Vehicular seat

Patent metadata

Field	Value
Publication number	US-9884571-B2
Application number	US-201414897760-A
Country	US
Kind code	B2
Filing date	Jun 12, 2014
Priority date	Jun 14, 2013
Publication date	Feb 6, 2018
Grant date	Feb 6, 2018

Abstract

A vehicle seat having a seat back and seat cushion connected to the seat back, the seat back and seat cushion being retractable to a retraction floor disposed lower than a vehicle body floor, is described. The vehicle seat includes: a support base connected to the vehicle body floor, disposed below the seat cushion, and pivotally connected to a lower end of the seat back; a detachable leg having an upper end attached to the seat cushion and lower end connectable to the support base; a leg retaining member attached to the support base to detachably retain the lower end of the detachable leg; and a base cover that covers the support base. The leg retaining member is disposed at a rear side of a front end of a portion of the base cover in a front to back direction of the seat to cover the support base from above.

First claim

The invention claimed is:

1. A vehicle seat having a seat back and a seat cushion connected to the seat back, the seat back and the seat cushion being retractable to a retraction floor disposed in a position lower than a vehicle body floor, the vehicle seat comprising:
a support base connected to the vehicle body floor, disposed below the seat cushion, and pivotally connected to a lower end of the seat back so that the lower end of the seat back is pivotable;
a detachable leg having i) an upper end attached to the seat cushion and ii) a lower end connectable to the support base;
a leg retaining member attached to the support base and configured to retain the lower end of the detachable leg so that the lower end of the detachable leg is detachable; and
a base cover that covers the support base from above the support base;
wherein the leg retaining member is disposed at a rear side of a front end of a portion of the base cover in a front to back direction of the seat, the portion of the base cover configured to cover the support base from above the support base,
wherein the seat back is pivotable relative to the support base for movement of the seat cushion to the retraction floor,
wherein the detachable leg is pivotable relative to the seat cushion based on the movement of the seat cushion toward the retraction floor to be detachable from the leg retaining member.

2. The vehicle seat according to claim 1 ,
wherein the base cover comprises a leg guide portion configured to guide the detachable leg so that the detachable leg, when detached from the leg retaining member, is retracted to the seat cushion, and
wherein the leg guide portion is disposed, relative to the detachable leg, in a direction of the movement of the seat cushion.

3. The vehicle seat according to claim 1 , wherein the upper end of the detachable leg attached to the seat cushion is disposed at a front side of the lower end of the detachable leg connected to the support base in the front to back direction of the seat.

4. The vehicle seat according to claim 2 , wherein the leg guide portion is formed in a protruding manner upward from an upper surface of the base cover and is integrally formed with the base cover.

5. The vehicle seat according to claim 2 , wherein the leg guide portion protrudes from an outer surface of the base cover in the direction of the movement of the seat cushion.

6. The vehicle seat according to claim 2 , wherein the retraction floor is disposed at a front side of the vehicle body floor in the front to back direction of the seat, and
wherein the base cover comprises a leg movement restriction portion which is disposed at a rear side of the leg retaining member in the front to back direction of the seat and which restricts rearward movement of the detachable leg from the leg retaining member in the front to back direction of the seat.

7. The vehicle seat according to claim 6 , wherein the leg movement restriction portion is integrally formed with the base cover.

8. The vehicle seat according to claim 6 , wherein the leg movement restriction portion comprises a protruding portion that protrudes upward from an upper surface of the base cover.

9. The vehicle seat according to claim 8 , wherein the protruding portion of the leg movement restriction portion is jutted forward in the front to back direction of the seat.

10. The vehicle seat according to claim 6 , wherein the leg movement restriction portion is positioned to overlap the leg guide portion in a seat width direction.

11. A vehicle seat having a seat back and a seat cushion connected to the seat back, the seat back and the seat cushion being retractable to a retraction floor disposed in a position lower than a vehicle body floor, the vehicle seat comprising:
a support base connected to the vehicle body floor, disposed below the seat cushion, and pivotally connected to a lower end of the seat back so that the lower end of the seat back is pivotable;
a detachable leg having i) an upper end attached to the seat cushion and ii) a lower end connectable to the support base;
a leg retaining member attached to the support base and configured to retain the lower end of the detachable leg so that the lower end of the detachable leg is detachable;
a base cover that covers the support base from above the support base;
a seat body that comprises the seat back and the seat cushion; and
a seat pivot shaft attached on the support base and connected to a first end of the seat body in the front to back direction of the seat so that the seat body is pivotable;
wherein the leg retaining member is disposed at a rear side of a front end of a portion of the base cover in a front to back direction of the seat, the portion of the base cover configured to cover the support base from above the support base,
wherein the upper end of the detachable leg is attached to a second end of the seat body in the front to back direction of the seat,
wherein a leg movement restriction portion i) is configured to restrict a movement path of the detachable leg when detached from the leg retaining member based on a movement of the seat body, and ii) is disposed at the base cover, the leg movement restriction portion being disposed, relative to the leg retaining member, in a direction opposite to a direction in which the detachable leg moves from a position in which the detachable leg is retained by the leg retaining member, and
wherein the leg movement restriction portion comprises a contact portion, contactable with the detachable leg, and a protruding portion, disposed above the contact portion, wherein the protruding portion protrudes toward the detachable leg relative to an imaginary plane which i) is perpendicular to a direction in which the detachable leg is brought into contact with the contact portion, and ii) passes through the contact portion.

12. The vehicle seat according to claim 11 , wherein the retraction floor is provided in a front side of the vehicle body floor in the front to back direction of the seat, the seat pivot shaft is connected to a rear end of the seat body in the front to back direction of the seat, and the upper end of the detachable leg is attached to a front end of the seat body in the front to back direction of the seat,
wherein the leg movement restriction portion is disposed at a rear side of the leg retaining member in the front to back direction of the seat, and
wherein the protruding portion protrudes forward relative to the imaginary plane in the front to back direction of the seat.

13. The vehicle seat according to claim 11 , wherein a contact surface of the leg movement restriction portion with which the detachable leg is brought into contact is inclined toward the detachable leg relative to the imaginary plane.

14. The vehicle seat according to claim 11 , wherein the contact portion is disposed, relative to a plane which is defined by the leg retaining member and a protruding tip end of the protruding portion, in a direction opposite to a direction in which the detachable leg moves from a position in which the detachable leg is retained by the leg retaining member.

15. The vehicle seat according to claim 11 , wherein the leg movement restriction portion and a leg retraction recessed portion are disposed on an upper surface of the base cover, the leg retraction recessed portion being disposed closer to the leg retaining member than the leg movement restriction portion in the front to back direction of the seat and configured to be recessed toward the leg retaining member, the leg retraction recessed portion configured to guide the detachable leg to be retained

Assignees

• Ts Tech Co Ltd

Inventors

• Akutsu Takeshi
• Kitagawa Daisuke
• Murayama Taro

Classifications

• B60N2/06 Primary

  slidable (B60N2/12 {, B60N2/2209} take precedence) · CPC title

• B60N2/3013

  the back-rest being hinged on the vehicle frame · CPC title

• B60N2/3047

  the cushion being hinged at the back-rest · CPC title

• B60N2/70

  Upholstery springs {; Upholstery} · CPC title

• B60N2/43

  Safety locks (for back-rests B60N2/433) · CPC title