摘要:
Eine Vorrichtung zum Sperren und zum Druckanpassen, insbesondere vorgesehen für den Einsatz bei einer fahrbaren Arbeitsmaschine mit mindestens einer hydraulischen Aktuatoreinrichtung (12) und einer Speichereinrichtung (14), die mittels einer ersten Ventileinrichtung (16) fluidführend miteinander verbindbar oder voneinander trennbar sind, ist dadurch gekennzeichnet, dass vor dem Herstellen der fluidführenden Verbindung durch die erste Ventileinrichtung (16) ein kontrollierter Druckausgleich zwischen der Aktuatoreinrichtung (12) und der Speichereinrichtung (14) über eine Ausgleichseinrichtung (24) zur Vermeidung eines schlagartigen Druckausgleiches veranlasst ist.
摘要:
A wheelchair suspension that inhibits tipping of a wheelchair. The wheelchair suspension prevents upward movement of the front casters with respect to the frame and allows downward movement of the front casters when the wheelchair exhibits a tipping behavior. The wheelchair suspension also biases the front casters downward with respect to the frame when the wheelchair exhibits a tipping behavior.
摘要:
The device has sensors for determining distances (R2 - R4) and inclination angles (A2 - A4) at the levels of a center of gravity (G2 - G4) of a fixed section (2) of a telescopic boom, a sliding section (3) of the boom, and a load (4) including an accessory of the boom, respectively, in order to calculate an instantaneous position of the center of gravity of a carriage. A calculating and processing interface provides a physical parameter relative to the center of gravity and a dynamic parameter relative to a force applied to the center of gravity from values transmitted by the sensors. An independent claim is also included for an oscillating crane carriage comprising a control device.
摘要:
A suspension (1300) for a vehicle is provided. The suspension includes a frame (402) and a releasable locking assembly (1314, 1318, 1320, 1322). The releasable locking assembly has a first assembly (1314) movably coupled to the frame, a second assembly (1318) movably coupled to the frame, and wherein movement of the frame relative to the first and second assemblies causes the first and second assemblies to engage each other to limit further movement of the frame in at least a first direction.
摘要:
The invention relates to a system for maintaining the level of a usable plane (2) of a vehicle, said system comprising at least one set of bellows (12) for supporting the usable plane and at least one level regulating device (17, 16, 70, 57, 32') for aerating and deaerating the bellows (12). According to the invention, at least one control unit (34, 34') is used to activate or deactivate the level regulating device (17, 16, 70) and at least one hydraulic cylinder (7) is used to support the usable plane (2) and can be changed from at least one first operating state to a second operating state by means of the control unit (34, 34'). When the hydraulic cylinder (7) is in the first operating state, pressure changes caused in the hydraulic cylinder (7) by loads on the usable plane (2) can be compared, and when the hydraulic cylinder (7) is in the second operating state, pressure changes caused in the hydraulic cylinder (7) by loads on the usable plane (2) influence the control unit (34, 34') in such a way that the at least one set of bellows (12) can be aerated or deaerated.
摘要:
A working apparatus (10) including a body (11), a front axle (46) and a rear axle (47), each axle (46,47) carrying a pair of ground engaging means (16,17), one at or towards each end of the axle (46,47), front axle mounting means (68,72) mounting the front axle (46) relative to the body (11), and rear axle mounting means (106,107) mounting the rear axle (47) relative to the body (11), the working apparatus (10) being operable in at least two operating modes in each of which the apparatus may move over the ground namely a first mode in which the front (46) and rear (47) axles are suspended from the body (11) by their respective mountings such that the front and the rear axles (46,47) are movable relative to the body (11) in response to irregularities in terrain, and a second mode in which one of the front and rear axles (46,47) is suspended from the body (11) by the respective axle mounting means whilst the other (47,46) of the axles is constrained to oscillate about a longitudinal axis (A) which is substantially fixed relative to the body (11) in response to irregularities in terrain.
摘要:
A wheeled vehicle (1) is provided with an axle (17) that oscillates about a longitudinal axis (19). The vehicle (1) is moreover provided with a bottom chassis (2); a top chassis (5), which is able to turn with respect to the bottom chassis (2) about a vertical axis (11) and which carries an operating arm (9); and two hydraulic cylinders (20), which can be activated by a control circuit (28) for blocking oscillation of the axle (17) with respect to the bottom chassis, (2) about the longitudinal axis (19). The vehicle (1) has a first sensor (46) designed to detect the angular position of the arm (9) about the vertical axis (11), and a second sensor (35), designed to detect a condition of braking of the vehicle (1). The control circuit (28) is able to block the cylinders (20) and hence the axle (17) automatically when the vehicle (1) is braked by the driver or when the arm (9) exits from an angular safety range (A).