GB2548415A - Seat back and insert - Google Patents

Seat back and insert Download PDF

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Publication number
GB2548415A
GB2548415A GB1605285.4A GB201605285A GB2548415A GB 2548415 A GB2548415 A GB 2548415A GB 201605285 A GB201605285 A GB 201605285A GB 2548415 A GB2548415 A GB 2548415A
Authority
GB
United Kingdom
Prior art keywords
seat back
insert
cavity
width
facing surface
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Withdrawn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
GB1605285.4A
Other versions
GB201605285D0 (en
Inventor
Hodgkinson Alex
Conroy Joseph
Challenor Adam
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.)
Acro Aircraft Seating Ltd
Original Assignee
Acro Aircraft Seating Ltd
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
Priority claimed from GB201604655A external-priority patent/GB2548411B/en
Priority claimed from GB1604654.2A external-priority patent/GB2548410A/en
Priority claimed from GB1604653.4A external-priority patent/GB2548409B/en
Application filed by Acro Aircraft Seating Ltd filed Critical Acro Aircraft Seating Ltd
Publication of GB201605285D0 publication Critical patent/GB201605285D0/en
Priority to US15/462,667 priority Critical patent/US20170267142A1/en
Priority to EP17161570.1A priority patent/EP3222525A1/en
Publication of GB2548415A publication Critical patent/GB2548415A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENTS OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
    • B64D11/00—Passenger or crew accommodation; Flight-deck installations not otherwise provided for
    • B64D11/06—Arrangements of seats, or adaptations or details specially adapted for aircraft seats
    • B64D11/0647—Seats characterised by special upholstery or cushioning features
    • 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
    • B60N2/64—Back-rests or cushions
    • B60N2/643—Back-rests or cushions shape of the back-rests
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/58—Seat coverings
    • B60N2/60—Removable protective coverings
    • B60N2/6018—Removable protective coverings attachments thereof
    • B60N2/6027—Removable protective coverings attachments thereof by hooks, staples, clips, snap fasteners 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
    • B60N2/68—Seat frames
    • B60N2/686—Panel like structures
    • 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
    • B60N2/70—Upholstery springs ; Upholstery
    • 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
    • B60N2/70—Upholstery springs ; Upholstery
    • B60N2/7011—Upholstery springs ; Upholstery of substantially two-dimensional shape, e.g. hammock-like, plastic shells, fabrics
    • 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
    • B60N2/70—Upholstery springs ; Upholstery
    • B60N2/7023—Coach-like constructions
    • B60N2/7035—Cushions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENTS OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
    • B64D11/00—Passenger or crew accommodation; Flight-deck installations not otherwise provided for
    • B64D11/06—Arrangements of seats, or adaptations or details specially adapted for aircraft seats
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENTS OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
    • B64D11/00—Passenger or crew accommodation; Flight-deck installations not otherwise provided for
    • B64D11/06—Arrangements of seats, or adaptations or details specially adapted for aircraft seats
    • B64D11/0639—Arrangements of seats, or adaptations or details specially adapted for aircraft seats with features for adjustment or converting of seats
    • B64D11/064—Adjustable inclination or position of seats
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENTS OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
    • B64D11/00—Passenger or crew accommodation; Flight-deck installations not otherwise provided for
    • B64D11/06—Arrangements of seats, or adaptations or details specially adapted for aircraft seats
    • B64D11/0649—Seats characterised by special features for reducing weight
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/68—Seat frames
    • B60N2/682—Joining means
    • B60N2002/684—Joining means the back rest being mounted or joined with an easy attachment system to the seat

