Abstract: When activated, an actuator causes a piston rod in a cylinder to move forwards so as to support a receiving member for receiving an object to be protected. A lock mechanism for restricting a backward movement of the piston rod includes a lock ring which is accommodated in an accommodating groove on a piston portion and a locking stepped portion on the cylinder side. The locking stepped portion includes a locking and restricting surface and an outer circumferential restricting surface.

Abstract: In a vehicle pop-up hood apparatus in which a rod is extended and a hood is pushed up by the operation of an actuator at a time of collision with a collision body, collision energy is absorbed with high efficiency when a collision load of a predetermined value or greater is input to an area near a hood pushed up position. Actuator (18) operates such that rod (20) moves in an axial direction toward a hood upper side, pushes up a rear edge side of hood rocker (12) and holds it at that position and, in that state, when a collision load of a predetermined value or greater acts from a hood upper side to near the pushed up position of the hood, push portion (54) slides along pushed up surface (38) of hinge arm (30) towards a vehicle rear side, and rod (20) is made to bend in conjunction therewith.

Abstract: An actuator AE1 includes a lock mechanism R1 configured to fill a gas G generated by operating a gas generator 35 at inside of a cylinder 22 and moving forward a piston 38 along with a support rod 40 for restricting a rearward movement of the support rod moved forward. The support rod 40 is arranged to be able to absorb a kinetic energy of a protection object person and capable of being plastically deformed when the protection object person is received by a receiving member after having been moved forward. A lock mechanism R1 is constituted by a diameter enlarging deformed portion 42 arranged at a piston and a locking stepped portion 24 capable of restricting the rearward movement of the piston.

Abstract: A pedestrian protection system is mounted in the front portion of a vehicle, and includes a controller, a forward movement holding mechanism controlled in actuation by the controller, and a contact body that a pedestrian can contact. The controller, when having predicted a collision of a pedestrian with the vehicle based on a signal from a collision predicting sensor, actuates the forward movement holding mechanism to cause a forward movement of the contact body, and based on a signal from a turn sensor when the forward movement holding mechanism carries out an upward rotation or a downward rotation at the time of contact of the forwardly moved contact body with a pedestrian, controls actuation of the restraint body so as to correspond to a pedestrian moving to a front upper side of the vehicle and a pedestrian moving to a front lower side of the vehicle, respectively.

Abstract: The present invention provides a hood impact absorbing apparatus capable of further mitigating an impact that a collision body receives from a hood than ever, wherein a push-up rod pushes up the rear end of a hood at the time of a collision of a vehicle, and when a collision body is battered against the top surface of the hood in this state, the rear end of the hood descends and the distal end of the push-up rod slidingly contacts and moves a rear-side flat portion and an arm intermediate curved portion in the rear end of the hood, and herein, a slide contact angle (?) in the arm intermediate curved portion is larger than a slide contact angle (?) in the rear end of the rear-side flat portion, thereby, during a process in which the rear end of the hood descends, peaks at which an absorbing amount of impact energy becomes large can be provided at least twice, and as a result, the impact can be mitigated further than ever.

Abstract: An air bag system M1 is installed in a vehicle having front side doors 13 which are installed adjacent to the rear of front pillars 1 and which each have an outside rearview mirror 27. An air bag 42 includes a pillar covering portion 47 which is disposed to cover a front surface 1a of the front pillar 1 when it completes its inflation and a fitting cell portion 50 which is installed below the pillar covering portion 47 and which is disposed so that when it completes its inflation, a rear end side portion thereof fits in a space defined between the outside rearview mirror 27 and a lateral side of the vehicle on an upper surface side of the outside rearview mirror. The fitting cell portion 50 is connected to a lower edge side of the pillar covering portion 47 over substantially the whole area in a front-rear direction thereof.

Abstract: An air bag system M includes an air bag 40 which can cover a front surface 1a side of a front pillar 1 of a vehicle V, an inflator 55, an air bag cover 65, a case 61 which stores and holds the air bag and the inflator and holds the air bag cover, and bolts 59 which are provided so as to extend from the case for mounting the air bag system on to an installation portion of a front side door 11. A portion of an outer reinforcement 19 which reinforces an outer panel 18 of the front side door is configured as a mounting portion 20 of the front side door where the bolts are attached, and the air bag system M is installed at a portion of the front side door which lies in proximity to a belt line 14 on a side facing a vehicle's outer side by the bolts 59 being attached to the mounting portion 20 on the outer reinforcement.

