Vehicle Seat And Passenger's Weight Measurement Device For Vehicle Seat

• US 20080079296A1
• Filed: 07/29/2005
• Published: 04/03/2008
• Est. Priority Date: 07/30/2004
• Status: Active Grant

• Current Assignee: Honda Motor Co., Ltd. (Honda Motor Company), TS Tech Company Limited
• Original Assignee: Honda Motor Co., Ltd. (Honda Motor Company), TS Tech Company Limited
• Inventors: Yamazaki, Tatsuya, Sato, Kenji, Endo, Shigeru, Nishide, Harutomi
• Granted Patent: US 7,793,557 B2
• Time in Patent Office: Days
• US Class Current: 297/217.2
• 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 2/0732 Attachment of seat frame to the slide, e.g. eyelets
• CPC Class Codes: B60N 2/4263 with anti-submarining systems
• CPC Class Codes: B60N 2/90 Details or parts not otherwise provided for
• CPC Class Codes: B60R 21/01516 using force or pressure sensing means
• CPC Class Codes: B60R 21/0152 using strain gauges
• CPC Class Codes: G01G 19/4142 for controlling activation of safety devices, e.g. airbag systems electrical circuits for triggering safety arrangements in case of vehicle accidents B60R21/015

Abstract

The submarine phenomenon can be prevented and the accuracy of a passenger'"'"'s weight measurement is improved.

A vehicle seat 1 comprises a pair of fixed lower rails 3 fixed on the floor of a passenger compartment, a pair of movable upper rails 4 which are engaged with the fixed lower rails 3 so as to be slidable in a front-and-rear direction with respect to each of the fixed lower rails 3, a sub frame 110 which is disposed at an upper side of the movable upper rails 4, load sensors 50, 60, 70, and 80 which lie between the sub frame 110 and the movable upper rails 4, brackets 8 and 9 which are disposed so as to erect them on each of the movable upper rails 4, and a submarine pipe 11 which is crossed between the brackets 8 and 9. The submarine pipe 11 is disposed to be slidable in a left-and-right direction with respect to the right bracket 9.

Claims

1. A vehicle seat, comprising:

a cushion,

a load sensor which is disposed under a seating face of the cushion and which measures a weight of a passenger who sits on the cushion,

a left mounting unit which is disposed on a left side under the seating face of the cushion,

a right mounting unit which is disposed on a right side under the seating face of the cushion, and

a bridging member which is provided between the left mounting unit and the right mounting unit and is disposed to at least one mounting unit selected from the left mounting unit and the right mounting unit so as to be slidable in a left-and-right direction with respect to the at least one mounting unit.

2. The vehicle seat as claimed in claim 1, wherein a mounting hole is formed on the at least one mounting unit to penetrate in the left-and-right direction and the bridging member is inserted into the mounting hole so as to be slidable in the left-and-right direction with respect to the at least one mounting unit.

3. The vehicle seat as claimed in claim 1, wherein a sectional area of the bridging member is larger than an area of the mounting hole at a position apart from the at least one mounting unit towards an end of the bridging member from the mounting hole.

4. The vehicle seat as claimed in claim 1, wherein the bridging member is a pipe member and an end of the crossing member flares out.

5. The vehicle seat as claimed in claim 1, wherein the bridging member is fixed to the other mounting unit of the left mounting unit and the right mounting unit, and is slidable in a left-and-right direction with respect to the one mounting unit of the left mounting unit and the right mounting unit.

6. A passenger'"'"'s weight measurement device for a vehicle seat, comprising:

a pair of left and right movable rails which are disposed to be movable in a front-and-rear direction on each of a pair of left and right fixed rails fixed on a vehicle side,

a cushion frame disposed at an upper side of the pair of movable rails,

one load sensor which is disposed between one movable rail of the pair of movable rails and the cushion frame,

another load sensor which is disposed between the other movable rail of the pair of movable rails and the cushion frame, and

a bridging member which is provided between the pair of movable rails in between a front end of the cushion frame and a rear end of the cushion frame.

7. The passenger'"'"'s weight measurement device for the vehicle seat as claimed in claim 6, wherein the one load sensor is fixed to the one movable rail and the another load sensor is disposed to be movable in a left-and-right direction with respect to the other movable rail.