Abstract

A seat back 1 comprises a rear wall (2, figure 1A) bordered by side walls (3a, 3b, figure 1A) projecting forward from the rear wall. An insert 5 for supporting the back of a person, is disposed at least partially in a cavity (4, figure 1A) defined in front of the rear wall and between opposing surfaces of the side walls. The seat back and insert are shaped to restrict downward movement of the insert 5 towards the base of the seat back (e.g. forming a geometric lock, requiring no mechanical fasteners or connectors). Preferably the seat back comprises recesses 7a, 7b in the forward facing surface 9a, 9b of a perimeter wall (3, figure 1A) for engaging lateral tabs or protrusions 8a, 8b of the insert. The cavity and insert may taper. Preferably, the insert comprises a curved recess 10 in its bottom edge and the base of the cavity is not filled by the insert, e.g. for accommodating a seat base (11, figure 3). The insert may be resiliently deformable, e.g. made of foam. A row of vehicle seats, e.g. aircraft seats comprising the seat back is disclosed.

Description

SEAT BACK AND INSERT
The present invention relates to seats, in particular to seat backs and seat back inserts for aircraft seats.
Various types of aircraft seat are known, which generally comprise a seat base, a seat back and one or more armrests. In order to satisfy airline requirements, it is beneficial to make aircraft seats lighter. It is also beneficial to minimise the time taken to assemble seats during manufacture and the time take to repair seats or replace parts thereof.
In order to meet safety requirements, the various components of a seat must be securely held together. A particular consideration relates to the cushioning material provided on the front face of a seat back. In this respect, when a passenger leans against a seat back, the passenger will exert a force on the cushioning which urges the cushioning to move downwards. This will, for example, be most pronounced when a passenger moves from an initial upright position to a more relaxed, or slumped, position within the seat. If the cushioning is not securely attached to the seat back, movement of the passenger's back against the seat back will tend to pull the cushioning down. This could cause obvious problems and safety issues, especially on an aircraft.
Whilst the cushioning could be glued to the seat back, this could then cause problems in the event that the cushioning requires replacement or repair. In order to sufficiently secure the cushioning in place, sufficient adhesion would be required which would then make removal of the cushioning very difficult, if not impossible.
An alternative approach is the use of mechanical fasteners. Whilst these do not add significant weight individually, when the number of fasteners used for each seat and the large number of seats present on an aircraft is taken into consideration, the unwanted weight is significant. Further, the time taken to install the cushioning using fasteners during manufacture/installation and the time taken to unfasten during disassembly for repair or fitting of replacement parts would also be considerable, especially considering the large number of seats often involved.
It is, therefore, an object of the present invention to seek to alleviate the above identified problems.
SUMMARY OF THE INVENTION
According to one aspect of the present invention, there is provided a seat back, the seat back comprising a rear wall bordered by side walls projecting forward from the rear wall, said rear wall and side walls defining a cavity in front of the rear wall and between opposing surfaces of the side walls, wherein the seat back comprises an insert disposed at least partially within the cavity, said insert for supporting the back of a person leaning against the front of the seat back, wherein the seat back and insert are shaped such that when the insert is positioned within the cavity, movement of the insert towards the base of the seat back is restricted.
Preferably, movement of the insert towards the base of the seat back is prevented.
Preferably, the side walls are part of a perimeter wall projecting forward from the rear wall, said rear wall and perimeter wall defining the cavity in front of the rear wall and between opposing surfaces of the perimeter wall.
