Source: https://patents.google.com/patent/US20110291453A1/en
Timestamp: 2019-12-05 21:09:02
Document Index: 207920857

Matched Legal Cases: ['art 4', 'art 4', 'art 4', 'art 5', 'art 5', 'ART\n4', 'ART\n4', 'ART\n5', 'ART\n5', 'ART\n5', 'ART\n6']

US20110291453A1 - Seat - Google Patents
US20110291453A1
US20110291453A1 US13/206,039 US201113206039A US2011291453A1 US 20110291453 A1 US20110291453 A1 US 20110291453A1 US 201113206039 A US201113206039 A US 201113206039A US 2011291453 A1 US2011291453 A1 US 2011291453A1
US13/206,039
US8282172B2 (en
2006-03-24 Priority to DE102006014109 priority Critical
2006-03-24 Priority to DE102006014109 priority
2006-03-24 Priority to DE102006014109.1 priority
2006-04-26 Priority to DE102006020007 priority
2006-04-26 Priority to DE102006020007.1 priority
2006-04-26 Priority to DE102006020006 priority
2006-04-26 Priority to DE102006020006.3 priority
2006-07-21 Priority to DE102006034307.7 priority
2006-07-21 Priority to DE102006034307 priority
2006-07-27 Priority to DE102006035553.9 priority
2006-07-27 Priority to DE102006035553 priority
2006-08-24 Priority to DE102006039606.5 priority
2006-08-24 Priority to DE102006039606 priority
2007-03-22 Priority to PCT/IB2007/000745 priority patent/WO2007110737A2/en
2008-09-18 Priority to US22533508A priority
2011-08-09 Priority to US13/206,039 priority patent/US8282172B2/en
2011-08-09 Application filed by Johann Burkhard Schmitz, Carola Eva Marianne Zwick, Roland Rolf Otto Zwick, Claudia Plikat filed Critical Johann Burkhard Schmitz
2011-12-01 Publication of US20110291453A1 publication Critical patent/US20110291453A1/en
2012-10-09 Publication of US8282172B2 publication Critical patent/US8282172B2/en
210000004705 Lumbosacral Region Anatomy 0 claims 1
230000000284 resting Effects 0 description 30
A seating structure including a base, a pair of laterally spaced support arms each having a seat portion and a backrest portion and a transition portion joining the seat portion and backrest portion, wherein the support arms are coupled to the base. A body support member extends between and is connected to the support arms and includes at least a seat portion and a backrest portion. A support element is coupled to the base and includes a central support arm extending upwardly along a centerline of the backrest portion of the body support member. The central support arm is spaced rearwardly from the backrest portions of the support arms and further includes a pair of laterally extending struts connecting the central support arm and the laterally spaced support arms.
This application is a continuation of U.S. application Ser. No. 12/225,335, filed Sep. 18, 2008, which was the National Stage of International Application No. PCT/IB07/00745, filed Mar. 22, 2007, the entire disclosures of which are hereby incorporated herein by reference.
FIG. 1 b shows: a perspective schematic diagram of the seat shown in FIG. 1 a;
FIG. 2 shows: the seat shown in FIG. 1 a in a resting position II;
In one embodiment, the upper support 6 a, 7 a has a cross sectional area of 1 inch3 and a moment of inertia of 0.005000 inch4 in the sections B and C. In various exemplary and suitable embodiments, the cross sectional area can be from 0.3 inch2 to 4 inch2 and the moment of inertia can be from 0.000172 inch4 to 0.011442 inch4. Preferably, the cross-sectional area is at least 0.3 inch2 and the moment of inertia is at least 0.000172 inch4. In one embodiment, the connecting links are spaced apart about 3 inches. In various exemplary embodiments, the connecting links are spaced at least 0.5 inch, but preferably no more than 8 inches. In the section A the moment of inertia of the first upper support 6 a, 7 a increases in direction to front seat part 4 a in comparison with the moment of inertia in the sections B and C. In the section D the moment of inertia of the upper support 6 a, 7 a is comparable with the moment of inertia of the upper support 6 a, 7 a in the sections B and C. In all sections A, B, C and D the lower support 6 b, 7 b is dimensioned comparably to the corresponding section of the upper support 6 a, 7 a. In various exemplary embodiments, the values for the moment of inertia and cross sectional areas differ from the values of the upper support 6 a, 7 a by a factor from 0.5 to 1.5. Preferably the upper and lower support 6 a, 7 a, 6 b, 7 b have a cross sectional area of the same shape. According to the embodiment of FIGS. 1 a and 1 b the cross sectional area has the shape of a rectangle. In various exemplary and suitable embodiments, the cross sectional area of the supports 6 a, 7 a, 6 b, 7 b has the shape of a circle or an oval or a polygon.
