Protective cushion for vehicle occupant's head
First Claim
Patent Images
1. A protective cushion for a vehicle occupant'"'"'s head, comprising:
- an occupant-side sheet and a body-side sheet superposed on each other and sewn together so as to define a plurality of chambers into which a fluid is to be filled; and
a cylindrical member separate from and provided between the occupant-side sheet and the body-side sheet to define a longitudinal fluid passage at an upper portion of the cushion, wherein the chambers are arranged in the longitudinal direction of the vehicle, wherein the cylindrical member has at least one opening at an approximate middle of the cylindrical member to provide fluid communication between the fluid passage and the plurality of chambers; and
wherein the cylindrical member, the occupant-side sheet, and the body-side sheet are sewn together with a common thread.
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Accused Products
Abstract
A protective cushion or airbag for a vehicle occupant'"'"'s head which can introduce gas into chambers simultaneously or with desired time lags among the chambers. A cushion comprises an occupant-side sheet and an body-side sheet which are superposed on each other and sewn together so as to form vacant chambers between the sheets. A cylindrical member is disposed between upper portions of the sheets. Gas supplied through a rear end of the cylindrical member is introduced into the chambers openings and a front end of the cylindrical member.
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Citations
19 Claims
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1. A protective cushion for a vehicle occupant'"'"'s head, comprising:
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an occupant-side sheet and a body-side sheet superposed on each other and sewn together so as to define a plurality of chambers into which a fluid is to be filled; and
a cylindrical member separate from and provided between the occupant-side sheet and the body-side sheet to define a longitudinal fluid passage at an upper portion of the cushion, wherein the chambers are arranged in the longitudinal direction of the vehicle, wherein the cylindrical member has at least one opening at an approximate middle of the cylindrical member to provide fluid communication between the fluid passage and the plurality of chambers; and
wherein the cylindrical member, the occupant-side sheet, and the body-side sheet are sewn together with a common thread. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 18)
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13. A protective cushion for a vehicle occupant'"'"'s head comprising:
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an occupant-side sheet and a body-side sheet superposed on each other and sewn together so as to define a plurality of chambers into which a fluid is to be filled;
a cylindrical member separate from and provided between the occupant-side sheet and the body-side sheet to define a longitudinal fluid passage at an upper portion of the cushion, wherein the chambers are arranged in the longitudinal direction of the vehicle, and wherein the cylindrical member has at least one opening at an approximate middle of the cylindrical member to provide fluid communication between the fluid passage and the plurality of chambers; and
a closing element in the cylindrical member downstream from the at least one opening, wherein the closing element closes a sectional area of the cylindrical member. - View Dependent Claims (14, 15, 16)
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17. A protective cushion for a vehicle occupant'"'"'s head comprising:
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an occupant-side sheet and a body-side sheet superposed on each other and sewn together so as to define a plurality of chambers into which a fluid is to be filled;
a cylindrical member separate from and provided between the occupant-side sheet and the body-side sheet to define a longitudinal fluid passage at an upper portion of the cushion, wherein the chambers are arranged in the longitudinal direction of the vehicle, and wherein the cylindrical member has at least one opening at an approximate middle of the cylindrical member to provide fluid communication between the fluid passage and the plurality of chambers; and
a constricting element in the cylindrical member downstream from the at least one opening, wherein the constricting element reduces the sectional area of the cylindrical member. - View Dependent Claims (19)
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Specification