US 11,046,222 B2Granted

Fatigue reducing seat

AssigneeTs Tech Co., Ltd.

InventorKensuke Mizoi

Life of this patent

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Abstract

Provided is a seat which offers increased ride comfort and less fatigue felt even on long-time sitting. The seat includes a cushion frame, a first support member supported by the cushion frame and configured to support a seated occupant, second support members disposed at left and right sides of the first support member and configured to be deformable, and a restraining portion by which each second support member is restrained in such a manner that its laterally outer side is less likely to sink down than its laterally center side. The seat is configured such that an upper-side support surface for supporting a seated occupant is so restrained by the restraining portion as to assume a first position when no occupant is seated, and to assume a second position when an occupant is seated, the support surface facing further inward in the second position than in the first position.

Claims15

Dependent claims

A seat comprising:

a cushion frame;
a first support member supported by the cushion frame, the first support member being configured to support a seated occupant;
second support members disposed at left and right sides of the first support member, the second support members being configured to be deformable, each of the second support members consisting of an S spring slung across the cushion frame in a front-rear direction, the S spring winding leftward and rightward alternately, and each of the second support members comprising straight-line portions extending straight in a lateral direction, each of the second support members comprising a support surface at an upper side of a respective one of the second support members to support the seated occupant;
and
a restraining portion by which each of the second support members is restrained in such a manner that an outer side thereof in the lateral direction is less likely to sink down than a center side thereof in the lateral direction,
wherein the support surface is so restrained by the restraining portion as to assume a first position when no occupant is seated, and to assume a second position when an occupant is seated, the support surface being tilted sideways to face inward further in the second position than in the first position, the restraining portion comprising:
an oblique portion, and
a lateral portion, the lateral portion extending parallel to the second support member in the lateral direction, and the oblique portion extending from the lateral portion obliquely in a laterally-outward-and-upward direction,
wherein the lateral portion is fixed to a straight-line portion of the second support member, and
wherein an angle formed by the oblique portion of the restraining portion with a horizontal plane is greater than a rotation angle formed by the support surface after tilted to the second position, with the support surface in the first position.

7 more elements

A seat, comprising:

a cushion frame including a pair of side frames disposed separately from each other in a lateral direction, the pair of side frames extending in a front-rear direction;
a support member supported by the cushion frame, the support member being configured to support a seated occupant;
a cushion pad supported by the support member;
and
a restraining portion by which the support member is restrained, and
wherein the restraining portion includes a pair of third support members each including a first portion and a second portion, the second portion being disposed at a laterally inner side of the first portion, the first portion of each of the third support members being connected to a corresponding side frame, and the second portion of each of the third support members being disposed to support the support member,
wherein the cushion pad comprises a slit provided from a top surface toward a bottom of the cushion pad, and
wherein the slit overlaps the third support member as viewed from above or below.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/322,828Filed 31 Jul 2017
Priority: JP JP2016-1540104 Aug 2016
Published: US 2019/0184872 A120 Jun 2019
Granted: 29 Jun 2021
Term ends: Not estimatedThe source records don’t support an estimate.

Classification7 codes

A47C 7/30
With tensioned springs, e.g. of flat type: with springs meandering in a flat plane
B60N 2/7058
Springs: metallic springs
A47C 7/28
Seat parts: with tensioned springs, e.g. of flat type
B60N 2/70
Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles: upholstery springs ; Upholstery