W6 W4 W5 W9 I - BASIC POSITION 105 2 18 32 III - INTERMEDIATE POSITION 118 6 33 40 II - RESTING POSITION 130 8 48 46
FIG. 15 illustrates a perspective view of a seat element 2 of an eighth variant embodiment of a seat 1. The seat element 2 has a supporting arm 6 which bears a covering 28 which forms a seat surface 29 and a backrest 30. The supporting arm 6 comprises a left, upper support 6 a, a right, upper support 6 a′ and a lower support 6 b located between them. The lower support 6 b is connected to the left, upper support 6 a by mechanical connecting links 12 and to the right, upper support 6 a′ by further mechanical connecting links 12. The upper supports 6 a and 6 a′ are connected to each other by two transverse supports 31 and 32. An upwardly directed, approximately vertically situated limb 33 of the lower support 6 b is divided into two struts 33 a, 33 b and merges with the latter into upwardly directed limbs 34, 35 of the upper supports 6 a, 6 a′. By this means, the upper supports 6 a and 6 a′ and the lower support 6 b form the single-part supporting arm 6. An approximately horizontally running limb 36 of the lower support 6 b is connected at a free end 37 via a guide element 9 to an approximately horizontally running limb 38 of the left, upper support 6 a and to an approximately horizontally running limb 39 of the right, upper support 6 a′.
FIG. 16 shows a side view of the seat 1, the seat element 2 of which is already known from FIG. 15. The side view also illustrates an underframe 3 of the seat 1. The underframe 3 is connected to the limb 36 of the lower support 6 b. Only the left, upper support 6 a of the upper supports can be seen in the side view, the right, upper support is completely concealed. The supporting arm 6 which is of single-part design is connected between its upper support 6 a and its lower support 6 b via the guide element 9 and six connecting links 12. The guide element 9 and the connecting links 12 are designed as struts 40 which are mounted rotatably in the upper support 6 a and the lower support 6 b. A variant embodiment for the arrangement of the guide element 9, which arrangement replaces the guide element 9 (illustrated by solid lines), is illustrated by dashed lines. The guide element 9 shown by dashed lines connects the underframe 3 and the upper support 6 a. A seat part 4 of the seat 1 is situated with a rear seat part 4 b in a region B, and a backrest part 5 is situated with a lower backrest part 5 a in a region C. In the regions B and C, the upper supports 6 a, 6 a′ are formed by central sections Q and Q′. The lower support 6 b is formed in these two regions B and C by a central section R. All six connecting links 12 visible in FIG. 16 are arranged between the central section Q of the upper support 6 a and the central section R of the lower support 6 b. A further six connecting links are arranged between the upper support 6 a′ and the lower support 6 b (see FIG. 17).
2 SEAT ELEMENT
3 UNDERFRAME
4 SEAT PART
4A FRONT SEAT PART
4B REAR SEAT PART
5 BACKREST PART
5A LOWER BACKREST PART
5B UPPER BACKREST PART
6 SUPPORTING ARM
6A UPPER SUPPORT OF 6
6A′ SECOND, UPPER SUPPORT OF 6
6B LOWER SUPPORT OF 6
7 SUPPORTING ARM
7A UPPER SUPPORT OF 7
7B LOWER SUPPORT OF 7
11 INTERMEDIATE SPACE BETWEEN 6A, 6B AND 7A, 7B
12 CONNECTING LINK
14 TRANSVERSE SUPPORT BETWEEN 6B AND 7B
15 ENERGY STORE
16 SPRING ELEMENT
18 STOP ON 6A
19 CONTACT BODY TRANSVERSE STRUT BETWEEN 6 AND 7 AND 6B AND 7B
21 TRANSVERSE STRUT BETWEEN 6 AND 7 AND 6B AND 7B
22 FOOTPLATE OF 3
23 STRUT BETWEEN 22 AND 14
24 FASTENING POINT OF 6B/7B ON 14
26 TRANSVERSE SLAT
27 SPOKE
28 COVERING
29 SEAT SURFACE
31 TRANSVERSE SUPPORT BETWEEN 6A AND 6A′
32 TRANSVERSE SUPPORT BETWEEN 6A AND 6A′
33 APPROXIMATELY VERTICALLY SITUATED LIMB OF 6B
33A STRUT ON 33
33B STRUT ON 33
34 UPWARDLY DIRECTED LIMB OF 6A
35 UPWARDLY DIRECTED LIMB OF 6A′
36 APPROXIMATELY HORIZONTALLY SITUATED LIMB OF 6B
37 FREE END OF 36
38 APPROXIMATELY HORIZONTALLY SITUATED LIMB OF 6A
39 APPROXIMATELY HORIZONTALLY SITUATED LIMB OF 6A′
40 STRUT
41 VERTICAL PLANE
44 SLOTTED-GUIDE MECHANISM
44A PIN
44B SLOT
45 SLOTTED-GUIDE MECHANISM AS CONNECTING LINK
45A PIN
45B SLOT
46 ELASTIC ELEMENT BETWEEN 6A AND 6B
47 UPPER SIDE OF 6B
48 LOWER SIDE OF 6A
49 RUBBER BLOCK
50 SLOTTED-GUIDE MECHANISM AS GUIDE ELEMENT
50A PIN
50B SLOT
51 SCREW FOR FASTENING 6B TO 3
52 SCREW FOR FASTENING 6B TO 3
I BASIC POSITION OF 1 AND 2
II RESTING POSITION OF 1 AND 2
III INTERMEDIATE POSITION BETWEEN I AND II
A REGION OF 4A
B6 WIDTH OF 6
B REGION OF 4B
C REGION OF 5A
D REGION OF 5B
D91 PIVOTAL POINT OF 90N 6A
D92 PIVOTAL POINT OF 90N 6B
D121 PIVOTAL POINT OF 120N 6A
D122 PIVOTAL POINT OF 120N 6B
E1 END OF 6A
E2 END OF 6B
H1 DISPLACEMENT OF D91 IN Y DIRECTION
K9 ARCUATE PATH OF D91
K12 ARCUATE PATH OF D121
K50 CURVE OF 50A
K CIRCULAR PATH OF D91 ABOUT D92
L1 DISPLACEMENT OF D91 IN X DIRECTION
