WO1991018539A1 - Back-rest - Google Patents
Back-rest Download PDFInfo
- Publication number
- WO1991018539A1 WO1991018539A1 PCT/EP1991/001008 EP9101008W WO9118539A1 WO 1991018539 A1 WO1991018539 A1 WO 1991018539A1 EP 9101008 W EP9101008 W EP 9101008W WO 9118539 A1 WO9118539 A1 WO 9118539A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- backrest
- rail
- backrest according
- seat
- seat surface
- Prior art date
Links
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C7/00—Parts, details, or accessories of chairs or stools
- A47C7/36—Support for the head or the back
- A47C7/40—Support for the head or the back for the back
- A47C7/405—Support for the head or the back for the back with double backrests
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C7/00—Parts, details, or accessories of chairs or stools
- A47C7/36—Support for the head or the back
- A47C7/40—Support for the head or the back for the back
- A47C7/44—Support for the head or the back for the back with elastically-mounted back-rest or backrest-seat unit in the base frame
- A47C7/448—Support for the head or the back for the back with elastically-mounted back-rest or backrest-seat unit in the base frame with resilient blocks
Definitions
- the invention relates to a backrest for a chair, armchair, seat or vehicle seat.
- the present invention has the task that in a backrest of the type mentioned not only these lateral forces, but also other stresses can be absorbed on a backrest.
- the fatigue strength of the backrest and above all the strength of elastic parts of the backrest should also be increased.
- the back shells are attached to a leaf spring turn, so that when one leans against the back shells, the spring causes the back shells to move upwards. This supports or raises the spine of the seated person.
- the corresponding effect can also be used for a lateral movement of the back shells, which essentially depends on the arrangement and design of the leaf spring windings.
- the back shells according to the invention have, by using relatively simple parts, for example a leaf spring instead of the usual rubber spring has a relatively long service life.
- Fig. 1 shows a schematic view of a leaf spring arrangement on the cross rail of a backrest according to the invention.
- FIG. 2 shows a side view corresponding to FIG. 1.
- Fig. 3 shows a horizontal cross-sectional view through a backrest according to the invention.
- Fig. 4 shows a perspective view on a reduced scale of a backrest attached to a chair according to the invention.
- FIG. 5 shows an illustration corresponding to FIG. 4 of a modified embodiment.
- Fig. 6 shows in side view details of a connection of the back shell and cross rail.
- FIG. 7 shows, on the scale of FIGS. 4 and 5, a front view of a modified backrest according to the invention.
- FIG. 8 shows a top view of the backrest shown in FIG. 7.
- Fig. 9 shows on the scale of Figures 4 and 5 a view from the side and from a modified backrest according to the invention.
- FIG. 10 shows a side and rear view of the backrest shown in FIG. 9.
- the seat or a chair is provided with the reference number 4.
- a backrest or a support rail 120 projects upward from the seat surface 4, which can be, for example, a single, essentially horizontally oriented part (FIG. 4) or a V-shaped structure (FIG. 5).
- a cross rail 20 is fastened to the support rail (120) shown in FIG. 4, to which two back shells 1 are fastened at a distance from one another.
- This is the basic structure that backrests according to the prior art, but also according to the present invention.
- the back shells 1 in a preferred embodiment are fastened to one end of a leaf spring 21 via fastening devices 22 (FIG. 2).
- the other end of the coiled leaf spring 21 is attached to the back shell 1 at 23.
- the leaf spring 21 is tapered at one end, namely that at which it is connected to the back shell 1, so that a tip 24 is received in a bore or recess 25 in the cross rail 20. It can be seen that the described embodiment produces a resilient connection between the supporting part 120 and the back shells 1. 1, it can also be seen that when a compressive force is exerted on the back shells 1, the spring 21 tends to exert an upward component on the back shells 1, so that this relieves the spine.
- a common sheathing which additionally creates the effect that the person sitting on a chair with a backrest according to the invention is protected from drafts.
- a foam that preferably encloses all functional elements is suitable for the sheathing.
- a modified construction can also be used as the spring element between the back shell 1 and the transverse rail 120.
- Two angle irons 30 and 31 attached to the back shell 1 are connected to rubber elements 32 on their horizontal or almost horizontal surface. These rubber elements are in turn with angle or U-iron 33 in their almost horizontal plane e.g. connected by gluing, which in turn are attached to the cross rail 120.
- the support part 120 is made so wide that the gap between the back shells 1 is completely covered.
- the back shells 1 are of any type, preferably one, via a spring element 50 Rubber or foam block (Fig. 7 and 8) connected to a tensioned cross belt 201 behind it.
- the cross belt can consist of the end strips of fabric or synthetic leather that normally serve as the backrest.
