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公开(公告)号:US20240349897A1
公开(公告)日:2024-10-24
申请号:US18658222
申请日:2024-05-08
Applicant: Steelcase Inc.
Inventor: Kurt R. Heidmann , Russell T. Holdredge , Olukemi Chrissie Esi Johel , Gary Karsten , Nicholas Miles Krupansky , Nickolaus William Charles Deevers
IPC: A47C7/44
Abstract: A tilt control system includes a spring adjuster and compression spring, which may be removed in an unstressed condition. The tilt control system may also include a variable back stop having curved transition surfaces between the stop surfaces. A lumbar compensator may be integrated into a backrest, which may be coupled with a quick release to the base and actuated by sliding engagement with the seat.
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公开(公告)号:US20240245219A1
公开(公告)日:2024-07-25
申请号:US18425497
申请日:2024-01-29
Applicant: Steelcase Inc.
Inventor: Nickolaus William Charles Deevers , Carl V. Forslund, III , John Hamilton , Kurt R. Heidmann , James Ludwig , Bruce Smith , Aaron Michael Porterfield , Sharon L. Tracy , Paul Noll
Abstract: A body support structure includes a structural lattice structure having a first stiffness, and a compressive lattice structure supported by the structural lattice structure and having a second stiffness less than the first stiffness. A skin lattice structure is supported by the compressive lattice structure, wherein the skin lattice structure is resistant to shear deformation in response to a normal force and is expandable in a direction transverse to the normal force.
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公开(公告)号:US20240138573A1
公开(公告)日:2024-05-02
申请号:US18387696
申请日:2023-11-07
Applicant: Steelcase Inc.
Inventor: Nickolaus William Charles Deevers , Kurt R. Heidmann , Gary Karsten , Mark Spoelhof
Abstract: A body support structure includes a base, a seat and a backrest, with the backrest connected to the base with a torsion leaf spring. The torsion leaf spring may be configured with a plurality of fingers, and/or one or more flex regions. One or more struts may be connected between the seat or backrest and the base. In another aspect, the seat and/or backrest may be supported with one or more links that provide a counter-intuitive motion. In another aspect, a link may be coupled to a support with a flexible blade.
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公开(公告)号:US20240008651A1
公开(公告)日:2024-01-11
申请号:US18470873
申请日:2023-09-20
Applicant: Steelcase Inc.
Inventor: Nickolaus William Charles Deevers , Kurt R. Heidmann , Gordon J. Peterson , Russell T. Holdredge , Nathan Brock
IPC: A47C7/54
Abstract: A seating arrangement including a seat member, a base, and an arm assembly including an arm base having a central portion and a receiver portion and exclusively supported from the base via a central portion at a position located between lateral outermost edges of the seat member, an arm stalk telescopingly received within the receiver portion and movable between retracted and extended positions, an arm support supported by the arm stalk, where the arm support moves in a forward direction with respect to the seat member as the arm stalk is moved from the retracted position to the extended position, and a bearing arrangement positioned between the arm stalk and the receiver portion and including a bearing member located between the receiver portion of the arm base and the arm stalk and a biasing member configured to bias the bearing.
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公开(公告)号:US20220167747A1
公开(公告)日:2022-06-02
申请号:US17672978
申请日:2022-02-16
Applicant: Steelcase Inc.
Inventor: Nickolaus William Charles Deevers , Kurt R. Heidmann , Gordon J. Peterson , David Bodnar , James Ludwig , Nathan R. Brock , Mark Spoelhof
Abstract: A body support assembly includes a seat assembly and backrest assembly supported by a tilt control assembly. Methods of using and assembling the body support assembly are provided.
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公开(公告)号:USD921409S1
公开(公告)日:2021-06-08
申请号:US29714581
申请日:2019-11-25
Applicant: Steelcase Inc.
Designer: Nickolaus William Charles Deevers , Bruce Smith , Mark Spoelhof , Kurt R. Heidmann , Pascal Hien
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公开(公告)号:US20210015264A1
公开(公告)日:2021-01-21
申请号:US17062262
申请日:2020-10-02
Applicant: Steelcase Inc.
Inventor: Nickolaus Williams Charles Deevers , Kurt R. Heidmann
Abstract: A body support structure includes a shell having a central region, an outer peripheral region spaced from the central region, and at least one array extending between the central region and the outer peripheral region. The at least one array includes a plurality of spaced apart support members and at least one connector connecting adjacent support members within each array. The support members of the at least one array are progressively divided between the central portion and the outer peripheral edge.
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公开(公告)号:US10813463B2
公开(公告)日:2020-10-27
申请号:US16208206
申请日:2018-12-03
Applicant: Steelcase Inc.
Inventor: Nickolaus William Charles Deevers , Kurt R. Heidmann , Pascal Rolf Hien , Jeffrey A. Hall , John Colasanti , Michael Yancharas
Abstract: A backrest includes a frame having a pair of laterally spaced upright members connected with longitudinally spaced upper and lower members. A flexible shell has opposite sides coupled to the upright members and upper and lower portions coupled to the upper and lower members. The shell includes first and second slots extending longitudinally along opposite sides of the shell inboard of locations where the shell is connected to the upright members, and one or more third slots extending laterally along the lower portion of the shell above a location where the shell is connected to the lower member. Terminal ends of the one or more third slots are spaced apart from lower terminal ends of the first and second slots. In other embodiments, the shell is a three-dimensional molded component having a plurality of openings. In various embodiments, the slots and/or openings provide different levels of compliance to the backrest.
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公开(公告)号:USD869889S1
公开(公告)日:2019-12-17
申请号:US29628526
申请日:2017-12-05
Applicant: Steelcase Inc.
Designer: Nickolaus William Charles Deevers , Bruce Smith , Mark Spoelhof , Kurt R. Heidmann , Pascal Hien
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