Chairs and seats – Having detachably interfitting parts or components; i.e.,... – Interfitted back and bottom or back frame and bottom frame
Patent
1995-02-17
1998-07-21
Nelson, Jr., Milton
Chairs and seats
Having detachably interfitting parts or components; i.e.,...
Interfitted back and bottom or back frame and bottom frame
2973011, 2973022, 297337, A47C 700
Patent
active
057825360
ABSTRACT:
A chair construction and method for building a chair having selected features are provided. The construction includes a plurality of interchangeable different components including different base assemblies, back assemblies, seats, arms, and chair controls that can be selected to provide different features on a "customized" chair. The different chair controls are constructed from a selected one of a plurality of interchangeable energy modules and a selected one of a plurality of interchangeable seat support modules. All components include standardized connections for engaging the related components, and further include various mechanisms and designs so that by selecting particular components, a chair having various features and appearances can be provided. For example, the plurality of interchangeable seat support modules include a non-adjustable seat support module, a seat-angle-adjustable seat support module, and a seat-depth-adjustable seat support module. Also, the plurality of interchangeable chair control modules include a non-lockable energy module, a back lockable energy module, and a multi-position backstop energy module, each connectable to a selected one of the aforementioned seat support modules. The modularity of these components facilitates assembly including on-site assembly, repair, and post-assembly upgrading of the chair. Further, the seat support is connected by removable pivot pins to allow assembly, retrofit and/or modification in the field. The tension adjustment mechanism, the seat height actuator mechanism, and the pivot connections are constructed for durability, performance, assembleability, compactness of design, and to minimize the number of and complexity of parts. The method includes selecting modules from a menu of interconnectable/interchangeable modules to construct a chair control, and further selecting modules from a menu of interchangeable components to construct a chair having selected features.
REFERENCES:
patent: T103201 (1983-07-01), Robinson
patent: 217584 (1879-07-01), Chichester
patent: D299799 (1989-02-01), Muller-Deisig et al.
patent: D309383 (1990-07-01), Muller-Deisig et al.
patent: D311286 (1990-10-01), Muller-Deisig et al.
patent: D312003 (1990-11-01), Muller-Deisig et al.
patent: D312536 (1990-12-01), Muller-Deisig et al.
patent: D318184 (1991-07-01), Muller-Deisig et al.
patent: 362796 (1887-05-01), Tait
patent: 446080 (1891-02-01), Schrage
patent: 569809 (1896-10-01), Burke
patent: 740825 (1903-10-01), Dorney
patent: 887523 (1908-05-01), Ridlon
patent: 947380 (1910-01-01), Fischer et al.
patent: 1263161 (1918-04-01), Travers
patent: 1302212 (1919-04-01), Phillips
patent: 1570436 (1926-01-01), Dawson
patent: 1699894 (1929-01-01), Klemm
patent: 1719435 (1929-07-01), Lowther
patent: 2221268 (1940-11-01), Sears
patent: 2310476 (1943-02-01), Todd
patent: 2471024 (1949-05-01), Cramer
patent: 2869392 (1959-01-01), Muller
patent: 3146592 (1964-09-01), Johnson
patent: 3235308 (1966-02-01), Conner
patent: 3339973 (1967-09-01), Doerner
patent: 3539142 (1970-11-01), Morand
patent: 3601444 (1971-08-01), Doerner
patent: 3603640 (1971-09-01), Doerner
patent: 3627252 (1971-12-01), Yamaguchi
patent: 3675887 (1972-07-01), Meinhardt
patent: 3709535 (1973-01-01), Rothermel
patent: 3711054 (1973-01-01), Bauer
patent: 3788587 (1974-01-01), Stemmler
patent: 3790119 (1974-02-01), Bauer
patent: 3853297 (1974-12-01), Drolet
patent: 3880465 (1975-04-01), Scheben
patent: 3913975 (1975-10-01), Carter
patent: 3955850 (1976-05-01), Toso
patent: 3982785 (1976-09-01), Ambasz
patent: 4061304 (1977-12-01), Schattmaier
patent: 4065176 (1977-12-01), Fontana
patent: 4076308 (1978-02-01), Slabon et al.
patent: 4099775 (1978-07-01), Mizelle
patent: 4101167 (1978-07-01), Ornberg
patent: 4161305 (1979-07-01), Williams
patent: 4198094 (1980-04-01), Bjerknes et al.
patent: 4214726 (1980-07-01), Karrip et al.
patent: 4295626 (1981-10-01), Large
patent: 4372611 (1983-02-01), Feddeler
patent: 4373692 (1983-02-01), Knoblauch et al.
patent: 4375301 (1983-03-01), Pergler et al.
patent: 4390206 (1983-06-01), Faiks et al.
patent: 4432582 (1984-02-01), Wiesmann et al.
