• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    An inflatable member is inflated by compressed gas flowing through the locking device and a hollow tubular tongue of a seat belt anchor. The inflatable part is kept in an uninflated state in a split two-layer belt. The locking device is rotatably secured to a conduit which receives compressed inflation gas from a cylinder provided inside a diffuser.
    公开号:SE1150030A1
    申请号:SE1150030
    申请日:2009-06-19
    公开日:2011-01-19
    发明作者:Dean M Jaradi；Srinivasan Sundararajan；Edward Joseph Desmet；Rudi Grzic；David R Arnold
    申请人:Ford Global Tech Llc；
    IPC主号:
    专利说明:

    15 20 25 30 is protected by an airbag mounted in the instrument panel or in the steering wheel.
    However, the large volume to be filled in this area requires the use of a larger airbag which takes more time to inflate.
    Seat belt systems with shoulder straps provide extra assurance that the front torso is protected in the event of a collision. Previously known inflatable knee and shoulder belts had belt coupling devices that required space for inflatable gas tubes, generally large and bulky hoses and brackets. In some prior art systems, hot gas sources using hot pyrotechnic inflation technology were required which required the inflator to be remotely located relative to the vehicle passengers. Such inflators are generally mounted in the vehicle structure to avoid contact with the hot inflator. Prior art inflatable seat belt systems in some cases had inflation gas sources mounted in the vehicle frame or column structure that required extended tubes, or conduits, to the seat belt structure.
    These and other problems encountered with prior art inflatable seat belt systems are addressed by the applicant's invention as summarized below.
    SUMMARY OF THE INVENTION An inflatable seat belt system includes a buckle and a tongue that are secured together to fasten the seat belt and also cooperate to define a path through which inflation gas is supplied to an inflatable member secured to the seat belt. Gas flows through the buckle and tongue. The part of the buckle that receives the seat belt tongue can also act as an ejector to eject the seat belt when the seat belt is provided between the buckle and the tongue. locking device is disengaged. A sealing coupling is A pair of sealing surfaces are provided at the contact surface. A spring biases a first tubular member provided by the buckle into contact with a second tubular member provided by the tongue of the seat belt anchor.
    According to another aspect of the invention, a cold source of compressed gas, or a cylinder, is secured to the buckle via a rotatable coupling which allows the buckle to rotate relative to the inflation gas cylinder.
    The buckle can be adapted to be rotated around the line and at the same time maintain an adequate liquid seal with the line that connects the cold inflation gas source to the seat belt buckle. By improving the rotatability of the part with the buckle of the seat belt system, the flexibility of the system is improved and the buckle can be oriented for conventional locking.
    According to another aspect of the invention, the inflator may include a tube terminated in a diffuser within a cavity defined in the buckle. As an alternative to providing a cold inflation gas cylinder mounted to the buckle, a remote inflatable gas source can be provided which is connected to the seat belt buckle via a pipe or conduit.
    According to another aspect of the invention, a special seat belt is woven to provide a flat seat belt structure with an inflatable portion of layers in the seat belt. the inflatable part is sewn to the seat belt at different places so that one end is sewn to the belt at the corners to define an inlet. A door is provided from the tongue by the seat belt anchorage to the airbag inside the belt. The special seat belt includes at least one breakable seam located between two Both ends of the one that is broken when the inflatable part is inflated. advantages of the seat belt system described by the applicants will be understood These and other objects and inflatable better with respect to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a perspective view of a vehicle seat that includes a seat belt harness with an inflatable member located in the shoulder belt; Figure 2 is a fragmentary elevational view of a seat belt harness and belt anchorage with an inflatable member located within the shoulder belt; Figure 3 is an external perspective view of a locking device with the belt anchor inserted and a compressed gas cylinder and the diffuser separated from the locking device; Figure 4 is an internal perspective view of a locking device with the belt anchor inserted and a compressed gas cylinder and diffuser separated from the locking device; Figure 5 is an exploded view of the locking device and belt anchor; Figure 6A is a central longitudinal cross-sectional view of the barrier device showing an integrated ejector tube; and Figure 6B is a central longitudinal cross-sectional view of the locking device showing an ejector tube of several parts.
