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
  • B60N2/56—Heating or ventilating devices
  • B60N2/5607—Heating or ventilating devices characterised by convection
  • B60N2/5621—Heating or ventilating devices characterised by convection by air
  • B60N2/5635—Heating or ventilating devices characterised by convection by air coming from the passenger compartment
• • 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
  • B60N2/06—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 slidable
• • 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
  • B60N2/1839—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 an intermediate position
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
  • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
  • B60N2/50—Seat suspension devices
  • B60N2/502—Seat suspension devices attached to the base of the seat
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
  • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
  • B60N2/50—Seat suspension devices
  • B60N2/506—Seat guided by rods
  • B60N2/508—Scissors-like structure
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
  • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
  • B60N2/56—Heating or ventilating devices
  • B60N2/5607—Heating or ventilating devices characterised by convection
  • B60N2/5621—Heating or ventilating devices characterised by convection by air
  • B60N2/5642—Heating or ventilating devices characterised by convection by air with circulation of air through a layer inside the seat
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
  • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
  • B60N2/56—Heating or ventilating devices
  • B60N2/5607—Heating or ventilating devices characterised by convection
  • B60N2/5621—Heating or ventilating devices characterised by convection by air
  • B60N2/5657—Heating or ventilating devices characterised by convection by air blown towards the seat surface

