EP4010222A1 - Foldable seat back remaining in parallel level - Google Patents

Foldable seat back remaining in parallel level

Info

Publication number
EP4010222A1
EP4010222A1 EP20852164.1A EP20852164A EP4010222A1 EP 4010222 A1 EP4010222 A1 EP 4010222A1 EP 20852164 A EP20852164 A EP 20852164A EP 4010222 A1 EP4010222 A1 EP 4010222A1
Authority
EP
European Patent Office
Prior art keywords
seat back
seat
back system
group
service table
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP20852164.1A
Other languages
German (de)
French (fr)
Other versions
EP4010222A4 (en
Inventor
Onur Emre DEMIREL
Mustafa KOÇYIGIT
Önder AYVAZOGLU
Necati ALTUNOK
Faruk Altan YILDIRIM
Ismail Özcan
Aykut GÜNER
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.)
Assan Hanil Otomotiv Sanayi ve Ticaret AS
Original Assignee
Assan Hanil Otomotiv Sanayi ve Ticaret AS
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 Assan Hanil Otomotiv Sanayi ve Ticaret AS filed Critical Assan Hanil Otomotiv Sanayi ve Ticaret AS
Publication of EP4010222A1 publication Critical patent/EP4010222A1/en
Publication of EP4010222A4 publication Critical patent/EP4010222A4/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/80—Head-rests
    • B60N2/806—Head-rests movable or adjustable
    • B60N2/838—Tiltable
    • B60N2/856—Tiltable movable to an inoperative or stowed 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
    • B60N2/02—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
    • 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
    • B60N2/2222—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 the back-rest having two or more parts
    • 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
    • B60N2/80—Head-rests
    • B60N2/879—Head-rests with additional features not related to head-rest positioning, e.g. heating or cooling devices or loudspeakers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N3/00—Arrangements or adaptations of other passenger fittings, not otherwise provided for
    • B60N3/001—Arrangements or adaptations of other passenger fittings, not otherwise provided for of tables or trays
    • B60N3/002—Arrangements or adaptations of other passenger fittings, not otherwise provided for of tables or trays of trays
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N3/00—Arrangements or adaptations of other passenger fittings, not otherwise provided for
    • B60N3/001—Arrangements or adaptations of other passenger fittings, not otherwise provided for of tables or trays
    • B60N3/002—Arrangements or adaptations of other passenger fittings, not otherwise provided for of tables or trays of trays
    • B60N3/004—Arrangements or adaptations of other passenger fittings, not otherwise provided for of tables or trays of trays of foldable trays mounted on the back-rest

