TREA

Lumbar and bolster support for second row seat

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Information

  • Patent Grant
  • 7984949
  • Patent Number
    7,984,949
  • Date Filed
    Thursday, April 24, 2008
    16 years ago
  • Date Issued
    Tuesday, July 26, 2011
    12 years ago
Information
Abstract
The present invention is a lumbar and bolster support for a seat, especially for an automotive second row seat or a chair back rest. The lumbar and bolster support has a lumbar support member adjustable between a retracted position and an extended position, and a first bolster member and a second bolster member adjustable between a first position and a second position.
Description
BACKGROUND OF THE INVENTION

1. Field of the Invention


The present invention relates to the field of lumbar support systems, especially as such systems are used in automotive seats and chair back rests.


2. Related Art


Lumbar support systems have become a popular feature for use in automotive seats, office chairs, beds, lounge chairs and various other furniture and equipment used for sitting or reclining. Numerous and varied designs of lumbar support systems have been developed and produced.


SUMMARY OF THE INVENTION

The present invention is a lumbar and bolster support for a seat, especially for an automotive second row seat or a chair back rest.


Further areas of applicability of the present invention will become apparent from the detailed description provided hereinafter. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purpose of illustration only and are not intended to limit the scope of the invention.





BRIEF DESCRIPTION OF THE DRAWINGS

The present invention will become more fully understood from the detailed description and the accompanying drawings, wherein:



FIG. 1 illustrates a front perspective view of an embodiment of the present invention.



FIG. 2 illustrates a bottom view the embodiment of FIG. 1.



FIG. 3 illustrates a back perspective view of the embodiment of FIG. 1.



FIG. 4 illustrates a front view of the embodiment of FIG. 1.





DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

The following description of the preferred embodiment(s) of the present invention is merely exemplary in nature and is in no way intended to limit the present invention, its application, or its uses.


As shown in FIGS. 1-4 an apparatus 10 to provide a lumbar and bolster support in a seat back is provided comprising a lumbar support basket 20, two bolster paddles 30, 31, a suspension wire 40, an actuator 50, a first, second and third bowden cable wire assemblies 52, 54. 56, a center bracket assembly 60, four spring and spring tube assemblies 62, 63, 64, 65, four pivot plates 70, 71, 72, 73, two hinge wires 74, 75, two pivot wires 76, 77, two trim wires 80, 81, two bolster wires 78, 79 and two slider assemblies 90, 91. The spring and spring tube assemblies 62, 63, the pivot plates 70, 71, the hinge wire 74, the pivot wire 76, the bolster wire 78, and the slider assembly 90 are collectively referred to as a first bolster adjustment mechanism, and the spring and spring tube assemblies 64, 65, the pivot plates 72, 73, the hinge wire 75, the pivot wire 77, the bolster wire 79, and the slider assembly 91 are collectively referred to as a second bolster adjustment mechanism.


According to the depicted embodiment an upper portion of the suspension wire 40 is attached by clips 42, 43 to a seat back (not shown) and a lower portion is hingedly attached to the lumbar support basket 20 as best seen in FIG. 1. Although the suspension wire 40 is depicted as a generally U-shaped wire, it need not be limited to a U-shaped wire. The lumbar support basket 20 is preferably designed such that it is naturally biased in a retracted position, for example by making it at least in part out of elastic material. The lumbar support basket 20 preferably has a number of through-holes as depicted. The sides of the lumbar support basket 20 are hingedly attached to the two pivot wires 76, 77, respectively, as best seen in FIG. 2.


The pivot wires 76; 77 are in turn hingedly connected to the four pivot plates 70, 71; 72, 73, two on each side. Two pivot plates 70, 71; 72, 73 are connected to each bolster wire 78; 79 on its respective side. The pivot plates 70, 71; 72, 73 connect to the bolster wire 78; 79 preferably at a middle portion of the bolster wire 78; 79 on its respective side. Outer portions of the two bolster wires 78, 79 are fixed to the two bolster paddles 30, 31, respectively. Inner portions of the two bolster wires 78, 79 are hingedly attached to the two slider assemblies 90, 91, respectively. The two slider assemblies 90, 91 are slidable with respect to the center bracket assembly 60. The two bolster paddles 30, 31 are fixed to the two trim wires 80, 81, respectively. The two trim wires 80, 81 are slideably connected to two clips 82, 83, which are attached to a seat frame (not shown). The two pivot plates 70, 71; 72, 73 are also hingedly connected to the hinge wire 74; 75, on its respective side. The two hinge wires 74, 75 are both hingedly connected to opposite sides of the center bracket assembly 60 as best seen in FIG. 2. Accordingly, when the slider assemblies 90, 91 slide with respect to the center bracket assembly 60, the two bolster paddles 30, 31 are moved between a first position and a second position.


