SEAT FOR VEHICLES

• US 20180141474A1
• Filed: 04/19/2016
• Published: 05/24/2018
• Est. Priority Date: 04/23/2015
• Status: Active Grant

• Current Assignee: Tachi-S Company Limited
• Original Assignee: Tachi-S Company Limited
• Inventors: IMAYOU, Kazuya, IGARASHI, Toshiki, HIRANO, Yayoi, YAMAOKA, Shunsuke
• Granted Patent: US 10,173,556 B2
• Time in Patent Office: Days
• CPC Class Codes: B60N 2/06 slidable B60N2/12 , B60N2/2209 take precedence
• CPC Class Codes: B60N 2/20 the back-rest being tiltable, e.g. to permit easy access B60N2/04, B60N2/22 , B60N2/3002 take precedence
• CPC Class Codes: B60N 2/30 Non-dismountable or dismountable seats storable in a non-use position, e.g. foldable spare seats
• CPC Class Codes: B60N 2/3011 the back-rest being hinged on the cushion, e.g. "portefeuille movement"
• CPC Class Codes: B60N 2/304 by rotation only
• CPC Class Codes: B60N 2/3065 in a longitudinal-vertical plane
• CPC Class Codes: B60N 2/309 rods
• CPC Class Codes: B60N 2/32 convertible for other use
• CPC Class Codes: B60N 2/36 into a loading platform B60N2/065 takes precedence
• CPC Class Codes: B60N 2/859 specially adapted for rear seats

Abstract

The present invention has an object to provide a seat for vehicles in which a seat cushion escape mechanism can be space-saving. A seat for vehicles which has an escape mechanism (300) to shift a seat cushion frame (200) disposed on a base part (5) from a seating posture (200-1) to an escape posture (200-3) with the frame (200) placed forward of the base part (5) includes: a support leg part (301) having one end rotatably connected to the frame (200) and the other end rotatably connected to the base part (5); a guide part (201a) to be engaged with the one end of the support leg part (301) to guide the one end so as to lift the one end; a coil spring (305) biasing the support leg part (301) so as to have the one end guided by the guide part (201a) and flip up a portion (303) connected with the frame (200); and a second coil spring which is provided at the other end and applies a biasing force so as to rotate the one end of the support leg part (301) forward with the other end as a center.

Claims

1. A seat for vehicles having an escape mechanism to shift a seat cushion disposed on a base part from a normal seating posture through a flipped-up posture to an escape posture with the seat cushion placed forward of the base part, the escape mechanism comprising:

a support leg part having one end connected to a frame of the seat cushion rotatably around a first rotation shaft and another end connected to the base part rotatably around a second rotation shaft;

a guide part to be engaged with the one end of the support leg part to guide the one end so as to lift the one end;

a first coil spring biasing the support leg part so as to have the one end guided by the guide part and flip up a portion connected with the frame; and

a second coil spring provided on the second rotation shaft to apply a biasing force so as to rotate the one end of the support leg part forward around the second rotation shaft.

2. The seat for vehicles according to claim 1, wherein

in the support leg part, when the seat cushion is in the seating posture, the other end is located on a front side of the base part and the one end extends toward a rear of the base part, and

the first coil spring is located between the frame and the support leg part so as to bias the one end of the support leg part forward.

3. The seat for vehicles according to claim 2, wherein the first coil spring is located under a seating surface of the seat cushion.

4. The seat for vehicles according to claim 3, further comprising a connecting member being fixed in a middle portion of the frame in a longitudinal direction and having the first rotation shaft and the guide part.

5. The seat for vehicles according to claim 4, wherein

when the seat cushion is in the seating posture, the connecting member has the guide part behind the first rotation shaft, and

the support leg part has a guided part to be engaged with the guide part, on an opposite side of the second rotation shaft with respect to the portion connected with the frame.

6. The seat for vehicles according to claim 5, wherein the first coil spring is hooked onto the guided part of the support leg part.