M PULLING DIRECTION OF 6A
P POINT ON 6
Q CENTRAL SECTION OF 6A
Q′ CENTRAL SECTION OF 6A′
R CENTRAL SECTION OF 6B
W4 ANGLE BETWEEN 4 AND H
W5 ANGLE BETWEEN 5 AND V
W6 OPENING ANGLE BETWEEN 4 AND 5
W9 ANGLE BETWEEN 9 AND H
WP ROCKING POINT
V1 DISPLACEMENT DISTANCE OF 19 IN Y′ DIRECTION
α INNER OPENING ANGLE
β DIFFERENCE BETWEEN THE ANGLES W9
γ DIFFERENCE BETWEEN DIFFERENT ANGLES OF 12
a pair of laterally spaced support arms each comprising a seat portion, a backrest portion and a transition portion joining said seat portion and backrest portion, wherein said support arms are coupled to said base;
a body support member extending between and connected to said support arms and comprising at least a seat portion and a backrest portion; and
a support element coupled to said base and comprising a central support arm extending upwardly along a centerline of said backrest portion of said body support member, wherein said central support arm is spaced rearwardly from said backrest portions of said support arms, said support element further comprising a pair of laterally extending struts connecting said central support arm and said laterally spaced support arms.
2. The seating structure of claim 1 further comprising a cross member connecting upper ends of each of said backrest portions of said support arms.
3. The seating structure of claim 1 wherein said body support member comprises a flexible membrane.
4. The seating structure of claim 3 wherein said flexible membrane comprises a fabric.
5. The seating structure of claim 1 wherein each of said laterally spaced support arms is generally L-shaped.
6. The seating structure of claim 1 wherein said struts are connected to said support arms at a location spaced below upper ends of said support arms.
7. The seating structure of claim 1 wherein said support element comprises a forwardly extending limb spaced below the seat portions of said support arms.
8. The seating structure of claim 7 wherein said limb is pivotally connected to said base.
9. The seating structure of claim 7 wherein said limb is connected to said seat portions of said support arms with at least a pair of links.
10. The seating structure of claim 1 wherein said seat portion of each of said support arms is pivotally coupled to said base with a link.
11. The seating structure of claim 1 wherein said body support member further comprises a transition portion integrally formed with said seat portion and said backrest portion of said body support member.
a support member comprising a seat portion, a backrest portion and a transition portion joining said seat portion and backrest portion, wherein said support member is coupled to said base, said backrest portion moveable relative to said seat portion as said support member is moved between upright and reclined positions, wherein said support member is elastically deformed as said support member is moved between said upright and reclined positions; and
a support element coupled to said base and having an upper portion connected to said backrest portion of said support member at a location above a lumbar region of said backrest portion.
13. The seating structure of claim 12 wherein said support member comprises a pair of laterally spaced support arms each having said, backrest and transition portions, and wherein said support element comprises a central support arm extending upwardly between said support arms, said support element further comprising a pair of laterally extending struts connecting said central support arm and said laterally spaced support arms.
14. The seating structure of claim 13 wherein said central support arm is spaced rearwardly from said backrest portions of said support arms.
15. The seating structure of claim 13 further comprising a body support member extending between and connected to said support arms and comprising at least a seat portion and a backrest portion.
16. The seating structure of claim 13 further comprising a cross member connecting upper ends of each of said backrest portions of said support arms.
17. The seating structure of claim 13 wherein said support element comprises a forwardly extending limb spaced below the seat portions of said support arms.
18. The seating structure of claim 17 wherein said limb is pivotally connected to said base.
19. The seating structure of claim 17 wherein said limb is connected to said seat portions of said support arms with at least a pair of links.
20. The seating structure of claim 13 wherein said seat portion of each of said support arms is pivotally coupled to said base with a link.
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DE102006014109.1 2006-03-24
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US22533508A Continuation 2008-09-18 2008-09-18
US20110291453A1 true US20110291453A1 (en) 2011-12-01
US8282172B2 US8282172B2 (en) 2012-10-09
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