- the cross belt In vehicle seats, the cross belt (FIGS. 9 and 10) is stretched around the backrest so that the person sitting is supported at the waist when leaning back.
- Vertical straps 202 serve for the adjustable height fixing of the cross belt 201.
- a limitation or a stop of the lateral movement of the back shells 1 in their upper region is also advantageous. This can be done by rubber buffers (not shown) attached in the outer area of the back shells 1.
- the head of a seated person can be supported by double shells 11 (FIG. 4).
- such shells 11 should be brought together above the shells 11 by a foam or other cushion bridge.
- the holding rod 120 should then preferably be curved forwards in the upper region, so that the head is raised somewhat when the arm is leaning against it.
- the headrest can also have the shape of a round arch.
- the back shells and also the head shells can be made of plastic foam with inserted reinforcing rails made of metal or plastic.
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BR919105770A BR9105770A (en) | 1990-06-05 | 1991-05-31 | BACK |
DE59103418T DE59103418D1 (en) | 1990-06-05 | 1991-05-31 | BACKREST. |
EP91910157A EP0485560B1 (en) | 1990-06-05 | 1991-05-31 | Back-rest |
FI920371A FI92551C (en) | 1990-06-05 | 1992-01-28 | Backrest |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEG9006316.3U | 1990-06-05 | ||
DE9006316U DE9006316U1 (en) | 1990-06-05 | 1990-06-05 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1991018539A1 true WO1991018539A1 (en) | 1991-12-12 |
Family
ID=6854401
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP1991/001008 WO1991018539A1 (en) | 1990-06-05 | 1991-05-31 | Back-rest |
Country Status (11)
Country | Link |
---|---|
EP (1) | EP0485560B1 (en) |
AU (1) | AU641516B2 (en) |
BR (1) | BR9105770A (en) |
CA (1) | CA2063440C (en) |
DE (2) | DE9006316U1 (en) |
DK (1) | DK0485560T3 (en) |
ES (1) | ES2066444T3 (en) |
FI (1) | FI92551C (en) |
TR (1) | TR25728A (en) |
WO (1) | WO1991018539A1 (en) |
ZA (1) | ZA914117B (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0846429A2 (en) * | 1996-12-06 | 1998-06-10 | CLERPREM S.p.A. | A chair structure |
GB2354433A (en) * | 1999-09-17 | 2001-03-28 | Glaser Alan | Adjustable backrest |
GB2394890A (en) * | 2002-09-19 | 2004-05-12 | Stenochair Ltd | Chair back and assembly method |
DE102009058461C5 (en) * | 2009-12-16 | 2015-07-09 | Egon Märtens | Backrest for a chair, armchair or the like. |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005001960A1 (en) * | 2005-01-15 | 2006-07-20 | Daimlerchrysler Ag | vehicle seat |
DE102006030018A1 (en) * | 2006-06-29 | 2008-01-03 | Grahl Working Well Gmbh | Backrest for a chair or armchair and chair or armchair equipped with such a backrest |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2796920A (en) * | 1955-02-01 | 1957-06-25 | Gen Tire & Rubber Co | Chair back support |
FR1383559A (en) * | 1964-02-28 | 1964-12-24 | Sable Freres Int | Elastically deformable support method for vehicle seat backs or furniture |
DE1282264B (en) * | 1966-03-24 | 1968-11-07 | Mathias Bruenig | Backs of armchairs and chairs |
US4161337A (en) * | 1977-12-15 | 1979-07-17 | Albert Ross | Portable folding orthopedic chair |
-
1990
- 1990-06-05 DE DE9006316U patent/DE9006316U1/de not_active Expired - Lifetime
-
1991
- 1991-05-30 ZA ZA914117A patent/ZA914117B/en unknown
- 1991-05-31 BR BR919105770A patent/BR9105770A/en not_active IP Right Cessation
- 1991-05-31 AU AU79838/91A patent/AU641516B2/en not_active Expired
- 1991-05-31 WO PCT/EP1991/001008 patent/WO1991018539A1/en active IP Right Grant
- 1991-05-31 ES ES91910157T patent/ES2066444T3/en not_active Expired - Lifetime
- 1991-05-31 DE DE59103418T patent/DE59103418D1/en not_active Expired - Lifetime
- 1991-05-31 EP EP91910157A patent/EP0485560B1/en not_active Expired - Lifetime
- 1991-05-31 CA CA002063440A patent/CA2063440C/en not_active Expired - Lifetime
- 1991-05-31 DK DK91910157.6T patent/DK0485560T3/en active
- 1991-06-05 TR TR91/0570A patent/TR25728A/en unknown
-
1992