    DESCRIPTION OF EMBODIMENTS Referring to Figure 1, a seat belt seat belt is shown in its locked position extending over a vehicle seat 12. The seat belt seat belt 10 includes a knee belt 14 and an inflatable member 16, or an airbag, in its uninflated shoulder belt inside the knee belt 18. 14 and the shoulder belt 18 are connected to retractors (not shown) which roll back the belts when not in use which is a well known technique. A locking device 20 is secured to the seat 12 and the seat belt harness 10 is secured to the locking device 20 via a belt anchor 22. An inflator 26 is shown which is connected to the locking device 20. The inflator 26 may be a cold inflator having compressed gas in a cylinder, as shown a pyrotechnic inflator, a hybrid inflator, or the like.
    Referring to Figure 2, the seat belt harness 10 and belt anchor 22 are shown in more detail. The knee belt 14 and the shoulder belt 18 are secured to the belt anchor 22. The belt anchor 22 includes a tongue 28 which is received by the locking device 20. A loop 30 is secured by soldering or by joining technique. The knee belt 14 and the shoulder belt 18 are secured to the loop 30. The tongue 28 includes a tubular body 32. A pair of welds to the tongue 28, other locking openings 34 are provided in ends extending from the tubular body 32 on opposite sides of the tubular body. the body 32. An inlet pipe 38 of the inflatable member 16 is connected to the tubular body 32. As will be described in more detail below, compressed gas flows through the tubular body 32 to the inlet pipe 38 when a collision is detected. The inflatable member 16 is located in a hollow, or split, two-layer belt 42. The split two-layer belt 42 is contiguous with a non-split two-layer belt at its opposite ends. the inlet pipe 38 is secured to the hollow belt 42 by folding over the edges 39 which are then sewn onto the belt 42. The edges 39 secure one end of the inflatable part to the belt 42. The inlet pipe 38 is placed between the edges 39, but is not attached to the belt 42 so that it remains open. The tube 38 is secured around one end of the tubular body with a clamp 41.
    Referring to Figures 3 and 4, the locking device 20 and the belt anchor 22 are shown with an inflator 26 and its compressed gas cylinder separated from the locking device. Inflator 26 conducts compressed gas through a conduit 48 in the event of a collision. A container 50, also referred to herein as a diffuser, pours the inflator 26 and is connected to manifold 54 with an opening 52 which receives the conduit 48. The enclosure 54 conveys the 48. The locking device includes an enclosure or includes an enclosure or diffuser seal 53 adjacent against a ring 55 secured to or formed around the conduit 48 to prevent gas from leaving the housing 54 through the opening 52. A fastener 56 is mounted in a threaded inner diameter 58 of the conduit 48 to secure the conduit 48 within the housing 54. A plurality of gas outlet ports 60 are provided in the conduit 48 opening into the housing 54 and removing gas into a cavity defined by the housing 54.
    Referring to Figures 5, 6A and 6B, the locking device 20 and belt anchor 22 are shown in Figure 5 in an exploded view and in Figures 6A and 6B a cross section of the belt anchor 22 generally includes the tongue 28 which is adapted to illustrate the locking device 20 in assembled condition. received inside the locking device 20. the loop 30 is connected to the sides of the tubular body 32 as shown in Figure 2 by soldering, welding, or the like. When the loop 30 is connected to the tubular body 32, barrier openings 34 are defined on opposite sides of the tubular body 32 and side flanges 36 extending from the loop 30 to the sides of the tubular body 32.
    The belt anchor 22 may include an assembled plastic seal 40 located at or near the distal end of the tubular body. The end of the tongue 28 may be bevelled to bring the seal into contact with the ejector tube. The seal prevents liquid and debris from entering the tubular body 32.
