Abstract: In a compact vehicle in which a vehicular component engaged with an inflated and extended air bag is arranged in the inflated and extended range of the air bag that can constrain a rider on a seat provided to the rear of a body frame from a forward direction, even if there is the vehicular component engaged with the air bag in an inflated and extended state, space for the air bag to be fully inflated and extended is secured and in addition, the inflated and extended air bag is securely supported. A vehicular component can be turned between an inactuated position in which an air bag is folded and an actuated position in which the vehicular component is displaced from the inactuated position, being engaged with and supporting a part of the inflated and extended air bag and is supported by fixed supporting means.

Abstract: An airbag apparatus is provided in which constraint of a rider in case of front collision is achieved. In one form, an airbag apparatus to be mounted to a motorcycle includes an airbag which is deployed and inflated in case of front collision of a vehicle. The airbag forms a constraining surface for constraining a rider when deployed and inflated, and is configured to be deployed and inflated while extending the constraining surface along the direction connecting the abdominal portion and the chest portion of the rider when constraining the rider.

Abstract: To provide an air bag apparatus for a small size vehicle, wherein a seat for a driver is provided at a rear portion of a vehicle body and an instrument panel, which a driver on the seat can visually observe is provided at a front portion of the vehicle body. The air bag apparatus assures a wide range of inflation and expansion of an air bag and can be applied to a conventional small size vehicle without a significant design change. A plurality of air bags which can constrain a driver on a seat from a forward direction are connected to each other by a connection mechanism and are accommodated in a folded state in an instrument panel.

Abstract: An inflator unit provided on a main frame of a motorcycle is provided with an inflator case having an inflator stored therein. Gas generated by the inflator flows through the interior of the main frame and is supplied to the airbag. The inflator case includes the left and right case halves divided along the parting plane and joined with each other by two bolts and the internal space thereof narrows towards an exit opening in the funnel shape. The axis Li of the inflator is shifted to the side opposite from the exit opening with respect to the axis Lc of the inflator case. A main frame may be formed with an atmosphere communication hole for communicating the interior of the main frame with the atmosphere at the position near the inflator case so that the atmosphere is introduced through the atmosphere communication port into the interior of the main frame by the negative pressure generated when gas flows from the inflator to the airbag. Thus, a large-volume airbag can be deployed by a small-capacity inflator.

Abstract: To effectively restrain a rider on a seat provided at a rear portion of a vehicle body with an inflated air bag in a scooter type vehicle having a footrest for supporting the feet of the rider. An air bag that can be inflated so as to restrain a rider on a seat from the front side of the rider is accommodated in a folded condition inside a front end portion of the seat.

Abstract: To secure the capacity of an inflator for deploying an airbag even when the airbag unit is downsized due to a limitation with respect to the mounting space. An airbag unit is disposed at the front portion of a fuel tank of a motorcycle V. A pair of inflator units is disposed on the left side and the right side of the centerline L of the vehicle body in a symmetrical manner. The inflators stored in the respective inflator units are connected to the airbag unit via gas supply hoses. Accordingly, even when a space for storing an inflator having a sufficient capacity cannot be provided in the airbag unit, the airbag can reliably be deployed by merging a sufficient amount of gas supplied from the inflators of a plurality of inflator units without any problems.

Abstract: To suppress the transmission of vibrations from a vehicle body and an engine to an inflator in an air bag system. Rubber mounts are fitted to a retainer box for accommodating an air bag. A flange of an inflator is placed on the rubber mounts, and bolts are inserted through set plates for connecting the air bag to the inflator and through the flange. The bolts are further inserted through the rubber mounts and nuts are tightened to the bolts.

Abstract: In a compact vehicle including a pipe stem to be inserted into a head pipe wherein the pipe stem is rotatably supported by the head pipe located at the front end on a vehicle body frame. A front fork is provided for rotatably supporting a front wheel being to a top bridge and a bottom bridge secured at the upper and lower ends of the pipe stem. A steering handle is mounted on the top bridge. To simplify the configuration of the airbag and simplifying the connection between the inflator and the airbag is supported on the steering handle and the inflator for supplying gas for inflation and deployment is stored in the pipe stem.

Abstract: To effectively restrain a rider on a seat provided at a rear portion of a vehicle body with an inflated air bag in a scooter type vehicle having a footrest for supporting the feet of the rider. An air bag that can be inflated so as to restrain a rider on a seat from the front side of the rider is accommodated in a folded condition inside a front end portion of the seat.

