EP0195268A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
A seat belt pre-tensioning device
Assignee: Autoliv Development AB
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Filing: 1986-02-20
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Granted: —
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Expires: 2006-02-20
Abstract
Abstract A seat belt pre-tensioning device is adapted to be mounted on a vehicle and includes a buckle (12) to receive a seat belt buckle. The device incorporates means (28, 50, 60) which are responsive to a predetermined deceleration of the vehicle and which move to permit spring-loaded means (23, 48) to apply a force to move the buckle (12) to apply a tension to the seat belt means.
Inventors
- 👤 Sture Roland Andersson
- 👤 Lars Yngve Haland
- 👤 Bengt Olof Johan Stellan Mörner
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-31 22:11
CPC Classifications
B; B60; B60R; B60R22/00; B60R22/18; B60R22/195; B60R22/1958
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
101 words
t. A vehicle seat belt pre-tensioning device comprising means (1,40) to mount the device in the vehicle, means (12) on the device to receive part of the seat belt, means (23,48) adapted to apply a force to move said seat belt receiving means to apply a tension to the seat belt and means (28, 50, 60) which normally prevent the force applying means from moving the seat belt receiving means, but which are responsive to a predetermined deceleration, to actuate said force applying means to permit the force applying means to apply their force to move the seat belt receiving means.
Claim 2
Independent Claim
79 words
A device according to claim I, whereih the seat belt receiving means (l2) is connected to a movable member (5, 41), said force apply means (23, 48) applying a force to the movable member, movement of the movable member being prevented by engagement of a part of the device with a stop (19, 50, 64), said deceleration responsive means being adapted to disengage said movable part of the device and said stop to permit movement of said movable member.
Claim 3
Independent Claim
19 words
A device according to claim I or 2, wherein said force applying means include a torsion bar (23, 48).
Claim 4
Dependent Claim
75 words
A device according to claim 3, wherein the torsion bar (23) is arranged to extend transversely of the vehicle, at least one end of the torsion bar being movable in the axial direction of the vehicle, said end of the torsion bar being connected to said movable part of the device so that a predetermined movement of said one end of the torsion bar disengages said part (30) of the device from said stop (19).
Claim 5
Dependent Claim
69 words
A device according to claim 4, wherein the part of the device is in the form of a control lever (28), part (30) of which engages the stop (19), the control lever being biassed torsionally by the torsion bar (28), so that when the control lever is disengaged from said stop the control lever will rotate, movement of the control lever causing movement of said seat belt receiving means.
Claim 6
Dependent Claim
55 words
A device according to claim 5, wherein the control lever (28) is connected to the said movable member (5) by means of a pin and slot connection (13, 29) which permits axial movement of the control lever relative to the movable member, but which transmits rotational movement of the control lever to the movable member.
Claim 7
Dependent Claim
55 words
A device according to claim 2, wherein the stop (50, 64) is formed on or constituted by an element (50, 60) which is adapted to move relative to the rest of the device, when the device is subject to a predetermined accelerational or decelerational force; thus disengaging the stop from said part of the device.
Claim 8
Dependent Claim
63 words
A device according to claim 7, wherein the element is a mass (50) which is retained in position with a seat (51) on the mass engaging the movable member (41) or a member associated therewith, the mass being movable, against a retaining bias applied thereto, to a position in whcih the seat (51) is disengaged from the movable member or member associated therewith.
Claim 9
Dependent Claim
55 words
A device according to claim 8, wherein said seat (51) on the mass (50) engages the movable member (41) in such a way that the movable member must move against the force applied thereto before the mass can be disengaged from the movable member, the movable member thus applying said retaining bias to the mass.
Claim 10
Dependent Claim
31 words
A device according to claim 7, wherein the stop (67) is formed on a pendulum member (60), the stop being engaged by a member (62) mounted on the movable member (41).
Claim 11
Dependent Claim
51 words
A device according to claim 10, wherein said member (62) mounted on the movable member (41) is pivotally (65) mounted thereon, and has means (63) to engage an abutment (64) connected to the means (40) for mounting the device in a vehicle, and has means (66) to engage said stop (67).
Claim 12
Independent Claim
36 words
A device according to any one of claims 2 to 11, wherein means (15, 43, 44) are provided for retaining the movable member in the position that it occupies after the force has been applied thereto.
References Cited (Backward Citations)
US4470117A
Cited
DE3304008A1
Cited
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