    The seal 40 can be mounted on the lower edge 41 of the tubular body 32 or placed inside the tubular body to form the sealing surface. Alternatively, the seal 40 may be made in one piece from the metal forming the mouth or lower edge 41 of the tubular body 32. In another alternative, the seal 40 may be assembled to or secured within the lower edge. The seal can be formed of a plastic sealing material. The locking device 20 includes an ejector spring 62 located within an ejector tube 64. The ejector spring 62 is preferably rectangular in shape and fits within the ejector tube 64. An ejector seal 66 is provided on the end of the ejector tube 64 opposite the housing 54 to prevent liquid and debris from entering it. Alternatively, the seal 66 may be located inside the ejector tube. The ejector seal 66 is formed of the material at the opposite end of the ejector tube 64 from the manifold 54. The ejector seal 66 may also be provided as an insertion unit 67, shown in Figure 6B, secured to the end of the ejector tube 64. The insertion unit 67 may also have a beveled surface to facilitate alignment of the tubular body 32 relative to the ejector tube 64. When the seal 66 is broken, it forms two doors or parts 68 and 68a which are divided when the inflator 26 is activated. A debris screen can be replaced or used in conjunction with the ejector doors 68, 68a. Ejector door 68, 68a opens in a collision when the inflation gas is led from the manifold 54 through the ejector tube 64 and into the tubular body 32 of the belt anchor 22. A bolt 69, shown in Figure 6A, secures the doors 68, 68a to the ejector tube 64. A seal for a manifold 70 is received in a manifold opening 72 in the housing facing the ejector tube 64 to form a seal between the ejector tube 64 and the housing 54.
    The diffuser seal 53 of Figure 5 includes a first annular portion 74, and a second opposite annular portion 78 connected by an integrated spring 76 mounted within the housing 54.
    A lower frame 80 is secured to one side of the housing 54 and an upper frame 82 is secured to the opposite side of the housing 54. The lower frame 80 and the upper frame 82 form a passage 85 which receives the ejector tube 64 and the ejector spring 62. The ejector tube 64 slides inside the passage 85. Parts of the lower frame 80 and the upper frame 82 are located on opposite sides of the ejector tube 64. A release button 84 is provided to allow release of the belt anchor 22 from the locking device 20. The release button 84 has a release spring 86 which biases the release button 84 toward its extended position.
    A latch holder 88 includes a pair of arms 90 defining the holes 92.
    The holes 92 receive ears 94 formed on the lower frame 80 which hold the latch 88 against the lower frame 80 with a limited possibility of rotational movement. A pair of locking tabs 96 are provided on the opposite end of the latch holder 88 from the arms 90. The latch holder 88 also includes a plurality of angled projections 95 which are adapted to contact one or more of their sloping surfaces 97 on the button 84.
    The locking tabs 96 contact the locking openings 34 formed on the tongue 28 of the belt anchor 22. A locking leaf spring 98 biases the locking holder 88 toward its locked position. A Hall switch 100, or other type of switch, is mounted to the latch 88 to provide a switch to indicate whether the belt anchor 22 is securely secured within the latch 20 or not. A magnet 69 can be held by the ejector door 68 which operatively contacts the Hall circuit breaker.
    An upper housing 102 and lower housing 104 are assembled together to enclose the locking device 20. The spring 98, the upper frame 82, the housing 54 and the lower frame 80 are secured together by a plurality of rivets 106.
    An articulated cover hatch 108 is shown in Figures 5 and 6A. The cover hatch 108 is spring biased by a pair of springs 110. The cover hatch 108 shown in Figure 6A blocks the space formed between the frame 80 and the button 84. When the tongue is inserted into the locking device, or buckle, the tubular body 32 pushes the cover hatch 108 inward. In operation, when a person is sitting in the vehicle seat 12, the seat belt belt 10 must be secured by inserting the belt anchor 22 into the locking device 20. The locking device 20 is mounted to the seat 12 so that it is rotatable relative to the cable 48. In this position , the knee belt 14 extends over the knees of the passenger and the shoulder belt 18 extends diagonally across a crash sensor, such as accelerometers mounted at different locations on the torso of the passenger. collision, input signals from the vehicle will signal a control unit to activate the inflator 26.