Definitions

  • Invention relates to back used as back breaking in heavy and light commercial vehicle seats and in all vehicle seats.
  • the invention particularly relates to seat back remaining in parallel position even in case of changing seat back angle, offering aesthetic appearance thanks to feature of being hidden into seat and offering advantage in terms of weight due to comprising less parts in comparison to current systems.
  • Passenger seats used in public transports basically comprises back, seat, moving mechanism and headrest.
  • Moving mechanism is used to change position/angle of back and in some cases, seat.
  • Headrests of different features and designs are used in seats of public transports used today such as bus, minibus etc. Headrest can be uniform with back as well as designed separately.
  • One example of said embodiments is the invention disclosed under patent numbered TR201617662 and entitled “A Complete Seat”.
  • the invention relates to a complete seat opening outward in stages and functioning as back support in the first stage, as glass holder and tray in the second stage, also capable to be inflated by hot or cold air and also capable to be filled by air of differing pressure as well as by air of differing temperature and comprising an inflatable member provided to keep inner side at a preferred temperature value by circulating air therein constantly.
  • Another example is the invention disclosed under utility model numbered TR201705820 and entitled “Adjustable Tablet”.
  • the invention relates to an adjustable tablet mounted to rear part of passenger seats in transport vehicles such as bus, minibus, train, ship, aircraft etc. and used by passengers to put their food, drinks and properties and particularly adjustable to an angle preferred by passengers.
  • Present invention relates to back meeting all above mentioned needs, eliminating all disadvantages and bringing some advantages and used as back breaking in heavy and light commercial vehicle seats and as service table in all vehicle seats.
  • the purpose of invention is to provide parallel position of tablet or upper back in all cases when seat back angle is changed thanks to seat back embodiment developed hereunder.
  • Purpose of the invention is to provide elimination of adverse consequences that might occur in visual terms thanks to the system of hiding seat back into the seat.
  • Another purpose of the invention is to provide less weight of total seat weights thanks to comprising less parts of seat back in comparison to current systems.
  • a further purpose of the invention is to provide protection of position of parallel to horizontal plane in case seat back angle is changed thanks to balance wire that seat back comprises.
  • Another purpose of the invention is to provide stopping and remaining of upper back group parallel to horizontal plane thanks to stopper that seat back comprises.
  • a further purpose of the invention is to provide bringing seat back from folded position to current position thanks to spiral spring that seat back comprises.
  • Figure 1 shows general schematic view of demounted seat back system of the invention.
  • Figure 2 is schematic general view of upper back group in current position.
  • Figure 3 is schematic general view of upper back group in folded position.
  • Figure 4 is a schematic general view of seat back system cross-section.
  • Figure 5 is a front schematic general view of seat back system in folded position.
  • Figure 6 is a schematic general view of seat back system in folded position.
  • Figure 6a is a schematic general view of stopper part and balance wire when seat back system is in folded position.
  • Figure 6b is a schematic general view of back frame and balance wire when seat back system is in folded position.
  • Figure 7 is a schematic general view of seat back system in current position.
  • Figure 7a is a schematic general view of stopper part and balance wire when seat back system is in current position.
  • Figure 7b is a schematic general view of back frame and balance wire when seat back system is in current position.
  • seat back system (10) used as back breaking in heavy and light commercial vehicle seats and as service table (17) in all vehicle seats of this invention is disclosed only as an example for the purpose of better understanding of the subject and described in a manner not causing any restrictive effect.
  • Seat back system (10) shown in figure 1 can be used in commercial vehicle seats, aircraft seats and seats having service table (17). Stopper part (12) is placed in said seat back system (10) for providing stopping of upper back group (15) and keeping it in parallel to horizontal axis. Said upper back group (15) supports seat headrest and shoulder area and is also used as service table (17) thanks to housing provided in rear area. Said upper back group (15) is connected to back frame
  • Said seat back system (10) comprises balance wire (11) providing remaining of upper back group (15) parallel to horizontal axis.
  • Spiral spring (13) is provided to provide return from folded position to current position. It provides advantage in visual terms thanks to hidden seat back system (10) into back and head rest parts of seat as shown in figure 2.
  • Seat back system (10) shown in Figure 3 provides service table (17) to remain in position parallel to ground in all cases when back angle is changed.
  • Lower connection point of back frame (14) provided in seat back system (10) shown in figure 4 forms turning center.
  • folded seat upper back group (15) folded independent of change in seat back angle or service table (37) is provided on 4-arm seat back system (10). Length of parts used in said seat back system (10) should have correct position and connection angle.
  • upper back group (15) or service table (17) shown in figure 6a comes to open position, it contacts stopper part (12) and conducts locking.
  • Balance wire (11) located on other side of said stopper part (12) becomes active.
  • seat back frame (14) protects its parallel position with horizontal thanks to folded upper back group (15) or service table (17) balance wire (11) and stopper part (12).
  • Button (16) is lifted to bring folded upper back group (15) or service table (17) shown in figure 7 to former/current position. Thus lock is unlocked and spiral spring (13) is brought to former position.
  • Balance wire (11) angle, length and position shown in figure 7a and stopper part (12) position, angle and connection distance are to be the same.
  • Balance wire (11) shown in figure 7b works in constantly tightened logic.
  • Said balance wire (11) provides simplification of seat back system (10) and obtaining lightness by use of less number of parts.

Landscapes

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

Abstract

Invention relates to seat back system (10) used as back breaking in heavy and light commercial vehicle seats and as service table (17) in all vehicle seats. Said seat back system (10) can be used in commercial vehicle seats, aircraft seats and seats having service table (17). Stopper part (12) is placed in said seat back system (10) for providing stopping of upper back group (15) and keeping it in parallel to horizontal axis. Said upper back group (15) supports seat headrest and shoulder area and is also used as service table (17) thanks to housing provided in rear area.

