Seat device of vehicle

Patent metadata

Field	Value
Publication number	US-9707864-B2
Application number	US-201615051014-A
Country	US
Kind code	B2
Filing date	Feb 23, 2016
Priority date	Mar 10, 2015
Publication date	Jul 18, 2017
Grant date	Jul 18, 2017

Abstract

A slide rail is configured to have a specified front-upward slant angle within a range of 9-11 degrees relative to a floor panel such that a seat slides longitudinally with the specified front-upward slant angle and adjustably over a specified longitudinal range along the slide rail, a thigh support portion is provided at a front end portion of a seat cushion so as to swing vertically around its rear portion with an adjustable swing-angle range of 4 degrees or greater, and a seat device of a vehicle does not comprise any other lift mechanism for adjusting a height of the seat than the slide rail having the specified front-upward slant angle.

First claim

What is claimed is:

1. A seat device of a vehicle, comprising:
a seat comprising a seat cushion and a seatback which is connected to a rear end portion of the seat cushion; and
a slide rail provided to attach the seat to a floor panel such that a position of the seat is longitudinally adjustable within a specified longitudinal range,
wherein said slide rail as a specified front-upward slant angle within a range of 9-11 degrees relative to the floor panel such that said seat slides longitudinally with said specified front-upward slant angle and is adjustable over said specified longitudinal range along the slide rail, a thigh support portion is provided at a front end portion of said seat cushion so as to swing vertically around a rear portion thereof with an adjustable swing-angle range of 4 degrees or greater, and said seat device of the vehicle does not comprise any other lift mechanism for adjusting a height of said seat other than said slide rail.

2. The seat device of the vehicle of claim 1 , further comprising an assist spring for operational-force reduction which reduces an operational force of adjusting the position of said seat along said slide rail having the specified front-upward slant angle.

3. The seat device of the vehicle of claim 1 , wherein the front-upward slant angle of said slide rail is set substantially at 10 degrees.

4. The seat device of the vehicle of claim 1 , wherein the adjustable swing-angle range of said thigh support portion is set substantially at 5 degrees.

5. The seat device of the vehicle of claim 1 , wherein the specified longitudinal range of the seat's adjustable position and the front-upward slant angle of said slide rail are set such that a first shortest clear-vision distance between eye points of a driver and a ground intersection point of a line of sight of an AF05 seated in the seat located at a forward position of the side rail is within a preset specified distance range and a second shortest clear-vision distance between eye points of the driver and the ground intersection point to the line of sight of a AM95 seated in the seat located at a rear end position of the slide rail is within said preset specified distance range.

6. The seat device of the vehicle of claim 5 , wherein said specified distance range of the first and second shortest clear-vision distance is set at 7.0-8.1 m.

7. The seat device of the vehicle of claim 5 , wherein a difference between a largest distance and a smallest distance of said preset specified distance range of the first and second shortest clear-vision distances is set at 1.5 m or less.

8. The seat device of the vehicle of claim 1 , wherein a steering wheel of the vehicle is not provided with a telescopic mechanism.

9. A seat device of a vehicle, comprising:
a seat comprising a seat cushion and a seatback which is connected to a rear end portion of the seat cushion; and
a slide rail provided to attach the seat to a floor panel such that a position of the seat is longitudinally adjustable within a specified longitudinal range,
wherein said slide rail has a specified front-upward slant angle within a range of 9-11 degrees relative to the floor panel such that said seat slides longitudinally with said specified front-upward slant angle and is adjustable over said specified longitudinal range along the slide rail.

10. The seat device of the vehicle of claim 9 , further comprising an assist spring for operational-force reduction which reduces an operational force of adjusting the position of said seat along said slide rail having the specified front-upward slant angle.

11. The seat device of the vehicle of claim 9 , wherein the front-upward slant angle of said slide rail is set substantially at 10 degrees.

12. A seat device of a vehicle, comprising:
a seat comprising a seat cushion and a seatback which is connected to a rear end portion of the seat cushion; and
a slide rail provided to attach the seat to a floor panel such that a position of the seat is longitudinally adjustable within a specified longitudinal range and said slide rail has a specified front-upward slant angle relative to the floor panel such that said seat slides longitudinally with said specified front-upward slant angle and is adjustable over said specified longitudinal range along the slide rail;
wherein the specified longitudinal range of the seat's adjustable position and the front-upward slant angle of said slide rail are set such that a first shortest clear-vision distance between eye points of a driver and a ground intersection point of a line of sight of an AF05 seated in the seat located at a forward position of the side rail is within a preset specified distance range and a second shortest clear-vision distance between eye points of the driver and the ground intersection point to the line of sight of an AM95 seated in the seat located at a rear end position of the slide rail is within said preset specified distance range; and
said seat device of the vehicle does not comprise any other lift mechanism for adjusting a height of said seat other than said slide rail.

13. The seat device of the vehicle of claim 12 , further comprising an assist spring for operational-force reduction which reduces an operational force of adjusting the position of said seat along said slide rail having the specified front-upward slant angle.

14. The seat device of the vehicle of claim 12 , wherein the front-upward slant angle of said slide rail is set within a range of 9-11 degrees relative to the floor panel.

15. The seat device of the vehicle of claim 14 , wherein the front-upward slant angle of said slide rail is set substantially at 10 degrees.

Assignees

• Mazda Motor

Inventors

• Mizutani Syogo
• Ohtsubo Tomonori
• Takeuchi Yoshinori
• Horiue Masayoshi

Classifications

• B60N2/16

  height-adjustable · CPC title

• B60N2/06 Primary

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

• B60N2002/0208

  the seat or seat part turning about or moving along an inclined axis · CPC title

• B60N2/62 Primary

  Thigh-rests {(B60N2/914 takes precedence)} · CPC title

• B60N2/22 Primary

  the back-rest being adjustable {(B60N2/2878 takes precedence)} · CPC title