    When the inflator is triggered, inflation gas flows into the container 50 through the diffuser 46 and then into the conduit 48. The compressed gas is then passed through the chute 76 into the diffuser seal 53 and into the housing 54, or manifold. The inflation gas rapidly fills manifold 54 and is passed through manifold outlet 72 into ejector tube 64. The manifold seal 70 and ejector seal 66 seal opposite ends of ejector tube 64 to limit the loss of compressed gas. The upper diffuser seal 78, the lower frame 80, and the upper frame 82 surround the housing 54 to retain the inflation gas. The belt anchor 22 is received in the locking device 20 with locking tabs 96 received in the locking openings 34 formed in the side ends 36 of the tongue 28. As previously described, the locking openings 34 are provided on opposite sides of the tubular body 32. The inflation gas flows from the ejector tube 64 into the tubular tube 64. the body 32 of the belt anchor 22. From the tubular body 32, the inflation gas flows into the inlet pipe 38 to inflate the inflatable member 16. When inflation gas enters the inflatable member 16, the inflatable member 16 divides the split two-layer belt 42. The inflatable the part 16 is inflated and expands to provide a protective airbag to the seat passenger. A seal must be established between the ejector tube 64 and the tubular body 32. The seal is partially established by the ejector spring 62 biasing the ejector tube 64 and the ejector seal 66 into contact with the seal 40 formed on the tubular body. the body 32 of the belt anchor 22.
    In addition to the biasing force applied by the ejector spring 62, the force from the inflation gas also forces the ejector tube 64 outward due to the pressure from the gas applied to the ejector seal and which includes the ejector door 68. The biasing force applied by the gas pressure can be increased by providing a throttle 112 in the vicinity. end of the tubular body 32. The throttle 112 in the ejector tube 64 results in an increased pressure building up within the housing 54. The pressure applied to the ejector tube 64 complements the biasing force from the ejector spring 62.
    Handling of the locking device 20 under normal conditions begins with the insertion of the tongue 28 of the belt anchor 22 into the locking device 20.
    The tubular body 32 of the tongue 28 is inserted between the lower cover on one side and the release button 84 and the upper cover 102 on the other side. The tubular body 32 contacts the ejector tube 64 axially with the hollow portions in contact with each other and with the seal 40 and the ejector seal 66 in contact with each other. When the tongue 28 is fully inserted, the locking tabs 96 from the latch holder 88 are received in the latch openings 34 formed in the side flanges 36 by the belt anchor 22. The spring 98 biases the latch holder 88 toward this latched position. The switch 100 can detect movement of the ejector tube 64 or the magnet 69 due to the presence of the tongue 28 and indicate to the vehicle control system that the seat belt harness 10 is properly phase secured.
    The seat belt harness manually releases the release button 84 against the biasing force from the release spring 86. 10 is released by depressing. The sloping surface 97 of the release button 84 contacts the projections 95 on the lock holder 88 which lifts the locking tabs 96 from the lock openings 64. with the tongue 28 to disengage the tongue 28 from the locking device 20. While embodiments of the invention have been illustrated and described, it is not intended that these embodiments illustrate and describe all possible forms of the invention. The terms used in the specification are rather descriptive words and are not limiting, and various changes may be made without departing from the meaning and scope of the invention. 10 15 20 25 30 12 PATENT CLAIMS 1. An inflatable seat belt system comprises: a shoulder belt portion and a knee belt portion, one or both of the shoulder belt portion or the knee belt portion of the seat belt sleeve having an inflatable portion contained within the sleeve; includes a tubular source of inflation gas; a clamping device that includes a locking mechanism; a seat belt anchor having a tongue that is selectively coupled to a condition where the seat belt anchor is secured to the buckle and, together with the latch mechanism in a latch, is disengaged in a disengaged condition in which the seat belt anchor can be removed from the buckle; the buckle has a first hollow tube defining a first gas flow path through which inflation gas is supplied through the buckle to the tongue from the source of the inflation gas, the first hollow tube having a first and a second end, the first end including a first sealing surface, and wherein the second the end receives the inflation gas from the source of the inflation gas; the tongue defines a second gas flow path through which the inflation gas flows from the first gas flow path to the inflatable member, the tongue including a hollow second tube having a first and a second end, the first end of the second tube including a second sealing surface forming a gas seal with the first end of the first hollow tube when the locking mechanism is in a locked condition, and wherein the second