Preferably, the width of the cavity and the insert tapers from a first width to a second width, wherein the first width is positioned above the second width and wherein the first width is greater than the second width.
In this respect, it will be appreciated that the width of the cavity is defined by the distance between opposing side walls of the seat back.
Preferably, the insert fits snugly within the cavity.
Remarkably, the present invention provides a seat back with an insert disposed within a cavity of the seat back, wherein the insert is secured within the cavity by a "geometric lock". That is, no mechanical fasteners or connectors are required; rather the insert is simply inserted into the cavity of the seat back and engages with the side walls of the seat back in such a way that downward movement of the insert within the cavity is prevented.
Once the insert has been correctly positioned, an outer fabric layer can be positioned over the insert and secured to the seat back to complete the forward facing surface of the seat back.
Preferably, the insert comprises a deformable material.
Preferably, the insert comprises a resilient material.
Preferably, the Insert comprises foam.
Preferably, the width of the cavity and the insert tapers from a first width positioned within an upper part of the cavity and insert to a second width below the first width.
Preferably, the first width is at least about 10% greater than the second width, preferably at least about 15%, preferably at least about 18%, preferably about 18%.
Preferably, the second width of the cavity and insert is positioned in a central part and/or lower part of the cavity and insert.
Preferably, the seat back comprises one or more shaped profiles for mutual engagement with one or more shaped profiles of the insert, wherein said shaped profiles are for restricting, preferably preventing, downward movement of the insert relative to the seat back when the insert is positioned within the cavity.
Preferably, the seat back comprises one or more recesses for engagement with one or more protrusions on the insert and for restricting, preferably preventing, downward movement of the insert relative to the seat back when the insert is positioned within the cavity.
Preferably, the seat back comprises a recess in a forward facing surface thereof for engagement with a protrusion on the insert.
Preferably, the seat back comprises a recess in a forward facing surface of the perimeter wall for engagement with a protrusion on the insert.
Preferably, the seat back comprises a recess in a forward facing surface of its upper edge for engagement with a protrusion on the insert.
Preferably, each side wall comprises an upper part which is sloped from the or a setback position of the forward facing surface of the upper edge to the forward facing surface of the remainder of each side wall.
Preferably, the seat back comprises a recess In a forward facing surface of the upper wall of the perimeter wall for engagement with a protrusion of the insert.
Preferably, the forward facing surface of the perimeter wall is sloped from the or a setback position of the forward facing surface of the upper wall to the forward facing surface of each side wall of the perimeter wall.
Preferably, the Insert Is shaped to fit within the cavity between the side walls and to overlap the forward facing surface of the or an upper edge of the seat back.
Preferably, the insert is shaped to fit within the cavity between the side walls of the perimeter wall and to overlap the forward facing surface of the upper wall of the perimeter wall.
This is particularly advantageous because it means that the upper forward facing edge of the seat back is provided with additional cushioning on its forward facing surface. As a result, this increases comfort for a passenger in the event that they rest their head against said surface, whilst at the same time increasing the "geometric lock" of the insert within the cavity and the prevention of downward movement.
Preferably, the insert comprises one or more lateral tabs for engagement with the sloped forward facing surface of the perimeter wall or sloped forward facing surface of the side walls.
