Adjustable lumbar support
A chair includes a flexible back shell, a back covering that covers at least a portion of a front surface of the back shell, and an adjustable lumbar device positioned between the back shell and the back covering. The adjustable lumbar device is flexible so that the lumbar device will flex to confor...
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| creator | SMITH BRUCE M DAMMERMANN ARNOLD B HEIDMANN KURT WELSH MICHAEL W |
| description | A chair includes a flexible back shell, a back covering that covers at least a portion of a front surface of the back shell, and an adjustable lumbar device positioned between the back shell and the back covering. The adjustable lumbar device is flexible so that the lumbar device will flex to conform to a horizontal shape of the chair back shell, but is relatively stiff in a direction perpendicular to a front surface of the back shell, such that the lumbar device provides good lumbar support. The lumbar device is positioned between the back shell and the back covering for vertical height adjustment, and frictionally engages the same to retain its adjusted position. Further, the adjustable lumbar device includes rearwardly-extending protrusions that engage slots in the back shell to form a detent-like feature for holding a selected position, and further includes forwardly protruding tabs that act as handles for grasping the lumbar device for adjustment. In a preferred form, the back covering is tensioned such that it presses the lumbar adjustment device against the back shell for better holding power. |
| format | Patent |
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The adjustable lumbar device is flexible so that the lumbar device will flex to conform to a horizontal shape of the chair back shell, but is relatively stiff in a direction perpendicular to a front surface of the back shell, such that the lumbar device provides good lumbar support. The lumbar device is positioned between the back shell and the back covering for vertical height adjustment, and frictionally engages the same to retain its adjusted position. Further, the adjustable lumbar device includes rearwardly-extending protrusions that engage slots in the back shell to form a detent-like feature for holding a selected position, and further includes forwardly protruding tabs that act as handles for grasping the lumbar device for adjustment. In a preferred form, the back covering is tensioned such that it presses the lumbar adjustment device against the back shell for better holding power.</description><edition>7</edition><language>eng</language><subject>BEDS ; BRAIDING ; CHAIRS ; COFFEE MILLS ; COTTON-WOOL ; DOMESTIC ARTICLES OR APPLIANCES ; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS,NON-WOVEN FABRICS ; FURNITURE ; HUMAN NECESSITIES ; KNITTING ; LACE-MAKING ; MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARYMATERIAL ; NON-WOVEN FABRICS ; SOFAS ; SPICE MILLS ; SUCTION CLEANERS IN GENERAL ; TEXTILES ; TRIMMINGS ; WADDING</subject><creationdate>2002</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20021029&DB=EPODOC&CC=US&NR=6471294B1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76290</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20021029&DB=EPODOC&CC=US&NR=6471294B1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>SMITH BRUCE M</creatorcontrib><creatorcontrib>DAMMERMANN ARNOLD B</creatorcontrib><creatorcontrib>HEIDMANN KURT</creatorcontrib><creatorcontrib>WELSH MICHAEL W</creatorcontrib><title>Adjustable lumbar support</title><description>A chair includes a flexible back shell, a back covering that covers at least a portion of a front surface of the back shell, and an adjustable lumbar device positioned between the back shell and the back covering. The adjustable lumbar device is flexible so that the lumbar device will flex to conform to a horizontal shape of the chair back shell, but is relatively stiff in a direction perpendicular to a front surface of the back shell, such that the lumbar device provides good lumbar support. The lumbar device is positioned between the back shell and the back covering for vertical height adjustment, and frictionally engages the same to retain its adjusted position. Further, the adjustable lumbar device includes rearwardly-extending protrusions that engage slots in the back shell to form a detent-like feature for holding a selected position, and further includes forwardly protruding tabs that act as handles for grasping the lumbar device for adjustment. In a preferred form, the back covering is tensioned such that it presses the lumbar adjustment device against the back shell for better holding power.