end of the second hollow tube is in communication with an inlet for the inflatable part; and a spring biasing the first end of the hollow tube into contact with the tongue when the locking mechanism is in the locked condition to hold the first sealing surface together with the second sealing surface. The system of claim 1 wherein the spring is operatively coupled to the first tube for projecting or pushing the tongue from the buckle when the locking mechanism is moved to the disengaged state. The system of claim 1 wherein the clamping device is secured to a mounting surface for rotation about an axis of rotation between defined posts. The system of claim 3 wherein the clamping device further comprises a housing defining a cavity and a conduit received in the cavity, where the conduit leads. the inflation gas to the first gas flow path, where the conduit is coaxial with the axis of rotation, wherein the housing receives the conduit and rotates around the conduit. The system of claim 1 wherein the tongue includes two latches on opposite sides of the second hollow tube, the latch mechanism contacting the two latches in the latched state and disengaging the latches in the disengaged state. A system according to claim 5, wherein the locking mechanism further includes two locking legs, each of which is surface relative to a clamping frame and through one of the locking openings of the tongue. The system of claim 6 wherein the clamping frame includes first and second frame members, the first and second frame members defining a tubular passage for receiving the second tube of the tongue and for guiding the second tube toward the first tube. A system according to claim 7 wherein, the first tube is fl superficial relative to the tubular passage. A system according to claim 7 wherein the first and second frame members each include sets of two opposite frame openings and wherein each locking leg in the locked position is first movable through a first frame opening, wherein a locking opening of the tongue and through a second frame opening. The system of claim 6 wherein the locking mechanism includes a first ramp portion adapted to be coupled to a second ramp portion of a movable button, the button being biased away from the first ramp portion by a button spring, the button being movable from a first position to a second position toward the bias from the button spring, when the button has been moved to the second position contacts the first ramp to cause the locking legs to move out of the locking openings in the tongue so that the tongue is disengaged. A system according to claim 1 which includes a locking mechanism spring for biasing the locking mechanism towards a locked position. The system of claim 1 wherein the first sealing surface has a first shape and the second sealing surface has a second shape that complements the first shape. The system of claim 1, which includes a first particulate filter that blocks debris from passing through the first tube. The system of claim 13, which includes a second particulate filter that blocks debris from passing through the second tube. The system of claim 14 wherein the first and second particle filters are located in the vicinity of the first and second sealing surfaces. The system of claim 1, further comprising a door hinged to the clamping device and biased by at least one spring 10 to cover an area of the clamping device through which the tongue is inserted into the buckle. An inflatable seat belt system comprising: a seat belt including a tubular sleeve in which an inflatable member is located; a source of inflation gas; a buckle including a latch mechanism, the buckle having a manifold defining a fenced cavity, a conduit being received in the cavity and defining a axis of rotation, wherein the housing receives the conduit and rotates about the axis of rotation, wherein the conduit, manifold and the first hollow tube define a gas flow path through which the inflation gas is supplied via the span from the source of the inflation gas; and a seat belt anchor having a tongue selectively contacted by the latch mechanism in a latched condition in which the seat belt is secured to the buckle and is disengaged in a disengaged condition in which the latch, the tongue defining a second gas flow path, the seat belt latch anchor first gas des path of fate to the inlet of the inflatable part. The inflatable seat belt system of claim 17 further comprising: a second hollow tube having a first end and a second end, the first end of the second hollow tube contacting the first hollow tube and the second end of the second hollow tube being opened into the inlet of the inflatable part; wherein the first hollow tube includes a first end that receives the inflation gas from the cavity and a second end that communicates with the first end of the second hollow tube: a first seal provided on the second end of the first hollow tube; A second seal provided on the first end of the second tube to form a seal with the first seal; and a spring biasing the other end of the first hollow tube into contact with the second seal when the locking mechanism is in the locked condition to hold the first and second seals together. The inflatable seat belt system of claim 18 wherein the second end of the first