Description

FOLDABLE SEAT BACK REMAINING IN PARALLEL LEVEL
Technical Field
Invention relates to back used as back breaking in heavy and light commercial vehicle seats and in all vehicle seats.
The invention particularly relates to seat back remaining in parallel position even in case of changing seat back angle, offering aesthetic appearance thanks to feature of being hidden into seat and offering advantage in terms of weight due to comprising less parts in comparison to current systems.
State of the Art
One of the most important aspects in design of vehicles used for passenger transport both inter cities and in-cities is the production of seats that can provide adequate comfort during long travels. Passenger seats used in public transports basically comprises back, seat, moving mechanism and headrest. Moving mechanism is used to change position/angle of back and in some cases, seat. Headrests of different features and designs are used in seats of public transports used today such as bus, minibus etc. Headrest can be uniform with back as well as designed separately.
Today seats of vehicles offering intercity passenger transport in particular have desks/trays called tablet. Said tablets are mounted onto back of seat basically and are folded and closed when not used. Said tables have glass holder for placement of glasses without effect from vehicle vibration and also recently various embodiment developed for placing tablet computers and mobile phones. Even though said tablets are developed to provide comfort during travelling, keeping their parallel position to ground becomes difficult in case of tilting the seat as they are connected to seat back. One example of said embodiments is the invention disclosed under patent numbered TR201617662 and entitled “A Complete Seat”. The invention relates to a complete seat opening outward in stages and functioning as back support in the first stage, as glass holder and tray in the second stage, also capable to be inflated by hot or cold air and also capable to be filled by air of differing pressure as well as by air of differing temperature and comprising an inflatable member provided to keep inner side at a preferred temperature value by circulating air therein constantly. Another example is the invention disclosed under utility model numbered TR201705820 and entitled “Adjustable Tablet”. The invention relates to an adjustable tablet mounted to rear part of passenger seats in transport vehicles such as bus, minibus, train, ship, aircraft etc. and used by passengers to put their food, drinks and properties and particularly adjustable to an angle preferred by passengers. Although there are several studies on service trays used in passenger transport vehicles, there are no embodiments developed for use in light and heavy commercial vehicles. Although cars have embodiments opened between back seats and functioning as glass holder and tablet, number of studies made for light commercial vehicles is few.
Today subject to change of angle of tablets used in seat backs when seat back angle changes, upper back part or loss of parallel position of tablet with horizontal plane and placement of current embodiments outside seat and thus comprising many parts all together cause disadvantages both in visual and weight aspects. As a result, the need for a foldable seat back remaining in parallel level eliminating the disadvantages available in the related art and inadequacy of existing solutions has necessitated development in the related art.
Brief Description of the Invention
Present invention relates to back meeting all above mentioned needs, eliminating all disadvantages and bringing some advantages and used as back breaking in heavy and light commercial vehicle seats and as service table in all vehicle seats.
From background of the related art, the purpose of invention is to provide parallel position of tablet or upper back in all cases when seat back angle is changed thanks to seat back embodiment developed hereunder.
Purpose of the invention is to provide elimination of adverse consequences that might occur in visual terms thanks to the system of hiding seat back into the seat.
Another purpose of the invention is to provide less weight of total seat weights thanks to comprising less parts of seat back in comparison to current systems.
A further purpose of the invention is to provide protection of position of parallel to horizontal plane in case seat back angle is changed thanks to balance wire that seat back comprises.
Another purpose of the invention is to provide stopping and remaining of upper back group parallel to horizontal plane thanks to stopper that seat back comprises.
A further purpose of the invention is to provide bringing seat back from folded position to current position thanks to spiral spring that seat back comprises. The structural and characteristics features of the invention and all advantages will be understood better in detailed descriptions with the figures given below and with reference to the figures, and therefore, the assessment should be made taking into account the said figures and detailed explanations.
Brief Description of Figures