- 1992-01-28 FI FI920371A patent/FI92551C/en active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2796920A (en) * | 1955-02-01 | 1957-06-25 | Gen Tire & Rubber Co | Chair back support |
FR1383559A (en) * | 1964-02-28 | 1964-12-24 | Sable Freres Int | Elastically deformable support method for vehicle seat backs or furniture |
DE1282264B (en) * | 1966-03-24 | 1968-11-07 | Mathias Bruenig | Backs of armchairs and chairs |
US4161337A (en) * | 1977-12-15 | 1979-07-17 | Albert Ross | Portable folding orthopedic chair |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0846429A2 (en) * | 1996-12-06 | 1998-06-10 | CLERPREM S.p.A. | A chair structure |
EP0846429A3 (en) * | 1996-12-06 | 2000-05-17 | CLERPREM S.p.A. | A chair structure |
GB2354433A (en) * | 1999-09-17 | 2001-03-28 | Glaser Alan | Adjustable backrest |
GB2394890A (en) * | 2002-09-19 | 2004-05-12 | Stenochair Ltd | Chair back and assembly method |
GB2394890B (en) * | 2002-09-19 | 2005-05-18 | Stenochair Ltd | Chair back and assembly method |
DE102009058461C5 (en) * | 2009-12-16 | 2015-07-09 | Egon Märtens | Backrest for a chair, armchair or the like. |
Also Published As
Publication number | Publication date |
---|---|
ZA914117B (en) | 1992-02-26 |
EP0485560B1 (en) | 1994-11-02 |
ES2066444T3 (en) | 1995-03-01 |
AU7983891A (en) | 1991-12-31 |
DE9006316U1 (en) | 1990-08-16 |
FI92551C (en) | 1994-12-12 |
FI92551B (en) | 1994-08-31 |
DK0485560T3 (en) | 1995-04-24 |
FI920371A0 (en) | 1992-01-28 |
DE59103418D1 (en) | 1994-12-08 |
CA2063440C (en) | 1998-05-19 |
CA2063440A1 (en) | 1991-12-06 |
TR25728A (en) | 1993-09-01 |
AU641516B2 (en) | 1993-09-23 |
BR9105770A (en) | 1992-08-04 |
EP0485560A1 (en) | 1992-05-20 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0379564B1 (en) | Back-rest | |
EP0600986B1 (en) | Sitting section of a vehicle seat | |
DE3139448C2 (en) | chair | |
EP1480851B1 (en) | Vehicle seat with headrest comprising nuchal and lateral supports | |
EP1881912A1 (en) | Vehicle seat | |
EP1911374A1 (en) | Seat with ergonomic backrest | |
EP0705549A1 (en) | Hollow object used as a seat support | |
DE102006015786B4 (en) | Headrest assembly for a vehicle seat assembly | |
DE102007044130A1 (en) | Backrest, in particular, of an office chair | |
EP0552388B1 (en) | Backrest for an office chair | |
EP1192880A2 (en) | Neck support for a chair | |
DE1084588B (en) | Seat, especially for motor vehicles | |
EP0485560B1 (en) | Back-rest | |
EP0897344B1 (en) | Seat, especially vehicle seat | |
EP0397069A1 (en) | Slat support with elastically supported intermediate slats | |
DE4424096A1 (en) | Chair with lower frame, support and seat | |
DE3300506C2 (en) | ||
EP3576574B1 (en) | Seat apparatus for supporting an upright seating position | |
DE19542659A1 (en) | Pivoting seat back, especially for motor vehicle's seat | |
WO1981003114A1 (en) | Seat for a chair,an armchair or similar | |
EP1306033B1 (en) | Chair | |
EP0383955B1 (en) | Seat for a public transport vehicle | |
DE8435305U1 (en) | WORK CHAIR FOR THE DISABLED | |
DE202004010064U1 (en) | Outer frame for slatted sun bed has longitudinal bars joined by crossbars, each longitudinal bar being made up of two sections which are joined by e.g. connecting plates | |
DE19856349C2 (en) | Seat part or backrest of a motor vehicle seat |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AU BR CA FI PL US |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): AT BE CH DE DK ES FR GB GR IT LU NL SE |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2063440 Country of ref document: CA |
|
WWE | Wipo information: entry into national phase |
Ref document number: 920371 Country of ref document: FI |
|
WWE | Wipo information: entry into national phase |
Ref document number: 1991910157 Country of ref document: EP |
|
WWP | Wipo information: published in national office |
Ref document number: 1991910157 Country of ref document: EP |
|
WWG | Wipo information: grant in national office |
Ref document number: 1991910157 Country of ref document: EP |
|
WWG | Wipo information: grant in national office |
Ref document number: 920371 Country of ref document: FI |