hollow tube is movable relative to the first end of the second hollow tube, wherein the first hollow tube is provided with a restriction located in the first gas flow path, and wherein when the inflation gas fl flows through the first gas fl path of fate, the first hollow tube is driven towards the second hollow tube and thereby facilitates the establishment of a seal between the first and second seals. An inflatable seat belt system comprising: an inflatable gas source; a buckle including a locking mechanism defining a first gas flow path through which the inflation gas is supplied via the buckle from the source of the inflation gas; an anchor having a tongue that is selectively in contact with the locking mechanism in a locked condition where the anchor is secured to the buckle and disengaged in a disengaged condition where the anchor can be removed from the buckle device, the tongue defining a second gas flow path within the tongue; and a seat belt including a tubular sleeve in which an inflatable member is located, the inflatable member being attached to the seat belt at a first end and the inflatable member being attached to the seat belt at a second end at a location closer to the tongue than the first end , where the inflatable member has an inlet pipe which receives the inflation gas flowing from the second gas flow path to the inlet of the inflatable member. The inflatable seat belt system of claim 20 wherein the second end of the inflatable member further comprises a first corner portion and a second corner portion which are folded over and sewn to the seat belt while the inlet tube is located between the first and second corners in an area not attached to seat belt.
    权利要求:
    Claims (1)
    [1]
    A inflatable seat belt system comprises: a shoulder belt member and a knee belt member, one or both of the shoulder belt members or the knee belt member includes a tubular seat belt sleeve having an inflatable member contained within the sleeve; a source of inflation gas; a clamping device that includes a locking mechanism; a seat belt anchor having a tongue which is selectively coupled to the locking mechanism in a locked condition where the seat belt anchor is secured to the clamping device and disengaged in a disengaged condition in which the seat belt anchor can be removed from the clamping device; the buckle has a first hollow tube defining a first gas path through which inflation gas is supplied through the buckle to the tongue from the source of the inflation gas, the first hollow tube having a first and a second end, the first end including a first sealing surface, the second end receives the inflation gas from the source of the inflation gas; the tongue is a tubular body defining a second gas path through which the inflation gas flows from the first gas flow path to the inflatable member, the tongue including a hollow second tube having a first and a second end, the first end of the second tube including a second sealing surface forming a gas seal with the first end of the first hollow tube when the locking mechanism is in a locked condition, and where the other end of the second hollow tube is connected to an inlet of the inflatable member; and a spring biasing the first end of the hollow tube into contact with the tongue when the locking mechanism is in the locked condition to hold the first sealing surface together with the second sealing surface. The system of claim 1 wherein the spring is operatively coupled to the first tube to eject or push the tongue out of the buckle when the locking mechanism is moved to the disengaged state. System according to claim 1, wherein the clamping device is secured to a mounting surface for rotation about an axis of rotation between defined positions. The system of claim 3 wherein the clamping device further comprises a housing defining a cavity and a conduit received in the cavity, the conduit directing the inflation gas to the first gas flow path, the conduit being coaxial with the axis of rotation, the casing receiving the conduit and rotating about the conduit. The system of claim 1 wherein the tongue includes two latches on opposite sides of the second hollow tube, the latch mechanism contacts the two latches in the latched condition and disengages the latches in the disengaged condition. A system according to claim 5, wherein the locking mechanism further includes two locking legs, each of which is movable relative to a clamping frame and through one of the locking openings of the tongue. The system of claim 6 wherein the clamping frame includes first and second frame members, the first and second frame members defining a tubular passage for receiving the second tube of the tongue and for guiding the second tube toward the first tube. A system according to claim 7 wherein, the first tube is fl superficial relative to the tubular passage. The system of claim 7 wherein the first and second frame members each include sets of two opposite frame openings and wherein each locking leg in the read position is first movable through a first frame opening, wherein a locking opening of the tongue and through a second frame opening . The system of claim 6 wherein the locking mechanism includes a first ramp portion adapted to be coupled to a second ramp portion of