patent: 4438898 (1984-03-01), Knoblauch et al.
patent: 4494795 (1985-01-01), Roossien et al.
patent: 4537445 (1985-08-01), Neuhoff
patent: 4561693 (1985-12-01), Brownlie et al.
patent: 4570895 (1986-02-01), Whitwam et al.
patent: 4626029 (1986-12-01), Brauning
patent: 4640488 (1987-02-01), Sakamoto
patent: 4640548 (1987-02-01), Desanta
patent: 4653806 (1987-03-01), Willi
patent: 4658660 (1987-04-01), Parker
patent: 4682814 (1987-07-01), Hansen
patent: 4709963 (1987-12-01), Uecker et al.
patent: 4720142 (1988-01-01), Holdredge et al.
patent: 4744603 (1988-05-01), Knoblock
patent: 4763951 (1988-08-01), Silverman
patent: 4776633 (1988-10-01), Knoblock et al.
patent: 4781353 (1988-11-01), Nishino
patent: 4790600 (1988-12-01), Behringer
patent: 4817760 (1989-04-01), Yamamura
patent: 4832402 (1989-05-01), Zund
patent: 4892354 (1990-01-01), Estkowski et al.
patent: 4906045 (1990-03-01), Hofman
patent: 4911501 (1990-03-01), Decker et al.
patent: 4966412 (1990-10-01), Dauphin
patent: 4986601 (1991-01-01), Inoue
patent: 5020816 (1991-06-01), Mulholland
patent: 5029940 (1991-07-01), Golynsky et al.
patent: 5035466 (1991-07-01), Mathews et al.
patent: 5046780 (1991-09-01), Decker et al.
patent: 5050931 (1991-09-01), Knoblock
patent: 5106157 (1992-04-01), Nagelkirk et al.
patent: 5108149 (1992-04-01), Ambasz
patent: 5114211 (1992-05-01), Desanta
patent: 5150948 (1992-09-01), Volkle
patent: 5192114 (1993-03-01), Hollington et al.
patent: 5203853 (1993-04-01), Caruso
patent: 5207479 (1993-05-01), Wickman et al.
patent: 5213295 (1993-05-01), Scholten et al.
patent: 5224758 (1993-07-01), Takamatsu et al.
patent: 5238294 (1993-08-01), Ishi et al.
patent: 5265938 (1993-11-01), Melhuish et al.
patent: 5282670 (1994-02-01), Karsten et al.
patent: 5288138 (1994-02-01), Stulik et al.
patent: 5318345 (1994-06-01), Olson
patent: 5328242 (1994-07-01), Steffens et al.
patent: 5333368 (1994-08-01), Kriener et al.
patent: 5348371 (1994-09-01), Miotto
patent: 5370445 (1994-12-01), Golynsky
patent: 5380065 (1995-01-01), Rohrer
patent: 5382077 (1995-01-01), Stumpf et al.
patent: 5385388 (1995-01-01), Faiks et al.
Exhibit A is a product catalog entitled "Northfield Furniture Components," dated Oct. 1991, published by EST Company, a division of Leggett & Platt, Inc. of Santa Fe Springs, California, disclosing various chair controls and chair components.
Exhibit B is a product brochure entitled "Relax Armrest," publication date unknown, published by RH Form AB, Bodafors, Sweden, dislosing an armrest.
Exhibit C is a product brochure entitled "The Chair Works," publication date unknown, published by The Chair Works, Inc., College Station, Texas, disclosing chairs having armrests.
Exhibit D is a product brochure entitled "Comforto.RTM.," publication date unknown, published by Haworth, Europe, disclosing various chairs with arms.
Exhibit E is a product brochure entitled "OfficeViews," publication date unknown, published by Sitag International, Irvine, California, disclosing various chairs with arms.
Exhibit F is a service assembly pictorial, published in 1993, by Steelcase Inc., assignee of the present invention, disclosing a method of partially disassembling a chair and adjusting a screw set in a chair height actuator lever to eliminate looseness in the lever.
Exhibit G is a drawing provided by Steelcase Inc., disclosing the prior art structure of the chair height actuator lever in Exhibit F. In "note 7," the drawing discloses a method of adjusting the pneumatic cylinder set screw to contact the spacer pin on the pneumatic cylinder during assembly to eliminate looseness in the lever.
Exhibit H is a drawing provided by Steelcase Inc., disclosing a prior art structure including a rubber torsion spring arrangement for a chair back support. The torsion spring arrangement includes a threaded adjustment member that threadably engages a torque arm on the torsion spring, the adjustment member including an end that abuts an upper chair structure.
Exhibit I are
Christensen Brian L.
Haan Michael W.
Heidmann Kurt R.
Knoblock Glenn A.
McClure Eric T.
Jr. Milton Nelson
Steelcase Inc.
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