Seat belt retractor assembly for an occupant restraint system, and method for mounting a seat belt retractor assembly of this type
A seat belt retractor and occupant restraint technology, applied in the direction of seat belts, belt retractors, electric components, etc.
Inactive Publication Date: 2019-06-14
TRW AUTOMOTIVE GMBH
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- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Since tensioning of the seat belt is usually only a purely precautionary measure, the seat belt is released and unwound again as soon as the hazardous situation no longer exists
Method used
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Embodiment Construction
[0041] figure 1 An assembled seat belt retractor assembly 10 for an occupant restraint system of a motor vehicle is shown prior to final application of the housing cover 12 .
[0042] The seat belt retractor assembly 10 includes an electric motor unit 14 for seat belt tensioning (the electric motor unit has a motor axis A), a transmission housing 16 (the transmission has a housing radially adjacent to the electric motor unit 14 body wall 18), an electrical control unit 20 (which has a wall 22 radially adjacent to the electric motor unit 14 and is connected to the transmission housing 16) and a housing cover 12 for covering the electric motor unit 14, wherein , the housing cover 12 is radially adjacent to the electrical control unit 20 and has axially protruding conical clamping lugs 24 which extend between the electric motor unit 14 and the housing wall 18 (see also Figure 14 ) and radially compress the electric motor unit 14 in the transmission housing 16 .
[0043] as in ...
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The invention relates to a seat belt retractor assembly (10) for an occupant restraint system of a motor vehicle, comprising: an electric motor unit (14) for seat belt tightening, having a motor axis(A) and extending in an axial direction from a drive end (30) for coupling to a transmission to an opposing connection end (32) for coupling to an electric control unit (20); a transmission housing (16) having a housing wall (18) radially adjoining the electric motor unit (14); an electric control unit (20) having a wall (22) radially adjoining the electric motor unit (14), and connected to the transmission housing (16); as well as a housing cover (12) for covering the connection end (32) of the electric motor unit (14), wherein the housing cover (12) radially adjoins the electric control unit(20) and has axially protruding, conical clamping extensions (24), which extend between the electric motor unit (14) and the housing wall (18) and radially brace the electric motor unit (14) in the transmission housing (16), and these in turn brace the electric control unit with the transmission housing.
Description
technical field [0001] The invention relates to a seat belt retractor assembly for an occupant restraint system of a motor vehicle, and a method for assembling such a seat belt retractor assembly, the seat belt retractor assembly having a reversible electric motor unit. Background technique [0002] Seat belt retractor assemblies with reversible electric seat belt tensioners in addition to the usual locking systems (which can respond vehicle sensitively or seat belt sensitively) are well known from the prior art . If the controller detects a threat of an accident, such a seat belt retractor assembly pretensions the seat belt if required. Since tensioning of the seat belt is usually only a purely preventive measure, the seat belt is released again and unwound as soon as the dangerous situation no longer exists. [0003] These belt retractor assemblies usually consist of many individual components and must permanently ensure high functional reliability for all conceivable a...
Claims
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IPC IPC(8): H02K5/22H02K5/04H02K7/116H02K11/30B60R22/195
CPCB60R22/46B60R2022/3402B60R2022/4473B60R2022/4666H02K5/04H02K5/225H02K7/116H02K11/30
Inventor W·霍尔贝因S·万纳
Owner TRW AUTOMOTIVE GMBH