree of hardness of the cushion part increases with increasing negative pressure in the shell and decreases with falling negative pressure in the shell of the cushion part.
  • Preferably, it can also be provided that the negative pressure between the negative pressure generating the minimum compression of the plastic particles in the casing and the negative pressure generating the maximum compression can be adjusted by means of the pressure and vacuum pump in a pulsating operation of evacuation and filling operation in which the negative pressure increases and decreases in a predefinable time sequence within a predefinable time period. As a result, positive ergonomic seat effects can be achieved in an advantageous manner, wherein in addition physical stress phenomena are reduced, that changes in the context of the changing pressure of the degree of hardness of the respective Polterteiles.
  • It is provided that by means of the pressure and vacuum pump both the evacuation operation for setting the desired negative pressure in the shell of the cushion part and the filling operation for adjusting the ambient pressure in the shell of the cushion part is made. It is preferably provided that the pressure and vacuum pump is integrated into the vehicle seat. In another preferred embodiment, the pressure and vacuum pump is arranged outside the vehicle seat so that pneumatic connecting lines are guided into the vehicle seat.
  • The vehicle seat, in combination with its technical features, has the advantage that the contour of the respective cushion can be individually adapted to the respective user. These are in an advantageous manner by the person himself on the respective cushion member applied mechanical forces used.
  • In addition, the degree of hardness can be changed after the contour of the respective pad has been individually adapted to the respective user. For this purpose, the pressure conditions in the shell of the upholstery part are changed in a simple manner, whereby it comes after the mechanical displacement by the person to a compression of the plastic particles, which is not caused by the person, but the negative pressure generating pressure and vacuum pump. Depending on which negative pressure is set, the frictional forces between the plastic particles change, so that the respective seat cushion is softer (low frictional forces between the plastic particles) or harder (high frictional forces between the plastic particles).
  • Advantageously, the proposed embodiment of the vehicle seat, that a variable contour of the seat is made possible by an evacuation or a filling of the cushion part, which facilitates, for example, the exit of a person from the vehicle. For example, a person can partially or completely undo the previous evacuation by filling the cushion part, whereby the previously solidified contour of the cushion part is changed again. If the person then executes a body rotation about its vertical axis when exiting, advantageously a contour adjustment of the cushion part, whereby a facilitated exit is possible. As a result, lateral upholstery parts of a seat (seat side bolster) or a backrest part (backrest side bolsters) can be overcome more easily when leaving. The described principle can be used not only for the seat part, but also for the mentioned side bolsters. A strengthened by evacuation side cheek pads with a person's exit disabling increased side cheek contour can be partially or completely changed by filling the cushion part in terms of contour again, so that the contour adapts to the person on the exit, the force on the respective Seitenwangenpolster during the exit exercises.
  • The invention will be explained below in an embodiment with reference to the accompanying drawings. Show it:
    • 1A a vehicle seat in a side view with a seat cushion in an unmatched to a body initial contour at an unoccupied vehicle seat;
    • 1B a section A transversely in the y direction through a seat part with the seat cushion according to the arrow A in 1A ;
    • 2A the vehicle seat in a side view with the seat cushion in a body-adapted use contour in a used vehicle seat;
    • 2 B a section through the seat part with the seat cushion according to the arrow A in 2A ,
  • For the purposes of the description of the embodiment, a horizontal direction of components of a vehicle seat shall be referred to as "x". By "y" is meant the direction in the horizontal orthogonal to the x-direction, and "z" denotes the direction in the vertical of components of the vehicle seat orthogonal to the x-direction. Within all figures, the same reference numerals for the same components are used below, which may not be explained again in each figure again all components already presented by reference numerals.
  • The in 1 in a side view shown vehicle seat 100 includes in a known manner a seat part 12, a backrest 14 and a headrest 16 ,
  • The seat part 12 of the vehicle seat 100 includes a seat cushion 12B , which in one to a body of a seated person P (see. 2A ) unadjusted initial contour I the seat cushion 12B in an unoccupied vehicle seat 100 is illustrated schematically in a sectional view. The seat cushion 12B is with a reference 12A Mistake.