Preferably, two spring assemblies 62, 63; 64, 65 on each side of the center bracket assembly 60 are attached such that one end of each spring is fixed with respect to a portion of the hinge wire 74, 75, and the other end is fixed with respect to a portion of the respective slider assembly 90, 91 as best seen in FIG. 2, thereby biasing the two bolster paddles 30, 31 in the first position.


The actuator 50 is attached to the suspension wire 40. A first end of the first bowden cable 52 is operatively connected to the actuator 50. The second end of the conduit portion of the first bowden cable assembly 52 is fixed with respect to a first pivot wire 77. The second end of the wire portion 53 of the first bowden cable assembly 52 is fixed with respect to a second pivot wire 76 as best seen in FIGS. 2 and 4. A portion of the wire 53 of the first bowden cable assembly 52 runs through a channel in the lumbar support basket 20 such that when tension is applied to the wire 53, the lumbar support basket 20 is moved to an extended position. Preferably, when such tension is removed the lumbar support basket 20 is moved back to the retracted position due to its natural bias.


The conduit portions of the second and third bowden cable assemblies 54, 56 are fixed with respect to the center bracket assembly 60. The wire portions of the second and third bowden cable assemblies 54, 56 are attached to the slider assemblies 90, 91, respectively. Accordingly, when tension is applied to the wire portions of the second and third bowden cable assemblies 54, 56, the slider assemblies 90, 91 are moved slidingly with respect to the center bracket assembly 60 such that the two bolster paddles 30, 31 are moved from the first position to the second position.


As various modifications could be made to the exemplary embodiments, as described above with respect to the corresponding illustrations, without departing from the scope of the present invention, it is intended that all matter contained in the foregoing description and shown in the accompanying drawings shall be interpreted as illustrative rather than limiting. Thus, the breadth and scope of the present invention should not be limited by any of the above-described exemplary embodiments, but should be defined only in accordance with the following claims appended hereto and their equivalents.

