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1. WO2006011923 - SEAT BELT RETRACTOR WITH ELECTRIC MOTOR

Publication Number WO/2006/011923
Publication Date 02.02.2006
International Application No. PCT/US2005/008564
International Filing Date 11.03.2005
IPC
B60R 22/44 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
22Safety belts or body harnesses in vehicles
34Belt retractors, e.g. reels
44with means for reducing belt tension during use under normal conditions
B60R 22/46 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
22Safety belts or body harnesses in vehicles
34Belt retractors, e.g. reels
46with means to tension the belt in an emergency
CPC
B60R 2022/4466
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
22Safety belts or body harnesses in vehicles
34Belt retractors, e.g. reels
44with means for reducing belt tension during use under normal conditions
4446using one spring and one additional retraction device in series
4466the additional retraction device being an electric actuator
B60R 2022/4666
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
22Safety belts or body harnesses in vehicles
34Belt retractors, e.g. reels
46Reels; with means to tension the belt in an emergency ; by forced winding up
4666characterised by electric actuators
B60R 2022/468
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
22Safety belts or body harnesses in vehicles
34Belt retractors, e.g. reels
46Reels; with means to tension the belt in an emergency ; by forced winding up
468characterised by clutching means between actuator and belt reel
B60R 22/44
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
22Safety belts or body harnesses in vehicles
34Belt retractors, e.g. reels
44with means for reducing belt tension during use under normal conditions
B60R 22/46
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
22Safety belts or body harnesses in vehicles
34Belt retractors, e.g. reels
46Reels; with means to tension the belt in an emergency ; by forced winding up
B60R 22/4628
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
22Safety belts or body harnesses in vehicles
34Belt retractors, e.g. reels
46Reels; with means to tension the belt in an emergency ; by forced winding up
4628characterised by fluid actuators, e.g. pyrotechnic gas generators
Applicants
  • KEY SAFETY SYSTEMS, INC. [US]/[US] (AllExceptUS)
  • SPECHT, Martin [DE]/[DE] (UsOnly)
  • SEER, Mark [DE]/[DE] (UsOnly)
  • HECKMAYR, Thomas [DE]/[DE] (UsOnly)
  • KILIAN, Thomas [DE]/[DE] (UsOnly)
Inventors
  • SPECHT, Martin
  • SEER, Mark
  • HECKMAYR, Thomas
  • KILIAN, Thomas
Agents
  • DRAYER, Lonnie, R.
Priority Data
20 2004 009949.724.06.2004DE
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) SEAT BELT RETRACTOR WITH ELECTRIC MOTOR
(FR) RÉTRACTEUR DE CEINTURE DE SÉCURITÉ AVEC MOTEUR ÉLECTRIQUE
Abstract
(EN) A retractor for a seat belt of a vehicle has a winding shaft (2) for winding up a seat belt (1). A motive spring (3) biases the winding shaft (2) in the winding direction of the seat belt. An electric motor (4) produces torque can be transmitted to the motive spring (3) to change the spring force. A switch coupling (5) transmits the torque of the electric motor to the winding shaft to wind up the seat belt (1). A gear (13) transmits the torque of the electric motor to the winding shaft (2) or the motive spring (3). The motive spring (3), the coupling (5) and the gear (13) are provided on one side of the seat belt retractor. The gear (13) comprises a drive wheel (11) which is rotatably mounted on a shaft (8) rotationally and coaxially connected to a winding shaft (2), and which is rotationally connected to an outer spring end (10) of the motive spring (3) by a rigid rotary connection (15). A first active surface (18) of the coupling (5) is movably mounted against a restoring force on a component (25) securely connected to the rigid rotary connection (15) and is able to rotate around the shaft (8). A second active surface (19) of the coupling (5) is rotationally connected to the shaft (8).
(FR) Le rétracteur de ceinture de sécurité selon l’invention d'un véhicule a un arbre d'enroulement (2) pour enrouler la ceinture de sécurité (1). Un ressort moteur (3) agit sur l'arbre d'enroulement (2) dans le sens de l'enroulement de la ceinture de sécurité. Un moteur électrique (4) produit un couple qui peut être transmis au ressort moteur (3) pour modifier la force du ressort. Un accouplement à interrupteur (5) transmet le couple du moteur électrique à l'arbre d'enroulement pour enrouler la ceinture de sécurité (1). Un engrenage (13) transmet le couple du moteur électrique à l'arbre d'enroulement (2) ou au ressort moteur (3). Le ressort moteur (3), l'accouplement (5) et l'engrenage (13) sont disposés sur un côté du rétracteur de ceinture de sécurité. L'engrenage (13) comprend une roue motrice (11) montée de façon à pouvoir tourner sur un arbre (8) relié en rotation à l'arbre d'enroulement (2) et coaxial à celui-ci et qui est reliée en rotation à l'extrémité de ressort extérieure (10) du ressort moteur (3) par un raccord rotatif rigide (15). Une première surface active (18) de l'accouplement (5) est montée de façon mobile contre une force de rappel sur un composant (25) solidement relié au raccord rotatif rigide (15) et est capable de tourner autour de l'arbre (8). Une seconde surface active (19) de l'accouplement (5) est reliée en rotation à l'arbre (8).
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