</description><subject>BEDS</subject><subject>BRAIDING</subject><subject>CHAIRS</subject><subject>COFFEE MILLS</subject><subject>COTTON-WOOL</subject><subject>DOMESTIC ARTICLES OR APPLIANCES</subject><subject>FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS,NON-WOVEN FABRICS</subject><subject>FURNITURE</subject><subject>HUMAN NECESSITIES</subject><subject>KNITTING</subject><subject>LACE-MAKING</subject><subject>MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARYMATERIAL</subject><subject>NON-WOVEN FABRICS</subject><subject>SOFAS</subject><subject>SPICE MILLS</subject><subject>SUCTION CLEANERS IN GENERAL</subject><subject>TEXTILES</subject><subject>TRIMMINGS</subject><subject>WADDING</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2002</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZJB0TMkqLS5JTMpJVcgpzU1KLFIoLi0oyC8q4WFgTUvMKU7lhdLcDApuriHOHrqpBfnxqcUFicmpeakl8aHBZibmhkaWJk6GxkQoAQD5TiKx</recordid><startdate>20021029</startdate><enddate>20021029</enddate><creator>SMITH BRUCE M</creator><creator>DAMMERMANN ARNOLD B</creator><creator>HEIDMANN KURT</creator><creator>WELSH MICHAEL W</creator><scope>EVB</scope></search><sort><creationdate>20021029</creationdate><title>Adjustable lumbar support</title><author>SMITH BRUCE M ; DAMMERMANN ARNOLD B ; HEIDMANN KURT ; WELSH MICHAEL W</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_US6471294B13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2002</creationdate><topic>BEDS</topic><topic>BRAIDING</topic><topic>CHAIRS</topic><topic>COFFEE MILLS</topic><topic>COTTON-WOOL</topic><topic>DOMESTIC ARTICLES OR APPLIANCES</topic><topic>FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS,NON-WOVEN FABRICS</topic><topic>FURNITURE</topic><topic>HUMAN NECESSITIES</topic><topic>KNITTING</topic><topic>LACE-MAKING</topic><topic>MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARYMATERIAL</topic><topic>NON-WOVEN FABRICS</topic><topic>SOFAS</topic><topic>SPICE MILLS</topic><topic>SUCTION CLEANERS IN GENERAL</topic><topic>TEXTILES</topic><topic>TRIMMINGS</topic><topic>WADDING</topic><toplevel>online_resources</toplevel><creatorcontrib>SMITH BRUCE M</creatorcontrib><creatorcontrib>DAMMERMANN ARNOLD B</creatorcontrib><creatorcontrib>HEIDMANN KURT</creatorcontrib><creatorcontrib>WELSH MICHAEL W</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>SMITH BRUCE M</au><au>DAMMERMANN ARNOLD B</au><au>HEIDMANN KURT</au><au>WELSH MICHAEL W</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Adjustable lumbar support</title><date>2002-10-29</date><risdate>2002</risdate><abstract>A chair includes a flexible back shell, a back covering that covers at least a portion of a front surface of the back shell, and an adjustable lumbar device positioned between the back shell and the back covering. The adjustable lumbar device is flexible so that the lumbar device will flex to conform to a horizontal shape of the chair back shell, but is relatively stiff in a direction perpendicular to a front surface of the back shell, such that the lumbar device provides good lumbar support. The lumbar device is positioned between the back shell and the back covering for vertical height adjustment, and frictionally engages the same to retain its adjusted position. Further, the adjustable lumbar device includes rearwardly-extending protrusions that engage slots in the back shell to form a detent-like feature for holding a selected position, and further includes forwardly protruding tabs that act as handles for grasping the lumbar device for adjustment. In a preferred form, the back covering is tensioned such that it presses the lumbar adjustment device against the back shell for better holding power.</abstract><edition>7</edition><oa>free_for_read</oa></addata></record> |
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| subjects | BEDS BRAIDING CHAIRS COFFEE MILLS COTTON-WOOL DOMESTIC ARTICLES OR APPLIANCES FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS,NON-WOVEN FABRICS FURNITURE HUMAN NECESSITIES KNITTING LACE-MAKING MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARYMATERIAL NON-WOVEN FABRICS SOFAS SPICE MILLS SUCTION CLEANERS IN GENERAL TEXTILES TRIMMINGS WADDING |
| title | Adjustable lumbar support |
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