Vehicle seat

Patent metadata

Field	Value
Publication number	US-11279272-B2
Application number	US-201716490433-A
Country	US
Kind code	B2
Filing date	Sep 13, 2017
Priority date	Mar 1, 2017
Publication date	Mar 22, 2022
Grant date	Mar 22, 2022

Abstract

Provided is vehicle seat with a seat cushion and a seat back, the vehicle seat comprising: a pair of cushion side frames; a duct extending from the seat cushion along a rear side of a cushion frame toward the seat back and connecting an air passage and a blower, the air passage being formed in at least one of the seat cushion and the seat back; and a side frame cover configured to cover at least part of the cushion side frame. The side frame cover includes a duct cover portion configured to cover part of the duct at the rear side of the cushion frame.

First claim

The invention claimed is:

1. A vehicle seat with a seat cushion and a seat back, the vehicle seat comprising:
a pair of side frames;
a duct extending from the seat cushion along a rear side of a frame of the seat cushion toward the seat back and connecting an air passage and a blower, the air passage being formed in at least one of the seat cushion and the seat back, the duct including:
a narrower portion located at the rear side of the frame of the seat cushion, wherein a dimension of the narrower portion in a lateral direction is smaller than a dimension thereof in a direction perpendicular to the lateral direction,
a wider portion located under the seat cushion and extending in a front-rear direction, wherein a dimension of the wider portion in the lateral direction is greater than a dimension thereof in a vertical direction, and
a connecting portion connecting the narrower portion and the wider portion,
wherein the connecting portion has a dimension in the lateral direction increasing with increasing a distance from the narrower portion toward the wider portion, and a dimension in the vertical direction decreasing with increasing the distance from the narrower portion toward the wider portion;

a reclining mechanism by which the seat back is supported rotatably relative to the seat cushion; and
a side frame cover comprising:
a side frame cover portion configured to cover at least part of the pair of side frames,
a duct cover portion configured to cover at least part of the duct at the rear side of the frame of the seat cushion, and
a reclining mechanism cover portion configured to cover the reclining mechanism,
wherein the side frame cover portion, the reclining mechanism cover portion, and the duct cover portion are formed integrally in one piece, and
wherein the duct cover portion comprises a rear cover portion extending laterally inward.

2. The vehicle seat according to claim 1 , wherein the duct includes a flexible portion having flexibility at the rear side of the frame of the seat cushion, and
wherein the duct cover portion is configured to cover at least part of the flexible portion.

3. The vehicle seat according to claim 1 , wherein the duct cover portion includes a protruding portion protruding toward the duct, the protruding portion being engageable with the duct.

4. The vehicle seat according to claim 2 , wherein the pair of side frames include a pair of cushion side frames constituting left and right frames of the seat cushion,
wherein the frame of the seat cushion includes, in addition to the pair of the cushion side frames, a rear frame connecting rear portions of the pair of cushion side frames,
wherein the duct includes a bellows portion configured as the flexible portion at a rear side of the rear frame, and
wherein the bellows portion is located above a lower end of the rear frame.

5. The vehicle seat according to claim 1 , wherein the pair of side frames include a pair of cushion side frames constituting left and right frames of the seat cushion,
wherein the frame of the seat cushion includes, in addition to the pair of the cushion side frames, a front frame connecting front portions of the pair of cushion side frames, and a rear frame connecting rear portions of the pair of cushion side frames,
wherein the vehicle seat further comprises a wire member laid to connect the front frame and the rear frame,
wherein the wire member includes a hook portion hooked on the rear frame, and
wherein a portion of the duct extending at a rear side of the rear frame is located at a position different from a position of the hook portion in the lateral direction.

6. The vehicle seat according to claim 1 , comprising a sensor located under one of the pair of side frames,
wherein the duct is, in the lateral direction, located closer to another of the pair of side frames than to the one of the pair of side frames.

7. The vehicle seat according to claim 1 , wherein the duct includes a retreated portion located, at the rear side of the frame of the seat cushion, in a position laterally inward of the pair of side frames and closer to one side frame of the pair of side frames than to a laterally central position between the pair of side frames.

8. The vehicle seat according to claim 7 , wherein the retreated portion extends obliquely in a downward-and-frontward direction.

9. The vehicle seat according to claim 7 , wherein the pair of side frames include a pair of cushion side frames constituting left and right frames of the seat cushion,
wherein the vehicle seat further comprises a supporting member located between the pair of cushion side frames to receive a load from an occupant, and
wherein the duct includes a lower inclined portion located under the supporting member, the lower inclined portion extending obliquely in a rearward-and-downward direction.

10. The vehicle seat according to claim 7 , comprising a supporting member located between the pair of side frames to receive a load from an occupant,
wherein the duct includes a portion located at a side opposite to an occupant side of the supporting member,
wherein the supporting member includes a plurality of wire members arranged in rows and a plastic member connecting the wire members, and
wherein the plastic member is located to overlap the duct as viewed from the occupant side.

11. The vehicle seat according to claim 7 , wherein the duct includes a lower tubular portion located under the seat cushion,
the lower tubular portion comprising:
a first portion extending in a front-rear direction, the first portion having a front end connected to the blower;
a second portion extending from a rear end of the first portion obliquely in a laterally- outward-and-rearward direction;
a third portion extending from a rear end of the second portion rearward; and
a branch tubular portion extending from the third portion upward and connected to the air passage formed in the seat cushion.

12. The vehicle seat according to claim 11 , wherein the lower tubular portion comprises:
a fourth portion extending from a rear end of the third portion obliquely in a laterally- outward-and-rearward direction; and
a fifth portion extending from a rear end of the fourth portion rearward.

13. The vehicle seat according to claim 1 , wherein the pair of side frames include a pair of cushion side frames constituting left and right frames of the seat cushion,
wherein the vehicle seat further comprises a supporting member located between the pair of cushion side frames to receive a load from an occupant, and
wherein the wider portion is located under the supporting member, in a position closer to the one side frame of the pair of side frames than to a laterally central position between the pair of side frames.

14. The vehicle seat according to claim 1 , wherein the retreated portion includes the narrower portion.

15. The vehicle seat according to claim 1 , comprising:
a plate-shaped pressure-receiving member configured to receive a load from an occupant; and
a pad member configured to cover an occupant side of the pressure-receiving member,
wherein the air passage is formed in the pad member,
wherein the duct is connected to the air passage from a side opposite to an occupant side of the pad member, and
wherein the pressure-receiving member has an opening through which the duct is disposed.

16. The vehicle seat according to claim 15 , comprising a connecting frame connecting the pair of side frames,
wherein the duct includes a first flat portion which is located at a side opposite to an occupant side of the connec

Assignees

• Ts Tech Co Ltd

Inventors

• Hoshi Yuichiro
• Kobayashi Kazuki
• Tanaka Tomohisa

Classifications

• B60N2/5621 Primary

  by air · CPC title

• B60N2/5825

  by hooks, staples, clips, snap fasteners or the like · CPC title

• B60N2/682

  Joining means · CPC title

• B60N2/5642

  with circulation of air through a layer inside the seat · CPC title

• B60N2/5635

  coming from the passenger compartment · CPC title