  • The vehicle seat 100 is in the embodiment indirectly via a lower and immediately via a lateral support structure 12C . 12D with a body K connected. The lower support structure is for example a seat pan, while the lateral support structure side parts 12D of the seat part 12 are, wherein the structural design of the vehicle seat with respect to connection to the body K is not important to the invention.
  • The invention relates to post parts, which parts of the seat part 12 and / or the backrest 14 and / or a side wall (not shown) and / or part of a headrest 16 are.
  • Representative of the mentioned components of the vehicle seat 100 Subsequently, the seat cushion 12 B of the seat part 12 of the vehicle seat 100 explained, which is arranged for example between two seat part side bolsters not shown.
  • The seat cushion 12B includes a gas impermeable envelope 12B-1 and is with plastic particles 12B-2 filled, in the interstices, a gas, especially air is.
  • In the 1A and 1B is the seat cushion 12B of the seat part 12 in the on the body of a seated person P (see. 2A ) unadjusted initial contour I shown.
  • As plastic particles 12B-2 In particular, plastic balls are used, as a material for the plastic particles 12B-2 in particular expanded polystyrene foam (abbreviation: EPS) is provided, which is known under the trade name "Styrofoam".
  • The greater the density of the polystyrene balls, the more dimensionally stable they are, with styrofoam balls having a density of 12 to 20 kg / m 3 and a diameter of 0.5 to 5 mm are proposed. Depending on the diameter of the selected polystyrene balls, the size of the interstices changes.
  • Depending on the density of the styrofoam balls are also more or less elastically deformable reversible.
  • The greater their density, the lower is the elastic reversible deformability with constant force. In other words, the volume of styrofoam balls is reduced under mechanical stress, they are compressed more or less strongly under pressure depending on their density.
  • On the gas-impermeable envelope 12B-1 At least one connection is provided, directly or indirectly via a pneumatic line with a pressure and vacuum pump 18 connected to the air from the seat cushion 12B sucks and the shell 12B of the seat cushion 12B and thereby remove the air in the interstices of the polystyrene balls. The seat cushion 12B can thus be at least partially evacuated.
  • The pressure and vacuum pump 18 However, by switching the pressure and vacuum pump 18 also pump air into the interstices of the polystyrene balls, so that the shell 12B-1 inflated and the seat cushion 12B after an at least partial evacuation is refilled. Used is a preferably via the electrical system controllable, driven pressure and vacuum pump 18 for pumping air out of the shell 12B-1 , wherein the internal pressure in the envelope is reduced from the ambient pressure or increased when filling the envelope back to the ambient pressure.
  • The pressure and vacuum pump 18 can in the vehicle seat 100 or outside of the vehicle seat 100 are arranged.
  • The 1B shows a section A according to the arrow A in Figure 1A, the transverse in the y-direction, the x-directional longitudinal axis of the with the seat cushion 12 provided seat part 12B runs.
  • In 1B is shown below the unmatched output contour I of the seat cushion 12B the seat pan as a lower support structure 12C is arranged.
  • Visible is the seat pan 12C at the bottom of the unmatched initial contour I of the seat cushion 12B according to 1B is arranged.
  • It consists in variants of the possibility (not shown) that on the inside of the cover 12B a foam is arranged, whereby the plastic particles in the seat cushion 12B are displaced only after overcoming the elastic deformation of the foam necessary force or are reversibly elastically deformed, and thus can adapt to the contour of the person. Such a configuration results in terms of the dynamic adjustment process of the contour of the seat cushion 12B at the sitting of the person P on the seat cushion 12B Advantages in that the deformation process of the seat cushion 12B slows down and for the seated person P less dynamic takes place, the foam also the contour of the seat cushion 12B uniform.
  • In order to set an individually adjustable contour and a variable seat hardness, the starting contour I of the seat cushion is used 12B according to the 1A and 1B proceeding as follows:
  • The seat cushion 12B indicates at ambient pressure inside the envelope 12B the initial contour I on.
  • To adjust the contour of the seat cushion 12B to an individually trained body part of a person P , in particular to a butt P1 of the person P , the person sits down P on the seat cushion 12B of the seat part 12 ,
  • The case 12B-1 of the Sitzpolters 12B is in the initial contour I filled with a volume of plastic particles 12B-2, which does not completely fill the seat cushion volume, so that the seat cushion 12B is still relatively soft, and thus can adapt to the body contours of the respective body part particularly well.