Claims
  • 1. A lumbar support for a seat comprising: a lumbar support member;a first bolster member and a second bolster member; anda first bolster adjustment mechanism and a second bolster adjustment mechanism;wherein said lumbar support member is adjustable between a retracted position and an extended position; wherein said first and second bolster adjustment mechanisms connect said first and second bolster members to said lumbar support member, respectively, and adjust said first and second bolster members between a first position and a second position, respectively;an actuator connected to said lumbar support member, wherein said actuator actuates said lumbar support member to be adjusted between said retracted position and said extended position and said first and second bolster members to be adjusted between said first position and said second position;a first bowden cable;a second bowden cable; anda third bowden cable,wherein said first bowden cable moves said lumbar support member between said retracted position and said extended position; andwherein said second bowden cable moves said first bolster member between said first position and said second position, andwherein said third bowden cable moves said second bolster member between said first position and said second position.
  • 2. The lumbar support of claim 1 further comprising a center bracket assembly; wherein said first and second bolster adjustment mechanisms respectively comprises: a first pivot member and a second pivot member;a first bolster connection member and a second bolster connection member;a first hinge member and a second hinge member; anda first slider assembly and a second slider assembly;wherein said first and second slider assemblies are slidable with respect to said center bracket assembly;wherein said lumbar support member has a first side and a second side, said first and second sides being hingedly attached to said first and second pivot members, respectively;wherein said first and second pivot members are connected to said first and second bolster connection members, respectively, outer portions of said first and second bolster connection members being fixed to said first and second bolster members, respectively, inner portions of said first and second bolster connection members being hingedly attached to said first and second slider assemblies, respectively; andwherein said first and second hinge members are hingedly connected to said first and second pivot members on one side, and hingedly connected to said center bracket assembly on the other side.
  • 3. The lumbar support of claim 2 further comprising a first spring assembly and a second spring assembly; wherein said first and second spring assemblies are hingedly connected to a portion of said first and second hinge members on one side, and hingedly connected to said first and second slider assemblies on the other side, such that said first and second spring assemblies bias said first and second bolster members in said first position, respectively.
  • 4. The lumbar support of claim 3, wherein said first and second pivot members comprise a first pivot wire and a second pivot wire, respectively.
  • 5. The lumbar support of claim 3, wherein each of said first and second bolster connection members comprises a bolster wire, and each of said first and second hinge members comprises hinge wire.
  • 6. The lumbar support of claim 3 further comprising an actuator; wherein a first end of said first bowden cable is operatively connected to said actuator, a second end of a conduit portion of said first bowden cable is fixed with respect to said first pivot member, and the second end of a wire portion of said first bowden cable is fixed with respect to said second pivot member, such that when tension is applied to the wire portion of the first bowden cable, said lumbar support member is moved to said extended position.
  • 7. The lumbar support of claim 6 wherein said lumbar support member is designed such that it is naturally biased in said retracted position.
  • 8. The lumbar support of claim 2, wherein each of said first and second pivot members further comprises at least one pivot plate.
  • 9. The lumbar support of claim 2 further comprising an actuator; wherein a first end of said second and third bowden cables are operatively connected to said actuator, a second end of a conduit portions of said second and third bowden cables are fixed with respect to said center bracket assembly, a second end of wire portions of said second and third bowden cables are fixed with respect to said first and second slider assemblies, respectively, such that when tension is applied to the wire portions of said first and second bowden cables, said first and second bolster members are moved from said first position to said second position.
  • 10. A lumbar support for a seat comprising: a first bolster member and a second bolster member adjustable between a first position and a second position;a center bracket assembly;a first bolster connection member and a second bolster connection member;a first hinge member and a second hinge member; anda first slider assembly and a second slider assembly;wherein outer portions of said first and second bolster connection members are fixed to said first and second bolster members, respectively, and inner portions of said first and second bolster connection members are hingedly attached to said first and second slider assemblies, respectively; andwherein said first and second hinge members are hingedly connected with respect to said first and second bolster connection members on one side, and hingedly connected with respect to said center bracket assembly on the other side; andwherein said first and second slider assemblies are slidable with respect to said center bracket assembly, such that when said first and second slider assemblies slide with respect to said center bracket assembly, said first and second bolster members are moved between said first position and said second position.
  • 11. The lumbar support of claim 10 further comprising: a lumbar support member;a first pivot member and a second pivot member;wherein said lumbar support member has a first side and a second side, said first and second sides being hingedly attached to said first and second pivot members, respectively; andwherein said first and second pivot members are connected to said first and second bolster connection members, respectively.
  • 12. The lumbar support of claim 11 further comprising an actuator and at least one bowden cable; wherein said at least one bowden cable is operatively connected to said actuator on one side and to said slider assemblies and said center bracket assembly on the other side, such that when said actuator applies tension to a wire portion of said at least one bowden cable, at least one of said first and second bolster members are moved from said first position to said second position.
CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims priority of U.S. Provisional Application No. 60/913,744 filed Apr. 24, 2007.

