Safety belt tensioner for motor vehicles
First Claim
1. Safety belt tensioner for motor vehicles which can be mounted on a vehicle chassis (12), the tensioner comprising an elongate drive device (11) which is to be arranged substantially horizontally in the motor vehicle, a flexible draw element (13) which is displaceable in its longitudinal direction by the drive device (11) and which is guided upwardly from the drive device (11) via deflection member (14), which is secured to the vehicle chassis (12), to a belt lock part (15) which cooperates with a counter-piece (17) arranged at the end of a three-point belt or of a lap belt (16) and which is mounted there so as to transmit a tensile force, characterised in that:
- the deflection member (14) is simultaneously designed as a mounting element which secures the drive device (11) to the vehicle chassis (12), and is directly and firmly connectable to the vehicle chassis (12);
the deflection member has a bolt or sleeve section (14'"'"') mountable to the vehicle chassis (12) and a deflection section (14"); and
the deflection section (14") has a round peripheral surface which is dimensionally matched to the draw element (13) and which projects radially outwardly beyond the bolt or sleeve section (14'"'"') to form ring step (14'"'"'") between the bolt or sleeve section and the deflection section; and
a projection (20) of the drive device (11) having a through bore (19) through which the bolt or sleeve section can be inserted with the ring step abutting and pressing against the projection.
1 Assignment
0 Petitions
Accused Products
Abstract
A safety belt tensioner for motor vehicles which is securable to the vehicle chassis (12) has an elongate drive device (11) which acts on a flexible draw element (13) displaceable in its longitudinal direction. The flexible draw element is guided from the guide device (11) via a deflection member (14) secured to the chassis to a belt lock part (15) and is attached there for the transmission of a tensile force. The deflection member (14) is simultaneously designed as the mounting element which secures the drive device (11) to the chassis (12).
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Citations
20 Claims
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1. Safety belt tensioner for motor vehicles which can be mounted on a vehicle chassis (12), the tensioner comprising an elongate drive device (11) which is to be arranged substantially horizontally in the motor vehicle, a flexible draw element (13) which is displaceable in its longitudinal direction by the drive device (11) and which is guided upwardly from the drive device (11) via deflection member (14), which is secured to the vehicle chassis (12), to a belt lock part (15) which cooperates with a counter-piece (17) arranged at the end of a three-point belt or of a lap belt (16) and which is mounted there so as to transmit a tensile force, characterised in that:
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the deflection member (14) is simultaneously designed as a mounting element which secures the drive device (11) to the vehicle chassis (12), and is directly and firmly connectable to the vehicle chassis (12); the deflection member has a bolt or sleeve section (14'"'"') mountable to the vehicle chassis (12) and a deflection section (14"); and the deflection section (14") has a round peripheral surface which is dimensionally matched to the draw element (13) and which projects radially outwardly beyond the bolt or sleeve section (14'"'"') to form ring step (14'"'"'") between the bolt or sleeve section and the deflection section; and a projection (20) of the drive device (11) having a through bore (19) through which the bolt or sleeve section can be inserted with the ring step abutting and pressing against the projection. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A tensioner for tensioning seat belts of motor vehicles with the belt tensioner capable of being mounted to the vehicle chassis, the tensioner comprising:
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an elongated drive device having a lengthwise axis and which is to be arranged substantially horizontally in the motor vehicle; a deflection member secured to the vehicle chassis adjacent one end of the drive device; a flexible draw element extending from the one end of the drive device for being pulled and exerting a tensioning force on the seat belt, the flexible draw element being guided upwardly from the drive device by the deflection member; and a deflection element which is arranged to be operatively connected to the seat belt, the deflection element guiding a return part of the flexible draw element downwardly back towards the deflection member with a free end of the flexible draw element being secured to the drive device. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. Safety belt tensioner for motor vehicles which can be mounted on a vehicle chassis (12), the tensioner comprising an elongate drive device (11) which is to be arranged substantially horizontally in the motor vehicle, a flexible draw element (13) which is displaceable in its longitudinal direction by the drive device (11) and which is guided upwardly from the drive device (11) via a deflection member (14) secured to the vehicle chassis (12) to a belt lock part (15) which cooperates with a counter-piece (17) arranged at the end of a three-point belt or of a lap belt (16) and which is mounted there so as to transmit a tensile force, characterised in that a projection (20) extends from the drive device (11) where the draw element (13) emerges up to and into the region of the deflection member (14) which is directly secured to the vehicle chassis (12);
- and in that the projection (20) has an upwardly directed angled portion (21) at which the belt lock part (15) is elastically and resiliently retractably arranged relative to the angle portion (21) via a spring cuff (22).
- View Dependent Claims (16, 17, 18, 19)
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20. Safety belt tensioner for motor vehicles which can be mounted on a vehicle chassis (12), the tensioner comprising an elongate drive device (11) which is to be arranged substantially horizontally in the motor vehicle, a flexible draw element (13) which is displaceable in its longitudinal direction by the drive device (11) and which is guided upwardly from the drive device (11) via a deflection member (14) secured to the vehicle chassis (12) to a belt lock part (15) which cooperates with a counter-piece (17) arranged at the end of a three-point belt or of a lap belt (16) and which is mounted there so as to transmit a tensile force, characterised in that the deflection member (14) is simultaneously designed as a mounting element which secures the drive device (11) to the vehicle chassis (12), and is directly and firmly connectable to the vehicle chassis (12);
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further including securing means (40) between the drive device (11) and the vehicle chassis (12) at the end region of the drive device (11) remote from the deflection member (14), said securing means being configured to prevent rotation of the drive device (11) about the deflection member (14).
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Specification