  • It takes place when the person sits up P an adaptation of the seat cushion 12B to the body contour of the person, in particular to the buttocks contour P1 of the person P , where sitting on the ratio by weight of the person P and bearing surface changed, so that in the first step, the selective contact pressure is changed. In this way, a very good pressure distribution is achieved. Depending on the density of the plastic particles 12B-2 , In particular, the Styrofoam balls, it comes to a more or less strong mechanically induced reversible deformation of the elastically deformable plastic particles 12B-2 , The result of the first step is a user contour II set, which is a negative contour of the body contour of each body part of the person P is.
  • In a second step, the seated person P , the previously only mechanically produced and slightly compressed user contour II of the seat cushion 12B "Freeze", by subsequent to the first step, subsequent extraction of the air from the shell 12B-1 of the Sitzpolters 12B a fixed user contour II is effected.
  • For this purpose, the person operates a control element, not shown, which is a continuous and / or stepwise control of the pressure and vacuum pump 18 allows.
  • In a first stage, an evacuation of the seat cushion is preferred 12B by switching on the pressure and vacuum pump 18 and adjusting a first negative pressure formed in the envelope relative to the ambient pressure 12B-1 of the seat cushion 12B made necessary for a sufficient permanent consolidation of the user contour II of the seat cushion 12B ensures that is maintained as long as the first negative pressure in the seat cushion 12B is applied. A lockable two-way valve in the case 12B-1 of the seat cushion 12B ensures that the air can be sucked off in this step, with the valve closing when the first vacuum is reached and the pressure and vacuum pump closing 18 can be turned off.
  • The negative pressure in the shell 12B-1 in the seat cushion 12B which ensures sufficient permanent consolidation of the user contour II of the seat cushion 12B provided by the minimum compression of the plastic particles 12B-2, corresponds to a lowest adjustable minimum degree of hardness (Level1) of the seat cushion 12B ,
  • Yes, according to the design of the control element and the associated control, it is by the operator P According to the invention, in further steps in a first embodiment variant, it is possible to carry out a discontinuous (stepwise) activation of the pressure and vacuum pump 18 in order to determine the degree of hardness in n starting from the minimum degree of hardness (level n = 1) Stages (n = 1, 2, 3 ...) by further evacuation of air from the shell 12B-1 of the seat cushion 12B adjust.
  • In particular, it is proposed in the first embodiment, starting from the minimum degree of hardness (level n = 1), that the person P can make a continuous adjustment of the degree of hardness.
  • In the second embodiment, the person P by means of the appropriately designed control element and the associated control, starting from the minimum degree of hardness (level n = 1), make a gradual setting, the level n = 1, for example, for the degree of hardness of the seat cushion 12B "Soft" the level n = 2, for example, for the degree of hardness of the seat cushion 12B "Middle" and the level n = 3, for example, for the degree of hardness of the seat cushion 12B "hard" stands.
  • In a third embodiment, by the serving person P be selected whether a continuous and / or discontinuous (stepwise) control of the pressure and vacuum pump 18 and thus the degree of hardness of the seat cushion 12B as described above.
  • The 2A and 2 B show the vehicle seat 100 in a side view and in a section A analogous to the 1A and 1B through the seat part 12 with the seat cushion 12B according to the arrow A in Figure 2A, in the body part P1 of the person P customized user contour II in a used vehicle seat 100 ,
  • The mechanical compression of the plastic particles 12B-2 , as well as the reversible elastic deformation of the plastic particles 12B-2 at the sitting of the person P and the densification of the plastic particles 12B-2 by the continuous and / or discontinuous evacuation of the air from the seat cushion 12B will be in the 2A and 2 B through the plastic particles, which are closer together 12B-2 in the seat cushion 12B symbolizes.
  • It is understood that inflating the seat cushion 12B via the lockable two-way valve by means of the pressure and vacuum pump 18 depending on the continuous and / or discontinuous (stepwise) control of the pressure and vacuum pump 18 leads to a reduction in the degree of hardness. Will be in the seat cushion 12B once the ambient pressure is reached again, the solidified user contour becomes II completely canceled.
