摘要:
A park-brake monitoring-system monitors the selected and actual operational states of a park-brake system of a vehicle. The park-brake monitoring-system includes one or more selected-state sensor(s) that produce signals implicative of the selected operational state of the park-brake system and one or more actual state sensor(s) that produce signal(s) implicative of the actual-operational state of the park-brake system. Logic device(s) of the park-brake monitoring-system operate dependent upon input from both the selected state sensor(s) and the actual state sensor(s).
摘要:
A probe case attached to a back plate includes a first elastic locking piece for coupling with the back plate and a second elastic locking piece for fixedly positioning a probe. When the first elastic locking piece is attached to the back plate in a state of not mounting the probe, the first elastic locking piece is brought into a tacked state of being coupled to the back plate attachably and detachably. Further, when the probe is mounted in the tacked state, elastic deformation of the first elastic locking piece is restricted by the probe to thereby bring about a locking state in which the probe case cannot be detached from the back plate. The second elastic locking piece includes a release operating portion for causing elastic deformation for disengaging engagement with the probe.
摘要:
A mechanical sensor for a hand brake quick release mechanism having a housing, flexible clamp, and release shaft having a member with first and second elements. A housing member has open and closed ends. The open end is engageable with a housing outside wall at a point radially opposed to the flexible clamp. A first aperture formed through the closed end is in axial alignment with a second aperture through the housing wall and a third aperture through the flexible clamp. A first portion of the slidable member is disposed within the housing member. A second portion extends through the first aperture, and a portion of the first portion extends through the second and third apertures, engaging with the first element when the release shaft is rotated to achieve and maintain full brake release. A device is provided for urging the slidable member inwardly when the hand brake is applied.
摘要:
A brake shoe assembly includes a backing plate and a brake lining. The brake lining has an interface surface abutting the backing plate and a wear surface for contacting a vehicle. A pair of temperature sensors are positioned adjacent to the interface surface and spaced unequal distances from the wear surface for determining the thickness of the brake lining. The pair of temperature sensors may be embedded directly in the brake lining or encapsulated in one of a plurality of housing embodiments packaged in the brake lining. In a preferred embodiment, a unique brake lining temperature sensor assembly is attached to the brake shoe assembly. The unique temperature sensor assembly includes a body of material having a proximate end positioned adjacent to the backing plate and a distal end for contacting the vehicle concurrently with the wear surface of the brake lining. A heat pipe, disposed within the body of material, extends from the distal end toward the proximate end. A first electrical conductor is attached to the heat pipe to form a first thermoelectric junction. A second electrical conductor is attached to the heat pipe to form a second thermoelectric junction spaced from the first thermoelectric junction. The heat pipe provides a thermal communication path from the distal end of the sensor body to the first and second thermoelectric junctions. In this manner, heat waves or fronts, produced when the distal end of the sensor body contacts the vehicle, are transmitted quickly through the heat pipe from the distal end of the sensor body to the first and second thermoelectric junctions and used to determine the thickness of the brake lining.
摘要:
An electronic sensor for a quick release mechanism in a railcar vertical hand brake having a housing equipped with a flexible clamp mounted on an inside wall, and a release shaft having a member disposed perpendicular to and about the circumference thereof. A first element is disposed on the member and interposes with the flexible clamp when the release shaft is rotated to achieve and maintain a full brake release. A second element engages a projection on a ratchet wheel when the operating shaft is rotated to disengage the first element from the flexible clamp. A sensing device is disposed in a predetermined position for detecting when the release shaft is rotated into a release position, and for communicating a signal, indicating that the hand brake is in the release position. A device for activating the sensing device when the release shaft is rotated is disposed in a predetermined position.
摘要:
A progressive brake lining wear and temperature sensor having a plurality of parallel arranged spaced apart resistors in connection with a sensing circuit. Each resistor is mounted onto a PC board which in turn is encapsulated within a single molding. A thermistor is also mounted onto the PC board within the molding to sense lining temperature. The thermistor is connected to a ground lead. The ground lead, resistance lead and thermistor lead emerge from the encapsulated sensor for connection to the sensing circuit. The sensor is disposed within the brake lining and is connected to the brake shoe by a securement clip. As the brake lining progressively wears, the resistors are progressively worn away thus changing the overall resistance of the sensor. The change in resistance indicates state of wear. Preferably, three resistors are employed to indicate four degrees of brake lining wear.
摘要:
A shopping cart locking system. A locking assembly includes a generally cylindrical retainer having a vertically extending axial slot along the first edge. A rigid bracket is secured along a second edge of the retainer. A clevis at the lower extent of the bracket has apertures, a first vertical space, an upper member with two forwardly extending fingers defining a second vertical space vertically aligned with the first space of the clevis. A foot is selectively positionable between an upper inactive orientation and a lower orientation into frictional braking contact with a wheel below the foot. An upper end of the foot has a generally rectangular recess. A coupling pin extends horizontally through a central extent of the foot and through the recess. A joining leg has an upper end with an aperture located between the first space of the clevis. A first pin rotatably couples the leg to the clevis. The leg has a lower end extending into the recess of the foot. A coupling pin pivotably couples the leg and the foot through an aperture in the leg and an aperture in the foot.
摘要:
A device can indicate the total load of a brake disk made of carbon-fiber-reinforced ceramic material. In order to create such a device, which can be used for brake disks and other friction elements made of carbon-fiber-reinforced ceramic material, an indicator element can be provided in the brake disk starting from the friction surface. The oxidation stability of this indicator element is reduced with respect to the material of the brake disk.
摘要:
A probe (20) has a holder (21) with a small-diameter portion- (25) and a stepped surface (33) at a base end of the small diameter portion (25). The stepped surface (33) is recessed over the entire circumference of a base end of a small-diameter portion (25) to form a groove (40) and an inner corner of the groove (40) is rounded. The probe (20) is mounted by resiliently pressing the stepped surface (33) against the edge of a mount hole (15) in a base plate (13) of a brake shoe (12). A bending force acts on the small-diameter portion (25) of the holder (21) due to the sliding contact of the brake drum (10). However, the rounded portion (41) at the bottom of the groove (40) avoids a stress concentration on an inner corner of the base end of the small diameter portion (25).
摘要:
A method and system for braking aircraft landing gear wheels after initialization of landing gear retraction. The system includes monitors, controlling components, measurement components, a fault recording memory, fault annunciation components, wheel braking system and brakes. The monitors monitor speed of the landing gear wheels and landing gear position. The control component generates braking instructions based on the monitored speed of the wheels and position of the landing gear.