Backrest and chair

US11439239B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-11439239-B2
Application numberUS-201917285987-A
CountryUS
Kind codeB2
Filing dateOct 17, 2019
Priority dateOct 19, 2018
Publication dateSep 13, 2022
Grant dateSep 13, 2022

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

A backrest includes: a backrest body against which a seated person leans a back thereof, a backrest support positioned behind and supporting the backrest body; and an armrest body provided outside in a width direction of the backrest body and supported by the backrest support so as to move up and down at a position separated from the backrest body. A chair includes the above-described backrest.

First claim

Opening claim text (preview).

What is claimed is: 1. A backrest, comprising: a backrest body against which a seated person leans a back thereof; a backrest support positioned rear side of the backrest body and supporting the backrest body; an armrest body provided at a position outside the width of the backrest body in a width direction and supported by the backrest support so as to move up and down at a position separated from the backrest body; and an armrest body support attached to the backrest support, the armrest body being attached to the armrest body support so as to move up and down, wherein the backrest support includes a connecting part to which the armrest body support is connected in a state where the armrest body support contacts the connecting part from a position outside the width of the backrest support in the width direction, the armrest body support is provided at a rear side of the backrest body, and the backrest body includes a front shielding wall, the front shielding wall shielding a connection point between the connecting part and the armrest body support, the front shielding wall provided in front of the connection point. 2. The backrest according to claim 1 , wherein the backrest body includes an outer peripheral frame, and a surface material stretched on the outer peripheral frame and covering at least part of an outer edge of the outer peripheral frame. 3. A chair comprising the backrest according to claim 1 . 4. A backrest, comprising: a backrest body against which a seated person leans a back thereof; a backrest support positioned rear side of the backrest body and supporting the backrest body; an armrest body provided at a position outside the width of the backrest body in a width direction and supported by the backrest support so as to move up and down at a position separated from the backrest body; and an armrest body support attached to the backrest support, the armrest body being attached to the armrest body support so as to move up and down, wherein the backrest support includes a connecting part to which the armrest body support is connected in a state where the armrest body support contacts the connecting part from a position outside the width of the backrest support in the width direction, the backrest support includes a rear shielding wall, the rear shielding wall protruding outward in the width direction from a rear edge of the connecting part, the rear shielding wall shielding a connection point between the connecting part and the armrest body support, the rear shielding wall provided rear side of the connection point. 5. The backrest according to claim 4 , wherein the backrest body includes an outer peripheral frame, and a surface material stretched on the outer peripheral frame and covering at least part of an outer edge of the outer peripheral frame. 6. A chair comprising the backrest according to claim 4 .

Assignees

Inventors

Classifications

  • A47C7/40Primary

    for the back · CPC title

  • the parts being arm-rests · CPC title

  • A47C1/0303Primary

    adjustable rectilinearly in vertical direction · CPC title

  • of adjustable type (adjustable arm-rests of reclining or easy chairs A47C1/03) · CPC title

Patent family

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Frequently asked questions

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What does patent US11439239B2 cover?
A backrest includes: a backrest body against which a seated person leans a back thereof, a backrest support positioned behind and supporting the backrest body; and an armrest body provided outside in a width direction of the backrest body and supported by the backrest support so as to move up and down at a position separated from the backrest body. A chair includes the above-described backrest.
Who is the assignee on this patent?
Okamura Corp
What technology area does this patent fall under?
Primary CPC classification A47C7/40. Mapped technology areas include Human Necessities.
When was this patent published?
Publication date Tue Sep 13 2022 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 6 related publications on this page (citations in our corpus or others sharing the same primary CPC).