Abstract: The present invention provides a hood impact absorbing apparatus capable of further mitigating an impact that a collision body receives from a hood than ever, wherein a push-up rod pushes up the rear end of a hood at the time of a collision of a vehicle, and when a collision body is battered against the top surface of the hood in this state, the rear end of the hood descends and the distal end of the push-up rod slidingly contacts and moves a rear-side flat portion and an arm intermediate curved portion in the rear end of the hood, and herein, a slide contact angle (?) in the arm intermediate curved portion is larger than a slide contact angle (?) in the rear end of the rear-side flat portion, thereby, during a process in which the rear end of the hood descends, peaks at which an absorbing amount of impact energy becomes large can be provided at least twice, and as a result, the impact can be mitigated further than ever.

Abstract: When activated, an actuator causes a piston rod in a cylinder to move forwards so as to support a receiving member for receiving an object to be protected. A lock mechanism for restricting a backward movement of the piston rod includes a lock ring which is accommodated in an accommodating groove on a piston portion and a locking stepped portion on the cylinder side. The locking stepped portion includes a locking and restricting surface and an outer circumferential restricting surface.

Abstract: The occupant protection system includes a catching body that is housed in a housing located between a near-by seat and a distant seat for upward deployment and a support body that supports the catching body. The catching body covers the impact side of a distant-side occupant to catch the occupant moving toward the impacted lateral and includes a distal end acting as a free end swingable in a left and right direction. The support body is located on a side of the near-by seat close to the impacted lateral for deployment to support the catching body when the catching body swings toward the impacted lateral after receiving the distant-side occupant.

Abstract: A pedestrian protection system is mounted in the front portion of a vehicle, and includes a controller, a forward movement holding mechanism controlled in actuation by the controller, and a contact body that a pedestrian can contact. The controller, when having predicted a collision of a pedestrian with the vehicle based on a signal from a collision predicting sensor, actuates the forward movement holding mechanism to cause a forward movement of the contact body, and based on a signal from a turn sensor when the forward movement holding mechanism carries out an upward rotation or a downward rotation at the time of contact of the forwardly moved contact body with a pedestrian, controls actuation of the restraint body so as to correspond to a pedestrian moving to a front upper side of the vehicle and a pedestrian moving to a front lower side of the vehicle, respectively.

Abstract: An actuator includes a cylinder, a piston rod which moves forwards within the cylinder and a lock mechanism for restricting a backward movement of the piston rod that has moved forwards. The piston rod includes a piston portion and a support rod portion which is made to extend from the piston portion. The lock mechanism includes an annular elastic element which is disposed with an inner circumferential edge made to project further radially inwards than an inner circumferential surface of the cylinder and a groove which is disposed so as to extend along an outer circumferential surface of the piston portion for the annular elastic element to be fitted therein.

Abstract: The invention provides an actuator A configured as an actuator in which a piston 38 disposed in a cylinder 21 is moved together with a supporting rod 45 connected to the piston 38 by introducing a working fluid G into the cylinder 21 and including a locking mechanism R for restricting a reverse movement of the supporting rod 45 which has moved forwards. The locking mechanism R includes a locking pin 43 adapted to project from an outer circumferential surface of the piston 38 which extends around an axis thereof, a flow path 40 which allows a working fluid G which flows into the cylinder 21 to flow, and a locking surface 25 for locking the locking pin 43 and is made to cause the locking pin 43 to project from the outer circumferential surface of the piston 38 by making use of the pressure of the working fluid G which is allowed to flow into an accommodating recessed portion 39 of the locking pin 43 via a flow path 40.

Abstract: A hood panel is arranged in a front end side of a vehicle so as to cover an engine room from above. An air bag system according to the invention includes an air bag which is disposed in a containing part near a front fender which is arranged at an end edge of the hood panel in a lateral direction, so as to cover the substantially entire area in a longitudinal direction of the front fender from above when the air bag has been completely inflated, and an inflator for supplying an inflating gas to the air bag. The air bag has a body part for covering the front fender from the above, and a flow inlet connected to the inflator. The flow inlet is provided in a frontward region of the body part forward from a center in the longitudinal direction in the completely inflated state.

Abstract: An actuator AE1 includes a lock mechanism R1 configured to fill a gas G generated by operating a gas generator 35 at inside of a cylinder 22 and moving forward a piston 38 along with a support rod 40 for restricting a rearward movement of the support rod moved forward. The support rod 40 is arranged to be able to absorb a kinetic energy of a protection object person and capable of being plastically deformed when the protection object person is received by a receiving member after having been moved forward. A lock mechanism R1 is constituted by a diameter enlarging deformed portion 42 arranged at a piston and a locking stepped portion 24 capable of restricting the rearward movement of the piston.

Abstract: A fuel cell system of the present invention includes a fuel cell stack, a fuel system for supplying a fuel gas to the fuel cell stack, and on-off valves which form a closed space not including the fuel cell stack in the fuel system. The closed space is filled with an inspection gas from the on-off valve which functions also as an inspection gas inlet port. After completion of the inspection, the inspection gas in the closed space is discharged from the on-off valve which functions also as an inspection gas outlet port.