In order to make the embodiment and additional members being subject of the present invention as well as the advantages clearer for better understanding, it should be assessed with reference to the fallowing described figures.
Figure 1 shows general schematic view of demounted seat back system of the invention.
Figure 2 is schematic general view of upper back group in current position.
Figure 3 is schematic general view of upper back group in folded position.
Figure 4 is a schematic general view of seat back system cross-section.
Figure 5 is a front schematic general view of seat back system in folded position.
Figure 6 is a schematic general view of seat back system in folded position.
Figure 6a is a schematic general view of stopper part and balance wire when seat back system is in folded position.
Figure 6b is a schematic general view of back frame and balance wire when seat back system is in folded position.
Figure 7 is a schematic general view of seat back system in current position.
Figure 7a is a schematic general view of stopper part and balance wire when seat back system is in current position.
Figure 7b is a schematic general view of back frame and balance wire when seat back system is in current position.
Reference Numbers
10. Seat back system
11 . Balance wire
12. Stopper part
13. Spiral spring
14. Back frame
15. Upper back group
16. Button 17. Service table
Detailed Description of the Invention
In this detailed description, seat back system (10) used as back breaking in heavy and light commercial vehicle seats and as service table (17) in all vehicle seats of this invention is disclosed only as an example for the purpose of better understanding of the subject and described in a manner not causing any restrictive effect.
Seat back system (10) shown in figure 1 can be used in commercial vehicle seats, aircraft seats and seats having service table (17). Stopper part (12) is placed in said seat back system (10) for providing stopping of upper back group (15) and keeping it in parallel to horizontal axis. Said upper back group (15) supports seat headrest and shoulder area and is also used as service table (17) thanks to housing provided in rear area. Said upper back group (15) is connected to back frame
(14) located in part of seat where back rests on and supporting sponge. Said seat back system (10) comprises balance wire (11) providing remaining of upper back group (15) parallel to horizontal axis. Spiral spring (13) is provided to provide return from folded position to current position. It provides advantage in visual terms thanks to hidden seat back system (10) into back and head rest parts of seat as shown in figure 2. Seat back system (10) shown in Figure 3 provides service table (17) to remain in position parallel to ground in all cases when back angle is changed.
Lower connection point of back frame (14) provided in seat back system (10) shown in figure 4 forms turning center. The end of turning center point corresponding to folded upper back group
(15) forms turning centre of upper back group (15). Lower rotating centre is fixed reference point by lower one of connection points of balance wire (11) corresponding to turning centre above and below. Free rotation movement is possible because said folded upper back group (15) is connected from 2 points. In addition, the distance between back frame (14) and upper back group (15) rotation centres should be equal to balance wire length (11). Since weight centre of said upper back group (15) is on front side, end section tries to go downward and going down of upper back group (15) is prevented by help of balance wire (11). Total 2 balance wires (11) one on right and one on left of seat back system (10) and a back frame (14) are provided as shown in figure 5. Button (16) placed on the point where said seat back system (10) back frame (14) and service table (17) are connected performs locking and releasing functions.
As shown in figure 6, folded seat upper back group (15) folded independent of change in seat back angle or service table (37) is provided on 4-arm seat back system (10). Length of parts used in said seat back system (10) should have correct position and connection angle. When upper back group (15) or service table (17) shown in figure 6a comes to open position, it contacts stopper part (12) and conducts locking. Balance wire (11) located on other side of said stopper part (12) becomes active. After locking is completed, seat back frame (14) protects its parallel position with horizontal thanks to folded upper back group (15) or service table (17) balance wire (11) and stopper part (12). Button (16) is lifted to bring folded upper back group (15) or service table (17) shown in figure 7 to former/current position. Thus lock is unlocked and spiral spring (13) is brought to former position. Balance wire (11) angle, length and position shown in figure 7a and stopper part (12) position, angle and connection distance are to be the same. Balance wire (11) shown in figure 7b works in constantly tightened logic. Said balance wire (11) provides simplification of seat back system (10) and obtaining lightness by use of less number of parts.

