A safety restraint buckle apparatus and method wherein a Hall element is mounted with respect to a housing and a magnet is mounted with respect to the housing, at a distance from the Hall element. A latch is movably mounted between a latched position and an unlatched position. A tongue is movable between an engaged position within the housing and a disengaged position. In the engaged position of the tongue, the latch is in the latched position. An ejector with a pole piece or a pole member is movably mounted between a loaded position and an unloaded position. When the ejector is in the unloaded position, the Hall element operates in a high magnetic state. When the ejector is in the loaded position and the tongue is in the engaged position, the Hall element operates in a low magnetic state because the magnetic flux density is shunted through the tongue. When the latch is in the latched position and the tongue is in the disengaged position with the ejector thus held in an intermediate position, the Hall element operates in a mid magnetic state, between the low magnetic state and the high magnetic state, to indicate a false positive latch condition of the safety restraint buckle apparatus.
A seat belt system for a motor vehicle is provided that includes a seat belt retractable from a seat belt winding roller and having an extent which passes to and through a connecting tongue for releasably connecting the seat belt to a seat latch and having an end secured to an end fixture fixedly connected to the motor vehicle. An electrical lead extends along at least a portion of the longitudinal extent of the seat belt. A measuring device measures a variation in an electrical property of the electrical lead, which varies in correspondence with the extension of the seat belt due to the application of a pulling force on the seat belt. An evaluation device evaluates the measurements performed by the measuring device to yield an output representative of the pulling force applied to the seat belt.
A plate spring urges a base of a buckle device toward an anchor insertion opening side with respect to an anchor plate. Provided that urging force of the plate spring exceeds urging force of a spiral spring, the base is held, by the urging force of the plate spring, at a position at which a rivet contacts an insertion direction side end portion of a long hole. However, when the urging force of the spiral spring exceeds the urging force of the plate spring due to, in order to attach a child seat, pulling out of a webbing belt more than at a time when a body is to be restrained, the base moves against the urging force of the plate spring, and the plate spring pushes a transfer rod. Due to this pushing force being detected by a semiconductor diffusion strain gauge, it can be detected that the child seat is attached on a seat.
The invention relates to a device for monitoring the locking position of a connecting device 5, especially the locking position of a device for fixing a child seat in a motor vehicle, with a base body 11, which can be connected with a support component 7 capable of being locked with a locking component 3, a slider 13 arranged in the base body 11, which when the base body is joined with the support component 7, can be impinged at time of transfer of locking component 3 to the locking position by the locking component and displaced from an initial position into an end position corresponding to the locking position, and with a detection device 15 provided in or at the base body 11 for detection of the correct locking position of the locking component 3 and the support component 7 by detection of the position of the slider 13, whereby the detection device 15 registers, in addition to the locking position, at least one additional position of the slider 13, at a distance from the locking position.
Disclosed is a seat belt buckle. The seat belt buckle comprises a body frame; a release button slidably coupled to the body frame for unlatching a seat belt tongue from the seat belt buckle; a locking lever capable of being pivotally rotated about wings by a predetermined angle; a slider for supporting and fixing the locking lever; and an ejector for pushing the tongue in a longitudinal direction which is a lengthwise direction of the body frame. The body frame has an arch-shaped supporting beam which is integrally formed with the body frame in a manner such that the supporting beam is erected in a vertical direction. The supporting beam serves to limit movement of the slider and increase structural rigidity of the seat belt buckle. The slider has a width which is greater than that of the body frame and possesses shock-absorbing means for increasing durability of the seat belt buckle. The slider is formed with inclined projections. The release button has at least two release projections which are formed with inclined surfaces which are in turn brought into contact with the inclined projections of the slider.
A device for switching a connection according to the state of an apparatus to be monitored, especially a safety switch, includes an actuator having first signaling device preferably be fixed on the apparatus to be monitored. The actuator can be brought into contact with an actuator receiver having a second signaling device and can be detachably held to prevent it from being withdrawn. A signal transfer can be carried out in a contactless manner between the first and the second signaling devices. The actuator and the actuator receiver are engaged in an interlocking manner when touching. The first and second signaling devices are arranged such that signal transfer between the actuator and the actuator receiver is only possible in the position in which they are engaged in an interlocking manner.
