Seatbelt system
First Claim
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1. A seatbelt system comprising:
- (a) an inner webbing;
(b) an outer webbing whose opposite ends are secured to one end of said inner webbing;
(c) an emergency locking retractor for winding up the other end of said inner webbing by its biasing force and preventing said inner webbing from being wound off in an emergency of the vehicle, said retractor being secured to the substantially central portion of the vehicle; and
(d) a pair of slip anchors provided at the upper and lower portion of a vehicle door for turning back the intermediate portions of said outer webbing, the portion between one of the slip anchors and one end of the inner webbing constituting a waist restraining portion for an occupant and another portion between the other of the slip anchors and one end of the inner webbing constituting a shoulder restraining portion for the occupant;
whereby the vehicle is opened or closed so as to automatically fasten the webbings to the occupant.
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Abstract
A seatbelt system wherein the intermediate portions of an outer webbing for restraining an occupant are turned back at slip anchors provided at the upper and lower portions of a vehicle door, whereby, in the normal running condition of the vehicle, relative movement between the webbing and the slip anchors allows the occupant to have high freedom in moving, and, in an emergency of the vehicle, when the occupant is moved by an inertial force in the direction of a collision, relative movement between the webbing and the slip anchors is prevented to restrain the occupant, thus preventing the upper body of the occupant from being thrown out in the direction of the collision.
5 Citations
6 Claims
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1. A seatbelt system comprising:
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(a) an inner webbing; (b) an outer webbing whose opposite ends are secured to one end of said inner webbing; (c) an emergency locking retractor for winding up the other end of said inner webbing by its biasing force and preventing said inner webbing from being wound off in an emergency of the vehicle, said retractor being secured to the substantially central portion of the vehicle; and (d) a pair of slip anchors provided at the upper and lower portion of a vehicle door for turning back the intermediate portions of said outer webbing, the portion between one of the slip anchors and one end of the inner webbing constituting a waist restraining portion for an occupant and another portion between the other of the slip anchors and one end of the inner webbing constituting a shoulder restraining portion for the occupant;
whereby the vehicle is opened or closed so as to automatically fasten the webbings to the occupant. - View Dependent Claims (2, 3, 4)
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5. A three-point type seatbelt system comprision a lap inner webbing, a lap outer webbing and a shoulder webbing, wherein:
- intermediate portions of said lap outer webbing and shoulder webbing are turned back at slip anchors provided at the upper and lower portions of the vehicle door, respectively;
thereafter, ends of said webbings are connected together; and
, in the normal running condition of the vehicle, said both webbings are made slidable with the slip anchors, and, in an emergency of the vehicle, said sliding movement of the webbing is prevented due to frictional force between the webbings and the slip anchors.
- intermediate portions of said lap outer webbing and shoulder webbing are turned back at slip anchors provided at the upper and lower portions of the vehicle door, respectively;
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6. A seatbelt system comprising:
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(a) a webbing for restraining an occupant; (b) an emergency locking retractor secured to the substantially central portion of the vehicle for winding up one end of said webbing and preventing said webbing from being wound off in an emergency; (c) a first slip anchor provided at the lower portion of the door for turning back the intermediate portion of said webbing, said slip anchor allowing the webbing to move in the longitudinal direction in the normal running condition of the vehicle and preventing the webbing from moving in the condition where tension of the webbing is increased; and (d) a second slip anchor provided at the upper portion of the door for turning back the webbing which has been turned back at said first slip anchor, said second slip anchor allowing the webbing to move in the longitudinal direction in the normal running condition of the vehicle and preventing the webbing from such moving as above in the condition where tension of the webbing is increased, and the forward end of the webbing turned back at the second slip anchor being engaged with the intermediate portion of the webbing between the first slip anchor and the retractor;
whereby, in the normal running condition of the vehicle, the webbing slides on the slip anchors to make the driving posture changeable, and, in an emergency, the occupant is slightly moved in the direction of a collision, and thereupon, relative movement between the webbing and the slip anchors is prevented to restrain the occupant, thus preventing the head of the occupant from being thrown out in the direction of the collision.
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Specification