Claims

1. A seat back system (10) used in heavy and light commercial vehicles as back breaking, as service table (17) in all vehicle seats and characterized by comprising, a stopper part
(12) providing stopping upper back group (15) and providing remaining in parallel position to horizontal axis, a balance wire (11) providing upper back group (15) in parallel position to horizontal axis.
2. A seat back system (10) according to claim 1 characterized by comprising, a spiral spring
(13) providing changing from folded position to current position.
3. A seat back system (10) according to claim 1 characterized by comprising, upper back group (15) foldable as service table (17) by help of housings provided in rear area, supporting seat headrest and shoulder area.
4. A seat back system (10) according to claim 1 characterized in that, being hidden in back and headrest sections of seat.
5. A seat back system (10) according to claim 1 characterized by comprising, rotating centre occurring at lower connection point of back frame (14).
6. A seat back system (10) according to claim 1 characterized by comprising, the upper back group (15) rotating centre forming at the end corresponding to folded upper back group (15) of rotating centre point.
7. A seat back system (10) according to claim 1 characterized in that, balance wire (11) corresponding to upper and lower rotating centre are constant reference points of lower rotating centre with the one on lower part from connection points.
8. A seat back system (10) according to claim 1 characterized in that, folded upper group (15) is connected from 2 points for conduct of free rotation movement.
9. A seat back system (10) according to claim 1 characterized in that, distance between back frame (14) and upper back group (15) rotation centres is equal to balance wire (11) length.
10. A seat back system (10) according to claim 1 characterized in that, the angle, length and position of balance wire (11) and position, angle and connection distance of stopper part (12) are the same.
11. A seat back system (10) according to claim 1 characterized in that, upper back group (15) weight centre is on front side.
12. A seat back system (10) according to claim 1 characterized by comprising, a button (16) placed on the point where seat back system (10) back frame (14) and service table (17) are interconnected and performing locking and releasing operations.
13. A seat back system (10) developed for use in commercial vehicle seats, aircraft seats and seats having service table (17) characterized in that, after locking is completed, when seat back frame (14) angle is changed, parallel position of folder upper back group (15) or service table (17) to horizontal axis is protected by balance wire (11) and stopper part (12).
14. A seat back system (10) according to claim 13 characterized in that, when folded upper back group (15) or service table (17) is in open position, it contacts stopper part (12) and performs locking and meanwhile balance wire (11) placed on other side of stopper part (12) is also active.
15. A seat back system (10) according to claim 13 characterized in that, when button (16) is raised, lock unlocks and spiral spring (13) is activated and folded upper back group (15) or service table (17) goes into former/current position.
EP20852164.1A 2019-08-09 2020-08-05 FOLDING SEAT BACK STAYING IN PARALLEL Withdrawn EP4010222A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR2019/12174A TR201912174A2 (en) 2019-08-09 2019-08-09 FOLDING SEAT BACK REMAINING PARALLEL LEVEL
PCT/TR2020/050684 WO2021029840A1 (en) 2019-08-09 2020-08-05 Foldable seat back remaining in parallel level

Publications (2)

Publication Number Publication Date
EP4010222A1 true EP4010222A1 (en) 2022-06-15
EP4010222A4 EP4010222A4 (en) 2022-12-14

Family

ID=74570668

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20852164.1A Withdrawn EP4010222A4 (en) 2019-08-09 2020-08-05 FOLDING SEAT BACK STAYING IN PARALLEL

Country Status (3)

Country Link
EP (1) EP4010222A4 (en)
TR (1) TR201912174A2 (en)
WO (1) WO2021029840A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020120852A1 (en) * 2020-08-07 2022-02-10 Man Truck & Bus Se vehicle seat

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11165572A (en) * 1997-12-02 1999-06-22 Mazda Motor Corp Automotive seating equipment
DE102004049807A1 (en) * 2004-10-12 2006-04-13 Bayerische Motoren Werke Ag Motor vehicle seat has upper seat back section pivotable around hinge by such amount that upper seat back section occupies approximately horizontal position in which it can be used as support surface
FR2912700B1 (en) * 2007-02-20 2009-04-03 Peugeot Citroen Automobiles Sa DEVICE FOR CONTROLLING A REAR SEAT WITH A FOLDING BACK SECTION INTEGRATING A REMOVABLE HEADREST.

Also Published As

Publication number Publication date
WO2021029840A1 (en) 2021-02-18
EP4010222A4 (en) 2022-12-14
TR201912174A2 (en) 2021-02-22

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