Definitions

• the invention relates to a seat ventilation system for a vehicle seat
• the invention also relates to a vehicle seat, in particular a
• PRIOR ART DE 10 2009 024 332 A1 discloses a generic seat ventilation system for a vehicle seat.
• the vehicle seat includes a
• Vehicle seat sucks and blown into a large spacer knitted fabric.
• the spacer fabric is arranged at the front of the backrest. Due to the spacer knitted fabric and the cover resting on the foam part, the intake air flows forward and toward an occupant. If tucks or stitches are desired in the cover, then they must be laboriously introduced so that the spacer knitted fabric is not pressed in at this point, whereby the air flow would be hindered.
• the invention is based on the object to improve a seat ventilation system of the type mentioned, in particular a disability of
• the seat ventilation system for a vehicle seat comprises a cover covered with a cover, and at least one fan arranged in a ventilation opening, which conveys air into a spacer knitted fabric, wherein on the side facing away from the reference of the spacer fabric, a channel system is provided, which is mainly parallel to the
• Spacer knits extends, and from which air flows into the spacer knitted fabric and wherein the channel system has an approximately constant thickness.
• the air thus flows into the spacer fabric not only directly from the fan but also from the entire channel system, and from there to the front through the cover.
• the air is more evenly distributed over the entire surface of the knitted fabric and thus more evenly exits the cover to the front, even if the spacer knitted fabric is locally squeezed due to tears or stitches in the cover.
• a constant thickness of the channel system which in the present case an expansion perpendicular to the front of the backrest, so approximately in the direction of travel to understand, causes a relatively uniform air flow within the channel system.
• the backrest has a foam part.
• the foam part Due to its soft structure, the foam part initially increases the seating comfort for an occupant. Furthermore, a processing of the foam part for introducing the channel system and for introducing openings for receiving the
• the channel system is formed in the said foam part of the backrest.
• the channel system is milled out of the foam part.
• the channel system is penetrated by at least one spacer.
• the provision of spacers prevents the spacer fabric from entering the channel system. Spacers thus also provide a constant thickness of the channel system.
• a plurality of spacers are provided, in particular exactly two spacers, which are arranged side by side in the transverse direction.
• the spacer fabric lies on the at least one
• the spacer fabric completely covers the channel system.
• the spacer knitted fabric is glued to the at least one spacer and / or to the bearing surface surrounding the channel system.
• the at least one fan of the seat ventilation system according to the invention is advantageously arranged in a ventilation opening, which extends approximately in the direction of travel and which is connected to the duct system.
• the fan can air from an area behind the backrest of the
• a plurality of ventilation openings are provided, in particular exactly two ventilation openings.
• Exactly two ventilation openings are advantageously arranged in the transverse direction next to each other and parallel to each other.
• several fans are advantageously provided, in particular exactly two fans.
• At least one fan in particular exactly one fan, is particularly advantageously arranged in each ventilation opening.
• Ventilation openings and / or multiple fans a larger amount of air can be introduced into the duct system.
• the at least one ventilation opening can be arranged in a vertically middle or upper region of the backrest. This is particularly advantageous because in the lower vertical region of the backrest usually no space for providing
• Ventilation openings and / or fans is available, as there are more
• Functional elements such as a lumbar support and / or
• Adjustment devices are arranged.
• FIG. 1 is a plan view of the front of the backrest of a
• FIG. 2 shows a section through the backrest of the vehicle seat of Fig. 1 along the line II - II and
• FIG. 3 shows a schematic representation of a vehicle seat.
• a vehicle seat 1 for a commercial vehicle has a scissors-type frame 3, which comprises a subframe 5, an upper frame 7 arranged above it, and a pair of crossed rockers 8a and 8b on both sides.
• a cross tube 9 connects the two crossing points and at the same time defines a scissors axis about which the rockers 8a and 8b can pivot relative to each other.
• a direction oriented perpendicular to the ground is hereinafter referred to as vertical direction and a direction perpendicular to the vertical direction and perpendicular to the direction of travel is hereinafter referred to as vertical direction and a direction perpendicular to the vertical direction and perpendicular to the direction of travel is hereinafter referred to as vertical direction and a direction perpendicular to the vertical direction and perpendicular to the direction of travel is hereinafter referred to as
• rockers 8a and 8b are hinged at their rear end to the subframe 5 and the upper frame 7 and each have at its front end rotatable rollers, by means of which they are in or on the upper frame 7 or
• Subframe 5 in the seat longitudinal direction which corresponds approximately to the direction of travel, are movably guided.
• the rockers 8a and 8b By this movement of the rockers 8a and 8b, the height of the upper frame 7 changes above the lower frame 5, in the
• the height of the scissors-type frame 3 By means of a
• the vehicle seat 1 further has a seat frame 6, which is articulated on both sides on the one hand in its rear region on the upper frame 7 and on the other hand in its front region by means of a tilt adjuster raisable and lowerable and thus adjustable in its inclination relative to the scissors frame 3.
• the vehicle seat 1 also has a backrest 10, which is attached to the seat frame 6 in the present case adjustable in inclination. Alternatively, the backrest 10 can also be attached to the upper frame 7.
• the seat part 2 is, together with the scissor frame 3, by means of two
• the two pairs of rails are offset from each other in the transverse direction and parallel arranged to each other.
• the two pairs of rails are essentially identical.
• Each pair of rails comprises a first seat rail 45, which also as
• Upper rail is designated, and a second seat rail 46, which is also referred to as a bottom rail.
• the second seat rail 46 is presently firmly connected to the structure of the vehicle and the first seat rail 45 is fixedly connected to the lower frame 5 of the vehicle seat 1.
• the first seat rail 45 by means of an adapter with the sub-frame 5 of the vehicle seat 1
• the first seat rail 45 is guided relative to the second seat rail 46 movable in this.
• a locking device By means of a locking device, the first seat rail 45 with the second seat rail 46 can be locked.
• An unlocking unit which comprises an unlocking bracket 44, is used to unlock the