  • There is thus the possibility of being on a person P to maintain a coordinated attitude, even after the person P the vehicle seat 100 has left by the set negative pressure in the case 12B-1 is maintained.
  • Should the user contour II and the degree of severity for another person P are adjusted, the above-described process, starting from the initial contour I performed by another person.
  • The description does not only apply to the seat cushion 12B a seat part 12 but also for a backrest cushion of the backrest 14 or a headrest cushion of the headrest 16 or a side bolster of the seat part 12 and / or the backrest 14 or a headrest cheek of the headrest 16 and other possible upholstery parts.
  • The solution according to the invention, starting from the prior art, which provides for an adaptation of components of the vehicle seat by means of inflatable elements or mechanically adjustable elements, represents a possibility of the user contour II to a body contour of a person P temporarily or permanently.
  • In particular, conventional inflatable elements have to act actively against an already acting by the use of pressure, whereby a much more complex control is needed.
  • According to the invention, the individual user contour is preferred II made by adjusting the plastic particles in the first step by displacement of the plastic particles and the slight elastic reversible deformation of the plastic particles. In this process step, no filling of the shell of the respective pad is made, which is a significant difference to exclusively inflatable components.
  • Another aspect of the invention is that it is provided that the continuous and / or discontinuous (stepwise) control of the pressure and vacuum pump 18 is made to reduce or increase the degree of hardness in adjustable limits pulsating. As a result, the respective upholstery, in particular for longer journeys, can give a person relaxing function to the seated person, since the seated position of the same person sitting on it P , in particular with a reduction of the degree of hardness beyond the minimum degree of hardness can change.
  • LIST OF REFERENCE NUMBERS
  • 100
    vehicle seat
    12
    seat part
    12A
    reference
    12B
    seat cushion
    12B-1
    shell
    12B-2
    Plastic particles
    12C
    lower support structure
    12D
    lateral support structure
    14
    backrest
    16
    headrest
    18
    Pressure and vacuum pump
    K
    body
    P
    person
    I
    initial contour
    II
    users contour
    x
    Direction in or against the direction of travel of a vehicle
    y
    Direction in the horizontal direction transverse to the x-direction
    z
    Direction in the vertical direction transverse to the x-direction
  • QUOTES INCLUDE IN THE DESCRIPTION
  • This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
  • Cited patent literature
    • EP 0967114 A2 [0002]
    • KR 102007117234 A [0004]
    • WO 2008/031374 A1 [0005, 0015]
    • JP 2016049853A [0010]

Claims (9)

  1. Vehicle seat (100) comprising at least one cushion part (12B) having a gas-impermeable sheath (12B-1) with at least one filling and emptying valve, in which in an initial contour (I) of the cushion part loose plastic particles (12B-2) at random in the Pad member (12B) are arranged distributed, which are movable relative to each other at an ambient pressure acting in the gas-impermeable sheath (12B-1), so that the at least one pad member (12B) from the initial contour (I) in a user contour (II) is convertible in that a body part of a person (P) exerts a mechanical force on the at least one cushion part (12B) and displaces the loose plastic particles (12B-2), the user contour (II) of the cushion part (12B) of a negative body contour of a body part of the body part Person (P) corresponds, characterized in that the loose plastic particles (12B-2) in the user contour (II) by an at least partial evacuation of the gas in d the gas-impermeable envelope (12B-1) can be solidified via the at least one filling and emptying valve, so that the user contour (II) generated by the displacement of the plastic particles (12B-2) is maintained independently of the force acting on the cushion part (12B) ,
  2. Vehicle seat (100) to Claim 1 , characterized in that the plastic particles (12B-2) by the force acting on the plastic particles (12B-1) during the conversion of the initial contour (I) in the user contour (II) are slightly reversibly elastically deformed.
  3. Vehicle seat (100) to Claim 1 characterized in that the at least partial evacuation of the gas from the gas impermeable envelope (12B) by means of a pressure and vacuum pump (18) in an evacuation mode for a negative pressure in the envelope (12B-1) of the at least one cushioning member (12B) ensures that by a minimum compression of the plastic particles (12B-2) for a sufficient permanent solidification of the user contour (II), wherein the minimum compression of the plastic particles (12B-2) with a lowest adjustable minimum degree of hardness of the cushion part (12B ) corresponds.