Abstract: In a compact vehicle including a pipe stem to be inserted into a head pipe wherein the pipe stem is rotatably supported by the head pipe located at the front end on a vehicle body frame. A front fork is provided for rotatably supporting a front wheel being connected to a top bridge and a bottom bridge secured at the upper and lower ends of the pipe stem. A steering handle is mounted on the top bridge. To simplify the configuration of the airbag and simplifying the connection between the inflator and the airbag, the airbag is supported on the steering handle and the inflator for supplying gas for inflation and deployment is stored in the pipe stem.

Abstract: To enable the easy adjustment of the height of the upper end of a shoulder belt of webbing utilizing a shoulder guard provided to a strut provided on both right and left sides of a seat. An air belt system is provided with webbing in which a lap belt that cannot be inflated and a shoulder belt that can be inflated are connected to each other. A retractor is provided to one side of a seat for winding the end of the lap belt. A tongue is supported in an intermediate part of the webbing so that the tongue can slide relative thereto. A buckle is provided on the other side of the seat for connecting the tongue so that the tongue can be detached. An inflator is connected to the end of the shoulder belt for supplying high pressure gas to the shoulder belt. Right and left shoulder guards are respectively provided to the struts provided on both right and left sides of the seat so that the upper and lower positions can be adjusted.

Abstract: To provide an air bag apparatus for a small size vehicle, wherein a seat for a driver is provided at a rear portion of a vehicle body and an instrument panel, which a driver on the seat can visually observe is provided at a front portion of the vehicle body. The air bag apparatus assures a wide range of inflation and expansion of an air bag and can be applied to a conventional small size vehicle without a significant design change. A plurality of air bags which can constrain a driver on a seat from a forward direction are connected to each other by a connection mechanism and are accommodated in a folded state in an instrument panel.

Abstract: In a compact vehicle in which a vehicular component engaged with an inflated and extended air bag is arranged in the inflated and extended range of the air bag that can constrain a rider on a seat provided to the rear of a body frame from a forward direction, even if there is the vehicular component engaged with the air bag in an inflated and extended state, space for the air bag to be fully inflated and extended is secured and in addition, the inflated and extended air bag is securely supported. A vehicular component can be turned between an inactuated position in which an air bag is folded and an actuated position in which the vehicular component is displaced from the inactuated position, being engaged with and supporting a part of the inflated and extended air bag and is supported by fixed supporting means.

Abstract: To secure the capacity of an inflator for deploying an airbag even when the airbag unit is downsized due to a limitation with respect to the mounting space. An airbag unit is disposed at the front portion of a fuel tank of a motorcycle V. A pair of inflator units is disposed on the left side and the right side of the centerline L of the vehicle body in a symmetrical manner. The inflators stored in the respective inflator units are connected to the airbag unit via gas supply hoses. Accordingly, even when a space for storing an inflator having a sufficient capacity cannot be provided in the airbag unit, the airbag can reliably be deployed by merging a sufficient amount of gas supplied from the inflators of a plurality of inflator units without any problems.

Abstract: An inflator unit provided on a main frame of a motorcycle is provided with an inflator case having an inflator stored therein. Gas generated by the inflator flows through the interior of the main frame and is supplied to the airbag. The inflator case includes the left and right case halves divided along the parting plane and joined with each other by two bolts and the internal space thereof narrows towards an exit opening in the funnel shape. The axis Li of the inflator is shifted to the side opposite from the exit opening with respect to the axis Lc of the inflator case. A main frame may be formed with an atmosphere communication hole for communicating the interior of the main frame with the atmosphere at the position near the inflator case so that the atmosphere is introduced through the atmosphere communication port into the interior of the main frame by the negative pressure generated when gas flows from the inflator to the airbag. Thus, a large-volume airbag can be deployed by a small-capacity inflator.

Abstract: To enable the easy adjustment of the height of the upper end of a shoulder belt of webbing utilizing a shoulder guard provided to a strut provided on both right and left sides of a seat. An air belt system is provided with webbing in which a lap belt that cannot be inflated and a shoulder belt that can be inflated are connected to each other. A retractor is provided to one side of a seat for winding the end of the lap belt. A tongue is supported in an intermediate part of the webbing so that the tongue can slide relative thereto. A buckle is provided on the other side of the seat for connecting the tongue so that the tongue can be detached. An inflator is connected to the end of the shoulder belt for supplying high pressure gas to the shoulder belt. Right and left shoulder guards are respectively provided to the struts provided on both right and left sides of the seat so that the upper and lower positions can be adjusted.