Legs Interbraced Between Bottom And Ground Patents (Class 297/447.4)
  • Patent number: 9022482
    Abstract: An engagement protrusion (20) extending in the front/back direction of a frame body (13) is provided on one of the opposing surfaces of a notch (16) in the frame body (13) and a fitting member (17) opposite said notch; similarly, an engagement recess (13h) in which the engagement protrusion (20) fits is provided on the other of said surfaces. By means of the moment of the fitting member (17) resulting from the tension of a tension member (14), the engagement protrusion (20) and the engagement recess (13h) are prevented from separating.
    Type: Grant
    Filed: January 25, 2012
    Date of Patent: May 5, 2015
    Assignee: Okamura Corporation
    Inventors: Sayaka Morio, Ryo Igarashi
  • Patent number: 8777321
    Abstract: A stretching structure in which upholstery material can be installed in a frame body, enough deflection allowance of the upholstery material can be ensured. Upholstery material (14) is installed on the surface of a frame body (13) in a closed-loop shape, and is used as the seat or the backrest of a chair. A cross-sectional shape perpendicular to the longitudinal direction of each of the sections of the frame body (13) is provided with an upholstery material receiving section (21) having an engaging groove (20) which is open to the back surface side, and a U-shape section (23) having a recessed groove (22) which is open to the surface side inward more than the engaging groove (20). The upholstery material (14) is wound from the surface of the frame body (13) to the back surface side along the outer peripheral surface, and the edge section is fitted in the engaging groove (20) and tied up, thereby installing the upholstery material (14) in such a manner as to cover the surface of the U-shape section (23).
    Type: Grant
    Filed: February 9, 2011
    Date of Patent: July 15, 2014
    Assignee: Okamura Corporation
    Inventors: Hiroshi Masunaga, Sayaka Morio, Ryou Igarashi
  • Patent number: 8256845
    Abstract: A bamboo chair includes L-shaped first bamboo strips arranged in parallel, L-shaped third bamboo strips arranged in parallel, first reinforcing members fixedly connected between the straight horizontal sides of the L-shaped third bamboo strips and the straight horizontal sides of the L-shaped first bamboo strips in a parallel manner, a second reinforcing member fixedly connected between the arched vertical sides of the L-shaped first bamboo strips and the arched vertical sides of the L-shaped first bamboo strips at the bottom side, L-shaped second bamboo strips arranged in parallel and supported between the arched vertical sides of the L-shaped first bamboo strips and the arched vertical sides of the L-shaped third bamboo strips, and third reinforcing members respectively fixedly connected between the arched vertical sides of the L-shaped third bamboo strips and the straight horizontal sides of the L-shaped second bamboo strips and between the arched vertical sides of the L-shaped second bamboo strips and the
    Type: Grant
    Filed: September 28, 2010
    Date of Patent: September 4, 2012
    Inventor: Wen-Tsan Wang
  • Patent number: 7552975
    Abstract: A backrest attachment device for a chair is disclosed and includes a metal bow with two bends that is designed such that a shorter intermediate piece with a 90° bend is connected to a comparatively long flank, the shorter intermediate piece in turn having connected thereto a shorter end piece with a 90° bend, wherein an intended level formed by the long flank and the intermediate piece and an intended level formed by the intermediate piece and the end piece are perpendicular to each other, and wherein the metal bow is insertable with a long flank portion thereof through an elongated hole introduced into the backrest frame and interlocked with a simple rotary motion in an interlocking mechanism within the backrest frame, and wherein the end piece of the metal bow is connectable to the frame of the chair.
    Type: Grant
    Filed: April 19, 2007
    Date of Patent: June 30, 2009
    Assignee: Sedus Stoll AG
    Inventors: Klaus Maier, Kurt Buntru
  • Patent number: 7341228
    Abstract: A furniture frame and a furniture frame bracket wherein the furniture frame bracket comprises a bracket base, a first side member extending from the bracket base and a second side member extending from the bracket base in which the side members each include an extension located thereon wherein the side members and the extensions of the side members coact with the bracket base to wrap the bracket around a portion of a furniture frame, and a leg extending from the base for supporting a linkage between a first section and a second section of a furniture frame.
    Type: Grant
    Filed: May 24, 2004
    Date of Patent: March 11, 2008
    Inventors: Joel Grosaman, Howard Porter
  • Patent number: 7014261
    Abstract: A lightweight, inexpensive folding chair may have a seat with an interference fit support bracket may be provided. The seat may have a lightweight seat member constructed of a lightweight material, such as a blow-molded plastic, that is generally supported by two such support brackets. The support brackets may be affixed to the lightweight seat member by sliding the lightweight seat member into interference engagement with the support brackets. Thus, the lightweight seat member is supported against bending when the chair is in use, in a way that does not concentrate stresses in the lightweight seat member to cause deformation and failure. The support brackets may have an enclosing shape so that the lightweight seat member is unable to move laterally or transversely out of engagement with the support brackets. The support brackets may thus have lips extending into the lightweight seat member to provide the enclosing shape.
    Type: Grant
    Filed: January 6, 2005
    Date of Patent: March 21, 2006
    Assignee: Lifetime Products, Inc.
    Inventor: Thayne B. Haney
  • Patent number: 6871906
    Abstract: A lightweight, inexpensive folding chair may have a seat with an interference fit support bracket may be provided. The seat may have a lightweight seat member constructed of a lightweight material, such as a blow-molded plastic, that is generally supported by two such support brackets. The support brackets may be affixed to the lightweight seat member by sliding the lightweight seat member into interference engagement with the support brackets. Thus, the lightweight seat member is supported against bending when the chair is in use, in a way that does not concentrate stresses in the lightweight seat member to cause deformation and failure. The support brackets may have an enclosing shape so that the lightweight seat member is unable to move laterally or transversely out of engagement with the support brackets. The support brackets may thus have lips extending into the lightweight seat member to provide the enclosing shape.
    Type: Grant
    Filed: March 17, 2003
    Date of Patent: March 29, 2005
    Assignee: Lifetime Products, Inc.
    Inventor: Thayne B. Haney
  • Patent number: 6543842
    Abstract: A lightweight, inexpensive folding chair may have a seat with an interference fit support bracket may be provided. The seat may have a lightweight seat member constructed of a lightweight material, such as a blow-molded plastic, that is generally supported by two such support brackets. The support brackets may be affixed to the lightweight seat member by sliding the lightweight seat member into interference engagement with the support brackets. Thus, the lightweight seat member is supported against bending when the chair is in use, in a way that does not concentrate stresses in the lightweight seat member to cause deformation and failure. The support brackets may have an enclosing shape so that the lightweight seat member is unable to move laterally or transversely out of engagement with the support brackets. The support brackets may thus have lips extending into the lightweight seat member to provide the enclosing shape.
    Type: Grant
    Filed: January 31, 2001
    Date of Patent: April 8, 2003
    Assignee: Lifetime Products, Inc.
    Inventor: Thayne B. Haney