US Referenced Citations (190)
Number Name Date Kind
1182854 Poler May 1916 A
1203293 Wilkinson Oct 1916 A
2274176 Widman Feb 1942 A
2756809 Endresen Jul 1956 A
2833339 Lilijengren May 1958 A
2843195 Barvaeus Jul 1958 A
2855984 Majorana et al. Oct 1958 A
2942651 Binding Jun 1960 A
3121585 Krueger et al. Feb 1964 A
3202453 Richards Aug 1965 A
3241879 Castello et al. Mar 1966 A
3246924 Krueger et al. Apr 1966 A
3271076 Smith Sep 1966 A
3273877 Geller et al. Sep 1966 A
3363941 Wierwille Jan 1968 A
3378299 Sandor Apr 1968 A
3416839 Flint Dec 1968 A
3490084 Schuster Jan 1970 A
3492768 Schuster Feb 1970 A
3550953 Neale Dec 1970 A
3695688 Wize Oct 1972 A
3724144 Schuster Apr 1973 A
3762769 Poschl Oct 1973 A
3927911 Rosquist Dec 1975 A
3929374 Hogan et al. Dec 1975 A
3938858 Drabert et al. Feb 1976 A
3967852 Eiselt et al. Jul 1976 A
3983640 Cardullo et al. Oct 1976 A
3992059 Kloepfer Nov 1976 A
4040661 Hogan et al. Aug 1977 A
4050331 Braren et al. Sep 1977 A
4105245 Simons et al. Aug 1978 A
4136577 Borgersen Jan 1979 A
4153293 Sheldon May 1979 A
4155592 Tsuda et al. May 1979 A
4156544 Swenson et al. May 1979 A
4182533 Arndt et al. Jan 1980 A
4190286 Bentley Feb 1980 A
4295681 Gregory Oct 1981 A
4313637 Barley Feb 1982 A
4316631 Lenz et al. Feb 1982 A
4354709 Schuster Oct 1982 A
4368916 Blasin Jan 1983 A
4390210 Wisniewski et al. Jun 1983 A
4428611 Widmer Jan 1984 A
4449751 Murphy et al. May 1984 A
4452485 Schuster Jun 1984 A
4465317 Schwarz Aug 1984 A
4519646 Leitermann et al. May 1985 A
4541670 Morgenstern et al. Sep 1985 A
4555140 Nemoto Nov 1985 A
4556251 Takagi Dec 1985 A
4564235 Hatsutta et al. Jan 1986 A
4565406 Suzuki Jan 1986 A
4576410 Hattori Mar 1986 A
4601514 Meiller Jul 1986 A
4602819 Morel Jul 1986 A
4616874 Pietsch et al. Oct 1986 A
4619481 Grudzinskas Oct 1986 A
4627661 Ronnhult et al. Dec 1986 A
4630865 Ahs Dec 1986 A
4632454 Naert Dec 1986 A
4634083 McKinnon Jan 1987 A
4655505 Kashiwamura et al. Apr 1987 A
4676550 Neve De Mevergnies Jun 1987 A
4679848 Spierings Jul 1987 A
4699418 Plavetich Oct 1987 A
4707027 Horvath et al. Nov 1987 A
4711490 Brand Dec 1987 A
4730871 Sheldon Mar 1988 A
4768830 Musselwhite Sep 1988 A
4826249 Bradbury May 1989 A
4833614 Saitoh et al. May 1989 A
4834455 Proctor May 1989 A
4880271 Graves Nov 1989 A
4909568 Dal Monte Mar 1990 A
4915448 Morgenstern Apr 1990 A
4918344 Chikamori et al. Apr 1990 A
4950032 Nagasaka Aug 1990 A
4957102 Tan et al. Sep 1990 A
4968093 Dal Monte Nov 1990 A
4976104 Morris et al. Dec 1990 A
5005904 Clemens et al. Apr 1991 A
5022709 Marchino Jun 1991 A
5026116 Dal Monte Jun 1991 A
5050930 Schuster et al. Sep 1991 A
5076643 Colasanti et al. Dec 1991 A
5082326 Sekido et al. Jan 1992 A
5088790 Wainwright et al. Feb 1992 A
5092654 Inaba et al. Mar 1992 A
5120111 Cook Jun 1992 A
5137329 Neale Aug 1992 A
5174526 Kanigowski Dec 1992 A
5195795 Cannera et al. Mar 1993 A
5197780 Coughlin Mar 1993 A
5215350 Kato Jun 1993 A
5217278 Harrison et al. Jun 1993 A
5269581 Odagaki et al. Dec 1993 A
5286087 Elton Feb 1994 A
5292175 Artz Mar 1994 A
5292176 Artz Mar 1994 A
5299851 Lin Apr 1994 A
5316371 Bishai May 1994 A
5335965 Sessini Aug 1994 A
5368355 Hayden et al. Nov 1994 A
5385389 Bishai Jan 1995 A
5385531 Jover Jan 1995 A
5397164 Schuster Mar 1995 A
5397167 Fourrey et al. Mar 1995 A
5423593 Nagashima Jun 1995 A
5429558 Lagarde et al. Jul 1995 A