• the Entriegelungsbügel 44 is in a front in the direction of travel of the
• Vehicle seat 1 arranged and pivotally mounted about a presently extending in the transverse direction pivot axis. By pulling on the Entriegelungsbügel 44 in the vertical upward direction it is pivoted about the pivot axis, whereby the locking device is unlocked.
• the unlocking lever 44 and the pivot axis are kinematically associated with the sub-frame 5 and the first seat rail 45. This means that when moving the seat part 2 in the direction of travel moves
• the backrest 10 is covered with a cover 28 and has a foam part 30 in the present case.
• a headrest 40 is provided in a vertically upper portion of the backrest 10.
• the ventilation openings 16, 18 are approximately parallel to each other and approximately in the direction of travel.
• Ventilation openings 16, 18 are arranged offset from each other in the transverse direction.
• a first fan 32 is arranged, which sucks air from behind and transported forward into a duct system 14.
• a second fan 34 is disposed within the second vent opening 18, which also sucks air from behind and transported forward into the duct system 14.
• Spacer knit 26 on.
• the air drawn in by the fans 32, 34 is thus conveyed through the channel system 14 into the spacer fabric 26.
• Spacer knit 26 thus extends predominantly parallel to the channel system 14 and to the support surface 20.
• the transported in the spacer knitted fabric 26 continues to flow in the direction of travel forward, through the reference 28 and on an occupant, or past this.
• the spacer fabric 26 is made of thin threads in each direction.
• the spacer fabric 26 is mat-shaped and is about ten millimeters thick. As a result, air can flow in each direction, in particular in the vertical direction from top to bottom through the spacer knitted fabric 26.
• the knitted fabric is dimensionally stable, but compressible.
• the spacer fabric 26 is shown here only in FIG. 2, in FIG. 1 it is removed.
• the reference 28 is shown only in Fig. 2 and removed in Fig. 1.
• the channel system 14 arranged behind the spacer knitted fabric 26 is formed in the foam part 30 of the backrest 10, in the present case milled out. The channel system 14 is thus located in the front in the direction of travel region of the backrest 10 and the foam member 30. In the embodiment shown here, the channel system 14th
• Area the channel system 14 comprises two each in the transverse direction
• the channel system 14 is designed waisted and thus has there a waisted zone 36 on.
• the ventilation openings 16, 18 open into a first upper wing region 52 and into a second upper wing region 54 of the channel system 14, which are provided in the upper region of the channel system 14, ie in the vertical direction above the waisted zone 36.
• the channel system 14 thus extends flat from the mouth areas of the ventilation openings 16, 18 away.
• the first upper wing portion 52 and the second upper wing portion 54 are inclined to the vertical direction and inclined to the transverse direction and approximately perpendicular to the direction of travel.
• the extent of the upper wing portions 52, 54 perpendicular to the direction of travel is hereinafter referred to as the width 50.
• a first lower wing region 56 and in a second lower wing region 58 are arranged, which together form an end zone 60.
• the extent of the end zone 60 in the transverse direction is greater than the extension of the waisted zone 36 in the transverse direction.
• the channel system 14 thus extends approximately parallel to a plane which is defined by the front of the backrest 10 and which extends approximately in the vertical direction and in the transverse direction. That too
• Spacer fabric 26 extends approximately parallel to a plane defined by the front of backrest 10 and extending in the vertical and transverse directions.
• the channel system 14 In the direction of travel, the channel system 14 has an approximately constant thickness 38. This means the extension of the channel system 14 perpendicular to the
• Front of the backrest 10, so approximately in the direction of travel, is approximately constant.
• the width 50 of the upper wing portions 52, 54 is greater than the thickness 38 of the channel system 14.
• the extension of the lower wing portions 56, 58 in the transverse direction is greater than the thickness 38 of the channel system 14.
• the extension of the end zone 60 in Transverse direction greater than the thickness 38 of
• the thickness 38 corresponds approximately to the extent of the spacer fabric 26 in the direction of travel, that is to say approximately ten millimeters.
• the thickness 38 is between five and twenty millimeters.
• the thickness 38 of the channel system 14 is significantly smaller than the areal extent of the channel system 14 perpendicular thereto, ie the extension parallel to the spacer fabric 26 in the transverse direction and approximately in the vertical direction.
• a first spacer 22 and a second spacer 24 are further provided.
• the spacers 22, 24 protrude from the Foam part 30 through the channel system 14 through forward, ie in
• Embodiment are the spacers 22, 24 in the transverse direction
• the spacers 22, 24 are formed integrally with the foam part 30. This means production technology, the channel system 14 is milled around the spacers 22, 24 around from the foam member 30. Alternatively, it is also conceivable to design the spacers 22, 24 as separate components and to connect them to the foam part 30, in particular to bond them.
• the spacer fabric 26 is thus on the support surface 20 and on the spacers 22, 24 and is glued there in the present case.
• the channel system 14 is divided by the spacers 22, 24 into a plurality of individual channels.
• the spacers 22, 24, as already mentioned, are arranged next to one another in the transverse direction.
• the said channels therefore run side by side in the vertical direction.
• the air sucked in by the two fans 32, 34 out of the area behind the backrest 10 thus first flows through the two ventilation openings 16, 18 arranged approximately parallel in the direction of travel. From there, the air flows into the channel system 14 formed in the foam part 30. From the duct system 14, the air then flows into the spacer fabric 26, therethrough and through the cover 28 forwards.
• the air is thereby distributed relatively uniformly over the entire surface of the spacer knit 26 and thus comes out relatively evenly from the cover 28 to the front.

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• Engineering & Computer Science (AREA)
• Aviation & Aerospace Engineering (AREA)
• Transportation (AREA)
• Mechanical Engineering (AREA)
• Chair Legs, Seat Parts, And Backrests (AREA)

Applications Claiming Priority (4)

Publications (1)

Family

ID=47990769

Family Applications (1)

Country Status (2)

Families Citing this family (2)

Citations (5)

Family Cites Families (7)

• 2012
  • 2012-02-09 DE DE201210002645 patent/DE102012002645A1/de not_active Ceased
  • 2012-09-29 WO PCT/EP2012/004120 patent/WO2013056786A1/de active Application Filing

Patent Citations (5)

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