Preferably, the perimeter wall of a lower part of the seat back is substantially semi-circular.
Preferably, the lower part of the seat back is substantially semi-circular.
Preferably, the depth of the cavity is greater in a lower part than in an upper part of the seat back.
Preferably, the depth of the cavity is greater at the base of the seat back than in the upper part of the seat back.
Preferably, the depth of the perimeter wall is greater in the lower part than in the upper part of the seat back.
Preferably, the depth of the perimeter wall is greater at the base of the seat back than in the upper part of the seat back.
Preferably, the perimeter wall is provided around at least the side edges and upper edge of the rear wall.
Preferably, the perimeter wall is provided around substantially all of the rear wall.
Preferably, "around substantially all of the rear wall" means around at least about 90% of the rear wall, preferably, around at least about 95%, preferably at least about 98%, preferably at least about 99% of the rear wall.
Preferably, the perimeter wall is provided around all of the rear wall.
Preferably, the rear wall does not cross the space between opposing surfaces of the perimeter wall.
Preferably, the length of the insert is less than the length of the cavity.
Preferably, the base of the cavity is not filled by the insert. This allows part of the cushioning of the seat base of the seat to be positioned within the seat back cavity which provides structural advantages, for example by restricting or preventing removal or upward movement of the seat base cushioning when the insert is positioned within the cavity.
It is additionally advantageous for the base of the cavity to not be filled because it allows the seat base of the seat to be accommodated within the cavity when a user opts to recline the seat back. This is particularly the case in embodiments comprising a seat back that pivots about side connectors during recline causing the base of the seat back to move forward during recline.
Preferably, the insert comprises a recess, preferably a curved recess, in its bottom edge such that, when inserted into the cavity, the insert does not extend to the base of the cavity.
According to another aspect of the present invention, there is provided a seat comprising a seat back as described herein.
Preferably, the seat comprises a seat base, a seat frame and a seat back as described herein.
Preferably, the seat is a vehicle seat, preferably an aircraft seat.
According to a further aspect of the present invention, there is provided a row of seats comprising a plurality of seats as described herein.
It will be appreciated that reference to "one or more" includes reference to "a plurality".
Within this specification, the term "about" means plus or minus 20%, more preferably plus or minus 10%, even more preferably plus or minus 5%, most preferably plus or minus 2%.
Within this specification embodiments have been described in a way which enables a clear and concise specification to be written, but it is intended and will be appreciated that embodiments may be variously combined or separated without parting from the invention. For example, it will be appreciated that all preferred features described herein are applicable to all aspects of the invention described herein and vice versa.
DETAILED DESCRIPTION
Example embodiments of the present invention will now be described with reference to the accompanying Figures, in which
Figures lA and IB show front views of the seat back and insert;
Figure 2A shows an exploded perspective view of the seat back and insert;
Figure 2B shows a perspective view of the seat back and insert with the insert positioned within the seat back of the cavity; and
Figure 3 shows a row of seats comprising seat backs of the present invention.
The present invention reiates to a seat back, particuiariy to a seat back for an aircraft seat.
