摘要:
A wheelchair is provided with front anti-tip wheels adapted to assist the wheelchair in mounting an obstacle that the wheelchair approaches obliquely. The anti-tip wheels may function as casters, capable of rotating about a vertical axis, or may be fixed for rotation about a horizontal axis only. The anti-tip wheels may include lateral convex surfaces which tend to allow the anti-tip wheel to slide or roll over the obstacle. The lateral convex surfaces may be provided by a laterally oriented rolling element, a convex-shaped hub, a convex-shaped housing that partially surrounds the wheel, or a ball-shaped wheel. Alternatively, rotation of the anti-tip wheel may be controlled such that the wheel rolling surface faces and engages the obstacle.
摘要:
An anti-vibration support system for an engine, comprising an active anti-vibration supporting device including an elastic member adapted to receive a vibration of the engine; a liquid chamber, wherein at least a portion of a wall surface of said liquid chamber is defined by said elastic member; a movable member adapted to change a volume of said liquid chamber; and an actuator that uses an electromagnetic force to drive said movable member, wherein the vibration of the engine is prevented from being transmitted to a vehicle body frame by controlling a supply of electric current to said actuator, and wherein operation of said active anti-vibration supporting device is prohibited when an abnormality in an operational state of the engine is detected.
摘要:
Mountings for a temperature control unit for a vending machine are provided, wherein the interior of the vending machine is divided by a partition into a storage cabinet and a machinery compartment and in which the temperature control unit is inserted to and removed from the machinery compartment from a front side of the vending machine. The mounting includes a movable support means for supporting the temperature control unit movably in a vertical direction, and an operation means for actuating the movable support means only by an operation in the front side of the vending machine. Further, methods for attaching and detaching such units from said mountings are provided. The method for attaching and detaching the unit may be significantly facilitated, and an improved seal between the unit and the partition may be readily achieved.
摘要:
An adjustable support structure for supporting an object adjacent to a building, includes a first support assembly and a second support assembly telescopically connected. One of the first support assembly and the second support assembly includes at least one upwardly extending leg member and is configured to be positioned on a surface substantially perpendicular to the at least one leg member. The other of the first support assembly and the second support assembly includes a top support plate configured to support an object adjacent to the building, and is adjustable between a plurality of vertical positions relative to the surface. The adjustable support structure may also include at least one component connected to one of the first and second support assemblies to add lateral support and enhanced aesthetics.
摘要:
A control unit section made integral with an electric drive unit is improved in vibration resistance performance. In an electric drive unit, with which a control unit section of the drive unit provided with an electric motor is mounted on and made integral, the control unit section comprises power units and a control unit. The power units are immovably fixed to the drive unit, and the control unit is movably supported on the drive unit through a vibration proof support device. Thus, a control board in the form of a thin plate that is liable to generate membrane vibrations is provided whereby the control unit susceptible to vibrations is enhanced in vibration resistance performance to enable making the control unit section vibration proof in structure.
摘要:
A method and a damping device for absorbing an undesired vibration, in particular, a tremor or an oscillation, in which a base is decoupled from the vibration by a positioning actuator. A control unit registers a relative displacement of the foot and a mass caused by the vibration as a deflection of a spring element that links the foot to the mass. There is thus no need for a reference system that acts independently of the vibration to control the positioning actuator, allowing the damping device to be produced at relatively low cost. The time-delayed transfer from the spring element to the mass is also exploited to counteract the vibration before it has an undesired effect on the base.
摘要:
The invention relates to a damper device for damping vibration, the device comprising an energy converter device mounted on a baseplate for fixing to a structure, the energy converter device presenting a moving portion suspended by at least one spring. The moving portion presents at least one flat centering spring extending between an inside region having a first diameter and an outside region having a second diameter, said centering spring presenting at least two cutouts, each being in the form of a branch having at least one segment turning its concave side towards the outside of the spring.
摘要:
A device for damping jerks in a rope (2) comprises a ring (3) made of a resilient material, into the hole (4) of which a loop (2a) of the rope is to be introduced in order to be arranged on the ring in such manner that the ring is elastically deformed when a pulling force is exerted on the rope. The ring (3) has a projection (5), which is formed in one piece with the ring and protrudes from the outside of the ring. The projection is arranged to hook the rope loop introduced into the hole (4) of the ring onto its portion closest to the ring (3) to cause a turning-inside-out-like, elastic deformation of the ring (3) when a pulling force is exerted on the rope (2).
摘要:
A shock damper includes a damper body installed in the frame of a structure and adapted to absorb earthquake shocks, and braces adapted to support the damper body in the frame of the structure, the damper body having a horizontal top plate, a horizontal bottom plate, and a vertical connecting device connected between the horizontal top plate and the horizontal bottom plate, the connecting device being a shaft formed of any of a variety of cross sections, or a plurality of plates of any of a variety of profiles.
摘要:
A mount for a powertrain component of a motor vehicle comprises first and second plates, and a controller. The first plate is connected to one of the powertrain component or a frame of the motor vehicle. The second plate is connected to the other of the powertrain component or the frame of the motor vehicle. The controller measures the capacitance between the first plate and the second plate.