Conveyance seat

• US 9,283,867 B2
• Filed: 03/26/2014
• Issued: 03/15/2016
• Est. Priority Date: 03/29/2013
• Status: Active Grant

• Current Assignee: Toyota Boshoku Kabushiki Kaisha
• Original Assignee: Toyota Boshoku Kabushiki Kaisha
• Inventors: Murata, Yoshiyuki, Nil, Tomoki
• Primary Examiner(s): Caputo, Lisa
• Assistant Examiner(s): Plumb, Nigel
• Application Number:
  US14/225,794
• Publication Number:
  US 20140290389A1
• Time in Patent Office: 720 Days
• Field of Search: 738/626.21, 738/623.81, 738/623.21, 738/623.91, 738/624.71, 738/626.36, 738/62
• US Class Current: 1/1
• CPC Class Codes: B60N 2/002 Seats provided with an occupancy detection means mounted therein or thereon detection means responsive to presence or absence of children B60N2/266
• CPC Class Codes: B60N 2/7017 characterised by the manufacturing process; manufacturing upholstery or upholstery springs not otherwise provided for
• CPC Class Codes: G01L 1/205 using distributed sensing elements

Abstract

A conveyance seat includes: a seating sensor structure including a pressure-sensing portion that is used to detect a pressure, the seating sensor structure being arranged inside a seat pad of the conveyance seat through integral foam-molding. The seating sensor structure is formed by laminating the pressure-sensing portion, a second sheet-shaped member and a first sheet-shaped member in this order from a seating face side. The first sheet-shaped member has a higher stiffness than the seat pad. The second sheet-shaped member has a lower stiffness than the first sheet-shaped member.

Claims

1. A conveyance seat comprising:

a seating sensor structure including a pressure-sensing portion to detect a pressure, the seating sensor structure being arranged inside a seat pad of the conveyance seat through integral foam-molding such that an upper surface and a lower surface of the seating sensor structure face the seat pad, the seating sensor structure located on a seating face side with respect to a portion of the seat pad, wherein

the seating sensor structure includes the pressure-sensing portion, a second sheet-shaped member and a first sheet-shaped member, laminated together, in this order from a seating face side,

the first sheet-shaped member has a higher stiffness than the seat pad, and

the second sheet-shaped member has a lower stiffness than the first sheet-shaped member.

2. The conveyance seat according to claim 1, wherein

the seating sensor structure is formed such that a third sheet-shaped member is laminated on the seating face side with respect to the pressure-sensing portion, and

the first sheet-shaped member and the third sheet-shaped member are integrally molded with the seat pad.

3. The conveyance seat according to claim 2, wherein

the third sheet-shaped member has a lower stiffness than the seat pad and has a higher stiffness than the second sheet-shaped member.