5449219 Hay et al. Sep 1995 A
5452868 Kanigowski Sep 1995 A
5472261 Oplenskdal et al. Dec 1995 A
5474358 Maeyaert Dec 1995 A
5482346 Lesourd Jan 1996 A
5498063 Schuster et al. Mar 1996 A
5518294 Ligon, Sr. et al. May 1996 A
5529377 Miller Jun 1996 A
5553917 Adat et al. Sep 1996 A
5562324 Massara et al. Oct 1996 A
5567010 Sparks Oct 1996 A
5567011 Sessini Oct 1996 A
5570931 Kargilis et al. Nov 1996 A
5588703 Itou Dec 1996 A
5588707 Bolsworth et al. Dec 1996 A
5609394 Ligon, Sr. et al. Mar 1997 A
5626390 Schuster et al. May 1997 A
5638722 Klingler Jun 1997 A
5651583 Klingler et al. Jul 1997 A
5651584 Chenot et al. Jul 1997 A
5660438 Tedesco Aug 1997 A
5681079 Robinson Oct 1997 A
5704687 Klingler Jan 1998 A
5718476 De Pascal et al. Feb 1998 A
5730495 Tuman, II Mar 1998 A
5758925 Schrewe et al. Jun 1998 A
5762397 Venuto et al. Jun 1998 A
5769491 Schwarzbich Jun 1998 A
5772281 Massara Jun 1998 A
5775773 Schuster et al. Jul 1998 A
5791733 Van Hekken et al. Aug 1998 A
5816653 Benson Oct 1998 A
5823620 Le Caz Oct 1998 A
5857743 Ligon, Sr. et al. Jan 1999 A
5868466 Massara Feb 1999 A
5884968 Massara Mar 1999 A
5897168 Bartelt et al. Apr 1999 A
5911477 Mundell et al. Jun 1999 A
5913569 Klingler Jun 1999 A
5934752 Klingler Aug 1999 A
5941602 Sturt et al. Aug 1999 A
5967608 Van Sickle Oct 1999 A
5975632 Ginat Nov 1999 A
5984407 Ligon, Sr. et al. Nov 1999 A
5988745 Deceuninck Nov 1999 A
6003941 Schuster, Sr. et al. Dec 1999 A
6007151 Benson Dec 1999 A
6030041 Hsiao Feb 2000 A
6036265 Cosentino Mar 2000 A
6045185 Ligon, Sr. et al. Apr 2000 A
6050641 Benson Apr 2000 A
6079783 Schuster, Sr. et al. Jun 2000 A
6092871 Beaulieu Jul 2000 A
6152531 Deceuninck Nov 2000 A
6152532 Cosentino Nov 2000 A
6158300 Klingler Dec 2000 A
6174017 Salani et al. Jan 2001 B1
6199951 Zeile et al. Mar 2001 B1
6227617 Von Möller May 2001 B1
6227618 Ligon, Sr. et al. May 2001 B1
6254186 Falzon Jul 2001 B1
6254187 Schuster, Sr. et al. Jul 2001 B1
6270158 Hong Aug 2001 B1
6296308 Cosentino et al. Oct 2001 B1
6334651 Duan et al. Jan 2002 B1
6371558 Couasnon Apr 2002 B1
6375255 Maruta et al. Apr 2002 B1
6554360 Wilke et al. Apr 2003 B1
6648395 Hoshino Nov 2003 B2
6655738 Kämmerer Dec 2003 B2
6669299 Carlson et al. Dec 2003 B2
6695402 Sloan, Jr. Feb 2004 B2
6736459 Sturt May 2004 B1
6860561 Takata Mar 2005 B2
7000986 Cruz Fernandes de Pinho Feb 2006 B2
7140680 McMillen et al. Nov 2006 B2
7140681 McMillen Nov 2006 B2
20030085600 Mori May 2003 A1
20050046252 McMillen Mar 2005 A1
Foreign Referenced Citations (32)
Number Date Country
401497 Sep 1996 AT
2040794 Jul 1971 DE
2064419 Jul 1972 DE
2947472 Aug 1980 DE
4220995 Jan 1994 DE
4412898 Oct 1995 DE
19750116 May 1999 DE
29905163 Jul 1999 DE
10005215 Sep 2001 DE
10314771 Oct 2004 DE
0006840 Feb 1982 EP
0169293 Oct 1988 EP
0322535 Jul 1989 EP
0518830 Dec 1992 EP
0485483 Jan 1994 EP
0434660 May 1995 EP
0540481 Dec 1995 EP
0662795 Dec 1996 EP
0702522 Mar 1997 EP
0696251 Jul 1997 EP
0746219 Nov 1998 EP
0797399 Nov 1998 EP
0698360 Mar 2000 EP
2596334 Oct 1987 FR
1423617 Feb 1976 GB
2013487 Feb 1978 GB
587924 Feb 1978 SU
WO0000064 Jan 2000 WO
WO 0148397 Jul 2001 WO
WO03022626 Mar 2003 WO
WO2004043207 May 2004 WO
WO2004043730 May 2004 WO
Related Publications (1)
Number Date Country
20080265649 A1 Oct 2008 US
Provisional Applications (1)
Number Date Country
60913744 Apr 2007 US