  4. Vehicle seat (100) to Claim 3 , characterized in that the minimum compression of the plastic particles (12B-2) generating negative pressure in the shell (12B-1) of the at least one cushion part (12B) by means of the pressure and vacuum pump (18) in a continuous or discontinuous Evacuation operation, in particular in a staged evacuation operation is adjustable such that a change in the negative pressure leads to a change in the degree of hardness of the cushion part (12 B), wherein the degree of hardness of the cushion part (12 B) increases with increasing negative pressure in the shell (12 B-1) and decreasing negative pressure in the shell (12B-1) of the cushion part (12B) decreases.
  5. Vehicle seat (100) to Claim 3 characterized in that the negative pressure between the negative pressure producing the minimum compression of the plastic particles (12B-2) in the sheath (12B-1) and the negative pressure generating the maximum compression means of the pressure and vacuum pump (18) a pulsating operation evacuation and Befüllbetrieb is adjustable, in which the negative pressure increases and decreases in a predetermined timing and in a predetermined period.
  6. Vehicle seat (100) to Claim 3 , characterized in that in the Befüllbetrieb the ambient pressure by means of the pressure and vacuum pump (18) is adjustable.
  7. Vehicle seat (100) to Claim 1 and 3 , characterized in that the pressure and vacuum pump (18) integrated in the vehicle seat (100) or outside of the vehicle seat (100) is arranged.
  8. Vehicle seat after Claim 1 , characterized in that the plastic particles (12B-2) of a polystyrene foam or an expanded polystyrene foam (abbreviation: EPS), in particular EPS foam beads.
  9. Vehicle seat after Claim 1 , characterized in that the cushion part a seat cushion (12B) of a seat part (12) and / or a backrest pad a backrest (14) or a headrest pad a headrest (16) and / or a side bolster of the seat part (12) and / or a side bolster the backrest 14 and / or a headrest cheek of the headrest (16).
DE102017205146.9A 2017-03-27 2017-03-27 Vehicle seat with individually adjustable contour and variable degree of hardness of a padded part Pending DE102017205146A1 (en)

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DE102017205146.9A DE102017205146A1 (en) 2017-03-27 2017-03-27 Vehicle seat with individually adjustable contour and variable degree of hardness of a padded part

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102017205146.9A DE102017205146A1 (en) 2017-03-27 2017-03-27 Vehicle seat with individually adjustable contour and variable degree of hardness of a padded part

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3739752A1 (en) * 1987-11-24 1989-06-08 Porsche Ag Seat for a vehicle, aircraft or the like
DE3917992A1 (en) * 1989-06-02 1990-12-06 Hans Roth Safety car seat for young children - made of foam rubber lining and evacuated polystyrene beads padding
EP0967114A2 (en) 1998-06-25 1999-12-29 DaimlerChrysler AG Device for sitting in and/or lying on, particularly vehicle or aircraft seat
KR20070117234A (en) 2006-06-07 2007-12-12 이경달 Memory set
WO2008031374A1 (en) 2006-09-15 2008-03-20 Takata-Petri Ag Vehicle seat for a motor vehicle
JP2016049853A (en) 2014-08-29 2016-04-11 株式会社豊田中央研究所 Vehicle seat

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3739752A1 (en) * 1987-11-24 1989-06-08 Porsche Ag Seat for a vehicle, aircraft or the like
DE3917992A1 (en) * 1989-06-02 1990-12-06 Hans Roth Safety car seat for young children - made of foam rubber lining and evacuated polystyrene beads padding
EP0967114A2 (en) 1998-06-25 1999-12-29 DaimlerChrysler AG Device for sitting in and/or lying on, particularly vehicle or aircraft seat
KR20070117234A (en) 2006-06-07 2007-12-12 이경달 Memory set
WO2008031374A1 (en) 2006-09-15 2008-03-20 Takata-Petri Ag Vehicle seat for a motor vehicle
JP2016049853A (en) 2014-08-29 2016-04-11 株式会社豊田中央研究所 Vehicle seat

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