LOWER LIMB PROTECTING AIR BAG

• US 20160052479A1
• Filed: 08/24/2015
• Published: 02/25/2016
• Est. Priority Date: 08/25/2014
• Status: Active Grant

• Current Assignee: Toyoda Gosei Company Limited (Toyota Motor Corporation)
• Original Assignee: Toyoda Gosei Company Limited (Toyota Motor Corporation)
• Inventors: KOMATSU, Takanori
• Granted Patent: US 9,365,179 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: B60R 2021/23169 specially adapted for knee protection
• CPC Class Codes: B60R 2021/23324 Inner walls crating separate compartments, e.g. communicating with vents
• CPC Class Codes: B60R 21/206 in the lower part of dashboards, e.g. for protecting the knees
• CPC Class Codes: B60R 21/231 characterised by their shape, construction or spatial configuration
• CPC Class Codes: B60R 21/233 comprising a plurality of individual compartments; comprising two or more bag-like members, one within the other B60R21/232 takes precedence
• CPC Class Codes: B60R 21/261 with means other than bag structure to diffuse or guide inflation fluid

Abstract

A lower limb protecting air bag, folded stored in front of an occupant seated in a seat and inflatable to cover the front of the lower limbs of the occupant by inflation gas supplied therein, includes: a main body inflation part configured to cover the front of the lower limbs of the occupant when inflation is completed; and a shin protection part arranged at least on one end side of the main body inflation part in the horizontal direction and projectable backward from the main body inflation part for covering the lateral side of the shins of the occupant in the inflation completed time, wherein the shin protection part completes inflation with an internal pressure higher than that of the main body inflation part.

Claims

1. A lower limb protecting air bag, folded stored in front of an occupant seated in a seat and inflatable to cover the front of the lower limbs of the occupant by inflation gas supplied therein, comprising:

a main body inflation part configured to cover the front of the lower limbs of the occupant when inflation is completed; and

a shin protection part arranged at least on one end side of the main body inflation part in the horizontal direction and projectable backward from the main body inflation part for covering the lateral side of the shins of the occupant in the inflation completed time, wherein

the shin protection part completes inflation with an internal pressure higher than that of the main body inflation part.

2. A lower limb protecting air bag according to claim 1, wherein:

the shin protection part communicates with the main body inflation part and inflation gas is supplied therein through the main body inflation part; and

a check valve, configured to prevent the inflation gas supplied into the shin protection part from flowing out toward the main body inflation part, is provided in a communication part enabling communication between the shin protection part and the main body inflation part.