Occupant restraint system
First Claim
1. A tongue assembly for use in an occupant restraint system of a vehicle, the occupant restraint system also having a buckle mechanism and a webbing, comprising:
- a tongue member having an opening and configured to selectively engage the buckle mechanism of the occupant restraint system;
a body formed over a portion of the tongue member;
wherein the body includes a contact surface, a first wall, and a second wall opposing the first wall;
a cam provided between the first and second walls of the body, and configured to rotate about an axis of rotation between a first locking position and a second free position;
wherein the cam includes a cam surface; and
a biasing member configured to rotationally bias the cam;
wherein when the cam is positioned in the second free position the tongue assembly is free to slide along the length of the webbing of the occupant restraint system, and when the cam is positioned in the first locking position a portion of the webbing is clamped between the cam surface of the cam and the contact surface of the body thereby preventing the tongue assembly from sliding along the length of the webbing,wherein the first wall includes a first bore and the second wall includes a second bore opposing the first bore, anda fixed pin having a first end configured to engage the first bore such that the fixed pin is prohibited from rotating relative to the body, and a second end configured to receive a portion of the biasing member.
5 Assignments
0 Petitions
Accused Products
Abstract
A tongue assembly for use in an occupant restraint system also having a buckle mechanism and a webbing. The tongue assembly includes a tongue member configured to selectively engage the buckle mechanism, a body formed over a portion of the tongue member, a cam, and a biasing member configured to rotationally bias the cam. The body includes a contact surface. The cam includes a cam surface and is configured to rotate about an axis of rotation between a first locking position and a second free position. When the cam is positioned in the second free position the tongue assembly is free to slide along the length of the webbing, and when the cam is positioned in the first locking position a portion of the webbing is clamped between the cam surface and the contact surface thereby preventing the tongue assembly from sliding along the length of the webbing.
27 Citations
17 Claims
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1. A tongue assembly for use in an occupant restraint system of a vehicle, the occupant restraint system also having a buckle mechanism and a webbing, comprising:
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a tongue member having an opening and configured to selectively engage the buckle mechanism of the occupant restraint system; a body formed over a portion of the tongue member; wherein the body includes a contact surface, a first wall, and a second wall opposing the first wall; a cam provided between the first and second walls of the body, and configured to rotate about an axis of rotation between a first locking position and a second free position; wherein the cam includes a cam surface; and a biasing member configured to rotationally bias the cam; wherein when the cam is positioned in the second free position the tongue assembly is free to slide along the length of the webbing of the occupant restraint system, and when the cam is positioned in the first locking position a portion of the webbing is clamped between the cam surface of the cam and the contact surface of the body thereby preventing the tongue assembly from sliding along the length of the webbing, wherein the first wall includes a first bore and the second wall includes a second bore opposing the first bore, and a fixed pin having a first end configured to engage the first bore such that the fixed pin is prohibited from rotating relative to the body, and a second end configured to receive a portion of the biasing member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A cam for use within a tongue assembly of an occupant restraint system having a buckle mechanism and a webbing, the tongue assembly being configured to selectively engage the buckle mechanism of the occupant restraint system, and the tongue assembly being configured to selectively clamp the webbing thereby to prevent the tongue assembly from sliding along the length of the webbing, comprising:
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a cam surface for contacting the webbing to selectively clamp the webbing to the tongue assembly to prevent the tongue assembly from sliding along the length of the webbing; and an axis of rotation, about which the cam rotates relative to the tongue assembly in order to selectively clamp the webbing, wherein the cam surface of the cam is configured as an Archimedes spiral.
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13. An occupant restraint system configured to selectively restrain a seated occupant of a vehicle, comprising:
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a webbing having a first end connected to an anchor, and a second end; a buckle mechanism having an opening and a release; and a tongue assembly configured to selectively slide along the length of the webbing between the first and second ends of the webbing; wherein the tongue assembly includes a latch plate configured to pass through the opening of the buckle mechanism to selectively engage the buckle mechanism, thereby locking the tongue assembly to the buckle mechanism; wherein upon activation of the release of the buckle mechanism releases the latch plate thereby disengaging the tongue assembly from the buckle mechanism; wherein the tongue assembly also includes a cam configured to rotate about an axis of rotation to selectively clamp a portion of the webbing between the cam and the tongue assembly, thereby preventing the tongue assembly from sliding along the length of the webbing, wherein the tongue assembly includes a pivot pin configured to engage the cam, whereby the cam and pivot pin rotate together relative to the tongue assembly, wherein the tongue assembly also includes a body formed over a portion of the latch plate and having a first wall with a first bore and a second opposing wall with a second bore, whereby a portion of the pivot pin engages the second bore. - View Dependent Claims (14, 15, 16, 17)
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Specification