公开(公告)号：US10966530B2

公开(公告)日：2021-04-06

申请号：US16307795

申请日：2017-06-09

Applicant: OKAMURA CORPORATION

Inventor： Hiroshi Masunaga ,  Shinpei Totsuka

IPC: A47C7/40 ,  A47C7/46 ,  A47C7/02

Abstract: A backrest (7) includes: a tensile material (71) on which a load support surface (71f) configured to receive a load of a seated person is formed; a back front frame (80F) that supports an outer peripheral end portion (71e) of the tensile material (71); an attachment portion (87) which is formed in the back front frame (80F) and faces the tensile material (71) in a state where the attachment portion (87) is separated from the tensile material (71) in a direction intersecting the load support surface (71f); and a lumber support (200) that is attachable to and detachable from the attachment portion (87), in which the lumber support (200) includes an attaching portion (222) which extends in a direction along the load support surface (71f), is inserted into a gap (S) between the tensile material (71) and the attachment portion (87), and is fixed to the attachment portion (87).

公开(公告)号：USD891843S1

公开(公告)日：2020-08-04

申请号：US29641907

申请日：2018-03-26

Applicant: Okamura Corporation

Designer： Shinpei Totsuka

公开(公告)号：USD1039894S1

公开(公告)日：2024-08-27

申请号：US29829325

申请日：2022-03-04

Applicant: OKAMURA CORPORATION

Designer： Shinpei Totsuka

Abstract: FIG. 1 is a front perspective view of a chair showing my new design;
FIG. 2 is a rear perspective view thereof;
FIG. 3 is a front elevation view thereof;
FIG. 4 is a rear elevation view thereof;
FIG. 5 is a right side elevation view thereof;
FIG. 6 is a left side elevation view thereof;
FIG. 7 is a top plan view thereof; and,
FIG. 8 is a bottom plan view thereof.
The broken lines shown in the drawings illustrate portions of the chair that form no part of the claimed design.

公开(公告)号：USD741099S1

公开(公告)日：2015-10-20

申请号：US29485315

申请日：2014-03-18

Applicant: OKAMURA CORPORATION

Designer： Ryou Igarashi ,  Shinpei Totsuka

公开(公告)号：USD1039893S1

公开(公告)日：2024-08-27

申请号：US29829329

申请日：2022-03-04

Applicant: OKAMURA CORPORATION

Designer： Shinpei Totsuka

Abstract: FIG. 1 is a front perspective view of a chair showing my new design;
FIG. 2 is a rear perspective view thereof;
FIG. 3 is a front elevation view thereof;
FIG. 4 is a rear elevation view thereof;
FIG. 5 is a right side elevation view thereof;
FIG. 6 is a left side elevation view thereof;
FIG. 7 is a top plan view thereof; and,
FIG. 8 is a bottom plan view thereof.
The broken lines shown in the drawings illustrate portions of the chair that form no part of the claimed design.

公开(公告)号：US10932573B2

公开(公告)日：2021-03-02

申请号：US16307795

申请日：2017-06-09

Applicant: OKAMURA CORPORATION

Inventor： Hiroshi Masunaga ,  Shinpei Totsuka

IPC: A47C7/40 ,  A47C7/46 ,  A47C7/02

Abstract: A backrest (7) includes: a tensile material (71) on which a load support surface (71f) configured to receive a load of a seated person is formed; a back front frame (80F) that supports an outer peripheral end portion (71e) of the tensile material (71); an attachment portion (87) which is formed in the back front frame (80F) and faces the tensile material (71) in a state where the attachment portion (87) is separated from the tensile material (71) in a direction intersecting the load support surface (71f); and a lumber support (200) that is attachable to and detachable from the attachment portion (87), in which the lumber support (200) includes an attaching portion (222) which extends in a direction along the load support surface (71f), is inserted into a gap (S) between the tensile material (71) and the attachment portion (87), and is fixed to the attachment portion (87).