a surface button, the button being biased away from the first ramp portion by a button spring, the button being surface from a first position to a second position against the bias from the button spring, when the button fl has been moved to the second position, the first ramp contacts to cause the locking legs to be moved out of the locking openings in the tongue so that the tongue is disengaged. A system according to claim 1 which includes a locking mechanism spring for biasing the locking mechanism towards a read position. The system of claim 1 wherein the first sealing surface has a first shape and the second sealing surface has a second shape that complements the first shape. The system of claim 1, which includes a first particulate filter that blocks debris from passing through the first tube. The system of claim 13, which includes a second particulate filter that blocks debris from passing through the second tube. The system of claim 14 wherein the first and second particle filters are located in the vicinity of the first and second sealing surfaces. The system of claim 1 further comprising a door hinged to the clamping device and biased by at least one spring to cover an area of the clamping device through which the tongue is inserted into the buckle. An inflatable seat belt system comprising: a seat belt including a tubular sleeve in which an inflatable member is located; a source of inflation gas; a buckle including a latch mechanism, the buckle having a manifold defining a fenced cavity, a conduit being received in the cavity and defining an axis of rotation, wherein the housing receives the conduit and rotates about the axis of rotation, wherein the conduit, manifold and the first hollow tube define a gas fl path of fate through which the inflation gas is supplied via the span from the source of the inflation gas; and a seat belt anchor having a tongue selectively contacted by the locking mechanism in a locked condition in which the seat belt is secured to the buckle and is disengaged in a disengaged condition in which the seat belt anchor can be removed from the buckle, the tongue being a gaseous which the inflation gas flows from the first gas flow path to the inlet of the inflatable member. The inflatable seat belt system of claim 17 further comprising: a second hollow tube having a first end and a second end, the first end of the second hollow tube contacting the first hollow tube and the second end of the second hollow tube being opened into the inlet of the inflatable member; Wherein the first hollow tube includes a first end that receives the inflation gas from the cavity and a second end that communicates with the first end of the second hollow tube: a first seal provided on the second end thereof. first hollow tube; a second seal provided on the first end of the second tube to form a seal with the first seal; and a spring biasing the other end of the first hollow tube into contact with the second seal when the locking mechanism is in the locked condition to hold the first and second seals together. The inflatable seat belt system of claim 18 wherein the second end of the first hollow tube is movable relative to the first end of the second hollow tube, wherein the first hollow tube is provided with a choke located in the first gas flow path, and wherein when the inflation gas flows through the first gas flow path, the first hollow tube is driven towards the second hollow tube, thereby facilitating the establishment of a seal between the first and second seals. An inflatable seat belt system comprising: an inflatable gas source; a buckle including a latch mechanism defining a first gas flow path through which the inflation gas is supplied via the buckle from the source of the inflation gas; an anchor having a tongue that is selectively in contact with the locking mechanism in a locked condition where the anchor is secured to the buckle and disengaged in a disengaged condition so the anchor can be removed from the buckle device, the tongue defining a second gas flow path within the tongue; and a seat belt including a tubular sleeve in which an inflatable member is located, the inflatable member being attached to the seat belt at a first end and the inflatable member being attached to the seat belt at a second end at a location closer the tongue than the first end, where the inflatable member has an inlet pipe which receives the inflation gas flowing from the second gas flow path to the inlet of the inflatable member. The inflatable seat belt system of claim 20 wherein the second end of the inflatable member further comprises a first corner portion and a second corner portion which are folded over and sewn to the seat belt while the inlet tube is located between the first and second corners in an area not attached to the seat belt.
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    GB2473153A|2011-03-02|
    CN102066159A|2011-05-18|
    WO2009155534A1|2009-12-23|
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    法律状态:
    2012-10-30| NAV| Patent application has lapsed|
    优先权:
    申请号 | 申请日 | 专利标题
    US7452608P| true| 2008-06-20|2008-06-20|
    PCT/US2009/047986|WO2009155534A1|2008-06-20|2009-06-19|Inflatable seat belt system|
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