With reference to Figures lA and IB, there is shown a seat back 1 which comprises a rear waii 2 bordered by side waiis 3a, 3b projecting forward from the rear waii 2. The rear waiis 3a, 3b form part of a perimeter wail 3 positioned around the edge of the rear waii 2. In the example shown, the perimeter wall includes side waiis, 3a, 3b, an upper wall 3c and a lower wall 3d. The rear wall 2 and side waiis 3a, 3b define a cavity 4 in front of the rear wall 2 and between opposing surfaces of the side walls 3a, 3b. A resiliently deformable insert 5 is disposed within the cavity 4 and is provided for supporting the back of a person (not shown) ieaning against the front of the seat back 1. Whilst it will be appreciated that various materials could be used, in the present example, the insert is made from a foam material.
The width of the cavity 4 and the insert 5 tapers from a first width wl in an upper part of the cavity/insert, to a second width w2 in a lower part of the cavity/insert, with the first width wl positioned above the second width w2 and the first width wl being greater than the second width w2. As a result, it will be appreciated that the cavity 4 and insert 5 are shaped such that when the insert 5 is positioned within the cavity 4, movement of the insert 5 towards the base of the seat back 1 is prevented. In the example shown, the insert 5 fits snugly within the cavity 4.
Remarkabiy, the present invention provides a seat back 1 with an insert 5 disposed within the cavity 4 of the seat back 1 and secured therein by a "geometric iock". That is, no mechanical fasteners or connectors are required; rather the insert 5 is simpiy inserted into the cavity 4 of the seat back 1 and engages with the side waiis 3a, 3b of the seat back 1 in such a way that downward movement of the insert 5 within the cavity 4 is prevented.
With reference to Figure 3, whiist the insert and associated geometry is no ionger visibie, once the insert 5 has been correctiy positioned, an outer fabric iayer 6 can be positioned over the insert 5 and secured to the seat back 1 to compiete the forward facing surface of the seat back 1 and to hide the insert from the view.
The seat back 1 inciudes shaped profiies 7a, 7b for mutuai engagement with shaped profiies 8a, 8b of the insert 5. The shaped profiies 7a, 7b, 8a, 8b are for preventing downward movement of the insert 5 reiative to the seat back 1 when the insert 5 is positioned within the cavity. In the exampie shown, the shaped profiies 7a, 7b of the seat back take the form of sioped forward facing surfaces 7a, 7b of the perimeter waii 3 which siope forward from a setback position of the forward facing surface 9c of the upper waii 3c to the forward facing surface 9a, 9b of each side waii 3a, 3b.
The shaped profiies 8a, 8b of the insert 5 takes the form of tabs 8a, 8b for engagement with said forward facing surface 9c of the upper wall 3c and the slopes 7a, 7b.
With particuiar reference to Figures lA and 2B, the insert 5 is shaped to fit within the cavity 4 between the side waiis 3a, 3b and to overiap the forward facing surface 9c of the upper waii 3c of the perimeter waii 3.
With reference to Figures lA, IB, 2A and 2B, the iength of the insert 5 is iess than the iength of the cavity 4 and the insert 5 inciudes a curved recess 10. This means that the base of the cavity 4 is not fiiied by the insert 5 and so aiiows part of the cushioning of the seat base 11 of the seat 12 to be positioned within the seat back cavity 4. This provides structurai advantages, for exampie by preventing removai or upward movement of the seat base cushioning 11 when the insert 5 is positioned within the cavity 4.
It is additionally advantageous for the base of the cavity 4 to not be filled because it allows the seat base 11 of the seat 12 to be accommodated within the cavity 4 when a user opts to recline the seat back 1. This is particularly the case in embodiments comprising a seat back 1 that pivots about side connectors during recline causing the base of the seat back to move forward during recline.
It should be understood that various changes and modifications to the presently preferred embodiments described herein will be apparent to those skilled in the art. Such changes and modifications can be made without departing from the spirit and scope of the present invention and without diminishing its attendant advantages. It is therefore intended that such changes and modifications are covered by the appended claims.

Claims (32)

1. A seat back, the seat back comprising a rear wall bordered by side walls projecting forward from the rear wall, said rear wall and side walls defining a cavity in front of the rear wall and between opposing surfaces of the side walls, wherein the seat back comprises an insert disposed at least partially within the cavity, said insert for supporting the back of a person leaning against the front of the seat back, wherein the seat back and insert are shaped such that when the insert is positioned within the cavity, movement of the insert towards the base of the seat back is restricted.
2. A seat back according to claim 1, wherein the side walls are part of a perimeter wall projecting forward from the rear wall, said rear wall and perimeter wall defining the cavity in front of the rear wall and between opposing surfaces of the perimeter wall.
3. A seat back according to claim 1 or 2, wherein the width of the cavity and the insert tapers from a first width to a second width, wherein the first width is positioned above the second width and wherein the first width is greater than the second width.
4. A seat back according to any preceding claim, wherein the width of the cavity and the insert tapers from a first width positioned in an upper part of the cavity and insert to a second width below the first width.
5. A seat back according to claim 3 or 4, wherein the second width of the cavity and insert is positioned in a central part and/or lower part of the cavity and insert.
6. A seat back according to any preceding claim, wherein the seat back comprises one or more shaped profiles for mutual engagement with one or more shaped profiles of the insert, wherein said shaped profiles are for restricting downward movement of the insert relative to the seat back when the insert is positioned within the cavity.
7. A seat back according to any preceding claim, wherein the seat back comprises one or more recesses for engagement with one or more protrusions on the insert and for restricting downward movement of the insert relative to the seat back when the insert is positioned within the cavity.
8. A seat back according to any preceding claim, wherein the seat back comprises a recess in a forward facing surface thereof for engagement with a protrusion on the insert.
9. A seat back according to any of claims 2 to 8, wherein the seat back comprises a recess in a forward facing surface of the perimeter wall for engagement with a protrusion on the insert.
10. A seat back according to any preceding claim, wherein the seat back comprises a recess in a forward facing surface of its upper edge for engagement with a protrusion on the insert.
11. A seat back according to claim 10, wherein each side wall comprises an upper part which is sloped from the setback position of the forward facing surface of the upper edge to the forward facing surface of the remainder of each side wall.
12. A seat back according to any of claims 2 to 11, wherein the seat back comprises a recess in a forward facing surface of the upper wall of the perimeter wall for engagement with a protrusion of the insert.
13. A seat back according to claim 12, wherein the forward facing surface of the perimeter wall is sloped from the setback position of the forward facing surface of the upper wall to the forward facing surface of each side wall of the perimeter wall.
14. A seat back according to any preceding claim, wherein the insert is shaped to fit within the cavity between the side walls and to overlap the forward facing surface of the or an upper edge of the seat back.
15. A seat back according to any of claims 2 to 14, wherein the insert is shaped to fit within the cavity between the side walls of the perimeter wall and to overlap the forward facing surface of the upper wall of the perimeter wall for engagement with a protrusion of the insert.
16. A seat back according to any of claims 11 to 15, wherein the insert comprises one or more lateral tabs for engagement with the sloped forward facing surface of the perimeter wall or sloped forward facing surface of the side walls.
17. A seat back according to any of claims 2 to 16, wherein the perimeter wall of a lower part of the seat back is substantially semi-circular.
18. A seat back according to any preceding claim, wherein the lower part of the seat back is substantially semi-circular.
19. A seat back according to any preceding claim, wherein the depth of the cavity is greater in a lower part than in an upper part of the seat back.
20. A seat back according to any preceding claim, wherein the depth of the cavity is greater at the base of the seat back than in an upper part of the seat back.
21. A seat back according to any preceding claim, wherein the length of the insert is less than the length of the cavity.
22. A seat back according to any preceding claim, wherein the base of the cavity is not filled by the insert.
23. A seat back according to any preceding claim, wherein the insert comprises a recess in its bottom edge such that, when inserted into the cavity, the insert does not extend to the base of the cavity.
24. A seat back according to claim 23, wherein the insert comprises a curved recess in its bottom edge.
25. A seat back according to any of claims 3 to 24, wherein the first width is at least about 10% greater than the second width.
26. A seat back according to any preceding claim, wherein movement of the insert towards the base of the seat back is prevented.
27. A seat comprising a seat back according to any preceding claim.
28. A row of seats comprising a plurality of seats according to claim 27.
29. A seat according to claim 27 or row of seats according to claim 28, comprising an aircraft seat or seats.
30. A seat back substantially as hereinbefore described with reference to the accompanying Figures.
31. A seat substantially as hereinbefore described with reference to the accompanying Figures.
32. A row of seats substantially as hereinbefore described with reference to the accompanying Figures.
GB1605285.4A 2016-03-18 2016-03-30 Seat back and insert Withdrawn GB2548415A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US15/462,667 US20170267142A1 (en) 2016-03-18 2017-03-17 Seat back and insert
EP17161570.1A EP3222525A1 (en) 2016-03-18 2017-03-17 Seat back comprising an insert

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB201604655A GB2548411B (en) 2016-03-18 2016-03-18 Seat back
GB1604654.2A GB2548410A (en) 2016-03-18 2016-03-18 Seat
GB1604653.4A GB2548409B (en) 2016-03-18 2016-03-18 Table leg

Publications (2)

Publication Number Publication Date
GB201605285D0 GB201605285D0 (en) 2016-05-11
GB2548415A true GB2548415A (en) 2017-09-20

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ID=56027541

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1605285.4A Withdrawn GB2548415A (en) 2016-03-18 2016-03-30 Seat back and insert

Country Status (3)

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US (1) US20170267142A1 (en)
EP (1) EP3222525A1 (en)
GB (1) GB2548415A (en)

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US10807718B2 (en) 2018-04-20 2020-10-20 The Boeing Company Vehicle seat assemblies

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US20170267142A1 (en) 2017-09-21
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